EP1695430A1 - Energy converter arranged on rotating elements and used to convert mechanical energy into electric energy - Google Patents
Energy converter arranged on rotating elements and used to convert mechanical energy into electric energyInfo
- Publication number
- EP1695430A1 EP1695430A1 EP04790048A EP04790048A EP1695430A1 EP 1695430 A1 EP1695430 A1 EP 1695430A1 EP 04790048 A EP04790048 A EP 04790048A EP 04790048 A EP04790048 A EP 04790048A EP 1695430 A1 EP1695430 A1 EP 1695430A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mass
- energy
- rotating element
- energy converter
- converter
- 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.)
- Withdrawn
Links
- 239000000725 suspension Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/041—Means for supplying power to the signal- transmitting means on the wheel
- B60C23/0411—Piezoelectric generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/041—Means for supplying power to the signal- transmitting means on the wheel
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1869—Linear generators; sectional generators
- H02K7/1876—Linear generators; sectional generators with reciprocating, linearly oscillating or vibrating parts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
- H10N30/304—Beam type
- H10N30/306—Cantilevers
Definitions
- Energy converter arranged on rotating elements for converting mechanical into electrical energy
- the invention relates to an energy converter arranged on rotating elements for converting mechanical into electrical energy, with a converter element for converting mechanical energy into electrical energy, a first mass and a second mass, the second mass being connected to the rotating element.
- the supply of electronic circuits such as small radio transmitters, small sensors connected to radio transmitters, so-called radio sensors, radio switches or the like, which are often fitted to monitor or measure a physical parameter on rotating elements, are generally used with battery-operated energy supplies.
- a disadvantage of the battery-operated energy supplies is the limited service life of the battery energy store, which is then to be replaced by a new battery or a new energy store. This requires a high level of maintenance and possibly leads to unnoticed failures of the electronic circuit in connection with the sensor and the devices connected to it.
- energy converters are known, such as, for example, electromagnetic magnetostrictive or piezoelectric converters which can also be implemented in a compact design and are sometimes suitable for converting kinetic energy into electrical energy, especially in a sufficient amount.
- electromagnetic magnetostrictive or piezoelectric converters With rotating elements, if such a sensor or power supply for supplying such circuits is to be mounted, an additional problem arises. This results from strong centrifugal forces. These centrifugal forces mean that the electrodynamic magnetostrictive or piezoelectric transducer elements remain in a deflection which is excited by the centrifugal forces and can therefore no longer contribute to the energy supply in this form. Smallest manufacturing tolerances or assembly tolerances can exacerbate this problem.
- Such an energy converter does not use the rotational energy itself to generate the energy, but rather superimposed movements or changes in the rotational speed.
- the invention solves the problem by the measures proposed in claim 1. These are advantageously further developed by the measures proposed in the subclaims.
- An energy converter arranged on a rotating element for converting mechanical to electrical energy, with a converter element and a first mass and a second mass is designed such that a relative movement between the two masses acts on the converter element.
- One of the two masses for example the second mass, is connected to the rotating element, so that one of the rotation deviating, or a force changing the rotation acts on the mass 1. This results in a movement of the two masses towards each other caused by these forces. This happens because the first mass is free with respect to the rotating element or is not directly connected to the rotating element. The forces independent of the rotation, or other forces, thus act on the first mass and stimulate it to move. Since the second mass is connected to the rotating element, there is a relative movement of the two masses to one another, which acts on the transducer element and can be converted into electrical energy.
- the freedom of movement is restricted between the first mass and the second mass such that the first mass can only be moved in one plane with respect to the second mass. This advantageously results in independence from the force acting on the mass 1 in the direction of the centrifugal rotational force.
- the converter element is therefore independent of these forces. Forces that originate in a movement superimposed on the rotation or a change in the rotation then act on the first mass and stimulate it to move.
- connection of the second mass to the rotating element is designed in such a way that the centrifugal force of rotation aligns the second mass exactly such that the plane in which the first mass is movable is perpendicular to the centrifugal force of rotation.
- a possible assembly tolerance or manufacturing tolerance of the energy converter is thus advantageously eliminated.
- the connection between the rotating element and the second mass is like this executed that this is rotatably mounted, for example by a spring element or an axis. This causes the second mass to align itself exactly under the influence of the centrifugal force, similar to a centrifugal pendulum.
- the plane in which the first mass moves is also exactly aligned and perpendicular to the centrifugal rotational force.
- the first mass If the first mass is observed during an imaginary period of time t, the first mass describes a circular path which has its center in the axis of rotation of the rotating element. Exactly on this circular path lies tangentially the plane in which the first mass moves. Due to the rotational centrifugal alignment of the second mass and the mechanical connection of the first mass with the second mass, which is designed so that it can only move in a plane that is perpendicular to the rotational centrifugal force, it is achieved that the first mass does not require any lifting work must perform in the force field of the rotational centrifugal force. This ensures even with small or large manufacturing and assembly tolerances that the first mass is not held by the centrifugal rotation in a deflection in which further forces or movements on the first mass for generating electrical energy would be relatively ineffective.
- transducer element is independent of this principle described so far and could be a piezoelectric, a magnetically strict or an electromagnetic transducer element, although other transducer elements are basically suitable if they are able to convert mechanical energy into electrical energy.
- transducer element through the above measures is protected from the extreme centrifugal forces.
- Figure 1 is a schematic representation of a rotating element with an energy converter
- Figure 2 is a perspective schematic representation of a rotating element with an energy converter
- FIG. 3 shows a detailed representation of an embodiment of the energy converter on a rotating element
- Figure 4 shows another embodiment of the energy converter on a rotating element
- Figure 5 shows another embodiment of the energy converter on a rotating element.
- Figure 1 shows a schematic representation of a rotating element 1 which rotates about an axis.
- a second mass M2 which is connected to a converter element 2 is arranged on this rotating element 1.
- a first mass Ml which is also connected to the Wandle element 2, is freely movable relative to the rotating element 1. Every movement of the rotating element 1, or every change in the rotation or every movement independent of the rotation acts on the mass M1 and leads to a relative movement of the first and the second masses M1, M2 to one another. This relative movement causes a force on the converter element 2 and leads to the generation of electrical energy thereon by separation of charges.
- FIG. 2 shows a schematic representation in perspective, the rotating element 1 being shown only in sections.
- the rotation of the rotating element 1 causes a rotational centrifugal force FR that is perpendicular to the axis of rotation of the rotating element 1.
- the second mass M2 arranged and fastened on the rotating element 1 is fastened to it by a bearing 3 such that the mass M2 can be moved about this bearing 3.
- the centrifugal force FR precisely aligns the second mass M2, so that the center of gravity of the second mass M2 is at an energetic minimum under the influence of the centrifugal force occurring during the rotation.
- the first mass Ml is connected to the second mass M2 via the transducer element 2 such that the first mass Ml can only be moved in one plane El.
- the plane El is oriented perpendicular to the centrifugal rotational force FR. This causes the mass Ml to move in a plane that is tangent to a circular path around the axis of rotation. With slight movements, this means that no lifting work of the mass M1 has to be carried out in the force field of the centrifugal rotational force.
- FIG. 3 shows a partially schematic representation of an embodiment of an energy converter based on a rotating element 1 via a bearing or a bendable plate, for example a spring, 3 is attached to the rotating element 1.
- the mass M2 is made larger than the mass Ml, which means that the deflection of the mass M2 excited and caused by the centrifugal force is not influenced by the mass Ml.
- the converter element 2 is a piezo element that is connected to the mass M1.
- the mass M1 oscillates in the directions indicated in the direction of the arrow.
- the freedom of movement of the first mass Ml is restricted to the level El.
- the plane El is formed by the suspension of the mass M2 via the spring 3 and is perpendicular to the rotational centrifugal force FR.
- FIG. 4 shows an energy converter similar to the exemplary embodiment in FIG. 3, the suspension and fastening on the rotating element 1 being the same as the suspension described and shown in FIG.
- the differences in FIG. 4 essentially relate to the shape of the transducer element 2, which is shown as an inductive or electromagnetic transducer element.
- the first mass M1 oscillates in a coil, with the freedom of movement of the first mass M1 being limited to the plane El here too.
- FIG. 5 shows, in a partially schematic representation, an exemplary embodiment of an energy converter which is fastened on the rotating element 1 on a rotating element 1 by means of a bearing or a bendable plate, for example a spring 3.
- the mass M2 is made larger than the mass Ml, which has the effect that the deflection of the mass M2 which is excited and caused by the centrifugal force does not occur the mass Ml is influenced.
- the converter element 2 is a piezo element that is connected to the mass M1.
- the mass M1 oscillates in the directions indicated by arrows.
- the mass M1 is connected to the mass 2 with an elastic element 4.
- This elastic element 4 is designed so that the mass Ml is only movable in one plane. Furthermore, the transducer element 2 is firmly connected to the mass M1 at one end and is held at the opposite end by a bearing element 5. If the mass M1 moves in the plane E1, the transducer element 2 is deformed.
- the bearing element is firmly connected to the mass M2 and is designed such that the transducer element 2. is not held in the direction of the centrifugal force FR. Although the movement in the direction of the centrifugal rotational force FR is small due to the properties of the elastic element 4 or is not present, any deformation caused thereby is additionally excluded.
- the freedom of movement of the first mass M1 is restricted to the plane El by the elastic element 4.
- the plane El is formed by the suspension of the mass M2 via the spring 3 and is perpendicular to the rotational centrifugal force FR.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10359990A DE10359990B4 (en) | 2003-12-19 | 2003-12-19 | Energy converters arranged on rotating elements for the conversion of mechanical into electrical energy |
PCT/DE2004/002388 WO2005062443A1 (en) | 2003-12-19 | 2004-10-27 | Energy converter arranged on rotating elements and used to convert mechanical energy into electric energy |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1695430A1 true EP1695430A1 (en) | 2006-08-30 |
Family
ID=34706370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04790048A Withdrawn EP1695430A1 (en) | 2003-12-19 | 2004-10-27 | Energy converter arranged on rotating elements and used to convert mechanical energy into electric energy |
Country Status (4)
Country | Link |
---|---|
US (1) | US7667376B2 (en) |
EP (1) | EP1695430A1 (en) |
DE (1) | DE10359990B4 (en) |
WO (1) | WO2005062443A1 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10359990B4 (en) * | 2003-12-19 | 2006-11-16 | Enocean Gmbh | Energy converters arranged on rotating elements for the conversion of mechanical into electrical energy |
DE102005051999C5 (en) * | 2005-10-31 | 2016-11-17 | Samson Ag | Apparatus for monitoring the assumption of a predetermined operating position, such as an operational emergency position, by a movable actuator and actuator assembly |
DE102007007016B4 (en) * | 2006-02-08 | 2016-01-14 | Continental Teves Ag & Co. Ohg | tire module |
DE102007010782B4 (en) * | 2006-03-02 | 2016-02-04 | Continental Teves Ag & Co. Ohg | Tire module with piezoelectric transducer |
DE102007010780B4 (en) * | 2006-03-02 | 2016-01-28 | Continental Teves Ag & Co. Ohg | Tire module with piezoelectric transducer |
DE102006039936B4 (en) * | 2006-08-25 | 2011-07-28 | EnOcean GmbH, 82041 | Electromechanical rotary converter and method for generating electrical energy by means of an electromechanical rotary converter |
US7449614B2 (en) | 2006-08-29 | 2008-11-11 | Kimberly-Clark Worldwide, Inc. | Absorbent articles including a monitoring system powered by ambient energy |
ITRM20070079A1 (en) * | 2007-02-15 | 2008-08-16 | Wisepower S R L | BISTABLE PIEZOELECTRIC GENERATOR. |
JP5305463B2 (en) * | 2007-11-13 | 2013-10-02 | 浩平 速水 | Power generation unit and light emitting device |
WO2010148312A2 (en) * | 2009-06-19 | 2010-12-23 | The Regents Of The University Of Michigan | Increased frequency power generation using low-frequency ambient vibrations |
KR20110026644A (en) * | 2009-09-08 | 2011-03-16 | 한국전자통신연구원 | The piezoelectric energy harvester and manufacturing method thereof |
US8212436B2 (en) * | 2010-02-01 | 2012-07-03 | Oscilla Power, Inc. | Apparatus for harvesting electrical power from mechanical energy |
US7936109B1 (en) | 2010-03-31 | 2011-05-03 | Hong Kong Applied Science And Technology Research Institute Co. Ltd. | Non-resonant energy harvesting devices and methods |
EP2564410A4 (en) * | 2010-04-27 | 2017-01-25 | Oscilla Power Inc. | Apparatus for harvesting electrical power from mechanical energy |
WO2012067707A1 (en) * | 2010-11-17 | 2012-05-24 | Massachusetts Institute Of Technology | Passive, self-tuning energy harvester for extracting energy from rotational motion |
DE102013211522A1 (en) | 2013-06-19 | 2014-12-24 | Robert Bosch Gmbh | Sensor for detecting a physical property in a drive train of a motor vehicle |
TWI584975B (en) * | 2013-10-31 | 2017-06-01 | 國立臺灣師範大學 | Transportation |
US9680324B2 (en) | 2015-03-06 | 2017-06-13 | Ruskin Company | Energy harvesting damper control and method of operation |
US10317099B2 (en) | 2015-04-16 | 2019-06-11 | Air Distribution Technologies Ip, Llc | Variable air volume diffuser and method of operation |
US10132553B2 (en) | 2016-07-05 | 2018-11-20 | Johnson Controls Technology Company | Drain pan removable without the use of tools |
US10704800B2 (en) | 2016-09-28 | 2020-07-07 | Air Distribution Technologies Ip, Llc | Tethered control for direct drive motor integrated into damper blade |
FR3122049B1 (en) | 2021-04-15 | 2023-03-03 | Commissariat Energie Atomique | Electromagnetic device for converting mechanical energy into electrical energy |
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AU536679B2 (en) | 1979-11-27 | 1984-05-17 | Imperial Clevite Inc. | Vibrating transducer power supply in abnormal tire condition warning systems |
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CN1136664C (en) * | 1997-02-12 | 2004-01-28 | 恩洋股份有限公司 | Device and method for producing coded high-frequency signals |
DE19728419A1 (en) * | 1997-07-03 | 1999-02-04 | Continental Ag | Method for determining the number of revolutions of a body and body rotating about an axis of rotation which is rotatably mounted about an axis of rotation |
AU9059698A (en) * | 1998-03-25 | 1999-10-18 | Detra S.A. | Converter of mechanical energy into electric energy and apparatus equipped with same |
DE19929341A1 (en) * | 1999-06-26 | 2000-12-28 | Abb Research Ltd | Arrangement for wireless electric power supply of number of sensors and/or actuators has component for converting acceleration into electrical energy integrated into sensors/actuators |
DE19953489C1 (en) * | 1999-11-06 | 2001-05-10 | Continental Ag | Electrical energy generation method using rotation of vehicle wheel has transducer providing induced voltage upon interaction of permanent magnet with steel reinforcement of tire |
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DE10125059C5 (en) * | 2001-05-22 | 2016-07-21 | Enocean Gmbh | Inductive voltage generator |
JP2003209980A (en) * | 2001-11-12 | 2003-07-25 | Jigyo Sozo Kenkyusho:Kk | Oscillatory generator |
US7081693B2 (en) * | 2002-03-07 | 2006-07-25 | Microstrain, Inc. | Energy harvesting for wireless sensor operation and data transmission |
US7429801B2 (en) * | 2002-05-10 | 2008-09-30 | Michelin Richerche Et Technique S.A. | System and method for generating electric power from a rotating tire's mechanical energy |
DE10255432A1 (en) * | 2002-11-28 | 2004-06-09 | Conti Temic Microelectronic Gmbh | Mobile power supply unit |
DE10259056A1 (en) * | 2002-12-17 | 2004-09-02 | Enocean Gmbh | Process of energy generation for rotating parts and radio sensor operated with it |
DE10359990B4 (en) * | 2003-12-19 | 2006-11-16 | Enocean Gmbh | Energy converters arranged on rotating elements for the conversion of mechanical into electrical energy |
US7078850B2 (en) * | 2004-07-20 | 2006-07-18 | Usc Corporation | Piezoelectric power generation device and piezoelectric ceramics member used therefor |
CN1985380A (en) * | 2004-10-21 | 2007-06-20 | 米其林技术公司 | Miniatured piezoelectric based vibrational energy harvester |
US7132757B2 (en) * | 2005-02-17 | 2006-11-07 | General Electric Company | Power control system and method |
GB0525989D0 (en) * | 2005-12-21 | 2006-02-01 | Qinetiq Ltd | Generation of electrical power from fluid flows |
US20080129153A1 (en) * | 2006-06-30 | 2008-06-05 | Roundy Shadrach J | Inertial energy scavenger |
US7414351B2 (en) * | 2006-10-02 | 2008-08-19 | Robert Bosch Gmbh | Energy harvesting device manufactured by print forming processes |
KR100817319B1 (en) * | 2006-11-01 | 2008-03-27 | 한국과학기술연구원 | Electric power generating apparatus for movement type equipment and self-generation system having the same |
-
2003
- 2003-12-19 DE DE10359990A patent/DE10359990B4/en not_active Expired - Fee Related
-
2004
- 2004-10-27 EP EP04790048A patent/EP1695430A1/en not_active Withdrawn
- 2004-10-27 WO PCT/DE2004/002388 patent/WO2005062443A1/en active Application Filing
-
2006
- 2006-06-19 US US11/455,360 patent/US7667376B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2005062443A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE10359990B4 (en) | 2006-11-16 |
US7667376B2 (en) | 2010-02-23 |
US20080258581A1 (en) | 2008-10-23 |
WO2005062443A1 (en) | 2005-07-07 |
DE10359990A1 (en) | 2005-08-04 |
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