EP2932581A2 - Actionneur - Google Patents

Actionneur

Info

Publication number
EP2932581A2
EP2932581A2 EP13805856.5A EP13805856A EP2932581A2 EP 2932581 A2 EP2932581 A2 EP 2932581A2 EP 13805856 A EP13805856 A EP 13805856A EP 2932581 A2 EP2932581 A2 EP 2932581A2
Authority
EP
European Patent Office
Prior art keywords
heat sink
actuator according
electronics
actuator
housing part
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Withdrawn
Application number
EP13805856.5A
Other languages
German (de)
English (en)
Inventor
Joachim Von Willich
Christian Reimann
Vinzent Kremina
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP2932581A2 publication Critical patent/EP2932581A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/40—Structural association with grounding devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/08—Insulating casings
    • 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
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/227—Heat sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
    • F02D2011/102—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles at least one throttle being moved only by an electric actuator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1075—Materials, e.g. composites
    • F02D9/108—Plastics

Definitions

  • the invention relates to an actuator with a metal housing consisting of several housing parts, an electric motor, an actuator, a movement of the electric motor to the actuator adjusting the transmission mechanism and electronics for controlling the electric motor.
  • Such actuators have an electric motor-driven actuator in the form of a flap, a pin or are used as actuators or valves in motor vehicles and are thus known.
  • the metal housing used are usually cast aluminum housing, since such housing have sufficient strength at relatively low weight. In order to bring the components into the housing, this consists of two or more housing parts. Since actuators in motor vehicles are generally exposed to high temperatures, the multi-part aluminum housing is used because of its good thermal conductivity for cooling the components arranged in the housing, in particular the electronics. When using the actuator in the high temperature range, it is also known to provide active cooling in the form of water cooling in the housing. The disadvantage is that the arrangement of a water cooling greatly increases the cost of the aluminum housing. For housings without water cooling, the housing parts for a sufficient heat capacity must have relatively thick walls in order to achieve a good cooling. As a result, such a housing has a relatively high weight.
  • the invention is therefore an object of the invention to provide an actuator that is simple and inexpensive.
  • the actuator should have a low weight.
  • the object is achieved in that at least one housing part is made of plastic, that in the region of the housing made of plastic, a heat sink is arranged, that the heat sink has thermal bonding surfaces for the electronics and that the heat sink is connected to a metallic housing part.
  • the arrangement of a separate heat sink allows the cooling of certain areas and / or components in the housing. This has a particularly advantageous effect on heat-producing components, in particular electronics. Due to the cooling components with lower heat resistance and thus less expensive components can be used. By the cooling no longer has to be taken over exclusively by the housing, the corresponding housing part may be made of a plastic, which also can be dispensed with the use of high temperature resistant plastics and instead less expensive plastics are used. The main advantage, however, is that the actuator has a significantly lower weight through the use of plastic.
  • the housing part is a plastic cover
  • this configuration makes it possible for the electronics to be fastened to the plastic cover due to the insulating properties of plastic.
  • a separate attachment of the electronics can be saved with it.
  • the KunststoffStoffdeckel may have appropriate recordings or domes, in the appropriately designed holding elements, eg. B. holes, rest stops, the electronics are clipped. Such recordings can be produced in a simple manner during the production of the lid by means of injection molding. Additional retaining elements on the electronics can be dispensed with according to a further embodiment if individual strip conductors are designed to be clipped into the receptacles of the plastic cover.
  • Good cooling is achieved when a metal body is used as a heat sink. Due to the thermal conductivity of metals, these substances are better than other materials.
  • An improved cooling or the use of a smaller metal body as a heat sink is achieved in that the metal body contains at least one metal with good thermal conductivity, preferably copper or aluminum.
  • an improved heat dissipation from the electronics is achieved in that the electronics has heat transfer surfaces which are connected to the thermal bonding surfaces of the heat sink.
  • Unnecessary heating of the electronics is avoided by arranging the heat transfer surfaces in the vicinity of highly heat-producing electrical components of the electronics. In this way, the heat is dissipated in a short path to the heat sink without heating other areas of the electronics.
  • thermal connection surfaces have an electrically non-conductive coating, preferably made of plastic or a lacquer.
  • such interference may be intentional, particularly if the housing is to be brought to a defined electrical level, which has advantages, for example, in electromagnetic compatibility.
  • the transfer surfaces are electrically conductive, for example, by the metal body and the transfer surfaces are uncoated.
  • Such a defined electrical level can be, for example, the electrical connection of the housing via the heat sink with parts of the electronics which are at ground potential.
  • a particularly simple connection of the electronics to the heat sink is achieved via the thermal connection surfaces, if these are designed as convex areas in the direction of the electronics.
  • connection surfaces create a certain bias, whereby an intimate contact between the heat sink and electronics is achieved.
  • An additional fixed mounting of the heat sink to the electronics can therefore be dispensed with.
  • Another advantage of this design is that convex curved areas can be relatively easily produced by means of embossing.
  • thermal bonding surfaces can be formed in a further embodiment as in the direction of the electronics bent tabs. These areas to be produced by means of punching are easy to produce. Due to their design, they also have a bias to ensure reliable contact with the electronics.
  • the heat capacity of the heat sink can be increased in a simple manner by virtue of the fact that the thermal bonding surfaces are solid metal bodies, preferably cuboids or cylinders. With this configuration, the heat transfer between a component to be cooled and the heat sink can be increased.
  • the solid metal body can be connected with little effort by gluing or soldering with the heat sink.
  • the metal body By pressing the massive metal body in recesses of the heat sink, the metal body can be connected without additives to the heat sink.
  • the heat sink is relatively simple if the heat sink has recesses for components of the actuator. Through these recesses, the Heat sink is guided around the components and can maintain a substantially flat shape, which allows a simple structure and easier production.
  • the function as a heat sink is further improved when the metal body has webs, which are in contact with the metallic housing part so as to dissipate the heat in housing parts.
  • the webs can be angled at any angle to the heat sink.
  • the housing may also have recordings, in which engage the webs.
  • the webs are formed according to an advantageous embodiment such that they are under bias to the housing in contact.
  • a bias voltage is already achieved when the end of the webs L-, U- or V-shaped is bent.
  • the bias is generated by the spring action of the end.
  • the bias can be done in another embodiment by the shape of the receptacle of the housing.
  • the recording can be configured, for example with insertion bevels. Such a shape is also easy to produce.
  • FIG. 2, 3 further sections of the actuator of FIG. 1 and
  • FIG. 4 shows the heat sink according to FIG. 1.
  • FIG. 1 shows a part of a housing 1 made of aluminum of an actuator in a motor vehicle with an actuator 2, wel Ches via a shaft 3, gears 4 - 6, by a pinion 7 of an electric motor 8 is driven.
  • the electric motor 8 is arranged in a chamber of the housing 1.
  • An artificial material cover 9 is connected to the housing 1, the synthetic material cover 9 covering the area of the electric motor 8 and the toothed wheels 4-6.
  • an electronics 10 is present.
  • the electronics 10 consists of a printed circuit board 11 with electrical components 12 arranged thereon.
  • a metal body acting as a heat sink 13 is arranged between the gears 4 - 6 and the electronics 10, a metal body acting as a heat sink 13 is arranged.
  • the heat sink 13 has recesses 14, 15.
  • a tab 16 of the heat sink 13 is in contact with the electronics 10 as a thermal connection surface under prestress.
  • FIG 2 shows the housing 1 with the plastic cover 9.
  • dome 17 To attach the electronics 10 in the plastic cover 9 9 dome 17, 18 are molded onto the plastic cover, with which the electronics 10 is connected or clipped.
  • Figure 3 shows the heat sink 13 with webs 20, 21, which in
  • FIGS. 1-3 All embodiments of FIGS. 1-3 is common that the heat sink 13 arranged at lower thermal stresses in the plastic cover 9, preferably encapsulated, be can.
  • FIG. 4 shows the heat sink 13 in a perspective view from above.
  • the heat sink 13 is a metal body made by punching from a metal sheet.
  • the heat sink 13 has two webs 20, 21 angled downward by 90 ° for connection to the metal housing.
  • An upwardly bent tab 16 and convexly upwardly curved portions 19 form the thermal bonding surfaces.
  • the heat sink 13 further has two recesses 14, 15 in which components of the actuator can engage. As a result of the recesses 14, 15, the heat sink can have a substantially planar shape, whereby the heat sink 13 can be easier to produce as a stamped part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne un actionneur comprenant un boîtier métallique (1) composé de plusieurs pièces de boîtier (1, 9), un moteur électrique (8), un élément de réglage (2), un mécanisme de transmission (4 - 7) qui ajuste le mouvement du moteur électrique (8) sur l'élément de réglage (2) et un système électronique (10) permettant de commander le moteur électrique (8). Au moins une pièce (9) du boîtier est composée de matière plastique, et un dissipateur thermique (13) se trouve dans la zone de la pièce (9) du boîtier en matière plastique. Le dissipateur thermique (13) possède des surfaces de connexion thermique (16, 19) pour le système électronique (10) et est relié à une pièce métallique (1) du boîtier.
EP13805856.5A 2012-12-14 2013-12-12 Actionneur Withdrawn EP2932581A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012223297 2012-12-14
PCT/EP2013/076378 WO2014090946A2 (fr) 2012-12-14 2013-12-12 Actionneur

Publications (1)

Publication Number Publication Date
EP2932581A2 true EP2932581A2 (fr) 2015-10-21

Family

ID=49766079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13805856.5A Withdrawn EP2932581A2 (fr) 2012-12-14 2013-12-12 Actionneur

Country Status (4)

Country Link
US (1) US20150333603A1 (fr)
EP (1) EP2932581A2 (fr)
CN (1) CN104838569A (fr)
WO (1) WO2014090946A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3032314B1 (fr) * 2015-02-04 2017-01-20 Mmt Sa Actionneur de positionnement et procede de fabrication
CN107923546B (zh) * 2015-08-31 2020-03-10 日立汽车系统株式会社 驱动器及驱动器一体型电动执行器
DE102016212668A1 (de) 2016-07-12 2018-01-18 Mahle International Gmbh Stellvorrichtung
CN106523766A (zh) * 2016-12-29 2017-03-22 天津特克执行器有限公司 高强度耐腐蚀的全塑料外壳执行器
US11096268B2 (en) 2018-07-27 2021-08-17 Dura Operating, Llc Motor power pack with overmolded printed circuit board integrated connector
US11146147B2 (en) 2018-07-27 2021-10-12 DUS Operating, Inc. Motor power pack with overmolded printed circuit board integrated connector
DE102019113274A1 (de) * 2019-05-20 2020-11-26 HELLA GmbH & Co. KGaA Elektromechanische Vorrichtung mit einem Stellantrieb und einem Stellglied
FR3103978A1 (fr) * 2019-12-03 2021-06-04 Faurecia Systemes D'echappement Actionneur électrique, ensemble, ligne d’échappement et véhicule comportant un tel actionneur

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DE102008049369A1 (de) * 2008-09-27 2010-04-01 Valeo Systèmes d'Essuyage Elektromotorischer Hilfsantrieb für Fahrzeuge

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JP2003182606A (ja) * 2001-12-17 2003-07-03 Toyoda Mach Works Ltd 電動パワーステアリング装置
DE10205402A1 (de) * 2002-02-09 2003-08-14 Bosch Gmbh Robert Elektromotor
US7857238B2 (en) * 2002-10-02 2010-12-28 Sbr Investments Company Llc Vehicle windshield cleaning system
JP4275614B2 (ja) * 2004-12-10 2009-06-10 三菱電機株式会社 車両用回転電機
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JP5287787B2 (ja) * 2010-04-16 2013-09-11 株式会社デンソー 電動装置
CN201766448U (zh) * 2010-09-10 2011-03-16 张慈庆 Ay系列行星式电动执行机构
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Also Published As

Publication number Publication date
US20150333603A1 (en) 2015-11-19
CN104838569A (zh) 2015-08-12
WO2014090946A2 (fr) 2014-06-19
WO2014090946A3 (fr) 2015-03-19

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