WO2009083293A1 - Leistungsschaltung - Google Patents
Leistungsschaltung Download PDFInfo
- Publication number
- WO2009083293A1 WO2009083293A1 PCT/EP2008/064535 EP2008064535W WO2009083293A1 WO 2009083293 A1 WO2009083293 A1 WO 2009083293A1 EP 2008064535 W EP2008064535 W EP 2008064535W WO 2009083293 A1 WO2009083293 A1 WO 2009083293A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit breaker
- drive unit
- heat
- heat accumulator
- circuit
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0209—External configuration of printed circuit board adapted for heat dissipation, e.g. lay-out of conductors, coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/30—Technical effects
- H01L2924/301—Electrical effects
- H01L2924/3011—Impedance
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/06—Thermal details
- H05K2201/066—Heatsink mounted on the surface of the PCB
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
- H05K2201/09781—Dummy conductors, i.e. not used for normal transport of current; Dummy electrodes of components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10166—Transistor
Definitions
- the invention relates to a power circuit for controlling a drive unit for a wiper system of a motor vehicle, by means of which, for example, the movement of a windshield wiper can be controlled.
- a power circuit for controlling a drive unit for a wiper system of a motor vehicle is known.
- a circuit breaker is provided.
- the circuit breaker In such a power circuit, the circuit breaker must be dimensioned such that it does not fail even when the drive unit is locked, for example when the wipers are frozen in winter on a pane to be wiped. In order to be able to safely absorb the suddenly occurring peak power in the case of blocking the drive unit without failing, the circuit breaker is deliberately oversized so that the circuit breaker has a correspondingly low-resistance. This leads to increased production costs.
- the power circuit according to the invention for controlling a drive unit for a wiper system of a motor vehicle has a circuit breaker for driving the drive unit, which is thermally connected to a heat storage for receiving a heat generated in the circuit breaker in the blocking case of the drive unit.
- the heat storage it is possible in the circuit breaker dissipate sudden heat and stored in particular spaced from the circuit breaker.
- the knowledge is exploited that the essential load of the circuit breaker in case of blocking the drive unit is generated by heat and the dimensions of the circuit breaker depends on the maximum occurring in the case of blocking temperature.
- the maximum occurring temperature can be lowered in the circuit breaker, so that the circuit breaker can be made smaller and the power circuit allows the use of a high-resistance circuit breaker, thereby reducing the manufacturing cost of the power circuit.
- the heat storage it is not necessary by the heat storage to achieve a required temperature reduction in the circuit breaker exclusively by natural convection, so that mounted on the circuit breaker heat sinks are not required. Compared to heat sinks, the temperature reduction can be done faster by the heat storage, so that early heat can be dissipated and lower maximum temperatures can be achieved. Also, it is not necessary to bring about heat dissipation only via connected lines and / or a printed circuit board, which have a significantly lower thermal conductivity and / or heat capacity, so that over the Heat storage faster more heat can be dissipated from the circuit breaker.
- the average heat output of heat energy per unit time at a certain temperature is larger by a factor f by the heat storage, in particular compared to the heat output, which can be dissipated by the lines and the circuit board, wherein for the factor ff> 1.2, in particular f > 1.8, preferably f> 2.5 and particularly preferably f> 4.0. Furthermore, the heat accumulator connected thermally to the circuit breaker allows a dissipation of the heat generated by the ohmic resistance of the circuit breaker.
- the heating of the circuit breaker is much slower, so that a blockage of the drive unit can be detected in time, for example, a monitoring software with suitable sensors before the circuit breaker can assume a critical temperature, since an emergency shutdown can already be done at lower temperatures of the circuit breaker.
- the heat storage is mainly made of a metallic material, so that the heat transfer into the interior of the heat storage can be done very quickly. This leads to a better distribution of heat in the heat storage, so that the average outside temperature of the heat accumulator increases accordingly slower and in the case of blocking the drive unit for a long time a high temperature gradient is maintained from the circuit breaker to the heat storage.
- the heat accumulator consists in particular essentially of copper or copper alloys.
- the heat accumulator on a compact solid-shaped geometry, whereby the individual portions of the heat accumulator have a good thermal contact with each other. This facilitates the heat distribution within the heat accumulator, so that high outside temperatures are avoided. In addition, bottlenecks, which have a high heat transfer current compared to the other areas of the heat accumulator, are avoided.
- the heat storage is substantially parallelepiped-shaped, whereby an easily manufactured compact design is made possible, which can be particularly easily arranged in thermal contact with the circuit breaker on a common circuit board.
- the heat accumulator has a higher thermal conductivity than the average thermal conductivity of the circuit breaker. Due to the higher thermal conductivity of the heat accumulator, the heat from the circuit breaker to the heat storage can be derived very quickly.
- the heat accumulator can be produced by soldering, in particular accumulation of solder material.
- soldering in particular accumulation of solder material.
- the heat storage can be generated by a certain point is repeatedly provided with a conductor, so that there are several layers of traces, which the solid and compact form designed heat storage.
- the power switch and the heat accumulator are connected to a common printed circuit board and in particular the power switch is connected via an electrical line to the heat accumulator.
- the electrical line can thereby simultaneously perform a function as a heat conductor and derive the resulting heat in the circuit breaker to the preferably spaced-apart heat storage.
- An insulating connection between the heat storage and the circuit breaker is not required.
- the circuit board itself can absorb some of the heat and deliver it over its comparatively large surface by means of natural convection to the environment.
- the power switch can have a field-effect transistor, in particular a MOSFET. As a result, a cost-effective circuit breaker can be formed.
- a circuit breaker with a positive temperature coefficient can be provided, which heats up at too high a current in the case of blocking the drive unit and experiences a higher ohmic resistance. This leads to an automatic limitation of the current until the circuit breaker cools again, wherein the thermally connected heat storage prevents excessive heating.
- a signal line is provided which signals a blocking of the drive unit, wherein the signal line in particular in response to the temperature of the heat storage device can be acted upon with a signal.
- the invention further relates to a drive arrangement for operating a wiper system of a motor vehicle with a drive unit for driving at least one wiper and connected to the drive unit power circuit for driving the drive unit, wherein the power circuit as described above can be trained and further developed.
- the power circuit as described above can be trained and further developed.
- FIG. 1 shows a schematic sectional view of a power circuit according to the invention.
- the power circuit 10 shown in Figure 1 has a circuit board 12 to which a power switch 14, for example MOSFET, is connected. Further, with the circuit board 12, a heat storage 16 is connected in the form of a copper cube.
- the heat accumulator can in this case be arranged on the same side of the printed circuit board 12, on which the power switch 14 is disposed, and / or on the side of the printed circuit board 12 facing away from the power switch 14.
- the heat accumulator 16 is arranged to the circuit breaker 14, which switches a drive unit, not shown, a wiper system of a motor vehicle, spaced and thermally connected via a heat conductor 18 and / or a conductor 20 to the circuit breaker 14.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Control Of Resistance Heating (AREA)
- Control Of Direct Current Motors (AREA)
- Power Steering Mechanism (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200880121476.3A CN101904000B (zh) | 2007-12-21 | 2008-10-27 | 功率电路 |
US12/682,689 US20100238633A1 (en) | 2007-12-21 | 2008-10-27 | Power circuit |
EP08866749A EP2225775A1 (de) | 2007-12-21 | 2008-10-27 | Leistungsschaltung |
RU2010129546/11A RU2492077C2 (ru) | 2007-12-21 | 2008-10-27 | Стеклоочиститель для автомобиля |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007062167.3 | 2007-12-21 | ||
DE102007062167A DE102007062167A1 (de) | 2007-12-21 | 2007-12-21 | Leistungsschaltung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009083293A1 true WO2009083293A1 (de) | 2009-07-09 |
Family
ID=40111113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/064535 WO2009083293A1 (de) | 2007-12-21 | 2008-10-27 | Leistungsschaltung |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100238633A1 (de) |
EP (1) | EP2225775A1 (de) |
CN (1) | CN101904000B (de) |
DE (1) | DE102007062167A1 (de) |
RU (1) | RU2492077C2 (de) |
WO (1) | WO2009083293A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9861015B2 (en) * | 2013-03-15 | 2018-01-02 | Finsix Corporation | Method and apparatus for controlling heat in power conversion systems |
AT518872B1 (de) * | 2016-07-06 | 2018-02-15 | Zkw Group Gmbh | Bestückung von thermisch hochleistungsfähigen Bauteilen zu Wärmespreizung |
JP6737221B2 (ja) | 2017-04-11 | 2020-08-05 | 株式会社デンソー | 電動パワーステアリング制御装置および電子ユニット。 |
RU2677633C1 (ru) * | 2017-12-12 | 2019-01-18 | Федеральное государственное унитарное предприятие "Научно-производственный центр автоматики и приборостроения имени академика Н.А. Пилюгина" (ФГУП "НПЦАП") | Конструкция многослойных печатных плат со встроенным теплоотводом |
RU196103U1 (ru) * | 2019-09-05 | 2020-02-17 | Акционерное общество "Концерн "Созвездие" | Теплоаккумулирующее устройство |
DE102019215523A1 (de) * | 2019-10-10 | 2021-04-15 | Vitesco Technologies GmbH | Leistungshalbleiterbauteil sowie Verfahren zur Herstellung eines Leistungshalbleiterbauteils |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020080587A1 (en) * | 2000-12-22 | 2002-06-27 | Patrizio Vinciarelli | Heat dissipation for electronic components |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2500959A1 (fr) * | 1981-02-27 | 1982-09-03 | Thomson Csf | Boitier de dispositif electronique a forte dissipation thermique |
US4663575A (en) * | 1986-02-21 | 1987-05-05 | United Technologies Automotive, Inc. | Speed control for a window wiper system |
DE4021663A1 (de) * | 1990-07-07 | 1992-01-09 | Mulfingen Elektrobau Ebm | Ansteuerschaltung mit blockierschutz-einrichtung fuer einen kollektorlosen gleichstrommotor |
US5153449A (en) * | 1990-08-28 | 1992-10-06 | Milwaukee Electric Tool Corporation | Heatsink bus for electronic switch |
US5363552A (en) * | 1993-07-23 | 1994-11-15 | Eaton Corporation | Method of heat sinking and mounting a solid-state device |
DE4326506A1 (de) * | 1993-08-06 | 1995-02-09 | Bosch Gmbh Robert | Elektrisches Gerät, insbesondere Schalt- oder Steuergerät für Kraftfahrzeuge |
DE19523010A1 (de) * | 1995-04-25 | 1996-11-07 | Duerrwaechter E Dr Doduco | Schaltungsanordnung aus einem Leistungshalbleiter und einer Ansteuerschaltung dafür |
DE29901686U1 (de) | 1999-02-01 | 1999-04-08 | Bosch Gmbh Robert | Scheibenwischerantriebsanordnung |
US6239502B1 (en) * | 1999-11-22 | 2001-05-29 | Bae Systems Controls | Phase change assisted heat sink |
US6812562B2 (en) * | 1999-12-30 | 2004-11-02 | Texas Instruments Incorporated | Method and apparatus for surface mounted power transistor with heat sink |
US6759278B2 (en) * | 2000-12-22 | 2004-07-06 | Texas Instruments Incorporated | Method for surface mounted power transistor with heat sink |
DE10259732A1 (de) * | 2002-12-19 | 2004-07-01 | Delphi Technologies, Inc., Troy | Scheibenwischersteuerung |
WO2006044757A1 (en) * | 2004-10-15 | 2006-04-27 | Trico Products Corporation Of Tennessee | Dual mode motor controller for a vehicle window wiper system |
GB2422249A (en) * | 2005-01-15 | 2006-07-19 | Robert John Morse | Power substrate |
-
2007
- 2007-12-21 DE DE102007062167A patent/DE102007062167A1/de active Pending
-
2008
- 2008-10-27 EP EP08866749A patent/EP2225775A1/de not_active Withdrawn
- 2008-10-27 CN CN200880121476.3A patent/CN101904000B/zh active Active
- 2008-10-27 RU RU2010129546/11A patent/RU2492077C2/ru not_active IP Right Cessation
- 2008-10-27 US US12/682,689 patent/US20100238633A1/en not_active Abandoned
- 2008-10-27 WO PCT/EP2008/064535 patent/WO2009083293A1/de active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020080587A1 (en) * | 2000-12-22 | 2002-06-27 | Patrizio Vinciarelli | Heat dissipation for electronic components |
Also Published As
Publication number | Publication date |
---|---|
EP2225775A1 (de) | 2010-09-08 |
RU2010129546A (ru) | 2012-02-27 |
DE102007062167A1 (de) | 2009-06-25 |
RU2492077C2 (ru) | 2013-09-10 |
CN101904000B (zh) | 2014-02-05 |
CN101904000A (zh) | 2010-12-01 |
US20100238633A1 (en) | 2010-09-23 |
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