EP1726077A1 - Elektronisches gerät, insbesondere elektrische maschine mit integrierter leistungselektronik - Google Patents
Elektronisches gerät, insbesondere elektrische maschine mit integrierter leistungselektronikInfo
- Publication number
- EP1726077A1 EP1726077A1 EP05733303A EP05733303A EP1726077A1 EP 1726077 A1 EP1726077 A1 EP 1726077A1 EP 05733303 A EP05733303 A EP 05733303A EP 05733303 A EP05733303 A EP 05733303A EP 1726077 A1 EP1726077 A1 EP 1726077A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrically conductive
- electronic device
- conductive layer
- electronic
- winding
- 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- Withdrawn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
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
- 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
Definitions
- Electronic device in particular electrical machine with integrated power electronics
- the invention relates to an electronic device, in particular an electrical machine with integrated power electronics, according to the preamble of claim 1.
- An electronic device is known from prior public use.
- an assembly of electronic components is connected via electrically conductive connections to windings of an electrical machine emerging from a winding head.
- the electronic assembly is separated from the windings as far as possible in order to avoid thermal stress on the electronic components from the waste heat of the electrical machine, in particular the windings.
- rails or cables are used, which are fastened to one another by clamps or soldering tags.
- Such electronic devices have the disadvantage that due to the spatial separation of the electrical machine and the electronic assembly, a compact structure of the electronic device is not possible.
- the structure is complex and expensive due to the necessary rails or cables and the terminals.
- the rails or cables also cause EMC problems, so that complex and expensive shielding of signal lines is necessary.
- the mechatronic integration is becoming increasingly important.
- the mechatronic integration of electronic assemblies in electrical machines leads to a direct arrangement of the electronic assembly on the electrical machine.
- the drastic reduction in the spatial distance between the electronic assembly and the electrical machine leads to a very compact structure and significant cost savings as a result of the elimination of plug-in and connecting elements, housing parts and components for electromagnetic filtering.
- the latter is possible because radiating line connections run largely within a metallic and thus electromagnetically closed structure and thus the EMC behavior of the electronic device is significantly improved.
- a central problem of mechatronic integration is the incompatible working temperature range of electronic assemblies and electrical machines. While electrical machines, especially their windings, can reach operating temperatures of 250 ° C and more, the thermal limit for electronic assemblies is reached at ambient temperatures of 125 ° C, in exceptional cases at 150 or 175 ° C.
- the object of the invention is to design a simple and reliable contacting of windings in such a way that thermal decoupling of the winding from the temperature-sensitive electronic assembly is ensured with the smallest possible installation space and thus harmful heat input from the windings to the electronic assembly is avoided ,
- the temperature of the first electrically conductive layer is only slightly above the temperature of the cooling element, which, for. B. can be 85 to 125 ° C.
- the first electrically conductive layer is thus thermally decoupled from the electrical machine, so that conventional connection technologies, such as preferably soft soldering, and commercially available sensors can be used for the electronic assembly.
- the present invention can also be used for a similar task in electromagnetic actuators, such as, for example, solenoids or valve drives, and also for transformer windings which are subjected to extremely high loads.
- the cooling element comprises a heat-conducting and electrically insulating substrate and a cooling component
- the cooling component can be both electrically conductive and non-electrically conductive.
- the substrate can be, for example, a DCB ceramic (direct copper bonding).
- the substrate can easily be connected to the cooling component via the metallic layer.
- the substrate has a high thermal conductivity and preferably consists of an aluminum oxide or aluminum nitride ceramic.
- the DCB ceramic is not an additional component, but rather the support of the electronic components that is necessary anyway.
- the electronic component according to claim 6 is a commercially available power electronic component, sensor and electronic circuit.
- the embodiment according to claim 7 enables the use of commercially available current sensors due to the low thermal load.
- copper is very well suited as a material with its properties. Furthermore, it is provided in the embodiment according to claim 9 that the cooling element is the already existing housing of an electrical machine.
- a water cooling system according to claim 10 leads to a particularly effective thermal decoupling.
- any type of tabs, brackets or conductor pieces which are in contact with the winding via solder, screw, spot weld or crimp connections, can serve as connecting pieces for simple connection.
- FIG. 2 schematically shows a section of the electronic device according to FIG. 1,
- Fig. 3 is a perspective view of the electronic device of FIG. 1, and
- FIG. 4 shows a perspective illustration of a further exemplary embodiment of the electronic device according to FIG. 1 with water cooling and a separate connecting piece.
- FIG. 1 shows a circuit arrangement of an electronic device 1 with three windings 2 connected in a triangle, which are connected via winding wires 3 are each connected to a first electrically conductive layer 4.
- an electrically conductive connection 5 to an electronic assembly 6 is attached.
- the electronic assembly 6 comprises six power electronic components 7, which are arranged in the form of a six-pulse bridge circuit.
- a current sensor 8 is connected in each case to the electrically conductive connections 5 between the electrically conductive layers 4 and the electronic assembly 6 (cf. FIG. 3).
- FIG. 2 shows a section of the electronic device 1 according to FIG. 1.
- the winding wire 3 emerging from a winding head 9 is connected to the first electrically conductive layer 4 via a contact point 10.
- the first electrically conductive layer 4 is attached to a surface on a first side of a heat-conducting and electrically insulating substrate 11.
- the substrate 11 is in turn connected to a cooling component 13 via a metallic layer 12 on an opposite second side.
- FIG. 3 shows a perspective view of the electronic device 1 according to FIG. 1.
- the heat-conducting and electrically insulating substrate 11 is attached to the cooling component 13 with the second side over the metallic layer 12.
- the first electrically conductive layer 4 and additionally a second electrically conductive layer 14 are applied to the first side of the substrate 11.
- the first electrically conductive layer 4 is contacted at the contact point 10 with the winding wire 3. Starting from the second electrically conductive layer 14, the contact is made via the electrically conductive connection 5 to the power electro African component 7.
- a current sensor 8 is connected in series via two electrically conductive brackets 15.
- the windings 2 of the electronic device 1 heat up during operation, so that the winding wire 3 reaches a temperature of up to 250 ° C., which does not allow direct contacting of the winding wire 3 with the electronic assembly 6 via the electrically conductive connection 5.
- the first electrically conductive layer 4 ensures thermal decoupling between the winding wire 3 and the electronic assembly 6 in that the thermal resistance between the first electrically conductive layer 4 and the cooling component 13 is small due to the highly heat-conducting and electrically insulating substrate 11 compared to the thermal resistance of the winding wire 3 between the winding head 9 and the contact point 10 with the first electrically conductive layer 4.
- the first electrically conductive layer 4 represents a thermal fixed point, the temperature of which is only slightly above the temperature of the cooling component 13. Starting from the first electrically conductive layer 4, contact is made with the power electronic component 7 or the current sensor 8 without any harmful heat being introduced into these components.
- FIG. 4 Another embodiment of an electronic device is shown in FIG. 4. Components which correspond to those which have already been discussed above in connection with FIGS. 1 to 3 have the same reference symbols and are not explained again in detail.
- FIG. 4 shows a perspective illustration of a further exemplary embodiment of the electronic device 1 according to FIG. 1 with a water cooling system and a separate connector.
- the cooling component 13 is applied directly to a water cooling system 16.
- the winding wire 3 is no longer contacted directly with the first electrically conductive layer 4, but via an electrically conductive, separate connecting piece 17 which is connected to the first electrically conductive layer 4.
- the water cooling system 16 interacts with the cooling component 13 and ensures effective dissipation of the heat of the cooling component and thus of the first electrically conductive layer 4.
- the electrically conductive, separate connecting piece 17 makes contacting of the winding wire 3 with the first electrically conductive layer 4 relieved.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004013267A DE102004013267A1 (de) | 2004-03-18 | 2004-03-18 | Elektronisches Gerät, insbesondere elektronische Maschine mit integrierter Leistungselektronik |
| PCT/DE2005/000432 WO2005091463A1 (de) | 2004-03-18 | 2005-03-10 | Elektronisches gerät, insbesondere elektrische maschine mit integrierter leistungselektronik |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1726077A1 true EP1726077A1 (de) | 2006-11-29 |
Family
ID=34964863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05733303A Withdrawn EP1726077A1 (de) | 2004-03-18 | 2005-03-10 | Elektronisches gerät, insbesondere elektrische maschine mit integrierter leistungselektronik |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1726077A1 (de) |
| DE (2) | DE102004013267A1 (de) |
| WO (1) | WO2005091463A1 (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5491370A (en) * | 1994-01-28 | 1996-02-13 | General Motors Corporation | Integrated AC machine |
| JP3346039B2 (ja) * | 1994-08-08 | 2002-11-18 | トヨタ自動車株式会社 | インバータ一体型電動機 |
| SE513419C2 (sv) * | 1996-12-20 | 2000-09-11 | Abb Ab | Anordning innefattande en elektrisk maskin med styrutrustning som har kylning |
-
2004
- 2004-03-18 DE DE102004013267A patent/DE102004013267A1/de not_active Withdrawn
-
2005
- 2005-03-10 WO PCT/DE2005/000432 patent/WO2005091463A1/de not_active Ceased
- 2005-03-10 DE DE112005000478T patent/DE112005000478D2/de not_active Ceased
- 2005-03-10 EP EP05733303A patent/EP1726077A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005091463A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004013267A1 (de) | 2005-10-13 |
| DE112005000478D2 (de) | 2006-11-16 |
| WO2005091463A1 (de) | 2005-09-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20060729 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR IT SE |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: CONTI TEMIC MICROELECTRONIC GMBH Owner name: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWAN |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RBV | Designated contracting states (corrected) |
Designated state(s): DE FR IT SE |
|
| 17Q | First examination report despatched |
Effective date: 20090129 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20131001 |