EP4188751A1 - Power module for a vehicle - Google Patents
Power module for a vehicleInfo
- Publication number
- EP4188751A1 EP4188751A1 EP21749585.2A EP21749585A EP4188751A1 EP 4188751 A1 EP4188751 A1 EP 4188751A1 EP 21749585 A EP21749585 A EP 21749585A EP 4188751 A1 EP4188751 A1 EP 4188751A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- power
- contact
- power module
- signal
- contacts
- 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- Withdrawn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
- 239000004065 semiconductor Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 description 5
- 239000000969 carrier Substances 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0238—Electrical distribution centers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0239—Electronic boxes
-
- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
Definitions
- the invention is based on a power module for a vehicle according to the preamble of independent patent claim 1.
- a circuit unit with a printed circuit board which is equipped with at least one electronic component.
- the circuit unit which has the printed circuit board with at least one component on a first surface, is modified such that the printed circuit board of the circuit unit is provided with at least one busbar on the second surface facing away from the first surface having electronic components .
- this busbar is attached to the second surface of the printed circuit board with the aid of at least one attachment means and is used for power transmission and heat dissipation.
- DE 10 2006 000 958 A1 discloses a generic power module for a vehicle, in particular a power distributor, with a circuit carrier and at least one contact element for supplying power.
- the power module consists of two circuit carriers that are arranged inside a housing.
- the circuit carriers can be designed, for example, as printed circuit boards, ceramic substrates or stamped metal parts.
- the connection of the circuit carriers to one another and the electrical connection of a circuit carrier to external connections is carried out exclusively using press-in technology.
- press-in pins and, on the other hand, blade contacts are provided.
- the press-in pins are designed as preferably cylindrical metal pins, which have a press-in zone formed on each of their axial end sections, each of which fits into a recess of a press-in zone a signal contact of the circuit carrier can be pressed in, so that a signal connection is formed between the two circuit carriers.
- several blade contacts are arranged relative to one another in such a way that a busbar can be inserted into their blade receptacles.
- the busbars inserted into the knife holders are formed by stamped sheet metal strips. A section protruding laterally from the metal strips protrudes through a housing wall and forms a flat plug as a power contact in one piece with the respective busbar.
- the power module for a vehicle with the features of independent claim 1 has the advantage that at least one power contact can also be used as a signal contact at the same time. As a result, additional space for the signal contact can be saved, since the space available anyway for the power contact is also used for the signal contact. In addition, the integration of the signal contact in the power contact results in a very short distance for the signal pick-up at the power contact, which means that the signal quality of the picked-off signal is very high.
- Embodiments of the present invention provide a power module for a vehicle having a housing, multiple power contacts, and multiple signal contacts.
- a signal contact is additionally integrated in at least one power contact.
- the power module can be understood to mean an electrical assembly which comprises at least one power semiconductor and can be designed, for example, as a B2 bridge or as a B6 bridge.
- control devices or electrical consumers such as electric motors
- Three-phase brushless DC motors are usually controlled by the power module, which is preferably designed as a B6 inverter based on silicon or silicon carbide power semiconductors, preferably with field-oriented control.
- a bridge driver is used in addition to the actual power semiconductor switches, which switches the power semiconductor switches on and off.
- the power contacts of the power module can be designed as a phase connection or as a supply connection, for example.
- the signal contacts can each have a press-in zone with a receptacle into which a press-in pin can be pressed.
- the press-in pins are designed, for example, as cylindrical metal pins, each of which has a molded press-in area on at least one axial end section, the dimensions of which are adapted to the recess in the press-in zone of the signal contact, so that the press-in area of the press-in pin can be pressed into the recess in the press-in zone of the signal contact .
- the signal contacts can each have a contact surface to which a contact pin can be soldered or welded.
- a physical variable can be detected on the integrated signal contact, which represents a current flow through the corresponding power contact.
- a voltage can be recorded at the power contact via a press-in pin pressed into the integrated signal contact and the current flow through the power contact can be calculated from the recorded voltage.
- the at least one signal contact can be integrated into a power contact designed as a phase connection.
- the current flow of current at the phase connection can be determined and supplied as an actual value to a control device for controlling the phase current.
- at least one signal contact group can be formed on the edge of the housing, which comprises a plurality of signal contacts that can be contacted at the same time.
- the signal contacts of the at least one signal contact group can be aligned.
- the simultaneous contacting can be easily implemented by a plug-like contacting device which comprises a plurality of press-in pins, the number of press-in pins corresponding to the number of signal contacts in the signal contact group.
- the signal contact integrated into the power contact can be part of the at least one signal contact group. This means that the integrated signal contact can be aligned with the other signal contacts of the signal contact assembly.
- FIG. 1 shows a schematic top view of an exemplary embodiment of a power module according to the invention for a vehicle.
- Fig. 2 shows a schematic perspective representation of a detail DH from Fig. 1.
- the illustrated exemplary embodiment of a power module 10 for a vehicle comprises a housing 16, a plurality of power contacts 12 and a plurality of signal contacts 14, 14A.
- a signal contact 14A is additionally integrated in at least one power contact 12 .
- the power module 10 has seven power contacts 12 and twenty-eight signal contacts 14, 14 in the exemplary embodiment shown.
- three power contacts 12 are each designed as phase connections 12A, in each of which a signal contact 14A is integrated.
- Two power contacts 12 are embodied as first supply connections 12B, at which a negative supply voltage is present, for example.
- Two power contacts 12 are embodied as second supply connections 12C, at which a positive supply voltage is present, for example.
- the signal contacts 14, 14A each have a press-in zone 14.1 with a receptacle 14.2, into which a press-in pin 18 can be pressed, as can be seen from FIG.
- the signal contacts each have a contact surface to which a contact pin can be soldered or welded.
- a physical variable which represents a current flow through the corresponding power contact 12, is recorded at each of the signal contacts 14A integrated into the phase connections 12A.
- current flows of current through the power contacts 12 designed as phase connections 12A can be detected and used for current regulation of the individual phase currents at the three phase connections 12A.
- a plurality of signal contact groups 15, 15A are formed on the edge of the housing 16, which comprise a plurality of signal contacts 14, 14A that can be contacted at the same time.
- the signal contacts 14, 14A of the signal contact groups 15, 15A are arranged in alignment in the illustrated embodiment.
- three signal contact groups 15A are formed on the upper edge of the housing 16 of the power module 10, which include a signal contact 14A integrated into a power contact 12 and three signal contacts 14 which are not integrated into a power contact 12 .
- the individual signal contacts 14, 14A of such a signal contact group 15A can be contacted simultaneously by four press-in pins 18.
- these four press-in contacts 18 are integrated into a contacting device 20, which is designed here as a spacer 20A.
- a printed circuit board, not shown, can then be placed on contacting device 20 designed as spacer 20A, for example, which has corresponding signal contacts 14 with press-in zones 14.1 and recesses 14.2, into which press-in pins 18, not shown, of contacting device 20 can be pressed.
- a signal contact group 15 is formed on the lower edge of the power module 10, which includes twelve signal contacts 14 with press-in zones 14.1 and recesses 14.2, which are not integrated into a power contact 12.
- two individual signal contacts 14 with press-in zones 14.1 and recesses 14.2 are arranged on the left and right edges of the power module 10, which are not integrated into a power contact 12 and can be contacted individually.
- the power module 10 is designed as a B6 bridge, so that corresponding power semiconductors are arranged in the housing 16 of the power module 10 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020209755 | 2020-08-03 | ||
DE102021205900.7A DE102021205900A1 (en) | 2020-08-03 | 2021-06-10 | Power module for a vehicle |
PCT/EP2021/070805 WO2022028933A1 (en) | 2020-08-03 | 2021-07-26 | Power module for a vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4188751A1 true EP4188751A1 (en) | 2023-06-07 |
Family
ID=86184873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21749585.2A Withdrawn EP4188751A1 (en) | 2020-08-03 | 2021-07-26 | Power module for a vehicle |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP4188751A1 (en) |
-
2021
- 2021-07-26 EP EP21749585.2A patent/EP4188751A1/en not_active Withdrawn
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Legal Events
Date | Code | Title | Description |
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STAA | Information on the status of an ep patent application or granted ep patent |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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STAA | Information on the status of an ep patent application or granted ep patent |
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17P | Request for examination filed |
Effective date: 20230303 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
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 |
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18D | Application deemed to be withdrawn |
Effective date: 20230926 |