WO2024074261A1 - Composant électrique pour un véhicule à moteur comprenant un boîtier et une structure de support - Google Patents

Composant électrique pour un véhicule à moteur comprenant un boîtier et une structure de support Download PDF

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Publication number
WO2024074261A1
WO2024074261A1 PCT/EP2023/074600 EP2023074600W WO2024074261A1 WO 2024074261 A1 WO2024074261 A1 WO 2024074261A1 EP 2023074600 W EP2023074600 W EP 2023074600W WO 2024074261 A1 WO2024074261 A1 WO 2024074261A1
Authority
WO
WIPO (PCT)
Prior art keywords
plane
housing
circuit board
electrical component
skeleton structure
Prior art date
Application number
PCT/EP2023/074600
Other languages
German (de)
English (en)
Inventor
Rangarajan Venkatapathy
Jan Becker
Original Assignee
Mercedes-Benz Group AG
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 Mercedes-Benz Group AG filed Critical Mercedes-Benz Group AG
Publication of WO2024074261A1 publication Critical patent/WO2024074261A1/fr

Links

Classifications

    • 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
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1427—Housings
    • H05K7/1432—Housings specially adapted for power drive units or power converters

Definitions

  • the invention relates to an electrical component for a motor vehicle with a housing according to the type defined in the preamble of claim 1.
  • DE 102020 007296 A1 discloses a transmission with an integrated circuit board for power electronics for an electric motor. Due to the transmission architecture, the circuit board points towards the front crash area of the vehicle in which it is installed. Therefore, in the event of a vehicle crash, i.e. an impact or collision, the circuit board can be damaged.
  • DE 11 2009 000 022 B4 shows an electrical component for a motor vehicle with a housing having a base housing and a housing cover covering an opening in the base housing, with an inverter arranged within the housing, wherein the inverter has a circuit board.
  • DE 102017202 070 A1 shows an electrical component for a motor vehicle, wherein electronic components are arranged within a housing, wherein an elastic layer is introduced between the housing and the electronic components. It is the object of the present invention to provide an electrical component in which the sensitive parts of the electrical component in particular are effectively protected with relatively little effort.
  • the invention relates to an electrical component for a motor vehicle with a housing that has a base housing and a housing cover, wherein the housing cover covers an opening in the base housing.
  • the electrical component also has an inverter that is arranged within the housing, wherein the inverter has a circuit board that extends substantially parallel to a first plane.
  • the core of the electrical component according to the invention is formed by a protective structure having a skeleton structure that is arranged between the circuit board and the housing cover.
  • a skeleton structure protects the electronic components against point forces.
  • point forces that act on the housing cover in the event of a crash can be diverted laterally sufficiently well to avoid damage to the circuit board.
  • the invention provides that the circuit board is fixed to a carrier plate, wherein the circuit board is arranged between the carrier plate and the housing cover with respect to the spatial direction that is perpendicular to the first plane. Since the skeleton structure is preferably also arranged between the circuit board and the housing cover, the circuit board with the electronic elements can be protected. Furthermore, the invention provides that the protective structure has at least one first support element that is directly connected to the skeleton structure.
  • the first support element can in particular be designed as one piece with the skeleton structure. Furthermore, it can be supported directly or indirectly on the housing. The first support element can be used to divert forces originating from the skeleton structure in a targeted manner in a specific direction.
  • the invention provides that at least one first fastening means is included for fastening the carrier plate to the housing, wherein the at least one first support element extends from the skeleton structure to the at least one first fastening means.
  • the first fastening means can in particular be fixed to the housing cover.
  • the carrier plate can also initially be fixed to the housing cover and mounted together with the cover to the base housing.
  • the invention further provides at least one second fastening means by means of which the circuit board is fastened to the carrier plate, wherein the protective structure has at least one second support element which is directly connected to the skeleton structure and extends from the skeleton structure to the at least one second fastening means.
  • the board extends in the two spatial directions through which the first level is spanned.
  • At least a part of the housing cover can extend substantially parallel to the first plane.
  • the circuit board is therefore advantageously aligned substantially parallel to the housing cover.
  • the skeleton structure extends essentially along a second plane, wherein the second plane is arranged parallel to the first plane.
  • the second plane is preferably arranged between the first plane and the said part of the housing cover.
  • the skeleton structure is thus advantageously aligned essentially parallel to the circuit board and parallel to the said part of the housing cover.
  • a high-voltage component is arranged on the circuit board and on a side of the circuit board facing the housing cover.
  • the high-voltage component is an electronic element that must be protected from impact or destruction in the event of a crash.
  • an overall arrangement of the electrical component is designed such that the high-voltage component is arranged between the circuit board and the skeleton structure with respect to a spatial direction that is perpendicular to the first plane.
  • the carrier plate extends essentially along a third plane, wherein the third plane is arranged parallel to the first plane.
  • the third plane can therefore also be aligned parallel to the plane in which the housing cover is arranged.
  • the carrier plate, the circuit board, the high-voltage component, the skeleton structure and the housing cover prefferably be arranged one after the other in the order mentioned.
  • the first support element extends from the skeleton structure towards the carrier plate.
  • the protective structure advantageously has a plurality of first support elements.
  • the high-voltage component is particularly advantageously arranged between at least two of the first support elements.
  • a plane that is arranged parallel to the first plane and that intersects the high-voltage component also advantageously intersects the at least two first support elements.
  • the above-mentioned at least two first support elements and at least two first fastening means are included.
  • one of the two first support elements extends to one of the two first fastening means.
  • the high-voltage component is arranged between the two first fastening means, so that the high-voltage component does not cover the two first fastening means. That the high-voltage component covers the two said first fastening means is not covered means that there is no straight line which is arranged perpendicular to the first plane and which intersects both the high-voltage component and one of the two first fastening means.
  • a further advantageous embodiment can provide that the at least one first support element is arranged substantially perpendicular to the first plane. This allows the force to be transmitted particularly well to the support structure.
  • the electrical component preferably has a plurality of second fastening means.
  • the circuit board does not carry any electronic component in the region of the second fastening means, i.e. the circuit board surface is accessible, i.e. no electronic component is arranged such that it covers one of the second fastening elements, i.e. there is no straight line that is arranged perpendicular to the first plane and that intersects both an electronic component and one of the second fastening elements.
  • the second support element does not press directly onto the circuit board, but is supported directly on the carrier plate via the second fastening means. This can also prevent damage to the circuit board.
  • the electrical component advantageously comprises both first fastening means and first support elements as well as second fastening means and second support elements. However, it is also possible to use only first fastening means combined with first support elements or only second fastening means combined with second support elements.
  • the housing cover has a metal sheet, wherein the metal sheet is arranged at least in regions essentially parallel to the first plane and overlapping or covering the skeleton structure.
  • the metal sheet is preferably arranged on an inner side of the housing cover.
  • the metal sheet is preferably aligned between the skeleton structure and a plastic shell of the housing cover. It can therefore contact the skeleton structure and serve to transfer the forces from the cover to the skeleton structure.
  • Fig. 1 shows a possible embodiment of the electrical component in a side view
  • Fig. 2 shows a possible embodiment of the electrical component in a front view
  • FIG. 3 is an enlargement of the illustration in Figure 1.
  • a possible embodiment of the electrical component 1 is shown schematically in a side view, with Fig. 3 showing an enlarged view of a portion of the illustration in Fig. 1.
  • This has a housing 2 with a base housing 3 and a base housing cover or housing cover 4.
  • An inverter 5 with a circuit board 6 is arranged inside the housing 2.
  • Electronic elements in the form of a high-voltage component 17 are located on the circuit board 6.
  • a control unit 18 therefore comprises, for example, the circuit board 6 in the oil and additionally a cover on the front of the vehicle, whereby the control unit 18 does not have its own housing.
  • a protective structure 8 is arranged between the circuit board 6 and the housing cover 4.
  • the protective structure 8 is designed as a skeleton structure 9, for example shown in Fig. 2.
  • a gear set 20 and an electric motor with an AC connection 21 are provided inside the housing 2.
  • a recess 19 for a steering system can optionally be provided on the underside of the housing.
  • the illustration shows a side view and not a cross-section, since not all components are shown in this plane.
  • the skeleton structure has rod-shaped webs 25 and nodes 26, wherein a part of the webs 25 are connected to one another at the nodes 26.
  • the possible embodiment of the electrical component 1 shown from the side in Fig. 1 is shown schematically in a view from the front in Fig. 2.
  • the same components are provided with the same reference numerals so that they can be referred to in detail need not be discussed further.
  • the protective structure 8 can be seen with the skeleton structure 9 as well as with the first support elements 13 and with the second support elements 16.
  • the skeleton structure 9 is advantageously firmly connected to the first support elements 13 and firmly connected to the second support elements 16.
  • the first support elements 13 and also the second support elements 16 extend from the skeleton structure 9 in the direction of the circuit board 6.
  • the support elements 13, 16 advantageously extend in a direction that is arranged perpendicular to a first plane 7.
  • At least one of the first support elements 13 and at least one of the second support elements 16 extends from one of the nodes 26 of the skeleton structure 9.
  • all nodes 26 of the skeleton structure 9 are arranged such that they are combined with or in contact with one of the support elements 13, 16.
  • the skeletal structure particularly advantageously extends essentially in two spatial directions and is advantageously aligned parallel to the first plane 7.
  • First fastening means 14 are designed to fasten a carrier plate 11 to the housing 2.
  • Second fastening means 15 are designed to fasten the circuit board 6 to the carrier plate 11.
  • the circuit board 6 is fixed to the carrier plate 11, wherein the circuit board 6 is arranged between the carrier plate 11 and the housing cover 4.
  • An AC connection 21 of the inverter 5 to an electric motor 22 can be seen on the carrier plate 11.
  • a differential gear 23 is shown schematically in Fig. 2.
  • Fig. 3 shows a detail from Fig. 1, wherein the protective structure 8 with the skeleton structure 9 is shown enlarged. It can be seen that the housing cover 4 extends essentially parallel to the first plane 7.
  • the housing cover 4 also has a metal sheet 4'.
  • the metal sheet 4' can form a particularly advantageous protective structure 8 in combination with the skeleton structure 9 in order to prevent damage to the carrier plate 11 or the inverter 5, and for example an inverter cooling plate 5'.
  • the metal sheet 4' is advantageously arranged between a plastic shell 4" of the housing cover 4 and the skeleton structure 9.
  • the skeleton structure 9 is essentially aligned along a second plane 10, wherein the second plane 10 is arranged parallel to the first plane 7. Particularly advantageously, at least some of the rod-shaped webs of the skeleton structure are arranged in the second plane.
  • the carrier plate 11 is arranged essentially along a third plane 12, wherein the third plane 12 is arranged parallel to the first plane 7.
  • the carrier plate 11 extends essentially in two spatial directions of the carrier plate 11, wherein these two spatial directions of the carrier plate 11 span the third plane.
  • the high-voltage component 17 is arranged between two first support elements 13.
  • the high-voltage component is arranged between two second support elements 16. Forces that act on the skeleton structure 9 from the direction of the housing cover 4 can thus be diverted past the high-voltage component 17 via the first support elements 13 to the first fastening means 14 and via the second support elements 16 to the second fastening means 15.
  • the high-voltage component 17 can be effectively prevented from being damaged.
  • the protection of the high-voltage component 17 is nevertheless achieved with relatively little effort, since the special, inexpensively manufactured protective structure 8 is used in conjunction with the first fastening means 14 and/or second fastening means 15 that are required anyway and interacts with them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)

Abstract

L'invention concerne un composant électrique (1) pour un véhicule à moteur comprenant un boîtier (2) qui présente un boîtier principal (3) et un couvercle de boîtier (4) qui recouvre une ouverture dans le boîtier principal, et un onduleur (5) qui est placé à l'intérieur du boîtier (2), l'onduleur (5) ayant une carte de circuit imprimé (6) s'étendant sensiblement parallèlement à un premier plan (7). L'invention est caractérisée en ce qu'elle comprend une structure de protection (8) présentant une structure de squelette (9) qui est placée entre la carte de circuit imprimé (6) et le couvercle de boîtier (4).
PCT/EP2023/074600 2022-10-04 2023-09-07 Composant électrique pour un véhicule à moteur comprenant un boîtier et une structure de support WO2024074261A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022003652.5 2022-10-04
DE102022003652.5A DE102022003652A1 (de) 2022-10-04 2022-10-04 Elektrische Komponente für ein Kraftfahrzeug mit einem Gehäuse und einer Stützstruktur

Publications (1)

Publication Number Publication Date
WO2024074261A1 true WO2024074261A1 (fr) 2024-04-11

Family

ID=87974554

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/074600 WO2024074261A1 (fr) 2022-10-04 2023-09-07 Composant électrique pour un véhicule à moteur comprenant un boîtier et une structure de support

Country Status (2)

Country Link
DE (1) DE102022003652A1 (fr)
WO (1) WO2024074261A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017202070A1 (de) 2016-02-18 2017-08-24 Magna Closures Inc. Umhausungsanordnung für eine elektronische Steuereinheit mit einem übergossenen Teil, um elektronische Komponenten zu schützen.
DE112009000022B4 (de) 2008-02-20 2017-09-07 Aisin Aw Co., Ltd. Hybridantriebseinheit
DE102019131818A1 (de) 2019-11-25 2021-05-27 Audi Ag Batteriegehäuse für eine Batterie, Batterie mit einem Batteriegehäuse sowie Verfahren zum Herstellen einer Batterie
DE102020105554A1 (de) * 2020-03-02 2021-09-02 Bayerische Motoren Werke Aktiengesellschaft Zumindest sechsphasiger Inverter, elektrische Antriebseinheit sowie Kraftfahrzeug
EP4001701A1 (fr) * 2020-11-23 2022-05-25 Ningbo Geely Automobile Research & Development Co. Ltd. Boîtier de transmission composite
DE102020007296A1 (de) 2020-11-30 2022-06-02 Daimler Ag Hybridgetriebe für ein Fahrzeug

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112009000022B4 (de) 2008-02-20 2017-09-07 Aisin Aw Co., Ltd. Hybridantriebseinheit
DE102017202070A1 (de) 2016-02-18 2017-08-24 Magna Closures Inc. Umhausungsanordnung für eine elektronische Steuereinheit mit einem übergossenen Teil, um elektronische Komponenten zu schützen.
DE102019131818A1 (de) 2019-11-25 2021-05-27 Audi Ag Batteriegehäuse für eine Batterie, Batterie mit einem Batteriegehäuse sowie Verfahren zum Herstellen einer Batterie
DE102020105554A1 (de) * 2020-03-02 2021-09-02 Bayerische Motoren Werke Aktiengesellschaft Zumindest sechsphasiger Inverter, elektrische Antriebseinheit sowie Kraftfahrzeug
EP4001701A1 (fr) * 2020-11-23 2022-05-25 Ningbo Geely Automobile Research & Development Co. Ltd. Boîtier de transmission composite
DE102020007296A1 (de) 2020-11-30 2022-06-02 Daimler Ag Hybridgetriebe für ein Fahrzeug

Also Published As

Publication number Publication date
DE102022003652A1 (de) 2024-04-04

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