Drive unit for an electric vehicle and drive axle with a drive unit
US-2020282827-A1 · Sep 10, 2020 · US
Electric machine arrangement
US10879758B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10879758-B2 |
| Application number | US-201816185721-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 9, 2018 |
| Priority date | Dec 21, 2017 |
| Publication date | Dec 29, 2020 |
| Grant date | Dec 29, 2020 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
An electric machine arrangement, with two electric machines, each with a housing, wherein each housing has a machine space with a rotor-stator assembly and a resolver space section forming part of a resolver space that is formed between the machine spaces and is sealed off from the machine spaces. The housings are interconnected with their resolver space sections adjoining each other and complementing each other to form the resolver space. Several pressure equalizing elements are provided, and between the resolver space and at least one of the adjoining machine spaces, a pressure equalizing element is arranged, so that the pressure equalization occurs between the resolver space and the coupled machine space.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electric machine arrangement, comprising: two electric machines each with a housing, wherein each housing has a machine space with a rotor-stator assembly and a resolver space section forming part of a resolver space that is formed between the machine spaces and is sealed off from the machine spaces, wherein the housings are interconnected with their resolver space sections adjoining each other and complementing each other to form the resolver space, wherein several pressure equalizing elements are provided and associated with the machine spaces and the resolver space, wherein between the resolver space and at least one of the adjoining machine spaces, at least one of the pressure equalizing elements is arranged, so that the pressure equalization occurs between the resolver space and the coupled machine space. 2. The electric machine arrangement as claimed in claim 1 , wherein that the resolver space is coupled to both machine spaces by way a respective pressure equalizing element in each case. 3. The electric machine as claimed in claim 1 , wherein the at least one pressure equalizing element is or are arranged above a leakage water collection section provided in the resolver space. 4. The electric machine arrangement as claimed in claim 1 , wherein the two pressure equalizing elements by way of which the machine spaces can be vented are situated above a fording line, when viewed in the vertical direction of the electric machine arrangement. 5. The electric machine arrangement as claimed in claim 4 , wherein the pressure equalizing elements by way of which the machine spaces can be vented are situated at the mutually opposite end faces of the housings.
Assignees
Inventors
Classifications
- H02K9/193Primary
with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium · CPC title
- H02K5/203Primary
specially adapted for liquids, e.g. cooling jackets · CPC title
Machines with more than one rotor or stator {(machines for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts H02K51/00; permanent magnet machines with multiple rotors or stators relatively rotated for vectorially combining the excitation fields or the armature voltages H02K21/029)} · CPC title
with arrangements for protection from ingress, e.g. water or fingers · CPC title
Detecting coils · CPC title
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Frequently asked questions
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- What does patent US10879758B2 cover?
- An electric machine arrangement, with two electric machines, each with a housing, wherein each housing has a machine space with a rotor-stator assembly and a resolver space section forming part of a resolver space that is formed between the machine spaces and is sealed off from the machine spaces. The housings are interconnected with their resolver space sections adjoining each other and comple…
- Who is the assignee on this patent?
- Audi Ag
- What technology area does this patent fall under?
- Primary CPC classification H02K9/193. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 29 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).