Electric propulsion system for mobility devices

Abstract

The present invention relates to a propulsion system (1) for a mobility device comprising at least one motor (2), an electronic assembly (3), and a reduction gear (4), and not including a belt. Abstract figure: Figure 1

Claims

Claims

1. Propulsion system (1) for a mobility device comprising at least one electric motor (2), an electronic assembly (3), and a reducer (4), and not comprising a belt.

2. Propulsion system (1) according to claim 1, comprising an autonomous cooling system (5).

3. Propulsion system (1) according to one of claims 1 to 2, in which the electronic assembly (3) is an inverter (3).

4. Propulsion system (1) according to claim 3, wherein the inverter (3), the motor (2) and the reducer (4) are arranged one after the other along a longitudinal axis A.

5. Propulsion system (1) according to one of claims 2 to 4, in which the cooling system (5) is formed of a conduit running through all of the elements of the propulsion system (1) to cool them.

6. Propulsion system (1) according to one of claims 2 to 5, in which the cooling system comprises a first conduit (51) emerging from the electronic assembly and running along the motor (2) towards the reducer (4), a second cooling conduit (52) running along the reducer (4) arriving in a housing (53) comprising a heat sink (531) associated with a pump (532 and arranged at the reducer, a third conduit (54) emerging from the housing (52) and arriving in the electronic system (3).

7. Use of the propulsion system (1) according to one of claims 1 to 6 in a mobility device.

8. Mobility device using the propulsion system (1) according to one of claims 1 to 6, and comprising two or three wheels.

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