Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1999-04-19
2000-11-07
LaBalle, Clayton
Electrical generator or motor structure
Dynamoelectric
Rotary
310 68R, H02K 1100
Patent
active
061441279
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to an assembly comprising an electric motor, an intermediate housing with two outside surfaces as well as an electronic control unit.
Such an assembly is known from DE 43 20 005 A1. There, the intermediate housing forms a housing for a piston-type pump driven by the motor, with the intermediate housing in addition receiving solenoid valves. The assembly is provided for being used with a brake system. The electronic control unit controls both the motor and the solenoid valves.
The intermediate housing comprises two opposite outside surfaces so as to provide an assembly of compact structure, with the motor being fastened to one of the surfaces while the housing of the electronic control unit is attached to the other surface. Electric connection between the motor and the control unit is done by means of at least two electrical conductors passed through a bore in the intermediate housing. In accordance with the mentioned published patent application, the conductors are injected into a plastic sleeve adapted to form one piece with the end plate of the motor resting on the outside surface. Connected to the control unit is a connector and the bare ends of the electric conductors are inserted into this connector.
A different embodiment of the mentioned published patent application provides to pass a flexible cable through the opening and to insert it into the connector on the side of the control unit and to connect it with the brushes of the commutator on the side of the motor.
The disadvantage of the first embodiment is that the sleeve must feature a rigid design so as to ensure electric connection by means of the connector when the assembly is assembled.
The disadvantage of the second embodiment is that the electric motor cannot be prefabricated. Instead, it is necessary to pass the connecting line at first through the opening in the intermediate housing so as to enable it to be connected subsequently with the brushes on the mounting plate. Only then it will be possible to mount the housing of the electric motor.
It is therefore an object of this invention to ensure by simple means that the assembly can easily be mounted from prefabricated constructional units.
SUMMARY OF THE INVENTION
To this end, a motor and control unit assembly is suggested which is distinguished from the embodiment of DE 43 20 005 A1 by a channel which extends in the control unit and is in alignment with the channel in the intermediate housing, with both channels having an inside diameter which is but slightly larger than the outside diameter of the electrical conductor. This makes it possible to use a commercially available massive single-core type of line which, however, is flexible in itself and which is supported within the mentioned channels when the assembly is assembled. When the electric line is inserted into the connector, thus, a longitudinal force will be generated which is sufficient to ensure that the bared line end can be inserted into the connector without deflecting of the electric line.
Advantageously, the connector is provided within the control housing so that the electric line forms a constructional unit with the electric motor. This means that the electric motor can be pre-assembled together with the electric line. Since the construction of the electric line is flexible it is possible to bend the electric line aside during the transport of the motor.
The control unit comprises a separating wall subdividing the housing into two chambers at the minimum. One of the chambers receives the coils of the solenoid valves and its open side faces the intermediate housing. On a carrier in the other chamber which opens to the other side, there is a printed circuit board with conductive tracks whereto electronic components are soldered which form the control unit of the assembly. They are disposed on the side of the printed circuit board which is averted from the separating wall. The connector now is disposed on this very side so that it can be soldered to the printed circuit boa
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patent: 5491370 (1996-02-01), Schneider et al.
patent: 5938484 (1999-08-01), Beege et al.
Continental Teves AG & Co. OHG
LaBalle Clayton
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