Actuator assembly for a vehicle brake and method for manufacturing an actuator assembly for a vehicle brake

Patent metadata

Field	Value
Publication number	US-2023151861-A1
Application number	US-202217987003-A
Country	US
Kind code	A1
Filing date	Nov 15, 2022
Priority date	Nov 17, 2021
Publication date	May 18, 2023
Grant date	—

Abstract

An actuator assembly for a vehicle brake is described, which comprises a control assembly, which can be installed as a separate sub-unit and has a partition panel and a circuit board fastened to said partition panel. The actuator assembly furthermore has a drive assembly (14), which can be installed as a separate sub-unit and which comprises a carrier assembly on which an electric motor, a spindle drive and a gear unit are mounted, which gear unit drivingly couples the electric motor and the spindle drive. The control assembly and the drive assembly are arranged in a common housing. A method for manufacturing an actuator assembly for a vehicle brake is furthermore presented.

First claim

1 . An actuator assembly for a vehicle brake, comprising:
a control assembly, which can be installed as a separate sub-unit and which comprises a partition panel and a circuit board which is fastened to said partition panel, and having a drive assembly, which can be installed as a separate sub-unit and which comprises a carrier assembly on which an electric motor, a spindle drive and a gear unit are mounted, which gear unit drivingly couples the electric motor and the spindle drive, wherein a driven shaft of the electric motor is aligned substantially perpendicularly to the partition panel and to the circuit board; wherein the control assembly and the drive assembly are arranged in a common housing.

2 . The actuator assembly according to claim 1 , wherein the housing is manufactured from plastic material, at least in part.

3 . The actuator assembly according to claim 1 , wherein the housing comprises a substantially shell-shaped housing base part and a housing cover which closes the housing base part.

4 . The actuator assembly according to claim 1 , wherein a positioning and fastening arrangement for the circuit board is provided on the partition panel.

5 . The actuator assembly according to claim 1 , wherein retaining ribs for a lubricating medium are arranged on a side of the partition panel which faces the drive assembly.

6 . The actuator assembly according to claim 1 , wherein a plug-connector half is integrally provided on the housing, wherein the plug-connector half is electrically connected to the circuit board via at least a first electric line.

7 . The actuator assembly according to claim 6 , wherein the first electric line is integrated in the housing, at least in part, wherein a portion of the first electric line which is on a circuit board-side extends substantially parallel to the driven shaft of the electric motor.

8 . The actuator assembly according to claim 1 , wherein the electric motor and the circuit board are electrically connected via a second electric line, wherein the second electric line extends substantially parallel to the driven shaft of the electric motor.

9 . The actuator assembly according to claim 1 , wherein the partition panel and the circuit board are connected via a potting material, at least in part.

10 . The actuator assembly according to claim 1 , wherein the control assembly comprises a speed regulating unit for regulating a speed of the electric motor and/or a current measuring unit for measuring a current received by the electric motor and/or a power supply unit for supplying the electric motor with electric energy and/or a temperature measuring unit for measuring a temperature within the actuator assembly and/or a force measuring unit for measuring a brake actuating force provided by the actuator assembly and/or a rotational position detection unit for detecting a rotational position of the electric motor and/or an actuating unit for a locking assembly for blocking the driven shaft of the electric motor against rotation.

11 . The actuator assembly according to claim 1 , wherein a magnet is arranged on an end of the driven shaft of the electric motor which faces the control assembly, and a sensor, which is associated with the magnet, is positioned on the circuit board such that it is substantially opposite the end of the driven shaft.

12 . A method for manufacturing an actuator assembly for a vehicle brake, comprising the following steps:
a) providing a substantially shell-shaped housing base part, b) inserting a drive assembly into the housing base part, which drive assembly comprises a carrier assembly on which an electric motor, a spindle drive and a gear unites are mounted, which gear unit drivingly couples the electric motor and the spindle drive, c) inserting a control assembly into the housing base part, which control assembly comprises a partition panel and a circuit board fastened to said partition panel, wherein the insertion results in an electrical connection of at least the electric motor and the circuit board, and d) closing the housing base part with a housing cover.

13 . The method according to claim 12 , wherein a plug-connector half is integrally provided on the housing and the plug-connector half is electrically connected to the circuit board as a result of inserting the control assembly into the housing base part.

14 . The method according to claim 12 , wherein the circuit board is electrically connected to the electric motor and/or the plug-connector half by forming an electrical press connection or an electrical insulation displacement connection.

15 . The actuator assembly according to claim 3 , wherein retaining ribs for a lubricating medium are arranged on a side of the partition panel which faces the drive assembly.

16 . The actuator assembly according to claim 7 , wherein the electric motor and the circuit board are electrically connected via a second electric line, wherein the second electric line extends substantially parallel to the driven shaft of the electric motor.

17 . The actuator assembly according to claim 1 , wherein the partition panel and the circuit board are connected via a potting material, at least in part.

18 . The actuator assembly according to claim 1 , wherein the control assembly comprises a speed regulating unit for regulating a speed of the electric motor and/or a current measuring unit for measuring a current received by the electric motor and/or a power supply unit for supplying the electric motor with electric energy and/or a temperature measuring unit for measuring a temperature within the actuator assembly and/or a force measuring unit for measuring a brake actuating force provided by the actuator assembly and/or a rotational position detection unit for detecting a rotational position of the electric motor and/or an actuating unit for a locking assembly for blocking the driven shaft of the electric motor against rotation.

19 . The actuator assembly according to claim 18 , wherein a magnet is arranged on an end of the driven shaft of the electric motor which faces the control assembly, and a sensor, which is associated with the magnet, is positioned on the circuit board such that it is substantially opposite the end of the driven shaft.

20 . The method according to claim 13 , wherein the circuit board is electrically connected to the electric motor and/or the plug-connector half by forming an electrical press connection or an electrical insulation displacement connection.

Assignees

• Zf Active Safety Gmbh

Inventors

• Knop Volker
• Alford Nicholas
• Seibert Werner
• Beuerle Christoph
• Mallmann Markus

Classifications

• F16D65/18 Primary

  adapted for drawing members together {, e.g. for disc brakes} · CPC title

• F16D2121/24

  using motors · CPC title

• B60T13/746

  and mechanical transmission of the braking action · CPC title

• B60T13/741

  acting on an ultimate actuator · CPC title

• B60T13/74 Primary

  with electrical assistance or drive · CPC title