DRIVE WITH A COMMUTATOR MOTOR

Abstract

Drive (1) with a commutator motor (2), in particular for a roller blind or Venetian blind drive, with a motor housing (3), a bearing plate (4), brushes (5) which can be connected to a voltage source via stranded conductors (6), such that at least one stranded conductor (6) forms a direct electrical connection between a brush (5) and a connection contact (8) arranged outside the motor housing (3), wherein the connection contact is arranged on a printed circuit board (7) or formed by a conductor track of the printed circuit board (7), wherein the stranded conductor (6) is embedded in the brush (5), wherein the bearing plate (4) has a feedthrough (9) for a stranded conductor (6), which is aligned axially, diagonally or radially, wherein the feedthrough (9) extends as far as a brush shaft (17) for receiving and guiding the brush (5), wherein the brushes (5) can be mounted radially from the outside and wherein a brush pressure spring (15) is designed in the form of a leg spring.

Claims

[1] Drive (1) with a commutator motor (2), in particular for a roller blind or Venetian blind drive, with a motor housing (3), a bearing plate (4), brushes (5) which can be connected to a voltage source via stranded conductors (6), such that at least one stranded conductor (6) forms a direct electrical connection between a brush (5) and a connection contact (8) arranged outside the motor housing (3), wherein the connection contact is arranged on a printed circuit board (7) or formed by a conductor track of the printed circuit board (7), wherein the stranded conductor (6) is embedded in the brush (5), wherein the bearing plate (4) has a leadthrough (9) for a stranded conductor (6), which is aligned axially, diagonally or radially, wherein the leadthrough (9) extends as far as a brush shaft (17) for receiving and guiding the brush (5), wherein the brushes (5) can be mounted radially from the outside and wherein a brush pressure spring (15) is designed in the form of a leg spring. [2] Drive according to claim 1, characterized by that at least two brushes (5) are electrically connected directly to the circuit board (7) or a connection contact (8) on the circuit board (7) via a stranded conductor (6) each. [3] Drive according to claim 1 or 2, characterized by that the connection contact (8) is an insulation displacement contact. [4] Drive according to claim 1, 2 or 3, characterized by that the connection contact (8) has a press-in contact section which is pressed into a hole in the printed circuit board. [5] Drive according to claim 1 or 2, characterized by that at least one stranded conductor (6) is welded directly to the circuit board (7). [6] Drive according to claim 1, 2 or 5, characterized by that at least one stranded conductor (6) is contacted with the printed circuit board (7) by a crimp connection, wherein the stranded conductor is crimped with the connection contact. [7] Drive according to claim 1, 2, 3 or 4, characterized by that the connection contact is a Microquadlock connector that is crimped or welded to the stranded conductor (6). [8] Drive according to claim 1, characterized by that the bearing shield (4) consists of an electrically insulating material, in particular a plastic material. [9] Drive according to claim 1 or 8, characterized by that the feedthrough (9) is slot-like. [10] Drive according to claim 1 or 8, characterized by that the bearing plate (4) also has the function of a brush support plate. [11] Drive according to claim 1, characterized by that the passage (9) continues on the opposite side of the brush shaft (17) as a spring receiving pocket (22). [12] Drive according to at least one of claims 1 to 11, characterized by that the circuit board (7) is arranged parallel to a motor axis. [13] Drive according to claim 12, characterized bythat the brushes are aligned and guided parallel to the circuit board (7) and move parallel to the circuit board (7) when worn. [14] Drive according to at least one of claims 1 to 13, characterized by that the stranded conductor (6) is guided around an edge of the circuit board.

Images