摘要:
The invention relates to a collectorless direct-current external-rotor motor (2), which includes a stator (6) with stator windings (12) fastened to a motor flange (4), an external rotor (14) enclosing the stator (6) on its side facing away from the motor flange (4), as well as an electronic circuit arrangement (18) driving the stator windings (12). This circuit arrangement (18) has a conductor plate (24) provided with electronic components (22) arranged adjacent to the flange-side facing the stator (6), as well as several power semiconductors (28) electrically connected to the conductor plate (24), arranged in heat-conducting contact with the motor flange (4). The power semiconductors (28) are joined indirectly by an annular disk-form cooling body (40) to the motor flange (4) to provide a heat-conducting effect. The cooling body (40) forms a preassembled component with the conductor plate (24) and a carrier element (42) which support the conductor plate (24).
摘要:
An external rotor motor, especially for driving fans, including a stationary inside stator, an outside rotor, and a stator-lamination pack of the inside stator having a central bore into which there is installed, with the aid of a clamping seating, a stator bushing which is connected mechanically on one side with the motor flange carrying the external rotor motor. Inside the stator bushing, there is a turnable shaft which is fixedly secured, on the side lying opposite the motor flange, within a rotor bushing of the turnable outside rotor. The motor flange includes on the inside, a hollow cylindrical added piece with an inward-directed annular crosspiece, which abuts against the stator-lamination pack. The stator bushing, installed with the aid of a clamping seating in the central bore of the stator-lamination pack, has an outward-directed annular crosspiece which is seated against the inward-directed annular crosspiece of the cylindrical added piece of the motor flange.
摘要:
The present invention pertains to a stator for an electric motor, composed of a stator core assembly (2), stator windings (3) and, arranged at one end of the stator core assembly (2), an interconnecting arrangement (4) for the stator windings (3). An interconnecting arrangement (4) features an insulating part (9) with slotted chambers (11) in order to accept electrical connecting leads (12), insulated from each other, in order to interconnect the wire ends (7) of the stator windings (3).
摘要:
A brushless dc external-rotor motor having a hollow cylindrical heat sink fastened to the peripheral border region of a printed circuit board. Power semiconductors are arranged on an inner cylinder wall of the heat sink in a heat conducting manner, and the cylinder wall forms part of the peripheral border of the stator flange in the motor. A connector fastens Hall generator(s) on the circuit board and provides the electrical connection with the circuit board. The connector can be soldered along with all other electronic components in a joint soldering process, wherein a subassembly of a preassembled circuit board and a heat sink fastened to its periphery and carrying the power semiconductors passes through a solder bath to solder all components in a single soldering process. It is subsequently necessary only to plug the Hall generator or generators onto the connector or connectors soldered onto the circuit board. The connector can include individual contact tubes, which are soldered in the circuit board and into which the connection pins of a respective Hall generator can be plugged.
摘要:
A diffuser (3) for a fan (2) of axial, radial or diagonal type of construction, has an inlet opening (10) and having an outlet opening (20) for a gaseous medium which flows through a diffuser interior (I), which is enclosed by an outer housing (30), in an axially oriented main flow direction (S) from the inlet opening (10) to the outlet opening (20). The cross section of the diffuser interior (I) increases from the cross section (11) of the inlet opening to the cross section (21) of the outlet opening (20), wherein the outer housing (30) forms an outer diffuser part (AD) which delimits the diffuser interior (I) to the outside. Along the main flow direction (S), the cross section of the outer diffuser part (AD) changes from a circular cross section (31) at the inlet opening (10) to a non-circular cross section (32) at the outlet opening (20).
摘要:
The present invention relates to an electric motor (1) with a stator (4) with a wiring device (28) for stator windings, with control electronics (10) arranged in an electronics housing (8) and a connecting device (32), which is arranged in the region of the electronics housing (8), for external connecting lines. In this case, all of the electrical connections between the connecting device (32) and the control electronics (10) and/or between the control electronics (10) and the stator wiring device (28) are in the form of a plug-type connector (34) with a number of connecting elements.
摘要:
The present invention relates to a clamping member for pressing power components (9) against cooling surfaces of the cooling flanges (7) of a housing, particularly for receiving an electronic circuit. The clamping member comprises a housing frame (13) having at least one receiving chamber for the cooling flange (7) and the power semiconductor (9) to be contacted with the cooling flange (7), the receiving chamber being surrounded by the frame walls (14a, 14b, 15) of the housing frame. A pressure element (17) is disposed between a frame wall (14a, 14b) and the power component (9) disposed opposite thereof, or the cooling flange (7) disposed opposite thereof. A separating gap, into which an expanding element (18) can be introduced on one side non-positively and/or positively such that the power component (9) is pressed against the cooling flange (7), is provided between the pressure element (17) and the frame wall (14a, 14b).
摘要:
A housing for receiving an electronic circuit (4) having a plurality of components (5) having a carrier plate (7) and a housing cover (8) including a circumferentially enclosing wall (9) on the carrier plate (7) and a cover part (10) on the wall (9), which cover part (10) lies opposite the carrier plate (7). A volume compensation element (11) is attached on the carrier plate (7) in an interior (12) of the housing cover (8) which is enclosed in a pressure-tight manner from an external atmosphere. The volume compensation element (11) is elastically formed providing a variable volume for compensation of pressure fluctuations in the interior (12), which variable volume occurs with a change in position of the volume compensation element (11) relative to the carrier plate (7). A gap between the volume compensation element (11) and the carrier plate (7) is connected to the external atmosphere.
摘要:
A stator unit for an electric motor, in particular an external rotor motor, includes a stator with a stator laminate stack and stator windings and a stator bushing and a stator flange which is formed at one end. A housing flange of a housing for accommodating a motor controller or the like is fastened on the stator flange, and with motor connection contacts, which run from the stator through through-openings in the housing flange, and with fastening means, which run through fastening holes in the housing flange and are fastened in the stator. A sealing disk is arranged between the stator and the housing flange. The sealing disk has sealing regions made from elastic plastic, which are arranged and designed in such a way that direct and/or indirect sealing of the through-openings and/or the fastening holes is provided against the ingress of moisture.