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Best Dieter

Bio: Best Dieter is an academic researcher from ebm-papst. The author has contributed to research in topics: Stator & Flange. The author has an hindex of 7, co-authored 22 publications receiving 140 citations.

Papers
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Patent
23 May 2006
TL;DR: In this article, a stator for an electric motor, in particular for an external rotor motor, includes a laminated stator core which is provided with a stators winding and having a connecting arrangement, which is arranged on one end side in the region of an end winding of the stator winding, for the purpose of electrically connecting winding wire ends and connecting wires of a temperature monitor connected upstream of the stor winding.
Abstract: A stator for an electric motor, in particular for an external rotor motor, includes a laminated stator core which is provided with a stator winding and having a connecting arrangement, which is arranged on one end side in the region of an end winding of the stator winding, for the purpose of electrically connecting winding wire ends of the stator winding and connecting wires of a temperature monitor connected upstream of the stator winding The connecting arrangement has an insulating switching disk which covers the region of the end winding, in particular in the form of a cap The temperature monitor is held in the switching disk in an integrated manner such that, on the end-winding side, it rests between the Mater winding and the switching disk such that it is in thermally conductive bearing contact with said stator winding

25 citations

Patent
05 May 2008
TL;DR: In this article, a stator sheet stack was used for an external rotor motor with an external stator winding, and an isolated switching disk was used to cover the region of the end winding, particularly in the form of a cap.
Abstract: The invention relates to a stator (1) for an electric motor, particularly for an external rotor motor, having a stator sheet stack (2) provided with a stator winding (8) and having an interconnection arrangement (20) arranged on a face in the region of an end winding (9) of a stator winding (8) for electrically connecting winding wire ends of the stator winding (8) and connection wires (16) of a temperature controller (18) connected upstream of the stator winding (8). The interconnection arrangement (20) comprises an isolated switching disk (22) overlapping the region of the end winding (9), particularly in the form of a cap. The temperature controller (18) is kept integrated in the switching disk (22) such that it sits at the end winding side between the stator winding (8) and the switching disk (22) in a heat conducting contact with the stator winding (8).

24 citations

Patent
Best Dieter1
07 Feb 2006
TL;DR: In this article, a stator of an electric motor is represented by a laminated stator core, which is provided with electrical insulation (8) composed of plastic, and the stator bushing (3) is composed of metal.
Abstract: The invention relates to a stator of an electric motor, comprising a laminated stator core ( 1 ) which is provided with electrical insulation ( 8 ) composed of plastic, and a stator bushing ( 3 ) which can be pressed into a central axial opening ( 2 ) in the laminated stator core ( 1 ), forms a bearing seat for a rotor shaft ( 10 ) and is composed of metal. In order to reduce the manufacturing complexity, with the aim at the same time to reduce the amount of noise developed and to improve the electrical insulation of the bearing seat, the invention proposes that the laminated stator core ( 1 ) and the metallic stator bushing ( 3 ) which is pressed into the laminated stator core ( 1 ) are at least partially surrounded by a extrusion coating ( 8 ), which is composed of plastic and forms the insulation ( 8 ).

20 citations

Patent
Best Dieter1, Matthias Maschke1
29 Jan 2010
TL;DR: In this paper, a stator unit for an electric motor, in particular an external rotor motor, is described, and a sealing disk is arranged between the stator and the housing flange, which is designed in such a way that direct and indirect sealing of the through-openings and/or the fastening holes is provided.
Abstract: 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.

18 citations

Patent
16 Dec 2011
TL;DR: In this article, a diffuser for a fan of axial, radial, or diagonal construction, having an inlet opening (10) and an outlet opening (20) for a gaseous medium flowing through diffuser interior (I) enclosed by an outer housing (30) in an axially directed main flow direction (S), was presented.
Abstract: The invention relates to a diffuser (3) for a fan (2) of axial, radial, or diagonal construction, having an inlet opening (10) and an outlet opening (20) for a gaseous medium flowing through a diffuser interior (I) enclosed by an outer housing (30) in an axially directed main flow direction (S) from the inlet opening (10) to the outlet opening (20), wherein the cross section (21) of the outlet opening (20) is greater than the cross section (11) of the inlet opening (10) and 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) bounding the diffuser interior (I) on the outside. In order to achieve improvement of the operating behavior with respect to efficiency and noise, according to the invention the cross section of the outer diffuser part (AD) transitions along the main flow direction (S) from a circular cross section (31) at the inlet opening (10) to a non-circular cross section (32) at the outlet opening (20).

15 citations


Cited by
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Patent
15 Dec 2011
TL;DR: In this article, a valve leakage test is performed on a valve assembly including a valve body with a first valve and a second valve, where the valves may be positioned across a fluid path in the valve body and an intermediate volume between the valves.
Abstract: This disclosure relates generally to valves, and more particularly, to gas valve assemblies. In one example, a valve leakage test may be performed on a valve assembly including a valve body with a first valve and a second valve, where the valves may be positioned across a fluid path in the valve body with an intermediate volume between the valves. A pressure sensor may be in fluid communication with the intermediate volume and may sense a measure that is related to the pressure in the intermediate volume. The pressure sensor may communicate with a controller to determine a measure that is related to a pressure change in the intermediate volume and compare the measure that is related to a pressure change to a first and/or second threshold value. The controller may output a signal if the measure meets and/or exceeds the first and/or second threshold value.

26 citations

Patent
10 Dec 2012
TL;DR: In this paper, a valve assembly may be configured to perform a valve proving test as part of an operational cycle of a combustion appliance coupled to the valve assembly, and the valve controller may then output a signal if the measure related to a pressure change rate in the intermediate volume meets and/or exceeds a threshold value.
Abstract: This disclosure relates generally to valves, and more particularly, to gas valve assemblies. In one example, a valve assembly may be configured to perform a valve proving test as part of an operational cycle of a combustion appliance coupled to the valve assembly. The valve assembly may include a valve body having a fluid path, first and second valve sealing members translatable between an opened position and a closed position, and one or more pressure sensors in fluid communication with an intermediate volume of the fluid path between the first and second valve sealing members. A valve controller may be in communication with the pressure sensor and may monitor a measure related to a pressure change rate in the intermediate volume. The valve controller may then output a signal if the measure related to a pressure change rate in the intermediate volume meets and/or exceeds a threshold value.

25 citations

Patent
15 Dec 2011
TL;DR: In this article, a valve assembly may include a valve body having an interior and an exterior, a valve or valve sealing member positioned in the valve body, a sensor element (e.g., a magnet and/or a ferrous core) secured relative to the valve sealing members and a sensor (i.e., a magnetic field sensor) positioned outside of the interior of the valve assembly.
Abstract: This disclosure relates generally to valves, and more particularly, to gas valve assemblies. In one illustrative but non-limiting example, a valve assembly may include a valve body having an interior and an exterior, a valve or valve sealing member positioned in the valve body, a sensor element (e.g., a magnet and/or a ferrous core) secured relative to the valve sealing member and a sensor (e.g., a magnetic field sensor) positioned outside of the interior of the valve body. The valve sealing member may be movable between an opened position and a closed position, and the sense element may move with the valve sealing member. The sensor may be configured to detect a position of the valve sealing member and communicate that position to a valve controller.

22 citations

Patent
10 Dec 2012
TL;DR: In this article, the authors describe a valve assembly with an inlet port, an outlet port, and a fluid path extending between the inlet and outlet ports, one or more valve actuators for selectively moving respective valves, and sensors for sensing the parameters within the fluid path and a controller secured relative to the valve body and in communication with the sensors.
Abstract: This disclosure relates generally to valves, and more particularly, to gas valve assemblies. In one example, the valve assembly may include a valve body with an inlet port, an outlet port, and a fluid path extending between the inlet and outlet ports, one or more valves situated about the fluid path, one or more valve actuators for selectively moving respective valves, one or more sensors for sensing one or more parameters within the fluid path, and a controller secured relative to the valve body and in communication with the one or more sensors for determining one or more valve assembly conditions based on the one or more sensed parameters. Illustratively, the controller may be configured to communicate information from the valve assembly to a combustion appliance controller that is located remotely from the valve assembly through a communications interface of the controller and across a communications bus.

22 citations

Patent
17 Sep 2014
TL;DR: In this article, a valve assembly may include a valve body, a valve actuator for selectively moving the actuator, one or more sensors in communication with the fluid path, a controller secured relative to the valve body and communicating with sensors, and memory operatively coupled to the controller.
Abstract: This disclosure relates generally to valves, and more particularly, to gas valve assemblies. In one illustrative but non-limiting example, a valve assembly may include a valve body, a valve situated in a fluid path of the valve body, a valve actuator for selectively moving the valve actuator, one or more sensors in communication with the fluid path, a controller secured relative to the valve body and in communication with the sensors, and memory operatively coupled to the controller. A user interface may be in communication with the memory and the controller and may be configured to receive a selection from a user for selecting one of two or more selectable options from the memory. The controller may compare sensed parameters to threshold values associated with the selected option. The user interface may have a lock on it to prevent tampering and to provide accountability.

21 citations