DE2333720A1 - Switch for reversing rectified output of A.C. generator - operates on reversal of rotation by shaft driven contacts - Google Patents

Switch for reversing rectified output of A.C. generator - operates on reversal of rotation by shaft driven contacts

Info

Publication number
DE2333720A1
DE2333720A1 DE19732333720 DE2333720A DE2333720A1 DE 2333720 A1 DE2333720 A1 DE 2333720A1 DE 19732333720 DE19732333720 DE 19732333720 DE 2333720 A DE2333720 A DE 2333720A DE 2333720 A1 DE2333720 A1 DE 2333720A1
Authority
DE
Germany
Prior art keywords
ring
generator
switch
fastened
rotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19732333720
Other languages
German (de)
Inventor
Klaus Dipl Ing Thalheim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19732333720 priority Critical patent/DE2333720A1/en
Publication of DE2333720A1 publication Critical patent/DE2333720A1/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/02—Details
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
    • H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
    • H02K11/05—Rectifiers associated with casings, enclosures or brackets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The switch is used in permanent magnet excited tachogenerators attached to reversing drives. A hardened steel ring is fastened to an extension of the generator casing in a manner to permit rotational movement. The ring carries contact fingers which operate in conjunction with contact springs each contact set being insulated from its support. Stops are fastened to the frame limit the travel of the ring in either direction. Means for driving the ring between these limits are provided from the shaft, which can take the form of a permanent magnet disc fastened to the shaft and separated from the ring by an air gap. The driving principle is that of the hysteresis motor. Alternatively a mechanical drive may be employed, for example through the friction in a ball race.

Description

Synchrongenerator mit Permanentntagne+.l^v.fer, Halbleitergleichrichtern und eingebautem PolamschalterSynchronous generator with permanent magnet + .l ^ v.fer, semiconductor rectifiers and built-in pole switch

Bekanntlich ist die Polarität von Synchrongeneratoren mit Permanentmagnetläufern und Halbleitergleichrichtung drehrichtungsunabhängig. Dieser Mangel konnte bisher nur durch Einbau von Umschaltern behoben werden, welche mittels Freilaufsperrtrieben bei Drehrichtungsumkehr von der Antriebskraft des Generators mit betätigt wurden.The polarity of synchronous generators with permanent magnet rotors is well known and semiconductor rectification independent of the direction of rotation. So far, this deficiency has only been resolved by installing changeover switches be remedied, which by means of freewheel locking drives Reversal of the direction of rotation were actuated by the driving force of the generator.

Abgesehen von der verhältnismäßig großen Verzögerung erfolgt die Umschaltung infolge der vielen zu bewegenden Getriebe- und Schalterteile stoßweise, also z.B. bei schwachen tachometrischen Generatoren nicht rückwirkungsfrei. Diese Nachteile entfallen, wenn in die Generatoren Vorrichtungen gemäß dieser Erfindung eingebaut werden. -Apart from the relatively long delay, the changeover takes place as a result of the large number of gear and switch parts to be moved intermittently, e.g. with weak tachometric generators, not free of retroactive effects. These disadvantages do not apply if devices according to this invention are incorporated into the generators. -

Abbildung 1, 2 und 3 lassen zwei Ausführungsbeispiele des Erfindungsgegenstandes erkennen. Die Kontaktfedern a sind isoliert am Stator des Generators b, die Gegenkontakte c isoliert an einem, die Achse d des Generators konzentrisch umgebenden, gehärteten Stahlring e befestigt. Dieser Ring ist entweder bei f verdrehbar im Stator gelagert oder beispielsweise von Kugeln g getragen, welche, wie bei Wälzlagern« auf der Generatorachse umlaufen. Im Falle des zuerst Genannten sitzt auf der Drehachse d, konzentrisch einen Luftspalt h vom Stahlring e entfernt, ein permanenter, beispielsweise Ringmagnet i. Dreht sich die Achse, dann wird jenerFigures 1, 2 and 3 show two exemplary embodiments of the subject matter of the invention recognize. The contact springs a are isolated on the stator of the generator b, the mating contacts c isolated on one, the axis d of the generator concentrically surrounding hardened steel ring e attached. This ring can either be rotated at f stored in the stator or carried, for example, by balls g, which, as in roller bearings, rotate on the generator axis. in the The case of the first mentioned sits on the axis of rotation d, concentrically an air gap h away from the steel ring e, a permanent one, for example Ring magnet i. If the axis rotates, then it becomes that

Stahlring entweder durch die Rollreibung der Kugeln oder durch die wechselnde Magnetisierung des Stahlringes (Kysterese-Effekt), jeweils bis zu einem der Anschläge j oder k mitgenommen, ohne den weiteren Lauf der Achse zu behindern. Auf diese Weise geraten die Kontaktfedern a mit den Gegenkontakten c zu sinngemäßer Berührung (vgl. Abb. k u. 5).Steel ring either by the rolling friction of the balls or by the changing magnetization of the steel ring (cysteresis effect), each carried up to one of the stops j or k without hindering the further movement of the axis. In this way, the contact springs a come into analogous contact with the mating contacts c (see Fig. K and 5).

Claims (1)

PatentanspruchClaim Synchrongenerator mit Permanentmagnetlaufer, Halbleitergleichrichtung und eingebautem Polumschalter, dadurch gekennzeichnet, daß der Polumschalter aus einem gehärteten Stahlring (e) besteht, welcher von der anlaufenden Achse (d) des Generators durch Reibung (g) oder Magnetisierung (i) mitgenommen wird, bis die Kontakte (c) die Kontaktfedern (a) berühren und diese Schaltbewegung des Stahlringes (e) an einem der Anschläge (j) oder (k) endet, ohne dadurch die weitere Drehung der Achse zu behindern.Synchronous generator with permanent magnet rotor, semiconductor rectification and built-in pole-changing switch, characterized in that the pole-changing switch consists of a hardened steel ring (s), which is carried along by the approaching axis (d) of the generator by friction (g) or magnetization (i) until the contacts (c) touch the contact springs (a) and this switching movement of the steel ring (e) ends at one of the stops (j) or (k) without hindering the further rotation of the axis. 409884/0702409884/0702 LeerseiteBlank page
DE19732333720 1973-07-03 1973-07-03 Switch for reversing rectified output of A.C. generator - operates on reversal of rotation by shaft driven contacts Pending DE2333720A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19732333720 DE2333720A1 (en) 1973-07-03 1973-07-03 Switch for reversing rectified output of A.C. generator - operates on reversal of rotation by shaft driven contacts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732333720 DE2333720A1 (en) 1973-07-03 1973-07-03 Switch for reversing rectified output of A.C. generator - operates on reversal of rotation by shaft driven contacts

Publications (1)

Publication Number Publication Date
DE2333720A1 true DE2333720A1 (en) 1975-01-23

Family

ID=5885775

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732333720 Pending DE2333720A1 (en) 1973-07-03 1973-07-03 Switch for reversing rectified output of A.C. generator - operates on reversal of rotation by shaft driven contacts

Country Status (1)

Country Link
DE (1) DE2333720A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8979836B2 (en) 2005-04-11 2015-03-17 Erbe Elektromedizin Gmbh Endoscopic surgical instrument

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8979836B2 (en) 2005-04-11 2015-03-17 Erbe Elektromedizin Gmbh Endoscopic surgical instrument
US9468486B2 (en) 2005-04-11 2016-10-18 Erbe Elektromedizin Gmbh Method for selectively elevating and separating tissue layers and surgical instrument for performing the method
US9980767B2 (en) 2005-04-11 2018-05-29 Erbe Elektromedizin Gmbh Method for selectively elevating and separating tissue layers and surgical instrument for performing the method
US10603095B2 (en) 2005-04-11 2020-03-31 Erbe Elektromedizin Gmbh Method for selectively elevating and separating tissue layers and surgical instrument for performing the method
US12029468B2 (en) 2005-04-11 2024-07-09 Erbe Elektromedizin Gmbh Method for selectively elevating and separating tissue layers and surgical instrument for performing the method

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