DE3024665A1 - Thermal cut=out switch for electric motor - monitors stator winding temp. and fits into opening in laminations packet - Google Patents

Thermal cut=out switch for electric motor - monitors stator winding temp. and fits into opening in laminations packet

Info

Publication number
DE3024665A1
DE3024665A1 DE19803024665 DE3024665A DE3024665A1 DE 3024665 A1 DE3024665 A1 DE 3024665A1 DE 19803024665 DE19803024665 DE 19803024665 DE 3024665 A DE3024665 A DE 3024665A DE 3024665 A1 DE3024665 A1 DE 3024665A1
Authority
DE
Germany
Prior art keywords
stator winding
electric motor
thermal switch
recess
out switch
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.)
Ceased
Application number
DE19803024665
Other languages
German (de)
Inventor
Fritz Mehrmann
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.)
Hanning Elektro Werke GmbH and Co KG
Original Assignee
Hanning Elektro Werke GmbH and Co KG
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 Hanning Elektro Werke GmbH and Co KG filed Critical Hanning Elektro Werke GmbH and Co KG
Priority to DE19803024665 priority Critical patent/DE3024665A1/en
Publication of DE3024665A1 publication Critical patent/DE3024665A1/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H02K11/25—Devices for sensing temperature, or actuated thereby

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)

Abstract

The cut-out switch (4) is fitted into an opening (5) in the stator laminated packet (2) located in a region with a low magnetic flux density. The opening (5) is either in the form of a radial pocket, or in the form of a groove in the outer face of the packet (2). The cut-out switch (4) may be held in place by the impregnation material of the stator winding (1) for forming a good heat-conductive connection between the latter and the cut-out switch (4). The provision of an opening in the lamination packet for the cut-out switch simplifies mfr. of the motor, orevents damage to the windings and ensures that it remains in a fixed position relative to the stator winding.

Description

Elektromotor mit einem ThermoschalterElectric motor with a thermal switch

Die Erfindung betrifft Elektromotoren mit einem Thermoschalter, der die Betriebstemperatur der auf einem Blechpaket angeordneten Statorwicklung überwacht. Solche Thermoschalter werden bei bekannten Elektromotoren in unmittelbarer Berührung mit der Statorwicklung an dieser befestigt, was jedoch besondere Vorkehrungen erfordert, um die Wicklungsdrähte vor Beschädigungen zu schützen.The invention relates to electric motors with a thermal switch that monitors the operating temperature of the stator winding arranged on a laminated core. Such thermal switches are in direct contact with known electric motors attached to the stator winding, but this requires special precautions, to protect the winding wires from damage.

Außerdem ist das sorgfältige Einbinden der Thermoschalter in die Wicklung mit größerem Zeitaufwand verbunden. Letzteres auch deshalb, weil der Thermoschalter innerhalb der Wicklung möglichst immer dieselbe Lage einnehmen soll.In addition, the careful integration of the thermal switch into the winding associated with greater expenditure of time. The latter also because of the thermal switch should always occupy the same position within the winding.

Aufgabe der Erfindung ist es nun, die Fertigung von mit einem Thermoschalter ausgerüsteten Elektromotoren zu vereinfachen, Beschkdigungen der Wicklungsdrähte gänzlich auszuschließen und eine stets gleichbleibende Lage des Thermoschalters gegenüber der Statorwicklung zu erreichen.The object of the invention is now the production of a thermal switch equipped electric motors simplify damage to the Completely exclude winding wires and a constant position of the To achieve thermal switch opposite the stator winding.

Zur Lösung der gestellten Aufgabe wird in erster Linie vorgeschlagen, daß der die Betriebstemperdtur der Statorwicklung überwachende Thermoschalter in einer Ausnehmung des die Statorwicklung tragenden Blechpaketes untergebracht ist, wobei sich diese Ausnehmung in einer Zone geringer magnetischer Dichte befindet und der Thermoschalter in der Ausnehmung wärmeleitend festgelegt ist.To solve the problem, it is primarily suggested that that the thermal switch monitoring the operating temperature of the stator winding in a recess of the laminated core carrying the stator winding is accommodated, this recess being in a zone of low magnetic density and the thermal switch is fixed in the recess in a thermally conductive manner.

Als Vorteil ergeben sich daraus beträchtliche fertigungstechnische Vereinfachungen, indem der Thermoschalter jetzt auch auf maschinellem Wege angebracht werden kann, was beim früheren Einbinden in die Wicklung undurchführbar war. Weiterhin sind nun Beschädigungen der Wicklungsdrähte ausgeschlossen, weil der Thermoschalter mit diesen nicht mehr in Berührung kommt. Schließlich ist auch die Lage des Thermoschalters und somit dessen Abschaltpunkt eindeutig festgelegt.This results in considerable manufacturing advantages as an advantage Simplifications, as the thermal switch is now also attached mechanically can become what was impracticable when it was previously integrated into the winding. Farther Damage to the winding wires is now excluded because the thermal switch no longer comes into contact with them. Finally, there is also the location of the thermal switch and thus its switch-off point is clearly defined.

Zweckmäßige Bauformen der Erfindung sind dadurch gekennzeichnet, daß sich die zur Unterbringung des Thermoschalters vorgesehene Ausnehmung axial-im Blechpaket erstreckt, wobei die Ausnehmung für den Thermoschalter taschenförmig ausgebildet sein oder aus einer am Umfang des Statorblechpaketes verlaufenden, gegebenenfalls hinterschnittenen Nut bestehen kann. Zum Festlegen des Thermoschalters in der Ausnehmung des Blechpaketes soll vorteilhafterweise das Imprägniermittel der Statorwicklung dienen.Appropriate designs of the invention are characterized in that the recess provided for accommodating the thermal switch is located axially in the laminated core extends, wherein the recess for the thermal switch be pocket-shaped or from an optionally undercut running on the circumference of the stator core Groove can exist. For setting the thermal switch in the recess of the laminated core should advantageously serve the impregnation of the stator winding.

Ausführungsbeispiele des Anmeldungsgegenstandes werden an Hand der Zeichnungen beschrieben. Darin zeigen im einzelnen: Fig. 1 einen erfindungsgemäßen Elektromotor im Querschnitt, Fig. 2 den Längsschnitt des Elektromotors aus Fig. 1, und Fig. 3 den Querschnitt eines abweichend von den Fig. 1 und 2 gestalteten Elektromotors.Embodiments of the subject of the application are based on the Drawings described. These show in detail: FIG. 1 shows one according to the invention Electric motor in cross section, FIG. 2 the longitudinal section of the electric motor from FIG. 1, and FIG. 3 shows the cross section of a device designed differently from FIGS. 1 and 2 Electric motor.

Der in den Pig. 1 und 2 abgebildete Elektromotor besitzt ein die Statorwicklung 1 tragendes zylindrisches Blechpaket 2, in dem der Rotor 3 umläuft. Die Betriebstemperatur der Statorwicklung 1 wird von einem Thermoschalter 4 überwacht, der in einer Ausnehmung 5 des Blechpaketes 2 untergebracht ist. Diese Ausnehmung 5 befindet sich entsprechend des dargestellten Kraftlinienverlaufs in einer Zone geringer magnetischer Dichte, um den Kraftlinienverlauf weitgehend unbeeinflußt zu lassen.The one in the Pig. The electric motor shown in 1 and 2 has a stator winding 1 supporting cylindrical laminated core 2 in which the rotor 3 rotates. The operating temperature the stator winding 1 is monitored by a thermal switch 4, which is located in a recess 5 of the laminated core 2 is housed. This recess 5 is located accordingly of the line of force shown in a zone less magnetic Density in order to leave the course of the lines of force largely unaffected.

Die zur Unterbringung des Thermoschalters 4 dienende Ausnehmung 5 soll sich nach Fig. 2 axial im Blechpaket 2 erstrecken und könnte auch taschenförmig ausgebildet sein. Der Thermoschalter 4 muß in der Ausnehmung 5 des Blechpaketes 2 wärmeleitend festgelegt sein, was am günstigsten durch das Imprägniermittel der Statorwicklung 1 erfolgt.The recess 5 serving to accommodate the thermal switch 4 is intended to extend axially in the laminated core 2 according to FIG. 2 and could also be pocket-shaped be trained. The thermal switch 4 must be in the recess 5 of the laminated core 2 be thermally conductive, which is best done by the impregnating agent Stator winding 1 takes place.

Eine andere Anbringungsmöglichkeit für den Thermoschalter 4 im Blechpaket 2 ist in Fig. 3 wiedergegeben, wo er in einer am Umfang des Blechpaketes 2 der Statorwicklung 1 axial verlaufenden hinterschnittenen Nut 6 angebracht ist. Diese Nut 6 hat ebenfalls eine genaue Lagebestimmung des Thermoschalters 4 im Hinblick auf die Statorwicklung 1 zur Folge, so daß sein Abschaltpunkt wiederum eindeutig vorbestimmt ist.Another way of attaching the thermal switch 4 in the laminated core 2 is shown in Fig. 3, where it is in a on the circumference of the laminated core 2 of the stator winding 1 axially extending undercut groove 6 is attached. This groove 6 also has a precise determination of the position of the thermal switch 4 with regard to the stator winding 1, so that its switch-off point is again clearly predetermined.

Claims (6)

Elektromotor mit einem Thermoschalter Ansprüche: 1. Elektromotor mit einem Thermoschalter, der die Betriebstemperatur der auf einem Blechpaket angeordneten Statorwicklung überwacht, dadurch gekennzeichnet, daß der die Betriebstemperatur der Statorwicklung (1) überwachende Thermoschalter (4) in einer Ausnehmung (5) des die Statorwicklung (1) tragenden Blechpaketes (2) untergebracht ist.Electric motor with a thermal switch claims: 1. Electric motor with a thermal switch that controls the operating temperature of the stacked laminated core Stator winding monitored, characterized in that the operating temperature the stator winding (1) monitoring thermal switch (4) in a recess (5) of the the stator winding (1) carrying the laminated core (2) is housed. 2. Elektromotor nach Anspruch 1, dadurch gekennzeichnet, daß sich die Ausnehmung (5) filr den Thermoschalter (4) in einer Zone geringer magnetischer Dichte befindet und der Thermoschalter (4) in der Ausnehmung (5) wärmeleitend festgelegt ist.2. Electric motor according to claim 1, characterized in that the recess (5) for the thermal switch (4) in a zone less magnetic Density and the thermal switch (4) in the Recess (5) is set to be thermally conductive. 3. Elektromotor nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß sich die zur Unterbringung des Thermoschalters (4) vorgesehene Ausnehmung (5) axial im Blechpaket (2) erstreckt.3. Electric motor according to claim 1 or 2, characterized in that the recess (5) provided for accommodating the thermal switch (4) moves axially extends in the laminated core (2). 4. Elektromotor nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Ausnehmung (5) für den Thermoschalter (4) taschenförmig ausgebildet ist.4. Electric motor according to one of claims 1 to 3, characterized in that that the recess (5) for the thermal switch (4) is pocket-shaped. 5. Elektromotor nach Anspruch 3, dadurch gekennzeichnet, daß die Ausnehmung (5) für den Thermoschalter (4) aus einer am Umfang des Blechpaketes (2) der Statorwicklung (1) verlaufenden, gegebenenfalls hinterschnittenen Nut (6) besteht.5. Electric motor according to claim 3, characterized in that the recess (5) for the thermal switch (4) from one on the circumference of the laminated core (2) of the stator winding (1) running, possibly undercut groove (6). 6. Elektromotor nach einem der vorhergehenden Ansprche, dadurch gekennzeichnet, daß zum Festlegen des Thermoschalters (4) in der Ausnehmung (5) des Blechpaketes (2) das Imprägniermittel der Statorwicklung (1) dient.6. Electric motor according to one of the preceding claims, characterized in that that to set the thermal switch (4) in the recess (5) of the laminated core (2) the impregnating agent is used for the stator winding (1).
DE19803024665 1980-06-30 1980-06-30 Thermal cut=out switch for electric motor - monitors stator winding temp. and fits into opening in laminations packet Ceased DE3024665A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803024665 DE3024665A1 (en) 1980-06-30 1980-06-30 Thermal cut=out switch for electric motor - monitors stator winding temp. and fits into opening in laminations packet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803024665 DE3024665A1 (en) 1980-06-30 1980-06-30 Thermal cut=out switch for electric motor - monitors stator winding temp. and fits into opening in laminations packet

Publications (1)

Publication Number Publication Date
DE3024665A1 true DE3024665A1 (en) 1982-01-21

Family

ID=6105989

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803024665 Ceased DE3024665A1 (en) 1980-06-30 1980-06-30 Thermal cut=out switch for electric motor - monitors stator winding temp. and fits into opening in laminations packet

Country Status (1)

Country Link
DE (1) DE3024665A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332533A1 (en) * 1983-09-09 1985-03-28 Layh Hans Dieter AC ALTERNATOR
DE4009280A1 (en) * 1989-03-22 1990-09-27 Briggs & Stratton Corp AC POWER MACHINE WITH INTEGRAL STAND AND REGULATOR, ESPECIALLY FOR VEHICLES WITH COMBUSTION ENGINES
DE4435511C1 (en) * 1994-10-04 1996-02-22 Grundfos As Centrifugal pump e.g. for hot water circulation pump, gas thermometers, heating and hot water supply systems
DE10145570A1 (en) * 2001-09-14 2003-04-17 Festool Gmbh electric motor
EP1717932A1 (en) * 2004-02-17 2006-11-02 Mitsubishi Denki Kabushiki Kaisha Rotating electric machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332533A1 (en) * 1983-09-09 1985-03-28 Layh Hans Dieter AC ALTERNATOR
US4604537A (en) * 1983-09-09 1986-08-05 Layh Hans Dieter AC tacho-generator
DE4009280A1 (en) * 1989-03-22 1990-09-27 Briggs & Stratton Corp AC POWER MACHINE WITH INTEGRAL STAND AND REGULATOR, ESPECIALLY FOR VEHICLES WITH COMBUSTION ENGINES
DE4435511C1 (en) * 1994-10-04 1996-02-22 Grundfos As Centrifugal pump e.g. for hot water circulation pump, gas thermometers, heating and hot water supply systems
DE10145570A1 (en) * 2001-09-14 2003-04-17 Festool Gmbh electric motor
DE10145570C2 (en) * 2001-09-14 2003-12-24 Festool Gmbh electric motor
EP1717932A1 (en) * 2004-02-17 2006-11-02 Mitsubishi Denki Kabushiki Kaisha Rotating electric machine
EP1717932A4 (en) * 2004-02-17 2010-08-04 Mitsubishi Electric Corp Rotating electric machine

Similar Documents

Publication Publication Date Title
DE2211184C3 (en) Disc anchor
DE3438747A1 (en) ELECTRONICALLY COMMUTED, COLLECTORLESS DC MOTOR
DE3838436C2 (en) Slip ring assembly
DE3024665A1 (en) Thermal cut=out switch for electric motor - monitors stator winding temp. and fits into opening in laminations packet
DE1538919B2 (en) ELECTRIC MOTOR LOW POWER
DE2644279C3 (en) Stand for a polyphase electric motor
DE2246962C3 (en) Arrangement for increasing the axial force during motor start-up in a sliding armature brake motor and method for producing such an arrangement
DE1908656C3 (en) Plastic power tool motor housing
DE1204314B (en) Stand winding of an induction miniature motor for two- or multi-phase alternating current
DE3038444C2 (en) Oil-cooled generator
EP0145987A2 (en) Electric machine, particularly for driving a filtration pump
DE3442348C2 (en)
DE3003483C2 (en) Arrangement for fastening an air gap winding in the stator of an electrical machine
DE102019206894A1 (en) Electric machine
DE2742749A1 (en) LIMIT SWITCH
DE4117193C2 (en) Arrangement for fixing anchor winding heads
EP0591730B1 (en) Signal transmission device between two end portions
DE2622916A1 (en) ROTATING ELECTRIC MACHINE
DE1014211B (en) Hand machine tool with an electric drive motor, which is housed in an insulated metallic outer housing
DE8017494U1 (en) ELECTRIC MOTOR WITH A THERMAL SWITCH
EP0693806B1 (en) Device for signal transmission between two terminals
DE69205289T2 (en) Anchor for a rotating electrical machine.
DE2804166A1 (en) ELECTRICAL MACHINE CAN BE USED AS A DRIVE MOTOR OR GENERATOR
DE8500531U1 (en) Electric machine with a tubular housing
EP0670246B1 (en) Signal transmission installation between two terminals

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection