DE2115802C3 - Primary winding of a traveling field motor - Google Patents

Primary winding of a traveling field motor

Info

Publication number
DE2115802C3
DE2115802C3 DE19712115802 DE2115802A DE2115802C3 DE 2115802 C3 DE2115802 C3 DE 2115802C3 DE 19712115802 DE19712115802 DE 19712115802 DE 2115802 A DE2115802 A DE 2115802A DE 2115802 C3 DE2115802 C3 DE 2115802C3
Authority
DE
Germany
Prior art keywords
coils
primary winding
traveling field
field motor
traveling
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.)
Expired
Application number
DE19712115802
Other languages
German (de)
Other versions
DE2115802B2 (en
DE2115802A1 (en
Inventor
Johann Dipl.-Ing. 8501 Rueckersdorf Woell
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE19712115802 priority Critical patent/DE2115802C3/en
Publication of DE2115802A1 publication Critical patent/DE2115802A1/en
Publication of DE2115802B2 publication Critical patent/DE2115802B2/en
Application granted granted Critical
Publication of DE2115802C3 publication Critical patent/DE2115802C3/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/025—Asynchronous motors

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)

Description

Die Erfindung bezieht sich auf eine Primärwicklung eines Wanderfeldmotors, bestehend aus parallelgeschalteten Spi.'en.The invention relates to a primary winding of a traveling field motor, consisting of parallel-connected Spi.'en.

Bei den als Linear- oder Sektorrnotoren bekannten Wanderfeldmotoren kann die Wicklung im Primärteil mit parallelgeschalteten Spulen ausgeführt sdn. Diese parallelgeschalteten Spulen werden üblicherweise gleichartig ausgeführt. Die in Wanderfeldrichtung, d. h. in Pfeilrichtung gemäß der Zeichnung, am Anfang liegenden Spulen 1, 2,3 der einzelnen Stränge U. V, W führen beim Eintritt des feldfreien Sekundärteils des Wanderfeldmotors in den Feldbereich des Primärteiles infolge des Randeffektes größere Ströme ais die nachfolgenden Spulen, so daß die Verlustdichte in den Spulen des Primärteiles uneinheitlich ist. Diese Uneinheitlichkeit ist wegen der dabei entstehenden unterschiedlichen Erwärmungszonen unenvünscht.In the rr as linear or Sekto notoren known traveling wave motors, the winding may sdn carried out in the primary section with parallel-connected coils. These coils connected in parallel are usually designed in the same way. The coils 1, 2, 3 of the individual strands U. V, W located at the beginning in the traveling field direction, ie in the direction of the arrow according to the drawing, carry larger currents than the subsequent coils when the field-free secondary part of the traveling field motor enters the field area of the primary part due to the edge effect so that the loss density in the coils of the primary part is inconsistent. This inconsistency is undesirable because of the different heating zones that arise.

Der Erfindung liegt die Aufgabe zugrunde, auf einfache Weise eine Vergleichmäßigung der Strombelastung der einzelnen Spulen und damit eine Vergleichmäßigung der Verlustdichte zu erreichen und eine höhere Ausnutzung des Wanderfeldmotors zu ermöglichen.
Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß die in Wanderfeldrichtung gesehen am Anfang liegenden Spulen der einzelnen Stränge eine höhere Impedanz als die übrigen Spulen besitzen. Die höhere Impedanz hat eine kleinere Stromaufnahme und damit auch eine kleinere Verlustdichte zur Folge.The invention is based on the object of making the current load of the individual coils more uniform in a simple manner and thus making the density of losses more uniform and enabling greater utilization of the traveling field motor.
This object is achieved according to the invention in that the coils of the individual strands, which are located at the beginning, as seen in the traveling field direction, have a higher impedance than the other coils. The higher impedance results in a lower power consumption and thus also a lower loss density.

Es wird in vielen Fällen genügen, nur die ersten Spulen 1, 2,3 der einzelnen Stränge U, V, W mit einer größeren Impedanz auszustatten und die übrigen Spulen 4,5, 6,7, 8,9, 10, 11, 12 aller Stränge unter sich gleich auszuführen.In many cases it will be sufficient to equip only the first coils 1, 2, 3 of the individual strands U, V, W with a greater impedance and the remaining coils 4, 5, 6, 7, 8, 9, 10, 11, 12 of all strands in the same way.

Jedoch kann es für besonders hoch auszunutzende Wanderfeldmotoren vorteilhaft sein, die Impedanz sämtlicher Spulen der einzelnen Stränge vom Anfang zum Ende des Primärteils hin stufenweise kleiner zu wählen.However, the impedance can be advantageous for traveling-field motors that are to be used particularly highly all coils of the individual strands gradually smaller from the beginning to the end of the primary part Select.

Zur Erzielung der unterschiedlichen Impedanzen können bei gleichem Nutraum für alle Spulen die Spulen höherer Impedanz mit einer größeren Windungszahl ausgeführt werden.To achieve the different impedances, with the same slot space for all coils, the Coils of higher impedance are designed with a larger number of turns.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt, die die Primärwicklung eines Wanderfeldmotors in vierpoliger Ausführung mit einer vierfachen Parallelschaltung der Spulen zeigt.An embodiment of the invention is shown in the drawing, which shows the primary winding of a Traveling field motor in a four-pole design with a four-fold parallel connection of the coils shows.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (3)

Patentansprüche:Patent claims: 1. Primärwicklung eines Wanderfeldmotors, bestehend aus parallelgeschalteten Spulen, dadurch gekennzeichnet, daß die in Wanderfeldrichtung gesehen am Anfang liegenden Spulen (1, 2, 3) der einzelnen Stränge (U, V, W) eine höhere Impedanz als die übrigen Spulen (4, 5, 6, 7. 8,9, 10, 11, 12) besitzen.1. Primary winding of a traveling field motor, consisting of coils connected in parallel, characterized in that the coils (1, 2, 3) of the individual strands (U, V, W) located at the beginning, viewed in the traveling field direction, have a higher impedance than the other coils (4, 5, 6, 7, 8, 9, 10, 11, 12). 2. Primärwicklung nach Anspruch 1, dadurch gekennzeichnet, daß die Impedanz sämtlicher Spulen der einzelnen Stränge \om Anfang zum Ende des Primärteils hin stufenweise kleiner gewählt ist.2. Primary winding according to claim 1, characterized in that the impedance of all Coils of the individual strands \ from the beginning to the end of the primary part are chosen to be gradually smaller is. 3. Primärwicklung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß bei gleichem Nutraum für alle Spulen die Spulen höherer Impedanz mit einei größeren Windungszahl ausgeführt sind.3. Primary winding according to claim 1 or 2, characterized in that with the same slot space For all coils, the coils of higher impedance are designed with a larger number of turns are.
DE19712115802 1971-04-01 1971-04-01 Primary winding of a traveling field motor Expired DE2115802C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19712115802 DE2115802C3 (en) 1971-04-01 1971-04-01 Primary winding of a traveling field motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712115802 DE2115802C3 (en) 1971-04-01 1971-04-01 Primary winding of a traveling field motor

Publications (3)

Publication Number Publication Date
DE2115802A1 DE2115802A1 (en) 1972-10-19
DE2115802B2 DE2115802B2 (en) 1973-03-29
DE2115802C3 true DE2115802C3 (en) 1973-10-25

Family

ID=5803511

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712115802 Expired DE2115802C3 (en) 1971-04-01 1971-04-01 Primary winding of a traveling field motor

Country Status (1)

Country Link
DE (1) DE2115802C3 (en)

Also Published As

Publication number Publication date
DE2115802B2 (en) 1973-03-29
DE2115802A1 (en) 1972-10-19

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EF Willingness to grant licences
EHJ Ceased/non-payment of the annual fee