DE2321493A1 - DEVICE FOR LIMITING THE STARTING CURRENT OF A UNIVERSAL MOTOR - Google Patents

DEVICE FOR LIMITING THE STARTING CURRENT OF A UNIVERSAL MOTOR

Info

Publication number
DE2321493A1
DE2321493A1 DE19732321493 DE2321493A DE2321493A1 DE 2321493 A1 DE2321493 A1 DE 2321493A1 DE 19732321493 DE19732321493 DE 19732321493 DE 2321493 A DE2321493 A DE 2321493A DE 2321493 A1 DE2321493 A1 DE 2321493A1
Authority
DE
Germany
Prior art keywords
limiting
starting current
capacitor
universal motor
electronic component
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
DE19732321493
Other languages
German (de)
Other versions
DE2321493B2 (en
Inventor
Harald Schellenberger
Roland Dipl Ing Stuehrmann
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 DE19732321493 priority Critical patent/DE2321493B2/en
Priority to NL7404827A priority patent/NL7404827A/xx
Priority to FR7413602A priority patent/FR2227673B1/fr
Priority to IT2185574A priority patent/IT1010057B/en
Publication of DE2321493A1 publication Critical patent/DE2321493A1/en
Publication of DE2321493B2 publication Critical patent/DE2321493B2/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/24—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual ac commutator motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)
  • Motor And Converter Starters (AREA)

Description

Nunmehr selbständige Patentanmeldung Now independent patent application

Vorrichtung zur Anlaufstrombegrenzung eines Universalmotors. —
(VPA 72/3178)Device for limiting the starting current of a universal motor. -
(VPA 72/3178)

Das Hauptpatent betrifft eine Vorrichtung zur Anlaufstrombegrenzung eines Universalmotors, wobei der Motor über eine elektronische Schaltung betrieben wird. Das RC-Glied dieser elektronischen Schaltung ist mit einem Verzögerungsglied versehen, welches den Ladestrom für den Kondensator des Steuerteiles beim Anlauf vermindert. Dadurch soll verhindert werden, daß die normaler Weise hohe Anlaufstromspitze die Sicherung im Leitungsnetz ansprechen läßt. In der Hauptanmeldung ist als Verzögerungsglied ein Heißleiter vorgeschlagen. Ein solcher Heißleiter muß erst wieder vollständig erkaltet sein, um den für ein erneutes Einschalten notwendigen hohen Widerstand zu besitzen. Bei einer schnellen Schaltfolge besteht daher die Gefahr, daß keine Anlaufstrombegrenzung mehr erfolgt.The main patent relates to a device for limiting the starting current a universal motor, the motor being operated via an electronic circuit. The RC link of this electronic circuit is provided with a delay element, which the charging current for the capacitor of the Control part at start-up reduced. This is to prevent the normally high starting current peak from the Can respond to fuse in the line network. In the main application, a thermistor is proposed as a delay element. Such an NTC thermistor must first be completely cooled down in order to be able to switch on again possessing high resistance. With a fast switching sequence there is therefore the risk that there will be no starting current limitation more is done.

Die Erfindung schaltet diese Gefahr dadurch aus, daß das Verzögerungsglied von einem in das RC-Glied eingebauten elektronischen Bauteil gebildet ist. Dieser kann aus einem in einer Gleichrichterbrücke angeordneten Kondensator bestehen, der von einem hochohmigen Widerstand üb erbrückt ist. Die Er- ■ findung ist an Hand der Zeichnung in einem Ausführungsbei- ■ spiel erläutert, wobei die Zeichnung das Schaltschema der Vorrichtung zeigt.The invention eliminates this risk in that the delay element is formed by an electronic component built into the RC element. This can consist of one in one There are rectifier bridge arranged capacitor, which is bridged over by a high-resistance resistor. The er- ■ Finding is on the basis of the drawing in an ■ game explained, the drawing showing the circuit diagram of the device.

Der Universalmotor 1 wird zur Rehzahlregelung.über eine anThe universal motor 1 is used for number control via an on

-2--2-

409844/0608409844/0608

VPA 73/3090VPA 73/3090

sich "bekannte elektronische Phasenanschnittsteuerung 2 betrieben. Parallel zum Kondensator C der Steuerung ist in das RC-Grlied derselben eine Gleichrichterbrücke 3 geschaltet, in der ein Kondensator 4 angeordnet ist, der seinerseits von einem hochohmigen Widerstand 5 überbrückt ist. Durch diese Anordnung erfolgt im RC-Glied eine Spannungsteilung, d.h. der Ladestrom für den Kondensator C ist zunächst gering, und der Motor läuft mit geringer Leistung' an. Mit zunehmender Ladung des Kondensators 4 bis maximal auf die volle Netzspannung erhöht sich die am Kondensator- C anliegende Ladespannung allmählich, bis die Vollaussteuerung erreicht wird. Der Widerstand 5 sorgt dafür, daß sich der Kondensator 4 bei abgeschaltetem Motor wieder entlädt."known electronic phase control 2 operated. In parallel with the capacitor C of the controller, a rectifier bridge 3 is connected in the RC element of the controller, in FIG which a capacitor 4 is arranged, which in turn is bridged by a high-value resistor 5. Through this Arrangement, the voltage is divided in the RC element, i.e. the charging current for the capacitor C is initially low, and the engine starts with low power. With increasing When the capacitor 4 is charged up to a maximum of the full mains voltage, the charging voltage applied to the capacitor C increases gradually until the full scale is reached. The resistor 5 ensures that the capacitor 4 discharges again when the engine is switched off.

3 Patentansprüche
1 Figur3 claims
1 figure

-3-409844/0608 -3-409844 / 0608

Claims (1)

- 3 Pa tentansprüche- 3 patent claims VPA 73/3090VPA 73/3090 232H93232H93 Vorrichtung zur Anlaufstrombegrenzung eines Universalmotors, wobei der Motor über eine elektronische Schaltung betrieben wird, deren- RC-Glied mit einem den Ladestrom für den Kondensator des Steuerteiles, beim Anlauf verminderndes Verzögerungsglied versehen ist, nach Patentanmeldung P 22 38 093.4, dadurch gekennzeichnet, daß das Verzögerungsglied von einem in das RC-Glied eingebauten elektronischen Bauteil gebildet ist.Device for limiting the starting current of a universal motor, The motor is operated via an electronic circuit, whose RC element is connected to the charging current for the capacitor of the control part, a delay element reducing the start-up is provided, according to Patent application P 22 38 093.4, characterized in that the delay element of one in the RC element built-in electronic component is formed. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der elektronische Bauteil aus einem in einer Gleichrichterbrücke ( 3) angeordneten Kondensator (4) besteht, der von einem hochohmigen Widerstand (5) überbrückt ist.Device according to claim 1, characterized in that that the electronic component consists of a capacitor (4) arranged in a rectifier bridge (3), which is bridged by a high resistance (5). Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der elektronische Bauteil parallel mit dem sator (1) des RC-Gliedes geschaltet ist.Device according to claim 2, characterized in that the electronic component is parallel to the Sator (1) of the RC element is switched. 409844/0608409844/0608 L e e r s e i t eL e r s e i t e
DE19732321493 1973-04-27 1973-04-27 DEVICE FOR LIMITING THE STARTING CURRENT OF A UNIVERSAL MOTOR Pending DE2321493B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19732321493 DE2321493B2 (en) 1973-04-27 1973-04-27 DEVICE FOR LIMITING THE STARTING CURRENT OF A UNIVERSAL MOTOR
NL7404827A NL7404827A (en) 1973-04-27 1974-04-09
FR7413602A FR2227673B1 (en) 1973-04-27 1974-04-18
IT2185574A IT1010057B (en) 1973-04-27 1974-04-24 DEVICE FOR LIMITING THE STARTING CUR RENT OF A UNIVERSAL MOTOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732321493 DE2321493B2 (en) 1973-04-27 1973-04-27 DEVICE FOR LIMITING THE STARTING CURRENT OF A UNIVERSAL MOTOR

Publications (2)

Publication Number Publication Date
DE2321493A1 true DE2321493A1 (en) 1974-10-31
DE2321493B2 DE2321493B2 (en) 1976-07-29

Family

ID=5879513

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732321493 Pending DE2321493B2 (en) 1973-04-27 1973-04-27 DEVICE FOR LIMITING THE STARTING CURRENT OF A UNIVERSAL MOTOR

Country Status (4)

Country Link
DE (1) DE2321493B2 (en)
FR (1) FR2227673B1 (en)
IT (1) IT1010057B (en)
NL (1) NL7404827A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755368B4 (en) * 1996-12-27 2005-10-27 Makita Corp., Anjo Starting device for an electric motor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2657921C3 (en) * 1976-12-21 1983-11-03 Capax B.V., Eindhoven Circuit arrangement for the start-up control of an AC series motor
GB1600206A (en) * 1977-08-25 1981-10-14 Bosch Gmbh Robert Circuit for operating a universal motor
DE2758309A1 (en) * 1977-12-27 1979-07-05 Bosch Gmbh Robert Universal motor with starting current surge limiter - uses controlled rectifier system with blocking up to half wave of supply
DE3728609C2 (en) * 1987-08-27 1993-12-16 Licentia Gmbh Device for limiting the centrifugal starting current and for preventing uncontrolled operating states after power failures in washing machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755368B4 (en) * 1996-12-27 2005-10-27 Makita Corp., Anjo Starting device for an electric motor

Also Published As

Publication number Publication date
DE2321493B2 (en) 1976-07-29
NL7404827A (en) 1974-10-29
IT1010057B (en) 1977-01-10
FR2227673A1 (en) 1974-11-22
FR2227673B1 (en) 1977-10-14

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