EP0299322B1 - Dispositif de commande pour le moteur de soufflerie d'un aspirateur de poussière - Google Patents

Dispositif de commande pour le moteur de soufflerie d'un aspirateur de poussière Download PDF

Info

Publication number
EP0299322B1
EP0299322B1 EP88110661A EP88110661A EP0299322B1 EP 0299322 B1 EP0299322 B1 EP 0299322B1 EP 88110661 A EP88110661 A EP 88110661A EP 88110661 A EP88110661 A EP 88110661A EP 0299322 B1 EP0299322 B1 EP 0299322B1
Authority
EP
European Patent Office
Prior art keywords
output
control circuit
signal
control
flipflop
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 - Lifetime
Application number
EP88110661A
Other languages
German (de)
English (en)
Other versions
EP0299322A3 (en
EP0299322A2 (fr
Inventor
Ehrenhardt Dipl.-Ing. Kaupa (Fh)
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 AT88110661T priority Critical patent/ATE81957T1/de
Publication of EP0299322A2 publication Critical patent/EP0299322A2/fr
Publication of EP0299322A3 publication Critical patent/EP0299322A3/de
Application granted granted Critical
Publication of EP0299322B1 publication Critical patent/EP0299322B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2894—Details related to signal transmission in suction cleaners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2842—Suction motors or blowers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays

Definitions

  • the invention relates to a control circuit for the blower motor of a vacuum cleaner according to the preamble of claim 1.
  • control circuit is known from international patent application WO 87/01921.
  • this control circuit requires a large number of technically complex components, such as, for example, integrated control circuits and special flip-flop elements.
  • the invention has for its object to carry out a control circuit of the known type with simpler components without having to accept a loss in control accuracy and tax security.
  • the frequency of the supply voltage is supplied to the timing element, from which the timing element derives its counting pulses.
  • the time period until a signal appears at the outputs of the timer depends on the frequency of the supply voltage.
  • a time period, independent of the frequency of the supply voltage, until the pulses are delivered is achieved in that the timing element is provided with a frequency generator which generates the counting pulses.
  • other time intervals corresponding to powers of two are also possible for the output of the signals at the two outputs of the timing element.
  • the automatic resetting of the control circuit to the power level or speed level set on the potentiometer when the vacuum cleaner is started up or put back into operation after being switched off during suction work is achieved in a simple manner by the reset input of the first flip-flop element being connected to the positive pole via a pulse capacitor the DC supply voltage of the control circuit is connected.
  • a control circuit which acts on a line stage 3 lying in series with the blower motor 2 of a vacuum cleaner.
  • a main switch 4 is used to switch the vacuum cleaner on and off.
  • To generate the DC voltage required for the control circuit 1 is a from the series circuit a Zener diode and a diode, as well as a rectifier component 5, which is connected to their common connection point and has a series RC element, which is followed by a smoothing capacitor 6.
  • 7 is the positive pole and 8 the negative pole of the DC circuit.
  • the positive pole 7 is also connected to the one pole of the AC voltage circuit feeding the blower motor 2.
  • a timing element 9 and first and second flip-flop elements 10 and 11 are connected to the DC voltage circuit with their supply connections. Furthermore, the LED 13 of an optocoupler 14 is connected to this DC voltage circuit via a control transistor 12.
  • the power stage 3 has a triac 15 which is in series with the blower motor 2.
  • a potentiometer 17 is provided in its control circuit 16, with which a limiting resistor 18 is in series. This limiting resistor can also be integrated in the potentiometer 17.
  • the switching path 19 of the optocoupler 14 lies parallel to the potentiometer 17 and the limiting resistor 18.
  • the timing element 9 has an integrated frequency generator which generates the necessary counting pulses.
  • the frequency generated by the frequency generator can be varied by appropriate connection with RC elements 20.
  • the timer 9 also has a start input 21 and a first and second output 22 and 23. At these outputs 22 and 23, an output signal appears at different times after the start of the timer 9, the output signal at the first output 22 earlier than at the second Exit 23 appears.
  • the output signal of the first output 22 of the timing element 9 is fed via a first capacitor 24 to the reset input R of the first flip-flop element 10 and the output signal of the second output 23 via a second capacitor 25 to the reset input R of the second flip-flop element 11 .
  • the control circuit also contains a control circuit 26 which can be briefly connected to the positive pole 7 of the DC voltage circuit via a manually operable switching element 27.
  • the timing element 9 with its start input 21 and the two flip-flop elements 10 and 11 with their set inputs S are connected to this control circuit 26.
  • the connection of the set input S of the second flip-flop element 11 to the control circuit 26 is indicated by dashed lines. Since it may be cheaper to supply this flip-flop element 11 with the set signal with a delay compared to the set signal of the first flip-flop element 10, the set input S of the second flip-flop element 11 can be via one belonging to an RC element Coupling capacitor 28 are connected to the non-inverting output Q of the first flip-flop element 10.
  • the base of the control transistor 12 is also connected to this output.
  • the control circuit 26 of the switching element 27 is also via a blocking diode 29 with the inverting output Q connected. The blocking diode 29 is with its forward direction to the inverting output Q directed.
  • the control circuit 1 works as follows: By closing the main switch 4, the supply voltage U, which is, for example, a 220 V AC voltage, is switched on. In this case, a pulse capacitor 31 connected to its one terminal at the positive pole 7 and connected to the other input via a decoupling diode 30 to the reset input R of the first flip-flop element 10 is charged, thereby giving a reset pulse to the first flip-flop element 10 This ensures that the control circuit is switched back to its initial state each time the vacuum cleaner is switched on or on again. In this initial state, the control transistor 12 is blocked and thus the bridging of the potentiometer 17 and the limiting resistor 18 by the switching path 19 of the optocoupler 14 is ineffective.
  • the triac 15 is thus corresponding to the respective setting of the potentiometer via the potentiometer 17 and the limiting resistor 18 17 modulated.
  • the blower motor 2 can thus be controlled via the potentiometer 17 up to a speed predetermined by the limiting resistor 18 and corresponding to the permissible continuous output of the blower motor 2.
  • the switching element 27 is actuated so that the timing element 9 has a start pulse at its start input 21 and the two flip-flop elements 10 and 11 at their set inputs S receive a set pulse each.
  • the second flip-flop element 11 can also receive its set pulse with a delay via the non-inverting output Q of the first flip-flop element 10. These set pulses cause an H signal to be present at the non-inverting output Q of each flip-flop element 10 and 11.
  • the control transistor 12 is turned on by the H signal present at the output Q of the first flip-flop element 10, so that the light-emitting diode 13 receives voltage and the switching path 19 is controlled into the conductive state by its emitted light. So that the potentiometer 17 and the limiting resistor 18 are bridged, so that the triac is fully controlled and the blower motor now runs at the highest speed.
  • An output signal appears at the first output 22 of the timing element 9, which is started simultaneously when the switching element 27 is actuated, after a specific, predetermined time. This output signal is forwarded via the capacitor 24 as a pulse to the reset input R of the first flip-flop element 10.
  • the first flip-flop element 10 is reset again, so that an L signal appears at its non-inverting output Q. This leads to the control transistor 12 being blocked.
  • the light-emitting diode 13 of the optocoupler 14 goes out and the switching path 19 returns to its non-conductive state.
  • the potentiometer 17 and the limiting resistor 18 are thus again effective in the control circuit 16 of the triac 15.
  • a corresponding blocking is provided in the control circuit so that a renewed increase in power on the blower motor 2 can only take place after the recovery time has prevented it from overheating.
  • the blocking happens as follows: By actuating the switching element 27, the second flip-flop element 11 has also received a set pulse. This set pulse causes an H signal at the non-inverting output Q of the second flip-flop element and at its inverting output Q an L signal is present. The presence of an L signal at the inverting output Q of the second flip-flop element 11 means that the control circuit 26 is short-circuited via the blocking diode 29. If the switching element 27 is actuated during this time, the pulses thereby triggered become due to the short circuit of the control circuit 26 with the inverting output Q of the second flip-flop element 11 is not effective.
  • the circuit is also provided with the usual interference suppression circuits consisting of capacitors, diodes and resistors, which are generally known and therefore need not be described in more detail here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Control Of Ac Motors In General (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Separation Of Particles Using Liquids (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Claims (6)

  1. Circuit de commande pour le moteur (2) du ventilateur d'un aspirateur, qui possède un élément de commutation à semiconducteurs (15) commandable, monté en série avec le moteur (2) du ventilateur et dont le degré d'attaque est réglable par l'intermédiaire d'un potentiomètre (17) de telle sorte que le moteur (2) du ventilateur peut être commandé, pendant le fonctionnement normal de l'aspirateur, uniquement jusqu'à une vitesse de rotation correspondant à sa puissance permanente admissible, lequel circuit de commande comporte un circuit de commutation (27) pouvant être actionné à la main et qui permet de déclencher un signal de démarrage pour une minuterie (9) et un autre signal de commande provoquant l'arrêt du potentiomètre (10) et simultanément le réglage direct du circuit de commande de la vitesse de rotation sur une vitesse de rotation maximale, la minuterie (9) possédant des première et seconde sorties (22,23) dans ce circuit de commande, et dans lequel sur la seconde sortie (23) apparaît un signal décalé dans le temps par rapport au signal de la première sortie (22), et le signal de la première sortie commande un premier circuit à bascule bistable (10) activant et arrêtant le potentiomètre (17), tandis que le signal de la seconde sortie commande une seconde bascule bistable (11) qui amène à réagir le circuit de commande (26) équipé du circuit d'interruption (27),
    caractérisé par le fait
    que le signal de commande du circuit d'interruption (27) est envoyé directement à la minuterie (9) et en outre aux entrées de positionnement (S) des deux circuits à bascule bistable (10 et 11), que la première sortie (22) de la minuterie (9) est raccordée à l'entrée de remise à l'état initial (R) du premier circuit à bascule bistable (10), dont le signal de sortie, qui apparaît sur la sortie non inverseuse (Q), commande un élément de commutation (19) qui shunte le potentiomètre (17) raccordé directement à l'entrée de commande de l'élément de commutation à semiconducteurs (15), que la seconde sortie (23) de la minuterie (29) est raccordée à l'entrée de remise à l'état initial (R) du second circuit à bascule bistable (11), et qu'entre la sortie inverseuse (Q) de ce circuit et le circuit de commande (26) appliquant le signal de commande du circuit d'interruption (27) est branchée une diode de blocage (29) dont le sens passant est dirigé vers la sortie inverseuse (Q).
  2. Circuit de commande suivant la revendication 1, caractérisé par le fait que le circuit de commutation qui shunte le potentiomètre (17) est la section de commutation (19) d'un optocoupleur (14).
  3. Circuit de commande suivant la revendication 1 ou 2, caractérisé par le fait que le signal de commande du circuit d'interruption (27) est envoyé d'une manière retardée dans le temps au second circuit à bascule bistable (11).
  4. Circuit de commande suivant la revendication 3, caractérisé par le fait que l'entrée de positionnement (S) du second circuit à bascule bistable (11) est raccordée par l'intermédiaire d'un circuit de retardement à la sortie non inverseuse (Q) du premier circuit à bascule bistable (10).
  5. Circuit de commande suivant une ou plusieurs des revendications précédentes, caractérisé par le fait que la minuterie (9) comporte un générateur de fréquence produisant les impulsions de comptage.
  6. Circuit de commande suivant une ou plusieurs des revendications précédentes, avec retour automatique, qui s'effectue lors de la mise en service de l'aspirateur, sur la vitesse de rotation déterminée par le réglage du potentiomètre, caractérisé par le fait que l'entrée de remise à l'état initial (R) du premier circuit à bascule bistable (10) est raccordée, par l'intermédiaire d'un condensateur à impulsions (31), au pôle positif (7) de la tension continue d'alimentation du circuit de commande (1).
EP88110661A 1987-07-16 1988-07-04 Dispositif de commande pour le moteur de soufflerie d'un aspirateur de poussière Expired - Lifetime EP0299322B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88110661T ATE81957T1 (de) 1987-07-16 1988-07-04 Steuerschaltung fuer den geblaesemotor eines staubsaugers.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3723567 1987-07-16
DE3723567 1987-07-16

Publications (3)

Publication Number Publication Date
EP0299322A2 EP0299322A2 (fr) 1989-01-18
EP0299322A3 EP0299322A3 (en) 1990-02-14
EP0299322B1 true EP0299322B1 (fr) 1992-11-04

Family

ID=6331723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88110661A Expired - Lifetime EP0299322B1 (fr) 1987-07-16 1988-07-04 Dispositif de commande pour le moteur de soufflerie d'un aspirateur de poussière

Country Status (5)

Country Link
EP (1) EP0299322B1 (fr)
AT (1) ATE81957T1 (fr)
DE (1) DE3875660D1 (fr)
FI (1) FI84133C (fr)
NO (1) NO883150L (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225219B (en) * 1988-10-19 1992-08-26 Hoover Plc Suction cleaner
SE463070B (sv) * 1989-02-14 1990-10-08 Electrolux Ab Anordning vid en dammsugare
GB2237185A (en) * 1989-10-17 1991-05-01 Electrolux Ltd Vacuum cleaner
EP0438827A1 (fr) * 1990-01-19 1991-07-31 Koninklijke Philips Electronics N.V. Appareil comportant un moteur électrique à puissance variable
DE69203124T2 (de) * 1991-03-29 1996-02-01 Philips Electronics Nv Apparat wenigstens mit einem Elektromotor mit abänderbarer Motorleistung.
WO1995027432A1 (fr) * 1994-04-06 1995-10-19 Philips Electronics N.V. Aspirateur a interrupteurs independants sur le manche et sur le capot du moteur
GB2291791A (en) * 1994-07-26 1996-02-07 Buki Bamboeur Omoyiola Power driven toilet bowl cleaner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030059C2 (de) * 1980-08-08 1984-06-07 Progress-Elektrogeräte Mauz & Pfeiffer GmbH & Co, 7000 Stuttgart Staubsauger
DE3242118A1 (de) * 1982-11-13 1984-05-17 VEB Elektroinstallation Oberlind, DDR 6400 Sonneberg Steuerschaltung fuer einen staubsauger mit elektronischem drehzahlsteller
DE3431175C2 (de) * 1984-02-08 1986-01-09 Gerhard 7262 Althengstett Kurz Schutzvorrichtung für Staubsammeleinrichtungen
SE449947B (sv) * 1985-10-04 1987-06-01 Electrolux Ab Anordning vid dammsugare

Also Published As

Publication number Publication date
DE3875660D1 (de) 1992-12-10
NO883150L (no) 1989-01-17
EP0299322A3 (en) 1990-02-14
ATE81957T1 (de) 1992-11-15
FI84133C (fi) 1991-10-25
NO883150D0 (no) 1988-07-14
FI881336A0 (fi) 1988-03-21
FI84133B (fi) 1991-07-15
EP0299322A2 (fr) 1989-01-18
FI881336A (fi) 1989-01-17

Similar Documents

Publication Publication Date Title
EP0223316A2 (fr) Disposition de circuit pour produire une tension continue à partir d'une tension d'entrée sinusoidale
DE2910852A1 (de) Nulldurchgangsdetektorschaltung mit hoher toleranz
DE3123828A1 (de) Elektronische schaltvorrichtung
DE3840406C2 (fr)
EP0299322B1 (fr) Dispositif de commande pour le moteur de soufflerie d'un aspirateur de poussière
DE2263867A1 (de) Steuerschaltung fuer thyristoren
DE3324591A1 (de) Spannungsdetektorschaltung
EP0019812A1 (fr) Commutateur électronique marche-arrêt à effleurement
DE3840434A1 (de) Schaltungsanordnung fuer uebertragungseinrichtungen
DE2915882C2 (de) Pulsphasenmodulator
EP0321798B1 (fr) Montage pour la commande d'un triac de puissance
DE2715609B2 (de) Fenster-Diskriminatorschaltung
EP0120258B1 (fr) Circuit économiseur d'énergie
EP0002648B2 (fr) Minuterie pour cage d'escalier
EP0285801B1 (fr) Dispositif de commande à distance du moteur d'un aspirateur situé dans la poignée du tube suceur
DE3011127A1 (de) Schaltungsanordnung zum erzeugen von zuendimpulsen fuer wechselstrom- oder gleichstrom-schweisslichtboegen
DE2032131C3 (de) Einrichtung zur Erzeugung einer Zündspannung für einen steuerbaren Halbleitergleichrichter
DE3425137C2 (de) Elektrische Schaltungsanordnung
CH648168A5 (de) Elektronischer sender fuer gleichstromtelegraphiesysteme.
DE3516900A1 (de) Schaltungsanordnung zum sicheren ruecksetzen und starten eines mikroprozessors
DE2410926B2 (de) Verfahren zur dynamischen bremsung eines gleichstrommotors
DE4114939A1 (de) Photoelektrischer schalter
DE4129107A1 (de) Vertikalablenkschaltung
DE2819307C2 (de) Schaltungsanordnung für Teilnehmeranschlüsse in Fernsprechnebenstellenanlagen mit tonfrequenter Tastwahl
DE2220144C3 (de) Schaltanordnung mit einem Lichtschrankensystem als Signalgeber

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19900307

17Q First examination report despatched

Effective date: 19911218

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 81957

Country of ref document: AT

Date of ref document: 19921115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3875660

Country of ref document: DE

Date of ref document: 19921210

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19930704

Ref country code: AT

Effective date: 19930704

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930705

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19930731

Ref country code: CH

Effective date: 19930731

Ref country code: BE

Effective date: 19930731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
BERE Be: lapsed

Owner name: SIEMENS A.G.

Effective date: 19930731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19940201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930704

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19940331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 88110661.1

Effective date: 19940210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050704