EP1482764A1 - Elektrische Schaltungsanordnung in einem Haarpflegegerät - Google Patents
Elektrische Schaltungsanordnung in einem Haarpflegegerät Download PDFInfo
- Publication number
- EP1482764A1 EP1482764A1 EP04010958A EP04010958A EP1482764A1 EP 1482764 A1 EP1482764 A1 EP 1482764A1 EP 04010958 A EP04010958 A EP 04010958A EP 04010958 A EP04010958 A EP 04010958A EP 1482764 A1 EP1482764 A1 EP 1482764A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- resistor
- circuit arrangement
- electric motor
- heating
- 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.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/22—Helmets with hot air supply or ventilating means, e.g. electrically heated air current
- A45D20/30—Electric circuitry specially adapted for hair drying devices
Definitions
- the invention relates to an electrical circuit arrangement in a hair care device, with an electric motor that can be connected to a voltage via a resistor, and with a heating resistor, which can also be connected to the voltage, the Electric motor and the resistor form a series circuit, a switch and the Heating resistor form a series circuit and the two series circuits in parallel are switched.
- An electric hair care device such as a hair dryer
- two power levels are provided. It is desirable at these two performance levels not only design the heating output of the hair dryer differently, but also the speed of the same. This is usually achieved by adding a main switch S1 two further switches S2 and S3 are provided, one Switch for switching the heating power and another switch for switching the speed. Obviously, this involves an increased outlay on circuitry.
- the object of the invention is to provide an electrical circuit arrangement, in particular for a To create hair care device that has two performance levels on the one hand, on the other hand but requires less circuitry.
- the electric motor When the switch is open, the electric motor is connected to the series resistor and the heating resistor is supplied with current via the further electrical component. at When the switch is closed, an additional current flows through the switch to the electric motor and the heating resistor is direct, that is, not via the further electrical component powered. Thus, with the switch closed, there is an increased speed of the Electric motor and an increased heating power of the heating resistor.
- Switching between the two power levels is therefore essential reduced circuitry effort achieved.
- only one will be left Switches for both changes, i.e. for changing the speed of the electric motor, as well as for switching the heating power of the heating resistor.
- a further electrical component is a Resistor or a capacitor or a diode is provided. Especially through the Use of the capacitor or the diode becomes the power loss of the invention electrical circuitry reduced.
- two heating resistors are provided, and two diodes are provided as a further electrical component.
- FIG. 1 shows a first electrical circuit arrangement 10, which in particular with an electric hair dryer or an electric curling iron or more generally is usable with an electrical hair care device.
- An electric motor M in particular a blower motor, is in the circuit arrangement 10 switched the middle branch of a diode bridge consisting of four diodes D1, D2, D3, D4.
- the diodes D2, D1 on the one hand and the diodes D4, D3 on the other hand are thus in Forward direction connected in parallel to the electric motor M.
- the common connection point of the two diodes D1, D2 is via an on / off switch S1 connected to a first pole 11.
- the common connection point of the two diodes D3, D4 is via two resistors R2a, R2b connected in series with a second pole 12 connected.
- the two poles 11, 12 are for connection to an AC voltage, in particular to a 220V mains voltage.
- the two resistors R2a, R2b are in particular a divided one Pre-resistance for the electric motor M.
- the common connection point of the two diodes D1, D2 is still via a heating resistor R1 and a series-connected switch S2 connected to the second pole 12.
- the electric motor M and the two resistors R2a, R2b on the one hand and the switch S2 and the heating resistor R1 on the other hand thus form a parallel connection.
- connection point of the heating resistor R1 and the switch S2 is via a resistor R3 with the connection point of the two resistors R2a connected in series, R2b connected.
- the on / off switch S1 When the on / off switch S1 is on and the switch S2 is open, it flows an alternating current via the diode bridge and thus via the electric motor M and via the two resistors R2a, R2b.
- the electric motor M is thus switched on.
- the speed of the Electric motor M depends on the current flowing through the two resistors R2a, R2b and thus on the values of these two resistors R2a, R2b.
- a current flows through the heating resistor R1 and the resistors R2a, R3.
- the heat output of the heating resistor R1 depends on that via the heating resistor R1 flowing current and thus from the values of the heating resistor R1 and the values of resistors R2a, R3.
- the circuit arrangement 10 is thus one first switched to a second power level, the speed in the second stage of the electric motor M and the heating power of the heating resistor R1 is increased.
- the speed of the electric motor M and the heating power of the heating resistor R1 in the two stages can by appropriate dimensioning of the resistors R1, R2a, R2b, R3 can be set.
- FIG. 2 shows a second circuit arrangement 15, which largely corresponds to the Circuit arrangement 10 of Figure 1 corresponds. Similar components are therefore marked with the same reference numerals.
- circuit arrangement 15 of FIG. 2 is essentially the same as that Operation of the circuit arrangement 10 of Figure 1 match. As in Figure 1, so the circuit arrangement 15 of FIG. 2 is also closed by closing the switch S2 switched from a first to a second power stage, the second stage Speed of the electric motor M and the heating power of the heating resistor R1 is increased.
- capacitor C1 has no influence on the heating power of heating resistor R1 with switch S2 open or on the speed of the electric motor M with the switch S2 closed.
- capacitor C1 represents a short circuit.
- the speed of the electric motor M and The heating power of the heating resistor R1 in the two power levels can be changed a corresponding dimensioning of the resistors R1, R2a, R2b can be set.
- FIG. 3 shows a third circuit arrangement 16, which largely corresponds to the Circuit arrangement 10 of Figure 1 corresponds. Similar components are therefore marked with the same reference numerals.
- the forward direction of the diode D5 is in the direction of the two resistors R2a, R2b connected.
- switch S2 When switch S2 is open, an alternating current flows over the diode bridge and thus over the electric motor M and via the two resistors R2a, R2b.
- the electric motor M is switched on with it.
- the speed of the electric motor M depends on the two resistors R2a, R2b current flowing and thus from the values of these two resistors R2a, R2b.
- one of the two half-waves of the alternating current flows through the heating resistor R1, diode D5 and resistor R2a.
- the heat output of the heating resistor R1 therefore depends on the values of the heating resistor R1 and the resistor R2a from.
- the circuit arrangement 16 is thus one first switched to a second power level, the speed in the second stage of the electric motor M and the heating power of the heating resistor R1 is increased.
- the speed of the electric motor M and the heating power of the heating resistor R1 in the two Levels can be dimensioned accordingly by dimensioning the resistors R1, R2a, R2b can be set. With this dimensioning, however, it should also be noted that that with the heating power of the heating resistor R1 when the switch S2 is open, only one Half wave of the alternating current comes into effect, and that correspondingly when the Switch S2 also applies to the speed of the electric motor M.
- FIG. 4 shows a fourth circuit arrangement 17, which largely corresponds to the Circuit arrangement 16 of Figure 3 corresponds. Similar components are therefore marked with the same reference numerals.
- the two diodes D5, D6 are in series between the connection point of the two resistors R2a, R2b and the connection point of the heating resistor R1 b and the switch S2 connected.
- the forward direction of the diodes D5, D6 is in the direction of the two resistors R2a, R2b switched.
- the two heating resistors R1a, R2b are connected in parallel.
- the heating resistor R1 a is connected to the connection point of the two diodes D5, D6 and the heating resistor R1 b is connected to the switch S2.
- switch S2 When switch S2 is open, an alternating current flows over the diode bridge and thus over the electric motor M and via the two resistors R2a, R2b.
- the electric motor M is switched on with it.
- the speed of the electric motor M depends on the two resistors R2a, R2b current flowing and thus from the values of these two resistors R2a, R2b.
- one of the two half-waves of the alternating current flows through the two heating resistors R1a, R1b, diodes D5, D6 and resistor R2a.
- the heat output of the heating resistors R1a, R1b thus depends on the values of the heating resistors R1a, R1b and resistor R2a.
- the circuit arrangement 16 is thus one first switched to a second power level, the speed in the second stage of the electric motor M and the heating power of the heating resistors R1a, R1b is increased.
- the speed of the electric motor M and the heating power of the heating resistors R1a, R1b in The two stages can be dimensioned appropriately for the resistors R1a, R1b, R2a, R2b can be set. With this dimensioning, however, is additional Please note that the heating power of the heating resistors R1a, R1b is only one Half wave of the alternating current comes into effect, and that correspondingly when the Switch S2 also applies to the speed of the electric motor M.
- the described procedure can also be carried out in a corresponding manner for a third performance level or in general for other power levels of the speed of the electric motor M and the heating power of the heating resistor (s) R1, R1 a, R1 b are applied.
- the described circuit arrangements 10, 16, 17, 18 can thus with the switch S2 with regard to the speed of the electric motor M and the heating power of the heating resistor (s) R1, R1 a, R1 b can be switched back and forth between two power levels.
Abstract
Description
- Figur 1
- zeigt ein schematisches Schaltbild eines ersten Ausführungsbeispiels einer erfindungsgemäßen elektrischen Schaltungsanordnung,
- Figur 2
- zeigt ein schematisches Schaltbild eines zweiten Ausführungsbeispiels einer erfindungsgemäßen elektrischen Schaltungsanordnung,
- Figur 3
- zeigt ein schematisches Schaltbild eines dritten Ausführungsbeispiels einer erfindungsgemäßen elektrischen Schaltungsanordnung, und
- Figur 4
- zeigt ein schematisches Schaltbild eines vierten Ausführungsbeispiels einer erfindungsgemäßen elektrischen Schaltungsanordnung.
Claims (9)
- Elektrische Schaltungsanordnung (10, 15, 16, 17) in einem Haarpflegegerät, mit einem Elektromotor (M), der über einen Widerstand (R2a, R2b) an eine Spannung anschließbar ist, und mit einem Heizwiderstand (R1, R1a, R1b), der ebenfalls an die Spannung anschließbar ist, wobei der Elektromotor (M) und der Widerstand (R2a, R2b) eine Serienschaltung bilden, wobei ein Schalter (S2) und der Heizwiderstand (R1, R1a, R1 b) eine Serienschaltung bilden und wobei die beiden Serienschaltungen parallel geschaltet sind, dadurch gekennzeichnet, dass der Verbindungspunkt des Schalters (S2) und des Heizwiderstandes (R1, R1a, R1b) über ein weiteres elektrisches Bauelement mit dem Widerstand (R2a, R2b) verbunden ist.
- Schaltungsanordnung (10) nach Anspruch 1, dadurch gekennzeichnet, dass als weiteres elektrisches Bauelement ein Widerstand (R3) vorgesehen ist (Figur 1).
- Schaltungsanordnung (15) nach Anspruch 1, dadurch gekennzeichnet, dass als weiteres elektrisches Bauelement ein Kondensator (C1) vorgesehen ist (Figur 2).
- Schaltungsanordnung (16) nach Anspruch 1, dadurch gekennzeichnet, dass als weiteres elektrisches Bauelement eine Diode (D5) vorgesehen ist (Figur 3).
- Schaltungsanordnung (16) nach Anspruch 4, dadurch gekennzeichnet, dass die Durchlassrichtung der Diode (D5) in Richtung zu dem Widerstand (R2a, R2b) geschaltet ist.
- Schaltungsanordnung (17) nach Anspruch 1, dadurch gekennzeichnet, dass zwei Heizwiderstände (R1a, R1b) vorgesehen sind, und dass als weiteres elektrisches Bauelement zwei Dioden (D5, D6) vorgesehen sind (Figur 4).
- Schaltungsanordnung (17) nach Anspruch 6, dadurch gekennzeichnet, dass die beiden Heizwiderstände (R1a, R1b) parallel geschaltet sind, und dass die Durchlassrichtungen der beiden Dioden (D5, D6) in Richtung zu dem Widerstand (R2a, R2b) geschaltet sind.
- Schaltungsanordnung (10, 15, 16, 17) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Widerstand (R2a, R2b) geteilt ist, und dass das weitere elektrische Bauelement mit dem Verbindungspunkt des geteilten Widerstands (R2a, R2b) verbunden ist.
- Schaltungsanordnung (10, 15, 16, 17) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Elektromotor (M) im mittleren Zweig einer Diodenbrücke angeordnet ist, und dass der Elektromotor (M) und der Heizwiderstand (R1, R1a, R1b) an eine Wechselspannung anschließbar sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10324510 | 2003-05-28 | ||
DE10324510A DE10324510A1 (de) | 2003-05-28 | 2003-05-28 | Elektrische Schaltungsanordnung in einem Haarpflegegerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1482764A1 true EP1482764A1 (de) | 2004-12-01 |
EP1482764B1 EP1482764B1 (de) | 2007-02-28 |
Family
ID=33103649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04010958A Expired - Lifetime EP1482764B1 (de) | 2003-05-28 | 2004-05-07 | Elektrische Schaltungsanordnung in einem Haarpflegegerät |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1482764B1 (de) |
AT (1) | ATE355721T1 (de) |
DE (2) | DE10324510A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202006020406U1 (de) * | 2006-12-01 | 2008-07-31 | Göckeritz, Stephan | Mobiles Heißluft-Warmluftgerät zum Betrieb mit wiederaufladbaren Batterien |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4003388A (en) * | 1976-04-01 | 1977-01-18 | General Electric Company | Hair dryer variable control |
NL8005531A (nl) * | 1980-10-07 | 1982-05-03 | Philips Nv | Handhaardroger. |
GB2091503A (en) * | 1981-01-15 | 1982-07-28 | Braun Ag | Electric circuit for the multistage operation of heating resistors |
US6035097A (en) * | 1996-08-26 | 2000-03-07 | Braun Gmbh | Electrical heating unit with two concentrically disposed heating elements |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2735420A1 (de) * | 1977-08-05 | 1979-02-15 | Otto Huebner | Elektrisches haartrocken-geraet mit schonschalter |
-
2003
- 2003-05-28 DE DE10324510A patent/DE10324510A1/de not_active Ceased
-
2004
- 2004-05-07 EP EP04010958A patent/EP1482764B1/de not_active Expired - Lifetime
- 2004-05-07 DE DE502004003003T patent/DE502004003003D1/de not_active Expired - Lifetime
- 2004-05-07 AT AT04010958T patent/ATE355721T1/de active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4003388A (en) * | 1976-04-01 | 1977-01-18 | General Electric Company | Hair dryer variable control |
NL8005531A (nl) * | 1980-10-07 | 1982-05-03 | Philips Nv | Handhaardroger. |
GB2091503A (en) * | 1981-01-15 | 1982-07-28 | Braun Ag | Electric circuit for the multistage operation of heating resistors |
US6035097A (en) * | 1996-08-26 | 2000-03-07 | Braun Gmbh | Electrical heating unit with two concentrically disposed heating elements |
Also Published As
Publication number | Publication date |
---|---|
DE502004003003D1 (de) | 2007-04-12 |
DE10324510A1 (de) | 2004-12-30 |
ATE355721T1 (de) | 2006-03-15 |
EP1482764B1 (de) | 2007-02-28 |
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