EP0279780A1 - Dispositif comportant un appareil électrique portatif et un socle prévu pour recevoir cet appareil - Google Patents

Dispositif comportant un appareil électrique portatif et un socle prévu pour recevoir cet appareil Download PDF

Info

Publication number
EP0279780A1
EP0279780A1 EP88810079A EP88810079A EP0279780A1 EP 0279780 A1 EP0279780 A1 EP 0279780A1 EP 88810079 A EP88810079 A EP 88810079A EP 88810079 A EP88810079 A EP 88810079A EP 0279780 A1 EP0279780 A1 EP 0279780A1
Authority
EP
European Patent Office
Prior art keywords
iron
base
circuit
trough
contact
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.)
Withdrawn
Application number
EP88810079A
Other languages
German (de)
English (en)
Inventor
Rolf Schnetz
Josef Von Rohr
Karl Hellmuth
Klaus Rück
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.)
Jura Elektroapparate AG
Original Assignee
Jura Elektroapparate Fabriken L Henzirohs 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 Jura Elektroapparate Fabriken L Henzirohs AG filed Critical Jura Elektroapparate Fabriken L Henzirohs AG
Publication of EP0279780A1 publication Critical patent/EP0279780A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F79/00—Accessories for hand irons
    • D06F79/02—Stands or supports neither attached to, nor forming part of, the iron or ironing board
    • D06F79/023—Stands or supports neither attached to, nor forming part of, the iron or ironing board with means for supplying current to the iron
    • D06F79/026—Stands or supports neither attached to, nor forming part of, the iron or ironing board with means for supplying current to the iron for cordless irons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part

Definitions

  • the invention relates to a device according to the preamble of patent claim 1.
  • cordless irons There are electrical devices, e.g. known as cordless irons.
  • Known irons of this type do not have a connecting cable and are inserted into a receiving location of a base for heating.
  • the electrical connection of the alternating current network to the iron takes place via plug pins fixed to the iron and contact sleeves arranged in the base. Correct insertion of the pins into the contact sleeves requires precise alignment of the iron to be inserted into the receiving location of the base, which makes the work of the iron user more difficult.
  • the device according to the invention is characterized by the features stated in the characterizing part of patent claim 1.
  • Fig. 1 shows a base 1 with a receiving point 2 of the inventive device in plan view and in Fig. 2, the base 1 is shown in section and on a larger scale. 2, an iron 3, which is only partially dash-dotted, is inserted into the receiving point 2.
  • the receiving point 2 is formed by a pan 5 which can be pivoted about an axis 4 arranged in the base 1.
  • five openings 8 are arranged in a row for the passage of five contact bolts 9-13, of which the contact bolt 9 is only shown in FIG. 5 is.
  • ribs 15 for supporting the sole 16 of the into the receiving point 2 are inserted set iron 3 arranged.
  • Two side walls 17 adjoin the two walls 7 and 14. From each of the side walls 17, a projection 18 extending transversely to the ribs 15 projects into the interior of the tub 5.
  • the tabs 18 serve to center the iron 3 during its insertion into the receiving point 2 or the tub 5, so that the with the Back 6 of the iron 3 arranged flush in a row, only indicated in FIG. 4, contact surfaces 19-23 are aligned as precisely as possible with respect to the contact pins 9 to 13 when the iron 3 is inserted in the receiving point 2.
  • a pawl 26 In the wall 7 there are slots 24 through which, when the iron 3 is inserted into the tub 5, protrusions 25 projecting from the rear side 6 of the iron 3 engage and actuate a pawl 26, see FIG. 2.
  • the pawl 26 is about an axis 27 pivotally mounted in the base 1 and a spring element 2g fastened to the base 28 of the base 1 acts on the pawl 26 in such a way that it would move clockwise with respect to FIGS. 2 and 3 if no other force acts on the pawl.
  • the pawl 26 actuates a microswitch 30 with a double switch 31, 31 (FIG. 4), which double switches are closed when the iron 3 is inserted into the tub 5.
  • the pawl 26 in the position shown in FIG. 3 prevents the tub 5 from being pressed down when there is no iron in it.
  • the depression of the tub is prevented because a part 33 of the wall 7 abuts the angled arm of the pawl 26.
  • a leaf spring 35 is fastened to an inner inclined wall 34 of the base 1, which is preloaded in such a way that the trough 5, relative to FIG. 2, is pivoted counterclockwise about the axis 4 until the upper part of the tub 5 rests against a stop surface 36 of the base 1 when there is no iron in the tub 5.
  • a slide 39 is slidably mounted in a recess 38.
  • a locking bolt 41 is fastened to an angular part 40 of the slide 39.
  • the slide 39 is in the retracted position in FIGS. 1 and 3. Only when the device is not required, the slide 39 can be moved into the position shown in FIG. 2, the locking bolt 41 passing through an opening 42 in the wall 7 of the tub 5 and into a blind hole, not shown, in the rear of the iron 3 protrudes, whereby the same is positively connected to the base 1, and the entire device can be supplied by gripping the handle of the iron 3.
  • FIG. 5 shows that behind each of the openings 8 in the wall 7 there is a groove 43 with a dovetail cross section.
  • a closure piece 44 is arranged displaceably against the return force of a compression spring 45.
  • Openings 47 are provided in an intermediate wall 46 in the interior of the base 1, one of which is visible in FIG. 5 and through which the contact pin 9 extends.
  • a leaf spring 48 is riveted to the inner end of the contact pin 3 and, as can be seen in FIG. 2, is fastened to the intermediate wall 46 with the aid of a press adjuster 49.
  • the leaf spring 48 presses the contact pin 9 in the direction of the tub 5, so that when the iron is not inserted into the tub 5, it contacts an inclined run-up surface 49 in one end region of the groove 43 and when the iron is inserted in the tub 5 on the th contact surface 19 rests on the back 6 of the iron.
  • the closure piece 44 has at the end adjacent to the contact pin 9 an extension 50 against which the contact pin 9 abuts when the iron 3 is inserted into the tub 5 in order to push back the part of the closure piece 44 which closes the opening 8, so that the opening 8 for the passage the associated contact pin 9 is released.
  • connection terminals 51, 52 and 53 to which a three-core cable (not shown) with a plug for connecting the same to the AC network is connected.
  • connection terminals 51 and 52 Via a double-pole mains switch 54, the connection terminals 51 and 52 can be connected to a pair of conductors having an input section 55, a middle section 56 and an output section 57.
  • a control lamp 58 is connected to the input section 55 and lights continuously as long as the power switch 54 is switched on.
  • the control lamp 58 is housed in the power switch 54 itself.
  • the second pawl 26 is also assigned a double switch 31 ⁇ and 32 ⁇ , which is connected in series with the first double switch 31 and 32 to increase safety.
  • An electronic control circuit 59 is accommodated in the base 1 and is arranged on a printed circuit board 60.
  • the control circuit 59 draws its energy from a transformer 61, the primary winding of which is connected to the central section 56 of the pair of conductors.
  • the control circuit 59 controls a relay 63, which has two make contacts 64.
  • the make contacts 64 connect the middle section 56 to the output section 57 of the pair of conductors when the relay 63 is energized. This is the case when the temperature sensing resistor 62 or the sole 16 of the iron 3 has been heated to a predetermined temperature by a heating resistor 65.
  • a thermal contact 67 for interrupting the supply of energy to the heating resistor 65 is arranged in the conductor 66, which connects the heating resistor 65 to the contact surface 20, when the temperature of the sole 16 of the iron 3 exceeds a maximum value.
  • FIG. 6 shows the block diagram of the control circuit 59.
  • Two connecting terminals 68 connected to the secondary winding of the transformer 61 are connected to a rectifier bridge circuit 69 for generating the supply voltage for the control circuit 59.
  • the rectified output voltage of the rectifier bridge circuit 69 is kept at a constant value by a voltage regulator 70.
  • the constant DC voltage is supplied to the temperature sensing resistor 62 via a resistor 71, a connecting terminal 72, the contact pin 11 and the contact surface 21.
  • the other connection of the temperature sensing resistor 62 is connected via the contact surface 22, the contact pin 12 and the connecting terminal 73 to the negative feed conductor 74 when the iron 3 is inserted into the tub 5.
  • the resistor 71 and the temperature sensing resistor 62 together form a voltage divider and the voltage occurring at the connection terminal 72 is fed to an operational amplifier 75 which is connected as a non-inverting amplifier and which is switched off gear 76 generates a voltage proportional to the temperature of the temperature sensing resistor 62.
  • This output voltage is fed to a first input of an operational amplifier 77 connected as a comparator, in order to compare said output voltage with a reference voltage that can be set by means of a setpoint adjuster 78.
  • the operational amplifier 77 generates an output signal when the output voltage of the operational amplifier 75 is lower than the reference voltage. With this output signal, the relay 63 is excited, which is connected to terminals 79 and 80.
  • the temperature monitored by the temperature sensing resistor 62 exceeds the temperature set at the setpoint adjuster 78, the voltage at the output 76 of the operational amplifier 75 becomes greater than the reference voltage. The result of this is that the operational amplifier 77 no longer emits an output signal, as a result of which the relay 63 is de-energized and the normally open contacts 64 are opened. As a result, the energy supply to the heating resistor 65 is prevented and the sole 16 of the iron is not heated above the temperature set on the setpoint adjuster 78.
  • the contact pins 9 and 10 are longer than the contact pins 11 and 12, so that when the iron 3 is removed from the tub 5, the electrical connection between the contact pins 11 and 12 and the associated contact surfaces 21 and 22 is interrupted before the contact surfaces 19 and 19, respectively 20 Lift off the contact bolts 9 or 10.
  • the voltage at the connection terminal 72 quickly rises to a value that is greater than the reference voltage set on the setpoint adjuster 78. This causes relay 63 to drop out and that Opening the work contacts 64 so that the output section 57 of the pair of conductors is dead before the contact surfaces 19 and 20 separate from the contact bolts 9 and 10; this avoids any sparking.
  • a red light-emitting diode 81 is connected to the output of the operational amplifier 77 and lights up as long as the relay 63 is energized. This is a sign that the temperature set on the setpoint adjuster 78 has not yet been reached.
  • an inverter 82 is connected to the output of the operational amplifier 77, the output of which is connected to a green light-emitting diode 83.
  • the operational amplifier 77 no longer generates an output signal after reaching the temperature set at the setpoint adjuster 78, the red light-emitting diode 81 goes out and the green light-emitting diode 83 lights up to indicate that the desired temperature has been reached and the iron 3 is ready for smoothing.
  • connection terminal 63 which can be connected to the neutral conductor of the AC network via the mains cable (not shown), is connected to the metallic part of the iron 3 via two contact points 84 if the same is in the tub 5.
  • the contact points 84 mentioned are arranged on the lugs 18 by contact springs which are electrically connected to one another and to the connecting terminal 53 via a web 85.
  • Fig. 7 shows the basic circuit diagram of a second embodiment of the inventive device.
  • the base is labeled 1 ⁇ and the iron 3 ⁇ . Further components which perform the same function as the components shown in FIG. 4, are provided with the same reference numerals.
  • a thyristor 86 is arranged, which is controlled by an electronic control circuit 59 ⁇ . It comprises an HF generator 87, the frequency of which can be set by a setpoint adjuster 88.
  • an induction coil 89 is provided, which is connected to the HF generator 87.
  • the induction coil 89 is arranged in the base 1 ⁇ such that it is concentric and adjacent to an induction coil 90 arranged in the iron 3 ⁇ .
  • the induction coil 90 is connected to a transceiver circuit 91, which comprises a supply circuit 92 and a converter circuit 93.
  • the supply circuit 92 is connected to the induction coil 90 and serves to rectify the AC voltage induced in the coil 90.
  • the rectified voltage is the supply voltage for the converter circuit 93, which is also connected to the coil 90 and is connected to the temperature sensing resistor 62.
  • the converter circuit 93 generates a reference AC voltage, the frequency of which is dependent on the temperature of the temperature sensing resistor 62.
  • the reference alternating voltage is transmitted back to the base 1 ⁇ by means of the induction coils 90 and 89 and fed to a frequency comparison circuit 94, which is also fed the frequency generated by the RF generator 87.
  • the frequency comparison circuit 94 compares the two frequencies; if both frequencies are the same, this means that the temperature of the soleplate 16 of the iron 3 ⁇ has reached the value set at the set point adjuster 88 and the frequency comparison circuit 94 blocks the thyristor 86, so that the heating resistor 65 of the iron 3 ⁇ has none more energy is supplied.
  • the light-emitting diodes 81 and 83 are also controlled by the frequency comparison circuit 94.
  • the highest temperature value at the end of heating is stored in a capacitor as a voltage. This is used for later comparison with the actual value, which is also applied to the temperature sensing resistor as a voltage.
  • the comparison measurement is carried out in a linear manner during the cooling phase, this comparison being carried out in cyclical operation in order to save electricity.
  • the linear comparator circuit is powered by an electrolytic capacitor.
  • the voltage-frequency conversion and the modulation level are passive in the ironing mode. These are only active during charging when the iron is in the tub 5.
  • the transmitter-receiver circuit in the iron is supplied with energy directly by the HF generator 87 and the induction coils 89 and 90.
  • an acoustic alarm is triggered by means of an electroacoustic transducer 95. Since the voltage stored in the storage electrolyte inevitably decreases during the cooling phase, the voltage stored in the setpoint storage capacitor must be reduced in a time-linear manner so that it remains representative as the reference voltage. This happens with a defined leakage current. Since a voltage discharge has a quasi-identical characteristic as a thermal discharge, a ratiometric measurement can nevertheless be carried out here.
  • FIG. 8 shows the basic circuit diagram of a third exemplary embodiment of the device according to the invention.
  • the base is labeled 1 ⁇ and the iron 3 ⁇ .
  • Other components, which Perform the same functions as the components shown in FIG. 4 are provided with the same reference numerals.
  • the pair of conductors comprising the input section 55, the middle section 56 and the output section 57, the double-pole mains switch 54, the control lamp 58, the relay 63 with the two working contacts 64 and the microswitch 30 with the double contacts 31 and 32 is arranged.
  • the contact pins 11 to 13, according to the exemplary embodiment according to FIG. 4 in the exemplary embodiment according to FIG.
  • a protective tube contact 96 is arranged in the base 1 ⁇ , which protective tube 96 is located in the circuit of the relay 63.
  • a permanent magnet 97 is arranged in the rear 6 of the iron 3 ⁇ .
  • the permanent magnet 97 comes into the vicinity of the protective tube contact 96, as a result of which it closes and excites the relay 63. If the iron 3 ⁇ is lifted from the base 1 ⁇ , the relay 63 is automatically de-energized and the energy supply to the iron 3 ⁇ is prevented.
  • an electrical control circuit 98 is housed, which includes the setpoint 88 and an alarm circuit 99.
  • This arrangement enables the simplest execution, since the setpoint values to be compared with one another are contained in the same device with the actual value.
  • the same circuit can also be built into an iron that is powered by a power cord, and the acoustic alarm circuit can be dropped.
  • a signal lamp 100 arranged in the iron indicates the heating status by flashing and the setpoint reached by continuous burning. After the iron has been lifted off, the setpoint and the actual value are compared with one another and when the actual value falls below a predetermined minimum value, an alarm signal is triggered by the alarm circuit 99 to indicate that the iron is reinserted into the tub 5 of the base 1 ⁇ for reheating shall be.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
EP88810079A 1987-02-10 1988-02-10 Dispositif comportant un appareil électrique portatif et un socle prévu pour recevoir cet appareil Withdrawn EP0279780A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH47887A CH678866A5 (fr) 1987-02-10 1987-02-10
CH478/87 1987-02-10

Publications (1)

Publication Number Publication Date
EP0279780A1 true EP0279780A1 (fr) 1988-08-24

Family

ID=4187922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810079A Withdrawn EP0279780A1 (fr) 1987-02-10 1988-02-10 Dispositif comportant un appareil électrique portatif et un socle prévu pour recevoir cet appareil

Country Status (3)

Country Link
EP (1) EP0279780A1 (fr)
CH (1) CH678866A5 (fr)
DE (1) DE8706411U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0379259A1 (fr) * 1989-01-20 1990-07-25 Koninklijke Philips Electronics N.V. Fer à repasser électrique
US5074066A (en) * 1989-08-17 1991-12-24 Matsushita Electric Industrial Co., Ltd. Cordless iron having water and electrical supplies responsive to an iron rest
US5117092A (en) * 1989-07-20 1992-05-26 Matsushita Electric Industrial Co., Ltd. Cordless iron
GB2228374B (en) * 1988-12-06 1993-02-17 Bosch Siemens Hausgeraete Ironing apparatus.

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3727247A1 (de) * 1987-08-15 1989-02-23 Stephan Vandaele Elektrische haushaltgeraeteanordnung
JP2574318B2 (ja) * 1987-08-28 1997-01-22 松下電器産業株式会社 コ−ドレスアイロン
DE3800921A1 (de) * 1988-01-14 1989-07-27 Joseph Dikoff Kabelloses buegeleisen
GB8816089D0 (en) * 1988-07-06 1988-08-10 Housemate Appliances Ltd Pressing apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE546168A (fr) * 1955-10-19
DE2140489A1 (de) * 1971-08-12 1973-02-22 Theodor Orbach Buegeleisen mit staender
US4528429A (en) * 1984-03-02 1985-07-09 Dart Industries Inc. Electrical switch-plug assembly with baffle
DE3517830A1 (de) * 1985-05-17 1986-11-20 Geka-Werk Reinhold Klein KG, 3573 Gemünden Anschlussgeraet fuer ein schnurloses elektrogeraet
EP0210538A2 (fr) * 1985-07-23 1987-02-04 Braun Aktiengesellschaft Dispositif pour l'alimentation en courant d'un appareil électrique d'utilisation personnelle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE546168A (fr) * 1955-10-19
DE2140489A1 (de) * 1971-08-12 1973-02-22 Theodor Orbach Buegeleisen mit staender
US4528429A (en) * 1984-03-02 1985-07-09 Dart Industries Inc. Electrical switch-plug assembly with baffle
DE3517830A1 (de) * 1985-05-17 1986-11-20 Geka-Werk Reinhold Klein KG, 3573 Gemünden Anschlussgeraet fuer ein schnurloses elektrogeraet
EP0210538A2 (fr) * 1985-07-23 1987-02-04 Braun Aktiengesellschaft Dispositif pour l'alimentation en courant d'un appareil électrique d'utilisation personnelle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228374B (en) * 1988-12-06 1993-02-17 Bosch Siemens Hausgeraete Ironing apparatus.
EP0379259A1 (fr) * 1989-01-20 1990-07-25 Koninklijke Philips Electronics N.V. Fer à repasser électrique
US5117092A (en) * 1989-07-20 1992-05-26 Matsushita Electric Industrial Co., Ltd. Cordless iron
US5074066A (en) * 1989-08-17 1991-12-24 Matsushita Electric Industrial Co., Ltd. Cordless iron having water and electrical supplies responsive to an iron rest

Also Published As

Publication number Publication date
DE8706411U1 (fr) 1987-07-09
CH678866A5 (fr) 1991-11-15

Similar Documents

Publication Publication Date Title
EP3453559B1 (fr) Câble de charge et adaptateur permettant le chargement électrique d'un
DE2616231C3 (de) Erdschlußschutzvorrichtung
EP0666805B1 (fr) Procede de mise en charge automatique sans contact
DE69838570T2 (de) Verbinder mit Kupplungserkennungsmitteln
EP0279780A1 (fr) Dispositif comportant un appareil électrique portatif et un socle prévu pour recevoir cet appareil
EP2651687B1 (fr) Dispositif de transfert inductif d'énergie électrique
DE7711514U1 (de) Werkzeug zum loesen einer mit einer markierung versehenen befestigungsvorrichtung
DE3928810A1 (de) Schaltungsanordnung zum speisen einer last
EP0004035B1 (fr) Outil de soudage avec régulation de la température
DE19907721A1 (de) Batteriebetriebene Vorrichtung zum Krümmen der Augenwimpern
EP0361072A1 (fr) Grille-pain électrique
DE3736849C2 (fr)
EP0026939A1 (fr) Fer à repasser à accumulateur de chaleur
DE2539065C3 (de) Aufladeeinrichtung fur eine elektrische Speicherheizung
DE2526877A1 (de) Induktionsheizgeraet
DE202010016586U1 (de) Vorrichtung zur induktiven Übertragung elektrischer Energie
DE19704130A1 (de) Wechselstromadapter
EP0101017A2 (fr) Commutateur temporisateur électronique
DE10254698A1 (de) Netzstecker
DE4127156A1 (de) Loetkolben mit temperaturregler und bedienelemente im griff integriert
EP0411281A1 (fr) Borne électrique
DE890399C (de) Kochplattenregler
DE3428989C2 (fr)
DE2851648C2 (fr)
DE3918927C2 (de) Bügeleisen zur wahlweisen Befestigung eines Gerätesteckers an einer Bügeleisenabgabe und an dem Bügeleisen

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: A1

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

17P Request for examination filed

Effective date: 19890127

17Q First examination report despatched

Effective date: 19900831

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19910420