EP1078120A1 - Fer a repasser electrique - Google Patents
Fer a repasser electriqueInfo
- Publication number
- EP1078120A1 EP1078120A1 EP99918046A EP99918046A EP1078120A1 EP 1078120 A1 EP1078120 A1 EP 1078120A1 EP 99918046 A EP99918046 A EP 99918046A EP 99918046 A EP99918046 A EP 99918046A EP 1078120 A1 EP1078120 A1 EP 1078120A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating resistor
- counter
- electric heating
- supply circuit
- electric
- 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
Links
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
- D06F75/00—Hand irons
- D06F75/08—Hand irons internally heated by electricity
- D06F75/26—Temperature control or indicating arrangements
Definitions
- the present invention relates to electric irons which include a soleplate heated by means of an electric heating resistor and a thermal regulation system, in which a control member indicates the temperature set point corresponding to the fabric to be ironed, a sensor gives the image of the temperature of the soleplate, and a management system controls the opening or closing, depending on the difference between the setpoint and the measurement, of the supply circuit of the electric heating resistance.
- a safety system which detects the position of the iron, on the heel or on the sole, and cuts off the supply of the heating resistor when the iron is left in the vertical position on the heel for a period greater than a certain limit.
- Such a system is intended to prevent accidental burns to the user or those around him, when the iron is unused and left on. It also prevents the device from being subjected to prolonged and unnecessary heating cycles, when it is unintentionally left on.
- the invention proposes to overcome these disadvan ⁇ tages and achieve irons kind of precedesM ⁇ described, with a security system without position sensor, capable of reliably detecting the stop of use of the device.
- the iron comprises a security system comprising an electronic module which: a) receives from the management system the information of closure of the supply circuit of the electric heating resistor, b) performs over a fixed time interval the sum of the supply durations, c) and opens the supply circuit of the electric heating resistor if the value thus obtained is less than a predetermined threshold value.
- the system detects a quantity representative of the quantity of heat delivered by the device, characteristic of contact of the sole with a fabric or with the ambient air.
- the electronic module comprises a switch mounted in series with the electric heating resistor, which is actuated in response to a signal produced by a first counter.
- the first counter includes a programmable integrated circuit, which has at least one supply channel, a channel for receiving a reset signal, an output channel, and generation means. 3 clock frequency activated when the iron is switched on.
- the first counter delivers an opening signal to a relay whose contacts form the in ⁇ terrupteur therefore has performed an operation of counting a period greater than "a predetermined time Tl, without receiving reset signal, T1 being greater than T2.
- the first counter simultaneously delivers an opening signal to a relay whose contacts form the switch and a blocking signal of the clock frequency generation means associated with the first counter, once it has made a counting operation of a duration greater than a predetermined time T1, without receiving a reset signal, T1 being greater than T2.
- the security system includes reset means that can be actuated by the user, so as to close the relay and reactivate the clock frequency generation means associated with the first counter, when the iron is on.
- the reset means when actuated by the user, emit a zero reset signal simultaneously to the first and second counter.
- the security system comprises an electronic module, which: 4 a) receives from the management system the information on the closing of the supply circuit of the electric heating resistor, b) counts over a fixed time interval the number of alternations between the open and closed states of the supply circuit of the electric heating resistor, and opens the supply circuit of the electric heating resistor if the number thus obtained is less than a predetermined threshold value.
- This other embodiment makes it possible, still by observing the operation of the heating resistor, to determine whether the latter is frequently used to compensate for heat losses from the soleplate, and to cut off the power supply in the opposite case, assumed to be characteristic of 'a state of non-use.
- FIG. 1 is a block diagram of a security system according to the invention.
- FIG. 2 is a block diagram of a security system according to a preferred embodiment of the invention.
- FIG. 3 is a graph linking the electrical state of the resistance and time, in a case of use and a case of non-use of an iron.
- FIG 1 there is shown the supply circuit 1 of the electric heating resistor (2) intended to heat the soleplate of an iron, the electric power being supplied by the domestic network. 5 that (3).
- the iron is either a dry type iron or a steam iron.
- the temperature of the sole is regulated by means of a control member (4), generally actuated by the user, which fixes the set temperature, a temperature sensor (5) located near the sole and which gives the image of the temperature of the soleplate, and of a management system (6), which actuates a first switch (7) placed in the supply circuit (1) of the electric heating resistor (2), function of the difference between the soleplate temperature and the setpoint temperature, so that the soleplate temperature is constantly within a determined range around the setpoint temperature.
- this regulation system simply consists of a mechanical thermostat or, in higher-end devices, includes a potentiometer and electronic regulation means.
- the supply circuit (1) of the electric heating resistor (2) comprises a second switch (8) actuated by an electronic module (9) when the security system (10) detects a state not to use the device beyond a certain limit.
- the security system (10) receives a signal (11) from the management system (6), representative of the state of the first switch (7), and therefore of the powered or unpowered state of the electric heating resistor ( 2), the second switch (8) being closed in the initial state 6 tial of the security system (10), when the device is connected to the mains.
- FIG. 2 shows a security system according to a preferred embodiment of the invention, in which the security system (10) is supplied with alternating current by the home network (3), via 'a so-called “positive" path (P) ec a so-called “neutral” path (N), said security system (10) also taking the potential at one of the terminals of the heating resistor (2) via 'a third channel (X), such that said heating resistor (2) is located between the "neutral" channel (N) and the third channel (X) •
- the security system (10) has a first two-way connector (12) for connecting the switch (8) with the heating resistor (2), the two incoming ways being the positive way (P) and the third way ( X).
- the security system (1) comprises a second two-way connector (13), which receives the reference potential by the neutral way (N) and the status information of the heating resistor (2) by the third way ( X).
- the electronic module (9) comprises two modules (14, 15) processing the electrical signals passing through the three channels (N, P, X) so as to obtain continuous signals and of admissible intensity by the components, namely respectively a reference potential (V ss ), a potential (V cc ) defining with it a supply voltage for the active components of the electronic module (9), 7 and a status information potential (x) of the heating resistor (2).
- the electronic module (9) comprises a first and a second counter (21, 22) each comprising a programmable integrated circuit, which has at least one supply path (Al, A2) set to potential (V cc ) when the device is energized, a channel for receiving a reset signal (RI, R2), an output channel (SI, S2), and clock frequency generation means supplied by a power supply channel for the clock frequency generation means (Hl, H2).
- the electronic module (9) further comprises a first bipolar transistor (16), the base of which is connected to the output channel (SI) of the first programmable integrated circuit (21) via a resistor (18), the transmitter is connected to the supply channel of the clock frequency generation means (Hl) of the first counter (21), and the collector to the reference potential line (V ss ); a second bipolar transistor (17), the base of which receives the signal corresponding to the status information potential (x) of the heating resistor, the transmitter is connected to the power supply path of the frequency generation means of clock (H2) of the second programmable integrated circuit (22), and the collector to the reference potential line (V ss ).
- a first bipolar transistor (16) the base of which is connected to the output channel (SI) of the first programmable integrated circuit (21) via a resistor (18)
- the transmitter is connected to the supply channel of the clock frequency generation means (Hl) of the first counter (21), and the collector to the reference potential line (V ss );
- the signal delivered by the first counter (21) on its output channel (SI) is transmitted to a relay (20), which executes the opening or closing of the heating resistance supply circuit, via the switch ( 8) formed by its contacts.
- a relay (20) which executes the opening or closing of the heating resistance supply circuit, via the switch ( 8) formed by its contacts.
- the second counter (22) is incremented as long as the heating resistor (2) is supplied, and realizes the cumulative supply times of said resistor.
- the second counter (22) outputs a completion signal cycle on its output channel (S2) through a resistor (19) as soon as it has performed an operation of counting a period Suselling ⁇ a higher time T2 predetermined. This end of cycle signal is directed to the reset channel (R2) of the second counter (22) and in parallel to the reset channel (RI) of the first counter (21).
- the first counter (21) If the first counter (21) has performed an opera ⁇ for counting a period longer than a predetermined time Tl completed, without having received a reset signal on the receive path (RI), it transmits on its output channel (SI) a signal to the relay (20), which opens the supply circuit of the heating resistor, this cut-off signal also realizing, via the first transistor (16), the blocking of the frequency generation means d clock of the first counter.
- SI output channel
- Reset means (23) are provided to allow the user to turn the iron back on and to reset the security system, when the latter has cut the power to the heating resistor following the detection of a state extended non-use.
- These reset means (23) when actuated by the user, emit a pulse on the reset channels (RI, R2) of the first and second counters (21, 22), which has to restore the output channel (SI) of the first counter (21) to its initial state, and thus to unlock its clock frequency generation means and to cause, by a new relay opening signal (20 ), closing the switch (8) and therefore the heating resistor supply circuit (2).
- the safety system cuts the supply circuit of the heating resistor (2), reversibly thanks to the reset means (23), if, during an interval Tl time, for example of the order of ⁇ min, the heating time of the heating resistor has not reached a limit T2, for example of the order of 25 sec, a condition characterizing a state of non-use of the device.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Irons (AREA)
- Control Of Resistance Heating (AREA)
- Control Of Temperature (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9806443 | 1998-05-12 | ||
FR9806443A FR2778679B1 (fr) | 1998-05-12 | 1998-05-12 | Fer a repasser electrique |
PCT/FR1999/001117 WO1999058754A1 (fr) | 1998-05-12 | 1999-05-11 | Fer a repasser electrique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1078120A1 true EP1078120A1 (fr) | 2001-02-28 |
EP1078120B1 EP1078120B1 (fr) | 2002-10-02 |
Family
ID=9526598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99918046A Expired - Lifetime EP1078120B1 (fr) | 1998-05-12 | 1999-05-11 | Fer a repasser electrique |
Country Status (8)
Country | Link |
---|---|
US (1) | US6649882B1 (fr) |
EP (1) | EP1078120B1 (fr) |
CN (1) | CN1201045C (fr) |
DE (1) | DE69903280T2 (fr) |
ES (1) | ES2184442T3 (fr) |
FR (1) | FR2778679B1 (fr) |
TR (1) | TR200100108T2 (fr) |
WO (1) | WO1999058754A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090166348A1 (en) * | 2007-12-28 | 2009-07-02 | Tsann Kuen (China) Enterprise Co., Ltd | Method and device for controlling an iron |
US9945066B1 (en) * | 2013-02-14 | 2018-04-17 | Google Llc | Automatic iron temperature setting based on sensor data |
CN104746323B (zh) * | 2015-04-13 | 2017-03-01 | 厦门优尔电器股份有限公司 | 一种温控方式改良的电熨斗及该电熨斗的温控方法 |
EP3502345A1 (fr) * | 2017-12-22 | 2019-06-26 | Koninklijke Philips N.V. | Dispositif de traitement de textile et dispositif portable permettant d'obtenir une classification d'un textile |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982003520A1 (fr) * | 1981-04-07 | 1982-10-14 | Robert C Franklin | Systeme de securite de detection de non utilisation d'un appareil electrique et d'interruption de l'alimentation |
FR2540148B1 (fr) * | 1983-02-02 | 1986-03-21 | Seb Sa | Dispositif electronique de securite pour fer a repasser electrique |
JPH064119B2 (ja) * | 1985-03-28 | 1994-01-19 | 株式会社日立ホームテック | スチ−ムアイロン |
JPH064120B2 (ja) * | 1985-03-28 | 1994-01-19 | 株式会社日立ホームテック | アイロン |
JPS62261399A (ja) * | 1986-05-09 | 1987-11-13 | 松下電器産業株式会社 | アイロン |
DE3703884A1 (de) * | 1987-02-09 | 1988-08-18 | Inter Control Koehler Hermann | Verzoegerungsschaltung |
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 |
JPH03173600A (ja) * | 1989-12-04 | 1991-07-26 | Matsushita Electric Ind Co Ltd | 電気アイロン |
JP2789839B2 (ja) * | 1991-04-19 | 1998-08-27 | 松下電器産業株式会社 | アイロン |
JP3259392B2 (ja) * | 1993-02-01 | 2002-02-25 | 松下電器産業株式会社 | アイロン |
-
1998
- 1998-05-12 FR FR9806443A patent/FR2778679B1/fr not_active Expired - Fee Related
-
1999
- 1999-05-11 CN CNB99808512XA patent/CN1201045C/zh not_active Expired - Fee Related
- 1999-05-11 EP EP99918046A patent/EP1078120B1/fr not_active Expired - Lifetime
- 1999-05-11 WO PCT/FR1999/001117 patent/WO1999058754A1/fr active IP Right Grant
- 1999-05-11 US US09/700,110 patent/US6649882B1/en not_active Expired - Lifetime
- 1999-05-11 DE DE69903280T patent/DE69903280T2/de not_active Expired - Lifetime
- 1999-05-11 ES ES99918046T patent/ES2184442T3/es not_active Expired - Lifetime
- 1999-05-11 TR TR2001/00108T patent/TR200100108T2/xx unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9958754A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2184442T3 (es) | 2003-04-01 |
TR200100108T2 (tr) | 2001-07-23 |
FR2778679A1 (fr) | 1999-11-19 |
FR2778679B1 (fr) | 2002-01-18 |
EP1078120B1 (fr) | 2002-10-02 |
DE69903280D1 (de) | 2002-11-07 |
US6649882B1 (en) | 2003-11-18 |
CN1309732A (zh) | 2001-08-22 |
DE69903280T2 (de) | 2003-12-04 |
CN1201045C (zh) | 2005-05-11 |
WO1999058754A1 (fr) | 1999-11-18 |
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