US20040140191A1 - Fire protection device for domestic appliances - Google Patents

Fire protection device for domestic appliances Download PDF

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Publication number
US20040140191A1
US20040140191A1 US10/734,054 US73405403A US2004140191A1 US 20040140191 A1 US20040140191 A1 US 20040140191A1 US 73405403 A US73405403 A US 73405403A US 2004140191 A1 US2004140191 A1 US 2004140191A1
Authority
US
United States
Prior art keywords
domestic appliance
protection device
fire protection
gas sensor
fault current
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.)
Abandoned
Application number
US10/734,054
Other languages
English (en)
Inventor
Helmut Jerg
Stefan Staedel
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Assigned to BSH BOSCH UND SIEMENS HAUSGERATE GMBH reassignment BSH BOSCH UND SIEMENS HAUSGERATE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JERG, HELMUT, STAEDEL, STEFAN A.
Publication of US20040140191A1 publication Critical patent/US20040140191A1/en
Priority to US12/721,590 priority Critical patent/US8958191B2/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways

Definitions

  • the invention relates to a fire protection device for domestic appliances.
  • domestic appliances which have several power consumers, such as for example motors, heaters etc., are usually not subjected to individual checks on their electrical safety.
  • domestic appliances In order to avoid damage to the domestic appliances, as a result of excess current, domestic appliances generally have safety devices, which have for example a safety button made of porcelain or ceramic, which glows when a specific current strength is reached and thus protects the domestic appliance from further damage, in particular smouldering fires or the like.
  • DE 38 09 754 A1 discloses a device with a container for a fire retardant substance for extinguishing such fires, which container opens automatically in the presence of a flame or when the ambient temperature rises above a limit parameter, for the purpose of pouring the fire retardant substance indirectly or directly onto the parts of the appliance endangered by fire or which are to be protected therefrom.
  • the containers preferably several of them, in each case have cells containing fire retardant substance and which effectively have boreholes in the floor region, which are occluded by a protective film or a membranous skin, for example, which bursts at a preset temperature to open up the boreholes and in the process let the fire retardant substance escape.
  • the object of the present invention is therefore to provide a fire protection device for domestic appliances, which already at the outset of a malfunction which could potentially result in the domestic appliance catching fire, said device carries out measures which can protect the domestic appliance from further damage, and prevent the danger of fire.
  • the fire protection device for domestic appliances With the fire protection device for domestic appliances according to the present invention the spread of a smouldering fire, caused by electrical failures, is prevented, since gases resulting from smouldering are detected by at least one gas sensor, and a signal is generated from a certain quantity of control gas, for example carbon monoxide (CO) and/or chlorine (CI), is present inside the domestic appliance, which preferably results in disconnection of the electricity supply inside the domestic appliance.
  • CO carbon monoxide
  • CI chlorine
  • Apart from the gas sensor at least one fault current circuit breaker is also put in place, which initiates a, preferably all-pole, disconnection of the electricity supply of the domestic appliance as soon as a fault current occurs in one of the electrical conductors in the domestic appliance, and thus for example prevents heating and igniting of synthetic materials.
  • the fault current circuit breaker is integrated into the mains plug of the domestic appliance, such that the size of the mains plug is only slightly larger than a standard mains plug. Yet it can prove effective to arrange the fault current circuit breaker in the domestic appliance such that it fulfils a function of main switch, that is, the domestic appliance can be switched on and off by way of the fault current circuit breaker.
  • This compact construction enables the fire protection device according to the present invention to be divided into three chief components, consisting of a special gas sensor technology in the floor region or in the door of the domestic appliance, a special mains plug, or main switch and electric conductors, which take on the additional function of, preferably all-pole, disconnection of the domestic appliance.
  • the fire protection device for domestic appliances it eventuates that a fault current, smouldering, an open fire or smoke is recognised and the dishwashing machine is cut off promptly from the mains supply and on the one hand any spread of the malfunctions is prevented, or the very occurrence of malfunctions is prevented, and on the other hand the electric ignition energy for the fire or the smouldering is stopped.
  • the fire protection device for domestic appliances according to the present invention is used fault currents or short circuits in the appliance are already recognised, before they can result in an outbreak of smouldering or open fire caused thereby.
  • the invention provides a fire protection device for domestic appliances, which, at the outset of a malfunction which could potentially result in the domestic appliance catching fire, carries out measures which can protect the domestic appliance from further damage, and prevent the danger of fire.
  • the main switch of the domestic appliance which is used to supply the individual components of the domestic appliance, is connected to the mains plug, whereby the main switch is supplied only with low voltage.
  • the fire protection device according to the present invention it is guaranteed that essential electric currents running in the interior of the domestic appliance are provided as low voltage, with the exception of electric currents e.g. for motors and heaters.
  • the fire protection device according to the present invention advantageously no electric conductor with alternating current of 230 V is guided through the domestic appliance as far as the main switch.
  • the gas sensor is arranged in the floor region and/or a door of the domestic appliance.
  • the signal for switching on, switching off or disconnection of the domestic appliance by means of a fault current circuit breaker can be given via direct connection (conductor/flexible cord), as radio signal or also via an appliance-internal or appliance-external bus.
  • a fault current circuit breaker Through switching on, switching off or disconnection of the domestic appliance by means of a fault current circuit breaker the function of the fault current circuit breaker is advantageously checked each time.
  • the gas sensor circuit compares the accumulated actual values to the detected parameters and triggers a disconnection signal in the event of sufficient deviation. This signal results in, preferably all-pole, disconnection of the domestic appliance.
  • FIG. 1 shows a circuit plan of a mains plug, its fire protection device according to the present invention as well as a schematic diagram of the domestic appliance;
  • FIG. 2 shows another preferred embodiment of the fire protection device according to the present invention.
  • the fire protection device according to the present invention with a circuit plan as in FIG. 1 shows a mains plug 1 , which is connected to the dishwashing machine 2 via electric conductor bundles 3 and 4 .
  • the conductor bundles 3 lead from the mains plug 1 to the electrical consumers, such as for example motors or heaters, the conductor bundles 4 lead from the mains plug 1 to the main switch, which can e.g. be designed as four-way operation buttons.
  • the conductor bundles 4 are configured as low voltage conductors.
  • a gas sensor 5 Arranged in the floor region of the dishwashing machine 2 in the illustrated embodiments is a gas sensor 5 , assigned to which is a gas sensor circuit, and is connected by way of electric conductors to the main switch 6 , so that when a signal of the gas sensor 5 is emitted the main switch 6 interrupts the main current circuit and the dishwashing machine 2 is them without current.
  • a transformer unit 7 Provided in the mains plug 1 is a transformer unit 7 , which transforms incoming 230 V alternating current to a low voltage via flexible cord L 1 .
  • a relay 8 in the embodiments a bistable relay 8 , is provided in the mains plug 1 , which is connected via both channels R and S to the main switch 6 .
  • a cumulative current transformer 9 which constantly measures the sum of all currents and from a certain deviation, which is attributable for example to a fault current, sends a signal to the reset inlet—channel R—of the relay 8 , so that finally the main switch 6 of the dishwashing machine 2 disconnects.
  • FIG. 2 With the fire protection device according to the present invention with a circuit plan according to FIG. 2 the same components are designated as in the circuit plan in FIG. 1.
  • a technical variant comprises placing the gas sensor 5 and the main switch 6 not directly in the reset channel of the relay 8 , but rather to guide both conductors via the protective conductor PE.
  • the technical features, in particular the performance features of the circuit as per FIG. 2, are identical to the performance features of the circuit as in FIG. 1.
  • the invention provides a fire protection device for domestic appliances 2 , which carries out measures at the outset of a malfunction with potential fire consequences for the dishwashing machine 2 , in order both to protect the dishwashing machine 2 from further damage, and to prevent the danger of fire.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Breakers (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Fire Alarms (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Inorganic Insulating Materials (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Sink And Installation For Waste Water (AREA)
US10/734,054 2001-06-26 2003-12-10 Fire protection device for domestic appliances Abandoned US20040140191A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/721,590 US8958191B2 (en) 2001-06-26 2010-03-11 Fire protection device for domestic appliances

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10130608.3 2001-06-26
DE10130608A DE10130608A1 (de) 2001-06-26 2001-06-26 Brandschutzeinrichtung für Haushaltgeräte

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/006518 Continuation WO2003002208A1 (de) 2001-06-26 2002-06-13 Brandschutzeinrichtung für haushaltgeräte

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/721,590 Continuation US8958191B2 (en) 2001-06-26 2010-03-11 Fire protection device for domestic appliances

Publications (1)

Publication Number Publication Date
US20040140191A1 true US20040140191A1 (en) 2004-07-22

Family

ID=7689385

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/734,054 Abandoned US20040140191A1 (en) 2001-06-26 2003-12-10 Fire protection device for domestic appliances
US12/721,590 Expired - Fee Related US8958191B2 (en) 2001-06-26 2010-03-11 Fire protection device for domestic appliances

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12/721,590 Expired - Fee Related US8958191B2 (en) 2001-06-26 2010-03-11 Fire protection device for domestic appliances

Country Status (6)

Country Link
US (2) US20040140191A1 (de)
EP (1) EP1404417B1 (de)
AT (1) ATE477025T1 (de)
DE (2) DE10130608A1 (de)
ES (1) ES2348437T3 (de)
WO (1) WO2003002208A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100073841A1 (en) * 2006-10-09 2010-03-25 Per Erik Lie Apparatus and method for fire protection of electrical installations
US20100271848A1 (en) * 2007-12-05 2010-10-28 Bsh Bosch Und Siemens Hausgerate Gmbh Circuit configuration for operating a household appliance
US20110234018A1 (en) * 2010-03-23 2011-09-29 Diehl Ako Stiftung & Co. Kg Control circuit for an electronic household appliance
US20170084156A1 (en) * 2015-09-21 2017-03-23 Innohome Oy Supervision and control method for preventing poor air quality and fire as well as issuing an alarm of a dangerous condition
US20170263095A1 (en) * 2016-03-11 2017-09-14 Percival A. Peck Appliances Built-in Safety Features
WO2018204299A1 (en) * 2017-05-05 2018-11-08 Astronics Advanced Electronic Systems Corp. Volatile organic compound controlled relay for power applications

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7597967B2 (en) 2004-12-17 2009-10-06 Eastman Kodak Company Phosphorescent OLEDs with exciton blocking layer
CN110314313B (zh) * 2019-05-14 2021-03-02 江苏亨诺科技有限公司 一种智能家居消防系统

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1979976A (en) * 1932-05-12 1934-11-06 Gen Electric Gas detector
US3973192A (en) * 1973-11-28 1976-08-03 Telefonaktiebolaget L M Ericsson Device for providing an early detection of aerosol products of combustion of a polyvinyl chloride substance
US4436972A (en) * 1980-09-03 1984-03-13 Heinemann Electric Company Circuit protector having a lamp within its handle and terminals therefor
US4484185A (en) * 1983-08-12 1984-11-20 Graves James D Safety plug adapter
US4751401A (en) * 1987-03-23 1988-06-14 Core Industries Inc. Low voltage switch
US5039006A (en) * 1989-08-16 1991-08-13 Habegger Millard A Home heating system draft controller
US5453725A (en) * 1994-05-25 1995-09-26 You; Long-Cheng Overcurrent breaker switch
US5604387A (en) * 1990-12-19 1997-02-18 Fisher & Paykel Limited Power supply derived from motor winding
US5844759A (en) * 1995-05-26 1998-12-01 David C. Nemir Electrical fault interrupter
US5936531A (en) * 1998-03-06 1999-08-10 Powers; Frank A. Electrical fire sensing and prevention/extinguishing system
US5943199A (en) * 1997-04-22 1999-08-24 Tower Manufacturing Corporation Mini appliance leakage current interrupter
US5946180A (en) * 1998-08-26 1999-08-31 Ofi Inc. Electrical connection safety apparatus and method
US6046441A (en) * 1998-05-05 2000-04-04 Daffron; Thomas Robert Combustion activated device for disabling an electrical appliance
US6603221B1 (en) * 1999-04-22 2003-08-05 Zhongdu Liu Solid state electrical switch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824374A (en) * 1971-05-13 1974-07-16 E Mayher Condition responsive disconnect arrangement for electrical cooking equipment
FR2543839B1 (fr) * 1983-04-08 1986-04-18 Pgep Dispositif autonome de protection d'un ensemble electrique contre l'incendie
US4483314A (en) * 1983-06-09 1984-11-20 James A. Hackney, III Cooking range with fire extinguishing facility
US4834188A (en) * 1987-03-19 1989-05-30 Twenty-First Century International Fire Equipment And Services Corp. Fire extinguishing system for cookstoves and ranges
ES2006865A6 (es) 1987-04-24 1989-05-16 Faini Spa Dispositivo de proteccion contra el incendio de aparatos electricos con partes inflamables.

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1979976A (en) * 1932-05-12 1934-11-06 Gen Electric Gas detector
US3973192A (en) * 1973-11-28 1976-08-03 Telefonaktiebolaget L M Ericsson Device for providing an early detection of aerosol products of combustion of a polyvinyl chloride substance
US4436972A (en) * 1980-09-03 1984-03-13 Heinemann Electric Company Circuit protector having a lamp within its handle and terminals therefor
US4484185A (en) * 1983-08-12 1984-11-20 Graves James D Safety plug adapter
US4751401A (en) * 1987-03-23 1988-06-14 Core Industries Inc. Low voltage switch
US5039006A (en) * 1989-08-16 1991-08-13 Habegger Millard A Home heating system draft controller
US5604387A (en) * 1990-12-19 1997-02-18 Fisher & Paykel Limited Power supply derived from motor winding
US5453725A (en) * 1994-05-25 1995-09-26 You; Long-Cheng Overcurrent breaker switch
US5844759A (en) * 1995-05-26 1998-12-01 David C. Nemir Electrical fault interrupter
US5943199A (en) * 1997-04-22 1999-08-24 Tower Manufacturing Corporation Mini appliance leakage current interrupter
US5936531A (en) * 1998-03-06 1999-08-10 Powers; Frank A. Electrical fire sensing and prevention/extinguishing system
US6046441A (en) * 1998-05-05 2000-04-04 Daffron; Thomas Robert Combustion activated device for disabling an electrical appliance
US5946180A (en) * 1998-08-26 1999-08-31 Ofi Inc. Electrical connection safety apparatus and method
US6603221B1 (en) * 1999-04-22 2003-08-05 Zhongdu Liu Solid state electrical switch

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100073841A1 (en) * 2006-10-09 2010-03-25 Per Erik Lie Apparatus and method for fire protection of electrical installations
US8084890B2 (en) 2006-10-09 2011-12-27 Per Erik Lie Apparatus and method for fire protection of electrical installations
US20100271848A1 (en) * 2007-12-05 2010-10-28 Bsh Bosch Und Siemens Hausgerate Gmbh Circuit configuration for operating a household appliance
US8358037B2 (en) 2007-12-05 2013-01-22 Bsh Bosch Und Siemens Hausgeraete Gmbh Circuit configuration for operating a household appliance
US20110234018A1 (en) * 2010-03-23 2011-09-29 Diehl Ako Stiftung & Co. Kg Control circuit for an electronic household appliance
US20170084156A1 (en) * 2015-09-21 2017-03-23 Innohome Oy Supervision and control method for preventing poor air quality and fire as well as issuing an alarm of a dangerous condition
US10347112B2 (en) * 2015-09-21 2019-07-09 Innohome Oy Supervision and control method for preventing poor air quality and fire as well as issuing an alarm of a dangerous condition
US10490055B2 (en) * 2015-09-21 2019-11-26 Innohome Oy Supervision and control system for preventing poor air quality and fire as well as issuing an alarm of a dangerous condition
US20170263095A1 (en) * 2016-03-11 2017-09-14 Percival A. Peck Appliances Built-in Safety Features
WO2017155558A1 (en) * 2016-03-11 2017-09-14 Peck Percival A Appliances built-in safety features
WO2018204299A1 (en) * 2017-05-05 2018-11-08 Astronics Advanced Electronic Systems Corp. Volatile organic compound controlled relay for power applications
US11177102B2 (en) 2017-05-05 2021-11-16 Astronics Advanced Electronic Systems Corp. Volatile organic compound controlled relay for power applications

Also Published As

Publication number Publication date
WO2003002208A1 (de) 2003-01-09
ES2348437T3 (es) 2010-12-07
DE50214580D1 (de) 2010-09-23
US8958191B2 (en) 2015-02-17
DE10130608A1 (de) 2003-01-09
ATE477025T1 (de) 2010-08-15
EP1404417A1 (de) 2004-04-07
US20100165531A1 (en) 2010-07-01
EP1404417B1 (de) 2010-08-11

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BSH BOSCH UND SIEMENS HAUSGERATE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JERG, HELMUT;STAEDEL, STEFAN A.;REEL/FRAME:015160/0063

Effective date: 20040114

STCB Information on status: application discontinuation

Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION