[go: up one dir, main page]

WO2019211126A1 - Commutateur d'allumage - Google Patents

Commutateur d'allumage Download PDF

Info

Publication number
WO2019211126A1
WO2019211126A1 PCT/EP2019/060397 EP2019060397W WO2019211126A1 WO 2019211126 A1 WO2019211126 A1 WO 2019211126A1 EP 2019060397 W EP2019060397 W EP 2019060397W WO 2019211126 A1 WO2019211126 A1 WO 2019211126A1
Authority
WO
WIPO (PCT)
Prior art keywords
ignition switch
wall portion
housing
contact
flexible wall
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.)
Ceased
Application number
PCT/EP2019/060397
Other languages
English (en)
Inventor
Mauro ANGELINI
Emanuele Sorrentino
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.)
Electrolux Appliances AB
Original Assignee
Electrolux Appliances AB
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 Electrolux Appliances AB filed Critical Electrolux Appliances AB
Publication of WO2019211126A1 publication Critical patent/WO2019211126A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
    • H01H3/141—Cushion or mat switches
    • H01H3/142—Cushion or mat switches of the elongated strip type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/126—Arrangement or mounting of control or safety devices on ranges
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings

Definitions

  • the present invention relates generally to the field of electric switches. More specifically, the present invention relates to an ignition switch for gas appliances.
  • Gas appliances comprising one or more ignition switches in order to provide a spark at a gas burner for igniting said gas burner are basically known.
  • the ignition switch may be operatively coupled with a knob of a gas tap in order to generate an igni tion spark when pressing the knob. More in detail, the ignition switch allows to close an electrical circuit in which a spark generator is provided.
  • German patent DE 1 429 108 C3 discloses an ignition arrangement comprising mechanical transfer elements.
  • German patent application DE 196 10 522 A1 discloses an ignition switching mechanism comprising a switching element which is op eratively coupled with a plurality of shafts of gas taps.
  • the invention relates to an ignition switch for a gas appliance.
  • the ignition switch comprises a housing and a first and a second contact portion included in an interior space of said housing.
  • Said housing comprises a flexi ble wall portion which at least partially confines said interior space of said housing.
  • At least one contact portion is opera tively coupled with said flexible wall portion such that an electrical contact is achieved between the first and the second contact portion when deforming the flexible wall portion.
  • the flexible wall portion may be formed by a reversibly elas tically deformable material.
  • Said ignition switch is advantageous because due to the flexible wall portion of the housing, the switching operation can be ob tained by a deformation of the flexible wall portion. Thereby, the spillage resistance and the fields of application of the ig nition switch are greatly increased.
  • the housing comprises a further wall portion, wherein said first and second contact portions are en capsulated between said flexible wall portion and said further wall portion.
  • the flexible wall portion and the fur ther wall portion are connected in a fluid-tight manner, e.g. by gluing, moulding or similar connection methods.
  • the flexible wall portion and the further wall portion are connected without providing a gasket between said wall portions.
  • said flexible wall portion forms an upper portion of said housing.
  • said flexible wall portion comprises a U-like or essentially U-like shape.
  • the legs of the U- like shaped flexible wall portion can be bent outwardly thereby enabling a physical contact between the contact portions.
  • a contact portion is arranged at the flexible wall portion and the other contact portion is arranged at the further wall portion.
  • one contact portion of said first and second contact portions comprises a planar contact pad.
  • Said planar contact portion may be provided at the flexible wall por tion, specifically at the bottom portion of the U-like shaped flexible wall portion.
  • the planar contact pad may be provided at the further wall portion arranged opposite to the flexible wall portion.
  • one contact portion of said first and second contact portions comprises a convexly shaped contact sec tion, wherein the curvature of the convexly shaped contact sec tion is provided towards the other contact portion.
  • the ignition switch comprises an elon gated and/or bar-like shape.
  • the ignition switch may extend along multiple gas taps which are arranged in a row and the pressing of one knob of said gas taps ensures a switching operation of the ignition switch.
  • the first and second contact portions are integrally formed and extend along the elongated and/or bar like housing, specifically, along the whole or essentially the whole length of the interior space of the elongated and/or bar like housing.
  • the ignition switch may comprise a single switch, specifically a micro-switch, and a switching operation caused by one gas tap corresponding with the ignition switch causes the same switching operation than a switching operation caused by another gas tap corresponding with the ignition switch .
  • the housing comprises two parallel branches which are distanced in a middle portion of the ignition switch by means of a gap in order to provide a passage for one or more gas tap shafts.
  • the one or more gas tap shafts can extend through the ignition switch and the reliability of ignition switch is further increased because switching means are provided at opposite sides of the gas tap shaft.
  • first and second contact portions are provided in both branches or only in one branch. In other words, a pair of contact portions can be provided only at one side of the gas tap shaft or the contact portions are duplicated at both sides of the gas tap shaft.
  • the flexible wall portion is inte grally formed and extends over both branches. Thereby, the spillage resistance of the ignition switch is further improved.
  • the further wall portion is integrally formed and extends over both branches. Therefore, the spillage re sistance of the ignition switch is further improved.
  • the invention relates to a gas appliance comprising one or more gas taps and an ignition switch for igniting one or more gas burners, the ignition switch being configured according to any embodiment described before.
  • the gas appliance comprises multiple gas taps, wherein the ignition switch extends along said multi ple gas taps, specifically along all gas taps of the appliance.
  • the ignition switch extends along said multi ple gas taps, specifically along all gas taps of the appliance.
  • the ignition switch is placed below one or more knobs of said one or more gas taps such that the flexible wall portion of the ignition switch is deformed when pressing at least one knob.
  • switching operation is ob tained by a direct impact of the knob on the flexible wall por tion.
  • the switching operation can also be ob tained by an indirect impact of the knob, e.g. by a transfer en tity provided between the knob and the ignition switch.
  • the term "essentially” or “approximately” as used in the inven tion means deviations from the exact value by +/- 10%, prefera bly by +/- 5% and/or deviations in the form of changes that are insignificant for the function.
  • Fig. 1 shows an example lateral sectional view of an ignition switch arranged at a set of gas taps
  • Fig. 2 shows an example lateral sectional view of an ignition switch arranged at a knob of a gas tap
  • Fig. 3 shows an example lateral sectional view through the hous ing of an ignition switch without applying an external force
  • Fig. 4 shows an example lateral sectional view through the hous ing of an ignition switch when applying an external force
  • Fig. 5 shows an exploded view of an ignition switch with a two branch configuration
  • Fig. 6 shows a gas appliance comprising an ignition switch ac cording to fig. 5;
  • Fig. 7 shows a further example lateral sectional view through the housing of an ignition switch without applying an ex- ternal force.
  • Fig. 1 illustrates a schematic diagram of an arrangement of an ignition switch 1 and multiple gas taps 6 which interact with said ignition switch 1 for igniting gas burners (not shown in fig. 1) which are coupled with said gas taps 6.
  • the ignition switch 1 is adapted to be arranged below a knob 6.2 of the gas tap 6, said knob 6.2 being coupled with a valve por tion of gas tap 6 via a gas tap shaft 6.1.
  • the arrangement of the ignition switch 1 with respect to the knob 6.2 is chosen such that, when pressing the knob 6.2, a lower surface of the knob 6.2 abuts against an upper portion of the ignition switch 1. Thereby, at least a portion of the ignition switch 1 is de formed causing a closure of an electrical contact within the ig nition switch 1. Said closing of electrical contact causes an ignition spark at one or more gas burners.
  • the ignition switch 1 may span along multi ple gas taps 6. More in detail, a single ignition switch 1 may comprise a longitudinal shape and may extend across multiple gas taps 6 such that multiple knobs 6.2 of gas taps 6 can interact with the ignition switch 1 as mentioned before.
  • Fig. 2 shows a partial cross-sectional view of an arrangement of a knob 6.2 and an ignition switch 1.
  • the ignition switch 1 comprises a housing 2. At least a portion of said housing 2 is made of a flexible material. So, in other words, the housing 2 comprises a flexible wall portion 2a made of a flexible, deformable material. Said material may be sili cone, rubber, flexible plastic or a flexible, insulating compo site or mixed material.
  • the flexible wall portion 2a forms the upper portion of the housing 2 which gets in contact with the knob 6.2.
  • the flexible wall portion 2a may comprise a U-like shape which opens downwardly.
  • the housing 2 may further comprise a further wall portion 2b made of a rigid material. Said further wall portion 2b may form the lower portion of the housing 2, specifically a portion which is arranged below the flexible wall portion 2a.
  • the flexible wall portion 2a and the further wall portion 2b may confine an interior space 2.1 within said housing 2.
  • electrical switching means including at least a first contact portion 3 and a second contact portion 4 are provided .
  • the flexible wall portion 2a and the further wall portion 2b may be glued, molded or otherwise firmly bonded in order to achieve a hermetically sealing of electrical switching means included within the housing 2.
  • the flexible wall portion 2a and the further wall portion 2b may be connected such that a fluid-tight encapsulation of the first contact portion 3 and the second contact portion 4 is achieved.
  • Said fluid-tight encapsu lation is preferably obtained without any gaskets provided be tween the flexible wall portion 2a and the further wall portion 2b.
  • the first contact portion 3 is pro vided at the flexible wall portion 2a and the second contact portion 4 is provided at the further wall portion 2b.
  • the distance d between the first and second contact portion 3, 4 can be changed when pressing the knob 6.2 and the first and second contact por tion 3, 4 can get in contact with each other (which results in a closed electrical contact) .
  • the first and second contact portion 3, 4 may comprise different shapes.
  • one of the contact portions for example the first contact portion 3 which is pro vided at the flexible wall portion 2a, may comprise a planar shape, whereas the other contact portion, for example, the sec ond contact portion 4, may comprise a convex shape. More in de tail, the other contact portion may comprise an upwardly ori ented curvature in order to improve the electrical contact when pressing the knob 6.2.
  • the contact portions 3, 4 may comprise a longitudinal shape and may extend along the longitudinal axis within the housing 2. So, in other words, the contact portions 3, 4 may be integrally formed and may extend along the whole or essentially along the whole length of the interior space 2.1 of the housing 2.
  • Fig. 3 and 4 illustrate a cross section of an ignition switch 1 in a non-deformed and a deformed state.
  • the flexible wall portion 2a is deformed and the contact portions are pressed against each other. Thereby a closed elec trical contact is achieved which cause the generation of a spark by a spark generator.
  • the ignition switch 1 returns into the position shown in Fig. 3, i.e. the electrical contact is opened.
  • the restoring force may be applied solely by the flexible material of the flexible wall portion 2a, i.e. no spring element is required for opening the electrical contact.
  • the ignition switch 1 may be adapted such that one or more gas tap shafts 6.1 can be provided though the ignition switch 1. More in detail, the ignition switch 1 may comprise a first branch 2' and a second branch 2' ' . Said
  • branches 2' , 2'' may be arranged parallel or essentially paral lel. Said branches 2' , 2'' are at least partially separated from each other such that one or more gas tap shafts 6.1 can be pro vided through one or more gaps 5. Said one or more gaps 5 may be arranged between said branches 2' , 2' ' .
  • the branches 2' , 2'' may be coupled by one or more bars 2.2.
  • the bars 2.2 may be arranged at or close to the free ends of the housing 2 of the ignition switch 1. There fore, in the present case, the gap 5 essentially extends along the whole length of the ignition switch 1.
  • the bars 2.2 could also be provided at other positions, specifically only bridging the branches 2' , 2'' at the further wall portion 2b.
  • Fig. 5 shows the components of the ignition switch 1 in closer detail.
  • the flexible wall portion 2a and the further wall por tion 2b may comprise a rectangular ring-like shape and may be adapted to form an interior space 2.1 which also comprises a rectangular ring-like shape.
  • Each contact portion 3, 4 may com prise two legs 3.1, 4.1 being arranged parallel to each other.
  • One leg 3.1, 4.1 is provided in the first branch 2' and the fur ther leg 3.1, 4.1 may be provided in the second branch 2' ' .
  • the contact portions 3, 4 may be coupled at least at one free end of said legs 3.1, 4.1 based on a coupling portion in order to ena ble a common electrical contact of the legs 3.1, 4.1.
  • Electrical wires may be provided through a passage in the housing 2 in or der to enable an electrical coupling of the contact portions 3,
  • Fig. 6 shows a gas appliance 10 including multiple gas taps 6 and an ignition switch 1 according to Fig. 5.
  • the gas tap shafts 6.1 are provided through a gap 5 of the ignition switch 1 and the knobs 6 are provided above the flexible wall portion 2a of the ignition switch 1.
  • the lower portion of the housing 2 may rest on a fixed portion of the gas appliance housing or a hous ing of the gas taps 6. Thereby, when pressing one of the knobs 6.2, the flexible wall portion 2a of the housing 2 is deformed and the contact portions 3, 4 get in contact with each other.
  • the ignition switch 1 does not comprise a gap 5 between a pair of branches 2', 2 but comprises a bar-like shape without any opening for passage of gas tap shafts 6.1.
  • Such ignition switch 1 may be arranged below the one or more knobs 6.2 of the gas taps 6 in front of (similar to branch 2 in Fig. 6) or be hind (similar to branch 2 in Fig. 6) the set of gas tap shafts 6.1.
  • Fig. 7 shows a further example embodiment of an ignition switch 1.
  • the housing 2 is formed by flexible ma terial which circumferentially encompasses the first and second contact portion 3, 4. So in other words, not only a portion, specifically an upper portion of the housing 2 is made of a flexible material but also a lower portion.
  • the housing 2 may be partly inserted in a holder structure 8.
  • Said holder structure 8 may be, for example, made of a rigid material or a material with greater shore hardness than the flexible material of the housing 2.
  • the holder structure 8 may have a U-shape in order to receive and partly encompass the housing 2. More in detail, the housing 2 may be received with a lower portion in said holder structure 8.
  • the housing 2 may be clamped, form-fitted or other wise fixed within the holder structure 8. Based on said holder structure 8, the housing 2 is fixed within the gas appliance, specifically fixed with respect to the knob 6.2 interacting with the ignition switch 1 in which said housing 2 is included.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

L'invention concerne un commutateur d'allumage pour un appareil à gaz (10) comprenant un boîtier (2) et une première et une seconde partie de contact (3, 4) comprises dans un espace intérieur (2.1) dudit boîtier (2), ledit boîtier (2) comprenant une partie de paroi flexible (2a) qui confine au moins partiellement ledit espace intérieur (2.1) dudit boîtier (2), au moins une partie de contact (3, 4) étant couplée de manière fonctionnelle à ladite partie de paroi flexible (2a) de telle sorte qu'un contact électrique est obtenu entre la première et la seconde partie de contact (3, 4) lors de la déformation de la partie de paroi flexible (2a).
PCT/EP2019/060397 2018-05-03 2019-04-23 Commutateur d'allumage Ceased WO2019211126A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18170620.1 2018-05-03
EP18170620.1A EP3564978A1 (fr) 2018-05-03 2018-05-03 Commutateur d'allumage

Publications (1)

Publication Number Publication Date
WO2019211126A1 true WO2019211126A1 (fr) 2019-11-07

Family

ID=62116265

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/060397 Ceased WO2019211126A1 (fr) 2018-05-03 2019-04-23 Commutateur d'allumage

Country Status (2)

Country Link
EP (1) EP3564978A1 (fr)
WO (1) WO2019211126A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1429108A1 (de) * 1963-02-06 1968-11-28 Imp Werke Gmbh Hochspannungszuendeinrichtung fuer Gasherde
EP0767475A2 (fr) * 1995-10-05 1997-04-09 Bridgestone Corporation Contact câble
DE19610522A1 (de) 1996-03-18 1997-09-25 Haschkamp Joachim Zündschaltvorrichtung für Gasherde
US20020178574A1 (en) * 2001-04-17 2002-12-05 Burgess Lester E. Pressure actuated switching device and transfer method for making same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1429108A1 (de) * 1963-02-06 1968-11-28 Imp Werke Gmbh Hochspannungszuendeinrichtung fuer Gasherde
DE1429108C3 (de) 1963-02-06 1978-04-06 Imperial-Werke Gmbh, 4980 Buende Hochspannungszündeinrichtung für Gasbrennstellen an Gasherden u.dgl
EP0767475A2 (fr) * 1995-10-05 1997-04-09 Bridgestone Corporation Contact câble
DE19610522A1 (de) 1996-03-18 1997-09-25 Haschkamp Joachim Zündschaltvorrichtung für Gasherde
US20020178574A1 (en) * 2001-04-17 2002-12-05 Burgess Lester E. Pressure actuated switching device and transfer method for making same

Also Published As

Publication number Publication date
EP3564978A1 (fr) 2019-11-06

Similar Documents

Publication Publication Date Title
KR20010102408A (ko) 인터로크에 의해 회로 기판에 고정되는 밀폐된 개별 전기스위치
JP2005129471A (ja) サーマルプロテクタ
US8752376B2 (en) Electro-thermal actuator device
EP1148524A3 (fr) Commutateur à bascule pour une alimentation électrique
US6305083B1 (en) Apparatus with a housing provided with a synthetic resin wall portion with a synthetic resin panel provided thereon
US11085638B2 (en) Device for controlling the ignition of gas burners of a domestic cooking appliance
US4110585A (en) Grounded lever toggle switch
WO2019211126A1 (fr) Commutateur d'allumage
US3978303A (en) Leaf spring switch
JPS5922332B2 (ja) サ−モスタツト
US6441332B1 (en) Switch assembly incorporating contact wedge
US2712047A (en) Electrical assembly
US5023413A (en) Plunger switch
US8381716B2 (en) Flame ignition device for gas burners
JP5497591B2 (ja) スイッチ装置
EP0777245A1 (fr) Dispositif de protection contre des infiltrations de liquides dans des interrupteurs électriques et similaires
CN219413602U (zh) 一种温控水开关
US4209677A (en) Precision snap switch with improved one piece contact support and terminal member
EP1798471B1 (fr) Micro-interrupteur pouvant être associé à une vanne de gaz, en particulier pour des plaques de cuisson ou des équipements équivalents
US20160155588A1 (en) Temperature switch
KR200345976Y1 (ko) 가전제품용 플런저 스위치
US6274834B1 (en) Push-button switch with part to a wire rod exposed to an inside bottom of housing to form a contact portion
GB2083709A (en) Temperature-sensitive switch for electrically heated appliances
JP2890825B2 (ja) 回路遮断器
KR200364443Y1 (ko) 무접점 기동 스위치용 스프링

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19718414

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19718414

Country of ref document: EP

Kind code of ref document: A1