EP0253050A1 - Elément électrique chauffant avec spires en forme de méandres - Google Patents

Elément électrique chauffant avec spires en forme de méandres Download PDF

Info

Publication number
EP0253050A1
EP0253050A1 EP87100773A EP87100773A EP0253050A1 EP 0253050 A1 EP0253050 A1 EP 0253050A1 EP 87100773 A EP87100773 A EP 87100773A EP 87100773 A EP87100773 A EP 87100773A EP 0253050 A1 EP0253050 A1 EP 0253050A1
Authority
EP
European Patent Office
Prior art keywords
radiator according
insulating
temperature switch
rail
webs
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
Application number
EP87100773A
Other languages
German (de)
English (en)
Other versions
EP0253050B1 (fr
Inventor
Helmut Ohnmacht
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.)
Eichenauer Heizelemente GmbH and Co KG
Original Assignee
Fritz Eichenauer GmbH and Co KG
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 Fritz Eichenauer GmbH and Co KG filed Critical Fritz Eichenauer GmbH and Co KG
Publication of EP0253050A1 publication Critical patent/EP0253050A1/fr
Application granted granted Critical
Publication of EP0253050B1 publication Critical patent/EP0253050B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/16—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being mounted on an insulating base
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional [2D] plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional [2D] plane, e.g. plate-heater non-flexible
    • H05B3/26—Heating elements having extended surface area substantially in a two-dimensional [2D] plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/003—Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/016—Heaters using particular connecting means

Definitions

  • the invention relates to an electric radiator with a heating conductor in the form of meandering windings, the individual windings being held in at least one insulating material plate in openings separated by webs.
  • Such electric radiators are known for example from DE-PS 11 85 743, DE-PS 14 40 381, DE-PS 14 40 404 and DE-PS 12 74 760.
  • U-shaped sheet metal strips as stiffening rails are known for example from DE-PS 12 58 523 or DE-OS 31 41 828; the strips there, however, at best ensure stiffening in one direction of extension and cannot readily be used as a return conductor.
  • the use of a metal strip as a return conductor, to put both connection contacts of a radiator for bread toast on one side is known from DE-PS 16 15 253.
  • the invention has for its object to provide a generic radiator, in particular with a large length and a small width in a technically simple and advantageous manner with greater stability.
  • the above object is achieved in an electric radiator with a heating conductor in the form of meandering windings, the individual windings being held in at least one insulating material plate in openings separated by webs, in that an integral holding rail is provided which extends over the entire width of the insulating material plates and essentially extends their length and has bent tabs on both sides of the insulating material plates on both sides of the same, which overlap the insulating material plates.
  • an integral holding rail is provided which extends over the entire width of the insulating material plates and essentially extends their length and has bent tabs on both sides of the insulating material plates on both sides of the same, which overlap the insulating material plates.
  • connection contacts are provided on one end face for the connection of electrical connections and the heating conductors are electrically connected to the rail on the other end face
  • the rail has openings and webs on the side facing away from the tabs having.
  • the invention creates a possibly narrow and elongated, highly stable radiator in a simple manner in terms of production technology. If the holding notes are made of metallic material and are used as return conductors, their connection contact can be loosened to them or, in an extremely preferred embodiment, can be formed in one piece with the holding rail.
  • the electrical connection of the heating conductor on the end face opposite the connection end face is preferably carried out via an eyelet, so that a reliable mechanical and electrical contact is established here.
  • the invention therefore provides in an extremely preferred embodiment that a temperature switch is slidably attached to the holding rail, wherein in particular the holding rail is encompassed by tabs of a holder for a temperature switch.
  • the temperature switch can be secured to it against falling or removing, but can be mounted displaceably along the rail or the rails. This makes it possible to manufacture the complete radiator with the associated temperature switch and to store it with a processor who will then, depending on the installation conditions moves the temperature switch along the rail to a desired location, where the temperature switch is either held non-positively or cannot be fixed releasably, for example by riveting or soldering to the rail.
  • the temperature switch can be fixed to the holding rail by means of the webs.
  • the rail can also be used as a conductor for the current conducted via the temperature switch, so that the rail is made into an electrical connection via the holder for the temperature switch to make a contact.
  • the other contact of the switch must be insulated from the holder of the switch and be provided with a separate connection element for connecting a cable.
  • the electric heater 1 has a heating conductor 2 ⁇ with initially one or more rows of meandering turns 2 made of electrical resistance wire.
  • the legs of a turn 2 are longer than their distance.
  • the turns 2 are fixed to a first insulating plate 3 in the following way:
  • the insulating plate 3 has openings 4 which are separated from one another by webs 6.
  • One end 7 of a turn passes through an opening 4, is then guided around the web 6 and emerges again through an adjacent opening 4.
  • the assembly of the insulating plate 3 and the heating conductor 2 ⁇ with the turns 2 can be done in that the insulating plate 3 with their openings on the ends 7 facing away from the ends 8 of the turns 2 are performed.
  • Another insulating plate 9 is placed on the side of the insulating plate 3 facing away from the heating conductor 2 ist.
  • the radiator described so far is stiffened and in particular the two insulating plates 3, 9 are held together by a stiffening rail 11 which extends on the side of the insulating plates 3, 9 facing away from the heating conductor 2 with a main part 12 over the entire width of the insulating plates 3, 9 and has at its longitudinal edges around the longitudinal edges 13, 14 of the insulating plates 3, 9 except for the top 16 of the insulating plate 3 tabs 17 bent by 180 degrees.
  • the plates 3, 9 are firmly clamped against one another and the entire radiator 1 is stabilized.
  • connecting parts 24 with contact tabs 22, 23 are first arranged, which are in electrical connection with the heating conductor 2 ⁇ and serve to connect the heating conductor 2 ⁇ as electrical connections.
  • the rows of meanders are contacted as follows: in the end region of the upper insulating plate 3, an insulating web 19 delimited by two slots 18 is formed in alignment with the rows of meanders. On this sits a vertical section U-shaped connecting part 24 with a bottom web 29, which has a side in the slots 18 and the insulating web 19 encompassing tabs 36.
  • a connecting part 24 On the connecting part 24, on the one hand, one of the contact tabs 22 and 23 for connecting connecting lines and, on the other hand, a crimping part 37 for connection to the end 38 of a row of turns is formed.
  • the end 38 of the row of turns is a piece through a last opening 4 of the insulating plate 3 and between legs 39 of the crimping part 37, which firmly grip it after being squeezed together.
  • the rail 11 On the first end face 21 of the radiator 1, the rail 11 is also provided with a connection contact 28 which is riveted to it, for example.
  • the heating conductor 2 ⁇ In the area of the end face 21 facing away from the end face 21, the heating conductor 2 ⁇ is electrically connected to the rail 11, for example via a rivet or in principle in the manner described above for the connecting parts 24 with a connecting part 27, which with a crimping part 67 is a bent-up tab 68 Rail 11 grips tightly.
  • the rail 11 serves as a return conductor, so that in the illustrated embodiment, depending on the circuit with the contact tabs 22, 23, 28 connected connecting line to a power supply, the two rows of the heating conductor 2 ⁇ can be connected either individually or together. Also, if necessary, a row of the heating conductor 2 ⁇ via the middle connection contact 28 Serve for a motor to be connected, for example a fan.
  • a contact created on the end face 26 facing away from the first end face 21 by the heating conductor 22 to the rail 21 can enable the power supply to be connected on one end to the first end face 21 via the possibilities explained above.
  • the rail 11 has openings 31 and webs 32 on the side facing away from the heating conductor 2 ⁇ .
  • This configuration improves, in particular, the compensation of the different thermal expansion behavior of the insulating plates 3, 9 and the rail 11.
  • this arrangement can serve, with suitable installation conditions, to dispense with the second insulating plate 9 or to hold the heating conductor, if necessary 2 ⁇ to be provided approximately in the middle of the winding height.
  • the webs 32 of the holding rail 11 have central widenings 33 with a through hole 34.
  • a corresponding projection of a holder 41 for a temperature switch 42 which can be moved along the rail 11 can snap into these holes 34 (FIG. 4).
  • the holder 41 of a temperature switch 42 can also be loosened or dotted on the widened webs 32 with the openings 34.
  • the insulating material plates 3, 9 with the holes 34 aligned openings 69 ( Figure 1) with a larger radius, so that the loosening can easily be done on finished radiators.
  • a corresponding holder 41 for a temperature switch 42 can be seen in particular from FIGS. 4 to 6.
  • the bracket 41 first has the width of the rail 11 bridging bow-like web 43, at the ends of which the tabs 17 of the holding rail 11 are formed around tabs 44, by means of which the holder 41 is held on the rail 11 and is displaceable along the latter.
  • a bead 46 is formed centrally in the web 43 and bears against the tabs 44 on the underside of the holding rail 11 or in the area of the openings 32 of the lower insulating plate 14 as an abutment. With the bead 46, the holder 41 can be fixed after setting in the desired position on the holding rail 11, for example by spot welding or the like.
  • a shoulder 47 On one side extends from the web 43, essentially in alignment with it, a shoulder 47, from which in turn a flange 48 protrudes upward, the end 49 of which is bent laterally. At this bent end 49, the temperature switch 42 is fastened with a contact 51, as if it had been loosened.
  • an insulating bridge 52 On the web 47, an insulating bridge 52 is insulated from the web 47 and an angular part 53 is fastened with a flange 54.
  • a projection 56 of the insulating part 52 protrudes between the shoulder 47 and the flange 54, by means of which the parts 47, 54 connected to the insulating part 52, for example by eyelets, are held in a rotationally secure manner.
  • the other end 58 of the temperature switch 42 which is held securely in this way, is fastened to a flange 57 which is bent away from the angle part 53 against the direction of the extension 54 but also the extension 49 of the part 48.
  • 61 is an insulating support part of the temperature switch, with 62 a bearing for a bimetallic disk 63, with 64 the movable contact switched by the bimetallic disk 63 and with 66 the stationary counter contact of the temperature switch 42 cut out and bent out of the contact tab 58.
  • a plurality of temperature switches on the holding rail 11 can also be behind by the configuration according to the invention are arranged and if necessary fixed so that local overheating, which would not lead to a safety shutdown in a device with only one monitor, if they occur away from it, are reliably taken into account.
  • Several temperature switches in the form of controllers can also be provided. Part of the temperature switch can also be a controller and another part can be a watchdog.

Landscapes

  • Resistance Heating (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP87100773A 1986-07-04 1987-01-21 Elément électrique chauffant avec spires en forme de méandres Expired - Lifetime EP0253050B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863622478 DE3622478A1 (de) 1986-07-04 1986-07-04 Elektrischer heizkoerper mit maeanderfoermigen windungen
DE3622478 1986-07-04

Publications (2)

Publication Number Publication Date
EP0253050A1 true EP0253050A1 (fr) 1988-01-20
EP0253050B1 EP0253050B1 (fr) 1991-12-11

Family

ID=6304382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100773A Expired - Lifetime EP0253050B1 (fr) 1986-07-04 1987-01-21 Elément électrique chauffant avec spires en forme de méandres

Country Status (3)

Country Link
US (1) US4845345A (fr)
EP (1) EP0253050B1 (fr)
DE (2) DE3622478A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2594248A1 (fr) * 2007-07-20 2009-01-20 Mabe Canada Inc. Bloc chauffant
RU2435335C1 (ru) * 2008-01-30 2011-11-27 Косиро ТАГУТИ Отопитель для транспортного средства и способ его производства
CA2763532C (fr) * 2011-01-18 2015-03-31 Tutco, Llc Chaufferette a resistance electrique a deux niveau et methode d'utilisation connexe
US9386634B2 (en) * 2011-04-15 2016-07-05 Tutco, Inc. Electrical resistance heater assembly and method of use

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH40144A (de) * 1907-07-15 1908-06-16 Therma Ag Elektrisches Widerstands- und Heizelement
DE1274760B (de) * 1962-10-24 1968-08-08 Eichenauer Fa Fritz Halterung fuer zickzackfoermig gebogene Heizsysteme von hochbelastbaren Elektroheizkoerpern
US3808573A (en) * 1973-01-16 1974-04-30 Emerson Electric Co Electric heater assemblies
AT329702B (de) * 1974-05-14 1976-05-25 Koegler Adalbert Plattenartiger flachenheizkorper
DE3141828A1 (de) * 1980-10-21 1982-07-01 R.I.C.A. Resistenze Industriali Corazzate ed Affini S.p.A., San Giacomo di Veglia, Treviso Elektrischer heizwiderstand

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7503313U (de) * 1975-06-05 Siemens Ag Elektrischer Rohrheizkörper
CH125907A (fr) * 1927-02-26 1928-06-01 Pitton & Collombat Corps de chauffe électrique.
DE1185743B (de) * 1960-03-05 1965-01-21 Eichenauer Fa Fritz Hochbelastbarer Elektroheizkoerper
US3069522A (en) * 1960-10-07 1962-12-18 Frederick W Jamison Heater element for embedment in a mastic slab
DE1440404B2 (de) * 1962-10-24 1969-10-09 Fa. Fritz Eichenauer, 6747 Kandel Hochbelastbarer Elektroheizkörper
DE1258523B (de) * 1964-06-06 1968-01-11 Eichenauer Fa Fritz Heizkoerper fuer Brotroester
DE2849258A1 (de) * 1978-11-14 1980-05-29 Eichenauer Fa Fritz Elektrischer heizkoerper fuer fluide medien
JPS5628489A (en) * 1979-08-14 1981-03-20 Ube Industries Heating material and method of producing same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH40144A (de) * 1907-07-15 1908-06-16 Therma Ag Elektrisches Widerstands- und Heizelement
DE1274760B (de) * 1962-10-24 1968-08-08 Eichenauer Fa Fritz Halterung fuer zickzackfoermig gebogene Heizsysteme von hochbelastbaren Elektroheizkoerpern
US3808573A (en) * 1973-01-16 1974-04-30 Emerson Electric Co Electric heater assemblies
AT329702B (de) * 1974-05-14 1976-05-25 Koegler Adalbert Plattenartiger flachenheizkorper
DE3141828A1 (de) * 1980-10-21 1982-07-01 R.I.C.A. Resistenze Industriali Corazzate ed Affini S.p.A., San Giacomo di Veglia, Treviso Elektrischer heizwiderstand

Also Published As

Publication number Publication date
DE3622478A1 (de) 1988-01-07
EP0253050B1 (fr) 1991-12-11
US4845345A (en) 1989-07-04
DE3775126D1 (de) 1992-01-23

Similar Documents

Publication Publication Date Title
DE2620004C3 (de) Elektrokochplatte mit einem Temperaturbegrenzer
DE69524702T2 (de) Elektrischer Verbindungskasten
DE2509158C3 (de) Elektrische Klemme
EP0333906A1 (fr) Résistance chauffante à coefficient de température positif
DE3104827C2 (fr)
EP0253050A1 (fr) Elément électrique chauffant avec spires en forme de méandres
EP0223168A1 (fr) Plaque de cuisson électrique et dispositif pour sa connexion
DE3102640C2 (fr)
DE2709413C3 (de) Heizkörper für elektrische Geräte mit einem Gebläse
DE2414812A1 (de) Ausdehnungsdose fuer temperaturempfindliche systeme
DE3540816A1 (de) Elektrokochplatte sowie vorrichtung fuer deren anschluss
DE69907264T2 (de) Elektrisches koch- und toastgerät sowie zugehörige elektrische elemente
DE4409123A1 (de) Gerät zum Erwärmen von Flüssigkeiten
DE1127007B (de) Elektrisch beheizte Masse-Schnellkochplatte
DE3418667C2 (fr)
EP0304906A2 (fr) Boîtier de connexion pour plaques électriques de cuisson
EP0289707B1 (fr) Elément chauffant électrique avec prise
EP0243647B1 (fr) Disjoncteur avec déclenchement thermique
DE3041597A1 (de) Heizeinrichtung fuer grosse beheizungsflaeche
DE1640197B2 (de) Bimetallschalter
DE69705397T2 (de) Verbessertes elektrisches heizgerät für flussigkeiten und steuerung dafür
DE19613328C1 (de) Durchlauferhitzer für ein wassererhitzendes Haushaltsgerät
DE3227623C1 (de) Anschlußeinrichtung für einen, vorzugsweise perlenisolierten Strahlungsheizkörper, insbesondere für eine Backofenheizung
DE2604764B2 (de) Elektrische anschlussvorrichtung fuer eine gekapselte kaeltemaschine
DE202004006125U1 (de) Verteilerleiste

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): CH DE ES FR GB IT LI SE

17P Request for examination filed

Effective date: 19880627

17Q First examination report despatched

Effective date: 19900419

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19911211

REF Corresponds to:

Ref document number: 3775126

Country of ref document: DE

Date of ref document: 19920123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920131

Ref country code: CH

Effective date: 19920131

ET Fr: translation filed
ITF It: translation for a ep patent filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19920322

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950112

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960121

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960121

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19991230

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000118

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050121