EP0123698B1 - Elément chauffant électrique pour le chauffage d'un fluide - Google Patents

Elément chauffant électrique pour le chauffage d'un fluide Download PDF

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Publication number
EP0123698B1
EP0123698B1 EP83103976A EP83103976A EP0123698B1 EP 0123698 B1 EP0123698 B1 EP 0123698B1 EP 83103976 A EP83103976 A EP 83103976A EP 83103976 A EP83103976 A EP 83103976A EP 0123698 B1 EP0123698 B1 EP 0123698B1
Authority
EP
European Patent Office
Prior art keywords
wire coil
heater body
resistance wire
heater
heating
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.)
Expired
Application number
EP83103976A
Other languages
German (de)
English (en)
Other versions
EP0123698A1 (fr
Inventor
Arno Lassahn
Dieter F. Dr.-Ing. Schulze-Fröhlich
Hans Siwon
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.)
Steinel GmbH and Co KG
Original Assignee
Steinel 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8190425&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0123698(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Steinel GmbH and Co KG filed Critical Steinel GmbH and Co KG
Priority to AT83103976T priority Critical patent/ATE17297T1/de
Priority to DE8383103976T priority patent/DE3361675D1/de
Priority to EP83103976A priority patent/EP0123698B1/fr
Priority to FI832814A priority patent/FI75463C/fi
Priority to ZA836088A priority patent/ZA836088B/xx
Priority to AU18103/83A priority patent/AU567504B2/en
Priority to NO833004A priority patent/NO153789C/no
Priority to DK492483A priority patent/DK492483A/da
Priority to JP58206100A priority patent/JPS59203392A/ja
Priority to BR8306525A priority patent/BR8306525A/pt
Priority to AT84102135T priority patent/ATE31136T1/de
Priority to DE8484102135T priority patent/DE3467847D1/de
Priority to EP84102135A priority patent/EP0126858B1/fr
Priority to FI841317A priority patent/FI75462C/fi
Priority to DK178884A priority patent/DK178884A/da
Priority to AU26899/84A priority patent/AU2689984A/en
Priority to ES531798A priority patent/ES8503918A1/es
Priority to BR8401850A priority patent/BR8401850A/pt
Priority to NO841601A priority patent/NO841601L/no
Priority to ZA842952A priority patent/ZA842952B/xx
Priority to JP59081677A priority patent/JPS6035489A/ja
Publication of EP0123698A1 publication Critical patent/EP0123698A1/fr
Publication of EP0123698B1 publication Critical patent/EP0123698B1/fr
Application granted granted Critical
Expired legal-status Critical Current

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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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/46—Heating elements having the shape of rods or tubes non-flexible heating conductor mounted on insulating base

Definitions

  • the invention relates to an electric radiator according to the preamble of claim 1.
  • An electric heater according to the preamble of claim 1 is known from FR-A-931 619.
  • this heater several ceramic bodies with a circular cross section are placed on top of one another, which receive the heating wire helix in corresponding recesses lying essentially in the cross-sectional areas.
  • the stacked ceramic bodies only abut each other in the central area, while the cylindrical outer walls of adjacent ceramic bodies end at a distance from one another in order to enable fluid exchange between the hot fluid immediately surrounding the filament and the still cold fluid outside the radiator through the slots formed thereby.
  • the fluid exchange in this radiator is limited to convection and is also made more difficult by relatively high flow resistances. This results in a relatively poor heat transfer, with the result that the heating wire coil heats up to high temperatures even at low power.
  • an electric space heater in which a radiator is arranged in front of a fan, which consists of a retaining ring and a star-shaped carrier arranged therein, in which a heating wire coil is spirally stretched in a cross-sectional plane.
  • the heating wire coil is located in corresponding recesses in the star-shaped carrier and flows through perpendicularly to the said cross-sectional area.
  • the present invention has for its object to provide a radiator for heating a fluid flow, with which a high heating power can be delivered to the fluid to be heated.
  • the heating element according to the invention allows the flow of the fluid to be heated to be guided past the heating wire coil at a selectable flow rate.
  • the fluid passes through several sections of the heating wire turning device, so that it can be gradually heated up to a relatively high starting temperature, with a very high power output with a relatively compact design being achievable at a predetermined maximum temperature for the heating wire coil.
  • the low flow resistance for the fluid to be heated means that low-power blowers can be used that run quietly, which makes the radiator particularly attractive for household and do-it-yourself devices.
  • the embodiment according to claim 2 offers in addition to the easy assembly the advantage that the individual sections of the heating wire coil in the radiator are kept securely isolated from each other.
  • the radiator shown in Fig. 1 in assembled form consists of seven identically designed and superimposed radiator elements 1, one of which is shown enlarged in Fig. 3.
  • This radiator element 1 is made of ceramic or other heat-resistant material and in this embodiment consists of a hollow cylindrical ring 2, a cylindrical inner part 3 and 12 radial webs 4 in between, which are arranged evenly distributed around the circumference.
  • the webs 4 are designed as thin walls with mutually parallel surfaces that extend in the radial and axial directions.
  • the inner part 3 is provided with a central opening 6 with a rectangular cross-section, through which a clamping element 7 with a square cross-section can be guided, which serves to secure the individual radiator elements 1 against rotation and to axially clamp them against one another.
  • the end of the clamping element 7 is provided with a thread on which a nut is placed, as can be seen in FIG. 1.
  • three axial bores 5a, 5b and 5c offset from one another by 120 ° are formed through the inner part 3, two receiving grooves 5d and 5f opening on one side opening into the bore 5a, said bores 5a having openings adjacent to the associated web 4 or connect air flow channels.
  • the webs 4 each have a material recess 8 on both sides, the function of which is explained below.
  • the heating wire helix is embedded between the individual circular heating element elements 1.
  • the heating wire coil 9 in this exemplary embodiment according to FIG. 1 consists of six partial sections 9a each lying in a cross-sectional plane between two adjacent radiator elements 1 and six axially lying straight wire pieces 9b.
  • the coiled sections 9a lie on a pitch circle of 330 ° in the recesses 8 in the webs 4th
  • the heating wire coil 9 has two connections 10a and 10b which can be connected to an electrical energy source, of which the connection 10a leading to the section 9a shown on the far left in FIG. 2 is guided through the bores 5a one above the other in the individual heating element elements 1.
  • This connection 10a is led through one of the receiving grooves 5e or 5f to the outside to the flow channels.
  • the first section 9a lies in the recesses 8 in the webs 4 and thus directly in the flow channels. If one follows this connection 10a of the heating wire coil 9 through the first section 9a, the first axial section 9b of the heating wire coil 9 is passed through a first opening through the second heating element 1 from the left in FIG. 1.
  • connection 10b The straight section 9b connecting the second section 9a with the third section 9a is then guided in the third radiator element 1 through the next opening, and so on, until the connection 10b can be led out of the bore 6b through the last radiator element 1.
  • the further connection 10c shown in FIG. 2 represents a voltage tap which can be used for the power supply of a blower and which is led out of the bore 5c of the last heating element 1.
  • a marking groove 20 is formed on the outer circumference of the radiator elements 1.
  • the fully assembled radiator is charged with a fluid, usually air, in the direction of arrow P shown in FIG. 1, the air passing the individual parts of the filament 9 through the openings between the webs 4 and heating up there.
  • a fluid usually air
  • the individual webs 4 are usually aligned with one another so that they form a continuous wall. The exact alignment can be checked with the marking groove 20. The resulting air resistance is relatively low and the filament 9 is optimally flowed around.
  • the upstream regions of the filament 9 are normally cooled more than their downstream parts which are already flushed with hot air.
  • the downstream parts of the filament 9 are therefore hotter than the upstream parts.
  • the heating wire coil 9 is designed with a different slope of the helical areas. In the upstream sections, the resistance wires are therefore packed more densely and are washed around by less air per unit length than in the downstream areas, so that the heating wire coil 9 assumes an almost constant temperature over its entire length.
  • the individual sections 9a of the heating wire coil 9 have the following number of turns, the number of turns decreasing downstream.

Landscapes

  • Resistance Heating (AREA)
  • Cleaning And Drying Hair (AREA)
  • Luminescent Compositions (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Pipe Accessories (AREA)
  • Cookers (AREA)

Claims (3)

1. Corps chauffant pour le chauffage d'un fluide comportant un dispositif de retenue d'une hélice de fil chauffant (9), constitué de plusieurs corps chauffants de section circulaire disposés l'un sur l'autre axialement sur lesquels sont formés des évidements (8) dans lesquels est logée l'hélice de fil chauffant (9), dans des endroits situés l'un à côté de l'autre, caractérisé en ce que les parois externes (2) des éléments de corps chauffants (1) s'étendent en étant placées l'une après l'autre en une paroi cylindrique fermée du dispositif de retenue et en ce que dans les éléments de corps chauffants des parois externes (2) sont prévus des filets (4) s'étendant radialement vers l'intérieur qui présentent les évidements (8) de retenue de l'hélice de fil chauffant (9) et entre lesquels sont fixés axialement des canaux d'écoulement de fluide.
2. Corps chauffant selon la revendication 1, caractérisé en ce que les tronçons (9a) de l'hélice de fil chauffant (9) sont disposés en cercle pratiquement fermé dans des plans de section entre deux éléments de corps chauffants voisins, et que les parties axiales (9b) reliant les tronçons (9a) pris deux à deux de l'hélice de fil chauffant (9) dans des éléments de fil chauffant (1) voisins l'un de l'autre passent à chaque fois par des perforations décalées radialement d'un filet (4).
3. Corps chauffant selon la revendication 1 ou 2, caractérisé en ce que dans une partie intérieure centrale (3) sont formées des perforations axiales (5a, 5b, 5c).
EP83103976A 1983-04-22 1983-04-22 Elément chauffant électrique pour le chauffage d'un fluide Expired EP0123698B1 (fr)

Priority Applications (21)

Application Number Priority Date Filing Date Title
AT83103976T ATE17297T1 (de) 1983-04-22 1983-04-22 Elektrischer heizkoerper zum erhitzen eines fluidstroms.
DE8383103976T DE3361675D1 (en) 1983-04-22 1983-04-22 Electric heating element for heating a fluid
EP83103976A EP0123698B1 (fr) 1983-04-22 1983-04-22 Elément chauffant électrique pour le chauffage d'un fluide
FI832814A FI75463C (fi) 1983-04-22 1983-08-04 Eluppvaermningsanordning foer uppvaermning av en stroemning.
ZA836088A ZA836088B (en) 1983-04-22 1983-08-18 Electric heater for heating a fluid stream
AU18103/83A AU567504B2 (en) 1983-04-22 1983-08-18 Electric heater element
NO833004A NO153789C (no) 1983-04-22 1983-08-19 Elektrisk varmelegeme for oppvarming av en fluidumstroem.
DK492483A DK492483A (da) 1983-04-22 1983-10-27 Elektrisk varmelegeme til opvarmning af en fluidstroem
JP58206100A JPS59203392A (ja) 1983-04-22 1983-11-04 電気ヒ−タ
BR8306525A BR8306525A (pt) 1983-04-22 1983-11-28 Corpo de aquecimento eletrico para o aquecimento de uma corrente de fluido
AT84102135T ATE31136T1 (de) 1983-04-22 1984-02-29 Elektrischer heizkoerper.
DE8484102135T DE3467847D1 (en) 1983-04-22 1984-02-29 Electrical heating element
EP84102135A EP0126858B1 (fr) 1983-04-22 1984-02-29 Corps de chauffe électrique
FI841317A FI75462C (fi) 1983-04-22 1984-04-02 Eluppvaermningsanordning.
DK178884A DK178884A (da) 1983-04-22 1984-04-05 Elektrisk varmelegeme
AU26899/84A AU2689984A (en) 1983-04-22 1984-04-17 Electric fluid heater
BR8401850A BR8401850A (pt) 1983-04-22 1984-04-18 Corpo de aquecimento eletrico
ES531798A ES8503918A1 (es) 1983-04-22 1984-04-18 Radiador electrico para el calentamiento de un fluido
NO841601A NO841601L (no) 1983-04-22 1984-04-18 Elektrisk varmelegeme.
ZA842952A ZA842952B (en) 1983-04-22 1984-04-19 Electric heater assembly
JP59081677A JPS6035489A (ja) 1983-04-22 1984-04-23 電気ヒーターアツセンブリ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83103976A EP0123698B1 (fr) 1983-04-22 1983-04-22 Elément chauffant électrique pour le chauffage d'un fluide

Publications (2)

Publication Number Publication Date
EP0123698A1 EP0123698A1 (fr) 1984-11-07
EP0123698B1 true EP0123698B1 (fr) 1986-01-02

Family

ID=8190425

Family Applications (2)

Application Number Title Priority Date Filing Date
EP83103976A Expired EP0123698B1 (fr) 1983-04-22 1983-04-22 Elément chauffant électrique pour le chauffage d'un fluide
EP84102135A Expired EP0126858B1 (fr) 1983-04-22 1984-02-29 Corps de chauffe électrique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP84102135A Expired EP0126858B1 (fr) 1983-04-22 1984-02-29 Corps de chauffe électrique

Country Status (10)

Country Link
EP (2) EP0123698B1 (fr)
JP (2) JPS59203392A (fr)
AT (1) ATE17297T1 (fr)
AU (1) AU567504B2 (fr)
BR (1) BR8306525A (fr)
DE (2) DE3361675D1 (fr)
DK (1) DK492483A (fr)
FI (1) FI75463C (fr)
NO (1) NO153789C (fr)
ZA (2) ZA836088B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61189260U (fr) * 1985-05-17 1986-11-26
JPS62202486A (ja) * 1986-02-28 1987-09-07 白光株式会社 温風発生器のヒ−タ−アセンブリ用碍子
IT1189089B (it) * 1986-04-18 1988-01-28 Gaetano Piazzola Scambiatore di calore ad elementi modulari,particolarmente studiato per cilindri di estrusione,presse ad iniezione,trafilatrici e simili di macchine per la lavorazione di materie plastiche
IT1191776B (it) * 1986-05-02 1988-03-23 Gaetano Piazzola Struttura di elementi modulari compinibili per la realizzazione di gruppi termoregolatori e per cilindri di plastificazione e parti di macchine per la lavorazione di materie plastiche e simili
FR2598847B1 (fr) * 1986-05-13 1990-08-17 Hennequin Cie Ets Dispositif electrique de resistances de charge a ventilation forcee
JPH0723917Y2 (ja) * 1988-10-18 1995-05-31 貞義 竹綱 電熱線用螺旋碍子
JPH0581983U (ja) * 1991-12-12 1993-11-05 白光株式会社 温風発生器のヒーターアセンブリ用碍子
DE19839044A1 (de) * 1998-08-28 2000-03-02 Steinel Gmbh & Co Kg Elektrische Heizvorrichtung und Verfahren zum Betreiben einer Heizvorrichtung
JP4592910B2 (ja) * 2000-10-06 2010-12-08 太洋電機産業株式会社 熱風式半田処理装置のヒーター
CN104093496B (zh) * 2011-12-09 2017-05-24 伊利诺斯工具制品有限公司 用于热熔型粘合剂或其他热塑性材料分配涂敷器的泡沫热交换器
DE102021215100A1 (de) 2021-12-30 2023-07-06 BSH Hausgeräte GmbH Haushalts-Dampfgargerät

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1514857A (en) * 1923-07-27 1924-11-11 Moore Company Ltd D Fire bar for electric water heaters
FR37959E (fr) * 1929-11-21 1931-03-03 Vosswerke Ag élément de support pour fils de chauffage électrique
US2097705A (en) * 1936-06-02 1937-11-02 Stuck Everett Electric water heater
US2278180A (en) * 1940-01-23 1942-03-31 Lewis Edward Electric hair drier
FR931619A (fr) * 1943-10-15 1948-02-27 Alsthom Cgee Nouvelle disposition pour résistances électriques, notamment pour corps de chauffeà immersion
GB951947A (en) * 1959-09-14 1964-03-11 Philips Nv Improvements in or relating to electric heating apparatus
DE1176293B (de) * 1960-07-11 1964-08-20 Licentia Gmbh Elektrisches Drahtheizelement, insbesondere fuer Haartrockner
FR1348098A (fr) * 1963-02-08 1964-01-04 Perfectionnement aux chauffe-eau
US3267255A (en) * 1964-01-30 1966-08-16 Gen Electric Forced air electric baseboard heater
GB1233528A (fr) * 1967-06-03 1971-05-26
GB1267803A (en) * 1968-04-03 1972-03-22 Laporte Titanium Ltd Improvements in and relating to the heating of gases
DE2349888A1 (de) * 1973-10-04 1975-04-17 Wigo Widmann Soehne Gottlob Heizelement fuer haartrockner
DE2432957A1 (de) * 1974-07-09 1976-01-29 Jones Jun Von hand zu haltendes mundstueck zum erhitzen eines unter druck zugefuehrten stroemenden mediums
DE2849266C2 (de) * 1978-11-14 1982-02-04 Fritz Eichenauer GmbH & Co KG, 6744 Kandel Elektrischer Heizkörper für gasförmige Medien

Also Published As

Publication number Publication date
DE3467847D1 (en) 1988-01-07
FI832814A (fi) 1984-10-23
EP0126858B1 (fr) 1987-11-25
NO153789C (no) 1986-05-28
DK492483D0 (da) 1983-10-27
JPS59203392A (ja) 1984-11-17
JPS6035489A (ja) 1985-02-23
FI75463B (fi) 1988-02-29
FI75463C (fi) 1988-06-09
NO153789B (no) 1986-02-10
DK492483A (da) 1984-10-23
ZA836088B (en) 1984-08-29
JPH0226357B2 (fr) 1990-06-08
DE3361675D1 (en) 1986-02-13
AU1810383A (en) 1984-10-25
NO833004L (no) 1984-10-23
ATE17297T1 (de) 1986-01-15
AU567504B2 (en) 1987-11-26
EP0126858A1 (fr) 1984-12-05
ZA842952B (en) 1984-11-28
EP0123698A1 (fr) 1984-11-07
BR8306525A (pt) 1985-03-12
JPH0358157B2 (fr) 1991-09-04
FI832814A0 (fi) 1983-08-04

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