DE2524840A1 - ELECTRIC HEATING PLATE - Google Patents

ELECTRIC HEATING PLATE

Info

Publication number
DE2524840A1
DE2524840A1 DE19752524840 DE2524840A DE2524840A1 DE 2524840 A1 DE2524840 A1 DE 2524840A1 DE 19752524840 DE19752524840 DE 19752524840 DE 2524840 A DE2524840 A DE 2524840A DE 2524840 A1 DE2524840 A1 DE 2524840A1
Authority
DE
Germany
Prior art keywords
heating plate
printed circuit
electric heating
plate
circuit
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.)
Pending
Application number
DE19752524840
Other languages
German (de)
Inventor
Segura Rueda
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.)
Representaciones Unidas S A Er
Original Assignee
Representaciones Unidas S A Er
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 Representaciones Unidas S A Er filed Critical Representaciones Unidas S A Er
Publication of DE2524840A1 publication Critical patent/DE2524840A1/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/20Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/26Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C7/00Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/003Thick film resistors
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/003Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013Heaters using resistive films or coatings
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017Manufacturing methods or apparatus for heaters
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/037Heaters with zones of different power density
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Surface Heating Bodies (AREA)
  • Resistance Heating (AREA)
  • Control Of Resistance Heating (AREA)

Description

Patentanwälte 8Q00 München 2 2 ■ Steinsdorfstraße 21 - 22 · Telefon 089 / 29 84 Patent Attorneys 8Q00 Munich 2 2 ■ Steinsdorfstrasse 21 - 22 · Telephone 089/29 84

A 7425A 7425

EMPRESA DE REPRESENTACIONES UNIDAS, S.A. -ERUSA Avenida del Generalisimo, 73 -8°^ MADRID / SpanienEMPRESA DE REPRESENTACIONES UNIDAS, S.A. -ERUSA Avenida del Generalisimo, 73 -8 ° ^ MADRID / Spain

E lektr is ehe HeizplatteE lectric is before heating plate

609832/0571609832/0571

Die Erfindung bezieht sich auf eine Elektrische Heizplatte mit einer gedruckten Schaltung, die mittels eines beliebigen Verfahrens auf eine Platte mit dielektrischen Eigenschaften aufgebracht ist. Bei den dielektrischen Platten handelt es sich normalerweise um Metallbleche mit einem dielektrischen Überzug aus glasierter Keramik, auf die anschliessend die gedruckte Schaltung aufgebracht wird, die den elektrischen Widerstand bildet.The invention relates to an electric heating plate with a printed circuit, which by means of any method is applied to a plate with dielectric properties. The dielectric panels are usually Metal sheets with a dielectric coating made of glazed ceramic, onto which the printed circuit is then applied which forms the electrical resistance.

Die bisher bekannten Heizplatten v/eisen den Nachteil auf, dass während des Betriebes thermische Ungleichmässigkeiten auf der Oberfläche der Platte auftreten, die darauf zurückzuführen sind, dass die gedruckte Schaltung gleichförmig ist, das heisst der Querschnitt ist konstant. Wenn eine derartige Heizplatte während des Betriebes senkrecht aufgestellt bzw. an der Wand befestigt sind, weist der obere Teil eine höhere Temperatur auf als der untere Teil. Dieses ist auf die KonvektiorEströme zurückzuführen, die den oberen Teil der Heizplatte während ihres Anstiegs mit einer höheren Temperatur erreichen.The previously known heating plates have the disadvantage that thermal irregularities occur during operation occur on the surface of the board due to the fact that the printed circuit is uniform, i.e. the cross-section is constant. If such a heating plate is set up vertically or attached to the wall during operation, the upper part has a higher temperature than the lower part. This is due to the convection currents that the Reach the upper part of the heating plate at a higher temperature as it rises.

Diese thermischen Sprünge der Heizfläche verursachen Spannungen und führen zu unkontrollierbaren Deformierungen, die die gedruckte Schaltung zerstören können.These thermal jumps in the heating surface cause stresses and lead to uncontrollable deformations that can destroy the printed circuit.

Äusserdeta ist die thermische Leistung der bekannten Heizplatten mangelhaft.Äusserdeta is the thermal output of the known heating plates inadequate.

Es ist Aufgabe der Erfindung, die vorgenannten Nachteile auszuschalten, was dadurch erreicht wird, dass die erfindungsgemässe elektrische Heizplatte einen unterschiedlichen Widerstandsxvert der gedruckten Schaltung auf der Heizfläche aufweist, wq-It is the object of the invention to eliminate the aforementioned disadvantages, which is achieved in that the inventive electrical heating plate has a different resistance value of the printed circuit on the heating surface, wq-

ό durch eine veränderliche spezifische Belastung in Watt/cm inό due to a variable specific load in watts / cm in

Längsrichtung erhalten wird, und zwar gemäss den Konstanten der Verlustleistung der Platte gemäss die Arbeitsstellung der- *~ selben, wodurch eine gleichmässige Temperatur der Platte an LO allen Punkten der Oberfläche erreicht wird. οLongitudinal direction is obtained, namely according to the constants of the power loss of the plate according to the working position of the * ~ same, whereby a uniform temperature of the plate LO is reached at all points on the surface. ο

Γ? Die Unregelmässigkeit des Widerstandswertes der gedruckten co Schaltung wird erfindungsgemäss dadurch erreicht, dass die Pro-ο portion der gedruckten Schaltung je Oberflächeneinheit" geändert ., wird. Hierdurch erhält man eine Art "kompensierte gedruckte Schaltung", denn je grosser der Querschnitt des elektrischen Leitelementes je Längseinheit, je kleiner der Widerstand undΓ? The irregularity of the resistance value of the printed co circuit is achieved according to the invention in that the Pro-ο portion of the printed circuit per surface unit "changed ., will. This gives a kind of "compensated printed circuit" because the larger the cross-section of the electrical Guide element per longitudinal unit, the smaller the resistance and

damit eine niedrigere Temperatur.thus a lower temperature.

Durch eine versuchsmässig ohne Schwierigkeit bestimmbare Oberflächenänderung der gedruckten Schaltung auf der Platte, wird die Gleichmässigkeit der ausgestrahlten Temperatur erreicht.By means of a test that can be determined without difficulty Surface change of the printed circuit on the plate, the uniformity of the radiated temperature is achieved.

Eine elektrische Heizplatte, deren gedruckte Schaltung dem Erfindungsgedanken entspricht, ist in den beiliegenden Zeichnungen dargestellt.An electric heating plate, the printed circuit of which corresponds to the inventive idea, is shown in the accompanying drawings shown.

Die Figur .1\zeigt eine schematische Ansicht dieser gedruckten Schaltung, die Figur 2 eine andere Ausführungsform und die Figur 3 einen Schmitt gemäss der Linie A-B der Figur 2..Figure .1 \ shows a schematic view of this printed circuit, Figure 2 shows another embodiment and Figure 3 shows a Schmitt along the line A-B of Figure 2 ..

In den Zeichnungen ist die die gedruckte Schaltung tragende Platte mit (1) bezeichnet,die über die Anschlüsse (2) an das Stromnetz" angeschlossen wird.In the drawings, the board carrying the printed circuit is denoted by (1), which is connected to the Power grid "is connected.

Wie ersichtlich weist de gedruckte Schaltung Zonen (3) grösserer Breite als die Zonen (4-) auf, so dass in den erstenAs can be seen, the printed circuit zones (3) have a greater width than the zones (4-), so that in the first

(3) ein geringerer Widerstandswert herrscht als in den zweiten(3) there is a lower resistance value than in the second

(4) und damit auch eine geringere Wärmeabgabe.(4) and thus also a lower heat emission.

Aus der 'Figur 3 ist ersichtlich, dass die Zonen (3) nicht nur eine grössere Flächenausdehnung als die Zonen (A-) aufweisen, sondern auch eine grössere Dicke haben können·From 'Figure 3 it can be seen that the zones (3) do not only have a larger area than the zones (A-), but can also have a greater thickness

609832/0571609832/0571

Claims (1)

PATENTANSPRUCHPATENT CLAIM !.-Elektrische Heizplatte, bestehend aus einer dielektrischen
Platte mit zumindest auf einer Seite angebrachten gedruckten
Schaltung, dadurch gekennzeichnet, dass der Querschnitt der
gedruckten Schaltung sowohl flächen-als euch dickenmässig
verschieden ist, wodurch der Wieterstandswert in den verschiedenen Zonen der Schaltung unterschiedlich ist, wodurch eine gleich-r massige Temperatur an allen Stellen der Heizplatte erreicht v;ird.
! .- Electric heating plate, consisting of a dielectric
Plate with printed on at least one side
Circuit, characterized in that the cross section of the
printed circuit both in terms of area and thickness
is different, as a result of which the resistance value in the various zones of the circuit is different, whereby a uniform temperature is achieved at all points on the heating plate.
609832/0571609832/0571
DE19752524840 1975-01-31 1975-06-04 ELECTRIC HEATING PLATE Pending DE2524840A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES43436575 1975-01-31

Publications (1)

Publication Number Publication Date
DE2524840A1 true DE2524840A1 (en) 1976-08-05

Family

ID=8468533

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752524840 Pending DE2524840A1 (en) 1975-01-31 1975-06-04 ELECTRIC HEATING PLATE

Country Status (7)

Country Link
JP (1) JPS5191034A (en)
BE (1) BE829709A (en)
DE (1) DE2524840A1 (en)
DK (1) DK240975A (en)
FR (1) FR2299782A1 (en)
LU (1) LU72577A1 (en)
NL (1) NL7507093A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069298A1 (en) * 1981-07-08 1983-01-12 E.G.O. Elektro-Geräte Blanc u. Fischer Cooking plate
FR2554301A1 (en) * 1983-10-27 1985-05-03 Pace Inc ELECTRIC HEATING ASSEMBLY AND SOLDERING IRON COMPRISING SAME
DE3437397A1 (en) * 1984-10-12 1986-04-17 Drägerwerk AG, 2400 Lübeck INFRARED RADIANT
US6917014B2 (en) * 2000-11-03 2005-07-12 R. A. Jones & Co. Inc. Sealing system for forming thermal seals and methods of operation thereof
EP1614654A2 (en) * 2004-07-06 2006-01-11 Hewlett-Packard Development Company, L.P. Electronic device having a plurality of conductive beams
EP2884254A1 (en) * 2013-12-11 2015-06-17 Morpho Detection, LLC Apparatus, system and method for flash heating
EP3614806A1 (en) * 2018-08-21 2020-02-26 LG Electronics Inc. -1- Electric heater

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI833076A0 (en) * 1983-08-30 1983-08-30 Labsystems Oy ANORDNING FOER MAETNING AV UPPVAERMBARA VAETSKEPROV
US4633068A (en) * 1984-02-15 1986-12-30 Flexwatt Corporation Electrical heating device
JPS61103893U (en) * 1984-12-13 1986-07-02
JPS644090U (en) * 1987-06-26 1989-01-11
JPS647793U (en) * 1987-07-03 1989-01-17
FR2621207A1 (en) * 1987-09-28 1989-03-31 Electrothermique Cie Europ Electrical heating device
JPH02186585A (en) * 1988-11-22 1990-07-20 Toshiba Lighting & Technol Corp Heating body
GB9020400D0 (en) * 1990-09-19 1990-10-31 Raychem Sa Nv Electrical heating tape
DE102009010666A1 (en) * 2009-02-27 2010-09-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Electric heating

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069298A1 (en) * 1981-07-08 1983-01-12 E.G.O. Elektro-Geräte Blanc u. Fischer Cooking plate
US4527050A (en) * 1981-07-08 1985-07-02 E.G.O. Elektro-Gerate Blanc Und Fischer Hotplate
FR2554301A1 (en) * 1983-10-27 1985-05-03 Pace Inc ELECTRIC HEATING ASSEMBLY AND SOLDERING IRON COMPRISING SAME
DE3437397A1 (en) * 1984-10-12 1986-04-17 Drägerwerk AG, 2400 Lübeck INFRARED RADIANT
US6917014B2 (en) * 2000-11-03 2005-07-12 R. A. Jones & Co. Inc. Sealing system for forming thermal seals and methods of operation thereof
EP1614654A2 (en) * 2004-07-06 2006-01-11 Hewlett-Packard Development Company, L.P. Electronic device having a plurality of conductive beams
EP1614654A3 (en) * 2004-07-06 2007-05-02 Hewlett-Packard Development Company, L.P. Electronic device having a plurality of conductive beams
EP2884254A1 (en) * 2013-12-11 2015-06-17 Morpho Detection, LLC Apparatus, system and method for flash heating
US9528969B2 (en) 2013-12-11 2016-12-27 Morpho Detection, Inc. Apparatus, system and method for flash heating
EP3614806A1 (en) * 2018-08-21 2020-02-26 LG Electronics Inc. -1- Electric heater
US11435088B2 (en) 2018-08-21 2022-09-06 Lg Electronics Inc. Electric heater and cooking appliance having same

Also Published As

Publication number Publication date
FR2299782A1 (en) 1976-08-27
LU72577A1 (en) 1975-10-08
NL7507093A (en) 1976-08-03
DK240975A (en) 1976-08-01
JPS5191034A (en) 1976-08-10
BE829709A (en) 1975-09-15

Similar Documents

Publication Publication Date Title
DE2524840A1 (en) ELECTRIC HEATING PLATE
DE2810440A1 (en) MICROWAVE TAN CONTAINER
DE3703768C2 (en)
CH622876A5 (en)
DE69523141T2 (en) Microwave oven combined with induction heating cooker
CH621221A5 (en) Hot/cooking plate, in particular a glass-ceramic hot/cooking plate
EP3136822A1 (en) Method for determining a temperature
DE2016697C3 (en) Press plate for a plate press
DE60101500T2 (en) Clothes dryer with PTC resistance heating
DE2725175A1 (en) METHOD AND DEVICE FOR BREAD MAKING
DE3522546A1 (en) CIRCUIT ARRANGEMENT IN ELECTRIC OVENS FOR HEATING POWER CONTROL
CH248281A (en) Process for drying fibrous bodies and other moisture-containing bodies by means of electricity.
DE9203459U1 (en) One-handed portable heating device
DE614234C (en) High-performance circular electric hotplate
DE1121246B (en) Dielectric heating device with a high frequency generator
DE2062442A1 (en) Electrically heated cladding for heaters or the like
EP0057385B1 (en) Method for the direct electrical resistance heating of metal workpieces
DE633655C (en) Electric cooking and heating device with an iron or steel plate heated by eddy currents
DE2734252B1 (en) Press plate
DE2347766A1 (en) HEATING ELEMENT
DE2000655C (en) Electrically heated rear window for motor vehicles
DE401790C (en) Electric radiator
AT151186B (en) Method and device for increasing the effect of the last wet press of paper machines u. like
DEP0010479DA (en) End plate for electric cooking and heating devices, in particular for hotplates, table stoves or the like.
DE885830C (en) Method and arrangement for drying fibrous bodies