EP0530525B1 - Dispositif de chauffage pour chauffer des medias coulants - Google Patents

Dispositif de chauffage pour chauffer des medias coulants Download PDF

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Publication number
EP0530525B1
EP0530525B1 EP92113373A EP92113373A EP0530525B1 EP 0530525 B1 EP0530525 B1 EP 0530525B1 EP 92113373 A EP92113373 A EP 92113373A EP 92113373 A EP92113373 A EP 92113373A EP 0530525 B1 EP0530525 B1 EP 0530525B1
Authority
EP
European Patent Office
Prior art keywords
pocket
ptc thermistors
supporting body
recesses
heat exchanger
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 - Lifetime
Application number
EP92113373A
Other languages
German (de)
English (en)
Other versions
EP0530525A1 (fr
Inventor
Robert Dipl.-Ing. Karner
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.)
TDK Electronics AG
Original Assignee
Siemens Matsushita Components 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 Siemens Matsushita Components GmbH and Co KG filed Critical Siemens Matsushita Components GmbH and Co KG
Publication of EP0530525A1 publication Critical patent/EP0530525A1/fr
Application granted granted Critical
Publication of EP0530525B1 publication Critical patent/EP0530525B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds

Definitions

  • the present invention relates to a heating device for heating flowing media with a heat exchanger heated by PTC thermistors according to the preamble of the patent claim.
  • a heating device of the type mentioned above is known from DE-OS 40 13 212.
  • PTC thermistors for heating a heat exchanger can be inserted directly or also by means of a carrier body into a pocket in a metal body serving as a heat exchanger, a spring inserted between the PTC thermistors each having a surface with a metallic contact assignment against an assigned surface of the metal body presses.
  • the spring acts on the other metallic contact assignment, so that the PTC thermistor is electrically connected via the metal body forming the heat exchanger on the one hand and the spring on the other.
  • the pocket for receiving the PTC thermistor in the metal body serving as the heat exchanger has a rectangular cross-section.
  • the metallic contact assignments of the PTC thermistor therefore rub against the assigned surfaces of the pocket, so that there is a risk of abrasion of the metallic contact assignments and thus insufficient electrical contact between the PTC thermistor and the metal body.
  • the present invention has for its object to develop a heating device of the known type such that abrasion of the metallic contact assignments of the PTC thermistor is avoided when inserting PTC thermistors in the pocket of the heat exchanger.
  • a pocket for receiving a carrier body for PTC thermistors is provided in a metal body 1 provided as a heat exchanger for a heating device for heating flowing media.
  • This pocket 2 has opposing surfaces 3 which are chamfered in a direction perpendicular to the plane of the drawing such that the cross section of the pocket 2 decreases inwards from the insertion side lying in the plane of the drawing - perpendicular to the plane of the drawing.
  • a carrier body 4 for PTC thermistor according to FIGS. 2 and 3, which can be made of plastic, has surfaces 5 assigned to the surfaces 3 of the metal body 1 with a corresponding bevel, the carrier body 4 with its smaller cross-section end being seen perpendicular to the plane of the drawing in FIG the metal body 1 can be used.
  • the cuboid carrier body 4 is provided with recesses 6 on opposite sides from the surfaces 5 for receiving disc-shaped PTC thermistors (not shown). In the area of these recesses 6, an opening 7 is provided, so that a contact spring (not shown) can be pushed between the PTC thermistors located in the recesses 6 via a channel 8, and these springs after insertion of the carrier body 4 presses into the pocket 2 of the metal body 1 against the pocket surfaces 3 and to contact.
  • a contact spring (not shown) can be pushed between the PTC thermistors located in the recesses 6 via a channel 8, and these springs after insertion of the carrier body 4 presses into the pocket 2 of the metal body 1 against the pocket surfaces 3 and to contact.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Claims (1)

  1. Dispositif de chauffage de milieux qui s'écoulent, comprennent un échangeur de chaleur (1), en métal conducteur de chaleur, et chauffé par une thermistance à coefficient de température positif, une poche (2) en forme de fente prévue dans l'échangeur de chaleur (1) et une pièce de support (4) pour thermistance à coefficient de température positif de forme parallélépipédique et adaptée à la poche (2), cette pièce présentant sur des faces opposées (5) des évidements (6) de réception des thermistances à coefficient de température positif, ainsi qu'un canal intérieur (8) de réception d'un ressort de contact, de sorte que, lors de l'introduction dans la poche (2) de la pièce de support (4) avec les thermistances à coefficient de température positif placées dans ses évidements (6), les thermistances à coefficient de température positif sont pressées contre les surfaces de poche (3) qui se trouvent en face d'elles,
       caractérisé en ce qu'au moins les faces (5) de la pièce de support (4), qui présentent les évidements (6) ainsi que les surfaces (3) de la poche (2) qui sont en face d'elles sont biseautées de manière à diminuer la section transversale de la pièce de support (4) et de la poche (2) du côté d'introduction vers l'intérieur.
EP92113373A 1991-08-12 1992-08-05 Dispositif de chauffage pour chauffer des medias coulants Expired - Lifetime EP0530525B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4126633 1991-08-12
DE4126633 1991-08-12

Publications (2)

Publication Number Publication Date
EP0530525A1 EP0530525A1 (fr) 1993-03-10
EP0530525B1 true EP0530525B1 (fr) 1994-07-20

Family

ID=6438149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113373A Expired - Lifetime EP0530525B1 (fr) 1991-08-12 1992-08-05 Dispositif de chauffage pour chauffer des medias coulants

Country Status (6)

Country Link
US (1) US5262619A (fr)
EP (1) EP0530525B1 (fr)
JP (1) JPH05223343A (fr)
CA (1) CA2075689A1 (fr)
DE (1) DE59200295D1 (fr)
ES (1) ES2057952T3 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5668521A (en) * 1995-03-22 1997-09-16 Littelfuse, Inc. Three piece female blade fuse assembly having fuse link terminal with a clip receiving portion
US6215388B1 (en) 1996-09-27 2001-04-10 Therm-Q-Disc, Incorporated Parallel connected PTC elements
DE19846282B4 (de) * 1998-10-08 2006-12-07 Mann + Hummel Gmbh Elektrische Heizeinrichtung
DE10111336B4 (de) * 2001-03-08 2008-02-14 Heraeus Electro-Nite International N.V. Sensor, insbesondere Temperatur-Sensor, mit einem Messwiderstand
ATE330165T1 (de) † 2004-01-23 2006-07-15 Dbk David & Baader Gmbh Heizclip für eine fluidleitung
US8232509B2 (en) * 2006-11-16 2012-07-31 S.C. Johnson & Son, Inc. Retainer system
US7288748B1 (en) 2006-12-21 2007-10-30 S.C. Johnson & Son, Inc. PTC electrical heating devices
US9020914B2 (en) * 2008-06-13 2015-04-28 Sony Corporation Automatic song selection
JP5461138B2 (ja) * 2009-09-30 2014-04-02 株式会社ケーヒン Ｐｔｃヒータユニット
DE102010037479B4 (de) * 2010-09-10 2023-03-16 Dbk David + Baader Gmbh Elektrischer Heizer
DE102011017387A1 (de) * 2010-12-17 2012-06-21 Epcos Ag Thermoelektrisches Modul und Verwendung eines thermoelektrischen Moduls
EP2700121B8 (fr) 2011-04-21 2015-05-13 Intelligent Energy Limited Générateur d'hydrogène à rendement volumique amélioré
EP2685784B1 (fr) * 2012-07-11 2016-09-14 MAHLE Behr GmbH & Co. KG Heating device
US10093538B2 (en) 2012-11-19 2018-10-09 Intelligent Energy Inc. Heater assembly, hydrogen generator and method of providing hydrogen gas
US9243560B2 (en) * 2012-11-19 2016-01-26 Intelligent Energy Inc. Hydrogen generator having a thermal actuator
US9725316B2 (en) 2013-03-07 2017-08-08 Intelligent Energy Inc. Hydrogen generator with replaceable fuel unit and a method of producing hydrogen gas
DE102019212443A1 (de) 2019-08-20 2021-02-25 Eberspächer Catem Gmbh & Co. Kg Elektrischer Lastwiderstand

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2816076A1 (de) * 1978-04-13 1979-10-25 Siemens Ag Heizer mit ferroelektrischem keramik-heizelement
DE2840242C2 (de) * 1978-09-15 1984-08-23 Siemens AG, 1000 Berlin und 8000 München Heizeinrichtung zur Vorwärmung von Heizöl
US4395623A (en) * 1980-03-04 1983-07-26 Murata Manufacturing Co., Ltd. Self-regulating electric heater
JPS60112281A (ja) * 1983-11-18 1985-06-18 松下電工株式会社 ヒ−タ
FR2568438B1 (fr) * 1984-07-25 1986-10-17 Seb Sa Chaudiere pour appareil menager electrique
EP0194507B1 (fr) * 1985-03-14 1989-01-25 Siemens Aktiengesellschaft Elément chauffant pour chauffer des milieux d'écoulement, en particulier sous forme gazeuse
US4899032A (en) * 1987-03-12 1990-02-06 Siemens Aktiengesellschaft Electric heating element utilizing ceramic PTC resistors for heating flooring media
DE4013212A1 (de) * 1989-05-30 1990-12-06 Siemens Ag Heizelement zum erwaermen stroemender medien
US4998008A (en) * 1989-10-31 1991-03-05 Walther Menhardt Heating element
JP2529252Y2 (ja) * 1990-04-05 1997-03-19 日本油脂株式会社 正特性サーミスタ装置
US5086747A (en) * 1990-08-22 1992-02-11 Texas Instruments Incorporated Internal combustion engine with fuel heater

Also Published As

Publication number Publication date
US5262619A (en) 1993-11-16
JPH05223343A (ja) 1993-08-31
CA2075689A1 (fr) 1993-02-13
DE59200295D1 (de) 1994-08-25
EP0530525A1 (fr) 1993-03-10
ES2057952T3 (es) 1994-10-16

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