EP0379874A1 - Dispositif de fixation pour éléments PTC - Google Patents

Dispositif de fixation pour éléments PTC Download PDF

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Publication number
EP0379874A1
EP0379874A1 EP90100250A EP90100250A EP0379874A1 EP 0379874 A1 EP0379874 A1 EP 0379874A1 EP 90100250 A EP90100250 A EP 90100250A EP 90100250 A EP90100250 A EP 90100250A EP 0379874 A1 EP0379874 A1 EP 0379874A1
Authority
EP
European Patent Office
Prior art keywords
contact plate
holding part
frame
part according
insulating
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
EP90100250A
Other languages
German (de)
English (en)
Other versions
EP0379874B1 (fr
Inventor
Roland Starck
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6372792&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0379874(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fritz Eichenauer GmbH and Co KG filed Critical Fritz Eichenauer GmbH and Co KG
Publication of EP0379874A1 publication Critical patent/EP0379874A1/fr
Application granted granted Critical
Publication of EP0379874B1 publication Critical patent/EP0379874B1/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

Definitions

  • the invention relates to a holding part for PTC elements with an insulating frame and at least one contact plate.
  • PTC radiators with PTC elements generally have a plurality of PTC elements which are arranged next to one another, preferably in a row, and are covered by common contact plates, on the sides of which facing away from the PTC elements, insulating plates may also be arranged. This arrangement is held together in any suitable manner, for example by brackets, by terminal strips, by insertion into a casing or the like. Reference is made, for example, to DE-OS 28 45 965, DE-OS 28 45 894 and DE-OS 29 48 591.
  • this object is achieved by a holding part with an insulating frame and at least one contact plate, which is characterized in that the contact plate is firmly connected to the insulating frame.
  • an insulating frame surrounding the PTC elements on their narrow sides is not sufficient, since even if a base is held against it from below, for example a contact plate, there is a risk that that the insulating frame and documents slip relative to each other, so that a single PTC block can fall out of the frame.
  • the invention therefore provides that the contact plate and the insulating frame are firmly connected to one another.
  • fixed means that these are connected to one another in such a way that they cannot be solved without great effort, in particular cannot accidentally detach from one another or move relative to one another.
  • a screw connection could also be provided.
  • the contact plate is riveted to the insulating frame in the region of one of its end faces.
  • the fixed contact plate is arranged on one side of the frame so that the individual PTC elements or stones can be inserted into the frame part from the opposite side and prevented from falling through the contact plate.
  • the further contact element such as a further contact plate or a profile contact body with a U-cross section
  • the further contact element can be placed on the side of the frame opposite the fixed contact plate connected to the frame and the inserted PTC elements, whereupon for further assembly, namely against if necessary, placing insulating plates on the contact plate, these insulating bodies protecting further covering elements, such as stable covering plates etc., can be placed.
  • the holding part according to the invention provides that a connecting lug is riveted to the contact plate and / or that a connecting lug is formed in one piece with the contact plate. If the contact plate is already firmly connected to the insulating frame, it makes sense to then also form a connecting lug, namely the one connected to the contact plate, in one piece with it and / or also to firmly connect it to the insulating frame, such as riveting.
  • a relative pivoting of the frame and the contact plate could also be avoided by two rivets, which are arranged either side by side in an end area or in each case at an end area, it is advantageous to admit the end of the contact plate, which is not firmly connected to the insulating frame To protect against swiveling and also buckling out of its plane, but not also to fix it completely, so that the end can carry out compensatory movements, for example under pressure forces and temperature changes.
  • another extremely preferred embodiment provides that at the fixed connection between the contact plate and the insulating frame opposite end of the insulating frame, a bracket rising from the plane of the same is formed, which overlaps the end of the contact plate opposite the fastening point, in particular the Contact plate between its end areas is free.
  • a preferred embodiment is characterized in that the contact plate is convexly bent and prestressed towards the frame part.
  • a further development provides that in the vicinity of the fastening point on the side of the frame facing the contact plate, cams extending from the plane thereof are provided. In this way, insulating plates lying on the side of the contact plate facing away from the frame can be held against axial displacement.
  • Another training provides that the frame has cross bars. As a result, the individual PTC elements are individually enclosed and received in individual recesses in the frame part.
  • the heating device 1 has an aluminum U-profile 2, which preferably has a hardness F28 and a temperature resistance of over 400 ° Celsius.
  • a connecting tab 6 is fastened to its outer wall 4, e.g. soldered or spot welded.
  • the holding part 11 has a frame part 12 made of insulating material, such as Rayton.
  • the frame part 12 is formed from longitudinal legs 13, on the end faces of which are formed transverse legs 14, 15, and in the exemplary embodiment shown from transverse webs 16. Furthermore, after an end face 17, it has a U-shaped bracket 18 rising from its plane, which is formed in one piece with its legs 19 on the longitudinal legs 13 of the frame part 12, while a web 21 extends across the width of the frame part 12.
  • a contact plate 22 extends over the frame part 12. In the exemplary embodiment shown, the contact plate 22 is designed as a spring plate.
  • the contact plate 22 engages under the web 21 of the bracket 18 and is held at this end 27 in this way by the bracket 18.
  • the contact plate 22 is preferably bent convexly towards frame 12 and thus prestressed.
  • the frame 12 has in the region of its end 23 on the same side facing the contact plate 23, on which the bracket 18 is also seated, on its longitudinal legs 13 two cams 28 which in the longitudinal direction rest on the contact plates, on the side facing away from the frame Hold the insulating parts between the cams 28 and the bracket 18 in the longitudinal direction.
  • PTC elements 31 are inserted into the recesses 29 of the frame 12 delimited by the legs 13, 14, 15 and the webs 16.
  • Individual insulating parts 32 lie on the contact plate 22, which form an insulating layer overall.
  • the insulating parts 32 essentially have a length corresponding to the PTC elements 31. Their width corresponds to the clear distance between the legs 7 of the U-profile 2.
  • the insulating parts are preferably made of heat-conducting, electrically-insulating metal oxide, such as magnesium, barium or preferably aluminum oxide.
  • Stable cover plates 33 for example made of aluminum, continue to rest on the insulating parts 32, the width and length of which correspond to the width and length of the insulating parts 32.
  • the height of the arrangement of PTC element 31, contact plate 22 and insulating part 32 is slightly below the clear length of the legs 7 of the U-profile 2, while the height of the aforementioned parts plus the height of the cover plate 33 is slightly above the clear length of the legs 7 lies.
  • Lamellas 41 are frictionally seated on the heating unit described above for giving off heat to the surrounding air or gas.
  • the lamellae 41 have an opening 42 which is delimited, inter alia, by two opposite lugs 43 which are bent out of the main plane of the lamellae 41.
  • the distance A is at least the height of the heating unit from leg 8 of the U-profile 2, a PTC element 31, the contact plate 22, the insulating part 32 and the cover plate 33, during the lights Distance D of the end faces 46 of the tabs 43 lies below the height of the arrangement described above and thus below the distance A, as long as the lamella 41 has not yet been pushed over the heating unit defined above.
  • the slats 41 consist of aluminum sheet. For stiffening, they have stiffening beads 48 parallel to the longitudinal edges 47, which are embossed out of the main plane of the slats 41. This on the one hand increases the heat dissipation surface slightly, but it is essential that this stiffening prevents the fins from fluttering when air flows through them, which could lead to noise. Due to the specified dimensions, the slats are pushed frictionally over the heating unit and sit on it with a clamp.
  • the tabs 46 bent out of the plane of the lamellae 41 inevitably keep the lamellae at a distance from one another, that is to say they form spacers, so that it is avoided that the lamellae lie closely against one another, rather they always have a defined relative distance. While only two fins sitting on the heating unit are shown in FIG. 1, a plurality of fins 41 actually sit side by side on it, so that a heating register with a plurality of fins 41 is formed.
  • the holding part 11 is produced from the frame part 12 and the contact plate 22 by firmly connecting (riveting) the two parts together and simultaneously riveting the connecting tab 26.
  • the PTC elements 31 are then inserted into the frame part 12 from the side facing away from the contact plate 22, whereby they are held by the contact plate 22 firmly connected to the frame part 12 and prevented from falling through.
  • the section of the U-shaped profile body is placed on the side of the frame part 12 facing away from the contact plate 22, the inside of its web 8 coming into contact with the PTC elements 31 and the legs 7 the frame 12, in particular its longitudinal leg 13 and the Cover plate 22, reach over to the side.
  • the unit created so far is rotated by 180 °, so that the web 8 of the profile part 2 comes down and now carries the holding part 11 and the PTC elements lying in the frame 12, while the legs 7 protrude above the holding part 11.
  • the insulating plates 32 and the cover plates 33 are then placed on the contact plate 22 between the legs 7. Subsequently, the slats 4 are pushed onto the unit assembled to this extent, which due to their clamping sides then bring about a fixed arrangement which can no longer fall apart.

Landscapes

  • Resistance Heating (AREA)
  • Thermistors And Varistors (AREA)
EP90100250A 1989-01-26 1990-01-06 Dispositif de fixation pour éléments PTC Expired - Lifetime EP0379874B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3902205A DE3902205A1 (de) 1989-01-26 1989-01-26 Halteteil fuer ptc-elemente
DE3902205 1989-01-26

Publications (2)

Publication Number Publication Date
EP0379874A1 true EP0379874A1 (fr) 1990-08-01
EP0379874B1 EP0379874B1 (fr) 1998-07-22

Family

ID=6372792

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100250A Expired - Lifetime EP0379874B1 (fr) 1989-01-26 1990-01-06 Dispositif de fixation pour éléments PTC

Country Status (4)

Country Link
US (1) US4948953A (fr)
EP (1) EP0379874B1 (fr)
JP (1) JP2528499Y2 (fr)
DE (2) DE3902205A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2671830A1 (fr) * 1991-01-17 1992-07-24 Garrier Giraudeau Noel Rechauffeur electrique dans une enceinte pressurise avec limiteur de temperature.

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2532502Y2 (ja) * 1991-02-20 1997-04-16 株式会社村田製作所 発熱ユニット
KR930006439Y1 (ko) * 1991-05-03 1993-09-24 주식회사 금성사 마그네트론의 방열장치
US5198640A (en) * 1991-05-28 1993-03-30 Yang Chiung Hsiang Fully clad electric ptc heater with a finned protective casing
US5277612A (en) * 1992-04-21 1994-01-11 Chrysler Corporation Carrier for guiding and supporting semiconductor devices
IL121915A0 (en) * 1997-10-07 1998-03-10 Body Heat Ltd Immersible PTC heating device
DE29719639U1 (de) * 1997-11-05 1998-12-03 Fritz Eichenauer Gmbh & Co Kg, 76870 Kandel Vorrichtung zum Beheizen von Innenräumen, insbesondere von Kraftfahrzeugen
EP1988749B1 (fr) * 2001-12-06 2012-02-08 Eberspächer catem GmbH & Co. KG Dispositif de chauffage électrique
EP1467599B1 (fr) 2003-04-12 2008-11-26 Eichenauer Heizelemente GmbH & Co.KG Dispositif pour l'admission des éléments de chauffe en céramique et procédé pour la production de tels
DE20305936U1 (de) 2003-04-12 2003-07-24 Beru AG, 71636 Ludwigsburg Vorrichtung zur Aufnahme von Keramik-Heizelementen
DE102005030392A1 (de) * 2005-06-29 2007-01-04 BSH Bosch und Siemens Hausgeräte GmbH Hausgerät sowie Garguträger-Haltevorrichtung für ein Hausgerät
EP1768457B1 (fr) * 2005-09-23 2008-05-14 Catem GmbH & Co.KG Element chauffant d'un dispositif de chauffage
EP2017103B1 (fr) * 2007-07-18 2016-05-04 Eberspächer catem GmbH & Co. KG Dispositif de chauffage électrique
EP2017546B1 (fr) * 2007-07-18 2016-04-13 Eberspächer catem GmbH & Co. KG Procédé de fabrication d'un dispositif de chauffage électrique tout comme dispositif de chauffage électrique
DE502007005351D1 (de) * 2007-07-20 2010-11-25 Eberspaecher Catem Gmbh & Co K Elektrische Heizvorrichtung insbesondere für Kraftfahrzeuge
DE102007040407A1 (de) * 2007-08-27 2009-03-05 Epcos Ag PTC-Anordnung
KR101076191B1 (ko) * 2008-12-05 2011-10-21 현대자동차주식회사 피티씨 로드 조립체 및 이를 이용한 피티씨 히터
DE102010061550B4 (de) 2010-12-23 2023-06-07 Webasto Ag Elektrische Fahrzeugheizvorrichtung
DE102012109801B4 (de) * 2012-10-15 2015-02-05 Borgwarner Ludwigsburg Gmbh Elektrische Heizvorrichtung
DE102018101453A1 (de) * 2018-01-23 2019-07-25 Borgwarner Ludwigsburg Gmbh Heizvorrichtung und Verfahren zum Herstellung eines Heizstabes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2845965A1 (de) * 1978-10-21 1980-04-24 Eichenauer Fa Fritz Elektrisches widerstandsheizelement
EP0019376A1 (fr) * 1979-04-28 1980-11-26 Murata Manufacturing Co., Ltd. Appareil de chauffage employant un thermistor

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE23644C (de) * H. POD-LIPSKY, V. MACHOWSKY in Prag und A. KASC in Listol Rübenschneidevorrichtung
US2606986A (en) * 1951-07-14 1952-08-12 Barber Colman Co Resistance unit
JPS5224705Y2 (fr) * 1971-05-12 1977-06-04
US4242567A (en) * 1978-06-05 1980-12-30 General Electric Company Electrically heated hair straightener and PTC heater assembly therefor
DE2845894A1 (de) * 1978-10-21 1980-04-30 Eichenauer Fa Fritz Elektrische widerstandsheizeinrichtung
DE2932026A1 (de) * 1979-08-07 1981-02-26 Bosch Siemens Hausgeraete Elektrische heizeinrichtung mit einem heizelement aus kaltleitermaterial
DE2948591A1 (de) * 1979-12-03 1981-06-11 Fa. Fritz Eichenauer, 6744 Kandel Durchlauferhitzer
DE3042420A1 (de) * 1980-11-11 1982-06-24 Fritz Eichenauer GmbH & Co KG, 6744 Kandel Elektrischer heizkoerper mit ein oder mehreren flachen, quaderfoermigen heizelementen
JPS60112281A (ja) * 1983-11-18 1985-06-18 松下電工株式会社 ヒ−タ
JPS6191057U (fr) * 1984-11-16 1986-06-13
US4728779A (en) * 1985-09-27 1988-03-01 Tdk Corporation PTC heating device
JPH0734390B2 (ja) * 1987-09-11 1995-04-12 株式会社村田製作所 正特性サーミスタ装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2845965A1 (de) * 1978-10-21 1980-04-24 Eichenauer Fa Fritz Elektrisches widerstandsheizelement
EP0019376A1 (fr) * 1979-04-28 1980-11-26 Murata Manufacturing Co., Ltd. Appareil de chauffage employant un thermistor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2671830A1 (fr) * 1991-01-17 1992-07-24 Garrier Giraudeau Noel Rechauffeur electrique dans une enceinte pressurise avec limiteur de temperature.

Also Published As

Publication number Publication date
US4948953A (en) 1990-08-14
JPH0298601U (fr) 1990-08-06
DE59010837D1 (de) 1998-08-27
JP2528499Y2 (ja) 1997-03-12
EP0379874B1 (fr) 1998-07-22
DE3902205A1 (de) 1990-08-02

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