EP1297722B1 - Heizkabel mit mehrschichtaufbau - Google Patents

Heizkabel mit mehrschichtaufbau Download PDF

Info

Publication number
EP1297722B1
EP1297722B1 EP01273768A EP01273768A EP1297722B1 EP 1297722 B1 EP1297722 B1 EP 1297722B1 EP 01273768 A EP01273768 A EP 01273768A EP 01273768 A EP01273768 A EP 01273768A EP 1297722 B1 EP1297722 B1 EP 1297722B1
Authority
EP
European Patent Office
Prior art keywords
layer
heating cable
air
heating
reinforcing layer
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.)
Revoked
Application number
EP01273768A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1297722A1 (de
Inventor
Renato Parun
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.)
Thermon Europe BV
Original Assignee
Thermon Europe BV
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=7674370&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1297722(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thermon Europe BV filed Critical Thermon Europe BV
Publication of EP1297722A1 publication Critical patent/EP1297722A1/de
Application granted granted Critical
Publication of EP1297722B1 publication Critical patent/EP1297722B1/de
Anticipated expiration legal-status Critical
Revoked 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables

Definitions

  • the present invention relates to a heating cable with a multi-layer structure.
  • German Offenlegungsschrift DE 34 14 284 A1 discloses an electrical heating element known for piping. Here is a coaxial heat conductor with a External insulation of Teflon-PFA described.
  • the present invention has for its object to a heating cable in such a way improve it especially against external mechanical stresses (Buckling) is particularly resistant.
  • a heating cable is provided with a multi-layer structure, at least a central electrically conductive heating conductor and two electrically insulating and in having substantial air-impermeable layers, which are arranged so that between them can form an air cushion.
  • the spacer may be a layer of fibrous, braided, cellular or porous Be structure.
  • the spacer can be designed in the sense of a mechanical reinforcement function be.
  • the spacer may be a reinforcing layer of a metallic wire mesh be, which may consist of nickel-plated copper wires.
  • At least one of the substantially air-impermeable layers may be made Perfluoroalkoxy copolymer (PFA) exist.
  • PFA Perfluoroalkoxy copolymer
  • At least one of the substantially air-impermeable layers and the Spacer may be a layer of non-metallic fiber material be.
  • the layer of a non-metallic fiber material may consist of a Consist of glass fiber ceramic tape.
  • a heating cable according to the invention is denoted by 6.
  • Such Heating cable can be, for example, as Serienitztechnisch for process temperature constant maintenance use. Due to the structure explained in more detail below It can also be used in potentially explosive atmospheres.
  • Such a heating cable 6 with series resistance has a constant, through the Voltage, the resistance and the length of the cable defined active power. For example, it can maintain a process temperature of up to 280 ° C become. A typical supply voltage is 750 V. This can be Achieve output power in the range of 25 W / min.
  • an electrical heating conductor. 1 intended. This is of a first insulating layer 2, for example of PFA or from a comparable plastic material, surrounded. At this first electric Insulating layer 2 adjoins a glass fiber ceramic tape layer 3, which in Interaction with a radial of it outside (as shown) or inside (not shown) arranged reinforcing layer 4 a protection against mechanical Damage offers.
  • the glass fiber ceramic tape layer 3 is similar to one with Minerals offset glass fiber formed.
  • the sandwich structure of the glass fiber ceramic tape layer 3 / reinforcing layer 4 it further increases the mechanical protection properties.
  • the glass fiber ceramic tape layer 3 also prevents this from occurring during a thermal Extension of the underlying PFA layer 2, the reinforcing layer 4 in this cuts. It should also be remembered that the PFA material at higher Temperatures softened.
  • the glass fiber ceramic tape layer 3 thus has simultaneously mechanical protection and electrical insulation.
  • the reinforcing layer 4 is outwardly again by another electrically insulating layer 5 protected, for example, from perfluoroalkoxy copolymer material (PFA) can exist.
  • PFA perfluoroalkoxy copolymer material
  • the two electrically insulating layers 2, 5 are both substantially and im Ideally, completely air-impermeable, so that between them at a appropriate dimensioning of their cross sections a mechanically protective air cushion formed.
  • the glass ceramic tape layer 3 and the reinforcing layer 4 are in essential air permeable and therefore have the function of a spacer, the a direct contact of the two layers 2, 5 prevented as possible. Therefore, the Reinforcing layer 4 also formed so that they are the underlying layers -
  • grounding straps with comparable structure - completely surrounds, both in terms of the longitudinal extent as well as the Circumferential direction of the heating cable. The complete surrounding in all dimensions guarantees that the spacer effect and thus also the protective air cushion always available.
  • This air cushioning is on the one hand by the braided structure of the Reinforcing layer 4 and on the other hand by an appropriate design of the Inner diameter of the reinforcing layer 4 with respect to the outer diameter of the Fiberglass ceramic tape layer 3 reached.
  • the diameter of the reinforcing layer 4 For example, it can be deliberately oversized to ensure sufficient strength to ensure thereby adjusting air cushion.
  • the reinforcing layer 4 has some play with respect to the underlying layers, but can through the layer 5 Be closely surrounded outside.
  • the braided structure of the reinforcing layer 4 thus also achieves that a certain volume of air between the glass fiber ceramic tape layer 3 and the outer protective layer 5 can form.
  • wire mesh-based reinforcing layer instead of the wire mesh-based reinforcing layer, too other spacers are used, for example, a porous, fibrous, braided or cellular (open or closed) structure.
  • the mechanical protection effect is summarized on the one hand by the Air cushion and on the other hand achieved by the sandwich structure.
  • the advantage in the sense a synergetic effect is that while both protective measures may be provided independently of each other, but complement each other so that they provide a protective effect with respect to different mechanical influences from the outside unfold.
  • the heating cable according to the invention has when used as a heating cable the Advantages that it is highly flexible and chemically resistant, a constant heat output (Active power) allows large heating circuit lengths are possible and the Supply voltage can be up to 750 V.

Landscapes

  • Resistance Heating (AREA)
  • Insulated Conductors (AREA)
EP01273768A 2001-02-16 2001-10-16 Heizkabel mit mehrschichtaufbau Revoked EP1297722B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10107429 2001-02-16
DE10107429A DE10107429B4 (de) 2001-02-16 2001-02-16 Heizkabel mit Mehrschichtaufbau
PCT/EP2001/011956 WO2002067630A1 (de) 2001-02-16 2001-10-16 Heizkabel mit mehrschichtaufbau

Publications (2)

Publication Number Publication Date
EP1297722A1 EP1297722A1 (de) 2003-04-02
EP1297722B1 true EP1297722B1 (de) 2005-08-31

Family

ID=7674370

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01273768A Revoked EP1297722B1 (de) 2001-02-16 2001-10-16 Heizkabel mit mehrschichtaufbau

Country Status (5)

Country Link
EP (1) EP1297722B1 (ru)
AT (1) ATE303709T1 (ru)
DE (2) DE10107429B4 (ru)
EA (1) EA004666B1 (ru)
WO (1) WO2002067630A1 (ru)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11871486B2 (en) 2017-02-01 2024-01-09 Nvent Services Gmbh Low smoke, zero halogen self-regulating heating cable

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10325517A1 (de) * 2003-06-05 2004-12-23 Hew-Kabel/Cdt Gmbh & Co. Kg Elektrische Heizleitung oder Heizband
DE202008016069U1 (de) * 2008-12-04 2009-12-03 Trace Tec Begleitheizungstechnik Gmbh Vorrichtung zur Beheizung von Oberflächen
FR3002076B1 (fr) * 2013-02-12 2022-11-11 Nexans Cable electrique resistant aux decharges partielles
ITNA20130038A1 (it) * 2013-07-05 2015-01-06 Gianni Lucci Apparecchio per il contenimento e il riscaldamento di acque ad uso domestico con funzionamento a pressione grazie all'energia elettrica prodotta da bobine elettromagnetiche
KR101516159B1 (ko) * 2014-05-29 2015-05-04 이민수 세라믹과 테프론이 코팅된 히팅케이블
CN108521689A (zh) * 2018-05-16 2018-09-11 无锡市环球电器装备有限公司 智能型超长距离加热电缆

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1540897A1 (de) * 1965-10-25 1970-01-02 Eugen Kloepper Waermetechnik G Heizkabel mit Schutzleiter
DE2850722A1 (de) * 1978-11-23 1980-05-29 Pampus Kg Elektrisches heizelement mit schutzleiter fuer aggressive baeder
DE2901446C2 (de) * 1979-01-16 1981-04-09 Beck, von der, Heinz, 8011 Baldham Heizleitung mit spezifischer Heizleistung
DE3243061A1 (de) * 1982-11-22 1984-05-24 HEW-Kabel Heinz Eilentropp KG, 5272 Wipperfürth Flexibles elektrisches ablaengbares heizelement
DE3414284A1 (de) * 1984-04-14 1985-10-31 Heraeus-Wittmann Gmbh, 6450 Hanau Elektrisches heizelement fuer rohrleitungen, insbesondere fuer lange rohrleitungen
DE8435742U1 (de) * 1984-12-06 1985-04-04 Schmidt, Hans, 5165 Hürtgenwald Elektrische heizleitung
US5111032A (en) * 1989-03-13 1992-05-05 Raychem Corporation Method of making an electrical device comprising a conductive polymer
CA2174615A1 (en) * 1996-04-19 1997-10-20 Glenwood Franklin Heizer Variable power limiting heat tracing cable
GB9618289D0 (en) * 1996-09-02 1996-10-16 Warmup Plc Heating system
DE20006222U1 (de) * 2000-04-06 2000-07-27 Hemstedt, Dieter, 74336 Brackenheim Elektrische Heizleitung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11871486B2 (en) 2017-02-01 2024-01-09 Nvent Services Gmbh Low smoke, zero halogen self-regulating heating cable
US11956865B2 (en) 2017-02-01 2024-04-09 Nvent Services Gmbh Low smoke, zero halogen self-regulating heating cable

Also Published As

Publication number Publication date
DE10107429A1 (de) 2002-09-12
EA200300148A1 (ru) 2003-06-26
EA004666B1 (ru) 2004-06-24
ATE303709T1 (de) 2005-09-15
WO2002067630A1 (de) 2002-08-29
DE50107297D1 (de) 2005-10-06
DE10107429B4 (de) 2005-09-29
EP1297722A1 (de) 2003-04-02

Similar Documents

Publication Publication Date Title
EP2184524A2 (de) Flexibler, elektrischer beheizbarer Schlauch
DE4034197C2 (ru)
DE69923053T2 (de) Strukturell verstärktes Energie- und/oder Telekomkabel
WO2008142385A1 (en) Fire-resistant cable
EP2113927B1 (de) Halbleitendes Wickelband aus Polytetrafluorethylen
DE60125682T2 (de) Heizkabel
DE10325517A1 (de) Elektrische Heizleitung oder Heizband
DE4302695A1 (de) Elektrische Heizung
EP1297722B1 (de) Heizkabel mit mehrschichtaufbau
KR20190024713A (ko) 열선 케이블 및 이를 포함하는 발열시트
EP0899750A2 (de) Koaxiales Hochfrequenz-Kabel
EP1236209B2 (en) Electrical cable having a hardgrade-epr insulation
DE202021103508U1 (de) Ladeleitung mit optimierter Handhabbarkeit
DE2901446C2 (de) Heizleitung mit spezifischer Heizleistung
WO2007054325A1 (de) Mehrleiterkabel für die übertragung von rechteckig verlaufenden wechselströmen
EP1783786B1 (de) Kabelsystem mit magnetischer Schirmungshülle
DE69606519T2 (de) Heizkabel mit variablem Leistungsbegrenzer
DE19839651B4 (de) Chemisch weitgehend resistente, schlauchförmige Ummantelung für einen Heizkörper einer elektrischen Heizvorrichtung
US4959266A (en) Urethane-resin coated electrical wire having an intermediate layer
DE20104808U1 (de) Heizkabel mit Mehrschichtaufbau
DE202006016804U1 (de) Kabelsystem mit magnetischer Schirmungshülle
DE3233928A1 (de) Flexibles elektrisches heiz- oder temperaturmesselement
DE3727732A1 (de) Einrichtung zur elektrischen beheizung von rohren, behaeltern und dergleichen
EP2026629B1 (en) Heating cable
EP1637908B1 (de) Laserlichtkabel mit elektrisch leitender Drahtumhüllung

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

17P Request for examination filed

Effective date: 20021217

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17Q First examination report despatched

Effective date: 20030520

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;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: 20050831

Ref country code: GB

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: 20050831

Ref country code: IE

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: 20050831

Ref country code: FI

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: 20050831

Ref country code: TR

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: 20050831

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50107297

Country of ref document: DE

Date of ref document: 20051006

Kind code of ref document: P

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

Ref country code: AT

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

Effective date: 20051016

Ref country code: CY

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: 20051016

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

Ref country code: BE

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

Effective date: 20051031

Ref country code: LU

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

Effective date: 20051031

Ref country code: MC

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

Effective date: 20051031

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

Ref country code: GR

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: 20051130

Ref country code: SE

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: 20051130

Ref country code: DK

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: 20051130

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: 20051212

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

Ref country code: PT

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: 20060223

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20050831

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: KLOEPPER-THERM GMBH & CO. KG

Effective date: 20060524

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

NLR1 Nl: opposition has been filed with the epo

Opponent name: KLOEPPER-THERM GMBH & CO. KG

R26 Opposition filed (corrected)

Opponent name: KLOEPPER-THERM GMBH & CO. KG

Effective date: 20060524

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: A. BRAUN, BRAUN, HERITIER, ESCHMANN AG PATENTANWAE

EN Fr: translation not filed
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061027

NLR1 Nl: opposition has been filed with the epo

Opponent name: KLOEPPER-THERM GMBH & CO. KG

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

BERE Be: lapsed

Owner name: THERMON EUROPE B.V.

Effective date: 20051031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: THERMON EUROPE B.V.

Free format text: THERMON EUROPE B.V.#BOEZEMWEG 25#2641 KG PIJNACKER (NL) -TRANSFER TO- THERMON EUROPE B.V.#BOEZEMWEG 25#2641 KG PIJNACKER (NL)

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051031

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050831

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

Ref country code: DE

Payment date: 20090429

Year of fee payment: 8

Ref country code: NL

Payment date: 20090427

Year of fee payment: 8

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

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

Ref country code: CH

Payment date: 20090427

Year of fee payment: 8

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

27W Patent revoked

Effective date: 20090623

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 20050831

Ref country code: CH

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 20050831

NLR2 Nl: decision of opposition

Effective date: 20090623