EP1816901A2 - Radiateur doté d'une masse d'isolation dans la zone d'extrémité de raccordement - Google Patents

Radiateur doté d'une masse d'isolation dans la zone d'extrémité de raccordement Download PDF

Info

Publication number: EP1816901A2
Authority: EP; European Patent Office
Prior art keywords: jacket tube; heating device; closure; outside; bead
Prior art date: 2006-02-06
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

EP07002319A

Other languages

German (de)

English (en)

Other versions

EP1816901A3 (fr

EP1816901B1 (fr

Inventor

Andreas Pleschinger

René Hendler

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.)

Bleckmann GmbH and Co KG

Original Assignee

Bleckmann 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.)

2006-02-06

Filing date

2007-02-02

Publication date

2007-08-08

2007-02-02 Application filed by Bleckmann GmbH and Co KG filed Critical Bleckmann GmbH and Co KG

2007-02-02 Priority to PL07002319T priority Critical patent/PL1816901T3/pl

2007-08-08 Publication of EP1816901A2 publication Critical patent/EP1816901A2/fr

2009-01-14 Publication of EP1816901A3 publication Critical patent/EP1816901A3/fr

2012-01-11 Application granted granted Critical

2012-01-11 Publication of EP1816901B1 publication Critical patent/EP1816901B1/fr

Status Not-in-force legal-status Critical Current

2027-02-02 Anticipated expiration legal-status Critical

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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
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
- 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
- H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material

Definitions

the present invention relates to a heating device for heating a fluid, in particular in household appliances, which according to the preamble of claim 1 includes: a jacket tube, at least one arranged in the interior of the jacket tube electrical resistance heating wire, embedded in an electrically insulating, thermally conductive insulating in the jacket tube is at least one terminal assembly, which is arranged in the interior of the jacket tube and which is guided to connect the electrical resistance heating wire with a au- ⁇ er distress of the jacket tube located electrical energy source from the jacket tube to the outside, and at least one sealing bead, which the opening of the jacket tube closes.
the region of the terminal assembly A in particular the region of the overload protection Ü of the area of the electrical resistance heating wire W by a first disc Sl 1 is made of insulating resin.
an insulating compound IM is filled in the area of the electrical resistance heating wire W.
the largest part of the connection assembly A is enclosed by a plastic sleeve K, which electrically isolates the connection assembly A from the jacket tube M.
a copper sleeve KH is pushed onto the facing away from the interior of the jacket tube M front end of the connecting bolt A, which is also pushed on its other side to the thermal overload fuse Ü.
two further Materiaiusionn Sl 2 , Sl 3 of insulating resin and an insulating bead IP close.
This prior art heater has a number of disadvantages: First of all, a large number of individual parts is necessary in order to be able to arrange the connection assembly functionally reliable in the interior of the jacket tube. By this variety of parts, but also by the consequent large number of necessary handling operations for mounting this extensive number of components, the cost of the prior art heater increase significantly. In addition, there are large tolerance additions. Furthermore, the jacket tube after filling the insulating material for compression of these reduction of diameter, for example, 10 mm, to a reduced diameter, for example, 8.5 mm, must be reduced. This can be done both before the assembly of the terminal assembly and thereafter, in the latter case, the Reduzierwalzen must be lifted in time from the jacket tube in order to avoid damage to the terminal assembly, in particular the thermal overload protection.
the reduction process makes it necessary for the jacket tube of the heater to undergo a recrystallization anneal, otherwise there is a risk that in a bending process of the jacket tube, for example, to give it a U-shaped or W-shaped configuration, it would rupture. Furthermore, the heaters must be isolated, otherwise Moisture is absorbed by the filling compound and thus a short circuit can occur from the electrical resistance heating wire to the jacket tube.
the thermal overload protection can be connected directly to the terminal bolt, for example, by the fact that the wire of the overload protection is connected directly to the terminal bolt, for example by Verkerben. Since the number of parts has decreased significantly compared to the prior art heaters, the number of handling operations or assembly steps in the assembly of the heater according to the invention is significantly reduced. Overall, therefore, the solution according to the invention saves considerable costs.
the electrical resistance heating wire is inserted into the mandrel together with the terminal bolt or bolts.
the filling of the jacket tube with the insulating material is introduced into the casing tube, after which the copper sleeve is pushed together with the thermal overload protection on the connecting bolt.
the two other insulating discs made of synthetic resin and the insulating bead are inserted into the casing tube end and the casing tube end plastically deformed and sealed it.
the closure bead is provided on its outside with at least one filling slot extending over its entire axial length, it is possible to use the entire unit of electrical resistance heating wire and terminal assembly, which in turn consists of the one hand with the electrical resistance heating wire and the other thermal overload protection connected connecting pin, the thermal overload protection itself and the sealing bead is to introduce before filling the insulating in the jacket tube.
the at least one filling slot then the insulating can be filled in thedian Glate jacket tube.
the closure bead has on its outside a total of four filling slots, preferably distributed in the circumferential direction in a uniform division, the filling process can be carried out more quickly.
a sealing bead is used, which has no Artschlitz, so this jacket tube both tight against leakage of the insulating material from the jacket tube and tight towards an access of any other medium or fluid into the interior of the jacket tube closes.
a closure bead with at least one fill slot is then provided at the other end face of the jacket tube.
the at least one filling slot must be closed.
this can be achieved by providing at least one deformable closure nose on the closure bead on its side facing away from the casing tube interior.
This deformable closure nose can be deformed after the filling process so that they mediumsdicht the filling slot closes. This can be done, for example, that the at least one closure lug of the closure bead consists of a thermally deformable plastic, so that this closing process can be carried out with a hot stamping tool. If the closure bead has a plurality of filling slots, then such a closure nose is provided for each of these filling slots.
a further alternative for closing the filling slot (s) of the closure bead is to attach to the closure bead towards the outside of the jacket tube, i. in the direction of the jacket tube opening a sealing bead connects, which closes the jacket tube medium-tight.
the heaters In the heaters, as they are known from the prior art, takes place after filling the insulating and before mounting the overload protection rolling a process for compacting the insulating.
this rolling process reduces the diameter of the jacket tube, for example, from 10 mm to 8.5 mm.
the latter diameter is a diameter which is often found in practice in such heaters, since this Au- ⁇ diameter is provided to the inner diameters of through holes in a for holding the heater to a fluid container to be heated.
the jacket tube already has a diameter which can be used for corresponding flange assemblies and the like, i.e. that it is no longer necessary to reduce the diameter of the jacket tube.
the jacket tube is merely subjected to a pressing process. As a result, it is then no longer necessary to carry out a subsequent recrystallization annealing.
insulating material previously used in practice, namely magnesium oxide
siliconized magnesium oxide whereby isolation by synthetic resin is no longer necessary.
insulating a standard mass such as To use magnesium oxide and seal the heater to the outside with a thermoelastic filler bead, which closes the jacket tube medium-tight.
the heater may be additionally sealed to the outside with a covering resin.
the heating device according to the invention shown in FIGS. 2A, 2B in a partial longitudinal section has, as essential components or assemblies, a jacket tube 10, an electrical resistance heating wire 20, a connection assembly 30 and an insulating compound 40. These individual assemblies will be explained below.
the jacket tube 10 consists of a sufficient or good heat conducting material, such as stainless steel or aluminum, and has an at least approximately circular cross-section.
the two front ends 10a of the jacket tube 10 are open to the outside, it being noted that in Figs. 2A, 2B, only one of the two front ends 10a is shown.
the jacket tube 10 can be made into any external shape, e.g. For example, be designed as a straight tube or be bent in the shape of the letter "U” or "W".
the jacket tube 10 has from the beginning, i. already at the beginning of assembly of the arranged in the casing 10 components or assemblies on the outer diameter, which it has in the installed state, for example in a fluid container in a dishwasher or a laundry washing machine.
the electrical resistance heating wire 20 which is arranged inside the casing tube 10 at least approximately coaxially to its central longitudinal line and which is made of an electrical resistance material heated at current flow, is wound into a heating coil , At its two free ends, the electrical resistance heating wire 20 is connected to the terminal assembly 30 located there. This connection can be made for example by a weld.
connection module 30 initially has a likewise at least approximately coaxial with the central longitudinal line of the jacket tube 10 arranged connecting bolt 32, which may be made of a good heat and electrically conductive material, such as copper.
connecting bolt 32 which may be made of a good heat and electrically conductive material, such as copper.
this has at its facing the electrical resistance heating wire 20 end a tapered portion 32 a, so that wound to the helix electrical resistance heating wire 20 on the connecting bolt 32nd easily postponed and, as already mentioned, by means of, for example, a welding point can be specified there.
the conical portion 32a is followed by a circular cylindrical portion 32b of the connecting bolt 32.
the latter is connected to a likewise at least approximately coaxial with the central longitudinal line of the jacket tube 10 arranged thermal overload protection 34 in such a way that a lead wire 34a of the thermal overload protection 34 with the right frontal End of the connecting bolt 32 is connected by a crimping or notching process.
the thermal overload protection 34 may be formed for example by a fuse that interrupts the electrical connection between the electrical resistance heating wire 20 and a power source, not shown, when a predetermined temperature is exceeded.
a connecting piece of wire 36 is connected to the thermal overload protection 34, for example by a crimping or notching process.
This connection piece of wire 36 is led out of the jacket tube 10 to the outside and serves to connect the heating device according to the invention with the already mentioned, not shown electrical energy source.
a closure bead 38 is provided, which is shown in detail in Figs. 3 and 4 in more detail.
the closure bead 38 is made of a thermoformable plastic.
the closure bead 38 has four fill slots 38a distributed in the circumferential direction of the closure bead 38 in a uniform pitch. These filling slots 38a extend over the entire axial length of the sealing bead 38. Webs 38b are provided between the individual filling slots 38a, whose outer diameter corresponds at least approximately to the inner diameter of the jacket tube 10.
lugs 38c are provided on the webs, which close the filling slots 38a by a thermal deformation process after a filling with an insulating material 40, as will be explained in more detail below.
the closure bead 38 projects beyond the right-hand end 10 a of the jacket tube 10. In its axial position it is fixed by means of two notches on the connecting piece of wire 36.
the area of the second terminal end of the heating device according to the invention on the side not shown as well may be constructed as explained above.
another closure bead is used, for example one which has no filling slots and whose outside diameter substantially corresponds to the inside diameter of the jacket tube 10. This closure bead can then be fixed, for example, by an adhesive process in the local end of the jacket tube 10.
siliconized insulating compound 40 serves to electrically insulate the electrical resistance heating wire 20 and the other electrical components of the terminal assembly 30, i. of the connecting bolt 32, the thermal overload protection 34 and the connecting wire piece 36 with respect to the inner wall of the jacket tube 10.
the siliconized insulating compound has the heat generated by the electrical resistance heating wire 20 to conduct to the jacket tube 10.
the locking lugs 38b of the closure bead 38 by a thermal deformation process in the Deformed manner that the filling slots 38a are sealed medium-tight.

Landscapes

Resistance Heating (AREA)
Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Pipe Accessories (AREA)

EP07002319A 2006-02-06 2007-02-02 Radiateur doté d'une masse d'isolation dans la zone d'extrémité de raccordement Not-in-force EP1816901B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
PL07002319T PL1816901T3 (pl)	2006-02-06	2007-02-02	Grzejnik rurowy z masą izolacyjną w przyłączeniowym obszarze końcowym

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102006005322A DE102006005322B4 (de)	2006-02-06	2006-02-06	Rohrheizkörper mit Isoliermasse im Anschlussendenbereich

Publications (3)

Publication Number	Publication Date
EP1816901A2 true EP1816901A2 (fr)	2007-08-08
EP1816901A3 EP1816901A3 (fr)	2009-01-14
EP1816901B1 EP1816901B1 (fr)	2012-01-11

Family

ID=38006226

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP07002319A Not-in-force EP1816901B1 (fr)	2006-02-06	2007-02-02	Radiateur doté d'une masse d'isolation dans la zone d'extrémité de raccordement

Country Status (6)

Country	Link
US (1)	US7496284B2 (fr)
EP (1)	EP1816901B1 (fr)
AT (1)	ATE541433T1 (fr)
DE (1)	DE102006005322B4 (fr)
ES (1)	ES2380809T3 (fr)
PL (1)	PL1816901T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ITRM20110271A1 (it) *	2011-05-31	2012-12-01	I R C A S P A Ind Resistenz E Corazzate E	Resistenza corazzata a due puntali di elettrodomestico

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7949238B2 (en) *	2007-01-19	2011-05-24	Emerson Electric Co.	Heating element for appliance
DE202008016439U1 (de)	2008-12-11	2009-03-12	Türk & Hillinger GmbH	Heizpatrone
DE102009005481B3 (de)	2009-01-21	2010-04-08	Bleckmann Gmbh & Co. Kg	Verbindungselement für Heizwendel für Rohrheizkörper sowie Herstellungsverfahren hierfür
ITRM20100291A1 (it) *	2010-05-31	2011-12-01	I R C A S P A Ind Resistenz E Corazzate E	Resistenza corazzata con elemento di sigillatura di estremita'
US9371841B2 (en)	2012-03-05	2016-06-21	Electrolux Home Products, Inc.	Safety arrangement for an integrated heater, pump, and motor for an appliance
EP3209957B1 (fr) *	2014-10-21	2021-04-07	LG Electronics Inc.	Dispositif de dégivrage et réfrigérateur le comprenant
PL3109564T3 (pl) *	2015-06-24	2020-02-28	Bleckmann Gmbh & Co. Kg	Urządzenie końcowe do rurowego urządzenia grzewczego ze zintegrowanym bezpiecznikiem
ITUB20152625A1 (it) *	2015-07-30	2017-01-30	Irca Spa	Resistenza corazzata e relativo processo di produzione
DE102019129735B4 (de) *	2019-11-05	2024-12-05	Türk & Hillinger GmbH	Verfahren zur Herstellung einer elektrischen Heizvorrichtung
DE102020105782B4 (de) *	2020-03-04	2025-12-04	Türk & Hillinger GmbH	Verfahren zur Herstellung einer elektrischen Heizvorrichtung und elektrische Heizvorrichtung
CN219612061U (zh) *	2023-04-10	2023-08-29	东莞市致文电子科技有限公司	一种加热棒

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US3657519A (en) *	1970-05-25	1972-04-18	James F Pease	Electrical heating element and fitting assembly
DE2101062A1 (de) *	1971-01-11	1972-07-27	Tuerk & Hillinger Kg	Elektrischer Rohrheizkörper mit Temperaturbegrenzer
US3732398A (en) *	1972-04-17	1973-05-08	J Pease	Electrical heating element and fitting assembly
US3934333A (en) *	1973-07-25	1976-01-27	Churchill John W	Method of constructing bilateral heater unit
US3839623A (en) *	1973-08-30	1974-10-01	Watlow Electric Mfg Co	Electric heater with add-on leads
US3970817A (en) *	1975-05-14	1976-07-20	Robert Lee Boyd	Hazardous leakage current preventing for refractory-encased heater elements
US4186369A (en) *	1977-11-02	1980-01-29	Wylain, Inc.	Connector for terminating the end of a sheathed heating element
DE2825980A1 (de) *	1978-06-14	1980-01-03	Eichenauer Fa Fritz	Elektrischer rohrheizkoerper und verfahren zu seiner herstellung
US4287502A (en) *	1979-06-19	1981-09-01	Amark Industries, Inc.	Cartridge heater structure
US4273993A (en) *	1980-05-12	1981-06-16	Emerson Electric Co.	Terminations for electric heating elements
US4346287A (en) *	1980-05-16	1982-08-24	Watlow Electric Manufacturing Company	Electric heater and assembly
DE3204875C2 (de) *	1982-02-12	1985-02-07	Elpag Ag Chur, Chur	Rohrheizkörper mit einer Überlastungssicherung
US5486682A (en) *	1992-10-21	1996-01-23	Acra Electric Corporation	Heater assembly for swaged cartridge heater and method of manufacture
FR2737381B1 (fr) *	1995-07-26	1997-08-29	Seb Sa	Element chauffant et procede de bouchage dudit element chauffant
CA2183722C (fr) *	1996-08-20	2007-01-09	Egan Villringer	Methode de fabrication d'un element chauffant
DE10062539B4 (de) *	2000-12-15	2010-06-24	Bleckmann Gmbh & Co. Kg	Anschlußbaugruppe für eine elektrische Heizvorrichtung sowie Verfahren zur Montage der Heizvorrichtung
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2006
- 2006-02-06 DE DE102006005322A patent/DE102006005322B4/de not_active Expired - Fee Related
2007
- 2007-02-02 EP EP07002319A patent/EP1816901B1/fr not_active Not-in-force
- 2007-02-02 AT AT07002319T patent/ATE541433T1/de active
- 2007-02-02 PL PL07002319T patent/PL1816901T3/pl unknown
- 2007-02-02 ES ES07002319T patent/ES2380809T3/es active Active
- 2007-02-06 US US11/671,950 patent/US7496284B2/en not_active Expired - Fee Related

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ITRM20110271A1 (it) *	2011-05-31	2012-12-01	I R C A S P A Ind Resistenz E Corazzate E	Resistenza corazzata a due puntali di elettrodomestico
WO2012164510A1 (fr) *	2011-05-31	2012-12-06	I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini	Résistance armée à deux extrémités pour appareils domestiques

Also Published As

Publication number	Publication date
US20070194007A1 (en)	2007-08-23
ATE541433T1 (de)	2012-01-15
US7496284B2 (en)	2009-02-24
DE102006005322B4 (de)	2010-04-29
ES2380809T3 (es)	2012-05-18
DE102006005322A1 (de)	2007-08-16
EP1816901A3 (fr)	2009-01-14
EP1816901B1 (fr)	2012-01-11
PL1816901T3 (pl)	2012-06-29

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