WO2003075413A1 - Appareil de chauffage electrique a commande thermostatique - Google Patents

Appareil de chauffage electrique a commande thermostatique Download PDF

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Publication number
WO2003075413A1
WO2003075413A1 PCT/EP2003/001050 EP0301050W WO03075413A1 WO 2003075413 A1 WO2003075413 A1 WO 2003075413A1 EP 0301050 W EP0301050 W EP 0301050W WO 03075413 A1 WO03075413 A1 WO 03075413A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric heating
electric
heating element
thermostatically controlled
heating apparatus
Prior art date
Application number
PCT/EP2003/001050
Other languages
English (en)
Inventor
Corrado Marchetti
Andrea Taurian
Ivan Poser
Original Assignee
Irca S.P.A.
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 Irca S.P.A. filed Critical Irca S.P.A.
Priority to EP03702593A priority Critical patent/EP1481448B1/fr
Priority to CA002478148A priority patent/CA2478148A1/fr
Priority to DE60302223T priority patent/DE60302223T2/de
Priority to AT03702593T priority patent/ATE309630T1/de
Publication of WO2003075413A1 publication Critical patent/WO2003075413A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only

Definitions

  • the present invention relates to a thermostatically controlled electric heating apparatus, such as for instance of the kind used in conjunction with radiators or similar heaters.
  • These electric heating apparatuses are generally known to usually comprise a cartridge -type electric heating element that is provided of an outer threading in order to be capable of being installed by being screwed on in a support body, which may for instance be constituted by a radiator.
  • this temperature control device has a substantially box-like structure formed by two appropriately shaped half-shells, which are then coupled together, i.e. against each other so as to clamp, upon said heating element having been screwed on in its support body, the head- side end portion of the heating element itself therebetween.
  • the assembly itself must be carried out by appropriately skilled personnel with the use of appropriate tools, so that it must be completed at the factory, which practically means that the final user must necessarily be supplied with a duly pre-assembled unit comprising the heating element, the temperature control device and the support body;
  • the temperature control devices are subject to easily occurring breakdowns, owing to their being provided with a not so much robust plastic structure;
  • thermostatically controlled electric heating apparatuses themselves imply performing a number of undesirably complicated, awkward and expensive operations, which must anyway be carried out by adequately skilled personnel.
  • traditional solutions turn out as being fully unsatisfactory.
  • thermostatically controlled electric heating apparatus which is capable of being quickly and conveniently assembled even by unskilled personnel and, therefore, is capable of also being assembled directly in the field, without having to necessarily be pre-assembled at the factory, i.e. the original manufacturing site.
  • Another purpose of the present invention is to provide a thermostatically controlled electric heating apparatus of the above cited kind, which is capable of being stored, handled, transported and possibly even repaired in a safe, reliable and convenient manner, while minimizing the risks for component parts to suffer accidental breakdowns.
  • FIG. 1 is a partially cross-sectional and partially see-through exploded side view of a preferred embodiment of the present invention.
  • FIG. 2 is a cross-sectional, enlarged- scale view of a pair of component parts illustrated in Figure 1 , in an assembled state thereof.
  • the thermostatically controlled electric heating apparatus mainly comprises an electric heating element 1 of the cartridge type, which extends along a main axis 2.
  • said heating element 1 is provided, in a per se known manner, with electric terminals 4 protruding therefrom in a substantially axial direction, i.e. parallel to each other and adjacent to said main axis 2.
  • Said electric terminals 4 are preferably of the male type, comprising respective metal tabs featuring an adequate mechanical strength , and are preferably surrounded by a cylindrical protection portion 5 protruding axially.
  • This protective portion is provided with one or more axial projections 15 diametrically opposing each other, whose role will be explained in greater detail further on.
  • the electric heating element 1 is provided with a threaded portion 6, by means of which it is capable of being assembled its intended site of use by being screwed on in a support body 7, which may for instance be formed by a radiator.
  • the heating element 1 can be screwed on in the support body 7 thereof in an extremely simple manner, while of course taking any casual angular position around the main axis 2.
  • the electric terminals 4 thereof end up by taking a casual angular orientation.
  • the electric terminals 4 of the heating element 1 must be connected to complementary electric contacts 8 provided in a temperature control apparatus that is schematically indicated at 9 in the Figures.
  • This temperature control device 9 may comprise electronic and /or electromechanical control and adjustment means of a per se known type (not shown in the Figures), and is adapted to be connected to the power supply via conductor leads 10.
  • the temperature control device 9 has a substantially box-like structure that must be installed, in a juxtaposed arrangement with respect to the heating element 1, with a definite orientation. It can be readily appreciated that this definite orientation is in contrast with the afore cited casual angular orientation of the heating element 1 , so that it is not suited to allow for a simple mutual coupling of the heating element itself and the device 9.
  • this problem is overcome by arranging the electric terminals 4 or the contacts 8 in correspondence of angular adaptation means 1 1 that enable the heating element 1 and the temperature control device 9 to be mechanically and electrically coupled together in an axial direction, whereby any possible angular displacement of said electric terminals 4 and said complementary contacts 8 with respect to each other is automatically compensated for.
  • the complementary contacts 8 are attached inside said angular adaptation means 11, wherein these means are substantially in the shape of a cup-like member that is mounted, in a freely rotatable manner about the axis 2, in a corresponding receptacle provided within the temperature control device 9.
  • the capability of said cup-like member 11 to freely rotate with respect to the device 9 is ensured, to a sufficient purpose-fitting extent as this will be better described further on, by the flexibility of the conductor leads 10 that substantially extend in a slack manner from said contacts 8 to the outside of said device 9 (through a specially provided opening 12).
  • the cup-like member 1 1 is oriented with the open end portion 13 thereof facing outwards and is preferably so sized as to be able to accommodate the cylindrical portion 5 of the heating element 1 , so as to bring about a mutual mechanical coupling of the component parts 1 and 9 constituting the thermostatically controlled electric heating apparatus of the present invention.
  • the cup-like member 1 1 comprises at least an impression 14, or similar recess, which extends axially from the edge 13 with at least an inclined-plane portion 16 that joins with an axial portion 17 adapted to slidably receive an axial projection 15 of the heating element 1.
  • each one of said impressions is adapted to slidably cooperate with a respective axial projection 15 of the heating element 1 , and each one of said impressions further comprises two convergent inclined planes 16, which are provided for centering purposes and join with an axial portion 17.
  • the angular positions of the various elements are such that, when the projections 15 of the heating element are aligned with the axial portions 17 of the impressions 14, the electric terminals 4 come to lie in alignment with the complementary contacts 8, too.
  • each impression 14 extends for an angular length of 90°, so that, when the device 9 (which is oriented in a manner responding to installation needs) is brought axially near the heating element 1 (which is oriented in a casual manner, as this has already been explained above), each impression 14 will reliably and certainly be engaged by a corresponding projection 15.
  • each projection 15 will slidably engage an inclined plane 16 of a corresponding impression 14.
  • the interaction of the projections 15 and the inclined planes 16 with each other causes the cup-like member 1 1 to rotate about the axis 2 until the projections 15 come to lie in alignment with respective axial portions 17 of the impressions 14.
  • this is the geometrical condition in which also the axial alignment of the electric terminals 4 with the complementary contacts 8 takes place.
  • the relative sizing of the component parts will be calculated in such a manner as to ensure that, in this geometrical condition, no coupling is able to come about between said terminals 4 and adjacent contacts 8 yet.
  • the projections 15 are able to slide along the axial portions 17 of the impressions 14 and, at the same time, the electric terminals 4 get inserted on to the complementary contacts 8, thereby completing an effective electric and mechanical connection of said terminals with said contacts, as well as of the whole heating element 1 and the temperature control device 9.
  • the mechanical attachment of the devices 1 and 9 to each other is advantageously strengthened by the geometrical coupling, i.e. the fitting of shapes, of said cylindrical portion 5 in the cup-like member 11.
  • said cup-like member 11 as arranged between the heating element 1 and the temperature control device 9, constitutes a very simple and effective member that enables the relative angular position of the parts that must be coupled electrically and/ or mechanically with each other to be adapted automatically.
  • heating element 1 and the temperature control device 9 are manufactured separately, i.e. as separate assemblies, under resulting benefits in terms of storage and transport advantages. Furthermore, the final assembly of the whole thermostatically controlled heating apparatus can be completed quickly, conveniently and reliably even by unskilled personnel. All it takes is in fact screwing the heating element 1 on in the support body 7 in an angularly casual position thereof and, then, coupling the device 9 axially to the end portion 3 of the same heating element.
  • thermostatically controlled electric heating apparatus that has been described above by mere way of example, may be the subject of a number of modifications without departing from the scope of the present invention.
  • the angular adaptation member 1 1 may be rotatably mounted on the heating element 1, rather than the device 9.
  • the heating element 1 there may be provided female- type contacts 8, whereas complementary male-type terminals 4 would in this case be provided in the angular adaptation member 1 1.
  • a safety feature constituted by a peripheral groove 18, or the like, provided on the cup-like member 1 1 and adapted to cooperate with a fixed check means 19 provided on the box-like member 9.
  • This groove 18 has a limited angular extension, e.g. 90°, defined by opposed shoulders 20 that are adapted to act as respective angular stop means when they come to abut against said check means 19.
  • This arrangement 18-20 is effective in preventing excessive accidental torsional strains from being imposed to the flexible conductor leads 10, thereby ensuring the proper operating state thereof.

Landscapes

  • Control Of Resistance Heating (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Threshing Machine Elements (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Control Of Temperature (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

L'invention concerne un élément de chauffage électrique (1) et le dispositif de commande de température associé (9) lesquels sont conçus de manière à être axialement couplés l'un à l'autre selon une interposition de moyens d'adaptation angulaires (11) qui permettent en premier lieu l'alignement angulaire mutuel des terminaux électriques respectifs et des contacts électriques (4, 8) puis permet aux mêmes terminaux électriques et contacts électriques complémentaires d'être électriquement et mécaniquement couplés l'un à l'autre lorsqu'ils se déplacent le long d'une longueur de couplage axiale consécutive.
PCT/EP2003/001050 2002-03-04 2003-02-04 Appareil de chauffage electrique a commande thermostatique WO2003075413A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03702593A EP1481448B1 (fr) 2002-03-04 2003-02-04 Appareil de chauffage electrique a commande thermostatique
CA002478148A CA2478148A1 (fr) 2002-03-04 2003-02-04 Appareil de chauffage electrique a commande thermostatique
DE60302223T DE60302223T2 (de) 2002-03-04 2003-02-04 Thermostatisch geregeltes elektrisches heizgerät
AT03702593T ATE309630T1 (de) 2002-03-04 2003-02-04 Thermostatisch geregeltes elektrisches heizgerät

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2002PN000013A ITPN20020013A1 (it) 2002-03-04 2002-03-04 Dispositivo di riscaldamento elettrico a controllo termostatico
ITPN2002A000013 2002-03-04

Publications (1)

Publication Number Publication Date
WO2003075413A1 true WO2003075413A1 (fr) 2003-09-12

Family

ID=27773200

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/001050 WO2003075413A1 (fr) 2002-03-04 2003-02-04 Appareil de chauffage electrique a commande thermostatique

Country Status (7)

Country Link
EP (1) EP1481448B1 (fr)
AT (1) ATE309630T1 (fr)
CA (1) CA2478148A1 (fr)
DE (1) DE60302223T2 (fr)
ES (1) ES2252654T3 (fr)
IT (1) ITPN20020013A1 (fr)
WO (1) WO2003075413A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007073962A1 (fr) * 2005-12-23 2007-07-05 Robert Bosch Gmbh Connexion par fiches a geometrie d'insertion

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU838837A1 (ru) * 1979-04-17 1981-06-15 Предприятие П/Я А-7162 Электрический соединитель
FR2634072A1 (fr) * 1988-07-11 1990-01-12 Francelco Sa Connecteur pour charniere, ensemble charniere-connecteur et procede d'assemblage dudit ensemble
JP2001267006A (ja) * 2000-03-17 2001-09-28 Japan Aviation Electronics Industry Ltd コネクタ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU838837A1 (ru) * 1979-04-17 1981-06-15 Предприятие П/Я А-7162 Электрический соединитель
FR2634072A1 (fr) * 1988-07-11 1990-01-12 Francelco Sa Connecteur pour charniere, ensemble charniere-connecteur et procede d'assemblage dudit ensemble
JP2001267006A (ja) * 2000-03-17 2001-09-28 Japan Aviation Electronics Industry Ltd コネクタ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 26 1 July 2002 (2002-07-01) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007073962A1 (fr) * 2005-12-23 2007-07-05 Robert Bosch Gmbh Connexion par fiches a geometrie d'insertion

Also Published As

Publication number Publication date
DE60302223T2 (de) 2006-07-27
ATE309630T1 (de) 2005-11-15
EP1481448B1 (fr) 2005-11-09
EP1481448A1 (fr) 2004-12-01
ITPN20020013A1 (it) 2003-09-04
DE60302223D1 (de) 2005-12-15
ES2252654T3 (es) 2006-05-16
CA2478148A1 (fr) 2003-09-12

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