EP0665943B1 - Plattenradiator - Google Patents

Plattenradiator Download PDF

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Publication number
EP0665943B1
EP0665943B1 EP94900002A EP94900002A EP0665943B1 EP 0665943 B1 EP0665943 B1 EP 0665943B1 EP 94900002 A EP94900002 A EP 94900002A EP 94900002 A EP94900002 A EP 94900002A EP 0665943 B1 EP0665943 B1 EP 0665943B1
Authority
EP
European Patent Office
Prior art keywords
side wall
radiator
plate
collecting channels
channels
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
EP94900002A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0665943A1 (de
Inventor
Dennis M. Webster
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.)
Stelrad Radiatorenwerke GmbH
Original Assignee
Stelrad Radiatorenwerke GmbH
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 Stelrad Radiatorenwerke GmbH filed Critical Stelrad Radiatorenwerke GmbH
Publication of EP0665943A1 publication Critical patent/EP0665943A1/de
Application granted granted Critical
Publication of EP0665943B1 publication Critical patent/EP0665943B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
    • F28F9/268—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators by permanent joints, e.g. by welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0035—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for domestic or space heating, e.g. heating radiators

Definitions

  • the invention relates to a plate radiator with at least one radiator plate formed from a front side wall and a rear wall welded to it, with water channels which are formed in the front side wall and in the rear side wall and which run alongside one another and which run across two longitudinally parallel edges of the radiator plate, transversely to the water channels mentioned and only in the rear side wall molded channels with each other and with the connecting piece of the radiator plate, as well as with connecting pieces provided for connecting several radiator plates, if necessary, wherein the collecting channels are welded to the connecting pieces of the radiator plate and with optionally provided connecting pieces.
  • the connecting pieces for the inlet and outlet of the heat transfer medium which is generally water
  • connecting pieces, which connect the individual radiator plates to one another in the case of plate radiators which comprise several radiator plates are made by hand or welded with welding robots. This is a process which considerably increases the production outlay and can hardly be incorporated into the automated production of the radiator plates, in the context of which the radiator plates are formed from sheet steel and joined together by pressure welding.
  • the plate radiator according to the invention of the type mentioned at the outset is characterized in that the connecting pieces and the connection pieces which may be provided are welded to the connection points of the radiator plate located at the collecting ducts by electrical resistance pressure welding and into the only in the rear side wall of the respective radiator plate, which have a substantially trapezoidal cross-section, support rings with parallel, circular support surfaces of different diameters are inserted at the connection points of these connecting pieces, and here the smaller support surface in diameter on which the shorter parallel side of the trapezoidal cross-section is the zone of the rear side wall forming the collecting channels, the larger supporting surface in diameter lies at the location of the front side wall opposite this zone, in the plane of connection of the front side wall and rear side wall, and the lateral surface of the support rings runs approximately following the oblique sides of the trapezoidal cross section of the collecting channels formed by the rear side wall.
  • press marks can easily form at the point of the front wall opposite the welding point, but such press marks appear less as a result of the bulge provided at this point for the formation of a collecting channel in the front wall than on a substantially flat surface, of which only project the much smaller water channels, as is the case with a plate radiator of the type mentioned at the beginning; in addition, apparently less attention has been paid to avoiding such press marks in the known radiators, while special attention was paid to plate radiators of the type mentioned at the outset, even in small details, especially in the peripheral areas where the connecting pieces and connecting pieces are to be placed, and therefore So far, a complex welding of these sockets has been provided.
  • the special technique of the design according to the invention now enables a substantial reduction in the effort required for welding the connecting piece and connecting piece, without the advantageous and error-free appearance being impaired or endangered thereby.
  • An embodiment which is favorable with regard to the stability of the support rings and with regard to the force transmission during the pressure welding process is characterized in that the support rings are of a solid, truncated cone shape, the conical outer surface running on the oblique sides of the trapezoidal cross section of the collecting channels.
  • An embodiment which is advantageous with regard to the distribution of the pressure forces applied during the welding process in the region of the front wall of the radiator plate opposite the welding point and which is particularly advantageous with regard to the aim of avoiding the occurrence of press marks, is characterized in that the outer diameter of the larger supporting surface of the Support rings about 1.5 times the outer diameter of the support surface, which is smaller in diameter.
  • the axially extending passage of the support rings widens conically at least over part of its length towards the larger support surface in diameter.
  • the axially extending passage of the support rings has a cylindrical section adjoining the support surface with a smaller diameter and, following this, a cone-like shape to the support surface with a larger diameter has expanding section.
  • FIGS. 1 to 3 The embodiment of a plate radiator shown in FIGS. 1 to 3 consists of a single radiator plate 1, which is formed from a front side wall 2 and a rear side wall 3, which are welded together.
  • the channels 5 are connected via two collecting channels 6, 7 to one another and to the connecting pieces 8, 9 provided for the inlet and outlet of the heating medium on the radiator plate.
  • the collecting channels 6, 7 are formed by bulges 10, which are only molded into the rear wall 3. These bulges 10 or the collecting channels 6, 7 formed by these bulges run along mutually parallel edges 11, 12 of the radiator plate 1 transversely to the channels 5.
  • the collecting channels are delimited by the inner surface of the front side wall 2, which, apart from the bulges 4 forming the channels 5, follows the plane 13 in which the front side wall 2 and the rear side wall 3 are joined.
  • the visible side formed by the front side wall 2 is designed as a flat surface, from which only the bulges 4, which form the channels 5, protrude or protrude from the outer surface 14 forming the visible side.
  • the connecting pieces 8, 9 are welded at points 15 of the radiator plate 1 located on the collecting channels 6, 7 by electrical resistance pressure welding.
  • the collecting channels 6, 7 have a substantially trapezoidal cross section, and it are inserted in these collecting channels at the connection points 15 formed frustoconical, massive support rings 16, which hold back an impression of the lying in the area of the connection points 15, the collecting channels 6, 7 delimiting zones of the front wall 2 and the rear wall 3 under the pressure forces applied during the welding process.
  • the support rings 16 thus also secure the wall parts located at the welding points against deformation and thus contribute to the formation of precise and reliable welded connections.
  • the support rings 16 have mutually parallel annular support surfaces 17, 18, the support surface 17 having a smaller diameter, on which lies the zone 20 of the rear side wall 3 forming the shorter parallel side 19 of the trapezoidal cross section of the collecting channels 6, 7, and the support surface 18 which is larger in diameter the point 21 of the front side wall 2 lying opposite this zone 20 and located in the connecting plane 13 of the front side wall 2 and the rear side wall 3.
  • the course of the conical lateral surface 22 of the support rings 16 follows the inclined sides 23 of the trapezoidal cross section of the collecting channels 6, 7 formed by the rear wall 3.
  • connection points 15 are distributed in a simple and effective manner at the connection points 15 opposite points 21 of the front wall 2 is achieved, with the formation of the support rings a uniform distribution over the larger diameter support surface 18 and a reduction in surface pressure can be achieved.
  • the formation of press marks visible on the outside of the front wall can be largely counteracted.
  • the outer diameter 24 of the larger-diameter support surface 18 is approximately one and a half times the outer diameter 25 of the smaller-diameter support surface 17.
  • the support rings 16 have an axially extending passage 26 through which the flow of the medium from the connecting piece 8, 9 in question into the radiator or from the radiator into a connecting piece takes place. It is advantageous for the positioning of the support rings at the connection points 15 and for the formation of the connection to the connection pieces 8, 9, if the passage 26 has a cylindrical section 27 adjoining the smaller supporting surface 17, and it is advantageous for the flow connection of the passage 26 to the collecting duct in which the relevant support ring 16 is arranged if the passage 26 widens in a conical manner , ie has a conically widening section 28 towards the larger support surface 18 in diameter.
  • the distance between the support surfaces 18 and the opposing locations 21 of the front wall 2 can be selected so that the zones of the front wall 2 and the rear wall 3 delimiting the collecting channels deform only elastically during the pressure welding process until they rest against the support surfaces 17, 18 of the support rings 16 and after the welding process has ended, spring back into the position forming a distance between the support surfaces 18 and the opposite locations 21 of the front wall 2.
  • FIGS. 1 to 3 show an embodiment of a plate radiator formed from two radiator plates.
  • the radiator plates 1 are arranged with their rear side walls 3 facing one another and connected to one another by connecting pieces 29.
  • the two radiator plates 1 are provided in the same way as the embodiment shown in FIGS. 1 to 3 with channels 5 and collecting channels 6, 7, the collecting channels 6, 7 being formed by bulges 10 in the rear side walls 3 and the front side walls 2, with the exception of the the bulges 4 forming channels 5 run in the region of the collecting channels 6, 7 at the connecting plane 13, in which the front side wall 2 is joined to the rear side wall 3 of the radiator plate 1 concerned.
  • the connecting piece 29, which is a flow connection between the Manufacture two radiator plates 1, are welded to the plate radiators 1 at connection points 15 which lie on the bulges 10 of the rear side wall 3 forming the collecting channels 6, 7.
  • This welded joint is designed as a resistance pressure weld.
  • frustoconical support rings 16 are inserted into the collecting channels 6, 7, which are formed analogously to the embodiments according to FIGS. 1 to 3.
  • the radiator plates 1 can be provided with connecting pieces 8, 9 to form inlet and outlet connections for the heating medium.
  • the connecting pieces 29 can also be formed by providing connecting pieces 30 on the connecting pieces 29 to form the inlet and outlet connections.
  • Such connecting pieces can, as shown in FIG. 4, point downwards or point in other directions, in particular point horizontally.
  • connection pieces which, like the connection pieces 8, 9 in the embodiment according to FIGS. 1 to 3, are attached directly to the radiator plate or plates.
  • the support rings 31 inserted into the collecting channels in the radiator plate 1, of which only the collecting channel 6 is shown, are formed without cutting from flat material.
  • the support surface 17 of the support rings 31 with a smaller diameter is provided on the shorter parallel side 19 of the trapezoidal cross section of the zone 20 of the rear side wall 3 forming the relevant collecting duct, and that in diameter Larger support surface 18 of the support rings 31 at the location of the front wall 2 opposite this zone 20, which location lies in the connecting plane 13 of the front wall and rear wall 3.
  • the lateral surface 32 of the support rings 31 runs approximately following the inclined sides 23 of the trapezoidal cross section of the collecting channels formed by the rear side wall 3.
  • the stability of the support rings 31, in particular on the support surface 18, is increased by a small circumferential indentation 33.
  • the connecting piece of this plate radiator, from which the connecting piece 8 is shown in Fig. 5, are welded by electrical resistance pressure welding to the points 15 located on the collecting channels of the rear wall 3 of the radiator plate 1.
  • the openings 34 provided at these points 15 establish the connection from the connecting piece 8 to the interior of the radiator.
  • the edge 35 of the openings 34 is bent inwards, and the support rings 31 are inserted with their passage 36 onto this edge; the support rings, which are inserted between the front side wall and the rear side wall prior to the production of the welded connections and are thereby inserted onto the edge 35 of the openings 34 in question, are against lateral displacement with respect to the point at which the welded connection is made with the relevant connecting piece , secured.
  • the passage 36 widens towards the support surface 18.
  • the edge 35 can also be bent outwards in the passage 36, as indicated by the dashed line 37, so that the support rings are secured against unintentional loosening in the event of transport or other manipulations on the rear walls already provided with support rings.
  • connecting pieces which are often also called connecting sleeves, can also be parts of so-called connecting sets, which comprise connecting pieces, connecting pipes and usually also valves and form connections between standardized placed line connection points and the connection points provided on the radiator plates.
  • the radiator according to the invention can also be formed from more than two radiator plates, which are analog of the embodiment according to FIG. 4 are connected to one another by means of connecting pieces which establish a flow connection between the collecting channels provided in the individual radiator plates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Led Device Packages (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Resistance Heating (AREA)
EP94900002A 1992-10-30 1993-10-29 Plattenradiator Expired - Lifetime EP0665943B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0215092A AT401575B (de) 1992-10-30 1992-10-30 Plattenradiator
AT2150/92 1992-10-30
PCT/AT1993/000167 WO1994010521A1 (de) 1992-10-30 1993-10-29 Plattenradiator

Publications (2)

Publication Number Publication Date
EP0665943A1 EP0665943A1 (de) 1995-08-09
EP0665943B1 true EP0665943B1 (de) 1996-09-25

Family

ID=3528840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94900002A Expired - Lifetime EP0665943B1 (de) 1992-10-30 1993-10-29 Plattenradiator

Country Status (9)

Country Link
EP (1) EP0665943B1 (sk)
AT (2) AT401575B (sk)
CZ (1) CZ107195A3 (sk)
DE (1) DE59304002D1 (sk)
FI (1) FI951676A (sk)
HU (1) HUT70596A (sk)
NO (1) NO179728C (sk)
SK (1) SK53695A3 (sk)
WO (1) WO1994010521A1 (sk)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9519680D0 (en) * 1995-09-27 1995-11-29 Itw Ltd Spacer member and method of making a spacer member
AT408276B (de) * 1997-05-12 2001-10-25 Vogel & Noot Waermetechnik Ag Paneel- bzw. flachheizkörper
IES20000093A2 (en) * 1999-02-12 2000-10-18 Baggrave Ltd A radiator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2317828C3 (de) * 1973-04-09 1980-11-13 Schaefer Werke Kg, 5908 Neunkirchen Flacher Hohlkörper, insbesondere Plattenheizkörper, mit angeschweißten Fittings
DE3114287C2 (de) * 1981-04-09 1984-11-29 Harry 6472 Altenstadt König Verfahren zur Herstellung eines prismatischen Querschnitt aufweisenden Hohlformlings als Stützteil zur Schweißverbindung
DE3475490D1 (en) * 1984-09-01 1989-01-12 Koenig Metallwarenfab Gmbh Method of making an extruded fitting for panel radiators
DE3440272A1 (de) * 1984-11-03 1986-05-15 Hans Berg Verwaltungsgesellschaft mbH und Co KG, 5226 Reichshof Verfahren zum herstellen eines stuetzteils fuer flachheizkoerper
DE9217149U1 (de) * 1992-12-16 1993-02-25 Prof. Dr. E. Sommer GmbH & Co. Patentverwaltungs-KG, 4800 Bielefeld Flachheizkörper

Also Published As

Publication number Publication date
WO1994010521A1 (de) 1994-05-11
NO951632L (no) 1995-04-28
AT401575B (de) 1996-10-25
ATA215092A (de) 1996-02-15
HU9500923D0 (en) 1995-05-29
ATE143480T1 (de) 1996-10-15
EP0665943A1 (de) 1995-08-09
CZ107195A3 (en) 1995-08-16
NO179728B (no) 1996-08-26
FI951676A0 (fi) 1995-04-07
NO179728C (no) 1996-12-04
NO951632D0 (no) 1995-04-28
HUT70596A (en) 1995-10-30
SK53695A3 (en) 1995-12-06
FI951676A (fi) 1995-04-07
DE59304002D1 (de) 1996-10-31

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