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EP1847786A1 - Appareil de chauffage - Google Patents

Appareil de chauffage Download PDF

Info

Publication number
EP1847786A1
EP1847786A1 EP07106364A EP07106364A EP1847786A1 EP 1847786 A1 EP1847786 A1 EP 1847786A1 EP 07106364 A EP07106364 A EP 07106364A EP 07106364 A EP07106364 A EP 07106364A EP 1847786 A1 EP1847786 A1 EP 1847786A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
frame
heating
exchanger body
heating element
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
EP07106364A
Other languages
German (de)
English (en)
Other versions
EP1847786B1 (fr
Inventor
Hartmut Eisenhauer
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.)
Stego Holding GmbH
Original Assignee
Stego Holding 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 Stego Holding GmbH filed Critical Stego Holding GmbH
Priority to PL07106364T priority Critical patent/PL1847786T3/pl
Publication of EP1847786A1 publication Critical patent/EP1847786A1/fr
Application granted granted Critical
Publication of EP1847786B1 publication Critical patent/EP1847786B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/002—Air heaters using electric energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1863—Arrangement or mounting of electric heating means
    • F24H9/1872—PTC
    • 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
    • H05B3/50—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/02—Heaters using heating elements having a positive temperature coefficient

Definitions

  • the invention relates to a heating device according to the preamble of claim 1.
  • Such heaters include a heat exchanger body and resistance heaters disposed in a receiving cavity of the heat exchanger body, surfaces of the receiving cavity being pressed against surfaces of the resistance heaters to ensure good heat transfer.
  • These heaters are widely used, e.g. In control cabinets, to keep the electronics contained therein at low outside temperatures to operating temperature. They are manufactured with different heat outputs in high quantities. The price accepted in the market is relatively low. Different heat outputs but mean an adapted number of resistive elements, so that for each required heat output and a customized heat exchanger body must be provided.
  • the invention is based on the object to produce heaters of the type mentioned for different thermal outputs with simplified production and low cost.
  • a heating device comprising at least one heating element, in particular at least one PTC element, with power supply means and isolators, a heat exchanger body having a first surface for delivering heat to an environment and having a receiving cavity for receiving the heating element, wherein the heating element is arranged in heat-conducting connection to the heat exchanger body in the receiving cavity, achieved in that the heating element is arranged in a frame as a separately manageable component and the frame together with the heating element in the receiving cavity for mounting the heater can be inserted.
  • An essential point of the invention thus lies in the fact that a single heat exchanger body can be used for required different heat outputs, since a corresponding number of heating elements can be introduced into a predetermined frame before assembly depending on the power requirement, whereby effort and storage can be reduced.
  • a symmetrical arrangement ensures a uniform pressure.
  • an essential point of the invention is that during assembly, the heating element or a group of heating elements is much easier to mount in the heat exchanger body, since the frame facilitates handling.
  • the frame has separating means, in particular spacers or windows, which are designed such that a plurality of heating elements can be fixed in the frame separately from one another, preferably equidistantly.
  • separating means in particular spacers or windows, which are designed such that a plurality of heating elements can be fixed in the frame separately from one another, preferably equidistantly.
  • the power supply means comprise plate-shaped electrodes, which are fixable to the frame, including the heating element or the heating elements. These ensure good heat transfer and also good electrical contact and are easy to handle during production. Furthermore, the frame again proves to be of great advantage, because again only a single part, namely the frame together with the electrodes fixed thereto must be inserted into the heat exchanger body.
  • the frame preferably has angle pieces and latching hooks for fixing the electrodes.
  • the frame comprises first guide means and the heat exchanger body second guide means formed cooperatively so that the frame is insertable with the heating element or the heating elements in a defined position in the receiving cavity.
  • first guide means and the heat exchanger body second guide means formed cooperatively so that the frame is insertable with the heating element or the heating elements in a defined position in the receiving cavity.
  • the frame has third guide means, which are designed such that the insulating means covering the power supply means, in particular an insulating foil, e.g. made of polyimide, can be fixed to the frame in a specific position.
  • the insulating means covering the power supply means in particular an insulating foil, e.g. made of polyimide, can be fixed to the frame in a specific position.
  • the third guide means allow an exact alignment of the insulating means prior to introduction into the receiving cavity. Covering the power supply means with an insulating film is particularly advantageous because this process can be done easily and quickly, especially if the insulating film is in one piece and is wrapped around the power supply devices.
  • the heat exchanger body is formed so plastically deformable that the receiving cavity for fixed connection of the heat exchanger body with the heating element or the heating elements is eingbar.
  • a plastic deformation is to be made by pressing and bending, wherein the connection is permanently maintained when the elements provided for the deformation overstretched or be biased so that a sufficient spring action is maintained even when a warming of the heat exchanger body.
  • a heat exchanger body having a predetermined wall thickness which has a second surface for transferring heat from the heating element or from the heating elements to the heat exchanger body, wherein the second surface opposite to a pressing element for pressing the heating elements is provided to the second surface and at in that the pressure element is in particular integrally connected to the heat exchanger body on the one and the other outer side of the heat exchanger body via a plastically deformable connecting portion such that the wall thickness between the second surface and the pressure element to one and the other outside of the heat exchanger body decreases, thereby preventing that the surfaces on which the heating elements or the rest, are bent, which improves the heat transfer permanently.
  • the heating device has a heat exchanger body 200 with a heating unit, which in particular has PTC elements, in a receiving cavity 20 of the heat exchanger body 200, 26.
  • the receiving cavity 20 is closed at both ends with a respective plastic molded part 11, wherein the leads 12, 13 for current supply devices are led out through the one at one end.
  • the heating unit 100 comprises a plurality of heating elements 1, but at least one PTC element, which are arranged in a frame 2, in particular made of plastic, and between plate-shaped electrodes 3, in particular made of aluminum. Via terminal lugs 4.5 of the plate-shaped electrodes 3, the heating elements 1 are supplied with power.
  • the frame 2 has, as shown in Fig. 3 in detail removed, a rectangular or square base and has on two opposite sides in each case a first guide means 6, which is formed on the frame in the form of strips. As part of 2 are provided over the length of the frame 2 extending separating means 7, esp. Spacers or windows, with which a heating element or a plurality of heating elements 1 are separated from each other, preferably equidistantly, in the frame 2 can be fixed. In the areas between the molded strips 6 and the separating means 7 are on the one hand on each side and the edge of the frame 2 angle pieces 8 in the form of rectangular elevations and on the other on each side between the rectangular elevations two spaced detent hooks 9 are provided. With the latching hooks 9, the plate-shaped electrodes 3 are held, the angle pieces 8 fix them in a predetermined position.
  • FIG. 2 shows the assembled heating unit 100 with the electrodes 3 inserted into the latching hooks 9 and fixed in position by the angle pieces 8 with the connection lugs 4, 5 and the heating elements 1 inserted between the electrodes 3.
  • the electrodes 3 are covered with insulating means 10 (see Fig. 6).
  • the inner sides of the strips 6 form the third guide means 14 for positioning and fixing the insulation means 10 in or on the frame 2. For assembly, therefore, a pre-assembly can take place here.
  • the heat exchanger body 200 has fins 21 which define a first surface 22 for exchanging heat between the heat exchanger body 200 and the ambient air or other fluid medium.
  • a second surface 25 is arranged, which faces a pressure surface 27.
  • This pressure surface 27 is formed by a pressure element 26, which is identical to the heat exchanger body 200 is formed in the present embodiment, so that these two parts -at least mentally, can also be reversed; the heating unit thus sits between two identical heat exchanger bodies 200, 26, so that optimum heat dissipation is ensured.
  • the heating unit 100 which is surrounded on both sides by the insulating device 10, is located between the second surface 25 and the contact surface 27 after insertion into the receiving cavity 20.
  • the second surface 25 and the pressure surface 27 are identically shaped and designed such that they fully fit on surfaces of the heating unit 100, so that the strips or first guide means 6 of the frame 2 project beyond the second surface 25 and the pressure surface 27.
  • recesses 28 are provided, in which the strips or first guide means 6 of the frame 2 of the heating unit 100 find place.
  • the recesses 28 are provided in the receiving cavity 20 projecting further ribs 29 as a second guide means 29 which cooperate with the first guide means 6 of the frame 2 such that the heating unit 100 can be inserted into a defined position in the receiving cavity 20.
  • the further ribs 29 each have an area of their frame which results between the latching hooks 9 and the angle pieces 8 and the strips 6.
  • the wall thickness in the region between the second surface 25 and the further rib 29 is smaller than the wall thickness in the region of the second surface 25 and the wall thickness in the region between the further rib 29 and the outside of the heat exchanger body 200 again smaller as the wall thickness in the region between the second surface 25 and the further rib 29, so that the wall thickness of the heat exchanger body 200 decreases from the second surface 25.
  • the heat exchanger body 200 and the identically shaped pressure element 26 are connected to one another via connecting sections 30, 30 '.
  • the heat exchanger body 200, the connecting portions 30,30 'and the pressure element 26 are integrally formed in the embodiment. This is easiest to ensure by production of the heat exchanger body 200,26 extruded part, in particular made of aluminum. The production can be done in "meterware", so that only the heating units to be mounted correspondingly long pieces must be sawn off, which further facilitates the assembly and further reduces the price.
  • the connecting portions 30, 30 ' have a V-shaped cross section, so that buckling bending at forces perpendicular to the surface of the heating unit 100 is easy to accomplish.
  • the connecting sections 30, 30 'each comprise a buckling element 31, which is connected to the heat exchanger body 200 or the pressure element 26 via thinned material points which act like hinges 32, 33.
  • buckling elements only a relatively small force must be used to ensure plastic deformation in order to ensure plastic deformation.
  • it can be ensured in this way that the material deforms in exactly the place that is desired by the designer.
  • connecting portion 30 acting as the bending element 34 and the hinges 32, 33 are relatively stiff connecting portions 35, 36.
  • the heat exchanger body 200 according to the second embodiment and FIG. 5 differs in its embodiment from that according to the first embodiment in that no further ribs 29 are provided in the recesses 28. Otherwise, the reference numerals in Fig. 5 refer to the same and like-acting parts as in the first embodiment. A decreasing wall thickness in the region between the second surface 25 and the outside of the heat exchanger body 200 may also be advantageous in this embodiment.
  • the latching hooks 9 and the angle pieces 8 are arranged on the edge of the frame 2, in which the electrodes and the insulating means or only the electrodes are fixed and fixed.
  • the reference numerals in Fig. 6 refer to the same and like-acting parts as in the first embodiment.
  • FIG. 4 and FIG. 7 which has a heater with a Heat exchanger body and a heating unit respectively according to the second embodiment shows, worked with pressing tools 40,42, which can attack 26 in the region of the recesses 28 on the surface 22 of the heat exchanger body 200 and on the corresponding surface of the pressure element 26.
  • the pressure for deformation is thus applied outside the region of the heating unit 100, so that the necessary, slight overstretching of the connecting portions 30, 30 'can be carried out safely for the heating unit 100.
  • a certain overstretching is in fact necessary because the buckling elements 31 can spring back somewhat even with plastic deformation and thus a sufficient spring action is maintained even with a heating of the heat exchanger body 200,26.
  • the bending elements 31 bend, as shown schematically in FIGS. 8 and 9.
  • the heat exchanger body 200 and the pressure element 26 in particular in a configuration with decreasing wall thickness no bending moment is exerted, so that their deformation is prevented by additional, non-reinforcing the contact forces.
  • the surfaces on which the heating unit 100 rests are thus not bent, which permanently improves the heat transfer.
  • pressing tools 40-43 which are moved perpendicular to the surface of the heating unit 100
  • pressing tools 44, 45 see FIG. 4, or FIG the connecting portions 30, 30 'or the buckling elements 31 engage and are moved toward one another parallel to the surfaces of the heating unit 100.
  • the bending angle ⁇ see Fig. 4, and Fig. 5
  • the buckling elements 31 also is reduced, so that the second surface 25 and the pressing surface 27 are pressed onto the surfaces of the heating unit 10.
  • the heating device thus produced with a heat exchanger body 200, 26 and a heating unit 100, respectively according to the first embodiment, in the receiving cavity 20, the heating unit 100, wherein the electrodes 3 are covered with an insulating device 10, in particular with an insulating film, and the receiving cavity 20 at both ends closing plastic moldings 11.
  • an insulating device 10 in particular with an insulating film
  • the plastic molded parts 11, which close the receiving cavity 20, can thus simultaneously serve to keep the heating unit 100 in the adjusted position before the deformation process or during the deformation.
  • Each of the described heating units 100 may be introduced into one or the other of the described heat exchanger bodies 200, 26.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Resistance Heating (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP07106364A 2006-04-19 2007-04-18 Appareil de chauffage Active EP1847786B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07106364T PL1847786T3 (pl) 2006-04-19 2007-04-18 Urządzenie grzewcze

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006018150A DE102006018150B4 (de) 2006-04-19 2006-04-19 Heizeinrichtung

Publications (2)

Publication Number Publication Date
EP1847786A1 true EP1847786A1 (fr) 2007-10-24
EP1847786B1 EP1847786B1 (fr) 2012-01-11

Family

ID=38325239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07106364A Active EP1847786B1 (fr) 2006-04-19 2007-04-18 Appareil de chauffage

Country Status (6)

Country Link
EP (1) EP1847786B1 (fr)
AT (1) ATE541162T1 (fr)
DE (1) DE102006018150B4 (fr)
DK (1) DK1847786T3 (fr)
ES (1) ES2376900T3 (fr)
PL (1) PL1847786T3 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012146219A1 (fr) * 2011-04-23 2012-11-01 Al Bernstein Corps chauffant économe en énergie muni d'éléments électriques porteurs d'énergie et procédé de fabrication dudit corps chauffant économe en énergie
WO2013060647A1 (fr) * 2011-10-24 2013-05-02 Stego-Holding Gmbh Corps de refroidissement et de retenue pour éléments chauffants, appareil de chauffage et procédé de fabrication d'un corps de refroidissement et de retenue
WO2016177492A1 (fr) * 2015-05-04 2016-11-10 Robert Bosch Gmbh Dispositif de chauffage
US9661688B2 (en) 2011-10-24 2017-05-23 Stego-Holding Gmbh Cooling and retaining body for heating elements, heating appliance and method for producing a cooling and retaining body
WO2017085269A1 (fr) * 2015-11-20 2017-05-26 Dbk David + Baader Gmbh Ensemble radiateur pour un dispositif de chauffage électrique et dispositif de chauffage électrique
WO2022233963A1 (fr) * 2021-05-05 2022-11-10 Stego-Holding Gmbh Dispositif de retenue, appareil de chauffage et procédé
USD1006966S1 (en) 2021-05-05 2023-12-05 Stego-Holding Gmbh Convector heater
USD1030013S1 (en) 2021-08-17 2024-06-04 Stego-Holding Gmbh Convector heater
USD1030014S1 (en) 2021-05-05 2024-06-04 Stego-Holding Gmbh Convector heater

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008056083B4 (de) * 2008-07-21 2021-08-12 Borgwarner Ludwigsburg Gmbh Verfahren zum Herstellen einer Heizvorrichtung und Heizvorrichtung
DE102011077922B4 (de) 2011-06-21 2024-10-10 Mahle International Gmbh Wärmeübertrager
FR3073035B1 (fr) 2017-10-30 2020-07-24 Valeo Systemes Thermiques Tube pour dispositif de chauffage pour vehicule automobile dont une paroi laterale forme un relief
DE102021112603A1 (de) 2021-05-14 2022-11-17 Stego-Holding Gmbh Heizeinrichtung und Verfahren zur Herstellung einer Heizeinrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003005770A2 (fr) * 2001-07-02 2003-01-16 Soy Erdinc Chauffage par panneau convecteur electrique
EP1574803A2 (fr) * 2004-02-27 2005-09-14 Marin Camara, Miguel Radiateur électrique modulaire
DE202005020765U1 (de) * 2005-08-10 2006-07-06 Stego-Holding Gmbh Vorrichtung zum Übertragen von Wärme von einem Heizelement auf Umgebungsluft

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3042420A1 (de) * 1980-11-11 1982-06-24 Fritz Eichenauer GmbH & Co KG, 6744 Kandel Elektrischer heizkoerper mit ein oder mehreren flachen, quaderfoermigen heizelementen
JP2532502Y2 (ja) * 1991-02-20 1997-04-16 株式会社村田製作所 発熱ユニット
DE20121115U1 (de) * 2001-12-21 2003-04-24 Fritz Eichenauer GmbH & Co. KG, 76870 Kandel Elektrische Heizeinrichtung zum Beheizen einer korrosiven Flüssigkeit in einem Kfz
DE10360159A1 (de) * 2003-12-20 2005-07-21 Eichenauer Heizelemente Gmbh & Co. Kg Profilrohr und Verfahren zum Verspannen von Funktionselementen in einem solchen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003005770A2 (fr) * 2001-07-02 2003-01-16 Soy Erdinc Chauffage par panneau convecteur electrique
EP1574803A2 (fr) * 2004-02-27 2005-09-14 Marin Camara, Miguel Radiateur électrique modulaire
DE202005020765U1 (de) * 2005-08-10 2006-07-06 Stego-Holding Gmbh Vorrichtung zum Übertragen von Wärme von einem Heizelement auf Umgebungsluft

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012146219A1 (fr) * 2011-04-23 2012-11-01 Al Bernstein Corps chauffant économe en énergie muni d'éléments électriques porteurs d'énergie et procédé de fabrication dudit corps chauffant économe en énergie
WO2013060647A1 (fr) * 2011-10-24 2013-05-02 Stego-Holding Gmbh Corps de refroidissement et de retenue pour éléments chauffants, appareil de chauffage et procédé de fabrication d'un corps de refroidissement et de retenue
RU2599530C2 (ru) * 2011-10-24 2016-10-10 Штего-Холдинг Гмбх Охлаждающий и удерживающий корпус для нагревательных элементов, нагревательное устройство и способ изготовления охлаждающего и удерживающего корпуса
US9661689B2 (en) 2011-10-24 2017-05-23 Stego-Holding Gmbh Cooling and holding device for heating-elements, heater and method for producing a cooling and holding device
US9661688B2 (en) 2011-10-24 2017-05-23 Stego-Holding Gmbh Cooling and retaining body for heating elements, heating appliance and method for producing a cooling and retaining body
WO2016177492A1 (fr) * 2015-05-04 2016-11-10 Robert Bosch Gmbh Dispositif de chauffage
WO2017085269A1 (fr) * 2015-11-20 2017-05-26 Dbk David + Baader Gmbh Ensemble radiateur pour un dispositif de chauffage électrique et dispositif de chauffage électrique
WO2022233963A1 (fr) * 2021-05-05 2022-11-10 Stego-Holding Gmbh Dispositif de retenue, appareil de chauffage et procédé
USD1006966S1 (en) 2021-05-05 2023-12-05 Stego-Holding Gmbh Convector heater
USD1009234S1 (en) 2021-05-05 2023-12-26 Stego-Holding Gmbh Convector heater
USD1009235S1 (en) 2021-05-05 2023-12-26 Stego-Holding Gmbh Convector heater
USD1030014S1 (en) 2021-05-05 2024-06-04 Stego-Holding Gmbh Convector heater
USD1031955S1 (en) 2021-05-05 2024-06-18 Stego-Holding Gmbh Convector heater
USD1038348S1 (en) 2021-05-05 2024-08-06 Stego-Holding Gmbh Convector heater
USD1030013S1 (en) 2021-08-17 2024-06-04 Stego-Holding Gmbh Convector heater

Also Published As

Publication number Publication date
ES2376900T3 (es) 2012-03-20
DE102006018150A1 (de) 2007-11-08
EP1847786B1 (fr) 2012-01-11
ATE541162T1 (de) 2012-01-15
DE102006018150B4 (de) 2008-01-24
DK1847786T3 (da) 2012-04-23
PL1847786T3 (pl) 2012-06-29

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