EP1111962B1 - Dispositif de chauffage possédant une enveloppe tubulaire divisée - Google Patents

Dispositif de chauffage possédant une enveloppe tubulaire divisée Download PDF

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Publication number
EP1111962B1
EP1111962B1 EP00127565A EP00127565A EP1111962B1 EP 1111962 B1 EP1111962 B1 EP 1111962B1 EP 00127565 A EP00127565 A EP 00127565A EP 00127565 A EP00127565 A EP 00127565A EP 1111962 B1 EP1111962 B1 EP 1111962B1
Authority
EP
European Patent Office
Prior art keywords
heating
pipe section
heater
heating device
unit
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
EP00127565A
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German (de)
English (en)
Other versions
EP1111962A3 (fr
EP1111962A2 (fr
Inventor
Georg Stadler
Hannes Wagner
Rene 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.)
Filing date
Publication date
Application filed by Bleckmann GmbH and Co KG filed Critical Bleckmann GmbH and Co KG
Publication of EP1111962A2 publication Critical patent/EP1111962A2/fr
Publication of EP1111962A3 publication Critical patent/EP1111962A3/fr
Application granted granted Critical
Publication of EP1111962B1 publication Critical patent/EP1111962B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • 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
    • H05B2203/021—Heaters specially adapted for heating liquids

Definitions

  • the present invention relates to a heating device for heating media according to the preamble of claim 1.
  • Such heaters are especially for heating liquid Media, such as the washing water of washing machines for laundry or harness used.
  • the at least one heating element or the at least one heating unit containing jacket tube of the heater in the to be heated washing liquid, which received in a suitable container is.
  • the heater is in an opening provided for this purpose Container by means of a base body in the form of, for example, a flange held.
  • the at least one Heating element of the heating unit which in the case of z. B. electric tubular heaters Form of a heating coil of an electrical resistance wire, in the Inside of the jacket tube inserted and in a certain axial and radial Position opposite the casing pipe arranged in this.
  • the position of the heating coil within the jacket tube is determined by the fact that possibly still connection and / or fuse elements that the heating coil with an electric Connect power source, must also be arranged in the jacket tube.
  • the heating coil at one or both front ends one axial distance to the front ends of the jacket tube. This distance must be at the further production steps, such as the filling of an electrically insulating, However, good thermal conductivity insulating material, preferably magnesium oxide, in the Casing tube to be maintained.
  • the heating coil is fixed at both ends. At the one end-side end, this can relatively easily accomplish that the heating coil or possibly already on the heating coil attached connecting element temporarily with a suitable plastic part is provided, which partially projects into the interior of the jacket tube and to the front edge of the casing tube is supported. This plastic part will be in front the insertion of the heating coil in the jacket tube at that end of the heating coil or the possibly existing connection element attached, which is not is passed through the jacket tube.
  • the heating devices due to the different fields of use of the heating devices, the different performance requirements of the washing machine manufacturer to the heaters, the variety of safety regulations in the possible marketing countries, etc. the heating devices to be found in practice despite having the same function, different constructions with different control and / or security elements. This diversity in construction causes considerable costs in storage and manufacturing. The differences are often less in the at least one heating element and the Basic body forming flange, but in the hedging and control or control elements.
  • the heaters are subject to high manufacturing tolerances, compliance with them by additional production steps, such as "re-cut pipe end”, “Insulating insulation”, etc. is achieved. This in turn increases the Labor costs per heater and thus the total manufacturing costs.
  • US Pat. No. 3,934,116 discloses a heating device of the type mentioned in the opening paragraph. in which the end of the jacket tube is closed by a sleeve made of soft rubber becomes. On the one hand a good seal and on the other hand a good fixation To achieve this socket made of soft rubber, the jacket tube end by means of a Tool against a flange verstemmet, so that the resulting deformations both the jacket tube in the flange and the sleeve of soft plastic material fixed in the jacket tube.
  • the assembly of the at least one heating element simplifies the heating unit considerably.
  • the first pipe section can now a have such axial length that it is shorter than the heating element, so that this after insertion into the first pipe section at least one, but preferably protrudes at both ends of the first pipe section, if necessary, with a connecting bolt attached to the heating coil end.
  • suitable Assembly aids which can be very simple and therefore inexpensive are, then the two ends of the heating element, if necessary, respectively may be provided with a connecting element, detected, so that the heating element set in its radial and axial position relative to the first pipe section is. This can then be followed by further production steps, such as z. B. the filling of the insulating material.
  • the second pipe section can be such a freely selectable axial Have length, that this end or the connecting element also from the enclosed jacket tube formed from the first and the second pipe section is that and possibly also room for other elements, such as fuse elements, is present in this "total" coat tube.
  • first pipe section and the at least second pipe section made of different materials can be made for each of these pipe sections to the Fulfillment of the function of the respective pipe section suitable material can be used. So can of the first pipe section of an at least highly thermally conductive material and / or a corrosion resistant material and the at least second pipe section be made of an at least electrically insulating material. For the At least the second pipe section, it has proved to be advantageous if this from a plastic material, preferably a two-component plastic is made.
  • the invention can be used with different heating devices.
  • the heating element is only at one end End of the jacket tube of the heating unit.
  • the invention can be used in heaters in which the Heating coil protrudes only at a front end of the first pipe section, if necessary with a connecting element or connecting bolt attached to the heating coil end.
  • the invention can also be in the way Use that the heating element at both ends of the jacket tube protrudes.
  • first pipe section and the at least second pipe section be so interconnected that on both sides of the junction in Inside the pipe sections each a seal is provided, which is an intrusion prevent the medium in the interior of the jacket tube. It is more advantageous however, if the first pipe section and the at least second pipe section at least medium-tightly connected to each other, d. H. so if the connection is designed so that the connection itself is medium-tight. in this connection
  • an adhesive or a resin may be used in the connection the two pipe sections is used together and the next to the function holding also performs the function of sealing.
  • the two pipe sections both have the same outer and inner diameter.
  • the first pipe section or at least the second pipe section provided with an outer diameter smaller than the inner diameter the other pipe section is, the two pipe sections be connected in that they are plugged into each other and with a corresponding bonding agent, preferably an adhesive or a resin medium sealed to each other.
  • a corresponding bonding agent preferably an adhesive or a resin medium sealed to each other.
  • one of the two pipe sections, the first Pipe section or at least the second pipe section by inserting a the two pipe sections is mounted in the other pipe section. at a both having a circular cross-section first pipe section as well as a same at least second pipe section this means
  • a precise alignment of the two components to each other This is again costly.
  • the preferably at least second pipe section at its pointing to the first pipe section end with a Mounting contour is provided. This mounting contour can with pipe sections with a circular cross-section through one in the pipe wall of at least second pipe section provided, annular and the first Pipe section to be formed towards open slot.
  • This annular slot can with an insertion aid for the mounting end of the first pipe section be provided, for example, by one of the outer wall side of the second Pipe section to the inner wall side extending oblique cone surface formed is. It should be noted that, of course, the first pipe section can be equipped with such a mounting contour.
  • the link between the first pipe section and the at least second pipe section opposite sealed to the penetrating medium can Moisture from the outside of the medium to be heated receiving Penetrate container into the heater.
  • the at least second pipe section in its interior with a sealing device for sealing the interior of the first pipe section is provided against penetrating moisture from the outside.
  • the axial length of the first pipe section be chosen freely.
  • the axial length of the first Tube section equal, longer or shorter than that of the at least one heating element.
  • a base body In addition to its holding function still can take over various other functions. So can the main body at least one connecting device for connecting the at least one heating element with an energy source, which in the case of an electrical Heating device is a source of electricity. Such a connection device but can also be provided in the at least second pipe section be.
  • the at least one connecting device in the base body or the at least second pipe section can be used for heaters different performance and / or hedging requirements a body or a second pipe section are used, wherein the at least one Connecting device already before mounting the other components of the heater has been attached. At least the main body or the second Pipe section or the connecting device then no longer have to be different Heaters with different performance and / or hedging requirements be adjusted. This is opposite to those in the prior art known heaters a considerable step forward, since there the Connection devices are part of the heating elements. Because the heating elements the known heating devices due to the different power and / or Hedging requirements are structured differently, the Terminal devices as components of the heating elements both in terms of their constructive structure as well as in terms of their location from each other strongly differ. As a result, the above-mentioned significant Costs associated with storage and manufacturing. By the new solution according to the invention can reduce these costs.
  • the at least one connection device in the basic body or the at least second pipe section only added is.
  • the forces for example, when attaching the fasteners for a connection of a power source to the terminal device and thus with the at least one heating element occur, then, for example, on the Heating element itself be supported, as is the case in the prior art.
  • the main body or the second Pipe section which supports at least one connection device frictionally it may also be advantageous if the main body or the second Pipe section which supports at least one connection device frictionally.
  • the second pipe section can also be provided to further components or Building blocks of the kit for a heating device. It can do this be a security device or a control device. In order to this device or modules can be mounted safely in a simple manner can, it may also be advantageous that the at least second pipe section in its interior with mounting contours for holding the at least a connection device and / or control device and / or safety device is provided.
  • the at least one connecting device, the at least a control device and the at least one securing device in the at least second pipe section before attaching the first pipe section can be mounted.
  • the first pipe section with the heating element and the possibly existing insulating material as well as at the same time the second pipe section with the devices or components to be provided therein finished.
  • the second pipe section can with the above-mentioned body be connected.
  • This compound can be both solvable and insoluble and beyond that also be integrally formed.
  • at least second pipe section and / or the main body as a molded part of a Plastic, preferably made of a two-component plastic.
  • the heater by means of a mounting flange, a clamping device and a Has sealing element, receiving in the opening of a medium to be heated Container arranged.
  • this solution is relatively expensive.
  • a reliable seal can be achieved without this separate clamping device is necessary.
  • the seal can be on the body be pushed or sprayed on, which increases the material for the Seal significantly reduced compared to the prior art, as the seal only as a circumferential "ring" is formed and no full body as a sealing element necessary is.
  • the main body With appropriate material selection for the main body may be the wall thickness of the area of the main body to which the gasket is sprayed by appropriate design for applying the sealing forces be used due to existing elasticity. This still results a simpler installation of the entire heater, as the main body only must still be pressed into the container opening and not as in the state of Technique the tensioning device must be operated. Will the main body out a plastic, preferably made of a two-component plastic, can be easily formed connection options, for. B: rest 5 tub. Also, connection aids can be applied by fusing. Finally, it should be noted that the base body in this case formed as a flange can be.
  • the main body allows the integration of other components or Assemblies, such. B. an NTC sensor.
  • the main body can thereby, or independently thereof, hollow, which leads to saving of material.
  • the heating device for example, be a heating cartridge.
  • a first pipe section and a second pipe section available.
  • Heating device designed as a tubular heater it may in principle also a first pipe section and a second pipe section include.
  • the second pipe section on the main body and the second pipe section opposite end face of the second pipe section also on the Body attached.
  • a first pipe section and two second pipe sections are provided, the two second pipe sections respectively at the front ends of the first pipe section are attached.
  • a first, a second and a third pipe section are provided, wherein the second and the third Pipe section respectively at the front ends of the first pipe section are attached.
  • the second and the third pipe section with a formed different axial length.
  • the heaters passed through an opening in the tub or container wall in practice and there by means of a Flan unit, as for example from the EP patent application 0 551 914, fixed.
  • This known Flan unit consists of several parts, namely a stiff flange plate, a flexible Sealing plate and a likewise stiff clamping plate.
  • the flange plate, the sealing plate and the clamping plate are at their facing contact surfaces almost flat.
  • interspersed with one firmly connected to the clamping plate Bolts the sealing plate and the flange plate.
  • the heater is through the Slid through opening until the flange plate or the sealing plate on the Outside of the container wall rests.
  • the use of a Aufweit emotionss allows easy attachment the main body holding the heating unit in the container wall opening, by the main body by penetration of the Aufweit emotionss preferably in Circumferential direction is widened.
  • the main body can here, for example a sealing plate or a carrier unit, preferably on its outer peripheral side is provided with a sealing element. Because the fixation of the heater no longer by a squeezing but by penetration of the Aufweit emotionss done in the body, the individual components of the Heating device according to the invention, for mounting or dismounting the Heating device in the container wall opening can be used in comparison weaker and thus to the elements used in the prior art be executed cheaper.
  • the basic body can be different be designed or have different functions.
  • the main body by a carrier unit formed on its outer peripheral side with a preferably sprayed Sealing unit is provided.
  • the carrier unit can in addition to the Function of keeping the heater in the tank wall opening also still a function as a housing for receiving further components, such as connecting elements, Have control and / or regulating elements for the heating unit. This can be simplify the design of the heating unit, where appropriate, the carrier unit or the base body can be the basis for a modular system.
  • the sealing unit can be sprayed onto the carrier unit, as already has been set out. There is also the possibility that the sealing unit is one of the carrier unit is a separate element, which is pushed onto the carrier unit or raised.
  • the expansion body can have any shape.
  • the Aufweit emotions is designed as a truncated pyramid or pyramid or wedge.
  • the pyramid or wedge is symmetrical is formed to its or its central longitudinal axis. This is done widening evenly in the directions perpendicular to the central longitudinal axis.
  • the expander parallel to each other Surfaces, in particular Aufweit vom, and the body corresponding Counter surfaces, in particular obliquely to the expander body extending surfaces has, for example, form a funnel, which is opposite to the insertion direction of the expander opens.
  • the wedge has a shape of a preferably elongated hipped roof, preferably the respective facing wedge surfaces a sharp or blunt Include angle with each other.
  • This not only a widening of the Carrier unit perpendicular to the plane containing the two ends of the heating units contains, but the sections of the carrier unit in This level itself is pushed outward, so that at least approximately an all-round outward fixation of the heater is possible. Beyond that, the angles of the wedge surfaces depending on the sealing force and / or the Dichtweges determined so the latter can be controlled.
  • the wedge at least one fastener, for example in the form of a latching element, by means of which it is attached to the carrier unit preferably reversibly latched.
  • This locking element can, for example, a be resilient catch hook.
  • a reversible reib- or non-positive attachment or fixation possible is also advantageous.
  • theWemantician in particular the Wedge on its base an at least partially circumferential flange having. This flange limits the insertion movement of the heater in the Container wall opening.
  • the carrier unit can be configured as desired. It is however, particularly advantageous if the carrier unit for receiving the Aufweit stressess has at least one opening, for example in the form of a slot. If the opening is formed as a slot, this can preferably in one of Symmetrieebenen run the carrier unit. This will be a uniform Widening of the carrier unit, preferably in the directions perpendicular to the Symmetry plane.
  • the slot of the carrier unit at least has a counter-latching element, which is for locking the wedge in the slot cooperates in conjunction with the locking element of the wedge.
  • the locking element for example, a latching hook, so in the slot of the carrier unit a corresponding opening or at least one undercut provided be.
  • the heating units have such Heaters often take the form of the letter "W". Because of this common it is also advantageous if the carrier unit two substantially mutually parallel pipe sections for Recording the free ends of the heating unit and one between the pipe sections arranged and connected to these pipe sections fixing having, for fixing the carrier unit in the container wall opening with the Expander body or the wedge cooperates. To an all-around fixation to allow, it is also advantageous if the fixing body preferably has in its plane of symmetry the slot for receiving the wedge.
  • the fixing body via at least one web is connected to a pipe section, wherein the width of a web measured in Direction of the axis of the pipe sections, smaller than the longitudinal extent of the Fixier stresses in this direction, preferably much smaller, and wherein the Webs preferably at the heating unit facing end of the fixing are provided between this and the pipe sections.
  • the bars as Predetermined breaking points formed when fixing the carrier unit in the container wall opening tearing through the wedge, on the one hand ensures that the carrier unit can be handled as a unit before mounting the heater.
  • the assembly by separating the webs of the Pipe sections and / or the fixing a for the in the container wall opening securely clamped heater achieves necessary strength, since the pipe sections now also be pushed outward.
  • the carrier unit at their the Insertion in the container wall opening opposite side at least one has sections projecting overhang or stop. This Overhang limits the movement of the heater into the container.
  • the base body formed by a Flan unit, which a flange plate, a sealing plate, a clamping plate and a clamping unit contains.
  • a Flan unit which a flange plate, a sealing plate, a clamping plate and a clamping unit contains.
  • the invention to be widened component and a clamping unit is the sealing plate, the by means of the penetrating body in it when tightening the heater is widened.
  • the expander can be frustoconical and / or truncated pyramidal be educated.
  • Heating units usually have the shape of the letter "W" own the Container wall openings a slot-like or oval shape. That's why it's special advantageous if the Aufweitissonenia a combination of a truncated cone shape and a truncated pyramid shape.
  • the recess can be independent of the contour of the expander body or the clamping plate. However, it is particularly advantageous if the recess is at least approximately adapted to the contour of the clamping plate. It is particularly advantageous if the recess is frustoconical and / or is truncated pyramidal.
  • the flange plate on its outside have an at least partially circumferential collar, with which they are in Mounting position of the heater supported on the outside of the container wall.
  • a particularly good sealing effect can be achieved if the sealing plate on its outer peripheral side an at least partially encircling paragraph in which it is in the installation position of the heater on the outside of the Container wall rests.
  • the Clamping unit at least one clamping element, preferably a clamping screw has, which passes through the flange plate and the sealing plate and on the clamping plate is fixed and the inside a cavity for receiving a control and / or regulating device.
  • the flange plate, the sealing plate and the clamping plate each having an opening which are aligned with each other and for receiving a control and / or regulating device are provided.
  • Fig. 1 is partially in cross section a heater according to the invention according to a first embodiment 10, which is substantially from a base G in the form of a flange and a tubular heater H composed.
  • the heater 10 according to the invention result of a Modular system, so it is the main body G to the main body module G and the tubular heater H to the Schubaustein or the heating unit H of the modular system.
  • the tubular heater H includes one of a good heat conducting material, such as For example, aluminum-made first pipe section 12, the one in the has significant circular cross-section.
  • the pipe section 12 can also, a deviating from the circular cross section, such as for example, have an oval cross-section.
  • Inside this first pipe section 1 2 is essentially concentric with the tube axis one not further represented Schumannl arranged from an electrical resistance heating wire.
  • the heating coil, which does not extend to the front ends 12a, 12b of the first Pipe section 12 extends, is in an insulating material 14, preferably magnesium oxide, embedded, which compacted by, for example, a rolling process can be.
  • the main body G is designed as a flange 36 and has a second and third pipe section 16, 18, where the right and left frontal Pipe end 12a, 12b of the first pipe section 12 of the tubular heater H attached can be.
  • the two pipe sections 16, 18 also have a circular cross-section, as shown for example in FIGS. 1, 2 and 6, wherein the outer diameter of these two pipe sections 16, 18 larger is as the outer diameter of the tubular heater H.
  • the pipe sections 16, 18 but can also one, deviating from a circular cross-section Cross-section, such as having an oval cross-section.
  • the first Pipe section 12, the second pipe section 16 and the third pipe section 18th together form the jacket tube M of the tubular heater H.
  • Fig. 2 has the right, second pipe section 16 a continuous inner cavity 20, which is approximately concentric extends to the tube axis of the second pipe section 16 and the four sections 20a - 20d with different inner diameters, however always smaller than the outer diameter of the tubular heater H.
  • the first Section 20a of the inner cavity 20 extends from the one to the front End 12a of the tubular heater H facing end of the second pipe section 16 in the interior and goes over a chamfer in the second section 20b.
  • the inner diameter of the first section 20a larger than the inner diameter of the second portion 20b.
  • the third section 20c extending in a direction opposite to the front end 12a of the tubular heater H is also a conical taper, which merges into the fourth section 20d.
  • the inner diameter of the fourth Section 20d is the smallest.
  • Sections 20a-20d serve to receive a securing device 22, which may be provided, for example, in a drying cycle of the heater 10 (the heater 10 is in operation, although no surrounding Medium is present) to cause a shutdown of the heater 10 and the may be formed for example by a fuse.
  • This safety device 22 has a cartridge-shaped portion 22a and a lance-shaped Section 22b.
  • the cartridge-shaped portion 22a is in the sections 20a, 20b, 20c, while the lance-shaped portion 22b in the Section 20 d of the inner cavity 20 of the second pipe section 16 is arranged is.
  • the inner diameters of the portions 20b and 20d of the cavity 20 are on the outer diameter of the cartridge-shaped portion 22 a and the lance-shaped portion 22b of the securing device 22 in the manner matched, that the securing device 22 in these sections from the to front end 12a of the tubular heater H facing end of the second pipe section 16 can be inserted, but is held there afterwards.
  • suitable adhesive or other fastening means be provided in addition.
  • the inner diameter the portion 20a of the inner cavity 20 of the second pipe section 16 larger than the outer diameter of the cartridge-shaped portion 22 a of the securing device 22.
  • the lance-shaped portion 22b of the securing device projects over the flange side of the body G, which faces away from the heating element H. This Projection of the lance-shaped portion 22b may be for connection of the securing device 22 to a not shown, external power source serve.
  • the sleeve element, not shown, is used for power and / or heat conduction to or from the connecting bolt 24th
  • the terminal bolt 24 is received in the portion 20 a of the inner cavity 20 and stands out of the front end 12 a of the tubular heater H or of the first pipe section 12.
  • the connecting pin 24 is at its frustoconical End 24a connected to the heating coil not shown.
  • the connection pin 24 serves, as the name already says, to the connection of the Schuchtl to an external power source, this connection via the not further illustrated copper sleeve, the securing device 22 and the below explained in more detail at least one connection device 40 takes place.
  • Fig. 2 has the frontal, to the first pipe section 12 facing end of the second pipe section 16 a annular, to the heating element H open slot 26, whose middle Circular slit diameter in about the outer diameter of the first pipe section 12 of the tubular heater H corresponds.
  • the slot 26 is in the wall 16a of the second pipe section 16 attached. Through the slot 26 are opposite the inner bore 20 of the second pipe section 16 an axially extending Ring wall 28 formed in the assembly of the tubular heater H in the optionally not compressed at this point insulating material 14 in parallel penetrates to the connection pin 24.
  • This annular wall 28 thereby forms a first mechanical seal against ingress of moisture into the interior of the tubular heater H.
  • the width of the slot 26 and the width of the annular wall 28 can be dimensioned be that first pipe sections 12 with different outer diameters or different pipe wall thicknesses inserted into the second pipe section 16 can be. As a result, different to the main body G. dimensioned first pipe sections 12 are attached, whereby the realization the modular system according to the invention is further facilitated.
  • an adhesive is in the slot 26 introduced to the first pipe section 12 in the slot 26 to keep filling the gap and make a seal against the To form medium.
  • portion of the tubular heater H, in which the Connecting pin 24 sits is referred to as a cold end, because there is no heating coil can be found.
  • Fig. 6 the third pipe section 18 of the main body G is shown.
  • This pipe section 18 has an axial length which is smaller than the axial length of right, second pipe section 16, for receiving the securing device 22, not shown connecting sleeve and parts of the connecting bolt 24 serves.
  • a passage cavity 32nd provided for receiving a connecting bolt 34 for the left end of first tubular heating section 12 is used.
  • the terminal bolt 32 as having a uniform diameter over its entire length Rod trained. He is from a well the electric current Material, such as copper produced.
  • the two front ends of the Bar 34 extend vertically to the rod axis, but can at least in Area of the connection to the heating coil also be designed as a cone, such as this is the case with the connecting bolt 24. That of the first pipe section 12 technological end of the connecting bolt 34 is also like the lance-shaped Section 22b of the securing device 22, via the flange 36 of the body G over and can be connected to an electrical power source and the like serve. It should be noted that the inner diameter of the inner cavity 32 is also constant over its entire length and thus tolerated may be that the rod 34 optionally with the aid of a tool can be introduced, but then remains immobile in place.
  • the third pipe section in particular with regard to the mounting possibilities for the front end 12b of the tubular heater H as well formed, as the second pipe section 16th
  • the pipe sections 16, 18 As well as the main body G is an integral unit and are preferably made of a temperature-resistant, against electrical current insulating material produced.
  • a gasket 38 integrally mounted which is shown in more detail in FIGS. 2 and 6.
  • the seal 38 made of the same material is like the main body G.
  • it is from its own Material manufactured, but by way of a spraying process on the body G is mounted in such a way that it is a one-piece unit with the main body G forms.
  • the seal 38 may be flexible, at least deformable, at the onset of the heating device 10 according to the invention in a mounting hole a receiving the medium to be heated container for building a Seal to be deformed.
  • connection devices 40 are provided, on the one hand from terminal lugs 42 and the other from the lancet-like portion 22b and the Rod 34 are formed.
  • terminal lugs 42 stand the lance-like portion 22 b and the heating coil opposite end face End of the rod 34 on the main body G outward, exceed but not the length of the terminal lug 42.
  • the terminal lugs 42 are on the Main body G in axial alignment with the central longitudinal axis of the two pipe sections 16, 18 attached. It should also be noted that the terminal lugs 42 as well can be executed angled tabs.
  • the basic body G is on its outside provided with a contour in which the terminal lug 42 and the lance-like Section 22b are surrounded by guide elements 44 through depressions are formed in the body G and at the same time a non-positive Holder can form.
  • the recesses 44 may be in any directions run.
  • the assembly of the heating device 10 according to the invention is carried out in such a way that First, the base body G is produced in a suitable manufacturing process. Optionally, the inner cavities 20, 32 are reworked. Subsequently can the sealing device 38 on the oval peripheral side of the body G. be applied. Thereafter, the terminal lugs 42, as shown in Fig. 3rd is partially shown, and the securing device 22 used, wherein the Terminal lugs 42 from the outside of the body G, based on the zu heating medium, and the securing device 22 from the inside be used. The now also prepared first pipe section 12 is then with its two front ends 12a, 12b in the pipe sections 16, 18 inserted.
  • the second embodiment shown in FIGS. 8 to 14 of the invention ⁇ en Heating device consists essentially of a heating unit H, a body in the form of a carrier unit T and a widening body in the form of a wedge K.
  • the heater is in a slot-like opening of a wall of a container B is used and is there by means of the support unit T and the wedge K in the kept as described below.
  • the container B for example be added to be heated wash water for a washing machine.
  • the heating unit H may for example be an electric tubular heater, the not fully illustrated here and, for example, the shape of the letter "W" may have. Of course, any other training the heating unit H imaginable.
  • plastic carrier unit T from a fixing body 110 and two provided on both sides of the front or longitudinal sides of the fixing body 110 pipe sections 112, 114, which are also made of plastic.
  • the fixation body 110 has, as is apparent in particular from FIGS. 10A and 11, the shape a rectangular parallelepiped. In its central longitudinal axis or in his Symmetrieebene M, the fixing body 110 is provided with a slot 116 which extends over its full length or width. In the slot 116 is the Widening of the support unit T of the wedge K introduced, as follows is explained in more detail.
  • the fixing body 110 has its mounting position in the heating unit H pioneering side two at an angle of at least approximately 90 ° to the plane of symmetry M of the fixing body 110 outwardly extending projections or stops or flanges 118, 120 (see Fig. 10A, 11), the extend its full width.
  • the supernatants 118, 120 arrive in the installation position of Heating device in contact with the outside of the container wall B and define thereby the installation depth of the heater and limit the insertion movement.
  • the fixing body 110 is at the two parallel to its plane of symmetry M or parallel to the slot 116 extending sides in pairs with openings 122, 124 provided with the below-explained in more detail locking elements of the wedge K interact.
  • the two pipe sections 112, 114 are except for differences due to their Oriented same orientation, so that below only the pipe section 112th is explained in more detail. However, it is basically to be noted that the two Pipe sections 112, 114 may be uneven.
  • the tube portion 112 is substantially cylindrical and has a through hole 125 through the connecting elements the heater shown in Fig. 8, unspecified Terminal can end, are passed.
  • a fuse unit not shown in the form of a Fuse and the like may be arranged with the heating unit H connected is.
  • the pipe section 112 at its to the heating unit H pointing end has a diameter extension 112a, which is for receiving the free end of the heating unit H is used.
  • the remaining pipe section 112 then forms an extension of the tube of the heating unit H.
  • Each tube section 112, 114 is, as shown in FIG. 10B, two Web pairs 127, 128 connected to the fixing body 110.
  • the two pairs of bridges 127, 128 are formed so that they are on both sides of the central longitudinal plane M or Symmetry plane of the fixing body 110 to the tube sections 112, 114 extend, so that the slot 116 continues up to the two pipe sections 112, 114.
  • the two webs 127, 128 of a web pair tear during assembly of the Heating device, in particular during insertion of the wedge K in the slot 116 from, so that the two pipe sections 112, 114 regardless of the fixing body 110th to be moved.
  • the two webs 127, 128 each Stegcrues sure that the carrier unit T before mounting the heater as Unit can be handled.
  • each pipe section 112, 114 at the to the Fixier Sciences 110 radially page a wedge surface 130, which with a corresponding Counterwedge surface of the wedge K interacts and a urge of the two Tube sections 112, 114 outwardly, that is away from the fixing body 110, allows.
  • Figs. 12 to 14 of the wedge K is shown, which is also preferably made of Plastic is made.
  • the wedge K has essentially the shape of an elongated, pointed hipped roofs.
  • the mutually facing wedge surfaces 132, 134 and 136, 138 each subtend an acute angle.
  • the wedge surfaces 132 to 138 do not extend to to the base of the wedge K, but go shortly before in parallel Surfaces 132a to 138a over.
  • the wedge K with two Flanges 140, 142 extending parallel to the longitudinal wedge surfaces 132, 134 provided, which are arranged at an angle of approximately 90 ° from the parallel to each other Surfaces 132a, 134a extend outward. Through the two flanges 140, 142 the insertion movement of the wedge K is limited in the slot 116.
  • the two longitudinal wedge surfaces 132, 134 each with a latching hook 144, 146 which, as is apparent from Fig. 12, arranged diagonally to each other are.
  • the latching hooks 144, 146 are resilient and arrive at Insertion of the wedge K in the slot 116 in engagement with the openings 122, 124th of the fixing body 110.
  • the wedge K is provided with two openings 148, 150, which are also arranged diagonally offset from one another, as shown in FIG. 12 is apparent. In these openings 148, 150 can latching elements on the Carrier unit T or provided in the fixing body 110 engage.
  • the carrier unit T is provided on its outside with a seal D, possibly centering the carrier unit T on the container wall opening.
  • the Seal D can be pushed either on the carrier unit T or on the Carrier unit T have been applied by means of an injection process. Likewise is possible that the seal D glued, vulcanized or mechanically attached becomes.
  • the carrier unit T With the pipe sections 112, 114 on the two tail pipes of the heating unit H pushed, the pipe sections 112, 114 already with more Components inside them, such as control and / or fuse elements, connecting elements etc. may be provided.
  • the heater introduced into the opening of the container wall B in such a way that the supernatants 118, 120, 126 of the fixing body 110 or of the two pipe sections 112, 114 the outside of the container wall B abut.
  • the wedge K is then inserted into the slot 116, so that the fixing body 110 is perpendicular to the insertion direction or in the circumferential direction of the fixing body 110 is continuously widened.
  • Fig. 17 is a fourth embodiment of the heating device according to the invention shown essentially a likewise W-shaped heating unit H in the form of a electric tubular heater, a Flanheitheit F and a clamping unit S. having.
  • the heater is inserted in a slot-like opening of a wall of a container B, which in turn receives a washing water to be heated for a washing machine.
  • the Flanheitheit F has a metallic flange plate 210, but also from Plastic can be made, a sealing plate 220 made of a flexible sealing material and a metallic clamping plate 230, which is also made of plastic can be made.
  • the flange plate 210 has one to the shape of Wall opening corresponding shape, but the dimension of the flange plate 210 are larger than the wall opening.
  • On its outer peripheral side is the flange plate 210 provided with a preferably circumferential collar 212, the substantially at an angle of 90 ° to the plane of the flange plate 210 in the way is angled that he is in installation position of the heater to the Outside of the container wall B is supported. As can be seen from FIG.
  • the flange plate 210 has first and second through-holes 214, 216 which are symmetrical to the plane of the flange plate 210 cutting symmetry axis of the flange plate 210 are arranged.
  • the Through-passages 214, 216 are the two free ends of the heating unit H passed through to the outside. These sections, also referred to as cold ends the heating unit H serve to connect the heating unit H to a not further illustrated power source.
  • the flange plate 210 is centered with a through-hole 218 whose central longitudinal axis with the axis of symmetry of the flange plate 210 coincides and that of the below explained in more detail clamping unit S is interspersed.
  • the sealing plate 220 on the side facing the container interior of the flange plate 210 is present and possibly the Flanheitheit F in the container wall opening centered, one has the shape of the opening in the container wall B geometrically similar on. In used in the wall opening, but not strained state the heater is the sealing plate 220 with its outer contour on the inner surface the outwardly bent edge of the wall opening. It stands out Sealing plate 220 on the one hand slightly above the bent edge of the wall opening to the outside and on the other hand clearly on the inside of the container wall B over.
  • the sealing plate 220 has an in essentially corresponding to the shape of the wall opening, slot-like recess 222, which has a bottom 222a and sidewalls 222b.
  • the Floor 222a extends substantially parallel to the sealing plate 220 or flange plate 210.
  • the side walls 222b are formed to be inclined extend to the bottom 222a to the outside and thus form conical surfaces. In principle, the side walls 222b can also be parallel to the longitudinal axes of the Pipe sections of the heating unit run.
  • the flange plate 210 has the sealing plate 220 openings 224, 226, 228 for the implementation of cold ends of heating unit H and clamping unit S.
  • the clamping plate 230 also has an outer contour geometrically similar to the Shape of the opening in the container wall B. Furthermore, the clamping plate 230 as Cup formed with in the direction of the container interior angled Napand 232.
  • the cup edge 232 has first and second portions 232a, 232b on.
  • the first portion 232a extends from the substantially parallel to the Sealing plate 220 and the flange plate 210 extending bottom 232c of the cup-shaped Clamping plate 230 with the formation of conical surfaces obliquely outwards, preferably at an angle which is identical to the angle with which the Side walls 222b extend obliquely outward, or at least similar to this angle is.
  • the second section 232b of the cup edge 232 closes directly to the first portion 232 a and extends substantially in an angle of 90 ° to the bottom 232c of the cup or the plane of the clamping plate 230th
  • the bottom 232c of the cup 232 has such a surface area, that he is in the unstressed state with his towards the cold ends of the Heater H facing side straight at the outer edge of the recess 222 of the sealing plate 220 is applied.
  • the clamping plate 230 openings 234, 236, 238 for the implementation of the cold ends of Heating unit H and clamping unit S.
  • the smooth openings 218, 228 of the flange plate 210 and the sealing plate 220 for the clamping unit S is the opening 238 of the clamping plate 220 with an unspecified Threaded.
  • another solution for the Clamping unit S be provided, for example, instead of the thread a Mother to be used.
  • the clamping unit S consists in the embodiment shown a tightening screw 240 with a head 240a.
  • the clamping screw 240 passes through the openings 218, 228 and engages the internal thread the opening 238.
  • the Heater with pre-assembled flange unit F, heating unit H and clamping unit S inserted into the opening so that the heating unit H in the interior of the container B sticks out. Subsequently, the clamping screw 240 of the clamping unit S is tightened. Since the flange plate 210 or possibly the sealing plate 220 on the outside of the Container wall is supported by the engagement of the clamping screw 240 with the Internal thread of the opening 238, the clamping plate 230 in the direction of the inner wall the container B pulled. The clamping plate 230 enters with its first edge portion 232 a in the recess 222 of the sealing plate 220 a.
  • the first edge section 232a urges the sidewalls as the tensioning process progresses 222b of the sealing plate 230 to the outside and against the inner wall of the wall opening of the container B. Thereafter, as can be seen from Fig. 18, the Bottom 222 a of the sealing plate 220 compressed, causing the section of the Sealing plate 220 in the transition from bottom 222a and side wall 222b in the gap between the bent edge of the wall opening of the container B and the Flange plate 210 occurs. Furthermore, in the direction of the container interior pointing edge of the recess 222 by the wedge-shaped side wall 222b after crowded outside and settles around the edge between container wall B and bent over Edge of the wall opening, as is also apparent from Fig. 18.
  • Section a shows a tightening force linear sealing on the container
  • Section b is a tightening force parabolic sealing at the conical surfaces the sealing plate 220 and the clamping plate 230 reproduces.
  • Section c lies in the Section c a tightening force parabolic sealing at the conical surfaces the sealing plate 220 and the clamping plate 230 and the container as a reserve. If the sealing plate 220 has no conical surfaces, eliminates the Section b.
  • FIGS. 20 and 21 show a fifth exemplary embodiment of the invention, that of the fourth embodiment in the embodiment of the sealing plate 220 'makes a difference.
  • the sealing plate 220 'in this case has on its outer peripheral side a paragraph 224, with which they on the outside of the container wall B rests.
  • the opening of the container wall B is here also with a bent Edge provided, however, in contrast to the fourth embodiment has in the direction of the interior of the container according to FIGS. 17 and 18.
  • Fig. 21 is the clamped state of the heater according to the invention accordingly shown in this embodiment.
  • Fig. 22 is a sixth embodiment of the heating device according to the invention reproduced, which is essentially the fifth embodiment corresponds, but wherein the clamping unit S 'has been changed to that effect is that the clamping screw 240 of the clamping unit S 'in its interior a cavity in which a control and / or regulating element is inserted.
  • This may be, for example, an NTC or PTC element or a Act fuse.
  • Figs. 23 and 24 is a seventh embodiment of the invention in which the flange plate 210 ', the sealing plate 220 and the Clamping plate 230 'each have a further opening 219, 226, 236, in turn, by the housing for a control and / or regulating element or Control and / or regulating element itself is inserted.

Landscapes

  • Resistance Heating (AREA)
  • Electric Stoves And Ranges (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Claims (8)

  1. Dispositif de chauffage pour chauffer des fluides, comprenant au moins une unité de chauffage (H) présentant au moins un élément chauffant qui est disposé à l'intérieur d'un tube enveloppe (M), ledit tube enveloppe (M) comportant un premier et au moins un deuxième tronçon de tube (12, 16), caractérisé en ce que le premier tronçon de tube (12) et le deuxième tronçon de tube (16), au nombre d'au moins un, sont réalisés à partir de matériaux différents.
  2. Dispositif de chauffage selon la revendication 1, caractérisé en ce que le premier tronçon de tube (12) présente une longueur axiale qui est inférieure à celle de l'élément chauffant, au nombre d'au moins un.
  3. Dispositif de chauffage selon la revendication 1, caractérisé en ce que le premier tronçon de tube (12) présente une longueur axiale qui est égale ou supérieure à celle de l'élément chauffant, au nombre d'au moins un.
  4. Dispositif de chauffage selon une des revendications 1 à 3, caractérisé en ce que le deuxième tronçon de tube (16), au nombre d'au moins un, est relié à un corps de base (G; T; T'; F; F') qui porte le dispositif de chauffage (10) et peut être monté sur un récipient contenant le fluide à chauffer.
  5. Dispositif de chauffage selon la revendication 4, caractérisé en ce que pour fixer le dispositif de chauffage dans l'ouverture de paroi du récipient, le corps de base (T; T'; F; F') peut être élargi au moins par endroits par au moins un élément élargisseur (K; 230; 230') qui pénètre au moins en partie dans le corps de base (T; T'; F; F') lors du serrage.
  6. Dispositif de chauffage selon la revendication 5, caractérisé en ce que l'élément élargisseur est un coin (K).
  7. Dispositif de chauffage selon la revendication 4, caractérisé en ce que le corps de base est une unité à flasque (F), comprenant de préférence une plaque formant flasque (210; 210'), une plaque d'étanchéité (220; 220'; 220"), une plaque de serrage (230; 230') et une unité de serrage (S; S').
  8. Dispositif de chauffage selon la revendication 7, caractérisé en ce que l'élément élargisseur (232) est prévu sur la face de la plaque de serrage (230; 230') qui est tournée vers l'unité de chauffage (H).
EP00127565A 1999-12-15 2000-12-15 Dispositif de chauffage possédant une enveloppe tubulaire divisée Expired - Lifetime EP1111962B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19960585 1999-12-15
DE19960585A DE19960585A1 (de) 1999-12-15 1999-12-15 Heizvorrichtung mit unterteiltem Mantelrohr

Publications (3)

Publication Number Publication Date
EP1111962A2 EP1111962A2 (fr) 2001-06-27
EP1111962A3 EP1111962A3 (fr) 2002-11-06
EP1111962B1 true EP1111962B1 (fr) 2005-09-28

Family

ID=7932809

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00127565A Expired - Lifetime EP1111962B1 (fr) 1999-12-15 2000-12-15 Dispositif de chauffage possédant une enveloppe tubulaire divisée

Country Status (3)

Country Link
EP (1) EP1111962B1 (fr)
AT (1) ATE305716T1 (fr)
DE (2) DE19960585A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057812A1 (de) * 2004-11-30 2006-06-01 Bleckmann Gmbh & Co. Kg Einvulkanisiertes Spannstück

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006005321B3 (de) * 2006-02-06 2007-09-20 Bleckmann Gmbh & Co. Kg Schnappflansch
FR2963531B1 (fr) * 2010-07-29 2014-03-21 Vernet Cartouche chauffante et element thermostatique comportant une telle cartouche
FR2963530A1 (fr) * 2010-07-29 2012-02-03 Vernet Cartouche chauffante pour un element thermostatique et vanne thermostatique comportant une telle cartouche
EP3125645A1 (fr) * 2015-07-31 2017-02-01 Bleckmann GmbH & Co. KG Ensemble bride pour fixer un dispositif de chauffage à un récipient de fluide

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1264180B (de) * 1966-01-15 1968-03-21 E G O Elektro Geraete Blanc Befestigungsvorrichtung fuer einen Rohrheizkoerper in einer Behaelterwandoeffnung
DE6812026U (de) * 1967-12-28 1969-10-02 Elpag Ag Chur Elektrischer heizeinsatz
US3934116A (en) * 1973-12-26 1976-01-20 Emerson Electric Co. Electric heater assemblies
CH607531A5 (fr) * 1975-05-12 1978-12-29 Elpag Ag Chur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057812A1 (de) * 2004-11-30 2006-06-01 Bleckmann Gmbh & Co. Kg Einvulkanisiertes Spannstück

Also Published As

Publication number Publication date
EP1111962A3 (fr) 2002-11-06
DE19960585A1 (de) 2001-06-21
EP1111962A2 (fr) 2001-06-27
ATE305716T1 (de) 2005-10-15
DE50011248D1 (de) 2006-02-09

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