EP2583035B1 - Heating unit - Google Patents

Heating unit Download PDF

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Publication number
EP2583035B1
EP2583035B1 EP11725377.3A EP11725377A EP2583035B1 EP 2583035 B1 EP2583035 B1 EP 2583035B1 EP 11725377 A EP11725377 A EP 11725377A EP 2583035 B1 EP2583035 B1 EP 2583035B1
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EP
European Patent Office
Prior art keywords
heating
container
unit according
heating unit
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.)
Not-in-force
Application number
EP11725377.3A
Other languages
German (de)
French (fr)
Other versions
EP2583035A2 (en
Inventor
Michael Gruber
Gebhard Mayer
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.)
BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL11725377T priority Critical patent/PL2583035T3/en
Publication of EP2583035A2 publication Critical patent/EP2583035A2/en
Application granted granted Critical
Publication of EP2583035B1 publication Critical patent/EP2583035B1/en
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    • 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
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/82—Fixedly-mounted immersion heaters
    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • F24H1/102—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance
    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • F24H1/102—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance
    • F24H1/103—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance with bare resistances in direct contact with the fluid
    • 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
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/08—Electric heater

Definitions

  • the present invention relates to a heating block, in particular for an electric water heater, according to the preamble of claim 1, wherein the heating block has a housing in which meandering heating channels are designed for defining a heating path for a fluid, and heating elements for heating the flowing through the heating channels Having fluids.
  • a heating block is for example in the German patent DE 102 21 026 B4 shown.
  • This has a three-part housing, which is formed by a base body and two lids.
  • parallel heating channels are formed, the front side emerge on opposite side surfaces of the body.
  • the heating channels can be closed by means of the covers, in which a multiplicity of deflection regions are arranged for establishing a fluid connection between the respectively adjacent heating channels.
  • a shell-like, elongated retaining element is provided in each case, in which the heating elements are respectively clamped end.
  • a disadvantage of this heating block are in particular the high number of parts due to the large number of holding elements and the complex assembly, since each heating element is introduced individually into a heating channel.
  • the heating elements are not guided around the deflection, so that a corresponding number of electrical contacts must be provided and the wiring is correspondingly expensive.
  • the housing consists of two half-shells.
  • the half shells separate the housing in a plane spanned by its longitudinal axis and transverse axis and each have a peripheral portion of the Heating channels and their deflection on.
  • the heating elements can be inserted from above into the heating channels, which greatly simplifies the assembly effort compared to the above-described heating block.
  • the heating elements can be guided around the deflecting regions, so that only a reduced number of electrical contacts is necessary in comparison to the above-described solutions.
  • the half-shells are materially connected to each other, but in particular the welding of the housing half-shells by means of a friction welding process is relatively complicated and requires high furnishing and optimization work.
  • a heating block of an electric water heater according to the preamble of claim 1 is in the US 5,438,642 disclosed.
  • Object of the present invention is to provide a heating block, in particular for an electric water heater, which eliminates the aforementioned disadvantages and whose manufacturing and assembly costs is further reduced.
  • An inventive heating block in particular for an electrically heated instantaneous water heater, has a housing in which meandering heating channels are arranged for defining a heating path for a fluid.
  • the heating block has heating elements for heating the fluid flowing through the heating channels.
  • the housing is formed by a container having a lateral opening and by a lid for closing the opening, wherein the lid has projections on which the heating elements are arranged.
  • the solution according to the invention allows easy and time-saving assembly of the housing, since the heating elements are simultaneously introduced into the heating channels during positioning of the lid and thus when closing the housing, with a mispositioning in the heating channels and damage to the heating elements is not to be feared. Furthermore, the mounting of the heating block is facilitated by that this consists only of two housing parts, which can be made separately, for example in an injection molding process, and only have relatively small sealing surfaces. A joining of the housing parts can for example be done releasably via screws, so that a defective heating element can be replaced quickly. A complex cohesive connection based on a welding process, for example a friction welding process, or an adhesive process is not necessary to achieve a sufficient tightness due to the relatively small sealing surfaces. Furthermore, this solution is characterized by a very good accessibility to the heating elements, since they are automatically removed when opening the heating block from the heating channels.
  • the projections each represent an intermediate wall which is encompassed in a U-shape by the heating elements.
  • the intermediate walls can be inserted into one pocket of the container and subdivided into two heating channels.
  • each two heating channels can be operated via a heating element, wherein at the same time in the deflection of a Walkerettinablie is arranged.
  • the number of necessary electrical contacts for the power supply of the heating elements is correspondingly reduced.
  • the pockets of the container are formed by partitions, each extending from the bottom of the container towards the aperture so as to prevent cross flows between the individual heating channels.
  • the partitions are set back from the opening, so that the cover-side deflecting areas protrude at least in sections into the container.
  • the heating block is particularly compact executable when the partitions and the intermediate walls are arranged alternately adjacent to each other in the assembled state, so that the heating channels run directly next to each other.
  • the mounting of the heating block is further simplified since the pockets each have at least one longitudinal guide for insertion of the respective intermediate wall for producing a sliding engagement between the container and the lid. In this way, also a certain lateral spacing of the heating elements of the separating walls, intermediate walls and other walls bounding the heating channels can be achieved, so that the heating elements can be completely surrounded by the fluid to be heated.
  • the longitudinal guides are designed such that transverse flows between the heating channels are prevented along the guided partition walls.
  • the nozzles are preferably positioned on housing sections remote from electrical contacts. This is achieved in one embodiment in that the cover has the electrical contacts for power supply and the container has the inlet and outlet ports. In this case, the greatest possible distance between the contacts and the nozzle is achieved when the nozzles are arranged in a remote from the lid near the bottom of the container.
  • the compactness of the heating block can be further improved if the flow channel and the outlet channel are formed in edge regions of the container and flank the outer heating channels laterally.
  • the compactness of the heating block can be improved if the electrical contact elements are designed as contact pins, which extend transversely to the heating elements or to the housing longitudinal axis, so that a space-saving installation of power electronics on the contact pin is possible.
  • the present invention is particularly useful for providing a compact heater block for an instantaneous electric heater that is quick and easy to manufacture and allows easy replacement of a defective heater.
  • Fig. 1 has a heating block 1, in particular an electric water heater, a plastic-based housing 2, which flows through a fluid to be heated 4, for example water, in the direction of arrow as shown from right to left and is formed by a container 6 and a lid 8.
  • a heating block 1 in particular an electric water heater
  • a plastic-based housing 2 which flows through a fluid to be heated 4, for example water, in the direction of arrow as shown from right to left and is formed by a container 6 and a lid 8.
  • each heating channel 10, 12, 14, 16 is formed, which extend in the longitudinal direction x of the housing 4.
  • the heating channels 10, 12, 14, 16 define a heating path for heating the fluid 4 and are connected to each other via a respective end-side deflection region 18, 20, 22, which are formed alternately in the container 6 and the lid 8.
  • the two outer heating channels 10, 16 are laterally flanked by a flow channel 24 and a trailing channel 26, which are each in fluid communication with an inlet port 28 and outlet port 30 remote from the cover 8 and via a respective cover-side deflection region 32, 34 with the each adjacent outer heating channel 10, 16 are connected.
  • the heating block 1 has two helical metallic heating elements 36, 38, each having three Bankenned Lese 40, 42, 44, of which two in the Heating channels 10, 12 or 14, 16 and one in which the respective heating channels 10, 12 and 14, 16 connecting deflection region 18 and 22 is arranged.
  • the container 6 has an interior space 46 defined by a top wall 48, a bottom side wall 50, a left side wall 52, a right side wall 54, and a bottom wall 58 remote from a side opening 56.
  • the container 6 has a rectangular cross section, wherein the left and right side walls 52, 54 are formed as narrow sides and the upper side wall 48 is set back in the longitudinal direction x with respect to the lower side wall 50.
  • the opening 56 is enclosed by a closure surface 60, which is employed according to the shortening of the upper side wall 48 with respect to the lower side wall 50 obliquely to the vertical axis z of the container 6 and the heating block 1.
  • the interior 46 has two longitudinally extending x pockets 62, 64, which are bounded by three partitions 66, 68, 70.
  • the partitions 66, 68, 70 extend from the bottom wall 58 in the direction of the opening 56 and are slightly set back from this.
  • the two outer partitions 66, 70 delimit each with the left side wall 52 and the right side wall 54, the flow channel 24 and the trailing channel 26.
  • To guide the cover 8 during assembly of the heating block 1 is centered in the pockets 62, 64 in the area the upper and lower side walls 48, 50 each provided as a guide longitudinal groove 72, 74 are provided.
  • the inlet port 28 and the outlet port 30 pass through the upper side wall 48 and are positioned near the bottom wall 58.
  • the lid 8 has a base body 76, in which a in the assembled state the interior 46 of the container 6 facing cavity 78 is formed and of a complementary to the closure surface 60 formed obliquely to the vertical axis z of the lid 8 and the heating block 1 hired sealing surface 80 embraced is.
  • the main body 76 has two intermediate walls 82, 84, on which the heating elements 36, 38 are arranged, and which protrude parallel to each other from the cavity 78.
  • the intermediate walls 82, 84 have such an extent in the longitudinal direction x that these with the longitudinal grooves 72, 74 can be brought into sliding engagement and transverse flows between adjacent heating channels 10, 12, 14, 16 are prevented. They have a multiplicity of pairs of webs 85, 87 arranged one behind the other in the longitudinal direction x, which constitute a position assurance for the heating elements 36, 38 during operation and during assembly.
  • the heating elements 36, 38 are arranged between the pair of webs 85, 87 and U-shaped are guided around the intermediate walls 82, 84, so that two of their sections 40, 44 parallel to each other and thus in the longitudinal direction of the heating channels 10, 12, 14, 16 extend and the portion 42, which connects the two parallel portions 40, 44 with each other, quasi in the longitudinal direction of the deflection regions 18, 22 extends. They are at the ends with a metallic contact 86, 88, 90, 92 in electrical connection, which are arranged on a cavity surface 94. The contacts 86, 88, 90, 92 are through the lid 8 through in to Fig.
  • electrical contact pins 96, 98, 100, 102 for example, for receiving a power electronics, not shown, which extend perpendicularly from an outer surface 104 of the lid 8 in the direction of the vertical axis z and in the transverse direction y of the lid 8 and the heating block 1 side by side are arranged.
  • the container 6 and the lid 8 are made of plastic, for example in an injection molding process.
  • the electrical contacts 86, 88, 90, 92 and contact pins 96, 98, 100, 102 are arranged in the injection molding tool that they are integrated directly in the lid 8 during injection molding and a subsequent arrangement is eliminated.
  • the lid 8 as in FIG.
  • the pockets 62, 64 are subdivided into the heating channels 10, 12, 14, 16 by insertion of the intermediate walls 82, 84, wherein a heating element section 40 is provided in each case in a heating channel 10, 12, 14, 16 and in a container-side deflection region 18, 22 , 42, 44 of the heating elements 36, 38 is arranged.
  • the closing of the opening 58 or the Securing the cover 8 to the container 6 is preferably carried out releasably by screws, but can also be done by means of a welding or gluing process.
  • heating elements 36, 38 and their electrical contacts 96, 98, 100, 102 are of course further required for the operation of the heating block 1 elements such as sieve, flow sensor, temperature sensors and drgl.
  • On the housing 2 can be arranged or integrated into this.
  • a heating block for an electrically heated water heater comprising a housing in which meandering arranged heating channels for defining a heating path for a fluid, and with heating elements for heating the fluid flowing through the heating channels, wherein the housing of a container with a lateral Opening and is formed by a lid for closing the opening, wherein the lid has projections along which the heating elements extend.
  • the heating block can be used for electrical instantaneous water heaters to provide hot water. These electric instantaneous water heaters can be used in kitchens, bathrooms or lavatories for homes or commercial premises, so that a user can be supplied with hot water.

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  • 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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Description

Die vorliegende Erfindung betrifft einen Heizblock, insbesondere für einen elektrischen Durchlauferhitzer, nach dem Oberbegriff des Patentanspruchs 1, wobei der Heizblock ein Gehäuse hat, in dem mäanderartige Heizkanäle zur Definierung einer Heizstrecke für ein Fluid ausgebildet sind, sowie Heizelemente zum Erhitzen des durch die Heizkanäle strömenden Fluids aufweist.The present invention relates to a heating block, in particular for an electric water heater, according to the preamble of claim 1, wherein the heating block has a housing in which meandering heating channels are designed for defining a heating path for a fluid, and heating elements for heating the flowing through the heating channels Having fluids.

Ein Heizblock ist z.B. in dem deutschen Patent DE 102 21 026 B4 gezeigt. Dieser hat ein dreiteiliges Gehäuse, das von einem Grundkörper und zwei Deckeln gebildet wird. In dem Grundkörper sind parallele Heizkanäle ausgebildet, die an entgegengesetzten Seitenflächen stirnseitig aus dem Grundkörper heraustreten. Die Heizkanäle sind über die Deckel verschließbar, in denen eine Vielzahl von Umlenkbereichen zur Herstellung einer Fluidverbindung zwischen den jeweils benachbarten Heizkanälen angeordnet ist. Zum Einführen der Heizelemente in die Heizkanäle ist jeweils ein schalenartiges, längliches Halteelement vorgesehen, in das die Heizelemente endseitig jeweils eingespannt werden. Nachteilig an diesem Heizblock sind insbesondere die hohe Teileanzahl aufgrund der Vielzahl von Halteelementen und die aufwendige Montage, da jedes Heizelement einzeln in einen Heizkanal eingeführt wird. Ferner werden bei dieser Lösung die Heizelemente nicht um die Umlenkbereiche herumgeführt, so dass entsprechend viele elektrische Kontakte vorgesehen sein müssen und die Verdrahtung entsprechend aufwendig ist. <A heating block is for example in the German patent DE 102 21 026 B4 shown. This has a three-part housing, which is formed by a base body and two lids. In the main body parallel heating channels are formed, the front side emerge on opposite side surfaces of the body. The heating channels can be closed by means of the covers, in which a multiplicity of deflection regions are arranged for establishing a fluid connection between the respectively adjacent heating channels. For introducing the heating elements in the heating channels, a shell-like, elongated retaining element is provided in each case, in which the heating elements are respectively clamped end. A disadvantage of this heating block are in particular the high number of parts due to the large number of holding elements and the complex assembly, since each heating element is introduced individually into a heating channel. Furthermore, in this solution, the heating elements are not guided around the deflection, so that a corresponding number of electrical contacts must be provided and the wiring is correspondingly expensive. <

Zur Erhöhung der Kompaktheit eines Heizblocks mit einem derartigen dreiteiligen Gehäuse wird in dem deutschen Gebrauchsmuster DE 201 08 117 U1 vorgeschlagen, die Umlenkbereiche abschnittsweise in den Grundkörper zu integrieren.To increase the compactness of a heating block with such a three-part housing is in the German utility model DE 201 08 117 U1 proposed to integrate the deflection sections in sections in the body.

In dem deutschen Patent DE 196 51 087 C2 der Anmelderin wird ein Heizblock für einen elektrischen Durchlauferhitzer vorgeschlagen, dessen Gehäuse aus zwei Halbschalen besteht. Die Halbschalen trennen das Gehäuse in einer von seiner Längsachse und Querachse aufgespannten Ebene und weisen jeweils einen Umfangsabschnitt der Heizkanäle und deren Umlenkbereiche auf. Hierdurch können die Heizelemente von oben in die Heizkanäle eingelegt werden, wodurch sich der Montageaufwand gegenüber dem vorbeschriebenen Heizblock stark vereinfacht. Insbesondere können die Heizelemente um die Umlenkbereiche herumgeführt werden, so dass gegenüber den vorbeschriebenen Lösungen nur eine reduzierte Anzahl von elektrischen Kontakten notwendig ist. Die Halbschalen werden stoffschlüssig miteinander verbunden, jedoch ist insbesondere das Verschweißen der Gehäusehalbschalen mittels eines Reibschweißverfahrens verhältnismäßig kompliziert und erfordert hohe Einrichtungs- und Optimierungsarbeiten.In the German patent DE 196 51 087 C2 the applicant is proposed a heating block for an electric water heater, the housing consists of two half-shells. The half shells separate the housing in a plane spanned by its longitudinal axis and transverse axis and each have a peripheral portion of the Heating channels and their deflection on. As a result, the heating elements can be inserted from above into the heating channels, which greatly simplifies the assembly effort compared to the above-described heating block. In particular, the heating elements can be guided around the deflecting regions, so that only a reduced number of electrical contacts is necessary in comparison to the above-described solutions. The half-shells are materially connected to each other, but in particular the welding of the housing half-shells by means of a friction welding process is relatively complicated and requires high furnishing and optimization work.

Ein Heizblock eines elektrischen Durchlauferhitzers gemäß dem Oberbegriff von Anspruch 1 ist in der US 5 438 642 offenbart.A heating block of an electric water heater according to the preamble of claim 1 is in the US 5,438,642 disclosed.

Aufgabe der vorliegenden Erfindung ist es, einen Heizblock, insbesondere für einen elektrischen Durchlauferhitzer, zu schaffen, der die vorgenannten Nachteile beseitigt und dessen Fertigungs- sowie Montageaufwand weiter reduziert ist.Object of the present invention is to provide a heating block, in particular for an electric water heater, which eliminates the aforementioned disadvantages and whose manufacturing and assembly costs is further reduced.

Diese Aufgabe wird gelöst durch einen Heizblock mit den Merkmalen des Patentanspruchs 1. Vorteilhafte Aus- und Weiterbildungen, welche einzeln oder in Kombination miteinander ersetzbar sind, sind Gegenstand der jeweils abhängigen Ansprüche.This object is achieved by a heating block with the features of claim 1. Advantageous embodiments and further developments, which are individually or in combination replaceable with each other, are the subject of the respective dependent claims.

Ein erfindungsgemäßer Heizblock, insbesondere für einen elektrisch beheizten Durchlauferhitzer, hat ein Gehäuse, in dem mäanderartig angeordnete Heizkanäle zur Definierung einer Heizstrecke für ein Fluid ausgebildet sind. Darüber hinaus weist der Heizblock Heizelemente zum Erhitzen des durch die Heizkanäle strömenden Fluids auf. Erfindungsgemäß ist das Gehäuse von einem Behälter mit einer seitlichen Öffnung und von einem Deckel zum Verschließen der Öffnung gebildet, wobei der Deckel Vorsprünge aufweist, an denen die Heizelemente angeordnet sind.An inventive heating block, in particular for an electrically heated instantaneous water heater, has a housing in which meandering heating channels are arranged for defining a heating path for a fluid. In addition, the heating block has heating elements for heating the fluid flowing through the heating channels. According to the invention, the housing is formed by a container having a lateral opening and by a lid for closing the opening, wherein the lid has projections on which the heating elements are arranged.

Die erfindungsgemäße Lösung erlaubt die einfache und zeitsparende Montage des Gehäuses, da die Heizelemente beim Positionieren des Deckels und somit beim Verschließen des Gehäuses gleichzeitig in die Heizkanäle eingeführt werden, wobei eine Fehlpositionierung in den Heizkanälen und eine Beschädigung der Heizelemente nicht zu befürchten ist. Des Weiteren ist die Montage des Heizblocks dadurch erleichtert, dass dieser lediglich aus zwei Gehäuseteilen besteht, die getrennt voneinander, beispielsweise in einem Spritzgussverfahren, hergestellt werden können und nur verhältnismäßig kleine Dichtflächen aufweisen. Eine Fügung der Gehäuseteile kann beispielsweise lösbar über Schrauben erfolgen, so dass ein defektes Heizelement schnell ausgetauscht werden kann. Eine aufwendige stoffschlüssige Verbindung basierend auf einem Schweißverfahren, bspw. einem Reibschweißverfahren, oder einem Klebeprozess ist zur Erzielung einer ausreichenden Dichtheit aufgrund der verhältnismäßig kleinen Dichtflächen nicht notwendig. Ferner zeichnet sich diese Lösung durch eine sehr gute Zugänglichkeit zu den Heizelementen aus, da diese beim Öffnen des Heizblocks automatisch aus den Heizkanälen entfernt werden.The solution according to the invention allows easy and time-saving assembly of the housing, since the heating elements are simultaneously introduced into the heating channels during positioning of the lid and thus when closing the housing, with a mispositioning in the heating channels and damage to the heating elements is not to be feared. Furthermore, the mounting of the heating block is facilitated by that this consists only of two housing parts, which can be made separately, for example in an injection molding process, and only have relatively small sealing surfaces. A joining of the housing parts can for example be done releasably via screws, so that a defective heating element can be replaced quickly. A complex cohesive connection based on a welding process, for example a friction welding process, or an adhesive process is not necessary to achieve a sufficient tightness due to the relatively small sealing surfaces. Furthermore, this solution is characterized by a very good accessibility to the heating elements, since they are automatically removed when opening the heating block from the heating channels.

Gemäß der Erfindung stellen die Vorsprünge jeweils eine Zwischenwand dar, die U-förmig von den Heizelementen umgriffen ist. Die Zwischenwände sind in jeweils eine Tasche des Behälters einführbar und unterteilt diese in zwei Heizkanäle. Hierdurch lassen sich jeweils zwei Heizkanäle über ein Heizelement bedienen, wobei gleichzeitig in deren Umlenkbereich ein Heizelementenabschnitt angeordnet ist. Entsprechend reduziert ist die Anzahl notwendiger elektrischer Kontakte zur Stromversorgung der Heizelemente.According to the invention, the projections each represent an intermediate wall which is encompassed in a U-shape by the heating elements. The intermediate walls can be inserted into one pocket of the container and subdivided into two heating channels. In this way, each two heating channels can be operated via a heating element, wherein at the same time in the deflection of a Heizelementenabschnitt is arranged. The number of necessary electrical contacts for the power supply of the heating elements is correspondingly reduced.

Zur Lagesicherung der Heizelemente an den Zwischenwänden weisen diese entsprechende Führungen auf.To secure the position of the heating elements on the intermediate walls, these have corresponding guides.

Bevorzugterweise sind die Taschen des Behälters von Trennwänden gebildet, die sich jeweils vom Boden des Behälters in Richtung der Öffnung erstrecken, so dass Querströmungen zwischen den einzelnen Heizkanälen verhindert werden.Preferably, the pockets of the container are formed by partitions, each extending from the bottom of the container towards the aperture so as to prevent cross flows between the individual heating channels.

Zur Erzielung einer kompakten Baugröße des Heizblocks sind bei einem Ausführungsbeispiel die Trennwände von der Öffnung zurückgesetzt, so dass die deckelseitigen Umlenkbereiche zumindest abschnittsweise in den Behälter ragen.In order to achieve a compact size of the heating block, in one exemplary embodiment, the partitions are set back from the opening, so that the cover-side deflecting areas protrude at least in sections into the container.

Der Heizblock ist besonders kompakt ausführbar, wenn die Trennwände und die Zwischenwände im montierten Zustand abwechselnd nebeneinander angeordnet sind, so dass die Heizkanäle unmittelbar nebeneinander verlaufen.The heating block is particularly compact executable when the partitions and the intermediate walls are arranged alternately adjacent to each other in the assembled state, so that the heating channels run directly next to each other.

Die Montage des Heizblocks ist weiter vereinfacht, da die Taschen jeweils zumindest eine Längsführung zum Einsetzen der jeweiligen Zwischenwand zur Herstellung eines Schiebeeingriffs zwischen dem Behälter und dem Deckel aufweisen. Hierdurch kann ebenfalls eine bestimmte seitliche Beabstandung der Heizelemente von den Trenn-, Zwischenwänden und sonstigen die Heizkanäle begrenzenden Wandungen erreicht werden, so dass die Heizelemente vollumfänglich von dem zu erwärmenden Fluid umströmt werden können.The mounting of the heating block is further simplified since the pockets each have at least one longitudinal guide for insertion of the respective intermediate wall for producing a sliding engagement between the container and the lid. In this way, also a certain lateral spacing of the heating elements of the separating walls, intermediate walls and other walls bounding the heating channels can be achieved, so that the heating elements can be completely surrounded by the fluid to be heated.

Vorteilhafterweise sind die Längsführungen derart ausgebildet, dass entlang der geführten Zwischenwände Querströmungen zwischen den Heizkanälen verhindert werden.Advantageously, the longitudinal guides are designed such that transverse flows between the heating channels are prevented along the guided partition walls.

Um zu verhindern, dass beim Austreten des Fluids im Bereich eines Einlassstutzens und eines Auslassstutzens, die mit einem gehäuseseitigen Vorlaufkanal bzw. einem Nachlaufkanal in Fluidverbindung stehen, ein elektrischer Kurzschluss entsteht, sind die Stutzen bevorzugterweise an von elektrischen Kontakten entfernt liegenden Gehäuseabschnitten positioniert. Dies wird bei einem Ausführungsbeispiel dadurch erreicht, dass der Deckel die elektrischen Kontakte zur Stromversorgung und der Behälter den Einlass- und Auslassstutzen aufweist. Dabei wird ein größtmöglicher Abstand zwischen den Kontakten und den Stutzen erreicht, wenn die Stutzen in einem von dem Deckel entfernt liegenden bodennahen Bereich des Behälters angeordnet sind.In order to prevent the occurrence of an electrical short circuit in the event of leakage of the fluid in the region of an inlet nozzle and an outlet nozzle, which are in fluid communication with a housing-side flow channel or a follow-up channel, the nozzles are preferably positioned on housing sections remote from electrical contacts. This is achieved in one embodiment in that the cover has the electrical contacts for power supply and the container has the inlet and outlet ports. In this case, the greatest possible distance between the contacts and the nozzle is achieved when the nozzles are arranged in a remote from the lid near the bottom of the container.

Die Kompaktheit des Heizblocks lässt sich weiter verbessern, wenn der Vorlaufkanal und der Nachlaufkanal in Randbereichen des Behälters ausgebildet sind und die äußeren Heizkanäle seitlich flankieren.The compactness of the heating block can be further improved if the flow channel and the outlet channel are formed in edge regions of the container and flank the outer heating channels laterally.

Darüber hinaus lässt sich die Kompaktheit des Heizblocks verbessern, wenn die elektrischen Kontaktelemente als Kontaktbolzen ausgebildet sind, die sich quer zu den Heizelementen bzw. zur Gehäuselängsachse erstrecken, so dass eine platzsparende Montage einer Leistungselektronik auf den Kontaktbolzen möglich ist.In addition, the compactness of the heating block can be improved if the electrical contact elements are designed as contact pins, which extend transversely to the heating elements or to the housing longitudinal axis, so that a space-saving installation of power electronics on the contact pin is possible.

Die vorliegende Erfindung eignet sich insbesondere zur Bereitstellung eines kompakten Heizblocks für einen elektrischen Durchlauferhitzer, der schnell und einfach herzustellen ist und einen einfachen Austausch eines defekten Heizelementes erlaubt.The present invention is particularly useful for providing a compact heater block for an instantaneous electric heater that is quick and easy to manufacture and allows easy replacement of a defective heater.

Sonstige vorteilhafte Ausführungsbeispiele der vorliegenden Erfindung sind Gegenstand weiterer Unteransprüche.Other advantageous embodiments of the present invention are the subject of further subclaims.

Im Folgenden wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand schematischer Darstellungen näher erläutert. Es zeigen:

Fig.
1 eine Phantomdarstellung eines Heizblocks,
Fig. 2
eine perspektivische Darstellung eines Gehäusebehälters des Heizblocks,
Fig. 3
eine Unteransicht eines Gehäusedeckels des Heizblocks,
Fig. 4
eine Draufsicht auf den Gehäusedeckel, und
Fig. 5
einen Montageschritt des Heizblocks.
In the following, a preferred embodiment of the invention is explained in more detail with reference to schematic representations. Show it:
FIG.
1 is a phantom view of a heating block,
Fig. 2
a perspective view of a housing container of the heating block,
Fig. 3
a bottom view of a housing cover of the heating block,
Fig. 4
a plan view of the housing cover, and
Fig. 5
a mounting step of the heating block.

Gemäß Fig. 1 hat ein Heizblock 1, insbesondere eines elektrischen Durchlauferhitzers, ein kunststoffbasiertes Gehäuse 2, das von einem zu erwärmenden Fluid 4, beispielsweise Wasser, in Pfeilrichtung gemäß der Darstellung von rechts nach links durchströmt und von einem Behälter 6 sowie einem Deckel 8 gebildet wird.According to Fig. 1 has a heating block 1, in particular an electric water heater, a plastic-based housing 2, which flows through a fluid to be heated 4, for example water, in the direction of arrow as shown from right to left and is formed by a container 6 and a lid 8.

In dem Behälter 6 sind beispielsweise vier parallele Heizkanäle 10, 12, 14, 16 ausgebildet, die sich in Längsrichtung x des Gehäuses 4 erstrecken. Die Heizkanäle 10, 12, 14, 16 definieren eine Heizstrecke zur Erwärmung des Fluids 4 und sind über jeweils einen endseitigen Umlenkbereich 18, 20, 22 miteinander verbunden, die abwechselnd in dem Behälter 6 und dem Deckel 8 ausgebildet sind. Die beiden äußeren Heizkanäle 10, 16 werden seitlich von einem Vorlaufkanal 24 bzw. einem Nachlaufkanal 26 flankiert, die jeweils mit einem von dem Deckel 8 entfernt liegenden Einlassstutzen 28 bzw. Auslassstutzen 30 in Fluidverbindung stehen und über jeweils einen deckelseitigen Umlenkbereich 32, 34 mit dem jeweils benachbarten äußeren Heizkanal 10, 16 verbunden sind.In the container 6, for example, four parallel heating channels 10, 12, 14, 16 are formed, which extend in the longitudinal direction x of the housing 4. The heating channels 10, 12, 14, 16 define a heating path for heating the fluid 4 and are connected to each other via a respective end-side deflection region 18, 20, 22, which are formed alternately in the container 6 and the lid 8. The two outer heating channels 10, 16 are laterally flanked by a flow channel 24 and a trailing channel 26, which are each in fluid communication with an inlet port 28 and outlet port 30 remote from the cover 8 and via a respective cover-side deflection region 32, 34 with the each adjacent outer heating channel 10, 16 are connected.

Der Heizblock 1 hat zwei wendelartige metallische Heizelemente 36, 38, die jeweils drei Heizelementenabschnitte 40, 42, 44 aufweisen, von denen jeweils zwei in den Heizkanälen 10, 12 bzw. 14, 16 sowie einer in dem die jeweilige Heizkanäle 10, 12 bzw. 14, 16 verbindenden Umlenkbereich 18 bzw. 22 angeordnet ist.The heating block 1 has two helical metallic heating elements 36, 38, each having three Heizelementenabschnitte 40, 42, 44, of which two in the Heating channels 10, 12 or 14, 16 and one in which the respective heating channels 10, 12 and 14, 16 connecting deflection region 18 and 22 is arranged.

Wie in Fig. 2 gezeigt, hat der Behälter 6 einen Innenraum 46, der von einer gemäß der Darstellung oberen Seitenwandung 48, einer unteren Seitenwandung 50, einer linken Seitenwandung 52, einer rechten Seitenwandung 54 sowie einer von einer seitlichen Öffnung 56 entfernt liegenden Bodenwandung 58 begrenzt wird. Der Behälter 6 hat einen rechteckigen Querschnitt, wobei die linke und rechte Seitenwandung 52, 54 als Schmalseiten ausgebildet sind und die obere Seitenwandung 48 in Längsrichtung x gegenüber der unteren Seitenwandung 50 zurückgesetzt ist. Die Öffnung 56 wird von einer Verschlussfläche 60 umschlossen, die entsprechend der Verkürzung der oberen Seitenwandung 48 gegenüber der unteren Seitenwandung 50 schräg zur Hochachse z des Behälters 6 bzw. des Heizblocks 1 angestellt ist.As in Fig. 2 6, the container 6 has an interior space 46 defined by a top wall 48, a bottom side wall 50, a left side wall 52, a right side wall 54, and a bottom wall 58 remote from a side opening 56. The container 6 has a rectangular cross section, wherein the left and right side walls 52, 54 are formed as narrow sides and the upper side wall 48 is set back in the longitudinal direction x with respect to the lower side wall 50. The opening 56 is enclosed by a closure surface 60, which is employed according to the shortening of the upper side wall 48 with respect to the lower side wall 50 obliquely to the vertical axis z of the container 6 and the heating block 1.

Der Innenraum 46 weist zwei sich in Längsrichtung x erstreckende Taschen 62, 64 auf, die von drei Trennwänden 66, 68, 70 begrenzt sind. Die Trennwände 66, 68, 70 erstrecken sich von der Bodenwandung 58 in Richtung der Öffnung 56 und sind von dieser etwas zurückgesetzt. Die beiden äußeren Trennwände 66, 70 begrenzen jeweils mit der linken Seitenwandung 52 bzw. der rechten Seitenwandung 54 den Vorlaufkanal 24 bzw. den Nachlaufkanal 26. Zur Führung des Deckels 8 bei der Montage des Heizblocks 1 ist mittig in den Taschen 62, 64 im Bereich der oberen und unteren Seitenwandung 48, 50 jeweils eine als Führung ausgebildete Längsnut 72, 74 vorgesehen. Der Einlassstutzen 28 sowie der Auslassstutzen 30 durchsetzen die obere Seitenwandung 48 und sind nahe der Bodenwandung 58 positioniert.The interior 46 has two longitudinally extending x pockets 62, 64, which are bounded by three partitions 66, 68, 70. The partitions 66, 68, 70 extend from the bottom wall 58 in the direction of the opening 56 and are slightly set back from this. The two outer partitions 66, 70 delimit each with the left side wall 52 and the right side wall 54, the flow channel 24 and the trailing channel 26. To guide the cover 8 during assembly of the heating block 1 is centered in the pockets 62, 64 in the area the upper and lower side walls 48, 50 each provided as a guide longitudinal groove 72, 74 are provided. The inlet port 28 and the outlet port 30 pass through the upper side wall 48 and are positioned near the bottom wall 58.

Gemäß der Darstellung in Fig. 3 hat der Deckel 8 einen Grundkörper 76, in dem ein im montierten Zustand dem Innenraum 46 des Behälters 6 zugewandter Hohlraum 78 ausgebildet ist und der von einer komplementär zur Verschlussfläche 60 ausgebildeten schräg zur Hochachse z des Deckels 8 bzw. des Heizblocks 1 angestellten Dichtfläche 80 umgriffen ist.As shown in Fig. 3 the lid 8 has a base body 76, in which a in the assembled state the interior 46 of the container 6 facing cavity 78 is formed and of a complementary to the closure surface 60 formed obliquely to the vertical axis z of the lid 8 and the heating block 1 hired sealing surface 80 embraced is.

Der Grundkörper 76 hat zwei Zwischenwände 82, 84, an denen die Heizelemente 36, 38 angeordnet sind, und die parallel zueinander aus dem Hohlraum 78 hinausragen. Die Zwischenwände 82, 84 haben eine derartige Erstreckung in Längsrichtung x, dass diese mit den Längsnuten 72, 74 in Schiebeeingriff bringbar sind und Querströmungen zwischen benachbarten Heizkanälen 10, 12, 14, 16 verhindert werden. Sie weisen eine Vielzahl von in Längsrichtung x hintereinander angeordneter Stegpaaren 85, 87 auf, die eine Lagesicherung für die Heizelemente 36, 38 im Betrieb und bei der Montage darstellen.The main body 76 has two intermediate walls 82, 84, on which the heating elements 36, 38 are arranged, and which protrude parallel to each other from the cavity 78. The intermediate walls 82, 84 have such an extent in the longitudinal direction x that these with the longitudinal grooves 72, 74 can be brought into sliding engagement and transverse flows between adjacent heating channels 10, 12, 14, 16 are prevented. They have a multiplicity of pairs of webs 85, 87 arranged one behind the other in the longitudinal direction x, which constitute a position assurance for the heating elements 36, 38 during operation and during assembly.

Die Heizelemente 36, 38 sind zwischen den Stegpaaren 85, 87 angeordnet und U-förmig um die Zwischenwände 82, 84 herumgeführt sind, so dass sich zwei ihrer Abschnitte 40, 44 parallel zueinander und somit in Längsrichtung der Heizkanäle 10, 12, 14, 16 erstrecken und der Abschnitt 42, der die beiden parallelen Abschnitte 40, 44 miteinander verbindet, quasi in Längsrichtung der Umlenkbereiche 18, 22 verläuft. Sie stehen endseitig mit jeweils einem metallischen Kontakt 86, 88, 90, 92 in elektrischer Verbindung, die an einer Hohlraumfläche 94 angeordnet sind. Die Kontakte 86, 88, 90, 92 sind durch den Deckel 8 hindurch zu in Fig. 4 gezeigten elektrischen Kontaktbolzen 96, 98, 100, 102, beispielsweise zur Aufnahme einer nicht gezeigten Leistungselektronik, geführt, die sich senkrecht von einer Außenfläche 104 des Deckels 8 in Richtung der Hochachse z erstrecken und in Querrichtung y des Deckels 8 bzw. des Heizblocks 1 nebeneinander angeordnet sind.The heating elements 36, 38 are arranged between the pair of webs 85, 87 and U-shaped are guided around the intermediate walls 82, 84, so that two of their sections 40, 44 parallel to each other and thus in the longitudinal direction of the heating channels 10, 12, 14, 16 extend and the portion 42, which connects the two parallel portions 40, 44 with each other, quasi in the longitudinal direction of the deflection regions 18, 22 extends. They are at the ends with a metallic contact 86, 88, 90, 92 in electrical connection, which are arranged on a cavity surface 94. The contacts 86, 88, 90, 92 are through the lid 8 through in to Fig. 4 shown electrical contact pins 96, 98, 100, 102, for example, for receiving a power electronics, not shown, which extend perpendicularly from an outer surface 104 of the lid 8 in the direction of the vertical axis z and in the transverse direction y of the lid 8 and the heating block 1 side by side are arranged.

Zur Herstellung des Heizblocks 1 werden der Behälter 6 und der Deckel 8 aus Kunststoff beispielsweise in einem Spritzgussverfahren hergestellt. Bevorzugterweise sind die elektrischen Kontakte 86, 88, 90, 92 und Kontaktbolzen 96, 98, 100, 102 derart im Spritzgusswerkzeug angeordnet, dass diese beim Spritzgießen unmittelbar in dem Deckel 8 eingebunden werden und eine nachträgliche Anordnung entfällt. Dann werden die Heizelemente 36, 38 zwischen den Stegpaaren 85, 87 an den Zwischenwänden 82, 84 angeordnet und endseitig mit den Kontakten 86, 88, 90, 92 elektrisch verschaltet. Abschließend wird der Deckel 8 wie in Figur 5 gezeigt mit seinen Zwischenwänden 82, 84 in die Längsnuten 72, 74 eingesetzt und in Richtung der Bodenwandung 58 verschoben, bis die Öffnung 56 durch ein Auflaufen der deckelseitigen Dichtfläche 80 auf die behälterseitige Verschlussfläche 60 verschlossen wird. Gleichzeitig werden durch das Einführen der Zwischenwände 82, 84 die Taschen 62, 64 in die Heizkanäle 10, 12, 14, 16 unterteilt, wobei in jeweils einem Heizkanal 10, 12, 14, 16 sowie in einem behälterseitigen Umlenkbereich 18, 22 ein Heizelementenabschnitt 40, 42, 44 der Heizelemente 36, 38 angeordnet wird. Das Verschließen der Öffnung 58 bzw. das Sichern des Deckels 8 an dem Behälter 6 erfolgt vorzugsweise lösbar über Schrauben, kann jedoch auch mittels eines Schweiß- oder Klebeverfahrens erfolgen.For the production of the heating block 1, the container 6 and the lid 8 are made of plastic, for example in an injection molding process. Preferably, the electrical contacts 86, 88, 90, 92 and contact pins 96, 98, 100, 102 are arranged in the injection molding tool that they are integrated directly in the lid 8 during injection molding and a subsequent arrangement is eliminated. Then, the heating elements 36, 38 between the pair of webs 85, 87 disposed on the intermediate walls 82, 84 and the end electrically connected to the contacts 86, 88, 90, 92. Finally, the lid 8 as in FIG. 5 shown with its intermediate walls 82, 84 inserted into the longitudinal grooves 72, 74 and displaced in the direction of the bottom wall 58 until the opening 56 is closed by an emergence of the cover-side sealing surface 80 on the container-side closure surface 60. At the same time, the pockets 62, 64 are subdivided into the heating channels 10, 12, 14, 16 by insertion of the intermediate walls 82, 84, wherein a heating element section 40 is provided in each case in a heating channel 10, 12, 14, 16 and in a container-side deflection region 18, 22 , 42, 44 of the heating elements 36, 38 is arranged. The closing of the opening 58 or the Securing the cover 8 to the container 6 is preferably carried out releasably by screws, but can also be done by means of a welding or gluing process.

Neben den Heizelementen 36, 38 und deren elektrischen Kontakten 96, 98, 100, 102 sind selbstverständlich weitere für den Betrieb des Heizblocks 1 erforderliche Elemente wie Sieb, Durchflusssensor, Temperatursensoren und drgl. an dem Gehäuse 2 anordbar bzw. in dieses integrierbar.In addition to the heating elements 36, 38 and their electrical contacts 96, 98, 100, 102 are of course further required for the operation of the heating block 1 elements such as sieve, flow sensor, temperature sensors and drgl. On the housing 2 can be arranged or integrated into this.

Offenbart ist ein Heizblock für einen elektrisch beheizten Durchlauferhitzer, mit einem Gehäuse, in dem mäanderartig angeordnete Heizkanäle zur Definierung einer Heizstrecke für ein Fluid ausgebildet sind, und mit Heizelementen zum Erhitzen des durch die Heizkanäle strömenden Fluids, wobei das Gehäuse von einem Behälter mit einer seitlichen Öffnung und von einem Deckel zum Verschließen der Öffnung gebildet ist, wobei der Deckel Vorsprünge aufweist, entlang denen sich die Heizelemente erstrecken.Disclosed is a heating block for an electrically heated water heater, comprising a housing in which meandering arranged heating channels for defining a heating path for a fluid, and with heating elements for heating the fluid flowing through the heating channels, wherein the housing of a container with a lateral Opening and is formed by a lid for closing the opening, wherein the lid has projections along which the heating elements extend.

Der Heizblock kann für elektrische Durchlauferhitzern zum Bereitstellen von Warmwasser verwendet werden. Diese elektrischen Durchlauferhitzer können in Küchen, Badezimmer oder Waschräumen für Privathaushalte oder gewerbliche Räume eingesetzt werden, so dass ein Benutzer mit Warmwasser versorgt werden kann.The heating block can be used for electrical instantaneous water heaters to provide hot water. These electric instantaneous water heaters can be used in kitchens, bathrooms or lavatories for homes or commercial premises, so that a user can be supplied with hot water.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Heizblockheating block
22
Gehäusecasing
44
Fluidfluid
66
Behältercontainer
88th
Deckelcover
1010
Heizkanalheating duct
1212
Heizkanalheating duct
1414
Heizkanalheating duct
1616
Heizkanalheating duct
1818
Umlenkbereichdeflection
2020
Umlenkbereichdeflection
2222
Umlenkbereichdeflection
2424
Vorlaufkanalforward channel
2626
Nachlaufkanalrunning channel
2828
Einlassstutzeninlet port
3030
Auslassstutzenoutlet
3232
Umlenkbereichdeflection
3434
Umlenkbereichdeflection
3636
Heizelementheating element
3838
Heizelementheating element
4040
Heizelementabschnittheating element
4242
Heizelementabschnittheating element
4444
Heizelementabschnittheating element
4646
Innenrauminner space
4848
obere Seitenwandungupper side wall
5050
untere Seitenwandunglower side wall
5252
linke Seitenwandungleft side wall
5454
rechte Seitenwandungright side wall
5656
Öffnungopening
5858
Bodenwandungbottom wall
6060
Verschlussflächeclosure surface
6262
Taschebag
6464
Taschebag
6666
Trennwandpartition wall
6868
Trennwandpartition wall
7070
Trennwandpartition wall
7272
Längsnutlongitudinal groove
7474
Längsnutlongitudinal groove
7676
Grundkörperbody
7878
Hohlraumcavity
8080
Dichtflächesealing surface
8282
Zwischenwandpartition
8484
Zwischenwandpartition
8585
Stegpaargutter pair
8686
KontaktContact
8787
Steg paarFootbridge couple
8888
KontaktContact
9090
KontaktContact
9292
KontaktContact
9494
Hohlraumflächecavity surface
9696
KontaktbolzenContact pin
9898
KontaktbolzenContact pin
100100
KontaktbolzenContact pin
102102
KontaktbolzenContact pin
104104
Außenflächeouter surface

Claims (10)

  1. Heating unit (1) for an electrically heated instantaneous water heater, having a housing (2) in which heating channels (10, 12, 14, 16) running in a meandering fashion are designed to define a heating section for a fluid (4), and having heating elements (36, 38) for heating the fluid (4) flowing through the heating channels, wherein the housing (2) is formed by a container (6) having a lateral opening (56) and by a cover (8) for closing the opening (56), wherein the cover (8) has projections (82, 84), along which the heating elements (36, 38) extend, wherein the projections (82, 84) are encompassed by the heating elements (36, 38) in a U-shape and represent intermediate walls (82, 84) which can be introduced respectively into a pocket (62, 64) of the container (6) and divide said pockets (62, 64) into the heating channels (10, 12, 14, 16), characterised in that the pockets (62, 64) each have at least one longitudinal guide (72, 74) for insertion of the respective intermediate wall (82, 84) for the production of a sliding engagement between the container (6) and the cover (8).
  2. Heating unit according to claim 1, wherein the intermediate walls (82, 84) have guides (85, 87) for securing the position of the heating elements (36, 38).
  3. Heating unit according to claim 1, wherein the pockets (62, 64) are formed by partition walls (66, 68, 70), each of which extends from a bottom wall (58) of the container (6) in the direction of the opening (56).
  4. Heating unit according to claim 3, wherein the partition walls (66, 68, 70) are set back from the opening (56).
  5. Heating unit according to claim 3 or 4, wherein in the mounted state the intermediate walls (82, 84) and the partition walls (66, 68, 70) are arranged alternately side by side.
  6. Heating unit according to claim 1, wherein the longitudinal guide (72, 74) prevents cross-flows between the heating channels (10, 12, 14, 16).
  7. Heating unit according to one of the preceding claims, wherein the container (8) has an inlet port (28) and an outlet (30) for the fluid (4) and the cover (8) has electrical contact elements (96, 98, 100, 102) to supply power to the heating elements (36, 38).
  8. Heating unit according to claim 7, wherein the inlet port (28) and the outlet port (30) are formed at sections of the container remote from the opening (58) and are in fluidic connection with a lead channel (24) and a return channel (26) respectively.
  9. Heating unit according to claim 8, wherein the lead channel (24) and the return channel (26) are formed in edge areas of the container (6) and laterally flank the outer heating channels (10, 16).
  10. Heating unit according to claim 9, wherein the contact elements are contact studs (96, 98, 100, 102) which extend transversely to the longitudinal axis (x) of the heating elements (36, 38).
EP11725377.3A 2010-06-15 2011-05-31 Heating unit Not-in-force EP2583035B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11725377T PL2583035T3 (en) 2010-06-15 2011-05-31 Heating unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010030101A DE102010030101A1 (en) 2010-06-15 2010-06-15 heating block
PCT/EP2011/058900 WO2011157544A2 (en) 2010-06-15 2011-05-31 Heating unit

Publications (2)

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EP2583035A2 EP2583035A2 (en) 2013-04-24
EP2583035B1 true EP2583035B1 (en) 2016-02-10

Family

ID=44627045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11725377.3A Not-in-force EP2583035B1 (en) 2010-06-15 2011-05-31 Heating unit

Country Status (4)

Country Link
EP (1) EP2583035B1 (en)
DE (1) DE102010030101A1 (en)
PL (1) PL2583035T3 (en)
WO (1) WO2011157544A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106091355A (en) * 2016-08-10 2016-11-09 江苏苏美达机电有限公司 A kind of immediately heating water heater inner bag

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE332682A (en) *
US1445019A (en) * 1922-05-05 1923-02-13 Hydrotherm Fabrik Elek Scher A Electric water heater
US1985830A (en) * 1929-10-01 1934-12-25 Hynes Lee Powers Apparatus for treating fluid mediums
DE1106004B (en) * 1957-12-14 1961-05-04 Eckerfeld Alfred Electrically heated water heater
US5438642A (en) * 1993-07-13 1995-08-01 Instantaneous Thermal Systems, Inc. Instantaneous water heater
DE19651087C2 (en) 1996-12-09 2002-06-20 Bsh Bosch Siemens Hausgeraete Heating block with housing shells
DE20107976U1 (en) 2001-05-03 2001-08-23 Gerdes oHG, 21337 Lüneburg Adapter for heating coil
DE20108117U1 (en) 2001-05-09 2001-08-16 Gerdes oHG, 21337 Lüneburg Base body, preferably as a component of an electrical instantaneous water heater

Also Published As

Publication number Publication date
DE102010030101A1 (en) 2011-12-15
WO2011157544A2 (en) 2011-12-22
WO2011157544A3 (en) 2013-03-21
EP2583035A2 (en) 2013-04-24
PL2583035T3 (en) 2016-06-30

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