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EP2583035B1 - Bloc chauffant - Google Patents

Bloc chauffant 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
Authority
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)
English (en)
Other versions
EP2583035A2 (fr
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
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL11725377T priority Critical patent/PL2583035T3/pl
Publication of EP2583035A2 publication Critical patent/EP2583035A2/fr
Application granted granted Critical
Publication of EP2583035B1 publication Critical patent/EP2583035B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H05B3/78—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)

Claims (10)

  1. Bloc chauffant (1) pour un chauffe-eau instantané chauffable électriquement, comprenant un boîtier (2) dans lequel des canaux de chauffage (10, 12, 14, 16) s'étendant en forme de méandres sont réalisés pour définir un trajet de chauffe pour un fluide (4), et comprenant des éléments chauffants (36, 38) destinés à échauffer le fluide (4) circulant à travers les canaux de chauffage, le boîtier (2) étant formé par un réservoir (6) muni d'une ouverture latérale (56) et par un couvercle (8) destiné à fermer l'ouverture (56), le couvercle (8) présentant des saillies (82, 84) le long desquelles s'étendent les éléments chauffants (36, 38), les saillies (82, 84) étant entourées en forme de U par les éléments chauffants (36, 38) et représentant des parois intermédiaires (82, 84) qui sont respectivement insérables dans une poche (62, 64) du réservoir (6) et divisent celles-ci pour obtenir les canaux de chauffage (10, 12, 14, 16), caractérisé en ce que les poches (62, 64) présentent au moins respectivement un guidage longitudinal (72, 74) destiné à insérer la paroi intermédiaire respective (82, 84) pour établir une prise coulissante entre le réservoir (6) et le couvercle (8).
  2. Bloc chauffant selon la revendication 1, les parois intermédiaires (82, 84) présentant des guidages (85, 87) pour la sécurité de positionnement des éléments chauffants (36, 38).
  3. Bloc chauffant selon la revendication 1, les poches (62, 64) étant formées par des parois de séparation (66, 68, 70) qui s'étendent respectivement d'une paroi de fond (58) du réservoir (6) en direction de l'ouverture (56).
  4. Bloc chauffant selon la revendication 3, les parois de séparation (66, 68, 70) étant placées en arrière de l'ouverture (56).
  5. Bloc chauffant selon la revendication 3 ou 4, les parois intermédiaires (82, 84) et les parois de séparation (66, 68, 70), à l'état monté, étant disposées en alternance les unes à côté des autres.
  6. Bloc chauffant selon la revendication 1, le guidage longitudinal (72, 74) empêchant des courants transversaux entre les canaux de chauffage (10, 12, 14, 16).
  7. Bloc chauffant selon l'une quelconque des revendications précédentes, le réservoir (8) présentant un embout d'entrée (28) et un embout de sortie (30) pour le fluide (4) et le couvercle (8) présentant des éléments de contact électriques (96, 98, 100, 102) pour l'alimentation en courant des éléments chauffants (36, 38).
  8. Bloc chauffant selon la revendication 7, l'embout d'entrée (28) et l'embout de sortie (30) étant réalisés sur des sections du réservoir distancées de l'ouverture (58) et étant en communication fluidique avec un canal d'arrivée (24) resp. un canal d'évacuation (26).
  9. Bloc chauffant selon la revendication 8, le canal d'arrivée (24) et le canal d'évacuation (26) étant réalisés dans des parties de bord du réservoir (8) et étant latéralement adjacents aux canaux de chauffage extérieurs (10, 16).
  10. Bloc chauffant selon la revendication 9, les éléments de contact étant des boulons de contact (96, 98, 100, 102) qui s'étendent transversalement à l'axe longitudinal (x) des éléments chauffants (36, 38).
EP11725377.3A 2010-06-15 2011-05-31 Bloc chauffant Not-in-force EP2583035B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11725377T PL2583035T3 (pl) 2010-06-15 2011-05-31 Blok grzejny

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010030101A DE102010030101A1 (de) 2010-06-15 2010-06-15 Heizblock
PCT/EP2011/058900 WO2011157544A2 (fr) 2010-06-15 2011-05-31 Bloc chauffant

Publications (2)

Publication Number Publication Date
EP2583035A2 EP2583035A2 (fr) 2013-04-24
EP2583035B1 true EP2583035B1 (fr) 2016-02-10

Family

ID=44627045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11725377.3A Not-in-force EP2583035B1 (fr) 2010-06-15 2011-05-31 Bloc chauffant

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023126132A1 (fr) 2021-12-31 2023-07-06 Valeo Systemes Thermiques Dispositif de chauffage d'un liquide caloporteur circulant a l'intérieur d'un circuit equipant un véhicule électrique ou hybride

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106091355A (zh) * 2016-08-10 2016-11-09 江苏苏美达机电有限公司 一种即热式热水器内胆

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE332682A (fr) *
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 (de) * 1957-12-14 1961-05-04 Eckerfeld Alfred Elektrisch beheizter Durchlauferhitzer
US5438642A (en) * 1993-07-13 1995-08-01 Instantaneous Thermal Systems, Inc. Instantaneous water heater
DE19651087C2 (de) 1996-12-09 2002-06-20 Bsh Bosch Siemens Hausgeraete Heizblock mit Gehäuseschalen
DE20107976U1 (de) 2001-05-03 2001-08-23 Gerdes oHG, 21337 Lüneburg Adapter für Heizwendel
DE20108117U1 (de) 2001-05-09 2001-08-16 Gerdes oHG, 21337 Lüneburg Grundkörper, vorzugsweise als Komponente eines elektrischen Durchlauferhitzers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023126132A1 (fr) 2021-12-31 2023-07-06 Valeo Systemes Thermiques Dispositif de chauffage d'un liquide caloporteur circulant a l'intérieur d'un circuit equipant un véhicule électrique ou hybride
EP4457114A1 (fr) * 2021-12-31 2024-11-06 Valeo Systemes Thermiques Dispositif de chauffage d'un liquide caloporteur circulant a l'intérieur d'un circuit equipant un véhicule électrique ou hybride

Also Published As

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

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