EP0574820B1 - Arrangement and method for mounting an electric instantaneous heater - Google Patents
Arrangement and method for mounting an electric instantaneous heater Download PDFInfo
- Publication number
- EP0574820B1 EP0574820B1 EP93109271A EP93109271A EP0574820B1 EP 0574820 B1 EP0574820 B1 EP 0574820B1 EP 93109271 A EP93109271 A EP 93109271A EP 93109271 A EP93109271 A EP 93109271A EP 0574820 B1 EP0574820 B1 EP 0574820B1
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- EP
- European Patent Office
- Prior art keywords
- cold water
- arrangement
- water
- warm water
- housing
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- 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
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
- F24H9/139—Continuous flow heaters
Definitions
- the invention relates to an arrangement and a Method of assembling an electric instantaneous water heater, which is a substantially box-shaped housing with at least a control button attached to the edge of a front panel and one with a cold water inlet and one Has hot water outlet connected heating section.
- a water heater is known from document DE-A-3 816 817.
- Instantaneous water heaters known from practice have either on the bottom or on the back fixed installed inlets and outlets.
- the installation pattern on the instantaneous water heater corresponds to the wall connection pattern the hot and cold water connections.
- the hot water connection is on the right and the cold water connection at a specified distance from the hot water connection Left.
- Instantaneous water heaters are usually as close as possible the associated tap (s) mounted on a wall.
- the control button must be accessible to the user in the upper table Height. It is therefore regularly close to the lower one Housing edge arranged where it even for small stature People can be reached. From optical or aesthetic Under-desk mounting is becoming increasingly electrical Instantaneous water heater preferred.
- connection pattern more conventional
- instantaneous water heaters are usually only permitted an "upright" positioning of the water heater, whereby the control button is at the bottom of the device.
- This has the disadvantage that the user when operating of the control button either bend deep under the sink or even kneel to reach the control button.
- Cross mounting is with conventional equipment and mounting arrangements at most with the interposition of adapters possible, which increase the construction volume.
- the invention is therefore based on the task, the mounting options of the instantaneous water heater to expand equally optical, aesthetic and ergonomic Satisfy needs.
- this object is achieved according to the invention solved that a flexible pipe between the cold water inlet and heating section and between heating section and Hot water spout is integrated into the waterway that the housing of the instantaneous water heater then into a suitable one Position brought to the water connection pattern and hot water outlet and cold water inlet with the associated water water and cold water connections of the water connection pattern connected, if necessary, crossed, the movement play the flexible cables to compensate for differences in position is exploited.
- the use of plastic hoses following a heating section of a water heater is known from DE 36 09 213 A1. However, should the hoses only form water resistance channels. Any flexibility of the hoses is not addressed. Above all, there is no indication that with the help of the hoses the mounting options of the Extend water heater.
- the control button is as close as possible to the top table the lower edge (as with conventional heaters) and when mounted under the table near the top edge (contrary to conventional Assembly) arranged. With a frequently advantageous The embodiment is the control button near a corner a square front panel. This corner will then again for ergonomic reasons the hot water tap arranged adjacent.
- the invention provides that the box-shaped solution to the problem Housing made of a lower part supporting the heating section and one carrying the control button and the front panel Hood exists, which with the lower part over two locally separated Connection devices positive and / or non-positive is connectable; that the lower part is fixed; and that the two connecting devices both on the hood, as well as arranged axially symmetrically on the lower part are that the hood is rotated in two by 180 ° around the axis Positions can be mounted on the lower part.
- Possibility of pivoting the hood otherwise always the same arrangement of the lower part and the essential components of the electric instantaneous water heater can take advantage of the invention without essential Change in the design of the instantaneous water heater used will.
- a spring-loaded check valve is preferably open the cold water side of the heating section arranged such that it prevents a backflow of water into the cold water connection.
- the spring load makes the check valve function regardless of the respective mounting position of the device.
- Weighted Check valves used in conventional electric heaters usually used are only in one The heater is in the "upright" position.
- the universal installation option allows the electric heater a housing shape similar to common bathroom furniture elements to give and the device as a module in a system wall to integrate.
- the heater can be used as Mirror element can be used if its front panel is mirrored is.
- the instantaneous water heater 1 shown in FIG. 1 has the following essential functional elements: Cold water inlet 2, a first flexible line 4, a connection block 2 ', a control device 3, in particular for controlling the Serves heating power, a first (flexible) insulation section 4 ', one of these downstream heating section 5 with first, second and third heating modules 5a, 5b and 5c, the same Have training, further downstream of the heating section second flexible line (second insulation section) 6 and one Hot water spout 7.
- connection block 2 ' is designed as a metal block, in which a manually operated shut-off valve 11, a water filter 12 and a spring-operated check valve 13 are integrated. Downstream of the connection block 2 'are the control device 3 and Various measuring and control elements common to instantaneous water heaters arranged. In the control device 3 there are TRIACs 31 for separate control of the heating output of the individual heating modules 5a, 5b and 5c provided over the heating coil 50a, 50b and 50.
- the heating coil 50a-c consist of bare heating resistance wires, which an excellent heat transfer to the ensure heating fluid (water). Are prescribed certain insulation resistances between bare heating coils and the next metallic connection point in the flow path of the water.
- the fluid lines must be correspondingly long between the respective heating modules 5a and 5c and the connections be on the cold or hot water side.
- These fluid line paths are shown in the instantaneous water heater through flexible hoses 4 ', 6 made of electrically insulating material educated.
- these hoses are easy to use couple with appropriate connecting pieces and on the other hand easy and space-saving to lay. For example, you can in loops behind the heating section 5 in a lower part of the device be housed. The loop diameter gets big enough chosen so that the flow resistances are limited and thus the Pressure losses in the lines forming the insulation sections can be kept low.
- the invention uses the flexible lines 4, 4 ' and 6 gained mobility but not only to save space Laying the insulation sections, but also for variation and adjustment of the connection positions of the inlets and outlets 2 and 7.
- the location of the connection elements must in any case with match that of the wall-side water connection pattern, in such a way that the cold water inlet 2 also with the Cold water connection and hot water outlet also with the Hot water connection is connected.
- the one shown in Figure 1 Relative position must therefore depend on the position of the electric instantaneous water heater changed and possibly even crossed. Therefor give the lines designed as flexible hoses 4 and 6 the necessary freedom of movement. It's easy to see that for the purposes of the invention, i.e.
- FIGS 2 and 4 show some external configurations and mounting options, as offered by the invention will.
- FIG. 2 shows an example of an under-table installation of the Instantaneous water heater 1.
- the latter is mounted so that an operating button 10 at an attainable level, i.e. near the top of the device is arranged.
- the control button is in the upper right end of the front panel 15 arranged so that even when the arrangement of the Device and-the washstand 17-no hand or visual impairment is to be feared.
- the instantaneous water heater la in top table assembly and Cross arrangement.
- the control button 10 is near the lower long side and therefore at an ergonomic handle height.
- the front panel 15a is mirrored.
- the instantaneous water heater shown in Figure 3 is installed in a completely new way in a wall recess 28 and via a mounting plate, not shown in the drawing attached.
- This new flush-mounted version of the instantaneous water heater la accommodates the fact that based on instantaneous heater described by Figure 1 with its functional elements through the three relatively thin, arranged in one plane Heating modules 5a-5c has an extremely small depth.
- FIG 4 shows another variant of the training and assembly a water heater 1b. It is installed in the upper table a bathroom furniture module system designated as a whole by 8 integrated. With this furniture system, the sink 17 is included the hot water tap 18 rebuilt. The control button 10 is located during this upright assembly of the instantaneous water heater 1b in the corner of the tap 18 Front panel 15b. The latter has one adapted to the furniture system Surface structure.
- 5A and 5B show vertical sections through a two-part Housing 20, the additional mounting options of the visible Open the front part of the housing.
- the housing 20 consists of a preferably wall-fixed Lower part 21 and an approximately box-shaped hood 22.
- the lower part has a crimped peripheral edge 23 on which the hood edge can be plugged on.
- In the cutting plane 5A and 5B corresponding central plane of the Hood 22 are incisions at diametrically opposite locations 24 trained.
- In the assembled state of the lower part 21 and hood 22 are the two axial incisions 24 with mutually aligned bores 25 in the rabbet-like edge 23 aligned. Assembled in that shown in Fig.
- each screw 26 inserted into one internally threaded connector in the form of a Nut or a threaded ring 27 are screwed.
- the connecting element 27 is in the illustrated embodiment with the peripheral edge 23 of the lower part 21, for example connected by gluing or welding.
- the control button is in the position shown in FIG. 5A 10 in the upper half of those trained on the hood 22 Front panel arranged.
- the control button 10 By rotating the hood 22 to one Axis of the control button 10 parallel and to the axis 28 of the two Connecting devices 26, 27 rectangular device axis can the control button 10 in the lower dash-dotted line Position can be pivoted.
- the device for over-the-counter mounting is special suitable.
- the housing design described with reference to FIGS. 5A and 5B can the hood 22 with the control button 10 in the assembly-ready Position to be brought; the connecting devices 23 ... 27 on the bottom and top of the housing have paired training and symmetrical Arrangement.
- a drip protection for those inside the Housing 20 arranged electrical components can be reach the critical junctions, for example, that the screw 26 on the top of the housing with a Plastic or rubber hood is covered.
- connection devices shown in FIGS. 5A, B numerous alternatives are possible. So it can Lower part 21 with a non-positive clamping device similar to the screw-nut combination 26, 27 on the underside be provided while between the cranked edge 23 and the edge of the hood 22 in the area of the upper connection point a locking device is effective. It is only essential that the Interchangeable top and bottom connectors are, so that the hood 22 for producing the desired mounting position can be rotated by 180 °.
- the instantaneous water heater can be upright, transverse, reversed and even attached diagonally to the mounting wall will. Distances and relative positions between the inlets and outlets 2 and 7 of the instantaneous water heater 1 shown in FIG. 1 arbitrarily variable, by using the large movement game the flexible lines 4 and 6.
- the actuators can therefore by appropriate position correction or targeted Arrangement on the front panel or on another side of the device be provided so that they are comfortable for the user attainable and on the other hand harmonious in the overall look are inserted.
- Several control elements can also be provided to increase user comfort. Essential is that basically the same housing shapes for the different Mounting arrangements and surface designs provided can be the basic structure for all variations maintain and minimize manufacturing costs.
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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)
- Central Heating Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Anordnung und ein Verfahren zur Montage eines elektrischen Durchlauferhitzers, der ein im wesentlichen kastenförmiges Gehäuse mit wenigstens einem randnah an einer Frontplatte angebrachten Bedienknopf und eine mit einem Kaltwasser-Einlauf und einem Warmwasser-Auslauf verbundene Heizstrecke aufweist. Ein derartiger Durchlauferhitzer ist aus dem Dokument DE-A- 3 816 817 bekannt.The invention relates to an arrangement and a Method of assembling an electric instantaneous water heater, which is a substantially box-shaped housing with at least a control button attached to the edge of a front panel and one with a cold water inlet and one Has hot water outlet connected heating section. Such a water heater is known from document DE-A-3 816 817.
Herkömmliche aus der Praxis bekannten Durchlauferhitzer haben entweder auf der Unterseite oder auf der Rückseite lagefest installierte Ein- und Ausläufe. Das Installationsmuster am Durchlauferhitzer entspricht dem Wandanschlußmuster der Warm- und Kaltwasseranschlüsse. Konventionell liegt der Warmwasseranschluß rechts und der Kaltwasseranschluß in vorgegebenem Abstand vom Warmwasseranschluß links. Durchlauferhitzer werden üblicherweise möglichst nahe der zugehörigen Zapfstelle(n) an einer Wand montiert. Bei Obertischmontage muß der Bedienknopf für den Benutzer in erreichbarer Höhe liegen. Er ist daher regelmäßig nahe dem unteren Gehäuserand angeordnet, wo er selbst für kleinwüchsige Personen erreichbar ist. Aus optischen oder ästetischen Gründen wird zunehmend die Untertischmontage elektrischer Durchlauferhitzer bevorzugt. Das Anschlußmuster herkömmlicher Durchlauferhitzer gestattet jedoch in der Regel nur eine "aufrechte" Positionierung des Durchlauferhitzers, wobei sich der Bedienknopf am unteren Geräterand befindet. Dies hat den Nachteil, daß sich der Benutzer bei Betätigung des Bedienknopfes entweder tief unter das Waschbecken bücken oder sogar knien muß, um den Bedienknopf zu erreichen. Auch Quermontagen sind mit herkömmlichen Geräten und Montageanordnungen allenfalls unter Zwischenschaltung von Adaptern möglich, die das Bauvolumen vergrößern.Conventional instantaneous water heaters known from practice have either on the bottom or on the back fixed installed inlets and outlets. The installation pattern on the instantaneous water heater corresponds to the wall connection pattern the hot and cold water connections. Conventional the hot water connection is on the right and the cold water connection at a specified distance from the hot water connection Left. Instantaneous water heaters are usually as close as possible the associated tap (s) mounted on a wall. At The control button must be accessible to the user in the upper table Height. It is therefore regularly close to the lower one Housing edge arranged where it even for small stature People can be reached. From optical or aesthetic Under-desk mounting is becoming increasingly electrical Instantaneous water heater preferred. The connection pattern more conventional However, instantaneous water heaters are usually only permitted an "upright" positioning of the water heater, whereby the control button is at the bottom of the device. This has the disadvantage that the user when operating of the control button either bend deep under the sink or even kneel to reach the control button. Also Cross mounting is with conventional equipment and mounting arrangements at most with the interposition of adapters possible, which increase the construction volume.
Der Erfindung liegt daher die Aufgabe zugrunde, die Montagemöglichkeiten des Durchlauferhitzers zu erweitern, um gleichermaßen optische bzw. ästhetische wie auch ergonomische Bedürfnisse zu befriedigen.The invention is therefore based on the task, the mounting options of the instantaneous water heater to expand equally optical, aesthetic and ergonomic Satisfy needs.
Bei der Anordnung der eingangs genannten Art wird diese
Aufgabe erfindungsgemäß dadurch gelöst,
Verfahrensmäßig wird diese Aufgabe erfindungsgemäß dadurch gelöst, daß je eine flexible Leitung zwischen Kaltwasser-Einlauf und Heizstrecke sowie zwischen Heizstrecke und Warmwasser-Auslauf in den Wasserweg eingebunden wird, daß das Gehäuse des Durchlauferhitzers sodann in eine geeignete Lage zum Wasseranschlußmuster gebracht und Warmwasser-Auslauf und Kaltwasser-Einlauf mit den zugehörigen Wasserwasser- und Kaltwasser-Anschlüssen des Wasseranschlußmusters verbunden, wenn nötig, gekreuzt werden, wobei das Bewegungsspiel der flexiblen Leitungen zum Ausgleich von Lagedifferenzen ausgenutzt wird. Die Verwendung von Kunststoffschläuchen im Anschluß an eine Heizstrecke eines Durchlauferhitzers ist aus der DE 36 09 213 A1 bekannt. Allerdings sollen die Schläuche dabei lediglich Wasserwiderstandskanäle bilden. Eine etwaige Flexibilität der Schläuche wird nicht angesprochen. Vor allen Dingen findet sich kein Hinweis dahingehend, mit Hilfe der Schläuche die Montagemöglichkeiten des Durchlauferhitzers zu erweitern.In terms of method, this object is achieved according to the invention solved that a flexible pipe between the cold water inlet and heating section and between heating section and Hot water spout is integrated into the waterway that the housing of the instantaneous water heater then into a suitable one Position brought to the water connection pattern and hot water outlet and cold water inlet with the associated water water and cold water connections of the water connection pattern connected, if necessary, crossed, the movement play the flexible cables to compensate for differences in position is exploited. The use of plastic hoses following a heating section of a water heater is known from DE 36 09 213 A1. However, should the hoses only form water resistance channels. Any flexibility of the hoses is not addressed. Above all, there is no indication that with the help of the hoses the mounting options of the Extend water heater.
Letzeres hingegen wird mit der Erfindung erreicht. Aufgrund der Beweglichkeit von Kaltwasser-Einlauf und Warmwasser-Auslauf gegenüber der gerätefesten Heizstrecke werden besondere Montageplatten oder Adapter zum Kreuzen oder zur Lageänderung der Rohranschlüsse überflüssig. Die Lage des Durchlauferhitzergehäuses und damit des Bedienknopfs wird dadurch unabhängig von dem jeweils vorgegebenen Wandanschlußmuster. Der elektrische Durchlauferhitzer kann vom Installateur an derjenigen Stelle und in derjenigen Anschlußposition angebracht werden, die der Kunde aus optischen, ästhetischen und/oder ergonomischen Gründen wünscht.The latter, however, is achieved with the invention. Because of the flexibility of the cold water inlet and hot water outlet compared to the fixed heating section special mounting plates or adapters for crossing or There is no need to change the position of the pipe connections. The location of the Instantaneous water heater housing and thus the control button thereby independent of the given wall connection pattern. The electric instantaneous water heater can be used by the installer at that point and in that connection position be attached, which the customer from optical, aesthetic and / or ergonomic reasons.
Bei Obertischmontage wird der Bedienknopf möglichst nahe des unteren Randes (wie bei herkömmlichen Heizgeräten) und bei Untertischmontage nahe des oberen Randes (entgegen herkömmlicher Montage) angeordnet. Bei einem häufig vorteilhaften Ausführungsbeispiel ist der Bedienknopf nahe einer Ecke einer viereckigen Frontplatte angeordnet. Diese Ecke wird dann wiederum aus ergonomischen Gründen der Warmwasserzapfstelle benachbart angeordnet.The control button is as close as possible to the top table the lower edge (as with conventional heaters) and when mounted under the table near the top edge (contrary to conventional Assembly) arranged. With a frequently advantageous The embodiment is the control button near a corner a square front panel. This corner will then again for ergonomic reasons the hot water tap arranged adjacent.
Alternativ oder zusätzlich zu der zuvor beschriebenen Aufgabenlösung sieht die Erfindung vor, daß das kastenförmige Gehäuse aus einem die Heizstrecke tragenden Unterteil und einer den Bedienknopf und die Frontplatte tragenden Haube besteht, die mit dem Unterteil über zwei örtlich getrennte Verbindungsvorrichtungen form- und/oder kraftschlüssig verbindbar ist; daß das Unterteil fest montiert ist; und daß die beiden Verbindungsvorrichtungen sowohl an der Haube, als auch am Unterteil achssymmetrisch derart angeordnet sind, daß die Haube in zwei um 180° um die Achse gedrehten Positionen am Unterteil montierbar ist. Mit dieser alternativen Möglichkeit zum Verschwenken der Haube bei ansonsten stets gleichbleibender Anordnung des Unterteils und der funktionswesentlichen Komponenten des elektrischen Durchlauferhitzers können die Vorteile der Erfindung ohne wesentliche Änderung des Aufbaus des Durchlauferhitzers genutzt werden. Es bedarf nur einer geeigneten Konfiguration und Anordnung der Verbindungselemente, welche die beiden getrennten Verbindungsvorrichtungen einerseits am Unterteil und andererseits an der Haube bilden. Diese müssen so ausgebildet sein, daß sie geeignet ineinander greifen und ihre Verbindungsfunktion unabhängig von der jeweiligen Position der Haube erfüllen.Alternatively or in addition to that previously described The invention provides that the box-shaped solution to the problem Housing made of a lower part supporting the heating section and one carrying the control button and the front panel Hood exists, which with the lower part over two locally separated Connection devices positive and / or non-positive is connectable; that the lower part is fixed; and that the two connecting devices both on the hood, as well as arranged axially symmetrically on the lower part are that the hood is rotated in two by 180 ° around the axis Positions can be mounted on the lower part. With this alternative Possibility of pivoting the hood otherwise always the same arrangement of the lower part and the essential components of the electric instantaneous water heater can take advantage of the invention without essential Change in the design of the instantaneous water heater used will. All that is required is a suitable configuration and arrangement of the connecting elements which separate the two Connecting devices on the one hand on the lower part and on the other hand form on the hood. These must be trained in this way be that they mesh appropriately and their connection function regardless of the position of the Meet hood.
Unter Verwendung der Merkmale des Patentanspruchs 8 wird auch der Tropfwasserschutz gewährleistet, der bisher nur bei Durchlauferhitzern mit einer einzigen vorgegebenen Relativposition von Haube und Unterteil möglich war.Using the features of claim 8 also the drip water protection, which was previously only guaranteed Instantaneous water heaters with a single predetermined relative position of hood and lower part was possible.
Vorzugsweise ist ein federbelastetes Rückschlagventil auf der Kaltwasserseite der Heizstrecke derart angeordnet, daß es einen Rückstrom von Wasser in den Kaltwasseranschluß verhindert. Die Federbelastung macht die Funktion des Rückschlagventils unabhängig von der jeweiligen Montagelage des Geräts. Gewichtsbelastete Rückschlagventile, die bei herkömmlichen Elektroheizgeräten in der Regel verwendet werden, sind nur in einer "aufrechten" Position des Heizgeräts funktionsfähig.A spring-loaded check valve is preferably open the cold water side of the heating section arranged such that it prevents a backflow of water into the cold water connection. The spring load makes the check valve function regardless of the respective mounting position of the device. Weighted Check valves used in conventional electric heaters usually used are only in one The heater is in the "upright" position.
Die universelle Einbaumöglichkeit gestattet es, dem Elektroheizgerät eine Gehäuseform ähnlich üblichen Badezimmer-Möbelelementen zu geben und das Gerät als Modul in eine Systemwand zu integrieren. Beispielsweise kann das Heizgerät als Spiegelelement verwendet werden, wenn seine Frontplatte verspiegelt ist.The universal installation option allows the electric heater a housing shape similar to common bathroom furniture elements to give and the device as a module in a system wall to integrate. For example, the heater can be used as Mirror element can be used if its front panel is mirrored is.
Eine besonders günstige, weil flachbauende Ausführungsform ergibt sich, wenn der elektrische Durchlauferhitzer eine aus rohrförmigen Heizmodulen bestehende Heizstrecke hat. Diese Ausführung ist in der älteren Patentanmeldung P 42 08 675.2 vom 18. März 1992 beschrieben, deren Inhalt in die vorliegende Beschreibung einbezogen wird.A particularly inexpensive, because flat construction embodiment arises when the electric instantaneous water heater turns off has tubular heating modules existing heating section. This execution is in the older patent application P 42 08 675.2 from March 18, 1992, the contents of which are described in the present description is included.
Weitere vorteilhafte Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen anhand der Zeichnung. In der Zeichnung zeigen:
- Fig. 1
- eine schematische Darstellung der wesentlichen Funktionselemente eines Ausführungsbeispiels eines elektrischen Durchlauferhitzers, der mit beweglichen Ein- und Ausläufen als Voraussetzung für die variable Montage ausgestattet ist;
- Fig. 2
- eine Darstellung einer ergonomischen Untertischmontage des Durchlauferhitzers;
- Fig. 3
- einen Durchlauferhitzer in Unterputzausführung mit verspiegelter Frontfläche;
- Fig. 4
- eine Montageausführung mit einem als Element eines Badezimmer-Möbelsystems ausgebildeten Durchlauferhitzers in Obertischmontage; und
- Fig. 5A und B
- Vertikalschnitte durch das aus einem festen Unterteil und einer passenden Haube bestehende Gehäuse eines Durchlauferhitzers in geöffentem und geschlossenem Zustand.
- Fig. 1
- is a schematic representation of the essential functional elements of an embodiment of an electric instantaneous water heater, which is equipped with movable inlets and outlets as a prerequisite for variable assembly;
- Fig. 2
- an illustration of an ergonomic under-table installation of the instantaneous water heater;
- Fig. 3
- a instantaneous water heater with a mirrored front surface;
- Fig. 4
- an assembly version with a water heater designed as an element of a bathroom furniture system in upper table assembly; and
- 5A and B
- Vertical sections through the housing of a continuous flow heater consisting of a fixed lower part and a suitable hood in the open and closed state.
Der in Figur 1 darstellte Durchlauferhitzer 1 weist die
folgenden wesentlichen Funktionselemente auf: Kaltwasser-Einlauf
2, eine erste flexible Leitung 4, einen Anschlußblock 2',
eine Steuereinrichtung 3, die insbesondere zur Steuerung der
Heizleistung dient, eine erste (flexible) Isolationsstrecke 4',
eine dieser nachgeschaltete Heizstrecke 5 mit ersten, zweiten
und dritten Heizmodulen 5a, 5b und 5c, die übereinstimmende
Ausbildung haben, ferner eine der Heizstrecke nachgeschaltete
zweite flexible Leitung (zweite Isolationsstrecke) 6 und einen
Warmwasser-Auslauf 7.The
Der Anschlußblock 2' ist als Metallblock ausgebildet, in
welchem ein handbetätigbares Absperrventil 11, ein Wasserfilter
12 und ein federbetätigtes Rückschlagventil 13 integriert sind.
Stromab des Anschlußblocks 2' sind die Steuereinrichtung 3 und
verschiedene, bei Durchlauferhitzern übliche Meß- und Steuerelemente
angeordnet. In der Steuereinrichtung 3 sind TRIAC's 31
zur separaten Steuerung der Heizleistung der einzelnen Heizmodule
5a, 5b und 5c über deren Heizwendel 50a, 50b und 50 vorgesehen.
Die Heizwendel 50a-c bestehen aus blanken Heizwiderstandsdrähten,
die einen vorzüglichen Wärmeübergang zu dem zu
beheizenden Fluid (Wasser) gewährleisten. Vorgeschrieben sind
bestimmte Isolationswiderstände zwischen blanken Heizwendeln
und der nächsten metallischen Anschlußstelle im Strömungsweg
des Wassers. Dementsprechend lang müssen die Fluidleitungen
zwischen den jeweiligen Heizmodulen 5a bzw. 5c und den Anschlüssen
auf der Kalt- bzw. Warmwasserseite sein. Diese Fluidleitungswege
werden bei dem dargestellten Durchlauferhitzer
durch flexible Schläuche 4', 6 aus elektrisch isolierendem Material
gebildet. Diese Schläuche lassen sich einerseits einfach
mit entsprechenden Anschlußstutzen kuppeln und andererseits
einfach und platzsparend verlegen. So können sie beispielsweise
in Schleifen hinter der Heizstrecke 5 in einem Geräteunterteil
untergebracht sein. Der Schleifendurchmesser wird genügend groß
gewählt, damit die Strömungswiderstände begrenzt und damit die
Druckverluste in den die Isolationsstrecken bildenden Leitungen
gering gehalten werden können.The connection block 2 'is designed as a metal block, in
which a manually operated shut-off
Die Erfindung nutzt die durch die flexiblen Leitungen 4, 4'
und 6 gewonnene Beweglichkeit aber nicht nur zur platzsparenden
Verlegung der Isolationsstrecken, sondern auch zur Variation
und Anpassung der Anschlußpositionen der Ein- und Auslässe 2
und 7. Die Lage der Anschlußelemente muß in jedem Falle mit
derjenigen des wandseitigen Wasseranschlußmusters übereinstimmen,
und zwar so, daß der Kaltwasser-Einlauf 2 auch mit dem
Kaltwasseranschluß und der Warmwasser-Auslauf auch mit dem
Warmwasseranschluß verbunden wird. Die in Figur 1 dargestellte
Relativlage muß also je nach Stellung des elektrischen Durchlauferhitzers
verändert und ggf. sogar überkreuzt werden. Hierfür
geben die als flexible Schläuche ausgebildeten Leitungen 4
und 6 den notwendigen Bewegungsspielraum. Es ist leicht einzusehen,
daß es für die Zwecke der Erfindung, d.h. den Ausgleich
und die Anpassung der Einlauf- und Auslauf-Anschlußmuster in
vielen Fällen ausreicht, wenn nur eine der Leitungen 4 und 6
flexibel ausgebildet ist. Der andere Anschluß (2) kann sogar
gerätefest oder nur geringfügig änderbar sein. Die doppelte Beweglichkeit
durch flexible Ausführungen beider Leitungen 4 und
6 ist aber bevorzugt und erhöht die Variationsmöglichkeiten.The invention uses the
Die Figuren 2 und 4 zeigen einige äußere Ausgestaltungen und Montagemöglichkeiten, wie sie durch die Erfindung geboten werden.Figures 2 and 4 show some external configurations and mounting options, as offered by the invention will.
Figur 2 zeigt ein Beispiel für eine Untertischmontage des
Durchlauferhitzers 1. Letzterer ist so montiert, daß ein Bedienknopf
10 auf erreichbarem Niveau, d.h. nahe des oberen Randes
des Geräts angeordnet ist. (Bei herkömmlicher Montage befände
sich der Bedienknopf 10 am unteren Ende der Frontplatte
15.) Der Bedienknopf ist in der rechten oberen Ende der Frontplatte
15 angeordnet, so daß auch bei gedrängter Anordnung des
Geräts und-des Waschtischs 17-keine Griff- oder Sichtbehinderung
zu befürchten ist.Figure 2 shows an example of an under-table installation of the
Bei dem schematischen Ausführungsbeispiel gemäß Figur 3 befindet
sich der Durchlauferhitzer la in Obertischmontage und
Queranordnung. Der Bedienknopf 10 ist nahe der unteren Längsseite
und damit in ergonomischer Griffhöhe. Die Frontplatte 15a
ist verspiegelt. Der in Figur 3 dargestellte Durchlauferhitzer
ist in völlig neuartiger Weise in eine Wandvertiefung 28 eingebaut
und über eine in der Zeichnung nicht dargestellte Montageplatte
befestigt. Dieser neuen Unterputzausführung des Durchlauferhitzers
la kommt die Tatsache entgegen, daß der anhand
von Figur 1 mit seinen Funktionselementen beschriebene Durchlauferhitzer
durch die drei relativ dünnen, in einer Ebene angeordneten
Heizmodule 5a-5c eine äußerst geringe Tiefe hat.In the schematic embodiment shown in Figure 3
the instantaneous water heater la in top table assembly and
Cross arrangement. The
Figur 4 zeigt eine andere Variante der Ausbildung und Montage
eines Durchlauferhitzers 1b. Er ist in Obertischmontage in
ein als Ganzes mit 8 bezeichnetes Badezimmermöbel-Modulsystem
integriert. Mit diesem Möbelsystem ist das Waschbecken 17 mit
der Warmwasserzapfstelle 18 umbaut. Der Bedienknopf 10 befindet
sich bei dieser aufrechtstehenden Obertischmontage des Durchlauferhitzers
1b in der der Zapfstelle 18 zugewandten Ecke der
Frontplatte 15b. Letztere hat eine dem Möbelsystem angepaßte
Oberflächenstruktur.Figure 4 shows another variant of the training and assembly
a
Fig. 5A und 5B zeigen Vertikalschnitte durch ein zweiteiliges
Gehäuse 20, das zusätzliche Montagemöglichkeiten des sichtbaren
Frontteils des Gehäuses eröffnen.5A and 5B show vertical sections through a two-
Das Gehäuse 20 besteht aus einem vorzugsweise wandfesten
Unterteil 21 und einer etwa kastenförmigen Haube 22. Der Unterteil
hat einen falzartig gekröpften umlaufenden Rand 23, auf
den der Haubenrand passend aufsteckbar ist. In der der Schnittebene
gemäß den Fig. 5A und 5B entsprechenden Mittelebene der
Haube 22 sind an diametral gegenüberliegenden Stellen Einschnitte
24 ausgebildet. Im zusammengesetzten Zustand von Unterteil
21 und Haube 22 sind die beiden axial Einschnitte 24
mit-zueinander fluchtenden Bohrungen 25 im falzartigen Rand 23
ausgerichtet. In dem in Fig. 5B dargestellten zusammengebauten
Zustand sind in die beiden ausgerichteten Öffnungen 24 und 25
(oben und unten) jeweils Schrauben 26 eingesteckt, die in ein
mit Innengewinde versehenes Verbindungselement in Form einer
Mutter oder eines Gewinderings 27 eingeschraubt sind. Das Verbindungselement
27 ist in dem dargestellten Ausführungsbeispiel
mit dem umlaufenden Rand 23 des Unterteils 21 fest, beispielsweise
durch Verkleben oder Verschweißen verbunden.The
In der in Fig. 5A dargestellten Position ist der Bedienknopf
10 in der oberen Hälfte der an der Haube 22 ausgebildeten
Frontplatte angeordnet. Durch Drehen der Haube 22 um eine zur
Achse des Bedienknopfs 10 parallele und zur Achse 28 der beiden
Verbindungsvorrichtungen 26, 27 rechtwinklige Geräteachse kann
der Bedienknopf 10 in die strichpunktiert dargestellte untere
Position verschwenkt werden. In der unteren Position des Bedienknopfs
10 ist das Gerät für die Übertischmontage besonders
geeignet.The control button is in the position shown in FIG.
Bei der anhand Fig. 5A und 5B beschriebenen Gehäuseausführung
kann also die Haube 22 mit dem Bedienknopf 10 in die montagegerechte
Position gebracht werden; die Verbindungsvorrichtungen
23 ... 27 an der Gehäuseunterseite und der Gehäuseoberseite
haben paarweise übereinstimmende Ausbildung und symmetrische
Anordnung. Ein Tropfwasserschutz für die im Inneren des
Gehäuses 20 angeordneten elektrischen Komponenten läßt sich an
den kritischen Verbindungsstellen beispielsweise dadurch erreichen,
daß die Schraube 26 an der Gehäuseoberseite mit einer
Kunststoff- oder Gummihaube abgedeckt wird. In the case of the housing design described with reference to FIGS. 5A and 5B
can the
Anstelle der in Fig. 5A, B dargestellten Verbindungsvorrichtungen
sind zahlreiche Alternativen möglich. So kann das
Unterteil 21 mit einer kraftschlüssig wirkenden Spannvorrichtung
ähnlich der Schrauben-Mutter-Kombination 26, 27 an der Unterseite
versehen sein, während zwischen dem gekröpften Rand 23
und dem Rand der Haube 22 im Bereich der oberen Anschlußstelle
eine Rastvorrichtung wirksam ist. Wesentlich ist nur, daß die
Verbindungsvorrichtungen oben und unten wahlweise austauschbar
sind, so daß die Haube 22 zur Herstellung der gewünschten Montagelage
um 180° gedreht werden kann.Instead of the connection devices shown in FIGS. 5A, B
numerous alternatives are possible. So it can
Lower
Der Durchlauferhitzer kann hochkant, quer, seitenvertauscht
und sogar schräg an der Montagewand befestigt
werden. Abstände und Relativlagen zwischen den Ein- und Ausläufen
2 und 7 des in Figur 1 gezeigten Durchlauferhitzers 1 sind
beliebig variabel, und zwar durch Nutzung des großen Bewegungsspiels
der flexiblen Leitungen 4 und 6. Die Betätigungselemente
können daher durch geeignete Lagekorrektur oder auch gezielte
Anordnung auf der Frontplatte oder an einer anderen Geräteseite
so vorgesehen werden, daß sie einerseits für den Benutzer bequem
erreichbar und andererseits harmonisch in die gesamte Optik
eingefügt sind. Es können auch mehrere Bedienelemente vorgesehen
werden, um den Benutzerkomfort zu erhöhen. Wesentlich
ist, daß prinzipiell gleiche Gehäuseformen für die verschiedenen
Montageanordnungen und Oberflächengestaltungen vorgesehen
sein können, um die bauliche Grundstruktur für alle Variationen
beizubehalten und die Herstellungskosten zu minimieren.The instantaneous water heater can be upright, transverse, reversed
and even attached diagonally to the mounting wall
will. Distances and relative positions between the inlets and
Claims (11)
- Arrangement for installing an electrical continuous flow heater which has a substantially box-shaped housing (20) with at least one operating knob (10), which is mounted on a front plate (15) close to the edge thereof, and a heating path (5), which is connected to a cold water inlet (2) and a warm water outlet (7), characterised in that a flexible conduit (4, 6) is connected into the water path between the cold water inlet (2) and heating path (5) on the one hand and between the heating path (5) and warm water outlet (7) on the other hand; that the cold water inlet (2) and warm water outlet (7) are connectable to an externally predetermined water connection pattern in variable positions, the freedom of movement between the positionally fixed heating path (5) and the inlet (2) and outlet (3) at their connection with the water connection pattern being provided by the flexible conduits (4, 6); and that the cold water inlet (2) and warm water outlet (7) are so positioned and connected to the cold water and warm water connections of the water connection pattern that the operating knob (10) is situated at a level which is matched to the greatest extent possible to the warm water tap (18) and is thus ergonomically operable.
- Arrangement as claimed in Claim 1, characterised in that the at least one operating knob (10) is arranged close to a corner of a rectangular front plate (15).
- Arrangement as claimed in Claim 1 or 2, characterised in that a spring-loaded non-return valve (13) is so arranged on the cold water side of the heating path (5) that it prevents backflow of water into the cold water connection.
- Arrangement as claimed in one of Claims 1 to 3, characterised in that the front plate (15a) is provided with a mirror.
- Arrangement as claimed in one of Claims 1 to 4, characterised in that the box-shaped housing is matched to one or more elements of a bathroom furniture system as regards shape and external design and is integrated into the furniture system close to a warm water tap (18).
- Arrangement as claimed in one of Claims 1 to 4, characterised in that a mounting plate is arranged on the side of the continuous heater remote from the front plate (15) and that the continuous heater is installed in a recess (28) in a wall as a concealed device (1a) and is mounted and connected by means of the mounting plate.
- Arrangement for installing an electrical continuous heater which has a substantially box-shaped housing with at least one operating knob (10) attached to a front plate close to its edge and a heating path (5), which is connected to a cold water inlet (2) and a warm water outlet (7), particularly as claimed in one of Claims 1 to 6, characterised in that the box-shaped housing (20) comprises a lower portion (21) carrying the heating path (5) and a hood (22), which carries the operating knob (10) and the front plate and which is connectable in a shape- and/or force-locking manner to the lower portion (21) by means of two positionally separate connecting devices (23 ... 27); that the lower portion (21) is stationarily mounted; and that the two connecting devices (23 ... 27) are so arranged axially symmetrically both on the hood and also on the lower portion that the hood (22) may be mounted on the lower portion (21) in two positions rotated through 180° about the axis.
- Arrangement as claimed in Claim 7, characterised in that the two connecting devices (23 ... 27) are arranged on two diametrically opposing sides, both on the hood and also the lower portion, and are so constructed that a dripping water protector is formed for the electrical components of the continuous heater (1) in each of the two connection positions of the hood (22) rotated through 180°.
- Method of installing an electrical continuous heater, which has a substantially box-shaped housing (20) with at least one operating knob (10), which is attached to a front plate (15) close to its edge, a heating path (5), a cold water inlet (2) and a warm water outlet (7), the cold water inlet (2) and warm water outlet (7) being connected to a water connection pattern fixed to the wall, characterised in that a respective flexible conduit (4, 6) is connected into the water path between the cold water inlet (2) and the heating path (5) and between the heating path (5) and the warm water outlet (7), that the housing (20) of the continuous heater is then moved into a suitable position with respect to the water connection pattern and the warm water outlet (7) and the cold water inlet (2) are connected to the associated warm water and cold water connections of the water connection pattern and, if necessary, crossed over one another, the freedom of movement of the flexible conduits (4, 6) being made use of to compensate for positional differences.
- Method as claimed in Claim 9, characterised in that, when installed below a table, the housing is so fastened to the associated installation wall that a housing edge close to the operating knob (10) constitutes an upper housing boundary.
- Method as claimed in Claim 9 or 10, characterised in that the housing (20) is matched to the shape of a bathroom modular furniture system, is integrated in other modules of this system and is fastened to an installation wall.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4219643A DE4219643A1 (en) | 1992-06-16 | 1992-06-16 | Arrangement and method for assembling an electrical instantaneous water heater |
DE4219643 | 1992-06-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0574820A1 EP0574820A1 (en) | 1993-12-22 |
EP0574820B1 true EP0574820B1 (en) | 1998-01-21 |
Family
ID=6461099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93109271A Expired - Lifetime EP0574820B1 (en) | 1992-06-16 | 1993-06-09 | Arrangement and method for mounting an electric instantaneous heater |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0574820B1 (en) |
AT (1) | ATE162610T1 (en) |
DE (2) | DE4219643A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004018035B4 (en) * | 2004-04-14 | 2006-04-27 | Stiebel Eltron Gmbh & Co. Kg | Method for fitting through flow water electric heater module onto wall has four angled supports with ratchet grips to mount the module in one of four orientations onto a wall bracket |
ITAN20060046A1 (en) * | 2006-07-28 | 2008-01-29 | Merloni Termosanitari Spa | DEVICE CONSISTS OF A SERIES OF TRUNKS ACTING FOR ELECTRIC PIPE INSULATION |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE339466C (en) * | 1920-03-28 | 1921-07-26 | Karl Neubinger | Electric heating device for generating running hot water |
DE1829169U (en) * | 1959-03-24 | 1961-04-06 | Licentia Gmbh | ELECTRICALLY HEATED FLOW HEATER. |
US3781520A (en) * | 1971-12-06 | 1973-12-25 | Gardom & Lock Ltd | Electric instantaneous water heater |
DE3138293A1 (en) * | 1981-09-25 | 1983-07-14 | Elpag AG Chur, 7001 Chur | CONTINUOUS HEATER |
DE3609213A1 (en) * | 1985-11-26 | 1987-09-24 | Eckerfeld Erika | Channel body for electrical continuous-flow heaters |
DE3816817A1 (en) * | 1988-05-18 | 1989-11-30 | Stiebel Eltron Gmbh & Co Kg | Electric instantaneous water heater |
AT391936B (en) * | 1989-07-12 | 1990-12-27 | Vaillant Gmbh | DIRECTIONAL HEATER HOUSING |
-
1992
- 1992-06-16 DE DE4219643A patent/DE4219643A1/en not_active Ceased
-
1993
- 1993-06-09 AT AT93109271T patent/ATE162610T1/en not_active IP Right Cessation
- 1993-06-09 EP EP93109271A patent/EP0574820B1/en not_active Expired - Lifetime
- 1993-06-09 DE DE59308015T patent/DE59308015D1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE4219643A1 (en) | 1993-12-23 |
ATE162610T1 (en) | 1998-02-15 |
DE59308015D1 (en) | 1998-02-26 |
EP0574820A1 (en) | 1993-12-22 |
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