EP2489950B1 - Dispositif de raccordement pour un chauffe-eau instantané - Google Patents

Dispositif de raccordement pour un chauffe-eau instantané Download PDF

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Publication number
EP2489950B1
EP2489950B1 EP11155234.5A EP11155234A EP2489950B1 EP 2489950 B1 EP2489950 B1 EP 2489950B1 EP 11155234 A EP11155234 A EP 11155234A EP 2489950 B1 EP2489950 B1 EP 2489950B1
Authority
EP
European Patent Office
Prior art keywords
clamping
circuit board
printed circuit
connection apparatus
protective conductor
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.)
Active
Application number
EP11155234.5A
Other languages
German (de)
English (en)
Other versions
EP2489950A1 (fr
EP2489950A9 (fr
Inventor
Klaus Beck
Christian Koch
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.)
Gerdes OHG
Original Assignee
Gerdes OHG
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 Gerdes OHG filed Critical Gerdes OHG
Priority to PL11155234T priority Critical patent/PL2489950T3/pl
Priority to EP11155234.5A priority patent/EP2489950B1/fr
Publication of EP2489950A1 publication Critical patent/EP2489950A1/fr
Publication of EP2489950A9 publication Critical patent/EP2489950A9/fr
Priority to HK13102306.0A priority patent/HK1176393A1/zh
Application granted granted Critical
Publication of EP2489950B1 publication Critical patent/EP2489950B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10Continuous-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
    • F24H1/101Continuous-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/18Arrangement or mounting of grates or heating means
    • F24H9/1809Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818Arrangement or mounting of electric heating means

Definitions

  • connection device for a water heater comprising a one-piece, electrically conductive body having a U-shaped clamp for attachment to a pipeline and at least one further U-shaped clamp for attachment to at least one further pipeline.
  • the invention relates to a water heater for heating water, with a heating unit, which is associated with at least one inlet pipe and at least one drain pipe.
  • connection devices or water heater with such connection devices are known in the field of water heaters.
  • the U-shaped clamping brackets of the base body serve for the mechanical fixing of pipes or the like to a housing of the flow heater or the like and for providing a connection for contacting a protective conductor.
  • the U-shaped clamp can fix the tubes or the like to the housing, a support or support member or the like, without hindering rotation of the tubes.
  • the U-shaped clamping bracket are by their bracket-like training in a position to fix the pipes or the like on the one hand and on the other hand allow the free rotation of the tubes or the like.
  • the U-shaped clamp serve to allow an electrical coupling or contacting to a protective conductor.
  • the additional connections to the external electrical protective conductor are usually made within the instantaneous water heater by a plurality of flexible cables. Due to the distributed arrangement of the water-carrying pipelines and the other functional elements, such as the printed circuit board, a plurality of cables, each having a different length and / or with different cable cross-section for the corresponding connection to the external electrical protective conductor necessary.
  • connection device of the type mentioned above in that the main body has a first clamping element as part of a multi-part collecting terminal to be formed for the central electrical contacting of an external electrical protective conductor.
  • connection device in a surprisingly simple and secure manner, which provides a compact solution for connecting other safety and / or functionally relevant elements of the water heater to the external electrical protective conductor with the first clamping element encompassed by the base body.
  • the compact design of the connecting device is also supported by the one-piece design of the body. All now encompassed by the body elements according to the invention need not be produced individually and / or individually connected to the electrical protective conductor.
  • the integration of the first clamping element in the main body is to be emphasized, because this first clamping element is one of several parts of the collecting terminal to be formed.
  • the main body thus fulfills a plurality of functions, namely an electrical contacting of the plurality of pipes, the connection of these contacts with the first clamping element and the forming of a part of a multi-part collecting clamp.
  • the probability of error in the assembly of the device according to the invention is significantly lower than in known connection means from the prior art, since the integrally designed base body comprises the first clamping element to be formed multi-part collection terminal.
  • a multi-part collecting terminal is characterized in that it forms an electrical node for connecting a plurality of electrical elements, in particular the water heater.
  • the collective terminal thus represents the central electrical connection for contacting an external protective conductor.
  • a central connection in this sense is preferably characterized in that it is arranged to the elements to be connected in the smallest possible distance, for example at the edge of the water heater.
  • the situation is also influenced by other elements, in particular non-electrical elements of the water heater.
  • the U-shaped clamps are suitable for mounting on pipelines.
  • the connection device is characterized in that each clamp is attached to only one pipe. Due to the electrical conductivity of the base body can thus be connected in a particularly simple manner a plurality of pipes electrically connected to the first clamping element of the multi-part collection terminal.
  • connection device has a printed circuit board connection body with a further, corresponding to the first clamping element clamping element, wherein the clamping elements form a set up for receiving the protective conductor terminal space of the collective terminal.
  • the printed circuit board connecting body serves as an electrical connection element between the external electrical protective conductor and a printed circuit board of a water heater.
  • one of the clamping elements in cross section is U-shaped and the corresponding clamping element designed in the manner of a clamping plate.
  • the clamping space is not exclusively formed-as is known from the prior art-by a plurality of separate subelements, but rather by bodies of the connection device, which also ensure contact with the safety-relevant and / or function-relevant elements of the flow heater.
  • connection device is characterized in that a screw is connected to the clamping elements such that the clamping elements are braced against each other by means of the screw.
  • a further advantageous embodiment of the connecting device is characterized in that the U-shaped clamping bracket are arranged at least substantially in a common plane. This arrangement or this training facilitates the attachment of the clamp on the pipes, whereby the handling is improved.
  • a further advantageous embodiment is characterized in that the printed circuit board connection body has a solder tail for connection to a printed circuit board with an electrical circuit. Due to such a connection of the printed circuit board connection body to a printed circuit board, it is not necessary that the printed circuit board connection body is mechanically fixed as such to other elements of the water heater. Possible holding means for the printed circuit board connection body can thus be saved and the part circumference of a continuous flow heater can be reduced.
  • connection device is characterized in that the base body has a further clamping element which is assigned for connection of an internal protective conductor of an external socket or for forming a distribution terminal of a multi-part distribution terminal.
  • the main body extends over a certain distance in the water heater.
  • the main body also fulfills the function of a distribution line.
  • the distribution port is for connecting an internal component, such as a voltage converter, and / or for connecting an (external) protective conductor of an external component, such as an electrically controlled basin mixer.
  • An external socket is understood to mean a socket which is attached and / or arranged on the outer casing of the flow heater or which is integrated in the outer casing of the water heater.
  • the protective conductor connection of the External socket is thus electrically connected to the external protective conductor by means of the distribution terminal and the internal protective conductor.
  • a water heater for heating water with a heating unit, which are associated with at least one inlet pipe and at least one drain pipe, the water heater having the connecting device according to the invention.
  • Inlet piping or drain piping are those piping of a water heater, which pass through an external housing of a water heater.
  • the connecting device according to the invention the water heater is made particularly compact, since the main body has a first clamping element as part of a multi-part collecting terminal to be formed for the central electrical contacting of an external electrical protective conductor.
  • a preferred embodiment of the water heater is characterized in that the water heater has a printed circuit board, wherein the printed circuit board connection body of the connecting device according to the invention with the circuit board is electrically and / or materially connected.
  • the printed circuit board connection body of the water heater can have the further, corresponding to the first clamping element clamping element, wherein the two clamping elements form the arranged for receiving the external protective conductor terminal space of the collective terminal. Due to the multiple function of the base body and / or the printed circuit board connection body of the water heater is designed particularly compact.
  • a further advantageous embodiment of the water heater is characterized in that the circuit board and the at least one inlet pipe and / or the at least one drain pipe are arranged to each other such that the respective electrically and mechanically connected to the piping or to the circuit board clamping elements the terminal space of forming a multi-part collective terminal.
  • the circuit board and the at least one inlet pipe and / or the at least one drain pipe are arranged to each other such that the respective electrically and mechanically connected to the piping or to the circuit board clamping elements the terminal space of forming a multi-part collective terminal.
  • Fig. 1 shows a connecting device 2 for a water heater (not shown) with a one-piece, electrically conductive body 4, a U-shaped clamp 6 for mounting on a pipe 8 and at least one other U-shaped clamp 10 for attaching to at least one other pipeline 12, wherein the connecting device 2 is characterized in that the base body 4 has a first clamping element 14 as part of a multi-part collecting terminal 16 to be formed for the central electrical contacting of an external electrical protective conductor 20.
  • This is a surprisingly simple and safe way a compact and easy to handle connection device for electrical contacting of several safety and / or functionally relevant Elements of a water heater with an external electrical protective conductor 20 created.
  • Safety-relevant elements of a water heater can be, for example, the pipes 8 and 12.
  • a functionally relevant element of the water heater is, for example, a printed circuit board.
  • the U-shaped clamps 6, 10 are each attached to separate pipes 8, 10. Since the base body 4 and therefore also the U-shaped clamping bracket 6, 10 are electrically conductive, the electrical contact with the pipes 8, 12 is ensured safe. By attaching a particularly simple and secure contact between the base body 4 and the pipes 8, 12 is also created.
  • the U-shaped clamping bracket 6, 10 at the same time be designed to be plugged onto the pipes 8, 12.
  • the, in particular at least two of the U-shaped clamping bracket 6, 10 at least substantially in a common plane X, Y are arranged.
  • the plurality of U-shaped clamping straps 6, 10 are each attached to one of a plurality of parallel pipelines 8, 12.
  • the body 4 with its U-shaped clamping brackets 6, 10 in an advantageous manner parallel to all or at least on several of the pipes 8, 12 inserted thus establishes an electrical contact between the pipes 8, 12 and the first clamping element 14.
  • the base body 4 a first clamping element 14 of a multi-part collection terminal 16, wherein the first clamping element 14 is configured to form the terminal space 22.
  • the collecting clamp 16 may preferably be a screw clamp.
  • the external electrical protective conductor 20 may be sealed by a ring seal 24 in the interior (not shown) of a water heater to be performed.
  • the external electrical protective conductor 20 is therefore not primarily for connecting a plurality of elements of the Through-flow heater, but to provide a ground connection for the water heater.
  • FIG. 2 illustrates a further plan view of the connection device 2 with the base body 4 and a first clamping element 14.
  • the connection device 2 preferably has a printed circuit board connection body 26 with a further clamping element 28 corresponding to the first clamping element 14, wherein the clamping elements 14, 28 comprise one for receiving a protective conductor arranged terminal space 22 of the collection terminal 16 form.
  • the printed circuit board connection body 26 is preferably designed in one piece and electrically conductive.
  • the corresponding embodiment of the clamping elements 14, 28 is characterized in that they can interlock or grasp one another.
  • the clamping elements 14, 28 is in a surprisingly simple and secure way, an electrical contact between the external electrical protective conductor and the safety-relevant and / or functionally relevant elements of the water heater, such as pipes or a circuit board of the water heater, created.
  • the connecting device 2 is also designed to be particularly compact, since essential elements of the collection terminal 16 are formed by the clamping elements 14, 28.
  • the printed circuit board connection body 26 is connected at one end to the printed circuit board 60 and preferably has the corresponding clamping element 28 at another end.
  • the printed circuit board connection body 26 can also serve as an electrical connection element.
  • the base body 4 and the printed circuit board body 26 preferably each have corresponding clamping elements 14, 28, so that it is readily apparent to those skilled in the art how to form the connection for the contacting of the external electrical protective conductor.
  • a preferred embodiment of the connecting device 2 is characterized in that one of the clamping elements 14 or 28 is configured in a U-shaped cross-section and the corresponding clamping element 28 or 14 is designed in the manner of a clamping plate. If the two clamping elements 14, 28 are designed to correspond to one another, the two clamping elements 14, 28 can also be arranged one inside the other.
  • the clamping elements 14, 28 configured in this manner preferably form a clamping space 22 which is open on two sides 30, 32 and preferably rectangular in cross-section. Basically, the clamping space 22 has two or at least one open side 30 or 32. Through one of these open sides 30, 32 of the terminal space 22 of the external electrical protective conductor is inserted into the terminal space 22 to provide electrical contact to the base member 4 and / or the printed circuit board connector body 26.
  • connection device is characterized in that a screw 34 with the clamping elements 14, 28 is connected such that the clamping elements 14, 28 by means of the screw 34 are braced against each other.
  • a translational movement of the screw 34 connected to the clamping elements 14, 28 is caused by a rotation of the screw 34.
  • an external electrical protective conductor 20 is inserted into the terminal space 22 on the left or right of the screw 34, and if the clamping space 22 is reduced by turning the screw 34, the external electrical protective conductor 20 is clamped between the clamping elements 14, 28.
  • both clamping elements 14, 28 on a mutually aligned and / or corresponding bore 36 are mutually aligned and / or corresponding bore 36.
  • the connecting device 2 may further comprise a nut (not shown) in order to clamp the two clamping elements 14, 28 relative to one another by twisting the screw 34 relative to the nut.
  • a nut instead of the nut and one of the two clamping elements 14, 28 in the bore 36 have an internal thread, so that the two clamping elements 14,28 are also braced against each other by a rotation of the screw 34.
  • An external protective conductor accommodated by the clamping space 22 is likewise clamped in the event of distortion of the clamping elements 14, 28, so that the connecting device 2 forms a secure electrical contact and / or mechanical fixation of the external electrical protective conductor is set up and / or configured.
  • Each of the clamping brackets 6, 10 has two legs 38, 40 and 42, 44 which are spaced from each other.
  • the legs 38, 40 and 42, 44 preferably run parallel to each other.
  • particularly preferred is an arrangement in which the legs 38, 40 and 42, 44, starting from a connecting web 46 and 48 respectively slightly converge, whereby a higher holding force or clamping force can be realized.
  • connection device is further characterized in that the clamping brackets 6, 10 are each formed as a spring element.
  • the clamping brackets 6, 10 are each formed as a spring element.
  • a spring force of the spring elements of the respective clamping bracket 6, 10 for providing an electrical connection to the respective pipe, in particular to the first pipe 6 (not shown) and the corresponding second pipe 12 is formed.
  • the distance of the legs 38, 40 and 42, 44 also depends on the outer diameter of the pipe 12, to which the clamp is attachable.
  • the clamping brackets 6, 10 each have - in particular for forming an interference fit - adapted to the outer diameter of the corresponding pipe 12 leg distance, wherein it is particularly preferred that the leg distance is in each case smaller than the outer diameter of the respective pipe 12 ,
  • a further embodiment of the connecting device 2 is characterized in that at least one of the clamping brackets 6, 10 on at least one of the two legs 38, 40 and 42, 44 a recess (not shown) or a closure element (not shown) to form a snap closure having. This is a surprisingly simple and safe way a mechanical connection of the clamps 6, 10 ensures the respective pipe 12.
  • connection device 2 is characterized in that the base body 4 and / or the printed circuit board connection body 26 are formed as stamped and bent parts. Punched and bent parts offer the advantage that they can be manufactured particularly cost-effectively. Furthermore, stamped and bent parts can be made particularly simple in one piece.
  • Fig. 3 is a sectional view of a water heater 50 with the connecting device 2.
  • This is a water heater 50 for heating water, with a heating unit 52, the at least one inlet pipe 54 and at least one drain pipe 56 are assigned, the water heater 50 is characterized by the flow heater 50 has a connecting device 2 according to the invention.
  • the clamping elements 14, 28 of the central terminal space 22 for the contacting of the external electrical protective conductor 20 is formed.
  • Fig. 3 only one of many possible arrangements of at least one inlet pipe 54 and the at least one drain pipe 56 is shown, wherein the invention does not relate to the in Figure 3 limited arrangement shown.
  • the position of the at least one supply pipe 54 and the at least one discharge pipe 56 can be reversed.
  • one of the U-shaped clamping brackets 6, 10 is attached to at least one of the inlet pipes 54 and / or at least one of the drain pipes 56.
  • the water-carrying connection lines 54, 56 of a water heater are electrically connected to a protective conductor in a particularly simple manner.
  • connection device 2 (as such or in conjunction with the flow heater 50) is characterized in that the printed circuit board connection body 26 has a solder tail 58 or the like for connection to a printed circuit board 60 with an electrical circuit.
  • the connection of a printed circuit board 60 can be made cohesively and / or electrically conductive.
  • the solder tail 58 is soldered to the printed circuit board 60 and / or welded.
  • the circuit board connector body 26 is advantageously connected both electrically and mechanically to the circuit board 60.
  • the printed circuit board 60 and the at least one inlet pipe 54 and / or the at least one drain pipe 56 may be arranged to each other such that each of the pipes 54, 56 and the circuit board 60 electrically and mechanically connected clamping elements 14, 28 the clamping space 22nd form a multi-part collection terminal 16.

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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. Dispositif de connexion (2) pour chauffe-eau instantané, comprenant un corps de base (4) en une seule pièce, conducteur de l'électricité, qui présente un étrier de serrage en forme de U (6) destiné à s'emboîter sur une conduite (8) et au moins un autre étrier de serrage en forme de U (10) destiné à s'emboîter sur au moins une autre conduite (12), caractérisé en ce que le corps de base (4) présente un premier élément de borne (14) constituant une partie d'une borne collective en plusieurs pièces (16) à former, destinée à la mise en contact électrique centrale d'un conducteur électrique de protection externe (20).
  2. Dispositif de connexion (2) selon la revendication précédente, caractérisé en ce que le dispositif de connexion (2) présente un corps de connexion à plaquette à circuit imprimé (26) muni d'un autre élément de borne (28) correspondant au premier élément de borne (14), les éléments de borne (14, 28) formant une chambre de serrage (22) de la borne collective (16) conçue pour recevoir le conducteur de protection (20).
  3. Dispositif de connexion (2) selon la revendication précédente, caractérisé en ce qu'une vis (34) est reliée aux éléments de borne (14, 28) de façon telle que les éléments de borne (14, 28) peuvent être serrés l'un contre l'autre au moyen de la vis (34).
  4. Dispositif de connexion (2) selon l'une des revendications 2 ou 3 précédentes, caractérisé en ce qu'un des éléments de borne (14) a la forme d'un U en coupe transversale et en ce que l'élément de borne correspondant (28) est réalisé à la façon d'une plaque de serrage.
  5. Dispositif de connexion (2) selon l'une des revendications précédentes, caractérisé en ce que les étriers de serrage en forme de U (6, 10) sont disposés au moins sensiblement dans un même plan (X, Y).
  6. Dispositif de connexion (2) selon l'une des revendications 2 à 5 précédentes, caractérisé en ce que le corps de connexion à plaquette à circuit imprimé (26) présente une cosse à souder (58) destinée à la connexion à une plaquette (60) comportant un circuit électrique.
  7. Dispositif de connexion (2) selon l'une des revendications précédentes, caractérisé en ce que le corps de base (4) présente un autre élément de borne qui est associé à une prise externe pour permettre de connecter un conducteur de protection interne, ou à une borne de distribution en plusieurs pièces pour former une connexion de distribution.
  8. Chauffe-eau instantané (50) pour le chauffage de l'eau, comprenant une unité de chauffage (52) à laquelle sont associées au moins une conduite d'amenée (54) et au moins une conduite de descente, caractérisé en ce que le chauffe-eau instantané (50) présente un dispositif de connexion (2) selon l'une des revendications précédentes.
  9. Chauffe-eau instantané (50) selon la revendication précédente, caractérisé en ce que le chauffe-eau instantané (50) présente une plaquette à circuit imprimé (60), le corps de connexion (26) de la plaquette à circuit imprimé du dispositif de connexion (2) selon l'une des revendications 2 à 9 étant relié électriquement et/ou par continuité de matière à la plaquette à circuit imprimé (60).
  10. Chauffe-eau instantané (50) selon l'une des revendications 8 ou 9, caractérisé en ce que la plaquette à circuit imprimé (60), la conduite d'amenée (54), au moins au nombre de une, et/ou la conduite de descente (56), au moins au nombre de une, sont disposées les unes par rapport aux autres de telle sorte que les éléments de borne respectifs (14, 28) qui sont reliés électriquement et mécaniquement aux conduites (54, 56) ou à la plaquette à circuit imprimé (60) forment la chambre de serrage (22) de la borne collective en plusieurs pièces (16).
EP11155234.5A 2011-02-21 2011-02-21 Dispositif de raccordement pour un chauffe-eau instantané Active EP2489950B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL11155234T PL2489950T3 (pl) 2011-02-21 2011-02-21 Urządzenie przyłączeniowe do przepływowego ogrzewacza
EP11155234.5A EP2489950B1 (fr) 2011-02-21 2011-02-21 Dispositif de raccordement pour un chauffe-eau instantané
HK13102306.0A HK1176393A1 (zh) 2011-02-21 2013-02-22 連續流加熱器的連接設備

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11155234.5A EP2489950B1 (fr) 2011-02-21 2011-02-21 Dispositif de raccordement pour un chauffe-eau instantané

Publications (3)

Publication Number Publication Date
EP2489950A1 EP2489950A1 (fr) 2012-08-22
EP2489950A9 EP2489950A9 (fr) 2012-12-19
EP2489950B1 true EP2489950B1 (fr) 2015-09-30

Family

ID=44280710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11155234.5A Active EP2489950B1 (fr) 2011-02-21 2011-02-21 Dispositif de raccordement pour un chauffe-eau instantané

Country Status (3)

Country Link
EP (1) EP2489950B1 (fr)
HK (1) HK1176393A1 (fr)
PL (1) PL2489950T3 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510345A1 (de) * 1995-03-22 1996-09-26 Neubeck Elektrogeraete Gmbh Durchlauferhitzer
DE202004012263U1 (de) * 2004-08-05 2004-10-07 Stiebel Eltron Gmbh & Co. Kg Durchlauferhitzer
DE102004037965A1 (de) * 2004-08-05 2006-03-16 Stiebel Eltron Gmbh & Co. Kg Durchlauferhitzer

Also Published As

Publication number Publication date
EP2489950A1 (fr) 2012-08-22
PL2489950T3 (pl) 2016-02-29
EP2489950A9 (fr) 2012-12-19
HK1176393A1 (zh) 2013-07-26

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