DE2050128B2 - ELECTRIC HOT WATER HEATER - Google Patents

ELECTRIC HOT WATER HEATER

Info

Publication number
DE2050128B2
DE2050128B2 DE19702050128 DE2050128A DE2050128B2 DE 2050128 B2 DE2050128 B2 DE 2050128B2 DE 19702050128 DE19702050128 DE 19702050128 DE 2050128 A DE2050128 A DE 2050128A DE 2050128 B2 DE2050128 B2 DE 2050128B2
Authority
DE
Germany
Prior art keywords
contactor
heating
contact
series
parallel
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.)
Granted
Application number
DE19702050128
Other languages
German (de)
Other versions
DE2050128C3 (en
DE2050128A1 (en
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 filed Critical
Priority to DE2050128A priority Critical patent/DE2050128C3/en
Publication of DE2050128A1 publication Critical patent/DE2050128A1/en
Priority claimed from US05/372,119 external-priority patent/US3961814A/en
Priority to US05/631,331 priority patent/US4043857A/en
Publication of DE2050128B2 publication Critical patent/DE2050128B2/en
Application granted granted Critical
Publication of DE2050128C3 publication Critical patent/DE2050128C3/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror
    • B29C65/2015—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror being a single welding mirror comprising several separate heating surfaces in different planes, e.g. said heating surfaces having different temperatures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • B29C66/12821—Stepped joint cross-sections comprising at least one overlap joint-segment comprising at least two overlap joint-segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52293—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being external
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52298—Joining tubular articles involving the use of a socket said socket being composed by several elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/63—Internally supporting the article during joining
    • B29C66/636—Internally supporting the article during joining using a support which remains in the joined object
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2009/00—Use of rubber derived from conjugated dienes, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0658—PE, i.e. polyethylene characterised by its molecular weight
    • B29K2023/0683—UHMWPE, i.e. ultra high molecular weight polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/18—Polymers of hydrocarbons having four or more carbon atoms, e.g. polymers of butylene, e.g. PB, i.e. polybutylene
    • B29K2023/22—Copolymers of isobutene, e.g. butyl rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2061/00—Use of condensation polymers of aldehydes or ketones or derivatives thereof, as moulding material
    • B29K2061/04—Phenoplasts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2096/00—Use of specified macromolecular materials not provided for in a single one of main groups B29K2001/00 - B29K2095/00, as moulding material
    • B29K2096/02—Graft polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0085—Copolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2696/00—Use of specified macromolecular materials not provided for in a single one of main groups B29K2601/00 – B29K2695/00, for preformed parts, e.g. for inserts
    • B29K2696/02—Graft polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings
    • B29L2031/243—Elbows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings
    • B29L2031/246—T-joints
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S285/00—Pipe joints or couplings
    • Y10S285/919—Resinous
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1005—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by inward collapsing of portion of hollow body
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49879—Spaced wall tube or receptacle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Control Of Resistance Heating (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

Arbeitskontakte 12, 22 durch die Schaltzeiten der Schütze noch offen ist und die Verbindung zum Netz unterbricht Der Haltestromkreis WlO des ersten Schützes liegt über die Parallelschaltung eines als Taster 7!4 ausgebildeten, willkürlich betätigbaren Kontaktes und eines Arbeitskontaktes 21 des zweiten Schützes 20 am Netz. Der Haltestromkreis //20 des zweiten Schützes 20 liegt über einem Arbeitskontakt 14 des ersten Schützes 10 und den Temperaturregler TR am Netz. Der Temperaturregler TR ist der Reihenschaltung der Heizwiderstände 1, 2 und dem Erregerstromkreis //20 des zweiten Schützes 20 vorgeschaltet.Working contacts 12, 22 is still open due to the switching times of the contactors and the connection to the mains is interrupted.The holding circuit WlO of the first contactor is connected to the mains via the parallel connection of a contact designed as a button 7! 4 and a working contact 21 of the second contactor 20. The holding circuit // 20 of the second contactor 20 is connected to the network via a working contact 14 of the first contactor 10 and the temperature controller TR . The temperature controller TR is connected upstream of the series connection of the heating resistors 1, 2 and the excitation circuit // 20 of the second contactor 20.

Mit dieser Schaltungsanordnung arbeitet das Gerät wie folgt:With this circuit arrangement, the device works as follows:

Wenn die Wassertemperatur unter einen Sollwert absinkt, schließt der Temperaturregler TR, so daß die Heizwiderstände 1, 2 reihengeschaltet sind. Damit ergibt sich bei einer Auslegung der Heizwiderstände 1,2 zu jeweils 2 kW eine Schwachheizung von 1 kW.When the water temperature falls below a set point, the temperature controller TR closes so that the heating resistors 1, 2 are connected in series. With a design of the heating resistors 1, 2 of 2 kW each results in a weak heating of 1 kW.

Zur Einschaltung der Starkheizung wird der Tastschalter TA betätigt. Das Schütz 10 zieht an, wobei dessen Ruhekontakt 13 geöffnet wird. Die Reihenschaltung der Heizwiderstände 1, 2 ist damit unterbrochen. Gleichzeitig schließt der Arbeitskontakt 14, so daß der Haltestromkreis //20 des zweiten Schützes 20 eingeschaltet wird. Beim Anzug des zweiten Schützes 20 schließt dessen Arbeitskontakt 21, so daß der Haltestromkreis HiQ des ersten Schützes 10 auch nach Loslassen des Tasters TA eingeschaltet bleibt Ober die Arbeitskontakte 12, 22 sind nunmehr die Heizwiderstände 1,2 eingeschaltet.To switch on the high-power heating, the TA pushbutton is actuated. The contactor 10 picks up, its normally closed contact 13 being opened. The series connection of the heating resistors 1, 2 is thus interrupted. At the same time the normally open contact 14 closes so that the holding circuit // 20 of the second contactor 20 is switched on. When the second contactor 20 closes, its working contact 21 closes so that the holding circuit HiQ of the first contactor 10 remains switched on even after the button TA is released . The heating resistors 1, 2 are now switched on via the working contacts 12, 22.

Die Starkheizung bleibt so lange eingeschaltet, bis der Temperaturregler TR öffnet und den Haltestromkreis H20 des zweiten Schützes unterbricht. Das zweite Schütz 20 fällt ab und unterbricht mit seinem Arbeitskontakt 21 den Haltestromkreis. HiO des ersten Schützes 10. Damit sind über den Ruhekontakt 13 die Heizwiderstände 1,2 wieder reihengeschaltet.The strong heating remains switched on until the temperature controller TR opens and interrupts the holding circuit H20 of the second contactor. The second contactor 20 drops out and interrupts the holding circuit with its normally open contact 21. HiO of the first contactor 10. This means that the heating resistors 1, 2 are connected in series again via the normally closed contact 13.

Der erfindungsgemäße Heizwasserbereiter ist auch zur Verwendung an dreiphasigen Netzen R. S, T geeignet In diesem Fall ist der Arbeitskontakt 22 über eine Brücke Bl an die Phase S und ein weiterer Heizwiderstand 3 über eine Brücke £8 und einen weiteren Arbeitskontakt 24 des zweiten Schützes 20 an die Phase Γ zuschaltbar. Die Verbidnung des Arbeitskontaktes 22 mit der Phase R wird durch Entfernung einer Brücke Bi unterbrochen.The heating water heater according to the invention is also suitable for use on three-phase networks R. S, T. In this case, the normally open contact 22 is connected to phase S via a bridge B1 and a further heating resistor 3 via a bridge 8 and a further normally open contact 24 of the second contactor 20 can be switched on to phase Γ. The connection of the normally open contact 22 to the phase R is interrupted by removing a bridge Bi .

Bei Zuschaltung der Starkheizung wird über den Arbeitskontakt 24 zusätzlich der Hei2:widerstand 3 in Betrieb genommen. Bei einer gleichmäßigen Ausbildung der Heizwiderstände 1, 2, 3 mit einer Heizleistung von jeweils 2 kW ergibt sich dann ein Leistungsunterschied zwischen Schwachheizung und Starkheizung von 1 :6. Dieses Verhältnis hat sich optimal herausgestellt.When the strong heating is switched on, the Hei2: resistance 3 in Put into operation. With a uniform design of the heating resistors 1, 2, 3 with a heating power of 2 kW each results in a power difference between low heating and high heating of 1: 6. This relationship has turned out to be optimal.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (2)

Patentansprüche:Patent claims: I. Elektrischer Heißwasserbereiter mit Stark- und Schwachheizung unter Verwendung eines einpoligen Temperaturreglers, der mit seinem Kontakt einerseits mit dem Schwachheizwiderstand und andererseits mit einem die Starkheizung steuernden Schütz in Reihe liegt das mittels eines handbetätigten Tasters eingeschaltet und durch SelbsthaJtrng gehalten wird, bis der Stromkreis durch den Temperaturregler unterbrochen wird, dadurch gekennzeichnet, daß zwei Heizwiderstände (1,2) vorgesehen sind, die bei Starkheizung parallel und bei Schwachheizung in Reihe geschaltet sind, wobei deren Umschaltung durch zwei Folgeschütze (10,20) erfolgt, daß bei einphasiger Speisung (R) die Reihenschaltung der beiden Heizwiderstände (1,2) und eines zwischen ihnen liegenden Ruhekontaktes (13) eines ersten Schützes (;0) zwischen zwei Leitern (R, MR) des Netzes liegt, daß der Reihenschaltung des zweiten Heizwiderstandes (2) und des Ruhekontaktes (13) ein Arbeitskontakt (Ϊ2) des ersten (10) oder eines zweiten Schützes (20) parallelgeschaltet ist, daß die Reihenschaltung des zweiten Heizwider-Standes (2) und eines Arbeitskontaktes (22) des Eweiten Schützes zwischen den zwei Leitern (R. Mp) des Netzes liegt und daß der Haltestromkreis (H20) des zweiten Schützes (20) über einen weiteren Arbeitskontakt (14) des ersten Schützes (10) und der Haltestromkreis des ersten Schützes (10) über den Taster (TA)zn das Netz zuschaltbar sind.I. Electric hot water heater with high and low heating using a single-pole temperature controller, which is in series with its contact on the one hand with the low heating resistor and on the other hand with a contactor that controls the high heating, which is switched on by means of a manually operated button and held by itself until the circuit breaks the temperature controller is interrupted, characterized in that two heating resistors (1,2) are provided, which are connected in parallel with strong heating and in series with weak heating, the switching of which is carried out by two subsequent contactors (10, 20) that with single-phase supply (R ) the series connection of the two heating resistors (1,2) and a break contact (13) between them of a first contactor (; 0) between two conductors (R, MR) of the network is that the series connection of the second heating resistor (2) and the Normally closed contact (13) a normally open contact (Ϊ2) of the first (10) or a second contactor (20) is connected in parallel that the series connection of the second heating resistor (2) and a working contact (22) of the Ewide contactor between the two conductors (R. Mp) of the network and that the holding circuit (H20) of the second contactor (20) can be connected to the network via a further working contact (14) of the first contactor (10) and the holding circuit of the first contactor (10) via the button (TA) are. 2. Elektrischer Heißwasserbereiter mit Stark- und Schwachheizung unter Verwendung eines einpoligen Temperaturreglers, der mit seinem Kontakt einerseits mit dem Schwachheizwiderstand und andererseits mit einem die Starkheizung steuernden Schütz in Reihe liegt, das mittels eines handbetätigten Tasters eingeschaltet und durch Selbsthaltung gehalten wird, bis der Stromkreis durch den Temperaturregler unterbrochen wird, dadurch gekennzeichnet, daß zwei Heizwiäerstände (1, 2) vorgesehen sind, die bei Starkheizung parallel und bei Schwachheizung in Reihe geschaltet sind, wobei deren Umschaltung durch zwei Folgeschütze (10,20) erfolgt daß bei mehrphasiger Speisung (R, S. T) die Reihenschaltung der beiden Heizwiderstände (1, 2) und eines zwischen ihnen liegenden Ruhekontaktes2.Electric hot water heater with high and low heating using a single-pole temperature controller, which is in series with its contact on the one hand with the low heating resistor and on the other hand with a contactor controlling the high heating, which is switched on by means of a manually operated button and held by self-locking until the circuit is interrupted by the temperature controller, characterized in that two Heizwiäerstands (1, 2) are provided, which are connected in parallel with strong heating and in series with weak heating, their switching is done by two sequential contactors (10, 20) that with multi-phase supply (R , S. T) the series connection of the two heating resistors (1, 2) and a normally closed contact between them (13) eines ersten Schützes (10) zwischen einem Phasenleiter (R) und dem Mittelpunktsleiter (Mp) des Netzes liegt, daß der Reihenschaltung des tweiten Heizwiderstandes (2) und des Ruhekontaktes (13) ein Arbeitskontakt (12) des ersten (10) oder eines zweiten Schützes (20) parallelgeschaltet ist. daß die Reihenschaltung des zweiten Heizwider-Standes (2) und eines Arbeitskontaktes (22) des tweiten Schützes zwischen dem Mittelpunktsleiter (Mp) und einem anderen Phasenleiter (S) des Netzes liegt daß der Haltestromkreis (W20) des zweiten Schützes (20) über einen weiteren Arbeitskontakt(13) of a first contactor (10) between a phase conductor (R) and the neutral conductor (Mp) of the network is that the series connection of the wide heating resistor (2) and the break contact (13) is a working contact (12) of the first (10) or a second contactor (20) is connected in parallel. that the series connection of the second heating resistor (2) and a working contact (22) of the wide contactor between the neutral point conductor (Mp) and another phase conductor (S) of the network is that the holding circuit (W20) of the second contactor (20) via a further working contact (14) des ersten Schützes (10) und der Haltestromkreis des ersten Schützes (10) über den Taster (TA) an das Netz zuschaltbar sind, und daß ein dritter Heizwiderstand (3) über einen weiteren Arbeitskontakt (24) des zweiten Schützes (20) an den dritten Phasenleiter (T) zuschaltbar ist.(14) of the first contactor (10) and the holding circuit of the first contactor (10) can be connected to the mains via the button (TA) , and that a third heating resistor (3) via a further working contact (24) of the second contactor (20 ) can be switched on to the third phase conductor (T) . Die Erfindung bezieht sich auf einen elektrischen Heißwasserbereiter mit Stark- und Schwachheizung gemäß Oberbegriff der Ansprüche 1 und 2.The invention relates to an electric hot water heater with high and low heating according to the preamble of claims 1 and 2. Ein solcher Heißwasserbereiter ist durch die Zeichnung SK 25-971 der Firma Dr. Stiebel-Werke GmbH bekannt Dort ist für die Schwachheizung ein an einer Phase liegender Heizwiderstand vorgesehen. Bei Starkheizung werden zwei weitere, an den anderen Phasen liegende Heizwiderstände durch das einzige Schaltschütz zugeschaltetSuch a hot water heater is illustrated by the drawing SK 25-971 from Dr. Stiebel-Werke GmbH known There a heating resistor located on a phase is provided for the weak heating. at Two more heating resistances, which are connected to the other phases, are intensified by the only one Contactor switched on Aus der US-PS 21 10 727 ist eine Heizeinrichtung mit zwei Heizwiderständen bekannt die mittels eines von Hand zu betätigenden, mechanischen Schalters in unterschiedlicher Schaltungsanordnung zwischen die einzelnen Leiter eines zwei- oder mehrphasigen Netzes, insbesondere in Serien- oder in Parallelschaltung gelegt werden können. Durch entsprechenden Aufbau derartiger Schalter läßt sich immer leicht erreichen, daß ein Serienstromkreis mit Sicherheit zuerst aufgetrennt ist, bevor die einzelnen Heizwiderstände an die Phasen in Parallelschaltung gelegt werden, so daß Kurzschlüsse oder Lichtbogen praktisch nicht auftreten können. Da aber ein derartiger Schalter für eine temperaturabhängige Abschaltung nicht geeignet ist, müßte ein zusätzlicher Thermostat vorgesehen werden. Ferner wäre die einfache und übliche Einschaltung der Starkheizung durch kurze Betätigung eines Druckknopfes nicht möglich.From US-PS 21 10 727 a heater is with two heating resistors known by means of a manually operated mechanical switch in different circuit arrangements between the individual conductors of a two- or multi-phase network, in particular can be laid in series or in parallel. By appropriate construction of such Switch can always be easily achieved that a series circuit is first disconnected with certainty, before the individual heating resistors are connected to the phases in parallel, so that short circuits or arcing practically cannot occur. But since such a switch for a temperature-dependent Shutdown is not suitable, an additional thermostat would have to be provided. Further would be the simple and usual activation of the high-power heater by briefly pressing a push button not possible. Schließlich sind bei einer bekannten Schalteinrichtung für temperaturgeregelte elektrische Heißwasserbereiter (deutsche Auslegeschrift 10 49510) zwei elektrische Heizwiderstände über zwei Quecksilberschalter für die Schwachheizung in Reihe und für die Starkheizung parallel schaltbar. Dabei müssen die Quecksilberschalter über mechanisch bewegte Stellglieder betätigt werden.Finally, in a known switching device for temperature-controlled electric hot water heaters (German Auslegeschrift 10 49510) two electrical heating resistors over two mercury switches for low heating in series and for high heating in parallel switchable. The Mercury switches are operated via mechanically moved actuators. Der Erfindung liegt die Aufgabe zugrunde, einen elektrischen Heißwasserbereiter der eingangs genannten Art so auszugestalten, daß eine Umschaltung der sowohl bei Stark- als auch bei Schwachheizung verwendbaren Heizwiderstände ohne Funktionsstörungen durch Lichtbogenkurzschlüsse möglich ist.The invention is based on the object of an electric hot water heater of the type mentioned at the beginning Kind of designed so that a switchover of both high and low heating usable heating resistors without malfunctions due to arc short circuits. Diese Aufgabe wird erfindungsgemäß durch die in den Ansprüchen 1 und 2 gekennzeichneten Merkmale gelöstAccording to the invention, this object is achieved by the features characterized in claims 1 and 2 solved Anhand der Zeichnung wird ein Ausführungsbeispiel der Erfindung näher beschrieben.An exemplary embodiment of the invention is described in more detail with reference to the drawing. Die Figur zeigt in schematischer Darstellung den Heizstromkreis eines nicht näher dargestellten Heißwasserspeichers. An dem durch eine Phase R und einen Mittelpunktsleiter Mp gebildeten Netz liegen die Heizwiderstände 1, 2 über einen Ruhekontakt 13 eines ersten Schützes 10 in Reihe. Der Reihenschaltung des ersten Heizwiderstandes !,einesTemperaturreglers 77? und des Ruhekontaktes 13 ist ein Arbeitskontakt 22 eines zweiten Schützes 20 parallelgeschaltet Der Reihenschaltung des zweiten Heizwiderstandes 2 und des Ruhekontaktes 13 ist ein Arbeitskontakt 12 des ersten Schützes parallelgeschaltet. Der ArbeitskontaktThe figure shows a schematic representation of the heating circuit of a hot water tank, not shown in detail. On the network formed by a phase R and a neutral conductor Mp , the heating resistors 1, 2 are connected in series via a break contact 13 of a first contactor 10. The series connection of the first heating resistor !, a temperature controller 77? and of the normally closed contact 13, a normally open contact 22 of a second contactor 20 is connected in parallel. A normally open contact 12 of the first contactor is connected in parallel to the series connection of the second heating resistor 2 and the normally closed contact 13. The working contact 12 kann ohne weiteres auch dem zweiten Schütz zugeordnet sein. Wichtig ist nur, daß der Ruhekontakt12 can easily be assigned to the second contactor. It is only important that the normally closed contact 13 dem ersten Schütz 10 und mindestens einer der Arbeitskontakte 12,22 dem zweiten Schütz zugeordnet ist. Dadurch ist mit Sicherheit vermieden, daß während der Öffnungszeit des Ruhekontaktes 13 der an diesem möglicherweise entstehende Lichtbogen einen Kurzschluß zwischen der Phase R und dem Mittelpunktsleiter Mp verursachen kann, weil mindestens einer der13 is assigned to the first contactor 10 and at least one of the working contacts 12,22 is assigned to the second contactor. Thereby it is avoided with certainty that during the opening time of the normally closed contact 13, the arc that may occur at this can cause a short circuit between the phase R and the neutral conductor Mp , because at least one of the
DE2050128A 1970-10-13 1970-10-13 Electric hot water heater Expired DE2050128C3 (en)

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DE2050128A DE2050128C3 (en) 1970-10-13 1970-10-13 Electric hot water heater
US05/631,331 US4043857A (en) 1970-10-13 1975-11-12 Method of joining plastic pipe

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DE2050128A DE2050128C3 (en) 1970-10-13 1970-10-13 Electric hot water heater
US05/372,119 US3961814A (en) 1969-10-21 1973-06-21 Method of joining plastic pipe
US05/631,331 US4043857A (en) 1970-10-13 1975-11-12 Method of joining plastic pipe

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