EP1003190B1 - Chauffe-eau pour chauffer de l'eau - Google Patents

Chauffe-eau pour chauffer de l'eau Download PDF

Info

Publication number
EP1003190B1
EP1003190B1 EP99121461A EP99121461A EP1003190B1 EP 1003190 B1 EP1003190 B1 EP 1003190B1 EP 99121461 A EP99121461 A EP 99121461A EP 99121461 A EP99121461 A EP 99121461A EP 1003190 B1 EP1003190 B1 EP 1003190B1
Authority
EP
European Patent Office
Prior art keywords
conductor
connecting bolt
loop
flow heater
solder
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
Application number
EP99121461A
Other languages
German (de)
English (en)
Other versions
EP1003190A3 (fr
EP1003190A2 (fr
Inventor
Volker Herz
Andreas Birk
Karl-Heinz Kamprath
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.)
Braun GmbH
Original Assignee
Braun GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Braun GmbH filed Critical Braun GmbH
Publication of EP1003190A2 publication Critical patent/EP1003190A2/fr
Publication of EP1003190A3 publication Critical patent/EP1003190A3/fr
Application granted granted Critical
Publication of EP1003190B1 publication Critical patent/EP1003190B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material

Definitions

  • the present invention relates to a water heater for heating water for domestic use according to the preamble of claim 1.
  • Such a flow heater with a safety device is described in DE-196 05 187 A1 and is e.g. used in coffee and tea machines.
  • a safety switch which interrupts the power supply of the household appliance in temperature limit case and in case of failure in cooperation with the temperature controller.
  • this temperature fuse is sufficient to the device, for. in case of failure of the temperature controller, which is usually equipped with a bimetal to disconnect from the electrical supply.
  • a short circuit occurs in an unfavorable phase position and defective temperature controller, such that Schuleiter Schemee a tubular heater are electrically connected to a protective conductor, then an uncontrolled heating of the tubular heater can take place and lead to endangering the environment.
  • a thermal fuse is described in the aforementioned DE 196 05 187 A1, in which a standing under mechanical bias, by melting the solder dissolving conductor interrupts the power supply to the tubular heater of the water heater.
  • the above-mentioned solution requires a special, the soldering bearing connecting element to the terminal bolt of the tubular heater.
  • the connecting element consists of a flat soldering shoe, which establishes a solid connection from the connecting bolt to the conductor with the assistance of the solder through the larger soldering surface.
  • the application of such a connecting element leads to increased manufacturing costs, in particular, the soldering must be flat and wide. This is a problem with a round and relatively thin wire.
  • the invention can be used particularly advantageously with conductors which are round in cross-section (claim 2). But there are also oval, rectangular or otherwise designed as a cross-section connecting bolts possible, are adapted to the outer surface of the course of the conductor end substantially over one or more sections.
  • a round or oval wire provides a partially completely closed connection surface on the connecting bolt.
  • the conductor is designed according to claims 3 and 4.
  • solder joint at a sufficient distance from the end of the connecting bolt in Direction of the heating element is arranged and the conductor does not exceed the end of the connecting bolt.
  • the flow heater 22 consists of a water pipe 20 with which a heating element 30 is in close thermal contact. As can be seen from Fig. 1, protrude from the heating element 30 with the electrical insulation 31 and 32 surrounded, circular in cross-section connecting bolts 12 and 14, which are connected to the insulator embedded in the heating element 30 heating wires (not shown).
  • the safety device consists of the conductor 1, which is fixedly attached to a first connection point 40 of a heater 24 fixed to the flow heater 22 at the point 21 thermoregulator. The thermoregulator 24 controls the temperature of the water heater 22. About the connection point 40 and the power supply from the controller 24 via the conductor 1 to the connecting pin 12 and thus guided to the heating wire.
  • FIG. 1 The consisting of a spring wire conductor 1 is provided in FIG. 1 in its course with a U-shaped deformation 41; their meaning is shown in detail in the aforementioned DE-196 05 187 A1,
  • connection point 10 For the connection of the conductor 1 with the heating element 30 of the connecting bolt 12 is provided with a second connection point 10, as shown in Figures 1 to 4. At this connection point 10 towards the conductor 1 is resiliently pressed during manufacture and soldered over a large area by solder, but this is only hinted at in Fig. 2.
  • both states of the conductor 1 are shown, ie the soldered to the terminal pin 12 by solder 15 state of the conductor 1 and the separate from the terminal pin 12 and wegbewegte state of the conductor 1 '.
  • two states of the conductor 1 are shown, but only the voltage applied to the terminal pin 12 conductor 1 before the soldering and the remote from the terminal pin 12 conductor 1 '
  • the end 23 of the conductor 1 is formed flat by the loop-shaped shaping, so that a sufficiently large, defined area 11 to be wetted by the solder 15 (FIG. 3) is formed, which is additionally assisted by that the contact surfaces (not shown) at the connection point 10, that is, that of the conductor 1 and that of the connecting bolt 12, match in contour and lie flush against each other.
  • the solder 15 is not shown.
  • the simple and manufacturing technology favorably designed shaping of the conductor 1 is shown on an enlarged scale, with which a surface 11 can span, which allows the safe, predetermined flow of the solder 15 and a reliable large-area connection between the conductor. 1 and the connecting pin 12 guaranteed.
  • the conductor 1 is bent at the affected end to a loop 13 which encloses the space 11, as shown in FIG. 3. It can be seen in particular from Fig. 4, that the two parallel to the terminal pin 12 extending legs 131 and 132 will lead to a secure solder joint, if on the facing surfaces 11 of the legs 131 and 132 and the terminal bolt 12 Lot 15 adheres (not shown ).
  • the exact determination of the shape of the loop 13 is made taking into account the dimensions of the components, ie the respective diameter (wire) and other dimensions.
  • the shape of the loop 13 is, as can also be seen, so chosen running upward that an accidental snagging with the connecting pin 12 is reliably prevented.
  • in particular also serves the substantially transversely to the connecting pin 12 upwardly extending loop end 135, which is returned to the loop beginning 134.
  • the length of the conductor 1 is selected so that the loop 13 ends in front of the free end of the connecting bolt 12 so as not to be able to reach under the depression of the conductor 1 with the connecting web 133 in this case. This is necessary in particular in automated production in order to prevent under hooking of the loop 13 under the connecting bolt 12.
  • the loop 13 is formed in size so that the conductor 1 with the loop 13 does not exceed the end of the connecting bolt 12, as shown in all figures.
  • the solder (not shown) flows into the gap formed between the loop 13 and the connecting bolt 12.
  • the diameter of the connecting web 133 is slightly larger than the diameter of the connecting bolt 12th

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Resistance Heating (AREA)
  • Cookers (AREA)
  • Surgical Instruments (AREA)
  • External Artificial Organs (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Claims (6)

  1. Réchauffeur continu (22) servant à chauffer de l'eau pour les besoins ménagers, comportant un conducteur conduisant du courant (1) qui est soudé par une extrémité à un point de raccordement (10) par soudure (15) pour former un point de soudure (16),
    caractérisé en ce que
    le point de raccordement (10) est constitué par un goujon de raccordement (12) et que l'extrémité (23) à souder au goujon de raccordement (12) du conducteur (1) est adaptée sensiblement, dans une ou plusieurs zones partielles, au contour extérieur du goujon de raccordement (12).
  2. Réchauffeur continu selon la revendication 1,
    caractérisé en ce que
    le goujon de raccordement (12) est réalisé en forme circulaire dans sa section transversale
  3. Réchauffeur continu selon la revendication 2,
    caractérisé en ce que
    le conducteur (1) est recourbé en forme de boucle à son extrémité à souder (23) et que la surface à recouvrir par la soudure (15) est limitée par la boucle.
  4. Réchauffeur continu selon la revendication 3,
    caractérisé en ce que
    le façonnage en forme de boucle du conducteur (1) est établi de manière à ce que deux branches (131, 132) de la boucle (13) s'étendent parallèlement à l'axe longitudinal du goujon de raccordement (12) et empêchent un accrochage au goujon de raccordement (12).
  5. Réchauffeur continu selon une des revendications précédentes,
    caractérisé en ce que
    le point de soudure (16) est disposé à une distance suffisante du goujon de raccordement (12) en direction de l'élément de chauffage (30) et que le conducteur (1) ne dépasse pas de l'extrémité du goujon de raccordement (12).
  6. Réchauffeur continu selon la revendication 1,
    caractérisé en ce que
    le conducteur (1) est maintenu en plus par une première extrémité, sous précontrainte mécanique, à un autre point de raccordement fixe (40) et que le conducteur (1), en cas d'anomalie, en cas de surchauffe du réchauffeur continu (22), s'éloigne en défaisant le point de soudure (16) en raison de la précontrainte du deuxième point de raccordement (10), ce qui interrompt le circuit de courant.
EP99121461A 1998-11-17 1999-10-28 Chauffe-eau pour chauffer de l'eau Expired - Lifetime EP1003190B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19852886 1998-11-17
DE19852886A DE19852886A1 (de) 1998-11-17 1998-11-17 Sicherheitseinrichtung für ein Wärmegerät

Publications (3)

Publication Number Publication Date
EP1003190A2 EP1003190A2 (fr) 2000-05-24
EP1003190A3 EP1003190A3 (fr) 2002-09-25
EP1003190B1 true EP1003190B1 (fr) 2006-06-07

Family

ID=7888009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99121461A Expired - Lifetime EP1003190B1 (fr) 1998-11-17 1999-10-28 Chauffe-eau pour chauffer de l'eau

Country Status (5)

Country Link
US (1) US6250259B1 (fr)
EP (1) EP1003190B1 (fr)
AT (1) ATE329365T1 (fr)
DE (2) DE19852886A1 (fr)
DK (1) DK1003190T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10313861A1 (de) * 2003-03-21 2004-09-30 Bleckmann Gmbh Vormontierte Anschlussbaugruppe
KR101014716B1 (ko) 2003-12-02 2011-02-16 엘지전자 주식회사 커피 메이커 겸용 전자 레인지의 히터 어셈블리
JP4522752B2 (ja) * 2004-06-10 2010-08-11 三菱電機株式会社 半田付けによる端子接合方法
ITVE20060016U1 (it) * 2006-05-18 2007-11-19 Irca Spa Elemento riscaldante.-
JP7112410B2 (ja) * 2017-09-06 2022-08-03 株式会社半導体エネルギー研究所 半導体装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE676466A (fr) *
AT173569B (de) * 1951-11-23 1953-01-10 Friedrich Josef Troezmueller Thermosicherung für elektrisch geheizte Geräte
NL244986A (fr) * 1958-11-03
NL6509799A (fr) * 1965-07-29 1967-01-30
DE1515624B1 (de) * 1965-08-24 1970-04-09 Vitrohm Gmbh Co Kg Elektrischer Widerstand mit Schmelzsicherung
DE8536338U1 (de) * 1985-12-23 1986-03-27 Elpag Ag Chur, Chur Elektrischer Druchlauferhitzer
DE3637378A1 (de) * 1986-11-03 1988-05-05 Braun Ag Elektrischer durchlauferhitzer fuer geraete des persoenlichen bedarfs
DE3930819A1 (de) * 1988-07-29 1991-03-28 Siemens Ag Schmelzsicherung mit federarm
CN2073792U (zh) * 1990-06-09 1991-03-27 顾福元 多功能工具
KR920007514Y1 (ko) * 1990-12-24 1992-10-15 동아전기부품 주식회사 모우터의 회전속도 조정용 저항기
DE4116618A1 (de) * 1991-05-22 1992-11-26 Braun Ag Durchlauferhitzer fuer eine maschine zur herstellung von bruehgetraenken
DE19505621A1 (de) * 1995-02-18 1996-08-22 Ego Elektro Blanc & Fischer Übertemperatursicherung für elektrische Heizeinrichtung
DE19605187A1 (de) * 1996-02-13 1997-08-14 Braun Ag Sicherheitseinrichtung

Also Published As

Publication number Publication date
US6250259B1 (en) 2001-06-26
EP1003190A3 (fr) 2002-09-25
EP1003190A2 (fr) 2000-05-24
DE59913516D1 (de) 2006-07-20
DK1003190T3 (da) 2006-10-02
DE19852886A1 (de) 2000-05-25
ATE329365T1 (de) 2006-06-15

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