EP1003190B1 - Durchlauferhitzer zum Erwärmen von Wasser - Google Patents

Durchlauferhitzer zum Erwärmen von Wasser Download PDF

Info

Publication number: EP1003190B1
Authority: EP; European Patent Office
Prior art keywords: conductor; connecting bolt; loop; flow heater; solder
Prior art date: 1998-11-17
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)

French (fr)

Other versions

EP1003190A2 (de

EP1003190A3 (de

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.)

1998-11-17

Filing date

1999-10-28

Publication date

2006-06-07

1999-10-28 Application filed by Braun GmbH filed Critical Braun GmbH

2000-05-24 Publication of EP1003190A2 publication Critical patent/EP1003190A2/de

2002-09-25 Publication of EP1003190A3 publication Critical patent/EP1003190A3/de

2006-06-07 Application granted granted Critical

2006-06-07 Publication of EP1003190B1 publication Critical patent/EP1003190B1/de

2019-10-28 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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)
Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
External Artificial Organs (AREA)
Branch Pipes, Bends, And The Like (AREA)
Surgical Instruments (AREA)
Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

EP99121461A 1998-11-17 1999-10-28 Durchlauferhitzer zum Erwärmen von Wasser Expired - Lifetime EP1003190B1 (de)

Applications Claiming Priority (2)

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

Publications (3)

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

Family

ID=7888009

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP99121461A Expired - Lifetime EP1003190B1 (de)	1998-11-17	1999-10-28	Durchlauferhitzer zum Erwärmen von Wasser

Country Status (5)

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

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.-
CN117912516A (zh) *	2017-09-06	2024-04-19	株式会社半导体能源研究所	半导体装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE676466A (da) *
AT173569B (de) *	1951-11-23	1953-01-10	Friedrich Josef Troezmueller	Thermosicherung für elektrisch geheizte Geräte
NL121181C (da) *	1958-11-03
NL6509799A (da) *	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

1998
- 1998-11-17 DE DE19852886A patent/DE19852886A1/de not_active Withdrawn
1999
- 1999-10-28 DK DK99121461T patent/DK1003190T3/da active
- 1999-10-28 AT AT99121461T patent/ATE329365T1/de active
- 1999-10-28 DE DE59913516T patent/DE59913516D1/de not_active Expired - Lifetime
- 1999-10-28 EP EP99121461A patent/EP1003190B1/de not_active Expired - Lifetime
- 1999-11-02 US US09/431,827 patent/US6250259B1/en not_active Expired - Fee Related

Also Published As

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

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