EP0777248A2 - Relais électromagnétique et procédé d'ajustage du relais électromagnétique - Google Patents

Relais électromagnétique et procédé d'ajustage du relais électromagnétique Download PDF

Info

Publication number: EP0777248A2
Authority: EP; European Patent Office
Prior art keywords: spring; electromagnetic relay; load current; spring fixing; connection terminal
Prior art date: 1995-11-30
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

EP96118334A

Other languages

German (de)

English (en)

Other versions

EP0777248A3 (fr

EP0777248B1 (fr

Inventor

Wolfgang Hoffmann

André Dr. Körner

Maik Zimmer

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.)

Hella GmbH and Co KGaA

Original Assignee

Hella KGaA Huek and Co

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.)

1995-11-30

Filing date

1996-11-15

Publication date

1997-06-04

1996-11-15 Application filed by Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co

1997-06-04 Publication of EP0777248A2 publication Critical patent/EP0777248A2/fr

1998-09-23 Publication of EP0777248A3 publication Critical patent/EP0777248A3/fr

2004-03-31 Application granted granted Critical

2004-03-31 Publication of EP0777248B1 publication Critical patent/EP0777248B1/fr

2016-11-15 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
- H01H49/00—Apparatus or processes specially adapted to the manufacture of relays or parts thereof
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H2011/0087—Welding switch parts by use of a laser beam

Definitions

the invention relates to an electromagnetic relay according to the preamble of claim 1 and a method for adjusting the starting voltage of the electromagnetic relay.
Such a relay is known from DE 42 43 852 C2, a method for adjusting the starting voltage in such a relay being described in DE 42 43 854 C2.
the switch contact spring has a resilient connecting element which is displaced on a section of a connecting tongue by means of an adjusting plunger until the relay armature picks up when the intended tension is applied. Once this has taken place, the connecting element is fixed on the section of the connecting tongue by means of laser welding.
This method is very complex, since not only a costly laser system, but also a precisely working optical deflection device for controlling the laser beam is required and for controlling this deflection device the algorithmic connection between the irradiation point, the irradiation duration and the deformation achieved thereby are precisely known for the component to be adjusted got to.
This object is achieved in that the spring fixing area and the connection area of the load current connection terminal are designed to be flexible with respect to one another.
the bias can advantageously be achieved by simply bending the spring fixing area relative to the connection area of the load current connection terminal the flat form spring and thus the strength of the restoring spring force on the armature can be changed, whereby the pull-in voltage of the relay can be influenced in a simple manner.
connection area of the load current connection terminal can advantageously be designed as a flat plug.
emboss an embossing as a predetermined bending point in the load current connection terminal so that the bending takes place in a precisely defined direction.
a method for adjusting the tightening voltage is described in claim 5. It is particularly advantageous that this method is technically particularly simple, that the adjustment is carried out particularly quickly and that the adjustment can be carried out on the relay which has already been assembled.
Another advantage is that after the relay has been adjusted, it is guaranteed to pick up at the intended starting voltage. As a result, the range of the pull-in voltages of all relays of one type can be considerably restricted.
a type changeover of the production device with a suitably adjustable pull-in voltage can be achieved by simply changing the excitation voltages applied to the relay coils for adjustment.
the adjustment device itself can also be made quite simple.
the spring fixing area is bent relative to the connection area in a simple manner by means of a wedge-shaped adjusting punch or an adjusting punch which rotates.
FIG. 1 shows a relay according to the invention immediately before the tightening voltage is adjusted.
the relay consists of a base plate (1) on which a magnetic coil (2) is arranged. Around two sides of the magnetic coil (2) there is an approximately L-shaped yoke (3) which is riveted to the magnetic core (4).
a section of the armature (5) rests on an end face of the yoke (3).
the armature (5) is held by a flat spring (6) with which it is mechanically connected (riveted in this embodiment). Bent end sections (7) of the flat form spring (6) support the armature (5) against the yoke (3).
the flat form spring (6) also serves as a switch contact spring and as a return spring for the armature (5). It therefore carries two switch contacts (8a, 8b), one of which (8a) is in contact with the normally closed contact (9) and the other is opposite the normally open contact (10).
connection terminals connected to the contacts (8a, 8b, 9, 10) cannot be seen in FIG. 1, since they are designed as flat plugs which are passed through the side of the base plate (1) not shown in FIG. 1.
the bias of the return spring (also formed by the flat spring (6)) changes when the spring fixing area (11a) is shifted. This is done here by bending the spring fixing area (11a) by means of an adjusting plunger (12). If, for example, the spring fixing area (11a) is bent in the direction of the arrow (13), the restoring force of the flat form spring (6) on the armature (5) is reduced and the required minimum tightening tension shifts to lower values.
the actual adjustment process now proceeds as follows.
the relay is in mechanical abutment against a stop (14) and is also held by means of mechanical locking means (15).
the relay coil is (not shown in the figure) acted upon by the intended pull-in voltage and the connection terminals connected to the switch contact spring (flat form spring (6)) and the normally open contact (10) are connected to a current or resistance measuring device which detects the presence of the switch contact (8b ) registered at the make contact (10) and thus the successful tightening of the relay.
the wedge-shaped adjusting ram (12) now bends the spring fixing area (11a) until the relay picks up due to the decreasing preload of the flat form spring (6).
This adjustment process can be carried out fully automatically and very quickly, so that it is suitable for adjusting relays manufactured in very large numbers, since it does not increase the cycle times of relay production.
FIG. 2 illustrates the structure of the relay according to the invention on the basis of another view and shows further advantageous features.
the configuration of the load current connection terminal (11) is particularly clear here.
the flat form spring (6) is firmly connected to the load current connection terminal (11), specifically by means of a soldered or welded connection (16).
the load current connection terminal (11) forms a flat plug (17).
the spring fixing area (11a) and the connection area (11b) are separated from one another by a slot-shaped recess (18), which simplifies the bending of the spring fixing area (11a) by means of the adjusting stamp (12).
An embossing (19) serves as a predetermined bending point and ensures that the bending takes place in a defined manner. The formation of the slot as a closed slot ensures little springback when bending the load current connection terminal (11).
Electromagnetic relay and method for adjusting the pull voltage of the electromagnetic relay are Electromagnetic relay and method for adjusting the pull voltage of the electromagnetic relay

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Electromagnets (AREA)
Breakers (AREA)

EP96118334A 1995-11-30 1996-11-15 Relais électromagnétique et procédé d'ajustage du relais électromagnétique Expired - Lifetime EP0777248B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19544626		1995-11-30
DE19544626A DE19544626C2 (de)	1995-11-30	1995-11-30	Elektromagnetisches Relais und Verfahren zur Justierung der Anzugsspannung des elektromagnetischen Relais

Publications (3)

Publication Number	Publication Date
EP0777248A2 true EP0777248A2 (fr)	1997-06-04
EP0777248A3 EP0777248A3 (fr)	1998-09-23
EP0777248B1 EP0777248B1 (fr)	2004-03-31

Family

ID=7778797

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP96118334A Expired - Lifetime EP0777248B1 (fr)	1995-11-30	1996-11-15	Relais électromagnétique et procédé d'ajustage du relais électromagnétique

Country Status (4)

Country	Link
US (1)	US5864268A (fr)
EP (1)	EP0777248B1 (fr)
DE (2)	DE19544626C2 (fr)
ES (1)	ES2217296T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN100369176C (zh) *	2005-01-20	2008-02-13	厦门宏发电声有限公司	一种电磁继电器复原簧片及其动作电压的校正方法
US20080287808A1 (en) *	2006-09-12	2008-11-20	The General Hospital Corporation	Apparatus, probe and method for providing depth assessment in an anatomical structure
CN102592889B (zh) *	2012-03-07	2014-05-14	厦门宏发汽车电子有限公司	适合自动生产和导电性能可靠的电磁继电器及其装配方法
CN104538250B (zh) *	2015-02-03	2016-08-24	佛山市川东磁电股份有限公司	一种磁力开关

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3235714A1 (de)	1982-09-27	1984-03-29	Siemens AG, 1000 Berlin und 8000 München	Verfahren und vorrichtung zum justieren von kontaktfedern in einem relais
DE4243854C1 (de)	1992-12-23	1994-03-31	Hella Kg Hueck & Co	Verfahren zum Justieren verschiedener Komponenten eines Relais
DE4243852C1 (de)	1992-12-23	1994-03-31	Hella Kg Hueck & Co	Elektromagnetisches Relais

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1816364B2 (de) *	1968-12-21	1973-11-15	Westfaelische Metall Industrie Kg, Hueck & Co, 4780 Lippstadt	Elektromagnetisches Relais, ins besondere fur Kraftfahrzeuge
DE3406832C2 (de) *	1983-02-28	1985-11-21	Matsushita Electric Works, Ltd., Kadoma, Osaka	Klappankerrelais
DE3889947T2 (de) *	1987-03-06	1994-11-03	Takamisawa Electric Co	Elektromagnetisches Relais mit Vorrichtungen zur Herabsetzung des Geräusches.
EP0281950B1 (fr) *	1987-03-13	1992-08-05	Siemens Aktiengesellschaft	Relais électromagnétique
DE3841667C1 (fr) *	1988-12-10	1990-02-01	Robert Bosch Gmbh, 7000 Stuttgart, De
US5049844A (en) *	1990-05-16	1991-09-17	Beta Mfg. Co.	Enclosed electromagnetic relay
US5155458A (en) *	1991-11-04	1992-10-13	Gamble John G	Normally closed AC relay
JP2892230B2 (ja) *	1992-08-07	1999-05-17	アンデン株式会社	電磁継電器

1995
- 1995-11-30 DE DE19544626A patent/DE19544626C2/de not_active Expired - Fee Related
1996
- 1996-11-15 EP EP96118334A patent/EP0777248B1/fr not_active Expired - Lifetime
- 1996-11-15 ES ES96118334T patent/ES2217296T3/es not_active Expired - Lifetime
- 1996-11-15 DE DE59610951T patent/DE59610951D1/de not_active Expired - Lifetime
- 1996-11-22 US US08/754,112 patent/US5864268A/en not_active Expired - Lifetime

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3235714A1 (de)	1982-09-27	1984-03-29	Siemens AG, 1000 Berlin und 8000 München	Verfahren und vorrichtung zum justieren von kontaktfedern in einem relais
DE4243854C1 (de)	1992-12-23	1994-03-31	Hella Kg Hueck & Co	Verfahren zum Justieren verschiedener Komponenten eines Relais
DE4243852C1 (de)	1992-12-23	1994-03-31	Hella Kg Hueck & Co	Elektromagnetisches Relais

Also Published As

Publication number	Publication date
DE59610951D1 (de)	2004-05-06
EP0777248A3 (fr)	1998-09-23
EP0777248B1 (fr)	2004-03-31
DE19544626A1 (de)	1997-06-05
DE19544626C2 (de)	2002-10-02
ES2217296T3 (es)	2004-11-01
US5864268A (en)	1999-01-26

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