EP0319478B1 - Leiterplattenrelais - Google Patents

Leiterplattenrelais Download PDF

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Publication number
EP0319478B1
EP0319478B1 EP88810810A EP88810810A EP0319478B1 EP 0319478 B1 EP0319478 B1 EP 0319478B1 EP 88810810 A EP88810810 A EP 88810810A EP 88810810 A EP88810810 A EP 88810810A EP 0319478 B1 EP0319478 B1 EP 0319478B1
Authority
EP
European Patent Office
Prior art keywords
armature
relay
spring
shaped
limbs
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
EP88810810A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0319478A2 (de
EP0319478A3 (en
Inventor
Hans A. Diem
Afro Cecchini
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.)
Nokia Solutions and Networks Schweiz AG
Original Assignee
Alcatel STR AG
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 Alcatel STR AG filed Critical Alcatel STR AG
Priority to AT88810810T priority Critical patent/ATE96575T1/de
Publication of EP0319478A2 publication Critical patent/EP0319478A2/de
Publication of EP0319478A3 publication Critical patent/EP0319478A3/de
Application granted granted Critical
Publication of EP0319478B1 publication Critical patent/EP0319478B1/de
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
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/24—Parts rotatable or rockable outside coil
    • H01H50/28—Parts movable due to bending of a blade spring or reed
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5805—Connections to printed circuits

Definitions

  • the present invention relates to a circuit board relay according to the preamble of the first claim.
  • circuit board relays which have in common that they must not exceed a certain height from the circuit board so that circuit boards with relays mounted thereon can be arranged next to one another with a standardized distance from one another.
  • MT2 circuit board relay
  • This previously known relay has two changeover contacts with specific performance data and is designed for low power consumption of the excitation winding in order to serve as the output stage of integrated circuits.
  • the relay shown in the drawing is a folding armature circuit board relay with "dual-in-line" pin assignment, i.e. all connections are arranged in the base area of a cuboid along its long sides, normalized distances being maintained both between the two rows of connections and between the individual connections.
  • Fig. 1 shows a vertical section through the relay according to the invention along the axis of its excitation coil. From this it can be seen that the present relay essentially has three main parts, namely an actuation system 1, a spring set 2 and a relay base 3. Not shown is a cuboid cover with which the relay can be hermetically sealed in order to define conditions for the contacts throughout the lifetime of the relay.
  • the hermetic seal of the joint between the cover and relay base 3 and the passage of the connections in the relay base can be carried out with the help of a hardening casting resin that is applied to the floor at two points and is distributed over channels suitably arranged in the floor as a result of capillary action, e.g. is described in detail in CH-625 381.
  • the actuation system 1 shown in FIG. 2 before assembly with the spring set 2 and the relay base 3 consists of an excitation coil 11 wound on a coil former 10, an E-shaped magnet yoke 12 and a U-shaped armature 13, which is used with the aid of an armature return spring Acting hinge spring 14 is held and positively connected to a slide 15 which transmits the armature movement to the contacts.
  • the coil body 10 is the actual framework of the relay, in that in addition to the excitation coil 11, it also receives the middle leg of the magnetic yoke 12, guides the slide 15 with the aid of recesses 18 and limits its stroke and thus the armature stroke, bearing surfaces for the spring set 2 defines bolt-like Has projections 16 on the underside for precise positioning and fixing of the relay base 3 with an intermediate contact set 2, and on the top has bolt-like projections 17 for exact positioning and fixing of the hinge spring 14. Furthermore, connection lugs 19 are held in the coil body 10, at the upper ends of which the wire ends of the excitation coil 11 are connected. To When the coil is wound, these upper ends are bent toward the coil axis, as can be seen from FIGS. 3 and 4, in order to achieve strain relief for the connecting wires of the excitation coil.
  • the present relay has four adjacent changeover contacts, one of which is shown in section in FIG. 1 and the structure of which is basically the same as that of the two changeover contacts of the known relay mentioned in the introduction.
  • the spring set 2 has only one plastic part, in which the normally closed contacts 20 and the changeover springs 21 and their leads are held on the connecting tabs, while the working contacts 31 and their connecting tabs are held in the relay base 3.
  • the present relay is wider than the previously known relay, but it has the same overall length, which means that the distance between the connection tabs is halved compared to that of the known relay.
  • the movable ends 22 of the changeover springs 20 are moved by the aforementioned slide 15 when the relay is excited from the rest position to the working position.
  • the shape of the slide 15 is particularly visible in FIG. 3.
  • Two arms 15.2 extend upward from a crossbeam 15.1, the lower edge of which can act on the four changeover springs. These arms have bevels 15.3 at the upper ends on the inside, with recesses 15.4 adjacent to them, which are shaped in such a way that a protruding tongue 13.1 of the armature can be snapped onto the slide 15 under the spring action of the arms 15.2.
  • This also has recesses 13.3, which are clearly visible in FIG. 4.
  • the crossbar 15.1 of the slide 15 is guided at both ends through recesses 18 (FIGS. 1 and 3) in the coil body 10. These recesses are shaped so that they also serve to limit the armature stroke when the relay is not energized.
  • the armature 13 is held by means of an articulated spring 14.
  • This hinge spring has an H-shaped outline with greatly shortened upper legs, as can be seen from FIG. 4.
  • the relay function only serve the two vertical legs of the H, while the cross-connection is only intended to make production and assembly easier, ie two individual, identical-shaped leaf springs could also be used.
  • the two legs of the articulated spring 14, which serve the relay function are each connected at one end, as usual, to the corresponding legs of the U-shaped armature 13, but not at the other end, as is customary in the prior art, with the two outer legs of the E-shaped yoke 12, but with bolt-shaped projections 17 of the coil body 10.
  • the other ends of the legs of the articulated spring 14 have holes 14.2 to be pressed onto the bolt-shaped projections 17 to be, so that there is a non-positive connection between the hinge spring 14 and bolt 17, the conical part of these projections serves as an insertion aid and can be formed into a rivet head after pressing, so that a positive connection is additionally created.
  • the legs of the hinge spring 14 are approximately as long as the legs of the armature 13 together with the projecting end 13.1.
  • This construction allows on the one hand long legs of the armature 13, which cover the corresponding legs of the yoke 12 to about 2/3 of their length and thus ensure a low magnetic resistance of the yoke / armature circuit, and on the other hand long legs of the hinge spring 15, which too a low mechanical load and thus leads to the desired high number of operating cycles of the relay without spring break.
  • the hinge spring 14 has a bend to bias this spring.
  • the location of this bend and its extent is chosen so that the edge pressure of the edge 13.2 of the armature 13 resting on the legs of the yoke 12 in the rest state is minimal and the restraining force acting on the armature is large enough that the armature 13 is defined even under impact stress Size not moved into the working position.
  • the legs of the articulated spring 14 are provided with recesses 14.1.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Selective Calling Equipment (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Control Of Electric Motors In General (AREA)
  • Burglar Alarm Systems (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP88810810A 1987-11-30 1988-11-25 Leiterplattenrelais Expired - Lifetime EP0319478B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810810T ATE96575T1 (de) 1987-11-30 1988-11-25 Leiterplattenrelais.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4650/87A CH674431A5 (id) 1987-11-30 1987-11-30
CH4650/87 1987-11-30

Publications (3)

Publication Number Publication Date
EP0319478A2 EP0319478A2 (de) 1989-06-07
EP0319478A3 EP0319478A3 (en) 1990-04-25
EP0319478B1 true EP0319478B1 (de) 1993-10-27

Family

ID=4280081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810810A Expired - Lifetime EP0319478B1 (de) 1987-11-30 1988-11-25 Leiterplattenrelais

Country Status (5)

Country Link
US (1) US4914410A (id)
EP (1) EP0319478B1 (id)
AT (1) ATE96575T1 (id)
CH (1) CH674431A5 (id)
DE (1) DE3885246D1 (id)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19715913C1 (de) * 1997-04-16 1998-10-08 Eh Schrack Components Ag Elektromagnetisches Relais

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE142046T1 (de) * 1992-05-15 1996-09-15 Siemens Ag Polarisiertes leistungsrelais
JP3545650B2 (ja) * 1999-07-27 2004-07-21 日本エイ・シィ・アール株式会社 電磁装置及びその駆動回路

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH452704A (de) * 1965-12-28 1968-03-15 Standard Telephon & Radio Ag Miniaturrelais
DE1564690B2 (de) * 1966-08-18 1972-09-07 Siemens AG, 1000 Berlin u 8000 München Ungepoltes flachrelais in miniaturbauweise
US4122420A (en) * 1977-01-13 1978-10-24 Esterline Electronics Corporation Permissive-make electromagnetic switch
CH625381A5 (id) * 1977-12-02 1981-09-15 Standard Telephon & Radio Ag
GB2016211B (en) * 1978-02-28 1982-05-26 Nippon Electric Co Flat electromagnetic relay
AT357624B (de) * 1978-04-17 1980-07-25 Itt Austria Elektromagnetisches relais mit zwangsgefuehrten kontakten
JPS6032221A (ja) * 1983-07-30 1985-02-19 松下電工株式会社 交流駆動型電磁継電器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
STR-REPORT, Jg. 5, Nr. 2, November 1084, S. 19-24, Zürich; W. Kälin, "MT-Relais - ein Leiterplattenrelais mit 'dual-in-line'-Anschlussbelegung" *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19715913C1 (de) * 1997-04-16 1998-10-08 Eh Schrack Components Ag Elektromagnetisches Relais
US5894254A (en) * 1997-04-16 1999-04-13 Eh Schrack Components Ag Electromagnetic relay

Also Published As

Publication number Publication date
US4914410A (en) 1990-04-03
ATE96575T1 (de) 1993-11-15
DE3885246D1 (de) 1993-12-02
CH674431A5 (id) 1990-05-31
EP0319478A2 (de) 1989-06-07
EP0319478A3 (en) 1990-04-25

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