EP1463080B1 - Procédé de fabrication d'un relais électromagnétique et un relais électromagnétique - Google Patents

Procédé de fabrication d'un relais électromagnétique et un relais électromagnétique Download PDF

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Publication number
EP1463080B1
EP1463080B1 EP04005045A EP04005045A EP1463080B1 EP 1463080 B1 EP1463080 B1 EP 1463080B1 EP 04005045 A EP04005045 A EP 04005045A EP 04005045 A EP04005045 A EP 04005045A EP 1463080 B1 EP1463080 B1 EP 1463080B1
Authority
EP
European Patent Office
Prior art keywords
contact
armature
spring
relay
yoke
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
EP04005045A
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German (de)
English (en)
Other versions
EP1463080A1 (fr
Inventor
Ralf Hoffmann
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.)
TE Connectivity Germany GmbH
Original Assignee
Tyco Electronics AMP 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 Tyco Electronics AMP GmbH filed Critical Tyco Electronics AMP GmbH
Priority to EP04005045A priority Critical patent/EP1463080B1/fr
Publication of EP1463080A1 publication Critical patent/EP1463080A1/fr
Application granted granted Critical
Publication of EP1463080B1 publication Critical patent/EP1463080B1/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
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0056—Apparatus or processes specially adapted for the manufacture of electric switches comprising a successive blank-stamping, insert-moulding and severing operation
    • 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

Definitions

  • the invention relates to a method for manufacturing a relay unit and a relay unit.
  • Electromagnetic relays are used in various technical fields, in particular in motor vehicle technology.
  • the development and manufacture of the relay is subject to a high cost pressure, so that a simplification of the structure and a cost-effective production of the relay is sought.
  • the construction of the relays requires precise dimensions to be met for precise operation. For example, it is necessary that the switch contacts, with which an electrically conductive connection between two contact terminals is made, have a predetermined distance. This determines the switching behavior of the relay.
  • the position of the armature, which actuates a switching contact is also defined precisely in the relay. Anchors are held, for example via spring elements on the relay, so that their geometry and position is precisely observed.
  • a generic method for producing an electromagnetic relay is known, which is formed from two half-shells.
  • a first half shell is formed by molding a coil with a U-shaped core.
  • the second half-shell is formed by encapsulation of a spring carrier and at least one spring contact element.
  • On the spring carrier a contact spring is attached with a flat anchor.
  • a method for producing a relay unit in which electrical contacts of the relay are provided in the form of a stamped grid and a housing is molded onto the stamped grid. Subsequently, the peripheral frame of the stamped grid is removed and it is obtained a base plate with injected contacts of the relay unit. In the base plate, a solenoid coil is inserted with yoke and then closed the unit with a lid.
  • the object of the invention is to provide a simple method for producing a relay unit and a simple relay in which the yoke and the switch contacts are precisely adjusted to each other.
  • the object of the invention is achieved by the method according to claim 1 and by the relay according to claim 7.
  • An advantage of the method according to the invention is that an exact position between the yoke and the switch contacts is set in a single encapsulation process.
  • the first and the second switching contact connection connected to each other via a connecting piece during the extrusion process.
  • the connecting piece is arranged outside the relay unit produced during the encapsulation, so that the connecting piece can be disconnected from the two switching contacts after the encapsulation process and, as a result, separate switch contacts are obtained. This allows an exact positioning of the yoke with respect to two switching contacts and also an exact positioning of the two switching contacts to one another.
  • the yoke is formed as part of a first carrier tape and the switch contacts as part of a second carrier tape.
  • the second switching contact is encapsulated during extrusion coating, which is also part of the second carrier tape. Due to the design of the second switching contact as part of the second carrier tape, it is not necessary to additionally hold a third carrier tape during the overmolding process. This offers advantages in particular in that two carrier bands can be arranged on opposite sides of the relay unit without disturbing each other. Although it would be possible to arrange two carrier tapes on one side of the relay unit during the overmolding process, this would make increased demands on the structure of the holding and transport systems of the carrier tapes, since the available space would be cramped.
  • the relay according to the invention has a simple and inexpensive to manufacture structure.
  • the carrier tapes preferably have, for example, holding holes over which the carrier tapes are precisely guided.
  • a thin cover of the yoke can be made in the bearing surfaces of the armature. This sets a defined air gap between the yoke and the armature.
  • the second switching contact is arranged parallel and under a second leg of the yoke.
  • the second switching contact protrudes beyond both ends of the leg, wherein one end of the second switching contact is a contact surface for connecting a contact spring and the second end is led out of the relay unit.
  • the anchor is substantially formed as a rectangular plate which is supported by a contact and spring plate on three sides of the plate.
  • the Federblech Division is guided on an upper side of the plate, and folded around the plate to the bottom and preferably with the anchor by e.g. Riveting or welding connected.
  • a contact piece extends substantially perpendicular to the alignment of the spring piece parallel to the arrangement of the armature. In this way, a good support between the armature plate and the contact spring is obtained in a simple and cost-effective manner.
  • an electrical conductor is provided, which produces an electrically conductive connection between the second contact terminal and the contact rivet which is held on the armature. As a result, high currents can be switched loss.
  • the relay 1A and 1B show a perspective view of a relay 1 and a representation of the top of the relay 1.
  • the relay 1 has a substantially cuboid shape, wherein on a back two coil terminals 2 are arranged, which are for electrically connecting a power supply for a Serve coil of the relay 1.
  • the contact terminals 3, 4 are used to connect two lines that are electrically connected or disconnected via the relay depending on the switching state of the relay.
  • FIG. 2 shows a schematic overview of a process for producing the relay 1.
  • the production steps of three different subunits are shown in three rows R1, R2, R3.
  • the manufacturing steps are subdivided into fourteen production steps P1 to P14 for all three rows R1, R2, R3.
  • a first row R1 the manufacturing steps for producing an armature with contact spring are shown.
  • a second row R2 the manufacturing steps that are performed to produce the relay 1 are shown.
  • a third row R3 the manufacturing steps for producing the two contact terminals 3, 4 are shown.
  • a significant advantage of the manufacturing method shown in Fig. 2 is that the contact terminals 3, 4 and a magnetic coil 13 with a yoke plate 11 on carrier tapes 5, 6 during extrusion coating, in which the contact terminals 3, 4 with the magnetic coil and the yoke plate molded together be, are held.
  • a second carrier tape 6 has a yoke plate 11.
  • the yoke plate 11 has a substantially U-shape with two legs 21, 22.
  • a center piece 20 connects the two legs 21, 22.
  • the middle piece 20 later serves as a magnetic core.
  • the second carrier tape 6 and the yoke plate 11 are preferably produced in a stamping process, wherein the yoke plate 11 is formed integrally with the second carrier tape 6 via a spacer 23.
  • the spacer 23 is arranged parallel to the direction of the middle piece 20.
  • a coil frame 12 is injection-molded onto the yoke plate 11, wherein coil terminals 2 are also integrated.
  • the first carrier tape 5 is shown in the third row R3, which is formed integrally with a first and a second contact strip 7, 8.
  • the first and second contact strips 7, 8 are arranged substantially parallel to the longitudinal direction of the first carrier strip 5.
  • the first contact strip 7 is connected to the first carrier strip 5 via a first connecting piece 9.
  • the second contact strip 8 is connected to the first contact strip 7 via a second connecting piece 10.
  • the first contact strip 7 has a hole into which a contact rivet 19 is introduced at a following fifth production point P5.
  • the first and the second carrier tape 5, 6 brought into a mounting position to each other, wherein the first and second contact strips 7, 8 are arranged below the yoke plate 11.
  • the second contact strip 8 is arranged directly below the second leg 22 of the yoke plate 11, wherein the second contact strip 8 projects beyond the ends of the second leg 22 on both sides.
  • the first contact strip 7 is preferably arranged in the region between the first and the second leg 21, 22, but below the first and the second leg 21, 22. Instead of the illustrated embodiment, the first contact strip 7 may also be arranged above the first and second legs 21, 22.
  • the contact rivet 19 of the first contact strip 7 is arranged in front of the encapsulated magnetic coil 13.
  • a relay unit is manufactured by an overmolding process in which the yoke plate 11 is fixedly fixed in position to first and second contact strips 7, 8, which are contact terminals 3, 4.
  • a bottom plate and side walls 24 are molded.
  • the bottom plate and the side walls 24 are integrally made of plastic.
  • the first and second connecting pieces 9, 10 are arranged outside the side walls 24.
  • the spacer 23 of the second carrier tape 6 is arranged outside the side wall 24.
  • the armature spring unit 31 is inserted at the tenth manufacturing point P10 in the relay unit. In this position, the relay unit is held only by the first carrier tape 5. In the transition between the ninth to the tenth manufacturing position, the second carrier tape 6 was separated from the relay unit.
  • the transport devices required for transporting the carrier belts 5, 6 are not shown in FIG. 2 for the sake of clarity.
  • an injection mold is used, which is injected with plastic.
  • the plastic is electrically insulated.
  • a soft magnetic sheet strip is used for producing the yoke plate 11.
  • the first carrier tape 5 is cut off from the relay 1.
  • the relay 1 is closed with a lid 17.
  • a complete relay 1 is manufactured.
  • Fig. 3 the first four production positions P1 to P4 for the second row R2 are shown on a larger scale. In this case, clearly the two side parts of the coil frame 12 and the introduced coil terminals 2 can be seen. After the wrapping of the coil frame 12 with the coil 13, end pieces 25 of the coil wire are connected to the coil terminals 2.
  • the coil terminals 2 are formed in the form of pins which are passed through a part of the coil frame 12. The lower ends of the coil terminals 2 are bent in the transition from the third to the fourth production position P3, P4 parallel to the second carrier tape 6 and pointing away from the coil 13.
  • FIG 4 shows, in an enlarged view, the fifth to ninth production positions P5, P9 for the second and third rows R2, R3.
  • the first and second contact strips 7, 8 disposed below the yoke plate 11 and the second contact strip 8 protrudes on both sides beyond the ends of the first leg 21 of the yoke plate 11 also.
  • the second end of the second contact strip 8 terminates flush with the coil frame 12.
  • a part of the bottom plate 26 is arranged between the first leg 21 and the second contact strip 8, which was produced by the extrusion coating process.
  • the first contact strip 7 is both encompassed by a front wall 37 and laterally embedded in the coil block 28.
  • the region of the first contact strip 7, in which the contact rivet 19 is arranged, is not encapsulated with the encapsulation process, but kept free. Furthermore, a contact space 27 is not encapsulated, which is arranged between a rear wall 36 and the first leg 21. The surfaces of the legs 21, 22 of the yoke plate 11 are not covered during extrusion coating. Thus, in the contact space 27, the top of the second end piece of the second contact strip 8 is freely accessible.
  • Fig. 5 shows an enlarged view of the tenth to thirteenth production point P10, P13 for the first and second series R1, R2.
  • the relay unit has a cuboid coil block 28 which is incorporated in a housing of two side walls 24, a front wall 37 and a rear wall 36. Between the coil block 28 and the front wall 37, an armature space 29 is formed, which extends over the entire side length of the front wall 37. Between a side wall 24 and the coil block 28, a spring chamber 30 is formed. The armature space 29 and the spring space 30 overlap in a corner region and are aligned perpendicular to each other. In the armature space and in the spring chamber 29, 30, the armature / spring unit 31 is inserted, wherein jointly a spring member 16 in the spring chamber 30 and an armature 15 are inserted into the armature space 29 from above.
  • the armature spring unit 31 has an L-shape in the basic form, which is arranged parallel to two side edges of the coil block 28.
  • the armature 15 is substantially formed as a rectangular plate which is supported in a spring contact assembly 32.
  • the spring contact arrangement 32 has the spring part 16, which is formed integrally with a contact spring part 33.
  • the spring part 16 has a downwardly bent contact region 39, which is inserted in the assembly of the armature spring unit 31 in the contact space 27 and is firmly connected to the second contact strip 8.
  • FIG. 6A to 6D show three different manufacturing steps in the manufacture of the armature spring unit 31.
  • FIG. 6C shows the armature spring unit 31, which consists of the spring contact arrangement 32, which is stamped from a spring plate and bent accordingly.
  • FIG. 6A shows the spring contact arrangement 32, which consists of the spring part 16, which is arranged substantially perpendicular to the contact spring part 33.
  • the spring member 16 is formed as a narrow plate, which connects to an upper holding plate 34.
  • the upper holding plate 34 is substantially rectangular in shape and arranged perpendicular to the longitudinal direction of the spring member 16.
  • the upper holding plate 34 merges laterally into a connecting bracket 35, which is arranged substantially in the longitudinal direction of the spring part 16.
  • the connecting bracket 35 is formed substantially L-shaped, with a shorter leg is connected to the upper support plate 34. Transverse to the longer leg of the connecting bracket 35, the downwardly bent contact spring part 33 is formed, which is arranged perpendicular to the spring member 16.
  • the armature 15 is inserted between the long legs of the connecting bracket 35 and the upper retaining plate 34, as shown in FIG. 6B. Subsequently, the upper holding plate 34 is pressed onto an upper side of the armature 15, wherein both the upper support plate 34 and the longer leg of the connecting bracket 35 are fixedly connected to the armature 15, for example by welding or riveting.
  • the contact spring part 33 is arranged in parallel and under the armature 15.
  • the contact spring 33 has a second Kunststoffniet 40 which is fixed on an underside of the contact spring 33.
  • a free end of the spring member 16 is bent downwards and merges into a contact region 39, which is arranged almost parallel to the upper holding plate 34, as shown in Figure 6C.
  • the spring member 16 in cross-section at the free end of an S-shape, as shown in Figure 6D.
  • the contact region 39 serves for the mechanical fastening of the spring part 16 on the second contact strip 8 in the contact space 27.
  • Fig. 7 shows a representation of the relay 1 from a front side, wherein the front wall 37 is partially opened.
  • the upper side of the first contact strip 7 is not covered with encapsulation material, at least in the region of the contact rivet 19.
  • the surfaces of the first and second leg 21, 22 have not been covered with Umspritzmaterial during extrusion coating.
  • the armature 15 is arranged transversely to the first and the second leg 21, 22 and preferably lies in the region of the upper retaining plate 34 on the first leg 21.
  • FIG. 8 shows the relay 1 in an open switching position, in which the second contact rivet 40 is lifted off the first contact rivet 19.
  • the armature 15 is still on the first leg 21, but is lifted from the second leg 22.
  • the armature 15 is resiliently supported by the spring contact assembly 32, with the rest position of the armature 15 corresponding to the open position as shown in FIG. Only by energizing the magnetic coil 13, an electromagnetic field is generated which pulls the armature 15 in the closed position shown in FIG. 7.
  • Fig. 9 shows a view of the relay 1 from the back, wherein the rear wall 36 of the relay 1 is partially cut.
  • the spring member 16 is placed with the contact portion 39 on the second contact strip 8 and mechanically fixed to the contact strip 8.
  • the connection is made for example via a welding or soldering layer.
  • the armature 15 is resiliently supported.
  • the spring member 16 can be made relatively long, so that a large elasticity is obtained.
  • This also supports the desired spring elasticity of the holder of the armature 15.
  • the lateral arrangement of the armature 15 which is fixedly connected in one end region with the spring member 16, an advantageous Switching situation to be obtained.
  • FIG. 10 shows a further preferred embodiment of the relay 1, in which an electrical conductor 41, preferably a stranded wire, is electrically conductive with one end via the contact region 39 with the second contact 8 and with a second end with the second contact rivet 40 of the armature 15 is conductively connected.
  • the electrical conductor 41 is inserted in the spring chamber 30 and in the armature space 29. In the armature space 29, the electrical conductor 41 is guided past the armature 15 between the armature 15 and the coil block 28 and is electrically conductively connected to the second contact rivet 40.
  • FIG. 11 shows a cross-section B-B through the relay of FIG. 10. In this case, the guidance of the electrical conductor 41 and the electrical connection to the second contact rivet 40 are clearly shown, which are held on the armature 15 via a contact-spring part 33.
  • FIG. 12 shows a section AA along the spring chamber 30 of FIG. 10.
  • the electrical contacting of the electrical conductor 41 at the contact region 39 and thus the electrically conductive connection between the second contact 8 and the electrical conductor 41 can be clearly seen.
  • the contact region 39 of the spring part 16 is arranged between the electrical conductor 41 and the second contact 8.
  • the electrical conductor 41 may be connected directly to the second contact 8 electrically conductive.
  • This embodiment will then chosen, for example, if for the material of the spring member 16, a non-conductive material, such as spring steel, is used. The use of spring steel may be advantageous for achieving improved resilient properties of the bracket 15 of the anchor.
  • the use of the electrical conductor 41 allows a relatively low-loss conduction of currents of over 40 amperes. In addition, it is no longer necessary to use a good electrically conductive material for the spring member 16 due to the electrical conductor 41.
  • FIG. 13 shows a side view of a further embodiment of a relay, which essentially corresponds to the previously described embodiments, but wherein the first and second contact terminals 3, 4 are in the form of plug-in connections.
  • the plug connections have the peculiarity that the end of the contact terminals 3, 4 tapers and is thus well suited to insert the relay 1 into corresponding electrical plug contacts, for example a printed circuit board.
  • the coil terminals 2 are disposed on the same side as the first and second contact terminals 3, 4 and also have a tapered shape in the end portion.
  • the tapered shape is preferably formed of two conically arranged side surfaces 42, 43.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnets (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)
  • Manufacture Of Switches (AREA)

Claims (11)

  1. Procédé de fabrication d'une unité de relais comportant au moins des premier et deuxième contacts de commutation (7, 8) et une culasse (11) avec une bobine magnétique (13),
    caractérisé en ce que les premier et deuxième contacts de commutation (7, 8) sont reliés à une première bande porteuse (5), la culasse (11) étant reliée à une deuxième bande porteuse (6), la première bande porteuse (5) étant reliée à plusieurs premiers et deuxièmes contacts de commutation (7,8), la deuxième bande porteuse (6) étant reliée à plusieurs culasses (11), les première et deuxième bandes porteuses (5, 6) étant mises dans une position de montage, les premier et deuxième contacts (7, 8) étant reliés par une pièce de liaison (10) lors du procédé d'injection, la pièce de liaison (10) étant agencée à l'extérieur de l'unité de relais, les contacts de commutation (7, 8) et la culasse étant reliés fermement par un procédé d'injection, et les premier et deuxième contacts de commutation (7, 8) et la culasse étant séparés des bandes porteuses (5, 6) après le procédé d'injection.
  2. Procédé selon la revendication 1, caractérisé en ce que des parties de la surface des branches (21, 22) de la culasse (11) restent exemptes du matériau d'injection lors du procédé d'injection.
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que le premier contact de commutation (7) comporte une surface de contact et un premier raccordement de contact (3), le deuxième contact de commutation (8) comportant un deuxième raccordement de contact (4) et une surface de contact.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que le deuxième contact de commutation (8) est agencé parallèlement et au-dessous d'une deuxième branche (22) de la culasse, le deuxième contact de commutation (8) débordant des deux côtés au-delà de la deuxième branche (22), une extrémité du deuxième contact de commutation comportant le deuxième raccordement de contact (4) et la deuxième extrémité comportant la surface de contact en vue de l'établissement d'un contact avec une unité d'armature/de ressort (31).
  5. Procédé selon la revendication 4, caractérisé en ce qu'une armature (15) est insérée avec un contact (40) et un ressort d'armature (38) dans l'unité de relais, l'armature (15) étant agencée avec une extrémité au-dessus d'une deuxième branche (22) de la culasse (11), le ressort d'armature (38) étant appliqué avec une région de contact (38) sur la surface de contact du deuxième contact de commutation (8), et le ressort d'armature (38) comportant la région de contact (38) étant relié fermement à la surface de contact du deuxième contact de commutation (8), l'armature (15) étant ainsi agencée avec sa deuxième extrémité au-dessus de la première branche (21) de la culasse et le contact (40) étant affecté à une surface de contact du premier contact de commutation.
  6. Procédé selon la revendication 5, caractérisé en ce qu'un conducteur électrique (41) est relié par conduction de manière électrique au niveau d'une première extrémité avec la surface de contact du deuxième contact de commutation (8), la deuxième extrémité du conducteur électrique (41) étant reliée par conduction de manière électrique avec le contact (40) de l'armature (15) et le conducteur étant inséré dans un espace correspondant du relais (1), au-dessus du ressort d'armature (38) et de l'armature (15).
  7. Relais fabriqué par un procédé selon l'une des revendications 1 à 6.
  8. Relais selon la revendication 7, caractérisé en ce que la bobine magnétique (13) est agencée dans un bloc de bobine (28), un espace d'armature (29) étant formé entre une paroi avant (37) et le bloc de bobine (28), un espace de ressort (30) étant formé entre une paroi latérale (24) et le bloc de bobine (28), l'espace de l'armature et de ressort (29, 30) étant reliés, et une unité d'armature/de ressort (31) étant insérée dans l'espace de l'armature et de ressort (29, 30).
  9. Relais selon la revendication 8, caractérisé en ce qu'un contact de raccordement (8) est agencé au-dessous de l'espace de ressort, une branche (22) de la culasse (11) étant agencée au-dessus du contact de commutation (8), le contact de raccordement (8) débordant avec ses deux extrémités au-delà des extrémités de la branche (22), une extrémité débordant du relais sous forme d'un raccordement et l'autre extrémité comportant une surface de contact avec laquelle l'unité de ressort est fermement reliée.
  10. Relais selon l'une des revendications 8 ou 9, caractérisé en ce qu'un conducteur électrique (41) est commuté entre un deuxième contact de commutation (8) et un contact (40) relié fermement à l'armature (15).
  11. Relais selon la revendication 10, caractérisé en ce que le conducteur électrique (41) est relié à la surface de contact du contact de commutation (8), le conducteur électrique (41) étant agencé dans l'espace du ressort (30) et l'espace de l'armature (29).
EP04005045A 2003-03-26 2004-03-04 Procédé de fabrication d'un relais électromagnétique et un relais électromagnétique Expired - Lifetime EP1463080B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04005045A EP1463080B1 (fr) 2003-03-26 2004-03-04 Procédé de fabrication d'un relais électromagnétique et un relais électromagnétique

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03006682 2003-03-26
EP03006682 2003-03-26
EP04005045A EP1463080B1 (fr) 2003-03-26 2004-03-04 Procédé de fabrication d'un relais électromagnétique et un relais électromagnétique

Publications (2)

Publication Number Publication Date
EP1463080A1 EP1463080A1 (fr) 2004-09-29
EP1463080B1 true EP1463080B1 (fr) 2006-09-27

Family

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Application Number Title Priority Date Filing Date
EP04005045A Expired - Lifetime EP1463080B1 (fr) 2003-03-26 2004-03-04 Procédé de fabrication d'un relais électromagnétique et un relais électromagnétique

Country Status (5)

Country Link
EP (1) EP1463080B1 (fr)
AT (1) ATE341093T1 (fr)
DE (1) DE502004001557D1 (fr)
ES (1) ES2274334T3 (fr)
PT (1) PT1463080E (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988010505A1 (fr) * 1987-06-16 1988-12-29 Ped Limited Perfectionnements apportes a des composants electriques
EP0523855B1 (fr) * 1991-06-18 1997-05-07 Fujitsu Limited Relais microminiature et procédé pour la production de celui-ci
DE19627845C1 (de) * 1996-07-10 1997-09-18 Siemens Ag Verfahren zur Herstellung eines elektromagnetischen Relais
JP4070481B2 (ja) * 2001-03-12 2008-04-02 アンデン株式会社 リレー装置

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Publication number Publication date
PT1463080E (pt) 2006-12-29
EP1463080A1 (fr) 2004-09-29
ES2274334T3 (es) 2007-05-16
ATE341093T1 (de) 2006-10-15
DE502004001557D1 (de) 2006-11-09

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