EP0013991A1 - Dispositif à ressorts de contact pour relais électromagnétiques polarisés - Google Patents

Dispositif à ressorts de contact pour relais électromagnétiques polarisés Download PDF

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Publication number
EP0013991A1
EP0013991A1 EP80100371A EP80100371A EP0013991A1 EP 0013991 A1 EP0013991 A1 EP 0013991A1 EP 80100371 A EP80100371 A EP 80100371A EP 80100371 A EP80100371 A EP 80100371A EP 0013991 A1 EP0013991 A1 EP 0013991A1
Authority
EP
European Patent Office
Prior art keywords
contact
spring
contact spring
actuating
arrangement according
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.)
Granted
Application number
EP80100371A
Other languages
German (de)
English (en)
Other versions
EP0013991B1 (fr
EP0013991B2 (fr
Inventor
Hans Sauer
Wolf Steinbichler
Sepp Dipl.-Ing. Antonitsch
Hiromi Nishimura
Kenji Ono
Toyataka Nishikawa
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.)
SDS Elektro GmbH
Original Assignee
Euro Matsushita Electric Works AG
SDS Elektro GmbH
Matsushita Electric Works Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25777549&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0013991(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE2902885A external-priority patent/DE2902885C2/de
Application filed by Euro Matsushita Electric Works AG, SDS Elektro GmbH, Matsushita Electric Works Ltd filed Critical Euro Matsushita Electric Works AG
Priority to AT80100371T priority Critical patent/ATE4010T1/de
Publication of EP0013991A1 publication Critical patent/EP0013991A1/fr
Publication of EP0013991B1 publication Critical patent/EP0013991B1/fr
Application granted granted Critical
Publication of EP0013991B2 publication Critical patent/EP0013991B2/fr
Expired 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
    • H01H50/54—Contact arrangements
    • H01H50/56—Contact spring sets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
    • H01H2001/265—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support having special features for supporting, locating or pre-stressing the contact blade springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/001—Means for preventing or breaking contact-welding

Definitions

  • the invention relates to a contact spring arrangement for electromagnetic relays, in which a contact spring cooperates with at least one fixed contact, is attached on one side or in the middle to a connection and is in each case covered with contact substance in the area in which it is opposite a fixed contact and in which the contact spring of both Sides of actuating pieces of an actuating part movable by the armature is included.
  • the invention is based on the object of providing a contact spring arrangement in which, in the case of contact welding, no significant deflection of the contact spring takes place due to the action of the armature to open the contact, while a deflection of the contact spring is ensured when contact is made.
  • the object is achieved in that the resilient distance which is decisive for the closing of the contact and which lies between the point of contact of the first actuating piece on the contact spring and the contact point is chosen to be greater than that which is decisive for the opening of the contact by the point of contact of the second Actuating piece on the contact spring and the contact point given distance, and that the first actuating piece effective when the contact closes acts on the side of the contact spring facing away from the fixed contact and the second actuating piece effective on opening the contact engages on the side of the contact spring facing the fixed contact.
  • this contact spring arrangement can be used particularly advantageously in the case of polarized relays in which the actuating force of the armature increases progressively with increasing deflection from a permanent magnetic zero force zone up to the final tightening force and is reduced by the spring force of the contact spring.
  • the long spring travel favors good reproducibility of the storage of the permanent magnetic force in the contact springs, so that the desired contact force can be set in a narrow range.
  • L 3 L 1 is for a forced contact opening and flexible contacting , where L 3 is the resilient length, formed by the distance between the contact-removing actuating piece and the contact, L 1 is a greater resilient length, the distance from the actuating piece making contact to the point of contact of the two contact springs and h or h 'the effective spring thickness of the sections L 3 and L 1 mean.
  • the contact spring 1 is divided into three sections 1 ', 1'',1''' at its free end by incisions 14 extending in the longitudinal direction of the spring and fastened to a connection 3 at its other end. These sections are spread apart and biased against each other by the actuating pieces 6, 7 in such a way that contacting begins with a force F K.
  • the two outer sections 1 ′, 1 ′′ ′′ run essentially in the longitudinal direction of the spring, are covered with contact material 4 in the areas opposite a fixed contact 5, and their ends are attached to the second actuating piece 6.
  • the middle resilient section 1 ′′ is bent to achieve a prestress F K with respect to the two outer sections 1 ′, 1 ′′ ′′, guided essentially parallel to these and supported at the end on the first actuating piece 7 of the actuating part 12.
  • the resilient distance for closing the contact 4, 5 results as the sum of the distance L 1 from the point of application of the first actuating piece 7 to the base 15 of the resilient section 1 'at the contact spring 1 and the distance L 2 from the base 15 to the contact point.
  • the contact 1 is actuated via the actuating part 12 by an armature (not shown) in the direction of the arrow 16.
  • the actuating piece 7 presses against the end of the resilient section 1 ′′ and brings the contacts 4 into engagement with the fixed contact 5. Since the contact begins with the initial contact force F K in accordance with the pretensioning of the resilient section 1 ′′, the contact is characterized by a particularly low level of bounce. When making contact, the resilient length L 1 + L 2 is effective.
  • the resulting large spring travel provides a good possibility for storing this force in the contact spring 1 in the event that the actuating force of the armature is obtained from the attraction force of a permanent magnet.
  • This stored force determines the contact force.
  • the actuating piece 6 presses against the sections 1 ', 1'''. Since the distance L 3 from the point of application of the actuating piece 6 to the contact is as short as possible, the deflection of the sections 1 ', 1''' is relatively small, so that the contact opening is forced.
  • stiffening profiles 13 can also be embossed into them.
  • a fixed contact 5, 5 ' is provided on both sides in the region of the free spring end, which are offset from one another in the longitudinal direction of the spring.
  • the actuating pieces 6, 7 are each arranged in the immediate vicinity of the fixed contacts 5, 5 ', in such a way that a larger resilient distance L 2 or 5' for closing a contact 5, 4 or 5 ', 4'.
  • L 2 'from the point of application of the actuating piece 6, 7 to the respective contact point is present as the distance L 3 or L 3 ' determining the opening of the contacts from the point of application of the actuating piece 7, 6 to the respective contact point.
  • a changeover contact is realized in a simple manner, in which the contact via the long spring travel L 2 , L 2 ', on the other hand, is forced via the short and thus rigid sections L 3 , L 3 '.
  • a profile 13 can also be stamped into the spring 1 in this exemplary embodiment.
  • the contact spring 1 is actuated, for example, via the rotating armature 8, which is partially shown.
  • the first actuating piece 7 engages between the attachment point of the contact spring 1 at the connection 3 and the fixed contact 5 'located closer to the connection 3 in the immediate vicinity of this first fixed contact 5' and the second actuating piece 6 at the fixed contact 5 which is more distant from the connection 3 extended free end of the contact spring 1 in the immediate vicinity of this second fixed contact 5.
  • the actuation of this contact 4, 5 takes place in the position shown via the actuating piece 7, which acts with the force F on the spring.
  • Fig. 3 shows a rotary armature relay with a changeover contact 17, a normally open contact 18 and a normally closed contact 19, which are actuated by actuating pieces 6, 7 of an actuating part 12 by the rotary armature 8.
  • the rotary armature also contains permanent magnets M and two pole shoes 9, 9 ', which interact with pole ends 1 0 , 1 0 ' of the coil core. With all contact springs 17, 18, 19 is in the area of the free spring a single fixed contact 5 is provided at the end.
  • the first actuating piece 7 engages between the attachment point of the contact spring at the connection 3 and the contact point on the side of the contact spring 1 facing away from the fixed contact 5 and the second actuating piece 6 at the end of the contact spring 1 which is extended beyond the fixed contact 5 in the immediate vicinity of the fixed contact 5 and on the side of the contact spring facing this contact.
  • the actuating part 12 is also designed such that the points of attack of all actuating pieces 6, 7 lying on one side of the armature 8 lie in one plane.
  • Fig. 4 shows a relay with four changeover contacts. 20, 21, 22, 23, which in principle correspond to the changeover contact in Fig. 2.
  • the magnet system essentially corresponds to that shown in FIG. 3, so that the same details are provided with the same reference numerals. While in FIG. 2 a straight contact spring 1 is arranged between offset fixed contacts 5, 5 ', in FIG. 4 the connections 3 of the changeover contact springs 2 0 , 21, 22, 23 and the fixed contacts 5, 5' are aligned in a line arranges, wherein the contact springs between these fixed contacts are passed in an offset.
  • the storage of the permanent magnetic force also includes the possibility of additionally compensating for the temperature coefficient of the coil.
  • permanent magnets M are to be provided, in which the influence of the temperature coefficient on the actuating force of the armature due to the storage effect of the contact springs is greater than on the permanent magnetic field. For example, this can be achieved with BaOFe magnets.
  • the contact 4, 5 is opened when the end of the rotary armature 8 moves in the direction of the arrow 16, as in the previously described examples. In the event that the contact 4, 5 is welded and the actuating force F of the armature 8 is not sufficient to break the weld, this armature movement does not take place. The existing switching state is then retained for all contacts 4, 5 and 4 ', 5'.
  • FIG. 5 shows a rotary armature relay, in which an armature provided with permanent magnets is supported on one side on a flexible web 24 in a bearing block 25.
  • the insulating material casing further fixed in the armature at least one permanent magnet, not shown, as well as the pole pieces 9, 9 ', which with the pole ends 1 0, 1 0' cooperating of the coil core.
  • the actuators shown in section 6, 7 and 6 ', 7' are connected to one another on their upper side, that is to say they grip around the contact springs 1 and 1 '.
  • the right contact 4, 5 is closed, the left contact 4 ', 5' is open.
  • the spherical actuating piece 7 presses against the contact spring 1, while the opposite actuating piece 6 is lifted off the latter.
  • the contact spring 1 experiences considerable deflection.
  • the contact opening at the left contact point 4 ', 5' takes place through the action of the actuating piece 6 'on the contact spring 1', the actuating piece 7 'being lifted off the contact spring.
  • the contact-near corner 26, 26 'of the actuating piece 6, 6' comes into engagement with the contact spring 1 ', so that only the short resilient length L 3 , L 3 ' is effective up to the contact point.
  • the contact point on the contact spring moves with increasing opening of the contact 4 ', 5', since the surface of the actuating piece 6 'facing the contact spring 1' runs parallel to the longitudinal axis of the armature 8, from the contact-near to the non-contact corner of the actuating piece 6 '.
  • This also ensures in this embodiment of the invention that the contact is made over long spring travel L 2 , L 2 ', but the opening takes place over short and thus rigid sections L 3 , L 3 '.
  • the permanent magnetic attraction force can be stored well in the contact springs 1, 1 '. Due to the slight deflection of the contact springs 1, 1 'at the contact opening, on the other hand, in the case of contact welding, the welded contact is either torn open and the other is actuated properly - or, if the weld cannot be broken, the other contact is also no longer actuated.
  • FIG. 6 shows a permanent magnet armature 8 of a polarized relay with a magnet M between the pole shoes 9, 9 ', which is mounted in its axis of gravity A and is located in one of two rest positions.
  • the magnet M is partially encased in a known manner by plastic of the actuating part 12 and thus fixed.
  • Armature 8 and actuating part 12 with the actuating pieces 6, 7, 6 ', 7' formed thereon form a unit.
  • the arrangement according to FIG. 6 is a mirror image of both the X and Y axes and is therefore not shown in full.
  • the armature 8 is in one of its two end positions, wherein the pole piece 9 ', according to one Ankerweg s, with the force F 4 at one of the pole ends 1 0, 1 0' occurs a coil core, not shown, to lie.
  • To the side of the X axis of the armature 8 are the fixed contacts 5, 5 'and in the center thereof the contact connection 3, to which the contact springs 1, 2' are also firmly connected in the center.
  • the contact spring 1 is provided with contacts 4, 4'.
  • the contact spring 2 In addition to the contact spring 1 functioning as a changeover switch, the contact spring 2 'runs. Both springs have a small preload F K (Fig.
  • the widths of the springs can also be varied in order to achieve the desired spring properties or stiffness of the contact springs used. In contrast to a change in spring length and thickness, a change in width only has a linear effect on the deflection of the contact springs.
  • the spring constant in the deflection range x (Fig. 9) should rise very low and moderately steep in the subsequent contacting range, both for reasons of adequate storage of permanent magnetic attraction forces for the contact force and because the response and dropout values of the relay are as stable as possible. This should also be ensured if the contact distance increases as a result of contact erosion.
  • the spring constant must rise very steeply in the case of a forced contact opening, that is to say the spring piece acting thereby must be rigid. For this reason, the resilient length L 2 from the contact point 4 ', 5' to the actuator 6 'is kept as short as possible.
  • a forced contact opening can be obtained by either stamping a profile 13 (FIG. 11) for the contact spring 1 or, which is equivalent, a larger one Thickness h is chosen as it is given for the thickness h 'of the more flexible contact spring 2. This is problem-free because, after the contact has opened, the relatively large spring length L 5 with a very low spring constant is effective.
  • Fig. 7 shows an embodiment of the invention with two also arranged laterally to the X axis of the armature not shown working contacts, which are closed when the armature is deflected about its axis of rotation A in the direction of the arrow, according to the above-mentioned description.
  • the exemplary embodiment shows a further possibility of making the spring 2 'even more flexible compared to the contact spring 1, in that, in addition to the relation of the spring strengths h: h', that of the lengths Lg: L 7 can also be varied by the two contact springs 1, 2 ' at differently positioned contact connections 3, 3 1 are attached. These connections can either be connected externally or remain separate.
  • this second contact connection 3 'offers better adjustment options, which are also given when the two contact connections 3, 3' are fork-shaped, combine in a known manner in the plastic carrier part and emerge from the base of the relay as a single connecting pin.
  • two normally closed contacts are designed either on the other side of the X-axis or the subordinate one as such with an analog force-displacement curve and corresponding geometry.
  • the two contact spring members 1, 2 are formed from a spring band, provided with contacts 4, 4 ', which are arranged opposite the fixed contacts 5, 5' are firmly connected in the middle of the contact terminal 3 and are symmetrical to each other with respect to the X axis.
  • the two spring members of this double contact spring are also located just next to the contacts 4, 5 and 4 ', 5' with a low preload F K on the actuating pieces 6, 7, which are made of plastic and are integrally formed on the armature 8.
  • the contact distance x given during the switching process is expanded by the deflection spring travel f in addition to the given geometric relations.
  • L 6 of the contact distance a in the final state may be greater than the armature travel s, which, however, a reduction of the contact force F 3 has the consequence.
  • FIG. 1o shows an embodiment according to the principle of FIG. 9 but with two changeover contacts arranged next to one another on one end of the relay, and since the opposite end can be equipped with both the same arrangement according to FIG. 8 and FIG the possibilities set out in a polarized relay to create 2, 3 or 4 changeover contacts with the double contact spring according to the invention and to position all contacts 4, 5, 4 ', 5' very close to the swivel axis X, whereby the abrasion of the actuating pieces 6, 7 compared the contacts to be operated is correspondingly low.
  • 11 and 12 show contact spring arrangements in which the contact point K of the contact springs 1, 2, 2 'is in each case predetermined by a bead.
  • the springs 1, 2 being fastened on one side to the connection 3 and being electrically connected to one another.
  • the actuating piece 7 presses the contact spring 2 to the left until the contact 4 of the spring 1 comes into engagement with the fixed contact 5.
  • the springs 1, 2 are pretensioned relative to the actuating pieces 6, 7, the contact is made with a corresponding initial contact force F K.
  • the spring force F 1 transmitted to the contact point via the bead of the spring 2 is added to this initial contact force (FIG. 13).
  • the resilient length L 1 of the contact spring 2 is primarily decisive for storing the contact force F 3 obtained from the permanent magnetic attraction force M '.
  • the arrangement according to FIG. 12 is designed as a changeover contact, the actuation of both contacts 4, 5 and 4 ', 5' taking place in the same way as for the contact shown in FIG. For this reason, matching reference numerals have been chosen.
  • the contact spring 1, 2 is formed in one piece, fixed in the center to a connecting pin and provided with two resilient sections on each side. The sections running side by side are connected to each other on both sides of the connecting pin 3 by webs 11.
  • the contact spring 1, 2 is thus a stamped and bent part, which is already e.g. is positioned on the pin 3 by spot welding through the two webs.
  • the curve M 'progressively rising and dashed from the center 0 represents the permanent magnetic attraction force without excitation power acting on the pole shoes 9, 9' of the armature 8 during the armature path s.
  • the illustrated advance of the permanent magnetic attraction force M ' which is symmetrical with respect to the Z axis. is useful if bistable switching behavior, ie two-sided contact rest position is desired.
  • the axis Z can also be displaced from the center of the anchor path, for example if asymmetrical, one-sided contact resting position is to be achieved. This can be achieved, for example, by differently sized pole faces 9, 9 '.
  • the force-displacement curve M ' is counteracted individually and in its entirety by the forces of the contact spring members 1, 2 or 2' according to the dotted lines D.
  • the distribution of the actuating pieces 6 and 7 on the springs 1, 2 or 2 'force F acts to a lesser extent F 2 on the contact connection 3, 3' and to a greater extent F 3 via the contact point K of the springs 1, 2 or 2 'on the contacts 4, 5 or 4', 5 '.
  • the opposing forces of the springs are insignificant during the contact path x.
  • the invention thus also helps the compensation of temperature influences proposed for modern relay technology in US Pat. No. 3,634,793 in order to achieve constant response voltage and the use of a so-called C circuit for breakdown.
  • Such a circuit, with which bistable relays are given monostable switching behavior, is, for example, in "Relay Lexicon” 1975 by H. Sauer, page 12, or the magazine “Elektrotechnik” 6 0 , H. 24, 27.12.78, page 43 , described.
  • a satisfactory storage of permanent magnetic attraction force is achieved as a contact force when the forced contact opening is usually required.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
EP80100371A 1979-01-25 1980-01-24 Dispositif à ressorts de contact pour relais électromagnétiques polarisés Expired EP0013991B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80100371T ATE4010T1 (de) 1979-01-25 1980-01-24 Kontaktfederanordnung fuer gepolte elektromagnetische relais.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2902885 1979-01-25
DE2902870 1979-01-25
DE2902885A DE2902885C2 (de) 1979-01-25 1979-01-25 Kontaktfederanordnung für elektromagnetische Drehankerrelais
DE2902870 1979-01-25

Publications (3)

Publication Number Publication Date
EP0013991A1 true EP0013991A1 (fr) 1980-08-06
EP0013991B1 EP0013991B1 (fr) 1983-06-29
EP0013991B2 EP0013991B2 (fr) 1988-06-08

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ID=25777549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100371A Expired EP0013991B2 (fr) 1979-01-25 1980-01-24 Dispositif à ressorts de contact pour relais électromagnétiques polarisés

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EP (1) EP0013991B2 (fr)
DE (1) DE3063933D1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022953A1 (fr) * 1979-07-18 1981-01-28 Hans Sauer Relais électromagnétique
DE3240800A1 (de) * 1982-11-04 1984-05-10 Hans 8024 Deisenhofen Sauer Elektromagnetisches relais
EP0168058A2 (fr) * 1984-07-13 1986-01-15 EURO-Matsushita Electric Works Aktiengesellschaft Relais de sécurité
EP0203515A2 (fr) * 1985-05-29 1986-12-03 EURO-Matsushita Electric Works Aktiengesellschaft Relais électromagnétique
EP2752862A1 (fr) * 2011-02-11 2014-07-09 Clodi L.L.C. Relais électromagnétique bistable avec moteur X-drive
WO2015007855A1 (fr) * 2013-07-19 2015-01-22 Tyco Electronics Amp Gmbh Contact de commutation électrique et dispositif de commutation le comportant
CN108682597A (zh) * 2018-05-31 2018-10-19 厦门宏发汽车电子有限公司 一种小型化继电器的可抗毛屑污染的静簧插装结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501507A (en) * 1947-11-21 1950-03-21 Gen Electric Electric circuit controller
US2997560A (en) * 1959-04-30 1961-08-22 Ibm High speed relay
US3165607A (en) * 1961-08-11 1965-01-12 Ibm Armature for electro-magnetic relay
FR2102191A1 (fr) * 1970-08-11 1972-04-07 Siemens Ag

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501507A (en) * 1947-11-21 1950-03-21 Gen Electric Electric circuit controller
US2997560A (en) * 1959-04-30 1961-08-22 Ibm High speed relay
US3165607A (en) * 1961-08-11 1965-01-12 Ibm Armature for electro-magnetic relay
FR2102191A1 (fr) * 1970-08-11 1972-04-07 Siemens Ag

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022953A1 (fr) * 1979-07-18 1981-01-28 Hans Sauer Relais électromagnétique
DE3240800A1 (de) * 1982-11-04 1984-05-10 Hans 8024 Deisenhofen Sauer Elektromagnetisches relais
US4571566A (en) * 1982-11-04 1986-02-18 Matsushita Electric Works, Ltd. Electromagnetic relay
EP0168058A3 (en) * 1984-07-13 1988-08-17 Sds-Relais Ag Safety relay
EP0168058A2 (fr) * 1984-07-13 1986-01-15 EURO-Matsushita Electric Works Aktiengesellschaft Relais de sécurité
EP0203515A3 (en) * 1985-05-29 1989-03-22 Sds-Relais Ag Electromagnetic relay
EP0203515A2 (fr) * 1985-05-29 1986-12-03 EURO-Matsushita Electric Works Aktiengesellschaft Relais électromagnétique
EP2752862A1 (fr) * 2011-02-11 2014-07-09 Clodi L.L.C. Relais électromagnétique bistable avec moteur X-drive
WO2015007855A1 (fr) * 2013-07-19 2015-01-22 Tyco Electronics Amp Gmbh Contact de commutation électrique et dispositif de commutation le comportant
CN105393328A (zh) * 2013-07-19 2016-03-09 泰连德国有限公司 电开关触头和具有相同电开关触头的开关设备
US9916954B2 (en) 2013-07-19 2018-03-13 Te Connectivity Germany Gmbh Electrical switching contact and switching device having the same
CN105393328B (zh) * 2013-07-19 2019-07-23 泰连德国有限公司 电开关触头和具有相同电开关触头的开关设备
CN108682597A (zh) * 2018-05-31 2018-10-19 厦门宏发汽车电子有限公司 一种小型化继电器的可抗毛屑污染的静簧插装结构
CN108682597B (zh) * 2018-05-31 2023-11-24 厦门宏发汽车电子有限公司 一种小型化继电器的可抗毛屑污染的静簧插装结构

Also Published As

Publication number Publication date
DE3063933D1 (en) 1983-08-04
EP0013991B1 (fr) 1983-06-29
EP0013991B2 (fr) 1988-06-08

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