EP0463884B1 - Small sized electromagnetic relay - Google Patents

Small sized electromagnetic relay Download PDF

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Publication number
EP0463884B1
EP0463884B1 EP91305903A EP91305903A EP0463884B1 EP 0463884 B1 EP0463884 B1 EP 0463884B1 EP 91305903 A EP91305903 A EP 91305903A EP 91305903 A EP91305903 A EP 91305903A EP 0463884 B1 EP0463884 B1 EP 0463884B1
Authority
EP
European Patent Office
Prior art keywords
contact spring
movable contact
base block
electromagnetic relay
stationary contact
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
EP91305903A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0463884A2 (en
EP0463884A3 (ko
Inventor
Noboru Tomono
Atsuto Kobayashi
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.)
Takamisawa Electric Co Ltd
Original Assignee
Takamisawa Electric Co 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=13374002&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0463884(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Takamisawa Electric Co Ltd filed Critical Takamisawa Electric Co Ltd
Publication of EP0463884A2 publication Critical patent/EP0463884A2/en
Publication of EP0463884A3 publication Critical patent/EP0463884A3/xx
Application granted granted Critical
Publication of EP0463884B1 publication Critical patent/EP0463884B1/en
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/042—Different parts are assembled by insertion without extra mounting facilities like screws, in an isolated mounting part, e.g. stack mounting on a coil-support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/548—Contact arrangements for miniaturised relays

Definitions

  • the present invention relates to an electromagnetic relay according to the preamble of claim 1, wherein a movable contact spring and a stationary contact spring are inserted by moulding into a base block.
  • the moulding thickness can be made smaller than that of the former method, and this helps to reduce the size of the relay.
  • US-A-4,656,733 discloses an electromagnet relay having an electromagnet assembly and a base block assembly for fixing said electromagnet assembly thereto, the base block assembly comprising a base block, a moveable contact spring, and a stationary contact spring, the movable contact spring (9) and the stationary contact spring being inserted by moulding into said base block, the movable contact spring having a slit extending longitudinally from the end thereof carrying the movable contact.
  • the relay in accordance with the invention is characterised in that the movable contact is on only one side of the slit at the said end of the movable contact spring and in that the other side of the slit at the said end of the movable contact spring is inserted at its free end into the base block, the arrangement serving to produce an increase in the effective length of the movable contact spring; and in that the width of a portion of the movable contact spring and of the stationary contact spring within the base block is larger respectively than that of a portion of the movable contact spring and of the stationary contact spring outside the base block.
  • Fig. 1 and 2 which illustrates an embodiment of the present invention, reference X designates an electromagnet assembly, and Y designates a base block assembly.
  • Reference numeral 1 designates a bobbin on which a winding 2 is wound.
  • the bobbin 1 has two collars la and 1b, and block-shaped portions 1c and ld protruded from the collar 1b.
  • Winding terminals 3a and 3b are inserted by pressure into the block-shaped portions lc and 1d, respectively, and the ends of the winding are fixed to the winding terminals 3a and 3b.
  • Reference 4 designates a core which penetrates the center of the bobbin 1 and is fixed by a yoke 5. Note, a magnetic pole portion of the core 4 is indicated by 4a.
  • Reference 6 designates an armature which is fixed to an end of a L-shaped hinge spring 7, the other end of which is fixed to the yoke 5 by inserting the protrusions (not shown) thereof into holes 7a and 7b of the hinge spring 7, whereby the electromagnet assembly X is completed.
  • a base block 8 includes an approximately cylindrical insulating barrier 8a having an opening through which the electromagnet assembly X is inserted. Also, a movable contact spring 9 having a contact 9a and a terminal 9b and a stationary spring 10 having a contact 10a are inserted by molding into the base block 8. Note that the body of the movable contact spring 9 and a terminal 9b thereof can be formed separately or integrally.
  • a slit 9c extends longitudinally from one end of the movable contact spring 9, to thereby effectively increase the length of the movable contact spring 9, i.e., reduce the stiffness thereof.
  • the movable contact 9a is on one side of the slit 9c at the said end thereof on the opposite side of the slit 9c to the terminal 9b.
  • the stationary contact spring 10 is approximately L-shaped, to thus effectively increase the length of the stationary contact spring 10, i.e, reduce the stiffness thereof.
  • Reference 12 designates a two-parallel-arm type and card for transmitting a motion of the armature 6 to the movable contact spring 9.
  • curled portions 12a and 12b of the card 12 are inserted into holes 6b and 6c of the armature 6.
  • reference 13 designates a box for accommodating the body of relay.
  • the box 13 is adhered by adhesives to the base block 8.
  • the adhesives are inserted in through holes 8b and 8c of the base block 8, but the adhesive may be spilt to form a hinge portion 5a of the yoke 5.
  • two parallel rails (protrusions) 8d and 8e are provided at the base block 8 on the opening side of the barrier 8a.
  • the parallel rails 8d and 8e are positioned inside of the block-shaped portions 1c and 1d when the electromagnet assembly X is inserted into the cylindrical insulating barrier 8a of the base block 8, and thus the parallel rails 8d and 8e also serve as guides for the electromagnet assembly.
  • the movable contact spring 9 (in this case, the terminal 9b) and the stationary contact spring 10 of Figs. 1 and 2 are explained in more detail with reference to Fig. 3.
  • a portion 91 of the terminal 9b within the base block 8 is made wider than a portion 92 of the terminal 9b outside of the base block 8, to ensure a secure adhesion of the terminal 9b of the movable contact spring 9 to the base block 8. Also, a portion 93 of the terminal 9b towards the external terminal 94 thereof is made slimmer. As a result, even when a large force is applied to the external terminal 94, such a large force is absorbed by the slim portion 93, to thus avoid a transformation of the movable contact spring 9.
  • a portion 101 of the stationary contact spring 10 within the base block 8 is made wider than a portion 102 of the stationary contact spring 10 outside of the base block 8, to thus ensure a secure adhesion of the stationary contact spring 10 to the base block 8.
  • a portion 103 of the stationary contact spring 10 towards the external terminal 104 thereof is made slimmer. As a result, even when a large force is applied to the external terminal 104, such a large force is absorbed by the slim portion 103, to thus avoid a transformation of the stationary contact spring 10.
  • both of the external terminals 94 and 104 are arranged at the same face with respect to the longitudinal direction of the relay.
  • the terminal 9b of the movable contact spring 9 is further securely adhered to the base block 8.
  • the card 12 of Figs. 1 and 2 is explained in more detail with reference to Figs. 4A, 4B, and 5. That is, a portion 12c of the card 12 is fitted on an upper portion of the movable contact spring 9, and simultaneously, a protrusion 12d of the card 12 penetrates through a hole 9d of the movable contact spring 9, thus avoiding a separation of the card 12 from the movable contact spring 9.
  • the movable contact spring 9 and the stationary contact spring 10 are located on an opposite sides of the electromagnetic assembly X with respect to the base block 8, it is possible to obtain a sufficient distance between the electromagnet and the contacts, thus improving the anti-surging characteristic and anti-noise characteristic of the relay.
  • the winding terminals 3a and 3b are fixed by a pressure insertion thereof in the holes of the block-shaped portions 1c and 1d of the bobbin 1.
  • the core 4 is inserted in the bobbin 1 having the winding 2 thereon, and an end of the core 4 opposite to the magnetic pole face 4a thereof is caulked at the yoke 5, to thus complete a core assembly X1.
  • armature 6 is caulked at a portion 6a of the hinge spring 7, to thus complete an armature assembly X2.
  • holes 7a and 7b of the armature assembly X2 are fitted into the respective protrusions (not shown) of the under face of the yoke 5 of the core assembly X1, to thus complete the electromagnet assembly X.
  • the electromagnet assembly X is inserted into the cylindrical insulating barrier 8a of the base block 8, and the armature 6 is linked by the card 12 to the movable contact spring 9, and thereafter, the entire relay is covered by the box 13, to thus complete the overall assembly thereof.
  • the electromagnetic relay according to the present invention can be made in a small size, which improves the anti-surging characteristic and the anti-noise characteristic.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Switch Cases, Indication, And Locking (AREA)
EP91305903A 1990-06-29 1991-06-28 Small sized electromagnetic relay Expired - Lifetime EP0463884B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP68448/90U 1990-06-29
JP1990068448U JP2515656Y2 (ja) 1990-06-29 1990-06-29 電磁継電器

Publications (3)

Publication Number Publication Date
EP0463884A2 EP0463884A2 (en) 1992-01-02
EP0463884A3 EP0463884A3 (ko) 1994-01-12
EP0463884B1 true EP0463884B1 (en) 1998-09-02

Family

ID=13374002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91305903A Expired - Lifetime EP0463884B1 (en) 1990-06-29 1991-06-28 Small sized electromagnetic relay

Country Status (5)

Country Link
EP (1) EP0463884B1 (ko)
JP (1) JP2515656Y2 (ko)
KR (1) KR0124420B1 (ko)
DE (1) DE69130087T2 (ko)
HK (1) HK1010767A1 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0579832B1 (en) * 1991-04-09 1999-10-06 Omron Corporation Electromagnetic relay
IT226720Z2 (it) * 1992-06-25 1997-07-01 Abb Elettrocondutture Spa Dispositivo attuatore elettromagnetico polarizzato
JP4252739B2 (ja) * 2001-04-27 2009-04-08 富士通コンポーネント株式会社 電磁継電器
CN104217898B (zh) * 2014-09-11 2016-04-27 海拉（厦门）汽车电子有限公司 一种小型印制板式电磁继电器

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50106639U (ko) * 1973-10-03 1975-09-02
DE2813150A1 (de) * 1978-03-25 1979-09-27 Grundig Emv Schiebe-mehrfachumschalter und verfahren zur herstellung
DE2912800C2 (de) * 1979-03-30 1985-04-25 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais für hohe Schaltleistungen
JPS5760633A (en) * 1980-09-26 1982-04-12 Fujitsu Ltd Solenoid relay
DE3311308C1 (de) * 1983-03-28 1984-10-25 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung für ein Relais
JPS6084050U (ja) * 1983-11-14 1985-06-10 日本電気株式会社 有極電磁継電器
DE8412246U1 (de) * 1984-04-18 1987-08-27 Hengstler GmbH, Geschäftsbereich Haller-Relais, 7209 Wehingen Kleinstrelais
JPH0421234Y2 (ko) * 1984-12-04 1992-05-14
US4656733A (en) * 1985-09-03 1987-04-14 Omron Tateisi Electronics Co. Method of manufacture of base assembly for an electromagnetic relay
DE8612616U1 (de) * 1986-05-09 1988-09-29 Hengstler Bauelemente GmbH, 7209 Wehingen Elektromagnetisches Kleinstrelais
JPS6352243U (ko) * 1986-09-24 1988-04-08
JPS63149039U (ko) * 1987-03-20 1988-09-30
CH676298A5 (ko) * 1987-07-20 1990-12-28 Schrack Elektronik Ag
JP2605786B2 (ja) * 1988-03-09 1997-04-30 オムロン株式会社 電磁継電器
JPH0723882Y2 (ja) * 1988-03-14 1995-05-31 オムロン株式会社 電磁継電器におけるコイル接続構造
JPH01140741U (ko) * 1988-03-19 1989-09-27

Also Published As

Publication number Publication date
JPH0427546U (ko) 1992-03-04
KR920001590A (ko) 1992-01-30
EP0463884A2 (en) 1992-01-02
KR0124420B1 (ko) 1997-12-15
DE69130087T2 (de) 1999-05-12
HK1010767A1 (en) 1999-06-25
DE69130087D1 (de) 1998-10-08
JP2515656Y2 (ja) 1996-10-30
EP0463884A3 (ko) 1994-01-12

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