US3824511A - Electromagnetic relay - Google Patents
Electromagnetic relay Download PDFInfo
- Publication number
- US3824511A US3824511A US00351103A US35110373A US3824511A US 3824511 A US3824511 A US 3824511A US 00351103 A US00351103 A US 00351103A US 35110373 A US35110373 A US 35110373A US 3824511 A US3824511 A US 3824511A
- Authority
- US
- United States
- Prior art keywords
- base
- contact springs
- relay
- contact
- 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
Links
Images
Classifications
-
- 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
- H01H50/56—Contact spring sets
-
- 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
- H01H50/043—Details particular to miniaturised relays
- H01H2050/044—Special measures to minimise the height of the relay
Definitions
- Electromagnetic relay having a relatively thin insulating member as the base for the relay which forms a mounting for the electromagnet, armature and relay contactsn
- the contacts for the relay comprise a series of sets of contact springs.
- Each set of contact springs is spaced along the base and arranged on opposite sides of an acutator member for, the contacts and 10 Claims, 7 Drawingv Figures ELECTROMAGNETIC RELAY FIELD OF THE INVENTION
- Electromagnetic relay having a base of insulating material and forming a common attachment means for the contact means and magnetic system of the relay.
- the present invention provides a relay with a common base made from insulating material, forming a base both for the contact springs and magnet system and arranged for use on conductor plates and having a very low height and a simple assembly, providing good functional control and ready exchange of individual parts.
- This is attained by designing the insulating base for the relay as a flat relatively thin member having a bottom side serving as a soldering side and having all functional elements of the relay arranged one after the other to accommodate ready inspection and repair of the relay.
- This relay construction has the advantage that the assembly can be carried out in a simple and expeditious manner either by hand or machine.
- the particular arrangement of contact spring operating member and magnet system on one level along the insulating base enables the contact members to be inserted in the base independently of each other and to be readily adjusted or exchanged.
- the attachment of the individual contact parts may be in the form of ribs projecting upwardly from opposite sides of the insulating base and extending parallel to the direction of movement of the contact springs.
- the contact springs are attached between two'opposite ribs of the insulating member as by gluing, pressing, etc.
- the simplest way is by anchoring the contact springs by integral contact flaps, which may extend at right angles to the contact springs. All electrical connections to the contact springs and the relay coil.
- the contact springs are generally L-shaped with the short leg of the L forming a soldering leg and the long leg of the L forming a contact leg, movable in a direction parallel to the basic plane of the base.
- all contact springs are inserted individually in slots formed in attachment ribs of the base.
- the contact springs may, however, be inserted as a prefabricated block, as for example, molded into the insulating base of the relay, and anchored between the attachment ribs.
- the contact springs may be arranged in two rows with their free ends facing each other. All contact springs of the relay may be operated by a common shifter arranged between the two rows of contact springs, which may serve as an intermediate insulating wall between the facing ends of the contact springs and thereby enable the distances between the rows of contact springs to be maintained at a minimum distance.
- a further advantage of the present invention is the arrangement of the magnet system for the relay in such a way that it is anchored to extend parallel to the basic plane of the insulating base and movement of the armature is parallel to this plane.
- This is attained by rib or support wall serving as an attachment wall for the magnet system and extending inwardly from the attachment ribs for the contact springs.
- the magnet system can be assembled and located in an exact position at one end of the base to extend transversely thereof prior to the assembly of the contact springs.
- the magnet assembly being accurately assembled in position, it is unnecessary to later adjust the position of the magnet assembly after assembly of the contact springs to the base.
- the magnet assembly may be attached by means of a screw extending through a yoke for the electromagnet and a lug or rib extending inwardly of the attachment lugs for the contact springs.
- FIG. 1 is a partial horizontal sectional view taken through a relay constructed in accordance with the principles of the present invention looking at the relay assembly in plan.
- FIG. 2 is a transverse sectional view taken substantially along line A-B of FIG. 1'.
- FIG. 3 is a modified form of contact arrangement and operating means therefor from that shown in FIGS. 1 and 2.
- FIG. 4 is a partial fragmentary sectional view taken through the attachment means for the yoke and magnet coil to the base.
- FIG. 5 is a sectional view taken substantially along line C-D of FIG. 4.
- FIG. 6 is an exploded view illustrating the return spring, the contact actuator and a portion of the armature moving the actuator against the return spring;
- FIG. 7 is a partial fragmentary view with parts in section illustrating a different connection of the actuator to the return spring from that shown in FIG. 6.
- FIGS. 1 and 2 illustrate the basic structure of the relay of the present invention.
- the relay includes a base 1 made from a suitable insulating material and designed as a flat thin part.
- the base has marginal side and end walls 1a and lb respectively.
- the side and end walls may be shouldered to receive a cover 20 which with said base and side and end walls, forms a housing for the relay.
- An electromagnetic system for the relay is shown as including a yoke 2 supporting an electromagnetic coil 5 and shown in FIG. 1 as being secured to a lug 4 extending inwardly of an end wall lb.
- the magnetic system includes a core 50, and disks 6 and 6a for the electromagnet and an electrically energizable winding 7 wound about the core 50 between said end disks.
- the electromagnetic system also includes an armature 8 of an angular form rockable about the free end of the yoke 2 to actuate an actuator 16 against a return spring 17, seated in the opposite wall of the base from the electromagnet 5 and returning said actuator and armature into the position shown in FIG. 1, upon deenergization of the electromagnet.
- a support plate 9 is supported on the lug 4 under the head of the screw 3 to limit the tightening of the screw on the lug 4 and yoke 2.
- the support plate 9 has a connecting lug 10 formed as a part thereof and extending through the bottom of the base 1, to serve as a ground connection (FIG. 4).
- the positive energizing terminal for the electromagnetic coil may also extend through the bottom of the base and is of a well-known form so need not herein be 4 1 shown or described in detail.
- Contact springs l2, l3 and 14 are symmetrically arranged alongthe base 1 in two rows and extend toward each other from attachment ribs projecting upwardly from the top of said base and inwardly of the side walls 1b.
- the individual contact springs have right-angled contact legs 12a forming solder legs and have a resilient contact leg 12b.
- the contact springs 12, 13 and 14 extend along slots 15a formed in the ribs 15 and may be glued or otherwise secured thereto. As shown in FIG. 1, thecontact springs 14 are resting contact springs biased to make contact with the middle contact springs l3'and biasing said middle contact springs into contact engagement with the contact springs 12.
- the contact springs may be made of one piece 0 may be composed of two parts.
- the solder leg 12a for contact springs 12 may be of a larger thickness than the spring leg 12b, which may be welded or otherwise secured thereto.
- the actuator or shifter 16 serves as a divider between the sets of contacts on opposite sides thereof and has three sets of oppositely extending lugs 16a each of which oppositely extending aligned lugs extend between the contact springs 12 and 14.
- the actuator has a reduced diameter end portion 27 extendingupwardly from the center thereof through anapertured portion 28 of the return spring 17.
- the return spring 17 is shown as being a bowed spring abutting the inside of the wall 1a of the base 1'.
- the opposite end of the actuator is shown as having lugs 25'depending from opposite sides thereof and extending within slots 26 formed in the inwardly extending leg of the armature 8.
- the armature 8 Upon energization of the magnet coil 5 of the electromagnet, the armature 8 will rock about the end of the yoke 2 and move the actuator 16 against the spring 17.
- the actuator lugs 16a will engage under the contact springs 14 and move said contact springs 14 out of engagement with the contact springs 13.
- the contact springs 12 will thus engage the contact springs 13 by their own bias to make an electrical connection between the contacts 12 and 13.
- the contacts as shown in FIG. 1, are thus indirectly operated self-pressure contacts and in the case of a non-excited magnet system, the resting contact springs 14 contact the middle contacts 13 by their own bias while the working contacts 12 are lifted from the middle contacts 13 by the lugs 16a of the actuator 16 by the stored up energy of the return spring 17.
- the rib 15 adjacent the armature 8 is so formed as to extendclosely adjacent the armature 8 and serve as a retainer for said armature and to prevent said armature from shifting out of place tion of the magnet coil is moved by a lug 16a to engage a working contact 23.
- FIGS. 4 and 5 detail sectional views are shown illustrating the mounting of the magnet yoke 2 on the lug 4 by a screw 3. Tightening of the screw brings the entire magnetic system, including the yoke, the electromagnetic coil and armature in fixed relation with respect to the contact springs and also secures the connecting lug to project from the base 1 and form a terminal for grounding the magnet coil.
- a glue or resin drop 24 is inserted in the hollow space between the yoke 2 and the screw 3, to provide a gluing as well as bolting connection for the yoke and magnet coil.
- FIG. 6 shows the connection between the armature 8, the shifter 16 and the return spring 17.
- Said shifter 16 has depending lugs 25 fitting into slots 26 of the armature 8.
- the opposite end of said shifter 16 has a reduced diameter end portion in the form of a peg 27 projecting upwardly therefrom into the apertured portion 28 of the return spring 17. This connection materially reduces friction during operation of the shifter.
- FIG. 7 we have shown an actuator 16 like that shown in FIG. 6, except in place of the peg 27, the actuator has a semispherical headed end 29 fitting within a socket formed in the return spring 17 as by a pressing operation. This form of connection reduces friction and wear between the actuator and return spring.
- a magnetic coil between said side walls at one end of said base and having an axis extending parallel to a plane top surface of said base
- a yoke detachably supported on a side wall of said base and supporting said magnet coil to extend along one end of said base
- the bottom surface of said base forming a connector side for said coil and for said contact springs and the side walls of said base forming insulated surfaces, the contact springs, actuator, armature, return spring and magnet coil being arranged adjacent each other with the operative parts parallel with the plane of the top surface of said base and movable in said plane.
- the electromagnetic relay of claim 2 in which the contact springs are L-shaped in plan and have a short leg extending through a slot and window and forming a terminal leg and a long leg forming a contact leg.
- contact springs are each in sets of three and comprise mobile contact springs facing each other and the actuator is arranged between said rows of contact springs and is made from an insulating material for shifting'certain of said contact springs in one direction upon energization of said electromagnetic coil and in an opposite direction upon deenergization of said coil by the action of said return spring.
- the electromagnetic relay of claim 6, including an angled armature having one leg extending along an end of said electromagnetic coil, a second leg at an angle to said one leg and extending along said yoke and having a fulcrum point on the end of said yoke effecting movement of said armature parallel to the basic plane of said base.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2218494 | 1972-04-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3824511A true US3824511A (en) | 1974-07-16 |
Family
ID=5842198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00351103A Expired - Lifetime US3824511A (en) | 1972-04-17 | 1973-04-12 | Electromagnetic relay |
Country Status (14)
Country | Link |
---|---|
US (1) | US3824511A (hu) |
JP (1) | JPS5710534B2 (hu) |
AT (1) | AT333365B (hu) |
CH (1) | CH560966A5 (hu) |
CS (1) | CS167381B2 (hu) |
DE (1) | DE2218494B1 (hu) |
DK (1) | DK140196C (hu) |
ES (1) | ES413289A1 (hu) |
FR (1) | FR2180839B1 (hu) |
GB (1) | GB1408677A (hu) |
IT (1) | IT983739B (hu) |
NL (1) | NL7304932A (hu) |
SE (1) | SE393708B (hu) |
YU (1) | YU35295B (hu) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4034323A (en) * | 1975-03-24 | 1977-07-05 | Oki Electric Industry Company, Ltd. | Magnetic relay |
US4101856A (en) * | 1976-04-07 | 1978-07-18 | Fritz Kolle | Electrical switching relay construction and housing therefor |
US4259652A (en) * | 1979-04-30 | 1981-03-31 | Eltra Corporation | Reversing relay for permanent magnet DC motor |
US4346359A (en) * | 1980-01-21 | 1982-08-24 | Siemens Aktiengesellschaft | Relay |
EP0063487A2 (en) * | 1981-04-17 | 1982-10-27 | Takamisawa Electric Co., Ltd. | Electromagnetic relay |
US4688010A (en) * | 1984-12-22 | 1987-08-18 | Matsushita Electric Works, Ltd. | Electromagnetic relay |
US20130115829A1 (en) * | 2010-07-27 | 2013-05-09 | Fuji Electric Co., Ltd. | Contact mechanism, and electromagnetic contactor using the contact mechanism |
CN104851750A (zh) * | 2014-02-19 | 2015-08-19 | 富士通电子零件有限公司 | 电磁继电器 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2449457C3 (de) * | 1974-10-19 | 1982-09-30 | Rausch & Pausch, 8672 Selb | Klappankerrelais |
SE393733C (sv) * | 1974-12-16 | 1979-11-26 | Ericsson Telefon Ab L M | Kontaktfjeder |
IT1059599B (it) * | 1975-04-15 | 1982-06-21 | Int Standard Electric Corp | Rele di tipo minatura perfezionato |
IT1075619B (it) * | 1977-02-02 | 1985-04-22 | Equipaggiamenti Meccanico Elet | Rele' elettromagnetico piatto |
FR2452777A1 (fr) * | 1977-11-24 | 1980-10-24 | Kuke Kg Fritz | Relais electromagnetique, notamment microrelais de puissance |
DE2813822C2 (de) * | 1978-03-31 | 1982-11-18 | Rausch & Pausch, 8672 Selb | Elektromagnetisches Schaltrelais |
DE3148759A1 (de) * | 1981-12-09 | 1983-07-07 | Siemens AG, 1000 Berlin und 8000 München | Elektromagnetisches relais |
DE3335809A1 (de) * | 1983-10-01 | 1985-04-18 | Brown, Boveri & Cie Ag, 6800 Mannheim | Elektromagnetisches schaltgeraet |
DE3400502A1 (de) * | 1984-01-10 | 1985-07-18 | Danfoss A/S, Nordborg | Elektrisches relais |
GB8717083D0 (en) * | 1987-07-20 | 1987-08-26 | Gen Electric Co Plc | Electric switches |
JP4424260B2 (ja) * | 2005-06-07 | 2010-03-03 | オムロン株式会社 | 電磁リレー |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2259183A (en) * | 1939-12-23 | 1941-10-14 | Union Switch & Signal Co | Electrical relay |
US2755356A (en) * | 1950-11-21 | 1956-07-17 | Jucker Julius | Electromagnetic relays |
US2886668A (en) * | 1956-08-06 | 1959-05-12 | Jennings Radio Mfg Corp | Multiple pole vacuum switch |
US2951922A (en) * | 1958-11-07 | 1960-09-06 | Vapor Heating Corp | Electrical contactor assembly |
US3042774A (en) * | 1959-03-27 | 1962-07-03 | Jennings Radio Mfg Corp | Vacuum switch |
US3509502A (en) * | 1967-11-07 | 1970-04-28 | Gen Signal Corp | Electromagnetic relay structure |
-
1972
- 1972-04-17 DE DE2218494A patent/DE2218494B1/de not_active Ceased
-
1973
- 1973-03-16 CH CH384073A patent/CH560966A5/xx not_active IP Right Cessation
- 1973-03-20 YU YU753/73A patent/YU35295B/xx unknown
- 1973-03-28 AT AT273073A patent/AT333365B/de not_active IP Right Cessation
- 1973-04-03 ES ES413289A patent/ES413289A1/es not_active Expired
- 1973-04-09 NL NL7304932A patent/NL7304932A/xx not_active Application Discontinuation
- 1973-04-10 IT IT22793/73A patent/IT983739B/it active
- 1973-04-12 US US00351103A patent/US3824511A/en not_active Expired - Lifetime
- 1973-04-13 GB GB1793073A patent/GB1408677A/en not_active Expired
- 1973-04-16 SE SE7305387A patent/SE393708B/xx unknown
- 1973-04-16 CS CS2716A patent/CS167381B2/cs unknown
- 1973-04-16 DK DK207373A patent/DK140196C/da active
- 1973-04-16 JP JP4304173A patent/JPS5710534B2/ja not_active Expired
- 1973-04-16 FR FR7313694A patent/FR2180839B1/fr not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2259183A (en) * | 1939-12-23 | 1941-10-14 | Union Switch & Signal Co | Electrical relay |
US2755356A (en) * | 1950-11-21 | 1956-07-17 | Jucker Julius | Electromagnetic relays |
US2886668A (en) * | 1956-08-06 | 1959-05-12 | Jennings Radio Mfg Corp | Multiple pole vacuum switch |
US2951922A (en) * | 1958-11-07 | 1960-09-06 | Vapor Heating Corp | Electrical contactor assembly |
US3042774A (en) * | 1959-03-27 | 1962-07-03 | Jennings Radio Mfg Corp | Vacuum switch |
US3509502A (en) * | 1967-11-07 | 1970-04-28 | Gen Signal Corp | Electromagnetic relay structure |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4034323A (en) * | 1975-03-24 | 1977-07-05 | Oki Electric Industry Company, Ltd. | Magnetic relay |
US4101856A (en) * | 1976-04-07 | 1978-07-18 | Fritz Kolle | Electrical switching relay construction and housing therefor |
US4259652A (en) * | 1979-04-30 | 1981-03-31 | Eltra Corporation | Reversing relay for permanent magnet DC motor |
US4346359A (en) * | 1980-01-21 | 1982-08-24 | Siemens Aktiengesellschaft | Relay |
EP0063487A2 (en) * | 1981-04-17 | 1982-10-27 | Takamisawa Electric Co., Ltd. | Electromagnetic relay |
EP0063487A3 (en) * | 1981-04-17 | 1983-08-31 | Takamisawa Electric Co., Ltd. | Electromagnetic relay |
US4688010A (en) * | 1984-12-22 | 1987-08-18 | Matsushita Electric Works, Ltd. | Electromagnetic relay |
US20130115829A1 (en) * | 2010-07-27 | 2013-05-09 | Fuji Electric Co., Ltd. | Contact mechanism, and electromagnetic contactor using the contact mechanism |
CN104851750A (zh) * | 2014-02-19 | 2015-08-19 | 富士通电子零件有限公司 | 电磁继电器 |
EP2911175A1 (en) * | 2014-02-19 | 2015-08-26 | Fujitsu Component Limited | Electromagnetic relay |
US9793078B2 (en) | 2014-02-19 | 2017-10-17 | Fujitsu Component Limited | Electromagnetic relay |
Also Published As
Publication number | Publication date |
---|---|
ATA273073A (de) | 1976-03-15 |
DK140196B (da) | 1979-07-02 |
IT983739B (it) | 1974-11-11 |
FR2180839B1 (hu) | 1977-09-02 |
CH560966A5 (hu) | 1975-04-15 |
YU35295B (en) | 1980-10-31 |
JPS5710534B2 (hu) | 1982-02-26 |
DE2218494B1 (de) | 1973-10-11 |
FR2180839A1 (hu) | 1973-11-30 |
AT333365B (de) | 1976-11-25 |
GB1408677A (en) | 1975-10-01 |
CS167381B2 (hu) | 1976-04-29 |
JPS4916847A (hu) | 1974-02-14 |
YU75373A (en) | 1980-04-30 |
ES413289A1 (es) | 1976-01-16 |
DK140196C (da) | 1979-11-26 |
NL7304932A (hu) | 1973-10-19 |
SE393708B (sv) | 1977-05-16 |
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