US3430165A - Electromagnetic cylindrical miniature relay - Google Patents

Electromagnetic cylindrical miniature relay Download PDF

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Publication number
US3430165A
US3430165A US577205A US3430165DA US3430165A US 3430165 A US3430165 A US 3430165A US 577205 A US577205 A US 577205A US 3430165D A US3430165D A US 3430165DA US 3430165 A US3430165 A US 3430165A
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US
United States
Prior art keywords
relay
armature
miniature relay
contact
cylindrical
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
US577205A
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English (en)
Inventor
Horst Hermann Mussbach
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of US3430165A publication Critical patent/US3430165A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil

Definitions

  • the invention relates to an electromagnetic cylindrical miniature relay in which the excitation coil is arranged in a yoke, formed as a pot-shaped housing, with a concentric iron core.
  • German patent specification 1,103,466 describes a pot-shaped miniature relay in which the relay armature actuates the contacts through a pin of non-magnetic material inserted in it and borne shiftable in the axial hole of the core.
  • the contacts are arranged on the front side of the coil opposing the side of the armature.
  • This relay has the disadvantage that only the electro-magnetic part is constructed compactly and the contact spring set is located outside the cylindrical coil housing and is unprotected.
  • the trough-shaped armature is kept, by a pressure spring, at the lifting distance, and the resting position of the armature is established by touching a perforated disc of insulating material which serves to guide the actuating pins.
  • the cone-shaped pole is slotted down to the core and the coil wires are led through said slot or slots centrally to the contact support.
  • the relay can be packed air-tight most suitably with a compound mastic or lacquer.
  • the terminal side is con structed so that the relay can be plugged-in or solder din.
  • the contact support is preferably made of a transparent material.
  • An electromagnetic cylindrical miniature relay constructed according to the invention has various advantages. For example, an all-enclosed, replaceable element requiring little space is obtained in which all mova'ble components are arranged inside a cylinder, properly protected against the ingress of dust. Due to the particular construction of the contact spring set the adjustment is eased, because only the operating springs must be adjusted.
  • the cylindrical miniature relay shown as an embodiment of the invention requires only approximately 17 cm. space, despite the showing of twelve change-over contacts.
  • FIG. 1 shows an embodiment of a cylindrical miniature relay according to the invention, seen from the side and partly in section,
  • FIG. 2 shows the relay according to FIG. 1, seen from the bottom.
  • the cylindrical housing 1, shown in FIG. 1, is made as a can and simultaneously serves as a yoke.
  • the contacts are supported in the recess 2 of the cylindrical housing 1. This recess 2 also determines the lifting height of the relay.
  • the coil core 3 possesses a cone-shaped pole piece 4.
  • the coil body 6 of the excitation coil 7 is placed to bear against the frustum 5.
  • At least one slot 8 is milled into the cone-shaped pole piece 4 through which the coil wires 9 are led centrally to the contact'support 10.
  • the armature 11 consists of a cylindrical pot or can in the centre of which a hole is punched through which the coil wires 9 are led. The; armature 11 is kept to a lifting distance by a pressure spring 12.
  • a tube 13 of insulating material guides the pressure spring 12 in the chamber of the cylinder housing 1, extended by the recess 2, the contacts are accommodated.
  • the circular construction permits twelve changer-over contacts at a maximum which are actuated by pins 14, made of insulating material.
  • the contact support 10 consists of spray plastics, accommodating the contact spring sets.
  • the individual contact springs 15, 1-6, 17 are of the engaging type, supported towards sheared-off resilient flaps 18. Only the operating springs 17 have contacting rivets 19, while the other springs 15, 1-6 have contacting surfaces of an arbitrary contacting material.
  • the contact spring set can be tested and adjusted prior to assembling the relay.
  • the perforated disc 20, serving to guide the actuating pins 14, is fixed in its position towards the contact support 10 by tenon 21, in order to determine the direction of the actuating pins 14 after beading the top rim of the cylindrical housing 1 at the edge of the contact support 10 the relay is tightly closed.
  • the side of the soldering lugs or the terminal side, respectively, can be closed completely air-tight with lacquer. The contacts thereby remain completely free from dust.
  • the relay is fixed by means of a welded-on perforated rail or bar, a clamp or a threaded ring.
  • FIG. 2 shows the ray-shaped arrangement of twelve change-over contacts on the contact support 10 of the relays bottom side. Circles 22 indicate the soldering lugs or plug pins, connected to the terminal wires of the excitation part.
  • An electromagnetic cylindrical miniature relay comprising an excitation coil, an iron core aligned concentrically within said excitation coil, said iron core terminating in a cone-shaped pole extended outside the excitation coil, a pot-shaped armature having an open side, means retaining said pot-shaped armature in a position enabling it to partially surround the cone-shaped pole, said means keeping said pot-shaped armature in contact with a plurality of contact springs through actuating pins, and said means permitting said pot-shaped armature to move responsive to a change in a magnetic field induced in said excitation coil, whereby the actuating pins are caused to change position relative to said contact springs and to alter the positions of the contact springs and provide switching functions.
  • An electromagnetic cylindrical miniature relay substantially according to claim 1, in which the pot-shaped armature is kept at a lifting distance by a pressure spring and the resting position of the armature is determined by touching a perforated disc made of insulating material, said perforated disc including means for guiding the actuating pins.
  • An electromagnetic cylindrical miniature relay according to claim 1 in which twelve change-over contacts are arranged in a radial formation on the circular contact support closing the relay at one end.
  • An electromagnetic cylindrical miniature relay according to claim 1 including an air-tight packing of compound mastic encapsulating the whole.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Springs (AREA)
US577205A 1965-09-18 1966-09-06 Electromagnetic cylindrical miniature relay Expired - Lifetime US3430165A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST024402 1965-09-18

Publications (1)

Publication Number Publication Date
US3430165A true US3430165A (en) 1969-02-25

Family

ID=7460102

Family Applications (1)

Application Number Title Priority Date Filing Date
US577205A Expired - Lifetime US3430165A (en) 1965-09-18 1966-09-06 Electromagnetic cylindrical miniature relay

Country Status (6)

Country Link
US (1) US3430165A (enrdf_load_html_response)
CH (1) CH447380A (enrdf_load_html_response)
DE (1) DE1514776A1 (enrdf_load_html_response)
FR (1) FR1499443A (enrdf_load_html_response)
GB (1) GB1119995A (enrdf_load_html_response)
NL (1) NL6612944A (enrdf_load_html_response)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604597A (en) * 1982-07-30 1986-08-05 Robert Bosch Gmbh Solenoid switch suitable for motor starters
US20230178319A1 (en) * 2020-06-17 2023-06-08 Xiamen Hongfa Electric Power Controls Co., Ltd. Connecting structure between lead-out pins of auxiliary stationary contacts and yoke plate of dc relay

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823184A1 (de) * 1988-07-08 1990-01-11 Messerschmitt Boelkow Blohm Elektrisches bauelement

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1333542A (en) * 1918-07-01 1920-03-09 Harry G Geissinger Lifting-magnet
US2444198A (en) * 1944-04-01 1948-06-29 Cook Electric Co Hermetically sealed electromagnetic relay
US2743331A (en) * 1955-01-21 1956-04-24 W L Maxson Corp Snap switch
US2790876A (en) * 1954-03-22 1957-04-30 Elgin Instr Company Relay
US2891199A (en) * 1955-01-20 1959-06-16 Ugon Pierre Eugene Electromagnetic device
US2905788A (en) * 1957-03-14 1959-09-22 Potter & Blomfield Inc Contact structures for relays
US3248508A (en) * 1963-09-25 1966-04-26 Appleton Electric Co Switch box circuit controller having three circuit controlling conditions

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1333542A (en) * 1918-07-01 1920-03-09 Harry G Geissinger Lifting-magnet
US2444198A (en) * 1944-04-01 1948-06-29 Cook Electric Co Hermetically sealed electromagnetic relay
US2790876A (en) * 1954-03-22 1957-04-30 Elgin Instr Company Relay
US2891199A (en) * 1955-01-20 1959-06-16 Ugon Pierre Eugene Electromagnetic device
US2743331A (en) * 1955-01-21 1956-04-24 W L Maxson Corp Snap switch
US2905788A (en) * 1957-03-14 1959-09-22 Potter & Blomfield Inc Contact structures for relays
US3248508A (en) * 1963-09-25 1966-04-26 Appleton Electric Co Switch box circuit controller having three circuit controlling conditions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604597A (en) * 1982-07-30 1986-08-05 Robert Bosch Gmbh Solenoid switch suitable for motor starters
US20230178319A1 (en) * 2020-06-17 2023-06-08 Xiamen Hongfa Electric Power Controls Co., Ltd. Connecting structure between lead-out pins of auxiliary stationary contacts and yoke plate of dc relay

Also Published As

Publication number Publication date
CH447380A (de) 1967-11-30
GB1119995A (en) 1968-07-17
DE1514776A1 (de) 1969-08-14
NL6612944A (enrdf_load_html_response) 1967-03-20
FR1499443A (fr) 1967-10-27

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