US2609462A - Polarized relay - Google Patents
Polarized relay Download PDFInfo
- Publication number
- US2609462A US2609462A US130047A US13004749A US2609462A US 2609462 A US2609462 A US 2609462A US 130047 A US130047 A US 130047A US 13004749 A US13004749 A US 13004749A US 2609462 A US2609462 A US 2609462A
- Authority
- US
- United States
- Prior art keywords
- armature
- contacts
- leaf spring
- springs
- insulating
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/22—Polarised relays
- H01H51/2272—Polarised relays comprising rockable armature, rocking movement around central axis parallel to the main plane of the armature
- H01H51/2281—Contacts rigidly combined with armature
Definitions
- the present nvention relates to polarised relays and more particularly to high speed polarised relays such as of the kind known as Carpenter relays, and has for its object to provide an improved contact assembly whereby bouncing of the contacts is reduced to a minimum.
- the moving contacts carried by th balanced armature are supported by a spring arrangement comprising a central leaf spring which carries an insulated member at its free end by which the contacts are supported, and wherein two further leaf springs are disposed one on each side of the first leaf spring, each being secured at one end to the armature and having their free ends pressing on opposite sides of the insulating member carrying the contacts.
- the free ends of this pair of outer leaf springs should press on the insulating material as closely as possible to the contacts, and according to a feature of the invention the portions of the surface of the insulating material between the contacts and the free ends of the leaf springs is provided with a ridge, groove or the like for increasing the surface length of the insulating material between the contacts and the springs in order to reduce electrical leakage between these members.
- Fig. 1 shows a front View, partly in section, of a relay according to the invention
- FIG. 1 shows a side view of Fig. 1;
- Fig. 3 shows a back view of Fig. 1;
- Fig. 4 shows a section along the line 4-4 in Fig, 1; i i i Fig. 5 shows an enlarged perspective view of the armature assembly;
- Fig. 6 shows a front view of a modified construction
- Fig. 7 shows a side view of Fig. 6.
- the relay comprises a non-magnetic frame I, preferably made as a die-casting, having a cavity in the back thereof into which fits a permanent magnet 2.
- the permanent magnet engages with an L-shaped pole piece 3 of magnetic material which is secured to the framework by screws 4, also of magnetic material, which also clamp to the front of the frame I a plurality of laminations 5 forming amagnetic core carrying the bobbin 6.
- the laminations 5 have a magnetic gap 1 within which is located the lower end of the armature 8 which is mounted for rocking movement about a fiat spring 9, cpposite ends of which are clamped in a bracket member If! secured to the front of the frame I.
- the armature is made of two plates 8, 8" between which the spring 9 is clamped, pole shoes ll being formed at the upper ends of these plates so as to lie opposite a pole piece 12 in contact with the upper end of the magnet 2.
- This pole piece I2 is. adjustable towards and away from the pole shoes H by means of the screws 13 movable in slots (not shown) in the frame member I, whereby the gap between the pole shoes I I and the pole piece I: may be adjusted.
- the upper end of the armature carries movable contacts I4 adapted to co-operate. with fixed contacts l5 carried by the framework, as more fully hereinafter described.
- the bobbin 6 may carry one or more windings according to requirements, the various contacts and windings being connected to insulated contact pins l 6 projecting through a base member 11, the whole relay being enclosed by a cover 18.
- the movable, contacts 14 are carried by'a leaf spring is secured between the two plates 8, 8 constituting the armature and projecting from the upper end thereof.
- the free end of the leaf spring I9 is enlarged in area, as shown at 20, and provided with an aperture 2
- To each side of the upper end of the armature is also secured a leaf spring 23 of thinner material than the main leaf spring E9, the free ends.
- each of the springs 23 bearing on opposite sides of the insulating member 22 and as close as possible to the associated contact M, the moulded insulating member being formed with a small ridge 24 on each side, each of which lies between the free end of the leaf spring 23 bearing on that side and the adjacent contact I4. Electrical connection with the movable contacts is effected by fiexible leads 40.
- the relay shown is a double-pole relay and carries two sets of contacts l4 and associated leaf. springs l9 and 23 from the top of the armature, the movable contacts 14 being adapted to engage with two sets of fixed contacts E5 on each side thereof. It will be understood, however, that the relay may be constructed with only a single movable contact assembly with a fixed contact on each side thereof, or alternatively with more than two movable contact assemblies and a corresponding number of fixed contacts.
- each of the fixed contacts is carried by a strong leaf spring 25 which is secured at one end by a screw 26 to a U-shaped metal member 21 of which the limbs slide in grooves or channels 28 at opposite faces of an insulating block 29 car ried by the frame l.
- the other end of the spring 25 frictionally engages the surface of the metal member 21.
- a threaded pin 30 projects from opposite sides of the insulating member and spaced from the movable contacts carried thereby.
- Figs. 6 and 7 show a modified arrangement for adjusting. the fixed contacts.
- the contacts l2 are carried bystrong leaf springs 35 from metal blocks 36 supported in an insulating manner from the frame I. Through each of these blocks passes an adjusting screw 37, the inner end of which bears on the end of the leaf spring 35 to move it and the contact I5 carried thereby towardsor away from the armature contact.
- the block 36 is formed with a slot 33 across which the screw 3] passes, tightening the screw 39 to close the gap causing the screw 31 to be locked inthe adjusted position.
- a balanced armature assembly comprising an armature, a central leaf spring extending from said armature, an insulating member mounted adjacent the free end of said central leaf spring, electric contacts carried by said insulating member, and two outer damping leaf springs disposed respectively on each side of said central leaf spring, said outer springs being each secured at one of their ends to the armature and having their free ends pressing respectively on opposite sides of the insulating memher and spaced from the contacts carried thereby.
- a balanced armature assembly comprising an armature, a central leaf spring projecting from said armature, an aperture in said central spring, a member of insulating material leaf spring is formed with a ridge.
- a balanced armature assembly comprising an armature, at least two central leaf springs projecting from said armature and with their surfaces lying in the same plane, each of which carries an insulating member carried at thefree end of each of said central leaf springs, movable contacts carried by said insulating membersand projecting from opposite surfaces thereof, a plurality of pairs of outer leaf springs each pair being associated with one of the central leaf springs, the springs of each pair being disposed respectively one on each side of the asso ciated central leaf spring, said outer springs being secured at one of their ends to the armature and having their free ends pressing respectively on opposite sides of the insulating member of the associated central leaf spring and spaced from the movable contacts carried thereby.
- each central leaf spring is formed with an aperture within which the insulating member is secured, a conducting member passing through the insulating member and projecting from opposite sides thereof to form the movable contacts.
- T17 Device as claimed in claim 6, wherein the surfaces of the insulating members are formed withridges positioned between the movable contacts and the free ends of the adjacent outer leafsprings.
- a balanced armature assembly comprising an armature, a central leaf spring projecting from said armature, at least one slot in said leaf spring dividing said central leaf spring into at least two limbs each of which carries an insulating member at its free end, movable contacts carried by said insulating members and projecting from opposite surfaces thereof, a plurality of pairs of outer leaf springs each pair being associated with one of the limbs, the springs of each pair being disposed respectively one on each side of the associated limb, said outer springs being secured at one of their ends to the armature and having their free ends pressing respectively on opposite sides of the insulating member of the associated limb and spaced from the movable contacts carried thereby.
- each limb is formed with an aperture within which the insulating member is secured, a conducting member passing through the insulating member and projecting from opposite sides thereof to form the movable contacts.
- a balanced armature assembly comprising an armature, a central leaf spring extending from said armature, an insulating member mounted adjacent the free end of said central leaf spring, electric contacts carried by said insulating member, and two outer damping leaf springs disposed respectively on each side of said central leaf spring, said outer springs being made of thinner materia1 than the central leaf spring and being secured at one of their ends to the armature and having their free ends pressing respectively on opposite sides of the insulating 6 member and spaced from the contacts carried thereby.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB30981/48A GB650207A (en) | 1948-11-29 | 1948-11-29 | Improvements in or relating to polarised relays |
Publications (1)
Publication Number | Publication Date |
---|---|
US2609462A true US2609462A (en) | 1952-09-02 |
Family
ID=10316119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US130047A Expired - Lifetime US2609462A (en) | 1948-11-29 | 1949-11-29 | Polarized relay |
Country Status (5)
Country | Link |
---|---|
US (1) | US2609462A (fr) |
BE (1) | BE492459A (fr) |
FR (1) | FR1006837A (fr) |
GB (1) | GB650207A (fr) |
NL (2) | NL74909C (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2718570A (en) * | 1954-02-05 | 1955-09-20 | Conrad C Caldwell | Electric vibrator contact dampening means |
US2866028A (en) * | 1955-06-14 | 1958-12-23 | Bristol Company | Electrically actuated contactor |
US2866025A (en) * | 1955-03-21 | 1958-12-23 | Gen Electric | Non-bouncing switching apparatus |
US2902563A (en) * | 1954-11-23 | 1959-09-01 | Vigren Sten Daniel | Polarized electromagnetic control devices |
US2908783A (en) * | 1954-01-25 | 1959-10-13 | Ugon Pierre Eugene | Electromagnetic devices |
US2928915A (en) * | 1955-06-11 | 1960-03-15 | Vigren Sten Daniel | Arrangement in polarized relays |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE540821A (fr) * | 1954-08-27 | |||
NL201679A (fr) * | 1954-11-03 | |||
FR2680432B1 (fr) * | 1991-08-14 | 1994-04-08 | Olivier Bruni | Realisation d'un inverseur pour relais electromagnetique a l'aide d'une armature mobile rotative de masse reduite. |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1269917A (en) * | 1916-09-30 | 1918-06-18 | Hall Switch & Signal Co | Contact-finger. |
US1861641A (en) * | 1930-11-17 | 1932-06-07 | Union Switch & Signal Co | Contact device |
US1893856A (en) * | 1928-11-09 | 1933-01-10 | Broughton Denis Mcdonnell | Relay |
US2013513A (en) * | 1935-03-14 | 1935-09-03 | Oak Mfg Co | Vibrator |
US2372966A (en) * | 1941-06-03 | 1945-04-03 | Gen Electric | Electric translating apparatus |
US2532468A (en) * | 1945-05-31 | 1950-12-05 | Barber Colman Co | Movable contact structure |
-
0
- NL NL747417061A patent/NL150180B/xx unknown
-
1948
- 1948-11-29 GB GB30981/48A patent/GB650207A/en not_active Expired
-
1949
- 1949-11-29 NL NL150180A patent/NL74909C/nl active
- 1949-11-29 FR FR1006837D patent/FR1006837A/fr not_active Expired
- 1949-11-29 BE BE492459A patent/BE492459A/fr unknown
- 1949-11-29 US US130047A patent/US2609462A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1269917A (en) * | 1916-09-30 | 1918-06-18 | Hall Switch & Signal Co | Contact-finger. |
US1893856A (en) * | 1928-11-09 | 1933-01-10 | Broughton Denis Mcdonnell | Relay |
US1861641A (en) * | 1930-11-17 | 1932-06-07 | Union Switch & Signal Co | Contact device |
US2013513A (en) * | 1935-03-14 | 1935-09-03 | Oak Mfg Co | Vibrator |
US2372966A (en) * | 1941-06-03 | 1945-04-03 | Gen Electric | Electric translating apparatus |
US2532468A (en) * | 1945-05-31 | 1950-12-05 | Barber Colman Co | Movable contact structure |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2908783A (en) * | 1954-01-25 | 1959-10-13 | Ugon Pierre Eugene | Electromagnetic devices |
US2718570A (en) * | 1954-02-05 | 1955-09-20 | Conrad C Caldwell | Electric vibrator contact dampening means |
US2902563A (en) * | 1954-11-23 | 1959-09-01 | Vigren Sten Daniel | Polarized electromagnetic control devices |
US2866025A (en) * | 1955-03-21 | 1958-12-23 | Gen Electric | Non-bouncing switching apparatus |
US2928915A (en) * | 1955-06-11 | 1960-03-15 | Vigren Sten Daniel | Arrangement in polarized relays |
US2866028A (en) * | 1955-06-14 | 1958-12-23 | Bristol Company | Electrically actuated contactor |
Also Published As
Publication number | Publication date |
---|---|
NL74909C (fr) | 1954-06-15 |
FR1006837A (fr) | 1952-04-28 |
NL150180B (nl) | 1900-01-01 |
GB650207A (en) | 1951-02-14 |
BE492459A (fr) | 1949-12-15 |
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