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Патент USA US3047704

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July 31, 1962
J. KOHOUTEK ETAL
3,047,691
BUILT-UP POLARIZED RELAY
Filed July 19, 1960
Z/Sheets-Sheet 1
July 31, 1962
3,047,691
J. KoHoUTEK ETAL
BUILT-UP POLARIZED RELAY
Filed July 19. 1960
2 sheets-sheet 2 `
INVENTORS
„A ¿JAW/ey „Va/gf
BY
/
/F’O
.
United States PatentOiifice
3,047,691
‘ Patented July 31, 1962
2
1
3,047,691
BUILT-UP PGLARIZED RELAY
Jind?ich Kohoutek and Olaf Kozeny, .lablonec on Nisa,
Czechoslovakia, assigner-s to Zavody Jana Sverrny,
Brno, Czechoslovakia
Filed July 19, 1960, Ser. No. 43,908
Claims priority, application Czechoslovakia July 21, 1959
10 Claims. (Cl. 20G-_93)
FIG. 1 is an axonometric view of a four-contact relay
of the invention.
FIGS. 2a and 2b show the two body parts of the relay
of FIG. l in a corresponding exploded view.
FIG. 3 is an axonometric view of the magnetic and
electrical components of the relay of FIG. 1.
FIG. 4 shows a detail of the apparatus of FIG. 3 on
an `enlarged scale, and
FIG. 5 shows a terminal arrangement for the relay of
The present invention relates to a built-up polarized 10 FIG. 1.
The insulating body of the relay is preferably made by
relay and more particularly to a relay for calculating
moulding from a synthetic material, and consists of two
machines. The primary object of the invention is the
identical parts lil. Each part has the shape of the let
provision of relays a great number of which may be
ter H with two ñanges 11, connected by a web 12.. The
accommodated in a limited space. Another object is the
provision of a relay capable of easy assembly and wiring 15 flanges 11 and the web 12 have respective raised rims
112 and 121. When the two body parts 10 are placed
and permitting a general lay-out of the relay installation .
which is easy to inspect. The use of the relay according
upon one another, a cavity is formed between the two
to the invention is, of course, in no way restricted to
Webs 12 and serves to accommodate a core Z1 of an
calculating machines, and the relay can be used to ad
electromagnet as will be described hereinafter.
Several
20 recesses are arranged in the flanges 11.
vantage also for telephone exchanges and the like.
Adjacent the ends of each ñange 11, there are re
The relay according to the present invention is of the
four-contact type, but it can be changed to a two-contact
cesses 11i) which receive a magnetic polarizing unit 30
relay by a simple adjustment without in any way impair
ing its character as a built-up relay.
tudinal recesses 111 are intendedv to accommodate tongue
including pole pieces and polarizing magnets.
Longi
It is a disadvantage of the heretofore known relays of 25 shaped armatures 22 of the electromagnet and pole pieces
210 of the core 21. Recesses 113 in the external body
this type that an assembly of a plurality of such relays
faces parallel to the contact plane of the two parts ac
requires special structural members, such as sockets,
commodate terminals for the relay contacts, and finally
brackets and the like which make the general outlay of
there are recesses 114 at the longitudinal sides of each
the assembly complicated. Such known relays are usu
ally secured to a carrier plate which itself requires con 30 flange 11 providing space for the conductors connecting
several superposed or juxtaposed relays. The opposite
siderable space. The current circuits in relays of the
faces 115 of the flanges 11 of each body part 10 con
conventional type can be connected in one plane only
and not in three dimensions. When several superposed
carrier plates are employed', connections cannot be made
in straight lines, which is disadvantageous from the eco
nomic as well as the technical point of view since the
operating speed of the relay circuits is limited by the
capacitative coupling of the connections.
Conventional multi-contact polarized relays are not
easily accessible and are, therefore, usually replaced by
a plurality of single-contact polarized relays; such a re
placement is, of course, objectionable. The known relays
require not only a plurality of accurately manufactured
component parts but also precise and careful assembly.
stitute the end plates of a former on which an exciting
coil 20 is wound about the core 21. Due to the smooth
35 ness of the faces 115, the exciting coil can be wound
without diiiiculty, and needs no special insulation be
cause of the insulating qualities of the material from
which the two body members 10 are moulded.
Each part 1t) has at its outer side a flat seating face
40 116, which serves as an abutment or support for an ad
jacent relay. A multitude of relays may be assembled
by placing them upon one another without any special
carrier members. The relative position of two assem
bled body parts 11i as well as the relative position of
For this reason, the known relays are comparatively ex 45 several superposed relays are secured by connecting mem
bers such as pins which are inserted into aligned aper
pensive. In some relay designs, the moving members are
tures 118 in the body parts 10.
not sufficiently protected against mechanical damage or
In the recesses 113, the body parts 10 are further pro
against dust andother atmospheric influences. It is cus
vided with openings 117 which receive contact screws
tomary, therefore, to provide separate covers for each
50 23. Adjacent the openings 117 metal terminal lugs 230
individual relay, but this is rather unsatisfactory.
having soldering eyelets are press-fitted in conforming
The present invention generally aims at overcoming
recesses of the body parts, the screws 23 engaging mating
the aforesaid and other shortcomings of known built-up
relays.
threads provided in the lugs (see FIG. 5).
The main magnetic circuit of the relay includes the
According to the invention, the relay includes an in
sulating body consisting of two identical parts, each hav 55 core 21 lwhich may consist of two identical halves on
both ends of which pairs of laterally oppositely project
ing substantially the shape of the letter H. The web
ing tongue-shaped armatures 22 are mounted in respec
portion of each H-type body constitutes one half of a
tive insulating blocks 24. The free ends of the armatures
coil former on which the exciting coil of the relay is
22 are movably arranged between pole pieces 31 of
wound. Recesses in the iiange portions of the body
parts accommodate polarizing magnetic units.
Other 60 permanent polarizing magnets 32.
recesses in the flange portions are provided for tongue
shaped relay armatures, and the contacts cooperating
with the armatures are also inserted in the ñanges. The
The tongue-shaped
armatures 22 constitute contact springs which make alter
nate contact with oppositely arranged contact screws
23. The armatures 22 are provided with connecting eye
lets 220.
arrangement is such that the tongue-like armatures are
An important feature of the main magnetic circuit is
located in the plane of contact between the two parts of 65 the pole-extensions 210 which project laterally from the
which the relay body is composed.
core 21 on two sides of each armature 22 from which
‘Other features of the relay of the invention as well
they are separated by respective air gaps M. The pole
as additional advantages thereof will become apparent
extensions 210 reduce the intensity of magnetic leakage
from the following disclosure of a preferred embodiment 70 fields and concentrate the magnetic flux of the electro
thereof when taken with the accompanying drawings in
magnet in the air gaps M. Each magnetic polarizing unit
which:
30 comprises two pole pieces 31, having each the shape
3,047,691
3
4
of a ñat letter U, Ibetween which permanent magnets 32
are inserted with equal poles facing in the same direc
6. A reiay as set forth in claim 5, wherein said core
.is composed of two parts holding said insulating block
tion.
therebetween.
The magnets 32 are secured in grooves 310 pro
vided in the pole pieces 31.
.
7. A relay as set forth in claim l, wherein said con
Y.tact means on said body is positioned in said first recess
for abutment against said movable armature member por
tion when the latter moves toward one of said pole pieces.
As shown in FIG. 4, two armatures 22 are inserted
in an insulatinlg block 24, the whole assembly being held
under pressure in a conforming recess of the core 21. If
8. A relay as set forth in claim 1, further comprising
desired, the core 21 may consist of two parts placed upon
one another and held together in the cavity between the
a terminal member conductively connected to said con
webs 12 when the body parts `10 are assembled.
1CD tact means, said `body being formed with a third recess,
If a two-contact relay is desired instead of the afore
said terminal member 'being mounted in said recess.
described four-contact arrangement, a core having two
9. A relay as set forth in claim 1, one of said body
parts having an external supporting face, and said relay
further comprising means for securing another substan
The other unit 3l) 15 tially identical relay to said supporting face.
armatures is substituted for the core 21 having four arma~
tures 22. The two armatures of course cooperate with a
single magnetic polarizing unit 30.
10. A polarized relay comprising two substantially
identical body parts of insulating material, each body
part having two flange portions and a web portion inte
grally connecting said flange portions; fastening means
is in this case dispensed `with entirely.
It will be understood that the foregoing disclosure
relates to only a preferred embodiment of the invention
and numerous modifications may be made therein with
out departing from the spirit and scope of the invention
as set forth in the appended claims.
We claim:
for securing said body parts to each other with the re~
spective flange and web portions of one body part super
imposed on the corresponding portions of the other body
1. A polarized relay comprising two substantially iden
part to form respective pairs of superimposed portions,
tical lbody parts of insulating material, each body part
said parts when secured to each other constituting the
having two flange portions and a web portion integrally 25 body of said relay and substantially defining the external
connecting said fiange portions; fastening means for se
dimensions thereof, said web portions jointly defining a
curing said body parts to each other with the respective
coil former having an internal cavity; a magnetizable core
flange and web portions of one body part superimposed
in said cavity, said body being formed with a ñrst and
on the corresponding portions of the other body part,
a second recess respectively extending in at least one of
said parts when secured to each other constituting the 30 the ñange portions of the two pairs of superimposed
body of said relay and substantially defining the external
flange portions and communicating with respective ter
dimensions thereof, said web portions jointly defining a
minal portions of said cavity, and with a third and a
coil former having an internal cavity; a magnetizable core
fourth recess in respective ones of said pairs of flange
in said cavity, said body being formed with a first recess
portions, said third and fourth recesses being spaced from
extending in at least one of said íiange portions and com» 35 said cavity and respectively communicating with said first
municating with said cavity, and with a second recess
and second recesses; a plurality of windings on said coil
spaced from said cavity and communicating with said
former for magnetizing said core and energizing a mag
first recess; a plurality of windings on said coil former
netic ñeld thereof; polarizing magnet means including two
for magnetizing said core and energizing a magnetic field
pole pieces each having respective portions mounted in
thereof; polarizing magnet means mounted in said second 40 said third and fourth recesses, the pole piece portions in
recess, said magnet means having >spaced pole piece
each of said third and fourth recesses defining an air gap
means; an elongated armature member mounted in said
ñrst recess, said armature member having one portion
located in said magnetic field and another movable portion
partly interposed between said pole piece means; and co
therebetween, and a magnet having two poles respectively
connected to said pole pieces for magnetizing the same;
an elongated armature mem-ber mounted in each of said
45 first and second recesses, said armature member having
operating contact means on said movable armature por
tion and on said -body in one of said recesses for open
one portion located adjacent a terminal portion of said
core and in said magnetic field thereof, and another por
ing and closing a circuit when said movable armature
tion partly located in a corresponding one of said gaps;
member portion moves between said pole piece means.
and cooperating contact means on each of said movable
2. A relay as set forth in claim 1, wherein said body 50 armature member portions and on said body in said Álirst
parts define a contact plane therebetween, said plane ex
and second recesses respectively for opening and closing
tending in each of said recesses.
a respective circuit when said movable armature member
3. A relay as set forth in claim 2, wherein said recesses
portion moves in the corresponding gap between said pole
each extend in the two corresponding flange portions of
pieces.
said body parts adjacent said contact plane.
55
4. A relay as set forth in claim l, wherein said one
portion of said armature member is mounted on said core.
5. A relay as set forth in claim 4, further comprising
an insulating block, said core being formed with a recess
receiving said block, and said armature member being 60
mounted on said block within the magnetic field of said
core and electrically insulated from the latter.
References Cited in the tile of this patent
UNITED STATES PATENTS
2,443,784
2,882,461
2,884,498
Bullen et al. _________ __ June 22, 1948
Glassow ____________ __ Apr. 14, 1959
Fisher ______________ __ Apr. 28, 1959
2,928,915
Vigren et al. _________ _.. Mar. 15, 196()
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