close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2410279

код для вставки
Oct. 29, 1946.
2,410,279
J. A. FAVRE
ELECTROMAGNETIC RELAY DEVICE
Filed March 22', 1943
0
Inventdr:
John A. Favre,
4 His Attovney.
2,410,279
Patented Oct. 29, 1946
‘ UNITED STATES PATENT' OFFICE
2,410,279
ELECTROMAGNETIC RELAY DEVICE
John A. Favre, Drexel Hill, Pa., assignor to Gen
' eral Electric Company, a corporation of New
York
Application March 22, 1943, Serial No. 480,024
9 Claims. (Cl. 175-337)
2
1
My invention relates to improvements in elec
a desired selectivity of switching operations and,
tromagnetic relay devices and more particularly
substantially regardless of vibrations and shocks,
to relay devices for controlling circuits in a pre
a positive maintenance of the last connection un
til such time as another change is desired without
determined order, and especially to relay devices
the operation of which is substantially unaffected
by low frequency vibrations and which are rela
tively insensitive to shock.
the necessity of maintaining the device continu
ously energized.
My invention will be better understood from
the following description when considered in con
nection with the accompanying sheet of drawings.
electrical devices. Thus, in radio communica 10 and its scope will be pointed out in the appended
claims.
tion, it is desirable alternatively to connect the ‘
In the accompanying sheet of drawings, Fig. 1
aerial to a transmitter or a receiver. Obviously,
is a side elevation of an electromagnetic relay
a device for controlling such connections must be
embodying my invention with the parts shown in
so positive in its action as to insure the connec
tion to the‘ aerial of the desired device, regardless 15 one switching position; Fig. 2 is a top plan View
of the embodiment of my invention shown in Fig.
of which of the devices Was last connected there
1; Fig. 3 is a partial side elevation of the embodi
to. Moreover, if the radio communication equip
ment of my invention shown in Fig. 1 similar
ment is subject to relatively low frequency vibra
thereto but with the parts shown in a different
tions and also to shocks, as in installations aboard
switching position; and Fig. 4 is a schematic per
aircraft, it is especially important that neither
spective and diagrammatic arrangement illus
the connection of the device in use nor the con
trating the embodiment of my invention shown
nection of the device that it is desired to use be
in Figs. 1, 2' and 3 as applied to an alternative
disturbed or prevented in consequence of such
switching arrangement.
shocks or vibrations. In other words, if the con
nection is not positively made and maintained, 25
In the ‘illustrated embodiment of my invention,
I have shown an electromagnetic relay device
regardless of shocks and vibrations, the operator
comprising two electromagnetic elements 6 and ‘I,
may find himself receiving when he wants to send
respectively, having energizing windings 8 and 9
and vice versa. This might Well be dangerous, as
and armatures I0 and II. The electromagnetic
in the case of an airplane trying to ?nd and land
at an airport under bad weather conditions. 30 elements 6 and ‘l are suitably secured to a base
Moreover, in the application of electromagnetic
I2 of suitable insulating material. For economy
of space and simplicity in structure, the windings
relay devices, particularly to aircraft, it is im
portant to avoid the necessity of maintaining the
8 and 9 may be arranged as two spaced substan
devices continuously energized in order to mini
tially coaxial solenoids, as shown. Also, in ac
mize the drain on the power supply, decrease the 35 cordance with my invention, the armature I0 is
weight of the devices, and reduce the possible ?re
of the plunger type, and the armature II of the
hazard from overheated windings.
hinged type. Also, as illustrated, the electromag
netic element 6 includes a stationary magnetic
An object of my invention is to provide a rela
structure comprising a generally U-shaped mag
tively simple and economical electromagnetic re
lay device by which one electrical device can be 40 netic member I3 and a pole piece I II, and the
electromagnetic element ‘I includes a magnetic
connected to either one of two other electrical de
core and pole piece I5 and a generally U-shaped
vices alternatively with a positive action substan
magnetic member IS, the leg I ‘l of which is suit
tially unaffected by low frequency vibrations and
ably ‘shaped to provide a bearing support for the
shocks. Another object of my invention is to pro
vide an alternative operation electromagnetic re 45 armature II. The armatures I0 and I I are inde
It is often necessary alternatively to connect an
electrical device to one or the other of two other
lay device which is capable of maintaining the
function last performed without the necessity for
keeping the device continuously energized. These
pendently biased to their unattracted positions
and other objects of my invention will appear in
In accordance with my invention, I provide
by suitable means, such as springs I8 and I9 re
spectively.
50 means for suitably coordinating the movements
In accordance with my invention, I provide an
of the armatures In and II so as to obtain a de
more detail hereinafter.
improved electromagnetic relay device wherein
two electromagnetic elements are coordinated in
sired alternative switching arrangement and
maintenance of the function last performed with
out the necessity of keeping the electromagnetic
such a manner that the operation of each is de
pendent on the operation of the other to obtain 55 elements 6 and ‘I continuously energized.
As
2,410,279
3
4
shown, this means includes a member 2!] which
is mounted to partake of the movement of the
armature l3 and is operative upon movement
thereof to the unattracted position while the ar~
mature i l is in the attracted position to hold this
armature in its attracted position after deencr
gization of its associated winding 9. Also, the
member 20 is operative upon movement of the ar~
mature in to the attracted position to release the
means which is arranged to be controlled by the
armature | I for movement to the unattracted pom .
movement of the armature l3 and which is op
erative upon movement thereof to the unat
tractecl position to eifect deenergization of the
winding i]. As shown, this switching means com
prises a T-shaped, circuit controlling member 33
which is mounted to move with the armature 10.
For this purpose, it may be mounted on the ar
mature to seat against a shoulder thereon just
back of the latching member 23, as shown more
clearly in Figs. 1 and 3. In Fig. 4, the latching
sition under the bias of the spring l3. In its unat
member 20 and the circuit controlling member
tracted position the armature ii is e?ective to
33 are, for purposes of clearness in the diagram
maintain the armature id in the attracted posi
matic showing, illustrated much farther apart
tion against the bias of the spring Hi. In other
words, each armature is effective to hold the other 15 than is actually the case. In order to maintain
the alignment of the circuit controlling member
armature in its attracted position so as to main
33, it is provided with a suitable notch 34 which
tain the function last performed without the ne
engages the guide rod 28. The biasing spring
cessity of maintaining the associated energizing
I8 is shown as a compression spring mounted be
winding continuously energized.
tween the magnet leg 35 and the leg of the cir
In order to obtain the foregoing operation, the
cuit controlling member 33.
member 20 is arranged to be moved into and out
of holding engagement with the armature | I and
As shown, the circuit controlling member 33
is provided with two contact carrying arms 35
vice versa. For this purpose, the member 2|] may
and 31 and is, in effect, a double pole double
be mounted directly near the outer end of the
plunger armature l0 and arranged to engage the I throw switch. The contact arm 36 is provided
armature || through its angularly extending leg
with a contact 38, and the contact arm 31 is pro
2| which is pivotally supported on the magnet
leg H by suitable means, such as a pin 22. In
accordance with our invention, the pivotal sup
port 22 of the armature member ||—2| is sub
stantially at the center of gravity of this mem
ber for dynamic balance in order to minimize
response to shocks and vibrations. Clockwise ro
tation of the armature member ||—2| is limited
by suitable means such as the head of the pin
vided with a contact 39. In the attracted posi
tion of the plunger armature I3, the contact 38 is
22 and a projection 2|’ on the lower side of the
leg 2|. As shown, the biasing spring I9 is a ten
sion spring which is connected between a station
ary pin 23 and the armature extension 2|. The
member 20, which in Figs. 1, Z and 4 is shown in 4 O
the unlatched position under the end of the ar
mature extension 2|, is held in place on the ar
arranged to engage a contact 4?] secured to a
terminal 41 on the base I2, and the contact 39 is
arranged to engage a contact 42 secured to a ter
minal 43 mounted on the base l2. In the un
attracted position of the plunger armature Hi,
the contact 38 is arranged to engage a contact
44 secured to a terminal 45 mounted on the base
|2 and the contact 39 is arranged to engage a
contact 45 secured to a terminal 41 mounted on
the base l2. The base |2 may further be pro
vided with terminals 53 and 5| for permanent
connections to the base and ?exible connections
to the contact arms 31 and 36, respectively. For
simplicity in assembly and general rigidity of
mature H) by suitable means, such as a lock
structure as well as to secure the desired high
washer 24 and a nut 25. For guiding the outer
end of the armature H], it may be provided with a
reduced diameter extension 26 which is guided
insulating properties required for use under cer
in a cylindrical hole in the core l5, as shown
in Fig. 1. In order to maintain the desired align
ment of the latching member 20 during move
tain conditions, the contact terminals 32, 32’, Al,
43, 45, 41, 5t} and 5| may be mounted on con
tact rails 52 and 53 of suitable insulating mate
rial secured to the base i2, as shown more clear
ly in Fig. 2. Further terminals 54 and 55 are
also provided for connections which do not re
ment thereof so that it will always be correctly
quire such a high degree of insulation.
positioned relatively to the end of the extension
In order to prevent false operation of the elec
2|, the lower end of the member 20 is provided
tromagnetic device above described under vibra
with a suitable notch 21, as shown in Fig. 4,
tions particularly of a relatively low frequency
which engages a guide rod 28 mounted between
and under substantial shock especially so as not
the magnetic members l3 and H5, as shown in
to aiTect the positive closing of the contacts and
dotted lines in Fig. 1.
maintaining them closed, I keep the mass of the
Further in accordance with my invention, I
moving parts relatively small and use relatively
provide in circuit with the winding 8 switching
strong springs. Also, for freedom from shock
means which is arranged to be controlled by the
movement of the armature H and is operative 60 in the latched position, the construction of the
upon ‘movement thereof to the unattracted posi
latch member 2|) and the armature H and its
tion to open the circuit of the winding 8. As
mounting is such as to provide the maximum re
sistance to dynamic unbalance. The combina
shown, .this switching means comprises a mov
able conducting member 29 which may have a
tion of the relatively strong, plunger type elec
generally U-shaped form, as shown more clearly
tromagnet 6 with the dynamically balanced,
in Fig. 4, and which is arranged to partake of the
hinged armature member ||—-2| of the electro
magnet 1 provides a good shock- and vibration
movement of the armature H and may be se
cured directly thereto as shown. This switching
proof relay because the spring l3 furnishes suffi
member 29 is provided with two contact portions
cient force to hold the armature m, the latch
23, the contact arm 33, and associated contacts
30, 3B’ which, in the attracted position of the ar~
mature l5, engage stationary contacts 3|, 3|’ as
in the unlatched position, as shown in Figs. 1, 2
sociated with terminals 32, 32' suitably mounted
and 4, even under conditions of shock and vi
on the base l2.
bration such as this relay is intended to with
stand. To facilitate this, the moving parts I8,
Also, in accordance with my invention, I pro
vide in circuit with the winding 9 switching 75 I0, 20, 33, etc., are made as light as possible.
2,410,279
5
When the relay is in the latched position shown
in Fig. 3, it is maintained in that position under
conditions of vibration or shock by the extension
2| of the dynamically balanced armature mem
ing member 33 and the latch member 20 are
quickly returned to the position shown in Fig. 1
to restore the connections to the condition shown
in Fig. 4,
ber |l-2| latching with the member 29 under
While I have indicated the sources of ener
the bias of the spring l9. In other words, in
gization of the windings 8 and 9 by plus and
the unlatched position shown in Figs. 1, 2 and 4,
minus busses, it is to be understood that my in
the spring l8 overcomes the inertia of the light
vention is not limited to energization by direct
weight parts and prevents motion or separation
current but is equally applicable to an alternating
of the contacts 39, 46 and 38, 44 relatively to each 10 current source of energization.
other. Similarly, in the latched position, as
rom the foregoing, it will be observed that
shown in Fig. 3, the dynamically balanced arma
in either the attracted or unattracted positions
ture member ||-—2l insensitive to shock ‘and as
of the armatures l9 and II, they are forcibly
sisted by spring l9 holds the member 20 in posi
blocked or held against movement which pre
tive contact against the pressure of spring |8.
vents any false operation of the switching mem
thereby maintaining the contacts 39, 42 and 38,
bers 29 and 33 in consequence of relatively severe
40 in a‘ positively closed condition.
vibrations and shock. Moreover, it will be appar
For the purpose of explaining my invention, it
ent that the blocking action once it is established
will be assumed that it is desired to connect
is independent of energization of the windings
alternatively and at will the terminal 50 to one 20 8 and 9_ Also, it will be observed that because of
or the other of the terminals 43 and 41 in re
sponse to the operation of two manually con
trolled switches 56 and 5!, shown only in Fig. 4.
Assuming ?rst that the last operation performed
was such as to leave the parts positioned as
shown in Figs. 1, 2 and 4, then the terminal 53
is connected to the terminal 41 through a ?exible
lead 50’, the switch arm 31 and'the contacts 39
and 46. If now it is desired to change the con_
nection so as to connect terminal 50 to terminal
the coordinated arrangement of the two arma
tures, if the operator should inadvertently push
the wrong switch, that is to say, if the switch 5'!
were inadvertently actuated while the parts are
positioned as shown in Figs. 1 and 4, there would
be no change in the switching connections, In
other words, the arrangement of the parts is such
that the relay device is so positive in its action
as to insure the connection of one device to either
of two desired devices, regardless of which of
43, then the switch 56 is closed. Then, with ref
erence to Fig. 4, this completes the circuit of the
winding 8 of the electromagnetic element 6 as
these last devices was last connected to the one
follows: from one side of the source, indicated as
64, referred to in connection with Fig. 4, are not
device.
The conductors 50', 58, 59, 60, 6|, 62, 63, and
plus, through the switch 56, a conductor '58. the
shown in Figs. 1, 2 and 3 in order to avoid con
terminal 32, the contacts 3| and 30, the switch
fusion in illustration of structure, '
arm 29, the contacts 30' and 3|’, the terminal
While I have shown and described my inven
32’, a conductor 59, the winding 8, a conductor
tion in considerable detail, I do not desire‘to be
‘66, and the terminal 54‘ to the other side of the
limited to the exact arrangements shown, but
source, indicated as minus. Upon completion of 40 seek to cover in the appended claims all those
the circuit of the winding 8, the armature I0 is
modi?cations that fall within the true spirit an
moved to the attracted position since the circuit
scope of my invention.
of the winding 9 is open at contacts 38 and 40, as
What I claim as new and desire to secure by
will be obvious from Fig. 4. Upon movement of
Letters Patent of the United States is:
v
the armature II) to the attracted position, the 45
1. An electromagnetic device comprising a
contact 39 is‘moved from contact 46 to contact
hinged armature and a plunger armature,'each
42 to bring about the desired switching change.
armature having a blocking and a blocked posi
_At the same time, the contact 38 is moved to en
tion, means for mechanically interlocking said
gage the contact 46. Upon movement of the
armatures to prevent movement of either arma
latch 20, the armature I I under the bias of the 50 ture from its blocked position to its blocking
spring |9 moves to the unattracted position and
position when the other armature is in its block-_
the contacts 3|. 36 and 3|’, 30' are separated,
ing position, means for moving an armature from
thereby opening the circuit of the winding 8, The
its blocking position to its blocked position, and
latch 29 is now positively held in the latched
means for moving an armature from its blocked
position since the end of the armature extension 55 position to its blocking position when the other
2! falls behind it under the bias of the spring
armature is moved to its blocked position.
l9 so as positively to maintain the contacts 39,
2. A relay device comprising two electromag
42 and 38, 40 in the closed position while the con
netic elements, each having an energizing wind
tacts 39, 3| and 39', 3|’ are positively maintained
ing, a dynamically balanced hinged armature as
in the open position by the force of the spring l9. 60 sociated with one of said windings, a plunger
If now it is desired to switch back to the original
armature associated with the other of said wind
position, that is to say, to connect the terminal
ings, means independently biasing each of said
50 to the terminal 41, then the switch 5‘! is closed.
armatures for movement to the unattracted posi
This completes the circuit of the winding 9 from
tion, and means controlled by the movement of
one side of the source, indicated as plus, through 65 said armatures operative upon movement of
the switch 51, a conductor 6|, the terminal 4|,
either armature to the attracted position and the
the contacts 46 and 38, the switch arm 36, a con
other armature to the unattracted position to
ductor 62, the terminal 5|, a conductor 63, the
maintain the attracted armature in the attracted
winding 9, a conductor 64, and. the terminal 55
position irrespective of_ the maintenance of the
to the other side of the source, indicated as 70 energization of the associated winding.
minus. Upon energization of the winding 9, the
armature II is moved to the attracted position
which takes the blocking action away from the
armature I0. Consequently, under the strong
3. An electromagnetic relay device comprising
two spaced substantially coaxial solenoids, a
plunger armature associated with one of said sole
noids and a hinged armature associated with the
bias of the spring I8, the armature N1, the switch. 75 other of said solenoids, the movements of said
2,410,279
7
8
armatures being arranged to be controlled in re~
sponse to the energization of said solenoids, re
silient means independently biasing each of said
armatures for movement to the unattracted posi
tion, and a member mounted between said sole
two spaced substantially coaxial solenoids, one
having a plunger armature and the other a hinged
armature, each of said armatures being inde
pendently biased for movement to the unattracted
position, and a member mounted between said
solenoids to partake of the movement of said
plunger armature and constructed and arranged
upon movement thereof to the unattracted posi
movement thereof to the unattracted position
tion while the hinged armature is in the attracted
while the hinged armature is in the attracted po
sition to hold the hinged armature in the at 10 position to hold the hinged armature in the at
tracted position after deenergization of its asso
tracted position after dcenergization of its asso
ciated solenoid and upon movement of the plunger
ciated solenoid and upon movement of the plunger
armature to the attracted position to release said
armature to the attracted position to release the
hinged armature for movement to the unattracted
hinged armature for movement to the unattracted
noids to partake of the movement of said plunger
armature and constructed and arranged upon
position, said hinged armature being constructed
and arranged upon movement to the unattracted
position to abut said member and hold said plung
er armature in the attracted position.
4. A relay device comprising two electromag
netic elements, one having a plunger armature
and the other a hinged armature, each of said
armatures being independently biased for move
ment to the unattracted position, and a member
mounted to partake of the movement of said
plunger armature operative upon movement
thereof to the unattracted position while the
hinged armature is in the attracted position to
hold the hinged armature in the attracted posi
tion after deenergization of its associated electro
magnetic element and upon movement of the
plunger armature to the attracted position to re
lease said hinged armature for movement to the
unattracted position, said hinged armature being
constructed and arranged upon movement to the
unattracted position to engage said member and
hold said plunger armature in the attracted posi
tion.
5. A relay device comprising two electromag
netic elements, each having an energizing wind
position, said hinged armature being constructed
and arranged upon movement to the unattracted
position to abut said member and hold said
plunger armature in the attracted position.
7. An electromagnetic device comprising a
hinged armature and a plunger armature, each
armature having a blocking and a blocked posi
ti-on, means for mechanically interlocking said
armatures to prevent movement of either armature
from its blocked position to its blocking position
when the other armature is in its blocking posi
tion, means comprising two spaced substantially
coaxial solenoids respectively associated with said
armatures for moving the associated armature
from its blocking position to its blocked position,
and means for moving each armature from its
blocked position to its blocking position when the
other armature is moved to its blocked position.
8. A relay device comprising an electromagnet
having a hinged armature, a rectilinearly movable
member for blocking said armature inv one posi
tion, means tending to move said member to the
blocking position, electromagnetic means for mov
ing said member from the blocking position, and
means tending to move said armature to another
ing, a plunger armature associated with one of 40 position upon movement of said member from the
said windings, a hinged armature associated with
the other of said windings, means independently
biasing each of said armatures for movement to
the unattracted position, and a member mounted
to partake of the movement of said plunger ar
mature operative upon movement thereof to the
unattracted position while said hinged armature
is in the attracted position to hold the hinged
armature in the attracted position after deener
gization of its associated winding and upon move
ment of said plunger armature to the attracted
position to release said hinged armature for move
ment to the unattracted position, said hinged ar
mature being constructed and arranged upon
movement to the unattracted position to engage
said member and hold said plunger armature in
the attracted position.
6. An electromagnetic relay device comprising
blocking position, said armature being arranged
in said other position to engage said member
when out of the blocking position to prevent
movement of the member to the blocking position.
9. A relay device comprising an electromagnet
having a hinged armature, a rectilinearly mov
able member for blocking said armature in the
attracted position, resilient means tending to
move said member to the blocking position, elec
tromagnetic means for moving said member from
the blocking position, and resilient means tending
to move said armature to the unattracted position
upon movement of said member from the blocking
position, said armature being arranged in the
unattracted position to engage said member when
out of the blocking position ‘to prevent movement
of the member to the blocking position,
JOHN A. FAVRE.
Документ
Категория
Без категории
Просмотров
0
Размер файла
752 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа