专利摘要:
The invention relates to electrical apparatus and may find use in monostable electrical drives. The purpose of the invention is to simplify the design and increase reliability. In the rest position, the measles 4 is pulled up and in the up position. The flow inside the coil is also directed upwards. At a charge of 6 I W / I /////).J kvOvXVH / /% SU) with / U //// 7/77 6 I 7a fig. 1 s
公开号:SU1304759A3
申请号:SU833545101
申请日:1983-01-17
公开日:1987-04-15
发明作者:Колер Жерар
申请人:Ля Телемеханик Электрик (Фирма);
IPC主号:
专利说明:

A downward flow is created on the winding 10. It is opposed by the flow of a stationary magnet 11. The coil flow is closed by a 9th frame element, the polarity of which is similar to the polarity of the pole tip 6. Repulsive forces appear in the closed gaps between elements 9b and 6b and between elements 9a and 6a. Accordingly, in open spaces, m €; waiting for elements 6a, 9a, and 7b-9b, attractive forces arise. The force applied in this way to the bark 4 moves it to its extreme working position. In this position, the attractive force is increased by closing the gaps between the elements 9b-7b and 9a-6a, while the repulsive forces are reduced by opening the gaps where they occur. When the excitation is removed from the winding 10, the flow 5 which opposes the flow disappears.
one
The invention relates to electrical apparatus and can be used in any monostable electromagnetic drive.
The aim of the invention is to simplify the Construction and increase the reliability of operation.
FIG. 1 shows the proposed electromagnet, a variant (section A-A in FIG. 2); figure 2 - section bb in figure 1; FIGS. 3-6 are simplified diagrams of an electromagnet according to FIGS. 1 and 2 for explaining its operation; 7, a second embodiment of an electromagnet, which is an integral part of an electro-pneumatic valve, is a longitudinal section; FIGS. 8, 10 and 11 are schematic brkovy vertical views with an axial section of the winding of three other variants of the invention, in FIG. 9 the electromagnet, a top view of FIG. 8 (section B-B in FIG. B), FIG. 12 is the sixth embodiment of the electromagnet (the winding is not depicted), the cross section of FIG. 13 is an electromagnet intended for
non-moving magnet 11, and it is closed through the element 9a of the PM, an open gap 9a-7a, pole tip 7. The same happens through the gap between the elements 9b-6b. Thus, both magnets form a successive dep. Repulsive forces appear in closed gaps, and the measles are attracted upwards to their original position. Closed gaps in the working position occupy an asymmetrical position with respect to the respective magnets, i.e. There are different magnetic resistances. In order to avoid the appearance of residual magnetism after the excitation has been removed, the resulting flux in these gaps must be zero. This is achieved by selecting the power of both magnets. Various device modifications are described. 15 з.п f-ly, 12 silt,
actuate powerful contact.
The electromagnet according to the invention (Figures 1 and 2) contains a coil 1 having a winding wound on a frame 2 with a rectangular axial cavity 3, in which the measles 4 are installed with the possibility of free sliding.
In figure 1, measles 4 is depicted in the middle position, which does not correspond to a stable position of work.
The anchor contains a permanent magnet 5 whose magnetic axis M-S (North-South) is perpendicular to the direction of sliding of the core and which has pole tips 6 and 7 glued to it on its working surfaces of the poles. Pole tip 7 has 90 ends bent at the ends that are opposite the ends of the flat pole tip 6. The core assembly, with the exception of the ends of the pole tips, is poured into the block 8 of plastic material.
The two elements 9a and 9b of the PM encompass each one end of the coil 1 with the winding 10, partially overlap
a permanent magnet 11 is clamped inside the coil and clamped together. The joint is made by a fin and the node of the overlapping zone of the two elements of the frame is enclosed in a block 12 of plastic material. The axis of the movable magnet 5 and the stationary magnet 11 are parallel to each other.
The polarity of the stationary magnet 11 is determined so that the bark 4 is pulled into one of its extreme positions when the coil is not excited. For the fields indicated in Fig. 1, this position is the upper position of the core and is called inoperative. In this position, the end 6b of the pole piece 6 comes into contact with the element 9b of the rome, and the bent end 7a of the pole tip 7 comes into contact with the element 9a of the rome so that in the magnetic circuit thus closed, two permanent magnets are sequential (Fig. ). Pole
lugs 6 and 7 have such dimensions through the gap between the elements and are installed so that both contacts take place simultaneously. In any relative position, the magnets 5 and 11 are separated from one another by a coil.
The electromagnet works as follows.
In the non-working position (Fig. 3), the bark 4 is attracted by force F directed upwards along the drawing, while the flow passing inside the coil is also directed upwards. When winding 10 is excited from this position (Fig. 4) in such a way as to create a downward flow, flow
35
Tami 9b-6b. Both magnets are thus consistent. In addition, repulsive forces appear in closed gaps and the measles are attracted upwards, i.e. Measles will be moved to the non-working position (Fig. 3).
As shown in FIGS. 3 and 6, the closed gaps in the working position occupy an asymmetrical position with respect to the respective magnets, i.e. the respective overcomeable impedances are different. In order to avoid any harmful residual magnetism, when excitation is interrupted, it is important that the resulting flux be zero in these gaps. For this, the respective powers of both are calculated.
The magnet 11 is counter, r, acting and must be closed with itself, which is facilitated by the small distance between the elements 9a and 9b of the frame. This effect arises due to the fact that both magnets are separated one from the D-W magnets. In the example described, it is a coil. surface of a fixed magnet 11
The coil flow closes the element more than the surface of the rolling volume 9 of the PMA, which has the same magnet 5.
As shown in FIGS. 3 and 6, the closed gaps in the working position occupy an asymmetrical position with respect to the respective magnets, i.e. Corresponding resistive resistors are differential. In order to avoid any harmful residual magnetism, when excitement is interrupted, it is important that the resulting flux be zero in these gaps. To do this, calculate the corresponding power wallpaper
the polarization N (North), as well as the pole tip 6. Therefore, the closed gap between the elements 9b and 6b is the location of the repulsive forces. The same applies to the closed gap between elements 9a and 6a.
The relative forces of attraction appear in the open spaces between the elements 6a-9a and 7b - 9b due to the sequential installation of Fig. 7, an electromagnet Qnit is shown, similar to the previous one, but set to trigger the electron tube.
The axial cavity 3, in which collapsing the measles 4, is formed by two sexes 55 us 13 and 14 of the body, connected in a plane passing through the axis of the coil 1. This connection can be made in a tight manner, for example by means of a socket, blocking
five
0
ki flow of the rolling magnet 5 and the flow of the coil. The latter flow closes through a fixed gap existing between the two elements of the chassis.
The force applied to the bark 4 is directed downwards and moves the measles to its extreme working position (FIG. 3). In this position, the pull forces are significantly increased by closing the gaps between elements 9b-7b and 9a-6a, while the repulsive forces are reduced by opening the gaps where they occur.
I
When the excitation of the winding 10 (FIG. 6) is stopped, the flow of the stationary magnet 11 stops experiencing resistance to the flow of the coil and can flow normally through the element 9a of the frame to reach the pole tip 7 through the open gap between the elements 9a-7a. Same thing happened
magnets. In the example described, the surface of the stationary magnet 11
Tami 9b-6b. Both magnets are thus consistent. In addition, repulsive forces appear in closed gaps and the measles are attracted upwards, i.e. Measles will be moved to the non-working position (Fig. 3).
As shown in FIGS. 3 and 6, the closed gaps in the working position occupy an asymmetrical position with respect to the respective magnets, i.e. the respective overcomeable impedances are different. In order to avoid any harmful residual magnetism, when excitation is interrupted, it is important that the resulting flux be zero in these gaps. For this, the respective powers of both are calculated.
Fig. 7 shows an electromagnet similar to the previous one, but installed to actuate the body of the electron tube.
The axial cavity 3, in which the bark 4 slides, is formed by two half-bodies 13 and 14 of the body connected along a plane passing through the axis of the coil 1. This connection can be made in a tight manner, for example by means of a socket overlapping also the end of the cavity 3. Half the bodies have elements 15 which form the skeleton of coil 2. The elements 9a and 9b of the frame intersect the halves 13. The elements of the frame are flat in order not to interfere with the winding operation of the winding 10. They can be installed very precisely and sealed off your fill. This leads to the need to install the core 3 in place at the moment of connecting the halves of the case.
After winding, intermediate chambers 1.6 and 17, respectively, which are clamped, are fixed to each other between the stationary magnet 11.
The spring 18 is compressed in the working position, has the shape of a flat ring, tightly inserted into the half of the housing 14, and is pre-tensioned on the half of the housing 13. It has a tongue 18a, which projects radially, inside the ring of the ring 18, and is driven by the end 7a. At the other end of the electromagnet, a toroidal gasket 19 is clamped in a groove made in an axial cylindrical protrusion 20 formed jointly by the two halves 13 and 14. The protrusion 20 and the gasket 19 can fit snugly in the socket 21, which is located in the housing 22 of the pneumatic valve. Drive pusher
23 fan can be powered by condom 7b pole tip 7, the passage through the axial hole
24 frame coil 2. After assembly
and adjusting the fill (not shown) allows the valve body to be attached to the electromagnet and secure the winding, thus forming an electropneumatic valve.
The surfaces of the gap can be enlarged by thickening the 6a ends of the pole tip 6, the measles being put in place before assembling the halves of the body. For example, in this embodiment, the measles are not axially pulled through and it can therefore be wider at its ends than in an area surrounded by a skeleton. In addition, unlike the first embodiment, the pole surfaces of the movable magnet 5 and the fixed magnet 11, which are opposite to each other, have the same polarity in order to minimize to 0
five
0
five
5 Q
Q
Q
flow termination in air between these permanent magnets.
In the usual unpowered electromagnet, the force obtained in the inoperative position is much weaker than the force obtained in the working position. Since only a force is used in an inoperative position, an electromagnet according to the invention, which in an inoperative position has the same force as in a working, or even larger, allows to obtain exceptional performance characteristics. The spring 18 serves only to obtain more significant attenuation. Moreover, in conventional hermetic electromagnets there is a decrease in performance, due to the fact that the flow of the coil must pass through the hermetic shell in order to reach the core,
On Fig and 9 schematically depicts another relative arrangement of the magnets.
Anchor 4 is unchanged, but there are two fixed magnets 23 and 26 located on one and the other side of the coil axis. The magnets are inserted between the modules and overlapped with parts of two similar U-shaped elements 27 and 28 of the frame, the entrance is one: the other, with their bases opposite to each other. The polarities of the magnets 25 and 26 are chosen in such a way that the magnets are magnetically interconnected in parallel, providing the opposite polarities of the two ends of the core 4.
Furthermore, according to FIG. 8, the axis of the stationary magnet 25 or 26 is perpendicular to the axis of the coil, and the same axis according to FIG. 9 is perpendicular to the axis of the moving magnet 5. This arrangement allows better utilization of the volume, which has a small thickness.
Holes are made in the stationary magnets and the screws 29 connect two elements 27 and 28 of the frame, precisely adjusting their removal at the level of the gaps from the core 4. Since the stationary and movable magnets are perpendicular to each other, it is possible to adjust the magnetic conditions of the connected electromagnet, sending powerful pulses The magnetic field is selectively along the axis of the movable magnet 5 or the stationary magnets 25 - 26 in such a way as to slightly change the residual induction of these magnets.
In Fig.10 schematically depicts a variant shown in Fig.8. On each side of the coil there are two non-movable magnets 30-31 and 32-33 respectively, magnetically connected in series with the help of a flat intermediate frame 34 and respectively 35. This arrangement allows the stationary magnets to be brought closer to the intermediate zones. thus the phenomenon of residual magnetism. The gender of the elements of 36.37 rm is also symmetrical.
FIG. 11 is similar to FIG. 10, except that the chip of the fixed 15 magnet 38-41 has axes parallel to the axis of the coil, while the intermediate frames 42 and 43 are double-curved. The stationary magnets can also be even closer to the intermediate 20 zones. However, the distance between elements 44 and 45 rm depends on the thickness of the magnets, unless special measures are taken.
With ferrite magnets made by sintering and grinding, it is difficult to achieve a thickness of less than 2 mm. Moreover, the cost of such a magnet for small parts depends little on its volume. For miniature electromagnets or for electromagnets having several stationary magnets, it is preferable to use magnets made of a strip or sheet
a flexible magnetic material, such as 5 rubber bands with inclusions of an anisotropic ferrite powder.
In addition, the significant surfaces Q located between the elements of the frame allow this material to be used for stationary magnets without sacrificing performance relative to the sintered magnets. Even for the promotion of: one magnet is necessary for winding 10, the length allows this material to be used. Thus, it is possible to have any desired shape of the magnet, with the large processing costs even for small batches. Thereby, fixing holes can be made, for example, with screws, as in Figures 8 and 9, or with rivets.
Finally, the flexible magnets allow the overlapping parts of the two elements of the frame to have the shape of concentric cylinders, leaving between them an annular space into which one or more sheets of magnetic rubber are inserted, bent so that they repeat the form of the overlapping parts of the elements of the frame (Fig. 12 ). According to this embodiment, two fixed magnets 46 and 47 are used with concentric elements 48 and 49 of the frame with internal free space for the tolerances of the magnets.
Fig. 13 is a sectional view of an electromagnet, similar to the electromagnet shown in Fig. 7, but intended to actuate a powerful contact located inside the closed cavity 3, where the bore 4 moves.
Half 50 and 51 of the housing, limiting the axial cavity 3, do not contain elements that form the coil frame. Robe element 9B has a free side perpendicular to the axis of coil 1, while rome element 9a is bent at a right angle so that one of its sides goes inside half of the body 50 parallel to the axis of coil 1. On the other hand, two intermediate roma 52 and 53 enclosing a fixed magnet 11, are fixed after winding on the frame of the coil 2.
When the coil 1 is made in this way, the coil 1 slides on the case formed by two connected case halves 51 - 51, the sides opposite the parts 9a and 52 on one side and 9b and 53 on the other hand allow the magnetic poles of the stationary magnet 11 to enter inside the cavity 3, i.e. . said coil is interchangeable.
At the end 7b of the pole tip 7, an insulating clip 54 is fastened, carrying a movable contact bridge 55 supported by the spring 56 in the same manner. Two fixed contacts 57 (only one is visible in the figure) are located on fixed plates 58 that pass through the half of the housing. These inputs (not shown) may be made in the joint plane of the connection of the halves of the housing, as shown in the figure, or in a perpendicular plane. The hull halves can be made of an insulating material or of an alloy cast under pressure, but with insulation of the inserts of the fixed plates 58.
Thus, the electrical contact is protected from dust or corrosive atmosphere and there are no moving parts inside cavity 3. Moreover, if cavity 3 is pressurized, a gas atmosphere, selected appropriately and under a certain pressure, or a liquid, such as oil, allows the use of less noble metals for contacts than silver, or have a better dielectric resistance. As can be seen from 13, the winding 10 may be two-piece and contain two concentric windings 59 and 60. One of the windings 59 may, for example, be designed to call the switches, and the other winding 60 to support it by switching (not shown Oh). In the presence of current-limit interrupters, in the event of a short circuit, it is necessary to open the contacts as soon as possible so as to avoid the current reaching its peak 25 of which covers one end value. In order to open a faster current than achieved by interrupting the supporting current, in the presence of an electromagnet according to the invention, a return force 30 greater than the force given by stationary and movable magnets arranged against each other can be obtained by directing a current into the electromagnet and rolling it into one of the working zones gaps, with the ends of at least one pole tip of the first permanent magnet bent parallel to the ends of the frame elements and the axis of the first permanent magnet, while the measles are set detecting movable within the coil, and the second permanent magnet is secured between the
35 oppositely overlapping parts of the elements
but normal excitation current. In order to do this, in a magnet with a two-section winding, it is enough to discharge the capacitor into the call winding and then disconnect the support winding with a significantly longer time constant (only the resultant in the twirls has an effect on measles).
权利要求:
Claims (16)
[1]
Invention Formula
1. A monostable type electromagnet containing a mobile system including a first permanent magnet, a magnetic circuit consisting of a fixed frame and a core, at least one coil partially covering the magnetic circuit, the measles being made in the form of a permanent magnet, equipped with pole pieces mounted on both sides of the axis of the magnetization of the permanent magnet and forming two working zones with the ends of the fixed frame
fixed im.
4. Electromagnet on PP; 1,2 or 3, characterized in that it is equipped with a housing made of two
The 40 halves between which the cavity is formed, the measles are mounted with the possibility of sliding within the said cavity, with the halves of the body being connected along the plane passing through
45 cut the axis of the coil, and in at least one of them the elements of the fixed frame are installed with a second permanent magnet fixed between them. Tom.
50 5. The electromagnet according to claim 4, about t l and cha that the half of the body is connected to ensure the sealing of the internal cavity.
55
6. The electromagnet according to claim 4 or 5, characterized in that one of the elements of the fixed frame is bent at a right angle and inserted into one of the halves of the body in parallel
0
five
0
gaps, while the movable measles is installed with the possibility of its movement into. the extreme working position during the excitation of the coil and the return to the extreme inoperative position when the excitation is removed from it, about m and h a-. This, in order to simplify the construction and increase the reliability of operation, it is equipped with a second permanent magnet inserted into the fixed frame and installed so that its polarity ensures counter-engagement of the permanent magnets in the working position and non-working position.
2. Electromagnet according to claim 1, wherein the permanent magnet with any their mutual arrangement is set so that they are separated by a coil.
[2]
3. The electromagnet according to claim 1
[3]
or 2, by the fact that a non-of two partially overlapping elements, each of which covers one end
coils and inserted into one of the working gap zones, with the ends of at least one pole tip of the first permanent magnet bent parallel to the ends of the frame elements and the axis of the first permanent magnet, with the measles mounted for movement inside the coil and the second permanent magnet fixed between
fixed im.
4. Electromagnet in PP; 1,2 or 3, characterized in that it is equipped with a housing made of two
[4]
40 halves, between which a cavity is formed, measles are slidably installed inside said cavity, with half of the body connected in a plane passing through the axis of the coil, and at least one of them has fixed frame elements with a second constant fixed between them. magnesium. Tom.
50
[5]
5. The electromagnet according to claim 4, about the t of which is due to the fact that the half of the body is connected to ensure the sealing of the internal cavity.
55
6. The electromagnet according to claim 4 or 5, characterized in that one of the elements of the fixed frame is bent at a right angle and inserted into one of the halves of the body in parallel
[6]
the coil axes, each of the elements of the frame is made of two parts in contact with parts of another element of the frame, and one of the indicated parts of each element of the frame is mounted on the coil, between these parts of the elements of the frame mounted on the coil, at least one fixed magnet is fixed , while the parts of the frame, installed tO on the coil, are interconnected to ensure the free removal of the coil from the body of the electromagnet.
7. Electromagnetic p. 4 or 5, characterized in that the half of the body is made with elements forming the coil frame.
[7]
8. Electromagnet on PP. 1-6 or 7, characterized in that at least one of the magnets is made of a strip or sheet flexible magnetic material, for example an anisotropic magnetic rubber tape.
[8]
9. Electromagnet according to claim 8, about which the overlapping parts of the fixed frame elements are made in the form of concentric cylinders with an annular gap, in which
[9]
25
it is equipped with a device that ensures that each section of the coil creates magnetic fields of the opposite direction and turns off one of the sections when the other is turned on.
12. Electromagnet according to one of the claims 1 to 10 or 11, characterized in that it is provided with a third permanent magnet fixed fixedly parallel to the second permanent magnet, on the other side of the coil relative to it.
13. Electromagnet according to claims 1-11 or 12, characterized in that the fixed said permanent magnets are made in the form of two series-connected magnetic elements connected by an intermediate ferromagnetic element.
14. Electromagnet according to claim 13, characterized in that the magnetic elements of each stationary permanent magnet are arranged so that their axes are parallel to the axis of the coil, with one of the magnetic elements of each of the permanent magnets mounted on one of the ends of the coil,
and the other at its other end, and each connecting magnetic element contains a specified permanent ferromagnetic intermediate zhemagnet made at least in the form of a sheet of magnetic rubber repeating at least partially the shape of the overlapping parts of the fixed-frame elements.
10. Electromagnet according to claims 1-8 or 9, characterized in that in order to ensure that the core returns to its inoperative position at an increased speed, it is equipped with a device that ensures a change in the direction of the magnetic field created by the coil.
[10]
11. Electromagnet of claim 10, characterized in that its coil is made of two sections and
[11]
it is equipped with a device that ensures that each section of the coil creates magnetic fields of the opposite direction and turns off one of the sections when the other is turned on.
12. Electromagnet according to one of the claims 1 to 10 or 11, characterized in that it is provided with a third permanent magnet fixed fixedly parallel to the second permanent magnet, on the other side of the coil relative to it.
[12]
13. Electromagnet according to claims 1-11 or 12, characterized in that the fixed said permanent magnets are made in the form of two series-connected magnetic elements connected by an intermediate ferromagnetic element.
[13]
14. Electromagnet according to claim 13, characterized in that the magnetic elements of each stationary permanent magnet are arranged so that their axes are parallel to the axis of the coil, with one of the magnetic elements of each of the permanent magnets mounted on one of the ends of the coil,
[14]
and the other is on its other end, and each connecting magnetic elemental element is curved at both its ends at a right angle.
15. Electromagnet according to claims 1-12 or 13, characterized in that movable and stationary permanent magnets are installed so that their axes are parallel to each other, with the poles of the movable and stationary magnets opposite each other having the same polarity.
[15]
16. Electromagnet according to claims 1 - 13 or 14, characterized in that the movable and stationary magnets are mounted so that their axes are perpendicular to each other.
[16]
eleven
Behind
FIG. 2
9b
eleven
/
7a
.
fig.Z
oh oh oh oh oh
 5a
7h
9b
 h
h
 r /; sr
to.
g /
/
42
oh oh oh oh
 about
fJ S
r
D1
/ J /
LI f
7a
9b
7b
P
9a /
R
FIG. five
9b
7a, 6b:
/
ABOUT
oh oh oh oh
YU
P (puf.6
7a
22
TK
S-fi
2B
77.

"Ftt / ff, rff
40
3
43.
44
44
Cffuffjf
cfJuff. J2
. Tg
 /////// iv TT /
TO
51
Editor M.Kelemes
Compiled by Alekseev
Tehred N.Glushchenko Proofreader L.Pilipenko
Order 1327/59 Circulation 699 Subscription
VNIIPI USSR State Committee
for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5
Production and printing company, Uzhgorod, Projecto st., 4
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同族专利:
公开号 | 公开日
AT16222T|1985-11-15|
DD208262A5|1984-03-28|
YU11983A|1985-12-31|
FR2520152A1|1983-07-22|
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CA1192249A|1985-08-20|
DE86121T1|1983-11-24|
FR2520152B1|1986-02-28|
JPS58128706A|1983-08-01|
US4451808A|1984-05-29|
DE3361039D1|1985-11-28|
IN160983B|1987-08-29|
YU44431B|1990-08-31|
EP0086121A1|1983-08-17|
ES519104A0|1983-10-16|
ES8400630A1|1983-10-16|
EP0086121B1|1985-10-23|
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FR2554959B1|1983-11-16|1987-06-26|Telemecanique Electrique|ELECTRO-MAGNET HAVING A PERMANENT MAGNET WITH TRANSLATION MOTION|
FR2554958B1|1983-11-16|1986-02-07|Telemecanique Electrique|MULTI-FRAME BISTABLE ELECTRO-MAGNET INCLUDING A PERMANENT MAGNET|
FR2561436B1|1984-03-14|1986-11-21|Telemecanique Electrique|POLARIZED ELECTROMAGNETIC RELAY WITH SINGLE-CUT SWITCH|
FR2568056B1|1984-07-20|1987-01-23|Telemecanique Electrique|POLARIZED THREE-STATE ELECTROMAGNET AND CIRCUIT FOR ITS CONTROL|
FR2569298B1|1984-08-20|1986-12-05|Telemecanique Electrique|POLARIZED ELECTROMAGNET WITH BI- OR SINGLE-STABLE OPERATION|
FR2575322B1|1984-12-21|1987-02-13|Telemecanique Electrique|ELECTRO-MAGNET, ESPECIALLY WITH LARGE GAP SURFACES|
FR2586324B1|1985-08-16|1988-11-10|Telemecanique Electrique|DIRECT CURRENT ELECTROMAGNET WITH TRANSLATION MOTION|
JPH057847B2|1986-06-02|1993-01-29|Fuji Electric Co Ltd|
JPH0752690B1|1986-12-26|1995-06-05|
FR2616959B1|1987-06-19|1989-08-25|Koehler Gerard|PROTECTED MINIATURE BIPOLAR RELAY|
FR2618249B1|1987-07-16|1989-11-17|Telemecanique Electrique|ELECTRO-MAGNET WITH PERMANENT MAGNET HELD BY A CAGE.|
JP2552179B2|1988-09-29|1996-11-06|三菱電機株式会社|Polarized electromagnet device|
DE102010018738A1|2010-04-29|2011-11-03|Kissling Elektrotechnik Gmbh|Bistable relay|
DE102010018755A1|2010-04-29|2011-11-03|Kissling Elektrotechnik Gmbh|Relay with integrated safety circuit|
DE202011004021U1|2011-03-16|2012-07-09|Eto Magnetic Gmbh|Electromagnetic actuator device|
DE202012009830U1|2012-10-15|2012-11-15|Bürkert Werke GmbH|Pulse solenoid valve|
法律状态:
优先权:
申请号 | 申请日 | 专利标题
FR8200792A|FR2520152B1|1982-01-20|1982-01-20|ELECTRO-MAGNET WITH MOBILE EQUIPMENT WITH PERMANENT MAGNET WITH MONOSTABLE OPERATION|
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