EP1248278B1 - Déclencheur électromagnétique comportant un circuit électromagnétique dont l'armature mobile est apte à accuper trois positions d'équilibre stable - Google Patents
Déclencheur électromagnétique comportant un circuit électromagnétique dont l'armature mobile est apte à accuper trois positions d'équilibre stable Download PDFInfo
- Publication number
- EP1248278B1 EP1248278B1 EP02290799A EP02290799A EP1248278B1 EP 1248278 B1 EP1248278 B1 EP 1248278B1 EP 02290799 A EP02290799 A EP 02290799A EP 02290799 A EP02290799 A EP 02290799A EP 1248278 B1 EP1248278 B1 EP 1248278B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- fixed
- electromagnetic
- trip device
- electromagnetic trip
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
- H01H71/327—Manufacturing or calibrating methods, e.g. air gap treatments
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/163—Details concerning air-gaps, e.g. anti-remanence, damping, anti-corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
- H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
- H01H71/323—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with rotatable armature
Definitions
- the invention relates to an electromagnetic trip device comprising a electromagnetic circuit comprising a fixed armature and a frame mobile device capable of occupying two positions of stable equilibrium, namely a working position in which it is pressed against the fixed armature and closes the electromagnetic circuit, and a rest position in which it is away from the fixed armature and opens the electromagnetic circuit.
- This type of trigger has a number of disadvantages, among which a difficult access to the air gap between the frames once these assemblies. However, there may be undesirable dusts that are likely to alter the airgap and, as a result, affect the proper functioning of the trigger.
- the invention aims at solving, in particular, the aforementioned drawbacks electromagnetic trigger of simple design, which presents reliable, precise and durable operation.
- the invention proposes an electromagnetic trigger such as mentioned in the introduction, characterized in that the movable armature is able to occupy a third position of stable equilibrium in which she is dismissed of the fixed armature beyond the rest position.
- the gap is in this way permanently cleared of all dust undesirable and it remains constant in a lasting way.
- the mobile armature is thus positioned stably and precise, and at the same time easily reversible, in its third position.
- FIGS. 1 to 3 show an electromagnetic trigger 1 to high sensitivity for a switch or circuit breaker, which includes, in a housing 2 supposed fixed, composed of a base 3 capped with a cover 4, a circuit electromagnetic 5 comprising a U-shaped fixed frame 6, secured housing 2 and a mobile armature 7 called pallet, likely to rotate to open or close the electromagnetic circuit 5.
- trigger 1 is described with respect to this mark, following the orientation adopted in Figure 2, which corresponds to the use on most common trigger 1.
- the fixed armature 6 and the pallet 7 are both made in one ferromagnetic material, such as a Fer - Nickel alloy.
- the fixed armature 6 comprises a first branch 8 called before and a second branch 9 said back, connected by a base 10 resting on the base 3 housing 2.
- the electromagnetic circuit 5 comprises a coil 11 comprising a carcass 12 on which is wound a winding 13, the carcass 12 being threaded on the front branch 8 of the fixed armature 6 and secured to the base 3.
- the magnet 14, shaped parallelepiped, is fixed by one of its ends on the base 10 of the fixed armature 6, preferably by welding. More precisely, the magnet 14 is fixed on an upper face 15 of the base 10, which also has a face lower 16 opposite.
- the pallet 7 is capable of occupying at least two equilibrium positions stable, ie a working or engaged position, in which it is is pressed against the branches 8, 9 of the fixed armature 6 and closes the circuit electromagnetic device 5, and a rest or triggered position, in which it is removed from the fixed armature 6 and opens the electromagnetic circuit 5.
- the pallet 7 is biased towards its position triggered by a spring 17 of reminder operating in tension.
- the pallet 7 has two opposite parallel flat faces, namely a upper face 18 and a lower face 19.
- the free ends 20, 21 respectively of the front branches 8 and rear 9 form polarization surfaces located substantially in the same plane P bias, with which cooperates in the engaged position the face lower 19 of the pallet 7.
- the pallet 7 has the shape of a trident and comprises a body 22 of shape rectangular with two side wings 23, 24 bent backwards, and whose rear edges 25 are beveled to form knives 26 for the articulation of the pallet 7.
- Each knife 26 has an inclined face 27 facing upwards, terminated downward by an edge 28 located substantially in the plane of the lower face 19 of the pallet 7.
- the ridges 28 together form an axis A of pivoting of the pallet 7.
- This plate 31 is a one-piece piece made for example in a metal material for rigidity purposes. It has a body 32 plated against the rear face 30 of the rear branch 9, which it substantially covers. This body 32 is extended upward, in the form of a fork, by two legs 33, 34 which protrude from the fixed armature 6 projecting from the plane of polarization P, disposed opposite the wings 23, 24 of the pallet 7, and against which the knives come 26.
- each lug 33, 34 has a front face 35 against which comes to apply, under the action of the return spring 17, the edge 28 of the knife, 26 in the engaged position ( Figure 4).
- the pallet 7 In the tripped position, the pallet 7 is in linear contact, by its body 22, with the rear branch 9, the lower face 19 of the pallet 7 being in support on a rear edge 36 of the free end 21 of the rear branch 9 ( Figure 5).
- the pallet 7 has, at its wings 23, 24, a transverse extension superior to that of the rear branch 9, the knives 26 being permanently spaced laterally thereof.
- the knives 26 never being in contact with the rear branch 9, they do not produce, during a possible wear, no particle likely to be deposit on the polarization surface 20, 21.
- the gap between the pallet 7 and the fixed armature 6 is kept substantially constant.
- the efficiency, the speed and the life of the trigger 1 are increased.
- the pallet 7 has a rearward tail 37 which extends beyond wings 23, 24 exceeding from these, which is, being free from itself move, between the legs 33, 34 of the wafer 31, and in which is anchored one of the upper ends 38 of the return spring 17.
- This upper end 38 of the return spring 17 forms a loop inserted in a through hole 39 made in the tail 37, beyond the edges 28 to the rear, so as to form a cantilever allowing the pivoting of the pallet 7, under the action of the spring 17, around the axis A formed by its edges 28.
- the wafer 31 ends down by a lower tab 40 folded rearward, in which is anchored the other end, lower 41, spring recall 17.
- the upper legs 33, 34 are each extended, upward, by an elbow extension 42 forming a hook defining a housing 43 likely to receive the pallet 7.
- the hook 42 comprises, towards the rear, an inclined bottom 44 connected to the leg 33, 34 by a portion 45 folded back at right angles to the leg 33, 34, and, upwardly, a return 46 folded at right angles to the background 44.
- the bottom 44 has a bearing surface 47 turned towards the front and towards the high, while the return 46 has a bearing surface 48 facing towards the fixed armature 6, that is to say forward and downward.
- the pallet 7 is likely to occupy a third equilibrium position stable, called lifting, in which it is inclined and is separated from the fixed armature 6 beyond the rest position, and in which it cooperates with the hook 42 being received in the housing 43 ( Figures 6, 7, 8).
- the tail 37 of the pallet 7 has, towards the rear, an end portion 49 reduced transverse extension delimited forward by two recesses lateral 50, 51 forming stops.
- the pallet 7 can be moved to its raised position from its position triggered under the action, for example, of an automated gripping device (not shown), which seizes the pallet 7 in the released position then, pulling on the spring, place the pallet 7 in the raised position in cooperation with the dwelling 43.
- an automated gripping device not shown
- the pallet 7 can be re-established in the released position - or directly in the engaged position - from the raised position, by the same automated gripping device, which, grasping the pallet 7, removes it from the housing 43 by pulling on the spring 17 to then deposit it on the fixed armature 6.
- the spring 17 is slightly tilted backwards, from top to bottom.
- This cleaning which takes place in particular when mounting the trigger 1, can be carried out by ultrasound, by sprinkling, in particular by cryogenic spraying such as a jet of carbon dioxide, or by any other known equivalent method of the skilled person.
- the portions 45 of the hooks 42 folded towards the rear each have a recess 52 inward, which bypasses the pallet 7 during its passage from the triggered position to the raised position, before coming to press against the bottom 44 of the hook 42.
- the plate 31 has, in its lower part, means integrated latching in the form of two arms 54, 55 protruding from the body 32 in its lower part, come from matter with him and folded at right angles to front, and which frame the rear branch 9 near the base 10 of the fixed armature 6.
- the arms 54, 55 are arranged between, on the one hand, upwards, two ears 56, 57 salient transversely of the rear branch 9 approximately halfway up the latter, and on the other hand, downwards, the base 10 of the fixed armature 6.
- Each arm 54, 55 furthermore has, on its upper edge at near the body 32, a boss 53 projecting upwards and which, under the effect of the tension of the spring 17 on the plate 31 rests against one face corresponding lower ear 56, 57 so as to catch up with the games elevation likely to appear between the plate 31 and the fixed armature 9.
- the arms 54, 55 are resiliently flexible, and present each a boss 58 projecting inwards.
- each arm 54, 55 is formed, at the boss 58, a U-shaped or V-shaped cutout defining a tooth 59 which projects from the arm 54, 55 towards the body 32 of the wafer 31, and has a bearing surface 60 facing towards the back looking at the body 32.
- the insert body 32 has, opposite and to the right of the teeth 59, a tongue 61 formed by a V-shaped cut-out in the wafer body 32 and which, in the absence of stress, is inclined forward.
- the tongue 61 has a certain elasticity so that, in position snapped, the rear branch 9 is squeezed between the teeth 59 and this tongue 61.
- the base 3 and the cover 4 are two one-piece pieces each made by molding a synthetic material such as PVC, polypropylene, polyoxymethylene, or equivalent.
- the base 3 comprises a bottom wall 62 on which the circuit rests electromagnetic 5, bordered by two lateral walls 63, 64 opposite, of which protrude teeth 65 outwardly for latching the lid 4.
- the side walls 63, 64 extend forwardly beyond the wall of bottom 62, and the base 3 has, at the front, a through hole 66 with section rectangular, extended from one wall 63 to the other 64.
- This hole 66 is bordered forwards by a cross member 67 forming the end front of the base 3, and towards the rear by a partition 68 which separates it from the wall of background 62.
- the base 3 also has two identical pairs of pins 69, 70 disposed facing transversely, at each of the junctions between the base 3 and the sidewalls 63, 64. Each pair includes a first 69 and a second 70 nipples projecting upwards and inwards, at the junction between the side wall 63, 64 and the bottom wall 62.
- the first pin 69 located near the partition 68, has transversal and elevation dimensions respectively higher and lower than those of the second nipple 70.
- Each nipple 69, 70 is rounded inwards, the nipples 69, 70 delimiting together, in line with the bottom wall 62, a receiving zone 71 of the base 10 of the fixed armature 6.
- the bottom wall 62 has, to the right of the reception zone 71, a zone 72 elastically deformable, this zone 72 being more particularly able to sink elastically down under the effect of pressure that would be applied from top to bottom.
- the base 3 has, near the center of this deformable zone 72, a pin 73 which protrudes from the bottom wall 62 upwards and has one end free 74 forming a support surface located relative to the deformable zone 72.
- this zone 72 is here inscribed in a circle inside which the bottom wall 62 has a tapered conical section facing downwards, the bottom wall 62 thinner from the edge of the circle towards its center - that is to say on the right of the pawn 73.
- the cover 4 is in turn a hollow part, generally parallelepipedic, having an upper wall 75 bordered by a wall before 76, a rear wall 77, and two side walls 78, 79 which define together, downwards, an opening 80 through which the cover 4 is intended for be associated with the base 3.
- each side wall 78, 79 has two 81 legs paired in each of which is made a window 82 intended to cooperate with one of the teeth 65 of the base 3 to achieve latching the lid 4.
- each side wall 78, 79 has a notch 83 between the tabs 81, intended to cooperate with a complementary bead 84 in projecting outwards on each side wall 63, 64 of the base 3.
- Each side wall 78, 79 of the lid 4 further has a inner surface 85 along which runs a rib 86 protruding towards the interior, which extends from the upper wall 75 towards the opening 80.
- rib 86 has a lower end portion 87 protruding from the notch 83 downward, terminated by a surface 88 forming a stop.
- the fixed armature 6 When mounting the trigger 1, the fixed armature 6 is arranged on the base 3, its base 10 being placed in the receiving zone 71, which is complementary, being inserted between the nipples 69, 70 which surround the area deformable 72 and which, forming wedges, limit the longitudinal deflection and possibly transverse of the fixed armature 6, the limitation of the deflection crosswise can also be performed by the side walls 63, 64.
- the lower face 16 of the base rests on the pin 73 while being in contact with the bearing surface 74 thereof, which is of limited area with respect to that of the deformable zone 72 to concentrate the constraints.
- the latching of the cover 4 on the base 3, with the stop 88 of the rib 86 looking at the deformable zone 72, causes, by the dimensions and the conformation of the base 3, the cover 4 and the base 10 of the fixed armature 6, the support of this stop 88 against the upper face 15 of the base 10 against the stress on the deformable zone 72.
- the base 10 is then tightened, maintained, immobilized in elevation between the pin 73 and the rib 86, the deformable zone 72 urging, under the effect of its own elasticity, the base 10 towards the lid 4.
- the base 10 presses the pin 73, which causes the depression of the deformable zone 72 and, by the elasticity of this last, the catching up of the games likely to appear between the base 10 of the fixed armature 6, the base 3, and the cover 4, and the precise positioning of the fixed armature 6 relative to the housing 2.
- the cover 4 has, on its front walls 76 and rear 77, two fixing lugs 89, 90 perforated or hollowed out in the form of an ear, for securing the trigger 1 to a protective device differential (not shown) bistable capable of being operated by the trigger 1.
- the trigger 1 comprises an actuating device 119 which comprises a pusher 114 inserted into a through hole 115 practiced in the upper wall 75 of the cover 4, to the right of the pallet body 22.
- the pusher 114 comprises an upper end portion 116 projecting from the upper wall 75 to the outside and likely to cooperate with the device differential protection, and a lower extreme portion 117 protruding from this wall 75 inwards, and whose end forms or carries a head 118 hemispherical capable of cooperating with the pallet body 22.
- trigger 1 The operation of trigger 1 is briefly described.
- the pallet 7 is supposed to be in its engaged position, the push 114 being in a so-called depressed position where the head 118, which is resting against the pallet body 22, is at a distance from the wall 75 ( Figures 2, 3).
- the pusher 114 finds its depressed position by forcing the pallet 7 to occupy its position engaged.
- the accuracy of the positioning of the pusher 114 by relative to the housing 2 depends on the action accuracy of the trigger 1, both in triggered position only in the engaged position.
- the elevation position of the pusher 114 depends on positioning in elevation of the reinforcement 6, 7, that is to say, considering the fact that the pallet 7 is caught between the pusher 114 and the fixed armature 6, positioning of the fixed armature 6 relative to the housing 2. This positioning being precise, as we have seen above, the precision of the positioning of the push 114 relative to the housing 2 is assured.
- the carcass 12 comprises a lower flange 91 and a upper flange 92 framing the winding 13, connected by a hollow core 93 threaded on the branch before 8, and having a through hole 94 whose shape is complementary to it.
- the carcass 12 further comprises a rectangular section foot 95 which protrudes from the lower flange 91, downwards.
- the carcass 12 is assembled at base 3 by depressing its foot 95 into the hole 66.
- the dimensions foot 95 and hole 66 are chosen so that, once the hole 94, the foot 95 is mounted tightly in the latter, so that the carcass 12, once assembled, be held firmly in one position fixed predetermined.
- the coil 13 can be directly connected to an electric circuit (no represented), such as an electronic card, nevertheless, according to a preferred mode of realization, the foot 95 has two through holes 96 in each of which is inserted a metal pin 97 having a lower portion 98 salient intended to be connected to the electrical circuit, as well as an upper part 99 protrusion intended to be associated with the winding wire 13, for example by welding.
- an electric circuit no represented
- the foot 95 has two through holes 96 in each of which is inserted a metal pin 97 having a lower portion 98 salient intended to be connected to the electrical circuit, as well as an upper part 99 protrusion intended to be associated with the winding wire 13, for example by welding.
- the pin 97 Before being assembled to the carcass 12, the pin 97 has substantially the shape of a J, its lower part 98 being of greater transverse dimension to that of its upper part 99 ( Figure 25).
- Each pin 97 presents near its center, that is to say at the junction between its lower parts 98 and upper 99, a recess 100 forming a stop which, when the pin 97 is inserted into the hole 96 corresponding in the foot 95, is applied against a bearing surface 101 transverse formed in the hole 96.
- the upper portion 99 In order to immobilize the pin 97 in the foot 95 to make it secured to the carcass 12, its upper portion 99 is folded Z forwardly.
- the upper portion 99 has, at a certain distance from the recess 100, a narrowing 102 which, when the upper portion 99 is folded, forms the central branch of the Z and is housed in a complementary slot 103 made in the upper surface of the lower flange 91, and adjacent to the hole 96.
- the pin 97 is thus immobilized in translation in the direction elevation.
- the front branch 8 of the fixed armature 6 has a front face 104 and an opposite rear face 105, connected by two lateral faces 106, 107.
- the hole through 94 of the core 93 of the carcass 12 also has a front face 108 and an opposite rear face 109, connected by two lateral faces 110, 111.
- Each game J1, J2, J3, J4 is here predetermined by the chain of odds the shorter connection directly connecting the junction surfaces of the fixed armature 6, the base 3 and the carcass 12, starting from a terminal surface formed by a face 104, 105, 106, 107 of the front branch 8 delimiting said game, to result in the face 108, 109, 110, 111 of the hole 94 opposite, forming another surface terminal defining the same set J1, J2, J3, J4.
- the dimension of elevation or height of the carcass 12, measured between the faces not facing the flanges, that is to say one face lower 112 of the lower flange 91 and an upper face 113 of the flange upper 92, is chosen lower than the dimension of elevation or height of the front branch 8, that is to say the distance separating the upper face 15 of the base 10 of the polarization surface 20.
- the foot 95 is pressed into the hole 66 to a predetermined depth, such as, on the one hand, the branch before 8 exceeds the upper flange 92, the free end 20 of the front branch 8 protruding from the upper face 113 of the upper flange 92, and, secondly, the lower face 112 of the lower flange 91 is spaced from the upper face 15 of the base 10 so that there is a game J5 between them ( Figure 2).
- the carcass 12 is mounted rigidly relative to the housing, while being mounted floating relative to the fixed armature 6, that is to say spaced of it in every respect.
- the fixed armature 6 is thus preserved from the constraints and deformations to which the carcass 12 is subjected, in particular during mounting pins 97 on the aforementioned electrical circuit.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
- Electromagnets (AREA)
- Near-Field Transmission Systems (AREA)
- Casings For Electric Apparatus (AREA)
- Magnetic Treatment Devices (AREA)
- Braking Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Control Of Position Or Direction (AREA)
Description
- il comprend une plaquette fixée à l'armature fixe et par rapport à laquelle est montée pivotante l'armature mobile ;
- ladite armature mobile est sollicitée vers sa position de repos par un ressort de rappel ancré d'une part dans ladite armature mobile, et d'autre part sur ladite plaquette ;
- ladite plaquette comporte une surface d'appui contre laquelle est susceptible de s'appliquer, sous l'action du ressort de rappel, une partie biseautée de l'armature mobile, ladite partie biseautée formant un axe de pivotement de l'armature mobile.
- la plaquette comporte un logement situé à distance de l'armature fixe, susceptible de recevoir l'armature mobile dans sa troisième position d'équilibre stable ;
- dans sa troisième position de repos, l'armature mobile se trouve maintenue dans ledit logement sous l'action du ressort de rappel ;
- l'armature mobile présente une butée venant s'appliquer, sous l'action du ressort de rappel, contre une surface d'appui dudit logement, ladite butée étant distincte de ladite partie biseautée ;
- l'armature mobile présente un trou traversant pour l'ancrage du ressort, et en ce qu'il existe un porte-à-faux entre ce trou et ladite butée.
- ladite plaquette comporte une patte qui dépasse de l'armature et présente une surface formant ladite surface d'appui contre laquelle est susceptible de s'appliquer ladite partie biseautée de l'armature mobile, cette patte étant prolongée, au-delà de l'armature par une extension coudée en forme de crochet qui forme ledit logement ;
- la plaquette comporte deux pattes semblables qui encadrent l'armature mobile dont une partie, dans laquelle est ancré le ressort, se trouve, en étant libre de se mouvoir, entre les pattes ;
- l'armature mobile se présente sous la forme d'une palette ;
- l'armature fixe est en forme de U, et comporte une première et une deuxième branches reliées par une base, ladite plaquette étant fixée à ladite deuxième branche ;
- le déclencheur comporte un boítier dans lequel est disposé le circuit électromagnétique, ledit boítier comportant un socle coiffé d'un couvercle, socle sur lequel repose l'armature fixe ;
- l'armature fixe est assujettie audit boítier, sa base se trouvant immobilisée, serrée, entre le socle et le couvercle.
- la figure 1 est une vue en perspective d'un déclencheur électromagnétique conforme à l'invention ;
- la figure 2 est une vue en coupe d'élévation longitudinale suivant le plan de coupe II-II de la figure 1 ;
- la figure 3 est une vue en coupe d'élévation transversale partiellement selon la ligne IIIa - IIIa, et partiellement selon la ligne IIIb - IIIb de la figure 2 ;
- la figure 4 est une vue d'élévation en plan du déclencheur électromagnétique des figures précédentes, sans son couvercle, représenté dans une première position d'équilibre stable de l'armature mobile ;
- la figure 5 est une vue analogue à la figure 4, dans une deuxième position d'équilibre stable de l'armature mobile ;
- la figure 6 est une vue similaire aux figures 4 et 5, dans une troisième position d'équilibre stable de l'armature mobile ;
- la figure 7 est une vue en plan de dessus du déclencheur électromagnétique de la figure 6 ;
- la figure 8 est une vue en coupe d'élévation longitudinale selon la ligne VIII - VIII de la figure 7 ;
- la figure 9 est une vue en perspective du déclencheur électromagnétique des figures précédentes, dépourvu de son socle et de son couvercle ainsi que du bobinage de la bobine, dans la position de la figure 4 ;
- la figure 10 est une vue en perspective du déclencheur électromagnétique de la figure 9, selon un autre angle de vue ;
- la figure 11 est une vue en plan de dessus de l'armature mobile d'un déclencheur selon l'invention ;
- la figure 12 est une vue en plan d'élévation longitudinale de l'armature mobile de la figure 11 ;
- la figure 13 est une vue en perspective d'une pièce de guidage de l'armature mobile d'un déclencheur électromagnétique selon l'invention ;
- la figure 14 est une vue en plan d'élévation longitudinale de la pièce de guidage de la figure 13 ;
- la figure 15 est une vue en plan de dessus de la pièce de guidage de la figure 13;
- la figure 16 est une vue en plan d'élévation longitudinale de l'armature fixe d'un déclencheur électromagnétique selon l'invention ;
- la figure 17 est une vue en plan d'élévation transversale de l'armature fixe de la figure 16 ;
- la figure 18 est une vue en perspective du socle du déclencheur électromagnétique des figures 1 à 8 ;
- la figure 19 est une vue en plan de dessus du socle de la figure 18 ;
- la figure 20 est une vue en coupe d'élévation longitudinale du socle des figures 18 et 19, selon la ligne XX - XX de la figure 19 ;
- la figure 21 est une vue en coupe d'élévation longitudinale du couvercle du déclencheur électromagnétique de la figure 2, représenté seul ;
- la figure 22 est une vue en plan d'élévation longitudinale de la carcasse de la bobine d'un déclencheur électromagnétique selon l'invention ;
- la figure 23 est une vue en plan de dessous de la carcasse de la figure 22 ;
- la figure 24 est une vue en coupe d'élévation longitudinale de la bobine du déclencheur électromagnétique des figures 1 à 8, selon la ligne XXIV - XXIV de la figure 7 ;
- la figure 25 est une vue en plan d'un picot entrant dans la réalisation de la bobine de la figure 24.
- une direction L longitudinale orientée depuis une localisation dite arrière vers une localisation opposée dite avant ;
- une direction T transversale ; et
- une direction E d'élévation, orientée depuis une localisation dite « basse » ou « inférieure » vers une localisation opposée dite « haute » ou supérieure.
- un premier jeu J1 entre la face avant 104 de la branche avant 8 et la face arrière 109 du trou 94 de l'âme 93 en regard ;
- un deuxième jeu J2 entre la face arrière 105 de la branche avant 8 et la face avant 108 du trou 94 de l'âme 93 en regard ;
- un troisième J3 et un quatrième J4 jeux entre les faces latérales respectives 106, 107, 110, 111 de la branche avant 8 et du trou 94 de l'âme 93 en regard.
Claims (14)
- Déclencheur électromagnétique comportant un circuit électromagnétique (5) comprenant une armature fixe (6) comportant une première et une deuxième branche (8, 9) reliées par une base (10) ainsi qu'une armature mobile (7) susceptible d'occuper deux positions d'équilibre stable, à savoir une position de travail dans laquelle elle se trouve plaquée contre l'armature fixe (6) et ferme le circuit électromagnétique (5), et une position de repos dans laquelle elle est écartée de l'armature (6) et ouvre le circuit électromagnétique '5), caractérisé en ce que l'armature mobile (7) est apte à occuper une troisième position d'équilibre stable dans laquelle elle est écartée de l'armature fixe (6) au-delà de la position de repos, en étant espacée de chacune des branches (8, 9) de l'armature fixe (6).
- Déclencheur électromagnétique selon la revendication 1, caractérisé en ce qu'il comprend une plaquette (31) fixée à l'armature fixe (6) et par rapport à laquelle est montée pivotante l'armature mobile (7).
- Déclencheur électromagnétique selon la revendication 2, caractérisé en ce que ladite armature mobile (7) est sollicitée vers sa position de repos par un ressort de rappel (17) ancré d'une part dans ladite armature mobile (7), et d'autre part sur ladite plaquette (31).
- Déclencheur électromagnétique selon la revendication 2 ou la revendication 3, caractérisé en ce que ladite plaquette (31) comporte une surface d'appui (35) contre laquelle est susceptible de s'appliquer, sous l'action du ressort de rappel (17), une partie biseautée (26) de l'armature mobile (7), ladite partie biseautée (26) formant un axe (A) de pivotement de l'armature mobile (7).
- Déclencheur électromagnétique selon la revendication 4, caractérisé en ce que la plaquette (31) comporte un logement (43) situé à distance de l'armature fixe (6), susceptible de recevoir l'armature mobile (7) dans sa troisième position d'équilibre stable.
- Déclencheur électromagnétique selon la revendication 5, caractérisé en ce que, dans sa troisième position de repos, l'armature mobile (7) se trouve maintenue dans ledit logement (43) sous l'action du ressort de rappel (17).
- Déclencheur électromagnétique selon la revendication 6, caractérisé en ce que l'armature mobile (7) présente une butée (50, 51) venant s'appliquer, sous l'action du ressort de rappel, contre une surface d'appui (47) dudit logement (43), ladite butée (50, 51) étant distincte de ladite partie biseautée (26).
- Déclencheur électromagnétique selon la revendication 7, caractérisé en ce que ladite armature mobile (7) présente un trou traversant (39) pour l'ancrage du ressort (17), et en ce qu'il existe un porte-à-faux entre ce trou (39) et ladite butée (50, 51).
- Déclencheur électromagnétique selon l'une des revendications 5 à 8, caractérisé en ce que ladite plaquette (31) comporte une patte (33, 34) qui dépasse de l'armature fixe (6) et présente une surface formant ladite surface d'appui (35) contre laquelle est susceptible de s'appliquer ladite partie biseautée (26) de l'armature mobile (7), cette patte (33, 34) étant prolongée, au-delà de l'armature fixe (6), par une extension coudée (42) en forme de crochet qui forme ledit logement (43).
- Déclencheur électromagnétique selon la revendication 9, caractérisé en ce que la plaquette (31) comporte deux pattes (33, 34) semblables qui encadrent l'armature mobile (7) dont une partie (37), dans laquelle est ancré le ressort de rappel (17), se trouve, en étant libre de se mouvoir, entre les pattes (33, 34).
- Déclencheur électromagnétique selon l'une des revendications 2 à 10, caractérisé en ce que l'armature mobile (7) se présente sous la forme d'une palette.
- Déclencheur électromagnétique selon l'une des revendications 2 à 11, caractérisé en ce que l'armature fixe (6) est en forme de U, ladite plaquette (31) étant fixée à ladite deuxième branche (9) de l'armature fixe (6).
- Déclencheur électromagnétique selon la revendication 12, caractérisé en ce qu'il comporte un boítier (2) dans lequel est disposé le circuit électromagnétique (5), ledit boítier (2) comportant un socle (3) coiffé d'un couvercle (4), socle (3) sur lequel repose l'armature fixe (6).
- Déclencheur électromagnétique selon la revendication 13, caractérisé en ce que l'armature fixe (6) est assujettie audit boítier (2), sa base (10) se trouvant immobilisée, serrée, entre le socle (3) et le couvercle (4).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0104724 | 2001-04-06 | ||
FR0104724A FR2823371B1 (fr) | 2001-04-06 | 2001-04-06 | Declencheur electromagnetique comportant un circuit electromagnetique dont l'armature mobile est apte a occuper trois positions d'equilibre stable |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1248278A1 EP1248278A1 (fr) | 2002-10-09 |
EP1248278B1 true EP1248278B1 (fr) | 2005-10-19 |
Family
ID=8862044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02290799A Expired - Lifetime EP1248278B1 (fr) | 2001-04-06 | 2002-03-29 | Déclencheur électromagnétique comportant un circuit électromagnétique dont l'armature mobile est apte à accuper trois positions d'équilibre stable |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1248278B1 (fr) |
CN (1) | CN1249759C (fr) |
AT (1) | ATE307385T1 (fr) |
DE (1) | DE60206682T2 (fr) |
ES (1) | ES2248495T3 (fr) |
FR (1) | FR2823371B1 (fr) |
PL (1) | PL200461B1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110767407B (zh) * | 2019-10-14 | 2021-03-05 | 西南交通大学 | 一种多稳态电磁操动机构 |
FR3118334B1 (fr) | 2020-12-18 | 2022-12-23 | Legrand France | Appareil électrique de protection d’une installation électrique en courant alternatif |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1512064A (en) * | 1921-03-31 | 1924-10-21 | Krupp Ag | Automatic electromagnetic switch |
FR2620264B1 (fr) * | 1987-09-03 | 1989-12-01 | Merlin Gerin | Declencheur magnetique a articulation a couteau |
FR2630256B1 (fr) * | 1988-04-14 | 1995-06-23 | Merlin Gerin | Declencheur electromagnetique a haute sensibilite |
-
2001
- 2001-04-06 FR FR0104724A patent/FR2823371B1/fr not_active Expired - Lifetime
-
2002
- 2002-03-29 EP EP02290799A patent/EP1248278B1/fr not_active Expired - Lifetime
- 2002-03-29 AT AT02290799T patent/ATE307385T1/de not_active IP Right Cessation
- 2002-03-29 DE DE60206682T patent/DE60206682T2/de not_active Expired - Lifetime
- 2002-03-29 ES ES02290799T patent/ES2248495T3/es not_active Expired - Lifetime
- 2002-04-04 PL PL353196A patent/PL200461B1/pl unknown
- 2002-04-05 CN CN02106154.8A patent/CN1249759C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE307385T1 (de) | 2005-11-15 |
EP1248278A1 (fr) | 2002-10-09 |
CN1249759C (zh) | 2006-04-05 |
ES2248495T3 (es) | 2006-03-16 |
PL200461B1 (pl) | 2009-01-30 |
FR2823371A1 (fr) | 2002-10-11 |
DE60206682T2 (de) | 2006-07-13 |
FR2823371B1 (fr) | 2004-11-26 |
PL353196A1 (en) | 2002-10-07 |
DE60206682D1 (de) | 2005-11-24 |
CN1380670A (zh) | 2002-11-20 |
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