EP2634784B1 - Boîtier de relais électromécanique, relais, ensemble de commutation et ensemble de support de relais électromagnétique - Google Patents

Boîtier de relais électromécanique, relais, ensemble de commutation et ensemble de support de relais électromagnétique Download PDF

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Publication number
EP2634784B1
EP2634784B1 EP13156962.6A EP13156962A EP2634784B1 EP 2634784 B1 EP2634784 B1 EP 2634784B1 EP 13156962 A EP13156962 A EP 13156962A EP 2634784 B1 EP2634784 B1 EP 2634784B1
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EP
European Patent Office
Prior art keywords
housing
support
fixing
axis
relay
Prior art date
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Application number
EP13156962.6A
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German (de)
English (en)
French (fr)
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EP2634784A1 (fr
Inventor
Alexandre Flaceau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Radiall SA
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Radiall SA
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Filing date
Publication date
Priority claimed from FR1251805A external-priority patent/FR2987492B1/fr
Priority claimed from FR1260295A external-priority patent/FR2997547B1/fr
Application filed by Radiall SA filed Critical Radiall SA
Publication of EP2634784A1 publication Critical patent/EP2634784A1/fr
Application granted granted Critical
Publication of EP2634784B1 publication Critical patent/EP2634784B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H45/00—Details of relays
    • H01H45/02—Bases; Casings; Covers
    • H01H45/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/043—Details particular to miniaturised relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature

Definitions

  • the present invention relates to an electromechanical relay housing, an electromechanical relay comprising such a housing, and a switching assembly comprising a plurality of electromechanical relays.
  • the invention also relates to an electromagnetic relay support assembly.
  • an electromechanical relay is a device for switching electrical contacts.
  • the invention more particularly relates to electromechanical relays designed to operate in the field of microwave signals, which have a frequency greater than 1 GHz.
  • a relay consists of a housing which contains a switching member comprising at least one electromagnetic actuator which, when powered by an electrical control signal, selectively establishes electrical contact between a plurality of electrical inputs through a movable portion.
  • the switching members of the electromechanical relays thus comprise moving parts that can move in a translational or rotational movement.
  • the relays are subjected to vibrations and / or shocks likely to establish or cut the contacts electric by mistake.
  • relays embedded in a satellite are subject to significant vibrations when the spacecraft takes off or the satellite is put into orbit and, when the satellite detaches from the spacecraft and during the deployment of the solar panels of the satellite, the relays are subjected to shocks up to an intensity equivalent to an acceleration of 6 000 G.
  • JP-A-2006-155972 proposes to insert silentblocs, for example silicone washers, between fixing screws and the support.
  • silentblocs are relatively heavy, which is not advantageous especially in the field of aerospace where we try to lighten the maximum equipment sent into space.
  • the synthetic materials used for the manufacture of silentblocs do not satisfactorily transmit the heat generated by the relay to the support on which it is attached. This is particularly disadvantageous especially for space equipment because when the relays are in the vacuum, the heat can be dissipated only by conduction, by the points of contact between the housing and the support.
  • the invention more particularly intends to remedy by proposing a light electromechanical relay mounting box, of simple design and allowing the heat dissipation generated by the relay to be dissipated to a support for fixing the housing.
  • the fixing elements each comprise a fixing portion having a bearing surface on the support and fixing means on the support.
  • the fasteners further comprise a connecting portion connecting the fastening portion to the body and the connecting portions are adapted to bend deformed at least in the main direction, i.e. in a direction parallel to the movement. moving parts of the relay.
  • the connecting portions of the housing fastening elements deform in bending when the relay is subjected to stresses resulting from shocks and / or vibrations, which attenuates these stresses, by damping, and thus prevents electrical contacts of the switching member to switch accidentally.
  • a housing is lightweight, simple in design and inexpensive to manufacture. This housing also makes it possible to satisfactorily transmit the heat generated by the switching member to the fixing support, allowing direct contact between the fixing elements and the support, without requiring the addition of damping parts such as silent blocks.
  • a maximum width of the first fastener is less than a minimum distance between the second fastener elements.
  • the invention also relates to an electromechanical relay, comprising a switching member housed in a housing as described above.
  • the invention also relates to a switching assembly, comprising a plurality of housings fixed on a support so that the first fastener of a first housing is placed between the second fasteners of a second adjacent housing.
  • the invention also relates to an electromagnetic relay support assembly, which comprises such a housing and, in addition, at least one damping element for shock and vibration of the housing body relative to the support, made from a elastomer.
  • damping elements work in particular in compression when the relay is subjected to stresses resulting from shocks and / or vibrations. These damping elements mitigate the stresses that remain on the housing despite the fixing elements, and also prevent the electrical contacts of the switching member to switch accidentally.
  • the Figures 1 and 2 show an electromechanical relay 1 comprising a housing 3 and a switching member 2 of generally cylindrical shape with circular section.
  • the switching member 2 comprises several electrical connection jacks 22, provided for the connection of electrical cables for transmitting electrical input and output signals, and more particularly for microwave signals which have a frequency greater than 1 GHz.
  • the housing 3 comprises a hollow body 4 inside which is housed the switching member 2.
  • the body 4 is cylindrical with a circular section and extends along a longitudinal geometric axis Z4.
  • a first longitudinal end 41 of the body 4 is open and the second longitudinal end 42 of the body 4 is closed by a circular bottom.
  • the open end 41 of the body 4 comprises two pierced lugs 4a and 4b provided for fixing the switching member 2 to the housing 3.
  • the outer lateral surface S4 of the body 4 comprises two diametrically opposed structural reinforcements 43a and 43b, forming an outer thickening extending along the length of the body 4, parallel to the axis Z4, between the ends 41 and 42.
  • the housing 3 comprises four elements 5a1, 5a2, 5b1 and 5b2 for fixing the body 4 to a support 6.
  • Each fixing element 5a1, 5a2, 5b1 and 5b2 comprises a connecting part or lug 51 and a fixing portion 52.
  • tabs 51 each connect one of the longitudinal ends of one of the reinforcements 43a or 43b to the attachment portion 52 of the fixing element 5a1, 5a2, 5b1 or 5b2 corresponding.
  • the housing 3 is symmetrical with respect to a median plane P3 which passes through the axis Z4, between the fixing elements 5a1 and 5a2 on the one hand, and the fixing elements 5b1 and 5b2 on the other hand.
  • the fixing elements 5a1 and 5b1 on the one hand, and the fixing elements 5b1 and 5b2 on the other hand are diametrically opposed.
  • the fixing parts 52 each comprise a bearing surface S52 placed on the support 6.
  • the bearing surfaces S52 of the fastening elements 5a1, 5a2, 5b1 and 5b2 are in direct contact with the support 6. Consequently, the transmission heat between the housing 3 and the support 6 is optimized, which makes it possible to evacuate the heat generated by the switching member 2.
  • the bearing surfaces S52 are coplanar and extend in a bearing plane P52 perpendicular to the median plane P3 and parallel to the axis Z4.
  • Each fixing portion 52 has a central hole 53 for the passage of a fastening element 7 such as a screw, represented by its axis only at the figure 1 .
  • the holes 53 and the screws 7 thus constitute fixing means of the housing 3 on the support 6.
  • the axis Z4 of the body 4 extends horizontally.
  • the tabs 51 each extend along a geometric axis A51 forming a bend in a plane perpendicular to the axis Z4.
  • Each tab 51 comprises a proximal portion 50 which is connected to the end of one of the reinforcements 43a or 43b and which extends laterally outwards, perpendicular to the median plane P3, and a distal portion 59 connected to the proximal portion 50 on one side and the attachment portion 52 on the other.
  • the distal portion 59 of each fastener 5a1, 5a2, 5b1 and 5b2 extends perpendicularly to the bearing plane P52.
  • each tab 51 in a plane perpendicular to the axis A51, is generally rectangular and has two small sides having a width l, as well as two large sides having a length L greater than the width l.
  • the width l of each section, along the axis A51, is oriented parallel to the axis Z4 and the length L of each section extends in a plane perpendicular to the axis Z4. These lengths L and l may vary along the tab 51 so as to distribute the mechanical stresses undergone during the deformation.
  • the switching member 2 comprises at least one mobile part not visible at the figure 1 , such as an electromagnetic actuator which, when powered by an electrical control signal, makes electrical contact between some of the electrical inputs of the switching member 2.
  • these moving parts move in translation in accordance with a main direction D2 parallel to the axis Z4, in one direction and the other.
  • the shock and / or vibrations may move the moving parts in an incorrect position, causing the accidental switching of the member 2.
  • the geometry of the fastening elements 5a1, 5a2, 5b1 and 5b2 is designed to attenuate the transmission of shocks and / or vibrations between the support 6 and the body 4, in particular along the main direction D2, that is to say parallel to the Z4 axis.
  • the rigidity of the legs 51 weaker in the direction Z4 than perpendicular to the axis Z4. Indeed, the width l of the section of the tabs 51 is oriented parallel to the axis Z4 and the length L of the tabs 51 is oriented in a plane perpendicular to the axis Z4.
  • the tabs 51 deform in bending, in the direction of the Z4 axis, when they are subjected to a force parallel to the Z4 axis, including a force resulting from shocks and / or vibrations.
  • the tabs 51 are relatively rigid when they are subjected to a force extending in a plane perpendicular to the axis Z4, for example a force perpendicular to the median plane P3.
  • the tabs 51 thus dissipate the mechanical energy of shocks and / or vibrations by preventing the transmission of this energy to the body 4 of the housing 3. In this way, the risks of accidental switching of the switching member 2 are attenuated.
  • FIGS. 3 to 22 illustrate relay boxes 103, 203, 303, 403, 503, 603, 703, 803 and 903 respectively in accordance with a second, third, fourth, fifth, sixth, seventh, eighth, ninth and tenth embodiment of the invention , whose elements similar to those of the first embodiment bear the same numerical references respectively increased by 100, 200, 300, 400 500, 600, 700, 800 and 900.
  • each housing 103, 203, 303, 403, 503, 603, 703, 803 and 903 comprises a hollow body 104, 204, 304, 404, 504, 604, 704, 804 or 904 inside which is housed a switch member, similar to switch member 2.
  • Each body 104, 204, 304, 404, 504, 604, 704, 804 and 904 is cylindrical with a circular cross section and extends along a longitudinal geometric axis Z104 , Z204, Z304, Z404, Z504, Z604, Z704, Z804 or Z904.
  • a first longitudinal end 141, 241, 341, 441, 541, 641, 741, 841 or 941 of the body is open and the second longitudinal end 142, 242, 342, 442, 542, 642, 742, 842 or 942 of the body is closed by a circular bottom.
  • housings 103, 203, 303, 403, 503, 603, 703, 803 and 903 similar to the housing 3 are not described again.
  • the body 104 of the housing 103 is fixed on a support 106 by means of three fastening elements 105a1, 105a2 and 105c instead of four.
  • the fastening elements 105a1 and 105a2 are similar to the fastening elements 5a1 and 5a2 and each comprise an angled tab 151 and a fastening portion 152.
  • the fasteners 105a1 and 105a2 are located on a first side of a median plane P103 passing through the axis Z104 and the fastening element 105c is opposed to the fastening elements 105a1 and 105a2, with respect to the median plane P103.
  • the fastening element 105c comprises two bent lugs 151 and 151 'which each connect the body 104 to a single fastening portion 152 whose S152 is noted as the bearing surface against the support 106.
  • the tabs 151 and 151 'of the fastener 105c are closer to each other than the tabs 151 of the fasteners 105a1 and 105a2. More particularly, the maximum distance d1 between the surfaces of the tabs 151 and 151 'of the fixing element 105c facing away from each other is strictly less than the minimum distance d2 between the surfaces of the tabs 151. fasteners 105a1 and 105a2, facing each other. In addition, the minimum distance d2 'between the attachment portions 152 of the fasteners 105a1 and 105a2 is strictly greater than the maximum width L152 of the fastening portion 152 of the fastener 105c. The distances d1, d2, d2 'and the width L152 are measured parallel to the axis Z104.
  • the operation of the housing 103 is similar to that of the housing 3, the tabs 105a1, 105a2 and 105c being designed to deform in bending along the axis Z104.
  • the outer lateral surface S204 of the body 204 of the housing 203 shown in FIGS. Figures 6 and 7 comprises four structural reinforcements 243a, 243b, 243c and 243d angularly offset by 90 ° around the axis Z204, extending over the entire length of the body 204, parallel to the axis Z204, and forming an extra thickness.
  • the housing 203 is fixed on a support 206 by means of four fastening elements 205a, 205b, 205c and 205d angularly offset by 90 °, each connected to one of the reinforcements 243a, 243b, 243c and 243d.
  • Each fastening element 205a, 205b, 205c and 205d comprises a connecting portion 251 and a securing portion 252.
  • the parts of link 251 each connect one of the longitudinal ends of one of the reinforcements 243a, 243b, 243c and 243c to the attachment portion 252 of the corresponding fastening element 205a, 205b, 205c or 205d.
  • Each fastener 252 has a bearing surface S252 in contact with the support 206.
  • the bearing surfaces S252 are coplanar and extend in a bearing plane P252.
  • Each attachment portion 252 has a central hole 253 for the passage of a not shown fastening screw.
  • the bearing surfaces S252 of the fastening elements 205a, 205b, 205c and 205d of the housing 203 are perpendicular to the longitudinal axis Z204 of the body 204.
  • the axis Z204 is vertical.
  • Each connecting portion 251 comprises two bent tabs 254 and 255 and a longitudinal leg 256.
  • the two tabs 254 and 255 of each connecting element 251 are parallel and each connect one end of the structural reinforcement 243a, 243b, 243c or 243d corresponding to the corresponding branch 256.
  • Each branch 256 thus connects the two tabs 254 and 255 corresponding to the fixing portion 252.
  • the tabs 254 and 255 each extend along a geometric axis A254 or A255 forming a bend, in a plane perpendicular to the axis Z204.
  • Each tab 254 and 255 comprises a proximal portion 250 which is connected to the end of one of the reinforcements 123a, 243b, 243c or 243d and which extends radially outwards, and a distal portion 259 connected to the proximal portion 250 on one side and the branch 256 on the other.
  • the distal portion 259 of each fastener 205a, 205b, 205c, and 205d extends in an orthoradial direction, that is, a circumferential direction.
  • each tab 254 and 255 in a plane perpendicular to the axis A254 or A255, is generally rectangular and has two small sides having a width l and two large sides having a length L greater than width l
  • the width l of each section, along the axis A254 or A255, is oriented parallel to the axis Z204 and the length L of each section extends in a plane perpendicular to the axis Z204.
  • each branch 256 taken perpendicular to the axis Z204, is square or "L" -shaped and has a first wall 257 which extends in a orthoradial direction, in the extension of the two legs 254 and 255 of the fixing element 205a, 205b, 205c or 205d corresponding.
  • Each branch 256 also comprises a second wall 258 extending in a radial direction perpendicular to the first wall 257.
  • the switching member housed in the housing 203 comprises at least one not shown mobile part which, when powered by an electrical control signal selectively establishes an electrical contact between several electrical inputs.
  • these moving parts move in translation in a main direction D2 parallel to the axis Z204, in one direction and the other.
  • the shock and / or vibrations may move the moving parts in an incorrect position, causing the accidental switching of the switching member 202.
  • the geometry of the fastening elements 205a, 205b, 205c and 205d is designed to attenuate the transmission of shocks and / or vibrations between the support 206 and the body 204, in particular along the main direction D2 of movement of the moving parts. that is, along the Z204 axis.
  • the width l of the section of the tabs 254 and 255 is oriented parallel to the axis Z204 and the length L of the tabs 254 and 255 is oriented in a plane perpendicular to the axis Z204 and therefore the tabs 254 and 255 are deformed in flexion, in the direction of the axis Z204, when they are subjected to a force parallel to the axis Z204, in particular to a force resulting from shocks and / or vibrations.
  • the tabs 254 and 255 thus dissipate the mechanical energy of shocks and / or vibrations by preventing the transmission of this energy to the body 204 of the casing 203. In this way, the risks of accidental switching of the switching member are attenuated.
  • the housing 303 shown in Figures 8 and 9 is analogous to the housing 203 of Figures 6 and 7 except that the housing 303 has three fasteners 305a, 305b and 305c instead of four, angularly offset 120 ° about the axis Z304 and each connected to the body 304 of the housing 303.
  • the fasteners 352 have, as in the previous embodiment, support surfaces S352 against a support which are perpendicular to the axis Z304.
  • the operation of the housing 303 is similar to that of the housing 203, the tabs 305a, 305b and 305c being designed to deform in bending along the axis Z304.
  • the box 403 shown in Figures 10 and 11 is designed to be fixed on a support not shown by means of four fasteners 405a, 405b, 405c and 405d angularly offset by 90 ° around the axis Z403.
  • the outer lateral surface S404 of the body 404 comprises an annular structural reinforcement 443 forming an extra thickness at the periphery of the body 404.
  • the fastening elements 405a, 405b, 405c and 405d are connected to the peripheral reinforcement 443 and each comprise a connecting portion 451 and a fixing portion 452.
  • the parts link 451 each connect the peripheral reinforcement 443 to the attachment portion 452 of the corresponding fastener 405a, 405b, 405c or 405d.
  • Each fastener 452 has a bearing surface S452 provided to be in contact with the support.
  • the bearing surfaces S452 are coplanar and extend in a bearing plane P452 perpendicular to the longitudinal axis Z404 of the body 404.
  • the axis Z404 is vertical .
  • Each connecting portion 451 comprises an angled tab 454 and a longitudinal branch 456 parallel to the axis Z404.
  • the tabs 454 each connect the structural reinforcement 443 to the corresponding branch 256.
  • Each branch 456 thus connects the corresponding tab 454 to the attachment portion 452.
  • the tabs 454 each extend along a geometric axis A451 forming a bend in a plane perpendicular to the axis Z404.
  • Each tab 454 comprises a proximal portion 450 which is connected to the reinforcement 443 and which extends radially outwards, and a distal portion 459 connected to the proximal portion 450 on one side and to the branch 456 of the other.
  • the distal portion 459 of each fastener 405a, 405b, 405c, and 405d extends in an orthoradial direction, that is, a circumferential direction.
  • each tab 454 in a plane perpendicular to the axis A451, is generally rectangular and has two small sides having a width l, as well as two large sides having a length L greater than the width l.
  • the width l of each section, along the axis A451, is oriented parallel to the axis Z404 and the length L of each section extends in a plane perpendicular to the axis Z404.
  • each branch 456 is also rectangular, and has two small sides with a width l, as well as two large sides with a length L greater than the width l.
  • the width / of each section is oriented in an orthoradial direction and the length L of each section is oriented in a radial direction.
  • the relay 402 comprises at least one not shown movable portion which, in use, moves in translation in a main direction D2 parallel to the axis Z404, in one direction and the other.
  • the geometry of the fasteners 405a, 405b, 405c and 405d is designed to attenuate the transmission of shocks and / or vibrations between the support and the body 404, particularly in a direction parallel to the main direction D2 of displacement of the moving parts. that is, a direction parallel to the Z404 axis.
  • the width l of the section of the tabs 454 is oriented parallel to the axis Z404 and the length L of the tabs 454 is oriented in a plane perpendicular to the axis Z404 and, consequently, the tabs 454 deform in flexion , in the direction of the axis Z404, when they are subjected to a force parallel to the axis Z404, in particular to a force resulting from shocks and / or vibrations.
  • the tabs 454 thus dissipate the mechanical energy of shocks and / or vibrations by preventing the transmission of this energy to the body 404 of the casing 403. In this way, the risks of accidental switching of the relay 402 are attenuated.
  • the housing 503 shown in Figures 12 and 13 is analogous to the 403 case Figures 10 and 11 except that the housing 503 has three fasteners 505a, 505b and 505c instead of four, angularly offset 120 ° about the axis Z504 and each connected to the body 504 of the housing 503.
  • the fasteners 552 have surfaces S552 perpendicular to the Z504 axis
  • the operation of the housing 503 is similar to that of the housing 403, the tabs 505a, 505b and 505c being designed to deform in bending along the Z504 axis.
  • FIGS. 14 to 16 show an electromechanical relay 601 comprising a support assembly 608 fixed on a support 606, as well as a switching member 2 represented only at the figure 14 .
  • the support assembly 608 comprises the housing 603, a base 610 and three damping elements 609a, 609b and 609c, made from a flexible and resilient material under the conditions of use of the relay 601, that is, that is, having a hardness of less than 100 Shore A under these conditions.
  • the damping elements 609a, 609b and 609c are made from an elastomer such as silicone, possibly charged with particles.
  • the housing 603 comprises a hollow body 604 inside which the switching member 2 is housed.
  • the body 604 is cylindrical with a circular section and extends along a longitudinal geometric axis Z604.
  • the housing 603 has four body fixing members 605a1, 605a2, 605b1 and 605b2 on the support 606, similar to the fasteners 5a1, 5a2, 5b1 and 5b2 of the housing 1.
  • Each fastener 605a1, 605a2, 605b1 and 605b2 comprises a connecting portion or lug 651 and a fixing portion 652.
  • the housing 603 is symmetrical with respect to a longitudinal median plane P603 which passes through the axis Z604.
  • the fixing portions 652 each comprise a flat bearing surface S652, placed on the base 610.
  • the bearing surfaces S652 of the fastening elements 605a1, 605a2, 605b1 and 605b2 are in direct contact with the base 610, which is based on the support 606. Consequently, the heat transfer between the housing 603 and the support 606 is optimized, which makes it possible to evacuate the heat generated by the switching member 2.
  • the bearing surfaces S652 are coplanar and extend in a bearing plane P652 perpendicular to the median plane P603 and parallel to the axis Z604.
  • Each fixing portion 652 has a central hole 653 for the passage of a fastener element 7 such as a screw, represented by its axis only at the figure 16 .
  • the holes 653 and the screws 7 thus constitute means for fixing the housing 603 on the support 606.
  • the axis Z604 of the body 604 extends horizontally.
  • the tabs 651 each extend along a geometric axis A651 forming a bend, in a plane perpendicular to the axis Z604.
  • Each tab 651 comprises a proximal portion 650 which is connected to the end of one of the reinforcements 643a or 643b and which extends laterally outward, perpendicularly to the median plane P603, and a distal portion 659 connected to the proximal portion 650 on one side and the attachment portion 652 on the other.
  • the distal portion 659 of each fastener 605a1, 605a2, 605b1 and 605b2 extends perpendicularly to the bearing plane P652.
  • each tab 651, in a plane perpendicular to the axis A651 is generally rectangular and has two small sides having a width l, as well as two large sides having a length L greater than the width l.
  • the width l of each section, along the axis A651, is oriented parallel to the axis Z604 and the length L of each section extends in a plane perpendicular to the axis Z604. These lengths L and l can vary along the leg 651 so as to distribute the mechanical stresses undergone during the deformation.
  • the outer surface S604 of the body 604 of the housing 603 is provided with three studs 644a, 644b and 644c with a circular section, aligned with each other parallel to the Z604 axis and projecting downward towards the support 606.
  • the pads 644a, 644b and 644c are identical but alternatively they may be different.
  • each pad 644a, 644b and 644c is recessed, in particular to reduce the weight of the housing 603, and defines a hollow volume V 644 .
  • Each damping element 609a, 609b and 609c has the shape of a ring whose inside diameter is substantially equal to the outside diameter of the pads 644a, 644b and 644c.
  • the damping elements 609a, 609b and 609c are thus threaded respectively on the pads 644a, 644b and 644c, with a low functional clearance.
  • the base 610 is generally flat, extends generally in the bearing plane P652 and rests flat on the support 606.
  • the base 610 is made from a rigid metal material such as an aluminum alloy.
  • the base 610 comprises a central and longitudinal portion 611, provided with three circular supports 612a, 612b and 612c each comprising a circular side wall 613, perpendicular to the bearing plane P652, and a bottom 614 parallel to the bearing plane P652.
  • the supports 612a, 612b and 612c are aligned with each other parallel to the axis Z604, in front of the pads 644a, 644b and 644c.
  • the inside diameter of the side walls 613 is substantially equal to the outside diameter of the damping elements 609a, 609b and 609c, which are respectively arranged against the bottom 614 of the supports 612a, 612b and 612c, inside the supports 612a, 612b and 612c, with weak functional play.
  • the supports 612a, 612b and 612c may not be aligned with each other parallel to the axis Z604.
  • the base 610 comprises several branches 615 which extend laterally from the central portion 611 and which connect it to four fixing lugs 616a1, 616a2, 616b1 and 616b2, each having a hole 617.
  • branches 615 are delimited between branches 615, which is particularly advantageous for the application areas where the mass must be minimal, such as aerospace.
  • the base 610 is full.
  • the bearing surfaces S652 of the housing 603 rest against the legs 616a1, 616a2, 616b1 and 616b2 of the base 610.
  • Each fastener 7 also passes through one of the holes 617 of the base 610.
  • the holes 617 and fastening elements 7 constitute means for fastening the base 610 to the support 606.
  • the base 610 is interposed between and in contact with the bearing surface S652 of the housing 603 and the support 606.
  • Each damping element 609a, 609b and 609c is locked in downward translation by the bottom 614 of the supports 612a, 612b and 612c, upwardly by the outer lateral surface S604 of the body 604 of the housing 603 and on the sides by the side wall 613 of the supports 612a, 612b and 612c.
  • the geometry of the fasteners 605a1, 605a2, 605b1 and 605b2 is designed to attenuate the transmission of shocks and / or vibrations between the support 606 and the body 604, in particular along the main direction D2, that is to say parallel to the Z604 axis.
  • the tabs 651 thus dissipate the mechanical energy of shocks and / or vibrations by reducing the transmission of this energy to the body 604 of the housing 603. In this way, the risks of accidental switching of the switching member 2 are attenuated.
  • the legs 651 essentially dampen the effects of shocks, but their elasticity tends to generate high vibrational resonances, especially at low frequencies.
  • the damping elements 609a, 609b and 609c provide a viscous and elastic damping, particularly effective for low frequencies of vibration, which attenuates the vibrational resonances generated by the legs 651.
  • the pads 644a, 644b and 644c compress the damping elements. 609a, 609b and 609c against the side walls 613 of the supports 612a, 612b and 612c.
  • the damping elements 609a, 609b and 609c are mechanically stressed mainly in compression, which dissipates the energy generated by the shocks and / or the vibrations, in particular at low frequencies.
  • the tabs 651 and the damping elements 609, 609a and 609c together achieve effective shock absorption and vibration, which effectively reduces the risk of accidental switching of the switching member 2.
  • FIGS. 17 to 22 illustrate support assemblies 708, 808 and 908 which comprise damping elements also made of a flexible and resilient material under the conditions of use of an electromagnetic relay which includes one of these assemblies.
  • the housing 703 of the support assembly 708 shown in FIGS. Figures 17 and 18 is similar to the housing 603.
  • the support assembly 708 comprises four parallelepipedal damping elements 709a1 709b1, 709a2 and 709b2 and a base 710 comprising two separate rigid portions 710a and 710b of similar geometry.
  • the first portion 710a of the base 710 is disposed at the attachment members 705a2 and 705b2 and at the open end 741 of the body 704 of the housing 703, while the second portion 710b of the base 710 is disposed at the fastening elements 705a1 and 705b1, on the closed end 742 side.
  • Each portion 710a and 710b comprises a flat plate 715, extending in the bearing plane P752 and on which the bearing surfaces S752 of the fastening elements 705a1, 705a2, 705b1 and 705b2 rest.
  • Each portion 710a and 710b has two holes 717 for the passage of the fasteners 7.
  • the portion 710a of the base 710 is provided with two uprights 711a2 and 711b2.
  • Part 710b of the base 710 is provided with two other uprights 711a1 and 711b1.
  • the amounts 711a1, 711a2, 711b1 and 711b2 are perpendicular to the plate 715 and each comprise a reinforcing rib 711c for increasing the bending strength of the uprights along the axis Z704.
  • each upright 711a1, 711a2, 711b1 and 711b2 comprises a support 712a1, 712a2, 712b1 or 712b2 hollow, in which is disposed a damping element 709a1, 709a2, 709b1 or 709b2.
  • the depth of the supports 712a1, 712a2, 712b1 and 712b2 is determined so that a portion of each damping element protrudes outside its support.
  • the damping elements 709a1, 709a2, 709b1 or 709b2 are located outside the space delimited by the fastening elements 705a1 and 705b1, on the one hand, and 705a2 and 705b2, on the other hand.
  • the supports 712a1, 712a2, 712b1 or 712b2 are open towards one of the ends 741 or 742 of the housing 703, so that the damping elements 709a1, 709a2, 709b1 and 709b2 each come into contact with the proximal portion 750.
  • the operation of the housing 703 is similar to that of the housing 603, the tabs 705a1, 705a2, 705b1 and 705b2 being designed to deform in bending along the Z704 axis.
  • the damping elements 709a2 and 709b2 supported by the first portion 710a of the base 710 dampen the vibrations of the body 704 of the housing 703, in a first direction of the main direction D2, namely to the right of the figure 17 , while the damping elements 709a1 and 709a2 dampen the vibrations of the body 704 in the other direction of the main direction D2, namely to the left of this figure.
  • the support assembly 808 shown in Figures 19 and 20 comprises a housing 803 which is distinguished from the housing 603 by the presence of two lateral studs 844a and 844b situated in the middle of structural reinforcements 843a and 843b of the body 804 and projecting, relative to the housing 803, perpendicularly to a longitudinal plane P803 of the housing 803.
  • An annular damping element 809a or 809b is threaded onto each of the pads 844a and 844b.
  • the support assembly 808 comprises two rigid bearings 810a and 810b arranged laterally on either side of the body 804 of the casing 803.
  • the bearing 810a extends between the fastening elements 805a1 and 805a2 of the casing 803, while the bearing 810b extends between the fasteners 805b1 and 805b2.
  • Each bearing 810a and 810b comprises a flat plate 815a or 815b, which rests on the attachment portions 852 of the fasteners 805a1 and 805a2 or 805b1 and 805b2 of the housing 803.
  • Each bearing 810a and 810b comprises a vertical wall 811a or 811b which connects the plate 815a or 815b to a support 812a or 812b.
  • the damping elements 809a and 809b are each received in one of the supports 812a and 812b and a part of the damping elements 809a and 809b protrude outside the supports 812a and 812b and comes into contact with the reinforcements 843a and 843b of the housing 803.
  • the plate 815a or 815b of each bearing 810a and 810b has two holes 817 for the passage of the fastening elements 7.
  • the operation of the housing 803 is similar to that of the housing 603, the tabs 805a1, 805a2, 805b1 and 805b2 being designed to deform in bending along the Z804 axis.
  • the damping elements 809a and 809b dampen the vibrations of the body 804 of the housing 803 in the main direction D2 and in both directions.
  • the 908 support set of Figures 21 and 22 is distinguished in particular support assemblies 608, 708 and 808 by the orientation of the axis Z904 of the housing 904 and the main direction D2, which are vertical in use.
  • the housing 903 has four fasteners 905a1, 905a2, 905b1 and 905b2.
  • Fasteners 905a2 and 905b2 are identical to fasteners 605a2 and 605b2 of housing 603.
  • Fasteners 905a1 and 905b1 each have a connecting portion 951 that is relatively short and solid, relative to fasteners 905a2 and 905b2, and a fixing portion 952 which comprises two opposed bearing surfaces S952 and S'952 perpendicular to the axis Z904.
  • the housing 903 is fixed on a support 906 which comprises a horizontal wall 961 and a vertical wall 962 perpendicular.
  • the tabs 905a2 and 905b2 of the housing 903 bear against the vertical wall 962.
  • Fixing elements 7, such as screws, are used to fix these tabs 905a2 and 905b2 to the support 906.
  • the tabs 905a1 and 905b1 are each fixed to the horizontal wall 961 of the support 906 by means of a damping or silent-block assembly 910a or 910b, which comprises two damping elements 909a1 and 909'a1 or 909b1 and 909'b1 of annular shape, and a rigid support formed, on the one hand, by a first tubular part 910a1 or 910b1, one end of which is extended by a collar, and, on the other hand, by a washer 910'a1 or 910'b1 which abuts against the end of the tubular piece 10a1 or 910b1 opposite the flange.
  • a damping or silent-block assembly 910a or 910b which comprises two damping elements 909a1 and 909'a1 or 909b1 and 909'b1 of annular shape, and a rigid support formed, on the one hand, by a first tubular part 910a1 or 910b1, one end of which is extended by a collar
  • the fasteners 7 pass through the parts 910a1, 910'a1, 910b1 and 910'b1, at through holes 953 of the fastening elements 905a1 and 905b1 and through holes 917 made in the support 906.
  • each silent-block 910a and 910b are arranged on either side, in the main direction D2, of the fixing portion 952 of the fastening elements 905a1 and 905b1.
  • Each damping element 909a1, 909'a1, 909b1 and 909'b1 has a peripheral groove 991 which, when the two damping elements are stacked, form a slot within which the periphery of the hole 953 extends. of the fixing part 952.
  • damping elements 909a1 and 909'a1 on the one hand, and 909b1 and 909'b1 on the other hand, are locked between the flange of the first part 910a1 or 910b1 and the washer 910'a1 or 910'b1 of the silent blocks 910a and 910b.
  • the operation of the housing 903 is similar to that of the housing 3, the tabs 905a2 and 905b2 being designed to deform in bending along the Z904 axis.
  • the damping elements 909a1, 909'a1, 909b1 and 909'b1 damp the vibrations along the main direction D2 in one direction and the other.
  • the fastening elements are not distributed symmetrically with respect to the longitudinal median plane P603.
  • the housing may have only three fasteners, one of which is on one side of the plane P603 and the other two on the other side.
  • the housings 3, 103, 203, 303, 403, 503, 603, 703, 803 and 903 are monolithic, that is to say formed in one piece.
  • the housings can be manufactured for example by machining a block of material. No additional parts are required to achieve shock and vibration damping, which simplifies manufacturing, increases reliability and lasts.
  • the housings 3, 103, 203, 303, 403, 503, 603, 703, 803 and 903 are made from an aluminum alloy having satisfactory mechanical characteristics.
  • the housings can be made of a titanium alloy, beryllium copper (CuBe 2 ) or with steel.
  • the material chosen may incorporate carbon fibers.
  • the body 4, the tabs 51 and / or the fixing portions 52 are made from separate parts which are then assembled together, for example by gluing, welding or screwing.
  • the body 4 is a cylinder having any section, for example prismatic.
  • the body 4 may also not be cylindrical.
  • the moving parts of the switching member 2 move in a main direction which is not parallel to the longitudinal axis Z4 of the body 4 of the housing 3, for example a direction perpendicular to the longitudinal axis Z4.
  • the tabs 51 are designed to deform in bending in the direction of movement of the moving parts.
  • the tabs 51 then have a low rigidity in this direction of displacement and a greater rigidity in a direction perpendicular to the direction of travel.
  • the cross section of the tabs 51 is not rectangular and has a section having a geometry designed to bend deformation at least in the main direction D2, such as an elongate section.
  • the fastening elements of the housings 203, 303, 403 and 503 are not angularly distributed uniformly over the circumference of the housing.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Vibration Prevention Devices (AREA)
  • Casings For Electric Apparatus (AREA)
EP13156962.6A 2012-02-28 2013-02-27 Boîtier de relais électromécanique, relais, ensemble de commutation et ensemble de support de relais électromagnétique Active EP2634784B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1251805A FR2987492B1 (fr) 2012-02-28 2012-02-28 Boitier de relais electromecanique, relais et ensemble de commutation
FR1260295A FR2997547B1 (fr) 2012-10-29 2012-10-29 Ensemble de support de relais electromagnetique et relais electromagnetique comprenant un tel ensemble de support

Publications (2)

Publication Number Publication Date
EP2634784A1 EP2634784A1 (fr) 2013-09-04
EP2634784B1 true EP2634784B1 (fr) 2015-09-09

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EP13156962.6A Active EP2634784B1 (fr) 2012-02-28 2013-02-27 Boîtier de relais électromécanique, relais, ensemble de commutation et ensemble de support de relais électromagnétique

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US (1) US8653922B2 (zh)
EP (1) EP2634784B1 (zh)
CN (1) CN103295841B (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2434519A1 (en) * 2010-09-27 2012-03-28 ABB Technology AG Magnetic actuator with two-piece side plates for a circuit breaker
USD787918S1 (en) * 2016-10-12 2017-05-30 Mario Rago Relay holder
CN114496658A (zh) * 2022-03-17 2022-05-13 中创新航科技股份有限公司 继电器、电池配电盒及电池包

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741838C (de) * 1937-03-09 1943-11-18 Philips Patentverwaltung Anordnung eines Aggregates mit schwingenden Kontaktzungen zur Umformung von Gleich- oder Wechselstrom, bei dem zur Vermeidung von stoerender Geraeuschabstrahlung Daempfungsmittel vorgesehen sind
US2268882A (en) * 1940-08-03 1942-01-06 Barber Colman Co Relay
US2609171A (en) * 1948-09-01 1952-09-02 Bell Telephone Labor Inc Shock mount for relays
US3800251A (en) * 1970-08-31 1974-03-26 Matsushita Electric Works Ltd Small electro-magnetic contactor
US3863881A (en) * 1973-09-10 1975-02-04 Nasa Shock absorbing mount for electrical components
US4382587A (en) * 1980-03-20 1983-05-10 Kaco Gmbh & Co. Vibration damping element
CN2377670Y (zh) * 1999-03-31 2000-05-10 周德良 改良的继电器连接座
JP2003152286A (ja) * 2001-11-12 2003-05-23 Yazaki Corp 実装基板の静音構造
JP4669267B2 (ja) 2004-11-26 2011-04-13 大塚ポリテック株式会社 電磁リレーの取付構造
JP2007305468A (ja) * 2006-05-12 2007-11-22 Omron Corp 電磁継電器
CN201127115Y (zh) * 2007-12-10 2008-10-01 陈奚平 振动传感器

Also Published As

Publication number Publication date
EP2634784A1 (fr) 2013-09-04
CN103295841A (zh) 2013-09-11
US8653922B2 (en) 2014-02-18
US20130222085A1 (en) 2013-08-29
CN103295841B (zh) 2017-09-08

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