EP4254454A1 - Gehäuse mit metallschuh - Google Patents

Gehäuse mit metallschuh Download PDF

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Publication number
EP4254454A1
EP4254454A1 EP23163816.4A EP23163816A EP4254454A1 EP 4254454 A1 EP4254454 A1 EP 4254454A1 EP 23163816 A EP23163816 A EP 23163816A EP 4254454 A1 EP4254454 A1 EP 4254454A1
Authority
EP
European Patent Office
Prior art keywords
cover
face
groove
terminal
box
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.)
Granted
Application number
EP23163816.4A
Other languages
English (en)
French (fr)
Other versions
EP4254454B1 (de
Inventor
Ludovic Niguet
Dorian LAUGT
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.)
Thales Avionics SAS
Original Assignee
Crouzet SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Crouzet SA filed Critical Crouzet SA
Publication of EP4254454A1 publication Critical patent/EP4254454A1/de
Application granted granted Critical
Publication of EP4254454B1 publication Critical patent/EP4254454B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/10—Bases; Stationary contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/06—Fixing of contacts to carrier ; Fixing of contacts to insulating carrier
    • H01H2011/062—Fixing of contacts to carrier ; Fixing of contacts to insulating carrier by inserting only
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0214—Housing or casing lateral walls containing guiding grooves or special mounting facilities
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Definitions

  • the invention relates to a housing comprising a metal lug.
  • the cross section of the lug is rectangular.
  • the housing has a groove whose width is less than the thickness of the terminal and the terminal is force-fitted inside this groove .
  • the lower edge of the metal terminal has two ridges which rub against the plastic side walls of the groove during force-fitting.
  • EP0344800A2 discloses such a known housing.
  • the ridges on the lower edge of the terminal tear off plastic chips when they rub against the side walls during press-fit. These plastic shavings then pollute the interior of the case and can cause a malfunction of an electrical circuit housed inside this case.
  • the subject of the invention is therefore a housing according to claim 1.
  • THE figures 1 and 3 represent a housing 2 comprising a box 4 and a cover 6.
  • the housing 2 is a housing whose protection index is higher or equal to IP52 and, preferably, greater than or equal to IP54.
  • box 2 has a protection index equal to IP68.
  • the electrical circuit housed inside the housing 2 is an electrical circuit of a switch actuated by an actuation member projecting from an exterior face of the housing 2.
  • this member The action is not shown in the figures.
  • the actuation member is for example a key movable between a protruding position and a depressed position.
  • the switch has a normally open state and a normally closed state.
  • the depression of the actuation member makes it possible to switch these states, respectively, to a closed state and an open state.
  • This electrical circuit is electrically connected to electrical components located outside the housing 2 to transmit to them the states resulting from the movement of the actuation member.
  • the electrical circuit is connected to these external electrical components via electrical wires.
  • the electrical circuit comprises, in this example, three metal lugs 10, 12 and 14. Each of these lugs is intended to be electrically connected to the end of a respective electric wire. These terminals 10, 12 and 14 correspond to the three terminals necessary to transmit the two simultaneous states of the switch.
  • the lugs 10, 12 and 14 are entirely received inside the box 4.
  • the electrical connection wires pass through a hole 16 made in an exterior partition of the box 4 so that their ends can be electrically connected to the lugs 10, 12 and 14.
  • the seal between the box 4 and these electrical wires is, for example, ensured by implementing a resining process better known by the English term "potting".
  • Box 4 is an essentially parallelepiped box. It comprises a lower horizontal partition 20 surrounded by vertical partitions. These vertical partitions are collectively designated by the numerical reference 22.
  • the vertical partitions 22 delimit a hollow inside which the lugs 10, 12 and 14 are received.
  • the box 4 does not have a partition vertical front. This space is also blocked by the resining process implemented to ensure the seal between the wires and the hole 16.
  • THE figures 1 to 6 are oriented relative to an orthogonal coordinate system XYZ, where the X and Y directions are horizontal and the Z direction corresponds to the vertical direction. Subsequently, terms such as “upper” and “lower” are defined with respect to the Z direction. Terms such as “forward” and “backward” are defined with respect to the Y direction.
  • the upper ends of the vertical partitions 22 delimit the perimeter of an orifice 24 which allows access to the interior of the box 4.
  • the orifice 24 makes it possible in particular to introduce into the interior of the box 4 all the parts of the electrical circuit and therefore, in particular, lugs 10, 12 and 14.
  • the box 4 is here made entirely of plastic, for example, by molding.
  • plastic also designates loaded plastics such as for example a plastic material comprising glass fibers.
  • the box 4 is made of an electrically insulating material that is less hard than the metal lugs 10, 12 and 14.
  • An electrically insulating material is here a material whose electrical conductivity, at 20°C, is less than 10 -9 S /m and, preferably, less than 10 -15 S/m.
  • less hard than the metal lugs we mean a material which is two or three or ten times less hard than the metal lugs 10, 12 and 14.
  • the cover 6 is movable between an open position, shown on the figures 1 and 3 , and a closed position. In the open position, the cover 6 does not obstruct the orifice 24 and allows access to the interior of the box 4. Thus, in the open position, the lugs 10, 12 and 14 can be introduced inside of the box 4. In the closed position, the cover 6 completely closes the orifice 24 so that it is no longer possible to access, from the outside, the different parts of the electrical circuit. Here, in the closed position, the cover 6 closes the orifice 24 in a watertight and dust-tight manner.
  • a seal 28 is used to ensure the seal between the cover 6 and the box 4 when the cover 6 is in its closed position.
  • this seal 28 is integral with an interior face 30 of the cover 6, that is to say the face of the cover 6 facing the inside of the housing 2 when the cover 6 is in its closed position.
  • the cover 6 is made entirely of plastic, for example, by molding.
  • the cover 6 is made from the same plastic as that used to make the box 4.
  • the housing 2 also includes a system for locking the cover 6 in its closed position.
  • This locking system makes it possible to firmly hold the cover 6 in its closed position.
  • this system makes it possible to maintain the cover 6 in its closed position against a force of 10 N or 50 N which pulls the cover 6 upwards while the box 4 is, at the same time, immobilized between the jaws of a vice or similar.
  • the locking system is a weld made between the cover 6 and the box 4 or a bead of glue interposed between the cover 6 and the box 4.
  • the mechanism 34 also includes here, in addition to the pin 36 and the hole 38, other asperities and other recesses made in the box 4 and the cover 6 to center and guide, by shape cooperation, the cover 6 on the box 4.
  • asperities made in the cover 6 bear the numerical references 40 and 42 on the figure 2 and the corresponding recesses, made in the box 4, bear the numerical references 44 and 46 ( figure 1 ).
  • the lugs 10, 12 and 14 are each in the form of a metal blade which extends mainly in a horizontal plane.
  • the lugs 10, 12 and 14 are curved in several places so that, in a horizontal plane, they each extend along a respective horizontal path which is not just a straight line.
  • this trajectory still includes a rectilinear part.
  • the length of lugs 10, 12 and 14, that is to say the length of the trajectory along which they extend in a horizontal plane, is generally greater than 10 mm or 15 mm.
  • the side faces 50 and 52 are parallel and flat.
  • the side face 50 extends from a lower edge 58 to an upper edge 60.
  • the side face 52 extends from a lower edge 62 to an upper edge 64.
  • the lower edge 54 extends horizontally from edge 58 to edge 62.
  • the upper edge 56 extends horizontally from edge 60 to edge 64.
  • edges 58, 60, 62 and 64 are sharp edges each capable of removing material chips when they rub against a wall of the box 4.
  • the angle between the lower edge 54 and the side faces 50 and 52 is between 87° and 93° and, most often, between 89° and 91°.
  • the height h 10 of the lug 10 is the vertical distance which separates the edges 58 and 60.
  • the thickness e 10 of the lug 10 is the horizontal distance which separates the edges 58 and 62.
  • the lug 10 also generally includes one or more recesses which pass through its entire thickness. Such a recess was not shown on the Figure 6 .
  • lugs 12 and 14 are similar or identical to that of lug 10.
  • the lugs 10, 12 and 14 are fixed, without any degree of freedom, inside the box 4 using respective fixing devices. These fixing devices are similar or identical to each other. Thus, subsequently, only the device 70 ( Figures 3 to 5 ) for fixing the lug 10 is described in detail. The fixing devices for the lugs 12 and 14 can be deduced from the teaching given in the particular case of this fixing device 70.
  • the device 70 includes a groove 72 ( figures 4 and 5 ) made in box 4 and a corner 74 ( Figures 2 and 3 ) made in the cover 6.
  • Walls 80 and 82 are formed in the same block of material as the other parts of the box 4. For example, they are manufactured by molding at the same time as the other parts of the box 4. Thus, these walls 80 and 82 are made of plastic.
  • the bottom 86 is made in the lower partition 20 of the box 4.
  • the wall 80 extends vertically from the bottom 86 to an upper lip 90 ( Figure 5 ).
  • the face of the wall 80 turned towards the wall 82, forms a support face 92.
  • the support face 92 is shaped to completely match the lateral face 50 of the lug 10. Here, the face 92 is therefore flat.
  • the wall 80 is a fixed wall, that is to say it does not move and is practically not deformed when the terminal 10 is introduced inside the groove 72 and when the cover 6 is moved towards its closed position.
  • the wall 80 is rigid.
  • the thickness, in the X direction, of the wall 80 is significant, that is to say two or three or five times greater than the thickness of the wall 82 .
  • the cutting plan of the Figure 5 is parallel to the directions X and Z and passes through the support face 96. Thus, on this Figure 5 only the end of the arm 100 forming the support face 96 is visible.
  • the support face 96 extends vertically from the bottom 86 to an upper lip 94.
  • the support face 96 is shaped to completely match the side face 52 when the lug 10 is fixed without any degree of freedom in the box 4.
  • the elongated opening 84 is delimited, on one side, by the lip 90 and, on the opposite side, by the lip 94.
  • the opening 84 faces towards the orifice 24, that is to say upwards. .
  • the terminal 10 can be introduced inside the groove 72 by moving the terminal 10 through the orifice 24.
  • the width l 84 of the opening 84 is equal to the horizontal distance which separates the orthogonal projection of the lips 90 and 94 on a horizontal plane.
  • groove 72 The vertical ends of groove 72 are open. Thus, the groove 72 can receive a rectilinear portion of the lug 10 which is longer than the length of the groove 72. Thus, the lug 10 protrudes at each end of the groove 72.
  • the face 96 includes a lower portion 96i ( Figure 5 ) extended by a higher portion 96s.
  • the lower portion 96i is parallel to the support face 92. It therefore extends in a vertical plane.
  • the horizontal distance between the lower portion 96i and the supporting face 92 opposite is less than the thickness e 10 . Thanks to this, the lower edge 54 of the lug 10 can be force-fitted into the lower part of the groove 72.
  • the difference ⁇ between the thickness e 10 and the horizontal distance between the portion lower 96i and the support face 92 is between 0.7 mm and 0.1 mm.
  • the height h 96i of the lower portion 96i is small compared to the height h 10 of the lug 10.
  • the height h 96i is less than h 10 /2 and, preferably, less than h 10 /3 or h 10 /5 or h 10 /10.
  • the height h 96i is less than 5 mm or 3 mm or 1 mm.
  • the height h 96i is also greater than 0.5 mm or 1 mm.
  • the material shavings here are plastic shavings, torn from the walls 80 and 82 by the friction of the edges 58 and 62 on the bearing faces 92, 96 and 97.
  • the upper portion 96s of the bearing face 96 extends, from the upper limit of the portion 96i, to the lip 94.
  • the portion 96s extends in a plane inclined relative to the vertical plane in which the portion 96i extends.
  • the width l 84 of the opening 84 is greater than the thickness e 10 of the lug 10.
  • the difference between the width l 84 and the thickness e 10 is greater than 0.5 mm or greater than 1 mm.
  • this gap is also less than 8mm or 5mm.
  • the angle between the plane in which the upper portion 96s extends and the plane in which the lower portion 96i extends is here less than 20° and, preferably, less than 15° or 10°.
  • the height of the orthogonal projection of the upper portion 96s in the vertical plane containing the portion 96i is greater than or equal to h 10 /2 or 2 xh 10 /3.
  • the lower edge 54 does not rub or rubs much less strongly on the upper portion 96s and on the portion opposite. -screw of face 92. The formation of material chips is therefore reduced.
  • wall 82 is a flexible wall movable between an inclined position, shown on the figures 3 to 5 , and a tight position.
  • the inclined position is the rest position, that is to say the position occupied by the wall 82 in the absence of external mechanical stress and, in particular, in the absence of the cover 6.
  • the inclined position corresponds to the position shown on the Figure 5 and previously described.
  • the upper portion 96s of the wall 82 is directly and entirely pressed against the side face 52 of the lug 10 inserted into the groove 72.
  • the upper portion 96s also extends in a plane vertical.
  • the bearing face 96 is therefore directly and entirely pressed against the side face 52 of the lug 10 in the tightened position.
  • the support faces 92 and 96 surround the lateral faces 50 and 52 of the lug 10. Therefore, in the tightened position, the lug 10 is retained inside the box 4 as firmly as with a fixing device in which, in the rest position, the part 96s of the support face 96 is vertical.
  • the wall 82 On the side opposite the support face 96, the wall 82 includes the rear face 98.
  • the rear face 98 is located at the level of the plane of symmetry and extends mainly in the Z direction.
  • the arm 100 extends from the rear face 98 to the support face 96.
  • the arm 100 also delimits the hollow space 104.
  • the hollow space 104 is arranged between the two arms 100 and 102. It is shaped to allow the arms 100 and 102 to absorb, by elastic deformation, an excess of thrust force applied to the rear face 98. More precisely, when the thrust force is exerted on the rear face 98, the arm 100 first moves the support face 96 to the position where it is pressed against the side face 52 of the pod. At this stage, if the thrust force continues to increase, and therefore an excess of thrust force is applied to the rear face 98, the arm 100 deforms to absorb this excess thrust force and store it in the form of potential energy in the arm 100. For example, here, the arm 100 is elastically deformed so as to reduce the volume of the hollow space 104.
  • This excess thrust force stored in the arm 100 in the form of potential energy makes it possible to maintain the upper portion 96s pressed against the side face 52 even if the thrust force decreases due to a parasitic phenomenon such as thermal expansion. In this case, this potential energy stored in the arm 100 is first released before reducing the support force of the upper portion 96s on the side face 52.
  • This flexibility also makes it possible to absorb the dimensional variation of the components such as the thickness e 10 of the lug or the dimensions of the groove 72 involved in the tightening.
  • the arm 100 extends from the rear face 98 to the support face 96 following an arcuate trajectory.
  • the height of the hollow space 104 is equal to the height of the wall 82 in the Z direction.
  • the hollow space 104 also opens between the support faces 96 and 97.
  • the space hollow 104 is here a half-cylinder.
  • the thickness e 82 of the wall 82 is sufficiently small to allow the movement of the wall 82, by elastic deformation, between its inclined and tightened positions.
  • the thickness e 82 is less than 5 mm or 3 mm and, generally, greater than 1 mm.
  • the corner 74 makes it possible to move the wall 82 from its inclined position to its tightened position when the cover 6 is moved from its open position to its closed position.
  • the corner 74 has an inclined face 110 ( Figure 3 ) Who comes to push the rear face 98 of the wall 82 when the cover 6 descends vertically inside the box 4.
  • the centering mechanism 34 which guides the cover 6 in vertical translation when it is moved from its position open to its closed position.
  • the face 110 is inclined so that the more it sinks inside the box 4, the more the horizontal force it exerts on the rear face 98 increases.
  • the horizontal force exerted by the face 110 on the rear face 98 is greater, and preferably several times greater, than the minimum horizontal force necessary to move the wall 82 from the inclined position to the tightened position.
  • the face 110 is shaped to apply an excess of thrust force to the rear face 98 when the cover 6 is in its closed position.
  • the cover 6 is in its open position and the wall 82 is in its inclined position.
  • the lug 10 is then introduced into the groove 72 via the orifice 24 then its lower edge 54 is force-fitted between the bearing face 92 and the lower portion 96i of the bearing face 96. This fitting force can produce some chips of material but generally these chips remain stuck between the lower edge 54 and the bottom 86 of the groove 72.
  • the terminal 10 is held in place inside the groove 72 by friction against the bearing face 92 and the lower portion 96i of the bearing face 96.
  • the cover 6 is then moved from its open position to its closed position. This movement is guided in translation by the centering mechanism 34. As the cover 6 advances towards the orifice 24, the corner 74 sinks inside the box 4. The face 110 then comes to rest against the rear face 98 and, as the corner 74 continues to sink inside the box 4, the face 110 moves the wall 82 towards its tightened position.
  • the wall 82 reaches its tightened position. From then on, the terminal 10 is firmly clamped over the majority of its height between the walls 80 and 82. The terminal 10 is then fixed without any degree of freedom inside the box 4.
  • the locking system then locks the cover 6 in its closed position.
  • the wall 82 is then held in its tightened position as long as the cover 6 is in its closed position.
  • the resining process is carried out once the cover 6 is in its closed position. Furthermore, here, this resining is carried out in such a way that the resin, as it hardens, freezes the wall 82 in its tightened position. Indeed, plastic under stress is subject to relaxation over time. The spring effect of the arms 100 and 102 could thus decrease over time. In this embodiment, the addition of the resin seals all the components in position, without risk of alteration over time.
  • the fixed wall 80 is replaced by a second flexible wall symmetrical to the flexible wall 82 with respect to a vertical plane parallel to the directions Y and Z.
  • the cover 6 includes an additional corner to move this second flexible wall from its inclined position towards its tightened position when the cover 6 is moved towards its closed position.
  • the lower part 96i of the support face 96 is omitted.
  • the upper part 96s extends to the bottom 86.
  • the width of the groove 72 at the bottom 86 may be greater than the thickness e 10 of the terminal. In this case, the terminal cannot be force-fitted into the bottom of the groove.
  • the flexible wall 82 can have other shapes which make it possible to reach the same result as that described in chapter I.
  • the arcuate trajectory followed by the arm 100 is replaced by a rectilinear trajectory or by a succession of rectilinear segments placed end to end.
  • the arms 100 and 102 are not shaped to store, in the form of potential energy, an excess of thrust force.
  • hollow space 104 is omitted.
  • the support faces 96 and 97 meet and form only one and the same support face.
  • the wall 82 is rectilinear and extends parallel to the Y direction.
  • the wall 82 is not fixed in its tightened position, for example, by the use of a hardening resin. In this case, the wall 82 can return to its inclined position when the cover is moved to its open position. The terminal can thus easily be dismantled and replaced.
  • the corner 74 is attached to the interior face 30 of the cover 6 and does not form a single block of material with the upper partition of the cover 6.
  • the walls 80, 82 are attached to the partition 20 and do not form a single block of material with this partition;
  • the cross section of the lug 10 is not rectangular.
  • the cross section of lug 10 is trapezoidal, the small base of this trapezoidal section forming the lower edge of the lug.
  • the ends of the metal lugs intended to be electrically connected to the electrical wires protrude beyond the exterior partitions of the housing 2.
  • the electrical connection between a lug and an electric wire is located at the exterior of housing 2.
  • each lug has an end which projects beyond the external partitions of the housing, this end being pluggable into the printed circuit or solderable on the printed circuit.
  • the box can be made differently.
  • certain parts of the box, different from the walls 80 and 82, are made of a material other than plastic.
  • the cover can be made of a material other than plastic.
  • the box can also have a vertical front wall instead of an orifice blocked by a resining process.
  • Case 2 is not necessarily a waterproof case.
  • cover locking system 6 is possible.
  • the locking system is produced using screws which allow the cover 6 to be screwed onto the upper part of the box 4. It can also be produced using rivets or any other known technology .
  • the pin 36 and the hole 38 can be replaced, respectively, by an asperity and a recess which have other shapes.
  • the pin 36 can also be made in the box 4 and the hole 38 in the cover 6.
  • the centering mechanism 34 is independent of the housing.
  • a centering mechanism external to the housing 2, is used during the manufacture of the housing 2.
  • Such an external centering mechanism may include rails for guiding the cover 6 in vertical translation from its open position to its position closed. Then, once the cover 6 is locked in its closed position by the locking system, this external centering mechanism is removed and the housing 2 is distributed without this external centering mechanism.
  • the centering mechanism is omitted and it is the operator's hand which ensures the centering of the cover 6 on the box 4 as long as the locking system does not, by itself, hold the cover 6 in its closed position.
  • the electrical circuit housed in the housing is an electrical circuit of a switch applies to any type of electrical circuit comprising metal lugs to electrically connect it to other electrical components located outside the box 2.
  • the circuit electrical can be an electrical circuit for controlling an external device, an electrical circuit for measuring a physical quantity or any other electrical circuit.
  • the width of the opening 84 is greater than the thickness of the lug 10 limits the friction of this lug on the side walls 80, 82 during its insertion into the groove 72. Because of this, the quantity of material shavings produced when the terminal is inserted into the groove 72 is reduced. Then, once the cover 6 is moved into its closed position, the surface of the support face 96 directly in mechanical contact with the side face 52 is identical to the surface of the support face of a fixing device of the state of the art.
  • the fixing device 70 makes it possible to retain the lug 10 as firmly inside the box 4 as the known fixing devices while limiting, in addition, the quantity of material shavings produced during the introduction of the lug in groove 72.
  • Face 92 can be considered as a reference face. The principle of clamping the terminal against this face guarantees the precision and repeatability of the mechanical functions of the product.
  • the wall 82 fills any space between the terminal and the groove 72. Thus, there is no risk of migration of resin or other materials inside the product.
  • the width of the groove 72 is less than the thickness of the lug at the level of the bottom 86 of this groove makes it possible to press the lower edge 54 of the lug into the groove. Thanks to this, the terminal is held in place even before the cover 6 is closed. Thus, the assembly of the terminal inside the housing 2 is facilitated because the terminal does not risk moving between the moment when it is introduced inside the groove 72 and the moment when the cover 6 is closed. In addition, this force-fit produces few material chips because only the lower edge 54 of the terminal is force-fit.
  • the presence of the hollow space 104 makes it possible to obtain a spring effect which makes it possible to maintain the portion 96s of the bearing face 96 correctly pressed against the terminal 10 even if the thrust force exerted by the corner 74 in the closed position varied slightly. For example, due to expansion phenomena, the thrust force exerted by the corner 74 on the rear face 98 can vary when the temperature varies.
  • one of the walls is a fixed wall simplifies the production of the cover 6 because it is not necessary to provide a corner in this cover to move this fixed wall.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Casings For Electric Apparatus (AREA)
EP23163816.4A 2022-03-30 2023-03-23 Gehäuse mit metallschuh Active EP4254454B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2202866A FR3134248B1 (fr) 2022-03-30 2022-03-30 Boitier comportant une cosse metallique

Publications (2)

Publication Number Publication Date
EP4254454A1 true EP4254454A1 (de) 2023-10-04
EP4254454B1 EP4254454B1 (de) 2024-06-12

Family

ID=82385274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23163816.4A Active EP4254454B1 (de) 2022-03-30 2023-03-23 Gehäuse mit metallschuh

Country Status (2)

Country Link
EP (1) EP4254454B1 (de)
FR (1) FR3134248B1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0344800A2 (de) 1988-06-03 1989-12-06 OMRON Corporation Mikroschalter
US20070267284A1 (en) 2006-05-18 2007-11-22 Lai Cheng-Tsai Micro switch
US20190066945A1 (en) 2017-08-28 2019-02-28 CoActive Technologies, LLC Surface mount snap switch
EP3975216A1 (de) 2020-09-24 2022-03-30 Crouzet Teilesatz zur herstellung eines schalters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0344800A2 (de) 1988-06-03 1989-12-06 OMRON Corporation Mikroschalter
US20070267284A1 (en) 2006-05-18 2007-11-22 Lai Cheng-Tsai Micro switch
US20190066945A1 (en) 2017-08-28 2019-02-28 CoActive Technologies, LLC Surface mount snap switch
EP3975216A1 (de) 2020-09-24 2022-03-30 Crouzet Teilesatz zur herstellung eines schalters

Also Published As

Publication number Publication date
EP4254454B1 (de) 2024-06-12
FR3134248A1 (fr) 2023-10-06
FR3134248B1 (fr) 2024-03-01

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