WO2023209147A1 - Device for positioning a frame of an electrical cabinet and associated electrical cabinet - Google Patents

Device for positioning a frame of an electrical cabinet and associated electrical cabinet Download PDF

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Publication number
WO2023209147A1
WO2023209147A1 PCT/EP2023/061234 EP2023061234W WO2023209147A1 WO 2023209147 A1 WO2023209147 A1 WO 2023209147A1 EP 2023061234 W EP2023061234 W EP 2023061234W WO 2023209147 A1 WO2023209147 A1 WO 2023209147A1
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WO
WIPO (PCT)
Prior art keywords
chassis
frame
plate
positioning device
stop
Prior art date
Application number
PCT/EP2023/061234
Other languages
French (fr)
Inventor
Thibault WILLMANN
Original Assignee
Schneider Electric Industries Sas
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 Schneider Electric Industries Sas filed Critical Schneider Electric Industries Sas
Publication of WO2023209147A1 publication Critical patent/WO2023209147A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/32—Mounting of devices therein
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/301—Cabinet-type casings; Parts thereof or accessories therefor mainly consisting of a frame onto which plates are mounted

Definitions

  • TITLE Device for positioning an electrical cabinet frame, and associated electrical cabinet
  • the present invention relates to a device for positioning an electrical cabinet frame, as well as an electrical cabinet comprising such a positioning device.
  • the frame is made up of an assembly of fittings and corner connectors.
  • the frame has a parallelepiped shape, with a low frame, which comprises four low fittings assembled with four corner connectors, forming a rectangle and which is intended to be placed on the ground, a high frame, which is formed of four high fittings assembled with four corner connectors, forming a rectangle and which is arranged opposite and at a distance from the low frame.
  • Each corner connector of the upper frame is connected, by a respective upright, to a respective corner connector of the lower frame.
  • One front of the cabinet is generally equipped with a door hinged on the frame.
  • the panels are generally metal sheets.
  • Some electrical appliances received in the internal volume of the electrical cabinet especially heavy electrical appliances such as transformers, etc., are mounted on a metal plate called a chassis, which is arranged vertically in the internal volume and fixed to the frame.
  • a metal plate called a chassis
  • One face of the frame called the mounting face, is oriented towards the front face of the cabinet, so that the electrical devices fixed on the mounting face are visible when the door of the electrical cabinet is open.
  • the chassis As an illustration, depending on the dimensions of the chassis, the latter has a mass of several tens of kilograms, ranging for example from 40 kg to 80 kg. Once the various pieces of equipment are mounted on the chassis, all of the equipment has a total load of up to several hundred kilograms, for example from 400 kg to 600 kg.
  • the chassis is therefore a heavy part, whose assembly to the frame is an operation requiring attention to prevent accidents.
  • a known way of fixing the frame to the frame of an electrical cabinet consists of positioning a bottom edge of the frame relative to the bottom frame up to a predetermined position, identified for example by bottom stops previously positioned along fixed slides to the low frame. Brackets are also previously fixed to the high frame and form upper stops, which are vertically aligned with the lower stops. A top edge of the frame, opposite the bottom edge, is then placed against the high stops. The chassis then finds itself in a vertical position. The chassis is finally secured to the high frame by screwing the chassis to the upper stops, and possibly to the lower stops, in particular depending on the total load planned to be supported by the chassis. As long as the chassis is not secured to the high frame, there remains a risk of the chassis tipping over. One person must therefore permanently hold the chassis facing the upper stops while another person screws the chassis to the upper stops.
  • the invention aims to remedy in particular, by proposing a chassis positioning device which allows easy and secure assembly of the electrical cabinet chassis.
  • the invention relates to a device for positioning an electrical cabinet frame relative to a frame of the electrical cabinet, this positioning device comprising a bracket which comprises: a fastening portion, configured to be fixed along a fitting of a top frame of the frame along an adjustment axis, and a stopping portion, arranged orthogonally to the adjustment axis and configured to limit movements of the chassis in a rearward direction, parallel to the adjustment axis, when the chassis is in a mounting position, facing the stopping portion.
  • the positioning device comprises an anti-return member, which is carried by the bracket and which is configured to:
  • the anti-return member ensures that the chassis is held opposite this stopping portion, avoiding the risk of the chassis tilting. It is no longer necessary for one person to hold the frame in position while another person secures the frame to the frame. Only one person is needed to assemble the chassis to the frame, which is economical.
  • the anti-return device is implemented automatically, which is particularly practical. According to advantageous but not obligatory aspects of the invention, such a positioning device can incorporate one or more of the following characteristics taken in isolation or in any technically admissible combination:
  • the anti-return member comprises a plate mounted to tilt relative to the bracket, the plate being movable, in an unlocking movement, between:
  • a stop position in which the plate is arranged facing the stop portion and at a distance from the stop portion, the plate in the stop position being configured to limit the movements of the chassis in the forward direction when the chassis is in the mounting position
  • the plate tends to move from its raised position to its stop position by gravity.
  • the positioning device comprises a return member, which tends to push the plate from its raised position towards its stop position.
  • the attachment portion extends along a medium plane and is configured to be fixed to the high frame by means of fixing members, for example screws, while the plate comprises a fixing part, which is assembled to the portion attachment so that the unlocking movement is a rotational movement of the plate relative to the fixing portion, around an unlocking axis orthogonal to the mean plane, and that the fixing part comprises a support zone, configured to come to bear on the fixing members when the plate is in the locking position.
  • the plate comprises a stop part, which is arranged so as to limit the movements of the chassis in the forward direction when the chassis is in the mounting position, while the stop part is supported against the bracket when the plate is in position. raised position.
  • Figure 1 is a perspective of an electrical cabinet according to the invention, comprising a frame held in a mounting position by means of a positioning device, also according to the invention;
  • Figure 2 represents respectively, on two inserts a) and b), a larger scale view of frame II in Figure 1 and an exploded perspective of the positioning device of Figure 1, and
  • Figure 3 represents, on three inserts a), b) and c), three successive stages of an assembly sequence of the electrical cabinet of Figure 1, observed according to arrow III in Figure 2 .
  • the electrical cabinet 10 comprises an armature 20, which has a generally parallelepiped shape and which delimits an internal volume V20 of the electrical cabinet.
  • the electrical cabinet 10 thus comprises a low face 12, which rests on a floor 11, a high face 14, which is parallel to the low face 12, and four side faces 16.
  • the low faces 12, high faces 14 and sides 16 of the electrical cabinet 10 are also the bottom 12, top 14 and side 16 faces of the frame 20.
  • the floor 11 is assumed to be horizontal, the electrical cabinet 10 being shown in a normal use position.
  • an axis of height Z10 which is orthogonal to the ground 1 1, or here vertical.
  • a depth axis X10 and a transverse axis Y10 which are arranged so that the three axes of depth X10, transverse Y10 and height Z10 together form a direct reference mark.
  • the depth axis X10 and the transverse axis Y10 are therefore parallel to the ground 1 1 and are here horizontal.
  • the electrical cabinet 10 generally comprises panels, which are fixed to the frame 20 so as to close the faces 12, 14 and 16, in order to physically and electrically separate the electrical devices received in the internal volume V20 from the exterior of the electrical cabinet 10.
  • the panels are not shown.
  • the panels are generally manufactured by folding and/or cutting a metal sheet, typically having a thickness of between 1.5 mm and 2 mm.
  • One of the side faces 16, called the front face 16A is generally closed by a panel mounted on a hinge, so as to form an access door to the internal volume V20.
  • the front face 16A is also a face.
  • the front face 16A is orthogonal to the depth axis X10.
  • a forward direction is defined as being a direction parallel to the depth axis X10 and oriented towards a user standing in front of the front face 16A.
  • a reverse direction is a direction opposite to the forward direction.
  • the front direction is therefore oriented towards the left, while the rear direction is oriented towards the right.
  • the present description is given with reference to the orientation of the various elements of the electrical cabinet 10 in the figures, knowing that these elements can be oriented differently in reality.
  • the frame 20 has a generally symmetrical shape with respect to a sagittal plane S10, which is orthogonal to the transverse axis Y10.
  • the frame 20 comprises a low frame 22, which borders the low face 12, and a high frame 24, which borders the high face 14.
  • the low frame 22 and the high frame 24 are each formed from an assembly of four fittings 26 with four corner connectors 28, so as to form a rectangle.
  • Each corner connector 28 of the lower frame 22 is connected to a respective corner connector 28 of the upper frame 24 by a respective upright 30.
  • the frame 20 therefore comprises four uprights 30, which are parallel to the height axis Z10.
  • the electrical cabinet 10 comprises a frame 40, which is received in the internal volume V20 and which is fixed to the frame 20.
  • the frame 40 is here produced by folding and cutting a metal plate, preferably made of steel, having typically a thickness between 2 mm and 3 mm.
  • the chassis 40 is thus considered rigid and non-deformable.
  • the chassis 40 is configured to receive various electrical devices such as contactors, circuit breakers, transformers, fuse boxes, etc., depending on the use for which the electrical cabinet 10 is intended. The electrical devices are not shown.
  • the chassis 40 is shown in a so-called “mounting” position relative to the frame 20, which is a normal position of use.
  • the chassis 40 has a generally rectangular shape and extends along a fixing plane P40.
  • the chassis 40 comprises a front face 40A and a rear face 40B, oriented opposite the front face 40A.
  • the fixing plane P40 is orthogonal to the depth axis X10, the front face 40A being oriented towards the front, while the rear face 40B is oriented towards the rear.
  • the frame 40 comprises a bottom edge 42 and a top edge 44, opposite the bottom edge 42. In the mounting position, in the bottom edge 42 is located near the bottom frame 22, while the top edge 44 is located near the high frame 24.
  • the low edge 42 is carried by two slides 23A, which are fixed to the low frame 22 parallel to the depth axis X10, while the high edge 44 is held in position relative to the high frame 24 by two positioning devices 100, which are each fixed to one of the fittings 26 of the high frame 24, these fittings being parallel to the slides 23A.
  • the slides 23A define a mounting direction of the chassis 40, the mounting direction here being parallel to the depth axis X10.
  • the depth axis X10 is also a mounting direction for the fittings 26 on which the positioning devices 100 are fixed, and for these positioning devices 100.
  • the two positioning devices 100 are arranged symmetrically with respect to the sagittal plane S10 and have a shape symmetrical with respect to each other. What is valid for one of the positioning devices 100 can be transposed to the other positioning device. We now describe, using Figures 2 and 3, that of the two positioning devices 100 located on the mower of Figure 1.
  • the fitting 26 on which the positioning device 100 is fixed comprises indexing holes 27A, which here each have a square shape and which are distributed along the fitting 26 at regular intervals, here every 25 mm.
  • Fixing holes 27B are also provided along the fitting 26. In the example illustrated, the fixing holes 27B are circular in shape and are provided between each indexing hole 27A.
  • the positioning device 100 comprises a bracket 102 and a non-return member, produced here by means of a plate 140.
  • the bracket 102 is made by folding and cutting a metal plate, preferably steel, and is considered rigid and non-deformable.
  • the bracket 102 includes a fastening portion 104, and a stopping portion 120.
  • the attachment portion 104 comprises a main portion 106, which is substantially flat and which extends along a mean plane P106. Holes 108 are provided in the main portion 106, for fixing the attachment portion 104 to the corresponding fitting 26, in other words to the high frame 24, by means of fixing members, which here are two screws 110 each cooperating with a respective hole 108 of the main portion and with a fixing hole 27B.
  • the holes 108 are oblong, parallel to the adjustment axis, so as to accommodate dimensional clearances when fixing the positioning device 100 to the corresponding fitting 26.
  • the attachment portion 104 advantageously comprises a tab 112, which extends out of the mean plane P106 and which is configured to cooperate with one of the indexing holes 27A - in particular by engagement of the tab 112 in the hole of indexing 27A chosen by the user -, so as to position the bracket 102 along the corresponding bracket 26 before placing the main portion 106 in support against the bracket 26 then fixing this bracket 102 by means of the fixing members 110 .
  • the stop portion 120 is arranged orthogonally to the adjustment axis, facing the high edge 44 of the chassis 40 and on the side of the rear face 40B of the chassis 40.
  • the stop portion 120 is configured to limit rearward movements of the chassis 40 when the chassis 40 is in its mounting position.
  • the stop portion 106 - and by extension the bracket 102 - forms a rear stop for the chassis 40 in the mounting position.
  • An orifice 122 is advantageously provided in the stop portion 120.
  • This orifice 122 here of rectangular shape, is intended to receive a cage capturing a nut, mounted floating relative to the cage, to secure the chassis 40 in the mounting position at the bracket 102 with fixing members such as screws.
  • the cage and floating nut are not shown.
  • the bracket 102 also includes an intermediate portion 124, which connects the stop portion 120 to the attachment portion 104.
  • the intermediate portion 124 extends here in a plane orthogonal to the height axis Z10, in other words here a horizontal plane. When the frame 40 is in the mounting position, the intermediate portion 124 extends opposite the high edge 44.
  • the 140 plate is manufactured by folding and cutting a metal plate.
  • the plate 140 is assembled to the bracket 102 by means of a fixing member, here a rivet 142, so that the plate 140 is mounted tilting relative to the bracket 102 around an axis called “unblocking" A140, which is here parallel to the transverse axis Y10.
  • the plate 140 comprises a fixing part 144, which is assembled to the attachment portion 106 by means of the rivet 142, and a stop part 146, which is located at a distance from the release axis A140.
  • the plate 140 is movable between two positions, namely a so-called “stop” position - as in particular shown in Figure 3 c) - and a so-called “raised” position - as in particular shown in Figure 3 b) -.
  • the stop part 146 is arranged opposite the stop portion and at a distance from the stop portion 120 of the bracket 102, providing a receiving volume V140 for the high edge 44 of the chassis 40 in mounting position.
  • the plate 140 in the stop position is configured to limit the movements of the chassis 40 in the forward direction when the chassis is in the mounting position.
  • the positioning device 100 is then in a stop configuration.
  • the stop part 146 does not face the stop portion 120.
  • the receiving volume V140 is open towards the front, and the plate 140 does not prevent the movements of the chassis 40 forward.
  • the positioning device 100 is then in a raised configuration.
  • the passage from the stop position to the defined raised position is an unlocking movement illustrated by the arrow R140, which here is a rotational movement centered on the unlocking axis A140.
  • a movement opposite to the unlocking movement R140 is therefore a blocking movement, illustrated by the arrow R’140.
  • the unlocking movement R140 continues until the stop part 146 comes to bear against the intermediate portion 124 of the bracket 102.
  • the plate 140 is fixed to the corresponding fitting 26, the plate 140 is configured to move from its raised position to its stop position by gravity, as illustrated in Figure 3 c).
  • the blocking movement R'140 is done by gravity, and the stop configuration is a natural configuration of the positioning device 100.
  • the positioning device 100 thus automatically allows the chassis 40 to be maintained in the mounting position, which provides the user with passive safety when assembling the chassis 40 to the frame 20.
  • the positioning device 100 comprises a return member, for example a spring, which tends to push the plate 140 from its raised position towards its stop position.
  • the fixing part 144 comprises a support zone 148, which is configured to come to bear on one of the fixing screws 110 when the plate 140 is in the abutment position, as in Figures 2 a), 3 a) and 3 c), so as to limit an angular amplitude of the blocking movement R'140 of the plate 140 and to maintain the stop part 146 facing the stop portion 120 of the bracket 102.
  • the support zone 148 is configured to come to rest on a projection formed on the attachment portion 106, for example by stamping.
  • the frame 20 is previously assembled, including the slides 23A and the positioning devices 100.
  • Lower stops are fixed to the slides 23A, to index a position of the chassis 40 along the slides 23A, the positioning devices 100 being fixed to the corresponding fittings 26 so as to be vertically aligned with the lower stops.
  • the bottom stops are not shown.
  • Each plate 140 is initially held, by gravity, in the stop position.
  • the frame 40 is introduced inclined by the front face 16A, placing the bottom edge 42 on the slides 23A.
  • the bottom edge 42 of the chassis 40 is moved on the slides 23A to the position indexed by the bottom stops.
  • the high edge 44 is gradually brought closer to the stopping portion 120 according to a lifting movement R40 of the chassis 40.
  • the lifting movement R40 is a rotational movement around an axis A40 parallel to the transverse axis Y10 and located at the bottom edge 42.
  • the electrical cabinet 10 is then in the configuration of Figure 3 a).
  • the movement of the high edge 44 includes a vertical component, oriented upwards, and a horizontal component, oriented backwards. While the lifting movement R40 continues, the high edge 44 comes to bear against the stop part 146 of the plate 140 and pushes the plate 140 towards its raised position, as in Figure 3 b).
  • the frame 40 pushes the plate 140 from its blocking position towards its raised position according to the unlocking movement R 140.
  • the plate 140 retracting towards its raised position, the plate 140 authorizes the movements of the high edge 44 - and by extension of the chassis 40 - in the rear direction.
  • the positioning device 100 is then in its stop configuration, as in Figure 3 c), in which the anti-return member maintains the chassis 40 in the mounting position.
  • the chassis 40 is automatically maintained in its mounting position, eliminating the risk of the chassis 40 tilting.
  • the plate 40 being riveted to the bracket 102, the anti-return member is integrated into the positioning device 100, in other words captive.
  • an operator can then, in complete safety, secure the chassis 40 to the brackets 102.
  • the operator if the operator wishes to dismantle the chassis 40 from the frame 20, the The operator must first press, for example with his fingers, on the plate 140 to move it according to the unlocking movement R140 and move the positioning device 100 to the raised configuration. Then, the operator tilts the chassis 40 in a movement opposite to the lifting movement R40.
  • the chassis 40 is held in position by two positioning devices 100.
  • the chassis 40 is held in position by a single positioning device 100, the configuration with two positioning devices 100 being however preferred because it offers superior security.
  • the anti-return member is produced by means of the plate 120, mounted tilting relative to the bracket 102 around an axis of rotation parallel to the transverse axis Y10.
  • This arrangement made here simply by means of rivet 142, is easy and inexpensive to implement.
  • the plate is mounted on a hinge around an axis of rotation parallel to the depth axis X10, the shape of the support zone being adapted accordingly to form the front stop when the plate is in position blocking.
  • the plate is replaced by an anti-return device of another type, for example a ratchet, mounted sliding and armed with a spring, like a door bolt.
  • an anti-return device of another type for example a ratchet, mounted sliding and armed with a spring, like a door bolt.
  • the anti-return member is carried by the bracket 102 and is configured to limit the forward movements of the chassis 40, when the chassis is in the mounting position, and to authorize the movements of the chassis 40 towards the rear until the chassis 40 is in the mounting position, when assembling the chassis 40 to the frame 20.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

The invention relates to a device (100) for positioning a frame (40) of an electrical cabinet (10) relative to a reinforcement (20) of this cabinet, the device comprising a bracket (102) which is configured to be fixed along a fitting (26) of an upper frame (24) of the reinforcement along an adjustment axis (X10) and which provides a stop portion (120) which is configured to restrict the movement of the frame in a rearward direction, parallel to the adjustment axis, when the frame is in a mounting position facing the stop portion. According to the invention, the positioning device comprises a non-return device carried by the bracket and configured to: - restrict the movement of the frame in a mounting position in a forward direction opposite the rearward direction; and - move the frame in the rearward direction toward the stop portion until the frame is in the mounting position.

Description

TITRE : Dispositif de positionnement d’un châssis d’armoire électrique, et armoire électrique associée TITLE: Device for positioning an electrical cabinet frame, and associated electrical cabinet
La présente invention concerne un dispositif de de positionnement d’un châssis d’armoire électrique, ainsi qu’une armoire électrique comprenant un tel dispositif de positionnement. The present invention relates to a device for positioning an electrical cabinet frame, as well as an electrical cabinet comprising such a positioning device.
Il est connu de fabriquer des armoires électriques à partir d’une armature, le plus souvent métallique, sur laquelle sont rapportés des panneaux qui obturent les faces de cette armoire et qui délimitent un volume interne de l’armoire. L’armature est formée d’un assemblage de ferrures et de raccord d’angles. L’armature présente une forme parallélépipédique, avec un cadre bas, qui comprend quatre ferrures basses assemblées à quatre raccords d’angle, formant un rectangle et qui est destiné à être posé sur le sol, d’un cadre haut, qui est formé de quatre ferrures hautes assemblées à quatre raccords d’angles, formant un rectangle et qui est et agencé en regard et à distance du cadre bas. Chaque raccord d’angle du cadre haut est relié, par un montant respectif, à un raccord d’angle respectif du cadre bas. Une face avant de l’armoire est généralement équipée d’une porte articulée sur l’armature. Les panneaux sont généralement des tôles métalliques. It is known to manufacture electrical cabinets from a frame, most often metallic, on which panels are attached which close the faces of this cabinet and which delimit an internal volume of the cabinet. The frame is made up of an assembly of fittings and corner connectors. The frame has a parallelepiped shape, with a low frame, which comprises four low fittings assembled with four corner connectors, forming a rectangle and which is intended to be placed on the ground, a high frame, which is formed of four high fittings assembled with four corner connectors, forming a rectangle and which is arranged opposite and at a distance from the low frame. Each corner connector of the upper frame is connected, by a respective upright, to a respective corner connector of the lower frame. One front of the cabinet is generally equipped with a door hinged on the frame. The panels are generally metal sheets.
Certains appareils électriques reçus dans le volume interne de l’armoire électrique, en particulier les appareils électriques lourds tels que les transformateurs, etc., sont montés sur une plaque métallique appelée châssis, laquelle est agencée verticalement dans le volume interne et fixée à l’armature. Une face du châssis, dite face de montage, est orientée vers la face avant de l’armoire, de manière que les appareils électriques fixés sur la face de montage sont visibles lorsque la porte de l’armoire électrique est ouverte. Some electrical appliances received in the internal volume of the electrical cabinet, especially heavy electrical appliances such as transformers, etc., are mounted on a metal plate called a chassis, which is arranged vertically in the internal volume and fixed to the frame. One face of the frame, called the mounting face, is oriented towards the front face of the cabinet, so that the electrical devices fixed on the mounting face are visible when the door of the electrical cabinet is open.
À titre d’illustration, selon les dimensions du châssis ce dernier présente une masse de plusieurs dizaines de kilogrammes, allant par exemple de 40 kg à 80 kg. Une fois les divers équipements montés sur le châssis, l’ensemble des équipements présente une charge totale allant jusqu’à plusieurs centaines de kilogrammes, par exemple de 400 kg à 600 kg. Le châssis est ainsi une pièce lourde, dont l’assemblage à l’armature est une opération demandant de l’attention pour prévenir les accidents. As an illustration, depending on the dimensions of the chassis, the latter has a mass of several tens of kilograms, ranging for example from 40 kg to 80 kg. Once the various pieces of equipment are mounted on the chassis, all of the equipment has a total load of up to several hundred kilograms, for example from 400 kg to 600 kg. The chassis is therefore a heavy part, whose assembly to the frame is an operation requiring attention to prevent accidents.
Une façon connue de fixer le châssis à l’armature d’une armoire électrique consiste à positionner un bord bas du châssis par rapport au cadre bas jusqu’à une position prédéterminée, identifiée par exemple par des butées basses préalablement positionnées le long de glissières fixées au cadre bas. Des équerres sont aussi préalablement fixées au cadre haut et forment des butées hautes, qui sont verticalement alignées avec les butées basses. Un bord haut du châssis, opposé au bord bas, est ensuite mis en butée contre les butées hautes. Le châssis se retrouve alors en position verticale. Le châssis est enfin sécurisé au cadre haut par vissage du châssis aux butées hautes, et éventuellement aux butées basses, notamment en fonction de la charge totale prévue pour être supportée par le châssis. Tant que le châssis n’est pas sécurisé au cadre haut, il subsiste un risque de basculement du châssis. Une personne doit donc maintenir en permanence le châssis en regard des butées hautes pendant qu’une autre personne visse le châssis aux butées hautes. A known way of fixing the frame to the frame of an electrical cabinet consists of positioning a bottom edge of the frame relative to the bottom frame up to a predetermined position, identified for example by bottom stops previously positioned along fixed slides to the low frame. Brackets are also previously fixed to the high frame and form upper stops, which are vertically aligned with the lower stops. A top edge of the frame, opposite the bottom edge, is then placed against the high stops. The chassis then finds itself in a vertical position. The chassis is finally secured to the high frame by screwing the chassis to the upper stops, and possibly to the lower stops, in particular depending on the total load planned to be supported by the chassis. As long as the chassis is not secured to the high frame, there remains a risk of the chassis tipping over. One person must therefore permanently hold the chassis facing the upper stops while another person screws the chassis to the upper stops.
DE-93 07 1 13-U1 , EP-0 901 207-A1 et DE-14 65 775-A1 décrivent chacun des exemples de dispositifs de positionnement connus. DE-93 07 1 13-U1, EP-0 901 207-A1 and DE-14 65 775-A1 each describe examples of known positioning devices.
C’est à ces problèmes qu’entend plus particulièrement remédier l’invention, en proposant un dispositif de positionnement du châssis qui permette un assemblage facilité et sécurisé du châssis de l’armoire électrique. It is these problems that the invention aims to remedy in particular, by proposing a chassis positioning device which allows easy and secure assembly of the electrical cabinet chassis.
À cet effet, l’invention concerne un dispositif de positionnement d’un châssis d’armoire électrique par rapport à une armature de l’armoire électrique, ce dispositif de positionnement comprenant une équerre qui comporte : une portion d’attache, configurée pour être fixée le long d’une ferrure d’un cadre haut de l’armature selon un axe de réglage, et une portion d’arrêt, agencée orthogonalement à l’axe de réglage et configurée pour limiter des mouvements du châssis selon une direction arrière, parallèle à l’axe de réglage, lorsque le châssis est dans une position de montage, en regard de la portion d’arrêt. To this end, the invention relates to a device for positioning an electrical cabinet frame relative to a frame of the electrical cabinet, this positioning device comprising a bracket which comprises: a fastening portion, configured to be fixed along a fitting of a top frame of the frame along an adjustment axis, and a stopping portion, arranged orthogonally to the adjustment axis and configured to limit movements of the chassis in a rearward direction, parallel to the adjustment axis, when the chassis is in a mounting position, facing the stopping portion.
Selon l’invention, le dispositif de positionnement comprend un organe anti-retour, qui est porté par l’équerre et qui est configuré pour : According to the invention, the positioning device comprises an anti-return member, which is carried by the bracket and which is configured to:
- limiter les mouvements du châssis dans une direction avant, opposée de la direction arrière, lorsque le châssis est en position de montage, et autoriser les mouvements du châssis selon la direction arrière vers la portion d’arrêt, jusqu’à ce que le châssis soit en position de montage. - limit the movements of the chassis in a forward direction, opposite to the rear direction, when the chassis is in the assembly position, and authorize the movements of the chassis in the rear direction towards the stopping portion, until the chassis either in the mounting position.
Grâce à l’invention, une fois que le châssis est mis en butée contre la portion d’arrêt, l’organe anti-retour assure le maintien le châssis en regard de cette portion d’arrêt, évitant les risques de basculement du châssis. Il n’est plus nécessaire qu’une personne maintienne en position le châssis pendant qu’une autre personne sécurise le châssis à l’armature. Une seule personne suffit ainsi à assembler le châssis à l’armature, ce qui est économique. Avantageusement, l’organe anti-retour est mis en œuvre automatiquement, ce qui est particulièrement pratique. Selon des aspects avantageux mais non obligatoires de l’invention, un tel dispositif de positionnement peut incorporer une ou plusieurs des caractéristiques suivantes prises isolément ou selon toute combinaison techniquement admissible : Thanks to the invention, once the chassis is placed in abutment against the stopping portion, the anti-return member ensures that the chassis is held opposite this stopping portion, avoiding the risk of the chassis tilting. It is no longer necessary for one person to hold the frame in position while another person secures the frame to the frame. Only one person is needed to assemble the chassis to the frame, which is economical. Advantageously, the anti-return device is implemented automatically, which is particularly practical. According to advantageous but not obligatory aspects of the invention, such a positioning device can incorporate one or more of the following characteristics taken in isolation or in any technically admissible combination:
- l’organe anti-retour comprend une plaquette montée basculante par rapport à l’équerre, la plaquette étant mobile, selon un mouvement de déblocage, entre : - the anti-return member comprises a plate mounted to tilt relative to the bracket, the plate being movable, in an unlocking movement, between:
• une position de butée, dans laquelle la plaquette est agencée en regard de la portion d’arrêt et à distance de la portion d’arrêt, la plaquette en position de butée étant configurée pour limiter les mouvements du châssis dans la direction avant lorsque le châssis est en position de montage, et • a stop position, in which the plate is arranged facing the stop portion and at a distance from the stop portion, the plate in the stop position being configured to limit the movements of the chassis in the forward direction when the chassis is in the mounting position, and
• une position relevée, dans laquelle la plaquette n’empêche pas les mouvements du châssis selon la direction avant. • a raised position, in which the pad does not prevent movement of the chassis in the forward direction.
La plaquette tend à passer de sa position relevée à sa position de butée par gravité. Le dispositif de positionnement comprend un organe de rappel, qui tend à repousser la plaquette de sa position relevée vers sa position de butée. The plate tends to move from its raised position to its stop position by gravity. The positioning device comprises a return member, which tends to push the plate from its raised position towards its stop position.
La portion d’attache s’étend selon un plan moyen et est configurée pour être fixée au cadre haut au moyen d’organes de fixation, par exemple des vis, alors que I plaquette comprend une partie de fixation, qui est assemblée à la portion d’attache de manière que mouvement de déblocage est un mouvement de rotation de la plaquette par rapport à la portion de fixation, autour d’un axe de déblocage orthogonal au plan moyen, et que la partie de fixation comprend une zone d’appui, configurée pour venir en appui sur les organes de fixation lorsque la plaquette est en position de blocage. The attachment portion extends along a medium plane and is configured to be fixed to the high frame by means of fixing members, for example screws, while the plate comprises a fixing part, which is assembled to the portion attachment so that the unlocking movement is a rotational movement of the plate relative to the fixing portion, around an unlocking axis orthogonal to the mean plane, and that the fixing part comprises a support zone, configured to come to bear on the fixing members when the plate is in the locking position.
La plaquette comprend une partie de butée, qui est agencée de manière à limiter les mouvements du châssis dans la direction avant lorsque le châssis est en position de montage, alors que la partie de butée est en appui contre l’équerre lorsque la plaquette est en position relevée. The plate comprises a stop part, which is arranged so as to limit the movements of the chassis in the forward direction when the chassis is in the mounting position, while the stop part is supported against the bracket when the plate is in position. raised position.
L’invention sera mieux comprise, et d’autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui va suivre, d’un mode de réalisation d’un dispositif de positionnement, d’une armoire électrique et d’un procédé de montage, conformes à son principe, donnée uniquement à titre d’exemple et faite en référence aux dessins annexés, dans lesquels : The invention will be better understood, and other advantages thereof will appear more clearly in the light of the description which follows, of an embodiment of a positioning device, an electrical cabinet and an assembly method, consistent with its principle, given solely by way of example and made with reference to the appended drawings, in which:
- [Fig 1] la figure 1 est une perspective d’une armoire électrique conforme à l’invention, comprenant un châssis maintenu dans une position de montage au moyen d’un dispositif de positionnement, lui aussi conforme à l’invention ; - [Fig 2] la figure 2 représente respectivement, sur deux inserts a) et b), une vue à plus grande échelle du cadre II à la figure 1 et une perspective éclatée du dispositif de positionnement de la figure 1 , et - [Fig 1] Figure 1 is a perspective of an electrical cabinet according to the invention, comprising a frame held in a mounting position by means of a positioning device, also according to the invention; - [Fig 2] Figure 2 represents respectively, on two inserts a) and b), a larger scale view of frame II in Figure 1 and an exploded perspective of the positioning device of Figure 1, and
- [Fig 3] la figure 3 représente, sur trois inserts a), b) et c), trois étapes successives d’une séquence de montage de l’armoire électrique de la figure 1 , observée selon la flèche III à la figure 2. - [Fig 3] Figure 3 represents, on three inserts a), b) and c), three successive stages of an assembly sequence of the electrical cabinet of Figure 1, observed according to arrow III in Figure 2 .
Une armoire électrique 10 est représentée en figure 1. L’armoire électrique 10 comprend une armature 20, qui présente une forme globalement parallélépipédique et qui délimite un volume interne V20 de l’armoire électrique. L’armoire électrique 10 comprend ainsi une face basse 12, qui repose sur un sol 1 1 , une face haute 14, qui est parallèle à la face basse 12, et quatre faces latérales 16. Par extension, les faces basse 12, haute 14 et latérales 16 de l’armoire électrique 10 sont aussi des faces basse 12, haute 14 et latérales 16 de l’armature 20. An electrical cabinet 10 is shown in Figure 1. The electrical cabinet 10 comprises an armature 20, which has a generally parallelepiped shape and which delimits an internal volume V20 of the electrical cabinet. The electrical cabinet 10 thus comprises a low face 12, which rests on a floor 11, a high face 14, which is parallel to the low face 12, and four side faces 16. By extension, the low faces 12, high faces 14 and sides 16 of the electrical cabinet 10 are also the bottom 12, top 14 and side 16 faces of the frame 20.
Le sol 11 est supposé horizontal, l’armoire électrique 10 étant représentée dans une position normale d’utilisation. Par commodité, on définit un axe de hauteur Z10, qui est orthogonal au sol 1 1 , soit ici vertical. On définit un axe de profondeur X10 et un axe transversal Y10, qui sont agencés de manière que les trois axes de profondeur X10, transversal Y10 et de hauteur Z10 forment ensemble un repère direct. L’axe de profondeur X10 et l’axe transversal Y10 sont donc parallèles au sol 1 1 et sont ici horizontaux. The floor 11 is assumed to be horizontal, the electrical cabinet 10 being shown in a normal use position. For convenience, we define an axis of height Z10, which is orthogonal to the ground 1 1, or here vertical. We define a depth axis X10 and a transverse axis Y10, which are arranged so that the three axes of depth X10, transverse Y10 and height Z10 together form a direct reference mark. The depth axis X10 and the transverse axis Y10 are therefore parallel to the ground 1 1 and are here horizontal.
L’armoire électrique 10 comprend généralement des panneaux, qui sont fixés à l’armature 20 de manière à obturer les faces 12, 14 et 16, afin de séparer physiquement et électriquement les appareils électriques reçus dans le volume interne V20 de l’extérieur de l’armoire électrique 10. Les panneaux ne sont pas représentés. Les panneaux sont généralement fabriqués par pliage et/ou découpage d’une tôle métallique, présentant typiquement une épaisseur comprise entre 1 ,5 mm et 2 mm. The electrical cabinet 10 generally comprises panels, which are fixed to the frame 20 so as to close the faces 12, 14 and 16, in order to physically and electrically separate the electrical devices received in the internal volume V20 from the exterior of the electrical cabinet 10. The panels are not shown. The panels are generally manufactured by folding and/or cutting a metal sheet, typically having a thickness of between 1.5 mm and 2 mm.
Une des faces latérales 16, dite face avant 16A, est généralement obturée par un panneau monté sur charnière, de manière à former une porte d’accès au volume interne V20. Par extension, la face avant 16A est aussi une face Dans l’exemple de la figure 1 , la face avant 16A est orthogonale à l’axe de profondeur X10. On définit une direction avant comme étant une direction parallèle à l’axe de profondeur X10 et orientée vers un utilisateur se tenant devant la face avant 16A. Une direction arrière est une direction opposée à la direction avant. Sur les figures, la direction avant est donc orientée vers la gauche, tandis que la direction arrière est orientée vers la droite. La présente description est donnée en référence à l’orientation des divers éléments de l’armoire électrique 10 sur les figures, sachant que ces éléments peuvent être orientés différemment dans la réalité. L’armature 20 présente une forme globalement symétrique par rapport à un plan sagittal S10, qui est orthogonal à l’axe transversal Y10. L’armature 20 comprend un cadre bas 22, qui borde la face basse 12, et un cadre haut 24, qui borde la face haute 14. Le cadre bas 22 et le cadre haut 24 sont chacun formés d’un assemblage de quatre ferrures 26 avec quatre raccords d’angle 28, de manière à former un rectangle. Chaque raccord d’angle 28 du cadre bas 22 est relié à un raccord d’angle 28 respectif du cadre haut 24 par un montant 30 respectif. L’armature 20 comprend donc quatre montants 30, qui sont parallèles à l’axe de hauteur Z10. One of the side faces 16, called the front face 16A, is generally closed by a panel mounted on a hinge, so as to form an access door to the internal volume V20. By extension, the front face 16A is also a face. In the example of Figure 1, the front face 16A is orthogonal to the depth axis X10. A forward direction is defined as being a direction parallel to the depth axis X10 and oriented towards a user standing in front of the front face 16A. A reverse direction is a direction opposite to the forward direction. In the figures, the front direction is therefore oriented towards the left, while the rear direction is oriented towards the right. The present description is given with reference to the orientation of the various elements of the electrical cabinet 10 in the figures, knowing that these elements can be oriented differently in reality. The frame 20 has a generally symmetrical shape with respect to a sagittal plane S10, which is orthogonal to the transverse axis Y10. The frame 20 comprises a low frame 22, which borders the low face 12, and a high frame 24, which borders the high face 14. The low frame 22 and the high frame 24 are each formed from an assembly of four fittings 26 with four corner connectors 28, so as to form a rectangle. Each corner connector 28 of the lower frame 22 is connected to a respective corner connector 28 of the upper frame 24 by a respective upright 30. The frame 20 therefore comprises four uprights 30, which are parallel to the height axis Z10.
L’armoire électrique 10 comprend un châssis 40, qui est reçu dans le volume interne V20 et qui est fixé à l’armature 20. Le châssis 40 est ici réalisé par pliage et découpage d’une plaque métallique, de préférence en acier, présentant typiquement une épaisseur comprise entre 2 mm et 3 mm. Le châssis 40 est ainsi considéré comme rigide et indéformable. Le châssis 40 est configuré pour recevoir divers appareils électriques tels que des contacteurs, disjoncteurs, transformateurs, boitiers fusibles, etc., en fonction de l’utilisation à laquelle est destinée l’armoire électrique 10. Les appareils électriques ne sont pas représentés. The electrical cabinet 10 comprises a frame 40, which is received in the internal volume V20 and which is fixed to the frame 20. The frame 40 is here produced by folding and cutting a metal plate, preferably made of steel, having typically a thickness between 2 mm and 3 mm. The chassis 40 is thus considered rigid and non-deformable. The chassis 40 is configured to receive various electrical devices such as contactors, circuit breakers, transformers, fuse boxes, etc., depending on the use for which the electrical cabinet 10 is intended. The electrical devices are not shown.
Sur les figures 1 , 2a) et 3c), le châssis 40 est représenté dans une position dite « de montage » par rapport à l’armature 20, qui est une position normale d’utilisation. Le châssis 40 présente une forme globalement rectangulaire et s’étend selon un plan de fixation P40. Le châssis 40 comprend une face avant 40A et une face arrière 40B, orientée à l’opposé de la face avant 40A. En position de montage, le plan de fixation P40 est orthogonal à l’axe de profondeur X10, la face avant 40A étant orientée vers l’avant, tandis que la face arrière 40B est orientée vers l’arrière. Le châssis 40 comprend un bord bas 42 et un bord haut 44, opposé au bord bas 42. En position de montage, dans le bord bas 42 est situé à proximité du cadre bas 22, tandis que le bord haut 44 est situé à proximité du cadre haut 24. Dans l’exemple illustré, le bord bas 42 est porté par deux glissières 23A, qui sont fixées au cadre bas 22 parallèlement à l’axe de profondeur X10, tandis que le bord haut 44 est maintenu en position par rapport au cadre haut 24 par deux dispositifs de positionnement 100, qui sont chacun fixés à une des ferrures 26 du cadre haut 24, ces ferrures étant parallèles aux glissières 23A. Les glissières 23A définissent une direction de montage du châssis 40, la direction de montage étant ici parallèle à l’axe de profondeur X10. Par extension, l’axe de profondeur X10 est aussi une direction de montage pour les ferrures 26 sur lesquelles sont fixés les dispositifs de positionnement 100, et pour ces dispositifs de positionnement 100. In Figures 1, 2a) and 3c), the chassis 40 is shown in a so-called “mounting” position relative to the frame 20, which is a normal position of use. The chassis 40 has a generally rectangular shape and extends along a fixing plane P40. The chassis 40 comprises a front face 40A and a rear face 40B, oriented opposite the front face 40A. In the mounting position, the fixing plane P40 is orthogonal to the depth axis X10, the front face 40A being oriented towards the front, while the rear face 40B is oriented towards the rear. The frame 40 comprises a bottom edge 42 and a top edge 44, opposite the bottom edge 42. In the mounting position, in the bottom edge 42 is located near the bottom frame 22, while the top edge 44 is located near the high frame 24. In the example illustrated, the low edge 42 is carried by two slides 23A, which are fixed to the low frame 22 parallel to the depth axis X10, while the high edge 44 is held in position relative to the high frame 24 by two positioning devices 100, which are each fixed to one of the fittings 26 of the high frame 24, these fittings being parallel to the slides 23A. The slides 23A define a mounting direction of the chassis 40, the mounting direction here being parallel to the depth axis X10. By extension, the depth axis X10 is also a mounting direction for the fittings 26 on which the positioning devices 100 are fixed, and for these positioning devices 100.
Les deux dispositifs de positionnement 100 sont agencés symétriquement par rapport au plan sagittal S10 et présentent une forme symétrique l’un par rapport à l’autre. Ce qui est valable pour l’un des dispositifs de positionnement 100 est transposable à l’autre dispositif de positionnement. On décrit à présent, à l’aide des figures 2 et 3, celui des deux dispositifs de positionnement 100 situé sur la fauche de la figure 1 . The two positioning devices 100 are arranged symmetrically with respect to the sagittal plane S10 and have a shape symmetrical with respect to each other. What is valid for one of the positioning devices 100 can be transposed to the other positioning device. We now describe, using Figures 2 and 3, that of the two positioning devices 100 located on the mower of Figure 1.
La ferrure 26 sur laquelle est fixée le dispositif de positionnement 100 comprend des trous d’indexage 27A, qui présentent ici chacun une forme carrée et qui sont répartis le long de la ferrure 26 à intervalles réguliers, ici tous les 25 mm. Des trous de fixation 27B sont aussi ménagés le long de la ferrure 26. Dans l’exemple illustré, les trous de fixation 27B sont de forme circulaire et sont ménagés entre chaque trou d’indexage 27A. The fitting 26 on which the positioning device 100 is fixed comprises indexing holes 27A, which here each have a square shape and which are distributed along the fitting 26 at regular intervals, here every 25 mm. Fixing holes 27B are also provided along the fitting 26. In the example illustrated, the fixing holes 27B are circular in shape and are provided between each indexing hole 27A.
Le dispositif de positionnement 100 comprend une équerre 102 et un organe antiretour, réalisé ici au moyen d’une plaquette 140. The positioning device 100 comprises a bracket 102 and a non-return member, produced here by means of a plate 140.
L’équerre 102 est réalisée par pliage et découpage d’une plaque métallique, de préférence en acier, et est considérée comme rigide et indéformable. L’équerre 102 comprend une portion d’attache 104, et une portion d’arrêt 120. The bracket 102 is made by folding and cutting a metal plate, preferably steel, and is considered rigid and non-deformable. The bracket 102 includes a fastening portion 104, and a stopping portion 120.
La portion d’attache 104 comprend une portion principale 106, qui est sensiblement plane et qui s’étend selon un plan moyen P106. Des trous 108 sont ménagés dans la portion principale 106, pour la fixation de la portion d’attache 104 à la ferrure 26 correspondante, autrement dit au cadre haut 24, aux moyens d’organes de fixation, qui sont ici deux vis 110 coopérant chacune avec un trou 108 respectif de la portion principale et avec un trou de fixation 27B. Les trous 108 sont oblongs, parallèlement à l’axe de réglage, de manière à accommoder les jeux dimensionnels lors de la fixation du dispositif de positionnement 100 à la ferrure 26 correspondante. The attachment portion 104 comprises a main portion 106, which is substantially flat and which extends along a mean plane P106. Holes 108 are provided in the main portion 106, for fixing the attachment portion 104 to the corresponding fitting 26, in other words to the high frame 24, by means of fixing members, which here are two screws 110 each cooperating with a respective hole 108 of the main portion and with a fixing hole 27B. The holes 108 are oblong, parallel to the adjustment axis, so as to accommodate dimensional clearances when fixing the positioning device 100 to the corresponding fitting 26.
La portion d’attache 104 comprend avantageusement une patte 112, qui s’étend en saillie hors du plan moyen P106 et qui est configurée pour coopérer avec un des trous d’indexage 27A - notamment par engagement de la patte 112 dans le trou d’indexage 27A choisi par l’utilisateur -, de manière à positionner l’équerre 102 le long de la ferrure 26 correspondante avant de mettre la portion principale 106 en appui contre la ferrure 26 puis de fixer cette équerre 102 au moyen des organes de fixation 110. The attachment portion 104 advantageously comprises a tab 112, which extends out of the mean plane P106 and which is configured to cooperate with one of the indexing holes 27A - in particular by engagement of the tab 112 in the hole of indexing 27A chosen by the user -, so as to position the bracket 102 along the corresponding bracket 26 before placing the main portion 106 in support against the bracket 26 then fixing this bracket 102 by means of the fixing members 110 .
Lorsque la portion d’attache 104 est fixée à la ferrure 26 correspondante, comme représenté sur la figure 2 a), la portion d’arrêt 120 est agencée orthogonalement à l’axe de réglage, en regard du bord haut 44 du châssis 40 et du côté de la face arrière 40B du châssis 40. Ainsi la portion d’arrêt 120 est configurée pour limiter des mouvements du châssis 40 vers l’arrière lorsque le châssis 40 est dans sa position de montage. Autrement dit, la portion d’arrêt 106 - et par extension l’équerre 102 - forme une butée arrière pour le châssis 40 en position de montage. When the attachment portion 104 is fixed to the corresponding fitting 26, as shown in Figure 2 a), the stop portion 120 is arranged orthogonally to the adjustment axis, facing the high edge 44 of the chassis 40 and on the side of the rear face 40B of the chassis 40. Thus the stop portion 120 is configured to limit rearward movements of the chassis 40 when the chassis 40 is in its mounting position. In other words, the stop portion 106 - and by extension the bracket 102 - forms a rear stop for the chassis 40 in the mounting position.
Un orifice 122 est avantageusement ménagé dans la portion d’arrêt 120. Cet orifice 122, ici de forme rectangulaire, est prévu pour recevoir une cage capturant un écrou, monté flottant par rapport à la cage, pour sécuriser le châssis 40 en position de montage à l’équerre 102 avec des organes de fixation tels que des vis. La cage et l’écrou flottant ne sont pas représentés. An orifice 122 is advantageously provided in the stop portion 120. This orifice 122, here of rectangular shape, is intended to receive a cage capturing a nut, mounted floating relative to the cage, to secure the chassis 40 in the mounting position at the bracket 102 with fixing members such as screws. The cage and floating nut are not shown.
L’équerre 102 comprend aussi une portion intermédiaire 124, qui relie la portion d’arrêt 120 à la portion d’attache 104. La portion intermédiaire 124 s’étend ici dans un plan orthogonal à l’axe de hauteur Z10, autrement dit ici un plan horizontal. Lorsque le châssis 40 est en position de montage, la portion intermédiaire 124 s’étend en regard du bord haut 44. The bracket 102 also includes an intermediate portion 124, which connects the stop portion 120 to the attachment portion 104. The intermediate portion 124 extends here in a plane orthogonal to the height axis Z10, in other words here a horizontal plane. When the frame 40 is in the mounting position, the intermediate portion 124 extends opposite the high edge 44.
La plaquette 140 est fabriquée par pliage et découpage d’une plaque métallique. La plaquette 140 est assemblée à l’équerre 102 au moyen d’un organe de fixation, ici un rivet 142, de manière que la plaquette 140 est montée basculante par rapport à l’équerre 102 autour d’un axe dit « de déblocage » A140, qui est ici parallèle à l’axe transversal Y10. The 140 plate is manufactured by folding and cutting a metal plate. The plate 140 is assembled to the bracket 102 by means of a fixing member, here a rivet 142, so that the plate 140 is mounted tilting relative to the bracket 102 around an axis called "unblocking" A140, which is here parallel to the transverse axis Y10.
La plaquette 140 comprend une partie de fixation 144, qui est assemblée à la portion d’attache 106 au moyen du rivet 142, et une partie de butée146, qui est située à distance de l’axe de déblocage A140. The plate 140 comprises a fixing part 144, which is assembled to the attachment portion 106 by means of the rivet 142, and a stop part 146, which is located at a distance from the release axis A140.
La plaquette 140 est mobile entre deux positions, à savoir une position dite « de butée » - comme notamment représenté sur la figure 3 c) - et une position dite « relevée » - comme notamment représenté sur la figure 3 b) -. The plate 140 is movable between two positions, namely a so-called "stop" position - as in particular shown in Figure 3 c) - and a so-called "raised" position - as in particular shown in Figure 3 b) -.
En position de butée, la partie de butée 146 est agencée en regard de la portion d’arrêt et à distance de la portion d’arrêt 120 de l’équerre 102, ménageant un volume de réception V140 pour le bord haut 44 du châssis 40 en position de montage. Ainsi, la plaquette 140 en position de butée est configurée pour limiter les mouvements du châssis 40 dans la direction avant lorsque le châssis est en position de montage. Le dispositif de positionnement 100 est alors dans une configuration de butée. In the stop position, the stop part 146 is arranged opposite the stop portion and at a distance from the stop portion 120 of the bracket 102, providing a receiving volume V140 for the high edge 44 of the chassis 40 in mounting position. Thus, the plate 140 in the stop position is configured to limit the movements of the chassis 40 in the forward direction when the chassis is in the mounting position. The positioning device 100 is then in a stop configuration.
En position relevée, la partie de butée 146 n’est pas en regard de la portion d’arrêt 120. Autrement dit, le volume de réception V140 est ouvert vers l’avant, et la plaquette 140 n’empêche pas les mouvements du châssis 40 vers l’avant. Le dispositif de positionnement 100 est alors dans une configuration relevée. In the raised position, the stop part 146 does not face the stop portion 120. In other words, the receiving volume V140 is open towards the front, and the plate 140 does not prevent the movements of the chassis 40 forward. The positioning device 100 is then in a raised configuration.
Le passage de la position de butée vers la position relevée définit est un mouvement de déblocage illustré par la flèche R140, qui est un ici mouvement de rotation centré sur l’axe de déblocage A140. Un mouvement inverse du mouvement de déblocage R140 est donc un mouvement de blocage, illustré par la flèche R’140. The passage from the stop position to the defined raised position is an unlocking movement illustrated by the arrow R140, which here is a rotational movement centered on the unlocking axis A140. A movement opposite to the unlocking movement R140 is therefore a blocking movement, illustrated by the arrow R’140.
Lorsque la plaquette 140 est déplacée de sa position de butée suivant le mouvement de déblocage R140, le mouvement de déblocage R140 continue jusqu’à ce que la partie de butée 146 viennent en appui contre la portion intermédiaire 124 de l’équerre 102. Lorsque le dispositif de positionnement 100 est fixé à la ferrure 26 correspondante, la plaquette 140 est configurée pour passer de sa position relevée à sa position de butée par gravité, comme illustré sur la figure 3 c). Autrement dit, le mouvement de blocage R’140 se fait par gravité, et la configuration de butée est une configuration naturelle du dispositif de positionnement 100. Le dispositif de positionnement 100 permet ainsi automatiquement le maintien du châssis 40 en position de montage, ce qui procure à l’utilisateur une sécurité passive lors de l’assemblage du châssis 40 à l’armature 20. When the plate 140 is moved from its stop position following the unlocking movement R140, the unlocking movement R140 continues until the stop part 146 comes to bear against the intermediate portion 124 of the bracket 102. When the positioning device 100 is fixed to the corresponding fitting 26, the plate 140 is configured to move from its raised position to its stop position by gravity, as illustrated in Figure 3 c). In other words, the blocking movement R'140 is done by gravity, and the stop configuration is a natural configuration of the positioning device 100. The positioning device 100 thus automatically allows the chassis 40 to be maintained in the mounting position, which provides the user with passive safety when assembling the chassis 40 to the frame 20.
En variante non représentée, le dispositif de positionnement 100 comprend un organe de rappel, par exemple un ressort, qui tend à repousser la plaquette 140 de sa position relevée vers sa position de butée. In a variant not shown, the positioning device 100 comprises a return member, for example a spring, which tends to push the plate 140 from its raised position towards its stop position.
La partie de fixation 144 comprend une zone d’appui 148, qui est configurée pour venir en appui sur l’une des vis 110 de fixation lorsque la plaquette 140 est en position de butée, comme sur les figures 2 a), 3 a) et 3 c), de manière à limiter une amplitude angulaire du mouvement de blocage R’140 de la plaquette 140 et à maintenir la partie de butée 146 en regard de la portion d’arrêt 120 de l’équerre 102. The fixing part 144 comprises a support zone 148, which is configured to come to bear on one of the fixing screws 110 when the plate 140 is in the abutment position, as in Figures 2 a), 3 a) and 3 c), so as to limit an angular amplitude of the blocking movement R'140 of the plate 140 and to maintain the stop part 146 facing the stop portion 120 of the bracket 102.
En variante non représentée, la zone d’appui 148 est configurée pour venir en appui sur une saillie ménagée sur la portion d’attache 106, par exemple par emboutissage. As a variant not shown, the support zone 148 is configured to come to rest on a projection formed on the attachment portion 106, for example by stamping.
On décrit à présent un procédé de montage de l’armoire électrique 10. We now describe a method of assembling the electrical cabinet 10.
L’armature 20 est préalablement assemblée, y compris les glissières 23A et les dispositifs de positionnement 100. Des butées basses sont fixées au glissières 23A, pour indexer une position du châssis 40 le long des glissières 23A, les dispositifs de positionnement 100 étant fixés aux ferrures 26 correspondantes de manière à être verticalement alignées avec les butées basses. Les butées basses ne sont pas représentées. Chaque plaquette 140 est initialement maintenue, par gravité, dans la position de butée. The frame 20 is previously assembled, including the slides 23A and the positioning devices 100. Lower stops are fixed to the slides 23A, to index a position of the chassis 40 along the slides 23A, the positioning devices 100 being fixed to the corresponding fittings 26 so as to be vertically aligned with the lower stops. The bottom stops are not shown. Each plate 140 is initially held, by gravity, in the stop position.
Initialement, le châssis 40 est introduit incliné par la face avant 16A, en posant le bord bas 42 sur les glissières 23A. Le bord bas 42 du châssis 40 est déplacé sur les glissières 23A jusqu’à la position indexée par les butées basses. Initially, the frame 40 is introduced inclined by the front face 16A, placing the bottom edge 42 on the slides 23A. The bottom edge 42 of the chassis 40 is moved on the slides 23A to the position indexed by the bottom stops.
Ensuite, le bord haut 44 est progressivement rapproché de la portion d’arrêt 120 selon un mouvement de relevage R40 du châssis 40. De manière schématique, le mouvement de relevage R40 est un mouvement de rotation autour d’un axe A40 parallèle à l’axe transversal Y10 et situé au niveau du bord bas 42. L’armoire électrique 10 est alors dans la configuration de la figure 3 a). Au cours du mouvement de relevage R40, le mouvement du bord haut 44 comprend une composante verticale et orientée vers le haut, et une composante horizontale, orientée vers l’arrière. Alors que le mouvement de relevage R40 continue, le bord haut 44 vient en appui contre la partie de butée 146 de la plaquette 140 et repousse la plaquette 140 vers sa position relevée, comme sur la figure 3 b). Autrement dit, le châssis 40 repousse la plaquette 140 de sa position de blocage vers sa position relevée selon le mouvement de déblocage R 140. La plaquette 140 s’escamotant vers sa position relevée, la plaquette 140 autorise les mouvements du bord haut 44 - et par extension du châssis 40 - selon la direction arrière. Then, the high edge 44 is gradually brought closer to the stopping portion 120 according to a lifting movement R40 of the chassis 40. Schematically, the lifting movement R40 is a rotational movement around an axis A40 parallel to the transverse axis Y10 and located at the bottom edge 42. The electrical cabinet 10 is then in the configuration of Figure 3 a). During the lifting movement R40, the movement of the high edge 44 includes a vertical component, oriented upwards, and a horizontal component, oriented backwards. While the lifting movement R40 continues, the high edge 44 comes to bear against the stop part 146 of the plate 140 and pushes the plate 140 towards its raised position, as in Figure 3 b). In other words, the frame 40 pushes the plate 140 from its blocking position towards its raised position according to the unlocking movement R 140. The plate 140 retracting towards its raised position, the plate 140 authorizes the movements of the high edge 44 - and by extension of the chassis 40 - in the rear direction.
Alors que le mouvement de relevage R40 continue, le bord haut 44 du châssis 40 arrive en butée avant contre la portion d’arrêt 120. Le châssis 40 est alors dans sa position de montage. La plaquette 140 revient dans sa position de butée par gravité, selon le mouvement de blocage R’140. Ainsi la plaquette 140 - et par extension l’organe antiretour - limite les mouvements du châssis 40 dans la direction avant. Le dispositif de positionnement 100 est alors dans sa configuration de butée, comme sur la figure 3 c), dans laquelle l’organe anti-retour maintient le châssis 40 en position de montage. While the lifting movement R40 continues, the high edge 44 of the chassis 40 comes into front abutment against the stopping portion 120. The chassis 40 is then in its mounting position. The plate 140 returns to its stop position by gravity, according to the blocking movement R’140. Thus the plate 140 - and by extension the anti-return member - limits the movements of the chassis 40 in the forward direction. The positioning device 100 is then in its stop configuration, as in Figure 3 c), in which the anti-return member maintains the chassis 40 in the mounting position.
Grâce au dispositif de positionnement 100 selon l’invention, le châssis 40 est automatiquement maintenu dans sa position de montage, supprimant les risques de basculement du châssis 40. La plaquette 40 étant rivetée à l’équerre 102, l’organe antiretour est intégré au dispositif de positionnement 100, autrement dit imperdable. Thanks to the positioning device 100 according to the invention, the chassis 40 is automatically maintained in its mounting position, eliminating the risk of the chassis 40 tilting. The plate 40 being riveted to the bracket 102, the anti-return member is integrated into the positioning device 100, in other words captive.
À partir de la configuration de montage, un opérateur peut ensuite, en toute sécurité, procéder à la sécurisation du châssis 40 aux équerres 102. À l’inverse, si l’opérateur souhaite démonter le châssis 40 de l’armature 20, l’opérateur doit tout d’abord appuyer, par exemple avec ses doigts, sur la plaquette 140 pour la déplacer selon le mouvement de déblocage R140 et faire passer le dispositif de positionnement 100 en configuration relevée. Ensuite, l’opérateur bascule le châssis 40 selon un mouvement inverse du mouvement de relevage R40. From the mounting configuration, an operator can then, in complete safety, secure the chassis 40 to the brackets 102. Conversely, if the operator wishes to dismantle the chassis 40 from the frame 20, the The operator must first press, for example with his fingers, on the plate 140 to move it according to the unlocking movement R140 and move the positioning device 100 to the raised configuration. Then, the operator tilts the chassis 40 in a movement opposite to the lifting movement R40.
Dans l’exemple illustré, le châssis 40 est maintenu en position par deux dispositifs de positionnement 100. En variante non illustrée, le châssis 40 est maintenu en position par un seul dispositif de positionnement 100, la configuration à deux dispositifs de positionnement 100 étant cependant préférée car offrant une sécurité supérieure. In the example illustrated, the chassis 40 is held in position by two positioning devices 100. In a variant not illustrated, the chassis 40 is held in position by a single positioning device 100, the configuration with two positioning devices 100 being however preferred because it offers superior security.
Dans l’exemple illustré, l’organe anti-retour est réalisé au moyen de la plaquette 120, montée basculante par rapport à l’équerre 102 autour d’un axe de rotation parallèle à l’axe transversal Y10. Cet agencement, réalisé ici simplement au moyen du rivet 142, est facile et peu coûteux à mettre en œuvre. D’autres agencements sont bien entendu possibles. En variante non illustrée, la plaquette est montée sur charnière autour d’un axe de rotation parallèle à l’axe de profondeur X10, la forme de la zone d’appui étant adaptée en conséquence pour former la butée avant lorsque la plaquette est en position de blocage. In the example illustrated, the anti-return member is produced by means of the plate 120, mounted tilting relative to the bracket 102 around an axis of rotation parallel to the transverse axis Y10. This arrangement, made here simply by means of rivet 142, is easy and inexpensive to implement. Other arrangements are of course possible. As a variant not shown, the plate is mounted on a hinge around an axis of rotation parallel to the depth axis X10, the shape of the support zone being adapted accordingly to form the front stop when the plate is in position blocking.
Selon une autre variante encore, la plaquette est remplacée par un dispositif anti- retour d’un autre type, par exemple un cliquet, monté coulissant et armé par un ressort, à la manière d’un pêne de porte. According to yet another variant, the plate is replaced by an anti-return device of another type, for example a ratchet, mounted sliding and armed with a spring, like a door bolt.
Quelle que soit la configuration choisie, l’organe anti-retour est porté par l’équerre 102 et est configuré pour limiter les mouvements du châssis 40 vers l’avant, lorsque le châssis est en position de montage, et pour autoriser les mouvements du châssis 40 vers l’arrière jusqu’à ce que le châssis 40 soit en position de montage, lors de l’assemblage du châssis 40 à l’armature 20. Whatever the configuration chosen, the anti-return member is carried by the bracket 102 and is configured to limit the forward movements of the chassis 40, when the chassis is in the mounting position, and to authorize the movements of the chassis 40 towards the rear until the chassis 40 is in the mounting position, when assembling the chassis 40 to the frame 20.
Les modes de réalisation et les variantes mentionnées ci-dessus peuvent être combinés entre eux pour générer de nouveaux modes de réalisation de l’invention. The embodiments and variants mentioned above can be combined with each other to generate new embodiments of the invention.

Claims

REVENDICATIONS
1. Dispositif de positionnement (100) d’un châssis (40) d’armoire électrique (10) par rapport à une armature (20) de l’armoire électrique (10), ce dispositif de positionnement (100) comprenant une équerre (102) qui comporte : une portion d’attache (104), configurée pour être fixée le long d’une ferrure (26) d’un cadre haut (24) de l’armature (20) selon un axe de réglage (X10), et une portion d’arrêt (120), agencée orthogonalement à l’axe de réglage (X10) et configurée pour limiter des mouvements du châssis (40) selon une direction arrière, parallèle à l’axe de réglage (X10), lorsque le châssis (40) est dans une position de montage, en regard de la portion d’arrêt (120), caractérisé en ce que le dispositif de positionnement (100) comprend un organe anti-retour, qui est porté par l’équerre (102) et qui est configuré pour : limiter les mouvements du châssis (40) dans une direction avant, opposée de la direction arrière, lorsque le châssis (40) est en position de montage, et autoriser les mouvements du châssis (40) selon la direction arrière vers la portion d’arrêt (120), jusqu’à ce que le châssis (40) soit en position de montage. 1. Positioning device (100) of a frame (40) of an electrical cabinet (10) relative to a frame (20) of the electrical cabinet (10), this positioning device (100) comprising a bracket ( 102) which comprises: a fastening portion (104), configured to be fixed along a fitting (26) of a high frame (24) of the frame (20) along an adjustment axis (X10) , and a stop portion (120), arranged orthogonally to the adjustment axis (X10) and configured to limit movements of the chassis (40) in a rearward direction, parallel to the adjustment axis (X10), when the chassis (40) is in a mounting position, facing the stopping portion (120), characterized in that the positioning device (100) comprises an anti-return member, which is carried by the bracket ( 102) and which is configured to: limit the movements of the chassis (40) in a forward direction, opposite to the rear direction, when the chassis (40) is in the mounting position, and authorize the movements of the chassis (40) according to the rear direction towards the stopping portion (120), until the chassis (40) is in the mounting position.
2. Dispositif de positionnement (100) selon la revendication 1 , dans lequel l’organe anti-retour comprend une plaquette (140) montée basculante par rapport à l’équerre (102), la plaquette (140) étant mobile, selon un mouvement de déblocage (R140), entre : une position de butée, dans laquelle la plaquette (140) est agencée en regard de la portion d’arrêt (120) et à distance de la portion d’arrêt (120), la plaquette (140) en position de butée étant configurée pour limiter les mouvements du châssis (40) dans la direction avant lorsque le châssis (40) est en position de montage, et une position relevée, dans laquelle la plaquette (140) n’empêche pas les mouvements du châssis (40) selon la direction avant. 2. Positioning device (100) according to claim 1, in which the anti-return member comprises a plate (140) tiltably mounted relative to the bracket (102), the plate (140) being movable, in a movement release (R140), between: a stop position, in which the plate (140) is arranged opposite the stop portion (120) and at a distance from the stop portion (120), the plate (140 ) in the stop position being configured to limit movements of the chassis (40) in the forward direction when the chassis (40) is in the mounting position, and a raised position, in which the plate (140) does not prevent movements of the chassis (40) in the front direction.
3. Dispositif de positionnement (100) selon la revendication 2, dans lequel la plaquette (140) tend à passer de sa position relevée à sa position de butée par gravité. 3. Positioning device (100) according to claim 2, wherein the plate (140) tends to move from its raised position to its stop position by gravity.
4. Dispositif de positionnement (100) selon la revendication 2, dans lequel le dispositif de positionnement (100) comprend un organe de rappel, qui tend à repousser la plaquette (140) de sa position relevée vers sa position de butée. 4. Positioning device (100) according to claim 2, wherein the positioning device (100) comprises a return member, which tends to push the plate (140) from its raised position towards its stop position.
5. Dispositif de positionnement (100) selon l’une quelconque des revendications 2 à 4, dans lequel : la portion d’attache (106) s’étend selon un plan moyen (P106) et est configurée pour être fixée au cadre haut (24) au moyen d’organes de fixation (1 10), par exemple des vis, la plaquette (140) comprend une partie de fixation (144), qui est assemblée à la portion d’attache (104) de manière que mouvement de déblocage (R140) est un mouvement de rotation de la plaquette (140) par rapport à la portion de fixation (106), autour d’un axe de déblocage (A140) orthogonal au plan moyen (P106), et la partie de fixation (144) comprend une zone d’appui (148), configurée pour venir en appui sur les organes de fixation (110) lorsque la plaquette (140) est en position de blocage. 5. Positioning device (100) according to any one of claims 2 to 4, in which: the attachment portion (106) extends along a mean plane (P106) and is configured to be fixed to the high frame ( 24) by means of fixing members (1 10), for example screws, the plate (140) comprises a fixing part (144), which is assembled to the attachment portion (104) so that movement of unlocking (R140) is a rotational movement of the plate (140) relative to the fixing portion (106), around an unlocking axis (A140) orthogonal to the mean plane (P106), and the fixing part ( 144) comprises a support zone (148), configured to come to bear on the fixing members (110) when the plate (140) is in the locking position.
6. Dispositif de positionnement (100) selon l’une quelconque des revendications 2 à 5, dans lequel : la plaquette (140) comprend une partie de butée (146), qui est agencée de manière à limiter les mouvements du châssis (40) dans la direction avant lorsque le châssis (40) est en position de montage, la partie de butée (146) est en appui contre l’équerre (102) lorsque la plaquette (140) est en position relevée. 6. Positioning device (100) according to any one of claims 2 to 5, in which: the plate (140) comprises a stop part (146), which is arranged so as to limit the movements of the chassis (40) in the forward direction when the chassis (40) is in the mounting position, the stop part (146) rests against the bracket (102) when the plate (140) is in the raised position.
7. Armoire électrique (10), comprenant une armature (20) délimitant un volume interne (V20) de l’armoire électrique (10) et un châssis (40), configuré pour recevoir des équipements électriques, dans laquelle le châssis (40) est maintenu dans le volume interne (V20) par au moins un dispositif de positionnement (100) selon l’une quelconque des revendications précédentes. 7. Electrical cabinet (10), comprising a frame (20) delimiting an internal volume (V20) of the electrical cabinet (10) and a frame (40), configured to receive electrical equipment, in which the frame (40) is held in the internal volume (V20) by at least one positioning device (100) according to any one of the preceding claims.
8. Procédé de montage d’une armoire électrique (10) selon la revendication 7, le procédé de montage comprenant les étapes successives suivantes : a) déplacer le châssis (40), selon la direction arrière, vers la portion d’arrêt (120) de chaque dispositif de positionnement (100), jusqu’à ce que le châssis (40) soit en position de montage, puis b) mettre en œuvre chaque organe anti-retour, de manière à maintenir le châssis (40) en position de montage. 8. Method of assembling an electrical cabinet (10) according to claim 7, the assembly method comprising the following successive steps: a) moving the frame (40), in the rearward direction, towards the stop portion (120 ) of each positioning device (100), until the chassis (40) is in the mounting position, then b) implement each anti-return member, so as to maintain the chassis (40) in the mounting position. assembly.
9. Procédé de montage d’une armoire électrique (10) selon la revendication 8, dans lequel : chaque dispositif de positionnement (100) est selon la revendication 3, à l’étape a), le châssis (40) repousse la plaquette (140) de sa position de blocage vers sa position relevée, et à l’étape b), la plaquette (140) revient dans sa position de butée par gravité. 9. Method of mounting an electrical cabinet (10) according to claim 8, in which: each positioning device (100) is according to claim 3, in step a), the chassis (40) pushes the plate ( 140) from its blocking position to its raised position, and in step b), the plate (140) returns to its stop position by gravity.
PCT/EP2023/061234 2022-04-29 2023-04-28 Device for positioning a frame of an electrical cabinet and associated electrical cabinet WO2023209147A1 (en)

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FRFR2204069 2022-04-29
FR2204069A FR3135172A1 (en) 2022-04-29 2022-04-29 Device for positioning an electrical cabinet frame, and associated electrical cabinet

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118106754A (en) * 2024-04-30 2024-05-31 河南康源电力工程有限公司 Automatic positioning and mounting device for electrical engineering

Citations (3)

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Publication number Priority date Publication date Assignee Title
DE1465775A1 (en) 1964-03-17 1969-11-13 Kloeckner Moeller Elek Zitaets switch cabinet
DE9307113U1 (en) 1993-05-11 1993-08-26 Häwa Programmgehäuse & Komponenten GmbH & Co KG, 88489 Wain Control cabinet with mounting plate
EP0901207A1 (en) 1997-08-28 1999-03-10 Rittal-Werk Rudolf Loh GmbH & Co. KG Switchgear cabinet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1465775A1 (en) 1964-03-17 1969-11-13 Kloeckner Moeller Elek Zitaets switch cabinet
DE9307113U1 (en) 1993-05-11 1993-08-26 Häwa Programmgehäuse & Komponenten GmbH & Co KG, 88489 Wain Control cabinet with mounting plate
EP0901207A1 (en) 1997-08-28 1999-03-10 Rittal-Werk Rudolf Loh GmbH & Co. KG Switchgear cabinet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118106754A (en) * 2024-04-30 2024-05-31 河南康源电力工程有限公司 Automatic positioning and mounting device for electrical engineering

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