lug-cap assembly and associated motorization system

Abstract

Terminal-cap assembly and associated motorization system. Terminal-cap assembly comprising a terminal (2), with a connection termination (22) to a leg of an electrical component, and a cap (5) with: an insertion opening (55) for the terminal (2), a front locking stop (66), to prevent the removal of the terminal (2), when the terminal (2) is in a nominal orientation, and a connection end (52), receiving the connection termination (22) when the terminal (2) is in the nominal orientation.To reduce the risk of incorrect assembly, the cap (5) includes a rear retaining stop (72) so that, when the terminal (2) is oriented incorrectly, the terminal (2) abuts against the rear retaining stop (72) and is thus held back from the connection end (52). The rear retaining stop (72) is positioned to allow passage of the rear locking stop (34) when the terminal (2) is inserted into the cap (5) in the nominal orientation. See Figure 4 for abbreviations.

Description

Title of the invention: Lug-cap assembly and associated motorization system

[0001] The present invention relates to a lug-cap assembly and a motorization system for operating a closing, shading or sun protection device comprising such a lug-cap assembly.

[0002] It is known to use a lug to connect a conductive cable to a rigid leg of an electrical component. One end of the lug is crimped to the conductive cable, and the lug forms, at its other end, a connector into which the component leg can be reversibly inserted. EP765003A1 discloses an example of a known lug, obtained by folding a cut metal sheet.

[0003] This type of known terminal can be used, in particular, in the context of a closing, shading, or solar protection device, as described in EP1487076A1. In this example, a single-phase asynchronous motor drives a load, such as a movable and / or roll-up screen of the type of blind, roller shutter, or sliding door. The motor is connected to a single-phase power supply with an interposed phase-shifting capacitor. To ensure this connection, each leg of the capacitor can be inserted into a respective terminal, each terminal being further crimped with two conductor wires, one connecting the terminal to one of the two windings of the motor, the other connecting the terminal to the phase of the single-phase power supply.

[0004] For this particular application, or others, where the electrical quantities involved may be relatively high, for example due to the electrical energy that may be stored in the capacitor, it is desirable that the terminal be electrically insulated from the outside to prevent any accidental electrical contact with another component of the device or with a person. To this end, it is known to equip the terminal with an insulating cap, which surrounds the terminal to provide electrical insulation.

[0005] Inside, the insulating cap includes a flexible blade so that, when the terminal is correctly inserted into the cap, the flexible blade engages with at least one raised tooth on the terminal, preventing the terminal from being pulled out of the cap. Once the terminal is engaged, the cap is permanently fixed to the terminal because the flexible blade inside the terminal cannot be reached from the outside. In some cases, the permanent nature of this fixing can be considered a first drawback. Another drawback is that the cap allows for incorrect terminal assembly, where the terminal is received in the cap with the wrong orientation. Upside down. If the cap is accidentally mounted this way, the terminal's teeth will face away from the flexible blade, preventing the blade from engaging with the terminal's teeth and thus failing to secure the cap to the terminal. If the terminal is pushed far enough into the cap with this incorrect orientation, it may become pinched between the flexible blade and the opposite side of the cap. This could lead the technician assembling the terminal and cap to believe they have performed a correct assembly, when in fact the cap is not properly secured. Furthermore, the incorrect terminal positioning may cause the cap to partially obstruct the terminal's contact with the component leg. The terminal could then unexpectedly detach from the component leg, leaving the leg exposed.Since the cap is not secured to the terminal, it is likely to detach itself, leaving the terminal exposed even though it is electrically conductive and connected to the power supply via the conductor cable. If the component is a capacitor, this exposed lead can cause electrical problems due to residual charge stored within the capacitor.

[0006] The invention aims to remedy the drawbacks of the prior art by proposing a new lug-cap assembly that reduces the risk of incorrect assembly.

[0007] The invention relates to a terminal-cap assembly comprising a terminal, which is electrically conductive and includes: a base, configured to be permanently attached to at least one conductive cable, and a connection termination, integral with the base and configured to be coupled to a leg of an electrical component to electrically connect the leg to said at least one conductive cable via the terminal. The terminal-cap assembly includes a cap, which is electrically insulating and includes: an insertion opening, the terminal being configured to be inserted into the cap, in a specific insertion direction, by first passing the connection termination through the insertion opening; a front locking stop, which bears against a rear locking stop belonging to the terminal, in the same insertion direction, when the terminal is positioned in the cap in a nominal orientation.to prevent the lug from being withdrawn from the cap via the insertion opening, and a connection end, which is disposed in the insertion direction relative to the insertion opening, which receives the connection termination when the lug is positioned in the cap in the nominal orientation and which has a connection opening, intended to be passed through by the leg of the electrical component when the connection termination is connected to said leg, while the lug is positioned in the cap in the nominal orientation.

[0008] According to the invention, the cap includes a rear retaining stop separate from the front locking stop, the rear retaining stop being disposed between the insertion opening and the connection opening so that, when the connection termination of the terminal is inserted into the insertion opening of the cap while the terminal is oriented in an incorrect orientation, the terminal comes to rest in the direction of insertion against the rear retaining stop and is thus held back from the connection end, the rear retaining stop being disposed to allow passage of the rear locking stop when the terminal is inserted into the cap in the nominal orientation.

[0009] One idea underlying the invention is that, while the insertion opening is advantageously large enough to allow the base to pass through when the terminal is in its nominal orientation and thus incidentally permits the terminal to be inserted in the incorrect orientation, the terminal inserted in the incorrect orientation is retained by the rear retaining stop, preventing further insertion. In other words, when the terminal is against the rear retaining stop, it is held back from the connection end, meaning that the insertion of the terminal into the cap is clearly incomplete to the technician. In particular, it can be provided that the terminal, for at least part of its base, protrudes from the cap through the insertion opening, which is easily visible to the technician.For the purposes of the invention, the incorrect orientation is preferably an upside-down orientation.

[0010] Furthermore, incomplete insertion of the terminal into the cap, while the terminal is in the incorrect orientation, means that the cap does not retain the terminal. Preferably, if the front locking stop is formed by a deformable retaining blade, the rear retaining stop prevents the terminal from being inserted in the incorrect orientation until the terminal is firmly pinched within the cap by the retaining blade. Since the terminal is not retained or is pinched too weakly, the technician can easily determine that the terminal is mounted in the incorrect orientation.

[0011] Conversely, when the terminal is inserted into the cap in its nominal orientation, the terminal advantageously does not come to rest against the rear retaining stop. At the very least, the rear retaining stop allows the terminal to be inserted, even in its nominal orientation, until the rear locking stop comes to rest against the front locking stop to prevent the terminal from being withdrawn.

[0012] Preferably, when the removal of the terminal is prevented by the front locking stop being brought against the rear locking stop, the terminal is fully received in the cap. Preferably, when the terminal is against the stop in the direction of the insertion direction against the rear retaining stop, the base protrudes out of the cap through the insertion opening.

[0013] Preferably, the rear retaining stop is formed on a tubular wall of the cap.

[0014] Preferably, the cap includes two retaining ribs, which form the rear retaining stop, the two retaining ribs being arranged longitudinally between the connection end and the inlet opening and transversely on either side of the inlet opening.

[0015] Preferably, the cap includes a bottom wall connecting the insertion opening to the connection opening. Preferably, the lug includes at least one tooth projecting transversely from the connection end and forming the rear locking stop. Preferably, when the lug is positioned in the cap with the incorrect orientation, the lug rests against the bottom wall by means of said at least one tooth, the lug thus being held in an oblique orientation relative to the insertion direction, around a lateral axis perpendicular to the insertion direction.

[0016] Preferably, the terminal comprises a back that connects the connection termination to the base and is transversely opposite the rear locking stop. Preferably, the terminal is guided by sliding along the insertion direction by the back sliding along the base wall when the terminal is inserted into the cap in the nominal orientation. Preferably, the terminal comes to rest against the rear retaining stop via the back when the terminal is positioned in the cap in the incorrect orientation.

[0017] Preferably, the cap includes an intermediate opening, disposed between the insertion opening and the connection opening and opening into the inside of the cap. Preferably, the cap includes a retaining blade, which is disposed in the intermediate opening, one free end of which forms the front locking stop, the retaining blade being elastically deformable, between: a locking configuration, where the front locking stop is positioned to bear against the rear locking stop to prevent the lug from being removed, and an unlocking configuration, where the front locking stop does not prevent the lug from being removed from the cap, even when the lug is positioned in the cap in the nominal orientation.Preferably, the retaining blade is configured so that it can be moved to the unlocked position from outside the cap via the intermediate opening, when the retaining blade is in the locked position, and return to the locked position by elasticity when the retaining blade is in the unlocked position.

[0018] Preferably, the cap is configured so that the front locking stop can be moved to the unlocked position from the locked position by moving the front locking stop away from the lug using a tool.

[0019] Preferably, the intermediate opening is delimited by at least one edge belonging to the cap, said at least one edge forming a rib which is raised towards the outside of the cap.

[0020] The invention also relates to a motorization system for operating a closing, shading or sun protection device, comprising: the lug-cap assembly as defined above, the lug being positioned in the cap according to the nominal orientation; an electric motor; a conductor cable, electrically connecting the electric motor and the lug, being permanently attached to the base of the lug; and an electrical component, consisting of a capacitor and having a leg coupled with the connection termination of the lug, through the connection opening of the cap.

[0021] [Fig-1] Fig. 1 is an exploded perspective view of a pod-cap assembly, with a lug and a cap shown separately.

[0022] [Fig.2] The [Fig.2] is a longitudinal section of the [Fig.l], along plane ILII.

[0023] [Fig.3] [Fig.3] is a cross-section similar to that of [Fig.2], where the lug is received in the cap according to a nominal orientation.

[0024] [Fig.4] The [Fig.4] is a cross-section similar to that of Figures 2 and 3, where the lug is received in the cap following an incorrect orientation.

[0025] [Fig.5] Fig.5 is a perspective view of the cap of the preceding figures, from another angle.

[0026] [Fig.6] Fig.6 is an electrical diagram of a motorization system, operating a closing, shading or sun protection device and comprising two lug-cap assemblies conforming to those of figures 1 to 5.

[0027] Figure 6 schematically shows a motorization system, including an electric motor M, a capacitor C, two switches rm and rd, a phase pole, and a neutral pole from a single-phase power supply. The single-phase power supply is advantageously low voltage, for example, between 100V and 400V. The motor M is, for example, a single-phase asynchronous motor, which includes two windings W1 and W2. When the motor M rotates, it mechanically actuates a closing, shading, or sun protection device D, comprising a retractable or movable screen, such as a roller blind, a roller shutter, a sliding shutter, a curtain, a sliding door, etc. The capacitor C is advantageously a phase-shifting capacitor.

[0028] A first pole of switches rm and rd is connected to the phase pole L. A second pole of switch rm is connected to a first terminal 2 via an electrically conductive cable 13. The first terminal 2 is connected to a leg 11 of capacitor C. The first terminal 2 is connected to a first terminal of winding W1 via a conductive cable 14. A second pole of winding W1 is connected to the neutral pole N. A second pole of switch rd is connected to a second terminal 2 via an electrically conductive cable 15. The second terminal 2 is connected to a leg 12 of capacitor C. The second terminal 2 is connected to a first terminal of winding W2 via a conductive cable 16. A second pole of winding W2 is connected to the neutral pole N.In other words, winding W1 and pin 11 of capacitor C are connected to pole L via switch rm, while winding W2 and pin 12 of capacitor C are connected to pole L via switch rd.

[0029] To rotate the motor M in a first direction, for example, the upward direction of device D, switch rm is closed and switch rd is opened. Windings W1 and W2 are then supplied with electrical energy by the phase pole L, through switch rm and conductor 13. Winding W2 receives current out of phase with respect to winding W1 because the current flowing through winding W2 passes through the phase-shifting capacitor C. To rotate the motor M in the opposite direction, for example, the downward direction of device D, switch rd is closed and switch rm is opened. Windings W1 and W2 are then supplied with electrical energy by the phase pole L, through switch rd and conductor 15. Winding W1 receives current out of phase with respect to winding W2 because the current flowing through winding W1 passes through the phase-shifting capacitor C.

[0030] EP1487076A1 describes another motorization system suitable for the invention, including in particular a drive motor corresponding to the motor M described here and a permanent capacitor corresponding to the capacitor C described here.

[0031] Each conductor cable 13, 14, 15 and 16 comprises an electrically conductive core, for example single-strand or multi-strand braided, and an electrically insulating tubular sheath, enveloping the core to electrically insulate it from the outside.

[0032] Each terminal 2 shown in [Fig. 6] is connected to one of the legs of capacitor C, to electrically connect this leg to two electrically conductive cables, one connected to the phase pole L, the other connected to the motor M. Each terminal 2 belongs to a terminal-cap assembly illustrated in detail in Figures 1 to 5, which includes, in addition to the lug 2, a cap 5 shown alone in [Fig. 5]. Here, the lug-cap assembly

[0033] The lug 2 is electrically conductive, for example by being made entirely of an electrically conductive material, for example a conductive metal such as a copper-based alloy. The lug 2 defines a longitudinal direction X2 and two transverse directions, namely a lateral direction Y2 and a vertical direction Z2. The directions X2, Y2, and Z2 are perpendicular to each other and fixed with respect to the lug 2.

[0034] As shown in Figures 1 to 4, the lug 2 comprises a base 21 and a connection termination 22. The termination 22 is arranged in the direction X2 relative to the base 21. Preferably, the lug 2 is made entirely from a single sheet of metal, which is cut and definitively deformed by folding to form both the base 21 and the connection termination 22. An example of a lug obtained according to this process is described in EP765003A1.

[0035] The base 21 is configured to be permanently attached, i.e., in a non-removable manner, to two conductor cables, here for example cables 13 and 14, symbolized by dashed lines. To this end, for each cable 13 and 14 to be attached, the base 21 preferably comprises a clip 23, forming a tunnel or clamp parallel to the direction X2, and a clip 24, forming another tunnel or clamp, coaxial with that of the clip 23. The ends of the received cables are oriented parallel to the direction X2, and directed in the direction X2. The clip 23 is arranged in the direction X2 relative to the clip 24, i.e., between the termination 22 and the clip 24. The two clips 23 are advantageously distributed laterally side by side along the direction Y2. The two fasteners 24 are advantageously distributed laterally side by side along the direction Y2.

[0036] The end of each conductor cable includes a stripped end of the core, which is received in the clip 23. The clip is then folded over the stripped end of the core, so as to crimp the stripped core to the clip 23, thus ensuring both the electrical connection and the permanent retention of the cable relative to the lug 2. The end of each cable also includes a sheath end, which is set back from the stripped end of the core. This sheath end is received in the clip 24, which is folded around the sheath end, thereby crimping the sheath end to the clip 24.

[0037] The termination 22 is integral with the base 21. For this purpose, the lug 2 preferably comprises a back 25, which connects the connecting termination 22 to the base 21. The back 25 advantageously forms an elongated wall orthogonal to the direction Z2. In other words, the back is parallel to the direction X2. Preferably, a front end of the back 25 belongs to the connecting termination 22. Preferably, the fasteners 23 and 24 folded protrude from the back 25 along the direction Z2. A rear end of the back 25 and the fasteners 23 and 24 here constitute the base 21 of the lug 2.

[0038] Termination 22 is configured to be coupled with one of the legs of capacitor C, for example leg 11, to electrically connect leg 11 to cables 13 and 14 via lug 2. Leg 11 is shown schematically in [Fig. 1] with dashed lines. In the example shown, leg 11 is generally flat and rectangular with beveled corners. However, in practice, leg 11 may have a different shape.

[0039] In this example, pin 11 connected to terminal 2 belongs to capacitor C, but terminal 2 is suitable for connecting to the pin of an electrical component other than a capacitor, to connect that electrical component to one or more conductors, each conductor being connected to any desired electrical device, which may be different from the motor and switch in this example. The term "electrical component" includes electronic components.

[0040] The coupling of the termination 22 with the leg 11 is preferably reversible, in the sense that the termination 22 is configured to allow a technician to remove the leg 11 from the lug 2, to disconnect the lug 2 from the capacitor C if necessary.

[0041] The termination 22 advantageously forms a female end, receiving the leg 11 within it for coupling, that is to say, allowing the leg 11 to be inserted into the termination 22, preferably in the opposite direction to X2. The leg preferably connects to a plate-like shape, which, when received in the termination 22, extends along a plane orthogonal to the direction Z2. Thus received, the leg 11 is oriented parallel to the direction X2, but in the opposite direction to X2.

[0042] In order for the leg 11 to be inserted into the termination 22, the termination 22 advantageously comprises, in addition to the front end of the back 25, two longitudinal edges 26 and two wings 27. The longitudinal edges 26 are distributed along the direction Y2, on either side of the back 25 and the wings 27. Each longitudinal edge 26 projects from the back 25 along the direction Z22. Each wing 27 projects from one of the longitudinal edges 26 towards the other wing 27. Each wing 27 is thus connected to the back 25 via one of the edges 26. The pair of wings 27 is located away from the back 25, along the direction Z2. When leg 11 is coupled with termination 22, the leg is received between the edges 26 along the Y2 direction, and between the back 25 and the wings 27 along the Z2 direction. Preferably, leg 11 is slightly pinched, elastically, between the back 25 and the wings 27, to be held inserted into termination 22.For this purpose, as can be seen in [Fig. 1], each wing 27 behaves respectively, for example, like a flexible blade.

[0043] With the leg 11 received in the termination 22, it is electrically connected to the conductors 13 and 14 attached to the base 21, via the lug 2.

[0044] The lug 2 advantageously comprises two teeth 31 and 32. Preferably, tooth 31 is formed at the rear of one of the wings 27 and tooth 32 is formed at the rear of the other wing 27. More generally, teeth 31 and 32 are advantageously formed at the rear of the connecting termination 22. Teeth 31 and 32 are advantageously arranged transversely opposite the back 25, namely in the direction Z2 relative to the back 25. Each tooth 31 and 32 protrudes transversely from the connecting termination 22, opposite the back 25. In other words, in the present example, teeth 31 and 32 protrude along the direction Z2. Thus, each tooth 31 and 32 extends beyond the connecting termination 22 in the direction Z2.Preferably, along the Z2 direction, the teeth 31 and 32 do not protrude from the base 21, preferentially ending either substantially at the same height as the fasteners 23, or slightly below the fasteners 23. The teeth 31 and 32 form respectively, on their face turned in the opposite direction to the X2 direction, a rear locking stop 33 and a rear locking stop 34. In other words, the stops 33 and 34 are constituted by the free ends of the teeth 31 and 32 respectively.

[0045] The cap 5 is electrically insulating, for example by being made entirely of an electrically insulating material such as a polymer plastic. Preferably, the cap 5 is produced by an injection molding operation of polymer plastic. The cap 5 is preferably made of a single piece, formed in one piece.

[0046] The cap 5 defines a longitudinal direction X5, referred to as the "introduction direction," and two transverse directions, namely a lateral direction Y5 and a height direction Z5. The directions X5, Y5, and Z5 are perpendicular to each other and fixed with respect to the cap 5. Unless otherwise specified, terms such as "longitudinal," "front," and "rear" refer to the direction X5, terms such as "transverse" refer to the directions Y5 and Z5, the term "lateral" refers to the direction Y5, and the term "height" refers to the direction Z5.

[0047] The cap 5 has a tubular wall 51, which has a general tubular shape along the direction X5 and defines an internal volume of the cap 5. The tubular wall 51 forms a connecting end 52, which is a front longitudinal end, and a rear end 53, the connecting end 52 being arranged along the direction X5 relative to the rear end 53.

[0048] The cap 5 is configured to receive the lug 2 inside the tubular wall 51, i.e., in the internal volume, with the lug 2 positioned in the cap 5 in a nominal orientation shown in [Fig. 3]. Alternatively, the lug 2 positioned in an incorrect orientation in the cap is shown in [Fig.4]. For normal use of the cap 5, the terminal 2 is expected to be received in the cap 5 in the nominal orientation.

[0049] The tubular wall 51 advantageously comprises a bottom wall 56, which connects the ends 52 and 53. The front of the wall 56 forms part of the end 52 and the rear of the wall 56 forms part of the end 53. The bottom wall 56 is substantially flat and extends perpendicularly to the direction Z5.

[0050] The tubular wall 51 advantageously comprises a side wall 57 and a side wall 58, which connect the ends 52 and 53. The front of the walls 57 and 58 form part of the end 52, and the rear of the walls 57 and 58 form part of the end 53. The walls 57 and 58 are arranged on either side of the wall 56 along the Y5 direction and project from the wall 56 along the Z5 direction. In other words, the walls 57 and 58 are distributed opposite each other along the Y5 direction. The walls 57 and 58 are substantially flat and extend perpendicularly to the Y5 direction.

[0051] The tubular wall 51 advantageously comprises a front upper wall 59 and a rear upper wall 60. The upper wall 59 connects the walls 57 and 58 at the connecting end 52, and thus forms part of the connecting end 52. The upper wall 59 extends at a distance from the wall 56 along the direction Z5. Preferably, the wall 59 extends in a plane perpendicular to the direction Z5. The upper wall 60 connects the walls 57 and 58 at the rear end 53 and thus forms part of the rear end 53. The upper wall 60 extends at a distance from the wall 56 along the direction Z5. Preferably, the wall 60 extends in a plane perpendicular to the direction Z5. Preferably, the wall 60 is further from the wall 56 than the wall 59, along the direction Z5.Thus, the connection termination 22 can be received within the end 52, between the walls 56 and 59, but the end 52 is too narrow to receive the base 21. The distance between the wall 60 and the wall 56 is, on the other hand, sufficient to allow the termination 22 to pass through when the lug 2 is inserted into the cap, but also to receive the base 21 when the lug 2 is positioned in the nominal orientation.

[0052] At the connection end 52, the cap 5 defines an opening 54, called the "connection opening", which opens into the inner volume of the cap 5 and outwards along the direction X5. More precisely, the contour of the connection opening 54 is formed by the front of the walls 56, 57, 58 and 59. The opening 54 preferably has a notch shape, flattened along the direction Z5, corresponding to the shape of the tab 11, to allow the tab 11 to pass through the opening 54 in order to be received in the inner volume of the cap 5.

[0053] At the rear end 53, the cap 5 defines an opening 55, called the "entry opening," which leads into the interior volume of the cap 5 and outwards in the opposite direction to X5. More precisely, the outline of the opening is formed by the rear of the walls 56, 57, 58, and 60. Each wall 56, 57, and 58 thus connects the openings 54 and 55. The opening 55 is preferably more open along the Z5 direction than the opening 54, so that the terminal 2 can be inserted into the interior volume of the cap 5 via the opening 55, particularly fully, when the terminal 2 is in its nominal orientation.

[0054] Preferably, the cap 5 defines an opening 61, referred to as the "intermediate opening". Preferably, the cap 5 does not have any openings other than the openings 54, 55, and 61. At the front, the opening 61 is defined by a rear transverse edge 62 belonging to the wall 59. Laterally, the opening 61 is defined by a longitudinal edge 63 belonging to the wall 57 and a longitudinal edge 64 belonging to the wall 58. In other words, the opening 61 is located between the openings 54 and 55, along the X5 direction, and opposite the wall 56, along the Z5 direction. At the rear, the opening 61 is delimited by the wall 60. The edges 62, 63 and 64 are advantageously projecting along the direction Z5, so as to protrude, along the direction Z5, beyond the wall 59. In other words, each edge 62, 63 and 64 respectively forms a raised or projecting rib along the direction Z5, that is to say towards the outside of the cap 5.The fact that these edges 62, 63 and 64 are raised in this way reduces the risk of accidental introduction of an object or a technician's finger into the inner volume of the cap 5, thus ensuring electrical insulation when the lug 2 is received within the cap 5.

[0055] The cap 5 preferably comprises a retaining blade 65. The retaining blade 65 is disposed in the opening 61, i.e., is framed by the opening 61. Preferably, the blade 65 is attached to the tubular wall 51 via the wall 60, at a rear edge of the opening 61. As more clearly seen in [Fig. 2], the retaining blade preferably extends from the wall 60 in the direction X5, at an angle such that a free end of the blade 65 is disposed in the opposite direction to Z5 with respect to a base of the blade 65, through which the blade 65 is attached to the wall 60. The free end of the blade forms a front locking stop 66, which is rotated in the direction X5. Preferably, the stop 66 of the blade 65 is located inside the opening 61, near the edge 62. The stop 66 is distant from the bottom wall 56.The stop 66 is positioned between the walls 57 and 58, preferably halfway between them.

[0056] The retaining blade 65 is elastically deformable from a rest configuration, shown in [Fig. 2], to a locking configuration, shown in dashed lines in [Fig. 3], or from the rest configuration to a The unlocking configuration is shown partially in dotted lines in [Fig. 3]. In [Fig. 3], reference numeral 66 indicates the front locking stop when the blade 65 is in the resting configuration, reference numeral 66' indicates the front locking stop when the blade 65 is in the locked configuration, and reference numeral 66” indicates the front locking stop when the blade 65 is in the unlocking configuration. When switching from the resting to the unlocking configuration, the front locking stop 66 is moved, in particular, along the Z5 direction; that is, it is lifted outward from the cap 5 through the opening 61. This prevents the blade 65 from being accidentally put into the unlocking configuration, as pressing on the blade 65 from the outside, in the opposite direction to Z5, does not put the blade 65 into the unlocking configuration.In other words, the stop 66 is moved into its unlocked position away from the wall 56, notably by means of an external tool, such as a screwdriver or other thin tool. When the lug 2 is received in the cap 5, the stop is held in the locked position by the lug 2. In this example, where the resting position is distinct from the locking position, due to elasticity, the blade 65 tends to return to the resting position when it is in the locked position. Preferably, in all configurations, the blade 65 remains positioned inside the opening 61 without protruding beyond the edges 62, 63, and 64.

[0057] Preferably, at least for the locking configuration, the distance between the retaining blade 65 and the edge 63, measured parallel to the direction Y5, is less than 1.2 mm. Preferably, the distance between the retaining blade 65 and the edge 64, measured parallel to the direction Y5, is less than 1.2 mm. Preferably, the distance between the retaining blade 65 and the edge 62, measured parallel to the direction X5, is less than 1.2 mm. This reduces the risk of accidentally introducing an object or a technician's finger into the interior of the cap 5, thus preventing an electrical hazard when the terminal 2 is received within the cap 5.

[0058] The cap 5 preferably comprises two ribs 67 and 68, referred to as "retaining ribs," visible in particular in [Fig. 5]. The ribs 67 and 68 are arranged inside the cap 5, between the openings 54 and 55. The ribs 67 and 68 are arranged here on either side of the blade 65. In other words, the stop 66 is preferably arranged between the ribs 67 and 68, along the Y5 direction. The rib 67 connects the base of the blade 65 or the wall 60 to the wall 57. The rib 68 connects the base of the blade 65 or the wall 60 to the wall 58. The ribs 67 and 68 thus define the opening 61, on the side of the base of the blade 65.

[0059] Preferably, on the inside of the cap 5, parallel to the direction Y5, the rib 67 projects from the wall 57 towards the rib 68 and the rib 68 projects from the wall 58 towards the rib 67. The ribs 67 and 68 are therefore arranged in a horseshoe shape. Preferably, ribs 67 and 68 are formed from wall 60 and extend into the interior of the cap 5, towards wall 56. Ribs 67 and 68 begin at the edge of wall 60 and terminate at their respective inner ends, preferably located at the height of wall 59. In other words, each rib 67 and 68 is interrupted so as not to reach wall 56. Each rib 67 and 68 forms, respectively, at its inner end, a rear retaining stop 71 and 72. These stops 71 and 72 are oriented in the opposite direction to X5 and are preferably located at the height of wall 59.Stops 71 and 72 are fixed, unlike stop 66, which is movable. Stops 71 and 72 are positioned between the insertion opening 55 and the connection opening 54, so that they do not prevent partial insertion of terminal 2 when terminal 2 is in the incorrect orientation. It should also be noted that stops 71 and 72 are distinct from stop 66; that is, they are formed by a structure, here ribs 67 and 68, which is separate from that forming stop 66, here blade 65.

[0060] To insert the terminal 2 into the cap 5, whether in the nominal or incorrect orientation, the connection termination 22 is inserted first, through the insertion opening 55, by moving the terminal 2 along the X5 direction and orienting the terminal 2 so that the X2 direction is in the same direction as the X5 direction. Once the connection termination 22 is received, the insertion of the terminal 2 continues until at least part of the base 21 also passes through the opening 55, at least when the terminal 2 is in the nominal orientation, and preferably also when the terminal is in the incorrect orientation. In any case, the terminal 2 is advantageously inserted while it is already permanently attached to the cables 13 and 14 via the base 21.To be inserted into the cap 5, the terminal 2 is moved along the X5 direction until it reaches a stop along the X5 direction against the stops 71 and 72, if the terminal 2 is in the incorrect orientation, or until it is captured in the cap 5, by cooperation of the blade 65 with the stops 33 and 34, if the terminal 2 is in the nominal orientation. In both cases, the terminal 2 is then partially or totally positioned in the cap 5.

[0061] Preferably, once the lug 2 is received in the cap 5, whether in the nominal or incorrect orientation, the lug 2 is disposed between, on the one hand, the bottom wall 56 and the stop 66, along the direction Z5 and, on the other hand, the bottom wall 56 and the stops 71 and 72. Preferably, the stops 71 and 72 are disposed laterally on either side of the teeth 31, 32 of the lug 2, in particular for the nominal orientation.

[0062] As shown in [Fig. 3], when the terminal 2 is received in the nominal orientation, the X2 and X5 directions have the same orientation and direction, the Y2 and Y5 directions have the same orientation and direction, and the Z2 and Z5 directions have the same orientation and direction. The connection termination 22 is received inside the connection end 52, and the base 21 is received inside the rear end 53. Advantageously, the terminal 2 is entirely received inside the cap 5 and is thus electrically isolated from the outside.

[0063] In more detail, in this configuration, the back 25 is advantageously received in a flat bearing against the bottom wall 56. The edges 26 are advantageously received in a lateral bearing between the walls 57 and 58, against said walls 57 and 58. The lug 2 is thus positioned in the cap 5 along the X2 and Y2 directions. The wings 27 extend along and near the wall 59. When the lug 2 is inserted in its nominal orientation, the back 25 slides along the wall 56 and the edges 26 slide along the walls 57 and 58, which guides the lug 2 in sliding along the X5 direction. Received in the nominal orientation, the connection termination 22 opens onto the connection opening 54. From then on, the leg 11 of the electrical component can be coupled with the connection termination 22 through the connection opening 54.In this configuration, preferably, the connection termination 22 comes to rest against the perimeter of the connection opening 54, following the direction X5.

[0064] While the lug 2 is received in its nominal orientation, the base 21 is fully received in the rear end 53, meaning that the base 21 also passed through the opening 55 during insertion. The distance between the walls 56 and 60 is sufficient to accommodate the base 21, which may be thicker than the connection termination 22. The ends of the cables 13 and 14 are also housed within the end 53, while the cables 13 and 14 are attached to the lug 2. The available space in the rear end 53 can accommodate the base of a larger lug, either to be attached to more conductor cables or to conductor cables with a larger cross-section. Preferably, as shown in [Fig.3], the base 21 is pushed in beyond the inlet opening 55, so as to be positioned in the direction X5 relative to the inlet opening 55.This helps to reduce the risk of electrical injury by preventing accidental contact, via opening 55, between a foreign object or a person and the terminal 2 thus received.

[0065] When the lug 2 is inserted into its nominal orientation, the lug 2 elastically deforms the blade 65 from its rest configuration to a passage configuration, which is beyond the locking configuration, notably via the teeth 31 and 32. The teeth 31 and 32 are located along the Y5 direction, at the level of the blade 65. The teeth 31 and 32 act on the blade 65. When they are positioned at the free end of the blade 65 along the X5 direction, once the stops 33 and 34, parallel to the X5 direction, have passed the front locking stop of the cap 5, the blade 65 returns to its elastically locked position. The front locking stop then comes to rest along the X2 direction behind the two rear locking stops 33 and 34 formed by the teeth 31 and 32. The lug 2 is then captured within the cap by the mechanical cooperation of the stops 33 and 34 with the stop 66, preventing the lug 2 from being withdrawn in the opposite direction to X5.

[0066] In the illustrated example, the lug 2 prevents the blade from returning to its resting position when the blade 65 is in the locked position and the lug 2 is positioned in its nominal orientation. Therefore, due to the elasticity of the blade 65, the free end of the blade 65 tends to exert slight pressure on the lug 2 in the direction Z5, so that the blade 65 tends to maintain the mechanical cooperation of the stop 66 with the stops 33 and 34.

[0067] In the present example, the locking configuration is distinct from the resting configuration. However, it can be foreseen that the resting and locking configurations will be the same.

[0068] While the lug 2 is thus received in its nominal orientation, it is possible to unlock the lug 2 by deforming the blade 65 to the unlocked configuration from outside the cap 5, via the opening 61. For example, a tool, such as a flathead screwdriver, can be inserted into the notch formed between the edge 62 and the free end of the blade 65 to lift the blade 65. In the unlocked configuration, the free end of the blade 65 is positioned where the stop 66'' is offset from the stops 33 and 34, advantageously along the Z5 direction. The stop 66'' then does not prevent the lug 2 from being withdrawn from the cap 5, via the opening 55, in the opposite direction to X5.

[0069] When the terminal 2 is inserted into the cap 5 in its nominal orientation, the terminal 2 does not abut against the stops 71 and 72. In particular, the connecting end 22 passes over the stops 71 and 72, between the wall 56 and the stops 71 and 72, parallel to the direction Z5, and the teeth 31 and 32 pass between the stops 71 and 72 along the direction Y5. Preferably, at least part of the base 21 can also pass over the stops 71 and 72, in that the base 21, being narrower than the end 22 along the direction Y5, passes between the stops 71 and 72. For example, once the terminal 2 is received in the cap 5, the fasteners 23 are positioned between the stops 71 and 72, along the direction Y5. More generally, the stops 71 and 72 are advantageously arranged so as not to oppose the insertion of the lug 2 into the cap 5, when the lug 2 is in the nominal orientation.

[0070] As shown in [Fig. 4], when the lug 2 is received in the cap 5 with the incorrect orientation, the directions X2 and X5 have the same direction, the directions Y2 and Y5 are opposite but have the same orientation, and the directions Z2 and Z5 are opposite. As shown in [Fig. 4], when the lug 2 is positioned in this way, the direction X2 is oriented obliquely with respect to the direction X5, and the direction Z2 is oriented obliquely with respect to the direction Z5. In other words, relative to the nominal orientation, the lug 2 has made a half-turn in roll about a longitudinal axis parallel to the direction X5, an oblique tilt in pitch about a lateral axis parallel to the direction Y5, and no yaw movement about a height axis parallel to the direction Z5.Preferably, around the lateral axis parallel to the Y5 direction, the X2 axis is inclined obliquely, at an angle between 5 and 10 degrees with respect to the X5 axis. Thus positioned obliquely, the base 21 is positioned higher along the Z5 direction than the termination 22.

[0071] When the terminal 2 is received in the cap 5 in the incorrect orientation, the rear locking stops 33 and 34 of the terminal 2 are positioned opposite the blade 65 within the cap 5. In other words, the stops 33 and 34 cannot cooperate with the stop 66 to retain the terminal 2 within the cap 5. Preferably, the insertion of the terminal 2 in the incorrect orientation is limited by the stops 33 and 34 being offset, relative to the stop 66, in the opposite direction to X5. In particular, the teeth 31 and 32 are directed towards the wall 56, and are even preferably bearing against the wall 56 in the opposite direction to Z5. More generally, in the incorrect orientation, the lug 2 cannot be fully inserted into the cap, is not retained within the cap 5 and can be freely removed by sliding in the opposite direction to X5.

[0072] When the lug 2 is received in the cap 5 in the incorrect orientation, the lug 2 is expected to bear against the wall 56, not through the back 25, but at least through the teeth 31 and 32. In addition to the teeth, the lug 2 bears against the wall 56 either through the termination 22 as illustrated in [Fig.4], in particular via the wings 27 or the edges 26, or through the base 21, in particular via the fasteners 23 or possibly through the end of the cable or cables attached thereto. Since the teeth 31 and 32 protrude from the termination 22 along the direction Z2 and / or the base 21 protrudes from the teeth 31 and 32 along the direction Z2, in particular the attachment 23, the bearing of the lug 2 against the wall 56 puts the lug 2 in the aforementioned oblique orientation with respect to the cap 5 and the insertion direction X5.It is then clearly visible to the technician that terminal 2 is in the incorrect orientation.

[0073] When the lug 2 is inserted in the incorrect orientation, it is not the back 25 that slides along the wall 56, but the wings 27, the teeth 31 and 32 and / or the fasteners 23. When the lug 2 is inserted in the incorrect orientation, the edges 26 slide along the walls 57 and 58, which guides the lug 2 to slide along the direction X5.

[0074] When the lug 2 is received in the cap 5 in the incorrect orientation, the back 25 is turned towards the walls 59 and 60, i.e., is turned away from the bottom wall 56. As shown in [Fig. 4], the lug 2 thus received in the cap 5 comes to rest against the stops 71 and 72 along the direction X5, preferably via the back 25. In practice, the back 25 advantageously comes to rest obliquely against the stops 71 and 72, in the direction X5, due to the oblique inclination of the back 25 with respect to the direction X5, around the lateral axis parallel to the direction Y5. More generally, with lug 2 bearing against stops 71 and 72, lug 2 is held by stops 71 and 72, so that it cannot be inserted further into cap 5.

[0075] By this stopping of the lug 2 in incorrect orientation, the lug 2 is held further back from the end 52 than when the lug 2 is received in the cap in nominal orientation.

[0076] In particular, the termination 22 does not reach the end 52, or is only partially inserted into the end 52, whereas it was fully inserted, or capable of being fully inserted, into the end 52 for the nominal orientation of the lug 2. Thus, it is not possible to connect the lug 11 with the termination 22, because the termination 22 is positioned too far back inside the cap 5 relative to the opening 54. Optionally, the stops 71 and 72 are arranged so that the lug 11 cannot even reach the termination 22 when the lug 11 is received in the cap 5 via the opening 54. Furthermore, it is optionally provided that the end 52, in particular the opening 54, as well as the termination 22, are shaped so that the lug 11 cannot connect with the termination 22 when the termination 22 is oriented obliquely in cap 5, which is the case when lug 2 is received in the incorrect orientation.Therefore, there is no risk that the technician could connect terminal 2 to capacitor C or the electrical component when terminal 2 is in the incorrect orientation within cap 5.

[0077] Advantageously, by this butting against the stops 71 and 72, the base 21 is only partially received in the cap 5 and protrudes partially or entirely from the cap 5 via the opening 55. Here, at least the fasteners 24 are held out of the cap 5, and preferably part of the fasteners 23. It is then clearly visible to the technician that the lug 2 is in the incorrect orientation since the base 21 protrudes, whereas, in the nominal orientation, the entire lug 2 is advantageously received in the cap 5.

[0078] Advantageously, when the lug 2 is received in the incorrect orientation against the stops 71 and 72, the blade 65 is supported against the back 25. In this position, the back 25 advantageously holds the blade 65 away from its rest configuration, in a deformed configuration, which may correspond, for example, to the unlocked configuration. As the blade 65 tends to return to its rest configuration by elasticity, it exerts a force against the back 25.

[0079] Each feature described above for one of the embodiments or variants can be implemented in the other embodiments and variants described above, as far as technically possible.

Claims

1. Demands lug-cap assembly including: • a lug (2), which is electrically conductive and which comprises: • a base (21), configured to be permanently attached to at least one conductive cable (13, 14), • a connection termination (22), integral with the base (21) and configured to be mated with a leg (11) of an electrical component (C) to electrically connect the leg (11) to said at least one conductive cable (13, 14) via the lug (2), and • a back (25) that connects the connection termination (22) to the base (21); and • a cap (5), which is electrically insulating and which comprises: • an insertion opening (55), the lug (2) being configured to be inserted into the cap (5), following an insertion direction (X5), by first passing the connection termination (22) through the insertion opening (55), • a front locking stop (66), which bears against a rear locking stop (33, 34) belonging to the terminal (2), along the insertion direction (X5), when the terminal (2) is positioned in the cap (5) in a nominal orientation, to prevent the terminal (2) from being withdrawn from the cap (5) via the insertion opening (55), the back (25) of the terminal (2) being transversely opposite the rear locking stop (33, 34), • a connection end (52), which is disposed in the insertion direction (X5) relative to the insertion opening (55), which receives the connection termination (22) when the lug (2) is positioned in the cap (5) in the nominal orientation and which has a connection opening (54), intended to be passed through by the leg (11) of the electrical component (C) when the connection termination (22) is connected to said leg (11), while the lug (2) is positioned in the cap (5) in the nominal orientation, a bottom wall (56), connecting the insertion opening (55) to the connection opening (54), the terminal (2) being guided in sliding along the insertion direction (X5) by sliding of the back (25) along the bottom wall (56), when the terminal (2) is inserted into the cap (5) in the nominal orientation, and a rear retaining stop (71, 72) separate from the front locking stop (66), the rear retaining stop (71, 72) being disposed between the insertion opening (55) and the connection opening (54) so ​​that, when the connection termination (22) of the terminal (2) is inserted into the insertion opening (55) of the cap (5) while the terminal (2) is oriented in an incorrect orientation, the terminal (2) comes to rest in the direction of the insertion (X5) against the rear retaining stop (71, 72) and thus be kept back from the connecting end (52), the rear retaining stop (71,72) being arranged to allow passage of the rear locking stop (33, 34) when the lug (2) is inserted into the cap (5) in the nominal orientation, characterized in that: • the lug (2) bears against the rear retaining stop (71, 72) via the back (25) when the lug (2) is positioned in the cap (5) in the incorrect orientation; • the lug (2) includes at least one tooth (31, 32), which projects transversely from the connecting end (52) and forms the rear locking stop (33, 34); and • when the lug (2) is positioned in the cap (5) in the incorrect orientation, the lug (2) bears against the bottom wall (56) via said at least one tooth (31, 32), the lug (2) thus being held in an oblique orientation with respect to the insertion direction (X5), around a lateral axis (Y5) perpendicular to the insertion direction (X5).

2. A lug-cap assembly according to claim 1, wherein: • when the removal of the lug (2) is prevented by the front locking stop (66) being brought against the rear locking stop (33, 34), the lug (2) is fully received in the cap (5); and • when the lug (2) is brought against the rear retaining stop (71, 72) in the direction of insertion (X5), the base (21) protrudes out of the cap (5) through the insertion opening (55).

3. Lug-cap assembly according to any one of the preceding claims, wherein the rear retaining stop (71, 72) is formed on a tubular wall (51) of the cap (5).

4. A lug-cap assembly according to any one of the preceding claims, wherein the cap (5) comprises two retaining ribs (67, 68), which form the rear retaining stop (71, 72), the two retaining ribs (67, 68) being arranged longitudinally between the connection end (52) and the inlet opening (55) and transversely on either side of the inlet opening (55).

5. Lug-cap assembly according to any one of the preceding claims, wherein: • the cap (5) includes an intermediate opening (61), disposed between the inlet opening (55) and the connection opening (54) and opening into the inside of the cap (5);• the cap (5) includes a retaining blade (65), which is disposed in the intermediate opening (61) of which a free end forms the front locking stop (66), the retaining blade (65) being elastically deformable, between: • a locking configuration, where the front locking stop (66) is positioned to bear against the rear locking stop (33, 34) to prevent the removal of the lug (2), and • an unlocking configuration, where the front locking stop (66) does not oppose the removal of the lug (2) from the cap (5), even when the lug (2) is positioned in the cap (5) in the nominal orientation;and • the retaining blade (65) is configured to: • be able to be put into unlocking configuration from outside the cap (5) via the intermediate opening (61), when the retaining blade (65) is in locking configuration, and • return to the locking configuration by elasticity when the retaining blade (65) is in unlocking configuration.;

6. Lug-cap assembly according to claim 5, wherein the cap (5) is configured so that the front locking stop (66) can be moved to the unlocked configuration from the locking configuration by moving the front locking stop (66) away from the lug using a tool.

7. A lug-cap assembly according to any one of claims 5 or 6, wherein the intermediate opening (61) is delimited by at least one edge (62, 63, 64) belonging to the cap (5), said at least one edge (62, 63, 64) forming a rib which is raised outwards from the cap (5).

8. A motorization system for operating a closing, shading or sun protection device (D), comprising: • the lug-cap assembly according to any one of the preceding claims, the lug (2) being positioned in the cap (5) in the nominal orientation; • an electric motor (M); • a conductor cable (14), electrically connecting the electric motor (M) and the lug (2), being permanently attached to the base (21) of the lug (2); and • an electrical component (C), consisting of a capacitor and having a leg (11) coupled with the connection termination (22) of the lug (2), through the connection opening (54) of the cap (5).

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