Electrical equipment mechanisms, associated electrical components and electrical equipment

Abstract

The invention relates to an electrical device mechanism (100) comprising an insulating base (110) having an outer surface (120), the base containing at least one electrical connection terminal and provided with at least one passage duct (114) leading to the electrical connection terminal, the passage duct being defined by an inner surface (114A) in an orifice (115) leading to the outer surface of the base, the base being intended to rest on a support plane (PS) situated behind the base. According to the invention, the outer surface of the base is arranged around the orifice so that the inner surface of the passage duct is partially visible when a user looks at the base from the front in a direction substantially perpendicular to the support plane.

Description

Technical Field

[0001] The present invention generally relates to the technical field of electrical equipment mechanisms.

[0002] The present invention particularly relates to an electrical equipment mechanism, which comprises an insulating base having an outer surface, the base containing (enclosing, enclosing) at least one electrical connection terminal and having at least one channel duct (accessible / approachable conveying path) leading to the electrical connection terminal, the channel duct being defined by an inner surface that leads to an opening in the outer surface of the base, the base being intended to be placed on a supporting plane located behind the base. Background Art

[0003] The electrical connection terminals are accessible through passage conduits in the insulating base, and wires can thus be inserted into the base and connected to the connection terminals.

[0004] In known electrical devices, the inlet opening of the channel duct is lateral. The channel duct extends substantially parallel to the support plane and opens into a plane substantially perpendicular to the support plane. When the device is in place - mounted in or on a wall - the support plane extends substantially parallel to the wall and the inlet opening in the channel duct remains invisible from the front surface of the electrical device towards the installer.

[0005] Therefore, when wiring the device mechanism, the mechanism needs to be removed from its housing because the entry aperture for the wires is not easily accessible and difficult to locate accurately. Summary of the invention

[0006] To remedy these deficiencies of the prior art, the present invention proposes a novel connection device for an electrical equipment mechanism, wherein the entry openings for the wires in the channel conduits of the terminals are visible on the front side of the electrical equipment, and wiring for the electrical equipment mechanism is allowed once the electrical equipment mechanism is installed in the housing.

[0007] More specifically, the present invention proposes a connection device for an electrical equipment mechanism as described in the introduction, wherein the outer surface of the base is arranged around the orifice so that when the user looks at the base from the front along a direction substantially perpendicular to the support plane, the inner surface of the channel duct is partially visible.

[0008] In this way, the installer can intuitively and accurately locate (recognize) the entrance of the channel conduit and insert the wires into the channel conduit without removing the electrical equipment mechanism from the housing (box, box) or wall on which it is mounted.

[0009] Other non-limiting and advantageous technical features of the connection device according to the invention are as follows:

[0010] - said outer surface of the base has, over at least a portion of the outer surface adjacent to said orifice, an inclination of between 5 and 85 degrees relative to said support plane;

[0011] - said portion of said outer surface comprises an inclined plane or is curved relative to said supporting plane;

[0012] - said channel conduit extends along a longitudinal axis forming a non-zero angle with said support plane;

[0013] - the longitudinal axis is inclined relative to the support plane at an angle between 5 and 20 degrees;

[0014] - said inner surface of the channel duct is visible over a length range of 1-5 mm of the rear portion of the contour of said orifice;

[0015] - The front part of the contour of the orifice extends perpendicularly to or overhangs (forms a flange thereof) a middle part of the contour of the orifice, the middle part being located between the front part and the rear part of the contour.

[0016] The invention also relates to an electrical assembly, which is used in an electrical device and comprises a mechanism as described above and a cover (decorative plate, panel) indicating the electrical function of the device.

[0017] The present invention also relates to an electrical device, comprising the electrical assembly as described above and a housing or an embedded frame at least partially accommodating the mechanism.

[0018] The invention relates to a sealed electrical device, wherein the cover seals the housing or the embedded frame for accommodating the mechanism in a sealed manner.

[0019] Finally, the invention relates to a switch, wherein the cover comprises a control button adapted to cooperate with the electrical device mechanism.

[0020] Of course, the different features, variants and embodiments of the invention can be associated with each other in various combinations, as long as they are not incompatible or mutually exclusive. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following description is given as a non-limiting example and is made with reference to the accompanying drawings, through which it will become clear what the invention consists of and how it can be implemented.

[0022] In the attached picture:

[0023] - Figure 1is a front perspective schematic diagram of a first embodiment of a dual electrical device mechanism according to the present invention mounted in a housing;

[0024] - Figure 2 yes Figure 1 A schematic front view of a dual electrical device mechanism;

[0025] - Figure 3 yes Figure 1 A schematic side view of a dual electrical device mechanism;

[0026] - Figure 4 yes Figure 2 The dual electrical device mechanism along Figure 2 Schematic diagram of the plane AA cut through;

[0027] - Figure 5 yes Figure 1 A front exploded perspective schematic diagram of a dual electrical device mechanism;

[0028] - Figure 6 is a front perspective schematic diagram of a second embodiment of a dual electrical device mechanism according to the present invention;

[0029] - Figure 7 yes Figure 6 A schematic front view of a dual electrical device mechanism;

[0030] - Figure 8 yes Figure 6 A schematic side view of a dual electrical device mechanism;

[0031] - Fig. 9 yes Figure 7 The dual electrical equipment mechanism along Figure 7 Schematic diagram of plane BB cut away. DETAILED DESCRIPTION

[0032] In the following description, by convention, the term "front" refers to the side of the electrical device facing the user when it is in the use position on the wall, and the term "rear" refers to the other opposite side of the electrical device, which faces the inside of the wall.

[0033] The figures show two different embodiments of an electrical device according to the invention.

[0034] As a premise, it should be noted that the same or similar elements of different embodiments of the present invention shown in each of the drawings will be marked with the same reference numerals and will not be described each time.

[0035] Figures 1 to 5 and Figures 6 to 9 Two possible embodiments of a dual electrical device arrangement 100; 200 according to the invention are shown.

[0036] The double mechanism comprises two mechanisms 100 ; 200 according to the invention.

[0037] Each electrical device mechanism according to the invention can be of any type and can be used for different types of electrical devices. More particularly, it is here a mechanism for an electrical switch actuated externally by a control button (not shown).

[0038] It can be a circuit breaker or a two-way switch.

[0039] The electrical device shown here comprises a housing 20 (see Figure 1 and 6 ). The housing 20 is intended to be attached to a wall in a protruding mounting manner. In a variant, the electrical device may also include a flush-mounted frame, which is intended to be attached to an electrical box embedded in a wall. It also includes a cover indicating the electrical function of the electrical device.

[0040] The electrical device is an electrical switch. The cover includes a control button (not shown) which is suitable for actuating the transmission member 126; 226 (see FIG. 226 ) of the electrical device mechanism 100; 200. Figure 1 , 2 , 5, 6 and 7).

[0041] The electrical equipment arrangement 100; 200 is connected to a power grid which supplies it with electricity.

[0042] Furthermore, advantageously, the electrical device shown in the drawings is a sealed switch, wherein a cover to which each control button belongs closes the housing 20 or mounting frame accommodating the respective electrical device mechanism 100; 200 in a sealed manner.

[0043] It is noteworthy that it is provided with a single base 110; 210 for both mechanisms 100; 200 (see Figure 1 , 2 , 6, 7). The base 110; 210 accommodates all electrical connection terminals 130 and receives two transmission members 126; 226 of the two mechanisms 100; 200 (see Figure 1 , 2 , 6, 7).

[0044] The base 110; 210 forms an insulating housing (encapsulation), which is made of, for example, molded plastic material.

[0045] The base 110; 210 is generally parallelepiped-shaped and has a front wall 111A; 211A and an opposite rear wall 111B; 211B (see Figure 3 , 4 , 8, 9). Side walls 111C, 111D; 211C, 211D connect the front wall and the rear wall (see Figure 5 and 8 ). The base 110; 210 is assembled from two parts: a front part 110A; 210A and a rear part 110B; 210B (see Figure 5 and 6 ).

[0046] The rear portion 110B of the base 110; 210; 210B includes a plurality of inner walls 112 (see Figure 5 ), which rises from the rear wall 111B; 211B toward the front wall 111A; 211A, and defines a cavity isolated from each other and suitable for receiving the electrical connection terminal 130 (see Figure 5 ).

[0047] Advantageously, the base 110; 210 here comprises six cavities isolated from one another for receiving three or six electrical connection terminals - depending on whether it is a single mechanism or a double mechanism. Advantageously, the base 110; 210 is thus identical to an electrical switch comprising one control button or two control buttons.

[0048] The electrical device mechanism 100; 200 is equipped with six electrical connection terminals 130 (see Figure 5 ): Three electrical connection terminals form a first circuit of a mechanism, and another three electrical connection terminals form a second circuit of another mechanism, which is independent of the first circuit.

[0049] The front part 110A; 210A of the base 110; 210 closes the rear part 110B; 210B at the front so as to constrain the conductive parts housed in the base 110; 210, in particular the electrical connection terminals 130 connected to the local power grid.

[0050] The front portion 110A of the base 110; 210; 210A also includes at least one channel conduit 114 that allows access to one of the electrical connection terminals 130 housed in the base 110; 210; 214 (see Figure 1 to 9). Preferably, the front portion 110A; 210A of the base 110; 210 comprises one or two passage ducts leading to the electrical connection terminals 130 housed in the base 110; 210.

[0051] Each channel conduit 114; 214 is defined by an inner surface 114A; 214A, which leads to an outer surface 120; 220 of the base 110; 210 (see Figure 4 and 9 ) orifice 115; 215. Each channel conduit 114; 214 is suitable for the stripped end of the wire to pass through for electrical connection with the corresponding electrical connection terminal 130 (see Figures 2 to 4 and Figures 7 to 9 ).

[0052] Here, the base 110; 210 also includes mounting elements at its four corners (see Figure 2 and 7 ) for mounting it in a protruding housing 20 (which itself is attached to a wall). Preferably, these mounting elements allow the base 110; 210 to be mounted in the housing 20 in at least two directions that are perpendicular to each other.

[0053] When the base 110; 210 is mounted in the housing 20, the base is intended to abut against a support plane PS located behind the base 110; 210 (see Figures 2 to 5 and 7 to 9). The support plane PS belongs to the base 110; 210.

[0054] The mounting elements are in the form of mounting claws 113; 213, which extend laterally at the four corners of the base 110; 210 (see Figures 1 to 9 ). More specifically, they extend along a mean plane parallel to said support plane PS (see Figure 2 , 3 , 4, 5, 7, 8 and 9). The support plane PS is generally parallel to the front wall 111A; 211A and the rear wall 111B; 211B of the base 110; 210. Here, more specifically, the support plane PS of the base 110; 210 of the electrical device mechanism 100; 200 includes the rear surface of each mounting claw 113; 213 (see Figure 2 , 3 , 4, 5, 7, 8 and 9).

[0055] Here, the four mounting claws 113; 213 are symmetrical with respect to two middle planes perpendicular to the base 100; 210. They extend along the diagonal direction of the base 110; 210 and are equidistant from each other. Each mounting claw 113; 213 includes an orifice for passing a fixing screw (see Figure 2 and 7 ).

[0056] Each mounting claw 113; 213 is adapted to abut against the front end of the receiving tube 21 rising from the bottom wall of the housing 20, so that each mounting claw 113; 213 has an orifice that coincides with the central orifice of the corresponding receiving tube 21 (see Figure 1 and 6 ). Each mounting claw 113; 213 is thus fixed to the corresponding receiving tube 21 by tightening each fixing screw.

[0057] The rear surface of each mounting claw 113 ; 213 thus abuts against the front end of one of the receiving tubes 21 of the housing 20 .

[0058] When the electrical device mechanism is installed in the housing 20, the end of the receiving cylinder 21 of the housing 20 here embodies the surface against which the support plane PS defined above abuts. When the electrical device mechanism is installed in the housing 20, the end of the receiving cylinder 21 of the housing 20 forms a plane against the support plane PS of the base 110; 210.

[0059] In a variant, the mounting element may comprise an equipment support in the form of a frame surrounding the base. The equipment support may be integral with the base or may be a separate component from the base to which the base is attached. In this case, the equipment support and the base comprise complementary assembly means.

[0060] Also in a variant, the base comprises, for example, resilient snap-on claws intended to cooperate by snap-on with complementary parts of the housing or of the embedding frame.

[0061] It is worth noting that, here, the outer surface 120; 220 of the base 110; 210 is arranged around the orifice 115; 215, and each channel duct 114; 214 of the connecting terminal 130 leads to the outer surface, so that when the user looks at the base 110; 210 from the front along the direction M1; M2 substantially perpendicular to the supporting plane PS, the inner surface 114A; 214A of the channel duct 114; 214 is partially visible.

[0062] The user's field of view along this direction is particularly Figure 2 and 7 Visible in.

[0063] The outer surface 120 of the base 110; 210; 220 adjacent to each orifice 115; 215 has an inclination I1 of 5-85 degrees relative to the support plane PS on at least a portion of the outer surface 120; 220; I2 (see Figure 4 and 9 ).

[0064] The profile of each aperture 115 ; 215 is defined as the intersection between the inner surface 114A; 214A of the channel conduit 114 ; 214 and the outer surface 120 ; 220 of the base 110 ; 210 .

[0065] More specifically, the inclination I1; I2 is defined as the angle between the support plane PS and the mean plane or tangent plane of the profile of the orifice 115; 215, measured in a plane perpendicular to the support plane PS and including the longitudinal axis of the channel duct 114; 214 (see Figure 4 and 9 ).

[0066] In particular, for this purpose, said portion of said outer surface of the base 110; 210 comprises an inclined plane, or has a curved shape relative to said support plane PS.

[0067] According to the invention, around said orifice 115; 215 into which each passage duct 114; 214 opens, the outer surface 120; 220 of the base 110; 210 has an inclination, i.e. the projection of the contour of this orifice 115; 215 on the support plane PS encompasses a non-zero area. The contour of the orifice 115; 215 is therefore visible along a viewing direction perpendicular to the support plane PS.

[0068] In the embodiment shown in the drawings, the outer surface has a generally curved shape (see Figure 4 and 9). The curvature is convex here, which can optimize the free inner space of the base 110; 210 to accommodate the connecting terminal 130.

[0069] Preferably, the portion of the outer surface 120;220 having this inclination surrounds at least the rear portion of each aperture 115;215.

[0070] according to Figures 1 to 5 In the first embodiment shown, the front portion 115A of the profile of each orifice 115 extends perpendicularly to the middle portion of the profile of the orifice, the middle portion being located between the front portion 115A of the profile and the rear portion 115B of the profile (see Figure 4 ).

[0071] An outer surface 120 of the base 110 surrounding each aperture 115 has a first slope around a front portion of the aperture 115 and a second slope around a rear portion of the aperture 115 .

[0072] The front part of each aperture 115 extends substantially perpendicularly to the rear part and is only a little visible or not visible when the user looks at the mechanism perpendicular to the support plane PS. In contrast, the rear part of each aperture 115 is inclined at an angle I1 relative to the support plane PS, which allows the user to see the rear part of the aperture 115.

[0073] The front portion of each aperture 115 is here delimited by a return 121 of the front wall 111A of the base 110, which extends over a portion of the channel duct 114. This return 121 guides the insertion of the electrical wire into the channel duct 114.

[0074] In a variant, the front portion of the profile of each orifice may extend in cantilevered fashion over the middle portion of said profile of that orifice.

[0075] Since the front part of the contour of each opening 115 extends perpendicularly to the middle part of the contour of the opening 115 or extends overhangingly above the middle part, the channel duct 114 has a shape that can correctly guide the wires inside it, especially when the wires are inserted into the channel duct 114. In addition, this limits the extent of the opening 115 of the channel duct 114 in a plane parallel to the support plane PS of the device mechanism, that is, the extent of its opening toward the front.

[0076] according to Figures 6 to 9 In the second embodiment shown, the outer surface 220 is uniformly curved around each of the orifices 215 .

[0077] Furthermore, according to the invention, whatever the embodiment considered, each channel duct 114; 214 extends along a longitudinal axis L1; L2 forming a non-zero angle A1; A2 with said support plane PS (see Figure 4 and 9 ).

[0078] Preferably, said longitudinal axis L1; L2 is inclined at an angle A1; A2 of 5-20 degrees relative to said support plane PS. This angle A1; A2 is, for example, equal to 11 degrees.

[0079] The longitudinal axis L1; L2 of each channel duct 114; 214 is inclined by 5-20 degrees, in particular, equal to 11 degrees, relative to the support plane PS, so that the electrical device mechanism can obtain particularly satisfactory ergonomic application. This arrangement facilitates the insertion of wires into the channel duct 114; 214.

[0080] Preferably, the inner surface 114A of each channel conduit 114; 214; 214A is visible within a length D1; D2 range of 1-5 mm of the rear portion of the contour of the orifice 115; 215 (see Figure 2 and 7), for example equal to 3 mm.

[0081] This arrangement is particularly advantageous because satisfactory visibility of the opening 115; 215 of the passage duct 114; 214 from the front of the electrical device mechanism 100; 200 where a user is located can be ensured when the wires are inserted into the passage duct 114; 214. The overall volume of the device mechanism is still limited.

[0082] Thanks to the invention, once the mechanism is mounted in the housing 20 or in the flush-mounted frame, the electrical connection of the wires can be achieved without having to dismantle the mechanism to remove it from the housing or frame.

[0083] In fact, the user can easily locate the exact position of the orifice of each channel conduit from the front of the mechanism and insert the wires directly therein.

[0084] Wires can be easily inserted, whether they are e.g. Figure 6 In the straight, or for example Figure 1 For example, when the wires arrive from one side of the housing 20, they are straight; for example, when the wires enter from the bottom of the housing 20, they are curved.

[0085] The electrical connection terminals 130 ; 230 are, for example, automatic connection terminals.

[0086] More specifically, if Figure 5 As shown, each electrical connection terminal 130 is made by cutting and forming a metal strip. Each electrical connection terminal 130 includes a cage 130A against which a leaf spring 130B extends.

[0087] Each conductive cage 130A here has two planar areas connected by a bridge. An opening is provided in the bridge to allow the stripped end of the wire to pass through. The free end of the leaf spring 130B points to the contact area formed by the inner surface of a part of the cage 130A, and the other end of the leaf spring 130B rests against the cage 130A through a lateral fold 130C of the cage 130A (see Figure 5 ).

[0088] In order to make an electrical connection with one of the electrical connection terminals 130; 230, the stripped end of an electric wire (not shown) originating from the power supply grid enters the cage 130A of the terminal via a channel guide 114; 214 provided in the front part 110A; 210A of the base 110; 210 of the electrical device mechanism 100; 200, so that the exposed conductor core of the electric wire is stuck between the inner surface of the cage 130A and the free end of the leaf spring 130B.

[0089] The leaf spring 130B is prestressed so that under the action of the wire entering the cage, the leaf spring 130B leaves the contact area and exerts sufficient pressure on the exposed metal core of the wire to establish good contact between the electrical terminal and the metal core of the wire, while preventing accidental manual removal from the cage (the clamping force exerted by the leaf spring must withstand the standard pulling force exerted on the wire).

[0090] In order to pull out the wire from the electrical terminal 130, in a manner known per se, through the opening 131 in the front portion 110A of the base 110 of the electrical device mechanism 100; 200; 210; 210A; 231 (see Figure 1 and 7 ) is provided with an operable push plate (poussette) 240 (see Figure 6), is used to push the operating part of the leaf spring 130B of the electrical connection terminal 130, thereby separating the leaf spring 130B from the wire. The wire no longer controlled by the leaf spring 130B can be easily pulled out from the electrical device mechanism 100; 200.

[0091] Typically, in order to define an electrical circuit, each control button is associated with three electrical connection terminals 130 by means of each transmission element 126; 226. Of the three electrical connection terminals, two electrical connection terminals 130 comprise fixed contact elements, as in the example shown here.

[0092] More specifically, here, the cage 130A of the two electrical connection terminals 130 is extended by the end portion provided with the fixed contact point 132 (see Figure 5 ).

[0093] As for the third electrical connection terminal 130, it is connected via a conductive sheet to a fixed fork-shaped member (chape) 123, on which a movable part called a brush 124 is pivotally mounted and received (see Figure 5 ).

[0094] The fork-shaped member 123 is a profile having a V-shaped cross section. The profile extends substantially parallel to the support plane PS located behind the base 110; 210 (see Figure 5 Its longitudinal axis defines the pivot axis A1 for the brush 124 (see Figure 5 ).

[0095] Each brush 124 is an L-shaped thin plate, one branch of which is received laterally by the fork-shaped member 123 to establish electrical contact, and the other branch of which carries a movable contact point 124A at the free end (see FIG. 5 ).

[0096] By utilizing the displacement of each transmission member 126; 226, each brush 124 is suitable for pivoting around the pivot axis A1 between two extreme positions so as to enable the movable contact element - here the movable contact point 124A carried by the brush 124 - to contact or lose contact with at least one fixed contact point 132 carried by the fixed element of the electrical connection terminal 130.

[0097] Each transmission member 126 is associated with a single control device and thus with a single electrical circuit.

[0098] In this case, the transmission element 126; 226 is mounted on the base 110; 210 so as to be pivotally movable about a pivot axis, so that the brush 124 is displaced between its two extreme positions.

[0099] It is for example reversibly mounted by means of two pins 127 formed on the transmission member 126; 226 and respectively inserted into two corresponding holes 126A formed in the base 110; 210, thereby defining a reversal axis A2 for the transmission member 126; 226 (see Figure 5 ).

[0100] The tilt axis A2 is substantially parallel to the pivot axis A1 of the associated brush 124 .

[0101] Here, each transmission member 126 ; 226 is suitable for displacing the corresponding brush 124 between a first extreme position in which the movable contact point 124A contacts the fixed contact point 132 and another extreme position in which the movable contact point 124A contacts another fixed contact point 132 .

[0102] In a variant, each transmission member may be suitable for displacing the corresponding brush between a position in which the movable contact point is in contact with the fixed contact point and a position in which the movable contact point is out of contact with the fixed contact point.

[0103] Each transmission member 126; 226 is an insulating component, for example made of molded plastic material.

[0104] Each transmission member 126; 226 comprises a front wall 128; 228 extending in front of the base 110; 210 on both sides of its tilt axis A2; B2. It is extended rearwards by a tubular element 122 (see FIG. 5).

[0105] The front wall 128 ; 228 of each transmission element 126 ; 226 has a standard width which is referred to as “one module”.

[0106] In a variant, the width of the transmission may be equal to twice the standard width, or a width known as "two modules".

[0107] The tubular element 122 is integral with the transmission member 126; 226 (in this case forming a single component with the transmission member 126; 226), extends rearwardly from the transmission member 126; 226 at a level perpendicular to the tilting axis of the transmission member and passes between the inner wall 112 of the rear part 110B; 210B of the base 110; 210 through an opening provided for this purpose in the front part 110A; 210A of the base 110; 210 (see Figure 5 ).

[0108] A resilient turning device 129 of the brush 124 is also provided in the usual manner (see Figure 5). The elastic turning device 129 comprises in a conventional manner a spring mounted in the tubular element 122 associated with the brush 124 and adapted to push the brush 124 towards one or the other extreme position, depending on the position of the transmission 126, after the pressure point has been crossed. To this end, the branch of each brush 124 received by the fork-shaped part 123 has a projection 125 on the side opposite to the side in contact with the fork-shaped part 123, on which the spring forming the elastic turning device 129 is mounted (see Figure 5 ). The movement of each transmission member 126; 226 drives the movement of the spring, thereby driving the movement of the corresponding brush 124.

[0109] Therefore, by operating a button (not shown) connected to each transmission member 126; 226, the user controls each transmission member 126; 226 to flip toward one position, which drives the elastic flip device 129 to flip, and drives the associated brush 124 to flip, so that the movable contact element 124A contacts or breaks contact with the fixed contact element 132. The two positions of each transmission member 126; 226 correspond to the two extreme positions of the brush 124.

[0110] Therefore, the movement of each transmission member 126; 226 drives the spring to move, thereby driving the brush 124 to move, so that the brush can be quickly and accurately flipped between the two extreme positions while avoiding the formation of arcs.

[0111] Thus, advantageously, the same base has mounting means which can accommodate a single transmission in the case of a single control device and two different transmissions in the case of a dual control device. Thus, a single universal base can be manufactured suitable for either a single control configuration or a dual control configuration of an electrical switch according to the invention.

[0112] The present invention is not limited to the embodiments described and shown in the various drawings, and a person skilled in the art will understand how to make any modifications based on the spirit of the present invention.

Claims

1. An electrical device mechanism (100), comprising an insulating base (110) having an outer surface (120), the base comprising at least one electrical connection terminal (130), and provided with at least one channel conduit (114) leading to the electrical connection terminal (130), the channel conduit (114) being defined by an inner surface (114A) in an opening (115) leading to the outer surface (120) of the base (110), the contour of the opening (115) being defined by the inner surface (114A) of the channel conduit (114). 14A) and an outer surface (120) of a base (110), said base (110 being intended to rest on a support plane (PS) belonging to said base (110) and situated behind said base (110), said outer surface (120) of the base (110) being arranged around said opening (115) so that said inner surface (114A) of the passage duct (114) is partially visible when a user looks at the base (110) from the front along a direction (M1) substantially perpendicular to said support plane (PS), It is characterized in that The front portion (115A) of the profile of the orifice (115) extends perpendicularly to or cantilevered above a middle portion of the profile of the orifice (115), the middle portion being located between the front portion (115A) and the rear portion (115B) of the profile.

2. The electrical device mechanism (100) according to claim 1, in, The outer surface (120) of the base (110) has an inclination (I1) of 5-85 degrees relative to the support plane (PS) on at least a portion of the outer surface (120) adjacent to the orifice (115).

3. The electrical device mechanism (100) according to claim 2, in, Said at least a portion of said outer surface (120) comprises an inclined plane or is curved relative to said support plane (PS).

4. The electrical device mechanism (100) according to any one of claims 1 to 3, in, The channel conduit (114) extends along a longitudinal axis (L1) forming a non-zero angle (A1) with the support plane (PS).

5. The electrical device mechanism (100) according to claim 4, in, The longitudinal axis (L1) is inclined at an angle (A1) of 5-20 degrees relative to the support plane (PS).

6. The electrical device mechanism (100) according to any one of claims 1 to 3, in, The inner surface (114A) of the channel conduit (114) is visible within a length range (D1) of 1-5 mm of the rear portion of the contour of the orifice (115).

7. An electrical component used for an electrical device, comprising the electrical device mechanism (100) according to claim 1 and a cover indicating an electrical function of the electrical device.

8. An electrical device comprising the electrical assembly according to claim 7 and a housing or an embedded frame at least partially accommodating the electrical device mechanism (100).

9. The electrical device according to claim 8, which is sealed, in, The cover seals the housing or the embedded frame that accommodates the electrical device mechanism (100) according to claim 1 in a sealed manner.

10. The electrical device according to claim 8 or 9, which is an electrical switch, in, The blocking cover comprises a control button suitable for cooperating with the electrical equipment mechanism (100).

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