Improved kit and method for installing an electrical module in a surface

Abstract

In a first aspect, the invention pertains to a kit for installation of an electrical unit in a surface, such as a wall or piece of furniture, said kit comprising: an electrical module with a housing having a front side, rear side, and casing, wherein the front side is configured to receive an electrical connector plug, and the housing includes one or more openings providing access to wiring contacts. A mounting plate with a mounting opening is configured to receive the electrical module and includes a radially extending portion for integration with wall finishing material. The electrical module further comprises one or more detachable caps forming a cover portion that passes into or through the mounting opening when connected to the housing. In a second aspect, the invention pertains to a method for installing the electrical module, including aligning a mounting plate with a surface opening, passing wiring through the mounting opening, connecting the wiring to the electrical module, securing one or more caps to enclose the wiring openings, inserting the module into the mounting opening, and securing it within the mounting plate. This simplifies installation by eliminating the need for rear access or separate junction boxes.

Description

[0001] IMPROVED KIT AND METHOD FOR INSTALLING AN ELECTRICAL MODULE IN A SURFACE

[0002] FIELD OF THE INVENTION

[0003] The present invention relates to electrical installations, and more particularly to methods and apparatus for installing electrical modules in surfaces, such as walls, panels or pieces of furniture.

[0004] BACKGROUND

[0005] Existing electrical installation kits typically require an electrical module, such as an outlet or switch, to be connected to a junction box positioned behind a wall. This setup necessitates cutting a large opening in the wall to accommodate the junction box, which not only creates a significant amount of dust and debris, leaving behind a large, uneven opening that requires substantial effort to cover up again. This not only prolongs the installation but also adds complexity to the process, increasing labor and cleanup time, also complicates the installation process. Additionally, access to the back of the wall is often required for wiring, making installations in pre-existing structures cumbersome and time-consuming.

[0006] Furthermore, current kits involve multiple components for both securing the electrical module and concealing the mounting opening. A separate junction box is required for housing the wiring, while a distinct plaster frame or finishing flange is used to cover and integrate the opening into the surrounding surface. This multi-step process significantly increases installation time, as it requires precise alignment of components, additional finishing work, and, in some cases, the use of specialized tools or adhesives to ensure proper integration with the wall. The need for a large cutout and subsequent patching or plastering further extends the complexity and labor intensity of the installation.

[0007] DI (WO2025026585) discloses a kit for installing an electrical unit in a wall or furniture surface, comprising an electrical module and an internal electrical unit with, as well as a mounting plate having a mounting opening receiving the module. However, the mounting plate of DI is configured to be installed against the back side of the wall, and due to the configuration of the mantle the kit is not suited to for the entire installation to happen from the front side of the wall. DI further does notdisclose any mechanism for adjusting the installation depth of the electrical unit relative to the finished wall surface.

[0008] D2 (US20120292097A1) discloses an adjustable mounting arrangement in which a threaded mantle is screwed into a collar of a mounting plate so that rotation of the mantle adjusts its axial position (and thus the depth in the wall), and a jam nut is screwed onto the outer thread and tightened against the collar to fix the mantle in the selected position. Although D2 enables depth adjustment, the mounting plate / collar construction is conceived for installation from the back side of the wall, and fixation likewise requires rear-side access because the jam nut is applied at the back of the mantle; without tightening that jam nut, the mantle cannot be reliably locked in its set extension.

[0009] The current invention aims to simplify the installation of an electrical module in a surface and reduce the overall installation footprint.

[0010] SUMMARY OF THE INVENTION

[0011] In a first aspect the invention pertains to a kit for installation of an electrical unit in a surface, such as a wall or piece of furniture, said kit comprising: an electrical module comprising a housing, wherein said housing is formed by a front side, a rear side, and a casing, wherein the casing extends between the front side and the rear side along a longitudinal direction, and wherein the front side is configured to receive an electrical connector plug, and wherein the electric module comprises an electrical unit comprised in the housing, and wherein the electrical unit comprises contacts for connecting wiring, and wherein the housing comprises one or more openings providing access to said contacts for the wiring; a mounting plate comprising a mounting opening configured to receive the electrical module, wherein the mounting plate comprises a portion extending radially around the mounting opening, the portion being configured to be covered with a wall finishing material; wherein the electrical module further comprises one or more caps, wherein the one or more caps are detachably connectable to the housing and form a cover portion when connected to the housing, wherein the cover portion is configured to pass into or through the mounting opening when connected to the housing.

[0012] In a second aspect the invention pertains to a method for installing an electrical module in a surface, such as a wall or piece of furniture; wherein said electrical module comprises an electrical unit comprised in a housing, and one or more caps, said caps detachably connectable to the housing; wherein the method comprises thesteps of: aligning a mounting plate and a surface opening, wherein the mounting place comprises a mounting opening, wherein the mounting plate comprises a portion extending radially around the mounting opening, whereby the mounting opening and the surface opening align, and whereby said portion extending radially overlaps with surface surrounding the surface opening; passing wiring through the mounting opening from a back side of the mounting opening; connecting contacts of the electrical unit to the wiring to form an electrical connection between the electrical unit and an external power source connected to the wiring, said connection passing one or more openings in the housing, said openings preferably being provided at a rear side of the housing; connecting one or more caps to the housing, whereby said one or more caps form a cover portion when connected to the housing, and whereby said cover portion encloses the one or more openings in the housing; passing the cover portion into or through the mounting opening; passing the housing into or through the mounting opening; securing the electrical module within the mounting plate.

[0013] The primary goal of the invention is to simplify installation and reduce the installation footprint. This is achieved by using a cap that eliminates the need for a traditional junction box and by designing the caps, the housing of the electrical module, and a mounting plate so that the cover portion fits through the mounting opening. As a result, the electric module can be installed from the front, limiting the need for rear access and making oversized openings unnecessary, thereby reducing complexity and making installation more efficient.

[0014] DESCRIPTION OF FIGURES

[0015] The following description of the figures of specific embodiments of the invention is merely exemplary in nature and is not intended to limit the present teachings, their application or uses. Throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0016] FIG. 1 shows a perspective front view of an electric device for installation in a surface according to an embodiment of the present invention.

[0017] FIG. 2 shows a perspective front view of an electric device for installation in a surface with the cap detached from the housing.

[0018] FIG. 3 shows a perspective rear view of electric device for installation in a surface.FIG. 4 shows a perspective rear view of electric device for installation in a surface with the cap detached from the housing.

[0019] FIG. 5a and 5b respectively illustrate a rear view of the cap and the housing of an electric device designed for surface installation.

[0020] FIG. 6 shows a perspective of the device with a front side cover.

[0021] FIG. 7. shows a European version of the device, with visible fixation screw. The corresponding clamping wing has not been shown to make the second lateral recesses clearly visible.

[0022] FIG. 8 shows an embodiment of the electric device with two receptacles.

[0023] FIG. 9 shows an exploded view of the electric device with a front side cover.

[0024] FIG. 10 shows an exploded view of the electric device with a front side cover.

[0025] FIG. 11 shows an exploded view of the electric device with two receptacles.

[0026] FIG. 12 shows a rear view of the electric device with a clamping wing in the second, radially extending, configuration.

[0027] FIG. 13 shows a rear view of the electric device with two receptacles.

[0028] FIG. 14 shows a exploded rear view of the electric device.

[0029] FIG. 15 shows a exploded rear view of the electric device.

[0030] FIG. 16 shows an exploded rear view of the electric device with two receptacles.

[0031] FIG. 17 shows a front view of the mounting plate.

[0032] FIG. 18 shows a side view of the mounting plate.

[0033] FIG. 19 shows a side view of the mounting plate in a configuration where the passage is extended outward from the front side of the mounting plate.FIG. 20 shows a front view of the mounting plate with the electrical module inserted into the mounting opening.

[0034] FIG. 21 shows a side view of the mounting plate with the electrical module inserted into the mounting opening.

[0035] FIG. 22 illustrates a front view of a mounting plate.

[0036] FIG. 23 presents an exploded view of the mounting plate.

[0037] FIG. 24 provides a front view of the mounting plate with the electrical module secured in the mounting opening.

[0038] FIG. 25 illustrates the rear view of the mounting plate with the electrical module secured in the mounting opening.

[0039] FIG. 26 shows a rear view of the mounting plate with the electrical module without cap secured in the mounting opening.

[0040] FIG. 27 shows a perspective view of an embodiment of the clamping element.

[0041] FIG. 28 shows a bottom view of the embodiment of the clamping element of FIG.

[0042] 27.

[0043] FIG. 29 shows a perspective view of an embodiment of the clamping element. FIG. 30 shows a bottom view of the embodiment of the clamping element of FIG.

[0044] 29.

[0045] FIG. 31 shows a perspective view of the cap attached to the module.

[0046] FIG. 32 shows a front view of the backside of the cap.

[0047] FIG. 33 shows a perspective view of the cap with no clamping element inserted.

[0048] FIG. 34 shows a longitudinal cross-section of the device.

[0049] FIG. 35 shows the internal structure of the cap.FIG. 36 shows an embodiment of the device comprising two receptacles.

[0050] FIG. 37 shows an embodiment of the device comprising two receptacles, where the cap and the clamping element are removed.

[0051] FIG. 38 shows an embodiment of the device comprising two receptacles, where a metallic cable is attached and where the clamping element and the cap are removed.

[0052] FIG. 39-41 shows an embodiment of the device comprising two receptacles, where different cable types with difference diameters are connected.

[0053] DETAILED DESCRIPTION OF THE INVENTION

[0054] As used herein, the following terms have the following meanings:

[0055] The recitation of numerical ranges by endpoints includes all numbers and fractions subsumed within that range, as well as the recited endpoints.

[0056] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment, but may. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner, as would be apparent to a person skilled in the art from this disclosure, in one or more embodiments. Furthermore, while some embodiments described herein include some but not other features included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention, and form different embodiments, as would be understood by those in the art. For example, in the following claims, any of the claimed embodiments can be used in any combination.

[0057] By the term "housing" is meant in the present invention a structure formed by a front side, a rear side, and a casing, where the casing extends between the front side and the rear side along a longitudinal direction. The "front side" is configured to receive an electrical connector, and the "rear side" comprises one or more openings providing access to the contact points for wiring. The housing is typically a hollow body. Preferably it is made of plastic, more preferably of a fire-retardant plastic.The term "electrical installation" is an interrelated set of electrical modules, connection and interconnections in a building.

[0058] The term "electrical unit" denotes a component housed within the enclosure, featuring one or more connectors for linking wiring. These connectors are accessible via one or more apertures in the casing and / or the rear side of the enclosure. The electrical unit may encompass a variety of connection interfaces, including Ethernet ports for network connectivity, USB Type-A and USB Type-C ports for data transfer and power delivery, HDMI ports for audio and video signals, and other connectors such as VGA, DVI, or DisplayPort for additional display options. These interfaces enable indirect electrical transmission and facilitate diverse connectivity solutions. Notably, the connectors are preferably specifically configured for electrical power transfer, such as a socket for a power plug. The power plug may be a "standard" plug, but can also be a USB connector.

[0059] The term "cap" refers to a detachable component configured for being connected to the housing, wherein one or more caps, when connected to the housing, form a concave cover portion that covers the one or more openings in the housing for connected wiring to the contacts of the electrical unit.

[0060] By the term "longitudinal direction", reference is made in the present invention to the direction in which the casing extends between the front side and the rear side of the housing.

[0061] The term "snap-fit connection" refers to a type of fastening where one or more longitudinally extending arms of the cap engage with slots in the housing, allowing the cap to be secured without the use of screws or tools.

[0062] The term "wiring opening" refers to an opening in the cap that provides a passage facilitating the connection between the wiring and the contacts of the electrical unit.

[0063] The term "fixation screws" refers to screws used to secure the electrical module in or to a surface, such as a wall or piece of furniture, or in a mounting plate.

[0064] The term "clamping wings" refers to components associated with the fixation screws, configured secure an electrical module by anchoring to a structure surrounding the electrical module. These wings can be adjusted between an extended and enclosed configuration by means of rotation.The term "electrical connector plug", "plug" or "electrical connector" refers to a electrical module used to establish an electrical connection between a power source and an electrical appliance. Examples include but are not limited to standard wall plugs, USB plugs, headphone jacks, and vehicle charging connectors.

[0065] The term 'receptacles' in the context of electrical modules refers to outlets or sockets designed to receive plugs or electrical connectors and provide a connection point for electrical appliances or equipment.

[0066] The term electrical module refers to a component comprising an electrically functional unit enclosed within a housing.

[0067] The rear side of the housing is defined as the section of the housing that extends across a maximum cross-section of the housing and that separates the internal volume of the housing from a volume external to the housing, where said maximum cross-section is measured perpendicular to the longitudinal direction.

[0068] In the context of this application, positions of a fixation screw is defined by the position of its longitudinal axis.

[0069] Unless otherwise defined, all terms used in disclosing the invention, including technical and scientific terms, have the meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. By means of further guidance, definitions for the terms used in the description are included to better appreciate the teaching of the present invention. The terms or definitions used herein are provided solely to aid in the understanding of the invention.

[0070] In a first aspect the invention pertains to a kit for installation of an electrical unit in a surface, such as a wall or piece of furniture, said kit comprising: an electrical module comprising a housing, wherein said housing is formed by a front side, a rear side, and a casing, wherein the casing extends between the front side and the rear side along a longitudinal direction, and wherein the front side is configured to receive an electrical connector plug, and wherein the electric module comprises an electrical unit comprised in the housing, and wherein the electrical unit comprises contacts for connecting wiring, and wherein the housing comprises one or more openings providing access to said contacts for the wiring; a mounting plate comprising a mounting opening configured to receive the electrical module, wherein the mountingplate comprises a portion extending radially around the mounting opening, the portion being configured to be covered with a wall finishing material; wherein the electrical module further comprises one or more caps, wherein the one or more caps are detachably connectable to the housing and form a cover portion when connected to the housing, wherein the cover portion is configured to pass into or through the mounting opening when connected to the housing.

[0071] The primary goal of the invention is to simplify installation and reduce the installation footprint. This is achieved by using a cap that eliminates the need for a traditional junction box and by designing the caps, the housing of the electrical module, and a mounting plate so that the cover portion fits through the mounting opening. As a result, the electric module can be installed from the front, limiting the need for rear access and making oversized openings unnecessary, thereby reducing complexity and making installation more efficient.

[0072] The mounting plate is also suited to be installed on the rear of the mounting surface, and as the cover portion can pass through the mounting opening, the electrical module can be installed be installed via the front. The kit therefore allows for more flexibility and applicability without increasing the complexity of installation or the required components and tools.

[0073] Unlike conventional systems requiring large junction boxes and rear-side access, the cap structure integrates the functionalities of a junction box into a compact component. Traditional junction boxes often require either rear installation— making maintenance and removal inconvenient— or oversized front openings that necessitate large cover plates. Instead, this invention utilizes the housing itself as a containment volume for electrical connections, significantly reducing the number of separate components while ensuring compliance with safety regulations.

[0074] A major advantage of this kit is its minimal installation footprint and ease of use. The modular design allows for flexibility in mounting, making it adaptable to different surfaces and installation scenarios. The mounting plate can be affixed to a surface, the electrical module can be wired in place, and one or more caps can securely enclose the connections, ensuring compliance with electrical safety standards. By integrating the junction box function within the cap structure, the system allows for front-side installation, eliminating the need for rear access and reducing the number of additional components.The compact design optimized for front-side installation also minimizes surface disruption. The hole in the surface where the electrical module is installed can be significantly smaller than in conventional systems, as the electrical module and caps are designed to fit through the clamping mechanism mounting opening when connected. This eliminates the need for an oversized cutout, resulting in a cleaner and more efficient installation process, particularly beneficial for retrofitting or installations in confined spaces.

[0075] In conventional systems, electrical connections are typically pushed back through a small opening in the junction box before inserting a wall fixture, such as a socket or switch. During maintenance, retrieving these connections can be challenging and potentially hazardous. Additionally, regulations may restrict looping connections through such small openings. By eliminating the need for a traditional junction box, this invention improves accessibility, safety, and compliance with installation standards.

[0076] Beyond simplifying installation, the cap structure also provides protection against dust, moisture, and mechanical interference, ensuring the safety and longevity of the electrical unit. By integrating the junction box function within the cap structure, the kit streamlines the installation process, enhances organization, and improves overall system safety and reliability.

[0077] In a third aspect the invention pertains to a mounting plate comprising a mounting opening configured to receive an electrical module, wherein the mounting plate comprises a portion extending radially around the mounting opening, the portion being configured to be covered with a wall finishing material; wherein the electrical module further comprises one or more caps, wherein the one or more caps are detachably connectable to the housing and form a cover portion when connected to the housing, wherein the cover portion is configured to pass into or through the mounting opening when connected to the housing.

[0078] In an embodiment of the invention a front side of the portion of the mounting plate extending radially is configure to be covered with wall finishing material.

[0079] In a preferred embodiment, the cap may be designed to accommodate a range of housing dimensions, optionally allowing for versatility in its application across different electrical module sizes and configurations. This adaptability may preferably be achieved through the use of flexible materials or adjustable components that canconform to the specific dimensions of the housing. The cap's design optionally ensures that the maximum cross-section of the electrical module remains within the dimensions of the front side, which more preferably maintains the electrical module's compact profile and facilitates its integration into various installation surfaces.

[0080] In an embodiment the electrical module comprises a frontal side in the direction faced by the front side of the housing, wherein said frontal side of the electrical module is formed by the housing and / or by the one or more caps when connected to the housing, and wherein a section of the electrical module extending from a rear side of the one or more connected caps up to but not including the frontal side is configured to pass into or through the mounting opening. The frontal side may be partly formed by the front side of the housing, in the case the one or more caps extend from the rear side to the front side of the housing. Alternatively, the one or more caps may extend beyond the front side of the housing and cover the front side of the housing. In this case the frontal side does not comprise the front side of the housing and is entirely formed by part of the one or more caps. Alternatively, in the case where the one or more caps do not extend beyond the front side of the housing, the frontal side is entirely formed by the front side of the housing.

[0081] In another embodiment, the one or more caps envelop the rear side and part of the casing of the housing, wherein the one ore more openings are located in the casing or in the back side, and wherein the on ore more caps providing full enclosure of the one or more openings and full protection of the contacts of the electrical unit. The mounting plate in accordance with this shape is designed to accommodate electrical module, ensuring a secure fit and structural stability. Optionally the mounting plate comprises a recessed or contoured section that conforms to the shape the caps, allowing for precise alignment during installation.

[0082] In a further or alternative embodiment, the cover portion is not solely formed by the one or more caps but is also partially formed by the mounting plate once the electrical module is inserted into the mounting opening. In this configuration, the one or more caps only partially enclose the one or more openings in the housing of the electrical module when detached from the mounting plate. The full enclosure is achieved only after insertion into the mounting opening, where the structure of the mounting plate cooperates with the caps to form a complete cover portion, enclosing the one or more openings in a secure manner.In a further embodiment, the mounting plate comprises an internal cavity or recessed section that aligns with the one or more openings of the electrical module upon insertion. This recessed section acts as a protective enclosure, shielding the wiring connections from external influences while allowing airflow or thermal dissipation if necessary. The combination of the mounting plate and the one or more caps ensures that no additional junction box is required.

[0083] In alternative embodiment, the one or more caps are designed to engage with the mounting plate upon insertion of the electrical module. This engagement may include interlocking features, compression fittings, or snap-fit mechanisms that ensure a secure connection between the caps and the mounting plate, thereby fully enclosing the one or more openings.

[0084] In a further or alternative embodiment, the mounting plate comprises a flexible or deformable sealing element positioned around the mounting opening. When the electrical module is inserted, this sealing element compresses against the one or more caps, forming a sealed cover portion that protects the wiring connections from dust, moisture, or mechanical damage. This embodiment is particularly advantageous for installations in high-humidity environments or industrial settings where additional protection is required.

[0085] In a further or alternative embodiment, the mounting plate comprises integrated structural extensions or shielding surfaces that align with the housing of the electrical module upon insertion. These extensions may be rigid or flexible, depending on the application, and contribute to forming the cover portion without requiring full enclosure by the one or more caps. This reduces the number of separate components while maintaining the necessary protection for the electrical connections.

[0086] In a further or alternative embodiment, the electrical module comprises fixation means configured for securing the electrical module inside the mounting opening, said fixation means further configured to engage with the mounting plate and / or with an internal section of the surface.

[0087] In an further or alternative embodiment, the mounting plate comprises a mounting opening configured to enclose around a section of the housing or around a section of the one or more caps, depending on the extent to which the caps envelop the housing. In this embodiment, the one or more caps extend up to the front side of the housing and form a flange. The flange is configured to abut against theinstallation surface, thereby limiting insertion depth and providing a defined positioning stop. The mounting plate comprises a peripheral region extending radially around the mounting opening, which is adapted to receive a wall finishing material to conceal the interface between the electrical module and the installation surface.

[0088] In an further or alternative, the one or more caps do not form a continuous flange at the front side of the housing but rather engage the housing in an interlocking manner, for example, by means of an arrow fit or other mechanical coupling positioned behind a flange formed around the front side of the housing. The flange serves as a stop surface against which the mounting plate is positioned. In this embodiment, the mounting opening of the mounting plate is dimensioned to accommodate the section of the housing and / or caps that extends rearward ly beyond the flange, ensuring secure retention of the electrical module. The electrical module may be inserted from the front, with the caps engaging the housing to provide a sealed enclosure for the electrical connections.

[0089] In an alternative embodiment, the one or more caps extend along only a portion of the longitudinal length of the housing, such that a section of the casing remains exposed when the electrical module is inserted into the mounting opening. The mounting plate in this configuration is adapted to enclose around both a portion of the cap and a portion of the casing, thereby accommodating variations in cap dimensions while maintaining a secure fit. The mounting opening may further comprise guiding formations, such as ridges or recesses, that interact with corresponding features on the casing and / or caps to ensure proper alignment during installation.

[0090] In an alternative or further embodiment, upon insertion of the electrical module into the mounting opening, the entirety of the caps is positioned behind the mounting opening. In this case, the mounting opening is configured to enclose only around the housing, with the caps positioned fully within or behind the installation surface. The mounting plate may comprise a securing mechanism, such as clamping elements or retention tabs, to engage the housing and retain the electrical module in position without requiring rear access.

[0091] In an alternative or further embodiment, the housing comprises one or more recesses configured to receive the one or more caps such that, in the assembled state, the external surface of the electrical module remains smooth and free ofprotrusions. The mounting plate in this embodiment comprises an opening adapted to narrow-fit around the outer contour of the electrical module. The mounting plate may further comprise flexible or resilient sections that conform to the shape of the electrical module upon insertion, ensuring a secure and flush installation.

[0092] In a further or alternative embodiment, the front side of the housing does not include a flange, and the mounting plate is configured such that the mounting opening interacts with an outer surface of the electrical module, for example, by means of an interference fit, snap engagement, or threaded engagement. The casing and / or the caps may include structural formations, such as grooves or recesses, that cooperate with corresponding features on the mounting opening to facilitate insertion and secure retention of the electrical module. This embodiment eliminates the need for a visible front-facing flange while ensuring that the electrical module remains securely positioned within the mounting plate.

[0093] In an further or alternative embodiment, the housing comprises guide structures, such as ridges, slots, or detents, configured to engage corresponding formations within the mounting opening of the mounting plate. These guiding structures assist in the alignment and insertion of the electrical module, ensuring that the module is retained in a predetermined orientation. The one or more caps may comprise complementary features that interact with the mounting plate to enhance stability and prevent unintended dislodgement. The mounting plate may further include securing elements, such as locking clips or fasteners, to ensure that the electrical module remains securely fixed within the installation surface.

[0094] In an alternative embodiment the electrical module is secured in the mounting plate by means of screws. In a further embodiment, the electrical module is secured within the mounting opening by screws that pass directly through the housing of the electrical module into pre-threaded holes in the mounting plate, ensuring a rigid and secure fixation. In another embodiment, the electrical module comprises adjustable mounting brackets that allow the screws to engage with the mounting plate at different depths, facilitating fine-tuned positioning and ensuring compatibility with variations in surface thickness. In a further embodiment, the screws engage with side-mounted retention clips that expand outward upon tightening, pressing against the inner walls of the mounting opening to secure the module without requiring prethreaded holes. In yet another embodiment, the screws pass through keyhole slots in the electrical module, allowing the module to be inserted into the mounting opening and then locked into position by rotating it before final tightening, enablingquick and tool-efficient installation. In an alternative embodiment, the mounting plate comprises integrated threaded inserts positioned along the periphery of the mounting opening, allowing the electrical module to be secured by engaging screws at multiple distributed points to improve load distribution and enhance mechanical stability.

[0095] In an alternative embodiment, the electrical module comprises a spring-loaded retention mechanism configured to engage with the mounting opening. The mounting opening of the mounting plate may include one or more engagement recesses or protruding tabs, wherein the retention mechanism of the electrical module automatically locks into place upon insertion. The spring force ensures a secure fit, while manual disengagement of the retention mechanism allows for easy removal or repositioning of the electrical module.

[0096] In an alternative embodiment, the mounting plate comprises a pivoting latch mechanism, wherein the electrical module is inserted into the mounting opening and rotated into position. A latch or cam-based locking element then pivots to secure the electrical module within the mounting opening. The latch may be spring-biased or include a manual locking tab that prevents accidental disengagement while allowing for controlled removal.

[0097] In an alternative embodiment, the electrical module is secured within the mounting opening by magnetic retention, wherein the module comprises one or more embedded magnets, and the mounting plate includes corresponding ferromagnetic elements. The magnetic force provides sufficient retention while allowing for quick installation and removal without mechanical fasteners. This embodiment is particularly advantageous for applications requiring frequent module replacement or repositioning.

[0098] In an alternative embodiment, the mounting plate comprises flexible retention clips, wherein the edges of the mounting opening include inwardly extending flexible tabs that deform slightly as the electrical module is inserted. Once fully seated, the tabs return to their original position, securing the module within the mounting opening. The flexibility of the retention clips ensures a firm grip while accommodating minor dimensional variations.

[0099] In an alternative embodiment, the electrical module and the mounting opening utilize a twist-lock bayonet mechanism, wherein the module is inserted into themounting opening and rotated approximately 90 degrees to engage interlocking tabs or cam slots. The mounting plate may include stop surfaces to prevent over-rotation and ensure that the module remains in the locked position under normal operating conditions.

[0100] In an alternative embodiment, the electrical module is secured within the mounting opening using an expanding collet mechanism, wherein the module includes a compressible collet that expands outward upon insertion. The collet may be actuated by a threaded fastener or a cam mechanism, ensuring a tight fit within the mounting opening. This embodiment provides adjustable clamping force while allowing for easy removal when needed.

[0101] In an alternative embodiment, the electrical module comprises a ratcheting engagement mechanism, wherein a series of stepped ridges on the outer surface of the module interact with corresponding ratcheting teeth within the mounting opening. As the module is inserted, the teeth prevent backward movement while allowing incremental depth adjustment. A release tab or override mechanism may be provided to allow for controlled removal of the module.

[0102] In a further or alternative embodiment, the electrical module comprises at least one clamping wing, wherein the clamping wing and the mounting plate are configured to cooperate to secure the electrical module within the mounting plate. The use of at least one clamping wing to secure the electrical module within the mounting plate provides a stable and reliable fixation without the need for additional fasteners, simplifying installation and reducing assembly time. The clamping wing can adapt to minor variations in the dimensions of the mounting plate or material thickness, ensuring a consistent and secure fit. Additionally, it allows for easy removal and repositioning of the electrical module without causing damage to the mounting plate, making maintenance, replacement, or depth adjustments more convenient. By distributing clamping forces across a larger surface area, the risk of stress concentration and potential damage to the module casing or mounting plate is minimized. Furthermore, the clamping mechanism enhances vibration resistance by maintaining a continuous and evenly distributed holding force, preventing loosening due to mechanical stress or environmental factors. The cooperation between the clamping wing and the mounting plate also enables the electrical module to be positioned at any axial orientation, eliminating the need for precise alignment before fixation and thereby improving the ease and efficiency of installation.In a further embodiment, the clamping wing is adjustable axially and / or longitudinally by means of a rotatable axis-like component, wherein said axis-like component extends longitudinally and is positioned within maximum dimensions of the casing of the electrical module, measured perpendicular to the longitudinal direction. The axis-like component may be a threaded rod, a camshaft, or another rotating mechanism that enables precise positioning of the clamping wing relative to the mounting plate. The rotation of the axis-like component may be actuated manually, by a tool, or by an integrated motorized adjustment mechanism. The use of a rotatable axis-like component to adjust the clamping wing axially and / or longitudinally provides a highly controlled and precise means of securing the electrical module within the mounting plate. By integrating a threaded rod, camshaft, or other rotating mechanism, the clamping wing can be finely adjusted to exert the required clamping force without relying on pre-set engagement positions, ensuring a secure fixation regardless of minor variations in the mounting plate dimensions or surface irregularities. This adjustability allows the electrical module to be fixated from the front, eliminating the need for rear access and thereby simplifying the installation process, particularly in confined spaces or when retrofitting existing installations.

[0103] In a further or alternative embodiment, the clamping wing is adjustably movable between a first position, wherein the clamping wing at least partly extends outside of a maximal cross-section of the section of the electrical module, and a second position, wherein the clamping wing is fully positioned within said maximal crosssection, wherein said maximal cross-section is measured perpendicular to the longitudinal direction. The first position ensures a secure clamping force against the inner walls of the mounting plate, while the second position allows for easy insertion and removal of the electrical module from the mounting plate. Allowing the clamping wing to retract within the maximal cross-section of the electrical module enables installation through a smaller mounting opening, minimizing the installation footprint and reducing structural impact on the mounting surface. This design preserves the integrity of thin or fragile materials, simplifies retrofit applications, and eliminates the need for oversized cutouts. By expanding only after insertion, the clamping wing ensures secure fixation while preventing snagging or misalignment, making installation more efficient and precise.

[0104] In a further embodiment, the clamping wing is configured to engage with corresponding recesses or slots in the mounting plate, wherein said recesses or slots are dimensioned to receive the clamping wing when in the first position. The recessesor slots may be lined with friction-enhancing material or include locking notches to prevent unintended displacement of the electrical module after installation.

[0105] In a further or alternative embodiment, the clamping wing is biased toward the first position by means of a spring-loaded mechanism, wherein the spring force ensures engagement of the clamping wing with the mounting plate upon insertion of the electrical module. The spring mechanism may be manually or automatically released to allow repositioning of the electrical module within the mounting plate.

[0106] In an alternative embodiment, the clamping wing is configured to be manually extendable or retractable by means of a tool-engageable adjustment system, such as a screw-drive or cam-based mechanism, wherein the adjustment system allows for fine-tuned positioning of the clamping wing relative to the mounting plate. The tool-engageable adjustment system may be accessible from the front side of the electrical module, allowing for post-installation depth adjustments without removing the module from the mounting plate.

[0107] In a further embodiment, the electrical module comprises two or more clamping wings symmetrically positioned on opposite sides of the module, or asymmetrically positioned, wherein the clamping wings are configured to exert uniform pressure against the mounting plate. The symmetrical placement enhances stability and prevents tilting of the module within the mounting opening.

[0108] In another embodiment, the clamping wings are positioned at different longitudinal locations along the electrical module, allowing for multiple points of engagement with the mounting plate. This configuration distributes the clamping force along the length of the module, improving mechanical stability.

[0109] In an embodiment the clamping wings extend forwardly in the longitudinal direction. This extension may be the same or may differ for different clamping wings.

[0110] In an alternative embodiment, the longitudinal position of the clamping wing is adjustable via a sliding mechanism, wherein the clamping wing can be repositioned along the length of the electrical module before securing it in place. The sliding mechanism may be actuated manually or by a threaded engagement that allows incremental adjustments, such as a screw.In another embodiment, the clamping wing is configured to extend behind the mounting opening upon insertion of the electrical module, wherein the clamping wing secures the module by engaging a rear flange of the mounting opening, or a rear portion of the mounting plate surrounding the backside of the mounting opening. This engagement prevents the module from being pulled out unintentionally while ensuring a secure fit. Configuring the clamping wing to extend behind the mounting opening upon insertion allows the electrical module to securely engage a rear flange or the backside of the mounting plate, preventing unintended removal. This design enables a simpler mounting plate, as it eliminates the need for complex retention structures or additional fastening components inside the mounting opening. The engagement mechanism is self-securing, allowing for tool-free or minimal-tool installation, reducing assembly time and ensuring a more intuitive installation process.

[0111] In an alternative or further embodiment, the clamping wing is designed to engage with a retention surface located on the back of the mounting plate, wherein said retention surface provides a mechanical stop against which the clamping wing exerts force. This configuration prevents axial movement of the module and enhances its secure installation within the mounting plate.

[0112] In an embodiment the one or more caps are not part of the electrical module but are connected to the back of the mounting opening, wherein the casing of the housing is at least partly configured to pass into or through the mounting opening, and wherein the one or more caps are configured to engage with the housing to cover the one or more openings when the electrical module is received by the mounting opening.

[0113] In a further embodiment, a single cap is permanently affixed to the rear side of the mounting opening and extends rearwardly from the mounting plate. The casing of the electrical module is at least for a rear section configured to pass through the mounting opening, and once received, the cap encloses the one or more openings on the housing, ensuring that the internal wiring and wiring connections remains protected. The cap and mounting plate may be

[0114] In a further or alternative embodiment, the mounting plate and cap are integrally formed as one piece, wherein the cap extends rearwardly from the back of the mounting opening and forms a protective enclosure for the electrical module. The mounting opening is dimensioned to allow the electrical module to pass throughwhile ensuring that the cap, which is an extension of the mounting plate, remains in place to cover the electrical openings in the housing once the module is received.

[0115] In an alternative embodiment, a single cap is detachably connected to the rear side of the mounting opening, allowing for selective removal or replacement. The cap remains fixed in position behind the mounting plate, forming a permanent enclosure for electrical connections while allowing for easy maintenance or modifications. The mounting plate and the cap may be designed with complementary attachment features, such as interlocking ridges or alignment guides, to ensure that the cap properly aligns with the housing when the electrical module is inserted.

[0116] In another embodiment, the cap is a flexible, yet fixed portion of the mounting plate, wherein it folds or bends into position when the electrical module is inserted into the mounting opening.

[0117] In a further or alternative embodiment, the cap extends rearwardly from the mounting opening in a cylindrical or box-like shape, forming a rearward extension of the mounting plate. This extension allows the electrical module to slide into place while ensuring that the cap covers the one or more openings in the housing. The depth of the cap may be predefined to accommodate different electrical module sizes, ensuring that sufficient internal space is available for wiring and connectors.

[0118] In another embodiment, the cap forms an enclosure that extends along the sides of the mounting plate or mounting opening. In a further embodiment the cap extends around the perimeter of the mounting opening.

[0119] In a further or alternative embodiment the mounting opening forms a substantial part of one or more caps.

[0120] In a further or alternative embodiment, the one or more caps comprise receptacles for receiving electrical wiring and a custom connector, said custom connector being electrically connected to said receptacles and thus to any electrical wiring received by the receptacles. The contacts of the housing and the custom connectors are configured to form an electrical connection when the one or more caps are connected to the housing.

[0121] In a further or alternative embodiment, the one or more caps and the housing are configured to form a close fit. The close fit refers to the precise alignment andminimal gap between the one or more caps and the housing. In a further embodiment, this close fit is achieved by fixating the one or more caps to the housing by rotation or sliding, by which means protrusion and / or indentations are configured to an anchoring configuration. For example, in one configuration, the one or more caps are provided with helical grooves along their inner surface, while the housing includes corresponding ridges. When a cap is rotated, these elements engage in a controlled threading motion, allowing the cap to progressively tighten against the housing while maintaining a precise alignment. This threaded engagement ensures that the cap remains securely in place without additional fasteners. In another embodiment, the one or more caps feature guide rails that align with slotted tracks on the housing. By sliding the cap along these rails, the protrusions on the cap engage with the corresponding indentations in the housing, locking the cap into position. This sliding engagement allows for a smooth yet secure fixation while ensuring the cap remains flush with the housing. Alternatively, the anchoring configuration may employ bayonet-style locking features, where the cap is inserted into the housing and rotated a partial turn to engage complementary locking tabs. These tabs ensure that the cap remains tightly secured against the housing, forming a close fit while allowing for easy removal when needed. In yet another variation, the anchoring configuration can include snap-in latches that engage upon sliding or rotating the cap into position.

[0122] In an embodiment, the one or more caps, when connected to the housing, have a cross-section which, measured perpendicular to the longitudinal direction, falls within the dimensions of the maximum cross-section of the housing.

[0123] In an embodiment, the single cap features integrated wiring openings, designed to simplify assembly by reducing the number of components needed for installation. By incorporating the wiring passage directly into the single cap, the necessity for additional components or external conduits for cable entry is eliminated. This design choice simplifies the installation process, minimizes the electrical module's footprint, and confines all electrical connections within the single cap's concave shape. Consequently, the electrical module can be efficiently installed within walls or furniture without exceeding the housing's maximum cross-section, allowing the electrical module to be installed in a single step, independently of external factors such as wall placement or the positioning of a junction box, which would otherwise require coordination and increase the risk of errors. Additionally, using a single cap with integrated wiring openings aims to lower manufacturing costs and streamline assembly. By merging multiple functions into one component, the production processis streamlined, potentially leading to cost savings and increased efficiency. This approach may also enhance the product's environmental sustainability by reducing material usage and waste during manufacturing. In summary, the embodiment of the electrical module with a single cap and integrated wiring openings offers advantages such as reduced complexity, improved cable alignment, enhanced safety, and potential cost savings, collectively contributing to a more efficient and reliable installation process.

[0124] In another preferred embodiment, the one or more caps incorporate integrated wiring openings. This design is intended to reduce the complexity and time required for assembly by minimizing the number of components involved in the installation process. By integrating the wiring passage directly into the caps, the need for additional components or external conduits for cable entry is preferably eliminated. This approach optionally simplifies the installation process, reduces the overall footprint of the electrical module, and ensures that all electrical connections remain confined within the predefined concave shapes of the caps. As a result, the electrical module may be compactly and efficiently placed within walls or furniture without any protrusions beyond the housing's maximum cross-section. Furthermore, the design facilitates easier assembly in confined spaces where maneuvering around the wire is challenging, enhancing the practicality of the installation process.

[0125] In an embodiment, the one or more caps are detachably connected to the housing without any screws. The electrical module, in this embodiment, features a screwless cap connection that simplifies both installation and maintenance. This design allows the one or more caps to be detachably connected to the housing, enabling tool-free assembly and disassembly, which is particularly beneficial for individuals with limited technical expertise. Skilled professionals also benefit from this feature, as it enhances safety by preventing unintended cable disconnections and efficiency by simplifying the installation process. The cap's attachment mechanism facilitates easy, tool-free assembly by a single person, ensuring secure fastening to the housing and enhancing the convenience and efficiency of the installation process. The one or more caps include longitudinally extending arms that engage with slots in the housing through a snap-fit connection, allowing for detachment and reattachment without screws. This simplifies maintenance and reduces the risk of losing small components during assembly or disassembly, thus saving time and increasing the electrical module's overall efficiency. The detachable cap is designed to be installed after wiring connections, ensuring cables are aligned at an effective angle, minimizing wear, and potentially extending their lifespan while enhancing electricalsafety. The cap design allows flexibility in securing the cable post-installation, enabling installers to adjust cable positioning without additional tools. This screwless cap connection offers versatility and adaptability for various installation scenarios, making it suitable for environments where ease of access and maintenance are crucial, such as residential and commercial settings. The ability to easily detach and reattach the cap facilitates routine inspections and repairs, maintaining the electrical module's performance and reliability. Overall, this embodiment of the electrical module offers a user-friendly solution that prioritizes functionality and convenience.

[0126] In an embodiment, any dimension of the one or more caps when connected to the housing, measured perpendicular to the longitudinal direction, is at most 10 mm greater than a corresponding dimension of the housing.

[0127] In an embodiment, the mounting plate is configured to allow for multiple installation depths of the electrical module relative to the mounting plate. This allows for adaptation to different thicknesses of plaster or other finishing materials that cover the mounting plate, ensuring that the electrical module remains properly positioned and aligned with the visible surface after installation.

[0128] In a further embodiment the mounting plate comprises stepped engagement features within the mounting opening. The one or more caps may include complementary stepped surfaces or modular inserts, enabling selective positioning of the electrical module at different depths relative to the installation surface. The electrical module may be fully recessed within the mounting opening or protrude partially from the surface, depending on installation requirements. The stepped engagement further facilitates secure positioning while accommodating different mounting conditions.

[0129] In an alternative embodiment the mounting plate and / or the electrical module employ cooperating screw threads for adjusting the installation dept of the electrical module relative to the mounting plate. This configuration eliminates the need for custom spacers or additional adjustment components, thereby simplifying installation and improving compatibility with various wall or panel constructions. Using threads to adjust the installation depth of the electrical module provides precise and incremental control, allowing for fine-tuned positioning without requiring additional locking mechanisms. The self-locking nature of threaded engagement ensures that once adjusted, the module remains securely in place, preventing unintended movement due to vibrations or external forces. Threads also distributethe load evenly, reducing localized stress on the mounting components and enhancing durability.

[0130] In an alternative embodiment, the mounting plate comprises a threaded rotatable flange configured to engage with a threaded portion on the outer surface of the electrical module. Rotation of the flange in one direction progressively inserts the electrical module deeper into the mounting opening, while rotation in the opposite direction retracts the electrical module outwardly. The threaded engagement allows for continuous depth adjustment, ensuring precise positioning within the installation surface. A securing mechanism, such as a locking ring or set screw, may be provided to prevent unintentional displacement of the electrical module once the desired depth is set.

[0131] In an alternative embodiment, the mounting opening is a passage extending in the direction perpendicular to the mounting plate, and wherein the passage is adjustably movable with respect to the mounting plate along in the direction perpendicular to the mounting plate. This configuration allows the depth adjustment of the electrical module to be decoupled from the module itself, enabling the mounting plate to accommodate a wider range of electrical modules without requiring module-specific adaptations. Additionally, this design minimizes mechanical complexity, reducing the likelihood of malfunction while also lowering production costs by eliminating the need for specialized adjustment mechanisms or custom-fitted components.

[0132] In a further embodiment the mounting opening comprises a mounting mantle extending rearwardly from the mounting plate, said mounting mantle being configured to be inserted into an opening in a surface with a close fit between the mounting mantle and an edge of the opening, and with a rear side of the radially extending portion abutting the surface.

[0133] In a further or alternative embodiment, the mounting mantle comprises an inner surface provided with guiding means configured to guide the passage when moving in a direction perpendicular to the mounting plate.

[0134] In an further or alternative embodiment the passage is adjustable to extend from both sides in the direction perpendicular to the mounting plate. This allows the mounting plate to be mounted to the back and the front of the installation surface.In a further embodiment said passage is cylindrical and positioned within a mounting mantle in the mounting plate, said mounting mantle comprising an internal thread, and wherein said passage comprises an external thread configured to cooperate with said internal thread to move the passage along the direction perpendicular to the mounting plate, and wherein said mounting mantle is provided in and / or extending from the mounting opening. The passage is configured to rotate within the mounting plate, enabling incremental adjustments to the depth at which the electrical module is positioned within the installation surface. By rotating the flange in one direction, the electrical module is advanced further into the mounting opening, whereas rotation in the opposite direction retracts the passage. The advantage of this embodiment is that it provides precise and controlled depth adjustment of the passage relative to the mounting plate through a threaded engagement, allowing for incremental and secure positioning of the electrical module. The cylindrical shape ensures smooth and even movement along the adjustment axis, preventing misalignment or tilting during installation. Additionally, the threaded connection allows the passage to be locked in place at any desired depth without requiring additional fasteners or clamping mechanisms, enhancing stability and vibration resistance. This configuration also eliminates reliance on predefined step increments, allowing for continuous adjustment to accommodate varying wall thicknesses, finishing layers, or installation conditions. Furthermore, the use of a threaded mechanism enables easy post-installation modifications, as the passage can be repositioned without disassembling the entire mounting plate. This enhances installation flexibility, making the system adaptable to a wide range of electrical module types and environments, while also ensuring repeatable and reliable positioning over time.

[0135] In a further embodiment, the passage has a length between 2 mm and 50 mm, and preferably between 8 mm and 40 mm, and more preferably between 10 mm and 30mm, allowing for adaptability across various mounting depths.

[0136] In a further or alternative embodiment the external thread on the passage extends along a length between 30% and 100%, preferably between 80% and 100% of the passage length.

[0137] In a further or alternative embodiment, the external thread is provided along at least 20%, and preferably at least 40%, and more preferably at least 60% of the circumference of the passage.In a further or alternative embodiment, the external thread is provided along at most 100%, and preferably at most 90%, and more preferably at most 80% of the circumference of the passage.

[0138] In a further embodiment, the external thread is provided along 100% of the circumference of the passage for at least 10% of its length, and preferably at least 20%, and more preferably at least 30% of the length of the passage.

[0139] In a further embodiment, the external thread is provided along 100% of the circumference of the passage for at most 90% of its length, and preferably at most 70%, and more preferably at most 50% of the length of the passage.

[0140] In a further or alternative embodiment, the passage comprises, at one end, one or more recessed sections of the outer surface that are set back relative to the remaining outer surface. This results in an increasing in the local distance to the surrounding mounting plate. These recessed sections preferably extend to the edge of the passage.

[0141] In a further embodiment, the sections are strip-shaped, preferably extending from one end of the passage toward the other end.

[0142] In a further embodiment, said sections have a length of at least 1 cm, preferably at least 2 cm, and more preferably at least 3 cm.

[0143] In a further or alternative embodiment, said sections have a width of at least 2 mm, preferably at least 4 mm, and more preferably at least 6 mm.

[0144] These sections improve the fixation of the passage within the mounting mantle at a predetermined position by promoting the ingress of wall finishing material, such as plaster, into the space between the mounting plate and the passage, thereby improving mechanical interlocking.

[0145] In another embodiment, the external thread has a thread pitch ranging between 0.5 mm and 3 mm, preferably between 0.7 mm and 2 mm, and more preferably between 1 mm and 2 mm, enabling controlled adjustment while balancing mechanical stability and ease of operation.In a further or alternative embodiment, the mounting mantle is cylindrical, with a length, measured perpendicular to the mounting plate, between 5 mm and 80 mm, and preferably between 5 mm and 40 mm.

[0146] The internal and / or external thread is of a type selected from continuous threads, interrupted threads, or segmented thread portions, ensuring various engagement configurations suitable for different applications.

[0147] In a further or alternative embodiment, wherein any inner dimension of the mounting opening is at most 30 mm, and preferably at most 25 mm, and more preferably at most 20 mm larger than a corresponding dimension of the section of the electrical module, said dimensions measured perpendicular to the longitudinal direction.

[0148] In a further or alternative embodiment, the mounting plate comprises a radially extending flange surrounding the mounting opening, wherein the flange is configured to be covered by wall finishing material such as plaster, paint, or wallpaper. The flange extends outwardly along a maximum distance between 5 mm and 100 mm, preferably between 10 mm and 80 mm, and more preferably between 15 mm and 60 mm, ensuring sufficient overlap with the surrounding surface for seamless integration.

[0149] In a further or alternative embodiment, the flange has a thickness between 0.5 mm and 5 mm, preferably between 1 mm and 4 mm, and more preferably between 1.5 mm and 3 mm, allowing the wall finishing material to be applied over it without creating excessive protrusions or requiring deep recessing into the wall. The flange may be flat or slightly recessed to facilitate better material adherence.

[0150] In further or alternative embodiment, the surface of the flange comprises a ribbed, grooved, or perforated structure, wherein these features enhance adhesion of plaster or other finishing materials. The perforations may be provided in a pattern covering between 10% and 90% of the flange surface, preferably between 10% and 70%, and more preferably between 10% and 60%, to optimize adhesion while maintaining structural integrity. The ribs or grooves may have depths between 0.2 mm and 20 mm, and preferably between 0.2 mm and 10 mm to enhance material bonding.

[0151] In an alternative or further embodiment, the flange is provided with a stepped or chamfered edge transitioning into the surrounding wall, ensuring a flush integration when covered with finishing material. The step depth may range between 0.5 mmand 3 mm, preferably between 1 mm and 2 mm, to accommodate finishing material while preventing excessive build-up at the transition.

[0152] In a further or alternative embodiment, the passage forming the mounting opening and the flange are two separate components, wherein the passage is configured to be inserted into or attached to the flange. This allows for independent manufacturing flexibility during installation.

[0153] In an further or alternative embodiment, the mounting plate comprises holes in the radially extending section for receiving screws or other fasteners to secure the mounting plate to the surface, such as a wall or a part of an internal structure of a wall. The holes may be evenly distributed or positioned asymmetrically depending on the required fixation strength and mounting conditions. The holes may have diameters between 2 mm and 10 mm, preferably between 3 mm and 8 mm, and more preferably between 4 mm and 6 mm.

[0154] In a further or alternative embodiment, the radially extending section of the mounting plate is rounded. In another embodiment, the section is rectangular or polygonal, allowing for optimized integration with specific installation surfaces. The width and length of the radially extending section may range between 20 mm and 250 mm, preferably between 30 mm and 150 mm, and more preferably between 40 mm and 150 mm, ensuring a balance between structural support and minimal surface disruption.

[0155] In an embodiment the electrical module is suitable for installation in a surface, such as a wall or part of a piece of furniture; wherein the electrical module comprises: a housing formed by a front side, a rear side, and a casing, wherein the casing extends between the front side and the rear side along a longitudinal direction, and wherein the front side is configured to receive an electrical connector plug; an electrical unit comprising one or more receptacles for forming an electrical connection with a received electrical connector plug, provided in the housing, the receptacle comprising one or more contacts for detachably connecting wiring, and wherein the casing and / or rear side comprises one or more openings providing access to the one or more contacts for said wiring; and characterized in that, the electrical module comprises one or more caps, wherein the one or more caps are connectable to the housing and form a concave cover portion when connected to the housing, wherein the cover portion covers the one or more openings, wherein the one or more caps, when connected to the housing form together with the rear side of the housing aninternal volume surrounding the one or more openings, and wherein any dimension of the one or more caps when connected to the housing, measured perpendicular to the longitudinal direction, is at most 10 mm greater than a corresponding dimension of the housing.

[0156] In a preferred embodiment, the internal volume extends at least 1 cm, preferably at least 1.5 cm, more preferably at least 2.0 cm, in the longitudinal direction measured from the rear side of the housing.

[0157] In a preferred embodiment said internal volume extends in the longitudinal direction beyond the rear side of the housing.

[0158] It is the specific goal of the invention to remove the need for a junction box that is exceedingly large, and requires access to the back side of the surface in which the electric electrical module is to be installed. Very specifically, the cap is not a junction box as it is commonly known, namely an oversized box that needs to be installed from the rear, which is inconvenient (both in installation, maintenance and removal), or via an oversized opening at the front which then needs to be fixed and requires an oversized cover plate (again, inconveniencing installation, removal and maintenance). Instead, the cap is a compact component that is directly mounted onto the housing, and uses the housing to perform the functionalities of a junction box, namely forming a containment volume for electrical connections. Furthermore, providing the majority of the internal volume in the concave cover portion provides the necessary room for on-location connection to existing electrical infrastructure by a technician. By incorporating an internal volume within the cover portion, which is formed by one or more caps, the invention provides sufficient space for electrical connections to be made on location without requiring an additional junction box. This internal volume accommodates the necessary length of electrical wiring, allowing a technician to split and connect conductors efficiently while maintaining compliance with electrical safety standards. The space facilitates the proper bending radius of wires and enough space to effectively cover the striped sections of the wiring that are required for the connections. Further more the internal volume allows for daisy chaining. This ensures that a variety of connections can be securely housed without excessive compression or risk of damage. Furthermore, in conventional systems, electrical connections are often pushed back through a small opening in the junction box before inserting a wall fixture, such as a socket or switch. During maintenance, retrieving these connections requires accessing them through the small opening, which can be challenging and potentially hazardous. Additionally, regulations mayrestrict looping connections through such small openings. By removing the need for a junction box, the invention eliminates the need to retrieve connections manually through a confined space, thereby improving accessibility, safety, and compliance with installation standards.

[0159] Furthermore, the design streamlines the installation process, particularly in scenarios where access to the rear side of the mounting surface is limited or not feasible. The presence of an internal volume within the cover portion allows technicians to establish electrical connections in a controlled and accessible manner, improving both installation efficiency and long-term serviceability. By integrating this function directly into the cap structure, the invention reduces the overall footprint of the installation, such as minimizing the required size of the hole in the mounting surface while ensuring that electrical connections remain safe, reliable, and easily manageable. By accommodating the majority of the internal volume within the concave cover portion, the rear side of the housing can remain substantially flat, thereby providing direct and unobstructed access to the contact points. This considerably simplifies the connection of the wiring, as the small and delicate wire ends are inherently difficult to manipulate, particularly within confined spaces and in more complex types of wire installations such as daisy-chaining multiple outlets, loop-through connections, branching connections with multiple conductors per terminal, or installations using thicker rigid conductors that require precise positioning and secure clamping.

[0160] The compact design of the cover portion enables installation in confined areas, making the electrical module space efficient. The concave-shaped cover portion provides robust protection for electrical contacts, shielding them from dirt, moisture, accidental impacts, and potential damage from household elements such as humidity and temperature fluctuations. This design also offers protection from conductive elements present in the wall or the electrical module, such as fixation screws, wall screws, and concrete iron. Particularly, the design ensures that the fixation screws are covered, preventing any risk of electrocution. By enclosing these screws, the electrical module enhances safety and minimizes the potential for accidental electrical contact. The pressure plate and screw mechanism within the cap ensure that cables remain securely connected and safely enclosed, aiding in compact and efficient installation.

[0161] It is a further objective of the invention to reduce the risk of fire in the event of arcing, overheating, or a short circuit at the contact points. For this purpose, theopenings to the contact points are located within a defined internal volume formed predominantly by the concave cover portion, wherein the internal volume extends at least 1 cm in the longitudinal direction beyond the rear side of the housing and wherein at least 50%, preferably at least 75%, of the internal volume is encompassed by the cover portion. This configuration increases the clearance distance between the contact region and the inner surface of the cover portion, thereby limiting direct arc impingement on the enclosure boundary and reducing thermal transfer to adjacent structural materials. Furthermore, by enclosing the contact region within a sufficiently dimensioned cavity, any sparks, molten particles, or hot gases generated during a fault condition are retained within the internal volume and must dissipate energy before reaching potential escape paths such as joints or cable passages, thereby reducing the likelihood that sufficient thermal energy is transmitted to surrounding wall or furniture materials to initiate ignition. In a preferred embodiment, the cap comprises an internal back wall facing the housing when coupled thereto. Over at least part of the perimeter of the internal back wall, the cap comprises one or more sidewalls extending therefrom substantially perpendicularly. The sidewalls extend towards the housing when the housing and cap are coupled, and define the internal volume, potentially along with sidewalls of the housing which extend from the rear side of the housing, away from the front side, towards the cap. In such configurations, the sidewalls of the two components are complementary (and may overlap in coupling structures) to seal the internal volume. Preferably, the sidewalls of the housing do not extend over the entire perimeter of the rear side, allowing easy access to the rear side. Preferably, the sidewalls leave at least 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65% or more of the perimeter of the rear side of the housing free (of sidewalls). Preferably, the sidewalls of the housing extend at most over 2.5 cm from the rear side, preferably at most 2.0 cm, or even 1.5 cm, 1.0 cm or less.

[0162] In further preferred embodiments, the sidewalls of the cap extend over at least 40% of the perimeter of the internal back wall of the cap, more preferably at least 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80% or more. Preferably, the sidewalls extend over at least 0.5 cm from the internal back wall of the cap, and more preferably at least 1.0 cm, 1.5 cm, 2.0 cm, 2.5 cm or more. This, the cap defines the major part of the internal volume by itself.

[0163] In a preferred embodiment, the cap may be designed to accommodate a range of housing dimensions, optionally allowing for versatility in its application across different electrical module sizes and configurations. This adaptability may preferablybe achieved through the use of flexible materials or adjustable components that can conform to the specific dimensions of the housing. The cap's design optionally ensures that the maximum cross-section of the electrical module remains within the dimensions of the front side, which more preferably maintains the electrical module's compact profile and facilitates its integration into various installation surfaces.

[0164] Particularly, another goal of the invention is that the fixation screws with which the electrical module can be fixed into / onto the surface are positioned within the crosssection of the housing itself (without any flanges), while respecting the requirements of having a minimal insulation surface around the contact points for each type of socket. This removes the need for the fixation screws to be mounted in a substantial flange or another laterally extending element on the electrical module. Such flanges or lateral extensions are visually undesirable, takes up space, and provides difficulties in installation.

[0165] In order to do so, while still respecting electrical safety requirements, the fixation screws need to be electrically insulated both from the contact points, but also internally within the housing, and with respect to the wiring that extends from the rear side of the housing. In the past, this second requirement was easily achieved by using a junction box that physically shields any electrical connections, but this results in substantial inconveniences for installation, maintenance, as well as production.

[0166] As such, the fixation screws extend longitudinally along the axis of the housing, within the confines of the housing.

[0167] In an embodiment, at least 50 % of the internal volume is encompassed by the cover portion. In a further embodiment at least 60 %, and preferably at least 75 %, and more preferably at least 85 % of the internal volume is encompassed by the cover portion.

[0168] In a preferred embodiment the one or more caps comprise receptacles for receiving electrical wiring, and comprise a custom connector, said custom connector being electrically connected to said receptacles and thus to any electrical wiring received by the receptacles, and wherein the contacts of the housing and the custom connectors are configured to form an electrical connection when the one or more caps are connected to the housing.In a further or alternative embodiment, the internal volume extends at least 5 mm, and preferably at least 7 mm, and more preferably at least 10 mm in the longitudinal direction measured from the rear side of the housing. This extension provides a large enough internal volume necessary for different manners of installation.

[0169] In an embodiment, the cover portion and the housing are configured to form a close fit. The close fit refers to the precise alignment and minimal gap between the cover portion and the housing. In a further embodiment this close fit is achieved by fixating the one or more caps to the housing by rotation or sliding, by which means protrusion and / or indentations are configurated to an anchoring configuration. For example, in one configuration, the one or more caps are provided with helical grooves along its inner surface, while the housing includes corresponding ridges. When a cap is rotated, these elements engage in a controlled threading motion, allowing the cap to progressively tighten against the housing while maintaining a precise alignment. This threaded engagement ensures that the cap remains securely in place without additional fasteners. In another embodiment, the one or more caps feature guide rails that align with slotted tracks on the housing. By sliding the cap along these rails, the protrusions on the cover engage with the corresponding indentations in the housing, locking the cover into position. This sliding engagement allows for a smooth yet secure fixation while ensuring the cap remains flush with the housing. Alternatively, the anchoring configuration may employ bayonet-style locking features, where the cap is inserted into the housing and rotated a partial turn to engage complementary locking tabs. These tabs ensure that the cap remains tightly secured against the housing, forming a close fit while allowing for easy removal when needed. In yet another variation, the anchoring configuration can include snap-in latches that engage upon sliding or rotating the cap into position.

[0170] In an embodiment, a maximum cross-section of the housing, measured perpendicular to the longitudinal direction, is located at the front side, and wherein the one or more caps, when connected to the housing, have a cross-section which, measured perpendicular to the longitudinal direction, falls within the dimensions of the maximum cross-section of the housing.

[0171] In a preferred embodiment, the fixation screws are provided with clamping wings which are configured to move (preferably via a rotation of the clamping wings) between a first position and a second position, wherein in the first position, the clamping wing extends outside of the cross-section of the electrical module excluding any frontal lateral extensions such as flanges, and a second position, wherein theclamping wing (8) is received within the cross-section of the electrical module, again excluding any frontal lateral extensions such as flanges. The clamping wings allow the electrical module to be locked behind a surface by moving from the second position into the first position (and reversibly from the first to the second position to free the electrical module, allowing removal).

[0172] Preferably, the movement of the clamping wings is a rotation around the fixation screws. This creates a situation in which screwing the fixation screws in or out can rotate the clamping wings between the two positions.

[0173] In a further preferred embodiment, the clamping wings are longitudinally displaceable (along the longitudinal axis of the electrical module) via the fixation screws. This allows the clamping wings to lock behind the surface for a range of thicknesses of said surface. Again, this is preferably achieved via rotation of the fixation screws.

[0174] Preferably, once the clamping wings are rotated into the first position (outside of the cross-section), the fixation screws move the clamping wings closer to the front side of the electrical module when rotated further (in the same sense as the rotation that led the clamping wings to move from the second to the first position). This can for instance be achieved by blocking further rotation from the clamping wings beyond the first position, and with the clamping wings and fixation screws being connected via a screw thread connection. In this way, as the fixation screws are rotated further, the clamping wings can no longer rotate along with the fixation screws, and instead the fixation screw is screwed "into" the clamping wings, thereby moving the clamping wings towards the front side of the electrical module, as the fixation screws cannot be screwed into the electrical module further than a certain amount.

[0175] According to a preferred embodiment, the front side is circular with a diameter of 39 mm ± 1 mm or there is a circular recess in the front side with an inner diameter of 39 mm ± 1 mm. The front side is preferably circular and recessed into the housing. The fixation screw (preferably with a clamping wing or other type of clamp attached thereto) is placed on a circular outline with a diameter of at most 36 mm, preferably on a circular outline with a diameter of at most 35 mm, more preferably on a circular outline with a diameter of at most 34 mm, even more preferably on a circular outline with a diameter of not more than 33 mm and even more preferably on a circular outline with a diameter of not more than 32 mm. The circular outline and the front side are concentric.This embodiment is particularly advantageous for a socket of type E or F according to the IEC 60083:2015 standard. The smallest possible insulation surface for a socket of type E or F is a circle with a diameter of 39 ± 1 mm. A circular front side with the mentioned diameter or a front side with a circular recess with the mentioned inner diameter is advantageous for obtaining a housing with minimum dimensions for a socket of type E or F. The circular outline of a maximum of 36 mm is advantageous because it means that a fixation screw (preferably with a clamping wing or other type of clamp attached thereto) with a screw head with a diameter of 6 mm falls completely within the circular front side or the circular recess.

[0176] According to a further embodiment, the housing can be placed in an opening in a surface that has an inner diameter of 42 mm ± 3 mm, preferably an inner diameter of 42 mm ± 2.5 mm. This leaves sufficient space around the front side or the recess in the front side for a cylindrical housing with a wall thickness of at least 0.8 mm, while the bore diameter for a hole in which the flush-mounted electrical module is installed remains very limited.

[0177] According to an alternative or further embodiment, the housing can be placed opening in an opening in a surface that has an inner diameter of at most 44 mm, more preferably at most 43.5 mm, even more preferably at most 43 mm and even more preferably at most 42.5 mm.

[0178] In an alternative or further embodiment, the housing can be placed opening in an opening in a surface that has an inner diameter of at least 40 mm, more preferably at least 40.5 mm, even more preferably at least 41 mm and even more preferably at least 41.5 mm.

[0179] In an alternative or further embodiment, the housing can be placed opening in an opening in a surface that has an inner diameter of 44 mm ± 4 mm. The fixation screw (preferably with a clamping wing or other type of clamp attached thereto) of the at least one clamp is placed on a circular outline with a diameter of at most 36 mm, preferably on a circular outline with a diameter of at most 35 mm, more preferably on a circular outline with a diameter of at most 34 mm, even more preferably on a circular outline with a diameter of not more than 33 mm and even more preferably on a circular outline with a diameter of not more than 32 mm. The circular outline and the front side are concentric.This embodiment is particularly advantageous for a type G socket according to the IEC 60083:2015 standard. A type G socket requires at least 3 mm of insulation material around the openings for the socket contact points. The enveloping circle for the smallest possible insulation surface for the type G socket fits within an installation opening with an internal diameter of 44 mm ± 4 mm. There is sufficient space for a cylindrical housing with a wall thickness of at least 0.8 mm, while the bore diameter for a hole in which the flush-mounted electrical module is installed remains very limited. The circular outline of a maximum of 36 mm is advantageous because it allows a fixation screw (preferably with a clamping wing or other type of clamp attached thereto) with a screw head with a diameter of 6 mm to fit completely within the housing.

[0180] The enveloping circle of a type G socket is a circumscribed circle of a triangle. A circumscribed circle is a circle that passes through all vertices of the triangle. A type G socket has a rectangular opening to a grounding contact point, usually marked with the letter E ("Earth"), a rectangular opening to a phase connection contact point, usually marked with the letter L ("Line"), and a rectangular opening to a contact point for a neutral connection, usually indicated by the letter N ("Neutral"). Each rectangular opening has a long and a short axis of symmetry. A first vertex of the triangle is located on the long axis of symmetry from the rectangular opening to the ground contact point, at a distance of 3 mm from said rectangular opening, measured along the long axis of symmetry, and away from the two remaining rectangular openings. A second vertex of the triangle is located along both the long axis of symmetry and the short axis of symmetry from the rectangular opening to the contact point for the phase connection, at a distance of 3 mm from the said rectangular opening, and away from the two other rectangular openings. A third vertex of the triangle is located along both the long axis of symmetry and the short axis of symmetry from the rectangular opening to the contact point for the neutral connection, at a distance of 3 mm from the said rectangular opening, and away from the two other rectangular openings. A center of the circumscribed circle of the triangle is determined by an intersection of perpendicular bisectors on at least two sides of the triangle. A radius of the circumscribed circle is equal to a distance from the center to a vertex of the triangle.

[0181] Preferably the housing can be placed opening in an opening in a surface that has an inner diameter of at most 47 mm, more preferably at most 46 mm, even more preferably at most 45 mm and even more preferably at most 44.5 mm.Preferably the housing can be placed opening in an opening in a surface that has an inner diameter of at least 41 mm, more preferably at least 42 mm, even more preferably at least 43 mm and even more preferably at least 43.5 mm.

[0182] According to a preferred embodiment, the housing can be placed opening in an opening in a surface that has an inner diameter of 36.5 mm ± 3 mm. The fixation screw (preferably with a clamping wing or other type of clamp attached thereto) of the at least one clamp is placed on a circular outline with a diameter of at most 28.5 mm, preferably on a circular outline with a diameter of at most 28 mm, more preferably on a circular outline with a diameter of at most 27.5 mm, even more preferably on a circular outline with a diameter of not more than 27 mm and even more preferably on a circular outline with a diameter of not more than 26.5 mm. The circular outline and the front side are concentric.

[0183] This embodiment is particularly advantageous for a type B socket according to the IEC 60083:2015 standard. The enveloping circle for the smallest possible insulation surface for the type B socket fits within an installation opening with an internal diameter of 36.5 mm ± 3 mm. There is sufficient space for a cylindrical housing with a wall thickness of at least 0.8 mm, while the bore diameter for a hole in which the flush-mounted electrical module is installed remains very limited.

[0184] Preferably the housing can be placed opening in an opening in a surface that has an inner diameter of at most 39 mm, more preferably at most 38 mm, even more preferably at most 37.5 mm and even more preferably at most 37 mm.

[0185] Preferably the housing can be placed opening in an opening in a surface that has an inner diameter of at least 32 mm, more preferably at least 34 mm, even more preferably at least 35.5 mm, even more preferably at least 36 mm and even more preferably at least 39 mm.

[0186] In a further or alternative embodiment, the electrical module features a single cap with integrated wiring openings, designed to simplify assembly by reducing the number of components needed for installation. By incorporating the wiring passage directly into the cap, the necessity for additional components or external conduits for cable entry is streamlined. This design choice simplifies the installation process, minimizes the electrical module's footprint, and confines all electrical connections within the cap's concave shape. Consequently, the electrical module can be efficiently installed within walls or furniture without exceeding the housing'smaximum cross-section, Allowing the electrical module to be installed in a single step, independently of external factors such as wall placement or the positioning of a junction box, which would otherwise require coordination and increase the risk of errors. Additionally, using a single cap with integrated wiring openings aims to lower manufacturing costs and streamline assembly. By merging multiple functions into one component, the production process is streamlined, potentially leading to cost savings and increased efficiency. This approach may also enhance the product's environmental sustainability by reducing material usage and waste during manufacturing. In summary, the streamlined embodiment of the electrical module with a single cap and integrated wiring openings offers advantages such as reduced complexity, improved cable alignment, enhanced safety, and potential cost savings, collectively contributing to a more efficient and reliable installation process. In further embodiments, the dimensions of the electrical module can be tailored to meet specific installation requirements. For instance, the cross-section of the electrical module can be adjusted to fit within a range of sizes, thereby enhancing its versatility and applicability across different installation scenarios. This adaptability ensures that the electrical module can be seamlessly integrated into a wide variety of surfaces, catering to diverse user needs and preferences.

[0187] In another preferred embodiment, the electrical module incorporates at least two caps with integrated wiring openings. This design is intended to reduce the complexity and time required for assembly by minimizing the number of components involved in the installation process. By integrating the wiring passage directly into the caps, the need for additional components or external conduits for cable entry is preferably eliminated. This approach optionally simplifies the installation process, reduces the overall footprint of the electrical module, and ensures that all electrical connections remain confined within the predefined concave shapes of the caps. As a result, the electrical module may be compactly and efficiently placed within walls or furniture without any protrusions beyond the housing's maximum cross-section. Furthermore, the design facilitates easier assembly in confined spaces where maneuvering around the wire is challenging, enhancing the practicality of the installation process.

[0188] In a preferred embodiment, the electrical module incorporates at least three caps with integrated wiring openings. This design is intended to reduce the complexity and time required for assembly by minimizing the number of components involved in the installation process. By integrating the wiring passage directly into the caps, the need for additional components or external conduits for cable entry is preferablyeliminated. This approach optionally simplifies the installation process, reduces the overall footprint of the electrical module, and ensures that all electrical connections remain confined within the predefined concave shapes of the caps. As a result, the electrical module may be compactly and efficiently placed within walls or furniture without any protrusions beyond the housing's maximum cross-section.

[0189] In a more preferred embodiment, the electrical module's cap may be configured to accommodate a range of cable sizes and types, such as for example Romex, armored and reflex cables, PVC insulated and metal shielded cables, providing flexibility in various installation scenarios. The cap's design optionally allows for a secure fit, ensuring that the cables are held firmly in place without the need for additional securing mechanisms. This integrated approach to cable management not only enhances the aesthetic appeal of the electrical module by concealing the wiring but also minimizes the risk of damage from external factors such as dust or accidental impact. Moreover, in another preferred embodiment, the cap may include additional features such as a sealing mechanism or an aesthetic finish that aligns with the overall design of the installation surface. These optional enhancements may preferably contribute to the electrical module's overall functionality and visual appeal, providing a seamless and cohesive appearance when installed. The cap's design may optionally incorporate materials that are resistant to environmental factors such as dust, moisture, or temperature fluctuations, more preferably ensuring that the electrical module remains protected and operational in diverse conditions.

[0190] The housing may optionally be constructed from a non-conductive material, providing an additional layer of safety by minimizing the potential for electrical conduction through the housing itself.

[0191] In one embodiment, one or more caps enclose the housing up to its front side. In this configuration, the cap forms a cover that fully envelops the rear side and the mantle of the housing, extending up to the front side. The housing is mounted within this cover, providing structural support and protection. In an alternative or further embodiment the one or more caps enclose part of the housing. For example, the one or more caps form a cover that envelopes the rear side and / or a section of the mantle, wherein the section may vary in circumference and in longitudinal length between the front and rear side.In a further embodiment, the one or more caps form a cover that comprises a flange surrounding the front side of the housing. This flange may serve as a sealing or mounting interface, ensuring a secure fit and potentially enhancing mechanical stability or environmental protection.

[0192] In an embodiment, a dimension of the housing, measured perpendicular to the longitudinal direction, is at most 10 mm, and preferably at most 7.5 mm, and more preferably at most 5 mm or even 2.5 mm smaller than a corresponding dimension of the cover portion. In a further embodiment the housing and the cover are closefitting, with preferably substantially no gap between the cover formed by the one or more caps and the housing. Note that flanges, if present, are not taken into consideration for this, as they are arbitrary widenings simply provided to serve as a limiter for the insertion of the electrical module into an opening.

[0193] In a preferred embodiment the electrical module comprises on or more caps wherein the one or more caps are detachably connected to the housing without any screws. The electrical module, in its preferred embodiment, features a screwless cap connection that simplifies both installation and maintenance. This design allows the cap to be detachably connected to the housing, enabling tool-free assembly and disassembly, which is particularly beneficial for individuals with limited technical expertise. Skilled professionals also benefit from this feature, as it enhances safety by preventing unintended cable disconnections and efficiency by simplifying the installation process. The cap's attachment mechanism facilitates easy, tool-free assembly by a single person, ensuring secure fastening to the housing and enhancing the convenience and efficiency of the installation process. The cap includes longitudinally extending arms that engage with slots in the housing through a snap-fit connection, allowing for detachment and reattachment without screws. This simplifies maintenance and reduces the risk of losing small components during assembly or disassembly, thus saving time, and increasing the electrical module's overall efficiency. The detachable cap is designed to be installed after wiring connections, ensuring cables are aligned at an effective angle, minimizing wear, and potentially extending their lifespan while enhancing electrical safety. The cap design allows flexibility in securing the cable post-installation, enabling installers to adjust cable positioning without additional tools. This screwless cap connection offers versatility and adaptability for various installation scenarios, making it suitable for environments where ease of access and maintenance are crucial, such as residential and commercial settings. The ability to easily detach and reattach the cap facilitates routine inspections and repairs, maintaining the electrical module's performance andreliability. Overall, this embodiment of the electrical module offers a user-friendly solution that prioritizes functionality and convenience.

[0194] In an embodiment the invention comprises the wherein the housing is substantially cylindrical. In a preferred embodiment the rear side comprises the one or more openings.

[0195] In a preferred embodiment, the electrical module features a substantially cylindrical housing, which may optionally enhance the structural integrity of the electrical module. This design potentially reduces stress associated with installation, providing a more robust and reliable setup. Preferably, the compact nature of the housing allows it to occupy minimal space, making it more suitable for installation in environments where space conservation is a priority.

[0196] In an alternative or further embodiment, the cover portion comprises a back side and a front side, wherein the front side is detachably connectable to the housing, and wherein said back side comprises a wiring opening that forms a passage to the one or more contact points for said wiring when the one or more caps are connected to the housing. By entering the wiring through the back side of the cover, the connection between the housing and the cover is not compromised, ensuring safety, and the full internal volume can be utilized for the desired connection of the wiring to the contacts of the electrical unit. In a further embodiment, the wiring opening is formed by recesses in multiple caps that align when the caps are assembled onto the housing. Each cap features a precisely shaped cutout along its edge, and when positioned together, these cutouts combine to create a continuous passage that accommodates the necessary wiring without compromising the structural integrity of the enclosure. This modular approach allows flexibility in installation, enabling adjustments to the wiring path as needed. In an alternative embodiment, a single cap incorporates the wiring opening, forming the back side of the cover portion. This cap is designed to fit securely onto the housing while providing a dedicated passage for wiring, ensuring easy access to the contact points without requiring modifications to the other components. The wiring opening may be positioned centrally or offset, depending on the configuration of the electrical module and the direction from which the conductors enter.

[0197] In another embodiment the invention relates to a electrical module that comprises a single cap forming the concave shape, wherein said cap comprises a wiring openingat the rear side of the cap. The wiring opening that forms a passage to the one or more contact points for said wiring.

[0198] Integrating a single cap with the wiring opening simplifies the assembly process by reducing the number of components required during installation. This design choice lowers the complexity usually linked with assembling electrical units, as fewer parts mean fewer opportunities for error. By incorporating the wiring opening directly into the cap, the need for extra components or separate assembly steps is removed, thereby streamlining the entire procedure. As a result, installation time is significantly reduced, allowing installers to concentrate on securing the electrical module without the distraction of managing multiple parts. Additionally, this method minimizes the risk of unnecessary extra pieces or screws. This efficient design not only saves time but also boosts the reliability of the installation by decreasing the chances of assembly mistakes. By integrating the wiring passage into the cap, the need for extra components or external conduits for cable entry is removed. This reduces installation complexity, minimizes the electrical module's footprint, and ensures all electrical connections remain within the predefined concave shape, allowing for compact placement in walls or furniture without exceeding the housing's maximum cross-section.

[0199] In a preferred embodiment the electrical module comprises a cap and the cap comprises one or more longitudinally extending arms, each configured to engage with the housing to secure the cap to the housing. In this embodiment the term arm in no way limits the width of the arms along the perimeter of the caps.

[0200] In a preferred embodiment the device comprises a cap and the cap comprises one or more arms, each configured to engage with the housing, extending along the length of the housing in a direction parallel to the front side of the housing, to secure the cap to the housing. In this embodiment the term arm in no way limits the width of the arms along the perimeter of the caps.

[0201] In an further or alternative embodiment said one or more arms extend along at most 95 %, and preferably at most 80 %, and more preferably at most 60 %, and more preferably at most 50 %, and more preferably at most 40 %, and more preferably at most 30 % of the perimeter of the one or more caps when connected to the housing.Preferably, the cap is detachably connected to the housing, allowing for easy installation and maintenance. The longitudinal extension of the cap may optionally be achieved through the use of arms that engage with slots in the housing. This connection method more preferably eliminates the need for screws, thus simplifying the assembly process and reducing the risk of accidental disassembly.

[0202] In another preferred embodiment the electrical module wherein said engagement is facilitated by a snap-fit connection. In this preferred embodiment, the electrical module for surface installation features a housing with a snap-fit connection, facilitating smoother installation and reducing the need for screws or additional fastening tools. The design includes a housing that interacts with a cap through longitudinally extending arms that engage with corresponding slots in the housing. This snap-fit mechanism provides a secure yet detachable connection, allowing quick access to internal components without screws, simplifying assembly and minimizing the risk of losing small parts. The detachable cap ensures reliable connections at contact points and prevents accidental disconnections while minimizing cable wear by keeping cables securely connected and safely enclosed. The cap is designed to accommodate wires even in tight spaces or with shorter lengths, making electrical connections straightforward. The snap-fit connection keeps the cap securely in place under external forces or vibrations, enhancing the electrical module's durability and longevity in various installation environments. Tool-free assembly is achieved by applying moderate pressure to snap the cap into place, ensuring a firm connection with the housing. The snap-fit connection is preferably configured to provide a reliable engagement between the cap and the housing, ensuring the cap remains securely attached during use. This configuration may eliminate the need for traditional fastening methods such as screws, thereby simplifying the installation process. By reducing the number of components required for assembly, the preferred embodiment of the electrical module offers a more streamlined and efficient installation experience. In addition, the snap-fit connection may be designed to accommodate a range of housing sizes and shapes, providing versatility in its application. Preferably, the engagement mechanism is robust enough to withstand repeated attachment and detachment without compromising the integrity of the connection. This feature may be particularly advantageous in environments where frequent maintenance or reconfiguration of the electrical module is necessary. The use of a snap-fit connection in this preferred embodiment may also contribute to the overall compactness of the electrical module. By integrating the fastening mechanism into the design of the housing and cap, the electrical module canmaintain a low profile, making it suitable for installation in a variety of surfaces, such as walls or furniture. This compact design may be further enhanced by the elimination of external fastening elements, resulting in a cleaner and more aesthetically pleasing appearance. Moreover, the snap-fit connection may be optimized to provide a tactile or audible indication when the cap is properly engaged with the housing. This feedback mechanism can be particularly beneficial in ensuring a secure and reliable installation, providing users with confidence that the electrical module is correctly assembled. Overall, the preferred embodiment of the electrical module with a snap-fit connection may offer significant advantages in terms of ease of installation, versatility, and aesthetic appeal, making it a desirable choice for various applications.

[0203] In an embodiment where the housing comprises only one receptacle, the housing, excluding any flange at the front side thereof, has a maximum diameter of 6.0 cm, and preferably a maximum diameter of 5 cm, and more preferably a maximum diameter of 4 cm, and wherein if the housing comprises two or more receptacles along a width direction, the housing, excluding any flange at the front side thereof, has a maximal dimension of 12.0 cm, and preferably a maximum dimension of 10 cm, and more preferably a maximum dimension of 8 cm, perpendicular to the width direction in the plane of the front side of the housing.

[0204] In a further or alternative embodiment where the housing comprises only one receptacle, a smallest enclosing circle is defined around a minimal insulation surface around the contacts of the receptacle, the minimal insulation surface being an area of at most 4.0 mm, and preferably at most 3 mm around the perimeter of the contacts, wherein the housing comprises one or more fixation screws for securing the electrical module in the surface, and wherein the central axis of the fixation screws is positioned within said smallest enclosing circle, and wherein the housing, excluding any flange at the front side thereof, has a maximum diameter of at most 10 mm, and preferably a maximum diameter of at most 8 mm, and more preferably a maximum diameter of at most 6 mm greater than the diameter of the smallest enclosing circle.In an embodiment the electrical module wiring opening is provided in a wiring passage surface. In an even further embodiment, a (preferably slidable ) clamping element is provided in said wiring passage surface for clamping wiring as a strain relief.

[0205] The current embodiment features a wiring passage with a strain relief mechanism that securely holds connected cables, enhancing the safety and reliability of electrical connections. The cap includes a wiring opening on an inclined surface, facilitating easy cable entry and optimal alignment, which reduces mechanical wear and maintains connection integrity over time. The electrical module includes adjustable clamping elements to fit various surface thicknesses, increasing compatibility across different installation settings and ensuring a secure fit, thereby streamlining the installation process. This adaptability saves time and effort while preventing unintended cable disconnections, contributing to a safer and more durable electrical connection.

[0206] In a preferred embodiment, the invention relates to an electric electrical module designed for installation in a surface, featuring an (optionally slidable) clamping element. This clamping element can be (preferably slidably) adjusted between a first and second position, where the wiring passage is reduced as the clamping element moves towards the second position. It can also be fixed in an intermediate position with the slidable clamping element, or the first position can be adjusted with an adjustable blocking element to accommodate different cable sizes. The clamping element preferably offers adjustable strain relief, which helps secure the wiring and minimize potential disconnections and damage. The electrical module includes a wiring passage with a strain relief mechanism to ensure connected cables remain securely in place. This is particularly useful for preventing unwanted cable disconnections, which can lead to electrical failures or hazards. Additionally, the design can provide an organized, enclosed connection area, reducing exposure to dust and damage, thereby improving the overall safety and reliability of the installation.

[0207] In a preferred embodiment, the wiring passage surface is slanted with respect to the front of the housing when the cap is mounted to the housing. Preferably, the clamping element is slidably mounted in the wiring passage surface via at least one groove which extends in the wiring passage surface as a guiding channel for the clamping element between the first and second position.In a preferred embodiment, the blocking element comprises a pressure plate, which is adjustable in a direction perpendicular to the front side of the housing, preferably via a screw that is perpendicularly oriented to said front side, with the pressure plate being configured for exerting a force on the clamping element perpendicular to the front side.

[0208] In a preferred embodiment, the wiring passage surface is oriented under an angle of at least 10°, preferably at least 20°, and more preferably at least 30°, and more preferably at least 45° with respect to the front side of the housing.

[0209] In a preferred embodiment, the wiring passage surface at the end of the second position comprises a, preferably concave, wiring support surface, for clamping the electrical wiring or cable between the wiring support surface support surface and a, preferably concave, clamping support surface of the clamping element on the side facing the second position.

[0210] In a further preferred embodiment, the clamping support surface and the wiring support surface are oriented obliquely to the longitudinal axis of the electrical module and are at least partially directed radially outwards.

[0211] In a preferred embodiment, the clamping support surface has a top edge on its most distal side relative to the housing, and the cable support surface has a top edge on its most distal side relative to the housing when the cap is attached to the housing, the top edge of the wiring support surface being more distal relative to the housing than the top edge of the clamping support surface.

[0212] In a preferred embodiment, the electrical module includes adjustable clamping wings that offer flexibility, allowing the electrical module to be securely installed on various surface thicknesses and configurations. The adjustable nature of these clamping wings makes the electrical module suitable for diverse installation environments, particularly for surface thicknesses ranging from 20 to 30 millimeters, preferably from 15 to 35 millimeters, more preferably from 10 to 40 millimeters, even more preferably from 5 to 50 millimeters. This adaptability ensures that the electrical module can be securely attached to different surfaces, including walls and furniture of varying thicknesses. The clamping wings are optionally designed to expand or retract as needed, providing a secure fit without additional tools or modifications to the installation surface. Preferably, the wings are made from a resilient material thatallows them to maintain their shape and function during repeated installations and adjustments.

[0213] Furthermore, in a further embodiment, the ergonomic design of the clamping wings facilitates handling and adjustment by the installer. This design enhances the overall user experience, making the installation process simple and efficient. The wings may also feature textured surfaces or grip-enhancing characteristics that assist in manual adjustments, allowing the installer to achieve a precise fit with minimal effort. Additionally, the inclusion of these adjustable clamping wings in the electrical module design can contribute to a reduction in installation time and complexity, by eliminating the need for additional fastening components or complex installation methods, allowing the electrical module to be quickly and easily attached to the desired surface. This streamlined installation process not only saves time but also reduces the likelihood of errors or damage to the installation surface, making the electrical module more appealing as a versatile and user-friendly solution for electrical installations.

[0214] In an embodiment, the electrical module further comprises a flange and one or more fixation screws for securing the electrical module in the surface. The flange defines the maximum cross-section of the electrical module, wherein the one or more fixation screws are oriented longitudinally and are entirely positioned radially inward of the flange, within the surface area enclosed by the area enclosed by the inner perimeter of the flange.

[0215] In an optimized embodiment, the electrical module is designed to ensure that the entire unit, including fixation screws, fits neatly within the flange. This provides a streamlined installation profile that remains unobtrusive, preserving a sleek appearance. The flange can be configured to allow the electrical module to be flush with the surface, enhancing aesthetics and ensuring compatibility with various designs. Additionally, the flange offers extra support, simplifying installation and enhancing the reliability of electrical connections. The electrical module's design compensates for surface or alignment imperfections, reducing precise alignment needs and minimizing connection errors. The flange accommodates slight variations in surface or electrical module position, ensuring secure attachment and reliable connections. The compact nature of the electrical module, with components fitting within the flange, is beneficial where space is limited, allowing for efficient use of space in environments with multiple electrical modules. This contributes to a cleaner appearance, desirable in modern design. The electrical module includes features foreasy maintenance and replacement, such as a detachable cap for quick access to internal components, reducing downtime and maintenance costs. Overall, the design balances functionality, aesthetics, and ease of installation, making it versatile for various applications. The electrical module features a cap design accommodating fixation screws longitudinally without increasing cross-sectional dimensions, enhancing protection against electrical shortcuts by securely enclosing contact points and wiring entries. The cap forms a concave shape that fully encloses contact points and wiring openings, extending longitudinally as part of the housing. The electrical module includes clamping wings within the flange, adjustable between expanded and retracted positions, allowing secure fixation within the wall or furniture while simplifying installation. Clamping elements provide a firm grip on the installation surface, ensuring the electrical module remains securely in place. This embodiment offers a compact, easy-to-install solution enhancing safety and reliability by minimizing electrical shortcut risks and providing a secure, enclosed connection area.

[0216] In another preferred embodiment, the clamping wings are preferably adjustable between an expanded and a retracted position. This adjustment capability is optionally provided to ensure secure fixation within the wall or furniture, while also keeping the installation process simple and efficient. The ability to adjust the clamping wings may optionally be advantageous in accommodating various installation conditions and surface thicknesses, thereby providing a versatile solution for different applications. This integration may optionally contribute to reducing the number of separate components required for assembly, thus potentially lowering manufacturing costs and simplifying the assembly process. The compact design achieved by this integration is more preferably beneficial in applications where space is limited, such as in modern furniture or slim wall constructions.

[0217] In a further embodiment, the invention describes a electrical module, wherein ends of the one or more fixation screws extend longitudinally beyond the rear side.

[0218] In an even further embodiment, the cap comprises one or more first lateral recesses, shaped in accordance with said ends to accommodate the enclosure of the one or more openings. In an even more further embodiment, the fixation screws extend outside of the concave shape of the cap. The technical effect is achieved by ensuring that the fixation screw does not come into contact with any conductive elements, thereby preventing any risk of electrical short circuits or electrocution. Consequently, there are no exposed contact points. This embodiment combines both safety and functionality, providing a secure and efficient solution.In a preferred embodiment the invention comprise the electrical module wherein the ends of the one or more fixation screws are positioned within, or adjacent to, sections of the housing. The sections of the housing that extend longitudinally beyond the rear side. The one or more first lateral recesses are shaped in accordance with said sections to accommodate the enclosure of the one or more openings.

[0219] In this embodiment, the electrical module features a cap design that allows for the integration of fixation screws extending longitudinally, ideally without increasing the electrical module's cross-sectional dimensions. This setup enhances safety by securely enclosing the contact points and wiring entries, thus minimizing the risk of electrical shorts. The screws are strategically positioned to be as distant as possible from the electrical contact points, further reducing the potential for electrical shorts. The cap is designed to integrate seamlessly with the housing, ensuring the electrical module remains compact. Additionally, in this embodiment, the electrical module includes clamping wings integrated within the cap's recesses. This streamlined design enhances the electrical module's compactness, making it less obtrusive when installed. The cap also includes secondary lateral recesses to accommodate the clamping wings, allowing them to fit seamlessly within the electrical module's concave shape. This configuration ensures a compact design while securely fixing the electrical module within the installation surface.

[0220] In an embodiment the invention relates to a electrical module, wherein said one or more fixation screws comprise one or more clamping wings configured for clamping or fixing the electrical module in the surface. The cap comprises one or more second lateral recesses configured for receiving at least part of said clamping wings within the cross-section of the concave shape. The second lateral recesses are preferably in or are comprised in the first lateral recesses.

[0221] Fixing the electrical module into the surface can be implemented directly with respect to the surface, by clamping against or behind part of the surface, but can also be performed indirectly, for instance by using an attachment element that can be attached to the surface, and which is used to clamp the electrical module against or behind. Such an attachment electrical module can for instance be a plaster element that is specifically designed and configured for being provided against a wall or other surface, and covered with plaster or a similar building material.

[0222] In a further embodiment the invention comprises a electrical module according wherein each clamping wing is configurable between a first position, wherein the clamping wing extends outside of the cross-section of the concave shape, and asecond position, wherein the clamping wing is received within the second lateral recess.

[0223] The clamping elements of the electrical module can be adjusted between an expanded and retracted position, ensuring secure fixation within the wall or furniture while keeping the installation process simple and efficient. This adjustability is particularly advantageous as it allows for a versatile installation process, accommodating various surface thicknesses and ensuring a snug fit. The inclined surface of the wiring opening further aids in the alignment of cables, promoting an orderly and efficient wiring process.

[0224] In a second aspect the invention pertains to a method for installing an electrical module in a surface, such as a wall or piece of furniture; wherein said electrical module comprises an electrical unit comprised in a housing, and one or more caps, said caps detachably connectable to the housing; wherein the method comprises the steps of: aligning a mounting plate and a surface opening, wherein the mounting place comprises a mounting opening, wherein the mounting plate comprises a portion extending radially around the mounting opening, whereby the mounting opening and the surface opening align, and whereby said portion extending radially overlaps with surface surrounding the surface opening; passing wiring through the mounting opening from a back side of the mounting opening; connecting contacts of the electrical unit to the wiring to form an electrical connection between the electrical unit and an external power source connected to the wiring, said connection passing one or more openings in the housing, said openings preferably being provided at a rear side of the housing; connecting one or more caps to the housing, whereby said one or more caps form a cover portion when connected to the housing, and whereby said cover portion encloses the one or more openings in the housing; passing the cover portion into or through the mounting opening; passing the housing into or through the mounting opening; securing the electrical module within the mounting plate.

[0225] This method streamlines the installation process by requiring only the placement of the mounting plate over the surface opening to install the electrical module, thereby eliminating additional mounting components. In conventional systems, separate electrical modules are typically required for both securing the electrical module and covering the mounting area with plaster or other finishing materials, necessitating multiple alignment and attachment steps. By integrating these functions into a singlemounting plate, the method significantly reduces the number of steps, simplifying both installation and post-installation finishing. Furthermore, the placement of one or more caps on the housing to form a cover portion eliminates the need for a separate junction box, which is commonly used to house electrical connections. By integrating this function into the module itself, the method simplifies installation while also minimizing the required surface opening, as no additional space is needed to accommodate a junction box or allow for its access. This compact approach allows for a smaller and more discreet installation footprint, reducing material removal and preserving the integrity of the mounting surface. Additionally, by passing both the cover portion and the housing through the mounting opening, the entire installation process can be completed from the front without requiring access to the back of the installation surface. This is particularly advantageous in tight spaces, retrofitting scenarios, and pre-existing installations, where rear access may be difficult or impractical. The ability to install the module entirely from the front enhances efficiency, reduces labor costs, and eliminates the need for additional clearance behind the mounting surface, further minimizing the installation footprint while ensuring a secure and accessible electrical connection.

[0226] In an embodiment, the one or more caps are connected to the housing by means of a snap-fit connection.

[0227] In a further or alternative embodiment, the cover portion comprises a back side and a front side, wherein the front side is detachably connectable to the housing, and wherein the back side of the covering portion comprises a wiring opening, and wherein the method further comprises the step of passing the wiring trough the wiring opening before connecting the wiring to the contacts.

[0228] In a further or alternative embodiment, the step of securing the electrical module within the mounting plate comprises adjusting the configuration of a clamping wing to anchor said clamping wing to the mounting plate, wherein said adjusting comprises rotating an axis-like component extending between a front side of the housing and the clamping wing.

[0229] In a further or alternative embodiment, the mounting opening is a passage extending in the direction perpendicular to the mounting plate, wherein the method further comprises the step of adjusting the position of the passage relative to the mounting plate along the direction perpendicular to the mounting plate.In a further or alternative embodiment, the mounting opening is a passage extending in the direction perpendicular to the mounting plate, wherein the method further comprises the step of adjusting the position of the passage relative to the mounting plate along the direction perpendicular to the mounting plate. This step enables precise control over the installation depth of the electrical module, ensuring that it is optimally positioned without requiring additional structural modifications. By incorporating an adjustment step, the method accommodates variations in wall thickness or finishing layers, reducing the need for corrective measures after installation and streamlining the overall process.

[0230] In a further embodiment, said adjusting comprises the step of rotating the passage relative to the mounting plate. The passage is rotated about an axis perpendicular to the mounting plate, enabling controlled forward or backward movement along this axis to modify the installation depth. This step allows for precise and incremental depth modification during installation, ensuring that the passage can be positioned at an optimal depth without requiring additional fasteners, locking mechanisms, or manual repositioning. By enabling gradual adjustments, rotation provides fine control to accommodate various wall finishing materials of differing thicknesses. Furthermore, rotational adjustment simplifies handling, reduces installation effort, and accelerates the process by allowing the depth to be modified without requiring disassembly. This method step ensures that installers can fine-tune the depth of the electrical module even after partial installation, eliminating the need to remove or reposition components. As a result, labor time is reduced, the risk of installation errors is minimized, and overall efficiency is improved, particularly in scenarios where precise positioning is essential.

[0231] In a further or alternative embodiment, the method further comprises the step of securing the passage in the adjusted position to prevent unintended movement after installation. This step ensures that once the desired depth is reached, the passage remains fixed, maintaining alignment and stability. The securing step simplifies the installation by eliminating the need for post-adjustment corrections and ensuring long-term reliability.

[0232] In a further or alternative embodiment, the adjusting step comprises setting the passage into predefined engagement positions, allowing the installer to quickly achieve a repeatable depth setting. This reduces the need for precise manual calibration and ensures that installation depth remains consistent across multiple installations, improving efficiency and reducing the margin for error.In an alternative embodiment, the adjusting step includes extending or retracting the passage through a telescoping movement, enabling smooth and continuous depth modification. This method step allows for depth positioning without requiring rotational adjustments, making it particularly useful in constrained spaces where rotation is impractical. By incorporating an extension-based adjustment step, the method enables fast and adaptable depth positioning during installation.

[0233] In a further embodiment, the method comprises the step of applying controlled pressure to adjust the passage's depth. This adjustment may be achieved by pressing the passage into the mounting plate until it reaches the desired depth, where it is retained by friction, locking tabs, or compression fittings. Controlled pressure adjustment enables quick and tool-free installation, making it particularly beneficial in applications where traditional fastening methods are impractical or timeconsuming. By integrating a pressure-based adjustment step, the method enhances adaptability while simplifying the installer's workflow, reducing installation time, and ensuring a stable and secure final positioning.

[0234] In an alternative embodiment, the method does not comprise the step of passing the cover portion into or through the mounting opening. Instead, the method comprises the step of passing the housing into or through the mounting opening to connect one or more caps to the housing. In this embodiment, the one or more caps are positioned at the back of the mounting opening and engage the housing upon insertion, ensuring that the one or more openings in the housing are covered when the housing is received by the mounting opening.

[0235] In a further embodiment, the method comprises a configuration wherein only a single cap is provided, said cap being connectable to the back of the mounting opening. Upon insertion of the housing, the single cap engages with and encloses the one or more openings in the housing, thereby forming a protective cover portion. The cap may be designed for detachable engagement, allowing for maintenance access, or may be permanently fixed to ensure a sealed enclosure around the wiring connections.

[0236] In another embodiment, the one or more caps are integrally formed as part of the mounting plate, such that the mounting plate itself comprises a cover portion at the back of the mounting opening. This integrated cover portion ensures that, upon insertion of the housing, the one or more openings are immediately enclosed without requiring additional assembly steps. The integrated cover portion may be designedto be flexible or rigid, and optionally include sealing features such as gaskets or snap-fit engagement to enhance environmental protection.

[0237] In a further embodiment, the wiring is passed through a wiring opening in the one or more caps before the housing is inserted into the mounting opening, wherein the one or more openings in the housing remain accessible until the housing is fully seated in the mounting opening. This configuration ensures that the wiring process can be completed with full visibility and access before the final securing of the electrical module, as the wiring is connected to the contacts of the housing prior to engagement with the one or more caps.

[0238] In an alternative embodiment, the wiring is passed through a wiring opening in the one or more caps before the housing is inserted into the mounting opening, wherein the one or more caps are configured to allow the wiring connection to be established via the caps. In one example, the one or more caps include a push-in wire connection mechanism, wherein the wiring is guided through a tube-like entrance in the cap and pressed into an internal spring-loaded terminal that secures the wire upon insertion. This allows for a quick and tool-free electrical connection while ensuring firm contact with the housing's electrical contacts. In another example, the one or more caps comprise a removable section or hinged panel, allowing the wiring to be inserted and connected after the housing has been fully received in the mounting opening. This configuration ensures that the wiring remains protected while also maintaining accessibility for future modifications or maintenance.

[0239] In an alternative embodiment, the wiring connections are made through prepositioned terminals that are accessible from the mounting plate. Upon insertion of the housing into the mounting opening, the electrical contacts of the housing automatically engage with the terminals in the mounting plate, ensuring a secure and tool-free connection. This embodiment eliminates the need for manual wiring inside the housing, further simplifying installation and reducing installation time.

[0240] In another embodiment, the mounting plate includes integrated wire management channels that guide and secure the wiring before the housing is inserted. This ensures an organized and structured approach to wiring, preventing misalignment or excessive wire bending, and facilitating ease of connection once the housing is positioned within the mounting opening.In another or an alternative embodiment, the method comprises securing the mounting plate to a part of an internal structure of a wall, such as a stud, support frame, or embedded fixture. The mounting plate is affixed in its intended position before the wall surface is installed, ensuring stable and precise placement of the mounting opening. After the mounting plate is secured, the wall is placed around the mounting opening, with the surface material, such as drywall, paneling, or another finishing material, aligning with the mounting opening of the mounting plate. Before or after the wall is in place, the electrical module is inserted into the mounting opening and secured accordingly, after the wiring is connected.

[0241] In an further or alternative embodiment the electrical module comprises: a housing formed by a front side, a rear side, and a casing, wherein the casing extends between the front side and the rear side along a longitudinal direction; an electrical unit provided in the housing, wherein the electrical unit includes one or more contact points for connecting wiring, and wherein the casing and / or rear side comprises one or more openings providing access to the one or more contact points for said wiring; wherein the method comprises at least the steps of: creating a surface opening in the surface; passing wiring through the surface opening from behind the surface; connecting the wiring to the one or more contact points; attaching one or more caps to the housing , preferably before placing the electrical module in the surface opening, the one or more caps comprising a front side and a rear side, wherein said one or more caps form a concave cover portion when attached to the housing, wherein the cover portion encloses the one or more openings, (and preferably extends in the longitudinal direction as an extension of the housing), and wherein the one or more caps form together with the rear side of the housing an internal volume surrounding the one or more openings when connected to the housing, wherein the one or more caps, when connected to the housing have a diameter smaller than the surface opening in a section of the one or more caps extending from the rear side of the one or more caps up to but not including the front side of the one or more caps; placing the electrical module in the surface opening; securing the electrical module in the surface opening.

[0242] In a preferred embodiment, said internal volume extends in the longitudinal direction beyond the rear side when the one or more caps are connected to the housing (2).

[0243] As mentioned, the electrical module is designed for installation into a surface, such as a wall or a piece of furniture. This electrical module comprises a housing and anelectrical unit, such as a power outlet, which is uniquely configured to enhance both functionality and ease of installation. The housing features a front side, rear side, and a casing, where the front side is specifically designed to accommodate an electrical connector plug, while the rear side includes contact points for electrical wiring. A pivotal feature of this invention is the cap, which is detachably connected or connectable to the housing and forms a concave shape that fully encloses the contact points and wiring openings, extending longitudinally as an integral component of the housing. The concave design of the cap is instrumental in simplifying the installation process by creating a seamless enclosure that integrates fully with the housing. This ensures the electrical module remains compact, as the maximum cross-section of the electrical module is confined within the dimensions of the front side, thereby making it not only efficient but also aesthetically pleasing. The cap is secured to the housing using longitudinally extending arms, which engage with slots in the housing through a snap-fit connection. This innovative feature eliminates the need for screws, thereby reducing the complexity of assembly and enhancing the overall structural integrity of the electrical module.

[0244] In a further or alternative embodiment, after the step of attaching one or more caps to the housing, at least 50 %, and preferably at least 75 % of the internal volume is encompassed by the cover portion.

[0245] In a further or alternative embodiment, after the step attaching the one or more caps to the housing, the internal volume extends at least 5 mm, and preferably at least 7 mm, and more preferably at least 10 mm in the longitudinal direction measured from the rear side of the housing.

[0246] In an embodiment, the method comprises a step of attaching a single cap to the housing, forming the concave shape.

[0247] The cap comprises a wiring opening, and the method further includes the step of passing wiring through this opening before connecting the wiring to the one or more contact points. This configuration ensures compactness of the electrical module, enhances safety by preventing unintended cable disconnections, and provides an organized, enclosed connection area to reduce exposure to dust and damage.

[0248] In an further embodiment the invention relates to a method wherein attaching the cap to the housing is accomplished using a snap-fit connection.

[0249] This technique provides the technical effect of simplifying the installation process by eliminating the need for additional fastening components, such as screws, thus reducing assembly time and potential points of failure. The snap-fit connection alsoensures a secure and reliable attachment, enhancing the overall durability and robustness of the electrical module, wherein attaching the cap to the housing is performed via the use of a snap-fit connection.

[0250] Overall, the preferred embodiments of the electrical module described herein are optionally aimed at providing a compact, secure, and aesthetically pleasing solution for integrating electrical units into various surfaces. The design is more preferably focused on enhancing user convenience and installation efficiency, while also ensuring safety and reliability in the connection of electrical components.

[0251] Additionally, this embodiment offers a streamlined, user-friendly solution for installing electrical units, with a focus on safety, efficiency, and ease of use.

[0252] Overall, the use of a snap-fit connection in this preferred embodiment exemplifies the inventive concept of providing a user-friendly, efficient, and reliable solution for installing electrical modules in various surfaces. The ease of assembly combined with the compact design and enhanced safety features make this embodiment particularly advantageous for a wide range of applications.

[0253] In a further or alternative embedment the wiring opening is not in contact with any edge of the concave cover portion. The wiring opening is preferably provided in the back side of the concave cover portion.

[0254] In a further or alternative embodiment the concave cover portion comprises a sidewall that extends in, or along, the same direction as the mantle when the concave cover portion is connected to the housing, preferably for at least 1 cm, and more preferably for at least 1.2 cm, and more preferably for at least 1.4 cm, and preferably for at most 5 cm, and more preferably for at most 4,5 cm, and more preferably for at most 4 cm.

[0255] In a further or alternative embodiment, a clamping element is configured to cooperate with a pressure plate, thereby distributing an applied force over a larger contact area and improving strain relief while reducing the risk of local damage to the clamping element.

[0256] In a further embodiment, the clamping element comprises a slot provided in a top side, the slot being configured to receive the pressure plate, thereby retaining the pressure plate in a defined position during use.In a further embodiment, the slot is defined by two lateral overhanging edges, each forming a guiding groove for guiding the pressure plate, thereby limiting tilting and lateral displacement of the pressure plate and promoting uniform pressure application.

[0257] In a further embodiment, the top side comprises an elongated passage configured to receive a screw for securing the pressure plate and applying pressure thereto, thereby permitting relative movement between the clamping element and the screw. The clamping element is configured to move along a sloping surface of a backside of a cap and is consequently oriented at an angle relative to the screw, such that the screw is displaceable within the elongated passage during movement of the clamping element. The position of the screw within the elongated passage defines a range of movement of the clamping element and can therefore be adjusted to tighten a wire or cable within a wire passage.

[0258] In a further or alternative embodiment, the clamping element comprises a body extending at an angle relative to a top side toward a bottom side.

[0259] In a further embodiment, the bottom side comprises two parallel clamping edges, thereby providing stable engagement with a wire and improving resistance to pullout forces.

[0260] In a further embodiment, a first clamping edge is formed at an end portion of a backside of the body and a second clamping edge is formed at an end portion of a front side of the body, thereby defining a controlled clamping geometry that enhances repeatability of the clamping function.

[0261] In a further embodiment, the second clamping edge protrudes further from the body than the first clamping edge, thereby resulting in an equal pressure distribution onto the wire or cable at a slanted orientation.

[0262] In a further or alternative embodiment, the clamping element comprises two lateral edges configured to slide within grooves provided on a backside of a cap, thereby guiding movement of the clamping element and reducing the risk of misalignment during actuation.

[0263] In a further or alternative embodiment, a cap comprises a screw hole configured to receive a screw, wherein screwing the screw into or out of the screw hole adjuststhe range of movement of the clamping element, as guided by the grooves. Furthermore, tightening the screw into the screw hole causes the clamping element to move so as to tighten a wire or cable within the wire passage.

[0264] In a further or alternative embodiment, a cap comprises two drainage openings configured to prevent water from accumulating within the cap.

[0265] In a further embodiment, the drainage openings are positioned in an outer edge of a wiring passage surface, thereby promoting discharge of water away from a wiring opening.

[0266] In a further embodiment, the drainage openings are positioned near a most longitudinally extended part of the cap, thereby improving passive drainage at a location where water is likely to collect.

[0267] In a further or alternative embodiment, the bottom side comprises a single clamping edge having a slanting orientation configured to clamp a metallic cable, thereby improving retention of metallic cables.

[0268] In a further embodiment, the clamping edge has an asymmetrical curvature profile, wherein the curvature extends over a greater circumferential length on one lateral side than on the opposite lateral side, thereby improving retention of metallic cables.

[0269] In a further or alternative embodiment, a wiring opening is defined by a gap between adjoining edges of a housing and a cap, thereby enabling formation of the wiring opening during assembly without additional components.

[0270] In a further or alternative embodiment, a U-shaped clamping element is positioned adjacent to and surrounding the wiring opening, thereby providing clamping around the wiring opening and improving strain relief.

[0271] In a further embodiment, arms of the U-shaped clamping element are concavely shaped and internally configured to slide over two sections of the housing protruding from a rear side, thereby guiding movement of the clamping element and enabling controlled narrowing or enlarging of a passage to the wiring opening.In a further embodiment, movement of the clamping element is actuated by means of two screws extending through the arms of the clamping element into the sections, thereby enabling a stable adjustment of the clamping element.

[0272] In a further or alternative embodiment, the clamping element is removable to simplify connection of a wire by improving accessibility.

[0273] The invention is further described by the following non-limiting examples which further illustrate the invention, and are not intended to, nor should they be interpreted to, limit the scope of the invention.EXAMPLES AND / OR DESCRIPTION OF FIGURES

[0274] FIG. 1 shows a perspective front view of the electrical module for installation in a surface according to an embodiment of the present invention.

[0275] The electrical module for installation in a surface comprises a housing (2) and an electrical unit (10). In this embodiment, the electrical unit (10) is a power outlet of type B according to the IEC 60083:2015 standard. The housing (2) includes a casing (3) with a front side (4), a rear side (6), and a cylindrical side wall (5). The rear side (6) is not visible in FIG. 1 but can be seen in FIG. 4. The electrical unit (10) is positioned within the casing (3) behind the front side (4). The front side (4) comprises openings (14) to the contact points of the power outlet.

[0276] The housing (2) further includes a flange (7) on one side of the front side (4). The flange (7) extends away from the casing (3) and, in this embodiment, lies in the same plane as the front side (4). The housing (2) is equipped with two clamping wings (8) for securing the electrical module for installation in a surface within a wall or furniture. In FIG. 1, only one clamping wing (8) is visible. Each clamping wing (8) is provided with a fixation screw (9). The fixation screws (9) can be tightened through openings in the front side (4). When the fixation screws (9) are tightened, the clamping wing (8) move towards the front side (4), securing the electrical module for installation in a surface in place.

[0277] At the rear side (6), the electrical module for installation in a surface includes contact points (11) for connecting an electrical cable to the electrical unit (10). The contact points (11) are most clearly visible in FIG 4. Each contact point (11) includes a clamp screw (23), which ensures a secure and stable electrical connection by compressing a copper wire within a terminal. This action guarantees consistent conductivity and prevents any movement or detachment of the wire. The clamp screw (23) of this embodiment is hidden by the cap (12) and shows in FIG. 2. A cap (12) is detachably connected to the housing (2) by means of longitudinally extending arms (19). The side wall (5) of the housing (2) comprises slots (20) that accommodate the longitudinally extending arms (19). In FIG. 1, only one longitudinally extending arm (19) is visible, while the slots (20) can be seen in Figures 2 and 4.

[0278] The longitudinally extending arms (19) include recesses (21) that engage with complementary protrusion (22) inside the slots (20), securing the cap (12) to the housing (2) via a snap-fit connection. The longitudinally extending arms (19) and the side wall (5) form a smooth, continuous outer contour of the housing (2). Thecap (12) is cylindrical and fits seamlessly against the housing (2), forming an integrated wiring enclosure around the contact points (11) the clamp screws (23) ensure a reliable conductivity and preventing copper wire movement or disconnection.

[0279] The outer contour of the cap (12), viewed in a direction perpendicular to the front side (4), is positioned at least 3 mm within the outer contour of the flange (7). Additionally, when viewed in the same direction, the cap (12) does not extend beyond the outer contour formed by the side wall (5) of the housing (2).

[0280] FIG. 2 shows a perspective front view of the electrical module for installation in a surface from FIG. 1, with the cap (12) detached from the housing (2).

[0281] In FIG. 2, the rear side (6) and one contact point (11) are barely visible. Clearly visible are the two longitudinally extending arms (19) with the recesses (21) for snapping over the complementary protrusion (22) in the slots (20). One slot (20) is also visible in FIG. 2. FIG. 2 further illustrates how the cap (12), once attached to the housing (2), forms an integrated wiring enclosure.

[0282] FIG. 3 shows a perspective rear view of the electrical module for installation in a surface from FIG. 1.

[0283] FIG. 3 illustrates that the cap (12) includes a single wiring opening (13). The wiring opening (13) is located in a wiring passage surface (18) of the cap (12), which forms a 45° angle relative to a perpendicular line on the rear side (6) of the housing (2). The cap (12) also features a strain relief mechanism near the wiring opening (13). The strain relief includes a slidable clamping element (15), which has a first side, a second side, and a pressure side. The first side of the slidable clamping element (15) is slidably positioned against an inclined surface of the cap (12), which slopes towards the wiring opening (13). The second side of the slidable clamping element (15) is parallel to the front side (4). The pressure side of the slidable clamping element (15) is directed towards the wiring opening (13). The strain relief further includes a metal pressure plate (16) and a screw (17). The pressure plate (16) is positioned against the second side of the sliding clamping element (15). By tightening the screw (17), the pressure plate (16) moves towards the front side (4), pressing against the sliding clamping element (15), which moves along the inclined surface towards the wiring opening (13). This secures an electrical cable in the wiring opening (13) and seals the integrated wiring enclosure.FIG. 4 shows a perspective rear view of the electrical module for installation in a surface from FIG. 1, with the cap (12) detached from the housing (2).

[0284] In FIG. 4, the rear side (6) and the contact points (11) are clearly visible and one clamp screw (23). The fixation screws (9) are already partially tightened, causing the clamping wings (8) to expand. Both clamping wings (8) are now visible.

[0285] The present invention will now be further exemplified with reference to the following examples. The present invention is in no way limited to the given examples or to the embodiments presented in the figures.

[0286] Example 1 illustrates a particular embodiment of the present invention, crafted to accommodate lateral wiring. In many instances, the wiring situated within a wall encounters significant challenges when it comes to bending, primarily due to the constrained space available. This constraint is frequently intensified by the existence of a stiff wire housing, which restricts flexible movement. Consequently, the wires are unable to flex or bend as needed, resulting in installation difficulties and potential connectivity issues. In many cases, when installation occurs on the back or side wall, these walls are not typically designed to accommodate wires, necessitating that the wires approach from the side. The invention addresses these challenges by providing a more adaptable and space-efficient solution, ensuring that the wiring can be installed with greater ease and reliability. FIG 5a and fig 5b shows a particular embodiment of this invention.

[0287] Fig 5a shows an embodiment of the housing (2) including a casing (3) with a front side (4) and a rear side (6) This particular embodiment, both the housing (2) and cap (12) have a rounded rectangular shape with smooth curved side wall (5). FIG.

[0288] 5a illustrates the rear side (6). The front side (4) is not visible in FIG. 5a and 5b. The electrical unit (10) is positioned within the casing (3) behind the front side (4). In FIG. 5a the rear of the electrical unit (10) is shown including the rear surface of the flange (7). The housing (2) includes two clamping wings (8), adjustable between expanded and retracted positions, allowing secure fixation within the wall or furniture while simplifying installation. With both clamping wings (8) in the retracted position, the wings can be brought to expanded position by turning the fixation screws (9) clockwise. Only one clamping wing (8) is visible. When the fixation screws (9) are tightened, the clamping wing (8) move towards the front side (4), securing the electrical module for installation in a surface in place. The flange (7) extends away from the casing (3) and, in this embodiment, lies in the same plane as the front side (4). Three contact points (11) for connecting an electrical cable to the electrical unit(10) are shown on the right side of the rear side (6). The contact points (11) are designed to accommodate the electrical installation wires laterally, with the wires entering from the left in this embodiment. For all three clamp screws (23) the external threading is shown. The clamp screw's (23) external thread engages with the threaded section of the housing (2), ensuring the copper wire is securely fastened. For enhanced safety, the cap (12) conceals the clamp screw (23) following installation, minimizing the risk of the copper wire becoming detached from the electrical setup.

[0289] The cap (12) which is shown in FIG. 5b is detached from the housing (2). The side wall (5) of the housing (2) comprises slots (20) that accommodate the closing mechanism of the cap (19), not shown. The complementary protrusion (22) inside the slots (20), securing the cap (12) to the housing (2). The side wall of the cap (12) and the side wall (5) form a smooth, continuous outer contour of the housing (2). The second side of the slidable clamping element (15) is parallel to the front side (4), is however covered in this embodiment by a cover. The pressure side of the slidable clamping element (15) is directed towards the wiring opening (13). The strain relief further includes a metal pressure plate (16) and a screw (17). In this embodiment only two screws (17) are shown the pressure plate (16), not shown, is positioned against the second side of the sliding clamping element (15). By tightening the screw (17), the pressure plate (16) moves towards the front side (4), pressing against the sliding clamping element (15), which moves along the inclined surface towards the wiring opening (13). This secures an electrical cable in the wiring opening (13) and seals the integrated wiring enclosure. The design is tailored to accommodate the wire entering from the side.

[0290] FIGS. 6-16 show various other views of the apparatus, in amongst others a version with two separate sockets next to each other. The principles are however the same in terms of connection, advantages and implementation.

[0291] FIG. 17 illustrates a front view of the mounting plate, which comprises a radially extending section (26). This section is specifically designed to be covered with wall finishing material, ensuring a seamless integration with the surrounding surface once installed. Positioned centrally within the mounting plate is the passage (27), which is configured to receive the electrical module. The passage defines a mounting opening (36), configured for receiving the electrical module (1) within the passage (27). Interruptions (28) are present in the external thread (31) of the passage. These interruptions result in recessed strip of outer surface of the passage. Theseinterruptions facilitate the adhesion of wall finishing material such as plaster, which can seep into the mounting mantle (30) to provide additional fixation and stability of the passage within the mounting mantle after installation. This prevents unwanted movement of the passage. Mounting holes (29) are distributed across the mounting plate to enable secure attachment to the installation surface such as a wall structure, wall or piece of furniture. Inside the passage, internal ridges (34) encircle its circumference. These ridges are strategically placed to form an anchoring edge, ensuring that the flange of the electrical module, once inserted, remains firmly secured behind these ridges.

[0292] FIG. 18 provides a side view of the mounting plate, offering a clearer view of the external thread (31) on the passage. The external thread (31) is provided along the entire length of the passage. This design feature allows the rear side of the passage (35) to be traversed through the mounting mantle (30), enabling precise positioning either forward, extending outward from the front side (33) of the mounting plate, or backward, retracting towards the rear side (32). This functionality grants the installer the flexibility to adjust the depth of the module according to the thickness of the installation surface. This further allows the passage to be separable from the rest of the mounting plate. FIG. 3 illustrates a side view of the mounting plate in a configuration where the passage is extended outward from the front side (33). Additionally, the side view reveals that the interruptions (28) in the external thread extend along approximately half the length of the passage. The mounting mantle (30) features an internal thread that complements the external thread (31) of the passage. The mounting mantle itself has a width approximately one-third of the total passage length, a proportion that ensures sufficient rigidity while maintaining maneuverability during the installation process.

[0293] FIG. 20 presents a front perspective of the mounting plate after the electrical module has been inserted into the mounting opening. The flange (7) of the electrical module is securely positioned behind the internal ridges (34) of the passage, preventing any undesired movement after installation. The passage is dimensioned with an inner diameter that closely corresponds to that of the electrical module, ensuring a snug fit that minimizes potential misalignment. Furthermore, the front side (33) of the passage is contoured to align with the front side of the housing (4), creating a flush and aesthetically cohesive appearance once the module is fully installed.

[0294] FIG. 21 provides a side view of the mounting plate with the electrical module inserted. In this embodiment only the arms (19) of the cap (12) reside within thevolume defined by the passage (27), while the remainder of the cap extends behind the rear side (32) of the mounting plate. The fixation screws (9) play a crucial role in the securement of the electrical module in the mounting plate. When these screws are rotated, the clamping wings (8) rotate axially outward from their resting position within the second lateral recess (24). As the screws are further advanced, the clamping wings move longitudinally along the fixation screw, progressing forward until they firmly engage behind the edge of the rear side of the passage (35). This mechanism ensures that the electrical module is securely anchored within the passage, preventing unintentional dislodgment or loosening over time. The final secured position of the electrical module within the mounting plate is further detailed in FIG. 22, which illustrates the full engagement of the clamping wings behind rear side edge of the passage (35).

[0295] FIG. 22-26 illustrate a mounting plate configured to be installed from the back of the surface.

[0296] FIG. 22 illustrates a front view of a mounting plate. The radially extending section (26) includes mounting holes (29) that enable secure attachment of the plate to a supporting structure. The passage (26) comprises detachable segments (37) configured for extending the length of the passage, as is more clearly shown in FIG.

[0297] 23.

[0298] FIG. 23 presents an exploded view of the mounting plate, showing the passage segments (37) that are detachably connected to the passage (27). These segments allow for an adjustable length of the passage, accommodating different depths of the electrical module depending on the thickness of the wall finishing material surrounding the surface opening. The passage (27) defines a mounting opening (36), through which the electrical module can be inserted and secured.

[0299] FIG. 24 provides a front view of the mounting plate with the electrical module secured in the mounting opening (36). The front side (33) is configured to be positioned against the back side of the installation surface, whereby the passage (27) is configured to extend through the surface opening, allowing the electrical module to be installed from the front side (33). The flange (7) of the electrical module is positioned against the front side edge of the passage, enabling the electrical module (8) to anchor itself behind the front side edge of the passage to allow the clamping wings (8) to secure the electrical module inside the mounting opening (36).FIG. 25 illustrates the rearview of the mounting plate with the electrical module (1) secured in the mounting opening (36). The clamping wings (8) extend outward from the rear side (32) of the mounting plate, anchoring the module in place. The cap (12) is also shown extending beyond the back side of the mounting plate, providing structural reinforcement. The back side (32) of the mounting plate is substantially flat, with no section of the passage (27) extending from the back side (32).

[0300] FIG. 26 provides a rear view of the mounting plate with the electrical module without cap secured in the mounting opening (36). The fixation screws (9) are shown in their engaged position, driving the clamping wings (8) outward to firmly lock the module in place. This mechanism ensures that the electrical module remains anchored within the passage (27), preventing unwanted movement or dislodgment over time.

[0301] Figure 27 illustrates an embodiment of the clamping element (15). The clamping element (15) comprises a slot (152) provided in a top side (151), the slot being configured to receive the pressure plate (16). The slot (152) is defined by two lateral overhanging edges, each forming a guiding groove for guiding the pressure plate (16). The top side (151) further comprises an elongated passage (157) configured to receive a screw (17) for securing the pressure plate (16) and applying pressure thereto. The body of the clamping element (15) extends at an angle relative to the top side (151) toward a bottom side (153). The bottom side (153) comprises two parallel clamping edges (154, 155), wherein a first clamping edge (154) is formed at an end portion of a backside of the body, and a second clamping edge (155) is formed at an end portion of a front side of the body. The second clamping edge (155) protrudes further from the body than the first clamping edge (154). The clamping element (15) further comprises two lateral edges (156) configured to slide within corresponding grooves provided on a backside of the cover portion.

[0302] Figure 28 shows a bottom view of the clamping element shown in figure 27.

[0303] Figure 29 illustrates an alternative embodiment of the clamping element, wherein the bottom side comprises a single clamping edge (154) having a slanting orientation configured to clamp a metallic cable, as is more clearly visible in the bottom view shown in figure 30. In addition to the slanting orientation, the clamping edge (154) has an asymmetrical curvature profile, wherein the curvature extends over a greater circumferential length on one lateral side than on the opposite lateral side.Figures 31 and 32 show, respectively, a perspective view and a front view of the backside of the cap (12) attached to the module and with the clamping element (15) inserted. In Figure 31, the clamping element (15) is the embodiment illustrated in Figures 17 and 18. In Figure 32, the clamping element (15) is the embodiment illustrated in Figure 29 and 30. Figure 33 shows the cap (12) without the clamping element (15), thereby more clearly illustrating the grooves (181) configured to guide the lateral edges (156) as the screw (18) is screwed into or out of the screw hole (183) of the cap (12). This screw (17) is clearly visible in the longitudinal crosssection shown in figure 34. These embodiments further illustrate the presence of two drainage openings (182) configured to prevent water from accumulating within the cap (12). These drainage openings (182) are positioned in the outer edge of the wiring passage surface (18), near the most longitudinally extended part of the cap (12), as is also visible in the rear view of the cap (12) shown in figure 35.

[0304] Figure 36 shows a further embodiment of the electrical device comprising two receptacles. In this embodiment, the wiring opening (13) is defined by a gap (121) between adjoining edges of the housing (2) and the cap (12). A U-shaped clamping element (15) is positioned adjacent to and surrounding the wiring opening (13). The arms (158) of the U-shaped clamping element (15) are concavely shaped and are internally configured to slide over two sections (159) of the housing (2) protruding from the rear side (6). This arrangement enables the clamping element (15) to move toward and away from the rear side (6), thereby narrowing or enlarging the passage to the wiring opening (13). The movement of the clamping element (15) is controlled by two screws (17) extending through the arms (158) of the clamping element (15) into the screw holes (183) of the respective protruding sections (159). The protruding sections (159) and the screw holes (183) are more clearly visible in figure 37, showing the rear side (6) of the electrical device of figure 36.

[0305] The cap (12) and the clamping element (15) are removable to facilitate connection of a wire (26), as illustrated in figures 38 and 39. The adjustability of the clamping element (15) permits accommodation of wires (26) of different diameters and materials, as further illustrated in figures 40 and 41.

Claims

CLAIMS1. A kit for installation of an electrical unit in a surface, such as a wall or piece of furniture, said kit comprising:• an electrical module comprising a housing, wherein said housing is formed by a front side, a rear side, and a casing, wherein the casing extends between the front side and the rear side along a longitudinal direction, and wherein the front side is configured to receive an electrical connector plug, and wherein the electric module comprises an electrical unit comprised in the housing, and wherein the electrical unit comprises contacts for connecting wiring, and wherein the housing comprises one or more openings providing access to said contacts for the wiring;• a mounting plate comprising a mounting opening configured to receive the electrical module, wherein the mounting plate comprises a portion extending radially around the mounting opening, the portion being configured to be covered with a wall finishing material;wherein the electrical module further comprises one or more caps, wherein the one or more caps are detachably connectable to the housing and form a cover portion when connected to the housing, said cover portion configured to enclose the one or more openings, and wherein the cover portion is configured to pass into or through the mounting opening when connected to the housing,wherein the mounting opening comprises a passage extending in the direction perpendicular to the mounting plate, and wherein the passage is adjustably movable with respect to the mounting plate along in the direction perpendicular to the mounting plate.

2. The kit according to claim 1, wherein the mounting opening comprises a mounting mantle extending rearwardly from the mounting plate, said mounting mantle being configured to be inserted into an opening in a surface with a close fit between the mounting mantle and an edge of the opening, and with a rear side of the radially extending portion abutting the surface.

3. The kit according to claim 2, whereby the passage comprises, at one end, one or more recessed sections of the outer surface that are set back relative to the remaining outer surface.

4. The kit according to claim 3, wherein the sections are strip-shaped and extend from one end of the passage toward the other end, wherein said sections preferably have a length of at least 1 cm and a width of at least 4 mm.

5. The kit according to any one of claims 1-4, wherein the passage and the mounting opening are configured to define a gap between an outer surface of the passage and an inner surface of the mounting opening, the gap being configured to permit ingress of wall finishing material, preferably plaster, into the gap.

6. The kit according to any of the claims 1-5, wherein the electrical module comprises a frontal side in the direction faced by the front side of the housing, wherein said frontal side of the electrical module is formed by the housing and / or by the one or more caps when connected to the housing, and wherein a section of the electrical module extending from a rear side of the one or more connected caps up to but not including the frontal side is configured to pass into or through the mounting opening.

7. The kit according to any of the preceding claims 1-6, wherein the electrical module comprises at least one clamping wing, wherein the clamping wing and the mounting plate are configured to cooperate to secure the electrical module within the mounting plate.

8. The kit according to claim 7, wherein the clamping wing is adjustable axially and / or longitudinally by means of a rotatable axis-like component, wherein said axis-like component extends longitudinally and is positioned within maximum dimensions of the casing of the electrical module, measured perpendicular to the longitudinal direction.

9. The kit according to claim 7 or 8, wherein the clamping wing is adjustably movable between a first position, wherein the clamping wing at least partly extends outside of a maximal cross-section of the section of the electrical module, and a second position, wherein the clamping wing is fully positioned within said maximal cross-section, wherein said maximal cross-section is measured perpendicular to the longitudinal direction.

10. The kit according to any of the claims 1-9, wherein said passage is cylindrical and positioned within a mounting mantle in the mounting plate, said mounting mantle comprising an internal thread, and wherein said passage comprises anexternal thread configured to cooperate with said internal thread to move the passage along the direction perpendicular to the mounting plate, and wherein said mounting mantle is provided in and / or extending from the mounting opening.

11. A method for installing an electrical module in a surface, such as a wall or piece of furniture; wherein said electrical module comprises an electrical unit comprised in a housing, and one or more caps, said caps detachably connectable to the housing; wherein the method comprises the steps of:• aligning a mounting plate and a surface opening, wherein the mounting place comprises a mounting opening, wherein the mounting plate comprises a portion extending radially around the mounting opening, whereby the mounting opening and the surface opening align, and whereby said portion extending radially overlaps with surface surrounding the surface opening; • passing wiring through the mounting opening from a back side of the mounting opening;• connecting contacts of the electrical unit to the wiring to form an electrical connection between the electrical unit and an external power source connected to the wiring, said connection passing one or more openings in the housing, said openings preferably being provided at a rear side of the housing;• connecting one or more caps to the housing, whereby said one or more caps form a cover portion when connected to the housing, and whereby said cover portion encloses the one or more openings in the housing;• passing the cover portion into or through the mounting opening;• passing the housing into or through the mounting opening;• securing the electrical module within the mounting plate,• wherein the mounting opening is a passage extending in the direction perpendicular to the mounting plate, and wherein the method further comprises the step of adjusting an extension of the passage relative to the mounting plate along the direction perpendicular to the mounting plate, covering the radially extending portion of the mounting plate with wall finishing material after the extension of the passage is adjusted.

12. The method according to claim 11 , wherein the cover portion comprises a back side and a front side, wherein the front side is detachably connectable to the housing, and wherein the back side of the covering portion comprises a wiringopening, and wherein the method further comprises the step of providing the wiring through the wiring opening before connecting the wiring to the contacts.

13. The method according to claim 11 or 12, wherein the step of securing the electrical module within the mounting plate comprises adjusting the configuration of a clamping wing to anchor said clamping wing to the mounting plate, wherein said adjusting comprises rotating an axis-like component extending between a front side of the housing and the clamping wing.

14. The method according to any of the claims 11-13, wherein said adjusting comprises the step of rotating the passage relative to the mounting plate.

15. The method according to any of the claims 11-14, wherein the steps of passing the cover portion into or through the mounting opening and of passing the housing into or through the mounting opening, are preceded by a step of connecting the one or more caps onto the housing.

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