EP2637486B1 - Electrical device with a casing for an electrical device with a holding and clamping device - Google Patents

Description

The present invention relates to an electrical housing, which offers as part of a recessed luminaire an advantageous fastening technique, so that one hand by low rotational movement, a setting of the electrical housing, in particular as a flush-mounted housing, can be brought.

State of the art

Components that have a part of this side of a wall, a panel or a sheet-like device and another part behind the wall, so beyond the panel or the sheet-like device, often fall back on the principle of extendable projection frame or projection brackets to fall out or Slipping out of the device from its opening by the setting by means of the projection arms to prevent.

The US 5,401,132 A. (Owner: Emhart Inc., Priority Date: 04.09.1992) describes graphically very catchy in Figure 10, and in Figures 15a, 15b and 15c, the principle of bulging projection arms for locking the portion of an advantage and rear panel to be placed behind a panel forming component. Such a principle works with the deformability of the projection arms. If plastically deformable materials are chosen, the deformation can usually only be repeated a few times. A multiple installation and removal is therefore not recommended.

This principle of extendable brackets or retractable projection arms is also commonly applied to housings and cans of electrical equipment. For example, the beats GB 903 723 A (Owner: Chamberlain & Hookham Limited, priority date: 26.09.1958) to attach to each screw a clamp-like arm, which can hold a display disc by a positive locking by rotating the respective screw. Other examples of attachment of electrical appliances by means of projection arms are in the documents US 5 609 414 A (Inventor: Guiseppe Caluori, filing date: 24.11.1995) and EP 0 870 982 A2 (Applicant: ERCO Leuchten GmbH, priority date: 11.04.1997).

Other types and methods of attachment can also be found in the intellectual property literature.

The DE 821 811 B (Applicant: Robert Berker, date of publication: 11.10.1951) describes a mounting option of electrical installation equipment on a supporting surface, the attachment by a arranged in the center of the device, with the existing device housing from the interior of the same to be operated and a bore of the housing bottom with its shaft by cross Screw done. The DE 821 811 B however, does not provide any indications as to how an advantageous condition of a housing, a box or an installation frame could look, in particular the fixing variants seem to be usable only for surface-mounted arrangements.

The DE 1 171 044 A (Applicant: Gebrüder Merten, filing date: 18.05.1960) describes a fixing of electrical switches or plugs in a box. The can is used according to the DE 1 171 044 A the inclusion of an insert body, which is fixable by means of more than two Spreizklemmen in housing walls. The expansion clamps should cooperate in a known manner with the inner walls of commercial cans. Also the DE 1 171 044 A does not teach installing a can in a wall or ceiling. In addition, the focus of this description is on the attachment of such small insert body as switches or plugs.

In order to hide as possible a housing for the viewer of electrical devices such as recessed lighting, the electrical housing of recessed lights are happy in a wall or in a ceiling, that is, so "under plaster" introduced.

Various documents in the intellectual property literature suggest mounting options for such "under plaster" to be attached, electrical equipment or electrical housing.

The EP 1 936 257 A1 (Applicant: Bega Gantenbrink-Leuchten KG, priority date: 20.12.2006) shows a mounting option for a recessed ground luminaire. A clamping block is to be guided over a slide on a lamp housing and be frictionally connected in a mounted position with a wall of a undercut-free cavity. An Indian EP 1 936 257 A1 described construction is likely to be unsuitable for installation in a ceiling due to the weight of the lamp, which is likely to exceed the frictional force of the clamping block.

The DE 20 2010 008 567 U1 (Applicant: Zumtobel Lighting GmbH, filing date: 17.09.2010) describes a mounting device for a spotlight, which is intended for installation in the mounting opening of a ceiling or wall. A mounting frame, the means for pivoting Holder of a radiating head, can be anchored via at least one locking element in a mounting hole. The spotlight is pre-mounted on the swivel mount before anchoring the mounting frame. The locking element is a flexible spring element and is laterally deformed radially by an adjustment of an actuating means, an adjusting screw, and thus transferred from an assembly position into a detent position. However, this actuating means or this screw is only accessible by pivoting the already pre-assembled radiating head. This means that only swiveling spotlights can be mounted by means of this mounting device. In addition, the assembly, especially with small spotlights, some skill because only partially obstructed by the radiator opening for access to the actuator remains. Furthermore, the spring element is attached directly to the mounting frame. Thus, no flexibility in the orientation of the spring element in the mounting opening is possible with a given orientation of the radiator mounted on the mounting frame. The mounting device of DE 20 2010 008 567 U1 is finally a tube open in different directions, which is why this mounting device does not provide protection of sensitive light parts such as cable connections. In the sense of the protection classes for electrical appliances, such switched electrical appliance should be sorted only in the lowest dust and spray water category.

The DE 10 2009 016 778 A1 (Applicant: ABB AG, filing date: 07.04.2009) describes a flush-mounted LED light and requires a commercially available flush-mounted box. In paragraph [0029] of DE 10 2009 016 778 A1 the installation of a device base in an installation frame is described by means of spreading claws. It also describes a light cover, which, as in FIG. 5 of the DE 10 2009 016 778 A1 clarified, the installation frame can be pressed and locked. The DE 10 2009 016 778 A1 teaches the easier installation of a recessed light, but there are no clues about the operation or the interaction of the installation frame and the spreading claws. In addition, the describes DE 10 2009 016 778 A1 neither does the nature of the flush-mounted box, nor does it give any clues as to how a flush-mounted box should be, so that it itself can be easily installed in a wall or ceiling. A similar structure in comparison with the DE 10 2009 016 778 A1 also shows the EP 2 315 327 A2 (Applicant: ABB AG, priority date: 23.10.2009). The spreading claws, which are designed to be electrically insulating, should be actuated by tightening a set screw.

The DE 197 55 996 A1 (Applicant: Edwin Weindl, filing date: 17.12.1997) describes a mounting device for a ceiling light in a false ceiling. It is described as a mounting device, a downwardly open housing, which at least two themselves Having opposite support arms. The resilient support arms are pressed during installation in the direction against the side walls of the housing and are spread after insertion of the housing in the mounting opening to the outside. The spread support arms hold the luminaire during installation on the false ceiling. To fix the lamp is a through the housing, vertically leading into the false ceiling clamping screw. When tightening this screw forces are developed perpendicular to the false ceiling, through which the spread support arms are pressed down on the false ceiling. There are no vertical forces from the support arms, which is why the mounting device, as a kind of holding device, is applicable only for the attachment of a lamp in a suspended ceiling, but not, as a kind of clamping or clamping device for mounting a lamp in a non-suspended Ceiling or wall is suitable.

The DE 20 2008 008 977 U1 (Owner: Roland Pasedag, filing date: 04.07.2008) shows a visually appealing lamp, which can be installed as a recessed light. For fixing many mechanics have developed different working techniques.

The previously discussed descriptions apply with their referencing as fully incorporated for the following description of the invention, so as not to once again have to introduce the most varied forms of clamping brackets, central screws and rotating fasteners in the sense of the following description of the invention. The clamping brackets, central screws, rotating fastening means and clamping elements disclosed in the publications mentioned above are also named and described with the terms of the publications for the present invention description as well.

task

When assembling electrical appliances, there is always the desire to be able to complete the installation of the electrical housing, for example a recessed luminaire, as quickly, reliably and without errors, preferably by a single fitter. Ideally, the assembly technology can also be transferred to existing series of luminaires that work with flush-mounted housings by replacing only a few components of a building set.

invention description

The object of the invention is achieved by an electrical housing according to claim 1, a built-in with a corresponding electrical housing recessed luminaire claim 9 can be seen, a suitable mounting method can claim 11 refer. Advantageous developments can be found in the dependent claims.

Electrical enclosures, which are also referred to in the linguistic world by electricians as cans, appliance boxes, appliance junction boxes, dual appliance junction boxes, electronic boxes or junction boxes, that can be referred to as box-like or tub-like electrical enclosures due to their shape, provide for the faster Mounting advantageously a connected to the can or the box or the tub holding and clamping device. The holding and clamping device is advantageously arranged so that the actual device hidden for the eye of the beholder behind the female body or in this use can ensure a tightening of the housing. An assembly in which at least a part of the housing disappears in the body or behind the body, is referred to as flush mounting, which also in not plastered walls, z. B. in planked or covered with panels walls, so-called drywall, used cans are called cans in Unterputzeinbauvariante. In some embodiments, the entire can is buried in the wall, in the body, or behind the panel; In other embodiments, a substantial portion of the housing is hidden behind a visible edge or surface and projects into the wall, body or behind the panels. The part to be sunk can have a trough-like shape. In the tub more electrical and electronic components can be arranged. The tub has a bottom, so a tub bottom, of which a substantial area is a bottom plate.

The housing can be designed in a wide variety of geometric shapes and thereby have a round, elliptical, square or even rectangular cross-section or even combinations thereof in plan view. The housing, viewed three-dimensionally, may be formed in depth less deeply or even deeper than the cross-section, i. H. Seen three-dimensionally be designed as a tub-like housing or tub-like box or as a hollow cylinder. The housing can be tapering in depth as tapered, so that viewed from above cross-section, so viewed from one side cross-section, is greater than the viewed from below cross section of the housing, so viewed from the other side cross-section.

Part of the rear section of the box is a tensioning element. The clamping element projects out of a surface of the electrical housing at least in regions, in order to be able to produce a non-positive or a form-locking connection or attachment to the wall, the body or the panel. The clamping element comprises some components. A component of the tensioning element may be a tensioning clamp. Advantageously, a plurality of clamping clips are present, which all together form the clamping element. The clamp is guided by a drive plate.

Adjustment of the drive plate can be done by means of a central screw. The central screw stores or passes through the housing, in particular in the trough-like, rear area, ie on the rear wall of the housing. As a screw, the central screw offers a rotational movement. The central screw is rotatable. By a rotational movement, the drive plate can rotate at least a few degrees. The rotation is parallel to the wall or the rear, trough-like area feasible. The drive plate rotatably supports the screw. Upon completion of the first rotation, continued rotation of the drive plate is prevented. The drive plate is after covering a first Drehweges fixed. Subsequently, a height adjustment, ie, a parallel offset of the drive plate in the direction of or in the direction of the wall, more precisely the rear wall or the trough-like region, carried out by means of the central screw. The drive plate is stored using the central screw so that the drive disc offers two degrees of freedom of movement, but which can preferably be taken successively. The drive plate supports parallel to the rear wall of the electrical housing in a height-adjustable manner. The drive plate can be guided through a central screw.

The central screw includes a screw head. The head of the screw can be touched or attacked from the inside of the electrical housing. The screw head protrudes into the interior of the housing. The central screw can be turned with a screwdriver, such as a screwdriver or hexagon wrench, which has been adjusted to the head of the screw. The rotations of the central screw are transferred to the drive plate. The central screw superimposed in one area, so in some areas, in the rear wall of the electrical housing and with another area in the drive plate. The drive plate has a thread. By means of the thread, the drive plate can be arranged closer or further to the rear wall of the housing. The drive plate is rotatable in an angular degree range, which is preferably less than 360 °, even less than 90 °, z. B. only 5 °. In a further embodiment, the way to a

Stop attacks, provided over an angular degree of 120 ° of a rotational movement of the drive plate. The value for the angular degree is influenced by the desire for a short or long free-running path and can be set almost arbitrarily by the position of the stopper on the drive plate in comparison to the position of the clamping clip.

The drive plate as part of the clamping element is a mediating component between the central screw and the clamp. By means of the central screw to be moved from an interior of the electrical housing via a screw head, the driver disk is rotatably movable until the clamping bracket (s) can no longer be carried along. In one end region, the respective clamp is attached via a rotary connection to the drive plate. The rotary connection allows the rotational movement of the central screw to be converted into a clamping movement of the clamping clamp guided radially on a mandrel. The clamping element comprises a mandrel. The mandrel serves to guide the clamp. The clamp follows the specifications given by the slewing ring. Part of the clamping element is at least one stop. The stop prevents further rotation of the drive plate. The rotational, moving movement of the clamp is due to the stop up to a certain point allowed.

The different movement processes in the assembly of a can with a holding and clamping device are provided in the movement degrees of freedom of the individual components of the holding and clamping device. The can can be used almost intuitively correctly. With just one operation, all existing clamps, z. B. two, three, four or five clamps, set, move or spend in their Endlagenposition.

The electrical housing described above may be part of a recessed luminaire. Such a recessed luminaire has a trough-like installation body. Furthermore, a luminaire insert is available. Both parts, trough-like installation body and luminaire insert, can be joined together. For this purpose, the parts provide a sealing connection, whereby the parts belong together. The parts, trough-like installation body and luminaire insert, hold each other. The closure connection can be assembled so that the parts are held; the closure connection is available. The trough-like part, the trough-like mounting body has a clamping element in its rear area. The clamping element can be operated by an actuating screw.

The central screw takes over the function of an actuating screw in one embodiment. The clamping element can be adjusted and adjusted with the aid of the actuating screw. The clamping element is moved by means of the actuating screw. About a threaded fit, the actuating screw engages movably in the drive plate. In one embodiment, at least one tensioning clamp belongs to the tensioning element. The uniform loading of the clamping element can be improved, that at least three clamping brackets are present. The individual clamps can be attached to the drive plate. The clamps can move in a certain amount of freedom or are displaced. The degree of freedom for the clamp (or the clamps) is limited by a stop. In one embodiment, the stopper is formed in two parts. Part of the stop can be found on the clamp. Part of the stop is incorporated in the drive plate. The parts of the stop interlock. In such a case, the parts of the stopper are positively joined together. By a stop, in particular, a rotational movement of the drive plate can be limited to the effect that the respective clamping clip is entrained from a point of rotation. If a stop is present, then the drive plate may be limited in one embodiment in its free-running area by the stop. The drive plate is basically rotatably mounted.

It is advantageous if at least one clamp for their own leadership a hole, such. B. a slot has. In a radial movement of the drive plate, the clamp is to be movable away from the drive plate. Thus, the clamp has an elongated, at least one-sided guide area. Such a guide region can be realized by an interaction of the hole and a guide element. As a guide element, for example, offers a thorn. The mandrel is fixed to a component, eg. B. the rear wall of the electrical housing, settled. As a result, the mandrel may preferably be regarded as a movement-resistant mandrel, at least with respect to the driver disk. The mandrel of the installation body has a sliding surface for displacing the tensioning clamp. The clamping clip can past the mandrel, in particular in the direction of a trough bottom, z. B. in the direction of a bottom plate of the electrical housing, slide. The mandrel is part of the body and is intended for the movement. In addition, the mandrel can serve as a stop when installing the electrical enclosure in a wall and specify the maximum possible installation depth.

With the embodiment variants set out above, a very simple assembly method can be realized in the installation of electrical boxes and electrical housings in the form of flush-mounted installations. The electrical housing may be part of a recessed luminaire, in particular as stated above. The recessed luminaire comprises a luminaire element, an installation body and a clamping element. It is advantageous if with a one-handed rotary motion, the electrical housing, so at least the electrical box can be installed. If the rotational movement is limited in its angular degrees, it may be possible for the installer to avoid grasping around. It is thus advantageous if the rotational movement is less than 180 °, preferably less than 90 °, until the actuating screw has guided the driver disk to abutment against a rotation limitation.

The tensioning element braces the electrical housing with the body enclosing the electrical enclosure, such as a cavity wall. This is preferably done by a pivoting movement of at least one clamping element. The clamping element is brought by the pivoting movement in a holding position. The clamping element is clamped. Subsequently, even more rotational movements are possible. By such, in particular further rotational movements, which can be introduced at a head of the actuating screw, the drive plate is moved toward the electrical housing, more precisely the tub bottom. The clamp can be compared with its clip elements with a frame from a lateral perspective. The clip elements span an intermediate area. The intermediate area is bordered by the clip elements. The intermediate area is reduced when the drive plate is used by means of a central screw. One Part of the clamp elements then moves laterally past the roundish edge of the electrical housing. Clamping elements of the clamping element with the intermediate area spanned between them are retractable. If the electrical housing is in position, the lighting element can be completed. The lighting element can be z. B. by completing that a cover to the mounting element, to the luminaire rear housing, in particular to form an electrical connection, manually attachable. In one embodiment, the electrical housing offers rotary or snap projections, which laterally engage in the cover with the aim of holding the lid. Preferably, the head of the actuating screw is arranged on the lamp element facing side of the mounting body. The operating as an actuating screw central screw extends through a hole of the mounting body. It is followed by a thread. The thread sits on the other side of the body, so beyond the hole. On the other side, ie on the other side, to the mounting body, a clamping element is arranged. The central screw engages in an embodiment in the thread so that by entrainment of the thread from a rotatable position into a stop position, a tightening of the clamping elements can be performed.

It can also be said that a plurality of clamping brackets pointing in different directions are each fastened to a driver disk in a rotatable manner at one end region. The attachment between the drive plate and the respective end region of the clamping clip via a selective locking connection. The drive plate is height adjustable. The height adjustment is carried out while maintaining the horizontal position of the drive plate. The clamps are also mandrel guided. The clamps have a passage opening which is longer than the respective mandrel, thus can also be referred to as a slot. A not intended for clamping half of the clamping brackets during the height adjustment of the drive plate preserves a substantially parallel orientation to the flat extent of the drive plate.

In the following, advantageous embodiments and developments are set forth, which in themselves, both individually and in combination, can also disclose inventive aspects.

At least one clamping clip should be guided vertically adjustable on the mandrel to ensure the most compact possible implementation of the leadership of the clamp. The exact position of the clamping bracket with respect to the mandrel is determined by a depth of engagement of the central cover. The central screw influences the position of the clamp. Central screw control can be implemented in a variety of ways. In one embodiment, the central screw is guided so that the screw shaft from the inside to the outside of the electrical enclosure is rotated beyond rotational movements. In this case, the farther the central screw is screwed into the electrical housing, in other words, the less of the screw shaft can be seen inside the electrical housing, the farther away is the drive plate of the electrical housing. In a further embodiment, the screw head can be located with its underside in permanent attachment to the inside of the electrical housing; the screw head is permanently on the inside. In this case, the drive plate follows the screw revolutions and is pulled by continued screw turns on the wall of the electrical housing. By the first embodiment of the fitter can read off the screwing depth, where the clamping brackets are arranged relative to the electrical housing. In a second embodiment, only the screw head protrudes into the interior of the electrical housing. Whether the screw shaft can migrate into the interior of the electrical housing by means of rotational movements can be determined by the fact that a thread in the bottom plate or that a thread is incorporated only in the drive plate. In one embodiment, either only the bottom plate or only the drive plate has a mating thread for the thread of the central screw. In a further embodiment, both the bottom plate and the drive plate have a thread through which the central screw is screwed.

It saves material when a mandrel for guiding the clamp is plate-like attached to the electrical housing. The spine can be divided into sections. The mandrel protrudes querab out of the electrical housing. The mandrel continues the electrical housing. The mandrel runs in the same direction as the side wall of the electrical enclosure. One of the sections of the mandrel is a first, plate-shaped section. This second section is followed by a second section. The second section is similar to a round body. The first section is followed by a round body-like section. It is advantageous if a slot is present in at least one clamping clip. The dimensions of the slot, especially the length, should be tuned to a widest point of the mandrel. A mandrel designed in this way offers sufficient freedom of movement at the beginning of the rotary movement and subsequently guides the driving plate and / or the clamping clip (s) onto the trough-like bottom of the electrical housing with as little play as possible.

The connection between the drive plate and the clamp is designed to be movable. The electrical housing offers with its clamping element, more precisely with the holding and clamping device connected to it, a rotatable connection, so a rotary connection between the clamp and drive plate so that the clamps ever can emerge differently colored according to the position of the drive plate or protrude from the drive plate. By means of a split spreader pin can thus form a rotary connection form-fitting or non-positive. The clamps may be retracted in a first position behind the electrical enclosure. The pivot connection allows the clamp (s) to be pushed out behind the electrical enclosure, especially in cases where the central screw is tightened beyond a certain point.

The holding and clamping device, which adjoins the electrical housing, in an advantageous embodiment comprises a plurality of individual clamping elements. The clamp can be subdivided into sections just like the mandrel. A first section of the clamp is located immediately adjacent to the drive plate. A second, next section follows this angled substantially the shape of the outer dimensions of the electrical housing. In the first section, in particular in the section adjacent to the driver disk, the clamping bracket extends in a rectilinear extension to an orientation of the driver disk. In the second section, the clip runs angled. The clamp can z. B. between its first and its second section have a right angle. The individual sections may in particular be arranged at right angles to each other. The second section leads to a third section. The third section approximates the orientation of the first section in its orientation. The third section opens into a curved clip section. The third section is bent to the second section. In the third section, the clip opens.

Advantageously, the stop can be designed as an extension and thus as part of the drive plate. Stop and drive plate can z. B. be made in one piece as an injection molded part. It is also advantageous if the stop is arranged on the side of the drive plate, which represents the end face to the surface of the trough-like core housing. As the core housing, the electrical housing is therefore called because the clamping elements connect to the core housing. The stop may face the mounting body of the electrical housing. The stop can also be formed from a first part of the drive plate and a second part of a clamp. So the forces are split advantageous. An increased mechanical strength can be realized.

The assembly is further simplified if at least one cable opening is incorporated in the bottom plate of the electrical housing. The bottom plate is part of the core housing, the actual electrical enclosure. During transport, a cover of the cable opening may be part of the bottom plate, which in the form of a chip from the bottom plate can be broken out or cut out, z. B. because the chipboard is incorporated perforated. The chipboard can then be attached to the strain relief of the cable inserted through the cable opening on the inside of the electrical housing and cover the cable. In an original state of the electrical housing, the cable opening is closed by a clamping plate, which can be cut out with little effort and with little force and can be attached to the core housing.

The length of the screw shaft of the central screw should advantageously be matched to the height of the mandrel. Both components, central screw and mandrel, should correspond to a few millimeters in length. In such a case, the number of rotations or revolutions (in consideration of the thread pitch) of the central screw coincide with the sliding path on the mandrel. The two components, the central screw and mandrel, can in particular be tuned so that one end of the mandrel laterally represents a movement inhibition for the drive plate. The beginnings and ends of the individual sections of the mandrel determine the path of movement of the clamping brackets.

The above-described electrical housing can electrical and electronic components, eg. B. united on a board with lighting electronics record. The electrical enclosure is part of a recessed luminaire when lighting fixtures are integrated in the cover. Other uses of the electrical housing are possible, for. As a housing for a smoke sensor, a building surveillance or recording a video camera.

The possible travel for the (single) clamp is determined - u. a. - From the size of the slot, especially in relation to the size of the mandrel, more precisely the round body of the mandrel. The possible angular degree and thus the extension ratio of the clamps are determined from the revolution path to contact with the stop. The position of the rotary connection between the drive plate and the clamp, in particular the first section of the clamp, determines the maximum extendable travel of the clamp and thus the maximum diameter of the hole in the body in which the electrical housing is to be installed. The covered installation depths of the electrical housing result from or correspond to the length of the central screw. The covered installation depths of the electrical housing result from or correspond to the height of the mandrel.

With the presented electrical housing is a very accurate, precisely metered adjustment of the clamping device possible. All clamps can move evenly and at the same time become. The risk of oblique installation of electrical boxes, which often occurs in working under time pressure electricians, is reduced.

Another advantage is given by the fact that the clamps for a precise clamping need not be particularly upset. Predominantly the angled portion of the clamp can be pushed in a resilient manner beyond the intended or embossed angle of the bend out, so in the direction of the central screw. A multiple installation and removal of the housing of the electrical box is possible. The plastic deformation range of the material of the clamp must not be used for a setting. Clamping occurs in the area of elastic deformation of the material of the clamp.

The previously described combinations and exemplary embodiments can also be considered in numerous other connections and combinations.

Brief Description

• Figur 1 in perspektivischer Ansicht einen Teil des Elektrogehäuses, das eigentliche Kerngehäuse mit der Halte- und Spannvorrichtung zeigt,
• Figur 2 eine Schnittzeichnung durch ein Elektrogehäuse nach Figur 1 zeigt,
• Figur 3 eine weitere Ausgestaltung durch das eigentliche Kerngehäuse mit einer Halte- und Spannvorrichtung zeigt,
• Figur 4 eine Ausgestaltung eines Deckels in einer Ansicht von schräg oben zeigt,
• Figur 5 den Deckel nach Figur 4 in einer Ansicht von schräg unten zeigt und
• Figur 6 eine weitere Ausgestaltung eines Deckels, ähnlich dem Deckel nach Figur 4, zeigt.

The present invention may be better understood by reference to the accompanying figures, which set forth by way of example particularly advantageous design possibilities without restricting the present invention thereto

• FIG. 1 in a perspective view shows a part of the electrical housing, the actual core housing with the holding and clamping device,
• FIG. 2 a sectional drawing through an electrical housing after FIG. 1 shows,
• FIG. 3 shows a further embodiment by the actual core housing with a holding and clamping device,
• FIG. 4 shows an embodiment of a lid in a view obliquely from above,
• FIG. 5 the lid after FIG. 4 in a view from diagonally below and shows
• FIG. 6 a further embodiment of a lid, similar to the lid after FIG. 4 , shows.

figure description

The design options shown in the individual figures can also be interconnected in any form.

FIG. 1 shows an electrical housing 3, which can be used as a recessed light 1 due to its end cap 99. The electrical housing 3 has an installation body 5, which is essentially formed by the core housing 7. The core housing 7 has a bottom plate 13 from which the clamping elements such as the clamping element 17 protrude with a first clamping clip 19 or a second clamping clip 21 or a third clamping clip 23. The transition of the bottom plate 13 to the side part of the core housing 7 is almost at right angles, ie has an angle between 80 ° and 100 °.

The drive plate 41 is parallel to the bottom plate 13, in plan view of the bottom plate 13, above the bottom plate 13. The cross-sections of the drive plate 41 and the bottom plate 13 are each nearly circular in plan view. The diameter of the drive plate 41 is significantly smaller than the diameter of the bottom plate 13, in particular less than half as large compared to the diameter of the bottom plate 13. The drive plate 41 is arranged centrally to the bottom plate 13, that is, the distance from the outer edge of the drive plate 41 to the outer edge of the bottom plate 13 is the same on all sides. The distance from the outer edge of the drive plate 41 to the outer edge of the bottom plate 13 is in particular at least as large as the diameter of the drive plate 41. The drive plate 41 has a circular, central recess with a matching to a screw shaft 59 of a central screw 55 diameter and a thread the central screw 55 matching threaded fit on. The drive plate 41 also has decentralized further three recesses, wherein the decentralized recesses in the outer third of the radius of the drive plate 41 are. This means that the distance of the outer edge of the decentralized recesses to the center of the drive plate 41 is at least 2/3 of the radius of the drive plate 41. The three decentralized recesses of the drive plate 41 are uniformly spaced over the circumference of the drive plate 41, ie at the same angle to each other distributed. The bottom plate 13 has a circular, central recess with a matching to the screw shaft 59 of the central screw 55 diameter and thread. The central screw 55 passes through the central recess of the bottom plate 13 and the central recess of the drive plate 41. The central screw 55 is arranged at right angles to the bottom plate 13 and the drive plate 41. The screw head 57 (see FIG. 2 ) points into the interior 53 of the core housing 7 and is in the fully screwed state on the inside of the housing bottom or the tub bottom 11 at.

Upon rotation of the central screw 55, the drive plate 41 follows this rotational movement. If the rotational movement of the drive plate 41 is prevented, the moves Driving disk 41 parallel to the screw axis, guided by the threaded fit, away from the bottom plate 13. The state in which the drive plate 41 can freely perform a rotational movement, is henceforth referred to as the rest position of the drive plate 41. The following statements are based on the drive plate 41 in this rest position.

The clamps 19, 21 and 23 are disposed between the bottom plate 13 and the drive plate 41. Clamping clamps 19, 21 and 23 are elongated and flat, having first and second ends 25 'and 25 ", and have upper and lower sides." Flat means that clamps 19, 21 and 23 are longer than they are wide The width of the clamping brackets 19, 21 and 23 is less than the radius of the driving disc 41, but wider than the diameter of the decentralized recesses of the driving disc 41. The first end of the clamping brackets 19, 21 and 23 is located between bottom plate 13 and drive plate 41. The second ends 25 ', 25 "of the clamping brackets 21, 23 are cantilevered and freely movable in the room. Such an end 25 ', 25 "has a rounded shape, and between the two ends of the clamping brackets 19, 21 and 23 there is a kink which, in accordance with the transition between the bottom plate 13 and the side parts of the core housing 7, is almost at right angles, ie at an angle from 80 ° to 100 °., If the first ends of the clamping brackets 19, 21 and 23 between the bottom plate 13 and drive plate 41, the kink is at the level of the transition between the bottom plate 13 and side parts of the core housing 7. The in the direction of Ends 25 ', 25 "of the clamping brackets 19, 21 and 23 each adjoining the bend portions of the clamping brackets 19, 21 and 23 are each parallel to the bottom plate 13 and the side panels of the core housing 7. The parallel to the bottom plate 13 extending portion is from then on first section, the parallel to a side part of the core housing 7 extending portion is henceforth called the second section. A third section is adjacent to the second section and joins this second section towards the second ends 25 ', 25 ".This third section bends upwards, ie, approaches in its orientation the orientation of the first section have the second ends 25 ', 25 "at an angle of more than 5 ° away from the side part of the core housing. 7

At the first ends of the clamping brackets 19, 21, 23 are in the direction of the drive plate 41 directed side, henceforth referred to as the top, expansion pins 85, 87 attached (see FIG. 2 ). The expansion pins 85, 87 are fixedly connected to the clamping brackets 19, 21 and 23, preferably in a casting with the clamping brackets 19, 21 and 23 produced in an injection molding process. The Spreizstifte are each center, that means, with the same Distance between the two longitudinal sides of the clamping brackets 19, 21 and 23 attached.

The expansion pins 85, 87 have a narrow portion to be designated as a collar which is seated at right angles to the clamping brackets 19, 21 and 23, respectively, and a head which is wider in comparison to the collar and faces the collar on the side facing away from the clamping brackets 19, 21 and 23 is seated and its side facing away from the clamps 19, 21, 23 side is rounded. The head is centered on the collar, d. h., The center of the rounded head is located on the extension of the perpendicular to the clamping bracket 19, 21 and 23 extending axis of the collar. The head is divided in the middle, d. h., The head has an upwardly open slot which extends through the center of the head and extends at least until the transition of the head into the collar. The width of the slot is variable. If no pressure is exerted on the head of the expansion pin, the width of the slot is preferably 1 mm to 3 mm. If pressure is exerted on the head of the expansion pin 85, 87, the width of the slot is preferably less than 1 mm. The diameter of the head of the spreader pin is slightly larger than the diameter of the decentralized recesses of the drive plate 41 at its widest point without force on the spreader pin. Is a vertical force on the spreader, vertically towards its clamping bracket 19, 21 or 23 perpendicular axis exerted, the slot narrows in the head of the spreader pin and the diameter of the head is then at its widest point slightly smaller than the diameter of the decentralized recesses of the drive plate 41. The diameter of the collar of the expansion pin 83, 85 does not vary with a force on the Head and is with and without vertical force slightly lower than the diameter of the decentralized recesses of the drive plate 41. By the words "slightly lower" is meant a difference of a few millimeters, especially in a range of 1 mm to 5 mm. If the head of the expansion pin 85, 87 pressed by one of the decentralized recesses of the drive plate 41, a rotary joint 43 between the drive plate 41 and the (respective) clamping bracket 19, 21, 23 is made. The diameter of the expansion pins 85, 87 are at its narrowest point not smaller than half the width of the (corresponding) clamping bracket 19, 21 and 23, which is why the decentralized recesses of the drive plate 41 does not fall below this diameter.

The expanding pin 85, 87 of the (respective) clamping bracket 19, 21 and 23 projects as a rotary joint 43 respectively through one of the three decentralized recesses of the drive plate 41. The expansion pin 85 connects the respective first end of the clamping bracket 19, 21 and 23 with the drive plate 41 such in that a rotary or pivoting movement 65, that is to say a radial movement, of the clamping clamp 19, 21, 23 is possible by means of the expanding pin 85, 87 in comparison to the driving disk 41, a movement away from the driving disk 41 in parallel to the screw axis, however, is not possible. The expansion pin 85, 87 is arranged at the top of the clamping bracket 19, 21, 23 that when connecting the clamping brackets 19, 21 and 23 with the drive plate 41 via the rotary joints 43, the first ends of the clamping brackets 19, 21 and 23 is not on the Center of the drive plate 41 protrude, preferably located within the outer third of the circumference of the drive plate 41. The distance of the respective expansion pin 85, 87 to the first end of the respective clamping bracket 19, 21 or 23 is smaller than the distance of the respective expansion pin 85, 87 to the respective bend of the clamping bracket 19, 21 or 23, respectively from the center of the expansion pin 85, 87 at measured.

Performs the drive plate 41 a rotational movement, follow the clamping brackets 19, 21 and 23 due to the rotational connections 43 of this rotational movement, as long as no obstacle prevents the rotational movement of the clamping brackets 19, 21 and 23. In this, also as the rest position of the clamping brackets 19, 21 and 23 to be designated state, the clamping brackets 19, 21 and 23 are equally spaced, d. H. arranged at the same angle to each other. If the tensioning clamps 19, 21 or 23 strike against an obstacle during this rotational movement, they perform the pivoting movement 65 when the rotational movement of the drive plate 41 is maintained. The tensioning clamps 19, 21 and 23 then remain in contact with the pivoting connections 43 Mitnehmerscheibe 41 connected when the drive plate 41 is no longer in the rest position. Thus, due to the pivotal connections 43, the tensioning clamps 19, 21 and 23 of the drive plate 41 can also follow a movement of the drive plate 41 along the axis of the central screw 55.

On the outside of the bottom plate 13, three pins 69 are attached. A mandrel 69 is in two parts and consists of a plate 71 and a round body 73. The round body 73 can be described as an elongated pin with a round diameter. The plate 71 may be described as an elongated pin of oval or near-oval diameter. By nearly oval diameter is meant that the plate 71 is flattened on the narrow side of its oval diameter. Plate 71 and round body 73 are connected to each other, in particular glued or manufactured as an injection molded part. The mandrel 69 is mounted at right angles to the bottom plate 13. The plate 71 is in this case facing away from the drive plate 41, facing the round body of the drive plate 41. The mandrels 69 are connected to one side fixed to the outside of the bottom plate 13, for example, welded, glued or produced in an injection molding process as an injection molded part. The length of the mandrel 69 preferably corresponds to the length of the protruding through the opening of the housing bottom screw shaft 59 with fully screwed screw 55. Die Querschnitte der Mandrels 69 are at their widest point not greater than the distance of the outer edge of the drive plate 41 and the outer edge of the bottom plate thirteenth

The clamping bracket 19, 21, 23 has between expansion pin 85, 87 and kink a recess, an oval recess or as a slot 35, 37 to be designated recess on. The mandrels 69 each protrude through the slots 35, 37, wherein the longitudinal orientation of the cross-sections of the mandrels 69 corresponds to the longitudinal orientation of the slots 35 and 37, respectively. The length of the elongated holes 35, 37 is not greater than the distance between the expansion pin 85, 87 and kink, preferably less than the distance between the expansion pin and kink. The width of the elongated hole 35, 37 is not wider, preferably narrower, than the width of the respective clamping bracket 19, 21 or 23. The cross sections of the mandrels 69 are at their widest point not greater than the length of the slots 35 and 37th Die Edges of the longitudinal sides of the elongated holes 35, 37 are arranged parallel to the longitudinal sides of the respective clamping brackets 19, 21 or 23. Are the clamps 19, 21 and 23 connected via the rotary joint 43 with the drive plate 41, which is the first end of the clamping bracket 19, 21, 23 next edge of the narrow side of the slots 35, 37 preferably at the same height, d. The rounding of the narrow sides of the elongated holes 35, 37 corresponds to the rounding of the round body 73. The rounding of the narrow side of the plates 71 also corresponds to the rounding of the narrow sides of the slots 35, 37. The distance between the both longitudinal sides or flattened sides of the plates 71 corresponds in each case to the distance between the longitudinal sides of the oblong holes 35, 37.

During a rotational movement of the central screw 55, the driver disk 41 connected to the central screw 55 via a threaded fit 61 in the idler pulley 41 initially performs a rotational movement 63 in the rest position. The tensioning clamps 19 connected by the expanding pins 85, 87 in the form of a rotary joint 43 to the driver disk 41 , 21 and 23 follow this rotational movement as long as no obstacle stops the rotational movement 63 of the clamping brackets 19, 21 and 23. Upon execution of this rotational movement 63, the expansion pins 85, 87 each approach one of the pins 69. The mandrels 69 are located on the inner, ie the drive plate 41 facing, rounding of the slots 35, 37. The circular body 73 in this case touches the inner curve of the slots 35, 37. Stops an obstacle, the rotational movement 63 of the clamps 19, 21 or 23, perform the clamping brackets 19, 21 or 23, the pivoting movement 65, wherein the angle between the clamping brackets 19, 21 and 23 changes and the mandrels 69 are guided in the slots 35, 37. The clamping brackets 19, 21, 23 move away from the Spreizstiften 85, 87 in the direction of the buckling of the clamping brackets 19, 21 or 23. If the pins 69 on the outer, ie the kink facing, the end of the slots 35, 37, the Rotary 63 of the prevented by the rotary joints 43 with the clamping brackets 19, 21 and 23 drive plate 41 so that the drive plate 41 leaves its rest position. The drive plate 41 moves, mediated by the threaded fit 61 to the screw thread, parallel to the screw axis of the bottom plate 13 away. At the same time, mediated by the rotary joints 43, and the clamping brackets 19, 21 and 23 are moved away from the bottom plate 13. Adhere the second ends 25 ', 25 "of the clamping brackets 19, 21 and 23 to the ground, the angle at the bend of the clamping brackets 19, 21 and 23 by a clamping movement 67 of the second portions 89 of the clamping brackets 19, 21, 23 The angle of the third sections of the clamping brackets 19, 21, 23 hereby adapts to the ground.

The electrical housing 3 has in its bottom or tank bottom 13, in the outer third of the bottom plate 13, two oval, perforated sections, which are also referred to as clamping plates 93, 93 'to. These platens 93, 93 'may be described as oval-shaped slots forming a double spiral whose ends are not in communication with each other. In this way, clamping plates 93, 93 'are formed with oval slots and interposed webs. The spacing of the slots from one another is dimensioned such that the webs formed therebetween are narrower or at least as narrow as the slots, so that at a pressure exerted by the vertical force on the webs break through this and an oval opening for a grommet, that is more precisely, a Release cable opening 91, 91 '. In addition, on both sides of the oval, preferably in the center, that is, in the center of the circle described at the corners of an oval, there may be two circular recesses whose diameter is smaller than the diameter of the smallest spiral diameter. These circular openings can additionally support the breakout. The clamping plates 93, 93 'are mounted in an angular cutout between two clamping brackets 19, 21 or 23 in the bottom plate 13.

To the can-like electrical housing 3 includes an additional stop 81. The stop 81 is the rotational movement of the drive plate 41 and thus one of the drive plate 41 following rotation of the clamping brackets 19, 21 and 23 stop. The stop 81 is formed as an extension of the drive plate 41. The stop 81 is arranged on the bottom plate 13 facing side of the drive plate 41. The length of the extension corresponds to the distance of the drive plate 41 of the bottom plate 13 in the rest position, so that in a rotational movement of the drive plate 41 of the extension touches the bottom plate 13. In the bottom plate 13, an elevation is formed on the surface of the drive plate 41, at which the extension or stop 81st strikes during a rotational movement of the drive plate 41. This increase is at most as high as the distance of the drive plate 41 of the bottom plate thirteenth

As a result, the drive plate 41 moves along the screw axis by means of matching the screw thread thread of the central recess of the drive plate 41. The mandrels 69 then move within the slots of the clamps 19, 21 and 23 away from the expansion pins, in the direction of the buckling of the clamping brackets 19, 21 and 23. When the outer end of the elongated holes 35, 37 is reached, the clamping brackets 19, 21 and 23 move with the drive plate 41 away from the outside of the bottom plate thirteenth The clamping movement 67 is performed, built the clamping force to the ground.

The increase in the bottom plate 13, viewed from the direction of rotation of the drive plate 41, mounted in front of the portion in the bottom plate 13 in which the clamping plates 93, 93 'are located, so that the stop 81 is a rotational movement of the drive plate 41 and thus the clamping brackets 19th , 21, 23 stops before the platens 93, 93 'are covered by the rotational movement of the clamps 19, 21 or 23.

By a rotary movement of the central screw 55, the electrical housing 3 is fixed to the one with the central screw 55 on a supporting surface by forces acting perpendicular to the ground, that is, based on the holding element. At the same time or on the other hand, the electrical housing 3 by means of the clamping brackets 19, 21 and 23, in this case by vertically acting forces of the clamping element 17, clamped or jammed, ie secured against vertical and radial forces and locked. In this way, a setting of the electric housing 3 is achieved by a one-handed rotary motion. After breaking out of the clamping plates 93, 93 ', the cables (not shown) through the cable openings 91, 91' can be performed. A lighting fixture 197 (see FIG. 5 ) can be installed.

The lighting fixture 197 (see FIG. 5 ) is after installation as a kind of end cap 99 (see FIG. 1 ) are attached to the electrical housing 3 via, for example, a thread or a clamp connection. Both the lighting body 197 and the outer, the bottom plate 13 facing away from the edge of the side parts of the core housing 7 have mating thread, rotary or snap projections.

The can-like electrical housing can be determined by the FIG. 1 as follows also in a combination be described from functional and spatio-mechanical description.

FIG. 1 shows an electrical housing 3, which can be used as a recessed light 1 due to its end cap 99. The electrical housing 3 has an installation body 5, which is essentially formed by the core housing 7. The core housing 7 has a bottom plate 13 from which the clamping elements 17 protrude with the first clamping clip 19, the second clamping clip 21 and the third clamping clip 23. The clamps 19, 21, 23 are guided on individual thorns, such as the mandrel 69. The mandrel 69 has a guide region 31. Further guide regions 27, 29 are arranged on the guide elements which are still present. A tensioning clamp, such as the tensioning clamp 23, opens into an end region 25 "." The tensioning clamps 19, 21, 23 are shaped like the trough-like core housing 7. The core housing 7 is like a can because of its trough 11 Clamping clamps 19, 21, 23 project laterally beyond the core housing 7 and can fix the entire recessed luminaire 1 with the aid of their end regions 25 ', 25 ". The clamping brackets 19, 21, 23 are articulated via individual rotary joints 43 on a drive plate 41. The rotary joints 43 allow the respective clamping bracket 19, 21, 23 in a degree of angular rotation. The rotation due to the rotary joints 43 of the individual clamping brackets, such as the clamping brackets 19, 21, 23, is limited by a stop 81. Between individual clamping brackets 21, 23 is a pre-punched area in the clamping plate 93, 93 'with reduced force, ie with a few Newton force exertion, can be broken out of the bottom plate 13 to release cable openings 91, 91'. The movement space for the clamping brackets 21, 23 is limited by the stop 81 so that the arranged parallel to the tub bottom 11 areas of the clamping brackets 21, 23 can not sweep the cable openings 91, 91 '. In principle, a pivoting movement 65 for each clamping clip 19, 21, 23 is possible, wherein the pivoting movement 65 is possible only over a few degrees, for. B. in a range of 45 °. To the holding and clamping device 15 thus includes several components. The central screw 55 leads via its screw shaft 59, the drive plate 41 in a sliding movement, which is perpendicular to the tub bottom 11, more precisely on the bottom plate 13. As long as no stop of the clamping brackets 19, 21, 23 at a stop, such as the stop 81 has taken place, a pivoting movement 65, which takes place about the rotary joint 43, take place. By the pivoting movement 65, a clamping movement 67 with the clamping brackets 19, 21, 23 is realized simultaneously. If the clamping movement 67 of the individual clamping element 39 arrives at the end of its movement, the clamping clamps 19, 21, 23 follow the height adjustment with the aid of the screw shank 59 of the central screw 55, which operates as an actuating screw for this purpose. In the clamping elements 39 slots 35, 37 are incorporated. Through the slots 35, 37 the plate 71 merges into the round body 73. Plate 71 and round body 73 together form the mandrel 69. To promote the pivoting movement 65, the front end of the mandrel 69 provides only the round body 73. Only offset to the end of the round body 73, the plate 71 begins. In the region of the mandrel 69, the immediate adjoins the bottom plate 13, the mandrel 69 is widest. The mandrel 69 receives its width at its foot, ie immediately adjacent to the bottom plate 13, through the two composite parts of the mandrel 69, the plate 71 and the round body 73. By the interaction of slot 35, 37 and the surface of the respective mandrel 69 provides the holding and clamping device 15 guide portion 27, 29, 31 for the rotational fixation of the clamping brackets 19, 21, 23 and the drive plate 41. By this rotation fixation undergoes the holding and clamping device 15 an abutment for the screwing movements of the screw shaft 59 of the central screw 55th Once either via the stop 81 or on the interaction of the mandrels 69 with the clamping elements 17 no rotation in the bearing point of the rotary joint 43 is possible, the drive plate 41 can be tightened on the bottom plate 13 of the core housing 7. Depending on the surface configuration of the receiving recess for the electrical housing 3, the end regions 25 ', 25 "can search for spring-loaded attachment, in which case virtually no compression or deformation takes place in the region of the oblong hole 35, 37 of the clamping brackets 21, 23. The clamping movement 67 ensures a yielding Clamping the end portions 25 ', 25 ". If cables are to be inserted from the rear side into the recessed luminaire 1, the clamping plates 93, 93 'can optionally be broken off at the points of the cable opening 91, 91' provided for the break-off. The platens 93, 93 'have such shapes that subsequently, after the platens 93, 93' have been broken out of the cable openings 91, 91 ', they can be screwed on the inside of the core housing 7 as strain relief plates. For this purpose, screw threads in the clamping plates 93, 93 'and in the bottom plate 13 of the core housing 7 are provided. By the end cap 99, the rear light housing 9 is a complete recessed light 1. In the in FIG. 1 presented variant of the screw thread between the screw shaft 59 and drive plate 41 remains the central screw 55 in the inserted state with a constant depth of engagement in parallel alignment with the circular bodies 73. The round body 73 are grouped around the central screw 55 around, they lie on a larger circle than that, the is covered by the drive plate 41. Resilient cables that are to be guided into the recessed luminaire 1 via the cable opening 91, 91 'and therefore are present in the cavity for the luminaire rear housing 9 at the beginning of assembly can cause damage to the screw shaft 59 in almost no situations, because the upstream guide areas 27, 29, 31 span a protective cage around the central screw 55 around.

The previously in FIG. 1 discussed electrical enclosure 3 is in a sectional view in FIG. 2 shown so that it can be looked into the interior 53 of the core housing 7 as well as more detailed details of the end cover 99 can be seen. The recessed luminaire 1 has a larger trough-like part of the core housing 7, to which the trough bottom 11 belongs. The core housing 7, together with the holding and clamping device 15, forms the installation body 5, which can be fixed via the screw head 57 of the central screw 55. The screw-in depth 83 of the electrical housing 3 can be read off at the position of the driver disk 41 on the screw shaft 59 of the central screw 55. The central screw 55 can perform a rotary movement 63 as an actuating screw and thus tows over the threaded fit 61, the drive plate 41 in a direction by which the screwing depth 83 is changed. In this case, the screw head 57 remains on the inside of the bottom plate 13, ie in the interior 53 of the core housing 7. The rear light housing 9 provides over this with the help of its clamps 19, 21 arbitrary mounting depths, which are limited only by the depth 83 and the length of the screw shaft 59 , The rotary joint 43, which is formed in each case by an expansion pin 85, 87 and an associated opening in the drive plate 41, allows rotational movements of the clamping brackets 19, 21. The slot 33 follows via the guide portion 27 on the sliding surface 75 of the mandrel 69. Another Sliding surface of a guide portion 29 is offered by the plate 71 for the clamp 21. For the interaction between clamp 21 and mandrel 69, the clamp 21 provides a slot 35. Is the clamp 21 in abutment with the guide portion 29, a stop 77 between the mandrel 69 and clamp 21 is formed. If the drive plate 41 up to almost the end of the central screw 55, that is rotated up to the end of the thread of the screw shaft 59, so hold only the round body 73, the clamping brackets 19, 21. The clamps 19, 21 open into end portions, such as the end portion 25th The end portion 25 is laterally beyond the radius of the end cover 99. The tensioning clamps 19, 21 run in sections parallel to the side wall of the core housing 7. When the tensioning clamps 19, 21 approach the end cover 99, the tensioning clamps 19, 21 are bent away from the core housing 7 by the end regions (eg end region 25). The cover 99 is connected via the closure connection 47 with the core housing 7. The lid 99 is seated on a mounting flange of the core housing 77, which is arranged at the other end in comparison to the bottom plate 13. In the rear region 49 of the core housing 7, ie in the bottom plate 13 of the core housing 7, a cable opening 91 is prepared prepared, which is released by the chip plate 93 is pushed out at its connection nose to the bottom plate 13. The screwing depth 83 for the rear light housing 9 is brought about by a rotation of the screw head 57 and an associated parallel adjustment of the driver disk 41 (compared to the base plate 13). The clamping element 17 encloses the tub bottom 11 in its structure. In this case, the clamping element 39 follows the angled course of the trough bottom 11. The first section 79 of the clamping element 38 runs essentially parallel to the bottom plate 13 of the core housing 7. The first section 79 is adjoined by the second section 89. The second section 89 is guided at an angle to the first section 79. The second section 89 is substantially perpendicular to the first section 79. The second section 89 extends transversely to the direction of the bottom plate 13. The second section 89 runs parallel to the side wall of the core housing 7. The clamping element 39, due to its section 79, 89 extends like a wiper above or radially outwardly of the core housing 7.

The cover 99 is a light insert 45 and therefore has a receiving space 98 in which a lighting fixture (not shown) may be used. Thus, the lighting fixture radiates to the front 51 of the electrical enclosure 3 and turns the electrical enclosure into a recessed light fixture 1. Should anything in the electrical enclosure 3 be damaged, the end cover 99 must only be removed from its closure connections 47 and the interior 53 is available. Here, the core housing 7 is held in position by means of the clamping brackets 19, 21. If in the course of the installation period, the core housing 7 peu ä peu slip out of its receiving holder, because the clamping effect of the end portions 25 of the clamps 19, 21 fatigue, can be fixed by a few turns of the screw head 57, the core housing 7 again. The holding and tensioning device 15 is located at such a location of the core housing 7 that the holding and tensioning device 15 in the rear area, in particular by the connection flange of the core housing 7 and through the tub bottom 11, is covered, while unhindered by the front side region 51 an access to the interior 53 of the electrical housing 3 is given after removal of the lid.

In FIG. 3 a further variant of a rear lamp housing 109 is shown. The rear lamp housing 109 differs from the rear lamp housing 9 of FIG. 1 in that the engagement depth 183 is caused by protrusion of the screw shaft 159 in the interior 153 of the rear lamp housing 109. Thus, the proportion of the screw shaft 159 protruding in the interior 153 of the rear lamp housing 109 corresponds to the installation depth and the position of the end regions 125, 125 'of the clamping elements 117. The individual clamping clip 119 can travel along the mandrel 169. The mandrel 169 provides a portion which is plate-like, ergo may be referred to as a plate 171, and a portion which may be referred to as a round body 173. From the surface of a portion of the round body 173 and a surface of the plate 171, the sliding surface 175 is composed, which is available for sliding along the tension member 117 is available. The screw shaft 159 can be set in a rotational movement 163, so that the clamping elements 117 can travel along the sliding surface 175. The end portions 125, 125 'have a resilient property to hold over the end portions 125, 125', the clamping elements 117 on the inside of the cavity.

In the FIGS. 4 and 5 a lid 199 is shown, which is used as a light insert 145 from a rear light housing 109 (see FIG. 3 ) can make a light. In the rear region 149 of the cover 199, parts of the closure connection 147 are incorporated, which, with the light-emitting rear housing 109, offers a can-like box closed off from the front region 151. The via the central screw 155 (sz B. FIG. 3 ) fixed part of the recessed luminaire, the luminaire rear housing 109, a covering cover 199 serving as a cover is placed over the closure connection 147. Part of the cover 199 is the light insert 145. The light insert 145 is an LED or OLED lighting fixture, for which the control electronics on the electrical component 100, which is a circuit board with electronic component, is arranged. The lighting element 195 radiates from the end cover 199 in the front-side area 151. The light insert 145 can be a few millimeters high use by this design, which means less than 2 cm in height. The same electrical housing 3 (see FIG. 1 ) or the same rear lamp housing 109 (see FIG. 3 ) can be replaced by the use of another end cover 299 (s. FIG. 6 ) become a completely different device.

In FIG. 6 a closure cover 299 is shown with snap tabs 248, 248 '. The snap tabs 248, 248 'need only be in the same location as the closure connection 147. The end cover 299 is a bottom plate for electrical components 100', 100 ", 100"', 100 "". Thus, the end cover 299 is a fixing member for the electric component 100 'which is a capacitor, the electric component 100 "which is a transformer, the electric component 100"' which is a control board, and the electric component 100 "" which is an equivalent power source ,

If an electrical housing 3 or a rear light housing 9 is used, it can be made flush-mounted by a single handle from a recessed light 1 another electrical device. A slight adaptation of the electrical installation in a building, especially in individual rooms of the building, is possible. The electrical housing 3 can be mounted almost one-hand by the screw head 57 causes the setting of the holding and clamping device 15 by a few turns. After vibration or aging, it is usually sufficient to retighten the central screw 55, 155, often only fractions of a revolution.

It is presented an electrical housing 3, in which a lighting element 195 can be used to make a lighting fixture 97 from the electrical housing 3. The assembly is simple, fast and reliable. Even unpleasant Ummontagen can be done very easily and quickly. The holding and clamping device 15 is protected in the rear region 49 arranged. Mechanical effects on the holding and clamping device 15, in particular deformations of the central screw 55, 155, are largely prevented. Although only a central screw 55, 155 is to be actuated as an actuating screw during assembly, the electrical housing 3 pulls itself into the correct position and position. A straight alignment of the electrical housing 3 is easily possible. If the electrical housing 3 sit obliquely in its receiving opening, the central screw 55, 155 only a few millimeters, z. B. less than 3 mm, and the electrical housing 3 is under a slight compensation pressure to align its flange, so that the central screw 55, 155 can be tightened again.

With the holding and tensioning mechanisms described above, such as the holding and tensioning device 55, an extension of the tensioning elements can be effected by means of a central screw such as the central screw 55, in particular until a stop of the tensioning elements has taken place on the wall surrounding the housing. Subsequently, a height adjustment can be done by turning the central screw. As a result, the core housing can be infinitely adjusted only in dependence on the angular position of the shaft of the central screw in its installation depth.

Where the largest possible radius of rotation is to be kept, the mandrels have only a round guide, while in the vicinity, ie immediately adjacent to the bottom of the tub, the core housing - a compared to the beginning of the mandrel - wider guide surfaces for more stable attachment of the respective clamp on the each Dorn is offered.

LIST OF REFERENCE NUMBERS

1

recessed light

3

electrical enclosure

5

An assembly unit

7

cored

9, 109

Lights rear housing

11

Wannenboden

13

baseplate

15

Holding and clamping device

17, 117

clamping element

19, 119

first clamp

21

second clamp

23

third clamp

25, 25 ', 25 ", 125, 125'

End region, in particular a clamp

27

first management area

29

second management area

31

third management area

33

first slot

35

second slot

37

third slot

39

clip element

41

driver disc

43

rotary joint

45, 145

luminaire insert

47, 147

shutter connection

248, 248 '

snap lug

49, 149

back area

51, 151

frontal area

53, 153

Interior, in particular of the electrical housing

55, 155

Central cover or actuating screw

57

Screw head, in particular the central cover

59, 159

screw shaft

61

threaded fit

63, 163

rotational movement or rotational movement

65

Pivoting movement, in particular a clamping element

67

clamping movement

69, 169

mandrel

71, 171

Plate, in particular of the spine

73, 173

Round body, in particular of the thorn

75, 175

sliding surface

77

first stop

79

first section, in particular a clamp

81

second stop

83, 183

screw

85

first expansion pin

87

second expansion pin

89

second section, in particular a clamp

91, 91 '

cable opening

93, 93 '

clamping plates

195

Luminaire element, in particular light source such as LED

197

lighting

98

Recording room for the lighting fixture

99, 199, 299

End cover

100, 100 ', 100 ", 100'", 100 ' ^V

electric component

Claims (11)

1. Box-like housing (3) for electrics, the housing having a holding and clamping fixture (15), particularly for flush-mounted fitting as a tub-like housing for a rear of luminaires (9, 109),
   comprising a clamping device (17, 117) with at least one clamp (19, 21, 23, 119) and an actuator disc (41),
   characterized in that
   the actuator disc (41) is rotationally movable by means of a central screw (55, 150), in particular by gripping said screw from an inside (53, 153) of said housing via a screw head (57), and
   at an end range (25, 25', 25", 125, 125') of the clamp, said clamp is mounted via a rotation link (43) at the actuator disc (41),
   whereby the rotational movement of the central screw (55, 155) allows for a radial, by a thorn (69, 169) limited, tensioning movement (67) of the clamp (19, 21, 23, 119) all the way to a stop.
2. The housing (3) for electrics according to claim 1, characterized in that at least one clamp (19, 21, 23, 119) follows by adjustable height at the thorn (69, 169) a screw-in depth (83, 183) of the central screw (55, 155) into said housing (3).
3. The housing (3) for electrics according to one of the previous claims, characterized in that
   the thorn (69, 169) has a first, flat shaped portion (71, 171) and an attached, round body (73, 173),
   whereby preferentially an elongated hole (33, 35, 37) in at least one clamp (19, 21, 23, 119) is aligned upon a widest section of the thorn (69, 169).
4. The housing (3) for electrics according to one of the previous claims, characterized in that
   the rotation link (43) between clamp (19, 21, 23, 119) and actuator disc (41) is formed in a form fitting or force fitting manner by means of a divided expanding pin (85, 87).
5. The housing (3) for electrics according to one of the previous claims, characterized in that
   the clamp (19, 21, 23, 119) is running in a first section (79), particularly in a section neighbouring the actuator disc (41), in an aligned direction of an orientation of the actuator disc (41) and
   in a second section (89) angled, particularly right angular, towards the first section and
   preferably ends in a bent third section (25, 25', 25", 125, 125').
6. The housing (3) for electrics according to one of the previous claims, characterized in that
   the stop (77, 81) is an extension from the actuator disc (41), preferentially arranged at a side of the actuator disc (41), said side facing a surface of a tub-like core housing (7) like a recessed body (5) of said housing (3).
7. The housing (3) for electrics according to one of the previous claims, characterized in that
   at least one cable opening (91, 91') is incorporated in a base plate (13) of said housing (3), said base plate (13) being closed in an original condition by a cover plate (93, 93').
8. The housing (3) for electrics according to one of the previous claims, characterized in that
   a length of a screw shaft (59, 159) of the central screw (55, 155) is aligned with a height of the thorn (69, 169),
   especially matches to such an extend that
   one end of the thorn (69, 169) poses a constraint of movement for the actuator disc (41) in a lateral manner.
9. Recessed luminaire (1),
   comprising a tub-like recessed body (5) and a luminaire insert (45, 145) attachable with each other through a closing connection (47, 147), and
   the recessed body (5), at a rear portion (49, 147), having a tensioning element (17, 117) comprising an actuation screw (55, 155),
   characterized in that
   the tensioning element (17, 117) comprises an actuator disc (41) movable by means of the actuation screw (55, 155) via a thread fit (61), and at least one clamp (19, 21, 23, 119), preferably three clamps, pivot-mounted at the actuator disc (41), in particular having a rotary motion (63, 163) limited by a stop (77, 81),
   whereat the at least one clamp (19, 21, 23, 119) has a longitudinal, at least one-sided guidance area (27, 29, 31), like an elongated hole (33, 35, 37), for the guidance (27, 29, 31) of the clamp (19, 21, 23, 119) in radial motion away from the actuator disc (41),
   said area (27, 29, 31) is preferably assigned with at least one, relative to the actuator disc (41) immobile thorn (69, 169) of the recessed body (5) having a sliding surface (75, 175) to displace the clamp (19, 21, 23, 119) at the thorn (69, 169) in a direction towards a tub bottom (11), especially a base plate (13), of the recessed body (5).
10. Recessed luminaire (1) according to claim 9, characterized in that the recessed body (5) is formed by said housing (3) according to one of the claims 1 to 8.
11. Method to install a recessed luminaire (1), particularly according to one of the claims 9 or 10, comprising a luminaire element (195), a recessed body (5), and a tensioning element (17, 117), preferably with a housing (3) for electrics according to one of the claims 1 to 8,
    characterized in that
    with an one-handed rotatory motion (63, 163) of less than 180°, preferably less than 90°, of an actuation screw (55, 155) of the te nsioning element (17, 117), preferably through a swiveling motion (65) of at least one clamp element (39), the tensioning element (17, 117) is braced in a holding position and
    with additional aligned actuation motions (63, 163) induced at a head (57) of the actuation screw (55, 155), the recessed body (5) is pulled into an intermediate area spanned by one of the clamp elements (39) of the tensioning elements (17, 117) and the luminaire element (195) is manually added to the recessed body (5), in particularly by forming an electric connection,
    whereat preferably the head (57) of the actuation screw (55, 155) is at a side of the recessed body (5), the side facing the luminaire element (195), and the actuation screw (55, 155) engages by rotation through a hole (33, 35, 37) of the recessed body (5) with a thread (61) of the tensioning element (17, 117) that is on the other side of the recessed body (5), particularly by dragging the thread (61), from a pivotable position, to a stop position.

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