Housing device for arranging an electrical device therein

Abstract

Housing device (2) for arranging therein an electrical device, such as a transformer, with at least four side wall units (4) which can be releasably secured to one another, each comprising a closed surface and which together completely surround a cavity (6) circumferentially with respect to a vertical axis (8), with at least one planar base element (10) which is releasably arranged at a lower end of the four side wall units (4) in the cavity (6) with respect to the vertical axis (8) and on which an electrical device can be arranged, with at least one cover (12) which has a closed surface at least parallel or oblique to the base element (10) and which can be secured directly or indirectly to the four side wall units (4) on the side facing away from the base element (10) to cover the cavity (6), with at least one receiving unit (14) which comprises at least one end face receptacle (16),which is permanently fixed or formed on at least one of the four side wall units (4) on a side facing away from the base element (10) and which comprises at least one receiving section (18) comprising an internal thread section and running parallel or obliquely to the vertical axis (8), and with at least one fixing means (20) by which the cover (12) can be fixed directly or indirectly to at least one of the at least one end face receptacle (16) of the receiving unit (14), characterized in that the at least one end face receptacle (16) comprises a continuous recess in a surface section of a side wall unit (4) running transversely to the vertical axis (8) and a nut element which is permanently fixed to the recess, in particular welded, soldered or glued,and / or that the at least one side wall receptacle (24) comprises a continuous recess in a surface section of a side wall unit (4) running parallel to the vertical axis (8) and a nut element which is permanently fixed to the recess, continuing the recess, in particular welded, soldered or glued.

Description

[0001] The invention relates to a housing device for arranging an electrical device, such as a transformer, with at least four side wall units which can be releasably secured to one another, each comprising a closed surface and which together completely surround a cavity with respect to a vertical axis, with at least one planar base element which is releasably arranged at a lower end of the four side wall units in the cavity with respect to the vertical axis and on which an electrical device can be arranged, with at least one cover which comprises a closed surface at least parallel or oblique to the base element and which can be secured directly or indirectly to the four side wall units on the side facing away from the base element to cover the cavity, with at least one receiving unit which comprises at least one end face receptacle,which is permanently fixed or formed on at least one of the four side wall units on a side facing away from the base element and which comprises at least one receiving section comprising an internal thread section, running parallel or obliquely to the vertical axis, and with at least one fixing means by which the cover can be fixed directly or indirectly to at least one of the at least one end face receptacle of the receiving unit.

[0002] Housing devices for accommodating an electrical device are known in various designs from the prior art. They serve, for example, to protect electrical devices from environmental influences, foreign objects, and / or contact.

[0003] Depending on the degree of protection that the enclosure device must have to protect the electrical device, the protection against environmental influences, foreign bodies and / or contact must be adapted and the enclosure device must be configured.

[0004] The protection class of the housing can be represented in a so-called IP code, which is two-digit and whose first digit describes the protection against foreign bodies and contact according to ISO 20653 and DIN EN 60529 and whose second digit describes the protection against water according to ISO 20653 and DIN EN 60529.

[0005] For example, an IP54 enclosure provides complete protection against contact, although a small amount of dust may penetrate. It is also protected against splashing water from all sides.

[0006] An enclosure with IP33, on the other hand, is protected against solid foreign objects with a diameter greater than or equal to 2.5 mm and against access with a tool. It is also protected against falling water spray up to an angle of 60° from the vertical.

[0007] A generic housing device is known from EP 0 344 341 B1.

[0008] It has proven to be disadvantageous that in order to manufacture and adapt the housing devices depending on the different protection class, a large number of different components must be kept in stock in order to represent the respective protection class.

[0009] For example, to provide enclosures with air circulation, sidewall units with ventilation slots must be used. To provide particularly airtight enclosures, however, sidewall units with a closed surface, i.e., without ventilation slots, must be used.

[0010] Furthermore, the assembly of the housing device is complicated and time-consuming due to the large number of parts.

[0011] An object of an embodiment of the invention is to propose a housing device for arranging an electrical device therein, in which at least the assembly is facilitated.

[0012] This object is achieved in a housing device mentioned at the outset in that the at least one end face receptacle comprises a continuous recess in a surface section of the at least one side wall unit running transversely to the vertical axis and a nut element which is permanently fixed to the recess, continuing the recess, in particular welded, soldered or glued, and / or that the at least one side wall receptacle comprises a continuous recess in a surface section of the at least one side wall unit running parallel to the vertical axis and a nut element which is permanently fixed to the recess, continuing the recess, in particular welded, soldered or glued.

[0013] The fact that the housing device comprises a receiving unit with at least one end-face receptacle, which is permanently attached to a side wall unit and which includes a receiving section in which the securing means can be secured, facilitates assembly. This makes it possible, for example, to eliminate at least one manual arrangement of a nut on the side facing away from the securing means.

[0014] The end face mount and / or the at least one side wall mount each comprise a nut element that is permanently attached to a respective side wall unit. This facilitates assembly.

[0015] In one embodiment, the receiving section of the receiving unit is arranged in the cavity.

[0016] The electrical machine may comprise a transformer or the like.

[0017] It is conceivable that more than four sidewall units are provided. If four sidewall units are provided, they can form a quadrangular, in particular a square or rectangular, cross-section.

[0018] In a further embodiment, the receiving unit comprises at least four end-face receptacles which are evenly distributed and in particular form the corner points of a quadrilateral, in particular a square or rectangle.

[0019] In order to releasably fasten the side wall units to one another in a simple manner, it proves to be advantageous if the receiving unit comprises at least one, in particular a plurality of, side wall receptacles, each of which is non-releasably fastened or formed on at least one of the four side wall units and which each comprise at least one receiving section comprising an internal thread section and running transversely or obliquely to the vertical axis, wherein a further side wall unit can be releasably fastened to the side wall unit comprising the side wall receptacle by at least one of the at least one fixing means.

[0020] The mutual fixing of the individual side wall units can be improved if at least three side wall receptacles are provided, which are arranged one below the other with respect to the vertical axis, in particular in a row.

[0021] In order to adapt the housing device to different protection classes in a simple manner, in a further development of the housing device at least one modular ventilation device is provided, which comprises at least one rod-shaped spacer element which can be arranged or is arranged in or on one of the at least one end face receptacles and by means of which the cover can be or is spaced apart from the four side wall units without contact.

[0022] By means of at least one spacer element, a gap can be created between the lid in the fixed state and the upper edge of the side wall units, which enables ventilation of the cavity.

[0023] Because the ventilation system is modular, the same components can be used without having to replace them. For example, the same side wall units with a closed surface can be used for all protection classes. Ventilation is provided by at least one spacer element, as required for the corresponding protection class.

[0024] In order to create a gap of uniform width, at least four spacer elements can be provided which are evenly distributed and in particular form the corner points of a quadrilateral, in particular a square or a rectangle.

[0025] By means of the at least one securing means, the cover can be secured directly or indirectly to at least one of the at least one end-face receptacles of the receiving unit. If the securing means directly secures the cover, the cover rests flatly or linearly against the side wall units, and the securing means directly creates a rear engagement with the end-face receptacle of the receiving unit.

[0026] If the cover is in direct contact with the side wall units in a surface or line, the cover can overlap and / or project beyond the side wall units transversely to the vertical axis.

[0027] If the fixing means fixes the cover indirectly to the end face receptacle, it proves to be advantageous if the spacer element comprises an external thread section, with which the spacer element can be arranged and fixed on the internal thread section of the end face receptacle, and a recess comprising an internal thread section, which is arranged on the end facing away from the external thread section and in which the fixing means, by means of which the cover can be fixed, can be arranged.

[0028] The adaptation and alignment of the housing device to the respective protection class can be further simplified if the base element forms a component of the ventilation device and comprises a closed surface or a surface comprising a plurality of openings.

[0029] If the floor element has a closed surface, the risk of dirt and moisture penetration can be minimized.

[0030] If the base element comprises a closed surface, the lid and / or the base element may comprise a circumferential seal with which the lid and / or the base element is sealed against the side wall units.

[0031] If the floor element has a surface with a large number of openings, air circulation through the cavity can be ensured.

[0032] In order to protect access to the interior from environmental influences, foreign bodies and / or contact and at the same time to enable air circulation, it proves to be advantageous if the ventilation device comprises at least one cover element which extends parallel or obliquely to the base element, which can be fixed on the side facing away from the base element on the at least four side wall units directly from the outside in a planar or linear manner on at least one of the at least one end face receptacles and which comprises a closed surface or a surface having a plurality of openings.

[0033] The housing device can be made compact if the cover element is fixed by the spacer.

[0034] In one embodiment, it is provided that the surfaces of the base element and the cover element, which run parallel or obliquely to one another, are designed to be identical or corresponding, in particular in terms of arrangement, cross-section and number of openings.

[0035] It proves to be advantageous if the plurality of openings in the surface of the base element and / or the cover element each comprise an identical or a different cross-section and / or if all or some of the plurality of openings comprise a cross-section which is less than or equal to 144 mm 2 is, in particular less than or equal to 50 mm 2 .

[0036] This allows the base element and cover element to be configured to ensure the respective protection class against environmental influences, foreign bodies and / or contact.

[0037] In one embodiment of the housing device, it is provided that the four side wall units comprise two mutually opposite and spaced-apart transverse side wall units, wherein each of the two transverse side wall units comprises at least two mutually opposite side wall receptacles, and that the four side wall units comprise two mutually opposite and spaced-apart longitudinal side wall units by the transverse side wall units, wherein each longitudinal side wall unit is arranged on two transverse side wall units.

[0038] Furthermore, the housing device comprises embodiments in which at least one of the at least four side wall units comprises a single side wall element that forms the closed surface, and / or in which at least one of the at least four side wall units comprises at least two side wall elements that can be detachably or non-detachably secured to one another and that form the closed surface.

[0039] If the four side wall units each comprise a single side wall element, the housing device can be designed with reduced components.

[0040] If at least one of the four sidewall units comprises at least two sidewall elements, access and / or making the cavity accessible from the outside can be simplified. In this case, the housing device can be preassembled, and an electrical machine can be arranged, replaced, serviced, or removed again in the cavity simply by removing and / or reattaching a sidewall element.

[0041] The side wall units can be provided simply and cost-effectively if the side wall units, in particular the side wall elements of the side wall units, the base element, the cover element and / or the cover, comprise a bent-stamped part and / or comprise a coating, in particular galvanized or powder-coated.

[0042] In order to protect the electrical machine from damage, it is advantageous if at least one of the four side wall units comprises an earthing as an integrated common component and / or comprises a receptacle for an earthing designed as a separate component.

[0043] If the earthing is designed as an integrated common component, it can be formed by a bending section, in particular one of the transverse side wall units.

[0044] If the receptacle is designed to accommodate an earthing formed as a separate component, the receptacle can be formed by the bending section with one or more perforations.

[0045] In order to be able to transport the housing device in a simple manner, an embodiment of the housing device comprises at least one, in particular two, foot rail(s) running parallel to one another, on which at least two side wall units, in particular the two longitudinal side wall units, and the floor element rest in a planar or linear manner and can be spaced apart from a base.

[0046] The base rail can include an extension that allows a transport means, such as a forklift or pallet truck, to reach underneath the housing device. This allows transport of the housing device, particularly in the assembled state. Furthermore, the at least one base rail ensures a distance between the electrical machine and the ground.

[0047] In order to easily position the side wall units on the at least one foot rail, one embodiment of the housing device provides that the at least one foot rail on the side facing the side wall units comprises a region which is recessed in the direction of the ground with respect to the vertical axis and which is designed to correspond, in particular complementarily, to the distance between the two side wall units and in which the side wall units and the floor element can be arranged, and / or that the at least one foot rail comprises a region which is offset in the direction of the vertical axis with respect to the recessed region, to which region at least one side wall unit can be fixed with a region running transversely to the vertical axis.

[0048] The recessed section allows the side wall units to be easily positioned along the base rail. Because at least one side wall unit can be secured to the base rail, and the side wall units are thus secured to each other, all side wall units can be fixed in position relative to the base rail.

[0049] In this case, the floor element can be inserted into the side wall units without additional fastening means and can be held circumferentially by the side wall units against movement transverse to the vertical axis.

[0050] Finally, an embodiment of the housing device can comprise at least two rollers, each on a base rail. This allows the housing device to be moved even without a lifting truck.

[0051] Further features, details and advantages of the invention emerge from the appended patent claims, from the drawings and the following description of three preferred embodiments of the housing device.

[0052] The drawing shows: Fig. 1 is an exploded isometric front view of a first embodiment of the housing device; Fig. Figure 2 is an exploded isometric front view of a second embodiment of the housing device; Fig. 3 is an exploded isometric front view of a third embodiment of the housing device; Fig. 4 a perspective detailed view of the foot rail and parts of the housing device; Fig. 5 a perspective detailed view of the earthing receptacle.

[0053] The figures show three exemplary embodiments of a housing device, designated overall by reference numeral 2. An electrical device, such as a transformer (not shown in the figures), can be arranged in each of the housing devices 2.

[0054] The three illustrated embodiments of the housing device 2 have in common that they comprise at least four sidewall units 4 that can be releasably secured to one another. The sidewall units 4 each comprise a closed surface and together completely surround a cavity 6 circumferentially with respect to a vertical axis 8.

[0055] In addition, the housing devices 2 shown each comprise a planar base element 10 which is detachably arranged at a lower end of the four side wall units 4 in the cavity 6 with respect to the vertical axis 8 and on which an electrical device can be arranged.

[0056] Opposite the base element 10, a cover 12 is provided which comprises a closed surface at least parallel or oblique to the base element 10 and which can be fixed directly or indirectly to the four side wall units 4 on the side facing away from the base element 10 in order to cover the cavity 6.

[0057] To secure the cover 12, the housing devices 2 comprise a plurality of receiving units 14, which comprise at least four end-face receptacles 16, which are permanently fixed to two of the four side wall units 4 on a side facing away from the base element 10. The end-face receptacles 16 each comprise a receiving section 18 comprising an internal thread section, extending parallel or obliquely to the vertical axis 8.

[0058] In addition, the housing device 2 comprises a plurality of fixing means 20 by means of which the cover 12 can be fixed directly or indirectly to at least one of the at least one end face receptacle 16 of the receiving unit 14.

[0059] In the three exemplary embodiments of the housing device 2, the four side wall units 4 comprise two opposite and spaced-apart transverse side wall units 22, wherein each of the two transverse side wall units 22 comprises at least two opposite side wall receptacles 24. Furthermore, the four side wall units 4 comprise two opposite longitudinal side wall units 26, spaced from each other by the transverse side wall units 22, wherein each longitudinal side wall unit 26 is arranged on two transverse side wall units 22.

[0060] In the three embodiments of the housing device 2, at least one of the four side wall units 4 comprises an earthing 28, which is designed as an integrated common component.

[0061] In order to make the housing device 2 easier to transport, the embodiments shown include that the side wall units 4 are arranged on two foot rails 30 running parallel to one another.

[0062] These foot rails 30 comprise, on the side facing the side wall units 4, an area which is recessed in the direction of the ground with respect to the vertical axis 8 and which is designed to correspond, in particular complementarily, to the distance between the two side wall units 4 and in which the side wall units 4 and the floor element 10 can be arranged.

[0063] Furthermore, the foot rails 30 comprise a region offset in the direction of the vertical axis 8 with respect to the recessed region, to which at least one side wall unit 4 with a region 32 running transversely to the vertical axis can be fixed.

[0064] Fig. Figure 1 shows a first embodiment in which the lid 12 rests directly against the side wall units 4. The base element 10 comprises a closed surface. As a result, the cavity 6 is surrounded by closed surfaces, namely the lid 12, the side wall units 4, and the base element 10.

[0065] In addition, the side wall units 4 of the housing device 2 according to Fig. 1 each have a single side wall element 34 which forms the closed surface.

[0066] For easier transport, the embodiment according to Fig. 1 on the foot rails 30 rollers 36.

[0067] The Fig. 2 and Fig. 3 show a second and a third embodiment of the housing device 2.

[0068] These include, in addition to Fig. 1 shown embodiment, a modular ventilation device 38. The modular ventilation device 38 comprises according to Fig. 2 and Fig. 3 four rod-shaped spacer elements 40, which are arranged in or on one of the at least one end-face receptacle 16. The cover 12 is fixed to the spacer elements 40 at a distance from the four side wall units 4 without contact.

[0069] In addition, the ventilation device 38 comprises the floor element 10, which comprises a surface comprising a plurality of openings.

[0070] Arranged parallel to the lid 12, the ventilation device 38 comprises at least one lid element 42 which extends parallel or obliquely to the base element 10, which can be fixed directly from the outside on the side facing away from the base element 10 on the at least four side wall units 4 in a planar or linear manner on at least one of the at least one end face receptacles 16 and which comprises a surface having a plurality of openings.

[0071] In the Fig. 2 and Fig. In the exemplary embodiments shown in Figure 3, the mutually parallel or oblique surfaces of the base element 10 and the cover element 42 are identical or corresponding, particularly in terms of arrangement, cross-section, and number of openings. The openings are formed by grids.

[0072] In the embodiment according to Fig. 2, the side wall units 4, as in the embodiment according to Fig. 1 is formed by a single side wall element 34.

[0073] Fig. 3 shows an embodiment in which one of the side wall units 4 comprises two side wall elements 34.

[0074] What is common to all embodiments is that the side wall units 4 of the housing device 2, in particular the side wall elements 34 of the side wall units 4, the base element 10, the cover element 42 and / or the cover 12, comprise a bent-stamped part and / or comprise a coating, in particular are galvanized or powder-coated.

[0075] Fig. 4 shows a detailed view of foot rail 30 and the arrangement of the side wall units 4 on it.

[0076] Fig. 5 shows a detailed view of the earthing 28.

[0077] The features of the invention disclosed in the above description, in the claims and in the drawings can be essential both individually and in any combination in the realization of the invention in its various embodiments. List of reference symbols 2 Housing device 4 side wall units 6 cavity 8 vertical axis 10 floor element 12 lids 14 Recording unit 16 frontal shot 18 Recording section 20 fixing agents 22 transverse side wall units 24 side wall mount 26 long side wall units 28 Grounding 30 foot rail 32 Area 34 side wall element 36 rolls 38 Ventilation system 40 spacer element 42 cover element

Claims

[1] Housing device (2) for arranging therein an electrical device, such as a transformer, with at least four side wall units (4) which can be releasably secured to one another, each comprising a closed surface and which together completely surround a cavity (6) with respect to a vertical axis (8), with at least one planar base element (10) which is releasably arranged at a lower end of the four side wall units (4) in the cavity (6) with respect to the vertical axis (8) and on which an electrical device can be arranged, with at least one cover (12) which has a closed surface at least parallel or oblique to the base element (10) and which can be secured directly or indirectly to the four side wall units (4) on the side facing away from the base element (10) to cover the cavity (6), with at least one receiving unit (14) which comprises at least one end face receptacle (16),which is permanently fixed or formed on at least one of the four side wall units (4) on a side facing away from the base element (10) and which comprises at least one receiving section (18) comprising an internal thread section, running parallel or obliquely to the vertical axis (8), and with at least one fixing means (20) by which the cover (12) can be fixed directly or indirectly to at least one of the at least one end face receptacle (16) of the receiving unit (14), , characterized bythat the at least one end face receptacle (16) comprises a continuous recess in a surface section of a side wall unit (4) running transversely to the vertical axis (8) and a nut element which is permanently fixed to the recess, continuing the recess, in particular welded, soldered or glued, and / or that the at least one side wall receptacle (24) comprises a continuous recess in a surface section of a side wall unit (4) running parallel to the vertical axis (8) and a nut element which is permanently fixed to the recess, continuing the recess, in particular welded, soldered or glued. [2] Housing device (2) according to claim 1, characterized byin that the receiving unit (14) comprises at least one, in particular a plurality of, side wall receptacles (24), each of which is non-releasably fixed or formed on at least one of the four side wall units (4) and which each comprise at least one receiving section (18) comprising an internal thread section and running transversely or obliquely to the vertical axis (8), wherein a further side wall unit can be releasably fixed to the side wall unit comprising the side wall receptacle (24) by at least one of the at least one fixing means (20). [3] Housing device (2) according to claim 1 or 2, characterized by at least one modular ventilation device (38) comprising at least one rod-shaped spacer element (40) which can be arranged or is arranged in or on one of the at least one end face receptacles (16) and by means of which the cover (12) can be or is spaced apart from the four side wall units (4) without contact. [4] Housing device (2) according to claim 3, characterized by that the spacer element (40) comprises an external thread section, with which the spacer element (40) can be arranged and fixed on the internal thread section of the end face receptacle (16), and a recess comprising an internal thread section, which is arranged on the end facing away from the external thread section and in which the fixing means (20), by means of which the cover (12) can be fixed, can be arranged. [5] Housing device (2) according to one of claims 3 or 4, characterized by that the floor element (10) forms a component of the ventilation device (38) and comprises a closed surface or a surface comprising a plurality of openings. [6] Housing device (2) according to one of claims 3 to 5, characterized bythat the ventilation device (38) comprises at least one cover element (42) which extends parallel or obliquely to the base element (10), which can be fixed directly from the outside on the side facing away from the base element (10) on the at least four side wall units (4) in a planar or linear manner on at least one of the at least one end face receptacles (16) and which comprises a closed surface or a surface having a plurality of openings. [7] Housing device (2) according to claim 6, characterized by that the surfaces of the base element (10) and the cover element (42) which run parallel or obliquely to one another are designed to be identical or corresponding, in particular in terms of arrangement, cross-section and number of openings. [8] Housing device (2) according to one of claims 6 or 7, characterized bythat the plurality of openings in the surface of the base element (10) and / or the cover element (42) each comprise an identical or a different cross-section and / or that all or the largest of the plurality of openings comprises a cross-section which is less than or equal to 144 mm 2 is, in particular less than or equal to 50 mm 2 . [9] Housing device (2) according to one of the preceding claims, characterized byin that the four side wall units (4) comprise two transverse side wall units (22) lying opposite one another and spaced apart from one another, wherein in each case one of the two transverse side wall units (22) comprises at least two side wall receptacles (24) lying opposite one another, and in that the four side wall units (4) comprise two longitudinal side wall units (26) lying opposite one another and spaced apart from one another by the transverse side wall units (22), wherein in each case one longitudinal side wall unit is arranged on two transverse side wall units (22). [10] Housing device (2) according to one of the preceding claims, characterized bythat at least one of the at least four side wall units (4) comprises a single side wall element (34) which forms the closed surface, and / or that at least one of the at least four side wall units (4) comprises at least two side wall elements (34) which can be detachably or non-detachably fastened to one another and which form the closed surface. [11] Housing device (2) according to one of claims 6 to 10, characterized by that the side wall units (4), in particular the side wall element (34) of the side wall units (4), the base element (10), the cover element (42) and / or the cover (12), comprises a bent-stamped part and / or comprises a coating, in particular is galvanized or powder-coated. [12] Housing device (2) according to one of the preceding claims, characterized bythat at least one of the four side wall units (4) comprises an earthing (28) as an integrated common component and / or comprises a receptacle for an earthing (28) designed as a separate component. [13] Housing device (2) according to one of claims 9 to 12, characterized by at least one, in particular two, foot rails (30) running parallel to one another, against which at least two side wall units, in particular the two longitudinal side wall units (26), and the floor element (10) rest in a planar or linear manner and can be spaced apart from a base. [14] Housing device (2) according to claim 13, characterized bythat the at least one foot rail (30) on the side facing the side wall units (4) comprises a region which is recessed in the direction of the ground with respect to the vertical axis (8), which region is designed to correspond, in particular complement, to the distance between the two side wall units (4) and in which the side wall units (4) and the floor element (10) can be arranged, and / or that the at least one foot rail (30) comprises a region which is offset in the direction of the vertical axis (8) with respect to the recessed region, to which region at least one side wall unit with a region (32) running transversely to the vertical axis (8) can be fixed.

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