Compact surface-mounted housing

Abstract

The present invention relates to a compact surface-mounted housing (1) comprising an upper shell (10) and a lower shell (20) which are fastened to one another, wherein the lower shell (20) comprises a hollow body (21) which comprises, at the top, a connecting flange of the lower shell (22) for connecting to the upper shell (10), two mounting flanges, arranged on its bottom, of the lower shell (23) which each extend to the outside starting from opposite sides of the body, and two cable leadthroughs (24) which are each arranged on the opposite sides. The surface-mounted housing is of compact design, saves installation space, fulfils the IP68 / IP69 protection classes, complies with the EMC requirements, and is corrosion-resistant and oxidation-resistant.

Description

Title: COMPACT SURFACE MOUNTED ENCLOSURE TECHNICAL FIELD

[0001] The present invention relates to a surface-mounted housing used for connectors, particularly industrial connectors. STATE OF THE ART

[0002] Surface-mounted housings for existing connectors, especially industrial connectors, are standard products that are robust and require a larger installation space, which usually results in high costs. CONTENT OF THE PRESENT INVENTION

[0003] The object of the present invention is to propose a surface-mounted housing for industrial connectors which is compact, saves installation space and generates low costs.

[0004] The object of the present invention is achieved by a compact surface-mounted package comprising an upper shell and a lower shell which are fastened to one another, wherein the lower shell comprises a hollow body which has a lower shell connecting flange at the top for connecting to the upper shell, two lower shell mounting flanges arranged at its bottom, each extending outwardly from opposite sides of the body, and two cable entries each arranged on the opposite sides.

[0005] In an advantageous embodiment, it is provided that the upper shell comprises a hollow continuous body which has a Upper shell mounting flange, a polygonal projection protruding from the upper shell mounting flange, and an upper shell connecting flange arranged at its bottom for connecting to the lower shell connecting flange.

[0006] In an advantageous embodiment, the connecting flange of the lower shell is provided with a threaded opening on each of its opposite sides, wherein two opposing central threaded openings are provided within the body of the upper shell, wherein the central threaded openings of the upper shell are aligned with the threaded openings of the connecting flange of the lower shell during assembly of the upper shell and the lower shell, wherein the upper shell and the lower shell are secured together by a securing element. The securing element is preferably a screw, a bolt, or the like. Screws are passed through the central threaded openings of the upper shell and the threaded openings of the connecting flange of the lower shell, which are aligned with one another, in order to secure the upper shell and the lower shell together.An internal locking mechanism provides security without requiring any additional space, thus saving installation space.

[0007] In an advantageous embodiment, a sealing groove for receiving a first sealing ring is provided on the connecting flange of the upper shell, and / or a sealing groove for receiving a second sealing ring is arranged on a side wall of the polygonal projection. When the upper shell and the lower shell are secured together, the first sealing ring ensures a seal between the connecting flange of the upper shell and the connecting flange of the lower shell. When the upper shell and a housing of a mating connector are plugged together, the second sealing ring ensures For a seal between the upper shell and the housing of the mating connector. This creates a housing that meets protection ratings up to IP68 / IP69.

[0008] In an advantageous embodiment, it is provided that the mounting flanges of the lower shell each comprise two mounting sections and a protective earthing connection section arranged therebetween, which protrudes from the mounting sections, wherein the The protective grounding connection section has a hole for screwing in a protective grounding screw to establish a protective grounding connection. Preferably, each of the two mounting flanges of the lower shell has a protective grounding connection section, thereby establishing the connection of two protective grounds (PE). Preferably, a hole in the mounting section serves to screw in a screw to attach the surface-mounted housing to a device, such as a panel of a control cabinet or a wall of a building / vehicle compartment.

[0009] In an advantageous embodiment, it is provided that the lower shell consists of a metal, in particular aluminum or an aluminum alloy, wherein the outer surface of the lower shell, apart from the protective earthing connection section, the connection flange of the lower shell and the cable entries, is sprayed with powder. Preferably, the upper shell also consists of a metal, in particular aluminum or an aluminum alloy. Advantageously, the surface-mounted metal housing represents an EMC (electromagnetic compatibility) connection housing. Preferably, the outer surface of the lower shell is sprayed with a black powder coating containing plastic components (e.g., resin, aldehyde, etc.) to protect the lower shell from oxidation and corrosion. However, since the protective earthing connection section, the connection flange of the lower shell Since the cable entry must be connected to the protective earthing screw, the connecting flange of the upper sheath, or the cable terminal, respectively, these parts are not powder-coated. Since the protective earthing connection section protrudes from the mounting sections, it is preferable not to be powder-coated during powder-coating. Preferably, the outer surface of the upper sheath is also powder-coated.

[0010] In an advantageous embodiment, at least one of the cable entries is closable. If the cable only needs to be connected from one side, the cable entry on the other side can be closed from the inside of the lower cover.

[0011] In an advantageous embodiment, the cable entries are designed to accommodate cable connectors from M20 to M40. Cables are connected to the lower casing via the cable entries. To accommodate different cable connector diameters from M20 to M40, the cable entries can also be designed in different sizes.

[0012] In an advantageous embodiment, the surface-mounted housing is designed as a socket housing. Existing modular inserts are preferably accommodated in the socket housing, while plug contacts are accommodated in the modular inserts. The housing of the mating connector is preferably designed as a plug housing.

[0013] By providing the internal locking mechanism, the surface-mounted package according to the invention has a compact design, saves installation space, and is convenient for on-site installation by the user. The two-part arrangement of the upper shell and the lower shell allows for flexible configuration of the surface-mounted package according to the invention. By designing two sealing elements, the surface-mounted housing according to the invention achieves the IP68 / IP69 protection class. By designing the protective earthing connection section, the surface-mounted housing according to the invention realizes a PE connection. In addition, due to the materials of the upper shell and the lower shell as well as the process for spraying the surface with powder, the surface-mounted housing according to the invention meets the EMC (electromagnetic compatibility) requirements and is resistant to corrosion and oxidation. SHORT DESCRIPTION OF THE DRAWING

[0014] Embodiments of the present invention are illustrated in the drawings and explained in more detail below. The figures show:

[0015] Fig. 1 shows a perspective view of a surface mount package according to an embodiment of the present invention;

[0016] Fig. 2 shows an exploded view of the surface mount package of Fig. 1;

[0017] Fig. 3 shows a perspective view of a lower shell of the surface mount package of Fig. 1;

[0018] Fig. 4 shows a plan view of an upper shell of the surface mount package of Fig. 1;

[0019] Fig. 5 shows a bottom view of the upper shell of the surface-mount package of Fig. 1; and

[0020] Fig. 6 shows a sectional view of the surface-mount package of Fig. 1. DETAILED DESCRIPTION

[0021] The technical solutions of the present invention are described in more detail below using exemplary embodiments and in conjunction with the accompanying drawings. Throughout the description, identical or similar reference numerals denote identical or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to illustrate the general concept of the present invention and should not be construed as limiting the present invention.

[0022] 1 and 2 show a perspective view and an exploded view of a surface-mounted enclosure according to an embodiment of the present invention. The surface-mounted enclosure is intended to be mounted on a device such as a panel of a control cabinet, a junction box, etc., or a wall of a building / vehicle compartment. The surface-mounted enclosure is designed as a receptacle housing in which existing modular inserts can be received to provide power and / or signal connections. The surface-mounted enclosure 1 is a two-part enclosure comprising an upper shell 10 and a lower shell 20. During assembly, the two shells are attached to each other, providing more installation space to accommodate larger modular inserts or a higher number of modular inserts to carry higher currents.

[0023] As shown in Fig. 2, the upper shell 10 constitutes a compact housing that is generally rectangular. However, those skilled in the art should understand that the shape of the upper shell is not limited to a substantially rectangular shape, and any other shape known in the art (such as a rectangular shape) may be used. B. a circle, a square, and the like). The upper shell 10 comprises a hollow continuous body 11, that is, the upper shell 10 constitutes a housing whose upper and lower ends are open. The body 11 comprises an upper shell mounting flange 12 disposed at the top of the body. As shown in Fig. 4, the upper shell mounting flange 12 is substantially rectangular, with four corners of the rectangle each provided with a threaded opening 121, wherein the female housing and a housing of a mating connector (not shown), which is designed as a male housing, can be assembled together by means of screws passed through these threaded openings. The body 11 further comprises an upper shell connecting flange 14 disposed at the bottom of the body. As shown in Fig.As shown in Fig. 5, the connecting flange of the upper shell 14 is substantially rectangular, wherein a sealing groove is provided in the connecting flange of the upper shell 14, which takes the shape of a racetrack, and a first sealing ring 141 is arranged in the sealing groove. When the upper shell 10 and the lower shell 20 are assembled, the first sealing ring 141 ensures a seal between the upper shell and the lower shell, as clearly shown in Fig. 6. Furthermore, preferably, the four corners of the connecting flange of the upper shell 14 are each provided with a threaded opening 142 so that the upper shell can be mounted by screwing directly to a panel of a device or to a wall of a building / vehicle compartment. The body 11 also includes a projection 13 protruding from the mounting flange of the upper shell 12. The projection 13 is polygonal and surrounds a through-hole 15 of the body 11, as shown in Fig. 4.On an outer side wall of the projection, a sealing groove is provided in which a second sealing ring 131 is arranged. When the upper shell 10 and a housing of a mating connector (not shown) are assembled, the second sealing ring 131 ensures a seal between the upper shell and the. Housing of the mating connector. Within the body 11, on two opposite sides of the through-hole 15, a central threaded opening 111 is arranged. Preferably, a hole 112 for mounting a modular insert (not shown) is arranged at each of the four corners of the through-hole 15. The upper shell is made of a metal, for example aluminum or an aluminum alloy, in particular of a die-cast aluminum, to provide an EMC (electromagnetic compatibility) connector housing.

[0024] As further shown in Figs. 2 and 3, the lower shell 20 is generally rectangular. However, those skilled in the art should understand that the shape of the lower shell is not limited to a substantially rectangular shape and may take any other shape known in the art (such as a circle, a square, and the like). The lower shell 20 comprises a hollow body 21 which is a shell with an open top and a closed bottom. The body 21 includes a lower shell connecting flange 22 at the top for connecting to the upper shell 10, in particular the connecting flange of the upper shell 14. The lower shell connecting flange 22 is substantially rectangular and surrounds an opening 25, with a threaded opening 221 provided on each of the two opposite sides of the rectangle. When the upper shell 10 and the lower shell 20 are assembled, the threaded openings 221 are, as shown in Fig.6, are aligned with two central threaded openings 111 of the upper shell, after which a securing element (such as a screw, a bolt, etc.) is successively passed through the threaded openings 111 and 221 to fasten the upper shell 10 and the lower shell 20 together. Furthermore, the first sealing ring 141 ensures a seal between the connecting flange of the lower shell 22 and the connecting flange of the upper shell. Shell 14. The body 21 also includes two mounting flanges of the lower shell 23 arranged at its bottom, each extending outwardly from opposite sides of the body. The mounting flanges of the lower shell 23 each include two mounting portions 232 and a protective grounding connection portion 231 arranged therebetween, the protective grounding connection portion 231 protruding from the mounting portions 232. Both the protective grounding connection portions 231 and the mounting portions 232 are each provided with a hole, the hole of the protective grounding connection portion 231 serving for screwing in a protective grounding screw (not shown) to realize protective grounding, the hole of the mounting portion 232 serving for screwing in a screw to fasten the lower shell 20 to a panel of an apparatus or to a wall of a building / vehicle compartment.The body 21 also includes two cable entries 24 arranged on its opposite sides, i.e., lateral cable entries. The cable entries 24 are designed to accommodate cable connectors from M20 to M40 (not shown). As shown in Fig. 3, a cable entry can be closed from the inside of the lower shell when not needed. The lower shell 20 is made of a metal, for example, aluminum or an aluminum alloy, in particular of die-cast aluminum, to achieve EMC. However, when used in harsh outdoor environments, the aluminum housing is easily subject to corrosion and oxidation. To avoid this problem, the outer surface of the housing is sprayed with powder, for example, a black powder coating containing plastic components (e.g., resin, aldehyde, etc.).Since the protective grounding connection portion 231 of the mounting flange of the lower shell 23 protrudes from the mounting portions 232, the protective grounding connection portion 231 is not sprayed with powder. the cable entry 24 or the connecting flange of the lower sheath 22 is not sprayed with powder due to its connection to a cable connection or the upper sheath.

[0025] For upper shells of different sizes, lower shells of different sizes can be designed to match the upper shells, thus providing surface mount enclosures of different sizes.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

REQUIREMENTS 1. Compact surface-mounted enclosure (1) comprising an upper shell (10) and a lower shell (20), wherein the lower shell (20) includes a lower cavity (21), a lower connecting flange (22) for connecting to the upper shell (10), two lower mounting flanges (23) arranged on its underside, each extending outwards from opposite sides of the body, and two cable entries (24) arranged on opposite sides of the body.

2. Compact surface-mounted housing (1) according to claim 1, wherein the upper shell (10) comprises an upper cavity (11) having at the top an upper mounting flange (12), a polygonal projection (13) extending from the upper mounting flange, and an upper connecting flange (14) arranged on its underside for connecting to the lower connecting flange (22).

3. Compact surface-mounted housing (1) according to claim 2, wherein the lower connecting flange (22) has a threaded opening (221) on each of its opposite sides, wherein two opposing central threaded openings (111) are provided within the cavity (11) of the upper shell (10), wherein the central threaded openings (111) of the upper shell (10) are aligned with the threaded openings (221) of the lower connecting flange (22) when the upper shell (10) and the lower shell (20) are assembled, wherein the upper shell (10) and the lower shell (20) are fixed together by a locking element (30).

4. Compact surface-mounted housing (1) according to claim 2 or 3, wherein the upper connecting flange (14) is provided with a sealing groove for receiving a first sealing ring (141), and / or on a side wall of the polygonal A sealing groove for receiving a second sealing ring (131) is arranged on the projection (13).

5. Compact surface-mounted housing (1) according to any one of claims 1 to 3, wherein the lower mounting flanges (23) each comprise two mounting sections (232) and an intermediate protective earthing connection (231) which protrudes from the mounting sections (232), wherein the protective earthing connection (231) has an opening for screwing in a protective earthing screw to implement protective earthing.

6. Compact surface-mounted housing (1) according to claim 5, wherein the lower shell (20) is made of metal, in particular aluminium or an aluminium alloy, wherein, apart from the protective earthing connection (231), the lower connecting flange (22) and the cable entries (24), the outer surface of the lower shell (20) is powder-coated.

7. Compact surface-mounted housing (1) according to any one of claims 1 to 3, wherein one of the cable entries (24) may be closed.

8. Compact surface-mounted housing (1) according to any one of claims 1 to 3, wherein the cable entries (24) are designed such that cable connections from M20 to M40 can be installed.

9. Compact surface-mounted housing (1) according to one of claims 1 to 3, wherein the housing is designed as a bushing housing.

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