DE2108465A1 - Sealed housing - Google Patents

Description

Patent Attorneys Dipl.-Inc. F. Wsicxmann, 2108465

Dipl.-Ing. H. Weickmann, D1PL.-PHYS. Dr. K. Fincke Dipl.-Ing. F. A-Weickmann, Dipl.-Chem. B. Huber

SGGA

8 MUNICH 86, POST BOX 860 820

MÖHLSTRASSE 22, CALL NUMBER 48 3921/22

<983921/22>

DECCA LIMITED

Decca House, 9 "Albert Embankment

London, S.E. 1, England

Sealed housing

The invention relates to a sealed housing for at least one visible display door device, in particular electrical or electronic equipment.

It is often necessary that electronic or electrical equipment be housed in watertight enclosures. These Necessity can arise, for example, with devices used on ships, especially the Navigation and control devices on the ship's bridge are installed.

The invention is based on the object of the construction of a sealed unit, in particular for electrical or electronic devices, improve.

According to the invention, the problem is met at the outset named tight housing solved by a one-sided

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open main part, one adapted to the open side Clamping plate, the clamping plate enforcing and screws fixing them to the main housing part, at least one between the clamping plate and the main housing part "is provided and seals these against each other in a watertight manner Seal and in that the clamping plate is at least partially transparent.

In the housing according to the invention, visible display devices, such as scales, measuring devices, etc., can be visibly attached without making the respective attachment watertight have to be. The clamping plate consists wholly or partly of a rigid, transparent material such as polymethyl methacrylate or polycarbonate.

At least one cladding part is preferably adapted and covered to a rope on the outside of the clamping plate the heads of at least some screws, the clothing part carrying at least two fastening pins on its underside, the fastening pins on one side Open dowels extend into it, the dowels are kept sealed in the clamping plate, the fastening pins and / or the dowels are made of an elastic material and the dowels capture the fastening pins in such a way that the trim part is held tightly to the surface of the clamping plate. In this construction, the clamping plate acts with the seal or the seals that the interior of the housing is sealed against the ingress of moisture is. The cladding part covers and protects the Screws and preferably forms a neat fairing that improves the appearance of the case. A special The advantage arises from the aforementioned construction in that it is possible to use at least one lamp, in particular an incandescent lamp for illuminating the transparent plate in a base or several open on one side

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sockets open on one side "under the said paneling part to accommodate the clamping plate of one Edge to light up and use it as a light guide. It is easily possible to seal lines entering the rear of the base towards the interior of the housing. With this construction, "at the acceptance of the cladding part immediately free access to the lamp or lamps, so that they can be removed or replaced can be removed without the clamping plate and thus the tightness of the housing canceled would have to be.

The outer garment can consist of a single, with openings provided plate. This can surround the outer edge of the clamping plate and cover the heads of all screws, that hold the clamp plate. Such a trim part can have an edge that is round / om the clamping plate rests tightly on the outer edge of the main housing part. The rim enhances the good looks of the case further, as it is the joint between the · clamping plate and the main housing part. If the transparent part of the clamping plate is illuminated from an edge, the is formed, for example, by a cutout in the clamping plate, the edge of the cladding part prevents that the light emerging from the outer edges of the clamping plate is visible because it is covered by the Ra.nd of the covering part.

The trim part and the main housing part are preferably made made of molded plastic, with the fastening pins of the trim part molded into it could be. With this choice of material, the casting can be done with great accuracy in terms of dimensions, so that it can be achieved that the cladding part is adapted very precisely to the outside of the clamping plate is. However, this adaptation is not part of the seal of the main housing part.

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One of the advantages of this construction is that ■ the good appearance of the housing compared to known housings is significantly improved that the clamping plate fastening Screws do not have to be visible and that there are no externally visible fasteners, to close the case.

It is easily possible to use more than one plate. Different types of devices have at least one further disk, for example information regarding the operation or use of the devices, connected to the clamping plate by means of fastening pins, which are held in dowels open on one side.

With many types of electrical or electronic devices, adjustable circuit elements must be accessible from the outside be. So the shafts of switches, potentiometers or other rotating adjustable circuit elements through the clamping plate using sealed Bearings are passed through.

The invention is explained in more detail below with reference to the drawings, in which an exemplary embodiment is shown is. Show it:

ig. 1 shows a longitudinal section through a housing with a electronic device provided therein}

Pig. 2 shows a plan view of the housing according to Pig. 1, with a trim part and the lower part the housing are removed;

Pig. 3 shows a section along the line B-B in Pig. 2; Pig. 4 shows a section along the line G-G in Pig, FIG. 2;

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! ig. 5 shows a section along the line D-D in FIG. 2;

! ig. 6 shows the fastening of the ye r clipping part as a cutout on the clamping plate j

! ig, 7 a side view of the in! Fig. 2 parts shown; ! ig, 8 a section along the line A-A in! ig. 2y

! ig. 9 is a rear view of the trim part of the housing according to! ig. 1.

In the drawings, a main housing part 10 is shown, which, apart from its upper spine, which is described in more detail below, is a closed structure. On top of the main housing part 10 is along the edge of which an edge part 10 is fixedly attached, which forms a watertight seal. This edge part 11 has a hat 12 which contains an elastic sealing ring 12 which rotates around the entire housing. On top A clamping plate 14, which is shown in more detail in FIG. 2, is fitted to the edge part 12. This clamp 14 extends uninterruptedly over the top of the Main housing part 10, if one disregards certain sealed openings. For example, sealed openings are 15 (! Ig. 8) for potentiometer shafts or similar 3 rotatable ones Actuators provided. The clamping plate 14 has holes 16 through which screws 17 are passed, which fasten the clamping plate 14 to the main housing part 10. Above the clamping plate 14 is a transparent polycarbonate plate 18, which has a ! Tut 19 has a resilient sealing tire 20 contains. This polycarbonate plate 18 is a large part of the clamping plate 14 directly, and the Screws 17 durohetzen also the polycarbonate plate 18, so that they this plate and the clamping plate 14 below

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Sealing on the edge part 11 of the main housing part 10 press on. This construction allows the upper part of the housing to be secured using known sealing methods made waterproof.

On top of the polycarbonate plate 18 is located a fairing (Figs. 1 and 6). In the illustrated lall, the cladding 25 extends completely around the outer one Edge of the polycarbonate plate 18 and covers the screws 17. The cladding 25 has a part 27 (Pig. 1), which runs across the plate 18 and, in the exemplary embodiment, separates two viewing openings from one another. Further the cladding 25 has an edge 35 which extends over the edges of the clamping plate 14 and the transparent plate 18 extends downward and rests on the upper surface of the edge part 11. The main housing part 10, the cladding part 11 and the cover 25 are made of one cast rigid plastic. In the casing 25 are six fastening pins 28 (Pig. 6) on its underside. poured in, held elastic by the open on one side, consisting of nylon, fastened in the clamping plate 14 dowels will. The dowels 26 can be of the type commercially available for attaching badges and signs and they can be easily connected to the clamp plate 14 in a watertight manner. Another cladding panel 29 (Fig. 3) is similarly using Fastening pins 31 held in dowels 32 are fastened.

A part of the polycarbonate plate 18 must be illuminated from one edge in the embodiment shown, for which purpose incandescent lamps 33 in sockets 30 open on one side (Pig. 5) are used, which are provided with blind plugs 34 made of an elastomeric material Material in the clamping plate 14 are sealed. The incandescent lamps 33 protrude upward from the sockets 30, to illuminate the polycarbonate plate 18 through the

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To achieve edges of openings in this. The panels 25, 29 ″ cover the incandescent lamps 33 and the blind plugs 34 so that these are not visible from the outside, although the incandescent lamps 33 provide the required lighting
of the polycarbonate plate 18 in order to visibly emphasize in this, for example, engraved markings. However, with this construction, access to the
Incandescent lamps 33 can be easily exposed in order to replace them by merely removing the covers 25, 29 without the sealed housing having to be opened.

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Claims (10)

Expectations η Sealed housing for at least one visible display device, in particular electrical or electronic devices, characterized by a main housing part (10) open on one side, a clamping plate (14, Ϊ8) adapted to the open side, the clamping plate (14, 18) penetrating and fastening screws (17) to the top housing part (10), at least one seal (12) provided between the clamping plate (14, 18) and the main housing part (10) and sealing these against each other in a watertight manner, as well as the fact that the clamping plate (14,18) consists at least partially of a rigid, transparent material. 2. Housing according to claim 1, characterized in that a transparent part (18) of the clamping plate (14, 18) by means of at least one lamp (33) from one edge is illuminated and that the lamp (33) is held in a sealed base (30) in the clamping plate (14, 18) is held. 3. Housing according to claim 2, characterized in that the lamp (33) by one on the outside of the clamping plate (14,18) opening opening is accessible through it without opening the housing. 4. Housing according to one of the preceding claims, characterized in that <£ 3 at least one cladding part (25, 29) part of the outside of the clamping plate (14, 18) is adapted and the heads of at least some screws (17) covered, 'that the cladding part (25,29) at least two fastening pins on its underside (28) carries that the fastening pins (28) in 109844/0988 dowels (26) open on one side extend into it, that the dowels (26) are kept sealed in the clamping plate (16, 18), that the fastening pins (28) and / or the dowels (26) "consist" of an elastic material and that the dowels (26) ^ grip the fastening pins (28) in such a way that the covering part (25,29) is held tightly on the surface of the clamping plate (14,18) . 5. Housing naoh claim 2 or 3 and claim 4 » characterized in that the base (30) holding the lamp (33) "close to the outside through the cladding part (25) (29) is covered. 6. Housing according to claim 4 or 5, characterized in that that the cladding part (25,29) has a continuous, with Perforated plate is, 7. Housing according to claim 6, characterized in that the cladding part (25) the outer edge of the clamping plate (14,18) and covers the heads of all screws (17). 8. Housing according to one of claims 4 to 7 »characterized in that that the cladding part (25) made of cast Made of plastic. 9. Housing according to one of the preceding claims, characterized in that the main housing part (1O) made of cast Made of plastic. 10. Housing according to claim 4 or claim 4 and one of the other claims, characterized in that the Paneling part (25) has a hand (35) around the clamping plate (14,18) tightly on the outer Edge of the main housing part (10) rests. 109844/0988 lee r side