DE2714450C2 - Light signal transmitter, preferably for visual display of automatic fire detectors - Google Patents

Description

which the signal light 2 is arranged for assembly the circuit board 9 so in the lower housing part 5 according to FIG. 4 insert that this crosspiece 12 in the two Slits 13 come to rest in the version 7. Further latching means, not shown, then hold the circuit board 9 in the lower housing part 5 in their correct position.

On both sides of the circuit board 9 there are two bores 14 near the edge of the circuit board and close to one another provided, whereby three bottlenecks 15, 16 arise. An electrical conductor track 17 is guided above these on the underside of the circuit board 9, as indicated by dashed lines. When pulling out the constriction 16 between the two bores 14 are because of the brittleness of the material used for the circuit board 9, namely that under its trade name known epoxy hard paper, also the constrictions 15 blown out, so that in one operation three conductor tracks 17 can be interrupted. This is on the right side of the circuit board 9 through the separation 18 indicated. The socket 7 is split by the two slots 13 and therefore the protective cap 1 could slip out of the thread. The stiffening webs 8 give as an abutment Version 7 greater hold.

List of reference symbols:

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1 translucent protective cap 2 Signal light 3 Round flange 4th Housing cover 5 Housing base 6th drilling 7th Version 8th Stiffening bar 9 Circuit board 10 electrical component 11th Recess 12th Crossbar 13th slot 14th drilling 15.16 Bottleneck 17th Track 18th Separation 1 sheet of drawings

Claims (5)

1 2 disadvantageous that the lamp and the locking piece of patent claims: the rear side must be introduced into the housing wall. With this arrangement it is not possible to use im 1. Light signal transmitter, preferably for the optical lower part of the housing, a circuit board with a display on it in the case of automatic fire alarms, the appropriate signal light must be provided and with a single housing in the form of a cover half and a chen screw connection the housing cover on dsm To fasten the lower housing part by a in the housing lower housing lower part. part, z. The invention is based on the object of providing a conclusively detachable and attachable translucent light signal transmitter of the type mentioned above to the effect of designing a protective cap for the signal light that the properties listed above are, characterized in that the th be created, in particular a Konse lower housing part (5) contains a socket (J) , which is to be achieved for the constant separation between the housing parts and the positive fastening of the protective cap (1) electrical components,
According to the invention, in such a light-emitting device, this is made up of two mirror-inverted frame halves, preferably two signal generators with the characteristic features of the curved segments, between which claim 1 is solved - Signal generator, the housing cover and the signal light (2) subordinate to the housing can be introduced. part are joined together by a screw connection 2. Light signal transmitter according to claim!, Held thereby. The lower part of the housing has a facet, that the cover half (4) of the housing 20 solution for the positive fastening of the protective cap (4,5) abutment z. B. in the form of stiffening from two mirror images symmetrically opposite each other (8) for the two segments of the socket (7) existing socket halves, which preferably consist of curved segments exist. Between these is a 3. Light signal transmitter according to claim 1, characterized in that it is arranged on a transverse web of a printed circuit board indicates that the circuit board (9) a transverse 25 signal light can be introduced. Bar (12) delimiting recess (11) for through- Such a frame design has the advantage breakage of a socket half has that on the one hand in the lower part of the housing with a circuit board 4. Light signal generator according to claim 1, 2 or 3, that a signal light can be arranged and that characterized in that all its electrical on the other hand with only one designed as a screw Components (10) on the single circuit board (9) 30 transparent protective cap of the housing cover on the are arranged. Housing lower part can be fixed positively. 5. Light signal generator according to one or more For a further embodiment of the invention, the or preceding claims, characterized in that · the cover half of the housing abutment, e.g. B. in shape shows that the circuit board (9) has two closely spaced stiffening webs for the two segments of the which and close to an edge holes 35 have mount. It is also advantageous that the line (14) has and that on the terplatte thus formed a recess delimiting the transverse web Narrow points (15, 16) have three separable conductor tracks for inserting a socket half through. White (17) are led. tcrhin the circuit board can be tight together and two have holes located close to one edge, «O through the constrictions they create, three separable Conductor tracks can be performed. Further ^ details of the invention emerge from The invention relates to a light signal- one embodiment shown in the drawing about, preferably for visual display with automatic play. It shows graphically in an exploded view: gen fire alarms, according to the preamble of the patent 45 F i g. 1 the translucent protective cap, claim 1. F i g. 2 the housing cover, Such signal transmitters should be simple and inexpensive. 3 the circuit board and be manufactured and therefore as little screwing as possible. 4 the lower part of the housing, have connections. They should also consist of a few The translucent protective cap 1 according to FIG. 1 Individual parts, which is used without finishing by 50 to protect de ^r signal lamp 2. The cap 1 has Automats can be produced. On site they should open a round flange 3 for the bottom, through which they open the housing. different tensions and different fire cover 4 presses against its lower part 5 when it is through reporting systems can be used, but the hole 6 should be screwed into the socket 7. Of the only small round flange 3, which can be made with simple tools, is knurled on the inside to refract light Assembly work is required. 55 while it is smooth on the outside to prevent unauthorized opening of the From DE-PS 9 40 602, such a light signal generator is to be made more difficult. Known signal generator for visual display. There is a housing cover 4 according to FIG. 2 hermetically closes the light with a lower housing part 5 in a transparent housing, when both parts are pressed together by the protective cap 1, preferably for signaling purposes. On the described. The well-known signal light has two ge 60 underside of the housing cover 4, like the partial housing halves, namely a lamp housing in the form shows, two stiffening webs 8 are provided, which actually rotated a transparent hood and a cylinder-shaped by 90 °, to stiffen the socket jr ; \ - Housing wall and a lower housing part in the form of a 7 are used, as will be explained later.
JV; Closure piece that can be screwed into the housing wall, on the bearing plate 9 according to FIG. 3, the signal-If are connected to the lamp inside the housing and contact h ^r> light 2, and any additional electrical components (Ji elements are secured to the housing wall. The DA 10, such as resistors, Richtleitcr and terminals, Wj by formed replaced serves only to accommodate the mounted, which were only indicated schematically here.! '} Lamp and the contact elements