FI60327B - MEDICAL STORAGE CONSTRUCTION CONSTRUCTION CONSTRUCTION AND ELECTRICAL CONSTRUCTION GROUP - Google Patents

Description

l1Yl '"| ADVERTISEMENT -", _ «t M <"> UTLAecN1NesjK „IFT 60327 • C (45) Patent cyllmc tty 10 12 17 31 iFatent T? 1delat V v / (51) Kv.iic.3 / ir * t .ci.3 H 02 B 1/04 f H 05 K 7/14 FINLAND — FINLAND (21) P> t «nttIKak * mui - PatenUnsBknlng 761913 (22) Htktmlspllvl - AfMMcnlngtdag 01.07 * 76 ^ * (23) AlkupUvt —GHtlfhatadag 01.07.76 (41) Interpreters JulklMktl - Blhrlt offantllg 01.01.77

Patent · and Registration Board „, m- * .. .__. . _. , (44) NihUvUulpenon and moon (.date of publication -

Patent- och registerstyrelsen '' ΑμΜο »« ia «d e« h «UkrtfMn pubiko 31.08.8l (32) (33) (31) Privilege requested —Begird prtorKet 07.07.75

Austria-Austria (AT) 5224/75 (71) Inventory Aktiengesellschaft, CH-6052 Hergisvil NW, Switzerland-Switzerland (CH) (72) Jaro Hlinovsky, Ebikon, Switzerland-Switzerland (CH) (7M Leitzinger Oy (5M Locking device with lock) The present invention relates to a locking device for an electrical assembly for a support rail, which is formed by a printed circuit with electrical components, wherein at least one of the printed components is provided with a protective structure, the at least one of which is equipped with a printed circuit, which is removable only by pivoting at least one second side wall over the retaining cam in the longitudinal direction of the support rail.

It is known to attach to support rails, for example standard rails. or electrical components of different profiles for different types of rails, such as terminal clamps, fuse elements, relays, etc. Terminal clamps with grooves through which they can be inserted into the support rail are clamped between two terminals which can also be inserted into the support rail via the grooves. In this case, the end clamps are tightened to the support rail with screws. In contrast, for attaching fuse elements or relays, it is usually common to use other types of hangers, which are also tightened to the support rail with screws. In plug-in fuses or other small plug-in electrical appliances, their respective sockets are often attached to the support rail in the same way.

To prevent contact with live parts and to avoid contamination and damage, electrical installations are most often covered.

2 60327

If the support rail with its electrical structure is then fitted under the protection device, then the electrical, contactable live parts do not have to be covered. If, on the other hand, the support rail is not shielded but is obviously accessible, then the fuses, relays or other small electrical devices on it must be shielded. In this case, the relevant regulations require that, from an operating voltage of 50 volts, the protective devices can only be removed with a tool, which is usually to be understood as removing the screws with a screwdriver.

In order to protect the sensitive parts of electrical components, for example the contacts of electrical relays, it is common to equip them with protective shields which can be removed without a tool, especially with an operating voltage of less than 50 volts, without tools to inspect and maintain sensitive parts, especially contacts. In a known embodiment, for example, the elastic shield of the relay has two opposite inner sides with projections which are retained when mounted in the corresponding recesses in the runco of the relay. The cam stop is designed so that it is possible to remove the hood without using a tool.

The object of the present invention is to fasten a printed connection provided with at least one electrical structure of the above-mentioned quality, covered with a protective cover, a support rail, which fastening simultaneously makes it possible to secure the protective hood at operating voltages above 50 volts so that it can be removed without using any tools.

According to the invention, this object is achieved in that the printed connection of the electrical structure group is mounted in the grooves of two end terminals known per se, which are tightened by means of support rail screws on both sides of the protective dome, which are intended to prevent the side walls from turning.

An embodiment of the invention will be explained below with reference to the accompanying drawing, in which FIG. 1 shows a vertical projection of the fastening of the electrical assembly to the support rail, fig. 2 is a side view of the mounting of the electrical assembly shown in FIG. 3 shows a top view of the fastening according to FIG.

60327

In Figures 1, 2 and 3, reference numeral 1 denotes an electrical assembly with a rectangular printed circuit 2. Terminal clamps 3, 4 are mounted at the ends of the printed circuit 2, between which a relay 5 is arranged. Terminal clamps 3, 4 and relay 5 are soldered to a known with a printed connection and connected to each other via printed wiring harnesses.

For the protection of the contacts and possibly for the safety of the operator, the relay 5 is covered with a rectangular, detachable cover G seen from above. The inner sides of the two opposite side walls 6.1, 6.2 of the elastic plastic 6 The cam attachment is made in such a way that the protective cap 6 can be removed without using any tool by turning the side walls 6.1, 6.2 over the retaining cams 6.3. A rectangular recess 2.1, 2.2 is made in each longitudinal side of the printed connection 2. These recesses are located exactly opposite to each other. Both recesses 2.1, 2.2 are at the longitudinal sides of the cover 6, the distance between them being smaller than the narrow side of the cover 6.

Reference numeral 7 denotes a support rail with a commercial profile for fastening the structural group 1, which is, for example, metal. Reference numerals 8 and 9 denote two similar commercial end faces having a guide groove 10, 11 at the bottom, on the side of the axis of symmetry and on both sides. These parallel guide grooves are gripped by two branches 7.1, 7.2 of the support rail 7, as a result of which the end pins 8, 9 in the longitudinal direction. In the upper part of the end pins 8, 9, projecting from the support rail 7, there are grooves 12, 13 on each side running parallel to the support rail. The end clamps 8, 9 are provided with screws 14 running perpendicular to the guide grooves 10, 11, by means of which the end clamps can be tightened with the support rail 7.

By pushing the end clamps 8, 9 together and tightening the coupling 2 pressed onto the support rail 7, the coupling 2 is fixed in shape both at a distance from and transversely to the support rail. Since the distance between the recesses 2.1, 2.2 of the printed connection 2 is smaller than the narrow side of the protective cover 6, the support surfaces 8.1, 9.1 of the end pins 8, 9 are pressed against the side walls 8.1, 6.2 located opposite the longitudinal sides 4 60327 of the protective cover 6. To remove the protective cover F, of the relay 5, it is first necessary to remove the fastening of at least the second end clamp 8, 9 by means of a screwdriver.

The advantage of this type of fastening is that it allows simple, inexpensive devices to fasten one or more electrical assemblies with a printed connection quickly and arbitrarily to the support rail and at the same time secure the covers on the printed connection so that they can be removed without the use of any tool.

In addition, one advantage is that the electrical assemblies and the associated or separate terminal pins can be arranged on the support rail in an arbitrary order.

Claims (2)

5 60327 A locking fastening device for a group of electrical assemblies fitted to a support rail, comprising a printed circuit with electrical members, the at least one member having a protective cap which can be removed only by pivoting at least one side wall over the retaining cam in the longitudinal direction of the support member, characterized in that the printed connection (2) of the electrical assembly (1) is mounted on two end caps known per se, tightened with screws (IM) on both sides of the protective hood (6), intended to prevent the side walls (6.1, 6.2) from turning, (8, 9) in the urine (12, 13). Locking device according to Claim 1, characterized in that the two opposite sides of the printed connection (2) running transversely to the support rail (7) have rectangular recesses (2.1, 2.2) whose edges running parallel to the support rail (7) are guided into the grooves (12, 13) of the end pins (8, 9) running parallel to the support rail (7), the distance between the rectangular recesses (2.1, 2.2) of the printed connection (2) being smaller than the electrical structure arranged in the middle of the printed connection (2) ( 5) the length of the side running parallel to the support rail (7) of the covering cover (6), so that when the end clamps (8, 9) are pushed together and tightened on the support rails (7), the cover (6) can be pressed into the retained position.