DE1877052U - ARRANGEMENT FOR CONNECTING ELECTRICAL CIRCUIT ELEMENTS. - Google Patents

Description

325 ^ 27. 6.03 ° 573 / ^

Arrangement for connecting electrical circuit elements

The innovation relates to an arrangement for connecting electrical circuit elements, for example in electrical ones Office machines and the like.

With electrical office machines, for example typewriters it has hitherto been customary to connect the individual electrical circuit elements to one another via egg trees, However, such an arrangement has numerous disadvantages. Wire harnesses are expensive to manufacture and for assembly line production is unsuitable. In operation, they are easily exposed to damage, so can shocks their insulation will be chafed and wires will break. Defective lines are difficult to replace,

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Need devices such as electric typewriters also from time to time a gasoline bath cleaning, before which the cable harnesses are undesirably removed, to avoid damaging the insulation.

Replacing the cable harnesses with the known printed or etched circuits is also unsatisfactory, in particular if the cable routing is exposed to vibrations during operation, if high currents have to be carried or if the circuit elements to be connected are in

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lie on different levels, as is usually the case with machines of the type mentioned in Hegel. Because the pressed or etched cable routing laminated in a conventional manner onto insulating material panels tends to become detached with continued mechanical shocks, the maximum permissible currents is at least In the case of inexpensive embodiments, a relatively low limit is set and a direct one Connection of circuit elements lying in different levels is impossible, rather in such cases additional lines would be from the printed or etched circuit to the individual, not in the plane insert elements lying in the circuit "

The Heu®3 ?ung avoids these disadvantages with one arrangement for connecting electrical circuit elements, ζ. B. in electrical office machines and the like, which is characterized by a cut from a sheet metal sheet, On an insulating plate arranged cable run with angled, the connection of the electrical Circuit elements serving connection parts.

The sheet metal track can easily be chosen to be so strong that as required by the maximum current load of the arrangement, while suitable routing of the lines when cutting out, e.g. B. punching, occurring Keep material loss to a minimum. The to

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connection of the individual line elements serving Final parts can easily be made so long that even in different levels over or circuit elements located under the insulating plate directly and without additional interconnections required can be connected. Compared to round ladders, the resulting flat lines provide a better opportunity to dissipate heat on, and interference suppression means are only in lesser extent Dimensions required.

In an advantageous embodiment of the .ileuer.ung the Cable run between two Isolierstoffplatt.en be arranged and the connecting parts can through openings protrude into at least one of the insulating panels. The "encapsulated circuit" formed in this way is largely insensitive to mechanical loads.

The cable run can by means of the cable run and a sheet of insulating material penetrating through ments, pins or the like set on the insulating plate be.

The cable run can also expediently at least be glued on one of the insulating panels so that the individual lines are fixed immovably.

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They can also be stacked on top of each other (between two insulating panels Arranged in several levels, for example crossing lines in front of each other. see, between which electrical conductors reaching from one line level to the other establish connections.

Layers of cables lying one above the other can easily be Way by means of pins, rivets or the like be electrically connected through the cable runs and the insulating material plate or Slabs hindu griffin. Such elements also contribute to do this, the cable run on the assigned Define insulating material plate.

The "encapsulated circuit" created with the invention can be used as part "of the housing of the associated device, e.g. B »as the base plate of an electric typewriter, to be used. Here, the insulating panels can be provided with recesses that provide access to the rear the circuit elements lying on the insulating material and the like and / or allow the admission of cooling air, which makes service easier and cheaper .Cooling conditions are taken care of.

It is very advantageous to make the arrangement in such a way that

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that the cable run as interconnected Structure cut out in straight cuts on a sheet metal sheet, ζ. B * is punched out that the connection the electrical circuit elements serving connecting parts pulled out, the line between the insulating material plates arranged and only the cohesion connecting parts serving the cable run removed.

Further advantages, features and possible uses of the control emerge from the following description of an exemplary embodiment in connection with the accompanying drawings.

Is shows

Pig. 1 an exploded view of an arrangement after the innovation before assembly,

FIG. 2 shows the arrangement according to FIG. 1 after assembly,

3 shows the arrangement according to FIGS. 2 and 3 listening circuit diagram and

4 shows a sheet metal web with the line of lines to be cut out of it.

The arrangement mach Fig. Λ has two insulating plates 2, 3 on the insulating material of the intermediate · allrnit 5 designated line section comes to lie, from whose

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Flat connection parts 7 and 9 for the Hetz connection 10 (cf. the circuit diagram according to lig .. 3) connection parts 11, 13 for connecting a resistor 14, connecting parts 15, 17 for connecting a capacitor 18, Connection parts 19, 21, 23 for the connection of a hotor 24 ·, connection parts 25, 27 for the connection of a Transformer 28, connection parts 29, 31 for the connection circuit of a switch 32 and connection parts 33 »35 ' are withdrawn vertically upwards for the connection of a further switch 36.

The upper insulating plate 2 is provided with slots 38, through which see for the connection of the circuit elements provided connection parts can extend. To bridge the line 40 and electrical connection of the leads 41 and 42 leading to the connecting part 9 and connecting part 33 is a Line piece 44 is provided, which is also made of insulating material between the lower insulating plate 3 ^ nd existing cover plate 45 is arranged. Metallic Pins 47, 48, through the ends of the lines 41 and 42, through the insulating plate 3 and the ends of the line 44 extend through, provide a conductive connection between the lines 41, 42 and 44 ago. ,

The insulating plate 2 and 3 and the lower cover plate

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45 are interposed with spacers 50 or 52, the thickness of which is approximately equal to the thickness of the cable run 5 is held together by means of rivets 54-.

Fig. 2 shows the finished arrangement, "in which-also the through the insulating plate 2 upwardly protruding connecting parts 7> 9 etc. insulating sleeves 56 are pushed on, which are only used to connect the electrical Circuit elements, for example by clamping, screwing or soldering, suitable ends of the connecting parts set free.

It will be understood that the particular structure of the arrangement can be modified in numerous ways. While in the illustrated example all the connection parts serving to connect the circuit elements reach up through the insulating material plate 2, circuit elements can also be on both sides in different planes. the arrangement can be provided and corresponding connection parts also reach down through the insulating material plate 3 . More complicated, e.g. B. the cable run 5 intersecting, cable runs can be provided in a similar manner to the line piece 44th above or below the cable run 5 between the insulating plate © 2 or the insulating plate 3 and corresponding further insulating plates.

Claims (7)

325 * 6/27/65 ^ t? & m Schut ζ claims 1. Arrangement for connecting electrical switching elements, for example in office machines or the like, characterized in that all cable runs (5, 4-1, 42, etc.) of a line network are arranged in one plane as flat sheet metal strips on one side of an insulating plate (3), and that the line network, its connecting lines (7, 9 $ 11, 13 $ 15, 17 $ 19, 21, 23 $ etc.) for electrical switching elements (14, 18, 28, 24) and easily removable connectors (8, 12, 16, 20, 22 etc.) between individual lines (41, 42, 7 ₅ 9 $ 11 »13 etc.) are designed as a coherent structure with straight cut edges. 2. Arrangement according to claim 1, characterized in that all lines of the line network between two insulating material Plates (2, 3) are arranged, at least one of which is provided with openings (38) through which the rectangular Connecting cables (7, 9, 11, 13 | 33, 35S, etc.) angled out of the hitting plane protrude. 1 · 3. Device according to claims 1 and 2, characterized in that that all cables of the network with pins * rent or the like on the inside of one of the insulating plates (2, 3) are attached. O 5673 / 21a Gm, /} June 25, 1963 / (ι /. 4. Arrangement according to claims. 1-3, "dadureh marked, that all lines of the line network are at least one inside of one of the insulating plates (2, 3) are glued on. 5. Arrangement according to claims 1 -4, characterized in that that certain lines of the in a first level arranged line network are bridged by conductors (44), each on an additional insulating plate (45), which using spacers (52) by gluing or riveting to the corresponding Places the base plate (3) carrying the first line network are arranged. 6. Arrangement according to claim 5, characterized in that superimposed lines (41, 42, 44) of two Levels in a manner known per se by means of rivets reaching through the insulating material plate (47, 48) or the like are electrically connected to each other. 7. Arrangement according to claims 1-6, characterized in that that the insulating plates (2, 3) on line-free Places are provided with passages that provide access to the plates behind the insulating material (2, 3) Allow circuit elements (14, 18, 24, 28) and / or the admission of cooling air.