DE2049093A1 - Switch component - Google Patents

Description

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Patent attorneys Dipl.-Ing. F. Weickmann,

Dipl.-Ing. H. Weickmann, D1PL.-PHYS. Dr TCFincke ' Dipl.-Ing. F.A. ¥ eickmann, Dipl.-Chem. B. Huber

8 MUNICH 86, POST BOX 860 820

-MÖHLSTRASSE 22, NUMBER 48 39 21/22

<983921/22>

GRIGSBY-BARTOH, IUG., 3800 Industrial Drive, Rolling Meadows, Illinois, "V.St.Ao

Switch component

The invention relates generally to a reed relay with a switch in which reeds are made of a magnetic material are enclosed in a tube made of an insulating material and a coil surrounds the tube, which creates a magnetic field generated to operate the switch upon energization and de-energization of the coil. More precisely lies the invention in an arrangement including a tongue relay, due to the size and placement of conductors for use is suitable in boards with printed circuits

The invention is based on the object of creating a novel reed relay arrangement of the type described above, which is characterized by simplicity and low cost, but can be used for boards with printed Circuits with different properties with regard to the distance, shape and size of conductors expanded.

The invention also seeks a new way of assembling for the parts of a reed relay. HiI- "

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with an easily shaped and manipulable ladder frame, which can be easily adapted to different sizes, shapes and spacing of conductors and in cooperation with a mold limits the flow of a molding compound "for a surrounding housing.

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Further details of the invention can be found in the following detailed description with reference to the accompanying drawings out «Ee show:

Figoi is a perspective view of a finished tongue. relay arrangement with the characteristics of the invention; with some parts of the housing broken away;

Fig. 2 is a view from above of a blank for the lead frame the arrangement with some with the blank connected parts, the Göhäus and the later distant parts of the blank are drawn thin dashed lines;

Figures 3 and 4 are end and side views of the parts shown in Figure 2.

The reed relay assembly 10 shown in the drawings is particularly suitable for use with printed circuit boards and for interchangeability with other parts intended for such use. These boards are currently supplied with openings for receiving; provided by conductors in the form of pins, projecting from the housings of the electrical parts, ... the Brettohen to be included in the circuits on _o A standard embodiment of an integrated Schaltungsbaugrupjcie, ^ commonly known as 14-pin double-row component designated , _{; v} , is (14 pin duel in-line package), of course a small ^ .Rectangular housing with 14 pins, which are in two parallel rows of seven on opposite sides.

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housing are arranged. The arrangement shown in accordance with the invention also has a housing 11 of flat Rectangular 3? orm Biit 14 ladders in the shape of straight pins 12 on, which are in two parallel rows of ^ e seven Pins are attached to both sides of the housing, with the levels of the rows of pins at a distance outside the side edges of the case and perpendicular to the planes.

In the housing is a reed relay 13 with a switch 14 housed the two tongues 15 made of a magnetic material has »those in a hermetically sealed tube 16 made of an insulation material, for example glass, * - are closed. The tongues protrude self-supporting inward from the pipe ends and overlap in the pipe center The outer ends 17 of the tongues protrude outward from the pipe ends »Surrounds a coil 18 with many turns the glass tube of the tongue relay. It has an elongated cylindrical shape and on its outer sides at both ends Connections 19

According to the invention, the pins 12 are designed as one part of a frame 20 shaped »the in a new way to the reed relay 13 is arranged to accommodate the relay in the housing 11 and the connection of the relay parts to the selected To facilitate this, the frame has pins an elongated central opening 21 for receiving "the relay parts"

A plurality of elongated contacts 22 extend parallel to one another across the frame and the central opening. The contacts are arranged in two rows along either side of the central opening. The inner ends 23 and the central pieces 24 of the contacts are widened, whereas the outer end

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Pieces are narrowed and the pins 12 form · To the two flat bridges 29 are attached to both ends of the central opening, which extend transversely to the central opening » Each bridge is connected to the inner end of at least one of the contacts 22 located at the end of the opening.

The contacts 22 and the bridges 25 of the frame are formed as parts of a flat blank 30 which has a rectangular outer part with side strips 26 molded in one piece with the outer ends of the pins 12 and end strips 27 extending between the Side strips extend · Elongated webs 28 connect the middle pieces 24- of the contacts 22 to one another and to the end strips. The entire blank is made by a chemical milling process or some other suitable process, such as by punching out of a sheet of conductive material on the order of 0.25 mm (0.010 inch) thick _e The long webs create a conductive connection between adjacent contacts outside the case in the finished product, but they also form, together with the end strips, a dam between the dies of an intermediate mold for forming the case so that the material used for the case is confined so long as it is in the liquid state o the inner ends 23 of the contacts are in the housing ₀ To create an anchorage against pulling out the contacts, each inner end is provided with grooves 29 ,. To distinguish between the frame parts of the finished array of Figei of the non-used parts of the blank 30 in the final assembly, these unused blank parts in Figs _e 2, illustrated 3 and 4 together with the housing 11 in thin dashed lines

To the outer ends 17 of the tongues 15 of the switch 14 with

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to connect the bridges 25 of the frame 20, while the axis of the insulating tube 16 of the switch and the coil 18 is positioned in the plane of the frame, the outer end of each tongue is slightly against the on the insulation tube is offset (see at

31 in Figd and 4) β Next are the bridges from the Center of the contacts 22, with which they are connected, moved outwards in order to space them from the insulation tube. In the side strips 26 of the blank 30 there are holes

32 provided, intended for pens in the intermediate form

to bring the blank into the correct position λ , and another hole 33. in the side strip next to a contact is used to identify the order of the pins when the housing is formedo

In addition to the reed relay, the arrangement according to the invention is also suitable for other parts, for example as an integrated integrated circuit (not shown) connected to the relay Can be combined into a power amplifier or other circuitry, or as an electrostatic shield in the form of a copper pipe (not shown) that connects the Isola * tion tube 16 in the coil 18 surrounds »In the present case, where the reed switch 14 with integrated circuit piece * · | Before it can be used, a diode 34 is kept parallel to the coil in order to harmless the EMF. that occurs when the coil circuit is opened and that is larger than an integrated solenoid normally cope with

When assembling the improved relay assembly 10, first the tongue relay 13 is inserted into the elongated central opening 21 of the frame blank 30 and the outer ends 17 the tongues 15 are soldered to the bridges 25 of the frame or welded. Then the connections of the diode

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34 and the connections 19 of the coil 18 by solder or Welded connections attached to the inner ends 23 of two other contacts 22, in the present case these are the contacts lying next to the band contacts connected to the bridges relay in the housing 11 to connect each bridge 25 with one of the adjacent contacts 22 can be interrupted by cutting out the connector indicated at 35 (Fig. 2), so that the bridge only with one Contact stayed connected

P Well, the parts to be included in the housing 11 there are attached in finished form and assemble with them the frame blank 30 is finished, this part inserted between the two halves of an intermediate form »These halves cover the opposite flat sides of the middle pieces 24 of the contacts 22 near the outside of the Housing 11, which is indicated in Figo 2 thin dashed lines, and the webs 28 that connect the Mittelstüoke, and the middle area of the end strips 27 of the rectangular outer location of the hollow ring 30 “The webs, the middle pieces of the contacts and the end strips then act as a dam preventing the encapsulated mass from flowing out, for example

fe wise a suitable epoxy resin that is in the mold was introduced in the liquid state and then hardened there in a known manner in order to form the housing before the mold halves are separated again »

When the mass forming the housing has hardened the halves of the intermediate form are removed and the housing 11 remains with the outer parts of the frame blank 30, which are still connected to each other and lie in the same plane · They can also be found outside of the housing between this and the dam, which is in the shape of the footbridges

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28, the centers 24 of the contacts 22 and the end strips 27 of the blank, thin segments of hardened housing material or burrs. This material can be easily broken out and the blank is then brought into a trim shape in order to remove those parts that are not needed in the finished product End strips 26 and 27 of the rectangular outer portion of the blank and some or all of the webs 28 connecting the end contacts to the end strips and some of the contacts to one another. When the liquid parts of the frame blank 50 are removed, the housing 11 and the remaining frame parts including the contacts 22 and selected webs 28 are placed in an assembly jig, where the center pieces 24 of the contacts are bent sideways at right angles to the outer ones To arrange ends or pins 12 in spaced parallel planes * The reed relay arrangement 10 shown _{in Pig o 1 is thus finished}

The relay assembly 10 described above can check easily and without difficulty, with variations in the trapped in the housing parts, which cooperate with the reed relay which form the arrangement can be further easily like in sockets on control boards barren on cards or boards with printed circuits stuck and is easily interchangeable with other devices such as integrated post assemblies used with such boards. Moreover, the arrangement is readily feasible with different patterns of connector pins 12, with different pin sizes for different pin hole sizes, and with different internal connections of the parts to the different connector pins

In the context of the invention, various modifications of the shown embodiment possible

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Claims (1)

Expectations ί 1 ο Switch component with an elongated, thin, flat one Frame, in the longitudinal direction of which an elongated central opening extends, and with several elongated ones Contacts that are transverse to the frame and the central opening parallel to each other and in two rows along both Sides of the opening are arranged in such a way that their inner ends come to lie next to the central opening, also with a scarf lying in the middle opening " W ter, which has outer, outwardly protruding conductors electrically connected to each one of the contacts, further comprising an enclosing housing of an insulating material which surrounds the switch and the inner ends of the contacts, the central pieces and the elongated outer ends of the contacts lie outside the insulating housing and the middle pieces are bent over laterally in such a way that the outer ends lie in parallel planes perpendicular to the plane of the frame, characterized in that the frame (20) is formed from a flat blank, which in Longitudinal webs (28) which connect the middle pieces (24) of the contacts (22) and end strips (27) which die.in ™ the rows at the end. Connect contacts and together with the webs (28) and .den middle pieces (24) of the Contacts in a mold form a dam for the housing forming material, the end strips and some of the webs are removed from the final product to the electrical Connections between some side by side « contacts lying outside the housing to under «breoheno 2 · So holder component according to claim 1, characterized by an insulating body (16) which surrounds the switch (14) and which is enclosed in the insulating housing (11) is" 10 9818/132 Iv '■ JIm, .HIjP ΨΡ 4, Ιΐ !! «ρ. ! ■ '* ■' ■■■ '■ ' ^Μ ! ■■■ '■■ ■' ^{1 |} - '* ■! ■' ■■ - ¹ ■ " ■ <■■ <■ ' ■■' ■■ ■ ■ ■ - ■■. ,,, ..,",. ,, _Ρ ρ ,,.; ,,,.. ,,,,, ... ,,,, " 2049083 Switch component according to Claim 1 or 2, characterized by an element (18) generating a magnetic field in the vicinity of the switch (14) which is provided with connections (19) that is separate with others, not with the scarf * « the connected contacts are connected Switch component according to Claim 3, characterized in that the housing (11) is the element generating a magnetic field (18) encloses o Switch component according to claim 3 or 4 »characterized in that the El which generates a magnetic field is a coil (18) surrounding the switch (14) to 6e switch component according to Claim 2 or one of the following claims, characterized by two bridges (25) which extend transversely at both ends of the central opening of the frame and lie within the housing (11) and each of which has the inner end (23). is connected by at least one of the contacts closest to the relevant end of the central opening, the outer conductors (17) of the base holder, which protrude at both ends of the insulating body (16), being electrically connected to the bridges and the other contacts, the g are not connected to the bridges, have no connection with the connected contacts © 109818/1321 Blank page