EP0938119A1 - Relay - Google Patents

Abstract

The relay is constructed with a base unit and a cover (19). Within the housing are a pair of relay contact chambers that are separated by dividing walls (31). The leaf contact carriers (35) are installed in the housing by having the lower ends fitted into slots (33) in the housing. The actuator assembly (71) is mounted in line and there is flap armature (67) for contact displacement

Description

The present invention relates to a relay at least two contact units, which by a insulating septum are separated, each Contact unit has at least two contact members, from at least one each parallel to the partition is aligned elongated contact spring, the contact end to make or break a contact parallel to Partition is movable, with an actuator for Moving the contact ends and with plug connections for Connect the relay, which plug connections in are pluggable perpendicular to the partition.

Such relays are lying on a circuit board stuck because the plug connections are in the direction of the smallest Dimension of the relay are pluggable. There is a demand for lying relays, because relays for the most part belong, which are arranged on boards. So now Boards should be arranged as closely as possible , it is desirable for relays to be as low as possible Have overall height, i.e. as little of the board as possible stand out. Relays are also preferred, which if possible take up little space.

The usual way to design a horizontal relay consists of the extension of the contact springs protruding plug connections of a standing Angle the relay outside the housing by 90 degrees, whereby the plug connections of the contact units on one side the partition led around the other plug connections are. This arrangement requires additional space in the The order of magnitude of the distances between the plug connections. Another disadvantage of this is that only one side of the relay Connection between the board in which the relay is plugged in, and the relay can be manufactured. At Forces acting on the relay are subject to vibrations a correspondingly large lever.

It is therefore an object of the invention a relay to create the genus mentioned above, which if possible is small. It should also set the standards for air and Creepage distances for a safe separation between the Contact units, or between the live parts different potentials. The relay should also can be used where a so-called Safety extra-low voltage isolated from the mains voltage potential must become.

According to the invention this is achieved in that the Plug connections of the contact links on one side of the Partition at the end opposite the contact end the contact springs are arranged and the plug connections of the Contact members on the other side of the partition to the Contact end towards the former plug connections offset, preferably about half the length of the Contact springs are arranged, and in the direction of movement Contact springs arranged at a distance from the contact springs and / or that the connecting parts of the Contact members on one side of the partition to the associated plug connections on the other side of the Partition are passed through the partition.

By passing the connecting parts through the The partition will bypass the partition and the Occupying the corresponding additional space avoided. The plug-in connections thus fall through the Relays took up space anyway. By moving the Plug connections on this side of the partition towards parallel to the contact springs opposite the plug connections beyond the septum is a gap between the Plug connections created, which the minimum requirements at creep and air distances with ease. In addition is the connection between the relay and the board, thanks the relatively large distance between the plug connections, less prone to shocks. On the plug connections smaller bending forces act because they are less eccentric are arranged. In addition, they fall towards the middle offset plug connections in the anyway by the relay occupied space, which means that no additional space is required for the plug connection occurs.

An embodiment of a relay with both is preferred Features, since its plug connections within the by the Length of the contact springs determined dimensions of the relay fall and at the same time the distances between the Plug connections can be dimensioned so easily can that the distances of 10 mm for safe separation are adhered to.

To a conflict between through the partition passed through connecting parts and the electrical conductive parts on the other side of the partition Avoid are those that pass through the partition Connecting parts from the contact links on one side the partition to the associated plug connections on the on the other side of the partition between those on the other Side of the partition arranged contact members and / or the electrically conductive associated with them Parts passed through.

If the contact units on this side and beyond the This can result in a diaphragm facing each other exactly achieved that the connecting parts are shaped as Z. are and have such an offset that they are on the Plug-in connection side of the partition exactly between the pass through electrically conductive parts. So that Connecting part in the support part or through the partition can be pushed through and in a clamping groove of is held here, it is preferred that the contact unit on one side of the partition towards the contact unit on the other side of the Partition parallel to the partition and approximately perpendicular to the length of the contact springs is arranged offset and that Connection part is flat. At this move Arrangement of the contact units can be very simple designed connecting parts in the plane of Contact springs can be passed through the partition to between the electrically conductive parts of the to reach through the plug connection-side contact units.

The plug-in connections, which are used for the Contacting opposite end of the contact springs are arranged passed through the partition. Also the reverse is possible, namely that through the Partitions guided connecting parts on about one perpendicular to the center plane of the contact springs the partition, between the plug connection side electrically conductive parts through and finally through the housing is guided and the others, plug connection side plug connections directly at the Contacting opposite end of the contact spring only exit through the housing wall. However, since the Contact springs are movable between the Contact springs with increasing distance from their that movable contact end opposite fixed end less space for the passage and isolation of the Connection parts available. That's why it's compact Construction the claimed implementation of the connecting parts preferred near the fixed end.

If the relay housing consists of a cover and a Bottom part, which is the contact elements Enclose the partition and the actuator, the Bottom of the bottom part is arranged parallel to the partition and has openings for the plug connections, then advantageous those that pass through the partition Connecting parts on the bottom of the partition each with a collar connected to the partition and one with collar connected to the bottom part at least partially surround. A collar around the is expedient arranged around the other so that the creepage distances and clearances between those with the contact links on one side connected parts and with the contact members of the parts connected to the other side at least one specific, have a value set by the standards. The inner one Collar is expediently arranged on the same part to which the plug-in contact units are attached are. If the plug-in contact units on Bottom part are attached, the inner collar is advantageous on the bottom part, but if all contact units on the Partition are arranged on the partition.

Are the contact springs engaged with a slide or comb, which are moved with the actuator can, the slide advantageously has two through a slot separate elongated, arranged in the same plane Tiles on a jetty. These plates are engaged with the extreme ends of the contact springs and the web in engagement with the actuator. The tiles can Slots for all variants of the switching arrangements Have contact units when the to be moved Contact springs are a little longer than the others Contact springs. The partition is perpendicular to the platelets arranged in the slot between these, and one in Cross-section T-shaped cover is with the transverse surface parallel to the plates between these and the housing arranged and inserted with a comb perpendicular to the transverse surface in a groove in the septum so that the platelets in the held with the contact springs engaging position are and also the air and creepage distance between the through the partition separate contact units at least one has a certain measure. This enables a very simple one Assembly of the contact units on the partition. The Contact springs are also with the greatest possible leverage guided, which requires small forces to the springs to move.

Is the actuator with an electromagnet a coil formed around a core, so is advantageous at the two ends of the coil, one perpendicular to the partition pluggable plug connection arranged for the coil. Thereby these plug connections are as far apart as possible, so that the relay on a wide, against vibration resistant base can be connected to a circuit board is.

The contact units on both sides are advantageous the partition on the partition or on one too Carrier part forming the partition. This can do that Part of the interior of the relay with high precision can be put together, which is only with the Housing needs to be protected. This is all the more true to when the actuator in this support member is insertable.

Is the actuator with an electromagnet Tilt anchor formed, the core of which is approximately parallel to the Contact springs is aligned, the tilt axis is advantageous of the toggle anchor arranged at that pole that the Movable contact ends of the contact spring near pole opposite. This means that, at most, it is above one Slider, the contact springs moving lever of the tilt anchor the length of the magnetic core is available. Therefore, the lever pulled or released by the core Kippankers have a short path, for which a smaller one Magnetic force is needed. Therefore, the magnet can be smaller be designed. It also becomes the appropriate one Dimension of the relay housing only by the length of the Contact springs determined. The coil and the contact springs moving levers of the tilt anchor do not need any additional Expansion of the housing over this by the contact springs conditional dimension.

Fig. 1

eine teilweise geschnittene Darstellung einer Relaisaufsicht,

Fig. 2

eine Relaisuntersicht, bei welcher der Boden abgeschnitten ist,

Fig. 3

eine Ansicht des Bodens von Innen,

Fig. 4

einen Querschnitt durch den Boden entlang der Linie I-I in Figur 3,

Fig. 5

einen Querschnitt durch das Relais entlang der Linie II-II in Figur 1 und 2,

Fig. 6

einen Querschnitt durch das Relais entlang der Linie III-III in Figur 1 und 2,

Fig. 7

einen Querschnitt durch ein Relais, bei welchem kein Verbindungsteil durch die Scheidewand hindurchgeführt ist,

Fig. 8

eine Längsschnitt durch ein Relais, bei welchem die durch die Scheidewand hindurchgeführten Verbindungsteile Z-förmig sind,

Fig. 9

ein Relais, bei welchem die Verbindungsteile zu den zur Mitte hin versetzten Steckanschlüsse durch die Scheidewand geführt sind.

An exemplary embodiment of the invention is described below with reference to the figures. It shows:

Fig. 1

a partially sectioned illustration of a relay supervision,

Fig. 2

a relay underside with the bottom cut off,

Fig. 3

a view of the floor from the inside,

Fig. 4

3 shows a cross section through the floor along the line II in FIG. 3,

Fig. 5

2 shows a cross section through the relay along the line II-II in FIGS. 1 and 2,

Fig. 6

2 shows a cross section through the relay along the line III-III in FIGS. 1 and 2,

Fig. 7

a cross section through a relay, in which no connecting part is passed through the partition,

Fig. 8

2 shows a longitudinal section through a relay in which the connecting parts which are passed through the partition are Z-shaped,

Fig. 9

a relay in which the connecting parts to the plug connections offset towards the center are led through the partition.

Figures 1 to 5 relate to a preferred one Embodiment 11. The relay 11 is as follows first using the two figures 1 and 2 together described. Figure 1 shows a relay 11 in supervision. The Plug connections are covered as they are on the back are arranged. The relay 11 is accordingly in Plug-in viewing direction. From the bottom, i.e. of the opposite direction or that in Figure 1 not visible back with the plug connections, see that Relay 11 as shown in Figure 2. However, that is Bottom not shown in Figure 2, or is a section shown between the bottom and the support member 13. With parts connected to the bottom part and the plug connections, which are all led through the floor shown cut.

The relay consists of a carrier part 13 and the same fastened parts and a housing from the bottom part 17 and Cover 19. The housing also includes all other parts Except for the plug connections 21, 22, 23 of the relay. The Relay has the shape of a right-angled hexagon. Of the Cover 19 encloses the comprehensive pages 25, 26, 27, 28 and the lid side 29 (Fig. 5 and 6). The bottom part 17 covers the Bottom side 30 (Fig. 5 and 6) and engages on the sides 26,27,28 under the lid 19. In this overlap area lid 19 and bottom part 17 are latched together.

The carrier part 13 forms a central partition 31 parallel to bottom side 30 and lid side 29. Vertical to it are near the side 26 on both sides of the partition 31 Clamping grooves 33 and 34 formed in which contact springs 35.35 ', 37.37', 39.39 'are inserted. Two each Contact springs 35/35 ', 37/37' and 39/39 'together form each a contact unit. The clamping grooves 33 are opposite to the Clamping grooves 34 about half a distance between the one Contact unit forming contact springs offset. So is from the side 25 a greater distance from the contact spring 35 ' than to the contact spring 37 '. The distances between the Contact springs 35,35 'are the cover side of the partition 31 however equal to the corresponding distances between the Contact springs 37 ', 37, respectively. 39.39 'at the bottom of the Partition 31. The contact springs are 35.35 ', 37.37', 39.39 ' each riveted to a connecting part 41, 43 which leads to a Plug connector 21,22 is formed.

The connecting parts 41 are perpendicular to the Contact springs 35,35 'through the partition 31 and between the contact springs 37 ', 37,39,39' or between the Contact spring 39 'and the actuator 44 passed through. So that the distances between the electrically conductive parts of the contact units 35/35 ', 37/37', 39/39 'are sufficiently large and the construction can still be as compact as possible the crawl and airways lengthened labyrinthine. To the For this purpose, connecting parts 41 is one with the Partition 31 connected collar 45 on the carrier part 13 formed, which in turn with one on the bottom part 17th trained collar 47, 47 'is enclosed. The creep and By air, for example, from the spring 37 'to the neighboring one The plug connection 21 runs from the cover 19 to the partition 31 and around the collar 47 back to the cover 19.

The connecting parts 43 are in a flat Z line turned. The distance between the two ends of the Connection part 43 corresponds transversely to the contact spring (height the Z line) the offset of the contact units 35/35 ' compared to the contact units 37/37 'or 39/39'. Thereby the plug connection 22 reaches approximately in the middle between the Contact springs 37 and 37 'or 39 and 39'. The distance parallel between the two ends of the connecting part 43 to the contact springs (width of the Z line) corresponds approximately to that Half the length of the contact springs 35.35 ', 37.37', 39.39 '.

Through these offsets in the connecting parts 43 the plug connection 22 between the contact springs 37 and 39 closer to the contact spring 39 than the distance requirements for a so-called safe separation prescribing it. So that Creepage distances and clearances, however, the desired length reach is between these electrically conductive parts 43, 22 and 39 on the bottom part 17 and on the partition 31 each a partition 51 and 53 and a surrounding wall 55 around Connection part 43 formed. The surrounding wall 55, which is formed at each connecting part 43 gives this also hold and forms part of the partition 57 between the two contact springs of a contact element. The surrounding wall 55 together with the part 52 ″ forms the Clamping groove 34.

The contact springs guided by slide arms 59 35,37,39 differ from the contact springs 35 ', 37', 39 ' by a protruding above the contact head 61 Spring part 63, with which they are in a slot in one Insert slide arm 59. Two slide arms 59 form together with a web 65 a slide. The partition 31 is in a slot between the slide arms 59. Of the Web 65 has a recess into which the Actuating lever 67 of the rocker arm 69 of the electromagnet 44 intervenes.

In operation, a flowing in the coil 71 A magnetic field is built up in core 73. This will make the Tilt anchor 69 attracted against the core 73, whereby the Actuating lever 67 is tilted away from the coil 71 and the Slider moves 59.65. The contact springs 35,37,39, which with a spring part protruding beyond the contact head 61 63 in the slide 59,65, with the slide arms 59 at its contact end against the contact springs 35 ', 37' respectively moved away from the contact spring 39 '. Thereby three contacts are closed and one contact is opened. If the current flow in the coil is interrupted, the Tipping anchor under the influence of spring force from the Contact springs 35,37,39 back and the contacts 35/35 ', and 37/37 'are opened while contact 39/39' is closed becomes.

Figures 3 and 4 show a view of the bottom part 17 of Inside and a section along the line I-I. From the The arrangement of the plug connections can be seen. On the left are the two openings 75 for the plug connections 23 of the electromagnet 44. On the center line M are each side by side the two openings 77 for the plug connections 22 of the ground contact units 37/37 'and 39/39'. At the the lower edge, the openings 79 are also in pairs arranged through which the connector pairs 21 of contact units 35/35 'which are far from the ground can be pushed through. The collar 47 for extending the creepage distances and clearances have a height which is between the height of the relay the bottom 17 'of the bottom part 17 and the partition 31 correspond. On the walls 81 rising from the floor 17 ' the sides 28 and 26 projecting lugs 83 are formed, which snap into recesses in the cover 19.

Figures 5 and 6 show two perpendicular to each other cuts through the relay, namely FIG. 5 along the line II-II and Figure 6 along the line III-III in FIGS. 1 and 2. In FIG. 5, the electromagnet 44 is on the left with core 73 and coil 71 shown in dashed lines. Obviously is also that the electromagnet 44 with the yoke 85 in one Groove is in the support member 13. The whole operating part 44 can from page 28 (see Figures 1,2,6) in the Carrier part 13 are inserted. It is also evident that the contact units 35,35 'which are arranged directly under the transparent cover 19, arranged opposite the bottom of the partition Contact units 37/37 'and 39/39' by about half the Distance between two contact springs of a contact unit are offset. Next are the labyrinthine ones Path extensions by means of the partitions 53 and 51 and by means of the collar 45, 47 and the clamping grooves 34 forming Parts 52 '' and 55 shown.

Figure 6 shows the same path extension through the two interlocking collars 45 and 47 in the Plug connections 21 in a simplified cross section. A inner collar 45 is arranged on the carrier part 13, a outer collar 47 on the bottom part 17. The air and Creepage distance extends from the floor 17 'to the partition 31 and from there back towards the ground to the electric conductive part 39. Added to this is the wall thickness of the Collar 45.47 and the distance between collar 47 and electrically conductive part 39. In addition, in FIG labyrinthine path extension between the one with the slide 59.65 movable contact ends around the slide-side edge the partition 31 shown around. With a cover 87 the slide 59, 65 engages with the contact springs 35,37,39 held. A comb arranged on the cover 87 89 is in a groove formed in the partition 31 91.

Figures 7 to 9 show three variants of the above described embodiment, the corresponding Share in spite of different construction or shape are denoted by the same digits. Figure 7 shows one Cross section through a relay 11 ', in which the Connecting part 41 of the cover-side contact spring 35 with the Plug connector 21 is guided around the partition 31. Of the Plug connection 22 of the bottom-side contact spring 39 is against the contact head 61 arranged offset. Furthermore, the contact unit 39/39 'arranged on the bottom in the bottom part 17 and the cover-side contact unit 35/35 'in Carrier part 13 attached to the partition 31. Carrier part 13 and bottom part 17 are inserted into one another.

Figure 8 shows a variant 11 '' of a relay with a Z-shaped Connecting parts 41. The contact units 35/35 ' and 37/37 'and 39/39' are the dividing wall 31 in on both sides opposite position arranged. The Connecting parts 41 are inserted in a clamping groove 33 between the parts 52, 52 'of the carrier part which are perpendicular to one another 13. With collar 45, 47 and parts 52 '' forming the clamping groove 34 and 55 is a labyrinth path in the bottom part of the relay between the electrically conductive parts of the different contact units 35/35 'and 37/37' or 39/39 'created.

In Figure 9, a relay 11 * is shown, in which the plug connection 21 of the cover side Contact unit 35/35 'offset against the contact head 61 is passed through the partition 31 and the Plug connection 22 of the bottom-side contact unit 39/39 ' whose foot directly through the bottom 17 'of the bottom part 17th is passed through. The bottom part 17 is the carrier base contact units 37/37 ', 39/39'. Accordingly is the inner collar 45 on the bottom part 17 and the outer Collar 47 arranged on the partition 31. For extension of the air and creepage distances, the partition 57 is the third Wall 57 'led around the collar 45,47. The pusher arm 59 'is designed as a rake. The tines 59 * of the rake 59 'are in engagement with the contact spring ends 63.

In summary, it can be said that through the Relocate the connecting parts 41 of the cover side of the Partition 31 arranged opposite contact units 35/35 ' the contact units 37/37 ', 39/39' arranged on the bottom and passing the connecting parts 41 to the Plug connections 21 through the partition 31 and between the electrically conductive parts arranged on the bottom 43,37 / 37 ', 39/39' reached a very compact relay has been. Thanks to the displacement of the plug connections 22 with the Connecting part 43 on the center line M is also between the plug connections 21, 22 a very large, all Minimum requirements for a safe separation of different Potential distance is achieved. Inside the Relays are covers by means of partitions 51, 52, 52 ', 53, 55 87.89 and collar 45.47 labyrinthine paths for air and Creepage distances created, which also this To fit in requirements.

Claims (10)

Relay (11, 11 ', 11'', 11 *) with at least two contact units (35/35', 39/39 '), which are separated by an insulating partition (31), each contact unit having at least two contact elements, from which at least one (35,39) is an elongated contact spring aligned parallel to the partition (31), the contact end (63) of which can be moved parallel to the partition (31) for establishing or interrupting contact, with an actuating member (44) for moving the Contact ends and with plug connections (21, 22, 23) for connecting the relay (11, 11 ', 11'', 11 *), which plug connections can be plugged in the direction perpendicular to the partition, characterized in that the plug connections (21) of the contact members (35, 35 ') are arranged on one side of the partition (31) at the end of the contact springs (35) opposite the contact end (63) and the plug connections (22) of the contact members (37/37', 39/39 ') on the other side of the partition (31) to the Konta ktende (63) offset from the former plug connections (21), preferably arranged about half the length of the contact springs (eg 39), and are arranged in the direction of movement of the contact springs at a distance from the contact springs and / or that the connecting parts (41) from the Contact members (35/35 ') on one side of the partition to the associated plug connections (21) on the other side of the partition (31) are passed through the partition (31). Relay according to claim 1, characterized in that those led through the dividing wall Connecting parts (41) from the contact members (35/35 ') on one side of the partition (31) to the associated plug connections (21) on the on the other side of the partition (31) between the arranged on the other side of the partition Contact members (37/37 ', 39/39') and / or with this related electrically conductive parts (43) are passed. Relay according to claim 1 or 2, characterized characterized that the contact unit (35,35 ') on one side of the partition opposite the Contact unit (39/39 ') on the other side of the Partition parallel to the partition (31) and approximately perpendicular to the length of the contact springs (35/35 ', 39/39') is arranged offset. Relay according to one of claims 1 to 3, characterized characterized in that the plug connections (21), which at the attached end of the contact springs are arranged through the partition (31) are passed through. Relay according to one of claims 1 to 4, with a Housing (15), which consists of a cover (19) and a bottom part (17), which the Contact units (35/35 ', 37/37', 39/39 ') that Partition (31) and the actuator (44) enclose, the bottom (17 ') of the bottom part (17) is arranged parallel to the partition and Openings (75,77,79) for the plug connections has, characterized in that the by passed through the partition (31) Connecting parts (41) on the bottom side of the partition (31) each with a partition (31) connected collar (45) and on the base part (17) trained collar (47/47 ') at least partially are surrounded and that one collar around the other is arranged around so that the creep and Clearances between those with the contact members the parts connected on one side (35/35 ', 41) and the one with the contacts on the other side connected parts (37/37 ', 39/39', 43) at least have a certain value. Relay according to one of claims 1 to 5, which engages the contact springs (35,37,39) with a slide (59,65), which with the Actuator (44) can be moved, thereby characterized that the slide (59,65) two separated by a slot, on the same level arranged elongated plates (59) on a web (65), the web (65) in engagement with the Actuator (44.67) and the partition (31) perpendicular to the plate (59) in the slot is arranged, and that a cross-sectionally T-shaped Cover (87) with the transverse surface parallel to the platelets (59) between the platelets and the housing (15) is arranged and with a comb (89) perpendicular to the transverse surface in a groove (91) in the partition (31) is stuck so that the platelets (59) in the with the contact springs (35,37,39) engaging position are held and also the air and creepage distance between those through the Partition (31) separate contact units (35/35 ', 37/37', 39/39 ') at least one specific Mass has. Relay according to one of claims 1 to 6, which the actuator by one Electromagnet (44) with a coil (71) around one Core (73) is formed, characterized in that that at the two ends of the coil (71) one each Pluggable perpendicular to the partition (31) Plug connection (23) for the coil (71) arranged is. Relay according to one of claims 1 to 7, characterized characterized that the contact units (35/35 ', 37/37', 39/39 ') on both sides of the Partition (31) on the partition or on one also the part forming the partition (13) are attached. Relay according to Claim 8, characterized in that the actuator (44) in the carrier part (13) can be inserted. Relay according to one of claims 1 to 9, which the actuator by one Tilt anchor (69) having electromagnets (44) is formed, the core (73) approximately parallel to the Contact springs (e.g. 35) is aligned characterized that the tilt axis of the tilt anchor (69) is arranged at the pole which corresponds to the movable contact ends (63) of the contact springs (35,37,39) near the pole.

Images