EP0846330A1 - Elektromagnetisches relais und dessen verwendung auf einer leiterplatte - Google Patents
Elektromagnetisches relais und dessen verwendung auf einer leiterplatteInfo
- Publication number
- EP0846330A1 EP0846330A1 EP96923819A EP96923819A EP0846330A1 EP 0846330 A1 EP0846330 A1 EP 0846330A1 EP 96923819 A EP96923819 A EP 96923819A EP 96923819 A EP96923819 A EP 96923819A EP 0846330 A1 EP0846330 A1 EP 0846330A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- spring
- base body
- armature
- relay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000013011 mating Effects 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004382 potting Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241001104043 Syringa Species 0.000 description 1
- 235000004338 Syringa vulgaris Nutrition 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/14—Terminal arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/021—Bases; Casings; Covers structurally combining a relay and an electronic component, e.g. varistor, RC circuit
Definitions
- the invention relates to an electromagnetic relay with at least one switching system, which has: a base body forming a base plate, a contact spring connecting element and at least one counter-contact element, each of which is anchored in the base body, one with its winding axis perpendicular to the base plate standing coil with a core and a yoke, - an armature arranged between the coil and the base plate and a contact spring connected to the armature, which cooperates with the counter-contact element.
- the invention also relates to the use of such a relay on a printed circuit board.
- a relay of the type mentioned is known for example from DE 28 54 591 AI.
- the contact spring is attached to the yoke as an armature return spring, and the associated connection element is on the opposite side with the
- DE 42 43 852 Cl also shows a relay of the type mentioned at the beginning.
- the contact spring is first angled upwards at the rear of the yoke in order to obtain a sufficient spring length, then downwards by 180 ° bent and plugged onto the associated connection element via a connecting element in the form of a spring-type clamping device, where it is then welded tight in a further operation.
- the aim of the present invention is to design an electromagnetic relay of the type mentioned at the outset in such a way that it can switch high currents with good use of space, can be produced inexpensively with a few simple parts and with largely identical individual parts both as single relays and as double or multiple relays can be manufactured.
- the contact spring forms two spring legs which are connected to one another in a U-shape in the area of the armature bearing and whose ends lie approximately next to one another in the vicinity of the movable armature end, in that a first spring leg acts as a return leg with the contact spring connecting element is connected and that the second spring leg is connected as a contact leg to the armature and interacts at its free end with the mating contact element for making contact.
- the contact spring provided according to the invention receives a sufficient spring length with a relatively large spring width for guiding even higher switching currents via the two spring legs connected in a U-shape. Since the spring lies directly below the armature above the base plate and is directly connected to the connecting element via its return leg, the current path can also be kept short and ensure a low transition resistance. To achieve a large spring section, it is expedient for the contact spring with its two spring legs to cover almost the entire area below the armature, the ends of the spring legs projecting beyond the movable armature end and the contact spring connecting element as well as that Mating contact element in the area in front of the movable one Anchor ends are anchored in the base plate and are angled towards each other in the direction of the free ends of the spring legs.
- the U-shape of the contact spring can be obtained, for example, by cutting out the two spring legs from an essentially flat spring plate and, if necessary, only providing them with pretensioning bends.
- the two spring legs are obtained by a U-shaped folding of the contact spring by 180 °, the ends of the spring legs being cut away from one another approximately up to half the total spring width; In this way, the relevant end sections can be pivoted toward one another without abutting one another, while the total spring width is available for the current flow in the area of the U-shaped bend.
- contact sections of the contact spring and the mating contact element as well as the contact spring connecting element protrude beyond the area of the coil base area, on the one hand to allow a large spring length and on the other hand to make magnetic circuit parts with large pole faces easy to manufacture, contact sections and A free space in front of the coil that can be used for other purposes. If an approximately cuboid cap is placed on the relay, this free space inside the cap can be used to hold additional components, such as resistors or diodes or a control module.
- the free space lying outside the housing in this case can also be used to arrange other components, the connecting wires of which then lie next to the relay in the line ⁇ terplatte be contacted.
- FIG. 3 and 4 an armature contact spring assembly of the relay from FIG. 2 in a side view and in a perspective view,
- FIG. 5 shows the basic body of the relay from FIG. 2 in a perspective view
- FIG. 6 shows a modified contact spring in a perspective view
- FIG. 7 shows a modified single relay with a contact spring according to FIG. 6 in a side sectional view
- FIG. 8 shows a magnet system for a relay according to FIG. 1 or 2 in a perspective view
- FIG. 9 shows a base body of a relay according to FIG. 1 or 2 equipped with an armature contact spring assembly
- FIG. 10 shows an illustration of the yoke fastening in a relay according to FIG. 1 or 2,
- FIG. 11 shows a double relay with two relay switching systems according to FIG. 1 or 7,
- FIG. 12 shows the arrangement of the two switching systems for the relay according to FIG. 11 without a cap in a perspective view
- FIG. 13 shows a double base body for accommodating two switching systems
- FIG. 14 shows a single relay with a stepped cap when installed in a printed circuit board together with other components.
- the relay shown in Figures 1 to 5 has a base body 1 of generally L-shaped shape, namely with a substantially horizontal base plate 11 and a vertical support member 12.
- the terms “horizontal” and “vertical” refer to the whole Description on a horizontal installation position of the relay, whereby the base plate sits in parallel on a horizontal circuit board.
- the base plate 11 has peripheral side walls Ila, Ilb and 11c; at the end distant from the holding part 12, the side walls Ila and Ilb form, with inwardly projecting ribs and grooves, mutually opposite plug-in shafts 13 for receiving the contact elements to be described later.
- the vertical mounting part 12 has a generally U-shaped cross section with side walls 12a and 12b and a rear wall 12c.
- windows 14 are cut out, the function of which will be explained later.
- the rear wall 12c has a window 18 which ensures the freedom of movement of the anchor, which is also described later.
- winding pins 22a are anchored with coil connecting pins 22b bent downwards.
- the round core 23 has at its lower end a pole plate 23a which is enlarged in cross section and has a pole face 25.
- the yoke 24 is with its first leg 24a at the upper end of the core 23 attached, for example by notching, welding or the like.
- the vertical leg 24b of the yoke is inserted into the guide shaft 17 of the base body and fastened there.
- the lower end edge 24c of the yoke leg 24b forms a support for an armature 26, which forms a working air gap with the pole face 25.
- a contact spring 3 is attached to the armature on its underside, which is cut essentially from a spring plate in a U-shape (see FIG. 4) and thus forms two spring legs, namely a return leg 31 and a contact leg 32.
- the two spring legs lie approximately in one • plane, but are movable against each other at their ends and, at most, slightly bent out of their common sheet-metal plane with.
- the rest leg is fastened with its end 31a to a contact spring connecting element 4, which is bent in an L-shape and is anchored with its vertical section 41 in a plug-in shaft 13 of the base body.
- This vertical section 41 also carries a connecting pin 41a, while a horizontal section 42 carries the contact spring 3.
- the contact leg 32 is fastened to a central section of the armature via a rivet 33 or in another way.
- the movable end 32a of the contact leg carries opposite contact pieces 32b which cooperate with corresponding counter-contact elements.
- a normally open counter-contact element 5 is bent in an L-shape; a vertical section 51 is in turn anchored in a slot 13 of the base body; it also forms a pin 51a.
- a horizontal section 52 of the normally open counter-contact element carries a contact piece 52a.
- a likewise counter-contact element 6 bent in an L-shape is anchored with a vertical section 61 in an opening 16 in the base plate 11, while a horizontal portion 62, which carries a contact piece 62a, is anchored on the base plate 11 rests and thereby ensures the stability of this counter-contact element.
- FIG. 6 shows a modified contact spring 35, the spring legs 36 and 37 of which are not cut out of one plane, but are obtained by folding the leaf spring by 180 °, namely about an axis parallel to the armature bearing axis.
- the two spring legs namely the return leg 36 and the contact leg 37, are cut diagonally in opposite directions towards their free ends, so that they can lie side by side in one plane in these end sections 36a and 37a and can be moved against each other.
- both spring legs In the area of the bend 35a, on the other hand, both spring legs have the full width of the contact spring, which essentially corresponds to the armature width. As a result, even higher load currents can be carried than in the embodiment according to FIGS. 3 and 4.
- the contact spring .35 is otherwise fastened with its spring legs in the same way and provided with contact pieces as the contact spring 3 shown in FIG. 4.
- Their arrangement in a relay is shown in FIG.
- the relay is otherwise constructed in exactly the same way as that shown in FIG. 1.
- a housing cap 10 is additionally shown in FIG. 7, which is put over the magnet system and connected to the base body 1. The remaining gaps between the base body 1 and the housing cap 10 are filled with sealing compound 7 and sealed.
- the magnet system 2 shown in FIG. 8, which corresponds to that of FIG. 2, is inserted into the base body 1, which according to FIG. 9 already has the armature 26, the contact spring 3 including the connecting element 4 and the counter-contact elements 5 and 6 is equipped.
- the width of the yoke leg 24b corresponds exactly to the inside width in the guide shaft 17.
- teeth 27 are formed on the outer edges of the yoke leg 24b, which extend over the width of the Survive slot 13. When the yoke leg 24b is pressed into the guide shaft 17, the side walls 12a and 12b are therefore widened by the teeth 27.
- the yoke is pushed into the guide shaft 17 until the lower yoke edge 24c bears against the armature and the armature has a predetermined overstroke when the contact piece 32b bears against the make contact piece 52a.
- This overstroke can be measured, for example, by a probe pressing the armature through a hole (not shown) in the base plate and by measuring the path of the armature from the first closing of the normally open contact to the final contact of the armature with the pole face 25.
- notch punches 9, which are preferably firmly connected to the pressure punches 8, can be pressed in the area of the windows 14 and 15 through the side walls 12a and 12b onto the side edges of the yoke leg 24b, so that the notch cutting edges 91 dig into the material of the yoke.
- the resulting notch drafts 28 on the side edges of the yoke leg 24b additionally ensure that the magnet system is firmly seated in the desired position.
- the underside of the base plate 11 is sealed with a potting compound 7 in a preferred embodiment of the relay. This potting compound also penetrates into the edge gap between the base body 1 and the cap 10 (see FIG. 7). As is also shown there, the potting compound 7 can also flow into the guide shaft 17 of the holding part 12 by capillary action and additionally glue the yoke leg 24b.
- FIG. 11 shows a double relay, two switching systems according to FIGS. 1 and 2 or according to FIG. 7 being accommodated in a cap 100.
- two base bodies 1 with the magnet systems built thereon are mounted independently of one another and then accommodated next to one another in the cap 100.
- the two systems without a cap are shown in FIG.
- the two yokes 24 are adjusted independently of one another in the respectively associated base body 1 and fixed by pressing the side walls 12a and 12b together according to FIG. After inserting the two systems into the cap 100, the common underside of the two can
- Base body 1 for sealing or be glued in the cap.
- a common base body 101 which forms a base part with two trough-shaped depressions with a base plate 111 and with the side walls lilac, Illb and 111c and with an intermediate wall Illd.
- plug-in shafts 13 are provided as in the single base body 1 according to FIG. 5.
- a double mounting part 112 is also formed with side walls 112a and 112b, a common rear wall 112c and an intermediate wall 112d as a double version of the above-mentioned single base body 1. Accordingly, this double base body 101 also has two parallel guide shafts 17 for the two yokes 24.
- the two yoke legs 24b are installed in the guide shafts 17 analogously to FIG. 10 with the difference that now with the Pressure stamps 8 is pressed onto the outer side walls 112a and 112b, while the common middle wall 112d absorbs the forces of the pressure stamps 8 from both sides.
- Switching systems with different functions e.g. B. a pole-changing relay and a single relay, can be accommodated in a common housing. Depending on the most economical production method, some can
- Base body 1 and / or a multiple base body for two or more switching systems can be accommodated in the common cap. This results in an inexpensive assembly of such a multiple relay on a printed circuit board.
- the contact-making parts of the contact spring 3 and the counter-contact elements 5 and 6 are arranged essentially outside the area covered by the magnetic system 2.
- the space below the coil can be fully used for a wide contact spring, but also for a pole plate 23a and an armature 26 with a large area.
- a core with a round pole plate 23a is provided, which is easier to manufacture and assemble than a core with a pole plate cut on one side.
- the free space above the contact-making parts can be used, for example, in a cap 10 according to FIG. 7 or in a cap 100 according to FIG. to bring.
- cap in a step-like manner in adaptation to the shape of the relay construction, as is shown, for example, in FIG. 14 with the cap 200.
- the base part In the area of the base part, it has a projecting projection 201 above the contact elements, while the upper part 202, which only comprises the coil width or depth, springs back in steps.
- the free space above the projecting Part 201 can be used to accommodate other components 204, the connection wires 205 of which are then soldered next to the relay in corresponding holes 206 in the circuit board.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Burglar Alarm Systems (AREA)
- Relay Circuits (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19531045 | 1995-08-23 | ||
DE19531045 | 1995-08-23 | ||
PCT/DE1996/001232 WO1997008724A1 (de) | 1995-08-23 | 1996-07-08 | Elektromagnetisches relais und dessen verwendung auf einer leiterplatte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0846330A1 true EP0846330A1 (de) | 1998-06-10 |
EP0846330B1 EP0846330B1 (de) | 1999-02-03 |
Family
ID=7770213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96923819A Expired - Lifetime EP0846330B1 (de) | 1995-08-23 | 1996-07-08 | Elektromagnetisches relais und dessen verwendung auf einer leiterplatte |
Country Status (7)
Country | Link |
---|---|
US (1) | US5889451A (de) |
EP (1) | EP0846330B1 (de) |
JP (1) | JPH11512220A (de) |
AT (1) | ATE176550T1 (de) |
BR (1) | BR9610190A (de) |
DE (1) | DE59601280D1 (de) |
WO (1) | WO1997008724A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7116193B2 (en) * | 2004-09-29 | 2006-10-03 | Hella Kgaa Hueck & Co. | Electromagnetic relay |
JP4471859B2 (ja) * | 2005-01-31 | 2010-06-02 | 富士通コンポーネント株式会社 | 電磁継電器 |
JP4535138B2 (ja) * | 2008-01-25 | 2010-09-01 | パナソニック電工株式会社 | 連設型リレーユニット |
CN103985600B (zh) * | 2014-04-15 | 2015-10-21 | 明光市三友电子有限公司 | 通用高灵敏型信号继电器 |
CN104851746B (zh) * | 2015-05-25 | 2017-02-01 | 上海电科电器科技有限公司 | 可逆开关装置及其联动拆卸装置 |
US9754747B1 (en) * | 2016-04-25 | 2017-09-05 | Song Chuan Precision Co., Ltd. | Relay device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL81479C (de) * | 1951-06-06 | |||
CH546477A (de) * | 1972-10-18 | 1974-02-28 | Rausch & Pausch | Klappankerrelais. |
GB1600762A (en) * | 1977-12-23 | 1981-10-21 | Lucas Industries Ltd | Electromagnetic relay |
US4745382A (en) * | 1986-05-22 | 1988-05-17 | Siemens Aktiengesellschaft | Electromagnetic relay for automatic assembly |
DE4243852C1 (de) * | 1992-12-23 | 1994-03-31 | Hella Kg Hueck & Co | Elektromagnetisches Relais |
DE4429552A1 (de) * | 1994-08-19 | 1996-02-22 | Siemens Ag | Ankerhalterung für ein elektromagnetisches Relais |
-
1996
- 1996-07-08 AT AT96923819T patent/ATE176550T1/de not_active IP Right Cessation
- 1996-07-08 US US09/011,406 patent/US5889451A/en not_active Expired - Fee Related
- 1996-07-08 WO PCT/DE1996/001232 patent/WO1997008724A1/de active IP Right Grant
- 1996-07-08 JP JP9509676A patent/JPH11512220A/ja active Pending
- 1996-07-08 BR BR9610190A patent/BR9610190A/pt not_active Application Discontinuation
- 1996-07-08 DE DE59601280T patent/DE59601280D1/de not_active Expired - Lifetime
- 1996-07-08 EP EP96923819A patent/EP0846330B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9708724A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0846330B1 (de) | 1999-02-03 |
ATE176550T1 (de) | 1999-02-15 |
US5889451A (en) | 1999-03-30 |
BR9610190A (pt) | 1998-12-15 |
JPH11512220A (ja) | 1999-10-19 |
DE59601280D1 (de) | 1999-03-18 |
WO1997008724A1 (de) | 1997-03-06 |
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