EP0142061A1 - Relais électromagnétique et méthode pour sa fabrication - Google Patents
Relais électromagnétique et méthode pour sa fabrication Download PDFInfo
- Publication number
- EP0142061A1 EP0142061A1 EP84112528A EP84112528A EP0142061A1 EP 0142061 A1 EP0142061 A1 EP 0142061A1 EP 84112528 A EP84112528 A EP 84112528A EP 84112528 A EP84112528 A EP 84112528A EP 0142061 A1 EP0142061 A1 EP 0142061A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- coil
- pin
- spacer
- bent
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
- H01H50/443—Connections to coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/10—Connecting leads to windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H49/00—Apparatus or processes specially adapted to the manufacture of relays or parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
- H01H2050/446—Details of the insulating support of the coil, e.g. spool, bobbin, former
Definitions
- the invention relates to an electromagnetic relay with a coil body carrying a winding and winding connection elements, at least one of the winding connection elements being fastened to a coil flange, from there bent into the winding area and forming a connecting pin in the winding area.
- the invention also relates to a method for producing such a relay.
- connection pins in the winding area can, however, only be brought to their final position after the winding has been applied, since they would in any case disturb and hinder winding.
- the coil connection part to be bent in is not arranged next to the coil winding, but in the space below the winding, so that there is still room for the attack of the bending tool.
- the connection element used in the known relay requires several machining operations, since the sheet metal part must be cut and pre-bent before embedding in the coil former and only finally bent into the desired shape after embedding in the coil former and after the coil winding has been applied.
- the object of the invention is to improve a relay of the type mentioned in such a way that connection elements provided in the coil winding area can be brought into a precisely defined position in the intended grid due to the special design and fastening with a minimum of tools and operations.
- connection element with a straight, round cross-section and smooth surface fastening section perpendicular to the axial direction of the coil is embedded in the coil flange and forms a spacer by bending by 90 ° and by further bending by 90 ° the connecting pin.
- connection element By forming the connecting element from a piece of wire that is round and straight, at least in the embedding area, a connecting pin can be obtained in a very simple manner and with two simple bending processes by 90 ° in each case, which pin can be dimensioned exactly at a distance from the embedding axis. It is important that the connection element has a smooth round surface in the embedding area. This makes it possible to bend the connecting element immediately after injecting the 'bobbin and the associated injection of the connecting element into the desired shape outside the coil winding area and after winding the coil by a simple rotary movement around the embedding axis in the space next to or to bring under the winding. It has been shown that a round wire embedded in this way can be rotated as easily as in a bearing.
- connection element only needs to be bent once, namely between spraying the coil former and applying the winding, in a simple manner, this bending process being able to take place laterally from the coil flange and thereby the dimensions provided with respect to the connection grid being maintained in a simple manner can.
- connection element The fastening section of the connection element is arranged in a suitable manner parallel to the intended direction of the connection pin.
- the connection element then has a simply bent shape and needs after winding the coil to be rotated only 90 ° around the embedding axis.
- other bending configurations are also conceivable, in which the connecting pin is first molded on outside of the winding area and is brought into the winding area by rotating the connecting element about the embedding axis.
- the end of the connecting element opposite the connecting pin expediently forms a winding pin protruding from the coil flange, which is bent parallel to the spacer. After the coil end has been wound onto this winding pin, it is rotated together with the connecting pin formed on the other end together about the embedding axis and is then also located in the winding area to save space.
- the coil flange each has a shoulder in the area of the spacer and, if appropriate, the winding pin.
- the bent connector pin which is brought into the winding area by twisting, or two opposite connector pins of this type can be positioned precisely on the connection side of the relay by means of a frame which is subsequently attached.
- the connector pin can be fixed in the area of the winding in any case when the relay is later cast with the cast resin which also embeds the spacer and part of the connector pin.
- the coil body is first formed from insulating material, at least one connecting element in the form of a straight wire with a round cross section being embedded in at least one coil flange, so that the wire end protruding to one side is bent twice by 90 ° that the bent wire sections do not protrude into the winding space and that the spacer formed between the first and the second bend corresponds to the desired distance between the embedding axis and the connecting pin, that the winding is then applied to the coil former and one winding end each with one from the coil flange protruding winding section of a connecting element is connected and that the spacer is then brought to the connecting pin by rotating the connecting element about its embedding axis in the area next to or below the winding.
- Fig. 1 shows a bobbin 1, which was obtained by injection molding. It has a coil tube 2 and two coil flanges 3 and 4, which are specially designed as carriers for the other functional elements of the relay. However, these are not the subject of the present invention.
- connecting pins 5 and 6 in the coil flange 4 a connecting pin 7 is embedded in the form of an initially straight piece of wire (shown in broken lines).
- a spacer 5a and a connecting pin 5b are formed on the connecting elements 5.
- the length of the spacer 5a corresponds to the later desired distance of the connecting pin 5b from the embedding plane of the connecting element 5.
- the end of the connecting element 5 or 6 protruding from the top of the coil flange 3 is bent outward in the same direction as the spacer 5a and thus forms one winding pin 5c or 6c.
- the end of the connecting element 7 protruding upwards can be bent outwards to form a winding pin 7c.
- One or more coil windings can now be applied to the tube 2, the winding starts or ends being wound onto one of the winding pins 5c, 6c or 7c and optionally soldered on.
- the connecting element 5 By turning the connecting element 5 about the embedding axis in the direction of the arrows 8 by about 90 ° inwards, the spacer 5a and the connecting pin 5b are brought into the area next to or below the winding; this position is identified by the reference numerals 5a 'and 5b'.
- the pin 6 is rotated inwards.
- the winding pin 5c is also turned inwards and takes the position 5c 'there.
- the rotation about the embedding axis is made possible by the fact that the connecting elements 5 and 6 and 7 each have a round cross section and a smooth surface, so that they can be rotated in the plastic mass of the coil body as in a bearing.
- paragraphs 9 and 10 are also provided, whereby the embedding length of the connecting elements 5 and 6 is kept relatively short and allows easy twisting.
- the bent parts, namely the spacer 5a and the winding pin 5c can be arranged within the contours of the coil body in the free space between the rounding of the winding and the respective edge of the later cuboid housing.
- the connecting pin 7 can also be rotated in a comparable manner, so that the winding pin 7c is also brought into the winding area.
- FIG. 2 and 3 show a relay using a coil former from FIG. 1.
- a contact tongue 11 is arranged in the interior of the coil former, which is provided in one piece with a connecting pin 12 at its fastening end. With the free end, the contact tongue 11 interacts with mating contact elements or pole plates 13, which also each have connecting pins 14.
- a permanent magnet 15 and a yoke 16 complete the magnetic circuit of the relay.
- the coil connection pins 5b and 6b described with reference to FIG. 1 these come to lie exactly in the middle between the connection spikes 12 and 14. They are therefore exactly in the desired grid and have the required insulation distances from the other parts.
- the entire relay is embedded in a mold in casting resin 17, as a result of which the connecting elements 5 and 6, in particular their bent sections 5a and 5b or 6a and 6b (not visible), are also fixed in their final position.
- the coil body 21 is shaped in this case so that the contact spring 22 lies flat in it, while the mating contact plates or pole plates 23 and 24 are arranged one above the other in a corresponding manner.
- coil connecting elements 25 and 26 are embedded in the coil former 21 and rotated after the coil winding 27 has been applied, so that the spacers 25a and 26a and the connecting pins 25b and 26b formed by angling lie in the winding area .
- the relay is inserted into a cap 28 and potted in this with casting resin 29.
- a frame-shaped retaining web 30 is placed over these connecting pins and aligned between the edges of the protective cap 28 in order to align the connecting pins 25b and 26b.
- the casting resin 29 is poured in, which fixes the connecting pins 25b and 26b, the retaining web 30 and the protective cap 28 to one another and to the coil former after curing.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Manufacture Of Motors, Generators (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84112528T ATE33730T1 (de) | 1983-10-20 | 1984-10-17 | Elektromagnetische relais und verfahren zu dessen herstellung. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3338182 | 1983-10-20 | ||
DE19833338182 DE3338182A1 (de) | 1983-10-20 | 1983-10-20 | Elektromagnetische relais und verfahren zu dessen herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0142061A1 true EP0142061A1 (fr) | 1985-05-22 |
EP0142061B1 EP0142061B1 (fr) | 1988-04-20 |
Family
ID=6212350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84112528A Expired EP0142061B1 (fr) | 1983-10-20 | 1984-10-17 | Relais électromagnétique et méthode pour sa fabrication |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0142061B1 (fr) |
AT (1) | ATE33730T1 (fr) |
DE (2) | DE3338182A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0348909A2 (fr) * | 1988-06-30 | 1990-01-03 | Siemens Aktiengesellschaft | Relais électromagnétique à coupure en charge |
EP2251886A1 (fr) * | 2009-05-14 | 2010-11-17 | Good Sky Electric Co., Ltd. | Relais électromagnétique et son procédé d'assemblage |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT410854B (de) * | 1994-02-22 | 2003-08-25 | Tyco Electronics Austria Gmbh | Spulenkörper für ein relais |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1272454B (de) | 1964-06-05 | 1968-07-11 | Siemens Ag | Spulenkoerper fuer elektromagnetische Relais |
US4031493A (en) * | 1975-12-12 | 1977-06-21 | Bell Telephone Laboratories, Incorporated | Miniature low profile relay |
DE2647203A1 (de) * | 1976-10-19 | 1978-04-27 | Siemens Ag | Elektromagnetisches miniaturrelais |
DE2709219B1 (de) * | 1977-03-03 | 1978-09-14 | Westfaelische Metall Industrie | Relais mit einem aus Isolierstoff bestehenden Spulenkoerper |
US4145805A (en) * | 1977-05-11 | 1979-03-27 | Standex International Corporation | Method of making a reed relay with molded bobbin |
GB2030366A (en) | 1978-08-29 | 1980-04-02 | Sauer H | Electromagnetic relay |
EP0082238A1 (fr) * | 1981-12-18 | 1983-06-29 | Hermann Stribel KG | Relais |
US4405911A (en) * | 1980-09-26 | 1983-09-20 | Fujitsu Limited | Electromagnetic relay |
-
1983
- 1983-10-20 DE DE19833338182 patent/DE3338182A1/de not_active Withdrawn
-
1984
- 1984-10-17 AT AT84112528T patent/ATE33730T1/de not_active IP Right Cessation
- 1984-10-17 DE DE8484112528T patent/DE3470629D1/de not_active Expired
- 1984-10-17 EP EP84112528A patent/EP0142061B1/fr not_active Expired
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1272454B (de) | 1964-06-05 | 1968-07-11 | Siemens Ag | Spulenkoerper fuer elektromagnetische Relais |
US4031493A (en) * | 1975-12-12 | 1977-06-21 | Bell Telephone Laboratories, Incorporated | Miniature low profile relay |
DE2647203A1 (de) * | 1976-10-19 | 1978-04-27 | Siemens Ag | Elektromagnetisches miniaturrelais |
DE2709219B1 (de) * | 1977-03-03 | 1978-09-14 | Westfaelische Metall Industrie | Relais mit einem aus Isolierstoff bestehenden Spulenkoerper |
US4145805A (en) * | 1977-05-11 | 1979-03-27 | Standex International Corporation | Method of making a reed relay with molded bobbin |
GB2030366A (en) | 1978-08-29 | 1980-04-02 | Sauer H | Electromagnetic relay |
US4405911A (en) * | 1980-09-26 | 1983-09-20 | Fujitsu Limited | Electromagnetic relay |
EP0082238A1 (fr) * | 1981-12-18 | 1983-06-29 | Hermann Stribel KG | Relais |
DE3150125A1 (de) | 1981-12-18 | 1983-07-07 | Hermann Stribel KG, 7443 Frickenhausen | Verfahren zur herstellung eines relais und danach hergestelltes relais |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0348909A2 (fr) * | 1988-06-30 | 1990-01-03 | Siemens Aktiengesellschaft | Relais électromagnétique à coupure en charge |
EP0348909A3 (fr) * | 1988-06-30 | 1991-07-17 | Siemens Aktiengesellschaft | Relais électromagnétique à coupure en charge |
EP2251886A1 (fr) * | 2009-05-14 | 2010-11-17 | Good Sky Electric Co., Ltd. | Relais électromagnétique et son procédé d'assemblage |
Also Published As
Publication number | Publication date |
---|---|
ATE33730T1 (de) | 1988-05-15 |
DE3338182A1 (de) | 1985-05-02 |
EP0142061B1 (fr) | 1988-04-20 |
DE3470629D1 (en) | 1988-05-26 |
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