EP0410984A1 - Spulenkörper und verfahren zur hestellung eines spulenkörpers. - Google Patents
Spulenkörper und verfahren zur hestellung eines spulenkörpers.Info
- Publication number
- EP0410984A1 EP0410984A1 EP89904004A EP89904004A EP0410984A1 EP 0410984 A1 EP0410984 A1 EP 0410984A1 EP 89904004 A EP89904004 A EP 89904004A EP 89904004 A EP89904004 A EP 89904004A EP 0410984 A1 EP0410984 A1 EP 0410984A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coil
- coil body
- extensions
- webs
- extension
- 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
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
- H01F5/00—Coils
- H01F5/04—Arrangements of electric connections to coils, e.g. leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0056—Apparatus or processes specially adapted for the manufacture of electric switches comprising a successive blank-stamping, insert-moulding and severing operation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/041—Details concerning assembly of relays
- H01H50/043—Details particular to miniaturised relays
-
- 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 a coil body for an electromagnetic relay with a support area for the coil winding and with connection elements, each of which has a section which can be connected to the winding ends of the coil winding and a section formed as a connection contact, at least one connection element having an extension which extends in the direction of the longitudinal axis of the coil former and is at least partially surrounded by the material of the coil former.
- Such a coil former is known from DE-OS 33 18 493.
- This known bobbin has a support area for a coil winding, which is laterally delimited by two flanges arranged transversely to the longitudinal axis of the bobbin.
- the coil former also contains connection elements, each of which has a section that can be connected to the winding ends of the coil winding and each has a further section designed as a connection contact.
- the connecting elements each have an extension that extends outside the coil winding in the direction of the longitudinal axis of the coil body and is embedded with its end region in the respective flange.
- a flat core is embedded in this coil former, through which the coil former also receives a relatively high mechanical strength in the supporting area.
- the extension is embedded in the supporting area of the bobbin and largely extends through the supporting area.
- the coil former designed according to the invention has a high mechanical strength and that at least one connection element has an extension which extends into or extends through the support area and is embedded therein 1 thus contributes to the improvement of the mechanical properties of a relay with such a coil former.
- the coil former according to the invention is advantageous because without an additional structural element, its stability and its mechanical strength can be increased simply by using a connecting element with a correspondingly designed and arranged extension.
- the embodiment of the coil former according to the invention is particularly advantageous if it has one or more cavities and / or is made in several parts.
- a further increase in the mechanical strength of the coil body can advantageously be achieved in that at least one further connection element has an extension and that this extension is embedded in the support area of the coil body.
- connection elements can be designed in such a way that their extensions have, for example, a U-shaped, Z-shaped or else an elongated shape which extends essentially in the longitudinal axis of the coil body.
- each extension contains one or more webs. This configuration is particularly advantageous in terms of manufacturing technology.
- the webs are at least partially parallel to one another in the supporting area.
- a further advantageous embodiment of the outer bobbin provides that one extension has at least two parallel webs of different lengths and that the other extension has at least the same number of parallel webs of corresponding lengths, so that gaps are formed between the ends of the webs, which in different planes perpendicular to the longitudinal axis of the coil body.
- the mechanical weak points which occur as a result of the gaps serving to mutually isolate the connecting elements between the ends of the webs can be relocated to different areas of the coil former and thus the mechanical properties of the coil former can be influenced favorably.
- a further advantageous embodiment of the bobbin according to the invention is that the webs of the extensions are connected to one another via at least one structural unit which is at least partially located within the supporting region of the bobbin.
- the connecting elements form a unit that is easy to handle in terms of production technology in that their extensions are connected to one another via the at least one structural unit.
- the structural unit can be designed as a purely mechanical connecting element of the extensions and connect the extensions electrically insulated from one another.
- connection elements can also run in the supporting area of the coil body in such a way that they do not touch and are therefore isolated from one another.
- the connecting elements it is also possible for the connecting elements to be connected via an elongated non-conductor and for the
- Non-conductor lies in the area of the support area of the coil body and thus in principle forms the extensions of the connection elements combined to form a material unit.
- the extensions of the connecting elements may overlap or to abut one another to carry out and to connect and to avoid direct electrical contact by means of suitable insulation measures, for example by interposing an insulation film.
- suitable insulation measures for example by interposing an insulation film.
- a further advantageous embodiment of the coil former according to the invention provides that the structural unit consists of at least one additional electrical component and that the webs of the extensions are electrically connected to one another via the additional electrical component.
- one or more additional electrical components for example diodes or resistors, can be connected to one another or to the connection elements for connecting the coil winding in the desired circuit arrangement.
- the webs further isolated areas exhibit.
- the space requirement of the coil body is not significantly increased despite additional electrical components and also has a positive influence on the mechanical behavior of the coil body.
- the assembly can consist exclusively of an additional electrical component. However, it is also conceivable to use a uniform housing into which any additional electrical components are introduced.
- Advantageously designed contact elements can then be led out of this housing.
- Such a standardization of the structural units used facilitates automation of the production, since structural units that perform various functions can be processed with the same feed and handling devices. If, as already mentioned, the structural unit is only intended to perform an insulating function, it is possible, when using the same housing, the contacting elements of which are in no way connected to one another, to also feed this structural unit to the manufacturing process using the same feed device. to handle with the same handling devices.
- the at least one structural unit is arranged to bridge at least one gap between the ends of the webs of the extensions. This arrangement of the at least one structural unit at least partially compensates for the mechanical weak point caused by the gap.
- An embodiment of the coil body which is advantageous in terms of production technology consists in that the at least one structural unit is arranged to bridge at least one intermediate space formed between the parallel webs of different extensions.
- the manufacturing unit formed from the connection elements with their extensions and the structural unit always forms a structural unit if the gaps between the ends of the webs are only produced after the structural unit has been connected between the parallel webs of different extensions formed
- Gap has been applied bridging.
- the intermediate space formed between the webs of the extensions and the structural unit are dimensioned such that the structural unit can be at least partially inserted into the intermediate space.
- a further advantageous embodiment of the coil former according to the invention provides that in the case of a coil former with a cavity in the direction of its longitudinal axis, at least one pole plate of at least one contact element is arranged in the region of the cavity, and that the contact element is at least partially surrounded by the material of the coil former, which means that an additional Increasing the mechanical strength of the coil body is achieved.
- the coil former according to the invention in such a way that the at least one pole plate of the at least one contact element is arranged in a plane parallel to the webs such that it lies in the region of at least one of the gap formed between the ends of the webs. This is the mechanical weak point of the caused by the gap between the ends of the webs
- Coil body at least partially compensated. It is particularly advantageous if the influence of all the gaps, which affects the mechanical strength, can be compensated in this way. For this it is necessary that the gaps are arranged in such a way that they all lie in an area which lies opposite the pole plate arranged in a plane running parallel to the webs.
- the mechanical strength of the coil former according to the invention is further increased with a corresponding arrangement of the gaps if more than one pole plate is used. From a manufacturing point of view, it is particularly advantageous that in the case of a two-part coil The connection elements are contained in one coil body part and the at least one contact element is contained in the other coil body part.
- An advantageous method for producing the coil former according to the invention provides that a production part is used which contains the connection elements for at least one coil former each having an extension, and that the production part is extrusion-coated with plastic in such a way that the supporting area is formed in the region of the extensions .
- the use of a production part designed in this way is advantageous because it is easy to handle and can be easily and securely positioned and fixed in the casting mold for producing the coil former.
- Another advantageous development of the method according to the invention for producing a coil former with at least one contact element provides that a further manufacturing part is used that contains the at least one contact element, and that the further manufacturing part is extrusion-coated with plastic together with the first manufacturing part in such a way that the at least one pole plate of the at least one contact element lies in the area of the support area.
- the use of a production part is advantageous because it enables easy handling and precise fixing of the at least one contact element in the casting mold.
- a manufacturing part which contains the connecting elements for at least one coil former that the Manufacturing part is overmolded with plastic in such a way that the supporting area part of one
- Coil body part of the coil body in the area of the extensions arises that a further manufacturing part is used that contains at least one contact element that the further
- Manufacturing part is overmolded with plastic in such a way that a supplementary coil former part of the coil former is formed, the supporting area part of the supplementary coil former part in
- a production part with gaps between the extensions of the connection elements is used and that the at least one structural unit is connected to the extensions of both connection elements before injection molding with plastic.
- the gaps can be produced simultaneously with the manufacture of the connection elements; this is particularly advantageous if the assembly is arranged so that at least one of the gaps is bridged by it.
- a further advantageous development of the method according to the invention provides that a production part with connecting elements connected to one another on the extensions is used, that the structural unit is connected to the extensions of both connecting elements and that the gaps necessary for the electrical insulation of the connecting elements are subsequently created be placed before the injection molding with plastic.
- This is advantageous from a manufacturing point of view, because by attaching the structural unit, an additional mechanical connection of the extensions of the two connection elements is first established before the extensions, which are initially still connected to one another, are separated from one another by producing the gaps.
- the connection elements with their extensions and the applied structural unit always form a structural unit which can be handled advantageously during the manufacturing process.
- FIG. 1 shows a detail of an exemplary embodiment of the coil former according to the invention in a perspective view.
- 2 shows a detail of a further exemplary embodiment of the coil former according to the invention in a perspective view.
- FIG 3 shows a detail of an exemplary embodiment of the coil former according to the invention in a perspective view with a structural unit arranged in the region of the support area.
- Fig. 4 shows an embodiment of a manufacturing part with the assembly already applied.
- 5 shows a further possibility of arranging the structural unit on the production part.
- 6 shows an embodiment of the bobbin according to the invention in a two-part design
- FIG. 7 shows an embodiment of a further production part which contains a contact element.
- FIG. 1 shows a coil former 101 with a support area 102 for a coil winding 103, which is indicated as an indication.
- the support area 102 is delimited by side flanges 104 and 105.
- Connection elements 106 and 107 running at right angles to the longitudinal axis of the coil body 101 are embedded in the coil body 101 in the region of its flanges 104 and 105 and each have a section formed as a connection contact 108 and 109 and in each case a section which can be connected to the winding ends of the coil winding 103 on.
- 1 shows only the section of the connecting element 107 which can be connected to the coil winding 103 and is designed as a contacting tab 113.
- connection element 107 has an extension 111 which extends in the direction of the longitudinal axis of the coil body 101 into the support region 102 of the coil body 101 and extends through this into the region of the flange 104.
- the extension 111 is embedded in the material of the bobbin 101 in the support area 102.
- the connecting The length of the element 106 is such that an electrical contact of the connection element 106 with the connection element 107 via the extension 111 is avoided.
- the extension 111 embedded in the support area 102 gives the coil body 101 high mechanical strength with a relatively small wall thickness in the area of the support area 102.
- a coil former 1 contains a support area 2 for a coil winding 3.
- the support area 2 is delimited by two lateral flanges 4 and 5 arranged in planes perpendicular to the longitudinal axis of the coil former 1.
- Connection elements 6 and 7, which lead away from the coil former 1 at right angles to the longitudinal axis of the coil former 1 in the exemplary embodiment shown, taper towards sections which are designed as connection contacts 8 and 9.
- the connection elements 6 and 7 each have extensions 10 and 11, which contain webs 10a and 11a, which extend along the longitudinal axis of the coil former 1 within the support region 2.
- Sections of the connecting elements 6 and 7 which extend in the direction of the longitudinal axis of the coil former 1 and at least partially protrude therefrom are designed as contacting tabs 12 and 13.
- the ends of the webs 10a and 11a face each other to form a gap 16a.
- connecting elements 6 and 7 extend through the entire supporting area 2 of the coil former 1 and thus increase its mechanical strength. If the extensions 10 and 11 contain further webs 10b, 11b, which are not visible in FIG. 2 and extend through the supporting area and thus further solidify the coil former, then these should of course also be suitably insulated from one another.
- Fig. 3 is an extension of that shown in Fig. 2
- the assembly 17 bridging the gap 16a is arranged essentially within the supporting region 2 of the coil former 1 and connected to the webs 10a and 11a via connecting lugs 17a and 17b.
- Winding ends 18 and 19 of the coil winding 3 wound on the support area 2 are electrically connected to the contacting tabs 12 and 13 of the connection elements 6 and 7 at connection points 20 and 21.
- the winding end 18 is connected to the connecting element 6 at the connecting point 20 on the contacting tab 12 and the winding end 19 is connected to the connecting element 7 at the connecting point 21 on the contacting tab 13.
- the coil winding 3 can be supplied with electrical energy from an external energy source (not shown) via the connection contact 8 of the connection element 6 or the connection contact 9 of the connection element 7.
- Within the support area 2 of the coil former 1 there is a cavity 22 which extends in the direction of the longitudinal axis of the coil former 1 and which can accommodate, for example, an armature, not shown in FIGS. 2 and 3.
- the assembly 17 serves as an insulating mechanical connection of the extensions 10 and 11 or the webs 10a and 11a of the connecting elements 6 and 7.
- the coil current required to excite the coil winding 3 flows via the connection contact 8 of the connection element 6 through the connection element 6 and via the connection point 20 into the winding end 18 of the coil winding 3.
- the connection of the winding ends 18 and 19 of the coil winding 3 with the connection elements 6 and 7 also take place in other places.
- the coil current flowing through the coil winding 3 generates an electromagnetic field which is used to actuate a relay contact (not shown).
- the coil current flows over those existing between the second winding end 19 of the coil winding 3 and the contacting tab 13 Connection point 21 and via the connecting element 7 or its
- Connection lugs 17a and 17b contains an electrical additional component, a part of which flows via the connection contact 8 of the
- Connection element 6 current not supplied via the
- this part of the current supplied reaches the web 11a or the extension via the connecting lug 17b of the unit 17 11 of the connection element 7 and in this way back to the energy supply via the connection contact 9.
- the additional component contained in the assembly 17 is electrically connected in parallel according to this example of the coil winding 3.
- the connecting elements 6 and 7 with their extensions 10 and 11 or with their webs 10a and 11a and possibly the structural unit 17 (FIG. 3) are extrusion-coated with plastic to produce the coil former.
- the flanges 4 and 5 are formed perpendicular to the longitudinal axis of the coil former 1 and in the course of the connecting contacts 8 and 9 of the connecting elements 6 and 7 $ of the connecting elements which are formed at right angles to its longitudinal axis
- the support area 2 essentially arises in the area of the extensions 10 and 11 or the webs 10a and 11a and, if appropriate, in the area of the structural unit 17 (FIG. 3).
- the connection elements 6 and 7 together with their connection 25 form a production part 26, which is part of the band in a band production.
- the extensions 10 and 11 have parallel to the webs 10a and 11a extending webs 10b and 11b.
- a space 30 is present between the webs 10a and 10b or 11a and 11b.
- the webs 11a and 11b of the extension 11 are connected to one another according to FIG. 4 to further increase the mechanical rigidity by means of a cross connection 11c.
- the structural unit 17 is arranged to bridge gaps 16a and 16b, the intermediate space 30 and the structural unit 17 being dimensioned such that the structural unit 17 is introduced into the intermediate space 30.
- Fig. 5 shows a further exemplary embodiment of a manufacturing part 36, which contains the connecting elements 6 and 7, the web 10b of the extension 10 and the web 11a of the extension 11 are short, so that those formed between the ends of the webs 10a and 11a Gap 16a close to
- Connection element 7 and the gap 16b formed between the ends of the webs 10b and 11b is close to the connecting element 6.
- the mechanical weak points caused by the gaps 16a and 16b are thus caused in non-critical areas near the flanges 4 and 5 of the one not shown in FIG. 5
- the assembly 17 is bridging the space 30 with its connecting lugs 17a and 17b to the web 10a in an electrically conductive manner.
- the intermediate space 30 formed between the webs 10a and 11b and the structural unit 17 are dimensioned such that the structural unit 17 is at least partially introduced into the intermediate space 30.
- Another terminal lug 17c is electrically conductively connected to the web 11b.
- a diode 31, symbolically shown in FIG. 5, is arranged within the assembly 17 between the connecting lugs 17b and 17c. With regard to the performance of the diodes that can be used, it may be necessary to connect a further diode 32 in parallel with the diode 31.
- the connection elements 6 and 7 can be in one Operation, for example by stamping from a sheet metal.
- connection 35 together with the connection 35, they form the production part 36.
- This connection can be punched out of the same sheet metal simultaneously with the connection elements 6 and 7.
- a bobbin 1 consists of two bobbin parts 1 a and 1 b connected to one another essentially in an axial plane.
- the coil body part la contains a support area part 2a for the coil winding, not shown in FIG. 6, which is delimited by the flange parts 4a and 5a contained in the coil body part la.
- the coil body part 1b contains a supplementary support area part 2b, which forms the support area 2 together with the support area part 2a, and additional flange parts 4b and 5b of the flanges 4 and 5.
- the connection elements 6 and 7, the connection contacts 8, are introduced into the coil body part la and 9 and extensions 10 and 11 included.
- the extensions 10 and 11 are, as already shown in FIGS.
- the assembly 17 is arranged close to the flange 5 and bridges the gap 16a formed between the webs 10a and 11a.
- the coil body parts la and lb are each designed in the shape of a half shell to form the axial cavity 22; they are also provided with interlocking webs 40 or grooves 41, as a result of which the cavity 22 is closed when the coil former parts 1 a and 1 b are joined together.
- the coil body part 1b contains a contact element 42 which tapers towards one end towards a connection contact 43.
- the contact element 42 which is at least partially cast into the coil body part 1b, contains at least one pole plate 44. This pole plate 44 interacts with an armature, not shown in FIG. 6, which can be introduced into the axial cavity 22. 6 is the gap bridged by the additional component 17
- connection 51 shows a further production part 50, which consists of a contact element 42 and a connection 51.
- the contact element 42 which has at least one pole plate 44, is fastened with its connection contact 43 to the connection 51 and can thus be easily supplied, handled and positioned during the manufacture of the coil former.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnets (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Coils Or Transformers For Communication (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3813119A DE3813119A1 (de) | 1988-04-15 | 1988-04-15 | Spulenkoerper und verfahren zur herstellung eines spulenkoerpers |
DE3813119 | 1988-04-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0410984A1 true EP0410984A1 (de) | 1991-02-06 |
EP0410984B1 EP0410984B1 (de) | 1993-06-23 |
Family
ID=6352386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89904004A Expired - Lifetime EP0410984B1 (de) | 1988-04-15 | 1989-04-10 | Spulenkörper und verfahren zur hestellung eines spulenkörpers |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0410984B1 (de) |
JP (1) | JPH03503693A (de) |
DE (2) | DE3813119A1 (de) |
WO (1) | WO1989009999A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9110707U1 (de) * | 1991-08-29 | 1993-01-07 | Siemens AG, 8000 München | Spule für den elektromagnetischen Antrieb eines Schaltgerätes |
DE9110706U1 (de) * | 1991-08-29 | 1993-01-07 | Siemens AG, 8000 München | Spule für den elektromagnetischen Antrieb eines Schaltgerätes |
CN104201055B (zh) * | 2014-07-07 | 2016-04-06 | 四川宏发电声有限公司 | 一种继电器线圈端子安装工艺及设备 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE320126B (de) * | 1962-05-07 | 1970-02-02 | Philips Nv | |
US3445797A (en) * | 1967-03-16 | 1969-05-20 | Mallory & Co Inc P R | Inductor coil and bobbin with terminals |
DE3318493A1 (de) * | 1983-05-20 | 1984-11-22 | Siemens AG, 1000 Berlin und 8000 München | Elektromagnetisches kleinrelais und verfahren zu dessen herstellung |
EP0173353B1 (de) * | 1984-08-31 | 1991-09-18 | Omron Tateisi Electronics Co. | Elektromagnetisches Relais mit linear beweglicher Ankeranordnung |
US4827234A (en) * | 1986-06-23 | 1989-05-02 | Siemens Aktiengesellschaft | Electromagnetic relay |
-
1988
- 1988-04-15 DE DE3813119A patent/DE3813119A1/de not_active Withdrawn
-
1989
- 1989-04-10 EP EP89904004A patent/EP0410984B1/de not_active Expired - Lifetime
- 1989-04-10 WO PCT/DE1989/000223 patent/WO1989009999A1/de active IP Right Grant
- 1989-04-10 DE DE8989904004T patent/DE58904810D1/de not_active Expired - Fee Related
- 1989-04-10 JP JP1503711A patent/JPH03503693A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO8909999A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE58904810D1 (de) | 1993-07-29 |
JPH03503693A (ja) | 1991-08-15 |
WO1989009999A1 (en) | 1989-10-19 |
EP0410984B1 (de) | 1993-06-23 |
DE3813119A1 (de) | 1989-10-26 |
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