EP1177565A1 - Elektromagnetisches relais und verfahren zu dessen herstellung - Google Patents
Elektromagnetisches relais und verfahren zu dessen herstellungInfo
- Publication number
- EP1177565A1 EP1177565A1 EP00936710A EP00936710A EP1177565A1 EP 1177565 A1 EP1177565 A1 EP 1177565A1 EP 00936710 A EP00936710 A EP 00936710A EP 00936710 A EP00936710 A EP 00936710A EP 1177565 A1 EP1177565 A1 EP 1177565A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- relay according
- relay
- plastic
- coil
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims description 11
- 239000004033 plastic Substances 0.000 claims abstract description 27
- 229920003023 plastic Polymers 0.000 claims abstract description 27
- 238000004804 winding Methods 0.000 claims abstract description 9
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 238000001746 injection moulding Methods 0.000 claims abstract description 4
- 239000004065 semiconductor Substances 0.000 claims description 4
- 230000005669 field effect Effects 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 150000002739 metals Chemical class 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000005291 magnetic effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
Classifications
-
- 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
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/029—Composite material comprising conducting material dispersed in an elastic support or binding material
-
- 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
-
- 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
- H01H50/16—Magnetic circuit arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H2050/166—Magnetic circuit arrangements wherein the magnetic circuit parts are molded in a magnetic plastic material
-
- 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 that can be used universally, and a method for its production.
- Relays are usually composed of individual parts made of different materials. Soft magnetic iron is used for the parts of the magnetic circuit and copper-containing, electrically conductive materials for parts of the load and excitation circuit. There are also plastic parts that serve as insulating parts or as support parts. For the manufacture of such a relay, many manufacturing, assembly and connection steps are required, which require a high investment in the manufacturing resources and cause high manufacturing costs.
- the aim of the present invention is therefore to provide a relay that manages with a few individual parts, a few different materials and a few manufacturing steps. According to the invention, this is solved by a relay with: a coil former made of an insulating plastic, a core arrangement, an armature,
- One method according to the invention for producing a relay is that the following manufacturing steps are carried out:
- Adding a core arrangement and an armature adding at least one fixed contact, a movable contact and connecting elements, the elements added in the second and third production steps being applied to the molded part produced in each case in the previous step and, in addition to the coil former, at least one further one being electrical and / or magnetically conductive parts made of plastic.
- the armature, the contacts and the connection elements are also made of plastic, a ferromagnetic material also being added for the armature, and an electrically conductive material for the contacts and for the connection elements.
- a polymer is used as the plastic, for the added materials a powder, namely an iron powder, in order to obtain ferro-magnetic properties, and for example a silver powder, in order to obtain electrically conductive properties.
- connection elements which is coated with a metal layer.
- a plastic with electrically conductive properties it proves advantageous if O 00/6896
- connections are coated with metallic layers, which are produced, for example, in a galvanic process, because this improves the solderability and connectivity of the connections.
- This method can also be used for an advantageous metallic coating of the contact areas of the load circuit.
- the manufacture of a relay according to the invention is particularly simple if a multi-component injection molding process is selected as the shaping process.
- a further advantage is obtained when the armature or an armature carrier is connected to the coil body by means of a film-hinge-like spring element, because this eliminates the need for an armature return spring. This is also advantageous because the armature assembly can be folded over during the manufacture of the relay after winding a coil and can be latched with lugs on the load circuit connection elements.
- the switching path of the relay is connected in parallel with a power semiconductor which extinguishes the arc when an inductive load is switched off, while in the closed state the main current path runs over the low-resistance contacts of the relay.
- Figure 1A to 1D an inventive relay in different manufacturing phases in a perspective
- Figure 2 shows the relay body of Figure 1A in one
- Figure 3 shows the relay of Figure 1D in a longitudinal section
- Figure 4 shows another embodiment of a relay according to the invention in a perspective view.
- FIGS. 1A to 1D show the manufacture of a relay according to the invention, in that the relay is shown in different phases of manufacture.
- a coil former 1 is injection molded from an insulating plastic and has a first and a second coil former flange 2 and 3.
- An armature support 5 is molded onto the first coil former flange 2. This extends in an extension of the first coil former flange 2.
- the plastic in a second manufacturing step, the result of which is shown in FIG. IB, is filled with a ferromagnetic powder.
- the space enclosed by the coil former 1 is sprayed out with this material, so that a core 6 results.
- yoke legs 7 and an armature 14, which form a core arrangement are injection molded with this material with the core 6.
- the electrically conductive parts are molded. These consist of a plastic filled with an electrically conductive powder. This manufacturing step also takes place in the injection molding process.
- the load circuit connections 8 and the coil connections 9 are formed. In each case a section of the load circuit connections 8 forms a fixed contact 15. splashes.
- the current-carrying plastics can be chemically or galvanically coated with a metal layer on the surface.
- a coil 11 is wound on the coil former 1 and the winding ends are connected to winding connection pins 13 of the coil connections 9.
- the armature support 5 with the armature 14 and the contact bridge 10 is folded down by approximately 90 ° and locked with two edges at its free end on two locking lugs 12 which are formed on the load circuit connections 8.
- movement of the armature 14 is restricted in two directions, on the one hand by the locking lugs 12 and on the other hand by the two fixed contacts 15 formed on the load circuit connections 8.
- the locking lugs 12 are attached in such a way that the armature 14 still has sufficient scope for the armature movement during the switching process.
- the contact bridge 10 has the shape of a U, the two end legs of the U lying on the arms 17 of the anchor carrier 5 and the cross leg connecting these two arms to one another.
- FIG. 2 shows a relay according to the invention in a longitudinal section after the first production step, and can be clearly seen in FIG. 3, which shows the fully assembled relay in longitudinal section.
- FIG. 4 A further development of a relay according to the invention is shown in FIG. 4.
- an additional power transistor 18 is arranged on the second coil former flange 3 and injected for switching larger loads. It takes over the current flow of the load circuit during the opening or closing process of the relay and is connected in parallel to the switching path via the contact bridge 10.
- the power transistor 18, which can be designed, for example, as a field effect transistor, takes over the switching of the load and the contact bridge 10 takes over the low-resistance carrying of the load current in the switched-on state. This avoids damage to the contact surfaces at high switching currents, while this does not pose any danger at low switching currents.
- the heat dissipation of the power transistor 18 is advantageously carried out by directly coupling the transistor to the surface of the coil former flange 3 and the yoke leg 7.
- the core arrangement 6 consists of a metal part or contact parts made of metal are injected.
Landscapes
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Electromagnets (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
- General Factory Administration (AREA)
- Manufacturing Of Electric Cables (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19921254A DE19921254A1 (de) | 1999-05-07 | 1999-05-07 | Elektromagnetisches Relais und Verfahren zu dessen Herstellung |
| DE19921254 | 1999-05-07 | ||
| PCT/EP2000/003991 WO2000068963A1 (de) | 1999-05-07 | 2000-05-04 | Elektromagnetisches relais und verfahren zu dessen herstellung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1177565A1 true EP1177565A1 (de) | 2002-02-06 |
| EP1177565B1 EP1177565B1 (de) | 2003-07-09 |
Family
ID=7907417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00936710A Expired - Lifetime EP1177565B1 (de) | 1999-05-07 | 2000-05-04 | Elektromagnetisches relais und verfahren zu dessen herstellung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1177565B1 (de) |
| AT (1) | ATE244926T1 (de) |
| DE (2) | DE19921254A1 (de) |
| WO (1) | WO2000068963A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20100157U1 (de) | 2001-01-05 | 2001-05-17 | TRW Automotive Electronics & Components GmbH & Co.KG, 67677 Enkenbach-Alsenborn | Entlüftungsgitter für Fahrzeuge |
| DE102004013608A1 (de) * | 2004-03-19 | 2005-10-27 | Siemens Ag | Auslöserelais |
| EP2034498B1 (de) | 2007-09-04 | 2013-11-13 | Siemens Aktiengesellschaft | Elektromagnetisches Schaltgerät |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2528086A (en) * | 1946-11-08 | 1950-10-31 | Bell Telephone Labor Inc | Relay contacts of conducting rubber |
| US3784941A (en) * | 1972-03-06 | 1974-01-08 | Essex International Inc | Relay construction |
| US4044322A (en) * | 1976-07-09 | 1977-08-23 | Essex Group, Inc. | Electromagnetic solenoid relay assembly and electrical connection means therefor |
| JP2781890B2 (ja) * | 1989-05-02 | 1998-07-30 | オムロン株式会社 | 電磁継電器のベースの製造方法 |
-
1999
- 1999-05-07 DE DE19921254A patent/DE19921254A1/de not_active Ceased
-
2000
- 2000-05-04 EP EP00936710A patent/EP1177565B1/de not_active Expired - Lifetime
- 2000-05-04 WO PCT/EP2000/003991 patent/WO2000068963A1/de not_active Ceased
- 2000-05-04 AT AT00936710T patent/ATE244926T1/de not_active IP Right Cessation
- 2000-05-04 DE DE50002845T patent/DE50002845D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0068963A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000068963A1 (de) | 2000-11-16 |
| DE19921254A1 (de) | 2001-01-04 |
| EP1177565B1 (de) | 2003-07-09 |
| DE50002845D1 (de) | 2003-08-14 |
| ATE244926T1 (de) | 2003-07-15 |
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