WO1995012890A1 - Elektromechanisches bauelement, insbesondere relais, mit dichtem gehäuse - Google Patents
Elektromechanisches bauelement, insbesondere relais, mit dichtem gehäuse Download PDFInfo
- Publication number
- WO1995012890A1 WO1995012890A1 PCT/DE1994/001289 DE9401289W WO9512890A1 WO 1995012890 A1 WO1995012890 A1 WO 1995012890A1 DE 9401289 W DE9401289 W DE 9401289W WO 9512890 A1 WO9512890 A1 WO 9512890A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base
- elastomer
- component according
- sealing
- edge
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
-
- 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
- H01H2011/0081—Apparatus or processes specially adapted for the manufacture of electric switches using double shot moulding, e.g. for forming elastomeric sealing elements on form stable casing
Definitions
- Electromechanical component in particular relay, with a sealed housing
- the invention relates to an electromechanical component, in particular a relay, with a housing formed from a base and a cap, the base consisting of plastic having openings in which connection elements are anchored and sealed by insertion.
- DE 25 56 610 B2 describes a base body made of insulating material for hermetically sealable relays, a base body made of thermosetting plastic being overmolded with a jacket made of thermoplastic material.
- the connecting elements are embedded in the thermoset base body there, which already requires a complex manufacturing process.
- an additional operation is proposed there, with which the parts are to be glued or welded.
- the aim of the present invention is to design a component of the type mentioned in the introduction in such a way that sealing of the housing gaps and bushings, in particular on the connecting elements fastened by insertion, is achieved in a very simple and economical manner.
- this goal is achieved in that the base consisting of a dimensionally stable plastic at least is coated in the wall areas of the openings with a layer of a thermoplastic elastomer and that the connecting elements have a larger cross section than the remaining width of the respective opening in such a way that they are anchored in a sealing manner by insertion with a press fit.
- two plastic materials with different properties are therefore used at least for the base body or base carrying the connecting parts.
- the plastic with the higher strength for example a mineral or glass fiber reinforced thermoplastic, such as polyamide, gives the shape stability, while the second material, namely a thermoplastic elastomer, such as. B. polyurethane, the sealing function.
- the dimensionally stable plastic could also be a thermoset, but because of the more economical processing, it is more economical if two thermoplastics with different properties are used, since both materials can then be molded in succession on one and the same machine in a two-component injection molding process .
- the inventive lining of the bushings for the connection elements results in a large-area sealing over the entire bushing length.
- the seal is particularly advantageous and reliable when the elastomer layer encompasses both edges of the base openings in the manner of a spout.
- the two plastic components will more or less bond to each other at their interfaces. Since the sealing is done by a press fit, this is not even necessary. It is therefore possible to use two plastics which are compatible and which do not bond to one another during molding; this applies in particular if the elastomer is positively connected to the base or base body, for example in the manner of the grommet mentioned.
- the base or the cap is also provided with a layer of the elastomer.
- the cap can also consist of metal, in which case the sealing function between plastic and metal is effective in the same way as on the metallic connection elements.
- the cap will also be made of plastic, so that the second component made of elastomer for sealing the edge gap can be attached either to the base or to the cap.
- the seal becomes particularly reliable when the base forms a circumferential sealing edge which is covered with a U-shaped elastomer layer and engages in a circumferential groove in the cap.
- the elastomer layer can form one or more circumferential sealing ribs projecting into the edge gap.
- the elastomer coating only needs to be provided in the area of the points to be sealed, so that the elastomer need only be injected in the form of an island at these points.
- These connections can be designed in the form of webs which either lie in recessed channels in the base or can run as raised webs on the surface thereof.
- FIG. 1 shows a relay base in a view from below
- FIG. 2 shows a section II-II of the base from FIG. 1,
- FIG. 3 shows an enlarged detail III from FIG. 2,
- FIG. 4 shows a relay with a base according to FIG. 1, which is equipped with connection elements and provided with a cap,
- FIG. 5 shows a section V-V from FIG. 4,
- FIG. 6 shows an enlarged detail VI from FIG. 5.
- a relay base 1 which, together with a cap 2, forms a housing which accommodates a relay system 3, which is indicated schematically in FIG.
- This relay system 3 can be designed, for example, according to DE 34 28 595 C2.
- the base shown in Figures 1 to 3 alone has openings 4 for pins 11 (see Figure 5), which are designed in the present case as a flat connector; the bushings are accordingly rectangular.
- the base has a stepped, circumferential sealing edge 5.
- the base itself consists of a dimensionally stable plastic, for example a glass fiber reinforced polyamide.
- the inner walls 4a of the openings 4 are each covered with a layer 6 covered with an elastomer; polyurethane or a thermoplastic with similar properties can be considered as the material.
- the ends of the elastomer layer 6 each extend over the edge of the opening 4 with a widened edge 7 in the form of a grommet.
- the elastomer layer additionally forms a circumferential sealing lip 8.
- the sealing edge 5 of the base 1 is also covered with an elastomer layer 9 which surrounds the edge 5 in a U-shaped profile on three sides. Two circumferential sealing ribs 10 are also formed on this elastomer layer 9.
- FIGS. 4 to 6 show the same views as FIGS. 1 to 3, but now with the relay fully assembled, that is to say with the cap 2 in place and with the relay system 3 inserted.
- the connecting pins 11 are in the openings 4 pressed in, due to an oversize in cross-section or the width 12 of the connecting pins 11, penetration with the elastomer layer 6 takes place, which leads to a press fit and to a corresponding sealing of the connecting pins 11.
- the outwardly deformed sealing lips 8 nestle closely against the connecting pins 11.
- the sealing edge 5 engages in a circumferential groove 13 and also forms a press fit for sealing the circumferential edge gap 15.
- the sealing is thereby improved by the sealing ribs 10 acting in two mutually perpendicular directions.
- connecting webs 14 are also indicated, which arise through flow channels in the injection mold. It is therefore elastomer webs that connect the different elastomer layers 6 and 9 in the form of recessed or raised webs, so that the number of injections in the injection mold can be lower. These connecting webs 14 can run on the inside of the housing and / or on the outside of the housing of the base 1.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Casings For Electric Apparatus (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP95900056A EP0727089B1 (de) | 1993-11-03 | 1994-11-02 | Elektromechanisches bauelement, insbesondere relais, mit dichtem gehäuse |
| US08/602,811 US5699899A (en) | 1993-11-03 | 1994-11-02 | Electromechanical component, in particular a relay, having a sealed casing |
| CA002175592A CA2175592A1 (en) | 1993-11-03 | 1994-11-02 | Electromechanical component, especially relay, with sealed casing |
| CZ961215A CZ121596A3 (en) | 1993-11-03 | 1994-11-02 | Electromechanical building element, particularly a relay with a sealed cover |
| DE59402780T DE59402780D1 (de) | 1993-11-03 | 1994-11-02 | Elektromechanisches bauelement, insbesondere relais, mit dichtem gehäuse |
| JP7512956A JPH09504639A (ja) | 1993-11-03 | 1994-11-02 | 密閉ケーシングを有する例えばリレー等の電気機械式構成要素 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4337505A DE4337505C1 (de) | 1993-11-03 | 1993-11-03 | Elektromechanisches Bauelement, insbesondere Relais, mit dichtem Gehäuse |
| DEP4337505.7 | 1993-11-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1995012890A1 true WO1995012890A1 (de) | 1995-05-11 |
Family
ID=6501692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE1994/001289 Ceased WO1995012890A1 (de) | 1993-11-03 | 1994-11-02 | Elektromechanisches bauelement, insbesondere relais, mit dichtem gehäuse |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5699899A (de) |
| EP (1) | EP0727089B1 (de) |
| JP (1) | JPH09504639A (de) |
| AT (1) | ATE153175T1 (de) |
| CA (1) | CA2175592A1 (de) |
| CZ (1) | CZ121596A3 (de) |
| DE (2) | DE4337505C1 (de) |
| WO (1) | WO1995012890A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9608867A (pt) * | 1995-06-09 | 1999-06-15 | Siemens Ag | Disposição de um relé em um soquete de encaixe |
| DE29618878U1 (de) * | 1996-10-30 | 1996-12-19 | Rehau Ag + Co, 95111 Rehau | Wärmetauscher |
| DE19753364C2 (de) * | 1997-12-02 | 2001-03-29 | Legrand Gmbh | Temperaturregelvorrichtung mit einem Steuerprozessor |
| US6040539A (en) * | 1998-01-08 | 2000-03-21 | Hiegel; Todd N. | Protective cover for a computer mouse |
| JP4312350B2 (ja) | 2000-06-06 | 2009-08-12 | ウチヤ・サーモスタット株式会社 | サーマルプロテクタ |
| DE20010478U1 (de) | 2000-06-16 | 2000-10-19 | Magna Exterior Systems GmbH, 63179 Obertshausen | Befestigungselement |
| DE102007012296A1 (de) * | 2007-03-08 | 2008-09-11 | Siemens Ag | Trennschalteinrichtung sowie Verfahren zur Herstellung einer Trennschalteinrichtung |
| DE102015225099A1 (de) * | 2015-12-14 | 2017-06-14 | Robert Bosch Gmbh | Elektronikmodul, insbesondere für Getriebesteuergerät, und Verfahren zum Fertigen eines solchen |
| RU189249U1 (ru) * | 2019-03-25 | 2019-05-17 | Открытое акционерное общество "Объединенные электротехнические заводы" | Основание электромагнитного штепсельного реле железнодорожной автоматики |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2556610A1 (de) * | 1975-12-16 | 1977-06-30 | Sauer Hans | Kontakttraegeranordnung fuer ein hermetisch abdichtbares relais |
| DE2617633A1 (de) * | 1976-04-22 | 1977-11-03 | Telefonbau & Normalzeit Gmbh | Anordnung fuer elektromechanische bauteile |
| DE3208299A1 (de) * | 1981-03-25 | 1982-10-21 | Schrack Elektronik-AG, 1121 Wien | Gehaeuse fuer elektrotechnische beuteile |
| DE3640721C1 (en) * | 1986-11-28 | 1988-06-01 | Zettler Elektrotechn Alois | Mounting body for relays |
| DE4015115A1 (de) * | 1990-05-11 | 1991-11-14 | Eberle Gmbh | Elektronisches oder elektromechanisches bauelement z. b. relais |
| EP0564876A1 (de) * | 1992-04-10 | 1993-10-13 | Hella KG Hueck & Co. | Verfahren zur Abdichtung eines Gehäuses zur Aufnahme von elektrischen, elektronischen oder elektromechanischen Bauteilen. |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3323199A (en) * | 1962-12-20 | 1967-06-06 | Bell Telephone Labor Inc | Method for making electrical components |
| DE2320618A1 (de) * | 1973-04-24 | 1974-11-21 | Deutsche Fernsprecher Gmbh | Hermetisch abgedichtetes relais |
| DE3319329C2 (de) * | 1983-05-27 | 1985-05-30 | Haller-Relais GmbH, 7209 Wehingen | Relais mit waschdichter Bodenplatte |
| US4622739A (en) * | 1983-12-27 | 1986-11-18 | Texas Instruments Incorporated | Method of providing an improved seal for thermostatic switch housings |
| DE3428595A1 (de) * | 1984-08-02 | 1986-02-20 | Siemens AG, 1000 Berlin und 8000 München | Elektromagnetisches relais |
| US4780578A (en) * | 1987-12-11 | 1988-10-25 | Oak Industries, Inc. | Anerobic sealed rotary switch |
| US4975545A (en) * | 1988-07-20 | 1990-12-04 | Wickes Manufacturing Company | Sealed relay assembly |
| DE9011111U1 (de) * | 1990-07-27 | 1991-11-21 | Siemens AG, 8000 München | Gehäuse für ein elektrisches Bauelement, insbesondere ein Relais |
-
1993
- 1993-11-03 DE DE4337505A patent/DE4337505C1/de not_active Expired - Fee Related
-
1994
- 1994-11-02 WO PCT/DE1994/001289 patent/WO1995012890A1/de not_active Ceased
- 1994-11-02 CZ CZ961215A patent/CZ121596A3/cs unknown
- 1994-11-02 US US08/602,811 patent/US5699899A/en not_active Expired - Fee Related
- 1994-11-02 EP EP95900056A patent/EP0727089B1/de not_active Expired - Lifetime
- 1994-11-02 AT AT95900056T patent/ATE153175T1/de not_active IP Right Cessation
- 1994-11-02 DE DE59402780T patent/DE59402780D1/de not_active Expired - Fee Related
- 1994-11-02 JP JP7512956A patent/JPH09504639A/ja active Pending
- 1994-11-02 CA CA002175592A patent/CA2175592A1/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2556610A1 (de) * | 1975-12-16 | 1977-06-30 | Sauer Hans | Kontakttraegeranordnung fuer ein hermetisch abdichtbares relais |
| DE2617633A1 (de) * | 1976-04-22 | 1977-11-03 | Telefonbau & Normalzeit Gmbh | Anordnung fuer elektromechanische bauteile |
| DE3208299A1 (de) * | 1981-03-25 | 1982-10-21 | Schrack Elektronik-AG, 1121 Wien | Gehaeuse fuer elektrotechnische beuteile |
| DE3640721C1 (en) * | 1986-11-28 | 1988-06-01 | Zettler Elektrotechn Alois | Mounting body for relays |
| DE4015115A1 (de) * | 1990-05-11 | 1991-11-14 | Eberle Gmbh | Elektronisches oder elektromechanisches bauelement z. b. relais |
| EP0564876A1 (de) * | 1992-04-10 | 1993-10-13 | Hella KG Hueck & Co. | Verfahren zur Abdichtung eines Gehäuses zur Aufnahme von elektrischen, elektronischen oder elektromechanischen Bauteilen. |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4337505C1 (de) | 1995-03-30 |
| JPH09504639A (ja) | 1997-05-06 |
| CA2175592A1 (en) | 1995-05-11 |
| CZ121596A3 (en) | 1997-12-17 |
| EP0727089A1 (de) | 1996-08-21 |
| ATE153175T1 (de) | 1997-05-15 |
| DE59402780D1 (de) | 1997-06-19 |
| EP0727089B1 (de) | 1997-05-14 |
| US5699899A (en) | 1997-12-23 |
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