WO1998034303A1 - Kontaktschutzgehäuse für einen elektrischen anschluss - Google Patents
Kontaktschutzgehäuse für einen elektrischen anschluss Download PDFInfo
- Publication number
- WO1998034303A1 WO1998034303A1 PCT/DE1998/000227 DE9800227W WO9834303A1 WO 1998034303 A1 WO1998034303 A1 WO 1998034303A1 DE 9800227 W DE9800227 W DE 9800227W WO 9834303 A1 WO9834303 A1 WO 9834303A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- contact protection
- protection housing
- housing part
- contact
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
Definitions
- the invention relates to a contact protection housing for an electrical connection, the contacts being located in at least one housing filled with potting compound.
- potting compound for sealing electrical plug connections, solder connections or the like.
- Reactive 1- or 2-component adhesives / sealants which cure at room temperature or elevated temperature are preferably used as the potting compound. Processing is usually carried out under atmospheric pressure.
- a contact protection housing of the type mentioned at the outset is designed in the manner of a chamber, the contacting zone being located within the chamber, in particular in the form of a trough.
- contact lugs are connected to strands, in particular soldered or welded.
- the sealing compound is poured into liquid form filled into the chamber from above, which distributes and hardens under the influence of gravity.
- the disadvantage here is that, depending on the contour of the chamber, which may be predetermined by certain parameters, and depending on the formation of the contact zone, there may be undercuts and cavities into which the casting compound does not fully enter during its curing process, so that air pockets are formed which protect the protective function of the Question shedding.
- the contact protection housing according to the invention due to its formation of at least two lost housing parts assembled into a closed form, ensures that the contact protection area is preferably completely enclosed, at least one of the housing parts having a casting compound filling channel formed by material cutout.
- This is preferably designed such that, during the filling process, the potting compound reaches the interior of the contact protection housing in a targeted manner in the desired area or areas and / or, due to the closed contact protection housing, the potting compound can be introduced at a pressure above atmospheric pressure. This always guarantees Continues that no undesirable void formation occurs.
- the potting compound filling channel formed in the contact protection housing preferably opens into an injection mold sealing funnel on the outside of the housing. This is used to couple a molding tool for feeding the potting compound.
- the injection mold and the sealing funnel form a tight and secure connection for the time of the encapsulation process. This ensures that liquid potting compound that is introduced into the contact protection housing cannot escape at the contact point between the injection tool and the sealing funnel.
- This simple contacting of the injection mold and the contact protection housing to be filled makes it particularly suitable for line production.
- the injection molding device sealing funnel is preferably designed in such a way that it projects beyond a contact protection housing side, in particular being attached to it via a predetermined breaking point. This has the advantage that the sealing funnel can be easily removed after the casting process has taken place and the casting compound has hardened. For example, this can shorten the manufacturing time for series production.
- the contact protection housing consists of at least two assembled housing parts, making sure that the potting compound is introduced, particularly under pressure, to ensure a tight fit.
- the introduced seal not only prevents leakage of liquid or not yet hardened casting compound, but also has the property of being gas-permeable. This accelerates the escape of the air displaced by the potting compound, so that the safety of a void-free potting is increased.
- FIG. 1 shows a top view of a contact protection housing in the open state
- FIG. 2 shows a side view of the contact protection housing according to FIG. 1, but in the closed state
- Figure 3 is a plan view of a housing part of the contact protection housing and FIG. 4 shows a sectional view along the line IV-IV in FIG. 3.
- FIG. 1 shows a contact protection housing 1, of which only the part relevant to the invention is shown (demolition lines 2).
- the contact protection housing 1 has a first housing part 3 and a second housing part 4 (FIG. 2).
- the first housing part 3 forms a base part 5, to which the second housing part, which virtually forms a cover 6, can be fed, the parting line 8 indicated by dotted line 7 in FIG. 2 being established between the two housing parts 3 and 4.
- the cover 6 closes the connection chamber 9, which are filled with a casting compound 11 to protect the contacts 10-.
- the contacts 10 are thus embedded in the sealing compound 11 and are protected against environmental influences.
- the connection chamber 9 of the first housing part 3 has, for example, an essentially rectangular plan (FIG. 1).
- the contacts 10 belonging, by suitable means fixedly positioned contact tongues 12, which lead to electrical devices not shown here, for example to a pedal value transmitter, an operating brake valve or a pump control unit of a motor vehicle.
- this electrical / electronic device electrically, for example to a wiring harness of a motor vehicle, it is necessary to bring the electrical lines of the wiring harness into contact with the contact tongues 12.
- the line holders 13 and 14 are preferably designed as plastic parts which have line channels 15. Electrical lines 16 are introduced into the line channels 15, that is to say they are held in the desired position.
- guide means 17 are provided, which are designed, for example, as groove / projection guides, so that the line holder 13 and 14 inserted into the housing part 3 reach a position defined for the connection chamber 9.
- the electrical lines 16 have strands 18 as conductors which, when the line holders 13 and 14 are in the inserted position, pass into the housing part 3 opposite to the contact tongues 12.
- fastening screws 19 are provided which pass through the through bores 20 of the line holders 13 and 14 and in threaded holes. gene 21 of the housing part 3 are screwed.
- the strands 18 are contacted with the associated contact tongues 12 by means of a suitable electrical connection method, for example by means of a soldering process, welding process or the like.
- the housing part 4 forming the cover 6 can be seen in FIGS. 2, 3 and 4. It has a step-shaped recess 23 on its inside 22, the contour of which is essentially adapted to the layout of the connection chamber 9.
- a potting compound filling channel 25 opens into the bottom 24 of the recess 23 and extends in the form of an injection mold sealing funnel 26 up to the top 27 of the cover 6.
- a seal 28 Arranged within the recess 23 is a seal 28 which, as shown in FIG. 3, is self-contained, this closed contour surrounding the connection chamber 9 in the assembled state of the housing parts 3 and 4. It can be seen from FIG. 3 that the seal 28 is designed such that it also encloses the heads of the fastening screws 19.
- the potting compound 11 is located within the connecting chamber 9 and the recess 23, that is to say the electrical connection of the strands 18 to the contact tongues 12 is embedded in the potting compound 11 and is therefore protected from environmental influences.
- the assembly of the contact protective housing according to the invention is carried out as follows: First, the electrical lines 16 are introduced into the line holders 13, 14. The line holders 13, 14 equipped in this way are then inserted into the housing part 3 and fixed by means of the fastening screws 19. The strands 18 are then electrically connected to the contact tongues 12. Then the cover 6 is assigned to the housing part 3, so that the position shown in FIG. 2 is established.
- Both housing parts 3, 4 are connected to one another by means of suitable fastening means, for example threaded screws are used (not shown).
- suitable fastening means for example threaded screws are used (not shown).
- a suitably designed injection mold is then fed to the injection mold sealing funnel 26 and potting compound is injected into the connection chamber 9 and the recess 23, so that the entire interior and thus the contact zone is filled by the potting compound 11.
- Possible air or gas inclusions are avoided because, as mentioned, the seal 28 allows these gas inclusions to pass outside.
- the potting compound 11, which has not yet hardened or has not yet solidified, is replaced by the Seal 28 retained.
- the injection molding can be carried out by means of overpressure, that is to say a pressure which is higher than the atmosphere.
- Thermoplastic hot-melt adhesives or mixtures of materials containing such hot-melt adhesives are used in particular as casting compound 11.
- the processing temperature depends on the hot melt adhesive material and is preferably in the range between 180 ° C and 230 ° C. Due to the filling process using overpressure, the filling speed can be optimized with void-free filling. The filling pressure is preferably present until the melt solidifies and is in particular in the range between 5 and 50 bar. After solidification, the injection mold is removed from the injection mold sealing funnel 26.
- the potting compound filling channel 25 formed uniformly of material, that is to say through a material recess, extends up to the top 27 of the housing part 4 and that - starting from this - the injection mold sealing funnel 26 extends the contact protection housing side 29 ( Figure 4) protrudes outwards.
- the contact protection housing side 29 ( Figure 4) protrudes outwards.
- the invention is not limited to the fact that only one casting compound filling channel 25 is provided in the cover 6, but there can also be several such channels and it is also possible that only such channels in the housing part 3 or channels both in the Housing part 3 as well as in the housing part 4 are provided.
- the invention makes it possible to manufacture in a production line without waiting times. No ovens or buffer zones are required, as is the case with 1- or 2-component reactive resins, so that simple and inexpensive production with reliable contact protection is ensured.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53244098A JP2001509308A (ja) | 1997-01-31 | 1998-01-26 | 電気的な接続部のための接触器保護ケーシング |
DE59804509T DE59804509D1 (de) | 1997-01-31 | 1998-01-26 | Kontaktschutzgehäuse für einen elektrischen anschluss |
US09/355,666 US6291787B1 (en) | 1997-01-31 | 1998-01-26 | Contact protection housing for an electrical connection |
EP98909281A EP0956622B1 (de) | 1997-01-31 | 1998-01-26 | Kontaktschutzgehäuse für einen elektrischen anschluss |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19703686.4 | 1997-01-31 | ||
DE19703686A DE19703686C2 (de) | 1997-01-31 | 1997-01-31 | Kontaktschutzgehäuse für einen elektrischen Anschluß |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998034303A1 true WO1998034303A1 (de) | 1998-08-06 |
Family
ID=7818963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/000227 WO1998034303A1 (de) | 1997-01-31 | 1998-01-26 | Kontaktschutzgehäuse für einen elektrischen anschluss |
Country Status (6)
Country | Link |
---|---|
US (1) | US6291787B1 (de) |
EP (1) | EP0956622B1 (de) |
JP (1) | JP2001509308A (de) |
DE (2) | DE19703686C2 (de) |
ES (1) | ES2179469T3 (de) |
WO (1) | WO1998034303A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19963933A1 (de) * | 1999-12-31 | 2001-07-12 | Bosch Gmbh Robert | Kontaktschutzgehäuse, Einspritzpumpe und Verfahren zum Montieren eines Kontaktschutzgehäuses mit Hilfe eines Adapters |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3014333A1 (de) * | 1980-04-15 | 1981-10-22 | Stahl R Schaltgeraete Gmbh | Verfahren zum teilweisen vergiessen von bauelementen und mehrteiliges gehaeuse zur durchfuehrung des verfahrens |
GB2204194A (en) * | 1987-04-30 | 1988-11-02 | Amp Inc | Sealed electrical connector |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3555215A (en) * | 1969-06-06 | 1971-01-12 | Allen Bradley Co | Modular limit switch |
DE7929603U1 (de) * | 1979-10-19 | 1982-12-02 | Robert Bosch Gmbh, 7000 Stuttgart | Elektrisches Gerät, vorzugsweise Relais für Kraftfahrzeue |
DE8900466U1 (de) * | 1989-01-17 | 1989-03-02 | Siemens AG, 1000 Berlin und 8000 München | Gehäuse für ein elektromechanisches Bauelement, insbesondere für ein Relais |
DE9206130U1 (de) * | 1992-05-07 | 1992-07-16 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | HF-dichtes Gehäuse |
-
1997
- 1997-01-31 DE DE19703686A patent/DE19703686C2/de not_active Expired - Fee Related
-
1998
- 1998-01-26 JP JP53244098A patent/JP2001509308A/ja active Pending
- 1998-01-26 WO PCT/DE1998/000227 patent/WO1998034303A1/de active IP Right Grant
- 1998-01-26 DE DE59804509T patent/DE59804509D1/de not_active Expired - Fee Related
- 1998-01-26 US US09/355,666 patent/US6291787B1/en not_active Expired - Fee Related
- 1998-01-26 ES ES98909281T patent/ES2179469T3/es not_active Expired - Lifetime
- 1998-01-26 EP EP98909281A patent/EP0956622B1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3014333A1 (de) * | 1980-04-15 | 1981-10-22 | Stahl R Schaltgeraete Gmbh | Verfahren zum teilweisen vergiessen von bauelementen und mehrteiliges gehaeuse zur durchfuehrung des verfahrens |
GB2204194A (en) * | 1987-04-30 | 1988-11-02 | Amp Inc | Sealed electrical connector |
Also Published As
Publication number | Publication date |
---|---|
DE19703686C2 (de) | 1999-04-29 |
US6291787B1 (en) | 2001-09-18 |
DE59804509D1 (de) | 2002-07-25 |
DE19703686A1 (de) | 1998-08-06 |
EP0956622A1 (de) | 1999-11-17 |
ES2179469T3 (es) | 2003-01-16 |
EP0956622B1 (de) | 2002-06-19 |
JP2001509308A (ja) | 2001-07-10 |
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