EP3364504B1 - Round plug connector - Google Patents
Round plug connector Download PDFInfo
- Publication number
- EP3364504B1 EP3364504B1 EP18020066.9A EP18020066A EP3364504B1 EP 3364504 B1 EP3364504 B1 EP 3364504B1 EP 18020066 A EP18020066 A EP 18020066A EP 3364504 B1 EP3364504 B1 EP 3364504B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plug connector
- round plug
- section
- sleeve
- insulating
- 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.)
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- 239000002184 metal Substances 0.000 claims description 5
- 239000002360 explosive Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000004382 potting Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000002241 glass-ceramic Substances 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 241001295925 Gegenes Species 0.000 description 1
- 241000233805 Phoenix Species 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
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
- H01R13/527—Flameproof cases
-
- 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
- H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
Definitions
- the present invention relates to a circular connector in which an air and creepage distance of at least 2 mm is formed to achieve a high protection class for potentially explosive areas.
- Circular connectors for potentially explosive areas are known per se from the prior art.
- minimum values for air and creepage distances between intrinsically safe circuits and grounded metal parts are required for device protection through intrinsic safety.
- an air and creepage distance of at least 2.0 mm applies to the protection levels "ia” and "ib" at voltage values below 30 V (cf. IEC 60079-11, Chapter 6.3.1.1, Table 5).
- IEC 60079 specifies the design and testing of intrinsically safe equipment intended for use in potentially explosive atmospheres and related equipment intended for connection to intrinsically safe circuits that lead into such atmospheres.
- IEC 61076 describes M12 circular connectors that are used industrially for process control. These circular connectors consist of fixed, free connectors with a screw fastening. The male connectors typically have round contacts with diameters of 0.6 mm, 0.76 mm, 0.8 mm and 1.0 mm.
- connectors with the dimension M12 are generally not used in applications in potentially explosive areas. Rather, either physically larger plugs (e.g. MILC-5015 or MIL-DTL-5015) are used, which have a corresponding clearance and creepage distance, or a plug connection is completely omitted and the connection of the corresponding cable is realized directly in the device .
- physically larger plugs e.g. MILC-5015 or MIL-DTL-5015
- connectors with size M12 or smaller which are a standard for data and signal transmission as well as power supply, is therefore often restricted to areas that are not at risk of explosion.
- this prevents the inexpensive use of standardized cables for connecting technical devices.
- M12 connectors with so-called S-coding e.g. from Phoenix Contact or Escha
- S-coding e.g. from Phoenix Contact or Escha
- M12 connectors with so-called S-coding which have the necessary clearances and creepage distances, but at a maximum application temperature of 90 ° C these can at most Achieve protection class IP69K.
- this protection class is not sufficient for many applications in the field of sensors and automation.
- US 3 146 054 A mentions a circular connector with a housing which has a sleeve section and a base section, and with a sleeve which has a coding means and is positively positioned in the sleeve section, the housing having a recess for a sealing ring in a transition region between the sleeve section and the base section, which forms an annulus by positioning the sleeve.
- the present invention is based on the technical problem of modifying connectors of the type mentioned at the outset in a simple and cost-effective manner in such a way that an air and creepage distance of at least 2 mm is maintained, and thus the protection levels "ia” and "ib" in the hazardous area (IEC 60079-11) can be reached.
- a first aspect of the present invention relates to a circular connector (1), which first comprises a housing (101) with a sleeve section (1011) and a base section (1013).
- Preferred materials for the housing (101) are, for example, stainless steel 1.4404.
- At least one current-carrying contact pin (103) is guided through the base section (1013) and protrudes freely into the sleeve section (1011).
- This at least one contact pin (103) represents the male part of the circular connector (1), which is designed to be received in the female part of an (external) cable to be connected.
- Preferably two or more contact pins (103) are provided.
- the circular connector (1) further comprises an insulating element (105) in the base section (1013), which positively isolates the at least one current-carrying contact pin (103) from the base section (1013) and positions it in the base section (1013).
- the insulating element (105) is preferably formed from a glass-like material. According to the invention, glass, glass ceramic or ceramic are used in particular. This makes the hermetic seal possible.
- the expression "positively rigid insulated” means that the insulating element (105) completely surrounds the at least one current-carrying contact pin (103) and closes without gaps with the base section (1013).
- the circular connector (1) comprises an insulating sleeve (107), which is positioned in a form-fitting manner in the sleeve section (1011) and connects with its end to the base section (1013).
- the insulating sleeve (107) provides additional insulation between the sleeve section (1011) and the at least one current-carrying contact pin (103).
- Preferred materials for the insulating sleeve (107) are polyether ether ketone (PEEK), polytetrafluoroethylene (PTFE; "Teflon”), silicones or other temperature-stable plastics. Alternatively, ceramic materials can also be used.
- the expression “positively positioned” means that the insulating sleeve (107) terminates seamlessly with the sleeve section (1011).
- the circular connector (1) is characterized in that the housing (101) has a recess (1015) in a transition region between the sleeve section (1011) and the base section (1013), which forms an annular space through the positioning of the insulating sleeve (107), so that an air and creepage distance (3) of at least 2 mm is formed between the at least one current-carrying contact pin (103) and the sleeve section (1011) due to the positioning of the insulating sleeve (107).
- the recess (1015) provided according to the invention is filled with air and, together with the additionally provided insulating sleeve (107), forms the necessary structural requirements for the clearance and creepage distance of at least 2 mm. This clearance and creepage distance is required to meet the insulation distances according to IEC 60079-11 (explosion protection).
- air-filled means that the recess (1015) provided according to the invention is not provided with a material or element, for example a seal, but remains empty and is therefore filled with the surrounding atmosphere, ie air.
- the housing (101) has an inner diameter which is enlarged compared to the sleeve section (1011) and in which the insulating element (105) is arranged essentially flush with the rear surface of the circular connector (1). This is not formed up to the sleeve section (1011), but leaves a free space open, which is delimited on two sides by the housing (101) and on one side by the insulating element (105). This free space is then at least partially closed on its fourth side by introducing the insulating sleeve (107) into the housing (101) and forms the recess (1015) according to the invention.
- the phrase "at least partially” means that the insulating sleeve (107) is not necessarily inserted into the sleeve section (1011) until it lies against the insulating element (105).
- the insulating sleeve (107) will generally not touch the insulating element (105). Rather, an air gap is generally formed between the insulating sleeve (107) and the insulating element (105), but this can be very small.
- the circular connector (1) according to the invention represents a hermetically sealed connector housing (male side) which, through the constructional measures according to the invention, in particular through the provision of the insulating sleeve (107) and the annular recess (1015), the approval for use in potentially explosive areas ( Protection levels "ia” and "ib") reached.
- protection levels "ia” and "ib" Protection levels "ia" and "ib"
- M12 the dimension of the dimension M12
- the circular connector (1) according to the invention can be used to use M12 and smaller connectors in explosion-protected areas.
- the circular connector (1) according to the invention has the further advantage that the potting (or bonding) according to the invention, which is filled with air, means that such a potting (or bonding) can be dispensed with.
- the circular connector (1) according to the invention no longer has to prove that the potting is free of voids and that the adhesive surface forms an intimate connection between the insulating sleeve and the insulating element, so that the desired clearance and creepage distance of at least 2 mm is ensured.
- the clearance and creepage distance (3) has a rectilinear portion (3d) and / or an angled portion (3a, 3b, 3c), each of which is at least 2 mm.
- the second angled portion (3b) runs between the insulating element (105) and the interior of the insulating sleeve (107).
- the insulating sleeve (107) does not touch the insulating element (105), so that an air gap is created between them.
- the second angled portion (3b) runs as an air gap through the interior of the insulating sleeve (107).
- the second angled portion (3b) runs as a creepage distance between them along the insulating element (105).
- the third angled portion (3c) runs between the insulating element (105) and the insulating sleeve (107) as a creepage distance. This creepage distance runs only in the relatively small area, which corresponds to the thickness of the insulating sleeve (107).
- the sum of the angular portion (3a, 3b, 3c) is greater than / equal to 2 mm.
- the insulating element (105) is a glass-metal bushing, so that the circular connector (1) is hermetically sealed. Together with the base section (1013) and the at least one current-carrying contact pin (103), the insulating element (105) is a glass-metal composite. In addition to being hermetically sealed, the insulating element (105) is also chemically resistant and temperature-stable.
- the invention provides that the operating temperature of the circular connector (1) is -55 ° C. to 260 ° C. This comparatively high operating temperature is achieved through the selection of the material for the insulating sleeve (107), for example PTFE, polyimide or silicones. It is preferred according to the invention if the operating temperature of the circular connector (1) is - 55 ° C to 180 ° C, in particular up to 150 ° C.
- the circular connector (1) according to the invention corresponds to the dimensions for M12 connectors, particularly preferably dimensions for M12 connectors and smaller.
- M16 With larger connectors such as M16, an air and creepage distance of 2 mm is basically known and can be achieved trivially. With smaller dimensions like M8 there is a significantly higher effort to achieve an air and Creepage distance of 2 mm is necessary, but in principle possible with the measures according to the invention.
- the circular connector (1) forms the male part of a circular connector and can be positively and / or non-positively connected to a female part of an M12 circular connector.
- Such female parts are known as female circular connectors (5) from the prior art and form standardized standard connections in many areas of electronics.
- the (male) circular connector (1) according to the invention can thus be used universally with commercially available (female) connections.
- the invention is independent of the connector coding used or the number of poles.
- the base section (1013) of the circular connector (1) according to the invention is flange-shaped, so that it can be mechanically connected to housings of devices in a simple manner.
- the circular connector (1) according to the invention is part of a vibration sensor.
- the advantage here is that the use of the circular connector (1) according to the invention creates a cost-effective way of using M12 connectors even in potentially explosive areas.
- the circular connector 1 is shown in one embodiment of the invention with four current-carrying contact pins 103, only three current-carrying contact pins 103 being recognizable by the illustration.
- the housing 101 is divided into a sleeve section 1011 and a base section 1013, the sleeve section being directed in the direction of a female plug connector 5 to be connected and surrounding the contact pins 103 protruding freely into it in a protective manner.
- the base section 1013 forms the base of the circular connector 1 and can, for example, be glued or welded on the device side or alternatively have a cable connection.
- the current-carrying contact pins 103 are insulated from the base section 1013 by the insulating element 105. At the same time, the insulating element 105 takes over the exact positioning of the contact pins 103 within the circular connector 1.
- the insulating element 105 is preferably made of a glass or a glass-ceramic.
- an insulating sleeve 107 is introduced into the sleeve section 1011, which protrudes in the interior of the housing 101 up to the base section 1013, but does not necessarily have to terminate with the latter.
- a recess (area with a larger inner diameter) is provided within the base section 1013 and, together with the insulating element 105, forms the basis for the recess 1015 according to the invention.
- the recess 1015 according to the invention is formed when the insulating sleeve 107 is inserted into the sleeve section 1011 and thus at least partially forms the fourth side of the recess 1015. As already described above, this recess 1015 is filled with air.
- a straight-line clearance and creepage distance 3d is formed in a direct line between the contact pin 103 and the base section 1013, and can take up a sufficiently large creepage distance of at least 2 mm due to the available installation space at the base of the circular connector 1.
- the contact pins 103 are less than 2 mm away from the plug housing, which is often made of metal, due to the spatial constriction.
- the required clearance and creepage distance of 2 mm is therefore not reached with plug connections (eg from M12) according to the state of the art.
- the clearance and creepage distance is designed as an alternative to the straight-line clearance and creepage distance 3d as an angled portion 3a, 3b, 3c.
- Figure 3 is the area around the recess 1015 according to the invention in greater detail (from Figure 1 ) to represent the angular portion 3a, 3b, 3c of the clearances and creepage distances.
- the second angled portion 3b (shown here in dashed lines) runs between the insulating element 105 and the insulating sleeve 107 either as a creepage distance when the insulating sleeve 107 and the insulating element 105 touch, or as an air gap when the insulating sleeve 107 and the insulating element 105 do not touch.
- the third angled portion 3c (shown here with dots), which runs as a creepage distance between the insulating element 105 and the insulating sleeve 107.
- the first angled portion 3a adjoins more or less at a right angle (shown here in dash-dot lines).
- This first angled portion 3a is shown in FIG Figure 3 an air gap from the insulating sleeve 107 through the recess 1015 to the housing 101, wherein the insulating sleeve 107 and the housing 101 do not touch.
- the sum of the three angular portions 3a, 3b, 3c is at least 2 mm, so that the required clearance and creepage distance is maintained.
- Figure 4 represents an insulating sleeve 107 in plan view and in section along the line A - A.
- the insulating sleeve 107 has at one end a projection 1071 which rests on the free end of the sleeve section 1011 and supports this against a section 501 of a female connector 5 and isolated at the same time.
- Figure 5 represents a conventional female connector 5. It has a base body which in its front part has a section 501 with a reduced diameter, which corresponds to the inside diameter of the circular connector 1 according to the invention, that is to say the inside diameter of the insulating sleeve 107.
- a clamp fit is first achieved between the female connector 5 and the circular connector 1 according to the invention, which is then secured in the inserted state by an M12 union nut.
- the current-carrying contact pins 103 of the circular connector 1 according to the invention rest in corresponding receiving sleeves 503 in the female connector 5, to which cable connections are connected.
- the female connector 5 is usually connected to a corresponding cable.
- Figure 6 is shown in section the inserted state between the circular connector 1 of the invention and the conventional female connector 5 according to the prior art
- the circular connector 1 according to the invention has been described in particular in relation to the dimension M12 in a four-pole version.
- the principle according to the invention of expanding the clearance and creepage distance 3 is independent of the number of poles and independent of the connector coding and can be extended to other connector dimensions and other geometrical arrangements.
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Description
Die vorliegende Erfindung bezieht sich auf einen Rundsteckverbinder, bei dem zum Erreichen einer hohen Schutzklasse für explosionsgefährdete Bereiche eine Luft- und Kriechstrecke von mindestens 2 mm ausgebildet ist.The present invention relates to a circular connector in which an air and creepage distance of at least 2 mm is formed to achieve a high protection class for potentially explosive areas.
Rundsteckverbinder für explosionsgefährdete Bereiche sind aus dem Stand der Technik an sich bekannt. Für den Einsatz in explosionsgefährdeten Bereichen (vgl. IEC 60079-11) werden für den Geräteschutz durch Eigensicherheit Mindestwerte für Luft- und Kriechstrecken zwischen eigensicheren Stromkreisen und geerdeten Metallteilen verlangt. So gilt beispielsweise für die Schutzniveaus "ia" und "ib" bei Spannungswerten unter 30 V eine Luft- und Kriechstrecke von mindestens 2,0 mm (vgl. IEC 60079-11, Kapitel 6.3.1.1, Tabelle 5). In IEC 60079 wird die Bestimmung für die Konstruktion und Prüfung eigensicherer Betriebsmittel, die für die Verwendung in explosionsfähigen Atmosphären bestimmt sind, sowie für zugehörige Betriebsmittel festgelegt, die für den Anschluss an eigensichere Stromkreise, die in solche Atmosphären hineinführen, vorgesehen sind.Circular connectors for potentially explosive areas are known per se from the prior art. For use in potentially explosive atmospheres (see IEC 60079-11), minimum values for air and creepage distances between intrinsically safe circuits and grounded metal parts are required for device protection through intrinsic safety. For example, an air and creepage distance of at least 2.0 mm applies to the protection levels "ia" and "ib" at voltage values below 30 V (cf. IEC 60079-11, Chapter 6.3.1.1, Table 5). IEC 60079 specifies the design and testing of intrinsically safe equipment intended for use in potentially explosive atmospheres and related equipment intended for connection to intrinsically safe circuits that lead into such atmospheres.
Bei Steckverbindern mit dem Maß M12 (vgl. IEC 61076-2-101) und kleiner liegen die Pole (Pins) weniger als 2 mm von dem Steckergehäuse entfernt, so dass die vorstehend genannte Norm nicht eingehalten werden kann und zusätzliche Maßnahmen zum Erreichen der geforderten Luft- und Kriechstrecke erforderlich sind, sobald als Material für das Gehäuse bzw. das Gewinde Metall zum Einsatz kommt. IEC 61076 beschreibt M12 Rundsteckverbinder, die industriell für die Prozesskontrolle verwendet werden. Diese Rundsteckverbinder bestehen aus fixierten, freien Verbindern mit einer Schraubbefestigung. Die männlichen Verbinder haben typischerweise runde Kontakte mit Durchmessern von 0,6 mm, 0,76 mm, 0,8 mm und 1,0 mm.For connectors with the dimension M12 (see IEC 61076-2-101) and smaller, the poles (pins) are less than 2 mm away from the connector housing, so that the above-mentioned standard cannot be met and additional measures to achieve the required Clearances and creepage distances are required as soon as metal is used as the material for the housing or the thread. IEC 61076 describes M12 circular connectors that are used industrially for process control. These circular connectors consist of fixed, free connectors with a screw fastening. The male connectors typically have round contacts with diameters of 0.6 mm, 0.76 mm, 0.8 mm and 1.0 mm.
Nach dem Stand der Technik werden in der Regel bei Anwendungen in explosionsgefährdeten Bereichen Steckverbinder mit dem Maß M12 nicht eingesetzt. Vielmehr werden entweder physikalisch größere Stecker (z.B. MILC-5015, bzw. MIL-DTL-5015) verwendet, die eine entsprechende Luft- und Kriechstrecke aufweisen, oder es wird auf eine Steckverbindung komplett verzichtet und die Anbindung des entsprechenden Kabels direkt in der Vorrichtung realisiert.According to the state of the art, connectors with the dimension M12 are generally not used in applications in potentially explosive areas. Rather, either physically larger plugs (e.g. MILC-5015 or MIL-DTL-5015) are used, which have a corresponding clearance and creepage distance, or a plug connection is completely omitted and the connection of the corresponding cable is realized directly in the device .
Ferner ist ein Sensor der Firma Meggitt Sensing Systems bekannt, der eine M12 Verbindung und Ex-Zulassung aufweist (MEGGIT 786-500-M12-IS). Die Trennabstände und Kriechstrecken werden bei diesem Sensor offensichtlich durch einen Verguss und/oder feste Isolierung auf 0,5 mm bzw. 0,7 mm reduziert. Der große Nachteil bei der Realisierung mit Hilfe von Verguss ist, dass jedes gefertigte Teil einer Stückprüfung unterzogen werden muss, das ist aufwendig und damit teuer.Furthermore, a sensor from Meggitt Sensing Systems is known which has an M12 connection and Ex approval (MEGGIT 786-500-M12-IS). With this sensor, the separation distances and creepage distances are obviously reduced to 0.5 mm or 0.7 mm by potting and / or solid insulation. The big disadvantage of realizing with the help of potting is that every manufactured part has to undergo a routine test, which is complex and therefore expensive.
Der Einsatz von Steckverbindern mit dem Maß M12 oder kleiner, die einen Standard für die Daten- und Signalübertragung sowie der Leistungsversorgung darstellen, wird daher häufig auf Bereiche beschränkt, die nicht explosionsgefährdet sind. Damit wird jedoch die kostengünstige Verwendung von genormten Kabeln zum Anschluss technischer Geräte verhindert.The use of connectors with size M12 or smaller, which are a standard for data and signal transmission as well as power supply, is therefore often restricted to areas that are not at risk of explosion. However, this prevents the inexpensive use of standardized cables for connecting technical devices.
Aus dem Stand der Technik sind darüber hinaus Stecker im Maß M12 mit sogenannter S-Kodierung bekannt (z.B. der Firmen Phönix Contact oder Escha), welche die nötigen Luft- und Kriechstrecken aufweisen, allerdings können diese bei einer maximalen Anwendungstemperatur von 90 °C höchstens die Schutzklasse IP69K erreichen. Diese Schutzklasse ist jedoch für viele Anwendungen aus dem Bereich der Sensorik und Automatisierung nicht ausreichend.In addition, M12 connectors with so-called S-coding (e.g. from Phoenix Contact or Escha) are known from the prior art, which have the necessary clearances and creepage distances, but at a maximum application temperature of 90 ° C these can at most Achieve protection class IP69K. However, this protection class is not sufficient for many applications in the field of sensors and automation.
Angesichts der Nachteile des Standes der Technik liegt der vorliegenden Erfindung die technische Aufgabe zugrunde, Steckverbinder der eingangs genannten Art in einfacher Weise und kostengünstig so zu modifizieren, dass eine Luft- und Kriechstrecke von mindestens 2 mm eingehalten wird und dadurch die Schutzniveaus "ia" und "ib" im explosionsgefährdeten Bereich (IEC 60079-11) erreichbar sind.In view of the disadvantages of the prior art, the present invention is based on the technical problem of modifying connectors of the type mentioned at the outset in a simple and cost-effective manner in such a way that an air and creepage distance of at least 2 mm is maintained, and thus the protection levels "ia" and "ib" in the hazardous area (IEC 60079-11) can be reached.
Diese Aufgabe wird in der vorliegenden Erfindung durch einen Rundsteckverbinder (1) gelöst, umfassend
- ein Gehäuse (101) mit einem Hülsenabschnitt (1011) und einem Sockelabschnitt (1013),
- zumindest einen durch den Sockelabschnitt (1013) geführten stromführenden Kontaktstift (103), der frei in den Hülsenabschnitt (1011) hineinragt,
- ein Isolierelement (105) in dem Sockelabschnitt (1013), das den zumindest einen stromführenden Kontaktstift (103) formschlüssig gegen den Sockelabschnitt (1013) isoliert und in dem Sockelabschnitt (1013) positioniert, und
- eine Isolierhülse (107), die formschlüssig in dem Hülsenabschnitt (1011) positioniert ist,
dadurch gekennzeichnet, dass das Gehäuse (101) in einem Übergangsbereich zwischen Hülsenabschnitt (1011) und Sockelabschnitt (1013) eine Ausnehmung (1015) aufweist, die durch die Positionierung der Isolierhülse (107) einen Ringraum bildet, so dass zwischen dem zumindest einen stromführenden Kontaktstift (103) und dem Hülsenabschnitt (1011) durch die Positionierung der Isolierhülse (107) eine Luft- und Kriechstrecke (3) von mindestens 2 mm ausgebildet ist.
- a housing (101) with a sleeve section (1011) and a base section (1013),
- at least one current-carrying contact pin (103) which is guided through the base section (1013) and projects freely into the sleeve section (1011),
- an insulating element (105) in the base section (1013) which positively isolates the at least one current-carrying contact pin (103) from the base section (1013) and positions it in the base section (1013), and
- an insulating sleeve (107) which is positively positioned in the sleeve section (1011),
characterized in that the housing (101) has a recess (1015) in a transition region between the sleeve section (1011) and the base section (1013), which forms an annular space due to the positioning of the insulating sleeve (107), so that between the at least one current-carrying contact pin (103) and the sleeve section (1011) an air and creepage distance (3) of at least 2 mm is formed by the positioning of the insulating sleeve (107).
Durch die Modifikation eines gattungsgemäßen Rundsteckverbinders mit den erfindungsgemäßen Maßnahmen ist es möglich, eine Luft- und Kriechstrecke (3) von mindestens 2 mm auszubilden und gleichzeitig eine hermetisch dichte Durchführung für den Einsatz des Rundsteckverbinders (1) in explosionsgefährdeten Bereichen zu realisieren.By modifying a generic circular connector with the measures according to the invention, it is possible to form an air and creepage distance (3) of at least 2 mm and at the same time to implement a hermetically sealed bushing for the use of the circular connector (1) in potentially explosive areas.
Nachfolgend wird die Erfindung im Detail beschrieben.The invention is described in detail below.
Ein erster Aspekt der vorliegenden Erfindung bezieht sich auf einen Rundsteckverbinder (1), der zunächst ein Gehäuse (101) mit einem Hülsenabschnitt (1011) und einen Sockelabschnitt (1013) umfasst. Bevorzugte Materialien für das Gehäuse (101) sind beispielsweise Edelstahl 1.4404.A first aspect of the present invention relates to a circular connector (1), which first comprises a housing (101) with a sleeve section (1011) and a base section (1013). Preferred materials for the housing (101) are, for example, stainless steel 1.4404.
Durch den Sockelabschnitt (1013) wird zumindest ein stromführender Kontaktstift (103) geführt, der frei in den Hülsenabschnitt (1011) hinein ragt. Dieser zumindest eine Kontaktstift (103) stellt den männlichen Teil des Rundsteckverbinders (1) dar, der zur Aufnahme in den weiblichen Teil eines anzuschließenden (externen) Kabels ausgelegt ist. Vorzugsweise sind 2 oder mehr Kontaktstifte (103) vorgesehen.At least one current-carrying contact pin (103) is guided through the base section (1013) and protrudes freely into the sleeve section (1011). This at least one contact pin (103) represents the male part of the circular connector (1), which is designed to be received in the female part of an (external) cable to be connected. Preferably two or more contact pins (103) are provided.
Der Rundsteckverbinder (1) umfasst ferner ein Isolierelement (105) in dem Sockelabschnitt (1013), das den zumindest einen stromführenden Kontaktstift (103) formschlüssig gegen den Sockelabschnitt (1013) isoliert und diesen in dem Sockelabschnitt (1013) positioniert. Das Isolierelement (105) ist vorzugsweise aus einem glasartigen Material gebildet. Erfindungsgemäß finden insbesondere Glas, Glaskeramik oder Keramik Anwendung. Hierdurch wird die hermetische Dichtigkeit möglich gemacht. Der Ausdruck "formschlüssig (...) isoliert" bedeutet im Rahmen der vorliegenden Beschreibung, dass das Isolierelement (105) den zumindest einen stromführenden Kontaktstift (103) vollständig umgibt und lückenlos mit dem Sockelabschnitt (1013) abschließt.The circular connector (1) further comprises an insulating element (105) in the base section (1013), which positively isolates the at least one current-carrying contact pin (103) from the base section (1013) and positions it in the base section (1013). The insulating element (105) is preferably formed from a glass-like material. According to the invention, glass, glass ceramic or ceramic are used in particular. This makes the hermetic seal possible. In the context of the present description, the expression "positively (...) insulated" means that the insulating element (105) completely surrounds the at least one current-carrying contact pin (103) and closes without gaps with the base section (1013).
Schließlich umfasst der erfindungsgemäße Rundsteckverbinder (1) eine Isolierhülse (107), die formschlüssig in dem Hülsenabschnitt (1011) positioniert ist und mit ihrem einen Ende an den Sockelabschnitt (1013) anschließt. Die Isolierhülse (107) stellt eine zusätzliche Isolierung zwischen dem Hülsenabschnitt (1011) und dem zumindest einen stromführenden Kontaktstift (103) dar. Bevorzugte Materialien für die Isolierhülse (107) sind Polyetheretherketon (PEEK), Polytetrafluorethylen (PTFE; "Teflon"), Silikone oder andere temperaturstabile Kunststoffe. Alternativ können auch keramische Werkstoffe eingesetzt werden.Finally, the circular connector (1) according to the invention comprises an insulating sleeve (107), which is positioned in a form-fitting manner in the sleeve section (1011) and connects with its end to the base section (1013). The insulating sleeve (107) provides additional insulation between the sleeve section (1011) and the at least one current-carrying contact pin (103). Preferred materials for the insulating sleeve (107) are polyether ether ketone (PEEK), polytetrafluoroethylene (PTFE; "Teflon"), silicones or other temperature-stable plastics. Alternatively, ceramic materials can also be used.
Der Ausdruck "formschlüssig (...) positioniert" bedeutet im Rahmen der vorliegenden Beschreibung, dass die Isolierhülse (107) lückenlos mit dem Hülsenabschnitt (1011) abschließt.In the context of the present description, the expression “positively (...) positioned” means that the insulating sleeve (107) terminates seamlessly with the sleeve section (1011).
Der erfindungsgemäße Rundsteckverbinder (1) zeichnet sich dadurch aus, dass das Gehäuse (101) in einem Übergangsbereich zwischen Hülsenabschnitt (1011) und Sockelabschnitt (1013) eine Ausnehmung (1015) aufweist, die durch die Positionierung der Isolierhülse (107) einen Ringraum bildet, so dass zwischen dem zumindest einen stromführenden Kontaktstift (103) und dem Hülsenabschnitt (1011) durch die Positionierung der Isolierhülse (107) eine Luft- und Kriechstrecke (3) von mindestens 2 mm ausgebildet ist.The circular connector (1) according to the invention is characterized in that the housing (101) has a recess (1015) in a transition region between the sleeve section (1011) and the base section (1013), which forms an annular space through the positioning of the insulating sleeve (107), so that an air and creepage distance (3) of at least 2 mm is formed between the at least one current-carrying contact pin (103) and the sleeve section (1011) due to the positioning of the insulating sleeve (107).
Die erfindungsgemäß vorgesehene Ausnehmung (1015) ist luftgefüllt und bildet zusammen mit der zusätzlich vorgesehenen Isolierhülse (107) die notwendigen baulichen Voraussetzungen für die Luft- und Kriechstrecke von mindestens 2 mm. Diese Luft- und Kriechstrecke wird benötigt, um die Isolationsstrecken nach der IEC 60079-11 (Ex-Schutz) zu erfüllen.The recess (1015) provided according to the invention is filled with air and, together with the additionally provided insulating sleeve (107), forms the necessary structural requirements for the clearance and creepage distance of at least 2 mm. This clearance and creepage distance is required to meet the insulation distances according to IEC 60079-11 (explosion protection).
Unter "luftgefüllt" wird vorliegende verstanden, dass die erfindungsgemäß vorgesehene Ausnehmung (1015) nicht mit einem Material oder einem Element, beispielsweise einer Dichtung, versehen wird, sondern leer bleibt und daher mit der umgebenden Atmosphäre, d.h. Luft, gefüllt ist.The term "air-filled" means that the recess (1015) provided according to the invention is not provided with a material or element, for example a seal, but remains empty and is therefore filled with the surrounding atmosphere, ie air.
Das Gehäuse (101) weist im Bereich des Sockelabschnitts (1013) einen gegenüber dem Hülsenabschnitt (1011) erweiterten Innendurchmesser auf, in dem im Wesentlichen bündig mit der hinteren Fläche des Rundsteckverbinders (1) das Isolierelement (105) angeordnet wird. Dabei ist dieses nicht bis an den Hülsenabschnitt (1011) heran ausgebildet, sondern lässt einen Freiraum offen, der an zwei Seiten von dem Gehäuse (101) und an einer Seite von dem Isolierelement (105) begrenzt wird. Dieser Freiraum wird dann durch das Einbringen der Isolierhülse (107) in das Gehäuse (101) an seiner vierten Seite zumindest teilweise geschlossen und bildet die erfindungsgemäße Ausnehmung (1015).In the area of the base section (1013), the housing (101) has an inner diameter which is enlarged compared to the sleeve section (1011) and in which the insulating element (105) is arranged essentially flush with the rear surface of the circular connector (1). This is not formed up to the sleeve section (1011), but leaves a free space open, which is delimited on two sides by the housing (101) and on one side by the insulating element (105). This free space is then at least partially closed on its fourth side by introducing the insulating sleeve (107) into the housing (101) and forms the recess (1015) according to the invention.
Die Formulierung "zumindest teilweise" bedeutet in diesem Zusammenhang, dass die Isolierhülse (107) nicht zwingend bis zum Anliegen an dem Isolierelement (105) in den Hülsenabschnitt (1011) eingeführt wird. Die Isolierhülse (107) wird das Isolierelement (105) in der Regel nicht berühren. Es wird vielmehr in der Regel ein Luftspalt zwischen Isolierhülse (107) und Isolierelement (105) gebildet, der jedoch sehr klein sein kann.In this context, the phrase "at least partially" means that the insulating sleeve (107) is not necessarily inserted into the sleeve section (1011) until it lies against the insulating element (105). The insulating sleeve (107) will generally not touch the insulating element (105). Rather, an air gap is generally formed between the insulating sleeve (107) and the insulating element (105), but this can be very small.
Der erfindungsgemäße Rundsteckverbinder (1) stellt ein hermetisch dichtes Steckergehäuse (männliche Seite) dar, das durch die erfindungsgemäßen konstruktiven Maßnahmen, insbesondere durch das Vorsehen der Isolierhülse (107) und der ringraumförmigen Ausnehmung (1015), die Zulassung für den Einsatz in explosionsgefährdeten Bereichen (Schutzniveaus "ia" und "ib") erreicht. Dadurch wird im Vergleich zum Stand der Technik eine wenig aufwändige und damit kostengünstige Verkleinerung der Steckverbindung bei gleichzeitiger Beibehaltung ihrer Robustheit ermöglicht. Die im Bereich der Sensorik und Automatisierung als Standard verbreiteten Steckverbindungen mit dem Maß M12 können durch den erfindungsgemäßen Rundsteckverbinder (1) daher in explosionsgeschützten Bereichen zum Einsatz kommen. Insbesondere können durch den erfindungsgemäßen Rundsteckverbinder (1) Steckverbindungen mit dem Maß M12 und kleiner in explosionsgeschützten Bereichen zum Einsatz kommen.The circular connector (1) according to the invention represents a hermetically sealed connector housing (male side) which, through the constructional measures according to the invention, in particular through the provision of the insulating sleeve (107) and the annular recess (1015), the approval for use in potentially explosive areas ( Protection levels "ia" and "ib") reached. In comparison to the prior art, this enables the plug-in connection to be made less complex and thus inexpensive, while at the same time maintaining its robustness. The plug connections with the dimension M12, which are widespread as standard in the field of sensors and automation, can therefore be used in explosion-protected areas using the circular plug connector (1) according to the invention. In particular, the circular connector (1) according to the invention can be used to use M12 and smaller connectors in explosion-protected areas.
Die Realisierung dieses Einsatzes wird insbesondere ohne eine Einschränkung des Verschmutzungsgrades erreicht, wie der beispielsweise in der Norm IEC 60079-11, Anhang F, beschrieben ist. Es gibt grundsätzlich die Möglichkeit, die Isolierstrecken zu verkleinern, wenn bestimmte Anforderungen an Materialien (Kriechstromzahl (CTI) und Verschmutzungsgrad) erfüllt werden. Bei einer Luft- und Kriechstecke von mind. 2 mm gibt es bezüglich Material und Verschmutzung jedoch keine solchen Einschränkungen mehr.The implementation of this application is achieved in particular without a restriction of the degree of contamination, as described for example in the standard IEC 60079-11, Appendix F. There is always the option of reducing the insulation distances if certain requirements for materials (leakage current (CTI) and degree of pollution) are met. With an air and crawl space of at least 2 mm however, there are no such restrictions regarding material and pollution.
Gegenüber gattungsgemäßen Rundsteckverbindern, bei welchen die Isolierstrecke durch Verguss (oder Verklebung) realisiert wird, weist der erfindungsgemäße Rundsteckverbinder (1) den weiteren Vorteil auf, dass durch die erfindungsgemäße Ausnehmung (1015), welche luftgefüllt ist, auf einen solchen Verguss (oder Verklebung) verzichtet werden kann. Damit entfällt für den erfindungsgemäßen Rundsteckverbinder (1) die Nachweispflicht, dass der Verguss lunkerfrei ist und die Klebefläche eine innige Verbindung zwischen Isolierhülse und Isolierelement bildet, so dass die gewünschte Luft- und Kriechstecke von mind. 2 mm sichergestellt ist.Compared to generic circular connectors in which the insulating section is realized by potting (or gluing), the circular connector (1) according to the invention has the further advantage that the potting (or bonding) according to the invention, which is filled with air, means that such a potting (or bonding) can be dispensed with. This means that the circular connector (1) according to the invention no longer has to prove that the potting is free of voids and that the adhesive surface forms an intimate connection between the insulating sleeve and the insulating element, so that the desired clearance and creepage distance of at least 2 mm is ensured.
In einer Weiterbildung der Erfindung weist die Luft- und Kriechstrecke (3) einen geradlinigen Anteil (3d) und/oder einen winkligen Anteil (3a, 3b, 3c) auf, die jeweils mindestens 2 mm betragen. Durch diese erfindungsgemäße konstruktive Maßnahme wird auch bei kleineren Stecker-Maßen die erforderliche Luft- und Kriechstrecke (3) von mindestens 2 mm sichergestellt, d.h. bei Stecker-Maßen von M12 und kleiner.In a development of the invention, the clearance and creepage distance (3) has a rectilinear portion (3d) and / or an angled portion (3a, 3b, 3c), each of which is at least 2 mm. By means of this constructive measure according to the invention, the required clearance and creepage distance (3) of at least 2 mm is ensured even with smaller connector dimensions, i.e. with connector dimensions of M12 and smaller.
Diese Weiterbildung kann vorteilhafterweise so ausgeführt sein, dass
- der erste winklige Anteil (3a) in der Ausnehmung (1015) verläuft,
- der zweite winklige Anteil (3b) zwischen Isolierelement (105) und dem Innenraum der Isolierhülse (107) verläuft und
- der dritte winklige Anteil (3c) zwischen Isolierelement (105) und Isolierhülse (107) verläuft.
- the first angled portion (3a) runs in the recess (1015),
- the second angled portion (3b) runs between the insulating element (105) and the interior of the insulating sleeve (107) and
- the third angled portion (3c) runs between the insulating element (105) and the insulating sleeve (107).
Besonders ist bei dieser Weiterbildung das Aufteilen der Luft- und Kriechstrecke (3) in einen winkligen Anteil (3a, 3b, 3c), wobei der erste winklige Anteil (3a) in der erfindungsgemäß vorgesehenen Ausnehmung (1015) verläuft, die einen luftgefüllten ringförmigen Hohlraum darstellt. Die Formulierung "in der (...) Ausnehmung (1015) verläuft" bedeutet dabei, dass abhängig davon, ob die Isolierhülse (107) das Gehäuse (101) berührt oder nicht, der erste winklige Anteil (3a) als Kriechstrecke entlang der Isolierhülse (107) am Rande der Ausnehmung (1015) zum Gehäuse (101) (berührt) oder als Luftstrecke durch die Ausnehmung (1015) von der Isolierhülse (107) zum Gehäuse (101) (berührt nicht) verläuft.What is special in this development is the division of the air and creepage distance (3) into an angled portion (3a, 3b, 3c), the first angled portion (3a) running in the recess (1015) provided according to the invention, which has an air-filled annular cavity represents. The phrase "runs in the (...) recess (1015)" means that, depending on whether the insulating sleeve (107) touches the housing (101) or not, the first angled portion (3a) as a creepage distance along the insulating sleeve (107) on the edge of the recess (1015) to the housing (101) (touched) or as an air gap through the recess (1015) from the insulating sleeve (107) to the housing (101) (does not touch).
Zudem verläuft der zweite winklige Anteil (3b) zwischen Isolierelement (105) und dem Innenraum der Isolierhülse (107). In der Regel berührt gemäß der vorliegenden Erfindung die Isolierhülse (107) das Isolierelement (105) nicht, so dass ein Luftspalt zwischen diesen entsteht. In diesem Fall verläuft der zweite winklige Anteil (3b) als Luftstrecke durch den Innenraum der Isolierhülse (107). Für den Fall, dass sich Isolierhülse (107) und Isolierelement (105) berühren, verläuft der zweite winklige Anteil (3b) als Kriechstrecke zwischen diesen entlang des Isolierelements (105).In addition, the second angled portion (3b) runs between the insulating element (105) and the interior of the insulating sleeve (107). In general, according to the present invention, the insulating sleeve (107) does not touch the insulating element (105), so that an air gap is created between them. In this case, the second angled portion (3b) runs as an air gap through the interior of the insulating sleeve (107). In the event that the insulating sleeve (107) and insulating element (105) touch, the second angled portion (3b) runs as a creepage distance between them along the insulating element (105).
Ferner verläuft der dritte winklige Anteil (3c) zwischen dem Isolierelement (105) und der Isolierhülse (107) als Kriechstrecke. Diese Kriechstrecke verläuft nur in dem relativ kleinen Bereich, welcher der Dicke der Isolierhülse (107) entspricht.Furthermore, the third angled portion (3c) runs between the insulating element (105) and the insulating sleeve (107) as a creepage distance. This creepage distance runs only in the relatively small area, which corresponds to the thickness of the insulating sleeve (107).
Die Summe des winkligen Anteils (3a, 3b, 3c) ist dabei erfindungsgemäß größer/gleich 2 mm.According to the invention, the sum of the angular portion (3a, 3b, 3c) is greater than / equal to 2 mm.
Es hat sich als vorteilhaft herausgestellt, wenn das Isolierelement (105) eine Glas-Metall-Durchführung ist, so dass der Rundsteckverbinder (1) hermetisch dicht ausgebildet ist. Zusammen mit dem Sockelabschnitt (1013) und dem zumindest einen stromführenden Kontaktstift (103) stellt das Isolierelement (105) einen Glas-Metall-Verbund dar. Neben der Eigenschaft hermetisch dicht ist das Isolierelement (105) auch chemisch resistent und temperaturstabil.It has proven to be advantageous if the insulating element (105) is a glass-metal bushing, so that the circular connector (1) is hermetically sealed. Together with the base section (1013) and the at least one current-carrying contact pin (103), the insulating element (105) is a glass-metal composite. In addition to being hermetically sealed, the insulating element (105) is also chemically resistant and temperature-stable.
Für das Erreichen einer im Vergleich zum Stand der Technik erweiterten Anforderung an die Umweltbedingungen ist erfindungsgemäß vorgesehen, dass die Einsatztemperatur des Rundsteckverbinders (1) - 55 °C bis 260 °C beträgt. Diese vergleichsweise hohe Einsatztemperatur wird durch die Auswahl des Materials für die Isolierhülse (107), beispielsweise PTFE, Polyimid oder Silikone, erreicht. Es ist erfindungsgemäß bevorzugt, wenn die Einsatztemperatur des Rundsteckverbinders (1) - 55 °C bis 180 °C, insbesondere bis 150 °C beträgt.In order to achieve a requirement for the environmental conditions which is expanded in comparison with the prior art, the invention provides that the operating temperature of the circular connector (1) is -55 ° C. to 260 ° C. This comparatively high operating temperature is achieved through the selection of the material for the insulating sleeve (107), for example PTFE, polyimide or silicones. It is preferred according to the invention if the operating temperature of the circular connector (1) is - 55 ° C to 180 ° C, in particular up to 150 ° C.
Es ist insbesondere bevorzugt, wenn der erfindungsgemäße Rundsteckverbinder (1) den Maßen für M12 Steckverbinder entspricht, speziell bevorzugt Maßen für M12 Steckverbinder und kleiner. Bei größeren Steckverbindern wie z.B. M16 ist eine Luft- und Kriechstecke von 2 mm grundsätzlich bekannt und trivial zu erreichen. Bei kleineren Maßen wie M8 ist ein deutlich höherer Aufwand zum Erreichen einer Luft- und Kriechstecke von 2 mm notwendig, grundsätzlich aber mit den erfindungsgemäßen Maßnahmen möglich.It is particularly preferred if the circular connector (1) according to the invention corresponds to the dimensions for M12 connectors, particularly preferably dimensions for M12 connectors and smaller. With larger connectors such as M16, an air and creepage distance of 2 mm is basically known and can be achieved trivially. With smaller dimensions like M8 there is a significantly higher effort to achieve an air and Creepage distance of 2 mm is necessary, but in principle possible with the measures according to the invention.
In einer Ausführungsform der Erfindung bildet der Rundsteckverbinder (1) den männlichen Teil einer Rundsteckverbindung und ist mit einem weiblichen Teil eines M12 Rundsteckverbinders formschlüssig und/oder kraftschlüssig verbindbar. Solche weiblichen Teile sind als weibliche Rundsteckverbinder (5) aus dem Stand der Technik bekannt und bilden genormte Standard-Anschlüsse in vielen Gebieten der Elektronik. Der erfindungsgemäße (männliche) Rundsteckverbinder (1) ist somit mit handelsüblichen (weiblichen) Anschlüssen universell einsetzbar. Dabei ist die Erfindung unabhängig von der verwendeten Steckerkodierung oder der Polzahl.In one embodiment of the invention, the circular connector (1) forms the male part of a circular connector and can be positively and / or non-positively connected to a female part of an M12 circular connector. Such female parts are known as female circular connectors (5) from the prior art and form standardized standard connections in many areas of electronics. The (male) circular connector (1) according to the invention can thus be used universally with commercially available (female) connections. The invention is independent of the connector coding used or the number of poles.
In einer Weiterbildung ist der Sockelabschnitt (1013) des erfindungsgemäßen Rundsteckverbinders (1) flanschartig ausgebildet, so dass dieser in einfacher Art und Weise mit Gehäusen von Geräten mechanisch verbunden werden kann.In a further development, the base section (1013) of the circular connector (1) according to the invention is flange-shaped, so that it can be mechanically connected to housings of devices in a simple manner.
In einer speziellen Ausführungsform ist der erfindungsgemäße Rundsteckverbinder (1) Teil eines Schwingungsaufnehmers. Der Vorteil dabei ist, dass die Verwendung des erfindungsgemäßen Rundsteckverbinders (1) eine kostengünstige Möglichkeit schafft, M12 Steckverbinder auch in explosionsgefährdeten Bereichen einsetzen zu können.In a special embodiment, the circular connector (1) according to the invention is part of a vibration sensor. The advantage here is that the use of the circular connector (1) according to the invention creates a cost-effective way of using M12 connectors even in potentially explosive areas.
Weitere Ziele, Merkmale, Vorteile und Anwendungsmöglichkeiten ergeben sich aus der nachfolgenden Beschreibung von die Erfindung nicht einschränkenden Ausführungsbeispielen anhand der Figuren. Dabei bilden alle beschriebenen und/oder bildlich dargestellten Merkmale für sich oder in beliebiger Kombination den Gegenstand der Erfindung, auch unabhängig von ihrer Zusammenfassung in den Ansprüchen oder deren Rückbeziehung. Es zeigen:
- Fig. 1:
- eine schematische Schnittdarstellung des erfindungsgemäßen Rundsteckverbinders 1 in einer Ausführungsform der Erfindung,
- Fig. 2:
- eine erste Detailansicht des in
Fig. 1 gezeigten erfindungsgemäßen Rundsteckverbinders 1, - Fig. 3
- eine zweite Detailansicht des in
Fig. 1 gezeigten erfindungsgemäßen Rundsteckverbinders 1, - Fig. 4:
- eine schematische Darstellung einer Isolierhülse 107 in einer Ausführungsform der Erfindung,
- Fig. 5:
- einen weiblichen Steckverbinder 5 (Standard) zur Verbindung mit
dem erfindungsgemäßen Rundsteckverbinder 1, und - Fig. 6:
- den in
Fig. 1 dargestellten erfindungsgemäßen Rundsteckverbinder 1 in gestecktem Zustand mit dem inFig. 5 dargestellten weiblichen Steckverbinder 5.
- Fig. 1:
- 2 shows a schematic sectional illustration of the
circular connector 1 according to the invention in one embodiment of the invention, - Fig. 2:
- a first detailed view of the in
Fig. 1 showncircular connector 1 according to the invention, - Fig. 3
- a second detailed view of the in
Fig. 1 showncircular connector 1 according to the invention, - Fig. 4:
- 2 shows a schematic illustration of an
insulating sleeve 107 in one embodiment of the invention, - Fig. 5:
- a female connector 5 (standard) for connection to the
circular connector 1, and - Fig. 6:
- the in
Fig. 1 Circular connector 1 according to the invention shown in the inserted state with the inFig. 5 Female connector 5 shown.
In
In den Hülsenabschnitt 1011 ist erfindungsgemäß eine Isolierhülse 107 eingebracht, die im Innern des Gehäuses 101 bis an den Sockelabschnitt 1013 ragt, aber nicht zwingend mit diesem abschließen muss. Innerhalb des Sockelabschnitts 1013 ist ein Rücksprung (Bereich mit größerem Innendurchmesser) vorgesehen, der zusammen mit dem Isolierelement 105 die Grundlage für die erfindungsgemäße Ausnehmung 1015 bildet. Die erfindungsgemäße Ausnehmung 1015 wird gebildet, wenn die Isolierhülse 107 in den Hülsenabschnitt 1011 eingeführt ist und damit zumindest teilweise die vierte Seite der Ausnehmung 1015 bildet. Diese Ausnehmung 1015 ist, wie vorstehend bereits beschrieben, luftgefüllt.According to the invention, an insulating
In
Gewöhnlicherweise liegen bei Steckverbindern nach dem Stand der Technik, welche das Maß M12 (oder kleiner) aufweisen, die Kontaktstifte 103 aufgrund der räumlichen Enge weniger als 2 mm von dem Steckgehäuse entfernt, welches häufig aus Metall hergestellt ist. Die erforderliche Luft- und Kriechstrecke von 2 mm wird daher bei Steckverbindungen (z.B. von M12) nach dem Stand der Technik unterschritten. In
In
In
Der erfindungsgemäße Rundsteckverbinder 1 wurde insbesondere in Bezug auf das Maß M12 in einer vierpoligen Ausführung beschrieben. Das erfindungsgemäße Prinzip der Erweiterung der Luft- und Kriechstrecke 3 ist jedoch unabhängig von der Polzahl und unabhängig von der Steckerkodierung und kann auf andere Steckermaße und andere geometrische Anordnungen ausgeweitet werden.The
- 11
- RundsteckverbinderCircular connectors
- 101101
- Gehäusecasing
- 10111011
-
Hülsenabschnitt des Gehäuses 101Sleeve portion of the
housing 101 - 10131013
-
Sockelabschnitt des Gehäuses 101Base portion of the
housing 101 - 10151015
- AusnehmungRecess
- 103103
- KontaktstiftContact pin
- 105105
- IsolierelementInsulating element
- 107107
- IsolierhülseInsulating sleeve
- 10711071
-
Auskragung der Isolierhülse 107Cantilevered insulating
sleeve 107 - 33rd
- Luft- und KriechstreckeClearance and creepage distance
- 3a3a
-
erster winkliger Anteil der Luft- und Kriechstrecke 3first angular part of the clearance and
creepage distance 3 - 3b3b
-
zweiter winkliger Anteil der Luft- und Kriechstrecke 3second angular part of the clearance and
creepage distance 3 - 3c3c
-
dritter winkliger Anteil der Luft- und Kriechstrecke 3third angular part of the clearance and
creepage distance 3 - 3d3d
-
geradliniger Anteil der Luft- und Kriechstrecke 3rectilinear part of the clearance and
creepage distance 3 - 55
- weiblicher Steckverbinderfemale connector
- 501501
-
im Durchmesser verringerter Abschnitt des weiblichen Steckverbinders 5Reduced diameter section of
female connector 5 - 503503
- AufnahmehülseReceptacle
Claims (9)
- Round plug connector (1), comprising- a housing (101) with a sleeve section (1011) and a base section (1013),- at least one current-carrying contact pin (103) guided through the base section (1013) and projecting freely into the sleeve section (1011),- an insulating element (105) in the base section (1013) that positively locks the at least one current-carrying contact pin (105) in place in the base section (1013) and insulates it from the base section (1013), and- an insulating sleeve (107) that is positively locked in place in the sleeve section (1011),
characterized in that the housing (101) has a recess (1015) in a transitional area between the sleeve section (1011) and the base section (1013), said recess (1015) forming an annular space as a result of the positioning of the insulating sleeve (107), so that a clearance and creepage distance (3) of at least 2 mm arises between the at least one current-carrying contact pin (103) and the housing (101) as a result of the positioning of the insulating sleeve (107). - Round plug connector (1) according to claim 1, wherein the clearance and creepage distance (3) comprises a linear (3d) and/or an angular section (3a, 3b, 3c), each of which measuring at least 2 mm.
- Round plug connector (1) according to claim 2, wherein- the first angular section (3a) runs in the recess (1015),- the second angular section (3b) runs between the insulating element (105) and the interior of the insulating sleeve (107).- and the third angular section (3c) runs between the insulating element (105) and the insulating sleeve (107).
- Round plug connector (1) according to one of the claims 1 to 3, wherein the insulting element (105) is a glass-metal seal, so that the round plug connector (1) is hermetically sealed.
- Round plug connector (1) according to one of the claims 1 to 4, the operating temperature of the round plug connector (1) being -55°C to 260°C.
- Round plug connector (1) according to one of the claims 1 to 5, the round plug connector (1) having the dimensions for M12 connectors.
- Round plug connector (1) according to one of the claims 1 to 6, wherein the round plug connector (1) forms the male part of round plug connection and can be form-locked and/or friction-locked in a female part of an M12 round plug connector.
- Round plug connector (1) according to one of the claims 1 to 7, wherein the base section (1013) has a flange-like design.
- Round plug connector (1) according to one of the claims 1 to 8, the round plug connector (1) forming part of a vibration sensor.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017001493.0A DE102017001493B4 (en) | 2017-02-17 | 2017-02-17 | circular connector |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3364504A1 EP3364504A1 (en) | 2018-08-22 |
EP3364504B1 true EP3364504B1 (en) | 2020-04-29 |
Family
ID=61231037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18020066.9A Active EP3364504B1 (en) | 2017-02-17 | 2018-02-16 | Round plug connector |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3364504B1 (en) |
DE (1) | DE102017001493B4 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019002847A1 (en) * | 2019-04-17 | 2020-10-22 | Mbda Deutschland Gmbh | Breakable electrical connection arrangement for or on a vehicle, in particular a wing, a missile and a method for launching a missile |
DE102022130669A1 (en) | 2022-11-21 | 2024-05-23 | Endress+Hauser SE+Co. KG | Screw-in connection element for Ex-i and Ex-d compliant transmission of electrical signals |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3146054A (en) | 1961-05-03 | 1964-08-25 | Pyle National Co | Connector with indexing means |
US3597716A (en) | 1969-05-29 | 1971-08-03 | Itt | Hermetically sealed connector |
DE4404260A1 (en) * | 1994-02-10 | 1995-08-17 | W W Fischer Sa | Electric plug connector |
DE10117976A1 (en) | 2001-01-25 | 2002-08-22 | Siemens Ag | Device for the passage of electrical lines through the wall of a fuel tank |
DE10122816B4 (en) | 2001-05-11 | 2012-02-02 | Escha Bauelemente Gmbh | Plug of a plug connection |
DE102014106355A1 (en) | 2014-05-07 | 2015-11-12 | Amphenol-Tuchel Electronics Gmbh | Sealed circular connector |
DE102014112658B4 (en) | 2014-09-03 | 2018-05-30 | FILTEC GmbH Filtertechnologie für die Elektronikindustrie | Plug for a connector for data cables |
-
2017
- 2017-02-17 DE DE102017001493.0A patent/DE102017001493B4/en active Active
-
2018
- 2018-02-16 EP EP18020066.9A patent/EP3364504B1/en active Active
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
DE102017001493A1 (en) | 2018-08-23 |
DE102017001493B4 (en) | 2023-06-01 |
EP3364504A1 (en) | 2018-08-22 |
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