EP1012922B1 - Elektrische steckverbindung - Google Patents

Elektrische steckverbindung Download PDF

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Publication number
EP1012922B1
EP1012922B1 EP98948908A EP98948908A EP1012922B1 EP 1012922 B1 EP1012922 B1 EP 1012922B1 EP 98948908 A EP98948908 A EP 98948908A EP 98948908 A EP98948908 A EP 98948908A EP 1012922 B1 EP1012922 B1 EP 1012922B1
Authority
EP
European Patent Office
Prior art keywords
outer part
sleeve
electrical plug
connection according
inner part
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.)
Expired - Lifetime
Application number
EP98948908A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1012922A1 (de
Inventor
Ralf Seufert
Stefan Tluczykont
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wieland Electric GmbH
Original Assignee
Wieland Electric GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wieland Electric GmbH filed Critical Wieland Electric GmbH
Publication of EP1012922A1 publication Critical patent/EP1012922A1/de
Application granted granted Critical
Publication of EP1012922B1 publication Critical patent/EP1012922B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6271—Latching means integral with the housing
    • H01R13/6273—Latching means integral with the housing comprising two latching arms
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap

Definitions

  • the invention relates to an electrical plug connection according to the preamble of claim 1.
  • an electrical line connection or a plug connection is used here electrical device connection with a coupling plug and with a coupling socket Roger that.
  • Such, e.g. US Pat. No. 5,637,010 known plug device serves the purpose of making an electrical connection To be able to produce sticks.
  • an electrical line Plug contact part for example in the form of a multi-pin coupling plug, created a releasable electrical connection to a mating contact part.
  • the mating contact part e.g. in the form of a coupling socket, can also be used an electrical line connected or directly connected to an electrical device his.
  • Such a plug device is to prevent contact with live parts often with one that protrudes beyond the live parts and usually Protective collar made of insulating material.
  • the connector essentially comprises an outer part, expediently in the form of the plug part, and an inner part picked up by this, which then contacts the counter contacts Contains plug connection in the form of sockets.
  • the inner part and the outer part are usually matched to one another with regard to their dimensions, that the plug connection is held together by force or positive locking.
  • a locking hook which is in an opening in the outer part held resiliently and axially by abutment on an arranged on the outer part slidable sleeve is secured against radial deflection.
  • the invention is therefore based on the object for such an electrical connector a particularly reliable and comparative of the type mentioned simply set up lock to indicate which on the one hand is an unintended Pulling apart of the two coupling parts safely prevented and the other hand enables the plug connection to be loosened as often as required.
  • the locking hooks On the outer part of the connector are a number of resilient locking hooks, preferably two opposing locking hooks, provided during the Inner part has corresponding recesses for receiving the locking hook.
  • the locking hooks are coaxially surrounding the outer part and carried by this slidable sleeve against radial deflection blocked. Unlocking takes place by sliding the sleeve against the insert or insertion direction. This releases the locking hooks, so that these can dodge radially outwards when the plug connection is released.
  • a return spring is provided. This is conveniently in a closed Annulus introduced between the outer part and the sleeve, which advantageously by an inner wall of the sleeve on the one hand and by a step on the shaft of the External part is limited on the other hand.
  • To unlock the connector is thus to move the sleeve against the force of the spring so that the sleeve is always in the normal or locking position is driven back.
  • the or each latching hook is advantageously from one behind the other in the axial direction a cam and a resilient shaft (spring shaft) are formed in one piece, which is molded into an opening in the outer part.
  • the one after The type of a cast-on spring tongue formed latching hook is thus self-resilient, this in normal division with the insertion opening for the inner part delimiting Wall is aligned.
  • the locking hook can be in the rest or normal position be deflected outwards when the sleeve is retracted and thus a pretension have, when pushing the sleeve of the locking hook in the direction of Protective collar of the outer part formed and pressed by the sleeve in turn is immovable to the outside. This alternative simplifies it Pull apart the two plug or coupling parts.
  • the latching hook can have a lower inlet inclination compared to the outlet inclination Show ⁇ . This should only deviate by an amount from a 0 ° inclination, by joining the inner part and the outer part together in the unlocked position located sleeve is just guaranteed.
  • the Inclination angle ⁇ between zero and forty-five degrees.
  • the locking mechanism acts like a Directional locks.
  • the feather legs lie in the plane running parallel to the insertion or joining direction of the opening in the outer part, into which the locking hook is molded.
  • the inner part points an internal contour opening into the recess for guiding the cams or locking hooks on.
  • the inner contour tapers in the direction of insertion towards the recess there. This locking mechanism allows the outer part to be pushed open the inner part without pulling the sleeve back into the unlocked position.
  • the Locking mechanism thus allows the interior to be plugged together and outer part with the sleeve in the locked position, which then releases the connector reliably prevented.
  • the plug connection is unlocked by the locking hooks moving radially outwards can and the cams designed as pawls from the counter surface of the Be released from behind.
  • the inner part carries one at its insertion end Sealing ring.
  • the inner part knows at least two diameter steps decreasing towards the inserting end, whereby at the inserting end facing step a circumferential groove for receiving the sealing ring is provided.
  • the inner diameter of the outer part is adapted to these steps, so that a reliable sealing effect is ensured after the plug connection has been made is.
  • the inner part has a number of axially extending through openings for receiving of contact inserts, while in the bottom of the housing with these aligned through openings provided for receiving the mating contact inserts are.
  • the outer part is expediently designed as a plug while the inner part forms the socket.
  • the jacket of the outer part delimiting the insertion opening forms at the same time the protective collar to prevent the plug contacts from bending due to external mechanical To prevent influences.
  • the sleeve is provided on the jacket side with a circumferential recessed grip, which is manual Movement of the sleeve facilitated.
  • a handle is molded into a preferably at an obtuse angle bent guide sleeve for receiving an electrical line in one piece transforms.
  • Fig. 1 shows the electrical connector 1 as a device connector in a coupled and locked state. It comprises an outer part 2 and an inner part 3 that in the outer part 2 is inserted or onto which the outer part 2 is pushed.
  • the inner part 3 comprises a holding plate 4, which is square in the exemplary embodiment, with rounded Corners 5, in the area of through openings 6 for (not shown) fasteners are provided.
  • the inner part 3 can e.g. on one electrical device.
  • the outer part 2 carries a sleeve 7, which in Axial direction A along a shaft 9 of the outer part 2 in and against that with the Axial direction A coinciding insertion direction E is displaceable.
  • the sleeve 7 at the end facing the inner part 3 provided with a recessed grip 10.
  • the outer part 2 is designed in the manner of an angled plug and points to it the end facing away from the inner part 3 is bent at an obtuse angle ⁇ ( ⁇ > 90 °) Guide sleeve 11 through which a (not shown) connecting line to be led.
  • the guide sleeve 11 is advantageously molded onto the outer part 2. But it can also be designed as a separate part replaceable.
  • the outer part 2 is deposited on the shell side to form a step 13, which one Unlocking stop for the sleeve 7 when it is moved against the direction of insertion E forms. Instead of such a step 13 there can also be a holding collar be molded onto the outer part 2.
  • the sleeve 7 is part of a locking and unlocking mechanism of the plug connection 1, as can be seen from the sectional view according to FIG. 2.
  • the sleeve 7 blocks two diametrically opposed locking hooks 14, which are part of the outer part 2 and the lock.
  • the locking hooks 14 extend extending in the insertion direction E up to the mouth of an insertion opening 15 of the outer part 2. They engage behind each of an outlet inclination 16 of a recess 17 in the shaft 18 of the inner part 3.
  • the locking is effected by the locking hook 14 rest in their normal position shown on the inner wall of the sleeve 7. This prevents the locking hooks 14 from evading in the radial direction R.
  • the contact surface is expediently formed by an inwardly directed collar or web contour 19 on the inner wall of the sleeve 7 in the region of the recessed grip 10.
  • This web contour 19 and a step 12 on the outer part 2 delimit one formed thereby Annulus 20 between the sleeve 7 and the outer part 2, the expansion in Axial direction A reduced by moving the sleeve 7 against the insertion direction E. becomes.
  • This annular space 20 serves to receive a return spring 21 which Sleeve 7 always drives back into the locking position.
  • the reduction of the annulus 20 by moving the sleeve 7 against the insertion direction E thus causes a Preloading the return spring 21 designed as a compression spring worn spring 21 is thus invisible and captive.
  • the latching hooks 14 are expediently designed in the form of molded spring tongues and thus self-resilient. For this purpose, each latching hook 14 points in the axial direction A.
  • a cam 14a and a resilient shaft 14b are arranged in one piece one behind the other on.
  • the spring shaft 14b of the latching hook 14 is on its side facing away from the cam 14a End with the wall 22 of the outer part delimiting the insertion opening 15 2 connected in one piece.
  • the jacket wall 22 also forms one Protective collar to avoid mechanical contact stress from external Powers.
  • the jacket wall 22 is in the form of jacket webs at the insertion opening 15 23 flared outward so that the jacket webs 23 one Form locking stop for the sleeve 7.
  • each latching hook 14 is approximately in the illustrated embodiment 45 ° and thus corresponds approximately to the tendency to leak 16. However, it is expedient the inclination ⁇ of the latching hook 14 is approximately zero degrees and thus smaller than the outlet inclination 16. As a result, when the sleeve 7 is in the locking position, a plugging together of outer part 2 and inner part 3 prevented.
  • the locking mechanism with the locking hooks 14 and the sleeve 7 on the one hand and the recesses 17 on the other hand thus provides a locking both with regard to the plugging together the plug-in device 1 and with respect to the pulling apart of the Plug device 1 represents. In this variant of the plug device 1 is an unintentional or unauthorized establishment or loosening of the connector reliably prevented.
  • the inner part 3 has a stepped outer contour with three different diameter levels 24 and 25a and 25b, which decrease towards the insertion end 26. So the largest diameter step 24 on the shaft side serves as an insertion stop for the inner part 3.
  • the inner contour is at the middle and smallest diameter step 25a or 25b or the inner diameter of the outer part 2 are adapted accordingly.
  • the diameter gradation serves to facilitate the production of the connector, as for Sealing of the connector 1, the inner part 3 on the smallest diameter level 25b carries a sealing ring 27.
  • Another sealing ring 28 is on the inserting end 26 facing away from the shaft or end face 29 of the inner part 3. This serves for sealing the inner part 3 against the (not shown) electrical device.
  • the inner part 3 has a number corresponding to the corresponding electrical poles Number of through holes 30 for receiving socket inserts 31 provided.
  • Corresponding through holes 32 in the outer part 2 are used Receiving plug contacts 33 forming the counter-contacts.
  • the contacts 31, 33 can also be interchanged, so that then the outer part 2, the socket inserts carries while the inner part 3 receives the plug contacts.
  • FIG. 3 and 4 show the inner part 3 and the outer part 2 of the plug-in device 1 According to the first variant with the connector disconnected when the outer part 2 from Inner part 3 is pulled off or the inner part 3 is pulled out of the outer part 2.
  • Fig. 3 shows the graduated outer contour of the inner part 3 and the shape of the trough-like recess 17 is comparatively clear.
  • the Plug device 1 designed nine poles.
  • the configuration of the latching hooks 14 can be seen comparatively clearly from FIG. 4.
  • the latching hooks 14 are provided in openings 34 in the outer part 2 and align with the jacket wall 22 of the outer part 2 which delimits them 14 are with the sleeve 7 pushed back against the insertion direction E in the radial direction R resiliently movable, so that the plug connection in this unlocking position 1 can be uncoupled. That is, in this unlocked position, the outer part 2 and the inner part 3 are pulled apart unhindered.
  • the necessary Pulling force is dependent, among other things, on the tendency to leak 16, while the insertion force is determined by the inclination ⁇ .
  • the transmission of the clutch forces is essentially determined by the contact surface between the cams 14a the locking hook 14 and the recess 17th
  • the cam 14a of the latching hook 14 and the recess 17 in the inner part 3 molded for a full-surface system.
  • the recess 17 has one through to the other parallel side surface 35 or 36 with inclined end faces therebetween limited, predeterminable tendency to leak 16.
  • the corresponding one is The slope of the locking hook 14 is adapted to the inclination of this end face.
  • the Width of the recess 17 is matched to the cam 14a, so that the cam face 37 is guided exactly.
  • a blind contact pin or blind contact 38 and on the inner part 3 a corresponding dummy bushing 39 is provided, which can be joined together have to swear.
  • Another directional requirement when plugging the outer part together 2 and the inner part 3 is due to the cross-sectional shape of the plug-in device 1 achieved. This deviates from the circular shape, the width of the crosswise to the axial direction A rectilinear locking hook 14 and the remaining gap widths of the opening 34 die Determine the deviation of the shape of the insertion opening 15 from the circular shape.
  • the latching hook 14 can also be at rest or Normal position with the sleeve 7 withdrawn be deflected outwards - that is to some extent have a bias, while then when the Sleeve 7, the locking hook 14 in the radial direction R to the interior or receiving space 40 of the Outer part 2 pressed out and again with the sleeve 7 advanced be held immobile.
  • the preferred variant of the locking mechanism shown in FIG. 5 enables pushing the outer part 2 onto the inner part 3 without the sleeve 7 in the unlocked position withdraw.
  • the or each latching hook 14 ' has two legs executed.
  • the partially withdrawn in this representation and for visualization of the two-leg latching hook 14 'in this area cut sleeve 7th is designed without a recessed grip.
  • the sleeve 7 can, however, again with a Handle recess 10 may be provided.
  • the spring shaft is in this variant by two spring legs 14c is formed, which with the jacket wall 22, which in turn delimits them of the outer part 2 are aligned.
  • cam of the locking hook 14 ' is in two parts, so that the two with the insertion or joining direction E in a plane transverse to the radial direction R extending spring legs 14c at the ends each with a radial direction R facing cam 14'a are provided.
  • the inner part 3 has one in the recess for guiding the cams or locking hooks 14'a 17 'opening inner contour 41.
  • the web guide enables plugging together of the outer part 2 and the inner part 3 even when the sleeve 7 is in the locking position located.
  • the spring legs 14c are thereby on the inner contour 41 of the inner part 3 performed in the manner of a snap lock.
  • FIG. 6a The position of the locking hook 14 'in this run-up area 41a and the contact of the spring legs 14c in this area of the web guide is shown in FIG. 6a.
  • Fig. 6b shows this position in cross section along the line VI-VI in Fig. 6a.
  • 6b shows that the locking hook 14 'only with its cam 14'a along the inner contour 41 is performed.
  • the cams 14'a are expediently at 90 ° from the Thrust guide plane radially inwards towards the receiving space 40 for the inner part 3 directed so that the inner contour 41 forms a web guide only with the cams 14'a.
  • a tapered area 41b of the inner contour 41 adjoins the run-up area 41a on.
  • the inner contour 41 tapers in the insertion direction E to the recess 17 '. there.
  • the position of the latching hook 14 'in this tapered area 41b is shown in FIG. 7a, while the associated cross-sectional representation can again be seen from FIG. 7b.
  • the spring legs 14c are fed towards one another until they in the adjoining, forming the narrowest point of the inner contour 41 Butt end region 41c. This is shown in FIGS. 8a and 8b.
  • Fig. 9a shows the position of the locking hook 14 'in the locked state, in which the Cams or locking hooks 14'a in the recess having a rear hooking area 41d 17 'are positively engaged.
  • This rear hooking condition of the cams 14'a shows Fig. 9b.
  • the locking mechanism forms a one acting in the radial direction R. Tooth alignment lock by the cams 14'a designed as pull or pawls are. If the sleeve 7 is withdrawn into the unlocked position, the Locking hook 14 'when pulling apart the outer part 2 and the inner part 3 radially dodge outside. This is shown in Figures 10a and 10b.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP98948908A 1997-09-10 1998-09-04 Elektrische steckverbindung Expired - Lifetime EP1012922B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19739576 1997-09-10
DE19739576A DE19739576A1 (de) 1997-09-10 1997-09-10 Elektrische Steckverbindung
PCT/EP1998/005614 WO1999013536A1 (de) 1997-09-10 1998-09-04 Elektrische steckverbindung

Publications (2)

Publication Number Publication Date
EP1012922A1 EP1012922A1 (de) 2000-06-28
EP1012922B1 true EP1012922B1 (de) 2001-12-19

Family

ID=7841771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98948908A Expired - Lifetime EP1012922B1 (de) 1997-09-10 1998-09-04 Elektrische steckverbindung

Country Status (8)

Country Link
US (1) US6464526B1 (cs)
EP (1) EP1012922B1 (cs)
AU (1) AU733014B2 (cs)
CA (1) CA2303161C (cs)
CZ (1) CZ293093B6 (cs)
DE (2) DE19739576A1 (cs)
ES (1) ES2169559T3 (cs)
WO (1) WO1999013536A1 (cs)

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Also Published As

Publication number Publication date
CZ2000186A3 (cs) 2000-09-13
DE59802562D1 (de) 2002-01-31
CA2303161C (en) 2005-04-05
AU9536398A (en) 1999-03-29
CA2303161A1 (en) 1999-03-18
US6464526B1 (en) 2002-10-15
EP1012922A1 (de) 2000-06-28
ES2169559T3 (es) 2002-07-01
DE19739576A1 (de) 1999-03-25
AU733014B2 (en) 2001-05-03
WO1999013536A1 (de) 1999-03-18
CZ293093B6 (cs) 2004-02-18

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