Source: https://patents.google.com/patent/EP2290758B1/en
Timestamp: 2019-10-18 04:15:09
Document Index: 417138594

Matched Legal Cases: ['art 3', 'art 5', 'art 3', 'art 5', 'art 3', 'art 3', 'art 5', 'art 3', 'art 3', 'art 3', 'art 3', 'art 5', 'art 5', 'art 5', 'art 5', 'art 3', 'art 5', 'art 3', 'art 5', 'art 3', 'art 5', 'art 3', 'art 3', 'art 5', 'art 3', 'art 3', 'art 7', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 63', 'art 65', 'art 67', 'art 24', 'art 31']

EP2290758B1 - Industry connector - Google Patents
Industry connector Download PDF
EP2290758B1
EP2290758B1 EP10006859.2A EP10006859A EP2290758B1 EP 2290758 B1 EP2290758 B1 EP 2290758B1 EP 10006859 A EP10006859 A EP 10006859A EP 2290758 B1 EP2290758 B1 EP 2290758B1
EP10006859.2A
EP2290758A1 (en
2011-03-02 Publication of EP2290758A1 publication Critical patent/EP2290758A1/en
2016-09-07 Publication of EP2290758B1 publication Critical patent/EP2290758B1/en
The invention relates to an industrial connector, comprising a base part and a plug-in part which can be plugged together with the base part.
Heavy industrial connectors, still referred to simply as connectors, are specifically designed for use in harsh environments. Such industrial connectors usually comprise a base part and a plug-in part for mating with the base part. Both the base part and the male part have a contact insert, which is accommodated in a usually metallic housing. The housing is in particular a die-cast part and offers the contact approach reliable protection against the environmental influences. Industrial connectors are used e.g. used in the automotive industry, mechanical and plant engineering, conveyor systems, as well as in measurement and control technology and can depending on the application, contact inserts with e.g. 6- to 92-pin version have.
When industrial connectors are used, it is important to take into account the radiation emitted by the connectors and / or out of the connectors, as this could affect the functionality of the connected or surrounding systems. In this case, a distinction is made between electric and magnetic fields.
The basis for determining these quantities is the standard IEC 60603-7-3 (2008-01). With the aid of this standard, Z K can be calculated from the measured values for the screen attenuation.
From the US 6,129,586 is known a special electrical connector for high frequencies, which is preferably used in the field of data communication. This connector is essentially formed from two plug-compatible components, each having a shield. This shield is held on the other hand form-fit between the contacts on the one hand and the element housing. Although this shielding is functionally very effective. Due to the positive retention of the shield but must be adapted in their design to the shape of the connector housing on the one hand and the contacts on the other.
The same problem also exists in the case of the US 5,618,202 known connectors for coaxial cable.
The invention has for its object to enable a particularly simple to produce shielding an industrial connector.
The object is achieved by an industrial connector, according to claim. 1
The industrial connector, for example, is a connector according to IEC 60603-7-3.
The invention is based on the consideration that a particularly simple to produce shielding of the industrial connector is given by a two-part metallic frame, wherein a first frame plate on the base part and a second frame plate is arranged on the male part. The frame plates are dimensioned and positioned so that they overlap at least partially in the assembled state of the industrial connector and thus form a Faraday cage, which increases the absorption in particular with respect to magnetic radiation. In the assembled state of the base part and the male part, the frame plates engage with each other so that they lie on one another and form a closed frame. By "partially overlapping" is meant here that in the assembled state of the connector, a closed and uninterrupted frame is formed only by the meshing of the frame plates, which surrounds the contact area of the contact inserts, with a large overlap for both frame plates is not required. Each of the frame plates is with the corresponding Contact insert coupled, so that a change of the metallic housing is not required. A significant advantage of this design is thus that the two-part frame can be subsequently integrated into existing industrial connectors.
Conveniently, the frame panels are formed of a low impedance conductive material. To mimic the formation of a unitary, one-piece frame, the frame panels are advantageously made of the same material, e.g. made of galvanized steel, copper or brass.
A particularly simple and reliable connection between the frame plates and the contact inserts is present in that the frame plates are preferably screwed to the respective contact insert. The frame plates can also be coupled by another force, positive or cohesive connection with the contact inserts or alternatively with the housing.
According to a preferred embodiment, the first frame plate protrudes on the base part of the metallic housing of the base part and aligned with the contact insert. In addition to the second frame plate is preferably disposed within the housing of the male part and aligned with this. In the assembled state of the industrial connector, the two housings are superimposed, so that the housing of the male part surrounds the protruding part of the contact insert of the base part and thus also the first frame plate. Since the second frame plate is aligned with the housing of the male part, it is ensured that both frame plates interlock.
A low resistance between upper and lower part is ensured by a large-scale screw. Preferably, therefore, a strip is fastened on both sides on the base part and on the plug-in part, wherein the strips have corresponding bores for receiving a through-bolt for screwing the base part to the plug-in part. With a view to secure attachment, the strips are expediently riveted to the base part and the male part. So that the strips lie flush against the housing is preferred provided between a rivet head and the bar a spring element. The spring element ensures that the strip is pressed firmly against the housing in the region of the respective rivet.
In a further embodiment, a frame plate is provided in the region of the transition from the housing wall to the base part of the industrial connector. This frame plate passes through the passage opening in the housing wall to the industrial connector with a collar. This collar is in the final assembled state of the housing of the base part. In this way, an electrical contact between the interior of the enclosure enclosed by the housing wall and the industrial connector is made. Thus, the transition from the housing, for example, a cabinet to the industrial connector receives effective EMC protection.
An embodiment of the invention will be explained in more detail with reference to a drawing. Herein show:
the exploded perspective view of the components of an industrial connector,
the front view of an exploded view of the components of the industrial connector according to Fig. 1 .
the section AA according to Fig. 2 .
an exploded perspective view of a fixable on a housing wall base part,
in a diagram measurement results for determining the coupling resistance of a commercially available connector, and
in a diagram measurement results for determining the coupling resistance of a connector with a two-part metallic frame.
Corresponding and equally acting parts are provided in all figures with the same reference numerals.
In Fig. 1 and Fig. 2 an industrial connector 1 is shown, which essentially comprises a base part 3 and a male part 5. The base part 3 comprises a multi-pole contact insert 7, which is arranged in the assembled state in a housing 9. The plug-in part 5 in turn comprises a further contact insert 11, which is designed to be complementary to the contact insert 7 of the base part 3 and accommodated in a further housing 13.
The industrial connector 1 also includes EMC (Electromagnetic Compatibility) measures for shielding the metallic housing 9,13. The EMC measures are designed in the manner of two metallic frame plates 15, 17 and are firmly connected in the assembled state of the base part 3 or of the plug part 5 with the contact inserts 7, 11. A first frame plate 15 is fitted onto the contact insert 7 and screwed by means of screws 19 thereto. The first frame plate 15 is dimensioned such that its outer edge 21 in the assembled state of the base part 3 is aligned with an outer edge 23 of the contact insert 7. Since the contact insert 7 protrudes partially out of the housing 9 of the base part 3, the frame plate 15 also projects out of the housing 9. To a margin of the base part 3, a seal 24 is also provided, which ensures that in the assembled state of the industrial connector 1, no air gap at the contact point between the base part 3 and the male part 5 is formed.
Similarly, the second metallic frame plate 17 is attached to the contact insert 11 of the male part 5 and screwed by means of screws 25 with this. The difference between the frame plates 15 and 17 is that the second frame plate 17 has a lower height, so that the frame plate 17 does not completely cover the over the housing 13 of the male part 5 protruding part of the contact insert 11. The height of the second frame plate 17 is selected such that in the assembled state of the male part 5, the second frame plate 17 is disposed within the housing 13 and an outer edge 27 of the frame plate 17 is aligned with an outer edge 29 of the housing 13.
The two frame plates 15, 17 thus represent a kind of extension of the respective housing 9, 13 and are dimensioned such that they overlap in the assembled state of the industrial connector 1. In this case, no large-area overlap of the two frame plates 15,17 is required, but they are only over a part of their height to each other, in particular over less than half their height, so that a continuous frame is formed, which surrounds the contact region of the contact inserts 7,11 , The frame acts as a Faraday cage, which in particular absorbs magnetic radiation at a low frequency and thus forms a shield of the industrial connector 1.
In the assembled state of the industrial connector 1, the base part 3 and the male part 5 are fixedly connected to each other, so that the contact between the two contact inserts 7 and 11 does not dissolve. For this purpose, a strip 31 is riveted on both sides of the base part 3 and the male part 5 on both sides. The strips 31 have corresponding, extending in the insertion direction of the industrial connector 1 holes 33 for receiving through-bolts 35. By means of the through-bolts 35, the base part 3 is screwed to the male part 5 in the assembled state of the industrial connector 1. For the rivets 37 33 further rivet holes 39 are also provided perpendicular to the holes.
From the section through the plane AA according to Fig. 2 who in Fig. 3 is shown enlarged, the attachment of a bar 31 on the base part 3 via a rivet 37 can be seen. In order to fix the strips 31 flush with the housing 9, a spring element 43 is arranged in the manner of a spring ring between a rivet head 41 and the strip 31, in this embodiment between the rivet head 41 and a bottom of the rivet hole 39.
In Fig. 4 only one base part 3 of an inventive industrial connector 1 is shown in an exploded view. In the insertion direction 45, in which the male part 5 is plugged onto the base part 3 for joining the industrial connector 1, the housing wall 47 is shown below the base part 3.
The housing wall 47 is in Fig. 4 only shown as cut from the solid section of the housing wall 47. The housing wall 47 may be part of a housing or a control cabinet or the like.
The housing wall 47 is in turn pierced by a through hole 49. The passage opening 49 serves for the passage of contacts, line elements or the like. In the exemplary embodiment, the passage opening 49 is used for line connection of the contact part 7 of the base part 3 with the in Fig. 4 not shown devices within the bounded by the housing wall 47 housing.
The passage opening 49 in the embodiment of Fig. 4 is rectangular. Also enclosed by the housing 9 of the base part 3 installation space for the contact insert 7 of the base part 3 has a rectangular cross-section. The installation space opening 51 of the housing 9 of the base part 3 is therefore also rectangular. In the embodiment of Fig. 4 the through-hole 49 and the installation space opening 51 are the same size and are aligned with each other in the final assembled state. The passage opening 49 and the installation space opening 51 are thus substantially congruent in the final assembly state.
In the final assembled state, the frame plate 53 with its collar 55 is inserted through the through-opening 49 and through the installation space opening 51 from the interior of the casing wall 47 delimited housing against the plug-in direction 45. In the final assembled state, the collar 55 bears against the inner wall of the installation space of the housing 9 of the base part 3.
The collar 55 flanks the frame opening 57 of the frame plate 53 circumferentially. The collar 55 is formed from a plurality of juxtaposed and at the same time resilient teeth 59. The collar 55 may be formed as a resilient strip, in which a plurality of vertical slots for forming the teeth 59 is introduced.
In the final assembled state, the collar 55 bears with its teeth 59 under spring pressure on the inside of the housing walls of the housing 9 of the base part 3. In this way, an electrical contact between the housing wall 47 and the housing 9 of the base part 3 is realized. The teeth 59 are effective in the manner of contact blades. The initially EMC-unprotected or EMVungschirmte area of the interface between the housing wall 47 and base 3 is replaced by this measure also effective EMC protection.
On the frame plate 53, a circumferential mounting flange 61 is formed. The mounting flange 61 is penetrated by holes 63 which are aligned with the housing wall 47 passing through holes 65 and provided in the housing 9 of the base part 3 mounting holes 67. In the final assembled state 45, the mounting holes 67, the through holes 65 and the holes 63 in the frame plate 53 of bolt 69 passes in the insertion direction. The bolts 69 are in turn bolted to nuts 71. The screwing of the bolt 69 with the nuts 71 sets the base part 3 of the industrial connector 1 on the housing wall 47 and fixed at the same time the frame plate 53 on the housing wall 47th
The efficiency of the EMC framework was tested and compared with a commercially available REVOS ® -Steckverbinders Wieland. In the measurements, the coupling resistance of the connectors was plotted over a frequency range of 150 kHz to 10 MHz. The measurements have shown that the connector known from the prior art reaches a screen attenuation value of about -50 dB at a test frequency of 10 MHz ( Fig. 4 ). This corresponds to a coupling resistance or a transfer impedance of approx. 160mOhm / m. With the same connector, which is supplemented by the two-part EMC frame described above, a value of about 76 dB at 10 MHz has been achieved ( Fig. 5 ). This corresponds to a transfer impedance of 8mOhm / m. The shielding has thus been improved by a factor of 20.
1 industrial Connectors 55 collar 3 base 57 frame opening 5 male member 59 tooth 7 Contact insert d. base 61 mounting flange 9 Housing of the base part 63 drilling 11 Contact insert d. plug-in part 65 Through Hole 13 Housing of the male part 67 mounting hole 15 first frame sheet 69 bolts 17 second frame sheet 71 nuts 19 screw 21 outer edge of the first frame sheet 23 outer edge of the contact insert of the base part 24 poetry 25 screw 27 outer edge d. second frame sheet 29 outer edge d. Housing of the male part 31 strip 33 drilling 35 Through bolt 37 rivet 39 rivet hole 41 rivet head 43 spring element 45 plug-in direction 47 housing wall 51 Installation space opening 53 frame plate
Industrial plug connector (1) comprising a base part (3) and a plug part (5) that can be plugged into the base part (3), the base part (3) and the plug part (5) each comprising a contact insert (7, 11) and a metal housing (9, 13), and a first metal frame plate (15) being arranged on the base part (3) and a second metal frame plate (17) being arranged on the plug part (5) such that, in the plugged-in state, the two frame plates (15, 17) overlap one another at least in part,
the metal frame plates (15, 17) are rigidly connected to the contact inserts (7, 11) when the base part (3) and the plug part (5) are in the assembled state.
Industrial plug connector (1) according to claim 1, wherein the frame plates (15, 17) are formed of a low-impedance, conductive material, in particular galvanised sheet steel.
Industrial plug connector (1) according to either claim 1 or claim 2, wherein the frame plates (15, 17) are each screwed to one contact insert (7, 11), respectively.
Industrial plug connector (1) according to any of the preceding claims, wherein the first frame plate (15) projects from the housing (9) of the base part (3) and is aligned with the contact insert (7).
Industrial plug connector (1) according to any of the preceding claims, wherein the second frame plate (17) is arranged inside the housing (13) of the plug part (5) and is aligned with the housing (13).
Industrial plug connector (1) according to any of the preceding claims, wherein a strip (31) is attached on either side of the base part (3) and of the plug part (5), respectively, and wherein the strips (31) comprise corresponding holes (33) for receiving a through-screw (35) for screwing the base part (3) to the plug part (5).
Industrial plug connector (1) according to claim 6, wherein the strips (31) are fasted with rivets to the base part (3) and to the plug part (5).
Industrial plug connector (1) according to claim 7, wherein a spring element (43) is provided between a rivet head (41) and the strip (31).
Industrial plug connector (1) in particular according to any of claims 1 to 8, comprising a base part fastened to a housing wall (47), comprising a receiving chamber for a contact insert (7), and comprising a through-hole (49) in the housing wall (47) which leads into the receiving chamber,
a frame plate (53) which can be adapted to the through-opening (49) and projects into the through-opening (49) by a collar (55), the collar (55) abutting at least in part the inner wall of the housing (9) of the base part (3) in the final assembled state.
Industrial plug connector (1) according to claim 9,
the frame plate (53) comprises an assembly flange (61) and a collar (55) which protrudes out of the assembly flange (61) and rests flush on the edge of the through-opening (49) in the final assembled state.
Industrial plug connector according to either claim 9 or claim 10,
the collar (55) consists of a plurality of sprung teeth (59) which are arranged side by side and rest against the inner wall of the housing (9) of the base part (3) under spring pressure in the final assembled state.
EP10006859.2A 2009-08-26 2010-07-02 Industry connector Active EP2290758B1 (en)
EP2290758A1 EP2290758A1 (en) 2011-03-02
EP2290758B1 true EP2290758B1 (en) 2016-09-07
EP10006859.2A Active EP2290758B1 (en) 2009-08-26 2010-07-02 Industry connector
US9912105B2 (en) 2018-03-06 Coaxial cable connector with integral RFI protection
JPH08222880A (en) 1996-08-30 Emi-shielding enclosure
JP3936859B2 (en) 2007-06-27 Coaxial connector and a method of manufacturing the same, and electromagnetic wave leakage suppression method using the coaxial connector
Ref document number: 827601
Ref document number: 502010012335