Source: https://patents.google.com/patent/US20020111067A1/en
Timestamp: 2018-05-23 22:12:22
Document Index: 3052038

Matched Legal Cases: ['art 53', 'art 53', 'art 54', 'art 53', 'art 54', 'art 53', 'art 54']

US20020111067A1 - Cable connecting structure - Google Patents
Cable connecting structure Download PDF
US20020111067A1
US20020111067A1 US10121722 US12172202A US2002111067A1 US 20020111067 A1 US20020111067 A1 US 20020111067A1 US 10121722 US10121722 US 10121722 US 12172202 A US12172202 A US 12172202A US 2002111067 A1 US2002111067 A1 US 2002111067A1
US10121722
US6623300B2 (en )
A cable connecting structure includes a shroud adapted to be mounted on a panel carrying pins, the shroud having a shroud body enclosing the pins when the shroud is mounted on the panel and including a plurality of compartments, and a shielding member provided on the shroud body so as to cover an inner wall of the shroud body. The shielding member provide electromagnetic shielding so as to improve the electromagnetic compatibility of the connecting structure.
The present invention relates generally to a cable connecting structure, and more particularly, to a cable connecting structure having improve electromagnetic compatibility.
[0007]FIG. 1 shows a conventional connector apparatus 10. Reference numeral 11 represents the interior of the communications apparatus. Reference numeral 12 represents the back panel of the communications apparatus. A plug 14 having long pins 13 is mounted on a front surface of the back panel 12. The pins 13 penetrate through-holes 12 a formed in the back panel 12 and project beyond a back surface side of the back panel. Inside the communications apparatus a jack 15 is connected to the plug 14.
a pull tab on a side from which
a cable is extended; and
[0047]FIG. 1 is a diagram showing a conventional connector apparatus;
[0048]FIG. 2 is a diagram showing a connector apparatus according to a first embodiment of the present invention;
[0049]FIG. 3 is a diagram showing the connector apparatus of FIG. 2 in a state prior to connection;
[0050]FIG. 4 is a diagram showing the connector apparatus of FIG. 2 in a state of connection;
[0051]FIG. 5 is a diagram showing the connector apparatus of FIG. 2 in a state when released from connection;
[0052]FIG. 6 is a diagram showing a disposition atop a back panel of a shroud;
[0053]FIG. 7 is an exploded view of the shroud;
[0054]FIGS. 8A, 8B and 8C are side, top and front views, respectively, of the shroud;
[0055]FIG. 9 is a cross-sectional view along a line IX-IX of the shroud of FIG. 7;
[0056]FIG. 10 is a cross-sectional view along a line X-X of the connector apparatus of FIG. 2;
[0057]FIG. 11 is a cross-sectional view along a line XI-XI of the shroud of FIG. 8;
[0058]FIGS. 12A and 12B show an arrangement of grooves on shroud compartments designed to prevent improper insertion of a plug therein;
[0059]FIG. 13 is an exploded view of a cable connector;
[0060]FIG. 14 is an exploded view of a housing;
[0061]FIGS. 15A and 15B are diagrams showing exploded and frontal views of a structure of a projection and a surrounding area thereof, respectively;
[0062]FIG. 16 is an exploded view of a variation of the shroud;
[0063]FIG. 17 is a cross-sectional view along a line XVII-XVII of the shroud of FIG. 16;
[0064]FIG. 18 is a diagram showing a state of connection of a connector apparatus according to a second embodiment of the present invention;
[0065]FIG. 19 is an exploded view of the plug shown in FIG. 18;
[0066]FIG. 20 is an oblique view of a connector according to a third embodiment of the present invention;
[0067]FIG. 21 is an exploded view of the connector of FIG. 20;
[0068]FIG. 22 is a cross-sectional view along a line XXII-XXII of the connector of FIG. 20;
[0069]FIGS. 23A and 23B are partial side and cross-sectional views along a line B-B, respectively, of a variation of a shield plate;
[0070]FIGS. 24A, 24B and 24C are diagrams showing steps in a process of unlocking a plug from the shroud according to a fourth embodiment of the present invention;
[0071]FIG. 25 is an exploded view of essential elements of a plug according to a fifth embodiment of the present invention;
[0072]FIGS. 26A, 26B and 26C are diagrams showing steps in a process of unlocking the plug from the shroud shown in FIG. 25;
[0073]FIG. 27 is an exploded view of essential elements of a plug according to a sixth embodiment of the present invention;
[0074]FIGS. 28A, 28B and 28C are diagrams showing steps in a process of unlocking the plug from the shroud shown in FIG. 27;
[0075]FIGS. 29A, 29B and 29C are diagrams showing steps in a process of unlocking a plug from the shroud according to a seventh embodiment of the
[0076]FIGS. 30A, 30B and 30C are diagrams showing steps in a process of unlocking a plug from the shroud according to an eighth embodiment of the present invention; and
[0077]FIGS. 31A and 31B are exploded views of essential elements of the plug shown in FIG. 30.
[0079]FIG. 2 is an exploded view of a connector assembly according to a first embodiment of the present invention, FIG. 3 shows a state prior to connection and FIG. 4 shows a state after connection. FIG. 5 shows a state in which the connection has just been released. In the drawings, reference numeral 21 is a communications apparatus and 22 is a back panel of the communications apparatus. An interior 21 a of the communications apparatus 21 is the same as the conventional art. A plug 24 having long pin terminals 23 is mounted on a front surface of the back panel 22, that is, a surface on an interior side of the communications apparatus 21, the pins 23 penetrating through-holes 22 a formed in the back panel 22 and projecting into a rear side surface of the back panel 22. A jack 25 is connected to the plug 24 in the interior 21 a of the communications apparatus 21.
As shown in FIG. 2, the pin group 31 consists of a plurality of pin terminal sub-groups 32-1, 32-2, 32-3 and so forth, aligned in a vertical direction as indicated by the arrows Z1-Z2. The pin terminal sub-group 32-1, for example, comprises pins 33-1 through 33-14 aligned in two parallel rows of seven pins each in a lateral direction as indicated by the arrows X1 -X2. Pins 33-1 through 33-14 comprise signal ground pins 33-1, 33-7, 33-8 and 33-14 at both ends in the X1-X2 direction and the remaining signal pins. The signal pins comprise positive signal pins 33-2 through 33-6 aligned laterally on the Z1 side and negative signal pins 33-9 through 33-13 aligned laterally on the Z2 side. Positive signal pin 33-2 and negative signal pin 33-9 are disposed opposite each other, and make up a pair.
As shown in FIGS. 8A, 8B and 8C, the shroud body 41 comprises rectangular longer side panels 41 a and 41 b, shorter side panels 41 c and 41 d, bottom panel 41 e, a plurality of partitions 41 f and a plurality of stand-offs 41 g and 41 h dispersed and projecting from the side panels 41 a and 41 b.
The plurality of partitions 41 f are aligned so as to be evenly spaced in the vertical Z1-Z2 direction. The stand-offs 41 g and 41 h are formed at positions corresponding to each of the plurality of partitions 41 f. Rectangular openings 41 a 1 and 41 b 1 are formed in the side panels 41 a and 41 b at positions between adjacent partitions 41 f.
For convenience, FIG. 9 shows a cross-sectional view of the shroud body 41 in a state in which the metallic shield plates 42 and 43 are removed. In the drawing, reference numerals 45 and 46 are narrow spaces for inserting the shield plates 42 and 43.
As shown in FIG. 10 and FIG. 11, the shield plates 42 and 43 are provided inside the narrow spaces 45 and 46 mentioned previously. The bodies 42 a and 43 a are exposed on an inner side of the shroud body 41 at the side panels 41 a and 41 b, and moreover are suppressed by both edges of each partition 41 f. Lock openings 42 a 1 and 41 a 1 align, as do lock openings 43 a 1 and 41 b 1. Openings 41 a 1 and 41 b 1 are formed by projections of a mold that engage the lock openings 42 a 1 and 43 a 1 during insert molding. These openings 41 a 1 and 41 b 1 are used for visually checking the lock condition of the plug 51. The stand-offs 41 g and 41 h cover the leads 42 b and 43 b. Pins 42 c and 43 c project from the tips of the stand-offs 41 g and 41 h.
The shroud 40 is divided by partitions 41 f into a plurality of shroud compartments 44-1 through 44-8.
As shown in an expanded fashion in FIG. 12A, the grooves 47 are arranged so as to be asymmetrically distributed with respect to a center point 01 of any given shroud compartment 44-1, etc. Doing so prevents not only insertion of an incorrect plug 51 but also prevents even upside-down insertion of the correct plug 51.
Additionally, as shown in FIG. 12B, if the grooves 100 for preventing improper insertion of a plug 51 are formed at the same position on both the top surface 41 fa′ and the bottom surface 41 fb′ of the partition 41 f′ in a direction of a thickness of the partition 41 f, a thickness t1 of the partition increases, which is not preferable. In the present embodiment, the grooves in the top and bottom surfaces of the partition 41 f are offset from each other with respect to the direction of the thickness of the partition 41 f, that is, in a vertical Z1-Z2 direction. Accordingly, a thickness t2 of the partition 41 f decreases, shortening a distance or pitch c between adjacent shroud compartments 44-1 through 44-8 and also shortening the length L of the shroud 40 in the vertical Z1-Z2 direction.
The first signal contact 53 has a forkshaped first pin contacting part 53 a on a forward Y1 side tip of the first signal contact 53 and a forkshaped first wire mounting 53 b projecting upward in the Z1 direction, the first wire mounting 53 b located at a rear Y2 side tip of the first signal contact 53. At an intermediate point the first signal contact 53 has a bent portion 53 c of length a and has a substantially crank-shaped form from the forward Y1 direction toward the rear Y2 direction, the arm of the crank dropping downward in the Z2 direction.
As seen in an exploded view in FIG. 14, the pin contacting part retainer 52 a comprises two rows of seven tunnels, including seven upper tunnels 52 a 1 through 52 a 7 aligned side by side in a lateral X1-X2 direction at a height H1 and seven lower tunnels 52 a 8 through 52 a 14 also arranged side by side in the lateral X1-X2 direction at a height H2. An X1 side of tunnels 52 a 1 and 52 a 8 on an X1 side edge are open to form a window 52 a 15, and a window 52 a 16 is similarly formed on an X2 side of tunnels 52 a 7 and 52 a 14 on an X2 side edge. Into these windows 52 a 15 and 52 a 16 are inserted contacts 58Bb2, 58Bb3, 58Bc2 and 58Bc3, shown in FIG. 19 and to be described later.
The first signal contact 53 is attached in such a way that the first pin contacting part 53 a is inserted into the upper H1-position tunnels 52 a 2 through 52 a 6, that is, excepting the two tunnels 52 a 1 and 52 a 7 at both sides, and the first wire mounting 53 b is engaged by the wire mounting positioning groove 52 b 1. The second signal contact 54 is attached in such a way that the second pin contacting part 54 a is inserted into the lower H2-position tunnels 52 a 9 through 52 a 13, that is, excepting the two tunnels 52 a 8 and 52 a 14 at both sides, and the second wire mounting 54 b is engaged by the groove 52 b.
From the longitudinal Y1-Y2 direction, the first pin contacting part 53 a and the second pin contacting part 54 a are in the same position, with the first wire mounting 53 b disposed closer to a forward Y1 direction than the second wire mounting 54 b by a dimension b as seen in FIG. 13. This dimension b is equivalent to the length a of the bent portion 53 c described above. Accordingly, a length along the first contact 53 between the first pin contacting part 53 a and the first wire mounting 53 b of the first signal contact 53 is equivalent to a length along the second contact 54 between the second pin contacting part 54 a and the second wire mounting 54 b of the second signal contact 54. As will be explained later, this is to prevent the occurrence of a time lag, or skew, between the positive signal and the negative signal of a differential data transfer.
Additionally, the keys 55 e are arranged so as to be asymmetrical with respect to a center 02 of a edge surface in the forward Y1 direction of the pin contacting part retainer 52 a. Accordingly, even upside-down insertion of the correct plug 51 is prevented.
The cable 50 has at its tip a shield mesh 70 which, together with a tongue portion 58 d of the lower shield cover 58 and a tongue portion 59 d of the upper shield cover 59, is clamped by a metallic ring 61 compressed and fixedly mounted to the plug 51. A positive signal wire 71 and a negative signal wire 72 of the same length are extended from the tip of the cable 50. The first wire mounting 53 b is pressed onto the tip of the positive signal wire 71 is pressed into the first wire mounting 53 b an d the tip of the negative signal wire 72 is pressed onto the second wire mounting 54 b, and, further, are suppressed by the wire retaining member 55 and connected to the first signal contact 53 and to the second signal contact 54, respectively. The wire retaining member 55 engages an interior of the housing 52 and its movement in the longitudinal Y1-Y2 direction is restricted.
The latch members 56 and 57 have at a front edge hooks 56 a and 57 a, respectively, at a base side bent portions 56 b and 57 b, and shallow U-shaped base intermediate portions 56 c and 57 c. As shown also in FIG. 5, the bent portions 56 b and 57 b on the base sides of the latch members 56 and 57 engage a concavity 52 f of the housing 52, and further, an outer side is elastically suppressed by side panels 58 b and 58 c of the lower shield cover 58. The base portions 56 c and 57 c advance into the inside of the housing 52 by passing through the housing window 52 g. The base portions 56 c and 57 c have inclined portions 56 c 1 and 57 c 1 near the bent portions 56 b and 57 b.
As shown in FIG. 13, the lower shield cover 58 comprises a bottom panel 58 a, side panels 58 b and 58 c in both lateral X1 and X2 directions and a tongue portion 58 d on a rear Y2 side thereof. The upper shield cover 59 comprises a cover panel 59 a, side panels 59 b and 59 c in both lateral X1 and X2 directions and a tongue portion 59 d on a rear Y2 side thereof. The lower shield cover 58 and the upper shield cover 59 are mounted so that the bottom panel 58 a covers a bottom surface of the housing 52, the cover panel 59 a covers the first signal contact 53 and the second signal contact 54, thus enclosing the whole of the housing 52. Side panels 59 b and 59 c are positioned outside of side panels 58 b and 58 c.
Outwardly projecting contacts 59 b 2 and 59 c 2 are formed on the side panels 59 b and 59 c of the upper shield cover 59, near the forward Y1 edge of thereof. These contacts 59 b 2 and 59 c 2 contact the shield plates 42 and 43. Further, openings 58 b 2, 58 b 3, 58 c 2 and 58 c 3 are formed on the side panels 58 b and 58 c of the lower shield cover 58, near a forward Y1 edge thereof and at positions corresponding to windows 52 a 15 and 52 a 16. These are for electrically dividing the signal ground and the frame ground.
The lock release member 60 comprises a box 60 a, arms 60 b and 60 c extending from the lateral X1-X2 sides of the box 60 a parallel to the Y1 direction, projections 60 d and 60 e projecting so as to oppose an inner side of an edge in the forward Y1 direction of the arms 60 b and 60 c, and a pull tab 60 f extending toward a rear Y2 direction from the box 60 a.
As depicted in FIG. 3, the box 60 a just encloses the tip of the cable 50, and a forward Y2 edge portion of the upper shield cover 59 and the lower shield cover 58.
Additionally, hooks 56 a and 57 a engage openings 41 a 1 and 41 b 1, locking plug 51 into shroud compartment 44-1. As a result, the plug 51 will not come loose from the shroud 40 even if the cable 50 were to be mistakenly pulled with a strong force F1. Additionally, this force F1 is absorbed by the metallic shield plates 42 and 43, so the plastic shroud body 41 is not cracked or otherwise damaged.
Additionally, when viewed from the front the shroud 40 is mounted in such a way that each of the shroud compartments 44-1 is fixedly mounted to the back panel 22 at the four corners of the shroud openings by the leads 42 b and 43 b and the press-fit pins 42 c and 43 c. Additionally, the force F1 is also absorbed by the press-fit pins 42 c and 43 c pressed into the through-holes 35 in the back panel 22 at shroud compartments other than shroud compartment 44-1. Accordingly, the shroud 40 does not come loose from the back panel 22.
The tag 75 and the pull tab 60 f are pulled in the Y2 direction. By this operation, as shown in FIG. 5, the lock release member 60 moves in the Y2 direction, the projections 60 d and 60 e press the inclined portions 56 c 1 and 57 c 1 of the latch members 56 and 57, the latch members 56 and 57 are in turn elastically bent in the direction of a center of the plug 51, the hooks 56 a and 57 a are released from the openings 41 a 1 and 41 b 1 and the lock released. At the same time as the lock is released an inner surface 60 b 1 a and 60 c 1 a in the Y1 direction of the openings 60 b 1 and 60 c 1 contact the projections 52 c and 52 d, a force pulling on the tag 75 or the pull tab 60 f is transmitted to the housing 52, the plug 51 is extracted from the shroud compartment 44-1 and the connection of the plug 51 to the shroud compartment 44-1 is released. That is, the single operation of pulling the tag 75 and the pull tab 60 f in the rear Y2 direction accomplishes the two operations of releasing the lock and extracting the plug 51. The operation of releasing the connection of the plug 51 is achieved by the single operation of pulling the tag 75 or the pull tab 60 f in the Y2 direction, thus improving operability.
[0143]FIG. 18 shows a connected state of a connector assembly 20B according to a second embodiment of the present invention. The connector assembly 20B has a structure suitable for a case in which the signal ground of the back panel 22 has the same potential as the frame ground, the only difference between the present embodiment and the first embodiment of the connector assembly 20 being a plug 51B. As shown in FIG. 19, the plug 51B differs from the plug 51 above only with respect to the lower shield cover 58B. The lower shield cover 58B differs from the lower shield cover 58 shown in FIG. 13 only in that contacts 58Bb2, 58Bb3, 58Bc2 and 58Bc3 which project into an interior of the lower shield cover 58B are formed at the location of openings 58 b 2, 58 b 3, 58 c 2 and 58 c 3.
As shown in FIG. 18, a plug 51B is connected to the shroud 40. Contacts 58Bb2, 58Bb3, 58Bc2 and 58Bc3 contact signal ground pins 33-1, 33-7, 33-8 and 33-14. Accordingly, the potential at the signal ground of the back panel 22 is the same as that at the frame ground of the back panel 22 via the lower shield cover 58B and the upper shield cover 59, and further, the shield plates 42 and 43.
The shroud body 41C comprises rectangular longer side panels 41Ca and 41Cb, shorter side panels 41Cc and 41Cd, bottom panel 41Ce and a plurality of partitions 41Cf. The plurality of partitions 41Cf are aligned so as to be evenly spaced in the vertical Z1-Z2 direction. Grooves 47C for preventing the mistaken or improper insertion of a plug are formed on the top and bottom surfaces of the partitions 41Cf.
The shield plates 42C and 43C comprise bodies 42Ca and 43Ca having approximately the same size as the side panels 41Ca and 41Cb and a plurality of press-fit pins 42Cc and 43Cc projecting from the bodies 42Ca and 43Ca like the teeth of a comb at positions corresponding to the shroud compartments 44C-1 through 44C-8.
The plurality of pins 81 are pressed into a plurality of through-holes 41Ce1 in the bottom panel 41Ce and mounted thereto, and arranged in two rows at each shroud compartment 44C-1 through 44C-8. The pins 81 have portions 81 a that project into the interior of the shroud compartments 44C-1 through 44C-8 and portions 81 b that project from a bottom surface of the shroud 40C.
[0154]FIG. 24A shows a state in which a plug 100 is connected to and locked to the shroud 40, FIG. 24B shows a state just prior to unlocking of the plug 100 and FIG. 24C shows a state after the plug 100 has been unlocked. In FIGS. 24A, 24B and 24C, elements identical to the structural elements of plug 51 of the first embodiment described above are given the same reference numerals, and a description thereof omitted.
[0162]FIG. 25 is an exploded view of essential elements of a plug 110 according to this fifth embodiment of the present invention. FIGS. 26A, 26B and 26C are diagrams showing steps in a process of unlocking the plug 110 from the shroud 40.
[0163]FIG. 26A shows a state in which the plug 110 is connected to and locked to the shroud 40, FIG. 26B shows a state just prior to unlocking of the plug 110 and FIG. 26C shows a state after the plug 110 has been unlocked. In FIGS. 26A, 26B and 26C, elements identical to the structural elements of plug 51 of the first embodiment described above are given the same reference numerals, and a description thereof omitted.
[0172]FIG. 27 is an exploded view of essential elements of a plug 120 according to a sixth embodiment of the present invention. Additionally, FIGS. 28A, 28B and 28C are diagrams showing steps in a process of unlocking the plug 120 from the shroud 40. FIG. 28A shows a state in which the plug 120 is connected to and locked to the shroud 40, FIG. 28B shows a state just prior to unlocking of the plug 120 and FIG. 28C shows a state after the plug 120 has been unlocked. In FIGS. 28A, 28B and 28C, elements identical to the structural elements of plug 51 of the first embodiment described above are given the same reference numerals, and a description thereof omitted.
[0180]FIGS. 29A, 29B and 29C are diagrams showing steps in a process of unlocking a plug 130 from the shroud 40. FIG. 29A shows a state in which the plug 130 is connected to and locked to the shroud 40, FIG. 29B shows a state just prior to unlocking of the plug 130 and FIG. 29C shows a state after the plug 130 has been unlocked.
In the present embodiment, when the lock release member 134 is moved in the Y2-direction with respect to the connector assembly 136 as shown in FIG. 29B from a state in which the plug 130 is connected to the shroud 40 as shown in FIG. 29A, the locked connection between the plug 130 and the shroud 40 is released. In the present embodiment, a large force can be generated between the lock release member 134 and the connector assembly 136 in a direction to pull the two together by the spring 134 a 1 formed on the housing 132 because the spring 134 a 1 elastically deforms in a direction of an extension of an overall length of the spring 134 a 1 immediately after the locked connection between the plug 130 and the shroud 40 is released.
[0188]FIGS. 30A, 30B and 30C are diagrams showing steps in a process of unlocking a plug 140 from the shroud 40. FIGS. 31A and 31B are exploded views of essential elements of the plug 140. FIG. 30A shows a state in which the plug 140 is connected to and locked to the shroud 40, FIG. 30B shows a state just prior to unlocking of the plug 140 and FIG. 30C shows a state after the plug 140 has been unlocked.
1. A shroud adapted to be mounted on a panel carrying pins, comprising:
2. The shroud as claimed in claim 1, wherein the shroud body has a plurality of dispersed stand-offs projecting from a bottom surface thereof and the shielding member has pins which project beyond the stand-offs.
3. The shroud as claimed in claim 1, wherein the shroud body has a groove for preventing an improper insertion of a plug.
4. The shroud as claimed in claim 1, wherein a lock engaging portion to be used for locking a connected plug is provided on the shroud body.
5. The shroud as claimed in claim 1, wherein the plurality of pins of the shielding member have a press-fit construction.
6. The shroud as claimed in claim 1, wherein the plurality of pins of the shielding member are dispersed like the teeth of a comb and project from the shroud body, each of the pins having a press-fit construction.
a shielding member having a body and a plurality of leads provided on the shroud body so that the body covers an inner wall of the shroud body and the leads project from a bottom surface of the shroud body; and
8. The connector as claimed in claim 7, wherein the shroud body has a groove for preventing an improper insertion of a plug.
9. The connector as claim in claim 7, wherein a lock engaging portion to be used for locking a connected plug is provided on a body of a shielding member.
US10121722 1999-04-01 2002-04-15 Cable connecting structure Expired - Fee Related US6623300B2 (en)
JP9502399 1999-04-01
JP11-95023 1999-04-01
JP11-191028 1999-07-05
JP19102899 1999-07-05
US09442096 US6394842B1 (en) 1999-04-01 1999-11-17 Cable connecting structure
US10121722 US6623300B2 (en) 1999-04-01 2002-04-15 Cable connecting structure
US09442096 Division US6394842B1 (en) 1999-04-01 1999-11-17 Cable connecting structure
US20020111067A1 true true US20020111067A1 (en) 2002-08-15
US6623300B2 US6623300B2 (en) 2003-09-23
ID=26436314
US09442096 Expired - Fee Related US6394842B1 (en) 1999-04-01 1999-11-17 Cable connecting structure
US10121722 Expired - Fee Related US6623300B2 (en) 1999-04-01 2002-04-15 Cable connecting structure
US (2) US6394842B1 (en)
JP (1) JP2009087953A (en)
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US6623300B2 (en) 2003-09-23 grant
JP2009087953A (en) 2009-04-23 application
US6394842B1 (en) 2002-05-28 grant