JP4530797B2 - Cable connector and connector assembly - Google Patents

Description

  The present invention relates to a cable connector and a connector assembly.

  Conventionally, a connector compliant with HDMI (R) (High-Definition Multimedia Interface), which is a digital interface standard for next-generation televisions, has been developed. By using a connector conforming to the HDMI (R), digital signals can be connected, and digital signals can be transmitted and received between an STB (Set Top Box) and the digital television. Of course, a digital interface standard called DVI (Digital Visual Interface) has been proposed as a standard for personal computers, but the DVI-compliant connector is large and only video signals can be connected. It was not suitable for digital home appliances such as digital TV. On the other hand, connectors conforming to HDMI (R) allow connection of audio signals and control signals in addition to video signals, and the pitch between terminals is small and miniaturized. Suitable for

However, in the connector, since the pitch between the terminals is small, when the diameter of the core of the signal line in the cable is large, that is, when the core is thick, it is difficult to solder the core to the terminal. End up. And the connection state of the soldered terminal and the core wire is likely to be uneven, and the impedance tends to be disturbed. Therefore, it is easy to solder the core wire to the terminals by widening the pitch between the terminal ends in the width direction or by distributing the terminal end portions up and down to widen the distance between the terminal end portions. A connector has been proposed (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 10-116647

  However, in the conventional connector, since the distance from the tip to the terminal of each terminal is not necessarily the same, if the core wires of a pair of differential signal pairs that transmit a differential signal are connected to the terminal, the differential signal plus The line length for transmitting the above signal and the line length for transmitting the negative signal are not the same, and signal skew occurs.

  The present invention solves the above-mentioned conventional problems, the first terminal where the contact portion is located in the same plane and the terminal portion of the second terminal are distributed in two stages, and the distance between the terminal portions of the pair of first terminals Is wider than the distance between the contact parts, the distance between the terminal part of the first terminal and the terminal part of the first terminal in the adjacent pair is wider, and the terminal part of the second terminal is larger than the terminal part of the first terminal. Even if the core wire of the cable is thick so that it extends backward, the soldering work between the core wire and the terminal end of the terminal can be performed easily and uniformly, and the signal skew in the differential signal can be reduced. It is an object of the present invention to provide a cable connector and a connector assembly that do not occur and can improve reliability.

Therefore, the cable connector of the present invention is a cable connector connected to the tip of the cable, and includes a contact portion that contacts the terminal of the mating connector and a terminal portion connected to the core wire of the cable. The first terminal and the second terminal are made of an insulating resin, and have a connector main body portion and a guide portion into which the first terminal and the second terminal are inserted . A core wire is connected, a core wire of a ground wire is connected to a terminal portion of the second terminal, and a terminal portion of the first terminal and the second terminal where the contact portion is located in the same plane is divided into two stages, The terminal part of the first terminal and the terminal part of the second terminal are located in separate planes, and at least the distance between the terminal parts of the first terminal is wider than the distance between the contact parts.

  In the other cable connector of the present invention, the distance between the terminal portions of the two first terminals combined as a pair is narrower than the distance between the terminal portions of the first terminal in the adjacent pair.

  In still another cable connector according to the present invention, the plane on which the terminal portion of the second terminal is located is closer to the center side of the cable connector than the plane on which the terminal portion of the first terminal is located, and the rear end. Located on the side.

  In still another cable connector of the present invention, the core wire connected to the terminal portion of the first terminal is covered with an insulating coating in the range of the plane where the terminal portion of the second terminal is located. Yes.

  In still another cable connector according to the present invention, the two first terminals combined as the pair have the same line length, and each of the terminal portions of the two first terminals has a differential signal pair. The core wires are connected to each other.

  In yet another cable connector according to the present invention, the two signal lines of the differential signal pair line may have a top surface of the insulating coating in a range of a plane where the terminal portion of the second terminal is located. The two signal lines are covered with a bundling coating.

In the connector assembly of the present invention, the first terminal and the second terminal each having a cable, a contact part that contacts the terminal of the mating connector, and a terminal part connected to the core wire of the cable, and an insulating resin A connector main body portion and a guide portion into which the first terminal and the second terminal are inserted, a core wire of a signal line is connected to a terminal portion of the first terminal, and a ground wire is connected to a terminal portion of the second terminal core wire of the line is connected, the end of the first terminal and a second terminal to which the contact portion is positioned in the same plane are distributed in two stages, and the end portion of the second terminal and the terminal end portion of the first terminal Each of which is located in a plane of a separate step, and at least the interval between the terminal portions of the first terminals is wider than the interval between the contact portions, and the cable connector connected to the tip of the cable, and the cable connector Installed around It was having a shield case for the connector.

  According to the present invention, in the cable connector, the terminal portions of the first terminal and the second terminal where the contact portion is located in the same plane are distributed in two stages, and the distance between the terminal portions of the pair of first terminals is the contact portion. The distance between the terminal end of the pair of first terminals and the terminal end of the first terminal in the adjacent pair is wider, and the terminal end of the second terminal extends backward than the terminal end of the first terminal. It comes to exist. Therefore, even if the core wire of the cable is thick, the soldering work between the core wire and the terminal end of the terminal can be performed easily and uniformly, and there is no signal skew in the differential signal. Can be improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an upper perspective view showing a cable connector in the embodiment of the present invention, and FIG. 2 is a lower perspective view showing the cable connector in the embodiment of the present invention.

  In FIGS. 1 and 2, reference numeral 10 denotes a cable connector in the present embodiment, which is connected to the tip of the cable 30. The cable connector 10 and the cable 30 may be any type of connector and cable. In the present embodiment, for convenience of explanation, the cable connector 10 and the cable 30 are digital interfaces for next-generation televisions. A case where the connector and cable comply with the standard HDMI (R) will be described. The cable connector 10 is connected by fitting with a mating connector (not shown) arranged in a digital home appliance such as a digital television.

  Further, in the present embodiment, expressions indicating directions such as upper, lower, left, right, front, rear, etc. used for explaining the configuration and operation of each part of the cable connector 10 and the cable 30 are absolute. The cable connector 10 and the cable 30 are appropriate when the cable connector 10 and the cable 30 are in the posture shown in the drawing, but the posture of the cable connector 10 and the cable 30 is changed when the posture is changed. It should be interpreted according to changes. In the present embodiment, for convenience of explanation, only the portion near the tip of the cable 30 is shown, and the other portions are not shown.

  Here, the cable connector 10 includes a connector main body 11 and a guide 12 formed of an insulating resin, and the connector main body 11 and the guide 12 have a plurality of conductive metals described later. The terminal is loaded. The connector main body 11 includes engagement pieces 11 a that engage with the guide portion 12 on both sides, and the connector main body 11 and the guide portion are engaged by engaging the engagement pieces 11 a with both side portions of the guide portion 12. 12 are connected to each other. In addition, a plurality of engaging recesses 13 are formed on the surface of the connector main body 11 to engage with the engaging member of the mating connector when the cable connector 10 is fitted to the mating connector.

  A plurality of guide grooves 16 are formed in the guide portion 12, and terminal end portions to be described later are accommodated in the guide grooves 16. Note that the terminal end portions of the terminals may not necessarily be accommodated in all the guide grooves 16. And the core wire 35 of the cable 30 is connected to the terminal part of the terminal in the guide groove 16 by soldering. 1 and 2, reference numeral 31 denotes a covering of the cable 30, 32 is a differential signal line in the cable 30, 33 is an independent signal line in the cable 30, 36 is a power line in the cable 30, and 34 is included in the differential signal line 32. Differential signal pair line. The differential signal line 32 also includes a differential signal ground line 34a described later.

  Next, the configuration of the cable connector 10 will be described in detail.

  3 is a front view showing the distal end surface of the cable connector in the embodiment of the present invention, FIG. 4 is a top view of the cable connector in the embodiment of the present invention, and FIG. 5 is for the cable in the embodiment of the present invention. It is a sectional side view of a connector. 5A is a cross-sectional view taken along the line BB in FIG. 4, and FIG. 5B is a cross-sectional view taken along the line AA in FIG.

  As shown in FIGS. 3 and 5, a slot-like insertion port 14 into which the insertion portion of the mating connector is inserted is formed on the distal end surface of the connector main body 11 and in the vicinity thereof. In addition, a plurality of elongated terminal accommodating holes 17 extending in the axial direction (lateral direction in FIGS. 4 and 5) and connected to the insertion port 14 are formed inside the connector main body 11, and the terminals One terminal is loaded inside each of the accommodation holes 17. In the present embodiment, the terminals are mainly the first terminal 21 connected to the differential signal pair line 34, the second terminal 22 connected mainly to the differential signal ground line 34a as the ground line, and A third terminal 23 described later connected to the power line 36 is included. In addition, a plurality of terminal tip openings 15 are arranged side by side on both outer sides of the upper and lower sides of the insertion port 14 at and near the tip surface of the connector main body 11. And the front-end | tip part of each terminal is accommodated in each inside of this opening 15 for terminal front-end | tips. Further, a contact portion that protrudes in a curved shape and comes into contact with the terminal of the mating connector is formed at the tip of the terminal. In addition, 21a is a contact part of the 1st terminal 21, 22a is a contact part of the 2nd terminal 22, and 23a mentioned later is a contact part of the 3rd terminal 23. FIG.

  In the present embodiment, the terminals are arranged along the upper surface and the lower surface of the insertion opening 14 so as to be evenly spaced in the width direction (lateral direction in FIG. 3), that is, at equal pitches. The upper surface and the lower surface of the insertion port 14 are parallel to each other. Then, for example, 10 terminals are arranged side by side at a pitch of 1 [mm] along the upper surface of the insertion port 14, and for example, 10 terminals are arranged at a pitch of 1 [mm] along the lower surface of the insertion port 14. ] Are arranged side by side. Therefore, the contact portion of the terminal disposed along the upper surface of the insertion port 14 is located in one plane, and the contact portion of the terminal disposed along the lower surface of the insertion port 14 is opposed to the one plane. Located in the plane.

  Each terminal has elasticity and functions as a spring, and is fixed in a state where both side surfaces of the main body are sandwiched between both side walls of the terminal accommodating hole 17, and the tip is a free end. And the contact part formed in the front-end | tip part of a terminal protrudes inward from the upper surface and lower surface of the insertion port 14, respectively, with the function as a spring. Therefore, when the cable connector 10 is fitted to the mating connector and the insertion portion of the mating connector is inserted into the insertion port 14, the contact portion of the terminal functions as a spring on the mating side of the mating connector insertion portion. It is pressed against the contact portion of the terminal and electrical connection can be ensured.

  Here, along the upper surface of the insertion port 14, a pair of first terminals 21 and a single second terminal 22 are arranged alternately. Specifically, from the left side in FIG. 3, the first terminal 21, the first terminal 21, the second terminal 22, the first terminal 21, the first terminal 21, the second terminal 22, the first terminal 21, the first terminal 21. The second terminal 22 and the first terminal 21 are arranged in this order. Further, the lower surface of the insertion port 14 is substantially the same as the upper surface, but includes a third terminal 23. Specifically, from the left side in FIG. 3, the second terminal 22, the first terminal 21, the first terminal 21, the second terminal 22, the first terminal 21, the first terminal 21, the second terminal 22, the first terminal 21. The third terminals 23 are arranged in this order.

  Thereby, as shown in FIG. 3, when the front end surface of the cable connector 10 is viewed, the terminal arrangement is such that the second terminal 22 is an apex sandwiched between two equal sides, and the two first terminals 21 are The isosceles triangles that are the two opposite vertices are alternately inverted and combined to form a horizontal arrangement. Therefore, each of the differential signal pair lines 34 in the differential signal line 32 is connected to each of the first terminals 21 in each triangle as shown in FIGS. 4 and 5A, and the same as the second terminal 22. When the differential signal ground line 34a in the differential signal line 32 is connected as shown in FIG. 5B, a terminal arrangement that can prevent the occurrence of crosstalk can be obtained.

  Next, the configuration of the guide portion 12 will be described in detail.

  FIG. 6 is a perspective view showing the connector main body portion and guide portion of the cable connector according to the embodiment of the present invention, and FIG. 7 is a four-view diagram showing the connector main body portion and guide portion of the cable connector according to the embodiment of the present invention. is there. 6A is an upper perspective view, FIG. 6B is an upper perspective view, FIG. 7A is a side view, FIG. 7B is a rear view, and FIG. 7C is a top view. 7 (d) is a bottom view.

  As shown in FIG. 6, the surface on which the guide groove 16 is formed in the guide portion 12 is divided into two upper and lower stages on the upper surface side and the lower surface side, and is arranged offset in the axial direction. . That is, two stepped surfaces are formed on the upper surface side and the lower surface side of the guide portion 12, and the guide groove 16 is formed on each of the surfaces. The guide groove 16 formed on the upper side surface of the guide portion 12 on the upper surface side and the lower surface side, that is, on the outer side of the cable connector 10 and the front side (upper right side in FIG. 6) side. The terminal portion 21b of the first terminal 21 is accommodated in a guide groove 16 formed on a lower surface, that is, a surface closer to the rear side (lower left in FIG. 6) on the axial center side of the cable connector 10. The terminal portion 22b of the second terminal 22 is accommodated. As shown in FIG. 6B, on the lower surface side of the guide portion 12, a guide groove 16 in which the terminal portion 23 b of the third terminal 23 is accommodated is located near the side edge of the upper surface. It is formed to protrude.

  The terminal in which the terminal portion is accommodated in the guide groove 16 on the upper surface side of the guide portion 12 is a terminal disposed along the upper surface of the insertion port 14, and the guide groove on the lower surface side of the guide portion 12. The terminal in which the terminal portion is accommodated in 16 is a terminal disposed along the lower surface of the insertion port 14. The front end of the guide groove 16 is formed in the guide portion 12 and is connected to a terminal rear receiving hole that communicates with the terminal receiving hole 17 of the connector main body 11. In this case, since the terminal rear receiving hole connected to the guide groove 16 formed on the lower side surface penetrates under the upper side surface, it is connected to the guide groove 16 formed on the upper side surface. It can be understood from the arrangement shown in FIGS. 6 and 7 that it is longer than the terminal rear receiving hole.

  In the present embodiment, the terminal ends of the terminals are arranged in two stages at non-uniform intervals, that is, at unequal pitches and at a wider pitch than the contact portions. As described above, the first terminal 21 and the second terminal 22 are mixed and arranged in the width direction on the same surface at the front end portion of the terminal, whereas the first terminal 21 and the second terminal 22 are arranged in the width direction on the same surface. The terminal portion 21b of the terminal 21 is accommodated in the guide groove 16 on the upper surface, and the terminal portion 22b of the second terminal 22 is accommodated in the guide groove 16 on the lower surface. For this reason, there is a margin in the dimension in the width direction at the terminal end of the terminal, and therefore the terminal end of the terminal is arranged at a wider pitch than the tip.

  Further, as shown in FIG. 7, the terminal portions 21b of the first terminals 21 are arranged at unequal pitches on the upper surface. For example, in the case of a terminal arranged along the upper surface of the insertion port 14, as described above, a pair of first terminals 21 and a single second terminal 22 are alternately arranged at the tip of the terminal. It is arranged. And the space | interval of the terminal parts 21b of the 1st terminal 21 in the same pair is narrower than the space | interval with the terminal part 21b of the 1st terminal 21 in an adjacent pair. But the space | interval of the terminal parts 21b of the 1st terminal 21 in the same pair is wider than the space | interval of the terminals in the front-end | tip part of a terminal, for example, becomes 1.2 to 1.3 times the space | interval in the front-end | tip part of a terminal. ing. The same applies to the terminals arranged along the lower surface of the insertion port 14.

  As described above, since the interval between the terminal portions 21b of the first terminal 21 is wide, even if the core wire 35 of the signal line such as the differential signal pair wire 34 is thick, the solder between the core wire 35 and the terminal portion 21b. Attaching work can be easily performed. In addition, the connection state between the core wire 35 and the terminal portion 21b by soldering can be made uniform. Furthermore, since the distance between the terminal portion 21b of the first terminal 21 in the adjacent pair is wide, the core wire 35 of the differential signal pair wire 34 is connected to the terminal portion 21b of the first terminal 21 in the same pair. The occurrence of crosstalk between adjacent differential signal pair lines 34 can be prevented.

  Further, the surface on which the guide groove 16 is formed has a two-step shape, and the terminal portion 21b of the first terminal 21 is accommodated in the guide groove 16 on the upper surface, so that the differential signal pair line It is possible to shorten the range in which the core wire 35 is exposed by removing the insulating coating of the signal wires 34 and the like. That is, the core wire 35 of the signal line such as the differential signal pair line 34 is covered with the insulating coating to the vicinity of the boundary between the upper surface and the lower surface where the terminal surface of the terminal portion 21b is located. Therefore, occurrence of crosstalk between signal lines can be prevented. Further, in the case of the differential signal pair line 34, the insulating coating of the signal line is covered with a bundling coating made of a shrinkable tube or the like. The bundling coating is a member for bundling so that two signal lines constituting the differential signal pair line 34 are in close contact with each other and are in a parallel state. For this reason, since it is covered with the bundling covering to the vicinity of the boundary between the upper surface and the lower surface, the two signal lines are not separated, and the signal line that transmits the positive signal in the differential signal The length and the length of the signal line for transmitting a negative signal are the same, and signal skew does not occur.

  Next, the configuration of the terminal will be described in detail.

  FIG. 8 is a perspective view showing a state in which the guide portion of the cable connector in the embodiment of the present invention is removed, FIG. 9 is a four-view diagram showing a state in which the guide portion of the cable connector in the embodiment of the present invention is removed, FIG. 10 is a perspective view showing the arrangement of terminals of the cable connector in the embodiment of the present invention, and FIG. 11 is a three-view diagram showing the arrangement of terminals of the cable connector in the embodiment of the present invention. 8A is an upper perspective view, FIG. 8B is a lower perspective view, FIG. 9A is a side view, FIG. 9B is a rear view, and FIG. 9C is a top view. 9 (d) is a bottom view, FIG. 10 (a) is a top perspective view, FIG. 10 (b) is a bottom perspective view, FIG. 11 (a) is a side view, FIG. 11 (b) is a top view, and FIG. ) Is a bottom view.

  As shown in FIGS. 10 and 11, the first terminal 21 and the second terminal 22 are aligned (aligned) at the tip end surfaces, and the connector main body portion 11 and the guide portion 12 so that they are at the same position in the axial direction. Is loaded. Therefore, the positions of the contact portion 21a of the first terminal 21 and the contact portion 22a of the second terminal 22 are also the same position in the axial direction. 10 and 11 show only the terminals by removing the connector main body 11 and the guide portion 12 so that the arrangement of the terminals loaded in the connector main body 11 and the guide portion 12 can be understood. 10 and 11, all the terminals shown in FIGS. 10 and 11 are arranged in the same manner as in the case where they are loaded in the connector body 11 and the guide 12 as shown in FIGS.

  The total length of the second terminal 22 is longer than the total length of the first terminal 21, and the position of the rear end surface of the second terminal 22 is behind the position of the rear end surface of the first terminal 21 (lower left in FIG. , Located on the right side in FIG. As described above, the guide groove 16 in which the terminal portion 21b of the first terminal 21 is accommodated is formed on the upper surface, and the guide groove 16 in which the terminal portion 22b of the second terminal 22 is accommodated is on the upper surface side. This is because the end portion 22b of the second terminal 22 needs to be positioned behind the end portion 21b of the first terminal 21. This is more easily understood by the arrangement of terminal terminations shown in FIGS. FIGS. 8 and 9 show the guide portion 12 removed so that the arrangement of the terminal end portions of the terminals loaded in the connector main body portion 11 and the guide portion 12 can be understood. The guide portion 12 can be detached from the connector main body portion 11 by releasing the engagement with the engagement piece 11a and pulling it backward.

  In addition, although the full length of the 3rd terminal 23 is substantially the same as the full length of the 1st terminal 21, the position of the rear-end surface of the 3rd terminal 23 is located back rather than the position of the rear-end surface of the 1st terminal 21. This is because the position of the contact portion 23 a of the third terminal 23 is set rearward with respect to the axial direction from the positions of the contact portion 21 a of the first terminal 21 and the contact portion 22 a of the second terminal 22. Thereby, as described above, the terminal portion 23b of the third terminal 23 is accommodated in the guide groove 16 protruding rearward on the upper surface of the guide portion 12.

  In the present embodiment, all the terminals have a long and narrow bar shape, and are formed by punching a metal plate and bending it. And the main-body part of a terminal is wider than a front-end | tip part and a termination | terminus part, and the convex part for biting into the side wall of the terminal accommodating hole 17 of the said connector main-body part 11 is formed in both sides | surfaces. As a result, both side surfaces of the main body are securely fixed while being sandwiched between both side walls of the terminal accommodating hole 17. And the contact part formed in the front-end | tip part of a terminal each protrudes inward by the function as a spring.

  Further, the terminal end portion is connected to the main body portion through the step portion, and is parallel to the main body portion and has a step difference in the vertical direction (the vertical direction in FIG. 11A). The terminal portion 21b of the first terminal 21 and the terminal portion 23b of the third terminal 23 are located outward from the main body portion, that is, closer to the outside of the guide portion 12, and the terminal portion 22b of the second terminal 22 is formed from the main body portion. It is located inward, that is, near the center of the guide portion 12. As a result, the terminal end 21b of the first terminal 21, the terminal end 23b of the third terminal 23, and the terminal end 22b of the second terminal 22 are divided into upper and lower stages, and the terminal end 21b and third terminal of the first terminal 21 are distributed. The terminal portion 23b of the second terminal 22 is positioned in the upper plane, and the terminal portion 22b of the second terminal 22 is positioned in the lower plane. The terminal portion 21b of the first terminal 21 and the terminal portion 23b of the third terminal 23 are accommodated in the guide groove 16 formed on the upper surface of the guide portion 12, and the terminal portion 22b of the second terminal 22 is the guide portion. 12 is accommodated in a guide groove 16 formed on the lower surface.

  Furthermore, as described above, in order to make the interval between the end portions 21b of the pair of first terminals 21 wider than the interval between the tip portions, the end portion 21b of the first terminal 21 is In parallel with the main body portion, it is stepped in the lateral direction (vertical direction in FIGS. 11B and 11C). The terminal portion 23b of the third terminal 23 is also parallel to the main body portion and stepped in the lateral direction. Therefore, the terminal portion 21b is paired with the first terminal 21 that is stepped in the right direction with respect to the main body portion and the first terminal 21 that the step portion 21b is stepped in the left direction with respect to the main body portion. Thereby, a pair of 1st terminal 21 from which the space | interval of terminal part 21b becomes wider than the space | interval of front-end | tip parts can be obtained.

  Here, the entire lengths of the first terminals 21 are all equal, and the two first terminals 21 combined as the pair are in a line-symmetric relationship with respect to the central axis of the pair, so that the two first terminals combined as the pair The line length for transmitting a signal from the terminal portion 21b to the contact portion 21a in the terminal 21 is the same. Therefore, when each of the differential signal pair lines 34 in the differential signal line 32 is connected to each of the two first terminals 21 combined as a pair, the line length and the minus for transmitting a positive signal in the differential signal Since the signal transmission line length is the same, no signal skew occurs.

  Next, a process of attaching the connector shield case 40 to the cable connector 10 and the cable 30 having the above-described configuration will be described.

  FIG. 12 is a diagram showing a process of attaching the connector to the connector shield case in the embodiment of the present invention, and FIG. 13 is a diagram showing a state in which the connector shield case is attached to the cable and the connector in the embodiment of the present invention. It is. 12 and 13, (a) is a front view, (b) is a side view, (c) is a top view, and (d) is a perspective view.

  Here, the connector shield case 40 is made of a single conductive metal plate, and is formed by punching and bending the metal plate. The connector shield case 40 includes a cylindrical portion 41 in which a predetermined range is accommodated from the front end of the connector main body 11 (the left end in FIGS. 12A and 12C), and the rear end of the connector main body 11 (see FIG. 12 (a) and 12 (c) have a surrounding portion 42 that surrounds the portion where the core wire of the cable 30 is connected to the connector terminal. The cylindrical part 41 and the surrounding part 42 constitute a case main body. The surrounding portion 42 has a substantially rectangular cross section and has an outer shape larger than that of the tubular portion 41. And the surrounding part 42 is equipped with the bending tongue piece 51 as an upper part by which one side was connected to the upper surface. The bent tongue piece 51 is connected to the upper surface at a connection line 51a, and a cable pressing piece 53 as a connecting piece to be described later is connected to the rear end of the bent tongue piece 51 via a connecting piece 52. Yes. The surrounding portion 42 includes a bottom plate 43 as a lower portion on the lower surface. The bottom plate 43 is connected to one side surface of the surrounding portion 42 at a connection line 43a, and a crimp piece 45 as a coupling piece is connected to the rear end of the bottom plate 43 via a connecting piece 44. ing. The crimp piece 45 surrounds the periphery of the shield tape 39 in the vicinity of the tip of the cable 30 and clamps the cable including the cable pressing piece 53 that is in contact with the shield tape 39. Thus, the connector shield case 40 is electrically connected to the shield tape 39. In addition, the swash plate 46 connected to both sides of the rear end of the bottom plate 43 is configured to block (obtain) an oblique rear side of a portion where the core wire of the cable 30 is connected to the connector terminal.

  Here, the shield tape 39 is sandwiched from above and below by the cable pressing piece 53 and the crimp piece 45 so that the connector shield case 40 and the braided shield of the cable 30 are electrically connected. However, without using the shield tape 39, the braided shield is sandwiched from above and below by the cable pressing piece 53 and the crimp piece 45, so that the connector shield case 40 and the braided shield are brought into contact with each other. It can also be electrically connected.

  Then, as shown in FIG. 12, the cable 30 and the connector main body 11 are in a posture that is substantially straight, that is, the axis of the cable 30 and the axis of the connector main body 11 form substantially the same straight line. As a posture, the connector main body 11 is inserted into the connector shield case 40 from behind the connector shield case 40. In this case, the connector main body 11 is inserted from the rear of the enveloping part 42 so that the axis of the connector main body 11 and the axis of the cylindrical part 41 and the enclosing part 42 form the same straight line. Note that the movement of the connector shield case 40, the cable 30, and the connector body 11 when the connector body 11 is inserted is relative, and the cable 30 and the connector body are fixed by fixing the connector shield case 40. 11 may be advanced, the cable 30 and the connector main body 11 may be fixed, and the connector shield case 40 may be retracted. The connector shield case 40 may be retracted and the cable 30 and the connector main body 11 may be retracted. You may move forward.

  Further, as described above, the bent tongue piece 51 is inclined obliquely upward with respect to the upper surface of the surrounding portion 42, and the bottom plate 43 extends downward from one side surface of the surrounding portion 42. Therefore, the rear end of the surrounding portion 42 is open. Therefore, the connector main body 11 can be easily inserted from the rear of the surrounding part 42.

  Subsequently, in a state in which the connector main body 11 is mounted on the connector shield case 40, the portion where the core wire of the cable 30 is connected to the connector terminal, that is, the connection portion between the connector main body 11 and the cable 30 is bent, and the cable 30 is moved obliquely upward to be inclined with respect to the connector body 11. The movement of the cable 30 and the connector main body 11 is relative, and the connector main body 11 may be moved with respect to the cable 30. Then, the angle of the cable 30 with respect to the connector main body 11 is set to be approximately the same as the angle of the bent tongue piece 51 with respect to the upper surface of the surrounding portion 42.

  Subsequently, the bottom plate 43 is bent with respect to one side surface of the surrounding portion 42 at the connection line 43a, and the bottom plate 43 is moved upward so as to be flush with the lower surface of the surrounding portion 42. The connection line 43 a becomes a lower end edge of one side surface of the surrounding portion 42 and extends in a direction parallel to the axis of the surrounding portion 42. Further, the rear half of the lower surface of the surrounding portion 42 is closed by the bottom plate 43, and the free end edge (the lower end edge in the state shown in FIG. 12) of the bottom portion plate 43 is the lower end edge of the other side surface of the surrounding portion 42. Abut.

  Subsequently, the connecting portion between the connector main body 11 and the cable 30 is bent back in the original direction, and the cable 30 is moved obliquely downward to return to the original state. That is, the posture is such that the axis of the cable 30 and the axis of the connector main body 11 form substantially the same straight line. At this time, the bent tongue piece 51 is bent with respect to the upper surface of the surrounding portion 42 at the connection line 51a, and the bent tongue piece 51 is moved downward so as to be flush with the upper surface of the surrounding portion 42. As a result, the lower surface of the shield tape 39 of the cable 30 contacts the U-shaped bottom portion of the crimp piece 45, and the cable pressing piece 53 contacts the upper surface of the shield tape 39. That is, the shield tape 39 of the cable 30 is sandwiched from above and below by the cable pressing piece 53 and the crimp piece 45.

  Subsequently, the U-shaped straight portion of the crimp piece 45 is bent so as to have a shape along the peripheral surface of the shield tape 39 of the cable 30 so that the crimp piece 45 is wound around the peripheral surface of the shield tape 39. The cable 30 is clamped by the crimp piece 45. In this case, the cable pressing piece 53 in contact with the upper surface of the shield tape 39 is wrapped by the U-shaped tip portion of the crimp piece 45.

  Thus, as shown in FIG. 13, the crimp piece 45 and the cable pressing piece 53 are attached so as to cover the vicinity of the vicinity of the tip of the cable 30, and the cable 30 and the connector main body 11 of the connector shield case 40 are attached. Thus, the connector assembly 60 can be obtained. In this case, the connector shield case 40 surrounds the periphery of the connector main body 11 connected to the tip of the cable 30 and electromagnetically shields the connector main body 11.

  After this, a molding process (not shown) is performed, and the connector shield case 40, the periphery of the tip of the cable 30 and the like are molded with an insulating resin to complete the connector assembly 60. In this case, it is desirable that at least the range from the front end of the surrounding portion 42 to the rear end of the crimp piece 45 is molded with an insulating resin. In addition, since most of the cylindrical part 41 is inserted in the other party connector which is not shown in figure, it is normally made not to mold with insulating resin. Moreover, the connector 60 as a connector assembly can also be completed by mounting | wearing with the connector cover which consists of insulating resin instead of a mold.

  As described above, in the present embodiment, the terminal portion 21b of the first terminal 21 and the terminal portion 22b of the second terminal 22 are divided into two upper and lower stages, and the terminal portion 21b of the first terminal 21 is in a plane on the upper side. The terminal portion 22b of the second terminal 22 is located in the lower plane. And the space | interval of the terminal parts 21b of the said 1st terminal 21 is wide. Therefore, even if the core wire 35 of the signal line such as the differential signal pair wire 34 is thick, the soldering work between the core wire 35 and the terminal end portion 21b can be easily performed. Furthermore, the soldering operation can be performed accurately, and the connection state between the core wire 35 and the terminal portion 21b by soldering can be made uniform.

  Moreover, since the space | interval with the termination | terminus part 21b of the 1st terminal 21 in an adjacent pair is wide, the core wire of the differential signal pair line 34 is connected to the termination | terminus part 21b of the two 1st terminal 21 combined as a pair. In this case, the occurrence of crosstalk between adjacent differential signal pair lines 34 can be prevented. Furthermore, since the line length for transmitting a signal from the terminal portion 21b to the contact portion 21a in the two first terminals 21 combined as the pair is the same, the line length for transmitting a positive signal in the differential signal and the negative signal are The transmission line length is the same, and signal skew does not occur.

  Further, the upper plane and the lower plane are stepped, and the upper plane is located in front of the lower plane, so that the core of the signal line such as the differential signal pair line 34 is provided. 35 can be in a state of being covered with an insulating coating up to the vicinity of the boundary between the upper surface and the lower surface where the terminal surface of the terminal portion 21b is located. Therefore, it is possible to shorten the range in which the core wire 35 is exposed by removing the insulating coating of the signal line, and to prevent the occurrence of crosstalk between the signal lines. Further, in the case of the differential signal pair line 34, the upper surface of the insulating coating of the two signal lines is covered with a bundling coating up to the vicinity of the boundary between the upper surface and the lower surface. Therefore, the two signal lines are not separated from each other, and the signal line length for transmitting the positive signal in the differential signal is the same as the signal line length for transmitting the negative signal, resulting in signal skew. There is nothing to do.

  In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.

It is an upper perspective view which shows the connector for cables in embodiment of this invention. It is a downward perspective view which shows the connector for cables in embodiment of this invention. It is a front view which shows the front end surface of the connector for cables in embodiment of this invention. It is a top view of the connector for cables in an embodiment of the invention. It is a sectional side view of the connector for cables in an embodiment of the invention. It is a perspective view which shows the connector main-body part and guide part of the connector for cables in embodiment of this invention. It is a four-plane figure which shows the connector main-body part and guide part of the connector for cables in embodiment of this invention. It is a perspective view which shows the state which removed the guide part of the connector for cables in embodiment of this invention. It is a four-plane figure which shows the state which removed the guide part of the connector for cables in embodiment of this invention. It is a perspective view which shows arrangement | positioning of the terminal of the connector for cables in embodiment of this invention. It is a three-plane figure which shows arrangement | positioning of the terminal of the connector for cables in embodiment of this invention. It is a figure which shows the process of mounting | wearing a connector with the shield case for connectors in embodiment of this invention. It is a figure which shows the state in which the shield case for connectors was attached to the cable and connector in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cable connector 21 1st terminal 21a, 22a Contact part 21b, 22b Termination part 22 2nd terminal 30 Cable 34 Differential signal pair line 34a Differential signal ground line 35 Core line 40 Connector shield case 60 Connector assembly

Claims (7)

(A) a connector cable which is connected to the distal end of the cable,
(B) contacting portion for contacting a terminal of the counterpart connector, and a first pin及 beauty second pin having each an end portion connected to the core wire of the cable, and,
(C) made of insulating resin, having said connector body portion及 beauty guide portion first pin及 beauty second pin is inserted,
(D) A core wire of a signal line is connected to a terminal portion of the first terminal, a core wire of a ground wire is connected to a terminal portion of the second terminal,
(E) the same end portion of the first pin及 beauty second pin of the contact portion is located in the plane are distributed in two stages, the end of the second pin and the terminal end portion of the first pin each located in the plane of the separate stages and,
(F) at least cable connector in which the distance between the end portion the mechanic first pin is equal to or wider than the distance between the contact part the workers. The interval between the two end portions same mechanic first pin which are combined as a pair, cable connector according to a narrow claim 1 than the distance between the end portion of the first pin in the adjacent pair. Plane located in the end portion of the second pin, the center side of the cable connector from the position plane of the end portion of the first pin, and, according to claim 1 or 2 positioned on the rear end side connector for the cable. Core line connected to the terminal end portion of the first pin, to the extent of the plane to the position of the end portion of the second pin, any one of claims 1 to 3 are covered with an insulating coating cable connector as claimed in. Said two first pin of which are combined in pairs of linear length is the same, according to claim 2 wherein the each of the end portions of the two first pin which is the core wire of the differential signal pair lines are respectively connected cable connector as claimed in. Two signal lines of the differential signal wire pairs, to the extent of the plane to the position of the end portion of the second pin, covered by bundling coating on the insulating coating to tie the two signal lines cable connector according to it has claim 5 which We. (A) and cable,
(B) contacting portion for contacting a terminal of the counterpart connector, and a first pin及 beauty second pin having each an end portion connected to the core wire of the cable, as well as made of an insulating resin, said first comprising one pin及 beauty connector body及 beauty guide portion in which the second pin is inserted, said at the end of the first terminal wire of the signal line is connected, grounding the end portions of the second terminal is connected to the core wire of the line, the end portion of the first pin及 beauty second pin of the contact portion is positioned in the same plane are distributed in two stages, the second end and the terminal end of the first pin each terminating section of the child positioned in the plane of the separate stages, wider than the gap spacing of the end portion the mechanics of at least the first pin is the contact portion the workers, is connected to the distal end of the cable and connectors for cable,
(C) a connector assembly and having a shield cases connector mounted around the connector for the cable.

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