JP6764290B2 - connector - Google Patents

Description

The present invention relates to a connector that electrically connects to a circuit, a device, or the like.

For example, an industrial robot is provided with a motor for moving a movable part and a detection device for detecting the amount of rotation of the movable part. A power cable for supplying a power voltage for driving or braking the motor is connected to the motor via a power connector. On the other hand, a signal cable for extracting a detection signal from the detection device is connected to the detection device via a signal connector. Although the power supply connector and the signal connector are independent of each other, they are often arranged close to each other.

Further, the connector includes an L-shaped connector in which the cable attachment direction (drawing direction) and the attachment / detachment direction to / from the mating connector are orthogonal to each other (see, for example, Patent Document 1 below). By using the L-shaped connector, it is possible to save space for cable routing and connector arrangement. For example, in an industrial robot, an L-shaped connector is often used as a power supply connector and a signal connector in order to save space around moving parts.

Japanese Unexamined Patent Publication No. 07-240249

By the way, by supplying the power supply voltage to the motor and taking out the detection signal from the detection device via one connector, for example, it is possible to further promote space saving around a movable part in an industrial robot. As such a configuration, a composite cable in which a power cable and a signal cable are bundled in one is prepared, and this composite cable is connected to a motor and a detection device via one L-shaped connector. Be done. In addition, as another configuration, one L-shaped connector provided with two ports for attaching cables is prepared, and a motor and a signal cable that are independent of each other are connected to the motor via the one L-shaped connector. A configuration that connects to a detection device is conceivable.

In such a configuration, in one connector case, the cable that supplies the power supply voltage and the terminal to which the cable is connected are extremely close to each other, and the cable through which the detection signal flows and the terminal to which the cable is connected are extremely close to each other. Will be placed in. Therefore, mainly, in order to suppress noise on the detection signal, a shield structure is provided in the connector case for electromagnetically shielding the cable and terminal through which the detection signal flows from the cable or terminal for supplying the power supply voltage. Is required.

However, unlike the linear connector, the L-shaped connector has a complicated structure because the cable attachment direction and the attachment / detachment direction with the mating connector (the mating direction between the terminals) are orthogonal to each other. Therefore, when the shield structure is provided in the connector case, the L-shaped connector becomes large. If the L-shaped connector becomes large, it becomes difficult to promote space saving around moving parts in, for example, an industrial robot.

The present invention has been made in view of the above-mentioned problems, for example, and the subject of the present invention is one of two or more cables and two or more terminals arranged in a connector case, and one of the cables. It is an object of the present invention to provide a small L-shaped connector having a shield structure that electromagnetically shields a terminal from the other cable or the other terminal.

In order to solve the above problems, one aspect of the connector of the present invention includes a first terminal group including a plurality of terminals connected to a plurality of first cables whose outer peripheral side is surrounded by an outer conductor, and a plurality of first terminals. A second terminal group including a plurality of terminals connected to the two cables, a tubular first accommodating portion whose axial direction is the X direction, and a tubular shape whose axial direction is the Z direction orthogonal to the X direction. It is formed in an L shape having a second accommodating portion, and a plurality of first cables and a plurality of second cables are inserted into the first accommodating portion, and a first terminal is formed in the second accommodating portion. It includes a connector case in which a group and a second terminal group are arranged, and a shield member arranged in the connector case, formed of a conductive material, and electrically connected to an outer conductor, and the shield member is in the X direction. It is formed in an L shape having a plate-shaped first partition extending in the Z direction and a plate-shaped second partition extending in the Z direction, and the first partition is an outer conductor in a plurality of first cables. The second partition is separated from the first terminal group and the second terminal group by separating the portion from which the is removed and the plurality of second cables.

According to this aspect of the present invention, the shield member creates an L-shaped space in the connector case, a space in which the first cable and the first terminal from which the outer conductor is removed are arranged, and a second cable. And the space where the second terminal is arranged can be divided. This makes it possible to realize a small L-shaped connector having a shield structure that electromagnetically shields the first cable and the first terminal from which the outer conductor has been removed from the second cable or the second terminal. it can.

Further, in one aspect of the connector of the present invention described above, when the X direction and the direction orthogonal to the Z direction are the Y direction, the first partition wall portion is formed in a plate shape extending in the X direction and the Y direction, and is inside the connector case. The space is divided into a space on one side in the Z direction and a space on the other side in the Z direction, and the second partition wall portion is formed in a plate shape extending in the Z direction and the Y direction, and the space inside the connector case is divided into the space on one side in the X direction. It is preferable that the space is divided into the space of the above and the space on the other side in the X direction. In this case, the shield member is formed in a plate shape extending in the X direction and the Z direction in addition to the first partition wall portion and the second partition wall portion, and is formed between the first terminal group and the wall portion of the connector case. It is preferable to provide a third partition wall that separates them.

Further, in one aspect of the connector of the present invention described above, when the X direction and the direction orthogonal to the Z direction are the Y direction, the first partition wall portion is formed in a plate shape extending in the X direction and the Z direction, and the first one. The space inside the accommodating portion is divided into a space on one side in the Y direction and a space on the other side in the Y direction, and the second partition wall portion is formed in a plate shape extending in the X and Z directions to divide the space in the second accommodating portion. The space may be divided into a space on one side in the Y direction and a space on the other side in the Y direction.

Further, in one aspect of the connector of the present invention described above, a connecting member for connecting the shield member and the outer conductor is provided, the connecting member is formed in a ring shape whose axial direction is the X direction, and the connecting member is connected to the connecting member. A configuration in which a plurality of first cables and a plurality of second cables are inserted from one side in the axial direction of the member, and an end portion of the first partition wall portion is inserted from the other side in the axial direction of the connecting member. Is preferable.

Further, in one aspect of the connector of the present invention described above, the connector case is formed of a conductive material, the shield member protrudes from a part of the shield member, and the protruding end portion comes into contact with the connector case, whereby the shield member and the connector case. It is preferable to provide a connector case contact portion that electrically connects to and from.

Further, in one aspect of the connector of the present invention described above, it is preferable that a mating shield member contacting portion that comes into contact with the shield member of the mating connector is formed at the other end of the second partition wall portion in the Z direction.

Further, in one aspect of the connector of the present invention described above, between the first terminal housing that supports each terminal of the first terminal group and the second terminal housing that supports each terminal of the second terminal group. A first terminal housing, a second terminal housing, and a connecting member for connecting the shield member are provided with the second partition wall arranged, and the connecting member is supported in the second accommodating portion. It is preferable that the terminal housing, the second terminal housing, and the shield member of the above are fixed in the second accommodating portion.

According to the present invention, of two or more cables and two or more terminals arranged in a connector case, one cable and one terminal are electromagnetically shielded from the other cable or the other terminal. It is possible to realize a small L-shaped connector having a structure.

It is an external perspective view which shows the connector of 1st Embodiment of this invention together with the mating connector. It is explanatory drawing which shows the cross section of the composite cable to which the connector of 1st Embodiment of this invention is attached. It is sectional drawing which shows the mating connector seen from the direction of arrow III-III in FIG. It is an external view which shows the shield plate of the mating connector. It is sectional drawing which shows the connector of the 1st Embodiment of this invention seen from the arrow VV direction in FIG. It is an exploded view of the connector of the 1st Embodiment of this invention. It is explanatory drawing which shows the signal terminal housing, the power supply terminal housing, the shield member and the coupling member in the connector of 1st Embodiment of this invention. It is explanatory drawing which shows the locking of a coupling member and a connector case in the connector of 1st Embodiment of this invention. It is explanatory drawing which shows the shield member, the connection ring and the shield plate in the connector of the 1st Embodiment of this invention. It is explanatory drawing which shows the contact between the shield member and the connector case in the connector of 1st Embodiment of this invention. It is explanatory drawing which shows the connection of the seal member and the connection ring in the connector of the 1st Embodiment of this invention. It is explanatory drawing which shows the structure which presses the outer conductor of a composite cable, etc. against a connection ring by a clamp ring in the connector of the 1st Embodiment of this invention, and makes contact. It is explanatory drawing which shows the connector of the 1st Embodiment of this invention seen from the bottom. It is explanatory drawing which shows two drawing directions of the composite cable in the connector of the 1st Embodiment of this invention. It is an external view which shows the connector of the 2nd Embodiment of this invention. It is an exploded view which shows the connector of the 2nd Embodiment of this invention. It is explanatory drawing which shows the connector of the 3rd Embodiment of this invention. It is explanatory drawing which shows the shield member in the connector of the 3rd Embodiment of this invention.

(First Embodiment)
FIG. 1 shows the connector 1 of the first embodiment of the present invention together with the composite cable 81 and the mating connector 91. Hereinafter, when the shape, position, orientation, etc. of each part of the connector 1 and the like are explained using directions such as front, back, left, right, up, and down, they are drawn in the lower right of FIG. 1 and the like for convenience of explanation. The X1 direction indicated by the arrow indicates the front direction, the X2 direction is the rear direction, the Y1 direction is the left direction, the Y2 direction is the right direction, the Z1 direction is the upward direction, and the Z2 direction is the downward direction.

In FIG. 1, the connector 1 is a connector that can be used to connect two types of electric paths. Hereinafter, for convenience of explanation, the detection signal output from the detection device that detects the connection of the electric path that supplies the power supply voltage for driving the motor that moves the moving part of the industrial robot to the motor, the rotation amount of the moving part, and the like. The case where the connector 1 is used for the connection of the electric path for taking out the electric path will be described as an example. A composite cable 81 is attached to the connector 1. Further, the connector 1 is detachably connected to the mating connector 91.

FIG. 2 shows a cross section of the composite cable 81. As shown in FIG. 2, the composite cable 81 includes a plurality of signal internal cables 82 through which a detection signal output from the detection device flows, and a plurality of power supply internal cables 83 for supplying a power supply voltage to the motor. The plurality of power supply internal cables 83 include two internal cables for supplying a driving voltage for driving the motor and two internal cables for supplying a braking voltage for braking the motor. .. The signal internal cable 82 and the power supply internal cable 83 each include an internal conductor 84 and an insulator 85 that covers the outer peripheral side of the internal conductor 84. Further, the outer peripheral side of the plurality of signal internal cables 82 is collectively covered with the signal outer conductor 86, and the outer peripheral side of the signal outer conductor 86 is covered with the signal insulating film 87. Further, the outer peripheral side of the plurality of signal internal cables 82 covered with the signal outer conductor 86 and the signal insulating coating 87 and the outer peripheral side of the plurality of power supply internal cables 83 are covered with the entire outer conductor 88. The outer peripheral side of the entire outer conductor 88 is covered with the entire insulating coating 89. The signal internal cable 82 and the signal external conductor 86 are specific examples of the first cable, and the power supply internal cable is a specific example of the second cable.

FIG. 3 shows a cross section of the mating connector 91 as viewed from the directions of arrows III-III in FIG. 1, and FIG. 4 shows a shield plate 98 provided on the mating connector 91. As shown in FIG. 3, the mating connector 91 includes a connector case 92 made of a non-conductive material, a plurality of signal terminals 93, a signal terminal housing 94 made of a non-conductive material, and a plurality of power supplies. Between the terminal 95, the power supply terminal housing 96 formed of a non-conductive material, the shield case 97 formed of a conductive material, the shield plate 98 formed of a conductive material, and the connector 1 and the mating connector 91. It is provided with a sealing member 99 for waterproofing. The plurality of signal terminals 93 are supported by the signal terminal housing 94. Further, the plurality of power supply terminals 95 are supported by the power supply terminal housing 96. Further, a shield plate 98 is supported between the signal terminal housing 94 and the power supply terminal housing 96. Further, a shield case 97 is provided in the connector case 92. Further, the signal terminal housing 94, the power supply terminal housing 96, and the shield plate 98 are arranged and locked in the shield case 97. Although not shown, each signal terminal 93 is connected to a detection device, each power supply terminal 95 is connected to a motor, and the shield case 97 and the shield plate 98 are grounded. In the connector case 92, the plurality of signal terminals 93 are electromagnetically shielded from the outside of the mating connector 91 by the shield case 97. Further, in the connector case 92, the plurality of signal terminals 93 are electromagnetically shielded from each power supply terminal 95 by a shield plate 98. Further, as shown in FIG. 4, the shield plate 98 is formed with a plurality of contact convex pieces 100 that come into contact with the second partition wall portion 42 of the shield member 40 of the connector 1. Further, as shown in FIG. 1, the connector case 92 of the mating connector 91 is formed with a lock engaging claw 101 that engages with the lock engaging portion 24 formed on the lock lever 23 of the connector 1.

5 to 14 are views regarding the connector 1. Of these figures, FIG. 5 shows a cross section of the connector 1 as viewed from the direction of arrow VV in FIG. 1, and FIG. 6 shows a state in which the connector 1 is disassembled. In FIG. 5, only one internal cable for signal 82 and one internal cable for power supply 83 are shown for easy viewing.

As shown in FIGS. 5 and 6, the connector 1 includes a connector case 10 having a first accommodating portion 11 and a second accommodating portion 12, a lock lever 23 for holding the connector 1 to the mating connector 91, and the like. A plurality of signal terminals 28, a signal terminal housing 29 that supports a plurality of signal terminals 28, a plurality of power supply terminals 32, a power supply terminal housing 33 that supports a plurality of power supply terminals 32, and each signal. The internal cable 82 and the terminal 28 for each signal are provided with a shield member 40 that electromagnetically shields the internal cable 83 for each power source or the terminal 32 for each power source. Further, the connector 1 includes a connecting member 36 that connects the signal terminal housing 29, the power supply terminal housing 33, and the shield member 40, and supports them in the second accommodating portion 12. Further, the connector 1 includes a connection ring 51 as a connecting member for electrically connecting the shield member 40, the entire outer conductor 88 of the composite cable 81, and the signal outer conductor 86, a rubber packing 64 for waterproofing, and the entire outside. A clamp ring 59 that brings the conductor 88 and the signal outer conductor 86 into contact with the shield member 40, and a conductive ring 60 that cooperates with the clamp ring 59 to bring the entire outer conductor 88 and the signal outer conductor 86 into contact with the shield member 40. It includes a sealing ring 61 for waterproofing, a cable clamp 62 for tightening the composite cable 81, and a cap 63 for fixing the composite cable 81 and the like to the connector case 10.

(Connector case)
As shown in FIG. 1, the connector case 10 is formed by connecting the first accommodating portion 11 at the rear portion and the second accommodating portion 12 at the front portion with a screw 13. As shown in FIG. 5, the first accommodating portion 11 is formed of a non-conductive material such as a resin into a tubular shape whose axial direction is the front-rear direction (X direction). On the other hand, the second accommodating portion 12 is formed of a conductive material such as zinc in a tubular shape whose axial direction is the vertical direction (Z direction). The front end portion of the first accommodating portion 11 and the upper end portion of the second accommodating portion 12 are connected to each other so that their internal spaces are continuous, whereby the connector case 10 is L-shaped as a whole. It is formed in a shape (or the space inside the connector case 10 is formed in an L shape as a whole).

Further, the first accommodating portion 11 is opened rearward, and a cable insertion portion 14 into which the composite cable 81 is inserted is formed at the rear portion of the first accommodating portion 11. Further, a cap mounting portion 15 to which the cap 63 is screwed is formed on the rear outer peripheral portion of the first accommodating portion 11. Further, at the front end portion of the first accommodating portion 11, a mating portion 16 to be mated with the mating portion 17 formed at the rear end portion of the second accommodating portion 12 is formed. Further, a rubber packing 64 is provided between the mating portion 16 of the first accommodating portion 11 and the mating portion 17 of the second accommodating portion 12 to prevent the gap between the two. Further, a step portion 18 for attaching the connection ring 51 is formed on the inner peripheral side of the front end portion of the first accommodating portion 11.

Further, in the second accommodating portion 12, a signal terminal housing 29 in which a plurality of signal terminals 28 are supported so as to form a group in the left-right direction, and a plurality of power supply terminals 32 are different from the above rows. A power supply terminal housing 33 supported as a group in a row and a terminal arrangement portion 19 on which a shield member 40 and the like are arranged are formed. Further, the second accommodating portion 12 is opened downward, and a fitting portion 20 for fitting with the mating connector 91 is formed in the lower portion of the second accommodating portion 12. Further, on the inner surface of the left wall and the inner surface of the right wall of the second accommodating portion 12, a coupling member locking portion 21 (see FIG. 8) for locking the coupling member 36 and a connector case contact portion 44 of the shield member 40 are provided. A shield member contact portion 22 (see FIG. 10) is formed to bring the two into contact with each other. Further, the second accommodating portion 12 formed of the conductive material electromagnetically shields each signal internal cable 82 and each signal terminal 28 and the like arranged in the second accommodating portion 12 with respect to the outside of the connector 1. Has the function of

Further, as shown in FIG. 1, the lock lever 23 that prevents the connector 1 from coming off from the mating connector 91 is rotatably supported on the outer surface side of the second accommodating portion 12 of the connector case 10 in a substantially vertical direction. .. Further, the lock lever 23 is provided with a lock engaging portion 24 that engages with the lock engaging claw 101 formed in the connector case 92 of the mating connector 91. By fitting the connector 1 to the mating connector 91 and pushing down the lock lever 23, the lock engaging portion 24 engages with the lock engaging claw 101 to enter the locked state. Further, the lock lever 23 is provided with a hook portion 25, and when the lock lever 23 is pushed down, the hook portion 25 is formed on the front surface of the second accommodating portion 12 of the connector case 10 (see FIG. 6). ), The lock lever 23 is fixed, and the locked state is maintained.

(Signal terminal)
The plurality of signal terminals 28 are terminals for taking out the detection signal output from the detection device. As shown in FIG. 5, each signal terminal 28 is formed of a conductive material, and the connection end 28A to which the internal signal cable 82 is connected and the contact end 28B that contacts the signal terminal 93 of the mating connector 91. And have.

As shown in FIG. 5, the signal terminal housing 29 that supports the plurality of signal terminals 28 is formed of a non-conductive material, and a plurality of terminal support holes that internally accommodate and support the plurality of signal terminals 28, respectively. 30 is formed. Further, as shown in FIG. 6, on the left and right portions of the signal terminal housing 29, a pair of mounting locking portions 31 for locking the signal terminal housing 29 to the coupling member 36 (only one is shown). ) Is provided.

(Power supply terminal)
The plurality of power supply terminals 32 are terminals for supplying a power supply voltage to the motor. As shown in FIG. 5, each power supply terminal 32 is formed of a conductive material, and the connection end portion 32A to which the power supply internal cable 83 is connected and the contact end portion 32B in contact with the power supply terminal 95 of the mating connector 91. And have. Each power supply terminal 32 has a larger diameter than the signal terminal 28.

As shown in FIG. 5, the power supply terminal housing 33 that supports the plurality of power supply terminals 32 is formed of a non-conductive material, and a plurality of terminal support holes that internally accommodate and support the plurality of power supply terminals 32, respectively. 34 is formed. Further, as shown in FIG. 6, on the left and right portions of the power supply terminal housing 33, a pair of mounting locking portions 35 for locking the power supply terminal housing 33 to the coupling member 36 (only one is shown). ) Is provided.

(Coupling member)
FIG. 7 shows the signal terminal housing 29, the power supply terminal housing 33, and the shield member 40 coupled by the coupling member 36. FIG. 8 shows a state in which the signal terminal housing 29, the power supply terminal housing 33, and the shield member 40 coupled by the coupling member 36 are fixed to the connector case 10. Note that FIG. 7 is a view viewed from the left, and FIG. 8 is a view viewed from the front. As shown in FIG. 7, the coupling member 36 is formed in a substantially annular shape by a non-conductive material such as resin, and surrounds the signal terminal housing 29, the power supply terminal housing 33, and the shield member 40 together. In the coupling member 36, the signal terminal housing 29 is arranged at the rear portion, the power supply terminal housing 33 is arranged at the front portion, and the shield member 40 is arranged between the signal terminal housing 29 and the power supply terminal housing 33. The second partition wall portion 42 of the above is arranged. In the signal terminal housing 29, the power supply terminal housing 33, and the shield member 40, the mounting locking portions 31, 35, 47 are formed on the inner surfaces of the left and right portions of the coupling member 36, respectively. It is fixed to the coupling member 36 by being locked to (not shown). As a result, the signal terminal housing 29, the power supply terminal housing 33, and the shield member 40 are integrated via the coupling member 36. When attaching the connector 1 to the composite cable 81, after assembling the signal terminal housing 29, the power supply terminal housing 33, and the shield member 40 to the coupling member 36, respectively, the second accommodating portion 12 (terminal arrangement) of the connector case 10 Put it in the part 19).

Further, as shown in FIG. 8, a pair of fixed locking portions 37 for locking the coupling member 36 to the second accommodating portion 12 of the connector case 10 are provided on the left portion and the right portion of the coupling member 36. ing. Each fixed locking portion 37 of the coupling member 36 is locked with the coupling member locking portion 21 formed in the second accommodating portion 12, so that the signal terminal housing 29, the power supply terminal housing 33, and the shield member are locked. The 40 is fixed in the terminal arrangement portion 19 of the second housing portion 12 via the coupling member 36. By integrating the signal terminal housing 29, the power supply terminal housing 33 and the shield member 40 with the coupling member 36 and then putting them into the connector case 10, the signal terminal housing 29, the power supply terminal housing 33 and the shield member 40 The work of assembling the connector case 10 to the connector case 10 can be greatly simplified.

When the signal terminal housing 29, the power supply terminal housing 33, and the shield member 40 are put into the second housing portion 12 of the connector case 10, the signal terminal housing 29 is the second housing portion as shown in FIG. The power supply terminal housing 33 is located at the rear portion of the inside of the second housing portion 12. In this case, each signal internal cable 82 exposed from the entire external conductor 88 and the signal external conductor 86 of the composite cable 81 inserted into the cable insertion portion 14 and connected to each signal terminal 28 is a second accommodating portion. It is located at the bottom and rear of the space within 12. Further, each power supply internal cable 83 exposed from the entire outer conductor 88 and connected to each power supply terminal 32 is arranged in a portion from the upper part to the front part of the space in the second accommodating portion 12.

(Shield member)
FIG. 9 shows a shield plate 98 provided on the shield member 40, the connection ring 51, and the mating connector 91. FIG. 10 shows a state in which the connector case contact portion 44 of the shield member 40 is in contact with the connector case 10. FIG. 11 shows a state in which the connection ring 51 is connected to the shield member 40. As shown in FIG. 9, the shield member 40 includes a first partition wall portion 41 and a second partition wall portion 42. The first partition wall portion 41 is formed in a plate shape extending in the front-rear direction. The second partition wall portion 42 is formed in a plate shape extending in the vertical direction. The shield member 40 is formed in an L shape in which the front end portion of the first partition wall portion 41 and the upper end portion of the second partition wall portion 42 are continuous.

Specifically, in the present embodiment, the first partition wall portion 41 is formed in a plate shape that expands in the front-rear direction and the left-right direction, and as shown in FIG. 5, the first partition wall portion 41 is inside the second accommodating portion 12 of the connector case 10. The space is divided into a lower space and an upper space. As a result, the first partition 41 is the signal internal cable 82 exposed from the overall outer conductor 88 and the signal outer conductor 86 of the composite cable 81 in the connector case 10, and each power source exposed from the overall outer conductor 88. It is separated from the internal cable 83. Further, the second partition wall portion 42 is formed in a plate shape extending in the vertical direction and the horizontal direction, and the space in the second accommodating portion 12 of the connector case 10 is divided into a rear space and a front space. There is. As a result, the second partition wall portion 42 separates each signal terminal 28 and each power supply terminal 32 in the connector case 10. Generally speaking, the shield member 40 divides the space in the second accommodating portion 12 of the connector case 10 into a space at the lower and rear portions and a space from the upper portion to the front portion, and the internal cables 82 for each signal and the space inside the front portion. Each signal terminal 28 is separated from each power supply internal cable 83 and each power supply terminal 32.

Further, the shield member 40 has a rear end portion located at an intermediate portion in the vertical direction in the front portion of the first accommodating portion 11 of the connector case 10, and is bent after being extended while being inclined upward from the rear end portion toward the front. Subsequently, it extends forward in parallel with the axis of the first accommodating portion 11 and then bends, and then extends downward in parallel with the axis of the second accommodating portion 12. By forming the shield member 40 into a shape having such a plurality of bent portions, the volume of the portion accommodating the internal cable 82 for each signal and the terminal 28 for each signal, the internal cable 83 for each power supply, and each power supply The space inside the connector case 10 can be divided so that both the volume of the portion accommodating the terminal 32 can be secured.

Further, as shown in FIG. 9, a third partition wall portion 43 (only one of which is shown) is formed at the left end portion and the right end portion of the second partition wall portion 42 of the shield member 40, respectively. Each third partition wall portion 43 is formed in a plate shape extending in the front-rear direction and the up-down direction. The third partition wall 43 formed at the left end of the second partition wall 42 separates each signal terminal 28 from the left wall of the connector case 10. A third partition wall 43 formed at the right end of the second partition wall 42 separates each signal terminal 28 from the right wall of the connector case 10.

The first partition 41 and the second partition 42 of the shield member 40 provide an internal cable 82 for each signal and a terminal 28 for each signal exposed from the overall outer conductor 88 of the composite cable 81 and the outer conductor 86 for signals. The internal cable 83 for each power supply or the terminal 32 for each power supply can be electromagnetically shielded. Further, each third partition wall portion 43 can enhance the effect of this electromagnetic shield. Further, in the shield member 40, the first partition wall portion 41, the second partition wall portion 42, and the pair of third partition wall portions 43 are formed by, for example, bending one metal plate which is a conductive material. .. Thereby, the shield member 40 can be easily formed.

Further, as shown in FIG. 10, each third partition wall portion 43 is formed with a connector case contact portion 44 for electrically connecting the shield member 40 to the second accommodating portion 12 of the connector case 10. There is. As described above, the shield member 40 is integrated with the signal terminal housing 29 and the power supply terminal housing 33 by the coupling member 36 and incorporated into the second accommodating portion 12. At that time, a pair of left and right connector cases The contact portion 44 makes elastic contact with the pair of shield member contact portions 22 on the inner surface of the left wall and the inner surface of the right wall of the second housing portion 12, respectively.

Further, as shown in FIGS. 9 and 10, each third partition wall portion 43 is formed with a shield case contact portion 45 for electrically connecting the shield member 40 to the shield case 97 of the mating connector 91. There is. Further, a shield plate contact portion 46 as a mating shield member contact portion for electrically connecting the shield member 40 to the shield plate 98 of the mating connector 91 is formed in the lower part of the front surface of the second partition wall portion 42. There is. When the connector 1 is fitted to the mating connector 91, the shield case contact portion 45 contacts the inner peripheral surface of the shield case 97 of the mating connector 91, and the shield plate contact portion 46 is formed on the shield plate 98 of the mating connector 91. Contact with the contact convex piece 100. As a result, the shield member 10 is grounded.

Further, as shown in FIG. 9, each third partition wall portion 43 of the shield member 40 is formed with a mounting locking portion 47 (only one of which is shown) for locking the shield member 40 to the coupling member 36. There is. Further, guides 48 projecting upward are formed at the left end portion and the right end portion of the first partition wall portion 41 of the shield member 40, respectively. These pair of guides 48 have a function of guiding the power supply internal cable 83 exposed from the entire outer conductor 88 of the composite cable 81 forward.

Further, on the left and right portions of the rear end portion of the first partition wall portion 41 of the shield member 40, a pair of contact spring portions 49 for forming an electrical connection between the shield member 40 and the connection ring 51, A pair of engaging protrusions 50 for connecting and fixing the shield member 40 and the connecting ring 51 to each other are formed.

(Connecting ring)
As shown in FIG. 5, a connection ring 51 is connected to the rear end portion of the shield member 40 in the first accommodating portion 11 of the connector case 10. Then, the entire outer conductor 88 of the composite cable 81 and the signal outer conductor 86 are connected to the rear portion of the connection ring 51. As a result, the shield member 40, the entire outer conductor 88, and the signal outer conductor 86 are electrically connected. As shown in FIG. 9, the connecting ring 51 is formed in a tubular shape by connecting the upper ring piece 52 and the lower ring piece 53, which are formed in a plate shape curved so as to draw an arc by a conductive material, to each other. To. The upper ring piece 52 and the lower ring piece 53 are each provided with a connecting portion 54 for connecting the two. Further, at the axially front end portions of the upper ring piece 52 and the lower ring piece 53, overhanging portions 55 projecting outward in the radial direction are formed, respectively.

In the upper ring piece 52 and the lower ring piece 53, connection recesses 56 to which a pair of contact spring portions 49 of the shield member 40 are connected are formed on a total of four end faces where the two are fitted to each other. As shown in FIG. 11, when the upper ring piece 52 and the lower ring piece 53 are connected to each other, a pair of connecting recesses 56 formed in the upper ring piece 52 and a pair of connecting recesses 56 formed in the lower ring piece 53. When the connection recesses 56 face each other, grooves are formed at two locations on the front portion of the peripheral wall of the connection ring 51. The contact spring portion 49 of the shield member 40 is arranged in these grooves in a state of being elastically deformed by being pushed vertically by each connection recess 56. As a result, the shield member 40 and the connection ring 51 can be reliably and electrically connected.

Further, as shown in FIG. 9, a pair of engaging recesses 57 with which the pair of engaging protrusions 50 of the shield member 40 are engaged are formed at each end of the lower ring piece 53. As shown in FIG. 11, each engaging protrusion 50 is formed in a hook shape that bends downward, and each engaging recess 57 has a shape that matches the shape of the engaging protrusion 50. By engaging each engaging protrusion 50 with the engaging recess 57, the shield member 40 and the connecting ring 51 can be fixed so as not to be displaced from each other.

Further, as shown in FIG. 5, the connecting ring 51 is arranged at the front end portion of the first accommodating portion 11 so that the axial direction is the front-rear direction. Then, the overhanging portions 55 formed on the upper ring piece 52 and the lower ring piece 53 are fitted to the stepped portions 18 formed on the inner peripheral side of the front end portion of the first accommodating portion 11. It is fixed between the first accommodating portion 11 and the second accommodating portion 12.

On the other hand, in the first accommodating portion 11 of the connector case 10, the entire outer conductor 88 of the composite cable 81 and the signal outer conductor 86 are connected to the rear portion of the connection ring 51 by the clamp ring 59 and the conductive ring 60. .. Here, FIG. 12 shows a structure in which the entire outer conductor 88 and the signal outer conductor 86 are connected to the connection ring 51 by the clamp ring 59 and the conductive ring 60. As shown in FIG. 12, the clamp ring 59 is formed of a non-conductive material such as resin, but may be formed of a conductive material. Further, a flange portion 59A is formed at the rear end portion of the clamp ring 59 in the axial direction. On the other hand, the conductive ring 60 is formed of a conductive material such as metal.

At the tip of the composite cable 81, the tip of the overall insulating coating 89 is removed by terminal treatment, and the entire outer conductor 88 is exposed from the overall insulating coating 89. Further, the tip of the signal insulating coating 87 is removed, and the signal outer conductor 86 is exposed from the signal insulating coating 87. Further, each signal internal cable 82 is exposed from the entire outer conductor 88 and the signal outer conductor 86, and each power supply internal cable 83 is exposed from the entire outer conductor 88. Further, the exposed overall outer conductor 88 and the signal outer conductor 86 are each folded back to the outer peripheral side of the tip end portion of the overall insulating coating 89.

A clamp ring 59 is inserted between the overall outer conductor 88 folded back to the outer peripheral side and the signal outer conductor 86 and the overall insulating coating 89. Further, a conductive ring 60 is attached to the outer peripheral side of the folded overall outer conductor 88 and the outer peripheral side of the signal outer conductor 86. Then, the tip of the composite cable 81 to which the clamp ring 59 and the conductive ring 60 are attached is inserted into the connection ring 51. As a result, the entire outer conductor 88 and the signal outer conductor 86 come into contact with the inner peripheral surface of the conductive ring 60, and the outer peripheral surface of the conductive ring 60 comes into contact with the inner peripheral surface of the connecting ring 51. As a result, the entire outer conductor 88 and the signal outer conductor 86 are electrically connected to the connection ring 51.

Further, as shown in FIG. 5, a seal ring 61 into which the composite cable 81 is inserted is arranged behind the clamp ring 59 in the first accommodating portion 11, and the composite cable 81 and the connector are connected by the seal ring 61. The space between the case 10 and the case 10 is waterproof. Further, in the first accommodating portion 11, a cable clamp 62 for tightening the composite cable 81 is arranged behind the seal ring 61. Then, the cap 63 is fastened to the cap mounting portion 15 of the first accommodating portion 11. By tightening the cap 63, the connection ring 51, the seal ring 61, and the cable clamp 62 are fixed in the first accommodating portion 11 (cable mounting portion 14), and the composite cable 81 is tightened and fixed by the cable clamp 62. ..

According to the connector 1 according to the first embodiment of the present invention, the shield member 40 makes the L-shaped space in the connector case 10 a space in which the internal cable 82 for each signal and the terminal 28 for each signal are arranged. , Each power supply internal cable 83 and each power supply terminal 32 can be divided into a space for arrangement. As a result, it is possible to realize a small L-shaped connector having a shield structure that electromagnetically shields each signal internal cable 82 and each signal terminal 28 with respect to each power supply internal cable 83 or each power supply terminal 32. For example, it is possible to promote space saving around moving parts in industrial robots.

Further, the first partition wall portion 41 of the shield member 40 is formed in a plate shape extending in the front-rear direction and the left-right direction, and the space in the second accommodating portion 12 of the connector case 10 is divided into a lower space and an upper space. At the same time, the second partition wall portion 42 is formed in a plate shape that expands in the vertical and horizontal directions, and the space inside the second accommodating portion 12 is divided into a rear space and a front space. A space for arranging each signal internal cable 82 connected to the terminal 28 and a space for arranging each power supply internal cable 83 connected to each power supply terminal 32 can be efficiently formed in the connector case 10. .. Therefore, two types of internal cables, one for signals and the other for power supply, can be comfortably accommodated in the small connector case 10, and the connector case 10 includes a terminal housing or the like to which each terminal to which these internal cables are connected is attached. It can be easily assembled inside. Further, the shield member 40 can be easily assembled in the L-shaped space in the connector case 10.

Further, the connector 1 of the first embodiment of the present invention has a function of arbitrarily selecting the drawing direction of the composite cable 81 from the connector 1. Here, FIG. 13 shows the connector 1 as viewed from below, and FIG. 14 shows two drawing directions of the composite cable 81 from the connector 1. As shown in FIG. 13, the shapes of the connector case 10, the coupling member 36, and the shield member 40 are shaped so that they can be attached to the signal terminal housing 29 and the power supply terminal housing 33 even if they are rotated 180 degrees. It is formed. As a result, the direction of the composite cable 81 drawn out from the connector case 10 can be changed by 180 degrees. The arrangement of the connector case 10, the coupling member 36, and the shield member 40 is rotated 180 degrees from the arrangement shown in FIG. 14A with respect to the signal terminal housing 29 and the power supply terminal housing 33, and is shown in FIG. 14B. In the case of the arrangement, when the orientation of the second accommodating portion 12 of the connector case 10 is fixed and considered, the arrangement of the signal terminal housing 29 and the power supply terminal housing 33 in the front-rear direction in the second accommodating portion 12 is arranged. At the same time, the arrangement of the signal internal cable 82 and the power supply internal cable 83 in the vertical direction is reversed. Further, in the arrangement shown in FIG. 14A, the upper side, the right side and the left side of the signal terminal housing 29 were covered with the shield member 40, but in the arrangement shown in FIG. 14B, the upper side of the power supply terminal housing 33. , The right side and the left side will be covered with the shield member. However, such a change in arrangement does not particularly affect the effect of the electromagnetic shield on each signal internal cable 82 by the shield member 40, each power supply internal cable 83 of each signal terminal 28, and each power supply terminal 32. As described above, according to the connector 1 of the first embodiment of the present invention, the pull-out direction of the composite cable 81 is selected according to the situation of the installation location of the mating connector 91, the position of the other connection destination of the composite cable 81, and the like. For example, it is possible to further promote space saving around moving parts in industrial robots.

(Second Embodiment)
FIG. 15 shows the appearance of the connector 121 of the second embodiment of the present invention, and FIG. 16 shows a state in which the connector 121 is disassembled. As shown in FIG. 15, in the connector 121 of the second embodiment of the present invention, two independent multi-core cables such as a signal multi-core cable 111 and a power supply multi-core cable 112 are attached to the connector case 130. Can be done. In the connector 121, the connector case 130 includes a first accommodating portion 131 and a second accommodating portion 132, similarly to the connector case 10 of the connector 1 of the first embodiment. Then, as shown in FIG. 16, two cable insertion portions 133 and two cap attachment portions 134 are formed in the first accommodating portion 131 of the connector case 130. Further, the connector 121 includes two conductive rings 60, two clamp rings 59, two seal rings 61, two cable clamps 62, and two caps 63. Further, the connection ring 136 having the upper ring piece 137 and the lower ring piece 138 has the signal multi-core cable 111 and the power supply multi-core cable 112 with the tips of both the signal multi-core cable 111 inserted inside. It is formed in a long tubular shape in the left-right direction so that it can come into contact with the outer conductor of the cable 111 or the outer conductors of both multi-core cables 111 and 112. Although the shape of the portion connected to the connection ring 136 at the rear end of the shield member 135 is different from the shape of the portion of the shield member 40 in the first embodiment, the rear end of the shield member 135 is the connection ring 136. It has a shape that is electrically connected to and fixed to.

Similar to the shield member 40 in the first embodiment, the shield member 135 divides the space in the second accommodating portion 132 of the connector case 130 into a lower and rear space and a space from the upper part to the front part. To do. For example, the signal multi-core cable 111 is inserted into the cable insertion portion 133 on the right side, and each internal cable of the signal multi-core cable 111 is arranged in the lower and rear spaces in the connector case 130. On the other hand, the power supply multi-core cable 112 is inserted into the cable insertion portion 133 on the left side, and each internal cable of the power supply multi-core cable 112 is arranged in the space from the upper portion to the front portion in the connector case 130. The arrangement of the signal multi-core cable 111 and the power supply multi-core cable 112 can be reversed left and right, and the arrangement of each internal cable of the signal multi-core cable 111 and 112 of the power supply multi-core cable 112 is upside down. Can be. The remaining configuration is substantially the same as that of the connector 1 of the first embodiment of the present invention.

The connector 121 of the second embodiment of the present invention having such a configuration can also obtain the same action and effect as the connector 1 of the first embodiment of the present invention.

(Third Embodiment)
FIG. 17 shows the connector 141 of the third embodiment of the present invention. Further, FIG. 18 shows a shield member 153 in the connector 141. As shown in FIG. 17, the shield member 153 provided in the connector case 150 of the connector 141 of the third embodiment of the present invention divides the space in the connector case 150 into a space on the left side and a space on the right side. To do.

That is, as shown in FIG. 18, the shield member 153 formed of the conductive material is formed in a plate shape that expands in the front-rear direction and the vertical direction, and the space in the first accommodating portion 151 of the connector case 150 is on the left side. The first partition wall portion 154 that divides the space into the space on the right side and the space inside the second accommodating portion 152 of the connector case 150 that is formed in a plate shape that expands in the front-rear direction and the vertical direction are referred to as the space on the left side. It has a second partition wall portion 155 that is divided into a space on the right side portion. For example, the signal terminal is arranged in the space on the right side of the second accommodating portion 152, and the signal internal cable is arranged in the space on the right portion of each of the first accommodating portion 151 and the second accommodating portion 152. To. On the other hand, the power supply terminal is arranged in the space on the left side of the second accommodating portion 152, and the internal power cable is arranged in the space on the left portion of each of the first accommodating portion 151 and the second accommodating portion 152. To. Further, the shield member 153 includes a front partition wall portion 156 that separates the signal terminal and the front wall of the connector case, a right partition wall portion 157 that separates the signal terminal and the right wall of the connector case, or a signal terminal. An upper partition wall portion 158 may be provided to separate the connector case from the upper wall of the connector case. Further, the shield member 153 is connected to the outer conductor of the internal signal cable or the like via the connection ring in substantially the same manner as the connector 1 of the first embodiment of the present invention.

Even with the connector 141 having such a configuration, the shield member 153 creates an L-shaped space in the connector case 150, a space in which an internal signal cable and a signal terminal are arranged, an internal power cable, and a power supply. It can be divided into a space where terminals are arranged. Thereby, it is possible to realize a small L-shaped connector having a shield structure that electromagnetically shields the signal internal cable and the signal terminal with respect to the power supply internal cable or the power supply terminal.

The connector 1 (121, 141) of each embodiment of the present invention includes both one or more cables whose outer peripheral side is surrounded by an outer conductor and one or more cables whose outer peripheral side is not surrounded by an outer conductor. It can be widely applied when it is attached to one connector. Further, the connector 1 (121, 141) of each embodiment of the present invention can also be applied to a case where two or more cables whose outer peripheral side is surrounded by an outer conductor are attached to one connector.

Further, in the first embodiment of the present invention described above, the second accommodating portion 12 of the connector case 10 is formed of a conductive material, and the internal cable 82 for each signal and the terminal 28 for each signal are attached to the outside of the connector 1. As an example, the second accommodating portion 12 is formed of a non-conductive material, and the electromagnetic shield for the outside of the connector 1 of each signal internal cable 82 and each signal terminal 28 is shielded by the shield member 40. It may be done by. The same applies to the second and third embodiments of the present invention described above.

Further, in each of the above-described embodiments of the present invention, a detection device that detects the connection of an electric path that supplies a power supply voltage for driving a motor that moves a moving part of an industrial robot to the motor, the amount of rotation of the moving part, and the like. As an example, the case where the connector 1 (121, 141) is used for connecting the electric path for extracting the detection signal output from the connector 1 (121, 141) is used, for example, the power supply voltage for operating the camera is set. It can also be applied to the connection of the electric path supplied to the camera and the connection of the electric path for outputting the image information and the like captured by the camera from the camera. The connector 1 (121, 141) can also be applied to connect two signal paths that need to be electromagnetically shielded from each other.

Further, the present invention can be appropriately modified within a range not contrary to the gist or idea of the invention that can be read from the claims and the entire specification, and the connector accompanied by such modification is also included in the technical idea of the present invention. Is done.

1, 121, 141 Connector 10, 130, 140 Connector case 11, 131, 151 First accommodating part 12, 132, 152 Second accommodating part 14, 133 Cable insertion part 15, 134 Cap mounting part 22 Shield member contact part 28 Signal terminal 29 Signal terminal housing 32 Power supply terminal 33 Power supply terminal housing 36 Connector member 40, 135, 153 Shield member 41, 154 First partition wall 42, 155 Second partition wall 43 Third partition wall 44 Connector case contact part 46 Shield plate contact part 49 Contact spring part 50 Engagement protrusion 51, 136 Connection ring (connection member)
56 Connection recess 57 Engagement recess 81 Composite cable 82 Internal signal cable (first cable)
83 Internal cable for power supply (second cable)
84 Inner conductor 86 Signal outer conductor (first cable)
88 Overall outer conductor 91 Mating connector 98 Shield plate

Claims (8)

A first terminal group including a plurality of terminals connected to a plurality of first cables whose outer peripheral side is surrounded by an outer conductor, and a first terminal group.
A second terminal group including a plurality of terminals connected to a plurality of second cables,
It is formed in an L shape having a tubular first accommodating portion whose axial direction is the X direction and a tubular second accommodating portion whose axial direction is the Z direction orthogonal to the X direction. A connector in which the plurality of first cables and the plurality of second cables are inserted in the accommodating portion, and the first terminal group and the second terminal group are arranged in the second accommodating portion. With the case
A shield member arranged in the connector case, formed of a conductive material, and electrically connected to the outer conductor.
The shield member is formed in an L shape having a plate-shaped first partition wall extending in the X direction and a plate-shaped second partition wall extending in the Z direction.
The first partition wall is separated from a portion of the plurality of first cables from which the outer conductor has been removed and the plurality of second cables, and the second partition wall is the first terminal group. A connector characterized in that it is separated from the second terminal group. Assuming that the direction orthogonal to the X direction and the Z direction is the Y direction, the first partition wall portion is formed in a plate shape extending in the X direction and the Y direction, and the space inside the connector case is the space on one side in the Z direction and the Z direction. Divided into a space on the other side in the direction, the second partition wall portion is formed in a plate shape extending in the Z direction and the Y direction, and the space inside the connector case is divided into a space on one side in the X direction and a space on the other side in the X direction. The connector according to claim 1, wherein the connector is divided into and. The shield member is formed in a plate shape extending in the X direction and the Z direction, and is provided with a third partition wall portion that separates the first terminal group from the wall portion of the connector case. The connector according to claim 2. Assuming that the direction orthogonal to the X direction and the Z direction is the Y direction, the first partition wall portion is formed in a plate shape extending in the X direction and the Z direction, and the space in the first accommodating portion is a space on one side in the Y direction. The second partition wall portion is formed in a plate shape extending in the X direction and the Z direction, and the space in the second accommodating portion is divided into a space on one side in the Y direction and a space on the Y direction. The connector according to claim 1, wherein the connector is divided into a space on the other side. A connecting member for connecting the shield member and the outer conductor is provided, the connecting member is formed in a ring shape having an axial direction of X, and the connecting member has a plurality of connecting members from one side in the axial direction of the connecting member. 1 to 4, wherein the first cable and the plurality of second cables are inserted, and the end portion of the first partition wall portion is inserted from the other side in the axial direction of the connecting member. The connector described in any of. The connector case is formed of a conductive material, and the shield member protrudes from a part of the shield member, and the protruding end portion comes into contact with the connector case to electrically move between the shield member and the connector case. The connector according to any one of claims 1 to 5, further comprising a connector case contact portion for connecting. The connector according to any one of claims 1 to 6, wherein a mating shield member contacting portion that comes into contact with the shield member of the mating connector is formed at the other end of the second partition wall portion in the Z direction. .. In a state where the second partition wall portion is arranged between the first terminal housing that supports each terminal of the first terminal group and the second terminal housing that supports each terminal of the second terminal group. The first terminal housing, the second terminal housing, and a connecting member for connecting the shield member are provided, and the connecting member is supported in the second accommodating portion. The connector according to any one of claims 1 to 7, wherein the second terminal housing and the shield member are fixed in the second housing portion.

Images