JP5114275B2 - Shield connector structure - Google Patents

Description

  The present invention includes a pair of connectors having a conductive shield shell that covers a connector housing that accommodates terminal fittings, and a conductive connector mounting portion. The shield shell is brought into contact with the connector mounting portion to reduce noise and the like. The present invention relates to a shield connector structure for grounding.

  Various electronic devices are mounted on an automobile as a moving body. For this reason, the said motor vehicle has wired the wire harness in order to supply a signal and electric power to the electronic device mentioned above. Such a wire harness includes a plurality of electric wires and a connector attached to the electric wires.

  For example, a three-phase AC motor may be used as a traveling motor in the above-described automobile, for example, in an electric vehicle, a hybrid vehicle, or a fuel cell vehicle. Since the electric power is supplied, electrical noise leaks to the outside from the terminal fitting of the connector that supplies electric power to the motor described above, and electrical noise flows from the terminal fitting to other terminal fittings. was there.

  As a technique for solving such a problem, for example, a shield connector (see, for example, Patent Document 1) has been proposed. The shield connector includes an insulating connector housing including a terminal accommodating portion that accommodates a terminal fitting and an outer housing disposed outside the terminal accommodating portion, a conductive inner shield shell that covers the terminal accommodating portion, an inner A conductive outer shield shell provided separately from the shield shell and in contact with the inner shield shell to cover the outer housing. One end of the inner shield shell and the outer shield shell is grounded.

The mating shield connector fitted to the shield connector has, for example, an insulating connector housing having a terminal accommodating portion for accommodating a terminal fitting, and a conductive shield shell covering the connector housing. When the shield connectors are fitted to each other, the shield shell and the inner shield shell are electrically connected. The electrical noise leaking to the outside from the terminal fitting or the electrical noise flowing into the interior becomes a return current and flows from the shield shell to the inner shield shell, and then from the inner shield shell and the inner shield. After flowing from the shell to the outer shield shell, it is discharged to the outside.
JP 2006-310164 A

  However, a part of the electrical noise described above flows from the shield shell of the shield connector of the other party to the outer shield shell through the inner shield shell of the shield connector and is released to the outside. From this shield shell to the outer shield shell There is a problem in that the path between the terminals becomes longer, the return resistance is less likely to flow due to the electrical resistance of the path, and electrical noise is not sufficiently released.

  The present invention aims to solve such problems. That is, an object of the present invention is to provide a shield connector structure capable of exhibiting good shielding performance by shortening a path through which a return current flows and effectively releasing noise.

In order to solve the above problems and achieve the object, the present invention described in claim 1 includes a terminal metal fitting, an insulating connector housing having a terminal accommodating portion for accommodating the terminal metal fitting, and the connector housing. A pair of matable connectors having at least a conductive shield shell covering at least the terminal accommodating portion, and a conductive connector mounting portion for contacting the shield shell of at least one connector and grounding the shield shell And a shield connector structure in which the shield shells are shield-connected when the connectors are fitted to each other, wherein both of the shield shells of the pair of connectors cover at least the terminal accommodating portion, and the shell body When the connectors are connected to each other, they are connected to the connector mounting portion. And a connection portion, one of said connecting portion, in conjunction provided a pair of protruding from the shell body, it protrudes toward the connector attaching portion, and, wherein said connectors are fitted with each other It is provided so as to generate an elastic restoring force so as to abut against the connector mounting portion and elastically deform to press the connector mounting portion, and the other of the connection portions is provided to protrude from the shell body, and the connector When the connectors are fitted to each other so that they can be fixed with screws, the one connection portion is at a position different from the fixed position where the other connection portion is fixed to the connector attachment portion. A shield connector structure is provided so as to be in contact with the connector mounting portion .

According to a second aspect of the present invention, in the shielded connector structure according to the first aspect, a width in a direction intersecting a protruding direction of the connection portion at a base end portion of the other connection portion is the shell. The shield connector structure is characterized in that the main body is formed to be equal to the width in the intersecting direction.

According to a third aspect of the present invention, in the shield connector structure according to the second aspect , the other connecting portion is formed in a trapezoidal shape such that the width gradually decreases toward the tip. This is a shield connector structure characterized by that.

  According to the present invention described in claim 1, since both of the shield shells of the pair of connectors are provided with the connection portions that connect to the connector mounting portions when the connectors are fitted to each other, the respective shield shells are shielded. Noise becomes a return current and flows directly to the connector mounting portion and is emitted to the outside.

Also, hand the connecting portion is provided to project toward the connector mounting portion, and an elastic restoring to press the elastic deformation to the connector mounting portion in contact with the connector mounting portion and those when the connectors are fitted to each other Since it is provided so as to generate a force, the connecting portion is securely connected to the connector mounting portion.

According to the present invention described in claim 2, as the direction of width intersecting the direction of projecting of the connecting portion at the proximal end of the other coupling part is equal to the width of the intersection of the shell body Since the width of the crossing direction at the base end portion of the connecting portion is widened, the electrical resistance does not increase rapidly in the path from the shell body to the connecting portion, and the connector of the connecting portion The contact area with the mounting portion is enlarged, and the contact resistance is reduced.

According to the third aspect of the present invention, since the other connecting portion is formed in a trapezoidal shape such that the width gradually decreases toward the tip, the tip portion of the connecting portion becomes an obtuse angle. Compared with the case where the tip portion is at a right angle, the return current flowing into the connecting portion is likely to flow to the connector mounting portion, and the electric field distribution becomes uniform.

  According to the invention described in claim 1, since both of the shield shells of the pair of connectors are provided with connection portions that are connected to the connector mounting portions when the connectors are fitted to each other, each shield shell is shielded. Noise becomes a return current and flows directly to the connector mounting portion and is emitted to the outside. Therefore, a good shielding property can be exhibited by shortening the path through which the return current flows and effectively releasing noise.

Also, hand the connecting portion is provided to project toward the connector mounting portion, and an elastic restoring to press the elastic deformation to the connector mounting portion in contact with the connector mounting portion and those when the connectors are fitted to each other Since it is provided so as to generate a force, the connecting portion is securely connected to the connector mounting portion. Therefore, it is possible to reliably emit noise and exhibit good shielding properties.

According to the second aspect of the present invention, the width in the direction intersecting the protruding direction of the connecting portion at the base end of the other connecting portion is formed to be equal to the width of the shell body in the intersecting direction. Therefore, the width in the intersecting direction at the base end portion of the connecting portion is widened, the electric resistance does not increase rapidly in the path from the shell body to the connecting portion, and the connector is attached to the connecting portion. The contact area with the part is enlarged, and the contact resistance is reduced. Therefore, it is possible to exhibit good shielding performance by reducing the electric resistance of the path through which the return current flows and effectively releasing noise.

According to the invention described in claim 3 , since the other connecting portion is formed in a trapezoidal shape such that its width gradually decreases toward the tip, the tip portion of the connecting portion becomes an obtuse angle, Compared with the case where the tip portion is a right angle, the return current flowing into the connection portion easily flows to the connector mounting portion, and the electric field distribution becomes uniform. Therefore, a good shielding property can be exhibited by effectively emitting noise.

  Hereinafter, a shield connector structure 1 according to a first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1 and the like, a shield connector structure 1 according to the first embodiment of the present invention includes a pair of connectors 2 having shield shells 23 (FIG. 7) and 63 (FIG. 3) that can be fitted to each other. 6 and a conductive connector mounting portion 11 that contacts the shield shell 23 of at least one connector 2 and grounds the shield shell 23. When the connectors 2 and 6 are fitted to each other, the shield shells 23 and 63 are shield-connected.

  “Shield connection” means a state in which the shield shells 23 and 63 cover the entire circumferential direction of terminal fittings 21 and 61 (described later) disposed in the shield shells 23 and 63. When the shield shells 23 and 63 are shield-connected, electrical noise leaking to the outside from the terminal fittings 21 and 61 arranged in the shield shells 23 and 63 or electrical noise flowing into the shield shells 23 and 63. Is reliably shielded by the shield shells 23, 63.

  The connector attachment portion 11 is attached to a housing such as an electronic device. The connector mounting portion 11 is made of a conductive metal material, and is provided in a flat plate shape as shown in FIG. The connector attachment portion 11 is provided with a hole 11a through which one connector 2 is passed, and a screw hole into which a connection portion 49 described later of the one connector 2 is screwed.

  When the connectors 2 and 6 are fitted to each other and the shield shells 23 and 63 are shield-connected, connection portions 49 and 83 (to be described later) provided on both the shield shells 23 and 63 are connected to the connector mounting portion 11. The electrical noise leaking to the outside from the terminal fittings 21 and 61 or the electrical noise flowing into the interior is grounded to the electronic device through the shield shells 23 and 63 and the connector mounting portion 11 respectively.

  The pair of connectors 2 and 6 includes one connector 2 and the other connector 6. As shown in FIGS. 6 and 7, one connector 2 includes a terminal fitting 21, an insulating connector housing 22 having a terminal accommodating portion 30 for accommodating the terminal fitting 21, and at least a terminal accommodating portion of the connector housing 22. And a conductive shield shell 23 covering 30.

  The terminal fitting 21 is made of a conductive metal material and has an L-shaped bar shape. A plurality (four in the illustrated example) of terminal fittings 21 are provided. The terminal fitting 21 is provided at one end of the L-shaped bar and is in contact with the other terminal fitting 21. The terminal 21b is provided at the other end of the L-shaped and exposed to the outside of the connector. A holding portion 21 c provided between the contact portion 21 a and the terminal portion 21 b and held in the main body portion 31 of the terminal accommodating portion 30 is provided. The terminal fitting 21 is arranged so that the electrical contact portion 21 a is parallel to the axis of the connector housing 22 and the terminal portion 21 b is orthogonal to the axis of the connector housing 22. Retained.

  As shown in FIGS. 6 and 7, the connector housing 22 includes a terminal accommodating portion 30 and an outer housing 35 disposed outside the terminal accommodating portion 30. The terminal accommodating portion 30 is made of an insulating synthetic resin or the like, and is formed in a substantially rectangular tube shape as a whole. The terminal accommodating portion 30 is provided at one end portion in the longitudinal direction, and a main body portion 31 that accommodates the holding portion 21c of the terminal fitting 21 therein, and the electrical contact portion 21a of the terminal fitting 21 provided at the other end portion in the longitudinal direction. And an inner hood portion 32 projecting from the hood. On a pair of side surfaces of the main body portion 31, step portions 31 a (FIG. 2) that engage with locking pieces 42 of an inner shield shell 40 described later are provided.

  The outer housing 35 is made of an insulating synthetic resin or the like, and is formed in a substantially rectangular tube shape as a whole. The outer housing 35 is provided at one end portion in the longitudinal direction and has a main body portion 36 that accommodates a terminal accommodating portion 30 in which an inner shield shell 40 to be described later is attached. The outer housing 35 is provided at the other end portion in the longitudinal direction and accommodates terminals therein. The outer hood part 37 from which the part 30 protrudes and a plurality of protrusions 38 provided on the outer surface of the main body part 36 and the outer hood part 37 and engaged with cutout parts 47a of an outer shield shell 45 described later. .

  The inner diameter of a part of the main body portion 36 is formed small so as to be substantially equal to the outer diameter of the inner shield shell 40. On the inner surface of the main body portion 36 away from the outer hood portion 37, a locking projection 36 a is provided that protrudes from the inner surface and engages with the end portion of the terminal accommodating portion 30. Further, on the inner surface of the distal end portion of the outer hood portion 37, a lock portion 37 a is provided that protrudes from the inner surface and engages with a lock arm 79 described later of the other connector 6.

  As shown in FIGS. 6 and 7, the shield shell 23 is provided separately from the inner shield shell 40 that covers the terminal accommodating portion 30 and the inner shield shell 40, and contacts the inner shield shell 40 to cover the outer housing 35. A shell main body 24 having an outer shield shell 45 and a connection portion 49 connected to the connector mounting portion 11 and connected to the shell main body 24 are provided.

  The inner shield shell 40 is made of a conductive metal material, and is formed, for example, by bending a sheet metal or the like. The inner shield shell 40 includes a cylindrical portion 41 that is superimposed on the outer peripheral surface of the terminal accommodating portion 30, and a pair of locking pieces 42 (FIG. 2, etc.) that are connected to the cylindrical portion 41 and protrude into the cylindrical portion 41.

  One end portion in the longitudinal direction of the cylindrical portion 41 is opened in parallel to the longitudinal direction. A curved portion 41 b that is curved so as to approach the inside of the tubular portion 41 is provided at one end portion in the longitudinal direction of the tubular portion 41. A bent portion 41a is provided at the other end portion in the longitudinal direction of the cylindrical portion 41, and the other end portion in the longitudinal direction is opened in a direction orthogonal to the longitudinal direction by the bent portion 41a.

  The pair of locking pieces 42 are provided so that the axial center of the cylindrical portion 41 is positioned between each other. The locking piece 42 is provided in a band plate shape along the direction in which the connectors 2 and 6 are brought into contact with or separated from each other (fitted or disconnected), and one end near the other connector 6 is a free end, The other end away from the connector 6 is connected to the cylindrical portion 41. One end of the locking piece 42 is provided so as to be elastically deformable so as to approach the inner surface of the cylindrical portion.

  The terminal accommodating portion 30 is inserted into the inner shield shell 40 configured as described above. Then, the locking piece 42 of the inner shield shell 40 engages with the step portion 31 a of the terminal accommodating portion 30 (FIG. 2), and the curved portion 41 b of the inner shield shell 40 is connected to the tip of the inner hood portion 32 of the terminal accommodating portion 30. The terminal accommodating portion 30 is held in the inner shield shell 40 by engaging (FIG. 7) (the inner shield shell 40 is attached to the terminal accommodating portion 30). The inner shield shell 40 is arranged so as to cover the entire terminal accommodating portion 30.

  The outer shield shell 45 is made of a conductive metal material, and is formed, for example, by bending a sheet metal or the like. The outer shield shell 45 includes an upper plate portion 46 that overlaps the upper surface of the outer housing 35, a pair of side plate portions 47 that are continuous with both ends in the width direction of the upper plate portion 46 and overlap the side surfaces of the outer housing 35, and the upper plate portion 46. And a folded portion 48 provided on each of the pair of side plate portions 47.

  The distance between the pair of side plate portions 47 is slightly smaller than the distance between the side surfaces of the outer housing 35. The pair of side plate portions 47 is provided with a plurality of cutout portions 47a through which the protrusions 38 of the outer housing 35 are passed.

  The folded portions 48 are respectively connected to one end portion in the longitudinal direction of the upper plate portion 46 and the pair of side plate portions 47, and are folded from the one end portion toward the inner surface of the outer shield shell 45 to form a substantially L-shaped cross section. Has been. A tip 48 a of the folded portion 48 (that is, a portion disposed substantially parallel to the upper plate portion 46 or the pair of side plate portions 47) is provided so as to be elastically deformable so as to approach the inner surface of the outer shield shell 45.

  The outer shield shell 45 having the above-described configuration is attached to the outer housing 35 so that the protrusion 38 of the outer housing 35 passes through the notch 47a. Then, the pair of side plate portions 47 sandwich the outer housing 35, and the outer shield shell 45 is held on the outer surface of the outer housing 35 (the outer shield shell 45 is attached to the outer housing 35).

  In one connector 2 having the above-described configuration, the terminal accommodating portion 30 to which the inner shield shell 40 is attached is inserted into the outer housing 35 to which the outer shield shell 45 is attached. And this terminal accommodating part 30 is hold | maintained in the part in which the internal diameter of the main-body part 31 became small. At this time, the distal end portion 48 a of the folded portion 48 of the outer shield shell 45 abuts on the outer surface of the inner shield shell 40 and elastically deforms and generates an elastic restoring force so as to press the outer surface of the inner shield shell 40. The outer shield shell 45 is brought into contact with the inner shield shell 40, and the terminal accommodating portion 30 is held in the outer housing 35. Further, the end portion of the terminal accommodating portion 30 abuts on the locking protrusion 36a of the outer housing 35, and prevents the terminal accommodating portion 30 from dropping from the outer housing 35 in the right direction in FIG.

  The connecting portion 49 is provided on the other end side in the longitudinal direction of the upper plate portion 46. The connecting portion 49 is formed by bending an end portion of the upper plate portion 46 so as to be orthogonal to the upper plate portion 46. The connection portion 49 is formed in a substantially rectangular shape in plan view, and a screw hole 49a penetrating the connection portion 49 is provided at the center thereof. One connector 2 is fixed by being screwed in advance to the connector mounting portion 11 with bolts 12a and nuts 12b after the screw holes 49a of the connection portion 49 are arranged to communicate with the screw holes of the connector mounting portion 11. .

  As shown in FIGS. 4 and 5, the other connector 6 includes a terminal fitting 61, an insulating connector housing 62 having a terminal accommodating portion 70 for accommodating the terminal fitting 61, and at least a terminal accommodating portion of the connector housing 62. A conductive shield shell 63 that covers 70 and a rear holder 64 are provided.

  The terminal fitting 61 is formed by bending a conductive sheet metal or the like. A plurality of terminal fittings 61 (four in the illustrated example) are provided. The terminal fitting 61 includes an electrical contact portion 61a that comes into contact with the terminal fitting 61 of one connector 2 and a wire connecting portion 61b that is connected by crimping an electric wire.

  The electrical contact portion 61 a is formed in a cylindrical shape, and is arranged so as to open so as to face the terminal fitting 21 of one connector 2. The electrical contact portion 21a of the terminal fitting 61 of one connector 2 is inserted into the electrical contact portion 61a, and the terminal fittings 21 and 61 are electrically connected. The electric wire connecting portion 61b includes a plurality of caulking pieces, and the caulking pieces caulk the ends of the electric wires to electrically connect the electric wire connecting portions 61b and the core wires of the electric wires.

  The connector housing 62 includes a terminal accommodating portion 70, an outer housing 75 disposed outside the terminal accommodating portion 70, and a lock arm 79 that is continuous with the outer housing 75.

  The terminal accommodating portion 70 is made of an insulating synthetic resin or the like. The terminal accommodating portion 70 includes a main body portion 71 having a substantially rectangular tube shape, a thick plate terminal holder 72 to which the terminal fitting 61 is attached and held in the main body portion 71, and an electric wire connected to the terminal fitting 61. A cylindrical electric wire cover 73 is provided.

  The main body 71 includes a large diameter portion 71a provided at one end portion in the longitudinal direction, a small diameter portion 71b provided at the other end portion in the longitudinal direction, and a large diameter portion 71a and a small diameter portion 71b on the outer surface of the main body portion 71. And a stepped portion 71c provided therebetween. The large diameter portion 71a has a larger outer diameter and inner diameter than the small diameter portion 71b. A terminal holder 72 and an electric wire cover 73 are accommodated in the large diameter portion 71a. An upper shield shell 86 (to be described later) of the shield shell 63 is attached to the outer surface of the large diameter portion 71a. The terminal fitting 61 is arranged over the large diameter portion 71a and the small diameter portion 71b.

  The outer housing 75 is formed in a substantially rectangular tube shape as a whole. The outer housing 75 is integrally provided with a main body portion 76 that accommodates the terminal accommodating portion 70 to which the shield shell 63 is attached, and a pair of short cylindrical portions 77 that are provided in a cylindrical shape on the outer surface of the main body portion 76. .

  A plurality of locking projections 76 a are provided on the inner surface of the main body 76 so as to protrude from the inner surface. The step 71c of the main body 71 of the terminal accommodating portion 70 and the locking piece 85 of the lower shield shell 80 described later are engaged with the plurality of locking protrusions 76a.

  The lock arm 79 is provided so as to protrude from the outer surface of the outer housing 75. The lock arm 79 includes an arm main body 79a connected to the outer housing 75, and a lock portion 79b provided so as to protrude from the outer surface of the arm main body 79a.

  A pair of arm main bodies 79a are provided extending from one end portion of the outer housing 75 facing the one connector 2 in a direction in which the connectors 2 and 6 are in contact with and away from each other. The pair of arm main bodies 79a are provided in parallel to each other with a space therebetween. The arm body 79 a is provided so as to be elastically deformable so as to approach the outer surface of the outer housing 75. The lock portion 79b is provided at the tip of the arm body 79a, and couples the pair of arm bodies 79a in a direction orthogonal to the longitudinal direction of the arm body 79a.

  In the lock arm 79 having the above-described configuration, when the outer housing 75 of the other connector 6 is inserted into the outer housing 35 of the one connector 2, the lock portion 79 b is provided in the outer housing 35 of the one connector 2. The arm main body 79a is elastically deformed so as to approach the outer surface of the outer housing 75 in contact with the lock portion 37a. Then, when the lock portion 79b gets over the lock portion 79b of one connector 2, the arm main body 79a is elastically restored, and the lock portions 37a and 79b are engaged with each other to hold the connectors 2 and 6 fitted together.

  The shield shell 63 includes a shell main body 65 that includes an upper shield shell 86 and a lower shield shell 80 and covers at least the terminal accommodating portion 70, and a connection portion 83 that is continuous with the shell main body 65 and is connected to the connector mounting portion 11. . The upper shield shell 86 is made of a conductive metal material, and is formed, for example, by bending a sheet metal or the like. The upper shield shell 86 as a whole is formed in a substantially square hook shape (cross-sectional U shape). The width of the upper shield shell 86 is slightly smaller than the width of the large diameter portion of the terminal accommodating portion 70. The upper shield shell 86 is attached to the large-diameter portion 71a so as to cover the upper surface (upper side in FIG. 5) and the pair of side surfaces of the large-diameter portion 71a of the terminal accommodating portion 70.

  The lower shield shell 80 is made of a conductive metal material, and is formed, for example, by bending a sheet metal or the like. The lower shield shell 80 includes a belt-like bottom plate portion 81 (FIG. 2 and the like) and a pair of side plate portions 82 (FIG. 2 and the like) standing from both ends in the width direction of the bottom plate portion 81, and is substantially omitted as a whole. It is formed in a square bowl shape (cross-sectional U shape). The pair of side plate portions 82 includes a contact piece 84 and a locking piece 85 as shown in FIG.

  The contact piece 84 is provided on each side plate portion 82 of the pair of side plate portions 82. The contact piece 84 is formed by cutting out a part of the side plate portion 82 and bending it inward of the lower shield shell 80. The contact piece 84 is provided in a strip shape along the direction in which the connectors 2 and 6 come in contact with and away from each other, one end near the one connector 2 is a free end, and the other end away from the one connector 2 is a side plate. It is connected to the part 82. The contact piece 84 is bent at the center in the longitudinal direction, and the distance between the pair of contact pieces 84 is wide on the proximal end side and the distal end side, and the bent portion (center portion) is narrow. The contact pieces 84 are provided substantially parallel to each other, and are provided so as to be elastically deformable in a direction in which the distance between the contact pieces 84 increases.

  When the connectors 2 and 6 are fitted to each other, the pair of contact pieces 84 configured as described above are elastically deformed and the inner shield shell 40 of one connector 2 is positioned between them, and then the inner shield is elastically restored. The shell 40 is held between each other. Then, the contact piece 84 (that is, the shield shell 63) and the inner shield shell 40 are connected.

  A pair of locking pieces 85 are provided so as to protrude from the outer surfaces of the side plate portions 82 of the pair of side plate portions 82. The locking piece 85 is provided in a strip shape along the direction in which the connectors 2 and 6 are brought into contact with and separated from each other, one end portion near one connector 2 is connected to the side plate portion 82, and the other end separated from the one connector 2. The part is a free end. The other end portion of the locking piece 85 is provided so as to be elastically deformable so as to approach the side plate portion 82. The locking piece 85 engages with the locking protrusion 76 a of the outer housing 75.

  The terminal accommodating portion 70 to which the upper shield shell 86 is attached is attached to one end portion in the longitudinal direction of the lower shield shell 80 configured as described above. The lower shield shell 80 is attached so as to cover the lower surface (lower side in FIG. 5) and the pair of side surfaces of the terminal accommodating portion 70. The lower shield shell 80 and the upper shield shell 86 (that is, the shell main body 65) are arranged so as to cover the entire terminal accommodating portion 70, that is, the entire terminal fitting 61. At the other end in the longitudinal direction of the lower shield shell 80, an electric wire connected to the terminal fitting 61 is disposed.

  A pair of connection portions 83 are provided so as to protrude from the outer surfaces of the side plate portions 82 of the pair of side plate portions 82. The connecting portion 83 includes a connecting piece 83a that is continuous with the side plate portion 82, and a rectangular flat plate-like connecting piece 83b that is provided at the tip of the connecting piece 83a so as to be orthogonal to the side plate portion 82. The connection piece 83b is provided so as to be elastically deformable in a direction away from one end portion in the longitudinal direction of the lower shield shell 80 (that is, a direction away from the connector attachment portion 11). When the terminal accommodating portion 70 to which the lower shield shell 80 is attached is inserted into the outer housing 75, most of the connecting portion 83 is accommodated in the short cylindrical portion 77 of the outer housing 75, and the connecting piece 83b is slightly short cylindrical portion. Protrudes from 77.

  The connecting portion 83 having the above-described configuration is arranged to protrude toward the connector mounting portion 11 when the other connector 6 is brought closer to one connector 2. When the connectors 2 and 6 are fitted to each other and the inner shield shell 40 of one connector 2 and the shield shell 63 of the other connector 6 are shield-connected, the connection piece 83b comes into contact with the connector mounting portion 11 and is elastic. After the deformation, an elastic restoring force is generated to press the connector mounting portion 11. And the connection part 83 (namely, shield shell 63) and the connector attachment part 11 are connected.

  The rear holder 64 is attached to the end of the outer housing 75 away from the one connector 2. The rear holder 64 is formed in a rectangular tube shape, and allows an electric wire connected to the terminal fitting 61 to pass therethrough.

  In the other connector 6 having the above-described configuration, the terminal accommodating portion 70 to which the upper shield shell 86 and the lower shield shell 80 (that is, the shell main body 65) are attached is inserted into the outer housing 75. Then, as shown in FIG. 5, the stepped portion 71c of the main body portion 71 of the terminal accommodating portion 70 engages with the locking projection 76a of the outer housing 75, and the terminal accommodating portion 70 in the left direction in FIG. Prevents falling from 75. 2, the locking piece 85 of the lower shield shell 80 engages with the locking projection 76a of the outer housing 75, and the terminal accommodating portion 70 is detached from the outer housing 75 in the left direction in FIG. To prevent it.

  When fitting the pair of connectors 2 and 6 having the above-described configuration, first, as described above, the connection portion 49 of one connector 2 is screwed to the connector attachment portion 11 and the one connector 2 is attached to the connector. It fixes to the part 11. Then, the outer housing 75 of the other connector 6 is inserted into the outer housing 35 of the one connector 2, and the terminal housing portion of the other connector 6 is inserted into the inner hood portion 32 of the terminal housing portion 30 of the one connector 2. 70 small-diameter portions 71b are inserted.

  Then, the inner shield shell 40 of one connector 2 is sandwiched between the pair of contact pieces 84 of the lower shield shell 80 of the other connector 6 so that the lower shield shell 80 and the inner shield shell 40 are in contact with each other. Further, when the other connector 6 is brought closer to the one connector 2, the connectors 2 and 6 are fitted to each other and the terminal fittings 21 and 61 are electrically connected to each other. At this time, the tip of the upper shield shell 86 and the tip of the inner shield shell 40 are in contact with each other, and the upper shield shell 86 and the inner shield shell 40 (that is, the shield shells 23 and 63) are shield-connected.

  At this time, the connecting piece 83b of the connecting portion 83 provided on the lower shield shell 80 of the other connector 6 abuts on the connector attaching portion 11 and is elastically deformed so as to press the connector attaching portion 11. The connection part 83 of the other connector 6 and the connector attachment part 11 are connected.

  In the pair of connectors 2 and 6 fitted as described above, the noise shielded by the inner shield shell 40 of one connector 2 passes through the outer shield shell 45, the connecting portion 49, and the connector mounting portion 11 in this order to the electronic device. Grounded. Further, the noise shielded by the shield shell 63 of the other connector 6 is grounded to the electronic device through the connection portion 83 and the connector mounting portion 11 in order. In this way, the noise shielded by the inner shield shell 40 and the shield shell 63 is directly grounded to the electronic device without passing through the shield shell of another connector.

  According to the present embodiment, both of the shield shells 23 and 63 of the pair of connectors 2 and 6 include the connection portions 49 and 83 that connect to the connector mounting portion 11 when the connectors 2 and 6 are fitted to each other. The noise shielded by each of the shield shells 23 and 63 is directly returned to the connector mounting portion 11 as a return current and released to the outside. Therefore, a good shielding property can be exhibited by shortening the path through which the return current flows and effectively releasing noise.

  A connecting portion 83 is provided so as to protrude toward the connector mounting portion 11, and when the connectors 2 and 6 are fitted together, the connector mounting portion 11 comes into contact with the connector mounting portion 11 and is elastically deformed to press the connector mounting portion 11. Since the elastic restoring force is provided, the connecting portion 83 is reliably connected to the connector mounting portion 11. Therefore, it is possible to reliably emit noise and exhibit good shielding properties.

  Next, a shield connector structure 1 according to a second embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the same component as 1st embodiment mentioned above, and description is abbreviate | omitted.

  As shown in FIG. 8 and the like, the shield connector structure 1 according to the second embodiment of the present invention includes a pair of connectors 2 having shield shells 23 (FIG. 14) and 63 (FIG. 10) that can be fitted to each other. 6 and a conductive connector mounting portion 11 that contacts one shield shell 23 and grounds the shield shell 23. When the connectors 2 and 6 are fitted to each other, the shield shells 23 and 63 are shield-connected.

  In the present embodiment, the connecting portion 83 provided in the lower shield shell 80 of the other connector 6 in the first embodiment is not provided, and the second connection is made to the outer shield shell 45 of the one connector 2. A portion 91 is provided.

  As shown in FIGS. 9 and 13, the second connection portion 91 is provided on each side plate portion 47 of the pair of side plate portions 47 of the outer shield shell 45. The second connection portion 91 is formed by cutting out a part of the side plate portion 47 and bending it inward of the outer shield shell 45. The second connection portion 91 is provided in a strip shape along the direction in which the connectors 2 and 6 are fitted to each other, and one end portion near the other connector 6 becomes a free end, and the other end separated from the other connector 6. The portion is continuous with the side plate portion 47. The second connection portion 91 is bent at the center in the longitudinal direction, and the distance between the pair of second connection portions 91 is wide at the proximal end side and the distal end side, and the bent portion (center portion) is narrowed. A pair of the second connecting portions 91 are provided so as to face each other with a space therebetween, and are provided so as to be elastically deformable so as to approach the side plate portion 47 (so as to widen the mutual space).

  Further, the outer housing 35 of one connector 2 is provided with a hole 92 through which the second connecting portion 91 is passed. The hole portion 92 is formed in a straight line shape along the direction in which the connectors 2 and 6 come in contact with and away from each other, and is provided through the outer hood portion 37 of the outer housing 35. A pair of hole portions 92 are provided at positions corresponding to the pair of second connection portions 91. The second connecting portion 91 is disposed so as to protrude into the outer housing 35 by the hole 92.

  Further, as shown in FIGS. 9 and 11, when the connectors 2 and 6 are fitted to each other, the outer housing 75 of the other connector 6 communicates with the hole portion 92 and passes the second connection portion 91 therein. A second hole 93 is provided. The second hole 93 is formed in a straight line shape along the direction in which the connectors 2 and 6 come in contact with and away from the end facing the one connector 2 of the outer housing 75, and penetrates the main body 76 of the outer housing 75. Is provided. A pair of second hole portions 93 are provided at positions corresponding to the respective second connection portions 91. The lower shield shell 80 is exposed to the outside by the second hole 93.

  The second connecting portion 91 having the above-described configuration protrudes into the outer housing 35 of one connector 2 through the hole 92. The second connecting portion 91 is arranged so as to protrude toward the shield shell 63 (lower shield shell 80) when the other connector 6 is brought closer to the one connector 2. When the connectors 2 and 6 are brought closer to each other, the second connection portion 91 is connected to the lower shield shell 80 through the second hole portion 93. Then, after the second connecting portion 91 is elastically deformed so as to approach the side plate portion 47 and positions the lower shield shell 80 between them, the lower shield shell 80 is sandwiched between them by an elastic restoring force.

  The noise shielded by the inner shield shell 40 of one connector 2 is grounded to the electronic device through the outer shield shell 45, the connection portion 49, and the connector mounting portion 11 in this order. The noise shielded by the shield shell 63 of the other connector 6 is transmitted to the one connector 2 through the second connection portion 91 of the one connector 2, and passes through the outer shield shell 45 and the connector mounting portion 11 in order. Grounded to equipment. In this way, the noise shielded by the shield shell 23 of one connector 2 is directly grounded to the electronic device, and the noise shielded by the shield shell 63 of the other connector 6 is shorter through the outer shield shell 45 of the one connector 2. It is grounded to the electronic device by the route.

  According to the present embodiment, since the second connecting portion 91 provided on the outer shield shell 45 and connected to the lower shield shell 80 of the other connector 6 is provided, the shield shell 63 of the other connector 6 is provided. The shielded noise becomes a return current, flows through the outer shield shell 45 of one connector 2 to the connector mounting portion 11 and is released to the outside. Therefore, a good shielding property can be exhibited by shortening the path through which the return current flows and effectively releasing noise.

  The second connecting portion 91 is provided so as to protrude from the outer shield shell 45 toward the lower shield shell 80 of the other connector 6, and comes into contact with the lower shield shell 80 when the connectors 2 and 6 are fitted to each other. Since it is provided to generate an elastic restoring force so as to be elastically deformed and press the lower shield shell 80, the second connecting portion 91 and the lower shield shell 80 are reliably connected. Therefore, it is possible to reliably emit noise and exhibit good shielding properties.

  The connector 2 is provided through the outer housing 35 of the connector 2 and has a hole 92 through which the second connecting portion 91 is passed, so that the second connecting portion 91 passes through the hole 92 and the other. The lower shield shell 80 of the connector 6 is connected. Therefore, the second connecting portion 91 and the lower shield shell 80 can be reliably connected.

  Since the second connector 93 is provided through the outer housing 75 of the other connector 6 and has a second hole 93 through which the second connector 91 passes, the second connector 91 has a second hole. It connects with the lower shield shell 80 of the other connector 6 through the part 93. Therefore, the second connecting portion 91 and the lower shield shell 80 can be reliably connected.

  In the present embodiment, the second connection portion 91 is provided on the outer shield shell 45 of one connector 2. However, in the present invention, the second connection portion 91 may be provided in the shield shell 63 (the upper shield shell 86 or the lower shield shell 80) of the other connector 6.

  Next, a shield connector structure according to a third embodiment of the present invention will be described with reference to FIGS. 15 and 16. In addition, the same code | symbol is attached | subjected to the same component as 1st embodiment mentioned above, and description is abbreviate | omitted.

  As shown in FIG. 15, the shield connector structure according to the third embodiment of the present invention includes a connection portion 49 </ b> A corresponding to the connection portion 49 (FIG. 6) of the first embodiment. The connection portion 49A is different from the connection portion 49 of the first embodiment only in the planar shape.

  The connecting portion 49 </ b> A is provided on the shield shell 23 of one connector 2. The connecting portion 49 </ b> A is provided so as to protrude from the outer shield shell 45 of the shell body 24. The width of the direction P (FIG. 16) perpendicular to (crossing) the protruding direction of the connecting portion 49A at the base end portion of the connecting portion 49A is the width of the shell body 24 in the perpendicular (crossing) direction P, that is, the outer shield shell. 45 is substantially equal to the width of the upper plate portion 46 in the orthogonal (crossing) direction P. 49 A of connection parts are formed in the trapezoid (isosceles trapezoid shape) that the width | variety becomes narrow gradually as it goes to a front-end | tip from a base end part.

  The connecting portion 49A configured as described above has a smaller width difference between the upper plate portion 46 and the connecting portion 49A than the connecting portion 49 of the first embodiment, and the path from the outer shield shell 45 to the connecting portion 49A. The change in electrical resistance becomes smaller. Further, the width of the base end portion of the connection portion 49A is wider than the connection portion 49 of the first embodiment, the planar shape of the connection portion 49A is increased, and the contact area of the connection portion 49A with the connector mounting portion 11 is increased. Becomes larger. Furthermore, although the tip portion of the connection portion 49 of the first embodiment is a right angle, the tip portion of the connection portion 49A has an obtuse angle, and the return current easily flows to the connector mounting portion 11 through the connection portion 49A. The noise radiated to the outside can be suppressed by making the electric field distribution uniform.

  According to the present embodiment, in addition to the effects of the first embodiment described above, the connection portion 49A is provided so as to protrude from the shell body 24, and is orthogonal to the direction in which the connection portion 49A protrudes at the base end portion of the connection portion 49A. Since the width of the crossing direction P is equal to the width of the shell body 24 in the orthogonal (crossing) direction P, the width of the connecting portion 49A in the orthogonal (crossing) direction P is The electrical resistance does not increase abruptly along the path from the shell body 24 to the connecting portion 49A, and the contact area of the connecting portion 49A with the connector mounting portion 11 is expanded to reduce the contact resistance. . Therefore, it is possible to exhibit good shielding performance by reducing the electric resistance of the path through which the return current flows and effectively releasing noise.

  Since the connecting portion 49A is formed in a trapezoidal shape such that its width gradually decreases toward the tip, the tip portion of the connecting portion 49A has an obtuse angle and the tip portion has a right angle compared to the case where it is a right angle. The return current flowing into the connection portion 49A easily flows to the connector mounting portion 11, and the electric field distribution becomes uniform. Therefore, a good shielding property can be exhibited by effectively emitting noise.

  In the present embodiment, the connection portion 49 of one connector 2 of the first embodiment is the connection portion 49A, but the connection portion 49 of one connector 2 of the second embodiment is the connection portion 49A. It may be. Furthermore, the connection part 83 of the other connector 6 of the first embodiment may be formed in a planar shape like the connection part 49A. Further, the connecting portion 49 </ b> A does not necessarily have a trapezoidal shape, and may be formed wide so that at least the width thereof is equal to the width of the shell body 24.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

It is a side view showing the shield connector structure concerning a first embodiment of the present invention. It is sectional drawing along the II-II line in FIG. 1 which shows the state before a pair of connector shown by FIG. 1 mutually fits. FIG. 3 is a cross-sectional view illustrating a state in which a pair of connectors illustrated in FIG. 2 are fitted to each other. It is a perspective view which shows the other connector shown by FIG. It is sectional drawing along the VV line in FIG. It is a perspective view which shows one connector shown by FIG. It is sectional drawing along the VII-VII line in FIG. It is a side view which shows the shield connector structure concerning 2nd embodiment of this invention. It is sectional drawing along the IX-IX line in FIG. 8 which shows the state before a pair of connector shown by FIG. 8 fits mutually. FIG. 10 is a cross-sectional view illustrating a state in which the pair of connectors illustrated in FIG. It is a perspective view which shows the other connector shown by FIG. It is sectional drawing along the XII-XII line | wire in FIG. It is a perspective view which shows one connector shown by FIG. It is sectional drawing along the XIV-XIV line | wire in FIG. It is a perspective view which shows one connector of the shield connector structure concerning 3rd embodiment of this invention. FIG. 16 is a rear view showing a state in which one connector shown in FIG. 15 is screwed to the connector mounting portion.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shield connector structure 2 One connector 6 The other connector 11 Connector mounting part 21 Terminal metal fitting (one connector)
22 Connector housing (one connector)
23 Shield shell (one connector)
24 Shell body (one connector)
30 Terminal housing (one connector)
35 Outer housing (one connector)
40 Inner shield shell 45 Outer shield shell 49, 49A Connection (one connector)
61 Terminal fitting (the other connector)
62 Connector housing (the other connector)
63 Shield shell (the other connector)
65 Shell body (the other connector)
70 Terminal housing (the other connector)
75 Outer housing (other connector)
83 Connection (other connector)
91 Second connection portion 92 Hole portion 93 Second hole portion

Claims (3)

A pair of mating members having a terminal fitting, an insulating connector housing having a terminal receiving portion for receiving the terminal fitting, and a conductive shield shell covering at least the terminal receiving portion of the connector housing. With a connector
A conductive connector mounting portion that contacts the shield shell of at least one connector and grounds the shield shell;
In the shield connector structure in which the shield shells are shield-connected when the connectors are fitted together,
Both of the shield shells of the pair of connectors are connected to the shell main body that covers at least the terminal accommodating portion, the shell main body, and the connector is connected to the connector mounting portion when the connectors are fitted to each other; equipped with a,
The connecting portion sac Chi hand, together provided by a pair of protruding from the shell body, protrudes toward the connector attaching portion, and, wherein said connectors are fitted with each other connector mounting portion and those Provided to produce elastic restoring force so as to be elastically deformed in contact with and press the connector mounting portion ,
The other of the connecting portions is provided so as to protrude from the shell main body, and is provided so as to be fixed with screws to the connector mounting portion.
In a state where the connectors are fitted to each other, the one connection portion is provided so as to come into contact with the connector attachment portion at a position different from a fixed position where the other connection portion is fixed to the connector attachment portion . Shield connector structure characterized by that. The width in the direction intersecting with the direction in which the connecting portion protrudes at the base end portion of the other connecting portion is formed to be equal to the width of the shell body in the intersecting direction. shield connector structure according to 1. The shield connector structure according to claim 2 , wherein the other connecting portion is formed in a trapezoidal shape such that the width gradually decreases toward the tip.

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