JP4856005B2 - Shield connector - Google Patents

Description

  The present invention relates to a shield connector that has a conductive shield shell connected to a shield member that covers an electric wire and grounds noise and the like.

  A wide variety of electronic devices are mounted on a vehicle as a moving body. In the automobile, a wire harness is routed in order to transmit electric power, a control signal, and the like to the electronic device. The wire harness includes a plurality of electric wires and a connector. The electric wire is a so-called covered electric wire including a conductive core wire and an insulating covering portion that covers the core wire.

  The connector includes a terminal fitting and a connector housing. The terminal fitting is made of a conductive sheet metal or the like, and includes a wire connecting portion and an electrical contact portion. The electric wire is electrically and mechanically connected to the electric wire connecting portion. The electrical contact portion is electrically and mechanically connected to an electrical contact portion of a terminal fitting such as a mating connector fitted to the connector or various electronic devices.

  The connector housing is made of an insulating synthetic resin or the like and is formed in a cylindrical shape. The connector housing is provided with a terminal accommodating chamber for accommodating the terminal fitting. The terminal accommodating chamber is a hole (space) extending linearly.

  The electric wire mentioned above may be covered with the braided wire as a shield member, for example, and may be electrically shielded from the outside. The braided wire is formed in a cylindrical shape as a whole, for example, by knitting a strand made of a conductive metal material. The braided wire is fixed to the connector housing by various structures (for example, see Patent Document 1).

  The shield connector described in Patent Document 1 includes the connector housing, the braided wire, a fixing member that fixes the braided wire between the connector housing, and a shield shell that is attached to the connector housing. I have.

  A plurality of protrusions for positioning and locking are provided at the rear end of the connector housing. The fixing member is made of a conductive material and is formed in a substantially U shape. The fixing member is provided with a hole through which a positioning projection of the connector housing is passed. A pair of fixing members are provided, and the pair of fixing members are engaged with each other in a state where the protrusions of the connector housing are passed through the holes described above, and are arranged on the outer periphery of the connector housing. The shield shell is made of a conductive material and is formed in a cylindrical shape. The shield shell is provided with a hole through which a locking projection of the connector housing is passed, and the projection of the connector housing is passed through the hole to hold the connector housing in the shield shell.

  When assembling the shield fixing portion having the above-described configuration, first, a terminal portion of the braided wire is put on the rear end portion of the connector housing, and a pair of fixing members are attached to the portion of the end portion remaining. At this time, the protrusions of the connector housings are inserted into the holes of the respective fixing members, and the pair of fixing members are engaged by interposing a braided wire between the connector housing and the fixing members.

Then, the tip of the braided wire is inverted on the outer surface of the fixing member to form an inverted portion, and the connector housing in this state is inserted into the shield shell. Then, the inversion part and the inner surface of the rear end of the shield shell come into contact with each other, the braided wire comes into contact with the shield shell, and the shield fixing part is assembled.
JP 2004-327100 A

  However, in the shield fixing portion having the above-described configuration, when the braided wire is put on the connector housing, the braided wire may be caught on the projection of the connector housing, so that the workability when the braided wire is put is poor. In addition, the fixing member hole is engaged with the protrusion of the connector housing from above the braided wire, or the pair of fixing members are engaged while holding the braided wire between the fixing members. The nature was bad. In addition, it takes time to form the reversal portion on the braided wire, and the reversal portion bulges outside, making it difficult to insert the reversal portion into the shield shell. Therefore, workability when inserting the connector housing into the shield shell is poor. As described above, there is a tendency that labor is increased in the entire operation of assembling the shield fixing portion.

  Furthermore, since the connector housing made of a synthetic resin serves as a base, the braided wire and the shield shell come into contact with each other, so that there is a possibility that the contactability of the braided wire is lowered when the connector housing shrinks with time.

  Therefore, the objective of this invention is providing the shield fixing | fixed part which can assemble a shield member simply and reliably, and can exhibit favorable shield property over a long period of time.

  In order to solve the above problems and achieve the object, the present invention described in claim 1 includes a conductive shield shell attached to a connector housing and a flexible shield member covering an electric wire led out from the connector housing. And can be elastically deformed so that the diameter expands and contracts, and the shield is interposed between the shield shell and the shield shell by expanding the diameter and passing the shield shell and the shield member inside and then reducing the diameter by an elastic restoring force. A first ring member that holds the member in between, and a second ring member that is overlapped on an outer periphery of the first ring member, and the first ring member is formed so that both ends thereof overlap. In addition, the second ring member has a pair of engaging portions provided at intervals wider than the interval between both ends of the first ring member, and the first ring member A shielded connector and wherein the deforming in the direction of diameter.

  According to a second aspect of the present invention, in the shield fixing portion according to the first aspect, the first ring member includes a main body formed so that both ends overlap each other, and a tip of the both ends. A shield connector including a pair of upright flange portions.

  According to a third aspect of the present invention, in the shield fixing portion according to the second aspect, the pair of engaging portions includes a first groove portion into which one flange portion is inserted, and the other flange portion. It is a shield connector characterized by being comprised from the 2nd groove part inserted.

  According to a fourth aspect of the present invention, in the shield fixing portion according to the third aspect, the inner surface of the first groove portion near the second groove portion is directed toward the insertion direction of the one flange portion. Accordingly, the shield connector is provided with a tapered surface inclined in a direction away from the second groove portion.

  According to a fifth aspect of the present invention, in the shield fixing portion according to the third or fourth aspect, the first groove portion includes the one flange portion inserted into the first groove portion. A shield connector including an elastic arm to be engaged.

  According to a sixth aspect of the present invention, in the shield fixing portion according to any one of the first to fifth aspects, a step portion in which the first ring member is abutted against the shield shell. This is a shield connector characterized in that is provided.

  According to a seventh aspect of the present invention, in the shield fixing portion according to any one of the first to sixth aspects, the first ring member is locked to the shield shell. The shield connector is characterized in that a portion is provided.

  According to the first aspect of the present invention, the conductive shield shell attached to the connector housing, the flexible shield member covering the electric wire led out from the connector housing, and the elastically deformable so as to expand and contract the diameter. A first ring member that is held in a state where the shield member is sandwiched between the shield shell and the shield shell by reducing the diameter by an elastic restoring force after passing through the shield shell and the shield member through the inside. A second ring member that is overlapped on an outer periphery of the ring member, and the first ring member is formed so that both ends thereof overlap, and the second ring member is formed at both ends of the first ring member. Since the first ring member is deformed in the direction of reducing the diameter by having a pair of engaging portions provided at intervals wider than the interval, the shield member has the shield shell and the first ring portion Easily while being temporarily fixed between is securely present fixed by the second ring member.

  According to the second aspect of the present invention, the first ring member includes a main body portion formed so that both end portions overlap each other and a pair of flange portions erected from the tips of the both end portions. Therefore, the diameter of the first ring member is increased by bringing the pair of flange portions closer to each other, and the diameter is reduced by moving the pair of flange portions away from each other.

  According to the third aspect of the present invention, the pair of engaging portions includes a first groove portion into which one flange portion is inserted and a second groove portion into which the other flange portion is inserted. Therefore, by inserting one flange part into the first groove part and the other flange part into the second groove part, the first ring member sandwiching the shield member with the shield shell is further reduced in diameter. Deforms easily in the direction you want.

  According to the fourth aspect of the present invention, the taper surface inclined in the direction away from the second groove portion toward the insertion direction of one flange portion is formed on the inner surface of the first groove portion near the second groove portion. Since one flange portion slides on the tapered surface, the pair of flange portions can be easily inserted into the first groove portion and the second groove portion separated by a distance larger than the interval between the pair of flange portions. Is done.

  According to the fifth aspect of the present invention, since the first groove portion includes the elastic arm that engages with the one flange portion inserted into the first groove portion, the elastic arm is provided with the one flange. When engaged with the portion, one flange portion is displaceable within a certain range in the first groove portion.

  According to the sixth aspect of the present invention, since the step portion on which the first ring member is abutted against the shield shell is provided, the second ring member is attached to the first ring member mounted on the shield shell. The first ring member is not displaced when the is attached.

  According to the seventh aspect of the present invention, since the hole for locking the first ring member is provided in the shield shell, the first ring member is locked to the shield shell.

  As described above, the present invention described in claim 1 is elastically deformable so that the diameter expands and contracts, and after being expanded and passed through the shield shell and the shield member, it is contracted by elastic restoring force. A first ring member that holds the shield member between the shield shell and the second ring member that is deformed in a direction of reducing the diameter of the first ring member that is stacked on the outer periphery of the first ring member. Since the shield member is provided, the shield member is simply temporarily fixed between the shield shell and the first ring member, and securely fixed by the second ring member. Therefore, the shield member can be easily and reliably assembled.

  According to the second aspect of the present invention, since the first ring member includes a pair of flange portions erected from the tips of both ends of the main body portion, the first ring member connects the pair of flange portions to each other. The diameter is increased by being closer, and the diameter is reduced by moving the pair of flange portions away from each other. Therefore, after the first ring member is easily expanded in diameter and disposed on the outer periphery of the shield shell, the diameter can be easily reduced and the shield member can be sandwiched and fixed between the shield shell.

  According to the third aspect of the present invention, the pair of engaging portions includes a first groove portion into which one flange portion is inserted and a second groove portion into which the other flange portion is inserted. Therefore, by inserting one flange portion into the first groove portion and the other flange portion into the second groove portion, the diameter of the first ring member sandwiching the shield member with the shield shell is further reduced. Easily deforms in the direction. Therefore, the shield member can be easily and reliably assembled.

  The present invention described in claim 4 is provided with a tapered surface inclined in a direction away from the second groove portion toward the insertion direction of one flange portion on the inner surface of the first groove portion near the second groove portion. Therefore, one flange portion slides on the tapered surface, and the pair of flange portions are easily inserted into the first groove portion and the second groove portion which are spaced apart from each other. . Therefore, the second ring member can be easily attached to the first ring member, and the shield member can be assembled by easily reducing the diameter of the first ring member.

  According to the fifth aspect of the present invention, since the first groove portion includes an elastic arm that engages with the one flange portion, the one flange portion is displaceable within a certain range within the first groove portion. is there. Therefore, it is possible to improve the durability by absorbing vibration during use, and to exhibit a good shielding property over a long period of time. Furthermore, the shield fixing portion can be easily disassembled simply by disengaging the one flange portion and the elastic arm. Therefore, recycling work can be easily performed, and an environmentally friendly product can be provided.

  In the present invention described in claim 6, since the step portion with which the first ring member is abutted against the shield shell is provided, the second ring member is attached to the first ring member attached to the shield shell. The first ring member is not displaced when mounting. Therefore, the second ring member can be reliably attached to the first ring member, and the shield member can be fixed by reliably reducing the diameter of the first ring member.

  In the present invention described in claim 7, since the hole for locking the first ring member is provided in the shield shell, the first ring member is locked to the shield shell. Therefore, the first ring member can be securely attached without being detached from the shield shell.

  Hereinafter, a shield connector 1 according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, a shield connector 1 according to an embodiment of the present invention includes a terminal fitting 11, a connector housing 2, a shield shell 3, a shield component 4, and a shield ring 5 as a first ring member. And a cover 6 as a second ring member.

  The terminal fitting 11 is made of a conductive metal material or the like, and is formed by bending a sheet metal or the like. The terminal fitting 11 is integrally provided with an electric wire connection part and an electric contact part. An electric wire 13 is attached to the electric wire connecting portion. The electric wire connecting portion is electrically connected to the core wire of the electric wire 13. The terminal of the electric wire 13 is attached to the connector 1 by attaching the electric wire 13 to the electric wire connecting portion. The electrical contact portion is connected to a mating terminal fitting (not shown).

  The connector housing 2 is made of an insulating synthetic resin or the like. The connector housing 2 integrally includes an outer housing 21 having a substantially rectangular tube shape and a cylindrical housing body 22 disposed in the outer housing 21. The housing main body 22 includes a plurality of terminal accommodating chambers 23 for accommodating the terminal fittings 11. The terminal accommodating chamber 23 is a space extending linearly. Both ends of the terminal accommodating chamber 23 are open to the outer surface of the housing body 22. When the terminal fitting 11 is accommodated in the terminal accommodating chamber 23, the electric wire 13 is led out from the connector housing 2.

  The shield shell 3 is attached to the connector housing 2 having the above-described configuration. The shield shell 3 is inserted into the housing body 22.

  The shield shell 3 is made of a conductive material, for example, a metal material. As shown in FIG. 1, the shield shell 3 includes a large-diameter portion 31, a small-diameter portion 32 connected to the large-diameter portion 31, and a step portion 33 and a hole disposed between the large-diameter portion 31 and the small-diameter portion 32. Part 34 (locking part).

  The large-diameter portion 31 and the small-diameter portion 32 are each formed in a cylindrical shape and are arranged coaxially, that is, in series. The large-diameter portion 31 is disposed near the connector housing 2 to which the shield shell 3 is attached. The small diameter portion 32 is disposed on the side away from the connector housing 2. The inner diameter of the large diameter portion 31 is larger than the inner diameter of the small diameter portion 32, and the outer diameter of the large diameter portion 31 is larger than the outer diameter of the small diameter portion 32. The inner diameter of the large-diameter portion 31 is provided to be slightly smaller than the inner diameter of the housing body 22 of the connector housing 2. The outer diameter of the small diameter portion 32 is provided so as to be larger than the inner diameter (the inner diameter on the right side in FIG. 1) of a braided wire 41 described later of the shield component 4.

  The step portion 33 is an annular wall that connects the outer wall of the large-diameter portion 31 and the outer wall of the small-diameter portion 32, and is provided so as to be orthogonal to the respective outer walls. The height of the stepped portion 33 is provided so as to be substantially equal to the sum of the thickness of the braided wire 41 and the thickness of a cylindrical portion 61 described later of the cover 6. When the shield ring 5 and the cover 6 are attached to the shield shell 3, the end portions of the shield ring 5 and the cover 6 are abutted against the stepped portion 33.

  The hole 34 is provided in the vicinity of the stepped portion 33 as shown in FIG. The hole 34 is provided in a concave shape from the outer periphery of the large diameter portion 31. The planar shape of the hole 34 is substantially L-shaped. When the shield ring 5 is attached to the shield shell 3, an orthogonal portion 53b of the other flange portion 53 (to be described later) of the shield ring 5 and a parallel portion 53a on the side connected to the orthogonal portion 53b are inserted into the hole portion 34. .

  The large-diameter portion 31 of the shield shell 3 configured as described above is inserted into the connector housing 2. Further, the end of the braided wire 41 is covered on the outer periphery of the small diameter portion 32 having the above-described configuration. At this time, as shown in FIG. 8, the length of the braided wire 41 covered on the shield shell 3 is always kept constant by covering the braided wire 41 so that the tip of the end portion is in contact with the stepped portion 33. . As described later, when the cover 6 is attached to the outer periphery of the small diameter portion 32 covered with the braided wire 41, the outer periphery of the large diameter portion 31 and the outer periphery of the cylindrical portion 61 of the cover 6 are substantially flush.

  The shield component 4 has flexibility and is formed in a cylindrical shape. The shield component 4 includes a braided wire 41 and an outer sheath (not shown). The braided wire 41 has flexibility such that a strand made of a conductive metal material or the like is knitted, and is formed in a tubular shape (bag shape) as a whole.

  The outer sheath is made of an insulating synthetic resin or the like, and is formed in a cylindrical shape (bag shape). The outer sheath covers the braided wire 41. At the end of the shield component 4, the outer sheath is removed and the braided wire 41 is exposed.

  The braided wire 41 of the shield component 4 having the above-described configuration covers the electric wire 13 through the electric wire 13 described above. The braided wire 41 electrically shields the electric wire 13 from the outside of the braided wire 41. In other words, the braided wire 41 restricts the electric noise from being emitted from the electric wire 13 to the outside of the braided wire 41 and restricts the electric noise outside the braided wire 41 from entering the electric wire 13. .

  The shield ring 5 is made of a conductive metal material or the like, and is formed in a ring shape by bending a belt-like sheet metal or the like as shown in FIG. The shield ring 5 is arranged on the outer periphery of the shield shell 3, and fixes the braided wire 41 between the shield shell 3 and the shield ring 5. The shield ring 5 includes a main body portion 51 and a pair of flange portions 52 and 53.

  The main body 51 is formed in a ring shape so that both end portions 51a and 51b (one end portion 51a and the other end portion 51b) overlap. The main body 51 is disposed on the outer periphery of the small diameter portion 32 of the shield shell 3, and the shield ring 5 is attached to the shield shell 3. The braided wire 41 is sandwiched and held between the main body 51 and the small diameter portion 32. The width on the one end 51 a side of the main body 51 is provided narrower than the width on the other end 51 b side of the main body 51. The width of the main body 51 on the other end 51 b side is provided to be substantially equal to the width of the small diameter portion 32 of the shield shell 3.

  Further, the inner diameter of the main body 51 is provided so as to be smaller than the outer diameter of the braided wire 41 covered on the small diameter portion 32 of the shield shell 3 in the initial state where the shield ring 5 is not subjected to external force (FIG. 2). ing. Further, the inner diameter of the main body 51 is covered with the small-diameter portion 32 of the shield shell 3 in a state (FIGS. 3 and 6) in which the shield ring 5 is elastically deformed and expanded (the inner and outer diameters are expanded) as will be described later. It is provided so as to be larger than the outer diameter of the formed braided wire 41.

  The pair of flange portions 52, 52 are erected from the tips of both end portions 51 a, 51 b of the main body portion 51 toward the outside of the shield ring 5. One flange 52 is erected from the tip of one end 51 a of the main body 51. One flange portion 52 includes a parallel portion 52a parallel to the width direction of the one end portion 51a and an orthogonal portion 52b orthogonal to the parallel portion 52a, and is formed in an L-shaped cross section. The orthogonal part 52 b is provided continuously to the end of the parallel part 52 a on the side facing the cover 6. When the cover 6 is attached to the shield ring 5, the one flange portion 52 is inserted into a first groove portion 62 described later of the cover 6.

  The other flange portion 53 is erected from the tip of the other end portion 51 b of the main body portion 51. The other flange portion 53 includes a parallel portion 53a parallel to the width direction of the other end portion 51b and an orthogonal portion 53b orthogonal to the parallel portion 53a, and is formed in an L-shaped cross section.

  A pair of parallel portions 53a is provided. The interval between the pair of parallel portions 53a is provided approximately equal to the width of the one end portion 51a of the main body 51, and the pair of parallel portions 53a positions the one end 51a of the main body 51 between each other. The orthogonal part 53b is connected to the parallel part 53a on the side facing the shield shell 3 of the pair of parallel parts 53a, and is connected to the end of the parallel part 53a on the side facing the shield shell 3.

  When the shield ring 5 is attached to the shield shell 3, the orthogonal part 53 b and the parallel part 53 a on the side connected to the orthogonal part 53 b are inserted into the hole 34 of the shield shell 3, and the shield ring 5 is connected to the shield shell 3. Are positioned and locked against. When the cover 6 is attached to the shield ring 5, the pair of parallel portions 53 a are inserted into a second groove portion 63 described later of the cover 6.

  The shield ring 5 having the above-described configuration can be elastically deformed so that the diameter is expanded or contracted (expanded or contracted). As shown in FIGS. 3 and 6, for example, when the pair of flange portions 52 and 53 are brought close to each other by an operator pinching with fingers or the like, both end portions 51 a and 51 b of the main body portion 51 are separated from each other in the direction away from each other. The outer surface slides and elastically deforms in the direction in which the main body 51 expands in diameter. At this time, as described above, the inner diameter of the main body 51 is larger than the outer diameter of the braided wire 41 that covers the small-diameter portion 32 of the shield shell 3. Then, the small diameter portion 32 and the braided wire 41 of the shield shell 3 are passed through the main body portion 51.

  When the operator separates the pair of flange portions 52 and 53 from each other by releasing their fingers from the state described above, the both end portions 51a and 51b of the main body portion 51 slide on each other's outer surface in a direction approaching each other. The body 51 is elastically restored in the direction of reducing the diameter (inner and outer diameters are reduced). Since the inner diameter of the main body 51 in the initial state (FIG. 2) described above is smaller than the outer diameter of the braided wire 41 covering the small diameter portion 32 of the shield shell 3, the shield ring 5 is elastically restored as shown in FIG. The braided wire 41 is sandwiched and held between the shield shell 3 by reducing the diameter by force. And since both the shield ring 5 and the shield shell 3 are comprised from the electroconductive metal material etc., the braided wire 41 is pinched | interposed reliably between each other, and it fixes.

  The cover 6 is made of an insulating synthetic resin or the like. The cover 6 is overlaid on the outer periphery of the shield ring 5. As shown in FIG. 4, the cover 6 includes a cylindrical portion 61, an engaging portion 64, and a second groove portion 63.

  The cylinder part 61 is formed in a ring shape. The inner diameter of the cylindrical portion 61 is provided to be slightly larger than the outer diameter of the main body portion 51 of the shield ring 5. The width of the cylindrical portion 61 is provided so as to be substantially equal to the width on the other end portion 51 b side (wide side) of the main body portion 51 of the shield ring 5. When the cover 6 is disposed on the outer periphery of the shield ring 5 and attached to the shield ring 5, the cylindrical portion 61 is disposed on the outer periphery of the main body portion 51 of the shield ring 5.

  As shown in FIG. 4, the engaging portion 64 includes a notch portion 65, an elastic arm 66, a first groove portion 62, and a tapered surface 62a. The notch 65 is formed by cutting the cylinder 61 from the end of the cylinder 61 facing the shield ring 5 toward the axial center of the cover 6.

  The elastic arm 66 is provided so as to be accommodated in the notch 65. The elastic arm 66 includes an arm main body 66a connected to the base end portion of the notch portion 65, and a lock protrusion 66b provided at the distal end portion of the arm main body 66a.

  The arm main body 66a is formed in a substantially L shape in plan view. The arm body 66 a is connected to the proximal end portion of the notch 65 near the second groove 63 and extends in the axial direction of the cover 6. The arm main body 66 a is elastically deformable in a direction approaching the second groove 63.

  The lock protrusion 66b is provided to protrude from the outer surface of the arm body 66a in a direction away from the second groove 63. The lock protrusion 66 b engages with one flange portion 52 of the shield ring 5. The lock protrusion 66b includes a tapered surface that is inclined in a direction away from the second groove 63 as it goes toward the tip of the arm body 66a.

  When the lock projection 66 b having the above-described configuration is engaged with the one flange portion 52, the elastic arm 66 is engaged with the one flange portion 52. Even when the cover 6 is pulled in the axial direction of the cover 6 with the elastic arm 66 engaged with the one flange portion 52, the lock projection 66b and the orthogonal portion 52b of the one flange portion 52 come into contact with each other, and the cover 6 is The shield ring 5 will not fall out. At this time, even if the cover 6 is further pushed in the axial direction of the cover 6, it abuts against the stepped portion 33, so that the cover 6 is mounted in a state of being locked in the front-rear direction.

  Further, when the cover 6 is rotated in the outer peripheral direction of the cover 6 in a state where the elastic arm 66 is engaged with the one flange portion 52, the arm main body 66a approaches the second groove portion 63 as shown in FIG. The cover 6 is elastically deformed in the direction and can be displaced within a certain range.

  As shown in FIG. 4 and the like, the first groove portion 62 is formed between the inner surface of the notch portion 65 away from the second groove portion 63 and the elastic arm 66. One flange portion 52 of the shield ring 5 is inserted into the first groove portion 62.

  The tapered surface 62 a is provided on the base end portion of the elastic arm 66 near the first groove portion 62 (that is, the inner surface of the first groove portion 62 near the second groove portion 63). The taper surface 62a is inclined in a direction away from the second groove portion 63 toward the tip end portion of the elastic arm 66 (that is, the insertion direction of one flange portion 52 of the shield ring 5 into the first groove portion 62). Yes. The orthogonal part 52 b of the one flange part 52 slides on the tapered surface 62 a, and the one flange part 52 is inserted into the first groove part 62.

  The second groove portion 63 is formed in a notch shape, and as shown in FIG. 4, the cylindrical portion 61 is cut from the end portion of the cylindrical portion 61 facing the shield ring 5 toward the axial direction of the cover 6. It is lacking. The width of the second groove portion 63 is provided so as to be substantially equal to the thickness of the pair of parallel portions 53a of the other flange portion 53 of the shield ring 5, and the length of the second groove portion 63 is the length of the pair of parallel portions 53a. It is provided so as to be substantially equal to the interval. When the cover 6 is attached to the shield ring 5, the pair of parallel portions 53 a of the other flange portion 53 is inserted into the second groove portion 63.

  The distance between the first groove portion 62 and the second groove portion 63 configured as described above is such that the pair of flange portions 52 and 53 of the shield ring 5 in a state in which the braided wire 41 is sandwiched between the shield shell 3 and elastically restored. It is provided so as to be wider than the interval. When the cover 6 is attached to the outer periphery of the shield ring 5 in the state described above, the pair of flange portions 52 and 53 are inserted into the first groove portion 62 and the second groove portion 63 and separated from each other, and the shield ring 5 is contracted. Deformed in the radial direction. Then, the shield ring 5 is tightened, and the shield ring 5 is firmly fixed with the braided wire 41 sandwiched between the shield ring 5 and the shield shell 3.

  In the shield connector 1 having the above-described configuration, the braided wire 41 is put on the outer periphery of the shield shell 3 (FIG. 6), and the braided wire 41 and the shield shell 3 are passed through the shield ring 5 which is elastically deformed. Is temporarily restored with the braided wire 41 sandwiched between the shield shell 3 and the shield ring 5 (FIG. 7). Then, the cover 6 is attached to the outer periphery of the shield ring 5, the shield ring 5 is tightened to fix the braided wire 41 (FIG. 14), the electric wire 13 is passed through the braided wire 41 (FIG. 16), and the shield shell 3 is attached to the connector housing 2 (FIG. 17). Thus, the shield connector 1 fixes the braided wire 41 between the shield shell 3 and the shield ring 5 by bringing the shield shell 3, the braided wire 41 and the shield ring 5 into close contact. Hereinafter, a method for assembling the shield connector 1 will be described in detail.

  First, the end of the braided wire 41 is widened as shown in FIG. 5, and the end is covered with the outer periphery of the small diameter portion 32 of the shield shell 3 as shown in FIG. 6. At this time, the tip of the end is in contact with the step 33 of the shield shell 3.

  Next, as shown in FIG. 7, the shield ring 5 is attached to the shield shell 3 covered with the braided wire 41. The operator pinches the pair of flange portions 52 and 53 of the shield ring 5 with fingers and elastically deforms the shield ring 5 so as to expand the diameter of the main body 51 by bringing them close to each other. The braided wire 41 covered on the part 32 is passed.

  And the orthogonal part 53b of the other flange part 53 of the shield ring 5 and the parallel part 53a on the side connected to the orthogonal part 53b are positioned above the hole 34 of the shield shell 3 (the front side in FIG. 8), As shown in FIG. 8, it inserts into the hole 34 from this upper side. Thereafter, the operator releases the finger and moves the pair of flange portions 52 and 53 away from each other to elastically restore the shield ring 5 to reduce the diameter of the main body 51, and the shield ring 5, the braided wire 41, and the shield shell are elastically restored. 3, and the braided wire 41 is temporarily fixed between the shield ring 5 and the shield shell 3.

  Then, the cover 6 is attached to the outer periphery of the shield ring 5. As shown in FIG. 9, the cover 6 is brought closer to the shield ring 5. At this time, it is conceivable that the shield ring 5 is displaced toward the large-diameter portion 31 side of the shield shell 3 and it is difficult to attach the cover 6, but the shield ring 5 is abutted against the step portion 33 of the shield shell 3 and is not displaced. Absent. Then, the pair of parallel portions 53 a of the other flange portion 53 of the shield ring 5 is inserted into the second groove portion 63 of the cover 6.

  At the same time, the tip of the orthogonal portion 52b of one flange portion 52 is brought into contact with the tapered surface 62a of the first groove portion 62 and slid on the tapered surface 62a (FIG. 11). It inserts in the 1st groove part 62, making the space | interval with the flange part 53 gradually wide (FIG. 12). Then, the orthogonal portion 52b is brought into contact with the lock projection 66b of the elastic arm 66, and the one flange portion 52 and the elastic arm 66 are engaged (FIG. 13).

  As shown in FIG. 14, when the cover 6 is attached to the shield ring 5, the shield ring 5 is held with a smaller inner diameter, and the shield ring 5, the braided wire 41, and the shield shell 3 are more firmly adhered to each other. The braided wire 41 is permanently fixed between the shield ring 5 and the shield shell 3. Then, the electric wire 13 is passed through the braided wire 41 as shown in FIG. 16, the large diameter portion 31 of the shield shell 3 is inserted into the connector housing 2 of the connector 1, and the shield connector 1 is attached as shown in FIG. Assembled.

  Further, when disassembling the assembled shield connector 1, first, an operator pulls the connector housing 2 and the cover 6 apart and removes the shield shell 3 from the connector housing 2. Next, the engagement between the one flange portion 52 of the shield ring 5 and the elastic arm 66 of the cover 6 is released, and the cover 6 is removed from the shield ring 5. Then, the braided wire 41 is removed from the shield shell 3 after the pair of flange portions 52, 53 of the shield ring 5 are brought closer to enlarge the diameter of the main body 51 to remove the shield ring 5. As described above, the shield connector 1 is easily disassembled.

  According to the present embodiment, the shield shell 3 can be elastically deformed so that the diameter is expanded and contracted, and the diameter of the shield shell 3 is reduced by an elastic restoring force after passing through the shield shell 3 and the braided wire 41 inside. The braided wire 41 includes a shield ring 5 that holds the braided wire 41 and a cover 6 that deforms the shield ring 5 stacked on the outer periphery of the shield ring 5 in the direction of reducing the diameter. 3 and the shield ring 5 are simply temporarily fixed and securely fixed by the cover 6. Therefore, the braided wire 41 can be assembled easily and reliably.

  Since the shield ring 5 includes a pair of flange portions 52 and 53 erected from the ends of both end portions 51a and 51b of the main body 51, the shield ring 5 has a diameter increased by bringing the pair of flange portions 52 and 53 closer to each other. The pair of flange portions 52 and 53 are reduced in diameter by moving away from each other. Therefore, after the shield ring 5 is easily expanded and disposed on the outer periphery of the shield shell 3, the diameter can be easily reduced and the braided wire 41 can be sandwiched and fixed between the shield shell 3.

  Since the first groove portion 62 into which the one flange portion 52 is inserted and the second groove portion 63 into which the other flange portion 53 is inserted, the one flange portion 52 is inserted into the first groove portion 62. However, by inserting the other flange portion 53 into the second groove portion 63, the shield ring 5 with the braided wire 41 sandwiched between the shield shell 3 and the shield ring 5 is easily deformed in the direction of further reducing the diameter. Therefore, the braided wire 41 can be assembled easily and reliably.

  Since the taper surface 62a which inclines in the direction away from the 2nd groove part 63 is provided in the inner surface near the 2nd groove part 63 of the 1st groove part 62 toward the insertion direction of one flange part 52, The flange portion 52 slides on the tapered surface 62 a, and the pair of flange portions 52, 53 is easily formed into the first groove portion 62 and the second groove portion 63 that are spaced apart from each other between the pair of flange portions 52, 53. Inserted into. Accordingly, the cover 6 can be easily attached to the shield ring 5, and the braided wire 41 can be assembled by simply reducing the diameter of the shield ring 5.

  Since the first groove portion 62 includes the elastic arm 66 that engages with the one flange portion 52, the one flange portion 52 can be displaced within a certain range within the first groove portion 62. Therefore, it is possible to improve the durability by absorbing vibration during use, and to exhibit a good shielding property over a long period of time. Furthermore, the shield connector 1 can be easily disassembled simply by disengaging the one flange portion 52 and the elastic arm 66. Therefore, recycling work can be easily performed, and an environmentally friendly product can be provided.

  Since the step portion 33 against which the shield ring 5 is abutted against the shield shell 3 is provided, the shield ring 5 is not displaced when the cover 6 is attached to the shield ring 5 attached to the shield shell 3. Therefore, the cover 6 can be securely attached to the shield ring 5, and the braided wire 41 can be fixed by reliably reducing the diameter of the shield ring 5.

  Since the hole 34 for locking the shield ring 5 is provided in the shield shell 3, the shield ring 5 is locked to the shield shell 3. Therefore, the shield ring 5 can be securely attached without being detached from the shield shell 3.

  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 perspective view which shows the shield connector concerning one Embodiment of this invention. (A) It is a perspective view which expands and shows the shield ring shown by FIG. (B) It is a side view of Fig.2 (a). (A) It is a perspective view which shows the state which elastically deformed the shield ring shown by FIG. (B) It is a side view of Fig.3 (a). It is a perspective view which expands and shows the cover shown by FIG. It is a perspective view which shows the state just before putting a braided wire on the shield shell shown by FIG. FIG. 6 is a perspective view showing a state in which a shield ring elastically deformed is passed through a shield shell covered with the braided wire shown in FIG. 5. FIG. 7 is a perspective view showing a state in which a shield ring is arranged on the outer periphery of the shield shell shown in FIG. 6. It is a top view which expands and shows the principal part of FIG. FIG. 8 is a perspective view illustrating a state where a cover is being attached to the shield ring illustrated in FIG. 7. It is a side view which expands and shows the one flange part and 1st groove part which were shown by FIG. It is a side view which shows the state which one flange part shown by FIG. 10 is sliding on a taper surface. FIG. 12 is a side view showing a state where one flange portion shown in FIG. 11 is engaging with an elastic arm. It is a side view which shows the state which one flange part shown by FIG. 12 engaged with the elastic arm. FIG. 10 is a perspective view illustrating a state where a cover is attached to the shield ring illustrated in FIG. 9. (A) It is a side view which shows the state which the cover displaced to one direction with respect to the shield ring shown by FIG. (B) It is a side view which shows the state which the cover displaced to the other direction with respect to the shield ring shown by FIG. It is a perspective view which shows the state by which the electric wire was passed through the inside of the braided wire shown by FIG. FIG. 17 is a perspective view showing a state in which the shield ring shown in FIG. 16 is attached to the connector housing.

Explanation of symbols

1 Shield Connector 2 Connector Housing 3 Shield Shell 5 Shield Ring (First Ring Member)
6 Cover (second ring member)
13 Electric wire 33 Step part 34 Hole part (locking part)
41 Braided wire (shield member)
51 Body 51a One end (both ends)
51b The other end (both ends)
52 One flange part (engagement part)
53 The other flange part (engagement part)
62 1st groove part 62a Tapered surface 63 2nd groove part 66 Elastic arm

Claims (7)

A conductive shield shell attached to the connector housing;
A flexible shield member for covering the electric wire led out from the connector housing;
The shield member is elastically deformable so that the diameter is expanded and contracted, and the shield member is expanded between the shield shell and the shield shell by reducing the diameter by elastic restoring force after passing through the shield shell and the shield member inside. A first ring member sandwiched and held;
A second ring member overlaid on the outer periphery of the first ring member,
The first ring member is formed so that both ends overlap,
The second ring member has a pair of engaging portions provided at a wider interval than the interval between both end portions of the first ring member, and deforms the first ring member in a direction of reducing the diameter. Shield connector characterized by that.   2. The shield according to claim 1, wherein the first ring member includes a main body portion formed so that both end portions overlap each other and a pair of flange portions erected from the tips of the both end portions. connector.   The pair of engaging portions are configured by a first groove portion into which one flange portion is inserted and a second groove portion into which the other flange portion is inserted. Shield connector.   The inner surface of the first groove portion near the second groove portion is provided with a tapered surface that is inclined in a direction away from the second groove portion toward the insertion direction of the one flange portion. The shield connector according to claim 3.   The shield connector according to claim 3 or 4, wherein the first groove portion includes an elastic arm that engages with the one flange portion inserted into the first groove portion.   The shield connector according to any one of claims 1 to 5, wherein a step portion against which the first ring member is abutted is provided on the shield shell.   The shield connector according to any one of claims 1 to 6, wherein the shield shell is provided with a locking portion for locking the first ring member.

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