JP7399793B2 - shield connector - Google Patents

Description

The present invention relates to a shielded connector.

The shield connector includes a power supply wire, a conductive shield shell, and a conductive braided body, and the power supply wire is accommodated inside the braided body. The shield connector exhibits a desired shielding function by electrically connecting the shield shell and the braided body, and the shielding function allows noise generated from the power supply wire to be removed from the outside of the shield shell and the braided body. leakage to the outside can be suppressed (for example, see Patent Document 1).

Japanese Patent Application Publication No. 2018-55800

However, if the metal forming the shield shell is different from the metal plating the braided body, and if a solution such as water is splashed on the part where the shield shell and the braided body are in contact, the shield shell and the braided body may Galvanic corrosion may occur on the body. If galvanic corrosion occurs, it may affect the electrical connection between the shield shell and the braided body.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a shielded connector that can suppress the occurrence of galvanic corrosion.

In order to solve the above problems, a shield connector according to the present invention is formed into a cylindrical shape by an electric wire having a terminal at one end, an insulating housing that holds the terminal, and a conductive metal, A shield shell that accommodates a part of the housing inside, and a metal that is formed in a cylindrical shape and accommodates a part of the electric wire inside, and is placed outside the shield shell and forms the shield shell. A conductive braided body plated with different metals, a conductive resin member containing a conductive material and formed into a cylindrical shape from an insulating synthetic resin, and provided on the braided body, and the shield shell. a fixing member that fixes the braided body to the shield shell in a non-contact state, and when the braided body is fixed to the shield shell by the fixing member, the shield is fixed to the shield shell through the conductive resin member. It is characterized in that the shell and the braided body are electrically connected.

Further, in the above-mentioned shield connector, it is preferable that the conductive resin member includes a folded part that surrounds the entire circumference of one end in the axial direction of the braided body.

Moreover, in the above-mentioned shield connector, it is preferable that the conductive material is a conductive carbon-based material.

Since the shield connector according to the present invention has the above configuration, it is possible to provide a shield connector that can suppress occurrence of galvanic corrosion.

FIG. 1 is a perspective view of a shield connector according to this embodiment. FIG. 2 is a sectional view of the shield connector according to this embodiment. FIG. 3 is an enlarged cross-sectional view of the main parts of the shield connector according to the present embodiment. FIG. 4 is an exploded perspective view of the first subassembly in the shield connector according to this embodiment. FIG. 5 is an exploded perspective view of the second subassembly in the shield connector according to this embodiment.

EMBODIMENT OF THE INVENTION Below, embodiment of the shield connector based on this invention is described based on drawing. Note that the present invention is not limited to this embodiment.

[Embodiment]
FIG. 1 is a perspective view of a shield connector 100 according to this embodiment. FIG. 2 is a cross-sectional view of the shield connector 100 according to this embodiment. FIG. 3 is an enlarged sectional view of a main part of the shield connector 100 according to this embodiment. FIG. 4 is an exploded perspective view of the first subassembly 101 in the shield connector 100 according to this embodiment. FIG. 5 is an exploded perspective view of the second subassembly 102 in the shield connector 100 according to this embodiment.

As shown in FIGS. 1 to 5, the X direction is the axial direction of the shield connector 100 in this embodiment. The Y direction is a first orthogonal direction of the shield connector 100 that is orthogonal to the axial direction X. The Z direction is a second orthogonal direction of the shield connector 100 that is orthogonal to each of the axial direction X and the first orthogonal direction Y. In the axial direction X in this specification, the counterpart device 19 side may be referred to as the front side, and the opposite side may be referred to as the rear side.

The shield connector 100 according to the present embodiment is applied to, for example, a wire harness WH used in a vehicle such as an automobile. For example, the wire harness WH bundles a plurality of electric wires W1 used for power supply, etc. to connect each electric device mounted on a vehicle to form a collective part, and connects each electric wire W1 to each other using a shield connector 100 or the like. It is designed to be connected to electrical equipment. As shown in FIG. 1, the wire harness WH includes a shield connector 100 including a plurality of electrically conductive wires W1. In addition to this, the wire harness WH may further include a grommet, a protector, an exterior material, a fixture, and the like. The shield connector 100 according to the present embodiment is used, for example, in a wire harness WH having a power supply wire W1 for supplying power from an inverter to a motor in a vehicle such as a hybrid vehicle or an electric vehicle.

The shield connector 100 is used, for example, as a connection mechanism for electrical wire-to-electric device connection that electrically connects a plurality of electric wires W1 and a counterpart device 19.

As shown in FIGS. 1 to 5, the shield connector 100 according to the present embodiment includes a plurality of electric wires W1 (including terminals 11, 12, and 13), a housing 2 (housing main body 20, front holder 2FH, and (including a rear holder 2RH), a packing P, a rubber stopper G, a spacer 3, a shield shell 4, a conductive resin member 5, a braided body 6, and a fixing member 7. In the shield connector 100 according to the present embodiment, for example, after assembling the first subassembly 101 shown in FIG. 4 and then assembling the second subassembly 102 shown in FIG. Assembly 102 is assembled to form shielded connector 100. Therefore, the first subassembly 101 will be explained first. The first subassembly 101 includes an electric wire W1, a housing 2, a rubber plug G, and a packing P. The electric wire W1, the housing 2, the rubber plug G, and the packing P will be explained below.

A terminal W2 is provided at one end of each electric wire W1. The illustrated terminal W2 is a male terminal. By fitting the shield connector 100 with the counterpart device 19, it is possible to electrically connect the terminal W2 and the counterpart terminal, which is a female terminal housed inside the counterpart device 19.

The shield connector 100 according to this embodiment includes a plurality of electric wires W1. More specifically, the shield connector 100 includes, for example, three electric wires W1. Each electric wire W1 has a terminal W2. Therefore, the shield connector 100 has three terminals W2. Note that the three electric wires W1 of the shield connector 100 according to this embodiment have the same configuration. Therefore, one of the three electric wires W1, the first electric wire W11, will be described below, and the description of the second electric wire W12 and the third electric wire W13, which are the remaining two electric wires W1, will be omitted. Similarly, the three terminals W2 of the shield connector 100 according to this embodiment have the same configuration. Therefore, one of the three terminals W2, the first terminal W21, will be described below, and a description of the remaining two terminals W2, the second terminal W22 and the third terminal W23, will be omitted.

The first terminal W21 shown in FIG. 2 is formed in a flat plate shape from a conductive metal such as copper, and is electrically connected to the terminal of the first core wire W11a of the first electric wire W11. The first terminal W21 extends along the axial direction X and can be electrically connected to a counterpart terminal (not shown) of the counterpart device 19.

The first electric wire W11 has a first core wire W11a made of a conductive material and an insulating first covering portion W11b that covers the circumferential surface of the first core wire W11a. At the end of the first electric wire W11, the first covering portion W11b is removed to expose the first core wire W11a, and the first terminal W21 is connected to the exposed location of the first core wire 11a.

The first terminal W21 has a terminal connecting portion W21a located on the front side to which a mating terminal (female terminal) (not shown) of the mating device 19 (see FIG. 1) is connected, and a terminal connecting portion W21a located on the rear side and connected to the first electric wire W11. and a wire connection portion W21b to which the terminal of the first core wire W11a is connected. The first terminal W21 has a terminal engagement hole that penetrates the wire connection portion W21b in the first orthogonal direction Y, and a wire engagement claw that projects from the wire connection portion W21b to one side in the first orthogonal direction Y. After inserting the rubber stopper G into the electric wire W1, the operator connects the terminal W2 and the electric wire W1.

The housing 2 holds the terminal W2 and is made of insulating synthetic resin and has a predetermined shape. The housing 2 of this embodiment holds three terminals W2. The housing 2 includes a housing main body 20, a rear holder 2RH, and a front holder 2FH. The housing main body part 20 has a housing cylindrical part 21 and a housing protrusion part 22, and the housing cylindrical part 21 and the housing protrusion part 22 are integrally formed. On the other hand, the rear holder 2RH and the front holder 2FH are formed separately from the housing body 20.

The housing cylindrical portion 21 has a cylindrical portion space 21S that accommodates a portion of the electric wire W1 therein, and is formed into a substantially elongated cylindrical shape along the axial direction X by the housing peripheral wall 21a. That is, the housing cylindrical portion 21 is formed into a substantially elongated cylindrical shape along the axis XL.

The housing cylindrical portion 21 has a housing through hole 21b located on the rear side and passing through the housing peripheral wall 21a in the first orthogonal direction Y. Further, the housing cylindrical portion 21 has a housing claw portion 21c located on the rear side and protruding outward from the outer peripheral surface of the housing peripheral wall 21a. Further, the housing cylindrical portion 21 has a terminal accommodating portion 23 located on the front side and accommodating the terminal W2 therein. The housing cylindrical part 21 of this embodiment has three terminal accommodating parts 23. The three terminal accommodating parts 23 of the shield connector 100 according to this embodiment have the same configuration. Therefore, the first terminal accommodating part 23a, which is one of the three terminal accommodating parts 23, will be explained below, and the second terminal accommodating part 23b, which is the remaining two terminal accommodating parts 23, and the third terminal accommodating part 23a will be explained below. A description of the accommodating portion 23c will be omitted.

The first terminal accommodating portion 23a has a hood portion 24 that protrudes from the housing cylindrical portion 21 toward the front side in the axial direction X and covers the wire connection portion W21b of the first terminal W21. The hood portion 24 includes a hood wall portion 241a that covers one surface of the first terminal W21 in the second orthogonal direction Z, and a pair of hood side wall portions 241b that covers both side portions of the first terminal W21 in the first orthogonal direction Y. , 241c.

The first terminal accommodating portion 23a further includes a first housing claw portion 23d and a terminal engaging recess 23e for positioning the first terminal W21, and a second housing claw portion 23f for positioning the front holder 2FH. The first housing claw portion 23d has a base end located on the hood wall portion 241a located on one side in the second orthogonal direction Z, and a distal end extending from the hood wall portion 241a toward the other side in the second orthogonal direction Z. stand out. The terminal engagement recess 23e includes, for example, a first plate portion having a plane orthogonal to the axial direction X, a second plate portion having a plane orthogonal to the first orthogonal direction Y, and a plane orthogonal to the second orthogonal direction Z. and a third plate portion having a. The terminal engaging recess 23e is located on the front side of one of the pair of hood side walls 241b and 241c (for example, the side wall 241c).

The first housing claw portion 23d engages with the terminal engagement hole 211, while the terminal engagement recess 23e engages with the terminal engagement claw portion 212, so that the housing 2 holds the first terminal W21. At the same time, the positions of the first terminal W21 relative to the housing 2 in the axial direction X, the first orthogonal direction Y, and the second orthogonal direction Z are determined.

The housing protrusion 22 is formed to protrude radially outward from the central portion of the housing cylindrical portion 21 in the axial direction X, and is formed in an annular shape along the axial direction X as a whole. As shown in FIG. 2, the housing protrusion 22 has a packing accommodation space 22S between it and the housing cylindrical part 21, and the packing rear part P3 of the packing P is inserted into the packing accommodation space 22S. Ru.

As shown in FIG. 4, housing ribs 25 connecting the housing cylindrical portion 21 and the housing protrusion 22 are provided at intervals in the circumferential direction R between the housing cylindrical portion 21 and the housing protrusion 22. It has been placed.

The front holder 2FH shown in FIGS. 1 and 2 prevents the terminal W2 held by the housing body 20 from falling off from the housing body 20. The front holder 2FH includes, for example, a holder main body portion FH1, three entry protrusions FH2, and three elastic deformation portions FH4, which are integrally formed.

The holder main body FH1 has a holder space FH1S therein, and is formed into a substantially elongated cylindrical shape along the axial direction X by the holder peripheral wall FH1a. The holder peripheral wall FH1a is located on the front side and includes a back wall F10 and a front wall F11 that face each other in the second orthogonal direction Z. The back wall F10 is formed to have a wide width corresponding to the entire three terminal accommodating portions 23. On the other hand, the front wall F11 is formed into a narrow plate shape corresponding to each of the three terminal accommodating portions 23. When the shield connector 100 is assembled, the wire connection portion W21b of the terminal 1W is accommodated in the holder space FH1S. Further, the holder body portion FH1 has a notch FH1b on the inner circumferential surface at the rear end (see FIG. 2).

The three entry protrusions FH2 of the front holder 2FH of this embodiment have the same configuration. For this reason, we will explain the approach protrusion FH2 located at the center of the first orthogonal direction Y among the three approach protrusions FH2, and explain the approach protrusion FH2 located on both sides of the first orthogonal direction Y in the approach protrusion FH2. The explanation will be omitted.

The entry protrusion FH2 shown in FIG. 2 projects rearward from the holder body part FH1 and enters the terminal accommodating part 23. The entry protrusion FH2 has a holder through hole FH3 that passes through the entry protrusion FH2 in the second orthogonal direction Z. The second housing claw portion 23f of the housing body portion 20 can be inserted into the holder through hole FH3.

The three elastic deformation parts FH4 of the front holder 2FH of this embodiment have the same configuration. For this reason, among the three elastic deformation parts FH4, the elastic deformation part FH4 located at the center in the first orthogonal direction Y will be explained, and the two elastic deformation parts located on both sides of the first orthogonal direction Y in the elastic deformation part FH4 will be explained. A description of FH4 will be omitted.

The elastically deformable portion FH4 has a holder tip portion FH5 that protrudes radially inward from the inner peripheral surface of the holder main body portion FH1, and is formed to be elastically deformable. Each elastic deformation portion F4 is inclined with respect to the axial direction X and the second orthogonal direction Z so as to gradually move away from the holder main body portion FH1 toward the tip. The holder tip FH5 of the elastically deformable portion FH4 can be inserted into the terminal engagement hole 211 of the first terminal W21.

The rear holder 2RH is assembled to the housing body 20 and holds the plurality of electric wires W1. The rear holder 2RH has, for example, a first rear part RH1 and a second rear part RH2, and can be divided into two parts in the second orthogonal direction Z, and is divided into the first rear part RH1 and the second rear part RH2. It is configured such that a plurality of electric wires W1 can be held between them.

The first rear part RH1 includes an arc-shaped first housing part RH1a that can accommodate a part of the first electric wire W11, an arc-shaped second housing part RH1b that can house a part of the second electric wire W12, and a third electric wire. It has an arc-shaped third accommodating part RH1c that can accommodate a part of W13. Further, the first rear portion RH1 has two first holder engagement recesses RH1d that can be engaged with the housing claw portions 21c of the housing body portion 20.

The rear second part RH2 includes an arc-shaped fourth housing part RH2a that can accommodate a part of the first electric wire W11, an arc-shaped fifth housing part RH2b that can accommodate a part of the second electric wire W12, and a third electric wire. It has an arc-shaped sixth accommodating portion RH2c that can accommodate a part of W13. Further, the second rear portion RH2 has two second holder engagement recesses RH2d that can be engaged with the housing claw portions 21c of the housing body portion 20.

The rubber stopper G is made of elastic synthetic rubber. This shield connector 100 has three rubber plugs G. The three rubber plugs G of this embodiment have the same configuration. Therefore, among the three rubber plugs G, the rubber plug G located at the center in the first orthogonal direction Y will be explained, and the two rubber plugs G located on both sides of the rubber plug G in the first orthogonal direction Y will be explained. Omitted. The rubber stopper G is formed in a cylindrical shape and has a rubber through hole G1 that passes through the rubber stopper G in the axial direction X. Such a rubber plug G is arranged between the outer circumferential surface of the electric wire W1 and the inner circumferential surface of the housing main body 20 in the radial direction with the electric wire W1 inserted into the rubber through hole G1. Since the rubber stopper G is compressed by the electric wire W1 and the housing body 20 and comes into close contact with the electric wire W1 and the housing body 20, the rubber plug G is tightly attached to the electric wire W1 and the housing body 20 on the rear side of the housing body 20. This prevents water from entering the inside of the terminal accommodating part 23 from between.

The packing P is made of elastic synthetic rubber and is elastically deformable. The packing P is formed into an annular shape in a plane that intersects the axial direction X at right angles. As shown in FIG. 2, the packing P includes a packing main body P1 located at the center in the axial direction It has a packing rear part P3 that protrudes toward the side, and these parts are integrally formed.

The packing main body portion P1 has the largest thickness among the packings P, and has a lip portion P11 that projects outward in the radial direction. The lip portion P11 comes into contact with the inner peripheral surface of the wall of the other device 19 when the shield connector 100 is attached to the other device 19, and prevents foreign matter such as water from entering between the shield connector 100 and the other device 19. prevent The packing front part P2 is formed into a flat plate shape. The packing rear portion P3 is formed into a flat plate shape.

The front holder 2FH, rear holder 2RH, rubber plug G, and packing P shown in FIG. .

The operator first inserts the electric wire W1 into the rubber through hole G1 of the rubber stopper G, and then attaches the terminal W2 to the end of the electric wire W1.

Next, the operator places the electric wire with the terminal W2 attached on the rear side of the housing body part 20, and with the housing body part 20 fixed with a jig (not shown), moves the terminal W2 from the rear side to the front side. , and arrange the terminals W2 in each terminal accommodating portion 23, respectively. When the terminal W2 is placed in the terminal accommodating portion 23, the first housing claw portion 23d engages with the terminal engaging hole portion 211, and the terminal W2 is held in the housing body portion 20.

Next, the operator places the front holder 2FH on the front side of the housing body 20, and places the packing P between the housing body 20 and the front holder 2FH. Then, the operator moves the front holder 2FH rearward relative to the housing body 20 fixed to a jig (not shown), and assembles the front holder 2FH and the packing P to the housing body 20, for example. In this state, the packing front part P2 is inserted into the notch FH1b of the holder main body part FH1, and is located between the outer circumferential surface of the housing main body part 20 and the inner circumferential surface of the front holder 2FH. Additionally, in this state, the packing rear part P3 is accommodated in the packing accommodation space 22S of the housing main body part 20. Furthermore, in this state, the entry protrusion FH2 of the front holder 2FH enters the terminal accommodating part 23 of the housing main body part 20, the second housing claw part 23f is inserted into the holder through hole FH3, and the elastic deformation part FH4 is inserted into the terminal engaging hole 211. When the front holder 2FH is assembled to the housing body 20, the front wall F11 of the front holder 2FH is positioned opposite to the first housing claw 23d of the housing body 20, as shown in FIG. , the terminal W2 is prevented from falling off from the housing body portion 20.

Next, the operator places the first rear part RH1 and the second rear part RH2 of the rear holder 2RH on the rear side of the housing main body part 20 so as to be separated from each other in the second orthogonal direction Z. After arranging the three electric wires W1 between the first rear part RH1 and the second rear part RH2, the first rear part RH1 and the second rear part RH2 are brought close to each other in the second orthogonal direction Z, These three electric wires W1 are held between the first rear part RH1 and the second rear part RH2. Thereafter, the operator moves the rear holder 2RH forward with respect to the housing main body 20 fixed to a jig (not shown), for example, and causes the rear holder 2RH to enter the cylindrical part space 21S. At this time, the operator engages the housing claw part 21c and the first holder engagement recess RH1d, and also engages the housing claw part 21c and the second holder engagement recess RH2d to move the rear holder 2RH into the housing. It is assembled into the main body part 20. In this way, the front holder 2FH, the rear holder 2RH, the rubber plug G, and the packing P are assembled to the housing main body 20, and the assembly of the first subassembly 101 is completed.

Next, the spacer 3, shield shell 4, conductive resin member 5, braided body 6, and fixing member 7, which is a shield ring, which constitute the second subassembly 102 will be explained.

The spacer 3 is formed from an insulating synthetic resin into a substantially cylindrical shape along the axial direction X. That is, the spacer 3 is formed into a substantially cylindrical shape along the axis XL. The spacer 3 is located between the shield shell 4 and the counterpart device 19 in the axial direction X. As shown in FIG. 5, the spacer 3 has a spacer cylindrical portion 31 and a spacer protrusion 32, which are integrally formed.

The spacer cylindrical portion 31 has a spacer space 31S therein, and is formed into a substantially elongated cylindrical shape along the axial direction X.

The spacer protruding portion 32 protrudes further radially outward from the radially outer end of the spacer cylindrical portion 31, and protrudes forward from the radially outer end. It is formed. The spacer protruding portion 32 has a spacer flange portion 32a and a plate-shaped spacer plate portion 32b. The spacer flange portion 32a and the spacer plate-like portion 32b are connected in an L-shape when viewed from one side in the first orthogonal direction Y.

The spacer flange portion 32a is formed in a substantially elongated annular shape along the axial direction X as a whole.
The spacer flange portion 32a has a spacer claw portion 32a1 that protrudes further toward the rear side from an end face 32f located on the rear side in the axial direction X. The spacer flange portion 32a of this embodiment has four spacer claw portions 32a1.

As shown in FIG. 2, the spacer claw portion 32a1 includes a spacer base end portion 3211 extending from the front side toward the rear side in the axial direction portion 3212 and a tip portion 3213 that protrudes further forward from the front end of the bent portion 3212, and is formed in a U-shape as a whole. The spacer claw portion 32a1 engages with a first shell through hole 42a1 of the shield shell 4, which will be described later. When the spacer claw portion 32a1 and the first shell through hole 42a1 are engaged, a shell flange portion 42a, which will be described later, is held between the end surface 32f and the tip portion 3213, and the spacer 3 is assembled to the shield shell 4.

The spacer plate portion 32b is formed to protrude from one end of the spacer flange portion 32a toward the front side in the axial direction X in the second orthogonal direction Z.

The spacer plate portion 32b has a spacer through hole 32b1 that penetrates the spacer plate portion 32b in the second orthogonal direction Z. The spacer through-hole 32b1 is formed, for example, in a circular shape. The spacer plate-like portion 32b of this embodiment has, for example, four spacer through holes 32b1. A collar 33 is provided in the spacer through hole 32b1.

The collar 33 is made of, for example, a metal having greater rigidity than the spacer 3. The spacer 3 of this embodiment has two collars 33, and these collars 33 are formed together with the spacer 3 by integral molding such as insert molding. The shield connector 100 of the present embodiment is constructed by, for example, housing the two collars 33 in a mold (not shown), injecting and filling the inside of the mold with molten resin, and then filling the mold. When the resin is cooled and solidified, the collar 33 is formed assembled to the spacer 3.

The shield shell 4 is made of conductive metal and is formed into a substantially cylindrical shape along the axial direction X. That is, the shield shell 4 is formed into a substantially cylindrical shape along the axis XL. The shield shell 4 of this embodiment is made of conductive aluminum or aluminum alloy. As shown in FIG. 2, the shield shell 4 is located outside the housing body 20 and accommodates a part of the housing body 20. That is, the shield shell 4 accommodates a portion of the housing 2 inside. As shown in FIG. 5, the shield shell 4 has a shell cylindrical portion 41 and a shell protrusion 42, which are integrally formed.

The shell cylindrical portion 41 has a shell space 41S therein, and is formed into a substantially elongated cylindrical shape along the axial direction X by the shell peripheral wall 41a. The shell cylindrical portion 41 has shell claw portions (not shown) that protrude radially inward from the inner circumferential surface. The shell claw portions of this embodiment are provided at the rear end portions of the recesses 41b that are recessed from the rear side to the front side in the shell cylindrical portion 41. A shell recess 41c is formed in the outer circumferential surface 4o of the shell cylindrical portion 41, and is recessed from the outside in the radial direction to the inside (see FIG. 3). The shell recess 41c extends continuously along the outer circumferential surface 4o of the shell cylindrical portion 41 and in the circumferential direction R relative to the axis XL. Further, the rear outer circumferential surface 4o of the shell cylindrical portion 41 is formed into a curved surface that does not protrude outward in the direction orthogonal to the axis XL.

The shell protruding portion 42 is formed to protrude radially outward from the front end of the shell cylindrical portion 41, and then further protrude forward from the radially outer end. . The shell protruding portion 42 has a shell flange portion 42a and a plate-shaped shell plate portion 42b. The shell flange portion 42a and the shell plate portion 42b are connected in an L-shape when viewed from one side in the first orthogonal direction Y.

The shell flange portion 42a is formed in a substantially elongated annular shape along the axial direction X as a whole. The shell flange portion 42a has a first shell through hole 42a1 that passes through the shell flange portion 42a in the axial direction X. The first shell through hole 42a1 is, for example, formed in a rectangular shape. The shell flange portion 42a of this embodiment has four first shell through holes 42a1.

The shell plate portion 42b has a second shell through hole 42b1 that penetrates the shell plate portion 42b in the first orthogonal direction Y. The second shell through hole 42b1 is formed, for example, in a circular shape. The inner diameter of the second shell through hole 42b1 is the same as the inner diameter of the collar 33. The shell plate portion 42b of this embodiment has four second shell through holes 42b1.

The conductive resin member 5 shown in FIG. 5 is provided on the braided body 6. The conductive resin member 5 contains a conductive material and is formed of an insulating synthetic resin into a double substantially cylindrical shape along the axial direction X. That is, the conductive resin member 5 is formed into a substantially cylindrical shape along the axis XL. The conductive resin member 5 of this embodiment includes conductive carbon, which is a conductive material, in an insulating synthetic resin, and has conductivity as a whole. Carbon is, for example, carbon black, which has electrical conductivity. Further, carbon preferably has a rigidity higher than that of the insulating synthetic resin. The conductive resin member 5 of this embodiment has a base 5a located on the inside, and a folded part 5b folded back outward from the front end of the base 5a. That is, the base portion 5a is located on the inside in the radial direction, the folded portion 5b is located on the outside in the radial direction, and the front side of the base portion 5a and the front side of the folded portion 5b are connected.

The base portion 5a is formed in a substantially elongated cylindrical shape along the axial direction X, and extends continuously in the circumferential direction R along the inner circumferential surface 6i of the braided body 6 (see FIGS. 3 and 5). In addition, when no external force is applied to the base portion 5a, there are no protrusions projecting from the inner circumferential surface 5ai and the outer circumferential surface 5ao, and no concave portions. Moreover, the inner circumferential surface 5ai of the base 5a contacts the outer circumferential surface 4o of the shield shell 4, as shown in FIG. Therefore, the conductive resin member 5 is electrically connected to the shield shell 4. Moreover, the outer circumferential surface 5ao of the base 5a of the conductive resin member 5 of this embodiment contacts the inner circumferential surface 6i of the braided body 6. Therefore, the conductive resin member 5 is electrically connected to the braided body 6. As a result, in the shield connector 100, the shield shell 4 and the braided body 6 are electrically connected via the conductive resin member 5. Thereby, the shield connector 100 exhibits the desired shielding function, and the shielding function suppresses noise generated from the power supply wire W1 from leaking to the outside of the shield shell 4 and the outside of the braided body 6. I can do it. Further, since a part (base 5a) of the conductive resin member 5 is located between the shield shell 4 and the braided body 6 in the direction orthogonal to the axial direction X of the shield connector 100, the outer peripheral surface of the shield shell 4 4o and the inner peripheral surface 6i of the braided body 6, a resin member space 5S is formed. Therefore, in the shield connector 100 of this embodiment, the conductive resin member 5 causes the shield shell 4 and the braided body 6 to be in a non-contact state.

The folded portion 5b is formed in a substantially elongated cylindrical shape along the axial direction X, and extends continuously in the circumferential direction R along the outer peripheral surface 6o of the braided body 6. Therefore, the folded portion 5b surrounds one end 6a of the braided body 6 over the entire circumference. When no external force is applied to the folded portion 5b, there are no protrusions projecting from the inner peripheral surface 5ai and the outer peripheral surface 5ao, and no recessed portions.

The braided body 6 shown in FIG. 5 is formed by braiding conductive metal and providing a plating layer of conductive metal on the surface of the braided metal. The plating layer in this embodiment is a tin plating layer. That is, in the shield connector 100 of this embodiment, the metal forming the plating layer of the braided body 6 and the metal forming the shield shell 4 are different. The braided body 6 is formed into a substantially cylindrical shape along the axial direction X so as to have a front side portion 61, a rear side portion 62, and a reduced diameter portion 63. That is, the braided body 6 is formed into a cylindrical shape along the axis XL. The front portion 61 is disposed on the front side in the axial direction X and is formed into a substantially elongated cylindrical shape. The front portion 61 has an end 61a on the front side in the axial direction X, and the end 61a forms a front opening 61b. The rear portion 62 is disposed on the rear side in the axial direction X and is formed in a substantially elongated cylindrical shape. The braided body 6 is formed such that the radial length of the rear portion 62 is smaller than the radial length of the front portion 61. Further, the rear side portion 62 extends in the axial direction X. The reduced diameter portion 63 is disposed between the front portion 61 and the rear portion 62 in the axial direction X, and is formed into a substantially elongated cylindrical shape. The reduced diameter portion 63 has a radial size that gradually decreases in the axial direction X from the front side toward the rear side.

The front portion 61 is held between the base portion 5a and the folded portion 5b of the conductive resin member 5, as shown in FIG. Further, the front side portion 61 has a laminated portion 61c sandwiched between the base portion 5a of the conductive resin member 5 and the folded portion 5b in a direction intersecting the axial direction X.

The fixing member 7 is, for example, a cylindrical shield ring. The fixing member 7 is composed of a metal tie or a crimp ring having a substantially oval annular shape. The inside of the fixing member 7 has a fixing member convex portion 7a located at the center in the axial direction X and protruding from the outside in the radial direction to the inside. The fixing member protrusion 7a can engage with the shell recess 41c. The fixing member convex portion 7a is located in the middle of the fixing member 7 in the axial direction X. The fixing member convex portion 7a presses the folded portion 5b of the conductive resin member 5 radially inward to bring the folded portion 5b into contact with the braided body 6, and the base portion 5a of the conductive resin member 5. is pressed radially inward to bring the base 5a and the shield shell 4 into contact. The fixing member 7 is located outside the laminated portion 61c of the braided body 6, and by reducing the diameter from the radially outer direction to the radially inner direction, the fixing member 7 brings the shield shell 4 and the conductive resin member 5 into contact with each other. The resin member 5 and the braided body 6 are brought into contact. That is, the shield connector 100 properly electrically connects the braided body 6 and the conductive resin member 5 via the conductive resin member 5, and electrically connects the conductive resin member 5 and the shield shell 4. Connect to. Therefore, the shield connector 100 electrically connects the shield shell 4 and the braided body 6 via the conductive resin member 5. With these, the shield connector 100 exhibits a desired shield function by electrically connecting the shield shell 4 and the braided body 6, and the shield function reduces noise generated from the power supply wire W1. Leakage to the outside of the shield shell 4 and the outside of the braided body 6 can be suppressed. In addition, in the shield connector 100 in this state, the conductive resin member 5 is located between the shield shell 4 and the braided body 6, so the shield shell 4 and the braided body 6 are in a non-contact state.

The spacer 3, conductive resin member 5, braided body 6, and fixing member 7 shown in FIG. Assemble.

The operator first fixes the shield shell 4 using a jig (not shown), and then arranges the spacer 3 on the front side of the shield shell 4.

The operator then moves the spacer 3 to the rear side in the axial direction X with respect to the shield shell 4, engages the spacer claw portion 32a1 with the first shell through hole 42a1, and assembles the spacer 3 to the shield shell 4. .

The operator then inserts one end of the braided body 6 in the axial direction X inside the fixing member 7 .

Next, in the conductive resin member 5, the operator lines up the base 5a and the folded part 5b along the axial direction X, and inserts the outer circumferential surface 4o of the shield shell 4 inside the base 5a in the radial direction. .

The operator then places the front portion 61 of the braided body 6 on the outside of the outer peripheral surface 5ao of the base 5a.

Next, the operator folds back the folded portion 5b with respect to the base portion 5a in the axial direction .

Finally, the operator reduces the diameter of the fixing member 7 and assembles the conductive resin member 5, the braided body 6, and the fixing member 7 to the shield shell 4. In this way, the spacer 3, conductive resin member 5, braided body 6, and fixing member 7 are assembled to the shield shell 4, and the assembly of the second subassembly 102 is completed.

Next, the operator assembles the second subassembly 102 to the first subassembly 101. More specifically, by engaging the shell claw portion formed corresponding to the recess 41b of the shield shell 4 shown in FIG. 5 with the housing through hole 21b of the housing main body 20 shown in FIG. The second subassembly 102 is assembled to the first subassembly 101, and the shield connector 100 shown in FIG. 1 is assembled.

In such a shielded connector 100, as shown in FIG. 1, an operator uses a bolt 18 having a head 18a and a threaded part 18b and a nut (not shown), and inserts the tip of the threaded part 18b into the defective part of the mating device 19. The bolt is inserted into the illustrated bolt through hole, and the tip of the threaded portion 18b is inserted into the collar 33 and the second shell through hole 42b1. Next, the operator assembles the shield connector 100 to the counterpart device 19 by fastening the threaded portion 18b and the nut.

The shield connector 100 according to this embodiment has the following configuration. The shield connector 100 according to the present embodiment includes a fixing member 7 that fixes the braided body 6 to the shield shell 4 in a non-contact state between the shield shell 4 and the braided body 6. When the braided body 6 is fixed to the shield shell 4 by the fixing member 7, the shield shell 4 and the braided body 6 are electrically connected via the conductive resin member 5. Therefore, the shield connector 100 according to the present embodiment can electrically connect the shield shell 4 and the braided body 6 via the conductive resin member 5 in a non-contact state. I can do it. As a result, the shield connector 100 according to the present embodiment can suppress galvanic corrosion from occurring in the shield shell 4 and the braided body 6. Moreover, since the shield connector 100 according to the present embodiment electrically connects the shield shell 4 and the braided body 6 via the conductive resin member 5, the conductivity between the shield shell 4 and the braided body 6 is reduced. This makes it possible to maintain desired shielding performance. Moreover, since the shield connector 100 according to the present embodiment can suppress galvanic corrosion from occurring in the shield shell 4 and the braided body 6, durability can be improved.

The shield connector 100 according to this embodiment has the following configuration. The conductive resin member 5 includes a folded portion 5b that surrounds one end 6a of the braided body 6 in the axial direction X over the entire circumference. Therefore, in the shield connector 100 according to the present embodiment, the folded portion 5b can prevent one end 6a of the braided body 6 in the axial direction X from contacting other components. Therefore, the shield connector 100 of this embodiment does not require other means such as folding back the braided body 6 or providing another part to cover one end 6a of the braided body 6 in the axial direction X. , one end of the braided body 6 in the axial direction X can be prevented from fraying.

The shield connector 100 according to this embodiment has the following configuration. The conductive material is a conductive carbon-based material. Therefore, in the shield connector 100 according to the present embodiment, since the carbon-based material that is the conductive material is harder than the insulating synthetic resin, the rigidity of the conductive resin member 5 can be improved. Therefore, the shield connector 100 of this embodiment can suppress elastic deformation of the conductive resin member 5. As a result, in the shield connector 100 according to the present embodiment, if the conductive resin material is disposed between the shield shell 4 and the braided body 6 in a cross-sectional view including the axis, the clearance between the shield shell 4 and the braided body 6 can be increased. can be ensured, and a non-contact state between the shield shell 4 and the braided body 6 can be maintained.

In addition, in the embodiment mentioned above, the shield connector 100 used for the electric wire W1 for power supply that supplies electric power to an inverter, a motor, etc. in a vehicle has been described. However, the present embodiment is not limited thereto, and the shield connector 100 can be used for signal lines that transmit and receive electrical signals to various electronic devices in the vehicle. By using the shield connector 100 for the signal line, it is possible to suppress external noise from entering the signal line.

Moreover, the shield connector 100 of the embodiment described above is the shield connector 100 used as a connection mechanism for connecting the electric wire W1 to an electric device. However, the shield connector 100 according to the present embodiment is not limited thereto, and can be applied to the shield connector 100 used in a connection mechanism for wire W1 to wire W1.

Further, the conductive resin member 5 of the above-described embodiment is one in which conductive carbon or the like as a filler is contained in a synthetic resin having insulating properties. However, the present invention is not limited thereto, and the conductive resin member 5 may include a conductive metal as a filler in an insulating synthetic resin. When a conductive metal is used as the filler, the conductive resin member 5 is made of the same type of metal as the metal used for forming the shield shell 4 and the metal used for plating the braided body 6, or , it is preferable to use different metals with similar standard electrode potential differences. Galvanic corrosion occurs when a solution such as water is applied to a location where dissimilar metals with different standard electrode potentials come into contact. However, galvanic corrosion can be suppressed when different metals with similar standard electrode potentials come into contact. Examples of metal groups with small differences in standard electrode potential include aluminum, zinc, and iron.

Furthermore, the shield shell 4 of the embodiment described above is made of conductive aluminum or aluminum alloy. However, the present embodiment is not limited thereto, and the shield shell 4 may be made of other conductive metal.

Moreover, the braided body 6 of the embodiment described above is one in which conductive metal is woven together and a tin plating layer is provided on the surface of the woven metal. However, the present embodiment is not limited thereto, and the plating layer may be provided with other conductive metals.

2 Housing 4 Shield shell 5 Conductive resin member 5b Folded portion 6 Braided body 6a One end 7 Fixing member 100 Shield connector W1 Electric wire W11 First electric wire (electric wire)
W12 2nd electric wire (electric wire)
W13 Third electric wire (electric wire)
W2 Terminal W21 1st terminal (terminal)
W22 2nd terminal (terminal)
W23 3rd terminal (terminal)

Claims (3)

An electric wire with a terminal at one end,
an insulating housing that holds the terminal;
a shield shell formed in a cylindrical shape from a conductive metal and housing a portion of the housing inside;
a conductive braided body formed in a cylindrical shape, accommodating a portion of the electric wire inside, and placed outside the shield shell and plated with a metal different from the metal forming the shield shell;
a conductive resin member containing a conductive material and formed in a cylindrical shape from an insulating synthetic resin and provided on the braided body;
a fixing member that fixes the braided body to the shield shell in a non-contact state with the shield shell;
Equipped with
When the braided body is fixed to the shield shell by the fixing member, the shield shell and the braided body are electrically connected via the conductive resin member,
shield connector. The conductive resin member includes a folded portion that surrounds the entire circumference of one end of the braided body in the axial direction.
A shielded connector according to claim 1. the conductive material is a conductive carbon-based material;
A shielded connector according to claim 1.

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