JP4458787B2 - Shield processing method for shielded wire - Google Patents

Description

The present invention relates to a shield processing method for a shielded electric wire formed by ultrasonic welding of a shielded electric wire and a ground wire using two resin members.

  As a conventional shield processing structure by ultrasonic welding, there is one disclosed in Patent Document 1. As shown in FIGS. 7 (a) and 7 (b), this shield processing structure includes two resin members 50 and 51 in which arc grooves 50b and 51b are formed on the joint surfaces 50a and 51a and an ultrasonic horn. Formed using. More specifically, as shown in FIGS. 8 to 10, the ground wire 53 is placed on the shield wire 52 where the outer periphery of the core wire 52 a is covered with a braided wire (shield covering member) 52 c, and the ground wire A portion of the shielded electric wire 52 on which 53 is placed is sandwiched between two resin members 50 and 51, and ultrasonic vibration is applied with an ultrasonic horn while compressing the space between the upper and lower resin members 50 and 51.

When ultrasonic vibration is applied by the ultrasonic horn, the resin members 50 and 51, the insulating outer sheath 52d of the shielded electric wire 52, and the insulating outer sheath 53b of the ground wire 53 are melted by the vibration energy at the time of ultrasonic vibration. The core wire 53a and the braided wire 52c of the shielded electric wire 52 are brought into contact with each other. When the ultrasonic vibration is finished and the melted portion is solidified, the two resin members 50 and 51 are integrated and the shielded electric wire 52 and the ground wire 53 are joined.
JP 2001-6767 A

  However, as shown in FIG. 11, in the state in which the shield wire 52 and the ground wire 53 are sandwiched between the two resin members 50 and 51 when performing ultrasonic welding, only the arc grooves 50b and 51b of the resin members 50 and 51 are shielded. The electric wire 52 and the ground wire 53 are in close contact with each other, and the peripheral electric wire peripheral surfaces 50c and 51c are set apart from each other. Therefore, until ultrasonic welding progresses and the electric wire peripheral surfaces 50 c and 51 c are brought into close contact with each other, vibration energy at the time of ultrasonic vibration is concentrated only on the shielded electric wire 52 and the ground wire 53. If the vibration energy is excessively concentrated in this way, even the insulating endothelium 52b of the shielded electric wire 52 is melted, and a sufficient interval between the core wire 52a and the braided wire 52c is not secured, and the insulating performance of the shielded electric wire 52 is deteriorated. In the worst case, there is a possibility that the core wire 52a and the braided wire 52c are short-circuited.

  Further, in the shield processing structure of the conventional shielded electric wire 52, since the joint surfaces 50a and 51a of the two resin members 50 and 51 are merely brought into contact with each other, the two resin members 50 and 51 are separated by ultrasonic vibration. May cause misalignment.

  In order to solve this, positioning between the two resin members 50 and 51 by providing a protrusion on one joint surface 50a and 51a of the two resin members 50 and 51 and a hole on the other joint surface 50a and 51a, respectively. Can be considered. If comprised in this way, while the position shift between the two resin members 50 and 51 can be prevented, the adhering force between the two resin members 50 and 51 is obtained by melting the tip of the protrusion and the bottom of the hole. improves.

  However, the shielded electric wire 52 and the ground wire 53 are sandwiched between the two resin members 50 and 51, and the electric wire contact surfaces such as the arc grooves 50 b and 51 b of the resin members 50 and 51 are connected to the shielded electric wire 52 and the ground wire 53. If it is set so that only the protrusion is in close contact with the bottom surface of the hole without being in close contact with the surface of the hole, the vibration energy at the time of ultrasonic vibration is concentrated only on the protrusion so that the protrusion is broken. Then, on the contrary, the fixing force between the two resin members 50 and 51 is lowered, and as a result, the electric wire holding force is lowered.

Therefore, the present invention has been made to solve the above-described problem, and prevents a problem caused by excessively concentrating vibration energy at the time of ultrasonic vibration on the shielded wire and the protruding portion. An object of the present invention is to provide a shield processing method for a shielded wire that can improve both the insulation performance and the wire holding force.

According to the first aspect of the present invention, a shielded wire and an earth wire whose outer periphery is covered with a shield covering member are sandwiched between two resin members, and ultrasonic vibration is applied while applying a compressive force between the two resin members. a shield processing method of the shielded wire contact portions Ru is formed between the shield cover member and the core wire of the ground wire of the shielded electric wire in Rukoto to melt the resin portion, the the bonding surface of the resin member, wherein Provided is a semicircular groove-shaped arc surface for shielded electric wire that contacts the shielded electric wire so as to extend in the axial direction of the shielded electric wire, and the arcuate surface for earth wire contacted by the grounded wire extends in the intersecting direction intersecting the axial direction. provided as to extend, said as an arc face for the shielded electric wire each resin member, an arcuate surface shielding wire ends are disposed in the both axial ends, the two ends in the axial direction central portion And a central shield wire for arc surface which is provided apart from the shielded electric wire for arc surface, the provided, provided with a wire circumferential surface in the cross direction across the center of the shielded wire for arc surface of each resin member, Examples grounding wire arcuate surface of each resin member, the cross-direction outer grounding wire arcuate surface at both ends which is disposed through the resin inlet recess side of the wire around the surface provided, one of the resin of each resin member a protrusion on the joint surface outer edge portion of the member, the bore in which the protrusion on the joint surface outer edge portion of the other resin member is inserted is provided, when sandwiched the ground wire and the shielded electric wire in the two resin members The shielded wire arc surface at both ends of the both resin members, the shielded wire arc surface at the center of one resin member, and a portion of the shielded wire arc surface at the center of the other resin member are the shielded wire. Adhesion Rutotomoni, in close contact with the circular arc surface grounding wire bi side of the resin member, a portion and said ground wire in the center of the shield arcuate surface wires of the other side of the resin member, the wire circumferential surface of the one resin member features and the between the wire circumferential surface of the other resin member, that one or both one of between the bottom surface of the hole of the other resin member and the projection of the one of the resin member has to be in close contact And

In this shielded wire shielding method , when ultrasonic vibration is started, vibration energy acts directly on the wire contact surface and other locations from the beginning of vibration, so the vibration energy during ultrasonic vibration is shielded. The deterioration of the insulation performance due to excessive concentration on the electric wires is prevented. In addition, the bending of the protrusion due to excessive concentration of vibration energy during ultrasonic excitation on the protrusion is prevented.

Invention of Claim 2 is the shield processing method of the shielded electric wire of Claim 1, Comprising: When the said shielded electric wire and the said ground wire are inserted | pinched with the said two resin members, the electric wire peripheral surface of said one resin member and the between the wire circumferential surface of the other resin member, characterized in that the between the bottom surface of the hole of the other resin member and the projection of the one of the resin member has to be in close contact with both.

In this shielded wire shielding method , when ultrasonic vibration is started, vibration energy is dispersed from the beginning by directly acting on the wire contact surface, the wire peripheral surface, the protrusion, and the bottom surface of the hole. The Therefore, the vibration energy does not concentrate only on the electric wire contact surface, and does not concentrate only on the bottom surface of the protrusion and the hole.

Invention of Claim 3 is the shield processing method of the shielded electric wire of Claim 1, Comprising: When the said shielded electric wire and the said ground wire are inserted | pinched with the said two resin members, the electric wire peripheral surface of said one resin member wherein as between the wire circumferential surface of the other resin member is in close contact, characterized in that between the bottom surface of the hole of the other resin member and the projection of the one of the resin member has to be separated from the.

In this shielded wire shielding method , when ultrasonic vibration is started, vibration energy is dispersed by acting directly on the wire contact surface and the wire peripheral surface at the beginning of the vibration, and the resin melting proceeds and the protrusions and holes are moved. When the bottom surface of the resin comes into close contact, the vibration energy directly acts on the bottom surface of the protrusion and the hole, and the resin melting at that point is started. Therefore, the vibration energy does not concentrate only on the electric wire contact surface, and does not concentrate only on the bottom surface of the protrusion and the hole.

Invention of Claim 4 is the shield processing method of the shielded electric wire of Claim 1, Comprising: When the said shielded electric wire and the said ground wire are inserted | pinched with the said two resin members, the electric wire peripheral surface of said one resin member wherein as between the wire circumferential surface of the other resin member is separated, characterized in that between the bottom surface of the hole of the other resin member and the projection of the one of the resin member has to be in close contact with.

In this shielded wire shielding method , when ultrasonic vibration is started, vibration energy is initially dispersed by acting directly on the wire contact surface, the protrusion, and the bottom of the hole, and the resin melting proceeds. When the electric wire peripheral surfaces are in close contact with each other, vibration energy directly acts between the electric wire peripheral surfaces, and resin melting at that point is started. Therefore, the vibration energy does not concentrate only on the electric wire contact surface, and does not concentrate only on the bottom surface of the protrusion and the hole.

As described above, according to the first aspect of the present invention , the wire peripheral surface is provided at both ends in the intersecting direction intersecting the axial direction of the shielded electric wire in the arcuate surface of the shielded electric wire at the center of each resin member, and As the arc surface for the ground wire, the ground wire arc surface at both ends arranged via the resin inflow recess is provided on the outer side in the intersecting direction of the peripheral surface of the electric wire, and protrudes at the outer edge of the joint surface of one resin member of each resin member When a hole is inserted in the outer edge of the joint surface of the other resin member and the projection is inserted between the two resin members, the shielded wire arcs at both ends of both resin members The arc surface for the shielded electric wire at the center of the surface and the one resin member and a part of the arcuate surface for the shielded electric wire at the center of the other resin member are in close contact with the shielded electric wire, and the arc for the ground wire of both the resin members and the surface, the other side of the tree And part of the central of the shielded wire for arc surface of the member is in close contact with the ground wire, and between the wire circumferential surface of the wire around the surface and the other of the resin member of one of the resin member, the projection portion of one resin member other since one or both one of between the bottom surface of the hole of the resin member has to be in close contact, starting the ultrasonic vibration, in place of others and vibrational energy wire contact surface from the beginning vibrating Since it acts directly, it is possible to prevent a decrease in insulation performance due to excessive concentration of vibration energy during ultrasonic excitation on the shielded wire. Therefore, the insulation performance of the shielded wire is improved. Further, it is possible to prevent the protrusions from being bent due to excessive concentration of vibration energy at the time of ultrasonic vibration on the protrusions. Accordingly, the fixing force between the two resin members is increased, and as a result, the electric wire holding force is improved.

According to invention of Claim 2, in the state which pinched | interposed the shield electric wire and the earth wire with two resin members, between the electric wire peripheral surface of one resin member and the electric wire peripheral surface of the other resin member, one resin member When the ultrasonic vibration is started, vibration energy is generated from the wire contact surface, the wire peripheral surface, and the protrusion from the beginning of the vibration. And by acting directly on the bottom surface of the hole. As a result, the vibration energy is not concentrated only on the contact surface of the electric wire or only on the bottom surface of the protrusion and the hole, so that both the insulation performance of the shielded electric wire and the electric wire holding force can be improved. .

According to the invention of claim 3, in a state where the shield wire and the ground wire are sandwiched between two resin members, the wire peripheral surface of one resin member and the wire peripheral surface of the other resin member are in close contact with each other, Since the protrusion of one resin member and the bottom surface of the hole of the other resin member are separated from each other, when ultrasonic vibration is started, vibration energy is initially applied to the wire contact surface and the wire peripheral surface. When the resin melts and the resin melt progresses and the protrusion and the bottom of the hole come into close contact with each other, vibration energy directly acts on the protrusion and the bottom of the hole to start the resin melting at that point. As a result, the vibration energy is not concentrated only on the contact surface of the electric wire or only on the bottom surface of the protrusion and the hole, so that both the insulation performance of the shielded electric wire and the electric wire holding force can be improved. .

According to the invention of claim 4, in a state where the shield wire and the ground wire are sandwiched between the two resin members, the wire peripheral surface of one resin member and the wire peripheral surface of the other resin member are separated from each other, Since the protrusion of one resin member and the bottom surface of the hole of the other resin member are in close contact with each other, when ultrasonic vibration is started, vibration energy is initially transferred to the wire contact surface, the protrusion, and the hole. When the resin melt progresses and the electric wire peripheral surfaces come into close contact with each other, vibration energy directly acts between the electric wire peripheral surfaces to start the resin melting at that point. As a result, the vibration energy is not concentrated only on the contact surface of the electric wire or only on the bottom surface of the protrusion and the hole, so that both the insulation performance of the shielded electric wire and the electric wire holding force can be improved. .

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

  1 to 4 show a first embodiment of the present invention, FIG. 1 is an exploded perspective view for explaining a shield processing method, FIG. 2 is a perspective view of a resin member, and FIG. Sectional drawing which shows the state which pinched | interposed the shield electric wire and the ground wire with the resin member, FIG. 4 is sectional drawing of an ultrasonic welding part.

  As shown in FIG. 1, the shielded electric wire 1 includes two twisted core wires 1a, 1a, insulating endothelium 1b, 1b of a resin material covering the outer periphery of each of the core wires 1a, 1a, and the insulating endothelium 1b, The braided wire 1c, which is a shield covering member that covers the outer periphery of 1b, and an insulating sheath 1d that is a resin material that covers the outer periphery of the braided wire 1c.

  The ground wire 2 is composed of a core wire 2a and an insulating sheath 2b made of a resin material that covers the outer periphery of the core wire 2a.

  As shown in FIGS. 1 and 2, the pair of resin members 3 and 3 are the same part, and the wire contact surfaces 16 on which the shielded wire 1 and the ground wire 2 are contacted are respectively connected to the joint surfaces 3 a and 3 a. Is formed. The wire contact surface 16 is composed of a semicircular groove-shaped shielded wire arc surface 16a extending in a linear direction and a ground wire arc surface 16b extending in a direction orthogonal to the shielded cable arc surface 16a. An electric wire peripheral surface 17 is formed around the central portion of the electric wire contact surface 16, and a resin inflow recess 18 is formed on the outer peripheral side of the electric wire peripheral surface 17 over the entire periphery. The resin inflow recess 18 is for the molten resin to flow in from the electric wire contact surface 16 and the electric wire peripheral surface 17, thereby preventing the molten resin from flowing out of the pair of upper and lower resin members 3, 3. It is like that.

  Outer edge surfaces 19 are respectively formed at four positions on the diagonal line outside the resin inflow recess 18. Each outer edge surface 19 on one diagonal line is provided with a protrusion 20 and each outer edge surface 19 on the other diagonal line is provided with a hole 21. That is, the pair of resin members 3 and 3 are assembled by inserting the protrusions 20 of the resin members 3 and 3 into the holes 21 when the joint surfaces 3a and 3a are abutted with each other. It has become.

  As shown in FIG. 3, a resin inflow groove 22 is formed at the back of the bottom surface 21 a of the hole 21. The resin inflow groove 22 is for the molten resin to flow in from the protrusions 20 and the like, thereby preventing the molten resin from flowing out of the pair of upper and lower resin members 3 and 3. The bottom surface 21a of the hole 21 is formed as an inclined surface. When the tip end surface 20a of the protrusion 20 contacts the bottom surface 21a, the bottom surface 21a comes into contact with a line.

  When the ultrasonic vibration is applied, when the shielded electric wire 1 and the ground wire 2 are sandwiched between the pair of resin members 3, 3, as shown in FIG. 3, both the electric wire contact surfaces 16, 16 are connected to the shielded electric wire 1. And the ground wire 2 (shown in section in FIG. 3 where the ground wire 2 is not disposed) are in close contact with each other, between the peripheral surfaces 17 and 17 of both wires, and between the tip end surface 20a of the protrusion 20 and the hole 21. It is set so that both the bottom surfaces 21a are in close contact with each other.

  As shown in FIG. 2, the ultrasonic horn 4 is composed of a lower support 5 and an ultrasonic horn main body 6 that is disposed directly above and generates ultrasonic vibrations. Both the lower support 5 and the ultrasonic horn main body 6 are provided separately to be vertically movable. The resin member 3 is set on the upper surface of the lower support base 5, and the set resin member 3 is held with its joint surface 3a facing upward. The resin member 3 is set on the lower surface of the ultrasonic horn main body 6, and the set resin member 3 is held with its joint surface 3a facing upward.

  The shield processing jig 7 has a resin installation opening 8 penetrating in the vertical direction, and a pair of wire insertion grooves 9 and 9 are provided at left and right positions outside the resin installation opening 8. . The pair of wire insertion grooves 9 and 9 are provided at a position of a distance (P / 2) that is a half of the twisting pitch P of the core wires 1a and 1a, and the twisted two core wires 1a and 1a. Is set to a width that allows insertion only at the position where the two are arranged in parallel in the vertical direction. The twisting pitch P of this embodiment is about 30 mm. The entrances of the electric wire insertion grooves 9 and 9 are formed in tapered surfaces 9a and 9a that gradually narrow in width toward the electric wire insertion direction.

  The shield processing jig 7 has a ground wire insertion groove 10 and a reference recess 11 at a position outside the resin installation opening 8 and perpendicular to the line connecting the pair of wire insertion grooves 9, 9. And are provided respectively. The ground wire 2 inserted from the ground wire insertion groove 10 is set at a substantially central position between the pair of wire insertion grooves 9 and 9.

  Next, a shield processing method using the shield processing jig 7 will be described.

  As shown in FIG. 1, a pair of upper and lower resin members 3 and 3 are set on the lower surface of the ultrasonic horn main body 6 and the upper surface of the lower support base 5, respectively. Further, the shielded electric wire 1 is inserted into the pair of electric wire insertion grooves 9 and 9 of the shield processing jig 7. Here, the shielded electric wire 1 is inserted into the electric wire insertion grooves 9 and 9 only at the positions where the twisted core wires 1a and 1a are arranged in parallel in the vertical direction.

  Next, the ground wire 2 is inserted into the ground wire insertion groove 10 of the shield processing jig 7 and inserted to a position where the tip of the ground wire 2 contacts the reference recess 11. As a result, the ground wire 2 is disposed in a state of being substantially in contact with the upper surface of the shielded electric wire 1 and intersecting the shielded electric wire 1.

  Next, the ground wire 2 is pulled back by a predetermined dimension so that the tip of the ground wire 2 does not protrude from the pair of upper and lower resin members 3 and 3, and the lower support 5 is moved upward and the ultrasonic horn body 6 is moved downward. Then, the upper and lower resin members 3 and 3 are butted against each other at the joint surfaces 3a and 3a. Then, the upper and lower resin members 3, 3 sandwich the shield wire 1 and the ground wire 2, the shield wire 1 is between both the shielded wire arcuate surfaces 16 a, 16 a, and the ground wire 2 is both the ground wire arcuate surfaces 16 b, It fits between 16b. Further, the protrusions 20 of both the resin members 3 and 3 are inserted into the holes 21 so that the pair of upper and lower resin members 3 and 3 are positioned.

  Next, when ultrasonic vibration is applied while applying a compressive force between the ultrasonic horn main body 6 and the lower support base 5, the insulating sheath 1d of the shielded electric wire 1 and the insulating sheath 2b of the ground wire 2 are caused by heat generated by vibration energy. The core wire 2a of the ground wire 2 and the braided wire 1c of the shielded electric wire 1 are brought into contact with each other by melting and scattering. Further, contact portions of the joint surfaces 3a and 3a of the pair of resin members 3 and 3, and contact portions of the shielded wire arcuate surfaces 16a and 16b of the pair of resin members 3 and 3 and the insulating sheath 1d of the shielded wire 1 The contact portions between the ground wire arcuate surfaces 16b and 16b of the pair of resin members 3 and 3 and the insulating sheath 2a of the ground wire 2 are melted by heat generated by vibration energy, and the melted portions are subjected to ultrasonic vibration after the end By solidifying, the pair of upper and lower resin members 3, 3, shielded electric wire 1 and ground wire 2 are fixed to each other (see FIG. 4).

  Next, details of vibration energy transfer during ultrasonic vibration will be described.

  In a state where the shielded electric wire 1 and the ground wire 2 are sandwiched between the pair of upper and lower resin members 3, 3, as shown in FIG. 3, both the contact surfaces 16, 16 are in close contact with the shielded electric wire 1 and the ground wire 2. Both the electric wire peripheral surfaces 17 and 17 and the tip surface 20a of the protrusion 20 and the bottom surface 21a of the hole 21 are set in close contact with each other. Therefore, when ultrasonic vibration is started, vibration energy from the beginning of vibration is directly applied to the wire contact surfaces 16, 16, the wire peripheral surfaces 17, 17, the tip surface 20 a of the protrusion 20, and the bottom surface 21 a of the hole 21. Dispersed from the beginning by acting. That is, since the vibration energy is not concentrated only on the electric wire contact surfaces 16 and 16, the insulating endothelium 1b of the shielded electric wire 1 is not melted, and a sufficient distance between the core wires 1a and 1a and the braided wire 1c can be secured. Moreover, since it does not concentrate only in the front end surface 20a of the projection part 20, and the bottom face 21a of the hole 21, the projection part 20 does not bend and the fixing force between a pair of upper and lower resin members 3 and 3 can be raised. Thereby, the improvement of the insulation performance of the shielded electric wire 1 and the improvement of electric wire holding power can be aimed at together.

  In addition, the resin melted at the joint surfaces 3 a and 3 a facing each other flows into the resin inflow recess 18 and does not flow outside, and the resin melted in the hole 21 flows into the resin inflow groove 22. Does not leak outside. Accordingly, it is possible to prevent the insulation sheaths 1d and 2b of the shielded electric wire 1 and the ground wire 2 from being partially damaged by the molten resin.

  FIG. 5 shows a second embodiment of the present invention and is a cross-sectional view showing a state in which the shielded electric wire 1 and the ground wire 2 are sandwiched between two resin members 3 and 3 when ultrasonically vibrating.

  As shown in FIG. 5, in the second embodiment, when the ultrasonic vibration is applied, in the state where the shielded electric wire 1 and the ground wire 2 are sandwiched between the pair of upper and lower resin members 3, 3, both the electric wire contact surfaces 16. , 16 are in close contact with the shielded electric wire 1 and the ground wire 2 and between the peripheral surfaces 17 and 17 of both electric wires are in close contact, but between the front end surface 20a of the protrusion 20 and the bottom surface 21a of the hole 21. Is set to be in a separated state. Since other configurations are the same as those of the first embodiment, detailed description thereof is omitted.

  In this second embodiment, when ultrasonic vibration is started, vibration energy is dispersed by acting directly on the electric wire contact surface 16 and the electric wire peripheral surface 17 at the beginning of vibration, and resin melting progresses and the projection 20 When the distal end surface 20a and the bottom surface 21a of the hole 21 are in close contact with each other, vibration energy directly acts on the protrusion 20 and the bottom surface 21a of the hole 21 to start melting of the resin there. Thereby, since vibration energy does not concentrate only on the electric wire contact surface 16 or only on the bottom surface 21a of the protrusion 20 and the hole 21, the insulation performance of the shielded electric wire 1 and the electric wire holding force are improved. We can work together.

  FIG. 6 shows a third embodiment of the present invention, and is a cross-sectional view showing a state in which the shielded electric wire 1 and the ground wire 2 are sandwiched between two resin members 3 and 3 when ultrasonically vibrating.

  As shown in FIG. 6, in the third embodiment, when the ultrasonic vibration is applied, both the wire contact surfaces 16 in a state where the shielded wire 1 and the ground wire 2 are sandwiched between the pair of upper and lower resin members 3 and 3. , 16 are in close contact with the shielded electric wire 1 and the ground wire 2, and the tip 20a of the projection 20 and the bottom 21a of the hole 21 are in close contact with each other. Is set to be in a separated state. Since other configurations are the same as those of the first embodiment, detailed description thereof is omitted.

  In this third embodiment, when ultrasonic vibration is started, vibration energy is dispersed by acting directly on the wire contact surfaces 16, 16, the protrusion 20, and the bottom surface 21 a of the hole 21 at the beginning of vibration, and resin When the melting progresses and the electric wire peripheral surfaces 17 and 17 are brought into close contact with each other, vibration energy directly acts between the electric wire peripheral surfaces 17 and 17 and the resin melting is started at that point. As described above, since vibration energy is not concentrated only on the wire contact surfaces 17 and 17 or only on the bottom surface 21a of the protrusion 20 and the hole 21, the insulation performance of the shielded wire 1 is improved and the wire holding force is improved. Improvements can be made together.

  In addition, according to each said embodiment, although the shield coating | coated member of the shielded electric wire 1 is formed of the braided wire 1c, what is necessary is just a conductive member which covers the outer periphery of the insulating endothelium 1b, 1b over almost the whole area, for example, You may form with a conductive metal foil. Moreover, although the case where the shielding process was performed about the shielded electric wire 1 which has the two twisted core wires 1a and 1a was demonstrated, even if the core wire 1a is a shielded electric wire which has one wire or more, two wires are twisted together. The present invention can be similarly applied even to a shielded electric wire having a non-core wire.

It is a disassembled perspective view which shows 1st Embodiment of this invention and demonstrates a shield processing method. 1 is a perspective view of a resin member according to a first embodiment of the present invention. It is sectional drawing which shows 1st Embodiment of this invention and shows the state which pinched | interposed the shield electric wire and the earth wire with two resin members in the case of ultrasonically exciting. 1 is a cross-sectional view of an ultrasonic welded portion, showing a first embodiment of the present invention. It is sectional drawing which shows 2nd Embodiment of this invention and shows the state which pinched | interposed the shield electric wire and the earth wire with two resin members in the case of ultrasonically exciting. It is sectional drawing which shows 3rd Embodiment of this invention and shows the state which pinched | interposed the shield electric wire and the earth wire with two resin members in the case of ultrasonically exciting. A prior art example is shown, (a) is a perspective view of the resin member arrange | positioned in an upper position, (b) is a perspective view of the resin member arrange | positioned in a lower position. It is a perspective view of the ultrasonic welding part which shows a prior art example. It is sectional drawing which shows a prior art example and follows the AA line in FIG. It is sectional drawing which shows a prior art example and follows the BB line in FIG. It is sectional drawing which shows a prior art example and shows the state which pinched | interposed the shield electric wire and the earth wire with the two resin members in ultrasonic vibration.

Explanation of symbols

1 Shielded wire 1a Core wire 1c Braided wire (shield covering member)
2 Ground wire 2a Core wire 3 Resin member 3a Joining surface 16 Electric wire contact surface 17 Electric wire peripheral surface 20 Projection portion 21 Hole 21a Bottom surface

Claims (4)

The shield wire and the ground wire covering the outer periphery of the core wire at the shield cover member sandwiched between two resin members, Rukoto the resin portion is melted by ultrasonic vibration while applying a compressive force between the two resin members in a said shielding cover member and the shield processing method of the shielded wire contact portions Ru is formed between the core wire of the ground wire of the shield wire,
Provided on the joint surfaces of the resin members is a semicircular groove-shaped arc surface for the shielded electric wire that contacts the shielded electric wire so as to extend in the axial direction of the shielded electric wire, and the arc surface for the grounded wire that contacts the grounded wire Is provided so as to extend in a crossing direction crossing the axial direction ,
As the arc surface for shielded electric wire of each resin member, the arc surface for shielded electric wire at both ends arranged at both ends in the axial direction and the arc surface for shielded electric wire at both ends at the central portion in the axial direction A central arcuate surface for the shielded electric wire,
A wire peripheral surface is provided at both ends in the intersecting direction of the arc surface for the shielded electric wire at the center of each resin member, and the resin flows into the cross direction outward of the wire peripheral surface as an arc surface for the ground wire of each resin member. An arc surface for grounding wires at both ends arranged via the recess is provided,
Providing a protrusion in the outer edge of the joint surface of one resin member of each resin member, and providing a hole into which the protrusion is inserted in the outer edge of the joint surface of the other resin member ;
When the shielded wire and the ground wire are sandwiched between the two resin members, the shielded wire arcuate surfaces at both ends of the two resin members, the shielded wire arcuate surface of the center of one resin member, and the other resin with a part of the central of the shielded wire for arc surface of the member is in close contact with the shielded electric wire, a ground wire for arc surface of the bi-side of the resin member, the center of the shield arcuate surface wires of the other side of the resin member one Is in close contact with the ground wire,
Any one or both of between the electric wire peripheral surface of the one resin member and the electric wire peripheral surface of the other resin member, and between the protrusion of the one resin member and the bottom surface of the hole of the other resin member shield processing method of the shielded wire but which is characterized in that so as to contact. A shield processing method for a shielded wire according to claim 1,
When the shielded electric wire and the ground wire are sandwiched between the two resin members, between the electric wire peripheral surface of the one resin member and the electric wire peripheral surface of the other resin member, and the protruding portion of the one resin member shield processing method of the shielded wire, characterized in that as a between the bottom of the hole of the other resin member are brought into close contact together with. A shield processing method for a shielded wire according to claim 1,
When the shielded electric wire and the ground wire are sandwiched between the two resin members, the electric wire peripheral surface of the one resin member and the electric wire peripheral surface of the other resin member are in close contact , and the one resin shield processing method of the shielded wire, wherein a between the bottom surface of the hole of the protruding portion and the other resin member member is so separated. A shield processing method for a shielded wire according to claim 1,
When the shielded wire and the ground wire are sandwiched between the two resin members, the wire peripheral surface of the one resin member and the wire peripheral surface of the other resin member are separated from each other , and the one resin shield processing method of the shielded wire, wherein a between the bottom surface of the hole of the protruding portion and the other resin member member is to be in close contact.

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