JP7763124B2 - Shielded wire terminal structure, wire with terminal, connector structure - Google Patents

Description

The present invention relates to the terminal structure of a shielded electric wire used, for example, in automobiles, an electric wire with a terminal, and a connector structure for the same.

Conventionally, shielded wires have been used in the electrical wires used in automotive wiring harnesses to reduce the impact of noise generated by the wires on the outside, and to reduce the impact of external noise on the wires.

One such shielded wire proposed is one in which a shielding layer made of braided wire is formed around an insulating coated wire, and an outer sheath is then formed around the shielding layer. When connecting a terminal or the like to the end of such a shielded wire to form a connector, it is necessary to form a terminal structure for grounding the shielding layer.

Figure 8 shows the process for forming a conventional terminal structure. First, as shown in Figures 8(a) and 8(b), a predetermined length of the outermost outer sheath 103 of the shielded electric wire 100 is cut and removed from the end, exposing the inner braided wire 105.

Next, as shown in Figure 8 (c), the braided wire 105 is cut to a predetermined length to expose the internal core portion 107. That is, a predetermined length of the braided wire 105 is exposed from the tip of the outer sheath 103, and a predetermined length of the core portion 107 is exposed from the tip of the braided wire 105. The core portion 107 is an electric wire whose conductor is covered with an insulating coating.

Next, as shown in Figure 8(d), a predetermined length of inner ferrule 109 is placed near the end of the outer jacket 103. The inner ferrule 109 is a ring-shaped metal member. After that, as shown in Figure 8(e), the braided wire 105 exposed from the outer jacket 103 is folded back toward the outer jacket 103 (the inner ferrule 109 side). This causes the inner ferrule 109 to be covered by the braided wire 105.

Finally, as shown in Figure 8 (f), the outer ferrule 113 is placed around the braided wire 105. The outer ferrule 113 is a metal annular member, like the inner ferrule 109, and has an inner diameter larger than the outer diameter of the inner ferrule 109. By compressing the outer ferrule 113 from the outside in this state, the braided wire 105 can be crimped while sandwiched between the inner ferrule 109 and the outer ferrule 113.

Then, a terminal is connected to the core portion 107 and housed in the connector body. At this time, the outer ferrule 113 is brought into contact with a metal member inside the connector body, and the metal member is connected to a ground wire, thereby grounding the shield layer of the shielded electric wire 100.

However, with this method, after exposing the braided wire 105, it is necessary to cut the braided wire 105 to a predetermined length. This increases the number of steps required. Furthermore, there is a risk of damaging the internal core portion 107 when cutting the braided wire 105. There is also a risk of contamination if cut pieces of the braided wire 105 get into other components. In contrast, if the braided wire 105 is folded back without being cut, the folded length of the braided wire 105 becomes longer, resulting in a larger terminal structure. Furthermore, if the cut length of the outer sheath 103 is shortened, the subsequent terminal connection work becomes difficult.

In response to this, a method has been proposed in which a slit is made in part of the outer sheath, the outer sheath is shifted toward the tip, and then returned to the rear without being completely removed, spreading the braided wire into a fan shape, and the spread braided wire is then placed over the inner ferrule, and the outer ferrule is then attached from above (Patent Document 1).

Japanese Patent Application Laid-Open No. 2001-257043

As mentioned above, the outer ferrule 113 is grounded by contacting a metal component inside the connector. However, in conventional methods, electrical continuity between the braided wire 105 and the outer ferrule 113 is established by contact between the braided wire 105 and the outer ferrule 113, while the inner ferrule 109 is not involved in the electrical continuity between the braided wire 105 and the metal component, and functions only as a crimping receiving member for the outer ferrule 113. As a result, the electrical connection between the braided wire 105 and the metal component is not sufficiently reliable, and there is a risk of increased ground resistance.

The present invention was made in consideration of these problems, and aims to provide a terminal structure for a shielded electric wire that is easy to manufacture and has a highly reliable electrical connection with the shield layer.

To achieve the above-mentioned objective, the first invention is a shielded electric wire terminal structure having a core portion where a conductor is insulated, a braided wire arranged around the core portion, and an outer sheath that covers the braided wire, wherein a predetermined length of the outer sheath is peeled off to expose the braided wire, which is then folded back in the direction opposite the end of the shielded electric wire, an inner ferrule is arranged around the braided wire, the braided wire is folded back again towards the end of the shielded electric wire so as to cover the outer periphery of the inner ferrule, and an outer ferrule is arranged around the braided wire, the inner ferrule and the outer ferrule are crimped together with the braided wire sandwiched between them, and one end of the inner ferrule has an expanded diameter and is in direct contact with the end of the outer ferrule.

The tip of the inner ferrule may have an insertion portion into which the end of the outer ferrule can be inserted, and the end of the outer ferrule may be inserted into the insertion portion.

The insertion portion may be formed so that the end of the inner ferrule is folded back toward the rear, leaving a gap, and the tip of the outer ferrule may have an outer shape that corresponds to the inner shape of the insertion portion, and the tip of the outer ferrule may be in surface contact with the inner surface of the insertion portion.

A recess or protrusion may be formed on the inner surface of the insertion portion, and a protrusion or recess that can mate with the recess or protrusion may be formed on the outer surface of the tip of the outer ferrule.

The outer ferrule and the inner ferrule may be crimped together at the insertion portion.

A portion of the inner ferrule may be exposed on the outer peripheral surface of the terminal structure.

According to the first invention, an inner ferrule is placed around the outer periphery of the portion where the braided wire is folded back, and the braided wire is then folded back forward again around its outer surface, thereby reducing the amount of work required to cut the braided wire without increasing the size of the terminal structure.

In addition, when the braided wire is sandwiched between the inner ferrule and the outer ferrule, the inner ferrule and the outer ferrule can also come into direct contact. As a result, when grounding the braided wire, not only the electrical continuity between the braided wire and the outer ferrule, as in the past, but also the electrical continuity between the braided wire and the inner ferrule can be utilized. This results in higher electrical connection reliability.

In addition, by forming an insertion portion at the tip of the inner ferrule into which the end of the outer ferrule can be inserted, and inserting the end of the outer ferrule into the insertion portion, the inner ferrule and outer ferrule can be more reliably brought into contact and electrically conductive.

In addition, by forming the insertion portion so that it folds back toward the rear of the inner ferrule with a gap, and by giving the tip of the outer ferrule an outer shape that corresponds to the inner shape of the insertion portion, it is possible to more reliably achieve surface contact between the inner ferrule and outer ferrule, thereby ensuring electrical continuity.

In addition, by forming a recess or protrusion on the inner surface of the insertion portion and forming a protrusion or recess on the outer surface of the tip of the outer ferrule that can mate with the recess or protrusion, the two can be mated when the outer ferrule is inserted into the insertion portion.

In addition, by exposing a portion of the inner ferrule on the outer surface of the crimping portion, the inner ferrule can come into direct contact with the metal member when inserted into the connector body.

The second invention is a terminal-attached electric wire having the terminal structure of the shielded electric wire according to the first invention, characterized in that a predetermined length of the insulating coating is stripped from the tip of the core portion, and the internal conductor is connected to the terminal.

The second invention makes it possible to obtain a terminal-attached electric wire that has high electrical connection reliability with the shielding layer.

The third invention is a connector structure in which the terminal-equipped electric wire according to the second invention is housed in a connector, characterized in that a metal member is disposed on the inner surface of the terminal insertion portion of the connector, and the braided wire and the metal member are electrically connected.

The metal member may contact the inner ferrule or the outer ferrule by spring force.

The third invention makes it possible to obtain a connector structure that also has high reliability in electrical connection with the shielding layer.

In particular, the inner ferrule or outer ferrule contacts the metal member using spring force, resulting in higher electrical connection reliability.

The present invention makes it possible to provide a terminal structure for a shielded electric wire that is easy to manufacture and has a highly reliable electrical connection with the shielding layer.

4A to 4C are diagrams showing the process of manufacturing a terminal structure using the shielded electric wire 1. 1A is a cross-sectional view of an electric wire terminal structure 20, and FIG. 1B is a cross-sectional view showing a connector structure 21 using the electric wire terminal structure 20. FIG. 1A is a diagram showing a process for forming an electric wire terminal structure using an inner ferrule 9a, and FIG. 1B is a cross-sectional view of an electric wire terminal structure 20a; 5A and 5B are diagrams showing a process for forming an electric wire terminal structure using an inner ferrule 9a and an outer ferrule 13a. 1A is a cross-sectional view of a wire terminal structure 20b, and FIG. 1B is a cross-sectional view showing a connector structure 21a using the wire terminal structure 20b. 6A and 6B are diagrams showing a process for forming an electric wire terminal structure using an inner ferrule 9b and an outer ferrule 13b. 1A is a cross-sectional view showing a connector structure 21b, and FIG. 1B is a cross-sectional view showing a connector structure 21c. 10A to 10C are diagrams showing the process of a conventional terminal structure using a shielded electric wire 100.

Embodiments of the present invention will now be described with reference to the drawings. Figure 1 illustrates the process of forming the terminal structure of a shielded electric wire 1. As shown in Figure 1(a), the shielded electric wire 1 is configured, in order from the center, with a core portion 7, a braided wire 5, and an outer sheath 3.

The core portion 7 is composed of a conductor wire covered with an insulating coating. A braided wire 5 is arranged around the outer periphery of the core portion 7 as a shielding layer. An outer jacket 3 is also arranged around the outer periphery of the braided wire 5 to cover the braided wire 5.

As shown in Figure 1(b), first, a predetermined length of the outer sheath 3 is peeled off and removed from the tip of the shielded wire 1 to expose the internal braided wire 5. Next, as shown in Figure 1(c), the exposed braided wire 5 is folded back in the opposite direction from the end of the shielded wire 1. In other words, the braided wire 5 is placed around the outer sheath 3. In this case, there is no need to cut the braided wire 5; roughly the entire length of the exposed braided wire 5 is folded back around the outer sheath 3.

Next, as shown in Figure 1(d), an inner ferrule 9 is placed around the braided wire 5. The inner ferrule 9 is a metallic tubular member with one end expanded to form an expanded diameter portion 11 with a relatively larger outer diameter than the other portions. In this case, the inner ferrule 9 is placed at the end of the braided wire 5 (the end where the braided wire 5 is folded back) with the expanded diameter portion 11 facing the tip of the shielded wire 1. The axial length of the inner ferrule 9 is less than half the length of the folded braided wire 5.

Next, as shown in Figure 1(e), the braided wire 5 is folded back again toward the end of the shielded wire 1. The folded back braided wire 5 covers the outer periphery of the inner ferrule 9. At this time, by folding back the braided wire 5 until the tip of the braided wire 5 touches the side of the expanded diameter portion 11, the folding position of the braided wire 5 can be determined. Furthermore, the expanded diameter portion 11 is not covered by the braided wire 5, and the expanded diameter portion 11 can be exposed from the braided wire 5.

Next, the outer ferrule 13 is placed around the folded-back braided wire 5. In other words, the braided wire 5 is sandwiched between the inner ferrule 9 and the outer ferrule 13. The outer ferrule 13 is previously inserted into the shielded wire 1 and retracted from the terminal structure. After the braided wire 5 is retracted, the outer ferrule 13 can be moved from its retracted position toward the tip of the shielded wire 1, thereby placing the outer ferrule 13 around the outer periphery of the inner ferrule 9 (braided wire 5).

In this case, if the outer diameter of the expanded diameter portion 11 of the inner ferrule 9 is larger than the inner diameter of the outer ferrule 13, the end face of the outer ferrule 13 can be positioned so that it abuts against the side of the expanded diameter portion 11 of the inner ferrule 9. This makes it easy to position the outer ferrule 13 and ensures direct contact between the outer ferrule 13 and the inner ferrule 9.

In this way, the braided wire 5 is sandwiched between the inner ferrule 9 and outer ferrule 13, and then compressed and crimped from the outer periphery of the outer ferrule 13, thereby forming the wire terminal structure.

Figure 2(a) is a cross-sectional view showing the resulting wire termination structure 20. The wire termination structure 20 is produced by removing a predetermined length of the outer jacket 3 from the tip of the shielded wire 1, folding the exposed braided wire 5 back once (toward the outer jacket 3), then folding it back around the outer periphery of the inner ferrule 9 and then back toward the tip (toward the exposed core portion 7). The outer ferrule 13 is then placed around the outer periphery of the inner ferrule 9, sandwiching the braided wire 5, and crimped. In this way, there is no need to cut the braided wire 5 when manufacturing the wire termination structure 20.

Furthermore, an electric wire with a terminal can be obtained by using the obtained electric wire terminal structure 20. First, a predetermined length of insulating coating is stripped from the tip of the core portion 7, exposing the internal conductor, which can then be crimped onto a crimp terminal to connect the terminal to the core portion 7.

Figure 2(b) is a cross-sectional view showing a connector structure 21 in which a terminal-attached electric wire having an electric wire termination structure 20 is housed in a connector 17. A metal member 19 is disposed on the inner surface of the terminal insertion portion of the connector 17. The metal member 19 is, for example, cylindrical, and has a shape that roughly corresponds to the external shape of the outer ferrule 13 after crimping.

The terminal 15 is located at the tip of the connector 17, and by inserting another terminal to be connected, the terminals can be electrically connected to each other. Meanwhile, inside the connector 17, the outer ferrule 13 comes into contact with the metal member 19, establishing electrical continuity. In other words, the braided wire 5 of the shielded wire 1 and the metal member 19 are electrically connected. The metal member 19 is connected to a grounding wire (not shown), allowing the shield layer (braided wire 5) of the shielded wire 1 to be grounded.

The expanded diameter height of the expanded diameter portion 11 of the inner ferrule 9 after crimping (the difference between the outer diameter of the expanded diameter portion 11 and the outer diameter of the portion other than the expanded diameter portion 11/2) can be made equal to the thickness of the outer ferrule 13. This allows both the expanded diameter portion 11 of the inner ferrule 9 and the outer surface of the outer ferrule 13 to come into direct contact with the metal member 19.

As described above, according to this embodiment, by folding the braided wire 5 twice, a compact wire terminal structure 20 can be formed without cutting the braided wire 5. Furthermore, by directly contacting the inner ferrule 9 and the outer ferrule 13, the reliability of the electrical connection can be improved. For example, in addition to the route from the braided wire 5 to the metal member 19 via the outer ferrule 13, it is also possible to provide electrical continuity from the braided wire 5 to the metal member 19 via the inner ferrule 9 and outer ferrule 13. While the inner ferrule 9 and outer ferrule 13 are described as being cylindrical metal members, their surfaces may also be plated.

Furthermore, by forming the expanded diameter portion 11 on the inner ferrule 9, it becomes easier to determine the folding position of the braided wire 5 and the positioning of the outer ferrule 13. In particular, since the inner ferrule 9 is covered by the braided wire 5, it is difficult to determine the position of the inner ferrule 9. However, because a portion of the inner ferrule 9 is exposed to the outside, it is possible to prevent the inner ferrule 9 and outer ferrule 13 from being misaligned when crimped.

Next, we will explain the second embodiment. Figure 3(a) is a diagram showing the process for forming an electric wire terminal structure using an inner ferrule 9a. In the following explanation, components that perform the same functions as those in the first embodiment will be assigned the same reference numerals as in Figures 1 and 2, and duplicate explanations will be omitted.

The second embodiment is substantially similar to the first embodiment, but differs in the shape of the expanded diameter portion 11 of the inner ferrule 9a. The expanded diameter portion 11 at the tip of the inner ferrule 9a is folded back toward the rear, forming an insertion portion 23 into which the end of the outer ferrule 13 can be inserted. In other words, the insertion portion 23 is formed so that the end of the inner ferrule 9a is folded back toward the rear, leaving a gap.

After folding the braided wire 5 back around the outer periphery of the inner ferrule 9a, the end of the outer ferrule 13 is inserted into the insertion portion 23, as shown in Figure 3(a). In this state, as shown in Figure 3(b), the outer periphery is compressed to crimp the outer ferrule 13 and inner ferrule 9a together. This completes the formation of the electric wire terminal structure 20a.

The second embodiment can achieve the same effects as the first embodiment. Furthermore, since the end of the inner ferrule 9a is formed with an insertion portion 23 into which the end of the outer ferrule 13 can be inserted, positioning the outer ferrule 13 is easy. Furthermore, by inserting the outer ferrule 13 into the insertion portion 23, the inner ferrule 9a and outer ferrule 13 can be brought into more reliable contact.

Furthermore, by forming the insertion portion 23, when the outer ferrule 13 and inner ferrule 9a are crimped together at the insertion portion 23, a portion of the inner ferrule 9a is exposed on the outer peripheral surface of the crimped portion. Therefore, as described above, when inserted into the connector 17, both the outer ferrule 13 and the inner ferrule 9 can come into contact with the metal member 19.

In addition, as long as the insertion portion 23 can accommodate the end of the outer ferrule 13, it is possible to form a groove for inserting the outer ferrule 13 on the side of the enlarged diameter portion 11 rather than forming the end of the inner ferrule 9a by folding it back.

Next, we will explain the third embodiment. Figure 4(a) is a diagram showing the process of forming an electric wire terminal structure using an inner ferrule 9a and an outer ferrule 13a. The third embodiment is substantially similar to the second embodiment, but the shape of the end of the outer ferrule 13a is different.

As mentioned above, the inner ferrule 9a has the expanded diameter portion 11 at its end folded back to form the insertion portion 23. Meanwhile, the tip of the outer ferrule 13 has an outer shape that corresponds to the internal shape of the insertion portion 23 of the inner ferrule 9a. In other words, the end of the outer ferrule 13a also has a shape folded back to the rear. More specifically, the ends of both the inner ferrule 9a and the outer ferrule 13a have tapered shapes such that the outer diameter gradually increases from the tip (i.e., the internal space gradually increases).

As shown in Figure 4(b), when the outer ferrule 13a is slid from the rear and positioned around the inner ferrule 9a (braided wire 5), the tip of the outer ferrule 13a is fully inserted into the insertion portion 23. At this time, the inner surface of the insertion portion 23 (inner ferrule 9a) and the outer surface of the outer ferrule 13a come into surface contact. This ensures reliable contact between the inner ferrule 9a and outer ferrule 13a, ensuring electrical continuity.

As shown in Figure 5(a), the wire terminal structure 20b can be obtained by crimping the inner ferrule 9a and the outer ferrule 13a together. In this case, as shown in the figure, the maximum outer diameter portion of the outer surface of the crimped portion may be only the inner ferrule 9a.

Figure 5(b) is a cross-sectional view showing a connector structure 21a using an electric wire terminal structure 20b. In this case, only the inner ferrule 9a comes into contact with the metal member 19.

The third embodiment can achieve the same effects as the second embodiment. Furthermore, by matching the end shape of the outer ferrule 13a to the end shape of the inner ferrule 9a, the inner ferrule 9a and outer ferrule 13a can be more reliably brought into contact with each other.

In addition, since the inner ferrule 9a contacts the braided wire 5 on both its inner and outer surfaces, direct contact of the inner ferrule 9a with the metal member 19 can be expected to provide higher connection reliability. As such, according to the first to third embodiments, contact with the metal member 19 may be via only the outer ferrule, only the inner ferrule, or both the inner ferrule and the outer ferrule.

In each of the above-described embodiments, the outer periphery of the outer ferrule is compressed and crimped at the end, but this is not necessarily required. Figure 6 shows the process for forming an electric wire terminal structure when, for example, an inner ferrule 9b and an outer ferrule 13b are used.

As shown in Figure 6(a), the inner ferrule 9b has substantially the same shape as the inner ferrule 9a, but the inner surface of the inner ferrule 9b (insertion portion 23) has a convex portion 25 that protrudes toward the inner surface. Meanwhile, the outer surface of the tip of the outer ferrule 13b has a concave portion 27 at a position corresponding to the convex portion 25.

As shown in Figure 6(b), when the end of the outer ferrule 13b is fully inserted into the insertion portion 23 of the inner ferrule 9b, the convex portion 25 and the concave portion 27 can be fitted together. By fitting the convex portion 25 and the concave portion 27 together in this way, the inner ferrule 9b and the outer ferrule 13b are fixed together.

In this embodiment, an example is described in which a convex portion 25 is formed on the inner surface of the inner ferrule 9b (insertion portion 23) and a concave portion 27 is formed on the outer surface of the tip of the outer ferrule 13a, but the convex portion 25 and the concave portion 27 may be reversed. That is, it is sufficient that a concave portion or a convex portion is formed on the inner surface of the inner ferrule 9b (insertion portion 23) and a convex portion or a concave portion that can mate with the concave portion or convex portion of the inner ferrule 9b is formed on the outer surface of the tip of the outer ferrule 13b.

As shown in Figure 7(a), by inserting the inner ferrule 9b into the connector 17 in this state without crimping, the outer surface of the inner ferrule 9b can come into contact with the metal member 19. At this time, a space is formed between the inner ferrule 9b and the outer ferrule 13b, allowing the inner ferrule 9b and the outer ferrule 13b to deform toward the center. Therefore, by making the outer diameter of the inner ferrule 9b on the outer periphery slightly larger than the inner diameter of the metal member 19, the inner ferrule 9b is pressed against the metal member 19 by spring force, bringing it into contact. This ensures reliable contact between the inner ferrule 9b and the metal member 19. In this way, by exposing at least a portion of the inner ferrule to the outer surface of the terminal structure, the inner ferrule can come into direct contact with the metal member 19.

The inner ferrule 9b and outer ferrule 13b may be crimped while retaining their spring force. For example, a spacer may be placed in the space at the end of the outer ferrule 13b before crimping, and the spacer may be removed after crimping.

As another method of using spring force to bring the inner ferrule (or outer ferrule) and metal member 19 into contact, a spring portion 29 may be provided on the metal member 19, as shown in Figure 7(b). The spring portion 29 is an elastically deformable portion that protrudes inward. By making the inner diameter of the spring portion 29 slightly smaller than the maximum outer diameter of the terminal structure, the spring portion 29 can be elastically deformed and pressed against the inner ferrule or outer ferrule when the terminal structure is inserted into the connector 17.

In this way, by forming a spring portion that can be contracted in diameter in the wire terminal structure or by forming a spring portion 29 that can be expanded in diameter in the metal member 19, the inner ferrule or outer ferrule can be brought into contact with the metal member 19 by spring force. This more reliably improves the reliability of the electrical connection between the metal member 19 and the braided wire 5.

Although an embodiment of the present invention has been described above with reference to the attached drawings, the technical scope of the present invention is not limited to the above-described embodiment. It is clear that a person skilled in the art could conceive of various modifications or alterations within the scope of the technical ideas set forth in the claims, and it is understood that these also naturally fall within the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1....Shielded electric wire 3...Outer sheath 5...Braided wire 7...Core portion 9, 9a, 9b...Inner ferrule 11...Expanded diameter portion 13, 13a, 13b...Outer ferrule 15...Terminal 17...Connector 19...Metal member 20, 20a, 20b...Wire terminal structure 21, 21a, 21b, 21c...Connector structure 23...Insertion portion 25...Convex portion 27...Concave portion 29...Spring portion 100...Shielded electric wire 103...Outer sheath 105...Braided wire 107...Core portion 109...Inner ferrule 113...Outer ferrule

Claims (9)

A terminal structure of a shielded electric wire having a core portion in which a conductor is insulated, a braided wire arranged on the outer periphery of the core portion, and an outer sheath that covers the outer periphery of the braided wire,
The braided wire is exposed by peeling off a predetermined length of the outer covering, and is folded back in a direction opposite to the end side of the shielded wire, and an inner ferrule is disposed around the braided wire,
the braided wire is folded back again toward the end of the shielded wire so as to cover the outer periphery of the inner ferrule, an outer ferrule is disposed around the outer periphery of the braided wire, and the inner ferrule and the outer ferrule are crimped together with the braided wire sandwiched therebetween,
1. A terminal structure for a shielded electric wire, wherein one end side of the inner ferrule is expanded in diameter and is in direct contact with the end side of the outer ferrule. The shielded wire termination structure of claim 1, characterized in that the tip of the inner ferrule has an insertion portion into which the end of the outer ferrule can be inserted, and the end of the outer ferrule is inserted into the insertion portion. the insertion portion is formed such that an end portion of the inner ferrule is folded back toward the rear side with a gap therebetween,
3. The shielded wire terminal structure according to claim 2, wherein the tip of the outer ferrule has an outer shape corresponding to the inner shape of the insertion portion, and the tip of the outer ferrule is in surface contact with the inner surface of the insertion portion. A recess or a protrusion is formed on the inner surface of the insertion portion,
4. The shielded wire terminal structure according to claim 3, wherein a convex or concave portion that can be fitted into the concave or convex portion is formed on the outer surface of the tip of the outer ferrule. The shielded wire terminal structure according to claim 3, characterized in that the outer ferrule and the inner ferrule are crimped together at the insertion portion. A shielded electric wire terminal structure according to any one of claims 3 to 5, characterized in that a portion of the inner ferrule is exposed on the outer peripheral surface of the terminal structure. A terminal-attached electric wire having the terminal structure of the shielded electric wire according to any one of claims 1 to 6,
A terminal-attached electric wire, characterized in that a predetermined length of the insulating coating is stripped from the tip of the core portion, and the conductor inside is connected to a terminal. A connector structure in which the terminal-attached electric wire according to claim 7 is accommodated in a connector,
a metal member is disposed on an inner surface of the terminal insertion portion of the connector;
A connector structure characterized in that the braided wire and the metal member are electrically connected. The connector structure of claim 8, characterized in that the metal member is in direct contact with the inner ferrule.