JP2006147223A - Terminal connection structure of shielded wire, shielded wire with terminal having the connection structure, and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shielded wire with a terminal and its manufacturing method having an excellent wire fixing force and electric connection with the rotation of the terminal restrained, when an outer conductor terminal is crimped in overlapping to the shielded wire of high-frequency correspondence. <P>SOLUTION: In pinching and adhering a peeled terminal of the shielded wire 10 with the outer conductor terminal 20 having a wire barrel and an insulation barrel, in a state that these two barrels 26, 28 are overlapped on each other to pinch the shielded wire, an overlapping way of crimping pieces 30a, 30b and 30c, 30d each making up a pair is such that the crimping pieces at reverse sides at the left and right of the outer conductor terminal 20 are laid on and overlapped with the wire barrel 26 and the insulation barrel 28, respectively. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a terminal connection structure of a shielded electric wire, a shielded electric wire with a terminal having the connection structure, and a manufacturing method thereof, and more specifically, when connecting an outer conductor terminal of a connector to a terminal portion of a shielded electric wire of a wire harness, TECHNICAL FIELD The present invention relates to a shield wire terminal connection structure suitable for improving the high frequency characteristics by preventing rotation of the shield, a shielded wire with a terminal having the connection structure, and a method for manufacturing the shield wire.

  2. Description of the Related Art In recent years, high performance and multi-functionalization have been rapidly advanced mainly in automobiles, office automation equipment, home appliances, etc., and electrical signals transmitted therewith have been speeded up (increased in frequency). In general, a shielded wire is used to transmit such a high-frequency electric signal. However, there is an increasing demand for high-frequency characteristics for terminals connected to the shielded wire.

  Conventionally, as such a terminal connection structure of a shielded electric wire, for example, those disclosed in Japanese Patent Application Laid-Open No. 2000-260540 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2000-323246 (Patent Document 2) are known. This is because the braided wire exposed by peeling off the insulation jacket of the end portion of the shielded electric wire is folded back to the jacket side, the exposed end of the insulating endothelium is further excised to expose the signal conductor, and the core wire While the inner conductor terminal of the connector is connected to the terminal, the braided wire folded back to the outer side of the shielded electric wire is crimped with a pair of crimping pieces of the wire barrel provided in the outer conductor terminal, and the pair of insulation barrels are further crimped. A crimping piece is used to crimp the insulating jacket side.

  The configuration according to the invention described in Patent Document 1 is designed such that the tip of the wire barrel and the insulation barrel included in the outer conductor terminal hits the wire just around the wire. For this reason, when the barrel length is short, the braided wire is not sufficiently crimped, and there is a risk of the braided wire protruding between the gaps at the tip of the barrel or short-circuiting due to wire breakage.

  Therefore, as in the invention described in Patent Document 2, overlap crimping is performed by increasing the lengths of the tip ends of the wire barrel and the insulation barrel. In this case, since the braided wire is largely wound at the time of crimping, the risk of crimping leakage is reduced, and the end of the barrel is not abutted. Also, even if the thickness of the coaxial line changes slightly, it can be handled by adjusting the crimping height (C / H) and crimping width (C / W) to adjust the wrap amount at the barrel tip, so it is somewhat wide. It is possible to cope with the size of the electric wire, reduce the types of terminals, and achieve a cost merit.

  However, the conventional overlap crimping has the following problems. FIG. 4 shows the structure. 4A shows a state before the outer conductor terminal 21 is crimped to the end of the shielded electric wire 10, and FIG. 4B shows a state after the crimping process. Here, an example of a coaxial wire suitable for transmission of a high-frequency electric signal is shown as the shielded electric wire 10.

  In the connector terminal connected to both ends of the shielded electric wire 10 for transmitting such a high-frequency signal, a rectangular tube in which the inner conductor terminal 33 is connected to the signal conductor 18 of the shielded electric wire 10 and both ends of the outer conductor terminal 21 are opened. Is accommodated in the fitting tube portion 23 having a shape via a dielectric 35. The braided wire (shield conductor) 14 of the shielded electric wire 10 is overlap-bonded by a pair of pressure-bonding pieces 30a and 30b of the wire barrel 26 extending to the fitting tube portion 23, and the insulation jacket of the shielded electric wire 10 is covered. The portion 12 is overlap-bonded by a pair of pressure-bonding pieces 30c, 30d of the insulation barrel 28.

  However, as shown in FIG. 4B, when the overlap crimping state of the wire barrel 26 and the insulation barrel 28 of the outer conductor terminal 21 is seen, it can be seen that both are overlapped in the same direction. That is, the crimping pieces 30a and 30c on one side of the outer conductor terminal 21 are superimposed on the lower side, and the other crimping pieces 30b and 30c are superimposed on the upper side.

  Such a conventional overlap crimp structure has the following problems. FIG. 5 is a cross-sectional view showing the process of overlapping the crimped shielded wire 10 by the wire barrel 26 and the insulation barrel 28 of the outer conductor terminal 21 (only the insulation barrel 28 is shown for convenience of drawing). In this case, as shown in FIG. 5 (a), the crimper 44 of the crimping mold is formed in a left-right asymmetric mold inner wall shape in which two ridges having different heights are connected. The timing at which each of the crimping pieces forming the bend is bent is shifted so that the collision of the tip end portion of the crimping piece is avoided to prevent a crimping failure (Patent Document 3).

  The crimper 41, which is a crimping die on the wire barrel 26 side, also has a left-right asymmetric mold inner wall surface shape in which two peaks having different heights are connected in the same manner as the crimping die on the insulation barrel 28 side. The inner wall surface shape of the crimpers 41 and 44 is larger (deeper) on the bending side of the crimping pieces 30b and 30d on the opposite side than the bending side of the crimping pieces 30a and 30c on the outer conductor terminal piece side. It is.

  When the crimpers 41 and 44 are lowered by such a mold structure, the wire barrel 26 and the insulation barrel 28 are sandwiched between the crimpers 41 and 44 and the anvils 42 and 46 to form a pair. The crimping pieces 30a, 30b and 30c, 30d begin to bend along the inner wall surfaces 70, 74 of the crimpers 41, 44 (substantially the same shape on the wire barrel side and the insulation barrel side), and FIG. As shown in FIG. 4, the shielded electric wire 10 is bent so as to be wrapped. Then, the crimping pieces 30a and 30c bent along the shallower mold inner wall surface 74 of the crimpers 41 and 44 wrap around under the opposite crimping pieces 30b and 30d, as shown in FIGS. As shown in the figure, the tips of the crimping pieces 30b and 30d on the left side in the figure are protruding portions 72 located at the boundary between the tips of the crimping pieces 30a and 30c bent from the right side and the inner wall surfaces 70 and 74 of the crimpers 40 and 44. Will be held down.

  At this time, since the outer conductor terminal 21 is not fixed, the crimping pieces 30b and 30d cannot bend to the right side beyond the projecting portion 72, and the left crimping pieces 30a and 30c that have started to be bent first. Only the bending proceeds, and it goes around to the lower side of the crimping pieces 30b and 30d. Then, the outer conductor terminal 21 is rotated in the direction indicated by the arrow 60 in FIG. 5 (d), and the wire barrel 26 is not shown, but the same bending process is followed, and the crimping piece 30a is crimped. It turns around the lower side of the piece 30b, bends, and similarly rotates in the direction indicated by the arrow 60 in FIG. Finally, as shown in FIGS. 5 (e) and 5 (f), the central axis of the shielded electric wire 10 and the central axis of the signal conductor are shifted in both the wire barrel 26 and the insulation barrel 28, and the signal conductor is lateral. There is a possibility that the signal conductor 18 may be disconnected due to a problem such as being pulled by the cable or twisting the shield electric wire.

  Conventionally, as shown in FIG. 6A, the terminal crimping apparatus has been provided with a terminal presser 50 for preventing terminal bend-up / down, etc. In the terminal having 23, the terminal could be fixed without difficulty by pressing the fitting tube portion. Therefore, even if the asymmetric crimpers 41 and 44 sandwich the wire barrel 26 and the insulation barrel 28, the terminals do not rotate, and the crimping pieces 30b and 30d bend to the right beyond the protrusion 72. The crimping pieces 30a and 30b, 30c and 30d overlapped each other evenly on the left and right sides, and good overlap crimping could be performed.

JP 2000-260540 A JP 2000-323246 A JP-A-3-165478

  However, in recent years, in order to cope with the higher frequency of the electric transmission signal, a cylindrical outer conductor terminal having a fitting tube portion is often used. In these cylindrical terminals, FIG. As shown in FIG. 2, the terminal rotation cannot be stopped even if the fitting cylindrical portion 22 of the outer conductor terminal is pressed by the terminal presser 52. Therefore, the terminal rotates as in the example shown in FIG. 6B, and it is difficult to apply a good overlap pressure bonding.

  In addition, it is difficult to inspect all the wire adhesion strength and electrical connection reliability after production, and the wire height is adjusted by adjusting the crimping height (C / H) and crimping width (C / W) during crimping in advance. Although the adhesive force, contact resistance, etc. are managed, if the terminal rotates during crimping, stable crimping cannot be performed and product performance cannot be guaranteed. Thus, if the terminal rotates during crimping, variations in the wire adhering force and electrical connection are likely to occur.

  The problem to be solved by the present invention is that the terminal connection structure is provided with a good wire adhering force and electrical connection, in which rotation of the terminal is suppressed when the outer conductor terminal is overlap-bonded to the shielded wire for high frequency. It is providing the shielded electric wire with a terminal which has these, and its manufacturing method.

  In order to solve the above-mentioned problems, according to a first aspect of the present invention, a signal conductor connected to an inner conductor terminal is covered with a shield conductor through an insulating inner sheath, and the outer periphery of the signal conductor is further insulated. In a shielded wire terminal structure in which an outer conductor terminal is connected to a terminal portion of a shielded wire covered by a cover, from a pair of crimping pieces that sandwich the exposed shield conductor of the shielded wire terminal on the outer conductor terminal A wire barrel and an insulation barrel composed of a pair of crimping pieces for sandwiching the jacket portion of the shielded electric wire, and the tip of the crimping piece forming the wire barrel pair, and the insulation The tip of each crimping piece forming a pair of barrels is one in which the other crimping piece overlaps with the other crimping piece and sandwiches the shielded electric wire. It is an essence that overlapping manner eggplant crimping piece in said wire barrel and said insulation barrel is a state where crimping pieces of the left and right opposite side overlaps become upward.

  A second aspect of the present invention is a shielded electric wire with a terminal having the above terminal connection structure.

  According to a third aspect of the present invention, there is provided a method of manufacturing a shielded electric wire with a terminal having the terminal connection structure, wherein the shield conductor is provided around the signal conductor connected to the inner conductor terminal via an insulating inner sheath. When the outer conductor terminal is connected to the end portion of the shielded electric wire that is covered and further covered with an insulating sheath, the shielded electric wire is exposed by a pair of crimping pieces of the wire barrel included in the outer conductive terminal. The shielded wire terminal is formed so that the shield conductor is overlapped and the pair of crimped pieces of the insulation barrel provided in the outer conductor terminal is overlapped in the opposite direction to the overlapping of the crimped pieces of the wire barrel. The gist of the invention is to apply pressure bonding to the outer cover of the outer cover.

  According to the terminal connection structure of the shielded electric wire according to claim 1, an insulation barrel for clamping the overlap crimped state at the tip of the barrel of the wire barrel for sandwiching the shield conductor of the shielded wire and a portion of the insulation jacket Since the crimping piece on the opposite side of the barrel tip is overlapped with the crimping piece on the opposite side, the rotation and insulation applied to the wire barrel when crimping the outer conductor terminal to the shielded wire The rotation applied to the barrel is offset in the opposite direction, and the rotation applied to the entire terminal can be suppressed. Therefore, the central axis of the terminal and the central axis of the electric wire are not shifted, and there is no problem that the signal conductor is disconnected due to the signal conductor being pulled sideways or the shielded electric wire being twisted. Thus, it is possible to obtain a shield wire terminal connection structure that is subjected to excellent overlap crimping.

  Moreover, according to the shielded electric wire with a terminal having such a terminal connection structure of the shielded electric wire, particularly in the terminal corresponding to the transmission of the high frequency signal in which the fitting cylindrical portion of the outer conductor terminal is a cylindrical shape, Since the rotation applied to the outer conductor terminal can be suppressed, a good electrical connection state can be obtained. Therefore, it is suitably used for high-frequency signal transmission, for example, in car navigation systems for automobile wire harnesses.

  Further, according to the method for manufacturing a shielded electric wire with a terminal according to the present invention, when the outer conductor terminal is connected to the shielded electric wire, the wire barrel and the insulation barrel included in the outer conductor terminal are oppositely overlapped with each other. Since the respective terminals are overlap-bonded to each other, the rotation of the terminals can be effectively suppressed. Therefore, it is suitable for the connection of the outer conductor terminal provided with the cylindrical fitting tube portion corresponding to the high frequency, which has been difficult to perform the overlap crimping until now, and the outer conductor terminal is crimped to the shielded electric wire. It is possible to prevent inadvertent degradation of electrical performance due to problems such as sometimes twisting the shield wire due to rotation of the terminal, disconnecting the signal conductor, shifting from the center of the crimping surface, or being pulled. There is an effect.

  Hereinafter, a shielded electric wire with a terminal according to an embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1A shows a state before the outer conductor terminal 20 is crimped to the end of the shielded electric wire 10. FIG. 1B shows a state after the crimping process.

  In the terminal connection structure of the shielded electric wire 10 shown in FIG. 1, the shielded electric wire 10 is provided with an insulating inner sheath 16 around a signal conductor 18 in which a plurality of metal wires are twisted and bundled as a transmission path for an electric signal or the like. Similarly, a shield conductor 14 made of a braided wire made by braiding a plurality of strands is covered, and the outer periphery of the shield conductor 14 is covered with an insulating sheath 12, so that the shield conductor 14 is connected to the signal conductor 18. By covering the outer periphery without gaps, it is suitable for transmission of high-frequency electrical signals. Then, at the tip, the outer cover 12 and the insulating inner cover 16 are peeled off by a predetermined length to expose the signal conductor 18 and the shield conductor 14. An inner conductor terminal 32 is connected to the signal conductor 18 and is inserted into the cylindrical fitting tube portion 22 of the outer conductor terminal 20.

  The outer conductor terminal 20 is formed by punching a conductive plate and then formed by bending such as pressing, and a fitting cylinder portion 22 formed in a cylindrical shape opened in front and rear, and a rear of the fitting cylinder portion 22. A crimping piece 30a, 30b for sandwiching the shield conductor 14 of the shielded electric wire 10 at the end and a wire barrel 26 formed so as to protrude upward, and a jacket 12 of the shield conductor 10 at the rear end thereof An insulation barrel 28 is formed in which the crimping pieces 30c and 30d to be attached are also formed so as to protrude upward.

  On the wire barrel 26 and the insulation barrel 28, the shielded electric wire 10, which is peeled for a predetermined length and is connected to the signal conductor 18 with the inner conductor terminal 32, is placed. A crimper 40 is disposed above the wire barrel 26 and the shielded electric wire 10 placed thereon, and an anvil 42 is disposed below the wire barrel 26. The insulation barrel 28 and the shield placed thereon are disposed. A crimper 44 is disposed above the electric wire 10, and an anvil 46 is disposed below the wire barrel 28. The crimping pieces 30a and 30b forming a pair of wire barrels are crimped and connected to the shield conductor 14 of the peeled shield electric wire 10, and the crimping pieces 30c and 30d forming a pair of the insulation barrel 28 are crimped to the outer cover 12. .

  2A shows the shape of the wire barrel crimper 40 and the anvil 42, and FIG. 2B shows the shape of the insulation barrel crimper 44 and the anvil 46 as viewed from the fitting surface side of the outer conductor terminal. FIG. 2A and FIG. 2B are similar and formed in a horizontally reversed shape. These crimpers 40 and 44 are formed in an asymmetric mold inner wall surface shape in which two peaks having different heights are connected. In the crimper 40, a shallow recess 76 on the left and a protrusion connecting two recesses near the center. A deep recess 80 is formed on the right side of the portion 78. On the other hand, in the crimper 44, a deep recess 70 is formed on the left, a projecting portion 72 connecting two recesses near the center, and a shallow recess 74 is formed on the right. Thus, the timing at which each of the crimping pieces 30a, 30b and 30c, 30d forming the left and right pairs is bent is prevented from colliding with the tips of the crimping pieces that are paired at the time of the crimping process, thereby causing poor crimping.

  FIG. 3 shows the barrel press-bonding process by the metal mold | die of the shielded electric wire with a terminal of this invention later on. As shown in FIG. 3A, a crimper 40 is disposed above the wire barrel 26 and the shielded electric wire 10 placed thereon, and an anvil 42 is disposed below the wire barrel 28. A crimper 44 is disposed above the shielded electric wire 10 placed thereon, and an anvil 46 is disposed below the insulation barrel 28.

  At the time of crimping, the wire barrel crimper 44 descends from above the wire barrel 26 and the shielded electric wire 10 placed thereon, and first, on the mold inner wall surface 76 of the shallower recess of the crimper 44, The left pressure contact piece 30b comes into contact and begins to bend inward along the inner wall surface 76 of the mold. On the other hand, from the upper side of the insulation barrel 28 and the shielded electric wire 10 placed thereon, the crimper 44 for the insulation barrel descends, and is first placed on the mold inner wall surface 74 of the shallower recess of the crimper 44 on the right side in the figure. The crimping piece 30c comes into contact and begins to bend inward along the inner wall surface 74 of the mold.

  Furthermore, the crimper 40 continues to descend, and the crimping piece 30a on the right side comes into contact with the deeper inner wall surface 80 of the crimper 40, and the crimping piece 30a is also inward along the inner wall surface 80 of the mold. Begin to bend. On the other hand, on the insulation barrel side, the crimper 44 continues to descend, and the left crimping piece 30d comes into contact with the deeper mold inner wall surface 70 of the crimper 44. Begin to bend.

  An anvil 42 disposed under the wire barrel and an anvil 46 disposed under the insulation barrel are provided between the wire barrel 26 and the insulation barrel 28 and the crimper 40, 44. The placed shielded electric wire 10 is sandwiched. As shown in FIG. 3B, the tips of the crimping pieces 30a, 30b and 30c, 30d reach the projecting portions 72, 78 near the center axis of the crimper, and wrap the shielded wires.

  As shown in FIG. 3 (c), the tip of the left crimping piece 30 b that has begun to be bent first on the wire barrel side is guided by a projecting portion 78 near the center of the crimper 40 and guided downward. Furthermore, the tip of the right crimping piece 30a that has begun to bend is bent so as to overlap the left crimping piece 30b. Similarly, on the insulation barrel side, the tip of the right crimping piece 30c that has started bending is guided by the protrusion 72 near the center of the crimper 44 and guided downward, and the left crimping that has begun to bend later. The tip of the piece 30d is bent so as to overlap the right pressure-bonding piece 30c. Further, the crimpers 40 and 44 continue to descend, and the bending progresses without the tips of the crimping pieces 30a, 30b and 30c, 30d reaching the projecting portions 72, 78 near the centers of the respective crimpers colliding with each other.

  Here, on the wire barrel side, the crimping piece 30b bent along the shallower mold inner wall surface 76 of the crimper 40 wraps under the crimping piece 30a on the opposite side, and FIGS. ), The tip of the crimping piece 30a on the right side in the drawing is sandwiched and pressed between the tip of the crimping piece 30b bent from the left side and the protruding portion 78 of the crimper 40. At this time, the tip of the crimping piece 30a is pushed in the direction indicated by the arrow 62 in FIG. On the other hand, on the insulation barrel side, the crimping piece 30c bent along the shallower mold inner wall surface 74 of the crimper 44 wraps around under the opposite crimping piece 30d, and the crimping piece 30d on the left side in the figure The tip is sandwiched and pressed between the tip of the crimping piece 30 c bent from the right side and the protruding portion 72 of the crimper 44. Here, the tip of the crimping piece 30d is pushed in the direction opposite to the wire barrel side, that is, in the direction indicated by the arrow 64 in FIG.

  Thus, since the outer conductor terminal 20 is pushed in the opposite direction on the wire barrel side and the insulation barrel side, the forces applied to the wire barrel side and the insulation barrel side are offset and as a result, the outer conductor terminal 20 does not rotate. Therefore, the crimp piece 30a of the wire barrel and the crimp piece 30c of the insulation barrel are bent to the left side beyond the protruding portions 72 and 78 of the crimpers 40 and 44, and the crimped pieces 30b and 30d exceed the protruding portion 72 of the crimper 44. And bend to the right.

  The crimpers 40 and 44 continue to descend further, and as shown in FIG. 3 (d), on the wire barrel side, the tip of the left crimping piece 30b is below the right crimping piece 30a and the tip of the right crimping piece 30a. Are overlapped evenly from both the left and right sides above the left crimping piece 30b. On the other hand, on the insulation barrel side, the tip of the right crimping piece 30c is below the left crimping piece 30d, and the tip of the left crimping piece 30d is above the right crimping piece 30c. As shown in Fig. 3 (e), the crimping pieces are bent evenly on the left and right to obtain a good crimped state with no deviation between the center of the shielded wire and the signal conductor. Can do.

  As described above, according to the present invention, the outer conductor terminal 20 is crimped to the shielded electric wire 10 so that the crimping pieces overlap in the left and right directions by the wire barrel 26 and the insulation barrel 28 provided at the front and back. For example, in the example shown in FIG. 3, the insulation barrel 28 is overlap-bonded with the left pressure-bonding piece 30 d overlapping the right-side pressure-bonding piece 30 c. At the same time, the wire barrel is overlap-bonded with the right crimping piece 30a overlapping the left crimping piece 30b. At this time, rotation occurs clockwise in the insulation barrel 28 and counterclockwise in the wire barrel 26, but the two rotations are in opposite directions. Therefore, the clockwise and counterclockwise rotations are offset, and the outer conductor terminal 20 is prevented from rotating as a whole, and good crimping as shown in FIG.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. For example, in the above-described embodiment, the case where the crimping piece on the right side of the wire barrel is on the upper side and the crimping piece on the left side of the insulation barrel is on the upper side has been described. Needless to say, it doesn't matter at all.

  Moreover, although the example of the coaxial line was given and demonstrated to the shield electric wire, it is applicable also to another shield electric wire. In addition, it can be applied if the terminal connected to the electric wire has two or more pairs of crimping pieces before and after. Is possible.

  Since the shielded electric wire with a terminal according to the present invention is suitable for transmission of a high frequency signal and has a strong adhering force between the terminal and the electric wire and high reliability of electrical connection, for example, a connector member for an automobile wire harness and its It can utilize suitably for manufacture etc.

The terminal connection structure of the shielded electric wire with a terminal concerning the embodiment of the present invention is shown, (a) shows the state before connection and (b) shows the state after terminal connection. It is the figure which showed the cross-sectional shape of the crimper and anvil of the metal mold | die for crimping | bonding the outer conductor terminal of FIG. It is the figure which showed the crimping | compression-bonding process of the wire barrel and insulation barrel of the shielded electric wire with a terminal which concerns on embodiment of this invention. The state before terminal connection of the conventional shielded electric wire with terminal is shown in (a), and after terminal connection is shown in (b). It is the figure which showed the crimping | compression-bonding process of the insulation barrel of the conventional shielded electric wire with a terminal. It is the figure which showed the terminal holding | suppressing at the time of terminal connection processing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Shield electric wire 20 Outer conductor terminal 22 Fitting cylinder part 26 Wire barrel 28 Insulation barrel 40 Wire barrel crimper 42 Wire barrel anvil 44 Insulation crimper 46 Insulation anvil

Claims (3)

The signal conductor connected to the inner conductor terminal is covered with a shield conductor via an insulating inner jacket, and the outer conductor terminal is connected to the end of the shielded wire whose outer periphery is covered with an insulating jacket. In the terminal connection structure of the shielded cable
A wire barrel comprising a pair of crimping pieces for sandwiching the shield conductor exposed from the shielded wire terminal to the outer conductor terminal, and an insulation barrel comprising the same pair of crimping pieces for sandwiching the jacket portion of the shielded wire And is formed back and forth,
The tip of the crimping piece forming the pair of wire barrels and the tip of the crimping piece forming the pair of insulation barrels both overlap the one crimping piece with the other crimping piece sandwiching the shield wire. The pair of crimping pieces that are paired with each other are characterized in that the crimping pieces on the opposite sides of the wire barrel and the insulation barrel are in an overlapping state. Terminal connection structure of shielded wire.     The shielded electric wire with a terminal which has the terminal connection structure of the said Claim 1. The signal conductor connected to the inner conductor terminal is covered with a shield conductor via an insulating inner jacket, and the outer conductor terminal is connected to the end of the shielded cable whose outer periphery is covered with an insulating jacket. In doing so, the shield conductor exposed from the shielded electric wire is overlap-bonded by a pair of crimping pieces of the wire barrel provided in the outer conductor terminal, and the pair of crimping pieces of the insulation barrel provided in the outer conductor terminal is the above-described A method for producing a shielded electric wire with a terminal, wherein the outer sheath of the shielded electric wire terminal is subjected to overlap pressure bonding so as to be opposite to the method of overlapping the crimping pieces of the wire barrel.

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