JP2010198979A - Conductor connecting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conductor connecting structure that achieves downsizing of a connecting site of conductors, as well as reduction of the number of components, and with speed of wear restrained of a contact part between conductors accompanying their insertion and removal. <P>SOLUTION: In the conductor connecting structure for connecting to a male terminal member a cable 6 consisting of a twisted-wire conductor 3 configured by twisting a plurality of strand conductors 2 and an insulating layer 4 formed at an outer periphery of the twisted-wire conductor 3, a protruded part 7 is formed by making the twisted-wire conductor 3 at an end part of the cable 6 protruded from the insulating layer 4, and at the same time, the protruded part 7 is made hollow by being expanded from the center of the end part, and has a cylindrical female terminal 5 formed for the male terminal member to be inserted into the protruded part 7. Further, at an outer periphery of the female terminal 5, a fastening member 8 is slidably provided for fastening the male terminal member by clamping the female terminal 5 at its connection with the male terminal member. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  In particular, the present invention relates to a conductor connection structure, which is a technology that is highly likely to be adopted in a hybrid vehicle, an electric vehicle, and the like.

  Conventionally, as a conductor connection structure for electrically connecting the conductors of a cable (insulated cable), for example, a male terminal is provided at the end of one cable and a female terminal is provided on the other cable, and they are fitted together. A terminal connection method for electrically connecting conductors to each other is known.

  In addition, for example, as a conductor connection structure used for a connection portion of a large-capacity cable such as a power cable (power cable), a socket terminal serving as a female terminal is provided at the end of the cable, and the socket terminal serves as a male terminal. A terminal connection method for fitting a pin terminal is known (for example, see Patent Documents 1 to 3).

JP 2008-103152 A JP 2008-103153 A JP 2008-123997 A

  However, in the above-described conventional conductor connection structure, that is, the terminal connection method, there is a problem that the fitting portion between the male terminal and the female terminal tends to be larger than the outer diameter of the cable. For this reason, the connection location is increased in size, and it is difficult to reduce the size of the connection location, particularly at locations where a plurality of cables are connected to other cables (or pin terminals).

  Furthermore, since it is necessary to connect a terminal to the conductor of a cable, there also exists a problem that a number of parts will increase.

  In addition, for example, in a connection portion of a cable used in a vibration-prone environment such as a hybrid vehicle or an electric vehicle, it is necessary to eliminate the influence of the vibration on the connection portion. As a countermeasure against such vibration, it is conceivable to provide a spring on the outer periphery of the female terminal to firmly fix the female terminal and the male terminal.

  However, when the spring is strengthened as a countermeasure against vibration, there has been a problem that the wear rate of the contact portion accompanying the insertion / extraction of the terminal is increased.

  Therefore, the object of the present invention is to solve the above-mentioned problems, to reduce the size of the connection portion between the conductors, to reduce the number of parts, and to suppress the wear rate of the contact portion between the conductors due to insertion / extraction. It is to provide a conductor connection structure.

  The present invention was devised to achieve the above object, and a cable comprising a stranded conductor formed by twisting a plurality of strand conductors and an insulating layer formed on the outer periphery of the stranded conductor is provided as a male terminal. In the conductor connection structure for connecting to the member, the stranded wire conductor at the end of the cable is protruded from the insulating layer to form a protrusion, and is expanded from the end center of the protrusion to be hollow, A cylindrical female terminal for inserting the male terminal member is formed in the protruding portion, and the female terminal is fastened to the outer periphery of the female terminal when connected to the male terminal member, thereby fastening the male terminal member It is the conductor connection structure which provided the fastening member slidably.

  The female terminal includes a cylindrical portion formed by expanding the stranded wire conductor at the end of the protruding portion into a cylindrical shape, and forming a plurality of slits along the axial direction in the cylindrical portion. May be divided in the circumferential direction.

  The slits may be formed to evenly divide the cylindrical portion evenly in the circumferential direction.

  The tube portion of the female terminal may be formed in a divergent shape toward its end portion.

  The fastening member may be formed in a tapered shape whose inner wall extends toward the end of the female terminal.

  The female terminal has a female terminal molding machine disposed around the protruding portion, and a pushing member having a protruding portion with a sharp tip is pushed into an end portion of the protruding portion, and a plurality of wire conductors of the protruding portion May be formed by press molding between the female terminal molding device and the pushing member.

  The cylindrical portion of the female terminal may be formed in a divergent shape by expanding its end portion outward after the pressure molding.

  The female terminal may be formed by spreading a plurality of wire conductors of the protruding portion from the inside and press-molding, and then attaching a conductive metal.

  The female terminal may be formed by attaching a conductive metal to the plurality of strand conductors at the ends of the stranded conductor, and then expanding the plurality of strand conductors from the inside and performing pressure molding.

  The fastening member may be made of the same material as the stranded wire conductor or stainless steel.

  The male terminal member may be a pin terminal.

  The male terminal member is a cable composed of a stranded conductor formed by twisting a plurality of strand conductors and an insulating layer formed on the outer periphery of the stranded conductor, and the stranded conductor at the end of the cable is an insulating layer. The projecting portion may be formed by projecting from the end, and the end portion of the projecting portion may be compressed to reduce the diameter, and the projecting portion may be formed with a male terminal that fits into the female terminal.

  According to the present invention, the connection location between conductors can be reduced in size, the number of parts can be reduced, and the wear rate of contact portions between conductors accompanying insertion / extraction can be suppressed.

(A) is a front view of the female terminal shape cable used for the conductor connection structure concerning one embodiment of the present invention, (b) is the side end view, and (c) is the side end view of the male terminal shape cable. (D) is a front view thereof, (e) is a side end view of the pin terminal, and (f) is a front view thereof. (A)-(c) is a figure explaining the manufacturing method of the female terminal shape cable of Fig.1 (a). It is a figure which shows the pushing member used when manufacturing a female terminal shape cable, (a) is a longitudinal cross-sectional view, (b) is the 3B-3B sectional view taken on the line. It is a figure explaining the conductor connection structure which concerns on one Embodiment of this invention, (a) is the front view before fastening, (b) is the longitudinal cross-sectional view. It is a figure explaining the conductor connection structure which concerns on one Embodiment of this invention, (a) is the front view after fastening, (b) is the longitudinal cross-sectional view. It is a front view of the female terminal shape cable used for the conductor connection structure concerning one embodiment of the present invention. It is a front view of the female terminal shape cable used for the conductor connection structure concerning one embodiment of the present invention.

  Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

  The conductor connection structure of the present invention is a structure for connecting a cable to a male terminal member (another cable or pin terminal). For example, in a connector of a large current wire harness used in a hybrid vehicle, an electric vehicle, or the like. The structure used.

  Fig.1 (a) is a front view of the female terminal shape cable used for the conductor connection structure which concerns on this embodiment, FIG.1 (b) is the side end elevation.

  As shown in FIGS. 1 (a) and 1 (b), a female terminal-shaped cable 1 has a female terminal 5 integrally formed at the end of a cable 6, and a slidable fastening member (spring) on the outer periphery of the female terminal 5. ) 8 is provided.

  The cable 6 includes a stranded wire conductor 3 formed by twisting a plurality of strand conductors 2 and an insulating layer 4 formed on the outer periphery of the stranded wire conductor 3.

  As the stranded conductor 3 of the cable 6, it is desirable to use a twisted strand conductor 2, and at least 20 strands, preferably 50 strand twisted strand conductors 2 are used. Good. As the strand conductor 2, for example, a conductor having an outer diameter of about 0.1 to 1.0 mm may be used. The outer diameter of the stranded wire conductor 3 is, for example, 4.0 to 10 mm, and desirably has rigidity as a whole.

  The strand conductor 2 is made of copper, copper alloy, aluminum, aluminum alloy, etc., and the insulating layer 4 is made of rubber material or plastic material. In FIGS. 1A and 1B, the insulating layer 4 is a single layer, but a multilayer structure may be used.

  The female terminal 5 is for inserting and fitting a male terminal member, which will be described later. The female terminal 5 is a part of the tip side of the protruding portion 7 and the diameter of the stranded conductor 3 at the end of the protruding portion 7 is increased. The diameter of the cylindrical portion 5a is gradually increased from the proximal end portion 7a between the cylindrical portion 5a and the proximal end portion 7a of the protruding portion 7 which is the boundary between the protruding portion 7 and the insulating layer 4 and the cylindrical portion 5a. And a tapered base portion 5c. At the end of the female terminal 5, a hollow portion 5b surrounded by the cylindrical portion 5a is formed. Moreover, the cylinder part 5a of the female terminal 5 is formed in the shape which spreads toward the end part.

  A plurality of slits 9 are formed in the cylindrical portion 5a of the female terminal 5 along the axial direction, and the cylindrical portion 5a is divided in the circumferential direction.

  The slits 9 are preferably formed so as to evenly divide the cylindrical portion 5a evenly in the circumferential direction. By configuring in this way, each inner surface of the divided cylindrical portion 5a is arranged at a position on the straight line across the male terminal member (hollow portion 5b). The terminal member can be firmly fitted. In addition, since the slit 42 is also disposed at a position opposite to the straight line across the male terminal member (hollow portion 5b), for example, the male terminal member is fitted into the slit 42, and the shape of the female terminal 5 Can be prevented from being deformed.

  A fastening member 8 is slidably provided on the outer periphery of the female terminal 5. The fastening member 8 is used to fasten the female terminal 5 and fasten the male terminal member when connecting the female terminal 5 and the male terminal member, and is formed in a ring shape or a C shape in a cross-sectional view. The In the present embodiment, a case where a ring-shaped fastening member 8 is used will be described. The inner wall (inner peripheral surface) 8 a of the fastening member 8 is formed in a tapered shape that expands toward the end of the female terminal 5.

  As the fastening member 8, it is desirable to use a material having high electrical conductivity (conductivity). However, in order to prevent contact corrosion of different metals, when the stranded wire conductor 3 is made of copper or copper alloy, copper or copper alloy, stranded wire is used. When the conductor 3 is made of aluminum or an aluminum alloy, it is preferable to use aluminum or an aluminum alloy and the same material as the stranded wire conductor 3.

  In addition, when applied to an environment with a large amount of heat generated, such as a cable for a large current, there is a concern that the spring force may be weakened due to thermal stress relaxation and the contact resistance may be increased. When using the fastening member 8 in a shape, it is preferable to use an iron-based alloy having a spring property such as stainless steel from the viewpoint of maintaining the spring property for a long time. As described above, the material used for the fastening member 8 may be appropriately determined according to the intended use, the material of the stranded wire conductor 3, and the like.

  When manufacturing the female terminal-shaped cable 1, as shown in FIG. 2A, first, the stranded wire conductor 3 at the end of the cable 6 is protruded from the insulating layer 4 to form the protruding portion 7, and the protruding portion A female terminal molding device 21 is disposed around the portion 7. At this time, the fastening member 8 may be passed through the protruding portion 7 in advance. The length of the stranded wire conductor 3 protruding from the end of the cable 6 (the length of the protruding portion 7) is, for example, 15 to 20 mm.

  The female terminal molding machine 21 is formed with a female terminal molding hole 21a having a substantially constant inner diameter, and the protruding portion 7 is disposed in the female terminal molding hole 21a.

  Thereafter, as shown in FIG. 2 (b), the pushing member 22 having a protruding portion 22a having a sharp tip is pushed into the end portion of the projecting portion 7, and is expanded from the end center of the projecting portion 7 to be hollow, The female terminal molding machine 21 and the pushing member 22 are pressed and molded to form the female terminal 5 including the hollow portion 5 b in the protruding portion 7. The protrusion 22a of the push-in member 22 is formed to be equal to or slightly smaller than the outer diameter of the male terminal member described later (the outer diameter of the portion inserted and fitted into the hollow portion 5b).

  As shown in FIGS. 3A and 3B, slit forming protrusions 22 b are formed along the axial direction on the outer periphery of the protrusion 22 a of the push-in member 22, and the stranded wire conductor 3 is pressure-molded. When the female terminal 5 is formed, the slit 9 is also formed at the same time. The stranded wire conductor 3 is formed by twisting a plurality of strand conductors 2, but the protruding portion of the stranded wire conductor 3 is almost straight because it is short, and the pushing member 22 having the slit-forming projections 22 b is formed. It is possible to mold the slit 9 by inserting.

  Then, as shown in FIG.2 (c), the female terminal molding device 21 and the pushing member 22 are removed, and the edge part of the cylinder part 5a is expanded outside. As a result, the slit 9 expands, and the end of the cylindrical portion 5a is formed in a divergent shape. The outer diameter of the cylindrical portion 5a before being processed into a divergent shape is, for example, φ10 mm, the inner diameter is, for example, φ5 mm, and the axial length (fitting length) of the hollow portion 5b is, for example, 10 mm.

  As described above, the female terminal shaped cable 1 shown in FIGS. 1A and 1B is obtained. Here, the case where the end portion of the cylindrical portion 5a is expanded outward after pressure molding has been described, but it is also possible to mold the end portion of the cylindrical portion 5a into a divergent shape when the female terminal 5 is pressure molded.

  Further, a conductive metal may be attached to the female terminal 5 in order to reinforce the mechanical strength of the female terminal 5. The conductive metal to be deposited includes nickel, nickel alloy, silver, silver alloy, tin, tin alloy (eg, solder), gold, gold alloy, platinum, platinum alloy, copper, copper alloy, aluminum, aluminum alloy, Examples include zinc and zinc alloys.

  When the conductive metal is attached to the female terminal 5, after the female terminal 5 is pressure-molded, the female terminal 5 is immersed in a molten metal in which the conductive metal is melted in a state where the pushing member 22 is pushed. And then, the end of the cylindrical part 5a may be expanded. Here, the case where the conductive metal is adhered after the female terminal 5 is formed has been described. However, the conductive metal is first adhered to the stranded wire conductor 3 of the protruding portion 7, and then the female terminal is formed by pressure molding. 5 may be formed.

  As the male terminal member connected to the female terminal 5 of the female terminal-shaped cable 1 in FIGS. 1A and 1B, the male terminal-shaped cable 10 shown in FIGS. 1C and 1D and FIG. The pin terminals 15 shown in e) and (f) are used.

  A male terminal-shaped cable 10 shown in FIGS. 1C and 1D includes a stranded wire conductor 3 formed by twisting a plurality of strand conductors 2 and an insulating layer 4 formed on the outer periphery of the stranded wire conductor 3. In the cable 6, the male terminal 11 is formed by molding the stranded conductor 3 at the end of the cable 6. Here, although the case where the same thing as the female terminal shape cable 1 is used as the cable 6 used for the male terminal shape cable 10, a dimension etc. may differ.

  The male terminal 11 is formed by projecting the stranded wire conductor 3 at the end of the cable 6 from the insulating layer 4 to form the projecting portion 7 and compressing the end of the projecting portion 7 to reduce the diameter. The length of the stranded wire conductor 3 protruding from the end of the cable 6 (the length of the protruding portion 7) is, for example, 15 to 20 mm.

  The male terminal 11 is a terminal portion 11 a which is a part of the distal end side of the projecting portion 7 and whose diameter is reduced at the end of the projecting portion 7, and the base end of the projecting portion 7 which is the boundary between the projecting portion 7 and the insulating layer 4 It consists of the taper-shaped base part 11b which was between the part 7a and the terminal part 11a, and was gradually diameter-reduced from the base end part 7a. Moreover, in order to make it easy to insert the male terminal 11 into the female terminal 5, a tapered terminal distal end portion 11 c that is further reduced in diameter toward the distal end portion of the male terminal 11 is provided at the distal end portion of the terminal portion 11 a of the male terminal 11. It is formed. The outer diameter of the terminal portion 11a of the male terminal 11 is, for example, φ5 mm.

  When this male terminal-shaped cable 10 is connected to the female terminal-shaped cable 1, first, as shown in FIGS. 4A and 4B, the fastening member 8 is slid backward (opposite to the male terminal-shaped cable 10). In this state, the terminal portion 11 a of the male terminal 11 of the male terminal shape cable 10 is inserted into the hollow portion 5 b of the female terminal 5 of the female terminal shape cable 1. Since the end portion of the cylindrical portion 5a of the female terminal 5 has a divergent shape, the terminal portion 11a of the male terminal 11 can be easily inserted into the hollow portion 5b without wearing the contact portion. is there.

  Then, as shown to Fig.5 (a), (b), the fastening member 8 is slid ahead (male terminal shape cable 10 side). Then, the slit 9 is narrowed and the cylindrical portion 5 a is reduced in diameter, and the male terminal 11 is fastened in the female terminal 5. Thereby, the conductor connection structure 51 of the present invention in which the stranded conductor 3 of the female terminal-shaped cable 1 and the stranded conductor 3 of the male terminal-shaped cable 10 are electrically connected is obtained. The fastening strength is determined by adjusting the inner diameter (minimum inner diameter) of the fastening member 8 when the ring-like fastening member 8 is used, and fastening when the C-shaped fastening member 8 is used in a cross-sectional view. Adjustment is possible by adjusting the inner diameter (minimum inner diameter) of the member 8 or by appropriately selecting the material used for the fastening member 8 and adjusting the spring property.

  When releasing the fastening, if the fastening member 8 is slid rearward, the cylindrical portion 5a expands to the outside, and the male terminal 11 can be easily pulled out from the female terminal 5 without wearing the contact portion.

  Moreover, in order to protect the connection location of the female terminal shape cable 1 and the male terminal shape cable 10, the connection location is protected by wrapping an insulation tape or the like around the connection location or providing a casing or the like at the connection location. It may be.

  A pin terminal 15 shown in FIGS. 1E and 1F is formed integrally with a conductor pin portion 16 and a conductor pin portion 16 that are fitted to the female terminal of the female terminal-shaped cable 1, and is connected to an external electric device. Terminal portion 17 for external electrical equipment. Further, in order to facilitate the insertion of the pin terminal 15 into the female terminal 5 at the tip end portion of the conductor pin portion 16, a tapered terminal tip portion 18 having a diameter reduced toward the tip portion of the conductor pin portion 16 is formed. . The pin terminal 15 is made of, for example, copper, copper alloy, aluminum, or aluminum alloy.

  When the pin terminal 15 is used as the male terminal member, the conductor pin portion 16 of the pin terminal 15 is inserted and fitted into the hollow portion 5b of the female terminal 5 of the female terminal shape cable 1 in the same manner as when the male terminal shape cable 10 is used. Connect them together electrically.

  The operation of this embodiment will be described.

  In the conductor connection structure according to the present embodiment, the stranded wire conductor 3 at the end of the cable 6 to be the female terminal-shaped cable 1 is protruded from the insulating layer 4 to form the protrusion 7, and the end of the protrusion 7 A cylindrical female terminal 5 for inserting a male terminal member is formed by expanding from the center to be hollow, and the female terminal 5 is fastened to the outer periphery of the female terminal 5 when connected to the male terminal member. A fastening member 8 for fastening the members is slidably provided.

  In this embodiment, since the stranded wire conductor 3 itself of the cable 6 is made into a terminal and the female terminal-shaped cable 1 is formed, the conventionally used terminal becomes unnecessary and the connection portion between the conductors is not provided because the terminal is not provided. It is possible to make (the connection point between the female terminal 5 and the male terminal 11 or the conductor pin portion 16) smaller than the outer diameter of the cable 6. Therefore, the connection portion can be reduced in size.

  Further, since terminals are not required, the number of parts can be reduced, and the manufacturing cost can be suppressed. Furthermore, weight reduction in the conductor connection structure can be achieved by reducing the size and the number of parts.

  Moreover, since a terminal becomes unnecessary, the raise of the connection resistance which generate | occur | produces in the connection part of the stranded wire conductor 3 and a terminal can be suppressed, and it becomes possible to suppress the heat_generation | fever in a connection location.

  Further, since the fastening member 8 is slidably provided on the outer periphery of the female terminal 5 so that the female terminal 5 is tightened only when connected to the male terminal member, the wear of the contact portion accompanying the insertion / extraction of the male terminal member The male terminal 11 can be firmly fixed in the female terminal 5. Therefore, it is possible to realize a conductor connection structure in which the connection portion is not adversely affected by vibration and the contact portion is not worn during insertion / extraction. Therefore, for example, it is suitable as a conductor connection structure of an electric wire used in an environment with much vibration such as an automobile.

Moreover, in this embodiment, since the cylindrical part 5a of the female terminal 5 is formed in a divergent shape toward its end part, it is possible to further suppress wear of the contact part accompanying insertion / extraction of the male terminal member. The male terminal member can be easily inserted into the hollow portion 5b of the female terminal 5. Furthermore, in this embodiment, the inner wall 8a of the fastening member 8 is formed in a tapered shape that expands toward the end of the female terminal 5. Therefore, the fastening member 8 can be easily slid at the time of fastening, and the male terminal member can be fastened into the female terminal 5 by easily reducing the diameter of the cylindrical portion 5a.

  Another embodiment of the present invention will be described.

  The female terminal-shaped cable 61 shown in FIG. 6 is used to prevent the fastening member 8 from coming off at the end of the cylindrical portion 5a of the female terminal 5 in the female terminal-shaped cable 1 shown in FIGS. A stopper 62 is formed. The stopper 62 is provided so as to protrude radially outward from the end of the cylindrical portion 5a.

  The stopper 62 may be formed by further bending a part of the end portion of the tube portion 5a when the end portion of the tube portion 5a is expanded after the female terminal 5 is pressure-molded, and the end portion of the tube portion 5a is further bent. You may make it form simultaneously with the press molding of 5.

  Further, FIG. 6 shows a case where the stopper 62 is formed at a part of the end portion of the cylindrical portion 5a, but the stopper may be formed over the entire circumference of the end portion of the cylindrical portion 5a.

  By providing the stopper 62, it is possible to prevent the fastening member 8 from being accidentally detached from the female terminal 5 when the fastening member 8 is slid at the time of fastening.

  Although the case where the cylindrical female terminal 5 is formed has been described in the above embodiment, the shape of the female terminal is not limited to this. For example, when using a male terminal member having a terminal portion (or conductor pin portion) having a rectangular cross section (flat rectangular shape), the stranded wire conductor 3 of the projecting portion 7 is divided into two and molded into a clevis shape. Two rectangular (flat rectangular) terminal portions may be formed in a plan view, and a rectangular tube-shaped fastening member 8 may be provided on the outer periphery of both terminal portions. In this case, it is good to suppress the wear of the contact part accompanying insertion / extraction of a male terminal member by forming so that the edge part of both terminal parts may extend outside.

  In the said embodiment, although the thickness of the strand wire conductor 3 in the cylinder part 5a of the female terminal 5 was made constant, as shown in FIG. You may make it form in the taper shape which spreads toward the edge part of the cylinder part 5a. That is, the cylindrical portion 5a of the female terminal 5 may be tapered so that the thickness d2 of the end portion of the cylindrical portion 5a is larger than the thickness d1 of the cylindrical portion 5a on the base 5c side.

  In this case, by forming the diameter of the hollow portion 5 b slightly larger than the outer diameter of the terminal portion 11 a of the male terminal 11, it is possible to suppress wear of the contact portion accompanying insertion / extraction of the male terminal member. When forming the female terminal-shaped cable 71 of FIG. 7, the female terminal 5 may be formed by pressure molding using a female terminal molding device having a female terminal molding hole formed in a tapered shape.

  The conductor connection structure of the present invention is used for, for example, a connector of a high current wire harness employed in a hybrid vehicle or an electric vehicle. When the conductor connection structure of the present invention is applied to a connector for a large current wire harness, a female connector is provided so as to cover the female terminal 5 of the female terminal cable 1 (or 61), and the male terminal cable 10 is provided. A male side connector is provided so as to cover the male terminal 11, and the male terminal 11 may be inserted into the female terminal 5 when the female side connector and the male side connector are fitted. Moreover, in order to slide the fastening member 8, it is good to provide a lock mechanism in the female connector.

  Here, as an example, a case has been described in which the present invention is applied to a connector of a high-current wire harness employed in a hybrid vehicle, an electric vehicle, or the like, but the present invention is not limited to this.

  The present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Female terminal shape cable 2 Wire conductor 3 Stranded wire conductor 4 Insulation layer 5 Female terminal 5a Tube part 5b Hollow part 5c Base part 6 Cable 7 Protrusion part 8 Fastening member 9 Slit 10 Male terminal shape cable 11 Male terminal part 15 Pin terminal 16 Conductor pin part 17 Terminal part

Claims (12)

In a conductor connection structure for connecting a cable composed of a stranded conductor formed by twisting a plurality of strand conductors and an insulating layer formed on the outer periphery of the stranded conductor, to a male terminal member,
To project the stranded wire conductor at the end of the cable from the insulating layer to form a projecting portion, and expand the hollow from the center of the end of the projecting portion to insert the male terminal member into the projecting portion A cylindrical female terminal,
A conductor connection structure characterized in that a fastening member for fastening the male terminal member is slidably provided on the outer periphery of the female terminal at the time of connection with the male terminal member.   The female terminal includes a cylindrical portion formed by expanding the stranded wire conductor at the end of the protruding portion into a cylindrical shape, and forming a plurality of slits along the axial direction in the cylindrical portion. The conductor connection structure according to claim 1, wherein the conductor is divided in a circumferential direction.   The conductor connection structure according to claim 2, wherein the slit is formed so as to evenly divide the cylindrical portion evenly in the circumferential direction.   The conductor connection structure according to any one of claims 1 to 3, wherein the tube portion of the female terminal is formed in a divergent shape toward an end portion thereof.   The conductor connection structure according to any one of claims 1 to 4, wherein the fastening member is formed in a tapered shape whose inner wall expands toward an end of the female terminal.   The female terminal has a female terminal molding machine disposed around the protruding portion, and a pushing member having a protruding portion with a sharp tip is pushed into an end portion of the protruding portion, and a plurality of wire conductors of the protruding portion The conductor connection structure according to claim 1, wherein the conductor connection structure is formed by press molding between the female terminal molding device and the pushing member.   The conductor connection structure according to claim 6, wherein after the pressure molding, the cylindrical portion of the female terminal is formed in an end-spread shape by expanding an end portion thereof outward.   The said female terminal is a conductor connection structure in any one of Claims 1-7 formed by making the some metal wire conductor of the said protrusion part expand from the inside, and press-molding, and making a conductive metal adhere.   2. The female terminal is formed by attaching a conductive metal to a plurality of strand conductors at the end of the stranded conductor, and then expanding and pressing the plurality of strand conductors from the inside. Conductor connection structure in any one of -7.   The conductor connection structure according to claim 1, wherein the fastening member is made of the same material as the stranded conductor or stainless steel.   The conductor connection structure according to claim 1, wherein the male terminal member is a pin terminal.   The male terminal member is a cable composed of a stranded conductor formed by twisting a plurality of strand conductors and an insulating layer formed on the outer periphery of the stranded conductor, and the stranded conductor at the end of the cable is an insulating layer. 11. A projecting portion is formed by projecting from an end of the projecting portion, and an end portion of the projecting portion is compressed and reduced in diameter to form a male terminal fitted to the female terminal on the projecting portion. The conductor connection structure according to any one of the above.

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