JP2022176432A - Connector and wire with connector - Google Patents

Abstract

An object of the present invention is to suppress deterioration in communication performance.
A housing (40) includes a first housing (40A) in which terminal fittings (30) are arranged in a state in which a pair of pressure contact bodies (31, 31) protrude, and a wire ( ₁₀ ) at a turning point (10A3) pressed against the pair of pressure contact bodies. a second housing 40B in which the twisted wire pair 10A is folded back to the first twisted wire portion side _10A1 and the second twisted wire portion side _10A2 from the starting point and accommodated together with the pair of pressure contact bodies; 2 housings have a first wire housing portion 41 and a second wire housing portion 42 in which housing chambers 40d for a twisted pair wire and a pair of pressure-contact bodies are formed at the assembly completion positions facing each other, The holding member 50 includes a first wire holding portion 51 that sandwiches the first twisted wire portion side housed in the first wire housing portion at the assembly completion position between the inner wall of the first wire housing portion and the assembly completion position. and a second wire holding portion 52 that sandwiches the side of the second twisted wire portion housed in the second wire housing portion between the second wire holding portion 52 and the inner wall of the second wire housing portion.
[Selection drawing] Fig. 2

Description

TECHNICAL FIELD The present invention relates to a connector and an electric wire with a connector.

2. Description of the Related Art Conventionally, a connector and an electric wire with a connector using a twisted pair wire (a so-called twisted pair electric wire in which two electric wires are twisted together) are known. For example, this type of connector and connector-equipped wire is disclosed in Patent Document 1 below.

Japanese Patent Application Laid-Open No. 2003-217358

By the way, in a twisted pair wire, if two electric wires are untwisted, there is a possibility that the communication performance will be deteriorated, for example, the noise immunity will be lowered at the place where the untwisted wire occurs.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a connector and an electric wire with a connector that can suppress deterioration in communication performance.

In order to achieve the above object, a connector according to the present invention contains a terminal fitting provided with a pair of press-contact bodies to be press-contacted with a core wire of a portion to be press-contacted of an electric wire, and the terminal fitting for each of the electric wires; a housing that accommodates a twisted pair of wires twisted together; and a holding member that is assembled to the housing and holds the twisted pair in the housing, wherein the housing includes the twisted pair of wires. a first housing in which the terminal fittings for each of the electric wires are accommodated side by side with the pair of pressure contact bodies protruding; a second housing in which the twisted wire pair is folded back to the first twisted wire portion side and the second twisted wire portion side with the electric wire of the wire as a starting point and accommodated together with the pair of pressure contact bodies; 2 housings have a first wire housing portion and a second wire housing portion in which housing chambers for the twisted pair wires and the pair of pressure-contact bodies are formed at the assembly completion positions facing each other; The holding member includes: a first wire holding portion that sandwiches the first twisted wire portion side accommodated in the first wire accommodation portion at the assembly completion position between an inner wall of the first wire accommodation portion; and a second wire holding portion that sandwiches the second twisted wire portion side accommodated in the second wire accommodation portion at the attachment completion position between the inner wall of the second wire accommodation portion.

Further, in order to achieve the above object, the electric wire with a connector according to the present invention comprises a terminal fitting provided with a pair of pressure-contacting bodies to be pressure-contacted with the core wire of the pressure-contacted portion of the electric wire, and a twisted pair obtained by twisting two electric wires. a wire, a housing that accommodates the terminal fitting for each electric wire and the twisted pair wire, and a holding member that is assembled to the housing and holds the twisted pair wire in the housing. a first housing in which the terminal fittings for each of the wires of the twisted pair wires are arranged side by side with the pair of pressure contact bodies projecting; Starting from the electric wire at the turn-around point press-contacted to the pair of pressure contact bodies, the twisted pair wire is folded back to the first twisted wire portion side and the second twisted wire portion side and accommodated together with the pair of pressure contact bodies. 2 housings, wherein the second housing includes a first wire receiving portion and a first wire receiving portion in which receiving chambers for the twisted pair wire and the pair of pressure contact bodies are formed at the assembly completion positions facing each other; 2, the holding member is arranged between the first twisted wire portion side accommodated in the first wire accommodation portion at the assembly completion position and the inner wall of the first wire accommodation portion. A first wire holding portion for sandwiching, and a second wire holding portion for holding the second twisted wire portion side housed in the second wire housing portion at the assembly completion position between the inner wall of the second wire housing portion and the second wire housing portion. And, it is characterized by having.

In the connector and the electric wire with the connector according to the present invention, the twisted wire pair is accommodated in the housing while the folded shape is maintained by the first electric wire accommodating portion and the second electric wire accommodating portion. Therefore, in the connector and the wire with the connector, it is difficult for the two wires of the twisted pair wire to be untwisted, and deterioration in communication performance can be suppressed.

FIG. 1 is a perspective view showing an electric wire with a connector according to an embodiment. FIG. 2 is an explanatory view schematically showing a section taken along line XX of FIG. FIG. 3 is an exploded perspective view of an electric wire with a connector before twisted pair connection. FIG. 4 is an explanatory view schematically showing a cross section (excluding electric wires) taken along line XX of FIG. FIG. 5 is an exploded perspective view of an electric wire with a connector after twisted pair connection. FIG. 6 is an explanatory view schematically showing a section taken along line XX of FIG. FIG. 7 is a perspective view of the connector-equipped electric wire after the holding member is assembled. FIG. 8 is an explanatory view schematically showing a section taken along the line XX of FIG. FIG. 9 is an explanatory diagram showing an application example of the electric wire with a connector according to the embodiment. FIG. 10 is a perspective view showing an electric wire with a connector of a modification. FIG. 11 is an exploded perspective view of an electric wire with a connector of a modification. FIG. 12 is an exploded perspective view of the connector-equipped wire after the twisted pair wire and the holding member have been assembled. FIG. 13 is a perspective view of the connector-equipped electric wire before the electric wire accommodating portion is closed. FIG. 14 is a partially enlarged view taken along line YY in FIG. 11, and is an explanatory view showing the process of assembling the twisted pair wires.

EMBODIMENT OF THE INVENTION Below, embodiment of the connector which concerns on this invention, and an electric wire with a connector is described in detail based on drawing. In addition, this invention is not limited by this embodiment.

[Embodiment]
One embodiment of a connector and an electric wire with a connector according to the present invention will be described with reference to FIGS. 1 to 9. FIG.

Reference numeral 1 in FIGS. 1 to 8 indicates an electric wire with a connector according to this embodiment. This electric wire 1 with a connector includes a plurality of electric wires 10 (FIGS. 1 to 3 and FIGS. 5 to 8) and a connector 20 (FIGS. 1 to 8) attached to the plurality of electric wires 10. .

This electric wire 1 with a connector includes at least a twisted pair wire 10A in which two electric wires 10 are twisted together (FIGS. 1 to 3 and 5 to 8). In this electric wire with connector 1, _the twisted pair wire 10A is folded back to the first twisted wire portion side _10A1 and the second twisted wire portion side _10A2 starting from the folding point _10A3 . A connector 20 is attached to the (FIG. 2). For example, the connector-equipped electric wire 1 is obtained by attaching a connector 20 to a turn-around point _10A3 of one twisted pair wire 10A drawn out from a main line 10X (FIG. 9), and constitutes a wire harness WH together with the main line 10X. . The connector 20 is, for example, fitted and connected to a mating connector (not shown) of the electronic equipment EP (FIG. 9).

The electric wire 10 includes a core wire that is a conductor and a coating that covers the core wire, although not shown in the drawing.

The connector 20 includes terminal fittings 30 and a housing 40 (FIGS. 2 to 8). In this connector 20 , a terminal fitting 30 for each electric wire 10 is housed in a housing 40 . Here, a terminal fitting 30 is provided for each electric wire 10 of the twisted wire pair 10A. Further, the connector 20 is provided with a holding member 50 assembled in the housing 40 and holding the twisted pair 10A in the housing 40 (Figs. 2, 3, 5, 7 and 8).

The terminal fitting 30 is molded from a conductive material such as metal. The terminal fitting 30 is formed into a predetermined shape by, for example, press forming such as bending or cutting of a metal plate as a base material.

The terminal fitting 30 has a pair of press-contact bodies 31, 31 that are press-contacted with the core wire of the press-contact portion 10a of the electric wire 10 as a wire connection portion that is physically and electrically connected to the core wire of the wire 10 (FIG. 2 to Fig. 8). The pair of press-contact bodies 31, 31 are arranged so that their respective ends are opposed to each other with a gap therebetween, and tear off the covering of the electric wire 10 inserted between the respective ends. Press the end to the core wire. The electric wire 10 press-contacted between the pair of press-contact bodies 31, 31 is arranged in a direction perpendicular to the direction in which the press-contact bodies 31, 31 are opposed to each other and the direction in which the wire 10 is inserted between the press-contact bodies 31, 31, respectively. drawn from. This press-contact body 31 is formed as a single piece. The end portion of the pressure contact body 31 may be formed as a blade-shaped pressure contact blade, or may be formed as a plane having a thickness corresponding to the plate thickness of the base material.

The terminal fitting 30 is configured as a connection terminal to be physically and electrically connected to the mating terminal fitting, and has a pair of pressure contact bodies 31 and one terminal connection portion 32. (Figs. 2, 4, 6 and 8). The terminal connecting portion 32 and the mating terminal connecting portion of the mating terminal fitting are physically and electrically connected to each other by mutual fitting connection. is formed in the shape of a male terminal. The terminal connection portion 32 shown here is formed in the shape of a female terminal.

In the terminal metal fitting 30 shown here, a pair of press-contact bodies 31 and a terminal connection portion 32 are arranged in the fitting connection direction to the mating terminal connection portion. In this terminal metal fitting 30, the pair of press-contact bodies 31, 31 are formed so that the electric wire 10 is inserted between the pair of press-contact bodies 31, 31 in the fitting connection direction.

In this connector-equipped electric wire 1, each electric wire 10 at the turn-around point _10A3 of the twisted pair 10A is press-contacted to a pair of press-contact bodies 31, 31 of the terminal fitting 30 for each electric wire 10, thereby The first strand portion side 10A ₁ and the second strand portion side 10A ₂ are pulled out of the housing 40 in the direction opposite to the fitting connection direction of the terminal connection portion 32 .

The housing 40 is molded from an insulating material such as synthetic resin.

The housing 40 accommodates the terminal fitting 30 for each electric wire 10 and also accommodates the twisted wire pair 10A. In this housing 40, the twisted wire pair 10A is accommodated by being folded back to the first twisted wire portion side _10A1 and the second twisted wire portion side _10A2 starting from the folding point 10A3 _. The first twisted wire portion side _10A1 and the second twisted wire portion side _10A2 are pulled out of the housing 40 at the ends.

This housing 40 has a first housing 40A and a second housing 40B assembled to this first housing 40A (FIGS. 1 to 8).

The first housing 40A has a terminal accommodating chamber 40a for each terminal fitting 30 in which the terminal fittings 30 for each electric wire 10 of the twisted pair 10A are accommodated side by side with the pair of press contact bodies 31 projecting. (Figures 2, 4, 6 and 8). That is, in the first housing 40A, a terminal accommodating chamber 40a for accommodating the terminal connecting portion 32 is provided for each terminal fitting 30. As shown in FIG. In this first housing 40A, a plurality of terminal fittings 30 are accommodated with their pressure-contact bodies 31 arranged in a row. Therefore, in the first housing 40A, the terminal accommodating chambers 40a of the plurality of terminal fittings 30 are arranged side by side in the direction in which the press-contact bodies 31 of the plurality of terminal fittings 30 are arranged. Two terminal receiving chambers 40a are formed in the first housing 40A shown here.

Further, the first housing 40A has one opening in the terminal accommodating chamber 40a, a terminal insertion opening 40b for inserting the mating terminal connecting portion into the terminal accommodating chamber 40a, and the other opening in the terminal accommodating chamber 40a. 2, 4, 6 and 8, and a terminal lead-out port 40c for drawing out the pressure contact bodies 31, 31 from the terminal receiving chamber 40a. The first housing 40A shown here has a parallelepiped appearance.

In the second housing 40B, starting from the electric wire 10 at the turn-around point _10A3 that is pressed against the pair of pressure contact members 31, 31, the twisted wire pair 10A is formed into a first twisted wire portion side _10A1 and a second twisted wire portion side 10A. ₂ and is accommodated. In this second housing 40B, the folded twisted wire pair 10A is accommodated together with the pair of pressure contact members 31,31. Then, in the second housing 40B, the first twisted wire portion side _10A1 and the second twisted wire portion side _10A2 are pulled out at the folded ends. The second housing 40B shown here accommodates one twisted wire pair 10A and a pair of pressure contact bodies 31, 31 for each electric wire 10 of the twisted wire pair 10A.

The second housing 40B has a first wire housing portion 41 and a second wire housing portion 42 that are assembled together (FIGS. 1 to 8). The first wire housing portion 41 and the second wire housing portion 42 form a housing chamber 40d for the twisted wire pair 10A and the pair of press-contact members 31, 31 at the assembling completion positions facing each other. (Figures 1 and 2). Then, the first wire housing part 41 and the second wire housing part 42 pull out the first twisted wire part side 10A1 and the second twisted wire part side _10A2 of the twisted pair wire _10A at the assembly completion position. An electric wire outlet 40e is formed (FIGS. 1 and 2). Each of the first wire housing portion 41 and the second wire housing portion 42 is assembled to the first housing 40A.

The first wire housing portion 41 shown here is a rectangular flat plate-like main wall 41a that is arranged opposite to each other and protrudes in the same direction from two sides of the main wall 41a. cantilevered side walls 41b, 41b (FIGS. 1 and 3-8). In the first wire housing part 41, a part of the twisted wire pair 10A is also housed in a space surrounded by the inner walls of the main wall 41a and the two side walls 41b, 41b. In addition, the second wire housing portion 42 shown here is a rectangular plate-shaped main wall 42a, which is arranged opposite to each other and which protrudes in the same direction from two sides of the main wall 42a. and flat cantilever side walls 42b, 42b (FIGS. 1 and 3 to 8). In the second wire housing portion 42, a part of the twisted wire pair 10A is also housed in the space surrounded by the inner walls of the main wall 42a and the two side walls 42b, 42b. 3, 5 and 7, for convenience of illustration, a part of one side wall body 42b is omitted together with a second locking portion 43b, which will be described later.

Here, the first wire housing portion 41 and the second wire housing portion 42 are formed in the same shape. In the second housing 40B, when the first wire housing portion 41 and the second wire housing portion 42 are in the assembly completion position, the main wall bodies 41a and 42a are arranged to face each other, and one of the side wall bodies 41b and 42a is arranged to face each other. The free ends of 42b are butted against each other, and the free ends of the other side walls 41b and 42b are butted against each other. Therefore, the second housing 40B shown here has a rectangular tubular shape in which the direction in which the first stranded wire portion side _10A1 and the second stranded wire portion side _10A2 are pulled out is the tube axis at the assembly completion position. In the second housing 40B, an internal parallelepiped space is a housing chamber 40d, and an opening facing the first housing 40A across the housing chamber 40d is a wire outlet 40e.

The second housing 40B has a lock mechanism 43 for maintaining the assembled state of the first wire housing portion 41 and the second wire housing portion 42 (FIGS. 1, 3, 5 and 7). For example, the locking mechanism 43 includes a first locking portion 43a provided in the first wire housing portion 41 and a second locking portion 43b provided in the second wire housing portion 42 (FIGS. 3 and 5). and FIG. 7). In this locking mechanism 43, the first locking portion 43a and the second locking portion 43b are arranged in a positional relationship that allows the first wire housing portion 41 and the second wire housing portion 42 to be assembled. Here, the first locking portion 43a is provided at the free end of each side wall 41b of the first wire housing portion 41, and the second locking portion 43b is provided at the free end of each side wall 42b of the second wire housing portion 42. is provided. In the locking mechanism 43, when the first wire housing portion 41 and the second wire housing portion 42 move toward the closed position described later and reach the assembly completion position, the first wire housing portion 41 and the second wire housing portion 42 are locked. A state in which the first engaging portion 43a and the second engaging portion 43b can be engaged with each other between the butted free ends in order to suppress the movement of the second wire housing portion 42 toward the open position, which will be described later. placed in For example, one of the first locking portion 43a and the second locking portion 43b has a claw portion, and the other of them is positioned at the open position of the first wire housing portion 41 and the second wire housing portion . It has a hook portion that hooks on the claw portion as it moves toward it.

In the connector 20 and the connector-equipped wire 1, the wire 10 of the twisted pair wire 10A before folding is pressed against the pair of press-contact bodies 31, 31 on the side of the first housing 40A, and then the second housing is attached to the first housing 40A. Assemble 40B. For example, in the connector 20 and the connector-equipped wire 1, the unfolded twisted wire 10A that is in pressure contact with the pair of pressure contact bodies 31, 31 is placed in the first wire accommodating portion 41 before and after the pair of pressure contact bodies 31, 31. and the second wire housing portion 42 . In the connector 20 and the connector-equipped wire 1, the twisted pair 10A is folded while being pushed by the first wire housing portion 41 and the second wire housing portion 42, and the first wire housing portion 41 and the second wire housing portion 41 are folded back. The accommodating portion 42 is assembled with the locking mechanism 43, and the first wire accommodating portion 41 and the second wire accommodating portion 42 are assembled to the first housing 40A.

In the second housing 40B shown here, part of the twisted wire pair 10A before being folded is routed between the first wire housing portion 41 and the second wire housing portion 42 before assembly, and The electric wire 10 of the twisted wire pair 10A before being folded is inserted between the pair of press-contact members 31, 31 interposed between the first electric wire accommodating portion 41 and the second electric wire accommodating portion . In the second housing 40B, the twisted wire pair 10A is folded back in conjunction with the assembly operation of the first wire housing portion 41 and the second wire housing portion 42. As shown in FIG. Here, the first wire housing portion 41 and the second wire housing portion 42 are assembled to the assembly completion position while rotating the first wire housing portion 41 and the second wire housing portion 42 relative to the first housing 40A. The twisted wire pair 10A is folded while being pushed by the wire accommodating portion 42. - 特許庁The housing 40 includes a first hinge portion 40C provided between the first housing 40A and the first wire housing portion 41, and a second hinge portion 40D provided between the first housing 40A and the second wire housing portion 42. , (FIGS. 2, 4, 6 and 8).

In the first hinge portion 40C, a portion that becomes a part of the first twisted wire portion side _10A1 after folding back in the twisted pair wire 10A (hereinafter referred to as a “first wiring twisted wire portion”) is the first wire housing portion 41. Between the open position of the first wire housing portion 41 wired to the first wire housing portion 41 and the closed position of the first wire housing portion 41 as the assembly completion position, the first wire housing portion 41 is placed in the first wiring It is formed so as to be able to rotate relative to the first housing 40A together with the stranded wire portion. That is, the first hinge portion 40C is positioned between the open position of the first wire housing portion 41 where the twisted wire pair 10A is not folded and the closed position of the first wire housing portion 41 where the twisted wire pair 10A is folded. The first wire receiving portion 41 is formed to be relatively rotatable with respect to the first housing 40A.

In the second hinge portion 40D, a portion that becomes a part of the second twisted wire portion side 10A ₂ after folding back in the twisted pair wire 10A (hereinafter referred to as “second wiring twisted wire portion”) is the second wire housing portion 42. between the open position of the second wire housing portion 42 wired to the second wire housing portion 42 and the closed position of the second wire housing portion 42 as the assembly completion position. It is formed so as to be able to rotate relative to the first housing 40A together with the stranded wire portion. That is, the second hinge portion 40D is positioned between the open position of the second wire housing portion 42 in which the twisted wire pair 10A is not folded back and the closed position of the second wire housing portion 42 in which the twisted wire pair 10A is folded. The second wire receiving portion 42 is formed to be relatively rotatable with respect to the first housing 40A.

The first hinge portion 40C extends between the closed position and the open position while part of the twisted wire pair 10A is routed between the first wire housing portion 41 and the second wire housing portion . The wire housing portion 41 is provided at a position where it can be rotated relative to the first housing 40A. Then, the second hinge portion 40D is arranged between the closed position and the open position while part of the twisted pair 10A is routed between the first wire housing portion 41 and the second wire housing portion 42. The second wire receiving portion 42 is provided at a position where it can be rotated relative to the first housing 40A. The first hinge portion 40C and _the second hinge portion 40D shown here respectively correspond to the opposing arrangement direction of the first twisted wire portion side 10A1 and the second twisted wire portion side _10A2 of the twisted pair wire 10A and the first twisted wire portion. The direction perpendicular to the pull-out direction of the side _10A1 and the second strand portion side _10A2 is defined as the axis of the rotating shaft. In the housing 40 shown here, a living hinge is applied to the first hinge portion 40C and the second hinge portion 40D, and the first housing 40A, the first wire housing portion 41, the second wire housing portion 42, and the first hinge portion 40C. and the second hinge portion 40D are integrally molded.

The holding member 50 is arranged in the storage chamber 40d of the second housing 40B, and holds the twisted wire pair 10A after folding in the storage chamber 40d. The holding member 50 includes a first wire holding portion 51 that sandwiches the first twisted wire portion side _10A1 housed in the first wire housing portion 41 at the assembly completion position between itself and the inner wall of the first wire housing portion 41 . and a second wire holding portion 52 that sandwiches the second twisted wire portion side _10A2 housed in the second wire housing portion 42 at the assembly completion position between itself and the inner wall of the second wire housing portion 42 (Fig. 2, FIGS. 3, 5, 7 and 8). In this holding member 50, the first wire pressing portion 51 is interposed between the pair of pressure contact bodies 31, 31 and the first twisted wire portion side _10A1 , and the pair of pressure contact bodies 31, 31 and the second twisted wire portion side 10A1 are interposed. A second wire holding portion 52 is interposed between the wire portion side _10A2 .

The first wire retainer 51 is arranged to face the pair of pressure contact bodies 31, 31 in one direction of drawing out the wire 10 from between the pair of pressure contact bodies 31, 31, and The electric wire outlet 40e side of the assembly completion position is opposed to the drawn electric wire 10. - 特許庁Further, the first wire holding portion 51 is arranged to face the inner wall of the main wall body 41a in the first wire housing portion 41 at the assembly completion position with a gap therebetween. The interval between them is made equal to the wire diameter of the wire 10 . Thus, in the housing 40, by rotating the first wire housing portion 41 relative to the first housing 40A from the closed position to the open position, when the first wire housing portion 41 is at the assembly completion position, The electric wire 10 on the first twisted wire portion side 10A1 is sandwiched between the inner wall of the main wall body 41a and the first electric wire pressing portion _51. As shown in FIG. The first wire holding portion 51 shown here sandwiches the wire 10 at the end portion of the first strand portion side _10A1 on the side of the turning point _10A3 between itself and the inner wall of the main wall 41a.

On the other hand, the second wire retainer 52 is arranged to face the pair of pressure contact bodies 31, 31 in the direction in which the other side of the wire 10 is pulled out from between the pair of pressure contact bodies 31, 31, and The wire outlet 40e side of the assembly completion position is opposed to the wire 10 pulled out in the direction. Further, the second wire holding portion 52 is arranged to face the inner wall of the main wall body 42a in the second wire housing portion 42 at the assembly completion position with a space therebetween. The interval between them is made equal to the wire diameter of the wire 10 . Thus, in the housing 40, by rotating the second wire housing portion 42 relative to the first housing 40A from the closed position to the open position, when the second wire housing portion 42 is at the assembly completion position, The electric wire 10 on the second twisted wire portion side 10A2 is sandwiched between the inner wall of the main wall body 42a and the second electric wire pressing portion _52. As shown in FIG. The second wire retainer 52 shown here sandwiches the wire 10 at the end of the second twisted wire portion side _10A2 on the side of the turning point _10A3 between itself and the inner wall of the main wall 42a.

For example, the holding member 50 shown here has a rectangular plate-like base portion 53, and a first wire holding portion 51 and a second wire holding portion 52 are vertically provided from one plane of the base portion 53. (Figures 3, 5 and 7). Here, at the assembly completion position of the holding member 50 with respect to the housing 40 , the vertical installation direction of the first wire holding portion 51 and the second wire holding portion 52 is aligned with the arrangement direction of the pressure contact members 31 .

The first wire retainer 51 shown here is arranged to face the pair of pressure contact bodies 31 and 31 of each of the plurality of terminal fittings 30, and is pulled out from between the pair of pressure contact bodies 31 and 31 in one drawing direction. Each electric wire 10 (each electric wire 10 on the first twisted wire portion side _10A1 in the twisted pair 10A) pulled out to the inner wall of the main wall 41a is sandwiched between them. The second wire retainer 52 shown here is arranged to face the pair of press contact bodies 31, 31 of the plurality of terminal fittings 30, and the other pair of press contact bodies 31, 31 is positioned between the pair of press contact bodies 31, 31. It is formed such that each wire 10 pulled out in the pull-out direction (each wire 10 on the second twisted wire portion side _10A2 in the twisted pair wire 10A) is sandwiched between the inner wall of the main wall 42a. For example, the first wire holding portion 51 and the second wire holding portion 52 are formed in the shape of a shaft extending from the base portion 53 so as to be arranged to face the pair of pressure contact bodies 31 , 31 .

Further, the first wire holding portion 51 and the second wire holding portion 52 shown here respectively have arcuate surfaces 51a and 52a along which the wire 10 after being folded back is along the circumferential direction (FIGS. 2 and 8). . The arcuate surfaces 51a and 52a are formed to have a curvature large enough not to generate excessive bending stress on the electric wire 10 after being folded back. The excessive bending stress is, for example, a bending stress of a magnitude that reduces the durability of the twisted pair 10A, a bending stress of a magnitude that may cause untwisting of the twisted pair 10A, or the like. . Therefore, the connector 20 and the connector-equipped electric wire 1 can suppress deterioration in durability and communication performance.

Further, the terminal fitting 30 (terminal connecting portion 32) is locked to the holding member 50 shown here so as not to come out of the terminal accommodating chamber 40a, and this terminal fitting 30 (terminal connecting portion 32) is secured to the terminal accommodating chamber. Terminal locks 54 are provided for retention in 40a (FIGS. 2, 3, 5, 7 and 8). The terminal locking portion 54 is arranged to face the terminal outlet 40c on the terminal accommodating chamber 40a side of the electric wire 10 pulled out from between the pair of pressure contact members 31,31. The terminal locking portion 54 shown here extends from the base portion 53 so as to face the terminal outlet 40c of each terminal fitting 30 in the same manner as the first wire holding portion 51 and the second wire holding portion 52. It is formed in the shape of a straightened shaft. Further, the terminal locking portion 54 shown here is arranged closer to the terminal outlet 40c than the second wire holding portion 52 is.

The housing 40 is provided with a holding portion 40E that holds the holding member 50 (FIGS. 2 to 8). Here, the holding portions 40E are provided at two locations, and the holding member 50 is held by each holding portion 40E. The two holding portions 40</b>E are arranged at locations where the pair of pressure contact bodies 31 , 31 of the plurality of terminal metal fittings 30 are interposed therebetween in the arrangement direction of the pressure contact bodies 31 of the plurality of terminal metal fittings 30 . The two holding portions 40E include a first fitting portion 44a into which the first wire holding portion 51 is fitted, a second fitting portion 44b into which the second wire holding portion 52 is fitted, and a terminal locking portion. A third fitting portion 44c into which the portion 54 is fitted is provided (FIGS. 2, 4, 6 and 8).

For example, the two holding portions 40E are formed in a rectangular flat plate shape and protrude from the wall surface of the first housing 40A on the side of the terminal outlet 40c. The first fitting portion 44 a is formed in the same shape as the cross section perpendicular to the axis of the first wire holding portion 51 . The second fitting portion 44b is formed to have the same shape as the cross section perpendicular to the axis of the second wire holding portion 52 . The third fitting portion 44c is formed to have the same shape as the cross section perpendicular to the axis of the terminal locking portion 54 . In the holding member 50, the first wire holding portions 51 are fitted into the first fitting portions 44a of the two holding portions 40E, and the second wire holding portions 52 are fitted into the second fitting portions 44b of the two holding portions 40E. The two holding portions 40E are held by fitting and fitting the terminal locking portion 54 into the third fitting portions 44c of the two holding portions 40E.

In the connector 20 and the electric wire 1 with a connector, when the first electric wire accommodating portion 41 and the second electric wire accommodating portion 42 are in the open position, the respective electric wires 10 of the portions that become the folding points _10A3 of the twisted pair wires 10A after folding. a pair of pressure-contacting bodies 31, 31 are pressed against each other, and a first twisted wire portion that becomes the first twisted wire portion side _10A1 of the twisted pair wire 10A after folding is housed in the first wire housing portion 41, and The second wiring twisted wire portion that becomes the second twisted wire portion side _10A2 of the twisted pair wire 10A after folding is housed in the second wire housing portion 42, and part of the twisted wire pair 10A is placed in the first wire housing portion. 41 and the second wire accommodating portion 42 (FIGS. 5 and 6). After that, in the connector 20 and the electric wire with connector 1, the holding member 50 is assembled with the two holding portions 40E, and the electric wire 10 pulled out from between the pair of pressure contact bodies 31, 31 in one of the pulling directions is placed in the first direction. The wire 10 is arranged closer to the terminal lead-out port 40 c side than the wire holding portion 51 and pulled out from between the pair of press-contact members 31 , 31 in the other direction of drawing out, and the second wire accommodating portion 42 and the terminal locking portion 54 . (FIGS. 7 and 8). In the connector 20 and the connector-equipped wire 1, the first wire accommodating portion 41 is relatively rotated to the closed position with respect to the first housing 40A around the first hinge portion 40C and the second hinge portion 40D, respectively. and rotate the second wire receiving portion 42 relative to the first housing 40A to the closed position (FIGS. 1 and 2). As a result, in the connector 20 and the electric wire with connector 1, the electric wire 10 of the first wiring stranded wire portion, which is the first stranded wire portion side _10A1 , is pushed against the inner wall of the main wall 41a of the first wire accommodating portion 41. The electric wire 10 of the second wiring stranded wire portion that is moved and folded back and becomes the second stranded wire portion side _10A2 is pushed by the inner wall of the main wall 42a of the second wire accommodating portion 42 and folded back. In the connector 20 and the electric wire with connector 1, when the first electric wire accommodating portion 41 and the second electric wire accommodating portion 42 are held in the closed position by the locking mechanism 43, the inner wall of the main wall 41a and the second electric wire accommodating portion 41 are closed. The first strand portion side 10A1 is sandwiched between the first wire housing portion 41 and the second strand portion side _10A2 is sandwiched between the inner wall of the main wall body 42a and the second wire housing portion ₄₂ . be done.

As described above, in the connector 20 and the connector-equipped wire 1 of the present embodiment, the twisted pair 10A is inserted into the housing 40 while the folded shape is maintained by the first wire housing portion 41 and the second wire housing portion 42. are housed in Therefore, in the connector 20 and the connector-equipped electric wire 1, the two electric wires 10 of the twisted pair 10A are difficult to untwist, and deterioration in communication performance can be suppressed.

Here, in the connector 20 and the electric wire with connector 1 of the present embodiment, the first twisted wire portion side _10A1 and the second twisted wire portion side _10A2 of the twisted pair wire 10A are arranged outside the housing 40 from the wire outlet 40e. is drawn out to Therefore, there is a possibility that the force directed in the pull-out direction acts on the first strand portion side _10A1 and the second strand portion side _10A2 outside the housing 40 . However, in the connector 20 and the electric wire with connector 1, the force can be received by the first electric wire accommodating portion 41 and the second electric wire accommodating portion 42, and accordingly, the electric wire 10 at the turn-around point _10A3 is pressed into a pair. It is possible to prevent slipping out from between the bodies 31, 31. - 特許庁Therefore, the connector 20 and the connector-equipped electric wire 1 can suppress deterioration in communication performance from this point as well.

[Modification]
Reference numeral 2 in FIGS. 10 to 13 indicates an electric wire with a connector according to this modification. The electric wire 2 with a connector of this modification is obtained by replacing the connector 20 in the electric wire 1 with a connector of the embodiment described above with a connector 120 described below. A connector 120 of this modification is obtained by replacing the housing 40 and the holding member 50 in the connector 20 of the above-described embodiment with a housing 140 and a holding member 150, respectively. For this reason, in the following description, the same reference numerals as in this embodiment are given to the same parts as those of the connector 20 and the electric wire with connector 1 of the embodiment, and the description thereof will be omitted.

The housing 140 of this modified example has a first housing 140A formed as the same as the housing 40 of the embodiment, and a second housing 140B assembled to the first housing 140A (FIGS. 10 to 13). . The second housing 140B has a first wire housing portion 141 and a second wire housing portion 142 similar to the second housing 40B of the embodiment. In the second housing 140B, as in the second housing 40B of the embodiment, the first wire accommodating portion 141 is rotated relative to the first housing 140A by the first hinge portion 140C, and the second wire accommodating portion is rotated. The portion 142 is rotated relative to the first housing 140A by the second hinge portion 140D. And the 1st wire accommodation part 141 of this modification has the same main wall 141a and the two side walls 141b and 141b as the 1st wire accommodation part 41 of embodiment. Similarly, the second wire housing portion 142 of this modification has a main wall 142a and two side walls 142b, 142b similar to the second wire housing portion 42 of the embodiment.

For this reason, in the housing 140 of this modified example, the terminal fittings 30 of the respective wires 10 of the twisted pair 10A are arranged in a state in which the pair of press-contact bodies 31, 31 protrude, and are arranged in the terminal accommodating chamber of the first housing 140A. 40a (FIGS. 11 and 12). Further, in the housing 140, when the first wire housing portion 141 and the second wire housing portion 142 are in the assembly completion position, the second housing 140B is formed with a housing chamber 40d and a wire outlet 40e (FIG. 10). ). Therefore, the twisted wire pair 10A in which the pair of press contact members 31, 31 are pressed against the electric wire 10 at the folding point _10A3 is accommodated in the accommodating chamber 40d. In this twisted pair wire 10A, the first twisted wire portion side _10A1 and the second twisted wire portion side _10A2 are pulled out from the wire outlet 40e.

Although not shown, the second housing 140B of this modified example maintains the first wire housing portion 141 and the second wire housing portion 142 in the assembled state by the same lock mechanism 43 as in the embodiment.

A holding member 150 of this modified example has a first wire holding portion 151 and a second wire holding portion 152 similar to the holding member 50 of the embodiment (FIGS. 11 to 13). Therefore, in the accommodation chamber 40d of the second housing 140B, the first twisted wire portion side 10A1 accommodated in the first wire accommodation portion ₁₄₁ is separated from the inner wall of the main wall 141a of the first wire accommodation portion 141 and the first wire. It is sandwiched between it and the pressing portion 151 . The first wire holding portion 151 and the second wire holding portion 152 are vertically provided from the base portion 153 in the same manner as the first wire holding portion 51 and the second wire holding portion 52 of the embodiment (FIGS. 11 and 12). ). Although not shown, the first wire holding portion 151 and the second wire holding portion 152 have the same arcuate surfaces 51a and 52a as the first wire holding portion 51 and the second wire holding portion 52 of the embodiment, respectively. A surface may be provided.

Furthermore, the holding member 150 of this modified example has terminal locking portions 154 similar to the holding member 50 of the embodiment (FIGS. 11 to 13). Therefore, in the receiving chamber 40d of the second housing 140B, the terminal locking portion 154 locks the terminal fitting 30 (terminal connecting portion 32), and the terminal fitting 30 (terminal connecting portion 32) is held in the terminal receiving chamber. 40a.

Here, in the holding member 150 of this modified example, the twisted wire pair 10A is assembled in advance, and by assembling the twisted wire pair 10A together with the housing 140, a pair of pressure contact bodies are attached to the respective electric wires 10 of the twisted wire pair 10A. 31, 31 are brought into pressure contact. Therefore, in the holding member 150, the second wire holding portion 152 and the terminal locking portion 154 are arranged so that the distance therebetween is equal to the wire diameter of the wire 10, and the second wire holding portion 152 and the terminal locking portion 154, the electric wires 10 of the twisted wire pair 10A are aligned in the arrangement direction of the pair of pressure contact bodies 31, 31 of the plurality of terminal fittings 30, respectively.

The holding member 150 is also provided with a wire aligning portion 155 having a wire aligning function similar to that of the terminal locking portion 154 on the side of the first wire pressing portion 151 (FIGS. 11 to 13). The wire aligning portion 155 is formed in the same shape as the terminal locking portion 154, and is arranged on the first wire holding portion 151 side in the same manner as the terminal locking portion 154 is arranged with respect to the second wire holding portion 152. 151. Therefore, in the holding member 150 , the first wire holding portion 151 and the wire aligning portion 155 are also arranged such that the distance therebetween is equal to the wire diameter of the wire 10 .

In addition, in this holding member 150, each electric wire 10 of the twisted wire pair 10A is inserted from an opening on the free end side between the first electric wire holding portion 151 and the electric wire aligning portion 155, and is inserted into the second electric wire holding portion. It is inserted from the opening on the free end side between the portion 152 and the terminal locking portion 154 . In this holding member 150, in order to improve the workability when assembling the twisted pair wires 10A, the respective openings are separated from the first wire holding portion 151 and the wire aligning portion 155, and the second wire holding portion 152 and terminal engagement. It is widened more than the interval of the portion 154 .

In this holding member 150, each wire 10 of the twisted pair wire 10A inserted from each opening is held between the first wire holding portion 151 and the wire aligning portion 155 and between the second wire holding portion 152 and the terminal. It is inserted while being guided between the engaging portions 154 . For this reason, in the holding member 150, a tapered portion 156a is provided between the ends of the first wire pressing portion 151 and the wire aligning portion 155 on the free end side, and a tapered portion 156a that widens toward the opening. A tapered portion 156b is provided between the ends of the wire pressing portion 152 and the terminal locking portion 154 on the free end side (FIGS. 11 to 13). As a result, in the holding member 150, the wires 10 of the twisted pair 10A inserted from the respective openings are guided one by one by the tapered portions 156a and 156b, and the first wire holding portion 151 and the wire aligning portion are guided one by one. 155 and between the second wire holding portion 152 and the terminal locking portion 154 (FIG. 14).

Therefore, in the holding member 150, when the holding member 150 is assembled to the housing 140, the first wire 10 is pulled out from the pair of pressure contact bodies 31, 31 of the plurality of terminal fittings 30 on one side of the lead wire 10 therebetween. Between the pressing portion 151 and the wire aligning portion 155, the wires 10 of the twisted wire pair 10A are aligned along the arrangement direction of the pair of pressure contact bodies 31,31. Further, in the holding member 150, when assembled to the housing 140, the second wire retainer 152 and the terminal are positioned on the other side of the lead-out direction of the wire 10 from between the pair of pressure contact bodies 31, 31, respectively. The electric wires 10 of the twisted wire pair 10A are aligned along the arrangement direction of the pair of pressure contact members 31, 31 between the locking portion 154 and the locking portion 154, respectively.

In the connector 120 and the connector-equipped electric wire 2 of this modified example, first, the twisted wire pair 10A is assembled to the holding member 150 (FIGS. 11 and 12). Subsequently, in the connector 120 and the connector-equipped wire 2, the holding member 150 is assembled together with the twisted wire pair 10A to the housing 140 in which the first wire housing part 141 and the second wire housing part 142 are in the open position (Fig. 12 and Figure 13). As a result of this assembly, in the connector 120 and the electric wire with connector 2, the pair of pressure contact bodies 31, 31 are brought into pressure contact with the respective electric wires 10 at the portion that will become the turning point _10A3 of the twisted pair wire 10A after being turned back. The first wiring twisted wire portion which later becomes the first twisted wire portion side _10A1 of the twisted pair wire 10A is accommodated in the first wire accommodating portion 141, and after folding, the second twisted wire portion side 10A of the twisted pair wire 10A ₂ is accommodated in the second wire accommodation portion 142, and part of the twisted pair wire 10A is extended between the first wire accommodation portion 141 and the second wire accommodation portion 142. Arrange (Fig. 13). After that, in the connector 120 and the connector-equipped wire 2, the first wire accommodating portion 141 is moved relative to the first housing 140A to the closed position with the first hinge portion 140C and the second hinge portion 140D as rotation centers, respectively. and rotate the second wire receiving portion 142 relative to the first housing 140A to the closed position (FIGS. 13 and 10). As a result, in the connector 120 and the connector-equipped electric wire 2, the electric wire 10 of the first wiring stranded wire portion, which is the first stranded wire portion side _10A1 , is pushed against the inner wall of the main wall 141a of the first wire accommodating portion 141. The electric wire 10 of the second wiring stranded wire portion which is moved and folded back and becomes the second stranded wire portion side _10A2 is pushed by the inner wall of the main wall 142a of the second wire housing portion 142 and folded back. In the connector 120 and the connector-equipped wire 2, when the first wire housing portion 141 and the second wire housing portion 142 are in the closed position, the inner wall of the main wall 141a and the first wire housing portion 141 are separated from each other. The first stranded wire portion side _10A1 is sandwiched therebetween, and the second stranded wire portion side _10A2 is sandwiched between the inner wall of the main wall body 142a and the second wire housing portion 142 .

As described above, in the connector 120 and the electric wire with connector 2 of the present modified example, like the connector 20 and the electric wire with connector 1 of the embodiment, the first electric wire accommodating portion 141 and the second electric wire accommodating portion 142 are folded back. The twisted wire pair 10A is accommodated in the housing 140 while maintaining its shape. Therefore, in the connector 120 and the connector-equipped electric wire 2, the two electric wires 10 of the twisted pair 10A are difficult to untwist, and deterioration in communication performance can be suppressed.

Here, in the connector 120 and the electric wire with connector 2 of this modified example, the first twisted wire portion side 10A ₁ of the twisted pair wire 10A and the second twisted wire The part side _10A2 is pulled out of the housing 140 from the wire outlet 40e. Therefore, even in this modified example, there is a possibility that the force directed in the pull-out direction will act on the first stranded wire portion side 10A ₁ and the second stranded wire portion side 10A ₂ outside the housing 140 . However, in the connector 120 and the connector-equipped wire 2, the force can be received by the first wire housing portion 141 and the second wire housing portion 142, and accordingly, the wire 10 at the turn-around point _10A3 is pressed into a pair. It is possible to prevent slipping out from between the bodies 31, 31. - 特許庁Therefore, the connector 120 and the connector-equipped electric wire 2 can suppress deterioration in communication performance from this point as well.

Reference Signs List 1, 2 Electric wire with connector 10 Electric wire 10a Pressure contact part 10A Twisted pair wire 10A ₁ First twisted wire part side 10A ₂ Second twisted wire part side 10A ₃ Turning point 20, 120 Connector 30 Terminal fitting 31 Pressure contact body 40, 140 Housing 40d housing chamber 40A, 140A first housing 40B, 140B second housing 40C, 140C first hinge portion 40D, 140D second hinge portion 41, 141 first wire housing portion 42, 142 second wire housing portion 50, 150 holding member 51, 151 First wire holding portion 52, 152 Second wire holding portion

Claims (5)

a terminal fitting provided with a pair of pressure-contacting bodies to be pressure-contacted with the core wire of the pressure-contacted portion of the electric wire;
a housing that accommodates the terminal fitting for each electric wire and accommodates a twisted pair wire obtained by twisting two electric wires;
a holding member assembled to the housing and holding the twisted pair in the housing;
with
The housing includes a first housing in which the terminal fittings for each of the wires of the twisted pair wires are accommodated side by side with the pair of press contact bodies protruding; A second housing in which the twisted wire pair is folded back to the first twisted wire portion side and the second twisted wire portion side starting from the electric wire at the turn-around point that is pressed against the pressure contact body and accommodated together with the pair of pressure contact bodies. and
The second housing has a first wire housing portion and a second wire housing portion in which the twisted pair wires and the pair of press-contact bodies are formed at the assembling completion positions facing each other. ,
The holding member includes a first wire holding portion that sandwiches the first twisted wire portion side accommodated in the first wire accommodation portion at the assembly completion position between an inner wall of the first wire accommodation portion and the and a second wire retainer that sandwiches the second twisted wire part side housed in the second wire housing part at the assembly completion position between the inner wall of the second wire housing part and the second wire housing part. connector. The housing has a first hinge portion provided between the first housing and the first wire accommodating portion, and a second hinge portion provided between the first housing and the second wire accommodating portion. death,
In the first hinge portion, a first wiring twisted wire portion which becomes a part of the first twisted wire portion side after folding back of the twisted pair wire is wired to the first wire housing portion. Between the open position of the wire housing portion and the closed position of the first wire housing portion as the assembly completion position, the first wire housing portion is moved together with the first stranded wire portion into the first housing. formed to be rotatable relative to
In the second hinge portion, a second wiring twisted wire portion which becomes a part of the second twisted wire portion side after folding back of the twisted pair wire is wired to the second wire housing portion. Between the open position of the wire housing portion and the closed position of the second wire housing portion as the assembly completion position, the second wire housing portion is moved to the first housing together with the second wire stranded wire portion. 2. The connector of claim 1, wherein the connector is configured to be rotatable relative to the . The first hinge portion and the second hinge portion are arranged in directions in which the first twisted wire portion side and the second twisted wire portion side of the twisted pair wire are opposed to each other, and the first twisted wire portion side and the second twisted wire portion side. 3. The connector according to claim 2, wherein the direction perpendicular to the direction in which the two strands are pulled out is the axis of the rotating shaft. The holding member interposes the first wire holding portion between the pair of pressure contact bodies and the first twisted wire portion side, and between the pair of pressure contact bodies and the second twisted wire portion side. 4. The connector according to claim 1, 2 or 3, wherein said second wire retainer is interposed in said connector. a terminal fitting provided with a pair of pressure-contacting bodies to be pressure-contacted with the core wire of the pressure-contacted portion of the electric wire;
A twisted pair wire in which two electric wires are twisted together,
a housing in which the terminal fitting for each electric wire is accommodated and the twisted pair wire is accommodated;
a holding member assembled to the housing and holding the twisted pair in the housing;
with
The housing includes a first housing in which the terminal fittings for each of the wires of the twisted pair wires are accommodated side by side with the pair of press contact bodies protruding; A second housing in which the twisted wire pair is folded back to the first twisted wire portion side and the second twisted wire portion side starting from the electric wire at the turn-around point that is pressed against the pressure contact body and accommodated together with the pair of pressure contact bodies. and
The second housing has a first wire housing portion and a second wire housing portion in which the twisted pair wires and the pair of press-contact bodies are formed at the assembling completion positions facing each other. ,
The holding member includes a first wire holding portion that sandwiches the first twisted wire portion side accommodated in the first wire accommodation portion at the assembly completion position between an inner wall of the first wire accommodation portion and the and a second wire retainer that sandwiches the second twisted wire part side housed in the second wire housing part at the assembly completion position between the inner wall of the second wire housing part and the second wire housing part. Wires with connectors.

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