JP5474449B2 - Wire connector - Google Patents

Description

  The present invention relates to a wire connector applied as a service plug or the like that shuts off a circuit, for example, during maintenance of an electric vehicle.

  FIG. 11 shows an embodiment of a conventional wire connector.

  The electric wire connector 71 is mounted on a battery pack of an electric vehicle including a hybrid car. In order to prevent an electric shock during maintenance or the like, an operator disconnects the upper plug 72 with a fuse from the lower connector 73, This is a so-called service plug that cuts off electricity between the wires 74 of the connector 73.

  Each electric wire 74 is connected to each female terminal (not shown) in the connector, and each female terminal is connected to a male terminal of a fuse (not shown) on the plug side. Each electric wire 74 is led downward from the bottom of the connector 73 and connected to a circuit in the battery pack. A low-strength fitting lever 75 is rotatably provided on the plug 72, and a driven projection 76 of the connector 73 is slidably engaged with a cam hole of the lever 75.

  A horizontal bracket (not shown) on the battery pack side is inserted into the left and right horizontal grooves 77 at the bottom of the connector 73, and the connector 73 is fixed to the bracket by bolting with the plug 72 removed. Reference numeral 78 denotes a sensor circuit for detecting interruption. An electric wire connector similar to the above is described in Patent Document 1, for example.

JP 2009-48795 A (FIGS. 7 to 8)

  However, in the electric wire connector 71 described above, since the electric wire 74 can be taken out (derived) only in one direction (downward), for example, when the take-out direction of the electric wire 74 is changed due to a vehicle design change or new installation or the like. There was a problem that it was not possible to cope with the case where there was an obstacle in the direction of taking out the wire. Moreover, in order to mount in the narrow space of a battery pack, it was necessary to make the electric wire connector 71 compact as much as possible.

  In view of the above points, the present invention provides an electric wire connector that can easily and reliably take out electric wires in a plurality of directions in response to obstacles and the like, and that can further reduce the appearance. With the goal.

To achieve the above object, the wire connector according to claim 1 of the present invention includes a housing for inserting accommodating a pair of terminals with wire, and a wire take-out member attached to the bottom of the housing, the housing has a pair of holes for pin insertion and wire insertion to the bottom wall, the electric wire take-out member, and a pair of electric wire take-out portion that protrudes in a direction orthogonal to the insertion direction of the terminal, the pair Provided on each upper wall of the wire outlet, a pair of terminals for inserting and penetrating the terminals that communicate the inside of the wire outlet with the hole, and a lower opening of each wire outlet facing the upper wall It has a cover part to be closed and a pair of symmetrical engaging parts with respect to a pair of symmetrical locking parts of the housing , and can be selectively inverted and attached to the housing.

  With the above configuration, the terminal with the electric wire is vertically inserted into the housing from the hole at the bottom of the housing, and the electric wire is bent vertically into the electric wire extraction part through the opening of the electric wire extraction member vertically from the hole at the bottom. It is routed and is led out to the outside from the wire outlet. Since the electric wire is taken out horizontally rather than vertically, the electric wire can be routed without any trouble even when there is an obstacle below the electric wire extraction member. Also, if there are obstacles in the wire extraction direction, turn the wire extraction member 180 ° in the state that it is removed from the housing and install it in the housing to reverse the wire extraction direction and avoid obstacles. it can. Since the pair of locking portions of the housing and the pair of engaging portions of the wire take-out member are arranged symmetrically, the wire take-out member can be locked again in the inverted state with respect to the fixed-side housing. . Here, “a pair” of the locking portion, the engaging portion, the electric wire extraction portion, the hole portion, and the opening means at least a pair, and two pairs may be symmetrical.

The electric wire connector according to a second aspect is the electric wire connector according to the first aspect, wherein the electric wire outlet portion protrudes in a thickness direction or a width direction of the housing.

  With the above configuration, the electric wires are taken out in the thickness direction of the housing, that is, in the direction along the wall portion on the short side of the housing.

Alternatively , the electric wire is taken out in the width direction of the housing, that is, in the direction along the wall portion on the long side of the housing. An electric wire is taken out in the direction reversed 90 degree | times with the above-mentioned electric wire taking-out direction.

The electric wire connector according to claim 3 is the electric wire connector according to claim 1 or 2 , wherein a small-diameter core wire exposed portion of the electric wire following the terminal is bent in the orthogonal direction, and the electric wire has a large diameter insulation. The covering portion is routed along the electric wire extraction portion.

  With the above configuration, the small-diameter core wire exposed portion is smoothly bent with a smaller force than in the insulating coating portion. In addition, the insulating coating portion having a flexible insulating coating surface is securely held in the electric wire extraction portion without any displacement by means such as pressing or clamping.

Wire connector according to claim 4 is the electric wire connecting device according to any one of claims 1 to 3, the wire take-out member is constituted by said cover portion and base portion, said side wall on the side wall of the base portion concave recessed are provided than engaging portion of said base portion is provided in said recess, characterized in that the engagement portion of the cover portion is engaged with the engaging portion while being received in the recess And

  With the above configuration, when the locking portion is a locking projection, the base portion is made compact because it is housed in the recess and does not protrude outward from the outer surface of the base portion. Moreover, since the engaging part (for example, engagement frame piece) of a cover part is accommodated in a recessed part and interference with the exterior does not occur, an unexpected latch release is prevented.

  According to the first aspect of the present invention, even when the wire take-out direction changes due to a design change or there is an obstacle in the wire take-out direction, the direction of the wire take-out member is reversed and attached to the housing. It is possible to change the direction of taking out the electric wire easily and reliably. As a result, it is possible to easily deal with design changes, obstacles, and the like at low cost, and to lead the electric wire from the electric wire connector in a desired direction.

  According to the second aspect of the present invention, for example, the electric wire can be taken out in the direction opposite to the obstacle while the housing is brought close to the obstacle in the thickness direction.

Or an electric wire can be taken out in the direction opposite to an obstruction, for example in the state which made the housing approach the obstruction in the width direction.

According to the third aspect of the invention, the exposed core wire exposed portion can be smoothly and reliably bent in a 90 ° direction with a small force, and after the bending, the restoring reaction force of the exposed core wire portion is small. The terminal and the insulation coating portion following the exposed portion can be easily held in the housing and the wire extraction portion without being displaced.

According to the fourth aspect of the present invention, since the protrusion-shaped locking portion is accommodated in the recess and does not protrude outward from the outer surface of the base portion, the base portion, that is, the wire extraction member can be made compact. Thereby, an electric wire connector can be easily mounted in narrow spaces, such as a battery pack of an electric vehicle. Also, by accommodating the engaging part of the cover part in the recess, the interference between the engaging part and the outside is prevented, and the unexpected unlocking, that is, the opening of the cover part is prevented, and the direction of taking out the electric wire is prevented. Can be secured.

It is a perspective view showing one embodiment of an electric wire connector concerning the present invention. It is a disassembled perspective view which similarly shows the housing and electric wire extraction member of an electric wire connector. It is a perspective view which shows the state which inserts the female terminal with an electric wire in a housing. It is a disassembled perspective view which shows the state which closes the cover part of an electric wire extraction member. It is a longitudinal cross-sectional view which similarly shows the taking-out state of the electric wire of an electric wire connector. (A) (b) is a side view which respectively shows the state which set the electric wire extraction direction of the electric wire connector to two directions. (A) (b) is a side view which shows the state which prescribed | regulated the electric wire extraction direction according to the obstruction. It is a perspective view which shows other embodiment of the wire connector which concerns on this invention. (A) (b) is a front view which respectively shows the state which set the electric wire extraction direction of the electric wire connector to two directions. (A) (b) is an exploded perspective view which shows the attachment direction of a bracket for fixation and an electric wire connector, respectively. It is a perspective view which shows one form of the conventional electric wire connector.

  1 to 6 show an embodiment of a wire connector according to the present invention.

  As shown in FIG. 1, the electric wire connector 1 includes a connector 4 that houses a female terminal (terminal) 2 (FIG. 3) with electric wires, a plug (not shown) that is inserted into the connector from an upper opening 5, It is composed of an electric wire extraction attachment attached to the bottom of the connector 4, that is, an electric wire extraction member 6.

  Since the plug is the same as the conventional one, the illustration is omitted. The plug has a conductor such as a fuse inside and a pair of downward male terminals connected to the conductor. The plug 4 slides the driven protrusion 42 of the connector 4 by rotating the lever, and the connector 4 It is inserted and removed with low force.

  The connector 4 includes a housing 7 made of insulating resin and a pair of upward female terminals 2 (FIG. 3) housed in the housing. The housing 7 includes front and rear vertical wall portions 8 and 9, a bottom wall 10 (FIG. 2), two partition walls 11 connecting the front and rear wall portions 8, and left and right empty chambers defined by the partition walls 11. And a pair of terminal accommodating portions 12. The terminal accommodating portion 12 has a terminal accommodating chamber surrounded by a peripheral wall made of insulating resin, and has a flexible lance (not shown) for locking a female terminal in the terminal accommodating chamber.

  As shown in FIG. 2, the terminal accommodating chamber of each terminal accommodating portion 12 has a rectangular shape in the center of the leg wall 13 through the bottom wall 10 and each rectangular annular short leg wall 13 protruding from the outer surface of the bottom wall. Opened as a hole 14. A slit-like opening 12a for inserting a plug-side male terminal (not shown) is provided at the upper end of the terminal accommodating portion 12 in FIG. One hole 15 (FIG. 2) for inserting a bolt is provided in the bottom wall of the middle empty chamber in FIG.

  As shown in FIGS. 1 and 2, a driven protrusion 42 is provided on the upper end side of the front and rear wall portions 8 of the housing 7. Are provided symmetrically. Each locking projection 16 is composed of an inverted concave rib, and has a horizontal locking surface 16b at the upper end following the upper vertical surface 16a (FIG. 2) and a downward inclined surface 16c at the lower half. ing. In addition, in the specification, the directions in the up, down, front, back, left, and right directions are for convenience of explanation, and do not always coincide with the mounting direction of the wire connector 1.

  The wire extraction member 6 in FIG. 1 is composed of a base portion 6a in FIG. 2 and a cover portion 6b in FIG. 4 using an insulating resin as a material. 2 includes a pair of electric wire outlets 18 protruding horizontally from the left and right base main bodies 17 forward (in the thickness direction of the housing 7), and the left and right base main bodies between the electric wire outlets 18. 17 and a flexible connecting portion 19 that is erected on the outer end side of each electric wire extraction portion 18, that is, on the upper right end of the right electric wire extraction portion 18 and on the upper left end of the left electric wire extraction portion 18. A pair of engagement frame pieces (engagement portions) 20 is provided.

  The left and right electric wire extraction portions 18 are symmetrically arranged with the same shape, and the left and right engaging frame pieces 20 are symmetrically arranged with the same shape. Thereby, the same electric wire extraction member 6 can be selectively reversed and attached to the housing 7 (this will be described in detail in FIG. 6).

  The central connecting portion 19 is disposed lower than the electric wire extraction portion 18, and constitutes a space 21 for inserting a fixing bracket between the bottom wall 10 of the housing 7 as shown in FIG. The length of the connecting portion 19 in the front-rear direction is substantially the same as the length of the housing 7 in the front-rear direction, and the wire extraction portion 18 projects forward from the housing 7.

As shown in FIG. 2, each electric wire outlet 18 has a horizontal upper wall 22 (FIG. 1), left and right vertical side walls 23, a vertical front wall 24, and a lower opening 25. It has a wall 26, left and right wall portions 27, and a rear wall 28, and has an electric wire insertion space inside each wall portion 22-28. A substantially inverted U-shaped opening 29 for taking out the electric wire is provided in the front wall 24, and a pair of left and right electric wire guide walls 30 are provided between the left and right side walls 23, and the opening 29 is formed in a space inside the electric wire guide wall 30. A rectangular opening (hole) 31 for penetrating the electric wire is provided in the upper wall 26 of the base portion main body 17, and the space in the guide wall 30 communicates perpendicularly to the upper opening 31, as shown in FIG. The upper opening 31 communicates with the hole 14 in the bottom wall 10 of the housing 7. Inside the guide wall 30, a plurality of arc-shaped ribs for holding the electric wires are projected.

  As shown in FIG. 1, a pair of engagement frame pieces 20 project upward from the left and right ends of the upper wall 26, the engagement frame pieces 20 are arranged symmetrically, and have a vertically long hole 20a at the center. . The width of the engagement frame piece 20 is as wide as the width of the left and right side walls 9 of the housing 7 and is firmly held so as to sandwich the left and right side walls 9. A positioning rib 32 projects from the side wall 9 of the housing 7 so as to face one end of the engagement frame piece 20. Following the engagement frame piece 20, a rectangular ring-shaped frame wall 33 protrudes upward and downward on the upper wall 26 (FIG. 2), and the leg wall 13 at the bottom of the housing 7 enters and engages in the frame wall 33.

  Each frame wall 33 is arranged symmetrically, and the center of the hole 20 a of each engagement frame piece 20 is located at the center of the side portion of each frame wall 33. An opening 31 for inserting an electric wire in the upper wall 26 of FIG. 2 is located at the center (center) of each frame wall 33. Thereby, the electric wire extraction member 6 can be reversed and used.

  As shown in FIG. 2, the left and right side walls 23 of each electric wire extraction portion 18 are immersed inside, and each side wall 23 is located in a recessed space 35 between the front and rear vertical projecting walls 34, and covers the outer surface of each side wall 23. A locking projection 35 is provided for the portion 6 b (FIG. 4), and the locking projection 35 is located in the recess 36. The outer surface of the side wall 23 on the outer side of each electric wire outlet 18 passes through the stepped protruding wall 34 and continues to the outermost surface (represented by reference numeral 27) of the side wall 27 of the base portion main body 17, and the protruding height of the locking projection 35 is the maximum. It is located lower than the outer surface 27 and the protruding wall 34 (without protruding outward). Thereby, compared with the case where the latching protrusion 35 protrudes outside from the outermost surface 27, the base part 6a (electric wire extraction member 6) is made compact in the horizontal width direction.

  Further, the rear walls 28 of the left and right base portion main bodies 17 are recessed inwardly in the same manner as the side walls 23 of the wire extraction portion 18, and locking protrusions (locking portions) for the cover portion 6 b are formed in the recesses 36. ) 35 (FIG. 5). Thereby, compared with the case where it does not have the recessed part 36, the electric wire extraction member 6 is compactized in the front-back direction. Each locking projection 35 has a downward inclined surface and an upward horizontal locking surface. The electric wire extraction member 6 can be made compact, so that the electric wire connector 1 can be easily mounted in a narrow space on the battery pack side, and the amount of resin material used can be reduced.

  As shown in FIG. 4, the cover portion 6 b includes a horizontal substrate portion 38 formed in a substantially U shape in plan view corresponding to the base portion 6 a, left and right ends of the left and right protruding plate portions 39 of the substrate portion 38, and A flexible engaging frame piece (engaging portion) 40 erected upward from the rear end of the substrate portion 38 and a protruding wall 41 having an arc surface for pressing the electric wire protruding upward from the protruding plate portion 39. And.

  As shown in FIG. 1, the engagement frame pieces 40 are engaged with the locking projections 35 in the recesses 36 of the base portion 6 a, so that the electric wire extraction member 6 can be made compact. Further, the front and rear ends of the left and right engagement frame pieces 40 and the left and right ends of the rear engagement frame pieces are close to and opposed to the projecting walls 34 on both sides of the recess 36, respectively, so that the engagement frame pieces 40 interfere with the outside. It is difficult to raise, and unintentional unlocking is prevented.

  The base portion 6a is assembled and locked to the housing 7 in the direction of the arrow in FIG. 2, and the electric wire 3 with each female terminal is inserted into the housing through the hole 34 of the base portion 6a in the direction of the arrow in FIG. As shown in FIGS. 4 and 5, the electric wire 3 is bent in the direction of 90 ° toward the front, led out from the opening 29 at the front end while being routed horizontally in the electric wire extraction portion 18, and the cover portion 6b is moved in the direction of the arrow. 1 to obtain an assembly of the connector 4 and the wire extraction member 6 in FIG. 1 (also referred to as a wire connector in the state of FIG. 1 before the plug is inserted).

  As shown in FIG. 5, the female terminal 2 is positioned vertically in the housing 7, and the exposed core wire (conductor) exposed portion 3 a following the crimp portion of the lower half of the female terminal 2 is bent forward by 90 °. Then, the insulating covering portion 3b covering the core wire portion 3a is horizontally disposed and taken out (derived) from the front opening 29.

  By bending the small-diameter core wire exposed portion 3a instead of the large-diameter insulating coating portion 3b, the electric wire 3 can be bent smoothly and reliably with a small force, and the cover portion 6b resulting from the bending restoring force of the electric wire 3 can be obtained. There is no need to worry about the difficulty of closing or unlocking. In addition, the electric wire 3 is not led straight downward as in the prior art (FIG. 11), but is bent in a 90 ° direction, so that external vibration of the vehicle or the like and the tensile force of the electric wire 3 from the outside can be applied to the female terminal. 2 and the reliability of contact with the male terminal (not shown) of the conductor in the plug is improved.

  In FIG. 5, the insulation distance L1 from the core wire bending portion of the electric wire 3 to the rear lower end of the base portion 6a and the insulation distance L2 from the exposed end of the core wire 3a (tip of the insulating coating 3b) to the front end of the base portion 6a are specified. Is sufficiently large.

  As shown in FIGS. 6 (a) and 6 (b), the electric wire extraction member 6 is selectively reversed and attached to the housing 7, thereby setting the electric wire 3 to be taken out in one of two desired directions. Can do. This is because the pair of left and right engaging frame pieces 20 are arranged symmetrically, the pair of left and right electric wire extraction portions 18 are arranged symmetrically, and the pair of hole portions 14 and openings 31 (FIG. 2) for inserting the electric wires are symmetrical. It is possible by a configuration in which the pair of left and right frame walls 33 are arranged symmetrically, and the centers of the hole 14, the opening 31, the engagement frame piece 20, and the frame wall 33 are located on the same virtual vertical plane. ing.

  FIG. 6A corresponds to FIG. 1, and FIG. 6B shows a state in which the electric wire extraction member 6 is reversed and attached to FIG. In FIG. 6, reference numeral 16 denotes a locking projection of the housing 7, 40 denotes a small engagement frame piece of the cover portion 6b, and 35 denotes a small locking projection of the base portion 6a.

  As shown in FIGS. 7 (a) and 7 (b), the wire 3 is not led out to the lower side of the wire connector 1 regardless of the direction in which the wire 3 is taken out. There is no hindrance. When there is an obstacle 44 on the rear side of the wire connector 1 as shown in FIG. 7 (a), the wire take-out member 6 is reversed and attached to the housing 7 as shown in FIG. 7 (b). As a result, the interference between the rear obstacle 44 and the electric wire 3 can be prevented, and the electric wire 3 can be routed smoothly.

  8-10 shows other embodiment of the electric wire connector which concerns on this invention.

  Compared with the wire connector 1 in the example of FIG. 1, the wire connector 51 is not arranged in the front-rear direction, that is, the thickness direction of the housing 7, but in the left-right direction, that is, the wide front and rear wall portions of the housing 7. This is the direction along the width (width direction).

  Since the structure of the connector 4 is the same as the example of FIG. 1, the same code | symbol is attached | subjected to the same component and description is abbreviate | omitted. The internal structure of the electric wire extraction member 52 is basically the same as that shown in FIGS. The same reference numerals are given to the same parts as those of the wire extraction member 6 in FIG.

  As shown in FIG. 8, the electric wire extraction member 52 includes an insulating resin base portion 52 a and a cover portion 52 b, and the base portion 52 a protrudes rightward from the left and right base portion main bodies 53 and the base portion main bodies 53. Each electric wire extraction portion 54 and a central connecting portion 55 that connects the left and right base portion main bodies 53 are configured.

  The bracket 57 of FIG. 10 is inserted into the space 21 (FIG. 9) on the upper side of the connecting portion 55, the bolt 58 is inserted through the hole portion 57a of the bracket 57 and the hole portion 15 of the bottom wall 10 of the housing 7, The bracket 57 is fastened and fixed to the nut 57b on the back surface side.

  The left and right base portion main bodies 53 in FIG. 8 have a horizontal upper wall and front, rear, left and right vertical wall portions, and the upper wall has a width in the front-rear direction substantially the same as the thickness in the front-rear direction of the housing 7. 7 has a width in the left-right direction substantially the same as the width in the left-right direction.

  Each engagement frame piece 20 is erected on the left and right ends of the upper wall, and each engagement projection 16 of the housing 7 is engaged with each engagement frame piece 20. A pair of rectangular frame walls 33 project from the left and right of the upper wall, and the leg wall 13 at the bottom of the housing 7 is engaged in the frame wall. At the center of the frame wall 33, an opening (hole) 14 for penetrating the electric wire is provided on the upper wall, and the opening 14 communicates with the inner space of each electric wire extraction portion 54 through the inner space of the base portion main body 53.

  A first electric wire extraction portion 54 is integrally provided at substantially the center of the front wall 53a, and a second electric wire extraction portion 54 is integrally provided on the right wall 53b. Each electric wire extraction portion 54 faces the right direction parallel to the steps, has an electric wire extraction opening 29 at the tip (right end), and the electric wire 3 is taken out (derived) rightward from each opening 29.

  The front right wall 54a of the first electric wire extraction portion 54 is positioned in a step shape perpendicular to the front wall 53a of the base portion main body 52a, and the proximal end of the second electric wire extraction portion 54 is the right wall 53b of the base portion main body 53. It continues to one. The lower end of the base part main body 52a, the lower end of each electric wire extraction part 54, and the lower end of the connection part 55 are located on the same horizontal plane. The base end 54b of the first electric wire extraction portion 54 is bent backward and intersects with the front wall 53a of the base portion main body 53, and the second electric wire extraction portion 54 is straight from the right wall 53b of the base portion main body 53. It protrudes in the base part longitudinal direction (right direction).

  The front wall 54a of the first electric wire extraction portion 54, the front and rear wall portions of the second electric wire extraction portion 54, and the rear wall 53c of the base body 52a of FIG. A flexible locking frame portion (locking portion) 59 is provided in the recess 36, and an engaging claw (engaging portion) 60 of the cover portion 52 b enters and engages each locking frame portion 59. The locking frame portion 59 is composed of left and right wall portions and front and rear low wall portions, and constitutes a claw portion entry space penetrating in the vertical direction between the electric wire extraction portion 54 and the back wall of the base portion main body 53. To do.

  The left and right protruding walls 34 of the electric wire extraction portion 54 are positioned in close proximity to the left and right wall portions of the locking frame portion 59, and the front end surface of the protruding wall 34 is the same as the outermost surface of the wall portion such as the electric wire extraction portion 54. The locking frame portion 59 is protected from interference with the outside by the protruding wall 34 and is prevented from being unexpectedly released. Since the locking frame portion 59 is positioned in the recess 36, the base portion 52a (the electric wire extraction member 52) is made compact in the front-rear direction as well as protecting the locking frame portion 59.

  The electric wire 3 accommodated horizontally in the first electric wire extraction portion 54 is bent in the horizontal direction on the proximal end side 54b of the electric wire extraction portion 54, and upwards in the 90 ° direction below the opening 31 for electric wire penetration on the upper wall. The electric wire 3 bent horizontally to the one female terminal 2 in the housing 7 and horizontally accommodated in the second electric wire extraction portion 54 is directed upward in the 90 ° direction below the electric wire penetration opening 31 on the upper wall. To the other female terminal 2 in the housing. The electric wire 3 is bent at the small-diameter core wire exposed portion 3a, and the large-diameter insulating coating portion 3b is routed horizontally.

  As shown in FIGS. 9 (a) and 9 (b), the wire take-out member 52 is selectively reversed and attached to the same housing 7 so that the take-out direction of the wire 3 is set to any desired left or right direction. can do. This is because, like the embodiment of FIG. 1, the left and right locking frame pieces 20 are arranged symmetrically, and the left and right frame walls 33 and the inner wire penetration openings 31 are arranged symmetrically. It is.

  As shown in FIGS. 10A and 10B, the bracket 57 on the battery pack side can be inserted into the same wire connector 1 from two different directions (front and rear directions). Actually, since the bracket 57 is fixed to the battery pack side, it can be fixed to the same bracket 57 in a state where the electric wire extraction member 52 is reversed left and right and assembled to the connector housing 7.

  The central plate portion 57 c of the bracket 57 is inserted into the upper space 21 of the central connecting portion 55 of the electric wire extraction member 52, and is fastened and fixed with bolts 58. The central plate portion 57c is provided with a hole portion 57a for inserting a bolt and a nut 57b on the back surface side. The left and right plate portions 57 d of the bracket 57 are located on the left and right outer sides of the housing 7.

  In each of the above-described embodiments, the connector housing 7 is the same (common), and therefore the wire extraction member 6 of FIG. 1 and the wire extraction member 52 of FIG. Thus, it is possible to take out the electric wires in four directions in the front, rear, left and right directions.

  Since the electric wire connector 1 of each said embodiment uses the female terminal 2, compared with the case where an L-shaped male terminal (not shown) is used, for example, a relay terminal becomes unnecessary (male terminal's). In this case, it is connected to the male terminal of the plug via a relay terminal), and the structure is simplified and made compact. In addition, while the insulation distance between the male terminal and the outer wall of the base portion 6a tends to be short, the insulation distances L1 and L2 between the core wire exposed portion 3a of the electric wire 3 and the outer wall of the base portion 6a are sufficiently long. Secured.

  In each of the above embodiments, the wire connector 1 has been described as a service plug. However, the wire connector 1 may be applied to a connector of a wire harness, a connector for connecting devices, or the like instead of the service plug. Is possible. In this case, a mating connector having a male terminal is used instead of the plug having a fuse (the mating connector is not a part of the wire connector 1).

  When the wire connector 1 is large, two pairs of the locking projections 16 of the housing 7 are arranged symmetrically, and two pairs of the engaging frame pieces 20 of the wire extraction members 6 and 52 are arranged symmetrically. Is also possible. Further, a locking claw, a flexible locking arm or the like is used as the locking portion instead of the locking projection 16, or an engaging groove, an engaging hole or a locking surface is used as the engaging portion instead of the engaging frame piece 20. It is also possible to use a joint recess or the like.

  Moreover, the above-described configuration of the present invention is effective not only as an electric wire connector but also as an electric wire extraction structure of the electric wire connector, an electric wire extraction method of the electric wire connector, and the like.

  The electric wire connector according to the present invention can be used, for example, as a service plug for shutting off a power source during maintenance of a battery pack of an electric vehicle including a hybrid car. Other than the service plug, it can also be used as a connector for a wire harness, a connector for device connection, or the like.

1,51 Wire connector 2 Female terminal (terminal)
3 Electric wire 3a Core wire exposed portion 3b Insulation coating portion 6, 52 Electric wire extraction member 6a, 52a Base portion 6b, 52b Cover portion 7 Housing
14 holes 16 locking protrusion (locking portion)
18, 54 Electric wire extraction part 20 Engagement frame piece (engagement part)
31 Opening 35 Locking protrusion (Locking part)
36 recess 40 engagement frame piece (engagement part)
59 Locking frame (locking part)
60 engaging claw (engaging part)

Claims (4)

A housing for inserting and housing a pair of terminals with electric wires, and an electric wire extraction member attached to the bottom of the housing , the housing having a pair of holes for terminal insertion and electric wire penetration on the bottom wall; The wire take-out member is provided on a pair of wire take-out portions protruding in a direction perpendicular to the insertion direction of the terminal, and on each upper wall of the pair of wire take-out portions, and communicates the inside of the wire take-out portion with the hole portion. A pair of openings for inserting and penetrating terminals to be connected, a cover portion for covering the lower opening of each wire extraction portion so as to face each upper wall, and a pair of symmetrical engagements with a pair of symmetrical locking portions of the housing The electric wire connector is characterized in that it has a joint portion and can be selectively mounted on the housing after being inverted 180 °. The electric wire connector according to claim 1, wherein the electric wire extraction portion protrudes in a thickness direction or a width direction of the housing. The small-diameter core wire exposed portion of the electric wire following the terminal is bent in the orthogonal direction, and the large-diameter insulating coating portion of the electric wire is routed along the electric wire outlet portion. Or the electric wire connector of 2 . The wire take-off members is constituted by said cover portion and the base portion, the concave portion recessed than the side walls provided on the side wall of the base portion, the locking portion of the base portion is provided in the recess, the cover wire connector according to any one of claims 1 to 3, the engagement portion of the part which is characterized in that to engage the locking portion while being housed in the recess.

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