JP6431518B2 - connector - Google Patents

Description

  The present invention relates to a connector such as a lever-type connector in which both male and female housings are fitted and detached with a low insertion force by operating a lever.

  As this type of connector, there is one disclosed in Patent Document 1.

  As shown in FIG. 33, the connector 1 is a lever-type connector. A female connector 2 in which a housing body 2b of a female housing 2a is fitted in a hood portion of a male housing of a mating connector (not shown), and the female housing 2a By moving from the temporary locking position on the front side of the housing main body 2b to the main locking position completely attached to the housing main body 2b, the insertion of the female terminal 3 is detected together with a flexible lance and a detection plate 4a (not shown). Front holder 4 that performs double locking, annular packing 5 that seals between the hood portion of the male housing and the housing main body 2b of the female housing 2a, and a rectangular cylindrical member housing portion 2c at the rear of the housing main body 2b A mat seal 6 that seals a plurality of terminal accommodating chambers 2d formed in the housing body 2b by being fitted therein, and a member accommodating portion 2c A mat seal cover 7 that is fitted into the mat seal 6, a cover 8 that is attached to the rear end of the member accommodating portion 2 c, and a pair of support shafts 2 e and 2 e that protrude from the upper and lower surfaces of the housing body 2 b. And a lever 9 having a cam groove 9c in the arm portion 9b that engages with a cam follower formed in the hood portion of the male housing.

  Then, by operating the operating portion 9a of the lever 9, the male housing of the male connector and the female housing 2a of the female connector 2 are fitted and detached with a low insertion force, and a plurality of male terminals accommodated in the male housing at the time of the fitting. Are electrically connected to the female terminals 3 accommodated in the plurality of terminal accommodating chambers 2d of the female housing 2a. The mat seal 6 and the mat seal cover 7 are formed with a plurality of terminal insertion holes 6a and 7a into which the female terminals 3 with electric wires are inserted.

JP-A-2005-123102 JP 2008-108662 A

  In the conventional connector 1, the locking elastic arm 4 b that is provided on both side walls of the front holder 4 and serves as both temporary locking and main locking, which is used as a cantilever, is locked to the locking protrusion 2 f of the housing body 2 b. As a result, the front holder 4 has been shifted from the temporary locking position on the front side of the housing body 2b to the fully locked position completely attached to the housing body 2b. The release jig is inserted into the locking elastic arm 4b and the locking elastic arm 4b is released in the same direction, so the front holder 4 is released simultaneously with the release of the main holder 4 by the releasing jig. 4 was difficult to move to the temporary locking position on the front side of the housing body 2b, and workability was poor. Further, since the latching elastic arm 4b is cantilevered, there is a concern that the latching elastic arm 4b may be damaged if it is lifted too much by the release jig.

  Therefore, the present invention has been made to solve the above-described problems, and improves the work at the time of releasing the main holder by changing the insertion direction of the release jig and simplifying the release operation. An object of the present invention is to provide a connector that can be used.

  According to the first aspect of the present invention, there is provided one housing in which a plurality of terminal accommodating chambers for accommodating a plurality of terminals are formed, a plurality of terminals fitted and accommodated in the one housing, and a plurality of terminals in the one housing. And the other housing, together with other locking means, by moving from the temporary locking position on the front side of the one housing to the final locking position mounted on the one housing. A connector having a front holder for detecting midway insertion of a terminal, wherein the front holder is provided with a jig insertion port of a release jig for releasing the state of the main locking position, and the jig insertion port Is provided in a direction orthogonal to the moving direction from the temporary locking position to the main locking position.

  The invention according to claim 2 is the connector according to claim 1, wherein the mat seal is mounted on the rear surface side of the one housing and seals the plurality of terminal accommodating chambers, and is mounted on the rear surface side of the one housing. And a mat seal cover that covers the mat seal, and the edge of the terminal insertion hole formed at a position corresponding to the terminal accommodating chamber of the mat seal cover is formed in a curved shape.

  The invention according to claim 3 is the connector according to claim 1, wherein the housing body of the one housing is formed in a rectangular shape having the plurality of terminal accommodating chambers, and the front holder is fitted to the outside of the housing body. And a rib that fills the gap between the housing body and the peripheral wall of the front holder is detected by the interference between the other locking means on the outside and the outside of the front holder. It is characterized in that it is provided at a position that cancels the tilt load generated by the interference of the plates.

  According to a fourth aspect of the present invention, there is provided the connector according to the first aspect, wherein the lever is supported by the one housing via a support shaft and has a cam groove that engages with the cam follower of the other housing; A mat seal for sealing the plurality of terminal accommodating chambers on the rear surface side of the housing, a mat seal cover mounted on the rear surface side of the one housing so as to cover the mat seal, and a cover for covering the mat seal cover A cover mounted on a rear surface side of the one housing, and a rail rib is formed on the one housing, and a lower end portion of a side wall forming an opening of the cover is formed along the rail rib. An opening preventing lid that is slidable and prevents the opening of the side wall of the cover by sandwiching the lower end of the side wall of the cover at a position facing the rib for the rail. Characterized in that the formation of the.

  The invention according to claim 5 is the connector according to claim 1, wherein a guide surface for guiding the tip of the release jig to the jig insertion port is formed in front of the jig insertion port of the front holder. It is characterized by that.

  A sixth aspect of the present invention is the connector according to the first aspect, wherein the front holder has a temporary engagement portion that is engaged with a temporary engagement portion formed in the housing body on the peripheral wall portion of the front holder. Each of the elastic arms for stopping and the elastic arms for main locking in the form of doubly-supported beams each having a main locking portion that is locked and detached from the main engaging portion formed on the housing body are formed. The tip of the release jig is inserted into a tool insertion port so that the locked state between the main locking portion of the main locking elastic arm and the main engaging portion of the housing body can be released freely. .

  As described above, according to the first aspect of the present invention, the front holder is provided with the jig insertion port of the release jig for releasing the state of the final locking position, and the jig insertion port is set to the temporary locking position. By providing in a direction orthogonal to the direction of movement from the main locking position to the main locking position, it is possible to simplify the cancellation of the state of the main locking position of the front holder into one operation of insertion / release of the releasing jig. In addition, the front holder can be operated from the final locking position to the temporary locking position with the release jig.

  According to the invention of claim 2, the edge of the terminal insertion hole formed at a position corresponding to the terminal accommodating chamber of the mat seal cover is formed in a curved shape, so that the female terminal can be inserted into the terminal insertion hole. In addition, the electric wire can be reliably protected when the electric wire is rubbed due to vibration.

  According to the invention of claim 3, the housing main body of one housing is formed in a rectangular shape having a plurality of terminal accommodating chambers, and the front holder is formed in a box shape having an open rear side that is fitted to the outside of the housing main body. A rib that fills the gap between the main body and the peripheral wall of the front holder is provided at a position that offsets the inclined load generated by the interference between the other locking means outside and the detection plate outside the front holder due to the interference. By the interference between the peripheral wall portion of the front holder and the rib of the housing body, the inclination of the front holder at the main locking position attached to the housing body can be corrected, and a plurality of terminals arranged in parallel in the left-right direction Warpage deformation of the rows of the storage chambers can be suppressed. Thereby, the fitting workability | operativity to the other housing of one housing can be improved.

  According to the invention of claim 4, the rail rib is formed on one housing, the lower end portion of the side wall forming the opening of the cover is slidably provided along the rail rib, and the rail rib is provided on the rail rib. By forming a rib for preventing opening to prevent the opening of the side wall of the cover by sandwiching the lower end portion of the side wall of the cover at an opposing position, when vibration is applied to the female housing, outward of the pair of side walls of the cover Opening and deformation can be prevented easily and reliably, and the fluctuation of the electric wire can be suppressed.

  According to the invention of claim 5, the guide surface for guiding the tip of the release jig to the jig insertion port is formed in front of the jig insertion port of the front holder, so that the tip of the release jig is guided. It can be easily and reliably inserted into the jig insertion port through the surface.

  According to the invention of claim 6, the temporary locking elastic arm having the temporary locking portion engaged with the temporary engagement portion formed in the housing body of the female housing on the peripheral wall portion of the front holder, and the female A double-supported beam-like elastic arm with a main locking part that is locked and detached from the main engaging part formed on the housing body of the housing is formed and released to the jig insertion port. By inserting the tip of the jig so that the locked state between the main locking portion of the main locking elastic arm and the main locking portion of the housing body can be released freely, the front holder is attached to the housing body of the female housing. The temporary locking state and the main locking state can be easily and reliably performed, and the main locking elastic arm is doubly-supported and has arm strength. The elastic arm for locking can be prevented from being damaged. In it is possible to obtain a highly reliable locking construction.

It is a disassembled perspective view which shows the lever-type connector of one Embodiment of this invention. It is sectional drawing of the male connector used for the said lever-type connector. It is a disassembled perspective view of the female connector used for the said lever-type connector. It is a disassembled side view of the said female connector. It is a front view of the female connector. It is sectional drawing which follows the DD line in FIG. FIG. 6 is a cross-sectional view of the front holder along the line FF in FIG. 5 in a temporarily locked state. FIG. 6 is a cross-sectional view of the front holder along the line F-F in FIG. It is sectional drawing of the female connector in which the said front holder is temporarily latched. It is sectional drawing of the female connector in which the said front holder is this latching state. It is a front view of the female connector which removed the said front holder. It is the perspective view which looked at the said female connector from the electric wire holding part side of the cover. (A) is a perspective view which shows the state before inserting a cancellation | release jig | tool into the said female connector, (b) is an expanded sectional view of the principal part of the same state. (A) is a perspective view which shows the state which inserted the releasing jig | tool into the said female connector and released the lock | rock, (b) is an expanded sectional view of the principal part of the same state. (A) is the perspective view which looked at the said female connector from the mat seal cover side, (b) is sectional drawing of the female connector. It is a fragmentary perspective view of the periphery of the terminal insertion hole of the said mat seal cover. It is sectional drawing which follows the SS line | wire in FIG. It is sectional drawing which follows the QQ line in FIG. It is sectional drawing which follows the RR line | wire in FIG. It is a fragmentary sectional view which shows the contact state of the terminal insertion hole of the said mat seal cover, and an electric wire. It is the side view which looked at the said female connector from the operation part side of the lever. It is a top view before the lever operation of the said female connector. The cover along the line JJ in FIG. 21 is a cross-sectional view before sliding. It is sectional drawing after the cover in alignment with the JJ line in FIG. 21 slides. The cover along the line KK in FIG. 21 is a cross-sectional view before sliding. It is sectional drawing after the cover in alignment with the KK line in FIG. 21 slides. FIG. 22 is a cross-sectional view of the cover taken along line NN in FIG. 22 before locking. FIG. 22 is a cross-sectional view after locking the cover along the line NN in FIG. 22. It is sectional drawing which follows the MM line | wire in FIG. It is a side view which shows the state by which the opening and deformation | transformation of the said cover were suppressed. (A) is a bottom view of the cover of another embodiment, and (b) is a cross-sectional view taken along the line GG in FIG. (A) is sectional drawing before the slide of the cover of another aspect, (b) is sectional drawing after the slide of the cover. It is the disassembled perspective view which looked at the conventional lever type connector from the rear side.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 is an exploded perspective view showing a lever-type connector according to an embodiment of the present invention, FIG. 2 is a sectional view of a male connector used in the lever-type connector, and FIG. 3 is an exploded perspective view of a female connector used in the lever-type connector. 4 is an exploded side view of the female connector, FIG. 5 is a front view of the female connector, FIG. 6 is a sectional view taken along line DD in FIG. 5, and FIG. 7 is a front view taken along line FF in FIG. 8 is a cross-sectional view of the front holder along the line F-F in FIG. 5, and FIG. 9 is a cross-sectional view of the female connector in which the front holder is temporarily locked. FIG. 10 is a cross-sectional view of the female connector with the front holder in the fully locked state, FIG. 11 is a front view of the female connector with the front holder removed, and FIG. 12 is a view of the female connector from the wire holding portion side of the cover. FIG. 13A is a perspective view, and a release jig is inserted into the female connector. FIG. 13B is an enlarged cross-sectional view of the main part in the same state, FIG. 14A is a perspective view showing a state in which the unlocking jig is inserted into the female connector and the lock is released, 14 (b) is an enlarged cross-sectional view of the main part in the same state, FIG. 15 (a) is a perspective view of the female connector viewed from the mat seal cover side, and FIG. 15 (b) is a cross-sectional view of the female connector. 16 is a partial perspective view of the periphery of the terminal insertion hole of the mat seal cover, FIG. 17 is a cross-sectional view taken along line SS in FIG. 16, FIG. 18 is a cross-sectional view taken along line Q-Q in FIG. 17 is a cross-sectional view taken along line RR in FIG. 17, FIG. 20 is a partial cross-sectional view showing a contact state between the terminal insertion hole of the mat seal cover and the electric wire, and FIG. 22 is a plan view of the female connector before operating the lever, and FIG. 23 is a cover along the line JJ in FIG. 24 is a cross-sectional view after the slide along the line JJ in FIG. 21, and FIG. 25 is a cross-sectional view before the slide along the line KK in FIG. 21, and FIG. 21 is a cross-sectional view after the cover along the line KK in FIG. 21 is slid, FIG. 27 is a cross-sectional view before the lock is taken along the line NN in FIG. 22, and FIG. 28 is a cross-sectional view along the line NN in FIG. 29 is a sectional view taken along line MM in FIG. 22, and FIG. 30 is a side view showing a state in which the opening and deformation of the cover are suppressed.

  As shown in FIG. 1, the lever-type connector (connector) 10 includes a male connector 20 and a female connector 30 that can be fitted and detached with a low insertion force by operating a lever 90.

  As shown in FIGS. 1 and 2, the male connector 20 includes a male housing (the other housing) 21 made of synthetic resin. The male housing 21 is composed of a horizontally long and substantially box-shaped housing main body 22 having an open rear surface, and a pair of left and right hood portions 25 and 25 integrally formed on the front wall portion 23 of the housing main body 22.

  As shown in FIG. 2, terminal housing holes 24 for housing a plurality of male terminals 27 are formed in a plurality of stages in parallel in the upper, lower, left and right positions at positions facing each hood portion 25 of the front wall portion 23 of the male housing 21. ing. In addition, on the upper and lower surfaces of each hood portion 25, an elliptical columnar cam follower 26 that is engaged with a cam groove 94 formed in the lever 90 is provided. Then, by operating the lever 90, the female housing 31 of the female connector 30 is fitted into each hood portion 25 of the male housing 21, so that the plurality of male terminals 27 accommodated in the male housing 21 and the female connector 30 are female. A plurality of female terminals 47 accommodated in the housing 31 are electrically connected.

  As shown in FIGS. 3 to 6, the female connector 30 includes a female housing (one housing) 31 made of synthetic resin in which a plurality of terminal accommodating chambers (cavities) 37 for accommodating the female terminals 47 are formed, and the female connector 30. By moving from the temporary locking position on the front side of the housing main body 32 of the housing 31 to the final locking position completely attached to the housing main body 32, the female terminal 47 is inserted along with the flexible lance 38 and the detection plate 54. A synthetic resin front holder 50 that performs detection and double locking, a rubber annular packing 59 that seals between the hood 25 of the male connector 20 and the housing body 32 of the female housing 31, and the housing body 32 A mat seal 60 made of rubber or the like that seals the plurality of terminal accommodating chambers 37 by being fitted in the rear rectangular tube cylindrical portion 33, and is fitted in the cylindrical portion 33. The mat seal cover 70 made of synthetic resin that covers the nut seal 60, the cover 80 made of synthetic resin attached to the rear end side of the cylindrical portion 33, and the central rear portion of the upper and lower surfaces of the housing body 32 are integrally projected. And a synthetic resin lever 90 having a cam groove 94 engaged with the cam follower 26 of each hood portion 25 of the male housing 21, which is swingably supported via a pair of support shafts 36, 36. .

  As shown in FIGS. 3 and 6, the housing body 32 of the female housing 31 is formed in a rectangular parallelepiped shape (rectangular shape) in which terminal housing chambers 37 for housing a plurality of female terminals 47 are formed in a plurality of stages in parallel vertically and horizontally. ing. A flexible lance (another locking means) 38 that locks the female terminal 47 accommodated in each terminal accommodating chamber 37 is cut out on the upper side of the terminal accommodating chamber 37 of the housing body 32. A detection plate insertion hole 39 into which the detection plate 54 of the front holder 50 is inserted is formed at a position facing the tip of each lance 38 on the front side of the housing body 32.

  As shown in FIG. 10, when the female terminal 47 is completely inserted into the terminal accommodating chamber 37 of the female housing 31, the box portion 47 a of the female terminal 47 is locked by the flexible lance 38. The latching state of the lance 38 is maintained by the lower surface 54a of the detection plate 54 of the front holder 50, whereby the female terminal 47 is double-locked. Further, when the female terminal 47 is inserted in the terminal accommodating chamber 37 of the female housing 31 in an intermediate state, the intermediate insertion state of the female terminal 47 is detected by the interference between the lance 38 and the detection plate 54. It has become.

  Further, as shown in FIG. 11, a gap T between the lower surface 32 b of the housing main body 32 and the bottom side of the peripheral wall portion 52 of the front holder 50 is filled at both ends of the lower surface 32 b of the housing main body 32 of the female housing 31. The ribs 40 are formed so as to project integrally. That is, each rib 40 is provided at a position that cancels the tilt load generated by the interference between the outer lance 38 and the outer detection plate 54 of the front holder 50 due to the interference, as shown in FIG. Each rib 40 is formed in a block shape, and its outer end surface 40 a is a curved tapered surface and is in contact with the inner surface on the bottom side of the peripheral wall portion 52 of the front holder 50. A plurality of ribs 41 are integrally formed at predetermined intervals on the lower surface 32b of the housing body 32 between the pair of ribs 40, 40, respectively. Each rib 41 located on the center side is formed to be higher than each rib 40 on both ends.

  As shown in FIGS. 3 and 6, the front holder 50 is formed in a synthetic resin box shape having an open rear side that is fitted to the outside of the housing body 32 of the female housing 31. That is, the front holder 50 is formed in a rectangular box shape by the flat plate portion 51 and the peripheral wall portion 52, and the peripheral wall portion 52 is attached to the outer periphery of the housing main body 32 of the female housing 31. A plurality of terminal insertion holes 53 into which the male terminals 27 of the male connector 20 are inserted are formed in the flat plate portion 51 of the front holder 50. Further, as shown in FIG. 9, a detection plate 54 to be inserted into each detection plate insertion hole 39 of the housing body 32 is formed at a position facing the tip of each lance 38 on the inner surface 51 a side of the flat plate portion 51. is there.

  Further, as shown in FIGS. 3, 7, and 8, provisional engagement recesses formed on both side surfaces 32 c and 32 c of the housing main body 32 of the female housing 31 are provided above and below both sides of the peripheral wall portion 52 of the front holder 50. A temporary locking elastic arm 55 having a temporary locking projection (temporary locking portion) 55a to be engaged with the (temporary engagement portion) 43 is integrally formed. Further, in the center of both sides of the peripheral wall portion 52 of the front holder 50, the main engagement holes (main engagement portions) 44 formed in the both side surfaces 32c, 32c of the housing main body 32 of the female housing 31 are locked and detached. A doubly-supported elastic arm 57 for main locking having a main locking protrusion (main locking portion) 57a is integrally formed.

  As shown in FIGS. 12 to 14, the double-supported elastic arm 57 for main locking is a jig insertion as a releasing portion of the releasing jig 58 for releasing the state of the main locking position of the front holder 50. A mouth 57b is provided on the inner side of the main locking projection 57a. The jig insertion port 57b is provided in a direction orthogonal to the moving direction from the temporary locking position of the front holder 50 to the final locking position (the insertion direction of the conventional release jig). Further, a guide surface 52a for guiding the tip 58a of the release jig 58 to the jig insertion port 57b is formed in front of the jig insertion port 57b of the peripheral wall portion 52 of the front holder 50. Accordingly, as shown in FIG. 14, the tip 58a of the release jig 58 is inserted into the jig insertion port 57b, and the main locking projection 57a of the main locking elastic arm 57 and the main body 32 of the female housing 31 are inserted. The locked state with the engagement hole 44 can be released freely.

  As shown in FIGS. 3 and 6, the packing 59 is made of rubber and formed in a square ring shape, and is attached to a stepped portion 32 d formed in the housing main body 32 of the female housing 31. This seals the hood portion 25 of the male connector 20 fitted between the housing main body 32 of the female housing 31 and the frame plate-shaped outer cover portion 35 that is integrally formed to protrude outward from the housing main body 32. .

  As shown in FIGS. 3, 6, and 15 (b), the mat seal 60 is made of rubber and has a rectangular plate shape. A terminal insertion hole 61 into which the female terminal 47 with the electric wire 48 is inserted is formed at a position corresponding to each terminal accommodating chamber 37 of the female housing 31 of the mat seal 60.

  As shown in FIGS. 3, 6, 15A and 15B, the mat seal cover 70 is made of a synthetic resin and is formed in a rectangular plate shape. A terminal insertion hole 71 into which the female terminal 47 with the electric wire 48 is inserted is formed at a position corresponding to each terminal accommodating chamber 37 of the female housing 31 of the mat seal cover 70.

  As shown in FIGS. 16 to 20, the stabilizer 47 b provided in the box portion 47 a of the female terminal 47 is inserted into the terminal insertion hole 71 formed at a position corresponding to the terminal accommodating chamber 37 of the mat seal cover 70. It has a trough (notch) 72, and the entire circumference of the tapered portion (edge) 71a picked up at the entrance is formed in a curved shape (R shape). In addition, a pair of corners 71b, 71b between the terminal insertion hole 71 and the valley 72 are also formed in a curved shape (R shape). The curved shape of each corner 71b is formed so as to decrease as it goes deeper. In addition, by fitting a protrusion 75 projecting on the outer peripheral side of the front surface 70a of the mat seal cover 70 into a locking hole 65 formed on the outer peripheral side of the mat seal 60, both are positioned and assembled. . Further, the stabilizer 47 b of the female terminal 47 is provided for the purpose of preventing the female terminal 47 from being reversely inserted and preventing the female terminal 47 from protruding to the front surface.

  As shown in FIGS. 3, 6, 22, and 30, the cover 80 protects the plurality of electric wires 48 drawn from the rear surface 70 b of the mat seal cover 70 from being subjected to a mechanical load. The surface facing the rear surface 70b of the mat seal cover 70 and one end surface continuous with the facing surface are formed so as to open. That is, the cover 80 includes a pair of side walls 81 and 81 that form an opening, and a curved ceiling wall 82 having a curved surface, and is attached to the rear end side of the cylindrical portion 33 of the female housing 31. It is formed so that.

  As shown in FIGS. 3, 6, and 29, the front end side of the lower end portion 81 a of the side wall 81 of the cover 80 is erected with a rail rib 33 a that is integrally formed with the rear end portion of the cylindrical portion 33 of the female housing 31. A guide groove 46 between the walls 34 is slid and mounted. Further, an opening preventing rib 81b that prevents the opening of the side wall 81 by sandwiching the rail rib 33a of the standing wall 34 is integrally formed at the lower end portion 81a of the side wall 81 of the cover 80.

  Further, as shown in FIGS. 3, 23, and 24, a pair of positioning ribs 83 and 84 are integrally formed on both sides of the lower end portion 81 a of the side wall 81 of the cover 80. An opening preventing rib 81b is integrally formed on one positioning rib 83 on one end side. As shown in FIG. 25, the front end side of the lower end portion 81a of the side wall 81 of the cover 80 slides on the guide groove 46 between the rail rib 33a of the cylindrical portion 33 of the female housing 31 and the upright wall 34 to prevent the opening. The rib 81b is configured to be received in the recess 70c of the mat seal cover 70. Thus, when the cover 80 is assembled to the female housing 31, the cover 80 can be assembled without the opening prevention rib 81 b interfering with the mat seal cover 70.

  Furthermore, as shown in FIGS. 23, 24, and 29, the leading end of the lower end portion 81 a of the side wall 81 of the cover 80 is a guide groove 46 between the rail rib 33 a and the standing wall 34 of the cylindrical portion 33 of the female housing 31. 3 and 28, the elastic arm-shaped lock portion 85 formed integrally with the lower end portion 81a of the side wall 81 has a protrusion-like covering formed on the cylindrical portion 33 of the female housing 31, as shown in FIGS. The lock portion 45 is locked by being engaged. In FIG. 27, symbol L indicates the slide stroke amount of the cover 80.

  Furthermore, as shown in FIG. 3, an electric wire holding portion 86 for holding a plurality of electric wires 48 that are bundled and wound around a tape is integrally formed in a U-shape so as to protrude from the front end side of the opening of the ceiling wall 82 of the cover 80. It is. As shown in FIG. 1, a pair of restricting portions 88, 88 that restrict the movement of the operating portion 92 of the lever 90 are provided at the outer center of the pair of reinforcing ribs 87, 87 of the electric wire holding portion 86 of the ceiling wall 82. Integrally protruding. As shown in FIGS. 22 and 30, a plurality of electric wires 48 that are bundled and wound around the electric wire holding portion 86 of the cover 80 are fixed via an insulation lock 49.

  As shown in FIGS. 3 and 4, the lever 90 is formed by integrally forming a pair of arm portions 91, 91 and an operation portion 92 that couples the pair of arm portions 91, 91 with a synthetic resin. Each arm portion 91 is formed with a bearing hole 93 that rotatably supports each support shaft 36 that is integrally formed on the upper and lower sides of the female housing 31. Further, each arm portion 91 is formed with a cam groove 94 that is engaged with the cam follower 26 formed in the hood portion 25 of the male housing 21. By operating the operating portion 92 of the lever 90, the male and female housings 21 and 31 are fitted and detached with a low insertion force based on the lever principle through the cam groove 94 and the cam follower 26. Further, as shown in FIG. 1, the lever 90 is held at the rotation restricting position by the operation portion 92 of the lever 90 coming into contact with the restricting portion 88 of the cover 80.

  The male terminal 27 is connected to a core wire of an electric wire (not shown). Further, the core wire 48a of the electric wire 48 is connected to the female terminal 47 by caulking or the like.

  According to the lever-type connector 10 of the above embodiment, as shown in FIGS. 7 and 9, the housing main body 32 in a state where the front holder 50 is temporarily locked to the front side of the housing main body 32 of the female housing 31 of the female connector 30. After inserting the female terminal 47 in which the electric wire 48 is crimped into the terminal accommodating chamber 37, as shown by the arrow A in FIG. 9, when the front holder 50 is pushed to the rear of the housing body 32 of the female housing 31, 8 and FIG. 10, the front holder 50 is completely attached to the housing main body 32, and the female terminal 47 is connected by the flexible lance 38 and the detection plate 54 of the front holder 50. The male connector 20 can be engaged with the hood portion 25 by being heavily locked. The temporary locking state and the final locking state of the front housing 50 with respect to the housing main body 32 of the female housing 31 are the temporary locking elastic arms 55 of the front holder 50 in the temporary engaging recesses 43 of the housing main body 32 of the female housing 31. The temporary locking projection 55a is locked, and the main locking projection 57a of the main locking elastic arm 57 of the front holder 50 is locked in the main engagement hole 44 of the housing body 32 of the female housing 31. Thus, each state can be easily and reliably achieved.

  As shown in FIG. 9, when the front holder 50 is temporarily locked, the peripheral wall portion 52 of the front holder 50 and the ribs 40 provided at both ends of the lower surface 32 b of the housing body 32 of the female housing 31 interfere with each other. Therefore, as shown in FIG. 10, when the front holder 50 shifts to the fully locked state, the amount of interference between the peripheral wall portion 52 of the front holder 50 and the ribs 40 on the lower surface 32 b of the housing body 32 gradually increases. To do.

  When the front holder 50 is fully locked, an inclination load is generated in the direction of arrow B in FIG. 10 due to interference between the lance 38 outside the housing body 32 and the detection plate 54 outside the front holder 50. Since the inclination load is generated in the direction in which the interference of 40 is opposite (arrow C direction in FIG. 10) and the amount of interference is set to be balanced, the inclination of the front holder 50 can be corrected. Further, by bringing the rows of the terminal accommodating chambers 37 formed in parallel in the vertical and horizontal directions of the housing body 32 closer to the vertical symmetry, the rows of the terminal accommodating chambers 37 arranged in parallel in the vertical and horizontal directions are arranged. It is possible to suppress deformation of warpage (a warp whose center becomes higher in a curved shape). Thereby, when the male connector 20 and the female connector 30 are fitted, the male terminal 27 is surely picked up by the female terminal 47, so that the bending of the male terminal 27 can be reliably prevented, and the male terminal 27 and the female terminal can be prevented. 47 can be connected easily and reliably.

  Thus, when the front holder 50 is fully locked, by preventing the front holder 50 from tilting with respect to the housing main body 32 of the female housing 31, the fitting action of the male connector 20 to the hood portion 25 can be improved. it can. Furthermore, by providing ribs 40 on both end sides of the lower surface 32b of the housing main body 32 of the female housing 31, it is possible to suppress warping deformation of the rows of the plurality of terminal accommodating chambers 37 arranged in parallel in the left-right direction. Thus, the fitting effect of the male connector 20 to the hood portion 25 can be improved. Further, as shown in FIG. 9, even when the front holder 50 is temporarily locked, the front holder 50 and the rib 40 interfere with each other, so that the front of the female housing 31 with respect to the housing main body 32 is transported when the female connector 30 is transported. The holder 50 can be reliably prevented from entering.

  Further, as shown in FIGS. 8 and 10, the front holder 50 is in the final locking state when the front holder 50 has a doubly-supported main locking elasticity in the main engagement hole 44 of the housing body 32 of the female housing 31. The main locking projection 57a of the arm 57 is held by being locked and is not easily released. However, when releasing the main locking state of the front holder 50, first, FIG. As shown in FIG. 5, the guide of the front holder 50 is inserted into the jig insertion port 57b provided in the direction perpendicular to the moving direction from the temporary locking position of the front holder 50 to the final locking position in the elastic arm 57 for final locking. Insert the release jig 58 while applying the tip 58a to the surface 52a. Next, the front end 58a of the release jig 58 is pushed into the back surface side of the main locking elastic arm 57, and the main locking elastic arm 57 is lifted, whereby the main engagement hole 44 of the housing main body 32 of the female housing 31 is lifted. The main locking projection 57a of the main locking elastic arm 57 of the front holder 50 is released and released. While holding this released state, the front holder 50 is moved to the front side of the female housing 31 by operating the front end 58a of the releasing jig 58 to the main locking projection 57a of the main locking elastic arm 57 so that the front holder 50 is fully locked. It is possible to shift from the locking position to the temporary locking position.

  In this way, by inserting the tip 58a of the release jig 58 from the temporary locking of the front holder 50 into the jig insertion port 57b of the main locking elastic arm 57 from the direction orthogonal to the operation direction of the main locking, The operation of “insertion” and “unlock” of the release jig 58 can be simplified to one operation of “insertion / unlock”, and the front holder 50 is moved by the release jig 58 instead of the operation of a finger. Since it is possible to operate from the final locking position to the temporary locking position, it is possible to improve workability of unlocking the main locking elastic arm 57.

  Further, the guide surface 52a for guiding the tip 58a of the release jig 58 to the jig insertion port 57b is formed in front of the jig insertion port 57b of the front holder 50, so that the tip 58a of the release jig 58 is It can be easily and reliably inserted into the jig insertion port 57b through the guide surface 52a. Further, since the main locking elastic arm 57 is a double-supported beam and has arm strength, it is possible to prevent the main locking elastic arm 57 from being damaged without providing excessive displacement prevention means, and in a small space. A highly reliable lock structure can be obtained.

  Further, as shown in FIGS. 16 to 20, the entire circumference of the pick-up taper portion 71a, which is the edge portion on the entrance side of the terminal insertion hole 71 of the mat seal cover 70, is formed into an R-shaped curve, thereby inserting the terminal. The female terminal 47 with the electric wire 48 can be easily inserted into the hole 71, and the electric wire 48 can be protected even if the electric wire 48 inserted into the terminal insertion hole 71 is vibrated and picked up and rubbed against the tapered portion 71 a. In particular, in the trough portion 72 where the electric wire 48 is easy to enter, the pair of corner portions 71b and 71b are formed in an R-shaped curved shape, and the curved shape of each corner portion 71b becomes smaller toward the back. Since it is formed, the insertability of the stabilizer 47b of the female terminal 47 can be improved, and the electric wire 48 can be easily and reliably protected when the electric wire 48 is rubbed.

  Further, when the cover 80 is attached to the female housing 31 of the female connector 30, as shown in FIGS. 23 and 25, the rail ribs 33 a of the cylindrical portion 33 of the female housing 31 and the positioning ribs of the side wall 81 of the cover 80 are arranged. 83, 84 are aligned, the cover 80 is inserted into the female housing 31 side, and then the cover 80 is slid to the right in the figure as shown in FIGS. Assembled. As shown in FIG. 28, this assembled state is maintained by locking the elastic arm-like lock portion 85 of the side wall 81 of the cover 80 to the projection-like locked portion 45 of the cylindrical portion 33 of the female housing 31. The

  Further, as shown in FIGS. 29 and 30, an opening preventing rib 81 b that prevents the opening of the side wall 81 from being opened by sandwiching the rail rib 33 a of the standing wall 34 is integrated with the lower end portion 81 a of the side wall 81 of the cover 80. Due to the protruding formation, when vibration is applied to the female housing 31 of the female connector 30, the pair of side walls 81, 81 of the cover 80 can be prevented from being opened and deformed easily and reliably. Furthermore, the shake of the electric wire 48 can be suppressed.

  After the cover 80 is attached to the female housing 31 of the female connector 30, the female housing 31 of the female connector 30 is attached to the hood portion 25 of the male connector 20 when the male connector 20 and the female connector 30 are fitted. With the insertion of the cam follower 26 of the male housing 21 into the cam groove 94 of the lever 90, the operation portion 92 of the lever 90 is pressed to operate with the male connector 20 with a low insertion force by operating the lever 90. The female connector 30 is fitted to each other, and the plurality of male terminals 27 of the male connector 20 and the plurality of female terminals 47 of the female connector 30 are electrically connected.

  FIG. 31A is a bottom view of another embodiment of the cover, and FIG. 31B is a cross-sectional view taken along the line GG in FIG.

  In the cover 80 of this other aspect, the electric wire holding portion 86 ′ is formed in a V-shaped cross section. With this V-shaped electric wire holding portion 86 ′, the electric wires 48 can be easily and reliably fixed without being affected by the number of electric wires 48 with the female terminals 47 being large or small (the diameters of the harnesses W 1 and W 2). In addition, vibration of the electric wire 48 due to vibration can be suppressed.

  FIG. 32A is a cross-sectional view of another embodiment of the cover before sliding, and FIG. 32B is a cross-sectional view of the cover after sliding.

  In the cover 80 of this other aspect, a leaf spring 89 extending to the cylindrical portion 33 of the female housing 31 is integrally formed at the tip 82 a of the ceiling wall 82. When the cover 80 is assembled to the female housing 31, the leaf spring 89 comes into contact with the cylindrical body portion 33 of the female housing 31 and bends. The cover 80 is pushed back to the state before the slide by the reaction force of the spring 89 so that the halfway state can be discriminated visually.

  Thus, by providing the leaf spring 89 at the tip 82a of the ceiling wall 82 of the cover 80, when the cover 80 is assembled, it is possible to prevent the cover 80 from being assembled halfway due to the reaction force of the leaf spring 89. After assembly, the cover 80 can be prevented from rattling.

  According to the above-described embodiment, the ribs that interfere with the front holder are integrally projected on both ends of the lower surface of the housing body of the female housing, but the ribs are integrally projected only on both ends of the lower surface of the housing body. You may do it.

  Further, according to the embodiment, the middle insertion detection and double locking of the female terminal accommodated in the terminal housing chamber of the female housing are performed by the front holder, but only the middle insertion detection of the female terminal is performed by the front holder. You may do it.

  Furthermore, according to the said embodiment, although the female terminal was accommodated in the female housing and the male terminal was accommodated in the male housing, you may accommodate a male terminal in a female housing and accommodate a female terminal in a male housing.

10 Lever type connector (connector)
21 Male housing (the other housing)
26 Cam Follower 27 Male Terminal (Terminal)
31 Female housing (one housing)
32 Housing body 32b Lower surface 33a Rail rib 36 Support shaft 37 Terminal accommodating chamber 38 Lance (other locking means)
40 Rib 43 Temporary engagement recess (provisional engagement part)
44 This engagement hole (this engagement part)
47 Female terminal (terminal)
DESCRIPTION OF SYMBOLS 50 Front holder 52 Peripheral wall part 52a Guide surface 54 Detection board 55 Elastic arm for temporary locking 55a Temporary locking protrusion (temporary locking part)
57 Elastic arm for locking 57a Locking protrusion (locking part)
57b Jig insertion slot 58 Release jig 58a Tip 60 Mat seal 70 Mat seal cover 71 Terminal insertion hole 71a Pick-up taper part (edge part)
80 Cover 81 Side wall 81a Lower end portion 81b Opening prevention rib 90 Lever 94 Cam groove T Clearance between housing body and peripheral wall of front holder

Claims (6)

One housing in which a plurality of terminal accommodating chambers for accommodating a plurality of terminals are formed, and the other housing that is fitted in the one housing and electrically connects the accommodated plurality of terminals and the plurality of terminals of the one housing. And by moving from the temporary locking position on the front side of the one housing to the final locking position mounted on the one housing, the insertion of the terminal of the one housing is detected together with the other locking means. In a connector having a front holder,
The front holder is provided with a jig insertion port of a release jig for releasing the state of the main locking position, and the jig insertion port is moved in the moving direction from the temporary locking position to the main locking position. A connector characterized by being provided in an orthogonal direction. The connector according to claim 1,
A mat seal that is mounted on the rear surface side of the one housing and seals the plurality of terminal accommodating chambers; and a mat seal cover that is mounted on the rear surface side of the one housing and covers the mat seal;
A connector characterized in that an edge portion of a terminal insertion hole formed at a position corresponding to the terminal accommodating chamber of the mat seal cover is formed in a curved shape. The connector according to claim 1,
The housing main body of the one housing is formed in a rectangular shape having the plurality of terminal accommodating chambers, and the front holder is formed in a box shape having an open rear side to be fitted to the outside of the housing main body. The rib that fills the gap between the peripheral wall portion of the holder is provided at a position that cancels the inclined load generated by the interference between the other locking means outside and the detection plate outside the front holder due to the interference. Characteristic connector. The connector according to claim 1,
A lever having a cam groove supported by the one housing via a support shaft and engaging with a cam follower of the other housing, and a mat seal for sealing the plurality of terminal accommodating chambers on the rear surface side of the one housing And a mat seal cover mounted on the rear surface side of the one housing so as to cover the mat seal, and a cover mounted on the rear surface side of the one housing so as to cover the mat seal cover,
A rail rib is formed on the one housing, and a lower end portion of a side wall that forms the opening of the cover is slidably provided along the rail rib, and the rail rib is provided at a position facing the rail rib. A connector characterized in that an opening preventing rib is formed by sandwiching a lower end portion of the side wall of the cover to prevent the opening of the side wall of the cover. The connector according to claim 1,
A connector characterized in that a guide surface for guiding the tip of the release jig to the jig insertion slot is formed in front of the jig insertion slot of the front holder. The connector according to claim 1,
A temporary locking elastic arm having a temporary locking portion engaged with a temporary engagement portion formed on the housing main body on a peripheral wall portion of the front holder, and a main engagement portion formed on the housing main body Both end-supported elastic arms for book-locking having a main-engaging portion that is engaged and disengaged from the main body are formed, and the tip of the release jig is inserted into the jig insertion port, thereby A connector characterized in that the locked state between the main locking portion of the locking elastic arm and the main locking portion of the housing body can be released.

Images