JP2008226827A - Electrical connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric connector in which housing latching portions, cover installation portions and lever mounting portions are gathered together on a single member, so that such latching portions, etc., are formed easily, and their assembly is also made simple. <P>SOLUTION: An electric connector has: a connector housing 3 inside which pins are housed and which has at the front a portion for coupling with a counterpart connector and at the rear a holder mounting portion; a sealing member 35 that is fitted to the outer periphery of the holder mounting portion; a rear holder 6 which has at the front a portion for clamping the sealing member 35 and which is fixed to the holder mounting portion; a rear cover 20 which covers the rear of the rear holder 6; and a manipulation lever 30 that is latched by the counterpart connector. The pair of opposed outer walls of the rear holder 6 are formed as double walls constituted of an inner plate and an outer plate with a gap therebetween, and in such double walls there are formed housing latch portions with which the connector housing 3 engages, cover installation portions to which the rear cover 20 is attached, and lever mounting portions to which the manipulation lever 30 is attached. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electrical connector, and more particularly to an electrical connector that can be easily coupled to a mating connector by operating an operation lever.

  A pair of first and second connectors coupled to each other is provided. An operation lever is attached to one of the connector housings, and the operation lever is locked to the other connector housing to rotate. An electrical connector that can smoothly connect the second connector is introduced in many patent documents. The typical connector is disclosed by the following patent documents 1 and 2, for example.

  FIG. 18 is a perspective view of a conventional electrical connector. As shown in FIG. 18, the electrical connector disclosed in the following Patent Document 1 has a pair of male and female connectors coupled to each other. One female connector 40 is attached to the connector housing 41 and the housing 41. And a locking lever 44.

  The connector housing 41 includes an outer housing 41A on the front side and an inner housing 41B on the rear side, and the outer housing 41A is provided with receiving grooves 42 and 42 opened rearward at the rear ends of both sides thereof. These receiving grooves 42 and 42 are paired, but one reference numeral is omitted in FIG. In the following, one of the reference numerals of such a pair is omitted.

  Engaging portions 43, 43 provided in the inner housing 41B are opposed to the receiving grooves 42, 42. The respective engaging portions 43, 43 are provided with flexible engaging pieces 43A, 43A at their distal ends, and these flexible engaging pieces 43A, 43A are the receiving grooves 42 of the flanged projecting portions 45, 45, respectively. , 42 is elastically displaced by the protrusions 45C, 45C during the accommodation in the housing 42, and passes these protrusions.

  Further, the locking lever 44 is rotatable about a predetermined rotation axis P connecting both side portions, and flanged protrusions 45, 45 are provided at positions corresponding to the rotation axis P on the inner wall surfaces of both side portions. Yes. The flanged protrusions 45 and 45 include columnar support shafts 45A and 45A, flanges 45B and 45B at the tips, and protrusions 45C and 45C protruding from the flange. Further, the locking lever 44 is provided with sliding contact grooves 46 on both sides.

  To attach the locking lever 44 to the connector housing 41, first, the locking lever 44 is moved along the outer housing 41A toward the receiving groove 42, and the flanged protrusion 45 is inserted into the receiving groove 42. By this insertion, the support shaft portion 45A of the flanged protrusion 45 of the locking lever 44 is inserted into the U-shaped accommodation groove 42 at the rear end of the outer housing 41A.

  Next, when the locking lever 44 is slid along the accommodating groove 42, the protrusion 45C is caused by this sliding to form a tongue-like flexible engagement of the engaging portion 43 provided integrally with the inner housing 41B. The flexible engagement piece 43 </ b> A is raised by being brought into sliding contact with the combined piece 43 </ b> A. That is, the flexible engagement piece 43A is pushed outward. Further, when the locking lever 44 is pushed to a position where the support shaft portion 45A reaches the deepest portion of the receiving groove 42, the projection 45C rising from the flange 45B passes against the elasticity of the flexible engagement piece 43A, As a result, the flexible engagement piece 43A that has been pushed outward returns to the original position, and the rear end of the protrusion 45C of the flanged protrusion 45 with the distal end of the flexible engagement piece 43A advanced to the back, The locking lever 44 is fixed by abutting and locking to the protrusion 45C.

  Moreover, the electrical connector disclosed in Patent Document 2 below has a plurality of terminals, a connector housing in which these terminals are accommodated, and a plurality of through holes through which the plurality of terminals are inserted. A rear holder attached to the rear portion, a seal member interposed between the connector housing and the rear holder, and an operation lever and a rear cover attached to the rear portion of the connector housing. In this electrical connector, when the rear cover is slid, the rear holder is fixed to the connector housing, and at the same time, the seal member is clamped to keep the outer surface of the wire portion of the terminal with wires and the seal member watertight. It is like that.

US Pat. No. 5,647,752 JP-A-2005-123102

  According to the electrical connector disclosed in Patent Document 1, both members can be easily engaged and locked by pushing the locking lever into the connector housing. That is, when the flanged protrusion 45 is inserted into the U-shaped receiving groove 42, the protrusion 45C pushes the flexible engagement piece 43A outward, and when the locking lever 44 is further pressed, the protrusion 45C is allowed. As a result, the flexible engagement piece 43A that has been pushed outward is returned to its original position and protruded at the tip of the flexible engagement piece 43A. The part 45C is locked. Therefore, after being locked, the locking lever does not come off even if an external force in the direction opposite to the pushing direction of the locking lever is applied.

  However, the protrusion of the flanged protrusion is only locked at the tip of the flexible engagement piece, and the flexible engagement piece is not locked after the locking. Therefore, when a strong external force such as some impact force is applied to the locking lever, the flexible engagement piece may be elastically deformed and the locking between the tip and the projection may be released. When this locking is released, a connection failure with the counterpart connector is caused, and the operation of the electrical equipment connected to these connectors is stopped. In addition, if this connector is waterproof, a waterproof failure will occur with the mating connector.

  Further, the electrical connector disclosed in Patent Document 2 has a complicated housing structure because a connector housing that accommodates a plurality of terminals is provided with a mounting / joining portion for a rear holder, an operating lever, and a rear cover. It has become.

  The present invention has been made to solve such problems of the prior art, and an object of the present invention is to combine the housing locking portion, the cover mounting portion, and the lever mounting portion into a single member. It is an object of the present invention to provide an electrical connector that can be easily formed as well as a stop portion and the like.

  Another object of the present invention is to provide an electrical connector that is firmly coupled to the mating connector so that the operating lever does not come off even when a strong external force such as an impact is applied.

  It is another object of the present invention to provide an electrical connector in which an operating lever fixing means is simplified so that the lever can be fixed by a pivot shaft of the operating lever.

  It is still another object of the present invention to provide an electrical connector that facilitates assembly by preventing the rear cover from being attached from the wrong direction.

In order to achieve the above object, an electrical connector of the present invention includes a connector housing having a terminal accommodated therein, an insertion portion inserted into a mating connector in the front, and a holder mounting portion in the rear,
A seal member inserted into the outer periphery of the holder mounting portion;
The front end portion is a contact surface that contacts the seal member, has a fitting hole fixed to the holder mounting portion in the front, a cover mounting portion in the rear, and a seal member interposed in the connector housing. A rear holder fixed by
A rear cover mounted by sliding movement on the cover mounting portion;
An operating lever locked to the mating connector;
In an electrical connector with
A pair of opposed outer walls of the rear holder is formed by a double wall comprising an outer wall plate and an inner wall plate provided with a gap, and a housing locking portion that is engaged with the connector housing on the double wall; A cover attaching portion to which the rear cover is attached and a lever attaching portion to which the operation lever is attached are formed.

  Further, in the present invention, the housing locking portion is formed by an elastic locking arm provided on the inner wall plate and a locking claw provided at an end of the locking arm, and the connector housing The rear holder is locked to the connector housing by providing a locking groove on the wall surface and engaging the locking claw with the locking groove.

  Further, in the present invention, the cover attaching portion is formed by a pair of support protrusions provided on the inner wall plate and a separation preventing protrusion provided on the rear wall behind the rear cover, and further, a concave groove is provided in the rear cover. The rear cover is fixed by the support protrusion and the separation preventing protrusion.

  Further, in the present invention, the lever mounting portion is formed by a pivot protrusion provided on the opposing wall surface of the pair of arm levers of the operation lever, and an accommodation hole communicating with the gap between the double walls of the rear holder, The pivot projection is inserted into the gap through the accommodation hole, and the pivot projection is rotatably supported in the accommodation hole.

  Furthermore, in the present invention, the pivot support protrusion has a support shaft erected from the arm lever, and a flange provided on the top of the support shaft, and when the flange is inserted into the receiving hole, It is inserted into the gap, and the opposing surface of the operation lever is in contact with the upper wall plate of the double wall.

  Further, in the present invention, a first cam groove that guides to the pivot projection is provided on the opposing wall surface of the arm lever, a rotation restricting portion is provided on the pivot shaft of the pivot projection, and a side wall surface of the rear cover is provided. The operation lever is arranged such that the engagement protrusion of the rear cover is located between the cam groove of the operation lever and the rotation restricting portion when the operation lever is coupled with the mating connector. The rotation is limited.

  Furthermore, in the present invention, a locking groove is provided in the first cam groove of the operation lever adjacent to the rotation restricting portion, and the locking protrusion is located in the locking groove when coupled with the counterpart connector. The rotation restricting portion comes into contact with the engagement protrusion fitted into the engagement groove, and the rotation of the pivot protrusion is limited.

  Furthermore, in the present invention, the rotation restricting portion is formed by a flat surface and an arc surface provided on the outer surface of the support shaft, and the flat surface is in contact with the locking protrusion. .

  Furthermore, the present invention is characterized in that a second cam groove for preventing the mounting of the rear cover is provided on opposing wall surfaces of the pair of arm levers.

  By providing the above configuration, the present invention has the following excellent effects. That is, according to one aspect of the present invention, the housing holder, the cover mounting portion, and the lever mounting portion are collectively provided on the rear holder, thereby simplifying the formation of the housing stopper and the like. It becomes possible to link the parts. That is, since the connector housing normally accommodates terminals and accessories thereof, the structure thereof is complicated, and if such a connector housing is provided with a housing locking portion or the like, the structure is further complicated. Become. On the other hand, since many parts are not attached to the rear holder as in the connector housing, it is possible to easily form the locking portion and the like. In addition, by providing the rear holder with the housing locking portion, the cover mounting portion, and the lever mounting portion, these linkages are facilitated. For example, after the connector housing is first locked to the rear holder by the housing locking portion, The operation of attaching the operation lever to the lever mounting portion and then attaching the rear cover to the cover mounting portion can be continuously performed, and the assembly of the electrical connector can be easily performed continuously.

  According to a preferred aspect of the present invention, the housing locking portion is formed by an elastic locking arm provided on the inner wall plate and a locking claw provided at the end of the locking arm, and the connector housing has a wall surface thereof. The rear holder can be easily and firmly locked to the connector housing by providing the locking groove on the housing and engaging the locking claw of the housing locking portion with the locking groove of the housing.

  According to a preferred aspect of the present invention, the cover mounting portion is formed by a pair of support protrusions provided on the inner wall plate and a separation preventing protrusion provided on the rear wall behind the rear cover, and the rear cover is provided with a concave groove, The rear cover can be easily and firmly attached to the rear holder by fixing the bracket with the supporting protrusion and the separation preventing protrusion.

  According to a preferred aspect of the present invention, the lever mounting portion is formed by a pivotal protrusion provided on the opposing wall surface of the pair of arm levers of the operation lever and a receiving hole communicating with the gap between the double walls of the rear holder. The operation lever can be easily and firmly attached to the rear holder.

  According to a preferred aspect of the present invention, the pivot protrusion is formed by a spindle erected from the arm lever and a flange provided on the top of the spindle, and when the pivot protrusion is inserted into the receiving hole, the flange is formed. Is inserted into the gap, and the opposing surface of the operating lever is in contact with the upper wall plate of the double wall, so that the upper wall plate is in contact with the opposing surface of the operating lever even if a large external force is applied to the operating lever. Therefore, it is not deformed and the separation of the pivot protrusion can be prevented.

  According to a preferred aspect of the present invention, a locking groove is provided in the first cam groove of the operation lever adjacent to the rotation restricting portion, and the locking protrusion is fitted into the locking groove when coupled with the mating connector. Since the rotation protrusion is brought into contact with the locking protrusion and the rotation of the pivot protrusion is restricted, the operation lever is firmly fixed and the connection with the mating connector is ensured. Further, since the rotation of the operation lever is restricted when coupled with the mating connector, the sealing member attached to the connector housing does not loosen, and a good waterproof effect is exhibited.

  According to a preferred aspect of the present invention, since the second cam groove for preventing the mounting of the rear cover is provided on the opposing wall surfaces of the pair of arm levers, the rear cover cannot be attached from the wrong direction, and the assembly is simplified. .

  The best mode for carrying out the present invention will be described below with reference to the drawings. First, with reference to FIGS. 1-6, the whole electrical connector which concerns on embodiment of this invention and each component which comprises this connector are demonstrated. 1 and 2 show the entire electrical connector and individual parts, and FIGS. 3 to 6 show individual parts. Moreover, the arrow between each component of FIG. 1B and FIG. 2B has shown the assembly direction.

  As shown in FIGS. 1 and 2, the electrical connector (hereinafter referred to as a connector) 1 includes a female connector, and includes a plurality of female terminals 2 and a female connector housing (a female connector housing in which these terminals 2 are accommodated). (Hereinafter referred to as a connector housing) 3, a rear holder 6 attached to the rear portion of the connector housing 3, an operation lever 30 attached to the outer wall of the rear holder 6 to facilitate coupling with a mating connector, and the rear holder 6 And a rear cover 20 that is attached to the rear portion and covers the rear end portion of the terminal 2. The connector housing 3 is provided with a ring-shaped sealing member 35 on the outer peripheral wall surface thereof. The terminal detection member (hereinafter referred to as TPA) 38 for detecting the mounting state of the terminal is mounted. Hereinafter, individual components constituting this connector will be described in detail.

Terminal 2 of the female type, as shown in FIGS. 1 and 2, two different types of female terminal sized, i.e. relatively large in size large female terminal (hereinafter, referred to as large-size terminal) and 2 _A, the small the size of the small female terminals made (hereinafter, small as terminal) 2 _B, each female terminal having a lead wire fixing portion to the contact portion and the rearward other party, lead wires are connected to the fixed portion ing. Large-size terminal 2 _A, the ring-shaped sealing member 2 _C is mounted on the outer periphery of the lead wire. Further, small-size terminal 2 _B is a plurality of, for example, 20 pieces of terminals are bundled, a ring-shaped sealing member 2 _D is mounted on the outer periphery of the pin bundle.

As shown in FIG. 3, the connector housing 3 is surrounded by front and rear walls 3 ₁ , 3 ₂ whose front and rear sides are substantially rectangular, and a pair of upper and lower walls 3 ₃ , 3 ₃ and left and right side walls 3 ₄ , 3 ₄ which are opposed to each other. are made members of substantially rectangular body having a coupling portion 3 _B to be fitted to the insertion portion 3 _a and rear that plugged into mating connectors on the front to the rear holder 6, the member as a molding of insulating synthetic resin Is formed.
The connector housing 3 includes, from the rear wall 3 _dihedral to the front wall 3 ₁ side, two female terminal 2 _A, 2 through holes _B are inserted 4 _A, 4 _B are formed in the interior (See FIG. 3B). The one through-hole 4 _A large-size terminal 2 _A is inserted, the other through-hole 4 _B is inserted terminal bundle of small-size terminal 2 _B. The front wall _{3 1} side, the male terminal of the counterpart connector 40 to be connected to the rear wall _{3 2} of the through holes ₄ A, ₄ the terminals ₂ A that is inserted from _{B, 2 B} (see FIG. 15) is inserted Insertion holes are formed (see FIG. 3A). The connector housing 3 of the front wall 3 ₁ side are separated by a narrow groove. By the front wall 3 ₁ are separated in this thin groove, the coupling between the connector becomes smooth been reduced gap of the thin groove upon insertion of the mating connector.

The insertion portion _{3 A,} mounting hole _{5 B} which TPA38 the one side wall _{3 four} surfaces is mounted is formed. Further, the coupling portion _{3 B,} the concave latching groove _{5 A} locking claw 11 _B of the rear holder 6 to be described later in the vertical walls ₃ 3, _{3 3} surface of the rear end (see FIG. 9, etc.) is engaged Is formed. Between this concave locking groove 5 _A and the rear wall 3 _2, there is the side wall portion 5 _{A 'of} the side wall of the concave latching groove 5 _A. Incidentally, the side wall portion 5 _{A 'is} formed in a portion of the top wall 3 _3. Incidentally, also formed the same latching groove 5 _A and sidewall portion 5 _{A 'in} lower wall 3 _3. Furthermore, the connector housing 3, the ribs 3 ₀ for restricting the movement of the insertion portion 3 _A and the seal member 35 on the outer periphery of the boundary between the holder coupling portion 3 _B is formed.

As shown in FIG. 4, the rear holder 6 includes a pair of outer walls having front and rear front and rear walls 6 ₁ , 6 ₂ opposite to each other, that is, upper and lower walls 6 ₃ , 6 ₃ and left and right side walls. It consists of a member surrounded by 6 ₄ , 6 ₄ , and this member is formed of a molded body of insulating synthetic resin. The rear holder 6, the fitting hole 6 _C is formed in which the coupling portion 3 _B of the connector housing 3 in front of the front wall 6 ₁ side is inserted. Inside the fitting hole 6 _C are partitioned by the partition walls 6 _D, through holes 2 types of terminal 2 _A, 2 _B are inserted through the partition wall 6 _D is formed.

The upper and lower walls 6 ₃ and 6 ₃ are respectively provided with a cover mounting portion RC and a lever mounting portion LB to which the rear cover 20 and the operation lever 30 are mounted, and a housing locking portion LA to be engaged with the connector housing 3. These cover and lever mounting portions RC and LB and the housing locking portion LA are formed in the same structure in the upper and lower directions, and both are formed by molding the upper and lower walls 6 ₃ and 6 ₃ into a predetermined structure. . Incidentally, it has the same structure as the top wall 6 ₃ also lower wall 6 _3. Therefore, in order to avoid a redundant description, the structure of the upper wall 6 ₃ of the one described.

Top wall 6 _3, as shown in FIG. 4 has a predetermined thickness, a predetermined gap 6 _G is formed between the outer wall surface and the inner wall surface, double through the gap 6 _G wall, i.e. is composed of an outer wall plate 6 _a and the inner wall plate 6 _B. The gap 6 _G has a distance capable of pivoting plugged flange 33 _B of the operation lever 30 to be described later. Exterior panel 6 _A is made from the front rearward, i.e. a short is cut halfway towards the rear wall 6 ₂ direction from the front wall 6 _1. That is, the external wall plate 6 _A is adapted to short than the width length of the left and right side walls 6 _4, 6 ₄ sides. Further, the fact that the outer wall plate 6 _A in short, has become short in comparison with the rear wall 6 ₂ also front wall. Between the short wall panels 6 _A and the rear wall 6 _2, cover and lever mounting portions RC, LB and the housing latching portion LA are formed.

Exterior panel _{6 A} is respectively partitioned front wall ₆ a plurality of slits ₈ 0 extending until shortly before _{1, 8 0} by three areas, namely the first to third areas ₆ A1 _{to 6 A3} from the rear end one Are separated. Among the first to third areas 6 _{A1 to} 6 _A3 , the first and third areas 6 _A1 and 6 _A3 are formed to have the same size, and the second area 6 _A2 is the first and third areas 6 _A1 and 6 _A3. It is formed larger. The large second area 6 _A2, its substantially central portion having a predetermined width dimension and depth, are notched groove 9 of the concave provided towards the rear wall 6 ₂ to the front wall 6 ₁ formed Yes. The second area _{6 A2} is both ends of the notched groove 9 is further divided into small areas _{6 A21, 6 A21.} The notched groove 9, the groove bottom 9 _A is formed flat. By flattening the groove bottom 9 _A, by aligning the cutting portion 33 B _'of the flange 33 _B of the pivot projection 33 to be described later in this flat surface, remove the pivot projection 33 easily from the gap 6 _G be able to.

First, third area 6 _A1, 6 _A3 has its rear is extended toward the rear wall 6 ₂ via the stepped portion 6 _0, the extending portion is in a predetermined thickness and a predetermined width dimension support projections 7 _A , 7 _A. The thickness of these support projections 7 _A, 7 _A has a insertable thick concave groove 22 ₀ of the rear cover 20.

The inner wall plate _6B is divided into five areas, that is, a first area _6B1 to a fifth area _6B5 and is partially separated. Among these first area 6 _B1 to fifth area 6 _B5 , the first and fifth areas 6 _B1 and 6 _B5 on both sides have the same size, and the second and fourth areas 6 _B2 and 6 _B4 have the same size. It has become. The first and fifth areas 6 _B1 and 6 _B5 form support protrusions 7 _A and 7 _A. The third area 6 _B3 has a larger area than the other areas, and its end extends rearward. This third area 6 _B3, receiving hole 10 _A of pivot projection 33 of the operating lever 30 is mounted is formed. The receiving hole 10 _A is formed in a substantially directly below the groove 9 cutouts of the outer wall plate 6 _A. Also, the receiving hole 10 _A is communicated with the gap _{6 G.} Guide surface 10 _B of an inclined surface is formed on the extended portion of the third area 6 _B3 ends. Furthermore, the lower third area 6 _B3 forms a fitting hole 6 _C inner wall 6 _B of the surrounding _', the wall thickness becomes thick to be inserted into the concave groove 22 ₀ of the rear cover 20 Yes.
That is, the inner wall plate _{6 B} of the support projections ₇ A, _{7 A,} and the third area _{6 B3} is formed in the same thickness, is inserted into the recessed groove 22 ₀ described later rear cover 20. The left and right side walls ₆ 4, _{6 4} sides of the rear wall _{6 2,} mounting portion rear cover 20 is plugged ₁₂ A, 12 _A are formed.

Also, the rear wall 6 _2, in time for both the mounting portions 12 _A, 12 _A, rail projections 6 _2A, which is projected the upper and lower end portions by a predetermined height is formed. The rail projections 6 _2A is formed in the lower rear wall 6 _2. By providing the rail projections 6 _2A, for example, the rear cover 20 is inserted from one of the mounting portion 12 _A is not separated from the rear holder 6 is held in the rear holder 6 by being guided by the rail projections 6 _2A. The rail projection _62A serves as a separation prevention projection because it prevents the rear cover 20 from being detached.

Locking portions 11 and 11 that are engaged with the connector housing 3 are formed in the second and fourth areas 6 _B2 and 6 _B4 . These locking portions 11 and 11 are formed substantially directly below the small areas 6 _A21 and 6 _A21 of the outer wall plate 6 _A , and have the same structure.

The locking portion 11, as shown in FIG. 9C, the base portion 11 ₀ that is coupled to the inner plate 6 _B, a latching arm 11 _A having been a predetermined length extending from the base portion, the locking projections on projecting upward from an end portion in the distal end of the arm 11 _a, i.e. under projection which projects into the projecting block 11 _C and lower, that have a locking claw 11 _B, latching arm 11 _a is an inner wall in part by kerf from the plate 6 _B is a resilient arm piece having elasticity is separated. The locking claw 11 </ _b > _B is engaged with the concave locking groove 5 </ _b > _A of the connector housing 3. The projecting block 11 _C will when the engagement of the engaging claw 11 _B and the engaging groove 5 _A incomplete serves to block the mounting of the rear holder 6 of the rear cover 20. Further, when the engagement of the engaging claw 11 _B and latching groove _{5 A} was made to completely, the top of the projecting block 11 _C is in contact with the side wall 22 _A of the rear cover 20, movement of the locking arm 11 _A There is limited engagement of the locking claw 11 _B and the engaging groove 5 _a becomes firmly. As a result, the connector housing 3 and the rear holder 6 are reliably coupled.

Cover and lever mounting portions RC, LB and the housing latching portion LA, as shown in FIG. 4, is formed between the outer wall plate 6 _A and inner plate 6 _B and the rear wall 6 _2. Among them, cover mounting portion RC is mainly constituted by a respective support projections ₇ A, _{7 A,} and an inner wall plate _{6 B} of the second area _{6 B2} between these support projections ₇ A, _{7 A,} a rail projection _{6 2A} is also the lever mounting portion LB is composed principally the gap _{6 G} between the outer inner wall plate ₆ a, _{6 B,} the receiving hole 10 _a provided on the inner plate _{6 B.} Further, the housing latching portion LA, the second inner plate _{6 B,} and a fourth area _{6 B2,} the locking portions 11, 11 provided on the _{6 B4,} the engaging portion 11, inner plate _{6 B} a base portion 11 ₀ that is coupled to a latching arm 11 _a having a predetermined length is extended from the base portion, the projecting block 11 projecting from the end upward in the distal end of the locking arm _C and it is composed of a locking claw 11 _B projecting downward (see Fig. 9C). Therefore, according to this structure, since the housing locking portion LA, the cover mounting portion RC, and the lever mounting portion LB are gathered in the rear holder 6, they can be easily formed and the cover mounting portion RC, the lever mounting portion LB, and The housing locking portion LA can be linked. That is, the connector housing 3 usually has a complicated structure because terminals and accessories thereof are accommodated. When the connector housing 3 is provided with the locking portion or the like, the structure is as follows. More complicated. In contrast, since many components are not mounted on the rear holder 6, the housing locking portion LA and the like can be easily formed. Further, by integrating the housing locking portion LA, the cover mounting portion RC, and the lever mounting portion LB with the rear holder, it becomes easy to link them. For example, first, the rear holder 6 is connected to the connector housing 3 with the housing locking portion LA. After stopping, the operation lever 30 can be mounted by the lever mounting portion LB, and then the rear cover 20 can be mounted by the cover mounting portion RC, and the assembly of the connector can be easily performed continuously.

Rear cover 20, as shown in FIG. 5, a member for deriving a plurality of lead wires drawn out from the wall 6 _dihedral after the rear holder 6 in a predetermined direction, opposite with a gap 25 of a predetermined distance And a ceiling wall 24 connected to the side walls 21, 21, and is formed of a molded body of an insulating synthetic resin. The ceiling wall 24 is a curved ceiling surface in which the end portions between the side walls 21 and 21 and the end portions between the side walls 21 and 21 are joined to form an opening 26 at one end portion. The inner part of the opening 26, i.e. the ends of each side wall 21 is substantially closed by a closure wall 24 _A. The ceiling wall 24 is provided with a protrusion 24 </ _b > _{B on} which the locking portion 32 </ _b > _A of the operation lever 30 is locked. The opening 26 is a lead-out hole for leading the lead wire to the outside.

Clearance of the pair of side walls 21, 21 25 has a spigot which is inserted into the wall _{6 2} after the rear holder 6. Since the side walls 21 and 21 have the same structure, one side wall will be specifically described below.
Sidewalls 21, the end portion is formed thicker, first, second sidewall portion 22 _A, 22 recessed grooves 22 ₀ surrounded by _B is formed to be opposed to the thick portion. That is, the concave groove 22 _0, first facing has a second side wall portion ₂₂ A, 22 _B, first side wall 22 _A of the one is a part of the outer wall of the side wall 21, the other the second sidewall portion 22 _B is part of the inner wall. The outer wall surface of the first side wall 22 _A locking protrusion 22 _C that protrudes upward at a substantially central portion in the longitudinal direction is formed. The locking projection 22 _C is formed in the back lower projections was a substantially rectangular shape. The locking protrusion 22 _C, the operation lever 30 is after being mounted on the rear holder 6, a mis-insertion preventing function for preventing the rear cover 20 is mounted from the wrong direction in relation to the operating lever 30 Yes. Further, the engaging protrusion 22 _C also doubles fixing function for fixing the operation lever 30 in position fitted into the locking groove 36 _B of the operating lever 30. First, the spacing between the second side wall portion ₂₂ A, 22 _B, i.e. the concave groove 22 ₀ of the gap is approximately the same or slightly larger width and thickness of the support projections ₇ A, _{7 A} of the rear holder 6. The concave grooves 22 ₀ becomes a guide groove in mounting the rear cover 20 to the rear holder 6, and has a mounting groove of the rear cover 20. The guide rail 23 is provided in the second sidewall portion 22 _B.

As shown in FIG. 6, the operation lever 30 has a pair of arm levers 31, 31 facing each other, and a connecting portion 32 that connects these arm levers 31, 31. It is formed with. Each arm lever 31 and 31 consists of a flat plate body, respectively, and has the same configuration. That is, each arm lever 31, 31, and an inner wall 31 _B and the outer wall surface 31 _A, pivot projection 33 and the cam hole 34 and the first pair of supporting a lever on the inner wall surfaces 31 _B, the second Cam grooves 36 and 37 are formed. Pivot projection 33, the base of the support shaft 33 _A is erected from the inner wall surface 31 _B of the arm lever 31, the flange 33 on the top portion of the support shaft 33 _{A B} are integrally formed. The cam hole 34 penetrates the inner and outer wall surfaces 31 _A and 31 _B. The connecting portion 32, latching portion 32 _A is provided. The locking portions 32 _A, when coupled with the counterpart connector 40 is for fixing the operation lever 30 at a predetermined position by locking the projection 29 _B of the rear cover 20.

The operation lever 30 is rotatably mounted on the rear holder 6, but a rotation restricting portion 33 _{A ′} for restricting the rotation is provided on the support shaft 33 _A. As shown in FIG. 6C, the rotation restricting portion 33 _{A ′} has a flat surface 33 _A1 when the support shaft 33 _A erected from the arm lever 31 is cut along a plane orthogonal to the erected direction. and it has a tear particle shape (teardrop shape) having an arcuate surface _{33 A2} and.

Flange 33 _B is a disk shape having a cutting portion 33 B _'to the end, its size is in the insertable size in the accommodation hole 10 _A. By providing the cutting portion 33 _{B ′} , the attachment to the accommodation hole 10 _A is facilitated.

The pair of first and second cam grooves 36 and 37 are formed on the side edges opposite to the direction in which the pivotal protrusion 33 is inserted. These cam grooves 36, 37 are formed by reducing the thickness of the arm lever 31 via the step portion 31 _C. That is, the first cam groove 36 includes a guide surface 36 _A of the locking projection 22 _C of the rear cover 20 is slid, the first stopper 36 ₁ retaining projection 22 _C is brought into contact, the locking projections 22 _C has a locking groove 36 _B to be engaged, these first stopper 36 ₁ and the locking groove 36 _B is formed in a part of the step portion 31 _C. The guide surface 36 </ b> _A is formed with a predetermined width length and a predetermined length from the connecting portion 32 toward the end of the arm lever 31. Also, pivot projection 33 is formed at a position close to the first stopper 36 _1.

The second cam groove 37 is provided at the end opposite to the side where the connecting portion 32 of the arm lever 31 is provided. The second cam groove 37 is formed in by guide surface 37 _A thin through the stepped portion 31 C _'from the inner wall surface 31 _B. Although the step portion 31 C _'of the second cam groove 37 formed through the guide surface 37 _A also retaining projection 22 _C is in the sliding surfaces, the size of the guide surface 37 _A, the first It is formed smaller than the guide surface 36 _a of the cam groove. Further, the step portion 31 _{C ′} serves as a second stopper.

The cam hole 34 passes through the inner and outer wall surfaces 31 _B and 31 _A of the arm lever 31. The cam hole 34 has a guide hole 34 _A that guides the engaging projection 42 of the counterpart connector 40 to be described later (see FIG. 15), the stepped portion 34 _B is formed around the guide hole 34 _A. The stepped portion 34 _B, the flange 42 _B of the engagement projection 42 of the counterpart connector 40 is locked.

  As shown in FIGS. 1 and 2, the seal member 35 is formed of a ring member having a hollow hole therein, and is formed of a rubber material having elasticity. Moreover, it is preferable that the outer peripheral surface of this ring member is made uneven. By making the outer peripheral surface uneven, waterproofing with the mating connector 40 becomes good.

  Next, an assembly process of the connector 1 will be described with reference to FIGS. 7 and 8 are explanatory views for explaining the mounting of the operation lever to the rear holder. 7 and 8, a part of the rear holder and the operating lever member are cut out to facilitate understanding of the internal structure. 8 to 12 are explanatory views for explaining the coupling of the rear holder to the connector housing, and FIGS. 13 and 14 are explanatory views for explaining the attachment of the rear cover to the rear holder.

  The connector 1 includes (I) a seal member mounting process, (II) a holder coupling process, (III) a terminal mounting process, (IV) a TPA mounting process, (V) a lever mounting process, and (VI) a rear cover mounting process. It is assembled through.

The mounting step of (I) sealing member, for example, FIG. 1, and of the connector component shown in FIG. 2, first, inserted into the outer periphery of the coupling portion 3 _B of the connector housing 3 until the sealing member 35 abuts against the rib 3 ₀ Is done. When the seal member 35 is inserted to a position abutting the rib 3 _0, the inner peripheral wall surface of the seal member 35 is the rear holder 6 are in close contact with the outer periphery of the connector housing 3 is ready mounted. In addition, by mounting | wearing with this sealing member 35, between the connector housing 3 and the rear holder 6 mentioned later is sealed watertight. (II) In the holder coupling step, the coupling portion 3 _B of the connector housing 3 is inserted into the rear holder 6 following the seal member 35. This insertion, the engaging claw 11 _B of the locking portion 11 is engaged immersed to the insertion hole _{6 C} engaging groove _{5 A.} Thereby, the rear holder 6 is locked and fixed to the connector housing 3. (III) In the terminal mounting step, the rear holder 6 is mounted by inserting the terminal bundle of the large terminals 2 _A and the small terminals 2 _B from the rear of the rear holder 6 into the respective through holes 4 _A and 4 _B of the connector housing 3. Each terminal is accommodated and fixed in the connector housing 3. In (IV) TPA mounting process, TPA38 is inserted into the mounting hole _{5 B} of the connector housing 3, the female terminal 2 of the connector housing 3 is fixed.

Thereafter, in the (V) lever mounting step, the operation of attaching the operation lever 30 to the assembly assembled in the steps (I) to (IV) is performed. The installation work, first, as shown in FIG. 7A, by setting the operating lever 30 to the rear of the rear holder 6, pivot projection 33, 33 each receiving hole ₁₀ A provided in the lever arms 31, 31, 10 Pushed toward _A. By this pushing, the flanges 33 _B and 33 _B of the respective pivot projections 33 and 33 slide on the guide surfaces 10 _B and 10 _B , and at the same time, the arm levers 31 and 31 are moved outward, that is, the arrows in FIG. 7B. Y _1, is spread in the vertical direction shown in _{Y 1,} respectively gaps _G 0, _{G 0} between the outer wall plate ₆ a, _{6 a} of the inner wall ₃₁ B, 31 _B and the rear holder of each arm lever 31, 31 Is formed. Further, when these arm levers 31 and 31 are pushed in, as shown in FIG. 8, the flanges 33 _B and 33 _B are inserted into the gaps 6 _G and 6 _G through the receiving holes 10 _B and 10 _B , respectively. Simultaneously with this insertion, the arm levers 31 and 31 are returned to their original positions by the elastic restoring force, and the gaps G ₀ and G ₀ are eliminated, and the inner wall surfaces 31 _B and 31 _{B of the} arm levers are the outer wall plates. 6 _A is brought into contact with 6 _A. When the operation lever 30 is rotated in this state, the end portions of the flanges 33 _B and 33 _B enter the gaps 6 _G and 6 _G between the outer inner wall plates 6 _A and 6 _B and cannot be removed. It is rotatably attached to the rear holder 6. Therefore, even if an external force reverse to that when the operating lever 30 is pushed in, the flanges 33 _B and 33 _B do not come out. As a result, after the operating lever 30 is attached to the rear holder 6, Even when a strong external force such as an impact is applied, the operation lever 30 is not detached from the rear holder 6.

When the operation lever 30 to the rear holder 6 is mounted, the gap G (Fig first side wall portion of the rear cover 20 is pushed into between the inner wall plate ₆ B, _{6 B} of lever arms 31, 31 and rear holder 6 of the operating lever 30 13B) is formed. The gap G has a first gap _{G 1} facing the guide surface 36 _A of the operating lever 30 consists of the second gap _{G 2} Metropolitan facing the inner wall surface 31 _B, the first gap _{G 1} and a second gap _{G 2} It is getting wider.

Finally, the rear cover 20 is attached to the rear holder 6. (VI) rear cover mounting process, first, the direction showing the rear cover 20 in the arrow A ₁ in FIG. 13A of the connector housing 3, i.e., is set to the side where the connecting portion 32 of the operating lever 30, the rear holder 6 and the operating lever 30 the rear cover 20 is inserted from the first gap _{G 1} direction between. This insertion, as one of the support projections _{7 A} is inserted into the recessed groove ₂₂ 0, 22 ₀ of the rear cover 20 is inserted from one of the mounting portions 12 _A direction. Guide rails 23, 23 in this case the rear cover 20 is inserted along each rail projections _{6 2A, 6} 2A. Thus, the rear cover 20 is inserted from one of the mounting portion 12 _A is detached from the rear holder 6 since each support projections ₇ A, _{7 A,} is supported by the inner wall plate _{6 B} and the rail projections _{6 2A} of the third area _{6 B3} There is no longer to do.

  The assembly of the connector 1 is completed by the steps (I) to (VI). However, the rear holder 6 may not be completely coupled to the connector housing 3 in the above (II) holder coupling step. If such a case occurs, the connector housing 3 and the rear holder 6 are incompletely coupled, and the seal member 35 is not sufficiently mounted, so that the desired waterproof effect cannot be obtained. In this state, the assembly of the connector 1 is poor. Therefore, in this connector 1, such an assembly failure can be detected by using the engaging portions 11, 11 of the rear holder 6.

  Below, this assembly failure detection is demonstrated with reference to FIG. 11, FIG. FIG. 11 and FIG. 12 are explanatory diagrams for explaining the assembly failure. These figures correspond to FIGS. 9 and 10, respectively.

First, keep wearing the seal member 35 to the rear of the coupling portion 3 _B of the connector housing 3, pushed-fitted in front of the fitting hole 6 _C of the rear holder 6 to the coupling portion 3 _B. By pushing the rear holder 6, front wall 6 ₁ side of the rear holder 6 is brought into contact with one end of the seal member 35. At this time, the pushing of the rear holder 6 is insufficient, the engaging claw 11 _B of the latching portion 11 ride on top of the side wall portion 5 _{A 'of} the locking groove 5 _A by the elasticity of the engaging arms 11 _A, projecting block 11 _C is lifted upward (see FIG. 11C). When you try to mount the rear cover 20 to the rear holder 6 in this state, as shown in FIG. 12C, even if an attempt to slide the rear holder 6, a first side wall portion 22 _A of the rear cover 20 collides to the projecting block 11 _C This slide movement becomes impossible. Therefore, when the rear cover 20 cannot be mounted, it can be detected that the seal member 35 is not properly pressed against the connector housing 3 and that the connector housing 3 and the rear holder 6 are not connected.

On the other hand, as shown in FIGS. 9 and 10, when the rear holder 6 is sufficiently pushed, and the locking claw 11 _B of the locking part 11 is immersed and engaged in the concave locking groove 5 _A , since the projecting block 11 _C is already retracted downwards, thereby preventing the sliding movement of the rear cover 20 is prevented. When the rear cover 20 is attached to the rear holder 6, the seal member 35 is attached at a proper position to ensure waterproofing between the connector housing 3 and the rear holder 6, and at the same time, the connector housing 3 and the rear holder 6 are completely coupled. Is compensated. In this state, the top of the projecting block 11 _C is in contact with the first side wall 22 _A of the rear cover 20, so that movable is limited, it becomes firmly engaged with the connector housing 3 and rear holder 6.

Further, as shown in FIG. 5, the pair of side walls 21, 21 facing each other has the same structure, and therefore the rear cover 20 may be mounted from the direction of arrow A < _b > _{2 in} FIG. 14A. If their connections from this direction will be possible, because it becomes impossible to operate the operation lever 30, so that it can not mount the rear cover 20 from the connector 1 in the arrow A ₂ direction. That is, when the rear cover 20 is plugged from the direction of the arrow _{A 2} to the rear holder 6 in FIG. 12, first side wall 22 _A of the rear cover 20 enters into the second the gap _{G 2.} However, this second gap G ₂ of sockets, but the opening is increased since the second cam groove 37 of the operation lever 30 is present, the length of the second cam groove 37 is first cam groove since narrower than 36, the rear cover 20 is further pushed, the locking projections 22 _C sidewall 22 _a surface collides with the step portion 31 C _'is a second stopper, pushing the rear cover 20 is blocked . Thus, it is no longer able to mount the rear cover 20 from the arrow A ₂ direction.

The connector 1 assembled in this way is coupled to the mating connector 40. Hereinafter, the male connector as the mating connector will be described. 15 shows a male connector, FIG. 15A is an overall perspective view of the male connector, and FIG. 15B is an exploded perspective view of FIG. 15A.
The mating connector 40 is composed of a male connector, and as shown in FIG. 15, is constituted by a plurality of male terminals 43 and a male connector housing 41 in which these terminals are accommodated.

Male terminal 43 is formed of a small size terminal 43 _B relatively sized large large-size terminal 43 _A and the size of the female, which are connected to the large-size terminal 2 _A and small-size terminal 2 _B of the female connector 1. Further, the male connector housing 42 is surrounded by front and rear walls 41 ₁ and 41 ₂ whose front and rear sides are substantially rectangular and a pair of outer walls opposite to each other, that is, upper and lower walls 41 ₃ and 41 ₃ and left and right side walls 41 ₄ and 41 ₄ . are are hollow bore having a receptacle connector 1 on the front wall 41 ₁ is plugged is formed, the back wall of the cavity hole is close to the rear wall 41 _2, the whole molding of insulating synthetic resin It is formed by the body.

This wall 41 ₂ after the male connector housing 41, mounting hole ₄₁ A of the male terminal 43 is mounted, 41 _B are formed. On the upper and lower walls 41 ₃ , 41 ₃ of the connector housing, engaging projections 42, 42 projecting outward are formed at locations close to the insertion slot. These engaging projections 42 and 42, a shaft 42 _A which is erected from the wall consists of a flange 42 _B provided on the top of the support shaft 42 _A, which are formed integrally with the male connector housing 41 Has been. Flange 42 _B is formed into a substantially disc shape. The engagement protrusion 42 is sized to be engaged with the cam hole 34 of the operation lever 30 of the connector 1. Then, the assembly of the counterpart connector 40 is performed by the to insertion fixing mounting hole ₄₁ A, the large-size terminal 43 respectively 41 _{B A} and small-size terminal 43 _B of the male connector housing 41.

Next, the connection between the connector 1 and the mating connector 40 will be described. 16 and 17 are explanatory diagrams for explaining the coupling of both connectors. FIG. 16 shows a state before coupling, and FIG. 17 shows a state after coupling. In addition, the other party connector 40 is abbreviate | omitted in FIG. 16B, FIG. 16C and FIG. 17B, FIG.
Coupling the connector 1 and the counterpart connector 40, is brought closer to the connector 1 to the mating connector 40, the connector 1 mounting hole 41 connector housing 41 front of the counterpart connector 40 to the insertion portion 3 _A of the connector housing 3 located ahead _A (See FIG. 16A). Before the connectors 1 and 40 are coupled, the cam holes 34 and 34 of the operation lever 30 are not engaged with the engagement protrusions 42 and 42 of the mating connector 40 as shown in FIGS. 16A to 16C. Are held in a position parallel to the rear holder 6. This position, as shown in FIG. 16D, contacts the arcuate surface _{33 A2} of the outer peripheral surface of the locking projection 22 _C of the rear cover 20 is first stopper 36 ₁ and the rotation restricting portion 33 _A in the first cam groove 36 _' And is held. By this holding, the operation lever 30 does not swing in the direction of arrow B (see FIGS. 16A and 16C).

Next, as shown in FIG. 17, after inserting the engagement protrusions 42, 42 of the mating connector 40 into the opening portions of the cam holes 34, 34 of the operation lever 30, the connection portion 32 of the operation lever 30 is picked by hand. The operation lever 30 is rotated to the rear of the rear cover 20. By the rotation of the operation lever 30, the engagement protrusions 42, 42 of the mating connector 40 are guided by the guide portions of the cam holes 34, 34, and the two connectors 1, 40 are pulled toward each other. When the operating lever 30 is further rotated, the connecting portion 32 moves to the rear of the rear cover 20 to complete the coupling of the connectors 1 and 40, and the electrical connection is made between the terminals 2 and 43 of the connectors 1 and 40. The When the connection between the connectors 1 and 40 is completed, the operation lever 30 is fixed at a position where the connecting portion 32 moves to the rear of the rear cover 20. Fixing of the operating lever 30 in this position, as shown in FIG. 17D, the locking projection 22 _C of the rear cover 20 enters the locking groove 36 in the _B, one side of the outer circumference of the locking protrusions 22 _C in this intruding state The flat surface 33 _A1 of the rotation restricting member 33 _{A ′} is brought into contact with the rotation of the pivot projection 33, that is, the operation lever 30 is restricted and fixed. By this holding and fixing, the operation lever 30 does not swing in the direction of arrow C. Further, the locking portion 32 </ _b > _A provided in the connecting portion 32 is locked to the protrusion 24 </ _b > _B of the ceiling wall 24 of the rear cover 20, so that the operation lever 30 is more reliably locked.
In addition, the coupling of the two connectors 1, 40 are made, by the outer peripheral surface of the seal member 35 abuts against the liquid-tight to the inner wall of the mounting hole 41 _A of the mating connector, also waterproof between the two connectors 1, 40 ensure It becomes.

1 shows an electrical connector according to an embodiment of the present invention, FIG. 1A is an overall perspective view of the connector, and FIG. 1B is an exploded perspective view of the connector of FIG. 1A. 2 shows the electrical connector of FIG. 1 rotated 180 degrees, FIG. 2A is an overall perspective view, and FIG. 2B is an exploded perspective view of FIG. 2A. 3 shows the connector housing of FIGS. 1 and 2, FIG. 3A is an enlarged perspective view of the connector housing of FIG. 1B, and FIG. 3B is an enlarged perspective view of the connector housing of FIG. 2B. 4 shows the rear holder of FIGS. 1 and 2, FIG. 4A is an enlarged perspective view of the rear holder of FIG. 1B, and FIG. 4B is an enlarged perspective view of the rear holder of FIG. 2B. 5 shows the rear cover of FIGS. 1 and 2, FIG. 5A is an enlarged perspective view of the rear cover of FIG. 1B, and FIG. 5B is an enlarged perspective view of the rear cover of FIG. 2B. 6 shows the operation lever of FIGS. 1 and 2, FIG. 6A is an enlarged perspective view of the operation lever of FIG. 1B, and FIG. 6B is an enlarged perspective view of the operation lever of FIG. 2B. FIG. 7 shows a state in the middle of mounting the operation lever to the rear holder, FIG. 7A is a perspective view showing a cut main part, and FIG. 7B is a side view of FIG. 7A. FIG. 8 shows a state after the operation lever is mounted on the rear holder, FIG. 8A is a perspective view with the main part cut, and FIG. 8B is a side view of FIG. 8A. 9A and 9B show a process of joining the connector housing and the rear holder, FIG. 9A is a perspective view before joining, FIG. 9B is a perspective view after joining, and FIG. 9C is an enlarged partial cross-sectional view of the IXC portion of FIG. 10 shows a process of attaching the rear cover to the assembly in which the rear holder is coupled to the connector housing shown in FIG. 9, FIG. 10A is a perspective view before installation, FIG. 10B is a perspective view after installation, and FIG. 10C is an XC of FIG. It is an expanded partial sectional view of a part. 11A and 11B show a process of joining the connector housing and the rear holder, FIG. 11A is a perspective view before joining, FIG. 11B is a perspective view after joining, and FIG. 11C is an enlarged view of the XIC portion of FIG. 12 shows a process of attaching the rear cover to the assembly in which the rear holder is coupled to the connector housing shown in FIG. 11, FIG. 12A is a perspective view before installation, FIG. 12B is a perspective view in the middle of installation, and FIG. 12C is a XIIC of FIG. It is an enlarged view of a part. FIG. 13 shows the mounting of the rear cover to the rear holder, FIG. 13A is a plan view, and FIGS. 13B to 13D are sectional views taken along the line XIIIB-XIIIB in FIG. 14A and 14B show the mounting of the rear cover to the rear holder, FIG. 14A is a plan view, and FIGS. 14B and 14C illustrate the state of mounting the rear cover step by step, and are sectional views taken along the line XIVB-XIVB in FIG. 15 shows a male connector, FIG. 15A is a perspective view of the whole connector, and FIG. 15B is an exploded perspective view of FIG. 15A. 16A shows a state before the connectors are joined together, FIG. 16A is a perspective view of the whole, FIG. 16B is a rear view seen from the X direction of FIG. 16A, and FIG. 16C is the housing side cut along line XVIC-XVIC of FIG. FIG. 16D is a sectional view on the side of the operation lever cut along the line XVIC-XVIC in FIG. 16B. 17 shows a state after the connectors are joined together, FIG. 17A is a perspective view of the whole, FIG. 17B is a rear view seen from the X direction of FIG. 17A, and FIG. 17C is the housing side cut along line XVIIC-XVIIC of FIG. FIG. 17D is a cross-sectional view of the operation lever side cut along the line XVIIC-XVIIC in FIG. 17B. FIG. 18 is an exploded perspective view of a conventional electrical connector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connector 2 Terminal 3 Connector housing 3 _A insertion part 3 _B coupling | bond part 6 Rear holder 6 _A Outer wall board 6 _B Inner wall board 7 _A Support protrusion 9 Notch groove 10 _A receiving hole 11 Locking part 11 _A Locking arm 11 _B locking Claw 11 _C block protrusion 20 Rear cover 22 _C locking protrusion 30 Operation lever 31 Arm lever 33 Pivoting protrusion 33 _A supporting shaft 33 _{A '} rotation restricting portion 33 _B flange 35 Seal member 36 First cam groove 36 _B locking groove 37 Second cam groove 40 Mating connector 41 Male connector housing 42 Engaging protrusion

Claims (9)

A terminal housing is housed inside, a connector housing having an insertion part inserted into the mating connector in the front, and a holder mounting part in the rear,
A seal member inserted into the outer periphery of the holder mounting portion;
The front end portion is a contact surface that contacts the seal member, has a fitting hole fixed to the holder mounting portion in the front, a cover mounting portion in the rear, and a seal member interposed in the connector housing. A rear holder fixed by
A rear cover mounted by sliding movement on the cover mounting portion;
An operating lever locked to the mating connector;
In an electrical connector with
A pair of opposed outer walls of the rear holder is formed by a double wall comprising an outer wall plate and an inner wall plate provided with a gap, and a housing locking portion that is engaged with the connector housing on the double wall; An electrical connector comprising: a cover mounting portion on which the rear cover is mounted; and a lever mounting portion on which the operation lever is mounted.   The housing locking portion is formed by an elastic locking arm provided on the inner wall plate and a locking claw provided at an end of the locking arm, and the connector housing has a locking groove on its wall surface. The electrical connector according to claim 1, wherein the rear holder is locked to the connector housing by providing the locking claw with the locking groove.   The cover attaching portion is formed by a pair of support protrusions provided on the inner wall plate and a separation preventing protrusion provided on a rear wall behind the rear cover, and further, the rear cover is provided with a concave groove, and the rear cover is The electrical connector according to claim 1, wherein the electrical connector is fixed by a support protrusion and the separation preventing protrusion.   The lever mounting portion is formed by a pivot protrusion provided on the opposing wall surface of the pair of arm levers of the operation lever and an accommodation hole communicating with a gap between the double walls of the rear holder, and the pivot projection is accommodated in the accommodation lever. The electrical connector according to claim 1, wherein the pivot protrusion is rotatably supported in the accommodation hole by being inserted into the gap through a hole.   The pivot protrusion has a support shaft erected from the arm lever, and a flange provided at the top of the support shaft, and the flange is inserted into the gap when inserted into the receiving hole, The electrical connector according to claim 4, wherein a facing surface of the operation lever is brought into contact with an upper wall plate of the double wall.   The opposing wall surface of the arm lever is provided with a first cam groove that guides to the pivot projection, a pivot restricting portion is provided on the pivot shaft of the pivot projection, and a locking projection is provided on the side wall of the rear cover. Then, the operation lever is limited in rotation of the pivot projection by the locking projection of the rear cover being positioned between the cam groove of the operation lever and the rotation restricting portion when coupled with the mating connector. The electrical connector according to claim 4.   A locking groove is provided in the first cam groove of the operation lever adjacent to the rotation restricting portion, and the locking protrusion is fitted into the locking groove when coupled with the mating connector. The electrical connector according to claim 6, wherein the rotation restricting portion comes into contact with the locking protrusion fitted in the groove to restrict the rotation of the pivot protrusion.   The said rotation control part is formed with the flat surface and circular arc surface which were provided in the outer surface of the said spindle, and the said flat surface is contact | abutted to the said latching protrusion. Electrical connector.   The electrical connector according to claim 4, wherein a second cam groove for preventing the rear cover from being mounted is provided on opposing wall surfaces of the pair of arm levers.

Images