KR100992309B1 - Electric connector - Google Patents

Abstract

<Problem> To provide the electrical connector which could detect the failure of assembly of a connector part at the time of rear cover attachment.

<MEANS FOR SOLVING PROBLEMS> The electrical connector of the present invention (1) has a terminal (2) is accommodated therein with an insertion portion (3 _A) to be inserted into the counterpart connector 40 to the front, the coupling portion (3 _B) in the rear and having a connector housing (3), the sealing member 35, into which is fixed to the engaging portion at the front has a fitting hole (6 _C), and the rear holder 6 has parts cover attached to the back, slide the cover portion A rear cover 20 to be mounted is provided, and latching portions 11 and 11 are formed at positions adjacent to the cover attachment portion, and engaging portions to which the latching portions 11 and 11 are engaged with the holder mounting portion of the connector housing 3. (5) is formed, and the latching parts (11, 11) are slide-mounted on the rear cover (20) when the rear holder (6) is not engaged with the engaging portion (5) when the rear holder (6) is attached to the connector housing (3). To prevent.

Description

Electrical connector {ELECTRIC CONNECTOR}

The present invention relates to an electrical connector, and more particularly to an electrical connector that facilitates engagement with a mating connector by operation of an operating lever.

It has a pair of 1st and 2nd connectors couple | bonded with each other, and attaches an operation lever to either connector housing, and couples this operation lever to the other connector housing, and rotates it, Electrical connectors that allow for smooth engagement can be found in many patent documents. The representative thing is disclosed by following patent document 1, for example.

18 is an exploded perspective view of the electrical connector of the prior art, and FIG. 19 is a cross-sectional view of the electrical connector assembly of FIG. 18. As shown in FIG. 18, the electrical connector 50 disclosed in Patent Document 1 includes a plurality of terminals 51, a connector housing 52 in which these terminals 51 are accommodated, and a plurality of terminals 51. A rear holder 55 having a plurality of through-holes inserted therein and mounted to the rear of the connector housing 52 and a seal interposed between the connector housing 52 and the rear holder 55. The member 54, the operation lever 53 attached to the rear part of the connector housing 52, and the rear cover 56 are comprised.

These components are of the connector housing 52 has a rail (52 _A) extending in the horizontal direction is formed, and a rear cover 56, the two rails (52 _A) a guide groove (56 _A) embedding is formed . In addition, a guide groove (56 _A) is formed in the bottom wall of the rear cover 56 in FIG. 18. In addition, the guide grooves 56 _A and 56 _{A are} formed with rear holder pressing portions 56 _B and 56 _B , respectively, and the rear holder pressing portions 56 _B and 56 _{B are} provided at the rear of the rear holder 55. It consists of the flat part 57 which contacts, and the slope part 58 which slides the edge part of the back surface of the rear holder 55. As shown in FIG.

The mounting of the rear cover 56 to the connector housing 52 is mounted by sliding the rear cover 56 from the horizontal direction on the rear side of the connector housing 52. That is, the guide grooves 56 _A and 56 _A of the rear cover 56 are inserted into the upper and lower rails 52 _A and 52 _A of the connector housing 52, and the rear cover 56 is attached to the rear of the connector housing 52. Slide to mount. By this sliding movement, each rear holder pressing portions (56 _B, 56 _B) of the rear cover 56 is pressed into contact with the rear of the rear holder (55). As a result, the rear holder 55 is moved toward the fixed position of the connector housing 52 while pressing the sealing member 54 between the rear portion of the connector housing 52. With the slide movement of the rear cover 56, the slope 58 contacts the rear end of the rear holder 55, sliding the inclined surface of the slope 58 so that the rear holder 55 is the rear portion of the connector housing 52. Is moved towards. Then, when the flat portion 57 contacts the rear surface of the rear holder 55 after the slope portion 58 rides through the rear end portion, the pressurized state is maintained and the outer surface of the wire portion of the wire attachment terminal 51 that is mounted first. And the sealing member are kept in a watertight state (see Fig. 19).

[Patent Document 1] Japanese Patent Application Laid-Open No. 2005-123102

According to this electrical connector 50, by sliding the rear cover 56, the rear holder 55 is fixed to the connector housing 52 and the sealing member 54 is pressed, and the terminal 51 with an electric wire is pressed. The space between the outer surface of the wire portion and the sealing member 54 is kept tight. That is, by forming a rail (52 _A) extending horizontally in the guide grooves (56 _A) and the rear holder pressing portions (56 _B) formed, and at the same time the connector housing 52 to the rear cover 56, a connector housing by having the sliding movement for the rail grooves (56 _a) pierced into the rear cover 56 a of the rear cover 56 in (52 _a) of 52 to the rear of the connector housing 52, the rear holder (55 ) Is fixed to the connector housing 52 and the sealing member 54 is pressed in such a manner that a watertight state is formed between the outer circumferential surface of the wire attachment terminal 51 and the sealing member. However, according to this configuration, since the rails (52 _A) formed in the connector housing 52 is formed of a projection protruding from the outer surface of the connector housing 52, the mechanical strength had a limit, in particular, the rear cover ( 56), it takes a large load to the rail (52 _a) in the fitting, when such load acts on the rails there is a risk of such damage. In addition, the rear cover 56 has a complicated rear holder pressing portion comprising a flat portion 57 that contacts the rear surface of the rear holder 55 and a slope portion 58 that slides an end portion of the rear surface of the rear holder 55. the right of the rear cover 56 is troublesome because it is necessary to form the 56 _B). Moreover, such assembly is cumbersome.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem of the prior art, and an object of the present invention is to provide an electrical connector capable of detecting an assembly failure of a connector part in advance when mounting a rear cover.

Another object of the present invention is to provide an electrical connector capable of determining the mounting state of the sealing member and the coupling state of the connector housing and the rear holder when the rear cover is mounted.

In order to achieve the above object, the invention of the electrical connector as one kind of the present application is a connector housing having a terminal therein, an insertion portion inserted into the counterpart connector in the front, and a holder mounting portion in the rear;

A sealing member fitted to an outer circumference of the holder mounting portion;

A rear holder having a front end as an abutting surface that abuts against the sealing member, having a fitting hole fixed to the holder mounting portion at the front, having a cover attachment portion at the rear, and fixed to the connector housing via a sealing member;

An electrical connector provided with a rear cover mounted to the cover attachment portion by slide movement,

A latching portion is formed at a portion adjacent to the rear cover attachment portion of the rear holder, a holder portion of the connector housing is formed with an engaging portion for engaging the latching portion, and the latching portion is formed when the rear holder is mounted on the connector housing. In the case of the non-engagement with the engaging portion, it is characterized in that to prevent the slide movement of the rear cover.

Moreover, as a preferable aspect of this application, the said latching part and the engaging part are formed in the location which the said rear holder and the said holder attaching part oppose, respectively, It is characterized by the above-mentioned.

Moreover, as a preferable aspect of this application, the said latching part consists of a latching member which has elasticity formed in a part of the outer wall of the said rear holder, The said latching member has a latching bar and a block protrusion, The said engagement part has the said connector Having a latching groove formed in the wall surface of the housing, when the fixing of the connector housing and the rear holder is incomplete and the latching portion does not engage the engaging portion, the latching bar rises to the wall surface of the connector housing immediately before the latching groove. The latching member is pushed up by burning, whereby the block projection prevents the mounting by the slide movement of the rear cover to the cover attachment portion.

Moreover, as a preferable aspect of this application, a part of outer wall surface of the said rear holder is formed by the double wall which consists of an outer wall board and an inner wall board with a gap formed between, and the said latching part is formed in the said inner wall board, It is characterized by the above-mentioned. do.

Moreover, as a preferable aspect of this application, on the wall surface of the said rear holder, the operation lever which hangs a part to the other connector and engages both connectors is characterized by the attachment.

This invention has the outstanding effect shown below by having the said structure. That is, according to the present invention, the latching portion and the holder mounting portion are respectively formed at the rear of the rear holder, and the latching portion is covered by the latching portion when the latching portion is not engaged with the engaging portion when the rear holder is attached to the connector housing. Slide movement of the rear cover at the attachment portion is prevented. Therefore, when the sealing member is mounted and the coupling between the connector housing and the rear holder is incomplete, the rear cover cannot be mounted. Therefore, whether or not the sealing member, the connector housing and the rear holder are completely mounted when the rear cover is mounted. Detects incomplete connector assembly due to detection.

In addition, according to the present invention, since the latching portion and the engaging portion are formed at positions where the rear holder and the connector housing face each other, the rear holder can be fixed to the connector housing by the opposing latching portion and the engaging portion. Engagement of the rear holder into the housing becomes stable and secure.

In addition, according to the present invention, the latching portion and the engaging portion can be easily formed by processing the outer wall of the rear holder and the wall surface of the connector housing.

According to the present invention, a part of the outer wall of the rear holder is a double wall consisting of an outer wall plate and an inner wall plate, so that the rear cover is mounted in the gap between the outer wall plate and the inner wall plate by sliding movement, so that the rear cover is outside. I can attach it stably without exposing to. Moreover, it becomes possible to attach the operation lever for engaging two connectors in the clearance gap between double walls.

In addition, according to the present invention, by attaching the operation lever to the rear holder, engagement with the counterpart connector is facilitated.

BEST MODE FOR CARRYING OUT THE INVENTION [

EMBODIMENT OF THE INVENTION Hereinafter, the preferred form for implementing this invention is demonstrated, referring drawings. First, with reference to FIGS. 1-6, the whole electrical connector which concerns on embodiment of this invention, and the individual components which comprise this connector are demonstrated. 1 and 2 show all and individual parts of this electrical connector, and FIGS. 3 to 6 show individual parts. In addition, the arrow between each component of FIG.1 (b) and FIG.2 (b) has shown the assembly direction.

This electrical connector (hereinafter referred to as a connector) 1 is composed of a female connector, as shown in Figs. 1 and 2, and a plurality of female terminals 2 and a female in which these terminals 2 are accommodated. A connector connector (hereinafter referred to as a connector housing) 3, a rear holder 6 mounted on the rear portion of the connector housing 3, and an outer wall of the rear holder 6 to be engaged with a mating connector; And a rear cover 20 mounted to the rear of the rear holder 6 to cover the rear end of the terminal 2 to facilitate the operation, and the connector housing 3 has a ring shape on its outer circumferential wall. The sealing member 35 is mounted, and the terminal detecting member 38 (hereinafter referred to as TPA) 38 for detecting the mounting state of the terminal is attached to one wall surface of the connector housing 3. Hereinafter, the individual parts which comprise this connector are explained in full detail.

As shown in Figs. 1 and 2, the female terminal 2 has two kinds of female terminals having different sizes, that is, large female terminals (hereinafter referred to as large terminals) having a relatively large size (2 _A ). ) And a small size female terminal (hereinafter referred to as a small terminal) ( _2B ), each female terminal has a contact portion at the front and a lead wire fixing portion at the rear, and the lead wire is Connected. Large terminal (2 _A) is a sealing element _(C 2) of a ring shape attached to the outer periphery of the lead wire. In addition, a small terminal _(B 2) is equipped with a plurality of, for example, 20 terminals are grouped, a terminal sealing member _(D 2) of a ring shape on the outer circumference of the bundle.

As shown in FIG. 3, the connector housing 3 includes a front and rear wall 3 ₁ and 3 ₂ having a substantially rectangular front and rear and a pair of upper and lower walls 3 ₃ and 3 ₃ and an outer circumferential side facing each other. _{(34, 34)} surrounded, the absence of substantially jangbangche (長方體) having a coupling portion (3 _B) fitted to the rear holder 6 to the insertion portion (3 _a) and back to be inserted into the counterpart connector on the front This member is formed from the molded object of insulating synthetic resin.

The connector housing 3 has through-holes 4 _A and 4 _B through which two kinds of female terminals 2 _A and 2 _B are inserted through the rear wall 3 ₂ from the rear wall 3 ₂ to the front wall 3 ₁ . ) Is formed (see Fig. 3 (b)). The through hole (4 _A) of one side is inserted through the large terminal (2 _A), is through the through hole (4 _B) of the other side is inserted into the terminal bundle of the small terminal (2B). The other side connector 40 (refer to FIG. 15) which is connected to each terminal 2 _A and 2 _B through and inserted from each through hole 4 _A and 4 _B of the rear wall 3 _{2 on the} front wall 3 ₁ . The insertion hole into which the male terminal of () is inserted is formed (refer FIG. 3 (a)). In addition, the connector housing 3 on the front wall 31 surface is separated by a thin groove. By separating the front wall 3 ₁ into these thin grooves, the gap of the thin grooves is reduced at the time of insertion into the mating connector, and the engagement with the connector is smoothed.

The insertion portion (3 _A), the side walls of which one (3 ₄₎ TPA (38) to the mounting surface mount hole (5 _B) are formed. The engagement portion (3B), the latching bar (11 _B) (see FIG. 9) has a concave shape across the latching of the rear holder 6 to be described later to the side vertical walls _{(33, 33)} of the rear end groove ( 5 _A ) is formed. It is between the concave latching grooves (5 _A) of a shape and a rear wall ₍₃₂₎ and has a side wall part _(A 5 ') which is the side wall of the concave latching grooves (5 _A) exists. In addition, the side wall portion _(A 5 ') is formed by a portion of the top wall _(33). Further, the bottom wall ₍₃₃₎ also is formed in the same latching groove (5 _A) and a side wall part _(A 5 '). In addition, the connector housing 3 is formed in the insertion portion (3 _A) and the holder coupling portion (3 _B) with the rib _(O 3) for regulating movement of the sealing member 35 on the outer circumference of the boundary.

As shown in FIG. 4, the rear holder 6 has a pair of outer walls, namely upper and lower walls 6 ₃ , having front and rear walls 6 ₁ and 6 ₂ having substantially rectangular shapes at the front and the rear thereof, and having an outer circumference facing each other. 6 ₃ ) and members surrounded by left and right side walls 6 ₄ and 6 ₄ , which are formed of molded articles of insulating synthetic resin. The rear holder 6 has a fitting hole (6 _C) where the coupling portion (3 _B) of the connector housing 3 is inserted into the front wall ₍₆₁₎ of the front surface are formed. Inside the fitting hole (6 _C) is a through hole that is divided by the divider wall (6 _D), with the inserts a divider wall (6 _D) 2 types of terminals (2 _A, 2 _B) to be formed have.

The upper and lower walls 6 ₃ and 6 ₃ have a cover mounting portion RC on which the rear cover 20 and the operation lever 30 are mounted, and a housing latching portion LA engaged with the lever mounting portion LB and the connector housing 3, respectively. ) Is formed. These cover and lever mounting portions RC, LB and the housing latching portion LA are formed in the same structure up and down, respectively, and both of them are formed by molding the upper and lower walls 6 ₃ and 6 ₃ into a predetermined structure. have. The lower wall 6 ₃ also has the same structure as the upper wall 6 ₃ . Therefore, the structure of one upper wall 6 ₃ is demonstrated in order to avoid overlapping description.

The top wall ₍₆₃₎ is 4, as shown in, has a predetermined thickness, that an outer wall surface with a predetermined gap (6 _G) between the inner wall surface is formed, through the clearance (6 _G) 2 the middle wall, that is composed of an outer wall plate (6 _a) and the inner plate (6 _B). The gap _(G 6) is a flange with the (33 _B) of the operating lever 30 to be described later is inserted to the rotation space. Outer plate (6 _A) is cut towards the middle from the front to the rear, that is, the front wall ₍₆₁₎ from the rear wall ₍₆₂₎ direction is the dancheok (短尺). In other words, the outer plate (6 _A) is a dancheok than the width length of the left and right side wall surfaces _{(64, 64).} In addition, by being one of the outer plate (6 _A) to dancheok, rear wall ₍₆₂₎ it is a wall before dancheok compared to FIG. Between the outer wall of the dancheok plate (6 _A) with the rear wall ₍₆₂₎ has a cover and lever mounting (RC, LB) and the housing latching portions (LA) is formed.

The outer wall plate 6 _A is divided into three areas, namely, first to third areas 6 _A1 to 6 _A3 , by a plurality of slits 8 _O and 8 _O extending from the rear end to just before the front wall 61. It is divided and partly separated. Among the first to third areas 6 _A1 to 6 _A3 , the first and third areas 6 _A1 and 6 _A3 have the same size, and the second area 6 _A2 is the first and third areas ( 6 _A1 , 6 _A3 ) is formed larger. The large second area 6 _A2 is formed with a concave rectangular groove 9 having a predetermined width length and depth at its approximately central portion and formed toward the front wall 61 from the rear wall 62. The second area 6 _A2 is divided into smaller areas 6 _A21 and 6 _A21 at both ends of the rectangular groove 9. The rectangular groove 9, the groove bottom (9 _A) is formed in the flat. The groove bottom (9 _A) the cut (33 _{B ')} the gap (6 _G), by a to the alignment of the pivot projection flange (33 _B) of 33 by flat, will be described later on the flat surface The pivot protrusion 33 can be easily removed from the.

The first and third areas 6 _A1 and 6 _A3 are formed with their rear ends extending toward the rear wall 62 via the stepped portions 6 _O , and the extension portions support protrusions 7 having a predetermined thickness and a predetermined width length. _A , 7 _A ). The thickness of such support projections (7 _A, 7 _A) is insertable into the thickness of concave-shaped groove (22 _O) of the rear cover 20.

The inner wall plate 6 _B is divided into five areas, that is, the first area 6 _B1 to the fifth area 6 _B5 , and is partially separated. Among the first areas 6 _B1 to 5 _B6 , 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. ) Is the same size. In addition, the first, fifth area (6 _{B1, B5} 6) has formed a support projection (7 _A, 7 _A). The third area 6 _B3 has a larger area than other areas, and its end portion extends backward. The third area (6 _B3), the pivot projection receiving hole (10 _A) is 33, is mounted on the control lever 30 is formed. The receiving hole (10 _A) is formed on almost directly below the outer plate (6 _A), the rectangular groove (9) of the. Further, the receiving hole (10 _A) are communicated with the gap (6 _G). An extension portion of the end portion of the third area 6 _B3 is formed with a guide surface 10 _B made of an inclined surface. Further, the third concave groove (22 of the area (6 _B3) down side fitting hole (6 _C) the inner wall (6 _{B ')} to have formed, the thickness of the rear cover 20 on the periphery of the _O ) is inserted into the thickness.

That is, each of the support projections (7 _A, 7 _A) and the third area (6 _B3), the inner plate (6 _B) are formed with the same thickness, the concave shape of the rear cover 20 to be described later grooves (22 _O) of Is inserted. Left and right side walls _{(64, 64)} side of the rear wall 62 is formed with a rear cover 20 is inserted into mounting portion (12 _A, 12 _A) it is.

Further, the rear wall ₍₆₂₎ is in between the two mounting portions (12 _A, 12 _A), which is formed in the rail projection (6 _2A) projecting the upper and lower ends to a predetermined height. This rail protrusion 6 _2A is also formed below the rear wall 6 ₂ . Being a rail projection (6, _2A) for forming as by, for example, the rear cover 20 inserted through the mounting portion (12 _A) on one side has a guide with a rail projection (6, _2A) which is held on the rear holder 6 The rear holder 6 is not separated. This rail protrusion 6 _2A is a separation prevention protrusion because it prevents the rear cover 20 from being separated.

Second, the fourth area has a (6 _B2, 6 _B4), the connector housing 3 and engaged with latching (11, 11) is formed. These latching portions 11 and 11 are formed almost immediately below the small areas 6 _A21 and 6 _A21 of the outer wall plate 6 _A , and each has the same structure.

The latching portions 11, FIG. 9 (c) are, installed to extend and the base portion (11 _O), joined to the inner plate (6 _B), from the base portion, as shown in a latching arm having a predetermined length 11 _A and an upper protrusion protruding upward from the end, that is, a block protrusion 11 _C and a lower protrusion protruding downward, that is, a latching bar 11 _B , at the distal end of the latching arm 11A, a latching arm (11 _a) is a resilient ampyeon having elasticity is partially separated by a recess from the inner plate (6 _B). The latching bar 11 _B is engaged with the concave latching groove 5 _A of the connector housing 3. The block projections (11 _C) functions to block the latching to the mounting bar (11 _B) and a latching groove (5 _A) and engaging the rear holder 6 of the rear cover 20 when the incomplete. In addition, contact with the side wall (22 _A) of the latching bar (11 _B) and the additional rear cover 20 the top of the latching groove (5 _A) and the engaging block projections (11 _C) when this becomes full, the latching arm ( The movement of 11 _A ) is limited so that the engagement between the latching bar 11 _B and the latching groove 5 _A is firm. As a result, the connector housing 3 and the rear holder 6 are reliably engaged.

As shown in FIG. 4, the cover and lever mounting portions RC and LB and the housing latching portion LA are formed between the outer wall plate 6 _A and the inner wall plate 6 _B and the rear wall 6 ₂ . have. Among them, the cover mounting portion (RC) is mainly each of the support projections (7 _A, 7 _A) and, of these support projections (7 _A, 7 _A) a second area (6 _B2) the inner plate (6 _B), a rail of between consists of a projection (6 _2A), in addition, the lever mounting portion (LB) is mainly outside the inner plate (6 _a, 6 _B) gap (6 _G), and a receiving hole (10 _a) formed in the inner plate (6 _B) between It consists of. Further, the housing latching portions (LA) is the second and fourth areas each comprise a latching portions (11, 11), the latching portions 11 formed in (6 _B2, 6 _B4) of the inner plate (6 _B) is A base portion 11 _O coupled to the inner wall plate 6 _B , a latching arm 11 _A extending from the base portion, having a predetermined length, and protruding upward from the end portion at the leading end of the latching arm. is composed of a block projection (11 _C), and a latching bar (11 _B) projecting downward (see Fig. 9 (c)). Therefore, according to this structure, since the housing latching part LA, the cover mounting part RC, and the lever mounting part LB are gathered together in the rear holder 6, such formation is made simple and at the same time the cover mounting part RC, It becomes possible to link the lever mounting portion LB and the housing latching portion LA. That is, the connector housing 3 is usually complicated in structure because the terminal, its accessories, and the like are accommodated. When the latch housing and the like are formed in the connector housing 3, the structure becomes more complicated. do. On the other hand, since many parts are not attached to the rear holder 6, formation of the said housing latching part LA etc. can be simplified. In addition, such a linkage is facilitated by collecting the housing latching portion LA, the cover mounting portion RC, and the lever mounting portion LB on the rear holder. For example, first, the connector latching portion LA is used as the connector housing. After hooking the rear holder 6 to (3), it is possible to mount the operation lever 30 with the lever mounting part LB, and then install the rear cover 20 as the cover mounting part RC, and the connector Assembly can be carried out easily.

As shown in FIG. 5, the rear cover 20 is a member for guiding a plurality of lead wires drawn out from the rear wall 6 ₂ surface of the rear holder 6 in a predetermined direction, and has a gap 25 at a predetermined interval. A pair of side walls 21 and 21 facing each other and a ceiling wall 24 connected to these side walls 21 and 21 are formed of a molded body of insulating synthetic resin. End portions between the side walls 21 and 21 and the respective side walls 21 and 21 are joined to form a curved ceiling surface having an opening 26 at one end thereof. The inner part of the opening 26, that is, the ends of each side wall (21, 21) is substantially closed by closing walls (24 _A). Yi top wall 24 is formed with a protrusion (24 _B) it takes latching portions (32 _A) of the operating lever (30). The opening 26 is a lead-out hole which leads the lead wire to the outside.

The gap 25 of the pair of side walls 21 and 21 is an insertion hole inserted into the rear wall 6 ₂ of the rear holder 6. Since each side wall 21 and 21 has the same structure, one side wall is demonstrated concretely below.

The side wall 21 has a thick end portion, and the thick portion is formed with a concave groove 22 _O surrounded by opposing first and second side wall portions 22 _A and 22 _B. That is, this concave groove 22 _O has opposing first and second side wall portions 22 _A and 22 _B , and one first side wall portion 22 _A becomes part of the outer wall of the side wall 21. and, a second side wall portion (22 _B) and the other is part of the inner wall. The first side wall has a portion (22 _A) the outer surface has a latching projection projecting upward in the substantially central portion in the longitudinal direction (22 _C) is formed. The latching projection (22 _C) has a key achieved a roughly rectangular shape are formed with a small projection. This latching projection 22 _C prevents the rear cover 20 from being mounted from the wrong direction in relation to the operation lever 30 after the operation lever 30 is mounted to the rear holder 6. It has an insert protection function. In addition, the latching projection (22 _C) may doubles as a fixing ability to fit in a latching groove (36 _B) of the operation lever 30 is fixed to the operation lever 30 in place. The gap between the first and second side wall portions 22 _A and 22 _B , i.e., the gap of the concave groove 22 _O , is approximately equal to or slightly the thickness of the supporting protrusions 7 _A and 7 _A of the rear holder 6. It is formed in a wide width. The concave groove 22 _O serves as a guide groove when the rear cover 20 is attached to the rear holder 6 and serves as an attachment groove of the rear cover 20. Further, the second side wall portion (22 _B) has a guide rail 23 is formed.

As shown in FIG. 6, the operation lever 30 has a pair of opposing arm levers 31 and 31 and the connection part 32 which connects these arm levers 31 and 31, and the whole is insulating composition. It is formed by the molded object of resin. Each of the arm levers 31 and 31 is made of a flat plate and has the same configuration. In other words, each of the lever arms (31, 31) is the outer surface (31 _A) and with the inner wall surface (31 _B), each of the inner wall surface (31 _B), the pivot projection 33 and the cam holes 34 for supporting the lever in And a pair of first and second cam grooves 36 and 37 are formed. Pivot projection 33, the top portion of the support shaft (支軸) (33 _A) based on additional arm lever 31, the inner wall surface (31 _B) holder, the axis (33 _A) formed from the flanges (33 _B) Is integrally formed. Cam holes 34 are penetrating through the inside and outside walls (31 _A, 31 _{B). A} latching portion 32 _A is formed in the connecting portion 32. The latching portions (32 _A) is for securing the operation lever 30 by placing the projection (29 _B) of the rear cover 20 when it is engaged with the other connector 40 in a predetermined position.

The operation lever 30 is free, but a pivoting mounted to the rear holder 6, is formed with a rotation restriction portion _(A 33 _') for regulating the rotation on its axis (33 _A). The rotation restricting portion (33 _{A ')} is as shown in Figure 6c, the cancer is cut surfaces when the shaft (33 _A) formed upright from the lever 31 have been cut in the surface direction perpendicular to form upright flat surface ( 33 _A1 ) and a tear drop shape having an arc surface 33 _A2 .

Flange (33 _B) will form the disk-shaped having a cut-out portion (33 _{B ')} to the end portion, and its size is to a size inserted into the receiving hole (10 _A). By forming a cut-out portion (33 _{B '),} thus facilitating the attachment of the receiving hole (10 _A).

The pair of first and second cam grooves 36 and 37 are formed at side edge portions opposite to the direction in which the pivot protrusion 33 is inserted. These cam grooves 36 and 37 are formed by reducing the thickness of a through the step portion (31 _C), the lever arms 31. That is, the first cam groove 36 is the first stopper 36 _{1 on} which the guide surface 36 _{A on} which the latching protrusion 22 _C of the rear cover 20 slides and the latching protrusion 22 _{C come} into contact with _{each other.} ), and the latching projection (22 _C) has a take-latching groove (36 _B), this first stopper plate (36 ₁₎ and a latching groove (36 _B) is formed by a portion of the step portion (31 _C). The guide surface (36 _A) is formed in a predetermined width and a predetermined length against the length from the connection 32 to the ends of the lever arms 31. In addition, the pivot protrusion 33 is formed in the position close to the first stopper 36 ₁ .

The 2nd cam groove 37 is formed in the edge part opposite to the side in which the connection part 32 of the arm lever 31 was formed. The second cam groove 37 is formed in the inner wall surface (31B), the guide surface (37 _A) consisting of thin-walled through the step portion (31 _{C ')} from. A step portion (31 _{C '),} the guide surface (37 _A) of the second cam groove 37 formed by the Figure the latching projection (22 _C) is, but is as if moving the slide, the size of the guide surface (37 _A) is smaller than the guide surface (36 _a) of the first cam groove. Moreover, this step part 31C _' becomes a 2nd stopper.

The cam hole 34 penetrates 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 for guiding the engaging projection 42 (see FIG. 15) of the mating connector 40 to be described later, and has a stepped portion (a) around the guide hole 34 _A. 34 _B ) is formed. A step portion (34 _B) has a flange (42 _B) of the engaging projection 42 of the counterpart connector 40 takes.

As shown in FIG. 1, FIG. 2, the sealing member 35 consists of a ring member which has a hollow hole inside, and is formed with the rubber material which has elasticity. Moreover, it is preferable to make the outer peripheral surface of this ring member into an uneven | corrugated shape. By making an outer peripheral surface into the uneven | corrugated shape, waterproofing with the other connector 40 becomes favorable.

Next, the assembling process of the connector 1 is demonstrated with reference to FIGS. 7, 8 is explanatory drawing explaining attachment of the operation lever to a rear holder. 7 and 8, a part of the rear holder and the operation lever member is cut off 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.

This connector (1) includes (I) sealing member mounting step, (II) holder coupling step, (III) terminal mounting step, (IV) TPA mounting step, (V) lever mounting step, (VI) rear cover mounting step Assembled through each process.

(I) In the mounting process of a sealing member, among the connector components shown, for example in FIG. 1 and FIG. 2, the sealing member 35 is the rib 3 around the outer periphery of the engaging part 3B of the connector housing 3 first. _{It is} inserted until it comes in contact with _O ). When the sealing member 35 is inserted to the abutted position the rib _(3-O), is in close contact with the outer periphery is the rear holder 6, the sealing member 35, the inner peripheral wall the connector housing 3 of is the mounting state. Moreover, by attaching this sealing member 35, between the connector housing 3 mentioned later and the rear holder 6 is hermetically sealed. (II) holder joining process, insert the engagement portion (3 _B), then the connector housing 3, the sealing member 35 to the rear holder 6. By the insertion, below the latching bar (11 _B) of the touching portion (11) into engagement with the latching groove (5 _A) engages the fitting hole (6 _C). As a result, the rear holder 6 is caught and fixed to the connector housing 3. (III) In the terminal mounting process, the terminal bundles of the large terminal 2 _A and the small terminal 2 _B are inserted into the respective through holes 4 _A and 4 _B of the connector housing 3 from the rear of the rear holder 6. Each terminal is accommodated and fixed in the connector housing 3 in which the rear holder 6 is mounted by inserting and letting through. (IV) TPA mounting process, the TPA (38) is inserted into the mounting hole (5 _B) of the connector housing 3, the female terminal 2 in the connector housing 3 is fixed.

Then, in the (V) lever mounting process, the operation | work which attaches the operation lever 30 to the assembly assembled by said process (I)-(IV) is performed. As shown in Fig. 7 (a), the attachment operation first sets the operation lever 30 to the rear of the rear holder 6, and pivot protrusions 33 and 33 formed on the respective arm levers 31 and 31. ) Is pushed toward each receiving hole 10 _A , 10 _A. By this push, each of the arm levers 31 and 31 slides while the respective flanges 33 _B and 33 _B of the respective pivot protrusions 33 and 33 slide over the guide surfaces 10 _B and 10 _B. It extends outward, ie, in the up and down directions indicated by arrows Y ₁ and Y ₁ in FIG. _7B , and inner wall surfaces 31 _B and 31 _{B of the} respective arm levers 31 and 31 and outer wall plates of the rear holders. Gaps G _O and G _O are formed between 6 _A and 6 _A , respectively. In addition, these lever arms 31 and 31 is as shown in the ground by pushing, 8, through the respective flanges (33 _B, 33 _B), each receiving hole (10 _B, 10 _B), the gap (6 _G , 6 _G ). At the same time as the insertion, the arm levers 31 and 31 are returned to their original positions by the elastic restoring force, and the gaps G _O and G _O are eliminated, and the inner wall surfaces 31 _B , 31 _B ) comes into contact with the outer wall plates 6 _A , 6 _A. When the operating lever 30 is rotated in this state, the end portions of the flanges 33 _B and 33 _B do not enter the gaps 6 _G and 6 _G between the respective inner wall plates 6 _A and 6 _B so that they do not fall out. Thus, the operation lever 30 is freely attached to the rear holder 6 with rotation. Therefore, even when the external force acts on the contrary to when the operation lever 30 is pushed in, the flanges 33 _B and 33 _B do not come out. As a result, the operation lever 30 is mounted on the rear holder 6. Afterwards, even when a strong external force such as an impact is applied to the operation lever 30, the operation lever 30 does not come off from the rear holder 6.

When the operation lever 30 is attached to the rear holder 6, the rear cover is provided between the arm levers 31 and 31 of the operation lever 30 and the inner wall plates 6 _B and 6 _B of the rear holder 6. The gap G (refer FIG. 13 (b)) in which the 1st side wall part of 20 is pushed is formed. The gap (G) is composed of a guide surface (36 _A) and an opposing first gap (G ₁₎ to, and the inner wall surface (31 _B) and an opposing second gap (G ₂₎ of the operation lever 30, The first gap G ₁ is wider than the second gap G ₂ .

Finally, the rear cover 20 is attached to the rear holder 6. (VI) In the rear cover mounting step, first, the rear cover 20 is shown in the direction indicated by arrow A ₁ in FIG. Set to the side, the rear cover 20 is inserted from the direction of the first clearance G ₁ between the rear holder 6 and the operation lever 30. The insertion is such that the support projections (7 _A) of one of the concave grooves (22 _O, 22 _O) of the rear cover 20 is inserted, is inserted from the mounting portion (12 _A) direction of the one side. At this time, the guide rails 23 and 23 of the rear cover 20 are inserted along each rail protrusion 6 _2A , 6 _2A . As a result, the rear cover 20 inserted through the mounting portion (12 _A) on one side each of the support projections (7 _A, 7 _A), the inner plate (6 _B), and the rail projections (6 a third area (6 _{B3) It} is supported by _2A ) so that it does not depart from the rear holder 6.

Assembly of the connector 1 is complete | finished by the process of said (I)-(VI). By the way, in the said (II) holder coupling process, the rear holder 6 may not fully couple to the connector housing 3 in some cases. When such a case occurs, the connector housing 3 and the rear holder 6 are incompletely coupled, and at the same time, the mounting of the sealing member 35 is also insufficient, so that the desired waterproof effect cannot be obtained. In this state, the assembly 1 is bad. In this connector 1, such assembly failure can be detected by using the latching portions 11 and 11 of the rear holder 6.

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

First, the connector housing 3, the engaging portion (3 _B) alignment holes (6 _C) fitted in front of the sealing member placed to attach the unit 35, the coupling portion rear holder 6 to the _(3-B) to the rear side of the And slide it in. By pushing this rear holder 6, the front wall 6 ₁ surface of the rear holder 6 comes into contact with one end of the sealing member 35. As shown in FIG. At this time, the rear holder 6 to push fitting If this is insufficient, latching (11) the latching bar (11 _B), the latching arm (11 _A) elastic in the latching groove (5 _A), the side wall portions (5 _A for by the the _It is possible to lift the block protrusion 11 _C upward by climbing on the top of the _' ) (see Fig. 11 (c)). When the rear cover 20 is to be attached to the rear holder 6 in this state, as shown in FIG. 12 (c), even when the rear holder 6 is to be moved, the first side wall portion of the rear cover 20 22 _A collides with the block protrusion 11 _C , and this slide movement cannot be performed. As a result, the rear cover 20 cannot be mounted so that the sealing member 35 is not properly pressed against the connector housing 3, and the connector housing 3 and the rear holder 6 are in an uncoupled state. You can detect that there is.

On the other hand, Fig. 9, is sufficient to push fitting of the rear holder 6 as shown in FIG. 10, below the latching bar (11 _B) of the touching portion (11) that engages the engagement in the latching groove (5 _A) of the concave shape a block projection (11 _C) that has already been embedded, so pulled downwards, it is eliminated that the sliding movement of the rear cover 20 is prevented. When the rear cover 20 is mounted on the rear holder 6, the sealing member 35 is mounted at a regular position so that waterproofing between the connector housing 3 and the rear holder 6 is ensured and at the same time the connector housing 3 ) And the rear holder 6 are completely compensated for. In this state, the top of the block projection 11 _C is in contact with the first side wall portion 22 _A of the rear cover 20 and its movement is limited, so that the engagement between the connector housing 3 and the rear holder 6 is also firm. Done.

In addition, the rear cover 20, there is a case where as shown in Fig. 5, because it is of a pair of side walls 21 and 21 have the same structure of the facing, Figure mounting 14 (a) the arrow A from the _second direction of . If the insertion from this direction becomes possible, the operation lever 30 cannot be operated. In this connector 1, the rear cover 20 cannot be mounted from the arrow A ₂ direction. That is, when the rear cover 20 is inserted into the rear holder 6 from the arrow direction A ₂ of FIG. 14A, the first side wall portion 22 _A of the rear cover 20 is the second gap G ₂ . Plunge into me. However, the second gap (G ₂₎ of the insertion hole, the operation because the second cam groove 37 of the lever 30 is present, but the opening is larger, the first, the first cam length of the second cam groove 37 Since the rear cover 20 is further pushed in because it is narrower than the groove 36, the latching protrusion 22 _{C on the} surface of the side wall 22 _A collides with the step portion 31 _{C ′} , which is the second stopper, so that the rear This prevents the cover 20 from being pushed in. As a result, the rear cover 20 cannot be mounted from the arrow A ₂ direction.

The connector 1 assembled in this way is coupled with the counterpart connector 40. The male connector as the counterpart connector will be described below. Fig. 15 shows a male connector, Fig. 15 (a) is a perspective view of the entire male connector, and Fig. 15 (b) is an exploded perspective view of Fig. 15 (a).

The counterpart connector 40 consists of a male connector, and is comprised from several male terminal 43 and the male connector housing 41 which accommodates such a terminal, as shown in FIG.

The male terminal 43 is a male large relatively large terminal 43 _A and a small small, which are connected to the female large large terminal 2 _A and the small terminal 2 _B of the connector 1, respectively. It comprises a jack (43 _B). In addition, the male connector housing 42 has a front and rear wall 41 ₁ and 41 ₂ having a substantially rectangular front and rear and a pair of outer walls that face the outer circumference, that is, the upper and lower walls 4 1 ₃ and 41 ₃ and the left and right side walls ( 41 ₄ , 41 ₄ , and the front wall 41 ₁ is formed with a cavity having an insertion hole into which the connector 1 is inserted, and the inner wall of the cavity is close to the rear wall 4 _{1 2} . Is formed from a molded article of insulating synthetic resin.

The rear wall 4 _{1 2} of the male connector housing 41 is provided with mounting holes 41 _A and 41 _{B in} which the male terminal 43 is mounted. Upper and lower walls 4 1 ₃ and 4 _{1 3} of the connector housing are provided with engaging projections 42 and 42 which protrude outwards at a location close to the insertion opening. These engaging projections 42 and 42 are composed of a support shaft 42 _{A which} is formed from the wall surface and a flange 42 _B formed at the top of the support shaft 42 _A , which is integral with the male connector housing 41. It is formed. The flange 42 _B has a substantially disk shape. This engagement protrusion 42 is sized to engage the cam hole 34 of the operation lever 30 of the connector 1. The counterpart connector 40 is assembled by inserting and fixing the large terminal 43 _A and the small terminal 43 _B to the mounting holes 41 _A and 41 _B of the male connector housing 41, respectively. Is done.

Next, the coupling between the connector 1 and the counterpart connector 40 will be described. 16 and 17 are explanatory views illustrating coupling of both connectors, and Fig. 16 shows a state before coupling and FIG. 17 shows a state after coupling. 16 (b), 16 (c), 17 (b) and 17 (c), the counterpart connector 40 is omitted.

Coupling of the connector 1 and the mating connector 40 causes the connector 1 to approach the mating connector 40, and the insertion part 3 _A of the connector housing 3 located in front of the connector 1 is connected to the mating connector. It carried out by inserting the connector housing 41 of the front mounting holes (41 _a) of 40 (see Fig. 16 (a)). Before the two connectors 1 and 40 are engaged, as shown in FIGS. 16A to 16C, each of the cam holes 34 and 34 of the operation lever 30 is formed by the other connector 40. It does not mesh with each engagement protrusion 42 and 42, but is hold | maintained in the position parallel to the rear holder 6. As shown in FIG. As shown in FIG. 16 (d), the position of the outer circumferential surface of the latching protrusion 22 _C of the rear cover 20 is defined by the first stopper 36 ₁ and the rotation restricting portion 33 in the first cam groove 36. It is held in contact with the circular arc surface 33 _A2 of _{A '} ). By this holding | maintenance, the operation lever 30 will not rock in the arrow B direction (refer FIG. 16 (a) and FIG. 16 (c)).

Next, as shown in FIG. 17, after each engagement protrusion 42, 42 of the counterpart connector 40 is inserted in the opening part of each cam hole 34, 34 of the operation lever 30, the operation lever 30 is carried out. ), The operation lever 30 is rotated to the rear of the rear cover 20 by hand. By the rotation of the operation lever 30, the engaging projections 42 and 42 of the counterpart connector 40 are guided to the guide portions of the cam holes 34 and 34 so that both connectors 1 and 40 are close to each other. Is pulled in the direction of In addition, when the operation lever 30 is rotated, the connecting portion 32 is moved to the rear of the rear cover 20 to complete the coupling of both connectors 1 and 40, and the terminals 2, 2 of the both connectors 1 and 40 are completed. 43) electrical connection is made. By the completion of the engagement of these connectors 1 and 40, the operation lever 30 is fixed at the position where the connecting portion 32 has moved to the rear of the rear cover 20. Into squeeze into the latching projection (22 _C), the latching groove (36 _B) for fixing the rear cover 20, as shown in Fig. 17 (d) also the operating lever 30 in this position, in the squeeze into state The flat surface 33 _A1 of the rotation restricting member 33 _{A '} abuts on one surface of the outer circumference of the latching protrusion 22 _C , so that rotation of the pivot protrusion 33, that is, rotation of the operating lever 30 is restricted and fixed. do. By this holding and fixing, the operation lever 30 does not rock in the arrow C direction. In addition, the latching (32 _A) formed in the connecting portion (32) hanging on a projection (24 _B) of the top wall 24 of the rear cover 20 is a reliably than the engagement of the operating lever (30).

In addition, when both connectors 1 and 40 are engaged, the outer circumferential surface of the sealing member 35 is brought into fluid contact with the inner wall of the mounting hole 41 _A of the mating connector, thereby bringing both connectors 1 into contact. , 40) waterproof is also sure.

1: shows the electrical connector which concerns on embodiment of this invention, FIG. 1 (a) is an overall perspective view of this connector, FIG. 1 (b) is an exploded perspective view of the connector of FIG.

FIG. 2 shows the electrical connector of FIG. 1 rotated 180 degrees, FIG. 2 (a) is an overall perspective view, and FIG. 2 (b) is an exploded perspective view of FIG. 2 (a).

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. .

FIG. 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 the state in the middle of the attachment of the operation lever to a rear holder, FIG. 7 (a) is a perspective view which cut | disconnects a main part, and FIG. 7 (b) is a side view of FIG.

FIG. 8: shows after mounting of the operation lever to a rear holder, FIG. 8 (a) is a perspective view which cut | disconnects a main part, and FIG. 8 (b) is a side view of FIG. 8 (a).

FIG. 9 shows a process of coupling the connector housing and the rear holder, FIG. 9 (a) is a perspective view before coupling, FIG. 9 (b) is a perspective view after coupling, and FIG. 9 (c) is a IXC portion of FIG. 9 (b). Some sections are enlarged.

Fig. 10 shows the mounting process of the rear cover to the assembly in which the rear holder is coupled to the connector housing shown in Fig. 9, Fig. 10 (a) is a perspective view before mounting, Fig. 10 (b) is a perspective view after mounting, and Fig. 10 (c) Is an enlarged partial sectional view of the XC part of FIG.

Fig. 11 shows the process of joining the connector housing and the rear holder, Fig. 11 (a) is a perspective view before coupling, Fig. 11 (b) is a perspective view after coupling, and Fig. 11 (c) shows the XIC portion of Fig. 11 (b). It is an enlarged view.

Fig. 12 shows the mounting process of 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 mounting, Fig. 12B is a perspective view during mounting, and Fig. 12C is shown. ) Is an enlarged view of the XIIC portion of FIG. 12 (b).

FIG. 13 shows the mounting of the rear cover to the rear holder, FIG. 13 (a) is a plan view, and FIGS. 13 (b) to 13 (d) illustrate the rear cover mounting step by step, and FIG. 13 (a) Sectional drawing of the XIIIB-XIIIB line.

Fig. 14 shows the mounting of the rear cover to the rear holder, Fig. 14 (a) shows a top view, Fig. 14 (b) and Fig. 14 (c) illustrate the rear cover mounting step by step, and Fig. 14 (a) XIVB is a cross-sectional view of the XIVB line.

Fig. 15 shows a male connector, Fig. 15 (a) is a perspective view of the entire connector, and Fig. 15 (b) is an exploded perspective view of Fig. 15 (a).

Fig. 16 shows a state before coupling of both connectors, Fig. 16 (a) is a perspective view of the whole, Fig. 16 (b) is a rear view seen from the X direction of Fig. 16 (a), and Fig. 16 (c) is Fig. 16 ( (b) is sectional drawing of the housing side cut | disconnected by the XVIC-XVIC line of FIG. 16, and FIG. 16 (d) is sectional drawing of the operation lever side cut | disconnected by the XVIC-XVIC line of FIG.

Fig. 17 shows the state after coupling of both connectors, Fig. 17 (a) is a perspective view of the whole, Fig. 17 (b) is a rear view seen from the X direction of Fig. 17 (a), and Fig. 17 (c) is Fig. 17 ( Sectional drawing of the housing side cut | disconnected by the line XVIIC-XVIIC of b), FIG. 17 (d) is sectional drawing of the operation lever side cut | disconnected by the line XVIIC-XVIIC of FIG. 17 (b).

18 is an exploded perspective view of an electrical connector of the prior art.

19 is a cross-sectional view of the electrical connector assembly of FIG. 18.

<Code description>

1 (electric) connector

2 terminals

3 connector housing

3 _A insert

3 _B engagement

6 rear holder

6 _A exterior wall board

6 _B inner wall board

7 _A support protrusion

9 rectangular groove

10 _A receiving hole

11 Latching Section

11 _A latching arm

11 _B latching bar

11 _C block turning

20 rear cover

22 _C hanging projection

30 Operation lever

31 arm lever

33 pivoting

33 _A pivot

33 _{A '} Meeting Regulator

33 _B flange

35 sealing member

36 1st cam home

36 _B latching groove

37 2nd cam groove

40 partner connector

41 male connector housing

42 interlocking projection

Claims (5)

A connector housing accommodating therein, having an insertion portion inserted into the counterpart connector at the front, and having a holder mounting portion at the rear; A sealing member fitted to an outer circumference of the holder mounting portion, A rear holder which comprises a front end with an abutting surface which abuts against the sealing member, has a fitting hole fixed to the holder mounting portion at the front, a cover attachment portion at the rear, and is fixed to the connector housing via a sealing member; An electrical connector provided with a rear cover mounted to the cover attachment portion by slide movement, A latching portion is formed at a portion adjacent the rear cover attachment portion of the rear holder, and a latching portion is formed at a holder mounting portion of the connector housing, and the latching portion mounts the rear holder to the connector housing. And the slide cover of the rear cover is prevented from being engaged with the engaging portion. The method according to claim 1, The said latching part and the engaging part are each formed in the location where the said rear holder and the said holder mounting part oppose each other, The electrical connector characterized by the above-mentioned. The method according to claim 1 or 2, The latching portion is formed of a latching member having elasticity formed on a portion of an outer wall of the rear holder, the latching member has a latching bar and a block protrusion, and the engaging portion is a latching formed on the wall surface of the connector housing. Having a groove, when the fixing of the connector housing and the rear holder is incomplete and the latching portion is not engaged with the engaging portion, the latching bar is lifted by climbing to the wall surface of the connector housing immediately before the latching groove; The member is pushed up, whereby the block projection prevents the mounting by the slide movement of the rear cover to the cover attachment portion. The method according to claim 3, And a part of an outer wall surface of the rear holder is formed of a double wall made of an outer wall plate and an inner wall plate having a gap therebetween, and the latching portion is formed on the inner wall plate. The method according to claim 1 or 2, And an operation lever mounted on a wall surface of the rear holder to engage a part of the connector to engage both connectors.

Images