JP2018041648A - Electric connector and electric connector assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connector capable of surely preventing a lock metal fitting from being deformed and damaged even if a pull-out force acts on a lock part of the lock metal fitting, and an electric connector assembly.SOLUTION: A lock member 30 comprises: base parts 31A and 31B including portions extending in a terminal array direction; rising parts 32A, 32B and 32C rising from a portion of the base part 31A to a front side in a connector fitting direction within a range of a housing in the terminal array direction; lock protrusions 35A-1 and 35B-1 protruding from the rising parts 32A, 32B and 32C to one end wall side in the terminal array direction; and reinforcement parts 37, 38A and 38B rising from the base part 31B to the front side in the connector fitting direction at positions adjacent to the lock protrusions 35A-1 and 35B-1 in a connector width direction and extending over a range including the lock protrusions 35A-1 and 35B-1 in the terminal array direction.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an electrical connector fitted and connected to a mating connector so as to be insertable / removable, and an electrical connector assembly including the electrical connector and the mating connector.

  In this type of electrical connector assembly, the electrical connector and the mating connector that are fitted and connected to each other may have a locking function for maintaining the connector fitted state. For example, the electrical connector assembly of Patent Document 1 includes a receptacle connector having a lock fitting, and a plug connector as a mating connector that has the lock fitting and is fitted and connected to the receptacle connector from above. .

  The receptacle connector includes a housing made of an electrically insulating material, a plurality of terminals arranged and held in the housing, a metal shield member attached to the housing, a lock fitting, and an elastic deformation member. The elastic deformation member is a member separate from the shield member provided for biasing the lock fitting to the lock position.

  The lock fitting of the receptacle connector is made of a single metal plate member, and has a band-like base portion extending in the longitudinal direction of the housing that is the terminal arrangement direction, and a plurality of standing portions that stand upward from the base portion, A lock portion protruding in the longitudinal direction from the upper portion of the upright portion, and the base portion, the upright portion, and the lock portion are integrally formed as a plate portion having one flat plate surface. The lock member is movable in the longitudinal direction between a lock position where the lock portion protrudes from the housing groove portion and a lock release position where the lock portion is housed in the housing groove portion, and is held in the housing. The elastic deformation member is biased toward the lock position. The locking member is configured to be locked to a locked portion of a locked metal fitting provided on the plug connector when the locking portion is in the locked position, so that the locked state of the connectors can be maintained.

JP2015-170500 A

  In the electrical connector assembly of Patent Document 1, when an inadvertent force toward the connector extraction direction (upward) is applied to the plug connector that is fitted and connected to the receptacle connector, The upward force (unplugged output) from the locked part of the locked metal fitting is received by the lock part. This extraction output also acts on the base portion and the standing portion that are integrated with the lock portion. By receiving the above extraction output, it is easy to be deformed to bend upward. The base part, the upright part, and the lock part are integrally formed by a single plate part having a flat plate surface, and in particular, the base part has a shape extending long in the longitudinal direction of the housing. When the output is large, the base portion may be bent upward and be damaged.

  In view of such circumstances, it is an object of the present invention to provide an electrical connector and an electrical connector assembly that can reliably prevent deformation and breakage of the lock fitting even if an output force acts on the lock portion of the lock fitting. To do.

  According to the present invention, the above-described problems are solved by the electrical connector according to the first invention and the electrical connector assembly according to the second invention.

<First invention>
An electrical connector according to a first aspect of the present invention is an electrical connector that is mateably connected to a mating connector, and the electrical connector includes a housing extending in a direction perpendicular to the connector fitting direction as a longitudinal direction; It has terminals arranged and held in the housing with the longitudinal direction as the terminal arrangement direction, a lock member and an elastically deforming part held by the housing, and the housing has a receiving part for receiving a mating connector. doing.

  In such an electrical connector, in the first invention, the lock member has a base portion having a portion extending in the terminal arrangement direction and a part of the base portion within the range of the housing in the terminal arrangement direction toward the connector fitting direction. Standing standing part, and protruding from the standing part toward the one end side of the housing in the terminal arrangement direction, can be prevented from being pulled out when locked to the locked part provided on the mating connector A lock projection and a terminal arrangement in the connector width direction perpendicular to both the connector fitting direction and the terminal arrangement direction and standing from the base to the connector fitting direction at a position adjacent to the lock projection. A reinforcing portion extending over a range including the lock protrusion in a direction, and the lock member is disposed in a housing portion of the housing, and the lock protrusion is the receiving portion It is movable between the lock position that protrudes to the locked portion of the mating connector and the unlock position where it can be unlocked by moving to the other end of the housing in the terminal arrangement direction. The deforming portion biases the lock member toward the lock position.

  Thus, in the first invention, the lock member rises from the base to the connector fitting direction forward at a position adjacent to the lock protrusion in the connector width direction and extends over a range including the lock protrusion in the terminal arrangement direction. It has a reinforcing part. Therefore, in the range where the reinforcing portion in the terminal arrangement direction is provided, the dimension of the lock member in the connector fitting direction is larger by the amount of the reinforcing portion than in the case where only the base portion exists as in the prior art. Become. As a result, since the strength against bending deformation in the connector fitting direction is improved, the lock member can counteract without bending deformation even when receiving a large pulling output from the mating connector.

  In the first invention, the lock member is made of a metal plate, and has a stacked shape in which a plurality of plate portions are stacked in the connector width direction in a state of being bent in the plate thickness direction of the metal plate. The protrusion is formed on a part of the plurality of plate parts, and the reinforcing part is formed on another plate part adjacent to the part of the plurality of plate parts. Also good. With the lock member having such a configuration, the lock member can be easily manufactured from a single metal plate member.

  In the first invention, the lock member is a solid member in which the material is continuous in any of the connector fitting direction, the terminal arrangement direction, and the connector width direction, and the lock protrusion is the connector of the lock member. It is formed in a part of the whole range in the width direction, and the reinforcing part may be formed in the remaining part of the whole range in the connector width direction of the lock member.

  If the lock member has such a configuration, the lock protrusion and the reinforcing part are directly connected and integrated in the thickness direction, so that the lock protrusion is strongly reinforced. Moreover, since the said lock metal fitting is integrally formed with the thickness dimension over the whole connector width direction except a lock protrusion and a reinforcement part, the intensity | strength of each part itself also improves. Accordingly, since a greater strength can be obtained over the entire lock fitting, it is possible to sufficiently counter an inadvertent connector pullout output.

  In the first invention, when the locking projection of the locking member is in the locked position in the connector-fitted state, the protruding tip abuts against the member having the locked portion of the mating connector, being urged by the elastic deformation portion. Also good. With such a configuration, the member having the locked portion is pressed in the terminal arrangement direction by the lock protrusion, and the movement of the plug connector in the same direction is restricted. Accordingly, it is possible to prevent the generation of noise due to the connectors reciprocating relatively in the terminal arrangement direction and the locking projection and the member having the locked portion colliding with each other. And the member having the locked portion can be prevented from being damaged.

  In the first invention, the electrical connector may include a shield member attached to the housing, and the elastic deformation portion may be formed integrally with the shield member. By forming the elastically deforming portion integrally with the shield member in this way, the number of parts can be reduced and the manufacturing cost can be reduced compared to the case where the elastically deformable member is provided as a separate member from the shield member as in the prior art. . Further, when the connector is manufactured, the elastic deformation portion is also attached at the same time by attaching the shield member to the housing, so that the step of attaching the elastic deformation member to the housing can be omitted, and the manufacture of the connector is simplified.

<Second invention>
An electrical connector assembly according to a second invention includes the electrical connector according to the first invention and a mating connector fitted and connected to the electrical connector, and the mating connector is in the connector-fitted state when the electrical connector is connected. It has the to-be-locked part which can be latched in the direction which prevents connector extraction with respect to the lock protrusion of the locking member of a connector.

  As described above, according to the present invention, by providing the reinforcement portion at a position adjacent to the lock protrusion of the lock member, the lock fitting is in the connector fitting direction within the range in which the reinforcement portion in the terminal arrangement direction is provided. The dimension of the lock member at the point is increased by an amount corresponding to the reinforcing portion as compared with the conventional case, the strength against bending deformation in the connector fitting direction is improved, and the output from the mating connector can be fully countered.

It is a perspective view of the receptacle connector which concerns on embodiment of this invention, and the plug connector fitted with respect to this from the upper direction, and has shown the state before connector fitting. FIG. 2 is a perspective view showing the receptacle connector and the plug connector of FIG. 1 turned upside down, and a perspective view showing the plug connector fitted from below. (A) is a perspective view showing the lock fitting of the receptacle connector of FIG. 1 in a posture held by the receptacle connector of FIG. 1, and (B) is before bending the lock fitting of (A). It is a top view which shows this metal plate member. FIG. 2 is a cross-sectional view of the receptacle connector of FIG. 1 in a plane perpendicular to the connector width direction, showing a cross section at the position of the lock fitting in the connector width direction. It is a figure which shows the to-be-locked metal fitting provided in the rear end side in the terminal arrangement direction of the plug connector of FIG. 1, (A) is the perspective view seen from the back side, (B) is the front side. It is the perspective view seen from. It is a perspective view which shows the lock metal fitting and shield member of a receptacle connector in the connector fitting state, and the to-be-locked metal fitting of a plug connector, (A) is the perspective view seen in the same direction as FIG. 1, (B) It is the perspective view seen in the same direction as FIG. It is sectional drawing in the surface orthogonal to the connector width direction of the receptacle connector and plug connector in a fitting state, (A) has shown the locked state, (B) has shown the unlocked state. It is a perspective view which shows the lock metal fitting which concerns on a modification.

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

  FIG. 1 is a perspective view of a receptacle connector 1 according to the present embodiment and a plug connector 2 fitted to the receptacle connector 1 from above, and shows a state before the connector is fitted. FIG. 2 is a perspective view showing the receptacle connector 1 and the plug connector 2 of FIG. 1 turned upside down, and is a perspective view showing a posture in which the plug connector 2 is fitted from below.

  The receptacle connector 1 and the plug connector 2 as a mating connector of the receptacle connector 1 according to the present embodiment are circuit board electrical connectors arranged on mounting surfaces of different circuit boards (not shown). A connector assembly having a direction perpendicular to the surface (vertical direction in FIG. 1 (Z-axis direction)) as an insertion / extraction direction is configured. For the receptacle connector 1, the connector fitting direction with respect to the plug connector 2 is the upper side (Z1 direction) in FIG. 1, and the connector extraction direction is the lower side (Z2 direction) in FIG. For the plug connector 2, the connector fitting direction with respect to the receptacle connector 1 is the lower side (Z2 direction) in FIG. 1, and the connector pulling direction is the upper side (Z1 direction) in FIG. In the present embodiment, the plug connector 2 is described as a mating connector, but from the viewpoint of the plug connector 2, the receptacle connector 1 is the mating connector.

  As shown in FIG. 1, the receptacle connector 1 includes a receptacle-side housing 10 having a substantially rectangular parallelepiped outer shape, and two rows by the receptacle-side housing 10 with the longitudinal direction of the receptacle-side housing 10 as a terminal arrangement direction (X-axis direction). A plurality of receptacle terminals 20 arranged and held on the receptacle side, a lock fitting 30 as a lock member held on the receptacle side housing 10 along the longitudinal direction, and the receptacle side so as to cover the peripheral wall of the receptacle side housing 10 And a shield member 40 attached to the housing 10. The receptacle connector 1 is disposed and mounted on a circuit board (not shown) in the posture shown in FIG.

  The receptacle-side housing 10 is made of, for example, an electrical insulating material such as resin, and extends in one direction parallel to the mounting surface of the circuit board as a longitudinal direction (terminal arrangement direction). The receptacle-side housing 10 is erected from the bottom wall 11 (see FIG. 2) parallel to the mounting surface and upward (Z1 direction) from the bottom wall 11 in FIG. It has a protruding protruding wall 12 that extends and a frame-shaped peripheral wall 13 that stands upward from the bottom wall 11 and surrounds the protruding wall 12. The peripheral wall 13 has a pair of side walls 14 extending in the terminal arrangement direction (X-axis direction) and ends of the pair of side walls 14 extending in a connector width direction (Y-axis direction) perpendicular to the terminal arrangement direction. And a pair of end walls 15 for connecting the two. An annular space that opens upward between the protruding wall 12 and the peripheral wall 13 is formed as a receiving portion 16 for receiving a peripheral wall 53 as a fitting portion of the plug connector 2.

  The receptacle-side housing 10 is configured to hold the receptacle terminal 20, the lock fitting 30, and the shield member 40. For the understanding of the configuration, the receptacle-side housing 20 is first described prior to further description of the receptacle-side housing 10. The lock fitting 30 and the shield member 40 will be described.

  As shown in FIGS. 1 and 2, the receptacle terminal 20 is formed by bending a strip-like piece obtained by punching a metal plate in the plate thickness direction. The receptacle terminal 20 includes a base portion 21 (see FIG. 2) extending in the connector width direction, a contact arm portion 22 (see FIG. 1) bent at a right angle at one end of the base portion 21 and extending upward, A held portion 23 (see FIG. 1) extending in an inverted U shape from the other end, and outward from the held portion 23 in the connector width direction (in FIG. 2, the Y2 direction for the receptacle terminals 20 in the front row, The receptacle terminals 20 in the back row have connection portions 24 (see FIG. 2) extending in the Y1 direction. The receptacle terminal 20 has a base portion 21 and a held portion 23 held by integral molding at the bottom wall 11 and the side wall 14 of the receptacle-side housing 10, respectively.

  The contact arm portion 22 is accommodated in a longitudinal groove portion 12D (described later) formed on the protruding wall 12 of the receptacle-side housing 10, and can be elastically deformed in the thickness direction of the contact arm portion 22, in other words, in the connector width direction. It has become. At the upper end of the contact arm portion 22, a contact portion 22A for contact with a plug terminal 60 as a mating terminal provided on the plug connector 2 is formed to protrude outward in the connector width direction. It is located in the part 16. In the held portion 23 having an inverted U shape (see FIG. 1), the plate surface of the inner leg portion positioned inward in the connector width direction of the two leg portions is exposed from the inner surface of the side wall 14. A lock portion 23A for engaging with the plug terminal 60 is formed on the upper portion of the surface so as to protrude. In addition, the connecting portion 24 is a receptacle-side housing from the lower end (upper end in FIG. 2) of the outer leg portion located on the outer side in the connector width direction of the two held portions 23 toward the outer side in the connector width direction. 10 extends outside and is solder-connected to a corresponding circuit portion (not shown) of the circuit board.

  Next, the configuration of the lock fitting 30 will be described with reference to FIGS. 3 (A) and 3 (B). 3A is a perspective view showing the lock fitting 30 of the receptacle connector 1 of FIG. 1 in a posture held by the receptacle connector of FIG. 1, and FIG. 3B is a perspective view of FIG. It is a top view which shows metal plate member 30 'before bending-forming the metal fitting 30. As will be described later, the lock fitting 30 moves in the terminal arrangement direction by receiving an unlocking operation that is pressed toward the right (X1 direction) in FIG. In this embodiment, the right side (X1 direction) in FIG. 3A, that is, the front in the movement direction of the lock fitting 30 when unlocking is referred to as “front”, and the left side in FIG. 3A (X2) Direction) is called “backward”.

  As shown in FIG. 3A, the lock fitting 30 is formed by bending a flat metal plate member 30 '(see FIG. 3B) in the plate thickness direction. The lock fitting 30 includes two outer plate portions 30A and two inner plate portions 30B (collectively referred to as “plate portions 30A and 30B” as necessary) stacked in the connector width direction, It has a lock release operation part 30C formed at the rear end, and a connecting part 30D for connecting the two inner plate parts 30B and the lock release operation part 30C.

  The plate portions 30A and 30B are formed by bending the metal plate member 30 ′ so as to be folded back multiple times in the plate thickness direction, and each of the plate portions 30A and 30B is provided on both outer sides of two adjacent inner plate portions 30B. The outer plate portion 30A is located. The dimensions of the plate portions 30A and 30B in the front-rear direction (terminal arrangement direction) are all the same. The lower edges of the outer plate portion 30A and the inner plate portion 30B that are adjacent to each other are connected to each other by the folded portion over the entire front-rear direction. Moreover, the upper edges of the inner plate portions 30B adjacent to each other are connected to each other at the rear end portion (an inner extension portion 36B to be described later) by a folded portion.

  The outer plate portion 30A includes an outer base portion 31A extending in a straight shape over the entire front and rear direction of the outer plate portion 30A, and three standing portions extending from the upper edge of the outer base portion 31A and extending in the front and rear direction, that is, terminals It has a front erection part 32A, an intermediate erection part 32B, and a rear erection part 32C (collectively referred to as “erection parts 32A, 32B, 32C” as necessary) that are positioned in order from the front in the arrangement direction. Further, as will be described later, the outer plate portion 30A includes a front supported portion 33A, a rear supported portion 33B, an outer front restricted portion 34A, which extend from any of the standing portions 32A, 32B, and 32C. It has an outer rear restricted portion 34B, a front lock portion 35A, a rear lock portion 35B, and an outer extension portion 36A. Hereinafter, if necessary, the front supported portion 33A and the rear supported portion 33B are collectively referred to as “supported portions 33A, 33B”, and the outer front restricted portion 34A and the outer rear restricted portion 34B are referred to as “the restricted portion 34A”. , 34B ”, and the front lock portion 35A and the rear lock portion 35B are collectively referred to as“ lock portions 35A, 35B ”.

  The three standing parts have dimensions in the front-rear direction in the order of the intermediate standing part 32B, the rear standing part 32C, and the front standing part 32A. The supported portions 33A and 33B are locked downward with respect to corresponding portions of the receptacle-side housing 10 (a front center support portion 12A-1 and a rear support portion 12C-2, which will be described later), from the receptacle-side housing 10. It is a part for preventing the lock metal fitting 30 from dropping downward (see FIG. 4), and is in two different positions in the front-rear direction in the intermediate standing part 32B (the front supported part 33A is more forward than the rear supported part 33B). It is formed in an inverted L shape that extends upward from the intermediate upright portion 32B and then bends backward. Of the inverted L-shaped portions of the supported portions 33A and 33B, the vertical portions extending in the vertical direction are the regulating surfaces 12A-1A of the front center support portion 12A-1 and the rear support portion 12C-2, as will be described later. 12C-2A (end surface perpendicular to the terminal arrangement direction) and functions as a portion for restricting the maximum amount of movement of the lock fitting 30 toward the rear (see FIG. 4).

  As will be described later, the outer front restricted portion 34A is in contact with a restriction surface 17E-1 of the receptacle-side housing 10 (an inner wall surface of a front protrusion wall groove portion 17E described later), and the maximum amount of movement of the lock fitting 30 toward the rear. This is a portion for restricting the above, and extends straight upward from the front end portion of the intermediate upright portion 32B. On the other hand, as will be described later, the outer rear restricted portion 34B is positioned in front of the tip pieces 45A-1 and 45B-1 of the elastic deformation portion 45 described later provided in the shield member 40, and the tip pieces 45A-1. , 45B-1 is a portion for restricting the maximum amount of elastic deformation in the forward direction, and extends straight upward from the intermediate position in the front-rear direction of the rear standing portion 32C.

  The front lock portion 35A extends upward and rearward from the rear end portion of the front erection portion 32A, and a portion projecting rearward from the rear edge of the front erection portion 32A is provided on the mating part provided on the plug connector 2. It is formed as a forward lock protrusion 35A-1 that can be locked with a locked metal fitting 70 as a lock metal fitting. On the other hand, the rear locking portion 35B extends upward and rearward from the rear end portion of the intermediate standing portion 32B, and a portion protruding rearward from the rear edge of the intermediate standing portion 32B is connected to the above-described locked metal fitting 70. It is formed as a rear locking projection 35B-1 that can be locked. The front lock protrusion 35A-1 and the rear lock protrusion 35B-1 have a slanted edge that slopes downward as the upper edge goes rearward, and the lower edge is a direction substantially perpendicular to the vertical direction ( It extends in the front-rear direction and is formed in a bowl shape (see also FIG. 4).

  The outer extending portion 36A extends straight upward from the rear end portion of the rear standing portion 32C, and is a space formed between the outer rear restricted portion 34B located in front of the outer extending portion 36A. Thus, the tip pieces 45A-1 and 45B-1 of the elastically deforming portion 45 of the shield member 40 are accommodated (see FIG. 4).

  The inner plate portion 30B rises from the upper edge of the inner base portion 31B (see FIG. 3B) and extends in the front-rear direction while extending in a straight shape over the entire front-rear direction of the inner plate portion 30B. Main reinforcing portion 37, inner front restricted portion 34C extending from main reinforcing portion 37, inner rear restricted portion 34D, inner extending portion 36B (see FIG. 3B), front auxiliary reinforcing portion 38A, rear auxiliary reinforcing A portion 38B is provided. Hereinafter, if necessary, the inner front restricted portion 34C and the inner rear restricted portion 34D are collectively referred to as “restricted portions 34C, 34D”, and the front auxiliary reinforcing portion 38A and the rear auxiliary reinforcing portion 38B are referred to as “sub reinforcing portions 38A. , 38B ".

  The inner base portion 31B is formed with the same height dimension (vertical direction dimension) as the outer base portion 31A of the outer plate portion 30A, and the inner base portion 31B is connected to the inner base portion 31A through the folded portion between the lower edges. The base 31B and the outer base 31A form one base. The main reinforcing portion 37 extends over the entire area in the front-rear direction of the inner plate portion 30B, and stands up with the same height as the standing portions 32A, 32B, 32C of the outer plate portion 30A. The inner front restricted portion 34C is formed at a position corresponding to the outer front restricted portion 34A of the outer plate portion 30A in the front-rear direction, and the rear end edges of both are at the same position in the front-rear direction. The inner front restricted portion 34C is connected to and integrated with a front auxiliary reinforcing portion 38A located in front of the inner front restricted portion 34C. The inner rear restricted portion 34D has the same shape as the outer rear restricted portion 34B of the outer plate portion 30A, and is formed at the same position in the front-rear direction as the outer rear restricted portion 34B.

  The inner extension portion 36B extends in a straight line from the rear end portion of the main reinforcing portion 37 upward at a position corresponding to the outer extension portion 36A of the outer plate portion 30A in the front-rear direction, and the inner extension portion The front end edge of 36B is located slightly ahead of the front end edge of the outer extension portion 36A (see FIG. 4). The inner extension part 36B is a space formed between the inner rear restricted part 34D positioned in front of the inner extension part 36B, and the distal end pieces 45A-1 of the elastic deformation part 45 of the shield member 40, 45B-1 is accommodated. Further, the front end portion of the inner extension portion 36B comes into contact with the front end pieces 45A-1 and 45B-1 of the elastic deformation portion 45 at the front end edge thereof, so that the rear end from the front end pieces 45A-1 and 45B- It functions as an abutting portion 36B-1 that receives an urging force (spring force) directed toward.

  The front auxiliary reinforcing portion 38A rises at the front end portion of the main reinforcing portion 37 and includes the front lock portion 35A of the outer plate portion 30A in the front-rear direction, specifically, the front rising portion 32A of the outer plate portion 30A. It extends in a range extending from the front end position to the intermediate position of the outer front restricted portion 34A. As described above, the front auxiliary reinforcing portion 38A is connected to the inner front restricted portion 34C to be integrated. The rear sub-reinforcing part 38B stands up at the middle part of the main reinforcing part 37 and includes the rear lock part 35B of the outer plate part 30A in the front-rear direction, specifically, the outer plate from the front end position of the rear lock part 35B. It extends in a range extending to a position between the standing portions 32B and 32C of the portion 30A.

  In the present embodiment, an inner plate portion 30B adjacent to the outer plate portion 30A having the lock portions 35A and 35B is provided, and the inner plate portion 30B includes not only the inner base portion 31B but also the main reinforcing portion 37 and the sub reinforcing portion 38A, By providing 38B, the height of the inner plate portion 30B is ensured to be large, so that the overall strength of the lock fitting 30 against bending deformation of the lock fitting 30, particularly bending deformation in the connector insertion / extraction direction is improved. Further, in the inner plate portion 30B, not only the main reinforcing portion 37 and the sub reinforcing portions 38A and 38B but also the restricted portions 34C and 34D and the inner extending portion 36B contribute to the above-described improvement in strength.

  The connecting portion 30D has a two-ply shape, and has a shape such that the inner extending portion 36B in which the upper edges are connected to each other is extended rearward as it is. The unlocking operation portion 30C is formed by being bent at the lower end of each plate portion of the connecting portion 30D and extending outward in the connector width direction and then extending rearward. The rear part of the unlocking operation unit 30C is bent downward, and the plate surface perpendicular to the front-rear direction functions as a pressing surface 30C-1 that receives a forward pressing force during the unlocking operation described later. To do.

  The lock fitting 30 having such a configuration is formed by bending the metal plate member 30 ′ shown in FIG. 3B in the plate thickness direction at the positions of the alternate long and short dash lines. First, the outer plate portion 30A and the inner plate portion 30B are formed by performing valley folding so that the metal plate member 30 'is folded at two alternate long and short dash lines A. Next, the metal plate member 30 ′ is folded back at the alternate long and short dash line B so that the plate surfaces of the inner plate portion 30 B ′ face each other and the connecting portion 30 D is formed. Further, the metal plate member 30 ′ is valley-folded at a right angle along the alternate long and short dash line C, and the metal plate member 30 ′ is folded at a right angle along the alternate long and short dash line D to form the unlocking operation portion 30C. The lock fitting 30 shown in A) is completed. The order in which the metal plate member 30 ′ is bent at the positions of the alternate long and short dash lines is not limited to the order of the alternate long and short dash lines A, B, C, and D, and may be any order.

  As shown in FIGS. 1, 2, and 6, the shield member 40 is made by punching a metal plate into a predetermined shape and then bending it in the plate thickness direction. As shown in FIG. 1, the shield member 40 includes an upper plate portion 41 that covers the upper surfaces of both end walls 15 and the end portions of the side walls 14 of the receptacle-side housing 10, and both end edges of the upper plate portion 41 in the connector width direction. The side plate portion 42 is bent at a right angle downward and extends in the terminal arrangement direction so as to cover the side wall 14 and is held by the receptacle-side housing 10, and the connector width direction at both ends of the side plate portion 42 in the terminal arrangement direction. An inner end plate portion 43 (see FIG. 2) that is bent inward and covers the end wall surfaces of both end walls 15, and a side edge of the upper plate portion 41 at positions near both ends of the upper plate portion 41 in the terminal arrangement direction. The outer end plate portion 44 is bent and extended at a right angle downward and covers the outer surface of the inner end plate portion 43, and the inner end plate portion 43 extends rearward from the inner edge in the connector width direction as will be described later. And an elastic deformation portion 45.

  The upper plate portion 41 is substantially U-shaped when viewed from above with an end portion covering the upper surface of the end wall 15 and a side portion covering the end portions of the two side walls 14. Two end attachment pieces 46 that are bent downward from the side edge (side edge extending in the connector width direction) of the end portion in the terminal arrangement direction and extending downward to the lower portion of the end wall 15 are formed. Further, an outer contact piece 47 that is bent downward and extends to a position near the upper end of the side wall 14 is formed from a side edge (side edge extending in the terminal arrangement direction) inside the connector width direction inside the side portion.

  The side plate portion 42 has a lower edge portion notched outside the terminal arrangement range in the terminal arrangement direction, and is provided with a mounting groove portion 42A for press-fitting attachment to a corresponding portion of the receptacle-side housing 10, Fixed leg portions 42B are formed on both outer sides of the mounting groove portion 42A to be fixed to corresponding circuit portions of the circuit board by soldering. From the upper edge of the side plate portion 42, at the position outside the terminal arrangement range in the terminal arrangement direction and inside the outer contact piece 47, it extends inward in the connector width direction and then downwards at the upper end of the side wall 14 An inner contact piece 48 extending to the offset position is formed.

  The two inner end plate portions 43 are arranged at intermediate positions in the same direction toward the inner side in the connector width direction, specifically, side edges (edge portions extending in the vertical direction) of end wall groove portions 17B and 17C of the end wall 15 described later. ) And the tips (inner ends) are located at intervals. The elastic deformation portion 45 is formed by two elastic pieces 45A and 45B which are folded back from the inner end of each inner end plate portion 43 outward in the connector width direction and then further back inward in the connector width direction. Has been. The elastic pieces 45A and 45B are provided at the tops of the front end portions (inner end edges) at the positions different from each other in the vertical direction, and the front end pieces 45A-1 and 45B-1 extend toward the inside in the connector width direction. have. The tip piece 45A-1 of the elastic piece 45A faces the inner end edge of the other elastic piece 45B, and the tip piece 45B-1 of the elastic piece 45B is positioned below the tip piece 45A-1 and the other elastic piece 45A-1. It extends so as to face the inner edge of the piece 45A. In addition, an accommodating portion 45C for accommodating the rear end portions of the base portions 31A and 31B of the lock fitting 30 is formed below the tip pieces 45A-1 and 45B-1.

  Returning to the description of the receptacle-side housing 10. As shown in FIG. 2, the bottom wall 11 of the receptacle-side housing 10 is a bottom hole portion that penetrates in the vertical direction adjacent to a bottom groove portion 17 </ b> A of a lock fitting housing groove portion 17 described later at a position near the center in the connector width direction. 11B and a bottom recess 11C that is sunk from the bottom surface (the upper surface in FIG. 2) of the bottom wall 11 at both edges of the bottom wall 11 in the connector width direction and is opened outward in the connector width direction. They are arranged at equal intervals in the terminal arrangement direction so as to be symmetric with respect to a center line extending in the terminal arrangement direction through the center in the direction. The bottom hole portion 11B and the bottom recess portion 11C are arranged in correspondence with the receptacle terminals 20 in the terminal arrangement direction. A part of the base 21 of the receptacle terminal 20 is accommodated in the bottom hole portion 11B, and the receptacle is accommodated in the bottom recess portion 11C. The connection part 24 of the terminal 20 is accommodated.

  As shown in FIG. 1, the protruding wall 12 penetrates in the vertical direction by sunk from both side surfaces of the protruding wall 12 at the same position as the bottom hole portion 11B and the bottom recessed portion 11C of the bottom wall 11 in the terminal arrangement direction. A longitudinal groove 12D extending in the direction is formed. The longitudinal groove portion 12D communicates with the bottom hole portion 11B and accommodates the contact arm portion 22 of the receptacle terminal 20 while allowing elastic displacement in the plate thickness direction.

  The side wall 14 is formed with a side recess 14 </ b> A that is recessed from the inner surface at the upper portion of the inner surface (wall surface forming the receiving portion 16) of the side wall 14 on both outer sides of the terminal arrangement range. The side recess 14 </ b> A accommodates the distal end portions of the outer contact piece 47 and the inner contact piece 48 of the shield member 40. Further, the side wall 14 is formed with a mounting portion 14B that is press-fitted into the mounting groove 42A of the shield member 40 on both outer sides of the terminal arrangement range so as to protrude from the lower outer surface of the side wall 14.

  The end wall 15 is inserted into the both side positions in the connector width direction of end wall groove portions 17B and 17C of the lock fitting housing groove portion 17 to be described later from the inner surface of the end wall 15 (wall surface forming the receiving portion 16) and vertically An end recess 15A extending in the direction is formed. The end recess 15 </ b> A is configured to accommodate the end mounting piece 46 of the shield member 40.

  Further, in the receptacle-side housing 10, one lock fitting receiving groove 17 for receiving the plate portions 30A and 30B of the lock fitting 30 extends at right angles to the connector width direction at the center position in the connector width direction. It is formed in a slit shape and extends over the entire area of the receptacle-side housing 10 in the terminal arrangement direction. As shown in FIG. 4, the lock fitting receiving groove portion 17 has a symmetrical shape (left-right symmetrical in FIG. 4) in the terminal arrangement direction with respect to a center line (not shown) passing through the center in the connector width direction. ing.

  4 is a cross-sectional view of the receptacle connector 1 of FIG. 1 in a plane perpendicular to the connector width direction, and shows a cross section at the position of the outer plate portion 30A in the connector width direction. In FIG. 4, the right side is the front and the left side is the rear. The lock fitting receiving groove portion 17 is formed by communicating grooves or holes for receiving the respective portions of the outer plate portion 30A and the inner plate portion 30B of the lock fitting 30.

  Hereinafter, the shape of the lock fitting receiving groove portion 17 will be described separately for the shape at the position of the outer plate portion 30A and the shape at the position of the inner plate portion 30B in the connector width direction (direction perpendicular to the paper surface). At the position of the outer plate portion 30A, as shown in FIG. 4, the lock fitting receiving groove portion 17 includes a bottom groove portion 17A (see FIG. 2) for receiving the outer base portion 31A of the lock fitting 30, a front upright portion 32A, and A front end wall groove portion 17B for accommodating the front lock portion 35A, a rear end wall groove portion 17C for accommodating the front half portion of the rear standing portion 32C, and a lower protruding wall groove portion 17D (for accommodating the intermediate standing portion 32B) 1), a front projecting wall groove portion 17E for accommodating the front regulated portion 34A, a rear projecting wall groove portion 17F for accommodating the rear lock portion 35B, and a front for accommodating the front supported portion 33A. It has a projecting wall hole 17G and a rear projecting wall hole 17H for accommodating the rear supported part 33B.

  As seen in FIG. 2, the bottom groove portion 17 </ b> A extends along the bottom wall 11 so as to penetrate the entire region in the terminal arrangement direction in the same direction. Further, the bottom groove portion 17A penetrates in the vertical direction in a range corresponding to the receiving portion 16 in the terminal arrangement direction, that is, a range between the protruding wall 12 and the end wall 15, and communicates with the receiving portion 16. Yes. As seen in FIG. 4, the front end wall groove 17B is the end wall 15 located on the front (right end side in FIG. 4) in the terminal arrangement direction, and the rear end wall groove 17C is in the terminal arrangement direction. An end wall 15 located behind (left end side in FIG. 4) extends in the vertical direction and penetrates in the wall thickness direction (terminal arrangement direction) of each end wall 15. The upper inner wall surface (surface perpendicular to the vertical direction) of the front half portion (right half portion in FIG. 4) of the front end wall groove portion 17B and the rear half portion (left half portion in FIG. 4) of the rear end wall groove portion 17C is As will be described later, the regulating surfaces 17B-1 and 17C- that abut the upper edge of the front rising portion 32A and the upper edge of the rear standing portion 32C of the lock fitting 30 and restrict the movement of the lock fitting 30 upward. Functions as 1.

  The lower projecting wall groove portion 17D (see FIG. 1) penetrates the lower portion of the projecting wall 12 in the front-rear direction, and also includes a bottom groove portion 17A, a front projecting wall groove portion 17E, a rear projecting wall groove portion 17F, a front projecting wall hole portion 17G, and a rear projecting portion. It communicates with each of the wall hole portions 17H.

  The front projecting wall groove portion 17E is formed as a groove portion that opens forward on the front end side (right end side in FIG. 4) of the projecting wall 12. The rear projecting wall groove portion 17F is formed as a groove portion that penetrates in the vertical direction and opens rearward on the rear end side (left end side in FIG. 4) of the projecting wall 12. The front protruding wall hole portion 17G is a position closer to the front than the central position of the protruding wall 12 in the terminal arrangement direction, and the rear protruding wall hole portion 17H is a position closer to the rear than the central position of the protruding wall 12. These are formed as holes penetrating in the vertical direction.

  As shown in FIG. 4, the projecting wall 12 includes a central partition wall 12A that separates the front projecting wall hole 17G and the rear projecting wall hole 17H at the center position in the terminal arrangement direction, and a front end in the same direction ( The front partition wall portion 12B that separates the front projecting wall groove portion 17E and the front projecting wall hole portion 17G at the position near the right end), and the rear projecting wall groove portion 17F and the rear projecting wall hole portion 17H at the position near the rear end (left end) in the same direction. The rear partition wall 12C that separates them from each other is formed in an island shape.

  The central partition wall portion 12A has a front center support portion 12A-1 and a rear center support portion 12A-2 that protrude forward and rearward at the lower portion, respectively, and the cross-sectional shape as a whole forms an inverted T-shape. . Further, the front partition wall portion 12B has an upper wall portion 12B-1 that extends forward at the upper portion and closes the upper end of the front protruding wall groove portion 17E, and a front support portion 12B-2 that protrudes rearward at the lower portion. The cross-sectional shape is a crank shape as a whole. The rear partition wall 12C extends upward at the upper part and closes the upper end of part of the rear protruding wall groove part 17F, and the rear support part 12C-2 protrudes forward at the lower part. As a whole, the cross-sectional shape is a crank shape in which the cross-sectional shape of the front partition wall portion 12B is reversed left and right. The lower surfaces of the upper wall portions 12B-1 and 12C-1 (surfaces perpendicular to the vertical direction), in other words, the upper inner wall surfaces of the projecting wall groove portions 17E and 17F, respectively, are described in the following. It functions as regulating surfaces 17E-2 and 17F-2 that regulate the upward movement of the lock fitting 30 by contacting the upper edge of the regulating portion 34A and the upper edge of the rear locking portion 35B at the unlocking position described later.

  The front projecting wall hole 17G has a lower portion narrowed by a front center support portion 12A-1 and a front support portion 12B-2 that protrude toward each other in the terminal arrangement direction, and has a T shape as a whole. Further, the rear projecting wall hole portion 17H is narrowed at the lower portion by the rear center support portion 12A-2 and the rear support portion 12C-2 that protrude toward each other in the terminal arrangement direction, and has a T shape as a whole. .

  As shown in FIG. 4, in this embodiment, the front center support portion 12 </ b> A- 1 is engaged with the front supported portion 33 </ b> A of the lock fitting 30, and the rear support portion 12 </ b> C- 2 is the rear supported portion of the lock fitting 30. By engaging with 33B, it functions as a support portion for preventing the lock fitting 30 from falling off from the receptacle-side housing 10 downward. In the present embodiment, the front support portion 12B-2 and the rear center support portion 12A-2 are not used as support portions.

  The front end surfaces (surfaces perpendicular to the terminal arrangement direction) of the front center support portion 12A-1 and the rear support portion 12C-2 are in contact with the vertical portions of the supported portions 33A and 33B of the lock fitting 30, It functions as regulating surfaces 12A-1A and 12C-2A that regulate the backward movement of the lock fitting 30 in the terminal arrangement direction.

  Further, the front end surface perpendicular to the terminal arrangement direction of the front support portion 12B-2, in other words, the inner wall surface perpendicular to the front-rear direction of the front projecting wall groove portion 17E is the outer front restricted portion of the lock fitting 30, respectively. Abuts with 34A and functions as a regulating surface 17E-1 that regulates the backward movement of the lock fitting 30 in the terminal arrangement direction.

  At the position of the inner plate portion 30B in the connector width direction, the lock fitting receiving groove portion 17 is seen from the groove portion at the position of the outer plate portion 30A shown in FIG. The shape is such that the protruding wall hole 17H is omitted.

  The receptacle connector 1 having the above configuration is assembled in the following manner. First, the receptacle terminal 20 is arranged and held in the receptacle-side housing 10 by integrally molding the receptacle-side housing 10 and the plurality of receptacle terminals 20 arranged in two rows. As a result, a part of the base 21 of the receptacle terminal 20 is held by the bottom wall 11, and the held portion 23 of the receptacle terminal 20 is held by the side wall 14. Further, the contact arm portion 22 is accommodated in the longitudinal groove portion 12 </ b> D of the protruding wall 12 so as to be elastically displaceable, and the connection portion 24 is exposed and positioned in the bottom concave portion 11 </ b> C of the bottom wall 11.

  Next, the shield member 40 is attached to the receptacle-side housing 10 from above. At this time, the attachment portion 14B of the side wall 14 of the receptacle-side housing 10 is press-fitted into the attachment groove portion 42A of the side plate portion 42 of the shield member 40. In addition, the outer contact piece 47 and the inner contact piece 48 are accommodated in the side recess 14 </ b> A of the side wall 14, and the end attachment piece 46 is accommodated in the end recess 15 </ b> A of the end wall 15.

  In addition, the lock fitting 30 is housed in the lock fitting housing groove 17 from below the receptacle-side housing 10 as follows. First, the lock fitting 30 is placed below the receptacle-side housing 10 such that the supported portions 33A, 33B of the lock fitting 30 are in the same positions as the protruding wall holes 17G, 17H of the receptacle-side housing 10 in the terminal arrangement direction. Position. Then, the lock fitting 30 is moved upward to cause the supported portions 33A and 33B to enter the protruding wall holes 17G and 17H, respectively. At this time, the outer base portion 31 of the outer plate portion 30A of the lock fitting 30, the front standing portion 32A, the intermediate standing portion 32B, the rear standing portion 32C, the front restricted portion 34A, the front locking portion 35A and the rear locking portion 35B are respectively a receptacle. The side housing 10 enters the bottom groove portion 17A, the front end wall groove portion 17B, the lower protruding wall groove portion 17D, the rear end wall groove portion 17C, the front protruding wall groove portion 17E, the front end wall groove portion 17B, and the rear protruding wall groove portion 17F. At the same time, the inner base portion 31B, the inner front restricted portion 34C, the main reinforcing portion 37, and the auxiliary reinforcing portions 38A and 38B of the inner plate portion 30B of the lock fitting 30 are also accommodated in the corresponding space of the lock fitting accommodation groove portion 17. Is done.

  The rear restricted portions 34 </ b> B and 34 </ b> D, the extending portions 36 </ b> A and 36 </ b> B, the unlocking operation portion 30 </ b> C, and the connecting portion 30 </ b> D are located behind the receptacle-side housing 10 and outside the receptacle-side housing 10. Further, outside the receptacle-side housing 10, the rear ends of the base portions 31A and 31B of the lock fitting 30 are accommodated in the accommodating portion 45C of the shield member 40, and the regulated portions 34B and 34D and the extension portions of the lock fitting 30 are also accommodated. The tip pieces 45A-1 and 45B-1 of the elastic pieces 45A and 45B of the shield member 40 are accommodated in the space between 36A and 36B.

  Further, in the process in which the lock fitting 30 moves upward in the lock fitting groove portion 17, the abutting portion 36B-1, which is the front end portion of the inner extension portion 36B, is connected to the tip pieces 45A-1, 45B-1. Are pressed forward to elastically deform the elastic pieces 45A and 45B forward. And if each horizontal part of to-be-supported part 33A, 33B of the lock | rock metal fitting 30 is brought up rather than the front center support part 12A-1 and the back support part 12C-2, it will be by the restoring force of elastic piece 45A, 45B. The contact part 36B-1 of the inner extension part 36B is pushed back. As a result, the horizontal portions of the supported portions 33A and 33B are brought directly above the front center support portion 12A-1 and the rear support portion 12C-2.

  Therefore, as shown in FIG. 4, each lateral portion is supported so as to be locked downward with respect to the front center support portion 12 </ b> A- 1 and the rear support portion 12 </ b> C- 2, thereby locking from the receptacle-side housing 10. The metal fitting 30 is prevented from falling off. At this time, the lock protrusions 35A-1 and 35B-1 of the lock fitting 30 protrude outside the front end wall groove part 17B and the rear protrusion wall groove part 17F of the receptacle-side housing 10, respectively, and are positioned in the receiving part 16. In this way, the lock connector 30 and the shield member 40 are attached to the receptacle-side housing 10, whereby the receptacle connector 1 is completed.

  In the receptacle connector 1 assembled as described above, the side edge (left edge) of the vertical portion of the supported portions 33A and 33B and the side edge (left edge) of the front restricted portion 34A are respectively the front center support portion 12A. -1 restricting surface 12A-1A, the restricting surface 12C-2A of the rear support portion 12C-2, the restricting surface 17E-1 of the front projecting wall groove portion 17E, and the maximum amount of movement of the lock fitting 30 toward the rear is restricted. Is done. By restricting the maximum movement amount of the lock fitting 30 as described above, the maximum value of the lock amount of the lock portions 35A and 35B with respect to the lock portions 75C and 72C of the lock fitting 70 of the plug connector 2 described later is restricted. . Therefore, the lock portions 35A and 35B are damaged when the metal fitting 70 is brought into contact with the lock portions 35A and 35B from above in the connector fitting process due to the excessive lock amount. Can be prevented.

  In the present embodiment, the lock fitting 30 receives the urging force from the elastic portion 45 of the shield member 40, and the lock portions 35A and 35B protrude from the front end wall groove portion 17B and the rear protruding wall groove portion 17F, respectively. 4 between the position shown in FIG. 4 and the “unlock position” where the lock portions 35A and 35B are accommodated in the front end wall groove portion 17B and the rear protrusion wall groove portion 17F, respectively, against the urging force. It can move in the direction of arrangement.

  In this embodiment, as shown in FIG. 4, the lock fitting receiving groove portion 17 has a symmetrical shape, so that the lock fitting 30 can be locked even when the posture shown in FIG. 4 is reversed left and right. It can be accommodated in the metal fitting receiving groove 17.

  Next, the configuration of the plug connector 2 will be described with reference to FIGS. 1, 2, and 5 to 7. The plug connector 2 includes a plug-side housing 50 having a substantially rectangular parallelepiped outer shape, and plug terminals as a plurality of mating terminals arranged and held in two rows by the plug-side housing 50 with the longitudinal direction of the plug-side housing 50 as a terminal arrangement direction. 60 and two to-be-locked metal fittings 70 held by both end portions (end wall 55 described later) of the plug-side housing 50 in the longitudinal direction. The plug connector 2 is manufactured by integral molding so that the plug-side housing 50 holds the plurality of plug terminals 60 and the metal fitting 70 to be locked. The plug connector 2 is disposed and mounted on the circuit board in the posture shown in FIG. 2, and is fitted and connected to the receptacle connector 1 in a posture reversed upside down as shown in FIG.

  The plug-side housing 50 is made of, for example, an electrical insulating material such as resin, and extends in one direction parallel to the mounting surface of the circuit board as a longitudinal direction (terminal arrangement direction). The plug-side housing 50 includes a bottom wall 51 (see FIG. 1) parallel to the mounting surface and a frame-like fitting portion that stands upward from the bottom wall 51 as seen in FIG. As a peripheral wall 53. The peripheral wall 53 includes a pair of side walls 54 extending in the terminal arrangement direction and a pair of end walls 55 extending in the connector width direction perpendicular to the terminal arrangement direction and connecting the ends of the pair of side walls 54. Have. A space that is surrounded by the peripheral wall 53 and opens upward (Z2 direction) in FIG. 2 is formed as a receiving portion 56 for receiving the protruding wall 12 of the receptacle connector 1. The end wall 55 has an end groove 55A as a recess for receiving a part of the lock fitting 30 of the receptacle connector 1 at the center position in the connector width direction, and the end wall 55 extends in the wall thickness direction (terminal arrangement direction). It penetrates and is formed to open upward (downward in FIG. 1).

  The plug-side housing 50 is configured to hold the plug terminal 60 and the metal fitting 70 to be locked. For the understanding of the form, the plug-side housing 50 and the covered member are first described prior to further description of the plug-side housing 50. The lock fitting 70 will be described.

  The plug terminal 60 is made by bending a strip obtained by punching a metal plate in the thickness direction. As shown in FIGS. 1 and 2, the plug terminals 60 are integrally molded on the side walls 54 of the plug-side housing 50 and are held at regular intervals with the longitudinal direction of the side walls 54 as the terminal arrangement direction. Are arranged. In the present embodiment, the plug terminals 60 located at both ends in the terminal arrangement direction are used as ground terminals that contact the inner contact piece 48 of the shield member 40 of the receptacle connector 1, and the other plug terminals 60 are connected to the receptacle connector terminal 20. Used as a contact terminal. The plug terminal 60 includes a straight connection portion 61 extending outward in the connector width direction at substantially the same height as the bottom wall 51 of the plug-side housing 50, and the connection portion 61 in FIG. It has a held portion 62 that is bent upward (downward in FIG. 1) and extends in an inverted U shape (U shape in FIG. 1) and is embedded and held in the side wall 54.

  The held portion 62 having an inverted U shape is formed such that a leg portion located on the inner side in the connector width direction is formed as a contact leg portion 62A for contact with the receptacle terminal 20 of the receptacle connector 1, and the leg portion located on the outer side. The portion is formed as a lock leg portion 62B for locking with the receptacle terminal 20. The contact leg portion 62A extends along the inner side surface of the side wall 54, and is exposed toward the receiving portion 56 so that the plate surface of the contact leg portion 62A is flush with the inner side surface of the side wall 54. doing. On the other hand, the lock leg 62B extends along the outer surface of the side wall 54, and is exposed so that the plate surface of the lock leg 62B forms the same surface as the outer surface of the side wall 54. On the exposed plate surface of the lock leg portion 62B, a lock step portion 62B-1 for engaging with the lock portion 23A of the receptacle terminal 20 of the receptacle connector 1 is formed.

  The metal fitting 70 to be locked is made by punching a metal plate into a predetermined shape and then bending it in the thickness direction as seen in FIGS. 5 (A) and 5 (B). FIG. 5A is a perspective view of the locked metal fitting 70 provided on the rear end side in the terminal arrangement direction as seen from the rear side, and FIG. 5B is the locked metal fitting 70 of FIG. It is the perspective view which looked at from the front side. The locked metal fitting 70 has a locking function of locking in the connector extraction direction to the lock metal fitting 30 of the receptacle connector 1 in the connector fitting state, and as will be described later, the shield member 40 of the receptacle connector 1. It also has a function as a ground terminal that contacts and electrically conducts.

  2 and FIGS. 5A and 5B, the metal fitting 70 to be locked includes a bottom plate portion 71 (see also FIG. 1) extending along the bottom surface of the bottom wall 51 of the plug-side housing 50, and A four-ply shape extending from the inner edge of the bottom plate portion 71 extending in the connector width direction (Y-axis direction) (the side edge on the back side in FIG. 5 (A), the side edge on the labor side in FIG. 5 (B)). The formed plate portions 72, 73, 74, 75 (an inner locked plate portion 72, an inner reinforcing plate portion 73, an outer reinforcing plate portion 74, an outer locked plate portion 75 described later) and the inner edge of the bottom plate portion 71 directly Side plate portions 76 that extend outward in the terminal arrangement direction (X2 direction) from both side portions of the connected inner locked plate portion 72 in the connector width direction, and an upper plate that extends inward in the connector width direction from the side plate portion 76 Part 77 and an end plate part 78 extending downward (Z1 direction) from the outer edge of the upper plate part 77. .

  As seen in FIG. 1, the bottom plate portion 71 has a plate surface exposed from the bottom surface of the bottom wall 51 of the plug-side housing 50, and is solder-connected to the ground circuit portion of the circuit board. As seen in FIGS. 5A and 5B, the four-layered plate portions 72, 73, 74, and 75 are located above the bottom plate portion 71 and are upward from the inner edge of the bottom plate portion 71. An inner locked plate part 72 extending to the upper side, an inner reinforcing plate part 73 folded back at the upper edge of the inner locked plate part 72 and extended downward, and folded back at the lower edge of the inner reinforcing plate part 73 and extended upward. The outer reinforcing plate portion 74 and an outer locked plate portion 75 that is folded back at the upper edge of the outer reinforcing plate portion 74 and extends downward.

  As shown in FIG. 5B, the inner locked plate portion 72 includes a base portion 72A extending in the connector width direction and connected to the inner edge of the bottom plate portion 71, and an inner side rising upward from both ends of the base portion 72A. It has a standing part 72B and an inner locked part 72C that protrudes inward in the connector width direction from the upper part of the inner standing part 72B.

  As shown in FIG. 5B, the inner reinforcing plate portion 73 includes a base portion 73A extending in the connector width direction and an inner reinforcing portion 73B that rises upward from both ends of the base portion 73A. The base portion 73A is connected to the outer reinforcing plate portion 74 via the folded portion at the lower edge thereof, and the inner reinforcing portion 73B is connected to the inner standing portion 72B of the inner locked plate portion 72 via the folded portion at the upper edge thereof. Has been. The inner reinforcing portion 73B is formed wider in the connector width direction than the upright portion 72B of the inner locked plate portion 72, and the inner edge (side edge extending in the vertical direction) of the inner reinforcing portion 73B is the connector width direction. It is in the same position as the tip (inner end) of the locked portion 72C of the inner standing portion 72B. Thus, in the present embodiment, the inner reinforcing portion 73B of the inner reinforcing plate portion 73 extends over a range including the inner standing portion 72B and the inner locked portion 72C of the inner locked plate portion 72 in the connector width direction. The inner standing part 72B and the inner locked part 72C are reinforced.

  As shown in FIG. 5A, the outer reinforcing plate portion 74 and the outer locked plate portion 75 invert the inner reinforcing plate portion 73 and the inner locked plate portion 72 in the terminal arrangement direction (plate thickness direction), respectively. It has a shape like that. The outer reinforcing plate portion 74 has a base portion 74A extending in the connector width direction and two outer reinforcing portions 74B standing from the base portion 74A. The outer locked plate portion 75 includes a base portion 75A extending in the connector width direction and having a lower end forming a free end, two outer rising portions 75B rising from the base portion 75A, and an inner edge of the upper portion of the outer rising portion 75B. And an outer locked part 75 </ b> C protruding from the outer side. The outer reinforcing portion 74B of the outer reinforcing plate portion 74 extends over a range including the outer standing portion 75B and the outer locked portion 75C of the outer locked plate portion 75 in the connector width direction, and the outer rising portion 75B and the outer locked portion. The portion 75C is reinforced.

  The plate portions 72, 73, 74, 75 having such a shape are arranged so as to overlap in the terminal arrangement direction as described above, and the plate portion 72 in the terminal arrangement direction is located at the center position in the connector width direction. , 73, 74, and 75, and a receiving groove 79 that opens upward is formed. The receiving groove 79 lowers a part of the lock fitting 30 provided in the receptacle connector 1, specifically, the main reinforcing portion 37 and the auxiliary reinforcing portions 38A and 38B of the inner plate portion 30B in the connector fitting state. Accept from.

  Further, the plate portions 72, 73, 74, and 75 are held by the plug-side housing 50, and as shown in FIG. 2, the locked portion 72 </ b> C of the inner locked plate portion 72 and the inner reinforcing plate portion 73. The inner edge (the side edge in the range corresponding to the locked portion 72C of the inner locked plate portion 72 in the connector width direction) is the inner wall surface (the surface perpendicular to the connector width direction) of the end groove portion 55A of the plug-side housing 50 ) And is located in the end groove portion 55A.

  In a state where the locked metal fitting 70 is held on the end wall 55 of the plug-side housing 50 by integral molding, the base portions 72A, 73A, 74A, and 75A of the plate portions 72, 73, 74, and 75 of the locked metal fitting 70, respectively. Extends in a range including the end groove portion 55A in the connector width direction, and part of the upright portions 72B and 75B and the reinforcing portions 73B and 74B (a portion excluding an inner edge portion described later) is an inner wall surface of the end groove portion 55A ( The inside of the end wall 55 extends upward along a plane perpendicular to the connector width direction. 1 and 2, as shown in FIGS. 1 and 2, the locked portions 72C and 75C of the locked plate portions 72 and 75 and the inner edge portions of the reinforcing portions 73B and 74B of the reinforcing plate portions 73 and 74 (72C, A side edge portion in a range corresponding to 75C) protrudes from the inner wall surface of the end groove portion 55A and is located in the end groove portion 55A. Further, the receiving groove 79 of the metal fitting 70 to be locked is located in the center in the connector width direction within the end groove 55A.

  Further, the side plate portion 76, the upper plate portion 77, and the end plate portion 78 are respectively a side surface (a surface perpendicular to the connector width direction), an upper surface (a lower surface in FIG. 1), and an end surface of the end wall 55 of the plug-side housing 50. The plate surface is exposed from (a surface perpendicular to the terminal arrangement direction), and the side surface, the upper surface, and the end surface of the end wall 55 are protected. Further, the side plate portion 76 is a plate surface exposed from the side surface of the end wall 55 in the connector fitting state, and comes into contact with the outer contact piece 47 of the shield member 40 of the receptacle connector 1 to be electrically connected. ing.

  As seen in FIG. 7A, in this embodiment, the outer locked portion 75C of the locked metal fitting 70 located in the front (rightward in FIG. 7A) is the locking protrusion 35A of the lock metal fitting 30. -1 and the inner locked portion 72C of the locked metal fitting 70 located rearward (leftward in FIG. 7A) is engaged with the lock protrusion 35B-1 of the lock metal fitting 30. ing. Therefore, in the present embodiment, the inner locked portion 72C of the locked metal fitting 70 positioned at the front and the outer locked portion 75C of the locked metal fitting 70 positioned at the rear are not used. As described above, the lock fitting 30 can be provided in a posture obtained by reversing the posture shown in FIG. 4 from left to right. In this case, the inner metal lock of the lock fitting 70 positioned in the front is provided. The part 72C and the outer locked part 75C of the locked metal fitting 70 located behind are used as the locked part.

  Next, a connector fitting operation between the receptacle connector 1 and the plug connector 2 will be described with reference to FIGS. 1, 4, 6 and 7A. First, the receptacle connector 1 and the plug connector 2 are attached to the corresponding circuit boards by solder connection. Next, as shown in FIG. 1, the receptacle connector 1 is set in a posture in which the receiving portion 16 faces upward, and the receiving portion 56 (see FIG. 2) of the plug connector 2 is positioned below the receptacle connector 1. The posture is suitable for.

  Next, the plug connector 2 is lowered while maintaining the posture of FIG. 1 so that the protruding wall 12 of the receptacle connector 1 enters the receiving portion 56 of the plug connector 2 from below, and the peripheral wall 53 of the plug connector 2 is moved to the receptacle. The connector 1 is inserted into the receiving portion 16 from above. As a result, the contact leg portion 62A of the plug terminal 60 of the plug connector 2 contacts the contact portion 22A of the receptacle terminal 20 of the receptacle connector 1 or the inner contact piece 48 of the shield member 40 with contact pressure. Further, as seen in FIGS. 6A and 6B, the side plate portion 76 of the locked metal fitting 70 of the plug connector 2 has contact pressure with the outer contact piece 47 of the shield member 40 of the corresponding receptacle connector 1. Contact.

  Further, in the connector fitting process, the locked portions 75C and 72C of the two locked metal fittings 70 provided on the plug connector 2 are respectively connected to the lock projections 35A-1 and 35B-1 of the lock metal fitting 30 at the lock position. Abutting on the upper edge (inclined edge), the lock portions 35A and 35B are pressed with a pressing force directed forward (rightward in FIG. 4) in the terminal arrangement direction. When receiving the above pressing force, the lock portions 35A and 35B move forward, and are accommodated in the front end wall groove portion 17B and the rear protruding wall groove portion 17F, respectively, at the lock release position (see FIG. 7B). Brought about. At this time, the movement of the lock portions 35 </ b> A and 35 </ b> B is permitted by elastic deformation (compression) of the elastic deformation portion 45 pressed by the contact portion 36 </ b> B- 1 of the lock fitting 30.

  As described above, when the lock portions 35A and 35B are brought to the unlock position, the plug connector 2 can be further lowered. Then, as seen in FIG. 7 (A), the outer locked portion 75C of the locked metal fitting 70 on the front side (right side in FIG. 7 (A)) and the rear side (left side in FIG. 7 (A)). When the inner locked portion 72C of the locked metal fitting 70 reaches a position below the lock protrusions 35A-1 and 35B-1 of the lock metal fitting 30, the lock portions 35A and 35B are released from the above-described pressing force. As a result, the elastic deformation portion 45 is restored rearward so as to reduce the amount of elastic deformation, and returns to the original lock position. As shown in FIG. 7A, the lock protrusions 35A-1 and 35B-1 that have returned to the lock position are positioned above the corresponding locked portions 75C and 72C, respectively. , 72C to be locked in the connector pulling-out direction (upward). At this time, the protruding tip of the front locking projection 35A-1 contacts the plate surface of the outer reinforcing portion 74B of the locked metal fitting 70 provided in the front, and the protruding tip of the rear locking projection 35B-1 is rearward. It contacts the plate surface of the inner reinforcing portion 73B of the provided metal fitting 70 to be locked.

  Further, the front auxiliary reinforcing portion 38A of the lock fitting 30 and the main reinforcing portion 37 in the range corresponding to the front auxiliary reinforcing portion 38A are correspondingly received from the lower side to the receiving groove portion 79 of the locked metal fitting 70 positioned forward. enter in. On the other hand, the rear sub-reinforcing portion 38B of the lock fitting 30 and the main reinforcing portion 37 in the range corresponding to the rear sub-reinforcing portion 38B are received from the lower side into the receiving groove portion 79 of the locked fitting 70 positioned rearward. enter in. As a result, the reinforcing portions 37, 38 </ b> A, and 38 </ b> B of the lock fitting 30 enter the end groove portion 55 </ b> A of the end wall 55 of the plug connector 1.

  In this manner, the terminals 20 and 60 are connected to each other, the outer contact piece 47 and the side plate portion 76 are connected to each other, and the lock fittings 30 and 70 are locked together, thereby completing the connector fitting operation. Even if the plug connector 2 is inadvertently lifted in the connector extraction direction (upward) in the connector fitting state, the upper edges of the upright portions 32A, 32C and the restricted portion 34A are provided on the receptacle-side housing 10. Since it contacts the restriction surfaces 17B-1, 17C-1, and 17E-2, the movement of the lock fitting 30 upward is restricted. As a result, the locked state between the lock portions 35A and 35B of the lock fitting 30 and the locked portions 75C and 72C of the lock fitting 70 is maintained, and a stable locked state can be maintained.

  In the present embodiment, as described above, the lock fitting 30 of the receptacle connector 1 is provided with the inner plate portion 30B, and the inner plate portion 30B includes not only the inner base portion 31B but also the lock portions 35A, in the terminal arrangement direction. By providing the main reinforcing portion 37 and the sub reinforcing portions 38A and 38B in a range including 35B, a large height dimension of the inner plate portion 30B is secured. Accordingly, since the lock fitting 30 as a whole has sufficient strength against bending deformation with respect to the lock fitting 30, particularly in the connector insertion / removal direction, the lock fitting 30 is attached to the plug connector 2 in the connector fitting state. Even if a large unintentional output is received from the lock fitting 70, the lock fitting 30 can counter the extraction output without bending deformation.

  Further, in the present embodiment, as described above, in the locked metal fitting 70 of the plug connector 2, the reinforcing plate portions 73 and 74 are provided, and the reinforcing portions 73B and 74B located in the range including the locked portions 72C and 75C. Thus, the locked portions 72C and 75C are reinforced. Therefore, even when the locked portions 72C and 75C receive a large unplugging force from the lock fitting 30 of the receptacle connector 1 with a sufficient strength, it is possible to counteract with sufficient strength.

  Further, in the present embodiment, the main reinforcing portion 37 and the auxiliary reinforcing portions 38A and 38B of the lock fitting 30 of the receptacle connector 1 are the receiving groove portion 79 of the locked fitting 70 of the plug connector 2, and thus the end groove portion 55A of the plug-side housing 50. Since it enters into the part from below, the lock fitting 30 and the lock fitting 70 overlap in the connector fitting direction by the amount of the entered dimension. Therefore, the height of the connector assembly can be reduced by the above dimensions in the connector fitting state.

  In the present embodiment, as described above, when the lock fitting 30 receives the biasing force from the elastic deformation portion 45 of the shield member 40 and is brought into the locked position in the connector fitting state, The protruding tips of the lock projections 35A-1 and 35B-1 are in contact with the plate surfaces of the reinforcement portions 74B and 73B of the corresponding metal fittings 70 to be locked, respectively. As a result, the reinforcing portions 74B and 73B are pressed in the terminal arrangement direction by the lock projections 35A-1 and 35B-1, and the movement of the plug connector 2 in the same direction is restricted. Therefore, it is possible to prevent the generation of noise due to the connectors 1 and 2 reciprocating relative to each other in the terminal arrangement direction and the lock protrusions 35A-1 and 35B-1 and the reinforcing portions 74B and 73B colliding with each other. In addition, damage to the lock protrusions 35A-1 and 35B-1 and the reinforcing portions 74B and 73B can be prevented.

  In the modification shown in FIGS. 8A and 8B, the metal fitting 170 to be locked has two upright portions 172 rising from one base portion 171, but instead of this, for example, a base portion 171 may be formed as a member that is divided at the center position in the connector width direction, that is, as a member in which one upright portion stands from one base portion. When the locked metal fitting is formed in such a shape, the two metal fittings to be locked are held by the respective end walls of the housing. At this time, the two locked portions are arranged so that the locked portions face each other in the connector width direction.

  Next, the connector extracting operation will be described with reference to FIGS. 7 (A) and 7 (B). When the plug connector 2 in the connector fitting state with the receptacle connector 1 is pulled out, the pressing surface 30C-1 of the unlocking operation portion 30C of the lock fitting 30 of the receptacle connector 1 is moved forward in the terminal arrangement direction (FIG. 7). The release operation is performed by pressing toward (to the right at (A)). When the unlocking operation part 36 receives the forward pressing force as the releasing operation force, the elastic pieces 45A and 45B of the elastic deformation part 45 of the shield member 40 are pressed forward by the contact part 36B-1 of the lock fitting 30. Elastically deforms. Then, similarly to the description of the connector fitting process described above, the elastic deformation portion 45 is compressed and elastically deformed, and the lock portions 35A and 35B are moved forward.

  As a result, as shown in FIG. 7B, the lock protrusions 35A-1 and 35B-1 are accommodated in the front end wall groove part 17B and the rear protrusion wall groove part 17F, and brought to the unlocked position. The lockable state in which the locking protrusions 35A-1 and 35B-1 and the locked portions 75C and 72C of the locked metal fitting 70 of the plug connector 2 can be locked is released. Then, by lifting the plug connector 2 in the connector extraction direction (upward), the plug connector 2 is extracted without difficulty, and the connector extraction operation is completed.

  The lock portions 35A and 35B of the lock fitting 30 have the lock projections 35A-1 and 35B-1 positioned in the receiving portion 16, and the other portions in the front end wall groove portion 17B and the rear protrusion wall groove portion 17F. Is located. In other words, the lock portions 35A and 35B are located within the range of the receptacle-side housing 10 in the terminal arrangement direction, that is, the longitudinal direction of the receptacle-side housing 10, and are moved within this range. Therefore, even if the protrusions of the lock protrusions 35A-1 and 35B-1 are ensured to be large, the lock portions 35A and 35B are arranged in the terminal arrangement direction within the above existing range regardless of the presence or absence of the lock fitting 30. Therefore, it is possible to easily secure a space for allowing the movement of the connector, so that an increase in size of the connector in the terminal arrangement direction can be avoided.

  Further, in the present embodiment, the movement of the lock fitting 30 in the terminal arrangement direction is allowed by the elastic deformation of the elastic deformation portion 45 of the shield member 40. As described above, since the elastic deformation portion 45 is provided on the shield member 40 which is a separate member from the lock fitting 30, it is not necessary to give the lock portions 35A and 35B themselves elasticity, so that the rigidity of the lock portions 35A and 35B itself is increased. As a result, the strength can be increased and a stable locked state can be obtained. Further, by increasing the protruding amount of the lock portions 35A and 35B, the rigidity and thus the strength of the lock portions 35A and 35B can be further increased, so that the stability of the locked state can be further improved.

  Further, in the above-described Patent Document 1 cited as the prior document, since the elastic deformation member is provided as a separate member from the shield member, the number of parts constituting the connector is increased and the manufacturing cost is increased accordingly. In addition, when manufacturing the connector, there is a problem that the manufacturing process of the connector becomes complicated because the process of attaching the elastically deformable member to the housing is required. On the other hand, in the present embodiment, as described above, since the elastic deformation portion 45 is provided integrally with the shield member 40, the elastic deformation member as in Patent Document 1 is separated from the shield member. Compared with the case where it is provided as a member, the number of parts can be reduced, and the manufacturing cost can be suppressed. Further, when the connector is manufactured, the elastic deformation portion 45 is also attached at the same time as the shield member 40 is attached. Therefore, the step of attaching the elastic deformation member to the housing can be omitted, and the manufacture of the connector is simplified.

  In the embodiment described above, the plate portions 30A and 30B of the lock fitting 30 of the receptacle connector 1 are made by bending a metal plate member, but instead of this, the plate portion of the lock fitting. For example, as described below, it may be made by cutting a metal member.

  FIG. 8 is a perspective view showing a lock fitting 130 according to a modification. As shown in FIG. 8, the lock fitting 130 has a plate portion formed by cutting a rod-shaped metal member extending in the front-rear direction (terminal arrangement direction), and the lock release operation portion 130C is formed by bending the metal member. It is made. The plate portion of the lock fitting 130 is integrated with the four plate portions of the lock fitting 30 shown in FIG. 3, ie, the two outer plate portions 30A and the two inner plate portions 30B in the plate thickness direction (connector width direction). It has a shape like that. That is, the lock fitting 130 is a solid member in which the material is continuous in any of the connector fitting direction, the terminal arrangement direction, and the connector width direction. In FIG. 8, portions corresponding to the respective portions of the lock fitting 30 according to the above-described embodiment are denoted by reference numerals with “100” added thereto, and description thereof is omitted. In this lock fitting 130, the connecting portion 130D has a shape as if the two plate portions of the connecting portion 30D of the lock fitting 30 in FIG. 3 are integrated, and the unlocking operation portion 130C is connected to the connecting portion 130D. Is located on one side in the connector width direction.

  In the lock fitting 130, at the positions of the lock projections 135A-1 and 135B-1 in the terminal arrangement direction, the lock projections 135A-1 and 135B-1 are arranged in the thickness direction of the lock fitting 130 (connector width direction). It is formed in a part of the whole range, and the reinforcing part 137 is formed in the remaining part of the whole range. Since the lock projections 135A-1 and 135B-1 and the reinforcement portion 137 are directly connected and integrated in the thickness direction, the lock projections 135A-1 and 135B-1 are reinforced more firmly. Has been. Further, the plate portion of the lock fitting 130 is integrally formed with a thickness dimension over the entire connector width direction except for the lock protrusions 135A-1 and 135B-1 and the reinforcing portion 137 described above. The strength of each part itself is also improved. As described above, since a greater strength can be obtained over the entire plate portion, it is possible to sufficiently counter an inadvertent connector output.

  Here, as a modification, the lock fitting 130 made of a metal member has been described with reference to FIG. 8, but instead of this, for example, the lock member having the shape shown in FIG. It is also possible to make it.

DESCRIPTION OF SYMBOLS 1 Receptacle connector 51 Bottom wall 2 Plug connector 53 Perimeter wall 10 Receptacle side housing 54 Side wall 11 Bottom wall 55 End wall 12 Projection wall 55A End groove part 13 Peripheral wall 56 Receiving part 14 Side wall 60 Plug terminal 15 End wall 70 Locked metal fitting 16 Receiving part 72 Inner locked plate portion 17 Lock fitting receiving groove portion 72A Base portion 20 Receptacle terminal 72B Inner standing portion 30 Lock fitting portion 72C Inner locked portion 31A Outer base portion 73 Inner reinforcing plate portion 31B Inner base portion 73A Base portion 38B Rear auxiliary reinforcing portion 73B Inner reinforcing portion 32C Rear standing portion 74 Outer reinforcing plate portion 32A Front standing portion 74A Base portion 35A-1 Front locking projection portion 74B Outer reinforcing portion 35B-1 Rear locking projection portion 75 Outer locked plate portion 37 Main reinforcing portion 75A Base portion 38A Front auxiliary reinforcing portion 75B Outer standing part 32B Intermediate standing part 75C Outside locked part 50 Plug side housing 79 Receiving groove part

Claims (6)

An electrical connector fitted and connected to a mating connector so as to be insertable / removable, wherein the electrical connector has a housing extending in a direction perpendicular to the connector fitting direction as a longitudinal direction, and the longitudinal direction as a terminal arrangement direction. In the electrical connector having a terminal arranged in the housing, a lock member held in the housing and an elastically deforming portion, the housing having a receiving portion for receiving the mating connector,
The lock member includes a base portion having a portion extending in the terminal arrangement direction, an upright portion rising from a part of the base portion toward the connector fitting direction within the range of the housing in the terminal arrangement direction, and the upright portion. A locking projection that protrudes toward one end of the housing in the terminal arrangement direction and can be prevented from being pulled out when locked to a locked portion provided on the mating connector, and the connector fitting Over the range including the lock projections in the terminal arrangement direction while standing up from the base in the connector fitting direction at a position adjacent to the lock projections in the connector width direction perpendicular to both the direction and the terminal arrangement direction. And a reinforcing part that extends,
The lock member is disposed in the housing accommodating portion, and the lock protrusion protrudes to the receiving portion and engages with the locked portion of the mating connector, and the other end side of the housing in the terminal arrangement direction It is movable between the unlock position where it can be unlocked by moving to
The electrical connector is characterized in that the elastic deformation portion biases the lock member toward the lock position. The lock member is made of a metal plate, and has a stacked shape in which a plurality of plate portions are stacked in the connector width direction in a state of being bent in the plate thickness direction of the metal plate,
The lock protrusion is formed on a part of the plurality of plate portions,
The electrical connector according to claim 1, wherein the reinforcing portion is formed on another plate portion adjacent to the some plate portions among the plurality of plate portions. The lock member is a solid member in which the material is continuous in any of the connector fitting direction, the terminal arrangement direction, and the connector width direction,
The lock protrusion is formed in a part of the entire range in the connector width direction of the lock member,
The electrical connector according to claim 1, wherein the reinforcing portion is formed in a remaining portion of the entire range in the connector width direction of the lock member.   The locking protrusion of the locking member is biased by the elastic deformation portion when the connector is in the locked position in the connector fitting state, and the protruding tip is in contact with the member having the locked portion of the mating connector. The electrical connector according to any one of claims 1 to 3. The electrical connector has a shield member attached to the housing,
The electrical connector according to any one of claims 1 to 4, wherein an elastically deforming portion is formed integrally with the shield member. An electrical connector according to any one of claims 1 to 5 and a mating connector fitted and connected to the electrical connector, wherein the mating connector is in the connector-fitted state, and the electrical connector An electrical connector assembly comprising: a locked portion that can be locked in a direction that prevents the connector from being pulled out with respect to a lock protrusion of the lock member.

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