JP2018181469A - Electrical connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve an electrical connector in which a lead wire extends outward from the rear end face of a connector housing such that connection to a connection target member can be performed with good workability without being hindered by the lead wire.SOLUTION: In an electrical connector, there is newly provided a pressing assisting member 72 that is detachably attached to the outside of a connector housing 52, includes an outer wall surface 71 orthogonal to the connecting direction of the connector, and defines an accommodating chamber 82 that accommodates the lead wire 64.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electrical connector, and more particularly to an electrical connector with leads connected thereto, such as a plug and a jack.

  As an electrical connector, there is known an electrical connector in which a lead wire extends outward from an end face (hereinafter referred to as a rear end face) opposite to the connection direction of a connector housing to a connection target member (for example, Patent Document 1) .

Japanese Patent Laid-Open No. 2000-200649

  When connecting the connector housing to the connection target member, putting a finger or a tool on the rear end face of the connector housing and pushing the connector housing against the connection target member has good workability and complete connection It is easy.

  However, when the lead wire extends outward from the rear end face of the connector housing as in the above-described electrical connector, the lead wire becomes an obstacle and the finger or the tool can not be applied to the rear end face of the connector housing The connection of the electrical connector to the connection target member can not be performed with good workability. In particular, the connection of the electrical connector by means of a mechanical push in which a tool is used can not be implemented due to the possibility of breakage of the lead wires. Such problems become more pronounced with smaller electrical connectors, with smaller connector housings.

  The problem to be solved by the present invention is that, even with an electrical connector in which the lead wire extends outward from the rear end face of the connector housing, the connection to the connection target member can be performed with good workability without being interrupted by the lead wire. To improve.

  The electrical connector according to one embodiment of the present invention is an electrical connector in which at least one lead (64) extends outward from the rear end of the connector housing (52), the back of the connector housing (52) The lead wire (64) is housed with an opening (73) detachably attached to the end and provided at the side portion for leading out the lead wire and a rear wall (74) provided at the rear end side. It has a pressing assisting member (72) that defines a storage chamber (82).

  According to this configuration, the rear wall (74) of the pressing assisting member (72) is used as a pressing portion at the time of connector connection, so that the connection target of the connector housing (52) is not disturbed by the lead wire (64). Connection to the member (10) is performed with good operability.

  In the above electrical connector, preferably, the pressing assisting member has the rear wall (74), a pair of left and right side walls (78, 80), and an upper wall (76), and the upper wall (76). And / or the end face (72A) of the both side walls (78, 80) is in contact with the rear end face (52B) of the connector housing (52).

  According to this configuration, the pressing force at the time of connector connection is favorably transmitted from the pressing assisting member (72) to the connector housing (52).

  In the above electrical connector, preferably, the side walls (78, 80) and the engaged portion (88) provided on the connector housing (52) are resiliently engageable and resiliently engaged with the pressure assist An engagement portion (86) is provided for securing the member (72) to the connector housing (52).

  According to this configuration, the pressing assistance member (72) can be easily attached to and detached from the connector housing (52).

  In the above electrical connector, preferably, an engagement portion (68) for holding the connection state of the connector housing (52) with respect to the connection object and a lock for releasing the connection state of the engagement portion (68) A lock release prohibition unit (70) having a release operation unit (70), and prohibiting displacement of the lock release operation unit (70) in a state where the pressing assisting member (72) is mounted to the connector housing (52). 90).

  According to this configuration, the lock release is prohibited only by the addition of the lock release prohibition unit (90).

  In the above electrical connector, preferably, the connector housing (52) includes a terminal holding portion (53) for holding a connector terminal (56) to which the lead wire (64) is connected; and the terminal holding portion (53) Provided on the outside of the connector housing (52) and engageable with the engaged portion (28) formed on the connection target member (10) so as to engage and disengage with the connection target member (10) An engaging portion (68) for holding the lock, and a lock releasing operation portion (70) for displacing the engaging portion (68) from being engaged with the engaged portion (28) by being pressed. And the pressing assisting member (72) enters between the unlocking operation portion (70) and the terminal holding portion (53) in a state where the pressing assisting member (72) is attached to the connector housing (52) and the unlocking is performed. Operation unit (70) It includes lock release prohibition unit that prohibits the displacement (90).

  According to this configuration, the lock release is prohibited only by the addition of the lock release prohibition unit (90).

  In the above electrical connector, preferably, the connector housing (52) extends away from the outer wall (53A) of the terminal holding portion (53) and has a locking piece coupled to the outer wall (53A) at both ends. (66), the locking portion (66) is provided with the engagement portion (68), and a part of the locking portion (66) forms the lock release operation portion (70). A gap (67) is defined between the outer wall (53A) and the locking piece (66), which is open to the end face (52B) and into which the unlocking prohibiting portion (70) can be inserted. Are

  According to this configuration, the lock release can be reliably prohibited with a simple configuration.

  In the above electrical connector, preferably, the engagement portion (68) is an elastic deformation of the locking piece (66) in a state where the lock release prohibition portion (70) is inserted into the air gap (67). It is engageable with the said to-be-engaged part (28) in an inertial lock type under the above.

  According to this configuration, it is possible to connect the connector housing (52) and the connection target member (10) in a state where the pressing assisting member (72) is attached to the connector housing (52).

  According to the electrical connector according to the present embodiment, even with the electrical connector in which the lead wire extends outward from the rear end surface of the connector housing, connection with the connection target member is performed with good workability without being disturbed by the lead wire.

Perspective view of an electrical connector according to an embodiment of the invention The perspective view of the partial cross section of the electrical connector by this embodiment The perspective view of the state which removed the pressing assistance member of the electrical connector by this embodiment Cross-sectional view of the electrical connector according to the present embodiment Sectional drawing of the state which removed the pressing assistance member of the electrical connector by this embodiment A perspective view of the female connector housing of the electrical connector according to the present embodiment The perspective view of the partial cross section of the female connector housing of the electrical connector by this embodiment Slope view of the pressing assisting member of the electrical connector according to the present embodiment A perspective view of the female connector housing and the side retainer of the electrical connector according to the present embodiment Sectional drawing of the arrangement | positioning part of the side retainer of the female connector housing of the electrical connector by this embodiment An enlarged cross-sectional view of the main part of the placement portion of the same side retainer The enlarged front view of the principal part of the arrangement part of the side retainer (A arrow view of FIG. 11)

  In the following, one embodiment of the electrical connector according to the invention will be described with reference to FIGS.

  The electrical connector of the present embodiment is a relay connector, and as shown in FIGS. 1 to 5, has a male connector 10 and a female connector 50 connected to each other.

  The male connector 10 has a male connector housing 12 made of a synthetic resin molded product. The male connector housing 12 has a rectangular solid terminal holding portion 13 and a connector insertion cylindrical portion 15 continuous to the front side (right side when viewed in FIG. 4) of the terminal holding portion 13. The terminal holding portion 13 defines a plurality of terminal chambers 14 in upper and lower two rows and five rows. The connector plug cylinder 15 defines a connector plug chamber 16. The connector insertion chamber 16 is a rectangular parallelepiped space having a rectangular cross-sectional shape, and is open at the front end surface 12A of the male connector housing 12 (the end surface on the right side in FIG. 4). Each terminal chamber 14 extends the terminal holding portion 13 in the left-right direction and opens on one end on the rear end surface 12B (left end surface as viewed in FIG. 4) of the male connector housing 12 on the other It is open toward you.

  A metallic male connector terminal 18 is disposed in each terminal chamber 14. Respective male connector terminals 18 are engaged with locking claws 20 formed for each terminal in the terminal holding portion 13 and a common side retainer 24 made of synthetic resin inserted in a retainer hole 22 formed in the terminal holding portion 13. The male connector housing 12 is locked by engagement. Each male connector terminal 18 includes a lead wire connecting portion 18A with a core barrel located in the terminal chamber 14 and a male connecting portion 18B extended from the terminal chamber 14 to the connector insertion chamber 16.

  The core wires of the lead wires 26 inserted into the respective terminal chambers 14 from the rear end face 12B side of the male connector housing 12 are connected to the lead wire connection portions 18A in a conductive state. Thereby, each lead wire 26 is outward (rearward) from the end surface opposite to the connection direction (right direction) with respect to the female connector 50 which is the connection counterpart (connection target member) of the male connector housing 12, that is, the rear end surface 12B. Extended to

  In the connector plug-in cylindrical portion 15, a fixed-side lock projection (engaged into engagement with the connector plug-in chamber 16 from the wall defining the connector plug-in chamber 16 (upper wall as viewed in FIG. 4) Part) 28 is formed. The fixed-side lock projection 28 is in the vicinity of the open end of the connector insertion chamber 16, and the surface facing the back side of the connector insertion chamber 16 is orthogonal to the insertion direction (connection direction) of the female connector 50 with respect to the connector insertion chamber 16. The locking surface 28A extends in the direction shown in FIG.

  The female connector 50 has a female connector housing 52 made of a synthetic resin molded product. In the description of the female connector 50, the front-rear direction is the reverse of the description of the male connector 10. The left side is the front side and the right side is the rear side as viewed in FIG. The female connector housing 52 has a rectangular solid terminal holding portion 53 which can be inserted into the connector insertion chamber 16. The terminal holding portion 53 defines a plurality of terminal chambers 54 in upper and lower two rows and five rows. Each terminal chamber 54 extends the terminal holding portion 53 in the left-right direction, and opens on one end of the rear end surface 52B (right end as viewed in FIG. 4) of the female connector housing 52 on the other side. The front end face 52A (the left end face as viewed in FIG. 4) is open.

  A metal female connector terminal 56 is disposed in each terminal chamber 54. Each female connector terminal 56 is engaged with a locking claw 58 formed for each terminal in the female connector housing 52 and a common side retainer 62 made of synthetic resin inserted in the retainer hole 60 of the female connector housing 52 Are locked to the female connector housing 52. Each female connector terminal 56 includes a lead wire connecting portion 56A by a core barrel located in the terminal chamber 54 and a female connecting portion 56B into which the male connecting portion 18B is inserted.

  The core wire of the lead wire 64 inserted in each terminal chamber 54 from the rear end surface 52B side of the female connector housing 52 is connected to the lead wire connection portion 56A in a conductive state. Thereby, each lead wire 64 extends outward (rearward) from the end surface opposite to the connection direction (left direction) with respect to the male connector 10 which is the connection counterpart of the female connector housing 52, that is, the rear end surface 52B. .

  The female connector housing 52 includes a locking piece 66 formed by a double supporting piece which extends in the left-right direction away from the upper wall (outer wall) 53A of the terminal holding portion 53 and has both ends fixed to the upper wall 53A. . An air gap 67 is defined between the upper wall 53A and the locking piece 66 by the both.

  At the middle portion of the locking piece 66, a non-returnable movable locking projection (engaging portion) 68 is formed which protrudes upward from the locking piece 66. The movable lock projection 68 has a surface facing the opposite side to the insertion direction (connection direction) of the female connector housing 52 into the connector insertion chamber 16 as the insertion direction (connection direction) of the female connector 50 into the connector insertion chamber 16 The locking surface 68A extends in a direction perpendicular to the

  In the present embodiment, as shown in FIG. 4 and FIG. 5, the female end is reached to a position where the front end face 52A of the female connector housing 52 abuts against the back face 16A of the connector insertion chamber 16 facing the front end face 52A. The state in which the side connector housing 52 is inserted into the connector insertion chamber 16 is referred to as a completely connected state of the connector. In the completely connected state, the male connecting portion 18B and the female connecting portion 56B contact in a conductive state with a predetermined contact length which does not cause a large electrical resistance.

  In this completely connected state, as shown in FIGS. 4 and 5, the movable side locking projection 68 passes over the stationary side locking projection 28 under the elastic deformation of the locking piece 66. Of the fixed lock projection 28 and the lock surface 28A of the fixed lock projection 28 and the lock surface 68A of the movable lock projection 68 face each other. To be engaged (locked). As a result, the female connector housing 52 is in a locked state in which it is prevented from being pulled out of the connector insertion chamber 16, and the completely connected state is maintained.

  The locking piece 66 includes a portion located outside the connector insertion chamber 16 in the above-described completely connected state on the side of the rear end face 52B, and the portion forms the unlocking operation portion 70. The unlocking operation unit 70 holds the terminal under elastic deformation of the locking piece 66 as shown by a phantom line in FIG. 5 by pressing the flat upper surface 70A downward. The movable side locking projection 68 is displaced downward to be disengaged from the engagement with the stationary side locking projection 28. The lower surface 70 B opposite to the upper surface 70 A of the unlocking operation portion 70 forms the upper surface of the air gap 67.

  In this state, the locking surface 68A of the movable locking protrusion 68 is displaced downward with respect to the locking surface 28A of the fixed locking protrusion 28, and both locking surfaces 28A and 68A face each other. In the unlocked state, the female connector housing 52 can be pulled out of the connector insertion chamber 16 without the movable lock projection 68 interfering with the fixed lock projection 28.

  The connection to the terminal holding portion 53 on the rear end surface 52B side of the locking piece 66 is performed only at the left and right ends by the column portion 69 as shown in FIGS. 3 and 7. Thus, as shown in FIG. 3, the air gap 67 is opened toward the rear end face 52B with the rectangular opening 67A between the left and right pillars 69, and the rear end face 52B is formed around the opening 67A. A flat auxiliary pressing surface 71 which is flush with the surface is formed.

  On the outside of the rear end face 52B of the female connector housing 52, a pressing assisting member 72 made of a synthetic resin molded product is detachably mounted. The pressing assisting member 72 has a rectangular rear wall 74 extending in a direction orthogonal to the connector connection direction, and a rectangular upper wall extending forward from the rear wall 74 along the upper side, the left side and the right side of the rear wall 74 76, having a left wall 78 and a right wall 80, defining a storage chamber 82 for storing the lead wire 64 on the inner side of these walls, the lower side being opened by an opening 73 for taking out the lead wire 64 It has a box shape. As shown in FIG. 8, the pressing assisting member 72 has an opening 84 having a leg 84 extending forward from the left wall 78 and the right wall 80 and having an end 86 at each leg 84. Joint portions 85 are formed two by two.

  As shown in FIG. 1, FIG. 2, FIG. 4 and FIG. 5, the front end surface 72A of the upper wall 76, the left wall 78 and the right wall 80 is an auxiliary pressing surface of the female connector housing 52. The front end face 72A is disposed so as to strike the face 71.

  The pressing assisting member 72 resiliently engages with the locking projections 88 (see FIG. 2, FIG. 3, and FIG. 6) in which the left and right ends 86 are formed on the left and right wall surfaces of the female connector housing 52. It fixes to the female connector housing 52 by this. Thereby, the attachment and detachment of the pressing assisting member 72 with respect to the female connector housing 52 can be easily performed.

  In the state where the pressing assisting member 72 is attached to the female connector housing 52 as described above, the outer wall surface 75 of the rear wall 74 extends in a direction perpendicular to the connecting direction of the connector and is a flat surface parallel to the front end face 72A. I

  As shown in FIGS. 4 and 8, the pressing assisting member 72 has a projecting piece-like lock release prohibiting portion 90 extending forward from the upper wall 76. The lock release prohibition portion 90 can enter the space 67 between the lock release operation portion 70 and the terminal holding portion 53 from the opening 67A, and the pressure auxiliary member 72 is mounted on the female side connector housing 52 to make the space It enters into 67 and abuts on the lower surface 70B of the lock release operating unit 70, and the displacement of the lock release operating unit 70 toward the terminal holding unit 53 is prohibited. As described above, the addition of the lock release prohibition unit 90 reliably prohibits the lock release with a simple configuration.

  Thus, in the state where the pressing assisting member 72 is attached to the female connector housing 52, the connection between the male connector 10 and the female connector 50 is released carelessly without being in the unlocked state. There is no That is, the female connector housing 52 is not pulled out of the connector insertion chamber 16 carelessly, and the safety and reliability of the connection of the connector are improved.

  In a state in which the pressing auxiliary member 72 is mounted to the female connector housing 52, all the lead wires 64 are bent downward while being stored in the storage chamber 82, and are pressed without irregularly disengaging It is taken out below the auxiliary member 72. As a result, the pressing assisting member 72 forms a bundle of the plurality of lead wires 64, the extraction of the plurality of lead wires 64 from the female connector housing 52 is summarized on the lower side, and the handleability of the plurality of lead wires 64 is improved. .

  In the separation of the male connector 10 and the female connector 50, the pressing assisting member 72 is removed from the female connector housing 52, and the unlocking portion 90 displaces the unlocking operation portion 70 toward the terminal holding portion 53. Is done in a state that is not prohibited.

  The male connector 10 and the female connector 50 are connected by inserting the female connector housing 52 into the connector insertion chamber 16 from the right side as viewed in FIG. 4 with the pressing auxiliary member 72 attached to the female connector housing 52. It is done by. The work of inserting the female connector housing 52 into the connector insertion chamber 16 to the completely connected state is performed by pushing the outer wall surface 75 to the left side in FIG. 4 so that the lead wire 64 does not get in the way and lead It works well without applying pressure to the line 64, and it is also possible for the tool to be carried out by the mechanical press used.

  Since the front end face 72A of the pressing assisting member 72 forms an abutment where the auxiliary pressing face (rear end face) 71 of the female connector housing 52 strikes, the pressing force at the time of connector connection is from the pressing assisting member 72 to the female connector It is well transmitted to the housing 52.

  In the state where the pressing assisting member 72 is attached to the female connector housing 52, displacement of the unlocking operation portion 70 to the terminal holding portion 53 side is prohibited, but the movable side locking projection 68 is movable When the front side of the side locking projection 68 is pressed against the rear end face 52B of the female connector housing 52, the locking piece 66 is elastically deformed downward, whereby the stationary side locking projection 28 is inertially locked. The locking surface 68A faces the locking surface 28A of the fixed-side locking projection 28 in the completely connected state. As a result, the connection between the male connector 10 and the female connector 50 is locked and prevented.

  The connection between the male connector 10 and the female connector 50 can also be performed in a state in which the pressing assisting member 72 is removed from the female connector housing 52. In this case, an operation of inserting the female connector housing 52 into the connector insertion chamber 16 using the auxiliary pressing surface 71 of the female connector housing 52 may be performed.

  Next, the details of the retainer structure by the side retainer 62 provided in the female connector 50 will be described with reference to FIGS.

  The retainer hole 60 formed in the female connector housing 52 extends the boundary portion (see FIGS. 4 and 5) of the upper and lower two stages of the terminal chamber 54 in the left and right arrangement direction of the terminal chamber 54, and the female connector housing The through hole 52 is a through hole whose both ends are open.

  The side retainer 62 includes a rod-shaped retainer body 100 and an end flange portion 102 formed at the outer end of the retainer body 100. The end flange portion 102 has a flat plate shape extending in a direction orthogonal to the axial direction of the retainer body 100, and is exposed to the outside of the female connector housing 52 in a state where the retainer body 100 is inserted into the retainer hole 60. , Can be visually recognized by the worker from the outside.

  The retainer body 100 has contact portions 100A provided at the top and bottom, and by being inserted into the retainer hole 60, as shown in FIGS. 4 and 5, each contact portion 100A is a terminal chamber. It is exposed at 54 and abuts on the rear end 56C of the female connecting portion 56B of each of the upper and lower female connector terminals 56 in each row. By this abutment, the respective female connector terminals 56 are locked to the female connector housing 52 and are prevented from being pulled backward from the terminal chamber 54.

  The retainer body 100 has a recess 100B (see FIGS. 4 and 5) only on the lower side. On the lower side of the inlet portion of the retainer hole 60, a protrusion 60A (see FIGS. 6 and 9) with which the recess 100B slidably engages is formed. With this structure, a foolproof action is obtained which prohibits the retainer body 100 from being vertically inverted and inserted into the retainer hole 60.

  The end flange portion 102 is formed with a long hole 102A extending up and down along the rear edge near the rear edge and a notch 102B extending up and down the rear edge, and the long hole 102A and the notch 102B An elastically deformable portion 104 is defined by the dovetailed bridge piece. In the elastically deformable portion 104, a projecting piece 105 extending inward from the elastically deformable portion 104 is integrally formed. At the free end of the projecting piece 105, an engaging claw 106 (see FIG. 11) projecting downward from the long hole is integrally formed.

  In the female connector housing 52, the entire end flange portion 102 is fitted on the side of the inlet portion of the retainer hole 60, and an expanded recess 61 having the same depth as the thickness of the end flange portion 102 is formed. The female connector housing 52 is formed with an engagement projection 63 which protrudes into the expansion recess 61 and engages with the engagement claw 106.

  As shown in FIGS. 11A to 11C, when the retainer main body 100 is inserted into the retainer hole 60, the engaging claw 106 can be inserted at the regular insertion position (predetermined insertion position) of the retainer hole 60. Position), that is, in the process of inserting the entire retainer main body 100 into the retainer hole 60, over the engaging projection 63 under the elastic deformation of the elastic deformation portion 104, and the engaging projection 63 The side retainer 62 is engaged with the female connector housing 52 by resiliently engaging the engagement projection 63 at a predetermined insertion position where the entire retainer body 100 is inserted into the retainer hole 60.

  Thus, as shown in FIGS. 11A to 11C and 12A to 12C, the elastically deformable portion 104 inserts the side retainer 62 to the regular insertion position of the retainer hole 60. Before the engagement claw 106 rides over the engagement projection 63, it elastically deforms from a linear shape into a circular arc shape (arcuate shape), and after the engagement claw 106 rides over the engagement projection 63, the elastic deformation occurs. The force returns from the arc shape to the linear shape.

  The change in shape of the elastically deformable portion 104 is visually recognized by the operator from the outside because the end flange portion 102 is exposed to the outside of the female connector housing 52. As a result, the operator can accurately confirm that the side retainer 62 has been inserted to the regular insertion position of the retainer hole 60 by looking at the shape of the elastic deformation portion 104, which is the case of the side retainer 62. This contributes to preventing the incomplete insertion into the retainer hole 60 in advance.

  Since the end flange portion 102 has a surface area larger than the cross-sectional area of the retainer main body 100, the shape change of the elastically deformable portion 104 increases the size of the elastically deformable portion 104 and is easy to be visually recognized by the operator.

  When the side retainer 62 is inserted to the regular insertion position of the retainer hole 60, the outer surface 102C of the end flange portion 102 and the one outer wall 52C of the female connector housing 52 become flush. This also makes it possible to confirm that the side retainer 62 has been inserted to the correct insertion position of the retainer hole 60, and to reliably determine that the insertion of the side retainer 62 into the retainer hole 60 is incomplete by a plurality of different confirmations. can do.

  Since the engaging claws 106 are provided at the free ends of the projecting pieces 105 extending inward from the elastically deformable portion 104, the engaging claws 106 are not exposed to the outside, and the appearance is good.

  In the state where the side retainer 62 is inserted to the regular insertion position of the retainer hole 60 by the length setting of the retainer body 100, as shown in FIG. 10, the tip surface 100C of the retainer body 100 is the female side connector housing It becomes substantially flush with the other outer wall 52D of 52. This also makes it possible to confirm that the side retainer 62 has been inserted to the correct insertion position of the retainer hole 60, and to reliably determine that the insertion of the side retainer 62 into the retainer hole 60 is incomplete by a plurality of different confirmations. can do. It also looks good.

  The operation of removing the side retainer 62 from the female connector housing 52 can be conveniently performed by pressing the tip end surface 100C of the retainer main body 100 and releasing the engagement between the engagement claw 106 and the engagement projection 63.

  In addition, since the retainer structure of the male connector 10 by the side retainer 24 inserted into the retainer hole 22 of the male connector housing 12 is the same as the retainer structure of the female connector 50 described above, the description thereof is omitted.

  While the present invention has been described above with reference to the preferred embodiments, it is to be understood that the present invention is not limited by such embodiments as can be readily understood by those skilled in the art, and deviates from the spirit of the present invention. It can change suitably in the range which is not. For example, in the case where the unlocking prohibition action is unnecessary, the longitudinal length of the unlocking prohibition part 90 may be shortened, or the unlocking prohibition part 90 may be omitted. The male connector 10 and the female connector 50 are not limited to the horizontal arrangement, and may be in the vertical arrangement or the inclined arrangement. The number of poles (number of terminals) of the electrical connector is not limited to 10, and the minimum may be one. The electrical connector is not limited to the relay connector, and may be an electrical connector in which a member to be connected is attached to a printed circuit board or a device. Moreover, all the components shown in the above embodiment are not necessarily essential, and it is possible to select them as appropriate without departing from the spirit of the present invention.

10: Male side connector 12: Male side connector housing 12A: Front end face 12B: Rear end face 13: Terminal holding portion 14: Terminal chamber 15: Connector insertion cylindrical portion 16: Connector insertion chamber 16A: Back surface 18: Male connector terminal 18A: Lead wire connecting portion 18B: Male side connecting portion 20: Locking claw 22: Retainer hole 24: Side retainer 26: Lead wire 28: Fixed side locking projection (engaged portion)
28A: locking surface 50: female connector 52: female connector housing 52A: front end surface 52B: rear end surface 52C: outer wall 52D: outer wall 53: terminal holding portion 53A: upper wall 54: terminal chamber 56: female connector terminal 56A : Lead wire connection portion 56B: Female side connect portion 56C: End portion 58: Retaining claw 60: Retainer hole 60A: Projection 61: Expansion recess 62: Side retainer 63: Engaging projection (engaged portion)
64: lead wire 66: locking piece 67: air gap 67A: opening 68: movable side locking protrusion (engagement portion)
68A: locking surface 69: pillar portion 70: unlocking operation portion 70A: upper surface 70B: lower surface 71: auxiliary pressing surface 72: pressing auxiliary member 72A: front end surface (collision surface)
73: Opening 74: Rear wall 75: Outer wall 76: Upper wall 78: Left wall (side wall)
80: Right wall (side wall)
82: storage chamber 84: leg 85: opening 86: end (engagement portion)
88: Locking projection (engaged portion)
90: Lock release prohibition portion 100: Retainer main body 100A: Contact portion 100B: Recess 100C: Tip surface 102: End flange portion (end portion)
102A: long hole 102B: notch 102C: outer surface 104: elastic deformation portion (bridge piece)
105: projection 106: engagement claw (engagement portion)

Claims (7)

An electrical connector having at least one lead wire extending outwardly from a rear end of the connector housing, the electrical connector comprising:
An opening for releasably attaching the rear end of the connector housing and an outer wall provided on the rear end side of the connector housing are provided to define a storage chamber for receiving the lead. Electrical connector having a pressing assisting member.   The pressing assisting member has a rear wall, a pair of left and right side walls, and an upper wall, and an end face of the upper wall and / or both side walls forms an abutting surface that strikes the rear end face of the connector housing. The electrical connector according to Item 1.   3. The connector according to claim 2, wherein the side walls are provided with engaging portions for resiliently engaging with the engaged portions provided on the connector housing so as to be able to be engaged and disengaged to fix the pressing assisting member to the connector housing. Electrical connector as described. The connector housing has an engaging portion for holding a connected state with respect to a connection target, and a lock release operating portion for releasing the connected state of the engaging portion.
The electrical connector according to any one of claims 1 to 3, wherein the pressing assisting member includes a lock release prohibiting portion which prohibits displacement of the lock releasing operation portion in a state of being mounted on the connector housing.   The connector housing is engaged with and disengaged from a terminal holding portion for holding a connector terminal to which the lead wire is connected, and an engaged portion provided outside the terminal holding portion and formed on a connection target member of the connector housing. Engaging portion holding the connection state with the connection target member by possible engagement, and being displaced toward the terminal holding portion by being pressed, engagement of the engaging portion with the engaged portion And the pressing assisting member enters between the unlocking operation portion and the terminal holding portion in a state where the pressing assisting member is attached to the connector housing, and the unlocking operation portion is included. The electrical connector according to any one of claims 1 to 3, further comprising a lock release prohibiting portion that prohibits displacement of the connector.   The connector housing includes a locking piece extending away from the outer wall of the terminal holding portion and having both ends coupled to the outer wall, the locking piece being provided with the engagement portion, the locking piece A part of the part constitutes the unlocking operation part, and an opening is formed between the outer wall and the locking piece to the side of the end face to define a gap into which the unlocking prohibition part can be inserted The electrical connector according to claim 5.   The said engaging part is engageable with the said to-be-engaged part under the elastic deformation of the said locking piece part in the state in which the said lock release prohibition part is inserted in the said space | gap. Electrical connector.

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