TW201421823A - Electric connector assembly - Google Patents

Abstract

The subject of the present invention is to provide an electric connector assembly capable of using a simple operation to perform connector insertion without breaking the connector. To solve the problem, in the process of connector insertion, an electric connector (1) for cable in a state of maintaining at lateral gesture is brought to an electric connector (2) for circuit substrate at the upper end. A locking protrusion part (13A) is abutted against the side wall (15) of the substrate side, so that an elastic wrist part (13) elastically performs displacement and moves downward at the same time. When the connector insertion is finished, the locking protrusion part (13A) reaches the position of a locking recess part (31F). By using the elastic wrist part (13) to reduce the elastic displacement, the locking protrusion part (13A) is in a state for being engaged with the edge of the locking recess part (31F), so as to limit the electric connector (1) for cable from moving upward. In the process of connector removal, the electric connector (1) for cable is in an inclined gesture to release the engagement state between the locking protrusion part (13A) and the locking recess part (31F), thereby allowing the electric connector (1) for cable to move toward the removal direction.

Description

Electrical connector assembly

The present invention relates to an electrical connector assembly including a circuit board electrical connector disposed on a mounting surface of a circuit board and a cable electrical connector that is connected to the circuit board electrical connector.

Such an electrical connector assembly system is disclosed in Patent Document 1. The electrical connector assembly system of Patent Document 1 has a socket connector (an electrical connector for a circuit board) disposed on a mounting surface of a circuit board; and, in a state in which the connector is fitted, is held in parallel with the mounting surface Cable connector on the front side of the cable that extends rearward (electrical connector for the cable). In Patent Document 1, the locking projections on the outer side surfaces of the side walls (cable side walls) of the housing of the cable connector are inserted into the side walls of the receptacle connector provided for receiving the cable connector. The locking groove portion on the inner side surface of the (substrate side wall) prevents the cable connector from being inadvertently detached by being positioned at a position where the protruding portion formed on the locking groove portion can be locked.

The locking groove portion of the socket connector is formed to extend in the up-and-down direction and to open downward from the inner side surface of the substrate-side side wall. put. Further, the protruding portion is formed to protrude rearward in the locking groove portion at an upper portion of the front edge of the locking groove portion.

When the connector is fitted, the connector for the cable maintains the tilted posture in which the front end side is lifted, and comes to the receptacle connector from above. Further, the locking projection of the connector for the cable does not interfere with the protruding portion of the receptacle connector and enters the locking groove portion. When the locking projection reaches the bottommost position in the locking groove portion, the front end side of the cable connector is pressed to form a lateral posture parallel to the circuit board. As a result, a part of the locking convex portion is located directly below the protruding portion, and the protruding portion restricts the locking convex portion in the lateral posture from moving upward. Therefore, even if the cable is pushed upward, the cable connector can be prevented from being inadvertently detached by the locking projection being locked to the protruding portion. Further, when the connector is pulled out, the front end side of the cable connector in the lateral position is pushed up to be in an inclined posture, and the locking convex portion can be brought to a position where it is not locked with the protruding portion, and then the positioning can be performed. Pull out the connector for the cable.

[prior technical literature] [Patent Document]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2010-267604

As described above, in the electrical connector assembly of Patent Document 1, when the connector is fitted, first, it is necessary to use a connector for the cable. Become a tilted posture. However, in recent years, the connector has been miniaturized, and it is difficult to perform the operation of tilting the cable connector in an inclined posture, and the cable connector may be unintentionally brought to the socket connector in a horizontal posture close to horizontal. Further, assuming that an erroneous operation of pressing the receptacle connector into the receptacle connector in a lateral posture is performed, the state in which the locking projection of the cable connector interferes with the projection of the receptacle connector becomes When the state of the external force is unreasonably pressed, the locking convex portion and the protruding portion may be damaged.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide an electrical connector for a circuit board and an electrical connector for a cable which can be assembled by a simple operation without causing damage to the connector. Electrical connector assembly.

The electrical connector assembly system of the present invention includes: an electrical connector for a circuit board disposed on a mounting surface of the circuit board; and a fitting direction that is fitted at a right angle to the mounting surface and downwardly The electrical connector for a cable of the electrical connector for a circuit board.

In the electrical connector assembly, in the present invention, the electrical connector for a cable has a cable-side housing that is electrically connected to the cable in parallel with the mounting surface in a state in which the connector is fitted. a front end portion of the cable extending toward the rear of the connector, the cable side housing having: a housing body having two cable side sidewalls extending in the front-rear direction; and an opposite direction from the cable side sidewalls Connector width direction forward An elastic arm portion extending from both side portions of the casing body and elastically displaceable in a width direction of the connector, wherein the elastic arm portion is formed with a projecting locking convex portion facing the width direction of the connector, and the circuit board is used for the circuit board The electrical connector has a substrate-side housing provided with two substrate-side side walls extending in the front-rear direction, and the substrate-side housing is formed at a receiving portion formed between the side walls of the substrate side to receive the cable At least a housing body of the electrical connector, wherein the substrate side wall is formed with a locking recess immersed from a side surface of the substrate side wall at a position corresponding to the locking projection of the cable electrical connector, and the connector is fitted In the process, the cable electrical connector is held in a state in which the cable extending direction is parallel to the circuit board, and is brought from the upper side to the circuit board electrical connector, and the locking convex portion abuts against the substrate side wall. The elastic arm portion is generally elastically displaced while moving downward, and when the connector is fitted, the locking convex portion reaches the locking concave portion. The elastic wrist portion reduces the amount of elastic displacement, so that the locking convex portion is locked with the edge of the locking concave portion, and the cable electrical connector is restricted from moving upward. When the connector is pulled out, the cable is powered. The connector is in an inclined posture in which the front end of the cable electrical connector is located above the rear end, and the lockable state of the locking projection and the edge of the locking recess is released, and the cable is allowed to be powered. The connector moves in a pulling direction that is inclined away from the circuit board from the fitting direction.

In the present invention, the locking projection of the electrical connector for a cable is formed on the elastic arm portion, and the locking projection abuts against the side surface of the side wall of the substrate for the electrical connector of the substrate to cause the elastic wrist. Department The connector is elastically displaced in the width direction, and therefore, the connectors are fitted to each other by pressing the cable with the electrical connector in a lateral posture. Therefore, it is not necessary to make the electrical connector for a cable an inclined posture that is lifted up on the distal end side, and the connector fitting operation can be easily performed in the state of the lateral posture. Further, in the connector fitting process, since the elastic arm portion is elastically displaced, no unreasonable external force acts on the two connectors, and the connector is not damaged.

In the present invention, the electrical connector locking recess of the substrate is formed on the outer side surface of the side wall of the substrate, and the electrical connector for the cable is located in the electrical connector of the substrate when the connector is fitted. The locking projection is formed on a surface of the surface of the elastic arm that faces the outer side surface of the side wall of the substrate, except for the receiving portion. In the present invention, the locking recess may be formed on the inner side surface of the side wall of the substrate, and the electrical connector for the cable may be located in the receiving portion of the electrical connector for the substrate when the connector is fitted, and the locking convex portion may be The portion is formed on a surface of the surface of the elastic wrist that faces the inner side surface of the side wall of the substrate.

In the present invention, the locking recess of the electrical connector for the substrate may have an inclined surface formed on the inner edge of the rear side of the locking recess, the inclined surface being inclined to reduce the depth of the locking recess toward the rear. In the connector fitting state, the locking convex portion of the cable electrical connector in the lateral posture is restricted to move upward by the upper inner edge of the locking recess, and the inclined surface abuts at the connector pulling process. The locking convex portion of the cable electrical connector in the tilting posture elastically displaces the elastic arm portion, and allows the locking convex portion to move in the pulling-out direction.

As described above, in the present invention, the electrical connector for a cable can be fitted to the electrical connector for a substrate even in a lateral posture, but it is inclined when the connector is pulled out. In the present invention, as described above, by providing the inclined surface in the locking recess, when the connector is pulled out during the connector pulling process, when the cable electrical connector is tilted, the locking projection is abutted by the action thereof. The substrate is moved while being inclined on the inclined surface of the locking recess of the electrical connector. Therefore, the position is gradually changed toward the direction in which the depth of the locking recess is small. As a result, the elastic wrist is elastically displaced in the width direction of the connector. Therefore, since the locking convex portion can easily move in the pulling-out direction and detach from the outside of the locking concave portion beyond the inclined surface, the electrical connector for the cable can be easily pulled out.

In the present invention, when the locking recess of the electrical connector for the substrate is viewed in the width direction of the connector, the side surface of the side wall of the substrate is immersed so as to extend obliquely upward toward the rear and open upward, and the front side of the locking recess is opened. The inner edge has a protruding portion that protrudes rearward at a position close to the upper end of the front inner edge, and the locking portion of the cable electrical connector provided in the lateral posture is restricted upward by the protruding portion in the connector fitting state. Moving, and during the connector pull-out process, the locking projection of the cable electrical connector in the tilted position is allowed to move in the pull-out direction.

By tilting the locking recess toward the rear and opening upward, the locking projection does not interfere with the protruding portion of the locking recess when the connector is pulled out in the connector pulling process. It moves in the pull-out direction and is detached from the outside of the lock recess. Therefore, it is easy to pull out the electrical connector for the cable.

As described above, according to the present invention, the connectors can be fitted to each other by directly pressing the cable electrical connector in a lateral posture. Therefore, it is not necessary to make the cable electrical connector into an inclined posture, and the connector fitting operation can be easily performed. Further, in the connector fitting process, since the elastic arm portion of the cable electrical connector is elastically displaced in the connector width direction, an unreasonable external force acts on the two connectors, and the connector can be prevented from being damaged.

1, 101, 201‧‧‧ Cable connector (electrical connector for cable)

2, 102, 202‧‧‧ substrate electrical connector (substrate side electrical connector)

10, 110, 210‧‧‧ cable side housing

11, 111, 211‧‧‧ body parts (housing)

13, 113, 213‧‧ ‧ elastic wrist

13A, 113A, 213A‧‧‧ Rear locking projections (locking projections)

15, 115, 215‧‧‧ cable side wall

30, 130, 230‧‧‧ substrate side shell

31, 131, 231‧‧‧ substrate side wall

31F, 131F, 213F‧‧‧ rear locking recess (locking recess)

31F-1, 131F-1‧‧‧ upper inner wall surface (upper inner edge)

31F-2, 131F-2‧‧‧ sloped surface

231F-1‧‧‧Protruding

Fig. 1 is a perspective view of the electrical connector assembly of the first embodiment as seen from the front side, showing a state before the connector is fitted.

Fig. 2 is a perspective view of the electrical connector assembly of Fig. 1 as viewed from the rear side, showing the state before the connector is fitted.

Fig. 3(A) is an enlarged perspective view showing an elastic wrist portion of the electrical connector for a cable provided in the electrical connector assembly of Fig. 1. (B) is a perspective view of the elastic wrist portion of (A) viewed from the inner side surface side. (C) is a perspective view in which the locking convex portion is drawn only after the elastic arm portion provided in (A), and the locking concave portion of the substrate-side connector is opposed to the display in the connector width direction.

4 is a rear view of the electrical connector assembly viewed from the rear side, wherein (A) shows a state before the connector is fitted, and (B) shows a state in which the connector is fitted.

Figure 5 is a cross section of the electrical connector assembly in the connector fitting state (A) is a cross section showing a right angle to the fitting direction of the connector, (B) is a cross section showing a right angle to the connector width direction, and (C) is a cross section showing a right angle to the front and rear direction.

Fig. 6 is an enlarged cross-sectional view showing the locking portion of the locking projection and the locking recess shown in Fig. 5, and (A) to (C) are enlarged views of the aforementioned locking portions of Figs. 5(A) to (C), respectively.

Figure 7 (A) is a cross-sectional view of the electrical connector assembly in the connector pull-out process, showing a cross-sectional view at right angles to the connector width direction, and (B) a locking projection and a locking recess of (A). A magnified view of the locked portion.

Fig. 8 is a perspective view of the electrical connector assembly of the second embodiment as seen from the front side, showing a state before the connector is fitted.

Fig. 9 is a rear elevational view of the electrical connector assembly of the third embodiment as seen from the rear, showing a state before the connector is fitted.

Fig. 10 is a side view of the electrical connector assembly of Fig. 9 as seen in the width direction of the connector, (A) showing the state before the connector is fitted, and (B) showing the state after the connector is fitted, (C) To show the status of the connector unplugging process. .

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

1 is a perspective view of the electrical connector assembly including the electrical connector for a cable and the electrical connector for a substrate according to the first embodiment, which is viewed from the side opposite to the extending side of the cable, and shows the connector embedded. Before status. 2 is a perspective view of the electrical connector assembly of FIG. 1 as viewed from the rear side, showing the state before the connector is fitted. In FIGS. 1 and 2, one of the plurality of cables C extending in the front-rear direction is displayed in a state of being pulled away toward the rear (the upper right in FIG. 1 and the lower right in FIG. 2).

The electrical connector assembly system of the present embodiment includes a cable electrical connector 1 (hereinafter referred to as a cable connector 1) in which a plurality of cables (six in the present embodiment) are connected; and a circuit board ( The electrical connector 2 for a circuit board on the mounting surface (not shown) (hereinafter referred to as the substrate connector 2). The cable connector 1 is fitted to the substrate connector 2 from above in a fitting direction (see arrows of FIGS. 1 and 2) which is perpendicular to the mounting surface and faces downward (see FIGS. 2 and 2).

The cable connector 1 is a cable side casing 10 made of an electrically insulating material. In the cable side casing 10, the cable side terminal 20 is held by inserting the cable side terminal 20 to which the cable C is connected from the rear. That is, the cable side housing 10 indirectly holds the cable C.

The cable-side terminal 20 is formed by buckling a metal plate after press working, and has a base portion 21 which is an upper surface of the cable-side terminal 20 and extends in the front-rear direction, and is formed from both side edges of the base portion 21 in order. The holding portion 22, the crimping portion 23, and the contact portion 24 are extended and extended. One of the rear end sides of the cable-side terminal 20 is bent to hold the cable C to fasten the front end portion of the sheath C to hold the cable C. One of the intermediate portions in the front-rear direction of the cable-side terminal 20 is bent to a core wire (not shown in FIG. 5(A)) that is bent from the outer periphery of the cable C and is connected to the core wire. Crimp connection. Provided on the front end side of the cable side terminal 20 One of the pair of contact portions 24 is bent so as to be close to each other and then folded back upward to form a facing nip on the inside. The contact portion 24 is in contact with the corresponding contact portion 41 by the plate-shaped corresponding contact portion 41 provided on the substrate-side terminal 40 of the substrate connector 2 to be described later between the nip sheets (see FIG. 5(A)).

The cable side casing 10 has a main body portion 11 having a rectangular parallelepiped shape, an operation portion 12 projecting forward from the main body portion 11, and an elastic wrist portion 13 extending from both side portions of the main body portion 11. As shown in FIG. 2, the main body portion 11 is arranged such that a plurality of terminal holes 14 extending in the front-rear direction and opening toward the rear are arranged in the connector width direction (a direction perpendicular to both the front-rear direction and the vertical direction), and the cable of the cable C is connected. The side terminal 20 is inserted into the terminal hole 14 toward the front. The terminal hole 14 is also opened downward (not shown) in the front portion of the cable-side housing 10, allowing the corresponding contact portion 41 provided on the substrate-side terminal 40 of the substrate connector 2 to pass underneath during the connector fitting process. This opening enters the terminal hole 14.

The main body portion 11 is provided at both end positions in the connector width direction, and includes two cable side side walls 15 having surfaces facing each other in the connector width direction and extending in the front-rear direction. The outer side surface of the cable side wall 15 has a stepped shape with respect to the front half and is immersed, and is located further inside the connector width direction than the front half. As is clear from FIG. 2, a surface portion formed at a boundary between the front half portion and the rear half portion is formed at a right angle in the front-rear direction, and is formed in a connector fitting state for the substrate connector 2 to be described later. The locking surface 15A that is locked toward the rear by the locking surface 31A. The front half is located near the front end of the outer side of the front half Further, a front locking convex portion 15B projecting from the outer side surface is formed at an intermediate position in the vertical direction. The front locking convex portion 15B is in a state in which the connector is fitted, and the front locking concave portion 31B of the substrate connector 2 to be described later can be locked upward.

The lower surface of the front locking convex portion 15B is an inclined surface that is inclined upward toward the outer side in the connector width direction, and serves as a guiding surface for guiding the front locking convex portion 15B toward the front locking concave portion 31B in the connector fitting process. Come to play the function. Further, the upper surface of the front locking convex portion 15B is an inclined surface that is inclined downward toward the outer side in the connector width direction, and guides the front locking convex portion 15B toward the front locking concave portion 31B as the connector is pulled out. The guiding surface is functional.

The operation unit 12 projects forward from the upper portion of the front wall 16 of the main body portion 11 and extends over substantially the entire area of the connector width direction. As will be described later, when the connector is pulled out, the cable connector 1 in the connector fitting state is lifted upward by the operation portion 12, and the tilting posture is performed to perform the pulling operation.

The elastic arm portion 13 is located near the rear end position of the cable side wall 15 and extends from the upper portion of the outer side surface of the cable side wall 15 toward the outer side in the connector width direction, and the front end portion is bent downward, the front end portion being at the connector width. Elastic displacement in the direction. The lower end position of the inner side surface of the elastic arm portion 13 (opposite the outer side surface of the cable side wall 15) is formed to protrude rearward in the connector width direction inner side (toward the outer side surface of the cable side wall 15). The convex portion 13A is locked (see FIGS. 3(A) to (C)).

FIG. 3(A) is an enlarged view showing the electrical connector assembly of FIG. 1. The front end of the elastic wrist portion 13 of the electrical connector 1 of the cable is an oblique view from the outside. In the same figure, the rear locking convex portion 13A provided on the inner side surface of the front end portion of the elastic arm portion 13 is shown by a broken line. Fig. 3(B) is a perspective view of the elastic arm portion 13 of Fig. 3(A) viewed from the inner side surface side. 3(C) is a perspective view showing only the locking concave portion 13A provided in the rear side of the elastic arm portion 13 of FIG. 3(A) and facing the locking concave portion of the substrate-side connector 2 in the connector width direction.

As shown in FIGS. 3(A) to 3(C), the rear locking convex portion 13A protrudes from the base portion integrally coupled to the inner side surface of the elastic arm portion 13 to have a front end toward the cable side wall 15. In addition, the rear locking convex portion 13A is formed in a tapered shape in which the size in the vertical direction when viewed in the front-rear direction is reduced toward the front end in the connector width direction of the protruding direction, and the whole is inclined upward and extended (see also Figure 4 (A)).

Here, the shape of each of the faces 13A-1 to 5 of the rear locking convex portion 13A will be described with reference to Fig. 3(C). In Fig. 3(C), the surface 13A-0 to which the oblique line is applied is the base surface which becomes the base portion on the inner side surface of the elastic arm portion 13. The rear locking convex portion 13A is a hexahedron when the base surface 13A-0 is included. The upper surface 13A-1 of the rear locking convex portion 13A is formed as a convex curved surface that gradually faces downward toward the front (the lower left side of FIG. 3(C)), and the protruding direction of the convex portion 13A is locked at the rear side, with the orientation The front end (the upper left of Fig. 3(C)) is inclined upward (see also Fig. 4(A)). Further, the lower surface 13A-2 is formed as a flat surface which is inclined upward toward the front end, and the inclination angle thereof is formed larger than the upper surface 13A-1 (see also FIG. 4(A)). Moreover, the front end face 13A-3 is formed into a triangular flat shape. The rear end surface 13A-4 is formed into a curved surface that is convexly curved toward the rear. Further, the front end surface 13A-5 is formed by a flat surface that is curved at the upper side. In the present embodiment, the rear locking convex portion 13A also includes the base surface 13A-0 and is formed by a hexahedron. However, instead of this configuration, the outer surface of the rear locking convex portion may be adjacent to each other. The boundary positions are curved and connected to each other.

Referring back to Figures 1 and 2, the substrate connector 2 will be described. The board connector 2 includes a board side case 30 made of an electrically insulating material, a board side terminal 40 held by the board side case 30, and a fixing fastener 50. The substrate-side housing 30 includes two substrate-side side walls 31 that extend in the front-rear direction on the surfaces facing each other in the connector width direction, and extend in the connector width direction and connect the front ends of the substrate-side side walls 31 to each other. The front wall 32; and a bottom wall 33 extending in the width direction of the connector and connecting the lower ends of the front half portions of the substrate side side walls 31 to each other. A space formed between the two substrate-side side walls 31 is formed as a receiving portion 34 for receiving the body portion 11 of the cable-side housing 10 from above.

As clearly shown in FIGS. 1 and 2, the inner side surface of the substrate-side side wall 31 (the surface on which the receiving portion 34 is formed) is in the connector width direction, and the front half portion is located outside the rear half portion, as shown in FIG. A stepped portion located at a boundary between the front half portion and the rear half portion and having a right angle in the front-rear direction is formed in a state in which the connector is fitted, and the locking surface 15A of the cable connector 1 can be locked to the rear. The card surface 31A is locked.

The inner side surface of the board-side side wall 31 is formed in an edge portion which is a boundary between the upper end surface and the inner side surface of the front half and the rear half, and is formed with a front inclined surface which is inclined toward the inner side in the connector width direction as it goes downward. 31C, rear inclined surface 31D (also collectively referred to as inclined surfaces 31C, 31D). The inclined faces 31C and 31D are guided by the connector fitting process, and the main body portion 11 of the cable connector 1 is guided in the connector width direction toward the receiving portion 34 of the substrate connector 2. Further, the inclined surface of the front inclined surface 31C close to the front end position functions as a front locking projection surface 31C-1 for guiding the front locking convex portion 15B of the cable connector 1 to the front locking concave portion to be described later.

The inner side surface of the substrate-side side wall 31 is located below the front lock guide surface 31C-1, and a front-side locking recess 31B is formed from the inner side surface. The front locking recess 31B is in the connector fitting state, and receives the front locking convex portion 15B of the cable connector 1, and the upper locking inner wall facing the front locking convex portion 15B is locked upward by the upper inner wall of the front locking concave portion 31B.

On the outer side surface of the substrate-side side wall 31, an edge portion which becomes a boundary between the upper end surface and the outer side surface at a position close to the rear end portion corresponding to the rear locking convex portion 13A of the cable connector 1 is formed to face downward The rear locking guide surface 31E is inclined to the outside in the width direction of the connector. The rear lock guide surface 31E guides the rear lock convex portion 13A toward the outer side in the connector width direction toward a rear lock concave portion to be described later.

Further, the outer side surface of the substrate-side side wall 31 is located below the rear lock guide surface 31E, and a recessed portion 31F is formed so as to be vacated from the outer side surface and opened downward. In the connector fitting state, the rear locking recess 31F receives the rear locking convex portion 13A of the cable connector 1, and the upper locking inner portion 31F-1 of the rear locking recess 31F locks the rear locking convex portion 13A upward. The aforementioned upper inner wall surface 31F-1 is formed as a When viewed in the width direction of the connector, the concave curved surface is curved downward toward the front side corresponding to the upper surface 13A-1 of the rear locking convex portion 13A (see FIG. 6(B)). Moreover, as shown in FIG. 6(C), the upper inner wall surface 31F-1 is inclined upward toward the inner side in the connector width direction (the right side in FIG. 6(C)) when viewed in the front-rear direction. Further, as shown in FIG. 1, an inclined surface 31F-2 that is inclined to reduce the depth of the rear locking recess 31F toward the rear is formed on the inner edge of the rear side of the rear lock recess 31F.

In the present embodiment, as shown in Fig. 6(C), the upper surface 13A-1 of the rear locking convex portion 13A of the cable connector 1 and the upper inner wall surface 31F-1 of the rear locking concave portion 31F of the substrate connector 2 are respectively The inclination angle of the inner side surface of the elastic arm portion 13 and the bottom wall surface of the rear locking recess portion 31F (the surface at right angles to the connector width direction) is an acute angle, so that the mutual locking strength is large. Further, the upper surface of the front locking convex portion 15B of the cable connector 1 is formed as an inclined surface for guiding the front locking convex portion 15B toward the front locking concave portion 31B in the connector pulling process as described above. Therefore, the locking strength of the front locking convex portion 15B and the front locking concave portion 31B is smaller than the locking strength of the rear locking convex portion 13A and the rear locking concave portion 31F described above. That is, the locking functions of the cable connector 1 and the substrate connector 2 are mainly performed by the rear locking convex portion 13A and the rear locking concave portion 31F, and the locking function of the front locking convex portion 15B and the front locking concave portion 31B is auxiliary.

The substrate-side terminal 40 is formed by punching a metal plate, as shown in FIGS. 1 and 2, at a right angle to the width of the board facing the connector. The state is formed on the front wall 32 and the bottom wall 33 of the substrate-side housing 30 by an integral mold, and is arranged and held in the connector width direction at the position near the front end of the substrate-side housing 30. The substrate-side terminal 40 has a quadrangular plate-shaped corresponding contact portion 41 rising from the bottom wall 33 in the receiving portion 34 of the substrate-side housing 30, and a connecting portion 42 extending forward from the lower portion of the corresponding contact portion 41. (Refer to Figure 1). The corresponding contact portion 41 is brought into contact with the contact portion 24 by a contact pressure on both plate faces by a pair of contact portions 24 that are pressed against the cable-side terminal 20 (see FIG. 5(A)). As shown in FIG. 1, the connection portion 42 is exposed downward from the bottom wall 33. The lower edge of the connection portion 42 is soldered to a corresponding circuit portion (not shown) of the circuit board and electrically connected to the corresponding circuit portion.

The fixing fastener 50 is formed by punching a metal plate. As shown in FIG. 2, an integral mold is formed and held on the side wall 31 of the substrate at a position close to the rear end of the substrate side wall 31 of the substrate-side housing 30. Lower part. The fixing fastener 50 has a fixing portion 51 that extends downward from the lower surface of the substrate-side side wall 31 and that is bent rearward. The fixing portion 51 is soldered to a corresponding portion (not shown) of the circuit board and fixed to the circuit board.

Next, the fitting operation and the pulling operation of the cable connector 1 and the board connector 2 will be described. First, the fitting operation will be described with reference to Figs. 1 to 6 . Here, FIG. 4 is a rear view of the electrical connector assembly viewed from the rear side, (A) showing the state before the connector is fitted, and (B) showing the state after the connector is fitted. Figure 5 is a cross-sectional view of the electrical connector assembly in a state in which the connector is fitted, (A) is a longitudinal section showing a face at right angles to the fitting direction of the connector, and (B) is a view showing the width direction of the connector. The longitudinal section of the face at right angles, (C) is a right angle to the front and rear direction The longitudinal section of the face. Fig. 6 is an enlarged view showing a cross section of the locking portion of the rear locking convex portion 13A and the rear locking concave portion 31F shown in Fig. 5, and Figs. 6(A) to (C) are enlarged views of Fig. 5(A) to ( respectively). The aforementioned locking portion of C).

First, when the cable connector 1 is formed, the front end side portion of the plurality of cables C is attached to the cable side terminal 20, and the cable side terminal 20 is inserted into the terminal hole 14 of the cable side casing 10 from the rear, so that The cable side terminal 20 is held by the cable side housing 10. As a result, a plurality of cables C are extended rearward from the cable-side housing 10, and the cable connector 1 is obtained. Further, the board connector 2 is placed on the mounting surface of the circuit board, and the board side terminal 40 and the fixing fastener 50 are respectively soldered to the corresponding portions on the mounting surface.

Next, when the cable connector 1 is mated to the board connector 2, as shown in Figs. 1, 2, and 4(A), the cable connector 1 is formed in a cable extending direction in parallel with respect to the circuit board. The state of the posture is placed above the substrate connector 2. Then, the cable connector 1 is pressed downward in the connector fitting direction, that is, downward, and is moved downward. As shown in FIG. 4(B), the main body portion 11 of the cable-side housing 10 is housed in the substrate-side housing 30. In the receiving portion 34, the connector is fitted.

In the connector fitting state, the corresponding contact portion 41 of the substrate-side terminal 40 of the substrate connector 2 enters from the bottom to one of the cable-side terminals 20 of the cable connector 1 and the contact portions 24 are mutually connected by the two contact portions. The pinch pressure corresponds to the plate surface of the contact portion 41 (see Fig. 4(A)). As a result, the contact portion 24 and the corresponding contact portion 41 are in contact with each other in contact pressure so that the end The sub-electrical connections are made to each other.

Further, in the state in which the connector is fitted, the both side portions of the main body portion 11 of the cable connector 1 abut against the inclined surfaces 31C and 31D of the substrate side wall 31 of the substrate connector 2 from above (refer to the figure). 4(A)), the body portion 11 of the cable-side housing 10 is guided toward the receiving portion 34 in the connector width direction. Moreover, at this time, the front locking convex portion 15B abuts against the front locking guide surface 31C-1 from above, and guides the front locking concave portion 31B (see FIG. 1) in the connector width direction. Then, when the cable connector 1 is further pushed downward, the front locking convex portion 15B passes over the front locking guide surface 31C-1 and reaches the front locking concave portion 31B, and becomes a pair in the connector fitting state. The upper inner wall surface of the front locking recess 31B is locked upward.

In addition, the elastic arm portion 13 of the cable connector 1 is locked to the rear side of the substrate side wall 31 of the substrate connector 2 by the rear locking convex portion 13A, and the elastic arm portion 13 faces the connector. Elastic displacement on the outer side in the width direction. When the cable connector 1 is further pushed downward, the rear locking convex portion 13A passes over the rear locking guide surface 31E and reaches the rear locking concave portion 31F. At this time, the elastic arm portion 13 is released from the elastic displacement state and returned in the direction of decreasing the amount of elastic displacement, as shown in FIGS. 5(B) and (C) and FIGS. 6(B) and (C). In the fitted state, the rear locking convex portion 13A is in an upwardly lockable state with respect to the upper inner wall surface 31F-1 of the rear locking concave portion 31F.

Further, in the connector fitting state, as shown in Fig. 6(A), the rear end surface 13A-4 of the rear locking convex portion 13A and the rear locking concave portion 31F The inclined surface 31F-2 is opposite to the surface.

In the state in which the connector is fitted, for example, the cable C is lifted up or the like, and the cable connector 1 is moved upward at a right angle to the mounting surface of the circuit board, and the front locking projection 15B and the rear are actuated. The lock projections 13A are also locked to the upper inner wall surface of the front lock recess 31B and the upper inner wall surface 31F-1 of the rear lock recess 31F, respectively. As a result, further movement of the cable connector 1 is restricted, and the cable connector 1 is prevented from being inadvertently detached.

Further, in the connector fitting state, as shown in FIG. 5(A), the locking surface 15A of the cable side wall 15 of the cable connector 1 is connected to the substrate in the front-rear direction (the horizontal direction in FIG. 5(A)). The opposite side of the substrate-side side wall 31 of the device 2 on the surface to be locked 31A is located at a position that is lockable toward the rear. Therefore, even if, for example, the cable is accidentally pulled rearward or the like in the connector fitting state, the cable connector 1 can be moved to the rear by the external force, and the locking surface 15A can be locked. Further, the cable connector 1 is restricted from moving by the locking surface 31A to prevent inadvertent detachment of the cable connector 1.

As described above, in the present embodiment, the rear locking convex portion 13A of the cable connector 1 is formed on the elastic arm portion 13, and the rear locking convex portion 13A abuts against the substrate of the substrate connector 2 during the connector fitting process. The side wall 31 locks the guide surface 31E rearward and elastically displaces the elastic arm portion 13 toward the outer side in the connector width direction. Therefore, the connector 1 can be pressed downward by the connector 1 in a lateral posture. Chimerism. Therefore, it is not necessary to make the cable connector 1 an inclined posture that is difficult to handle. The connector can be easily engaged with the connector. Further, since the elastic arm portion 13 is elastically displaced during the fitting process of the connector, no unreasonable external force acts on the two connectors, and the two connectors can be prevented from being damaged.

Next, the connector pull-out operation will be described based on Fig. 7 . Figure 7 (A) is a cross-sectional view of the electrical connector assembly in the connector pull-out process, showing a cross-sectional view at right angles to the connector width direction, and Figure 7 (B) is the rear lock of Figure 7 (A) An enlarged view of the locking portion of the convex portion 13A and the rear locking concave portion 31F.

When the cable connector 1 in the connector fitting state is pulled out from the board connector 2, the finger is hooked on the operation portion 12 of the cable connector 1 and lifted up, as shown in Fig. 7 (A). As shown in the figure, the cable connector 1 is in an inclined posture in which the front end is located at a position higher than the rear end. As described above, the locking function of locking the front locking convex portion 15B of the cable connector 1 to the front locking concave portion 31B of the substrate connector 2 is auxiliary. Therefore, the locking state of the front locking convex portion 15B and the front locking concave portion 31B can be released without requiring a large operating force, and the cable connector 1 can be tilted.

In addition, the rear locking convex portion 13A of the cable connector 1 is inclined rearward in the direction in which the connector is fitted, and is connected in a direction separated from the circuit board (not shown). The direction in which the device is pulled out (obliquely rearward) moves. Then, the rear locking convex portion 13A rear end surface 13A-4 (see FIG. 6(A)) is slid while the inclined surface 31F-2 of the rear locking concave portion 31F is slid. As a result, the elastic wrist portion 13 is elastically displaced toward the outer side in the width direction of the connector to release the rear lock. The lockable state of the upper inner wall surface 31F-1 of the fixed convex portion 13A and the rear lock concave portion 31F allows the rear lock convex portion 13A to further move in the direction in which the connector is pulled out. Then, when the cable connector 1 is lifted in the connector pull-out direction, the rear lock projection 13A is completely pulled out from the rear lock recess 31F, and the connector pull-out operation is completed.

As described above, in the present embodiment, the inclined surface 31F-2 is provided in the rear locking recess 31F of the board connector 2, and the elastic arm portion 13 can be elastically displaced as described above during the connector pulling out. Therefore, the rear locking convex portion 13A can easily move out of the connector pulling direction and out of the rear locking concave portion 31F beyond the inclined surface 31F-2, so that the cable electrical connector 1 can be easily pulled out. Further, the inclination angle of each of the rear end surface 13A-4 of the rear locking convex portion 13A and the inclined surface 31F-2 of the rear locking concave portion 31F can be appropriately set in accordance with the inclination angle of the cable connector 1. For example, by setting the inclination angles of the rear end surface 13A-4 and the inclined surface 31F-2 to be large, when the connector is pulled out, even if the inclination angle of the tilting posture of the cable connector 1 is small, the rear locking convexity is small. The portion 13A can also pass over the inclined surface 31F-2, so that the cable connector 1 can be pulled out.

<Second embodiment>

In the first embodiment, the rear locking convex portion 13A of the cable connector 1 is provided on the inner side surface of the elastic arm portion 13, and the rear locking concave portion 31F of the substrate connector 2 is provided on the outer side surface of the substrate side side wall 31. The embodiment is characterized in that the rear locking protrusion is provided on the outer side of the elastic wrist, and the rear lock The fixed recess is different from the first embodiment in that it is provided on the inner side surface of the side wall of the substrate.

Hereinafter, the present embodiment will be described with reference to Fig. 8 . In the present embodiment, the installation position of the rear locking convex portion and the rear locking concave portion and the shape of the substrate side side wall are mainly different from those of the first embodiment. Further, in the present embodiment, the basic configuration in which the front end portion of the elastic arm portion provided with the rear lock portion is elastically displaced in the connector width direction to lock and release is the same as in the first embodiment. Therefore, in the present embodiment, the differences from the first embodiment will be mainly described, and the same reference numerals will be given to the symbols in the first embodiment in the same portions as in the first embodiment, and the description thereof will be omitted. Fig. 8 is a perspective view of the electrical connector assembly of the embodiment taken from the front side, showing a state before the connector is fitted.

As described above, in the present embodiment, the rear locking convex portion 113A of the cable connector 101 is formed on the outer side surface of the elastic arm portion 113 and protrudes outward in the connector width direction. The shape of the rear locking convex portion 113A itself is the same as that of the rear locking convex portion 13A of the first embodiment, and is different only in the outward direction of the opposite direction to the first embodiment.

In the present embodiment, the outer surface of the substrate-side side wall 131 of the substrate connector 102 is located further outward than the front half and the rear half in the connector width direction. Further, the inner side surface of the substrate-side side wall 131 is in the connector width direction, and the rear end side portion, that is, the rear-locking concave portion 131F is located further outward than the other portions, and the rear end side portions are spaced apart from each other by the first embodiment. Large form. Thereby, in the connector fitting state, In addition to the main body portion 111 of the cable connector 101, the elastic arm portion 113 is also housed in the receiving portion 134 of the substrate connector 102.

In the present embodiment, the rear locking recess 131F of the board connector 102 is formed on the inner side surface of the rear end side portion of the board side wall 131. The shape of the rear lock recess 131F itself is the same as the shape of the rear lock recess 31F of the first embodiment. Further, on the inner side surface of the rear end side portion, at the upper end side, that is, at a position above the rear lock recess 131F, a rear lock that is inclined toward the inner side in the connector width direction from the upper end of the rear end side portion is formed. Guide surface 131E.

The connector fitting operation and the connector pulling operation of the present embodiment are the same as those of the first embodiment except that the direction in which the elastic arm portion 113 is elastically displaced is the inner side in the connector width direction.

<Third embodiment>

In the first and second embodiments, the elastic wrist portions 13, 113 of the cable connectors 1, 101 are elastically displaced in the connector width direction by the connector pulling process, so that the rear locking projections 13A, 113A are from the substrate. The rear locking recesses 31F, 131F of the connectors 2, 102 are pulled out. On the other hand, in the present embodiment, although the connector is elastically displaced when the connector is fitted, when the connector is pulled out, the elastic wrist portion of the cable connector is not elastically displaced and the rear locking projection is from the substrate connector. This is different from the first and second embodiments in that the rear locking recess is pulled out.

Hereinafter, the present embodiment will be described with reference to Figs. 9 and 10 . In this embodiment, the rear locking recess of the substrate connector is opened upward, which is The one-point structure is greatly different from the first and second embodiments in which the upper side of the rear locking recess is closed by the upper inner wall surface. In the present embodiment, the same reference numerals are given to the symbols in the first embodiment, and the description thereof will be omitted.

Fig. 9 is a rear elevational view of the electrical connector assembly of the embodiment as seen from the rear, showing a state before the connector is fitted. Fig. 10 is a side view of the electrical connector assembly of Fig. 9 as seen in the width direction of the connector, (A) showing the state before the connector is fitted, and (B) showing the state after the connector is fitted, (C) To show the status of the connector unplugging process. Further, in Fig. 10, the portion hidden by the elastic arm portion 213 is shown by a broken line.

As shown in Fig. 10(A), in the present embodiment, the front locking convex portion 215B is provided on the outer side surface of the cable side wall 215 of the cable side casing 210 at a position close to the lower end edge, and can be locked to the side case formed on the substrate. A concave portion (not shown) is locked in front of the inner side surface of the substrate side wall 231 of the body 230. The elastic arm portion 213 is located closer to the rear end portion of the outer side surface of the cable side wall 215, and extends from the upper portion of the outer side surface toward the outer side in the connector width direction as shown in FIG. 9, and then extends at a right angle to the lower side. The rear locking convex portion 213A protrudes from the lower side of the inner side surface of the elastic arm portion 213 toward the inner side in the connector width direction.

As shown in FIG. 10, the rear locking recessed portion 231F of the substrate connector 202 is formed at a position close to the rear end of the outer side surface of the substrate-side side wall 231 of the substrate-side housing 230, and is formed as a groove portion that is immersed from the outer side surface. The rear locking recess 231F is directed rearward as it goes upward, in other words, toward the connection The pull-out direction extends obliquely and is not only open below but also open above. A protruding portion 231F-1 that protrudes rearward from the upper end position of the front inner edge is formed on the front inner edge of the rear locking recess 231F. The lower surface of the protruding portion 231F-1 functions as a locking surface 231F-1A at a position where the rear locking convex portion 213A of the cable connector 201 can be locked in the connector fitting state, as will be described later. .

The width dimension of the rear locking recess 231F (the inner dimension of the surface parallel to the surface of the substrate side wall 231) is set to the minimum dimension P (see FIG. 10(A)) between the protruding portion 231F-1 and the trailing edge. The size at which the rear locking convex portion 231A passes in the direction in which the connector is pulled out can be allowed during the pulling out process (see FIG. 10(C)).

In addition, the inclined surface which is inclined downward toward the outer side in the connector width direction is formed in the edge portion which is the boundary between the upper end surface and the outer surface of the substrate side wall 231, and is formed at the front edge from the front end to the rear locking recess 231F. The whole scope. The inclined surface portion is formed to function as a rear locking guide surface 231E for guiding the rear locking convex portion 213A toward the rear locking concave portion 231F in a portion corresponding to the range of the protruding portion 231F-1.

Next, the connector fitting operation and the connector pulling operation of the present embodiment will be described with reference to Figs. 10(A) to (C). When the connector is fitted, as shown in FIG. 10(A), the cable connector 201 is brought to the substrate connector 202 in a state in which the connector 201 is maintained in the lateral posture from above (see the arrow of FIG. 10(A)). In the connector fitting, the front end side portion (FIG. 10A) in the front end side portion (FIG. 10A) of the rear locking convex portion 213A abuts The rear locking guide surface 231E elastically displaces the elastic arm portion 213 toward the outer side in the connector width direction. When the cable connector 201 is further pushed downward, the front end side portion of the rear locking convex portion 213A passes over the rear locking guide surface 231E and the protruding portion 231F-1 and reaches the rear locking concave portion 231F. At this time, the elastic arm portion 213 is released from the elastic displacement state and returns to the direction in which the amount of elastic displacement is reduced, and the distal end side portion of the rear locking convex portion 213A faces upward and the locking surface 231F-1A of the protruding portion 231F-1. The state of the card can be locked.

In the state in which the connector is fitted, for example, when the cable C is accidentally lifted up or the like, and the cable connector 201 is moved upward by an external force, the rear locking convex portion 213A and the locking surface of the rear locking concave portion 231F are engaged. 231F-1A is stuck. As a result, further movement of the cable connector 201 is restricted, and the cable connector 201 is prevented from being inadvertently detached.

When the connector is pulled out, the finger is hooked on the operation portion 212 of the cable connector 201 and lifted up, and as shown in Fig. 10(C), the cable connector 201 is tilted. The rear locking convex portion 213A of the cable connector 201 is in the inclined posture described above, and is brought between the protruding portion 231F-1 of the rear locking concave portion 231F and the trailing edge as shown by a broken line in FIG. 10(C), and is released. The lockable state of the locking surface 231F-1A of the protruding portion 231F-1. Then, when the cable connector 201 is further moved in the pull-out direction, the rear lock convex portion 213A does not interfere with the lock surface 231F-1A, and can be detached from the rear lock concave portion 231F, so that it is easy to pull out. The cable connector 201 is taken out.

In the present embodiment, the rear locking convex portion is provided on the inner side surface of the elastic arm portion, and the rear locking concave portion is provided on the outer side surface of the side wall of the substrate side. However, the position of the rear locking convex portion and the rear locking concave portion is not limited thereto, and for example, The rear locking convex portion is provided on the outer side surface of the elastic wrist portion, and the rear locking concave portion is provided on the inner side surface of the side wall of the substrate.

In the first to third embodiments, the elastic arm portion of the cable-side housing extends from the outer side surface of the cable side wall. However, the extended position is not limited thereto, and may be from the both side portions of the main body portion, for example, elastic. The wrist extends from the upper side of the upper portion of the body portion.

1‧‧‧Connector for cable

2‧‧‧Substrate electrical connector

10‧‧‧ Cable side housing

11‧‧‧ body part (housing)

12‧‧‧Operation Department

13‧‧‧Flexible wrist

13A‧‧‧ Rear locking projection

13A-1‧‧‧

13A-2‧‧‧

13A-3‧‧‧

13A-4‧‧‧

15‧‧‧ Cable side wall

15B‧‧‧ front locking projection

30‧‧‧Side side shell

31‧‧‧Side side wall

31E‧‧‧ Rear locking guide surface

31F‧‧‧ Rear locking recess

31F-1‧‧‧ upper inner wall

31F-2‧‧‧ sloped surface

40‧‧‧Base side terminal

42‧‧‧Connecting Department

50‧‧‧Fixed fasteners

51‧‧‧ Fixed Department

Claims (5)

An electrical connector assembly system includes: an electrical connector for a circuit board disposed on a mounting surface of a circuit board; and a fitting direction connected to the circuit from a top in a fitting direction at a right angle to the mounting surface An electrical connector for a cable for an electrical connector for a substrate, characterized in that the electrical connector for a cable has a cable-side housing that is held in parallel with the mounting surface in a state in which the connector is fitted. The cable front end side portion of the cable extending toward the rear with the electrical connector, the cable side housing having: a housing body having two cable side side walls extending in the front-rear direction; and a pair of the side walls from the cable side An elastic wrist portion extending in a direction of the connector width direction of the housing body and elastically displaceable toward the connector width direction, the elastic wrist portion being formed with a protrusion toward the connector width direction The above-mentioned circuit board electrical connector has a substrate-side housing provided with two substrate-side side walls extending in the front-rear direction, The board-side housing is a receiving portion formed between the side walls of the substrate, and is capable of receiving at least the housing body of the electrical connector for the cable, the side wall of the substrate being corresponding to the locking projection of the electrical connector for the cable. A locking recess portion that is immersed from a side surface of the side wall of the substrate is formed at a position, and the connector for the cable is maintained in a state in which the cable is in a lateral posture parallel to the circuit board in the cable extending direction, and is carried from above. In the electrical connector for a circuit board, the locking projection abuts against a side surface of the side wall of the substrate, and the elastic arm is generally elastically displaced. Moving downward, when the connector fitting is completed, the locking convex portion reaches the locking concave portion, and the elastic arm portion reduces the amount of elastic displacement, so that the locking convex portion is locked with the edge of the locking concave portion. The electrical connector for the cable is restricted from moving upward. When the connector is pulled out, the electrical connector for the cable is released by the tilting posture of the front end of the electrical connector of the cable at a position higher than the rear end. The lockable state of the locking projection and the edge of the locking recess allows the cable electrical connector to move in a pulling direction that is separated from the circuit board by tilting rearward from the fitting direction. The electrical connector assembly according to the first aspect of the invention, wherein the electrical connector for the substrate is formed with a locking recess formed on the outer side of the side wall of the substrate, and the electrical connector for the cable is located when the connector is fitted. The locking convex portion is formed on a surface of the surface of the elastic arm that faces the outer surface of the side wall of the substrate, except for the receiving portion of the electrical connector for the substrate. The electrical connector assembly according to claim 1, wherein the electrical connector for the substrate is formed in the inner side surface of the side wall of the substrate, and the electrical connector for the cable is located in the state in which the connector is fitted. In the receiving portion of the electrical connector for the substrate, the locking convex portion is formed on a surface of the surface of the elastic wrist that faces the inner side surface of the side wall of the substrate. The electrical connector assembly according to any one of claims 1 to 3, wherein the locking recess of the electrical connector for the substrate forms an inclined surface at an inner edge of the rear side of the locking recess, the inclined surface being inclined The depth of the locking recess is reduced toward the rear, and in the connector fitting state, the locking convex portion of the electrical connector for cable disposed in the lateral posture is restricted upward by the upper inner edge of the locking recess, and is connected In the device pulling-out process, the elastic portion is elastically displaced by the locking convex portion of the cable electrical connector in the inclined posture by the inclined surface, and the locking convex portion is allowed to move in the pulling-out direction. The electrical connector assembly according to any one of claims 1 to 3, wherein the locking recess of the electrical connector for the substrate is immersed from the side of the side wall of the substrate when viewed in the width direction of the connector. The front inner edge of the locking recess is open to the rear and open upward, and the front inner edge of the locking recess is located at an upper end position of the front inner edge, and has a protruding portion that protrudes rearward, and the protruding portion is formed in the connector fitting state. The locking projection of the electrical connector for the cable in the lateral position is restricted from moving upward, and the locking projection of the electrical connector for the cable in the inclined posture is allowed to move in the pulling-out direction during the connector pulling process.