JPH08130052A - Socket for rectangular connector - Google Patents

Abstract

PURPOSE: To regulate a position of a printed board side connection terminal easily and securely by regulating a position of a terminal of resilient conductor fixed on a main housing and bent for a specified angle, and inserting a connector housing into the main housing for composing a socket. CONSTITUTION: Protrusions 19 are provided on an upper surface and a lower surface of a connector housing 2. The protrusion 19 expands a back part of a cylindrical part 8 when the housing 2 is inserted into the cylindrical part 8 of a main housing 1, so the housing 2 is engaged with a groove 10 in the housing 1. An inner shield case 3 is integrally formed of a metal plate in a rectangular cylinder form. Grounding terminals 18, 18 of the case 3 in which terminals 12, 13 are disposed are inserted through entrances of slits 17, 17 of the housing 2, and as the case 3 is pushed backward, the terminals 18, 18 are guided by the slits 17, 17 to slide backward, so the case 3 is smoothly and easily contained inside the housing 2. An upper plate, a lower plate, and a right and a left side plates are engaged and locked by a stopper part 22g.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a socket for a rectangular connector, and more particularly, to enable the position of printed circuit board terminals to be regulated easily and accurately and to assemble the arrangement of a plurality of terminals. It relates to a socket of a rectangular connector that can be easily distinguished at times.

[0002]

2. Description of the Related Art Conventionally, in a socket of a rectangular connector, a rear end of a plurality of elongated contact pieces (hereinafter referred to as terminals) arranged in parallel for contacting a contact piece of a plug is aligned with a hole of a printed circuit board. It is known that the terminal which is bent at 90 ° in advance is fixed to the housing, or after the terminal is fixed to the housing and the rear part thereof is bent at 90 ° by using an adjusting jig.

When the terminal is bent 90 ° as described above, when the entire terminal is covered with a shield case for shielding as disclosed in Japanese Utility Model Laid-Open No. 3-79175 "Connector", the shield case is made smaller. Therefore, there is an advantage that the socket can be downsized.

[0004]

However, in the above-described conventional rectangular connector socket, in the method of fixing the terminals bent in advance by 90 ° to the housing, the tips of the individual terminals are not uniform due to deformation or the like. There was a problem in assembly that the positioning accuracy was poor and the terminal could not be easily inserted into the printed circuit board hole.

Further, in the method of fixing the terminal to the housing and then bending it with the adjusting jig, the jig operation is troublesome, and when it is worn, the positional accuracy of the terminal deteriorates, which is a manufacturing factor. There was a problem.

Further, when assembling the divided housings, the plug contacts are housed in the housing incorporating the terminals, and the disposition state of the plug contacts cannot be visually observed at the time of assembly, so that a defective defective product cannot be found. There was a problem called leprosy.

Therefore, according to the present invention, at the time of assembling the socket, the position of the terminal on the printed circuit board side can be simply and accurately regulated in a short time without using a jig, and the position-regulated terminal can be controlled. There is a problem in making the arrangement state visible, and an object thereof is to provide a small-sized rectangular connector socket having a large number of such terminals at low cost.

[0008]

In order to solve the above-mentioned problems, a socket of a rectangular connector according to the present invention comprises a housing provided with a slit for controlling a terminal position at a predetermined position formed in a rectangular tubular shape of an insulator. A socket formed of an elastic conductive wire bent at a predetermined angle, the elastic conductive wire being position-regulated by the terminal position-regulating slit and assembled in an aligned state.

Further, the housing is a first housing formed in an insulating rectangular tube shape, and a second housing formed in an insulating rectangular tube shape so as to be in contact with an inner surface of the first housing. The terminal of the elastic conductive wire fixed to the second housing and bent at an angle of 90 ° or more is guided by the slit for restricting the terminal position formed in the first housing to restrict the position. While assembling by inserting the second housing into the first housing; the first housing, the second housing inserted from the rear of the first housing, and the second housing. An insulating flat plate fixed to the second housing so as to protrude from the rear into a plug insertion space surrounded by the housing, and parallel to the surface of the insulating flat plate. A plurality of terminals arranged and drawn out to the outside of the rear portion of the second housing; and a slit for regulating the position of the terminal, which is provided in the first housing and engages with the rear end of each terminal, The terminal is bent at an angle of 90 ° or more before assembly, and during assembly, the second housing is guided by the slit while guiding the terminal.
Assembled by pushing in from the rear of the housing of the above; the terminal is formed by narrowing the width of the rear part of the elastic strip-shaped conductive contact piece; Fixing to the second housing; the terminal is a rectangular connector that is bent to 90 ° or more after being fixed to the second housing.

Further, the rectangular connector includes a first housing formed in an insulating rectangular tube shape, a second housing formed in a rectangular tube shape and inserted and fitted into the first housing, An insulating flat plate which is disposed at a predetermined position inside the second housing and is formed in a flat plate shape and provided with a terminal insertion groove for engaging a terminal on the upper surface and the lower surface thereof, and the first housing and the second housing. When the front end portion of the terminal insertion groove of the insulating flat plate portion is located rearward of the front end surface of the first housing and frontward of the front end surface of the second housing when fitted with the housing. is there.

[0011]

The socket of the rectangular connector having the above basic structure operates as follows. The socket accommodates the connection portion with the plug in the first and second double housings. After each housing is manufactured separately, the socket is assembled by housing the second housing in the first housing.

The terminal of the elastic conductive wire that contacts the plug is fixed to the second housing. This terminal is 9
Bend at an angle of 0 ° or more. This folding work is the second
It may be before or after fixing the terminal to the housing.

On the other hand, the first housing is provided with a terminal position regulating slit at a position corresponding to the terminal. Specifically, when the terminal is bent downward at the rear of the second housing, a slit is cut forward from the rear end of the lower plate of the first housing.

The socket is assembled by inserting the second housing into the first housing. At this time, the terminal and the terminal position regulating slit are naturally engaged with each other.

Therefore, when the second housing is inserted into the first housing while the terminal is guided by the terminal position regulating slit, the terminal is easily and accurately aligned and fixed at the end point of the slit by its elasticity.

More specifically, the first housing is formed in a cylindrical shape of an insulator, the second housing is formed in a box shape of an insulator, and a rectangular plug insertion surrounded by the second housing is inserted. Project the insulator flat plate from the rear of the space,
A plurality of terminals are arrayed and fixed in parallel with each other on the surface of this flat plate. In this case, the rear part of the terminal penetrates the rear part of the second housing and is exposed to the outside.

Therefore, when the terminal rear portion protruding from the second housing is engaged with the terminal position regulating slit of the first housing and the second housing is pushed into the first housing, the terminal is initially opened. It is guided by the slit at a bending angle of 90 ° or more and advances without resistance, but when the second housing further advances into the first housing,
The rear end of the terminal abuts the end of the slit and is stopped there.

However, since the movement of the second housing continues further, the terminal exhibits resistance due to its elasticity, but if this resistance is overcome and the second housing is pushed further, the portion before the bending point of the terminal is reached. Is the second
The housing moves forward with the housing, and the rear part from the bending point rotates about the end point of the slit as a fulcrum.

As a result, the angle at the bending point inevitably becomes smaller, and when the second housing is completely housed in the first housing, the bending angle of the terminal is completely 90 °. Finally, the second housing is fixed to the first housing by the stopper, and at this time, the tip of the terminal is aligned with the position of the hole of the printed circuit board.

As described above, since the terminal is engaged with the position regulating slit and is guided by the slit to move forward only by inserting the second housing into the first housing, Even if the corners of each of the terminals are not aligned before assembly, all terminals can be positioned in the holes of the printed circuit board with high accuracy after assembly simply by pushing in the second housing without any adjustment. become.

Each of the first housing, the second housing, and the terminal has a simple structure and can be easily manufactured at low cost. Further, since the assembling can be performed easily, reliably and in a short time as described above, the manufacturing process of the connector can be made efficient and the cost can be reduced.

The plug contact portion of the terminal is the second
With the structure projecting from the front end portion of the housing, it becomes possible to visually confirm the arrangement state of the terminals during assembly.

[0023]

EXAMPLE An example in which the socket of the rectangular connector according to the present invention is applied to a double shield connector will be described below.

In this embodiment, as shown in FIGS. 1, 2 and 3, a main housing 1 as the first housing and a connector as the second housing housed in the main housing 1 are provided. A housing 2, an inner shield case 3 made of a conductive plate housed in the connector housing 2, and a plug contact portion provided in the middle of a space for plug insertion surrounded by the inner shield case 3 so as to contact the plug. 4 and an outer shield case 5 formed of a conductive plate so as to cover the main housing 1. The respective configurations will be described in the order of [1] main housing 1 [2] connector housing 2 [3] inner shield case 3 [4] plug contact part 4 [5] outer shield case 5 [6] socket assembly. .

[1] Main Housing 1 The main housing 1 is formed in a connector assembly integrally molded with an insulator together with the housings of other connectors, and has a mouth portion 6 into which a plug is inserted from the front and an outer portion. It is composed of a frame portion 7 for locking the shield frame 5 and a rectangular tubular portion 8.

The mouth portion 6 is a plug insertion opening, the inner surface of which forms a plug insertion space together with the inner surface of the inner shield case 3 housed in the connector housing 2.

The frame portion 7 is adapted to lock the front edge of the outer shield case 5 which is placed on the outside of the tubular portion 8.

The tubular portion 8 is formed in a rectangular tubular shape, and its size is such that the connector housing 2 is smoothly slid from the rear side to be housed therein. A groove 10 is provided in the cylinder portion 8 in the front-rear direction. The groove 10 has a role of fixing the connector housing 2 by providing the tube portion 8 with some flexibility and engaging with a projection 19 of the connector housing 2 described later.

Further, as shown in FIGS. 4 and 5, a plurality of terminal position regulating slits 11, which are the features of the present invention, are provided at the rear edge of the lower plate 8a forming the tubular portion 8. This terminal position regulating slit 11 has deep slits 11a and shallow slits 11b having substantially the same width alternately arranged in a zigzag pattern. As will be described later, when the connector housing 2 is inserted into the main housing 1, the shallow slits are shallow. Slit 11b
Engages with the upper terminal 12 and the deep slit 11a engages with the lower terminal 13 so that the terminals in different directions are aligned in the same direction.

[2] Connector housing 2 As shown in FIGS. 1, 3 and 4, the connector housing 2 is formed in a rectangular cylindrical housing having one surface of the insulator opened, and its size is the main. It is shaped so that it can be slid and fitted into the inner surface of the tubular portion 8 of the housing 1. Inside it, the tip projects from the opening,
Further, the insulating plate 24 of the plug contact portion 4 arranged parallel to the longitudinal direction is integrally formed, and a through hole 14a for penetrating the upper terminal 12 and the lower terminal 13 of the plug contact portion 4 which will be described later is formed on the side opposite to the opening surface. 14b is provided, and the opening surface side is the front and the through hole 14
The a and 14b sides are the back. Incidentally, the plug contact portion 4
Will be described later.

Further, as shown in FIG. 3, slits 17, 17 having a predetermined length in the front-rear direction are provided between both ends of the lower plate 15 of the connector housing 2 and the left and right side plates 16. The slits 17, 17 are for guiding the ground terminals 18, 18 of the inner shield case 3 during assembly.

Further, as shown in FIGS. 1, 3 and 4,
Protrusions 19 are provided on the upper surface and the lower surface of the connector housing 2. When the connector housing 2 is inserted into the tubular portion 8 of the main housing 1, the projection 19 spreads out the rear portion of the tubular portion 8, and after the connector housing 2 is completely housed in the main housing 1, the groove of the main housing 1 is formed. 10 (see FIG. 5).

[3] Inner Shield Case 3 The inner shield case 3 is integrally molded in a rectangular tubular shape from a metal plate as shown in FIG. The size of the inner shield case 3 is formed so that it can be slid and inserted into the inner surface of the connector housing 2.

The inner shield case 3 has ground terminals 18, 18 at the lower rear ends of the left and right side plates. When inserting the inner shield case 3 into the connector housing 2, the ground terminals 18, 18 are inserted from the inlets of the slits 17, 17 of the connector housing 2 so that the inner shield case 3
Push backward to connect the ground terminals 18, 18 to the slit 1
The inner shield case 3 is smoothly and easily housed in the connector housing 2 by being guided by the sliding members 7 and 17 and sliding backward.

Further, the front ends of the upper plate and the lower plate of the inner shield case 3 are bent outward at right angles by widths corresponding to the thicknesses of the upper plate and the lower plate of the connector housing 2, respectively. To form. This collar part 2
When the connector housing 2 accommodating the inner shield case 3 is inserted into the main housing 1, 0 and 21 are sandwiched between the rear end of the mouth portion 6 of the main housing 1 and the front end of the connector housing 2, and the inner shield case 3 Fulfills the function of fixing.

As shown in FIG. 3, the upper shield plate, the lower shield plate, and the left and right side plates of the inner shield case 3 have contact pieces 22a, 22b, 2 which contact the ground portion of the inserted plug.
2c and 22d and half lock portions 22e and 22f are provided, and the joint surfaces of the upper plate, the lower plate, and the left and right side plates are engaged and locked by the stopper portion 22g.

Further, although not shown, the rear portion of the inner shield case 3 is narrowed from the top, bottom, left and right, leaving an opening of a minimum size for allowing the plug contact portion 4 to pass therethrough. Is improving.

[4] Plug Contact Part 4 Each of the plug contact parts 4 formed in the connector housing 2 is formed by arranging a plurality of elongated conductive contact pieces on a plane in parallel with each other, and connecting the plugs. The corresponding contact pieces are brought into contact with each other by inserting the pieces in the socket in the length direction (front-back direction).

The plug contact portion 4 is a flat insulating plate 24 integrally formed in the connector housing 2, and upper terminal through holes 14a and a lower portion which are provided at predetermined intervals on the upper and lower bases of the insulating plate 24. The terminal through hole 14b.

Upper terminal 12 and lower terminal 13
Are formed by strip-shaped and slightly elastic metal contacts, and the backs of the strips are made thin, or thin and elastic wires are connected to the backs of the strip-shaped contacts. The rear ends of so-called terminals 12 and 13 are formed in a zigzag shape. In this case, the upper terminal 12
Is longer than the lower terminal 13. This is so that when the upper terminal 12 and the lower terminal 13 are respectively bent, their rear ends are aligned.

Further, each terminal 12, 13 is provided with a cut-and-raised stopper 25. When the stopper 25 is inserted into the through holes 14a and 14b, the stopper 25 engages with the inner surface of the rear portion of the connector housing 2, so that the terminal 12,
It has a function of fixing 13.

On the other hand, the insulating plate 24 projects from the end 2a of the opening surface of the connector housing 2 as shown in FIGS. 1 and 3 and, when assembled, the opening 6 of the main housing 1.
It is formed to have a length that can be accommodated inside, and has a structure in which at least the tip portion of the terminal projects from the opening surface end portion 2 a of the connector housing 2.

As shown in FIGS. 1 and 2, the insulating plate 2
4 has a structure in which a plurality of parallel grooves 24a for fitting the upper terminal 12 and the lower terminal 13 are provided on the upper surface and the lower surface. An engaging portion 24b for engaging and locking the tip portions of the terminals 12 and 13 on the free end side of each groove 24a.
Is provided.

To assemble the plug contact portion 4 having such a structure, the upper terminal 12 and the lower terminal 13 are inserted into the through holes 14a and 14b and fitted into the grooves 24a on the upper and lower surfaces of the insulating plate 24, and The distal ends of the terminals 12 and 13 are inserted into the engaging portions 24b provided at the distal ends of the grooves 24a to be engaged and locked, and at the same time, the stoppers 25 prevent the terminals from coming off. Therefore, the terminals 12 and 13 mounted on the insulating plate 24 have a structure capable of preventing the terminals 12 and 13 from protruding or turning over from the groove 24a.

On the other hand, since the rear ends of the terminals 12 and 13 at the rear of the connector housing 2 are staggered, they are bent forward by an angle of 90 ° or more. For that purpose, it is optional to fix the terminals 12 and 13 which are bent at an angle of 90 ° or more in advance to the connector housing 2 as described above, or to fix the terminals 12 and 13 to the connector housing 2 and then to bend them. Also, it is not necessary for all the terminals 12 and 13 to be bent at an accurate angle.

[5] Outer Shield Case 5 The outer shield case 5 is a metal plate as shown in FIG. 5 so as to cover the upper surface and the left and right sides of the tubular portion 8 of the main housing 1 and the rear portions of the terminals 12 and 13. It is integrally molded into a shape. A protrusion 9 that engages with a hole of the main housing 1 is provided on the front portion of the upper plate of the outer shield case 5.

The left and right side plates of the outer shield case 5 are
A ground terminal 26 is provided at the lower end, and a cut-and-raised stopper 27 is provided at the center. When the outer shield case 5 is attached to the main housing 1, the ground terminal 26 slides while being guided by a slit provided in the lower plate of the main housing 1 to facilitate the lateral positioning of the outer shield case 5.

Further, the stopper 27 is the outer shield case 5
After being attached to the main housing 1, it has a function of fixing the outer shield case 5 so as not to move in the front-rear direction.

[6] Assembly of Socket The above-mentioned main housing 1, the connector housing 2 incorporating the plug contact portion 4, the inner shield case 3, and the outer shield case 5 are assembled into a socket as follows.

First, the terminals 12, 13 are inserted into the plug contact portion 4 through the rear through holes 14a, 14b,
Terminals 12 and 13 are provided. At this time, the terminals 12 and 13 are bent by 90 ° or more as shown by the dotted lines (12A and 13A) in FIG.

Next, as shown in FIG.
The inner shield case 3 in which 2 and 13 are arranged is connected to the ground terminal 1
8 is inserted while being guided by the slit 17. When the inner shield case 3 is completely housed in the connector housing 2, the flange portions 20 and 21 of the inner shield case 3 come into contact with the front edge of the connector housing 2.

Next, as shown in FIG. 4, the connector housing 2 accommodating the inner shield case 3 is guided from behind the tubular portion 8 of the main housing 1 and the ground terminal 18 is guided by the slit 8b provided in the main housing 1. Insert by doing. At this time, since the terminals 12 and 13 arranged on the insulating plate 24 are arranged so as to project from the opening surface of the connector housing 2, it is easy to visually check for missing items, defective arrangement, etc. It can be inserted into the main housing 1 after making a distinction.

As the connector housing 2 is inserted into the main housing 1, the terminals 12 and 13 come into contact with the end points of the deep slit 11a and the shallow slit 11b of the terminal position regulating slit 11. However, the connector housing 2 advances further with the contacted terminal portion stopped at that point.

Then, as shown in FIGS. 1 and 5, the rear ends of the terminals 12 and 13 are rotated while being in contact with the deep slits 11a and the shallow slits 11b of the terminal position regulating slit 11. . In that case, the resistance due to the elasticity of the terminals 12 and 13 is felt, but when the connector housing 2 is pushed against this, the terminals 12 and 13 are pressed.
The bending angle of 13 decreases, and when the connector housing 2 is finally completely housed in the main housing 1, the terminals 12 and 13 are all aligned and fixed at an angle of 90 °. That is, as shown in FIG. 1, the rear end side of the lower terminal 13 and the rear end side of the upper terminal 12, which are aligned at 90 °, have an alignment position H.
Can be assembled separately.

Finally, the outer shield case 5 is attached to the outside of the main housing 1 by engaging the ground terminal 26 and the slit 8c of the main housing 1 and sliding them, and the assembly of the socket is completed.

In this way, the plurality of terminals 12, 1
The alignment state of the front end portions of 3 can be accurately confirmed visually, and the rear end portions of the terminals 12 and 13 can be automatically assembled in a certain direction during assembly, and the assembly can be simplified. In addition, it has a structure that can significantly eliminate defective products such as missing items.

[0057]

As described above, according to the present invention,
A socket of a rectangular connector having a large number of terminals has two housings, an inner housing and an outer housing. An elastic terminal is fixed to one of the housings, the rear part is bent over 90 °, and the other housing is engaged with the terminal. The terminal position regulation slits are provided, and the assembly is performed by inserting one housing into the other housing while regulating the terminal position with the terminal position regulation slits, so it is easy and reliable to regulate the terminal position during assembly work. Can be done, thus improving the manufacturing efficiency of the connector.

Further, by making the connecting tip portion of the plug contact portion project at least from the end portion of the opening surface of the connector housing, the engaging and locking state of the terminal can be visually confirmed at the time of assembly. It becomes extremely easy to remove defective and missing items.

[Brief description of drawings]

FIG. 1 is a sectional view of a socket of a rectangular connector according to the present invention.

FIG. 2 is a front view of the socket.

FIG. 3 is an exploded perspective view of the socket.

FIG. 4 is a rear perspective view of the main housing and the connector housing of the socket.

FIG. 5 is an enlarged perspective view of a main part of a terminal position regulating slit of the main housing.

[Explanation of symbols]

 1 Main Housing (First Housing) 2 Connector Housing (Second Housing) 3 Inner Shield Case 4 Plug Contact Part 5 Outer Shield Case 6 Main Housing 1 Port 7 Frame 8 Cylindrical 8a Lower Plate 8b, 8c Slit 9, 14 and 19 Projection 10 Groove 11 Terminal position regulating slit 11a Deep slit 11b Shallow slit 12 Upper terminal 13 Lower terminal 14 Rear hole of connector housing 2 Lower plate of connector housing 2 Side plate of connector housing 2 17 Slit 18, 26 ground terminal 20, 21 collar part 24 insulating plate 24a groove 24b engaging part 25, 27 stopper

Claims (7)

[Claims] 1. A housing in which a terminal position regulating slit is provided at a predetermined position formed in a rectangular tubular shape of an insulator,
A socket comprising an elastic conductive wire bent at a predetermined angle, wherein the elastic conductive wire is position-regulated by the terminal position-regulating slit and is assembled in an aligned state. . 2. The first housing, which is formed of an insulating rectangular tube, and the second housing, which is formed of an insulating rectangular tube, so as to contact an inner surface of the first housing. The terminal of the elastic conductive wire fixed to the second housing and bent at an angle of 90 ° or more is guided by the terminal position restricting slit formed in the first housing to restrict the position. Meanwhile, the second housing is assembled by being inserted into the first housing.
Rectangular connector socket described in. 3. A plug insertion space surrounded by the first housing, the second housing inserted from the rear side of the first housing, and the second housing so as to protrude from the rear side. An insulating flat plate fixed to the second housing, a plurality of terminals arranged in parallel to each other on the surface of the insulating flat plate and extending to the rear outer side of the second housing, and provided in the first housing. And a slit for regulating the terminal position, which engages with the rear end of each terminal, and the terminal is bent at an angle of 90 ° or more before assembly, and when assembled,
The socket for a rectangular connector according to claim 2, wherein the second housing is assembled by pushing the second housing from the rear of the first housing while guiding the terminal by the slit. 4. The socket for a rectangular connector according to claim 2, wherein the terminal is formed by narrowing the width of the rear portion of the elastic strip-shaped conductive contact piece. 5. The socket for a rectangular connector according to claim 2, wherein the terminal is fixed to the second housing after being bent by 90 ° or more. 6. The socket for a rectangular connector according to claim 2, wherein the terminal is fixed to the second housing and then bent at 90 ° or more. 7. A first housing formed of an insulating rectangular tube, a second housing formed in a rectangular tube and inserted and fitted into the first housing, and the inside of the second housing. And an insulating flat plate which is formed in a flat plate shape and has a terminal insertion groove for engaging a terminal on the upper and lower surfaces thereof, and which fits the first housing and the second housing together. When it is opened, the front end portion of the terminal insertion groove of the insulating flat plate portion is located rearward of the front end surface of the first housing and forward of the front end surface of the second housing. Connector socket.