JPH10321307A - System connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve productivity by high density mounting of a backboard and facilitation of installation to the backboard by arranging a backboard installing means to fix a relay plug connector positioned through the backboard in its plug terminal arranging area, in a base shroud. SOLUTION: In a condition where a second plug contact 311b of a relay plug connector 31 is inserted into respective terminal holes 11'a of a backboard 11', an end part of an insulator fixing part projects from a bottom plate of a base shroud 321. The base shroud 321 and the plug connector 31 are fixed together through the backboard 11' by press-in of the insulator fixing part to a fixing hole 321e by inserting the base shroud 321 in the arrow D1 direction from the bottom plate side so that a contact 311b enters the fixing hole 321e. Next, the shroud can be installed on the backboard 11' by fitting a guide shroud 322 to the base shroud 321 in the arrow D2 direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system connector for connecting a jack connector on an electronic device side and a jack connector on an external device side via a shroud to a relay plug connector mounted on a back board of the electronic device. In particular, the present invention relates to a system connector for improving the mounting density of the backboard and improving the productivity by facilitating the mounting of the relay plug connector and the shroud on the backboard.

[0002] Advances in electronic technology have resulted in an increase in the amount of signals exchanged between electronic devices. Recently, in order to cope with such an increase in the amount of signals, electronic devices and external devices have been connected to a backboard in the electronic device. The technology of connecting with a system connector via the interface has been put to practical use.

A general system connector includes, for example, a board jack connector located in an electronic device,
A relay plug connector mounted on a backboard in the electronic device and connected to the board jack connector, a jack connector connected to an external device, and a peripheral wall for guiding the jack connector; Guide insulator, etc. to be mounted at the position corresponding to the plug connector,
However, in such a system connector, since the area occupied by the relay plug connector and the shroud mounted on the backboard and the shroud occupies a large area with respect to the backboard, high-density mounting as a backboard and, thus, an electronic device is realized. In many cases, it is impeded, and the response is strongly desired.

[0004]

2. Description of the Related Art FIG. 15 is a diagram showing a configuration example of a conventional system connector, and FIG. 16 is a diagram for explaining details of the system connector of FIG.

In FIG. 15, a conventional system connector 1 is a circuit board 11 located inside an electronic device A indicated by a dashed line.
And a relay plug connector (hereinafter simply referred to as a plug connector) 13 connected to the board jack connector 12 mounted on the back board 11 ′ of the electronic apparatus A. A plurality of jack connectors 15 connected to an external device (not shown)
And a guide shroud 14 made of a resin molding material that is connected to the plug connector 13 when each of the jack connectors 15 is inserted into the outer shape.

Here, each component of the system connector 1 will be described with reference to FIG. In the drawings, the case where the board jack connector 12 is configured in two rows of terminals will be described as an example.

In FIG. 16, (16-1) shows the jack connector for a board on the electronic device side, (16-2) shows a plug connector, (16-3) shows a shroud, and (1-3) shows a shroud.
6-4) shows the jack connectors on the external device side, respectively.

The board jack connector 12 shown in FIG. 16 (16-1), which is a perspective view in partial cross section, is mounted on the edge 11a of the circuit board 11 located inside the electronic device A. This is a normal right angle type.

That is, the board jack connector 12
Two types of jack terminals 1 each having one end formed with a jack contact 121a and an L-shaped bent end of a lead portion 121b following the contact formed on an external connection terminal 121c.
21 _-1 and 121 _-2 and the jack contact 121a
Respective jack terminal 121 as an external connection terminal 121c is aligned with Matorikkkusu respectively two rows _-1 and 12
It is made of insulator 122 to place a 1 _-2.

[0010] Note that the above two types of jack terminals 121 _-1 and 121 _-2, in which only the length and L bending position of the lead portion 121b described above are different. Therefore, for example, the two types of jack terminals 121 _-1 and 121 _-2 positioned and fixed to a resin molding die in a region except for the lead portion 121b of the normal of the insulator 122 in the insert molding technique of injecting resin and a resin By molding, the board jack connector 12 can be configured as illustrated.

On the other hand, in FIG. (16-2) for explaining a plug connector corresponding to the board jack connector, the plug connector 13 is composed of a straight plug terminal 131 and a plurality of the plug terminals 131. And an insulator 132 implanted at a position corresponding to each jack contact.

The plug terminal 131 in this case is
A first end corresponding to the jack contact 121a
The other end of the plug contact 131a via the insulator fixing portion 131b is formed on the second plug contact 131c corresponding to the jack connector on the external device side.

In the plug terminal 131, the region of the insulator fixing portion 131b is slightly thicker than, for example, the first and second plug contacts 131a and 131c located at both ends, or has a protruding bulge on the peripheral surface. The second plug contact 131c is formed as shown in FIG.
The contact area 131c 'corresponding to the jack connector 15 described with reference to FIG. 15 is formed at the distal end after the back board 11' and the shroud 14 described in FIG.

Further, the peripheral wall 1 fitted to the peripheral surface 122a of the jack contact arrangement area of the board jack connector 12.
The insulator 132 provided with 32a has a terminal hole 132b to which the plug terminal 131 can be fixed by press-fitting the insulator fixing portion 131b of the plug terminal 131 at a position corresponding to the jack contact 121a on the bottom plate portion. Further, projecting portions 132c for attaching the insulator 132 to the back board 11 'are formed at both ends of the bottom plate portion in the longitudinal direction, that is, the terminal row direction, with attachment holes 132d.

The peripheral wall 132a is formed at a height slightly exceeding the first plug contact 131a of the plug terminal 131. Therefore, for example, the plug terminal 131 starting with the first plug contact 131a
Is inserted into the terminal hole 132b from the bottom side of the insulator 132, and the insulator fixing portion 131b is pressed into the terminal hole 132b to position and fix the plug terminal 131, whereby each plug terminal 131 is planted in the insulator 132. The provided plug connector 13 can be configured as shown.

The above-mentioned insulator 131b may be resin-molded by a usual insert molding technique of positioning and fixing the resin to a resin molding die in a region other than the insulator fixing portion 131b of the plug terminal 131 and injecting resin. The board jack connector 12 can be obtained as shown.

The insulator 13 of the plug connector 13
In this case, the shroud 14 having the peripheral wall 14a and the protruding portion 14b having substantially the same shape as the second plug contact 131 of the bottom plate portion 14c as shown in FIG.
A terminal hole 14d through which the second plug contact 131c can penetrate is formed at each position corresponding to c, and is formed so as to protrude from the bottom surface 14c 'of the bottom plate portion 14c by a step amount "a". The protrusion 14
b at a position corresponding to the mounting hole 132d.
The same mounting hole 14e as 32d is formed.

The jack connector 15 for an external device described with reference to FIG. 15 is, for example, as shown in FIG.
Are those having a length "c" corresponding to the required number of terminals in the width "b _2" corresponding to the width direction in the process of the peripheral wall 14a "b _1" in the shroud 14, the terminal holes 14d of the shroud 14 In other words, a jack terminal (not shown) that can be connected to the contact area 131c 'of the plug terminal 131 is arranged at each position corresponding to the plug terminal 131 of the plug connector 13.

By inserting the plurality of jack connectors 15 into the peripheral wall of the shroud 14, the jack connectors 15 can be connected to the board jack connector 12. The signal lines 15 connected to the respective jack connectors 15
“a” has the other end connected to an external device (not shown).

On the other hand, in the pack board 11 'shown in FIG. 15, the plug contacts 131c penetrate with sufficient margin into the respective positions corresponding to the second plug contacts 131c of the plug connector 13. A terminal hole 11'a to be obtained is formed, and a mounting hole 11'b having substantially the same size as the mounting hole is formed at a position corresponding to the mounting hole 132d of the plug connector 13.

Therefore, the second plug contact 131c of the plug connector 13 located on the side of the electronic device A is inserted into the terminal hole 11'a of the pack board 11 ', and the projecting portion 132c of the plug connector 13 is inserted into the pack. Board 1
1 ', the second plug contact 131
c penetrates through the terminal hole 11'a of the pack board 11 'and projects to the back side, that is, to the outside of the electronic device.

Next, the shroud 14 located outside the pack board 11 'is inserted into the terminal hole 14d of the second plug contact 131c so that the projecting portion 14
b is brought into close contact with the pack board 11 ', and the above-mentioned contact area 131 of the second plug contact 131c is formed.
c ′ can protrude inside the peripheral wall of the shroud 14.

Accordingly, the plug connector 13 and the shroud 14 are connected to the pack board 11 'by screws or the like penetrating the mounting hole 132d of the plug connector 13, the mounting hole 11'b of the pack board 11', and the mounting hole 14e of the shroud 14. By fixing, the conventional system connector 1 can be configured as shown in FIG.

It should be noted that, for example, a modified portion of the circuit is found on the circuit board 11 or the back board 11 'described above,
When it is necessary to partially change the connection between the board jack connector 12 and the jack connector 15, when the plug connector 13 is mounted on the back board 11 ', the plug connector 13 projects to the back side of the back board 11'. The base region of the second plug contact 131c, that is, the region of the above-mentioned step difference "a" of the shroud 14 is subjected to wire wrapping, and the other end of the wrapping wire is connected to the substrate 1
1, 11 'and the jack connectors 12, 15 and the like, and the plug connector 13 and the shroud 14 are fixed by the above-described means, thereby realizing the above-mentioned modification and the change of the connection. it can.

In this system connector 1, the board jack connector 12 located inside the electronic device A can be attached to and detached from the plug connector 13, and the electronic device A
A plurality of jack connectors 15 located outside of the electronic device A can be individually attached to and detached from the plug connector 13 via the shroud 14 and the back board 11 '. There is an advantage that the connection between the jack connectors 15 connected to the device can be easily and freely and freely released.

[0026]

However, in such a system connector 1, the plug connector 13 and the shroud 14 are not provided.
Since the protrusions 132c and 14b provided at both ends in the longitudinal direction are used to fix the back board 11 'to the back board 11', the mounting area of the back board 11 'becomes large, so that high-density mounting as the back board 11' is hindered. In addition, since the plug connector 13 and the shroud 14 are attached to the backboard with screws, it takes a lot of time to attach each of them, and it takes a lot of man-hours to correct circuits such as wrapping wires and to modify the connection. There was also a problem that improvement could not be expected.

[0027]

The object of the present invention is to provide a jack connector for a board in an electronic device, a plurality of jack connectors connected to an external device, a jack connector for a board mounted on an inner surface of a back board of the electronic device, and a jack. A relay plug connector for connecting the connectors, and a shroud provided at a position corresponding to the relay plug connector on the outer surface of the backboard with a peripheral wall for aligning a jack connector connected to the external device, the shroud comprising: Backboard mounting means comprising a base shroud and a guide shroud engaged with the base shroud, wherein the base shroud has the relay plug connector positioned via the backboard fixed in a plug terminal arrangement area thereof. The base shroud and the guide shroud are provided. Bets are solved by the system connector comprises a detachable means of mutual.

Further, the shroud includes a substrate shroud, two first guide shrouds attached to and detached from both ends of the substrate shroud in a longitudinal direction, and a plurality of second and second guide shrouds each attached to and detached from an intermediate region of the substrate shroud. A third guide shroud, wherein the second guide shroud is
The jack connector is formed so as to be connectable to the relay plug connector when it is attached to the board shroud, and the jack connector is connected to the relay plug when the third guide shroud is attached to the board shroud. The problem is solved by a system connector that is formed so that it cannot be connected to the connector.

If the system connector is configured such that the plug connector described with reference to FIG. 16 can be attached to the backboard in the plug terminal arrangement area, a projection for attaching to the backboard is not required, so that high-density mounting of the backboard can be achieved. At the same time, it is possible to expect improvement in productivity by facilitating correction work such as circuit modification and connection change using a wrapping wire.

Therefore, in the present invention, the shroud of the conventional system connector is divided into a base shroud for fixing the plug connector and a guide shroud to be fitted to the base shroud, and then the plug connector and the base shroud via the backboard are separated. The system connector is configured so that the cover shroud can be fitted to the base shroud after the cover shroud is fixed to the backboard by press-fitting between the two and after performing the above-mentioned correction work with the wrapping wire.

This means that the above-mentioned projecting portion in the conventional system connector is not required, so that the mounting area to the backboard can be reduced, and at the same time, the correction work using the wrapping wire can be facilitated.

Therefore, high-density mounting on the backboard and improvement in productivity by facilitating attachment to the backboard can be realized at the same time.

[0033]

FIG. 1 is a view for explaining a configuration example of a system connector according to the present invention, FIG. 2 is a view for explaining a plug connector according to the present invention, and FIG. 3 is a view for explaining a shroud according to the present invention. FIG. 4 is a diagram illustrating a base shroud in FIG. 3, FIG. 5 is a diagram illustrating a guide shroud in FIG. 3, and FIG. 6 is a diagram illustrating a method of mounting the shroud of the present invention on a backboard.

FIG. 7 is a view for explaining another shroud according to the present invention together with an assembling method, FIG. 8 is a view for explaining the substrate shroud in FIG. 7, and FIG. 9 is a first view corresponding to the substrate shroud in FIG. FIG. 10 is a diagram illustrating a guide shroud, FIG. 10 is a diagram illustrating a second guide shroud corresponding to the substrate shroud of FIG. 8, and FIG. 11 is a diagram illustrating a third guide shroud corresponding to the substrate shroud of FIG. 1
2 is a view for explaining a method of mounting the board shroud of FIG. 8 on a back board, FIG. 13 is a view for explaining an application example of the shroud of FIG. 7 together with a jack connector, and FIG. 14 is a fourth view corresponding to the shroud of FIG. It is a figure explaining a guide shroud.

In the figures, the case where the present invention is applied to the system connector described in FIG. 15 is used as an example. Therefore, the same symbols are given to the same target members and parts as those in FIGS. The description is omitted.

That is, the system connector 3 according to the present invention in FIG. 1 is the board jack connector 1 described in FIG.
2, a jack connector 15, a plug connector 31 according to the present invention, and a shroud 32 according to the present invention.

As shown in FIG. 2, the plug connector 31 has a straight plug terminal 311 and an insulator 312 for implanting the plurality of plug terminals 311 at positions corresponding to the respective jack contacts of the board jack connector 12. Consists of

In this case, the plug terminal 311 is used.
Is a first plug contact 1 whose one end is described in FIG.
The other end of the second plug contact 31a via the insulator fixing portion 311a corresponds to the jack connector 15 at 31a.
1b.

The plug terminal 311 having substantially the same length as that of the plug terminal 131 shown in FIG.
Like the first and second plug contacts 31a and 31b, the first and second plug contacts 131a and 311b are slightly thicker or have a protruding bulge on the peripheral surface. Sato shroud 32
The length is formed to be slightly longer than the sum of the thickness of the base shroud 321 to be described later and the bottom of the insulator shroud 131b.

The second plug contact 311b, which is shorter by the increase in the length of the insulator fixing portion 311a, has a tip end after passing through a bottom plate portion 322b of a later-described guide shroud 322 of the shroud 32. 15 are formed in the contact area 311b 'corresponding to No. 15.

On the other hand, the above-mentioned insulator 312 is the same as the protrusion 1 of the insulator 132 in the plug connector 13 described with reference to FIG.
32c is omitted, and the other shapes are the same as the insulator 132.

Therefore, the plug terminal 311 is press-fitted into the insulator 312 as described with reference to FIG. 16 or the insulator 312 is resin-molded by the insert molding technique as described above, so that each of the insulators 312 is formed. The plug connector 31 in which the plug terminals 311 are implanted can be configured as shown.

On the other hand, as shown in FIG. 3, the shroud 32 has a base shroud 321 and the base shroud 32.
1 and a guide shroud 322 that fits into the guide shroud. For easier understanding, the base shroud will be described with reference to FIG. 4 and the guide shroud will be described with reference to FIG.

In FIG. 4 for explaining the base shroud, (4)
-1) is an overall perspective view, and (4-2) is a partial cross-sectional front view as seen from the direction of arrow A. In the figure, the base shroud 321 made of a resin molding material has the plug terminal 31 in plan view.
Projections 321b projecting to one side of the bottom plate 321a on one side of the width direction of the bottom plate 321a having a size covering the arrangement area of the bottom plate 321a
And a hook 321c having a thickness smaller than the protrusion and further having a claw 321c 'protruding from the protrusion toward the outside in the width direction, and formed by pressing the claw 321c' from the outside in the width direction. The hook 321c can be displaced.

The protrusion of the projection 321b from the bottom plate surface is formed so as to substantially match the step "a" between the protrusion 14b and the bottom plate 14c of the shroud 14 described with reference to FIG. .

The projection-side end surface 321 of the projection 321b
A concave hole 321d is provided in b '. The plug terminal 311 is attached to the insulator fixing portion 3 at each position of the bottom plate 321a corresponding to the plug terminal 311.
A fixing hole 321e that can be fixed by press-fitting 11a is formed.

In FIG. 5 for explaining the guide shroud, (5)
-1) is an overall perspective view, (5-2) is a partial cross-sectional side view seen from the arrow B direction, and (5-3) is a plan view seen from the arrow C direction.

In the drawing, the guide shroud 322 made of a resin molding material has a size in plan view of the base shroud 321.
A bottomed box shape having a peripheral wall 322a having the same size as the peripheral wall 14a of the shroud 14 and having the same height and inner width as the peripheral wall 14a, and hooks 321 of the base shroud 321 at four corners.
At each position corresponding to c, a hook hole 322c having a surface 322c 'on which the hook 321c' of the hook 321c is inserted when the hook 321c is inserted from the bottom plate 322b side to the protruding end surface 321b 'is provided. I have.

In the bottom plate 322b, the terminal holes 3 through which the second plug contacts 311b of the plug terminals 311 can pass with a margin are provided at respective positions corresponding to the fixing holes 321e in the base shroud 321.
22d are formed.

Further, at positions near the hook holes of the bottom plate portion 322b and corresponding to the concave holes 321d of the base shroud 321, projections 322e which can be positioned by fitting into the concave holes are provided.

When the hook 321c of the base shroud 321 is inserted into the hook hole 322c of the guide shroud 322, the projection shroud 321 is brought into contact with the projecting end surface 321b 'of the base shroud 321 at the position where the bottom surface of the guide shroud 322 abuts. The shroud 32, which can be fixed and shown in FIG. 3, can be configured as shown.

At this point, the base shroud 3
21 and the terminal hole 322d of the guide shroud 322 coincide with each other. FIG. 6 for explaining a method of attaching the shroud to the backboard.
(6-1) shows the state before the shroud is attached and (6-)
2) shows the state when the shroud is attached.

That is, in (6-1) of the figure, the second plug contact 311b of the plug connector 31 described in FIG. 1 is inserted into each terminal hole 11'a of the back board 11 '. At this time, the end of the insulator fixing portion 311a following the second plug contact is in a state of protruding from the bottom plate 321a of the base shroud 321.

Therefore, the base shroud 3 described with reference to FIG.
21, fixing holes 321e in by inserting the second bottom plate side as shown by the arrow D ₁ as plug contact enters, via the backboard 11 'by press-fitting of the insulator attaching portion 311a to the fixing hole 321e Thus, the base shroud 321 and the plug connector 31 can be fixed.

In this case, if necessary, (6-2)
As described with reference to FIG.
Is applied. Next, the guide shroud 322 shown in FIG.
To the arrow D as explained in FIG. _TwoBase shroud like
Shroud according to the present invention when fitted to
32 can be attached to the backboard 11 'as shown.
it can.

FIG. 7, which illustrates another shroud together with an assembling method, shows (7-1) a state before assembling and (7-2) a state after assembling. That is, in (7-1) of the figure, the shroud 35 is composed of one substrate shroud 351, two first guide shrouds 352 fitted to both ends of the substrate shroud 351 and a plurality of second guide shrouds 353, respectively. And a plurality of third guide shrouds 354.

Here, similarly to the case of FIG. 3, the substrate shroud is first shown in FIG. 8, the first guide shroud is shown in FIG. 9, the second guide shroud is shown in FIG. 10, and the third shroud is shown in FIG.
The respective guide shrouds will be described.

FIG. 8 is a perspective view of the substrate shroud.
The substrate shroud 35 made of a resin molding material and having the same planar size as the base shroud 321 described with reference to FIG.
Reference numeral 1 denotes that the hooks 351a which are the same as the hooks 321c of the base shroud 321 are formed along the both sides in the width direction of the board shroud 351 at a pitch of the thickness "c" of the jack connector 15.

A flange 351b projecting in each direction at the same height as the projection 321b of the base shroud 321 is formed on both sides in the direction adjacent to each hook 351a so as to face between adjacent hooks. I have.

The bottom plate 351 of the substrate shroud 351
c, the bottom plate 32 of the base shroud 321
A fixing hole 321e similar to 1a is formed. on the other hand,
The two first guide shrouds 352 made of a resin molding material in FIG. 9 have the same size as the front view of the guide shroud 322 described in FIG. The hook holes 32 described with reference to FIG. 5 are provided at two positions corresponding to two pairs of hooks 351a (351a- ₁ , 351a- ₂ and 351a- ₃ , 351a- ₄ in the figure), which form a pair at both ends in the longitudinal direction of 351.
2c is formed and a second or third
The end surface 352a on one side in the longitudinal direction, which is a contact surface with each guide shroud, has a dovetail 352b and a dovetail groove 352c protruding from the corresponding contact surface in a region corresponding to the guide shroud.
Are formed in the hook hole direction.

Further, the plurality of second guide shrouds 353 made of a resin molding material in FIG. 10 have a concave shape in a front view as viewed from the direction of arrow E which is the same as the sectional view shape of the guide shroud 322 described in FIG. The length in the longitudinal direction is equal to the thickness “c” of the jack connector 15.

The hook holes 32 are formed on the outer surface of each wall.
2c is formed and the substrate shroud 35
1 end surface 353a corresponding to one contact surface 352a
Each has a groove 353b and a groove 353c corresponding to the groove and the groove of the substrate shroud 351.

The size of the bottom plate 353d of the second guide shroud 353 is such that the second plug contact 311b of the plug terminal 311 can pass through the bottom plate 353d at a position corresponding to each of the plug terminals 311 described above. Are formed.

Further, in FIG. 11, the plurality of third guide shrouds 354 made of a resin molding material have the same front view size as the first guide shroud 322 viewed in the direction of arrow F, and the length in the longitudinal direction is equal to that of the jack shroud 322. The thickness of the connector 15 is equal to the thickness “c”.

Each of the outer surfaces in the width direction has the hook hole 3.
22c and the substrate shroud 3
51, a longitudinal end surface 354 corresponding to the contact surface 352a.
Each of the a has a groove 354b and a groove 354c corresponding to the groove of the substrate shroud 351.
Are formed.

The third guide shroud 354 has a through hole having a size that allows the second plug contact 311b of the plug terminal 311 to pass through with a margin at each position corresponding to the plug terminal 311 described above. 35
4d is formed.

Therefore, as shown in FIG. 7 (7-1), first, hooks 351a- ₁ , 351a- ₂ and 351a- ₃ , 351a- ₄ located at both ends in the longitudinal direction of the substrate shroud 351.
The first guide shroud 351 is pointed in each region of the arrow f _1.
Into each hook 351 and the hook hole 322c.
Each is fixed by fitting.

Next, the third guide shroud 354 is inserted as shown by an arrow f ₂ so as to correspond to the hook 351 located in each of the above-mentioned jack connector insertion areas where the jack connector 15 does not need to be connected. However, in this case, when the third guide shroud 354 is located adjacent to the third guide shroud 354, the gaps between the respective guide shrouds are connected by fitting between the above-mentioned tangential grooves provided on the respective guide shrouds. Become.

Thereafter, the first guide shroud 35
As 1 and between said third guide shroud 354, the jack necessary area of the connector 15, the second to the respective positions corresponding to the hooks 351 located on the guide shroud 353 of arrow f ₃ in other words By inserting, the state shown in (7-2) of FIG. 7 can be obtained.

In this case, each of the second guide shrouds 353 has a contact surface with an adjacent guide shroud, which is connected by fitting with the above-mentioned dovetail groove. Assured positioning of the shroud 351 can be realized.

FIG. 12 for explaining a method of mounting the shroud 35 on the backboard, (12-1) shows a state before mounting, and (12-2) shows a state after mounting. .

That is, in (12-1) of the figure, the second plug contact 311b of the plug connector 31 described with reference to FIG. 1 is inserted into each terminal hole 11'a of the back board 11 '. At this point, the end of the insulator fixing portion 311a following the second plug contact is projected from the bottom plate 351c of the substrate shroud 351.

Therefore, the substrate shroud 3 described with reference to FIG.
As described with reference to FIG. 6, by pressing the fixing holes 321e into the insulator fixing portions 311a, the board shroud 351 can be fixed to the plug connector 31 via the back board 11 '.

In this case, if necessary, a correction operation using a wrapping wire is performed in the same manner as in the case shown in FIG. Then, as described with reference to FIG. 7, the two first guide shrouds 351 are inserted by fitting the above-mentioned dovetail grooves, and the hook holes 32 of the shroud 351 are further inserted.
2c and the hook 351a of the substrate shroud 351 fix both.

Next, a third guide shroud 354 is inserted into the area where the jack connector 15 does not need to be connected by fitting the above-mentioned dovetail groove, and the hook hole 322c of the shroud 354 and the hook 35 of the board shroud 351 are inserted.
When both are fixed by 1a, the second plug contact 311b at the position corresponding to the third guide shroud is located in the through hole 354d of the third guide shroud 354 and is not exposed.

At this point, the third guide shroud 35
No. 4 In other words, the second plug contact 311b in the area corresponding to the jack connector 15
Are in a state of protruding from the bottom plate 351c of the substrate shroud 351.

Therefore, the second guide shroud 35
3 is inserted by fitting the above-mentioned dovetail groove, and the hook hole 322c of the shroud 353 and the substrate shroud 351 are further inserted.
When the two are fixed with the hook 351a, only the contact area 311b 'of the second plug contact 311b corresponding to the jack connector 15 projects from the through hole 321e of the second guide shroud 353. Fig. 12-2 is a plan view of the mounted state.
Can be mounted on the backboard 11 'as shown in FIG.

In the system connector provided with the shroud 35, the required insertion position of the jack connector is clarified by the above-described third guide shroud 354, and the second guide shroud 353 is formed as described above. Since the positioning is accurately performed by the groove, there is an advantage that the insertion and removal of the jack connector 15 can be easily and reliably performed.

Since the first to third guide shrouds 352 to 354 are all fixed by the hooks 351a, the hooks of the first to third guide shrouds 352 to 354 can be easily removed from the substrate shroud 351 by removing the hooks of the hooks. The present invention can be applied to any system connector having a different connection position of the jack connector 15 and the jack connector 15
There is a merit that can be immediately changed even if the connection position is changed.

On the other hand, since the jack connector 15 and the shroud 14 described with reference to FIG. 15 are not provided with means for preventing the jack connector from being reversely inserted, the jack connector 15 and the shroud 14 are inserted upside down into the shroud 14. In some cases.

Therefore, as shown in (13-1) of FIG.
For example, a technology for forming a chamfered slope 18a at a part of a ridge line along the insertion direction of the insulator of the jack connector 18 to prevent erroneous insertion has been put to practical use.

Referring to FIG. 13 (13-2) for explaining a shroud corresponding to the jack connector 18, the shroud 38 is composed of one base shroud 351 described above,
It is composed of the two first guide shrouds 352 described above, the plurality of third guide shrouds 354 described above, and the plurality of fourth guide shrouds 381 according to the present invention.

Here, the fourth guide shroud is shown in FIG.
4 will be described first. That is, in this case, the fourth guide shroud 381 made of a resin molding material is provided only in a region corresponding to the slope 18 a of the inner wall surface 381 a for guiding the jack connector 18 of the second guide shroud 353 described in FIG. A triangular protrusion 381b having a size corresponding to the slope is additionally formed, and the other portions are equivalent to the second guide shroud 353.

Therefore, as described with reference to FIG. 7, first, the first guide shroud 352 is inserted and fixed to both ends of the substrate shroud 351 in the longitudinal direction, and then the third guide shroud 354 is attached similarly to FIG. After inserting and fixing, the fourth shroud 381 is inserted and fixed in the same manner as in FIG.
It can be configured as shown in 3-2).

The system connector provided with the shroud 38 has an advantage that erroneous insertion of the jack connector of the external device which is individually inserted can be prevented. The above-described means for preventing erroneous insertion between the jack connector and the shroud may be, for example, a linear projection or groove provided on the jack connector and a groove or linear projection provided at a position corresponding to the second guide shroud 353. Obviously, the same advantages can be obtained by the means.

[0086]

As described above, according to the present invention, there is provided a system connector which improves the mounting density of a backboard and improves productivity by facilitating attachment of a relay plug connector and a shroud to the backboard, and a method of manufacturing the same. be able to.

In the description of the present invention, the case where the number of the terminal rows is two is taken as an example. However, the same effect can be obtained by applying the present invention to the case where the number of the terminal rows is three or more. Is clear.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration example of a system connector according to the present invention.

FIG. 2 is a diagram illustrating a plug connector according to the present invention.

FIG. 3 is a diagram illustrating a shroud according to the present invention.

FIG. 4 is a view for explaining a base shroud in FIG. 3;

FIG. 5 is a view for explaining a guide shroud in FIG. 3;

FIG. 6 is a diagram illustrating a method of mounting the shroud of the present invention on a backboard.

FIG. 7 is a diagram for explaining another shroud according to the present invention together with an assembling method.

FIG. 8 is a view for explaining a substrate shroud in FIG. 7;

FIG. 9 is a diagram illustrating a first guide shroud corresponding to the substrate shroud of FIG.

FIG. 10 is a view for explaining a second guide shroud corresponding to the substrate shroud of FIG. 8;

FIG. 11 is a view for explaining a third guide shroud corresponding to the substrate shroud of FIG. 8;

FIG. 12 is a view for explaining a method of mounting the board shroud of FIG. 8 on a back board.

FIG. 13 is a diagram illustrating an application example of the shroud of FIG. 7 together with a jack connector.

FIG. 14 is a diagram illustrating a fourth guide shroud corresponding to the shroud of FIG.

FIG. 15 is a diagram showing a configuration example of a conventional system connector.

FIG. 16 is a view for explaining details of the system connector of FIG. 15;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 3 System connector 11 Circuit board 11 'Backboard 11'a Terminal hole 12 Board jack connector 15 Jack connector 18 Jack connector 18a Slope 31 Relay plug connector 32, 35, 38 Shroud 131a First plug contact 311 Plug terminal 311a Insulation Body fixing portion 311b Second plug contact 311b 'Contact area 312 Insulator 321 Base shroud 321a Bottom plate 321b Projection 321b' Projecting side end surface 321c Hook 321c 'Claw 321d Concave hole 321e Fixing hole 322 Guide shroud plate 322a 322a 322c 'surface 322d Terminal hole 322e Projection 351 Substrate shroud 351a, 351a- _{1 to} 351a _{- 4} Hook 351b Flange 351c Bottom plate 3 52 First guide shroud 352a Contact surface 352b Provided 352c Provided groove 353 Second guide shroud 353a End surface 353b Provided groove 353c Provided 353d Bottom plate 353e Through hole 354 Third guide shroud 354a End surface 354c Provided hole 354b Provided groove Fourth guide shroud 381a Inner wall surface 381b Triangular projection

Continuing from the front page (72) Inventor Hideo Miyazawa 2-3-5 Higashi Gotanda, Shinagawa-ku, Tokyo Inside Fujitsu Takamizawa Component Co., Ltd. No. 1 Inside Fujitsu Limited

Claims (7)

[Claims] 1. A board jack connector in an electronic device, a plurality of jack connectors connected to external devices, and a relay plug mounted on an inner surface of a back board of the electronic device and connecting the board jack connector and the jack connector. A connector and a shroud having a peripheral wall for aligning a jack connector connected to the external device, the shroud being mounted on the outer surface of the backboard at a position corresponding to the relay plug connector, wherein the shroud is related to the base shroud and the base shroud. The base shroud is provided with a back board mounting means for fixing the relay plug connector positioned via the back board in a plug terminal arrangement area thereof; The above-mentioned guide shroud has attachment / detachment means A system connector characterized in that: 2. The relay plug connector according to claim 1, wherein the backboard mounting means includes a first plug contact on the board jack connector side and a second plug contact on the jack connector side. An insulator fixing portion protruding from the backboard at a base side of the second plug contact; and a fixing hole formed on a bottom plate of the base shroud and engaged with the insulator fixing portion. A system connector. 3. The attaching / detaching means according to claim 1, comprising: a plurality of hooks raised from a bottom plate of the base shroud; and a hook hole formed in the guide shroud so as to engage with the hook. Features system connector. 4. The shroud according to claim 1, wherein the substrate shroud, two first guide shrouds attached to and detached from both ends of the substrate shroud in the longitudinal direction, and a plurality of shrouds attached to and detached from an intermediate region of the substrate shroud. The second guide shroud is formed so that the jack connector can be connected to the relay plug connector in a state where the jack shroud is attached to the board shroud. The system connector according to claim 1, wherein said guide shroud is formed so that said jack connector cannot be connected to said relay plug connector while being attached to said board shroud. 5. The first to third guide shrouds according to claim 4, further comprising: positioning means for positioning adjacent ones on respective contact surfaces with the adjacent first to third guide shrouds. A system connector comprising: 6. The positioning means according to claim 5, wherein the first to third guide shrouds are parallel to the hook holes according to claim 3 at the same positions on the contact surfaces of the adjacent guide shrouds with the respective guide shrouds. A system connector comprising a pair of parallel grooves arranged in parallel as described above. 7. The system connector according to claim 4, wherein the second guide shroud includes a projection corresponding to an erroneous insertion preventing means formed on a jack connector connected to the external device.