JPH0719632B2 - Multi-pole shield connector - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-pole connector used for wiring of a computer or the like, and more particularly to a plurality of contact joint legs which are held in a connector housing and project outward. Tine) is related to a multi-pole connector of a type in which a plurality of rows are exposed and juxtaposed.

(Prior Art) A connector for a computer, particularly a large-sized computer, has a large amount of signal to be transmitted, and therefore a multipolar connector having many contacts is often used. One example of such a multi-pole connector conventionally used is
Description will be made with reference to the drawings. This multi-pole connector includes a first connector 1 that holds a plurality of plug contacts 2 in a receptacle housing 3, and a second connector 5 that holds a large number of receptacle contacts 8 by a plug housing 6.
Consists of. The plug contacts 2 in the first connector 1 are held side by side in a plurality of rows in the recessable housing 3, and each row is composed of a plurality of plug contacts 2 arranged side by side. On the other hand, in the plug housing 6 of the second connector 5, the connection portion formed at one end of the receptacle contact 8 and capable of fitting with the plug contact 2 is arranged and held in a plurality of rows corresponding to the arrangement of the plug contact 2. Therefore, when the plug housing 6 is inserted into the receptacle housing 3 and fitted therein, the corresponding plug contacts 2 are fitted into the connecting portions of the respective receptacle contacts 8 so that both are electrically connected. On the other hand, the other end of the receptacle contact 8 projects outward (rearward) from the plug housing 6 as it is, and is bent as shown in the figure to project downward to form joint legs 8a in a plurality of rows. The joining legs 8a are held by the holding plate 7 in a state of being arranged in a plurality of rows.

(Problems to be Solved by the Invention) If a connector as described above is used, a large amount of signals can be transmitted with a small and lightweight connector. However, the receptacle contact 8 in the second connector 5 has the other end side. Since it projects from the plug housing 6 to the outside as it is, and the distance between the receptacle contacts 8 is small due to the demand for increasing the amount of transmitted signal, crosstalk occurs between the adjacent contacts 8.
There is a problem that noise defects may occur. In particular, since the speed of the transmission signal is increasing with the increase in computer capacity and the improvement in performance, crosstalk is more likely to occur, and the risk of noise failure is further increasing.

(Means for Solving Problems) From the above, the present invention is intended to provide a connector that prevents the occurrence of crosstalk as described above and does not cause noise defects. As a means, the multipolar connector according to the present invention is constructed as follows.

That is, the multipolar shielded connector according to the present invention comprises a split housing in which the housing is split into a plurality of rows,
According to the present invention, a plurality of holding grooves for arranging the contact members in a row are formed in the split housing so as to be isolated and held, and the split housings are superposed and joined while the contact members are held in a row in the holding grooves. It constitutes a multi-pole shielded connector in which each split housing is made by coating the surface of a conductive material body with an insulating material and electrically connecting the conductive material body to ground.

(Operation) If the connector of the present invention is configured as described above, each contact member can be separately housed and held in the holding groove of the split housing, so that crosstalk between adjacent contact members can be split. It can be blocked by the housing to prevent noise.

(Examples) Hereinafter, preferred examples of the present invention will be described with reference to the drawings.

FIG. 1 shows a housing for shielded connector according to the present invention, in which each split housing 10 to 60 (however, the split housing 30
˜60 are omitted in the figure) and a perspective view showing the cover housing 80 in a disassembled state. FIG. 2 is a side sectional view of this housing. Each of the split housings 10 to 60 includes a plurality of vertical partition plates 21 to 61 extending back and forth on the substrates 13 to 63, respectively.
Is formed, and a plurality of receptacle holding grooves 12 to 62 which are partitioned by the partition plates 21 to 61 and are arranged in the lateral direction are formed. The receptacle holding grooves 12 to 62 are deep at the front portion (left side portion in FIG. 2), but become shallower at the rear portion and are connected to the joining leg holding grooves 14 to 64. The receptacle holding grooves 12 to 62 and the joint leg holding grooves 14 to 64
Are for accommodating and holding the contact members 17 to 67 respectively, and FIG. 2 shows a state in which the contact member 17 is held in the lowermost split housing 10. The contact member 17 includes a receptacle portion 17a formed at a front end portion for fitting and electrically connecting with a mating plug terminal, a leaf portion 17b formed at a central portion, and a strip-shaped joining leg formed at a rear end portion. 17c, the receptacle part 17a and the leaf part 17b are housed in the receptacle holding groove 12, and the joint leg 17c is bent along the joint leg holding groove 14 and housed in the holding groove 14. At this time, the lower end of the joining leg 17c is adapted to project downward from the lower surface of the split housing 10.

The split housings 10 to 60 having the above-described configuration are stacked in order as shown in the drawing, and each receptacle holding groove
In a state where 12 to 62 are arranged in a line, the respective lines are overlapped so that they are arranged toward the front side. On the other hand, the joint leg holding groove 14 ~
64 is bent so that its rear end opens toward the lower surface as shown in the drawing, and the rear ends of the joint leg holding grooves 14 to 64 are arranged in a line for each split housing on the lower surface of the housing 1, and Open in a line with multiple rows overlapping.

In this way, the divided housings 10-
The cover housing 80 is overlaid on 60, and the boss portion 81 of the cover housing 80 and the boss portion of the lowermost split housing 10 are joined by bolts and nuts or the like to form a shield connector housing. The cover housing 80 includes an upper plate 83 that covers the receptacle holding groove 62 and the joint leg holding groove 64 of the uppermost split housing 60, and a pair of side plates 82 that covers the side surfaces of the stacked split housings 10 to 60. And a pair of bosses 81.

The above split housings 10 to 60 and the cover housing 80
Is integrally molded by die casting of a conductive metal such as zinc, and the entire surface of the molded product is insulation-coated with an insulating material such as polyimide. Therefore, the contact members 17 to 67 are insulated and held in the holding grooves 12 to 62 and 14 to 64 by the insulating coating, and the crosstalk between the contact members 17 to 67 is prevented by the die-cast conductive metal. It has become so.

In addition, each holding groove 12-6 in each split housing 10-60
2,14 to 64 have different shapes, so each split housing 10 to 60
The contact members that are held in rows and are formed so as to match the shape of the holding groove for each row. Then, in a state where the contact members 17 to 67 are held in the holding grooves, the receptacle portions 17a to 67a are arranged side by side in a row for each of the split housings 10 to 60 and the rows are arranged in a vertically overlapping manner. The joint legs 17c to 67c project downward from the lower surface side of the housing 1 in a plurality of rows in a state where they are arranged side by side in each row.

FIG. 3 is a perspective view showing the lowermost split housing 10,
FIG. 4 is a perspective view showing a state in which the contact member 17 is held in the split housing 10. The configuration of the split housing 10 will be described with reference to both drawings. This split housing
In FIG. 10, a plurality of vertical partition plates 11 arranged on the substrate 10
A plurality of receptacle holding grooves 12 and joint leg holding grooves 14 are formed by partitioning with boss parts at both ends.
15 are formed. A conical protrusion 11b is formed on the upper surface of the rear part of some of the vertical partition plates 11. The projection 11b serves to align the split housing 10 and the split housing 20 overlaid on the split housing 10 and to electrically connect the split housing 20 to each other. The lower surface of the split housing 20 has a fitting hole at a position corresponding to the projection 11b. 23a is formed. Therefore, as shown in FIG. 5, the projection 11b is fitted into the fitting hole 23a to position the split housings 10 and 20, and the projection 11b and the fitting hole 23a have the insulating coating 10a, By removing 20a in advance, the electric connection between the split housings 10 and 20 is made. The protrusion 11b and the fitting hole 23a are fitted to each other, so that the insulating coating 10 is formed.
The insulating coatings 10a and 20a may be left as they are so long as they can break through the a and 20a and make the electrical connection between the two split housings 10 and 20.

The plurality of contact members 17 held over the receptacle holding groove 12 and the joint leg holding groove 14 are integrally held side by side in a row by an insert mold 18 made of resin or the like. Grooves 12,14
It is stored and held inside. Therefore, the vertical partition plate 11 has a notch for holding the insert mold 18.
11c is formed.

Further, on the side surface of the vertical partition plate 11, a convex portion 11a slightly protruding inward is formed at a position facing the leaf portion 17b of the contact member 17 housed in the holding groove. As shown in FIGS. 6 to 8, the convex portion 11a comes into contact with the leaf portion 17b when the contact member 17 is housed and held in the holding grooves 12 and 14. In this case, split housing 10
Since the insulating coating 10a of polyimide or the like is applied to the entire surface thereof, normally, even if the leaf portion 17b and the convex portion 11a come into contact with each other, the electric contact between the split housing 10 and each member 17 does not occur. However, some of the contact members 17 are connected to the ground side, and in the holding grooves 12 and 14 in which such ground contact members 17 are housed and held, the insulating coating 10a of the convex portion 11a is scraped off,
This part is tin-plated. For this reason, the leaf portion 17b of the ground contact member 17 has the split housing 1
The conductive material forming 0 is directly contacted, and the conductive material is connected to the ground side through the ground contact member 17. With this configuration, the split housing 10 is effectively connected to the ground, so that crosstalk between the contact members can be effectively blocked. In this way, the ground position can be arbitrarily selected and can be connected to any circuit.

(Effects of the Invention) As described above, according to the present invention, since each contact member can be housed and held separately in the holding groove of the split housing, crosstalk between adjacent contact members can be prevented. It is possible to prevent noise by blocking with the split housing.

[Brief description of drawings]

1 and 2 are a perspective view and a sectional view showing a housing of a multipolar shielded connector according to the present invention, FIG. 3 is a perspective view showing a lowermost split housing constituting the above housing, and FIG. FIG. 5 is a perspective view showing a state where a contact member is attached to the lowermost split housing, FIG. 5 is a perspective view showing a protruding portion of the split housing, and FIG. 6, FIG. 7 and FIG. Further, a plan sectional view, a front sectional view and a side sectional view showing the lowermost split housing, and FIG. 9 are perspective views showing a conventional multipolar connector. 10 to 60 ...... Split housing 11 to 61 ...... Vertical partition plate, 11a ...... Convex part 11b ...... Protrusion, 12 to 62 ...... Receptacle holding groove 13 to 23 ...... Board, 14 to 64 ...... Joint leg holding groove 17 …… Contact member, 80 …… Cover housing

Claims (2)

[Claims] 1. A contact member having a connecting portion connectable to a mating terminal at one end and a joining leg joined to a printed wiring board or the like at the other end, and a plurality of the contact members arranged in a line and A housing that holds a plurality of rows of contact members arranged in a row, and the housing is composed of a plurality of divided housings divided for each row, and each of the divided housings is coated with an electrically conductive material body with an insulating material. And the electrically conductive material body is electrically connected to the ground, and each of the split housings has a plurality of holding grooves arranged in a line for separating and holding the contact member. A multipolar shielded connector, characterized in that the split housings are stacked while the contact members are arranged in a row and held. 2. The conductive material body of the split housing is electrically connected to the ground through a contact member connected to the ground among the contact members held in the holding groove. The multipolar connector according to claim 1.