JP2001015218A - Coupling part structure of shield connector and receptacle connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To offer a coupling part structure of a shield connector and receptacle connector capable of preventing a spring piece for grounding from breakage. SOLUTION: An electroconductive panel E having an opening K penetrating a connector 11 and fixed to the open end of a shroud 13 of a receptacle connector U to accept fit-in of a connector 11 is installed between the connector 11 and the shroud 13, and a shield shell 21 and shield case 23B are provided on the outer wall of a connector housing and the inner wall of the shroud 13. The periphery of a cable 14 in the connector 11 is sealed by the shield case 23B and shield shell 21, and the shroud 13 is furnished internally with a contacting spring 22 to make resilient contact with the shield case 23B and shield shell 21, wherein the end of the shield case 23B located on the shroud side 13 is extended, where a grounding spring 25 is installed which makes resilient contact on the back of the panel E.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure between a shield connector and a receiving connector, and more particularly, to a joint structure between a shield connector and a receiving connector which can reliably ground a shield layer of a cable. .

[0002]

2. Description of the Related Art In recent years, as transmission signals in electronic devices have become faster and higher in frequency, there has been an increasing need to take sufficient measures against electromagnetic wave EMI (hereinafter referred to as EMI) for connectors used therein. In particular, in cable connectors used to connect shielded cables to circuit boards,
Since unnecessary electromagnetic radiation can be suppressed by grounding the shield layer of the shielded cable with low impedance via the shield part of the cable connector, the structure of the shield part of the cable connector and the mounting structure of the cable connector around the shield part Is the point of countermeasures. This example will be described with reference to FIGS.
Indicates a connector, and the connector 1 includes a cable 4 covered with a shield shell 3 in a cover 2. 5
Denotes a panel connector, and the panel connector 5 is a member having a U-shaped cross section provided on the back side of the conductive panel 6,
A contact pin 7 is protruded inside.

In the panel connector 5, the connector 1
Is inserted, the contact pins 7 are inserted into the contacts 8 of the connector 1, and the cable 4 is connected to a circuit (not shown). Here, the shield shell 3 is provided with a spring piece 9 extending from the front end of the cover 2 so that the connector 1
The shield piece 3 can be grounded to the conductive panel 6 while the ground pressure is secured by the spring piece 9 by contacting the spring piece 9 with the conductive panel 6 in a state where is inserted into the panel connector 5. . A lock device 10 that locks to the panel connector 5 is attached to one side wall of the cover 2. This structure is disclosed in JP-A-7-320816.

[0004]

However, in the above-mentioned prior art, since the spring piece 9 is provided at the front end in the insertion direction of the connector 1, it is easy for the spring piece 9 to abut another part during the insertion work. In addition, there is a problem that damage or deformation may occur. In particular, when the connector 1 is inserted, the spring piece 9 comes into contact with the periphery of the opening provided in the conductive panel 6.
Since the work must be performed carefully so as not to deform the mounting, there is a problem that the mounting work takes time.

On the side where the lock device 10 is provided, there is a portion where the spring piece 9 cannot be disposed in order to secure a place for disposing the lock device 10, and for example, the connector 1 is downsized. Under the current situation where the locking device 10 cannot be provided on both sides, there is a problem that it is difficult to balance the ground pressure and secure an appropriate ground pressure. Therefore, the present invention provides a joint structure of a cable connector and a receiving-side connector in which a connector can be securely attached even when mounted at high density without breakage of a spring piece for grounding or the like. Is what you do.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the invention described in claim 1 is a connector provided with a housing for holding a cable, and a cable attached to a circuit board for receiving the housing. A receiving connector for conducting to the circuit board is provided. The receiving connector has a shroud and a male contact in the shroud, and an opening is penetrated by the connector between the connector and the shroud, and an opening of the shroud is provided. A conductive panel fixed to the end is provided, a shield member connected to the shield layer of the cable is provided on the outer wall of the housing, a shield member is provided on the inner wall of the shroud, and both shields are provided in a state where the connector is inserted into the shroud. A member is configured so that the periphery of the cable can be shielded, and one of them is the other in the shroud. A contact spring that elastically contacts the two shield members is provided, an end of the shield member provided on the shroud side is extended, and a ground spring that elastically contacts the back side of the conductive panel is provided on the extended portion. And
With this configuration, when the connector is inserted into the shroud of the receiving connector, the shield member of the connector and the shielding member of the receiving connector conduct through the contact spring, and the shield member of the receiving connector is grounded. Since the spring is in elastic contact with the conductive panel, the shield layer around the cable can be grounded to the conductive panel.

According to a second aspect of the present invention, the contact spring is provided on an outer wall of a shell-shaped shield member that covers a housing of the connector, and the contact spring is provided on the inner wall of the shroud when the connector is inserted into the shroud. Is characterized in that it is configured to be able to contact a case-shaped shield member provided in the device. With this configuration, it is possible to reliably conduct the two shield members through the contact spring provided on the connector side.

According to the third aspect of the invention, the contact spring is provided on a case-like shield member provided on the inner wall of the shroud, and the contact spring covers the housing in a state where the connector is inserted into the shroud. It is characterized in that it is configured to be able to contact the outer wall of the shell-shaped shield member. With this configuration, it is possible to reliably conduct the two shield members through the contact spring provided on the shroud-side shield member.

According to a fourth aspect of the present invention, the shield member provided on the shroud side is a plate-shaped shield plate, and the shield plate and the connector-side shield member are connected to each other by the shield plate or the connector-side shield member. Wherein the contact spring is provided so as to be conductive. With this configuration, it is possible to simplify the shield member.

The invention described in claim 5 is characterized in that a ground spring elastically contacting the conductive panel is provided on at least one side of an opening end of the shroud. With this configuration, grounding is possible with a minimum grounding spring. The invention described in claim 6 is characterized in that a lock member is provided between the connector and the shroud of the receiving connector, the lock member fixing the connector and the shroud when the connectors are inserted into the shroud. With this configuration, the connection between the connector and the receiving-side connector can be ensured.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 to FIG. 3 show a first embodiment of the present invention, which is applied to, for example, a joint structure of a connector used in a telephone exchange and a receiving connector. In the figure, reference numeral 11 denotes a connector.
1 is inserted into a shroud 13 attached to a circuit board 12 via a conductive panel E provided for installation. As shown in FIG. 2, the connector 11 has a cable 14 held by a cover 15 and a cover 1.
A housing 17 for holding a wire 16 is provided at the end of the wire 5.

The housing 17 is provided with a contact (not shown) for receiving the male contact 20 projecting into the shroud 13 of the receiving connector U and for conducting the cable 14 with the circuit board 12. The housing 17 is formed in a rectangular shape, and a shield shell (shield member) 21 connected to the shield shell 18 of the cable 14 is provided on an outer wall of the housing 17.
Is provided so as to cover the whole. Note that the shield shell 21 may be partially covered. The shield shell 21 of the housing 17 is provided with a plurality of contact springs 22 on one side and on the other side opposite to the front end, for example, by cutting and raising. The contact spring 22 elastically contacts a later-described shield case (shield member) 23B of the shroud 13 with the connector 11 inserted into the shroud 13 to conduct the two.
The cable 14 is shielded by the shield layer 19.
The inner wire 16 is shielded. Reference numeral 18 denotes a shield shell.

A shield case 23B is mounted on the shroud 13 of the receiving connector U that receives the connector 11. As shown in FIG. 3, the shield case 23 </ b> B is formed in a rectangular and cylindrical shape, and is detachably inserted into the shroud 13 so as to cover the inner wall of the shroud 13. At the end of the shield case 23B on the circuit board 12 side, locking pieces 24 to be inserted into the slits S of the bottom wall 13A of the shroud 13 are formed on one side wall and the other side wall facing each other at three places. ing. The shield case 23B has an end on the connector 11 side, and a grounding spring which is interposed between the opening end of the shroud 13 and the conductive panel E at an extended portion thereof and elastically contacts the periphery of the opening K of the conductive panel E. 25 are provided at three places on the one side wall and the other side wall, respectively.

Here, a portion of the opening end of the shroud 13 corresponding to the grounding spring 25 is provided with the grounding spring 2.
A notch 13C is provided for receiving the elastic member 5 so as to reduce the gap between the open end of the shroud 13 and the conductive panel E while providing the elastic force of the ground spring 25. The grounding spring 25 is, as shown in FIG.
Although it is formed to extend in the horizontal direction from the side wall of 3B to the outside and to be curved inward into a U-shape, the shape is not limited to such a shape. For example, a shape as shown in FIG. But it is good. Further, the ground spring 25 may be provided only on one side wall of the shroud 13. The grounding spring 25 is formed to have a size that can be substantially accommodated in the thickness of the shroud 13 so as not to interfere between the adjacent shrouds 13.

The connector 11 and the shroud 1
3, a conductive panel E having an opening K penetrated by the connector 11 is provided. The conductive panel E is supported by a unit surrounding the circuit board 12 and the like.
The shield shell 21 on the side and the shield case 23B on the shroud 13 side are grounded. 12A indicates a through hole.

According to the above embodiment, when the connector 11 is inserted into the shroud 13 through the opening K of the conductive panel E, the shield shell 21 on the connector 11 side and the shield case 23B on the shroud 13 side are contacted by the contact spring 22. Since the electrical conduction is provided in the shroud 13, the shield layer 19 of the cable 14 can be reliably grounded to the conductive panel E elastically contacted by the ground spring 25 provided in the shield case 23B. When the connector 11 is inserted, if the connector 11 is inserted into the opening K of the conductive panel E, the connector 11 can be reliably inserted into a predetermined position of the shroud 13. Here, the ground spring 2
Since the connector 5 is disposed on the back side of the conductive panel E, the connector 5 does not deform or break when the connector 11 is inserted into the shroud 13 unlike the related art provided at the tip of the connector 11. Of course, connect the connector 11 to the shroud 1
In the state of being inserted in 3, the shield shell 21 and the shield case 23B can reliably block the electromagnetic waves that try to enter the wire 16 from outside and the electromagnetic waves that exit from the wire 16.

When the connector 11, that is, the housing 17 is inserted into the shroud 13 by the contact spring 22 in a state of being inserted into the shroud 13, the contact spring 2
2 ensures that no continuity failure occurs, and low impedance and reliable EMI countermeasures can be taken. At this time, since the housing 17 is pressed from both sides by the contact spring 22, even if there is some wobble, poor conduction does not occur at this portion. Of course, the conductive panel E fixed to the circuit board 12 or the shroud 13 can reliably ensure the elastic contact state of the ground spring 25, so that a ground failure does not occur here.

Since the contact spring 22 is located inside the shroud 13 and the grounding spring 25 does not project laterally from the outer wall of the shroud 13, the male contact 20 can be received by providing a receiving hole in the shroud 13. So,
Even if the shrouds 13 are mounted at high density in the vertical direction, they do not interfere with each other. In addition, a structure in which the male contact 20 is implanted in advance in the circuit board 12 and the shroud 13 to which the shield case 23B is attached can be adopted to the male contact 20 can be adopted. May be provided on the shield case 23B side.

Next, a second embodiment will be described with reference to FIGS. This embodiment is similar to the connector 11 of the first embodiment.
And the shroud 13 are locked by a lock member 28. Here, FIG. 5 shows a case where two shrouds 13 are arranged. The lock member 28 is an arm 2 whose center is supported by the cover 15 of the connector 11.
9, a pressing portion 30 is provided at an end of the arm 29 on the connector 11 side, and a locking claw 31 is provided on the shroud 13 side of the arm 29.

On the other hand, the locking claws 31 are attached to the shroud 13.
The hole 32 is provided in a receiving portion 33 for receiving the arm 29. here,
The relationship between the locking claw 31 and the hole 32 may be reversed. Also,
The receiving portion 33 fits inside the outer wall of the shroud 13 in a state where the locking claw 31 is locked in the hole 32. In the adjacent shroud 13, a recess 34 for escape is provided in a portion facing the receiving portion 33 in order to secure an open / close range of the locking claw 31. In the opening K of the conductive panel E, a notch K1 for escape of the lock member 28 is formed. Further, the shield case 23B mounted in the shroud 13 is
The grounding spring 25 on the side where is provided is cut off.
Since the other configuration is the same as that of the first embodiment, the same portions are denoted by the same reference numerals and description thereof will be omitted.

Therefore, according to the above embodiment, the connector 11 is connected to the shroud 1 through the opening K of the conductive panel E.
If the locking claw 31 is locked in the hole 32 using the elastic force of the arm 29 after the insertion into the connector 3, the connector 11 can be securely locked to the shroud 13. In this locked state, since the lock member 28 is set inside the outer wall of the shroud 13, the lock member 28 does not interfere with the adjacent shroud 13. The adjacent shroud 13 has the receiving portion 3
3 is provided with a recess 34 for escape in order to secure the open / close range of the locking claw 31 at a position facing the locking claw 31.
It does not interfere with the opening and closing operations of the. Although the example in which the contact spring 22 is provided on the shield shell 21 side is shown, the present invention can be applied to a structure in which the contact spring 22 is provided on the shield case 23B side.

Further, grounding can be reliably performed by the grounding spring 25 disposed on the back side of the conductive panel E. Here, the grounding spring 25 is provided only on one side, but the conductive panel E is securely fixed to the shroud 13 or the circuit board 12, so that the conductive panel E is not affected by the insertion work of the connector 11, and the insertion work is not performed. There is no occurrence of poor grounding caused by this. In addition, when the connector 11 is inserted, the contact spring 22 and the ground spring 25 are not deformed and damaged. Then, even when the shroud 13 is mounted at high density in the upper, lower, left and right directions, the connector 11 can be securely attached. Even at this time, the lock member 28 does not interfere.

FIG. 6 shows a shield plate 35B which is a main part of the third embodiment. In each of the above embodiments, the shield case 23B is provided on the shroud 13 side.
However, a pair of plate-shaped shield plates (shield members) 35B can be provided instead. The locking pieces 24 are provided at three locations on one end of the shield plate 35B, and the ground spring 25 of the above embodiment is provided on the other end. Further, as shown in FIG. 7, the shape of the ground spring 25 may be raised obliquely from the shield plate 35B, and the ground portion may be formed in an arc shape.
Incidentally, only one shield plate 35B may be provided. In this case, it is necessary to arrange the shield shell 21 on the side where the contact spring 22 is provided.

Therefore, in this embodiment, in addition to the effects of the above-described embodiment, the use of the shield plate 35B makes it possible to simplify the structure and reduce the cost as compared with the shield case. Even if the shield case 23B does not have a case shape, as long as the shield plate 35B and the shield case 23B can cover the wires 16 of the cable 14, there is no adverse effect on the shield effect.

Next, FIGS. 8 and 9 show another embodiment in which the shroud 13 is attached in each of the above embodiments. In this embodiment, the insertion hole 13D formed in the bottom wall 13A of the shroud 13 is formed in a size that allows the male contact 20 to be loosely inserted with a margin. The insertion hole 13D is expanded on the side for receiving the male contact 20, and a boss portion 40 is provided at a portion opened in the shroud 13, and the inner diameter of the boss portion 40 is deformed when the shield case 23B is inserted as shown in FIG. Insert hole 13
It is smaller than the general part of D.

On the other hand, a bottom wall 23C is formed in the shield case 23B mounted on the shroud 13. The bottom wall 23C has a hole 41 for receiving the boss portion 40. For example, when the male contact 20 is inserted into the insertion hole 13D with the boss portion 40 set in the hole 41,
The outer edge of the boss 40 expands, and the shield case 23B, the shroud 13, and the male contact 20 are integrally fixed. The bottom wall 23C is formed by folding a metal plate so as to be double and thick. Reference numeral 24 denotes a locking piece.

Therefore, if this structure is adopted in each of the above embodiments, the shield case 23B, the shroud 13, and the male contact 20 can be integrally fixed, so that the number of mounting steps can be reduced. In the above description, the shield case 23B is described as an example. However, if a bottom wall is provided on the shield plate 35B of the above embodiment, the present invention can be applied to the shield plate 35B.

Here, the shroud 13 in the above-described embodiment can be used in a place where the conductive panel E is provided or a place where the conductive panel E is not provided, and the shield case 23B can be selectively mounted in the shroud 13. It has been. Therefore, when the conductive panel E is installed in a place where the conductive panel E is installed, a shield case 23B of a type that is grounded is attached to the conductive panel E, and this is fixed to the circuit board 12 so that a place where the conductive panel E is not installed is provided. In the case of mounting on a circuit board, a shield case of a type grounded to the circuit board 12 is mounted, and this is mounted on the circuit board 12. As a result, there is an effect that the shroud 13 can be shared and used simply by changing the shield member regardless of the presence or absence of the conductive panel E. Further, the shield case 23B is attached by a simple operation of inserting the locking piece 24 into the slit S of the bottom wall 13A of the shroud 13.

[0029]

As described above, according to the first to third aspects of the present invention, when the connector is inserted into the shroud of the receiving connector, the shield member on the connector side and the shield of the receiving connector are shielded. Since the member is electrically connected via the contact spring and the grounding spring of the shield member of the receiving connector is in elastic contact with the conductive panel, the shield layer around the cable can be grounded to the conductive panel. Therefore, there is an effect that EMI can be reliably prevented. Further, since the grounding spring is elastically contacted on the back side of the conductive panel, it is not exposed to the outside, so that there is an effect that no deformation or breakage occurs when the connector is inserted.

According to the second aspect of the present invention, since the contact spring can be arranged so as to avoid the front end of the connector, the contact spring is not damaged during the connection work of the connector. effective. According to the third aspect of the present invention, since the contact spring is not provided on the connector side, there is an effect that the contact spring does not come into contact with the connector and is not damaged when the connector is inserted.

According to the invention described in claim 4, in addition to the above effects, there is an effect that the cost can be reduced by simplifying the structure of the shield member. According to the fifth aspect of the present invention, in addition to the above-described effects, since the grounding can be performed with a minimum grounding spring, there is an effect that the cost can be reduced by simplifying the structure. At this time, since the conductive panel is attached in advance before inserting the connector, even if the grounding spring is on only one side, it does not affect the grounding via the shield member on the shroud side, and a grounding fault is generated. There is an effect that it does not occur.

According to the sixth aspect of the present invention, since the connection between the connector and the receiving connector can be secured, the connector can be prevented from coming off from the receiving connector when the connector is inserted, and reliability can be reduced. There is an effect that can be increased.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIGS. 2A and 2B are views showing an assembled state of the first embodiment of the present invention, wherein FIG. 2A is a sectional view taken along line AA of FIG.
(B) is a plan view.

FIG. 3 is a perspective view of a main part of the first embodiment of the present invention.

FIG. 4 is a perspective view corresponding to FIG. 1 of a second embodiment of the present invention.

FIG. 5 is a sectional view of a second embodiment of the present invention.

FIG. 6 is an explanatory diagram of a third embodiment of the present invention;
(A) is a front view, (b) is a plan view, and (c) is a side view.

FIGS. 7A and 7B are explanatory views showing another aspect of the third embodiment of the present invention, wherein FIG. 7A is a front view, FIG. 7B is a plan view, and FIG.
Is a side view.

FIG. 8 is an exploded cross-sectional view of another embodiment of the present invention.

FIG. 9 is an enlarged view showing a fixed state of FIG. 8;

FIG. 10 is a cross-sectional view showing a mounting state according to the related art.

FIG. 11 is a perspective view of a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Connector 12 Circuit board 13 Shroud 14 Cable 17 Housing 19 Shield layer 21 Shield shell (Shield member) 22 Contact spring 23B Shield case (Shield member) 25 Ground spring 35B Shield plate (Shield member) E Conductive panel K Opening U Receiving Side connector

Claims (6)

[Claims] 1. A connector having a housing for holding a cable, and a receiving connector attached to a circuit board for receiving the housing and conducting the cable to the circuit board, the receiving connector being provided in the shroud and the shroud. A conductive panel having a male contact and having an opening penetrating through the connector and fixed to an open end of the shroud is provided between the connector and the shroud, and a cable shield is provided on an outer wall of the housing. A shield member connected to the layer is provided and a shield member is provided on the inner wall of the shroud, and the shield is configured so that the periphery of the cable can be shielded by both shield members in a state where the connector is inserted into the shroud. A contact spring is provided to resiliently contact the two shield members, and is set on the shroud side. A joint structure between a shield connector and a receiving connector, wherein an end portion of the shielded member is extended, and a ground spring is provided on the extended portion so as to elastically contact the back side of the conductive panel. 2. A case-like case wherein the contact spring is provided on an outer wall of a shell-shaped shield member covering a housing of the connector, and the contact spring is provided on an inner wall of the shroud in a state where the connector is inserted into the shroud. The joint structure of a shielded connector and a receiving connector according to claim 1, wherein the shielded connector is configured to be able to contact the shielded member. 3. An outer wall of a shell-shaped shield member, wherein said contact spring covers a housing when said connector is inserted into said shroud, said contact spring being provided on a case-shaped shield member provided on an inner wall of said shroud. 2. The structure of claim 1, wherein the shield connector and the receiving connector are connected to each other. 4. The shield member provided on the shroud side is a plate-shaped shield plate, and the shield plate and the connector-side shield member are provided on one of the shield plate and the connector-side shield member. 2. The structure according to claim 1, wherein the shield spring and the receiving connector are connected to each other by the contact spring. 5. The shroud according to claim 1, wherein a grounding spring elastically contacting the conductive panel is provided on at least one side of an opening end of the shroud. A joint structure between the shielded connector and the receiving connector according to any one of the above. 6. A lock member according to claim 1, wherein a lock member is provided between the connector and the shroud of the receiving connector so as to fix the connector and the shroud. Connection structure of shield connector and receiving connector.