JPH02864Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a connector for a shielded cable.

[Background technology]

When connecting a signal cable with a shielded jacket to the device housing, as shown in Fig. 1, connect the device side connector 1 that is directly attached to the device housing and the cable side connector 3 that is directly connected to the signal cable 2. It is common to do this together.

In this case, the cable-side connector 3 includes a terminal mounting member (not shown) provided with a signal line connection terminal connected to the signal line of the signal cable 2, and a shielding conductive member fitted externally to the terminal mounting member. It consists of a case 4, and the device side connector 1
A terminal mounting member 6 is provided with signal line connecting terminals 5 that make elastic contact with the signal line connecting terminals of the cable side connector 3 in a one-to-one correspondence, and a conductive shielding member that is fitted onto the terminal mounting member 6. It consists of gender case 7.

In the cable side connector 3, the exposed portion of the shield jacket of the signal cable 2 is clamped by a pair of cable fixing fittings 8, 8 whose one end is connected to the shield conductive case 4, and the shield is removed from the shield. conductivity between the cover and the conductive case 4 for shielding,
Further, in the device side connector 1, a housing mounting piece 7a is provided on a part of the circumferential surface of the shielding conductive case 7.
7a is provided protrudingly, and this housing mounting piece 7a is screwed to the metal equipment housing to secure the device to the equipment housing, and at the same time, the conductive case for shielding is attached via the housing mounting piece 7a. 7 is electrically connected to the device housing, and when connecting the cable side connector 3 to the device side connector 1, the engaged claw piece 4 protruding from the conductive case 4 of the cable side connector 3
By engaging the engagement spring locks 9, 9 attached to the housing mounting pieces 7a, 7a of the device side connector 1 with respect to the cable fixing fittings 8 and the conductive case 4 for shielding. , engaged claw piece 4
a, the shield jacket of the signal cable 2 and the device housing are electrically connected through the path of the engagement spring lock 9 and the housing mounting piece 7a.

However, in such a configuration, when the device-side connector 1 is attached to the device case, the conductive portion of the shielding conductive case 7 of the device-side connector 1 to the device case 10 is connected to the device case 10, as shown in FIG. Since the contact area between these pieces is reduced, the high-frequency impedance of the shield system at the connector part increases, and high-frequency noise that is transferred to the shield jacket of the signal cable 2 is reduced. cannot be effectively removed.

Further, there is a gap G between the connector mounting hole 10a formed in the device housing 10 and the device side connector 1.
This has the drawback that radiation noise enters through this gap G, further reducing the noise resistance and allowing dust to enter the device.

[Purpose of invention]

The purpose of this invention is to provide a cable connector that is attached to the device housing side, has a high shielding effect, has excellent noise resistance, and is easy to manufacture.

[Disclosure of invention]

The cable connector of this invention includes a rectangular terminal mounting member to which a plurality of signal line connection terminals are fixed, and a housing mounting piece protruding from a part of the circumferential surface, which is a conductive shield covering the terminal mounting member. the housing mounting piece is inserted into a connector mounting hole formed in the device housing, and the housing mounting piece is fixed to the surface of the device housing so that it can be freely attached to and detached from the cable side connector directly connected to the signal cable. In the cable connector which is fitted to connect the signal line of the signal cable and the signal line connection terminal, the shielding conductive case is inserted into the connector mounting hole of the terminal mounting member. Divided into a lower case half member to cover and an upper case half member to cover the non-insertion side part, bend diagonally to the outside of the lower case half member at both edges along the longitudinal direction of the non-insertion side of the upper case half member. The present invention is characterized in that a plurality of electrically conductive elastic housing contacts are arranged in the longitudinal direction, and the outer surface thereof is elastically pressed against the inner circumferential surface of the opening of the connector mounting hole.

According to the configuration of this invention, a conductive elastic case contactor is provided in the shielding conductive case, and this elastic case contactor extends diagonally outward and is pressed into contact with the inner peripheral surface of the opening of the connector mounting hole of the device case. Because it is designed to have an elastic contact, elastic contact can be obtained. Moreover, since the elastic housing contactor is divided into multiple pieces arranged in the longitudinal direction of the conductive case for shielding, it is easy to obtain elasticity for press-fitting, and even if the precision of each part is poor, it is possible to Reliable contact can be obtained with the elastic housing contactor. Also, since it is in contact with the inner circumferential surface of the connector mounting hole, reliable contact can be obtained. Since the contact is reliable in this way, the high frequency impedance can be reduced, the high frequency noise that adheres to the shield jacket of the signal cable can be effectively suppressed, and the noise resistance can be improved.

In addition, since the conductive case for shielding is divided into an upper case half member and a lower case half member, and elastic housing contacts are formed on the edges of the upper case half member, for example, the conductive case for shielding is integrated. Unlike the case where the elastic housing contactor is formed of a cut and raised piece or the like, manufacturing is simple, and no cut and raised hole is formed, so that the terminal mounting member can be covered without any gaps. Furthermore, manufacturing is simple because high precision is not required due to the elastic contact of the elastic housing contactor.

Embodiment An embodiment of this invention is shown in FIGS. 3 and 4. That is, in this cable connector, in the device-side connector 1' of the conventional example, the shielding conductive case 7' is a case lower half member that covers the insertion side portion of the terminal mounting member 6' into the connector mounting hole 10a. 7'b and an upper case half member 7'c that covers the non-insertion side. A plurality of conductive elastic housing contacts 11' are arranged in the longitudinal direction and extend obliquely to the outside, and the outer surface is elastically pressed against the inner peripheral surface of the opening of the connector mounting hole 10a. shall be.

A protruding piece extending to both ends of the lower case half member 7'b and a protruding piece similarly extending to both ends of the upper case half member 7'c are provided with 12 screw insertion holes formed in these protruding pieces. These two members are integrated by crimping and overlapping, and the overlapping portion of the protruding pieces forms the housing mounting piece 7'a.

In FIG. 3, 5' is a plurality of signal connection terminals arranged, 6' is a terminal mounting member to which the signal line connection terminals 5' are fixed, and 9' is an engagement spring lock for engaging with the cable side connector.

According to this configuration, the shielding conductive case 7'
A conductive elastic housing contact 11' is provided in the device housing 10, and this elastic housing contact 11' extends diagonally outward and comes into pressure contact with the inner peripheral surface of the opening of the connector mounting hole 10a of the device housing 10. Provides elastic contact. Moreover, since the elastic housing contactor 11' is divided into a plurality of pieces arranged in the longitudinal direction of the shielding conductive case 7', it is easy to obtain elasticity for press-fitting, and even if the precision of each part is poor. , a reliable contact can be obtained with any of the elastic housing contacts 11'. Also, since it is in contact with the inner circumferential surface of the connector mounting hole 10a, reliable contact can be obtained. Since the contact is reliable in this way, high frequency impedance can be reduced.

The elastic housing contactor 11' can be provided over almost the entire circumferential surface of the shielding conductive case 7' except for the protruding portion of the housing mounting piece 7'a, and can be provided over almost the entire circumferential surface of the shielding conductive case 7', thereby preventing contact with the device housing 10. The section can be extended not only to the housing attachment piece 7'a but also to the elastic housing contact 11'. Therefore, the conductive case 7' for shielding has a contact part with the device housing 10 over the entire circumference, and in addition to making elastic contact as described above, the shielding system of the connector part It is possible to significantly reduce high frequency impedance, effectively suppress high frequency noise that adheres to the shield jacket of the signal cable, and improve noise resistance.

Furthermore, since the gap between the connector mounting hole 10a of the device housing 10 and the connector 1' is blocked by the elastic housing contact 11', radiation noise can be prevented from entering the device through this gap. It is possible to prevent the intrusion of dust and further improve noise resistance.

Further, the shielding conductive case 7' is divided into an upper case half member 7'c and a lower case half member 7'b, and an elastic housing contact 11' is attached to the edge of the upper case half member 7'c. For example, unlike the case where the conductive case 7' for shielding is integrated and the elastic housing contact 11' is formed with a cut-and-raised piece or the like,
It is easy to manufacture, and the terminal mounting member 6' can be covered without any gaps without forming cut-and-raised pieces, thereby improving shielding performance. Elastic housing contact 1
Manufacturing is also simple because high precision is not required due to the elastic contact of 1'.

[Effect of idea]

The cable connector of this invention has a conductive elastic housing contact in the shielding conductive case, and this elastic housing contact extends diagonally outward and is pressed into contact with the inner peripheral surface of the opening of the connector mounting hole in the equipment housing. Because it is designed to have an elastic contact, elastic contact can be obtained. Moreover, since the elastic housing contactor is divided into multiple pieces arranged in the longitudinal direction of the conductive case for shielding, it is easy to obtain elasticity for press-fitting, and even if the precision of each part is poor, it is possible to Reliable contact can be obtained with the elastic housing contactor. Also, since it is in contact with the inner circumferential surface of the connector mounting hole, reliable contact can be obtained. Since the contact is reliable in this way, the high frequency impedance can be reduced, the high frequency noise that adheres to the shield jacket of the signal cable can be effectively suppressed, and the noise resistance can be improved.

In addition, since the conductive case for shielding is divided into an upper case half member and a lower case half member, and elastic housing contacts are formed on the edges of the upper case half member, for example, the conductive case for shielding is integrated. Unlike the case where the elastic housing contactor is formed of a cut and raised piece or the like, manufacturing is simple, and no cut and raised hole is formed, so that the terminal mounting member can be covered without any gaps. Furthermore, since high precision is not required due to the elastic contact of the remaining housing contactor, manufacturing is simple.

[Brief explanation of drawings]

Figure 1 is an exploded perspective view of the conventional example, Figure 2 is an explanatory diagram showing its arrangement in the device housing, Figures 3 and 4.
The figures are a front view and a cross-sectional view, respectively, showing an embodiment of this invention. 1...Connector, 5'...Signal line connection terminal,
6'... Terminal mounting member, 7'... Conductive case for shielding, 7'a... Housing mounting piece, 7'b... Lower half member of the case, 7'c... Upper half member of the case, 9... ...Engagement spring lock, 10...Device housing, 10a...Connector mounting hole, 11, 11'...Elastic housing contact, 1
2...Screw insertion hole.

Claims (1)

[Scope of utility model registration request] A device casing comprising a rectangular terminal mounting member to which a plurality of signal line connection terminals are fixed, and a shielding conductive case having a casing mounting piece protruding from a part of the circumferential surface and fitting onto the terminal mounting member. The housing mounting piece is inserted into a connector mounting hole formed in the body and fixed to the surface of the device housing, and is removably fitted to a cable-side connector directly connected to a signal cable. In the cable connector, the shielding conductive case is connected to the lower half of the case that covers the insertion side of the terminal mounting member into the connector mounting hole, and the non-insertion side. The case is divided into an upper case half member that covers the upper case half member, and the connector is bent obliquely to the outside of the case lower half member and extends on both edges along the longitudinal direction of the non-insertion side of the case upper half member, and the outer surface is attached to the connector. A cable connector characterized in that a plurality of conductive elastic housing contacts are arranged in the longitudinal direction and are arranged in the longitudinal direction to elastically press against the inner circumferential surface of the opening of the hole.