CN105745790B - Connector assembly - Google Patents

Abstract

A connector assembly (10, 20, 30, 40, 50) comprising a cable terminal (200) having a contact ring (210), an inner plug (400) having a contact section (440) and capable of ) on the moving outer plug (500). The contact section (440) can be clamped between the outer plug (500) and the contact ring (210).

Description

connector assembly

technical field

The present invention relates to a connector assembly according to claim 1 .

Background technique

Connector assemblies are known in the art for disconnecting electrical circuits carrying high currents and medium voltages between 1 kV and 70 kV during installation and use states. EP 0147979 B1 describes a connector assembly which allows disconnection of a circuit without moving the cable. It is known to provide contact assemblies having spring contacts that provide a separable electrical connection. Such contacts are expensive to manufacture to provide a reliable electrical connection over a longer life and a higher number of switching cycles. Mating metal parts often require surface plating, such as silver plating.

Contents of the invention

The object of the present invention is to provide a connector assembly. This object is achieved by a connector assembly according to claim 1 . Preferred embodiments are disclosed in the dependent claims.

A connector assembly according to the invention comprises: a cable terminal with a contact ring; an inner plug with a contact section; and an outer plug movable in a longitudinal direction. The contact section can be clamped between the outer plug and the contact ring. Advantageously, clamping the contact section of the inner plug between the outer plug and the contact ring ensures a defined contact pressure between the contact section of the inner plug and the contact ring of the cable terminal, which provides the cable terminal with a defined contact pressure. A defined and reliable electrical connection between the contact ring and the contact section of the inner plug.

In an embodiment of the connector assembly, the contact ring includes a first thread. The outer plug includes second threads mating with the first threads. The first thread of the contact ring and the thread of the outer plug allow screwing the outer plug into the contact ring of the cable terminal to move the outer plug in the longitudinal direction. Screwing the outer plug into the contact ring of the cable terminal thus allows the contact section of the inner plug to be clamped between the outer plug and the contact ring. Advantageously, this allows adjustment of the contact pressure between the contact section of the inner plug and the contact ring of the cable terminal.

In an embodiment of the connector assembly, the first thread is an internal thread and the second thread is an external thread. Advantageously, this allows screwing the second outer thread of the outer plug into the first inner thread of the contact ring of the cable terminal.

In an embodiment of the connector assembly, the outer plug includes a thrust surface. The contact ring includes a ring contact surface. The contact section includes an abutment surface oriented towards the thrust surface and a plug contact surface oriented towards the ring contact surface. Advantageously, the contact section of the inner plug is clamped between the outer plug and the contact ring of the cable terminal so that the plug contact surface of the contact section of the inner plug is pressed against the ring contact surface of the contact ring of the cable terminal to ensure the contact of the inner plug. A reliable electrical connection between the contact section and the contact ring of the cable terminal.

In an embodiment of the connector assembly, the abutment surface of the contact section of the inner plug comprises a ring shape. The abutment surfaces are thus rotationally symmetric, which allows arranging the inner plug in any angular orientation.

In an embodiment of the connector assembly, the abutment surface comprises the shape of a slotted ring. Advantageously, the groove reduces the total area of the abutment surface, thus increasing the pressure exerted by the thrust surface of the outer plug on the remainder of the abutment surface. This also increases the contact force exerted between the plug contact surface of the contact section of the inner plug and the ring contact surface of the contact ring of the cable terminal.

Moreover, the grooves provided in the abutment surface of the contact section of the inner plug increase the flexibility of the contact section of the inner plug, which allows the plug contact surface of the contact section of the inner plug to closely adapt to the contact ring of the cable terminal. The shape of the ring contact surface is, for example, adapted to the surface roughness. Advantageously, this allows manufacturing tolerances to be equalized.

In an embodiment of the connector assembly, the plug contact surface and/or the ring contact surface comprises protrusions. The protrusion may eg comprise a plurality of ridges. The protrusion reduces the contact area between the plug contact surface of the contact section of the inner plug and the ring contact surface of the contact ring of the cable terminal and thus allows an increased contact pressure between the plug contact surface and the ring contact surface.

In an embodiment of the connector assembly, the plug contact surface and/or the ring contact surface comprises recesses corresponding to the protrusions. For example, the plug contact surface may include recesses and the ring contact surface may include corresponding protrusions. Alternatively, the plug contact surface may comprise protrusions and the ring contact surface may comprise corresponding recesses. It is also possible that both the plug contact surface and the ring contact surface are provided with mutually corresponding recesses and protrusions. Advantageously, the recess and the protrusion provide an area of the plug contact surface and the ring contact surface which is inclined with respect to the normal direction of the plug contact surface and the ring contact surface. This increases the size of the contact area between the plug contact surface and the ring contact surface and increases the contact pressure generated by a given force exerted by the outer plug on the contact section of the inner plug.

In an embodiment of the connector assembly, a conductive interim piece is disposed between the ring contact surface and the plug contact surface. The transition piece may eg comprise metal or be provided with an electrically conductive coating. The transition piece may be designed to increase the contact area between the ring contact surface and the plug contact surface or to increase the contact pressure between the ring contact surface and the plug contact surface. The transition piece can be rigid and stiff, or it can be flexible, such as a membrane, or elastic, such as a wave washer. The transition piece may also be used to smooth out imperfections and irregularities in the plug contact surface and/or ring contact surface. The transition piece may comprise a metal or metal alloy such as beryllium copper or another conductive material and/or may comprise a conductive coating such as silver plating.

In an embodiment of the connector assembly, the thrust surface and the abutment surface are at least partially inclined with respect to a direction perpendicular to the longitudinal direction. The thrust and abutment surfaces may be inclined at approximately positive or negative angles. The inclination of the thrust surface and the abutment surface advantageously increases the area of the thrust surface and the abutment surface and, for a given force exerted by the outer plug on the contact section of the inner plug, increases the distance between the thrust surface and the abutment surface. contact pressure.

In an embodiment of the connector assembly, the plug contact surface and the ring contact surface are at least partially inclined with respect to a direction perpendicular to the longitudinal direction. The plug contact surface and the ring contact surface may be inclined at approximately a positive or negative angle. The inclination of the plug contact surface and the ring contact surface advantageously increases the dimensions of the plug contact surface and the ring contact surface and may increase the contact between the plug contact surface and the contact section of the inner plug caused by a given force exerted by the outer plug on the contact section of the inner plug. Contact pressure between ring contact surfaces.

In an embodiment of the connector assembly, the connector assembly includes conductors. The inner plug includes an inner contact interface for contacting the conductor. Advantageously, the inner plug may provide electrical connection between the conductors of the connector assembly and the cable terminals of the connector assembly.

In an embodiment of the connector assembly, the connector assembly includes a housing. A cable terminal, an inner plug and an outer plug are at least partially arranged in the housing. The conductor can also be arranged at least partially in the housing. The housing may eg be manufactured by a molding process. The housing can provide electrical insulation.

In an embodiment of the connector assembly, the housing comprises an elastomeric material, in particular silicone or EPDM, or a thermoplastic elastomer. Advantageously, this allows simple and cost-effective manufacture of the connector assembly.

In an embodiment of the connector assembly, the cable terminals and conductors are molded-in in the housing. Advantageously, the connector assembly allows the cable terminals to be electrically connected and disconnected from the conductors without moving the cable terminals or the conductors.

Description of drawings

The invention will now be described in more detail with reference to the accompanying drawings, in which:

Figure 1 shows a schematic cross-sectional view of a portion of a first connector assembly;

Figure 2 shows a schematic cross-sectional view of a portion of a second connector assembly;

Figure 3 shows a schematic cross-sectional view of a portion of a third connector assembly;

Figure 4 shows a schematic cross-sectional view of a portion of a fourth connector assembly;

Figure 5 shows a schematic cross-sectional view of a portion of a fifth connector assembly;

Figure 6 shows a schematic top view of the inner plug; and

FIG. 7 shows a schematic top view of an inner plug with grooves.

Detailed ways

FIG. 1 shows a schematic cross-sectional view of a portion of a first connector assembly 10 . The first connector assembly 10 may be used to provide a separable electrical connection in an electrical network. The grid may eg be a medium voltage grid with a voltage between 1 kV and 70 kV. The grid can be, for example, a 24 kV voltage grid or a 36/42 kV voltage grid. The first connector assembly 10 may for example be arranged in a box above ground or in an underground unit accessed from above ground.

The first connector assembly 10 includes a cable terminal 200 . The cable termination 200 comprises a conductive material, eg copper. The cable terminal 200 extends substantially parallel to the lateral direction 12 . The outer end of the cable terminal 200 - which is not shown in the partial depiction of Fig. 1 - may be designed for connection to a cable. The exterior of the cable terminal 200 can eg be connected to a cable using a suitable cable gland.

The first connector assembly 10 also includes a conductor 300 . The conductor 300 includes a conductive material. The conductor 300 is arranged substantially parallel to the lateral direction 12 . The conductor 300 is arranged below the cable terminal 200 and is spaced apart from the cable terminal 200 in a longitudinal direction 11 perpendicular to the lateral direction 12 .

The first connector assembly 10 is used to make and break electrical connection between the cable terminal 200 and the conductor 300 . The electrical connection between the cable terminal 200 and the conductor 300 can be established and interrupted without moving the cable terminal 200 and the conductor 300 . The electrical connection between the cable terminal 200 and the conductor 300 provided by the first connector assembly 10 may be interrupted eg for installation and use purposes.

The conductor 300 of the first connector assembly 10 can be connected to another cable terminal by means of another first connector assembly. In this case, the first connector assembly is used to provide an interruptible electrical connection between the cable terminals via the conductor 300 .

The first connector assembly 10 includes a housing 100 . The cable terminal 200 and the conductor 300 are at least partially arranged in the housing 100 . Housing 100 includes an electrically insulating material. The housing 100 may, for example, comprise an elastomeric material. The housing 100 may, for example, comprise an elastomeric material having a Shore A hardness of between 20 and 60. The housing 100 may eg comprise silicone or EPDM or may be made of TPE, a thermoplastic elastomer. Housing 100 may, for example, also include a conductive coating or a thicker outer conductive layer.

The case 100 may be manufactured using a molding process. The cable terminal 200 and the conductor 300 may already be overmolded during the manufacture of the housing 100 . Housing 100 may be integrally formed or constructed from more than one piece.

The cable terminal 200 may be partially enclosed in the first shield part 130 . In this case, the first shield part 130 is disposed between the cable terminal 200 and the housing 100 . The first shield part 130 may serve to shield an electromagnetic field caused by current flowing in the cable terminal 200 . The first shield 130 can also be used as a Faraday cage for eg stress grading. Similarly, the conductor 300 may be partially encapsulated in a second shield 140 partially covering the conductor 300 and disposed between the conductor 300 and the material of the housing 100 . The second shield part 140 may serve to shield an electromagnetic field caused by current flowing in the conductor 300 . The first shielding part 130 and the second shielding part 140 may be omitted.

The conductor 300 and the portion of the housing 100 accommodating the conductor 300 together form the bus bar 110 of the first connector assembly 10 . The bus bars 110 are arranged substantially parallel to the lateral direction 12 .

The first connector assembly 10 also includes a dome 120 extending in a longitudinal direction 11 arranged perpendicularly to the lateral direction 12 . The cap 120 includes a portion of the housing 100 accommodating the cable terminal 200 and a portion of the housing 100 disposed between the cable terminal 200 and the bus bar 110 .

The cable terminal 200 includes an inner end opposite to the outer end of the cable terminal 200 . The inner end of the cable terminal 200 is disposed inside the housing 100 . The inner end of the cable terminal 200 includes a contact ring 210 . The contact ring 210 includes an opening 240 . The opening 240 preferably comprises a circular shape with an axis arranged parallel to the longitudinal direction 11 . In the example shown in FIG. 1 , the contact ring 210 is closed around the opening 240 and an axis parallel to the longitudinal direction 11 .

The contact ring 210 includes a tubular portion 220 and a disk portion 230 . The disc 230 is arranged parallel to the longitudinal direction 11 . The opening 240 is arranged centrally in the disk 230 of the contact ring 210 of the cable terminal 200 . The tubular portion 220 of the contact ring 210 extends away from the conductor 300 in the longitudinal direction 11 from the outer circumference of the disc portion 230 . In the example shown in FIG. 1 , the tubular portion 220 and the disk portion 230 of the contact ring 210 are integrally formed.

The first connector assembly 10 includes an inner plug 400 for providing an electrical connection between the cable terminal 200 and the conductor 300 . The inner plug 400 includes a conductive material, such as metal. A portion of the inner plug 400 may be coated with or overmolded with an electrically insulating material. The inner plug 400 may be inserted into the housing 100 of the first connector assembly 10 to establish an electrical connection between the cable terminal 200 and the conductor 300 . The inner plug 400 can be removed from the housing 100 to interrupt the electrical connection between the cable terminal 200 and the conductor 300 .

The inner plug 400 includes an elongated portion 410 having an inner end 411 and an opposite outer end 412 . The elongate portion 410 may include a conical shape. When the inner plug 400 is arranged in the housing 100 of the first connector assembly 10 , the elongated portion 410 of the inner plug 400 is arranged parallel to the longitudinal direction 11 .

The inner end 411 of the elongated portion 410 of the inner plug 400 includes an inner contact interface 420 for providing an electrical connection between the inner plug 400 and the conductor 300 . In the example shown in FIG. 1 , the inner contact interface 420 includes a threaded boss 430 extending parallel to the longitudinal axis of the elongated portion 410 at the inner end 411 of the elongated portion 410 . The conductor 300 includes a contact interface 310 cooperating with an inner contact interface 420 . In the example depicted in FIG. 1 , the contact interface 310 of the conductor 300 includes a threaded hole 320 .

The inner contact interface 420 of the inner plug 400 may be mechanically and electrically connected to the contact interface 310 of the conductor 300 by screwing the threaded boss 430 of the inner plug 400 into the threaded hole 320 of the conductor 300 . This can be done by rotating the inner plug 400 about an axis parallel to the longitudinal direction 11 . This installation of the inner plug 400 can be performed from a distance using, for example, an operating rod about 1 m long.

When the inner plug 400 is installed in the housing 100 of the first connector 10 , the elongated portion 410 of the inner plug 400 extends through the opening 240 of the contact ring 210 of the cable terminal 200 . At the outer end 412 of the elongate part 410 of the inner plug 400 , the inner plug 400 comprises a contact section 440 . The contact section 440 serves to provide an electrical connection between the inner plug 400 and the contact ring 210 of the cable terminal 200 . The contact section 440 has a diameter which is larger than the diameter of the elongated part 410 of the inner plug 400 and which is larger than the diameter of the opening 240 of the contact ring 210 of the cable terminal 200 .

FIG. 6 shows a schematic plan view of the contact section 440 of the inner plug 400 . In the illustration of FIG. 6 , the contact section 440 of the inner plug 400 comprises a disc shape. On the side of the contact section 440 opposite to the elongated portion 410 of the inner plug 400 , the contact section 440 comprises an abutment surface 460 . In the illustration of Fig. 6, the abutment surface 460 comprises a disc shape.

FIG. 7 shows a schematic plan view of a modified embodiment of a contact section of an inner plug 400 . In the illustration of FIG. 7 , the contact section 440 is generally disc-shaped but includes a plurality of slots 452 extending radially from the outer periphery of the contact section 440 into the contact section 440 . In the example shown in FIG. 7 , contact section 440 includes four slots 452 . Each slot 452 spans an angle of approximately 45 degrees. However, slots 452 may span smaller or larger angles and different angles. Contact section 440 may include fewer or more than four slots 452 . Due to the grooves, the area of the abutment surface 460 in the embodiment of the contact section 440 shown in FIG. 7 is smaller than the area of the abutment surface of the embodiment of the contact section 440 shown in FIG. 6 .

Referring now again to FIG. 1 , the contact section 440 of the inner plug 400 includes a plug contact surface 450 opposite an abutment surface 460 . If the contact section 440 of the inner plug 400 is designed as in FIG. 6 , the plug contact surface 450 can be annular. If the contact section 440 of the inner plug 400 is designed as in the example shown in Fig. 7, the plug contact surface 450 comprises one or more sectors of a circular ring.

The disk portion 230 of the contact ring 210 of the cable terminal 200 comprises a ring contact surface 250 . The plug contact surface 450 of the contact section 440 of the inner plug 400 faces the ring contact surface 250 of the contact ring 210 of the cable terminal 200 .

When the inner plug 400 is installed in the housing 100 of the first connector assembly 10 and the inner contact interface 420 of the inner plug 400 is connected to the contact interface 310 and the inner end 411 of the conductor 300, the plug of the contact section 440 of the inner plug 400 The contact surface 450 is in contact with the ring contact surface 250 of the contact ring 210 of the cable terminal 200 . However, the pressure between the plug contact surface 450 of the inner plug 400 and the ring contact surface 250 of the cable terminal 200 may not be sufficient to provide a reliable electrical connection between the inner plug 400 and the cable terminal 200 . There may even be a small gap of up to 4 mm between the plug contact surface 450 of the inner plug 400 and the ring contact surface 250 of the cable terminal 200 .

The first connector assembly 10 includes the outer plug 500 installed after the inner plug 400 is installed. The outer plug 500 may include an electrically insulating material. The outer plug 500 includes an elongated portion 510 having an inner end 511 . The end portion 520 is provided at the inner end 511 of the elongated portion 510 of the outer plug 500 . End portion 520 preferably comprises a mechanically robust material, such as metal, ceramic material, or reinforced plastic.

End portion 520 includes thrust surface 540 . Thrust surface 540 may, for example, comprise a disc shape. When the outer plug 500 is arranged in the first connector assembly 10 , the thrust surface 540 is arranged perpendicular to the longitudinal direction 11 and faces the abutment surface 460 of the inner plug 400 .

The tubular part 220 of the contact ring 210 of the cable terminal 200 comprises a first thread 260 . In the example shown in FIG. 1 , the first thread 260 is an internal thread provided on the inner side of the tubular portion 220 of the contact ring 210 of the cable terminal 200 . The end 520 of the outer plug 500 includes a second thread 530 cooperating with the first thread 260 of the contact ring 210 of the cable terminal 200 . In the example shown in FIG. 1 , the second thread 530 is an external thread provided on the outer circumference of the end portion 520 .

The second thread 530 of the outer plug 500 can be screwed into the first thread 260 of the contact ring 210 of the cable terminal 200 . The procedure can be performed from a distance using, for example, a 1 m long joystick. Screwing the outer plug 500 into the tubular portion 220 of the contact ring 210 of the cable terminal 200 of the first connector assembly 10 moves the outer plug 500 in the longitudinal direction 11 such that the thrust surface 540 of the outer plug 500 faces towards the inner plug 400 The abutment surface 460 of the contact section 440 moves.

When the thrust surface 540 of the outer plug 500 abuts on the abutment surface 460 of the contact section 440 of the inner plug 400, the contact section 440 of the inner plug 400 is pressed towards the disc 230 of the contact ring 210 of the cable terminal 200, thereby This is so that the plug contact surface 450 of the contact section 440 of the inner plug 400 is pressed against the ring contact surface 250 of the contact ring 210 of the cable terminal 200 . Screwing the second thread 530 of the outer plug 500 further into the first thread 260 of the contact ring 210 of the cable terminal 200 allows the plug contact surface 450 of the contact section 440 of the inner plug 400 to contact the contact ring 210 of the cable terminal 200 A defined pressure is exerted between the ring contact surfaces 250 . The outer plug 500 can eg be screwed in the contact ring 210 of the cable terminal 200 until a torque of 20 Nm has been reached.

During installation of the outer plug 500 the housing 100 may undergo a minor elastic deformation when the plug contact surface 450 of the inner plug 400 approaches the contact ring 210 of the cable terminal 200 . Since the housing 100 preferably comprises an elastomeric material, this elastic deformation can have small forces and the overall movement of the contact section 440 of the inner plug 400 in the longitudinal direction 11 is typically less than 4 mm. The elongated portion 410 of the inner plug 400 may, for example, comprise a total length in the longitudinal direction of approximately 60 mm.

After installing the outer plug 500, the thrust surface 540 of the outer plug 500 is pressed against the abutment surface 460 of the contact section 440 of the inner plug 400, and the plug contact surface 450 of the contact section 440 of the inner plug 400 is thus pressed with a defined pressure. The ring contact surface 250 rests against the contact ring 210 of the cable terminal 200 . This pressure is sufficient to ensure a reliable electrical connection between the contact ring 210 of the cable terminal 200 and the contact section 440 of the inner plug 400 . The cable terminal 200 is thus electrically connected to the conductor 300 via the inner plug 400 . Over a lifetime of up to 40 years, currents of eg 400A, 630A or 1250A can be delivered.

If the contact section 440 of the inner plug 400 is designed as shown in the example of FIG. 6 , the inner plug 400 can be produced in a simple and cost-effective manner. If the contact section 440 of the inner plug 400 is designed as shown in the example of FIG. 7 , the contact section 440 may comprise increased elastic flexibility compared to the design of FIG. 6 . This enables the contact section 440 of the inner plug 400 to adapt to the unevenness of the thrust surface 540 of the outer plug 500 and the ring contact surface 250 of the cable terminal 200 and can ensure improved contact in the case of such unevenness. and increased contact pressure. Furthermore, in the design of FIG. 7 , the plug contact surface 450 and the abutment surface 460 of the contact section 440 of the inner plug 400 comprise a smaller area compared to the design of FIG. 6 . The smaller area of the plug contact surface 450 and the abutment surface 460 of the contact section 440 of the inner plug 400 may result in the interface between the thrust surface 540 of the outer plug 500 and the abutment surface of the contact section 440 of the inner plug 400 Higher pressure at the interface between the plug contact surface 450 of the contact section 440 of the inner plug 400 and the ring contact surface 250 of the contact ring 210 of the cable terminal 200 .

One of the ring contact surface 250 of the contact ring 210 of the cable terminal 200, the plug contact surface 450 of the contact section 440 of the inner plug 400, the abutment surface 460 of the contact section 440 of the inner plug 400 and the thrust surface 540 of the outer plug 500 One or more may be coated with metal or another material. The ring contact surface 250 of the contact ring 210 of the cable terminal 200 and/or the plug contact surface 450 of the contact section 440 of the inner plug 400 may, for example, be coated with tin or silver plating to reduce the contact surface 450 of the plug contact with the ring contact surface. Contact resistance between 250 and to improve long-term stability.

Hereinafter, another connector assembly will be explained with reference to FIGS. 2 to 5 . These other connector assemblies include similarities to the first connector assemblies shown in FIG. 1 . In FIGS. 2 to 5 , parts of another connector assembly that are equivalent to or have the same effect as those of the first connector assembly 10 are given the same reference numerals as in FIG. 1 and will not be described in detail. The following description will focus on the differences between the other connector assembly and the first connector assembly 10 of FIG. 1 .

The modifications described below with reference to FIGS. 2 to 5 may be incorporated individually into the first connector assembly 10 shown in FIG. 1 or may be combined with each other.

FIG. 2 shows a schematic cross-sectional view of a portion of the second connector assembly 20 . In the second connector assembly 20 , the plug contact surface 450 of the contact section 440 of the inner plug 400 includes a plurality of protrusions 451 . Protrusions 451 extend from the otherwise substantially planar plug contact surface 450 . The protrusion 451 can be designed, for example, as a plurality of ridges.

The projection 451 that is arranged on the plug contact surface 450 of the contact section 440 of the inner plug 400 reduces the nominal distance between the plug contact surface 450 of the inner plug 400 and the ring contact surface 350 of the contact ring 210 of the cable terminal 200. )Contact area. The reduction in the nominal contact area between the plug contact surface 450 and the ring contact surface 250 may increase the contact pressure between the contacting portions of the plug contact surface 450 and the ring contact surface 250 . This ensures and improves the electrical connection between the contact section 440 of the inner plug 400 and the contact ring 210 of the cable terminal 200 .

The protrusion 451 may have a different shape, for example mainly rounded or mainly pointed at the tip. The number, distribution and orientation of the protrusions 451 can be adjusted for optimum results.

FIG. 3 shows a schematic cross-sectional view of a portion of a third connector assembly 30 . In the third connector assembly 30 , the plug contact surface 450 of the contact section 440 of the inner plug 400 includes a protrusion 451 . In the third connector assembly 30, the protrusion 451 is designed as an annular protrusion with a substantially trapezoidal cross-section. However, the protrusion 451 of the plug contact surface 450 can be designed in a different way.

The ring contact surface 250 of the contact ring 210 of the cable terminal 200 of the third connector assembly 30 includes a recess 251 corresponding to the protrusion 451 of the plug contact surface 450, so that the protrusion 451 of the plug contact surface 450 can be received in the ring contact. In the recess 251 of the surface 250 .

The combination of the protrusions 451 of the plug contact surface 450 and the recesses 251 of the ring contact surface 250 increases the contact area between the plug contact surface 450 and the ring contact surface 250 . The increased contact area between the plug contact surface 450 of the inner plug 400 and the ring contact surface 250 of the contact ring 210 of the cable terminal 200 can help ensure a reliable electrical connection between the inner plug 400 and the cable terminal 200 .

Furthermore, the substantially trapezoidal cross-sections of the protrusions 451 of the plug contact surface 450 and of the recesses 251 of the ring contact surface 250 comprise sections inclined with respect to the lateral direction 12 and are therefore not oriented perpendicularly to the longitudinal direction 11 . In the inclined section of the plug contact surface 450 and the ring contact surface 250 compared to the section of the plug contact surface 450 and the ring contact surface 250 which is arranged perpendicular to the longitudinal direction 11 , at a given torque of the outer plug 500 , an increased contact pressure can be obtained.

FIG. 4 shows a schematic cross-sectional view of a portion of a fourth connector assembly 40 . In the fourth connector assembly 40 a transition piece 600 is provided between the plug contact surface 450 of the contact section 440 of the inner plug 400 and the ring contact surface 250 of the contact ring 210 of the cable terminal 200 .

Transition piece 600 may include a metal or metal alloy, such as beryllium copper, or another conductive material and/or may include a conductive coating, such as silver plating. Transition piece 600 may be rigid and stiff or may be flexible, such as a membrane or blank, or elastic, such as a wave washer or spring.

The transition piece 600 can be configured to increase the contact area between the plug contact surface 450 of the contact section 440 of the inner plug 400 and the ring contact surface 250 of the contact ring 210 of the cable terminal 200 and/or to increase the contact between the plug contact surface 450 and the ring. The contact pressure between the surfaces 250 is designed in such a way. Transition piece 600 may also be used to flatten minor unevennesses in plug contact surface 450 and/or ring contact surface 250 .

More than one transition piece 600 may be provided between the plug contact surface 450 of the contact section 440 of the inner plug 400 and the ring contact surface 250 of the contact ring 210 of the cable terminal 200 .

FIG. 5 shows a schematic cross-sectional view of a fifth connector assembly 50 . In the fifth connector assembly 50, the ring contact surface 250 of the contact ring 210 of the cable terminal 200, the plug contact surface 450 of the contact section 440 of the inner plug 400, the abutment surface 460 of the contact section 440 of the inner plug 400 and the outer The thrust surfaces of the ends 520 of the plug 500 are both at least partially inclined at an angle 700 relative to the lateral direction 12 . Angle 700 may be a positive or negative angle between -90 degrees and +90 degrees.

The inclination of the ring contact surface 250 and the plug contact surface 450 increases the contact area between the ring contact surface 250 and the plug contact surface 450 . The inclination of the ring contact surface 250 and plug contact surface 450 may also lead to an increased contact pressure at a given torque of the outer plug 500 compared to an orientation of the ring contact surface 250 and plug contact surface 450 perpendicular to the longitudinal direction 11 .

The inclination of the abutment surface 460 of the inner plug 400 and the thrust surface 540 of the outer plug 500 increases the contact area between the abutment surface 460 and the thrust surface 540 . The slope of the abutment surface 460 and the thrust surface 540 may also increase the contact pressure between the abutment surface 460 and the thrust surface 540 .

It is possible only to arrange the plug contact surface 450 of the inner plug 400 and the ring contact surface 250 of the contact ring 210 of the cable terminal 200 with an inclination of approximately an angle 700 with respect to the lateral direction 12 and to arrange the abutment surface 460 of the inner plug 400 and The thrust surface 540 of the outer plug 500 is arranged parallel to the lateral direction 12 . Instead, it is possible to merely arrange the abutment surface 460 of the inner plug 400 and the thrust surface of the outer plug 500 to have an inclination of about an angle 700 with respect to the lateral direction 12, and align the ring contact surface 250 of the cable terminal 200 with the thrust surface of the inner plug 400. The plug contact surface 450 is arranged parallel to the lateral direction 12 .

reference sign

10 first connector assembly

11 portrait orientation

12 Lateral direction

20 Second Connector Assembly

30 Tertiary Connector Assembly

40 Fourth Connector Assembly

50 fifth connector assembly

100 shell

110 Bus

120 cap

130 First Shield

140 Second shielding part

200 Cable Termination

210 contact ring

220 tubular part

230 Disc

240 openings

250 ring contact surface

251 Concave

260 The first thread (internal)

300 conductors

310 contact interface

320 threaded hole

400 inner plug

410 long part

411 inner end

412 outer end

420 internal contact interface

430 threaded boss

440 contact section

450 Plug contact surface

451 raised

452 slots

460 Adjacent surfaces

500 outer plug

510 long part

511 inner end

520 end

530 Second thread (external)

540 thrust surface

600 transition piece

700 degrees

Claims (16)

1. a kind of connector assembly (10,20,30,40,50) comprising：

Cable terminal (200), the cable terminal have contact ring (210),

Female connector (400), the female connector have contact area section (440), and

Male connector (500), the male connector can move on longitudinal direction (11),

Wherein, the male connector (500) includes directed thrust directed thrust surfaces (540),

The wherein described contact area section (440) includes the abutment surface (460) being orientated towards the directed thrust directed thrust surfaces (540),

Wherein, the contact area section (440) can be clamped between the male connector (500) and the contact ring (210), with And

Wherein, when the contact area section (440) is clamped between the male connector (500) and the contact ring (210), institute Directed thrust directed thrust surfaces (540) are stated to abut against on the abutment surface (460).

2. connector assembly (10,20,30,40,50) according to claim 1,

Wherein, the contact ring (210) includes the first screw thread (260),

Wherein, the male connector (500) includes the second screw thread (530) coordinated with first screw thread (260).

3. connector assembly (10,20,30,40,50) according to claim 2,

Wherein, first screw thread (260) is internal thread, and second screw thread (530) is external screw thread.

4. the connector assembly (10,20,30,40,50) according to any one of claim 1-3,

Wherein, the abutment surface (260) includes annulus shape.

5. the connector assembly (10,20,30,40,50) according to any one of claim 1-3,

Wherein, the abutment surface (260) includes fluting annulus shape.

6. the connector assembly (10,20,30,40,50) according to any one of claim 1-3,

Wherein, the contact ring (210) includes ring contact surface (250),

Wherein, the contact area section (440) includes the Plug contact surface (450) being orientated towards the ring contact surface (250).

7. connector assembly (20,30) according to claim 6,

Wherein, the Plug contact surface (450) and/or the ring contact surface (250) include raised (451).

8. connector assembly (30) according to claim 7,

Wherein, the Plug contact surface (450) and/or the ring contact surface (250) include corresponding to raised (451) Recess portion (251).

9. connector assembly (40) according to claim 6,

Wherein, conductive transition part (600) is arranged between the ring contact surface (250) and the Plug contact surface (450).

10. connector assembly (10,20,30,40,50) according to claim 6,

Wherein, the Plug contact surface (450) and the ring contact surface (250) at least partly relative to the longitudinal direction The vertical direction (12) in direction (11) and tilt.

11. the connector assembly (50) according to any one of claim 1-3,

Wherein, the directed thrust directed thrust surfaces (540) and the abutment surface (460) at least partly relative to the longitudinal direction (11) vertical direction (12) and tilt.

12. the connector assembly (10,20,30,40,50) according to any one of claim 1-3,

Wherein, the connector assembly (10,20,30,40,50,60) includes conductor (300),

Wherein, the female connector (400) includes the interior contact interface (420) for contacting the conductor (300).

13. the connector assembly (10,20,30,40,50) according to any one of claim 1-3,

Wherein, the connector assembly (10,20,30,40,50) includes shell (100),

Wherein, the cable terminal (200), the female connector (400) and the male connector (500) are at least partially disposed on In the shell (100).

14. connector assembly (10,20,30,40,50) according to claim 13,

Wherein, the shell (100) includes elastomeric material.

15. connector assembly (10,20,30,40,50) according to claim 14,

Wherein, the shell (100) includes silicones either EPDM or thermoplastic elastomer (TPE).

16. connector assembly (10,20,30,40,50) according to claim 13,

Wherein, the cable terminal (200) and conductor (300) cladding in the shell (100) are molded.