KR20060115893A - Connector system with improved unplugging functionality - Google Patents

Abstract

The invention relates to a connector system (1) of a connector (2) and a counterpart (4). The connector (2) comprises a pivotally supported locking arm (16) extending towards said counterpart (4;5), wherein said locking arm (16) comprises a first locking portion (17) adapted to engage with a second locking portion (22) of said counterpart (4;5) by a first rotating movement (R1) of said locking arm (16) to a locked position to lock said connector (2) and said counterpart (4;5) and to disengage from said second locking portion by a second rotating movement (R2) to an unlocked position to unlock said connector (2) and said counterpart (4;5). The system (1) is adapted to support said locking arm (16) after said second rotating movement (R2) to prevent said locking arm (16) to rotate backwards to said locked position. The invention further relates to a method for unplugging such a connector (2) and a counterpart (4).

Description

Connector system with improved unpluggability {CONNECTOR SYSTEM WITH IMPROVED UNPLUGGING FUNCTIONALITY}

The present invention relates to a connector system for signal transmission with an improved disengagement function. In particular, the present invention relates to a connector system and a counterpart of a connector, the connector comprising a pivotally supported locking arm extending towards the counterpart, wherein the locking arm comprises the connector and the counterpart. Engaging the second locking portion of the object by the first rotational movement of the locking arm to the engaged position to engage the second rotational movement to the disengaged position to disengage the connector and the counterpart. A first locking portion configured to disengage from the locking portion.

Nowadays, for example, cable connectors in communication applications must meet increased requirements, for example, with regard to stiffness, assembly performance, aesthetic considerations, density, and shielding.

US Pat. No. 4,702,542 discloses a two part housing of a cable connector that can be mated and latched with a connector held in another housing. A pivotally supported spring loaded latching arm is provided to couple the cable connector to the mating connector housing or to the cutout of the chassis or panel.

The problem with prior art connector systems is that the cable connector can be uncoupled because the operator applies the appropriate force beyond the spring load to execute the latch and then uncouples the cable connector while still applying force to the latch. Plugging is relatively difficult. If the unplugging operation is not performed immediately after disengagement, the cable connector reengages as a result of the spring load on the locking arm.

Connector panels in communication applications typically have many such connector systems, and repeated unplugging of the connector system by this complex operation is ergonomically problematic. Moreover, in the case of panels with high density of cable connectors, unplugging operation is often difficult due to lack of space.

It is an object of the present invention to provide a connector system with an improved unplugging function.

This object is achieved by providing a connector system, characterized in that the system is formed to support the locking arm after the second rotational movement to prevent the locking arm from rotating backward to the engaged position. By providing a means for supporting the locking arms in the disengaged position to these systems while the connectors have not yet been unplugged, the operator can first uncouple the connectors from the mating portion and later unplug or unmate them at a comfortable time. . The locking system according to the invention no longer requires a complicated operation for unplugging a connector, such as a cable connector, from a counterpart, such as a board connector housing or panel. Moreover, when many cables are applied to the cable connector, the space to hold the cable connector may be limited. The present invention allows the cable connector to first unlock by activating the locking arm and then to unplug the cable connector by pulling the easily accessible cable. It should be understood that the connector system according to the present invention can be applied to various situations, including cable connectors and board connector housings, connections between cable connectors and other cable connectors, board connectors and other board connectors, and the like. It should be further understood that a single transmission may be associated with electrical and optical signals. It should also be understood that the locking arm may be part of the counterpart, i.e., interpreted as the opposite of the connector as counterpart and the situation may be reversed. If the locking arm is part of the board connector housing instead of the cable connector, for example, the locking arm is less susceptible to mechanical impact.

In an embodiment of the invention, the connector system includes a support structure for supporting the locking arm. Such support structures may be provided in connectors and / or counterparts. The support structure is a reliable means of preventing the locking arm from rotating backward to the locked position. Preferably, the locking arm comprises a bend in the direction of the support structure to ensure that the locking arm contacts the support structure after disengagement.

In an embodiment of the present invention, the locking arm is shaped to contact the counterpart. Contact between the metallic locking arm and the counterpart may enhance the electromagnetic shielding.

In an embodiment of the invention, the connector system includes a spring member configured to apply a biasing force to the locking arm that pushes the locking arm in the engaged position. The spring member provides automatic locking operation of the locking arm if the connector is plugged into the counterpart without manual actuation of the locking arm required. The spring member may be integral with the locking arm and may consist of, for example, a torsion spring, a spiral spring or a helical spring. The spring member may alternatively be an additional separately mounted component. This separate spring member is advantageous when the material of the locking arm is different from the material of the spring member so that both elements can be optimized for its individual purpose. If, for example, a high spring force is required, the structure of the spring member is not limited to the requirements for the locking arm but can be optimized for this purpose. The spring member repositions the locking arm to the initial position if the system is unplugged. Moreover, the inner rod of the locking arm can provide an audible click when the connector is engaged into the counterpart, for example when supported by the support structure. In an embodiment of the invention, the spring member may be further formed to exert a biasing force perpendicular to the plane of the first and second rotational movements. By positioning or configuring the spring member to exert both rotational and lateral spring forces, the locking arm can contact the support structure without requiring a specific shape for the locking arm. Moreover, lateral forces can be used to absorb gaps in the present system.

In an embodiment of the invention, the first locking portion comprises a hook portion with a first locking surface and the second locking portion comprises a second locking surface formed to engage the first locking surface in the engaged position. Furthermore, the second locking portion may comprise a ramped surface formed to guide the guide surface of the first locking portion at least before the first rotational movement. This locking structure ensures to provide a reliable automatic coupling.

In one embodiment of the invention, the locking arm protrudes from the housing of the connector to induce a second rotational movement. The protruding locking arm enables manual operation of the locking arm. In contrast, the connector includes a housing configured to expose the locking arm in a manner usable to induce the second rotational movement. The housing may include an opening for insertion of a tool, for example a screwdriver. Preferably, the locking arm can be executed by a structure that can transform the rotational movement of the screwdriver into the execution of the locking arm. Rotational movement of the screwdriver only requires a small space for the operator on the high density panel. Moreover, the non-projected locking arm reduces the chance of unintended disengagement.

In an embodiment of the invention, the housing of the connector comprises a first space with an inlet for the cable and a second space for receiving a portion of the locking arm. The second space is preferably configured to incorporate a shaft of or against the pivotingly supported locking arm. The separate second space can project the locking arm, in particular when it is covered or closed by one or more walls.

In an embodiment of the invention, at least one of the connector and the counterpart and the locking arm is metal. Metal parts provide increased rigidity to the system and improve electromagnetic shielding compared to plastic housings. The locking arm may be or comprise stainless steel. Stainless steel can be stamped and ensures proper coupling of stiffness and spring functional properties.

In an embodiment of the invention, the counterpart comprises a metallic board connector housing mounted on a printed circuit board with an inlet for the locking arm in the receiving space with the second locking portion. Although the locking arm can couple the cable connector to the panel, it is preferably for coupling the cable connector to the housing of the board connector to prevent the adoption of the panel for the purposes of the present invention. The receiving space may further comprise at least one of a support structure, a locking surface and a ramped surface. In the case of a metallic board connector housing, for example, a diecast material can be used. The diecast material provides considerable freedom to shape the board connector housing to the bonding requirements. However, although the die cast material is a good material, other materials such as non-die cast metals, plastics and metallic plastics can also be used.

In an embodiment of the invention, the connector housing inlet further comprises one or more ground springs around the inlet. Ground springs improve the electromagnetic shielding effect on the board connector housing in the case of uncoupled or unplugged connectors. Moreover, the inlet can include one or more chamfered guide walls to facilitate insertion of the locking arm.

In an embodiment of the invention, the board connector housing has a mating side with respect to the connector, the mating side including at least one threaded hole. Threaded holes allow, for example, conventional cable connectors that do not have pivotally supported locking arms to engage board connectors.

In an embodiment of the present invention, the connector system is configured to allow the manipulation of the locking arm to rotate back to the engaged position. This can be achieved, for example, by having a support structure comprising a support surface with an inclined direction or by allowing the lateral movement of the locking arm to be allowed to rotate back to the engaged position. This embodiment is advantageous because the connector does not need to be unplugged at least partially first before recombination can be achieved.

The invention also relates to a cable connector for use in a connector system as described above.

The invention also relates to a board connector housing, counterpart, preferably for use in a connector system as described above.

The invention finally relates to a method for unplugging a connector from a mating portion, the connector having a pivotally supported locking arm extending towards the mating portion formed to engage the connector and the mating portion, and engaging Disengaging the connector by rotational movement of the locking arm from the disengaged position to the disengaged position, and a plug having the locking arm in the disengaged position without force being exerted on the locking arm. Placing the connector in a closed position and continuously unplugging the connector from the counterpart.

U. S. Patent No. 5,628, 648 discloses a connector position assurance system comprising a primary locking arm with a locking slide having an electrical connector mounted on top of the locking arm. The locking arm is engaged by sliding the locking slide relative to the locking arm. In the disengaged position, the primary locking arm can be rotated. However, the disclosed system is a complex locking system, and the locking arms are not prevented from rotating backward to the engaged position.

U. S. Patent No. 5,154, 629 discloses a cable connector with a side cavity that deflects to an integral engagement spring or a helical compression spring in an engaging position and pivotally receives a latch with a locking finger to engage a connecting element. However, the latch requires additional sliding movement laterally and does not provide support for the latch in the unengaged position.

The invention is further illustrated with reference to the accompanying drawings showing preferred embodiments in accordance with the invention. It should be understood that the present invention is not limited in any way to these features and preferred embodiments.

1 is a perspective view of a connector system mounted on a circuit board attached to a front panel in accordance with an embodiment of the present invention.

2A and 2B show perspective views of the connector system of FIG. 1 in an unplugged and plugged state, respectively.

Figure 3 shows a perspective view of a board connector housing according to an embodiment of the present invention.

4A and 4B show a detailed plan view of a cable connector system in a plugged and coupled state in accordance with an embodiment of the present invention.

Figure 5 shows a detailed perspective view of a portion of a connector system in a plugged and engaged state in accordance with an embodiment of the present invention.

6A-6C show a detailed plan view of a connector system according to an embodiment of the present invention prior to plugging the cable connector and the board connector housing.

7A-7E show detailed top and perspective views of a connector system according to an embodiment of the present invention while plugging a cable connector and a board connector housing.

8A-8C show a detailed plan view of a connector system according to an embodiment of the present invention in a coupled state.

9A-9D show detailed top and perspective views of a connector system according to the present invention after disengaging the cable connector and the board connector housing and prior to unplugging.

10A-10D show detailed top and perspective views of a connector system according to an embodiment of the present invention while unplugging cable connectors and board connector housings.

11A-11D show detailed top and perspective views of a connector system according to an embodiment of the present invention while unplugging cable connectors and board connector housings.

12A and 12B show detailed views of different embodiments of the present invention.

Although the present invention relates to any type of connector system including a connector for signal transmission and a counterpart, the present invention is now described in detail for a connector system including a cable connector and a board connector housing.

1-3 show an I / O cable connector system 1 with a cable connector 2 having a cable 3 and a board connector housing 4. The front panel 5 has a cutout 6 for insertion of the cable connector 2. The front panel 5 comprises a circuit board 7, also referred to as PCB 7. The PCB 7 generally comprises a plurality of signal tracks and electrical components (not shown) for the transmission of electrical signals to or from one or more wires of the cable 3. The connection of this wire to the signal track of the PCB 7 is achieved by providing a header device (not shown) in the board connector housing 4.

The cable connector 2 includes several parts described in detail in Applicant's pending patent application NL 1022225 ("Cable connector and method of assembling the cable to such cable connector"). This application is directed to the construction of die-cast metal housing parts 10, 11, die-cast metal base 13 and sheet metal parts 13 shown in FIGS. 2A and 2B, which provide a first space for cable 3. It is incorporated herein by reference in connection with the features and in connection with the termination of the cable 3 wires to the cable connector 2 and the connection of the cable 3.

The board connector housing or shielding cage 4 is incorporated herein by reference in the context of how the sheet metal part 15 is attached to the diecast metal part 14 and the construction of the sheet metal part 15. A die-cast metal part 14 and a sheet metal part 15 similar to the shielding room described in detail in Applicant's pending patent application NL1023662 (" shield "). Moreover, the pending application provides information at the time of mounting the diecast metal part 14 to the PCB 7.

The cable connector 2 is pivotally supported by the pivot joint 18 and extends toward the board connector housing 4 and causes the rotational movement of the locking arm 16 around the pivot joint 18 to cause the cable connector 2 to be moved. And a locking arm 16 having a first locking portion 17 protruding therefrom. Pivot joint 18 may be formed by fasteners such as screws, snap joints, dowels, or other suitable connectors. The locking arm 16 may have an extended pressing surface S for manual operation. The cover 19 is attached to the cable connector housing part 11 to provide a second space for receiving a portion of the locking arm 16. The cover 19 can be attached to the housing part 11 by a pivot joint 18. Pivot joint 18 may be incorporated into cover 19. The locking arm 16 is preferably stainless steel. Stainless steel can be stamped and proven to combine proper stiffness and elastic properties.

It should be appreciated that the cable connector 2 alternatively includes a housing configured to expose the locking arm 16 so that the locking arm 16 can cause a rotational movement. The housing may comprise an opening for insertion of a tool, for example a screwdriver. Preferably, the locking arm 16 can be executed by a structure (not shown) that can transform the rotational motion of the screwdriver into the execution of the locking arm 16. The rotational movement of the screwdriver requires very little space for the operator on the high density panel.

3 shows a perspective view of the board connector housing 4. The board connector housing part 14 has an inlet 20 for the locking arm 16 into the receiving space 21. The receiving space 21 has a second locking portion 22 formed to engage with the first locking portion 17 of the locking arm 16 by the rotational movement of the locking arm 16 which will be described in more detail later. The accommodation space 21 further includes a support structure or ledge 23. The function of the support structure 23 is described in detail later. The inlet 20 includes a ground spring 24 around the inlet 20. The grounding spring 24 enhances the electromagnetic shielding effect for the board connector housing 4 in the case of the uncoupled or unplugged cable connector 2. Moreover, the inlet 20 can include a chamfered guide wall 25 to facilitate insertion of the locking arm 16. The board connector housing 4 may further comprise at least one threaded hole 26. The threaded hole 26 allows a conventional cable connector to be coupled to the board connector 4 without the pivotingly supported locking arm 16. It is to be understood that the board connector housing 4 may also be a single part housing or any other type of conventional material of diecast metal. The chamfered guide wall 25 may be omitted or positioned rearward such that the board connector housing 4 has a single inlet for the cable connector 2 and the locking arm 16. In this embodiment, the cable connector 2 may comprise elements constituting the wall when plugged into the board connector housing 4. This embodiment is advantageous if, for example, an element for a cable connector can further protect the locking arm 16, while the formed inlet of the board connector housing enhances the electromagnetic shielding effect.

4A, 4B and 5 show a detailed view of the connector system 1 in the plugged and engaged state. 4A shows a top view of the connector system 1, while FIG. 4B shows a detailed partial view of the top view indicated by the area bounded by the dashed lines.

The locking arm 16 has a first locking portion 17 in the form of a hook portion having a guide surface 30 and a first locking surface 31 shown in FIG. 2A. The locking arm 16 is shaped to contact the board connector housing 4. If this inner spring function provides sufficient force between the locking arm 16 and the board connector housing 4, the support structure 23 shown in FIG. 3 can be omitted. Moreover, the contact between the metallic locking arm 16 and the housing 4 can improve electromagnetic shielding. The dark arrow in FIG. 4B shows the force on the locking arm 16. 1 is the intended preliminary rod on the surface of the connector joined by the shape of the locking arm 16. 2 and 3 are reaction forces. 2 is adjustable, for example by tightening or loosening the screw. When the desired function of the locking arm 16 is in friction with the tolerance, the function can be optimized by adjusting the preload.

FIG. 5 shows a detailed perspective view of a portion of the connector system 2 in the plugged and engaged state of FIG. 2B, wherein the side walls of the cover 19 of the cable connector 2 and the board connector housing 4 are provided for simplicity. It is omitted. Only a small portion of the support structure 23 can be seen because it is obscured by the front of the locking arm 16.

The locking arm 16 has a hook portion 17 having a first locking surface 31 and a guide surface 30 formed to engage the second locking surface 32 of the second locking portion 22 in the engaged position. Include. The second locking portion 22 is a ramped surface 33 formed to guide the guide surface 30 of the first locking portion 17 during insertion of the locking arm 16 at the inlet 20 of the accommodation space 21. It includes more. The lower portion of the hook portion 17 can be curved toward the board connector housing 4 along the dotted line B to ensure that the locking arm 16 can be supported by the support structure 23.

Moreover, the locking arm 16 includes an integral spring member or deflection spring 34 to exert a biasing force on the locking arm 16 forcing the locking arm in the engaged position shown in FIG. The spring member 34 is supported in the second space determined by the cover 19 and the connector housing portion 11. The spring member 34 is further unplugged as shown in FIG. 4B to reposition the locking arm 16 to its initial position. Moreover, the inner rod of the locking arm 16 can provide an audible click sound when the connector is engaged into its counterpart, for example when supported by the support structure. As described above, the spring member 34 may alternatively be a separate spring member 34 relative to the locking arm 16.

The spring member may be further formed to apply a biasing force F4 perpendicular to the first and second rotational movements R1, R2 planes (see FIGS. 8 and 9). By configuring or positioning the spring member 34 to apply both spring forces in both rotational and lateral directions, the locking arm 16 can contact the support structure 23 without requiring an internal preload. Moreover, lateral forces can be used to absorb gaps in the present system.

An operating embodiment of the connector system 1 is shown in Figures 6-11. The same reference numerals are used to denote the same parts of the connector system 1.

6A-6C show a detailed plan view of the connector system 1 before plugging the cable connector 2 and the board connector housing 4. The locking arm 16 has a position determined by the spring member 34 to follow the ramped surface 33 of the second locking portion 22 while the guide surface 30 plugs. Specifically, the locking arm 16 is curved towards the board connector housing 4 as shown in the enlarged plan view of FIG. 6A.

7A-7E show a detailed plan view of the connector system 1 while plugging the cable connector 2 and the board connector housing 4. Clearly, the guide surface follows the ramped surface 33 while the locking arm 16 rotates about the pivot joint 18, as most clearly shown in FIGS. 7C and 7D. The hook portion 17 of the locking arm 16 during this plug rotation rotates when the side wall of the board connector housing 4 pushes the flexible locking arm 16 in this direction as shown most clearly in FIG. 7E. Deflect outward. Clearly in FIG. 7D, the side wall of the support surface 23A of the support structure 23 is formed so that the first flat portion () of the ramped surface 33 does not extend to the support surface 23A in this state. It is raised for 33A).

If the hook portion 17 passes through the finally substantially flat portion 33A of the ramped surface 33, the locking arm 16 is subjected to a first rotational movement R1, where the hook portion 17 is It is engaged with the second locking portion 22 of the board connector housing 4 in the engaged position for engaging the cable connector 2. 8A-8C show a detailed plan view of the connector system 1 in this engaged state. The hook portion 17 of the locking arm 16 is clearly deflected outwardly. The spring member 34 exerts a spring force on the locking arm 16 to hold the locking arm in this engaged position. Clearly from the above, it can be derived that the locking of the connector system can be performed by an operator using only one hand to plug.

If the cable connector 2 and the board connector are unplugged, the first engaged position is canceled. 9A-9D show detailed top and perspective views of a connector system after disengaging the cable connector and the board connector housing and before unplugging. The hook portion 17 and the second locking portion 22 are disengaged by, for example, inducing a second rotational movement R2 to the locking arm 16 by manual operation of the protrusion of the locking arm 16. The shape of the locking arm 16 and / or the hook portion 17 ensures that the locking arm 16 after the second rotational movement R2 is supported by the support structure 23 and is shown in FIGS. 8A-8C. It is prevented from rotating backward to the engaged position. The ledge 23 is preferably defined by the board connector housing 4 adjacent the second locking or protrusion 22 and the ramped surface 33 and is spaced apart from the ramped surface 33.

By providing a system with means for supporting the locking arm 16 in the disengaged position while the cable connector 2 has not yet been unplugged, the operator first disengages the cable connector 2 and later at a convenient time. You can unplug or unmapped them. As a result, the locking system according to the invention no longer requires complicated work to unplug the cable connector 2 from the board connector housing 4 or panel 5 as described above.

10A-10D show a detailed top view and a perspective view of the connector system during unplugging of the cable connector 2 and the board connector housing 4. Clearly the hook portion 17 is guided by the support surface 33A to pass through the second locking surface 32 to prevent the first locking surface 31 from recombining. The cable connector 2 and the board connector housing 4 must be at least unplugged in this embodiment with the hook portion 17 no longer supported by the support surface 33A to form a continuous bond. . The hook portion 17 is no longer deflected outward.

11A-11D finally show a detailed plan view and a perspective view of the connector system 1 while the cable connector and the board connector housing are further unplugged. In this situation, the guide surface 30 of the hook portion 17 follows the ramped surface 33 while the locking arm 16 is rotated around the pivot joint 18 which is pushed down by the spring member 34.

The locking arm 16 may be attached to the first connector 2 or the second mating connector 4 or the panel 5. Similarly, the second locking portion 22, the ramped surface 33 and the ledge 23 can be defined by the first connector 2 or the second mating connector 4 or the panel 5. Once matched, the first and second connectors 2, 4 can withstand large forces of, for example, 120N without loosening as well as typical torsional, bending and pulling tests.

It should be understood that the various features of the connector system 1 described above may be modified within the scope of the present invention, such as the variations shown in FIGS. 12A and 12B. In this embodiment, the connector system 1 is arranged such that recombination can be performed without first unplugging the cable connector 2. The ledge surface 23A ′ of the ledge 23 is shown in FIG. 7D while the hook portion 17 slides into the engaged position from the ledge surface when a significant force, indicated by the dark arrows in FIG. 12B, is applied to the locking arm 16. The angle α is formed with respect to the horizontal direction of the supported support surface 23A. The angle α can be varied to optimize the intended and unintended turning force of the locking arm 16 to the engaged position. Thus, in the embodiment of Figure 12, a feature of the present invention that prevents the locking arm 16 from rotating backward to the engaged position is that the locking arm 16 is engaged in this embodiment by its intended action. It is to be understood that the rocking arm should be interpreted to prevent the rear arm from actually rotating backwards when turning again. It is to be understood that other embodiments for performing this recombination action can be expected such that the locking arm 16 includes bumps corresponding to recesses, holes or grooves in the support structure 23. In addition, the system 1 may be configured such that the locking arm 16 or at least the hook portion 17 permits lateral movement, such that the hook portion 17 leaves the support structure 23 and the locking arm 16. Rotates back to its engaged position.

Moreover, another variation of the embodiment shown within the scope of the invention is an embodiment in which the locking arm 16 is mounted on a board connector, the application of another spring member 34, the board connector housing 4 having a cable connector 2 And one or more locking arms 16 are applied, for example, to a connector system 1 mounted on a single cable connector 2. It should be understood that it includes an example.

Claims (30)

The connector 2 comprises a pivotally supported locking arm 16 extending towards the counterparts 4, 5, the locking arm 16 having the connector 2 and the counterparts 4, 5. To the second locking portion 22 of the counterparts 4 and 5 by means of a first rotational movement R1 of the locking arm 16 to a combined position to engage the connector 2 and the counterpart. Corresponding to the connector 2, comprising a first locking portion 17 formed to disengage from the second locking portion by a second rotational movement R2 to the disengaged position to disengage (4,5). In the connector system 1 of the parts 4 and 5, And the system is configured to support the locking arm (16) after the second rotational movement (R2) so that the locking arm (16) is prevented from rotating backward to the engaged position. 2. A connector system according to claim 1, wherein at least one of the connector (2) and the counterpart (4,5) comprises a support structure (23) for supporting the locking arm (16). 3. A connector system according to claim 2, wherein the locking arm (16) comprises at least a bend (B) in the direction of the support structure (23). 4. Connector system according to any one of the preceding claims, characterized in that the locking arm (16) is shaped to contact the counterpart (4,5). 5. The system as claimed in claim 1, wherein the system is adapted to apply a biasing force to the locking arm 16 which pushes the locking arm 16 in the engaged position. 6. And a connector system comprising: 6. A connector system according to claim 5, wherein the spring member (34) is integral with the locking arm (16). 6. Connector system according to claim 5, characterized in that the spring member (34) is a separate spring element with respect to the locking arm (16). 8. The spring member (34) according to any one of claims 5 to 7, characterized in that the spring member (34) is further formed to exert a biasing force perpendicular to the plane of the first and second rotational movements (R1, R2). Connector system. 9. The method of claim 1, wherein the first locking portion 17 comprises a hook portion with a first locking surface 31, and the second locking portion 22 is coupled to the coupled locking portion. And a second locking surface (32) configured to engage the first locking surface (31) in position. 10. The method of claim 1, wherein the second locking portion 22 is formed to guide the guide surface 30 of the first locking portion 17 at least before the first rotational movement R1. And a ramped surface (33,33A). The locking arm (16) according to any one of the preceding claims, wherein the locking arm (16) protrudes from the housings (10, 11, 19) of the connector (2) to induce the second rotational movement (R2). Characterized by a connector system. The connector (2) according to claim 1, wherein the connector (2) exposes the locking arm (16) so that the locking arm (16) can utilize to induce the second rotational movement (R2). And a housing (10, 11, 19) configured to. The housing (10, 11, 19) of claim 11 or 12 comprises a first space with an inlet for a cable (3) and a second space for receiving a portion of the locking arm (16). And a connector system. 14. A connector system according to claim 13, wherein the second space is configured to incorporate a pivot joint (18) of or against a pivotally supported locking arm (16). 15. A connector system according to any one of the preceding claims, wherein at least one of the connector (2), the mating portion (4) and the locking arm (16) is metal. A connector system according to claim 15, wherein the locking arm (16) comprises stainless steel. 17. The counterpart according to any one of the preceding claims, wherein the counterpart (4) is provided with an inlet (20) for the locking arm (16) with a receiving space (21) having the second locking part (22). And a metallic board connector housing mounted on the provided printed circuit board (7). 18. A connector system according to claim 17, wherein the inlet (20) is part of the inlet for the connector (2). 19. The method according to claim 17 or 18, wherein the receiving space 21 further comprises at least one of the support structure 23, the second locking surface 32 and the ramped surfaces 33, 33A. Characterized by a connector system. 20. The connector system according to any one of claims 17 to 19, wherein the board connector housing inlet (20) comprises one or more ground springs (24) around the inlet (20). 21. A connector system according to any one of claims 17 to 20, wherein the board connector housing inlet (20) comprises one or more chamfered guide walls (25) with respect to the locking arm (16). 22. The board connector housing (4) according to any one of claims 17 to 21, wherein the board connector housing (4) has a mating side with respect to the connector (2), the mating side comprising at least one threaded hole (36). And a connector system. 23. A connector system according to any one of the preceding claims, wherein the system is configured to cause the operation of the locking arm (16) to re-rotate to the engaged position. The support structure (23) according to claim 23, characterized in that the support structure (23) comprises a support surface (23A ') having an inclined direction (α) to cause the locking arm (16) to rerotate to the engaged position. Connector system. 25. A connector system as claimed in claim 23 or 24, wherein the system is configured to allow lateral movement of the locking arm (16) to cause the locking arm (16) to rotate back to the engaged position. Housings 10, 11 with at least housing portions 10, 11, 12 forming a first space with an inlet for cable 3 and a second space 11, 19 for said locking arm 16; Cable connector for use in the connector system according to any one of claims 1 to 25, comprising 12,13). 27. The cable connector according to claim 26, wherein the second space is formed by a cover (19) attached to the housing portion (11). 26. A counterpart 4 for use in the connector system according to any one of claims 1 to 25, said counterpart entering an accommodation space 21 having said second locking part 22. And a board connector housing (4) having at least part (14) incorporating the inlet for the cable connector (2). 29. A counterpart according to claim 28, wherein the inlet (20) into the receiving space (21) comprises one or more ground springs (24) around the inlet (20). A method for unplugging a connector (2) from a counterpart (4, 5), wherein the connector (2) is configured to couple the connector (2) with the counterpart (4, 5). A pivotally supported locking arm 16 extending toward 5, Disengaging the connector 2 by rotational movement of the locking arm 16 from the engaged position to the disengaged position, Placing the connector (2) in a plugged position with the locking arm (16) in the disengaged position without a force being exerted on the locking arm (16); Continuously unplugging the connector (2) from the counterpart (4,5).

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