This application is based upon and claims the benefit of prior German Application No. 10 2013 019 874.7, filed on Nov. 28, 2013, the entire contents of which are incorporated herein by reference.
The disclosure relates to a connector and a mating connector for the electrical connection of a contact connector element of the connector and a mating contact connector element of the mating connector.
In the automotive field, especially when high currents are to be transmitted, connectors are used, which have contact chambers into which suitable contact connector elements can be inserted, which are locked in the housing by means of a primary and a secondary locking members. For example, a primary locking can be achieved via latching arms of the contact connector elements, which latch behind protrusions in the contact chamber. In addition, the connector has a secondary locking member that holds the contact connector element in the housing if the primary locking member disengages.
For example, DE 10 2012 013 657 A1 discloses a connector with a housing in which a contact connector element is interlocked with a primary and a secondary locking members. The secondary locking member is inserted into the housing from a side, e.g., essentially perpendicularly to a connecting direction of the connector, to prevent a movement of the contact connector elements in the connecting direction. Corresponding housings are usually produced using a synthetic material by means of an injection molding process, with a lateral insert in the mould keeping a channel free during the injection molding for the insertion of the secondary locking member. To prevent moisture from entering into the connector, the channel is generally sealed after the injection molding. This requires a rather high effort for the production of a connector of this kind.
One object of the present disclosure is to provide a connector for the electrical connection of a contact connector element of the connector and a mating connector element of a mating connector, with the connector having a secondary locking member, but nevertheless being easy to produce and easy to seal. Another object of the disclosure is to propose an advantageous mating connector for the connector.
According to the disclosure, there is provided a connector for the electrical connection of a contact connector element of the connector and a mating contact connector element of a mating connector. The connector includes a housing with a contact chamber to accommodate a contact connector element. The housing has a connector face through which the mating contact connector element engages in the contact connector element if the connector and the mating connector are interconnected. The connector face can essentially run perpendicular to a connecting direction of the connector. Additionally, the connector according to the invention comprises a secondary locking member for the secondary locking of the contact connector element in the housing. According to the disclosure, the housing is set up for assembly and actuation of the secondary locking member via the connector face.
With a conventional connector, a secondary locking member is generally inserted perpendicularly to the connecting direction of the connector. To facilitate the direction of insertion, an additional insert is needed in the mold in the injection molding procedure. The additional insert is obsolete if the secondary locking member is inserted into the connector via the connector face of the connector. This makes the connector according to the disclosure easier to produce. Furthermore, it is also easier to seal because it does not have a lateral opening for the secondary locking member. There is also an added advantage that the secondary locking member is easier to actuate by a user and the latching position of the secondary locking member can be recognized easily via the connector face.
In one embodiment, the housing has at least one assembly guide rail to guide the secondary locking member as the secondary locking member is inserted into the housing. For example, the guide rail runs essentially parallel to a connecting direction of the connector and/or essentially perpendicular to the connector face. Generally, the connector face runs essentially perpendicular to the connecting direction of the connector. This is not absolutely necessary, however. As far as the connector face runs essentially perpendicular to the connecting direction of the connector, the assembly guide rail can run essentially parallel to the connecting direction of the connector, as well as essentially perpendicularly to the connector face. The assembly guide rail facilitates a targeted positioning of the secondary locking member in the housing.
The housing can have at least one locking guide rail to guide the secondary locking member when locking the contact connector element in the housing. In some embodiments, the assembly guide rail and the locking guide rail are positioned essentially perpendicular relative to one another. The assembly guide rail and the locking guide rail can therefore be different rails, but they will generally be interconnected.
With a conventional connector, the assembly direction of the secondary locking member and its locking direction run parallel to one another. For example, in DE 10 2012 013 657 A1, the secondary locking member is moved laterally into the connector and at first latches onto a pre-locking position at the lateral latching grooves. By pressing further into the same direction, the secondary locking member is moved into its final latching position. The perpendicular arrangement of the assembly guide rail relative to the locking guide rail abandons the conventional principle according to which the assembly direction and the locking direction run parallel to one another. Compared to conventional connectors, the locking direction of the secondary locking member consistent with embodiments of the disclosure can indeed be maintained. If the assembly direction of the secondary locking member is then essentially perpendicular to the locking direction, there is the advantage that an assembly of the secondary locking member can be facilitated via the connector face and a user who looks at the connector face can easily recognize the position of the secondary locking member.
In one embodiment, the housing has a plurality of contact chambers to accommodate a plurality of contact connector elements, which are preferably secondarily interlocked in the housing by means of a single secondary locking member. For example, the contact chambers and the secondary locking member can be arranged in the housing in such a manner that the secondary locking member can be slid between the contact connector elements located in the housing to lock the contact connector elements in the housing. In this manner, a plurality of contact connector elements can be interlocked in the housing with a single secondary locking member, which saves material and lowers production costs.
The secondary locking member can have a detent latch, and the housing can have a pre-locking groove and a final latching groove. The position at which the detent latch engages with the pre-locking groove can be referred to as a pre-locking position of the secondary locking member. When the detent latch engages in the final latching groove, such position of the secondary locking member is generally referred to as a final latching position. In the pre-locking position, the secondary locking member is already fastened in the housing, but the contact connector element can still be inserted into the housing and removed from the housing. In the final latching position, a contact connector element located in the housing is locked.
To lock the secondary locking member, it can be slid along the locking guide rail. For example, the detent latch can run essentially perpendicular to the locking guide rail opposite the connecting direction of the connector. The pre-locking groove and the final latching groove can be developed as elongated recesses, for example, with their main axes of extension running parallel to the connector face and perpendicular to the locking guide rail. In some embodiments, the pre-locking groove and the final latching groove are arranged in the housing along the locking direction of the secondary locking member. Therefore, proceeding from the assembly guide rail, the detent latch first latches onto the pre-locking groove and then into the final latching groove if the secondary locking member moves along the locking direction.
In some embodiments, the secondary locking member has at least one contour element. The at least one contour element, for example, can move the secondary locking member into its final latching position if the connector and the mating connector are connected and the secondary locking member is not yet in its final latching position. Alternately or in addition, the at least one contour element can have the purpose of securing the secondary locking member in its final latching position if the connector and the mating connector are interconnected.
An exemplary secondary locking member according to the disclosure has a main body from which a manipulation element and at least one locking arm extend. In some embodiments, the manipulation element essentially runs perpendicular to a locking direction of the secondary locking member. In the case when the locking direction essentially runs parallel to the connector face, the secondary locking member can be actuated in a simple manner via the connector face.
In one embodiment, the at least one contour element of the secondary locking member is formed by the manipulation element described immediately above. The fact that the same element is used simultaneously for touching the secondary locking member and moving it into its final latching position, and/or for securing the secondary locking member in its final latching position, leads to savings in terms of both material and cost.
The manipulation element can have an arc or also a ramp to facilitate a sliding along a mating connector ramp of the mating connector. It is possible that the manipulation element protrudes beyond the connector face in a connecting direction of the connector. In this manner, the secondary locking member can be secured in its final latching position by means of an especially simple element of the mating connector, for example by means of a slot into which the manipulation element engages.
In one embodiment of the secondary locking member according to the disclosure, the manipulation element is supported by a reinforcing element that is connected to the manipulation element and the main body. In some embodiments, the reinforcing element has a ramp that forms a corresponding contour element. The ramp can slide especially easily along a mating connector ramp of the mating connector.
Additionally, the secondary locking member can have an additional contour element in the form of an additional ramp, which has an incline opposite an incline of the ramp. If a ramp and an additional ramp are provided with opposite inclines, the secondary locking member can be moved from the pre-locking position or even from a position that inadvertently exceeds the final latching position, into the final latching position and secured there. The ramp and the additional ramp secure the secondary locking member in its final latching position in two directions so that the secondary locking member cannot leave its final latching position, not in the direction of the pre-locking position nor in a direction that exceeds the final latching position.
According to another aspect, the disclosure comprises a mating connector for the electrical connection of a mating contact connector element of the mating connector and a contact connector element of a connector according to the disclosure. The mating connector has at least one interaction element to interact with the secondary locking member of the connector. Because of this, additional functions can be integrated into the connector and/or the mating connector and/or their combination, such as, for example, that the secondary locking member is moved automatically into its final latching position if the connector and the mating connector are interconnected and the secondary locking member is not yet in its final latching position. Furthermore, the interaction element can serve to secure the secondary locking member in its final latching position if the connector and the mating connector are interconnected.
In one embodiment of the mating connector, such an interaction element is formed by a mating connector ramp, for example, which is arranged and designed in such a manner that a contour element of the secondary locking member slides along the mating connector ramp while the connector is being connected to the mating connector if the secondary locking member is not yet in the final latching position so that the secondary locking member is moved into the final latching position. In this manner, the connector and the mating connector can be connected, for example, if the secondary locking member is still in the pre-locking position. In this situation, the contact connector elements in the housing still have a certain amount of play, which means that less connecting force is required to connect the connector and the mating connector. The contact connector elements are nevertheless secondarily locked in the housing because the secondary locking member is moved automatically into its final latching position when the connector and the mating connector are being connected.
In another embodiment of the mating connector, an interaction element is formed by a mating connector ramp, and an additional interaction element is formed by an additional mating connector ramp, which are arranged and developed in such a fashion that a contour element of the at least one contour element of the secondary locking member, in particular the ramp mentioned above or the additional ramp mentioned above, slide along the mating connector ramp or the additional mating connector ramp, depending on a position of the secondary locking member, as the connector is being connected to the mating connector if the secondary locking member is not yet in its final latching position so that the secondary locking member is moved into the final latching position. In doing so, an incline of the mating connector ramp can be especially opposite an incline of the additional mating connector ramp.
Because of the mating connector ramp and the additional mating connector ramp, the secondary locking member can be moved into the final latching position from the pre-locking position or from a position that inadvertently exceeds the final latching position. Furthermore, the mating connector ramp and the additional mating connector ramp secure the secondary locking member in its final latching position in both directions if the connector and the mating connector are interconnected.
The mating connector often has a mating connector face that runs essentially orthogonally to a connecting axis of the mating connector. The aforementioned mating connector ramp and/or the additional mating connector ramp can each run in a plane that is respectively spanned by a first vector that runs in the plane of the mating connector face orthogonally to the locking direction of the secondary locking member, and a respective second vector, which runs orthogonally to the first vector and is positioned relative to the connecting axis of the mating connector at an angle of 10° to 70°. In some embodiments, the angle is between 30° and 45°. In that angle range, the contour element can slide easily along the mating connector ramp and/or the additional mating connector ramp with efficient use of the available construction space. In some embodiments, the second vector that spans the mating connector ramp is different than the second vector that spans the additional mating connector ramp so that the incline of the mating connector ramp is opposite to an incline of the additional mating connector ramp.
In one embodiment of a mating connector, an interaction element is formed by an accommodation device to accommodate a part of the contour element, in particular a part of the manipulation element of the secondary locking member. The accommodation device can be formed and arranged in the mating connector in such a manner that the contour element part engages in the accommodation means when the connector is connected to the mating connector if the secondary locking member is in the final latching position. This secures the secondary locking member in its final latching position.
As already mentioned, the mating connector can have a mating connector face that runs essentially orthogonal to a connecting axis of the mating connector. For example, the accommodation means can be developed as a slot or as a hole in the mating connector face. A slot and/or a hole are simple to produce in order to facilitate a locking of the secondary locking member by the mating connector.
In one embodiment, the plane in which the mating connector ramp runs, and/or the plane in which the additional mating connector ramp runs, intersects a plane of the mating connector face at the accommodation means. In this manner, the contour element can slide along the mating connector ramp or the additional mating connector ramp in such a manner that at the end of the sliding process, a part of the contour element engages in the accommodation means and secures the secondary locking member in its final latching position.
In addition to a connector and a mating connector, the present disclosure, according to an additional aspect, comprises an arrangement of a connector according to the disclosure and a mating connector according to the disclosure. In one embodiment, the arrangement is developed in such a manner that the connector and the mating connector can be interconnected only if the secondary locking member is in the final latching position. Said arrangement is especially easy to realize. For example, it would already be sufficient that the manipulation element of the secondary locking member protrudes beyond the connector face so that it engages in a slot that is arranged in the mating connector face. If the secondary locking member is not in its final latching position in this embodiment, the connector and the mating connector cannot be interconnected because the part of the manipulation element that then protrudes beyond the connector face abuts the mating connector face so that a complete connection of the connector and the mating connector is impossible. The embodiment of a corresponding arrangement realizes one of the ideas of the disclosure in a simple manner because it connects the assembly and actuation of the secondary locking member via the connector face with a simple interaction element of the mating connector.
In the following, unless noted otherwise, the same elements or elements with the same action are described with the same reference symbols.
For the definition of the pre-locking position and a final latching position of the secondary locking member 21, the housing 29 has a pre-locking groove 33 and a final latching groove 34, which are developed as elongated recesses and have main axes of orientation that run parallel to the connector face 30 and perpendicular to the locking guide rails 32. The pre-locking groove 33 and the final latching groove 34 are arranged in the housing 29 in such a fashion along a locking direction V of the secondary locking member 21 that proceeding from the assembly guide rails 31, the detent latch 28 first latches onto the pre-locking groove 33 and then into the final latching groove 34 when the secondary locking member 21 moves along the locking direction V. If the detent latch 28 of the secondary locking member 21 engages with the pre-locking groove 33, the secondary locking member 21 is in its pre-locking position. In the final latching position of the secondary locking member 21, the detent latch 28 latches onto the final latching groove 34.
By arranging the secondary locking member 21 within the housing 29, the housing 29 can be easily sealed against moisture, for example by means of a simple conical nipple between the connector and the mating connector, because compared to conventional connector housings, the secondary locking member 21 does not need a lateral opening. In addition, the secondary locking member 21 can be actuated conveniently with the help of the manipulation element 23 via the connector face 30 and its latching position is visible from the connector face 30.
The mating connector ramp 39 is arranged on the mating connector face 37 in such a fashion that the manipulation element 23 of the secondary locking member 21 slides along the mating connector ramp 39 as the connector 35 is being connected to the mating connector 36, if the secondary locking member 21 is not yet in final latching position. The mating connector ramp 39 runs in a plane that is spanned by a first vector that runs in the plane of the mating connector face 37 orthogonally to the locking direction V of the secondary locking member 21, and a second vector, which is orthogonally relative to the first vector and in an angle of 30 degrees to 45 degrees to the connecting axis G of the mating connector 36. The plane in which the mating connector ramp 39 runs intersects a plane of the mating connector face 37 at the accommodation means 40. In this way, the manipulation element 23 of the secondary locking member 21 slides along the mating connector ramp 39 in such a manner that it engages in the accommodation means 40 at the end of the mating connector ramp 39 so that the secondary locking member 21 is additionally secured in its final latching position. The accommodation means 40 is developed as a slot, with an essentially perpendicular lateral side slot in the mating connector face 37. To engage in the slot, the manipulation element 23 protrudes beyond the connector face 30 in the connecting direction S of the connector 29.
The explanations offered with reference to the figures are purely illustrative and should not be understood as limiting. Many changes can be made to the shown embodiments without leaving the scope of protection of the invention, as it is established in the attached claims.
Number | Date | Country | Kind |
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10 2013 019 874 | Nov 2013 | DE | national |
Number | Name | Date | Kind |
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7661987 | Adachi | Feb 2010 | B2 |
8096841 | Hirano | Jan 2012 | B2 |
8550845 | Osterhart | Oct 2013 | B1 |
8727816 | Takahashi | May 2014 | B2 |
8784141 | Ishikawa | Jul 2014 | B2 |
Number | Date | Country | |
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20150147902 A1 | May 2015 | US |