Electrical connector and set including one electrical connector and one accessory

Abstract

Electrical connector (1) comprising an insulating housing (2) having a first housing section (2a) and a second housing section (2b), and a contact insert (3) received in the insulating housing (2), wherein the contact insert (3) has a conductor terminal arranged in the first housing section (2a) and a contact pin terminal (4) arranged in the second housing section (2b), and wherein the insulating housing (2) has in the first housing section (2a) a conductor entry side (5) with a conductor entry opening for inserting an electrical conductor and in the second housing section (2b) a contact pin entry side (6) with a contact pin entry opening (7) for inserting a contact pin (8), characterized in that a positive locking element (9a, 9b, 9c) is formed on the second housing section (2b).which is designed to interact with a mating locking element (12) formed on a mounting surface (10) and / or on a connecting element (11) in order to fix the connector (1) to a support structure (13).

Description

[0001] The invention relates to an electrical connector comprising an insulating housing with a first housing section and a second housing section, and a contact insert received in the insulating housing, wherein the contact insert has a conductor terminal arranged in the first housing section and a contact pin terminal arranged in the second housing section, and wherein the insulating housing has, in the first housing section, a conductor entry side with a conductor entry opening for inserting an electrical conductor and, in the second housing section, a contact pin entry side with a contact pin entry opening for inserting a contact pin. The invention further relates to a set comprising such an electrical connector and an accessory.

[0002] Electrical connectors are a well-known component in electrical connection technology. As electromechanical connection components, they serve to connect flexible and rigid electrical conductors to establish an electrical connection and, thanks to continuously improved plug-in mechanisms, are characterized by secure contact and user-friendly handling.

[0003] During installation, electrical connectors are often attached to a mounting surface of a support structure to securely position and fix them in their operating environment in a defined manner. Such a mounting surface could be, for example, the housing surface of an electrical device or the surface of a printed circuit board. To reduce installation effort and accelerate the assembly process, efforts are being made to further develop existing mounting solutions for electrical connectors and to continuously improve them with regard to simpler mounting approaches in terms of design and operation. In practice, a high degree of application flexibility and functional versatility combined with a compact design of the electrical connector is also desirable.

[0004] Against this background, the invention aims to create a compact, easy-to-handle, and in particular, easy-to-install electrical connector, and optionally to extend the functionality of the electrical connector for different installation requirements. Furthermore, the invention aims to provide a set comprising an electrical connector and an accessory that flexibly improves the handling and functionality of the electrical connector.

[0005] The problem is solved with an electrical connector according to claim 1 and with a set according to claim 26. Advantageous embodiments are disclosed in the dependent claims, the description, and the figures.

[0006] According to the features of independent claim 1, an electrical connector is proposed comprising an insulating housing having a first housing section and a second housing section, and a contact insert received in the insulating housing, wherein the contact insert has a conductor terminal arranged in the first housing section and a contact pin terminal arranged in the second housing section, and wherein the insulating housing has in the first housing section a conductor entry side with a conductor entry opening for inserting an electrical conductor and in the second housing section a contact pin entry side with a contact pin entry opening for inserting a contact pin, wherein a positive locking element is formed on the second housing section.which is designed to interact with a mating locking element formed on a mounting surface and / or on a connecting element in order to fix the connector to a support structure.

[0007] In simplified terms, it is proposed that the electrical connector has a mounting contour in a housing area associated with the contact pin connection, which is configured to create a positive-locking connection with a mating contour. The mating contour may be located on a mounting surface of the support structure and / or on a separate connecting element via which the connector can be attached to the support structure. The electrical connector may, in particular, have several positive-locking elements, which may be formed in different areas of the second housing section, so that the positive-locking connection can be selectively created via a mating-locking element on the mounting surface and / or via a mating-locking element on the connecting element.

[0008] The electrical connector according to the proposed features has the advantage of being easily and precisely mountable to the support structure. In particular, the form of the positive locking element in the second housing section, where the contact pin connection is located, ensures precise and reliable alignment of the second housing section with a contact pin or contact pin strip located on the support structure. This also allows, for example, the contact pin insertion opening provided in the second housing section to be precisely aligned with an existing contact pin.By using a positive locking element to secure the connector to the support structure, an intuitive, particularly tool-free and precisely oriented attachment of the connector to the support structure is possible. The connection between the connector and the support structure can be established directly via a mating positive locking element located on the mounting surface or indirectly via a mating positive locking element formed on a connecting element. Positive locking elements can also be easily formed on an insulating housing, particularly by being manufactured integrally with it, for example, using a suitably adapted injection mold. The positive locking element can be designed to be comparatively small and still effectively secure the connector to the support structure, thus advantageously enabling the connector to be manufactured with a compact design.The positive locking element, or at least an additional positive locking element on the second housing section, can optionally be used for the selective fixing of at least one accessory, as will be explained in more detail below, so that, if desired or required, a functional extension of the connector by means of the accessory and / or an indirect fixing of the connector to the support structure via an accessory designed as a connecting element is possible.

[0009] The electrical connector has an insulating housing and a contact insert contained within the insulating housing. The contact insert can be an electromechanical arrangement, at least partially electrically conductive, configured to form a conductor terminal and a contact pin terminal, and to establish an electrically conductive connection between the conductor terminal and the contact pin terminal. A conductor terminal can, in particular, be an electromechanical terminal configured for connecting a flexible electrical conductor. A contact pin terminal can, in particular, be an electromechanical terminal configured for connecting a rigid electrical conductor. The contact insert can, for example, have an electrically conductive busbar. The contact insert can, for example, have a clamping spring for connecting a flexible electrical conductor to the busbar.The contact insert can, for example, have a socket contact for receiving a contact pin. The socket contact can, for example, have two elastically deflectable socket arms extending essentially parallel to each other for clamping a contact pin between the socket arms. The socket contact can be integrally formed with the busbar.

[0010] The insulating housing accommodates the contact insert. Specifically, the insulating housing essentially completely encloses the contact insert. The insulating housing can be, for example, a plastic housing. The insulating housing protects the contact insert from environmental influences and from contact. The insulating housing has a first housing section and a second housing section. The first housing section and the second housing section divide the insulating housing into two distinct housing areas, which can be separated from each other, for example, along a mechanical or imaginary dividing line, or, in other words, merge into each other along the dividing line.In the first housing section, the conductor connection, for example a clamping spring, is located, while the contact pin connection, for example a socket contact of the contact pin connection, is located in the second housing section. The contact pin connection can also be partially located in the first housing section and extend into the second housing section to such an extent that a contact pin inserted into the contact pin connection runs predominantly or exclusively through the second housing section. A busbar of the contact insert can extend through both the first and second housing sections. The busbar can also be located predominantly or completely in the first housing section. If the busbar is predominantly located in the first housing section, it can partially extend from the first housing section into the second housing section.The insulating housing can be multi-part, for example, comprising a main housing section and a cover section, so that the contact insert can be inserted into the main housing section and this can then be closed with the cover section. According to one embodiment, the second housing section can form the cover section for the first housing section, which is designed as the main housing section. Alternatively, the cover section can, for example, be placed on the main housing section as a side cover and extend over both the first and second housing sections.

[0011] According to the proposed features, a positive locking element is formed on the second housing section. Such a positive locking element can be a geometrically specially designed area of ​​the insulating housing, which is configured to create a positive mechanical connection with a mating element that is geometrically adapted to the positive locking element. The positive locking element can be integrally formed with the insulating housing. The positive locking element and the mating element can be geometrically shaped to interlock or fit together. The shape of the positive locking element and the mating element connected to it can block relative movement of the positive locking element and the mating element in at least one spatial direction. Force transmission occurs via the contacting surfaces of the positive locking element and the mating element.As will be explained later, the positive locking element can have a positive locking contour that projects towards an adjacent surface of the insulating housing, while the counter-locking element has a corresponding negative contour suitable for receiving the positive locking element. Alternatively, the positive locking element can have a negative locking contour that is recessed towards an adjacent surface of the insulating housing and be suitable for receiving a counter-locking element with a corresponding positive locking contour.

[0012] The mating locking element can, for example, be arranged on a mounting surface of the support structure. This allows the connector to be effectively and easily connected to the mounting surface directly via the interaction of the mating locking element and the mating locking element. Alternatively or additionally, the mating locking element can be formed on a connecting element. The connecting element can have a fastening section for attaching the connecting element to the support structure. The fastening section can be connected to a mounting surface of the support structure. The fastening section can have a fastening element, such as a snap-in element, to allow it to be secured to the support structure. The connecting element can be connected to the connector via the mating locking element and to the support structure via the fastening element.In this way, the connector can be indirectly fixed to the support structure via the connecting element. The connecting element can be an accessory component of the electrical connector.

[0013] The support structure can be, for example, the housing of an electrical device, a mounting plate, or a circuit carrier. In particular, the support structure can be a printed circuit board (PCB), such that the connector is designed for mounting on a PCB. The PCB can, for example, have at least one mating locking element for interaction with the positive locking element of the second housing section of the connector. Alternatively or additionally, the PCB can have a fixing element, such as a PCB opening, through which a connecting element, compatible with the connector, can be attached to the PCB.

[0014] According to one embodiment, the conductor terminal can be configured for connecting an electrical conductor that can be inserted into the connector in a conductor insertion direction, and the contact pin terminal can be configured for connecting a contact pin that can be inserted into the connector in a contact pin insertion direction, wherein the conductor insertion direction and the contact pin insertion direction can be substantially perpendicular to each other. The electrical conductor and the contact pin can therefore be inserted into the connector from different spatial directions. This simplifies the handling of the connector depending on the intended operating environment.For example, it is conceivable that one or more contact pins, which may be arranged on a contact pin strip, are positioned in front of the connector on a mounting surface of a support structure, and the connector is placed onto the mounting surface in such a way that the contact pin(s) are inserted into the second housing section and connected to one or more contact pin terminals located therein. An electrical conductor intended for connection to the conductor terminal can be inserted into the connector in a different spatial direction, for example, essentially parallel to the mounting surface. This facilitates the connection of an electrical conductor even when a contact pin is already connected.

[0015] In another embodiment, the conductor terminal, with its conductor insertion direction oriented for connecting an electrical conductor into the connector, can be configured approximately parallel to and opposite to the contact pin insertion direction of the contact pin terminal for connecting a contact pin into the connector. The conductor insertion direction and the contact pin insertion direction are thus essentially parallel to each other. In this case, the conductor insertion can be located on the upper surface of the housing, which is opposite the base or contact pin insertion side of the contact pin terminal.

[0016] According to one embodiment, the conductor entry side and the contact pin entry side can extend in housing planes arranged substantially perpendicular to each other. This also allows an electrical conductor intended for connection to the conductor terminal and a contact pin intended for connection to the contact pin terminal to be inserted into the connector from different spatial directions. The conductor entry side can, for example, be formed by a substantially flat housing surface in which the conductor entry opening for inserting the electrical conductor is formed. The contact pin entry side can, for example, be formed by a substantially flat housing surface in which a contact pin opening for inserting a contact pin is formed. The contact pin entry side can, for example, face a mounting surface of the support structure when viewed in one mounting direction.The contact pin insertion side can, for example, be assigned to a base side of the connector. It is conceivable that the contact pin opening transitions into a through-channel and a contact pin exit opening is formed on a housing surface of the second housing section opposite the contact pin insertion side. Accordingly, a contact pin connected to the contact pin terminal can extend through the second housing section and partially protrude from it.

[0017] According to one embodiment, the second housing section can be arranged on a connector side opposite the conductor entry side. A transition between the first and second housing sections can therefore face away from the conductor entry side. A mechanical or conceptual dividing plane between the first and second housing sections can run parallel to the conductor entry side and be spaced from it along the length of the first housing section. By arranging the second housing section on a connector side opposite the conductor entry side, the conductor connection function and the contact pin connection function of the connector can be defined and spaced apart, thus facilitating handling of the connector and providing spatial separation of functions.

[0018] According to one embodiment, the first housing section and the second housing section can be designed as separate housing components and connected to each other. This allows the contact insert to be easily inserted into the insulating housing, for example, into the first housing section, before the first and second housing sections are joined together. The first and second housing sections can be connected, for example, via a material-fit, force-fit, and / or form-fit connection. Alternatively, the first and second housing sections can also be integrally formed. In this case, the first housing section can transition directly into the second housing section.The integral design of the first and second housing sections makes the connector easy and compact to manufacture, as well as easy to handle and robust. A laterally removable cover extending along both the first and second housing sections can be provided for inserting the contact insert.

[0019] According to one embodiment, the second housing section can have a stepped, recessed positive-locking section in which at least one positive-locking element of the second housing section is formed. This allows for a defined connection area on the second housing section, enabling the spatial separation of different functional areas of the connector. The positive-locking section can, in particular, contain several identical and / or different positive-locking elements. The stepped recess allows for a lower overall height for the positive-locking section than for the conductor connection and the contact pin connection, thus maintaining the connector's compact design.The positive locking section can, for example, form a front side of the connector, which may face away from and be opposite the conductor entry side that forms a rear side of the connector.

[0020] According to one embodiment, the positive locking element can point towards a base side of the second housing section that, viewed perpendicular to the mounting surface in the assembly direction, faces the support structure. This allows for a simple and intuitive mechanical interaction between the positive locking element and a mating positive locking element arranged on a mounting surface of the support structure. Furthermore, a defined alignment of the connector, particularly in the area of ​​its contact pin insertion side, with respect to the support structure and any contact pins arranged on the support structure, is possible. Viewed in the assembly direction, the positive locking element can project onto the mounting surface of the support structure. For example, the positive locking element can be designed to engage with the mating positive locking element when the connector is moved parallel to the mounting surface.The base of the connector can be assigned to a housing surface of the insulating housing that, viewed in a mounting direction, faces the support structure, in particular a mounting surface of the support structure. A contact pin opening can, for example, be formed on the base.

[0021] According to one embodiment, the positive locking element can point towards the front of the second housing section, opposite the conductor entry side. This allows for simple and intuitive mechanical interaction between the positive locking element and a mating positive locking element formed on an accessory. For example, the accessory can be connected to the connector by bringing the mating positive locking element and the positive locking element together on the front of the second housing section. The positive locking element can be configured, for example, so that a mating positive locking element of an accessory can engage with the positive locking element in an insertion direction parallel to the contact pin insertion direction. The positive locking element pointing towards the front of the second housing section can have a main vertical extent parallel to the contact pin insertion direction.The front face can be positioned opposite the conductor entry side. The front face can be substantially parallel to the conductor entry side. The front face can be spaced from the conductor entry side over the entire length of the insulating housing. The front face can be substantially perpendicular to the contact pin entry side.

[0022] According to one embodiment, the positive locking element can be formed on an intermediate wall of the second housing section that extends parallel to the front of the second housing section. This allows, for example, accessories to be attached to the connector in a compact and simple manner. The intermediate wall can, for example, be located adjacent to a transition area between the second and first housing sections. The intermediate wall can be arranged between the front and a rear surface that includes the conductor entry opening, and can extend parallel to these. The contact pin insertion opening of the connector can be located between the intermediate wall and the front surface. If contact pins are inserted into the connector, they can extend essentially parallel to the intermediate wall between the intermediate wall and the front surface.According to one possible design, an accessory can be configured in such a way that it can interact simultaneously with spaced-apart counter-form locking elements, a positive locking element on the front, and a positive locking element on the intermediate wall.

[0023] According to one embodiment, several positive locking elements can be formed on the second housing section. This allows, as needed, the selection of one or more positive locking elements for connection with a mating positive locking element of a mounting surface and / or a connecting element. Furthermore, the use of multiple positive locking elements to fix the connector to the support structure increases the reliability of the mechanical connection between the connector and the support structure. The multiple positive locking elements can be identical and / or different, for example, having identical or different positive locking contours. Different positive locking contours can, for example, have different positive locking geometries or be configured differently with respect to a positive or negative positive locking contour.The positive locking elements can be formed in the same or different areas or on the same or different housing sides of the second housing section.

[0024] According to one embodiment, a first positive locking element can point towards the base of the second housing section, a second positive locking element can point towards the front of the second housing section, and / or a third positive locking element can be formed on an intermediate wall of the second housing section. This provides several positive locking options for creating a connection between the connector and the support structure.

[0025] For example, the positive locking element facing the base can be configured to interact with a mating positive locking element located on a mounting surface of the support structure, and the positive locking element facing the front can be configured to interact with a mating positive locking element formed on a connecting element, so that the connector can be optionally fixed to the support structure either directly via a positive locking connection to the mounting surface or indirectly via a positive locking connection with a connecting element that can be connected to the support structure. This results in increased assembly flexibility and ease of handling of the connector. The second positive locking element and / or a third positive locking element on an intermediate wall of the second housing section extending parallel to the front can enable the additional arrangement of accessories on the connector.

[0026] According to one embodiment, the connector can be multi-pole, and at least one positive locking element per pole can be formed on the second housing section. Multi-pole connectors can have several contact inserts arranged side by side, each of which can have a conductor connection and a contact pin connection. This allows for multiple connection options per connector. The contact inserts can be arranged, for example, in connection compartments separated from each other by insulating walls or, with sufficient spacing, at least in pairs in a common connection compartment.With contact inserts arranged side by side, the connector can be structurally widened, allowing for multiple positive locking elements on the second housing section, depending on the number of poles. This enables secure and stable fixing of the connector to the support structure and / or variable arrangement of an accessory. According to one possible design, at least one positive locking element per pole can be formed on different sides of the second housing section, for example, one facing the bottom and one facing the front, thus providing increased assembly flexibility.

[0027] According to one embodiment, the positive locking element can have or form a positive locking projection. A positive locking projection can be a positive locking contour, where the positive locking element represents a structure projecting from an adjacent surface of the insulating housing. The positive locking element can thus form a local extension of the insulating housing in the second housing section. The positive locking projection can be geometrically designed such that an undercut with a positive locking contour of the mating positive locking element can be formed when the positive locking element and the mating positive locking element engage. The positive locking projection can be received in a recess of the mating positive locking element.

[0028] According to one embodiment, the positive locking element can have or form a positive locking recess. A positive locking recess can be a negative positive locking contour, where the positive locking element represents a structure that is recessed relative to an adjacent surface of the insulating housing. The positive locking element can thus form a local depression in the insulating housing within the second housing section. The positive locking recess can be geometrically designed such that an undercut with a positive locking contour of the mating positive locking element can be formed when the positive locking element and the mating positive locking element engage. The positive locking recess can form a receptacle for the mating positive locking element. Positive locking projections and positive locking recesses can be easily produced on an insulating housing.They can optionally be combined on the second housing section to increase assembly flexibility. They enable a compact and effective positive-locking connection for direct and / or indirect fixation of the connector to the support structure. In principle, it is conceivable that two adjacent positive-locking projections form an intermediate positive-locking recess. Here, either a positive-locking projection or a positive-locking recess can be used to interact with a mating positive-locking element.

[0029] According to one embodiment, the positive locking element can have or form a dovetail contour or a receptacle for a mating positive locking element with a dovetail contour. This enables a simple, intuitive, effective, and reliable creation of a positive locking interaction between the positive locking element and a correspondingly shaped mating negative locking element. For example, the positive locking element can have a dovetail contour, and the mating negative locking element can have a receptacle that has a corresponding negative contour to the dovetail contour of the positive locking element. Alternatively, the positive locking element can have a corresponding negative contour as a receptacle for a mating negative locking element with a dovetail contour. A dovetail contour can have at least one inclined surface that can support a corresponding counter-inclined surface of the negative contour and form an undercut with it.

[0030] According to one embodiment, the positive locking element can have or form a T-contour or a receptacle for a mating positive locking element with a T-contour. This enables a simple, intuitive, effective, and reliable creation of a positive locking interaction between the positive locking element and a correspondingly shaped mating negative locking element. For example, the positive locking element can have a T-contour, and the mating negative locking element can have a receptacle that has a corresponding negative contour to the T-contour of the positive locking element. Alternatively, the positive locking element can have a corresponding negative contour as a receptacle for a mating negative locking element with a T-contour. A T-contour can have a transverse rib projecting from both sides of a longitudinal rib, which can bear against a corresponding mating surface of the negative contour and form an undercut with it.

[0031] According to one embodiment, the positive locking element can have or form an L-shaped contour or a receptacle for a mating negative locking element with an L-shaped contour. This enables a simple, intuitive, effective, and reliable creation of a positive locking interaction between the positive locking element and a correspondingly shaped mating negative locking element. For example, the positive locking element can have an L-shaped contour, and the mating negative locking element can have a receptacle that has a corresponding negative contour to the L-shaped contour of the positive locking element. Alternatively, the positive locking element can have a corresponding negative contour as a receptacle for a mating negative locking element with an L-shaped contour. An L-shaped contour can have a transverse rib projecting from one side of a longitudinal rib, which can bear against a corresponding mating surface of the negative contour and form an undercut with it.In principle, a T-shaped negative contour can accommodate not only a T-shaped positive locking element, but also an L-shaped positive locking element, thus offering increased flexibility with such a positive locking contour.

[0032] According to one embodiment, at least one positive locking element facing the front can be formed on the second housing section, which has or forms a positive locking recess for a mating positive locking element, and at least one positive locking element facing the bottom can be formed on the second housing section, which has or forms a positive locking recess for a mating positive locking element. This provides a versatile combination of positive locking elements on the second housing section, which can be used selectively for attaching the connector to the support structure. The positive locking element facing the front or the bottom can, for example, have or form a receptacle for a mating positive locking element with a dovetail contour, a T-contour, or an L-contour.According to alternative design options, both positive locking elements can be designed as positive locking projections, or one positive locking element can be designed as a positive locking projection and the other positive locking element as a positive locking recess.

[0033] According to one embodiment, a positive locking element can be formed on the second housing section, which is configured to interact with a mating locking element formed on a connecting pin. This provides a simple, intuitive, and compact fastening option for fixing the connector to the support structure. The connecting pin can form a connecting element for fixing the connector to the support structure. The connecting pin can have an elongated web shape. The connecting pin can be an accessory component of the electrical connector. The connecting pin can have a mounting section for attachment to the support structure, a shaft, and the mating locking element. The mating locking element can, for example, be formed integrally with the shaft of the connecting pin.The fastening section can, for example, have an elastically deformable locking edge that can be guided through a locking opening in the support structure and locked onto it. The positive locking element of the second housing section can have a design adapted to the mating positive locking element of the connecting pin with regard to geometry and dimensions, and thus be configured for the positive locking reception of such a connecting pin.

[0034] According to one embodiment, the connector can be configured to be fixed to a mounting surface of a printed circuit board (PCB). This allows the connector to be advantageously used as a PCB connector, thereby expanding its range of applications. The connector can, for example, have dimensions suitable for PCBs. The connector can, for instance, have a conductor terminal with a conductor entry direction that runs parallel to the mounting surface of the PCB. The positive locking element of the second housing section of the connector can be designed to fix the connector directly to the mounting surface of the PCB and / or to fix the connector indirectly to the mounting surface of the PCB via a connecting element.The mounting surface of the printed circuit board (PCB) can, for example, have a mating locking element compatible with the positive locking element of the connector. The mounting surface of the PCB can, for example, have a fastening element, such as a PCB opening, with which a connecting element, such as a connecting pin, positively connected to the connector can be securely fixed to the mounting surface. At least one contact pin, in particular a contact pin strip, can be arranged on the mounting surface of the PCB. The connector can be configured to be mounted on the mounting surface of the PCB such that the contact pin or several contact pins, for example, several contact pins of the contact pin strip, can be aligned with one or more contact pin terminals of the connector.In particular, the connector can be arranged and fixed on the mounting surface in such a way that the contact pin or contact pins can be automatically inserted into contact pin insertion openings arranged appropriately on the connector.

[0035] According to one embodiment, the positive locking element can be configured to interact with a mating positive locking element of an accessory component of the connector. This allows for an optional functional extension of the connector and / or a selective indirect connection of the connector to the carrier structure via a connecting element provided as an accessory. The positive locking connection of the connector to an accessory enables easy handling of the connector and increased user comfort. The connector accessory can, for example, be part of a set containing a connector, as described below. The accessory can be considered a separate component from the carrier structure and the connector.The positive locking connection between the connector and the accessory means that the accessory can be detached from the connector without damage, thus providing increased flexibility in arranging and removing accessories for the connector.

[0036] According to further training, the accessory can be designed as a connecting element, bridging element, or touch protection element. The connecting pin allows the connector to be indirectly connected to the support structure. A bridging element allows two or more poles of the connector to be electrically connected. The connector can, for example, have a positive locking element for each pole, so that the bridging element can be securely and easily positioned at a selected location on the poles to be bridged. A touch protection element can increase the user safety of the connector. The touch protection element can, for example, be designed as a cover or cap. Its width can, for example, correspond to the pitch of the connector to allow for individual positioning on each pole.Alternatively, the touch protection element can be designed to be positioned across all poles of the connector. The touch protection element can, for example, cover or conceal one or more contact pins inserted into the connector, thus acting as a barrier to prevent contact with a contact pin.

[0037] According to one embodiment, the insulating housing can have a fastening section for mechanically securing the connector to the support structure. This advantageously supports and secures a direct or indirect positive-locking connection between the connector and the support structure. The mechanical fastening can provide an additional fastening option beyond the positive-locking fixation of the connector to the support structure. The fastening section can, for example, be screwed to a mounting surface of the support structure. Accordingly, the fastening section can be designed to form a screw connection with the support structure and may, for this purpose, have a screw opening, which can be located, for example, in a mounting flange of the insulating housing.Alternatively or additionally, the fastening locking section can be configured to form a snap-fit ​​connection with the support structure and, for example, have a snap-fit ​​structure for locking the connector to a corresponding mating snap-fit ​​structure on the support structure. Alternatively or additionally, the fastening locking section can be configured to form a further positive-locking connection with the support structure and, for example, have another positive-locking structure for interaction with another mating positive-locking structure on the support structure.

[0038] According to one embodiment, the fastening locking section can be formed on the second housing section. This allows for a targeted, local increase in the connection reliability between the connector and the support structure. By forming the fastening locking section on the second housing section, it is located close to the positive-locking direct or indirect connection to the support structure, ensuring high effectiveness. The fastening locking section can, for example, be formed on the base, the front, and / or on a side surface of the second housing section that extends substantially perpendicular to the base and front.

[0039] Alternatively or additionally, the securing element can be formed on the first housing section. This ensures a uniform force distribution into the insulating housing and a secure, stable fixation of the connector to the support structure. The securing element can be located, for example, on a base side, a rear side with the conductor entry opening, and / or on a side surface of the first housing section that extends substantially perpendicular to the rear and base sides.

[0040] According to one embodiment, the conductor connection can be designed as a spring-loaded clamping connection. This allows for a particularly convenient and secure connection of flexible electrical conductors to the conductor connection. A spring-loaded clamping connection can have a clamping spring that is arranged in the area of ​​a busbar of the connector's contact insert in such a way that an electrical conductor can be clamped between a clamping leg of the clamping spring and the busbar. Optionally, the connector can have an actuating element associated with the conductor connection, which is designed to open and / or close a clamping point between the clamping spring and the busbar.

[0041] The task is also solved with a set comprising an electrical connector with one of the aforementioned features and an accessory component featuring a mating locking element suitable for interaction with the positive locking element of the second housing section of the electrical connector. The proposed set allows for optional functional expansion of the connector and / or an optional indirect connection of the connector to the support structure via a connecting element provided as an accessory, thus achieving high application flexibility and functional versatility in a compact design of the electrical connector. The set can include several identical and / or different accessories. For example, the set can include at least one connecting element per pole of the connector.For example, in addition to the connector, the set may include a connecting element, a bridging element, and / or a touch protection element. According to one embodiment, an accessory may be designed such that it can interact simultaneously with spaced-apart counter-locking elements, a positive locking element on the front, and a positive locking element on the intermediate wall of the second housing section.

[0042] According to one embodiment, the accessory can be designed as a connecting element for fixing the connector to the support structure. This allows for an indirect connection of the connector to the mounting surface as an alternative or supplement to a direct connection. The connecting element can, for example, be designed as a connecting pin. The mating element of the connecting element can, for example, be designed as a positive-locking projection and, in particular, have or form a dovetail contour, a T-contour, or an L-contour.

[0043] According to one embodiment, the accessory can be designed as a bridging element. This allows two or more poles of the connector to be electrically connected. The connector can, for example, have a positive locking element for each pole, so that the bridging element can be securely and easily positioned at a selected location on the poles to be bridged. The mating positive locking element of the bridging element can, for example, be designed as a positive locking projection and, in particular, have or form a dovetail contour, a T-contour, or an L-contour.

[0044] According to one embodiment, the accessory can be designed as a touch protection element. A touch protection element can increase the user safety of the connector. The touch protection element can, for example, be designed as a cover or cap. The touch protection element can, for example, cover or conceal contact pins inserted into the connector, so that the touch protection can, in particular, act as a barrier to prevent contact with a contact pin. The mating element of the touch protection element can, for example, be designed as a positive locking projection and, in particular, have or form a dovetail contour, a T-contour, or an L-contour.

[0045] According to one embodiment, the set can additionally include a contact pin strip. This advantageously allows several contact pins to be provided in a defined arrangement and orientation relative to each other for connection with the contact pin terminals of the connector. A contact pin strip can be an elongated carrier with several contact pins arranged side by side. The contact pin strip can be configured to be fixed to a mounting surface of the carrier structure. For this purpose, the contact pin strip can have a fastening element. In particular, the contact pin strip can be configured to be arranged on a mounting surface of a printed circuit board. The connector can be positioned and fixed on the mounting surface in such a way that the contact pins of the contact pin strip can be automatically inserted into contact pin insertion openings arranged appropriately on the connector.The contact pin strip can be adapted to the connector in terms of its geometric shape and dimensions, for example having contact pin spacings that correspond to the distances between the contact pin insertion openings of the second housing section.

[0046] In general, in connection with this application, the words "ein / eine" are not to be understood as numerals, unless expressly defined otherwise, but as indefinite articles with the meaning of "at least one".

[0047] The invention allows for various embodiments and is explained in more detail below with reference to exemplary embodiments and the accompanying drawings. These show, in schematic form: Fig. 1a - an electrical connector positioned on a mounting surface according to an embodiment in a perspective front view in a state not positively connected to the mounting surface; Fig. 1b - the one in Fig. 1a Connector shown in a perspective front view in a positively engaged state connected to the mounting surface; Fig. 2a - the electrical connector according to the embodiment and connecting elements positively connected to the connector in a perspective front view in a state not connected to the mounting surface; Fig. 2b - the one in Fig. 2a Connector shown in a perspective front view in a state connected to the mounting surface; Fig. 2c - the one in Fig. 2b connector shown in a side view in a state connected to the mounting surface; Fig. 3a - the electrical connector according to the embodiment and a bridging element positively connected to the connector in a perspective front view; Fig. 3b - the one in Fig. 3a connector shown in a cutaway front view; Fig. 4a - the electrical connector according to the embodiment in a perspective side view without touch protection element; Fig. 4b - the one in Fig. 4a connector shown and touch protection elements positively connected to the connector; Fig. 5a - the electrical connector according to the embodiment with a fastening locking section in a perspective side view in an unsecured state; Fig. 5b - the one in Fig. 5a electrical connector shown with a fastening locking section in a perspective side view in a secured state; Fig. 6a - an electrical connector with contact pin insertion side on the top of the housing and touch protection cap; Fig. 6b - the electrical connector from Fig. 6a with circuit board mounted from above.

[0048] The Fig. 1a and Fig. Figure 1b shows an electrical connector 1 positioned on a mounting surface 10 of a support structure 13 designed as a mounting plate, according to one embodiment. The electrical connector 1 has an insulating housing 2 with a first housing section 2a and a second housing section 2b. Several, more precisely three, contact inserts 3 are accommodated in the insulating housing 2, which are partially in Fig. 3b are shown. Accordingly, the connector 1 is designed as a multi-pole connector 1 and has three poles. The contact inserts 3 each have a busbar (not shown in detail), a conductor connection arranged in the first housing section 2a for connecting electrical conductors (not shown in detail), and a contact pin connection 4 arranged in the second housing section 2b, which is Fig. 3b is illustrated to a limited extent, for the connection of rigid conductors in the form of, for example, in the Fig. 3a and Fig. 3b shown contact pins 8. The conductor connection can be designed, in particular, as a spring-loaded clamp connection. For this purpose, a clamping spring (not shown) can be arranged on the busbar, with which a particularly flexible electrical conductor can be clamped between the clamping spring and the busbar.

[0049] It can be seen that the first housing section 2a has a fastening structure which includes a fastening locking section 19 for mechanically securing the connector to the support structure 13, for example in the form of a snap-fit ​​edge. This mechanical locking provides an additional fastening option that goes beyond the positive locking fixation of the connector 1 to the support structure 13.

[0050] In the illustrated embodiment, the fastening locking section 19 is designed to form a further positive locking connection with the support structure 13. The support structure 13 may have a further positive locking structure (not shown) for engaging with the fastening section 19.

[0051] The insulating housing 2 has, in the first housing section 2a, a conductor entry side 5 with conductor entry openings (not shown) for inserting electrical conductors. The conductor terminals of the contact inserts 3 are designed for connecting the electrical conductors. These can be inserted into the connector 1 in a conductor entry direction L. The second housing section 2b is arranged on a connector side opposite the conductor entry side 5, so that there is a defined spatial separation between the conductor connection function and the contact pin connection function of the connector 1. The second housing section 2b has a contact pin entry side 6 with contact pin entry openings 7 for inserting, for example, into the Fig. 3a and Fig. 3b shows contact pins 8, which are arranged on a contact pin strip 8a. The contact pin strip 8a can be fixed to the mounting surface 10. The contact pin terminals 4 are designed for connecting the contact pins 8. They can be connected as shown in the Fig. 3a and Fig. 3b is indicated as socket contacts with two elastically deflectable socket arms extending parallel to each other. The contact pins 8 can be inserted into the connector 1 in a contact pin insertion direction K. The conductor insertion direction L and the contact pin insertion direction K are essentially perpendicular to each other, so that flexible electrical conductors and contact pins 8 can be inserted into the connector 1 from different spatial directions. In addition, the conductor insertion side 5 and the contact pin insertion side 6 extend in housing planes arranged essentially perpendicular to each other, thus facilitating the establishment of an electrical connection with the connector 1.

[0052] In an alternative embodiment, the contact pin insertion side 6 can open onto the housing top, which is opposite the support structure 13, in order to insert contact pins from the housing top into the contact pin terminals 4. This design is advantageous, for example, if the support structure 13 is, for instance, a housing wall or cover wall, and this arrangement of cover and connector is placed on a contact pin arrangement projecting from a printed circuit board.

[0053] The first housing section 2a and the second housing section 2b are designed as separate housing components and connected to each other. The first housing section 2a and the second housing section 2b merge into each other along a dividing plane 2c. The first housing section 2a can form a main housing part, and the second housing section 2b can form a cover part with which the main housing part can be closed. This ensures simple manufacturing of the connector 1, as the contact inserts 3 can be easily inserted into the insulating housing 2 before it is closed. The first housing section 2a and the second housing section 2b can be connected to each other, for example, via a positive-locking and / or friction-locking connection, such as a snap-fit ​​connection.

[0054] On the second housing section 2b, several, more precisely three, first positive locking elements 9a, second positive locking elements 9b, and third positive locking elements 9c are formed integrally with the insulating housing 2. The first positive locking elements 9a are configured to interact with mating positive locking elements 12 arranged on the mounting surface 10 in order to fix the connector 1 to the support structure 13. The second positive locking elements 9b are configured to interact with the Fig. 2a and Fig. The third positive locking elements 9c shown in Figure 2b are arranged with counter-locking elements 12 of connecting elements 11 to fix the connector 1 to the support structure 13. The third positive locking elements 9c are arranged to interact with counter-locking elements 12 of, for example, a [connecting element 1] in the Fig. 3a and Fig. 3b shown, designed as a bridging element 18a, and for interaction with counter-locking elements 12 of, for example, in Fig. The accessory 18, designed as a touch protection element 18b as shown in Figure 4b, is provided. The first, second, and third positive locking elements 9a, 9b, 9c make it possible, on the one hand, to fix the connector 1 flexibly and securely to the mounting surface 10 and, on the other hand, to optionally expand the functionality of the connector 1 by means of accessories 18 that can be connected to the connector 1. Thus, a compact, easy-to-assemble and handle connector 1 with optionally expandable functionality is provided for different installation requirements. The formation of the first positive locking elements 9a and the second positive locking elements 9b in the second housing section 2b allows the contact pin connections 4 of the connector 1 to be precisely aligned with the one in the Fig. 3a and Fig. The contact pin strip 8a shown in Figure 3b, which is fixed to the mounting surface 10, is aligned. The positive locking connection can be easily established, particularly without tools, directly with a mating locking element 12 of the mounting surface 10 or indirectly via connecting elements 11 with mating locking elements 12. The design of the third positive locking element 9c in the second housing section 2b advantageously allows the use of accessories 18 that have a function with respect to the contact pins 8 accommodated in the second housing section 2b. For example, a touch protection element 18b can prevent contact with the contact pins 8, or a bridging element 18a can enable electrical bridging between the contact pins 8.

[0055] For example, in the Fig. 1a and Fig. As can be seen in Figure 1b, the second housing section 2b has a stepped, positive-locking section 14 arranged on the second housing section 2b, which is stepped away from the adjacent outline of the second housing section 2b and in which the first positive-locking elements 9a and the second positive-locking elements 9b are formed, thus providing a defined connection area on the second housing section 2b. The positive-locking section 14 can have a lower height than other areas of the second housing section 2b, as shown, in order to obtain a compact connector 1.

[0056] The first positive locking elements 9a point towards a base side 15 of the second housing section 2b, so that they can engage with mating positive locking elements 12 on the mounting surface 10. The base side 15 is a housing side of the connector 1, which, for example, Fig. 2a indicates that, viewed in an assembly direction M, it faces the support structure 13. As, for example, in the Fig. 1a and Fig. As can be seen in Figure 1b, the first positive locking elements 9a are designed as positive locking recesses, i.e., they have a negative positive locking contour. They each form a receptacle for a counter-positive locking element 12 arranged on the mounting surface 10 with a dovetail contour, which enables a simple and reliable positive locking connection. Fig. Figure 1a shows the positive locking elements 9a and the counter-positive locking elements 12 in a spaced-apart state. Fig. Figure 1b shows that the positive locking elements 9a and the counter-positive locking elements 12 are positively connected to each other. This can be achieved, for example, by displacing the connector 1 along the mounting surface 10 in a direction parallel to the mounting surface 10, whereby the positive locking elements 9a and the counter-positive locking elements 12 are brought towards each other and engage with each other. Due to the special shape, the housing areas adjacent to the positive locking recesses can also be considered positive locking projections.

[0057] The second positive locking elements 9b point towards a front side 16 of the second housing section 2b, which faces away from the conductor entry side 5, so that they are as in the Fig. 2a and Fig. 2b shown with counter-locking elements 12 on connecting elements 11 or as in Fig. 3a shows that the second positive locking elements 9b can be engaged with the opposing positive locking elements 12 of an accessory 18. The second positive locking elements 9b can be engaged as shown in the Fig. 1a and Fig. 1b indicates a substantially vertical extension parallel to the contact pin insertion direction K. As, for example, in the Fig. 1a and Fig. As can be seen in Figure 1b, the second positive locking elements 9b are designed as positive locking recesses, i.e., they have a negative positive locking contour. Each of these forms a receptacle for a counter-positive locking element 12 formed on a connecting element 11, with a dovetail contour, enabling the simple and reliable production of a positive locking connection, as is the case, for example, in the Fig. 2a and Fig. 2b is shown schematically.

[0058] The third positive locking elements 9c are formed on an intermediate wall 17 of the second housing section 2b extending parallel to the front face 16 of the second housing section 2b, so that they, as in the Fig. 3a, Fig. 3b and Fig. 4b shows that they can be engaged with the counter-locking elements 12 of an accessory 18. The partition 17 can run between the front face 16 and the conductor entry side 5, in particular essentially parallel to the separating plane 2c, as shown. As, for example, in the Fig. 1a and Fig. As can be seen in Figure 1b, the third form-locking elements 9c are designed as form-locking recesses, i.e., they have a negative form-locking contour. Each of these forms a receptacle for a counter-form-locking element 12 formed on an accessory part 18, with a dovetail contour, which enables the simple and reliable production of a form-locking connection, as shown in the Fig. 3a, Fig. 3b and Fig. 4b is shown schematically.

[0059] Alternatively or in addition to positive locking elements 9a, 9b, 9c or counter-positive locking elements 12 with a dovetail contour, L-contours or T-contours can also be used, with which a simple and safe production of a positive locking connection is also possible.

[0060] In connection with the multi-pole design of the connector 1, a first positive locking element 9a, a second positive locking element 9b, and a third positive locking element 9c are formed on the second housing section 2b for each pole. This ensures that, with multiple connection options per connector 1, a secure and stable fixation of the connector 1 to the mounting surface 10 of the support structure 13 can be achieved. Furthermore, it allows for variable arrangement of accessories 18 on the connector 1.

[0061] The Fig. Figures 2a to 2c show the electrical connector 1 according to the embodiment and connecting elements 11 positively connected to the connector 1. The connecting elements 11 are components separate from the connector 1 and can, for example, be provided as accessories 18 and connected to the connector 1. By means of mating locking elements 12 formed on the connecting elements 11, which interact with the second positive locking elements 9b and can form a positive connection, the connector 1 can be indirectly fixed to the mounting surface 10 of the support structure 13, which in this embodiment is designed as a printed circuit board 13a. According to the illustrated embodiment, the connecting elements 11 are designed as connecting pins 11a.The connecting pins 11a each have a shaft 11b on which a mating locking element 12 is arranged, in particular integrally formed with the shaft 11b. The connecting pins 11a each have a fastening element 11c, which is designed as an elastically deformable locking element and can be guided through a circuit board opening of the circuit board 13a and locked onto it. Fig. Figure 2a shows how the connector 1 can be guided onto the mounting surface 10 in the mounting direction M. Fig. 2b and Fig. Figure 2c shows that the connector 1 is securely fixed to the support structure 13 via the connecting elements 11, whereby the fastening elements 11c extend through a respective circuit board opening and snap into place on an opening edge of the circuit board opening.

[0062] The Fig. 3a and Fig. Figure 3b shows the electrical connector 1 according to the embodiment and a bridging element 18a positively connected to the connector 1, which constitutes an accessory part 18 of the connector 1. The bridging element 18a allows two or more poles of the connector 1 to be electrically connected to each other. Fig. Figure 3a shows a perspective front view, illustrating the anchoring of the counter-form locking elements 12 in the second form locking elements 9b, while Fig. Figure 3b illustrates the bridging function of the bridging element 18a in a sectional view.

[0063] The Fig. 4a and Fig. Figure 4b shows the electrical connector 1 according to the embodiment in the Fig. 4a without touch protection and in Fig. 4b with touch protection elements 18b positively connected to the connector 1, which constitute accessories 18 of the connector 1. A touch protection element 18b, which is a cap for covering the contact pin 8, can increase the user safety of the connector 1. According to the illustrated embodiment, one touch protection element 18b is provided for each contact pin 8.

[0064] According to the in the Fig. In the embodiments shown in 2a to 2c, 3a and 3b as well as 4a and 4b, the support structure 13 is designed as a printed circuit board 13a and the mounting surface 10 of the support structure 13 is designed as a printed circuit board surface of the printed circuit board 13a, so that the connector 1 is designed as a printed circuit board connector.

[0065] The Fig. 5a and Fig. Figure 5b shows the electrical connector 1 according to the embodiment with a fastening locking section 19 in a perspective side view in Fig. 5a in an unsecured state and in Fig. 5b in a secured state. The fastening locking section 19 is formed on the second housing section 2b according to the illustrated embodiment. The fastening locking section 19 serves as a mechanical locking device in the sense of additionally fixing the connector 1 to the support structure 13. According to the Fig. 5a and Fig. In the embodiment shown in Figure 5b, a locking structure designed as a locking edge is provided in the fastening locking section 19 of the second housing section 2b. This locking structure is suitable for creating a locking connection with a counter-locking structure 21 designed as a locking arm on the support structure 13. The locking arm has a locking lug at its movable free end, which, in the locked state, forms a positive connection with the fastening locking section 19. For this purpose, the locking lug engages a locking edge bounded laterally by walls.

[0066] The Fig. Furthermore, a set 20 with an electrical connector 1 and at least one accessory 18 can be removed from parts 2a to 2c, 3a and 3b, and 4b. The accessory 18 or accessories 18 each have at least one mating locking element 12 for interaction with the second positive locking elements 9b and / or with the third positive locking elements 9c of the second housing section 2b. In the Fig. In sections 2a to 2c, the accessories 18 are designed as connecting elements 11, specifically as connecting pins 11a. Fig. 3a and Fig. 3b the accessory part 18 is designed as a bridging element 18a. In Fig. 4b the accessories 18 are designed as touch protection elements 18b. The set 20 can also include various accessories 18, for example, the connecting pins 11 can be combined with one or more bridging elements 18a or with touch protection elements 18b. The set 20 can also include, for example, a Fig. 3a and Fig. 3b show contact pin strip 8a.

[0067] With a set 20 comprising an electrical connector 1 and at least one accessory 18, an optional functional extension of the connector 1 and / or an optional indirect connection of the connector 1 to the carrier structure 13 via a connecting element 11 provided as an accessory 18 is possible, thus achieving high application flexibility and functional diversity with a compact design of the electrical connector 1.

[0068] Fig. 6a and Fig. Figure 6b shows an electrical connector 1, which is essentially the same as the one described above. Fig. The structure shown in 1a to 5b is as follows. The contact pin terminals 4 are open towards the top of the insulating housing 2, which is opposite the base 15 for resting on a support structure 13, so that inserted contact pins 8 protrude upwards away from the base 15.

[0069] From the Fig.Figure 6b shows that a printed circuit board 24 can be positioned from above onto the top surface of the insulating housing 2. The contact pins 8 can be soldered to the printed circuit board 24 and protrude from the plane of the printed circuit board 24. The connector 1 is then placed onto the printed circuit board 24 with its contact pin terminal 4, and the contact pins 8 are inserted into the contact pin terminals 4. The connector 1 can also be placed onto a support structure 13 with its base 15 and thus connected.

[0070] An accessory 18, for example in the form of a bridging element 18a or a touch protection element 18b, can then be inserted from the base 15 into the insulating housing 2 in the area of ​​the contact pin connection 4. This allows contact pins 8 to be electrically connected and thus bridged, and / or the contact pins 8 to be shielded from the outside by the insulating material of the bridging element 18a or touch protection element 18b and thus protected from contact. The bridging element 18a or touch protection element 18b can have retaining arms 22 that project laterally along the insulating housing 2 and lock into the fastening locking section 19. The accessory 18 can be designed as a touch protection cap that extends across the width of the insulating housing 2 and has two opposing retaining arms 22 that can be locked onto the insulating housing 2 in opposing directions of force.

[0071] The electrical connector can have actuating elements 23 on the conductor entry side 5, each of which interacts with a spring-loaded clamping connection arranged in the insulating housing for clamping an electrical conductor, in order to open the spring-loaded clamping connection for inserting or removing an electrical conductor. The actuating elements 23 can be designed as actuating levers, as shown, or as actuating pushbuttons, and the like. Such actuating levers 23 can likewise also be present on the connectors 1 of the other previously described embodiments. Reference symbol list 1 Electrical connector 2 insulating housings 2a first housing section 2b second housing section 2c Separation plane 3 Contact insertion 4 Contact pin connection 5. Ladder entry page 6 Contact pin insertion side 7 Contact pin insertion opening 8 contact pins 8a Contact pin strip 9a first positive locking element 9b second positive locking element 9c third positive locking element 10 Mounting surface 11 Connecting element 11a Connecting pin 11b shaft 11c Fastening element 12 Counter-locking element 13 Support structure 13a Printed circuit board 14 Form-fit section 15 Basic page 16 Front 17 Partition wall 18 Accessories 18a Bridging element 18b Touch protection element 19 Fastening securing section 20 sets 21 Counter-rest structure 22 Support arm 23 Actuating element 24 circuit boards K Contact pin insertion direction L conductor insertion direction M Mounting direction

Claims

[1] Electrical connector (1) comprising an insulating housing (2) having a first housing section (2a) and a second housing section (2b) and a contact insert (3) received in the insulating housing (2), wherein the contact insert (3) has a conductor terminal arranged in the first housing section (2a) and a contact pin terminal (4) arranged in the second housing section (2b), and wherein the insulating housing (2) has in the first housing section (2a) a conductor entry side (5) with a conductor entry opening for inserting an electrical conductor and in the second housing section (2b) a contact pin entry side (6) with a contact pin entry opening (7) for inserting a contact pin (8), characterized by, that a positive locking element (9a, 9b, 9c) is formed on the second housing section (2b) which is designed to interact with a counter-positive locking element (12) formed on a mounting surface (10) and / or on a connecting element (11) in order to fix the connector (1) to a support structure (13). [2] Electrical connector (1) according to claim 1, wherein the conductor terminal is configured for connecting an electrical conductor which can be inserted into the connector (1) in a conductor insertion direction (L), and wherein the contact pin terminal (4) is configured for connecting a contact pin (8) which can be inserted into the connector (1) in a contact pin insertion direction (K), characterized by that the conductor insertion direction (L) and the contact pin insertion direction (K) are essentially perpendicular to each other. [3] Electrical connector (1) according to claim 1 or 2, characterized by, that the conductor entry side (5) and the contact pin entry side (6) extend in housing planes arranged substantially perpendicular to each other. [4] Electrical connector (1) according to any one of the preceding claims, characterized by , that the second housing section (2b) is located on a connector side opposite the conductor entry side (5). [5] Electrical connector (1) according to any one of the preceding claims, characterized by , that the first housing section (2a) and the second housing section (2b) are designed as separate housing components and are connected to each other. [6] Electrical connector (1) according to any one of the preceding claims, characterized by , that the second housing section (2b) has a positive locking section (14) that is set off from the second housing section (2b) in a step-like manner, in which at least one positive locking element (9a, 9b, 9c) of the second housing section (2b) is formed. [7] Electrical connector (1) according to any one of the preceding claims, characterized by , that the positive locking element (9a, 9b, 9c) points towards a base side (15) of the second housing section (2b) which, viewed in an assembly direction (M), faces the support structure (13). [8] Electrical connector (1) according to any one of the preceding claims, characterized by , that the positive locking element (9a, 9b, 9c) points towards a front side (16) of the second housing section (2b) which is facing away from the conductor entry side (5). [9] Electrical connector (1) according to any one of the preceding claims, characterized by , that the positive locking element (9a, 9b, 9c) is formed on an intermediate wall (17) of the second housing section (2b) extending parallel to the front side (16) of the second housing section (2b). [10] Electrical connector (1) according to any one of the preceding claims, characterized by, that several positive locking elements (9a, 9b, 9c) are formed on the second housing section (2b). [11] Electrical connector (1) according to claim 10, characterized by , that a first positive locking element (9a) points towards the base side (15) of the second housing section (2b), a second positive locking element (9b) points towards the front side (16) of the second housing section (2b) and / or a third positive locking element (9c) is formed on an intermediate wall (17) of the second housing section (2b). [12] Electrical connector (1) according to claim 10 or 11, characterized by , that the connector (1) is designed to be multipole and that at least one positive locking element (9a, 9b, 9c) per pole is formed on the second housing section (2b). [13] Electrical connector (1) according to any one of the preceding claims, characterized by , that the positive locking element (9a, 9b, 9c) has or forms a positive locking projection. [14] Electrical connector (1) according to any one of the preceding claims, characterized by , that the positive locking element (9a, 9b, 9c) has or forms a positive locking recess. [15] Electrical connector (1) according to any one of the preceding claims, characterized by , that the form-locking element (9a, 9b, 9c) has or forms a dovetail contour or a receptacle for a counter-form-locking element (12) with a dovetail contour. [16] Electrical connector (1) according to any one of the preceding claims, characterized by , that the positive locking element (9a, 9b, 9c) has or forms a T-contour or a receptacle for a counter-positive locking element (12) with a T-contour. [17] Electrical connector (1) according to any one of the preceding claims, characterized by , that the positive locking element (9a, 9b, 9c) has or forms an L-contour or a receptacle for a counter-positive locking element (12) with an L-contour. [18] Electrical connector (1) according to any one of the preceding claims, characterized by , that on the second housing section (2b) at least one positive locking element (9a, 9b, 9c) is formed which points towards the front (16) and which has or forms a positive locking recess for a counter-positive locking element (12), and that on the second housing section (2b) at least one positive locking element (9a, 9b, 9c) is formed which points towards the base side (15) and which has or forms a positive locking recess for a counter-positive locking element (12). [19] Electrical connector (1) according to any one of the preceding claims, characterized by , that a positive locking element (9a, 9b, 9c) is formed on the second housing section (2b), which is designed to interact with a counter-positive locking element (12) formed on a connecting pin (11a). [20] Electrical connector (1) according to any one of the preceding claims, characterized by, that the connector (1) is designed to be fixed to a mounting surface (10) of a printed circuit board (13a). [21] Electrical connector (1) according to any one of the preceding claims, characterized by , that the positive locking element (9a, 9b, 9c) is configured to interact with a counter-positive locking element (12) of an accessory part (18) of the connector (1). [22] Electrical connector (1) according to claim 21, characterized by that the accessory (18) is designed as a connecting element (11), bridging element (18a) or touch protection element (18b). [23] Electrical connector (1) according to any one of the preceding claims, characterized by , that the insulating housing (2) has a fastening securing section (19) for mechanically securing the connector (1) to the support structure (13). [24] Electrical connector (1) according to claim 23, characterized by, that the fastening securing section (19) is formed on the second housing section (2b). [25] Electrical connector (1) according to any one of the preceding claims, characterized by that the conductor connection is designed as a spring-loaded clamp connection. [26] Set (20) comprising an electrical connector (1) according to one of the preceding claims and an accessory (18) comprising a mating element (12) suitable for interaction with the positive locking element (9a, 9b, 9c) of the second housing section (2b) of the electrical connector (1). [27] Set (20) according to claim 26, characterized by , that the accessory (18) is designed as a connecting element (11) for fixing the connector (1) to the support structure (13). [28] Set (20) according to claim 26 or 27, characterized by , that the accessory (18) is designed as a bridging element (18a). [29] Set (20) according to any one of claims 26 to 28, characterized by , that the accessory (18) is designed as a touch protection element (18b). [30] Set (20) according to any one of claims 26 to 29, characterized by , that the set (20) additionally includes a contact pin strip (8a).

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