ELECTRICAL CONNECTOR AND CONNECTOR ARRANGEMENT

Abstract

The present application discloses an electrical connector and a connector arrangement comprising the electrical connector.The electrical connector comprises a connector housing that delimits a housing cavity and a connection arrangement arranged in the housing cavity, the connection arrangement comprising a base body and multiple electrical connections, the base body comprising multiple connection receptacles extending into the base body on at least one base body surface and spaced apart to form a row, the at least one base body surface facing an inner surface of the connector housing to delimit a first slot and a second slot spaced apart from each other, each electrical connection being received in a connection receptacle and comprising a mounting section and a first arm and a second arm extending in opposite directions from the mounting section, and each arm comprising a counter section projecting into a corresponding slot.

Description

Technical field The present application relates generally to the field of electrical connectors, in particular an electrical connector and a connector arrangement comprising such an electrical connector. State of the art In systems such as communication systems, data storage systems, data transmission systems, or battery management systems for applications like new energy vehicles, electrical connectors are commonly used to electrically connect two electrical components of the same or different types, thereby bringing other electrical components (e.g., printed circuit boards, PCBs) that are electrically connected to these two components into an electrically connected state. For example, two flexible printed circuit boards (FPCs) can be electrically connected via an FPC / FPC connector, two flexible flat cables (FFCs) can be electrically connected via an FFC / FFC connector, and a flexible printed circuit board and a flexible flat cable can be electrically connected via an FPC / FFC connector. FPC / FFC connectors are typically designed and manufactured according to specific standards to interact with the two electrical components being connected and to meet the requirements for signal and / or power transmission. Developing FPC / FPC and FPC / FFC connectors that meet specific application requirements presents several challenges. FPC / FFC connectors must possess various properties that satisfy the mechanical and electrical requirements of electronic systems. Disclosure of the invention To solve the aforementioned problems, the present application provides an electrical connector and a connector arrangement comprising this electrical connector. The electrical connection of the electrical connector of the present application comprises at least a first contact section and a second contact section, each projecting in the same direction into a first slot for electrically connecting a first electrical means and into a second slot for electrically connecting a second electrical means. Electrical means of the same or different types can be inserted into the two slots of the present electrical connector. In a first aspect of the present disclosure, an electrical connector is provided which is configured for electrically connecting a first electrical means and a second electrical means, comprising: a connector housing made of an insulating material and defining a housing cavity extending through the connector housing in a first direction; and a terminal arrangement arranged in the housing cavity, comprising a base body and multiple electrical terminals, wherein the base body comprises a first base body surface and a second base body surface, which are opposite each other in a second direction perpendicular to the first direction, and multiple terminal receptacles extending from at least one of the base body surfaces in the second direction into the base body.wherein the multiple terminal receptacles are spaced apart in a third direction perpendicular to both the first and second directions and are each elongated in the first direction, wherein the at least one base body surface of an inner surface of the connector housing, which delimits the housing cavity, faces in the second direction to delimit between them a first slot and a second slot spaced apart in the first direction, and wherein the first slot and the second slot are each configured to receive a portion of the first electrical means and a portion of the second electrical means, respectively, wherein each of the multiple electrical terminals is received in one of the multiple terminal receptacles and comprises: a mounting section configured to hold the electrical terminal in a corresponding terminal receptacle; and a first arm and a second arm,extending in opposite directions from the mounting section, each of the first and second arms having: an initial clearance to a bottom surface of the corresponding connector receptacle, which allows the arm to be deflected towards the bottom surface of the corresponding connector receptacle; and comprising a counter section projecting out of the corresponding connector receptacle towards the inner surface, the counter section of the first arm projecting into the first slot and the counter section of the second arm projecting into the second slot. In one embodiment, each of the multiple electrical terminals further comprises: a third arm extending from the mounting section parallel to the first arm and offset from the first arm in the second direction away from the base surface of the terminal receptacle to allow the third arm to be deflected towards the first arm into a gap between the two; and a fourth arm extending from the mounting section parallel to the second arm and offset from the second arm in the second direction away from the base surface of the terminal receptacle to allow the fourth arm to be deflected towards the second arm into a gap between the two; wherein the third arm and the fourth arm each comprise a counter-section extending into the first and fourth arms, respectively.second slot, wherein the opposite section of the third arm and the opposite section of the first arm each comprise a contact section that projects from the corresponding connection receptacle and projects in the second direction by an equal distance beyond the at least one base body surface, and wherein the opposite section of the fourth arm and the opposite section of the second arm each comprise a contact section that projects from the corresponding connection receptacle and projects in the second direction by an equal distance beyond the at least one base body surface. In one embodiment, the first arm of each of the multiple electrical connections extends further in the second direction from the mounting section than the third arm, so that the contact sections of the opposing sections of the third arm and the first arm are aligned and spaced apart in the first direction, and the second arm of each of the multiple electrical connections extends further in the second direction from the mounting section than the fourth arm, so that the contact sections of the opposing sections of the fourth arm and the second arm are aligned and spaced apart in the first direction. In one embodiment, the contact sections of the opposing sections of the first, second, third and fourth arm of each of the multiple electrical terminals are all aligned in a first direction. In one embodiment, the opposing sections of the first arm and the second arm of each of the multiple electrical connections each have a first inclined surface that extends obliquely from the respective contact section in the second direction to a free end of the respective arm in the first direction; and / or the opposing sections of the third arm and the fourth arm of each of the multiple electrical connections each have a second inclined surface that extends obliquely from the respective contact section in the second direction to a free end of the respective arm in the first direction. In one embodiment, the gap between the third arm and the first arm of each of the multiple electrical terminals extends to a location within the assembly section that is aligned with the third arm in the first direction; and / or the gap between the fourth arm and the second arm of each of the multiple electrical terminals extends to a location within the assembly section that is aligned with the fourth arm in the first direction. In one embodiment, the mounting section of each of the multiple electrical connections comprises a first surface configured to rest against the bottom surface of the respective connection receptacle, wherein the first arm and the second arm of each of the multiple electrical connections project onto or near the first surface of the mounting section. In one embodiment, the roots of the third arm and the fourth arm of each of the multiple electrical connections, which are connected to the assembly section, are designed such that the roots lie in the second direction on or near surface parts of the at least one base body surface that are opposite the first and second slots when the electrical connection is mounted in the respective terminal receptacle. In one embodiment, each of the first, second, third and fourth arms of each of the multiple electrical terminals extends in the first direction away from the mounting section or extends obliquely in the second direction away from the first surface while extending away from the mounting section. In one embodiment, the first surface of the mounting section of each of the multiple electrical connections comprises at least one first projection that extends outwards in a second direction, and the bottom surface of the corresponding connection receptacle is provided with at least one first groove for receiving the at least one first projection. In one embodiment, the mounting section of each of the multiple electrical connections comprises a recess formed by the first surface in the mounting section, wherein the at least one first protrusion extends from a base surface of the recess beyond the first surface. In one embodiment, the first projection of each of the multiple electrical terminals has a projecting length in the second direction that is equal to or less than the depth of the corresponding first groove. In one embodiment, the at least one first projection of each of the several electrical terminals comprises two or more first projections spaced apart in the first direction, and the at least one groove comprises two or more correspondingly arranged first grooves. In one embodiment, the at least one first projection of each of the several electrical connections has, in at least a part of its projecting length, a portion whose cross-section changes perpendicular to the projecting direction. In one embodiment, the mounting section of each of the multiple electrical connections comprises a second surface opposite the first surface and at least two second protrusions that project outwards from the second surface outwards from the connection receptacle, wherein the at least two second protrusions are spaced apart in the first direction. In one embodiment, each of the multiple electrical connections comprises two second protrusions that extend an equal distance from the second surface in the second direction. In one embodiment, each of the multiple electrical connections further comprises at least one additional second projection between the two second projections, wherein the at least one additional second projection extends in the second direction from the second surface by a distance which is less than or equal to that of the two second projections. In one embodiment, the at least one base body surface comprises a projection extending towards the inner surface, wherein the first slot and the second slot are spaced apart in the first direction by the projection, and the at least two second projections extend from a receiving section of the connection receptacle in which the projection is located towards the inner surface. In one embodiment, the projection comprises ribs that extend outwards between adjacent connection receptacles and are elongated in a first direction, wherein the ribs and / or the second elevations are at the same height in the second direction. In one embodiment, the electrical connection is a one-piece stamped part. In one embodiment, the connector housing includes a stop feature configured to engage with the projection when the connector assembly is inserted into the housing cavity, in order to prevent further insertion of the connector assembly. In one embodiment, the inner surface comprises a first surface section and a second surface section corresponding in the first direction to the first slot and the second slot, and a middle surface section connecting the two surface sections, wherein the stop feature is: a flange projecting inwards into the housing cavity between the first surface section and the middle surface section; or a stepped surface formed by offsetting the first surface section from the middle surface section towards the housing cavity. In one embodiment, the connector housing includes a fixing device for fixing the connector housing to an external component. In one embodiment, the fixing device comprises a nose extending outwards from an outer surface of the connector housing, the nose being provided with a threaded bore. In one embodiment, the fixing device comprises a locking element connected to an outer surface of the connector housing, and the locking element is provided with a locking slot suitable for locking an external component. In one embodiment, the locking element comprises one or more claws that define the locking slot. In one embodiment, the at least one base body surface comprises only the first base body surface. In one embodiment, the at least one base body surface comprises both the first base body surface and the second base body surface, wherein the multiple connection receptacles comprise a first plurality of connection receptacles formed on the first base body surface and a second plurality of connection receptacles formed on the second base body surface, wherein the multiple electrical connections comprise a first plurality of electrical connections corresponding to the first plurality of connection receptacles and a second plurality of electrical connections corresponding to the second plurality of connection receptacles, and wherein the inner surface comprises a first inner surface and a second inner surface, each opposite the first base body surface and the second base body surface, respectively;wherein the first plurality of connection receptacles and the second plurality of connection receptacles, as well as the first plurality of electrical connections and the second plurality of electrical connections, are each arranged oppositely in the second direction, wherein the first slot comprises: a first slot bounded between the first base body surface and the first inner surface and a first slot bounded between the second base body surface and the second inner surface, and wherein the second slot comprises: a second slot bounded between the first base body surface and the first inner surface and a second slot bounded between the second base body surface and the second inner surface. In one embodiment, the first plurality of electrical connections and the second plurality of electrical connections are identically constructed. In one embodiment, each of the first plurality of connection points is aligned with a corresponding one of the second plurality of connection points in the second direction; or each of the first plurality of connection points is offset to a corresponding one of the second plurality of connection points in the third direction. In one embodiment, the connector housing comprises a support section arranged near the first slot, which includes a slot opening that communicates with the first slot in the third direction and is elongated in the second direction. According to a second aspect of the present disclosure, a connector arrangement is provided, comprising: an electrical connector as described above; a first electrical means comprising a first electrical connection arrangement, wherein the first electrical connection arrangement is inserted into the first slot such that electrical connections of the first electrical connection arrangement are electrically connected to contact sections of the multiple electrical connections of the electrical connector extending into the first slot; and a second electrical means comprising a second electrical connection arrangement, wherein the second electrical connection arrangement is inserted into the second slot such that electrical connections of the second electrical connection arrangement are electrically connected to contact sections of the multiple electrical connections of the electrical connector extending into the second slot. In one embodiment, the second electrical means further comprises a second central housing made of an insulating material and carrying the second electrical connection arrangement, wherein both the second central housing and the second electrical connection arrangement are partially inserted into the second slot. In one embodiment, the first electrical means further comprises a first central housing made of an insulating material and carrying the first electrical connection arrangement, wherein both the first central housing and the first electrical connection arrangement are partially inserted into the first slot. In one embodiment, each of the first and second electrical connection arrangements is a flat conductor connection arrangement comprising a flat conductor connection, or a socket connection arrangement comprising a socket-shaped electrical connection. In one embodiment, the connector housing of the electrical connector comprises a support section arranged near the first slot, which includes a slot opening that communicates with the first slot in the third direction and is elongated in the second direction, wherein the first electrical connection arrangement is partially inserted into the first slot through the slot. In one embodiment, the first electrical connection arrangement is a flat conductor connection arrangement comprising a flat conductor connection, and the second electrical connection arrangement is a flat conductor connection arrangement comprising a flat conductor connection, or a socket connection arrangement consisting of a socket-shaped electrical connection. In one embodiment, the electrical connection arrangement, which includes the flat conductor connection, is FFC or FPC. According to a third aspect of the present disclosure, an electrical connector is provided comprising: a connector housing made of an insulating material and defining a housing cavity extending through the connector housing in a first direction; and a terminal arrangement arranged in the housing cavity, comprising a base body and several electrical terminals supported by the base body, each of the several electrical terminals comprising a retaining section as well as a pin section and an arm section extending oppositely from the retaining section, the pin section having a pin contact section and the arm section comprising an arm contact section, the base body having a first base body surface and a second base body surface opposite each other in a second direction perpendicular to the first direction.wherein at least one of the first base body surfaces and the second base body surface has multiple connection receptacles extending into the base body in the second direction, wherein the multiple connection receptacles are spaced apart in a third direction perpendicular to both the first and second directions, wherein each of the multiple electrical connections is configured such that, when mounted in a corresponding connection receptacle: an arm-counter section of its arm section projects out of the connection receptacle and into a slot between the at least one base body surface and an opposing inner surface of the connector housing, and its pin section projects out of the connection receptacle in the first direction and is cantilevered in the housing cavity,wherein an initial clearance is formed between the arm section of each of the multiple electrical connections and a base of the corresponding connection receptacle, which allows the arm section to be deflected towards the base of the connection receptacle. In one embodiment, the base body comprises a first part and a second part which are connected to each other in the first direction, wherein a first surface part of the at least one base body surface, provided by the first part, is offset in the second direction from a second surface part of the first base body surface, provided by the second part, towards the inner surface of the connector housing, wherein the slot in the second direction is limited between the second surface part and the inner surface of the connector housing. In one embodiment, the retaining section of each of the multiple electrical connections is received in a receiving section of the corresponding connection receptacle located in the first part, wherein the arm section is received in a receiving section of the corresponding connection receptacle located in the second part, and wherein the pin section projects from the first part in the first direction. In one embodiment, the arm section of each of the multiple electrical connections comprises a first arm extending from the holding section, wherein the first arm has a first arm contact section. In one embodiment, the arm section of each of the multiple electrical terminals further comprises a second arm extending from the holding section parallel to the first arm and offset in the second direction from the first arm away from the bottom of the corresponding terminal receptacle in order to form a gap between the second arm and the first arm. In one embodiment, the second arm of each of the multiple electrical connections comprises a second arm contact section, wherein the first arm contact section and the second arm contact section are aligned and spaced apart in the first direction and project an equal distance from the corresponding connection receptacles. In one embodiment, the pin contact section of each of the multiple electrical terminals is a pin contact surface that extends in a plane defined by the first direction and the third direction. In one embodiment, the pin section of each of the multiple electrical connections has a tapered tip. In one embodiment, each of the multiple electrical connections comprises a first connection element and a second connection element, wherein the first connection element comprises the arm section and a first connecting section, wherein the second connection element comprises the pin section and a second connecting section, and wherein the first connecting section and the second connecting section are connected to each other to form the retaining section. In one embodiment, the first connecting section and the second connecting section are joined together by at least one of the following processes: snapping, welding, riveting and positive locking. In one embodiment, the first connecting section comprises two first legs extending opposite to the arm section and spaced apart from each other, wherein the two first legs comprise two first protrusions projecting towards each other, wherein the two first protrusions each comprise an arm contact section, wherein the arm contact sections define a minimum first distance and are configured for elastic clamping to a second thickness of the second connecting element, and wherein the first distance is smaller than the second thickness. In one embodiment, the second connecting section comprises two second legs extending opposite to the pin section and spaced apart from each other, wherein the two second legs comprise two second protrusions projecting towards each other, wherein the two second protrusions each comprise a pin contact section, wherein the pin contact sections define a minimum second distance and are configured to elastically clamp onto a first thickness of the first connecting element, and wherein the second distance is smaller than the first thickness. In one embodiment, the arm contact sections of the two first protrusions are aligned in the second direction. In one embodiment, the pin contact sections of the two second protrusions are offset from each other in the third direction. In one embodiment, the first connecting element is a plate-shaped element with the first thickness and the second connecting element is a plate-shaped element with the second thickness. In one embodiment, the first thickness is smaller than the second thickness. In one embodiment, the first thickness is approximately 0.2 mm. In one embodiment, the second thickness is 0.4 to 0.5 mm. In one embodiment, the first connection element of the electrical connection and the base body of the connection arrangement comprise features that engage with each other when the electrical connection is inserted into the corresponding connection receptacle. In one embodiment, one of the first connection element and the base body of the connection arrangement comprises a limiting block, and the other comprises a limiting groove suitable for receiving the limiting block. In one embodiment, the base body has an end face, wherein the pin section protrudes from the terminal recess on the end face, and wherein the end face includes a bulge located between electrical terminals adjacent in the third direction. In one embodiment, the connector housing includes a nose with a threaded bore; and / or includes a detent element with a detent slot for engaging with an external component. According to a fourth aspect of the present disclosure, a connector arrangement is provided, comprising: an electrical connector as described above; a first electrical means comprising a first electrical connection arrangement, wherein the first electrical connection arrangement is configured to be inserted into the slot to be electrically connected to the arm contact sections of the multiple electrical terminals of the electrical connector; and a second electrical means comprising a second electrical connection arrangement, wherein the second electrical connection arrangement comprises a socket-shaped electrical terminal, and wherein the second electrical connection arrangement is suitable for insertion into the housing cavity to be electrically connected to the pin sections of the multiple electrical terminals of the electrical connector. In one embodiment, the first electrical connection arrangement of the first electrical means is FFC or FPC. In one embodiment, the socket-shaped electrical connection is a crimp connection for a cable. In one embodiment, the second electrical means further comprises a cable connected to the crimp terminal. In one embodiment, the first electrical means comprises a first central housing that carries the first electrical connection arrangement, wherein the first central housing comprises an elastic snap-fit ​​structure and the connector housing comprises a hook section configured to snap into the elastic snap-fit ​​structure. In one embodiment, the first electrical means further comprises a CPA component configured to lock the elastic latching structure and the hook section in an engaged state. The electrical connector of the present application enables an electrical connection between electrical means comprising the same or different types of electrical connection arrangements. The electrical means suitable for the electrical connector according to the present application can be an electrical connection arrangement comprising a flat conductor connection or an electrical connection arrangement comprising a socket-type connection. The flat conductor connection can be a more flexible FPC or FFC connection or a more rigid board-to-board connection. The socket-type electrical connection can be a crimp connection for a cable.Therefore, the electrical connector of the present application can at least meet the requirements for the electrical connection between flat conductor connection arrangements, between a flat conductor connection arrangement and a cable connection arrangement (example of a socket connection arrangement), exhibit a high degree of universality and be used in a battery management system or another area of ​​electronic device assembly. The two-arm structure of each electrical connection of the electrical connector in this application provides a two-contact electrical connection (or two contact points) with an electrical connection of an inserted external electrical device, ensuring the stability and reliability of the electrical connection and effectively preventing transient disconnection. The two-contact electrical connection design can meet power supply requirements for high current and multiple pins. The two elastic arms of the electrical connection of the electrical connector of the present application are designed as a long cantilever structure, which allows for maximum elastic contact force to be achieved in a limited space and ensures a high degree of uniformity of the forces acting on the individual arms. This, in turn, ensures the durability of the electrical connector as well as the reliability and stability of the electrical connection. Each contact section of the electrical connection is chamfered to guide the insertion and engagement of the electrical connection of the external electrical means. This facilitates the insertion and engagement of the corresponding electrical connections, prevents retraction of the pins, and eliminates the need for excessive insertion forces. The electrical connector features two rows of electrical terminals and can meet application requirements for a high number of pins. The two rows of electrical terminals are staggered, which minimizes the dimensions, especially the height, of the electrical connector and saves installation space. Brief description of the drawings Fig. 1 is an exploded view of an electrical connector according to an embodiment of the present application, comprising a connector housing and a terminal arrangement. Fig. 2 is a partially enlarged view of the terminal arrangement of the electrical connector of Fig. 1. Fig. 3 is a schematic view of an electrical terminal of the terminal arrangement of the electrical connector of Fig. 1. Fig. 4 is a schematic view of a base body of the terminal arrangement of the electrical connector of Fig. 1. Fig. 5 is a schematic view of one of the electrical terminals. Fig. 6 is a sectional view of a connector arrangement comprising the electrical connector of Fig. 1. Fig. 7 is an exploded view of an electrical connector according to a further embodiment of the present application, wherein the connector housing has a different structure. Fig. 8 is a side view of the electrical connector of Fig. 7.Figure 9 is a sectional view of a connector arrangement according to a further embodiment of the present application. Figure 10 is an assembly view of an electrical connector according to a further embodiment of the present application. Figure 11 is another schematic view of the electrical connector of Figure 10. Figure 12 is a schematic view of the electrical connector of Figure 10, in which the connector housing and the connection arrangement are separated. Figure 13 is a schematic structural view of an electrical connection of the electrical connector of Figure 10. Figure 14 is a schematic structural view of a first connection element of the electrical connection of Figure 13. Figure 15 is a schematic structural view of a second connection element of the electrical connection of Figure 13. Figure 16 is a schematic structural view of a limiting block and a limiting groove of the electrical connector of Figure 10.Fig. 17 is an enlarged view of the area designated “A” in Fig. 16. Fig. 18 shows a spacer bulge formed on the base body of the electrical connector of Fig. 10. Fig. 19 is an enlarged view of the area designated “B” in Fig. 18. Fig. 20 shows an example of a fixing device comprising the connector housing of the electrical connector of the present application. Fig. 21 shows another example of a fixing device comprising the connector housing of the electrical connector of the present application. Fig. 22 is a schematic structural view of a connector arrangement according to a further embodiment of the present application. Fig. 23 is an exploded view of a first electrical means of the connector arrangement of Fig. 22. Fig. 24 is an exploded view of a second electrical means of the connector arrangement of Fig. 22.Figure 25 shows a schematic structural view of an elastic locking structure on a first central housing of a first electrical means of a connector arrangement and a CPA component. Figure 26 is a sectional view showing the interaction of the elastic locking structure, the hook section, and the CPA component. Designs Electrical connectors are used in many electronic systems to connect two electrical means. The electrical means can be any type of electrical means within the scope of this application, independent of the electrical connector of the present application, and mechanically and electrically connectable to it. Hereinafter, it is also referred to as an "external electrical means" or "externally pluggable electrical means." For example, the electrical means can be another electrical connector, but is not limited to this. The electrical connector joins the two electrical means together, thereby forming a connector assembly. Electrical connectors and connector assemblies must possess properties that meet the mechanical and electrical requirements of electronic systems. For example, electrical connectors and connector assemblies must exhibit sufficiently high safety and reliability. An electrical connector, for instance, must have sufficiently high dielectric strength (dielectric withstand voltage performance). Another example is the desirable compactness of the electrical connector and connector assembly within the electronic system. A further example is the desirable ease of hot-swapping. Finally, a desirable feature is the ease of assembly and / or disassembly of the connector assembly in confined spaces. The inventors have identified and considered design techniques for such an electrical connector, possessing properties that meet the mechanical and electrical requirements of electronic systems. This technique can realize an electrical connector and connector assembly that is compact, highly safe and reliable, and easier to assemble and disassemble, while simultaneously fulfilling the mechanical and electrical requirements specified by standards such as USCAR. This technique is particularly advantageous in electrical adapter systems. The electrical connector according to the present application is configured to connect two electrical means of the same or different types in order to transmit electrical energy and / or signals between the two electrical means. The electrical means used in conjunction with and in cooperation with the electrical connector according to the present application is comprehensively described as an electrical connection arrangement, and the electrical connection arrangement may comprise: a flat conductor connection arrangement, the electrical connection of which is a flat conductor connection, or a socket connection arrangement, the electrical connection of which is a socket-shaped electrical connection. In the present application, the term "flat conductor connection" (or "flat conductor") can refer to an electrical connection component with a flat connection end. In some embodiments, the "flat conductor connection" can be a relatively flexible, electrically conductive connection. For example, the flat conductor connection arrangement can be a flexible printed circuit board (FPC) or a flexible ribbon cable (FFC). In other embodiments, the "flat conductor connection" can be a relatively rigid, electrically conductive connection, for example, a board-to-board or board-side connection, and consequently, the flat conductor connection arrangement can be a board-to-board connector. In the present application, the term "socket-type connector" includes a cable connector for joining a cable, for example, but not limited to, a crimp connector, or any other form of socket-type connector. Accordingly, the "socket connector arrangement" of the present application includes, but is not limited to, a cable connector arrangement comprising a cable connector (e.g., a crimp connector). Therefore, the electrical connector of the present application can realize at least the following: an electrical connection between a first electrical means (e.g., a flat conductor connector) comprising a flat conductor terminal arrangement and a second electrical means (e.g., another flat conductor connector) comprising a flat conductor terminal arrangement, or an electrical connection between a first electrical means (e.g., a flat conductor connector) comprising a flat conductor terminal arrangement and a second electrical means (e.g., a socket connector) comprising a socket terminal arrangement. It is evident from this that the electrical connector of the present application is highly versatile and applicable in a battery management system or any other area of ​​electronic device assembly. Each electrical connection of the electrical connector of the present application has a structure with two elastic arms, which provides an electrical connection with two contact sections (or two contact points) to an electrical connection of an external electrical means, thus ensuring the stability and reliability of the electrical connection and effectively preventing transient disconnection. The form of the electrical connection with two contact sections can meet the power supply requirements for high current and multiple pins. The two elastic arms of the electrical connection of the electrical connector of the present application are designed as a long cantilever structure, which allows for maximum elastic contact force to be achieved in a limited space and ensures a high degree of uniformity of the forces acting on the individual arms. This, in turn, ensures the durability of the electrical connector as well as the reliability and stability of the electrical connection. Each contact section of the electrical connection is chamfered to guide the insertion and engagement of the electrical connection of the external electrical means. This facilitates the insertion and engagement of the corresponding electrical connections, prevents retraction of the pins, and eliminates the need for excessive insertion forces. The electrical connector features two rows of electrical terminals and can meet application requirements for a high number of pins. The two rows of electrical terminals are staggered, which minimizes the dimensions, especially the height, of the electrical connector and saves installation space. In the following, some embodiments of the present application are described in detail with reference to the drawings. It is understood that these embodiments are not intended to limit the present disclosure. Furthermore, features of the embodiments of the present application may be combined with one another, provided they are not contradictory. Reference is first made to Figures 1-6, which show an electrical connector 100. The electrical connector 100 can comprise a connector housing 10 made of an insulating material (e.g., plastic) and a connection assembly 20 housed within the connector housing 10. The connection assembly 20 can comprise a base body 40 and several electrical terminals 60 supported by the base body 40. Figure 1 shows a view with the connector housing 10 and the connection assembly 20 separated from each other; Figure 2 shows a partially enlarged view of the connection assembly 20; Figure 3 is a view of the several electrical terminals 60 of the connection assembly 20; Figure 4 is a view of the base body 30 of the connection assembly 20; Figure 5 shows one of the electrical terminals 60. As shown in Fig. 1, the connector housing 10 defines a housing cavity 15 that extends through the connector housing 10 in a first direction L. The connection arrangement 20 can be inserted into or mounted in the housing cavity 15 in the first direction L, forming a first mating connection 16 and a second mating connection 18 on the two opposite sides (a first side L1 and a second side L2) of the electrical connector 10 in the first direction L, each configured to connect a first electrical means and a second electrical means. The connector housing 10 can serve as a support frame for the connection arrangement 20. In a second direction T perpendicular to the first direction L, the housing cavity 15 is defined by a first inner surface 11 and a second inner surface 13 of the connector housing 10, which are opposite each other. The base body 40 of the connection arrangement 20 has a first base body surface 42 and a second base body surface 44, which are opposite each other in the second direction T. The first base body surface 42 and the second base body surface 44 each extend parallel to a plane defined by the first direction L and a third direction A, wherein the third direction A is perpendicular to both the first direction L and the second direction T. The base body 40 comprises a first projection 42a extending substantially outwards from the first base body surface 42 in the second direction T, the first projection 42a projecting from an approximately central part of the first base body surface 42 in the first direction L, thereby dividing the first base body surface 42 into a first surface part 42b on the first side L1 of the first projection 42a and a second surface part 42c (Fig. 2) on the second side L2 of the first projection 42a. In the first direction L, the first inner surface 11 of the connector housing 10 comprises a first surface section 11b, a second surface section 11a, and a third surface section 11c (as shown in Fig. 6), which correspond to the first surface part 42b, the first projection 42a, and the second surface part 42c of the first base body surface 42 of the base body 40 inserted into the connector housing. Thus, when the connection arrangement 20 is inserted into the housing cavity 15, a first slot 45a (shown in Fig. 6) is defined between the first surface part 42b of the first base body surface 42 of the base body 40 and the first surface section 11b of the first inner surface 11 of the connector housing 10, and a second slot 45b (shown in Fig. 6) is defined.(shown in Figure 6) is bounded between the second surface part 42c of the first base body surface 42 of the base body 40 and the third surface section 11c of the first inner surface 11 of the connector housing 10. In the first direction L, the first slot 45a and the second slot 45b are spaced apart from each other by the first projection 42a of the base body 40 of the connection arrangement 20.The first slot 45a and the second slot 45b are configured to accommodate, when the first electrical means and the second electrical means are connected to the first counterpart 16 and second counterpart 18 respectively, a plug-in part of the first electrical means and a plug-in part of the second electrical means, so that electrical terminals of the first electrical means inserted in the first slot 45a are in electrical communication with electrical terminals of the second electrical means inserted in the second slot 45b via the electrical terminals of the connection arrangement 20. The dimensions of the first slot 45a and the second slot 45b in the second direction can be designed as required. In some embodiments, the first slot 45a can be configured to receive part of a first central housing of the first electrical means, such that the electrical connections carried by this part are exposed in the first slot 45a and are electrically connected to the electrical connections of the connection arrangement 20 of the electrical connector 100 (Fig. 6). In this case, the dimension of the first slot 45a in the second direction can be comparatively large. In some other embodiments, the first slot 45a can be configured to directly receive part of an electrical connection arrangement of the first electrical means, so that this part is partially exposed in the first slot 45a and is electrically connected to the electrical terminals of the connection arrangement 20 of the electrical connector 100 (Fig. 9). In this case, the first slot 45a can be dimensioned accordingly smaller. The sectional view in Fig. 6 shows that the first surface section 11b of the first inner surface 11 of the connector housing 10 is substantially flush with the second surface section 11a in the first direction L, which corresponds to the first projection 42a of the first base body surface 42 of the base body 40. Optionally, the first surface section 11b is slightly further away from the first base body surface 42 of the base body 40 in the second direction T than the second surface section 11a. The third surface section 11c of the connector housing 10 is arranged further away from the first base body surface 42 of the base body 40 in the second direction T than the middle second surface section 11a. The first inner surface 11 of the connector housing 10 includes a flange 17 that projects into the housing cavity 15 between the first surface section 11b and the second surface section 11a (e.g., in the second direction T). The flange 17 projects from the first inner surface 11 by such a distance that it engages with a corresponding feature of the connection assembly 20 when the connection assembly 20 is inserted into the housing cavity 15 in the first direction L from the second side L2 via the second mating connection 18, in order to indicate to an operator that the connection assembly 20 is correctly inserted and to prevent over-insertion of the connection assembly 20. As shown, the corresponding feature of the connection arrangement 20 can be the first projection 42a on the first base body surface 42 of the base body 40. It is conceivable that this corresponding feature could also be the mounting section 65 (see Fig. 5) of the electrical terminals 60A of the connection arrangement 20, or both. Additionally or alternatively, the corresponding feature of the connection arrangement 20 could also be any other structure provided by the base body 40 and / or one or more of the electrical terminals 60A that can engage with the flange 17. It is conceivable that the flange 17 could extend over the entire extent or dimension of the housing cavity 15 in the third direction A, or over a portion or some interrupted portions of this extent or dimension. Alternatively, if the relative dimensions of the first surface section 11b and the second surface section 11a in the second direction T are dimensioned such that the connection arrangement 20 can be inserted from the first side L1 via the first counter-connection 16 into the housing cavity 15, the flange 17, which fulfills the aforementioned stop function, can be provided between the second surface section 11a and the third surface section 11c. Similar to the first internal surface 11, which comprises three sections 11b, 11a and 11c corresponding to the three parts 42b, 42a and 42c of the first base body surface 42 of the base body 40, the housing cavity 15 may sometimes be described, for the sake of simplicity, as comprising three corresponding cavity sections. Returning to Fig. 1-5, the base body 40 of the electrical connector 100 comprises several terminal receptacles 50A extending from the first base body surface 42 in the second direction T into the base body 40, the several terminal receptacles 50A being spaced apart in the third direction A and forming a row, and each terminal receptacle 50A being configured to receive or accommodate an electrical terminal 60A. Each terminal receptacle 50A is elongated in the first direction L, extending over the entire first projection 42a and extending from the first projection 42a to the first side L1 and the second side L2, and terminating within portions of the base body 40 corresponding to the first slot 45a and the second slot 45b.This means that the opposite ends of each terminal receptacle 50A in the first direction L are located in the parts of the base body 40 that correspond to the first slot 45a and the second slot 45b. Each terminal receptacle 50A does not extend through the base body 40 in the first direction L. In the second direction, the terminal receptacle 50A also terminates within the base body 40 and has a bottom surface 55 (Fig. 6). The electrical connection 60A, when it is inserted into the terminal 50A or in the second direction T into the terminal 50A, has at least one counterpart section which (in the second direction T) protrudes from the terminal 50A and protrudes into the first slot 45a for electrical contact and electrical connection with the electrical terminals of the inserted first electrical device, and has at least one counterpart section which protrudes from the terminal 50A and protrudes into the second slot 45b for electrical contact and electrical connection with the electrical terminals of the inserted second electrical device. A detailed view of the electrical connector 60A is shown in Fig. 5. In this embodiment, the electrical connector 60A can be made of an electrically conductive material, e.g., metal, and can, without being limited to this, take the form of a single piece. The electrical connector 60A is essentially designed in the form of a plate-shaped element and can therefore be manufactured by stamping and any other method known in this field. After installation in the 50A connection receptacle of the base body 40 and insertion into the housing cavity 15, the electrical connection 60A extends within a plane of extension defined by the first direction L and the second direction T. The electrical connection 60A comprises a mounting section 65 for holding the electrical connection 60A in the terminal receptacle 50A, wherein the mounting section 65 comprises a first surface 61 configured to rest against or contact the bottom surface 55 (Fig. 6) of the terminal receptacle 50A when the electrical connection 60A is mounted in the corresponding terminal receptacle 50A, and a second surface 63 opposite the first surface 61 in the second direction T. The electrical connection 60A further comprises a first arm 62 and a second arm 64, which extend from the mounting section 65 (from opposite ends or sides in the first direction L) to the first side L1 and the second side L2, respectively. The first arm 62 and the second arm 64 each comprise counterpart sections 62a and 64a, respectively, which project in the second direction T away from the first surface 61 of the mounting section 65 (and thus away from the base surface 55 of the terminal receptacle 50A) in order to protrude from the terminal receptacle 50A into the corresponding slot after the electrical connection 60A has been installed in the terminal receptacle 50A. The first arm 62 and the second arm 64 are designed such that, after the electrical connection 60A is mounted in the corresponding terminal receptacle 50A and before connection to an external electrical means, an initial clearance exists between the first arm 62 and the second arm 64 on the one hand and the base surface 55 of the terminal receptacle 50A on the other. This initial clearance allows the first arm 62 and the second arm 64 to be deflected towards the base surface 55 of the terminal receptacle 50A under an external force and to return to their original positions when the external force is removed. The deflection is, for example, a rotation about the roots 62c and 64c (Fig. 5) of the respective arms connected to the mounting section 65.For example, the external force is caused by the fact that the electrical terminals of the first and second electrical means, during the insertion of the plug-in parts of the first and second electrical means into the first slot 45a and the second slot 45b, electrically contact and press against the opposing sections 62a and 64a of the first arm 62 and the second arm 64 of the electrical connection 60A. The provision of the initial clearance can be achieved in various ways. In the illustrated embodiment, the first arm 62 and the second arm 64 each project from the first surface 61 of the mounting section 65 and extend away from the mounting section 65 in the first direction L, while in the second direction T they tilt away from the base surface 55 of the terminal receptacle 50A or towards the second surface 63 of the mounting section 65, whereby the resulting initial clearance can increase with increasing distance from the mounting section 65. Optionally, in some embodiments, the first arm 62 and the second arm 64 can project from the mounting section 65 at a position offset from the first surface 61, whereby the first arm 62 and the second arm 64 do not necessarily have to be inclined. The mating sections 62a of the first arms 62 of all electrical terminals 60A of the terminal arrangement 20 project (in an initial state without external force) in the second direction T from the terminal receptacle 50A and into the first slot 45a. The mating sections 62a of the first arms 62 of all electrical terminals 60A project substantially the same distance from the terminal receptacle 50A, or project substantially the same distance from the first base body surface 42 (the first surface portion 42b) of the base body 40, or have contact sections 62d that are aligned in a plane perpendicular to the second direction T to ensure that all electrical terminals 60A are properly electrically connected to the electrical terminals of the first electrical means inserted into the first slot 45a. The "contact section" of each arm can have any shape, for example, a convex curved surface, as shown.All other constructive details of the contact section (e.g. shape, cross-section, inclination direction, curvature, etc.) that contribute to improving the reliability and stability of the electrical connection are within the scope of this application. Similarly, the opposing sections 64a of the second arms 64 of all electrical connections 60A of the connection arrangement 20 project substantially the same distance from the connection receptacle 50A, or project substantially the same distance from the first base body surface 42 (the second surface part 42c) of the base body 40, or have contact sections 64d that are aligned in a plane perpendicular to the second direction T to ensure that all electrical connections 60A are well electrically connected to the electrical connections of the second electrical means inserted in the second slot 45b. For the first arm 62 and the second arm 64, the respective mating sections 62a and 64a further comprise a first inclined surface 62f and 64f, which extends obliquely from the respective contact section 62d and 64d to a free end 62e and 64e of the corresponding arm in the first direction. The first inclined surfaces 62f and 64f are each configured to guide or facilitate the insertion of the plug-in parts of the first electrical means and second electrical means into the first slot 45a and the second slot 45b. As shown, the electrical connection 60A further comprises a third arm 66, which extends from the mounting section 65 in the first direction L in the same direction as the first arm 62 (towards the first side L1), and a fourth arm 68, which extends from the mounting section 65 in the first direction L in the same direction as the second arm 64 (towards the second side L2).Similar to the first arm 62 and the second arm 64, the third arm 66 and the fourth arm 68 are each provided with counter sections 66a and 68a, which extend (in the second direction T) away from the first arm 62 and the second arm 64 and thus from the bottom surface 55 of the terminal receptacle 50A and into the first slot 45a and the second slot 45b, and the respective counter sections have contact sections 66d and 68d which are closest to the first inner surface 11 of the connector housing 10 in order to directly electrically contact the electrical terminals of the first electrical means and the second electrical means. The third arm 66 is spaced from the first arm 62 in the second direction T and is offset from the first arm 62 away from the base surface 55 of the terminal 50A in order to form a gap 67a between the third arm 66 and the first arm 62. This gap allows the third arm 66 to be deflected into this gap towards the first arm 62 (and thus towards the base surface 55 of the terminal 50A). In the second direction T, the first arm 62 is closer to the base surface 55 of the terminal 50A than the third arm 66. The gap 67a allows each of the third arm 66 and the first arm 62 to deflect freely relative to the other.For example, when the plug-in part of the external device is inserted into the corresponding slot, the electrical connection of the external device first contacts and presses against the contact section 62d of the first arm 62, and the first arm 62 initially deflects relative to the third arm 66 towards the base surface 55 of the terminal receptacle 50A before the electrical connection of the external device contacts the contact section 66d of the third arm 66. As the external device is further inserted, when the electrical connection of the external device contacts the contact section 66d of the third arm 66, the third arm 66 begins to deflect relative to the first arm 62 towards it. On the other hand, the first arm 62 and the third arm 66 both extend from the mounting section 65 in the same direction in the first direction L, with the first arm 62 extending beyond the third arm 66, so that the counter section 62a of the first arm 62 (or its contact section 62d) is spaced apart from and aligned with the counter section 66a of the third arm 66 (or its contact section 66d) in the first direction L (arranged in a straight line), with the counter section 62a (or its contact section 62d) being positioned further away from the mounting section 65 than the counter section 66a (or its contact section 66d).Preferably, the contact section 62d of the counterpart section 62a of the first arm 62 and the contact section 66d of the counterpart section 66a of the third arm 66, which project into the first slot 45a, can project the same distance from the terminal receptacle 50A (or project from the first base body surface 42 of the base body 40), or can have the same distance to the opposite first inner surface 11 of the connector housing 10 (or its first surface section 11b) in order to simultaneously electrically contact the electrical connection of the first electrical connection arrangement of the inserted first electrical means. Similarly, the fourth arm 68 is spaced from the second arm 64 in the second direction T and is offset from the second arm 64 away from the base surface 55 of the terminal 50A in order to form a gap 67b between the fourth arm 68 and the second arm 64. This gap allows the fourth arm 68 to be deflected into this gap towards the second arm 64 and thus towards the base surface 55 of the terminal 50A. In the second direction T, the second arm 64 is closer to the base surface 55 of the terminal 50A than the fourth arm 68. The gap 67b allows each of the fourth arm 68 and the second arm 64 to deflect freely relative to the other. The second arm 64 and the fourth arm 68 both extend from the mounting section 65 in the same direction in the first direction L, and the second arm 64 extends beyond the fourth arm 68, such that the counterpart section 64a of the second arm 64 (or its contact section 64d) is spaced apart from and aligned with the counterpart section 68a of the fourth arm 68 (or its contact section 68d) in the first direction L (arranged in a straight line), the counterpart section 64a (or its contact section 64d) being further away from the mounting section 65 than the counterpart section 68a of the fourth arm 68 (or its contact section 68d).Preferably, the contact section 64d of the counterpart section 64a of the first arm 64 and the contact section 68d of the counterpart section 68a of the third arm 68, which project into the first slot 45a, can project from the terminal receptacle 50A by the same distance (or project from the first base body surface 42 of the base body 40), or can have the same distance to the opposite first inner surface 11 of the connector housing 10 (or its first surface section 11c) in order to simultaneously electrically contact the electrical connection of the first electrical connection arrangement of the inserted first electrical means. With the aforementioned functions implemented, the gap 67a and the gap 67b can have any suitable dimension. For example, as shown in Fig. 5, the surfaces 62b and 64b of the opposing sections 62a and 64a of the first arm 62 and the second arm 64 are each offset from the base surface 55 of the connection receptacle by arm surfaces 62g and 64g, respectively. In the preferred embodiment of Fig. 5, the first arm 62 and the third arm 66 extend substantially parallel to each other, with both being inclined towards the outside of the terminal receptacle 50A (or towards its first slot 45a) as they extend away from the mounting section 65, so that the dimension of the gap 67a can remain unchanged as the respective arms extend away from the mounting section 65. However, this is not strictly necessary. As already mentioned, both the first arm 62 and the third arm 66 can extend substantially in the first direction L without being inclined in the second direction T. The same function can be achieved as long as the respective opposing sections 62a and 66a project a suitable distance in the second direction T.As a further example, in some embodiments the first arm 62 and the third arm 66 are slightly inclined towards or away from each other as they extend away from the assembly section 65, so that the dimension of the gap 67a gradually increases. Still in the preferred embodiment of Fig. 5, the first arm 62 and the third arm 66 each have roots 62c and 66c connected to the mounting section 65, the gap 67a extending towards the mounting section 65 between the roots 62c and 66c and further into the mounting section 65, and then inclined towards the second surface 63 of the mounting section 65, so that a position within the mounting section 65 is reached which, in the first direction L, is substantially aligned with the root 62c or even closer to the second surface 63. The gap 67a extends into the mounting section 65, which gives the third arm 66 and the first arm 62 increased elasticity. Similarly, for the gap 67b between the second arm 64 and the fourth arm 68, the second arm 64 and the fourth arm 68 can be substantially parallel to each other or inclined away from each other as they extend away from the mounting section 65 in order to obtain a suitable dimension for the gap 67b. The gap 67b can extend towards the mounting section 65 between the roots 64c and 68c of the second arm 64 and the fourth arm 68 connected to the mounting section 65, and further into the mounting section 65, and then be inclined towards the second surface 63 of the mounting section 65 until it extends to a position within the mounting section 65 that is substantially aligned in the first direction L with the root 68c of the fourth arm 68 and even closer to the second surface 63. Thus, the electrical connection 60A comprises two arms extending in the same direction from the mounting section 65 to the first side L1 and provides two mating sections (62a and 66a) and two contact sections (62d and 66d) that extend into the first slot 45a, are aligned in the first direction L, and are spaced apart, so that when the first electrical means is connected to the first mating connection 16 of the electrical connector 100, the electrical connections of the first electrical means successively make electrical contact and connect the two mating sections (62a and 66a) or the two contact sections (62d and 66d) of each electrical connection 60A. The same applies to the second side L2.The electrical connection 60A provides two mating sections (64a and 68a) and two contact sections (64d and 68d) which extend into the second slot 45b, are aligned in the first direction L and are spaced apart, so that when the second electrical means is connected to the second mating connection 18 of the electrical connector 100, the electrical connections of the second electrical means gradually make electrical contact and connect the two mating sections (64a and 68a) or the two contact sections (64d and 68d) of each electrical connection 60A. On both sides in the first direction L, where the electrical connection 60A is electrically connected to the first electrical means and the second electrical means, the electrical connection 60A is designed to include two arms (62 and 66, 64 and 68) and two opposite sections (62a and 66a, 64a and 68a), which meets the power supply requirements at high current and the requirements regarding multi-pins (PIN). It should be clear to those skilled in the art that while the electrical connector 100 of the present application is designed to comprise two arms (or two elastic arms) and two mating sections (or two contact sections) on both sides, it is not limited to this. Three or more arms and consequently three or more mating sections are also conceivable. The aspects of the 60A electrical connection related to its electrical connection function have been described above. Further aspects of the 60A electrical connection are described below with reference to Figures 2, 5, and 6. When the electrical connector 60A is mounted in the terminal receptacle 50A, its mounting section 65 sits in a receiving section of the terminal receptacle 50A, which corresponds to the first projection 42a. At the same time, it is readily apparent with reference to Figs. 5 and 6 that the extent or dimension of the mounting section 65 of the electrical connector 60A in the first direction L is essentially equal to or slightly smaller than that of the first projection 42a of the base body 40 (or of the receiving section of the terminal receptacle 50A located within the first projection 42a) in the first direction L. Preferably, the second surface 63 of the mounting section 65 of the electrical connector 60A is provided with rounded corners 49 on two edges in the first direction L.In this way, the mounting section 65 of the electrical connection 60A (or its second surface 63) does not project beyond the receiving section of the connection receptacle 50A located within the first projection 42a in the first direction L. In this way, an edge 41 (Fig. 4) of the first projection 42a of the base body 40 engages with the flange 17 on the first inner surface 11 of the connector housing 10 when the electrical connector 100 is inserted into the housing cavity 15 in the first direction L from the second mating terminal 18 and reaches its expected position. The first projection 42a of the base body 40, and not a part of the electrical connector 60A itself, acts as the stop feature engaging with the flange 17. This contributes to the protection of the electrical connector 60A and ensures the electrical connection properties of the electrical connector 60A. In the second direction T, the extent or dimension of the mounting section 65 of the electrical terminal 60A (e.g., determined by the first surface 61 and the second surface 63) is slightly smaller than that of the receiving section of the terminal receptacle 50A lying within the first projection 42a in the second direction T, i.e., the depth of this receiving section, such that the second surface 63 of the mounting section 65 of the electrical terminal 60A does not protrude from the terminal receptacle 50A. With reference to Fig. 5, the first surface 61 of the mounting section 65 of the electrical connector 60A, which is the surface that comes into contact with the base surface 55 of the connector 50A when the electrical connector 60A is inserted into the connector receptacle 50A, comprises a first projection 72 that extends outwards in the second direction T. Accordingly, the base surface 55 of the connector 50A is provided with a groove 52 (Fig. 6) for receiving the first projection 72.During the assembly of the electrical connector 60A, the engagement of the first projection 72 of the electrical connector 60A with the groove 52 of the connector receptacle 50A indicates to the operator that the electrical connector 60A is in a precise relative position with respect to the connector receptacle 50A in the first direction L. Furthermore, during the subsequent insertion of the electrical connector 60A, this projection can act as a guide and prevent displacement of the electrical connector 60A within the connector receptacle 50A in the first direction L. For this purpose, a first projection 72 and a corresponding groove 52 can be provided. In the illustrated embodiment, two first projections 72 are provided, but more projections 72 can also be provided.This can not only provide good guidance but also improve the stability of the 60A electrical connection within the 50A terminal block, thereby increasing the durability of the electrical connector. Furthermore, compared to a single initial protrusion 72, this helps to prevent any possible rotation or wobbling of the 60A electrical connection (especially in a plane of extension of the 50A terminal block or the 60A electrical connection itself) during its insertion into the 50A terminal block. The first surface 61 of the mounting section 65 of the electrical connector 60A is provided with a recess 71 (Fig. 5) extending from the first surface 61 into the mounting section 65. Two first projections 72 (or another number of first projections 72) protrude from the recess 71 and extend beyond the first surface 61 to engage in corresponding grooves 52. This increases the effective engagement length of the first projections 72 in the grooves 52 without altering the other dimensions of the electrical connector 60A and the base body 40, thereby improving the stabilization and guidance functions. A portion may be present in the extension direction of the first projection 72 whose cross-section changes perpendicular to its extension length, such as the portion 57 with a convex-concave structure in Fig. 5. In the case where the above function can be provided, the extension of the first projection 72 in the second direction T (originating from the first surface 61 when it projects from the first surface 61, and originating from the inner surface of the recess 71 when it projects from the recess 71) is not limited. Preferably, however, the extension of the first projection 72 is equal to, or preferably slightly less than, the depth of the corresponding groove 52 to ensure that the first projection 72 extends completely into the groove 52, so that its entire extension is used as the effective engagement length. Returning to the second surface 63 of the mounting section 65 of the electrical connector 60A, the electrical connector 60A comprises at least two second projections 74 extending from the second surface 63 in the second direction T, the second projections 74 protruding from the connector receptacle 50A when the electrical connector 60A is mounted in the connector receptacle 50A. As described above, the second surface 63 of the electrical connector 60A is recessed in the connector receptacle 50A, and the at least two second projections 74 protrude from the connector receptacle 50A or extend beyond a surface of the first projection 42a of the base body 40. Simultaneously, the first projection 42a of the base body 40 comprises several ribs 76 (Fig. 4), each rib 76 being arranged in the third direction A between two adjacent connector receptacles 50A and elongated in the first direction L. The second projection 74 of the mounting section 65 of the electrical connector 60A and the rib 76 of the base body 40 project in the second direction T from the first projection 42a of the base body 40 towards the first inner surface 11 of the connector housing 10 and are arranged alternately in the third direction A. The second projection 74 of the electrical connector 60A and the rib 76 of the base body 40 can project from the first projection 42a by essentially the same distance, for example, reaching to the first inner surface 11 or forming a small gap with the first inner surface 11. Such a configuration can reliably and stably hold the connector assembly 20 in the housing cavity 15 and prevent displacement or wobbling. The number of second protrusions 74 can be at least two to prevent the electrical connection 60A from wobbling in the terminal receptacle 50A. At least two second protrusions 74 on the second surface 63, in combination with two or more first protrusions 72 on the first surface 61, provide a better effect in preventing the electrical connection 60A from wobbling in the terminal receptacle 50A. Of course, the number of second protrusions 74 on the second surface 63 is not limited to two. The second surface 63 can further comprise an additional protrusion 73 between two second protrusions 74, wherein the distance by which the additional protrusion 73 projects from the second surface 63 is equal to or preferably less than the projecting distance of the two second protrusions 74, to ensure that two second protrusions 74 outermost in the first direction L function better.It is also conceivable that the electrical connection 60A cannot include a second elevation 74. As described above, several electrical terminals 60A are mounted in several terminal receptacles 50A formed on the first base body surface 42 of the base body 40. When the terminal assembly 20 (from the second mating terminal 18) is inserted or installed into the housing cavity 15 of the connector housing 10, the several electrical terminals 60A provide the following: at least one (in the illustrated example, two) mating sections on the first side (mating sections 62a and 66a of the first arm 62 and the third arm 66) and at least one (in the illustrated example, two) mating sections on the second side (mating sections 64a and 68a of the second arm 64 and the fourth arm 68), each projecting into the first slot 45a and the second slot 45b, respectively.so that the electrical connection (arrangement) of the first electrical means (inserted in the first slot 45a) connected to the first counterpart 16 of the electrical connector 100 is electrically connectable to the electrical connection (arrangement) of the second electrical means (inserted in the second slot 45b) connected to the second counterpart 18 of the electrical connector 100. The electrical connector 100 of the present application is particularly suitable for cases where the first electrical means and the second electrical means each comprise two electrical connection arrangements. The electrical connector 100 further provides a third slot 45c and a fourth slot 45d, which are arranged symmetrically to the first slot 45a and the second slot 45b in the second direction T with respect to the base body 40. In the first direction L, the third slot 45c and the fourth slot 45d are spaced apart from each other by the second projection 44a on the second base body surface 44 of the base body 40. The second projection 44a on the second base body surface 44 and the first projection 42a on the first base body surface 42 are arranged symmetrically to the base body 40 in the second direction T. If the aforementioned multiple electrical connections 60A are designated as a first plurality of electrical connections and the corresponding multiple connection receptacles 50A provided on the first base surface 42 of the base body 40 are designated as a first plurality of connection receptacles, the electrical connector 100 of the present application further comprises a second plurality of electrical connections 60B, and the base body 40 accordingly comprises a second plurality of connection receptacles (not marked) formed on the second base surface 44. The electrical connections of the second plurality of electrical connections 60B and the electrical connections of the first plurality of electrical connections 60A are identically constructed, as shown in Fig. 5 and described in detail above.The second plurality of electrical connections 60B differs from the first plurality of electrical connections 60A only in that the first plurality of electrical connections 60A are mounted in the first plurality of connection receptacles 50A formed on the first base body surface 42 in such a manner or orientation that the opposing sections of the respective electrical connections project into the first and second slots 45a and 45b, respectively, while the second plurality of electrical connections 60B are mounted in the second plurality of connection receptacles 50A formed on the second base body surface 42 in such a manner or orientation that the opposing sections of the respective electrical connections project into the third and fourth slots 45c and 45d, respectively.In other words, the second plurality of electrical connections 60B and the first plurality of electrical connections 60A are completely oppositely oriented in the second direction T when mounted on the base body 40 and mounted in the connector housing 10. It is also evident from Fig. 3 and Fig. 6 that each of the second plurality of electrical terminals 60B is not correctly aligned with one of the first plurality of electrical terminals 60A corresponding to it in the second direction T, but is offset relative to each other in the third direction A. In other words, the cross-section shown in Fig. 6, perpendicular to the third direction A, shows only the first plurality of terminal receptacles 50A extending from the first base surface 42 and the electrical terminals located therein.In comparison to a structure in which each of the second plurality of electrical terminals 60B is precisely aligned with a corresponding one of the first plurality of electrical terminals 60A in the second direction T, and thus two terminal receptacles are present in one cross-section, the dimension or thickness of the base body 40 of the present electrical connector 100 in the second direction T can be minimized, and the dimension of the entire electrical connector 100 in the second direction T can be minimized, while the strength of the base body 40 is still ensured and the individual properties of the electrical connector 100 are guaranteed. However, without taking the above factors into account, each of the first plurality of electrical terminals 60A (and the corresponding terminal receptacle) can be aligned with each of the second plurality of electrical terminals 60B (and the corresponding terminal receptacle) in the second direction T. Fig. 6 shows a connector arrangement comprising the present electrical connector 100. In addition to the electrical connector 100, the connector arrangement further comprises a first electrical means 200 connected to the first mating terminal 16 of the electrical connector 100 and a second electrical means 300 connected to the second mating terminal 18 of the electrical connector 100. The first electrical device 200 can comprise a first central housing 210 and two electrical connection assemblies 220 and 230 supported by the first central housing 210. In this embodiment, the electrical connection assemblies 220 and 230 of the first electrical device 200 are socket connection assemblies, more precisely, cable connection assemblies with cables attached thereto. The electrical connections of the electrical connection assemblies 220 and 230 are cable connections, which can be crimp connections. The first electrical means 200 is connected to the first mating terminal 16 of the electrical connector 100 such that a portion of the first center housing 210 and a portion of the two electrical connection assemblies 220 and 230 it carries are each inserted into the first and third slots 45a and 45c, respectively. This electrically connects the two electrical connection assemblies 220 and 230 of the first electrical means 200 to the mating sections of the first and third arms of each of the first plurality of electrical connections 60A and to the mating sections of the first and third arms of each of the second plurality of electrical connections 60B of the electrical connector 100. This establishes a mechanical and an electrical connection between the first electrical means 200 and the electrical connector 100. The third electrical means 300 can comprise a second central housing 310 and two electrical connection arrangements 320 and 330 supported by the second central housing 310. The electrical connection arrangements 320 and 330 of the third electrical means 300 are shown as flat conductor connection arrangements, and the electrical connection arrangements 320 and 330 consist of several flat conductor connections. It is shown that the second electrical means 300 is connected to the second mating terminal 18 of the electrical connector 100 such that a portion of the second center housing 310 and a portion of the corresponding electrical connection assemblies 320 and 330 carried by it are each inserted into the second slot 45b and the fourth slot 45d, thereby electrically connecting the two electrical connection assemblies 320 and 330 of the third electrical means 300 to the mating sections of the second and fourth arms of each of the first plurality of electrical connections 60A and to the mating sections of the second and fourth arms of each of the second plurality of electrical connections 60B of the electrical connector 100. Thus, an electrical connection is established between the second electrical means 300 and the electrical connector 100. In the sectional view of Fig. 6, it can be seen that step surfaces 11d and 13d are formed on the first inner surface 11 and the second inner surface 13 of the electrical connector 100, and that the step surfaces 42d and 44d engage with the second central housing 310 when the second electrical means 300 is inserted into the second slot 45b and the fourth slot 45d of the housing cavity 15, in order to indicate that the second electrical means 300 is correctly inserted, and to prevent over-insertion of the second electrical means 300 in the first direction L or in any insertion direction. As also shown in Fig. 6, the connector housing 10 includes a fixing device that is either detachably attached to it or formed integrally with it. In one embodiment, the fixing device is a snap-fit ​​element 80. The snap-fit ​​element 80 is detachably connected to any outer surface of the connector housing 10, for example, for ease of use, it is located on a surface of the connector housing 10 that is normally at the bottom. The snap-fit ​​element 80 can include a claw 84 provided with a snap-fit ​​slot 82. The snap-fit ​​slot 82 can be configured to engage a plate-shaped element such as a conductor carrier (e.g., a printed circuit board) 85. The provision of a fixing device enables the electrical connector 100 to meet the usage requirements of users in different environments and improves usability and flexibility. Thus, the present electrical connector 10 realizes the electrical connection between the first electrical means 200 (an electrical means comprising a cable connection / cable connections, e.g. a cable connector) and the second electrical means 300 (an electrical means comprising a flat conductor connection / flat conductor connections, e.g. a flat conductor connector). Fig. 7 shows an electrical connector 100 according to a further embodiment of the present application. It differs from the first embodiment in Figs. 1-6 only slightly by the connector housing 10 of the electrical connector 100. Fig. 8 shows a side view of the electrical connector 100 of Fig. 7. In addition to the details described above with regard to the connector housing 10, the present connector housing 10 comprises a support section 90 for supporting an electrical connection arrangement to be inserted into the first slot 45a and the third slot 45c.The support section 90 comprises a first slot opening 92 and a second slot opening 94, which are aligned in the first direction L with the first slot 45a and the third slot 45c respectively, and the two are spaced apart from each other in the second direction T by such a distance and are positioned in the second direction T such that a first electrical connection arrangement inserted through the first slot opening 92 can be electrically connected to the opposite sections of the arms (62 and 66) of each of the first plurality of electrical connections 60A of the electrical connector 100, and a second electrical connection arrangement inserted through the second slot opening 94 can be electrically connected to the opposite sections of the arms (64 and 68) of each of the second plurality of electrical connections 60B of the electrical connector 100.In particular, the present embodiment applies to the case where the electrical connection arrangement is a flat conductor connection arrangement consisting of flat conductor connections. Fig. 8 shows a side view of the electrical connector 100 from Fig. 7. The first slot opening 92 and the second slot opening 94 of the support section 90 of the connector housing 10 are clearly visible. With the present electrical connector, a first electrical device connected to the first mating terminal of the electrical connector 100 can directly insert its electrical connection arrangements into the first and third slots of the electrical connector 100 and electrically connect them to the electrical connection arrangements of a second electrical device inserted into the second and fourth slots. In one embodiment, the first electrical device 200 can be an electrical device comprising electrical connections in the form of flat conductor connections, e.g., a flat conductor connector. The second electrical device 300 is also an electrical device comprising electrical connections in the form of flat conductor connections, e.g., a flat conductor connector.For example, the first electrical device 200 can only insert its electrical connection assemblies into the first and third slots of the present electrical connector, and the second electrical device 300 can insert its electrical connection assemblies as well as part of the center housing into the second and fourth slots of the present electrical connector. Thus, the present electrical connector provides an electrical connection between two electrical flat conductor devices and can be used in a battery management system or in other areas of electronic device assembly. Fig. 9 shows another connector arrangement of the present application, comprising an electrical connector 100 and a first electrical means 200 and a second electrical means 300 connected thereto. Unlike the first electrical means 200 in Fig. 6, the electrical connection arrangements 220 and 230 of the first electrical means 200 in this embodiment are flat conductor connection arrangements. Specifically, the first electrical means 200 comprises a first electrical connection arrangement 220 inserted in the first slot 45a and a second electrical connection arrangement 230 inserted in the third slot 45c. Similar to Fig. 8, the first electrical means 200 only partially inserts its electrical connection arrangements 220 and 230 into the first slot 45a and the third slot 45c of the electrical connector 100. In this context, the first slot 45a and the third slot 45c of the electrical connector 100 are configured to directly receive an electrical connection arrangement (e.g., a flat conductor connection arrangement) with a smaller dimension in the second direction T, and the first slot 45a and the third slot 45c accordingly have smaller dimensions in the second direction T. Thus, a first cavity section of the housing cavity 15 of the connector housing 10 at the first slot 45a and the third slot 45c has a correspondingly smaller dimension in the second direction T, in particular smaller than that of a middle cavity section of the housing cavity 15, which corresponds to the first and second projections 42a and 44a of the base body 40 of the connection arrangement 20. Thus, the first inner surface 11 and the second inner surface 13, which delimit the housing cavity 15, each form a step surface 11e and 13e.These stepped surfaces 11e and 13e can replace the flange 17 on the connector housing 10 in the first embodiment shown in Fig. 1-6 and serve as a stop feature which, when the connection arrangement 20 is inserted from the second mating connection 18 into the housing cavity 15, engages with the projection 42a of the base body 40 of the connection arrangement 20 to prevent further insertion. The second electrical device 300 is similar to the second electrical device in Fig. 6 and comprises a second central housing 310 and a first electrical connection arrangement 320 and a second electrical connection arrangement 330, which are supported by the latter. A portion of the second central housing 310 and a respective portion of the first electrical connection arrangement 320 and the second electrical connection arrangement 330 are each inserted into the second slot 45b and the fourth slot 45d, respectively. With reference to Fig. 10, an electrical connector 400 for electrically connecting a first electrical means and a second electrical means is now described according to a further embodiment of the present application. The electrical connector 400 can comprise a connector housing 410 made of an insulating material and a terminal assembly 420 housed within the connector housing 410. The terminal assembly 420 can comprise a base body 440 and several electrical terminals supported by the base body 440. The base body 440 can also be made of an insulating material. In some embodiments, the connector housing 410 and the base body 440 of the terminal assembly 420 can be formed as a single piece. Examples of the insulating material of the present application include, but are not limited to, plastic, nylon, liquid crystal polymer (LCP), polyphenylene sulfide (PPS), high-temperature-resistant nylon or polyphenylene oxide (PPO), or polypropylene (PP). A housing cavity 415 extends through the connector housing 410 in a first direction L. The connection arrangement 420 can be inserted into or mounted in the housing cavity 415 of the connector housing 410 in the first direction L, thereby forming a first mating connection 416 (Fig. 10) and a second mating connection 418 (Fig. 11) on the two sides of the electrical connector 400 opposite each other in the first direction L. The first mating connection 416 and the second mating connection 418 are configured to receive a first electrical means and a second electrical means, respectively. The connector housing 410 can serve as a support frame for the connection arrangement 420. In a second direction T perpendicular to the first direction L, the housing cavity 415 is bounded by an upper surface 411 and a lower surface 413 of the connector housing 410, which are opposite each other.It should be noted that the directional terms "top" and "bottom" refer to two opposing orientations in the second direction T and are to be understood in relation to the mounting state of the components in the drawings. If the orientation of the components is changed in the drawings, the interpretation of the directional terms should be changed accordingly. Fig. 10 and Fig. 11 show assembly views of the electrical connector 400 from two different perspectives, and Fig. 12 shows that the connection arrangement 420 of the electrical connector 400 is removed from the housing cavity 415. The base body 440 of the connection arrangement 420 comprises a first part 442 extending in the second direction T, and a second part 444 projecting from the first part 442 in the first direction L. The first part 442 has a first upper surface 441 and a first lower surface (not marked) facing each other in the second direction T, and the second part 444 has a second upper surface 447 and a second lower surface (not marked) facing each other in the second direction T. The first upper surface 441 of the first part 442 and the second upper surface 447 of the second part 444 together form an upper base body surface (or a first base body surface) 402, and the first lower surface of the first part 442 and the second lower surface of the second part 444 together form a lower base body surface (or a second base body surface) (not marked).The basic body 440 comprises a first end face 401 (Fig. 12) and a second end face, which are opposite each other in the first direction L, and the first end face 401 and the second end face are each defined by the first part 442 and the second part 444. When the connection arrangement 420 is mounted in the housing cavity 415 of the connector housing 410, the first upper surface 441 and the first lower surface of the first part 442 of the base body each engage with the corresponding upper surface 411 and lower surface 413 of the connector housing 410, thereby spacing the first mating connection 416 and the second mating connection 418 apart from the interior of the connector housing 410. At the first mating connection 416, the second upper surface 447 and the second lower surface of the second part 444 of the base body 440, together with the upper surface 411 and lower surface 413 of the connector housing 410 opposite in the second direction T, define the first slot 425a and the second slot 425b (Fig. 10), and the first slot 425a and the second slot 425b are spaced apart from each other by the second part 444 of the base body 440.At the second mating connection 418, a common slot 435 (Fig. 11) is bounded by the upper surface 411 and the lower surface 413 of the connector housing 410. The base body 440 comprises a first plurality of terminal receptacles 450A extending from the upper base body surface 402 in the second direction T into the base body 440, wherein the first plurality of terminal receptacles 450A are spaced apart in a third direction A perpendicular to the first direction L and the second direction T and form a row. Accordingly, a plurality of electrical terminals 460 comprises a first plurality of electrical terminals 460A corresponding to the first plurality of terminal receptacles 450A. Each of the first plurality of electrical terminals 460A is partially received in one of the first plurality of terminal receptacles 450A and comprises an arm contact section extending into the first slot 425a at the first mating terminal 416 and a pin contact section extending into the common slot 435 at the second mating terminal 418.The arm contact section is configured for electrical connection with an electrical terminal of an electrical connection arrangement of a first electrical means inserted in the first slot 425a, and the pin contact section is configured for electrical connection with an electrical terminal of an electrical connection arrangement of a second electrical means inserted in the common slot 435. The base body 440 further comprises a second plurality of terminal receptacles (not marked) extending from the lower surface of the base body in the second direction T into the base body 440, the second plurality of terminal receptacles being spaced apart in the third direction A and forming a row. Accordingly, a plurality of electrical terminals 460 comprises a second plurality of electrical terminals 460B corresponding to the second plurality of terminal receptacles. Each of the second plurality of electrical terminals 460B is partially received in one of the second plurality of terminal receptacles and comprises an arm contact section extending into the second slot 425b at the first mating terminal 416 and a pin contact section extending into the common slot 435 at the second mating terminal 418.The arm contact section is configured for electrical connection with a corresponding electrical connection of an electrical connection arrangement of a first electrical means inserted in the second slot 425b, and the pin contact section is configured for electrical connection with a corresponding electrical connection of an electrical connection arrangement of a second electrical means inserted in the common slot 435. The electrical connections of the second plural of electrical connections 460B and the electrical connections of the first plural of electrical connections 460A are identical in design. Since the orientations of the second plural of connection receptacles and the first plural of connection receptacles 450A are exactly opposite in the second direction T, the mounting orientations of the second plural of electrical connections 460B and the first plural of electrical connections 460A are exactly opposite in the second direction T. In the following, only one connection point of the first plurality of connection points 450A and a corresponding electrical connection of the first plurality of electrical connections 460A are described, and for the sake of simplicity, the connection point and the electrical connection are referred to below as 450 and 460. As described above, the terminal receptacle 450 extends from the upper surface of the base body 402 in the second direction T into the base body 440. The terminal receptacle 450 extends from the first end face 401 of the first part 442 in the first direction L into the base body 440 and terminates within the second part 444 without penetrating the base body 440. The terminal receptacles 450 of the present electrical connector 400 are each configured to receive part, but not all, of the corresponding electrical connections. Part of the electrical connection 460 is accommodated in the corresponding terminal receptacle 450, and part extends from the terminal receptacle 450 into the common slot 435 within the second mating connection 418. The electrical connection 460 of the present application is described below with reference to Fig. 13, Fig. 14 to Fig. 15. The electrical connection 460 comprises a first connection element 470 and a second connection element 490, which are connected to each other. In the first direction L, the electrical connection 460 comprises the following: an arm section provided by the first connection element 470 and extending in the first direction L, a pin section (or stud section) provided by the second connection element 490 and extending in the first direction L, and a retaining section formed by connecting the first connection element 470 and the second connection element 490. The retaining section of each electrical connector 460 is suitable for being received in a receiving section of the connector receptacle 450 located in the first part 442 of the base body 440, and the arm section of each electrical connector is suitable for being received in a receiving section of the connector receptacle 450 located in the second part 444 of the base body 440, and the pin section of each electrical connector 460 is suitable for projecting from the connector receptacle 450 and being cantilevered in the common slot 435 of the second mating connector 418. The arm section of each electrical connector 460 (more precisely, of the first connector element 470) comprises an (arm) contact section that projects in the second direction T from the connector receptacle 450 and into the first slot 425a for electrical connection with an electrical terminal of an inserted external electrical device.The pin section of each electrical connection 460 (more precisely, of the second connection element 490) comprises a (pin) contact section that projects into the common slot 435 and is elongated in the first direction L for electrical connection with an electrical terminal of an inserted external electrical device. With reference to Fig. 14, the arm section provided by the first terminal element 470 comprises a first arm 472 and a second arm 474, which are spaced apart from each other in the second direction T. The first arm 472 is configured such that, when the electrical terminal 460 is mounted in the corresponding terminal receptacle 450, it lies near the base of the terminal receptacle 450 and has an initial clearance to the base of the terminal receptacle 450, which allows the first arm 472 to be deflected into this initial clearance. A gap 469 exists between the second arm 474 and the first arm 472, which allows the second arm 474 to be deflected relative to the first arm 472, or vice versa. The first and second arms 472 and 474 each comprise a first and a second contact section 472a and 474a, respectively, projecting at or near their free ends. In the first direction L, the first arm 472 extends further than the second arm 474, so that the contact sections 472a and 474a of the first arm 472 and the second arm 474 may be offset in the first direction L and project in the same manner, extending substantially the same distance from the base body 440. Thus, in the second direction T, the contact sections 472a and 474a of the two arms may be substantially at the same level. The contact sections 472a and 474a of the first arm 472 and the second arm 474 may include inclined surfaces 472b and 474b for guidance purposes to facilitate the insertion of the electrical terminals of an external connector. Regarding various details of the first arm 472 and the second arm 474, reference can be made to the various details described above in connection with the electrical connector 100. The same content is not repeated here. In the illustrated embodiment, the entire first connecting element 470 is provided as, but not limited to, a plate-shaped component, which can be a one-piece stamped part, but is not limited to being so. The first end element 470 further comprises a base section 476 and a connecting feature projecting from the base section 476, the connecting feature extending in the first direction L in the opposite direction to the arm section. In one embodiment, the base section 476 has a substantially rectangular shape. The connecting feature comprises two legs 482 and 484 projecting from the base section 476. The two legs 482 and 484 are substantially parallel to each other and are separated by a gap 485. The two legs 482 and 484 have facing inner surfaces 481 and 483, as well as projections 487 and 489 that extend from the inner surfaces 481 and 483 into the gap 485. The projections 487 and 489 can be located near the ends of the two legs 482 and 484 and can be connected on both sides to the corresponding inner surfaces by inclined surfaces. The two projections 487 and 489 comprise arm contact sections 487a and 489a (or arm contact vertices) that define a minimum first distance. In Fig. 15, the second connecting element 490 is also shown in its entirety as a plate-shaped component, although this is not the only possible form. The second connecting element 490 can also be a one-piece stamped part, although this is not the only possible form. The second connection element 490 comprises a base section 492 and a pin section 494 extending in the first direction from the base section 492. The entire pin section 494 serves as an electrically conductive contact section of the electrical terminal 460 of the electrical connector 400 for electrical connection with an electrical terminal of a second electrical device mounted on the second mating terminal 418 of the electrical connector 400. The pin section 494 can have a first surface 494a and a second surface (not shown) opposite each other, defining a thickness in the second direction T, as well as a first side surface 494c and a second side surface 494d, defining a width in the third direction A. The first surface 494a and the second surface serve as electrically conductive contact surfaces for electrical connection to the electrical terminal of an external electrical means. The contact surface is shown flat in the drawings, but the present application is not limited to a flat contact surface.The pin section 494 has a tip 495 with gradually decreasing thickness and gradually decreasing width, the gradually decreasing thickness of the tip 495 being determined by end sections of the first surface 494a and the second surface extending obliquely towards each other, and the gradually decreasing width of the tip 495 being determined by end sections of the first side surface 494c and the second side surface 494d extending obliquely towards each other. The oblique orientation of the first and second side surfaces 494c, 494d and the first and second surfaces 494a, 494b to define the tip 495 serves to guide and facilitate engagement with an electrical mating terminal. The base section 492 has a width greater than that of the pin section 494. Third and fourth legs 432 and 434 extend from the base section 492 in the opposite direction to the pin section 494 and are separated from each other by a narrow gap 498, forming extensions. The third and fourth legs 432 and 434 have mutually facing inner surfaces 431 and 433, as well as projections 437 and 439 that extend from the inner surfaces 431 and 433 in opposite directions into the narrow gap 498. The projections 437 and 439 have pin contact sections 437a and 439a (pin contact vertices) that define a minimum second distance. In the illustrated embodiment, the narrow gap 498 can have a gap width that varies in the first direction L. The electrical connection 460 is formed by connecting the second connection element 490 and the first connection element 470. Referring to Fig. 13, the projections 487 and 489 of the two legs 482 and 484 of the first connection element 470 are engaged on the base section 492 of the second connection element 490, and the projections 437 and 439 of the two legs 432 and 434 of the second connection element 490 are engaged on the base section 476 of the first connection element 470. This connection is established by inserting the base section 476 of the first connecting element 470 between the two legs 432 and 434 of the second connecting element 490, and by inserting the base section 492 of the second connecting element 490 between the two legs of the first connecting element 470, and then moving the two connecting elements towards each other. The first connecting element 470 and the second connecting element 490 are correctly connected when their base sections or other parts thereof are in contact with each other. For example, a surface 471 (Fig. 14) of the base section 476 of the first connecting element 470 can abut a projection (e.g. 497 or 499 in Fig. 15) on one or both legs of the second connecting element 490 or on a narrowing of the narrow gap 498, or a surface or projection of the second connecting element 490 can abut a point of the first connecting element 470. In this way, one of the first connecting element 470 and the second connecting element 490 are inserted into the gap between two legs of the other, and both have two contact sections that snap into place on each other. This connection method is stable and reliable and contributes to the stability of the signal transmission. The first distance between arm contact sections 487a and 489a of the protrusions 487 and 489 of the first connecting element 470 is dimensioned such that it is smaller than the thickness of the base section 492 of the second connecting element 490, so that the arm contact sections 487a and 489a of the protrusions 487 and 489 of the first connecting element 470 snap or clamp onto the base section 492 of the second connecting element 490 by elastic force. The second distance between pin contact sections 437a and 439a of the protrusions 437 and 439 of the second terminal element 490 is less than the thickness of the base section 476 of the first terminal element 470, so that the pin contact sections 437a and 439a of the protrusions 437 and 439 of the second terminal element 490 snap or clamp onto the base section 476 of the first terminal element 470 by elastic force.A smaller contact surface results in a greater clamping force, and a reliable and stable electrical connection between the first terminal element 470 and the second terminal element 490 is achieved. By changing the relative position of the gap 485 between two legs 482 and 484 of the first terminal element 470 to the contact sections 472a and 472b of the arm sections in the second direction T, the relative position of the pin section (or its pin contact section) and the arm sections (or their arm contact sections) of the entire electrical terminal 460 in the second direction can be changed. As described above, the first terminal element 470 and the second terminal element 490 are rigidly connected to each other, forming an electrical connection 460, with each element providing two contact sections for electrical and mechanical connection to the other, thus ensuring the stability of the signal transmission. The specific dimensions of the arm contact section and the pin contact section can be suitably designed to provide an appropriate (e.g., smaller) contact surface area and a suitable (e.g., greater) contact pressure, thereby improving the contact stability and reliability between the two terminal elements. The electrical connector 460 comprises a first connector element 470, which includes the arm contact sections, and a second connector element 490, which includes the pin contact section. Thus, first connector elements 470 and second connector elements 490 can be provided with different specifications (shapes and / or dimensions), and the appropriate first connector element 470 and second connector element 490 can be selected for assembly into an electrical connector 460A that meets user requirements. In this way, the electrical connector of the present application can meet diverse application requirements and exhibits a high degree of universality. The arm contact sections of the electrical connector 460 of the present application allow the mating connection to be made to an external electrical means comprising an electrical connection arrangement consisting of flat conductor terminals, and the pin contact section of the electrical connector 460 allows the mating connection to be made to an external electrical means comprising an electrical connection arrangement (a cable connection arrangement or a crimp connection arrangement) consisting of socket terminals. In this way, the present electrical connector enables the electrical connection of two different types of electrical means. The connection between the external electrical means and the electrical connector of the present application is detachable and offers a high degree of flexibility. In some embodiments, the thickness of the plate-shaped first connecting element 470 and the thickness of the plate-shaped second connecting element 490 can be different. Preferably, the first thickness is smaller than the second thickness. Since the arm contact sections of the electrical connection 460 (or of the first connection element 470) are electrically connected to the flat conductor connection of the electrical connection arrangement of the first electrical means, and the flat conductor connection is usually in the form of a contact strip, the thickness of the first connection element 470 is relatively small, which contributes to increasing the contact pressure and improving the reliability and stability of the contact. The pin contact section of the electrical connector 460 (or the second connector 490) is electrically connected to the socket-shaped electrical connection (such as the crimp terminal or the cable terminal) of the electrical connection arrangement of the second electrical element. Therefore, the thickness of the second connector 490 is relatively large, which increases the contact area and ensures transmission efficiency and connection stability. For example, the thickness of the first connector 470 is 0.2 mm, and the thickness of the second connector 490 is 0.4 to 0.5 mm. Furthermore, the base section 476 of the first connection element 470 includes an outwardly projecting limiting block 457, which is configured to engage with a corresponding feature on the base body 440 when the electrical connection 460 is inserted into the connection receptacle 450, in order to prevent over-insertion of the electrical connection. Specifically, the second part 444 of the base body 440 has a limiting groove 459 (Fig. 17). When the electrical connection 460, formed by connecting the first connection element 470 with the second connection element 490, is inserted into the connection receptacle 450, the engagement of the limiting block 457 in the limiting groove 459 prevents further movement or insertion of the electrical connection in the second direction T, thus achieving a positioning effect. This detail is shown in Fig. 16 and Fig. 17. The provision of limiting features can prevent the electrical connector 460 from being inserted excessively into the terminal receptacle 450, thereby avoiding adverse effects on the electrical connection between the arm contact sections of the electrical connector 460, more precisely the first terminal element 470, and the electrical connection of the first electrical means, which is in the form of the contact strip or the flat conductor, which may be caused by excessive insertion of the electrical connector 460, thereby overcoming the instability of the electrical connection that may be caused by this and ensuring the uniformity of the insertion depths of the individual electrical connectors, in particular the first terminal element, thus improving the product quality. In the example shown, the limiting block 457 is arranged on the base section 476 of the first connection element 470. The limiting block has a substantially triangular shape. However, those skilled in the art should understand that this is merely an example and is not intended to represent a limitation. The limiting block 457 can be arranged at any suitable position on the first connection element 470. Optionally, it is also possible for the limiting block 457 to be provided on the second connection element 490. The features for providing the limiting effect for inserting the electrical connector 460 do not necessarily have to be in the form of the limiting block and limiting groove as shown. Any engagement feature that achieves the same effect can be used. It is also understood that, although the electrical connection 460 in the illustrated embodiment comprises the first connection element 470 and the second connection element 490, which are provided separately, the present application is not limited thereto. The electrical connection 460 can be a single piece. The present application also includes certain improvements to the electrical connector. In some embodiments, as shown in Figs. 18 and 19, a protrusion 425 is provided on the base body 440 of the connection arrangement 420 of the electrical connector 400, for example on an end face 401 of the first part 442 thereof, between adjacent connection receptacles 450 and thus between the pin contact sections (or pin sections 494) of the electrical connector 400. This protrusion projects outwards (e.g., substantially in the first direction L). The protrusion 425 can have any desired shape, dimensions, and projecting length. Providing the protrusion 425 can increase the creepage distance between adjacent electrical connections and thereby improve the electrical properties of the connector. Several different electrical connectors, which may have several different connector housings, have been described above with reference to the drawings. It is conceivable that one or more types of fixing devices for fixing to an external or other component may be provided on the connector housing of the electrical connector. For example, the connector housing may provide a snap-in fixing device 406 (Fig. 20) with a locking slot or a screw-type fixing device 408 (Fig. 21) with a lug with a threaded bore or the like. If several types of fixing devices are provided, different types of locking devices are preferably arranged on different outer surfaces. Figures 22, 23, 24, 25 to 26 show a connector arrangement. The connector arrangement comprises the electrical connector 400 described with reference to Figure 10, as well as a first electrical means 500 and a second electrical means 600, each connected to the first mating terminal 416 and the second mating terminal 418 of the electrical connector 400. The first electrical means 500 comprises a first central housing 510 and first and second electrical connection assemblies 520, 530, which are supported by the first central housing 510. A gripper 540 is designed to fix the first and second electrical connection assemblies 520, 530 to the first central housing 510. In the illustrated example, the gripper 540 can be in the form of an FPA component that is snap-fitted to the first central housing 510 and rests against the connection assemblies to lock the connection assemblies to the first central housing 510.The gripper 540 improves the connection stability of the first electrical connection arrangement 520 and the second electrical connection arrangement 530 with the first central housing 510 and thereby in turn ensures the contact stability of the respective connection arrangements 520 and 530 of the first electrical means 500 with the electrical connections of the electrical connector 400 (or their arm contact sections). The first electrical device 500 is connected to the first mating terminal 416 of the electrical connector 400 by inserting its first terminal assembly 520 and its second electrical terminal assembly 530, respectively, into the first slot 425a and the second slot 425b of the electrical connector 400. The electrical terminals of the first electrical terminal assembly 520 and the second electrical terminal assembly 530, which are in the form of a contact strip or a flat conductor, are each electrically connected to the electrical contact sections of the first plurality of electrical terminals of the electrical connector 400 that project into the first slot 435a, and to the electrical contact sections of the second plurality of electrical terminals of the electrical connector 400 that project into the second slot 435b, thereby establishing the electrical connection of the first electrical device 500 to the electrical connector 400.The second electrical device 600 comprises a second central housing 610 and two electrical connection assemblies 615 supported by the second central housing 610. The electrical connection assemblies consist of socket-shaped terminals (e.g., crimp terminals electrically connected to cables). The electrical terminals in each of the electrical connection assemblies 615 are spaced apart in the same manner as the electrical terminals 460 of the electrical connector 400. A gripper 620 is designed to secure the respective electrical connection assemblies (or the respective electrical terminals) to the second central housing 610. The gripper 620 can be in the form of a TPA component that snaps into place on the second central housing 610 and rests against the respective electrical terminals.The gripper 620 in the form of the TPA component improves the connection stability between the respective electrical connections and the second central housing 610 and thereby the electrical contact properties between the second electrical means 600 and the electrical connector 400. When the second electrical means 600 is connected to the second counterpart 418 of the electrical connector 400, each socket-shaped electrical terminal of the second electrical means 600 receives the pin section 494 of a corresponding electrical terminal 460 of the electrical connector 400 and is electrically connected to it, thereby enabling an electrical connection of the second electrical means 600 (and a cable 617 electrically connected to its electrical terminal) with the electrical connector 400. With reference to Fig. 25 and Fig. 26, details of the first electrical means 500 are shown. The first center housing 510 of the first electrical means 500 comprises an elastic locking structure 550 (e.g., an elastic arm as shown), and the connector housing 410 of the electrical connector 400 is provided with a hook section 455 (Fig. 26) configured to engage with the elastic locking structure 550 of the first electrical means 500. When the first electrical device 500 is connected to the electrical connector 400, or when the first electrical device 500 is inserted into the first mating terminal 416 of the electrical connector 400, the hook section 455 of the connector housing 410 of the electrical connector 400 engages with the elastic locking structure 550 on the first center housing 510 of the first electrical device 500 and elastically deforms it, which allows the first center housing 510 of the first electrical device 500 to be inserted further into the housing cavity 415 of the electrical connector 400. After the elastic locking structure 550 has passed the hook section 455 of the connector housing 410, it returns to its original position under the influence of an elastic force, and the elastic locking structure 550 engages with the hook section 455 in a snap-fit ​​manner.The elastic locking structure 550 interacts with the hook section 455, thereby achieving an automatic locking between the electrical connector (or its connector housing 410) and the first electrical means 500 (or its first center housing 510), thus improving the convenience and reliability of the connection between the first electrical means 500 and the electrical connector 400. The first electrical means 500 can further comprise a locking device configured to lock the elastic detent structure 550 and the hook section 455 in an engaged state or engagement position. The locking device can be in the form of a CPA component 585. As shown in the sectional view of Fig.As shown in Figure 26, the CPA component 585 is connected to the first center housing 510 of the first electrical means 500 and rests against the elastic locking structure 550, which limits the movement of the elastic locking structure 550 in the form of an elastic arm, prevents unintentional disengagement of the elastic locking structure 550 with the hook section 455, which could lead to disengagement of the electrical connector 400 (or its connector housing 410) with the first electrical means 500 (or its first center housing 510), thereby further improving the connection stability between the electrical connector and the first electrical means 500. Several embodiments have been described with reference to the accompanying drawings. These embodiments are all examples and are not intended to limit the scope of protection of the present application in any way. These embodiments may be used independently of one another or combined appropriately to form new embodiments. Features or aspects described with respect to one embodiment may be combined appropriately with features or aspects described with respect to another embodiment or embodiments to generate a new embodiment. These new embodiments also fall within the scope of protection of the present application. The description of the embodiments of this application is given with reference to the drawings. The directional terms used in the description are to be understood in relation to the arrangement or orientation of the components in the corresponding drawings. If the arrangement or orientation of the components changes in the drawings, the directional terms are to be interpreted differently accordingly. It is understood that the terms “first”, “second”, “third”, etc., used herein are merely intended to distinguish one element, component or part from another element, component or part, and are not intended to impose any restriction as to order, importance or the like. It is understood that, unless expressly specified and defined otherwise, terms such as "assembly," "connecting," "connecting," and "fixing" between A and B are to be understood in a broad sense. For example, "connecting": unless expressly specified and limited otherwise, "connecting" can refer to a mechanical connection or an electrical connection; "connecting" can refer to a direct connection or an indirect connection using an intermediate element; "connecting" can refer to a detachable or non-detachable connection or a connection in one piece. The person skilled in the art can understand the meaning of the above terms in the present application in specific cases. Without departing from the core of the present application, the person skilled in the art, after reading the above description, may make various changes, modifications and improvements to various details shown in the drawings and described above, and these changes, modifications and improvements also fall within the scope of protection of the present application.

Claims

An electrical connector configured for electrically connecting a first electrical means and a second electrical means, comprising: a connector housing made of an insulating material and defining a housing cavity extending through the connector housing in a first direction; and a terminal arrangement arranged in the housing cavity, comprising a base body and multiple electrical terminals, the base body comprising a first base body surface and a second base body surface, which are opposite each other in a second direction perpendicular to the first direction, and multiple terminal receptacles extending from at least one of the base body surfaces in the second direction into the base body.wherein the multiple terminal receptacles are spaced apart in a third direction perpendicular to both the first and second directions and are each elongated in the first direction, wherein the at least one base body surface of an inner surface of the connector housing, which delimits the housing cavity, faces in the second direction to delimit between them a first slot and a second slot spaced apart in the first direction, and wherein the first slot and the second slot are each configured to receive a portion of the first electrical means and a portion of the second electrical means, respectively, wherein each of the multiple electrical connections is received in one of the multiple terminal receptacles and comprises: a mounting section configured to hold the electrical connection in a corresponding terminal receptacle; and a first arm and a second arm.extending in opposite directions from the mounting section, each of the first and second arms having: an initial clearance to a bottom surface of the corresponding connector receptacle, which allows the arm to be deflected towards the bottom surface of the corresponding connector receptacle; and comprising a counter section projecting out of the corresponding connector receptacle towards the inner surface, the counter section of the first arm projecting into the first slot and the counter section of the second arm projecting into the second slot. Electrical connector according to claim 1, wherein each of the multiple electrical connectors further comprises: a third arm extending from the mounting section parallel to the first arm and offset from the first arm in the second direction away from the bottom surface of the connector receptacle to allow the third arm to be deflected towards the first arm into a gap between the two; and a fourth arm extending from the mounting section parallel to the second arm and offset from the second arm in the second direction away from the bottom surface of the connector receptacle to allow the fourth arm to be deflected towards the second arm into a gap between the two; wherein the third arm and the fourth arm each comprise a counter-section extending into the first and fourth arms, respectively.second slot, wherein the opposite section of the third arm and the opposite section of the first arm each comprise a contact section that projects from the corresponding connection receptacle and projects in the second direction by an equal distance beyond the at least one base body surface, and wherein the opposite section of the fourth arm and the opposite section of the second arm each comprise a contact section that projects from the corresponding connection receptacle and projects in the second direction by an equal distance beyond the at least one base body surface. Electrical connector according to claim 2, wherein the first arm of each of the multiple electrical connections extends further in the second direction from the mounting section than the third arm, so that the contact sections of the opposite sections of the third arm and the first arm are aligned and spaced apart in the first direction, and the second arm of each of the multiple electrical connections extends further in the second direction from the mounting section than the fourth arm, so that the contact sections of the opposite sections of the fourth arm and the second arm are aligned and spaced apart in the first direction. Electrical connector according to claim 3, wherein the contact sections of the mating sections of the first, second, third and fourth arms of each of the multiple electrical connections are all aligned in a first direction. Electrical connector according to claim 4, wherein the mating sections of the first arm and the second arm of each of the multiple electrical connections each have a first inclined surface extending obliquely from the respective contact section in the second direction to a free end of the respective arm in the first direction; and / or the mating sections of the third arm and the fourth arm of each of the multiple electrical connections each have a second inclined surface extending obliquely from the respective contact section in the second direction to a free end of the respective arm in the first direction. Electrical connector according to any one of claims 2 to 5, wherein the gap between the third arm and the first arm of each of the multiple electrical connections extends to a location within the assembly section that is aligned with the third arm in the first direction; and / or the gap between the fourth arm and the second arm of each of the multiple electrical connections extends to a location within the assembly section that is aligned with the fourth arm in the first direction. Electrical connector according to any one of claims 2 to 6, wherein the mounting section of each of the multiple electrical connections comprises a first surface configured to abut the bottom surface of the respective connection receptacle, wherein the first arm and the second arm of each of the multiple electrical connections project onto or near the first surface of the mounting section. Electrical connector according to claim 7, wherein the roots of the third arm and the fourth arm of each of the multiple electrical connections connected to the assembly section are configured such that the roots lie in the second direction on or near surface parts of the at least one base body surface opposite the first and second slots when the electrical connection is mounted in the respective connection receptacle. Electrical connector according to claim 7, wherein each of the first, second, third and fourth arm of each of the multiple electrical connectors extends in the first direction away from the mounting section or extends obliquely in the second direction away from the first surface while extending away from the mounting section. Electrical connector according to claim 7, wherein the first surface of the mounting section of each of the multiple electrical connections comprises at least one first projection extending outwards in a second direction, and wherein the bottom surface of the corresponding connection receptacle is provided with at least one first groove for receiving the at least one first projection. Electrical connector according to claim 10, wherein the assembly section of each of the multiple electrical connections comprises a recess formed by the first surface in the assembly section, wherein the at least one first protrusion extends from a bottom surface of the recess beyond the first surface. Electrical connector according to claim 11, wherein the first projection of each of the multiple electrical connections has a projecting length in the second direction which is equal to or less than a depth of the corresponding first groove. Electrical connector according to claim 12, wherein the at least one first projection of each of the multiple electrical connections comprises two or more first projections spaced apart in the first direction, and wherein the at least one groove comprises two or more correspondingly arranged first grooves. Electrical connector according to claim 12, wherein the at least one first projection of each of the multiple electrical connections has in at least a part of its projecting length a part whose cross-section changes perpendicular to the projecting direction. Electrical connector according to claim 14, wherein the assembly section of each of the multiple electrical connections comprises a second surface opposite the first surface and at least two second projections extending outwards from the second surface outwards from the connection receptacle, wherein the at least two second projections are spaced apart in the first direction. Electrical connector according to claim 15, wherein each of the multiple electrical connections comprises two second protrusions that project in the second direction by an equal distance from the second surface. Electrical connector according to claim 16, wherein each of the multiple electrical connections further comprises at least one additional second projection between the two second projections, wherein the at least one additional second projection extends in the second direction by a distance from the second surface which is less than or equal to that of the two second projections. Electrical connector according to claim 17, wherein the at least one base body surface comprises a projection extending towards the inner surface, wherein the first slot and the second slot are spaced apart in the first direction by the projection, and wherein the at least two second projections extend outwards from a receiving section of the connector receptacle in which the projection is located towards the inner surface. Electrical connector according to claim 18, wherein the projection comprises ribs that extend outwards between adjacent connection receptacles and are elongated in a first direction, wherein the ribs and / or the second projections are at the same height in the second direction. Electrical connector according to one of claims 1 to 19, wherein the electrical connection is a one-piece stamped part. Electrical connector according to claim 18, wherein the connector housing comprises a stop feature configured to engage with the projection when the connector assembly is inserted into the housing cavity to prevent further insertion of the connector assembly. Electrical connector according to claim 21, wherein the inner surface comprises a first surface section and a second surface section corresponding in the first direction to the first slot and the second slot, and a middle surface section connecting the two surface sections, wherein the stop feature is: a flange projecting inwards into the housing cavity between the first surface section and the middle surface section; or a stepped surface formed by offsetting the first surface section from the middle surface section towards the housing cavity. Electrical connector according to one of claims 1 to 22, wherein the connector housing comprises a fixing device for fixing the connector housing to an external component. Electrical connector according to claim 23, wherein the fixing device comprises a nose extending outwards from an outer surface of the connector housing, the nose being provided with a threaded bore. Electrical connector according to claim 23 or 24, wherein the fixing device comprises a locking element connected to an outer surface of the connector housing, which is provided with a locking slot suitable for locking an external component. Electrical connector according to claim 25, wherein the locking element comprises one or more claws that define the locking slot. Electrical connector according to one of claims 1 to 26, wherein the at least one base body surface comprises only the first base body surface. Electrical connector according to any one of claims 1 to 26, wherein the at least one base body surface comprises both the first base body surface and the second base body surface, wherein the multiple connection receptacles comprise a first plurality of connection receptacles formed on the first base body surface and a second plurality of connection receptacles formed on the second base body surface, wherein the multiple electrical connections comprise a first plurality of electrical connections corresponding to the first plurality of connection receptacles and a second plurality of electrical connections corresponding to the second plurality of connection receptacles, and wherein the inner surface comprises a first inner surface and a second inner surface, each opposite the first base body surface and the second base body surface;wherein the first plurality of connection receptacles and the second plurality of connection receptacles, as well as the first plurality of electrical connections and the second plurality of electrical connections, are each arranged oppositely in the second direction, wherein the first slot comprises: a first slot bounded between the first base body surface and the first inner surface and a first slot bounded between the second base body surface and the second inner surface, and wherein the second slot comprises: a second slot bounded between the first base body surface and the first inner surface and a second slot bounded between the second base body surface and the second inner surface. Electrical connector according to claim 28, wherein the first plurality of electrical connections and the second plurality of electrical connections are identically constructed. Electrical connector according to claim 29, wherein each of the first plurality of connection receptacles is aligned with a corresponding one of the second plurality of connection receptacles in the second direction; or each of the first plurality of connection receptacles is offset to a corresponding one of the second plurality of connection receptacles in the third direction. Electrical connector according to any one of claims 1 to 30, wherein the connector housing comprises a support section arranged near the first slot, which includes a slot opening that communicates with the first slot in the third direction and is elongated in the second direction. Connector arrangement comprising: an electrical connector according to any one of claims 1 to 31; a first electrical means comprising a first electrical connection arrangement, wherein the first electrical connection arrangement is inserted into the first slot such that electrical connections of the first electrical connection arrangement are electrically connected to contact sections of the multiple electrical connections of the electrical connector extending into the first slot; and a second electrical means comprising a second electrical connection arrangement, wherein the second electrical connection arrangement is inserted into the second slot such that electrical connections of the second electrical connection arrangement are electrically connected to contact sections of the multiple electrical connections of the electrical connector extending into the second slot. Connector arrangement according to claim 32, wherein the second electrical means further comprises a second central housing made of an insulating material and carrying the second electrical connection arrangement, wherein both the second central housing and the second electrical connection arrangement are partially inserted into the second slot. Connector arrangement according to claim 33, wherein the first electrical means further comprises a first central housing made of an insulating material and carrying the first electrical connection arrangement, wherein both the first central housing and the first electrical connection arrangement are partially inserted into the first slot. Connector arrangement according to one of claims 32 to 34, wherein each of the first and second electrical connection arrangements is a flat conductor connection arrangement comprising a flat conductor connection or a socket connection arrangement comprising a socket-shaped electrical connection. Connector arrangement according to claim 32 or 33, wherein the connector housing of the electrical connector comprises a support section arranged near the first slot, which includes a slot opening that communicates with the first slot in the third direction and is elongated in the second direction, wherein the first electrical connection arrangement is partially inserted into the first slot through the slot. Connector arrangement according to claim 36, wherein the first electrical connection arrangement is a flat conductor connection arrangement comprising a flat conductor connection, and wherein the second electrical connection arrangement is a flat conductor connection arrangement comprising a flat conductor connection or a socket connection arrangement comprising a socket-shaped electrical connection. Connector arrangement according to claim 35 or 37, wherein the electrical connection arrangement comprising the flat conductor connection is FFC or FPC. Electrical connector comprising: a connector housing made of an insulating material and defining a housing cavity extending through the connector housing in a first direction; and a terminal arrangement arranged in the housing cavity, comprising a base body and multiple electrical terminals supported by the base body, each of the multiple electrical terminals comprising a retaining section, a pin section, and an arm section extending oppositely from the retaining section, the pin section comprising a pin contact section and the arm section comprising an arm contact section, the base body comprising a first base body surface and a second base body surface oriented opposite each other in a second direction perpendicular to the first direction, at least one of the first base body surface and the second base body surface having multiple terminal receptacles.which extend in the second direction into the base body, wherein the multiple connection receptacles are spaced apart in a third direction perpendicular to both the first and second directions, each of the multiple electrical connections being configured such that, when mounted in a corresponding connection receptacle: an arm-counter section of its arm section projects from the connection receptacle and into a slot between the at least one base body surface and an opposite inner surface of the connector housing, and its pin section projects from the connection receptacle in the first direction and is cantilevered in the housing cavity, wherein an initial clearance is formed between the arm section of each of the multiple electrical connections and a base of the corresponding connection receptacle, which allows the arm section to be deflected towards the base of the connection receptacle. Electrical connector according to claim 39, wherein the base body comprises a first part and a second part which are connected to each other in the first direction, wherein a first surface part of the at least one base body surface, provided by the first part, is offset in the second direction from a second surface part of the first base body surface, provided by the second part, towards the inner surface of the connector housing, wherein the slot in the second direction is limited between the second surface part and the inner surface of the connector housing. Electrical connector according to claim 40, wherein the retaining section of each of the multiple electrical connections is received in a receiving section of the corresponding connection receptacle located in the first part, wherein the arm section is received in a receiving section of the corresponding connection receptacle located in the second part, and wherein the pin section projects from the first part in the first direction. Electrical connector according to claim 41, wherein the arm section of each of the multiple electrical connections comprises a first arm extending from the holding section, wherein the first arm has a first arm contact section. Electrical connector according to claim 42, wherein the arm section of each of the multiple electrical connectors further comprises a second arm extending from the retaining section parallel to the first arm and offset in the second direction from the first arm away from the bottom of the corresponding connector receptacle to form a gap between the second arm and the first arm. Electrical connector according to claim 43, wherein the second arm of each of the multiple electrical connections comprises a second arm contact section, wherein the first arm contact section and the second arm contact section are aligned and spaced apart in the first direction and extend an equal distance from the corresponding connection receptacles. Electrical connector according to claim 44, wherein the pin contact section of each of the multiple electrical terminals is a pin contact surface extending in a plane defined by the first direction and the third direction. Electrical connector according to claim 45, wherein the pin section of each of the multiple electrical connections has a tapered tip. Electrical connector according to one of claims 39 to 46, wherein each of the multiple electrical connections comprises a first connection element and a second connection element, wherein the first connection element comprises the arm section and a first connecting section, wherein the second connection element comprises the pin section and a second connecting section, and wherein the first connecting section and the second connecting section are connected to each other to form the retaining section. Electrical connector according to claim 47, wherein the first connecting section and the second connecting section are connected to each other by at least one of the following processes: snapping, welding, riveting and positive locking. Electrical connector according to claim 47, wherein the first connecting section comprises two first legs extending opposite to the arm section and spaced apart from each other, wherein the two first legs comprise two first protrusions projecting towards each other, wherein the two first protrusions each comprise an arm contact section, wherein the arm contact sections define a minimum first distance and are configured for elastic clamping to a second thickness of the second connecting element, and wherein the first distance is smaller than the second thickness. Electrical connector according to claim 49, wherein the second connecting section comprises two second legs extending opposite to the pin section and spaced apart from each other, wherein the two second legs comprise two second protrusions projecting towards each other, wherein the two second protrusions each comprise a pin contact section, wherein the pin contact sections define a minimum second distance and are configured for elastic clamping to a first thickness of the first connecting element, and wherein the second distance is smaller than the first thickness. Electrical connector according to claim 50, wherein the arm contact sections of the two first protrusions are aligned in the second direction. Electrical connector according to claim 51, wherein the pin contact sections of the two second protrusions are offset from each other in the third direction. Electrical connector according to claim 52, wherein the first connection element is a plate-shaped element with the first thickness and the second connection element is a plate-shaped element with the second thickness. Electrical connector according to claim 53, wherein the first thickness is smaller than the second thickness. Electrical connector according to claim 54, wherein the first thickness is about 0.2 mm. Electrical connector according to claim 55, wherein the second thickness is 0.4 to 0.5 mm. Electrical connector according to one of claims 48 to 56, wherein the first connection element of the electrical connection and the base body of the connection arrangement comprise features which engage with each other when the electrical connection is inserted into the corresponding connection receptacle. Electrical connector according to claim 57, wherein one of the first connection element and the base body of the connection arrangement comprises a limiting block and the other comprises a limiting groove suitable for receiving the limiting block. Electrical connector according to one of claims 39 to 58, wherein the base body has an end face on which the pin section protrudes from the terminal receptacle, wherein the end face comprises a bulge located between electrical terminals adjacent in the third direction. Electrical connector according to any one of claims 39 to 59, wherein the connector housing comprises a nose with a threaded bore; and / or a locking element with a locking slot for snapping onto an external component. Connector arrangement comprising: an electrical connector according to any one of claims 39 to 60; a first electrical means comprising a first electrical connection arrangement, wherein the first electrical connection arrangement is configured for insertion into the slot to be electrically connected to the arm contact sections of the multiple electrical terminals of the electrical connector; and a second electrical means comprising a second electrical connection arrangement, wherein the second electrical connection arrangement comprises a socket-shaped electrical terminal, and wherein the second electrical connection arrangement is suitable for insertion into the housing cavity to be electrically connected to the pin sections of the multiple electrical terminals of the electrical connector. Connector arrangement according to claim 61, wherein the first electrical connection arrangement of the first electrical means is FFC or FPC. Connector arrangement according to claim 62, wherein the socket-shaped electrical connection is a crimp connection for a cable. Connector arrangement according to claim 63, wherein the second electrical means further comprises a cable connected to the crimp terminal. Connector arrangement according to claim 64, wherein the first electrical means comprises a first central housing which carries the first electrical connection arrangement, wherein the first central housing comprises an elastic snap structure and the connector housing comprises a hook section configured to snap into the elastic snap structure. Connector arrangement according to claim 65, wherein the first electrical means further comprises a CPA component configured to lock the elastic latching structure and the hook section in an engaged state.

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