DE102020103554A1 - SMD terminal and SMD terminal arrangement - Google Patents

Abstract

The present invention relates to an SMD terminal (2), in particular an SMD connection or SMD connection terminal, comprising a contact body (3) with a clamping body (30) with a clamping point (K) for fastening an electrical conductor in an insertion direction (E ), and a flat connection area (31) extending in a plane (X) for surface mounting of the SMD terminal (2) on a printed circuit board (L), as well as an insulation wall (4) which extends along at least part of the contact body ( 3) extends laterally limiting with respect to the insertion direction (E) in such a way as to protrude on a side of the plane (X) facing away from the contact body (3) with a projection section (40). The invention also relates to a corresponding SMD terminal with two corresponding contact bodies (3), the connection areas (31) of all contact bodies (3) extending in the same plane (X), and with at least one between each two adjacent contact bodies (3) Part of the contact body (3) laterally separating insulation wall (4) extends so as to protrude on a side of the plane (X) facing away from the contact bodies (3) with a protruding section (40). The invention also relates to an SMD terminal arrangement (1) with a printed circuit board (L) and a surface-mounted SMD terminal according to the invention.

Description

The present invention relates to an SMD (surface-mounted device; surface-mounted component) terminal, in particular an SMD connection terminal or SMD connection terminal and an SMD terminal arrangement which has the SMD terminal and which also has a printed circuit board on which the SMD Clamp (s) is / are surface-mounted.

Connection terminals or connection terminals are sufficiently known from the prior art. On the one hand, these can be provided loosely and, if necessary, fastened, for example, by means of connecting elements (for example snaps, screws, adapters, etc.). It is also conceivable to provide these terminals on a printed circuit board. This is done, for example, by means of through-hole assembly (THT), in which wire connections (solder pins) of the terminal are inserted through contact holes in the circuit board and then soldered on the back to a conductor track on the circuit board. Alternatively, for example, also by means of surface mounting (surface-mounted technology; SMT), in which the component is soldered as a surface-mounted device (SMD) by means of flat connection areas (contact lugs) directly on the side of the component on the circuit board.

For example, when using such terminals for the network area, but also for other purposes, there are different high demands on the given clearance and creepage distance. In order to adhere to this, the current-carrying components, therefore also the contact bodies of the respective terminal, must be laterally spaced accordingly. By providing additional insulating components or structures between the current-carrying components, the air and creepage distances can be increased. For example, in the case of printed circuit boards with terminals provided in through-mounting, it was known to have sections of a higher-level, insulating module housing (e.g. a lamp housing) protrude between the respective contact elements of the terminals in order to achieve an insulating spatial separation of the soldered connections provided on the rear. Such a separation is unsuitable for SMD terminals, however, since the contact areas between the terminal and the printed circuit board are covered by the terminal itself and therefore these contact areas are not accessible, for example for a higher-level module housing. In this respect, especially in the case of SMD terminals, their current-carrying components are provided laterally spaced apart from one another as far as required by the correspondingly required air and creepage distances. The width of such a structure depends not least on the required clearance and creepage distance, which increases with the increasing number of poles of a multi-pole terminal structure, which in turn results in a minimum circuit board width with the required number of poles or a limited number of poles with a required maximum width of the circuit board has the consequence.

It is therefore an object of the present invention to provide an SMD terminal and a corresponding SMD terminal arrangement which enable a construction that is as compact as possible while maintaining the desired air and creepage distances.

This problem is solved by the subject matter of the independent claims. The dependent claims further develop the central concept of the present invention in a particularly advantageous manner.

According to a first aspect, the present invention relates to an SMD terminal, in particular an SMD connection terminal or SMD connection terminal. The SMD terminal has a contact body. The contact body in turn has a clamping body with a clamping point for fastening an electrical conductor in an insertion direction. Furthermore, the contact body has a flat connection area extending in one plane for surface mounting of the SMD terminal on a printed circuit board. The SMD terminal also has an insulation wall which extends along at least part of the contact body (preferably at least the clamping body) in a laterally limiting manner with respect to the insertion direction in such a way as to provide a projection section (i.e. a projection wall section or) on a side of the plane facing away from the contact body . Protrusion insulation wall section) protrude. The latter in particular in order to lengthen a clearance and creepage distance of two identical SMD terminals arranged laterally with respect to the insertion direction in a row next to one another compared to comparable SMD terminals without such a protruding section.

The SMD terminal thus carries an element that extends air and creepage distances (namely the insulation wall extended into the protruding section, which consequently also forms a wall section), which is automatically provided between them when several such SMD terminals are installed next to one another in series. Thus, even if the accessibility of the SMD terminals is difficult in the connection area, a measure to lengthen air and creepage distances can be provided in a safe manner, so that several such SMD terminals can also be arranged next to one another in a particularly compact manner.

The SMD terminal can furthermore have a further insulation wall which laterally delimits the contact body in a side facing away from the contact body of the insulation wall, the further insulation wall also delimiting laterally along at least part of the contact body (preferably at least the clamping body) with regard to the insertion direction extends in such a way as to protrude on a side of the plane facing away from the contact body with a further protrusion section (that is to say a more comparable protrusion wall section or protrusion insulation wall section). Consequently, the protruding section and the further protruding section then protrude on the same side with respect to the plane as a wall section and thus form a corresponding measure to lengthen air and creepage distances on both sides of the contact body.

According to a further aspect, the present invention also relates to an SMD terminal, in particular an SMD connecting terminal or SMD connecting terminal, which has at least two or more contact bodies. The contact bodies in turn each have a clamping body with a clamping point for fastening an electrical conductor in an insertion direction and a flat connection area extending in one plane for surface mounting of the SMD terminal on a circuit board. The connection areas of at least one, several or all of the contact bodies preferably extend essentially in the same plane. Between two adjacent contact bodies (i.e. between two or all of the adjacent contact bodies) an insulation wall laterally separating at least part of the contact bodies (preferably at least their clamping bodies) extends in such a way as to provide a projection section (i.e. a protruding portion (i.e. a Projecting wall section or projection insulation wall section). The latter in particular in order to lengthen a clearance and creepage distance in each case between two adjacent contact bodies of the SMD terminal in comparison to such contact bodies of an SMD terminal without such protrusion sections.

Thus, an SMD terminal is provided which has several contact bodies, two adjacent or each contact body being electrically insulated laterally from the respective adjacent contact body in such a way that an insulation wall providing the insulation also protrudes from the plane described above, thus around an air - and to lengthen the creepage distance between the contact bodies adjacent in this way with respect to an SMD terminal in which the projection sections would not be provided. In this way, the SMD terminal itself can directly bring the air and creepage distances lengthening measures (namely the insulation wall extended into the protruding section, which consequently also forms a wall section), so that these are automatically made available when the same is installed. Depending on the design of the protruding section, a corresponding clearance and creepage distance can be provided, depending on these and the given electrical requirements, a particularly compact provision of the contact bodies, since the contact bodies are laterally close to one another, is possible; this regardless of the difficult accessibility of the SMD terminal in the connection areas.

The directions of insertion of the contact bodies are preferably aligned parallel to one another. A particularly compact and easy-to-use SMD terminal can thus be provided. The insertion direction of the simple SMD terminal according to the first aspect or the insertion directions of the SMD terminal according to the second aspect can accordingly extend or be aligned parallel to the plane, which can lead to a particularly compact design and also compact operability, because the corresponding electrical conductors can be fed flat in the plane of the corresponding SMD terminal.

The contact bodies can be arranged laterally in a row next to one another with respect to the insertion directions and can be distributed preferably parallel to the plane. In this way, an SMD terminal can be provided with any number of contact bodies arranged side by side and thus in a particularly compact manner. Due to the arrangement distributed parallel to the plane, the use of identical parts for the contact bodies is particularly easy, since these then, for example, provide the connection areas in the same way for surface mounting, which in turn easily enables a connection via the connection areas preferably provided in the same plane.

The SMD terminal can furthermore have at least one further insulation wall which laterally delimits at least one or at least two further insulation walls which at least both outer contact bodies of the contact bodies arranged in series on a side facing away from the contact body of the insulation wall, with the other Insulation wall also extends along at least part of the associated contact body (preferably the associated clamping body) in a laterally limiting manner with respect to the insertion direction in such a way as to protrude on a side of the plane facing away from the contact body with a further projection section. The provision of at least one more Insulation wall with a further protruding section on one side of the SMD terminal makes it possible to provide an SMD terminal which can be combined in any number in series with other similar SMD terminals, the SMD terminal at the same time as a partition to the neighboring SMD -Bringing clamp right away. If a corresponding further insulation wall with a further protruding section is arranged opposite one another on both sides, it can furthermore be made possible, regardless of the configuration of neighboring electrical components, to directly bring along a measure to lengthen the air and creepage distances.

The insulation walls, that is to say the insulation walls preferably including the further insulation walls, are preferably aligned parallel to one another. In this respect, a largely symmetrical configuration of the interconnected contact bodies can be provided. On the one hand, this enables simple production of the SMD terminal. In addition, a clear and reliable delimitation of the contact bodies can easily be provided by means of appropriate insulating measures. In addition, the parallel configuration offers a particularly compact design of a corresponding SMD terminal.

At least the further protrusion sections and preferably the entire further insulation wall can preferably be narrower than and preferably half as wide as the or one of the insulation walls or at least their protrusion sections when viewed transversely to their direction of extension or transversely to the insertion direction of the associated contact body. In this way, the outer wall areas of the clamp can be made narrower, so that when clamps of the same type are arranged in a row, a combined width of the insulation walls results in the area between the clamps. Thus, with a particularly compact design, a sufficient clearance and creepage distance can also be made possible in the contact area between two adjacent terminals.

The insulation wall (s), preferably also the further insulation wall (s) insulation walls, can preferably extend in such a way that they extend along at least that part of the associated contact body which extends most laterally outward transversely to the insertion direction and parallel to the plane - than towards the isolation wall - extends. In this respect, the insulation wall can be provided in a preferred area to extend a clearance and creepage distance of the SMD terminal.

The insulation wall / insulation walls, preferably also the further insulation wall / insulation walls, can extend in the insertion direction along the entire clamping body or contact body adjacent to it, preferably with respect to the insertion direction in and / or against the ice insertion direction over the clamping body and further preferably protrude the entire contact body. In this way, the clearance and creepage distance can be set in any way.

The connection area preferably extends essentially parallel to the respective insertion direction. In this respect, a compact design of the respective contact body and thus of the SMD terminal as a whole can be achieved when viewed transversely to the insertion direction.

Each of the clamping bodies can have a contact frame as well as a clamping spring held therein for preferably tool-free and further preferably detachable reception of an electrical conductor introduced in the insertion direction. By means of such a clamping body, a simple connection of an electrical conductor, which is known in its basic structure, is made possible.

The SMD terminal can also have an insulating housing in which the contact body or bodies are at least partially accommodated. To enable the SMD terminal to be connected to a printed circuit board, the connection areas are exposed to the outside with respect to the insulation housing. According to a preferred embodiment, the insulation wall / insulation walls and further preferably the further insulation wall / insulation walls can be formed integrally with the insulation housing. Thus, the insulation wall can be formed integrally in a simple manner with an insulation housing receiving the contact bodies, which simplifies the production of the insulation areas and thus the SMD terminal as a whole.

According to a further aspect, the present invention also relates to an SMD terminal arrangement. This has at least one of the SMD terminals according to the invention. In addition, the SMD terminal arrangement also has at least one circuit board with the connection point corresponding to the connection area of the SMD terminal or connection points corresponding to the connection areas of the SMD terminal, via which the SMD terminal (s) are connected to the circuit board in surface mounting, the circuit board for each protrusion section (that is, for each protrusion section and, if present, furthermore for each further protrusion section) has a recess into which the respective protrusion section protrudes.

By providing a corresponding recess in the circuit board, the SMD terminal can be provided in a flat and compact manner on the circuit board in a surface-mounted manner, while at the same time the clearance and creepage distance lengthening measures, namely the projection portions, are provided safely and automatically. Consequently, the projection sections do not impair the mounting of the SMD terminal on the circuit board.

The recess or recesses are preferably designed as through openings, that is to say they extend through the printed circuit board in particular transversely to its generally flat direction of extent. The projection section (s) then preferably project at least partially into the respective through opening or completely protrude through the circuit board via the through opening. The provision of a corresponding through opening enables the use of SMD terminals according to the invention with protrusion sections protruding as far as desired with respect to the plane, so that a correspondingly required clearance and creepage distance can be provided in any way by designing the insulation wall. By means of such a printed circuit board, SMD terminals according to the invention can also be provided or combined with differently protruding protrusion sections.

• 1 eine Vorderansicht einer erfindungsgemäßen SMD-Klemmenanordnung mit einer SMD-Klemme gemäß einem ersten Ausführungsbeispiel der vorliegenden Erfindung,
• 2 eine Seitenansicht der SMD-Klemmenanordnung gemäß 1,
• 3 eine Draufsicht der SMD-Klemmenanordnung gemäß 1,
• 4 eine perspektivische Unteransicht der SMD-Klemmenanordnung gemäß 1,
• 5 eine Leiterplatte der SMD-Klemmenanordnung gemäß 1,
• 6 eine perspektivische Unteransicht der erfindungsgemäßen SMD-Klemme gemäß 1,
• 7 eine Vorderansicht der SMD-Klemme gemäß 6,
• 8 eine perspektivische Unteransicht einer SMD-Klemme gemäß einem weiteren Ausführungsbeispiel der vorliegenden Erfindung, und
• 9 eine Vorderansicht der SMD-Klemme gemäß 8.

Further exemplary embodiments and advantages as well as features of the present invention will now be described with reference to the figures of the accompanying drawings. Show it:

• 1 a front view of an SMD terminal arrangement according to the invention with an SMD terminal according to a first embodiment of the present invention,
• 2 a side view of the SMD terminal arrangement according to 1 ,
• 3 a top view of the SMD terminal arrangement according to 1 ,
• 4th a perspective bottom view of the SMD terminal arrangement according to FIG 1 ,
• 5 a circuit board of the SMD terminal arrangement according to 1 ,
• 6th a perspective bottom view of the SMD terminal according to the invention according to 1 ,
• 7th a front view of the SMD terminal according to 6th ,
• 8th a perspective bottom view of an SMD terminal according to a further embodiment of the present invention, and
• 9 a front view of the SMD terminal according to 8th .

the 1 until 4th show an SMD terminal arrangement 1 according to the present invention.

The SMD terminal arrangement 1 has at least one - here two - SMD terminals according to the invention 2 on. The SMD terminals 2 form an independent part of the present invention and are described in more detail below.

the 1 until 4th and FIGS. 6 and 7 show an SMD terminal 2 according to a first embodiment of the present invention. the 8th and 9 show an SMD terminal 2 according to a second embodiment of the present invention. In the case of the SMD terminal according to the invention 2 it is in particular an SMD connection terminal or an SMD connection terminal.

The SMD terminal 2 has at least two or more - here three - contact bodies 3 on. The contact body 3 in turn each have a clamping body 30th with a terminal point K for fastening an electrical conductor, not shown here, in an insertion direction E. on. Like that 1 , 3 as can essentially be seen from 6 to 9, each of the clamping bodies 30th a contact frame 32 and a clamping spring held therein 33 for preferably tool-free and furthermore preferably detachable receiving one in the insertion direction E. Have introduced electrical conductor. The clamping spring 33 can for this purpose have a contact leg which is connected to a clamping section of the contact frame 32 the terminal point K forms and is biased towards the clamping portion. The contact leg can be moved between such a closed position and an open position in which the contact leg is spaced apart from the clamping section for inserting an electrical conductor. Alternatively, the terminal point K can also be provided in other ways, for example by means of a screw connection.

Furthermore, each of the contact bodies 3 one in one plane X extending, flat connection area 31 for surface mounting of the SMD terminal 2 on a circuit board L. . These connection areas 31 are, as shown in the exemplary embodiments, in particular designed as so-called contact lugs, which are flat on corresponding connection points A. a circuit board L. placed and then electrically connected to them (e.g. by means of a soldered connection). The connection areas 31 all contact bodies 3 can be preferred in the same plane X extend. The connection area 31 can preferably be essentially parallel to the respective insertion direction E. extend. Any connection area 31 can, as shown, several - here two - connection sections 34 each of which can be designed, for example, as a contact tab.

At least one part of these contact bodies extends between each two adjacent contact bodies 3 , preferably their clamp body 30th , laterally separating insulation wall 4th so as to be on one of the contact bodies 3 facing away from the plane X with a protruding portion 40 to preside. These protruding portions 40 are, for example, clearly in the 6th and 7th to be recognized and provided here as wall sections or webs protruding from the underside. The protruding sections 40 thus form the corresponding protruding section of the insulation wall 4th away. Like that 6th and 7th it can also be seen that these are protruding sections 40 Due to their design and positioning as described above, they are consequently designed in such a way that they create an air gap and creepage distance between adjacent contact bodies 3 extended; compared to the same SMD terminals without corresponding protrusion sections 40 .

Like the one in particular 1 , 3 , 7th and 9 can be seen, the directions of insertion E. the contact body 3 preferably all aligned parallel to each other. As well as that 1 , 7th and 9 is easy to see, the directions of insertion extend E. preferably all parallel to the plane X .

Like the one in particular 1 , 3 and 6 to 9 are the contact bodies 3 regarding the direction of insertion E. laterally arranged in a row next to each other and preferably to the level X distributed in parallel.

The SMD terminal 2 can also have at least one further insulation wall 5 have which at least one of the outer contact bodies 3 the contact bodies arranged in series 3 on one with respect to the contact body 3 the isolation wall 4th facing away from the side limited. In the exemplary embodiment shown here, the SMD terminal 2 at least two more isolation walls 5 on which at least both outer contact bodies 3 the contact bodies arranged in series 3 on one with respect to the respective contact body 3 the isolation wall 4th facing away from the side limited. The further isolation wall 5 also extends along at least part of the associated contact body 3 and preferably the associated clamping body 30th regarding the direction of insertion E. laterally limiting in such a way to be on one of the contact body 3 facing away from the plane X with another protruding portion 50 to preside. These further protruding sections 50 are particularly evident in the 9 to recognize.

Again 9 can be seen, at least the further projection sections 50 and preferably the entire further insulation wall 5 seen here in the direction transverse to its direction of extension, so here transverse to the direction of insertion E. of the assigned contact body 3 seen, narrower and preferably half as wide as the other isolation walls 4th or protrusion portions 40 be trained. An overall narrow or compact design can thus be achieved. For example, when combining two such SMD terminals 2 for arrangement in a row next to one another then form the laterally outer (further) protrusion sections 50 with the associated insulation walls 5 a width which is that of the protruding portions 40 as well as the associated insulation walls 4th is equivalent to. Thus it is automatically for all contact bodies 3 even with several SMD terminals arranged next to one another 2 - therefore also an SMD terminal 2 overall - the same or a desired clearance and creepage distance provided. This enables a maximally compact design while maintaining defined or desired clearances and creepage distances.

At this point it should be noted that in addition to the SMD terminal shown here 2 with several contact bodies 3 it is also conceivable, in its simplest embodiment, an SMD terminal 2 provide which only a contact body 3 having. This then also has a clamping body 30th with terminal point K for fastening an electrical conductor in one insertion direction E. on. The contact body also has 3 then one corresponds to one another in a plane X extending, flat connection area 31 for surface mounting of the SMD terminal 2 on a circuit board L. on. This simple form of an SMD terminal 2 then also has an isolation wall 4th on, which extends along at least part of the contact body 3 , preferably the clamp body 30th , regarding the direction of insertion E. laterally limiting in such a way to be on one of the contact body 3 facing away from the plane X with a corresponding protruding portion 40 to preside. If you arrange several of these simple SMD terminals 2 next to each other, each brings its own insulation wall to the then adjacent SMD terminal 2 with, so that between all contact bodies then arranged next to one another in a row 3 a corresponding clearance and creepage distance in accordance with the configuration of the projection sections 40 provided.

Even with the simple design of the SMD terminal 2 it is conceivable that this also has a further insulation wall 5 has, which the contact body 3 on one with respect to the contact body 3 the isolation wall 4th facing away from the side limited, with the further insulation wall 5 likewise along at least part of the contact body 3 , preferably the clamp body 30th , with respect to the direction of insertion E. laterally limiting in such a way to be on one of the contact body 3 facing away from the plane X with another protruding portion 50 to preside.

In contrast to the variant with several contact bodies 3 per SMD terminal 2 can the simple design of the SMD terminal 2 offer particularly high flexibility with regard to the composition and in particular the number of poles to be used. The SMD terminal, on the other hand, offers 2 with several contact bodies 3 the advantage of improved handling.

The isolation walls 4th , 5 (including their protruding sections 40 , 50 ) are preferably aligned parallel to one another, such as this, for example 1 , 7th and 9 can be clearly seen. This ensures a particularly compact design with a reliable, insulating demarcation of the adjacent contact bodies 3 from each other.

The isolation wall 4th , preferably also the further insulation wall 5 , can preferably extend such that they extend along at least the part of the contact body 3 extends which extends transversely to the insertion direction E. and parallel to the plane X extends most laterally outward; hence the neighboring insulation wall 4th , 5 comes closest or the adjacent contact body 3 is closest. In this respect, the isolation wall 4th , 5 be provided in a particularly favorable position for increasing the clearance and creepage distances.

Like the one in particular 6th and 8th can be seen, the isolation walls 4th , preferably also the other insulation walls 5 , in the direction of insertion E. along the entire clamping body adjacent to them 30th or contact body 3 extend. These can preferably be with respect to the direction of insertion E. in and / or against the insertion direction E. over the clamp body 30th (as in the 6th and 8th can be seen) and more preferably even over the entire contact body 3 protrude. Thus, depending on the design of the contact body 3 , the clearance and creepage distance can be set as required.

Like the one in particular 1 until 4th and 6th until 9 can be seen, the SMD terminal 2 also an insulation housing 6th have in which the contact body or bodies 3 are at least partially included. To enable surface mounting, at least the connection areas are here 31 from the insulation housing 6th provided or exposed facing outwards. In a particularly preferred embodiment, the insulation wall 4th and also the further insulation wall 5 if present, integral with the insulation housing 6th educated. This particularly facilitates the production of a corresponding insulation housing 6th . The isolation housing 6th can, for example, be manufactured as a (one-piece) injection-molded part. The isolation housing 6th preferably has a conductor insertion channel 60 , which here in the direction of insertion E. to the terminal point K runs towards.

As already stated in the introduction, the figures also show an SMD terminal arrangement 1 . This is in the 1 until 4th shown. The SMD terminal arrangement 1 has at least one of the SMD terminals according to the invention 2 on. In the embodiment shown here 1 until 4th there are two SMD terminals here 2 according to the embodiment of 6th and 7th intended.

In addition, the SMD terminal arrangement 1 also a printed circuit board L. on. The circuit board L. again has one with the connection area 31 the SMD terminal 2 corresponding junction A. or with the connection areas 31 the SMD terminal 2 corresponding connection points A. , via which the SMD terminal (s) 2 with the circuit board L. are connected in surface mount. The circuit board L. has each projection section 40 , 50 a recess Z on how this exemplifies the 5 and also the 4th can be found. In these recesses Z the respectively assigned projection section protrudes 40 , 50 into it, as in particular the perspective view from below of the SMD terminal arrangement 1 according to 4th can be found. As can be seen here, the middle recess is Z between the two SMD terminals 2 open; so not by a projection section 40 , 50 proven. This is because the SMD terminal used here 2 only between the sprags 30th an isolation wall each 4th but not on the outside of the SMD terminal 2 , as in the embodiment of 8th and 9 the case is. In this respect, it may be necessary between these neighboring SMD terminals 2 a greater distance can be selected than this between the contact bodies 3 the SMD terminal according to the invention 2 is the case in order to meet a corresponding clearance and creepage distance requirement. However, to also use these SMD terminals 2 to be able to build in a more compact way with neighboring SMD terminals, for example one here in the 8th and 9 SMD terminal shown 2 be used. In the case of an adjacent arrangement of the same, the respectively outer and mutually facing further insulation walls are then located 5 along with their protruding portions 50 to each other and thus form an intermediate, combined air and creepage distance lengthening measure. To these SMD terminals 2 then to be arranged next to each other as compactly as possible, as in the 8th and 9 shown here, the outer further insulation walls 5 including protrusion sections 50 a smaller width B5 than the width B4 the other isolation walls 4th and their protruding portions 40 on. This results in two adjacent side by side and adjacent further insulation walls 5 including the corresponding projection sections 50 adjacent SMD terminals 2 in the area of the combined additional insulation walls 5 a comparable width and thus clearance and creepage distance as they are between the insulation wall 4th separate contact bodies 3 of the individual SMD terminal 2 results.

As well as that 4th and 5 can be seen, the recesses Z be designed as through openings. The projection section or sections 40 , 50 can then at least partially protrude into the respective through opening or, alternatively, the circuit board L. also protrude completely through the respective passage opening. Thus, depending on the configuration of the corresponding projection sections 40 , 50 , any air and creepage distance extension can be achieved, or SMD terminals 2 with differently protruding protrusion sections 40 , 50 with the corresponding circuit board L. be installed.

The present invention is not restricted by the exemplary embodiments described above, provided that it is covered by the subject matter of the following claims. In particular, the number of isolation walls 4th , 5 and associated protrusion sections 40 , 50 vary and for example. By one over the contact body 3 embodied number of poles N be (N-1), (N), or also (N + 1). The SMD terminals 2 are not limited in the number of their poles by the invention.

Claims (15)

SMD terminal (2), in particular SMD connection or SMD connection terminal, having: a contact body (3) with • a clamping body (30) with a clamping point (K) for fastening an electrical conductor in an insertion direction (E), and • a flat connection area (31) extending in a plane (X) for surface mounting of the SMD terminal (2) on a printed circuit board (L), as well as an insulation wall (4) which extends laterally along at least part of the contact body (3) with respect to the insertion direction (E) so as to protrude on a side of the plane (X) facing away from the contact body (3) with a protruding portion (40) . SMD terminal (2) according to Claim 1 , furthermore having a further insulation wall (5) which laterally delimits the contact body (3) on a side facing away from the contact body (3) of the insulation wall (4), the further insulation wall (5) also extending along at least part of the contact body ( 3) extends laterally limiting with respect to the insertion direction (E) in such a way as to protrude on a side of the plane (X) facing away from the contact body (3) with a further projection section (50). SMD terminal (2), in particular SMD connection or SMD connection terminal, having: at least two or more contact bodies (3) each with • a clamping body (30) with a clamping point (K) for fastening an electrical conductor in an insertion direction (E), • a flat connection area (31) extending in one plane (X) for surface mounting of the SMD terminal (2) on a printed circuit board (L), wherein the connection areas (31) of all contact bodies (3) extend in the same plane (X), between two adjacent contact bodies (3) an insulation wall (4) which laterally separates at least a part of the contact bodies (3) extends in such a way that a protruding portion (40) protrudes on a side of the plane (X) facing away from the contact bodies (3). SMD terminal (2) according to Claim 3 , the insertion directions (E) of the contact bodies (3) being aligned parallel to one another and preferably also parallel to the plane (X). SMD terminal (2) according to Claim 3 or 4th , the contact bodies (3) being arranged laterally in a row next to one another with respect to the insertion directions (E), preferably being distributed parallel to the plane (X). SMD terminal (2) according to Claim 5 , further comprising at least one further insulation wall (5) which has at least one or at least two further insulation walls (5) which at least both outer contact bodies (3) of the contact bodies (3) arranged in series on one with respect to the contact body (3) of the insulation wall (4) laterally limited, the further insulation wall (5) also extending laterally along at least part of the associated contact body (3) with respect to the insertion direction (E) so that on a side of the plane facing away from the contact body (3) (X) to protrude with a further projection portion (50). SMD terminal (2) according to Claim 2 or 6th , at least the further projection sections (50) and preferably the entire further insulation wall (5) seen in the direction transverse to the insertion direction (E) of the associated contact body (3), is narrower than and preferably half as wide as the or one of the insulation walls (4) or their projection sections (40). SMD terminal (2) according to one of the Claims 2 until 7th , wherein the isolation walls (4, 5) are aligned parallel to one another. SMD terminal (2) according to one of the preceding claims, wherein the insulation wall (4), preferably also the further insulation wall (5), extends in such a way that it extends along at least that part of the contact body (3) which extends transversely to Insertion direction (E) and parallel to the plane (X) extends most laterally outward. SMD terminal (2) according to one of the preceding claims, wherein the insulation wall (4), preferably also the further insulation wall (5), extends in the insertion direction (E) along the entire clamping body (30) or contact body (3) adjacent to it, preferably with respect to the insertion direction (E) in and / or against the insertion direction (E) over the clamping body (30) and more preferably the entire contact body (3) protrudes. SMD terminal (2) according to one of the preceding claims, wherein the connection area (31) extends essentially parallel to the respective insertion direction (E). SMD terminal (2) according to one of the preceding claims, wherein each of the clamping bodies (30) has a contact frame (32) and a clamping spring (33) held therein for preferably tool-free and further preferably detachable reception of an electrical conductor introduced in the insertion direction (E) . SMD terminal (2) according to one of the preceding claims, further comprising an insulation housing (6) in which the contact body (s) (3) are at least partially accommodated, wherein preferably the insulation wall (4), further preferably the further insulation wall (5) , is formed integrally with the insulation housing (6). SMD terminal arrangement (1), having • at least one SMD terminal (2) according to one of the preceding claims, and • At least one circuit board (L) with the connection area (s) (31) of the SMD terminal (2) corresponding connection point (s), via which the SMD terminal (s) (2) with the circuit board (L ) are connected in surface mounting, the printed circuit board (L) having a recess (Z) for each projection section (40, 50) into which the respective projection section (40, 50) protrudes. SMD terminal arrangement (1) according to Claim 14 , wherein the recess (s) (Z) is / are designed as a through opening (s), the projection section (s) (40, 50) protruding at least partially into the respective through opening or the printed circuit board (L) projecting completely through the through opening.

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