EP3118938A2 - Connector - Google Patents

Abstract

The present invention relates to a plug connector (1) having an insulating housing (2) and a spring force clamping connection (3) in the insulating housing (2) for clamping an electrical conductor (23, 26), wherein the spring force clamping connection (3) is designed as a plane spanning a plane, plate-shaped flat contact having a root portion (9) of which in two diametrically opposite directions in each case a pair of opposing Klemmkontaktabschnitte (10a, 10b) for clamping each of an electrical conductor (23, 26) or contact pin between a pair of such Klemmkontaktabschnitte (10a, 10b) abrag, is formed, and wherein the insulating housing (2) has opposite conductor insertion channels (4, 6) for inserting the electrical conductors (23, 26) or contact pins to be clamped, wherein the conductor insertion channels (4, 6) of the insulating housing (2) of the outside until at least the associated terminal contact portion (10a, 1 0b) that the Isolierstoffgehäuse (2) has a the conductor insertion channels (4, 6) intersecting slit-shaped contact receiving channel (8) and the plate-shaped flat contact for insertion into the contact receiving channel (8) and for fixing to the insulating housing (2) is formed ,

Description

The invention relates to a connector with an insulating material housing and a spring terminal connection in the insulating material housing for clamping an electrical conductor. The spring force clamping terminal is formed as a plane-spanning plate-shaped flat contact having a root portion from which protrude in two diametrically opposite directions each a pair of opposing Klemmkontaktabschnitte for clamping each of an electrical conductor or contact pin between a pair of such Klemmkontaktabschnitte. The insulating housing has opposite conductor insertion channels for insertion of the electrical conductors or contact pins to be clamped.

The invention further relates to a connector having an insulating housing and a spring terminal in the insulating housing for clamping an electrical conductor, wherein the spring terminal is formed as a plane spanning, plate-shaped flat contact with a root portion from which protrudes a Klemmkontaktabschnitt for clamping an electrical conductor.

DE 28 51 712 A1 discloses a connector for backplane wiring to electrical equipment having at least one contact member made of a flat stamping for solderless electrical connection and for supporting at least one insulated connector wire of the backplane. The trained as a flat stamped part contact part has two diametrically opposite Plug connections, which are designed as a fork contact with a resilient leg with barbs.

DE 25 17 465 C3 discloses a connector with a formed as a flat stamped part contact part for connecting wires and with a two-piece insulating material. The connector housing has an opening for receiving the contact part and is closed with a separate cover. The lid has insertion openings for insertion of an electrical conductor, which open into the free space provided in the connector housing for receiving the contact part.

Based on this, it is an object of the present invention to provide a further improved connector with an insulating material and at least one designed as a plate-shaped flat contact spring terminal connection, which ensures a reliable contact with the electrical conductor to be clamped in a simple and compact design.

The object is achieved with the connector with the features of claims 1 and 11. Advantageous embodiments are described in the subclaims.

It is proposed that the conductor insertion channels of the insulating housing extend from the outside to at least the associated terminal contact portion. The insulating housing then has a slot-shaped contact receiving channel which intersects the conductor insertion channels. The plate-shaped flat contact is designed for insertion into this contact receiving channel and for fixing to the insulating housing.

The fact that the conductor insertion channels extend to at least the associated clamping contact portion of the flat contact, a reliable conductor guidance is ensured. The flat contact is then in a contact receiving channel inserted, which cuts the conductor insertion channels. In this way, the flat contact is kept space-saving and safe in a relatively narrow contact-receiving channel and aligned with the conductor insertion channels and the electrical conductors or pins to be inserted therein. The contact receiving channel is usually narrower than the conductor insertion channels. Adjacent to the conductor insertion channels a narrow guide of the flat contact and in particular a guide resiliently movable parts of the Klemmkontaktabschnitte is ensured using the contact receiving channels.

An increase in spring elasticity with the least possible installation space succeeds with a plug connector in which the clamping contact section has a spring arm section and a rigid conductor contact section arranged at a distance from the spring arm section. The spring arm portion has a central root portion (root portion), an adjoining support arm extending opposite to the conductor insertion direction of an electrical conductor to be clamped to the terminal contact portion, a spring arc adjoining the support arm, and a contact arm adjacent to the spring arc, oblique to the conductor insertion direction aligned and movable relative to the support arm. The rigid conductor abutment portion also joins the root portion and extends opposite to the conductor insertion direction. The rigid conductor abutment portion carries on its side facing the spring arm portion side edge a contact projection.

With the help of relatively movable to the support arm contact arm, which adjoins the provided exclusively for this contact arm spring bow and support arm, a curved spring leg is created, which has a relatively large elasticity due to a uniform stress distribution. Thus, it is without significant increase in space requirements compared with only short barb-bearing spring arms or a rigid section protruding spring arms possible to clamp conductors with a larger conductor cross-sectional area.

For the purposes of the present invention, the indefinite article "a" is not understood as a number word. The connector can of course be multi-pole and have several such Federkraftklemmanschlüsse. All that is necessary is that the connector has at least one spring terminal connection. Accordingly, the spring force clamping connection has at least one clamping contact section.

In this case, a further clamping contact section may project from the root section in the opposite direction to the clamping contact section formed by the spring arm section and the rigid conductor contact section. The further clamping contact portion is then formed as a pair of spring-elastic movable spring arms with contact groups facing each other.

It is conceivable that a clamping contact portion of the first pair of opposing Klemmkontaktabschnitten is formed as a spring arm with a subsequent to the root portion support arm, adjoining the support arm spring bow and a subsequent to the spring bow contact arm. Thus, the space required can be reduced or the spring elasticity can be increased.

The support arm can have a tapering in the direction of the root portion to the spring bow section. The contact arm may have a tapering in the direction of the spring bow to the free end clamping portion. By these tapered portions of the support arm and the contact arm succeeds even more even stress distribution, which has a greater spring elasticity result.

If the spring contact portion opposite Klemmkontaktabschnitt is designed as a rigid Leiteranlageabschnitt, then the Federklemmkraft the Federarmabschnitts on the conductor abutment portion opposite side of the inserted electrical conductor or contact pin is transmitted to this and prevented by the rigid conductor portion prevents the electrical conductor or pin yields. For a good clamping force with high surface pressure is effected and the current can be dissipated by the electrical conductor over the rigid conductor plant section. The current paths are optimally shortened via the rigid conductor plant section in comparison to the current path via the spring arm section.

The conductor abutment portion may have at least one protrusion protruding into the conductor insertion channel. Thus, the contact of the voltage applied to the rigid conductor plant section electrical conductor is reduced to this at least one contact tip. This results in low contact resistances as the clamping force of the spring arm section is concentrated on the contact tips.

The Klemmkontaktabschnitte the second pair of opposing Klemmkontaktabschnitten can be designed as spring arms with contact points pointing towards each other. Such a pair of spring arms is particularly suitable for contacting contact pins, but can also be used for the electrically conductive contacting of electrical conductors and in particular of rigid, single-stranded conductors.

A pair of clamping contact portions projecting in a first direction of the flat contact may be wider than the pair of clamping contact portions oriented diametrically opposite the second direction in the second direction. By this reduced in the region of the second pair of Klemmkontaktabschnitten width of the flat contact of the flat contact in the insulating housing is locked to one side by the broadening in the direction of the first Pair of terminal contact sections forms a stop in the insulating housing.

The slot-shaped contact receiving channel may have a step for forming a stopper for latching the flat contact inserted in the contact receiving channel. A portion of the flat contact acts together with the stage of a stop. By elastic short-term deformation of either the insulating material or preferably the flat contact during insertion of the flat contact in the contact receiving channel can be the flat contact past the stage. Subsequently, the insulating material back or the flat contact springs back so that the step of the slot-shaped contact receiving channel with the flat contact together forms a stop which prevents the flat contact from sliding out of the contact receiving channel.

Thus, for example, a rigid conductor abutment section together with the following after the intermediate root area adjoining spring arm, both of which are arranged on one side of the imported electrical conductors or pins and their conductor insertion channels, are used as a latching arm, with the flat contact in the contact receiving channel to form a stop locked.

It is also conceivable that the flat contact is caulked to the insulating housing by deformation of the insulating material after insertion of the flat contact in the slot-like contact receiving channel. For this purpose, the insulating material is deformed into the contact receiving channel, so as to form a stop for securing the flat contact in the insulating material.

Figur 1 -

Seiten-Schnittansicht eines Steckverbinders mit darin eingebautem Flachkontakt;

Figur 2 -

Steckverbinder aus Figur 1 mit eingestecktem und angeklemmtem elektrischen Leiter;

Figur 3 -

Perspektivische Frontansicht des Steckverbinders aus Figuren 1 und 2;

Figur 4 -

Querschnitt-Ansicht eines Ausschnitts des Steckverbinders aus Figuren 2 und 3 in Schnitt B-B;

Figur 5 -

Querschnitt-Ansicht eines Ausschnitts des Steckverbinders aus Figuren 2 und 3 im Schnitt C-C;

Figur 6 -

Seitenansicht des Flachkontaktes des Steckverbinders aus Figuren 1 bis 4;

Figur 7 -

perspektivische Ansicht des Flachkontaktes aus Figur 6;

Figur 8 -

Seitenansicht des Flachkontaktes mit daran angeklemmtem elektrischen Leiter;

Figur 9 -

Seitenansicht des Flachkontaktes mit daran angeklemmtem elektrischen Leiter und weiterem elektrischen Leiter für den gegenüberliegenden Klemmkontakt;

Figur 10 -

perspektivische Ansicht des Flachkontaktes aus Figur 9;

Figur 11 -

Seiten-Schnittansicht des Steckverbinders aus Figur 2 mit zusätzlichem Gegensteckverbinder mit weiterem elektrischen Leiter;

Figur 12 -

Seiten-Schnittansicht eines Steckverbinders mit im Isolierstoffgehäuse verstemmten Flachkontakt und eingesteckten und angeklemmten elektrischen Leiter;

Figur 13 -

Seiten-Schnittansicht eines Steckverbinders mit an einer Stufe des Isolierstoffgehäuses verrasteten Flachkontakt mit daran angeklemmten elektrischen Leiter.

The invention will be explained in more detail with reference to embodiments with the accompanying drawings. Show it:

FIG. 1 -

Side sectional view of a connector with built-flat contact;

FIG. 2 -

Connector off FIG. 1 with plugged in and clamped electrical conductor;

FIG. 3 -

Perspective front view of the connector FIGS. 1 and 2 ;

FIG. 4 -

Cross-section view of a cutout of the connector Figures 2 and 3 in section BB;

FIG. 5 -

Cross-section view of a cutout of the connector Figures 2 and 3 on average CC;

FIG. 6 -

Side view of the flat contact of the connector FIGS. 1 to 4 ;

FIG. 7 -

perspective view of the flat contact FIG. 6 ;

FIG. 8 -

Side view of the flat contact with electrical conductor clamped thereto;

FIG. 9

Side view of the flat contact with electrical conductor connected thereto and further electrical conductor for the opposite terminal contact;

FIG. 10 -

perspective view of the flat contact FIG. 9 ;

FIG. 11

Side sectional view of the connector off FIG. 2 with additional mating connector with further electrical conductor;

FIG. 12 -

Side sectional view of a connector with caulked in the insulating housing flat contact and inserted and clamped electrical conductor;

FIG. 13

Side sectional view of a connector with latched at a stage of the insulating housing flat contact with it clamped electrical conductor.

FIG. 1 shows a longitudinal sectional view of a connector 1 with a one-piece insulating material 2 made of non-conductive plastic material. In the insulating housing 2, a spring terminal connection 3 is used, which is for clamping an electrical conductor from the left side in FIG. 1 and another electrical conductor or contact pin is formed from the opposite right side. The Isolierstoffgehäuse 2 has a first conductor insertion channel 4, which extends from the left-hand outer side into the interior of the insulating housing 2 to a Klemmkontaktabschnitt and beyond. In the illustrated embodiment, the conductor insertion channel 4 has a funnel-shaped tapered towards the interior of the insulating housing 2 section 5. In this way, the opening to the outside part of the conductor insertion channel 4 may be wider than the conductor insertion channel in the region of the Klemmkontaktabschnitts to the wider area Include electrical conductor together with Isolierstoffmantel. The stripped free end of the electrical conductor to be clamped is then inserted into the narrower section of the conductor insertion channel 4.

In a corresponding manner, the second conductor insertion channel 6, the on The right, opposite end-side outer side of the insulating housing 2 is located and there opens out of the insulating housing 2, a funnel-shaped tapered section 7. Also, this conductor insertion channel 6 extends so far into the interior of the insulating 2, that he up to the terminal contact portion for a in this Conductor insertion channel 6 inserted electrical conductor or contact pin protrudes and even extends beyond.

It is clear that the insulating housing 2 further has a contact receiving channel 8 which is open towards the left end side and which intersects the conductor insertion channel 4 over its entire length. The contact receiving channel 8 extends at least to the narrowing end of the flat contact 3 and also cuts there the second conductor insertion channel 6 at least over the partial length of the flat contact third

The slot-like contact receiving channel 8 is adapted from its width (in the viewing direction) to the width of the plate-shaped flat contact 3 in order to keep it on both sides. The flat contact 3 is located with its upper and lower end edges on the contact receiving channel 8 bounding inner wall of the insulating housing 2 over a portion of these front side edges.

The flat contact 3 has a root portion 9 extending transversely to the conductor insertion direction L indicated by an arrow. The conductor insertion direction L is the direction in which an electrical conductor is inserted into the first conductor insertion channel 4 and in the opposite direction, respectively, into the second conductor insertion channel 6. The conductor insertion direction L is set by the extension direction of the conductor insertion channels 4 and 6.

From this root portion 9 extends in each case a pair of opposed clamping contact portions 10a, 10b, each for clamping one electrical conductor or a contact pin are formed. The left pair of terminal contact portions 10a is formed of a rigid conductor abutment portion 11 and a spring arm portion 12 opposed to this conductor abutment portion 11. The spring arm portion 12 has a subsequent to the root portion 9 support arm 13 which extends opposite to the conductor insertion direction L. Here, in the extension direction of the support arm 13, the main extension direction understood, regardless of whether the support arm 13 is aligned exactly parallel or at a slight angle to the Leiterereinsteckrichtung L. In any case, the support arm 13 does not extend transversely or diagonally to the conductor insertion direction L. At the support arms 13, a spring bow 14 connects. This spring bow 14, just like the support arm 13, is provided only for one spring arm section 12 in order to provide a spring force for a contact arm 15 adjoining the spring bow 14. The contact arm 15 extends diagonally to the conductor insertion direction L into the first conductor insertion channel 4. With this relatively long contact arm 15 and the adjoining spring bow 14, a clamping spring is provided in which a relatively large spring elasticity and a uniform stress distribution is ensured. The clamping force of the contact arm 15 is aligned with the opposite rigid conductor abutment portion 11, on which rests an electrical conductor to be clamped. For the reduction of the contact area between the clamped electrical conductor and the conductor abutment portion 11, at least one contact tip 16 protrudes from the end edge edge of the conductor abutment portion 11 facing the spring arm portion 12. Thus, the force exerted on the spring arm 12 on a clamped electrical conductor clamping force is concentrated on the contact tips 16 and increases in this way the surface pressure and reduces the contact resistance.

At the root portion 9 further adjoins an overload stop 17, which faces in the direction of the spring bow 14 and is disposed between the free end of the contact arm 15 and the support arm 13. This will be the possible deflection of the contact arm 15 in the direction of the support arm 13 is limited by the stop on the overload arm 17. The overload arm 17, together with the ladder contact section 11, also forms a funnel-shaped conductor insertion section on the clamping contact section 10a for a secure and accurate position and accommodation of an electrical conductor inserted in the conductor insertion channel 4.

From the root region 9, a second pair of clamping contact sections 10b projects in the direction of the end opening of the second conductor insertion channel 6. This pair of clamp contact portions 10b is made narrower than the first pair of clamp contact portions 10a. When inserting the flat contact 3 in the contact receiving channel 8, which tapers accordingly, a stop for the flat contact 3 is thus formed by this taper and adapted thereto bevel 18 in the interior of the insulating housing 2 and this set in the direction of the second conductor insertion channel 6 in the insulating 2 ,

The second pair of Klemmkontaktabschnitten 10b has two opposing spring arms 19a, 19b, each bearing at the free end portion facing each other Kontaktkuppen These spring arms 19a, 19b are brought together in the common root portion 9, by which the spring force is provided for Klemmkontaktierung a lying between the contact tips 20 electrical conductor or contact pin. On the side of the second conductor insertion channel 6, the electrical conductor or contact pin to be clamped there can be held in a mating connector (not shown). For latching such a mating connector, the insulating housing 2 has a projecting in the direction of the mouth of the second conductor insertion channel 6 latching arm 21 with a latch 22nd

FIG. 2 leaves a longitudinal sectional view of the connector 1 from FIG. 1 recognize with an inserted and clamped on the left side electrical conductor 23. It is clear that the electrical conductor 23 with its Isolierstoffmantel 24 is introduced to the funnel-shaped taper 5 in the left conductor insertion channel 4. The stripped end 25 of the electrical conductor, however, is guided to the root portion 9 and adjoins this optionally spaced by a gap. As a result, the contact arm 15 is deflected in the direction of the support arm 13 and it is a spring force exerted by means of the spring bow 14 on the clamped electrical conductor 23. The stripped end 25 of the electrical conductor 23 is pressed by means of Federarmabschnitts 12 on the contact tips 16 of the rigid conductor contact portion 11, so that a Stromübertragungsweg with low contact resistance between the stripped end 25 of the electrical conductor 23 and the rigid conductor contact section is ensured.

The width of this rigid conductor contact section 11 is greater than the width of the support arm 13 with the spring bow 14 and contact arm 15 connected thereto. Via the rigid conductor contact section 11, a relatively large power line cross-section is provided by the width provided.

The section line B-B intersects the insulating material housing 2 in the area of the contact-receiving channel before a flat contact is inserted.

The section line CC intersects the Isolierstoffgehäuse 2 in the region of the flat contact and the stripped end 25 of the inserted electrical conductor 23. For the section BB is on FIG. 4 and for the cut CC on FIG. 5 directed.

FIG. 3 leaves a perspective view of the connector 1 from FIGS. 1 and 2 detect. It is clear that the insulating housing 2 has a plurality of juxtaposed contact receiving channels 8, each with a flat contact 3 inserted therein. The contact receiving channels 8 are at least in the immediately adjacent to the conductor insertion channels 4 area slit-like designed with a width corresponding to the width of the plate-shaped Flat contact 3 is adjusted. It is clear that the flat contacts 3 each span a plane and the slot-shaped contact receiving channels 8 are adapted to this plane so that the plate-shaped flat contacts 3 are fixed on both sides in the slot-shaped contact receiving channel 8.

It can also be seen that the conductor insertion channels 4 have a larger diameter than the width of the contact receiving channel 8 which intersects these conductor insertion channels 4 in the areas adjoining the conductor insertion channel 4 even in the tapered region behind the funnel-shaped section 5. The contact receiving channels 8 can, as outlined in some areas have common sections. These widened portions are used to prevent accumulation of material in Isolierstoffgehäuse 2. The contact receiving channels 8 can be as shown open or closed by a non-sketched cover.

FIG. 4 leaves a cross-sectional view of the connector 1 from FIG. 2 in section BB with an inserted and clamped electrical conductor 23 at a terminal point and a free conductor insertion channel 4 recognize. It is clear that the contact receiving channels 8 cut the conductor insertion channels 4 and at least in the areas immediately adjacent to the conductor insertion channels 4 areas are designed like a slit. There, the width of the contact receiving channels 8 is adapted to the width of the flat contacts 3 inserted therein, so that the flat contacts 3 are held laterally on both sides of the insulating housing 2 in the contact receiving channel 8.

FIG. 5 leaves a cross-sectional view of the connector 1 from FIG. 2 on average CC recognize. This section passes through the stripped end 25 of an inserted electrical conductor 23 and comprises a section through the support arm 13 and the contact arm 15 protruding therefrom in the direction of the conductor insertion channel 4. Here it is once again clear that the plate-like Flat contact 3 is inserted in each case in a slot-like contact receiving channel 8 and fixed in position there on both sides. The relatively narrow flat contact 3 in each case biases a plane which lies parallel to the plane of the slot-like contact receiving channel 8. The resilient contact arm 15 is movable in this plane in the direction of the conductor insertion channel 4. The support arm 13 rests with its upper narrow end side edge on the narrow inner wall of the contact receiving channel 8 at least in sections and is thus supported there.

FIG. 6 lets recognize a side view of the shape in a plane spanning plate-shaped flat contact 3 formed spring terminal connection. The flat contact 3 can be punched out of a sheet metal part, for example. It is clear that the rigid conductor abutment section protrudes from the root section 9 in a first alignment in the lower region in one direction and a spring arm 19b in the diametrically opposite direction.

Opposite to the spring arm 19b another spring arm 19a is arranged, which extends approximately parallel to the lower spring arm 19b, so that the two spring arms 19a, 19b together form a kind of tulip contact or fork contact. The two spring arms 19a, 19b are brought together in the root section 9, with the spring arms 19a, 19b initially tapering from the root section 9.

Opposite of the rigid conductor abutment portion 11 of the spring arm 12 is arranged at a distance thereof. The spring arm 12 is formed from a projecting from the root portion 9 support arm 13, an adjoining spring bow and a subsequent to the spring bow 14 contact arm 15 which forms the free end of the Federarmabschnitts 12. The contact arm 15 in the illustrated embodiment has a length that is greater than the gap between the rigid conductor abutment portion 11 and the support arm 13. The contact arm 15 is in acute angle extending diagonally to the rigid conductor abutment portion 11 in the direction of the root portion 9 aligned.

It is also clear that the support arm 13, starting from the root portion 9 in the direction of the spring bow 14 is tapered conically. Also, the contact arm 15 tapers from the spring bow 14 in the direction of the free end of the contact arm 15. This achieves a uniform stress distribution and provides an improved greater elasticity of the spring arm section 12.

FIG. 7 leaves a perspective view of the flat contact 3 from FIG. 6 detect. It is clear that the flat contact 3 is plate-shaped with a substantially smaller width than length and height. The material thickness of the flat contact 3 is approximately in the range of 1 mm to 5 mm and preferably in the range of about 2 mm +/- 1 mm.

From this representation it is again clear that the overload stop 17 protrudes into the space between the support arm 13 and the contact arm 15. In a deflection of the contact arm 15 in the direction of the support arm 13, this hits with its free end on the overload stop 17, so that a further deflection and thus a contiguous risk of plastic deformation is prevented.

FIG. 8 leaves a side view of the flat contact 3 FIGS. 6 and 7 Detect with it clamped electrical conductor 23. Here it is again clear that the electrical conductor 23 rests with its stripped end 25 only on the contact caps 16 of the rigid conductor abutment portion 11. The force exerted by the spring arm section 2 on the electrical conductor 23 clamping force is thus concentrated on the contact tips 16. The rigid conductor abutment portion 11 has a sufficient width and such a transition to the root portion 9, so that it does not yield resiliently or bends when the Clamping force is exerted by the spring arm 12 on the electrical conductor 23.

It can also be seen that the contact arm 15 with its sharp-edged free end rests on the stripped end 25 of the electrical conductor 23 and possibly digs into this end 25. Upon exerting a tensile force on the electrical conductor 23, the stripped end 25 hooks on the contact arm 15, so that the electrical conductor 23 is secured to the flat contact 3.

Clamping and removal of the electrical conductor 23 from the flat contact 3 can be achieved when the clamping contact is canceled by the contact arm 15 with an operating tool. For this purpose, a relative to the insulating 2 movable actuator can optionally be installed in the insulating 2. It is also conceivable that an operating tool is introduced, for example in the form of a screwdriver in the contact receiving channel 8. This can do this as in the FIGS. 3 to 5 outlined, have a leading to the contact arm 15 leading area.

FIG. 9 allows a side view of the flat contact 3 with a clamped to the spring arm 12 electrical conductor 23 and an opposite second electrical conductor 26 recognize. This second electrical conductor 26 may also be designed as a contact pin. It is envisaged to clamp the second electrical conductor 26 or contact pin in the contact tulip formed by the two opposite spring arms 19a, 19b.

This is going out FIG. 10 more clearly, the perspective view of the flat contact 3 from FIG. 9 with the two electrical conductors 23, 26 shows. It is clear that the electrical conductors 23, 24 are inserted in opposite directions in the flat contact 3. For each of these electrical conductors 23, 26 are each a pair of opposing contact portions intended. On the left side, the pair of terminal contact portions are formed of the spring arm portion 12 and the rigid conductor abutting portion 11.

On the diametrically opposite side of the pair of terminal contact portions of the two opposing spring arms 19a, 19b is formed.

From all the illustrations it is clear that the flat contact 3 with its terminal contact portions, i. the spring arms 19a, 19b, the rigid conductor abutment portion 11 and the spring arm portion 12 are arranged with the support arm 13, the spring bow 14 and the contact arm 15 on a common plane and the thickness of the flat contact 3 at this level, i. the extent of the flat contact 3 is perpendicular to this plane is relatively low.

FIG. 11 leaves a longitudinal sectional view through the connector 1 FIG. 2 recognize with additional mating connector 27. The mating connector 27 has an insulating housing 28 with a plug-in opening 29 at the free end-side mating end. The contour of this plug-in opening 29 is adapted to the contour of the insulating housing 2 of the connector 1 to insert the free end of the plug insulating housing 2 in the insertion opening 9. In the plug-in opening 29 protrudes the stripped free end 25 of the second electrical conductor 26 to be clamped in, which is guided over part of its length in a conductor receiving opening 30. When attaching the mating connector 27 to the connector 1, the projecting into the insertion opening 29 free stripped end 25 is guided into the conductor insertion opening 6 of the connector 1 to be clamped there to the contact tips 20 of the spring arms 19a, 19b.

In order to lock the mating connector 27 to the connector 1, a latching tab 31 is provided on the insulating housing 28, which defines a latching opening 32. The locking tab 21 of the connector 1 is in this Latch opening 32 and guided in with the aid of the latching lug 22 and the latching tab 31 latched to form a stop.

For fixing the electrical conductor 26 or contact pin to the insulating housing 28 of the mating connector 27 may optionally be provided that the electrical conductor 26 is caulked to the insulating housing 28. For this purpose, tool receiving openings 33a, 33b lying opposite one another and lying in alignment are present, which lead to the stripped end of the inserted electrical conductor 26. By inserting a tool into one or both of these tool receiving apertures 33a, 33b, the electrical conductor 26 can be deformed to prevent the electrical conductor 26 from being pulled out of the insulating housing 28 in this way.

FIG. 12 lets recognize a longitudinal sectional view through a slightly modified connector 1. For the embodiment of the flat contact 3 and the insulating housing 2 with the slot-like contact receiving channel 8, reference may be made to the preceding embodiments. The flat contact 3 is caulked in the insulating housing 2 after insertion into the front open contact receiving channel 8. For this purpose, the insulating housing 2 is deformed at least one point to form a locking projection 34. Thus, a sliding out of the flat contact 2 from the slot-like contact receiving channel 8 is prevented. On the obliquely opposite side of the ramp 18 is provided, which secures the flat contact 3 in this direction on the insulating 2.

FIG. 13 lets recognize an embodiment of the connector 1. Here, too, reference may be made essentially to the preceding embodiments for the formation of the insulating housing 2 and the flat contact 3.

In contrast to the previous embodiments, the flat contact 3 secured in the insulating housing 2 by means of a step 35. This stage 35 forms a stop for the inserted into the contact receiving channel 8 flat contact 3, which is secured with the front end of the rigid conductor abutment portion 11 by the step 35 against pushing out against the Leiterereinsteckrichtung L.

In order to guide the flat contact 3 past the step 35 during the insertion process, the insulating housing 2 can be elastically deformed. It is also conceivable, however, that the rigid conductor abutment section 11 has an indentation 36 opposite the contact studs 16. This indentation 36 may extend approximately to the root section 9. Thus, the flat contact 3 without deformation of the insulating housing 2 are pushed so far into the contact receiving channel 8 due to the reduced width by the indentation 36 that in the last step, only the free end of the rigid conductor abutment section 11 taking advantage of the spring elasticity of the opposite in the spring bow 14 passing end of the support arm 13 is guided past the step 35.

This can be supported by a bevel 37 directed towards the outside of the insulating housing 2.

Claims (13)

A connector (1) having an insulating housing (2) and a spring force clamping terminal (3) in the insulating housing (2) for clamping an electrical conductor (23, 26), the spring terminal connection (3) acting as a plane-spanning plate-shaped flat contact having a root portion (9) of which are respectively formed in two diametrically opposite directions a pair of opposed clamping contact portions (10a, 10b) for clamping respectively one electrical conductor (23, 26) or contact pin between a pair of such clamping contact portions (10a, 10b); and wherein the insulating housing (2) has mutually opposite conductor insertion channels (4, 6) for insertion of the electrical conductors (23, 26) or contact pins to be clamped, characterized in that the conductor insertion channels (4, 6) of the insulating housing (2) from the outside extend at least to the associated terminal contact portion (10a, 10b) in that the insulating material housing (2) has a slot-shaped contact receiving channel (8) intersecting the conductor insertion channels (4, 6) and the plate-shaped flat contact is designed for insertion into the contact receiving channel (8) and for fixing to the insulating housing (2). Connector (1) according to claim 1, characterized in that a Klemmkontaktabschnitt (10a) of the first pair of opposing Klemmkontaktabschnitten (10a, 10b) as Federarmabschnitt (12) with a to the root portion (9) adjoining support arm (13), a on the support arm (13) subsequent spring bow (14) and a contact arm (15) adjoining the spring bow (14) is formed. Connector (1) according to claim 2, characterized in that the support arm (13) has a tapering in the direction of the root portion (9) to the spring bow (14) portion (7) and that the contact arm (15) extends in a direction from the spring bow (14) to the free end tapered clamping portion (7). Connector (1) according to claim 2 or 3, characterized in that the spring arm portion (12) opposite the clamping contact portion (10a) as a rigid conductor contact portion (11) is formed. Connector (1) according to claim 4, characterized in that the conductor abutment portion (11) has at least one projecting and in the conductor insertion channel (4) projecting into contact tip (16). Connector (1) according to any one of the preceding claims, characterized in that the Klemmkontaktabschnitte (10b) of the second pair of opposing Klemmkontaktabschnitten (10a, 10b) as spring arms (19a, 19b) with mutually facing contact blades (20) are formed. Connector (1) according to one of the preceding claims, characterized in that in a first direction of the flat contact (3) projecting pair of Klemmkontaktabschnitten (10a) wider than the in the second, diametrically opposite to the first direction opposite direction projecting pair of Klemmkontaktabschnitten (10b ). Connector (1) according to one of the preceding claims, characterized in that the slot-shaped contact receiving channel (8) has a Stage (35) for forming a stop for the latching of the introduced into the contact receiving channel (8) flat contact (3). Connector (1) according to one of the preceding claims, characterized in that the flat contact (3) is caulked to the insulating housing (2) by deformation of the insulating housing (2). Connector (1) according to one of the preceding claims, characterized in that a connector (1) has a plurality of conductor insertion channels (4, 6) each having a conductor insertion channel intersecting and a flat contact receiving contact receiving channel (8). A connector (1) having an insulating housing (2) and a spring terminal connection (3) in the insulating housing (2) for clamping an electrical conductor (23), wherein the spring terminal connection (3) as a plane spanning, plate-shaped flat contact (3) with a Root portion (9) from which a Klemmkontaktabschnitt (10 a) for clamping an electrical conductor (23) protrudes, is formed, characterized in that the Klemmkontaktabschnitt (10 a) a Federarmabschnitt (12) and a spaced from the Federarmabschnitt (12) arranged rigid Conductor abutment portion (11), wherein the Federarmabschnitt (12) adjoining the root portion (9) and opposite to the Leiterereinsteckrichtung (L) of an on the Klemmkontaktabschnitt (10a) to be clamped electrical conductor (23) extending support arm (13), a to the support arm (13) subsequent spring bow (14) and one of the spring bow (14) adjoining, obliquely to Conductor insertion direction (L) aligned and relative to the support arm (13) movable contact arm (15), and wherein the rigid conductor abutment portion (11) adjoins the root portion (9) and extending opposite to the Leitereinsteckrichtung (L). Connector (1) according to claim 11, characterized in that a further clamping contact portion (10b) protrudes in opposite direction to the clamping contact portion (10b) formed by the spring arm portion (12) and rigid conductor abutment portion (11) from the root portion (9) further clamping contact portion (10b) has a pair of spring-elastic movable spring arms (19a, 19b) with contact points (16, 20) facing each other. Connector (1) according to claim 11 or 12, characterized in that the rigid conductor abutment portion (11) on its the spring arm portion (12) facing side edge carries a contact tip (16).

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