DE202021102233U1 - Connector with clamping means - Google Patents

Abstract

Connector (10)
- With a contact carrier (11) which can be pushed in the plug-in direction (X) onto a plug-in counterpart, such as a printed circuit board or contact blade,
- With a plug-in receptacle (21) which is formed at the front in the plug-in direction (X) and is formed by two opposing contact carrier walls (22),
- With a plug-in gap (23) within the plug-in receptacle (21), the width (W) of which is adapted to a plug-in counterpart to be received,
- With a plug-in receptacle base (26) which is arranged opposite a plug-in opening (27) of the plug-in receptacle (21),
- With juxtaposed plug contacts (12) which are held by the contact carrier (11) and sit in the plug receptacle (21), characterized in that
- In addition to the contacts, the contact carrier (11) carries at least one clamping means (30) which can interact with the mating connector in a frictional manner and which reduces the freedom of movement of the connector (10) transversely to the insertion direction (X),
- The clamping means (30) forms a clamping gap (31), the width (M) of which is smaller than the width of the plug-in gap (W),
- The plug-in gap (23) and the clamping gap (31) have at least one common gap plane.

Description

• - mit einem Kontaktträger, welcher in Steckrichtung auf ein Steckgegenstück, wie Leiterplatte oder Kontaktmesser, aufschiebbar ist,
• - mit einer in Steckrichtung vorne ausgebildeten Steckaufnahme, die von zwei einander gegenüberliegenden Kontaktträgerwänden gebildet ist,
• - mit einem Steckspalt innerhalb der Steckaufnahme, dessen Weite an ein aufzunehmendes Steckgegenstück angepasst ist,
• - mit einem Steckaufnahmeboden, der einer Stecköffnung der Steckaufnahme gegenüberliegend angeordnet ist,
• - mit nebeneinander angeordneten Steckkontakten, die vom Kontaktträger gehalten sind und in der Steckaufnahme einsitzen.

The invention relates to a connector

• - with a contact carrier, which can be pushed in the plugging direction onto a plug-in counterpart, such as a printed circuit board or contact blade,
• - With a plug-in receptacle formed at the front in the plug-in direction, which is formed by two opposing contact carrier walls,
• - with a plug-in gap within the plug-in receptacle, the width of which is adapted to a plug-in counterpart to be accommodated,
• - With a plug-in receptacle base which is arranged opposite a plug-in opening of the plug-in receptacle,
• - With juxtaposed plug contacts that are held by the contact carrier and sit in the plug receptacle.

Connectors are well known from the prior art. They are used to establish electrical connections between components. In the production of electronic components, connectors are used in particular that are plugged directly onto the plug-in zones of a circuit board, such as the applicant's own DE 20 2012 002 501 U1 is shown and described. Alternatively, there is the possibility of arranging a so-called pen tray on the circuit board. This is a contact carrier mounted on the printed circuit board, the contacts of which, in particular flat blade contacts, are connected directly to the printed circuit board.

Generic connectors can be found in many fields of application, from household appliances to use in automotive technology to devices for science and research. If the plug-in connectors are designed as direct plug-in connectors, they usually hold frictionally on the circuit board, the frictional connection here being produced by the contact forces between the contact surfaces of the circuit board and the plug-in contacts of the plug-in connector.

Direct connectors are known from the prior art, which cannot be documented in printed form, which are provided with locking hooks that engage in locking contours of the circuit board so that, in addition to the frictional engagement caused by the plug contacts, a positive hold of the connector on the circuit board is ensured. Such connectors are used in particular when the component carrying the connector is subject to vibration movements and the vibrations can lead to the connector becoming detached from its counterpart, in particular the printed circuit board.

In special areas of application, for example in automotive engineering, the stated prior art is not always suitable for meeting the requirements there. Connectors with positive fastening on the circuit board require a larger installation space due to the additional holding means, and the circuit board must also be provided with a corresponding holding contour. This is not only disadvantageous from a cost point of view, but also has limits from a certain degree of miniaturization, since the latching structures and the holding contours on the circuit board side must have certain minimum dimensions in terms of manufacturing technology.

In addition, extreme acceleration forces and high vibration frequencies act on the connector and the circuit board, not only in the automotive industry, so that especially with direct connectors that are plugged directly onto the contact zone of the circuit board, fretting corrosion occurs on the contact surfaces, which destroys the contact surfaces and the electrical conductivity cancels, so that the connected electronic component shows malfunctions or even fails.

The object of the invention is therefore to create a connector, in particular a direct connector, which reliably withstands high acceleration forces and high vibration frequencies.

• - der Kontaktträger zusätzlich zu den Kontakten wenigstens ein Klemmmittel trägt, welches reibschlüssig mit dem Steckgegenstück interagieren kann und einen Bewegungsspielraum des Steckverbinders quer zur Steckrichtung mindert,
• - das Klemmmittel einen Klemmspalt bildet, dessen Weite geringer ist als die Weite des Steckspaltes,
• - der Steckspalt und der Klemmspalt wenigstens eine gemeinsame Spaltebene aufweisen.

The invention is achieved by a connector with the features of claim 1, in particular with its characterizing features, according to which

• - In addition to the contacts, the contact carrier carries at least one clamping means which can interact with the mating connector in a frictional manner and which reduces the freedom of movement of the connector transversely to the direction of insertion,
• - the clamping means forms a clamping gap, the width of which is smaller than the width of the plug-in gap,
• - The plug-in gap and the clamping gap have at least one common gap plane.

The connector according to the invention deliberately dispenses with positive fastening on the circuit board in order to meet all miniaturization requirements and to be as independent as possible of the dimensions of the circuit boards manufactured with comparatively low precision.

The invention has recognized that frictional fastening of the connector on the printed circuit board has considerable advantages in terms of production technology and assembly technology. Was it in the state of the Technology usually so that the hold of the connector on its mating connector stemmed basically from the required pressure forces of the plug contacts, the clamping means according to the invention now allow for the first time to dimension the holding forces, i.e. the frictional connection between the clamping means and mating connector, solely with regard to the fastening requirements . According to the present invention, the plug connector is thus determined by the contact pressure forces optimized for the electrical transition and by the holding forces of the clamping means optimized for the holder on the mating connector.

In addition, the contact zone of a plug connector, which is defined by the contact tips of the plug-in contacts, is usually comparatively far forward in the plug-in receptacle, that is to say close to the plug-in opening. In this way, sufficient coverage of the contact fields on the mating connector side and the plug contacts of the connector is ensured. In the prior art, however, this automatically means that the fastening zone, that is to say the zone in which the frictional forces holding the plug contact on the plug counterpart act, coincide with the contact zone and is also arranged close to the plug opening. The clamping means according to the invention, on the other hand, make it possible to optimize the position of the holding zones and, for example, to place them deeper in the plug-in receptacle, in particular near the bottom of the plug-in receptacle. The holding zones are then close to the edge of the circuit board. In this way, any vibration behavior of the connector can be influenced particularly favorably.

It is provided that the plug-in gap and the clamping gap have a common gap center plane, that is to say are aligned with one another.

A particularly preferred embodiment provides that the clamping means is formed by a pair of clamping arms made up of two opposing clamping arms, which form the clamping gap between them, in particular when the clamping arms are arranged in the plug-in receptacle.

The clamping arms have the essential advantage that they can be deflected from a neutral position. With regard to the thickness tolerances of printed circuit boards, which are considerable in comparison to the plug-in gap, a possibly problematic plastic deformation, which in any case requires assembly force, can be dispensed with. If the clamping arms are also spring-resilient, this not only ensures that the minimum frictional connection between the connector and the printed circuit board or mating connector is guaranteed. It is also ensured that after the connector and the mating connector are separated, for example when replacing a printed circuit board, the minimum contact pressure for producing the necessary frictional engagement can be restored by the clamping arms.

It is provided that the clamping arms are resiliently deflectable. This has the essential advantage that the clamping arms are protected and securely arranged and cannot be damaged during the assembly of the connector or its assembly. These clamping means, which are arranged in the plug-in receptacle within the connector contact carrier, cannot cause any problems in the connector assembly, for example by the hooking of two contact carriers moved next to one another by the automatic assembly machines.

Spring-return elastic clamping arms can be achieved particularly easily in that the clamping arms have a connected end and a free end opposite the connected end and thus the inherent elasticity of the material can act freely. This is particularly advantageous because it is intended that the clamping means are formed from the contact carrier material itself, that is to say, as a rule, from plastic material.

In order to ensure sufficient free mobility of the clamping arm, it is provided that the contact carrier forms at least one clamping arm chamber in which a clamping arm is seated, with each contact carrier wall in particular having a clamping arm chamber, the clamping arm chambers being spaced apart from one another by the clamping gap and a clamping arm in each clamping arm chamber Clamping arm pair is arranged.

Depending on the requirement, it is possible that at least one clamping arm is connected close to the plug-in opening and extends with its free end against the insertion direction or that at least one clamping arm is connected near the socket base and its free end extends in the plug-in direction, a preferred embodiment even providing that a clamping arm connected close to the plug-in opening and a clamping arm connected close to the plug-in receiving base are opposite one another, whereby two fastening zones can be implemented on the plug-in counterpart, which in turn has a stabilizing effect on the connector arrangement.

• - in einer ersten Klemmarmkammer ein steckaufnahmebodennah angebundener Klemmarm des ersten Klemmarmpaares angeordnet ist und in der ersten Klemmarmkammer ein stecköffnungsnah angebundener Klemmarm des zweiten Klemmarmpaares angeordnet ist und wobei die freien Enden beider Klemmarme einander zugewandt sind,
• - in einer zweiten Klemmarmkammer ebenfalls ein steckaufnahmebodennah angebundener Klemmarm des ersten Klemmarmpaares angeordnet ist und in der zweiten Klemmarmkammer ein stecköffnungsnah angebundener Klemmarm des zweiten

Klemmarmpaares angeordnet ist und wobei die freien Enden beider Klemmarme einander zugewandt sind.In a specific embodiment it is provided that there are two pairs of clamping arms arranged one behind the other in the plug-in direction and each clamping arm of a pair of clamping arms is arranged in a clamping arm chamber, with

• - In a first clamping arm chamber, a clamping arm of the first pair of clamping arms, which is connected near the bottom of the socket, is arranged and in the first clamping arm chamber, a clamping arm of the second pair of clamping arms that is connected close to the plug-in opening is arranged, and the free ends of both clamping arms face one another,
• - In a second clamping arm chamber, a clamping arm of the first pair of clamping arms, which is connected close to the plug-in receiving base, is also arranged, and in the second clamping arm chamber, a clamping arm of the second which is connected close to the plug-in opening is arranged

Is arranged clamping arm pair and wherein the free ends of both clamping arms face each other.

Alternatively, however, an embodiment is also conceivable in which the clamping means are designed as clamping ribs which are carried by insulating webs which spaced adjacent plug contacts from one another.

• 1 ein erfindungsgemäßer Steckverbinder erster Ausführungsform in Explosionsdarstellung,
• 2 der Steckverbinder gemäß 1 in Seitenansicht,
• 3 der Steckverbinder gemäß 1 in Ansicht auf die Stecköffnung,
• 4 der Steckverbinder gemäß 1 entsprechend Schnittlinie IV-IV in 2,
• 5 ein erfindungsgemäßer Steckverbinder in zweiter Ausführungsform als Explosionsansicht,
• 6 der Steckverbinder gemäß 5 in Seitenansicht,
• 7 der Steckverbinder gemäß 5 in Ansicht auf die Stecköffnung,
• 8 eine Schnittdarstellung des Steckverbinders nach 5 entsprechend Schnittlinie VIII-VIII in 6,
• 9 eine dritte Ausführungsform des erfindungsgemäßen Steckverbinders in Explosionsansicht,
• 10 eine Seitenansicht des Steckverbinders nach 9,
• 11 eine Ansicht auf die Stecköffnung des Steckverbinders nach 10,
• 12 eine Schnittdarstellung gemäß Schnittlinie XII-XII in 10.

Further advantages of the invention and a better understanding of the same result from the following description of exemplary embodiments. Show it:

• 1 a connector according to the invention of the first embodiment in an exploded view,
• 2 the connector according to 1 in side view,
• 3 the connector according to 1 in view of the plug-in opening,
• 4th the connector according to 1 according to section line IV-IV in 2 ,
• 5 a connector according to the invention in a second embodiment as an exploded view,
• 6th the connector according to 5 in side view,
• 7th the connector according to 5 in view of the plug-in opening,
• 8th a sectional view of the connector according to 5 according to section line VIII-VIII in 6th ,
• 9 a third embodiment of the connector according to the invention in an exploded view,
• 10 a side view of the connector according to 9 ,
• 11 a view of the plug opening of the connector 10 ,
• 12th a sectional view according to section line XII-XII in 10 .

In the figures, a connector according to the invention is identified as a whole with the reference number 10 provided and shown in three different embodiments. The 1 to 4th show a connector according to the invention 10 in first embodiment that 5 to 8th show a second embodiment of the connector according to the invention; 9 to 12th show a third embodiment of the connector 10 according to this invention.

As far as identical or equivalent components can be found in the different embodiments, these are provided with identical reference numbers.

In all embodiments, the connector initially comprises a contact carrier 11 , which can be formed in one piece, but in the exemplary embodiments from a contact carrier base 11 A and a contact carrier cover 11 B is composed, with between the contact carrier base 11 A and the contact carrier cover 11B Plug contacts 12th in the contact carrier 11 are mounted.

The plug-in contacts are available for this purpose 12th each with a clamping section 13th , the one in the mating direction X two opposing contact legs 14th arise from. The mating direction X in the opposite direction arise from the plug contact 12th Conductor connection sections 15th , which are designed as insulation displacement contacts in the present embodiment.

The opposing contact legs 14th of each plug contact 12th form a contact gap between them 16 , which is used to accommodate a mating contact, not shown, of a plug-in counterpart, also not shown. The mating contact can be, for example, contact fields or conductor tracks of a printed circuit board designed as a plug-in counterpart. It is also known to provide contact blades as plug-in counterparts that form contact surfaces. A secure support on the contact surfaces of the mating connector is guaranteed by the contact legs 14th trained contact tips 17th pointing to each other.

The individual plug contacts 12th are in the contact carrier 11 arranged side by side and aligned in such a way that your individual contact gaps 16 aligned with each other form a common receiving gap for a circuit board or contact pins.

The exploded views of the individual embodiments - 1 , 5 and 9 - show contacts 18th in the contact carrier cover 11B , which are also arranged in a row next to each other and in which the plug contacts 12th in the mating direction X be pushed in.

Right and left between the side cheeks 19th of the contact carrier cover 11 B and the external contact 18th the row of contacts is a clamping arm chamber 20th educated. This can be achieved by appropriate design of the contact carrier base 11A extend into the same, which, however, is not realized in the present exemplary embodiments.

The 2 , 6th and 10 show the connector 10 the respective embodiment in the assembled state. For this purpose, the plug contacts are first used 12th in the contacts 18th of the respective contact carrier cover 11 B pushed in, whereupon the contact carrier base 11A to the contact carrier cover 11B is attached so that the individual plug contacts 12th between the contact carrier base 11A and the contact carrier cover 11 B are clamped.

The 3 , 7th and 11 the three embodiments of the invention show an insight into the plug receptacle 21 of the respective connector 10 , i.e. on the front face of the respective contact carrier which is at the front in the plug-in direction 11 - Direction of view opposite to the plug-in direction - with the plug-in receptacle 21 from the respective contact carrier cover 11 B is trained. The plug-in receptacle 21 is a material retention between two opposing contact carrier walls 22nd and the side cheeks 19th . The plug-in receptacle 21 forms a slot 23 which is used to accommodate a plug-in counterpart (not shown) such as a circuit board or contact blade. The slot width W. is adapted to the strength of the plug-in counterpart, for example the maximum printed circuit board thickness, so that the plug-in counterpart can dip into the connector or the connector can be pushed onto the plug-in counterpart. The distance between opposing contact tips 17th of a respective plug contact 12th defined contact gap width K Compared to the strength of the plug-in counterpart, it is manufactured to be significantly undersized in order to ensure reliable contact with the contact tips 17th to ensure on the contact surfaces of the mating connector. The contact gap width K is therefore significantly smaller than the slot width W. .

As the 3 , 7th and 11 show that each contact leg is seated 14th in a thigh niche 24 and is in this transverse to the longitudinal extension of the slot, that is to say in particular outwards into the respective leg niche 24 can be displaced in a spring-return elastic manner, so that the plug-in counterpart can be inserted into the plug-in gap 23 with deflection of the contact legs 14th is possible. Between adjacent contact legs 14th the respective plug contacts 12th are insulating bars 25th formed which the contact legs 14th safely spaced from each other.

A concept that is essential to the invention in each embodiment of the invention is clamping means 30th that have a clamping gap 31 form, its gap width M. is less than the width W. of the plug-in gap 23 .

The slot 23 and the clamping gap 31 as well as the contact gap 16 have at least one common - not further designated - cleavage plane. They can therefore be arranged offset from one another, taking into account at least one common gap plane.

As a rule, however, it is useful and particularly preferred according to this invention that the plug-in gap 23 , the contact gap 16 as well as the clamping gap 31 have a common gap center plane, but are in each case aligned with one another. When inserting the plug-in counterpart into the plug-in gap 23 , this also dips into the clamping gap 31 and displaces the clamping means 30th from their rest position. The resulting frictional engagement between the clamping means 30th and the plug-in counterpart holds the latter securely and in a stable position.

The 4th for the first embodiment, a sectional view according to section line IV-IV in 2 shows a first type of clamping means 30th . These are initially held by a first pair of clamping arms 34 with a first clamp arm 32 and a second clamp arm 33 formed, each clamp arm 32 , 33 on the contact carrier 11 near a plug-in base 26th is arranged and so in the plugging direction X of the plug contact 12th into the plug-in receptacle 21 entry.

In 4th become the clamp arms 32 , 33 of the first pair of clamping arms 34 from the contact carrier base 11A educated. One end of them is on the contact carrier base 11A connected and extend from there in the plugging direction X or in the direction of the contact carrier cover 11 B in its clamp arm chamber 20th into it. The clamp arms 32 , 33 are designed to be resilient, so that they can each be deflected outwards, away from the slot center plane (not shown).

The clamping means 30th the first embodiment are then supplemented by a second pair of clamping arms 35 with a third clamp arm 36 with and a fourth clamp arm 37 that between them the clamping gap 31 form. The third clamp arm 36 as well as the fourth clamp arm 37 arise near a plug-in opening 27 of the contact carrier 11 , by which the plug-in counterpart in the plug-in gap 23 immersed and are consequently removed from the contact carrier cover 11B educated. They extend against the direction of insertion X of the connector 10 in the direction of the contact carrier base 11A or in the direction of the free end of the first and second clamping arms 32 , 33 of the first pair of clamping arms 34 . The plug-in arms too 36 and 37 of the second pair of clamping arms 35 are in the respective clamp arm chamber 20th arranged.

The main advantage of this design is that one is in the plug-in gap 23 For example, a seated printed circuit board or an alternative plug-in counterpart is kept particularly stable, in particular if transverse forces lead to tilting or swinging of the connector about an axis parallel to the slot. The diametrically opposed clamp arms 36 , 33 or. 37 , 32 safely catch the respective tilting movement. The one on the respective clamp arm 36 , 33 or. 37 , 32 The leverage forces exerted are due to the opposing connection of the respective clamping arm 36 , 33 or. 32 , 37 particularly low. Since every pair of clamping arms 35 , 34 a fastening zone with the plug-in counterpart, in particular a printed circuit board, in the plug-in direction X so there are two consecutive and spaced-apart contact zones, the clamping forces of the clamping arm pairs 34 , 35 transferred particularly well to the circuit board.

The 8th , a sectional view according to section line VIII-VIII in 6th now shows the clamping means 30th the second embodiment of the invention, which is also in the clamping arm chamber there 20th imprisoned. Here, too, is the clamping means 30th by a pair of clamping arms, the third pair of clamping arms 38 , formed, the opposing clamping arms 39 between them the clamping gap 31 form. In this embodiment, the respective clamp arm is 39 of the third pair of clamping arms 38 close to the plug-in opening on the contact carrier 11 , more precisely on the contact carrier cover 11 B connected and extends against the plugging direction X of the connector 10 in the direction of the plug-in base 26th . In this embodiment of the connector 10 is in addition to the frictional connection between the plug-in counterpart, in particular the circuit board and the contact tips 17th the plug contacts 12th another frictional engagement zone through the contact between the clamping arms 39 and the plug counterpart formed. The contact zone of the clamping arms 39 is compared to the position of the contact peaks 17th close to the plug-in base and thus reduces the oscillatory movements of the plug-in contact 10 available force vector.

The specific training of the clamping means 30th of the third embodiment of the invention is the 12th can be seen in which it is a sectional view of the contact carrier 11 according to section line XII-XII in 10 acts.

The fourth pair of clamping arms to be found here 40 with its opposite clamping arms 41 that between them the clamping gap 23 form, extends in turn into the plug-in gap 23 into it. The clamp arms 41 sit in the respective clamp arm chamber 20th . They have a connection to the contact carrier 11 , more precisely the contact carrier base 11A in the area of the plug-in base 26th . Your free end is in the plugging direction X located and extends towards the contact carrier cover 11 B or plug-in opening 27 . Here, too, one of the contact peaks becomes 17th formed downstream contact zone in the plugging direction, so that the connector 10 vibrating transverse forces can be safely absorbed.

Another possibility, clamping means, is also shown 30th to accomplish. These are clamping ribs 50 , which on the insulating bars 25th be applied. This is especially the 3 , 7th and 11 refer to. Even if this embodiment is shown here exclusively in combination with clamping arms, the clamping means can 30th also exclusively through such clamping ribs 50 be formed, which is in the plug-in gap 23 extend into it. With these clamping ribs 50 a resilient deflection is not provided. Instead, they will be plastically deformed when a plug-in counterpart, for example a printed circuit board, is inserted and thus create the frictional connection.

Finally, it should be mentioned that the clamping means 30th , regardless of whether designed as a clamping rib or pair of clamping arms, also on the outside of the side cheek 19th can be arranged and not necessarily in the plug-in gap 23 must be located.

List of reference symbols

10

Connectors

11

Contact carrier

11A

Contact carrier base

11 B

Contact carrier cover

12th

Plug contact

13th

Clamping section

14th

Contact leg

15th

Conductor connection section

16

Contact gap

17th

Contact tip

18th

contact

19th

Sidewall

20th

Clamp arm chamber

21

Plug-in socket

22nd

Contact carrier wall

23

Plug-in gap

24

Thigh niche

25th

Insulating bars

26th

Plug-in base

27

Plug-in opening

30th

Clamping means

31

Clamping gap

32

first clamp arm

33

second clamp arm

34

first pair of clamping arms

35

second pair of clamping arms

36

third clamp arm

37

fourth clamp arm

38

third pair of clamping arms

39

Clamp arm

40

fourth pair of clamping arms

41

Clamp arm

50

Clamping rib

K

Contact gap

M.

Clamping gap

W.

Slot width

X

Mating direction

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 202012002501 U1 [0002]

Claims (11)

Connector (10) - with a contact carrier (11) which can be pushed in the plug-in direction (X) onto a plug-in counterpart, such as a printed circuit board or contact blade, - with a plug-in receptacle (21) formed at the front in the plug-in direction (X), which is supported by two opposing members Contact carrier walls (22) is formed, - with a plug-in gap (23) within the plug-in receptacle (21), the width (W) of which is adapted to a plug-in counterpart to be received, - with a plug-in receptacle base (26) which has a plug-in opening (27) of the plug-in receptacle ( 21) is arranged opposite one another, - with plug contacts (12) arranged next to one another, which are held by the contact carrier (11) and sit in the plug receptacle (21), characterized in that - the contact carrier (11) in addition to the contacts at least one clamping means ( 30), which can interact frictionally with the mating connector and reduce the freedom of movement of the connector (10) transversely to the direction of insertion (X), - the clamping means (30 ) forms a clamping gap (31), the width (M) of which is smaller than the width of the plugging gap (W), - the plugging gap (23) and the clamping gap (31) have at least one common gap plane. Connector (10) Claim 1 , characterized in that the plug-in gap (23) and the clamping gap (31) have a common gap center plane. Connector (10) according to one of the Claims 1 or 2 , characterized in that the clamping means (30) is formed by a pair of clamping arms (34, 35, 38, 40) of two opposing clamping arms (32, 33, 36, 37, 39, 41) which between them form the clamping gap (31 ) train. Connector (10) Claim 3 , characterized in that the clamping arms are arranged in the plug-in receptacle. Connector according to Claim 3 or 4th , characterized in that the clamping arms (32, 33, 36, 37, 39, 41) are resiliently deflectable. Connector (10) according to one of the Claims 3 to 5 , characterized in that the clamping arms (32, 33, 36, 37, 39, 41) have a tied end and a free end opposite the tied end. Connector (10) according to one of the Claims 3 to 6th , characterized in that the contact carrier (11) forms at least one clamping arm chamber (20) in which a clamping arm (32, 33, 36, 37, 39, 41) is seated, in particular each contact carrier wall (22) having a clamping arm chamber (20) , the clamping arm chambers (20) are spaced apart from one another by the clamping gap (32) and a clamping arm (32, 33, 36, 37, 39, 41) of the clamping arm pair (34, 35, 38, 40) is arranged in each clamping arm chamber (20) is. Connector (10) according to one of the Claims 3 to 7th , characterized in that at least the clamping arm (32, 33, 36, 37, 39, 41) is connected close to the insertion opening and extends with its free end against the insertion direction. Connector (10) according to one of the Claims 3 to 8th , characterized in that at least one clamping arm (32, 33, 36, 37, 39, 41) is connected near the plug-in receiving base (26) and its free end extends in the plug-in direction (X). Connector (10) according to the Claims 7 , 8th and 9 , characterized in that there are two pairs of clamping arms (34, 35) arranged one behind the other in the insertion direction (X) and each clamping arm (32, 33, 36, 37) of a pair of clamping arms (34, 35) is arranged in a clamping arm chamber (20), wherein - In a first clamping arm chamber (20) a clamping arm (32) of the first clamping arm pair (34), which is connected close to the plug-in receiving base, is arranged and in the first clamping arm chamber (20) a clamping arm (36) of the second clamping arm pair (35), which is connected close to the plug-in opening, is arranged and the free Ends of both clamping arms (32, 36) face each other, - a clamping arm (33) of the first pair of clamping arms (34), which is connected near the plug-in base, is arranged in a second clamping arm chamber (20) and a clamping arm (37) connected near the plug-in opening is arranged in the second clamping arm chamber (20) of the second pair of clamping arms (35) is arranged and wherein the free ends of both clamping arms (33, 37) face each other. Connector (10) according to one of the Claims 1 or 2 , characterized in that the clamping means (30) are designed as clamping ribs (50) which are carried by insulating webs (25) which spaced apart plug contacts (12) lying next to one another.

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