DE202018100416U1 - Connector with locking safety cover - Google Patents

Abstract

Connector (10), in particular direct connector for contacting contact openings (36) of a printed circuit board (19), - with a contact carrier (11), which via coding, in particular coding pins (16) and a reverse polarity (18), in particular in the form of Polungsvorsprüngen ( 56), with conductor insertion channels (14) formed by the contact carrier (11) for accommodating connecting conductors and with contact recesses (15) for receiving plug contacts (12), with a securing hood (60) surrounding the contact carrier (11) wherein the contact carrier (11) in the securing hood (60) in the insertion direction of the connector (10) displaceable between a mounting position and a pre-assembly, with a primary fuse (17) holding the connector (10) on the circuit board (19), which part of the safety hood (60), wherein the primary safety (17) is displaceable from a locking position into a release position, characterized in that the contact carrier (11) holds in its mounting position within the securing hood (60), the primary fuse (17) in its locked position.

Description

The invention relates to a connector, in particular direct connector for contacting contact openings of a printed circuit board, with a contact carrier, which may have coding, in particular coding pins and a reverse polarity, in particular in the form of Polungsvorsprüngen with formed by the contact carrier conductor insertion channels for receiving connecting conductors and contact recesses for receiving plug contacts, with a securing hood, which surrounds the contact carrier, wherein the contact carrier in the safety hood in the insertion direction of the connector displaceable between a mounting position and a pre-assembly is displaced and with a connector holding the circuit board primary fuse, which is part of the fuse hood, wherein the primary fuse is displaceable from a latch position to a release position.

Such connectors are well known from the documentally unassignable prior art. The connectors serve to make contact with a connecting conductor to a printed circuit board by means of plug contacts. The connectors can be designed as a direct connector. These direct connectors have plug contacts whose conductor sections are contacted directly by the printed circuit board. These direct connectors are provided with plug contacts for specially shaped printed circuit boards, which have openings for this purpose, the inner peripheral surface is provided with an electrical layer. This electrically conductive layer of the printed circuit board comes into direct contact with the contact fingers of the plug contacts.

There are generic connectors known which have a safety hood. The fuse cover surrounds the contact carrier of the connector on the outer circumference, wherein the contact carrier is movably arranged in the securing hood in order to be able to be displaced from a pre-assembly position into an assembly position.

Once the connector is on the circuit board, the contact carrier, which carries the plug contacts, is moved from the pre-assembly in the mounting position. The fuse cover surrounding the contact carrier then securely holds the connector to the circuit board.

Furthermore, generic connectors are known to carry a primary fuse. The primary fuse secures the connector to the circuit board and protects the contact between the connector and the circuit board against unintentional release. Furthermore, the primary fuse serves to protect against increased tensile forces, which are applied by the connecting conductors. The primary fuse thus ensures a secure and permanent contact.

The primary fuse forms at least one locking element, which cooperates with cutouts in the circuit board to arrange the connector to the circuit board. These locking elements have latching means which engage under the circuit board.

Connectors are subjected to constant miniaturization, with the requirements for securing the connector to the circuit board remain at least constant.

The object of the invention is to provide a connector whose design ensures an optimized and secure fixing of the primary fuse to the circuit board.

The invention is achieved by a connector with the features of claim 1, in particular its characterizing feature, according to which the contact carrier holds in its mounting position within the fuse cap, the primary fuse in its locked position.

The main advantage of the invention is that the primary fuse of the fuse cover is held by the contact carrier located in the mounting position on the circuit board in the locked position. The primary fuse is thus blocked against displacement into the release position and removal of the connector from the circuit board is not possible nondestructive. A connector fixed in this way on the printed circuit board can thus withstand higher loads and can therefore also be used in environments with increased vibration without detaching from the printed circuit board.

It is provided that the primary fuse comprises at least one locking arm arranged on the locking arm, which extends in the plugging direction. The locking arm arranged on the securing arm engages under the printed circuit board in order to arrange the plug connector on the printed circuit board.

In addition, it is envisaged that the contact carrier is arranged in its mounting position in that space in which the latching arm is to shift to take the release position and thus blocks the displacement movement of the latching arm in the release position.

Advantageously, it is provided that the primary fuse has at least two mutually opposite latching arms, wherein the space is arranged for the arrangement of the contact carrier in its mounting position between the latching arms.

Furthermore, it is envisaged that the primary fuse comprises at least two paired juxtaposed latching arms whose locking members have different locking geometries.

It is envisaged that the latching member of the first latching arm has a latching surface which engages under the printed circuit board and which is oriented substantially orthogonally to the plugging direction of the plug connector. The locking surface is thus aligned approximately parallel to the underside of the circuit board. The connector is thus secured against tensile force. The holding force of the first locking arm is up to 60 Newton.

It is further provided that the latching member of the second latching arm has a circuit board at least teiluntergreifende latching surface which is formed starting from the latching arm in the direction of insertion drop. The locking arm initially serves to compensate for tolerances between the contact carrier of the connector and the circuit board. Depending on the thickness of the printed circuit board, the printed circuit board is completely or at least partially underlaid by the sloping latching surface and, in addition to the first latching surface, provides the plug connector with support on the printed circuit board.

In a particularly preferred embodiment, the angle between the sloping locking surface with the circuit board encloses an angle of 20 ° and thus allows a tolerance compensation of up to 10% of the nominal thickness of the circuit board.

Furthermore, it is provided that the safety hood has two oppositely arranged and oriented in the insertion direction Rastarmpaare. The latching arms of different Rastarmpaare with locking members of the same geometry are diagonally opposite each other.

Due to the diagonally opposite arrangement of the locking members of the same geometry of the one hand, the tilting of the connector in the circuit board prevents and on the other hand ensures protection against increased traction.

In order to release the connector from the circuit board, it is provided that each latching arms has a release cam, which serves the return displacement of the locking member in the space of the release position to separate the connector from the circuit board, wherein the contact carrier is displaced in the pre-assembly. The contact carrier must be in the preassembly position prior to disconnecting the connector from the circuit board to avoid blocking the latching arms of the primary fuse.

However, the release cams of the latching arms are optional and therefore not a mandatory feature of the latching arms.

The invention will now be explained with reference to embodiments, from which further advantages of the invention will become apparent. Show it:

1 : Exploded view of a first embodiment of a connector according to the invention with a detent pin formed secondary fuse and circuit board,

2a : Side view of the latch pin according to 1 .

2 B : Section enlargement according to section circle IIb in 2a with view of the locking projections of the locking pin,

3 : View from above on the head part of the locking pin according to 2a with tool approach,

4 Image: Top view on a circuit board,

5 : perspective view of the contact carrier of the connector according to 1 from above,

6 : perspective view of the contact carrier according to 5 from underneath,

7 : perspective side view of the contact carrier according to 5 .

8th : Sectional view of a first latching arm of a primary locking of the connector according to 1 along the cutting plane XII-XII according to 7 .

9 : Sectional view of a second latching arm of a primary locking of the connector according to 1 along the cutting plane XIV-XIV according to 7 .

10 : View of the connector according to 1 from above, which on the circuit board according to 4 seated,

11 : Bottom view of the PCB according to 4 with arranged connector according to 1 and locking pin in unlocking position,

12 : View of the on the circuit board according to 4 arranged connector according to 1 with locking pin in the locked position,

13 : Bottom view of the PCB according to 4 with arranged connector according to 1 and locking pin in the locking position,

14 FIG. 2: perspective view from below of the connector arranged on the printed circuit board according to FIG 1 with locking pin in the locked position,

15 : Exploded view of a second embodiment of the connector,

16 : View of the connector according to 15 from above,

17 : Sectional view of the connector according to 15 along the section XV-XV according to 16 with contact carrier in pre-assembly,

18 : Sectional view of the connector according to 15 along the sectional plane XVI-XVI according to 16 with contact carrier in mounting position.

In the figures, a connector according to the invention is indicated generally by the reference numeral 10 Mistake.

In the 1 to 14 is a first embodiment of the connector 10 disclosed. A second embodiment is in the 15 to 18 shown. Identical or equivalent components are named with identical reference numerals and terms. Unless otherwise specified, the comments on an embodiment apply mutatis mutandis to the alternative embodiment.

In the 1 is next to the connector 10 with a contact carrier 11 and a secondary backup 26 , a circuit board 19 shown.

The connector 10 indicates the contact carrier 11 on which a housing 13 for plug contacts 12 forms. The housing 13 of the contact carrier 11 is with ladder slot channels 14 provided, which serve to receive connecting leads, not shown here. These are via insulation displacement forks 48 with the plug contacts 12 electrically connected. The plug contacts 12 form the contact fingers 49 which the contact opening 36 a circuit board 19 engage as soon as the connector 10 on the circuit board 19 is arranged, such as in 11 shown.

In addition, the housing 13 with contact recesses 15 equipped, in which the plug contacts 12 be inserted. The housing 13 carries on its outer surface several coding pins 16 which the connector 10 in the direction of insertion and the connector 10 on the circuit board 19 with corresponding coding, in particular in the form of coding holes 37 , assign.

The housing 13 indicates at its front 20 latch hook 21 on, by means of which several connectors 10 can be arranged together for packaging purposes. On the back side 22 of the contact carrier 11 forms the housing 13 Contours for recording 23 of latching hook 21 out, by means of which more connectors 10 on the contact carrier 11 can be arranged.

Furthermore, the contact carrier 11 with a polarity reversal protection 18 fitted. The reverse polarity protection 18 should be a short-circuiting contacting the plug contacts 12 with the contact openings 36 the circuit board 19 avoid. The reverse polarity protection 18 is from three of the bottom of the contact carrier 11 springing polarity projections 56 formed, such as in 6 shown. In this case, with respect to the paper plane right two of the Polungsvorsprünge 56 on the contact carrier 11 formed, whereas left with respect to the paper plane only a Polungsvorspung 56 is trained.

The housing 13 of the contact carrier 11 is plug-in directional parallel with a hole 24 interspersed. This hole 24 has a first notch 25A and a second notch 25B on. The second notch 25B is an optional and not a mandatory feature of the hole 24 ,

The hole 24 serves to accommodate the secondary fuse 26 , in particular in the form of a locking pin 27 , The detent pin 27 has a header 28 and a pen-like body 29 on.

The 2a shows the locking pin 27 in side view. The outer circumference of the pen-like body 29 the locking pin 27 Partially covered by mounting bolt tabs 47 and latch detent protrusions 33 surround. The mounting load projections 47 serves the pre-assembly of the locking pin 27 on the contact carrier 11 , The latch catch projections 33 engage under the circuit board 19 and hold the connector 10 on the circuit board 19 ,

The latch catch projections 33 , which increases in 2 B are shown, are formed thread-section-like and serve the bracing of the contact carrier 11 on the circuit board 19 , At the same time, the thread pitch also makes it possible to compensate for board tolerances.

The pen-like basic body 29 the locking pin 27 has a slot 41 on top of a first sidewall 40A and a second side wall 40B is limited. The slot 41 allows a diameter-reducing return displacement of the side walls 40A and 40B that the latch catch projections 33 wear.

In the head area 28 is the rib 31 shown. This cooperates with the first or the second notch 25A . 25B the bore 24 (please refer 1 . 5 ). This rib 31 cooperates depending on the locking position of the locking pin 27 with the first or second notch 25A . 25B and holds the detent pin 27 or its locking latching projections 33 in the locking or unlocking position of the secondary fuse 26 ,

The rib 31 and the head area 28 the locking pin 27 are in the 3 shown. The head area 28 forms a groove 30A from, which serves to receive a tool, not shown here and so the locking pin 27 shifted in locking or unlocking position. In the groove 30A For example, a screwdriver can be introduced, by means of which the locking pin 27 in the hole 24 to turn 90 °.

The 4 shows the circuit board 19 from above. The circuit board 19 forms the contact openings 36 for receiving the plug contacts 12 of the contact carrier 11 out. Furthermore, the circuit board 19 one in the middle of the circuit board 19 formed breakthrough 39 with a keyhole-like contour. This contour is divided into a stalk section 58 and a beard section 38 , The stalk section 58 serves to accommodate the pen-like body 29 the locking pin 27 , The beard section 38 serves to accommodate a coding pin 16 of the contact carrier 11 , On both sides adjacent to this beard section 38 are two encoder holes 37 in the circuit board 19 formed, which recording the other coding pins 16 of the contact wearer 11 serve.

Adjacent to the breakthrough 39 indicates the circuit board 19 a first and a second slot 35A . 35B on. These slots 35A and 35B have sections, which on the one hand with a primary fuse 17 and on the other hand with the polarity projections 56 the reverse polarity protection 18 cooperate. The slot 35A cooperates on the one hand with the primary security 17 and with a polarity projection 56 , The slot 35B cooperates with the primary security 17 and with two polarity protrusions 56 and is therefore designed to be longer than the slot 35A , An incorrect positioning of the connector 10 on the circuit board 19 is thus excluded.

The primary backup 17 is for example in the 5 to 7 represented and serves the arrangement of the contact carrier 11 on the circuit board 19 , The primary backup 17 is formed by two Rastarmpaaren. Each pair of latching arms has a first latching arm 44 and a second latch arm 45 , The latch arms 44 . 45 each originate in a remote from the free end Rastarmwurzel 52 on the contact carrier 11 is arranged. The latch arms 44 . 45 each have a release cam 53 on which of the rearward displacement of the latching arms 44 . 45 to serve in a release position to the connector 10 from circuit board 19 to separate when a corresponding pressure is applied here, wherein the release cam an optional and thus no mandatory feature of the locking arms 44 . 45 are.

The latch arms 44 . 45 have in at its free end latching organs 50 and 51 on what different locking surfaces 54 and 55 exhibit.

In the 8th is the first catch 50 of the second latching arm 45 shown. The first catch 50 of the second latching arm 45 forms a latching surface 54 from which the circuit board 19 engages below. This locking surface 54 is aligned substantially orthogonal to the plug-in direction of the connector, that is approximately parallel to the bottom 46 the circuit board 19 as it is for example in the 11 and 13 can be seen. The connector 10 is so against a tensile force, which can be applied, for example, by the connection conductors, not shown, secured. The locking surface 54 of the first catch member 50 allows a holding force of up to 60 Newton.

In the 9 is the second catch 51 of the locking arm 44 shown. The second catch element 51 of the locking arm 44 has a latching surface 55 on, which starting from the first latching arm 44 designed sloping in the direction of insertion.

The locking surface 55 serves the tolerance compensation between the contact carrier 11 and the circuit board 19 , The on the circuit board 19 arranged latching arms 44 are for example in the 11 and 13 shown. PCBs 19 with minimum strength, the sloping catch surface engages under 55 completely, so that the near the first latch arm 44 located area origin the connector 10 in addition to the locking surface 54 Stop at the PCB 19 offers. PCBs 19 with a maximum strength engages the sloping catch surface 55 only with its end facing away from the origin, which is the connector 10 in addition to the locking surface 54 Holds. Depending on the intermediate strength of the circuit board 19 finds a Teiluntergreifen the locking surface 55 instead of.

In a particularly preferred embodiment, the sloping locking surface closes 55 with the bottom 46 the circuit board 19 an angle of 20 ° and thus allows a tolerance compensation of up to 10% of the nominal thickness of the circuit board 19 , Also the sloping catch area 55 contributes to the anchoring of the connector 10 on the circuit board 19 at. The compensatable by them tensile load is due to the sloping locking surface 55 but low.

The latch arms 44 . 45 rush the contact carrier 11 before and are arranged parallel to each other. The connector 10 has two Rastarmpaaren, on opposite sides of the connector 10 are arranged. The catch organs 50 and 51 the same locking geometry lie diagonally on each other contact support 11 across from. The example of 11 can be seen that the catch member 51 the leftmost Rastarmpaares with respect to the paper plane, the catch member 50 on the other hand is arranged behind. The right with respect to the paper plane Rastarmpaar, however, has a front-lying locking member 50 whereas the catching organ 51 located at the back. In this way, the aforementioned diagonality is ensured.

Through the diagonally opposite locking organs 50 and 51 same design with their locking surfaces 54 and 55 will tilt the connector 19 under tensile load prevents and thus the contact point load between the plug contacts 12 and the contact holes 36 uniform.

In the 10 and 11 is the secondary backup 26 stored in unlocking position and in top view ( 10 ) and from below ( 11 ). The unlocking position is displayed here by the groove 30A pointing to the word "release". Another form of optical display is possible. In the unlock position, the rib cooperates 31 of the head area 28 the locking pin 27 with the first notch associated with the term "release" 25A , In this position hold the rib 31 and the first notch 25A the locking pin 27 in the unlocking position. An independent turning of the locking pin 27 or by vibration is not possible. The secondary backup 26 is just so in the stalk section 58 the breakthrough 39 stored that the latch locking projections 33 the locking pin 27 the circuit board 19 do not attack.

In the 12 to 14 is the detent pin 27 shifted to the locked position. The rotatably mounted locking pin 27 allows the contact carrier 11 with the circuit board 19 to be tense by the detent pin 27 at on the circuit board 19 mounted connector 10 is rotated by the Entriegelstellung in the locking position. The detent pin 27 is in bar position so in the stalk area 58 the breakthrough 39 stored that the latch locking projections 33 of the locking pin 27 the circuit board 19 engage under and through the threaded portion-like configuration of the latch locking projections 33 the contact carrier 11 with the circuit board 19 tense.

Alternatively, the locking pin 27 when placed on the circuit board 19 already in the locked position. Then the locking latch projections run 33 on the edge of the breakthrough 39 on. The vertical in the locking pin 27 arranged slot 41 allows for the continuation of the locking pin a restoring elastic return displacement of the locking latch projections 33 of the detent pin 27 so that through the breakthrough 39 swap through and so on the circuit board 19 under attack.

In the locking position of the locking pin 27 , the rib cooperates 31 of the head area 28 the locking pin 27 now with the second notch 25B the bore 24 , The bolt position is marked with the word "lock". The groove 30A points to the word "lock". The connector 10 is on the circuit board 19 securely mounted.

In the 15 to 18 is a second embodiment of the connector 10 disclosed. In addition to the named components of the connector 10 the first embodiment, this connector has 10 a safety hood 60 on.

In the 15 is next to the connector 10 with contact carrier 11 and safety hood 60 , the circuit board 19 shown.

The safety hood 60 surrounds the contact carrier 11 on the outside, the contact carrier 11 in the safety hood 60 is movably arranged. The contact carrier 11 has plug-in direction parallel locking bolt 61 on which the contact carrier 11 lead this and in the safety hood 60 position in pre-assembly position.

In addition, forms the contact carrier 11 Rest profiles 63 and locking grooves 66 from which the contact carrier 11 leading in the direction of insertion and according to the pre- or mounting position of the contact carrier 11 in the safety hood 60 with locking bars 65 the safety hood 60 cooperate.

Furthermore, the contact carrier 11 locking tabs 62 on which the housing 13 on the short sides of the contact carrier 11 arise from. The locking tabs 62 are resiliently elastic and cooperate with detent openings 64 , which of the safety hood 60 be trained as it is in 16 is shown. Through the cooperation of Rastlaschen 62 and detent openings 64 becomes the contact carrier 11 on the safety hood 60 locked. By pressure, the locking tabs 62 be relocated, leaving the contact carrier 11 from the safety hood 60 can be solved.

In addition, the locking tab forms 62 a catch 67 out, with a corresponding recess 68 , which of the safety hood 60 is trained, cooperates. Once the contact carrier 11 moved into the mounting position, the detent acts 67 with the recess 68 together, as in the sectional view in 17 shown. The catch 67 dives through the recess 68 through and attached so the contact carrier 11 additionally in the safety hood 60 , By the return displacement of the locking tabs 62 are also the locking lugs shifted back, so that the contact carrier 11 can be solved by the safety hood.

In contrast to the first embodiment of the connector 10 , the primary backup spring 17 , the reverse polarity protection 18 and the coding pins 16 the safety hood 60 not the contact carrier 11 , The primary backup 17 has in this second embodiment of the connector 10 on both sides identical Rastarmpaare 44 on, which with the catch organs 51 are formed. The locking members have the locking surface 55 on which the tolerance compensation between contact carrier 11 and the circuit board 19 serve.

However, it is also conceivable that the primary fuse 17 identical to the first embodiment of the connector 10 is configured, such as in 5 shown.

Also the reverse polarity protection 18 can according to the first embodiment of the connector 10 be designed, as exemplified by the 6 can be seen.

For assembling the connector 10 on the circuit board 19 need the contact fingers 49 the plug contacts 12 in the contact openings 36 the circuit board 19 be taken to make an electrical contact.

The contact carrier 11 is by means of locking pin 61 in the safety hood 60 positioned, wherein the locking grooves 66 of the contact carrier 11 in pre-assembly with the locking bars 65 the safety hood 60 cooperate. The plug contacts 12 are in the contact holes 15 of the contact carrier 11 inserted. As the contact carrier 11 and accordingly also the plug contacts 12 in the pre-assembly spaced from the circuit board 19 present, is an electrical contact of the connector 10 with the circuit board 19 in the pre-assembly of the connector 10 locked out.

To the connector 10 ready to assemble, is the contact carrier 11 moved in the direction of insertion and thus shifted in mounting position. The locking bars 66 now grab in the locking profiles 63 of the contact carrier 11 and arrange so the contact carrier 11 in the safety hood 60 at. In addition, the locking tabs snap 62 at the detent openings 64 the safety hood 60 firmly. With the relocation of the contact carrier 11 in the insertion direction next to the coding pins 16 which the coding holes 37 the circuit board 19 penetrate, even the plug contacts 12 shifted in the direction of insertion. As a result, the contact fingers cooperate 49 the plug contacts 12 with the contact openings 36 in the circuit board 19 and thus enable the electrical contact.

The 17 shows the connector in pre-assembly position 10 on the circuit board 19 ,

In the 17 is the safety hood 60 the circuit board 19 arranged. The locking surfaces 55 the latch arms 44 engage under the circuit board 19 and put the safety hood 60 on the circuit board 19 firmly.

The contact carrier 11 is in pre-assembly position in the safety hood 60 arranged. The locking pins 61 of the contact carrier 11 sit in an upper area A above the locking arms 44 , Thus, the space required for a releasing rearward displacement of the latching arms is free. The latch arms 44 can by pressure on the release cam 53 be moved back into the movement space and so the safety hood 60 slightly from the circuit board 19 be solved.

Will the contact carrier 11 , as in 18 shown in the safety hood 60 shifted in mounting position, the locking pin 61 moved in the direction of insertion and penetrate into the aforementioned movement space and thus block the releasing back displacement of the locking arms 44 , Due to the blocking, it is now impossible, the connector 10 from the circuit board 19 to solve. A secure and permanent contact is guaranteed.

LIST OF REFERENCE NUMBERS

10

Connectors

11

contact support

12

plug contact

13

casing

14

Head insertion channel

15

contact recess

16

Polarizing

17

primary fuse

18

Verpolungssicherung

19

circuit board

20

front

21

latch hook

22

back

23

Contours for recording 21

24

drilling

25A

first notch

25B

second notch

26

Secondary fuse

27

Plunger

28

head area

29

body

30

tool attachment

30A

groove

31

rib

33

Bolt locking projections

35A

first slot

35B

second slot

36

contact openings

37

Kodierbohrung

38

Bart section

39

breakthrough

40A

first sidewall of 29

40B

second side wall of 29

41

slot

42A

Page A of 24

42B

Side B of 24

44

first stop arm

45

second latching arm

46

Bottom of 19

47

Mounting catch projections

48

IDC fork

49

contact fingers

50

first catch member

51

second catch member

52

Rastarmwurzel

53

release cam

54

first catch surface

55

second locking surface

56

Polungsvorsprung

58

stem portion

60

fuse cap

61

locking pin

62

Rest case

63

catch profile

64

latching opening

65

latching web

66

locking grooves

67

locking lug

68

recess

A

Upper area of the latching arms 44

IIb

cutout circle

Claims (10)

Connector ( 10 ), in particular direct connectors for contacting contact openings ( 36 ) of a printed circuit board ( 19 ), - with a contact carrier ( 11 ), which via coding, in particular coding ( 16 ) and a reverse polarity protection ( 18 ), in particular in the form of Polungsvorsprüngen ( 56 ), - with the contact carrier ( 11 ) formed conductor insertion channels ( 14 ) for receiving connection conductors and with contact recesses ( 15 ) for receiving plug contacts ( 12 ), - with a safety hood ( 60 ), which the contact carrier ( 11 ), wherein the contact carrier ( 11 ) in the safety hood ( 60 ) in the plug-in direction of the connector ( 10 ) is displaceable between a mounting position and a pre-assembly position, - with a connector ( 10 ) on the printed circuit board ( 19 ) maintaining primary security ( 17 ), which part of the safety hood ( 60 ), the primary fuse ( 17 ) is displaceable from a latch position into a release position, characterized in that the contact carrier ( 11 ) in its mounting position within the safety hood ( 60 ) the primary fuse ( 17 ) holds in its locked position. Connector ( 10 ) according to claim 1, characterized in that the primary fuse ( 17 ) at least one on the safety hood ( 60 ) arranged latching arm ( 44 . 45 ), which extends in the insertion direction. Connector ( 10 ) according to claim 2, characterized in that the contact carrier ( 11 ) is arranged in its mounting position in that space in which the latching arm ( 44 . 45 ) is to shift to take the release position and so the displacement movement of the latching arm ( 44 . 45 ) blocked in the release position. Connector ( 10 ) according to claim 3, characterized in that the primary fuse ( 17 ) At least two opposing latching arms ( 44 . 45 ), wherein the space for the arrangement of the contact carrier ( 11 ) in its mounting position between the latching arms ( 44 . 45 ) is stretched. Connector ( 10 ) According to claim 2, characterized in that the primary fuse ( 17 ) At least two paired juxtaposed latching arms ( 44 . 45 ), whose latching organs ( 50 . 51 ) have different locking geometries. Connector ( 10 ) according to claim 5, characterized in that the latching member ( 50 ) of the first latching arm ( 45 ) a the printed circuit board engaging under detent surface ( 54 ), which is substantially orthogonal to the plugging direction of the connector ( 10 ) is aligned. Connector ( 10 ) According to claims 5 and 6, characterized in that the locking member ( 51 ) of the second latching arm ( 44 ) a the printed circuit board ( 19 ) at least partially undercut locking surface ( 55 ), which starting from the latching arm ( 44 ) is sloping in the direction of insertion. Connector ( 10 ) according to one of the preceding claims, characterized in that the safety hood ( 60 ) has two mutually opposite arranged and oriented in the insertion direction Rastarmpaare. Connector ( 10 ) according to claim 8, characterized in that latching arms ( 44 . 45 ) different Rastarmpaare with locking members ( 50 . 51 ) of the same geometry face each other diagonally. Connector ( 10 ) according to one of the preceding claims, characterized in that each latching arm ( 44 . 45 ) a release cam ( 53 ), which the return displacement of the locking member ( 50 . 51 ) in the space of the release position to the connector ( 10 ) from the printed circuit board ( 19 ) too with the contact carrier ( 11 ) is shifted in pre-assembly position.

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