DE29606347U1 - Electrical connector, in particular for printed circuit boards - Google Patents

Description

Patent Attorneys Tergau & Pohl, Nuremberg.*'. ,"*. .**, : ,'*.<*' Page

&igr; 96233-8/42

3 Description

4 Electrical connector, especially for printed circuit boards

6 The invention relates to an electrical connector with the features of the

7 Preamble of claim 1.

9 In a connector of the type mentioned above, previously known from US 3 360 767,

10th type, both a circuit board and an electrical conductor are connected by means of plug-in

11 assembly with the insulating housing of the connector electrically connected. Both

12 Both the circuit board and the conductor are clamped in the insulating housing.

13 The disadvantage of the previously known connector is that the clamping fixation

14 The insulating housing made of plastic is always used for this purpose.

15 This leads to undesirable thermal and mechanical stresses and

16 This leads to rapid wear of the insulating housing material. A sufficient

17 Adequate fixing and electrical contacting of the circuit board and the conductor is in the insulating housing of the connector during the operating period are therefore

is not guaranteed.

21 The invention is based on the object of providing a connector of the type

22 and to improve its operational safety.

23 This object is achieved by the combination of features of claim 1.

25 According to the invention, the contact spring itself provides the clamping fixation or

26 Plug-in assembly of a conductor and an element to be contacted. Since the

27 Contact spring is made of electrically conductive metal, it has a long

28 consistently good thermal and mechanical properties throughout the operating time

29 ten. This allows standardization requirements for the terminal blocks

30 fixing or plug-in assembly. In addition, the insulating housing can

31 due to the elimination of thermal/mechanical loads from a

{N:\AN\9S233.DOC) 01 April 199S

Patent Attorneys Tergau & Pohl, Nuremberg. **«.**. . * ^# « i .****** Page

&igr; equally inferior and therefore inexpensive insulating plastic

2 should be provided.

4 According to claim 2, an element to be contacted can be arranged in different

5 Relative positions, especially both horizontally and vertically on the connector

6 connectors. This allows the connector to be installed in a space-saving manner at

7 different existing spatial conditions or required relative positions &bgr; can be adapted.

10 Claim 3 proposes a particularly simple and mechanically stable plug connection

11 connection between the contact spring and the element to be contacted.

12 This element is in particular a contact pin of the printed circuit board

13 te, which can be positioned differently on the circuit board. In this

µm "indirect" plug-in assembly between contact spring and circuit board results in

is compared to directly plugging the connector onto the PCB

ie edge (“direct” plug-in assembly) more variable positioning options for the plug-in

17 connectors on the circuit board.

19 Claim 4 further stabilizes the plug-in assembly. In addition, the tulip con-

20 tact through its diametrical cutout spring contact-like to different dimensional

21 ned contact pins or elements to be contacted can be adapted.

23 According to claim 5, the contact spring acts on the contact element inserted into the insulating housing.

24 conductors with spring force. Due to their spring elasticity,

2s the connection end to different outer contours of the conductor or the conductor

26 without compromising the electrical connection reliability

27 of the conductor in the insulating housing of the connector.

28 connectors according to the specification can therefore accommodate different conductor types

29 can be connected to the connector by a simple plug-in process.

30 den. This supports the universal applicability of the inventive

si connector. For example, the stripped conductor end of a conventional

(N:IANI\96233.DOC) 01 April 1996

Patent Attorneys Tergau & Pohl, Nuremberg »".,". _t **.i .*%," Page 3

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1 conductor to the connector. It is also advantageous

2 Furthermore, the spring force of the connection end can be increased by appropriate processing

3 processing of the contact spring and/or by the spring constant of the selected

4 spring material is pre-programmable to a certain extent. This allows the

5 The connection end of the contact spring can be adapted even better to different conductor cross-sections. According to the invention, it is therefore possible to adapt the contact spring to different conductor cross-sections without any design changes.

7 ments of the insulating housing, it is possible that structurally identically designed

&bgr; tact springs have connection ends with different spring force when

9 a multi-pin connector conductors with different cable cross-sections

10 cuts should be connected.
11

12 The connection end is designed like a barb and is loaded

13 the conductor additionally with a holding force approximately in the direction of insertion, which

14 unwanted pulling out of the conductor from the insulating housing of the plug

15 connector. This barb is easily manufactured by

16 an angled section of the contact spring is formed, whereby the

17 The connecting end is designed to save space. When the conductor is inserted into the is insulating housing, the connecting end automatically bends against the spring force.

19 When the conductor is fully inserted, the connection end also automatically springs shut.

20 back and clamps the conductor with its spring force. 21

22 According to claim 6, the contact spring is longitudinally slotted at the connection end so that

23 Two independent conductors per terminal to the same contact spring

24. This is particularly useful if the conductors have a

25 have a small cable cross-section, as is the case in telecommunications

26 is the case. In this case, two conductors with the same pole can be advantageously

27 are connected mechanically and electrically.

29 According to claim 7, the pivoting range of the connection end during the

30 Production or release of the clamp fixation is limited. This ensures

31 ensures that the externally introduced conductor or an assembly tool

(N.VANi96233,DOC) 01 April 1996

Patent Attorneys Tergau & Pohl, Nuremberg.", , **. »**. &Idigr; * "* «." Page

9 fc » *

&igr; tool-loaded connection end over a long operating period a con-

2 constant spring force.

4 The measure according to claim 8 supports the mechanically stable support

5 of the connection end which is loaded from the outside and thus pivoted on the s stop tab.

&bgr; Claim 9 supports the position securing of the entire contact spring within

9 of the insulating housing of the connector. For this purpose, the contact spring is assembled

10 is simply inserted into the insulating housing and automatically locks into place

11. The locking means used here is a preferably integrally formed with the contact spring

12 connected rear grip part, which is connected to a fi-

13 xiemase. This protects the contact spring from accidental

µgr; Pulling out of the insulating housing in the opposite direction to the insertion direction is secured. is On the other hand, if appropriate, the engaged contact spring can be intentionally released using suitable measures and/or using assembly tools that reach into the insulating housing.

ig According to claim 10, the rear gripping part for securing the position of the contact spring

20 mechanically stable and space-saving on the spring base body of the contact spring

21 sorted.

23 Claim 11 supports the manufacture and use of the contact spring as a co-

24 inexpensive mass-produced items.

26 Claim 12 creates a particularly stable design of the contact spring, where

27 for the components protruding beyond the spring body of one-piece

28 are part of the contact spring.

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Patent Attorneys Tergau & Pohl, Nuremberg .**,,. , * . &iacgr; ,. «. * Page 5

1 Claim 15 proposes a stable metal abutment for the spring-leg-like

2 connection end. This improves the force exerted on the connected conductor.

3rd clamping force.

s The measure according to claim 16 facilitates the assembly of the

s Inserting a conductor into the connector.

&bgr; Claim 17 proposes an actuating slot passing through the spring roof,

9 around the connection end with a tool, such as a screwdriver.

10 to apply pressure to the blade from the outside and to release the clamping of the conductor.

11 sen. In this function, the operating slot also acts as a release

12 locking windows.

14 The connector according to the invention can be designed as single-pole or multi-pole

15. Preferably, each pole of the connector is identical, so that even con-

16 structurally identical contact springs can be inserted into the insulating housing.

17 The number of components to be stocked for the realization of all designs

18 The variation in the connector shape is therefore minimal. Due to the identical

19 The design of the terminal poles of the insulating housing can be similar

20 tools can be used to produce the connectors cost-effectively.

21 den. Compared to several single-pole connectors, the multi-pole

22 connectors form a more compact and mechanically stable unit. At the same time

23 remains on a multi-pin connector with a large number of pins the connection

24 also many ladders clearly arranged and easy to assemble.

26 The subject matter of the invention is described in the figures with reference to the embodiments

27 examples are explained in more detail. They show:

29 Fig.1 a plan view of the connector according to the invention,

30 Fig.2 the connector according to section H-II in Fig.1,

31 Fig.3 the front view of the connector according to arrow direction III in Fig.2,

iN.-WN196233.DOC) 01 April 1996

Patent Attorneys Tergau & Pohl, Nuremberg**% _t *% , **, &iacgr;'■**;*'* Page

1 Fig.4 the top view of the connector according to arrow direction IV in Fig.2,

2 Fig.5 the connector according to section V-V in Fig.1 with plugged in cable

3 ter 11,

4 Fig.6 a front view of a pin strip with five contact pins,

5 Fig.7 the sectioned side view of the pin strip according to arrow direction VII in

6 Fig.6 and a connector connected to the contact pins,

7 Fig.8 the front view of another embodiment of a pin strip with &bgr; five contact pins,

9 Fig.9 the sectioned side view of the pin strip according to arrow direction IX in

10 Fig.8 and a connector connected to the contact pins,

11 Fig.10 a front view of the complete contact spring,

12 Fig.11 the sectioned side view of the contact spring according to section line Xl-

13 Xl in Fig.10 and

14 Fig. 12 is a developed view of the contact spring shown in Fig. 10 and Fig. 11.

ie The electrical connector 1 has an insulating housing 2 and, depending on the number of poles

&igr;? one or more contact springs 103 arranged in the insulating housing 102. The

The contact springs 103 assigned to different poles are arranged in a transverse direction

19 connection 19. In Fig.1 it is a 5-pin connector

20 binders 1.

22 The insulating housing 102 has an insertion opening 44 for receiving and fastening

23 of the stripped conductor end 12 of a conductor 11 (Fig.2, Fig.5). The input

24 guide opening 44, the insulating housing 102 has a contact opening 147 2s and a contact opening 148 as connections to the element to be contacted

26. The element to be contacted is in the illustrated

27 embodiments around a connection pin soldered to the circuit board 105

28 107 (Fig.6 to Fig.9). The contact spring 103 clamps the conductor end 12 in the

29 area of the insertion opening 44 and simultaneously forms the connection part to the con-

30 contact pin 107. In order for the connector 1 to be connected to a contact pin 107

si, the contact spring 103 is in the area of the contact opening 147 and in the area of the

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Patent Attorneys Tergau & Pohl, Nuremberg***, .**. ***, J . *t" Page

&igr; Contact opening 148 is penetrated by a cylindrical connection opening.

2 The opening edge of these connection openings is inserted into the insulating housing 102

3 is flanged in the manner of a tulip contact 124 (Fig.7, Fig.9). The tulip contact

4 124 acts like a contact socket with the complementary

5th contact pin 107.

7 The central longitudinal axes 149 and 150 of the two Tuipe contacts 124 are perpendicular

8 at an angle to each other (Fig.7, Fig.9). In other words, the plug directions

9 4.162 of the two tulip contacts 124 at right angles to each other. With the help of

10 straight (Fig.6) and right-angled (Fig.8) contact pins 107 result

11 There are four different versions of the plugging processes and different

12 Relative positions of the connector 1 to the circuit board 105. On the insulating housing

13 102, two cylindrical fixing pins 159 are formed, which are connected via a housing

14 floor 127 of the insulating housing 102. Depending on the design

15 shape of the contact pin 107 and the connected tulip contact 124 The plugged connector 1 with the fixing pin 159 is supported either on the

&igr;? Printed circuit board 105 or on a bent contact pins 107 receiving

18 Pin housing 161. To ensure that the tulip contact 124 is under good spring force

ig to the contact pin 107, the tulip contact 124 is connected by means of a

20 Spring longitudinal direction 9 extending longitudinal slot 151 or 152 diametrically

21 (Fig. 12). The longitudinal slot 151 is closed at one longitudinal end by a circular

22 shaped slot end 160, the longitudinal slot 152 through the rectangular shape

23 of the fixing flap 30 is extended to ensure sufficient elasticity of the tulip contacts

24 124 to ensure.

26 In the area of the insertion opening 44, the contact spring 103 has a connection end

27. The connection end 10 clamps the conductor end 12 under spring force.

28 kung (Fig.5). Here, the connection end 10 presses the conductor end 12 against a

29 spring roof 153, which is still to be described, as a further component of the contact spring see above 103. The structure of the contact spring 103 is described below using Fig. 10 to

si Fig.12 explains in more detail: The connection end 10 is surrounded by a spring

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Patent Attorneys Tergau & Pohl, Nuremberg^», , '*, ,**, &diams; , *\ ,*' Page 8

&igr; 9 extending spring base body 114 of the contact spring 103 in the manner of a

2 Leg of a leg spring angled, i.e. bent in bending direction 15

3 (Fig.11). The connection end 10 and the spring base body 114 together form

4 together form an acute angle &agr; opening towards the tulip contacts 124.

5 of about 40°-60° (Fig.11). In this way, the connection end 10 is clamped

β the inserted conductor end 12 with its approximately in the insertion direction 13 of the conductor

7 11 pointing free end 16 and is therefore like a barb against a

β Removal of the conductor 11 against the insertion direction 13 is effective.

10 The connection end 10 has a longitudinal groove 9 running in the spring longitudinal direction.

11 slot 17. This longitudinal slot 17 extends from the free end 16 approximately to the

12 circular bending point 18 of the connection end 10. Through the longitudinal

13 slot 17, the connection end 10 is perpendicular to the spring longitudinal direction 9.

14 arranged transverse direction 19 to form two connection contacts 20,21 is for each conductor 11. The plane of the spring base body 14 is spanned by the spring longitudinal direction 9 and the transverse direction 19. From this plane

&igr;? a tab 22 is bent out towards the bent connection end 10.

is The tab 22 serves as a stop for the bending axis 23 against the

is spring force pivoted connection end 10. In the initial state of the bent

20 At the connection end 10 (Fig.7) the stop tab 22 is approximately in a right

21 Angle to connection end 10.

23 The contact spring 103 is guided along its longitudinal direction 9 from the plug-in side 28

24 of the connector 1 into the insulating housing 102. In the inserted state, i.e. in the assembled state, the contact spring 103 engages behind a

26 Case back 127 molded-on, transverse to the spring longitudinal direction 9 running fi-

27 xiernase 29 (Fig.2, Fig.5). The rear gripping part of the contact spring 103 is designed as a

28 of the plane of the spring base body 114 bent out, with the spring base

29 body 114 is formed with a fixing tab 30 forming an acute angle (Fig. 7). In the assembled state of the contact spring 103, the fixing tab 30 is located in a locking slot 46 that passes through the housing base 127. If appropriate, the

iN.\AN\96233.DOC) 01, April 199S

Patent Attorneys Tergau & Pohl, Nuremberg.'*, .*·. j***;. :***.:!!, ^Page

&igr; Locking shaft 46 for a fitter with the help of a special tool from the outside

2. In this way, the fixing flap 30 can be acted upon and thereby

3 the locking of the contact spring 103 must be released. In the maintenance or repair

4 case, the contact spring 103 is therefore easily replaceable.

6 The contact spring 103 is an electrically conductive metal strip with the strip

7 level or drawing level with the spring base body 114. The contact

8 spring 103 has several, by bending edges 154, 155, 156 separated

9 partial strips. The partial strips are the spring base

10 114, the spring roof 153, a the spring base body 114 with the spring roof 153

11 connecting spring side wall 157 and a connecting plate 158. The rectangular

12 Connection plate 158 is separated from the spring side wall 157 by the transverse 19

13 extending bending edge 156. In the final bending state, the immediately adjacent partial strips separated from one another by a bending edge are always at right angles to one another and thus form a cuboid-shaped spring (Fig. 10, Fig. 11). The connection plate 158 arranged in the area of the contact end 108 is penetrated centrally by a tulip contact 124. Another tulip contact 124 penetrates the spring base body 114 in the area of its contact end 108 facing away from the connection end 10 in the spring's longitudinal direction 9.

21 The spring roof 153 has a lap-shaped roof section which can be bent from its strip plane.

22 pen-like end stop 138 to limit the travel of the conductor end

23 12 in the insertion direction 13. In the final bending state of the contact spring 103, the

24 End stop 138 protrudes in the direction of the spring base body 114 and is arranged at a right angle to the spring roof 153. In the spring longitudinal direction 9 between the

26 end stop 138 and the insertion side 35 for the conductor 11 is the spring roof 153

27 is penetrated by a rectangular actuating slot 139. The insulating housing

28 se 102 is provided with a viewing opening corresponding to the actuating slot 139.

29 tion is enforced.

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Patent Attorneys Tergau & Pohl, Nuremberg.". «&diams;*. ,**. ; .**. ." Page in

&igr; Through the actuating slot 139 a tool, for example the blade of a

2 of a screwdriver. The tool is used to remove the free

3 the 16 of the contact spring 103 is pressed down in the bending direction 15, whereby the

4 The path for the conductor 11 to the end stop is cleared for insertion of the conductor

5 ters 11 into the connector 1. After removing the tool, the

6 Free end 16 against the conductor 11 and holds it firmly in place.

7 the longitudinal direction 9 the actuating slot 139 facing away from the end

8 stroke 138, the spring roof 153 is surrounded by a cylindrical inspection opening 141

9. The test opening 141 is aligned in the final bending state of the contact spring

10 103 with the tulip contact 124 of the spring base body 114 (Fig.11).

11 A test tool not shown here, e.g.

12 a spring pin, insertable into the insulating housing 102 and connected to the

13 Contact pin 107 or contact spring 103 can be electrically contacted. This

14 it is possible to check the functionality of the conductor tracks 6 or more generally

15 electrical quantities on the circuit board 5. The test opening 141

When connector 1 is plugged in, it takes up the particularly high, straight-line

&igr;? Contact pin 107 approximately positively (Fig.7).

19 The contact spring inserted in the spring longitudinal direction 9 into the insulating housing 102

20 of the 103 is supported in the assembled state on an abutment 34. The abutment

21 ger 34 is formed on the housing base 127. The abutment 34 runs transversely to the

22 spring longitudinal direction 9 and thereby limits the spring longitudinal direction 9

23 fenden insertion path of the contact spring 103 into the insulating housing 102. In Fig. 2

24 and in Fig. 5, the contact spring 103 is removed from the plug side 28 of the connector 1

25 into the insulating housing 102. Consequently, the abutment 34 is

26 of the plug-in side 28 facing away from the insertion side 35 for the conductor 11.

28 For an easy solution of the clamp fixation, the insertion side 35 of the insulating

29 housing 102 is penetrated by an assembly opening 45 which is approximately aligned with the connection end 10 in the longitudinal direction 9 of the spring. An assembly tool, not shown here in detail, is inserted through the assembly opening 45, which

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Patent AttorneysTergauS Pohl, Nuremberg,**, .**. »'*. &iacgr; ,**..'* Page 11

&igr; the connection end 10 is pressurized approximately in the insertion direction 13,

2 is pivoted through the connection end 10 against the stop tab 22. With

3 This mounting opening 45 not only makes it easier to loosen the clamping

4 times, but also the clamp fixation itself. The connection end 10 pressure

s assembly tool enables easy insertion of the conductor

6 rendes 12 into the insulating housing 102 without significant effort, since the

7 the force of the connection end 10 cannot be overcome by the conductor 11

8. This is particularly advantageous if the conductor end 12 is not a stable wire,

9 but a flexible wire strand.

11 From the illustration in Fig. 3 it can be seen that each of the longitudinal slots

12 17 two-part connection end 10 of the contact spring 3 two insertion openings 44

13 are assigned.

(N.WN\96233.DOC) 01 April 1996

Patent attorneys Tergau & Pohl, Nuremberg.

96233-8/42 Connectors 46 Locking shaft Plug direction 102 Insulated housing Spring longitudinal direction 103 Contact spring List of reference symbols Connection end 105 Circuit board Director 107 Contact pin Ladder end 108 End of contact 1 Insertion direction 114 Spring base body 4 Bending direction 127 Case back 9 Freedmen 137 Housing top 10 Longitudinal slot 138 End stop 11 Bending point 139 Operating slot 12 Transverse direction 141 Inspection opening 13 Connection contact 147 Contact opening 15 Connection contact 148 Contact opening 16 Stop flap 149 Central longitudinal axis 17 Bending axis 150 Central longitudinal axis 18 Plug-in side 151 Longitudinal slot 19 Fixing nose 152 Longitudinal slot 20 Fixing flap 153 Spring roof 21 Bending axis 154 Bending edge 22 Bending axis 155 Bending edge 23 Abutment 156 Bending edge 28 Introduction page 157 Spring side wall 29 Conductor insulation 158 Connection plate 30 Insertion opening 159 Fixing pin 32 Mounting opening 160 Slotted end 33 161 Pen housing 34 162 Plug direction 35 &agr; angle 40 44 45

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Claims (17)

Patent attorneys Tergau & Pohl, Nuremberg .· · · j;.;.,*.,IJ**. Page &Iacgr; 96233-8/42/13 01.April.1996 &bgr; Claims &bgr; 1. Electrical connector (1) for an element to be electrically contacted, 9 in particular a printed circuit board (105), with an insulating housing (102) 10 - with an insertion opening (44) for receiving and fastening a lead 11 ters(11)and 12 - with a contact opening (147, 148) facing away from the insertion opening (44) as a connection to the element to be contacted, µm characterized by is that a contact spring (103) alone both the conductor (11) in the area of the input 16 guide opening (44) is clamped and the connection part is connected to the 17 animal element. is 2. Connector according to claim 1, 20 characterized by 21 - that the contact spring (103) has two plug contacts for each of the 22 rending element and 23 - that the plug directions (4,162) of the two plug contacts are perpendicular to 24 stand together. 26 3. Connector according to claim 1 or 2, 27 characterized by 28 - that the contact spring (103) in the area of the contact opening (147, 148) is 29 a cylindrical connection opening, 30 - that the opening edge of the connection opening extends into the insulating housing (102) 31 is flanged in the manner of a socket-like tulip contact (124) and (N:\AN\96233.DOC) 01.Apri!1996 Patent Attorneys Tergau & Pohl, Nuremberg ·· ; , ; &iacgr;&iacgr;·&iacgr;·, *..!"*&diams; Page &igr; - that the tulip contact (124) is a plug contact with the 2 Element, in particular with a contact soldered to the circuit board (105) 3 timing pin (107) interacts. 5 4. Connector according to claim 3, 6 characterized by 7 that the tuipe contact (124) is diametrically slotted. 9 5. Connector according to one or more of the preceding claims, 10 characterized by 11 - that the contact spring (103) with a connection end (10) the conductor (11) 12 clamped under spring force in such a way, 13 - that the connection end (10) is supported by a spring base (114) of the contact 14 spring (103) is bent in the manner of a leg of a leg spring is and is - that the connection end (10) with its approximately in the insertion direction (13) of the The conductor (11) is clamped in place at the free end (16) pointing towards the conductor (11). is 6. Connector according to one or more of the preceding claims, 20 characterized by 21 that the connection end (10) is connected by a spring extending in the longitudinal direction (9) 22 the longitudinal slot (17) is divided into two to form two connection contacts 23 (20,21) for each conductor (11). 25 7. Connector according to claim 5 or 6, 26 characterized by 27 a from the plane of the spring base body (114) to the angled 28 closing (10) directed protruding tabs (22) as a stop for the 29 Connection end (10) pivoted against the spring force. 31 8. Connector according to claim 7, (N:\AN\9S233. DOC) 01 April 1996 Patent Attorneys Tergau & Pohl, Nuremberg" &iacgr;&idigr;&idiagr;*&idiagr; !!,!..*.,!"*· Page &igr; characterized by 2 that the stop tab (22) in the initial state of the angled 3 closing end (10) is approximately at a right angle to the connecting end (10). 5 9. Connector according to one or more of the preceding claims, 6 characterized by 7 that the longitudinal direction (9) of the insulating housing (102) 8 pushed contact spring (103) a transversely formed in the insulating housing (102) 9 engages behind the fixing lug (29) extending to the longitudinal direction (9). 11 10. Connector according to claim 9, 12 characterized by 13 that the rear gripping part is a protruding from the plane of the spring base body (114). 14 protruding, forming an acute angle with the spring base body (114) 15 is the fixing tab (30). 17 11. Connector according to one or more of the preceding claims, 18 characterized by 19 that the contact spring (103) is an electrically conductive metal strip with in the 20 strip plane with spring base body (114) inserted. 22 12. Connector according to claim 11, 23 characterized by 24 - that the contact spring (103) consists of at least three, by bending edges 2s (154,155,156) separated partial strips, namely the Fe- 26 the base body (114), a spring roof (153) and a spring base 27 body (114) with the spring roof (153) connecting spring side wall (157) 28 and 29 - that adjacent partial strips are at right angles to each other in the final bending state so as to form a cuboid-shaped box spring. (N:WM96233.DOC) 01, April 1996 Patent Attorneys Tergau & Pohl, Nuremberg* _# · · ; , ; &idigr;&idigr;.&idigr;«. *».!!**· Page t &bull;»&bull;&bull;41 ·» · ·-· ·· &igr; 13. Connector according to claim 12, 2 characterized by 3 that the contact spring (103) as a further partial strip has a bending 4 edge (156) connecting plate (158) separated from the spring side wall (157) 5, which 6 - has a plug contact, in particular a tulip contact (124) and 7 - in the final bending state of the contact spring (103) at right angles to the spring base 8 body (114) and the spring side wall (157). 10 14. Connector according to claim 12 or 13, 11 characterized by 12 that a contact facing away from the connection end (10) in the spring longitudinal direction (9) 13 clocking (108) of the spring base body (114) a plug contact, in particular 14 re tulip contact (124). ie 15. Connector according to one of claims 12 to 15, 17 characterized by ie that the contact spring (103) the conductor (11) between the spring cover (153) and 19 end (10) clamped. 21 16. Connector according to one of claims 12 to 15, 22 characterized by 23 -that the spring roof (153) has a flap-like, bendable from its plane 24 end stop (138) and 25 -that the end stop (138) in the final bending state of the contact spring (103) in 26 Direction towards the spring body (114) protruding at right angles to the spring 27 the roof (153) is arranged. 29 17. Connector according to one of claims 12 to 16, so characterized by iNlAN\9S233.DOC) 01 April 1998 Patent AttorneysTergau & Pohl, Nuremberg ^· · &iacgr;&diams; j !!·!· . *·*&idigr;&idigr;**· Page 1 that the spring roof (153) in the spring longitudinal direction (9) between its end 2 impact (138) and the insertion side (35) by an actuation protection (139) 3 is penetrated for the passage of a the connection end (10) of the contact spring 4 (103) loading tool. (N:\AN\9e233.DOC) 01 April 1996