EP3018761B1 - Circuit board connecting terminal - Google Patents

Description

The invention relates to a printed circuit board terminal according to the preamble of patent claim 1.

Circuit board connection terminals are known with a arranged in a housing clamping spring for clamping fixing an inserted into the housing electrical conductor. Furthermore, a contact element is arranged within the housing, which is in electrically conductive connection with a connecting element arranged outside the housing. The clamping spring of the known printed circuit board connection terminals presses the electrical conductor against the contact element. About the connection element, which can be either soldered directly to a circuit board or plugged by a pin on a circuit board, the electrically conductive connection between the inserted electrical conductor and the circuit board can be made. In known circuit board connection terminals, the contact element is usually a complex stamped and bent part with a plurality of mutually bent surfaces, which in particular also supports an abutment leg of the clamping spring within the housing.

From the WO 00/31830 is a printed circuit board terminal having a housing having an inner wall and an outer wall, a clamping spring, a disposed within the housing contact element and a connection element arranged outside the housing, are electrically conductively connected to the contact element and the connection element and the contact element surface on the inner wall the housing is arranged adjacent.

The DE 10 2006 016 364 A1 discloses a terminal block for connecting electrical conductors.

The US 5,535,513 discloses a method of making surface mountable connectors.

From the US 5,453,028 A and the DE 10 2012 110 895 A1 are printed circuit board terminals having a housing having an inner wall and an outer wall, a clamping spring, a disposed within the housing contact element and a connection element arranged outside the housing, in which the contact element and the connection element are electrically conductively connected to each other and in which the contact element surface is arranged on the inner wall and further, the connection element is arranged lying flat against the outer wall.

The object of the invention is to provide a less expensive circuit board terminal.

The object is achieved by a printed circuit board terminal with the features of claim 1.

Advantageous embodiments and further developments of the invention are specified in the dependent claims.

The printed circuit board connection terminal according to the invention with a housing which has an inner wall and an outer wall, a clamping spring, a contact element arranged inside the housing and a connection element arranged outside the housing, wherein the contact element and the connection element are electrically conductively connected to one another, is characterized in that the contact element are arranged flat on the inner wall and the connection element lying flat against the outer wall. The contact element is essentially formed by a single substantially planar surface, which is connected via a connecting element with the connection element, which is likewise designed as a substantially flat surface. An elaborate contact element with many oppositely bent surfaces can thus be omitted, whereby the PCB terminal is cheaper to produce.

Advantageously, the contact element and the connecting element are at least partially, preferably largely or even completely, arranged in mutually parallel planes, which further simplifies the production.

According to the invention, the contact element rests on a single side wall of the housing and / or the connection element on a single side wall of the housing, wherein the contact element and the connection element bear against the same side wall but on opposite surfaces of the side wall of the housing. This results in a particularly space-saving, compact and therefore inexpensive construction.

According to a particularly advantageous embodiment of the invention, the contact element and the connection element are integral connected with each other. This further simplifies the manufacturing process.

The contact element and the connection element can advantageously be designed as a stamped and bent element, wherein in particular fewer bending processes are required in comparison to conventional contact elements with connecting elements arranged thereon.

An advantageous development of the invention provides that on the contact element a tab, a projection, a nose or other raised contour or a recess is arranged, whereby the electrical contact between an inserted electrical conductor and the contact element can be improved and the wire extraction force can be increased ,

Preferably, the contact element and / or the connection element are formed by a metallic surface applied to the housing. Such a metallic surface can be produced, for example, galvanically, chemically, by painting or by applying a thin metal foil, for example by sticking. Such metallic surfaces are firmly connected to the housing, whereby a loss of security is possible.

Preferably, the connection element and the contact element form legs of a substantially U-shaped or substantially Z-shaped element, which can be easily manufactured.

A preferred embodiment of the invention provides that the housing is open to one side, this side being coverable by a lid, and wherein the electrically conductive Connection between the contact element and the connection element is guided through a slot between the housing and the lid. Such a slot is particularly easy and inexpensive to manufacture. The open housing also allows for easy attachment of the contact element before the housing is closed by the lid.

Advantageously, the lid is formed by an adjacent housing of another printed circuit board connection terminal. This is the case, in particular, in the case of stackable printed circuit board connection terminals and enables a simple and cost-effective space-saving arrangement of a plurality of printed circuit board connection terminals next to one another.

The housing has in particular an insertion opening for an electrical conductor to be connected. In this case, advantageously, the clamping spring is positioned relative to the insertion opening, that upon insertion of the electrical conductor through the insertion opening, the clamping spring against the spring force is fixed and clamped with further insertion of the electrical conductor of the electrical conductor through the clamping leg of the clamping spring.

Preferably, the housing has an actuating element with which the clamping spring can be pivoted against the spring force. Such an actuating element allows in particular a simple release of the clamping fixation of the electrical conductor.

Preferably, the clamping spring is made of a metal, on the one hand to allow sufficient stability of the clamping spring, on the other hand, however, to ensure a cost-effective production of the clamping spring.

A solder pin can advantageously be arranged in one piece on the connection element in order to make possible a through hole technology processable embodiment of the circuit board connection terminal.

An alternative preferred embodiment for providing a plug-in printed circuit board terminal according to the invention provides a socket in which at least one printed circuit board terminal is inserted, wherein the socket has a female connector housing which is open to one side, and which has at least one metallic contact, which a first portion and a second portion, wherein the first portion is disposed within the female connector housing and rests with the printed circuit board terminal connected to the terminal of the PCB terminal and wherein the second portion is guided through an opening of the female connector housing to the outside and forms a solder connection for a printed circuit board. The solder connection can be designed as a soldering surface or solder pin and soldered in accordance with surface or Durchlochlöttechnik (SMT or THT) with the circuit board. By inserting a circuit board terminal with a soldering surface in such a connector socket can be provided in a simple manner, a plug-in PCB terminal.

An advantageous development of the connection socket provides that a plurality of metallic contacts are arranged in the connector housing and a plurality of advantageously juxtaposed PCB terminal blocks according to the invention in the connector socket are inserted, each of the PCB terminal blocks is contacted by a respective metallic contact. This makes it possible in a simple manner to design several directly solderable printed circuit board connection terminals as plug-in PCB terminal blocks.

According to a particularly preferred embodiment of the invention, the first portion is resiliently designed to allow a secure electrically conductive contact between the metallic contact of the socket and the connection element of the PCB terminal.

A particularly preferred embodiment of the invention provides that the first portion is formed spherical, in order to be able to form a secure contact.

Preferably, the opening through which the second portion of the metallic contact passes outwardly is located either in the back side opposite the open side or in a side wall adjacent to the open side to allow for different relative orientations between the board and the mating direction.

Particularly preferably, an opening is arranged both in the rear side opposite the open side and in at least one of the side walls adjoining the open side, through which the second section of the metallic contact can be guided outwards in order to allow for different relative orientations between the printed circuit board, on which the socket is mounted, and the direction of insertion to be able to dispense with two different embodiments of the housing of the connector socket.

Preferably, the circuit board connection terminal in the connection socket can be locked in order to allow a secure fixation.

Advantageously, the socket housing has pins for positioning the circuit board in order to fix the relative alignment between the connection socket and the circuit board.

Figur 1

eine perspektivische Ansicht von mehreren erfindungsgemäßen Leiterplattenanschlussklemmen gemäß einem ersten Ausführungsbeispiel,

Figur 2

einen Schnitt durch eine der Leiterplattenanschlussklemmen gemäß Figur 1,

Figur 3

eine teilweise explodierte Darstellung der aneinander gereihten Leiterplattenanschlussklemmen gemäß Figur 1,

Figur 4

einen Schnitt durch eine alternative Ausführungsform einer erfindungsgemäßen Leiterplattenanschlussklemme,

Figur 5

einen Schnitt durch eine weitere alternative Ausführungsform einer erfindungsgemäßen Leiterplattenanschlussklemme,

Figur 6

eine teilweise explodierte Darstellung einer weiteren Ausführungsform von erfindungsgemäßen Leiterplattenanschlussklemmen,

Figur 7

einen Schnitt durch eine der Leiterplattenanschlussklemmen gemäß Figur 6 im zusammengesetzten Zustand,

Figur 8

ein Ausführungsbeispiel einer erfindungsgemäßen Anschlussbuchse,

Figur 9

eine explodierte Darstellung der Anschlussbuchse gemäß Figur 8,

Figur 10

eine perspektivische Ansicht eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Anschlussbuchse,

Figur 11

eine explodierte Darstellung der Anschlussbuchse gemäß Figur 10, und

Figur 12

die Anschlussbuchse gemäß Figur 10 mit einem einzuführenden Leiterplattenanschlussklemmenblock mit mehreren Leiterplattenanschlussklemmen.

The invention will be explained in detail with reference to the following figures. Show it:

FIG. 1

a perspective view of a plurality of printed circuit board connection terminals according to the invention according to a first embodiment,

FIG. 2

a section through one of the PCB connection terminals according to FIG. 1 .

FIG. 3

a partially exploded view of the juxtaposed PCB terminals according to FIG. 1 .

FIG. 4

a section through an alternative embodiment of a circuit board terminal according to the invention,

FIG. 5

a section through a further alternative embodiment of a circuit board terminal according to the invention,

FIG. 6

a partially exploded view of another embodiment of printed circuit board connection terminals according to the invention,

FIG. 7

a section through one of the PCB connection terminals according to FIG. 6 in the assembled state,

FIG. 8

An embodiment of a connector according to the invention,

FIG. 9

an exploded view of the socket according to FIG. 8 .

FIG. 10

a perspective view of another embodiment of a connector according to the invention,

FIG. 11

an exploded view of the socket according to FIG. 10 , and

FIG. 12

the connection socket according to FIG. 10 with a PCB terminal block to be inserted with multiple PCB terminals.

The FIGS. 1, 2 and 3 show various views of an embodiment of a printed circuit board terminal 10. The PCB terminal 10 has a housing 20 having an inner wall 20a and an outer wall 20b. The housing 20 has a rear wall 21a, to which preferably perpendicular four side walls 21b, 21c, 21d, 21e adjoin. The rear wall 21a opposite side is open and can be covered by a cover 28. Alternatively, the open side can also be covered by an adjacent housing 20, in particular its rear wall 21a. This results in an attachable printed circuit board terminal 10. To connect the side by side arranged housing 20 together To be able to, a plurality of recesses 24 are arranged on the housing 20 on the outer wall 20b of the rear wall 21a, while at the open end faces of the housing 20 a plurality of pins 25 are arranged. The housings 20 can thus be lined up in such a way that the recesses 24 of one of the housings 20 receive the pins 25 of a further housing 20. The housing 20, which is located on the side at which no further printed circuit board connection terminal 10 is to be arranged, can be closed with the cover 28.

In the housing 20 of the PCB connection terminal 10, an insertion opening 22 is arranged, through which an electrical conductor 50 can be inserted into the housing 20. The insertion opening 22 is located, for example, in the side wall 21b.

Inside the housing 20, a clamping spring 30 is arranged. The clamping spring 30 has an abutment leg 32 and a clamping leg 34, which are arranged in particular at an acute angle to each other, so that the clamping spring 30 is formed overall V-shaped. The clamping spring 30 may be fixed in the housing 20 in a suitable manner, for example by a projection 29 which is arranged in the interior of the housing 20, for example on the rear wall 21a such that between the projection 29 and one or two of the side walls 21b, 21c, 21d, 21e a fixing slot is formed. The clamping spring 30 rests with the abutment leg 32 on one of the side walls, for example the side wall 21c, directly on the inner wall 20a. A free end 34 a of the clamping leg 34 of the clamping spring 30 projects into the interior of the housing 20 such that the inserted through the insertion opening 22 into the housing 20 electrical conductor 50 pivot the clamping leg 34 against the spring force and then can be fixed by clamping by the free end 34a. In order to solve the clamping fix again, in one embodiment, an actuator 27 may be inserted into an actuating opening 23 of the housing 20 so that upon pressure on the actuating element 27 of the clamping leg 34 is pivoted back against the spring force of the clamping spring 30 to the clamped fixed electrical conductor 50 release again.

Within the housing 20, a contact element 40 is arranged, which is arranged lying flat against the inner wall 20a. The contact element 40 is designed, in particular, as a substantially rectangular and essentially flat surface and lies in particular only on one of the side walls, for example the side wall 21e. The contact element 40 can, as in the in FIG. 2 illustrated embodiment have a small extended tab 40a. The electrical conductor 50 is pressed by the clamping leg 34 of the clamping spring 30 against the contact element 40. The electrically conductive contact is made by contacting the conductor 50 with the contact element 40 and can be improved by the tab 40a. The tab 40a can also increase the wire extraction force. Apart from the tab 40a or another nose, contour, a projection or a recess, which may be formed as an alternative to the tab 40a on the contact element 40, the contact element 40 is planar and lies in particular only on one of the side walls 21b, 21c, 21d, 21e. In particular, the contact element 40 has no angled surfaces, which are aligned parallel to the rear wall 21a and to the side wall 21c opposite the side wall 21c, against which the abutment leg 32 of the clamping spring 30 abuts, and thus in particular has no cage-like structure.

The housing 20 further has a connection element 42, which is formed flat against the outer wall 20b of the housing 20. A soldering pin can be arranged on the connecting element 42, but the connecting element 42 is advantageously designed as a flat surface, which is aligned in particular parallel to the plane of the contact element 40 and advantageously arranged on the same side wall 21e as the contact element 40. About the connection element 42, the electrically conductive contact can be made to a circuit board.

The connecting element 42 and the contact element 40 are electrically conductively connected to one another, in particular by means of a connecting element 44. In which in the FIGS. 1 to 3 illustrated embodiment, the connecting element 44 is formed substantially perpendicular to the planes of the contact element 40 and the connecting element 42, so that in particular a U-shaped element 46 results. Such a U-shaped element 46 can be pushed onto the side wall 21e such that the contact element 40 comes to rest on the inner wall 20a and the connection element 42 on the outer wall 20b of the side wall 21e. In order that the housing 20 can be covered by the cover 28 or an adjacent housing 20, the height of the side wall 21e is advantageously reduced such that between the housing 20 and the cover 28 or the adjacent housing 20 in the area in which the U-shaped element 46 is pushed onto the side wall 21e, a slot 49 is formed, in which the connecting element 44 comes to rest. The contact element 40 and the connection element 42 are in this case arranged, in particular lying opposite one another, on the side wall 21e. The free ends of the contact element 40 and the connection element 42, which of have the connecting element 44 facing away, have in the arranged on the housing 20 state in the direction of the rear wall 21a.

FIG. 4 shows a further embodiment of a printed circuit board terminal 10, which differs from the in the FIGS. 1 to 3 illustrated embodiment in the geometry of the contact element 40, the connection element 42 and the connecting element 44 differs. The contact element 40 is again formed apart from the tab 40a or another contour to increase the Drahtauszugskraft as a flat surface, which rests against the inner wall 20a of the side wall 21e. The connecting element 42 is arranged flat on the outer wall 20b of the same side wall 21e, but this time preferably not opposite to the contact element 40. The contact element 40 and the connecting element 42 are connected to one another via the connecting element 44 such that an approximately S- or Z-shaped Element 48 results. The connecting element 44 comes to lie in a slot 49a, which is arranged in the side wall 21e. The slot 49a has an extension, in particular in the direction perpendicular to the rear wall 21a, which is greater than the extent of the slot 49 perpendicular to the rear wall 21a of the in the FIGS. 1 to 3 illustrated embodiment. The extent of the slot 49a in the direction parallel to the side wall 21e, in particular parallel to the insertion direction of the electrical conductor 50, corresponds to the thickness of the contact element 40 and the connecting element 44. In this embodiment, the free end of the contact element 40 points away from the connecting element 44 to the side wall 21d, while the free end of the terminal member 42 facing away from the connecting member 44 faces the side wall 21b.

FIG. 5 shows a further embodiment of the circuit board terminal 10, which differs from the in FIG. 4 illustrated embodiment by the geometry of the contact element 40, the connection element 42 and the connecting element 44 differs. The contact element 40 and the connecting element 42 form with the connecting element 44, in turn, a U-shaped element 46, which, however, is inserted into a slot 49b of the side wall 21e in such a way that the free ends of the contact element 40 and the connecting element 42, which of the connecting element 44th have away, both to one of the side wall 21e adjacent side wall, in particular the side wall 21d point. As in particular in the FIG. 5 illustrated embodiment, the surfaces of the contact element 40 and the connection element 42 does not necessarily have the same size or the legs of the U-shaped element 46 is not necessarily equal length.

In the examples described above, the contact element 40, the connecting element 42 and the connecting element 44 as a separate component, in particular as a one-piece stamped and bent part, formed, which can be pushed onto the side wall 21 e.

Alternatively, the contact element 40, the connection element 42 and the connection element 44 may be formed by a metallic surface applied to the housing 20, as in FIGS FIGS. 6 and 7 which show a further embodiment of a printed circuit board connection terminal 10. Such a metallic surface may be formed as a molded interconnected device (MID). Such a metallic surface can be produced, for example, galvanically, chemically, by painting or by application, for example by gluing, a thin metal foil. Such a metallic Surface may have analogous geometries as in the previously described embodiments. The in the FIGS. 6 and 7 illustrated geometry is particularly similar to that in the FIGS. 1 to 3 represented geometry.

Instead of the issued flap 40a according to the in FIGS. 1 to 3 In the embodiment shown, the contact element 40 in the in FIGS. 6 and 7 illustrated embodiment, a metallized edge 40b, which is formed either by applying additional metallic material or by a pre-formed in the side wall 21e nose, which is coated with metal.

The FIGS. 8 and 9 show various views of a connector socket 60, in which PCB terminal blocks 10 according to the described embodiments or other alternatives can be used. The connection socket 60 has a connection socket housing 70 which has a rear wall 71a and four side walls 71b, 71c, 71d, 71e arranged substantially perpendicular to the rear wall 71a. The female connector housing 70 is open to the opposite side of the rear wall 71a.

The socket housing 70 has at least one, advantageously a plurality, metallic contacts 80, each having a first portion 81 and a second portion 82. The metallic contact 80 is arranged such that the first portion is disposed within the female connector housing 70 and the second portion 82 is led out through an opening 72a, 72b and forms a solder pin for a printed circuit board. The female connector housing 70 has at least for each of the metallic contacts 80 an opening 72a, 72b which extends either in the rear wall 71a or one of the side walls, for example the side wall 71b. Advantageously, an opening 72a for each metallic contact 80 is disposed in both the rear wall 71a and an opening 72b in the side wall 71b to provide the metallic contact, depending on the application and desired orientation of the mating direction relative to the circuit board on which the receptacle housing 70 is mounted 80 in the desired opening 72a, 72b to use.

In the in the FIGS. 8 and 9 In the illustrated embodiment, the metallic contacts 80 are inserted into the openings 72b disposed in the side wall 71b. The first portion 81 is in particular resilient and may preferably be formed crowned.

In order to fix the connection socket 60 on a printed circuit board in a desired position, the socket housing 70 advantageously has one or more pins 75.

In the Figures 10 . 11 and 12 is the female connector housing 70 according to the FIGS. 8 and 9 shown, in which the metallic contacts 80 are used instead of in the side wall 71b in the rear wall 71a. The concrete geometric shape of the metallic contacts 80 is adapted accordingly, but the metallic contacts 80 are in turn arranged such that the first portion 81 is disposed inside the female connector housing 70, while the second portion 82, which forms a solder pad for a printed circuit board and in particular with this is solderable, protruding from the socket housing 70.

FIG. 12 shows how a block of a plurality of printed circuit board connection terminals 10 according to the invention, which are in particular strung together, are insertable into the socket housing 70 and the terminal elements 42 can be contacted resiliently by the first sections 81 of the metallic contacts 80. The printed circuit board connection terminals 10 can latch via latching lugs 26 into latching recesses 76 of the connection socket housing 70. By inserting the printed circuit board connection terminals 10 according to the invention, which have flat connection elements 42 which can be soldered directly onto the printed circuit board, into the connection socket housing 70, the printed circuit board connection terminals 10 can be designed as a pluggable embodiment without any other modification.

LIST OF REFERENCE NUMBERS

10

PCB terminal

20

casing

20a

inner wall

20b

outer wall

21a

rear wall

21b

Side wall

21c

Side wall

21d

Side wall

21e

Side wall

22

insertion

23

actuating opening

24

recess

25

spigot

26

locking lug

27

jig

28

cover

29

head Start

30

clamping spring

32

contact leg

34

clamping leg

34a

free end

40

contact element

40a

flap

40b

edge

42

connecting element

44

connecting member

46

U-shaped element

48

Z-shaped element

49

slot

49a

slot

49b

slot

50

electrical conductor

60

socket

70

Socket housing

71a

rear wall

71b

Side wall

71c

Side wall

71d

Side wall

71e

Side wall

72a

opening

72b

opening

75

spigot

76

recess

80

metallic contact

81

first section

82

second part

Claims (22)

1. Printed circuit board terminal (10), comprising a housing (20) which has an inner wall (20a) and an outer wall (20b), a clamping spring (30), a contact element (40) arranged inside the housing (20), and a connecting element (42) arranged outside the housing (20), wherein the contact element (40) and the connecting element (42) are conductively connected to one another, wherein the contact element (40) is arranged flush with the inner wall (20a) and the connecting element (42) is arranged flush with the outer wall (20b), characterised in that the contact element (40) lies flush on one single side wall (21e) of the housing (20) and/or the connecting element (42) lies flush on a single side wall (21e) of the housing (20), wherein the contact element (40) and the connecting element (42) preferably lie on the same side wall (21e) of the housing (20).
2. Printed circuit board terminal according to claim 1, characterised in that the contact element (40) and the connecting element (42) are arranged at least partially, and preferably largely or completely, in planes which are arranged parallel to one another.
3. Printed circuit board terminal according to one of the preceding claims, characterised in that the contact element (40) and the connecting element (42) are integrally connected to one another.
4. Printed circuit board terminal according to one of the preceding claims, characterised in that the contact element (40) and the connecting element (42) are designed as punched/bent elements.
5. Printed circuit board terminal according to one of the preceding claims, characterised in that a strap (40a), a projection, a lug, or another raised contour, or a depression, is arranged on the contact element (40).
6. Printed circuit board terminal according to one of the preceding claims, characterised in that the contact element (40) and/or the connecting element (42) are formed by a metallic surface attached to the housing (20) .
7. Printed circuit board terminal according to claim 6, characterised in that the metallic surface is generated galvanically, chemically, by painting, or by applying a thin metal film, for example by glueing.
8. Printed circuit board terminal according to one of the preceding claims, characterised in that the connecting element (42) and the contact element (40) form legs of a U-shaped element (46) or a Z-shaped element (48).
9. Printed circuit board terminal according to one of the preceding claims, characterised in that the housing (20) is open to one side, wherein this side can be covered by a cover (28), and wherein the electrically conductive connection between the contact element (40) and the connecting element (42) is guided through a slot (49, 49a, 49b) between the housing (20) and the cover (28).
10. Printed circuit board terminal according to claim 9, characterised in that the cover (28) is formed by an adjacent housing (20) of a further printed circuit board terminal (10).
11. Printed circuit board terminal according to one of the preceding claims, characterised in that the housing (20) has an insertion opening (22) for an electrical conductor (50) to be connected.
12. Printed circuit board terminal according to one of the preceding claims, characterised in that the housing (20) has an actuating element (27), by means of which the clamping spring (30) can be pivoted against the spring force.
13. Printed circuit board terminal according to one of the preceding claims, characterised in that the clamping spring (30) is made of a metal.
14. Printed circuit board terminal according to one of the preceding claims, characterised in that a solder pin is arranged, advantageously integrally, on the connecting element (42).
15. Connecting socket (60) comprising at least one printed circuit board terminal (10) according to one of the preceding claims, characterised in that the connecting socket (60) has a connecting socket housing (70) which is designed to be open to one side, and which has at least one metal contact (80) which has a first section (81) and a second section (82), wherein the first section (81) is arranged inside the connecting socket housing (70) and, when a printed circuit board terminal (10) is inserted, lies flush on the connecting element (42) of the printed circuit board terminal (10), wherein the second section (82) is guided outwards through an opening (72a, 72b) of the connecting socket housing (70) and forms a solder connection for a printed circuit board.
16. Connecting socket according to claim 15, characterised in that a plurality of metal contacts (80) are arranged in the connecting socket housing (70), and a plurality of printed circuit board terminals (10), preferably arranged in a row, according to one of claims 1 to 15, can be inserted into the connecting socket (60), wherein each printed circuit board terminal (10) is contacted by a respective metallic contact (80).
17. Connecting socket according to one of claims 15 or 16, characterised in that the first section (81) is resilient.
18. Connecting socket according to claim 15, characterised in that the first section (81) is spherical.
19. Connecting socket according to one of claims 15 to 18, characterised in that the opening (72a, 72b) through which the second section (82) of the metallic contact (80) is guided outwards is arranged either in the rear wall (71a) lying opposite the open side, or in a side wall (71b, 71c, 71d, 71e) adjoining the open side.
20. Connecting socket according to one of claims 15 to 19, characterised in that both in the rear wall (71a) lying opposite the open side and also in at least one of the side walls (71b, 71c, 71d, 71e) adjoining the open side there is arranged a respective opening (72a, 72b) through which the second section (82) of the metallic contact (80) can be guided outwards.
21. Connecting socket according to one of claims 15 to 20, characterised in that the printed circuit board terminal (10) can be latched in the connecting socket.
22. Connecting socket according to one of claims 15 to 21, characterised in that the connecting socket housing (70) has pins (75) for positioning on the printed circuit board.

Images