DE102011051644A1 - Interface connector - Google Patents

Abstract

An interface plug (1) for the electrical connection of a plug (50) to a printed circuit board, comprising: - an interface housing (2) with a planar bearing surface (3) for resting on the printed circuit board and a plug connection (4) provided at the rear with respect to the bearing surface (3) Receiving the plug (50), - a functional space (5) surrounded by the support surface (3) for passing at least one contact (6, 6 '), - at least one first latching means (7) extending from the support surface (3), and at least one of the functional space (5) extending further locking means (8, 8 ').

Description

The present invention relates to an interface plug for the electrical connection of a plug to a printed circuit board according to claim 1 and a system of the plug and the interface plug according to claim 8.

Printed circuit board connector solutions of the generic type, in particular for currents up to 10 amperes for all sorts of electronic applications, in particular with temperatures up to 180 ° C, are subject to the following technical problems.

Overall, the interface should ensure a compact design, but at the same time secure locking and tightness of at least the current-carrying components.

Furthermore, a simple mechanical and stable latching with the printed circuit board is desirable, so that during assembly no structures present on the printed circuit board are damaged.

In addition, a temperature stability of the interface is desirable.

It is therefore an object of the present invention to provide a simple and secure mountable interface connector for the electrical connection of a plug to a circuit board, which should also have a compact design as possible.

The present object is achieved with the features of claim I. Advantageous developments of the invention are specified in the subclaims. All combinations of at least two features specified in the description, the claims and / or the drawings also fall within the scope of the invention. For specified ranges of values, values lying within the stated limits should also be disclosed as limit values and, in any combination, be claimable purely.

The basic idea of the present invention is to combine a catch located in the interior (that is, at a distance from the side edge of the interface plug with a plug-in direction S) of the interface plug with a latch provided on the bearing surface. The internal locking fits optimally in the interface connector, so that a compact design is ensured and in combination with the outer latching results in a stable connection between the interface connector and the circuit board despite the compact design.

According to an advantageous embodiment of the invention it is provided that the further locking means of a, in particular the functional space almost filling, seal with a, in particular parallel to the support surface extending, sealing surface surrounded, in particular enclosed, is. Thus, despite the compact design of the interface connector according to the invention not only a mechanically stable latching, but create a tight connection to the circuit board. By running parallel to the support surface sealing surface a particularly uniform and effective sealing is achieved. Furthermore, results from the design and the case of usable materials high temperature stability.

As far as the seal has a passage opening for receiving the / of the contacts, the sealing is virtually everywhere possible along virtually the entire bearing surface of the interface connector.

By providing a compression gap surrounding the seal for receiving the seal when provided by connecting the interface connector to the circuit board compression, the seal fits when connecting the interface connector to the circuit board, in particular seamless, so that the support surface of the interface housing and the sealing surface a flush and level common in the connected state form.

It is also advantageous to leave the sealing surface in the unconnected state in the direction of the printed circuit board, so that an effective seal is achieved by the compression of the sealing surface in the connected state. It is advantageous if the sealing surface protrudes at least by the maximum or predominantly constant annular width of the compression gap in the non-connected state relative to the support surface.

According to a further advantageous embodiment of the invention, it is provided that the seal consists at least predominantly, in particular completely, of a temperature-resistant sealing material, in particular cellular rubber, in particular at temperatures of -40 ° Celsius to 120 ° Celsius. The temperature resistance applies not only to the sealing material but also to the other materials, so that the entire interface connector can be used for electronic applications with large temperature fluctuations, especially in automotive technology.

Advantageously, it is further provided that the plug is sealingly received in the plug connection, in particular by a / the contact (s) radially surrounding peripheral wall for conditioning at least a, in particular radially extending, sealing lip of the plug. Thus, by the interface connector according to the invention a tightness to both the circuit board and the interface guaranteed.

Features disclosed for the interface connector also apply to the system of connectors and the interface connector claimed according to the invention.

Further advantages, features and embodiments of the present invention will become apparent from the following description of the figures, the claims and the figures. These show in:

1a a perspective view of an embodiment of a support surface of an interface connector according to the invention,

1b a perspective view of the interface connector according to

1a from the opposite side,

1c a sectional view of the interface connector according to FIG 1a .

1d a side view of the interface connector according to 1a .

1e a plan view of the bearing surface of the interface connector according to 1a .

2a a plan view of a plug according to the invention of a system from the interface connector according to 1a and the plug,

2 B a side view of the plug according to 2a and

2c an enlargement of a detail AD 2 B ,

In the figures, identical or equivalent components are identified by the same reference numerals.

The 1a to 1b show an interface connector 1 , which mainly consists of an interface housing 2 with korrespondiereden attachments or mounting parts, which is partially integral with the interface housing 2 are formed.

The in the 1a top side of the interface connector 1 is used for connection to a printed circuit board, with a support surface 3 of the interface housing 2 in a mounted position plan to just rest on the circuit board.

On the opposite side of the interface connector 1 is according to 1b a plug connection 4 at the interface housing 2 integrally formed, in which a plug 50 according to 2a to 2c for electrical connection of the plug 50 can be accommodated on the printed circuit board.

For electrical contacting of electrical connections of the printed circuit board with the plug 50 Two are through the interface connector 1 extending, especially straight, contacts 6 . 6 ' intended. The contacts 6 . 6 ' run in a plug-in direction S and protrude from one side of the circuit board through the support surface 3 formed support level. Plug connection ends the contacts 6 . 6 ' in contrast, within a recording room 14 of the plug connection 4 , The contacts 6 . 6 ' be through in 1e shown in cross-section, extending in the insertion direction S, passage openings 15 . 15 ' clamped in the interface housing 2 held.

The plug 50 indicates one to the plug connection 4 Correspondingly contoured mating face 52 with two plug contacts 53 . 53 ' for electrical contacting of the contacts 6 . 6 ' on. The plug contacts 53 . 53 ' are designed as contact springs. Furthermore, the plug has 50 Overhung locking arms 54 . 54 ' for locking with corresponding locking arms 16 . 16 ' of the interface connector 1 on latching arms 54 . 54 ' are in the recording room 14 arranged.

For sealing the interface connector 1 , in particular the plug connection 4 , is at the plug 50 , especially on the mating face 52 , a sealing lips 51 . 51 ' having sealing ring 55 provided, wherein the sealing lips 51 . 51 ' on the inner circumference of the sealing ring in the circumferential direction are arranged to extend parallel to each other, and that transverse to the insertion direction S. The sealing lips 51 . 51 ' lie in the assembled state of the plug 50 at the interface connector 1 on an outside circumference 13a a peripheral wall 13 of the plug connection 4 at. Also a reverse arrangement, ie on the outer circumference 13a the peripheral wall 13 arranged sealing lips are conceivable according to the invention.

For latching and electrical connection of the interface connector 1 to the circuit board are locking means 7 . 8th . 8th' in the form of locking arms on the to the plug connection 4 arranged opposite side, wherein the latching arms extend in the insertion direction S. The locking means 7 extends from a side edge 17 of the interface housing 2 from the support surface 3 in the direction of insertion S. The locking means 7 is integral with the interface housing 2 educated. The locking means 7 has an outward, ie transversely to the direction of insertion S from the side edge 17 outwardly projecting latch 7r on, which serves for latching with a corresponding recess of the circuit board. The catch 7r therefore indicates the contacts 6 . 6 ' path.

On the opposite side of the contacts 6 . 6 ' to the locking means 7 are the locking means 8th . 8th' arranged in the form of two locking arms, both extending in the insertion direction S, the locking means 8th . 8th' each have locking lugs 8r . 8r ' on, which is approximately to a center or extending in the insertion direction S longitudinal central axis of the interface housing 2 point. Thus, the locking lugs 7r . 8r . 8r ' all in different directions, but especially to one side of the interface connector 1 , and thus provide a secure locking.

The locking means 8th . 8th' are in one of the bearing surface 3 surrounded functional space 5 arranged, while - as described above - the locking means 7 from the support surface 3 at the side edge 17 projects.

The function room 5 becomes laterally by a circumferential paragraph 18 limited, the same time the bearing surface 3 opposite the function room 5 demarcates.

The bearing surface 3 extends from the paragraph 18 up to an outer edge 3a the bearing surface 3 ,

In the function room 5 is still a seal 9 provided, the two recesses 19 . 19 ' for the locking means 8th . 8th' having. Furthermore, the seal points 9 a passage opening 11 for the implementation of the contacts 6 . 6 ' on.

The seal 9 also has a parallel to the support surface 3 arranged sealing surface 10 on, opposite the support surface 3 protrudes in the plug-in direction S in the unassembled state.

When mounting the gasket 9 compressed until the locking means 7 . 8th . 8th' engage in corresponding snap-in receptacles of the circuit board and the sealing surface 10 with the support surface 3 flees.

During the compression of the seal 9 becomes a not mounted state 18 and the paragraph 18 and the seal 9 provided, circumferential compression gap 12 filled by the seal, being volume of the seal 9 so dimensioned is that the seal 9 in the assembled state of the interface connector 1 the compression gap 12 as completely as possible. At the same time, when compressing the gasket 9 during installation also the passage opening 11 and the recesses 19 . 19 ' smaller.

It can be seen very well that in relation to the size of the interface connector 1 very large, effective sealing surface, not only from the sealing surface 10 must exist, but also from the opposite surface of the seal 9 and the perimeter of the seal 9 if this on the paragraph 18 is applied, ensures an effective and safe sealing effect. The seal 9 has the additional function of protecting the locking means 8th . 8th' as well as the contacts 6 . 6 ' and also serves to dampen vibrations. There is a very high tightness not only between the plug and the interface connector 1 but also between the interface connector 1 and the circuit board reached.

Due to the straight plug geometry, the plug 50 simultaneously with the interface connector 1 and the circuit board are mounted in a continuous movement in the insertion direction S, allowing the assembly of the connector 50 with the interface connector 1 and the circuit board is very simple. At the outer edge 3a and their plotting on the PCB is also immediately recognizable, whether the interface connector 1 has been properly mounted.

LIST OF REFERENCE NUMBERS

1

Interface connector

2

Interface package

3

bearing surface

3a

outer edge

4

connector

5

function room

6, 6 '

contacts

7

latching means

7r

locking lug

8, 8 '

latching means

8r, 8r '

locking lug

9

poetry

10

sealing surface

11

Through opening

12

compression gap

13

peripheral wall

13a

outside perimeter

14

accommodation space

15, 15 '

Through openings

16, 16 '

locking arms

17

margin

18

paragraph

19, 19 '

recesses

50

plug

51, 51 '

sealing lip

52

mating face

53, 53 '

plug contact

54, 54 '

locking arms

55

seal

S

plug-in direction

Claims (8)

Interface connector ( 1 ) for the electrical connection of a plug ( 50 ) to a printed circuit board with: - interface housing ( 2 ) with a flat bearing surface ( 3 ) to rest on the circuit board and a back to the support surface ( 3 ) provided plug connector ( 4 ) to the plug ( 50 ), - one of the support surface ( 3 ) surrounded functional space ( 5 ) to carry out at least one contact ( 6 . 6 ' ), - at least one of the bearing surface ( 3 ) extending first latching means ( 7 ) and - at least one from the functional space ( 5 ) extending further locking means ( 8th . 8th' ). Interface plug according to Claim 1, in which the further latching means ( 8th . 8th' ) of one, in particular the functional space ( 5 ) almost filling, seal ( 9 ) with a particular parallel to the support surface ( 3 ), sealing surface ( 10 ), in particular enclosed, is. Interface plug according to Claim 2, in which the seal ( 9 ) a passage opening ( 11 ) for receiving the contact (s) ( 6 . 6 ' ) having. Interface plug according to one of claims 2 or 3, in which a seal ( 9 ) surrounding compression gap ( 12 ) for receiving the seal ( 9 ) by connecting the interface connector ( 1 ) provided on the circuit board compression is provided. Interface plug according to one of Claims 2 to 4, in which the sealing surface ( 10 ) is unconnected state protruding toward the circuit board. Interface plug according to one of Claims 2 to 5, in which the seal ( 9 ) consists at least predominantly, in particular completely, of a, in particular at temperatures of -40 ° Celsius to 120 ° Celsius, temperature-resistant sealing material, in particular cellular rubber. Interface plug according to one of the preceding claims, in which the plug ( 50 ) sealing in the plug connection ( 4 ), in particular by a contact (s) ( 6 . 6 ' ) radially surrounding peripheral wall ( 13 ) for conditioning at least one, in particular radially extending, sealing lip ( 51 . 51 ' ) of the plug ( 50 ), in particular on the outer circumference of the peripheral wall ( 13 ). System made of plug ( 50 ) and interface connectors ( 1 ) according to any one of the preceding claims.

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