WO2015132062A1

WO2015132062A1 - Connection arrangement, method for producing a connection arrangement, and electric device comprising a connection arrangement

Info

Publication number: WO2015132062A1
Application number: PCT/EP2015/053005
Authority: WO
Inventors: Richard Gueckel; Michael Schoenfeld; Markus Kroeckel
Original assignee: Robert Bosch Gmbh
Priority date: 2014-03-05
Filing date: 2015-02-12
Publication date: 2015-09-11
Also published as: DE102014204051A1

Abstract

The invention relates to a connection arrangement (100) between a connection plug element (1) and a circuit carrier (5) in an electric device, comprising multiple plug connection elements (10; 10b; 10c; 10d; 10e), in particular plug connection elements which are arranged in parallel, said plug connection elements having substantially linear end portions (11; 11e) which are designed to be plugged into a respective receiving opening (6) of the circuit carrier (5), thereby forming an electrically conductive connection. According to the invention, guide means (20) which are in contact with the end portions (11; 11e) are provided in order to align the end portions (11; 11e) into the receiving openings (6).

Description

_

Description Connecting arrangement, method for producing a connection arrangement and electrical device with a connection arrangement

PRIOR ART The invention relates to a connection arrangement between a

Connection plug body and a circuit carrier in an electrical device according to the preamble of claim 1. Furthermore, the invention relates to a

Method for producing a connection arrangement according to the invention as well as an electrical device with a device according to the invention

Connection arrangement.

A connection arrangement according to the preamble of claim 1 is already known from practice. It is used for example in switching or control devices in motor vehicles, wherein the switching or control device is electrically contacted with a harness connector of the motor vehicle. For this purpose, the switching or control device on a housing in the interior of a

Circuit carrier, usually in the form of a printed circuit board, is arranged. To make contact with the electrical circuit, a connection plug body made of plastic and produced by injection molding is provided, in which partial sections of plug connection elements are provided by the material of the plug connection element

Connector body are molded around. The formed as stamped / bent parts, a rectangular cross-section having plug connection elements are disposed within the housing of the electrical device in through holes of the circuit substrate and usually soldered to this. For mounting or for pressing the at least substantially rectilinearly formed end portions of the connector elements in the

Through openings, the plug connection elements on the side facing away from the passage openings on Einpressschultern, which protrude laterally from both sides of the connector connection elements. By means of a

Comb-like press-fitting tool which engages between the mutually parallel plug connection elements and on the

Einpressschultern acts, which is used for pressing in the end sections of the Plug connection elements in the through holes of the circuit substrate required press-in force transmitted to the connector elements. The end sections of the plug connection elements which face the through openings of the circuit carrier are usually bevelled or provided with a tip which permits the insertion or centering of the end sections into the end sections

Through openings easier. It is essential in this context that the centering of the

End portions of the connector elements takes place, but essentially only a transmission of the required press-in forces. In addition, depending on the tolerance position or mounting accuracy of the press tool if necessary

Transverse forces are generated on the connector elements, which adversely affect the centering of the end portions of the connector elements in the through holes. The problem of centering the

Plug connection elements to the through holes in the circuit carrier is further complicated by the fact that the trend is towards reducing the distance between the connector elements and to reduce their (rectangular) cross-sections. One solution to solve the problem is to produce the components (connector terminals) with increased accuracy and lower tolerances. However, this is associated with an increased cost from an economic point of view.

Disclosure of the invention

Based on the illustrated prior art, the present invention seeks to provide a connection arrangement between a

Terminal connector body and a circuit substrate in an electrical device according to the preamble of claim 1 such that a safer or improved centering of the receiving openings

(Through holes) of the circuit carrier cooperating

End portions of the connector elements is achieved with economic manufacturability of the connector elements. This object is achieved in a connection arrangement with the features of claim 1, characterized in that standing with the end portions of the connector elements in contact guide means for aligning the end portions in the

Receiving openings of the circuit substrate are provided. It is thus according to the invention the way followed, while maintaining usual tolerances "

Accuracies in the manufacture of the connector elements and thus without increased costs centering the end sections of the

Improve connector elements by providing guide means, the end portions of the receiving openings in

Align circuit carrier.

Advantageous developments of the connection arrangement according to the invention are listed in the subclaims.

In a first structural embodiment of the guide means is

suggested that the guide means as a perpendicular to the

Plug connection elements arranged through holes for the

Plug connector elements having positioning are formed, which consists at least in the region of the passage openings of an electrically non-conductive material, and that the positioning in the

Plug connection elements is arranged axially fixable. Such a design of the guide means provides a guide means which remains in the electrical device after the formation of the connection arrangement between the plug connection elements and the receiving openings of the circuit carrier. It is characterized by the electrically non-conductive material of

Positioning foil achieved that the connector elements are electrically isolated from each other. Such a training of

Guide means allows a particularly close arrangement of

Plug connection elements to each other, as is excluded by the positioning foil electrical contacting of the connector elements. It is thus a particularly high density of the arrangement of

Achieved connector connector elements.

In a further development of the last-mentioned proposal, it is provided that the passage openings of the positioning between Einpressschultern and

Holding portions of the connector elements are fixed, that the

Plug connection elements at least in the region of the through holes of the positioning a rectangular cross section and the

Through holes are formed slit-shaped, and that the material of the positioning film in passing through the end portions of

Plug connection elements elastically or plastically expandable. In an alternative embodiment of the guide means, it may be provided that the guide means are formed as a positioning plate, and that the

Positioning plate has extensions for positive and / or non-positive engagement with the connector elements.

In a further development of the suggestion made last, it is provided that the extensions and / or the positioning plate have first centering surfaces which, with counteracting second centering surfaces on the press-in shoulders of the

Interconnect plug connection elements. This is a particularly good and accurate centering of the connector elements to the

Positioning and thus allows the receiving openings of the circuit substrate.

To limit the Einpresstiefe the end portions in the receiving openings of the circuit substrate, it may be provided that the positioning plate on the circuit carrier associated side resiliently formed

Having support means for the circuit carrier.

In an alternative embodiment of the projections on the positioning plate, it is also possible that the extensions cooperate with formed in the region of the connector elements receptacles into which the projections are latched.

In another alternative embodiment of the projections, it may be provided that the extensions in openings formed in the holding sections extend in a direction perpendicular to the extension of the plug connection elements

Direction, preferably with game, are insertable.

It is very particularly preferred in all embodiments with projections or the like formed guide means when the positioning plate is made of plastic and is designed as an injection molded part. This allows a relatively inexpensive and highly accurate manufacture of the positioning enable that due to their material no short circuits or electrical

Compounds in the manufacture of the connection arrangement allows.

In a fundamentally alternative design of the guide means, it can also be provided that the guide means at least one in the longitudinal direction Compared to other connector terminal elements on the side facing the circuit substrate extended connector element.

Background of this proposal is that by a corresponding tolerancing or dimensioning of the extended connector element, a centering of the remaining connector elements can be done through the receiving openings.

In a further development of the alternative proposal, it is provided that a plurality of extended connector connection elements are provided, and that the

extended plug connection elements are arranged in edge or corner regions of an arrangement consisting of a plurality of plug connection elements. Such a design creates an optimized centering or orientation of the plug connection elements to the receiving openings in the circuit carrier.

In turn, in a fundamentally alternative embodiment of the invention, it can be provided that the guide means comprise an extension formed on a press-in tool, which extends between two adjacent ones

Einpressschultern two plug connection elements is insertable, wherein the extension is preferably formed on the side facing the press-in shoulders wedge-shaped. Such a solution has the particular advantage that on the individual parts of the connection arrangement no constructive

Changes must be made, and that additional costs may be incurred only by slightly increased tooling costs.

The invention also includes a method for producing a

According to the invention, the method comprises the following steps: First, a plug connection body is formed by partially encapsulating a multiplicity of plug connection elements by means of plastic. Subsequently, contacting of guide means with the connector terminals is on the one

Circuit carrier facing side instead. Last will be the

Plug connection elements axially pressed into receiving openings of the circuit carrier, wherein the guide means remain on the connection arrangement.

Finally, the invention also encompasses an electrical device, in particular a switching or control device in a motor vehicle, having an inventive device

Connection arrangement. Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing.

This shows in:

Fig. 1 is provided with a plurality of connector elements

Connector body before connecting the

Plug connection elements with a circuit carrier in

perspective view,

Fig. 2 is a view of a plurality of plug connection elements below

Use of a first guide means for centering the end portions of the plug connection elements,

Fig. 3

and

Fig. 4 different guide means for centering

Plug connection elements in a side view,

Fig. 5

and

6 shows a modified plug connection element in front view and a guide means cooperating with the modified plug connection element,

7 shows a partial region of two plug connection elements with a

modified guiding and pressing agents and

Fig. 8 one consisting of a plurality of plug connection elements

Arrangement with extended plug connection elements for centering the plug connection elements to receiving openings of a circuit carrier in front view.

The same elements or elements with the same function are provided in the figures with the same reference numerals. _

In Fig. 1, the components of an inventive

Connecting arrangement 100 between a connector body 1 and a circuit carrier in the form of a printed circuit board 5 shown. The

Connecting arrangement 100 is used in an electrical or electronic device, not shown in the figures, in particular a switching or control device in a motor vehicle. For this purpose, the device has a likewise not shown because known per se housing for receiving the connection assembly 100.

The connector body 1 is made of plastic and is in

Injection molding process. It serves to make electrical contact with an electrical or electronic circuit, not shown, arranged on the printed circuit board 5 by means of a mating plug, in particular by means of a mating plug

Wiring harness plug of the motor vehicle. These are a variety of

Plug connection elements 10 are provided, the area of the

Plastic of the connector body 1 are encapsulated, and on the other hand with end portions 1 1 in, formed in the circuit board 5

Through holes 6 are inserted, which are aligned with the end portions 1 1. In particular, the passage openings 6 as

Through contacts formed with the on the circuit board. 5

arranged circuit are electrically connected, and are soldered after arranging the end portions 1 1 of the connector elements 10 in particular by a solder bath. As can be seen in particular with reference to FIG. 1, two rows 12, 13, each having a multiplicity of plug connection elements 10 arranged next to one another, are provided on the connection plug body 1.

Between the end portions 1 1 of the male connection elements 10 and the through holes 6 in the circuit board 5, a press connection is formed in each case. For this purpose, the end portions 1 1 of the connector elements 10, as can be seen in particular with reference to FIG. 2, in the region in which they are arranged in the installed state within the through-holes 6, formed widened by an embossing process, wherein they have a width A. In contrast, the diameter d of the passage opening 6 is slightly smaller than the width A of the plug connection element 10 in the end portion 1 1. It can also be seen that the end portions 1 1 and the through holes 6 facing end sides of the end portions 1 1 to form a centering "

are beveled or provided with a tip 14, which facilitate the centering of the longitudinal axes 15 of the connector elements 10 to the longitudinal axes 16 of the through holes 6. The pressing of the end portions 1 1 of the connector elements 10 in the

Through holes 6 are made by a relative movement of the end portions 1 1 to the through holes 6 in the direction of the arrow 17 (FIG. 2) by means of a press-fit tool 50 shown in simplified form in FIG

Press-in tool 50, usually with a not shown

Actuator is arranged operatively connected to the movement in the direction of the arrow 17, comprises a block or rod-shaped in the embodiment

formed base body 51, projecting from the projections on the side facing the plug connection elements 10 projections 52. The projections 52, which are shown in sections in FIG. 2, have such a width b that they are arranged with a little play between two adjacent to each other

Plug connection elements 10 can be inserted, wherein between the two connector terminals 10, a mutual distance B is formed. To center or position the end portions 1 1 of

Plug connection elements 10 to the longitudinal axes 16 of

According to the invention, the connection arrangement 100 moreover comprises guide means 20 in the case of passage openings 6 in the printed circuit board 5, in the first embodiment shown in FIG

Embodiment of the invention, the guide means 20 in the form of an electrically non-conductive positioning foil 21, preferably made of a relatively tough plastic material formed. The positioning foil 21 consisting, for example, of XX or YY (please complete) has a thickness s that is, for example, in the range of a few tenths of a millimeter up to one millimeter (O.K. ??). In addition, in the positioning film 21 corresponding to the arrangement of the hole pattern of the through holes 6 in the circuit board 5, a plurality of slots 22 and through holes formed through which the end portions 1 1 of the connector elements 10 can be passed. For axial positioning of the positioning foil 21 to the end portions 1 1, the connector elements 1 1 below

Press-in shoulders 25 of the connector elements 10 by a

Stamping process trained retaining claws 26 on both sides of the longitudinal axes 15, _Λ

so that the positioning foil 21 is arranged axially fixed between the press-in shoulders 25 and the retaining claws 26.

The cross section of the plug connection elements 10 is formed substantially rectangular, at least in the region of the end sections 11. Furthermore, the

Width of the slots 22 in the positioning foil 21 is preferably slightly smaller than the width of the connector elements 10 in the region of the retaining claws 26, wherein the retaining claws 26 are in turn laterally surmounted by the Einpressschultern 25.

To prepare the connection arrangement 100, the

Plug connection elements 10 with their end portions 1 1 passed through the slots 22 of the positioning foil 21 until the positioning foil 21 comes in the axial region between the press-in shoulders 25 and the retaining claws 26. The slots 22 are elastically / plastically deformed. The positioning foil

21 directs the longitudinal axes 15 of the connector elements 10 to the

Longitudinal axes 16 of the through holes 6, so that during the subsequent pressing of the connector elements 10 through the projections 52 of the press tool 50, a placement of the tips 14 of

Plug connection elements 10 is reliably prevented laterally adjacent to the through holes 6.

FIG. 3 shows a further embodiment of the invention, in which the guide means 20 are designed in the form of a positioning plate 28 which is shown only in regions and is made of plastic. The positioning plate 28 comes in the region of two end portions 1 1 on the opposite side of the projections 52 of the Einpresswerkzeugs 50 Einpressschultern 25a for engagement with the Einpressschultern 25a. The

Press-in shoulders 25a have, on the side facing the positioning plate 28, slopes 29 which engage with opposing abutment surfaces 31 of the positioning plate

28 cooperate, wherein the positioning plate 28 additionally has an extension 32 which between two adjacent Einpressschultern 25 a two

Plug connection elements 10 can be inserted. The centering of the longitudinal axes 15 of the connector elements 10 takes place on the one hand on the slopes 29 and the contact surfaces 31 and on the other hand via a suitable

Dimensioning or width a of the extension 32. In addition, it is mentioned that the end portion 1 1 of the connector element 10, in contrast to 2, no holding claws 26, but in the area of

Positioning plate 28 is formed at least substantially pin-shaped. On the side of the circuit carrier, not shown in FIG. 2 (printed circuit board 5), the positioning plate 28 has a spring portion 33 which is integrally formed on the positioning plate 28. The spring portion 33 acts when pressing the end portions 1 1 of the connector elements 10 in the

Through holes 6 of the circuit board 5 with the top of the circuit board 5 together and causes the position of the connector elements 10 and their Einpresstiefe can vary in the through holes 6 within certain allowable limits.

4, a modified embodiment of the invention with a positioning plate 28a is provided, the extensions 32a are formed a pin-shaped and each having an undercut 35. The extensions 32a act with in the Einpressschultern trained 25a shots in the form of

Notches 36 together, in which the extensions 32a can be latched. In

By analogy with the projections 32 of FIG. 3, the extensions 32a in FIG. 4 are used in conjunction with the contact surfaces 31 and the bevels 29 of FIG

Centering of the end portions 1 1 to the through holes 6 in the

Printed circuit board 5. Preferably, the positioning plate 28a in the representation of

4 does not have a spring section 33, but is formed on its side facing the circuit board 5 with a flat underside 37. Preferably, the press-fit tool 50 or the projections 52 presses the

Plug connection elements 10 only so deeply into the through holes 6 of the circuit board 5 that the positioning plate 28 a with an axial distance to

Top of the circuit board 5 is arranged. It can then be provided that the positioning plate 28a is pressed in the direction of the printed circuit board 5, in order to avoid tension between the plug connection elements 10, in particular during temperature changes.

In the embodiment according to FIGS. 5 and 6, the guide means 20 for each plug connection element 10b a perpendicular to the plane of Figs. 5 and 6 arranged extension 38 which in a in the

Plug connection element 10b formed in the amount of Einpressschultern 25b breakthrough 39 is introduced with lateral play. The opening 39 has on the end portion 1 1 side facing a flat and perpendicular to the longitudinal axis 15 extending lower edge 41 and both sides of the lower edge 41 each have an oblique edge 42, 43. The extension 38, which is arranged on a positioning plate 28b, not shown in detail, has an underside 44 assigned to the lower edge 41, the width of which corresponds to the width of the lower edge 41 perpendicular to the longitudinal axis 15. For centering or positioning of the connector elements 10b, the extensions 38 are first inserted in a position just above the lower edge 41 of the apertures 39 in the openings 39 in a direction perpendicular to the plane of FIG. 6 insertion direction and then moved vertically in the direction of the circuit board 5 , In this case, the bottom 44 of the

Extension 38 in abutting contact with the lower edge 41 of the opening 39, wherein by the corresponding dimensioning of the lower edge 41 and the bottom 44 in connection with the oblique edges 42, 43 a

Positioning or centering of the respective plug connection element 10b or its longitudinal axis 15 to the longitudinal axis 16 of the through-hole 6, not shown in FIGS. 5 and 6, of the printed circuit board 5 takes place.

7 shows a further modified exemplary embodiment of the invention, in which a projection 52c of a press-fit tool 50c has an extension 45 which is slightly wedge-shaped at least in places and can be inserted into the region between two press-fit shoulders 25c of two plug connection elements 10c arranged adjacent to one another. The centering or positioning of the plug connection elements 10c is effected by a corresponding dimensioning of the extension 45 on the projection 52c. Finally, an embodiment of the invention is shown in Fig. 8, in which an arrangement 46 having a plurality of mutually parallel

Plug connection elements 10d, 10e is shown. It is essential that the two arranged by the connector connection elements 10c, preferably located in edge or corner areas

Plug connection elements 10e in the direction of the printed circuit board 5 have elongated end portions 1 1 e, which during insertion of the

Plug connection elements 10d, 10e first come into operative connection with the corresponding through holes 6 in the circuit board 5. Since the plug connection elements 10d, 10e on the common

Terminal plug body 1 (not shown) are rigidly connected to each other, takes place during insertion of the outer connector elements 10e of Arrangement 45, a centering of the remaining connector elements 10d whose passage openings 6 instead.

The invention thus far described can be modified or modified in many ways without departing from the spirit of the invention.

Claims

claims

1 . Connecting arrangement (100) between a connector plug body (1) and a circuit carrier (5) in an electrical device, with a plurality of, in particular mutually parallel plug connection elements (10; 10b; 10c; 10d; 10e), the substantially rectilinearly shaped end portions (1 1 1 1 e), which are designed to be introduced into a respective receiving opening (6) of the circuit carrier (5) to form an electrically conductive connection, characterized in that the end sections (1 1, 1 1 e) in FIG Contact standing guide means (20) for aligning the end portions (1 1; 1 1 e) are provided in the receiving openings (6).

2. Connecting arrangement according to claim 1,

characterized,

that the guide means (20) as at least one of the

Plug connection elements (10; 10b; 10c) is formed separate component (21; 28; 28a; 28b; 45).

3. Connecting arrangement according to claim 2,

characterized,

that the guide means (20) as a perpendicular to the

Plug connection elements (10) arranged, through openings (22) for the plug connection elements (10) having Positionierfolie (21) are formed, which consists at least in the region of the passage openings (22) made of an electrically non-conductive material, and that

Positioning foil (21) in the connector elements (10) is arranged axially fixable.

4. Connecting arrangement according to claim 3,

characterized,

the through openings (22) of the positioning foil (21) are located between press - in shoulders (25) and holding sections (26) of the

Plug connection elements (10) are fixed, that the

Plug connection elements (10) at least in the region of

Through openings (22) of the positioning (21) has a rectangular cross-section and the passage openings (22) are slot-shaped, and that the material of the positioning (21) when performing the end portions (1 1) of the connector elements (10) is elastically or plastically expandable.

5. Connecting arrangement according to claim 2,

characterized,

in that the positioning means (20) are designed as positioning plates (28, 28a, 28b), and in that the positioning plate (28, 28a, 28b) has extensions (32, 32a, 38) for positive and / or non-positive contact with the plug connection elements (10 10b).

6. Connecting arrangement according to claim 5,

characterized,

in that the extensions (32; 32a; 38) and / or the positioning plate (28; 28a; 28b) have first centering surfaces (31; 44) which engage opposite second centering surfaces (29; 41) on press-in shoulders (25; 25a; 25b). of the

Plug connection elements (10; 10b) cooperate.

7. Connecting arrangement according to claim 5 or 6,

characterized,

in that the positioning plate (28) on the circuit carrier (5)

associated side resilient trained support means (33) for the

Circuit carrier (5).

8. Connecting arrangement according to claim 5,

characterized,

the extensions (32a) interact with receptacles (36) formed in the region of the plug connection elements (10), into which the extensions (32a) can be latched.

9. Connecting arrangement according to claim 5,

characterized,

in that the extensions (38) can be introduced into openings (39) formed in the plug connection elements (10b) in a direction perpendicular to the extent of the plug connection elements (10b), preferably with play.

10. Connecting arrangement according to one of claims 5 to 9,

characterized,

the positioning plate (28; 28a; 28b) consists of plastic and is designed as an injection-molded part.

1 1. Connecting arrangement according to claim 1,

characterized,

in that the guide means (20) comprise at least one plug connection element (10e) extended in the longitudinal direction in relation to other plug connection elements (10d) on the side facing the circuit carrier (5).

12. Connecting arrangement according to claim 1 1,

characterized,

in that a plurality of extended plug connection elements (10e) are provided, and in that the extended plug connection elements (10e) are arranged in edge or corner regions of an arrangement (46) consisting of a plurality of plug connection elements (1d0, 10e).

13. Connecting arrangement according to claim 1 or 2,

characterized,

in that the guide means (20) comprise an extension (45) formed on a press-fit tool (50c), which is insertable between two adjacent press-fit shoulders (25a) of two plug connection elements (10c), wherein the extension is preferably wedge-shaped on the side facing the press-fit shoulders (25a) is trained.

14. A method for producing a connection arrangement (100) according to one of claims 1 to 10, comprising the following steps:

Injection molding a plurality of plug connection elements (10, 10b, 10c) by means of plastic to form a

Plug connection body (1)

- Contacting guide means (20) with the

Plug connection elements (10; 10b; 10c) on the side facing a circuit carrier (5)

Axially pressing in the plug connection elements (10, 10b, 10c) into receiving openings (6) of the circuit carrier (5), the guide means (20) remaining on the connection arrangement (100).

15. Electrical device, in particular switching or control device in one

Motor vehicle with a connection arrangement (100) according to one of Claims 1 to 13.