The present invention relates to a connector with integrated
There are D-sub filter filter connectors that have a housing
have, in which a plurality of plug contact pins are arranged. In
the housing is a circuit board. The board is
provided with holes through which the plug pins
extend. The plug pins are soldered to the board. On
The board is a capacitor for each plug contact pin
provided, which led by plug pins
to filter electrical signals. The board is with the case
mechanically and electrically connected by means of a solder joint.
Since the housing is connected to ground, this forms solder joint
the ground connection for the board.
Filter plugs have proven themselves in practice, as with
they can be filtered by interfering signals. The
Integration of a board in such a miniaturized connector
However, it is problematic because such a board is sensitive to
mechanical loads. For plug-in operations is a
a significant proportion of the insertion forces absorbed by the board.
These insertion forces lead to damage
the board and damage the solder joints
between the plug contact pins and the board or between the
Board and the housing. The life of these connectors
is therefore limited.
integrating a board into a miniaturized connector
is very advantageous because a board basically any
Circuit arrangements allowed, the variety of circuits
limited only by the limited area of the board
is, such miniaturized filter plug have been almost
designed exclusively without blanks. There are
a number of different solutions.
So revealed the EP 0 137 116 B1
a connector with chambers in which monolithic capacitors are arranged. The capacitors are pressed by means of a spring element against the plug contact pins so that they are electrically connected thereto. These connectors are mechanically simple and reliable. They have a long life. However, the electrical contacts between the capacitors and the plug contact pins can be released in vibration, whereby the filter characteristic is impaired. With these connectors is disadvantageous compared to connectors with integrated circuit board, that only capacitors can be brought into electrical contact with the plug contact pins and a further electrical connection is not possible.
From the EP 0 712 141 B1
goes out a connector having a plurality of parallel arranged in a grid plug contact pins. The plug contact pins are surrounded by a strip body. The strip body is designed as a filter element. It consists of a mixture of insulating material and ferrite material. This strip body forms an electrical inductance for filtering unwanted high frequency signals. This generates EMC protection. There are also separately formed tubular ferrite body, each enclose a plug contact pin to form an inductance on the plug contact pins.
From the EP 1 315 253 A1
goes out a capacitor body for a connector. The condenser body consists of a monolithic ceramic body with tubular passageways. This ceramic body is coated with metal so that it represents with each passageway a capacitor to each arranged in the passageways plug contact pins.
attached filter elements (ferrite body, metallic
coated ceramic body) have considerable tolerances
in your electrical properties (inductance, capacity).
Although they are mechanically stable in the long term, they can
often do not meet the required electrical properties.
there is a considerable need for a miniaturized connector,
with electronic components such as capacitors and / or inductors
is provided, which have only small tolerances, and the connector
should also be the typical mechanical complaints by the plug operations
and preferably also stronger mechanical complaints
due to vibration can withstand.
Invention is therefore the object of a connector
to create, which has a long life and also an electric
Interconnection allows the precise electrical properties
The object is achieved by a connector having the features of the claim
1 solved. Advantageous embodiments are in the subclaims
The connector according to the invention comprises a plurality of plug contact pins, a housing in which the plug contact pins are arranged, and a circuit board, which is arranged in the housing and is electrically connected to at least one of the plug contact pins. This connector is there by that the circuit board is mounted in the housing so that it is mechanically decoupled to the plug contact pins and / or the housing, so that relative movements between the plug contact pins and the housing cause no tension on the board.
the mechanical decoupling of the board with respect to the plug contact pins
and / or the housing are the plug-in operations
applied insertion forces are not introduced into the board,
so that the risk of damage to the board in comparison
to conventional connectors with integrated circuit board
is significantly reduced. This extends the
Lifetime of the connector over conventional
the provision of a board in the connector, it is possible
the plug pins with any electrical circuits too
connect. The variety of circuits becomes solely due to the limited area
the board is limited. Coils can be arranged on the board
whose inductance is much more precise
as the inductance of plugged on the plug pins
mechanical decoupling of the board with respect to the plug contact pins
and / or the housing is either by an elastic
electrical connection between the board and the plug contact pins
and / or the housing. This is appropriate
if the board with both the plug pins and with
the housing is electrically connected. In one embodiment,
in the only one electrical connection between the plug contact pins
and the board but not between the board and the housing
should consist, the board is preferably arranged with play in the housing,
leaving the board free with respect to the housing
is mobile. In special applications, the mass is not over
the housing but via a plug contact pin
a further preferred embodiment of the invention
Connector are the plug pins with the board respectively
mechanically and electrically connected by means of pressfit connection.
This press fit connection does not represent a mechanical decoupling
in this embodiment between the board and
is to provide the housing. The massive used here
Pressfit connection forms a very durable mechanical and
electrical connection between the plug pins and the
Circuit board. On the other hand, a flexible pressfit connection offers a minor one
Game, so that it also contributes something to the mechanical decoupling.
a further advantageous embodiment of the present invention
Invention are the plug contact each of a pair of pins
formed, wherein the pairs of sub-pins at a distance from each other
are arranged. The board is located between the
Part pins and it is an electrical connection between the
Board and the sub-pins formed. This electrical connection
is preferably by an elastic element, both at the
Board and can be attached to the sub-pins, trained.
This elastic element is for example an electrically conductive
Provision of such broken plug pins allowed
it is to conduct the signal flow through the circuit, d. H.,
that electronic components arranged in series with the plug contact pin
are. With continuous plug contact pins can electronic
Components only connected in parallel to the plug contact pins
Plug contact pins are in the housing by means of insulating
mechanically fixed. These insulators are usually
injection molded plastic parts. These injection molded parts
have mechanical tolerances that are usually larger
as the mechanical tolerances of the housing formed of metal
are. This can cause a game between the insulators
and the housing and thus between the plug contact pins
and the housing is not always completely avoided
become. By the inventive mechanical
Decoupling of the relative movements between the plug contact pins
and the case causes this game no problems.
With two adjacently arranged insulating bodies, respectively
shoulders formed on the plug pins between them
clamp, serve for the axial fixation of the plug contact pins.
By at least two spaced apart insulating body
the plug-in pins are fixed tilt-free in the connector.
Invention will be described in more detail below by way of example
in the drawings illustrated embodiments
explained. The drawings show:
1 A first embodiment of a miniaturisieten connector according to the invention in a perspective view,
2 the connector off 1 without housing in perspective side view,
3 , the connector off 1 in an exploded view,
4 the connector off 1 in a sectional view,
5 a plug contact pin of the connector 1 in perspective view,
6 another plug pin in perspective view,
7 A second embodiment of a miniaturized connector in a sectional view,
8th A third embodiment of a connector according to the invention in a perspective view,
9 the connector off 8th without housing in a perspective view, wherein the connector is partially cut free,
10 the connector off 8th in an exploded view,
11a . 11b a board of the connector 8th with a view on the front and back,
12a . 12b . 12c , in each case an insulating body in perspective view,
13 a formed of a pair of sub-pins plug contact pin, and
14a - 14d each a filter circuit for a connector.
In the 1 to 5 a first embodiment of a miniaturized connector according to the invention is shown.
The connector 1 includes a housing 2 , the two housing halves 2.1 and 2.2 , a set of plug pins 3 , three insulators 4.1 . 4.2 . 3.4 and a board 5 having. In the present embodiment, the plug contact pins 3 at one end with a pin 6 and at the other end with a solder cup 7 educated ( 5 ). The pins 6 the plug contact pins 3 are in an opening of the housing 2 on a mating side 8th arranged. The solder cups 7 are at a back 9 of the connector 1 arranged and stand here in front of a piece.
The present embodiment is a sub-D connector. However, the invention is not limited to this construction. The housing 2 is an electrically conductive metal housing and can produce an electrical ground connection when plugged into a mating connector. At the mating side 8th shows the case 2 one the pins 6 enclosing socket 10 on, on the inside of Kontaktnoppen or Dimple 11 are formed to make a positive engagement with a corresponding mating connector.
The at the plug side 8th arranged insulating body 4.1 is referred to below as Frontteilisolierkörper. This front part insulating body 4.1 is a substantially planar plastic tile whose outlines slightly larger than the opening of the plug-side housing part 2.1 are. The front part insulating body 4.1 has on its side facing the mating side laterally two projecting webs 12 on, whose outside to the shape of the inner surface of the opening of the plug-side housing part 2.1 is adapted, so that the Frontteilisolierkörper hereby in the plane transverse to the direction of insertion 13 is positioned.
In the front part insulation body 4.1 are through holes in a standard grid 14 for receiving one of the plug contact pins 3 educated. The through holes 14 are opposite to the plug-in direction 13 stepped widened so that they are on the back of Fronteilisolierkörper 4.1 a recess 15 for the positive reception of one shoulder each 16 of the respective plug contact pin 3 form.
The plug contact pins have a plug-in section, which acts as a pin 6 ( 5 and 6 ) or as a socket 17 ( 6 ) is formed, then at the plug-in portion of the shoulder 16 , a cylindrical pin section 18 with a smaller diameter than the shoulder 16 , a pressfit section 19 and a soldering element 20 on. The shoulder 16 is one on the plug pin 3 circumferential projection with two flattened surfaces, which are formed opposite and parallel to each other. The recess 15 in the front part insulating body 4.1 has an exactly complementary shape to the shoulder 16 on, so here's the shoulder 16 and thus the plug contact pin 3 is received against rotation. The pressfit section 19 can be used as a square ( 5 ) or knurled ( 6 ) be formed. The maximum diameter of the pressfit section 19 is not larger than the diameter of the pin sections 18 , The soldering element 20 can as a solder cup 7 or be formed as a solder pin.
At the back of the front part insulation body 4.1 is the insulating body 4.2 arranged in the following as the first Rückteilisolierkörper 4.2 referred to as. This first Rückrückisolierkörper 4.2 again points in the grid of the plug pins 3 arranged through holes 22 on. The diameter of the through holes 22 corresponds to the diameter of the pin sections 18 the plug contact pins 3 so the plug pins 3 with her pen sections 18 in the holes 22 to store. Shoulders 16 the plug contact pins 3 lie opposite the direction of insertion 13 at the first back insulation 4.2 on, so that the plug pins 3 are set in the axial direction, as they are in the insertion direction 13 with her shoulders 16 at the front part isolating body 4.1 strike and in the direction opposite to the direction of insertion 13 with her shoulders 16 at the first back insulation 4.2 attacks.
The first back insulation 4.2 has two projections on its front 23 in the corresponding recesses on the back of the front part Isolierkörpers 4.1 intervention.
At the back of the first Rückrückisolierkörpers 4.2 At the corners protrusions are provided as spacers 24 serve. From these spacers 24 becomes the further insulator 3.4 hereinafter referred to as a second back insulation member spaced from the central portion of the first back insulation member 4.2 held. In the intermediate region formed thereby between the first Rückrückisolierkörper 4.2 and the second backseal insulating body 3.4 is the circuit board 5 , The board 5 is made of a printed circuit board and arranged on the circuit boards electrical components 26 educated. The printed circuit board is again in the grid of the plug contact pins 3 arranged through holes 25 educated. The through holes are coated on their inner surface with copper and form so-called vias. In the circuit board tracks are formed, which the vias with the electrical components 26 connect. These electrical components 26 are mainly capacitors and coils. They are designed as SMD components and are typically soldered and / or glued to the circuit board of the board. The printed circuit board is typically a multilayer plastic printed circuit board. However, it can also be made of ceramic. The electrical components 26 can be located both on the front and on the back of the board. In the present embodiment, the board 5 only on the side facing the plug side electrical components 26 , namely capacitors on. Each plug contact pin 3 in each case a capacitor is assigned.
The contour of the board runs so that it is between the spacers 24 the first Rückrückisolierkörpers 4.2 fits. The surface of the first Rückrückisolierkörpers 4.2 is with recesses for receiving the electrical components 26 educated. The recesses are referred to below as pockets 27 designated. In these bags 27 have the electrical components 26 Space with little play. If, for example, in a later machining process in which the entire connector is heated, the solder joints between individual components and the circuit board of the board should solve solve the electrical components 26 their position as they pass through the pockets 27 held in position so that the solder solidifies again during cooling of the connector and the solder joint between the electrical components and the circuit board continues to exist. The bags 27 may also be provided with a layer of an elastomer or an elastic Po lymer, in which the components 26 are elastically embedded, so that they are kept free of play but elastic.
The plug contact pins are stuck with their Pressfitabschnitten 19 in the vias 25 the board 5 and form with this a Pressfit connection. Such Pressfit connections are also referred to as press-in contacts and are in the DIN 41 611 part 5 respectively. DIN IEC 352 normalized. An essential feature of such a pressfit connection is that the pin (here: the pressfit section 19 ) in cross-section a larger diagonal than the via to be contacted 25 having. This creates when pressing the pin into a via an overpressure that is absorbed either by deformation of the via or by deformation of the pin. There are therefore two types of press-fit connections, the solid version in which the through-hole deforms and the flexible design in which the pin deforms. The Pressfit connections of the present embodiment correspond to the solid version.
The Pressfit connection is designed such that the necessary Aufsteckkräfte for attaching the board 5 on the plug pins 3 to form the Pressfit connection is as low as possible, so that a certain elasticity and mobility of the plug contact pins 3 regarding the board 5 given is. On the other hand, the Aufsteckkräfte are so large that a permanently secure mechanical and electrical connection between the plug contact pins 3 and the vias 25 the board 5 is guaranteed. In prototypes of the present invention, it has been found that the Pressfit connection is much more suitable than a rigid solder connection, even if the mobility of the plug pins 3 regarding the board 5 is low.
At the back is the connector 1 through the second backseal isolator 3.4 completed, the form-fitting in the opening of the rear housing part 2.2 is included. The second back insulation 3.4 again has through holes 28 on, through which a rear portion of the pressfit connections of the plug pins 3 extends.
The three insulators 4.1 . 4.2 , and 3.4 are arranged at a distance from each other and each form-fitting enclose the plug contact pins 3 , As a result, the plug contact pins 3 in a plane transverse to the direction of insertion 13 fixed and secured against tilting.
Between the board 5 and the rear housing part 2.2 there is an electrically conductive Leitgummiröhrchen 29 , These conductive rubber tubes 29 serves as an elastic contact element 29 , This elastic contact element 29 is in contact with an electrical contact surface of the board and with a low bias between the board 5 and the rear, electrically conductive housing part 2.2 arranged. This will create an electrical connection between the board 5 and the housing part 2.2 formed, which serves as a ground connection. As the contact element 29 is elastic or flexible, is the connection between the board 5 and the housing 2 mechanically decoupled.
As electrically conductive elastic or flexible contact element 29 can instead of a conductive rubber tube 29 a contact element may also be provided which consists of a stranded element made of elastic twisted strands (for example in the form of a plug), a spring element with a low spring characteristic, an elastic body which is enveloped by a metal mesh, an elasticized conductive polymer or a conductive elastomer is trained. However, any other elastic or flexible electrical connection is also suitable.
7 shows a second embodiment of a miniaturized connector according to the invention in a sectional view. The structure of the connector 1 according to the second embodiment substantially corresponds to the structure of the connector 1 according to the first embodiment, which is why the same parts are provided with the same reference numerals. The second embodiment differs from the first embodiment only in that no second Rückrückisolierkörper is provided. The plug contact pins 3 be in the case 2 only by means of a first front part insulating body 4.1 and a single backseal body 4.2 held. Between these two insulators 4.1 and 4.2 how are shoulders in turn? 16 the plug contact pins 3 arranged so that the plug pins are fixed in the axial direction. Shoulders 16 store against rotation in the corresponding recesses 15 of the Fronteilisolierkörpers 4.1 , A circuit board 5 is adjacent to a rear wall of the housing part 2.2 arranged. Between the board 5 and the rückwertigen housing part 2.2 a gap of about 6/10 mm is formed, in which there is an electrically conductive spring element 30 which is an electrical connection between the housing 2 and the board 5 manufactures. This spring element 30 is, for example, a simply angled copper sheet. It's with the board 5 soldered and pressed due to its spring action against the inner surface of the housing 2 , In a relative movement of the plug contact pins with respect to the housing 2 will the board 5 together with the plug contact pins 3 with respect to the housing 2 emotional. By providing the spring element 30 will be the electrical connection between the board 5 and the housing 2 even if not interrupted when the distance between the board 5 and the housing 2 one piece enlarged.
The back insulation 4.2 has spacers at the corner as in the first embodiment 24 on, located at the back corner areas of the rear housing part 2.2 support. This will cause mating forces on the pins 6 abutment (arrow 1.31 ) from the plug contact pins 3 to the insulating body 4.1 . 4.2 (Arrow 2.31 ) and from the Rückrückisolierkörper 4.2 in the case 2 initiated (arrow 3.31 ). Because the board 5 with respect to the housing 2 is freely movable and with some play in the case 2 is arranged, the insertion forces are not over the board 5 transfer. The board 5 thus remains free of tension. This ensures a long life.
A third embodiment of a miniaturized connector with integrated circuit board is in the 8th to 13 shown. It is again a sub-D connector 1 with a housing 2 and arranged in a predetermined grid plug contact pins 3 , In this embodiment, the plug contact pins 3 each from a pair of sub-pins 32 . 33 educated ( 13 ). The sub-pins 32 . 33 are so-called pogo pins, that is, they have a tubular body 34 in which a contact pin 35 is slidably mounted. The tubular body 34 is closed at one end and at the other end is the contact pin 35 a piece out. In the main body 34 there is a spring element that the contact pin 35 applied. The sub-pins 32 . 33 are thus elastically yielding in length by the contact pin 35 into the main body 34 can be inserted and acted upon by the spring element with a corresponding counterforce.
The two sub-pins 32 . 33 each have a circumferential shoulder 16 on, each with two laterally flattened surfaces 21 are provided. The in the direction of insertion 13 pointing part pin 32 forms a pin in the direction of insertion to the front 6 for insertion in a corresponding mating connector. The part pin located on the back of the connector 33 forms at its opposite to the plugging direction 13 pointing end a soldering pin 36 which is insertable and solderable in a corresponding hole of a printed circuit board.
This connector has four Isolierkör by 4 on. Starting from the plug side 8th are towards the back 9 successively the outer Frontteilisolierkörper 4.4 , the inner front part insulator 4.5 , the inner back part insulator 4.6 and the outer back insulation 4.7 arranged. The outer insulator 4.4 and 4.7 are the same as the Frontteilisolierkörper 4.1 of the first embodiment with externally arranged positioning webs 12 and through holes 14 attached to the diameter of the respective sub-pins 32 . 33 adapted, trained.
The two inner insulators 4.6 have essentially the same structure. They each have an outwardly facing substantially smooth surface with two recesses 23 , in the corresponding projections of the outer insulating body 4.4 respectively. 4.7 intervention. Furthermore, in the inner insulators 4.5 and 4.6 Through holes 22 formed, the outwardly gradually to a respective recess 15 expand, which is exactly complementary to the shape of the shoulders 16 the sub-pins 32 . 33 are. In these recesses 15 store your shoulders 16 the sub-pins 32 . 33 torsion. Shoulders 16 are between the respective outer insulating body 4.4 respectively. 4.7 and the respective inner insulating body 4.5 respectively. 4.6 arranged and thereby axially fixed.
On the inside, the inner insulating body 4.5 and 4.6 At their corners in each case inwardly facing spacers 24 on. The two inner insulators 4.5 and 4.6 lie on push with their spacers 24 to each other so that they have between them a cavity for receiving a board 5 limit.
The board 5 is approximately trapezoidal ( 11a . 11b ), with indentations at the corners 37 that conforms to the shape of the spacers 24 are adjusted. The board 5 has relatively large circular contact fields on both sides 38 on, on which the sub-pins 32 . 33 each with their contact pins 35 with a low bias. On the side of the board facing the plug side 5 ( 11a ) is located next to each of the contact fields 38 one coil each 39 with one end electrically connected to the contact field 38 and with the other end electrically with another contact pad 40 connected is. These contact fields 40 are with so-called vias through the circuit board of the board through with corresponding contact fields 41 connected to the other side of the board ( 11b ). The on the back of the board 5 arranged contact fields 41 are each via a conductor track 42 with one of the large contact fields 38 electrically connected. The sink 39 is thus in series with the respective sub-posts 32 . 33 connected.
In addition to every large contact field 38 is a capacitor 43 arranged, on the one hand with the respective contact field 38 and on the other hand with a ground trace 44 electrically connected. The ground trace 44 is on the circuit board of the board 5 formed circumferentially and covers the end face of the board.
The through the two inner insulator 4.5 and 4.6 trained hollow body has two narrow side surfaces 45 and two longitudinal side surfaces 46 on ( 9 ). The upper longitudinal side surface has a shallow recess 47 on ( 9 ). In this recess, the board is a small piece with an edge portion. This edge section is part of the ground track 44 , In the recess 47 is a guide pillow 48 arranged, which is a piece of foam, which is covered with an electrically conductive tissue. The Leitkissen 48 touched with one side of the front edge of the circuit board of the board and is with its other side with the housing 2 in contact and thus provides an electrical connection between the ground rail 44 and the housing 2 ago. In 9 the guide pad is partially cut away to the recess 47 to make visible.
At the inwardly facing sides of the inner insulator 4.5 and 4.6 in turn are bags 49 for receiving the electrical components 39 . 43 the board 5 intended. Also these bags 49 can be lined with an elastic material.
The board 5 is with play between the two inner insulators 4.5 and 4.6 arranged, being on both sides by the sub-pins 32 . 33 with little force due to the spring action in the sub-pins 32 . 33 provided spring elements is acted upon. The insertion forces are at the shoulders 16 the sub-pins 32 in the inner front part insulating body 4.5 introduced and arranged on the arranged in the corners spacers on the other inner Rückrückisolierkörper 4.6 and over the adjacent thereto outer Rückrückisolierkörper 4.7 on the case 2 derived. The insertion forces of the connector 1 will not be on the board 5 transfer. Apart from the small by the spring elements of the sub-pins 32 . 33 exerted forces is the board 5 arranged in the connector force and stress-free.
The board 5 is thus encapsulated by the inner insulating body of the external mechanical loads.
14a to 14d show by way of example some filter circuits that can be realized with the connectors according to the invention. Ze denotes the input impedance and Za the output impedance. Between the entrance Impedance Ze and the output impedance Za is the connector.
14a shows a C-filter, in each case a capacitor C parallel to a plug pin 3 is switched.
14b shows an L-filter in which an inductance in series with the plug contact pin and a capacitance is arranged parallel to the plug contact pin. The arranged in series inductance can be in a connector with continuous plug contact pins 3 be realized by means of a ferrite. In a connector with an interrupted plug contact pin, the inductance may also be formed by a coil. The inductance of a coil is much more precise than that of a ferrite body, so that such a filter is much more precise than a filter formed with a ferrite body. This is a significant advantage, because in the design of the filter whose tolerances must be considered. If the tolerances are lower, the frequency band to be passed by the filter can be defined much narrower and less spurious frequencies can pass through the filter.
14c shows a Pi filter. The pi filter has an inductance L arranged in series with the plug contact pin and two capacitors C1 and C2 connected in parallel therewith. The third embodiment has such a pi filter as that of the sub-pins 32 . 33 in series coil 39 and the corresponding capacitors 43 consists.
continuous plug contact pin, such a pi filter thereby
be realized that two boards are provided in the connector,
for each plug pin a capacitor
and between the two boards is a ferrite body
arranged, which forms the inductance. Such an embodiment
However, it can only be produced with large tolerances.
14b shows a T-filter with two series-connected coils and a capacitor connected in parallel to the plug pin.
C-filter has an attenuation of about 20 dB, the L-filter
has an attenuation of about 40 dB and the pi filter
and the T-filter each have a damping of about
60 dB. It can be seen that the attenuation of the filter
the more complex the more complex they are, the stronger. By
the use of a board integrated in the connector can
Basically arbitrarily complex filters are provided.
Optionally, several boards in the connector in stacked
Provide arrangement so that for the individual components
there is enough space.
Filters discussed above are passive filters. As part of
According to the invention, it is also possible to have an active filter
to integrate in the connector. This is about a
Plug contact pin of the filter circuit to supply a supply voltage.
The filter then includes active elements, such as electrical amplifiers
and control components.
The invention can be briefly summarized as follows:
The invention relates to a connector with a plurality of plug contact pins, a housing in which the plug contact pins are arranged, and one or more boards, which are arranged in the housing and are electrically connected to at least one of the plug contact pins. The invention is characterized in that the board is fixed in the housing in such a way that it is mechanically decoupled from the plug contact pins and / or the housing so that relative movements between the plug contact pins and the housing do not cause any tension in the board.
- Plug pin
- circuit board
- Pin code
- Solder Cup
- mating side
- plug sleeve
- plug-in direction
- Through Hole
- pin section
- solder member
- Through Hole
- Through Hole
- Through Hole
- contact element
- spring element
- part pen
- part pen
- round body
- Contact field
- Kitchen sink
- Contact field
- Contact field
- conductor path
- Ground trace
- Edge face
- Longitudinal side face
QUOTES INCLUDE IN THE DESCRIPTION
The documents listed by the applicant have been automated
generated and is solely for better information
recorded by the reader. The list is not part of the German
Patent or utility model application. The DPMA takes over
no liability for any errors or omissions.
Cited patent literature
- EP 0137116 B1 
- - EP 0712141 B1 
- EP 1315253 A1 
Cited non-patent literature
- - DIN 41 611 
- - DIN IEC 352