HK1149640B - Co-axial plug-in-insertion connector - Google Patents

Description

Coaxial plug connector

Technical Field

The present invention relates to a coaxial plug connector (co-axial plug-in-insertion connector), and more particularly, to a coaxial plug connector having an inner conductor portion, an outer conductor portion, and an insulating portion made of a dielectric material, the insulating portion holding the inner conductor portion to be coaxial with the outer conductor portion, the coaxial plug connector further having a coding housing (coding housing) in which the inner conductor portion and the outer conductor portion are disposed, the coaxial plug connector having an insertion end (insertion end) for connecting a mating coaxial plug connector, and the insulating portion and the coding housing being integrated.

Background

US 2003/0176104 a1 discloses a coaxial plug connector with a plastic housing, which coaxial plug connector conforms to the so-called FAKRA (of SMB joint)Fachkreis Automobiltechnik, panel of automotive technical experts) standardization system: in which a plastic housing is provided for holding and protecting the plug connector and for pre-positioning the plug connector before the process of connecting it to another plug connector having a plastic housing, which housing also has mechanical coding means, so that only the mating housings can be plugged into one another.

Such plastic housings for coaxial plug connectors, also referred to as FAKRA housings, are used in the automotive industry for data transmission cables, which are generally coaxial cables or similar cables based on electrical conductors. The physical dimensions in the interface area of such FAKRA housings, i.e. the shaft section of the housing which is to be mated with a mating plug for producing a mechanical connection between two plastic housings, are specified in DIN standard 72594-1, 10 months 2004. The name "road vehicle-50 ohm-radio frequency interface (50 Ω -RFI) -first part in the above DIN standard 72594-1: the size and electrical requirements "specify connectors and plugs for interfaces with 50 ohm impedance (50 Ω rf interfaces) in rf applications for road vehicles to ensure communication to the car and communication to the outside of the car. The first section defines the dimensions, electrical requirements and characteristics thereof and ensures consistency of these characteristics. All known car manufacturers comply with this standard in production. The content of this standard is set by the automobile standardization committee (FAKRA) of (germany).

The German automobile standardization committee (FAKRA) in the German Institute of standardization (German Institute for standardization) represents a regional, national and international standardization interest in the automotive field, the field of its mission including the formulation of all standards for consistency, replaceability and safety with respect to road vehicles produced according to DIN 70010 (with the exception of cultivation tractors), where the drive of the road vehicle may be an internal combustion engine, an electric motor or a hybrid drive. The FAKRA also defines the construction (body) standards for such road vehicles (with the exception of local service vehicles, fire trucks and ambulances), and is responsible for defining the standards for the overall assembly and construction of such vehicles, as well as the specifications for cargo containers (ISO-containers). Rationalization and quality assurance of vehicle design and manufacture can be promoted by standard formulation, and environmental friendliness of the vehicle can be promoted. In addition, the establishment of the standard is also beneficial to promoting the latest technical and scientific technology level to improve the vehicle and vehicle traffic safety, and is beneficial to both producers and consumers.

Disclosure of Invention

The main object of the invention is to improve the manufacture and assembly of the above-mentioned coaxial plug connector with a coding housing.

The object of the invention is achieved by a coaxial plug connector of the above-mentioned type having the following features: a coaxial plug connector has an inner conductor portion, an outer conductor portion, and an insulating portion made of a dielectric material, the insulating portion holding the inner conductor portion coaxially with the outer conductor portion; the coaxial plug connector is further provided with a housing in which the inner conductor part and the outer conductor part are arranged, the coaxial plug connector having an insertion end for connection to a mating coaxial plug connector, the insulation part being integral with the housing, the coaxial plug connector being characterized in that the housing is a coding housing, the outer conductor part, the inner conductor part and the coding housing being designed such that, for the coaxial plug connector to be assembled, the outer conductor part and the inner conductor part can be inserted into the coding housing from the insertion end.

Preferably, the at least one first contact pin of the outer conductor portion is arranged at an end of the outer conductor portion opposite to the insertion end.

Preferably, the at least one second contact pin of the inner conductor part is arranged at an end of the inner conductor part opposite to the insertion end.

The above-mentioned structure design has the advantage that when the coaxial plug connector is assembled, no additional insulating part is needed, thereby simplifying the manufacturing and assembling operation of the coaxial plug connector.

The coding housing is made entirely of dielectric material.

In a preferred embodiment, the coding housing is injection molded.

The coding shell may for example be designed such that the physical dimensions within the interface region are those according to the FAKRA standardization of the 50 Ω radio interface.

In a particularly preferred embodiment, the outer conductor has at least one, in particular two, three or four first contact pins, and at least one first opening is arranged and formed in the coding jacket such that, when the outer conductor is fitted into the coding jacket, the at least one first contact pin of the outer conductor is brought out of engagement with the at least one first opening. Preferably, the at least one first contact pin of the outer conductor portion is arranged in this case at an end of the outer conductor portion opposite the insertion end.

According to the invention, the coaxial plug connector is a straight (straight) plug connector or an angled plug connector.

If the outer conductor part and/or the inner conductor part are/is produced as stamped bent parts, the production costs of the coaxial plug connector according to the invention can be saved considerably.

According to the invention, the coaxial plug connector is designed to be electrically and mechanically connected to a Printed Circuit Board (PCB).

In a preferred embodiment, the inner conductor part has at least one second contact pin, and at least one second opening is arranged and formed in the coding jacket such that the second contact pin of the inner conductor part is press-fitted into the at least one second opening when the inner conductor part is fitted into the coding jacket. Preferably, the at least one second contact pin of the inner conductor part is in this case arranged at an end of the inner conductor part opposite the insertion end.

The coaxial plug connector of the present invention may be a plug or a jack.

Drawings

Fig. 1 is an exploded perspective view of a preferred embodiment of a coaxial plug connector according to the invention.

Fig. 2 is a sectional exploded view of the coaxial plug connector of fig. 1.

Fig. 3 is a perspective view showing the coaxial plug connector in fig. 1 in an assembled state.

Fig. 4 is a sectional view showing the coaxial plug connector in fig. 1 in an assembled state.

Fig. 5 is another sectional view showing the coaxial plug connector in fig. 1 in an assembled state.

Detailed Description

The invention will be explained below with reference to the drawings.

The preferred embodiment of the coaxial plug connector according to the invention shown in fig. 1 to 5 comprises: an outer conductor portion 10, an inner conductor portion 12 (center conductor), and a code housing 14. The coaxial plug connector has an insertion end 16, the insertion end 16 having an interface region and being designed to be electrically and mechanically connected to a mating coaxial plug connector. The physical dimensions of the encoded housing 14 within the interface region of the insertion end 16 are, for example, those conforming to the FAKRA standardized architecture of the 50 Ω -radio frequency interface.

For the coaxial plug connector to be assembled, the outer conductor section 10, the inner conductor section 12 and the coding shell 14 are designed such that the outer conductor section 10 and the inner conductor section 12 can be inserted into the coding shell 14 from the insertion end 16.

The outer conductor portion 10 has four first contact pins 18 and the code housing 14 is formed with four first openings 20 such that when the outer conductor portion 10 is fitted into the code housing 14, each first contact pin 18 passes through each first opening 20. The inner conductor portion 12 has a second contact pin 22 and the code housing 14 is formed with a second opening 24 such that when the inner conductor portion 12 is fitted into the code housing 14, the second contact pin 22 passes out of the second opening 24.

According to the invention, the coding housing 14 is provided with an insulation 26 integral therewith, which insulation 26 holds the inner conductor section 12 coaxially with the outer conductor section 10 within the coaxial plug connector. The insulating portion 26 is made of a dielectric material. The dielectric material and the radial thickness of the insulation 26 are in this case selected such that the insulation 26 produces the desired predetermined impedance characteristics. Preferably, the entire code housing is made of such a dielectric material by injection molding.

The end of the code housing 14 opposite the insertion end 16 having a first opening 20 and a second opening 24 therein is designed for connection to a printed circuit board (not shown). For this purpose, the first contact pins 18 and the second contact pins 22 are fitted into corresponding openings in an area, referred to as the "footprint", on the printed circuit board, in which the coaxial plug connector is electrically and mechanically connected to the printed circuit board.

The outer conductor portion 10 and the inner conductor portion 12 are in the form of stamped bent pieces.

In the embodiment shown, the coaxial plug connector is in the form of a socket, however, the coaxial plug connector need not be in the form of a socket, but the coaxial plug connector may also be in the form of a plug.

The above examples are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. All changes and modifications that come within the meaning and range of equivalents of the disclosed technology are intended to be embraced therein without departing from the scope of the invention.

Claims (12)

1. A coaxial plug connector has an inner conductor portion (12), an outer conductor portion (10), and an insulating portion (26) made of a dielectric material that holds the inner conductor portion (12) coaxially with the outer conductor portion (10); the coaxial plug connector is further provided with a housing (14), the inner conductor part (12) and the outer conductor part (10) being arranged in the housing, the coaxial plug connector having an insertion end (16) for connection to a mating coaxial plug connector, the insulating part (26) being integral with the housing (14), wherein the housing (14) is a coding housing, for the coaxial plug connector to be assembled, the outer conductor part (10), the inner conductor part (12) and the coding shell (14) are designed such that the outer conductor part (10) and the inner conductor part (12) can be inserted into the coding shell (14) from the insertion end (16), characterized in that the outer conductor part (10) has 4 contact pins (18) extending in a rectangular configuration, the inner conductor part (12) has a cylindrical contact pin (22) arranged centrally in the 4 contact pins (18).

2. Coaxial plug connector according to claim 1, characterized in that the coding housing (14) is made entirely of dielectric material.

3. Coaxial plug connector according to claim 1, characterized in that the coding housing (14) is injection molded.

4. Coaxial plug connector according to claim 1, characterized in that the physical dimensions of the coding housing (14) within the interface region of the insertion end (16) conform to the FAKRA standardization of the 50 Ω radio frequency interface.

5. Coaxial plug connector according to claim 1, characterized in that the contact pin (18) is fitted into the coding housing (14) through 4 openings (20).

6. Coaxial plug connector according to claim 5, characterized in that the contact pin (18) of the outer conductor section (10) is arranged at an end of the outer conductor section (10) opposite the insertion end (16).

7. The coaxial plug connector of claim 1, wherein the coaxial plug connector is a flat plug connector or an angled plug connector.

8. Coaxial plug connector according to claim 1, characterized in that the outer conductor section (10) and/or the inner conductor section (12) is/are a stamped and bent piece.

9. The coaxial plug connector of claim 1, characterized in that it is designed to be electrically and mechanically connected to a Printed Circuit Board (PCB).

10. Coaxial plug connector according to claim 1, characterized in that the contact pins (22) of the inner conductor part (12) are fitted into the coding housing (14) through openings (24).

11. Coaxial plug connector according to claim 10, characterized in that the contact pin (22) of the inner conductor portion (12) is arranged at an end of the inner conductor portion (12) opposite the insertion end (16).

12. The coaxial plug connector of claim 1, wherein the coaxial plug connector is a plug or a jack.