Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – For receiving coaxial connector
Patent
1997-05-13
2000-02-29
Stephan, Steven L.
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
For receiving coaxial connector
439101, H01R 909
Patent
active
060302313
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention pertains to the field of coaxial connectors and to a method of fixing a coaxial connector to a circuit board.
The prior art discloses a rectangular coaxial connector which can be fixed to a circuit board surface by separate fixing means, such as fixing screws. This results in contact being established between the center conductor of the coaxial connector and the conductor tab on the circuit board. In a corresponding manner, contact is also established between the pipe-like connector of the coaxial connector and the grounding tab on the circuit board.
The most serious drawback of the angle connector described above is that its center connector and the conductor tab on the circuit board will be positioned on different levels when the angular connector is fixed to the circuit board. Consequently, the connecting piece that connects the center connector and the conductor tab a form a right angle with both the center connector and the conductor tab. A right angle, however, causes the electrical properties of the coaxial connector to deteriorate due to reflections that it creates. In addition, the angle connector is relatively high, which causes problems especially if the circuit board has to be installed in a narrow space. Furthermore, fixing the angle connector with screws is relatively laborious and slow.
The prior art additionally discloses a coaxial connector for mounting on a circuit board edge, in which the center conductor of the coaxial connector extends through the connector housing as an unbroken bar, thus constituting a pin which provides an extension for the conductor tab on the circuit board when the connector is fixed to the circuit board, whereby the best possible electrical properties can be achieved. However, this prior art connector has the drawback of being difficult to fix: it is also fixed to the circuit board with separate fixing means, i.e. fixing screws or similar, which makes the fixing process rather difficult, and, additionally, increases the number of parts in the connector.
SUMMARY OF THE INVENTION
It is an object of the present invention to solve the aforementioned drawback and to provide a method for fixing a coaxial connector to a circuit board in a simpler and faster manner than before. This object is achieved by a method of the invention, characterized by the steps of fixing the coaxial connector to the circuit board without using separate fixing means by inserting a grounding pin, which is arranged in the coaxial connector and which extends from the coaxial connector at a substantially right angle in relation to the attachment pin, into a hole or recess on the circuit board, the diameter of said hole or recess substantially corresponding to the grounding pin diameter; and soldering the attachment pin of the coaxial cable to the conductor tab.
The invention further relates to a coaxial connector by means of which the method according to the invention can be implemented. The coaxial connector, according to the invention, is characterized in that the grounding pin is arranged to protrude from the coaxial connector in such a direction that the grounding pin and the attachment pin together form a substantially right angle, thus making the grounding pin protrude into a hole or recess in the surface of the circuit board when the coaxial connector is arranged in place on the circuit board.
The expression `a substantially right angle` in this context means that the angle between the conductor pin, parallel to the surface of the circuit board, and the grounding pin is such that the grounding pin protrudes through the hole or recess on the circuit board at an angle at which the coaxial connector is prevented from moving in the direction of the surface of the circuit board in relation the circuit board surface for as long as the grounding pin is within the hole or recess.
The invention is based on the idea that if the grounding pin of the connector is so designed that it can be utilized in fixing the connector either by soldering the grounding pin
REFERENCES:
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patent: 4737111 (1988-04-01), Minar et al.
patent: 4975066 (1990-12-01), Sucheski et al.
patent: 5076804 (1991-12-01), Bertho et al.
patent: 5197893 (1993-03-01), Marlion et al.
patent: 5462444 (1995-10-01), Korsunsky et al.
patent: 5595499 (1997-01-01), Zander et al.
Nokia Telecommunications Oy
Patel T. C.
Stephan Steven L.
LandOfFree
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