Flat F-port coaxial electrical connector

A flat F-port coaxial electrical connector disclosed herein comprises a connector body and a terminal structure. The connector body has an annular stopper protrusion which is able to engage with a second insulation adapter by inlaying into the outer surface of the second insulation adapter so that the terminal of the conductor body is formed into a flat surface. With this structure, when the electrical connector of the present invention is engaged with a F-type male connector, the mating surface can be maintained in smooth and flat finished state thereby preventing electromagnetic signal leakage.

BACKGROUND OF THE INVENTION
 (1) Field of the Invention
 The present invention relates to a flat F-port coaxial electrical
 connector, and more particularly, to a flat F-port coaxial electrical
 connector when the terminal structure is engaged to the connector body, a
 second insulator adapter of the terminal structure is conjoined to an
 annular stopper protrusion of the conductor body so that the terminal of
 the conductor body is formed into a flat surface. With this structure,
 when the electrical connector of the present invention is engaged with a
 F-type male connector, the mating surfaces can be maintained in smooth and
 finished state thereby preventing electromagnetic signal leakage.
 (2) Description of the Prior Art
 Recently, the inventor of the present invention acquired a US patent
 regarding a coaxial cable connector titled "Flat F-port coaxial electrical
 connector". This patent is published in U.S. Pat. No. 6,113,431 dated Sep.
 5, 2000. In aforesaid patent, an improvement was made to eliminate
 shortcomings arose from the conventional technique wherein a plastic
 terminal was directly riveted to the connector body after fitted with an
 annular collar, and in stead, in the aforesaid patented invention, flat
 sections at the two extremities of the cable connector body were formed in
 order to maintain flatness and smoothness when it was engaged with a
 F-type male connector thereby preventing electromagnetic signal leakage.
 After being carried out further study and experimentation, the present
 inventor discovered there is still an improvement can be made for
 engagement technique of the aforesaid invention between the containment
 hole and the second insulating adapter so that production cost can be
 further reduced and manufacturing efficiency more improved, and similarly,
 there will be formed flat surfaces at both side of the connector body
 terminal.
 SUMMARY OF THE INVENTION
 Accordingly, it is a main object of the present invention to provide a flat
 F-port coaxial electrical connector having an annular stopper protrusion
 to be inlaid into and fixedly engaged with a second insulating adapter of
 the terminal structure.
 It is another object of the present invention to provide a flat F-port
 coaxial electrical connector having an annular sleeve provided at a port
 formed in the connector body so as to form planar surfaces at the
 connector body terminal, and by engaging the annular sleeve fixedly with
 the terminal structure, when the connector body is engaged with a F-port
 male connector, the mating surfaces can be maintained in smooth and
 finished state thereby preventing electromagnetic signal leakage.
 For fuller understanding of the nature and objects of the invention,
 reference should be made to the following detailed description taken in
 conjunction with the accompanying drawings below. Meanwhile, the
 accompanying drawings are provided for purposes of reference and
 explanation, and by no means are construed as limitations applicable to
 the invention herein.

DETAILED DESCRIPTION OF THE INVENTION
 Referring to FIG. 1 and FIG. 2, simultaneously, the flat F-port coaxial
 electrical connector in a first embodiment of the present invention
 comprises a connector body 10 and a terminal structure 20.
 Referring to FIG. 3, the connector body 10 further includes a threaded
 section 11, a hexagonal section 12, a first planar section 13, and a
 second planar section 14. A containment hole 15 having a diameter enough
 to accept the terminal structure 20 is formed in the connector body 10.
 The inner space of the containment hole 15 is terminated at an annular
 flat bottom 16. An annular stopper protrusion 17 is formed in the
 container hole 15 near the second planar section 14 so as to detain
 fixedly the terminal structure 20 thereat, and a conical portion 18 formed
 at the fringe of the stopper protrusion 17 is for facilitating the
 terminal structure 20 to slip into the containment hole 15.
 As shown in FIG. 4, the terminal structure 20 includes a first insulation
 adapter 21 and a second insulation adapter 22. These first and second
 insulation adapters 21, 22 include respectively outer enclosure sections
 23, 24 and elastic annular clipping sections 25, 26. A tubular contact
 member 27 is interlaid between the two clipping sections 25, 26. A flare
 inlet is formed near the terminal of the tubular contact member 27 for
 accepting insertion of a F-type male connector to achieve electrical
 connection. Both first and second insulating adapter 21, 22 are made of
 plastic materials such as PE, PP, PC or other rubber.
 In connecting to a flat F-port coaxial electrical connector with a coaxial
 cable, at first, inserting the terminal structure 20 into the containment
 hole 15 of the connector body 10 until the terminal of the first
 insulation adapter 21 mates with the annular flat bottom 16. As shown in
 FIG. 1, the annular stopper protrusion 17 is able to forcibly inlay into
 the outer surface of the second insulation adapter 22 by a compressive
 force given rise by properly designed mutually relating size between the
 containment hole 15 and the second insulation adapter 22. As a result, the
 terminal structure 20 can be securely and reliably fixed in the connector
 body 10 and keep smoothness and flatness of the nearly surfaces where the
 coaxial electrical connector of the present invention is mating with the
 F-type male connector.
 Referring to FIG. 5, the flat F-port coaxial electrical connector in a
 second embodiment of the present invention comprises a connector body 30,
 a terminal structure 20, and an annular sleeve 40.
 Referring to FIG. 6, the connector body 30 further includes a threaded
 section 31, a hexagonal section 32, a first planar section 33, and a port
 34. A containment hole 35 having a diameter enough to accept the terminal
 structure 20 is formed in the connector body 30. The inner space of the
 containment hole 35 is terminated at an annular flat bottom 36. An annular
 groove 37 is formed in the containment hole 35 at the terminal of the port
 34, and the inner portion of the annular groove 37 is terminated at
 another annular flat bottom 38.
 In the second embodiment, the terminal structure 20 also includes a first
 insulation adapter 21, a second insulation adapter 22, and a tubular
 contact member 27 as shown in FIG. 4.
 Referring to FIGS. 4 and 7, the inner portion of the annular sleeve 40
 defines a through hole 41 forming an annular stopper protrusion 42 at its
 end thereof for fixedly detaining the second insulation adapter 22
 therewith. The contact surface between the stopper protrusion 42 and the
 through hole 41 is formed into a conical portion 43 so as to facilitate
 insertion of the first and the second insulation adapters 21 and 22 into
 the through hole 41.
 In connecting a flat F-port coaxial electrical connector with a coaxial
 cable, at first, pushing the annular sleeve 40 into the annular groove 37
 in the connector body 30 until the terminal of the sleeve 40 mates with
 the annular flat bottom 38 as so to bring the annular sleeve 40 in
 engagement with the annular groove 37. With this structure, the port 34 of
 the connector body 30 is formed into a planar portion 39 as shown in FIG.
 8. Finally, inserting the terminal structure 20 into the containment hole
 35 of the connector body 30 until the terminal of the first insulation
 adapter 21 mates with the annular flat bottom 36. As shown in FIG. 5, the
 annular stopper protrusion 42 is able to forcibly inlay into the outer
 surface of the second insulation adapter 22 by a compressive force given
 rise by properly designed mutually relating size between the containment
 hole 35 and the second insulation adapter 22. As a result, the terminal
 structure 20 can be securely and reliably fixed in the connector body 30.
 Referring to FIG. 9, the flat F-port coaxial electrical connector in a
 third embodiment of the present invention comprises a connector body 30, a
 terminal structure 50, and an annular sleeve 60.
 As shown in FIGS. 9, 10, the terminal structure 50 further includes a first
 insulation adapter 51, a second insulation adapter 52, and a tubular
 contact member 53. The first and the second insulation adapters 51 and 52
 are made of plastic materials. An annular outer enclosure 54 on the second
 insulator adapter 52 has an annular recessed slot 55 on its outer surface
 thereof.
 Referring to FIG. 11, the annular sleeve 60 is made of metallic material; a
 through hole 61 is formed within the sleeve 60. An annular stopper
 protrusion 62 is formed in the through hole 61 so that the stopper
 protrusion 62 can be inlaid in annular recessed slot 55 of the second
 insulation adapter 52 and fixed therein. The contact surface between the
 stopper protrusion 62 and the through hole 61 is formed into a conical
 portion 63 so as to facilitate insertion of the first and second
 insulation adapters 51 and 52 into the through hole 61.
 In connecting a flat F-port coaxial electrical connector with a coaxial
 cable, let us refer to FIGS. 6, 11 and 12, at first, pushing the annular
 sleeve 60 into the annular groove 37 in the connector body 30 until the
 terminal of the sleeve 60 mates with the annular flat bottom 38 so as to
 bring the annular sleeve 60 in engagement with the annular groove 37. With
 this structure, the port 34 of the connector body 30 is formed into a
 planar portion 39. Finally, inserting the terminal structure 50 into the
 through hole 61 of the sleeve 60 until the terminal of the first
 insulation adapter 51 mates with the annular flat bottom 36. By so, the
 annular recessed slot 55 and the stopped protrusion 62 are firming engaged
 with each other as shown in FIG. 9. As a result, the terminal structure 50
 is securely and reliably fixed in the connector body 30.
 While it will be apparent that the preferred embodiments of the invention
 disclosed are well calculated to provide the advantages and features above
 stated, it will be appreciated that the invention is susceptible to
 modification, variation and change without departing from the proper scope
 or fair meaning of the subjoined claims.