CN108134288B - Radio frequency coaxial adapter - Google Patents

Radio frequency coaxial adapter Download PDF

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Publication number
CN108134288B
CN108134288B CN201711491802.7A CN201711491802A CN108134288B CN 108134288 B CN108134288 B CN 108134288B CN 201711491802 A CN201711491802 A CN 201711491802A CN 108134288 B CN108134288 B CN 108134288B
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China
Prior art keywords
insulator
shell
inner conductor
contact
contact shell
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Active
Application number
CN201711491802.7A
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Chinese (zh)
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CN108134288A (en
Inventor
武向文
申啸
党作红
鲍宜云
韩晓
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Avic Forstar S&t Co ltd
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Avic Forstar S&t Co ltd
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Priority to CN201711491802.7A priority Critical patent/CN108134288B/en
Publication of CN108134288A publication Critical patent/CN108134288A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/502Bases; Cases composed of different pieces
    • H01R13/504Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together

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  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The invention belongs to the technical field of coaxial adapters, and particularly relates to a radio frequency coaxial adapter which comprises a contact head shell, an inner conductor, a first insulator, a second insulator and a plastic shell, wherein the inner conductor is axially sleeved in the contact head shell, the second insulator and the first insulator are sequentially connected between the contact head shell and the inner conductor from left to right, the plastic shell is sleeved on the contact head shell outside the second insulator and the first insulator, the problems that a large amount of raw materials are consumed, the production efficiency is low, the cost is high and the productivity is small when a long cylindrical revolving body is machined by using a traditional machine tool such as turning or milling are solved, and the defect that the strength and the rigidity of the cylindrical revolving body shell coiled by punching are poor is overcome. The invention has low mass production cost, high processing efficiency, stable signal and very convenient use.

Description

Radio frequency coaxial adapter
Technical Field
The invention belongs to the technical field of coaxial adapters, and particularly relates to a radio frequency coaxial adapter.
Background
The existing coaxial adapter is characterized in that it has an inner conductor, an outer conductor, and an insulator interposed between the inner and outer conductors. The inner conductor may be hollow or solid. At both ends of the coaxial adapter, connectors are attached to achieve mechanical and electrical coupling of the coaxial adapter.
The coaxial adapter is used in the adapter industry for many years, product parts are mainly machined by traditional machine tools such as turning or milling, raw materials are bars or pipes, and parts which are required to be machined due to assembly have the characteristic of uneven wall thickness, and the coaxial adapter has the advantages of more consumable materials, low machining efficiency, high cost and small productivity.
The existing design is wrapped by stamping or bending technology to form a cylindrical outer conductor, the outer conductor has the characteristic of uniform wall thickness, saves materials and has high production efficiency, but because the shell is provided with a splicing gap, the shell can be expanded when the shell is subjected to the expansion force of an insulator assembled in the shell, the retention force between the outer conductor and the insulator is influenced, meanwhile, the electrical performance of the radio frequency coaxial adapter can be reduced, and even if the retention force between the outer conductor and the insulator can be improved by adopting a method of welding or surface mounting of a shell and the like, the cost is increased, and the efficiency is low. Therefore, it is necessary to design a coaxial adapter that has stable performance, high processing efficiency, and low cost for the connector field.
Disclosure of Invention
The invention aims to solve the problems of more consumed materials, poor splicing strength and rigidity or high manufacturing cost of the radio frequency coaxial adapter in the prior art.
The invention provides a radio frequency coaxial adapter which comprises a contact head shell, an inner conductor, a first insulator, a second insulator and a plastic shell, wherein the inner conductor is sleeved in the contact head shell in an axial direction, the second insulator and the first insulator are connected between the contact head shell and the inner conductor in sequence from left to right, and the plastic shell is sleeved on the contact head shell outside the second insulator and the first insulator.
Round holes are uniformly formed in the circumference of the contact shell, and a first groove is formed in the first insulator.
And one end of the radio frequency coaxial adapter is an interface end, and the interface end of the contact head shell is provided with a clamping groove mechanism extending along the circumferential direction of the contact head shell.
The edge of the interface end of the contact housing is provided with a radially inward chamfer and a plurality of radially outward projecting first collars.
The bulge arranged on the inner conductor is positioned at the joint of the first insulator, and the bulge is uniformly arranged in the circumferential direction.
The interface end of the inner conductor is sequentially provided with a curled edge, a closed edge and a second convex ring from the edge to the inside in the axial direction, the curled edge is curled outwards in the radial direction, the closed edge is inwards in the radial direction, and the second convex ring is outwards in the radial direction.
The interface end of the contact head shell is provided with first grooves extending inwards along the axial direction, the first grooves are uniformly arranged along the circumferential direction of the contact head shell, the interface end of the inner conductor is provided with second grooves extending inwards along the axial direction, and the second grooves are uniformly arranged along the circumferential direction of the inner conductor.
The contact head shell and the inner conductor are cylindrical revolution bodies, the wall thickness is uniform, and a second groove or an outward second protrusion which is recessed inwards in the radial direction is arranged on the plastic shell.
The invention has the beneficial effects that: the radio frequency coaxial adapter provided by the invention adopts the design of stamping, wrapping and insert injection molding assembly, and solves the problems that the existing long cylindrical outer conductor and inner conductor processed by the traditional machine tool such as turning or milling have more consumed materials and the cylindrical outer conductor formed by stamping, wrapping and rolling has poor strength and rigidity; meanwhile, all parts are forged by a die or injection molded, so that the production cost is effectively saved, and the consistency of products in the same batch is improved. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic view of a partial cross-sectional structure of a RF coaxial adapter of the present invention;
FIG. 2 is a schematic structural view of the inner conductor assembled with the contact housing;
FIG. 3 is a schematic view of a partial cross-sectional structure of an inner conductor and an insulator;
fig. 4 is a schematic structural diagram of the assembled rf coaxial adapter.
Reference numerals illustrate: 1. a contact housing; 11. a round hole; 12. a slot mechanism; 13. a first slot; 14. chamfering; 15. a first collar; 2. an inner conductor; 21. a protrusion; 22. a second convex ring; 23. closing in; 24. hemming; 25. a second slot; 3. a first insulator; 31. a first groove; 4. a second insulator; 5. a plastic housing; 51. a second groove; 52. and a second protrusion.
Detailed Description
Example 1:
as shown in fig. 1-4, a radio frequency coaxial adapter is characterized in that: the contact comprises a contact shell 1, an inner conductor 2, a first insulator 3, a second insulator 4 and a plastic shell 5, wherein the inner conductor 2 is sleeved in the contact shell 1 in an axial mode, the second insulator 4 and the first insulator 3 are sequentially connected between the contact shell 1 and the inner conductor 2 from left to right, and the plastic shell 5 is sleeved on the contact shell 1 outside the second insulator 4 and the first insulator 3; the design of the radio frequency coaxial adapter by punching, wrapping and insert injection molding overcomes the problems that the existing long cylindrical outer conductor and inner conductor processed by the traditional machine tool such as turning or milling have more consumed materials and the cylindrical outer conductor formed by punching, wrapping and rolling has poor strength and rigidity; meanwhile, all metal parts are formed by forging and pressing by adopting a die, all plastic parts are directly formed by injection molding on a material belt after metal forging and pressing, and the plastic parts can be processed and produced in a large batch, are convenient to package and store, effectively save the production cost and improve the consistency of products in the same batch.
Example 2:
as shown in fig. 2, on the basis of embodiment 1, round holes 11 are uniformly formed in the circumferential direction of the contact housing 1, and a first groove 31 is formed in the first insulator 3; the plastic shell 5 is manufactured by adopting a low-temperature injection molding process on the surface of the contact shell 1 in a plate material state, and when the plastic shell 5 is subjected to injection molding, the plastic shell flows into the first groove 31 of the first insulator 3 through the round hole 11 on the surface of the contact shell 1, so that the whole installation and fixation of the adapter are realized, and the defect of poor strength and rigidity of the contact shell formed by punching, wrapping and shaping is overcome through effective wrapping of the plastic shell 5.
Furthermore, one end of the radio frequency coaxial adapter is an interface end, and the interface end of the contact head shell 1 is provided with a clamping groove mechanism 12 extending along the circumferential direction of the contact head shell 1; the edge of the interface end of the contact housing 1 is provided with a radially inward chamfer 14 and a plurality of radially outward protruding first collars 15; when the radio frequency coaxial adapter and the other connector are mutually inserted, the mutually matched insertion end is the interface end of the adapter; the chamfer 14 and the first collar 15 allow for a certain radial offset (i.e. radial misalignment) when the interface end of the adapter is plugged into the other connector, while providing a guiding function when the adapter is mated with the other connector.
As shown in fig. 3, further, the protrusions 21 provided on the inner conductor 2 are located at the connection position of the first insulator 3, and the protrusions 21 are uniformly circumferentially arranged. The protrusions 21 serve to better fix the first insulator 3.
As shown in fig. 3, further, the interface end of the inner conductor 2 is provided with a curled edge 24, a closed end 23 and a second convex ring 22 from the edge to the inner side in sequence, the curled edge 24 is curled radially outwards, the closed end 23 is radially inwards, and the second convex ring 22 is radially outwards. After the second convex ring 22 enables the inner conductor 2 to be spliced with the other connector, the pin head of the other connector can have larger deflection space at the second convex ring 22, so that bending pins are avoided; the bead 24 may act as a guide for the pins of the other connector when the adapter is plugged into the other connector.
Further, the interface end of the contact housing 1 is provided with a first slot 13 extending inwards along the axial direction, the first slot 13 is uniformly arranged along the circumferential direction of the contact housing 1, the interface end of the inner conductor 2 is provided with a second slot 25 extending inwards along the axial direction, and the second slot 25 is uniformly arranged along the circumferential direction of the inner conductor 2. The plurality of first grooves 13 are uniformly arranged in the circumferential direction of the contact housing 1. The arrangement of the first slots 13 can lead the end part of the contact housing 1 to be decomposed into a plurality of elastic sheets which are ejected outwards along the radial direction, and when the contact housing 1 is matched with the other connector, the contact housing 1 can keep good elastic contact with the other connector; the contact housing 1 maintains good elastic contact with the other connector pin even when the inner diameter of the other connector is erroneous due to the circular shape of the manufacturing process. The arrangement of the plurality of second grooves 25 can lead the end part of the inner conductor 2 to be decomposed into a plurality of elastic sheets which are ejected outwards along the radial direction, and when the inner conductor 2 is matched with the other connector pin, the inner conductor 2 can keep good elastic contact with the other connector pin; the inner conductor 2 and the other connector pin can maintain good elastic contact even when the outer diameter of the other connector pin is erroneous due to the circular shape of the manufacturing process.
Further, the contact housing 1 and the inner conductor 2 are cylindrical revolution bodies, and are rolled, formed and have uniform wall thickness, and the plastic housing 5 is provided with a second groove 51 recessed inwards or a second protrusion 52 protruding outwards in the radial direction. The contact shell 1 and the inner conductor 2 are manufactured by adopting a metal forging and rolling process, the raw materials are metal plates with uniform thickness, and the contact shell 1 and the inner conductor 2 are stored in a material belt mode after forging and rolling and forming, so that the contact shell is convenient to transport, safe to store and convenient for later product assembly. The wall thickness of the contact shell 1 and the wall thickness of the inner conductor 2 after forging are uniform, so that materials can be saved, the production efficiency is increased, and the manufacturing cost is reduced.
The working principle of the invention is as follows: the contact shell 1 is provided with a round hole 11 which is injected and encapsulated with the plastic shell 5, when the plastic shell 5 is injected for the second time, the injection molding material wraps the contact shell 1, and the injection molding material enters the first groove 31 of the first insulator through a plurality of round holes 11 on the contact shell 1, so that the whole installation and fixation of the adapter are realized.
The invention has the beneficial effects that: the design of the radio frequency coaxial adapter by punching, wrapping and insert injection molding overcomes the problems that the existing long cylindrical outer conductor and inner conductor processed by the traditional machine tool such as turning or milling have more consumed materials and the cylindrical outer conductor formed by punching, wrapping and rolling has poor strength and rigidity; meanwhile, all metal parts are formed by forging and pressing by adopting a die, all plastic parts are directly formed by injection molding on a material belt after metal forging and pressing, and the plastic parts can be processed and produced in a large batch, are convenient to package and store, effectively save the production cost and improve the consistency of products in the same batch.
The structures, proportions, sizes, etc. shown in the drawings attached hereto are for illustration purposes only and are not intended to limit the scope of the invention, which is defined by the claims, but rather by the claims. Also, the terms such as "upper", "lower", "left", "right", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the invention for which the invention may be practiced or for which the relative relationships may be altered or modified without materially altering the technical context.
The foregoing examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and all designs that are the same or similar to the present invention are within the scope of the present invention.

Claims (1)

1. A radio frequency coaxial adapter, characterized by: the novel electric contact comprises a contact shell (1), an inner conductor (2), a first insulator (3), a second insulator (4) and a plastic shell (5), wherein the inner conductor (2) is sleeved in the contact shell (1) in an axial mode, the second insulator (4) and the first insulator (3) are sequentially connected between the contact shell (1) and the inner conductor (2) from left to right, and the plastic shell (5) is sleeved on the contact shell (1) outside the second insulator (4) and the first insulator (3);
round holes (11) are uniformly formed in the circumferential direction of the contact shell (1), first grooves (31) are formed in the first insulator (3), one end of the radio frequency coaxial adapter is an interface end, a clamping groove mechanism (12) extending along the circumferential direction of the contact shell (1) is arranged at the interface end of the contact shell (1), a chamfer (14) which is inwards in the radial direction and a plurality of first convex rings (15) which protrude outwards in the radial direction are formed in the edge of the interface end of the contact shell (1), protrusions (21) which are arranged on the inner conductor (2) are located at the joint of the first insulator (3), the protrusions (21) are uniformly formed in the circumferential direction, a plastic shell (5) is manufactured by injection molding on the surface of the contact shell (1), and when the plastic shell (5) is subjected to injection molding, the first grooves (31) which flow into the first insulators (3) through the round holes (11) on the surface of the contact shell (1).
The interface end of the inner conductor (2) is sequentially provided with a curled edge (24), a closed end (23) and a second convex ring (22) from the edge to the inside in the axial direction, the curled edge (24) is curled outwards in the radial direction, the closed end (23) is inwards in the radial direction, and the second convex ring (22) is outwards in the radial direction;
the interface end of the contact shell (1) is provided with first grooves (13) extending inwards along the axial direction, the first grooves (13) are uniformly arranged along the circumferential direction of the contact shell (1), the interface end of the inner conductor (2) is provided with second grooves (25) extending inwards along the axial direction, and the second grooves (25) are uniformly arranged along the circumferential direction of the inner conductor (2);
the contact shell (1) and the inner conductor (2) are cylindrical revolution bodies, are formed by rolling and have uniform wall thickness, and the plastic shell (5) is provided with a second groove (51) or a second protrusion (52) which is recessed inwards along the radial direction.
CN201711491802.7A 2017-12-30 2017-12-30 Radio frequency coaxial adapter Active CN108134288B (en)

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Application Number Priority Date Filing Date Title
CN201711491802.7A CN108134288B (en) 2017-12-30 2017-12-30 Radio frequency coaxial adapter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711491802.7A CN108134288B (en) 2017-12-30 2017-12-30 Radio frequency coaxial adapter

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CN108134288A CN108134288A (en) 2018-06-08
CN108134288B true CN108134288B (en) 2023-12-26

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109728458B (en) * 2018-07-13 2023-09-26 上海雷迪埃电子有限公司 Hybrid radio frequency connector
CN109473837B (en) * 2018-07-13 2023-09-26 上海雷迪埃电子有限公司 Stamping stretching radio frequency connector
CN110932010B (en) * 2019-12-11 2021-10-15 四川华丰科技股份有限公司 Coaxial connector contact element and manufacturing method thereof
CN110867708B (en) * 2019-12-11 2021-06-18 四川华丰科技股份有限公司 Coaxial connector
CN112838336B (en) * 2020-12-31 2022-04-29 驭势科技(北京)有限公司 Radio frequency revolution joint, radio frequency switching system and vehicle

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CN202695808U (en) * 2012-07-17 2013-01-23 四川华丰企业集团有限公司 Radio frequency coaxial connector
CN203180143U (en) * 2013-01-15 2013-09-04 深圳市大富科技股份有限公司 Connector and cavity filter
CN103474821A (en) * 2013-09-26 2013-12-25 鲁建文 Board-to-board shell structure of radio frequency coaxial connector
CN204349020U (en) * 2015-01-23 2015-05-20 上海雷迪埃电子有限公司 Coaxial connector
CN206211101U (en) * 2016-12-05 2017-05-31 安费诺凯杰科技(深圳)有限公司 A kind of low cost, reliability pcb board connection terminal high
CN106785795A (en) * 2017-01-05 2017-05-31 苏州瑞可达连接***股份有限公司 A kind of preparation method of the coaxial board to board connector of low cost radio frequency
CN206432447U (en) * 2017-01-17 2017-08-22 上海雷迪埃电子有限公司 Punching press is molded radio frequency (RF) coaxial connector
CN207664377U (en) * 2017-12-30 2018-07-27 中航富士达科技股份有限公司 A kind of coaxial adatpter

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Publication number Priority date Publication date Assignee Title
CN1835299A (en) * 2006-03-01 2006-09-20 四川华丰企业集团有限公司 RF coaxial connector
CN101964463A (en) * 2010-11-10 2011-02-02 上海航天科工电器研究院有限公司 Radio frequency connector
CN202695808U (en) * 2012-07-17 2013-01-23 四川华丰企业集团有限公司 Radio frequency coaxial connector
CN203180143U (en) * 2013-01-15 2013-09-04 深圳市大富科技股份有限公司 Connector and cavity filter
CN103474821A (en) * 2013-09-26 2013-12-25 鲁建文 Board-to-board shell structure of radio frequency coaxial connector
CN204349020U (en) * 2015-01-23 2015-05-20 上海雷迪埃电子有限公司 Coaxial connector
CN206211101U (en) * 2016-12-05 2017-05-31 安费诺凯杰科技(深圳)有限公司 A kind of low cost, reliability pcb board connection terminal high
CN106785795A (en) * 2017-01-05 2017-05-31 苏州瑞可达连接***股份有限公司 A kind of preparation method of the coaxial board to board connector of low cost radio frequency
CN206432447U (en) * 2017-01-17 2017-08-22 上海雷迪埃电子有限公司 Punching press is molded radio frequency (RF) coaxial connector
CN207664377U (en) * 2017-12-30 2018-07-27 中航富士达科技股份有限公司 A kind of coaxial adatpter

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