CN114421243B - Radio frequency coaxial connector - Google Patents
Radio frequency coaxial connector Download PDFInfo
- Publication number
- CN114421243B CN114421243B CN202111541279.0A CN202111541279A CN114421243B CN 114421243 B CN114421243 B CN 114421243B CN 202111541279 A CN202111541279 A CN 202111541279A CN 114421243 B CN114421243 B CN 114421243B
- Authority
- CN
- China
- Prior art keywords
- cavity
- inner conductor
- fixing piece
- coaxial connector
- jack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004020 conductor Substances 0.000 claims abstract description 66
- 239000000463 material Substances 0.000 claims description 8
- 229910000906 Bronze Inorganic materials 0.000 claims description 4
- 229910052790 beryllium Inorganic materials 0.000 claims description 4
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000010974 bronze Substances 0.000 claims description 4
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/10—Sockets for co-operation with pins or blades
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
Abstract
The invention discloses a radio frequency coaxial connector, which comprises an outer conductor and an inner conductor, wherein the inner conductor is fixed in an inner cavity of the outer conductor through an insulating support; the tail end of the inner conductor comprises a jack; a containing cavity is formed in the jack; the radio frequency coaxial connector also comprises a fixing piece positioned in the accommodating cavity; the fixing piece comprises a main body with an annular structure, and an elastic sheet extends from one side end of the main body to the tail end of the inner conductor; the fixing piece comprises at least two elastic sheets, and the two elastic sheets are uniformly arranged along the circumference of the fixing piece. The invention effectively solves the problem that the accuracy of the test result of the connector and the cable assembly products is affected due to the fact that the closing-up of the connecting jack is not tight caused by repeated plugging and pulling in the test of the existing radio frequency coaxial connector.
Description
Technical Field
The invention relates to the technical field of electric connectors. And more particularly to a radio frequency coaxial connector.
Background
The connection of the radio frequency coaxial connector is achieved through the insertion contact of the contact element, and the reliability of the contact element plays a decisive role in the electric connection of the connector. The contacts may be divided into pin contacts and socket contacts. In the production and manufacture of radio frequency connectors and radio frequency cable assemblies, it is often necessary to test electrical performance indicators, and there is a high requirement for the mating contact performance of the test adapter. At present, the inner conductor 10 of the radio frequency connector socket basically adopts slotted elastic connection of the jack 20, the used material is generally beryllium bronze, a certain number of slots with a certain depth, generally two slots or four slots, are uniformly processed on the hole wall of the inner conductor 10 of the jack, and the mouth of the jack 20 is closed and then subjected to heat treatment, so that the jack has certain elasticity, as shown in fig. 1 and 2.
The connector connection mode has simple structure, but the discontinuity of the slotting part results has influence on the electrical performance index of the transmission signal, especially for the situation of high use frequency. In the actual test, after the number of plugging times is too large, the opening of the jack is enlarged, plastic deformation is outwards generated, the loose closing of the jack is not tight, and poor contact is caused, so that the test result is deviated. The adapter needs to be replaced at this time, so that the consumption of the adapter is usually high under the condition of large test product quantity, and the problem of gradually deteriorating test accuracy also exists in the test process.
Disclosure of Invention
In view of the above problems, the present invention provides a radio frequency coaxial connector, so as to solve the problem that the closing-up of a connection jack is not tight due to multiple plugging and pulling in the test of the radio frequency coaxial connector, and the accuracy of the test results of the connector and the cable assembly products is affected.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a radio frequency coaxial connector, which comprises an outer conductor and an inner conductor, wherein the inner conductor is fixed in an inner cavity of the outer conductor through an insulating support;
the tail end of the inner conductor comprises a jack; a containing cavity is formed in the jack;
the radio frequency coaxial connector also comprises a fixing piece positioned in the accommodating cavity;
the fixing piece comprises a main body with an annular structure, and an elastic sheet extends from one side end of the main body to the tail end of the inner conductor;
the fixing piece comprises at least two elastic sheets, and the two elastic sheets are uniformly arranged along the circumference of the fixing piece.
In addition, preferably, the fixing member is formed by rolling a plate-shaped sheet around an axis, the sheet includes a plurality of U-shaped notches, and the elastic sheet is formed by a sheet structure formed by a plurality of U-shaped notch partition sheets.
Furthermore, preferably, the accommodating cavity comprises a first cavity and a second cavity; the second cavity is positioned at one side of the first cavity close to the tail end of the inner conductor, and the inner diameter of the second cavity is larger than that of the first cavity;
the end part of the elastic sheet, which is far away from the main body, is arranged corresponding to the second cavity.
Furthermore, preferably, the end of the elastic piece far away from the main body comprises a folded edge which is bent outwards, and at least the folded edge is arranged corresponding to the second cavity.
Furthermore, preferably, a step structure is formed at the joint of the second cavity and the first cavity; the step structure is located at one side of the folded edge, which is away from the tail end of the inner conductor.
In addition, preferably, the material of the inner conductor is brass gold-plated; the fixing piece is made of beryllium bronze.
The beneficial effects of the invention are as follows:
the invention provides a novel radio frequency coaxial connector structure, wherein an existing inner conductor grooving structure is abandoned by improving the assembly structure of an inner conductor and a cable wire core (or a contact pin), a fixing piece is arranged in an inner cavity formed by an inner conductor jack, and when the cable wire core (or the contact pin) is inserted into the jack from the tail end of the inner conductor through the fixing piece, the fixing piece is spread and tightly covered and fixed with the cavity wall of the inner cavity formed by the jack, so that the plugging contact performance of the connector is effectively improved.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
Fig. 1 shows a schematic diagram of the fit between an inner conductor and a cable core (or pin) in a prior art rf coaxial connector structure.
Fig. 2 is a schematic diagram of a partial structure of an inner conductor in the structure of the rf coaxial connector according to the present invention.
Fig. 3 is a schematic diagram illustrating the matching of the inner conductor, the fixing member and the cable core (or the pin) in the rf coaxial connector structure according to the present invention.
Fig. 4 is a schematic view showing an unfolding structure of a fixing piece in the structure of the rf coaxial connector provided by the invention.
Fig. 5 is a schematic structural view of a fixing member in the structure of the rf coaxial connector provided by the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The method aims at solving the problems that the closing-up of the connecting jack is not tight due to repeated plugging in the test of the existing radio frequency coaxial connector, and the accuracy of the test results of the connector and the cable assembly products is affected. The invention provides a novel radio frequency coaxial connector structure, which is shown in fig. 1 to 5, in particular to a radio frequency coaxial connector, comprising an outer conductor and an inner conductor 1 fixed in an inner cavity of the outer conductor through an insulating support. Wherein, the tail end of the inner conductor 1 comprises a jack 11; a containing cavity is formed in the jack 11; the radio frequency coaxial connector also comprises a fixing piece 2 positioned in the accommodating cavity; the fixing member 2 includes a main body 21 having a ring-shaped structure, and an elastic piece 22 extending from one end of the main body 21 toward the tail end of the inner conductor 1. In the present embodiment, the fixing member 2 includes, but is not limited to, six elastic pieces 22, and the six elastic pieces 22 are uniformly arranged along the circumferential direction of the fixing member 2. Optionally, the material of the inner conductor 1 is brass gold-plated; the fixing piece 2 is made of beryllium bronze.
In the scheme provided by the invention, the inner conductor structure corresponding to the jack 11 of the inner conductor 1 is of a continuous integral structure, and compared with the structure of the dovetail groove at the tail end of the existing inner conductor, the integral structure of the inner conductor is stronger and is not easy to deform, the fixing piece is positioned in the inner cavity of the jack of the inner conductor, the fixing piece and the inner conductor form an integral component, and when a cable core (or a contact pin) is inserted into the inner cavity of the jack of the inner conductor, the elastic piece of the fixing piece is spread, so that the inner conductor and the cable core (or the contact pin) can be stably combined through the fixing piece, and tight contact can be formed between the inner conductor and the cable core (or the contact pin) through the fixing piece, so that the radio frequency coaxial connector has good electrical performance in a wider frequency band. Moreover, as the inner conductor structure corresponding to the inner conductor jack is a continuous integral structure, the inner wall of the inner conductor jack cavity can restrict the elastic sheet not to excessively expand the jack opening size, but to be limited to open or recover in the jack limiting size, so that the inner conductor can be ensured to keep consistent performance indexes after being plugged and unplugged for many times, thereby solving the problem of large damage consumption of the adapter caused by a large number of product tests, reducing the cost of a test tool and improving the test accuracy.
In one embodiment, as shown in fig. 4, the fixing member 2 is formed by folding a plate-like sheet material around an axis, the sheet material includes a plurality of U-shaped notches 23, and the elastic sheet 22 is formed by a sheet structure formed by dividing the sheet material by the plurality of U-shaped notches 23.
To increase the bonding strength between the fixing member 2 and the inner wall of the cavity of the jack 11 of the inner conductor 1 after the cable core 3 (or the pin) is inserted into the cavity formed by the jack 11 of the inner conductor 1, in a preferred embodiment, referring to fig. 2, the cavity includes a first cavity 111 and a second cavity 112; the second cavity 112 is located at a side of the first cavity 111 near the tail end of the inner conductor 1, and the inner diameter of the second cavity 112 is larger than the inner diameter of the first cavity 111. The end of the elastic piece 22 away from the main body 21 is disposed corresponding to the second cavity 112. By the arrangement of the second cavity 112, after the cable core 3 (or the pin) is inserted into the fixing member, the free end of the stretched elastic piece 22 can be fixed with the side wall of the second cavity 112 in the axial direction of the connector, so that the stability between the elastic piece 22 and the inner conductor 1 is improved.
In one embodiment, referring to fig. 5, the end of the elastic piece 22 away from the main body 21 includes an outwardly bent flange 221, at least the flange 221 is disposed corresponding to the second cavity 112. The folded edges 221 can increase the contact area and pressure between the free end of the stretched elastic piece 22 and the inner conductor 1, avoid the movement of the cable core 3 (or the contact pin) in the axial direction of the connector, and ensure good electrical conduction performance between the cable core (or the contact pin) and the inner conductor.
Referring to fig. 3, in the present embodiment, a step structure 113 is formed at the junction of the second cavity 112 and the first cavity 111; the step structure 113 is located on the side of the folded edge 221 away from the tail end of the inner conductor 1, that is, the step structure 113 is located on the side of the folded edge 221 away from the port formed by the insertion hole 11 on the end face of the tail end of the inner conductor 1. By the opposite stress design between the step structure 113 and the folded edges 221 of the elastic sheet 22, the free end of the elastic sheet 22 which is spread by the cable core 3 (or the contact pin) and the inner conductor 1 can receive opposite acting force, so that the contact area and the pressure between the fixing piece 2 and the inner conductor 1 are increased in a better mode, and good electric conduction performance is ensured between the cable core 3 (or the contact pin) and the inner conductor 1.
According to the connector structure provided by the invention, after the cable core 3 (or the contact pin) is inserted into the fixing piece 2, the cable core 3 (or the contact pin) and the inner conductor 1 are fixed by utilizing the outward elasticity of the elastic piece 22 on the fixing piece 2, and the contact pressure of the cable core 3 (or the contact pin) and the jack 11 of the inner conductor 1 is derived from the deformation elasticity of the elastic piece 22 on the fixing piece 2, so that the cable core 3 (or the contact pin) is fixed by the elastic piece 22, the function of forming an elastic structure at the front end of the jack of the inner conductor can be achieved, and the situation that an opening formed after repeated insertion and extraction of a slotted jack in the existing inner conductor structure is deformed can be avoided.
It should be understood that the foregoing examples of the present invention are provided merely for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (3)
1. A radio frequency coaxial connector comprising an outer conductor and an inner conductor secured in an inner cavity of the outer conductor by an insulating support; it is characterized in that the method comprises the steps of,
the tail end of the inner conductor comprises a jack; a containing cavity is formed in the jack; the cable core is inserted into the accommodating cavity;
the radio frequency coaxial connector also comprises a fixing piece positioned in the accommodating cavity;
the fixing piece comprises a main body with an annular structure, and an elastic sheet extends from one side end of the main body to the tail end of the inner conductor;
the fixing piece comprises at least two elastic sheets, and the two elastic sheets are uniformly arranged along the circumferential direction of the fixing piece;
the accommodating cavity comprises a first cavity and a second cavity; the second cavity is positioned at one side of the first cavity close to the tail end of the inner conductor, and the inner diameter of the second cavity is larger than that of the first cavity;
the end part of the elastic sheet, which is far away from the main body, is arranged corresponding to the second cavity;
the end part of the elastic sheet far away from the main body comprises an outward bent folded edge, and at least the folded edge is arranged corresponding to the second cavity;
a step structure is formed at the joint of the second cavity and the first cavity; the step structure is located at one side of the folded edge, which is away from the tail end of the inner conductor.
2. The rf coaxial connector of claim 1, wherein the securing member is formed from a sheet of material folded about an axis, the sheet of material including a plurality of U-shaped notches therein, the resilient sheet being formed by a sheet structure of a plurality of U-shaped notch spacer sheets.
3. The rf coaxial connector of claim 1, wherein the inner conductor is gold-plated with brass; the fixing piece is made of beryllium bronze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111541279.0A CN114421243B (en) | 2021-12-16 | 2021-12-16 | Radio frequency coaxial connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111541279.0A CN114421243B (en) | 2021-12-16 | 2021-12-16 | Radio frequency coaxial connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114421243A CN114421243A (en) | 2022-04-29 |
| CN114421243B true CN114421243B (en) | 2023-12-26 |
Family
ID=81267488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111541279.0A Active CN114421243B (en) | 2021-12-16 | 2021-12-16 | Radio frequency coaxial connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114421243B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004014476A1 (en) * | 2004-03-24 | 2005-10-20 | Robert Virant | HF connecting part used in automotive applications comprises an inner conducting end section with an inner conductor crimp to which a soldering tag is molded and an outer conducting end section with an outer conductor crimp |
| CN203910992U (en) * | 2014-06-21 | 2014-10-29 | 常州普纳电子科技有限公司 | Fast-plug-type radio frequency coaxial connector used for testing cable |
| CN207199869U (en) * | 2017-06-08 | 2018-04-06 | 郑州航天电子技术有限公司 | A kind of SMP floating interfacial structures for radio frequency integrated connector |
| CN109659780A (en) * | 2018-12-28 | 2019-04-19 | 成都四威高科技产业园有限公司 | A kind of radio frequency coaxial-cable inserts test connector fastly |
| WO2019113740A1 (en) * | 2017-12-11 | 2019-06-20 | 深圳市华讯方舟微电子科技有限公司 | Radio frequency connection apparatus and manufacturing method therefor |
| CN110086053A (en) * | 2019-05-23 | 2019-08-02 | 德尔特微波电子(南京)有限公司 | A kind of SMA radio frequency (RF) coaxial connector of fast insert-pull |
| WO2021189788A1 (en) * | 2020-03-24 | 2021-09-30 | 苏州诺克斯通讯科技有限公司 | Novel sma-type radio frequency coaxial connector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI241757B (en) * | 2003-05-16 | 2005-10-11 | Parry Chen | RF coaxial conductor |
-
2021
- 2021-12-16 CN CN202111541279.0A patent/CN114421243B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004014476A1 (en) * | 2004-03-24 | 2005-10-20 | Robert Virant | HF connecting part used in automotive applications comprises an inner conducting end section with an inner conductor crimp to which a soldering tag is molded and an outer conducting end section with an outer conductor crimp |
| CN203910992U (en) * | 2014-06-21 | 2014-10-29 | 常州普纳电子科技有限公司 | Fast-plug-type radio frequency coaxial connector used for testing cable |
| CN207199869U (en) * | 2017-06-08 | 2018-04-06 | 郑州航天电子技术有限公司 | A kind of SMP floating interfacial structures for radio frequency integrated connector |
| WO2019113740A1 (en) * | 2017-12-11 | 2019-06-20 | 深圳市华讯方舟微电子科技有限公司 | Radio frequency connection apparatus and manufacturing method therefor |
| CN109659780A (en) * | 2018-12-28 | 2019-04-19 | 成都四威高科技产业园有限公司 | A kind of radio frequency coaxial-cable inserts test connector fastly |
| CN110086053A (en) * | 2019-05-23 | 2019-08-02 | 德尔特微波电子(南京)有限公司 | A kind of SMA radio frequency (RF) coaxial connector of fast insert-pull |
| WO2021189788A1 (en) * | 2020-03-24 | 2021-09-30 | 苏州诺克斯通讯科技有限公司 | Novel sma-type radio frequency coaxial connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114421243A (en) | 2022-04-29 |
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