CN214754569U - Floating SMPM coaxial connector structure - Google Patents
Floating SMPM coaxial connector structure Download PDFInfo
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- CN214754569U CN214754569U CN202121030910.6U CN202121030910U CN214754569U CN 214754569 U CN214754569 U CN 214754569U CN 202121030910 U CN202121030910 U CN 202121030910U CN 214754569 U CN214754569 U CN 214754569U
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Abstract
The utility model discloses a floating SMPM coaxial connector structure, include: the center of the outer shell is provided with a mounting hole; the inner conductor is concentrically arranged in the mounting hole, and the mounting hole between the inner conductor and the outer conductor is supported by an insulating medium; the cable shell is connected with one end of the outer shell, and one end of the inner conductor is positioned in the cable shell and connected with the cable; a first annular limiting boss is arranged on the cable shell, and a second annular limiting boss is arranged at one end of the outer shell, which is opposite to the cable shell; the floating assembly is sleeved on the outer ring of the outer shell and positioned between the first annular limiting boss and the second annular limiting boss; the utility model discloses support through fixed insulating medium, coaxial insulating medium between inner conductor and shell body, satisfied inside part mechanical fastening's needs, optimized the electrical property of whole product simultaneously again, the application range of this type of product has been extended to the maximize, has solved the technical bottleneck of current product, and the practicality is strong.
Description
Technical Field
The utility model relates to a microwave communication technical field, concretely relates to floating SMPM coaxial connector structure.
Background
The existing floating type connector is externally provided with a spring and a sliding bush, so that the axial floating of the connector after assembly can be realized, but the similar products are poor in performance when used at high frequency, particularly above 30GHz, due to the fact that all media are filled between an inner conductor and an outer shell, and the application range of the series of products is limited.
SUMMERY OF THE UTILITY MODEL
The technical purpose is as follows: adopt full medium to fill between current floating radio frequency connector inner conductor and the shell body, influence performance and application scope not enough, the utility model discloses a both satisfy internals mechanical fastening's needs, optimized the electrical performance of whole product simultaneously again, the maximize has expanded the floating SMPM coaxial connector structure of the range of application of this type of product.
The technical scheme is as follows: in order to achieve the technical purpose, the utility model adopts the following technical scheme:
a floating SMPM coaxial connector structure disposed within a cluster housing, comprising:
the outer shell is arranged on the outermost ring of the coaxial connector, and a mounting hole is formed in the center of the outer shell;
the inner conductor is concentrically arranged in the mounting hole, and the mounting hole between the inner conductor and the outer conductor is supported by an insulating medium;
the cable shell is connected with one end of the outer shell, and one end of the inner conductor is positioned in the cable shell and connected with the cable; a first annular limiting boss is arranged on the cable shell, and a second annular limiting boss is arranged at one end of the outer shell, which is opposite to the cable shell;
the floating assembly is sleeved on the outer ring of the outer shell and located between the first annular limiting boss and the second annular limiting boss, and the coaxial connector is enabled to float along the length direction when stressed.
Preferably, the utility model discloses an insulating medium includes fixed insulating medium and coaxial insulating medium, and fixed insulating medium sets up the one end of keeping away from the spacing boss of second annular at the shell body, fixed insulating medium cup joint on the inner conductor and with the shell body between interference fit, coaxial insulating medium sets up at the other end that inner conductor is relative with fixed insulating medium, sets up the annular groove that the cross-sectional shape that is used for being connected with coaxial insulating medium is the type of inversion convex on the inner conductor, is transition fit between coaxial insulating medium and the mounting hole.
Preferably, the end of the outer shell of the utility model is provided with a first step hole for concentric connection with the cable shell and a second step hole for installing and fixing the insulating medium;
the diameter of the second stepped hole is smaller than that of the first stepped hole, and a first limiting step is formed between the second stepped hole and the first stepped hole; the diameter of the second step hole is larger than that of the mounting hole, and a second limiting step is formed between the second step hole and the mounting hole;
interference fit is between fixed insulating medium and the second step hole, and the end connection of cable casing and shell body adopts the pressure to press and joins in marriage the structure, and the inside aperture of cable casing is less than the aperture in first step hole, and cable casing will fix insulating medium and compress tightly between first spacing step and the spacing step of second.
Preferably, the utility model discloses a coaxial insulating medium and the material of fixed insulating medium adopt KELF, and fixed insulating medium adopts "honeycomb" structure.
Preferably, the utility model discloses a subassembly that floats includes spring and sliding bush, and spring and sliding bush cup joint on the shell body, and sliding bush is located between spring and the spacing boss of first annular, and the snap ring has been cup jointed to the sliding bush outer lane, and the relative position of snap ring restriction sliding bush and the casing tied in a bundle, when the coaxial connector atress, coaxial connector and sliding bush produce relative movement.
Preferably, the utility model discloses a snap ring adopts C type open structure, sets up the U type draw-in groove that is used for being connected with the snap ring on the slip bush.
Preferably, the line diameter and the number of turns of the spring are selected according to the requirement of floating force.
Preferably, the outer diameter of the inner conductor of the present invention is designed to match the mounting hole diameter of the outer housing according to 50 ohm impedance.
Preferably, the utility model discloses an inner conductor is integrated into one piece, and both ends all are equipped with petal formula fluting interface.
Has the advantages that: the utility model provides a floating SMPM coaxial connector structure has following beneficial effect:
1. the utility model discloses a fixed insulating medium fixes the inner conductor in the shell body, forms the air insulation layer between inner conductor and the shell body, has both satisfied inside part mechanical fastening's needs, can optimize the electrical property of whole product again.
2. The utility model discloses coaxial insulating medium sets up in the mounting hole, and transition fit between the mounting hole, when guaranteeing the axiality, reduces the installation resistance, and the simple installation.
3. The utility model discloses the shell body adopts the pressure to join in marriage the structure with cable housing, connects to dismantle portably to the setting is used for the first step hole of being connected with cable housing is concentric and is used for installing the second step hole of fixed insulating medium, compresses tightly fixed insulating medium at the second step downthehole through cable housing, avoids becoming flexible, and is fixed firm.
4. The utility model discloses the inner conductor is integrated into one piece, and both ends all are equipped with petal formula fluting interface, are convenient for connect, strengthen the reliability of connecting.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a sectional view of the overall structure of the present invention;
FIG. 2 is a sectional view of the outer casing of the present invention;
FIG. 3 is a view of the inner conductor structure of the present invention;
the cable comprises a shell 1, a mounting hole 2, an inner conductor 3, a cable shell 4, a first annular limiting boss 5, a second annular limiting boss 6, a floating assembly 7, a fixed insulating medium 8, a coaxial insulating medium 9, an annular groove 10, a first step hole 11, a second step hole 12, a first limiting step 13, a second limiting step 14, a spring 15, a sliding bush 16, a snap ring 17 and a U-shaped clamping groove 18.
Detailed Description
The present invention will be more clearly and completely described below by way of a preferred embodiment in conjunction with the accompanying drawings, which are not intended to limit the scope of the invention as described herein.
As shown in fig. 1, fig. 2 and fig. 3, the utility model provides a floating SMPM coaxial connector structure, set up in the casing of bundling, form the counting connector of many interfaces, include:
the outer shell 1 is arranged at the outermost ring of the coaxial connector, and the center of the outer shell is provided with a mounting hole 2;
the inner conductor 3 is concentrically arranged in the mounting hole 2, the inner conductor 3 and the mounting hole 2 of the outer conductor are supported through an insulating medium, the outer diameter of the inner conductor 3 is matched with the diameter of the mounting hole 2 of the outer shell according to 50 ohm impedance, the inner conductor 3 is integrally formed, and petal type slotted interfaces are arranged at two ends of the inner conductor;
the cable shell 4 is connected with one end of the outer shell, and one end of the inner conductor is positioned in the cable shell and connected with the cable; a first annular limiting boss 5 is arranged on the cable shell 4, and a second annular limiting boss 6 is arranged at one end of the outer shell 1 opposite to the cable shell;
the floating assembly 7 is sleeved on the outer ring of the outer shell 1 and located between the first annular limiting boss 5 and the second annular limiting boss 6, and when the coaxial connector is stressed, the coaxial connector is enabled to float along the length direction.
The floating assembly 7 of the utility model comprises a spring 15 and a sliding bush 16, the spring 15 and the sliding bush 16 are sleeved on the outer shell, the sliding bush 16 is positioned between the spring 15 and the first annular limiting boss 5, the outer ring 16 of the sliding bush is sleeved with a snap ring 17, the snap ring 17 limits the relative position of the sliding bush 16 and the bundling shell, and when the coaxial connector is stressed, the coaxial connector and the sliding bush move relatively; the snap ring 17 adopts a C-shaped opening structure, the sliding bush 16 is provided with a U-shaped clamping groove 18 used for being connected with the snap ring 17, the wire diameter and the number of turns of the spring 15 are selected according to the requirement of floating force, and in a natural state, the length of the spring 15 and the sliding bush 16 is slightly larger than the distance between the first annular limiting boss 5 and the second annular limiting boss 6, so that certain axial pressure is applied.
The insulating medium of the utility model comprises a fixed insulating medium 8 and a coaxial insulating medium 9, the materials of the coaxial insulating medium 9 and the fixed insulating medium 8 adopt KELF, and the fixed insulating medium 8 adopts a honeycomb structure; the fixed insulating medium 8 is arranged at one end of the outer shell, which is far away from the second annular limiting boss, the fixed insulating medium 8 is sleeved on the inner conductor 3 and is in interference fit with the outer shell 1, and a groove in fit connection with the fixed insulating medium is arranged on the inner conductor 3; the coaxial insulating medium 9 is arranged at the other end of the inner conductor opposite to the fixed insulating medium, the inner conductor 3 is provided with an annular groove 10 which is used for being connected with the coaxial insulating medium and has an inverted convex section shape, and the coaxial insulating medium 9 is in transition fit with the mounting hole.
The end part of the outer shell 1 of the utility model is provided with a first step hole 11 which is concentrically connected with the cable shell 4 and a second step hole 12 which is used for installing and fixing an insulating medium; the diameter of the second stepped hole 12 is smaller than that of the first stepped hole 11, and a first limiting step 13 is formed between the second stepped hole and the first stepped hole; the diameter of the second step hole 12 is larger than that of the mounting hole 2, and a second limit step 14 is formed between the second step hole and the mounting hole.
The utility model discloses an interference fit between fixed insulating medium 8 and second step hole 12, cable housing 4 adopts with shell body 1's end connection to press to join in marriage the structure, cable housing 4's tip and 11 interference fit in first step hole, and cable housing 4's inside aperture is less than the aperture in first step hole 11, and cable housing 4 compresses tightly fixed insulating medium between first spacing step 13 and the spacing step 14 of second.
The utility model provides a floating SMPM coaxial connector structure is when using, penetrate the cable in the cable casing 4 with the end connection of inner conductor 3, then with coaxial connector go into in the casing tied in a bundle, snap ring 17 connects sliding bush 16 and the casing tied in a bundle, makes the relative position of the two fix, when coaxial connector received axial force, but relative sliding bush 16 floated along the axis direction, reduced the impact of junction, avoided causing the damage to coaxial connector.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (9)
1. A floating SMPM coaxial connector structure, sets up in the casing tied in a bundle, its characterized in that includes:
the outer shell (1) is arranged at the outermost ring of the coaxial connector, and the center of the outer shell is provided with a mounting hole (2);
the inner conductor (3) is concentrically arranged in the mounting hole (2), and the inner conductor (3) and the mounting hole (2) of the outer shell are supported through an insulating medium;
the cable shell (4) is connected with one end of the outer shell, and one end of the inner conductor is positioned in the cable shell and connected with the cable; a first annular limiting boss (5) is arranged on the cable shell (4), and a second annular limiting boss (6) is arranged at one end of the outer shell (1) opposite to the cable shell;
the floating assembly (7) is sleeved on the outer ring of the outer shell (1) and located between the first annular limiting boss (5) and the second annular limiting boss (6), and when the coaxial connector is stressed, the coaxial connector is enabled to float along the length direction.
2. A floating SMPM coaxial connector structure according to claim 1, wherein said dielectric comprises a fixed dielectric (8) and a coaxial dielectric (9), the fixed dielectric (8) is disposed at an end of the outer housing away from the second annular limiting boss, the fixed dielectric (8) is sleeved on the inner conductor (3) and is in interference fit with the outer housing (1), the coaxial dielectric (9) is disposed at another end of the inner conductor opposite to the fixed dielectric, the inner conductor (3) is provided with an annular groove (10) having an inverted convex cross-section shape for connection with the coaxial dielectric, and the coaxial dielectric (9) is in transition fit with the mounting hole.
3. A floating SMPM coaxial connector structure according to claim 2, wherein the end of said outer housing (1) is provided with a first stepped hole (11) for concentric connection with the cable housing (4) and a second stepped hole (12) for mounting and fixing the insulating medium;
the diameter of the second stepped hole (12) is smaller than that of the first stepped hole (11), and a first limiting step (13) is formed between the second stepped hole and the first stepped hole; the diameter of the second step hole (12) is larger than that of the mounting hole (2), and a second limiting step (14) is formed between the second step hole and the mounting hole;
interference fit is between fixed insulating medium (8) and second step hole (12), and the end connection of cable casing (4) and shell body (1) adopts the pressure to press and joins in marriage the structure, and the inside aperture of cable casing (4) is less than the aperture of first step hole (11), and cable casing (4) will fix insulating medium and compress tightly between first spacing step (13) and second spacing step (14).
4. A floating SMPM coaxial connector structure as claimed in claim 3, characterized in that the material of the coaxial insulating medium (9) and the fixed insulating medium (8) is KELF and the fixed insulating medium (8) is of "honeycomb" structure.
5. A floating SMPM coaxial connector structure according to claim 1, wherein said floating assembly (7) comprises a spring (15) and a sliding bush (16), said spring (15) and said sliding bush (16) are sleeved on the outer housing, said sliding bush (16) is located between said spring (15) and said first annular limiting boss (5), a snap ring (17) is sleeved on the outer ring of said sliding bush (16), said snap ring (17) limits the relative position of said sliding bush (16) and said cluster housing, when said coaxial connector is forced, said coaxial connector and said sliding bush are moved relatively.
6. A floating SMPM coaxial connector structure as claimed in claim 5, wherein said snap ring (17) is of C-shaped open configuration, and sliding bushing (16) is provided with U-shaped slots (18) for connection with snap ring (17).
7. A floating SMPM coaxial connector structure as in claim 5, wherein the wire diameter and number of turns of the spring (15) are selected according to the requirement of floating force.
8. A floating SMPM coaxial connector structure as claimed in claim 1, characterized in that the outer diameter of the inner conductor (3) is designed to match the diameter of the mounting hole (2) of the outer housing with 50 ohm impedance.
9. A floating SMPM coaxial connector structure according to claim 1, wherein said inner conductor (3) is formed in one piece with a petal slotted interface at both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121030910.6U CN214754569U (en) | 2021-05-14 | 2021-05-14 | Floating SMPM coaxial connector structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121030910.6U CN214754569U (en) | 2021-05-14 | 2021-05-14 | Floating SMPM coaxial connector structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214754569U true CN214754569U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121030910.6U Active CN214754569U (en) | 2021-05-14 | 2021-05-14 | Floating SMPM coaxial connector structure |
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| Country | Link |
|---|---|
| CN (1) | CN214754569U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114792904A (en) * | 2022-03-31 | 2022-07-26 | 上海精积微半导体技术有限公司 | Connector for chip test in floating butt joint |
| CN114927908A (en) * | 2022-05-30 | 2022-08-19 | 德尔特微波电子(南京)有限公司 | SMA cable connector with ultra-small bending radius |
-
2021
- 2021-05-14 CN CN202121030910.6U patent/CN214754569U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114792904A (en) * | 2022-03-31 | 2022-07-26 | 上海精积微半导体技术有限公司 | Connector for chip test in floating butt joint |
| CN114792904B (en) * | 2022-03-31 | 2023-12-29 | 上海精积微半导体技术有限公司 | Connector for chip test of floating butt joint |
| CN114927908A (en) * | 2022-05-30 | 2022-08-19 | 德尔特微波电子(南京)有限公司 | SMA cable connector with ultra-small bending radius |
| CN114927908B (en) * | 2022-05-30 | 2023-01-24 | 德尔特微波电子(南京)有限公司 | Super small bending radius SMA cable connector |
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