CN218632714U

CN218632714U - Novel BNC radio frequency coaxial connector's public first structure

Info

Publication number: CN218632714U
Application number: CN202222888754.8U
Authority: CN
Inventors: 罗修敏
Original assignee: Suzhou Chennuo Electronics Co ltd
Current assignee: Suzhou Chennuo Electronics Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-03-14
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a novel BNC radio frequency coaxial connector's public first structure, including first shell, second shell and center conductor, first shell axial is provided with first through-hole, and second shell axial is provided with the second through-hole, and first shell one end holds in the second through-hole of second shell, is provided with the medium in the first through-hole and supports, and the medium supports can be fixed center conductor's one end in first through-hole, and center conductor's the other end passes the second through-hole to do not set up the medium in the second through-hole and support. Compared with the existing BNC radio frequency coaxial connector, the front end of the male connector is filled with PTFE medium, the working frequency of the connector is only 4G, the voltage standing wave is large in a specified working frequency range, and the application of the connector in the field with high frequency is limited. No medium support is arranged in the second through hole at the front end of the male head of the BNC radio-frequency coaxial connector, an air medium structure is adopted, the working frequency can reach 18GHz, and the requirement on higher working frequency is met.

Description

Novel public first structure of BNC radio frequency coaxial connector

Technical Field

The utility model relates to a connector especially relates to a novel BNC radio frequency coaxial connector's public first structure.

Background

The rf coaxial connector is a component attached to a cable or mounted on an instrument, and is electrically connected or disconnected as a transmission line. The BNC radio frequency coaxial connector consists of a central conductor, a medium support for supporting the central conductor and a shell. To ensure product reliability, generally, the center conductor is fixed within a dielectric support, which is fixed in the housing. At present, a polytetrafluoroethylene medium is filled in the front end of a male head of a BNC radio frequency coaxial connector to fix a central conductor, the working frequency of the BNC radio frequency coaxial connector is only 4G, and in a specified working frequency range, voltage standing waves are large, so that the BNC radio frequency coaxial connector is limited in the field of high frequency use.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above disadvantages, an object of the present invention is to provide a male connector structure of a BNC rf coaxial connector, so as to effectively overcome the problems of low working frequency, large voltage standing wave ratio and limited use existing in the use of the existing BNC rf coaxial connector.

In order to achieve the above purpose, the utility model discloses a technical scheme is: the utility model provides a novel public first structure of BNC radio frequency coaxial connector, includes first shell, second shell and centre conductor, first shell axial is provided with first through-hole, second shell axial is provided with the second through-hole, first shell one end hold in the second through-hole of second shell, be provided with the medium in the first through-hole and support, the medium support can with the one end of centre conductor is fixed in the first through-hole, the other end of centre conductor passes the second through-hole, and do not set up the medium in the second through-hole and support. Compared with the existing BNC radio frequency coaxial connector, the front end of the male connector is filled with PTFE medium, the working frequency of the connector is only 4G, the voltage standing wave is large in a specified working frequency range, and the application of the connector in the field with high frequency is limited. No medium support is arranged in the second through hole at the front end of the male head of the BNC radio frequency coaxial connector, an air medium structure is adopted, the working frequency can reach 18GHz, and the requirement of higher working frequency is met.

Further, the media support includes a first media support and a second media support, and the first media support and the second media support are respectively located in the first through hole. Through the arrangement of the first medium support and the second medium support, two supporting points are arranged when the medium support is fixed on the center conductor support, the fixing is more stable, and the center conductor cannot swing in the first through hole.

Furthermore, a supporting groove is formed in the inner wall of the first through hole, the supporting groove is formed in the position, close to one end of the second shell, of the first through hole, the first medium support is arranged in the supporting groove, the first medium support is fixed through the supporting groove, and axial displacement of the first medium support is prevented.

Furthermore, the second through hole is stepped, that is, a boss is arranged on the inner wall of the second through hole, and the first housing is accommodated at one end of the second through hole and abutted against the boss, so that the first housing is axially limited.

Furthermore, the first medium support is positioned at the end part of the first through hole, one side of the first medium support is abutted with the side wall of the support groove, the other side of the first medium support is abutted with the boss, and the first medium support is fixed through the boss. The first medium support is arranged at the end part of the first through hole, so that the distance between the first medium support and the second medium support is increased, and the stability of the medium support for fixing the central conductor is further increased. And the both sides that support first medium through the lateral wall of boss and support recess carry out the centre gripping fixed, in time support first medium and set up the stability that first medium supported also can not influence at first through-hole tip, prevent that first medium from supporting axial position and squint.

The novel energy-saving device is characterized by further comprising a threaded sleeve, one end, far away from the first shell, of the second shell is arranged inside the threaded sleeve, a retainer ring is arranged on the outer surface of the second shell, a radial annular groove is formed in the end, close to the first shell, of the threaded sleeve, the retainer ring is arranged in the annular groove, a spring is arranged between the retainer ring and the inner wall of the annular groove, and when the second shell and the threaded sleeve are far away from each other, the spring is compressed. Through the setting of spring, realize the floating connection of swivel nut and second shell.

Further, one side, far away from the spring, of the retainer ring is provided with a sealing ring, the sealing ring is arranged in the annular groove, one side of the sealing ring is abutted against the retainer ring, and the other side of the sealing ring is abutted against the side wall of the annular groove.

Furthermore, the inner wall of the second through hole is provided with an internal thread, one end of the first shell inserted into the second through hole is provided with an external thread, and the first shell is connected with the second shell through the thread.

The utility model has the advantages that: compared with the existing BNC radio frequency coaxial connector, the front end of the male connector is filled with PTFE (polytetrafluoroethylene) medium, the working frequency of the connector is only 4G, the voltage standing wave is large in a specified working frequency range, and the connector is limited in the field of high frequency use. No medium support is arranged in the second through hole at the front end of the male head of the BNC radio frequency coaxial connector, an air medium structure is adopted, the working frequency can reach 18GHz, and the requirement of higher working frequency is met.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.

Fig. 1 is a cross-sectional view of a connector according to an embodiment of the present invention.

In the figure: 1. a first housing; 11. a first through hole; 111. a support groove; 2. a second housing; 21. a second through hole; 22. a boss; 3. a threaded sleeve; 31. an annular groove; 4. a center conductor; 5. supporting the medium; 51. A first media support; 52. a second media support; 6. a spring; 7. a seal ring; 8. and a retainer ring.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1, the male head structure of the novel BNC radio frequency coaxial connector in this embodiment includes a first housing 1, where the first housing 1 is a cylindrical structure, an axial first through hole 11 is disposed in the first housing 1, a medium support 5 is disposed in the first through hole 11, an outer surface of the medium support 5 abuts against an inner wall of the first through hole 11, a fixing through hole is disposed on the medium support 5, and a direction of the fixing through hole is the same as a direction of the first through hole 11. The cable further comprises a central conductor 4, wherein the central conductor 4 penetrates through the fixing through hole, and the central conductor 4 is fixed through the fixing through hole.

In some embodiments, the dielectric support 5 includes a first dielectric support 51 and a second dielectric support 52, the first dielectric support 51 and the second dielectric support 52 are respectively located at two ends of the first through hole 11, and the first dielectric support 51 and the second dielectric support 52 are disposed at two ends of the first through hole 11, so that the dielectric support fixes the center conductor 4 more firmly, and it is ensured that the center conductor 4 does not swing in the first through hole 11.

In some embodiments, the BNC further comprises a second casing 2, the second casing 2 is provided with an axial second through hole 21, one end of the first casing 1 is accommodated in the second through hole 21, one end of the central conductor 4 is fixed in the first through hole 11, the other end of the central conductor passes through the second through hole 21, and no medium support is provided in the second through hole 21 to fix and support the central conductor 4, compared with the existing BNC male head, which is filled with PTFE (polytetrafluoroethylene) medium, the operating frequency is only 4G, and in a specified operating frequency range, the voltage standing wave is large, and the field with high frequency use is limited. No medium support 5 is arranged in BNC front end second through hole 21 in this application, adopts the air medium structure, and operating frequency can reach 18GHz, satisfies higher operating frequency requirement.

In some embodiments, the inner wall of the second through hole 21 is provided with an internal thread, the end of the first housing 1 inserted into the second through hole 21 is provided with an external thread, and the first housing 1 and the second housing 2 are connected by a thread.

In some embodiments, the inner wall of the first through hole 11 is provided with a support groove 111, the support groove 111 is disposed at one end of the first through hole 11 close to the second housing 2, the first medium support is disposed in the support groove 111, and the first medium support 51 is fixed by the support groove 111 to prevent the first medium support 51 from axial displacement.

In some embodiments, the second through hole 21 is stepped, that is, a boss 22 is formed on an inner wall of the second through hole 21, and the first housing 1 is accommodated in one end of the second through hole 21 and abuts against the boss 22, thereby axially limiting the first housing 1.

In some embodiments, the first medium supporter 51 is located at an end of the first through hole 11, one side of the first medium supporter 51 abuts against a sidewall of the supporting groove 111, and the other side abuts against the boss 22, and the first medium supporter 51 is fixed by the boss 22. By arranging the first dielectric support 51 at the end of the first through hole 11, the distance between the first dielectric support 51 and the second dielectric support 52 is increased, and the stability of the dielectric support 5 for fixing the center conductor 4 is increased. And the first medium support 51 is fixed by the boss 22 and the side wall of the support groove 111, and the arrangement of the first medium support 51 at the end portion does not affect the stability of the first medium support 51, preventing the first medium support 51 from shifting in axial position.

In some embodiments, the device further comprises a threaded sleeve 3, one end of the second housing 2, which is far away from the first housing 1, is arranged inside the threaded sleeve 3, a retaining ring 8 is arranged on the outer surface of the second housing 2, and the retaining ring 8 is clamped with the outer surface of the second housing 2. The threaded sleeve 3 is provided with a radial annular groove 31 at the end close to the first housing 1, the retainer ring 8 is arranged in the annular groove 31, a spring 6 is arranged between the retainer ring 8 and the inner wall of the annular groove 31, and the spring 6 is compressed when the second housing 2 and the threaded sleeve 3 are away from each other. By means of the arrangement of the spring 6, a floating connection of the screw sleeve 3 and the second housing 2 is achieved.

In some embodiments, a side of the retainer ring 8 away from the spring 6 is provided with a sealing ring 7, the sealing ring 7 is arranged in the annular groove 31, and one side of the sealing ring 7 is abutted with the annular protrusion and the other side is abutted with the side wall of the annular groove 31.

In the description of the present invention, it should be understood that the terms "axial" and "radial" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides a public first structure of novel BNC radio frequency coaxial connector, includes first shell (1), second shell (2) and center conductor (4), its characterized in that, first shell (1) axial is provided with first through-hole (11), second shell (2) axial is provided with second through-hole (21), first shell (1) one end hold in second through-hole (21) of second shell (2), be provided with medium support (5) in first through-hole (11), the medium support can with the one end of center conductor (4) is fixed in first through-hole (11), the other end of center conductor (4) passes second through-hole (21), and do not set up the medium in second through-hole (21) and support.

2. The male header structure of the novel BNC radio-frequency coaxial connector according to claim 1, wherein said media support (5) comprises a first media support (51) and a second media support (52), said first media support (51) and said second media support (52) are respectively located in said first through hole (11).

3. The male structure of a novel BNC radio-frequency coaxial connector according to claim 2, wherein a supporting groove (111) is provided on an inner wall of the first through hole (11), the supporting groove (111) is provided at an end of the first through hole (11) close to the second housing (2), and the first medium support (51) is provided in the supporting groove (111).

4. The male structure of a novel BNC radio-frequency coaxial connector according to claim 3, wherein a boss (22) is provided on an inner wall of the second through hole (21), and one end of the first housing (1) received in the second through hole (21) abuts against the boss (22).

5. The male structure of the novel BNC radio-frequency coaxial connector according to claim 4, wherein the first dielectric support (51) is located at the end of the first through hole (11), one side of the first dielectric support (51) abuts against the side wall of the support groove (111), and the other side abuts against the boss (22).

6. The male head structure of a novel BNC radio-frequency coaxial connector according to claim 5, further comprising a threaded sleeve (3), wherein one end of the second housing (2) away from the first housing (1) is disposed inside the threaded sleeve (3), a retaining ring (8) is disposed on an outer surface of the second housing (2), a radial annular groove (31) is disposed on an end portion of the threaded sleeve (3) close to the first housing (1), the retaining ring (8) is disposed in the annular groove (31), a spring (6) is disposed between the retaining ring (8) and an inner wall of the annular groove (31), and when the second housing (2) and the threaded sleeve (3) are away from each other, the spring (6) is compressed.

7. The male head structure of the novel BNC radio-frequency coaxial connector according to claim 6, wherein a side of the retainer ring (8) away from the spring (6) is provided with a sealing ring (7), the sealing ring (7) is disposed in the annular groove (31), and one side of the sealing ring (7) abuts against the retainer ring (8) and the other side abuts against a side wall of the annular groove (31).

8. A novel BNC radio-frequency coaxial connector male head structure according to any one of claims 1 to 7, wherein an inner wall of the second through hole (21) is provided with an internal thread, an end of the first housing (1) inserted into the second through hole (21) is provided with an external thread, and the first housing (1) and the second housing (2) are connected through the thread.