CN213936799U

CN213936799U - Double-floating radio frequency coaxial adapter

Info

Publication number: CN213936799U
Application number: CN202023077196.4U
Authority: CN
Inventors: 刘斌; 雷峰涛; 杨普庶; 唐超; 赵娟
Original assignee: Shaanxi Huada Science Technology Co Ltd
Current assignee: Shaanxi Huada Science Technology Co Ltd
Priority date: 2020-12-19
Filing date: 2020-12-19
Publication date: 2021-08-10
Anticipated expiration: 2030-12-19

Abstract

The utility model discloses a double-floating type radio frequency coaxial adapter, which belongs to the technical field of communication and comprises a shell, a threaded sleeve, a first floating adapter, a second floating adapter, a first spring and a second spring, wherein the first floating adapter is movably arranged at one end of the shell through the threaded sleeve; the second floating adapter is movably arranged at the other end of the shell through a step hole, a first spring is arranged between the first floating adapter and the thread sleeve spring base, and a second spring is arranged between the second floating adapter and the first floating adapter. Compared with the prior art, the utility model provides a two coaxial adapters of floating radio frequency can set up different interface at its both ends, satisfies many scenes application demand, and simultaneously, the adapter both ends all can follow axial free floating, and mutually noninterfere, and this adapter is a small-size, blind joining in marriage, push-in adapter, has to connect stably, reliably, operating frequency bandwidth, mechanical electrical property is good, and characteristics such as easily installation.

Description

Double-floating radio frequency coaxial adapter

Technical Field

The utility model belongs to the technical field of communication, especially, relate to a coaxial adapter of two floating type radio frequencies.

Background

The radio frequency coaxial connector (including adapter) is an electrical element which is connected on a cable or installed on instrument equipment to play a role in connection, is widely applied in the aspects of wireless communication and broadcasting, television, radar, navigation, computers, instruments and the like, and is an indispensable element in various radio communication systems and electronic equipment; the coaxial cable is used for transmitting radio frequency signals and is essentially a section of coaxial cable with a connecting structure, and generally consists of an inner conductor, an outer conductor and an insulator, wherein the inner conductor, the outer conductor and the insulator are coaxial.

With the development and development of the radio frequency coaxial adapter, the original adapter with a fixed length is difficult to meet the requirement, and the adapter with a floating function needs to be developed to solve the connection between user boards. The existing floating adapter has the following defects:

1. most of the floating terminals are single-ended floating, and independent floating of different interfaces at two ends cannot be realized;

2. the design of the floating structure in the adapter causes the working frequency to be low, and most of the working frequency is not more than 12 GHz;

3. the design of the spring is unscientific, and the force required by the floating work is too large or too small;

4. the plug contact is unscientific in design, and the situation that the adapter floats to the limit when the plug contact is not plugged in place or is unreliable when the plug contact is plugged in place exists, and the product is slightly floated, butted, plugged and plugged in place and then loosened during work.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a coaxial adapter of two floating type radio frequencies can set up different interface at its both ends, satisfies many scenes application demand, and simultaneously, the adapter both ends all can follow the axial free floating, and mutually noninterfere, and this adapter is a small-size, blind joining in marriage, push-in adapter, has to connect stably, reliably, operating frequency bandwidth, mechanical electrical property is good, and characteristics such as easily installation.

The utility model discloses an above-mentioned problem is solved to following technical means:

the utility model provides a coaxial adapter of two floating type radio frequencies which characterized in that floats adapter, first adapter, the second that floats, first spring and second spring including shell, swivel nut, first, wherein: an internal thread is arranged on the inner wall of one end of the shell, and a stepped hole is formed in the inner wall of the other end of the shell; the first floating adapter is movably arranged at one end of the shell through a threaded sleeve; the second floating adapter is movably arranged at the other end of the shell through a stepped hole; a first spring is arranged between the first floating adapter and the spring base of the screw sleeve; and a second spring is arranged between the second floating adapter and the spring base of the screw sleeve.

Preferably, the middle part of the spring base is protruded to form a limiting table, and two sides of the limiting table are used for abutting against the first spring and the second spring respectively.

Preferably, the first adapter housing of the first floating adapter is coaxially installed in the screw sleeve and is in clearance fit with the screw sleeve, a first outer adapter is arranged at the tail end of the first adapter housing, a first insulator is coaxially arranged inside the first adapter housing, a first inner conductor is coaxially installed inside the first insulator, a first inner plug and a first outer plug are respectively arranged at two ends of the first inner conductor, and a guide plug is further sleeved on the outer wall of the first inner conductor.

Preferably, the second switching casing of the second floating adapter is coaxially installed in the shell and is in clearance fit with the shell, the second switching casing is divided into a front installation cavity and a rear installation cavity by a middle step, a second outer adapter is installed in the front installation cavity, a guide sleeve and a second insulator are sequentially installed in the rear installation cavity from outside to inside, a second inner conductor is coaxially installed in the middle of the second insulator, a second outer jack and a second inner plug-in hole are respectively formed in two ends of the second inner conductor, the second inner plug-in hole is mutually matched with a first inner plug of the first floating adapter, sliding insertion is achieved, and the guide sleeve is mutually matched with a guide head of the first floating adapter, and sliding insertion is achieved.

Preferably, the distance between the spring base and the first adapter housing is 0.5 mm.

Preferably, the distance between the spring base and the second adapter housing is 1.5 mm.

Preferably, the first outer joint is sleeved with a stabilizing ring.

Preferably, the bottom of the second outer joint is provided with a reed.

Preferably, the end of the second adapter housing is provided with a bushing by a shrink riveting process.

Preferably, the second insulator is uniformly provided with a plurality of through holes along the axial direction.

The utility model discloses a coaxial adapter of two floating type radio frequencies has following beneficial effect:

1) the utility model adopts an internal floating and air medium structure, has compact internal design structure, small appearance, wide working frequency band, and good salt fog resistance of parts in the shell;

2) the floating structure design in the utility model meets the floating requirement, and the floating actions at the two ends do not influence each other;

3) the utility model adopts two independent springs to ensure different requirements of different interfaces at two ends on the insertion force;

4) the utility model adopts the design of the contact head, and the contact head is split into the groove and butted after the opening is expanded, thereby ensuring continuous and reliable contact in the work;

5) the utility model adopts a stepped shaft structure and adopts the pin and hole to be inserted, thereby realizing the floating requirement and ensuring the impedance consistency of each coaxial cross section before and after the adapter floats and in the floating process;

6) the internal and external contact elements of the connector adopt PEI insulation support, compared with polytetrafluoroethylene, the internal structure can be prevented from shaking in the insertion butt joint, and the working reliability is improved;

7) the PEI insulation support at the left end (BMA-K end) of the adapter increases air column medium, thereby improving the upper limit use frequency of the connector;

8) the first external joint at the right end (SMP-K end) of the adapter of the utility model adopts a six-groove split design, so that the control of the insertion and extraction force is more precise when the product is inserted;

9) the utility model discloses adopt the threaded connection who scribbles the thread glue between well shell and the swivel nut, improved the fastness and the economic nature of connection.

10) The utility model discloses the design of the inside two floating structures of well adapter can make operating frequency reach 20 GHz.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, and obviously, the drawings in the following 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 according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural diagram of a first floating adapter of the present invention;

fig. 3 is a schematic structural view of a second floating adapter of the present invention;

FIG. 4 is a schematic diagram of the process of inserting the double inner conductors according to the present invention;

fig. 5 is a schematic structural diagram of a second adaptor housing according to the present invention;

FIG. 6 is a schematic view of the guide sleeve and the guide head of the present invention;

fig. 7 is a schematic view of the flange structure of the middle housing of the present invention.

Wherein, 1-shell, 101-flange plate, 102-connecting hole, 2-swivel nut, 201-spring base, 3-first floating adapter, 301-first adapter shell, 302-first external connector, 303-first insulator, 304-first inner conductor, 305-guide head, 306-stabilizing ring, 3041-first inner plug, 3042-first outer plug hole, 4-a second floating adapter, 401-a second adapter housing, 402-a second outer connector, 403-a second insulator, 404-a second inner conductor, 405-a guide sleeve, 406-a reed, 407-a bushing, 4011-a front installation cavity, 4012-a rear installation cavity, 4041-a second outer jack, 4042-a second inner plug hole, 5-a first spring and 6-a second spring.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely 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, are not to be construed as limiting the present invention. 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 7, the double-floating type radio frequency coaxial adapter includes a housing 1, a threaded sleeve 2, a first floating adapter 3, a second floating adapter 4, a first spring 5 and a second spring 6, wherein in the figure, a thread is provided on an inner wall of one end of the housing 1, a step hole is provided on an inner wall of the other end of the housing 1, a flange plate 101 is provided in the middle of the housing 1, and a plurality of connecting holes 102 are symmetrically provided on the flange plate 101.

It should be noted that, the first floating adapter 3 is movably mounted at one end of the housing 1 through the threaded sleeve 2; the second floating adapter 4 is movably arranged at the other end of the shell 1 through a step hole; a first spring 5 is arranged between the first floating adapter 3 and the spring base 201 of the screw sleeve 2; be provided with second spring 6 between the spring base 201 of the unsteady adapter 4 of second and swivel nut 2, the utility model discloses the design of the inside floating structure of product is exquisite, adopts the design of two independent springs, but the number of times of floating, plug number of times are many, and product long service life.

Specifically, the interfaces at the two ends of the adapter are different, and the adapter is not limited to BMA and SMP interfaces, but also applicable to other interfaces. In this embodiment, one end is BMA-K type interface, the other end is SMP-K type interface, and both ends of the adaptor can float freely along the axial direction without mutual interference. The SMP-K type external contact at the right end of the adapter is designed finely, and the insertion and extraction force can be controlled in a small interval when products are butted.

In the figure, the middle part of the spring base 201 protrudes to form a limiting table, and two sides of the limiting table are respectively used for abutting against the first spring 5 and the second spring 6.

As shown in fig. 2, a first adapter housing 301 of the first floating adapter 3 is coaxially installed in the screw sleeve 2 and is in clearance fit with the screw sleeve 2, a first outer adapter 302 is disposed at a tail end of the first adapter housing 301, the first outer adapter 302 is of a six-split groove structure, a stabilizing ring 306 is sleeved on the first outer adapter 302, a first insulator 303 is coaxially disposed inside the first adapter housing 301, the first insulator 303 is of a solid structure, a first inner conductor 304 is coaxially installed inside the first insulator 303, a first inner plug 3041 and a first outer plug 3042 are respectively disposed at two ends of the first inner conductor 304, a guide head 305 is further sleeved on an outer wall of the first inner conductor 304, and an inner through hole and an outer wall of the guide head 305 are interference-assembled on an inner wall of the first adapter housing 301.

As shown in fig. 3, a second adapter housing 401 of the second floating adapter 4 is coaxially mounted in the housing 1 and is in clearance fit with the housing 1, a bushing 407 is disposed at the end of the second adapter housing 401 through a riveting process, the second adapter housing 401 is divided into a front mounting cavity 4011 and a rear mounting cavity 4012 by a middle step, as shown in fig. 5, a second outer connector 402 is mounted in the front mounting cavity 4011, a reed 406 is disposed at the bottom of the second outer connector 402, a guide sleeve 405 and a second insulator 403 are sequentially mounted in the rear mounting cavity 4012 from outside to inside, a second inner conductor 404 is coaxially mounted in the middle of the second insulator 403, and a second outer jack 4041 and a second inner plug-in hole 4042 are disposed at two ends of the second inner conductor 404.

As shown in fig. 4, the second inner socket 4042 is matched with the first inner plug 3041 of the first floating adapter 3 for sliding insertion, and as shown in fig. 6, the guide sleeve 405 is matched with the guide head 305 of the first floating adapter 3 for sliding insertion, so as to perform a guiding docking function.

It should be further noted that the distance S between the spring base 201 and the first adaptor housing 301 is 0.5mm, and the distance L between the spring base 201 and the second adaptor housing 401 is 1.5 mm. At this time, the BMA end floats a distance of 1.5mm max and the SMP end floats a distance of 0.5mm max.

Specifically, the second insulator 403 is symmetrically provided with a plurality of through holes, and an air medium structure is adopted, so that the structure is compact, the appearance is small and exquisite, the working frequency band is wide, and the mechanical and electrical properties are excellent. The embodiment is a double-floating radio frequency coaxial adapter which is small, blind in matching, push-in, high in reliability, wide in working frequency range, excellent in mechanical and electrical performance, and mainly used for floating connection between user boards, and has a wide application prospect.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a coaxial adapter of two floating type radio frequencies, its characterized in that, includes shell (1), swivel nut (2), first adapter (3) that float, the second adapter (4), first spring (5) and second spring (6) that float, wherein:

threads are arranged on the inner wall of one end of the shell (1), and a step hole is formed in the inner wall of the other end of the shell (1);

the first floating adapter (3) is movably arranged at one end of the shell (1) through a threaded sleeve (2);

the second floating adapter (4) is movably arranged at the other end of the shell (1) through a stepped hole;

a first spring (5) is arranged between the first floating adapter (3) and the spring base (201) of the screw sleeve (2);

and a second spring (6) is arranged between the second floating adapter (4) and the spring base (201) of the screw sleeve (2).

2. The double floating type radio frequency coaxial adapter according to claim 1, wherein the middle part of the spring base (201) is protruded to form a limit table, and two sides of the limit table are respectively used for abutting against the first spring (5) and the second spring (6).

3. The dual floating rf coaxial adapter according to claim 2, wherein the first floating adapter housing (301) of the first floating adapter (3) is coaxially installed in the screw sleeve (2) and is in clearance fit with the screw sleeve (2), the first adapter housing (301) is provided with a first outer adapter (302) at a terminal end thereof, a first insulator (303) is coaxially arranged inside the first adapter housing (301), a first inner conductor (304) is coaxially installed inside the first insulator (303), a first inner plug (3041) and a first outer socket (3042) are respectively provided at two ends of the first inner conductor (304), and a guiding plug (305) is further sleeved on an outer wall of the first inner conductor (304).

4. The double-floating type radio frequency coaxial adapter according to claim 3, wherein the second adapter housing (401) of the second floating adapter (4) is coaxially installed on the housing (1) and is in clearance fit with the housing (1), the second adapter housing (401) is divided into a front installation cavity (4011) and a rear installation cavity (4012) by a middle step, the front installation cavity (4011) is internally provided with the second outer connector (402), the rear installation cavity (4012) is sequentially provided with the guide sleeve (405) and the second insulator (403) from outside to inside, the middle of the second insulator (403) is coaxially provided with the second inner conductor (404), the two ends of the second inner conductor (404) are respectively provided with the second outer jack (4041) and the second inner jack (4042), the second inner jack (4042) is matched with the first inner plug (3041) of the first floating adapter (3), and the first floating adapter (3041) is matched with the second floating adapter, Realize sliding insertion, the uide bushing (405) mutually supports, realizes sliding insertion with direction head (305) of first unsteady adapter (3).

5. The dual floating rf coaxial adapter of claim 4, wherein the distance between the spring base (201) and the first adapter housing (301) is 0.5 mm.

6. The dual floating rf coaxial adapter of claim 5, wherein the distance between the spring mount (201) and the second adapter housing (401) is 1.5 mm.

7. The dual floating rf coaxial adapter of claim 6, wherein the first outer joint (302) is sleeved with a stabilizing ring (306).

8. The dual floating radio frequency coaxial adapter according to claim 7, wherein a bottom of the second outer contact (402) is provided with a spring (406).

9. The dual floating radio frequency coaxial adapter of claim 8, wherein the distal end of the second adapter housing (401) is provided with a bushing (407) by a shrink riveting process.

10. The double floating radio frequency coaxial adapter according to claim 9, wherein the second insulator (403) is uniformly provided with a plurality of through holes along an axial direction.