CN213546736U

CN213546736U - SMA type variable length connector

Info

Publication number: CN213546736U
Application number: CN202021972925.XU
Authority: CN
Inventors: 孙博瑶; 张萌; 李祺骏
Original assignee: Shanxi Huada Communication Technology Co ltd
Current assignee: Shanxi Huada Communication Technology Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-06-25
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses an SMA type variable length connector, which structurally comprises an inner conductor I, an inner conductor II, an insulator I, an insulator II and a spring, wherein the inner conductor I, the inner conductor II, the insulator I, the insulator II and the spring are arranged inside a shell; an internal tooth elastic washer and a nut are arranged outside the shell; the inner conductor I and the inner conductor II are fixed through a barb structure, and the inner conductor II and the insulator II are fixed through the barb structure; the shell is fixed with the insulator and the second insulator in a barb structure, the first insulator, the second insulator and the shell play a role in size control and positioning, the spring is installed and placed in the first inner conductor, and the inner tooth elastic washer and the nut are installed and arranged outside the first inner conductor; the utility model can be widely applied to the blind-mate connection between the plates with variable heights, and has the advantages of stable and superior electrical property, small volume and long service life; the utility model discloses compensate the not enough of domestic market, and had very strong development potentiality.

Description

SMA type variable length connector

Technical Field

The utility model relates to a be applied to in radio equipment and the instrument, realize the board to the connecting piece of variable length between the board, specifically speaking is a SMA type variable length connector.

Background

With the development of modern technology, the requirements for connectors in communication, radar, electronic countermeasure, infinite electrical navigation and other systems are higher and higher, especially in terms of electrical performance. And as the requirements of users on the use of products are higher and higher, the design of the radio frequency connector in all aspects is more rigorous.

At present, domestic SMA series products are mostly fixed in length and are not flexible, so that the technical field also has strong development potential in order to make up for the defects of domestic markets.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of how to provide a structure which has simple and reasonable design, the spring is arranged in the product for matching use, the length can be extended and contracted in a certain range, and the utility model can be widely applied to radio equipment and instruments to realize the connection of the board to the board with variable length; the method is suitable for high-density blind plugging among printed boards, chassis and cabinets; various mechanical equipment, communication, power-on fields and transmission of new equipment signals.

In order to solve the technical problem, the utility model discloses a technical scheme be:

an SMA type variable length connector structurally comprises a first inner conductor (1), a second inner conductor (2), a first insulator (3), a second insulator (4) and a spring (6), wherein the first inner conductor (1), the second inner conductor (2), the first insulator (3), the second insulator (4) and the spring (6) are arranged in a shell (5); an internal tooth elastic washer (7) and a nut (8) are arranged outside the shell (5);

the inner conductor I (1) is fixed with the inner conductor II (2) in a barb structure, and the inner conductor II (2) is fixed with the insulator II (4) in a barb structure; the shell (5) is fixed with the insulator (3) and the insulator II (4) through barb structures, the insulator I (3), the insulator II (4) and the shell (5) play a role in size control and positioning, the spring (6) is installed and placed in the inner conductor I (1), and the inner tooth elastic washer (7) and the nut (8) are installed on the outer portion of the inner conductor I.

Preferably, the first inner conductor (1) is press-fitted into the second insulator (4), the second insulator (4) is press-fitted into the shell (5), the spring (6) is placed into the first inner conductor (1) for installation, the first inner conductor (1) is press-fitted into the second inner conductor (2), and then the inner tooth elastic washer (7) and the nut (8) are sequentially installed to install the shell (5).

Preferably, the left end of the first inner conductor (1) is stressed to move smoothly in the hole diameter of the left end of the second inner conductor (2).

Preferably, the elastic force of the spring (6) is arranged between the first inner conductor (1) and the second inner conductor (2), so that the first inner conductor (1) can smoothly move back and forth in the hole at the left end of the second inner conductor (2).

Preferably, the inner conductor I (1), the inner conductor II (2) and the spring (6) are mutually precisely matched, and the total length of the product can be in a telescopic range of 22.8mm-21.8 mm.

Preferably, the first insulator (3), the second insulator (4) and the shell (5) meet the requirement that the holding force is more than or equal to 26.7N.

Preferably, the holding force between the first inner conductor (1) and the second inner conductor (2) and the first insulator (3) and the second insulator (4) is more than or equal to 26.7N.

Preferably, the inner aperture of the left end of the inner conductor II (2) is larger than the diameter of the barb excircle of the inner conductor I (1).

The utility model discloses can the wide application be connected in the blind plug between the variable height between board and the board, not only the electrical property is stable superior, and is small moreover, and life is permanent. The product comprises parts such as a shell, an insulator, an inner conductor, a spring and the like, the parts are tightly matched, the elasticity is stable, and the inner conductor stretches smoothly. When the product is used, the SMA hole end 1/4-36UNS-2A threads penetrate through the mounting hole and then are fixed by the nut, and the other end of the SMA hole end 1/4-36UNS-2A threads is matched with the PCB for use. At present, domestic SMA series products are mostly fixed in length and can not be stretched, and the length of the product can be stretched in a certain range due to the matching use of the internal spring, so that the defects of the domestic market are overcome, and the product has strong development potential. Is a technical innovation of one-time expansibility in the prior art, and has good popularization and use values.

Drawings

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 are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

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

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the internal half-section structure of the present invention;

FIG. 4 is a partial view of the inner conductor of the present invention;

1-an inner conductor one; 2-inner conductor two; 3, a first insulator; 4, a second insulator; 5-a housing; 6-a spring; 7-an internal tooth spring washer; 8-nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to the drawings, in an embodiment of the present invention, an SMA type variable length connector includes an inner conductor 1, an inner conductor 2, an insulator 3, an insulator 4, and a spring 6, which are disposed inside a housing 5; an internal tooth elastic washer 7 and a nut 8 arranged outside the housing 5;

the inner conductor I1 and the inner conductor II 2 are fixed through a barb structure, and the inner conductor II 2 and the insulator II 4 are fixed through a barb structure; the shell 5 is fixed with the insulator 3 and the insulator II 4 through barb structures, the insulator I3, the insulator II 4 and the shell 5 play a role in size control and positioning, the spring 6 is arranged in the inner conductor I1, and the inner tooth elastic washer 7 and the nut 8 are arranged outside the inner conductor I.

In the specific implementation process, the first inner conductor 1 is pressed into the second insulator 4, the second insulator 4 is pressed into the shell 5, the spring 6 is placed into the first inner conductor 1 for installation, the first inner conductor 1 is pressed into the second inner conductor 2, the inner tooth elastic washer 7 and the nut 8 are sequentially installed, and the shell 5 is installed.

In the specific implementation process, the left end of the first inner conductor 1 is stressed to move smoothly in the hole diameter of the left end of the second inner conductor 2.

In the specific implementation process, a spring 6 is arranged between the first inner conductor 1 and the second inner conductor 2, and the elasticity of the spring 6 can enable the first inner conductor 1 to smoothly move back and forth in a hole at the left end of the second inner conductor 2.

In the specific implementation process, the inner conductor I1, the inner conductor II 2 and the spring 6 are mutually precisely matched, and the telescopic range of the total length of the product is 22.8-21.8 mm.

In the specific implementation process, the holding force between the first insulator 3, the second insulator 4 and the shell 5 is more than or equal to 26.7N.

In the specific implementation process, the holding force between the first inner conductor 1 and the second inner conductor 2 and between the first insulator 3 and the second insulator 4 is larger than or equal to 26.7N.

In the specific implementation process, the inner aperture of the left end of the inner conductor 2 is larger than the diameter of the excircle of the barb of the inner conductor 1.

In the specific implementation process, the assembly sequence of the product is convenient and quick, and the assembly sequence is as follows: the first inner conductor 1 is press-fitted into the second insulator 4 → the second insulator 4 is press-fitted into the housing 5 → the first insulator 3 is press-fitted into the housing 5 → the spring 6 is placed into the first inner conductor 1 → the first inner conductor 1 is press-fitted into the second inner conductor 2 → the internal tooth elastic washer 7 and the nut 8 are mounted on the housing 5;

the assembly tool used by the utility model is simple in common use, and the inner conductor 1 is arranged in the inner conductor 2, has smaller stress and can be directly pressed by hand; after the inner conductors are pressed in, the inner conductors are bounced by spring elasticity, the two inner conductors are hooked by barbs, the hooking force is greater than the spring elasticity, the inner aperture of the left end of the inner conductor II 2 is greater than the diameter of the excircle of the barb of the inner conductor I1, and under the action of the spring force, the inner conductor I1 can smoothly move back and forth with the inner aperture of the left end of the inner conductor II 2 after being stressed.

The product can be widely applied to blind-mate connection between plates with variable heights, and has the advantages of stable and superior electrical property, small volume and long service life. The product comprises parts such as a shell, an insulator, an inner conductor, a spring and the like, the parts are tightly matched, the elasticity is stable, and the inner conductor stretches smoothly. When the product is used, the SMA hole end 1/4-36UNS-2A threads penetrate through the mounting hole and then are fixed by the nut, and the other end of the SMA hole end 1/4-36UNS-2A threads is matched with the PCB for use. At present, domestic SMA series products are mostly fixed in length and can not be stretched, and the length of the product can be stretched in a certain range due to the matching use of the internal spring, so that the defects of the domestic market are overcome, and the product has strong development potential.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An SMA-type variable length connector, comprising: the structure of the cable comprises a first inner conductor (1), a second inner conductor (2), a first insulator (3), a second insulator (4) and a spring (6), wherein the first inner conductor, the second inner conductor, the first insulator and the second insulator are arranged in a shell (5); an internal tooth elastic washer (7) and a nut (8) are arranged outside the shell (5); the inner conductor I (1) is fixed with the inner conductor II (2) in a barb structure, and the inner conductor II (2) is fixed with the insulator II (4) in a barb structure; the shell (5) is fixed with the first insulator (3) and the second insulator (4) through barb structures, the first insulator (3), the second insulator (4) and the 5 shell (5) play a role in size control and positioning, the spring (6) is installed and placed in the first inner conductor (1), and the inner tooth elastic washer (7) and the nut (8) are installed on the outer portion of the spring.

2. An SMA-type variable length connector according to claim 1, wherein: the inner conductor I (1) is pressed into the insulator II (4), the insulator II (4) is pressed into the shell (5), the spring (6) is placed into the inner conductor I (1) for installation, the inner conductor I (1) is pressed into the inner conductor II (2), the inner tooth elastic washer (7) and the nut (8) are sequentially installed, and the shell (5) is installed.

3. An SMA-type variable length connector according to claim 1, wherein: the left end of the first inner conductor (1) is stressed to move smoothly in the hole diameter of the left end of the second inner conductor (2).

4. An SMA-type variable length connector according to claim 1, wherein: a spring (6) is arranged between the first inner conductor (1) and the second inner conductor (2), and the elasticity of the spring (6) can enable the first inner conductor (1) to smoothly move back and forth in a hole at the left end of the second inner conductor (2).

5. An SMA-type variable length connector according to claim 1, wherein: the inner conductor I (1), the inner conductor II (2) and the spring (6) are mutually precisely matched, and the total length of the product can be expanded within the range of 22.8-21.8 mm.

6. An SMA-type variable length connector according to claim 1, wherein: the first insulator (3), the second insulator (4) and the shell (5) meet the requirement that the holding force is larger than or equal to 26.7N.

7. An SMA-type variable length connector according to claim 1, wherein: the holding force among the first inner conductor (1), the second inner conductor (2), the first insulator (3) and the second insulator (4) is more than or equal to 26.7N.

8. An SMA-type variable length connector according to claim 1, wherein: the inner aperture of the left end of the inner conductor II (2) is larger than the diameter of the barb excircle of the inner conductor I (1).