CN208986313U - A kind of straight SMA radio frequency connector - Google Patents
A kind of straight SMA radio frequency connector Download PDFInfo
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- CN208986313U CN208986313U CN201821896937.1U CN201821896937U CN208986313U CN 208986313 U CN208986313 U CN 208986313U CN 201821896937 U CN201821896937 U CN 201821896937U CN 208986313 U CN208986313 U CN 208986313U
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- main body
- bushing
- radio frequency
- insulator
- frequency connector
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Abstract
The utility model provides a kind of straight SMA radio frequency connector, belongs to field of mechanical technique.This connector includes swivel nut, main body, center needle, bushing, weld cup and tail pipe, main body snaps onto swivel nut, step one is offered on inner sidewall in the middle part of main body, bushing is plugged in main body and the first end of bushing is resisted against on step one, cup is welded to be arranged in main body at body second end, the first end of weldering cup leans with bushing second end, the joint of weldering cup lateral wall and main body inner sidewall offers technology groove, one end insertion process slot of tail pipe is fixed, the inner sidewall of body first end end is equipped with step two, insulator one is equipped in body first end, center needle is plugged in insulator one, evagination forms step three in the middle part of the needle of center, the first end and step two of insulator one lean, the second end and step three of insulator one lean.This connector construction is reliable and stable, will not shake, and electric stability is good.
Description
Technical field
The utility model belongs to field of communication technology, is related to a kind of straight SMA radio frequency connector.
Background technique
SMA has and occupies little space as most radio frequency connectors is most applied at this stage, and to reliably, frequency band is wider,
Can and the advantages that 3.5mm, 2.92mm interworking.
The straight most applying frequency of SMA connector traditional at present can only arrive 18GHz, and there are interfacial instabilities；In high frequency
26.5GHz is general using lower electric property；There can be mechanical shake and the unstable situation of electric property after assembling with cable bend.
With Industry Quick Developments such as telecom communication, network, wireless telecommunications and detection and measurements, both at home and abroad for product
Matching is stablized, and the connector demand of high-performance, high-quality is very urgent.
Summary of the invention
The main purpose of the utility model is to provide a kind of straight SMA radio frequency connectors, can effectively solve background skill
The problems in art.
The purpose of this utility model can be realized by the following technical scheme: a kind of straight SMA radio frequency connector, including spiral shell
Set, main body, center needle, bushing, weldering cup and tail pipe, which is characterized in that the first end of the main body snaps onto the swivel nut, institute
It states and offers step one on the inner sidewall in the middle part of main body, the lining is set in the main body and the bushing and the main body
Clearance fit, the first end of the bushing are tightly attached on step one, and the weldering cup is arranged in the main body close to the main body
At second end, the first end of the weldering cup is mutually close to the bushing second end, the weldering cup second end lateral wall and the master
The joint of body second end inner sidewall has an annular gap, one end of the tail pipe be inserted into the annular gap and with the main body
The inner sidewall of second end is spirally connected, and inner sidewall of the main body close to its first end end is equipped with inwardly projecting step two, institute
It states and is equipped with insulator one in body first end, the first end of the center needle is connected with one clearance fit of insulator, described
The second end of center needle extends close to the end face of the second end of bushing, and evagination forms step three in the middle part of the center needle, described
The first end of insulator one and the step two-phase are close to, and the second end and step three-phase of the insulator one are close to.
In a kind of above-mentioned straight SMA radio frequency connector, insulator two is equipped in the second end of the bushing, it is described exhausted
Edge body two is mutually close to the second end of the center needle.
In a kind of above-mentioned straight SMA radio frequency connector, the maximum gauge of the center needle is less than the bushing inner diameter,
There is gap between the second end lateral wall and the bushing of the center needle.
In a kind of above-mentioned straight SMA radio frequency connector, the internal diameter of the bushing is less than the internal diameter of the main body.In this way
The inner wall and main body inner wall of bushing form step, since the second end of center needle is located in bushing, bushing inner cavity and body lumen
The air dielectric with step is constituted, connector can be made to have higher by frequency, and preferable electric property can be embodied.
In a kind of above-mentioned straight SMA radio frequency connector, weldering is offered on the side wall in the middle part of it on the weldering cup
Connect hole.
In a kind of above-mentioned straight SMA radio frequency connector, guide angle is offered in the body second end.Pass through setting
Guide angle, which facilitates, is mounted on weldering cup inside the second end of main body.
In a kind of above-mentioned straight SMA radio frequency connector, the corresponding position of the swivel nut inner sidewall offers annular groove
One, the lateral wall of the body first end offers annular groove two, and the annular groove one and annular groove two collectively form a ring
Shape chamber, the annular chamber is interior to be equipped with cushion rubber.
Compared with prior art, the straight SMA radio frequency connector of technical solutions of the utility model has the advantage that
1, insulator one and insulator two are rear to remove part processing respectively by fixed before and after the step of main body and center needle
Outside precision, can 100% control connector interface, and do not need the installation of any jig.
2, the middle rear end of main body is designed to air dielectric, and step transition, and such design can be such that connector has
It is higher by frequency, and preferable electric property can be embodied.Design in this way, connector of the present invention can be
Excellent standing wave can be embodied under 26.5GHz.
3, connector has dielectric 2 as support when welding inner conductor, so that center conductor will not in bending application
Displacement, ensure that the reliable and stable of connector；In use, the outer conductor of cable is fixed using weldering cup, when weldering cup assembles, main body has
The guide angle of one 30 ° of design, ease of assembly；After with locking, the gap of main body and weldering cup only has 0.05mm, has evaded reality
Eccentric risk in assembling, eliminates axial shaking.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the straight SMA radio frequency connector of the utility model.
Fig. 2 is enlarged drawing at the A of Fig. 1.
Fig. 3 is enlarged drawing at the b of Fig. 1.
Fig. 4 is the assembling process of the straight SMA radio frequency connector of the utility model.
Fig. 5 is the application schematic diagram of the straight SMA radio frequency connector of the utility model.
In figure, 1, swivel nut；1a, annular groove one；2, cushion rubber；3, insulator one；4, retaining ring；5, center needle；5a, step three；
6, bushing；7, main body；7a, step one；7b, step two；7c, annular groove two；7d, guide angle；8, insulator two；9, cup is welded；9a,
Welding hole；10, tail pipe；11, annular gap；12, cable.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1-Figure 3, this straight SMA radio frequency connector includes swivel nut 1, main body 7, center needle 5, bushing 6, weldering cup 9
With tail pipe 10, cushion rubber 2 is arranged on the first end lateral wall of main body 7, and the lateral wall of 7 first end of main body offers annular groove two
7c, the corresponding position of 1 inner sidewall of swivel nut offer one 1a of annular groove, two 7c of annular groove and one 1a of annular groove and collectively form a ring
Shape chamber, annular chamber is interior to be equipped with retaining ring 4, and 7 first end of main body snaps onto swivel nut 1.Main body 7 and swivel nut 1 are carried out by retaining ring 4 close
Sealing is fixed, eliminates the influence of extraneous unfavorable factor.
One 7a of step is offered on the inner sidewall at 7 middle part of main body, bushing 6 is arranged in main body 7 and between bushing 6 and main body 7
Gap cooperation, the first end of bushing 6 are tightly attached on one 7a of step, and weldering cup 9 is arranged in main body 7 at 7 second end of main body, weld cup
9 first end is mutually close to 6 second end of bushing, welds the joint of 9 second end lateral wall of cup and 7 second end inner sidewall of main bodyHave Annular gap 11, one end insertion of tail pipe 10Annular gap 11And be spirally connected with the inner sidewall of 7 second end of main body, main body 7 is close to it
The inner sidewall of first end end is equipped with inwardly projecting two 7b of step, is equipped with insulator 1, center needle 5 in 7 first end of main body
First end connected with one 3 clearance fit of insulator, the second end of center needle 5 extends close to the end face of the second end of bushing 6,
Needle 5 middle part evagination in center forms three 5a of step, and the first end of insulator 1 is close to two 7b phase of step, and the second of insulator 1
It is close to three 5a phase of step at end.Insulator 28, the second end phase of insulator 28 and center needle 5 are equipped in the second end of bushing 6
It is close to.
In the present embodiment, the maximum gauge of center needle 5 is less than 6 internal diameter of bushing, the second end lateral wall of such center needle 5
There is certain gap between bushing 6, the gap is as air dielectric.And the internal diameter of bushing 6 is less than the internal diameter of main body 7.
The inner wall of bushing 6 and 7 inner wall of main body form step in this way, since the second end of center needle 5 is located in bushing 6,6 inner cavity of bushing with
7 inner cavity of main body constitutes the air dielectric with step, connector can be made to have higher by frequency, and can embody preferable
Electric property.
Guide angle 7d is offered in 7 second end of main body, can be more convenient for weldering cup 9 to be mounted on the second end of main body 7 in this way
It is internal.The angle of guide angle 7d is preferably designed for 30 °, welds and offers welding hole 9a on the side wall in the middle part of it on cup 9.It is logical
Crossing welding hole 9a can be such that weldering cup 9 and 12 outer conductor of cable is welding as one.
As shown in figure 4, the assembling process of the straight SMA radio frequency connector of the utility model is as described below:
Cushion rubber 2 is inserted in main body 7, swivel nut 1 and main body 7 are fitted together by retaining ring 4, this four parts are as one
A semi-finished product；Then insulator 1, center needle 5, bushing 6, insulator 28, weldering cup 9 and tail pipe 10 are successively assembled.
As shown in figure 5, the straight SMA radio frequency connector of the utility model use process is as follows:
When straight SMA radio frequency connector and cable 12 assemble, tail pipe 10 is penetrated into cable 12, by weldering cup 9 and cable 12
Outer conductor welds together；Insulator 28 is penetrated into 12 inner conductor of cable, the inner conductor of center needle 5 and cable 12 is welded solid
It is fixed；Bushing 6 and insulator 1 are successively inserted on center needle 5；Finally it is locked.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (7)
1. a kind of straight SMA radio frequency connector, including swivel nut (1), main body (7), center needle (5), bushing (6), weldering cup (9) and tail
It manages (10), which is characterized in that the first end of the main body (7) snaps onto the swivel nut (1), interior in the middle part of the main body (7)
It is offered on side wall step one (7a), and the bushing (6) interior in the main body (7) and the main body is arranged in the bushing (6)
(7) first end of clearance fit, the bushing (6) is tightly attached on step one (7a), and the weldering cup (9) is arranged in the main body
(7) at the main body (7) second end, the first end of weldering cup (9) is mutually close to the bushing (6) second end, institute
The joint for stating weldering cup (9) second end lateral wall and the main body (7) second end inner sidewall has annular gap (11), the tail
One end of pipe (10) is inserted into the annular gap (11) and is spirally connected with the inner sidewall of the main body (7) second end, the main body (7)
Inner sidewall close to its first end end is equipped with inwardly projecting step two (7b), is equipped in main body (7) first end exhausted
Edge body one (3), the first end of the center needle (5) are connected with insulator one (3) clearance fit, the center needle (5)
Second end extends close to the end face of the second end of bushing (6), and evagination forms step three (5a) in the middle part of the center needle (5), institute
The first end for stating insulator one (3) is mutually close to the step two (7b), the second end and step three of the insulator one (3)
(5a) is mutually close to.
2. a kind of straight SMA radio frequency connector according to claim 1, which is characterized in that the second end of the bushing (6)
Interior to be equipped with insulator two (8), the insulator two (8) is mutually close to the second end of the center needle (5).
3. a kind of straight SMA radio frequency connector according to claim 1 or 2, which is characterized in that the center needle (5)
Maximum gauge is less than the bushing (6) internal diameter, has between the second end lateral wall and the bushing (6) of the center needle (5)
Gap.
4. a kind of straight SMA radio frequency connector according to claim 1 or 2, which is characterized in that the bushing (6) it is interior
Diameter is less than the internal diameter of the main body (7).
5. a kind of straight SMA radio frequency connector according to claim 1 or 2, which is characterized in that leaned on the weldering cup (9)
Welding hole (9a) is offered on side wall closely in the middle part of it.
6. a kind of straight SMA radio frequency connector according to claim 1 or 2, which is characterized in that the main body (7) second
Guide angle is offered in end.
7. a kind of straight SMA radio frequency connector according to claim 1 or 2, which is characterized in that the main body (7) first
The lateral wall at end offers annular groove two (7c), and the corresponding position of swivel nut (1) inner sidewall offers annular groove one (1a), institute
It states annular groove two (7c) and annular groove one (1a) collectively forms an annular chamber, be equipped with retaining ring (4) in the annular chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821896937.1U CN208986313U (en) | 2018-11-17 | 2018-11-17 | A kind of straight SMA radio frequency connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821896937.1U CN208986313U (en) | 2018-11-17 | 2018-11-17 | A kind of straight SMA radio frequency connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208986313U true CN208986313U (en) | 2019-06-14 |
Family
ID=66791137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821896937.1U Active CN208986313U (en) | 2018-11-17 | 2018-11-17 | A kind of straight SMA radio frequency connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208986313U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233401A (en) * | 2019-06-19 | 2019-09-13 | 深圳市通茂电子有限公司 | Coaxial rotary joint formula radio frequency (RF) coaxial connector |
| CN112563772A (en) * | 2020-11-16 | 2021-03-26 | 福建迈可博电子科技集团股份有限公司 | Structure of bent connector and processing method thereof |
| CN112993631A (en) * | 2021-02-05 | 2021-06-18 | 苏州戈拓微波科技有限公司 | Thermal vacuum connector and assembling process thereof |
-
2018
- 2018-11-17 CN CN201821896937.1U patent/CN208986313U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233401A (en) * | 2019-06-19 | 2019-09-13 | 深圳市通茂电子有限公司 | Coaxial rotary joint formula radio frequency (RF) coaxial connector |
| CN112563772A (en) * | 2020-11-16 | 2021-03-26 | 福建迈可博电子科技集团股份有限公司 | Structure of bent connector and processing method thereof |
| CN112993631A (en) * | 2021-02-05 | 2021-06-18 | 苏州戈拓微波科技有限公司 | Thermal vacuum connector and assembling process thereof |
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