CN208904355U - A kind of welded type SMA plate terminal adapter - Google Patents
A kind of welded type SMA plate terminal adapter Download PDFInfo
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- CN208904355U CN208904355U CN201821657774.1U CN201821657774U CN208904355U CN 208904355 U CN208904355 U CN 208904355U CN 201821657774 U CN201821657774 U CN 201821657774U CN 208904355 U CN208904355 U CN 208904355U
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- insulator
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- jack
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Abstract
The utility model discloses a kind of welded type SMA plate terminal adapters, metal shell front end is connected with the extension board being axially arranged along metal shell, the welded post vertical with extension board is provided on extension board, the welding hole site opened up in welded post and pcb board is corresponding, SMA plate terminal adapter is welded and fixed by longitudinally disposed welded post and pcb board welding hole, and installation is reliable and stable, will not be shaken, a possibility that welding is eccentric is reduced, the consistency of entire properties of product is improved；Both direction is provided with limited step on metal shell inner wall；Step surface is arranged in insulator outside surface, is provided with limiting stand terrace in insulator, and step surface is provided with outside metal jack, and each step surface and limiting stand terrace are in close contact；Insulator and metal jack is avoided to deviate in axial left and right both direction.
Description
Technical field
The utility model relates to radio frequency connector technical field, in particular to a kind of welded type SMA plate terminal adapter.
Background technique
SMA connector is a kind of coaxial connector of widely used small-sized threaded connection, it has bandwidth, performance
Feature excellent, highly reliable, the service life is long.SMA connector is connected suitable for microwave equipment and the loop of rf of digital communication system
Radio-frequency cable or microstrip line.
The key technical indexes of SMA plate terminal adapter is as follows:
Temperature range: -65~+165 DEG C
Execution standard: GJB681A
Characteristic impedance: 50 Ω
Frequency range: DC~18GHz
Operating voltage: 335V max (virtual value)
Pressure resistance: 1000V rms (sea level minimum value)
Insulation resistance: >=5000M Ω
Insertion loss :≤0.15dB/6GHz
Durability: >=500 times
Common welded type SMA plate terminal adapter is as shown in Fig. 1 a- Fig. 1 c at this stage, working frequency 6GHz.This structure by
Metal shell 1, insulator 2,3 three parts of metal jack form.Pcb board is injected among four welded posts 4 of connector, then
Electricity consumption Lip river iron adds tin welding.
Structure major defect is as follows:
Jack part processes barb structure, and jack barbed portion impedance is caused to change；
Enclosure interior processes barb structure, and shell barbed portion impedance is caused to change；
Jack part barb structure can only prevent it from deviating to the left, it cannot be guaranteed that not deviating to the right；
Pcb board, which is transitioned between connector, does not have performance compensation, increases entire properties of product loss；
Before pcb board and connector welding, the pad smoother on pcb board docks difficulty with four welded posts of connector
Greatly, cause to be easy bias when welding, electric property decline；
Because temperature is high when welding, lead to insulator expanded by heating, metal jack can rotate, eccentric.
Utility model content
It is good, fixed reliable that purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of properties of product consistency
Welded type SMA plate terminal adapter.
The utility model uses following scheme to achieve the above object:
A kind of welded type SMA plate terminal adapter, including metal shell, insulator, metal jack and welded post；
The metal shell front end is connected with the extension board being axially arranged along metal shell, is provided with and extends on extension board
The welding hole site opened up on the vertical welded post of plate, welded post and pcb board is corresponding, sets on metal shell inner wall towards both direction
It is equipped with limited step；Insulator outside surface is provided with the step surface chimeric with metal shell inner wall upper limit step, and insulator is embedding
Enter in metal shell, each step surface of insulator is in close contact with limited step corresponding inside metal shell；It is opened in insulator
Equipped with through-hole, it is provided with limiting stand terrace on through-hole side wall, step surface, the insertion insulation of metal jack are provided with outside metal jack
In body, the step surface of metal jack is in close contact with limiting stand terrace corresponding inside insulator, and metal jack front end is from insulation
Body front end is stretched out.
Further, straight knurling is provided in metal jack outer circle.
Further, four are arranged on extension board and waits the equidistant isometric welded post of circle, is opened up in four welded posts and pcb board
Four equal equidistant welding hole sites of circle are corresponding.
Further, both direction is provided with multiple limited steps on metal shell inner wall；Insulator outside surface is provided with
The multiple step surfaces chimeric with metal shell inner wall upper limit step, insulator exterior is at multilayer steps structure.
Further, it is provided with multiple limiting stand terraces on insulator through-hole side wall, is correspondingly provided with outside metal jack more
A step surface forms multilayer steps structure.
Further, metal shell is columnar structured.
The welded type SMA plate terminal adapter of the utility model, metal shell front end is connected with axially to be arranged along metal shell
Extension board, the welded post vertical with extension board, the welding hole site pair opened up in welded post and pcb board are provided on extension board
It answers, SMA plate terminal adapter is welded and fixed by longitudinally disposed welded post and pcb board welding hole, and installation is reliable and stable, will not be shaken
It is dynamic, a possibility that welding is eccentric is reduced, the consistency of entire properties of product is improved.
Both direction is provided with limited step on metal shell inner wall；Insulator outside surface be provided with in metal shell
The chimeric step surface of wall upper limit step, insulator are embedded in metal shell, inside each step surface of insulator and metal shell
Corresponding limited step is in close contact；It is provided with limiting stand terrace in insulator, step surface, metal are provided with outside metal jack
Jack is inserted into insulator, and the step surface of metal jack is in close contact with limiting stand terrace corresponding inside insulator；It avoids absolutely
Edge body and metal jack are deviated in axial left and right both direction.
Further, it is provided with straight knurling in metal jack outer circle, increases metal jack and insulator surface frictional force, keeps away
Exempt from jack to rotate in the insulator.
Further, both direction is provided with multiple limited steps on metal shell inner wall, insulator is processed into multilayer knot
Structure；Multiple limiting stand terraces are provided on insulator through-hole side wall, metal jack is processed into multilayered structure, is further ensured that adjacent
Robust connection between layer, avoids shifting.
Each section of the utility model metal shell, insulator, metal jack cross section compensate, and working frequency is by original
6GHz increase to 18GHz, reflection loss reduces.
Detailed description of the invention
Fig. 1 a is prior art weld formula SMA plate terminal adapter semi-section structural representation
Fig. 1 b is prior art weld formula SMA plate terminal adapter side view
Fig. 1 c is prior art weld formula SMA plate terminal adapter stereoscopic schematic diagram
Fig. 2 a is the cross-sectional view of the utility model
Fig. 2 b is the stereoscopic schematic diagram of the utility model
Fig. 3 a is metal shell cross-sectional view in the utility model
Fig. 3 b is the side view of metal shell in the utility model
Fig. 4 is insulator structure figure
Fig. 5 is metal jack structure figure
Wherein: 1- metal shell, 2- insulator, 3- metal jack, 4- welded post.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as practical to this
Novel restriction.
As shown in Figure 2 a and 2 b, the welded type SMA plate terminal adapter of the utility model includes metal shell 1, insulator
2, metal jack 3 and welded post 4.
As shown in Figure 3a and Figure 3b shows, 1 front end of cylindrical metal case is connected with axially disposed extension board, on extension board
It is vertically arranged with extension board there are four the equidistant isometric welded post 4 of equal circle, four etc. opened up in four welded posts 4 and pcb board
The equidistant welding hole site of circle is corresponding, and multiple limited steps of both direction are provided on 1 inner wall of metal shell.
As shown in figure 4,2 outer surface of insulator is provided with the step surface chimeric with the limited step on 1 inner wall of metal shell,
At multilayer steps structure outside insulator 2, insulator 2 is embedded in metal shell 1, each step surface of insulator 2 and metal shell 1
The corresponding limited step in inside be in close contact；Through-hole is offered in insulator 2, and multiple limited steps are provided on through-hole side wall
Face.
As shown in figure 5, being provided with multiple step surfaces outside metal jack 3 forms multilayer steps structure, metal jack 3 is inserted into
In insulator 2, each step surface of metal jack 3 limiting stand terrace corresponding with 2 inside of insulator is in close contact, metal jack
3 front ends are stretched out from 2 front end of insulator.
It is provided with straight knurling in 3 outer circle of metal jack, increases the frictional force between metal jack 3 and insulator 2, guarantees
Metal jack and insulator 2 are fixed reliable, avoid moving.
When assembly, insulator 2 is pressed into metal shell 1 by fixture, makes each step surface of insulator 2 and metal shell 1
The corresponding step surface in inside be in close contact；Then the diameter smallest end of metal jack 3 is passed through into fixture to 2 inner hole of quasi-insulator
Indentation, until each step surface of metal jack 3 step surface corresponding with 2 inside of insulator is in close contact, assembly is completed.
The utility model structure is simple and convenient to operate, and securely and reliably, can be effectively saved the set-up time；Especially PCB
On plate and connector fixed form, stablize, consistency of performance is good, is worth above being widely used in pcb board application.
Finally it should be noted that: above embodiments are merely to illustrate the technical solution of the utility model rather than limit it
System, although the utility model is described in detail referring to above-described embodiment, those of ordinary skill in the art should be managed
Solution: specific implementation of the utility model can still be modified or equivalent replacement, and without departing from the utility model
Any modification of spirit and scope or equivalent replacement should all cover in present claims range.
Claims (6)
1. a kind of welded type SMA plate terminal adapter, it is characterised in that: including metal shell (1), insulator (2), metal jack
(3) and welded post (4)；
Metal shell (1) front end is connected with the extension board being axially arranged along metal shell (1), is provided with and prolongs on extension board
The vertical welded post of plate (4) is stretched, the welding hole site opened up in welded post (4) and pcb board is corresponding, on metal shell (1) inner wall
Both direction is provided with limited step；Insulator (2) outer surface is provided with chimeric with metal shell (1) inner wall upper limit step
Step surface, insulator (2) is embedded in metal shell (1), corresponding inside insulator (2) each step surface and metal shell (1)
Limited step be in close contact；Through-hole is offered in insulator (2), and limiting stand terrace, metal jack are provided on through-hole side wall
(3) external to be provided with step surface, metal jack (3) is inserted into insulator (2), the step surface of metal jack (3) and insulator (2)
Internal corresponding limiting stand terrace is in close contact, and metal jack (3) front end is stretched out from insulator (2) front end.
2. welded type SMA plate terminal adapter as described in claim 1, it is characterised in that: be provided in metal jack (3) outer circle
Straight knurling.
3. welded type SMA plate terminal adapter as claimed in claim 1 or 2, it is characterised in that: four are arranged on extension board and waits circle
Equidistant isometric welded post (4), it is corresponding that the four equal circles opened up on four welded posts (4) and pcb board equidistantly weld hole sites.
4. welded type SMA plate terminal adapter as claimed in claim 3, it is characterised in that: towards two on metal shell (1) inner wall
Direction is provided with multiple limited steps；Insulator (2) outer surface is provided with chimeric with metal shell (1) inner wall upper limit step
Multiple step surfaces, insulator (2) are external at multilayer steps structure.
5. welded type SMA plate terminal adapter as claimed in claim 3, it is characterised in that: be provided on insulator through-hole side wall
Multiple limiting stand terraces, metal jack (3) is external to be correspondingly provided with multiple step surfaces formation multilayer steps structures.
6. welded type SMA plate terminal adapter as claimed in claim 3, it is characterised in that: metal shell (1) is cylinder-shaped knot
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821657774.1U CN208904355U (en) | 2018-10-12 | 2018-10-12 | A kind of welded type SMA plate terminal adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821657774.1U CN208904355U (en) | 2018-10-12 | 2018-10-12 | A kind of welded type SMA plate terminal adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208904355U true CN208904355U (en) | 2019-05-24 |
Family
ID=66575548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821657774.1U Active CN208904355U (en) | 2018-10-12 | 2018-10-12 | A kind of welded type SMA plate terminal adapter |
Country Status (1)
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| CN (1) | CN208904355U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019630A (en) * | 2021-10-22 | 2022-02-08 | 中航光电科技股份有限公司 | High-pressure-bearing structure for fixing optical cable |
-
2018
- 2018-10-12 CN CN201821657774.1U patent/CN208904355U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019630A (en) * | 2021-10-22 | 2022-02-08 | 中航光电科技股份有限公司 | High-pressure-bearing structure for fixing optical cable |
| CN114019630B (en) * | 2021-10-22 | 2024-01-09 | 中航光电科技股份有限公司 | High pressure-bearing structure for fixing optical cable |
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