CN206211211U - It is a kind of highly reliable without floating BMA K-type connectors - Google Patents
It is a kind of highly reliable without floating BMA K-type connectors Download PDFInfo
- Publication number
- CN206211211U CN206211211U CN201621277703.XU CN201621277703U CN206211211U CN 206211211 U CN206211211 U CN 206211211U CN 201621277703 U CN201621277703 U CN 201621277703U CN 206211211 U CN206211211 U CN 206211211U
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- China
- Prior art keywords
- shell
- contact pin
- contact
- pin component
- head
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Abstract
The utility model discloses a kind of highly reliable without floating BMA K-type connectors, including shell, contact pin component and contact head, and described outer casing inner wall has bulge loop, and bulge loop has the first face and the second face；The contact pin of contact pin component is fitted into insulator, and contact pin component is mounted in shell head end together with insulator, and contact pin component is against on the first face of bulge loop, and the roll riveting of shell head end is closed up, so as to contact pin component and insulator are fixed in shell；Contact head is mounted in shell afterbody, has pad to isolate between contact head and the second face of bulge loop；The pressured set of contact head-tail is fixed, and the roll riveting of shell afterbody is closed up, so as to contact head and gland are fixed in shell.Connector of the present utility model is used for the connection and transmission of radiofrequency signal, using without float design, axiality when guarantee is plugged together, improves the reliability of radiofrequency signal interconnection system, meets the demand that space flight and aviation electronics develop towards miniaturization, high reliability, lighting direction.
Description
Technical field
The utility model belongs to electronic information technical field, specifically a kind of highly reliable without floating BMA-K type connectors.
Background technology
As the communication technology, electronic technology are developed by leaps and bounds, increasing electronic apparatus application in every field, first device
The density of part and correlation function increasingly increases between them, therefore to the dimensional accuracy of single component, linkage function will
More and more higher is sought, standardization, and exigent reliability are not required nothing more than.Existing BMA floating blind pluggings type connector has
The advantages of small volume, contact reliability, mechanical electric apparatus superior performance, docking facilitate, but because its floatability structure can cause footpath
It is poor to centering, especially in bull to being inserted through journey radial alignment it is difficult to ensure that, easily cause reed insert split, contact pin torticollis etc. is asked
Topic, reduces its reliability.
Utility model content
For the defect that prior art is present, the utility model provides a kind of highly reliable without floating BMA-K type connectors, subtracts
The volume and weight of small radio frequency connector, improve reliability, meet space flight and aviation electronics towards miniaturization, high reliability,
The demand that lighting direction is developed.
The utility model is adopted the following technical scheme that：It is a kind of highly reliable without floating BMA-K type connectors, including shell, insert
Needle assemblies and contact head, described outer casing inner wall have bulge loop, and bulge loop has the first face and the second face；The contact pin dress of contact pin component
Enter in insulator, contact pin component is mounted in shell head end together with insulator, contact pin component is against on the first face of bulge loop, shell
Head end roll riveting is closed up, so as to contact pin component and insulator are fixed in shell；Contact head be mounted in shell afterbody, contact head with it is convex
There is pad to isolate between second face of ring；The pressured set of contact head-tail is fixed, and the roll riveting of shell afterbody is closed up, so as to by contact head and
Gland is fixed in shell.
Radio frequency (RF) coaxial connector is a kind of coaxial transmission line, and one end is BMA-K type connectors, and the other end is microstrip line.Two
End be adapted to after radio frequency connector and wiring board interconnect, be connected to signal source, load or the equipment such as antenna on.During energization work,
Its outer conductor is grounded, and by inner wire outer surface axial direction transmitting radio frequency signal, it is a kind of distributed constant circuit to electric current, transmission
TEM moulds, its internal electric field all the time perpendicular to electric current transmission direction, its characteristic impedance Z0, can be calculated with formula (1)：
In formula (1), εrIt is the relative dielectric constant of dielectric, a is inner conductor outer diameter, and b is outer conductor internal diameter.
Connector of the present utility model is used for the connection and transmission of radiofrequency signal, using without float design, it is ensured that when plugging together
Axiality, improve radiofrequency signal interconnection system reliability, meet space flight and aviation electronics towards miniaturization, it is highly reliable
The demand that property, lighting direction are developed.Shell two ends roll riveting, to fixing plug pin component and insulating supporting, it is ensured that shell is in rolling
Gold plated Layer does not fall off during riveting, and the fixed sexual satisfaction of product center contact will after theoretical calculation and experiment determine roll riveting
Ask.
Described contact head is made up of connection end and elastic tip, is connected by the first fillet between connection end and elastic tip, institute
The connection end and elastic tip stated are integrally formed, and connection end afterbody has 10 ° of taper hole；Described elastic tip is by the first cylindrical section, cone
Platform section and the second cylindrical section composition, the first cylindrical section and frustum section between be connected by the second fillet and the 3rd fillet, frustum section and
Second cylindrical section is directly connected to, uniform several notches in axial direction in described elastic tip.Contact head is designed to overall structure, bullet
The wall thickness at property end is designed to uniform sizes, it is ensured that uniform wall thickness；Cylindrical section and the intersegmental use round-corner transition of frustum, using beryllium-bronze
Rod precision turning machine-shaping, then with numerical control machining center milling otch；In the afterbody of contact head connection end, one section is designed
10 ° of taper hole, when connecting, engages with the corresponding outer cone section in BMA-J types connector (standard component), and the 3rd fillet is most
The axial diameter of lower is slightly less than the overall diameter of BMA-J type connectors, in BMA-K types connector of the present utility model and BMA-J
When type connector is plugged together, BMA-J can strut the elastic tip of contact head, contact head elasticity is pressed on BMA-J type connectors,
Ensure under aerospace vibration condition, connector outer conductor displacement very little (≤0.05mm) diametrically, improve the anti-of contact head
Shake performance, while protecting the worse inner wire of intensity injury-free.
To be further ensured that resistance to shock of the contact head under the conditions of aerospace, increase on the outer wall of the 3rd fillet of contact head
Plus a reinforcing ring.The mechanics mode of operation of contact head script is cantilever beam, after increasing reinforcing ring, after connector is plugged together,
Under aerospace vibration condition, become similar simple beam structure, further enhance its shock resistance.
In material selection, consider that environmental resistance is good, uses the used material of aerospace product, pin groups as far as possible first
The contact pin of part is processed using beraloy, and plated surface is firmly golden；Sheath is also cased with outside contact pin component.In structure design,
According to design calculating, analog simulation, product structure design is completed.
Brief description of the drawings
Fig. 1 is a kind of highly reliable structural representation without floating BMA-K type connectors of the utility model.
Fig. 2 is a kind of structural representation of the highly reliable contact head without floating BMA-K type connectors of the utility model.
Specific embodiment
Embodiment of the present utility model is described specifically below in conjunction with the accompanying drawings：
It is a kind of highly reliable without floating BMA-K type connectors, as shown in figure 1, including shell 20, contact pin component 30 and contact head
50, the inwall of shell 20 has bulge loop 21, and bulge loop 21 has the first face 21a and the second face 21b；The contact pin 31 of contact pin component 30 is used
Beraloy is processed, and plated surface is firmly golden, and contact pin 31 is fitted into insulator 10, and contact pin component 30 is together with insulator 10
Mounted in the head end of shell 20, contact pin component 30 is against on the first face 21a of bulge loop 21, and the afterbody of contact pin component 30 is also cased with sheath 80,
The head end roll riveting of shell 20 is closed up, so as to contact pin component 30 and insulator 10 are fixed in shell 20；Contact head 50 is mounted in shell
20 afterbodys, have pad 40 to isolate between contact head 50 and the second face 21b of bulge loop 21；The pressured set 70 of the afterbody of contact head 50 is fixed,
The afterbody roll riveting of shell 20 is closed up, so as to contact head 50 and gland 70 are fixed in shell 20.
Described contact head 50 is leaned between connection end 51 and elastic tip as shown in Fig. 2 be made up of connection end 51 and elastic tip
First fillet 52 is connected, and described connection end 51 and elastic tip are integrally formed, and the afterbody of connection end 51 has 10 ° of taper hole 59；It is described
Elastic tip by the first cylindrical section 53, frustum section 56 and second cylindrical section 57 constitute, the first cylindrical section 53 and frustum section 56 between
It is connected by the second fillet 54 and the 3rd fillet 55, frustum section 56 is directly connected to the second cylindrical section 57, axle in described elastic tip
To uniform several notches 58.
To be further ensured that resistance to shock of the contact head 50 under the conditions of aerospace, contact head 50 the 3rd fillet 55 it is outer
A reinforcing ring 60 is cased with wall, the mechanics mode of operation of the script of contact head 50 is cantilever beam, after increasing reinforcing ring 60, in connection
After device is plugged together, under aerospace vibration condition, become similar simple beam structure, further enhance its shock resistance
The above, is only specific embodiment of the present utility model, is not limitation of the utility model, this area
Technical staff the change made using above-mentioned technology contents or is repaiied in the case where the utility model Technology design principle is not departed from
Decorations, are regarded as belonging to protection domain of the present utility model.
Claims (4)
1. a kind of highly reliable without floating BMA-K type connectors, it is characterised in that：It is described including shell, contact pin component and contact head
Outer casing inner wall there is bulge loop, bulge loop has the first face and the second face；The contact pin of contact pin component is fitted into insulator, contact pin component
Shell head end is mounted in together with insulator, contact pin component is against on the first face of bulge loop, the roll riveting of shell head end is closed up, so that will
Contact pin component and insulator are fixed in shell；Contact head is mounted in shell afterbody, has pad between contact head and the second face of bulge loop
Piece is isolated；The pressured set of contact head-tail is fixed, and the roll riveting of shell afterbody is closed up, so as to contact head and gland are fixed in shell.
2. one kind according to claim 1 is highly reliable without floating BMA-K type connectors, it is characterised in that：Described contact
Head is made up of connection end and elastic tip, by the linking of the first fillet, described connection end and elastic tip between connection end and elastic tip
It is integrally formed, connection end afterbody has 10 ° of taper hole；Described elastic tip is by the first cylindrical section, frustum section and the second cylindrical section group
Into, it is connected by the second fillet and the 3rd fillet between the first cylindrical section and frustum section, frustum section is directly connected to the second cylindrical section,
Uniform several notches in axial direction in described elastic tip.
3. one kind according to claim 2 is highly reliable without floating BMA-K type connectors, it is characterised in that：Described the 3rd
Reinforcing ring is also cased with the outer wall of fillet.
4. one kind according to any one of claim 1 to 3 is highly reliable without floating BMA-K type connectors, it is characterised in that：
Sheath is also cased with outside contact pin component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621277703.XU CN206211211U (en) | 2016-11-26 | 2016-11-26 | It is a kind of highly reliable without floating BMA K-type connectors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621277703.XU CN206211211U (en) | 2016-11-26 | 2016-11-26 | It is a kind of highly reliable without floating BMA K-type connectors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206211211U true CN206211211U (en) | 2017-05-31 |
Family
ID=58747721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621277703.XU Expired - Fee Related CN206211211U (en) | 2016-11-26 | 2016-11-26 | It is a kind of highly reliable without floating BMA K-type connectors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206211211U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356689A (en) * | 2016-11-26 | 2017-01-25 | 中国电子科技集团公司第四十研究所 | High-reliability and flotation-free BMA-K type connector |
| CN107369998A (en) * | 2017-07-31 | 2017-11-21 | 四川华丰企业集团有限公司 | A kind of dismountable right-angle radio frequency coaxial connector and its assembly and disassembly method |
| CN109031008A (en) * | 2018-07-28 | 2018-12-18 | 中国电子科技集团公司第四十研究所 | A kind of radio-frequency cable component phase surveys auxiliary device fastly |
-
2016
- 2016-11-26 CN CN201621277703.XU patent/CN206211211U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356689A (en) * | 2016-11-26 | 2017-01-25 | 中国电子科技集团公司第四十研究所 | High-reliability and flotation-free BMA-K type connector |
| CN107369998A (en) * | 2017-07-31 | 2017-11-21 | 四川华丰企业集团有限公司 | A kind of dismountable right-angle radio frequency coaxial connector and its assembly and disassembly method |
| CN109031008A (en) * | 2018-07-28 | 2018-12-18 | 中国电子科技集团公司第四十研究所 | A kind of radio-frequency cable component phase surveys auxiliary device fastly |
| CN109031008B (en) * | 2018-07-28 | 2024-06-11 | 中国电子科技集团公司第四十研究所 | Auxiliary device is surveyed soon to radio frequency cable subassembly phase place |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20191126 |