CN103515058A - Isolation transformer for MIL-STD-1553B - Google Patents
Isolation transformer for MIL-STD-1553B Download PDFInfo
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- CN103515058A CN103515058A CN201310407990.6A CN201310407990A CN103515058A CN 103515058 A CN103515058 A CN 103515058A CN 201310407990 A CN201310407990 A CN 201310407990A CN 103515058 A CN103515058 A CN 103515058A
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Abstract
The invention belongs to the technical field of structures of isolation transformers, and discloses an isolation transformer for an MIL-STD-1553B. The isolation transformer for the MIL-STD-1553B comprises a shell, multiple leading pins extending from the shell and a pulse transformer arranged in the shell, wherein coil leads of the pulse transformer and corresponding leading pins are welded together, a pure nickel cover plate is fixed at the upper end of the shell in a sealed mode, and the shell and the leading pins are made of kovar alloy.
Description
Technical field
The invention belongs to isolating transformer technical field of structures, particularly a kind of MIL-STD-1553B bus isolating transformer.This isolating transformer is communication interface transformer, specifically can, as the isolating transformer of 1553B bus hardware system, use between 1553B protocol processor and system bus.
Background technology
1553B bus standard full name is MIL-STD-1553B bus standard, and it comes into effect at the beginning of nineteen sixty-eight.On September 21st, 1978, after obtaining formal written authorization, MIL-STD-1553B bus standard is announced and is delivered as the file of U.S. official.MIL-STD-1553B bus is the STD bus of US Airways electronic comprehensive system originally, be utilized for data between various systems and the exchange of information medium is provided, its effect is similar with " local area network (LAN) or LAN ", and MIL-STD-1553B bus is widely used on Aeronautics and Astronautics, navigation and other equipments with its excellent performance.Domestic it has been carried out to follow-up study, formulated corresponding GB, and practical application.This system has been widely used in US and European area at present, progressively will become general international standard.
1553B bus isolating transformer is the Primary Component of bus system, is used between protocol processor and system bus, realizes the functions such as transfer of data, DC-isolation and impedance matching between bus system and terminal.Use at present 1553B bus to be plastic device with isolating transformer, cannot meet the special dimension salt mist test requirement of 48 hours and the requirement in storage and useful life, and product qualification rate in filling process is low.
Summary of the invention
The object of the invention is to propose a kind of MIL-STD-1553B bus isolating transformer.This MIL-STD-1553B bus is longer with period of storage and the useful life of isolating transformer, has stronger adaptive capacity to environment and HT qualification rate very.
For realizing above-mentioned technical purpose, the present invention adopts following technical scheme to be achieved.
A kind of MIL-STD-1553B bus isolating transformer, comprise: housing, from housing is extended, a plurality ofly draws pin and the pulse transformer in housing is set, the coil lead of described pulse transformer welds together with the corresponding pin that draws, the upper end sealing of described housing is fixed with pure nickel cover plate, and described housing is kovar alloy with the material that draws pin.
Feature of the present invention and further improvement are:
The surface of described housing has nickel coating.
Described a plurality of surface of drawing pin has Gold plated Layer.
The inside of described housing is also provided with corresponding fixing a plurality of a plurality of insulators that draw pin.Described insulator is glass insulator or ceramic insulator.
Described pulse transformer is fixed in housing by encapsulated epoxy resin technique.
The coil of the coil of described pulse transformer for processing through polytetrafluoroethylraw raw material band parcel.
Described pure nickel cover plate is fixed on the upper end of housing by parallel weld seam process seal.
Beneficial effect of the present invention is: the present invention adopts metal shell encapsulation scheme, has effectively improved the ability that transformer conforms, and has extended the useful life of transformer, has improved the qualification rate of product perfusion.
Accompanying drawing explanation
Fig. 1 is the first stereogram of isolating transformer for a kind of MIL-STD-1553B bus of the present invention;
Fig. 2 is the second stereogram of isolating transformer for a kind of MIL-STD-1553B bus of the present invention;
Fig. 3 is housing of the present invention and draws pin schematic diagram;
Fig. 4 is enclosure interior structural representation of the present invention;
Fig. 5 is pulse transformer partial sectional view of the present invention;
Fig. 6 is cover plate schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
With reference to Fig. 1, be first stereogram of a kind of MIL-STD-1553B bus of the present invention with isolating transformer; With reference to Fig. 2, be second stereogram of a kind of MIL-STD-1553B bus of the present invention with isolating transformer; With reference to Fig. 3, for housing of the present invention and draw pin schematic diagram, referring to Fig. 4, be enclosure interior structural representation of the present invention; Referring to Fig. 5, it is pulse transformer partial sectional view of the present invention.This MIL-STD-1553B bus with isolating transformer comprise housing 1, draw pin 2, pulse transformer 3, insulator 4 and pure nickel cover plate 5.
The cross section of housing 1 is rectangle, and draws pin 2 and extends out from the lower end of housing 1, draws pin 2 vertical with the cross section of housing 1.Housing 1 and draw pin 2 and all adopt kovar alloy 4J29 to make.Kovar alloy 4J29 is a kind of ferromagnetic substance, can mildew-resistant and there is certain corrosion resistance, and plating performance is good, can carry out parallel seam welding.So the housing 1 of being made by kovar alloy 4J29 and draw the condition that pin 2 does not have fungus growth, can effectively prevent the performance of fungus growth.In addition, kovar alloy 4J29 is a kind of ferromagnetic substance, has the effect of electromagnetic shielding, and this is the performance of using at present plastic device not have.
The surface of housing 1 is by composite nickel-plating technique plated with nickel metal, thus the ability that raising housing 1 conforms and tests, and the salt spray resistance of housing 1 is also improved.The housing of existing isolating transformer of the same type can stand the salt mist test of 24 hours, and housing 1 after composite nickel-plating PROCESS FOR TREATMENT can stand the salt mist test of 48 hours.
The surface of drawing pin 2 is coated with gold, draws the gold-plated one side of pin 2 for salt spray resistance anticorrosion, on the other hand in order to guarantee to draw the solderability of pin 2, and the stable performance of drawing pin 2 after gold-plated, solderability is good.
Referring to Fig. 6, it is cover plate schematic diagram of the present invention.Pure nickel cover plate 5 does not need plating to improve its corrosion resistance.Nickel itself has good non-oxidizability, and in air, nickel surface can form NiO film, can stop further oxidation.Nickel resistance to corrosion is extremely strong.
While sealing fixedly between to pure nickel cover plate 5 and housing 1, need to be to carrying out parallel seam welding between pure nickel cover plate 5 and housing 1 under the environment of nitrogen.Adopt parallel seam welding to solve the problem sealing between cover plate and housing.Laser welding and soldering encapsulation are all difficult to by once welding and solve its sealing problem, and welding process can make the large-area destruction of housing commissure coating, and device integral body must be carried out second time electroplating to improve the ability of its salt spray resistance.Due to weld seam out-of-flatness, the effect of second time electroplating is difficult to guarantee.
Because housing 1 adopts kovar alloy 4J29, make, pure nickel cover plate 5 adopts nickel to make, thereby has improved the anti-radiation performance of isolating transformer, has extended the life-span of isolating transformer, makes the life-span of isolating transformer extend to 32 years from 17 years;
Transformer 3 arranges the inside of housing 1, and transformer 3 is fixed on the inside of housing 1 by epoxy resin encapsulated technique, and the lead-in wire of the coil of transformer 3 welds together with the corresponding pin 2 that draws.The coil of transformer 3 adopts high-temperature insulation material polytetrafluoroethylraw raw material band to wrap up processing in advance, can reduce the impact on transformer performance parameter of stress that the embedding of epoxy resin high temperature produces.Make product perfusion qualification rate be increased to nearly 100% from 50% left and right.The material that magnetic core adopts of transformer 3 is that wide temperature, wideband, height are led material.
Carrying out isolating transformer when assembling, first at housing 1 with draw sintered glass insulator or ceramic insulator between pin 2, then the coil parcel polytetrafluoroethylraw raw material band to transformer 3, the lead-in wire of the coil of transformer 3 is welded together with the corresponding pin 2 that draws.Then adopt epoxy resin encapsulated technique transformer 3 to be fixed on to the inside of housing 1, then under the environment of nitrogen to carrying out parallel seam welding between pure nickel cover plate 5 and housing 1, make pure nickel cover plate 5 sealing be fixed on the top of housing 1.Finally can carry out laser mark to the surface of isolating transformer.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (8)
1. a MIL-STD-1553B bus isolating transformer, comprise: housing (1), from housing is extended, a plurality ofly draws pin (2) and the pulse transformer in housing (1) is set, the coil lead of described pulse transformer (3) welds together with the corresponding pin (2) that draws; It is characterized in that, the sealing of the upper end of described housing (1) is fixed with pure nickel cover plate (5), and described housing (1) and the material that draws pin (2) are kovar alloy.
2. a kind of MIL-STD-1553B bus isolating transformer as claimed in claim 1, is characterized in that, the surface of described housing (1) has nickel coating.
3. a kind of MIL-STD-1553B bus isolating transformer as claimed in claim 1, is characterized in that, described a plurality of surfaces of drawing pin (2) have Gold plated Layer.
4. a kind of MIL-STD-1553B bus isolating transformer as claimed in claim 1, is characterized in that, the inside of described housing (1) is also provided with corresponding fixing a plurality of a plurality of insulators (4) that draw pin (2).
5. a kind of MIL-STD-1553B bus isolating transformer as claimed in claim 4, is characterized in that, described insulator (4) is glass insulator or ceramic insulator.
6. a kind of MIL-STD-1553B bus isolating transformer as claimed in claim 1, is characterized in that, described pulse transformer (3) is fixed in housing (1) by encapsulated epoxy resin technique.
7. a kind of MIL-STD-1553B bus isolating transformer as claimed in claim 1, is characterized in that, the coil of the coil of described pulse transformer (3) for processing through polytetrafluoroethylraw raw material band parcel.
8. a kind of MIL-STD-1553B bus isolating transformer as claimed in claim 1, is characterized in that, described pure nickel cover plate (5) is fixed on the upper end of housing (1) by parallel weld seam process seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407990.6A CN103515058A (en) | 2013-09-09 | 2013-09-09 | Isolation transformer for MIL-STD-1553B |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407990.6A CN103515058A (en) | 2013-09-09 | 2013-09-09 | Isolation transformer for MIL-STD-1553B |
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| Publication Number | Publication Date |
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| CN103515058A true CN103515058A (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310407990.6A Pending CN103515058A (en) | 2013-09-09 | 2013-09-09 | Isolation transformer for MIL-STD-1553B |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783750A (en) * | 2016-12-05 | 2017-05-31 | 中国电子科技集团公司第五十五研究所 | A kind of crunch seal power package shell |
| CN106847481A (en) * | 2017-01-12 | 2017-06-13 | 惠州格利尔科技有限公司 | A kind of pin fixed plate of micro loop transformer and the preparation method of transformer |
| CN108811412A (en) * | 2018-08-06 | 2018-11-13 | 广东美的制冷设备有限公司 | Packaging body, switch power module, PCB modules and air conditioner |
| CN108901168A (en) * | 2018-08-06 | 2018-11-27 | 广东美的制冷设备有限公司 | Packaging body, switch power module, PCB module and air conditioner |
| CN113936886A (en) * | 2021-10-28 | 2022-01-14 | 西安微电子技术研究所 | 1553B bus isolation transformer packaging structure and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3496502A (en) * | 1967-06-14 | 1970-02-17 | Esquire Inc | Means for enclosing transformers |
| CN102237173A (en) * | 2010-05-05 | 2011-11-09 | 唐山尚新融大电子产品有限公司 | Isolating transformer |
| CN103050248A (en) * | 2012-12-26 | 2013-04-17 | 中国航天时代电子公司 | Weather-proof isolation transformer with metal full filling and sealing structure |
| CN203480988U (en) * | 2013-09-09 | 2014-03-12 | 陕西长岭电子科技有限责任公司 | Isolation transformer for MIL-STD-1553B bus |
-
2013
- 2013-09-09 CN CN201310407990.6A patent/CN103515058A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3496502A (en) * | 1967-06-14 | 1970-02-17 | Esquire Inc | Means for enclosing transformers |
| CN102237173A (en) * | 2010-05-05 | 2011-11-09 | 唐山尚新融大电子产品有限公司 | Isolating transformer |
| CN103050248A (en) * | 2012-12-26 | 2013-04-17 | 中国航天时代电子公司 | Weather-proof isolation transformer with metal full filling and sealing structure |
| CN203480988U (en) * | 2013-09-09 | 2014-03-12 | 陕西长岭电子科技有限责任公司 | Isolation transformer for MIL-STD-1553B bus |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783750A (en) * | 2016-12-05 | 2017-05-31 | 中国电子科技集团公司第五十五研究所 | A kind of crunch seal power package shell |
| CN106847481A (en) * | 2017-01-12 | 2017-06-13 | 惠州格利尔科技有限公司 | A kind of pin fixed plate of micro loop transformer and the preparation method of transformer |
| CN108811412A (en) * | 2018-08-06 | 2018-11-13 | 广东美的制冷设备有限公司 | Packaging body, switch power module, PCB modules and air conditioner |
| CN108901168A (en) * | 2018-08-06 | 2018-11-27 | 广东美的制冷设备有限公司 | Packaging body, switch power module, PCB module and air conditioner |
| CN108901168B (en) * | 2018-08-06 | 2024-03-26 | 广东美的制冷设备有限公司 | Package, switching power supply module, PCB module and air conditioner |
| CN108811412B (en) * | 2018-08-06 | 2024-04-26 | 广东美的制冷设备有限公司 | Package, switching power supply module, PCB module and air conditioner |
| CN113936886A (en) * | 2021-10-28 | 2022-01-14 | 西安微电子技术研究所 | 1553B bus isolation transformer packaging structure and method |
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