CN216087187U - Split welded radio frequency housing - Google Patents
Split welded radio frequency housing Download PDFInfo
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- CN216087187U CN216087187U CN202121533756.4U CN202121533756U CN216087187U CN 216087187 U CN216087187 U CN 216087187U CN 202121533756 U CN202121533756 U CN 202121533756U CN 216087187 U CN216087187 U CN 216087187U
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- radio frequency
- shell
- welded
- casing
- split
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Abstract
The utility model discloses a split-type welded radio frequency shell which comprises a shell and a parting strip plate, wherein the parting strip plate is transversely arranged in a cavity of the shell and divides the cavity of the shell into two independent installation cavities, three feed pins and two radio frequency terminals are arranged on the shell, the three feed pins are all arranged on the shell on one side of the parting strip plate, the two radio frequency terminals are respectively arranged on the shells on two sides of the parting strip plate, and the parting strip plate is provided with two feed pins and one radio frequency terminal. The feed pin on the division bar plate can realize signal transmission between the two electronic substrates or other functional signal transmission, and meanwhile, the division bar plate can also play a role in preventing the two substrates from generating signal interference in the operation process; meanwhile, the method has the advantages of low processing difficulty, low cost, good air tightness and suitability for various shells with high difficulty and poor processing.
Description
Technical Field
The utility model belongs to the technical field of radio frequency circuit packaging, and particularly relates to a split-type welded radio frequency shell.
Background
With the rapid development of satellite-borne, ship-borne, airborne, missile-borne and other weaponry and civil communication systems, integrated circuits with large size, heavy weight and single function cannot meet the use requirements of high performance and high efficiency, and miniaturized and multifunctional circuits are urgently needed to reduce the size and weight of the whole machine and meet the use requirements of multiple functions. Radio frequency circuits are favored in electronic systems because of their small size, long life, high reliability, low noise, low power consumption, high operating efficiency and high output power.
In the rapid development of miniaturization and intensification of radio frequency circuits, a technology for providing two electronic substrates in the same package casing has also been developed. However, the prior art also has the problems of poor stability and air tightness, signal interference, high processing difficulty and the like.
SUMMERY OF THE UTILITY MODEL
The present invention addresses the above-identified problems of the prior art by providing a split welded radio frequency enclosure. The shell is applied to weaponry and civil communication systems, has the advantages of signal interference prevention, good insulation and voltage resistance, wide working temperature range (-55-125 ℃) and the like, and is suitable for researching and producing high-quality packaging shell products, in particular to high-frequency radio frequency shells.
The utility model solves the technical problems through the following technical means:
the utility model provides a split type welded radio frequency shell, includes casing and parting bead board, the parting bead board is horizontal in the cavity of casing, separates into two independent installation cavitys with the cavity of casing, be equipped with three feed needle and two radio frequency terminals on the casing, it is three feed the needle and all set up on the casing of parting bead board one side, two the radio frequency terminal sets up respectively on the casing of parting bead board both sides, be equipped with two feed needles and a radio frequency terminal on the parting bead board.
Furthermore, when the partition plate and the shell are welded, two feed pins and a radio frequency terminal are welded on the partition plate.
Furthermore, when the partition plate is welded with the shell, three feed pins and two radio frequency terminals are welded on the shell.
Further, the welding seam corresponding to the welding is filled with Ag72Cu28 solder.
The utility model has the beneficial effects that: when the radio frequency shell is used, the electronic substrates are firstly placed into the separated cavities, the feed pins on the division bar plate can realize signal transmission or other functional signal transmission between the two electronic substrates, and meanwhile, the division bar plate can also play a role in preventing the two substrates from generating signal interference in the operation process; meanwhile, the processing difficulty is low, the cost is low, the method is suitable for various shells which are high in difficulty and not easy to process, the two circuit substrates are supported in the inner space, signals are not interfered with each other, the good air tightness requirement is achieved, the AgCu is adopted as the welding material, the range of the used welding shell is wide, and the processing price is low.
Drawings
Fig. 1 is a schematic structural view of a radio frequency housing.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1, a split welded radio frequency housing, including casing 1 and parting bead board 2, wherein parting bead board 2 is horizontal in the cavity of casing 1, separate into two independent installation cavity with the cavity of casing 1, an electronic substrate has been placed respectively to these two installation cavities, be equipped with three feed needle 3 and two radio frequency terminal 4 on the casing 1, wherein three feed needle 3 all sets up on the casing 1 of parting bead board 2 one side, two radio frequency terminal 4 set up respectively on the casing 1 of parting bead board 2 both sides, be equipped with two feed needles 3 and one radio frequency terminal 4 on the parting bead board 2.
The radio frequency housing of this structure places the electronic substrate into the cavity that separates earlier when using, and the feed pin 3 on the parting bead board 2 can realize the signal transmission between two electronic substrates or other functional signal transmission, and the parting bead board 2 self can also play the effect that prevents two substrates at the operation in-process and take place signal interference simultaneously.
The integrated machining difficulty of the shell is high, and especially the machining precision of the internal radio frequency hole pair is extremely accurate, so that the embodiment also provides a forming process of the split-type welded radio frequency shell.
Relates to parts and materials: the casing 1, the division bar plate 2, the feed pin 3 (kovar lead), the radio frequency terminal 4, the DM-305 glass and the Ag72Cu28 solder, wherein 72 and 28 in the Ag72Cu28 solder respectively represent mass fractions of two components.
The process is summarized as follows: the shell 1 is firstly sintered with glass and welded with the radio frequency terminal 4, the division bar plate 2 is also sintered with glass and welded with the radio frequency terminal 4, and finally the shell 1 and the division bar plate 2 are integrally welded.
Specifically, the housing 1 and the division bar plate 2 are respectively subjected to 970-degree high-temperature glass sintering, and then are welded through the 830-degree radio frequency terminal 4, and the high-temperature and low-temperature welding is performed separately so as not to affect the performance of the radio frequency terminal 4. Then, the division bar plate 2 is arranged in a groove in the inner cavity of the shell 1 (it should be noted that the division bar plate 2 cannot be protruded, and the drawing style is noted to avoid reverse installation), and meanwhile, silver-copper solder sheets are arranged in the grooves at two sides of the division bar plate 2, and tweezers are used for assisting in plugging the silver-copper solder sheets into the groove bottom, so that the problem of poor appearance caused by the fact that the solder sheets touch the feed pins 3 is avoided. After the device is installed in place, the furnace temperature is adjusted to meet the requirement that the silver-copper solder fully fills the gap between the shell and the radio frequency terminal 4, the heating temperature is 830 ℃, after the product comes out, the appearance of the shell and the radio frequency terminal 4 is required to be detected to meet the detection standard of GJB2440A, and the lead is protected during the process to prevent bending.
The split type welding radio frequency shell of the embodiment is low in processing difficulty and low in cost, is applicable to shells which are high in difficulty and not easy to process, the inner space supports the two circuit substrates, signals are not interfered with each other, the split type welding radio frequency shell has a good air tightness requirement, the welding materials adopt Ag72Cu28, the range of the used welding shell is wide, and the processing price is low.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. The utility model provides a split type welded radio frequency shell, its characterized in that, includes casing (1) and parting bead board (2), parting bead board (2) are horizontal in the cavity of casing (1), separate into two independent installation cavitys with the cavity of casing (1), be equipped with three feed needle (3) and two radio frequency terminal (4), three on casing (1) feed needle (3) all set up on casing (1) that parting bead board (2) one side, two radio frequency terminal (4) set up respectively on casing (1) that separates slat (2) both sides, be equipped with two feed needle (3) and a radio frequency terminal (4) on parting bead board (2).
2. The split-welded radio frequency housing according to claim 1, wherein the spacer plate (2) is welded with the housing (1) by welding two feeding pins (3) and one radio frequency terminal (4) onto the spacer plate (2).
3. The split-welded radio frequency housing according to claim 1, wherein three feed pins (3) and two radio frequency terminals (4) are welded to the housing (1) when the spacer plate (2) is welded to the housing (1).
4. The split-welded radio frequency enclosure according to claim 2 or 3, wherein the welds are filled with Ag72Cu28 solder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121533756.4U CN216087187U (en) | 2021-07-07 | 2021-07-07 | Split welded radio frequency housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121533756.4U CN216087187U (en) | 2021-07-07 | 2021-07-07 | Split welded radio frequency housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216087187U true CN216087187U (en) | 2022-03-18 |
Family
ID=80664764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121533756.4U Active CN216087187U (en) | 2021-07-07 | 2021-07-07 | Split welded radio frequency housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216087187U (en) |
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2021
- 2021-07-07 CN CN202121533756.4U patent/CN216087187U/en active Active
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