CN109413301B - Small video amplifier combination structure - Google Patents
Small video amplifier combination structure Download PDFInfo
- Publication number
- CN109413301B CN109413301B CN201811480894.3A CN201811480894A CN109413301B CN 109413301 B CN109413301 B CN 109413301B CN 201811480894 A CN201811480894 A CN 201811480894A CN 109413301 B CN109413301 B CN 109413301B
- Authority
- CN
- China
- Prior art keywords
- groove
- shell
- video amplifier
- mounting
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Structure Of Receivers (AREA)
Abstract
The invention provides a small video amplifier combined structure, which comprises a shell; the shell is in a conical tube shape, and the middle part of the shell is provided with an isolating layer to divide a cavity in the shell into an upper part and a lower part. According to the invention, from the physical isolation angle, three printed installation isolations are realized in the cavity, the cover plate and the conductive gasket are used for sealing installation during assembly, the high-frequency and low-frequency cable wiring grooves are designed on the outer surface of the cavity, and the shielding cover plate and the conductive gasket are assembled during the assembly of the fuse complete machine, so that the electromagnetic compatibility of the product is effectively improved; the effective space of the cavity is fully utilized, the high-frequency and low-frequency cable wiring grooves are designed on the outer surface, the mounting groove of the fuse antenna, the feedthrough capacitor is mounted, the mounting space of the whole shielding cover plate and the mounting space of the side printed board are utilized, the multifunctional design of the video amplifier is realized in a smaller space, the structure is compact, and the miniaturization development of products is facilitated.
Description
Technical Field
The invention relates to a small video amplifier combination structure.
Background
The video amplifier combination is the main component of a fuse system in a space product, and mainly has the functions of filtering, frequency selecting and separating required signals from video signals of a microwave mixer, amplifying the required signals with certain gain, sending the amplified signals to other components for signal processing and application, and having an automatic gain control function and a signal amplitude limiting output function. Is an extremely important component for signal processing of the fuze. Whether the structural design of the video amplifier is reasonable or not directly influences the filtering and separating effect of the video signal, the electromagnetic compatibility of the product and the coefficient of noise amplification. At present, the structure of a video amplifier mainly adopts a rectangular cavity structure, a whole block of printing is arranged in a large cavity, a printed board is designed in a partition mode, an output and input signal interface designed on the side face of the cavity is designed, and an upper cover plate of the cavity is designed. However, the video amplifier designed in this way has a large volume, is easy to generate signal mutual interference in the fuze, and is difficult to meet the requirement of high electromagnetic compatibility, and along with the miniaturization development requirement of the fuze, the development requirement of the fuze miniaturization is difficult to meet.
Specifically, the video amplifier in the prior art:
1) the common connector is used for signal output and input, so that the external surface is not fully utilized, and the miniaturization requirement and the electromagnetic compatibility requirement of a product are difficult to meet;
2) the video amplifier has a large volume and is in a cuboid shape, so that the video amplifier occupies a large space and volume of a fuse and cannot fully use the effective space of a fuse product;
3) the layout design is performed by using a single printed board, which is inconvenient for improving the electromagnetic compatibility of the video amplifier and reducing the volume of the video amplifier. The available space of the fuze cannot be fully utilized.
Disclosure of Invention
In order to solve the technical problems, the invention provides a small video amplifier combination structure, which aims to improve the electromagnetic compatibility of a video amplifier from the structure, fully utilize effective space for design, realize multiple functions of video amplifier antenna installation, electric connector connection, mechanism connection and the like, achieve the miniaturization design of the video amplifier and reduce the cost.
The invention is realized by the following technical scheme.
The invention provides a small video amplifier combined structure, which comprises a shell; the shell is in a conical tube shape, and the middle part of the shell is provided with an isolation layer which divides a cavity in the shell into an upper part and a lower part; on the side surface of the shell, a feedthrough capacitor mounting position is arranged on the top edge, and a lead antenna mounting groove, a first connector groove, a second connecting groove and an assembly mounting groove are arranged on the side surface of the feedthrough capacitor mounting position.
And a filter mounting groove is formed in one surface of the isolation layer facing the upper cavity.
The lead antenna mounting grooves are uniformly distributed on the vertical projection by taking the axis of the shell as the center of a circle.
The number of the lead antenna mounting grooves is four.
The two feedthrough capacitor mounting positions are symmetrically distributed by taking the axis of the shell as a central point.
First connector groove, second spread groove, subassembly mounting groove use per two subassembly mounting grooves, a first connector groove, a second spread groove as a set of, and two subassembly mounting grooves distribute from top to bottom in every group and are located the intermediate position, and first connector groove and second spread groove are located subassembly mounting groove both sides respectively.
The first connector groove, the second connector groove and the component mounting groove are uniformly distributed on the vertical projection by taking the axis of the shell as the center of a circle.
Each group of the first connector groove, the second connecting groove and the component mounting groove is located between every two lead antenna mounting grooves.
The invention has the beneficial effects that: from the physical isolation angle, three printed installation isolations are realized in the cavity, a cover plate and a conductive gasket are used for sealing installation during assembly, a high-frequency and low-frequency cable wiring groove is designed on the outer surface of the cavity, and a shielding cover plate and a conductive gasket are assembled during assembly of the fuse complete machine, so that the electromagnetic compatibility of the product is effectively improved; the effective space of the cavity is fully utilized, the high-frequency and low-frequency cable wiring grooves are designed on the outer surface, the mounting grooves of the lead antennas, the through capacitors are mounted, the mounting space of the whole shielding cover plate and the mounting space of the side printed board are utilized, the multifunctional design of the video amplifier is realized in a smaller space, the structure is compact, and the miniaturization development of products is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 with the upper cover plate removed;
FIG. 3 is a schematic view of the completed bottom structure of FIG. 1;
fig. 4 is a schematic structural view of the installation of fig. 1.
In the figure: 11-upper cover plate, 12-housing, 13-isolation layer, 14-filter installation groove, 21-lead antenna installation groove, 22-feedthrough capacitor installation site, 23-first connector groove, 24-second connector groove, 25-component installation groove, 31-lower printed board, 32-side printed board installation site, 33-upper printed board.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
A compact video amplifier assembly as shown in fig. 1 includes a housing 12; the shell 12 is in a conical tube shape, and the middle part of the shell 12 is provided with an isolation layer 13 which divides a cavity in the shell 12 into an upper part and a lower part; on the side surface of the housing 12, a feedthrough capacitor mounting site 22 is disposed at the top edge, and a lead antenna mounting groove 21, a first connector groove 23, a second connector groove 24, and a component mounting groove 25 are disposed at the side surface of the feedthrough capacitor mounting site 22.
And a filter mounting groove 14 is formed in one surface, facing the upper cavity, of the isolation layer 13.
The lead antenna mounting grooves 21 are uniformly distributed circumferentially on the vertical projection with the axis of the housing 12 as the center of a circle.
The number of the lead antenna mounting grooves 21 is four.
The number of the feedthrough capacitor mounting sites 22 is two, and the two feedthrough capacitor mounting sites are symmetrically distributed by taking the axis of the housing 12 as a central point.
The first connector groove 23, the second connector groove 24 and the module mounting groove 25 are uniformly distributed on the vertical projection with the axis of the housing 12 as the center of a circle.
The first connector groove 23, the second connector groove 24, and the component mounting groove 25 are each located between every two lead antenna mounting grooves 21.
Thus, the present invention:
1) the isolation between the upper and lower layers of printed boards and the side printed boards is realized through the cavity isolation layer, the mutual interference of signals in the upper and lower layers of printed boards is reduced, and the electromagnetic compatibility of the product is improved;
2) the antenna mounting groove, the mounting position of the small high-frequency connector, the high-low frequency cable wiring groove and the mounting position of the shielding cover plate of the high-low frequency cable are designed in the outer surface space of the cavity, so that the mutual influence of signals transmitted by the high-low cable on other components of the fuse is reduced;
3) by adding the conductive gaskets on the upper cover plate, the lower cover plate and the side cover plate of the video amplifier, the signal leakage in printing is reduced, and the signal interference on other components of the fuse and the signal interference of other components are reduced;
4) the video amplifier cavity is designed to be conical, and a high-low frequency cable wiring groove, a wiring installation groove, a shielding cover plate installation space and a small printed board installation space are designed on the outer surface, so that the multifunctional design and the compact structure of the video amplifier are realized in a smaller space, and the miniaturization is realized;
5) the power signal input end feedthrough capacitor is designed on the side surface of the cavity, so that large occupied space and high cost caused by using a power filter are avoided.
Claims (5)
1. A compact video amplifier assembly comprising a housing (12), characterized in that: the shell (12) is in a conical tube shape, and an isolation layer (13) is arranged in the middle of the shell (12) to divide a cavity in the shell (12) into an upper part and a lower part; a feedthrough capacitor mounting position (22) is arranged on the top edge of the side surface of the shell (12), and a lead antenna mounting groove (21), a first connector groove (23), a second connector groove (24) and an assembly mounting groove (25) are arranged on the side surface of the feedthrough capacitor mounting position (22); the lead antenna mounting grooves (21) are uniformly distributed on the vertical projection by taking the axis of the shell (12) as the center of a circle; the first connector groove (23), the second connecting groove (24) and the assembly mounting grooves (25) are in a group of every two assembly mounting grooves (25), one first connector groove (23) and one second connecting groove (24), the two assembly mounting grooves (25) in each group are distributed at the middle positions up and down, and the first connector groove (23) and the second connecting groove (24) are respectively positioned at two sides of the assembly mounting grooves (25); each group of the first connector groove (23), the second connector groove (24) and the assembly mounting groove (25) is positioned between every two lead antenna mounting grooves (21); the upper cover plate is added with a conductive gasket.
2. A compact video amplifier assembly as defined in claim 1, wherein: and a filter mounting groove (14) is formed in one surface, facing the upper cavity, of the isolation layer (13).
3. A compact video amplifier assembly as defined in claim 1, wherein: the number of the lead antenna mounting grooves (21) is four.
4. A compact video amplifier assembly as defined in claim 1, wherein: the number of the through capacitor mounting positions (22) is two, and the through capacitor mounting positions are symmetrically distributed by taking the axis of the shell (12) as a central point.
5. A compact video amplifier assembly as defined in claim 1, wherein: the first connector groove (23), the second connector groove (24) and the component mounting groove (25) are uniformly distributed on the vertical projection by taking the axis of the shell (12) as the center of a circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811480894.3A CN109413301B (en) | 2018-12-05 | 2018-12-05 | Small video amplifier combination structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811480894.3A CN109413301B (en) | 2018-12-05 | 2018-12-05 | Small video amplifier combination structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109413301A CN109413301A (en) | 2019-03-01 |
| CN109413301B true CN109413301B (en) | 2020-12-22 |
Family
ID=65457432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811480894.3A Active CN109413301B (en) | 2018-12-05 | 2018-12-05 | Small video amplifier combination structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109413301B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243243A (en) * | 2021-12-16 | 2022-03-25 | 贵州航天电子科技有限公司 | Miniaturized cavity structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104125728A (en) * | 2014-07-28 | 2014-10-29 | 安徽四创电子股份有限公司 | Plug-in type electronic transmitter |
| CN104241974A (en) * | 2013-06-06 | 2014-12-24 | 华为终端有限公司 | Signal isolator |
| CN104716107A (en) * | 2013-12-12 | 2015-06-17 | 飞思卡尔半导体公司 | Semiconductor package having an isolation wall to reduce electromagnetic coupling |
| CN206099905U (en) * | 2016-08-31 | 2017-04-12 | 安徽华东光电技术研究所 | Microwave four -channel amplifier module |
| CN106937019A (en) * | 2017-03-31 | 2017-07-07 | 贵州航天电子科技有限公司 | A kind of video amplifier |
-
2018
- 2018-12-05 CN CN201811480894.3A patent/CN109413301B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241974A (en) * | 2013-06-06 | 2014-12-24 | 华为终端有限公司 | Signal isolator |
| CN104716107A (en) * | 2013-12-12 | 2015-06-17 | 飞思卡尔半导体公司 | Semiconductor package having an isolation wall to reduce electromagnetic coupling |
| CN104125728A (en) * | 2014-07-28 | 2014-10-29 | 安徽四创电子股份有限公司 | Plug-in type electronic transmitter |
| CN206099905U (en) * | 2016-08-31 | 2017-04-12 | 安徽华东光电技术研究所 | Microwave four -channel amplifier module |
| CN106937019A (en) * | 2017-03-31 | 2017-07-07 | 贵州航天电子科技有限公司 | A kind of video amplifier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109413301A (en) | 2019-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5671220A (en) | Satellite channel interface in indoor unit used for satellite data communication | |
| US5268810A (en) | Electrical connector incorporating EMI filter | |
| US20100244982A1 (en) | Ultra wide-band dual-frequency combiner | |
| CN103563492A (en) | Printed circuit board and diplexer circuit | |
| JP2017535183A (en) | RF unit | |
| EP3930116B1 (en) | Filter connection apparatus and filter method | |
| EP2763323B1 (en) | High-frequency module | |
| CN104900951A (en) | Dielectric filter and communication equipment | |
| CN109413301B (en) | Small video amplifier combination structure | |
| CN103945023A (en) | Multilayer Substrate Module | |
| WO2016188193A1 (en) | Isolator | |
| WO2021081769A1 (en) | Cavity filter and electromagnetic wave device | |
| US11777188B2 (en) | Cooling in a waveguide arrangement | |
| JP3580529B2 (en) | Coaxial circulator and duplexer | |
| JPH0476541B2 (en) | ||
| CN109873655A (en) | Microwave transmitting and receiving channel components | |
| CN210403982U (en) | Filtering component, antenna device and base station system | |
| CN212677158U (en) | Multi-channel transceiving component based on lamination design | |
| CN219761419U (en) | Circuit board, stratum of circuit board and intelligent device with voice recognition function | |
| CN112751580A (en) | P-waveband LTCC assembly based on clock shielding and power filtering | |
| CN211429271U (en) | Circuit layout compatible with mixing direction | |
| CN106790779B (en) | Communication equipment | |
| CN213243940U (en) | Broadband filter for multi-signal transmission | |
| CN201623832U (en) | Anti-electromagnetic interference miniature microphone | |
| CN202121777U (en) | Anti-electromagnetic interference condenser microphone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |