CN111029708A - Assembly process of cavity filter - Google Patents
Assembly process of cavity filter Download PDFInfo
- Publication number
- CN111029708A CN111029708A CN201911258687.8A CN201911258687A CN111029708A CN 111029708 A CN111029708 A CN 111029708A CN 201911258687 A CN201911258687 A CN 201911258687A CN 111029708 A CN111029708 A CN 111029708A
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- China
- Prior art keywords
- cavity filter
- assembly process
- cavity
- testing
- assembling
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- 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.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
- H01P11/007—Manufacturing frequency-selective devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
Abstract
The invention discloses an assembly process of a cavity filter, which comprises the following steps: taking and counting, and assembling parts: assembling and fixing the parts according to the assembling flow of the cavity filter, and simultaneously electrically connecting the electronic components; detecting the appearance; and (3) performance testing: testing the working electrical property of the cavity filter, and removing the cavity filter with unqualified performance indexes; and (3) sealing test: fastening a tuning screw and a coupling screw of the cavity filter, and testing the mechanical performance of the cavity filter before packaging; packaging and putting down: the cavity filter qualified in detection is packaged and placed off shelf through the packaging box, the design is reasonable, the cavity filter is strictly assembled, tested and screened, and a subsequent sealing shielding process is matched, so that the interference of the external environment can be effectively avoided, and the working performance and the yield of the cavity filter are greatly improved.
Description
Technical Field
The invention relates to the technical field of cavity filters, in particular to an assembly process of a cavity filter.
Background
Filters are indispensable electronic devices in microwave communication systems, and their performance directly affects the quality of the communication system. As communication technologies are increasingly updated, more stringent requirements are placed on the performance of filters. Among various types of filters, the cavity filter has the characteristics of low insertion loss and high power resistance, and is widely used. The cavity filter is formed by integrally cutting metal and has a firm structure.
However, in the assembly process of the existing cavity filter, the assembly quality of the filter is not well controlled and controlled, so that the working performance of the cavity filter is greatly reduced, and in addition, the quality detection of the cavity filter does not fully and effectively play a role, so that the defective rate of the cavity filter is greatly improved, and certain defects exist.
Disclosure of Invention
The present invention is directed to overcoming the above problems in the prior art and providing a process for assembling a cavity filter.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
an assembly process of a cavity filter comprises the following steps:
s100, taking and counting: picking up parts from a warehouse according to a cavity filter part list, and checking the types and the number of the parts according to the part list;
s200, assembling parts: assembling and fixing the parts according to the assembling flow of the cavity filter, and simultaneously electrically connecting the electronic components;
s300, appearance detection: detecting the appearance of the cavity filter, and removing the cavity filter with unqualified appearance;
s400, performance test: testing the working electrical property of the cavity filter, and removing the cavity filter with unqualified performance indexes;
s500, sealing test: fastening a tuning screw and a coupling screw of the cavity filter, and testing the mechanical performance of the cavity filter before packaging;
s600, packaging and putting down: and packaging the cavity filter qualified for detection through a packaging box and putting the cavity filter off the shelf.
Preferably, in the assembly process of the cavity filter, in step S200, the assembly and fixation of the components and the welding of the electronic component are performed in a dust-free environment, and the solder joints of the electronic component are detected.
Preferably, in the assembly process of the cavity filter, the detection of the solder joints of the electronic component includes a cold solder joint, solder bubbles, a solder joint size, and a wetting angle.
Preferably, in the assembly process of the cavity filter, the wetting angle detected by the welding points of the electronic component is 15-30 degrees.
Preferably, in the assembly process of the cavity filter, in step S300, the appearance detection includes wear and crack of the cavity filter housing.
Preferably, in the assembly process of the cavity filter, in step S400, the performance test of the cavity filter is an amplitude-frequency characteristic test.
Preferably, in the assembly process of the cavity filter, in step S500, the sealing test specifically includes:
s501, firmly fixing a tuning screw and a coupling screw of the cavity filter by adopting DG-4 epoxy resin;
s502, testing the cavity filter at high and low temperatures;
s503, carrying out an impact vibration experiment on the cavity filter.
The invention has the beneficial effects that:
the invention has reasonable design, can effectively avoid the interference of the external environment by strictly assembling, testing and screening the cavity filter and matching with the subsequent sealing and shielding process, and greatly improves the working performance and the yield of the cavity filter.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flow chart of an assembly process of the cavity filter of the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1, the present embodiment is an assembling process of a cavity filter, including the following steps:
s100, taking and counting: picking up parts from a warehouse according to a cavity filter part list, and checking the types and the number of the parts according to the part list;
s200, assembling parts: assembling and fixing parts according to the assembling flow of the cavity filter, and simultaneously electrically connecting electronic components, wherein the assembling and fixing of the parts and the welding of the electronic components are carried out in a dust-free environment, and welding spots of the electronic components are detected, wherein the welding spot detection of the electronic components comprises a rosin joint, welding bubbles, the size of the welding spot and a wetting angle, and the wetting angle of the welding spot detection of the electronic components is 15-30 degrees;
s300, appearance detection: detecting the appearance of the cavity filter, and removing the cavity filter with unqualified appearance, wherein the appearance detection comprises the abrasion and the cracking of a shell of the cavity filter;
s400, performance test: testing the working electrical property of the cavity filter, and removing the cavity filter with unqualified performance index, wherein the performance test of the cavity filter is an amplitude-frequency characteristic test;
s500, sealing test: fastening a tuning screw and a coupling screw of the cavity filter, and testing the mechanical performance of the cavity filter before packaging, specifically: firstly, adopting DG-4 epoxy resin to firmly fix a tuning screw and a coupling screw of a cavity filter; then, carrying out high and low temperature test on the cavity filter; and finally, carrying out an impact vibration experiment on the cavity filter. The sealing and fixing operation effectively isolates the inner cavity of the cavity filter from the external environment, and the interference of the external environment on the working performance of the cavity filter is avoided.
S600, packaging and putting down: and packaging the cavity filter qualified for detection through a packaging box and putting the cavity filter off the shelf.
The cavity filter is reasonable in design, interference of the external environment can be effectively avoided by strictly assembling, testing and screening the cavity filter and matching with a subsequent sealing shielding process, and the working performance and the yield of the cavity filter are greatly improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The assembly process of the cavity filter is characterized in that: the method comprises the following steps:
s100, taking and counting: picking up parts from a warehouse according to a cavity filter part list, and checking the types and the number of the parts according to the part list;
s200, assembling parts: assembling and fixing the parts according to the assembling flow of the cavity filter, and simultaneously electrically connecting the electronic components;
s300, appearance detection: detecting the appearance of the cavity filter, and removing the cavity filter with unqualified appearance;
s400, performance test: testing the working electrical property of the cavity filter, and removing the cavity filter with unqualified performance indexes;
s500, sealing test: fastening a tuning screw and a coupling screw of the cavity filter, and testing the mechanical performance of the cavity filter before packaging;
s600, packaging and putting down: and packaging the cavity filter qualified for detection through a packaging box and putting the cavity filter off the shelf.
2. The assembly process of the cavity filter according to claim 1, wherein: in step S200, the assembly and fixation of the parts and the welding of the electronic components are performed in a dust-free environment, and the solder joints of the electronic components are detected.
3. The assembly process of the cavity filter according to claim 2, wherein: the detection of the welding spots of the electronic component comprises cold joint, welding bubbles, welding spot size and wetting angle.
4. The assembly process of the cavity filter according to claim 3, wherein: the wetting angle of the electronic component welding spot detection is 15-30 degrees.
5. The assembly process of the cavity filter according to claim 1, wherein: in step S300, the appearance detection includes wear and crack of the cavity filter housing.
6. The assembly process of the cavity filter according to claim 1, wherein: in step S400, the performance test of the cavity filter is an amplitude-frequency characteristic test.
7. The assembly process of the cavity filter according to claim 1, wherein: in step S500, the sealing test specifically includes:
s501, firmly fixing a tuning screw and a coupling screw of the cavity filter by adopting DG-4 epoxy resin;
s502, testing the cavity filter at high and low temperatures;
s503, carrying out an impact vibration experiment on the cavity filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911258687.8A CN111029708A (en) | 2019-12-10 | 2019-12-10 | Assembly process of cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911258687.8A CN111029708A (en) | 2019-12-10 | 2019-12-10 | Assembly process of cavity filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111029708A true CN111029708A (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911258687.8A Pending CN111029708A (en) | 2019-12-10 | 2019-12-10 | Assembly process of cavity filter |
Country Status (1)
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| CN (1) | CN111029708A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050087284A1 (en) * | 2003-10-27 | 2005-04-28 | Dennis Tebbe | Method of fabricating an RF substrate with selected electrical properties |
| CN105489997A (en) * | 2015-11-24 | 2016-04-13 | 武汉凡谷电子技术股份有限公司 | Assembling technology for metal cover board and cavity component of cavity filter |
| CN106129574A (en) * | 2016-08-25 | 2016-11-16 | 安徽华东光电技术研究所 | Cavity body filter and preparation method thereof |
| CN107742291A (en) * | 2017-10-20 | 2018-02-27 | 凌云光技术集团有限责任公司 | A kind of the defects of photovoltaic glass detection method and device |
-
2019
- 2019-12-10 CN CN201911258687.8A patent/CN111029708A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050087284A1 (en) * | 2003-10-27 | 2005-04-28 | Dennis Tebbe | Method of fabricating an RF substrate with selected electrical properties |
| CN105489997A (en) * | 2015-11-24 | 2016-04-13 | 武汉凡谷电子技术股份有限公司 | Assembling technology for metal cover board and cavity component of cavity filter |
| CN106129574A (en) * | 2016-08-25 | 2016-11-16 | 安徽华东光电技术研究所 | Cavity body filter and preparation method thereof |
| CN107742291A (en) * | 2017-10-20 | 2018-02-27 | 凌云光技术集团有限责任公司 | A kind of the defects of photovoltaic glass detection method and device |
Non-Patent Citations (4)
| Title |
|---|
| 无: "装配过程控制系统流程图", 《豆丁网》 * |
| 杨平: "《微电子设备与器件封装加固技术》", 31 December 2005, 国防工业出版社 * |
| 郭慧伶: "武汉凡谷（002194）：经营稳健，市场广阔，业绩持续增长", 《天风证券》 * |
| 高宏伟 等: "《电子制造装备技术》", 1 September 2015, 西安电子科大出版社 * |
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Application publication date: 20200417 |