CN103050763B - Cavity body filter rapid welding technique - Google Patents
Cavity body filter rapid welding technique Download PDFInfo
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- CN103050763B CN103050763B CN201210582749.2A CN201210582749A CN103050763B CN 103050763 B CN103050763 B CN 103050763B CN 201210582749 A CN201210582749 A CN 201210582749A CN 103050763 B CN103050763 B CN 103050763B
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Abstract
The invention discloses cavity body filter rapid welding technique, it comprises the following steps: the part that the upper surface of S1, clean cavity contacts with cavity upper surface with lid; The surperficial coated with solder of S2, the part that contacts with cavity upper surface at lid; S3, the lid that has applied scolder is buckled on cavity, and locking; S4, the cavity after locking and lid are put into the high frequency induction welding coil that picks, switch on power, the high frequency induction welding output current that picks, produces heat, the welding of having heated lid and cavity. The invention has the beneficial effects as follows: adopt rapid welding technique to complete being connected of cavity and lid, can greatly improve efficiency of assembling, reduction material cost; Do not need to arrange screw, reduced processing cost and process time; Greatly reduce the wall thickness of cavity, therefore further reduced material cost, meanwhile, the dimensional accuracy while having reduced cavity casting, has reduced processing cost equally.
Description
Technical field
The present invention relates to cavity body filter technical field, particularly a kind of cavity body filter rapid welding technique.
Background technology
Wave filter is widely used in the communications field as a kind of frequency selection device, especially field of radio frequency communication. In base station, wave filter is used for selecting signal of communication, the clutter outside filtering communication signal frequency or interfering signal.
In base station system, generally adopt cavity body filter at present, cavity body filter comprises the assemblies such as cavity, cover plate, inner wire, pcb board. Adding man-hour, cover plate and cavity are connected by screw, at the upper surface of cavity, screw is set, on the cover board arranging can be by the through hole of screw, screw is through being connected with the screw of cavity upper surface after the screw hole of cover plate, thereby cover plate is fastened to and on cavity, forms airtight electromagnetic shielding space.
Owing to wanting airtight signal, so need the quantity of the screw arranging very many, cause efficiency of assembling very low, simultaneously the corresponding rising of material cost. In addition, the screw of respective numbers also need to be set on cavity, the through hole of respective numbers is on the cover board set, increase processing cost and process time. And adopt screw assembling fastening structure, on cavity, in order to be equipped with screw, the wall thickness of cavity need to be set to the thickness that is enough to arrange screw, and this thickness is generally 4～5mm, causes cavity wall thickness thicker, has improved equally material cost; The increase of cavity wall thickness simultaneously, diminishes the space that inner wire is installed in cavity, and for inner wire can be installed smoothly, the dimensional accuracy while needing to improve casting, has increased processing cost equally.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, a kind of cavity body filter rapid welding technique that improves efficiency of assembling, reduces material cost is provided.
Object of the present invention is achieved through the following technical solutions: cavity body filter rapid welding technique, and it comprises the following steps:
The part that the upper surface of S1, clean cavity contacts with cavity upper surface with lid;
The surperficial coated with solder of S2, the part that contacts with cavity upper surface at lid;
S3, the lid that has applied scolder is buckled on cavity, and locking;
S4, the cavity after locking and lid are put into the high frequency induction welding coil that picks, switch on power, the high frequency induction welding output current that picks, produces heat, the welding of having heated lid and cavity.
Locking operation in described step S3 is for adopting fixture that lid is pressed on cavity.
The thickness of the part that described lid contacts with cavity upper surface is less than the thickness 1～2mm of the part that lid contacts with cavity upper surface.
The wall thickness of described cavity is 1～3mm.
The present invention has the following advantages: the present invention adopts rapid welding technique to complete being connected of cavity and lid, than screw fixation method of the prior art, can greatly improve efficiency of assembling; The present invention does not need screw fastening, greatly reduces material cost; The present invention need to not arrange the screw with screw fit on cavity and lid, has further reduced processing cost and process time; On cavity wall of the present invention, do not need to arrange screw, it is better that simultaneously welding connection structure is compared the electrical property of screw connecting structure, therefore can greatly reduce the wall thickness of cavity, therefore further reduced material cost, simultaneously, the reducing of cavity wall thickness just increased the space in cavity accordingly, and the dimensional accuracy while therefore having reduced greatly compared to existing technology cavity casting, has reduced processing cost equally.
Detailed description of the invention
The present invention will be further described below, and protection scope of the present invention is not limited to the following stated:
Cavity body filter rapid welding technique, it comprises the following steps:
The part that the upper surface of S1, clean cavity contacts with cavity upper surface with lid, removes greasy dirt and oxide skin;
The surperficial coated with solder of S2, the part that contacts with cavity upper surface at lid;
S3, the lid that has applied scolder is buckled on cavity, and locking;
S4, the cavity after locking and lid are put into the high frequency induction welding coil that picks, switch on power, the high frequency induction welding output current that picks, produces heat, the welding of having heated lid and cavity.
Locking operation in described step S3 is for adopting fixture that lid is pressed on cavity.
The thickness of the part that described lid contacts with cavity upper surface is less than the thickness 1～2mm of the part that lid contacts with cavity upper surface, before carrying out step S1, the surface of the part that lid is contacted with cavity upper surface processes, making the surface of the part that the surface of this part contacts with cavity upper surface than lid is to be highly the groove of 1～2mm, before welding, scolder is arranged in groove.
The wall thickness of described cavity is 1～3mm.
Invention is used high frequency induction welding to pick as heating source, and its operation principle is the large electric current of heater output high frequency, and the variation of electric current produces high-intensity magnetic field, and the variation in magnetic field makes the conductor that is arranged in magnetic field produce eddy current, thereby produces heat.
Claims (1)
1. cavity body filter rapid welding technique, is characterized in that: it comprises the following steps:
S1, the surface of lid and cavity upper surface contact portion is processed to the groove that the surface that makes this part is 1～2mm with respect to the surperficial height of formation of lid and cavity upper surface contact portion;
The part that the upper surface of clean cavity contacts with cavity upper surface with lid, removes greasy dirt and oxide skin;
The surperficial coated with solder of S2, the part that contacts with cavity upper surface at lid, is arranged in scolder in described groove;
S3, the lid that has applied scolder is buckled on cavity, and with fixture locking;
S4, the cavity after locking and lid are put into the high frequency induction welding coil that picks, switch on power, the high frequency induction welding output current that picks, the variation of electric current produces high-intensity magnetic field, the variation in magnetic field makes the conductor that is arranged in magnetic field produce eddy current, thereby produces heat, the welding of having heated lid and cavity; The wall thickness of described cavity is 1～3mm;
Adopt rapid welding technique to complete being connected of cavity and lid, than screw fixation method, can improve efficiency of assembling; Do not need screw fastening, can reduce material cost; Need on cavity and lid, not arrange and the screw of screw fit, can reduce processing cost and process time; On cavity wall, do not need to arrange screw, it is better that simultaneously welding connection structure is compared the electrical property of screw connecting structure, can reduce the wall thickness of cavity, further reduce material cost, simultaneously, the reducing of cavity wall thickness just increased the space in cavity accordingly, and the requirement to dimensional accuracy therefore can reduce cavity casting time, cuts down finished cost equally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582749.2A CN103050763B (en) | 2012-12-28 | 2012-12-28 | Cavity body filter rapid welding technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582749.2A CN103050763B (en) | 2012-12-28 | 2012-12-28 | Cavity body filter rapid welding technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103050763A CN103050763A (en) | 2013-04-17 |
| CN103050763B true CN103050763B (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210582749.2A Active CN103050763B (en) | 2012-12-28 | 2012-12-28 | Cavity body filter rapid welding technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN103050763B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495574B (en) * | 2013-10-18 | 2015-06-03 | 宁波泰立电子科技有限公司 | Cavity cleaning device of ion fan of cavity filter |
| CN111370836A (en) * | 2018-12-26 | 2020-07-03 | 广东省合正行通信科技有限责任公司 | Cavity filter assembling method for welding cover plate |
| CN111375863A (en) * | 2020-04-10 | 2020-07-07 | 张书香 | High-frequency insulator welding fixture |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190472A (en) * | 2006-11-24 | 2008-06-04 | 北京新雷能有限责任公司 | Method for using high-frequency induction welding machine to implement module welding |
| CN202564514U (en) * | 2012-03-22 | 2012-11-28 | 深圳市大富科技股份有限公司 | Adjustable filter |
| CN202564517U (en) * | 2012-04-28 | 2012-11-28 | 成都泰格微波技术股份有限公司 | Novel low frequency cavity filter |
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2012
- 2012-12-28 CN CN201210582749.2A patent/CN103050763B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190472A (en) * | 2006-11-24 | 2008-06-04 | 北京新雷能有限责任公司 | Method for using high-frequency induction welding machine to implement module welding |
| CN202564514U (en) * | 2012-03-22 | 2012-11-28 | 深圳市大富科技股份有限公司 | Adjustable filter |
| CN202564517U (en) * | 2012-04-28 | 2012-11-28 | 成都泰格微波技术股份有限公司 | Novel low frequency cavity filter |
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| CN103050763A (en) | 2013-04-17 |
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