CN103050763A - Quick welding process for cavity filter - Google Patents
Quick welding process for cavity filter Download PDFInfo
- Publication number
- CN103050763A CN103050763A CN2012105827492A CN201210582749A CN103050763A CN 103050763 A CN103050763 A CN 103050763A CN 2012105827492 A CN2012105827492 A CN 2012105827492A CN 201210582749 A CN201210582749 A CN 201210582749A CN 103050763 A CN103050763 A CN 103050763A
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- cavity
- lid
- cover body
- contacts
- frequency induction
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Abstract
The invention discloses a quick welding process for a cavity filter. The process comprises the following steps of: 1, cleaning the upper surface of a cavity and a part, which contacts with the upper surface of the cavity, of a cover body; 2, coating a solder on the surface of the part, which contacts with the upper surface of the cavity, of the cover body; 3, buckling the cover body on which the solder is coated on the cavity, and locking the cover body and the cavity; and 4, placing the cavity and the cover body, which are locked, into a coil of a high-frequency induction welder, and switching on the high-frequency induction welder to enable the high-frequency induction welder to output current and generate heat for heating to finish the welding of the cover body and the cavity. The invention has the beneficial effects that the quick welding process is used for finishing the welding of the cavity and the cover body, so that the assembly efficiency can be greatly improved, and the material cost can be lowered; screw holes are not required, so that the machining time and the machining cost are saved; and the wall thickness of the cavity is greatly decreased, so that the material cost is further lowered, the dimensional accuracy during the casting of the cavity is reduced, and the machining cost is also lowered.
Description
Technical field
The present invention relates to the cavity body filter technical field, particularly a kind of cavity body filter rapid welding technique.
Background technology
Filter is widely used in the communications field as a kind of frequency selection device, especially field of radio frequency communication.In the base station, filter is used for selecting signal of communication, clutter or interference signal that the filtering communication signal frequency is outer.
Generally adopt cavity body filter in the base station system 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, namely the upper surface at cavity arranges screw, on the cover board arranging can be by the through hole of screw, the screw that screw passes behind the screw hole of cover plate with the cavity upper surface is connected, thereby cover plate is fastened to the airtight electromagnetic shielding space of formation on the cavity.
Owing to want airtight signal, so the quantity of the screw that need to arrange is very many, cause efficiency of assembling very low, simultaneously the corresponding rising of material cost.In addition, also need to the screw of respective numbers be set, on the cover board the through hole of respective numbers be set at cavity, increase processing cost and process time.And adopt screw assembling fastening structure, 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 on the cavity, and this thickness is generally 4～5mm, causes the cavity wall thickness thicker, has improved equally material cost; The simultaneously increase of cavity wall thickness diminishes so that the space of inner wire is installed in the cavity, can install smoothly in order to make inner wire, and the dimensional accuracy when 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.
Purpose of the present invention is achieved through the following technical solutions: cavity body filter rapid welding technique, and it may further comprise the steps:
The part that upper surface and the lid of S1, cleaning cavity contacts with the cavity upper surface;
The surface-coated scolder of S2, the part that contacts with the cavity upper surface at lid;
S3, the lid that will apply scolder are buckled on the cavity, and locking;
S4, the cavity after will locking and lid are put into the high frequency induction welding coil that picks, and plugged, the high frequency induction welding output current that picks produces heat, and the welding of lid and cavity is finished in heating.
Locking operation among the described step S3 is for adopting anchor clamps that lid is pressed on the cavity.
Thickness 1～the 2mm of the part that the thickness of the part that described lid contacts with the cavity upper surface contacts with the cavity upper surface less than lid.
The wall thickness of described cavity is 1～3mm.
The present invention has the following advantages: the present invention adopts rapid welding technique to finish 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 at the screw of cavity and lid setting and screw fit, further not reduce processing cost and process time; Do not need to arrange screw on the cavity wall of the present invention, 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 cavity wall thickness reduce just to have increased accordingly space in the cavity, the dimensional accuracy when therefore having reduced greatly compared to existing technology the cavity casting has reduced processing cost equally.
Embodiment
Below the present invention will be further described, protection scope of the present invention is not limited to the following stated:
Cavity body filter rapid welding technique, it may further comprise the steps:
The upper surface of S1, cleaning cavity and the part that lid contacts with the cavity upper surface are removed greasy dirt and oxide skin;
The surface-coated scolder of S2, the part that contacts with the cavity upper surface at lid;
S3, the lid that will apply scolder are buckled on the cavity, and locking;
S4, the cavity after will locking and lid are put into the high frequency induction welding coil that picks, and plugged, the high frequency induction welding output current that picks produces heat, and the welding of lid and cavity is finished in heating.
Locking operation among the described step S3 is for adopting anchor clamps that lid is pressed on the cavity.
Thickness 1～the 2mm of the part that the thickness of the part that described lid contacts with the cavity upper surface contacts with the cavity upper surface less than lid, namely before carrying out step S1, the surface of the part that lid is contacted with the cavity upper surface processes, the surface of the part that the surface that makes this part contacts with the cavity upper surface than lid is for being the groove of 1～2mm highly, before the welding, scolder is arranged in the groove.
The wall thickness of described cavity is 1～3mm.
Invention uses 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 (4)
1. cavity body filter rapid welding technique, it is characterized in that: it may further comprise the steps:
The part that upper surface and the lid of S1, cleaning cavity contacts with the cavity upper surface;
The surface-coated scolder of S2, the part that contacts with the cavity upper surface at lid;
S3, the lid that will apply scolder are buckled on the cavity, and locking;
S4, the cavity after will locking and lid are put into the high frequency induction welding coil that picks, and plugged, the high frequency induction welding output current that picks produces heat, and the welding of lid and cavity is finished in heating.
2. cavity body filter rapid welding technique according to claim 1 is characterized in that: the locking operation among the described step S3 is for adopting anchor clamps that lid is pressed on the cavity.
3. cavity body filter rapid welding technique according to claim 1 is characterized in that: the thickness 1～2mm of the part that the thickness of the part that described lid contacts with the cavity upper surface contacts with the cavity upper surface less than lid.
4. cavity body filter rapid welding technique according to claim 1, it is characterized in that: the wall thickness of described cavity is 1～3mm.
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 true CN103050763A (en) | 2013-04-17 |
| CN103050763B CN103050763B (en) | 2016-05-25 |
Family
ID=48063324
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 |
|---|---|
| CN (1) | CN103050763B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495574A (en) * | 2013-10-18 | 2014-01-08 | 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 |
| 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 |
| CN202564514U (en) * | 2012-03-22 | 2012-11-28 | 深圳市大富科技股份有限公司 | Adjustable filter |
-
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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495574A (en) * | 2013-10-18 | 2014-01-08 | 宁波泰立电子科技有限公司 | Cavity cleaning device of ion fan of cavity filter |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103050763B (en) | 2016-05-25 |
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