CN2487489Y - Three-phase asynchronous induction electromagnetic pump for molten metal soft hard-soldering - Google Patents
Three-phase asynchronous induction electromagnetic pump for molten metal soft hard-soldering Download PDFInfo
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- CN2487489Y CN2487489Y CN 01246920 CN01246920U CN2487489Y CN 2487489 Y CN2487489 Y CN 2487489Y CN 01246920 CN01246920 CN 01246920 CN 01246920 U CN01246920 U CN 01246920U CN 2487489 Y CN2487489 Y CN 2487489Y
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- electromagnetic pump
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- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The utility model relates to a three-phase asynchronous induction electromagnetic pump for molten metal soft hard-soldering, which is especially applicable to an automatic welding equipment of printing circuit board (PCB); the utility model adopts the proper phase difference of a three-phase power to form an electromagnetic pulling force in a liquid state metal soldering-material which can be driven to act circularly. The utility model consists of a three-phase electromagnetic system, an electromagnetic force functioning zone, a conveying channel, a current stabilizing element, a nozzle, a returning pipe and a soldering-material tank.
Description
The utility model relates to a kind of phase asynchronous induction electromagnetic pump that is applicable to soft brazing with liquid metal, specially refers in the printed circuit board (pcb) automatic welding device the phase asynchronous induction electromagnetic pump of pumping liquid metal soft solder.
The electromagnetic pump of the soft brazing with liquid metal of patent US-3.797.724 and CN8620924U; all belong to conduction pump; the thrust of this pump changes because of the variation of conduction current loop resistance; thereby the instability that causes solder wave; even causing the crest height big rise and big fall, the scheme that addresses this problem at present is that high-temp antioxidizing oil guard system is set.Patent CN93246899.3 and CN91058162A etc. all belong to the single-phase electromagnetic induction pump, and its principle is to utilize electromagnet inner and outer ring magnetic path difference and the phase difference that produces forms induced electricity magnetic force, and this electromagnetic pump has solved conduction pump crest problem of unstable.Its shortcoming is that the impulsive magnetic field ratio is bigger than normal, and electromagnetic push is little, can't obtain high crest and big crest width.
The purpose of this utility model provides a kind of phase asynchronous induction electromagnetic pump of novel pumping liquid metal soft solder, it can not only eliminate fully exist in the SMT soft brazing because the gas shield brazing filler metal district that thermal decomposition produced of the used alite paste of scaling powder and surface element (SMC) and surface device (SMD), cause skip welding and leak the weldering phenomenon, reach the specification requirement of SMT soft brazing, and has an efficient height, regular maintenance is convenient, uses features such as wide for the SMT soft brazing.
The utility model is achieved by the following technical solution: the soft brazing with liquid metal of design is made up of three-phase electromagnetic system (0,1,2), electromagnetic force active region (3,4), soft solder transfer passage (5), current stabilization assembly (6,7), nozzle (7,8,9), return duct (13) and solder bath (12) with phase asynchronous induction electromagnetic pump.Three-phase electromagnetic system (0,1,2) by stripe shape iron core (1),
The excitatory line bag of sections core (2) and three-phase (0A, 0B, 0C) is formed; Electromagnetic force active region (3,4) is made of cavity and the liquid metal in the cavity that ferromagnetism corrosion resistant plate (3) and nonferromagnetic corrosion resistant plate (4) form, strip iron core (1),
Sections core (2), corrosion resistant plate (3,4) liquid metal in cavity and the cavity constitutes the three-phase magnetic loop, be applied to excitatory line bag (0A, 0B, electric current 0C), its phase difference by three phase mains intrinsic (being that three-phase voltage differs 120 ° respectively) change electric current that three excitatory lines wrap around to, can make the three-phase electromagnetic field phase differ 60 ° in the electromagnetic force active region, its resultant magnetic field is exactly a magnetic field of advancing, the liquid metal solder is cutting magnetic line in the magnetic field of advancing, induced current forms the electromagnetic force of advancing, the electric current that changes excitatory line bag just can change the electromagnetic force size of electromagnetic force active region, thereby reaches the purpose of regulating crest height.
The liquid metal solder pumps into transfer passage (5) nozzle of gushing out after via current stabilization assembly (6,7) through electromagnetic force active region (3,4).Whole transfer passage (5) all is welded, this helps the sealing and the transfer efficiency of passage, current stabilization assembly (6,7) constitute by current stabilization orifice plate (6) and slanting baffle (7), whole current stabilization assembly is installed at the top of transfer passage (5), the maintenance during this helps using and the cleaning of oxidizing slag, 2 crest nozzles of single crest nozzle and dual waves are by slanting baffle (7), adjusting plate (8) and following current plate (9) constitutes, assignment of traffic between adjustment plate (8) scalable liquid metal following current and the adverse current is to satisfy the needs of welding automatically, slanting baffle can be divided into scolder springing up to be distinguished and the stationary stream district, with the needs of pcb board welding in the satisfied welding automatically with the separating solder face, following current plate (9) guarantees the following current angle of scolder, to satisfy the requirement at automatic soldering technique angle, splash-back (10) is that the main liquid level that guarantees solder bath (12) is not stirred when scolder flows down, to reduce the oxidation of scolder, return duct (13) is made with stainless steel tube, the manufacture craft that can guarantee solder bath is simple and not yielding, the ejection of 1 crest nozzle (11) is steady random ripple in the dual waves, is in order to satisfy the requirement of SMT automatic soldering technique.1 crest nozzle (11) can be made into various ways such as round, narrow slit and R-joining, to satisfy the requirement of different welding procedures.
Accompanying drawing is the structural representation of the phase asynchronous induction electromagnetic pump of design.Wherein 0A, 0B, 0C are respectively the excitatory line bag of three-phase, and 1 is the stripe shape iron core, and 2 are
The sections core, 3 is the ferromagnetism corrosion resistant plate, and 4 is the nonferromagnetic corrosion resistant plate, and 5 is transfer passage, and 6 is the current stabilization orifice plate, and 7 is slanting baffle, and 8 for adjusting plate, and 9 are the following current plate, and 10 is splash-back, and 11 is 1 crest nozzle, and 12 is solder bath, 13 is return duct.Accompanying drawing 1 is that the phase asynchronous induced electricity magnetic pumping of dual waves front view accompanying drawing 2 is the vertical view of the phase asynchronous induced electricity magnetic pumping of single crest for the cross sectional side view accompanying drawing 3 of the phase asynchronous induced electricity magnetic pumping of dual waves for the cut-away view accompanying drawing 4 of the phase asynchronous induced electricity magnetic pumping of single crest
Accompanying drawing is embodiment, adopts the utility model in the phase asynchronous induction electromagnetic pump crest welder of single/double wave crest series of products, and its no-rotary part simple in structure is non-maintaining, can satisfy the requirement of SMT soft brazing well.
Claims (6)
1. phase asynchronous induction electromagnetic pump of soft brazing with liquid metal, it is made up of three-phase electromagnetic system, electromagnetic force active region, transfer passage, current stabilization assembly, nozzle, return duct and solder bath, it is characterized in that:
The motive power zone of a, three-phase electromagnetic system (0,1,2) and the phase asynchronous induction electromagnetic pump of electromagnetic force active region (3,4) formation;
B, transfer passage (5), current stabilization assembly (6,7) and nozzle (7,8,9) constitute the conveyor zones of scolder;
C, return duct (13) and solder bath (12) constitute the recirculation zone of scolder.
2. according to the phase asynchronous induction electromagnetic pump of the described a kind of soft brazing with liquid metal of claim 1., it is characterized in that: three-phase electromagnetic system (0,1,2) be by strip iron core (1),
Sections core (2) and excitatory line bag (0) are formed, wherein strip iron core (1) and
Shape iron core (2) constitutes the three-phase magnetic loop, and its phase difference of electric current that is applied on the excitatory line bag (0) is three phase mains intrinsic (three-phase differs 120 ° respectively).
3. according to the phase asynchronous induction electromagnetic pump of the described a kind of soft brazing with liquid metal of claim 1., it is characterized in that: electromagnetic force active region (3,4) are made of cavity and the middle liquid metal of cavity that two corrosion resistant plates form, wherein the corrosion resistant plate (3) that contacts with stripe shape iron core (1) is the ferromagnetism stainless steel material, with
The corrosion resistant plate (4) of sections core (2) contact is the nonferromagnetic stainless steel material.
4. according to the phase asynchronous induction electromagnetic pump of the described a kind of soft brazing with liquid metal of claim 1., it is characterized in that: whole transfer passage (5) is welded, and this helps the sealing and the transfer efficiency of passage.
5. according to the phase asynchronous induction electromagnetic pump of the described a kind of soft brazing with liquid metal of claim 1., it is characterized in that: current stabilization assembly (6,7) is made of current stabilization orifice plate (6) and slanting baffle (7), whole current stabilization assembly is installed at the transfer passage top, maintenance and cleaning during this is easy to use.
6. according to the phase asynchronous induction electromagnetic pump of the described a kind of soft brazing with liquid metal of claim 1., it is characterized in that: nozzle is divided into single wave soldering equipment nozzle and dual waves welding equipment nozzle, single crest equipment nozzle constitutes by adjusting plate (8), slanting baffle (7) and following current plate (9), adjust the following current of plate (8) scalable liquid metal and the assignment of traffic between the adverse current, slanting baffle (7) can be divided into scolder springing up to be distinguished and the stationary stream district; Dual waves equipment nozzle is made of 1 crest nozzle and 2 crest nozzles.2 crest nozzles are with single ripple nozzle, and 1 crest nozzle can be made various ways such as round, narrow slit and R-joining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246920 CN2487489Y (en) | 2001-08-14 | 2001-08-14 | Three-phase asynchronous induction electromagnetic pump for molten metal soft hard-soldering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246920 CN2487489Y (en) | 2001-08-14 | 2001-08-14 | Three-phase asynchronous induction electromagnetic pump for molten metal soft hard-soldering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2487489Y true CN2487489Y (en) | 2002-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01246920 Expired - Fee Related CN2487489Y (en) | 2001-08-14 | 2001-08-14 | Three-phase asynchronous induction electromagnetic pump for molten metal soft hard-soldering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2487489Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101160193B (en) * | 2005-03-18 | 2010-05-19 | 千住金属工业株式会社 | Jet solder vessel |
| CN102485407A (en) * | 2010-12-02 | 2012-06-06 | 西安中科麦特电子技术设备有限公司 | Low-capacity electromagnetic pump wave crest generator |
-
2001
- 2001-08-14 CN CN 01246920 patent/CN2487489Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101160193B (en) * | 2005-03-18 | 2010-05-19 | 千住金属工业株式会社 | Jet solder vessel |
| CN102485407A (en) * | 2010-12-02 | 2012-06-06 | 西安中科麦特电子技术设备有限公司 | Low-capacity electromagnetic pump wave crest generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020424 Termination date: 20090914 |