CN214815535U - Brazing filler metal pumping mechanism for wave-soldering - Google Patents
Brazing filler metal pumping mechanism for wave-soldering Download PDFInfo
- Publication number
- CN214815535U CN214815535U CN202121369200.6U CN202121369200U CN214815535U CN 214815535 U CN214815535 U CN 214815535U CN 202121369200 U CN202121369200 U CN 202121369200U CN 214815535 U CN214815535 U CN 214815535U
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- CN
- China
- Prior art keywords
- plate
- filler metal
- brazing filler
- filter plate
- groove
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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.)
- Expired - Fee Related
Links
- 238000005219 brazing Methods 0.000 title claims abstract description 46
- 239000000945 filler Substances 0.000 title claims abstract description 45
- 239000002184 metal Substances 0.000 title claims abstract description 45
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 45
- 238000005476 soldering Methods 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 title claims abstract description 15
- 238000005086 pumping Methods 0.000 title claims abstract description 15
- 239000011261 inert gas Substances 0.000 claims abstract description 9
- 230000007704 transition Effects 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 229910000679 solder Inorganic materials 0.000 claims description 18
- 238000009826 distribution Methods 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 17
- 230000007547 defect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000005457 optimization Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Molten Solder (AREA)
Abstract
The utility model discloses a brazing filler metal pumping mechanism for wave-soldering relates to wave-soldering technical field, this brazing filler metal pumping mechanism for wave-soldering, including drill rod groove, mixing flow chamber, nozzle combination, pump ditch, electromagnetic pump, heating system and inert gas conveyer pipe, outer chamber and inner chamber are separated into by the mixing flow chamber to the drill rod groove, mixing flow chamber both sides are close to bottom position department and are provided with transition passageway, and the outer chamber communicates with each other through transition passageway and inner chamber, the nozzle combination includes pan feeding mouth, discharge opening, diaphragm, curb plate, edge board and filter plate, and the curb plate is that the narrow opening that "eight" font distributes and form encloses into the pan feeding mouth with the drill rod groove inner wall, and the curb plate is that the wide mouth that "eight" font distributes and form encloses into the discharge opening with the drill rod groove inner wall. The utility model discloses a set up diaphragm, curb plate, edge board, filter plate and backward flow groove, filter impurity and intercept in the filter plate top by the filter plate for the borer ripples impurity content that flows back to the borer silo filters the reduction gradually, has strengthened the management of borer silo, guarantees to braze qualitatively good.
Description
Technical Field
The utility model relates to a wave-soldering technical field specifically is a brazing filler metal pumping mechanism for wave-soldering.
Background
Wave soldering is a process of realizing welding point welding by enabling molten solder to continuously and vertically flow upwards under the action of a solder pump to form wave peaks in specific shapes, enabling solder waves to act on a printed circuit board at a certain speed and pressure and fully penetrate between a lead of a device to be soldered and the circuit board, enabling the device to be soldered to be completely wetted and spread and soldering to be carried out, and along with continuous progress of the technology, problems are also caused.
The defects that probably appear in wave soldering mainly have solder joint defect, component defect and PCB defect, in the wave soldering process, brazing filler metal purity variation, the solderability variation of base plate, the impurity of solder can lead to welding defect to increase, there are metallic impurity such as copper, tin dross in the brazing filler metal silo generally, wherein draw the point, the bridging, the solder joint is dull and black and there is granular outstanding solder joint defect phenomenon common among the wave soldering on solder joint surface, and all be related to impurity content in the brazing filler metal is too high, impurity is shoved out by the pump suction repeatedly in the brazing filler metal, is drawn into in the brazing filler metal ripples, and makes solder joint surface defect.
In order to obtain good brazing quality, impurities in a brazing filler metal groove need to be treated, and the weldability can be ensured only by ensuring that the content of the impurities in gushed brazing filler metal waves is reduced, so that the brazing filler metal pumping mechanism for wave soldering is provided.
Disclosure of Invention
Technical problem to be solved
Not enough to prior art, the utility model provides a brazing filler metal pumping mechanism for wave-soldering has solved the too high of brazing filler metal inslot impurity content, leads to solder joint surface defect's problem.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a brazing filler metal pumping mechanism for wave-soldering comprises a brazing filler metal groove, a mixed flow cavity, a nozzle combination, a pump ditch, an electromagnetic pump, a heating system and an inert gas conveying pipe, wherein the brazing filler metal groove is divided into an outer cavity and an inner cavity by the mixed flow cavity, transition channels are arranged at positions, close to the bottom, of two sides of the mixed flow cavity, the outer cavity is communicated with the inner cavity through the transition channels, the nozzle combination comprises a feeding hole, a discharge hole, a transverse plate, a side plate, an edge plate and a filter plate, the narrow opening formed by the inverted splayed distribution of the side plate and the inner wall of the brazing filler metal groove enclose the feeding hole, the wide opening formed by the inverted splayed distribution of the side plate and the inner wall of the brazing filler metal groove enclose the discharge hole, one side of the transverse plate is connected with the inner wall of the brazing filler metal groove, the tail of the side plate is connected with the other side of the transverse plate, the top of the side plate is connected with the top of the edge plate, the tail of the filter plate is connected with the tail of the filter plate, and the head of the brazing filler metal groove is connected with the inner wall of the side plate, the edge plate and the tail part of the filter plate extend to the transverse plate, and a backflow groove is formed in one side, close to the filter plate, of the surface of the transverse plate.
Preferably, the transverse plate, the side plate, the edge plate and the filter plate are integrally formed plates.
Preferably, the filter pores on the surface of the filter plate consist of honeycomb pores and a mesh surface arranged inside the honeycomb pores.
Preferably, the nozzle assembly is connected to the top of the mixed flow cavity through a transverse plate and communicated with the mixed flow cavity through a feeding port.
Preferably, the inert gas conveying pipe comprises a straight pipe and a horizontal pipe, the top of the straight pipe extends towards two sides separately to form two groups of horizontal pipes, the horizontal pipes extend to the lower side of the backflow groove, a plurality of exhaust nozzles are arranged on the surface of each horizontal pipe at equal intervals along the length extending direction of the backflow groove, and the exhaust nozzles exhaust upwards towards the backflow groove.
(III) advantageous effects
The utility model provides a brazing filler metal pumping mechanism for wave-soldering possesses following beneficial effect:
the utility model discloses a set up the diaphragm, the curb plate, along the board, filter plate and backward flow groove, utilize the curb plate and follow the direction of gushing out of board to the borer ripples, the borer ripples of gushing out flows back to the borer silo from the backward flow groove again through the filter, impurity in the borer ripples of gushing out along borer ripples gush out direction blanking to filter plate surface, filter impurity and interception in the filter plate top by the filter plate, make the borer ripples impurity content of flowing back to the borer silo filter gradually reduce, and impurity on the filter plate is convenient clean, can regularly clear up the impurity on filter plate surface, the management of borer silo has been strengthened, the purity of brazing filler metal has been guaranteed, guarantee to braze of high quality.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a left sectional view of the present invention;
fig. 3 is a top view of the present invention;
fig. 4 is a schematic view of the structure of the inert gas delivery pipe of the present invention.
In the figure: 1. a brazing filler metal groove; 101. an outer cavity; 102. an inner cavity; 2. a mixing chamber; 201. a transition passage; 3. combining a nozzle; 301. a feeding port; 302. an overflow port; 303. a transverse plate; 304. a side plate; 305. a rim plate; 306. filtering the plate; 3061. a reflux tank; 4. a pump channel; 5. an electromagnetic pump; 6. a heating system; 7. an inert gas delivery pipe; 701. a straight pipe; 702. a transverse tube; 703. an exhaust nozzle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-4, the utility model provides a technical solution: a wave soldering brazing filler metal pumping mechanism comprises a brazing filler metal groove 1, a mixed flow cavity 2, a nozzle assembly 3, a pump ditch 4, an electromagnetic pump 5, a heating system 6 and an inert gas conveying pipe 7, wherein the brazing filler metal groove 1 is divided into an outer cavity 101 and an inner cavity 102 by the mixed flow cavity 2, transition channels 201 are arranged at positions, close to the bottom, of two sides of the mixed flow cavity 2, the outer cavity 101 is communicated with the inner cavity 102 through the transition channels 201, the nozzle assembly 3 comprises a feeding port 301, a discharge hole 302, a transverse plate 303, side plates 304, an edge plate 305 and a filter plate 306, narrow ports formed by the inverted splayed distribution of the side plates 304 and the inner wall of the brazing filler metal groove 1 form the feeding port 301, wide ports formed by the inverted splayed distribution of the side plates 304 and the inner wall of the brazing filler metal groove 1 form the discharge hole 302, molten brazing filler metal enters the nozzle assembly 3 along the feeding port 301 and flows upwards, and brazing filler metal waves in a specific shape are formed at the discharge hole 302, one side of the transverse plate 303 is connected with the inner wall of the brazing filler metal groove 1, the tail part of the side plate 304 is connected with the other side of the transverse plate 303, the top part of the side plate 304 is connected with the top part of the edge plate 305, the tail part of the edge plate 305 is connected with the tail part of the filter plate 306, the head part of the filter plate 306 is connected with the inner wall of the brazing filler metal groove 1, the edge plate 305 and the tail part of the filter plate 306 both extend to the transverse plate 303, a backflow groove 3061 is formed in one side, close to the filter plate 306, of the surface of the transverse plate 303, impurities in gushed brazing filler metal waves fall onto the surface of the filter plate 306 along the gushing direction of the brazing filler metal waves, the impurities are filtered and intercepted above the filter plate 306 by the filter plate 306, and the brazing filler metal waves flow back to the brazing filler metal groove 1 from the backflow groove 3061.
As a technical optimization scheme of the utility model, diaphragm 303, curb plate 304, edge board 305 and filter plate 306 are integrated into one piece's panel.
As a technical optimization scheme of the utility model, the strainer hole on filter plate 306 surface comprises honeycomb holes and the inside wire side that sets up of honeycomb holes, through the impurity in the wire side filter solder.
As a technical optimization scheme of the utility model, nozzle combination 3 is connected at mixed flow chamber 2 top through diaphragm 303 to communicate with each other through pan feeding mouth 301 and mixed flow chamber 2.
As the utility model discloses a technical optimization scheme, inert gas conveyer pipe 7 includes straight tube 701 and violently manages 702, the straight tube 701 top is separately extended to both sides and is formed two sets of violently pipes 702, and violently manage 702 and extend to backward flow groove 3061 below, violently manage 702 surface along backward flow groove 3061 length extending direction equidistant a plurality of nozzles 703, and the nozzle 703 exhausts to backward flow groove 3061 direction up, not only protected the molten solder in the drill pipe groove 1 not by the oxidation, hot nitrogen gas flows still can upwards outflow in backward flow groove 3061 department along the even distribution of nozzle 703 simultaneously, the molten solder protection of backward flow groove 3061 department, avoid being by the oxidized solder, welding quality has been improved.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a brazing filler metal pumping mechanism for wave-soldering, includes brazing filler metal groove (1), mixed flow chamber (2), nozzle combination (3), pump ditch (4), electromagnetic pump (5), heating system (6) and inert gas conveyer pipe (7), brazing filler metal groove (1) is separated into exocoel (101) and inner chamber (102) by mixed flow chamber (2), mixed flow chamber (2) both sides are close to bottom position department and are provided with transition passageway (201), and exocoel (101) communicate with each other through transition passageway (201) and inner chamber (102), its characterized in that: the nozzle combination (3) comprises a feeding port (301), a flash port (302), a transverse plate (303), a side plate (304), a border plate (305) and a filter plate (306), the narrow opening formed by the side plates (304) in inverted splayed distribution and the inner wall of the brazing filler metal groove (1) enclose a feeding opening (301), the wide opening formed by the side plates (304) in inverted splayed distribution and the inner wall of the brazing filler metal groove (1) enclose a material overflow opening (302), one side of the transverse plate (303) is connected with the inner wall of the brazing filler metal groove (1), the tail part of the side plate (304) is connected with the other side of the transverse plate (303), the top of the side plate (304) is connected with the top of the edge plate (305), the tail of the edge plate (305) is connected with the tail of the filter plate (306), the head part of the filter plate (306) is connected with the inner wall of the brazing filler metal groove (1), the edge plate (305) and the tail part of the filter plate (306) both extend to the transverse plate (303), and a reflux groove (3061) is arranged on one side of the surface of the transverse plate (303) close to the filter plate (306).
2. A solder pumping mechanism for wave soldering according to claim 1, wherein: the transverse plate (303), the side plate (304), the edge plate (305) and the filter plate (306) are integrally formed plates.
3. A solder pumping mechanism for wave soldering according to claim 1, wherein: the filter pores on the surface of the filter plate (306) are composed of honeycomb pores and a mesh surface arranged in the honeycomb pores.
4. A solder pumping mechanism for wave soldering according to claim 1, wherein: the nozzle assembly (3) is connected to the top of the mixed flow cavity (2) through a transverse plate (303) and is communicated with the mixed flow cavity (2) through a feeding port (301).
5. A solder pumping mechanism for wave soldering according to claim 1, wherein: the inert gas conveying pipe (7) comprises a straight pipe (701) and a transverse pipe (702), the top of the straight pipe (701) extends towards two sides separately to form two groups of transverse pipes (702), the transverse pipes (702) extend to the lower side of the reflux groove (3061), a plurality of exhaust nozzles (703) are arranged on the surface of each transverse pipe (702) at equal intervals along the length extending direction of the reflux groove (3061), and the exhaust nozzles (703) exhaust upwards towards the direction of the reflux groove (3061).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121369200.6U CN214815535U (en) | 2021-06-21 | 2021-06-21 | Brazing filler metal pumping mechanism for wave-soldering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121369200.6U CN214815535U (en) | 2021-06-21 | 2021-06-21 | Brazing filler metal pumping mechanism for wave-soldering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214815535U true CN214815535U (en) | 2021-11-23 |
Family
ID=78806930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121369200.6U Expired - Fee Related CN214815535U (en) | 2021-06-21 | 2021-06-21 | Brazing filler metal pumping mechanism for wave-soldering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214815535U (en) |
-
2021
- 2021-06-21 CN CN202121369200.6U patent/CN214815535U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |