CN220407374U - Dust filtering device of reflow oven for PCB circuit board production - Google Patents
Dust filtering device of reflow oven for PCB circuit board production Download PDFInfo
- Publication number
- CN220407374U CN220407374U CN202321876666.4U CN202321876666U CN220407374U CN 220407374 U CN220407374 U CN 220407374U CN 202321876666 U CN202321876666 U CN 202321876666U CN 220407374 U CN220407374 U CN 220407374U
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- box
- dust
- fan
- circuit board
- filter plate
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- 239000000428 dust Substances 0.000 title claims abstract description 83
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 238000001914 filtration Methods 0.000 title abstract description 8
- 238000001179 sorption measurement Methods 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 238000004140 cleaning Methods 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 19
- 239000002912 waste gas Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000007921 spray Substances 0.000 description 6
- 241000143432 Daldinia concentrica Species 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a dust filtering device of a reflow oven for producing PCB (printed Circuit Board) circuit boards, which comprises a furnace body, a filter plate and an adsorption box, wherein a dust collecting box is connected with a discharge outlet of the furnace body, a fan is arranged on the upper surface of the dust collecting box, a guide pipe is arranged in the dust collecting box, the filter plate is arranged in the dust collecting box and positioned below an air inlet of the fan, a brush strip is inserted into the center of the filter plate, a motor is arranged at the upper end of the brush strip, the motor is connected in the fan, exhaust gas discharged by the furnace body is extracted through the fan, dust in the exhaust gas is blocked by the filter plate and stopped in the dust collecting box, the guide pipe can block accumulated dust at the edge of the bottom of the box body, the exhaust gas is not influenced by the fan, the rotation of the brush strip is controlled by the motor, dust attached to the filter plate can be cleaned, the good ventilation capacity of the filter plate is maintained, and the purification effect of the furnace body can be ensured after long-term use.
Description
Technical Field
The utility model relates to the technical field of reflow ovens, in particular to a dust filtering device of a reflow oven for producing a PCB.
Background
The reflow oven is a device for melting solder paste attached to the PCB by high temperature and then cooling the solder paste, and finally, stably combining the PCB. Reflow ovens produce large amounts of water vapor, toxic gases, and dust during soldering, which are primarily from PCB boards and therefore require handling of the toxic gases and dust.
In the related art, the scheme of the reflow oven (bulletin No. CN 214322110U) with the purification function for PCB processing is found through searching, and the dust filter plate, the active carbon filter screen and the water tank enable harmful gas generated by the reflow oven during PCB processing to be effectively extracted and discharged after being filtered, so that the purpose of purifying the reflow oven is realized.
However, when the dust filter plate is used for filtering, some dust particles can be attached to the dust filter plate, and when dust is accumulated in the purifying box, the lower half part of the dust filter plate can be blocked, so that the ventilation capacity of the whole dust filter plate is reduced, the exhaust emission speed is influenced, and the purifying effect on the reflow oven is reduced after long-term use.
Disclosure of Invention
The utility model aims to provide a dust filtering device of a reflow oven for producing a PCB (printed Circuit Board) so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the dust filtering device of the reflow oven for producing the PCB comprises a furnace body, wherein a dust collection box is connected to a discharge outlet of the furnace body, a fan is arranged on the upper surface of the dust collection box, and a guide pipe is arranged in the dust collection box;
the filter plate is arranged in the dust collection box and below the air inlet of the fan, a brush bar is inserted into the center of the filter plate, a motor is arranged at the upper end of the brush bar, and the motor is connected in the fan;
the adsorption box, adsorption box and fan intercommunication, and adsorption box middle part is equipped with the baffle, be equipped with a plurality of groups bearing box between baffle and the adsorption box, and the bearing box surface is equipped with a plurality of groups gas pocket, the inside active carbon ball of having placed of bearing box.
Further, the lower end of the guide pipe is connected with an exhaust gas discharge pipe, the exhaust gas discharge pipe is connected with a discharge port of the furnace body, and a cleaning valve is arranged on the left side of the lower surface of the dust collection box.
Furthermore, a clamping frame is arranged in the dust box, and the filter plate is clamped in the clamping frame.
Further, the right side of the upper surface of the adsorption box is connected with a conveying pipe, and the conveying pipe is connected with an air outlet of the fan.
Further, the surface of the adsorption box is provided with a cleaning cover, and a hand-screwed bolt in threaded connection with the adsorption box is inserted into the surface of the cleaning cover.
Further, the inner wall of the adsorption box and the surface of the partition plate are provided with supporting bars, and the bearing box is positioned on the upper surface of the supporting bars.
Further, the upper part of the left side surface of the adsorption box is provided with a discharge outlet.
Further, a shielding pore plate is arranged at the left upper corner inside the adsorption box
Compared with the prior art, the utility model has the beneficial effects that:
(1) Through fan extraction furnace body exhaust gas, the dust in the exhaust gas receives the blocking stop of filter to flow in the dust collection box, and the guide pipe can be with piled up dust separation at box bottom edge, can not influence fan extraction exhaust gas, and motor control brush strip rotates can clear up the dust that adheres to on the filter, keeps the good ventilation ability of filter, long-term use can ensure the purifying effect to the furnace body.
(2) The waste gas flows according to the U-shaped path, stays in the adsorption box for a longer time, is adsorbed and purified by the activated carbon balls in the waste gas flowing process, avoids being discharged into the air, prevents environmental pollution, has more gaps between the activated carbon balls, does not excessively influence the flow of the waste gas, and ensures that the fan timely extracts the waste gas in the furnace body.
(3) Can conveniently tear clean lid down through hand screw bolt, take out the bearing box from the adsorption box, can change the active carbon ball, need not to dismantle with the help of the instrument, convenient operation.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a cross-sectional view of the dust bin of the present utility model;
FIG. 3 is a cross-sectional view of the adsorption tank of the present utility model;
FIG. 4 is a schematic view of the structure of the connection of the dust box and the anode plate of the present utility model;
FIG. 5 is a schematic view of the connection of the dust box and the spray head of the present utility model.
In the figure: 1. a furnace body; 2. an exhaust gas discharge pipe; 3. a dust collection box; 5. a blower; 6. a delivery tube; 7. a discharge port; 8. an adsorption box; 9. a cleaning cover; 10. screwing the bolt by hand; 11. a clamping frame; 12. a filter plate; 13. a motor; 14. brushing strips; 15. a guide tube; 16. a partition plate; 18. a support bar; 19. a support box; 20. activated carbon spheres; 21. a shielding orifice plate; 22. a purge valve; 23. an anode plate; 24. a spray head.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one:
referring to fig. 1-3, the present utility model provides a technical solution: the dust filtering device of the reflow oven for producing the PCB circuit board comprises a furnace body 1, wherein a discharge outlet 7 of the furnace body 1 is connected with a dust collection box 3, a fan 5 is arranged on the upper surface of the dust collection box 3, and a guide pipe 15 is arranged in the dust collection box 3;
the filter plate 12 is arranged in the dust collection box 3 and below the air inlet of the fan 5, a brush strip 14 is inserted into the center of the filter plate 12, a motor 13 is arranged at the upper end of the brush strip 14, and the motor 13 is connected in the fan 5;
the number of the filter plates 12 is set according to the size of dust generated by the PCB, and the filter plates 12 with different numbers can be selected;
after the dust is filtered by the filter plate 12, more dust can be prevented from adhering to the fan 5, the brush bar 14 is rotationally connected with the filter plate 12, and a cavity is arranged in the center of the filter plate 12, so that the filter plate 12 is prevented from interfering the rotation of the brush bar 14;
adsorption box 8, adsorption box 8 and fan 5 intercommunication, and adsorption box 8 middle part are equipped with baffle 16 for form the U-shaped passageway in the adsorption box 8, be equipped with a plurality of groups bearing box 19 between baffle 16 and the adsorption box 8, and the bearing box 19 surface is equipped with a plurality of groups gas pocket, the waste gas flow of being convenient for, the inside activated carbon ball 20 of having placed of bearing box 19, in the bearing box 19 was piled up to activated carbon ball 20, there were more gaps before the activated carbon ball 20, the waste gas flow of being convenient for, and adsorb the waste gas.
Specifically, as shown in fig. 1 and fig. 2, the lower end of the guiding pipe 15 is connected with an exhaust gas discharging pipe 2, the exhaust gas discharging pipe 2 is connected with the discharging port 7 of the furnace body 1, a cleaning valve 22 is arranged on the left side of the lower surface of the dust collecting box 3, and dust in the dust collecting box 3 can be discharged by opening the cleaning valve 22.
In this embodiment, as shown in fig. 2, the inside of the dust box 3 is provided with a clamping frame 11, the filter plate 12 is clamped inside the clamping frame 11, and the clamping frame 11 is L-shaped and is matched with the inner wall of the dust box 3 to fix the filter plate 12.
In this embodiment, as shown in fig. 1, a conveying pipe 6 is connected to the right side of the upper surface of the adsorption box 8, the conveying pipe 6 is connected to the air outlet of the blower 5, and the conveying pipe 6 is a flexible pipe that can be bent.
In this embodiment, as shown in fig. 1, the surface of the suction box 8 is provided with a cleaning cover 9, a hand-screwed bolt 10 screwed with the suction box 8 is inserted into the surface of the cleaning cover 9, one end of the hand-screwed bolt 10 is provided with a handle, and the hand-screwed bolt 10 is screwed by using the handle without using a tool such as a wrench.
In this embodiment, as shown in fig. 3, the inner wall of the adsorption box 8 and the surface of the partition plate 16 are provided with supporting bars 18, and the bearing box 19 is located on the upper surface of the supporting bars 18, so that the bearing box 19 is conveniently taken out from the adsorption box 8.
In this embodiment, as shown in fig. 3, an exhaust port 7 is provided at an upper portion of a left side surface of the adsorption tank 8, and the treated exhaust gas is discharged through the exhaust port 7.
In this embodiment, as shown in fig. 3, a shielding hole plate 21 is disposed at the upper left corner of the inside of the adsorption case 8, and the size of the hole on the surface of the shielding hole plate 21 is smaller than that of the activated carbon ball 20, so as to prevent the activated carbon ball 20 from being discharged from the discharge port 7.
Specifically, when in use, the fan 5 rotates to generate suction force, waste gas and dust in the furnace body 1 enter the dust collection box 3 along the waste gas discharge pipe 2 and the guide pipe 15, referring to fig. 2, the dust is blocked by the filter plate 12 and cannot flow continuously to be collected in the dust collection box 3 and falls to the bottom of the dust collection box 3, the dust cannot interfere the flow of the waste gas in the guide pipe 15, the motor 13 drives the brush bar 14 to rotate, the brush bar 14 can remove the dust attached to the filter plate 12, the circulation performance of the filter plate 12 is maintained, and the waste gas can flow rapidly;
when the exhaust gas enters the adsorption box 8, referring to fig. 3, the exhaust gas flows along a U-shaped path, in the flowing process, the exhaust gas passes through the space between the activated carbon balls 20, the activated carbon balls 20 purify the exhaust gas, the U-shaped path enables the exhaust gas to be sufficiently purified, the flowing speed of the exhaust gas can be ensured, and the purified exhaust gas is discharged from the discharge port 7.
Embodiment two:
referring to fig. 4, unlike the first embodiment, the anode plates 23 are disposed in a ring shape in the dust box 3, and a high voltage electric field is generated after the anode plates 23 are connected with high voltage direct current, so that dust moves to the anode plates under the action of the electric field, and the dust is adsorbed, so that a part of dust can be adsorbed, and the dust is prevented from blocking the filter plate 12.
Embodiment III:
referring to fig. 5, in this embodiment, a component is provided to replace the anode plate 23, a spray nozzle 24 is disposed in the dust collection box 3, the spray nozzle 24 is connected with a water pump, the water pump pressurizes water and then sends the water into the spray nozzle 24, the water is atomized under the action of the spray nozzle 24, the humidity in the dust collection box 3 is improved, and the dust is mixed together after encountering the water mist, so that the weight of the dust can be increased, the dust falls to the bottom of the dust collection box 3, and the dust amount on the surface of the filter plate 12 can be reduced.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A PCB circuit board production reflow oven dust filter equipment, its characterized in that includes:
the device comprises a furnace body (1), wherein a dust collection box (3) is connected to a discharge outlet (7) of the furnace body (1), a fan (5) is arranged on the upper surface of the dust collection box (3), and a guide pipe (15) is arranged in the dust collection box (3);
the filter plate (12), the filter plate (12) is arranged in the dust collection box (3) and is positioned below the air inlet of the fan (5), a brush strip (14) is inserted into the center of the filter plate (12), a motor (13) is arranged at the upper end of the brush strip (14), and the motor (13) is connected in the fan (5);
adsorption box (8), adsorption box (8) and fan (5) intercommunication, and adsorption box (8) middle part is equipped with baffle (16), be equipped with a plurality of groups bearing box (19) between baffle (16) and adsorption box (8), and bearing box (19) surface is equipped with a plurality of groups gas pocket, active carbon ball (20) have been placed to bearing box (19) inside.
2. The dust filter device of a reflow oven for producing a PCB circuit board according to claim 1, wherein: the lower end of the guide pipe (15) is connected with an exhaust gas discharge pipe (2), the exhaust gas discharge pipe (2) is connected with a discharge outlet (7) of the furnace body (1), and a cleaning valve (22) is arranged on the left side of the lower surface of the dust collection box (3).
3. The dust filter device of a reflow oven for producing a PCB circuit board according to claim 2, wherein: the dust collection box (3) is internally provided with a clamping frame (11), and the filter plate (12) is clamped in the clamping frame (11).
4. The dust filter device of a reflow oven for producing a PCB circuit board according to claim 1, wherein: the right side of the upper surface of the adsorption box (8) is connected with a conveying pipe (6), and the conveying pipe (6) is connected with an air outlet of the fan (5).
5. The dust filter device of a reflow oven for producing a PCB circuit board according to claim 1, wherein: the surface of the adsorption box (8) is provided with a cleaning cover (9), and a hand-screwed bolt (10) in threaded connection with the adsorption box (8) is inserted into the surface of the cleaning cover (9).
6. The dust filter device of a reflow oven for producing a PCB circuit board according to claim 1, wherein: the inner wall of the adsorption box (8) and the surface of the partition plate (16) are both provided with supporting bars (18), and the bearing box (19) is positioned on the upper surface of the supporting bars (18).
7. The dust filter device of a reflow oven for producing a PCB circuit board according to claim 1, wherein: the upper part of the left side surface of the adsorption box (8) is provided with a discharge outlet (7).
8. The dust filter device of a reflow oven for producing a PCB circuit board according to claim 1, wherein: the left upper corner of the inside of the adsorption box (8) is provided with a shielding pore plate (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321876666.4U CN220407374U (en) | 2023-07-17 | 2023-07-17 | Dust filtering device of reflow oven for PCB circuit board production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321876666.4U CN220407374U (en) | 2023-07-17 | 2023-07-17 | Dust filtering device of reflow oven for PCB circuit board production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220407374U true CN220407374U (en) | 2024-01-30 |
Family
ID=89642580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321876666.4U Active CN220407374U (en) | 2023-07-17 | 2023-07-17 | Dust filtering device of reflow oven for PCB circuit board production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220407374U (en) |
-
2023
- 2023-07-17 CN CN202321876666.4U patent/CN220407374U/en active Active
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