CN108161163A - Welding circuit board cooling means - Google Patents
Welding circuit board cooling means Download PDFInfo
- Publication number
- CN108161163A CN108161163A CN201711317791.0A CN201711317791A CN108161163A CN 108161163 A CN108161163 A CN 108161163A CN 201711317791 A CN201711317791 A CN 201711317791A CN 108161163 A CN108161163 A CN 108161163A
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- CN
- China
- Prior art keywords
- wind
- circuit board
- water
- wind bucket
- air
- Prior art date
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/085—Cooling, heat sink or heat shielding means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention relates to board production fields, specifically disclose welding circuit board cooling means, and circuit board is cooled down using cooling device, and cooling device includes rack, water tank and cooling body, and water tank is equipped with water inlet；Cooling body includes wind turbine, wind bucket, drying layer and baffle, and wind bucket is equipped with closed detection mouth, and air inlet bottom of the barrel is equipped with air intake passage, and water inlet pipe is fixed on water tank, and water inlet pipe is equipped with water inlet switch；Baffle is equipped with opening tool and air intake assembly, and opening tool includes shaft and scraper plate, and scraper plate side is fixed with magnet, motor is fixed on wind bucket；Air intake assembly includes air blasting passage, piston and tension spring, and piston can be attracted by magnet；Cooling step includes：(1) prepare；(2) it cools down；(3) it commutates；(4) it replaces.This programme can cool down circuit board.
Description
Technical field
The present invention relates to board production field more particularly to circuit board cooling fields.
Background technology
A large amount of electric elements can be concentrated in together and provide electrical connection for them by circuit board also known as printed wiring board,
It is essential part in electronic component.During board production, need electric elements welding on circuit boards.During welding,
First circuit board is placed on the table, then welding rod is melted with electric iron, the welding rod of fusing is fallen on the welding surface of circuit board
And solidify, the welding rod of solidification can fix electric elements on circuit boards.But the welding rod of fusing meeting when falling on circuit board
Circuit board temperature is increased, easily scorches the electric elements on circuit board and circuit board, so being also needed to after welding to circuit board
Cool down.
Generally cooled down at present with wind to circuit board, the welding rod for making to fall on the fusing on circuit board is quickly cooled down, and is avoided
Circuit board and electric elements damage.But dust is mixed in the air in workshop, dust when air is blown on circuit board
It can fall on the welding rod of fusing, make circuit board short-circuit when in use, reduce the service life of circuit board.
Invention content
The purpose of the present invention is to provide the circuit board cooling means cooled down after a kind of welding to circuit board.
In order to achieve the above objectives, the technical scheme is that：Welding circuit board cooling means, using cooling device to electricity
Road plate is cooled down, and cooling device, which includes rack, water tank and two cooling bodies for being located at workbench both ends respectively, water tank, to be fixed
In rack, water tank is equipped with closed water inlet；Cooling body includes the wind turbine, wind bucket, fixation being fixed in rack
Drying layer and baffle in wind bucket, drying layer are detachably connected with wind bucket inner wall, and baffle is fixed in wind bucket, air inlet
For bucket opening towards workbench, wind bucket is equipped with closed detection mouth, and air inlet bottom of the barrel is equipped with air intake passage, wind turbine and air inlet
Channel connects, and the water inlet pipe that one end is connected with air intake passage side wall is fixed on water tank, water inlet pipe, which is equipped with, can close water inlet pipe
Water inlet switch；Baffle is located between air inlet bottom of the barrel and drying layer, and baffle is equipped with opening tool and several air intake assemblies, opens
Part includes shaft and is fixed in shaft and is parallel to the scraper plate of baffle, and scraper plate is L-shaped, and scraper plate side is fixed with magnet, into
Be fixed on wind bucket can drive shaft rotation motor；Air intake assembly include through baffle air blasting passage, can be along air blasting passage
The piston of slip and both ends are separately fixed at piston and the tension spring on drying layer, and piston can be attracted by magnet；
Cooling step includes：
(1) prepare, open water inlet, add water to water tank, and make the liquid level of water in water tank than water inlet pipe close to water tank one
High 1~5cm is held, turns off water inlet；
(2) it cools down, opens motor and wind turbine on the wind bucket of side, and make electric iron far from workbench；On the table
Circuit board temperature when being reduced to 15~30 DEG C, close motor and wind turbine, and circuit board is removed from workbench；
(3) it commutates, when accumulative usage time reaches 15~20min, closes 7~10min after water inlet switch, humidity is examined
Probing head is stretched into from detection mouth in wind bucket, when the relative humidity for entering the wind barrel cavity reaches 40~55%, closes the crosswind machine,
Open the motor and wind turbine of opposite side；
(4) it replaces, constantly repeatedly step (3), measures the humidity of the wind once blown out from wind bucket opening per hour,
When relative humidity reaches 5~10%, drying layer is replaced.
Circuit board is placed on workbench and is welded, when step (2) cools down circuit board, open motor and
After wind turbine, wind turbine makes extraneous air enter in wind bucket from air intake passage, the pressure increase in wind bucket.Motor-driven rotatable shaft
Rotation, scraper plate rotates therewith, and the side that scraper plate is made to be fixed with magnet first passes through air intake assembly.Scraper plate is fixed with magnet side elder generation
By air blasting passage, when scraper plate is close to air blasting passage, piston starts along air blasting passage under magneticaction to air inlet bottom of the barrel
Movement；When scraper plate fixed magnet side just moves to air blasting passage end, scraper plate causes to hinder to skidding off for piston；Scraper plate
When air blasting passage end is crossed in fixed magnet side, piston continues on air blasting passage under magneticaction and is slided to air inlet bottom of the barrel
It is dynamic, it is finally skidded off from air blasting passage, air blasting passage is opened at this time, and the air in wind bucket is flowed out from air blasting passage.Scraper plate is fixed
When the side for having magnet is continued far from air blasting passage, piston is drawn under the action of tension spring in air blasting passage, is reclosed and is blown
Wind channel.
In the process, the wind that wind bucket opening is blowed to from air inlet bottom of the barrel is formed in wind bucket, it is logical that air flows through air inlet
During road, according to Bernoulli effect, the water in water tank is inhaled into from water inlet pipe in air intake passage, enters wind bucket then as air
It is interior.Dust and the water of sucking are mixed in air, then is contacted together with baffle, water forms droplet in baffle surface, and dust adsorption exists
Droplet surface, the dust in air are eliminated, and droplet contacts in air flow process with baffle, and is attached to baffle
On.When scraper plate rotates, the interior droplet for having dust is scraped, finally when scraper plate moves to baffle lower part, water is under the effect of gravity
Wind bucket lower part is flowed to along scraper plate and baffle.When the air of outflow passes through drying layer, air is dried, and last wind is from wind bucket
Opening blows to the wind bucket of the circuit board and opposite side on workbench.
After step (3) closes the crosswind machine, opening opposite side motor and wind turbine, the opening formation of another wind bucket is blown
To the wind of workbench, circuit board is cooled down.And it since another wind bucket is located at workbench opposite side, is blown from another wind bucket
In wind bucket before the wind entrance gone out, and the motor in wind bucket before is not turned off, so the blowing on the wind bucket is led to
Road is still opened, therefore the wind bucket before being passed through from the wind that another wind bucket is blown into, and is then blown out from air intake passage, to before
Wind bucket is dried.
This programme has the beneficial effect that：(1) when step (3) cools down, the air of dust is mixed with when flowing through air intake passage
It can spray the water in water tank, air, which enters in wind bucket, to be continued to flow, and the air for being finally mixed with dust and droplet connects with baffle
When touching, droplet is attached on baffle, is entered in droplet when dust is contacted with droplet, so in eventually passing through the air of air blasting passage
Dust greatly reduces, and avoids circuit board short-circuit when using.
(2) in cooling procedure, scraper plate rotation can scrape off the droplet being attached on baffle, avoid air from air blasting passage
Across when make droplet also pass through air blasting passage, can dust be effectively isolated in baffle far from wind bucket side, further avoided
Dust and circuit board contacts.
(3) magnet makes piston be slided along air blasting passage, and piston can be skidded off out of air blasting passage, gradual in piston
During close to air inlet bottom of the barrel, piston can be such that the water being attached on air blasting passage side wall is flowed out out of air blasting passage, avoid a large amount of
Water contacted with drying layer, extend the service life of drying layer.
(4) drying layer can stop dust remaining in air, further avoid dust and circuit board contacts.
(5) in step (3), wind that when another wind bucket use blows out enter before wind bucket in, can be to before
Wind bucket be dried, reduce the humidity in the wind bucket.
Preferred embodiment one, is further improved as to base case, and wind bucket lower part is equipped with closed water outlet；Step
Suddenly (two) open water outlet every 5~10min, and water outlet is closed after 1~2min.The water that scraper plate scrapes is discharged from water outlet, is kept away
Exempt from water to remain in wind bucket, water is then avoided to mix and flows through air blasting passage in air.
Preferred embodiment two, as being further improved to preferred embodiment one, drying layer includes two layers can with wind bucket inner wall
The filter screen of dismantling connection and the drier between filter screen；Step (4) only replaces drier when replacing drying layer.No
Filter screen is needed replacing, reduces cost.
Preferred embodiment three, as being further improved to preferred embodiment two, while step (1) adds in water into water tank
Add in ice cube.Ice cube can reduce the temperature of water, and water can also reduce the temperature of air, make air to circuit after being mixed into air
The cooling effect of plate is more preferable.
Preferred embodiment four, as being further improved to preferred embodiment three, before step (3) measures the humidity in wind bucket,
First open 1~2min of water outlet.After opening water outlet, remaining liquid water is discharged from water outlet in wind bucket, avoids liquid water
Measurement result is impacted.
Description of the drawings
Fig. 1 is the structure diagram of welding circuit board cooling means embodiment of the present invention；
Fig. 2 is the left view of Fig. 1.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments：
Reference numeral is：Wind bucket 1, wind turbine 11, water tank 12, motor 13, water outlet 14, air intake passage 15, detection mouth 16,
Water inlet 17, water inlet switch 18, workbench 2, shaft 3, scraper plate 31, magnet 32, baffle 4, air blasting passage 41, piston 42, iron block
43rd, tension spring 44, Wiper blade 45, drying layer 5.
As shown in Figure 1 and Figure 2, welding circuit board cooling means cools down circuit board using cooling device, cooling dress
It puts including rack, two cooling bodies and water tank 12, two cooling bodies are located at 2 left and right sides of workbench, two water tanks respectively
12 are welded in rack, and water tank 12 is equipped with water inlet 17 and water inlet lid, and water inlet lid is threadedly coupled with water inlet 17.It is cold
But mechanism includes wind turbine 11, wind bucket 1, drying layer 5 and baffle 4, and wind turbine 11 is fixed by bolts in rack, and wind bucket 1 is open
Towards workbench 2, wind bucket 1 is welded in rack, and wind bucket 1 is equipped with detection mouth 16 and detection lid, and detection mouth 16 is located at
1 top of wind bucket, and detection mouth 16 is located between 1 bottom of wind bucket and baffle 4.Drying layer 5 in the present embodiment is two layers of mistake
Strainer and the drier between two layers of filter screen, the drier in the present embodiment is water-absorbing resin, and 5 outer rim of drying layer is cementing
On 1 inner wall of wind bucket.1 bottom of wind bucket is equipped with air intake passage 15, and the outlet air end of wind turbine 11 is connected with air intake passage 15, water tank
12 gluings have water inlet pipe, and water inlet pipe right end is connected with air intake passage 15.1 lower sides of wind bucket are equipped with water outlet 14, blowing
Channel 41 is close to 5 one end of drying layer integrally formed with cricoid anti-drop block.
Baffle 4 is located between 1 bottom of wind bucket and drying layer 5, and 4 outer rim of baffle is cementing on 1 inner wall of wind bucket, baffle 4
Opening tool and several air intake assemblies are equipped with, opening tool includes shaft 3 and scraper plate 31, and scraper plate 31 is welded in shaft 3 and parallel
In baffle 4, scraper plate 31 is L-shaped, and 31 side of scraper plate is embedded with magnet 32, and 31 outer rim of scraper plate offsets with 1 inner wall of wind bucket, scrapes
Plate 31 is fixed with the Wiper blade 45 that can be slided along 1 inner wall of wind bucket embedded with 32 side of magnet.In wind bucket 1 electricity is fixed with bolt
Machine 13 is welded with rotating wheel in shaft 3, driving wheel is welded on the output shaft of motor 13.
Air intake assembly includes air blasting passage 41, piston 42 and tension spring 44, and air blasting passage 41 runs through baffle 4, and piston 42 can edge
Air blasting passage 41 slides, and welding machine is distinguished on piston 42 and drying layer 5 in 44 both ends of tension spring, and piston 42 is embedded with iron block 43.
The cooling step includes：
(1) prepare, open water inlet 17, add water to water tank 12, while add in 30 cubic centimetres of ice cube, and make
The liquid level of water is five centimetres higher close to 12 one end of water tank than water inlet pipe in water tank 12, turns off water inlet 17.
(2) it cools down, opens motor 13 and wind turbine 11 on side wind bucket 1, and make electric iron far from workbench 2；In work
When making the circuit board temperature on platform 2 and being reduced to 30 degrees Celsius, motor 13 and wind turbine 11 are closed, and by circuit board from workbench 2
On remove；Water outlet 14 was opened every ten minutes, water outlet 14 is closed after two minutes.
(3) it commutates, when accumulative usage time reaches 20 minutes, closes water inlet switch 18, open simultaneously 14 liang of water outlet
Minute, ten minutes after the closing of water inlet switch 18, moisture detection probe is stretched into from detection mouth 16 in wind bucket 1, in wind bucket 1
When the relative humidity of chamber reaches 40 percent, the crosswind machine 11 is closed, opens the motor 13 of opposite side and wind turbine 11.
(4) it replaces, constantly repeatedly step (3), measures the wet of the wind that is once blown out from 1 opening of wind bucket per hour
Degree, when relative humidity reaches 5 percent, removes filter screen, replaces with not used drier.
After step (1) adds in ice cube, ice cube reduces the temperature of water.
Circuit board is placed on workbench 2 and is welded, when step (2) cools down circuit board, opens motor 13
After wind turbine 11, wind turbine 11 makes extraneous air enter in wind bucket 1 from air intake passage 15, the pressure increase in wind bucket 1.Electricity
13 drive shaft 3 of machine rotates, and scraper plate 31 rotates therewith, and the side that scraper plate 31 is made to be fixed with magnet 32 first passes through air intake assembly.
Scraper plate 31 is fixed with 32 side of magnet and first passes through air blasting passage 41, and when scraper plate 31 is close to air blasting passage 41, piston 42 is made in magnetic force
It is moved with lower beginning along air blasting passage 41 to 1 bottom of wind bucket；It is logical that 31 fixed magnet of scraper plate, 32 side just moves to blowing
During 41 end of road, scraper plate 31 causes to hinder to skidding off for piston 42；Cross air blasting passage 41 in 31 fixed magnet of scraper plate, 32 side
During end, piston 42 continues on air blasting passage 41 to 1 basal sliding of wind bucket under magneticaction, finally from air blasting passage 41
It skids off, air blasting passage 41 is opened at this time, and the air in wind bucket 1 is flowed out from air blasting passage 41.Scraper plate 31 is fixed with magnet 32
When side is continued far from air blasting passage 41, piston 42 is drawn under the action of tension spring 44 in air blasting passage 41, is reclosed and is blown
Wind channel 41.
In the process, the wind that the opening of wind bucket 1 is blowed to from 1 bottom of wind bucket is formed in wind bucket 1, air flows through air inlet
During channel 15, according to Bernoulli effect, the water in water tank 12 is inhaled into from water inlet pipe in air intake passage 15, then as air into
Enter in wind bucket 1.Dust and the water of sucking are mixed in air, then is contacted together with baffle 4, water forms droplet on 4 surface of baffle,
Dust of the dust adsorption in droplet surface, air is eliminated, and droplet contacts in air flow process with baffle 4, and
It is attached on baffle 4.When scraper plate 31 rotates, the interior droplet for having dust is scraped, finally moves to 4 lower part of baffle in scraper plate 31
When, water flows to 1 lower part of wind bucket along scraper plate 31 and baffle 4 under the effect of gravity.It is empty when the air of outflow passes through drying layer 5
Gas is dried, and last wind blows to the wind bucket 1 of the circuit board and opposite side on workbench 2 from 1 opening of wind bucket.It opens
After water outlet 14, the water of liquid is flowed out from water outlet 14 in inlet bucket, is no longer remained in inlet bucket.
After step (3) closes the crosswind machine 11, opening opposite side motor 13 and wind turbine 11, the opening of another wind bucket 1
The wind for blowing to workbench 2 is formed, circuit board is cooled down.And since another wind bucket 1 is located at 2 opposite side of workbench, from another
The wind of one wind bucket 1 blowout enter before wind bucket 1 in, and the motor 13 in wind bucket 1 before is not turned off, so should be into
Air blasting passage 41 on wind bucket 1 is still opened, therefore the wind bucket 1 before being passed through from the wind that another wind bucket 1 is blown into, then from into
Wind channel 15 is blown out, and wind bucket 1 before is dried.Drying of the drier of replacement to the wind blown out from air blasting passage 41
Effect is more preferable.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without departing from the inventive concept of the premise, several modifications and improvements can also be made, these should also be considered as the guarantor of the present invention
Range is protected, these all do not interfere with the effect and practical applicability that the present invention is implemented.The present invention omits the technology of description, shape
Shape, construction part are known technology.
Claims (5)
1. welding circuit board cooling means, which is characterized in that cooled down using cooling device to circuit board, the cooling device
It is located at the cooling body at workbench both ends respectively including rack, water tank and two, the water tank is fixed in rack, the water tank
It is equipped with closed water inlet；The cooling body includes the wind turbine being fixed in rack, wind bucket, is fixed in wind bucket
Drying layer and baffle, the drying layer is detachably connected with wind bucket inner wall, and the baffle is fixed in wind bucket, it is described into
For wind bucket opening towards workbench, the wind bucket is equipped with closed detection mouth, and the air inlet bottom of the barrel is equipped with air intake passage,
The wind turbine is connected with air intake passage, and the water inlet pipe that one end is connected with air intake passage side wall, water inlet pipe are fixed on the water tank
The water inlet switch of water inlet pipe can be closed by being equipped with；The baffle is located between air inlet bottom of the barrel and drying layer, is set on the baffle
There are opening tool and several air intake assemblies, the opening tool includes shaft and is fixed in shaft and is parallel to the scraper plate of baffle, institute
It is L-shaped to state scraper plate, and scraper plate side is fixed with magnet, be fixed on the wind bucket can drive shaft rotation motor；It is described
Air intake assembly includes the air blasting passage through baffle, the piston that can be slided along air blasting passage and both ends and is separately fixed at piston with doing
Tension spring on dry layer, the piston can be attracted by magnet；
The cooling step includes：
(1) prepare, open water inlet, add water to water tank, and make the liquid level of water in water tank higher close to water tank one end than water inlet pipe
1~5cm turns off water inlet；
(2) it cools down, opens motor and wind turbine on the wind bucket of side, and make electric iron far from workbench；Electricity on the table
When road plate temperature is reduced to 15~30 DEG C, motor and wind turbine are closed, and circuit board is removed from workbench；
(3) it commutates, when accumulative usage time reaches 15~20min, closes 7~10min after water inlet switch, Humidity Detection is visited
Head is stretched into from detection mouth in wind bucket, when the relative humidity for entering the wind barrel cavity reaches 40~55%, is closed the crosswind machine, is opened
The motor and wind turbine of opposite side；
(4) it replaces, constantly repeatedly step (3), the humidity of the wind once blown out from wind bucket opening is measured per hour, in phase
When reaching 5~10% to humidity, drying layer is replaced.
2. welding circuit board cooling means according to claim 1, which is characterized in that the wind bucket lower part is equipped with and can seal
The water outlet closed；Step (2) opens water outlet every 5~10min, and water outlet is closed after 1~2min.
3. welding circuit board cooling means according to claim 2, which is characterized in that the drying layer include two layers with into
The filter screen and the drier between filter screen that wind bucket inner wall is detachably connected；During the step (4) replacement drying layer only
Replace drier.
4. welding circuit board cooling means according to claim 3, which is characterized in that the step (1) adds into water tank
Ice cube is added in while entering water.
5. welding circuit board cooling means according to claim 4, which is characterized in that the step (3) measures wind bucket
Before interior humidity, 1~2min of water outlet is first opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711317791.0A CN108161163A (en) | 2017-12-12 | 2017-12-12 | Welding circuit board cooling means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711317791.0A CN108161163A (en) | 2017-12-12 | 2017-12-12 | Welding circuit board cooling means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108161163A true CN108161163A (en) | 2018-06-15 |
Family
ID=62524987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711317791.0A Withdrawn CN108161163A (en) | 2017-12-12 | 2017-12-12 | Welding circuit board cooling means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108161163A (en) |
-
2017
- 2017-12-12 CN CN201711317791.0A patent/CN108161163A/en not_active Withdrawn
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180615 |