CN109661119A - Dryer used for printed circuit board - Google Patents
Dryer used for printed circuit board Download PDFInfo
- Publication number
- CN109661119A CN109661119A CN201811482869.9A CN201811482869A CN109661119A CN 109661119 A CN109661119 A CN 109661119A CN 201811482869 A CN201811482869 A CN 201811482869A CN 109661119 A CN109661119 A CN 109661119A
- Authority
- CN
- China
- Prior art keywords
- air duct
- circuit board
- printed circuit
- dryer
- flue
- 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- Withdrawn
Links
Classifications
-
- 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
- H05K3/22—Secondary treatment of printed circuits
- H05K3/227—Drying of printed circuits
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention relates to Manufacturing Technology for PCB fields.The embodiment of the present invention provides a kind of dryer used for printed circuit board, it include: flue, heat source generator, air duct and multiple stoving racks, multiple stoving racks are erected on the air duct with preset interval, the air duct is hollow tubular structure, it is located in the central location of the flue, the lower end of the air duct is connect with the gas outlet of the heat source generator, multiple exhaust vents are laid on the air duct, the high-temperature gas that the heat source generator generates can be discharged by the exhaust vent of the air duct to dry to the printed circuit board being placed on the stoving rack.The dryer provided through the invention enables to the internal temperature of dryer consistent, improves the drying effect to printed circuit board.
Description
Technical field
The present invention relates to Manufacturing Technology for PCB fields, specifically, a kind of dryer used for printed circuit board.
Background technique
Printed circuit board (Printed Circuit Board, PCB), is one of important component of electronics industry.It is almost every
Kind electronic equipment, it is small to arrive electronic watch, calculator, computer, communication electronic device, military issue weapons system are arrived greatly, as long as there is collection
At electronic components such as circuits, printed circuit board will be used.In electronic product research process, most basic success factor is
The manufacture of printed circuit board.The manufacturing quality of printed circuit board directly influences the quality and cost of entire product, or even influences
The success or failure of commercial competition.
In the production process of printed circuit board, it is related to many wet process manufacture crafts, such as circuit etching processing and surface
Coarse processing etc. requires to carry out drying and processing to printed circuit board in time after carrying out these processing；Meanwhile printed circuit board
Device and pad just can be preferably combined together by scaling powder after temperature increases to a certain extent, improve welding effect,
So being also required to carry out drying and processing to printed circuit board.However, in the prior art, in printed circuit board drying, dryer
Interior non-uniform temperature, drying effect are poor.
Summary of the invention
When for being dried in the prior art to printed circuit board, non-uniform temperature in dryer, the skill of drying effect difference
Art problem, the present invention provides a kind of dryers used for printed circuit board, can make the portion in dryer using the dryer
Temperature is consistent, improves the drying uniformity inside dryer, improves the drying effect of printed circuit board.
To achieve the above object, dryer used for printed circuit board provided by the invention includes: flue, heat source generator, wind
Cylinder and multiple stoving racks, multiple stoving racks are erected on the air duct with preset interval, and the air duct is hollow tubular knot
Structure is located in the central location of the flue, and the lower end of the air duct is connect with the gas outlet of the heat source generator, the wind
Multiple exhaust vents are laid on cylinder, the high-temperature gas that the heat source generator generates can be discharged by the exhaust vent of the air duct
To be dried to the printed circuit board being placed on the stoving rack.
Further, the interlude of the flue is cylindrical-shaped structure, and multiple stoving racks are located in the interlude
At position.
Further, the furnace roof of the flue is downward opening bamboo hat shape structure.
Further, the furnace bottom of the flue is opening up bamboo hat shape structure.
Further, the dryer further includes the valve for releasing the condensate liquid in flue, and the valve is set to
The bottom of the furnace bottom.
Further, the exhaust vent is laid on the air duct in plum blossom-shaped.
Further, the middle position of the stoving rack offers centre bore, and the stoving rack passes through the centre bore set
Outside the air duct.
Further, it is provided on the stoving rack multiple for being installed with the groove of the printed circuit board.
Further, the groove is radially laid on the stoving rack.
Further, the stoving rack is reticular structure.
The technical solution provided through the invention, the present invention at least have the following technical effect that
Dryer used for printed circuit board of the invention is provided with air duct in the central location of flue, and is laid on air duct
Multiple exhaust vents, the hot gas that heat source generator generates enter air duct, are discharged into flue by exhaust vent, can dry to being placed in
The printed circuit board quarreled is dried, and is guaranteed that the temperature of any position inside dryer reaches same temperature, is improved
Drying uniformity inside dryer improves drying effect.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Fig. 1 is the schematic diagram of dryer used for printed circuit board provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of the stoving rack of dryer used for printed circuit board provided in an embodiment of the present invention.
Description of symbols
1 flue, 2 heat source generator
3 air duct, 4 stoving rack
5 valve, 11 furnace roof
12 interlude, 13 furnace bottom
31 exhaust vent, 41 centre bore
42 grooves
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the embodiment of the present invention.It should be understood that this
Locate described specific embodiment and be merely to illustrate and explain the present invention embodiment, is not intended to restrict the invention embodiment.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually needle
For direction shown in the drawings either for it is vertical, on vertical or gravity direction for each component mutual alignment relation
Word is described.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Referring to FIG. 1, the embodiment of the present invention provides a kind of dryer used for printed circuit board, the dryer include: flue 1,
Heat source generator 2, air duct 3 and multiple stoving racks 4, multiple stoving racks 4 are erected on the air duct 3 with preset interval, institute
Stating air duct 3 is hollow tubular structure, is located in the central location of the flue 1, and the lower end of the air duct 3 and the heat source occur
The gas outlet of device 2 connects, and multiple exhaust vents 31, the high-temperature gas energy that the heat source generator 2 generates are laid on the air duct 3
Enough it is discharged by the exhaust vent 31 of the air duct 3 to be dried to the printed circuit board being placed on the stoving rack 4.
Specifically, in the embodiment of the present application, the central location of flue 1, and air duct 3 and heat source generator 2 is arranged in air duct 3
Gas outlet connection, when drying to printed circuit board, the hot gas that heat source heater 2 generates enters air duct 3, and passes through
Exhaust vent 31 is discharged into the flue 1 of dryer, and multiple exhaust vents 31 are uniformly distributed on the barrel of air duct 3 from top to bottom, can
Guarantee the outlet air uniformity of hot gas.Simultaneously as stoving rack 4 is erected on air duct 3 with preset interval, also can further protect
Card stoving rack 4 is uniformly arranged in dryer, guarantees the being heated evenly property for the printed circuit board being placed on stoving rack 4, is guaranteed
The temperature of any position reaches same temperature inside dryer, improves the drying uniformity inside dryer, improves drying
Effect.
Further, the interlude 12 of the flue 1 is cylindrical-shaped structure, and multiple stoving racks 4 are located in described
Between at 12 position of section.
Specifically, in the embodiment of the present application, the interlude 12 of flue 1 is cylindrical-shaped structure, can guarantee air duct 3 and centre
Distance of the section 12 between the gallbladder wall of any horizontal position is identical, guarantees the temperature uniformity of interlude 12, further increases baking
The drying effect of dry machine.
Further, the furnace roof 11 of the flue 1 is downward opening bamboo hat shape structure.
Specifically, in the embodiment of the present application, furnace roof 11 is downward opening bamboo hat shape structure, when hot gas is from air duct 3
When top is discharged, there can be the gallbladder wall of gradient to flow downward along furnace roof 11, furnace bottom 13 be reached by interlude 12, then by furnace
Bottom 13 flows to furnace roof 11, and thermal cycle is formed in flue 1, guarantees the temperature uniformity inside flue 1, guarantees inside dryer
The temperature of any position reaches same temperature, improves the drying uniformity inside dryer, improves drying efficiency and drying
Effect, it is energy saving.
Meanwhile when hot gas and printed circuit board are flowed to the gallbladder wall of flue 1 by thermogenetic hot steam, due to gallbladder
The temperature of wall is lower, can condense into condensate liquid on gallbladder wall, and condensate liquid can have the gallbladder wall of gradient to flowing down along furnace roof 11
It is dynamic, furnace bottom 13 is reached by interlude 12.It can be avoided condensing droplet to drop down on printed circuit board, guarantee on printed circuit board
Cleaning, is further ensured that the drying effect of printed circuit board.
Further, the furnace bottom 13 of the flue 1 is opening up bamboo hat shape structure.
Specifically, in the embodiment of the present application, furnace bottom 13 is opening up bamboo hat shape structure, when condensate liquid flow to furnace bottom 13
When, it can flow downward along the gallbladder wall of furnace bottom 13, collect in the lowest part of furnace bottom 13, can be avoided condensate liquid and appoint in furnace bottom 13
Meaning flowing, continues to evaporate, further increases the drying effect of dryer.
Further, the dryer further includes the valve 5 for releasing the condensate liquid in flue 1, and the valve 5 is arranged
In the bottom of the furnace bottom 13.
Specifically, in the embodiment of the present application, the bottom of furnace bottom 13 is provided with valve 5, when condensate liquid collects in furnace bottom 13
Bottom when, valve 5 can be opened so that condensate liquid by valve 5 flow out dryer, avoid condensate liquid inside dryer after
Continuous evaporation, further increases the drying efficiency and drying effect of dryer.
Further, the exhaust vent 31 is laid on the air duct 3 in plum blossom-shaped.
Specifically, in the embodiment of the present application, exhaust vent 31 is laid on the air duct 3 in plum blossom-shaped, and laying in this way can be with
Guarantee the outlet air uniformity of hot gas, so that the temperature of any position reaches same temperature inside dryer, guarantees drying
Drying uniformity inside machine improves drying effect.
Further, the middle position of the stoving rack 4 offers centre bore 41, and the stoving rack 4 passes through the center
Hole 41 is sheathed on outside the air duct 3.
Specifically, in the embodiment of the present application, the middle position of stoving rack 4 offers centre bore 41, and multiple stoving racks 4 pass through
Centre bore 41 is equably sheathed on outside air duct 3 with preset interval, and stoving rack 4 is cirque structure, and the configuration of stoving rack 4 is in
Between section 12 configuration it is identical, improve the space utilization rate inside dryer, and increase the area of stoving rack 4, can be improved
Quantity of the dryer to the drying of printed circuit board.
Further, it is provided on the stoving rack 4 multiple for being installed with the groove 42 of the printed circuit board.
Specifically, in the embodiment of the present application, multiple grooves 42 are provided on stoving rack 4, groove 42 can be to printing electricity
Road plate is fixed, and printed circuit board is avoided to slide from stoving rack 4, is formed and is protected to printed circuit board.
Further, the groove 42 is radially laid on the stoving rack 4.
Specifically, it in the embodiment of the present application, after hot gas is discharged from exhaust vent 31, is put first at exhaust vent 31
The printed circuit board set is dried, and is then flowed to from inside to outside at the gallbladder wall of flue 1, to the printed circuit at gallbladder wall
Plate is dried, and when reaching gallbladder wall, the temperature of hot gas might be slightly below the temperature at exhaust vent 31, and groove 42 is radially
It is laid on stoving rack 4, the arrangement density of the printed circuit board at gallbladder wall can be made to be less than and put at exhaust vent 31
The arrangement density for the printed circuit board set, so that the print placed at the drying effect of the printed circuit board at gallbladder wall and exhaust vent 31
Circuit board processed is identical, guarantees that the temperature of any position inside dryer reaches same temperature, improves the baking inside dryer
Dry uniformity, improves drying effect.
Further, the stoving rack 4 is reticular structure.
Specifically, in the embodiment of the present application, stoving rack 4, which is set as reticular structure, can guarantee hot gas inside dryer
Flow efficiency, guarantee that the temperature of any position inside dryer reaches same temperature, improve the drying inside dryer
Uniformity improves drying effect.
Dryer used for printed circuit board of the invention is provided with air duct in the central location of flue, and is laid on air duct
Multiple exhaust vents, the hot gas that heat source generator generates enter air duct, are discharged into flue by exhaust vent, can dry to being placed in
The printed circuit board quarreled is dried, and is guaranteed that the temperature of any position inside dryer reaches same temperature, is improved
Drying uniformity inside dryer improves drying effect.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of dryer used for printed circuit board, which is characterized in that the dryer includes:
Flue (1), heat source generator (2), air duct (3) and multiple stoving racks (4), multiple stoving racks (4) are with preset interval
It is erected on the air duct (3), the air duct (3) is hollow tubular structure, is located in the central location of the flue (1), institute
The lower end for stating air duct (3) is connect with the gas outlet of the heat source generator (2), is laid with multiple exhaust vents on the air duct (3)
(31), the high-temperature gas that the heat source generator (2) generates can be discharged with to putting by the exhaust vent (31) of the air duct (3)
The printed circuit board being placed on the stoving rack (4) is dried.
2. dryer according to claim 1, which is characterized in that the interlude (12) of the flue (1) is cylindric knot
Structure, multiple stoving racks (4) are located at the interlude (12) position.
3. dryer according to claim 1, which is characterized in that the furnace roof (11) of the flue (1) is downward opening
Bamboo hat shape structure.
4. dryer according to claim 1, which is characterized in that the furnace bottom (13) of the flue (1) is opening up
Bamboo hat shape structure.
5. dryer according to claim 4, which is characterized in that the dryer further includes for releasing in flue (1)
Condensate liquid valve (5), the valve (5) is set to the bottom of the furnace bottom (13).
6. dryer according to claim 1, which is characterized in that the exhaust vent (31) is laid in the wind in plum blossom-shaped
On cylinder (3).
7. dryer according to claim 1, which is characterized in that the middle position of the stoving rack (4) offers center
Hole (41), the stoving rack (4) are sheathed on the air duct (3) outside by the centre bore (41).
8. dryer according to claim 7, which is characterized in that be provided on the stoving rack (4) multiple for being installed with
The groove (42) of the printed circuit board.
9. dryer according to claim 8, which is characterized in that the groove (42) is radially laid in the drying
On frame (4).
10. dryer according to claim 1, which is characterized in that the stoving rack (4) is reticular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482869.9A CN109661119A (en) | 2018-12-05 | 2018-12-05 | Dryer used for printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482869.9A CN109661119A (en) | 2018-12-05 | 2018-12-05 | Dryer used for printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109661119A true CN109661119A (en) | 2019-04-19 |
Family
ID=66111899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811482869.9A Withdrawn CN109661119A (en) | 2018-12-05 | 2018-12-05 | Dryer used for printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109661119A (en) |
-
2018
- 2018-12-05 CN CN201811482869.9A patent/CN109661119A/en not_active Withdrawn
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Legal Events
| 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 |
Application publication date: 20190419 |
|
| WW01 | Invention patent application withdrawn after publication |