CN109618498A - The device that circuit board is dried - Google Patents
The device that circuit board is dried Download PDFInfo
- Publication number
- CN109618498A CN109618498A CN201811550384.9A CN201811550384A CN109618498A CN 109618498 A CN109618498 A CN 109618498A CN 201811550384 A CN201811550384 A CN 201811550384A CN 109618498 A CN109618498 A CN 109618498A
- Authority
- CN
- China
- Prior art keywords
- cabinet
- drying
- circuit board
- diversion
- case top
- 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- Withdrawn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
-
- 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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/08—Treatments involving gases
- H05K2203/081—Blowing of gas, e.g. for cooling or for providing heat during solder reflowing
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention provides the device that a kind of pair of circuit board is dried, comprising: the drying box with case top and cabinet, cabinet offer the air inlet being connected to case top；Heat source generator is arranged in case top, for generating dry hot gas；Diversion boosting device, including diversion boosting part and the diversion boosting pipe being set in outside diversion boosting part, diversion boosting part outer wall offers the screw thread air duct of water conservancy diversion hot gas, one end of diversion boosting device is connected to the exhaust outlet of heat source generator, the other end is connected to the air inlet on case top, and the hot gas that heat source generator generates enters diversion boosting device and via screw thread air duct from the inner cavity that the air inlet on case top is discharged into cabinet by exhaust outlet；Stoving rack is set in the inner cavity of cabinet, and from top to bottom spaced set has multiple drying trays for being used to place circuit board to stoving rack.It is provided by the invention that drying uniformity inside drying device can be improved to the device that circuit board is dried, the drying effect of circuit board is improved, drying rate is accelerated.
Description
Technical field
The present invention relates to printed circuit board manufacturing technology fields, and in particular, to the dress that a kind of pair of circuit board is dried
It sets.
Background technique
Printed circuit board (Printed Circuit Board, PCB), abbreviation circuit board is the important component of electronics industry
One of.Almost every kind of electronic equipment, it is small to arrive electronic watch, calculator, computer, communication electronic device, military issue weapons system are arrived greatly
System, as long as there is the electronic components such as integrated circuit, will use circuit board.In electronic product research process, it is most basic at
Function factor is the manufacture of circuit board.The manufacturing quality of 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 circuit board, it is related to many wet process manufacture crafts, such as circuit etching processing and rough surface
Processing etc. requires to carry out drying and processing to circuit board in time after carrying out these processing；Meanwhile circuit board is increased in temperature
Device and pad just can be preferably combined together by scaling powder after to a certain degree, raising welding effect, so being also required to pair
Circuit board carries out drying and processing.However, in the prior art, in circuit board drying, temperature highest near air inlet, dry dress
Interior non-uniform temperature is set, drying effect is poor.
Summary of the invention
For it is dry to circuit board in the prior art when, non-uniform temperature in drying device, the technology of drying effect difference
Problem, the present invention provides the devices that a kind of pair of circuit board is dried, and can be made in drying device using the drying device
The temperature in portion is consistent, improves the drying uniformity inside drying device, improves the drying effect of circuit board.
To achieve the above object, provided by the invention includes: with case top and cabinet to the device that circuit board is dried
Drying box, the cabinet is hollow cavity formula structure, and the cabinet offers the air inlet being connected to the case top；Heat source hair
Raw device, is arranged in the case top, for generating dry hot gas；Diversion boosting device, including diversion boosting part and be arranged
Diversion boosting pipe outside the diversion boosting part, the diversion boosting part outer wall offer the spiral shell for hot gas described in water conservancy diversion
The one end in line air duct, the diversion boosting device is connected to the exhaust outlet of the heat source generator, the other end and the case top into
Port connection, the hot gas that the heat source generator generates can be entered by the exhaust outlet diversion boosting device and via
The screw thread air duct is discharged into the inner cavity of the cabinet from the air inlet on the case top；Stoving rack is set to the interior of the cabinet
In chamber, from top to bottom spaced set has multiple drying trays for being used to place the circuit board to the stoving rack.
Further, the cabinet is cylindrical type.
Further, the drying tray is circle, and the diameter of the drying tray is 3/4ths of the box body diameter.
Further, described device further includes multiple wind deflectors, and the multiple wind deflector is from top to bottom twist laid
On the inner sidewall of the cabinet, the direction of rotation of the wind deflector is identical as the direction of rotation in the screw thread air duct.
Further, described device further includes liquid gas outlet out corresponding with the wind deflector, and the liquid gas outlet out is opened
At the bottom position interconnected of the wind deflector and the cabinet.
Further, described device further includes liquid escape pipe out identical with the liquid gas outlet quantity out, the liquid out
Escape pipe is mounted on the bottom of the cabinet and is connected to corresponding liquid gas outlet out, and each liquid escape pipe out is provided with
Valve.
Further, the drying tray is reticular structure.
The technical solution provided through the invention, the present invention at least have the following technical effect that
The device that circuit board is dried of the invention is provided with heat source generator on case top, can be generated for doing
The hot gas of dry circuit board, is provided with diversion boosting device between heat source generator and air inlet, and heat source generator generates hot gas
After body, diversion boosting device is flowed into radial direction, hot gas is become from radial direction by tangential direction by diversion boosting device,
Cabinet is flowed into from air inlet, from the top eddy flow of cabinet to the bottom of cabinet, so that hot gas physical efficiency flows to any position in cabinet
It sets, improves the drying uniformity inside drying device, improve the drying effect of circuit board, accelerate drying rate.
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 the device provided in an embodiment of the present invention that circuit board is dried.
Description of symbols
1 drying box, 2 heat source generator
3 diversion boosting device, 4 stoving rack
5 wind deflector, 6 valve
11 tops of cabinet 12 casees
31 diversion boosting pipes 32 flow plenum member
41 drying tray, 121 air inlet
122 gas outlet, 321 screw thread air duct
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 the device that a kind of pair of circuit board is dried, which includes: to have
The drying box 1 on case top 11 and cabinet 12, the cabinet 12 are hollow cavity formula structure, and the cabinet 12 offers and the case top
The air inlet 121 of 11 connections；Heat source generator 2 is arranged in the case top 11, for generating dry hot gas；Water conservancy diversion increases
Depressor 3, including diversion boosting part 32 and the diversion boosting pipe 31 being set in outside the diversion boosting part 32, the diversion boosting
32 outer wall of part offers the screw thread air duct 321 for hot gas described in water conservancy diversion, one end of the diversion boosting device 3 and the heat source
The exhaust outlet of generator 2 is connected to, and the other end is connected to the air inlet 121 on the case top 11, the heat that the heat source generator 2 generates
Gas can enter the diversion boosting device 3 and via the screw thread air duct 321 from the case top 11 by the exhaust outlet
Air inlet 121 is discharged into the inner cavity of the cabinet 12；Stoving rack 4 is set in the inner cavity of the cabinet 12, the stoving rack 4
From top to bottom spaced set has multiple for placing the drying tray 41 of the circuit board.
Specifically, in embodiment of the present invention, drying box 1 includes case top 11 and cabinet 12, and cabinet 12 is hollow cavity formula
Structure, is placed with stoving rack 4 in the inner cavity of cabinet 12, stoving rack 4 from top to bottom spaced set have it is multiple for placing electricity
The drying tray 41 of road plate offers air inlet 121 between case top 11 and cabinet 12, and the setting of air inlet 121 is at 12 top of cabinet
Central position.Heat source generator 2 and diversion boosting device 3 are provided in case top 11, heat source generator 2 is for generating dry heat
Gas, diversion boosting device 3 are arranged between heat source generator 2 and air inlet 121, and diversion boosting device 3 includes diversion boosting part 32
And it is set in the diversion boosting pipe 31 outside diversion boosting part 32, a plurality of screw thread air duct 321 is offered on diversion boosting part 32.Heat
After source generator 2 generates hot gas, diversion boosting device 3, after screw thread air duct 321, hot gas are flowed into radial direction
Tangential direction is become from radial direction and flows into cabinet 12 from air inlet 121, by the central location of cabinet 12 with tangential direction stream
It moves and is further continued for downward eddy flow to the side wall of cabinet 12 up to the bottom of cabinet 12.
The device that circuit board is dried that embodiment provides through the invention can be avoided in cabinet and only enter the wind
The case where hot gas can be blown at mouthful position guarantees touch hot gas at each position in cabinets cavity,
Circulation of hot gases is formed in cabinet, so that each piece of circuit board placed in cabinet is heated evenly, is improved inside drying device
Uniformity is dried, the drying effect of circuit board is improved, accelerates drying rate.
Further, the cabinet 12 is cylindrical type.
Specifically, in embodiment of the present invention, cabinet 12 is that cylindrical type enables to hot gas with tangential direction from cabinet
It is flowed into cabinet 12 at 12 top center positions, reaches 12 side wall of cabinet and continue downward eddy flow later, form the rotation of stable and uniform
Turn of tidal stream field guarantees that hot gas can improve the temperature uniformity in cabinet 12 from 12 top eddy flow of cabinet to the bottom of cabinet 12,
Guarantee the drying effect of circuit board, accelerates drying rate.
Further, the drying tray 41 is circle, and the diameter of the drying tray 41 is the four of 12 diameter of cabinet
/ tri-.
Specifically, in embodiment of the present invention, drying tray 41 is circle, identical as the shape of the cross section of cabinet 12, can
To place greater number of circuit board on drying tray 41, and the diameter of drying tray 41 is 3/4ths of 12 diameter of cabinet, can
To guarantee there are enough spaces between 12 side wall of drying tray 41 and cabinet, it is ensured that hot gas can in cabinet 12 Uniform Flow,
So that circuit board is dryly more abundant.
Further, described device further includes multiple wind deflectors 5, the multiple wind deflector 5 from top to bottom twist cloth
It is located on the inner sidewall of the cabinet 12, the direction of rotation phase of the direction of rotation of the wind deflector 5 and the screw thread air duct 321
Together.
Specifically, in embodiment of the present invention, multiple wind deflectors 5, wind deflector 5 are additionally provided on the inner sidewall of cabinet 12
It is twist extended downwardly by 12 top of cabinet along inner sidewall, extends to the bottom of cabinet 12, the rotation side of wind deflector 5
To identical as the direction of rotation in screw thread air duct 321.Wind deflector 5 can form guiding role to hot gas, so that hot gas is in case
Uniform Flow in body 12 forms the rotational flow field of more stable and uniform so that the circuit board in drying device dry it is more equal
It is even, improve the drying effect of circuit board.
Further, described device further includes liquid gas outlet 122 out corresponding with the wind deflector 5, the liquid outlet out
Mouth 122 is opened at the bottom position interconnected of the wind deflector 5 and the cabinet 12.
Specifically, in embodiment of the present invention, when hot gas and circuit board are flowed to cabinet by thermogenetic hot steam
When 12 side wall, since the temperature of side wall is lower, condensate liquid can be condensed on side wall, condensate liquid can along wind deflector 5 to
Lower flowing is flow to always at the bottom position interconnected of wind deflector 5 and cabinet 12, and case is discharged by going out liquid gas outlet 122
Body 12.
Condensate liquid can be avoided at cabinet bottom to the device that circuit board is dried using what embodiment of the present invention provided
Portion is arbitrarily flowed, and continues to evaporate, and further increases the drying effect of drying unit.
Further, described device further include with it is described go out 122 quantity of liquid gas outlet it is identical go out liquid escape pipe, it is described go out
Liquid escape pipe is mounted on the bottom of the cabinet 12 and is connected to corresponding liquid gas outlet 122 out, each liquid escape pipe out
It is provided with valve 6.
Specifically, in embodiment of the present invention, liquid escape pipe is mounted on the bottom of the cabinet 12 out, and liquid escape pipe is equal out
It is provided with valve 6, when condensate liquid collects in the bottom of cabinet 12, valve 6 can be opened, so that condensate liquid is by going out liquid outlet
Mouth 122 enters liquid escape pipe and flows out drying unit again, avoids condensate liquid from continuing to evaporate inside drying unit, further increases
The drying efficiency and drying effect of drying unit.
Further, the drying tray 41 is reticular structure.
Specifically, in embodiment of the present invention, drying tray 41, which is set as reticular structure, can guarantee that hot gas is filled in drying
Internal flow efficiency is set, guarantees that the temperature of any position inside drying unit reaches same temperature, improves in dryer
The drying uniformity in portion improves drying effect.
The device that circuit board is dried of the invention is provided with heat source generator on case top, can be generated for doing
The hot gas of dry circuit board, is provided with diversion boosting device between heat source generator and air inlet, and heat source generator generates hot gas
After body, diversion boosting device is flowed into radial direction, hot gas is become from radial direction by tangential direction by diversion boosting device,
Cabinet is flowed into from air inlet, from the top eddy flow of cabinet to the bottom of cabinet, so that hot gas physical efficiency flows to any position in cabinet
It sets, improves the drying uniformity inside drying device, improve the drying effect of circuit board, accelerate drying rate.
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 (7)
1. the device that a kind of pair of circuit board is dried, which is characterized in that described device includes:
Drying box (1) with case top (11) and cabinet (12), the cabinet (12) are hollow cavity formula structure, the cabinet
(12) air inlet (121) being connected to the case top (11) is offered；
Heat source generator (2) is arranged in the case top (11), for generating dry hot gas；
Diversion boosting device (3) including diversion boosting part (32) and is set in the diversion boosting of the diversion boosting part (32) outside
It manages (31), diversion boosting part (32) outer wall offers the screw thread air duct (321) for hot gas described in water conservancy diversion, the water conservancy diversion
One end of booster (3) is connected to the exhaust outlet of the heat source generator (2), the air inlet of the other end and the case top (11)
(121) it is connected to, the hot gas that the heat source generator (2) generates can enter the diversion boosting device by the exhaust outlet
(3) and via the screw thread air duct (321) from the air inlet (121) of the case top (11) it is discharged into the inner cavity of the cabinet (12)
In；
Stoving rack (4), is set in the inner cavity of the cabinet (12), the stoving rack (4) from top to bottom spaced set have it is more
A drying tray (41) for being used to place the circuit board.
2. the apparatus according to claim 1, which is characterized in that the cabinet (12) is cylindrical type.
3. the apparatus of claim 2, which is characterized in that the drying tray (41) is round, and the drying tray
(41) diameter is 3/4ths of the cabinet (12) diameter.
4. device according to claim 3, which is characterized in that described device further includes multiple wind deflectors (5), the multiple
Wind deflector (5) is from top to bottom twist laid on the inner sidewall of the cabinet (12), the direction of rotation of the wind deflector (5)
It is identical as the direction of rotation of the screw thread air duct (321).
5. device according to claim 4, which is characterized in that described device further includes corresponding with the wind deflector (5)
Liquid gas outlet (122) out, liquid gas outlet (122) out are opened in the bottom phase of the wind deflector (5) with the cabinet (12)
At the position to connect.
6. device according to claim 5, which is characterized in that described device further include with it is described go out liquid gas outlet (122)
Quantity it is identical go out liquid escape pipe, it is described go out liquid escape pipe be mounted on the cabinet (12) bottom and with it is corresponding go out liquid outlet
Mouth (122) connection, each liquid escape pipe out are provided with valve (6).
7. the apparatus according to claim 1, which is characterized in that the drying tray (41) is reticular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550384.9A CN109618498A (en) | 2018-12-18 | 2018-12-18 | The device that circuit board is dried |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550384.9A CN109618498A (en) | 2018-12-18 | 2018-12-18 | The device that circuit board is dried |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109618498A true CN109618498A (en) | 2019-04-12 |
Family
ID=66010637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811550384.9A Withdrawn CN109618498A (en) | 2018-12-18 | 2018-12-18 | The device that circuit board is dried |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109618498A (en) |
-
2018
- 2018-12-18 CN CN201811550384.9A patent/CN109618498A/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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190412 |