CN113465324A - Circuit board drying device - Google Patents
Circuit board drying device Download PDFInfo
- Publication number
- CN113465324A CN113465324A CN202111035469.5A CN202111035469A CN113465324A CN 113465324 A CN113465324 A CN 113465324A CN 202111035469 A CN202111035469 A CN 202111035469A CN 113465324 A CN113465324 A CN 113465324A
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- China
- Prior art keywords
- circuit board
- air
- chamber
- plate
- drying device
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/10—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in the open air; in pans or tables in rooms; Drying stacks of loose material on floors which may be covered, e.g. by a roof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/003—Supply-air or gas filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/18—Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides a circuit board drying device, belongs to the technical field of circuit board drying devices, and aims to solve the problems of overlong drying time and low efficiency of the conventional circuit board drying device; comprises a case, a blowing unit and a placing frame unit, wherein the blowing unit and the placing frame unit are arranged in the case; an air inlet chamber, an air return chamber, a drying chamber and an equipment chamber are arranged in the case; an air dryer, a fan and an electrostatic dust collector are arranged in the equipment room; the placing frame unit is fixed in the drying chamber; the placing frame unit comprises a base and a plurality of circuit board brackets; according to the design, the surface of the circuit board is uniformly blown, so that rapid dehumidification and dust removal are realized, the problem that airflow is difficult to effectively cover the circuit board due to the blockage of components on the surface of the circuit board is solved, the circuit board drying efficiency is improved, and the problem of welding spot melting caused by long-time baking of the circuit board is reduced; effectively eliminate the static on the surface of the circuit board, reduce the adhesive force of pollutants and ensure that the cleanliness of the processed circuit board is higher.
Description
Technical Field
The invention relates to the technical field of circuit board drying devices, in particular to a circuit board drying device.
Background
The circuit board needs to be dried after being subjected to a water washing process; when the existing circuit board drying device is used for drying, water vapor on a circuit board is taken away through hot air flowing, components are arranged on the surface of the circuit board, airflow is blocked by the components and is not uniform after being blown to the surface of the circuit board, so that the water vapor on the front side of the circuit board is quickly evaporated, the water vapor on the rear side is slowly evaporated, the whole drying period is prolonged, and the efficiency is low; and long-time high-temperature baking has certain influence on the welding of components.
Publication No. CN203053151U discloses a circuit board drying device, which comprises a box body, a workpiece conveying channel, a heating device and a fan, wherein the workpiece conveying channel, the heating device and the fan are arranged in the box body, a plurality of air outlets are arranged on the side wall of the box body, the air outlets are distributed on the upper side and the lower side of the conveying channel in a staggered mode and are communicated with an air outlet of the fan through the heating device to form an air outlet channel, a partition plate is arranged between an air suction opening of the fan and the conveying channel, and a plurality of air vents are distributed on the partition plate at equal intervals; when the device dries the circuit board, the unable even effect of air current is on the surface of circuit board, makes the whole stoving time overlength of circuit board, and is inefficient.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide the circuit board drying device, and the design in the invention realizes quick dehumidification and dust removal by uniformly blowing the surface of the circuit board, solves the problem that the airflow is difficult to effectively cover the circuit board due to the blockage of components on the surface of the circuit board, improves the circuit board drying efficiency, and reduces the problem of welding spot melting caused by long-time baking of the circuit board; effectively eliminate the static on the surface of the circuit board, reduce the adhesive force of pollutants and ensure that the cleanliness of the processed circuit board is higher.
In order to solve the technical problems, the invention adopts the following technical scheme:
a circuit board drying device is characterized by comprising a case, a blowing unit and a placing frame unit, wherein the blowing unit and the placing frame unit are arranged in the case;
an air inlet chamber, an air return chamber, a drying chamber and an equipment chamber are arranged in the case; an air inlet and an air outlet are arranged on the drying chamber, the air inlet is communicated with the air inlet chamber, and the air outlet is communicated with the air return chamber;
an air dryer, a fan and an electrostatic dust collector are arranged in the equipment room; the fan is respectively communicated with the air dryer and the electrostatic dust collector; the air dryer is communicated with the air return chamber; the electrostatic dust collector is communicated with the air inlet chamber; the heating wire is fixedly arranged in the air inlet chamber;
the placing frame unit is fixed in the drying chamber; the placing rack unit comprises a base and a plurality of circuit board brackets; the circuit board bracket is movably arranged on the base; the circuit board bracket comprises a horizontal plate and two vertical plates which are integrally formed; the vertical plate is fixed on the horizontal plate; a support rod is fixedly arranged between the two vertical plates; the vertical plate and the horizontal plate are both provided with an air cavity and an opening; the opening of the vertical plate and the opening of the horizontal plate are positioned on the same side; the upper end of the horizontal plate is provided with a first rectangular hole communicated with the air cavity; a second rectangular hole communicated with the air cavity is formed in the side face of the vertical plate; the air guide plate also comprises a plurality of air guide plates; the air deflectors are respectively fixed in the first rectangular hole and the second rectangular hole; the air deflector comprises a plurality of arc plates and an air inducing sheet; the circular arc plate is fixed in the first rectangular hole and the second rectangular hole, and the air inducing piece is arranged in the air cavity; one end of the air inducing piece is fixed on the arc plate, the other end of the air inducing piece extends towards the end close to the opening, and the length of the air inducing piece is gradually reduced from the side close to the opening to the side far away from the opening.
Preferably, the base comprises a bracket and a pallet; the bracket is fixed in the drying chamber; the supporting plate is movably arranged on the bracket; the supporting plate is provided with a slot; and the horizontal plate is fixedly provided with a plug board matched with the slot.
Preferably, the support is fixedly provided with a slide rail, the supporting plate is fixedly provided with a slide block, and the slide block is movably arranged in the slide rail.
Preferably, a protective sleeve is fixedly arranged on the supporting rod.
Preferably, a plurality of partition plates are fixedly arranged in the return air chamber, and a filter screen is arranged on each partition plate; the meshes of the filter screens are gradually reduced from top to bottom.
Preferably, the circuit board brackets are arranged on the supporting plate in parallel, and the openings of the vertical plate and the horizontal plate are both arranged towards the air inlet.
Preferably, the air inlet is a rectangular opening; the air inlets are provided with a plurality of air inlets which respectively correspond to the openings of the vertical plate and the horizontal plate.
The invention has the beneficial effects that: according to the design, the surface of the circuit board is uniformly blown, so that rapid dehumidification and dust removal are realized, the problem that airflow is difficult to effectively cover the circuit board due to the blockage of components on the surface of the circuit board is solved, the circuit board drying efficiency is improved, and the problem of welding spot melting caused by long-time baking of the circuit board is reduced; effectively eliminate the static on the surface of the circuit board, reduce the adhesive force of pollutants and ensure that the cleanliness of the processed circuit board is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a circuit board drying device provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a chassis of a circuit board drying device according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a circuit board bracket of a circuit board drying device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a circuit board bracket of a circuit board drying device according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional structure view of a circuit board bracket of a circuit board drying device according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional structure view of a circuit board bracket of a circuit board drying device according to an embodiment of the present invention.
Description of reference numerals:
the air dryer comprises a case 1, a filter screen 2, an air outlet 3, an air return chamber 4, slots 5, a drying chamber 6, a supporting plate 7, an air inlet 8, an air inlet chamber 9, heating wires 10, an electrostatic precipitator 11, a fan 12, an equipment chamber 13, an air dryer 14, a support 15, a partition plate 16, an arc plate 17, an opening 18, an air cavity 19, a supporting rod 20, a protective sleeve 21, a vertical plate 22, a plugboard 23, a horizontal plate 24 and an air guide sheet 25.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "in", "upper", "lower", "lateral", "inner", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 6, a circuit board drying device includes a case 1, a blowing unit and a rack unit disposed in the case 1; a door is arranged on the case 1;
an air inlet chamber 9, an air return chamber 4, a drying chamber 6 and an equipment chamber 13 are arranged in the case 1; the drying chamber 6 is provided with an air inlet 8 and an air outlet 3, the air inlet 8 is communicated with an air inlet chamber 9, and the air outlet 3 is communicated with an air return chamber 4;
an air dryer 14, a fan 12 and an electrostatic dust collector 11 are arranged in the equipment room 13; the fan 12 is respectively communicated with the air dryer 14 and the electrostatic precipitator 11; the air dryer 14 is communicated with the air return chamber 4; the electrostatic dust collector 11 is communicated with the air inlet chamber 9; an electric heating wire 10 is fixedly arranged in the air inlet chamber 9;
the placing frame unit is fixed in the drying chamber 6; the placing frame unit comprises a base and a plurality of circuit board brackets; the circuit board bracket is movably arranged on the base; the circuit board bracket comprises a horizontal plate 24 and two vertical plates 22 which are integrally formed, and the two vertical plates 22 are arranged in parallel; the vertical plate 22 is fixed on the horizontal plate 24; a support rod 20 is fixedly arranged between the two vertical plates 22 and used for supporting the circuit board; the vertical plate 22 and the horizontal plate 24 are both provided with an air cavity 19 and an opening 18; the opening 18 of the vertical plate 22 and the opening 18 of the horizontal plate 24 are located on the same side; the upper end of the horizontal plate 24 is provided with a first rectangular hole communicated with the air cavity 19; the side surface of the vertical plate 22 is provided with a second rectangular hole communicated with the air cavity 19; the air guide plate also comprises a plurality of air guide plates; the air deflectors are respectively fixed in the first rectangular hole and the second rectangular hole; the air deflector comprises a plurality of arc plates 17 and an induced draft sheet 25; the circular arc plate 17 is fixed in the first rectangular hole and the second rectangular hole, and the induced draft piece 25 is arranged in the air cavity 19; one end of the induced air piece 25 is fixed on the circular arc plate 17, the other end extends to the one end that is close to the opening 18, be certain contained angle with the flow direction of wind, after wind blows on the induced air piece 25, flow on the circular arc plate 17 along the induced air piece 25, then blow to the circuit board through the circular arc plate 17, the wind direction of the wind that blows off through the circular arc plate 17 is towards the direction of air intake 8, two wind cross the back, blow perpendicularly to the surface of circuit board, and the length of induced air piece 25 reduces from one side that is close to the opening 18 to one side of keeping away from the opening 18 gradually, make the area of contact of the wind that every induced air piece 25 and air outlet 3 blown off the same, and then it is more even to blow the wind on circuit board surface.
Further, the base comprises a bracket 15 and a supporting plate 7; the bracket 15 is fixed in the drying chamber 6; the supporting plate 7 is movably arranged on the bracket 15; the supporting plate 7 is provided with a slot 5; an inserting plate 23 matched with the slot 5 is fixedly arranged on the horizontal plate 24, and the circuit board bracket can be inserted on the base or taken down through the inserting and matching of the inserting plate 23 and the slot 5.
Furthermore, a sliding rail is fixedly arranged on the bracket 15, a sliding block is fixedly arranged on the supporting plate 7, and the sliding block is movably arranged in the sliding rail and has the same structural principle with the sliding rail and the sliding block used by the existing drawer.
Furthermore, a protecting sleeve 21 is fixedly arranged on the supporting rod 20 and used for preventing the circuit board from being collided when the circuit board is placed.
Furthermore, a plurality of partition plates 16 are fixedly arranged in the air return chamber 4, and a filter screen 2 is arranged on each partition plate 16; the meshes of the plurality of filter screens 2 are gradually reduced from top to bottom and are used for filtering pollutants such as dust in the airflow.
Further, a plurality of circuit board brackets are arranged on the supporting plate 7 in parallel, and the openings 18 of the vertical plate 22 and the horizontal plate 24 are both arranged towards the air inlet 8.
Further, the air inlet 8 is a rectangular opening; the air inlet 8 is provided with a plurality of openings 18 corresponding to the vertical plate 22 and the horizontal plate 24, and the air blown by the air inlet 8 is blown into the air cavity 19 through the openings 18 on the vertical plate 22 and the horizontal plate 24.
When in use, the circuit board is placed in the circuit board bracket, and is supported by the support rod 20; pulling out the supporting plate 7, inserting a circuit board bracket on the supporting plate 7, fully inserting the circuit board bracket on the supporting plate 7, pushing the supporting plate 7 into the drying chamber 6, arranging a door, starting the device, enabling air in the drying chamber 6 to enter the air return chamber 4 through the air outlet 3, filtering pollutants in the air through the filter screen 2, enabling the air to enter the air dryer 14 to remove moisture, conveying the air to the electrostatic dust collector 11 through the fan 12, enabling the air from the electrostatic dust collector 11 to enter the air inlet chamber 9, heating the air through the electric heating wire 10, and blowing the air into the drying chamber 6 through the air inlet 8 to form internal airflow circulation; one part of the air blown out from the air inlet 8 is directly blown through the two sides of the circuit board, the other part of the air is blown to the openings 18 of the vertical plate 22 and the horizontal plate 24 of the circuit board bracket and enters the air cavity 19, and the air is blown to the surface of the circuit board from the circular arc plate 17 under the blocking of the plurality of air guide sheets 25, so that the moisture on the circuit board is evaporated and is conveyed into the air return chamber 4 for circulation; the air blown out by the electrostatic dust collector 11 is blown to the surface of the circuit board, so that the static electricity on the surface of the circuit board can be eliminated, and the pollutants such as dust on the surface of the circuit board are blown off easily and blown into the air return chamber 4 to be filtered by the filter screen 2.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A circuit board drying device is characterized by comprising a case, a blowing unit and a placing frame unit, wherein the blowing unit and the placing frame unit are arranged in the case;
an air inlet chamber, an air return chamber, a drying chamber and an equipment chamber are arranged in the case; an air inlet and an air outlet are arranged on the drying chamber, the air inlet is communicated with the air inlet chamber, and the air outlet is communicated with the air return chamber;
an air dryer, a fan and an electrostatic dust collector are arranged in the equipment room; the fan is respectively communicated with the air dryer and the electrostatic dust collector; the air dryer is communicated with the air return chamber; the electrostatic dust collector is communicated with the air inlet chamber; the heating wire is fixedly arranged in the air inlet chamber;
the placing frame unit is fixed in the drying chamber; the placing rack unit comprises a base and a plurality of circuit board brackets; the circuit board bracket is movably arranged on the base; the circuit board bracket comprises a horizontal plate and two vertical plates which are integrally formed; the vertical plate is fixed on the horizontal plate; a support rod is fixedly arranged between the two vertical plates; the vertical plate and the horizontal plate are both provided with an air cavity and an opening; the opening of the vertical plate and the opening of the horizontal plate are positioned on the same side; the upper end of the horizontal plate is provided with a first rectangular hole communicated with the air cavity; a second rectangular hole communicated with the air cavity is formed in the side face of the vertical plate; the air guide plate also comprises a plurality of air guide plates; the air deflectors are respectively fixed in the first rectangular hole and the second rectangular hole; the air deflector comprises a plurality of arc plates and an air inducing sheet; the circular arc plate is fixed in the first rectangular hole and the second rectangular hole, and the air inducing piece is arranged in the air cavity; one end of the air inducing piece is fixed on the arc plate, the other end of the air inducing piece extends towards the end close to the opening, and the length of the air inducing piece is gradually reduced from the side close to the opening to the side far away from the opening.
2. The circuit board drying device of claim 1, wherein the base comprises a bracket and a supporting plate; the bracket is fixed in the drying chamber; the supporting plate is movably arranged on the bracket; the supporting plate is provided with a slot; and the horizontal plate is fixedly provided with a plug board matched with the slot.
3. The circuit board drying device of claim 2, wherein the support is fixedly provided with a slide rail, the support plate is fixedly provided with a slide block, and the slide block is movably arranged in the slide rail.
4. The circuit board drying device of claim 1, wherein the supporting rod is fixedly provided with a protective sleeve.
5. The circuit board drying device of claim 1, wherein a plurality of partition plates are fixedly arranged in the return air chamber, and a filter screen is arranged on each partition plate; the meshes of the filter screens are gradually reduced from top to bottom.
6. The circuit board drying device of claim 2, wherein a plurality of circuit board brackets are arranged on the supporting plate in parallel, and the openings of the vertical plate and the horizontal plate are both arranged towards the air inlet.
7. The circuit board drying device of claim 6, wherein the air inlet is a rectangular opening; the air inlets are provided with a plurality of air inlets which respectively correspond to the openings of the vertical plate and the horizontal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111035469.5A CN113465324A (en) | 2021-09-06 | 2021-09-06 | Circuit board drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111035469.5A CN113465324A (en) | 2021-09-06 | 2021-09-06 | Circuit board drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113465324A true CN113465324A (en) | 2021-10-01 |
Family
ID=77867546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111035469.5A Pending CN113465324A (en) | 2021-09-06 | 2021-09-06 | Circuit board drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113465324A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207197242U (en) * | 2017-09-21 | 2018-04-06 | 青海绿草地新能源科技有限公司 | A kind of lithium battery drying support |
| CN207849978U (en) * | 2017-11-06 | 2018-09-11 | 江毓铭 | A kind of multiple step drainage air-distribution device, drying room and dryer |
| CN208365970U (en) * | 2018-06-26 | 2019-01-11 | 四川超声印制板有限公司 | A kind of pcb board automatic drier |
| CN208504893U (en) * | 2018-06-20 | 2019-02-15 | 青岛新纪元检测评价有限公司 | A kind of air dry oven |
| CN208720661U (en) * | 2018-08-22 | 2019-04-09 | 山东佐耀智能装备股份有限公司 | A kind of air-energy dryer |
| CN210242219U (en) * | 2019-08-12 | 2020-04-03 | 临朐县钰坤机械设备厂 | Fixed air distribution plate type drying box |
| CN210279491U (en) * | 2018-12-24 | 2020-04-10 | 淮安尚研电子科技有限公司 | Dust collector for intelligent household electrical appliances electronic production |
| CN212109245U (en) * | 2019-12-13 | 2020-12-08 | 奥士康科技股份有限公司 | Quick drying equipment is used in PCB board palm ization production |
| CN113007981A (en) * | 2019-12-19 | 2021-06-22 | 山东瑞海自动化科技有限公司 | Drying room with dry and wet gas separation function |
-
2021
- 2021-09-06 CN CN202111035469.5A patent/CN113465324A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207197242U (en) * | 2017-09-21 | 2018-04-06 | 青海绿草地新能源科技有限公司 | A kind of lithium battery drying support |
| CN207849978U (en) * | 2017-11-06 | 2018-09-11 | 江毓铭 | A kind of multiple step drainage air-distribution device, drying room and dryer |
| CN208504893U (en) * | 2018-06-20 | 2019-02-15 | 青岛新纪元检测评价有限公司 | A kind of air dry oven |
| CN208365970U (en) * | 2018-06-26 | 2019-01-11 | 四川超声印制板有限公司 | A kind of pcb board automatic drier |
| CN208720661U (en) * | 2018-08-22 | 2019-04-09 | 山东佐耀智能装备股份有限公司 | A kind of air-energy dryer |
| CN210279491U (en) * | 2018-12-24 | 2020-04-10 | 淮安尚研电子科技有限公司 | Dust collector for intelligent household electrical appliances electronic production |
| CN210242219U (en) * | 2019-08-12 | 2020-04-03 | 临朐县钰坤机械设备厂 | Fixed air distribution plate type drying box |
| CN212109245U (en) * | 2019-12-13 | 2020-12-08 | 奥士康科技股份有限公司 | Quick drying equipment is used in PCB board palm ization production |
| CN113007981A (en) * | 2019-12-19 | 2021-06-22 | 山东瑞海自动化科技有限公司 | Drying room with dry and wet gas separation function |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211001 |
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| RJ01 | Rejection of invention patent application after publication |