US20230035154A1 - Warpage suppressing reflow oven - Google Patents
Warpage suppressing reflow oven Download PDFInfo
- Publication number
- US20230035154A1 US20230035154A1 US17/547,326 US202117547326A US2023035154A1 US 20230035154 A1 US20230035154 A1 US 20230035154A1 US 202117547326 A US202117547326 A US 202117547326A US 2023035154 A1 US2023035154 A1 US 2023035154A1
- Authority
- US
- United States
- Prior art keywords
- downdraft
- oven
- steel plate
- reflow
- disposed
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 239000000969 carrier Substances 0.000 claims abstract description 18
- 239000000428 dust Substances 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 238000005476 soldering Methods 0.000 abstract description 28
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 229910000679 solder Inorganic materials 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
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
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/0061—Tools for holding the circuit boards during processing; handling transport of printed circuit boards
- H05K13/0069—Holders for printed circuit boards
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- 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
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work
-
- 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
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/04—Mounting of components, e.g. of leadless components
- H05K13/046—Surface mounting
- H05K13/0465—Surface mounting by soldering
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/42—Printed circuits
Definitions
- the present invention belongs to the technical field of reflow ovens, and more particularly, technically provides a warpage suppressing reflow oven, which is equipped with a plurality of downdraft modules that cooperate with air extractors and pipelines to generate downdraft acting forces; and the downdraft acting forces are transferred to the bottom surfaces of moving products, so that the products are flatly attached to universal perforated carriers for soldering without deformation, thereby avoiding soldering defects caused by deformation.
- the reflow soldering is soldering by heating of a reflow oven.
- the reflow oven is a heating oven.
- the prior art utilizes a pressure difference caused by unequal air speeds above and below a chain belt to press the carrier plates so as to flatten the warping carrier plate.
- a main objective of the present invention is to provide a warpage suppressing reflow oven, which is equipped with a plurality of downdraft modules that cooperate with air extractors and pipelines to generate downdraft acting forces; the downdraft acting forces are transferred to the bottom surfaces of moving products, so that the products are flatly attached to universal perforated carriers for soldering without deformation, thereby avoiding soldering defects caused by deformation.
- the present invention provides a warpage suppressing reflow oven, which includes a reflow oven body, where a reflow-oven inner oven is disposed in the reflow oven body; an openable reflow-oven upper oven is disposed on the reflow oven body; the reflow oven is divided into a preheating area, a reflow soldering area and a cooling area; primarily, a perforated steel plate circulating device is disposed at the reflow-oven inner oven; the perforated steel plate circulating device includes a perforated steel plate; the length of the perforated steel plate is determined by the number of heating and cooling areas; the perforated steel plate is looped to form an upper panel and a lower panel; a plurality of downdraft modules are arranged in the perforated steel plate; the number of the downdraft modules is determined according to the required number of heating and cooling areas of the reflow oven; the downdraft modules can generate downdraft acting forces toward the upper panel of the
- the downdraft modules Under actuation of the air extractors, the downdraft modules generate downdraft acting forces; and the downdraft acting forces reach the bottom surfaces of the products via the moving steel plate holes and carrier holes, so that the products are flatly attached to the universal perforated carriers without warpage in a heat soldering process, thereby achieving more uniform heating of the products and effectively improving the yield of reflow soldering operations.
- more than one independent compartment is disposed in the downdraft module; and the more than one independent compartment is respectively communicated with corresponding one of the pipelines.
- an in-built plate is sealed above the independent compartments of the downdraft module; a plurality of through holes are made in the in-built plate; an outer panel is fixed above the in-built plate; a plurality of through plate holes are made in the outer panel; and the plate holes, the through holes and the independent compartments are communicated with each other.
- At least one heater is disposed in the independent compartment of the downdraft module, so as to ensure that the in-built plate and the outer panel are maintained above certain temperature.
- At least one filter and at least one sensor are disposed between the downdraft module and the air extractor, so as to ensure that the pipelines connecting the downdraft module and the air extractor are unblocked to maintain a product adsorption capacity.
- the senor can be a flowmeter or a pressure gauge; the flowmeter is used for sensing a gas flow change of the pipelines; or the pressure gauge is used for sensing a gas pressure change of the pipelines.
- At least one dust collector is disposed on the inner side of the perforated steel plate circulating device.
- FIG. 1 is a stereoscopic diagram of the open state of the upper oven of an embodiment of the present invention.
- FIG. 2 is a stereoscopic diagram of an embodiment of the present invention.
- FIG. 3 is a front-view plane diagram of an embodiment of the present invention.
- FIG. 4 is a front-view stereoscopic diagram of the perforated steel plate circulating device of an embodiment of the present invention.
- FIG. 5 is a rear-view stereoscopic diagram of the perforated steel plate circulating device of an embodiment of the present invention.
- FIG. 6 is an exploded stereoscopic diagram of the downdraft module of an embodiment of the present invention.
- FIG. 7 is a stereoscopic diagram of the downdraft module of an embodiment of the present invention.
- FIG. 8 is a partial section-view plane diagram of an embodiment of the present invention.
- FIG. 9 is a partial section-view plane action diagram of an embodiment of the present invention.
- the present invention provides a warpage suppressing reflow oven.
- the present invention provides a warpage suppressing reflow oven, which includes:
- a reflow oven body 10 a reflow-oven inner oven 20 is disposed in the reflow oven body 10 ; and an openable reflow-oven upper oven 30 is disposed on the reflow oven body 10 .
- the warpage suppressing reflow oven is characterized in:
- a perforated steel plate circulating device 40 is disposed at the reflow-oven inner oven 20 ;
- the perforated steel plate circulating device 40 includes a perforated steel plate 41 ; a plurality of through steel plate holes 413 are made in the perforated steel plate 41 ;
- the perforated steel plate 41 makes circular conveying actions;
- the perforated steel plate 41 is looped to form an upper panel 411 and a lower panel 412 ;
- a plurality of universal perforated carriers 50 are disposed on the upper panel 411 ; more than one product 80 is disposed on the universal perforated carriers 50 ;
- a plurality of through carrier holes 51 are made in the universal perforated carrier 50 ;
- a plurality of downdraft modules 60 are arranged in the perforated steel plate 41 ; the downdraft modules 60 can generate downdraft acting forces toward the upper panel 411 of the moving perforated steel plate 41 , and the downdraft acting forces reach the bottom surfaces of the products 80 via the
- the air extractor 70 can be a pump or a blower. Under actuation of the air extractors 70 , the downdraft modules 60 generate downdraft acting forces; and the downdraft acting forces can be transferred to the bottom surfaces of the products 80 .
- a plurality of products 80 and a plurality of universal perforated carriers 50 are arranged on the upper panel 411 of the perforated steel plate 41 ; under actuation of the air extractors 70 , the downdraft modules 60 , the steel plate holes 413 and the carrier holes 51 generate downdraft acting forces; and the downdraft acting forces adsorb the products 80 so that the products 80 are flatly attached to the universal perforated carriers 50 without warpage in a heating process, thereby effectively improving the yield of reflow soldering operations.
- more than one independent compartment 62 is disposed in the downdraft module 60 ; and the more than one independent compartment 62 is respectively communicated with corresponding one of the pipelines 61 .
- an in-built plate 63 is sealed above the independent compartments 62 of the downdraft module 60 ; a plurality of through holes 632 are made in the in-built plate 63 ; an outer panel 64 is fixed above the in-built plate 63 ; a plurality of through plate holes 641 are made in the outer panel 64 ; and the plate holes 641 , the through holes 632 and the independent compartments 62 are communicated with each other.
- At least one heater 65 is disposed in the downdraft module 60 , so as to ensure that the in-built plate 63 and the outer panel 64 are maintained above certain temperature; and the at least one heater 65 is disposed in the independent compartment 62 .
- At least one filter 71 and at least one sensor 72 are disposed between the downdraft module 60 and the air extractor 70 , so as to ensure that the pipelines 61 connecting the downdraft module 60 and the air extractor 70 are unblocked to maintain a product adsorption capacity.
- the filter 71 has an effect of filtering pollutants or can also have a cooling function, and captures volatile pollution gases generated in reflow soldering operations by means of condensation; and the sensor 72 can be a flowmeter or a pressure gauge; the flowmeter is used for sensing a gas flow change of the pipelines 61 ; or the pressure gauge is used for sensing a gas pressure change of the pipelines 61 .
- At least one dust collector 73 is disposed on the inner side of the perforated steel plate circulating device 40 ; and the at least one dust collector 73 is used for clearing away the dust particles generated by friction between the inner side of the upper panel 411 of the perforated steel plate circulating device 40 and the outer panel 64 of the downdraft module 60 .
- the present invention provides a warpage suppressing reflow oven, where the reflow oven can be divided into a preheating area, a reflow soldering area and a cooling area; the upper panel 411 of the perforated steel plate 41 carriers and conveys universal perforated carriers 50 and products 80 to sequentially pass through the preheating area, the reflow soldering area and the cooling area; and without a downward acting force, the products 80 will deform when passing through the heating area, and the deformation will lead to soldering defects.
- a plurality of downdraft modules 60 are arranged in the perforated steel plate 41 ; and a plurality of through steel plate holes 413 and through carrier holes 51 are respectively made in the perforated steel plate 41 and the universal perforated carriers 50 .
- the downdraft acting forces of the downdraft modules 60 reach the bottom surfaces of the products 80 via the moving steel plate holes 413 and carrier holes 51 , so that the products 80 are flatly attached to the universal perforated carriers 50 without warpage and are always kept in a flat state in a mobile heat soldering process, to achieve uniform heating and thus the best soldering effect.
- the warpage suppressing reflow oven of the present invention is indeed the first of its kind and meets the requirement for novelty of an invention patent; and its overall innovative design meets the requirement for advancement of an invention patent.
- the warpage suppressing reflow oven is equipped with a plurality of downdraft modules that cooperate with air extractors and pipelines to generate downdraft acting forces; the downdraft acting forces are transferred to the bottom surfaces of moving products via the steel plate holes and carrier holes, so that the products are flatly attached to the universal perforated carriers for soldering without deformation, thereby avoiding soldering defects caused by deformation, which meets the requirement for good industrial applicability.
- the present invention provides a warpage suppressing reflow oven, which indeed achieves all purposes of the present invention. Moreover, the spatial pattern of its composite structure is unavailable in the products of the same kind, nor is disclosed prior to the application. Thus, the regulations of the patent law are met, and an application is filed in accordance with the law.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Inorganic Insulating Materials (AREA)
- Table Devices Or Equipment (AREA)
Abstract
Disclosed is a warpage suppressing reflow oven, which comprises a reflow oven body, where a perforated steel plate circulating device comprising a perforated steel plate is disposed at a reflow-oven inner oven. A plurality of downdraft modules is arranged in the perforated steel plate, and the downdraft acting forces thereof face the upper panel. More than one air extractor is communicated with the plurality of downdraft modules via a plurality of pipelines. Under actuation of the air extractors, the downdraft modules generate downdraft acting forces to the bottom surfaces of the products, so that the products are flatly attached to the universal perforated carriers without warpage in a heat soldering process. Thereby, more uniform heating of the products and better contact of solder joints and effectively improving the yield of reflow soldering operations are achieved.
Description
- The present application claims the benefit of Taiwanese Patent Application No. 110127665 filed on Jul. 28, 2021, the contents of which are incorporated herein by reference in their entirety.
- The present invention belongs to the technical field of reflow ovens, and more particularly, technically provides a warpage suppressing reflow oven, which is equipped with a plurality of downdraft modules that cooperate with air extractors and pipelines to generate downdraft acting forces; and the downdraft acting forces are transferred to the bottom surfaces of moving products, so that the products are flatly attached to universal perforated carriers for soldering without deformation, thereby avoiding soldering defects caused by deformation.
- The booming development of the electronics industry is largely because of the contributions made by the development and precision of the SMD (Surface Mounted Device) technology, and reflow soldering is one of the most important technologies in the SMD technology. It is known that the reflow soldering is soldering by heating of a reflow oven. The reflow oven is a heating oven. When a circuit board equipped with electronic elements is carried into the oven by a carrying device formed by a chain conveyor, through heating by spraying hot air and the like, soldering tin is molten for soldering of the circuit board and the electronic elements. When the products of the reflow oven such as carrier plates like PCB (Printed circuit board) deform due to the temperature, follow-up soldering operations often result in poor soldering. Moreover, since the carrier plates like PCB are made even thinner, the problem of deformation of the carrier plates like PCB happens more frequently due to the high temperature. Therefore, it is very important to control the carrier plates like PCB to avoid deformation during the reflow soldering. To address the problem, the prior art utilizes a pressure difference caused by unequal air speeds above and below a chain belt to press the carrier plates so as to flatten the warping carrier plate. But the force of such pressure difference may be too small for some carrier plates that are relatively hard or warp excessively (a large pressure difference may lead to a high air speed and thus influence the product quality), and consequently, a tin ball below a wafer does not contact well with the tin or golden finger on the carrier plate, causing a loss in yield in reflow soldering operations (false soldering or failure in contact with melting bridging due to warpage). So, it is really necessary to improve the prior art.
- Therefore, with respect to the problems of the known reflow oven structure, to develop a more ideal and practical innovative structure is an urgent hope of consumers as well as the target and direction that relevant practitioners must strive to achieve and follow through research and development.
- In view of this, based on the inventor's years of experiences in the manufacturing processes of relevant products as well as in equipment development and design, and through detailed design and prudent assessment regarding the target, the present invention with real practicability is obtained finally.
- A main objective of the present invention is to provide a warpage suppressing reflow oven, which is equipped with a plurality of downdraft modules that cooperate with air extractors and pipelines to generate downdraft acting forces; the downdraft acting forces are transferred to the bottom surfaces of moving products, so that the products are flatly attached to universal perforated carriers for soldering without deformation, thereby avoiding soldering defects caused by deformation.
- To achieve the objective, the present invention provides a warpage suppressing reflow oven, which includes a reflow oven body, where a reflow-oven inner oven is disposed in the reflow oven body; an openable reflow-oven upper oven is disposed on the reflow oven body; the reflow oven is divided into a preheating area, a reflow soldering area and a cooling area; primarily, a perforated steel plate circulating device is disposed at the reflow-oven inner oven; the perforated steel plate circulating device includes a perforated steel plate; the length of the perforated steel plate is determined by the number of heating and cooling areas; the perforated steel plate is looped to form an upper panel and a lower panel; a plurality of downdraft modules are arranged in the perforated steel plate; the number of the downdraft modules is determined according to the required number of heating and cooling areas of the reflow oven; the downdraft modules can generate downdraft acting forces toward the upper panel of the moving perforated steel plate; more than one air extractor is communicated with the plurality of downdraft modules via a plurality of pipelines; accordingly, a plurality of products and a plurality of universal perforated carriers are arranged on the upper panel of the perforated steel plate; and the universal perforated carriers do not need to be replaced for different arrangements of the products. Under actuation of the air extractors, the downdraft modules generate downdraft acting forces; and the downdraft acting forces reach the bottom surfaces of the products via the moving steel plate holes and carrier holes, so that the products are flatly attached to the universal perforated carriers without warpage in a heat soldering process, thereby achieving more uniform heating of the products and effectively improving the yield of reflow soldering operations.
- In the warpage suppressing reflow oven, more than one independent compartment is disposed in the downdraft module; and the more than one independent compartment is respectively communicated with corresponding one of the pipelines.
- In the warpage suppressing reflow oven, an in-built plate is sealed above the independent compartments of the downdraft module; a plurality of through holes are made in the in-built plate; an outer panel is fixed above the in-built plate; a plurality of through plate holes are made in the outer panel; and the plate holes, the through holes and the independent compartments are communicated with each other.
- In the warpage suppressing reflow oven, at least one heater is disposed in the independent compartment of the downdraft module, so as to ensure that the in-built plate and the outer panel are maintained above certain temperature.
- In the warpage suppressing reflow oven, at least one filter and at least one sensor are disposed between the downdraft module and the air extractor, so as to ensure that the pipelines connecting the downdraft module and the air extractor are unblocked to maintain a product adsorption capacity.
- In the warpage suppressing reflow oven, the sensor can be a flowmeter or a pressure gauge; the flowmeter is used for sensing a gas flow change of the pipelines; or the pressure gauge is used for sensing a gas pressure change of the pipelines.
- In the warpage suppressing reflow oven, at least one dust collector is disposed on the inner side of the perforated steel plate circulating device.
- The technologies, means and effects of the present invention are described hereafter in detail using a preferred embodiment and in combination with drawings; and it is believed that the purposes, structures and characteristics of the present invention can thus be understood deeply and specifically.
-
FIG. 1 is a stereoscopic diagram of the open state of the upper oven of an embodiment of the present invention. -
FIG. 2 is a stereoscopic diagram of an embodiment of the present invention. -
FIG. 3 is a front-view plane diagram of an embodiment of the present invention. -
FIG. 4 is a front-view stereoscopic diagram of the perforated steel plate circulating device of an embodiment of the present invention. -
FIG. 5 is a rear-view stereoscopic diagram of the perforated steel plate circulating device of an embodiment of the present invention. -
FIG. 6 is an exploded stereoscopic diagram of the downdraft module of an embodiment of the present invention. -
FIG. 7 is a stereoscopic diagram of the downdraft module of an embodiment of the present invention. -
FIG. 8 is a partial section-view plane diagram of an embodiment of the present invention. -
FIG. 9 is a partial section-view plane action diagram of an embodiment of the present invention. - The present invention provides a warpage suppressing reflow oven.
- For further understanding and recognition by the review committee, the purposes, characteristics and effects of the present invention are described below in detail in combination with embodiments and drawings:
- As shown in
FIGS. 1-5 , the present invention provides a warpage suppressing reflow oven, which includes: - a
reflow oven body 10; a reflow-oveninner oven 20 is disposed in thereflow oven body 10; and an openable reflow-ovenupper oven 30 is disposed on thereflow oven body 10. The warpage suppressing reflow oven is characterized in: - a perforated steel
plate circulating device 40 is disposed at the reflow-oveninner oven 20; the perforated steelplate circulating device 40 includes a perforatedsteel plate 41; a plurality of throughsteel plate holes 413 are made in theperforated steel plate 41; the perforatedsteel plate 41 makes circular conveying actions; the perforatedsteel plate 41 is looped to form anupper panel 411 and alower panel 412; a plurality of universal perforatedcarriers 50 are disposed on theupper panel 411; more than oneproduct 80 is disposed on the universal perforatedcarriers 50; a plurality of throughcarrier holes 51 are made in the universal perforatedcarrier 50; a plurality ofdowndraft modules 60 are arranged in theperforated steel plate 41; thedowndraft modules 60 can generate downdraft acting forces toward theupper panel 411 of the moving perforatedsteel plate 41, and the downdraft acting forces reach the bottom surfaces of theproducts 80 via thesteel plate holes 413 and thecarrier holes 51; more than one air extractor 70 (as shown inFIGS. 8 and 9 ) is communicated with the plurality ofdowndraft modules 60 via a plurality ofpipelines 61; and theair extractor 70 can be a pump or a blower. Under actuation of theair extractors 70, thedowndraft modules 60 generate downdraft acting forces; and the downdraft acting forces can be transferred to the bottom surfaces of theproducts 80. Accordingly, a plurality ofproducts 80 and a plurality of universal perforatedcarriers 50 are arranged on theupper panel 411 of theperforated steel plate 41; under actuation of theair extractors 70, thedowndraft modules 60, thesteel plate holes 413 and thecarrier holes 51 generate downdraft acting forces; and the downdraft acting forces adsorb theproducts 80 so that theproducts 80 are flatly attached to the universal perforatedcarriers 50 without warpage in a heating process, thereby effectively improving the yield of reflow soldering operations. - As shown in
FIGS. 5-9 , in the warpage suppressing reflow oven, more than oneindependent compartment 62 is disposed in thedowndraft module 60; and the more than oneindependent compartment 62 is respectively communicated with corresponding one of thepipelines 61. - As shown in
FIGS. 5-9 , in the warpage suppressing reflow oven, an in-builtplate 63 is sealed above theindependent compartments 62 of thedowndraft module 60; a plurality of throughholes 632 are made in the in-builtplate 63; anouter panel 64 is fixed above the in-builtplate 63; a plurality of throughplate holes 641 are made in theouter panel 64; and theplate holes 641, the throughholes 632 and theindependent compartments 62 are communicated with each other. - As shown in
FIGS. 5-9 , in the warpage suppressing reflow oven, at least oneheater 65 is disposed in thedowndraft module 60, so as to ensure that the in-builtplate 63 and theouter panel 64 are maintained above certain temperature; and the at least oneheater 65 is disposed in theindependent compartment 62. - As shown in
FIGS. 5-9 , in the warpage suppressing reflow oven, at least onefilter 71 and at least onesensor 72 are disposed between thedowndraft module 60 and theair extractor 70, so as to ensure that thepipelines 61 connecting thedowndraft module 60 and theair extractor 70 are unblocked to maintain a product adsorption capacity. Thefilter 71 has an effect of filtering pollutants or can also have a cooling function, and captures volatile pollution gases generated in reflow soldering operations by means of condensation; and thesensor 72 can be a flowmeter or a pressure gauge; the flowmeter is used for sensing a gas flow change of thepipelines 61; or the pressure gauge is used for sensing a gas pressure change of thepipelines 61. - As shown in
FIGS. 8 and 9 , in the warpage suppressing reflow oven, at least onedust collector 73 is disposed on the inner side of the perforated steelplate circulating device 40; and the at least onedust collector 73 is used for clearing away the dust particles generated by friction between the inner side of theupper panel 411 of the perforated steelplate circulating device 40 and theouter panel 64 of thedowndraft module 60. - As shown in
FIGS. 1-9 , the present invention provides a warpage suppressing reflow oven, where the reflow oven can be divided into a preheating area, a reflow soldering area and a cooling area; theupper panel 411 of theperforated steel plate 41 carriers and conveys universal perforatedcarriers 50 andproducts 80 to sequentially pass through the preheating area, the reflow soldering area and the cooling area; and without a downward acting force, theproducts 80 will deform when passing through the heating area, and the deformation will lead to soldering defects. Therefore, a plurality ofdowndraft modules 60 are arranged in theperforated steel plate 41; and a plurality of throughsteel plate holes 413 and throughcarrier holes 51 are respectively made in the perforatedsteel plate 41 and the universal perforatedcarriers 50. By doing so, the downdraft acting forces of thedowndraft modules 60 reach the bottom surfaces of theproducts 80 via the movingsteel plate holes 413 andcarrier holes 51, so that theproducts 80 are flatly attached to the universal perforatedcarriers 50 without warpage and are always kept in a flat state in a mobile heat soldering process, to achieve uniform heating and thus the best soldering effect. - As shown above, the warpage suppressing reflow oven of the present invention is indeed the first of its kind and meets the requirement for novelty of an invention patent; and its overall innovative design meets the requirement for advancement of an invention patent. Moreover, the warpage suppressing reflow oven is equipped with a plurality of downdraft modules that cooperate with air extractors and pipelines to generate downdraft acting forces; the downdraft acting forces are transferred to the bottom surfaces of moving products via the steel plate holes and carrier holes, so that the products are flatly attached to the universal perforated carriers for soldering without deformation, thereby avoiding soldering defects caused by deformation, which meets the requirement for good industrial applicability.
- The preferred embodiment of the present invention above is for specific description of the technical characteristics of the present invention. However, those skilled in the art can make changes and modifications to the present invention without departing from the spirit and principles of the present invention; and these changes and modifications shall all be included in the scope of the claims below.
- In conclusion, the present invention provides a warpage suppressing reflow oven, which indeed achieves all purposes of the present invention. Moreover, the spatial pattern of its composite structure is unavailable in the products of the same kind, nor is disclosed prior to the application. Thus, the regulations of the patent law are met, and an application is filed in accordance with the law.
-
- 10 Reflow oven body
- 20 Reflow-oven inner oven
- 30 Reflow-oven upper oven
- 40 Perforated steel plate circulating device
- 41 Perforated steel plate
- 411 Upper panel
- 412 Lower panel
- 413 Steel plate hole
- 50 Universal perforated carrier
- 51 Carrier hole
- 60 Downdraft module
- 61 Pipeline
- 62 Independent compartment
- 63 In-built plate
- 632 Through hole
- 64 Outer panel
- 641 Plate hole
- 65 Heater
- 70 Air extractor
- 71 Filter
- 72 Sensor
- 73 Dust collector
- 80 Product
Claims (10)
1. A warpage suppressing reflow oven, comprising:
a reflow oven body, a reflow-oven inner oven disposed in the reflow oven body, and an openable reflow-oven upper oven disposed on the reflow oven body, wherein:
a perforated steel plate circulating device is disposed at the reflow-oven inner oven; the perforated steel plate circulating device comprises a perforated steel plate; a plurality of through steel plate holes are made in the perforated steel plate; the perforated steel plate makes circular conveying actions; the perforated steel plate is looped to form an upper panel and a lower panel; a plurality of universal perforated carriers are disposed on the upper panel; more than one product is disposed on the universal perforated carriers; a plurality of through carrier holes are made in the universal perforated carrier; a plurality of downdraft modules are arranged in the perforated steel plate; the downdraft modules can generate downdraft acting forces toward the moving upper panel of the perforated steel plate, and the downdraft acting forces reach the bottom surfaces of the products via the steel plate holes and the carrier holes; more than one air extractor is communicated with the plurality of downdraft modules via a plurality of pipelines; under actuation of the air extractors, the downdraft modules generate downdraft acting forces; and the downdraft acting forces can be transferred to the bottom surfaces of the product, so that the products are flatly attached to the universal perforated carriers without warpage.
2. The warpage suppressing reflow oven of claim 1 , wherein more than one independent compartment is disposed in the downdraft module; and the more than one independent compartment is respectively communicated with corresponding one of the pipelines.
3. The warpage suppressing reflow oven of claim 2 , wherein an in-built plate is sealed above the independent compartments of the downdraft module; a plurality of through holes are made in the in-built plate; an outer panel is fixed above the in-built plate; a plurality of through plate holes are made in the outer panel; and the plate holes, the through holes and the independent compartments are communicated with each other.
4. The warpage suppressing reflow oven of claim 1 , wherein at least one heater is disposed in the downdraft module.
5. The warpage suppressing reflow oven of claim 2 , wherein at least one heater is disposed in the independent compartment.
6. The warpage suppressing reflow oven of claim 3 , wherein at least one heater is disposed in the independent compartment.
7. The warpage suppressing reflow oven of claim 1 , wherein at least one filter and at least one sensor are disposed between the downdraft module and the air extractor, so as to ensure that the pipelines connecting the downdraft module and the air extractor are unblocked to maintain a product adsorption capacity.
8. The warpage suppressing reflow oven of claim 7 , wherein the sensor can be a flowmeter or a pressure gauge.
9. The warpage suppressing reflow oven of claim 3 , wherein at least one dust collector is disposed on the inner side of the perforated steel plate circulating device; and the at least one dust collector is used for clearing away the dust particles generated by friction between the inner side of the upper panel and the downdraft module.
10. The warpage suppressing reflow oven of claim 1 , wherein the air extractor can be a pump or a blower.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW110127665A TWI769030B (en) | 2021-07-28 | 2021-07-28 | Warpage Suppression Reflow Oven |
TW110127665 | 2021-07-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20230035154A1 true US20230035154A1 (en) | 2023-02-02 |
US11589488B1 US11589488B1 (en) | 2023-02-21 |
Family
ID=83104197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/547,326 Active US11589488B1 (en) | 2021-07-28 | 2021-12-10 | Warpage suppressing reflow oven |
Country Status (3)
Country | Link |
---|---|
US (1) | US11589488B1 (en) |
CN (1) | CN115673460A (en) |
TW (1) | TWI769030B (en) |
Family Cites Families (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0741408B2 (en) * | 1990-07-23 | 1995-05-10 | 千住金属工業株式会社 | Reflow furnace and surface blowing type heater used therefor |
JP2902467B2 (en) * | 1990-09-19 | 1999-06-07 | 松下電器産業株式会社 | Reflow equipment |
NL1009214C2 (en) * | 1998-05-19 | 1999-12-07 | Soltec Bv | Reflow oven. |
JP2000307240A (en) * | 1999-04-23 | 2000-11-02 | Fuji Photo Film Co Ltd | Reflow device |
US7560064B1 (en) * | 2005-03-24 | 2009-07-14 | Owen Industries, Inc. | Downdraft exhaust cutting table |
TWI330057B (en) * | 2007-04-03 | 2010-09-01 | Compal Electronics Inc | Printed circuit board conveyer structure of reflow oven and reflow oven using the same |
CN101578012A (en) * | 2008-05-09 | 2009-11-11 | 佛山市顺德区顺达电脑厂有限公司 | Overwelding and rewelding furnace carrier |
JP2010278250A (en) * | 2009-05-28 | 2010-12-09 | Fujitsu Semiconductor Ltd | Method of manufacturing semiconductor device |
JP5688277B2 (en) * | 2010-12-01 | 2015-03-25 | アスリートFa株式会社 | Heating device and heating method |
TWM465220U (en) * | 2012-12-20 | 2013-11-11 | You-Cheng Du | Steam type reflow furnace |
JP6445229B2 (en) * | 2013-01-31 | 2018-12-26 | 株式会社タムラ製作所 | Reflow device |
JP6298987B2 (en) * | 2014-05-12 | 2018-03-28 | パナソニックIpマネジメント株式会社 | Screen printing device |
KR101675558B1 (en) * | 2015-01-26 | 2016-11-11 | 주식회사 티에스엠 | Reflow Soldering Machine with Anti-Warp Nozzle |
TWM508880U (en) * | 2015-02-02 | 2015-09-11 | yan-yi Chen | Carrier for box airtight reflow furnace |
CN205166094U (en) * | 2015-04-22 | 2016-04-20 | 十堰车驰工贸有限公司 | Burning furnace is baked over a slow fire to copper radiator solder brazing chain belt |
KR20170004503A (en) * | 2015-07-02 | 2017-01-11 | 삼성전자주식회사 | Reflow Apparatus |
CN205464672U (en) * | 2016-04-08 | 2016-08-17 | 库尔特机电设备(珠海)有限公司 | Reflow soldering machine |
CN206196162U (en) * | 2016-11-11 | 2017-05-24 | 尼得科艾莱希斯电子(中山)有限公司 | Solder printing device |
CN206196164U (en) * | 2016-11-11 | 2017-05-24 | 尼得科艾莱希斯电子(浙江)有限公司 | Solder printing device |
CN206196161U (en) * | 2016-11-11 | 2017-05-24 | 尼得科艾莱希斯电子(中山)有限公司 | Solder printing device |
CN107081497A (en) * | 2017-06-15 | 2017-08-22 | 江苏晟兴和金属板业有限公司 | Production line without glue aluminum cellular board |
TWI651148B (en) * | 2017-11-14 | 2019-02-21 | 廣化科技股份有限公司 | Vacuum welding furnace |
CN207592991U (en) * | 2017-12-01 | 2018-07-10 | 锐德热力设备(东莞)有限公司 | A kind of vacuum back-flow brazier that can collect waste heat |
CN207911144U (en) * | 2018-01-25 | 2018-09-25 | 东莞市创威自动化科技有限公司 | A kind of hot air type reflow soldering |
CN108200732B (en) * | 2018-01-25 | 2024-03-12 | 东莞市创威自动化科技有限公司 | Hot air type reflow soldering furnace |
JP7241286B2 (en) * | 2018-06-27 | 2023-03-17 | パナソニックIpマネジメント株式会社 | Reflow oven and soldering method |
CN209322982U (en) * | 2018-11-25 | 2019-08-30 | 醴陵市东方电子有限公司 | A kind of reducing gas protection soldering oven |
CN209647790U (en) * | 2019-01-21 | 2019-11-19 | 梅州市明眸电子科技有限公司 | A kind of double track refluxing unit that welding effect is good |
CN112077411A (en) * | 2019-06-15 | 2020-12-15 | 王定锋 | Reflow furnace with air conditioner |
CN112077412A (en) * | 2019-06-15 | 2020-12-15 | 王定锋 | Reflow furnace with cooling device |
CN110355440B (en) * | 2019-07-18 | 2021-04-06 | 安徽天通精电新科技有限公司 | Heat circulation type reflow furnace and operation method thereof |
CN110519940A (en) * | 2019-09-16 | 2019-11-29 | 宁波永恩电子科技有限公司 | Chip mounter |
CN212286195U (en) * | 2020-03-31 | 2021-01-05 | 广州金升阳科技有限公司 | Through hole reflow soldering device |
CN111673223A (en) * | 2020-07-15 | 2020-09-18 | 苏州桓旭半导体科技有限公司 | Continuous stepping type vacuum welding furnace |
CN212682730U (en) * | 2020-07-17 | 2021-03-12 | 杭州沛卓科技有限公司 | Reflow furnace |
US11865645B2 (en) * | 2020-11-12 | 2024-01-09 | Senju Metal Industry Co., Ltd. | Soldering apparatus |
CN213560397U (en) * | 2020-11-18 | 2021-06-29 | 锐德热力设备(东莞)有限公司 | Efficient and stable air reflow soldering furnace |
CN112437601A (en) * | 2020-11-18 | 2021-03-02 | 惠州市兴宏泰电子有限公司 | Chip mounting device of chip mounter |
CN213984522U (en) * | 2020-12-16 | 2021-08-17 | 北京智造空间科技有限公司 | Reflow furnace heat recovery device |
CN112872522A (en) * | 2021-01-11 | 2021-06-01 | 武汉倍普科技有限公司 | Reflow furnace temperature curve intelligent detection system |
CN113000971B (en) * | 2021-04-01 | 2022-06-03 | 重庆信恳科技有限公司 | Forced cooling reflow oven for processing electronic pcb (printed circuit board) and using method thereof |
CN216966558U (en) * | 2021-12-30 | 2022-07-15 | 潍坊诚拓机械有限公司 | Environment-friendly mesh belt brazing furnace |
CN114669822B (en) * | 2022-04-22 | 2022-11-11 | 鄂尔多斯市恒凯电器有限公司 | Soldering tin processing assembly line for miniature transformer |
-
2021
- 2021-07-28 TW TW110127665A patent/TWI769030B/en active
- 2021-11-19 CN CN202111391959.9A patent/CN115673460A/en active Pending
- 2021-12-10 US US17/547,326 patent/US11589488B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
TW202304624A (en) | 2023-02-01 |
TWI769030B (en) | 2022-06-21 |
CN115673460A (en) | 2023-02-03 |
US11589488B1 (en) | 2023-02-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7708183B2 (en) | Reflow solder oven with cooling diffuser | |
US11589488B1 (en) | Warpage suppressing reflow oven | |
CN102625596B (en) | Method for welding plug-in component on circuit board and welding system | |
US5911486A (en) | Combination product cooling and flux management apparatus | |
US8622278B1 (en) | Socket cover with heat flow for surface mount solder reflow | |
US8328067B2 (en) | Inert environment enclosure | |
MX2022014053A (en) | Soldering apparatus, in particular a reflow soldering apparatus with vent units provided laterally next to a process channel. | |
JP2709365B2 (en) | Vapor reflow soldering equipment | |
US7377775B2 (en) | Heating apparatus | |
JP3904955B2 (en) | Reflow soldering equipment | |
JP2002368500A (en) | Printed-wiring board inspection apparatus | |
CN104972191A (en) | Transmission heating equipment | |
JPH06164130A (en) | Reflow furnace for printed circuit board | |
JP3084942B2 (en) | Reflow equipment | |
JPH03118962A (en) | Vapor reflowing type soldering apparatus | |
JPS62148083A (en) | Vapor reflow type soldering device | |
CN205464914U (en) | Full -automatic fixed -position welding device | |
JP2018069264A (en) | Reflow device | |
JPH02187260A (en) | Reflow furnace utilizing hot blast | |
JPH038565A (en) | Reflow device | |
JP2020055018A (en) | Method for acquiring soldering temperature profile of surface mounting component and device for acquiring soldering temperature profile of surface mounting component | |
JP2018073902A (en) | Reflow device | |
CN206807890U (en) | Material fixing device | |
JPH08242075A (en) | Hot air blowoff heater | |
JP2008062296A (en) | Brazing furnace |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FEPP | Fee payment procedure |
Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
|
AS | Assignment |
Owner name: ABLEPRINT TECHNOLOGY CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HORNG, CHIH-HORNG;WU, HSU-WEN;LAI, CHI-CHIEH;SIGNING DATES FROM 20211203 TO 20211207;REEL/FRAME:058366/0919 |
|
FEPP | Fee payment procedure |
Free format text: ENTITY STATUS SET TO SMALL (ORIGINAL EVENT CODE: SMAL); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |