Flux recovery device and soldering device

Patent metadata

Field	Value
Publication number	US-9744613-B2
Application number	US-201415033258-A
Country	US
Kind code	B2
Filing date	Jun 13, 2014
Priority date	Oct 31, 2013
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

A flux recovery device that recovers a flux component from a gaseous mixture. The flux recovery device includes a first water spray unit that sprays water into a gaseous mixture containing the flux component, a separation unit that includes an introduction port for introducing the gaseous mixture into which water is sprayed from the first water spray unit, and a second water spray unit that forms a precipitation flow inside of the separation unit. The separation unit uses a swirling flow to separate the flux component from the gaseous mixture. A condensation unit cools water vapor generated in the separation unit to change the water vapor to water droplets, thereby removing the water vapor. Water vapor generated in a separation unit is cooled by a condensation unit, recovered as water droplets, and reused.

First claim

The invention claimed is:

1. A flux recovery device that recovers a flux component from a gaseous mixture containing the flux component, the flux recovery device comprising:
a first water spray unit that sprays water into the gaseous mixture;
a separation unit that includes an introduction port for introducing the gaseous mixture, the separation unit using a swirling flow to separate the flux component from the gaseous mixture;
a second water spray unit that forms a precipitation flow inside of the separation unit; and
a condensation unit that removes water vapor generated in the separation unit.

2. The flux recovery device according to claim 1 , wherein the separation unit comprises:
a cylindrical body for separation of the flux component, the cylindrical body including an introduction portion in an upper side portion thereof, an opening in an upper portion thereof, and a conical portion in a lower portion thereof; and
a cover engaged with the opening of the cylindrical body, wherein
the cover includes a disc-shaped body portion,
an exhaust cylindrical portion having a predetermined length passes through the body portion,
the conical portion includes a drain port,
when the gaseous mixture is taken into the introduction portion from a tangent direction of the cylindrical body, the flux component and water confluent with the precipitation flow formed on an inner side of the cylindrical body by the second water spray unit by means of the swirling flow formed by the first water spray unit are discharged from the drain port, and
the cylindrical portion takes gas separated from the gaseous mixture at one end and exhausts the gas from the other end.

3. The flux recovery device according to claim 1 , wherein
the first water spray unit has a nozzle configured to spray the water in a conical or circular sector shape, and
the second water spray unit includes an annular pipe having a plurality of blow-off ports, the annular pipe being configured to radially spray the water.

4. The flux recovery device according to claim 1 , further comprising a water cleaner configured to clean water discharged from the separation unit.

5. The flux recovery device according to claim 4 , wherein the water cleaner comprises an ozonation unit and an activated carbon filter.

6. The flux recovery device according to claim 1 , further comprising:
a water supply unit that supplies water to the first water spray unit and the second water spray unit; and
a cooling unit that cools water of the water supply unit.

7. The flux recovery device according to claim 4 , wherein
the condensation unit is connected to the water cleaner, and water recovered by the condensation unit is supplied to the water cleaner.

8. A soldering device comprising:
a soldering unit; and
the flux recovery device according to claim 1 , the flux recovery device being configured to recover the flux component from the gaseous mixture containing the flux component generated in the soldering unit.

9. The flux recovery device according to claim 2 , wherein
the first water spray unit has a nozzle configured to spray the water in a conical or circular sector shape, and
the second water spray unit includes an annular pipe having a plurality of blow-off ports, the annular pipe being configured to radially spray the water.

10. The flux recovery device according to claim 2 , further comprising a water cleaner configured to clean water discharged from the separation unit.

11. The flux recovery device according to claim 3 , further comprising a water cleaner configured to clean water discharged from the separation unit.

12. The flux recovery device according to claim 2 , further comprising:
a water supply unit that supplies water to the first water spray unit and the second water spray unit; and
a cooling unit that cools water of the water supply unit.

13. The flux recovery device according to claim 3 , further comprising:
a water supply unit that supplies water to the first water spray unit and the second water spray unit; and
a cooling unit that cools water of the water supply unit.

14. The flux recovery device according to claim 4 , further comprising:
a water supply unit that supplies water to the first water spray unit and the second water spray unit; and
a cooling unit that cools water of the water supply unit.

15. The flux recovery device according to claim 5 , further comprising:
a water supply unit that supplies water to the first water spray unit and the second water spray unit; and
a cooling unit that cools water of the water supply unit.

16. The flux recovery device according to claim 5 , wherein
the condensation unit is connected to the water cleaner, and water recovered by the condensation unit is supplied to the water cleaner.

17. The flux recovery device according to claim 6 , wherein
the condensation unit is connected to the water cleaner, and water recovered by the condensation unit is supplied to the water cleaner.

Assignees

• Senju Metal Industry Co

Inventors

• Hiyama Tsutomu
• Saito Yuta

Classifications

• B23K3/0653

  with wave generating means, e.g. nozzles, jets, fountains · CPC title

• B23K2101/42

  Printed circuits · CPC title

• B01D53/265

  by refrigeration (condensation) · CPC title

• B23K1/203

  Fluxing, i.e. applying flux onto surfaces · CPC title

• B23K35/362

  Selection of compositions of fluxes (B23K35/365, B23K35/368 take precedence) · CPC title