Patent ID: 8403199
Filing Date: 2013-03-26
Classification: B23K,H05K

Abstract:
1. A partial-jet-soldering device that applies molten solder partially onto a component-mounting member to solder an electronic component to the component-mounting member, the device comprising: a solder bath that has a solder-sending path and contains the molten solder; a solder-supplying portion that supplies the molten solder contained in the solder bath under a predetermined pressure to the solder-sending path; a first jet nozzle that has a predetermined solder-spouting area and connects the solder-sending path to spout the molten solder supplied from the solder-supplying portion under the predetermined pressure so that the solder rises by its surface tension; and a second jet nozzle that has a solder-spouting area more than that of the first jet nozzle and connects the solder-sending path to spout the molten solder supplied from the solder-supplying portion under the predetermined pressure, characterized in that the solder bath is composed of a container having a predetermined volume and an interior thereof is partitioned into a first section, a second section and a third section; the solder-sending path is positioned so that it is continuously communicated to the first, second and third sections in the interior of the container, at least the first section being positioned adjacent to the second section and the third section and allocated to a jet-soldering working area, nozzle bases being respectively positioned on the solder-sending paths of the first and third sections; the first jet nozzle is positioned on the nozzle base of the jet-soldering working area in the first section that is continuously communicated to the solder-sending path; the solder-supplying portion is positioned in the second section that is continuously communicated to the solder-sending path; the second jet nozzle is on the outside of the jet-soldering working area in the solder bath and is positioned on the nozzle base in the third section that is adjacent to the second section in which the solder-supplying portion is positioned; the first jet nozzle is separated from the second jet nozzle by an inner wall partitioning the first section from both the second section and the third section; and an axis part of the solder-supplying portion is at a greater distance from the first jet nozzle than from the second jet nozzle.