Reflow apparatus

A reflow apparatus comprising at least one heating unit, each of the at least one heating unit including:

• an air blower for circulating air;
• a partition for defining an air circulating path;
• at least a first slit heater and a second slit heater for heating a workpiece with the circulating air, the workpiece having a first surface and a second surface;
• and
• a furnace housing for accommodating the workpiece,
• wherein the air blower includes:
• a first fan for blowing the air toward the first surface of the workpiece,
• a second fan for blowing the air toward the second surface of the workpiece, and
• a motor for rotating the first fan and the second fan, wherein the motor has a rotation shaft provided above the workpiece in a perpendicular direction to workpiece,
• wherein the first fan and the second fan are provided in correspondence with the at least the first slit heater and the second slit heater, and
• wherein the first fan and the second fan have different sizes from each other.

A reflow apparatus comprising at least one heating unit, each of the at least one heating unit including:

• an air blower for circulating air;
• a partition for defining an air circulating path;
• at least a first slit heater and a second slit heater for heating a workpiece with the circulating air, the workpiece having a first surface and a second surface;
• and
• a furnace housing for accommodating the workpiece,
• wherein the air blower includes:
• a first fan for blowing the air toward the first surface of the workpiece,
• a second fan for blowing the air toward the second surface of the workpiece, and
• a motor for rotating the first fan and the second fan, wherein the motor has a rotation shaft provided above the workpiece in a perpendicular direction to workpiece,
• wherein the first fan and the second fan are provided in correspondence with the at least the first slit heater and the second slit heater, and wherein:
• the first slit heater and the second slit heater are provided so as to interpose the workpiece therebetween, and
• each of the first slit heater and the second slit heater has a slit structure including a plurality of pipe heaters, each having a nickel-chrome wire coiled therein, and a plurality of flat metal plates arranged in connection with, and perpendicular to, the pipe heaters.

A reflow apparatus comprising at least one heating unit, each of the at least one heating unit including:

• an air blower for circulating air;
• a partition for defining an air circulating path;
• at least a first slit heater and a second slit heater for heating a workpiece with the circulating air, the workpiece having a first surface and a second surface;
• and
• a furnace housing for accommodating the workpiece,
• wherein the air blower includes:
• a first fan for blowing the air toward the first surface of the workpiece,
• a second fan for blowing the air toward the second surface of the workpiece, and
• a motor for rotating the first fan and the second fan,
• wherein the first fan and the second fan are provided in correspondence with the at least the first slit heater and the second slit heater, and wherein:
• the first slit heater and the second slit heater are provided so as to interpose the workpiece therebetween, and
• each of the first slit heater and the second slit heater has a slit structure including a plurality of pipe heaters, each having a nickel-chrome wire coiled therein, and a plurality of flat metal plates arranged in connection with, and perpendicular to, the pipe heaters.

A reflow apparatus comprising at least one heating unit, each of the at least one heating unit including:

• an air blower for circulating air;
• a partition for defining an air circulating path;
• at least a first slit heater and a second slit heater for heating a workpiece with the circulating air, the workpiece having a first surface and a second surface;
• and
• a furnace housing for accommodating the workpiece,
• wherein the air blower includes:
• a first fan for blowing the air toward the first surface of the workpiece,
• a second fan for blowing the air toward the second surface of the workpiece, and
• a motor for rotating the first fan and the second fan,
• wherein the first fan and the second fan are provided in correspondence with the at least the first slit heater and the second slit heater, and
• wherein the first fan and the second fan have different sizes from each other.

A reflow apparatus including a heating unit comprising:

• an air blower for circulating air;
• a partition for defining an air circulating path;
• at least a first heater and a second heater for heating a workpiece with the circulating air, the workpiece having a first surface and a second surface;
• the first heater and the second heater being provided so as to interpose the workpiece therebetween;
• a furnace housing for accommodating the workpiece,
• wherein the air blower includes:
• a first fan for blowing the air toward the first surface of the workpiece;
• a second fan for blowing the air toward the second surface of the workpiece;
• and
• a motor for rotating the first fan and the second fan, and
• the first fan and the second fan are provided in correspondence with the at least the first heater and the second heater;
• wherein the air circulating path defined by the partition includes:
• a first air path for guiding the air from the first fan toward the first heater,
• a second air path for guiding the air from the second fan toward the second heater, and
• a third air path for guiding the air from the first heater to the first surface of the workpiece and further to the first fan and the second fan, and guiding the air from the second heater to the second surface of the workpiece further to the first fan and the second fan.

A reflow apparatus, comprising a heating unit including:

• a furnace housing for accommodating a workpiece;
• an air blower for circulating air;
• a partition for defining an air circulating path;
• at least a first heater and a second heater for heating a workpiece with the circulating air, the workpiece having a first surface and a second surface;
• and
• wherein the air blower includes:
• a first fan for blowing the air toward the first surface of the workpiece;
• a second fan for blowing the air toward the second surface of the workpiece;
• a motor for rotating the first fan and the second fan;
• a rotation shaft connected to the motor around which both the first fan and the second fan are provided and driven, the rotation shaft being provided in a perpendicular direction to a plane of the workpiece.