JP3167377U - Direct heating type soldering iron equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a direct heating type soldering iron device which does not need to constantly energize an electric heater unit to maintain a heated state. SOLUTION: A metal V-shaped, U-shaped or convex soldering iron tip and heater with a sharp tip is provided, current introduction terminals are provided at both ends thereof, and a current is passed through the iron tip to allow a trowel to flow. The tip heats up directly. [Selection diagram] Fig. 2

Description

  The present invention relates to a structure of a soldering iron.

Conventional soldering irons that perform soldering are provided with a conical iron tip part that has a hollow inside that contacts and melts the solder, and an electric heater part that heats the iron tip part. An electric heater part is inserted into the part, and when the electric heater part is heated, heat conduction is performed to the iron tip part, and the solder is meltable by heating the iron tip part.
The reason why the iron tip and the electric heater are independent is that the iron tip wears out due to oxidation, etc., and has a shorter life than the electric heater, making it easy to replace only the iron tip. And, the voltage applied to the electric heater part needs to be a structure that is not applied to the tip of the iron, the electric heater part is made independent and insulated, and only the heat needs to be a structure that conducts heat to the tip of the iron, Indirect heating structure is adopted.

  Patent Publication 2010-12472

In the case of a conventional soldering iron, the structure is composed of a soldering tip part and an electric heater part, and the heating is performed using indirect heating in which heat of the insulated electric heater part is conducted to the soldering tip part.
For this reason, the temperature of the tip of the iron is gradually conducted to the tip of the iron after the electric heater is heated, so it takes time for the tip to reach the solder melting temperature after turning on the power to the soldering iron. There was a problem.
Since the tip of the iron is constantly cooled in the atmosphere, it is necessary to always energize the electric heater to maintain the heating state, and there is a problem that energy is constantly consumed to maintain the temperature and energy efficiency is poor.
Since the iron tip is constantly heated in the atmosphere, there is a problem that the iron tip is consumed due to oxidation of the iron tip and the life of the iron tip is shortened.

In the present invention according to claim 1, the tip of the iron that is divided into left and right parts made of metal is formed into a V shape, a U shape, or a convex shape, only the tip portion of the tip is joined, and voltage is applied to both ends Thus, the soldering iron has a tip having a structure in which a current flows through the tip portion and directly generates heat.
Since the joint portion at the tip is soldered, it has a sharp shape and has a small cross-sectional area and a large electrical resistance, so the amount of heat generated is large, and the tip itself can instantaneously generate heat.
In addition, since the iron tip is metal and has low electrical resistance, heat is generated by passing a large current even at a low voltage, and insulation of the iron tip is not required.
Because it is possible to heat instantaneously, it is not necessary to maintain the heating state at all times, and it is energized only when soldering is performed, so it is possible to perform soldering with energy saving, and the high temperature time is short, so the iron tip is oxidized. It can also prevent wear.
Hereinafter, a description will be given with reference to the accompanying drawings 1. The attached drawing 1 is an example of a drawing of a pencil-type direct heating tip. The wire ▲ 2 ▼ for applying electricity to the both ends divided into the conical trowel tip ▲ 1 ▼ divided into left and right and joined at the tip made of silver is brazed with silver ▲ 5 ▼ By applying more voltage, current flows and the joint at the tip generates heat. By providing a copper tip (3) at the tip, wetting with solder is ensured, and a temperature sensor (4) is provided at the tip. Soldering device structured to control the temperature of the tip by controlling the applied power.

  In the present invention, there is no need for continuous energization to maintain the heating state of the soldering iron, which has been a problem in soldering work, which reduces production costs by reducing power consumption and oxidation of the iron tip generated to maintain the heating state. It is possible to reduce the cost of replacing the soldering tip and replacing the soldering tip due to wear of the tip.

Directly heated soldering iron tip Overall view Example

Hereinafter, description will be given with reference to the accompanying drawing 2. A conical tip (1) divided into right and left and joined at the tip is provided with a temperature sensor (2) in the vicinity thereof, and a wire connecting part (3) is provided in the left and right divided parts. The electric wire (7) connected to the section is connected to the power supply device (6), the temperature sensor is connected to the temperature controller (5) through the thermocouple (8), and the rear part covers the whole from the electric wire connection section. As described above, the structure provided with the case (4) that can be gripped by humans, when the current flows from the power supply device to the tip of the tip of the tip via an electric wire, the tip of the tip instantaneously generates heat at the joint. .
The temperature of the generated heat is detected by a temperature sensor, input to the temperature controller via a thermocouple, and the voltage of the power supply device is controlled by a signal from the temperature controller to keep the temperature of the tip portion constant. Attachment device.

Hereinafter, an embodiment will be described with reference to the accompanying drawings 3. Attached drawing 3 is an example in which work A (1) and work B (2) are soldered with cream solder (3) by the apparatus having the structure of attached drawing 2.
When the tip (4) of the direct heat soldering of the present invention is brought into contact with the cream solder and power is supplied from the power supply device, the tip is instantaneously heated and the cream solder is dissolved.

Soldering is a component mounting method that is indispensable for electronic equipment. However, when mounting using a soldering iron, it is necessary to always energize the soldering iron and keep it in a heated state. For this reason, electric power was consumed even when soldering was not performed. Also, since the tip of the iron is oxidized and worn for the duration of heating, it has to be replaced periodically.
In the case of the direct heating type soldering apparatus of the present invention, since instantaneous heating is performed only at the moment of soldering, it is not necessary to energize at all times, it can be used with energy savings, and replacement of the iron tip is not required, so that it can be used industrially The possibility is very high.

Claims (1)

It is equipped with a metal V-shaped, U-shaped or convex soldering iron tip / heater with a sharp tip, a current introduction terminal at both ends, and directing heat to the iron tip by flowing current through the iron tip Direct-heating type soldering iron device with a structure that does this.

Images