JP2009125776A - Soldering iron - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a soldering iron which can solder a cable to a connector pin with one operation by energizing an iron bit in a closing direction without being held by the hand so as not to deform the connector resin at the root part of the connector pin, and by which an operation efficiency can be enhanced by installing a heater at the iron bit portion, thereby saving trouble of fusing a solder, and also the need of operation for filling the solder is eliminated to save the trouble. <P>SOLUTION: At the distal end of a pair of left and right iron bodies 1, 1, there are installed iron bits 2, 3 long in transverse direction and semi-circular arcuate in the cross section. Inside the iron bits, an opening 2a is formed communicating from a solder infusing port 1a formed in the iron body. Synthetic resin made grips 4, 4 are provided in the iron body and are pivotally attached so as to be freely opened and closed, with a spring 6 arranged between the grips and designed to be energized in the closing direction of the iron bits. Wiring 7 is installed to the iron bits in the grips and the pair of left and right iron bodies, with a heater 8 arranged at the iron bit part of the iron bodies, and with a switch 9 arranged in one grip for the purpose of turning the wiring on/off. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a soldering iron for directly attaching a cable to a connector pin by soldering.

  Conventionally, when the object to be soldered is not fixed, it is difficult to melt the solder while worrying about whether the object does not move during the soldering work, and it is necessary to fix the object in advance. There was a problem that there was. In addition, when the solder does not work well on the tip, the time for the tip to contact the object becomes long, and if this object is a connector pin, the connector at the base of this connector pin There has been a problem that the resin may be deformed or the position of the connector pin may change.

  The first prior art is shown in FIGS. As shown in FIGS. 2 and 3, the conventional soldering apparatus includes a heating tip 3a for soldering and a heat dissipation tip having a large heat capacity and capable of cooling the mounted component 5. 3b, and the heating tip 3a and the radiating tip 3b are paired so as to hold the mounted component 5, and are configured to be movable and thermally insulated. (For example, refer to Patent Document 1).

  However, in this case, in order to close the tips 3a and 3b, there is a problem that they must be pressed by hand. In addition, there is a problem in that it takes time and labor for soldering.

  The second prior art is shown in FIGS. As shown in FIGS. 4 and 5, this conventional tweezers type soldering iron is formed by connecting a pair of left and right soldering irons 301, 301 so that the iron tips 301a, 301a are free ends and can be opened and closed. (For example, refer to Patent Document 2).

However, even in this case, in order to close the iron tips 301a and 301b, there is a problem that the gripping portions 301b and 301b must be closed by hand. In addition, there is a problem that it takes time and labor to arrange the solder.
JP 2005-161334 A Japanese Utility Model Publication No. 3-120970

  The present invention has been made in view of the above-described conventional problems, and can be urged in the direction of closing the tip by the spring of the gripping portion and does not need to be pressed by hand. The cable can be soldered to the connector pin in one operation without deforming the connector resin, and the work efficiency is reduced by providing a heater at the tip of the iron body. It is an object of the present invention to provide a soldering iron that does not require a work of placing solder and is labor-saving.

  The present invention has been proposed in order to solve the above-mentioned problems. The invention according to claim 1 is directed to a pair of left and right irons in a soldering iron for directly attaching a cable to a connector pin by soldering. The tip of the main body is provided with a tip having a semicircular arc shape that is long in the lateral direction, and an inner surface of one of the tips is formed with an opening communicating with a solder injection port formed in the main body of the iron, The pair of left and right iron bodies are each provided with a gripping portion made of a synthetic resin, and these gripping portions are pivotally mounted so as to be freely opened and closed, and are urged in a direction in which the tip is closed between the gripping portions. A spring is disposed, and a wire is provided in the grip part and the pair of left and right iron bodies to the iron tip. A heater is placed and one grip A switch for turning ON / OFF the wiring is arranged, and the connector pin and the cable are inserted into the tip having a semicircular arc shape in cross section, and the switch is turned ON with the tip closed. The connector pin and the cable are heated with the molten solder flowing out from the opening of the tip by heating the heater to heat the tip, melting the solder injected from the solder inlet at the tip. It is characterized by being configured to be soldered.

  According to a second aspect of the present invention, in the first aspect of the present invention, the opening provided in the tip is formed long in the longitudinal direction of the tip.

  According to the first aspect of the present invention, the tip of the pair of left and right iron bodies is provided with the tip having a semicircular arc cross section which is long in the lateral direction, and is formed on the inner surface of one of the iron tips. Since an opening communicating with the solder injection port is provided, the solder heated and melted by the heater provided inside the iron body solders the connector pin and the cable so that the connector pin and the cable are connected. Solder is accumulated in a long range, and reliable soldering can be performed. Furthermore, since a spring that biases the tip in the closing direction is arranged between the pair of left and right grips, the tip automatically closes when soldering, so there is no need to hold it by hand. This makes it easy to perform soldering work. Further, the cable can be soldered to the connector pin within one operation without deforming the connector resin at the base portion of the connector pin. Moreover, it is possible to heat the heater and melt the solder simply by turning on the switch provided on the gripping unit and the wiring in the gripping unit, and it is possible to improve the soldering work efficiency by eliminating the trouble of melting the solder. it can. Moreover, it is not necessary to arrange solder and it is not time-consuming.

  According to invention of Claim 2, since the opening provided in the tip is formed long toward the longitudinal direction of the tip, solder can be piled up in a longer range by the connector pin and the cable. Thus, soldering can be performed firmly.

  Embodiments of a soldering iron according to the present invention will be described below with reference to the drawings.

  1A and 1B show a soldering iron according to an embodiment of the present invention, FIG. 1A is a perspective view showing a state before soldering, FIG. 1B is an explanatory view showing an internal circuit, and FIG. FIG. 6D is a perspective view showing a state where the connector pins and the cable are soldered by the soldering iron.

  In the soldering iron of this embodiment, as shown in FIG. 1 (a), a pair of left and right iron bodies 1, 1 are respectively provided with tips 2, 3 having a semicircular arc cross section which is long in the lateral direction. A long opening 2a in the longitudinal direction communicating with the solder injection port 1a formed in the iron body 1 is formed on the inner surface of one iron tip 2. Furthermore, a pair of left and right iron bodies 1 and 1 are provided with gripping portions 4 and 4 made of synthetic resin, respectively, and these gripping portions 4 and 4 are pivotally attached to projecting portions 5 and 5 projecting inward. It can be opened and closed freely. A spring 6 is disposed between the gripping portions 4 and 4 to bias the tips 2 and 3 in the closing direction. As shown in FIG. 1 (b), one grip portion 4 and a pair of left and right iron bodies 1, 1 are provided with wires 7 up to tips 2, 3, and the tip 2, Heaters 8 and 8 are arranged in the portion 3. In addition, a switch 9 for turning the wiring 7 on and off is disposed on one gripping portion 4.

  Then, as shown in FIG. 1 (a), the connector pin 10 and the cable 11 are inserted into the tips 2 and 3 having a semicircular arc cross section, and as shown in FIG. With the switch 3 closed, the switch 9 is turned on to heat the heaters 8 and 8 to heat the tips 2 and 3, and the solder injected from the solder inlet 1 a is melted at the tip 2. As shown in FIG. 1D, the connector pins 10 and the cable 11 are soldered with the molten solder 12 flowing out from the opening 2a of the tip 2. The wiring 7 is connected to the temperature controller from the grip portion 4.

  Therefore, according to the present embodiment, the tips 2 and 3 having a semicircular cross section that is long in the lateral direction are provided at the tips of the pair of left and right iron bodies 1 and 1, respectively. Since the opening 2a communicating with the solder injection port 1a formed in the iron body 1 is provided, the solder heated and melted by the heater 8 provided in the iron body 1 is connected to the connector pin 10 and the cable. By soldering 11, solder 12 is deposited on the connector pin 10 and the cable 11, and reliable soldering can be performed. Further, since the spring 6 for biasing the tip 3 in the closing direction is disposed between the pair of left and right grips 4, 4, the tips 2, 3 are automatically closed when soldering. Therefore, it is not necessary to hold the hand and the soldering work can be easily performed.

  Further, the cable 11 can be soldered to the connector pin 10 in one operation without deforming the connector resin 13 at the base portion of the connector pin 10. In addition, the solder 8 can be melted by heating the heater 8 simply by turning on the switch 9 provided on the gripping portion 4 by the wiring 7 in the trowel main bodies 1 and 1 and the gripping portion 4. The work efficiency can be improved. Moreover, it is not necessary to arrange solder and it is not time-consuming. In addition, since the opening 2a provided in the tip 2 is formed long in the longitudinal direction of the tip 2, the connector pin 10 and the cable 11 can be soldered in a long range, Can be firmly attached.

The soldering iron of embodiment of this invention is shown, (a) is a perspective view which shows the state before soldering, (b) is explanatory drawing which shows the internal circuit, (c) performs the soldering FIG. 4D is a perspective view showing a state in which the connector pin and the cable are soldered by the soldering iron. It is a perspective view which shows the conventional soldering apparatus. It is a front view of the state which is performing the soldering operation | work with the conventional soldering apparatus. It is a perspective view which shows the conventional tweezers type soldering iron. It is a perspective view which shows the use condition of the conventional tweezers type soldering iron.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Iron body 1a Solder injection port 2 Iron tip 2a Opening 3 Iron tip 4 Holding part 5 Protrusion part 6 Spring 7 Wiring 8 Heater 9 Switch 10 Connector pin 11 Cable 12 Solder 13 Connector resin

Claims (2)

  In the soldering iron for directly attaching the cable to the connector pin by soldering, a pair of left and right iron bodies is provided with a semi-circular iron tip having a long cross section in the lateral direction. Openings communicating with solder injection ports formed in the iron body are formed on the inner surface, and a pair of left and right iron bodies are provided with synthetic resin gripping parts, respectively. A spring for biasing the tip in the closing direction is disposed between the gripping portions and the gripping portions. A wiring is provided, a heater is disposed on the tip portion of the pair of left and right iron bodies in the wiring, and a switch for turning the wiring on and off is disposed on one gripping portion. In the tip of the semicircular arc section The connector pin and the cable are inserted, the switch is turned on with the tip closed, the heater is heated to heat the tip, and the solder injected from the solder injection port is added to the tip. A soldering iron characterized in that the connector pin and the cable are soldered with a molten solder that melts at the tip and flows out from the opening of the tip.   The soldering iron according to claim 1, wherein the opening provided in the iron tip is formed long in a longitudinal direction of the iron tip.