JPS6234412Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a winding frame with a pin terminal for an inductance element that can be stably mounted on a substrate, and particularly relates to a winding frame with a pin terminal that allows pin terminals to be easily soldered.

Figure 1 shows a conventional winding frame with a pin terminal, in which flanges 2 and 3 projecting outward are provided at both upper and lower ends of a cylindrical winding core 1 made of an electrically insulating material, and the lower flanges 3 are provided with flanges 2 and 3 on opposite sides. A plurality of pin terminals 4, 4' are planted along the winding frame, and protruding legs 5 are provided inside the pin terminals 4, 4' to fix the winding frame onto the substrate.

For the inductance element, a winding (indicated by a chain line) 6 is applied to this winding frame, the lead wire of the winding 6 is tied to the pin terminals 4 and 4' and soldered, and then a U- or E-shaped core (indicated by a chain line) is formed. Pass one leg of the winding core 1 through the center hole of the winding core 1, match the I-shaped core 8 on the opposite side, and wrap an insulating tape over both cores to complete the assembly.

In the case of a winding frame having this structure, it is not possible to wrap the lead wire of the winding 6 around the pin terminals 4, 4' due to the protruding legs 5, and solder the winding 6 by dipping it into a solder bath at the same time. It is also difficult to solder each group of pin terminals 4, 4' twice. This is because normally used insulating materials have poor heat resistance, so the protruding legs 5
Alternatively, if the outer edge 31 of the collar 3 is immersed in a solder bath (approximately 380° C.), it may be deformed, discolored, or cracked.

The present invention relates to a winding frame that can eliminate the above-mentioned drawbacks, and can be stably mounted on a board.
It is an object of the present invention to provide a winding frame with a pin terminal that can perform soldering work of the pin terminal by dipping the pin terminal into a solder bath twice.

In this invention, a cylindrical winding core made of an insulating material is provided with outwardly projecting flanges at both the upper and lower ends, and a plurality of pin terminals are implanted in the lower edge of the flange along the opposite sides. In a winding frame having a protruding leg along the inside of the winding frame, an inclined surface is provided on the outer edge of the lower end of the collar to be cut by a plane including the ridge of the protruding leg and the base of the pin terminal. It is characterized by

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 shows a front view of an embodiment of the present invention, and FIG. 3 shows a perspective view thereof.

The winding frame consists of a cylindrical winding core 1 and flanges 2 and 3 provided at both upper and lower ends of the winding core 1. On the upper surface of the upper flanges 2, there is a groove 21 having a size in which a rectangular rod-shaped core 8 (indicated by a chain line) can be inserted.
is provided, and on the opposite end surface of the lower collar 3 are pin terminals 4, 4' with winding lead wires planted in two rows on the lower surface.
As shown in FIG. 3, a plurality of thin vertical grooves 32 leading to the core are provided, as shown in FIG.
Projecting leg portions 5 extend downward from both side walls of this groove to a position slightly lower than the lower surface of the core 7.
Further, the outer edge of the lower surface of the collar 3 is cut off by a plane including the outer ridge 51 of the protruding leg 5 and the root 41 of the pin terminal 4 to form an inclined surface 34.

Since the present invention has such a structure, the winding wire 6 is wound on the winding frame, the lead wire is passed through the vertical groove 32, and is raised to the pin terminals 4, 4'. The base of the pin terminal can be immersed and soldered without immersing the pin terminal 5 or the collar 3, and all the pin terminals can be soldered by dipping into the solder bath twice. In other words, the entire winding frame is tilted and the inclined surface 3
4 is parallel to the liquid level of the solder tank, and the winding frame is held down so that only the pin terminal can be immersed in the solder tank. Also, cleaning work after soldering can be done efficiently in the same way.

[Brief explanation of the drawing]

FIG. 1 is a front view of an example of a conventional winding frame with a pin terminal, FIG. 2 is a front view of an embodiment of the present invention, and FIG. 3 is a perspective view. 1: Cylindrical winding core, 2, 3: Flange, 4, 4': Pin terminal, 5: Projecting leg, 6: Winding wire, 7: U or E-shaped core, 8: I-shaped core, 21, 33: Groove, 3
4: Inclined surface.

Claims (1)

[Scope of utility model registration request] A cylindrical winding core made of an insulating material is provided with outwardly projecting flanges at both the upper and lower ends, and a plurality of pin terminals are implanted along the opposite sides in the lower end of the flanges, and these pin terminals protrude inside. A winding frame provided with a leg portion, characterized in that the outer edge of the lower end collar is provided with a sloped surface that is a plane that substantially includes the ridge portion of the protruding leg portion and the base portion of the pin terminal. Winding frame.