JPS5940739Y2 - inductance element - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an inductance element, particularly one having a feature of fixing a terminal portion of a coil.

FIG. 1 shows a conventional example which is the background of this invention.

In the figure, 1 is a magnetic core around which a coil 2 is wound.
The winding part 3 has a winding part 3 wound with flanges 4a and 4b at both ends of the winding part 3. It has a structure in which it is fixed to the electrode 7 of No. 6 with solder 8.

When installing the inductance element according to this conventional example on a circuit board or the like, the flange 4b side on which the terminal 5 is fixed with solder 8 is the installation side, but the surface of the solder 80 is on the flange 4b.
If the solder 8 is not uniform, good electrical contact will not be obtained when it is installed on a circuit board, etc., and conversely, if the solder 8 is raised above the flange 4b, it may be defective when it is installed on a circuit board. It becomes stable.

This idea eliminates the drawbacks of the conventional example described above, and aims to provide an inductance element that can be securely and stably mounted on a circuit board, etc., and can also securely fix the terminal section of the coil. be.

That is, the gist of the inductance element according to this invention is an inductance element that has a magnetic core around which a coil is wound, and flanges at both ends of the magnetic core, the surface of which the flange is attached to other attachment parts. A recess into which the terminal of the coil fits is formed in the recess, and an electrode is formed on the adherend surface including the recess and the side surface of the flank connected to the adherend surface, and the terminal of the coil is fixed to the electrode in the recess. It is characterized in that the electrode position on the attachment surface is located outside of the fixed position of the coil terminal.

An embodiment illustrating this invention will be described below.

FIG. 2 shows an embodiment of this invention.

Components that are the same as those in FIG. 1 of the conventional example are given the same numbers and explanations will be omitted.

The features of this idea are as follows.

That is, a recess 6 is formed in the end face of the flange 4b, which is the surface to which the circuit board 9 is attached.
The illustrated one has two grooves formed therein.

An electrode 7 is formed on the end surface of the flange 4b including the recess 6, and on the side surface continuous to this end surface.

The terminal 5 of the coil 2 is led out into the recess 6 and fixed with solder 8.

The solder 8 is attached to the electrode 7 by dipping the inductance element into a solder bath, and the solder 8 is also attached to the electrode 7a on the end face of the flange 4b.

As is clear from this embodiment, according to this invention, the electrode 7a formed on the end face of the flange 4b serving as the attachment surface is located outside the fixed position of the terminal 5 of the coil 2, and is attached to the circuit board 9. When installed, electrical contact can be maintained reliably at the electrode 7a portion.

FIG. 3 shows an example of application of this invention, in which a lead terminal 10 is attached, and the lead terminal 10 is fixed in the recess 6.

According to this example, the recess 6 can be used as a fixed position for the terminal 5 of the coil 2, and can also be used as a fixed position for the lead terminal 10, and furthermore, the distance between the lead terminals 10 can be maintained constant. be.

As is clear from the above-mentioned embodiments, the inductance element according to this invention can provide a stable connection when connected to the mounting part of a printed circuit board, etc., and can improve the efficiency of the connection work, and can be used in automatic machines. It is also possible to mount an inductance element by

Furthermore, by widening the spacing between the electrodes, it is possible to prevent short circuit accidents during mounting.

Furthermore, since the electrodes are formed on the side of the flange,
When connecting to a circuit board or the like, heat is easily transferred from this part to the electrode on the surface to which it is attached, making it easier to perform solder connection work and ensuring electrical connection.

[Brief explanation of drawings]

FIG. 1 is a side view of a conventional example that is the background of this invention, FIG. 2 is a side view of an embodiment of this invention, and FIG. 3 is a perspective view of an applied example. 1... Magnetic core, 2... Coil, 4a, 4
b...Flange, 5...Terminal, 6...
... recess, 7 ... electrode, 8 ... solder.

Claims (1)

[Scope of utility model registration request] An inductance element that has a magnetic core around which a coil is wound and flanges at both ends of the magnetic core, and a recess into which the terminal of the coil is fitted is formed on the surface of the flange to which other attachment parts are attached. Electrodes are formed on the adherend surface and the side surfaces of the flange connected to the adherend surface, and the terminal of the coil is fixed to the electrode in the recess, so that the electrode position on the adherend surface is higher than the fixed position of the coil terminal. An inductance element characterized by being located externally.