JPH081424U - Inductance element - Google Patents

Abstract

(57) [Summary] [Purpose] There is no need to provide holes for accommodation in the board,
Also, to provide an inductance element capable of satisfactorily connecting the winding portion and the conductive path on the substrate. [Structure] In an inductance element, flanges 2 and 3 are provided on both ends of a cylindrical core 1 made of an insulating material and having a core magnetic leg inserted therein. A winding frame with pin terminals, in which a plurality of pin terminals to be mounted on the substrate are planted so as to be positioned in parallel at intervals, is provided on the opposite side surfaces. The pin terminal 14 includes a root portion 41 extending from a side surface of one of the collars 3 in a direction perpendicular to the axis of the winding core 1, and an inclined end of the root portion 41 opposite to the other collar 2. Substrate mounting that is extended from the slanted portion 42 and that is continuous from the slanted portion 42 and that is located outside the end surface of one flange 3 along the axis of the winding core 1 and on a plane orthogonal to the axis of the winding core 1 And a section 42.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an inductor element having a winding frame with pin terminals that can be stably mounted on a substrate.

[0002]

[Prior art]

 FIG. 4 is a diagram showing a conventional winding frame with pin terminals of an inductance element (hereinafter referred to as a winding frame). This bobbin is provided with rectangular flanges 2 and 3 which extend outward perpendicularly to the axis of the core 1 at both upper and lower ends of a cylindrical core 1 made of an electrically insulating material, and the lower end of the flange 3 is provided. A plurality of linear pin terminals 4 are planted on the opposite left and right side surfaces 34 at right angles to the axis of the winding core 1 and symmetrically. A lead wire drawing groove 32 is provided between each pin terminal.

In the inductance element, as shown in FIG. 5, a winding wire 6 is wound around a winding core 1 of the winding frame, and a lead wire at an end of the winding wire 6 is wound around a root of a pin terminal 4 through a lead wire lead groove 32. Soldering, then insert the middle leg of the E-shaped core 7 from the lower opening of the center hole 22 of the winding core 1, insert the I-shaped core 8 along the groove 21 of the opposite side, It is assembled by abutting both cores and winding an insulating tape on the outer circumference of the cores, or by fixing both cores with an adhesive.

The thus configured inductance element is mounted by fitting a flange into the hole 51 provided in the substrate 5.

[0005]

[Problems to be solved by the device]

 As described above, in the case of the winding frame of this structure, since the linear pin terminals 4 are planted on the side surface of the collar 3 at right angles to the axis of the winding core 1, the board 51 must be provided without holes 51. There was a drawback that it could not be connected to the conductive path of No. 5. Further, when the lead wire is wound on the pin terminal 4 and mounted on the substrate for soldering, there is a drawback that the winding portion and the conductive path on the substrate are not well connected.

Therefore, the technical problem of the present invention is to solve the above-mentioned drawbacks, to eliminate the need to provide a hole for accommodating in the substrate, and to satisfactorily connect the winding portion and the conductive path on the substrate. It is to provide an inductance element that can be.

[0007]

[Means for Solving the Problems]

 The inductance element of the present invention is composed of a core having a core magnetic leg and an insulating material. A cylindrical winding core into which the core magnetic leg is inserted is provided with flanges projecting outward, and one of the above-mentioned one is provided. In an inductance element having a winding frame with pin terminals in which a plurality of pin terminals to be mounted on a substrate are planted so as to be positioned in parallel with each other on opposite sides of the collar, the pin terminals are A root portion extending from a side surface of one of the collars in a direction perpendicular to the axis of the winding core; and an oblique portion obliquely extending from the extending end of the root portion to the opposite side of the other collar. A board mounting part that is continuous from the diagonal part and that is arranged on a plane orthogonal to the axis of the winding core outside the end surface of the one flange and along the axis of the winding core. Is characterized by.

[0008]

【Example】

 An embodiment of the present invention will be described below.

FIG. 1 is a perspective view of an embodiment of a winding frame of an inductance element according to the present invention. As shown in the figure, the reel has a tubular core 1, rectangular flanges 2 and 3 provided at both upper and lower ends thereof, and pin terminals 14 planted in the lower flange. The upper and lower flanges 2 and 3 are provided perpendicularly to the axis of the winding core 1. On the upper surface of the flange 2 at the upper end, a groove 21 having a size into which an I, U or E-shaped core can be fitted is provided. The pin terminals are planted on the opposite side surfaces 34 with the axis of the winding 1 of the lower collar 3 interposed therebetween. The pin terminal 14 has a bent shape as shown in FIG. 3, and has a root portion 41 extending outward from the side surface 34 and an extending end of the root portion 41 that extends obliquely to the side opposite to the other flange. The bent board 43 has a bent portion 43 and a board mounting section 42 which is continuous from the tilted section 43 and which is arranged on one plane orthogonal to the axis of the winding core. A notch groove 33 into which a U- or E-shaped core can be fitted is provided on the side surface of the collar 3 where the pin terminals are not implanted.

As shown in FIG. 2, the inductance element is made by winding the winding 6 around this winding frame, mounting the core, and immersing it in an impregnating agent such as varnish. The winding wire 6 is wound around the cylindrical core 1 of the winding frame, and the lead wire at the end of the winding wire is wound around the root portion 41 of the pin terminal 14 through the lead wire drawing groove 32 and soldered. To install the core, insert the middle leg of the E-shaped core 7 from the lower opening of the center hole 22 of the winding core, insert the I-shaped core 8 along the groove on the opposite side, and insert both cores. Dating. When mounting the inductance element thus configured on the substrate 15, the substrate mounting portion 42 at the tip of the pin terminal 14 and the conductive path on the substrate 15 are connected to each other.

[0011]

[Effect of device]

 As described above, in the inductance element of the present invention, the bobbin with the pin terminal has the tubular core made of an insulating material and the outwardly projecting flanges provided at the upper and lower ends thereof, and the lower end of the flange is provided on the opposite side surface. In a bobbin with a pin terminal in which a plurality of pin terminals are planted, the pin terminal is bent, and the board mounting part of the pin terminal is below the bottom surface of the collar in which the pin terminal is planted. The lead of the end is wound around the root of the pin terminal located above the bottom of the collar, and the end of the winding is wound, and the board mounting part located below the bottom of the collar is connected to the board conductive path. Can be installed stably.

Further, the inductance element of the present invention can be mounted without forming a hole in the board because the bobbin with the pin terminal has the board mounting portion of the pin terminal below the bottom surface of the flange.

Further, since the winding frame with pin terminals has the root portion and the slanted portion continuous with the pin terminal in the inductance element of the present invention, when the flange bottom surface is brought close to the substrate side, the root portion The elastic force between the diagonal part and the diagonal part allows the board mounting part and the conductive path of the board to be in close contact with each other, and even if the horizontal position of the conductive path of the board is slightly offset, there are two bending points. It can be dealt with flexibly, the impact from the board mounting part can be mitigated, and there is no fear that the pin terminal will break from the root.

[Brief description of drawings]

FIG. 1 is a perspective view of a winding frame with pin terminals of an inductance element according to an embodiment of the present invention.

2 is a front partial cross-sectional view of an inductance element using the winding frame with pin terminals of FIG.

FIG. 3 is an enlarged view of a pin terminal portion of the bobbin with a pin terminal shown in FIG.

FIG. 4 is a perspective view of an example of a winding frame with pin terminals of a conventional inductance element.

5 is a front view of an inductance element using the winding frame with pin terminals of FIG. 4. FIG.

[Explanation of symbols]

 1 Cylindrical winding core 2,3 Tsuba 4,14 Pin terminal 5,15 Board 6 Winding 7 E-shaped core 8 I-shaped core 21,33 Groove part 32 Lead wire drawing groove 34 Side surface 41 Root part 42 Board mounting part 43 51 holes diagonal

Claims (1)

[Scope of utility model registration request] 1. A core provided with a core magnetic leg, and a cylindrical core made of an insulating material, into which the core magnetic leg is inserted. In an inductance element, comprising: a winding frame with pin terminals, in which a plurality of pin terminals to be mounted on a substrate are planted so as to be positioned in parallel with each other on opposite side surfaces, the pin terminal is provided with the one flange. From the side surface of the core in a direction perpendicular to the axis of the winding core, an oblique portion obliquely extending from the extending end of the root portion to the side opposite to the other flange, and a continuous portion from the oblique portion. An inductance element comprising: a board mounting portion disposed on a plane that is orthogonal to the axis of the winding core outside the end surface of the one flange and along the axis of the winding core.