Multiple-wire winding method, multiple-wire winding device, and wound coil component

Abstract

[Problem] To provide a multiple-wire winding method and a multiple-wire winding device that make it possible to reduce both damage done to wires and the risk of short-circuits between said wires and electrodes at different potentials. [Solution] In this winding method, starting sections of a plurality of wires are first guided from the outside of a flange on one end of a core to the inside thereof and then laid out on top of and connected to electrodes on said flange. The wires are guided laterally with respect to the axis of the core and are wound around a winding-core section together. Next, a wire-hooking implement is inserted into a groove in a flange on the other end of the core, ending sections of the wires are guided from the inside of said flange to the outside thereof, and a tip section of the wire-hooking implement is used to hook the ending section(s) of at least one but not all of the wires and bend said ending section(s) while keeping the wire(s) under tension. The ending sections of the plurality of wires are then laid out on top of and connected to corresponding electrodes on the flange on the other end of the core. By bending the wire ending section(s) laterally, the risk of short-circuits with electrodes at different potentials is reduced.

Description

technical field [0001] The present invention relates to a multi-wire winding method for forming a coil component by winding a plurality of wires around a winding core portion of an iron core, a multi-wire winding device, and a winding-type coil component. In particular, it relates to a coil component having a flange portion on one end side and the other end side in the axial direction of an iron core, and a plurality of electrodes respectively connected to a wire with a groove portion formed in each flange portion, and a winding method thereof. and winding devices. Coil components targeted by the present invention include, for example, two-wire, three-wire, four-wire, and other common mode choke coils, pulse transformer coils, and the like. Background technique [0002] In the past, it was known that Figure 17 A coil component 100 having a structure as shown (here, a two-wire common mode choke coil is shown). Reference numeral 101 is an iron core made of a magnetic body, ...

AI Technical Summary

Problems solved by technology

In contrast, in the Figure 19 (b) In the case where the start and end portions of all the wires 301 to 303 are fixed to the electrodes 304 to 309 along the axial direction of the iron core, although the risk of short circuit as described above can be reduced, it still needs to be pressed by the wires. The component 310 presses the end portions 301b, 302b of the wires 301, 302 against the winding core 102, so the wires 301, 302 may be damaged, and the wires may be broken.

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