TWI607461B - Multi-wire winding method, multi-wire winding device and coiled coil part - Google Patents

Description

Multi-wire winding method, multi-wire winding device and coiled coil component

The present invention relates to a multi-wire winding method, a multi-wire winding device, and a winding-type coil component for winding a plurality of wires to form a coil component in a core portion of a core. In particular, each of the one end side and the other end side in the axial direction of the axial core has a flange portion, and has a flat surface on the mounting surface side of each flange portion, and a plurality of electrodes connected to the respective lines are spaced apart from each other on the flat surface. A coil component formed, a winding method thereof, and a winding device. The coil component to which the present invention is applied includes, for example, a common mode choke coil of two lines, three lines, four lines, or the like, or a pulse transformer type coil.

Previously, a coil component 100 (showing a 2-wire common mode choke coil) constructed as shown in Fig. 21 is known. The 101-series includes a core body of a magnetic body, and has a core portion 102 at a central portion thereof and a pair of flange portions 103 and 104 at both end portions in the axial direction. Two wires 110 and 120 are wound side by side in the winding core portion 102. Two (four in total) electrodes 105 to 108 are formed on the mounting surface sides of the flange portions 103 and 104, respectively. The first line portions 110a and 120a of the wires 110 and 120 are connected and fixed to the electrodes 105 and 106 of the one end side flange portion 103, and the terminal portions 110b and 120b of the wires 110 and 120 are connected and fixed to the other end side flange portion 104. On the electrodes 107, 108. The start line portion 110a of one of the wires 110 is connected to the electrode 105 substantially parallel to the axis of the core (substantially perpendicular to the outer wall surface of the flange portion), and the other line 120 is lined along the line 120a. It is connected and fixed to the electrode 106 with respect to the direction in which the axis of the core is inclined. Further, the terminal portion 120b of the wire 120 is connected and fixed to the electrode 108 substantially parallel to the axis of the shaft, and the terminal portion 110b of the wire 110 is connected and fixed to the electrode 107 in a direction inclined with respect to the axis of the axis.

In the coil component 100 of this configuration, there is a concern that a short circuit occurs between the start line portion 120a of the line 120 and the electrode 105 having a different potential, and between the end line portion 110b of the line 110 and the electrode 108 having a different potential. That is, since the start line portion 120a of the line 120 and the end line portion 110b of the line 110 linearly extend between the winding core portion and the electrode, the start line portion 120a and the end line portion 110b are in contact with the electrodes 105, 108 having different potentials ( The possibility of a short circuit between the two is higher with the possibility of S1 and S2.

In order to cope with such problems, there is a coil component 200 as shown in FIG. In FIG. 22, the same portions as those in FIG. 21 are denoted by the same reference numerals and the description thereof will not be repeated. This coil component 200 can be produced by the winding device shown in Patent Document 1. The line portions 110a, 120a of the lines 110, 120 are fixed on the electrodes 105, 106 in the direction of the axis axis, and the line portions 110b, 120b of the lines 110, 120 are also oriented in the direction of the axis axis with respect to the electrodes 107, 108. fixed. Thus, the starting line portion 120a of the wire 120 has the connecting portion 120a ₁ connected to the electrode 106 in the axial axis direction, and the wiring portion 120a ₂ extending toward the winding core portion 102, and between the connecting portion 120a ₁ and the wiring portion 120a ₂ The bending makes it possible to ensure the distance between the starting line portion 120a and the electrode 105 having a different potential, and the risk of causing a short circuit can be reduced. Further, because the end line portion 110b of the wire 110 is also the same axial direction along the axial core connected to the electrode 107, so that the bending portion between the connecting electrode 107 of the wiring portion 110b extending from the winding core _{portion. 1} and 102 110b ₂ and, thus The distance between the terminal portion 110b and the electrode 108 having a different potential is ensured, and the risk of occurrence of a short circuit can be reduced.

A method of winding the coil component 200 shown in Fig. 22 by the winding device shown in Patent Document 1 will be described below. First, the two wires 110 and 120 are guided by a hook pin or the like, and are guided from the outer side of the one end side flange portion 103 to the inner side, and the line portions 110a and 120a of the wires 110 and 120 are arranged along the axis axis direction. On the electrodes 105 and 106, the start line portions 110a and 120a are fixed to the electrodes 105 and 106 in this state. Thereby, the start line portions 110a and 120a can be fixed to the electrodes 105 and 106 in the axial direction of the axis. Thereafter, the shaft core 101 is rotated, and the two wires 110 and 120 are wound around the winding core portion 102 of the shaft core 101. The terminal portion 120b of the wire 120 may guide only the wire 120 from the inner side of the other end side flange portion 104 to the outside, and along the axis with respect to the electrode 108 The core axis direction 110b is disposed, but the wire 110 can only guide the wire 110 from the inner side of the other end side flange portion 104 to the outside and cannot be disposed in the axial direction of the electrode 107 with respect to the electrode 107. Therefore, in the above-described winding device, the final wire portion 110b is temporarily pressed by the crimping member 201, and the final wire portion 110b is temporarily fixed, and the wire 110 is guided to the outer side in the axial direction of the axis. The terminal portion 110b is fixed to the electrode 107 in the direction of the axis axis.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2002-134347

However, in the above-described winding device, as shown in FIG. 22(b), since the core portion 102b is pressed against the core portion 102 by the crimping member 201, the wire 110 is damaged, and the worst case is caused. , the possibility of wired disconnection. That is, since a specific tension is applied to the wire 110, the wire 110 is pressed against the core portion 102 by the crimping member 201, and an excessive load is applied to the terminal portion 110b of the wire 110 to cause damage. An insulating film is formed on the surface of the wire, and if the insulating film is injured, there is a possibility that pressure resistance is deteriorated or insulation is poor. Further, the pressure line 201 of the pressing member 110 of the line end due to the bending line portion 110b 2 and 110b ₂ of the wiring portion between the connecting portion _{110b. 1,} so the end line portion 110 of the wire 110b of the possibility of the slack.

In the above description, an example of a 2-wire common mode choke coil is shown. However, in the case of using a 3-wire common mode choke coil of three lines, the risk of short circuit is further increased. Fig. 23(a) shows a conventional 3-wire common mode choke coil 300, and Fig. 23(b) shows a 3-wire common mode choke coil 400 manufactured by a winding device shown in Patent Document 1. In the case of (a), among the three lines 301 to 303, the start line portions 302a and 303a of the second and third lines 302 and 303 are close to the electrodes 304 and 305 having different potentials (shown by S3 and S4), and the first Since the terminal portions 301b and 302b of the second wires 301 and 302 are close to the electrodes 308 and 309 having different potentials (indicated by S5 and S6), there is a high risk of occurrence of a short circuit. in comparison, As shown in (b), when the initial line portion and the final line portion of all the lines 301 to 303 are fixed in the direction of the axis axis with respect to the electrodes 304 to 309, the risk of the above-described short circuit can be reduced, but the pressure must be utilized. Since the wire member 310 presses the end portions 301b and 302b of the wires 301 and 302 with respect to the core portion 102, the wires 301 and 302 are still damaged, and there is a possibility that the wire is broken.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a multi-wire winding method and a multi-winding apparatus which can reduce the risk of short-circuiting of electrodes having different lines and potentials, and can reduce damage to the wires. Other purposes are to provide highly reliable coiled coil components.

The multi-winding method of the present invention is a method of winding a plurality of wires to form a coil component in a winding core portion of a shaft core, and has a flange portion at one end side and the other end side in the axial direction of the shaft core. A flat portion is provided on the mounting surface side of each of the flange portions, and a plurality of electrodes connected to the respective lines are formed at intervals in the flat portion. The method includes the steps of guiding the start line portion of the plurality of lines from the outer side of the one end side flange portion of the shaft core to the inner side of the shaft core, and connecting the start line portion of each line to the electrode of the one end side flange portion; a step of guiding the strips in the lateral direction with respect to the axial direction of the shaft core, and winding the plurality of lines together in the winding core portion; and abutting the line bending jig against the flat end portion of the other end side of the shaft core And the step of extending the front end of the wire bending jig to the same position as the inner side surface of the other end side flange portion or closer to the core portion side; and the plurality of lines The end line portion is guided to the outside from the inner side of the other end side flange portion of the shaft core, and the end line portion of at least one of the plurality of lines is bent between the line bending jig and the other end side flange portion. And a step of connecting the end line portion of the plurality of lines to the electrode of the other end side flange portion.

The multi-wire winding device of the present invention is a multi-winding device in which a plurality of wires are wound around a core portion of a shaft core to form a coil component, and each of the one end side and the other end side of the axial direction has a flange portion. Further, a flat surface is provided on the mounting surface side of each of the flange portions, and a plurality of electrodes connected to the respective lines are formed at intervals in the flat surface. The device comprises: a plurality of a wire port respectively supplied to the wire; a moving mechanism that moves the plurality of wire outlets; a rotating mechanism that rotates the shaft core about its axis; and a bonding device that connects the wire to the electrode; the wire is bent a jig that abuts on a flat surface of the other end side flange portion of the shaft core and between the plurality of electrodes, and an actuating device that operates the wire bending jig. The start line portion of the plurality of lines is guided inward from the outer side of the one end side flange portion of the shaft core by the outlet port, and each line is disposed on the electrode of the one end side flange portion and connected by the joint device. Leading the plurality of lines to the lateral direction with respect to the axial direction of the axial core, and rotating the shaft core to wind the plurality of wires together in the winding core portion, so that the wire bending jig protrudes from the front end thereof The inner side surface of the other end side flange portion of the axial core abuts on the flat surface of the other end side flange portion at the same position or closer to the core portion side, and the plurality of the plurality of strips are passed through the outlet port The end line portion of the wire is guided to the outside from the inner side of the other end side flange portion of the shaft core, and at least one of the plurality of lines is bent between the line bending jig and the other end side flange portion. One end line portion is disposed on an electrode corresponding to the other end side flange portion of the end line portion of the plurality of lines, and is connected by the bonding device.

The winding-type coil component of the present invention has a winding core portion and a flange portion formed at both end portions of the winding core portion, and includes a shaft core having a flat surface on a mounting surface side of each flange portion, and The flat surfaces are formed with a plurality of electrodes at intervals, and a plurality of wires are wound around the winding core portion, and the start line portion and the final line portion are connected to the electrode. a start line portion of the wire connected to an electrode of the one end side flange portion which is closer to the winding position of the winding core portion, has a connection portion connected to the electrode, and is bent at a side edge portion of the core portion of the electrode And a wiring portion extending toward the starting winding position, a connecting portion connected to the electrode, and a connecting portion connected to the electrode of the one end flange portion farther from the winding position of the winding core portion, and A wiring portion that is bent in a lateral direction at a side edge portion of the winding core portion of the electrode and that extends toward the winding position. a terminal portion of the wire connected to an electrode of the other end side flange portion which is closer to the end of the winding core portion has a connection to the electrode And a wiring portion bent at a side edge portion of the winding core portion of the electrode and extending toward the final winding position, and connected to the wire of the electrode of the other end side flange portion far from the final winding position of the winding core portion The terminal portion has a connection portion connected to the electrode, and a wiring portion bent in a lateral direction at a side edge portion of the core portion of the electrode and extending from the bent position toward the final winding position.

In the wound wire type coil component of the present invention, the first line portion of the plurality of wires is connected to the electrode of the one end side flange portion, and the side edge portion of the core portion of the electrode is bent and extends toward the initial winding position. In particular, the start line portion of the line connected to the electrode of the one end side flange portion farther from the start position of the winding core portion has a connection portion connected to the electrode and a lateral direction portion of the core portion of the electrode in the lateral direction A wiring portion that is bent and extends toward the starting position. Therefore, the distance between the start line portion of the line and the electrode having a different potential can be ensured, and the risk of occurrence of a short circuit can be reduced. The end line portion of the one line is connected to the electrode of the other end side flange portion, and is bent at the side edge portion of the core portion of the electrode and extends toward the final winding position. The end line portion of the other line, that is, the end line portion of the line connected to the electrode farther from the end of the winding core portion, has a connection portion connected to the electrode, and a lateral direction portion of the core portion of the electrode in the lateral direction A wiring portion that is bent and extends toward the final winding position. In other words, since the end position of the self-winding core portion is extracted and bent in the lateral direction in the vicinity of the edge portion on the winding core portion side of the electrode, the distance between the wiring portion and the electrode having a different potential can be secured, and the distance can be reduced. The risk of a short circuit in the electrode. Further, since it is not necessary to press the core portion by the crimping member as before, it is possible to prevent the wire from being injured. Further, since the end portion of the self-winding core portion is taken out until it is connected between the electrodes, the end portion of the wire has a bent portion at one portion, so that the wire is less likely to be slack.

In the present specification, the "starting position" is the position or side surface of the winding core line that is first connected to the winding core portion, and the "final winding position" is the last line of the wound winding line with respect to the winding core portion. The position or side of the core. The first line portion of the wire connected to the electrode of the one end side flange portion farther from the winding position of the winding core portion, and the electrode of the other end side flange portion which is connected to the end of the winding core portion The terminal portions of the wires each have a connection portion and a wiring portion. The connecting portion is connected to the portion on the electrode, and the wiring portion extends from the connecting portion and the winding core The portion between the beginning of the volume (or the final volume position). a line connecting a line connecting the electrode of the one end side flange portion closer to the winding position of the winding core portion, and a line connecting the electrode of the one end side flange portion farther from the winding position of the winding core portion The starting line portion may be connected to the electrode along the axial axis direction, and the end line of the line connecting the electrode of the other end side flange portion closer to the final winding position of the winding core portion may also be along the axis axis direction. Connected to the electrode. On the other hand, the final line portion of the line connecting the electrode of the other end side flange portion farther from the end position of the winding core portion may be connected to the electrode in a direction inclined with respect to the axial axis direction. The direction "inclination with respect to the axis direction of the axis" is a direction in which the inclination angle with respect to the axis of the axis is larger than the axis direction of the axis. Further, "bending in the lateral direction" means that the initial line portion (or the final line portion) of the line changes in angle between the wiring portion and the connecting portion as viewed from the direction opposite to the electrode. The reason why the line portion of the line is bent in the lateral direction is because the electrode of the one end side flange portion is connected to the start line portion of the line in the axial axis direction, and then the start line portion of the line is guided to the winding position of the core portion. On the other hand, the reason why the end line portion of the wire is bent in the lateral direction is because the end line portion of the line drawn from the end winding position of the winding core portion is bent by the wire bending jig and then connected to the electrode of the other end side flange portion.

Here, the winding method of the present invention will be described by taking a case where two wires are wound around a core. First, one end side flange portion of the shaft core is held by a rotating mechanism such as a spindle jig. Next, the hook pin is used to catch the beginning of the two lines, and two lines are taken out from the outlet, and the outlet is moved from the outer side of the flange portion of the one end side to the inner side, and the beginning line of the two lines is moved. The electrodes are disposed on the electrodes of the one end side flange portion in the axial direction of the core, and are connected. Thereby, the first line portions of the two lines are connected and fixed to the electrodes in the axial direction of the axis. In the present specification, the "axis axis direction" is not necessarily strictly parallel to the axis axis direction, and is extended so as to extend at least between the inner edge (the core side) and the outer edge (the outer side of the flange) of the connecting electrode. Just fine. In this way, since the line portion of the line is connected to the electrode in the axial direction of the axis, it is possible to suppress the risk of short-circuiting between the line portion of the line and the electrode having a different potential. After the beginning line portion of the wire is connected to the electrode, the two wires are guided in the lateral direction with respect to the axis axis direction, and the shaft core is rotated by the rotation mechanism, thereby The two wires are wound together at the core of the core.

After the winding step is completed, the wire bending jig abuts against the flatness of the other end side flange portion so that the front end portion thereof protrudes from the same position as the inner side surface of the other end side flange portion or closer to the core portion side. On the surface. Further, when the end line portions of the two lines are guided to the outside from the inner side of the other end side flange portion, the one line can be guided only to the outside of the flange portion without contacting the line bending jig, and is fixed to the electrode in the axial axis direction. . The other line is bent by being hooked between the front end portion of the wire bending jig and the other end side flange portion. This bending system is different from the crimping member of the prior winding device, and since the wire is bent only in the lateral direction, the load applied to the wire can be reduced, and damage or disconnection can be suppressed. After the wire is bent, the state of the final wire tension is maintained and connected to the corresponding electrode. In this case, the end line portion of the wire is connected and fixed to the electrode in a direction inclined parallel to the axial axis direction or in parallel. Here, since the line between the core portion and the electrode is changed in angle by the bending jig in the middle, the distance between the line and the electrode having a different potential can be ensured, and the risk of occurrence of a short circuit can be reduced. In this way, the coil part is completed.

The core used for the coil component has a type of a groove portion at a portion between the electrodes of the flange portion and a type having no groove portion (forming an electrode on a flat surface). In the case of a core having a groove portion type, a portion connected to the electrode of the start line portion/terminal portion of the wire and a portion wound around the core portion due to the step difference between the electrode and the core portion The floating portion of the inclined portion is generated in the groove portion. When the suspended wiring portion in the oblique direction is generated, the suspended wiring portion is externally contacted by other components or the like, so that the risk of disconnection becomes high. Further, after the coil component is soldered to the mounting substrate, the surface of the coil is covered with the moisture-proof coating resin. However, since the moisture-proof coating resin enters the groove portion and the resin repeatedly expands and contracts due to temperature change, the stress repeatedly acts on the surface. The suspended wiring section also has the possibility of causing wire breakage. On the other hand, in the coil component of the type which does not have a groove part, since the flange part exists in the start line part / the terminal line part along the line, it is difficult to generate a dangling wiring part. The present invention relates to an improvement of the coil component of the type having no groove portion in the end portion of the electrode connection line of the other end side flange portion.

The "flat surface" of the flange portion does not need to be a completely flat surface as long as it is not fitted. The degree of wire bending fixture is sufficient, and there may be slight irregularities or steps. The portion where the wire bending jig abuts between the electrodes of the other end side flange portion means not only the case where the bending jig abuts against the blank portion between the electrodes on the flange portion, but also the bending jig partially covering the electrode on. The actuating direction of the wire bending jig may be, for example, actuated in the up and down direction with respect to the other end side flange portion, or may be actuated in the horizontal direction or may be actuated in the rotational direction. In a state in which the linear bending jig abuts on the flat surface of the other end side flange portion, the end line portion of the wire can be bent as long as the gap between the wire bending jig and the other end side flange portion is smaller than the wire diameter of the wire .

The shaft core may be configured to have a side portion on the core side of the flange portion or a partition portion having no electrode between the flange portion and the core portion. Here, the spacer portion is an electrodeless portion that is spaced apart from the core portion and the electrode in the axial direction of the core. When the spacer is formed with such a spacer, since the distance between the electrode having a different line and the potential can be increased by the length of the spacer, there is an advantage that the risk of short-circuiting can be further reduced. The partition portion may be provided on a side portion of the flange portion on the core side, or may be provided between the flange portion and the core portion.

In the case of a 3-wire common mode choke coil, the end line of the 3 lines, 2 lines or 1 line is close to the electrodes of different potentials, and the risk of short circuit is higher than that of the 2-wire common mode choke coil. high. When the present invention is applied to, for example, a 3-wire common mode choke coil, the front end portion of the wire bending jig may be formed in a two-strand shape, and two hooks may be hooked between each of the front end portions and the other end side flange portion. Line and bend. In other words, three electrodes may be formed on the flange portions on the one end side and the other end side of the axial core, and two of the electrodes that are respectively abutted between the electrodes of the other end side flange portion may be provided in the wire bending jig. The construction of the convex part. In this case, the distance between the end line portion of the two lines and the electrodes of different potentials can be ensured, and the risk of occurrence of a short circuit can be reduced.

Furthermore, in the case of a 3-wire common mode choke coil, the metal bending jig may be provided with a flat surface abutting only the other end side flange portion at the farthest position from the final winding position of the core portion. The configuration of a convex portion of a portion between the electrode of the position and the electrode adjacent thereto. In this case, only the line connecting the electrodes located farthest from the final roll position can be connected. Bending by a wire bending fixture. Therefore, as described above, the operation of the outlet of the drawing line can be simplified and the working time can be shortened as compared with the case where the final line portions of the two lines are bent. Alternatively, the present invention can be applied similarly to a 4-wire common mode choke coil or a pulse transformer type coil using 4 lines.

In the present invention, the rotation mechanism is configured to clamp one end side flange portion of the shaft core and to rotate, and the wire bending jig may be configured to be provided in a fixing portion different from the rotation mechanism. The method of rotating the shaft core has a one-side support mode and a side support mode. In the one-side support mode, it is not necessary to clamp the other end side flange portion, and it is not necessary to align the shaft core, so that the drive mechanism can be simplified. In this case, the wire bending jig of the present invention is provided in a fixing portion different from the rotating mechanism, whereby only the wire bending jig can be actuated when the end line portion of the connecting wire is connected, and the mechanism can be simplified while being reduced. The risk of a short circuit.

As described above, according to the winding method and the winding device of the present invention, the wire bending jig is brought into contact with the flat surface of the other end side flange portion, and the end line portion of at least one line is hooked to the wire bending jig and the other Since the one end side flange portion is bent in the lateral direction, the load is not applied to the wire as in the conventional winding device, so that the wire can be damaged and the flaw or the wire can be suppressed. After the bending line, since the final line portion is connected to the corresponding electrode, the distance between the line and the electrode having a different potential can be ensured, and the risk of short circuit can be reduced. As a result, coil parts with higher reliability can be provided.

Further, according to the coil component of the present invention, since the terminal line portion of at least one of the wires is bent in the lateral direction at the side edge portion of the core portion of the electrode and extends from the bent position toward the final winding position, the line and the line can be secured. The distance between electrodes with different potentials and the risk of short circuits. As a result, coil parts with higher reliability can be provided. Further, since only the end line portion of the wire is bent in the lateral direction, the load is not applied as in the case of pressing the wire or the like as before, so that the wire can be damaged and the flaw or the wire can be suppressed.

1‧‧‧ coil parts

1A‧‧‧ coil parts

1B‧‧‧3 line common mode choke coil

1C‧‧‧3 line common mode choke coil

1D‧‧‧3 line common mode choke coil

1E‧‧3 line common mode choke coil

1F‧‧‧pulse transformer

1G‧‧‧2 line common mode choke coil

2‧‧‧Axis core

3‧‧‧core core

3a‧‧‧Starting position

3b‧‧‧End position

4‧‧‧Flange

4a‧‧‧flat surface

4c‧‧‧Interval

4d‧‧‧Interval

4e‧‧‧Interval

5‧‧‧Flange

5a‧‧‧flat surface

5c‧‧‧Interval

5d‧‧‧Interval

5e‧‧‧Interval

6a~6d‧‧‧electrode

7a~7d‧‧‧electrode

10‧‧‧ line

10a‧‧‧Starting Department

10a ₁ ‧‧‧Connecting Department

10b‧‧‧Endline Department

10b ₁ ‧‧‧Connecting Department

10b ₂ ‧‧‧Wiring Department

11‧‧‧ line

11a‧‧‧Starting Department

11a ₁ ‧‧‧Connecting Department

11a ₂ ‧‧‧Wiring Department

11b‧‧‧Endline Department

11b ₁ ‧‧‧Connecting Department

11b ₂ ‧‧‧Wiring Department

12‧‧‧ line

12a‧‧‧Starting Department

12a ₁ ‧‧‧Connecting Department

12a ₂ ‧‧‧Wiring Department

12b‧‧‧Endline

13‧‧‧ line

13a‧‧‧Starting Department

13b‧‧‧Endline

20‧‧‧winding device

21‧‧‧Spindle fixture

22‧‧‧ Body Department

22a‧‧‧Clamping Department

23a‧‧‧Clamping Department

23‧‧‧movable department

24‧‧‧Servo motor

25‧‧‧Wire clamp

26a‧‧‧hook

26b‧‧‧hook

27‧‧‧Support fixture

30‧‧‧Support desk

31‧‧‧Wire clamp

32a‧‧‧hook

32b‧‧‧hook

33‧‧‧Activity device

34‧‧‧Line bending fixture

35‧‧‧Line bending fixture

35a‧‧‧ convex

35b‧‧‧ convex

35c‧‧‧Linking Department

36‧‧‧Line bending fixture

36a‧‧‧Gap section

37‧‧‧Line bending fixture

37a‧‧‧ convex

37b‧‧‧ convex

37d‧‧‧C face

38‧‧‧Line bending fixture

39‧‧‧Line bending fixture

40‧‧‧Outlet

41‧‧‧Outlet

45‧‧‧ heating film

46‧‧‧ heating film

50‧‧‧actuating device

51‧‧‧Cylinder block

52‧‧‧Fixed Department

53‧‧‧ pole

54‧‧‧Line bending fixture

60‧‧‧actuating device

61‧‧‧Motor

62‧‧‧ Fixed Department

63‧‧‧Leverage

64‧‧‧Line bending fixture

70‧‧‧actuator

71‧‧‧Cylinder

72‧‧‧ Fixed Department

73‧‧‧ rod

74‧‧‧Line bending fixture

74a‧‧‧ claws

75‧‧‧Axis

76‧‧‧ stretching spring

100‧‧‧ coil parts

101‧‧‧ shaft core

102‧‧‧core core

103‧‧‧Flange

104‧‧‧Flange

105~108‧‧‧electrode

110‧‧‧ line

110a‧‧‧Starting Department

110b‧‧‧Endline

110b ₁ ‧‧‧Connecting Department

110b ₂ ‧‧‧Wiring Department

120‧‧‧ line

120a‧‧‧Starting Department

120a ₁ ‧‧‧Connecting Department

120a ₂ ‧‧‧Wiring Department

120b‧‧‧Endline

200‧‧‧ coil parts

201‧‧‧Fig.

300‧‧‧3 line common mode choke coil

301~303‧‧‧ line

301b‧‧‧Endline Department

302a‧‧‧Starting Department

302b‧‧‧Endline

303a‧‧‧Starting Department

304‧‧‧electrode

305‧‧‧electrode

308‧‧‧electrode

309‧‧‧electrode

310‧‧‧Fig.

400‧‧‧3 line common mode choke coil

P1‧‧‧ bending point

P2‧‧‧ bending point

S1‧‧‧ touch points

S2‧‧‧ touch points

S3‧‧‧ close

S4‧‧‧ close

S5‧‧‧ close

S6‧‧‧ close

X‧‧‧ coordinate axis

Y‧‧‧ coordinate axis

Z‧‧‧ coordinate axis

Δ1‧‧‧ distance

Δ2‧‧‧ distance

1(a) to 1(d) are a plan view, a front view, a cross-sectional view taken along line A-A, and a cross-sectional view taken along line B-B of a first embodiment (2-wire common mode choke coil) of a wound coil component according to the present invention.

Fig. 2 is a front view (a) and a plan view (b) showing an example of the winding device of the present invention.

Fig. 3 is a front view (a) and a plan view (b) of the first step of the winding device shown in Fig. 2.

Figure 4 is a front view (a) and a plan view (b) of the second step of the winding device shown in Figure 2.

Fig. 5 is a front view (a), a plan view (b), and a C-C line cross-sectional view (c) of the third step of the winding device shown in Fig. 2.

Figure 6 is a partial perspective view of the third step.

7(a) and 7(b) are a plan view and a cross-sectional view taken along line B-B of a second embodiment (3-wire common mode choke coil) of the wound coil component of the present invention.

Fig. 8 is a plan view showing a method of bending the end portion of the coil component shown in Fig. 7.

9(a) and 9(b) are perspective views showing a method of bending the end portion of the coil component shown in Fig. 7 and a wire bending jig.

Fig. 10 (a) and (b) are perspective views showing other examples of the coil bending jig.

Fig. 11 is a plan view showing a third embodiment (3-wire common mode choke coil) of the wound coil component of the present invention.

Fig. 12 is a partial plan view showing a modification of the coil component shown in Fig. 11.

Figure 13 is a plan view showing a fourth embodiment of the 3-wire common mode choke coil of the present invention.

Figure 14 is a perspective view showing a fifth embodiment of the 3-wire common mode choke coil of the present invention.

Figure 15 is a perspective view showing a sixth embodiment of the 3-wire common mode choke coil of the present invention.

16(a) and 16(b) are a plan view and a side view showing a seventh embodiment of the present invention applied to a pulse transformer.

Figure 17 is a plan view showing an eighth embodiment of the 2-wire common mode choke coil of the present invention.

Fig. 18 is a schematic side view showing another example of an actuating device for actuating a metal bending jig.

Figure 19 is a schematic view showing another example of an actuating device for actuating a metal bending jig. Slightly side view.

20(a) to (c) are schematic side views showing other examples of an actuating device for actuating a metal bending jig.

Figure 21 is a top plan view of an example of a prior 2-wire common mode choke coil.

22(a) and 22(b) are a plan view and a cross-sectional view taken along line B-B of another example of the conventional 2-wire common mode choke coil.

23(a) and 23(b) are plan views showing an example (a) and other examples (b) of the conventional 3-wire common mode choke coil.

- First embodiment of the coiled coil component -

Fig. 1 is an example of a coil component 1 manufactured by the winding method of the present invention, and an example of a 2-wire common mode choke coil is shown here. The coil component 1 is provided with a core 2 including a magnetic body. The axial core 2 has a winding core portion 3 at its central portion, and has a pair of flange portions 4 and 5 at both axial end portions. The core portion 3 is formed in a rectangular parallelepiped shape having upper and lower surfaces and both side surfaces, and two wires 10 and 11 are arranged and wound around the circumferential surface of the winding core portion 3. In addition, in FIG. 1, the axial direction of the axial core 2 is set to the Y-axis, the horizontal direction perpendicular thereto is set to the X-axis, and the vertical direction is set to the Z-axis.

The flat surfaces 4a and 5a are formed on the mounting surface side of the flange portions 4 and 5 (the upper side is shown in FIG. 1 but on the lower surface side when mounted on the circuit board), and the flat surface is along the X-axis direction. Each of the two electrodes 6a and 6b and the electrodes 7a and 7b are formed at intervals. Flat surfaces 4a and 5a are exposed between the electrodes 6a and 6b and between the electrodes 7a and 7b. The electrodes 6a to 7b are formed of a base electrode having a film layer of 10 to 30 μm formed of, for example, Ag, Ag-Pd, Ag-Pt or the like, and Ni, Sn, Sn-Pd, or the like formed thereon. It is formed by a plating layer of about 30 μm. Further, the base electrode is usually formed by DIP coating, printing, sputtering, or the like. At this time, the electrodes 6a to 7b formed on the top surfaces of the flange portions 4 and 5 may be formed substantially in substantially the same shape and substantially the same area.

The wires 10 and 11 are formed of metal wires of Cu, Ag, Au, etc., and are formed on the surface thereof. There is an insulating film. The start line portions 10a and 11a of the wires 10 and 11 are connected and fixed to the electrodes 6a and 6b of the one end side flange portion 4 so as to be substantially parallel to the axis axis of the shaft (at substantially right angles to the outer wall surface of the flange portion 4). On the other hand, the end line portion 11b of the wire 11 is connected and fixed to the electrode 7b of the other end side flange portion 5 substantially parallel to the axis of the shaft core (substantially at right angles to the outer wall surface of the flange portion 5), and the wire 10 is The final wire portion 10b is connected and fixed to the electrode 7a of the other end side flange portion 5 in a direction inclined with respect to the axis of the axis. As the joining or joining fixing method, various methods such as welding, thermocompression bonding, welding, spot welding, and the like are used.

As shown in FIG. 1(c), the starting line portion 10a of the first wire 10 is connected and fixed to the top surface of the electrode 6a in the axial direction of the core, and is oriented in the longitudinal direction from the inner wall edge of the flange portion 4 toward the winding core portion 3 (Z direction). ) is bent and wound at the shortest distance toward the starting position 3a of the winding core portion 3. The starting line portion 11a of the other wire 11 has a connecting portion 11a ₁ which is connected and fixed to the top surface of the electrode 6b in the axial axis direction, and an inner edge of the flange portion 4 which is bent in the lateral direction at the inner edge of the flange portion 4 The wiring portion 11a ₂ linearly extending toward the winding position 3a of the winding core portion 3 is wound toward the winding core portion 3. Since the angle between the connection portion 11a ₁ and the wiring portion 11a ₂ of the start line portion 11a changes, the distance δ1 between the start line portion 11a of the line 11 and the electrode 6a having a different potential can be secured (see Fig. 1(a)). And can suppress short circuit. Further, "bending in the lateral direction" means that an angle change occurs between the connecting portion 11a _{1 of the} line portion 11a of the line 11 and the wiring portion 11a ₂ as viewed from the direction opposite to the electrode.

And, FIG. 1 (d), the line end of the line 10 which line wiring portion 10b from the portion 10b ₂ of the winding core portion 3 is inclined toward the roll-finishing position 3b is withdrawn upward, and in the inner side surface of the flange portion 5 of the After the upper edge (bending point P1) is bent in the lateral direction, the connecting portion 10b ₁ is connected and fixed to the electrode 7a in a direction inclined with respect to the axial axis direction. In this manner, since the end line portion 10b is angularly changed between the wiring portion 10b ₂ and the connecting portion 10b ₁ , the distance δ2 between the line 10 and the electrode 7b having a different potential can be secured (see FIG. 1( a )), and Reduce the risk of short circuits. The end line portion 11b of the other wire 11 is taken out from the final winding position 3b of the winding core portion 3 in the upward direction, and is bent in the longitudinal direction at the inner edge of the flange portion 5, and is connected to the electrode 7b in the axial axis direction. .

1 shows the starting line portion 10a of the wires 10, 11 connected to the electrodes 6a, 6b, 11a is parallel to the axis of the shaft core, and the end line portion 11b of the line 11 connected to the electrode 7b is also parallel to the axis of the shaft core, but is not necessarily strictly parallel, and there is also an induction direction according to the line, or an electrode position and a core portion. The relationship between the sides produces a tilt.

The coil component 1 of the present embodiment configured as described above has the following effects.

(1) Since the wire is not close to or in contact with the adjacent electrode, the insulation reliability is high.

(2) Since the electrode area of the electrode is substantially uniform, the crimping quality and the electrode fixing force can be stably ensured.

(3) Since the winding width is effectively used, the number of windings is obtained, and the L value is easily obtained.

(4) Since the end portion 10b of the wire 10 is not excessively bent, damage such as breakage or scratch is less.

(5) The end line portion 10b of the wire 10 extends linearly from the final winding position 3b, and is bent to the electrode 7a immediately after being bent near the inner edge of the electrode 7a, so that the wire 10 does not slack.

- Winding device -

Fig. 2 is a view showing an example of a winding device for winding the wires 10 and 11 of the above-described winding-type coil component 1. The winding device 20 basically includes a spindle jig 21, a support table 30, and outlet ports 40 and 41 for extracting two wires 10 and 11. Here, the direction in which the spindle jig 21 and the support table 30 are opposed to each other (axis axis direction) is the Y axis, the direction orthogonal thereto (horizontal direction) is the X axis, and the vertical direction is the Z axis.

The spindle jig 21 includes a main body portion 22 and a movable portion 23, and the movable portion 23 is movable in the approaching and separating directions (X-axis direction) with respect to the main body portion 22 by an actuator (not shown). The main body portion 22 and the movable portion 23 can hold both side edges of the flange portion 4 on the start line side of the shaft core 2 between the clamp portions 22a and 23a, that is, both side edges in the X-axis direction. Here, the core 2 is held such that the electrodes 6a to 7b face upward. A servo motor 24 that rotates the main body portion 22 and the movable portion 23 integrally with the horizontal axis (Y axis) as a central axis is provided at a rear portion of the main body portion 22. A wire clamp 25 and two hook pins 26a and 26b are provided on the upper surface of the body portion 22. The position of the hook pins 26a, 26b is It is set such that one end of the wires 10, 11 is fixed to the wire clamp 25, and when the wires 10, 11 are hooked to the hook pins 26a, 26b, respectively, when the wire outlets 40, 41 are moved in the Y-axis direction, The line portions 10a and 11a of the wires 10 and 11 can be disposed at positions on the central portion of the electrodes 6a and 6b in the Y-axis direction (parallel to the axis of the axis).

The support table 30 is a member fixed to a specific position, and a wire clamp 31 and two hook pins 32a and 32b are provided on the upper surface thereof. The position of a hook pin 32a is set such that the wire 10 is withdrawn from the axis 2 in a state of being hooked on the wire bending jig 34 described below, and when hooked to the hook pin 32a, the terminal portion 10b of the wire 10 is inclined across The position on the electrode 7a. The position of the other hook pin 32b is set such that the end line portion of the wire 11 drawn from the core core 2 is hooked on the hook pin 32b, respectively, and when fixed to the wire clamp 31, the terminal portion 11b of the wire 11 is on the electrode 7b. The position is substantially parallel to the axis of the shaft. A bending jig 34 that is rotatable about the X-axis by bending the jig actuating device 33 is attached to the support table 30. That is, the wire jig 34 is rotatable at two positions of the rising position and the lowering position, and the wire bending jig 34 abuts against the upper surface of the flange portion 5 of the core 2 at the lowering position, and the front end of the wire bending jig 34 is larger than the flange portion. The inside of the 5 is more prominent to the side of the core. The width dimension (X-direction dimension) of the wire bending jig 34 is desirably set to be smaller than the blank portion between the electrodes 7a and 7b so that the wire bending jig 34 does not cover the electrodes 7a and 7b. Further, as the bending jig actuating device 33, any device such as a motor or a rotary actuator can be used.

A support jig 27 that can be lifted up and down is disposed between the spindle jig 21 and the support table 30. The support jig 27 is retracted to the lower side during the winding operation of the wire, and rises after the winding of the wire is completed, and supports the core 2 from below. Therefore, even if the wire bending jig 34 presses the other end side flange portion 5 from above, the shaft core 2 can be supported by the support jig 27, thereby preventing breakage of the shaft core 2 or falling off of the main shaft jig 21. Further, the support jig 27 can also support the core 2 when the heating wires 46 to connect the terminal portions 10b and 11b of the wires 10 and 11 to the electrodes 7a and 7b.

In addition, although the bending jig actuating device 33 is provided in the support stand 30 in FIG. 2, it may be provided in the fixing part different from the support stand 30. Moreover, the actuating direction of the wire bending jig 34 is not limited to being rotated about the horizontal axis, for example, it may be ascending or descending in the up and down direction, or may be along the water. Move in the flat direction. The metal bending jig 34 of this embodiment has a rectangular parallelepiped shape and has a shape as long as it has a function of the hooking line 11 between the other end side flange portion 5.

The outlet ports 40 and 41 are respectively held by holding members (not shown), and are movable in the XY direction (or the XYZ direction), and the line interval can be freely changed. Heated sheets 45 and 46 that are movable in the vertical direction are disposed above the flange portions 4 and 5 of the core 2 . The heater chip 45 is lowered in a state where the line portions 10a and 11a of the wires 10 and 11 are disposed on the electrodes 6a and 6b, and the start line portions 10a and 11a are connected to the electrodes 6a and 6b. The other heater chip 46 is lowered in a state where the terminal portions 10b and 11b of the wires 10 and 11 are disposed on the electrodes 7a and 7b, and the terminal portions 10b and 11b are connected to the electrodes 7a and 7b. Further, when the heating piece 46 is actuated, the metal bending jig 34 is also brought into contact with the flange portion 5, so that it does not interfere with the metal bending jig 34, and the heating piece 46 can be set to heat only the electrode 7a. The convex shape of the two strands of 7b.

- Actuation instructions for the winding device -

Here, the operation of the winding device 20 including the above configuration will be described with reference to Figs. 3 to 5 . Figure 3 shows the first step. In the first step, the jig portions 22a and 23a of the spindle jig 21 hold the both side faces of the flange portion 4 of the shaft core 2 so that the electrodes 6a to 7b face upward. One end of the wires 10, 11 drawn from the outlets 40, 41 is fixed to the wire clamp 25, and the wires 10, 11 are respectively hooked on the hook pins 26a, 26b, so that the outlets 40, 41 are facing The shaft core 2 moves in the Y-axis direction. In other words, the start line portions 10a and 11a of the wires 10 and 11 are guided to the inner side from the outer side of the one end side flange portion 4, and the start line portions 10a and 11a are arranged on the electrodes 6a and 6b in the Y-axis direction. In this state, the heater chip 45 is lowered, and the start line portions 10a and 11a are connected to the electrodes 6a and 6b. After the connection, the heater chip 45 rises again.

4 is a second step of driving the servo motor 24 in a state where the outlet ports 40, 41 are moved from the axial core 2 in the lateral direction (X direction), and the spindle clamp 21 is rotated. That is, the shaft core 2 is rotated. The wire outlets 40 and 41 are moved in the Y direction and the X direction by the rotation, and the two wires 10 and 11 are wound side by side in the winding core portion 3 of the core 2 . Thereby, the line portions of the wires 10 and 11 are prevented from being placed in contact with the adjacent electrodes 6a and 6b, and are wound with a specific tension.

Fig. 5 is a third step of ending the winding operation of the winding core portion 3 for a specific number of times by the lines 10 and 11, and stopping the rotation of the spindle jig 21 at a position where the electrodes 6a to 7b are directed upward. Next, the wire bending jig 34 is rotated toward a position abutting on the upper surface of the flange portion 5 of the core 2 in a state where the support jig 27 is raised and the lower surface of the core 2 is supported. Next, the outlet ports 40 and 41 are moved in the XY direction, and the terminal portion 10b of the one wire 10 is hooked between the wire bending jig 34 and the other end side flange portion 5 from the other end side flange portion 5. The inner side is guided to the outer side, whereby the final line portion 10b is bent and placed on the electrode 7a in the oblique direction. In the present embodiment, after the wire bending jig 34 is brought into contact with the other end side flange portion 5, the wire 10 is guided to the outside from the inside of the other end side flange portion 5, whereby the final line portion 10b is bent, so that The line 10 acts on an excessive pressing force, and there is no flaw in causing the line 10 to be scratched or broken. The final line portion 11b of the other wire 11 is linearly guided on the electrode 7b from the winding core portion, and is disposed on the electrode 7b in the Y-axis direction. After the two wires 10, 11 are respectively fixed to the wire clamp 31 via the hook pins 32a, 32b, the heater chip 46 is lowered, and the terminal portions 10b, 11b are connected to the electrodes 7a, 7b (as shown in Fig. 5(c) Show). The coil component 1 shown in Fig. 1 is completed by cutting the wires 10, 11 along the outer wall faces of the flange portions 4, 5 at the same time as or after the joining.

Figure 6 is a detailed view of the third step. As shown in the figure, the wire bending jig 34 is set to abut against the flat surface 5a of the flange portion 5, and the front end of the wire bending jig 34 protrudes to the same position as or closer to the inner side of the flange portion 5. The state of the core side. By hooking the end line portion 10b of the wire 10 to the outside between the wire bending jig 34 and the flange portion 5 from the inside of the flange portion 5, the terminal portion 10b is traversed over the electrode in the oblique direction. The configuration on the 7a. Therefore, the final wire portion 10b is fixed to the central portion of the electrode 7a by the heating sheet 46. Since the end line portion 10b of the wire 10 is bent at the intersection (specific position) of the side edge of the bending jig 34 and the upper edge of the flange portion 5, the bending position of the wire 10 does not shift. That is, the terminal portion 10b extending between the electrode 7a and the winding core portion 3 does prevent the contact with the electrode 7b from coming into contact with each other, and the risk of occurrence of a short circuit can be reduced. Therefore, it is possible to manufacture a coil component of stable quality. Alternatively, the bending position of the end line portion 10b of the wire 10, that is, the front end portion (corner portion) of the wire bending jig 34 may be appropriately formed. Face or R face, thereby reducing the load on the line.

- Second embodiment of the coiled coil component -

Fig. 7 is a view showing a second embodiment of the coil component. The coil component 1A is an example in which the present invention is applied to a three-wire common mode choke coil, and the same or corresponding portions as those in FIG. 1 are denoted by the same reference numerals, and the description thereof will not be repeated. Flat surfaces 4a and 5a are formed on the mounting surface side of the flange portions 4 and 5 of the core 2, and three electrodes 6a to 6c are formed on the flat surface in a direction perpendicular to the axial direction of the shaft core 2, 7a~7c. Therefore, a blank portion having no electrode is formed between the electrodes. Three lines 10, 11, and 12 are arranged and wound around the circumferential surface of the core portion 3. The start line portion 10a of the wire 10 is connected to the electrode 6a, the start line portion 11a of the wire 11 is connected to the electrode 6b, and the start line portion 12a of the wire 12 is connected to the electrode 6c. The direction in which the line portions 10a, 11a, and 12a of the wires 10, 11, and 12 are connected to the respective electrodes 6a to 6c, that is, the directions of the connecting portions 10a ₁ , 11a ₁ , and 12a ₁ is set to be substantially the axis axis direction. Starting portion 11a of the line wiring portion 11a _{2. 1} line 11a with respect to the connecting portion is bent in the transverse direction, starting line portion 12a of the wiring portion 12a _{2. 1} line 12a with respect to the connecting portion is bent in the transverse direction. Therefore, the start line portion 11a of the wire 11 is prevented from coming into contact with the electrode 6a of a different potential, and the start line portion 12a of the wire 12 is prevented from coming into contact with the electrode 6b of a different potential. The connection method of the line portions 10a, 11a, and 12a of the lines 10, 11, and 12 with respect to the electrodes 6a to 6c is the same as that of Fig. 3 for explaining the 2-line common mode choke coil, and the line portion of the line 10 to 12 can be used. 10a to 12a are guided to the inner side from the outer side of the one end side flange portion 4, and the starting line portions 10a to 12a are disposed on the electrodes 6a to 6c in the direction of the substantially axis axis.

The terminal portions 10b, 11b, and 12b of the wires 10, 11, and 12 are connected to the electrodes 7a to 7c, respectively. Here, since the terminal portion 12b of the wire 12 is drawn from the winding core portion 3 toward the upper electrode 7c, the electrode 7c is connected in the substantially axial axis direction. On the other hand, the end portions 10b and 11b of the wires 10 and 11 are drawn upward from the winding core portion 3, and are connected to the electrodes 7a and 7b in the oblique direction with respect to the axis axis. At this time, as shown in Figs. 8 and 9, on the flat surface 5a of the flange portion 5, that is, the blank portion between the electrodes 7a, 7b, and 7c, the convex portions 35a and 35b of the wire bending jig 35 are compared with the front end thereof. The inner side surface of the flange portion 5 is more protruded to the state of the core portion side. When the end portions 10b and 11b of the wires 10 and 11 are guided to the outside from the inside of the flange portion 5 in this state, the terminal portions 10b and 11b are hooked to the projections 35a and 35b of the wire bending jig 35 and the projections. Between the rims 5 and curved in the lateral direction. In other words, an angle change occurs between the connection portion 10b _{1 of the} terminal portion 10b and the wiring portion 10b ₂ , and an angle change occurs between the connection portion 11b _{1 of the} terminal portion 11b and the wiring portion 11b ₂ . Therefore, the terminal portions 10b and 11b of the wires 10 and 11 are bent back around the electrodes 7b and 7c having different potentials, and the distances δ1 and δ2 between the electrodes 7b and 7c and the terminal portions 10b and 11b can be ensured (refer to FIG. 7). . As a result, the risk of short circuit can be reduced.

In the embodiment, the wire bending jig 35 has a substantially U-shape in a plan view including two convex portions 35a and 35b that are in contact with the blank portions between the electrodes 7a to 7c, and a connecting portion 35c that connects the wires. In particular, the upper surface of the joint portion 35c is preferably formed to be lower than the upper surface of the convex portions 35a, 35b (it is desired to be the same height or lower than the upper surface of the electrode 7b). By passing the end line portion 11b of the wire 11 along the upper surface of the connecting portion 35c, it is possible to suppress the end line portion 11b from rising from the electrode 7b. Therefore, when the heater chip is lowered from above and the terminal portion 11b is connected to the electrode 7b, the terminal portion 11b can be connected to the end portion 11b without being bent.

Fig. 10 is a view showing various variations of the wire bending jig. Fig. 10(a) shows an example of a wire bending jig 36 which can be applied to a 2-wire common mode choke coil, and a notch portion 36a is formed on the lower surface of the front end portion thereof. The line is stabilized by the notch portion 36a to facilitate the hooking, and the bending of the wire can be easily performed. (b) of FIG. 10 is an example of a wire bending jig 37 which can be applied to a 3-wire common mode choke coil, that is, a C-face (cut surface) 37d is formed on the lower surface of the end portion before the convex portions 37a and 37b. By guiding the line with the C surface 37d, the line can be stabilized and bent. Further, the wire bending jig having the notch portion or the C surface may be applied to a pulse transformer such as the following, in addition to the 2-wire common mode choke coil and the 3-wire common mode choke coil.

- The third embodiment of the coiled coil component -

Fig. 11 is a view showing another example 1B of the 3-wire common mode choke coil of the third embodiment of the coil component. In the embodiment of FIG. 7, the electrodes 6a-6c, 7a-7c are continuously formed from the outer side surfaces of the flange portions 4, 5 to the inner side surface, but in this embodiment, the electrodes 6a-6c, 7a-7c are attached to the convex surface. Edge 4 and 5, the front side of the inner side is terminated, and the electrode-free spacers 4c and 5c are formed closer to the core side than the electrodes 6a to 6c and 7a to 7c. Therefore, the bending points P1 and P2 of the terminal portions 10b and 11b of the wires 10 and 11 are separated from the electrodes by the length of the spacer 5c, and as a result, the distance δ1 between the terminal portion 10b of the wire 10 and the electrode 7b can be enlarged. The distance between the end line portion 11b of the 11 and the electrode 7c is δ2, and the risk of short-circuiting can be further reduced.

Fig. 12 is a view showing a variation of Fig. 11. In Fig. 12, the bending points P1, P2 of the end line portions 10b, 11b of the lines 10, 11 are changed to any position within the blank range d between the electrodes. Even if the bending points P1 and P2 are changed in the X-axis direction, the distance δ1 between the terminal portion 10b and the electrode 7b and the distance δ2 between the terminal portion 11b and the electrode 7c can be ensured by the spacer 5c, so that the short circuit can be reduced. risk.

- Fourth embodiment of the coiled coil component -

Fig. 13 shows another example 1C of a 3-wire common mode choke coil. The core shape and electrode shape of this embodiment are the same as those of the coil components shown in Figs. In the embodiment of FIGS. 8 and 9, two projections 35a having two blank portions that are in contact with the electrodes 7a to 7c formed on the other end side flange portion 5 of the core 2 are used. The wire bending jig 35 of 35b is used, but in this embodiment, a wire bending jig 38 having one convex portion that abuts only a blank portion located farther from the final winding position 3b in the two blank portions is used. In this case, since only the terminal portion 10b of the wire 10 is bent in the lateral direction by the wire bending jig 38, the distance δ1 between the terminal portion 10b of the wire 10 and the electrode 7b having a different potential can be secured.

In the case of using the two-strand line bending jig 35 shown in FIG. 8 and FIG. 9, in order to lay out three lines 10 to 12 and hook two of them to the wire bending jig 35, the action of the line outlet port becomes complicated. There is a possibility that the working time will be longer. On the other hand, when the wire bending jig 38 shown in FIG. 13 is brought into contact with the flange portion 5, it is only necessary to hook one wire 10 between the wire bending jig 38 and the flange portion 5, so that The utility model has the advantages that the operation of the wire outlet opening can be simplified, and the working time can be shortened.

In the embodiment of Fig. 13, the end line portion 11b of the wire 11 is straight from the final winding position 3b of the winding core portion 3. Linear (not bent in the lateral direction) is pulled and connected to the electrode 7b, so that there is a possibility that the terminal portion 11b is close to the adjacent electrode 7c. However, since the inner side portion (the side portion on the core portion side) of the flange portions 4, 5 of the shaft core 2 has the partition portions 4c and 5c having no electrodes, it is easy to ensure the end even if the end portion 11b is not bent. The distance between the line portion 11b and the electrode 7c is δ2, and the occurrence of a short circuit can be prevented. Further, the winding method of bending only one line 10 can also be applied to the axial core of the flange portions 4, 5 which does not have the spacer portions 4c, 5c, but is desirably applied even if the final line portion 11b of the line 11 is not horizontal. The direction is also bent so as not to be in contact with the electrode 7c.

- Fifth embodiment of the coiled coil component -

Fig. 14 shows still another example 1D of the 3-wire common mode choke coil. This embodiment is formed between the flange portions 4, 5 and the core portion 3, and is formed with the spacer portions 4d, 5d which are wider and have the same thickness as the core portion 3. The starting portion 3a of the winding core portion 3 and the electrodes 6a to 6c can be separated in the Y-axis direction by the partition portion 4d, and the short-circuiting between the starting portions 11a and 12a and the electrodes 6a and 6b having different potentials can be suppressed. Similarly, since the end portion 3b of the winding core portion 3 and the electrodes 7a to 7c are separated in the Y-axis direction by the partition portion 5d, the short-circuiting of the end portions 10b, 11b and the electrodes 7b, 7c having different potentials can be suppressed. . In Fig. 14, the end portions 10b and 11b of the two lines 10 and 11 are curved in the lateral direction. However, similarly to Fig. 13, the final line portion 11b of the center line 11 may be bent in the lateral direction without the electrode 7b. connection. Further, in Fig. 14, an example in which the electrodes 6a to 6c and 7a to 7c are provided only on the flat faces 4a and 5a of the flange portions 4 and 5 is shown, but it is of course also possible to be one of the sides of the flange portions 4 and 5. Set the electrodes.

- Sixth embodiment of the coiled coil component -

Fig. 15 shows still another example 1E of the 3-wire common mode choke coil. In this embodiment, between the flange portions 4, 5 and the winding core portion 3, the flat faces 4a, 5a of the flange portions 4, 5 from which the electrodes 6a to 6c, 7a to 7c are formed are formed toward the core portion 3 The upper surface is inclined by the partition portions 4e, 5e. The starting portion 3a of the winding core portion 3 and the electrodes 6a to 6c can be separated in the Y-axis direction by the partition portion 4d, and the risk that the starting portions 11a and 12a and the electrodes 6a and 6b having different potentials are short-circuited can be reduced. Similarly, the final winding position 3b of the core portion 3 and the electrodes 7a to 7c can be made by the partition portion 5d. Since they are spaced apart in the Y-axis direction, the risk of short-circuiting of the terminal portions 10b and 11b and the electrodes 7b and 7c having different potentials can be reduced. In Fig. 15, the terminal portions 10b and 11b of the two wires 10 and 11 are bent in the lateral direction. However, similarly to Fig. 13, the terminal portion 11b of the center line 11 may be bent in the lateral direction without the electrode. 7b connection. Further, although the electrodes 6a to 6c and 7a to 7c are provided only on the flat surfaces of the flange portions 4 and 5 in Fig. 15, it is needless to say that the electrodes may be provided in one of the spacer portions 4e and 5e.

- The seventh embodiment of the coiled coil component -

Fig. 16 is a view showing an example in which the present invention is applied to a pulse transformer. Fig. 16(a) is a plan view and (b) is a side view. The pulse transformer 1F has four electrodes 6a to 6d on the flat surface of the one end side flange portion 4 of the shaft core 2, and four electrodes 7a to 7d on the flat surface of the other end side flange portion 5. A wide blank portion having no electrode is formed between the two electrodes 6b and 6c in the center and between the electrodes 7b and 7c. First, the first line portions 10a and 11a of the two lines 10 and 11 are connected to the electrodes 6b and 6d in the axial direction, and the wires 10 and 11 are wound around the core portion 3 in the counterclockwise direction, for example. After the winding is completed, the wire bending jig 39 abuts against the space between the electrodes 7b, 7c of the flange portion 5, and the final wire portion 10b of the wire 10 is connected to the electrode 7a in the axial axis direction, and the terminal portion of the wire 11 11b is bent in the lateral direction between the wire bending jig 39 and the upper surface of the flange portion 5, and is connected to the electrode 7c in the oblique direction.

Next, the first line portions 12a, 13a of the other two lines 12, 13 are connected to the electrodes 6a, 6c in the axial direction, and the wires 12, 13 are wound in the opposite direction (for example, clockwise direction) from the lines 10, 11. In the core portion 3. After the winding is completed, the wire bending jig 39 is abutted on the blank portion between the electrodes 7b and 7c of the flange portion 5, and the terminal portion 13b of the wire 13 is connected to the electrode 7d in the axial axis direction, and the terminal portion of the wire 12 12b is bent in the lateral direction between the line bending jig 39 and the upper surface of the flange portion 5, and is connected to the electrode 7b in the oblique direction.

Thus, in the pulse transformer 1F in which four wires are wound, the bending of the two wires 11, 12 can be performed by the common wire bending jig 39. In this case as well, since the wires 11 and 12 can be bent without applying an excessive load by the wire bending jig 39, the risk of occurrence of a short circuit between the wires 11 and 12 and the electrodes of different potentials (for example, 7b, 7c) can be suppressed.

- The seventh embodiment of the coiled coil component -

Fig. 17 shows an example of a 2-wire common mode choke coil 1G in which the axial core 2 having the same width dimension as that of the core portion 3 is used. The same or corresponding portions as those in FIG. 1 are denoted by the same reference numerals and the description thereof will not be repeated. In this case, the line portions 10a, 11a of the wires 10, 11 are connected in the direction of the axis axis with respect to the electrodes 6a, 6b as in Fig. 1, and the terminal portions 10b, 11b of the wires 10, 11 are all along the axis. The core axis direction is obliquely connected to the electrodes 7a, 7b. The reason why the terminal portion 10b of the wire 10 is connected in the oblique direction with respect to the electrode 7a is caused by the bending caused by the wire bending jig as in the above embodiment, and the terminal portion 11b of the wire 11 is connected in the oblique direction with respect to the electrode 7b. The reason is because the center winding position 3b of the core portion 3 and the center of the electrode 7b are shifted in the width direction (X direction).

Fig. 18 is a view showing another example of an actuating device for actuating a wire bending jig. In the actuating device 50, the cylinder block 51 is fixed to the fixing portion 52 in the oblique direction, and the wire bending jig 54 is fixed to the front end of the rod 53 which is movable forward and backward and provided at the cylinder 51. By actuating the cylinder 51, the wire bending jig 54 can be moved back and forth between a position that abuts against the upper surface of the flange portion 5 and a position that is retracted upward.

Fig. 19 is a view showing still another example of an actuating device for actuating a wire bending jig. In the actuating device 60, the motor 61 is fixed to the fixing portion 62, and the wire bending jig 64 is attached at an anterior end of the lever 63 rotatably attached to the motor 61 at an angle changeable. By actuating the motor 61, the wire bending jig 64 rotates between a position that abuts against the upper surface of the flange portion 5 and a position that retreats toward the rear. In this embodiment, since the wire bending jig 64 can be changed in angle, it can be in close contact with the upper surface of the flange portion 5.

Fig. 20 is a view showing another example of an actuating device for actuating a wire bending jig. In the actuating device 70, the cylinder block 71 is fixed to the fixing portion 72 in the horizontal direction, and is movable forward and backward at the front end of the rod 73 provided in the cylinder 71, and the wire bending jig 74 is rotatably mounted with the shaft 75 as a fulcrum. A claw portion 74a that abuts against the upper surface of the flange portion 5 is formed on the front surface of the wire bending jig 74. A tension spring 76 is disposed between the rod 73 and the wire bending jig 74, and is always counterclockwise (The direction in which the claw portion 74 is separated from the axial core 2) applies a force to the wire bending jig 74.

Fig. 20(a) shows the retracted state of the wire bending jig 74, the wire bending jig 74 is separated from the core 2, and the wire bending jig 74 is rotated in the counterclockwise direction about the shaft 75 by the elastic force of the spring 76. position. (b) of FIG. 20 shows a state in which the wire bending jig 74 is advanced by the cylinder 71, and the lower end portion of the metal bending jig 74 abuts against the side surface of the core 2. (c) of Fig. 20 shows a state in which the metal bending jig 74 is further advanced. When the metal bending jig 74 is pressed, the lower end portion abuts against the side surface of the core 2, whereby the metal bending jig 74 acts as a clockwise torque centering on the shaft 75, and the wire bending jig 74 is resisted against the spring 76. Rotate clockwise. Thereby, the claw portion 74a of the wire bending jig 74 can be brought into contact with the upper surface of the flange portion 5 of the core 2. When the cylinder 71 moves backward, it returns to the state of (a) of FIG.

The actuating device shown in Figures 18 to 20 can also be applied to various coil components such as a 2-wire common mode choke coil, a 3-wire common mode choke coil, and a pulse transformer.

In the winding device of the above-described embodiment, the one end side flange portion of the shaft core 2 is clamped by the spindle clamp 21, and the other end side flange portion is not clamped, but the support table 30 may be used for clamping. The clamp mechanism of the other end side flange portion, and the support base 30 is configured to be driven to rotate or integrally rotate with respect to the spindle clamp 21. In this case, the wire bending jig and the actuating device thereof may be provided on the support table 30 or may be provided in other fixing portions. When the wire bending jig is placed on the support rotating or integrally rotating support table, the step of abutting the wire bending jig to the other end side flange portion may be before the step of fixing the start line portion of the wire to the electrode Or it may be before the step of winding the wire in the core.

Although a plurality of embodiments of the present invention have been described with reference to the drawings, the constituent elements of the embodiments may be applied to other embodiments, and the features of the embodiments may be combined. For example, the metal bending jig used in the 2-wire common mode choke coil and its actuating device can also be applied to a 3-wire common mode choke coil or a pulse transformer, and the spacer portion disposed in the 3-wire common mode choke coil can also be applied. 2-wire common mode choke coil or pulse transformer.

1‧‧‧ coil parts

2‧‧‧Axis core

3‧‧‧core core

5‧‧‧Flange

5a‧‧‧flat surface

7a~7b‧‧‧electrode

10b‧‧‧Endline Department

10b ₁ ‧‧‧Connecting Department

10b ₂ ‧‧‧Wiring Department

11b‧‧‧Endline Department

34‧‧‧Line bending fixture

X‧‧‧ coordinate axis

Y‧‧‧ coordinate axis

Z‧‧‧ coordinate axis

Claims (9)

A multi-winding method for winding a plurality of wires in a core portion of a core to form a multi-wire winding method of a coil component, and is attached to one end side and the other end of the axial direction of the shaft core Each of the sides has a flange portion, and has a flat surface on the mounting surface side of each flange portion, and a multi-wire winding method in which a plurality of electrodes connected to the respective lines are formed at intervals on the flat surface, and includes: a step of guiding the start line portion of the line from the outer side of the one end side flange portion of the shaft core, and connecting the start line portion of each line to the electrode of the one end side flange portion; and the plurality of lines are opposed to the shaft core a direction in which the axial direction is directed to the lateral direction, and the plurality of wires are wound together in the winding core portion; the wire bending jig is brought into contact with the flat surface of the other end side flange portion of the axial core, and the plurality of electrodes are And the step of causing the front end of the wire bending jig to protrude from the same position as the inner side surface of the other end side flange portion or closer to the core portion side; and the end line portion of the plurality of lines from the shaft Inside the other end side flange of the core a step of guiding the outer side, and bending at least one of the plurality of lines among the line bending jig and the other end side flange portion; and connecting the end line portions of the plurality of lines to the corresponding one The step of the electrode on the flange portion of the one end side. The multi-wire winding method of claim 1, wherein the operation direction of the wire bending jig is opposite to the upper end side flange portion. A multi-wire winding device for winding a plurality of wires in a core portion of a shaft core to form a multi-wire winding device for a coil component, and having a flange portion at one end side and the other end side in the axial direction of the shaft core And having flat on the mounting surface side of each flange portion a multi-wire winding device having a plurality of electrodes connected to the respective lines, wherein the plurality of wire winding devices are characterized by: a plurality of nozzles, which are respectively supplied to the wires; a moving mechanism that moves the plurality of outlet ports; a rotating mechanism that rotates the shaft core about its axis; a bonding device that connects the wire to the electrode; and a wire bending fixture that abuts against the shaft core a flat surface of the other end side flange portion and between the plurality of electrodes; and an actuating device for actuating the line bending jig; and the starting line portion of the plurality of lines from the axis by the outlet port One of the outer end flange portions of the core is guided to the inner side, and each of the wires is disposed on the electrode of the one end side flange portion and connected by the joint means, and the plurality of wires are guided to the lateral direction with respect to the axial direction of the axial core. And rotating the shaft core and winding the plurality of wires together in the winding core portion, so that the wire bending jig protrudes at the same position or at the same position as the inner side surface of the other end side flange portion of the shaft core Close to the winding core side, abutting against the flat surface of the other end side flange portion, the end line portion of the plurality of lines is from the other end side flange portion of the shaft core by the outlet opening The inner side guide outer side, and at least one of the plurality of line lines is bent between the line bending jig and the other end side flange portion, and the terminal line portions of the plurality of lines are arranged It is connected to the electrode of the other end side flange portion and connected by the above-mentioned bonding device. The multi-winding device of claim 3, wherein the operation direction of the wire bending jig is in a downward direction with respect to the other end side flange portion. The multi-wire winding device of claim 3, wherein three flanges are formed on each of the flange ends on the one end side and the other end side of the shaft core; and the wire bending jigs are respectively provided to abut against the other end side flange portion. Electrode Two of the convex portions; two of the three lines are bent between the convex portion and the other end side flange portion. The multi-wire winding device of claim 3, wherein three flanges are formed on each of the flange portions on the one end side and the other end side of the shaft core; and the wire bending jig is provided only to abut against the other end side flange portion. a convex portion on a flat surface and located between a portion of the electrode farthest from the end of the winding portion of the winding core portion and an electrode adjacent thereto; and bending between the convex portion and the other end side flange portion 3 1 line in the line. The multi-winding device of claim 3, wherein the rotating mechanism is configured to clamp and rotate one end flange portion of the shaft core; and the wire bending jig is provided in a fixing portion different from the rotating mechanism. A winding-type coil component comprising: a core having a winding core portion and a flange portion formed at both end portions of the winding core portion, and having a flat surface on a mounting surface side of each flange portion, and a plurality of electrodes are formed at intervals of a flat surface; and a plurality of wires are wound around the core portion, and a start line portion and a final line portion are connected to the electrode; and the wound wire type coil component is characterized in that: a starting line portion of the line connecting the electrodes of the one end side flange portion closer to the winding position of the winding core portion has a connecting portion connected to the electrode, and is bent at a side edge portion of the core portion of the electrode a wiring portion extending from the initial winding position; a starting portion of the wire connected to an electrode of the one end flange portion farther from the winding position of the winding core portion, having a connecting portion connected to the electrode, and a wiring portion bent at a side edge portion of the core portion of the electrode and extending toward the above-described winding position; and a line connecting the electrode of the other end side flange portion closer to the final winding position of the winding core portion The wire portion has a connection to the above electrode The connecting portion and bent to the electrode side edge portion of the winding core portion and extending toward said roll end position of the line a terminal portion of the wire connected to the electrode of the other end side flange portion farther from the end of the winding core portion, having a connection portion connected to the electrode and a core portion side of the electrode a wiring portion bent in a lateral direction and extending from the bending position toward the final winding position; wherein the plurality of lines are formed by first to third lines, and one end side flange portion and the other end of the shaft core Each of the side flange portions is formed with three electrodes; the first line portion of the first line is connected to the first electrode of the one end side flange portion closest to the winding position of the winding core portion; and the first line portion of the second line a second electrode connected to one end flange portion farther from the first electrode than the first winding position of the winding core portion; and a starting line portion of the third wire is connected to a starting position of the winding core portion a third electrode of the one end side flange portion farther than the second electrode; and a final line portion of the first line is connected to the fourth end portion of the other end side flange portion farthest from the end of the winding core portion An electrode extending at a connection portion connected to the fourth electrode and extending toward the end roll The wiring portions are bent in the lateral direction; the final line portion of the second line is linearly extracted and connected to the other end side flange portion closer to the fourth electrode than the final winding position of the winding core portion The fifth electrode; the end line portion of the third line is linearly extracted and connected to the sixth electrode of the other end side flange portion closer to the fifth electrode than the final winding position of the winding core portion. The winding-type coil component according to claim 8, wherein the axial core is provided on a side portion of the flange portion on the core portion side or between the flange portion and the winding core portion, and includes a spacer portion having no electrode.