JP6936130B2 - Coil parts - Google Patents

Description

The present invention relates to a coil component including a coil and a case for accommodating the coil.

The coil component is configured by housing a coil in which an electric wire is wound around a core in a case. This coil component is used by electrically connecting the end of the coil, that is, the end of the electric wire, to other equipment or components.

Japanese Patent No. 3778639

Conventionally, coil parts have been placed in the immediate vicinity of other devices and parts. However, there are cases where the coil component and the device or component to be connected must be placed at a distant position. In this case, since the lead-out length of the coil end portion becomes long, the drawn-out electric wire becomes slack, and it becomes difficult to position the coil end portion. As a result, physical interference with peripheral devices may occur, and problems such as damage to the coating of the electric wire and dielectric breakdown may occur.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a coil component capable of positioning the end portion of a coil at a distant position.

The coil component of the present invention includes a coil around which an electric wire is wound, an installation member on which the coil is installed, and a positioning portion for positioning an end portion of the electric wire drawn out of the installation member. The positioning portion is fixed to the installation member and is provided around at least a part of the coil, an arm portion provided on the wall portion and extending outward, and the wall portion. A first notch provided on both sides of the arm in the vertical direction and a first portion provided on the left and right sides of the arm and extending in the lateral direction orthogonal to the vertical direction from the left and right sides of the arm. And a second protrusion provided below the first protrusion on the tip end side of the arm with respect to the first protrusion and extending laterally from the arm. It is characterized by having.

The first protrusion and the second protrusion may be provided side by side in the extension direction of the arm without overlapping in the vertical direction.

The first protrusion and the second protrusion may be provided so as to be separated from each other by the width of the electric wire in the vertical direction.

The second protrusion has a shorter lateral length than the first protrusion, and the tip of the second protrusion is closer to the arm than the tip of the first protrusion. It may be provided in.

The tip of the first protrusion may be bent and extend downward. The tip of the first protrusion may have a length equal to or greater than the width of the electric wire. The tip of the second protrusion may have a length of at least half the width of the electric wire and at least the width of the electric wire.

The tip of the first protrusion may have a length equal to or less than the width of the electric wire. The tip of the second protrusion may have a length equal to or less than the width of the electric wire.

The tip of the first protrusion or the tip of the second protrusion is inclined so that the outer side portion on the side opposite to the arm portion is inclined toward the arm portion toward the tip. You may.

The tip of the first protrusion and the tip of the second protrusion may have their inner side surfaces facing the arm located on the same plane.

The extension line of the arm extends off the center of the installation member, and the distance between the notch on one side of the arm, the first protrusion, and the other side of the arm. The distance between the notch and the first protrusion may be substantially the same.

The distance between the notch and the first protrusion may be at least twice the width of the wire. The height of the wall portion may be substantially the same as the height of the coil. The cutout portion may extend below the first protrusion portion.

According to the present invention, it is possible to obtain a coil component capable of positioning the end portion of the coil at a distant position.

It is a perspective view of the coil component which concerns on 1st Embodiment. It is an exploded perspective view of the coil component which concerns on 1st Embodiment. It is a top view of the coil component which concerns on 1st Embodiment. It is a front view of the coil component which concerns on 1st Embodiment. It is a right side view of the coil component which concerns on 1st Embodiment. It is a bottom view of the coil component which concerns on 1st Embodiment. It is a figure for demonstrating the operation of the coil component which concerns on 1st Embodiment. It is a perspective view of the coil component which concerns on 2nd Embodiment. It is a top view of the coil component which concerns on 2nd Embodiment. It is a front view of the coil component which concerns on 2nd Embodiment. It is a right side view of the coil component which concerns on 2nd Embodiment. It is a perspective view of the coil component which concerns on 3rd Embodiment. It is a top view of the coil component which concerns on 3rd Embodiment. It is a front view of the coil component which concerns on 3rd Embodiment. It is a right side view of the coil component which concerns on 3rd Embodiment.

Hereinafter, the coil parts according to the embodiment will be described with reference to the drawings.

[1. First Embodiment]
[1-1. composition]
FIG. 1 is a perspective view of a coil component according to the first embodiment. FIG. 2 is an exploded perspective view of the coil component according to the first embodiment. FIG. 3 is a plan view of the coil component according to the first embodiment. FIG. 4 is a front view of the coil component according to the first embodiment. FIG. 5 is a right side view of the coil component according to the first embodiment. FIG. 6 is a bottom view of the coil component according to the first embodiment.

In the present specification, the z-axis direction shown in the drawings is referred to as the "upper" side, and the opposite direction is referred to as the "lower" side. In explaining the configuration of each member, "bottom" is also referred to as "bottom". The "upper" and "lower" refer to the positional relationship of each configuration of the coil parts, and do not refer to the positional relationship and direction when the coil parts are mounted on the actual machine to be installed. The z-axis direction may be referred to as the height direction.

As shown in FIGS. 1 and 2, the coil component includes a core 1, a coil 5, a case 4, and a positioning portion 2.

The core 1 is formed in an annular shape by a magnetic material such as a dust core, a ferrite core, or a laminated steel plate. Here, the core 1 is a cylindrical toroidal core and is composed of a dust core.

The coil 5 is configured by winding one electric wire 51 having an insulating coating. Here, one electric wire 51 is wound around the core 1 to form a toroidal coil. Although the electric wire 51 uses a round wire having a round cross section here, the type and winding method are not particularly limited, and other forms may be used. An insulating material such as an insulating sheet or a resin member may be interposed between the core 1 and the coil 5. By winding the electric wire 51 around the core 1 and forming the coil 5, the coil component main body 10 having the core 1 and the coil 5 is formed.

The case 4 is an accommodating body for accommodating the coil 5, and is an installation member on which the coil 5 is installed. Here, the case 4 is made of resin and houses the coil component main body 10. As the resin, for example, an epoxy resin, an unsaturated polyester resin, a urethane resin, a BMC (Bulk Molding Compound), a PPS (Polyphenylene sulfide), a PBT (Polybutylene terephlate), or the like can be used.

The case 4 has a bottom surface 40 and a wall portion 41 that rises from the bottom surface and covers the side portion of the coil component main body 10. The wall portion 41 has a cylindrical shape here, and has a height of about half that of the coil component main body 10. As shown in FIG. 6, the bottom surface 40 of the case 4 has a ring body 40a and a support portion 40b provided on the ring body 40a and supporting the bottom surface of the coil component main body 10. The support portion 40b is a tongue-shaped plate-like body extending from one end of the wall portion 41 toward the central axis of the wall portion 41. Here, four support portions 40b are provided at circumferentially equidistant positions, and the bottom surface 40 of the case 4 has openings other than the annular body 40a and the support portion 40b. The bottom surface of the coil 5 is fixed to the support portion 40b with an adhesive or the like, so that the coil component main body 10 is fixed to the case 4 which is an installation member.

As shown in FIGS. 1 and 3 to 5, the positioning portion 2 positions the end portion of the coil 5 pulled out to the outside of the case 4, that is, the end portion of the electric wire 51. Specifically, the positioning portion 2 includes a wall portion 21, an arm portion 22, a first protrusion portion 23, and a second protrusion portion 24.

The wall portion 21 is fixed to the case 4, which is an installation member on which the coil 5 is installed, and is provided around at least a part of the coil 5. The height of the wall portion 21 is substantially the same as the height of the coil 5. The term "substantially the same" as used herein includes a case where the height of the wall portion 21 is the same as the height of the coil 5, a case where the height is slightly lower than the height of the coil 5, and a case where the height is slightly higher than the height of the coil 5. Further, the range of "slightly" can be, for example, twice or less the width of the electric wire 51.

Here, the wall portion 21 is a curved plate-like body having an arcuate cross section in the xy plane and extending in the z-axis direction, and is provided on the wall portion 41 so as to extend the upper end of the wall portion 41. In the present embodiment, the case 4 and the positioning portion 2 are seamlessly and continuously formed of the same resin by injection molding using a mold.

The wall portion 21 is provided with a notch portion 211. The cutout portion 211 is a slit provided in the vertical direction so as to cut out the upper end of the wall portion 21. A pair of cutout portions 211 are provided on the left and right at predetermined intervals. The width of the cutout portion 211 in the left-right direction, that is, the length in the direction orthogonal to the vertical direction when viewed from the front is the same as the width of the electric wire 51 or slightly larger than the width of the electric wire 51. For example, the width of the notch portion 211 in the left-right direction can be less than twice the width of the electric wire 51.

The arm portion 22 is provided on the wall portion 21 and extends outward. The arm portion 22 guides both ends of the electric wire 51 to an external connecting device or component. Specifically, the arm portion 22 is a block body in which a base end thereof is provided between the left and right notched portions 211, the tip end side projects to the outside of the case 4, and the arm portion 22 extends linearly. However, the upper part and the lower part of the arm portion 22 are lightened.

Here, as shown in FIG. 3, the arm portion 22 is provided so as to be biased to the right side of the center line C of the coil component main body 10 in a plan view, and intersects the wall portion 21 having an arc shape in a plan view without being orthogonal to each other. It is provided to do so. Therefore, the extension line of the arm portion 22 extends away from the center C0 of the case 4. The arm portion 22 has a flat surface on which the first protrusion 23 and the second protrusion 24 are provided on the left and right sides.

The first protrusions 23 are provided on the left and right side portions of the arm portion 22, and extend in the lateral direction orthogonal to the vertical direction from the left and right side portions of the arm portion 22. This lateral direction is also orthogonal to the extending direction of the arm portion 22. Further, the tip end side of the first protrusion 23 is bent and extends downward. That is, the first protruding portion 23 includes a protruding portion 231 that protrudes left and right when viewed from the left and right side portions of the arm portion 22, and a tip portion 232 that extends downward to the end portion of the protruding portion 231. Has. The protruding portion 231 protrudes by about twice the width of the electric wire 51. The tip portion 232 has a length equal to or larger than the width of the electric wire 51. The upper limit of the length can be about twice the width of the electric wire 51.

The second protrusion 24 is provided on the left and right side portions of the arm portion 22, and is located on the tip end side of the arm portion 22 with respect to the first protrusion portion 23 and below the first protrusion portion 23. The second protrusion 24 extends laterally from the side of the arm 22 to the left and right. Further, the tip side of the second protrusion 24 is bent and extends upward.

Specifically, the second protruding portion 24 has a protruding portion 241 projecting left and right when viewed from the left and right side portions of the arm portion 22, and a tip end extending upward at the end portion of the protruding portion 241. It has a part 242 and the like. The protrusion 241 has a shorter lateral length than the protrusion 231 and is the same as the width of the electric wire 51 or slightly smaller than the width of the electric wire 51. For example, it can be less than 1.5 times the width of the electric wire 51. Therefore, the second protrusion 24 has a shorter lateral length than the first protrusion 23, and the tip 242 is provided so as to retract from the tip 232 toward the arm 22. .. The tip portion 242 has a length of not more than half the width of the electric wire 51 and not more than the width of the electric wire 51.

As shown in FIG. 5, the first protrusion 23 and the second protrusion 24 are provided apart from each other in the extending direction of the arm 22 without overlapping in the vertical direction when viewed from the side. The distance between the first protrusion 23 and the second protrusion 24 is such that the electric wire 51 can pass through, and is equal to or slightly smaller than the width of the electric wire 51.

Further, as shown in FIGS. 4 and 5, the first protrusion 23 and the second protrusion 24 overlap each other in the direction in which the arm 22 extends. Here, the tip portion 232 and the tip portion 242 overlap. The side portions of the protruding portion 241 and the tip portion 242 are guide portions 243 extending straight upward.

Further, as shown in FIGS. 4 and 5, the vertical distance between the lower end of the protruding portion 231 and the upper end of the protruding portion 241 is about the same as the width of the electric wire 51. The term "similar" as used herein includes the same length as the width of the electric wire 51, a length slightly smaller than the width of the electric wire 51, and a length slightly larger than the width of the electric wire 51. The range of "slightly" here can be less than the width of the electric wire 51.

[1-2. Action]
The operation of the coil component of the present embodiment will be described with reference to FIG. 7 along with the routing and positioning work of the end portion of the electric wire 51. For the sake of simplicity, it is assumed that the coil component main body 10 is housed in the case 4 and both ends of the electric wire 51 are pulled out without being attached to the positioning portion 2 as shown in FIG. Further, it is assumed that the bottom portion of the coil component main body 10 is adhered to the support portion 40b, and the coil component main body 10 is fixed in the case 4.

First, as shown by the arrow Y1 in FIG. 7, the end portion of the electric wire 51 drawn upward is passed through the notch portion 211. Thereby, the lateral position of the end portion of the electric wire 51 can be regulated. Since the height of the wall portion 21 is substantially the same as the height of the coil 5, for example, the distance from the lead-out position of the electric wire 51 from the inner peripheral side of the core 1 to the notch portion 211 can be shortened. It is possible to suppress the slack of the electric wire 51.

Next, the tip of the electric wire 51 passed through the cutout portion 211 is passed under the first protrusion 23 as shown by an arrow Y2 in FIG. Since the first protrusion 23 protrudes from the arm 22 more than the second protrusion 24, the first protrusion 23 is less likely to be caught by the second protrusion 24 and is easier to handle. Further, since the guide portion 243, which is the end portion of the second protrusion 23, extends straight upward, and the first protrusion 23 protrudes from the second protrusion 24 from the arm portion 22, there is a notch. By simply pressing the electric wire 51 passing through the portion 211 against the guide portion 243 and sliding it upward, the electric wire 51 fits directly under the protruding portion 231. Alternatively, the electric wire 51 can be slid upward along the surface of the tip portion 232 on the arm portion 22 side, and the tip portion 232 can also serve as a guide for accommodating the electric wire 51 directly under the protruding portion 231. In this way, the protruding portion 231 regulates the upward position of the electric wire 51, and once the electric wire 51 is housed below the protruding portion 231, the tip portion 232 acts as a physical barrier in the lateral direction of the electric wire 51. It is possible to regulate the position of the electric wire 51 and prevent the electric wire 51 from coming off from the accommodation position of the electric wire 51 surrounded by the arm portion 22, the protruding portion 231 and the tip portion 232.

Further, as shown by the arrow Y3 in FIG. 7, the tip of the electric wire 51 passed under the first protrusion 23 is routed above the protrusion 241 and the electric wire 51 is placed on the protrusion 241. Thereby, the lower position of the electric wire 51 can be regulated. At this time, the electric wire 51 passed through the inside of the tip portion 232 to the lower surface of the protruding portion 231 is routed from the tip portion 232 side to the arm portion 22 side along the lower surface of the protruding portion 231 so that the protruding portion 241 The electric wire 51 can be placed on the wire 51. That is, the protrusion 231 can serve as a guide for placing the electric wire 51 on the protrusion 241. Further, the tip portion 242 can serve as a guide when the electric wire 51 is placed on the protrusion 241 and once the electric wire 51 is placed on the protrusion 241, it becomes a physical barrier of the electric wire 51. It is possible to regulate the position in the lateral direction and prevent the electric wire 51 from coming off from the accommodation position of the electric wire 51 surrounded by the arm portion 22, the protruding portion 241 and the tip portion 242. Further, as shown in FIGS. 1 and 5, the electric wire 51 in the extending direction of the arm portion 22 can be positioned by bending the electric wire 51 at the tip of the protruding portion 241.

[1-3. effect]
(1) The coil component of the present embodiment includes a coil 5 in which an electric wire 51 is wound, a case 4 which is an installation member on which the coil 5 is installed, and an end portion of an electric wire 51 pulled out to the outside of the case 4. The positioning portion 2 is fixed to the case 4 and is provided on the wall portion 21 provided around at least a part of the coil 5 and on the wall portion 21 and is provided on the outside. The arm portion 22 extending in a straight line, the left and right notches 211 provided on both sides of the arm portion 22 in the vertical direction on the wall portion 21, and the left and right side portions of the arm portion 22 provided on the arm portion 22. The left and right first protrusions 23 extending in the lateral direction orthogonal to the vertical direction from the left and right side portions, and the tip side of the arm 22 with respect to the first protrusion 23, provided below the first protrusion 23. The left and right second protrusions 24 extending laterally from the arm 22 were provided.

As a result, the end portion of the coil 5 can be positioned even at a position away from the coil component. That is, the position of the pull-out base end of the end portion of the electric wire 51 is laterally regulated by the notch portion 211, and the end portion of the electric wire 51 is upwardly regulated by the first protrusion 23 provided apart from the notch portion 211. By restricting the end of the electric wire 51 downward by the second protrusion 24 provided apart from the notch 211, the end of the coil 5 is regulated both vertically and horizontally. Therefore, the end portion of the coil 5 can be positioned even at a position away from the coil component.

(2) The first protrusion 23 and the second protrusion 24 are provided so as to be arranged side by side in the extension direction of the arm 22 without overlapping in the vertical direction and separated from each other. As a result, the end of the electric wire 51 that has passed through the notch 211 can be passed under the first protrusion 23, and the tip thereof can be made to crawl above the second protrusion 24, so that the electric wire 51 can be passed through. Workability can be improved while positioning the end of the cable. Further, since the first protrusion 23 and the second protrusion 24 do not form a so-called undercut, injection molding using a mold becomes possible, and the case 4, the wall 21, the arm 22, and the first protrusion can be molded. The portion 23 and the second protrusion 24 can be integrally molded seamlessly with a resin or the like, and productivity can be improved.

(3) The first protrusion 23 and the second protrusion 24 are provided so as to be separated from each other by the same width as the width of the electric wire 51 in the vertical direction. Thereby, the height of the end portion of the coil 5 can be accurately determined. Specifically, since the end portion of the electric wire 51 is sandwiched between the lower end of the protrusion 231 and the upper end of the protrusion 241, the play of the electric wire 51 can be eliminated.

(4) The tip portion 232 of the first protrusion 23 is bent so as to extend downward. As a result, when the end portion of the electric wire 51 is routed, it can be passed under the first protrusion 23 along the tip portion 232, so that workability can be improved. Further, once the end of the electric wire 51 is passed under the first protrusion 23, the tip 232 extends downward and thus becomes a physical barrier, and the end of the electric wire 51 becomes the first protrusion. It is possible to prevent the 23 from coming off to the outside.

(5) The tip of the first protrusion has a length equal to or longer than the width of the electric wire. As a result, the workability of handling the end portion of the electric wire 51 can be further improved, and the end portion of the electric wire 51 can be more effectively prevented from coming off from the first protrusion 23 to the outside.

(6) The tip portion 242 of the second protrusion 24 is bent so as to extend upward. As a result, not only the downward position regulation but also the lateral regulation becomes possible, and the positioning accuracy of the tip of the end portion of the electric wire 51 can be improved.

(7) The tip portion 242 of the second protrusion 24 has a length of not more than half the width of the electric wire 51 and not more than the width of the electric wire 51. As a result, it is possible to improve the positioning accuracy of the tip of the end of the electric wire 51 and the workability of handling the end of the electric wire 51 at the same time.

(8) The second protrusion 24 has a shorter lateral length than the first protrusion 23, and the tip portion 242 of the second protrusion 24 is formed from the tip portion 232 of the first protrusion 23. It is provided on the arm 22 side. As a result, when the end of the electric wire 51 is passed under the first protrusion 23, the second protrusion 24 is not caught and does not get in the way. Further, after passing the end portion of the electric wire 51 through the lower side of the first protrusion 23, it becomes easier to handle the upper side of the second protrusion 24, and the handling work can be smoothly performed.

(9) The height of the wall portion 21 is substantially the same as the height of the coil 5. As a result, slack at the end of the electric wire 51 can be suppressed. For example, if the height of the wall portion 21 is about half the height of the coil 5, the height of the notch portion 211 is further lowered, and the length of the end portion of the electric wire 51 pulled out from the coil 5 becomes long, so that the electric wire The 51 may slacken and cause physical interference with peripheral devices. On the other hand, since the height of the wall portion 21 is substantially the same as the height of the coil 5, the sagging of the end portion of the electric wire 51 can be suppressed.

[2. Second Embodiment]
[2-1. composition]
The coil parts according to the second embodiment will be described with reference to FIGS. 8 to 11. The second embodiment has the same basic configuration as the first embodiment. Therefore, only the points different from those of the first embodiment will be described, and the same parts as those of the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

FIG. 8 is a perspective view of the coil component according to the second embodiment. FIG. 9 is a plan view of the coil component according to the second embodiment. FIG. 10 is a front view of the coil component according to the second embodiment. FIG. 11 is a right side view of the coil component according to the second embodiment.

As shown in FIGS. 8, 10 and 11, the cutout portion 211 of the present embodiment extends below the first protrusion 23. Here, the notch portion 211 extends below the lower end of the protruding portion 231 and extends to the range of the lower end of the tip portion 232.

As shown in FIG. 9, the distance between the notch 211 on one side of the arm 22 and the first protrusion 23 and the distance between the notch 211 on the other side of the arm 22 and the first protrusion 23. The distances are almost the same. In other words, the first protrusion 23 of the present embodiment is wider than the first protrusion 23 of the first embodiment in the extending direction of the arm portion 22. The term "substantially the same" as used herein includes the same cases and slightly different cases. If it is slightly different, it may be less than the width of the electric wire 51, for example.

As shown in FIGS. 9 and 11, the distance between the notch portion 211 and the first protrusion 23 is not less than twice the width of the electric wire 51.

As shown in FIG. 11, the distance between the first protrusion 23 and the second protrusion 24 is the same as or slightly larger than the width of the electric wire 51. The slightly larger value can be, for example, less than twice the width of the electric wire 51.

[2-2. Action / effect]
(1) In the coil component of the present embodiment, the extension line of the arm portion 22 extends away from the center C0 of the case 4, and the notch portion 211 on one side of the arm portion 22 and the first protrusion 23 The distance between them and the distance between the notch 211 on the other side of the arm 22 and the first protrusion 23 are made substantially the same. As a result, the workability of handling from the notch portion 211 to the first protrusion portion 23 can be made comparable on the left and right sides of the arm portion 22.

Further, if the space between the notch portion 211 and the first protrusion 23 is narrow, it is difficult to handle the work. Therefore, from the viewpoint of improving workability, the distance between the notch portion 211 and the first protrusion 23 should be as large as possible. On the other hand, the electric wire 51 tends to be slack, and the electric wire 51 may easily come off from the notch 211 or the first protrusion 23. On the other hand, by making the distance between the notch portion 211 and the first protrusion 23 not more than twice the width of the electric wire 51, workability is improved and the end portion of the electric wire 51 is prevented from coming off. be able to.

(2) The cutout portion 211 extends below the first protrusion 23. As a result, the electric wire 51 can be routed without applying a load to the end of the electric wire 51. That is, if the depth of the notch portion 211 is only above the first protrusion 23, when the electric wire 51 passed through the notch portion 211 is passed under the first protrusion 23, A load is applied due to the electric wire 51 being caught on the wall portion 21 at the bottom of the notch portion 211 and the electric wire 51 being bent, which may cause damage to the coating film of the electric wire 51 or disconnection. On the other hand, in the present embodiment, the cutout portion 211 extends below the first protrusion 23, so that the wall portion 21 is prevented from being caught and the coating film of the electric wire 51 is damaged or broken. While preventing it, it is possible to facilitate the handling work.

[3. Third Embodiment]
The coil parts according to the third embodiment will be described with reference to FIGS. 12 to 15. The third embodiment has the same basic configuration as the second embodiment. Therefore, only the points different from those of the second embodiment will be described, and the same parts as those of the second embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

FIG. 12 is a perspective view of the coil component according to the third embodiment. FIG. 13 is a plan view of the coil component according to the third embodiment. FIG. 14 is a front view of the coil component according to the third embodiment. FIG. 15 is a right side view of the coil component according to the third embodiment.

As shown in FIG. 15, the tip portion 232 is provided on the wall portion 21 side of the lower surface of the protruding portion 231. As a result, the distance between the tip portion 232 and the tip portion 242 can be increased, and the electric wire 51 can be suppressed in a wide range.

As shown in FIGS. 12 and 15, the lengths of the tip portion 232 and the tip portion 242 are set to be equal to or less than the width of the electric wire 51, and the lengths of the tip portions 232 and 242 are shortened as compared with the first embodiment. As a result, when guiding the electric wire 51 to the tip portions 232 and 242, it is not necessary to exaggerately bend the electric wire 51 below the tip portion 232 and above the tip portion 242 to wrap around, which improves workability. That is, if the electric wire 51 is bent significantly when the electric wire 51 is routed, a bending habit is formed and it becomes difficult to route the electric wire 51. The bending of 51 can be minimized, and the remaining bending habit can be suppressed. In particular, in the present embodiment, as shown in FIGS. 14 and 15, the tip of the tip portion 232 and the tip of the tip portion 242 are located on the same plane (here, on the xy plane), and the electric wire 51. Bending can be reduced.

Further, as shown in FIG. 14, the tip portion 232 and the tip portion 242 are tilted so that the outer side portion on the side opposite to the arm portion 22 is tilted toward the arm portion 22 toward the tip. For example, in the tip portion 242, the upper side of the guide portion 243 is inclined so as to be inclined toward the arm portion 22 side. As a result, along the side portions of the respective portions 232 and 242, the accommodation position of the electric wire 51 surrounded by the arm portion 22, the protruding portion 231 and the tip portion 232, and the arm portion 22, the protruding portion 241 and the tip portion 242 surround the electric wire 51. It is possible to easily accommodate the electric wire 51 in the accommodating position of the electric wire 51. As a result, the bending of the electric wire 51 can be minimized, so that the bending habit of the electric wire 51 can be suppressed.

Further, the tip portion 232 and the tip portion 242 face each other vertically when viewed from the front, and the inner side surface facing the arm portion 22 is located on the same plane (here, on the xz plane). Therefore, even if the lengths of the tip portions 232 and 242 are shortened as in the present embodiment, once the electric wires 51 are accommodated in the accommodation positions of the electric wires 51 inside the tip portions 232 and 242, they are positioned on the same plane. Either the tip portion 232 or the tip portion 242 serves as a physical barrier, and it is possible to prevent the electric wire 51 from coming off from the accommodation position.

As shown in FIG. 13, in the present embodiment, the side surface of the first protrusion 23 on the right side on the wall portion 21 side is perpendicular to the arm portion 22, whereas the wall portion of the first protrusion 23 on the left side is perpendicular to the arm portion 22. The side surface on the 21 side is inclined with respect to the vertical direction of the arm portion 22. That is, the side surface of the left first protrusion 23 (here, the protrusion 241) on the wall 21 side is linearly inclined along the wall 21. As a result, the distance between the protrusion 241 and the wall 21 can be maintained, and the electric wire 51 passed through the notch 211 on the left side can be easily routed below the first protrusion 23.

[4. Other embodiments]
The present invention is not limited to the first to third embodiments described above, but also includes other embodiments shown below. The present invention also includes a combination of all or any of the first to third embodiments described above and the other embodiments described below. Furthermore, various omissions, replacements, and changes can be made to these embodiments without departing from the scope of the invention, and modifications thereof are also included in the present invention.

(1) In the first to third embodiments, the case 4 and the positioning portion 2 are integrally formed by injection molding of a resin, but the present invention is not limited to this. The wall portion 21 may be provided as a separate member and may be fixed to the wall portion 41 of the case 4 with an adhesive or the like. Further, a groove may be provided at the lower end of the wall portion 21 along the circumference, and the upper edge of the wall portion 41 of the case 4 may be fitted into the groove to fix the wall portion 21 to the case 4. Further, the wall portion 21 is not covered by the wall portion 41 of the case 4, and it is sufficient to cover the wall portion 21 from the upper edge of the wall portion 41 to the upper edge of the coil component main body 10. It may be set to a size that covers the entire height and fixed to the outside of the wall portion 41.

(2) In the first to third embodiments, the arm portion 22 is provided so as to be offset from the center of the case 4, but it may be provided on an axis passing through the center of the case 4 in a plan view. good.

(3) In the first to third embodiments, the arm portion 22 is formed in a block shape and its side surfaces are parallel to each other, but the arm portion 22 may extend to the outside of the case 4. .. For example, it may be triangular in a plan view, or the side portion of the arm 22 may be curved or bent in a plan view.

(4) In the first to third embodiments, the end portion of the coil 5 is pulled out beyond the tip end of the positioning portion 2, but the present invention is not limited to this. That is, the case where the electric wire 51 constituting the coil 5 is short, the lead wire is connected and extended from the end of the electric wire 51, and the lead wire is positioned by the positioning unit 2 is also included in the scope of the present invention. In other words, the lead wire can be regarded as the end of the coil 5.

(5) In the first to third embodiments, the number of coils 5 is one, but two or more coils 5 may be attached to the core 1. In that case, two or more positioning portions 2 may be provided according to the number of coils 5, or two or more arm portions 22 are provided on one wall portion 21, and the respective portions 211, 23, 24 are provided for each arm portion 22. May be provided.

(6) In the first to third embodiments, the case 4 is an installation member on which the coil 5 is installed, but the installation member is not limited to the case 4, and if the wall portion 21 is fixed, it is a flat plate. There may be. For example, the installation member may be formed only by the bottom surface 40 without the wall portion 41 of the case 4, or may be simply a round or square flat plate.

10 Coil component body 1 Core 2 Positioning part 21 Wall part 211 Notch part 22 Arm part 23 First protrusion 231 Protruding part 232 Tip part 24 Second protrusion 241 Protruding part 242 Tip part 243 Guide part 4 Case 40 Bottom surface 40a Annulus 40b Support 41 Wall 5 Coil 51 Electric wire

Claims (16)

A coil made by winding an electric wire and
The installation member on which the coil is installed and
A positioning portion for positioning the end of the electric wire pulled out to the outside of the installation member, and a positioning portion for positioning the end portion of the electric wire.
With
The positioning unit is
A wall portion fixed to the installation member and provided around at least a part of the coil.
An arm provided on the wall and extending outward,
Notches provided in the vertical direction on both sides of the arm portion in the wall portion, and
A first protrusion provided on the left and right side portions of the arm portion and extending in the lateral direction orthogonal to the vertical direction from the left and right side portions of the arm portion.
A second protrusion provided below the first protrusion on the tip side of the arm with respect to the first protrusion and extending laterally from the arm.
To have
Coil parts featuring. The first protrusion and the second protrusion are provided side by side in the extension direction of the arm without overlapping in the vertical direction and are provided apart from each other.
The coil component according to claim 1. The first protrusion and the second protrusion are provided so as to be separated from each other by the width of the electric wire in the vertical direction.
2. The coil component according to claim 2. The second protrusion has a shorter lateral length than the first protrusion.
The tip of the second protrusion is provided on the arm side of the tip of the first protrusion.
The coil component according to any one of claims 1 to 3. The tip of the first protrusion is bent and extends downward.
The coil component according to any one of claims 1 to 4. The tip of the second protrusion is bent and extends upward.
The coil component according to any one of claims 1 to 5. The tip of the first protrusion has a length equal to or greater than the width of the electric wire.
5. The coil component according to claim 5. The tip of the second protrusion has a length of at least half the width of the electric wire and at least the width of the electric wire.
6. The coil component according to claim 6. The tip of the first protrusion has a length equal to or less than the width of the electric wire.
5. The coil component according to claim 5. The tip of the second protrusion has a length equal to or less than the width of the electric wire.
6. The coil component according to claim 6. The tip of the first protrusion or the tip of the second protrusion is inclined so that the outer side portion on the side opposite to the arm portion is inclined toward the arm portion toward the tip. Being,
The coil component according to any one of claims 5 to 10. The tip of the first protrusion and the tip of the second protrusion have inner side surfaces facing the arm located on the same plane.
The coil component according to any one of claims 5 to 11. The arm portion has an extension line extending off the center of the installation member.
The distance between the notch on one side of the arm and the first protrusion and the distance between the notch on the other side of the arm and the first protrusion are substantially the same. ,
The coil component according to any one of claims 1 to 12. The distance between the notch and the first protrusion shall be at least twice the width of the wire.
13. The coil component according to claim 13. The height of the wall portion is substantially the same as the height of the coil.
The coil component according to any one of claims 1 to 14. The notch extends below the first protrusion.
The coil component according to any one of claims 1 to 15.

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