CN111354534B - Coil component - Google Patents

Abstract

Provided is a coil component having a structure that can sufficiently ensure pressure resistance between a terminal and a core. The coil component (100) comprises: a core (1 st core 10 and 2 nd core 20) having a pair of shaft portions arranged in parallel with each other, a 1 st opposing portion (1 st connecting portion 15) arranged across one end portion of the pair of shaft portions, and a 2 nd opposing portion (2 nd connecting portion 25) arranged across the other end portion of the pair of shaft portions; a housing member (30) which is made of an insulating material and supports the core; a coil (60) wound around a pair of shaft portions; and a metal terminal member (70) electrically connected to the coil (60), wherein the housing member (30) has: a housing section (36) for housing the core section; and a pair of outer wall parts (40, 50) which are arranged opposite to each other with the core part sandwiched therebetween, wherein metal terminal members (70) are respectively provided on the pair of outer wall parts (40, 50).

Description

Coil component

Technical Field

The present invention relates to a coil component.

Background

As a conventional coil component, there is a common mode choke coil described in patent document 1, for example.

The coil component of patent document 1 is configured by including: two bobbins arranged coaxially; a coil wound around each bobbin; a pair of cores, one side of which penetrates through each bobbin; a base portion supporting the cores; and a pin-shaped terminal protruding from the back surface of the base.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 8-213242

Disclosure of Invention

Problems to be solved by the invention

According to the studies of the present inventors, there is room for improvement in the structure of the coil component of patent document 1 regarding the pressure resistance between the terminal and the core.

The present invention has been made in view of the above-described problems, and provides a coil component having a structure capable of sufficiently securing pressure resistance between a terminal and a core.

Solution for solving the problem

According to the present invention, there is provided a coil component, wherein the coil component includes: a core portion having a pair of shaft portions arranged in parallel with each other, a 1 st opposing portion arranged across one end portions of the pair of shaft portions, and a 2 nd opposing portion arranged across the other end portions of the pair of shaft portions;

a case member which is made of an insulating material and supports the core;

a coil wound around the pair of shaft portions; and

a metal terminal member electrically connected to the coil,

the 1 st opposing portion and the 2 nd opposing portion are disposed opposite to each other with the pair of shaft portions sandwiched therebetween,

the housing member has:

a housing section for housing the core section; and

A pair of outer wall portions which are disposed opposite to each other with the core portion interposed therebetween and which stand up in the up-down direction,

the metal terminal members are provided on the pair of outer wall portions, respectively.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, the pressure resistance between the terminal (metal terminal member) and the core can be sufficiently ensured.

Drawings

Fig. 1 is a perspective view of a coil component according to an embodiment.

Fig. 2 is a plan view of the coil component according to the embodiment.

Fig. 3 is a cross-sectional view taken along line A-A of fig. 2.

Fig. 4 is a sectional view taken along line B-B of fig. 2.

Fig. 5 is a sectional view taken along line C-C of fig. 2.

Fig. 6 is a bottom view of the coil component according to the embodiment (illustration of the 2 nd core is omitted).

Fig. 7 is an exploded perspective view of the coil component of the embodiment.

Fig. 8 is an exploded perspective view of the case member and the metal terminal member of the coil component according to the embodiment, as seen from the lower surface side.

Fig. 9 is an exploded perspective view of the coil component according to the embodiment as seen from the bottom surface side.

Fig. 10 (a) is a top view of a coil component according to a modification, and fig. 10 (b) is a bottom view of a coil component according to a modification.

Fig. 11 (a) is an exploded perspective view of the coil component of the modification as viewed from the upper surface side, and fig. 11 (b) is an exploded perspective view of the coil component of the modification as viewed from the lower surface side.

Description of the reference numerals

10. A 1 st core; 11. 1 st shaft portion (a 1 st shaft portion); 12. 1 st shaft portion (another 1 st shaft portion); 13. 14, 23, 24, a tip face; 15. a 1 st connection part; 16. 26, one side; 17. 27, the other side; 18. an outer peripheral surface; 19. a concave portion; 20. a 2 nd core; 21. a 2 nd shaft portion (a 2 nd shaft portion); 22. a 2 nd shaft portion (another 2 nd shaft portion); 25. a 2 nd connecting part; 28. an outer peripheral surface; 29. a concave portion; 30. a housing member; 31. a core holding portion; 32. an opening; 33. a protruding portion; 34. a partition wall portion; 35. a concave curved surface; 36. a storage section; 37. an upper surface; 38. a front face; 39. a back surface; 40. an outer wall portion (an outer wall portion); 41. 1 st opposite face; 42. the 1 st outer side; 43. 53, lower surface; 44. 54, lower surface side concave portions; 45. 55, a terminal arrangement part; 46. 56, separating the step portions; 47. 57, recesses; 48. 58, inclined plane; 49. 59, an insertion hole; 50. an outer wall portion (another outer wall portion); 51. a 2 nd opposite face; 52. the 2 nd outer side; 60. a coil; 61. a 1 st coil; 62. a 2 nd coil; 63. a winding part; 64. an end portion; 65. the other end part; 70. 71, 72, 73, 74, metal terminal members; 75. an insertion section; 76. a coil end holding portion; 77. a terminal portion; 78. an opposing portion; 81. a gap; 91. 92, protrusions; 100. a coil component.

Detailed Description

Hereinafter, an embodiment of the present invention will be described with reference to fig. 1 to 9. In all the drawings, the same reference numerals are given to the same components, and the description thereof is omitted as appropriate.

As shown in fig. 7, the coil component 100 of the present embodiment includes: a core portion having a pair of shaft portions arranged in parallel with each other, a 1 st opposing portion (1 st connecting portion 15) arranged across one end portion of the pair of shaft portions, and a 2 nd opposing portion (2 nd connecting portion 25) arranged across the other end portion of the pair of shaft portions; a case member 30 which is made of an insulating material and supports the core; a coil 60 wound around a pair of shaft portions; and a metal terminal member 70 electrically connected to the coil 60.

As shown in fig. 3, the 1 st opposing portion and the 2 nd opposing portion are disposed so as to face each other with a pair of shaft portions sandwiched therebetween.

The housing member 30 has: a housing 36 for housing the core; and a pair of outer wall portions 40, 50 which are arranged opposite to each other with the core portion sandwiched therebetween and stand up in the up-down direction, respectively.

A metal terminal member 70 is provided on each of the pair of outer wall portions 40 and 50.

According to the present embodiment, the coil component 100 has the following structure: the metal terminal member 70 electrically connected to the coil 60 is provided on each of the outer wall portions 40, 50 of the case member 30 made of an insulating material. Therefore, the pressure resistance between the terminals (metal terminal members 70) of the coil component 100 and the core can be sufficiently ensured. That is, the insulation distance between the terminal and the core can be ensured.

In the case of the present embodiment, the core portion includes the 1 st core 10 and the 2 nd core 20. That is, the core includes: a 1 st core 10 having a 1 st facing portion (1 st connecting portion 15) and a pair of 1 st shaft portions 11, 12 arranged in parallel with each other; and a 2 nd core 20 having a 2 nd facing portion (2 nd coupling portion 25) and a pair of 2 nd shaft portions 21, 22 arranged in parallel with each other.

The 1 st opposing portion (1 st connecting portion 15) connects the pair of 1 st shaft portions 11, 12 to each other.

The 2 nd facing portion (2 nd coupling portion 25) couples the pair of 2 nd shaft portions 21, 22 to each other.

As shown in fig. 3 and 7, one 1 st shaft portion 11 of the pair of 1 st shaft portions 11, 12 and one 2 nd shaft portion 21 of the pair of 2 nd shaft portions 21, 22 are coaxially arranged with each other to constitute a shaft portion. Similarly, the other 1 st shaft portion 12 of the pair of 1 st shaft portions 11, 12 and the other 2 nd shaft portion 22 of the pair of 2 nd shaft portions 21, 22 are coaxially arranged with each other to constitute the other shaft portion.

That is, in the case of the present embodiment, the core is constituted by combining two U-shaped cores (the 1 st core 10 and the 2 nd core 20) with each other.

That is, the coil component 100 of the present embodiment includes: a 1 st core 10 having a pair of 1 st shaft portions 11, 12 arranged in parallel with each other and a 1 st coupling portion 15 coupling the pair of 1 st shaft portions 11, 12 to each other; a 2 nd core 20 having a pair of 2 nd shaft portions 21, 22 arranged in parallel with each other and a 2 nd coupling portion 25 coupling the pair of 2 nd shaft portions 21, 22 to each other; a case member 30 which is made of an insulating material and supports the 1 st core 10 and the 2 nd core 20; a coil 60 wound around the 1 st shaft portions 11, 12 and the 2 nd shaft portions 21, 22; and a metal terminal member 70 electrically connected to the coil 60.

As shown in fig. 3, the 1 st coupling portion 15 and the 2 nd coupling portion 25 are disposed so as to face each other with the pair of 1 st shaft portions 11, 12 and the pair of 2 nd shaft portions 21, 22 interposed therebetween. The 1 st shaft portion 11 of the pair of 1 st shaft portions 11, 12 and the 2 nd shaft portion 21 of the pair of 2 nd shaft portions 21, 22 are arranged coaxially with each other. The other 1 st shaft portion 12 of the pair of 1 st shaft portions 11, 12 and the other 2 nd shaft portion 22 of the pair of 2 nd shaft portions 21, 22 are arranged coaxially with each other.

The housing member 30 has: a housing 36 for housing the 1 st core 10 and the 2 nd core 20; and a pair of outer wall portions 40, 50 which are arranged so as to face each other with the 1 st core 10 and the 2 nd core 20 interposed therebetween, and which stand up in the up-down direction.

A metal terminal member 70 is provided on each of the pair of outer wall portions 40 and 50.

For the 1 st core 10, the entirety of the 1 st core 10 is integrally formed of a magnetic material.

As shown in fig. 7 and 9, the 1 st coupling portion 15 of the 1 st core 10 is formed in a disk shape. One surface 16 (fig. 7) and the other surface 17 (fig. 9) of the 1 st coupling portion 15 are formed flat and parallel to each other. The top shape of the 1 st connecting portion 15 is not particularly limited, and is, for example, an oblong shape, an elliptical shape, or a rectangular shape with rounded corners (see fig. 2).

The 1 st shaft portions 11, 12 are formed in, for example, a long cylindrical shape, an elliptic cylindrical shape, or a rounded prism shape, respectively. The 1 st shaft portions 11, 12 protrude from the other surface 17 of the 1 st coupling portion 15 at positions apart from each other. The 1 st shaft portions 11, 12 are disposed parallel to each other in the axial direction and are orthogonal to the plate surface of the 1 st coupling portion 15. The protruding lengths of the 1 st shaft portions 11, 12 (the lengths of the 1 st shaft portions 11, 12 in the axial direction) protruding from the other surface 17 are equal to each other. As shown in fig. 3, the distance between the first surface 16 and the second surface 17 of the 1 st coupling portion 15 is smaller than the width (the minor diameter of the ellipse) of the 1 st shaft portions 11, 12 in the Y direction. The extending direction of the long diameter of the 1 st coupling portion 15 and the extending directions of the long diameters of the 1 st shaft portions 11, 12 are orthogonal to each other.

As shown in fig. 9 and 3, the tip end face 13 of one 1 st shaft portion 11 and the tip end face 14 of the other 1 st shaft portion 12 are, for example, formed flat, respectively, and are disposed on the same plane as each other. The top end surfaces 13, 14 are orthogonal to the Z direction.

In the following description, the axial direction of the 1 st shaft portion 11, 12 may be referred to as the up-down direction or the Z direction.

One surface 16 of the 1 st connecting portion 15 faces upward, and the other surface 17 faces downward. The 1 st shaft portions 11, 12 protrude downward from the 1 st coupling portion 15.

The arrangement direction of the 1 st shaft portion 11 and the 1 st shaft portion 12 is sometimes referred to as the Y direction. The Z direction and the Y direction are orthogonal to each other.

The direction perpendicular to the Z direction and the Y direction is referred to as the X direction.

The 2 nd core 20 is formed of the same material as the 1 st core 10 and has the same shape as the 1 st core 10. That is, the 2 nd core 20 has a 2 nd coupling portion 25 similar to the 1 st coupling portion 15, 2 nd shaft portions 21 and 22 similar to the 1 st shaft portions 11 and 12, and tip end surfaces 23 and 24 similar to the tip end surfaces 13 and 14.

The 2 nd core 20 is disposed in a vertically inverted posture with respect to the 1 st core 10. That is, one surface 26 (fig. 9) of the 2 nd coupling portion 25 faces downward, and the other surface 27 (fig. 7) of the 2 nd coupling portion 25 faces upward. The 2 nd shaft portions 21, 22 protrude upward from the other surface 27.

As shown in fig. 3, the tip end face 13 of a 1 st shaft portion 11 and the tip end face 23 of a 2 nd shaft portion 21 are in surface contact with each other or are close to each other in parallel.

Also, the distal end surface 14 of the other 1 st shaft portion 12 and the distal end surface 24 of the other 2 nd shaft portion 22 are in surface contact with each other or are in parallel proximity to each other.

The distal end face 13 and the distal end face 23 are bonded and fixed to each other by an adhesive, for example. Similarly, the distal end face 14 and the distal end face 24 are bonded and fixed to each other by, for example, an adhesive.

The shape of the coil component 100 in plan view is not particularly limited, and may be rectangular (for example, square with rounded corners) as shown in fig. 2.

As shown in fig. 1, the coil component 100 is formed in a substantially rectangular parallelepiped shape, for example.

The case member 30 is made of an insulating material such as resin. The housing member 30 is integrally formed, for example, as a whole.

The housing member 30 has: a flat upper surface 37; a front face 38 (fig. 2, 7, 8) which is an outer surface of the housing member 30 in the Y direction; and a back surface 39 (fig. 2, 9) which is the other outer surface in the Y direction of the case member 30.

The upper surface 37 is an outer surface of the housing member 30 in the Z direction. The outline of the upper surface 37 is rectangular (e.g., square with rounded corners) (fig. 2).

The front surface 38 and the rear surface 39 are formed in a U-shape opened downward, i.e., an inverted U-shape. The front face 38 and the back face 39 are arranged parallel to each other. Front face 38 and back face 39 are orthogonal to upper face 37, respectively.

The case member 30 has a 1 st outer side surface 42 and a 2 nd outer side surface 52 as a pair of outer surfaces in the X direction.

The 1 st outer side surface 42 is an outer surface of one outer wall portion 40 in the X direction, and the 2 nd outer side surface 52 is an outer surface of the other outer wall portion 50 in the X direction.

The 1 st outer side 42 and the 2 nd outer side 52 are arranged parallel to each other.

Lateral sides 42 and 52 are orthogonal to front 38 and back 39, and are also orthogonal to upper surface 37.

Also, the case member 30 has a lower surface that is the other outer surface in the Z direction of the case member 30. The lower surface of the housing member 30 is an aggregate of the lower surface 43 (fig. 3, 8) of one outer wall portion 40 and the lower surface 53 (fig. 8) of the other outer wall portion 50.

The lower surfaces (lower surface 43 and lower surface 53) of the housing member 30 are arranged parallel to the upper surface 37.

As shown in fig. 7 and 8, the case member 30 includes a core holding portion 31 for holding the 1 st coupling portion 15 (1 st opposing portion) of the 1 st core 10. The pair of outer wall portions 40, 50 protrude downward from the core holding portion 31.

The outer wall portions 40, 50 are each formed in, for example, a substantially rectangular parallelepiped shape having a long dimension in the Y direction.

The lower surfaces 43 and 53 of the outer wall portions 40 and 50 are preferably located below the distal end surfaces 13 and 14 of the 1 st shaft portions 11 and 12 of the 1 st core 10, more preferably located below the lower end of a winding portion 63 (described later) of the coil 60, still more preferably located below the lower end of the coil 60, and particularly preferably located below the one surface 26 of the 2 nd connecting portion 25 of the 2 nd core 20.

As shown in fig. 7, the core holding portion 31 is formed in a disk shape perpendicular to the vertical direction, and an opening 32 penetrating the core holding portion 31 vertically is formed in the center portion of the core holding portion 31.

The opening 32 is formed in a shape corresponding to the 1 st connecting portion 15, for example, and is formed to be larger than the 1 st connecting portion 15 by one turn (fig. 2).

Projections 33 are formed on a plurality of portions of the inner peripheral surface of the opening 32 so as to project inward of the opening 32. For example, the protrusions 33 are disposed at the 4 corners of the opening 32.

The inner peripheral surface of the opening 32 is parallel to the up-down direction (Z direction shown in fig. 7), for example.

On the other hand, the protruding amount of the protruding portion 33 from the inner peripheral surface of the opening 32 increases as going downward.

More specifically, the protrusion 33 has a triangular-mesa shape, for example, and the horizontal cross-sectional area increases as it goes downward.

The protrusion 33 is formed, for example, in a range from the upper end to the lower end of the opening 32.

The 1 st connecting portion 15 of the 1 st core 10 is pressed into the opening 32 from the upper side of the case member 30, whereby the 1 st connecting portion 15 (1 st opposing portion) is press-fitted and fixed to the core holding portion 31.

That is, the 1 st coupling portion 15 is fixed to the core holding portion 31 in a state where the outer peripheral surface 18 of the 1 st coupling portion 15 is pressed against each 1 st oblique side of each protruding portion 33 (see fig. 5).

Thus, the 1 st core 10 is supported by the case member 30.

Further, as described above, the 2 nd core 20 is adhesively fixed to the 1 st core 10. The 2 nd core 20 is indirectly supported by the case member 30 via the 1 st core 10.

In the example of fig. 5, the thickness dimension of the 1 st connecting portion 15 is larger than the vertical dimension of the opening 32, one surface 16 of the 1 st connecting portion 15 is located above the upper surface 37, and the other surface 17 of the 1 st connecting portion 15 is located below the lower surface of the core holding portion 31. That is, the 1 st coupling portion 15 of the 1 st core 10 protrudes slightly upward with respect to the upper surface 37 of the case member 30.

However, the relationship between the up-down dimension of the opening 32 (the thickness dimension of the core holding portion 31) and the thickness dimension of the 1 st coupling portion 15 is not particularly limited. For example, the one surface 16 and the upper surface 37 may be disposed flush with each other, or the one surface 16 may be disposed below the upper surface 37.

The other surface 17 may be disposed flush with the lower surface of the core holder 31, or may be disposed above the lower surface of the core holder 31.

Here, the space between the one outer wall portion 40 and the other outer wall portion 50 and the space within the opening 32 are the housing portions 36 for housing the 1 st core 10 and the 2 nd core 20 inside the case member 30.

As shown in fig. 7, the coil component 100 includes a 1 st coil 61 and a 2 nd coil 62 as the coil 60.

The 1 st coil 61 is formed using a wire made of a metal material.

The 1 st coil 61 has: a winding portion 63 formed by spirally winding a wire; and one end portion 64 and the other end portion 65, which protrude from the winding portion 63, respectively.

An end 64 protrudes in a tangential direction from an axial end of the winding portion 63. The portion of the 1 st coil 61 on the other end 65 side protrudes in the tangential direction from the other end in the axial direction of the winding portion 63, and is folded back toward one end side in the axial direction, and the other end 65 protrudes in the tangential direction from the one end in the axial direction. The protruding direction of the one end portion 64 from the winding portion 63 and the protruding direction of the other end portion 65 from the winding portion 63 are substantially opposite to each other. One end 64 and the other end 65 are disposed on a substantially same line with each other. One end 64 and the other end 65 extend along the X direction, respectively.

The 2 nd coil 62 is also formed in the same shape as the 1 st coil 61, and has a winding portion 63, one end portion 64, and the other end portion 65.

In the case of the present embodiment, as shown in fig. 7 and 9, the 1 st coil 61 and the 2 nd coil 62 are formed in a symmetrical shape (mirror-symmetrical shape) to each other in the Y direction.

Preferably, the wire constituting the 1 st coil 61 and the 2 nd coil 62 is coated with a resin coating on the outer peripheral surface.

At least a part of each of the one end portion 64 and the other end portion 65, the metal material of the wire is exposed from the resin coating film, and the one end portion 64 and the other end portion 65 are electrically connected to the metal terminal member 70 by, for example, brazing to the metal terminal member 70 (details will be described later), respectively.

As shown in fig. 3, a 1 st shaft portion 11 and a 2 nd shaft portion 21 penetrate through the winding portion 63 of the 1 st coil 61. Similarly, the other 1 st shaft portion 12 and the other 2 nd shaft portion 22 penetrate through the winding portion 63 of the 2 nd coil 62.

That is, the coil component 100 includes, as the coil 60, the 1 st coil 61 wound around one shaft portion and the 2 nd coil 62 wound around the other shaft portion.

The case member 30 includes a partition wall 34 (see fig. 3, 6, 7, 8, and 9) that partitions the arrangement region of (the winding portion 63 of) the first shaft portion and the 1 st coil 61 from the arrangement region of (the winding portion 63 of) the second shaft portion and the 2 nd coil 62.

In other words, the coil component 100 includes, as the coil 60, the 1 st coil 61 wound around the one 1 st shaft portion 11 and the one 2 nd shaft portion 21 and the 2 nd coil 62 wound around the other 1 st shaft portion 12 and the other 2 nd shaft portion 22, and the case member 30 has the partition wall portion 34 (see fig. 3, 6, 7, 8, and 9) that partitions the arrangement region of (the winding portion 63 of) the one 1 st shaft portion 11, the one 2 nd shaft portion 21, and the 1 st coil 61 from the arrangement region of (the winding portion 63 of) the other 1 st shaft portion 12, the other 2 nd shaft portion 22, and the 2 nd coil 62.

The partition wall portion 34 is erected in a range from one outer wall portion 40 to the other outer wall portion 50. Therefore, the case member 30 is reinforced by the partition wall portion 34, and the structural strength of the case member 30 is improved.

The partition wall 34 is disposed, for example, below the core holder 31. However, the height position of the upper surface of the partition wall portion 34 may be equal to the height position of the lower surface of the core holding portion 31.

In the partition wall portion 34, a surface facing the arrangement region side of (the winding portion 63 of) the 1 st shaft portion 11, the 2 nd shaft portion 21, and the 1 st coil 61 becomes the concave curved surface 35 along the winding portion 63 of the 1 st coil 61.

Similarly, in the partition wall portion 34, a surface facing the arrangement region side of the other 1 st shaft portion 12, the other 2 nd shaft portion 22, and the (winding portion 63 of the) 2 nd coil 62 becomes the concave curved surface 35 along the winding portion 63 of the 2 nd coil 62.

The upper and lower surfaces of the partition wall 34 are flat surfaces perpendicular to the Z direction.

The other surface 17 of the 1 st connecting portion 15 of the 1 st core 10 is parallel to the upper surface of the partition wall 34, and abuts against or is close to the upper surface (see fig. 3).

The other surface 27 of the 2 nd coupling portion 25 of the 2 nd core 20 is parallel to the lower surface of the partition wall portion 34. The other surface 27 may be in contact with the lower surface of the partition wall 34 or may be close to the lower surface of the partition wall 34, and in the example of fig. 3, the other surface 27 may be disposed below the lower surface of the partition wall 34 with a predetermined space therebetween.

As shown in fig. 7 and 8, the coil component 100 includes, for example, a metal terminal member 71 electrically connected to the one end 64 of the 1 st coil 61, a metal terminal member 72 electrically connected to the one end 64 of the 2 nd coil 62, a metal terminal member 73 electrically connected to the other end 65 of the 1 st coil 61, and a metal terminal member 74 electrically connected to the other end 65 of the 2 nd coil 62 as the metal terminal members 70.

Two of the metal terminal members 71, 72 are provided on one outer wall portion 40, and the other two metal terminal members 73, 74 are provided on the other outer wall portion 50.

The metal terminal members 71 and 72 are arranged in the Y direction, the metal terminal members 73 and 74 are arranged in the Y direction, the metal terminal members 71 and 73 are arranged in the X direction, and the metal terminal members 72 and 74 are arranged in the X direction.

One outer wall portion 40 of the pair of outer wall portions 40, 50 has a 1 st opposing surface 41 (fig. 6, 8) facing the other outer wall portion 50 side. The other outer wall portion 50 has a 2 nd opposite face 51 (fig. 6, 7, 9) facing the side of the one outer wall portion 40.

As shown in fig. 6, the entire metal terminal member 70 (metal terminal members 71, 72) provided on one outer wall portion 40 is disposed at a position farther from the other outer wall portion 50 than the 1 st opposing surface 41 is from the other outer wall portion 50 (see also fig. 9).

Similarly, as shown in fig. 6 and 9, the entire metal terminal member 70 (metal terminal members 73, 74) provided on the other outer wall portion 50 is disposed at a position farther from the one outer wall portion 40 than the 2 nd opposing surface 51 is from the one outer wall portion 40.

This allows the case member 30 to have a structure in which a part thereof is interposed between the metal terminal member 70 and the core (the 1 st core 10, the 2 nd core 20), and thus the pressure resistance between the terminal (each metal terminal member 70) and the core (the 1 st core 10, the 2 nd core 20) can be more sufficiently ensured.

As shown in fig. 6 and 9, one end 64 of the coil 60 is held by a metal terminal member 70 provided to one outer wall 40 of the pair of outer wall 40, 50. That is, the one end 64 of the 1 st coil 61 is held by the metal terminal member 71, and the one end 64 of the 2 nd coil 62 is held by the metal terminal member 72.

The other end portion 65 of the coil 60 is held by a metal terminal member 70 provided in the other outer wall portion 50 of the pair of outer wall portions 40, 50. That is, the other end portion 65 of the 1 st coil 61 is held by the metal terminal member 73, and the other end portion 65 of the 2 nd coil 62 is held by the metal terminal member 74.

This realizes a structure in which the coil 60 is bridged between the pair of outer wall portions 40 and 50.

The coil 60 is brought into non-contact with the core. That is, the coil 60 is in a non-contact state with respect to either the 1 st core 10 or the 2 nd core 20. That is, the 1 st coil 61 and the 2 nd coil 62 are in a non-contact state with respect to any one of the 1 st core 10 and the 2 nd core 20, respectively.

This can sufficiently ensure the pressure resistance between the coil 60 and the cores (the 1 st core 10 and the 2 nd core 20), and further, the pressure resistance between the terminals (the metal terminal members 70) and the cores (the 1 st core 10 and the 2 nd core 20) can be more sufficiently ensured.

As shown in fig. 3, a gap 81 exists between the outer peripheral surface of a 1 st shaft portion 11 of the 1 st core 10 and the outer peripheral surface of a 2 nd shaft portion 21 of the 2 nd core 20 and the inner periphery of the winding portion 63 of the 1 st coil 61.

Similarly, a gap 81 exists between the outer peripheral surface of the other 1 st shaft portion 12 of the 1 st core 10 and the outer peripheral surface of the other 2 nd shaft portion 22 of the 2 nd core 20 and the inner periphery of the winding portion 63 of the 2 nd coil 62.

More specifically, the coil 60 is in a non-contact state with respect to the case member 30. That is, both ends of the coil 60 are held by the metal terminal members 70 provided to the housing member 30, and the coil 60 is bridged between the metal terminal members 70.

As shown in fig. 8, the metal terminal member 70 has: an insertion portion 75 which is inserted and fixed to the outer wall portions 40, 50; a coil end holding portion 76 (see fig. 9) that holds the end portions (one end portion 64, the other end portion 65) of the coil 60 in a conductive state; and terminal portions 77 (see fig. 9) disposed on the lower surfaces 43, 53 of the outer wall portions 40, 50.

Therefore, the insertion portion 75 can be easily fixed to the outer wall portions 40 and 50 by inserting and fixing the insertion portion 75, and the end portion of the coil 60 can be held in the on state by the coil end holding portion 76, and the coil component 100 can be mounted on a substrate or the like using the terminal portion 77 arranged on the lower surfaces 43 and 53 of the outer wall portions 40 and 50.

The metal terminal member 70 is formed by bending a metal plate, for example.

The terminal portion 77 is formed in a flat plate shape, for example. The shape of the terminal portion 77 is not particularly limited, and is formed in a rectangular shape, for example. The terminal portion 77 of the metal terminal member 71 and the terminal portion 77 of the metal terminal member 72 are provided along the lower surface 43 of the terminal arrangement portion 45 of the outer wall portion 40.

The terminal portion 77 of the metal terminal member 73 and the terminal portion 77 of the metal terminal member 74 are provided along the lower surface 53 of the terminal arrangement portion 55 of the other outer wall portion 50.

The insertion portion 75 is formed in a flat plate shape, for example. The shape of the insertion portion 75 is not particularly limited, and is, for example, a shape in which the tip side branches into two branches, i.e., a U-shape. The insertion portion 75 is bent at a right angle to the terminal portion 77, for example, and rises upward from one side (hereinafter referred to as the 1 st side) of the terminal portion 77.

The coil end holding portion 76 protrudes from the 2 nd side of the terminal portion 77 adjacent to the 1 st side. The coil end holding portion 76 is bent into a curved shape (Ω -shaped) that protrudes upward. In addition, the coil end holding portion 76 is bifurcated at the portion on the tip end side in the protruding direction from the terminal portion 77, and the portion is excellent in bending deformability.

The coil end holding portion 76 is pressed in a state where the one end portion 64 or the other end portion 65 of the coil 60 is inserted into the inside of the bent shape portion of the coil end holding portion 76, whereby the one end portion 64 or the other end portion 65 of the coil 60 is held by the coil end holding portion 76.

Among the portions of the metal terminal member 70, the terminal portion 77 is located at the lowest position.

A pair of insertion holes 49 are formed in the terminal arrangement portion 45 of the one outer wall portion 40. The pair of insertion holes 49 have open ends at the lower surface 43, respectively. These insertion holes 49 are arranged in the Y direction. The insertion hole 49 is formed as: the dimensions in the Y-direction and Z-direction are relatively large and the dimensions in the X-direction are relatively small. An insertion hole 49 is provided for insertion and fixation of the insertion portion 75 of the metal terminal member 71. The other insertion hole 49 is inserted and fixed by an insertion portion 75 of the metal terminal member 72.

Similarly, a pair of insertion holes 59 are formed in the terminal arrangement portion 55 of the other outer wall portion 50. The pair of insertion holes 59 have open ends at the lower surface 53, respectively. These insertion holes 59 are arranged in the Y direction. The insertion hole 59 is formed as: the dimensions in the Y-direction and Z-direction are relatively large and the dimensions in the X-direction are relatively small. An insertion hole 59 is provided for insertion and fixation of the insertion portion 75 of the metal terminal member 73. The other insertion hole 59 is inserted and fixed by the insertion portion 75 of the metal terminal member 74.

Here, as shown in fig. 4, the insertion hole 59 is formed in a U-shape corresponding to the insertion portion 75 having a U-shape, and the insertion portion 75 is press-fitted to the inner surface of the insertion hole 59 with good adhesion.

Similarly, although not shown, the insertion hole 49 is also formed in a U-shape corresponding to the insertion portion 75, and the insertion portion 75 is press-fitted into the inner surface of the insertion hole 49 with good adhesion.

In addition to the case where the metal terminal member 70 is pressed into the housing member 30, the metal terminal member 70 and the housing member may be integrated by various techniques such as insert molding.

The metal terminal member 70 also has an opposing portion 78. The opposing portion 78 is formed in a flat plate shape, for example. The shape of the opposing portion 78 is not particularly limited, and is formed in a rectangular shape, for example. The opposing portion 78 is raised upward from a 3 rd side (side adjacent to the 2 nd side) of the terminal portion 77 opposing the 1 st side. Thus, the opposing portion 78 opposes the insertion portion 75 in parallel.

The opposing portion 78 of the metal terminal member 71 and the opposing portion 78 of the metal terminal member 72 are disposed along a portion adjacent to the lower surface 43 on the 1 st outer side surface 42 of the outer wall portion 40. More specifically, a pair of shallow recesses 47 (fig. 7) are formed in the 1 st outer surface 42 at positions adjacent to the lower surface 43. The pair of concave portions 47 are arranged in the Y direction. One recess 47 is provided for the opposing portion 78 of the metal terminal member 71, and the other recess 47 is provided for the opposing portion 78 of the metal terminal member 72.

The opposing portion 78 of the metal terminal member 73 and the opposing portion 78 of the metal terminal member 74 are disposed along a portion adjacent to the lower surface 53 on the 2 nd outer side surface 52 of the other outer wall portion 50. More specifically, a pair of shallower concave portions 57 (fig. 8) are formed in the portion of the 2 nd outer surface 52 adjacent to the lower surface 53. The pair of concave portions 57 are arranged in the Y direction. One recess 57 is provided for the opposing portion 78 of the metal terminal member 73, and the other recess 57 is provided for the opposing portion 78 of the metal terminal member 74.

Here, the terminal arrangement portion 45 has a separation step 46 formed in a range from the lower surface 43 to the 1 st outer surface 42, for example. The partition step 46 is formed at the lower surface 43 to be higher than the other portions by one layer. The partition step 46 is formed flush with the 1 st outer side 42 except for the recess 47 (that is, is formed one layer higher than the recess 47) of the 1 st outer side 42. The arrangement region of the metal terminal member 71 and the arrangement region of the metal terminal member 72 are separated from each other by the separation step portion 46 (see fig. 9).

Similarly, the terminal arrangement portion 55 has a separation step portion 56 formed, for example, in a range from the lower surface 53 to the 2 nd outer surface 52. The partition step 56 is formed on the lower surface 53 to be higher than the other portions by one layer. The partition step 56 is formed flush with the portion of the 2 nd outer side surface 52 other than the recess 57 (that is, formed higher than the recess 57 by one layer) on the 2 nd outer side surface 52. The arrangement region of the metal terminal member 73 and the arrangement region of the metal terminal member 74 are partitioned from each other by the partition step portion 56.

Inclined surfaces 48 are formed between the concave portions 47 and the lower surface 43. Similarly, inclined surfaces 58 are formed between the concave portions 57 and the lower surface 53, respectively.

Accordingly, the opposing portion 78 and the terminal portion 77 of the metal terminal member 70 can be easily arranged along the lower surface 43 from the concave portion 47, and the opposing portion 78 and the terminal portion 77 of the metal terminal member 70 can be easily arranged along the lower surface 53 from the concave portion 57.

The inclination angle of the inclined surface 58 is larger than 45 degrees, for example. That is, the angle between the lower surface 53 and the inclined surface 58 is larger than the angle between the concave portion 57 and the inclined surface 58. Also, the inclination angle of the inclined surface 48 is larger than 45 degrees, for example.

Lower surface side concave portions 44, 54 recessed toward the upper surface side of the outer wall portions 40, 50 are formed on the lower surfaces 43, 53 of the outer wall portions 40, 50. The lower surface side concave portions 44, 54 are arranged with the coil end holding portion 76.

Therefore, when the coil component 100 is mounted on a substrate or the like, interference between the coil end holding portion 76 and the substrate or the like can be suppressed.

More specifically, the lower end position of the coil end holding portion 76 is located above the lower surfaces 43 and 53 (see fig. 4). Therefore, interference between the coil end holding portion 76 and the substrate or the like can be suppressed more reliably.

As shown in fig. 8, the outer wall portion 40 includes: a pair of lower surface side concave portions 44; and terminal arrangement portions 45 arranged between the lower surface side concave portions 44 and arranged for the terminal portions 77 (see fig. 9).

In a direction (Y direction shown in fig. 9) parallel to the arrangement direction of the arrangement region of the one shaft portion and the arrangement region of the other shaft portion, one of the pair of lower surface side concave portions 44, the terminal arrangement portion 45, and the other lower surface side concave portion 44 of the pair of lower surface side concave portions 44 are arranged in this order. That is, in a direction (Y direction shown in fig. 9) parallel to the arrangement direction of the arrangement regions of the one 1 st shaft portion 11 and the one 2 nd shaft portion 21 and the arrangement regions of the other 1 st shaft portion 12 and the other 2 nd shaft portion 22, one of the pair of lower surface side concave portions 44, the terminal arrangement portion 45, and the other lower surface side concave portion 44 of the pair of lower surface side concave portions 44 are arranged in this order.

Similarly, the outer wall portion 50 has: a pair of lower surface side recesses 54; and terminal arrangement portions 55 arranged between the lower surface side concave portions 54, and arranged for the terminal portions 77 (see fig. 9).

In a direction (Y direction shown in fig. 9) parallel to the arrangement direction of the arrangement region of the one shaft portion and the arrangement region of the other shaft portion, one of the pair of lower surface side concave portions 54, the terminal arrangement portion 55, and the other lower surface side concave portion 54 of the pair of lower surface side concave portions 54 are arranged in this order. That is, in a direction (Y direction shown in fig. 9) parallel to the arrangement direction of the arrangement regions of one 1 st shaft portion 11 and one 2 nd shaft portion 21 and the arrangement regions of the other 1 st shaft portion 12 and the other 2 nd shaft portion 22, one of the pair of lower surface side concave portions 54, the terminal arrangement portion 55, and the other lower surface side concave portion 54 of the pair of lower surface side concave portions 54 are arranged in this order.

The lower surface side concave portion 44 is arranged for the coil end holding portion 76 of the metal terminal member 71, and the other lower surface side concave portion 44 is arranged for the coil end holding portion 76 of the metal terminal member 72.

The lower surface side concave portion 54 is arranged for the coil end holding portion 76 of the metal terminal member 73, and the other lower surface side concave portion 54 is arranged for the coil end holding portion 76 of the metal terminal member 74.

More specifically, a pair of lower surface side concave portions 44 are arranged at the end portions of the one outer wall portion 40 in a direction (Y direction shown in fig. 9) parallel to the arrangement direction of the arrangement regions of the one 1 st shaft portion 11 and the one 2 nd shaft portion 21 and the arrangement regions of the other 1 st shaft portion 12 and the other 2 nd shaft portion 22. Each of the lower surface side concave portions 44 is opened in the Y direction to the side opposite to the terminal arrangement portion 45 side, is also opened in the downward direction, and is also opened to both sides in the X direction orthogonal to the up-down direction and the Y direction.

Similarly, a pair of lower surface side concave portions 54 are arranged at the end portion of the other outer wall portion 50 in the Y direction. Each of the lower surface side concave portions 54 is opened in the Y direction to the side opposite to the terminal arrangement portion 55 side, is also opened in the downward direction, and is also opened to both sides in the X direction orthogonal to the up-down direction and the Y direction.

Therefore, the operation of connecting the end portions (one end portion 64, the other end portion 65) of the coil 60 to the coil end holding portion 76 can be easily performed.

Each of the lower surface side concave portions 44 and 54 is, for example, a concave portion having a substantially rectangular parallelepiped shape.

The coil component 100 does not include a bobbin, and the winding portion 63 of the 1 st coil 61 is wound around the 1 st shaft portion 11 and the 2 nd shaft portion 21 in a non-contact state with respect to the 1 st shaft portion 11 of the 1 st core 10 and the 2 nd shaft portion 21 of the 2 nd core 20.

The coil component 100 can be assembled as follows, for example.

First, the insertion portions 75 of the respective metal terminal members 70 are respectively inserted into and press-fitted into the corresponding insertion holes 49 or 59, whereby the respective metal terminal members 70 are mounted to the housing member 30. The metal terminal member 70 may be attached to the housing member 30 using an adhesive.

Next, the 1 st coil 61 and the 2 nd coil 62, which are formed in advance in the shape having the winding portion 63, the one end portion 64, and the other end portion 65 as shown in fig. 7, are pressed and fixed to the coil end holding portion 76 of the corresponding metal terminal member 70. That is, the one end 64 of the 1 st coil 61 is pressed against the coil end holding portion 76 fixed to the metal terminal member 71, and the other end 65 of the 1 st coil 61 is pressed against the coil end holding portion 76 fixed to the metal terminal member 73. The one end 64 of the 2 nd coil 62 is pressed against and fixed to the coil end holding portion 76 of the metal terminal member 72, and the other end 65 of the 2 nd coil 62 is pressed against and fixed to the coil end holding portion 76 of the metal terminal member 74. The winding portion 63 of the 1 st coil 61 and the winding portion 63 of the 2 nd coil 62 are disposed in the housing portion 36, and the winding portion 63 of the 1 st coil 61 and the winding portion 63 of the 2 nd coil 62 are separated from each other by the partition wall portion 34.

Next, from the upper side of the case member 30, the 1 st shaft portion 11 of the 1 st core 10 is inserted into the winding portion 63 of the 1 st coil 61, and the 1 st shaft portion 12 is inserted into the winding portion 63 of the 2 nd coil 62, and the 1 st connecting portion 15 of the 1 st core 10 is press-fitted and fixed into the opening 32 of the core holding portion 31. In addition, from the lower side of the case member 30, the 2 nd shaft portion 21 of the 2 nd core 20 is inserted into the winding portion 63 of the 1 st coil 61, and the other 2 nd shaft portion 22 is inserted into the winding portion 63 of the 2 nd coil 62. Then, the distal end face 13 of the 1 st shaft portion 11 and the distal end face 23 of the 2 nd shaft portion 21 are fixed to each other by an adhesive, and the distal end face 14 of the 1 st shaft portion 12 and the distal end face 24 of the 2 nd shaft portion 22 are fixed to each other by an adhesive.

Thus, the coil component 100 is obtained.

The coil component 100 may be provided with a molding resin, not shown.

< modification >

Next, a coil component 100 according to a modification will be described with reference to fig. 10 (a) to 11 (b). The coil component 100 according to the present modification is different from the coil component 100 according to the above-described embodiment in the points described below, and is similar to the coil component 100 according to the above-described embodiment in the other points.

As shown in fig. 10 a and 11 a, in the case of the present modification, a pair of projections 91 (convex portions) are formed on the inner peripheral surface of the opening 32 of the case member 30 in addition to the projections 33 having the angle of 4. That is, the case member 30 has a pair of projections 91. These protrusions 91 are arranged in the center of the opening 32 in the Y direction. One protruding portion 91 protrudes from the inner periphery of the opening 32 in one direction in the X direction, and the other protruding portion 91 protrudes from the inner periphery of the opening 32 in the opposite direction in the X direction.

The projection 91 has a substantially triangular shape in plan view, and gradually narrows in width toward the tip side (inner side of the opening 32) in the projection direction of the projection 91. The top of the protrusion 91 (the tip end portion in the protruding direction of the protrusion 91) is formed with a circular shape.

The upper surface of the projection 91 is, for example, a flat horizontal surface, and is flush with the upper surface 37 of the housing member 30. The protrusion 91 is disposed on the upper surface of the partition wall 34. The lower end of the projection 91 reaches the upper surface of the partition wall 34.

A pair of concave portions 19 corresponding to the respective protruding portions 91 are formed on the outer peripheral surface 18 (side peripheral surface) of the 1 st coupling portion 15 of the 1 st core 10. The concave portions 19 are arranged at positions corresponding to the respective protruding portions 91.

Each concave portion 19 has a shape corresponding to each protrusion 91, and is formed in a range from the upper end to the lower end of the 1 st connecting portion 15. That is, each concave portion 19 has a substantially triangular shape in plan view, gradually narrows in width in the depth direction, and has a circular shape at the innermost portion.

As shown in fig. 10 (a), in a state in which the 1 st coupling portion 15 of the 1 st core 10 is held by the core holding portion 31 of the housing member 30, one protruding portion 91 enters one recessed portion 19, and the other protruding portion 91 enters the other recessed portion 19. That is, the protrusion 91 is fitted into the recess 19. This can suppress misalignment of the 1 st core 10 with respect to the case member 30.

As shown in fig. 10 b and 11 b, a protrusion 92 (convex portion) is formed on the 1 st opposing surface 41 of one outer wall portion 40 and the 2 nd opposing surface 51 of the other outer wall portion 50, respectively. That is, the case member 30 has a pair of projections 92.

A protrusion 92 protrudes from the center portion of the 1 st opposing surface 41 in the Y direction toward one direction (the 2 nd opposing surface 51 side) in the X direction. The other projection 92 projects from the center portion of the 2 nd opposing surface 51 in the Y direction in the opposite direction (1 st opposing surface 41 side) in the X direction.

The shape of the protrusion 92 is the same as the shape of the protrusion 91. That is, the protruding portion 92 has a substantially triangular shape in plan view, and gradually narrows in width toward the tip end side in the protruding direction of the protruding portion 92. The top of the protrusion 92 (the tip end portion in the protruding direction of the protrusion 92) is formed with a circular shape.

The lower surface of the projection 92 is, for example, a flat horizontal surface. The lower surface of one of the protruding portions 92 is substantially flush with the lower surface 43 of the outer wall portion 40, and the lower surface of the other protruding portion 92 is substantially flush with the lower surface 53 of the outer wall portion 50. Each of the projections 92 is disposed below the upper surface of the partition wall 34. The upper end of the projection 92 reaches the lower surface of the partition wall 34.

A pair of concave portions 29 corresponding to the respective protruding portions 92 are formed on the outer peripheral surface 28 (side peripheral surface) of the 2 nd coupling portion 25 of the 2 nd core 20. The concave portion 29 is disposed at a position corresponding to each of the protruding portions 92.

The shape of the recess 29 is the same as the shape of the recess 19. That is, each concave portion 29 has a shape corresponding to each protruding portion 92, and is formed in a range from the upper end to the lower end of the 2 nd coupling portion 25. That is, each concave portion 29 has a substantially triangular shape in plan view, gradually narrows in width in the depth direction, and has a circular shape at the innermost portion.

In the state where the 2 nd core 20 is fixed to the 1 st core 10, as shown in fig. 10 (b), one protruding portion 92 enters one concave portion 29, and the other protruding portion 92 enters the other concave portion 29. That is, the protrusion 92 is fitted into the recess 29. This can suppress misalignment of the 2 nd core 20 with respect to the case member 30.

In the present modification, the recess 19 and the recess 29 are formed in the 1 st connecting portion 15 and the 2 nd connecting portion 25, respectively, and the protrusions 91 and 92 to be fitted in the recess 19 and the recess 29 are formed in the case member 30, but the present invention is not limited to this example, and the recess formed in the case member 30 may be fitted in the protrusion formed in the 1 st connecting portion 15 and the 2 nd connecting portion 25.

As the coil component 100, a coil component having the following structure can be used in this way: the concave portion or convex portion formed in the 1 st opposing portion (1 st connecting portion 15) is fitted with the convex portion or concave portion formed in the housing member 30, and the concave portion or convex portion formed in the 2 nd opposing portion (2 nd connecting portion 25) is fitted with the convex portion or concave portion formed in the housing member 30.

The embodiments and modifications have been described above with reference to the drawings, but the embodiments and modifications are examples of the present invention, and various configurations other than the above can be adopted.

For example, in the above embodiment and modification, the example in which the 1 st core 10 and the 2 nd core 20 are each U-shaped cores has been described, but one of the 1 st core 10 and the 2 nd core 20 (for example, the 2 nd core 20) may be an I-shaped core such as a plate. In this case, one shaft portion is constituted by the 1 st shaft portion 11 of the 1 st core 10, and the other shaft portion is constituted by the 1 st shaft portion 12 of the 1 st core 10. The 2 nd core 20 does not constitute a shaft portion.

The present embodiment includes the following technical ideas.

< 1 > a coil component, wherein,

the coil component includes:

a core portion having a pair of shaft portions arranged in parallel with each other, a 1 st opposing portion arranged across one end portions of the pair of shaft portions, and a 2 nd opposing portion arranged across the other end portions of the pair of shaft portions;

a case member which is made of an insulating material and supports the core;

a coil wound around the pair of shaft portions; and

a metal terminal member electrically connected to the coil,

the 1 st opposing portion and the 2 nd opposing portion are disposed opposite to each other with the pair of shaft portions sandwiched therebetween,

The housing member has:

a housing section for housing the core section; and

a pair of outer wall portions which are disposed opposite to each other with the core portion interposed therebetween and which stand up in the up-down direction,

the metal terminal members are provided on the pair of outer wall portions, respectively.

The coil component according to < 2 > to < 1 >, wherein,

one of the pair of outer wall portions has a 1 st opposite face toward the side of the other outer wall portion,

the other outer wall portion has a 2 nd opposite face facing the side of the one outer wall portion,

the metal terminal member provided on the one outer wall portion is disposed entirely at a position distant from the other outer wall portion by a distance greater than a distance from the 1 st opposing surface to the other outer wall portion,

the metal terminal member is disposed on the other outer wall portion at a position distant from the one outer wall portion by a distance greater than a distance from the 2 nd facing surface to the one outer wall portion.

The coil component described in < 3 > according to < 1 > or < 2 >, wherein,

one end portion of the coil is held by the metal terminal member provided to one of the pair of outer wall portions,

the other end portion of the coil is held by the metal terminal member provided to the other one of the pair of outer wall portions.

The coil component according to any one of < 1 > < 3 >,

the coil is in a non-contact state with respect to the core.

The coil component according to any one of < 1 > < 4 >,

the coil is in a non-contact state with respect to the housing member.

The coil component according to any one of < 1 > < 5 >,

the metal terminal member has:

an insertion portion which is inserted and fixed to the outer wall portion;

a coil end holding unit that holds an end of the coil in a conductive state; and

and a terminal portion disposed on a lower surface of the outer wall portion.

A coil component according to < 7 > and < 6 >, wherein,

a lower surface side concave portion recessed toward an upper surface side of the outer wall portion is formed on the lower surface of the outer wall portion,

the lower surface side concave portion is configured by the coil end holding portion.

The coil component according to < 8 > to < 7 >, wherein,

the outer wall portion has: a pair of lower surface side recesses; and terminal arrangement parts which are arranged between the lower surface side concave parts and are used for arranging the terminal parts,

in a direction parallel to an arrangement direction of the arrangement region of one of the shaft portions and the arrangement region of the other of the shaft portions, one of the pair of lower surface side recesses, the terminal arrangement portion, and the other of the pair of lower surface side recesses are arranged in this order.

The coil component according to any one of < 1 > < 8 >,

the housing member has a core holding portion for holding the 1 st opposing portion,

the pair of outer wall portions protrude downward from the core holding portion, respectively.

The coil component according to < 10 > to < 9 >, wherein,

the 1 st opposing portion is press-fitted and fixed to the core holding portion.

The coil component according to any one of < 1 > < 10 >,

the coil component includes a 1 st coil wound around one of the shaft portions and a 2 nd coil wound around the other of the shaft portions as the coils,

the case member further has a partition wall portion that partitions the arrangement region of the one shaft portion and the 1 st coil from the arrangement region of the other shaft portion and the 2 nd coil.

The coil component according to any one of < 1 > < 11 >,

the concave portion or convex portion formed in the 1 st opposing portion is fitted with the convex portion or concave portion formed in the housing member,

and the concave portion or convex portion formed in the 2 nd opposing portion is fitted with the convex portion or concave portion formed in the housing member.

The coil component according to any one of < 1 > < 12 >,

The core comprises:

a 1 st core having the 1 st facing portion and a pair of 1 st shaft portions arranged in parallel with each other; and

a 2 nd core having the 2 nd facing portion and a pair of 2 nd shaft portions arranged in parallel with each other,

the 1 st opposing portion connects the pair of 1 st shaft portions to each other,

the 2 nd opposite portion connects the pair of 2 nd shaft portions to each other,

a 1 st shaft portion of the pair of 1 st shaft portions and a 2 nd shaft portion of the pair of 2 nd shaft portions are coaxially arranged with each other to constitute one of the shaft portions,

the other 1 st shaft portion of the pair of 1 st shaft portions and the other 2 nd shaft portion of the pair of 2 nd shaft portions are coaxially arranged with each other to constitute the other of the shaft portions.

The present embodiment includes the following technical ideas.

(1) A coil component, wherein,

the coil component includes:

a 1 st core having a pair of 1 st shaft portions arranged in parallel with each other and a 1 st coupling portion coupling the pair of 1 st shaft portions to each other;

a 2 nd core having a pair of 2 nd shaft portions arranged in parallel with each other and a 2 nd coupling portion coupling the pair of 2 nd shaft portions to each other;

a case member which is made of an insulating material and supports the 1 st core and the 2 nd core;

A coil wound around the 1 st shaft portion and the 2 nd shaft portion; and

a metal terminal member electrically connected to the coil,

the 1 st connecting portion and the 2 nd connecting portion are arranged so as to face each other with the pair of 1 st shaft portions and the pair of 2 nd shaft portions sandwiched therebetween,

a 1 st shaft portion of the pair of 1 st shaft portions and a 2 nd shaft portion of the pair of 2 nd shaft portions are arranged coaxially with each other,

the other 1 st shaft portion of the pair of 1 st shaft portions and the other 2 nd shaft portion of the pair of 2 nd shaft portions are arranged coaxially with each other,

the housing member has:

a housing section for housing the 1 st core and the 2 nd core; and

a pair of outer wall portions which are disposed so as to face each other with the 1 st core and the 2 nd core interposed therebetween and which stand up in the up-down direction,

the metal terminal members are provided on the pair of outer wall portions, respectively.

(2) The coil component according to (1), wherein,

one of the pair of outer wall portions has a 1 st opposite face toward the side of the other outer wall portion,

the other outer wall portion has a 2 nd opposite face facing the side of the one outer wall portion,

the metal terminal member provided on the one outer wall portion is disposed entirely at a position distant from the other outer wall portion by a distance greater than a distance from the 1 st opposing surface to the other outer wall portion,

The metal terminal member is disposed on the other outer wall portion at a position distant from the one outer wall portion by a distance greater than a distance from the 2 nd facing surface to the one outer wall portion.

(3) The coil component according to (1) or (2), wherein,

one end portion of the coil is held by the metal terminal member provided to one of the pair of outer wall portions,

the other end portion of the coil is held by the metal terminal member provided to the other one of the pair of outer wall portions.

(4) The coil component according to any one of (1) to (3), wherein,

the coil is in a non-contact state with respect to either of the 1 st core and the 2 nd core.

(5) The coil component according to any one of (1) to (4), wherein,

the coil is in a non-contact state with respect to the housing member.

(6) The coil component according to any one of (1) to (5), wherein,

the metal terminal member has:

an insertion portion which is inserted and fixed to the outer wall portion;

a coil end holding unit that holds an end of the coil in a conductive state; and

and a terminal portion disposed on a lower surface of the outer wall portion.

(7) The coil component according to (6), wherein,

A lower surface side concave portion recessed toward an upper surface side of the outer wall portion is formed on the lower surface of the outer wall portion,

the lower surface side concave portion is configured by the coil end holding portion.

(8) The coil component according to (7), wherein,

the outer wall portion has: a pair of lower surface side recesses; and terminal arrangement parts which are arranged between the lower surface side concave parts and are used for arranging the terminal parts,

in a direction parallel to an arrangement direction of the arrangement regions of the one 1 st shaft portion and the one 2 nd shaft portion and the arrangement regions of the other 1 st shaft portion and the other 2 nd shaft portion, one of the pair of lower surface side concave portions, the terminal arrangement portion, and the other of the pair of lower surface side concave portions are arranged in this order.

(9) The coil component according to any one of (1) to (8), wherein,

the case member has a core holding portion for holding the 1 st coupling portion of the 1 st core,

the pair of outer wall portions protrude downward from the core holding portion, respectively.

(10) The coil component according to (9), wherein,

the 1 st connecting portion is press-fitted and fixed to the core holding portion.

(11) The coil component according to any one of (1) to (10), wherein,

the coil component includes, as the coils, a 1 st coil wound around the one 1 st shaft portion and the one 2 nd shaft portion and a 2 nd coil wound around the other 1 st shaft portion and the other 2 nd shaft portion,

the case member further includes a partition wall portion that partitions the arrangement regions of the one 1 st shaft portion, the one 2 nd shaft portion, and the 1 st coil from the arrangement regions of the other 1 st shaft portion, the other 2 nd shaft portion, and the 2 nd coil.

Claims (12)

1. A coil component, wherein,

the coil component includes:

a core portion having a pair of shaft portions arranged in parallel with each other, a 1 st opposing portion arranged across one end portions of the pair of shaft portions, and a 2 nd opposing portion arranged across the other end portions of the pair of shaft portions;

a case member which is made of an insulating material and supports the core;

a coil wound around the pair of shaft portions; and

a metal terminal member electrically connected to the coil,

the 1 st opposing portion and the 2 nd opposing portion are disposed opposite to each other with the pair of shaft portions sandwiched therebetween,

the housing member has:

A housing section for housing the core section; and

a pair of outer wall portions which are disposed opposite to each other with the core portion interposed therebetween and which stand up in the up-down direction,

the metal terminal members are provided on the pair of outer wall portions,

the coil component is not provided with a bobbin,

the coil is in a non-contact state with respect to the core.

2. The coil component of claim 1, wherein,

one of the pair of outer wall portions has a 1 st opposite face toward the side of the other outer wall portion,

the other outer wall portion has a 2 nd opposite face facing the side of the one outer wall portion,

the metal terminal member provided on the one outer wall portion is disposed entirely at a position distant from the other outer wall portion by a distance greater than a distance from the 1 st opposing surface to the other outer wall portion,

the metal terminal member is disposed on the other outer wall portion at a position distant from the one outer wall portion by a distance greater than a distance from the 2 nd facing surface to the one outer wall portion.

3. The coil component according to claim 1 or 2, wherein,

one end portion of the coil is held by the metal terminal member provided to one of the pair of outer wall portions,

The other end portion of the coil is held by the metal terminal member provided to the other one of the pair of outer wall portions.

4. The coil component according to claim 1 or 2, wherein,

the coil is in a non-contact state with respect to the housing member.

5. The coil component according to claim 1 or 2, wherein,

the metal terminal member has:

an insertion portion which is inserted and fixed to the outer wall portion;

a coil end holding unit that holds an end of the coil in a conductive state; and

and a terminal portion disposed on a lower surface of the outer wall portion.

6. The coil component of claim 5, wherein,

a lower surface side concave portion recessed toward an upper surface side of the outer wall portion is formed on the lower surface of the outer wall portion,

the lower surface side concave portion is configured by the coil end holding portion.

7. The coil component of claim 6, wherein,

the outer wall portion has: a pair of lower surface side recesses; and terminal arrangement parts which are arranged between the lower surface side concave parts and are used for arranging the terminal parts,

the one of the pair of lower surface side recesses, the terminal arrangement portion, and the other of the pair of lower surface side recesses are arranged in order in a direction parallel to an arrangement direction of the arrangement region of the one shaft portion and the arrangement region of the other shaft portion.

8. The coil component according to claim 1 or 2, wherein,

the housing member has a core holding portion for holding the 1 st opposing portion,

the pair of outer wall portions protrude downward from the core holding portion, respectively.

9. The coil component of claim 8, wherein,

the 1 st opposing portion is press-fitted and fixed to the core holding portion.

10. The coil component according to claim 1 or 2, wherein,

the coil component includes a 1 st coil wound around one of the shaft portions and a 2 nd coil wound around the other of the shaft portions as the coils,

the case member further has a partition wall portion that partitions an arrangement region of one of the shaft portions and the 1 st coil from an arrangement region of the other of the shaft portions and the 2 nd coil.

11. The coil component according to claim 1 or 2, wherein,

the concave portion or convex portion formed in the 1 st opposing portion is fitted with the convex portion or concave portion formed in the housing member,

and the concave portion or convex portion formed in the 2 nd opposing portion is fitted with the convex portion or concave portion formed in the housing member.

12. The coil component according to claim 1 or 2, wherein,

the core comprises:

a 1 st core having the 1 st facing portion and a pair of 1 st shaft portions arranged in parallel with each other; and

A 2 nd core having the 2 nd facing portion and a pair of 2 nd shaft portions arranged in parallel with each other,

the 1 st opposing portion connects the pair of 1 st shaft portions to each other,

the 2 nd opposite portion connects the pair of 2 nd shaft portions to each other,

a 1 st shaft portion of the pair of 1 st shaft portions and a 2 nd shaft portion of the pair of 2 nd shaft portions are coaxially arranged with each other to constitute one of the shaft portions,

the other 1 st shaft portion of the pair of 1 st shaft portions and the other 2 nd shaft portion of the pair of 2 nd shaft portions are coaxially arranged with each other to constitute the other of the shaft portions.