CN111354534B - coil parts - Google Patents

Abstract

Provided is a coil component having a structure capable of sufficiently ensuring voltage resistance between a terminal and a core. The coil component (100) includes: a core (first core 10 and second core 20) having a pair of shafts arranged in parallel with each other, a first opposing portion (first connecting portion 15) arranged between one ends of the pair of shafts, and a second opposing portion (second connecting portion 25) arranged between the other ends of the pair of shafts; a case member (30) made of an insulating material and supporting the core; a coil (60) wound on a pair of The shaft part; and the metal terminal member (70), which is electrically connected to the coil (60), and the housing member (30) has: a storage part (36), which is used to accommodate the core part; and a pair of outer wall parts (40, 50) which sandwich the core part and are arranged opposite to each other, and a metal terminal member (70) is respectively provided on the pair of outer wall parts (40, 50).

Description

coil parts

technical field

The present invention relates to a coil component.

Background technique

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 includes the following members: two bobbins arranged coaxially; a coil wound around each bobbin; a pair of cores one side of which penetrates each bobbin; a base supporting these cores; and a pin-shaped terminal protruding from the back surface of the base.

prior art literature

patent documents

Patent Document 1: Japanese Patent Application Laid-Open No. 8-213242

Contents of the invention

The problem to be solved by the invention

According to studies by the inventors of the present application, in the structure of the coil component of Patent Document 1, there is room for improvement regarding the withstand voltage between the terminal and the core.

The present invention has been made in view of the above-mentioned problems, and provides a coil component having a structure capable of ensuring sufficient voltage resistance between a terminal and a core.

solutions to problems

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 first opposing portion disposed between one end portions of the pair of shaft portions, and a second opposing portion disposed across the other end portions of the pair of shaft portions;

a housing member constructed of an insulating material and supporting the core;

a coil wound around the pair of shaft portions; and

a metal terminal member electrically connected to the coil,

The first opposing portion and the second opposing portion are arranged to face each other with the pair of shaft portions sandwiched therebetween,

The housing member has:

a housing portion for housing the core; and

A pair of outer wall parts are arranged to face each other with the core part in between, and stand vertically respectively,

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

The effect of the invention

According to the present invention, it is possible to sufficiently secure the withstand voltage between the terminal (metal terminal member) and the core.

Description of 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 of the embodiment.

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

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

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

6 is a bottom view of the coil component of the embodiment (however, illustration of the second core is omitted).

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

8 is an exploded perspective view of a case member and a metal terminal member of the coil component according to the embodiment viewed from the lower surface side.

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

(a) of FIG. 10 is a plan view of a coil component of a modified example, and FIG. 10(b) is a bottom view of a coil component of a modified example.

FIG. 11( a ) is an exploded perspective view of a modified coil component viewed from the upper side, and FIG. 11( b ) is an exploded perspective view of the modified coil component viewed from the lower side.

Explanation of reference signs

10, the first core; 11, the first shaft part (one first shaft part); 12, the first shaft part (another first shaft part); 13, 14, 23, 24, the top surface; 15, the first connecting part; Another 2nd shaft part); 25, 2nd connecting part; 28, outer peripheral surface; 29, recessed part; 30, case member; 31, core holding part; 32, opening; 33, protruding part; 34, partition wall part; 35, concave curved surface; 36, receiving part; 37, upper surface; 53, lower surface; 44, 54, lower surface side concave portion; 45, 55, terminal arrangement portion; 46, 56, partition step portion; 47, 57, concave portion; 48, 58, inclined surface; 49, 59, insertion hole; 50, outer wall portion (another outer wall portion); 51, second opposite surface; , one end; 65, the other end; 70, 71, 72, 73, 74, metal terminal member; 75, insertion part; 76, coil end holding part; 77, terminal part; 78, opposite part; 81, gap; 91, 92, protrusion; 100, coil part.

Detailed ways

Hereinafter, an embodiment of the present invention will be described using FIGS. 1 to 9 . In addition, in all drawings, the same code|symbol is attached|subjected to the same component, and description is abbreviate|omitted suitably.

As shown in FIG. 7 , the coil component 100 of the present embodiment includes: a core having a pair of shafts arranged in parallel to each other, a first opposing portion (first connecting portion 15 ) arranged straddling one end portions of the pair of shafts, and a second opposing portion (second connecting portion 25 ) disposed straddling the other ends of the pair of shafts; a case member 30 made of an insulating material and supporting the core; a coil 60 wound around the pair of shafts; The coil 60 is electrically connected.

As shown in FIG. 3 , the first opposing portion and the second opposing portion are arranged to face each other with a pair of shaft portions interposed therebetween.

The case member 30 has an accommodating portion 36 for accommodating the core, and a pair of outer wall portions 40 , 50 arranged to face each other with the core in between, and stand vertically respectively.

In addition, metal terminal members 70 are respectively provided on the pair of outer wall portions 40 , 50 .

According to the present embodiment, the coil component 100 has a structure in which 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 voltage resistance between the terminal (metal terminal member 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 first core 10 and the second core 20 . That is, the core includes: a first core 10 having a first opposing portion (first connecting portion 15) and a pair of first shafts 11, 12 arranged in parallel; and a second core 20 having a second opposing portion (second connecting portion 25) and a pair of second shafts 21, 22 arranged in parallel.

The first opposing portion (first connecting portion 15 ) connects the pair of first shaft portions 11 and 12 to each other.

The second opposing portion (second connecting portion 25 ) connects the pair of second shaft portions 21 and 22 to each other.

As shown in FIGS. 3 and 7 , one first shaft portion 11 of the pair of first shaft portions 11 , 12 and one second shaft portion 21 of the pair of second shaft portions 21 , 22 are coaxially arranged to form one shaft portion. Similarly, the other first shaft portion 12 of the pair of first shaft portions 11, 12 and the other second shaft portion 22 of the pair of second shaft portions 21, 22 are arranged coaxially with each other to constitute another shaft portion.

That is, in the case of this embodiment, a core part is comprised by combining two U-shaped cores (1st core 10 and 2nd core 20) mutually.

That is, the coil component 100 of the present embodiment includes: a first core 10 having a pair of first shaft portions 11, 12 arranged in parallel and a first connecting portion 15 connecting the pair of first shaft portions 11, 12; a second core 20 having a pair of second shaft portions 21, 22 arranged in parallel and a second connecting portion 25 connecting the pair of second shaft portions 21, 22; and a case member 30 formed of an insulating material and supported. The first core 10 and the second core 20 ; the coil 60 wound around the first shafts 11 , 12 and the second shafts 21 , 22 ; and the metal terminal member 70 electrically connected to the coil 60 .

As shown in FIG. 3 , the first connection portion 15 and the second connection portion 25 are arranged to face each other with the pair of first shaft portions 11 and 12 and the pair of second shaft portions 21 and 22 sandwiched therebetween. One first shaft portion 11 of the pair of first shaft portions 11 , 12 and one second shaft portion 21 of the pair of second shaft portions 21 , 22 are arranged coaxially with each other. The other first shaft portion 12 of the pair of first shaft portions 11 , 12 and the other second shaft portion 22 of the pair of second shaft portions 21 , 22 are arranged coaxially with each other.

The case member 30 has a housing portion 36 for housing the first core 10 and the second core 20 , and a pair of outer wall portions 40 , 50 arranged to face each other with the first core 10 and the second core 20 interposed therebetween, and stand vertically.

In addition, metal terminal members 70 are respectively provided on the pair of outer wall portions 40 , 50 .

Regarding the first core 10, the entirety of the first core 10 is integrally formed of a magnetic material.

As shown in FIGS. 7 and 9 , the first connection portion 15 of the first core 10 is formed in a disk shape. One surface 16 ( FIG. 7 ) and the other surface 17 ( FIG. 9 ) of the first connecting portion 15 are each formed flat and parallel to each other. The plan view shape of the first connecting portion 15 is not particularly limited, and is, for example, an oblong shape, an elliptical shape, or a rounded rectangular shape (see FIG. 2 ).

The first shaft portions 11 and 12 are each formed in, for example, a long cylindrical shape, an elliptical cylindrical shape, or a rounded prism shape. The first shaft portions 11 and 12 respectively protrude from positions separated from each other on the other surface 17 of the first coupling portion 15 . The axial directions of the first shaft portions 11 and 12 are arranged parallel to each other, and are perpendicular to the plate surface of the first coupling portion 15 . The protruding lengths of the first shaft parts 11 and 12 from the other surface 17 (lengths in the axial direction of the first shaft parts 11 and 12 ) are equal to each other. In addition, as shown in FIG. 3 , the distance between one surface 16 and the other surface 17 of the first connecting portion 15 is formed smaller than the Y-direction width (short diameter of the ellipse) of the first shaft portions 11 and 12 . In addition, the extending direction of the major diameter of the first coupling portion 15 and the extending direction of the major diameters of the first shaft portions 11 and 12 are perpendicular to each other.

As shown in FIGS. 9 and 3 , the distal end surface 13 of one first shaft portion 11 and the distal end surface 14 of the other first shaft portion 12 are formed flat, for example, and arranged on the same plane as each other. The top end faces 13, 14 are perpendicular to the Z direction.

In the following description, the axial direction of the 1st shaft part 11,12 may be called an up-down direction or a Z direction.

One surface 16 of the first connecting portion 15 faces upward, and the other surface 17 faces downward. The first shaft parts 11 and 12 protrude downward from the first connecting part 15 .

The direction in which the first shaft portion 11 and the first shaft portion 12 are arranged may be referred to as the Y direction. The Z direction and the Y direction are orthogonal to each other.

In addition, the direction orthogonal to Z direction and Y direction is called X direction.

The second core 20 is formed of the same material as the first core 10 and has the same shape as the first core 10 . That is, the second core 20 has the same second connecting portion 25 as the first connecting portion 15 , the same second shaft portions 21 , 22 as the first shaft portions 11 , 12 , and the same distal end surfaces 23 , 24 as the distal surfaces 13 , 14 .

The second core 20 is arranged in a vertically inverted posture with respect to the first core 10 . That is, one surface 26 ( FIG. 9 ) of the second connection portion 25 faces downward, and the other surface 27 ( FIG. 7 ) of the second connection portion 25 faces upward. The second shaft portions 21 and 22 protrude upward from the other surface 27 .

As shown in FIG. 3 , the distal end surface 13 of the first shaft portion 11 and the distal end surface 23 of the second shaft portion 21 are in surface contact with each other, or approach each other in parallel.

Similarly, the distal end surface 14 of the other first shaft portion 12 and the distal end surface 24 of the other second shaft portion 22 are in surface contact with each other, or approach each other in parallel.

The tip surface 13 and the tip surface 23 are bonded and fixed to each other, for example, with an adhesive. Likewise, the distal end surface 14 and the distal end surface 24 are bonded and fixed to each other, for example, with an adhesive.

The plan view shape of the coil component 100 is not particularly limited, and may be, for example, a rectangular shape (for example, a square shape 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, for example, integrally formed in its entirety.

The case member 30 has: a flat upper surface 37; a front face 38 ( FIGS. 2 , 7 , 8 ), which is an outer surface in the Y direction of the case member 30 ;

The upper surface 37 is an outer surface of the case member 30 in the Z direction. The outline of the upper surface 37 is rectangular (for example, a square shape with rounded corners) ( FIG. 2 ).

The front surface 38 and the rear surface 39 are formed in a U-shape open downward, that is, an inverted U-shape. The front surface 38 and the rear surface 39 are arranged parallel to each other. The front 38 and the back 39 are respectively orthogonal to the upper surface 37 .

Furthermore, the case member 30 has a first outer surface 42 and a second outer surface 52 as a pair of outer surfaces in the X direction.

The first outer surface 42 is the outer surface of one outer wall portion 40 in the X direction, and the second outer surface 52 is the outer surface of the other outer wall portion 50 in the X direction.

The first outer surface 42 and the second outer surface 52 are arranged parallel to each other.

The first outer surface 42 and the second outer surface 52 are perpendicular to the front surface 38 and the rear surface 39 , and are also perpendicular to the upper surface 37 .

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

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

Here, as shown in FIGS. 7 and 8 , the case member 30 has a core holding portion 31 for holding the first coupling portion 15 (first opposing portion) of the first core 10 . A pair of outer wall parts 40 and 50 respectively protrude downward from the core holding part 31 .

Each of the outer wall portions 40 and 50 is formed, for example, in a substantially rectangular parallelepiped shape that is long in the Y direction.

The respective lower surfaces 43, 53 of the outer wall portions 40, 50 are preferably positioned below the top end surfaces 13, 14 of the first shaft portions 11, 12 of the first core 10, more preferably positioned below the lower end of the winding portion 63 (described later) of the coil 60, further preferably positioned below the lower end of the coil 60, and particularly preferably positioned below the side surface 26 of the second connecting portion 25 of the second 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 at the center portion of the core holding portion 31 .

The shape of the opening 32 is formed, for example, in a shape corresponding to the first connecting portion 15 and is formed slightly larger than the first connecting portion 15 ( FIG. 2 ).

Protrusions 33 protruding inwardly of the opening 32 are formed at a plurality of places on the inner peripheral surface of the opening 32 . For example, the protrusions 33 are respectively arranged at four corners of the opening 32 .

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

On the other hand, the protrusion amount of the protrusion 33 from the inner peripheral surface of the opening 32 increases downward.

More specifically, the protruding portion 33 has, for example, a triangular truncated prism shape, and its horizontal cross-sectional area increases downward.

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

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

That is, the first connecting portion 15 is fixed to the core holding portion 31 in a state where the outer peripheral surface 18 of the first connecting portion 15 is in press contact with one oblique side of each protruding portion 33 (see FIG. 5 ).

In this way, the first core 10 is supported by the case member 30 .

In addition, as described above, the second core 20 is adhesively fixed to the first core 10 . The second core 20 is indirectly supported by the case member 30 via the first core 10 .

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

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

In addition, the other surface 17 may be arranged flush with the lower surface of the core holding portion 31 , or may be arranged above the lower surface of the core holding portion 31 .

Here, inside the case member 30 , the space between the one outer wall portion 40 and the other outer wall portion 50 and the space in the opening 32 are the storage portions 36 for storing the first core 10 and the second core 20 .

As shown in FIG. 7 , the coil component 100 includes a first coil 61 and a second coil 62 as the coil 60 .

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

The first coil 61 has a winding portion 63 formed by helically winding a wire, and one end portion 64 and the other end portion 65 protruding from the winding portion 63 .

The one end portion 64 protrudes in a tangential direction from one end portion in the axial direction of the winding portion 63 . A portion of the first coil 61 on the other end 65 side protrudes in a tangential direction from the other end in the axial direction of the winding portion 63, and is folded back toward one end in the axial direction, and the other end 65 protrudes in a tangential direction from the one end in the axial direction. The protruding direction of the one end portion 64 from the wound portion 63 and the protruding direction of the other end portion 65 from the wound portion 63 are substantially opposite to each other. The one end portion 64 and the other end portion 65 are arranged substantially on the same straight line as each other. The one end portion 64 and the other end portion 65 each extend along the X direction.

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

In the case of this embodiment, as shown in FIGS. 7 and 9 , the first coil 61 and the second coil 62 are formed in symmetrical shapes (mirror symmetrical shapes) to each other in the Y direction.

Preferably, the wires constituting the first coil 61 and the second coil 62 are coated with a resin coating on their outer peripheral surfaces.

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

As shown in FIG. 3 , a first shaft portion 11 and a second shaft portion 21 pass through the winding portion 63 of the first coil 61 . Similarly, the other first shaft portion 12 and the other second shaft portion 22 penetrate the winding portion 63 of the second coil 62 .

That is, the coil component 100 includes, as the coil 60 , a first coil 61 wound around one shaft and a second coil 62 wound around the other shaft.

In addition, the case member 30 has a partition wall portion 34 (see FIGS. 3 , 6 , 7 , 8 , and 9 ) that separates the area where one shaft portion and the first coil 61 (the winding portion 63) is arranged and the area where the other shaft portion and the second coil 62 (the winding portion 63) are arranged.

In other words, the coil component 100 includes a first coil 61 wound on a first shaft portion 11 and a second shaft portion 21 and a second coil 62 wound on another first shaft portion 12 and another second shaft portion 22 as a coil 60. The partition wall part 34 (refer FIG. 3, FIG. 6, FIG. 7, FIG. 8, FIG. 9) separates the arrangement|positioning area|region of the coil 62 (the winding part 63) mutually.

The partition wall portion 34 spans 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 portion 34 is disposed below the core holding portion 31 , for example. 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 , the surface facing the arrangement area of the first shaft portion 11 , the second shaft portion 21 and the first coil 61 (the winding portion 63 ) is a concave curved surface 35 along the winding portion 63 of the first coil 61 .

Similarly, in the partition wall portion 34, the surface facing the arrangement area of the other first shaft portion 12, the other second shaft portion 22, and the second coil 62 (the winding portion 63) is a concave curved surface 35 along the winding portion 63 of the second coil 62.

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

The other surface 17 of the first connecting portion 15 of the first core 10 is parallel to the upper surface of the partition wall portion 34 and is in contact with or close to the upper surface (see FIG. 3 ).

The other surface 27 of the second connection portion 25 of the second core 20 is parallel to the lower surface of the partition wall portion 34 . The other surface 27 may also be in contact with the lower surface of the partition wall portion 34 or close to the lower surface of the partition wall portion 34. In the example of FIG.

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

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

The metal terminal member 71 and the metal terminal member 72 are arranged to line up in the Y direction, the metal terminal member 73 and the metal terminal member 74 are arranged to line up in the Y direction, the metal terminal member 71 and the metal terminal member 73 are arranged to line up in the X direction, and the metal terminal member 72 and the metal terminal member 74 are arranged to line up in the X direction.

One outer wall portion 40 of the pair of outer wall portions 40, 50 has a first opposing surface 41 facing the other outer wall portion 50 ( FIGS. 6 and 8 ). The other outer wall portion 50 has a second opposing surface 51 facing the side of the one outer wall portion 40 ( FIGS. 6 , 7 , and 9 ).

As shown in FIG. 6 , the metal terminal members 70 (metal terminal members 71 and 72 ) provided on one outer wall portion 40 are disposed as a whole at a position farther from the other outer wall portion 50 than the distance from the first opposing surface 41 to the other outer wall portion 50 (also refer to FIG. 9 ).

Similarly, as shown in FIGS. 6 and 9 , the entire metal terminal member 70 (metal terminal members 73, 74) provided on the other outer wall portion 50 is arranged at a position farther from the first outer wall portion 40 than the distance from the second opposing surface 51 to the first outer wall portion 40.

Thereby, a structure in which a part of the case member 30 is interposed between the metal terminal member 70 and the cores (first core 10, second core 20) can be realized, so that the pressure resistance between the terminals (each metal terminal member 70) and the cores (first core 10, second core 20) can be ensured more sufficiently.

As shown in FIGS. 6 and 9 , one end portion 64 of the coil 60 is held by a metal terminal member 70 provided on one outer wall portion 40 of the pair of outer wall portions 40 , 50 . That is, one end portion 64 of the first coil 61 is held by the metal terminal member 71 , and one end portion 64 of the second coil 62 is held by the metal terminal member 72 .

In addition, the other end portion 65 of the coil 60 is held by the metal terminal member 70 provided on the other outer wall portion 50 of the pair of outer wall portions 40 , 50 . That is, the other end portion 65 of the first coil 61 is held by the metal terminal member 73 , and the other end portion 65 of the second coil 62 is held by the metal terminal member 74 .

Thus, a structure in which the coil 60 is stretched between the pair of outer wall parts 40 and 50 is realized.

The coil 60 is in non-contact with the core. That is, the coil 60 is in a non-contact state with respect to any one of the first core 10 and the second core 20 . That is, the first coil 61 and the second coil 62 are in a non-contact state with respect to either of the first core 10 and the second core 20 , respectively.

Thereby, the voltage resistance between the coil 60 and the core (first core 10, second core 20) can be sufficiently ensured, and further, the voltage resistance between the terminal (metal terminal member 70) and the core (first core 10, second core 20) can be ensured more sufficiently.

As shown in FIG. 3 , there is a gap 81 between the outer peripheral surface of the first shaft portion 11 of the first core 10 , the outer peripheral surface of the second shaft portion 21 of the second core 20 , and the inner periphery of the winding portion 63 of the first coil 61 .

Similarly, a gap 81 exists between the outer peripheral surface of the other first shaft portion 12 of the first core 10 , the outer peripheral surface of the other second shaft portion 22 of the second core 20 , and the inner periphery of the winding portion 63 of the second 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 on the case member 30 , and the coil 60 is stretched between the metal terminal members 70 .

As shown in FIG. 8 , the metal terminal member 70 has: an insertion portion 75 inserted and fixed to the outer wall portions 40, 50; a coil end holding portion 76 (see FIG. 9 ) that holds the ends (one end portion 64 and the other end portion 65) of the coil 60 in a conduction state;

Therefore, the insertion portion 75 can be easily fixed to the outer wall portions 40, 50 by inserting and fixing the insertion portion 75, the coil end holding portion 76 can be used to hold the end portion of the coil 60 in a conductive state, 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, 53 of the outer wall portion 40, 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, for example, in a rectangular shape. 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 formed, for example, in a U-shape in which the tip side branches into two forks. The insertion portion 75 is bent, for example, at a right angle with respect to the terminal portion 77 , and stands upward from one side (hereinafter, referred to as a first side) of the terminal portion 77 .

The coil end holding portion 76 protrudes from the second side adjacent to the first side of the terminal portion 77 . The coil end holding portion 76 is bent into a curved shape (Ω-shaped) that protrudes upward. In addition, the portion on the distal end side in the protruding direction of the coil end holding portion 76 protruding from the terminal portion 77 is bifurcated, and the bending deformability of this portion is good.

In a state where the one end 64 or the other end 65 of the coil 60 is inserted into the curved portion of the coil end holding portion 76, the coil end holding portion 76 is pressed tightly, and the one end 64 or the other end 65 of the coil 60 is held by the coil end holding portion 76.

Among the parts of the metal terminal member 70, the terminal part 77 is located at the lowermost 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 each have an open end on the lower surface 43 . These insertion holes 49 are arranged side by side in the Y direction. The insertion hole 49 is formed such that the dimensions in the Y and Z directions are relatively large, and the dimensions in the X direction are relatively small. An insertion hole 49 is for inserting and fixing the insertion portion 75 of the metal terminal member 71 . The other insertion hole 49 is for inserting and fixing the 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 each have an open end on the lower surface 53 . These insertion holes 59 are arranged side by side in the Y direction. The insertion hole 59 is formed such that the dimensions in the Y and Z directions are relatively large, and the dimensions in the X direction are relatively small. An insertion hole 59 is for inserting and fixing the insertion portion 75 of the metal terminal member 73 . The other insertion hole 59 is for inserting and fixing 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 U-shaped insertion portion 75 , and the insertion portion 75 is press-fitted into 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 example of press-fitting the metal terminal member 70 into the case member 30, for example, various techniques such as an insert molding technique may be used to integrate the two.

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, for example, in a rectangular shape. The opposing portion 78 stands upward from a third side (a side adjacent to the second side) of the terminal portion 77 that faces the first side. Therefore, the opposing portion 78 faces the insertion portion 75 in parallel.

The facing portion 78 of the metal terminal member 71 and the facing portion 78 of the metal terminal member 72 are arranged on the first outer surface 42 of the outer wall portion 40 along a portion adjacent to the lower surface 43 . More specifically, a pair of shallow recesses 47 are formed on the first outer surface 42 adjacent to the lower surface 43 ( FIG. 7 ). A pair of recessed part 47 is arrange|positioned along with Y direction. One recess 47 accommodates the opposing portion 78 of the metal terminal member 71 , and the other recess 47 accommodates 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 arranged on the second outer surface 52 of the other outer wall portion 50 along a portion adjacent to the lower surface 53 . More specifically, a pair of shallow recesses 57 are formed on the second outer surface 52 adjacent to the lower surface 53 ( FIG. 8 ). A pair of recessed part 57 is arrange|positioned along with Y direction. One recess 57 accommodates the opposing portion 78 of the metal terminal member 73 , and the other recess 57 accommodates the opposing portion 78 of the metal terminal member 74 .

Here, in the terminal arrangement portion 45 , for example, a partition step portion 46 is formed in a range from the lower surface 43 to the first outer surface 42 . The partition step portion 46 is formed on the lower surface 43 so as to be one step higher downward than other portions. The partition step portion 46 is formed on the first outer surface 42 so as to be flush with the portion of the first outer surface 42 other than the concave portion 47 (that is, formed one level higher than the concave portion 47 ). The arrangement area of the metal terminal member 71 and the arrangement area of the metal terminal member 72 are separated from each other by the partition step portion 46 (see FIG. 9 ).

Similarly, in the terminal arrangement portion 55 , for example, a partition step portion 56 is formed in a range from the lower surface 53 to the second outer surface 52 . The partition step portion 56 is formed on the lower surface 53 so as to be one step higher downward than the other portions. The partition step portion 56 is formed on the second outer surface 52 so as to be flush with the portion of the second outer surface 52 other than the concave portion 57 (that is, formed one level higher than the concave portion 57 ). The arrangement area of the metal terminal member 73 and the arrangement area of the metal terminal member 74 are separated from each other by the partition step portion 56 .

An inclined surface 48 is formed between each concave portion 47 and the lower surface 43 . Similarly, inclined surfaces 58 are formed between the recesses 57 and the lower surface 53 .

Therefore, 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 recess 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 recess 57 .

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

On the lower surfaces 43 , 53 of the outer wall portions 40 , 50 are formed lower surface side concave portions 44 , 54 that are recessed toward the upper surface side of the outer wall portions 40 , 50 . The lower surface side recesses 44 , 54 accommodate the coil end holding portion 76 .

Therefore, when the coil component 100 is mounted on a board or the like, interference between the coil end holding portion 76 and the board 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 more reliably suppressed.

As shown in FIG. 8 , the outer wall portion 40 has a pair of lower surface side recesses 44 and a terminal arrangement portion 45 arranged between the lower surface side recesses 44 and in which terminal portions 77 (see FIG. 9 ) are arranged.

In a direction (Y direction shown in FIG. 9 ) parallel to the arrangement direction of the arrangement area of one shaft portion and the arrangement area of the other shaft portion, the lower surface side recessed portion 44 of the pair of lower surface side recessed portions 44, the terminal arrangement portion 45, and the other lower surface side recessed portion 44 of the pair of lower surface side recessed 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 area of the first shaft portion 11 and the second shaft portion 21 and the arrangement area of the other first shaft portion 12 and the other second shaft portion 22, the lower surface side recessed portion 44 of the pair of lower surface side recessed portions 44, the terminal arrangement portion 45, and the other lower surface side recessed portion 44 of the pair of lower surface side recessed portions 44 are arranged in this order.

Similarly, the outer wall portion 50 has a pair of lower surface side recesses 54 and a terminal arrangement portion 55 arranged between the lower surface side recesses 54 and in which a terminal portion 77 (see FIG. 9 ) is arranged.

In a direction (Y direction shown in FIG. 9 ) parallel to the arrangement direction of the arrangement area of one shaft portion and the arrangement area of the other shaft portion, the lower surface side recessed portion 54 of the pair of lower surface side recesses 54, the terminal arrangement portion 55, and the other lower surface side recessed portion 54 of the pair of lower surface side recesses 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 area of the first shaft portion 11 and the second shaft portion 21 and the arrangement area of the other first shaft portion 12 and the other second shaft portion 22, the lower surface side recessed portion 54 of the pair of lower surface side recessed portions 54, the terminal arrangement portion 55, and the other lower surface side recessed portion 54 of the pair of lower surface side recessed portions 54 are arranged in this order.

The lower surface side recess 44 accommodates the coil end holding portion 76 of the metal terminal member 71 , and the other lower surface side recess 44 accommodates the coil end holding portion 76 of the metal terminal member 72 .

The lower surface side recess 54 accommodates the coil end holding portion 76 of the metal terminal member 73 , and the other lower surface side recess 54 accommodates the coil end holding portion 76 of the metal terminal member 74 .

More specifically, in a direction (Y direction shown in FIG. 9 ) parallel to the arrangement direction of the arrangement area of the first shaft portion 11 and the second shaft portion 21 and the arrangement area of the other first shaft portion 12 and the other second shaft portion 22, a pair of lower surface side recesses 44 are arranged at the end of the outer wall portion 40. Further, each lower surface side recess 44 is open to the side opposite to the terminal arrangement portion 45 side in the Y direction, is also opened to the downward direction, and is also opened to both sides in the X direction perpendicular to the vertical direction and the Y direction.

Similarly, a pair of lower surface side recessed part 54 is arrange|positioned at the edge part of the other outer wall part 50 in a Y direction. Further, each lower surface side recess 54 is open to the side opposite to the terminal arrangement portion 55 side in the Y direction, is also opened to the downward direction, and is also opened to both sides in the X direction perpendicular to the vertical direction and the Y direction.

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

Each lower surface side concave portion 44 and each lower surface side concave portion 54 is, for example, a substantially rectangular parallelepiped concave portion.

In addition, the coil component 100 does not include a bobbin, and the winding portion 63 of the first coil 61 is wound around the first shaft portion 11 and the second shaft portion 21 in a non-contact state with respect to the first shaft portion 11 of the first core 10 and the second shaft portion 21 of the second core 20.

Assembly of the coil component 100 can be performed as follows, for example.

First, each metal terminal member 70 is attached to the case member 30 by inserting and press-fitting the insertion portion 75 of each metal terminal member 70 into the corresponding insertion hole 49 or 59 . In addition, the metal terminal member 70 may be attached to the case member 30 using an adhesive.

Next, as shown in FIG. That is, the one end 64 of the first coil 61 is pressed and fixed to the coil end holding portion 76 of the metal terminal member 71 , and the other end 65 of the first coil 61 is pressed and fixed to the coil end holding portion 76 of the metal terminal member 73 . In addition, one end 64 of the second coil 62 is pressed and fixed to the coil end holding portion 76 of the metal terminal member 72 , and the other end 65 of the second coil 62 is pressed and fixed to the coil end holding portion 76 of the metal terminal member 74 . The winding portion 63 of the first coil 61 and the winding portion 63 of the second coil 62 are arranged in the housing portion 36 , and the winding portion 63 of the first coil 61 and the winding portion 63 of the second coil 62 are separated from each other by the partition wall portion 34 .

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

In this way, the coil component 100 is obtained.

In addition, the coil component 100 may include a molded resin not shown.

＜Modifications＞

Next, the coil component 100 of a modification example is demonstrated using FIG.10(a) - FIG.11(b). The coil component 100 of this modified example is configured differently from the coil component 100 of the above-mentioned embodiment in the points described below, and is the same as the coil component 100 of the above-mentioned embodiment in other points.

As shown in (a) of FIG. 10 and (a) of FIG. 11 , in the case of this modified example, a pair of protrusions 91 (protrusions) are formed on the inner peripheral surface of the opening 32 of the case member 30 in addition to the four-cornered protrusions 33 . That is, the case member 30 has a pair of protrusions 91 . These protrusions 91 are arranged at the center of the opening 32 in the Y direction. One protrusion 91 protrudes from the inner peripheral surface of the opening 32 in one direction in the X direction, and the other protrusion 91 protrudes from the inner peripheral surface of the opening 32 in the opposite direction in the X direction.

The protrusion 91 has a substantially triangular shape in plan view, and its width gradually becomes narrower toward the tip side (inner side of the opening 32 ) in the protrusion direction of the protrusion 91 . The top of the protrusion 91 (the tip portion in the protruding direction of the protrusion 91 ) has a rounded shape.

The upper surface of the protruding portion 91 is, for example, a flat horizontal surface flush with the upper surface 37 of the case member 30 . The protruding portion 91 is arranged on the upper surface of the partition wall portion 34 . The lower end of the protrusion portion 91 reaches the upper surface of the partition wall portion 34 .

A pair of recesses 19 corresponding to the protrusions 91 are formed on the outer peripheral surface 18 (side peripheral surface) of the first connecting portion 15 of the first core 10 . The recesses 19 are arranged at positions corresponding to the protrusions 91 .

Each recess 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 first connecting portion 15 . That is, each concave portion 19 has a substantially triangular shape in plan view, gradually narrows in width as it goes in the depth direction, and has a rounded shape at the innermost portion.

And, as shown in FIG. 10( a), in a state where the first connecting portion 15 of the first core 10 is held by the core holding portion 31 of the case member 30, one protrusion 91 enters one recess 19, and the other protrusion 91 enters the other recess 19. That is, the protrusion 91 fits into the recess 19 . Thereby, the displacement of the first core 10 with respect to the case member 30 can be suppressed.

As shown in FIG. 10( b ) and FIG. 11( b ), protrusions 92 (convex portions) are formed on the first facing surface 41 of one outer wall portion 40 and the second facing surface 51 of the other outer wall portion 50 . That is, the case member 30 has a pair of protrusions 92 .

One protrusion 92 protrudes in one direction (the second opposing surface 51 side) in the X direction from the central portion in the Y direction of the first opposing surface 41 . The other protruding portion 92 protrudes from the central portion of the second opposing surface 51 in the Y direction to the opposite direction in the X direction (the first opposing surface 41 side).

The shape of the protrusion 92 is the same as that of the protrusion 91 . That is, the planar view shape of the protrusion part 92 is a substantially triangular shape, and the width gradually becomes narrower toward the front end side in the protrusion direction of the protrusion part 92 . The top of the protrusion 92 (the tip portion in the protruding direction of the protrusion 92 ) has a rounded shape.

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

A pair of recesses 29 corresponding to the protrusions 92 are formed on the outer peripheral surface 28 (side peripheral surface) of the second coupling portion 25 of the second core 20 . The recesses 29 are arranged at positions corresponding to the respective protrusions 92 .

The shape of the recessed portion 29 is the same as that of the recessed portion 19 . That is, each concave portion 29 has a shape corresponding to each protrusion portion 92 , and is formed in a range from the upper end to the lower end of the second connection portion 25 . That is, each concave portion 29 has a substantially triangular shape in plan view, gradually narrows in width as it goes in the depth direction, and has a rounded shape at the innermost portion.

And, in the state where the second core 20 is fixed to the first core 10 , as shown in FIG. 10( b ), one protrusion 92 enters one recess 29 and the other protrusion 92 enters the other recess 29 . That is, the protrusion 92 fits into the recess 29 . Thereby, the displacement of the second core 20 with respect to the case member 30 can be suppressed.

In addition, in this modified example, the example in which the recesses 19 and the recesses 29 are respectively formed in the first connection part 15 and the second connection part 25 and the protrusions 91 and 92 are formed in the case member 30 to fit the recesses 19 and 29 is described.

In this way, as the coil component 100, a coil component having a structure in which a concave portion or a convex portion formed on the first facing portion (first connecting portion 15) fits into a convex portion or a concave portion formed on the case member 30, and a concave portion or a convex portion formed on the second facing portion (second connecting portion 25) fits into a convex portion or a concave portion formed on the case member 30 can be used.

As mentioned above, although embodiment and modification were described with reference to drawings, the above-mentioned embodiment and modification are illustrations of this invention, and various structures other than the above can also be employ|adopted.

For example, in the above-mentioned embodiments and modified examples, an example in which the first core 10 and the second core 20 are respectively U-shaped cores has been described, but one of the first core 10 and the second core 20 (for example, the second core 20) may be an I-shaped core such as a plate. In this case, one shaft portion is constituted by the first shaft portion 11 of the first core 10 , and the other shaft portion is constituted by the first shaft portion 12 of the first core 10 . In addition, the second core 20 does not constitute a shaft portion.

This embodiment includes the following technical ideas.

<1> A coil component, wherein,

The coil assembly includes:

a core having a pair of shafts arranged in parallel to each other, a first facing part straddled between one ends of the pair of shafts, and a second facing part straddled between the other ends of the pair of shafts;

a housing member constructed of an insulating material and supporting the core;

a coil wound around the pair of shaft portions; and

a metal terminal member electrically connected to the coil,

The first opposing portion and the second opposing portion are arranged to face each other with the pair of shaft portions sandwiched therebetween,

The housing member has:

a housing portion for housing the core; and

A pair of outer wall parts are arranged to face each other with the core part in between, and stand vertically respectively,

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

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

One of the pair of outer wall parts has a first opposite surface facing the side of the other outer wall part,

The other outer wall portion has a second opposite surface facing the side of the one outer wall portion,

The entirety of the metal terminal member provided on the one outer wall portion is disposed at a position farther from the other outer wall portion than the distance from the first opposing surface to the other outer wall portion,

The entirety of the metal terminal member provided on the other outer wall portion is arranged at a position farther from the one outer wall portion than a distance from the second opposing surface to the first 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 on one of the pair of outer wall portions,

The other end portion of the coil is held by the metal terminal member provided on the other outer wall portion 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 the 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 case member.

<6> The coil component according to any one of <1> to <5>, wherein

The metal terminal member has:

an insertion part, which is inserted and fixed on the outer wall part;

a coil end holding portion that holds the end of the coil in a conduction state; and

The terminal portion is disposed on the lower surface of the outer wall portion.

<7> The coil component according to <6>, wherein,

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

The lower surface side concave portion is arranged for the coil end holding portion.

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

The outer wall part has: a pair of lower surface side recesses; and a terminal arrangement part arranged between the lower surface side recesses and in which the terminal part is arranged,

In a direction parallel to the arrangement direction of the arrangement area of one of the shaft portions and the arrangement area of the other shaft portion, the lower surface side recess 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.

<9> The coil component according to any one of <1> to <8>, wherein

The case member has a core holding portion for holding the first opposing portion,

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

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

The first opposing 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 coil, a first coil wound on one of the shafts and a second coil wound on the other shaft,

The case member further includes a partition wall portion that partitions an area where the one shaft portion and the first coil are arranged, and an area where the other shaft portion and the second coil are arranged from each other.

<12> The coil component according to any one of <1> to <11>, wherein

The concave portion or convex portion formed on the first opposing portion fits into the convex portion or concave portion formed on the housing member,

And the concave part or the convex part formed in the said 2nd opposing part is fitted with the convex part or the concave part formed in the said case member.

<13> The coil component according to any one of <1> to <12>, wherein

The core comprises:

a first core having the first opposing portion and a pair of first shaft portions arranged in parallel with each other; and

a second core having the second opposing portion and a pair of second shaft portions arranged in parallel with each other,

The first opposing portion connects the pair of first shaft portions to each other,

The second opposing portion connects the pair of second shaft portions to each other,

A first shaft part of the pair of first shaft parts and a second shaft part of the pair of second shaft parts are arranged coaxially with each other to constitute a shaft part,

The other first shaft part of the pair of first shaft parts and the other second shaft part of the pair of second shaft parts are arranged coaxially with each other to constitute the other shaft part.

Furthermore, this embodiment includes the following technical ideas.

(1) A coil component in which,

The coil assembly includes:

a first core having a pair of first shaft portions arranged in parallel with each other and a first connecting portion connecting the pair of first shaft portions to each other;

a second core having a pair of second shafts arranged in parallel with each other and a second connection part connecting the pair of second shafts to each other;

a housing member made of an insulating material and supporting the first core and the second core;

a coil wound around the first shaft portion and the second shaft portion; and

a metal terminal member electrically connected to the coil,

The first connecting portion and the second connecting portion are arranged to face each other with the pair of first shaft portions and the pair of second shaft portions sandwiched therebetween,

A first shaft part of the pair of first shaft parts and a second shaft part of the pair of second shaft parts are arranged coaxially with each other,

The other first shaft part of the pair of first shaft parts and the other second shaft part of the pair of second shaft parts are arranged coaxially with each other,

The housing member has:

a housing part for housing the first core and the second core; and

a pair of outer wall parts, which are arranged to face each other with the first core and the second core sandwiched therebetween, and stand vertically respectively,

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

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

One of the pair of outer wall parts has a first opposite surface facing the side of the other outer wall part,

The other outer wall portion has a second opposite surface facing the side of the one outer wall portion,

The entirety of the metal terminal member provided on the one outer wall portion is disposed at a position farther from the other outer wall portion than the distance from the first opposing surface to the other outer wall portion,

The entirety of the metal terminal member provided on the other outer wall portion is arranged at a position farther from the one outer wall portion than a distance from the second opposing surface to the first 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 on one of the pair of outer wall portions,

The other end portion of the coil is held by the metal terminal member provided on the other outer wall portion 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 either the first core or the second 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 case member.

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

The metal terminal member has:

an insertion part, which is inserted and fixed on the outer wall part;

a coil end holding portion that holds the end of the coil in a conduction state; and

The terminal portion is disposed on the lower surface of the outer wall portion.

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

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

The lower surface side concave portion is arranged for the coil end holding portion.

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

The outer wall part has: a pair of lower surface side recesses; and a terminal arrangement part arranged between the lower surface side recesses and in which the terminal part is arranged,

In a direction parallel to the arrangement direction of the arrangement area of the one first shaft portion and the one second shaft portion and the arrangement area of the other first shaft portion and the other second shaft portion, the lower surface side recessed portion of the pair of lower surface side recessed portions, the terminal arrangement portion, and the other lower surface side recessed portion of the pair of lower surface side recessed 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 first connecting portion of the first core,

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

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

The first 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 coil, a first coil wound around the one first shaft portion and the one second shaft portion and a second coil wound around the other first shaft portion and the other second shaft portion,

The housing member further includes a partition wall separating an area where the first shaft, the second shaft, and the first coil are arranged, and an area where the other first shaft, the second shaft, and the second coil are arranged.

Claims (12)

1. A coil component, wherein, The coil assembly includes: a core having a pair of shafts arranged in parallel to each other, a first facing part straddled between one ends of the pair of shafts, and a second facing part straddled between the other ends of the pair of shafts; a housing member constructed of an insulating material and supporting the core; a coil wound around the pair of shaft portions; and a metal terminal member electrically connected to the coil, The first opposing portion and the second opposing portion are arranged to face each other with the pair of shaft portions sandwiched therebetween, The housing member has: a housing portion for housing the core; and A pair of outer wall parts are arranged to face each other with the core part in between, and stand vertically respectively, The metal terminal members are respectively provided on the pair of outer wall parts, said coil part does not have a bobbin, The coil is in a non-contact state with respect to the core. 2. The coil component according to claim 1, wherein, One of the pair of outer wall parts has a first opposite surface facing the side of the other outer wall part, The other outer wall portion has a second opposite surface facing the side of the one outer wall portion, The entirety of the metal terminal member provided on the one outer wall portion is disposed at a position farther from the other outer wall portion than the distance from the first opposing surface to the other outer wall portion, The entirety of the metal terminal member provided on the other outer wall portion is arranged at a position farther from the one outer wall portion than a distance from the second facing surface to the first 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 on one of the pair of outer wall portions, The other end portion of the coil is held by the metal terminal member provided on the other outer wall portion 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 case member. 5. The coil component according to claim 1 or 2, wherein, The metal terminal member has: an insertion part, which is inserted and fixed on the outer wall part; a coil end holding portion that holds the end of the coil in a conduction state; and The terminal portion is disposed on the lower surface of the outer wall portion. 6. The coil component according to claim 5, wherein, On the lower surface of the outer wall portion, a lower surface side concave portion that is recessed toward the upper surface side of the outer wall portion is formed, The lower surface side concave portion is arranged for the coil end holding portion. 7. The coil component according to claim 6, wherein, The outer wall part has: a pair of lower surface side recesses; and a terminal arrangement part arranged between the lower surface side recesses and in which the terminal part is arranged, In a direction parallel to the arrangement direction of the arrangement area of the one shaft portion and the arrangement area of the other shaft portion, the lower surface side recessed portion of the pair of lower surface side recessed portions, the terminal arrangement portion, and the other lower surface side recessed portion of the pair of lower surface side recessed portions are arranged in sequence. 8. The coil component according to claim 1 or 2, wherein, The case member has a core holding portion for holding the first opposing portion, The pair of outer wall portions respectively protrude downward from the core holding portion. 9. The coil component according to claim 8, wherein, The first 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, as the coil, a first coil wound on one of the shafts and a second coil wound on the other shaft, The case member further includes a partition wall portion that partitions an area where the shaft portion and the first coil are arranged and an area where the other shaft portion and the second coil are arranged. 11. The coil component according to claim 1 or 2, wherein, The concave portion or convex portion formed on the first opposing portion fits into the convex portion or concave portion formed on the housing member, And the concave part or the convex part formed in the said 2nd opposing part is fitted with the convex part or the concave part formed in the said case member. 12. The coil component according to claim 1 or 2, wherein, The core comprises: a first core having the first opposing portion and a pair of first shaft portions arranged in parallel with each other; and a second core having the second opposing portion and a pair of second shaft portions arranged in parallel with each other, The first opposing portion connects the pair of first shaft portions to each other, The second opposing portion connects the pair of second shaft portions to each other, A first shaft part of the pair of first shaft parts and a second shaft part of the pair of second shaft parts are arranged coaxially with each other to constitute a shaft part, The other first shaft part of the pair of first shaft parts and the other second shaft part of the pair of second shaft parts are arranged coaxially with each other to constitute the other shaft part.