Coil component and metal plate

Abstract

A coil component (1) is configured such that one end side of a first coil conductor (121) and one end side of a second coil conductor (122) are connected by a connection portion (123). The first coil conductor (121) and the second coil conductor (122) are provided symmetrically with the connection portion (123) interposed therebetween. A first terminal portion (124) is provided on the other end side of the first coil conductor (121). A second terminal portion (125) is provided on the other end side of the second coil conductor (122). In a state in which the position of the first terminal portion (124) and the position of the second terminal portion (125) are immobilized, a first opening (126) and a second opening (127) are bent so as to overlap. The angle formed by the first coil conductor (121) and the connection portion (123) and the angle formed by the second coil conductor (122) and the connection portion (123) are substantially the same.

Description

Coil components and metal plates

[0001] The present disclosure relates to a coil component and a metal plate.

[0002] Various structures have been proposed for coil components. For example, Japanese Patent Laid-Open Publication No. 2004-296630 (Patent Document 1) discloses a coil component in which a metal plate is bent into a coil shape. Specifically, Patent Document 1 discloses a terminal-integrated coil formed by bending a punched flat plate that includes three arc-shaped coil portions cut into ring shapes from a metal plate and two terminals extending from the coil portions.

[0003] Japanese Patent Application Laid-Open No. 2004-296630

[0004] However, the coil component disclosed in Patent Document 1 is configured such that the positional relationship between the two terminals on the punched flat plate and the positional relationship after the punched flat plate is bent changes. Therefore, the coil component disclosed in Patent Document 1 is a product in which multiple coil components are connected together on a metal plate, that is, multiple coil components cannot be treated as a single product, and each coil component must be treated as a single product.

[0005] As described above, the coil component disclosed in Patent Document 1 had to be handled as a single product, which made it difficult to improve productivity.

[0006] An object of the present disclosure is to improve productivity in manufacturing coils.

[0007] A coil component according to one embodiment of the present disclosure comprises a first coil conductor having a first opening, a second coil conductor having a second opening, a connecting portion connecting one end side of the first coil conductor and one end side of the second coil conductor, a first terminal portion provided on the other end side of the first coil conductor, and a second terminal portion provided on the other end side of the second coil conductor, wherein the first coil conductor and the second coil conductor are arranged symmetrically via the connecting portion, and the first opening and the second opening are bent so as to overlap with the positions of the first terminal portion and the second terminal portion fixed, and the angle formed between the first coil conductor and the connecting portion and the angle formed between the second coil conductor and the connecting portion are approximately the same.

[0008] A metal plate according to one embodiment of the present disclosure comprises a first coil conductor having a first opening, a second coil conductor having a second opening, a connecting portion connecting one end side of the first coil conductor to one end side of the second coil conductor, a first terminal portion provided on the other end side of the first coil conductor, and a second terminal portion provided on the other end side of the second coil conductor, and the first coil conductor and the second coil conductor are arranged via the connecting portion so that the maximum distance between the first opening and the connecting portion is approximately the same as the maximum distance between the second opening and the connecting portion.

[0009] According to a coil component according to one embodiment of the present disclosure, one end of a first coil conductor and one end of a second coil conductor are arranged symmetrically with a connecting portion interposed therebetween. A first terminal portion is provided at the other end of the first coil conductor, and a second terminal portion is provided at the other end of the second coil conductor. With the positions of the first terminal portion and the second terminal portion fixed, the coil component is bent so that the first opening and the second opening overlap, and the angle between the first coil conductor and the connecting portion and the angle between the second coil conductor and the connecting portion are substantially the same. This allows a product in which multiple coil components are connected together on a metal plate, i.e., the multiple coil components, to be treated as a single product, thereby improving productivity in coil manufacturing.

[0010] According to a metal plate according to one embodiment of the present disclosure, one end of a first coil conductor and one end of a second coil conductor are arranged via a connecting portion such that the maximum distance between the first opening and the connecting portion is approximately the same as the maximum distance between the second opening and the connecting portion. A first terminal portion is provided at the other end of the first coil conductor, and a second terminal portion is provided at the other end of the second coil conductor. With such a metal plate, a coil component can be formed by bending the metal plate so that the first opening and the second opening overlap while the positions of the first terminal portion and the second terminal portion are fixed. This allows the metal plate to be used in a product in which multiple coil components are connected together while the positions of the first terminal portion and the second terminal portion are fixed, i.e., multiple coil conductors can be treated as a single product, thereby improving productivity in coil manufacturing.

[0011] Fig. 1 is a perspective view of a coil device that is a final product of a coil component according to embodiment 1. Fig. 2 is a perspective view of a metal plate that constitutes a coil component and a lead frame of the coil component according to embodiment 1. Fig. 3 is a perspective view of a coil component and a metal plate that constitutes a lead frame of the coil component according to embodiment 2. Fig. 4 is a perspective view of a coil component and a metal plate that constitutes a lead frame of the coil component according to embodiment 3. Fig. 5 is a perspective view of a coil component and a metal plate that constitutes a lead frame of the coil component according to embodiment 4. Fig. 6 is a perspective view of a coil component and a metal plate that constitutes a lead frame of the coil component according to embodiment 5.

[0012] Hereinafter, coil components according to the present embodiment will be described with reference to the drawings. While multiple embodiments will be described below, it was originally intended that the configurations described in the respective embodiments be combined as appropriate. Note that identical or corresponding parts in the drawings will be designated by the same reference numerals, and their description will not be repeated.

[0013] First Embodiment First, a coil component 1 and a metal plate 10 according to a first embodiment will be described with reference to Fig. 1 and Fig. 2. Fig. 1 is a perspective view of a coil device 100 that is a final product of the coil component 1 according to the first embodiment.

[0014] 1 shows a see-through state of a first coil conductor 121 and a second coil conductor 122 of a coil component 1 arranged inside a housing 2 of a coil device 100. The coil component 1 includes the first coil conductor 121, the second coil conductor 122, a connecting portion 123, a first terminal portion 124, and a second terminal portion 125. Note that the coil component 1 may include a housing 2 in addition to the first coil conductor 121, the second coil conductor 122, the connecting portion 123, the first terminal portion 124, and the second terminal portion 125.

[0015] The housing 2 fixes the relative positions of the first coil conductor 121 and the second coil conductor 122. The housing 2 is formed into a rectangular prism shape by molding, for example, a light-transmitting resin. The molding is an insulating resin. The housing 2 may be formed of a non-light-transmitting resin layer. Furthermore, the housing 2 may be formed using insulating paint. The molding material may be selected depending on the application of the coil component. Specifically, the molding of the housing 2 includes at least one of, for example, an epoxy resin with added silica filler, a silicone resin, a liquid crystal polymer, and various resins mixed with a metal magnetic material. The interior of the housing 2 may be formed of multiple types of resin.

[0016] The housing 2 is a structure surrounded by a first main surface 2A (the upper surface in the figure) and a second main surface 2B (the lower surface in the figure) arranged opposite each other, and a first side surface 21, a second side surface 22, a third side surface 23, and a fourth side surface 24 that surround the sides.

[0017] The first coil conductor 121 has a substantially rectangular shape when viewed from the direction of the first main surface 2A of the housing 2, and has a first opening 126. The first coil conductor 121 is disposed inside the housing 2 parallel to the first main surface 2A.

[0018] The second coil conductor 122 has a substantially rectangular shape when viewed from the direction of the first main surface 2A of the housing 2, and has a second opening 127. The first coil conductor 121 and the second coil conductor 122 have similar shapes when viewed in their respective thickness directions. This makes it easy to form a coil component 1 using the first coil conductor 121 and the second coil conductor 122. The second coil conductor 122 is arranged parallel to the first main surface 2A inside the housing 2. The phrase "the first coil conductor 121 and the second coil conductor 122 are parallel to the first main surface 2A" refers to the first coil conductor 121 and the second coil conductor 122 being approximately parallel to the first main surface 2A, and may include an angle of up to approximately ±5 degrees between the surfaces forming the respective coil conductors.

[0019] The second coil conductor 122 is disposed above the first coil conductor 121 so that the second opening 127 of the second coil conductor 122 overlaps with the first opening 126 of the first coil conductor 121. The first coil conductor 121 and the second coil conductor 122 are disposed at a fixed interval in the vertical direction.

[0020] The first coil conductor 121 and the second coil conductor 122 are connected by a connecting portion 123 provided between one end of the first coil conductor 121 and one end of the second coil conductor 122. In other words, one end of the first coil conductor 121 is connected to the connecting portion 123. Note that a portion of the connecting portion 123 may form an opening of the coil conductor, such as a first opening 126 of the first coil conductor 121 and a second opening 127 of the second coil conductor 122.

[0021] A first terminal 124 is provided on the other end of the first coil conductor 121. A second terminal 125 is provided on the other end of the second coil conductor 122. The first terminal 124 includes a first connection portion 124a and a first lead portion 124b. The second terminal 125 includes a second connection portion 125a and a second lead portion 125b.

[0022] The first connecting portion 124a is a portion connected to the other end of the first coil conductor 121. The first connecting portion 124a has the same width as the first coil conductor 121. The first leading portion 124b is a portion connected to the first connecting portion 124a and leading out of the housing 2. For example, the first leading portion 124b is led out from the first side surface 21 of the housing 2, bent along the first side surface 21, and extended in the direction of the second main surface 2B. Furthermore, the first leading portion 124b is bent at an angle of approximately 90 degrees at the boundary between the first side surface 21 of the housing 2 and the second main surface 2B of the housing 2. This angle of approximately 90 degrees is in the range of 85 degrees to 95 degrees. The first bent portion 124b1, which is the bent portion of the first leading portion 124b, extends so as to follow a portion of the second main surface 2B. The first lead portion 124 b has the same width as the width of the first side surface 21 .

[0023] The second connection portion 125a is a portion connected to the other end of the second coil conductor 122. The second connection portion 125a has the same width as the second coil conductor 122. The second lead portion 125b is a portion connected to the second connection portion 125a and led out of the housing 2. For example, the second lead portion 125b is led out from the second side surface 22 of the housing 2, bent along the second side surface 22, and extended in the direction of the second main surface 2B. Furthermore, the second lead portion 125b is bent at an angle of approximately 90 degrees at the boundary between the second side surface 22 of the housing 2 and the second main surface 2B of the housing 2. This angle of approximately 90 degrees is in the range of 85 degrees to 95 degrees. The second bent portion 125b1, which is the bent portion of the second lead portion 125b, extends along a portion of the second main surface 2B. The second lead portion 125 b has the same width as the width of the second side surface 22 .

[0024] The first coil conductor 121, the second coil conductor 122, the first bent portion 124b1, and the second bent portion 125b1 are arranged parallel to each other inside the housing 2. Note that the first coil conductor 121, the second coil conductor 122, the first bent portion 124b1, and the second bent portion 125b1 may be arranged substantially parallel to each other. "Substantially parallel" means that the angle between the first coil conductor 121, the second coil conductor 122, the first bent portion 124b1, and the second bent portion 125b1 is within the range of -15 degrees to +15 degrees when any one of the first coil conductor 121, the second coil conductor 122, the first bent portion 124b1, and the second bent portion 125b1 is used as a reference.

[0025] 2 is a perspective view of the coil component 1 according to embodiment 1 and a metal plate 10 constituting the lead frame 11 of the coil component 1. The metal plate 10 is a conductive thin plate that is subjected to processes such as punching and bending to form the lead frame 11 of the coil component 1. The metal plate 10 has two surfaces, a first surface 101 and a second surface 102, that face each other in the thickness direction of the metal plate 10. FIG. 2 shows the configuration of the metal plate 10 as viewed from the first surface 101 side.

[0026] The metal plate 10 is a hoop material made of a strip of metal. In Fig. 2, the configuration of a portion of the entire length of the metal plate 10 is shown.

[0027] FIG. 2 shows the lead frame 11 in a state after punching and before bending, and the coil component 1 after punching and after bending, in a state that allows comparison.

[0028] In the metal plate 10, a hoop material made of a strip of metal is first punched to form a plurality of lead frames 11 at predetermined intervals. As a result, at the stage after punching, the metal plate 10 is provided with a plurality of lead frames 11 in a state before bending.

[0029] After the metal plate 10 is punched, each lead frame 11 is bent, for example, along an axis 5 indicated by a dashed line in the figure, to form each lead frame 11 into a coil component 1. In this way, a plurality of coil components 1 are provided on the metal plate 10 at predetermined intervals.

[0030] In FIG. 2, the lead frame 11 and the coil component 1 are shown on one drawing so that the difference in configuration between the lead frame 11 before bending and the coil component 1 after bending can be compared.

[0031] The lead frame 11 includes a first coil conductor 121 , a second coil conductor 122 , a connecting portion 123 , a first terminal portion 124 , and a second terminal portion 125 obtained by punching a metal plate 10 .

[0032] In the lead frame 11 , the first coil conductor 121 , the second coil conductor 122 , the connecting portion 123 , the first terminal portion 124 , and the second terminal portion 125 are integrally provided on the same plane of the metal plate 10 .

[0033] In the lead frame 11, the first coil conductor 121 and the second coil conductor 122 are arranged in a point-symmetrical shape with the center point of the connecting portion 123 as the center of symmetry. In this way, the first coil conductor 121 and the second coil conductor 122 are arranged symmetrically with respect to the connecting portion 123. More specifically, the first coil conductor 121 and the second coil conductor 122 are arranged via the connecting portion 123, and are arranged such that the distance between the first opening 126 and the connecting portion 123 and the distance between the second opening 127 and the connecting portion 123 are approximately the same. In this case, "approximately the same distance" refers to a distance between the second opening 127 and the connecting portion 123 that is within a range of 95% to 105% of the distance between the first opening 126 and the connecting portion 123. The first terminal portion 124 and the second terminal portion 125 are arranged such that the first coil conductor 121 is sandwiched therebetween.

[0034] The coil component 1 is obtained by bending the second coil conductor 122 at an angle of 180 degrees from above the connecting portion 123 along the axis 5 shown by the dashed line in the drawing, so that the second opening 127 of the second coil conductor 122 overlaps with the first opening 126 of the first coil conductor 121 in the lead frame 11. In this manner, the coil component 1 is formed by bending the second coil conductor 122, which is one of the first and second coil conductors 121 and 122.

[0035] Note that the bending process for bending the first coil conductor 121 at an angle of 180 degrees relative to the connecting portion 123a may be performed at an angle of approximately 180 degrees. This angle of approximately 180 degrees is within the range of 175 degrees to 185 degrees. Also, the bending process for bending the second coil conductor 122 at an angle of 180 degrees relative to the connecting portion 123a may be performed at an angle of approximately 180 degrees. This angle of approximately 180 degrees is within the range of 175 degrees to 185 degrees.

[0036] By performing this bending process, the coil component 1 takes on a shape similar to that shown in Figure 1, in which the second coil conductor 122 is positioned above the first coil conductor 121 and is spaced a certain distance apart from the first coil conductor 121.

[0037] In the coil component 1 that has been bent as described above, the angle (e.g., 0 degrees) between the first coil conductor 121 and the connecting portion 123 is the same as the angle (e.g., 0 degrees) between the second coil conductor 122 and the connecting portion 123. Note that the angle between the first coil conductor 121 and the connecting portion 123 and the angle between the second coil conductor 122 and the connecting portion 123 may be approximately the same as long as the angle is within the range of -5 degrees to +5 degrees.

[0038] When the coil device 100 shown in FIG. 1 is configured using the coil component 1 shown in FIG. 2, the first terminal portion 124 and the second terminal portion 125 are cut off from the metal plate 10.

[0039] The coil component 1 shown in Fig. 2 is not separated from the metal plate 10. The coil component 1 shown in Fig. 2 is not in a state in which the first terminal portion 124 is bent at the first connection portion 124a and the first lead portion 124b. Similarly, the coil component 1 shown in Fig. 2 is not in a state in which the second terminal portion 125 is bent at the second connection portion 125a and the second lead portion 125b.

[0040] The bending process described above is performed on each of the plurality of lead frames 11 provided on the metal plate 10 as described above. As a result, the metal plate 10 after the bending process has a shape in which a plurality of coil components 1 after the bending process are provided at predetermined intervals.

[0041] For example, the terminal portions and the connecting portions may be defined as follows: In the first embodiment, terminal portions such as the first terminal portion 124 and the second terminal portion 125 shown in Fig. 1 and Fig. 2 can be defined as portions that become the axis of bending when the first coil conductor 121 and the second coil conductor 122 are bent so as to overlap, as shown in the coil component 1 after bending processing in Fig. 2. In other words, portions that do not face other portions in such a bent state can be defined as terminal portions such as the first terminal portion 124 and the second terminal portion 125.

[0042] Furthermore, in embodiment 1, terminal portions such as the first terminal portion 124 and the second terminal portion 125 shown in Figures 1 and 2 are basically regions that extend in a direction approximately perpendicular (e.g., the longitudinal direction of each of the first connection portion 124a and the second connection portion 125a after bending) to the direction in which the center of the first opening 126 in the first coil conductor 121 and the center of the second opening 127 in the second coil conductor 122 are aligned (e.g., the same direction as the width direction of each of the first connection portion 124a and the second connection portion 125a before bending), as shown in the lead frame 11 before bending in Figure 2.

[0043] In addition, terminal portions such as the first terminal portion 124 and the second terminal portion 125 may include a region extending in approximately the same direction as the direction in which the center of the first opening 126 in the first coil conductor 121 and the center of the second opening 127 in the second coil conductor 122 are aligned, such as the first lead portion 124b and the second lead portion 125b shown in Figure 2.

[0044] Furthermore, the connecting portion 123 can be defined by the positional relationship with terminal portions such as the first terminal portion 124 and the second terminal portion 125. Specifically, as shown in the coil component 1 after bending in Fig. 2 , the connecting portion 123 includes not only a portion of the metal plate 10 that is disposed between a plurality of terminal portions such as the first terminal portion 124 and the second terminal portion 125, but also a portion that is continuous with the portion disposed between the plurality of terminal portions and extends in approximately the same direction as the direction in which the center of the first opening 126 in the first coil conductor 121 and the center of the second opening 127 in the second coil conductor 122 are aligned.

[0045] 2 , where a first virtual line 201 is a virtual line that passes through the first terminal 124 and is drawn in a direction parallel to the direction in which the first connecting portion 124a of the first terminal 124 extends, and a second virtual line 202 is a virtual line that passes through the second terminal 125 and is drawn in a direction parallel to the direction in which the second connecting portion 125a of the second terminal 125 extends, the above-mentioned "between the terminals" refers to the region of the coupling portion 123 that is located between the first virtual line 201 and the second virtual line 202. Note that with regard to such "between the terminals," the positions at which the virtual lines pass through the multiple terminals are determined to be positions at which the distance between the first virtual line 201 and the second virtual line 202 is maximum in the portion connecting the first coil conductor 121 and the second coil conductor 122.

[0046] 2 , the range of the connecting portion 123 can be determined as follows based on the definition of the connecting portion 123 as described above. Specifically, as shown in FIG. 2 , a first virtual line 201 and a second virtual line 202 can be drawn at one end of the first connecting portion 124 a of the first terminal 124 in the short direction (width direction of the first connecting portion 124 a) and at the other end of the second connecting portion 125 a of the second terminal 125 in the short direction (width direction of the second connecting portion 125 a), respectively, so that the distance between the two virtual lines, the first virtual line 201 and the second virtual line 202, is maximized, thereby determining the region "between the terminal portions."

[0047] 2, metal plate 10 is disposed between first terminal 124 and second terminal 125, extending in a direction perpendicular to the dashed line indicating axis 5 in FIG. 2. As described above, the portion of metal plate 10 disposed between first terminal 124 and second terminal 125 and the portion continuous with this portion and extending in the same direction correspond to connecting portion 123. Therefore, the entire portion of metal plate 10 that is disposed in the region between first connecting portion 124a and second connecting portion 125a and extends in a direction substantially perpendicular to the dashed line indicating axis 5 corresponds to connecting portion 123.

[0048] In this way, multiple terminal portions such as first terminal portion 124 and second terminal portion 125 are defined depending on the direction in which multiple openings such as first opening 126 of first coil conductor 121 and second opening 127 of second coil conductor 122 are arranged, and the connecting portion 123 can be defined by the positional relationship between the multiple terminal portions defined in this way and the connecting portion 123. Furthermore, one end of each of coil conductors such as first coil conductor 121 and second coil conductor 122 is connected to a terminal portion such as first terminal portion 124 and second terminal portion 125, and the other end is connected to the connecting portion 123. Therefore, the coil conductor can be defined by the relationship between the coil conductor, the terminal portion, and the connecting portion.

[0049] The metal plate 10 may have a portion that does not correspond to any of the terminal portions such as the first terminal portion 124 and the second terminal portion 125, the connecting portion 123, and the coil conductors (the first coil conductor 121 and the second coil conductor 122). The above-mentioned virtual lines (the first virtual line 201 and the second virtual line 202) may or may not coincide with the bending points of the metal plate 10.

[0050] In the first embodiment, the metal plate 10 provided with the lead frame 11 before bending may be manufactured as an intermediate product. Also, in the first embodiment, the metal plate 10 provided with the coil component 1 after bending may be manufactured as an intermediate product. Also, in the first embodiment, the coil device 100 may be manufactured as a final product.

[0051] In the first embodiment, the metal plate 10 provided with the lead frame 11 before bending may be manufactured as an intermediate product. Also, in the first embodiment, the metal plate 10 provided with the coil component 1 after bending may be manufactured as an intermediate product. Also, in the first embodiment, the coil device 100 may be manufactured as a final product.

[0052] The coil component 1 may be entirely or partially covered with an insulating material, or may not be covered with an insulating material.

[0053] In the first embodiment described above, the coil component 1 can provide the following technical effects.

[0054] With respect to the coil component 1, one end of the first coil conductor 121 and one end of the second coil conductor 122 are arranged symmetrically via a connecting portion 123. A first terminal portion 124 is provided at the other end of the first coil conductor 121, and a second terminal portion 125 is provided at the other end of the second coil conductor 122. With the positions of the first terminal portion 124 and the second terminal portion 125 fixed, the metal plate 10 is bent so that the first opening 126 and the second opening 127 overlap. This allows a product in which multiple coil components 1 are connected together on the metal plate 10, i.e., multiple coil components 1 can be handled as a single product, thereby improving productivity when manufacturing coils such as the coil device 100.

[0055] In the coil component 1, one of the first coil conductor 121 and the second coil conductor 122, i.e., the second coil conductor 122, is bent. Therefore, the coil component 1 can be manufactured more easily than in a configuration in which both the first coil conductor 121 and the second coil conductor 122 are bent.

[0056] With respect to the coil component 1, the first terminal 124 and the second terminal 125 are provided in opposing positions via the connecting portion 123. Therefore, it is possible to configure the coil component 1 in which the first terminal 124 and the second terminal 125 are arranged in opposing positions.

[0057] With respect to the metal plate 10, one end of the first coil conductor 121 and one end of the second coil conductor 122 are disposed symmetrically via a connecting portion 123. A first terminal portion 124 is provided at the other end of the first coil conductor 121, and a second terminal portion 125 is provided at the other end of the second coil conductor 122. By bending the metal plate 10 so that the first opening 126 and the second opening 127 overlap with the positions of the first terminal portion 124 and the second terminal portion 125 fixed, it is possible to form the coil component 1. This allows the metal plate 10 to be used in a product in which multiple coil components 1 are connected together with the positions of the first terminal portion 124 and the second terminal portion 125 fixed, i.e., multiple coil portions, to be treated as a single product, thereby improving productivity when manufacturing coils such as the coil device 100.

[0058] When one of the first coil conductor 121 and the second coil conductor 122 is bent, the bending angle is 180 degrees with respect to the connecting portion 123, so the direction in which the magnetic field in the coil component 1 becomes stronger can be set to a direction that intersects with the connecting portion 123. In this case, when the coil component 1 is mounted on a substrate, the coil component 1 is less susceptible to the influence of electrical coupling with other coil components mounted on the substrate.

[0059] Second Embodiment Next, a coil component 1A and a metal plate 10A according to a second embodiment will be described with reference to Fig. 3. Fig. 3 is a perspective view of the coil component 1A according to the second embodiment and the metal plate 10A constituting the lead frame 11A of the coil component 1A. Note that the coil component 1A may include a housing 2 as shown in Fig. 1.

[0060] In the second embodiment, an example will be described in which both the first coil conductor 121a and the second coil conductor 122a are bent at an angle of 180 degrees.

[0061] Referring to Fig. 3, the metal plate 10A is a conductive thin plate that is subjected to processes such as punching and bending to form the lead frame 11A of the coil component 1A. The metal plate 10A is a hoop material made of a strip of metal. Fig. 3 shows the configuration of a portion of the entire length of the metal plate 10A. The metal plate 10A has two surfaces, a first surface 101A and a second surface 102A, that face each other in the thickness direction of the metal plate 10A. Fig. 3 shows the configuration of the metal plate 10A as viewed from the first surface 101A side.

[0062] FIG. 3 shows a lead frame 11A in a state after punching and before bending, and a coil component 1A after punching and after bending, in a state that allows comparison.

[0063] The metal plate 10A is first punched out of a hoop material made of a strip of metal, to form a plurality of lead frames 11A at predetermined intervals. As a result, at the stage where the punching process has been performed, the metal plate 10A is provided with a plurality of lead frames 11A in a state before being bent.

[0064] After the metal plate 10A is punched, each lead frame 11A is bent along an axis such as axis 6 and axis 7 shown by dashed lines in the figure, thereby providing multiple coil components 1A at predetermined intervals.

[0065] In FIG. 3, the lead frame 11A and the coil component 1A are shown in one drawing so that the difference in configuration between the lead frame 11A before bending and the coil component 1A after bending can be compared.

[0066] The lead frame 11A includes a first coil conductor 121a, a second coil conductor 122a, a connecting portion 123a, a first terminal portion 124A, and a second terminal portion 125A, which are obtained by punching a metal plate 10A.

[0067] In the lead frame 11A, the first coil conductor 121a, the second coil conductor 122a, the connecting portion 123a, the first terminal portion 124A, and the second terminal portion 125A are integrally provided on the same plane of the metal plate 10A. The first coil conductor 121a and the second coil conductor 122a are each approximately rectangular in shape when viewed in the thickness direction. The first coil conductor 121a and the second coil conductor 122a are each similar in shape when viewed in the thickness direction. This makes it easy to form a coil component 1A using the first coil conductor 121a and the second coil conductor 122a.

[0068] In the coil component 1A, the first terminal 124A and the second terminal 125A are provided in positions facing each other with the connecting portion 123a interposed therebetween, thereby forming the coil component 1 in which the first terminal 124A and the second terminal 125A are arranged in positions facing each other with the connecting portion 123a interposed therebetween.

[0069] In the lead frame 11A, the first coil conductor 121a and the second coil conductor 122a are arranged in a line-symmetrical shape with respect to the connecting portion 123a. In this manner, the first coil conductor 121a and the second coil conductor 122a are arranged symmetrically with respect to the connecting portion 123a. More specifically, the first coil conductor 121a and the second coil conductor 122a are arranged with the connecting portion 123a interposed therebetween, and are arranged such that the distance between the first opening 126a and the connecting portion 123a and the distance between the second opening 127a and the connecting portion 123a are approximately the same. In this case, "approximately the same distance" refers to a distance in the range of 95% to 105% of the distance between the first opening 126a and the connecting portion 123a. The first terminal portion 124A and the second terminal portion 125A are provided so as to extend parallel to each other in the width direction of the metal plate 10A.

[0070] The first terminal 124A includes a first connection portion 124c and a first lead portion 124d. The first connection portion 124c is connected to one end of the first coil conductor 121a, and the second lead portion 125d is led out of the housing 2 when a coil device similar to the coil device 100 shown in FIG. 1 is configured.

[0071] The second terminal 125A includes a second connection portion 125c and a second lead portion 125d. The second connection portion 125c is connected to one end of the second coil conductor 122a, and the second lead portion 125d is led out of the housing 2 when a coil device similar to the coil device 100 shown in FIG. 1 is configured.

[0072] The coil component 1A is obtained by bending the first coil conductor 121a and the second coil conductor 122a in different directions in the lead frame 11A so that the second opening 127a of the second coil conductor 122a and the first opening 126a of the first coil conductor 121a overlap.

[0073] Specifically, the first coil conductor 121a is bent from above the connecting portion 123a at an angle of 180 degrees relative to the connecting portion 123a along axis 6, which is indicated by a dashed line in the figure. The second coil conductor 122a is bent from below the connecting portion 123a at an angle of 180 degrees relative to the connecting portion 123a along axis 7, which is indicated by a dashed line in the figure. In this manner, the coil component 1A is formed by bending both the first coil conductor 121a and the second coil conductor 122a.

[0074] Note that the bending process for bending the first coil conductor 121a at a 180-degree angle relative to the connecting portion 123a may be performed by bending the first coil conductor 121a at an angle of approximately 180 degrees. This angle of approximately 180 degrees is within the range of 175 degrees to 185 degrees. Also, the bending process for bending the second coil conductor 122a at a 180-degree angle relative to the connecting portion 123a may be performed by bending the second coil conductor 122a at an angle of approximately 180 degrees. This angle of approximately 180 degrees is within the range of 175 degrees to 185 degrees.

[0075] In the coil component 1A, the first coil conductor 121a and the connecting portion 123a are bent to be spaced apart by a fixed distance, and the second coil conductor 122a and the connecting portion 123a are bent to be spaced apart by a fixed distance.

[0076] By performing this bending process, the coil component 1A assumes a shape in which the first coil conductor 121a is disposed above the second coil conductor 122a with the connecting portion 123a sandwiched therebetween, as shown in FIG.

[0077] In the coil component 1A that has been bent as described above, the angle (e.g., 0 degrees) between the first coil conductor 121a and the connecting portion 123a is the same as the angle (e.g., 0 degrees) between the second coil conductor 122a and the connecting portion 123a. Note that the angle between the first coil conductor 121a and the connecting portion 123a and the angle between the second coil conductor 122a and the connecting portion 123a may be approximately the same as long as the angle is within the range of -5 degrees to +5 degrees.

[0078] The coil component 1A shown in Fig. 3 is not separated from the metal plate 10A. The coil component 1A shown in Fig. 3 is not in a state where the first connection portion 124a and the first lead portion 124b are bent at the first terminal portion 124A. Similarly, the coil component 1A shown in Fig. 3 is not in a state where the second connection portion 125a and the second lead portion 125b are bent at the second terminal portion 125A.

[0079] When constructing a coil device similar to the coil device 100 shown in FIG. 1 , the coil device 1A shown in FIG. 3 has the first terminal portion 124A and the second terminal portion 125A separated from the metal plate 10A. In the coil device 1A shown in FIG. 3 , the first lead portion 124d of the first terminal portion 124A is led out from the left end of the first side surface 21 of the housing 2, bent along the first side surface 21, and extended toward the second main surface 2B. Furthermore, the first lead portion 124d is bent at an angle of approximately 90 degrees at the boundary between the first side surface 21 of the housing 2 and the second main surface 2B of the housing 2. This angle of approximately 90 degrees is in the range of 85 degrees to 95 degrees. The first bent portion, which is the bent portion of the first lead portion 124d, extends along a portion of the second main surface 2B.

[0080] 3, in the second terminal portion 125A, the second lead portion 125d is led out from the right end portion of the first side surface 21 of the housing 2, bent along the first side surface 21, and extended in the direction of the second main surface 2B. Furthermore, the second lead portion 125d is bent at an angle of approximately 90 degrees at the boundary between the second side surface 22 of the housing 2 and the second main surface 2B of the housing 2. This angle of approximately 90 degrees is an angle in the range of 85 degrees to 95 degrees. The second bent portion, which is the bent portion of the second lead portion 125d in this manner, extends so as to follow a part of the second main surface 2B.

[0081] The first coil conductor 121a, the second coil conductor 122a, the first bent portion, and the second bent portion are arranged parallel to each other inside the housing 2. Note that the first coil conductor 121a, the second coil conductor 122a, the first bent portion, and the second bent portion may be arranged substantially parallel to each other. "Substantially parallel" means that the angle between the first coil conductor 121, the second coil conductor 122, the first bent portion, and the second bent portion is within a range of -15 degrees to +15 degrees when any one of them is used as a reference.

[0082] The bending process described above is performed on each of the plurality of lead frames 11A provided on the metal plate 10A as described above, so that the metal plate 10A after the bending process has a shape in which a plurality of coil components 1A after the bending process are provided at predetermined intervals.

[0083] In the second embodiment, the metal plate 10A provided with the lead frame 11A before bending may be manufactured as an intermediate product. Also, in the second embodiment, the metal plate 10A provided with the coil component 1A after bending may be manufactured as an intermediate product. Also, in the second embodiment, a coil device corresponding to the coil device 100 may be manufactured as a final product.

[0084] In the second embodiment, the first coil conductor 121a is bent above the connecting portion 123a, and the second coil conductor 122a is bent below the connecting portion 123a. However, the present invention is not limited to this, and the first coil conductor 121a may be bent below the connecting portion 123a, and the second coil conductor 122a may be bent above the connecting portion 123a.

[0085] In the second embodiment, both the first coil conductor 121 a and the second coil conductor 122 a may be configured to be bent above the connecting portion 123 a, or both the first coil conductor 121 a and the second coil conductor 122 a may be configured to be bent below the connecting portion 123 a.

[0086] With the above-described configuration, in the second embodiment, in addition to obtaining the same effects as in the first embodiment with respect to the configuration common to the first embodiment, the following effects can be obtained with respect to the configuration different from the first embodiment.

[0087] In the second embodiment, both the first coil conductor 121a and the second coil conductor 122a are bent, which allows for a wide variety of winding methods for the first coil conductor 121a and the second coil conductor 122a.

[0088] In the second embodiment, the first terminal 124A and the second terminal 125A are arranged in parallel positions, thereby forming the coil component 1A in which the first terminal 124 and the second terminal 125 are arranged in parallel positions.

[0089] <Embodiment 3> Next, a coil component 1B and a metal plate 10B according to embodiment 3 will be described with reference to Fig. 4. Fig. 4 is a perspective view of a coil component 1B according to embodiment 3 and a metal plate 10B constituting a lead frame 11B of the coil component 1B. The metal plate 10B has two surfaces, a first surface 101B and a second surface 102B, which face each other in the thickness direction of the metal plate 10B. Fig. 4 shows the configuration of the metal plate 10B as viewed from the first surface 101B side. Note that the coil component 1B may include a housing 2 as shown in Fig. 1.

[0090] In embodiment 3, an example is described of a coil component 1B having a structure in which a third terminal portion 128 is added to the configuration of the coil component 1A and metal plate 10A shown in embodiment 2, and a metal plate 10B that constitutes the lead frame 11B of the coil component 1B.

[0091] 4, the metal plate 10B is a conductive thin plate that is subjected to processes such as punching and bending to form the lead frame 11B of the coil component 1B. The metal plate 10B is a hoop material made of a strip of metal. Fig. 4 shows the configuration of a portion of the entire length of the metal plate 10B.

[0092] FIG. 4 shows a lead frame 11B in a state after punching and before bending, and a coil component 1B after punching and after bending, in a state that allows comparison.

[0093] The metal plate 10B is first punched out of a hoop material made of a strip of metal, to form a plurality of lead frames 11B at predetermined intervals. As a result, at the stage where the punching process has been performed, the metal plate 10B is provided with a plurality of lead frames 11B in a state before being bent.

[0094] After the metal plate 10B is punched, each lead frame 11B is bent along an axis such as axis 6 and axis 7 shown by dashed lines in the figure, thereby providing multiple coil components 1B at predetermined intervals.

[0095] In FIG. 4, the lead frame 11B and the coil component 1B are shown in one drawing so that the difference in configuration between the lead frame 11B before bending and the coil component 1B after bending can be compared.

[0096] 3 in that the lead frame 11B and the coil component 1B are provided with a third terminal portion 128. The third terminal portion 128 is provided on the other end in the width direction of the metal plate 10B, which is opposite to the end at which the first terminal portion 124A and the second terminal portion 125A are provided.

[0097] The third terminal 128 is connected to the coupling portion 123a. The third terminal 128 includes a third connection portion 128a and a third lead portion 128b. The third connection portion 128a is connected to the coupling portion 123a, and the third lead portion 128b is led out of the housing 2 when a coil device similar to the coil device 100 shown in FIG. 1 is configured.

[0098] In the lead frame 11B, the first coil conductor 121a, the second coil conductor 122a, the connecting portion 123a, the first terminal portion 124A, the second terminal portion 125A, and the third terminal portion 128 are integrally arranged on the same plane on the metal plate 10B.

[0099] As in the case of embodiment 2, the coil component 1B is obtained by processing the lead frame 11B to bend the first coil conductor 121a and the second coil conductor 122a in different directions so that the first opening 126a of the first coil conductor 121a and the second opening 127a of the second coil conductor 122a overlap.

[0100] Specifically, the first coil conductor 121a is bent from above the connecting portion 123a along axis 6 indicated by a dashed line in the figure, at an angle of 180 degrees relative to the connecting portion 123a and the third terminal 128. The second coil conductor 122a is bent from below the connecting portion 123a along axis 7 indicated by a dashed line in the figure, at an angle of 180 degrees relative to the connecting portion 123a and the third terminal 128.

[0101] Note that the bending process for bending the first coil conductor 121a at an angle of 180 degrees relative to the connecting portion 123a and the third terminal portion 128 may be performed by bending the first coil conductor 121a at an angle of approximately 180 degrees. This angle of approximately 180 degrees is an angle within the range of 175 degrees to 185 degrees. Also, the bending process for bending the second coil conductor 122a at an angle of 180 degrees relative to the connecting portion 123a and the third terminal portion 128 may be performed by bending the second coil conductor 122a at an angle of approximately 180 degrees. This angle of approximately 180 degrees is an angle within the range of 175 degrees to 185 degrees.

[0102] In coil component 1B, first coil conductor 121a is bent so as to space a fixed distance between it and connecting portion 123a and third terminal 128, and second coil conductor 122a is bent so as to space a fixed distance between it and connecting portion 123a and third terminal 128. In this manner, coil component 1B is formed by bending both first coil conductor 121a and second coil conductor 122a.

[0103] As a result of this bending process, the coil component 1B has a shape as shown in Figure 4, in which the first coil conductor 121a is positioned above the second coil conductor 122a, sandwiched between the connecting portion 123a and the third terminal portion 128, and the second coil conductor 122a is positioned below the first coil conductor 121a, sandwiched between the connecting portion 123a and the third terminal portion 128.

[0104] In the coil component 1B that has been bent as described above, the angle (e.g., 0 degrees) between the first coil conductor 121a and the connecting portion 123a is the same as the angle (e.g., 0 degrees) between the second coil conductor 122a and the connecting portion 123a. Note that the angle between the first coil conductor 121a and the connecting portion 123a and the angle between the second coil conductor 122a and the connecting portion 123a may be approximately the same as long as the angle is within the range of -5 degrees to +5 degrees.

[0105] The coil component 1B shown in Fig. 4 is not separated from the metal plate 10B. The coil component 1B shown in Fig. 4 is not in a state where the first connection portion 124a and the first lead portion 124b are bent at the first terminal portion 124A. The coil component 1B shown in Fig. 4 is not in a state where the second connection portion 125a and the second lead portion 125b are bent at the second terminal portion 125A. The coil component 1B shown in Fig. 4 is not in a state where the third connection portion 128a and the third lead portion 128b are bent at the third terminal portion 128.

[0106] When configuring a coil device similar to the coil device 100 shown in Fig. 1 , the first terminal portion 124A, the second terminal portion 125A, and the third terminal portion 128 of the coil device 1B shown in Fig. 4 are cut off from the metal plate 10B. In the coil device 1B shown in Fig. 4 , the first lead portion 124b of the first terminal portion 124A is led out as described in the second embodiment. In the second terminal portion 125, the second lead portion 125b is led out as described in the second embodiment. Furthermore, in the third terminal portion 128, the third lead portion 128b is led out from the second side surface 22 of the housing 2, bent along the second side surface 22, and extended in the direction of the second main surface 2B.

[0107] The bending process described above is performed on each of the plurality of lead frames 11B provided on the metal plate 10B as described above, so that the metal plate 10B after the bending process has a shape in which a plurality of coil components 1B after the bending process are provided at predetermined intervals.

[0108] In the third embodiment, the metal plate 10B provided with the lead frame 11B before bending may be manufactured as an intermediate product. Also, in the third embodiment, the metal plate 10B provided with the coil component 1B after bending may be manufactured as an intermediate product. Also, in the third embodiment, a coil device corresponding to the coil device 100 may be manufactured as a final product.

[0109] In the case of the structure shown in FIG. 4 , the connecting portion 123 a may be defined as follows. For example, in the case of having three or more terminal portions, such as the first terminal portion 124A, the second terminal portion 125A, and the third terminal portion 128, the "space between the terminal portions" described in the first embodiment is determined to be a position that maximizes the distance between the two virtual lines with the longest distance. Specifically, in the configuration shown in FIG. 4 , since there are three terminal portions, the virtual lines are configured such that the third virtual line is disposed between the first virtual line and the second virtual line. In this case, the "space between the terminal portions" used to define the connecting portion 123 a is the space between the first virtual line and the second virtual line, which are the virtual lines with the longest distance between them, and the connecting portion 123 a is defined using the same technical concept as that described in the first embodiment.

[0110] With the above-described configuration, in the third embodiment, in addition to obtaining the same effects as the aforementioned embodiments with respect to the configuration common to the aforementioned embodiments, the following effects can be obtained with respect to the configuration different from the aforementioned embodiments.

[0111] Since the coil component 1B further includes a third terminal portion 128 provided on the connecting portion 123a, it is possible to configure the coil component 1B having three terminal portions, namely, a first terminal portion 124A, a second terminal portion 125A, and a third terminal portion 128.

[0112] Fourth Embodiment Next, a coil component 1C and a metal plate 10C according to a fourth embodiment will be described with reference to FIG. 5 . FIG. 5 is a perspective view of a coil component 1C according to the fourth embodiment and a metal plate 10C constituting a lead frame 11C of the coil component 1C. The metal plate 10C is a hoop material made of a strip-shaped metal. FIG. 5 shows the configuration of a portion of the entire length of the metal plate 10C. The metal plate 10C has two surfaces, a first surface 101C and a second surface 102C, which face each other in the thickness direction of the metal plate 10C. FIG. 5 shows the configuration of the metal plate 10C as viewed from the first surface 101C side. The coil component 1C may include a housing 2 as shown in FIG. 1 .

[0113] In embodiment 4, an example is described of a coil component 1C having a structure in which a third terminal portion 129 and a fourth terminal portion 130 are added to the configuration of the coil component 1A and the metal plate 10A shown in embodiment 2, and a metal plate 10C constituting the lead frame 11C of the coil component 1C.

[0114] Referring to FIG. 5, metal plate 10C is a conductive thin plate that is subjected to processes such as punching and bending to form lead frame 11C of coil component 1C.

[0115] FIG. 5 shows a lead frame 11C in a state after punching and before bending, and a coil component 1C after punching and after bending, in a state that allows comparison.

[0116] The metal plate 10C is first punched out of a hoop material made of a strip of metal, to form a plurality of lead frames 11C at predetermined intervals. As a result, at the stage where the punching process has been performed, the metal plate 10C is provided with a plurality of lead frames 11C in a state before being bent.

[0117] After the metal plate 10C is punched, each lead frame 11C is bent along an axis such as axis 6 and axis 7 shown by the dashed lines in the figure, thereby providing multiple coil components 1C at predetermined intervals.

[0118] In FIG. 5, the lead frame 11C and the coil component 1C are shown in one drawing so that the difference in configuration between the lead frame 11C before bending and the coil component 1C after bending can be compared.

[0119] 3 in that lead frame 11C and coil component 1C are provided with third terminal portion 129 and fourth terminal portion 130. Third terminal portion 129 and fourth terminal portion 130 are provided on the other end side in the width direction of metal plate 10C, which is opposite to the end side on which first terminal portion 124A and second terminal portion 125A are provided.

[0120] The third terminal 129 is connected to the coupling portion of the coupling portion 123a with the first coil conductor 121a. The third terminal 129 includes a third connection portion 129a and a third lead portion 129b. The third connection portion 129a is connected to the coupling portion of the coupling portion 123a with the first coil conductor 121a, and the third lead portion 129b is led out of the housing 2 when a coil device similar to the coil device 100 shown in FIG. 1 is configured.

[0121] The fourth terminal 130 is connected to the coupling portion of the coupling portion 123a with the second coil conductor 122a. The fourth terminal 130 includes a fourth connection portion 130a and a fourth lead portion 130b. The fourth connection portion 130a is connected to the coupling portion of the coupling portion 123a with the second coil conductor 122a, and the fourth lead portion 130b is led out of the housing 2 when configuring a coil device similar to the coil device 100 shown in FIG. 1 .

[0122] In the lead frame 11C, the first coil conductor 121a, the second coil conductor 122a, the connecting portion 123a, the first terminal portion 124A, the second terminal portion 125A, the third terminal portion 129, and the fourth terminal portion 130 are integrally arranged on the same plane on the metal plate 10C.

[0123] As in the case of embodiment 2, the coil component 1C is obtained by bending the first coil conductor 121a and the second coil conductor 122a in different directions in the lead frame 11C so that the second opening 127a of the second coil conductor 122a and the first opening 126a of the first coil conductor 121a overlap.

[0124] Specifically, the first coil conductor 121a is bent along axis 6 indicated by a dashed line in the figure from above the connecting portion 123a at an angle of 180 degrees relative to the connecting portion 123a, the third terminal 129, and the fourth terminal 130. The second coil conductor 122a is bent along axis 7 indicated by a dashed line in the figure from below the connecting portion 123a at an angle of 180 degrees relative to the connecting portion 123a, the third terminal 129, and the fourth terminal 130. In this manner, the coil component 1C is formed by bending both the first coil conductor 121a and the second coil conductor 122a.

[0125] The bending process for bending the first coil conductor 121a at an angle of 180 degrees relative to the connecting portion 123a, the third terminal 129, and the fourth terminal 130 may be performed by bending the first coil conductor 121a at an angle of approximately 180 degrees. This angle of approximately 180 degrees is an angle within the range of 175 degrees to 185 degrees. The bending process for bending the second coil conductor 122a at an angle of 180 degrees relative to the connecting portion 123a, the third terminal 129, and the fourth terminal 130 may be performed by bending the second coil conductor 122a at an angle of approximately 180 degrees. This angle of approximately 180 degrees is an angle within the range of 175 degrees to 185 degrees.

[0126] In coil component 1C, the first coil conductor 121a is bent so that a fixed distance is maintained between the connecting portion 123a and the third terminal portion 128, and the second coil conductor 122a is bent so that a fixed distance is maintained between the connecting portion 123a and the third terminal portion 128.

[0127] As a result of this bending process, the coil component 1C has a shape as shown in Figure 5, in which the first coil conductor 121a is positioned above the second coil conductor 122a, sandwiched between the connecting portion 123a, the third terminal portion 129, and the fourth terminal portion 130, and the second coil conductor 122a is positioned below the first coil conductor 121a, sandwiched between the connecting portion 123a, the third terminal portion 129, and the fourth terminal portion 130.

[0128] In the coil component 1C that has been bent as described above, the angle (e.g., 0 degrees) between the first coil conductor 121a and the connecting portion 123a is the same as the angle (e.g., 0 degrees) between the second coil conductor 122a and the connecting portion 123a. Note that the angle between the first coil conductor 121a and the connecting portion 123a and the angle between the second coil conductor 122a and the connecting portion 123a may be approximately the same as long as the angle is within the range of -5 degrees to +5 degrees.

[0129] The coil component 1C shown in Fig. 5 is not separated from the metal plate 10C. The coil component 1C shown in Fig. 5 is not in a state where the first connection portion 124c and the first lead portion 124d are bent at the first terminal portion 124A. The coil component 1C shown in Fig. 5 is not in a state where the second connection portion 125c and the second lead portion 125d are bent at the second terminal portion 125A.

[0130] 5, the third connection portion 129a and the third lead portion 129b are not bent at the third terminal portion 129. The coil device 1C shown in FIG. 5 is also not bent at the fourth terminal portion 130, the fourth connection portion 130a and the fourth lead portion 130b are not bent at the fourth terminal portion 130.

[0131] When the coil device 1C shown in Fig. 5 is configured into a coil device similar to the coil device 100 shown in Fig. 1, the first terminal portion 124A, the second terminal portion 125A, the third terminal portion 129, and the fourth terminal portion 130 are separated from the metal plate 10C. In the coil device 1C shown in Fig. 5, the first lead portion 124d of the first terminal portion 124A is led out as described in embodiment 2. In the second terminal portion 125, the second lead portion 125d is led out as described in embodiment 2.

[0132] Furthermore, in the third terminal 129, the third lead portion 129b is drawn out from the right end portion of the second side surface 22 of the housing 2, bent along the second side surface 22, and extended in the direction of the second main surface 2B. Furthermore, in the fourth terminal 130, the fourth lead portion 130b is drawn out from the left end portion of the second side surface 22 of the housing 2, bent along the second side surface 22, and extended in the direction of the second main surface 2B.

[0133] The bending process described above is performed on each of the plurality of lead frames 11C provided on the metal plate 10C as described above, so that the metal plate 10C after the bending process has a shape in which a plurality of coil components 1C after the bending process are provided at predetermined intervals.

[0134] In the fourth embodiment, the metal plate 10C provided with the lead frame 11C before bending may be manufactured as an intermediate product. Also, in the fourth embodiment, the metal plate 10C provided with the coil component 1C after bending may be manufactured as an intermediate product. Also, in the fourth embodiment, a coil device corresponding to the coil device 100 may be manufactured as a final product.

[0135] Since the coil component 1C further includes a third terminal portion 129 provided on one end side of the first coil conductor 121a and a fourth terminal portion 130 provided on one end side of the second coil conductor 122a, it is possible to form a coil component having four terminal portions, namely, the first terminal portion 124A, the second terminal portion 125A, the third terminal portion 129, and the fourth terminal portion 130.

[0136] With the above-described configuration, in the fourth embodiment, in addition to obtaining the same effects as the aforementioned embodiments with respect to the configuration common to the aforementioned embodiments, the following effects can be obtained with respect to the configuration different from the aforementioned embodiments.

[0137] Since the coil component 1C further includes a third terminal portion 129 provided on one end side of the first coil conductor 121a and a fourth terminal portion 130 provided on one end side of the second coil conductor 122a, it is possible to configure the coil component 1C having four terminal portions, namely, the first terminal portion 124A, the second terminal portion 125A, the third terminal portion 129, and the fourth terminal portion 130.

[0138] Furthermore, in the width direction of the metal plate 10C, two terminal portions, the first terminal portion 124A and the second terminal portion 125A, are provided on one side, and two terminal portions, the third terminal portion 129 and the fourth terminal portion 130, are provided on the other side, so that the strength of each portion of the metal plate 10C can be improved when performing the bending process as described above.

[0139] Fifth Embodiment Next, a coil component 1D and a metal plate 10D according to a fifth embodiment will be described with reference to FIG. 6 . FIG. 6 is a perspective view of a coil component 1D according to the fifth embodiment and a metal plate 10D constituting a lead frame 11D of the coil component 1D. The metal plate 10D is a hoop material made of a strip-shaped metal. FIG. 6 shows the configuration of a portion of the entire length of the metal plate 10D. The metal plate 10D has two surfaces, a first surface 101D and a second surface 102D, which face each other in the thickness direction of the metal plate 10D. FIG. 6 shows the configuration of the metal plate 10D as viewed from the first surface 101D side. The coil component 1D may include a housing 2 as shown in FIG. 1 .

[0140] In embodiment 5, an example is described in which a lead frame 11D is provided with a first coil conductor 121 and a second coil conductor 122 similar to the coil component 1 shown in embodiment 1 and the first coil conductor 121 and the second coil conductor 122 provided on the metal plate 10, and a coil component 1D is obtained by performing bending processing to bend the first coil conductor 121 at a 90-degree angle relative to the connecting portion 123 and to bend the second coil conductor 122 at a 90-degree angle relative to the connecting portion 123.

[0141] Referring to FIG. 6, the metal plate 10D is a conductive thin plate that is subjected to processes such as punching and bending to form a lead frame 11D of the coil component 1D.

[0142] FIG. 6 shows a lead frame 11D in a state after punching and before bending, and a coil component 1D after punching and after bending, in a state that allows comparison.

[0143] The metal plate 10D is first punched out of a hoop material made of a strip of metal, to form a plurality of lead frames 11D at predetermined intervals. As a result, at the stage where the punching process has been performed, the metal plate 10D is provided with a plurality of lead frames 11D in a state before being bent.

[0144] After the metal plate 10D is punched, each lead frame 11D is bent along an axis such as axis 8 and axis 9 shown by the dashed lines in the figure, thereby providing multiple coil components 1D at predetermined intervals.

[0145] In FIG. 6, the lead frame 11D and the coil component 1D are shown in one drawing so that the difference in configuration between the lead frame 11D before bending and the coil component 1D after bending can be compared.

[0146] The lead frame 11D and the coil component 1D differ from the lead frame 11 and the coil component 1 in Fig. 1 in the following respects: A first terminal 124B is provided instead of the first terminal 124 shown in Fig. 1 , and a second terminal 125B is provided instead of the second terminal 125 shown in Fig. 1 .

[0147] The first terminal 124B includes a first connecting portion 124e and a first lead portion 124f. The second terminal 125B includes a second connecting portion 125e and a second lead portion 125f.

[0148] The first connection portion 124e is a portion connected to the other end of the first coil conductor 121. The first lead-out portion 124f is a portion that is led out to the outside of the housing 2 when configuring a coil device similar to the coil device 100 shown in FIG. 1. The first connection portion 124e and the first lead-out portion 124f are provided with the same width as the first coil conductor 121.

[0149] The second connection portion 125e is a portion connected to the other end of the second coil conductor 122. The second lead-out portion 125f is a portion that is led out to the outside of the housing 2 when configuring a coil device similar to the coil device 100 shown in FIG. 1 . The second connection portion 125e and the second lead-out portion 125f are provided with the same width as the second coil conductor 122.

[0150] In the lead frame 11D, the first coil conductor 121, the second coil conductor 122, the connecting portion 123a, the first terminal portion 124B, and the second terminal portion 125B are integrally provided on the same plane of the metal plate 10D.

[0151] Unlike the case of embodiment 1, the coil component 1D is obtained by bending the first coil conductor 121 and the second coil conductor 122 in opposing directions in the lead frame 11D so that the first opening 126 of the first coil conductor 121 and the second opening 127 of the second coil conductor 122 overlap.

[0152] Specifically, the first coil conductor 121 is bent at a 90-degree angle relative to the connecting portion 123 above the connecting portion 123 along axis 8, which is indicated by a dashed line in the figure. The second coil conductor 122 is bent at a 90-degree angle relative to the connecting portion 123 above the connecting portion 123 along axis 7, which is indicated by a dashed line in the figure. The angle at which the first coil conductor 121 is bent relative to the connecting portion 123 may be approximately 90 degrees. This approximately 90 degrees is an angle in the range of 85 degrees to 95 degrees. The angle at which the second coil conductor 122 is bent relative to the connecting portion 123 may be approximately 90 degrees. This approximately 90 degrees is an angle in the range of 85 degrees to 95 degrees.

[0153] In the coil component 1D, the first coil conductor 121 is bent so as to be spaced a fixed distance from the connecting portion 123, and the second coil conductor 122 is bent so as to be spaced a fixed distance from the connecting portion 123. In this manner, the coil component 1D is formed by bending both the first coil conductor 121 and the second coil conductor 122.

[0154] By performing this bending process, the coil component 1D takes on a shape in which the first coil conductor 121 and the second coil conductor 122 are arranged opposite each other at a fixed distance above the connecting portion 123, as shown in Figure 6.

[0155] In the coil component 1D that has been bent as described above, the angle (e.g., 0 degrees) between the first coil conductor 121a and the connecting portion 123a is the same as the angle (e.g., 0 degrees) between the second coil conductor 122a and the connecting portion 123a. Note that the angle between the first coil conductor 121 and the connecting portion 123 and the angle between the second coil conductor 122 and the connecting portion 123 may be approximately the same. This approximately same angle may be within the range of -5 degrees to +5 degrees.

[0156] The coil component 1D shown in Fig. 6 is not separated from the metal plate 10D. The coil component 1D shown in Fig. 6 is not in a state where the first connection portion 124e and the first lead portion 124f are bent at the first terminal portion 124B. The coil component 1D shown in Fig. 6 is not in a state where the second connection portion 125e and the second lead portion 125f are bent at the second terminal portion 125B.

[0157] When constructing a coil device similar to the coil device 100 shown in FIG. 1 , the coil device 1D shown in FIG. 6 has the first terminal portion 124B and the second terminal portion 125B separated from the metal plate 10D. In the coil device 1D shown in FIG. 6 , the first lead portion 124f of the first terminal portion 124B is led out from the right end of the first side surface 21 of the housing 2, bent along the second side surface 22, and extended toward the second main surface 2B. Furthermore, the first lead portion 124f is bent at an angle of approximately 90 degrees at the boundary between the first side surface 21 of the housing 2 and the second main surface 2B of the housing 2. This angle of approximately 90 degrees is in the range of 85 degrees to 95 degrees. The first bent portion, which is the bent portion of the first lead portion 124f, extends along a portion of the second main surface 2B.

[0158] 6, in the second terminal portion 125B, the second lead portion 125f is led out from the left end of the second side surface 22 of the housing 2, bent along the second side surface 22, and extended in the direction of the second main surface 2B. Furthermore, the second lead portion 125f is bent at an angle of approximately 90 degrees at the boundary between the second side surface 22 of the housing 2 and the second main surface 2B of the housing 2. This angle of approximately 90 degrees is an angle in the range of 85 degrees to 95 degrees. The second bent portion, which is the bent portion of the second lead portion 125f, extends so as to follow a part of the second main surface 2B.

[0159] The first coil conductor 121, the second coil conductor 122, the first bent portion, and the second bent portion are arranged parallel to each other inside the housing 2. Note that it is sufficient that the first coil conductor 121, the second coil conductor 122, the first bent portion, and the second bent portion are arranged substantially parallel to each other. "Substantially parallel" means that, when any of the first coil conductor 121, the second coil conductor 122, the first bent portion, and the second bent portion is used as a reference, the angle between them is within a range of -15 degrees to +15 degrees.

[0160] The bending process described above is performed on each of the plurality of lead frames 11D provided on the metal plate 10D as described above, so that the metal plate 10D after the bending process has a shape in which a plurality of coil components 1D after the bending process are provided at predetermined intervals.

[0161] In the fifth embodiment, the metal plate 10D provided with the lead frame 11D before bending may be manufactured as an intermediate product. Also, in the fifth embodiment, the metal plate 10D provided with the coil component 1D after bending may be manufactured as an intermediate product. Also, in the fifth embodiment, a coil device corresponding to the coil device 100 may be manufactured as a final product.

[0162] With the above-described configuration, the coil component 1A of embodiment 5 can obtain the same effects as the coil component 1 of embodiment 1 with respect to the configuration common to the coil component 1 of embodiment 1, and in addition, can obtain the following effects with respect to the configuration different from the coil component 1 of embodiment 1.

[0163] When both the first coil conductor 121 and the second coil conductor 122 are bent, the bending angle is 90 degrees with respect to the connecting portion 123, so the direction in which the magnetic field in the coil component 1D becomes stronger can be set to be parallel to the connecting portion 123. In this case, when the coil component 1D is mounted on a substrate, the coil component 1D is less susceptible to the influence of the substrate or the shielding case.

[0164] <Additional Notes> Next, features of the embodiments of the present disclosure will be summarized.

[0165] (1) A coil component (coil components 1, 1A, 1B, 1C, 1D) according to the present disclosure includes: a first coil conductor (first coil conductor 121, 121a) having a first opening (first opening 126, 126a); a second coil conductor (second coil conductor 122, 122a) having a second opening (second opening 127, 127a); a coupling portion (coupling portion 123, 123a) coupling one end side of the first coil conductor (first coil conductor 121, 121a) to one end side of the second coil conductor (second coil conductor 122, 122a); and a first terminal portion (first terminal portion 124, 124A, 124B) provided on the other end side of the first coil conductor (first coil conductor 121, 121a). a second terminal portion (second terminal portion 125, 125A, 125B) provided on the other end side of the second coil conductor (second coil conductor 122, 122a), The first coil conductor (first coil conductor 121, 121a) and the second coil conductor (second coil conductor 122, 122a) are bent so that the first opening (first opening 126, 126a) and the second opening (second opening 127, 127a) overlap with each other while the positions of the first terminal portions (first terminal portions 124, 124A, 124B) and the second terminal portions (second terminal portions 125, 125A, 125B) are fixed, and the angle formed between the first coil conductor (first coil conductor 121, 121a) and the connecting portion (connecting portion 123, 123a) and the angle formed between the second coil conductor (second coil conductor 122, 122a) and the connecting portion (connecting portion 123, 123a) are approximately the same angle.

[0166] According to this configuration, one end of the first coil conductor and one end of the second coil conductor are connected by a connecting portion. A first terminal portion is provided on the other end of the first coil conductor, and a second terminal portion is provided on the other end of the second coil conductor. With the positions of the first terminal portion and the second terminal portion fixed, the first opening and the second opening are bent so as to overlap, and the angle between the first coil conductor and the connecting portion and the angle between the second coil conductor and the connecting portion are approximately the same. This allows a product in which multiple coil components are connected together on a metal plate, i.e., the multiple coil components, to be treated as a single product, thereby improving productivity in coil manufacturing.

[0167] (2) A coil component (coil components 1, 1A, 1B, 1C, 1D) according to the present disclosure includes a housing (housing 2) having a pair of a first main surface (first main surface 2A) and a second main surface (second main surface 2B) facing each other, and four side surfaces (first side surface 21, second side surface 22, third side surface 23, and fourth side surface 24) from a first side surface (first side surface 21) to a fourth side surface (fourth side surface 24) connecting the first main surface (first main surface 2A) and the second main surface (second main surface 2B); first coil conductors (first coil conductors 121, 121a) provided inside the housing (housing 2) and having first openings (first openings 126, 126a); second coil conductors (second coil conductors 122, 122a) provided inside the housing (housing 2) and having second openings (second openings 127, 127a); a coupling portion (coupling portion 123, 123a) provided inside the housing (housing 2) and coupling one end side of the first coil conductor (first coil conductor 121, 121a) and one end side of the second coil conductor (second coil conductor 122, 122a); first terminal portions (first terminal portions 124, 124A, 124B) provided inside and outside the housing (housing 2) and provided on the other end side of the first coil conductor (first coil conductor 121, 121a); ​​and second terminal portions (second terminal portions 125, 125A, 125B) provided inside and outside the housing (housing 2) and provided on the other end side of the second coil conductor (second coil conductor 122, 122a), The first coil conductor (first coil conductor 121, 121a) and the second coil conductor (second coil conductor 122, 122a) are bent so that the first openings (first openings 126, 126a) and the second openings (second openings 127, 127a) overlap with each other, with the positions of the first terminal portions (first terminal portions 124, 124A, 124B) and the positions of the second terminal portions (second terminal portions 125, 125A, 125B) being fixed,124B) is pulled out from the inside to the outside of the housing at the first side surface (first side surface 21), is bent along the first side surface (first side surface 21), and is also bent at the boundary between the first side surface (first side surface 21) and the second main surface (second main surface 2B), and a first bent portion (first bent portion 124b1) which is the bent portion extends along a part of the second main surface (second main surface 2B), The second terminal portions (second terminal portions 125, 125A, 125B) are drawn from the inside to the outside of the housing (housing 2) at the first side surface, and are bent along a second side surface (second side surface 22) of the four side surfaces (first side surface 21, second side surface 22, third side surface 23, and fourth side surface 24), and are also bent at the boundary between the second side surface (second side surface 22) and the second main surface (second main surface 2B), with a second bent portion (second bent portion 125b1) being the bent portion extending along a part of the second main surface (second main surface 2B), The first coil conductor (first coil conductor 121, 121a), the second coil conductor (second coil conductor 122, 122a), the first bent portion (first bent portion 124b1), and the second bent portion (second bent portion 125b1) are arranged substantially in parallel.

[0168] According to this configuration, one end of the first coil conductor and one end of the second coil conductor are connected by a connecting portion. A first terminal portion is provided on the other end of the first coil conductor, and a second terminal portion is provided on the other end of the second coil conductor. With the positions of the first terminal portion and the second terminal portion fixed, the first opening and the second opening are bent so as to overlap. The first coil conductor, the second coil conductor, the first bent portion of the first terminal portion, and the second bent portion of the second terminal portion are arranged approximately parallel to each other. This allows a product in which multiple coil components are connected together on a metal plate, i.e., multiple coil components, to be treated as a single product, thereby improving productivity in coil manufacturing.

[0169] (3) In the coil component (coil components 1, 1A, 1B, 1C, and 1D) described in (1) or (2), the first coil conductor and the second coil conductor have similar shapes when viewed in the thickness direction.

[0170] With this configuration, the first coil conductor and the second coil conductor have similar shapes when viewed in their respective thickness directions, making it easy to form coil components using the first coil conductor and the second coil conductor.

[0171] (4) In the coil component (coil component 1) described in any one of (1) to (3), one of the first coil conductor (first coil conductor 121) and the second coil conductor (second coil conductor 122) is bent (second coil conductor 122).

[0172] According to this configuration, one of the first coil conductor and the second coil conductor is bent, which makes it possible to easily manufacture the coil component 1.

[0173] (5) In the coil component (coil components 1A, 1B, 1C, 1D) described in any one of (1) to (3), the first coil conductor (first coil conductor 121a) and the second coil conductor (second coil conductor 122a) are both bent (first coil conductor 121a, second coil conductor 122a).

[0174] According to this configuration, both of the first coil conductor and the second coil conductor are bent, which allows for a wide variety of winding methods for the first coil conductor and the second coil conductor.

[0175] (6) In the coil component (coil component 1, 1D) described in any one of (1) to (3), the first coil conductor (first coil conductor 121, 121a) and the second coil conductor (second coil conductor 122, 122a) are formed by a metal plate (metal plate 10, 10D) having a first surface (first surface 101, 101D) and a second surface (second surface 102, 102D) that face each other in the thickness direction, and at least one of the first coil conductor (first coil conductor 121, 121a) and the second coil conductor (second coil conductor 122, 122a) is bent, and the first surfaces (first surfaces 101, 101D) face each other.

[0176] According to this configuration, at least one of the first coil conductor and the second coil conductor is bent, and the coil component can be configured with the first surfaces facing each other.

[0177] (7) In the coil component (coil component 1A, 1B, 1C) described in any one of (1) to (3), the first coil conductor (first coil conductor 121, 121a) and the second coil conductor (second coil conductor 122, 122a) are formed by a metal plate (metal plate 10A, 10B, 10C) having a first surface (first surface 101A, 101B, 101C) and a second surface (second surface 102A, 102B, 102C) that face each other in a thickness direction, and both the first coil conductor (first coil conductor 121, 121a) and the second coil conductor (second coil conductor 122, 122a) are bent, and the first surface (first surface 101A, 101B, 101C) and the second surface (second surface 102A, 102B, 102C) face each other.

[0178] According to this configuration, the coil component can be configured such that both the first coil conductor and the second coil conductor are bent and the first surface and the second surface face each other.

[0179] (8) In the coil component (coil components 1A, 1B, 1C) described in any one of (1) to (3), the first terminal portion (first terminal portion 124, 124A) and the second terminal portion (second terminal portion 125, 125A) are provided in positions facing each other via the connecting portion (connecting portion 123, 123a).

[0180] According to this configuration, a coil component can be configured in which the first terminal portion and the second terminal portion are arranged in positions facing each other via the connecting portion.

[0181] (9) In the coil component (coil components 1A, 1B, 1C) described in any one of (1) to (8), the first terminal portion (first terminal portion 124A) and the second terminal portion (second terminal portion 125A) are provided in parallel positions.

[0182] With this configuration, it is possible to configure a coil component in which the first terminal portion and the second terminal portion are arranged in parallel positions.

[0183] (10) The coil component (coil component 1B) according to (9) further includes a third terminal portion (third terminal portion 128) provided on the connecting portion (connecting portion 123a).

[0184] According to this configuration, the coil component further includes a third terminal portion provided on the connecting portion, so that a coil component having three terminal portions can be configured.

[0185] (11) The coil component (coil component 1C) described in (9) further includes a third terminal portion (third terminal portion 129) provided on one end side of the first coil conductor (first coil conductor 121a), and a fourth terminal portion (fourth terminal portion 130) provided on one end side of the second coil conductor (second coil conductor 122a).

[0186] According to this configuration, the coil component further includes a third terminal portion provided on one end side of the first coil conductor and a fourth terminal portion provided on one end side of the second coil conductor, thereby making it possible to form a coil component having four terminal portions.

[0187] (12) In the coil component (coil component 1) described in (4), when one of the first coil conductor (first coil conductor 121) and the second coil conductor (second coil conductor 122) is bent, the bending angle is approximately 180 degrees with respect to the connecting portion.

[0188] According to this configuration, when one of the first coil conductor and the second coil conductor is bent, the bending angle is approximately 180 degrees with respect to the connecting portion. This allows the direction in which the magnetic field in the coil component becomes stronger to be a direction that intersects with the connecting portion. In this case, when the coil component is mounted on a substrate, the coil component is less susceptible to the influence of electrical coupling with other coil components mounted on the substrate.

[0189] (13) In the coil component (coil components 1A, 1B, 1C) described in (5), when both the first coil conductor (first coil conductor 121a) and the second coil conductor (second coil conductor 122a) are bent, the bending angle of each is approximately 180 degrees with respect to the connecting portion.

[0190] According to this configuration, when both the first coil conductor and the second coil conductor are bent, the bending angle with respect to the connecting portion is approximately 180 degrees. This allows the direction in which the magnetic field in the coil component becomes stronger to be a direction that intersects with the connecting portion. In this case, when the coil component is mounted on a substrate, the coil component is less susceptible to the influence of electrical coupling with other coil components mounted on the substrate.

[0191] (14) In the coil component (coil component 1D) described in (4), when both the first coil conductor (first coil conductor 121) and the second coil conductor (second coil conductor 122) are bent, each bending angle is approximately 90 degrees with respect to the connecting portion.

[0192] With this configuration, when both the first coil conductor and the second coil conductor are bent, the bending angle of each is approximately 90 degrees relative to the connecting portion, so the direction in which the magnetic field in the coil part 1D becomes stronger can be made parallel to the connecting portion.

[0193] (15) A metal plate (metal plate 10, 10A, 10B, 10C, 10D) according to the present disclosure includes: a first coil conductor (first coil conductor 121, 121a) having a first opening (first opening 126, 126a); a second coil conductor (second coil conductor 122, 122a) having a second opening (second opening 127, 127a); a coupling portion (coupling portion 123, 123a) coupling one end side of the first coil conductor (first coil conductor 121, 121a) to one end side of the second coil conductor (second coil conductor 122, 122a); and a first terminal portion (first terminal portion 124, 124A, 124B) provided on the other end side of the first coil conductor (first coil conductor 121, 121a). and a second terminal portion (second terminal portion 125, 125A, 125B) provided on the other end side of the second coil conductor (second coil conductor 122, 122a), and the first coil conductor (first coil conductor 121, 121a) and the second coil conductor (second coil conductor 122, 122a) are arranged via the connecting portion (connecting portion 123, 123a) so that the distance between the first opening and the connecting portion and the distance between the second opening and the connecting portion are approximately the same.

[0194] According to this configuration, one end of the first coil conductor and one end of the second coil conductor are connected via a connecting portion in the metal plate, and the distance between the first opening and the connecting portion and the distance between the second opening and the connecting portion are approximately the same. A first terminal portion is provided at the other end of the first coil conductor, and a second terminal portion is provided at the other end of the second coil conductor. With such a metal plate, a coil component can be formed by bending the metal plate so that the first opening and the second opening overlap while the positions of the first terminal portion and the second terminal portion are fixed. This allows the metal plate to be used in a product in which multiple coil components are connected together while the positions of the first terminal portion and the second terminal portion are fixed, i.e., multiple potential coil components can be treated as a single product, thereby improving productivity in coil manufacturing.

[0195] (16) In the metal plate (metal plate 10, 10A, 10B, 10C, 10D) described in (15), the first terminal portion (first terminal portion 124, 124A) and the second terminal portion (second terminal portion 125, 125A) are provided in positions facing each other via the connecting portion (connecting portion 123, 123a).

[0196] According to this configuration, it is possible to configure a metal plate in which the first terminal portion and the second terminal portion are arranged in positions facing each other via the connecting portion.

[0197] (17) In the metal plate (metal plate 10A, 10B, 10C) described in (15), the first terminal portion (first terminal portion 124, 124A) and the second terminal portion (second terminal portion 125, 125A) are provided in parallel positions.

[0198] According to this configuration, it is possible to form a metal plate in which the first terminal portion and the second terminal portion are arranged in parallel positions.

[0199] (18) The metal plate (metal plate 10B) according to (17) further includes a third terminal portion (third terminal portion 128) provided on the connecting portion (connecting portion 123a).

[0200] According to this configuration, the metal plate further includes a third terminal portion provided at the connecting portion, so that it is possible to configure a metal plate from which a coil component having three terminal portions can be obtained.

[0201] (19) The metal plate (metal plate 10C) described in (17) further includes a third terminal portion (third terminal portion 129) provided on one end side of the first coil conductor (first coil conductor 121a), and a fourth terminal portion (fourth terminal portion 130) provided on one end side of the second coil conductor (second coil conductor 122a).

[0202] With this configuration, the metal plate product further includes a third terminal portion provided on one end side of the first coil conductor and a fourth terminal portion provided on one end side of the second coil conductor, so that a metal plate can be constructed that can produce a coil component having four terminal portions.

[0203] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the above description, and is intended to include all modifications within the meaning and scope of the claims.

[0204] 1, 1A, 1B, 1C, 1D Coil component, 126, 126a First opening, 121, 121a First coil conductor, 127, 127a Second opening, 122, 122a Second coil conductor, 124, 124A, 124B First terminal portion, 125, 125A, 125B Second terminal portion, 123, 123a Connecting portion, 128, 129 Third terminal portion, 130 Fourth terminal portion, 10, 10A, 10B, 10C, 10D Metal plate.

Claims

1. A coil component comprising: a first coil conductor having a first opening; a second coil conductor having a second opening; a connecting portion connecting one end of the first coil conductor to one end of the second coil conductor; a first terminal portion provided on the other end of the first coil conductor; and a second terminal portion provided on the other end of the second coil conductor; wherein the first coil conductor and the second coil conductor are bent so that the first opening and the second opening overlap with each other while the positions of the first terminal portion and the second terminal portion are fixed; and the angle formed between the first coil conductor and the connecting portion and the angle formed between the second coil conductor and the connecting portion are approximately the same.

2. A housing having a pair of first and second main surfaces facing each other and four side surfaces from a first side surface to a fourth side surface connecting the first main surface and the second main surface, a first coil conductor provided inside the housing and having a first opening, a second coil conductor provided inside the housing and having a second opening, a connecting portion provided inside the housing and connecting one end side of the first coil conductor and one end side of the second coil conductor, a first terminal portion provided inside and outside the housing and provided on the other end side of the first coil conductor, and a second terminal portion provided inside and outside the housing and provided on the other end side of the second coil conductor, wherein the first coil conductor and the second coil conductor are bent so that the first opening and the second opening overlap with each other while the positions of the first terminal portion and the second terminal portion are fixed, a coil component in which the first terminal portion is drawn from the inside to the outside of the housing at the first side surface, is bent along the first side surface, and is also bent at the boundary between the first side surface and the second main surface, with the first bent portion being the bent portion extending along a portion of the second main surface; the second terminal portion is drawn from the inside to the outside of the housing at the first side surface, is bent along a second side surface of the four side surfaces, and is also bent at the boundary between the second side surface and the second main surface, with the second bent portion being the bent portion extending along a portion of the second main surface; and the first coil conductor, the second coil conductor, the first bent portion, and the second bent portion are arranged approximately parallel to each other.

3. A coil component according to claim 1 or 2, wherein the first coil conductor and the second coil conductor have similar shapes when viewed in the thickness direction.

4. A coil component according to any one of claims 1 to 3, wherein one of the first coil conductor and the second coil conductor is bent.

5. A coil component according to any one of claims 1 to 3, wherein both the first coil conductor and the second coil conductor are bent.

6. A coil component according to any one of claims 1 to 3, wherein the first coil conductor and the second coil conductor are formed from metal plates having first and second surfaces that face each other in the thickness direction, and at least one of the first coil conductor and the second coil conductor is bent so that the first surfaces face each other.

7. A coil component according to any one of claims 1 to 3, wherein the first coil conductor and the second coil conductor are formed from a metal plate having a first surface and a second surface that face each other in the thickness direction, and both the first coil conductor and the second coil conductor are bent so that the first surface and the second surface face each other.

8. A coil component according to any one of claims 1 to 3, wherein the first terminal portion and the second terminal portion are provided in opposing positions with the connecting portion interposed therebetween.

9. A coil component according to any one of claims 1 to 8, wherein the first terminal portion and the second terminal portion are provided in parallel positions.

10. The coil component according to claim 9, further comprising a third terminal portion provided on the connecting portion.

11. The coil component according to claim 9, further comprising: a third terminal portion provided on one end side of the first coil conductor; and a fourth terminal portion provided on one end side of the second coil conductor.

12. A coil component according to claim 4, wherein when one of the first coil conductor and the second coil conductor is bent, the bending angle is approximately 180 degrees with respect to the connecting portion.

13. A coil component according to claim 5, wherein when both the first coil conductor and the second coil conductor are bent, each bending angle is approximately 180 degrees with respect to the connecting portion.

14. A coil component according to claim 4, wherein when both the first coil conductor and the second coil conductor are bent, each bending angle is approximately 90 degrees with respect to the connecting portion.

15. A metal plate comprising: a first coil conductor having a first opening; a second coil conductor having a second opening; a connecting portion connecting one end of the first coil conductor to one end of the second coil conductor; a first terminal portion provided on the other end of the first coil conductor; and a second terminal portion provided on the other end of the second coil conductor, wherein the first coil conductor and the second coil conductor are provided via the connecting portion and the distance between the first opening and the connecting portion is approximately the same as the distance between the second opening and the connecting portion.

16. The metal plate according to claim 15, wherein the first terminal portion and the second terminal portion are provided in opposing positions with the connecting portion interposed therebetween.

17. The metal plate according to claim 15, wherein the first terminal portion and the second terminal portion are provided in parallel positions.

18. The metal plate according to claim 17, further comprising a third terminal portion provided on the connecting portion.

19. The metal plate according to claim 17, further comprising: a third terminal portion provided on one end side of the first coil conductor; and a fourth terminal portion provided on one end side of the second coil conductor.

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