Electronic component and wire end holding method

Abstract

An electronic component (coil component (1)) comprises a conductive conducting wire (3a) and a conductive member (5) that has a bent terminal (6) which holds an end part of the conducting wire (3a). The bent terminal (6) is provided with a base portion (6a) that supports the conducting wire (3a), a fold portion (6b) that is continuous from one end side of the base portion (6a) and that is bent and folded back, and a bend portion (6c) that is continuous from the fold portion (6b) and that is provided to the tip end side, which is the opposite side from the base portion (6a). The conducting wire (3a) is sandwiched between the base portion (6a) and the fold portion (6b) or the bend portion (6c). The bend portion (6c) is bent toward the base portion (6a) more than a direction tangential to the fold portion (6b), and the gap between the bend portion (6c) and the base portion (6a) is smaller than the width of the conducting wire (3a).

Description

[Technical Field]

[0001] The present invention relates to an electronic component having a conductor and a bent terminal for holding the end of the conductor, and to a method for holding the end of the conductor. [Background technology]

[0002] Patent Document 1 discloses a coil component including a conductive member (referred to as a metal terminal in the document) having a conductor wire (referred to as a wire end in the document) and a bent terminal (referred to as a folded piece in the document) that holds the end of the conductor wire. This bent terminal includes a base portion and a flat folded portion (referred to as a folded piece in the document) that is bent at a substantially right angle from the base portion. With the conductor wire placed on the base portion, the folded portion is crimped so that it is bent toward the base portion, thereby clamping the conductor wire. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-91736 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conductor crimping method disclosed in Patent Document 1, when the flat folded portion is bent to sandwich the conductor (when crimping), the conductor tends to move outward (away from the bending support point of the folded portion). For this reason, there is room for improvement in the electrical and physical connection between the conductor and the conductive member. This outward movement of the conductor occurs when the conductor is pressed against the folded portion that is bent and deformed during crimping.

[0005] The present invention has been made in view of the above-mentioned problems, and provides an electronic component and a method for holding the end of a conductor, which are capable of electrically and physically stably connecting a conductor to a conductive member. [Means for solving the problem]

[0006] The electronic component according to the present invention comprises a conductive wire and a conductive member having a bent terminal for holding an end of the wire, the bent terminal comprising a base portion for supporting the wire, a folded portion continuing from one end side of the base portion and being bent and folded back, and a bent portion continuing from the folded portion and provided on the tip side opposite the base portion, the wire being sandwiched between the base portion and the folded portion or the bent portion, the bent portion being bent in a direction closer to the base portion than a tangent direction of the folded portion, and a gap between the bent portion and the base portion being smaller than the wire width of the wire. There is a gap between the tip of the bent portion and the base portion, and the folded portion has a straight portion that is folded back from the base portion and is located on the base end side of the bent portion, and that extends so as to approach the base portion as it moves from the base end side toward the tip end side, and the conductor is sandwiched between the straight portion and the base portion, and the straight portion elastically biases the conductor. It is characterized by:

[0007] Furthermore, a conductor end holding method according to the present invention includes preparing an electronic component including a conductive conductor and a conductive member having a bent terminal for holding the end of the conductor, wherein the bent terminal includes a base portion for supporting the conductor, a folded portion continuing from one end side of the base portion and being bent and folded back, and a bent portion continuing from the folded portion and provided on a tip side opposite to the conductor, the bent portion being bent toward the conductor portion relative to a tangent direction of the folded portion; the folded portion has a straight portion that is folded back from the base portion and is located on the base end side of the bent portion, and that extends so as to approach the base portion as it moves from the base end side toward the tip end side, The conductive wire is passed between the tip of the bent terminal and the base portion, and the base portion and the folded portion or the bent portion are connected to each other. of and a crimping step of crimping the bent terminal after the arranging step to crush the conductor between the folded portion or the bent portion and the base portion, wherein a gap between the bent portion and the base portion during the arranging step is larger than the wire width of the conductor, and after the crimping step There is a gap between the tip of the bent portion and the base portion, The gap between the bent portion and the base portion is smaller than the width of the conductive wire. The conductor is sandwiched between the straight portion and the base portion, and the straight portion elastically biases the conductor. It is characterized by: [Effects of the Invention]

[0008] According to the present invention, there are provided an electronic component and a method for holding a conductor end, which are capable of electrically and physically stably connecting a conductor to a conductive member. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. [Figure 2] 2 is a cross-sectional view of the bent terminal shown in FIG. 1, illustrating a state after crimping. [Figure 3] 2 is a cross-sectional view of the bent terminal shown in FIG. 1, illustrating a state before crimping. [Figure 4] 1B is a cross-sectional view of the bent terminal shown in FIG. 1B, showing a bent terminal according to a first modified example. FIG. [Figure 5] FIG. 10 is a diagram showing a bent terminal according to a second modified example. [Figure 6] FIG. 10 is a diagram showing a bent terminal according to a third modified example. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The embodiment described below is merely an example to facilitate understanding of the present invention, and is not intended to limit the present invention. In other words, the shapes, dimensions, arrangements, etc. of the components described below may be changed or improved without departing from the spirit of the present invention, and the present invention naturally includes equivalents thereof. Furthermore, the various components of the present invention do not need to be independent entities, and it is acceptable for multiple components to be configured as a single component, for one component to be divided into multiple components, for one component to be part of another component, or for part of one component to overlap with part of another component, etc.

[0011] In addition, in all drawings, similar components are denoted by similar reference numerals, and redundant explanations are omitted where appropriate. Furthermore, although the present specification may refer to a vertical direction, this is set for the sake of convenience in explaining the relative relationships between components, and does not limit the directions during manufacture or use of the product according to the present invention. In particular, in this embodiment, the mounting direction is the upward direction, and the opposite direction is the downward direction, which does not necessarily coincide with the vertical direction in the direction of gravity.

[0012] <Outline of coil components> First, an overview of the coil device 1 will be described mainly with reference to FIGS. Fig. 1 is a perspective view of the coil device 1. Fig. 2 is a cross-sectional view of the bent terminal 6 shown in II of Fig. 1, illustrating a state after crimping, and Fig. 3 is a cross-sectional view of the bent terminal 6 shown in II of Fig. 1, illustrating a state before crimping.

[0013] 1 shows the coil component 1 with the mounting surface to be mounted on the board facing upward, that is, facing in the opposite direction to the general mounting direction on the board, in order to show the entire conductive member 5. In the following, the up-down direction will be described based on the up-down direction in FIG.

[0014] The electronic component (coil component 1) according to this embodiment includes a conductive wire 3a and a conductive member 5 having a bent terminal 6 that holds an end of the conductive wire 3a. The bent terminal 6 comprises a base portion 6a that supports the conductor 3a, a folded portion 6b that continues from one end side of the base portion 6a and is bent and folded back, and a bent portion 6c that continues from the folded portion 6b and is provided on the tip side opposite the base portion 6a. The conductor 3a is sandwiched between the base portion 6a and the folded portion 6b or the bent portion 6c. The bent portion 6c is bent closer to the base portion 6a than the tangent direction of the folded portion 6b, and the gap between the bent portion 6c and the base portion 6a is smaller than the width of the conductive wire 3a.

[0015] Here, the "boundary" between the folded portion 6b and the bent portion 6c is the point at which the curvature changes on the tip side of the folding point of the folded portion 6b of the bent terminal 6, and refers to the tip of the folded portion 6b (in this embodiment, the tip of the straight portion 6f described later) on the outer surface (top surface) of the bent terminal 6 when viewed from a direction perpendicular to an imaginary plane (a plane that includes the up-down and left-right directions in Figure 2) that includes the extension direction of the folded portion 6b and the bent portion 6c (the width direction of the bent terminal 6). The "tangential direction of the folded portion 6b" refers to the tangential direction at the tip of the folded portion 6b (at the boundary with the bent portion 6c), and in this embodiment refers to the extending direction of a straight portion 6f, which will be described later.

[0016] Also, for example, unlike Figure 4, in a configuration in which the folded portion 6b does not include a straight portion 6f and is bent at a predetermined curvature beyond the folding point, the end of the portion that is bent at a relatively higher curvature toward the base portion 6a compared to the portion bent at this predetermined curvature is considered to be the bent portion 6c.

[0017] In this document, the bent portion 6c does not refer only to the portion of the bent terminal 6 where the inclination changes from the folded portion 6b, but also to the portion from the portion where the inclination changes relative to the folded portion 6b to the tip. In other words, the bent portion 6c includes any linearly extending portion on the distal side of the portion where the inclination changes from the folded portion 6b. This also applies to bent portions 16c and 26c described later.

[0018] Regarding the "base portion 6a supporting the conductor 3a" described above, the base portion 6a is not limited to a portion that always supports the conductor 3a. That is, the seat portion 6a may be provided at a position that restricts the movement of the conductor 3a, spaced apart from the conductor 3a, and abuts against and supports the conductor 3a after the crimping process.

[0019] The above phrase "the gap between the bent portion 6c and the base portion 6a is smaller than the width of the conductive wire 3a" includes a configuration in which there is no gap between the bent portion 6c and the base portion 6a. In other words, it also includes a configuration in which the bent portion 6c and the base portion 6a abut against each other. The above-mentioned "wire width" means the wire diameter in the case of a round wire, and the thickness (the length of the short side in the cross section of the rectangular wire) in the case of a rectangular wire.

[0020] For example, if the bent terminal 6 does not have a bent portion 6c, that is, if the portion beyond the folded portion 6b extends linearly, when the bent terminal 6 is crimped, the portion beyond the folded portion 6b of the bent terminal 6 will contact the conductor 3a at one point in a side view. This point contact location may shift depending on the amount of crimping, and the pushing load from the bent terminal 6 to the conductor 3a may tend to be constantly applied outward, causing the conductor 3a to shift outward and come off the bent terminal 6.

[0021] According to the above configuration, the bent portion 6c is provided so as to bend closer to the base portion 6a than the tangent direction of the folded portion 6b, and thus the bent portion 6c acts as a stopper that limits the movement of the conducting wire 3a. In other words, even if the conductor 3a is pushed out into the folded portion 6b or the bent portion 6c of the bent terminal 6 when the bent terminal 6 is bent (crimped), the bent portion 6c can prevent the conductor 3a from coming out from between the base portion 6a and the folded portion 6b or the bent portion 6c.

[0022] In this embodiment, the electronic component according to the present invention will be described taking as an example a coil component 1 serving as a common mode choke coil, but is not limited to such a configuration. For example, the present invention is applicable not only to the coil component 1 but also to any electronic component having a bent terminal for holding a conductor.

[0023] The conductor end holding method according to this embodiment includes an arrangement step of preparing the above-mentioned electronic component (coil component 1), passing the conductor 3a between the tip of the bent terminal 6 and the base portion 6a, and arranging it between the base portion 6a and the folded portion 6b or the bent portion 6c, and a crimping step of crimping the bent terminal 6 after the arrangement step to crush the conductor 3a between the folded portion 6b or the bent portion 6c and the base portion 6a. The gap between the bent portion 6c and the base portion 6a during the placement process is larger than the wire width of the conductive wire 3a, and the gap between the bent portion 6c and the base portion 6a after the crimping process is smaller than the wire width of the conductive wire 3a.

[0024] According to the above configuration, the gap between the bent portion 6c and the base portion 6a during the placement step is larger than the width of the conductor 3a, allowing the conductor 3a to be placed smoothly during the placement step. Furthermore, the gap between the bent portion 6c and the base portion 6a after the crimping step is smaller than the width of the conductor 3a, preventing the conductor 3a from coming off between the base portion 6a and the folded portion 6b or the bent portion 6c after the crimping step.

[0025] In other words, by forming a bent portion 6c on the bent terminal 6 (by providing a bent portion toward the base portion 6a before the crimping process), the bent portion 6c can act as a stopper that limits the movement of the conductor 3a.

[0026] The folded portion 6b includes a linear portion 6f that extends linearly at the end where it is folded upward from the base portion 6a side. The straight portion 6f of the folded portion 6b extends obliquely downward from the base end side toward the tip end side, in other words, extends linearly and inclined downward so as to approach the base portion 6a.

[0027] The inclination angle of this straight portion 6f is preferably 2 degrees or more and 30 degrees or less, and more preferably 5 degrees or more and 25 degrees or less, with respect to the upper surface of the base portion 6a (a horizontal surface in contact with the conductive wire 3a). The length of the straight portion 6f is preferably 1 to 5 times the wire width of the conductor 3a (in the case of a rectangular wire, the length in the width direction (the longitudinal direction in the cross section of the rectangular wire)), and more preferably 1.5 to 3 times.

[0028] According to the above configuration, the conductor 3a can be constantly elastically urged by the straight portion 6f and / or the bent portion 6c, which have downwardly sloping walls, toward the rear side of the U-turn of the folded portion 6b (the side toward the folding point of the folded portion 6b, the left side in FIG. 2) due to the crimping from the straight portion 6f. The conductor 3a abuts against the wall, preventing it from moving around in the bending space of the bent portion 6b. This ensures that the holding position of the conductor 3a for each individual product is stable and consistent, making it easier for the worker or the working device to cut the conductor 3a to align with the end of the conductive member 5 and determine the position for laser irradiation.

[0029] In particular, since the portion that holds the conductor 3a is a straight portion in the straight portion 6f or the bent portion 6c, it becomes easier to apply a load in the clamping direction to the conductor 3a between the base portion 6a and the straight portion in the straight portion 6f or the bent portion 6c, thereby increasing the holding force on the conductor 3a and stabilizing the position of the conductor 3a during laser irradiation as described below.

[0030] [Overall configuration] The coil component 1 of this embodiment comprises a drum core 2, a coil 3 composed of a conductor 3a wound around the center of the drum core 2, an I-core 4 connected to both ends of the drum core 2 to form a magnetic circuit together with the drum core 2, and a conductive member 5 to which the ends of the conductor 3a are connected.

[0031] Four conductive members 5 are provided at each of the four corners of the top surface of the coil component 1, and have bent terminals 6 that clamp ends of the conductive wires 3a of the coil 3 on the outer sides in the width direction perpendicular to the axial direction of the coil 3. The conductive member 5 has a mounting plane on the uppermost surface to be mounted on a printed circuit board, a bridging portion that extends downward and outward in the width direction from the mounting plane, and bent terminals 6 connected to the bridging portion.

[0032] Terminal The bent terminal 6 will be described mainly with reference to FIGS. The bent terminal 6 has a base portion 6a on which the conductor 3a is placed and which extends horizontally from the lower end of the bridging portion, a folded portion 6b on the base portion 6a which is folded from the inside to the outside in the width direction of the coil component 1 (in a horizontal plane, a direction perpendicular to the axial direction of the coil 3), and a bent portion 6c which is located closer to the tip than the folded portion 6b.

[0033] At the four corners of the top surface of coil device 1 in Fig. 1, welding is performed between the extreme ends of conducting wire 3a and both outer axial ends of conductive member 5, thereby forming weld beads as shown in Fig. 1. Before welding, bent terminals 6 were formed on both outer axial ends of conductive member 5, but these were melted by welding to form the weld beads. However, the present invention is not limited to this configuration, and the number of bent terminals 6 is not limited to two at each of the four corners of the top surface of the coil device 1 in Fig. 1, but only one may be formed. Furthermore, for example, only two bent terminals 6 may be formed on the coil device 1.

[0034] The bending angle θ of the bent portion 6c shown in FIG. 2 is preferably 25 degrees or more and 45 degrees or less with respect to the tangent direction of the folded portion 6b (the portion of the folded portion 6b adjacent to the bent portion 6c). In this embodiment, the folded portion 6b has a straight portion 6f, and the bent portion 6c also has a straight portion, and the bending angle θ refers to the angle of the straight portion of the bent portion 6c relative to the extension direction of the straight portion 6f of the folded portion 6b (which is the same as the tangent direction of the part adjacent to the bent portion 6c).

[0035] According to the above configuration, since the bending portion 6c (the first bending portion 16d described later) is in this angle range, the movement range of the conductor 3a is limited, and even if the tip of the bent terminal 6 abuts against the base portion 6a, the reaction force generated at the time of abutment is suppressed, thereby preventing the crimping operation from being hindered.

[0036] Specifically, the "tangential direction of the folded portion 6b" refers to the tangential direction of the outer surface of the folded portion 6b (the upper surface, which is the surface pressed by the punch of a crimping machine not shown) when viewed from a direction perpendicular to an imaginary plane including the extension direction of the folded portion 6b and the bent portion 6c. However, the present invention is not limited to this configuration, and if the purpose is to restrict the position of the conductor 3a, the bending angle of the bent portion 6c may be perpendicular to the tangent direction of the folded portion 6b.

[0037] The length of the bent portion 6c is preferably 0.5 to 2 times the thickness of the bent portion 6c, more preferably 1 time or more, and even more preferably 1.5 times or less. Here, the "length of the bent portion 6c" refers to the length of the central portion of the bent portion 6c in the thickness direction.

[0038] For example, the thickness of the bent portion 6c according to this embodiment (the plate thickness of the bent terminal 6) is 0.1 mm, and the length of the bent portion 6c is 0.15 mm. According to the above configuration, when the length of the bent portion 6c is 0.5 times or more the thickness of the bent portion 6c, movement of the conductor 3a can be easily restricted, and when it is 2 times or less, protrusion can be suppressed. It should be noted that the length of the bent portion 6c may be shorter than the above length if the bent angle of the bent portion 6c relative to the tangent line of the folded portion 6b is increased.

[0039] The thickness of the folded portion 6b is preferably 1.5 to 3 times the diameter of the conductive wire 3a. For example, the diameter of the conductor wire 3a is preferably 0.02 mm to 0.06 mm. Note that although the conductor wire 3a according to this embodiment is a round wire, it is not limited to a round wire and may be a rectangular wire. In the case of a rectangular wire, the diameter of the conductor wire 3a is to be interpreted as the thickness (vertical length) of the conductor wire 3a.

[0040] According to the above configuration, by making the diameter 1.5 times or more the diameter of the conductor 3a, the conductor 3a can be held in place, and by making the diameter 3 times or less, the bending portion 6c formed integrally with the folded portion 6b can be easily bent during crimping.

[0041] [Manufacturing method] Next, a method for manufacturing the bent terminal 6 for holding the conductor wire 3a will be described. The plurality of conductive members 5 are formed on a hoop material (not shown). The plurality of conductive members 5 are provided with bent terminals 6 having bent portions 6c formed thereon as shown in FIG. 3 by punching using a press at the stage of a raw sheet.

[0042] Specifically, the above press processing is performed by placing a jig below the folded portion 6b and above the base portion 6a using a crimping machine (not shown), and then pressing the punch of the crimping machine against the bent portion 6c from above to bend it.

[0043] This conductive member 5 is adhered to the drum core 2 (ferrite) and wound around the drum core 2 to form the coil 3 (two coils 3 in this embodiment). The conductor wires 3a (four conductor wires 3a in this embodiment) that are the terminals of the coil 3 are disposed between the base portion 6a and the bent portion 6c of the bent terminal 6.

[0044] The conductor 3a drawn from the coil 3 is first fixed to a jig (not shown) located outside the conductive member 5. With the conductor 3a fixed by the jig (not shown), the folded portion 6b and the bent portion 6c of the bent terminal 6 are crimped by press working. This crimping process clamps the conductor 3a between the folded portion 6b and / or the bent portion 6c and the base portion 6a. In other words, the crimping process bends and deforms the folded portion 6b or the bent portion 6c to a position where the conductor 3a is crushed by the pressure from the folded portion 6b or the bent portion 6c. This allows the electrical connection between the conductor 3a and the conductive member 5 to be maintained stably. With the conductor 3a held in place by this clamping, the fixation by the jig (not shown) is released, and the excess length of the conductor 3a is cut off. Then, a laser is irradiated onto the end of the conductive member 5 and the tip of the conductor 3a to fuse them together and form a weld ball.

[0045] In the bent terminal 6, in the state before crimping shown in FIG. 3, the gap between the lower end of the bent portion 6c and the upper surface of the base portion 6a is larger than the diameter of the conducting wire 3a. Before and after the crimping process, the rate of change in bending of the folded portion 6b of the bent terminal 6 in the axial direction of the bent terminal 6 is greater than the rate of change in bending of the bent portion 6c. The rate of change in bending of the folded portion 6b is greater after the crimping process than before the crimping process.

[0046] [First Modification] Next, a first modified example will be described with reference to Fig. 4. Fig. 4 is a cross-sectional view of the bent terminal 6 shown in II of Fig. 1, illustrating the bent terminal 6 according to the first modified example. 4, in the bent terminal 6 according to the first modification, the conductor 3a is clamped at three locations: the base portion 6a, the folded portion 6b, and the bent portion 6c. The conductor 3a is clamped at three locations: the base portion 6a, the folded portion 6b, and the bent portion 6c.

[0047] According to the above configuration, the conductor wire 3a can be kept free of play and can be firmly held by the base portion 6a, the folded portion 6b and the bent portion 6c. In other words, by clamping the conductor 3a at three points, the vertical movement of the conductor 3a can be restricted by the base portion 6a, the folded portion 6b, and the bent portion 6c, while the horizontal movement of the conductor 3a can be restricted by the folded portion 6b and the bent portion 6c.

[0048] [Second Modification] Next, a bent portion 16c according to a second modified example will be described mainly with reference to Fig. 5. Fig. 5 is a diagram showing a bent terminal 16 according to the second modified example.

[0049] The bending portion 16c of the bent terminal 16 has, in addition to a first bending portion 16d that bends toward the base portion 6a, a second bending portion 16e that is located closer to the tip than the first bending portion 16d and bends in the opposite direction to the bending direction of the first bending portion 16d. In the bent portion 16c, the second bent portion 16e is formed so as to fit along the base portion 6a.

[0050] Furthermore, the first bent portion 16d does not refer only to the portion of the bent terminal 16 where the inclination changes from the folded-back portion 6b, but refers to the portion from the portion where the inclination changes with respect to the folded-back portion 6b to the second bent portion 16e. This also applies to the first bent portion 26d described later. The second bent portion 16e does not refer only to the portion where the inclination changes from the first bent portion 16d, but also refers to the portion from the portion where the inclination changes from the first bent portion 16d to the tip. This also applies to the second bent portion 26e described later.

[0051] The tip end (second bent portion 16e) of the bent portion 16c according to this example is pressed against the base portion 6a by a punch of a crimping machine (not shown), and is bent in a direction along the base portion 6a. The above-mentioned "second bent portion 16e bent in the opposite direction to the bending direction of the first bent portion 16d" specifically means that the second bent portion 16e is bent in the opposite direction (upward with respect to the tangential direction of the first bent portion 16d, horizontally in FIG. 5) to the bending direction of the first bent portion 16d based on the tangential direction of the folded portion 6b (i.e., downward in FIG. 5, the direction toward the base portion 6a).

[0052] According to the above configuration, since the second bend portion 16e is aligned along the base portion 6a, the holding state of the conductor 3a by the bend portion 16c can be made more stable, and the conductor 3a can be prevented from slipping out of the gap between the bend portion 16c and the base portion 6a. Such a bent portion 16c is formed by pressing a punch (not shown) used for crimping against the second bent portion 16e until the second bent portion 16e presses against the base portion 6a.

[0053] It is preferable that the bent portion 16c abuts against the base portion 6a and presses against it. Note that "abutting" is not limited to point contact or line contact, but also includes surface contact as shown in FIG. 5. According to the above configuration, the conducting wire 3a is less likely to slip out of the gap between the bent portion 16c and the base portion 6a.

[0054] In this example, the first bent portion 16d and the second bent portion 16e have approximately the same length, but the length of the first bent portion 16d may be different from the length of the second bent portion 16e.

[0055] [Third Modification] Next, a bent terminal 26 according to a third modified example will be described with reference to Fig. 6. Fig. 6 is a diagram showing the bent terminal 26 according to the third modified example. The bent terminal 26 according to this example includes a first bent portion 26d that bends toward the base portion 6a, and a second bent portion 26e that is located closer to the tip than the first bent portion 26d and bends in the opposite direction to the bending direction of the first bent portion 26d. The lower end of the tip of the second bent portion 26e abuts against the base portion 6a and is in pressure contact (to form a line contact).

[0056] The above-mentioned "second bent portion 26e bent in the opposite direction to the bending direction of the first bent portion 26d" specifically means that the second bent portion 26e is bent in a bending direction opposite to the bending direction of the first bent portion 26d based on the tangent direction of the folded portion 6b (i.e., downward in Figure 6, which is the direction toward the base portion 6a) (upper side based on the tangent direction of the first bent portion 26d, and diagonally downward in Figure 6, inclined at a shallower angle relative to the base portion 6a than the first bent portion 26d).

[0057] The second bent portion 26e according to this embodiment is preferably formed to be longer than the first bent portion 26d. Specifically, the second bent portion 26e may be formed to be 1.5 times longer than the length of the first bent portion 26d. In the above configuration, the lower end of the tip of the second bent portion 26e is also in pressure contact with the base portion 6a, so that the conducting wire 3a is less likely to slip out of the gap between the bent portion 26c and the base portion 6a.

[0058] The above-described embodiments and modifications encompass the following technical ideas. (1) a conductive wire; a conductive member having a bent terminal for holding an end of the conductor, The bent terminal is a base portion that supports the conductor; a folded portion that is continuous with one end side of the base portion and is bent and folded back; a bent portion that is continuous with the folded portion and is provided on a tip side opposite to the base portion, the conducting wire is sandwiched between the base portion and the folded portion or the bent portion, The electronic component is characterized in that the bent portion is bent in a direction closer to the base portion than the tangent direction of the folded portion, and the gap between the bent portion and the base portion is smaller than the line width of the conductor. (2) The electronic component according to (1), wherein the conducting wire is sandwiched between the base portion, the folded portion, and the bent portion. (3) the bending portion has a first bending portion that bends toward the base portion and a second bending portion that is located closer to the tip end than the first bending portion and bends in a direction opposite to the bending direction of the first bending portion, The electronic component according to (1) or (2), wherein the second bent portion of the bent portion is formed so as to fit along the base portion. (4) The electronic component according to any one of (1) to (3), wherein the bent portion abuts against and presses against the base portion. (5) The electronic component according to any one of (1) to (4), wherein the folded portion has a straight portion that extends from the base end toward the tip end toward the base portion after being folded back from the base portion. (6) The electronic component according to (5), wherein the straight portion and / or the bent portion elastically biases the conductor toward the folded point of the folded portion. (7) The electronic component according to (5) or (6), wherein the inclination angle of the linear portion is 2 degrees or more and 30 degrees or less with respect to the surface of the base portion that contacts the conductive wire. (8) The electronic component according to any one of (5) to (7), wherein the length of the linear portion is 1 to 5 times the width of the conductive wire. (9) The electronic component according to any one of (1) to (8), wherein the bending angle of the bending portion is 25 degrees or more and 45 degrees or less with respect to the tangent direction of the folded portion. (10) The electronic component according to any one of (1) to (9), wherein the length of the bent portion is 0.5 to 2 times the thickness of the bent portion. (11) The electronic component according to any one of (1) to (10), wherein the thickness of the folded portion is 1.5 times or more and 3 times or less the diameter of the conductive wire. (12) a conductive wire; a conductive member having a bent terminal for holding an end of the conductor; The bent terminal is a base portion that supports the conductor; a folded portion that is continuous with one end side of the base portion and is bent and folded back; a bent portion that is continuous with the folded portion, is provided on a tip side opposite to the base portion, and is bent toward the base portion with respect to a tangential direction of the folded portion, an arrangement step of passing the conductor between the tip of the bent terminal and the base portion and arranging the conductor between the base portion and the folded portion or the bent portion; a crimping step of crimping the bent terminal after the arranging step to crush the conductor between the folded portion or the bent portion and the base portion; Equipped with a gap between the bent portion and the base portion during the placement step is larger than a line width of the conductive wire; The method for holding an end of a conductor, wherein a gap between the bent portion and the base portion after the crimping step is smaller than the width of the conductor. [Explanation of symbols]

[0059] 1. Coil parts (electronic parts) 2. Drum Core 3 coils 3a conductor 4. I-Core 5 Conductive material 6 Bent terminal 6a Base 6b Folded part 6c Bend part 6f Straight section 16 Bent terminal 16c Bend part 16d 1st bending part 16e 2nd bend 26 Bent terminal 26c Bend part 26d 1st bending part 26e 2nd bend

Claims

1. a conductive wire; a conductive member having a bent terminal for holding an end of the conductor, The bent terminal is a base portion that supports the conductor; a folded portion that is continuous with one end side of the base portion and is bent and folded back; a bent portion that is continuous with the folded portion and is provided on a tip side opposite to the base portion, the conducting wire is sandwiched between the base portion and the folded portion or the bent portion, the bent portion is bent toward the base portion with respect to a tangential direction of the folded portion, and a gap between the bent portion and the base portion is smaller than a line width of the conductor, There is a gap between the tip of the bent portion and the base portion, the folded portion has a straight portion that is folded back from the base portion and is located on the base end side of the bent portion, and that extends so as to approach the base portion as it moves from the base end side toward the tip end side, the conducting wire is sandwiched between the straight portion and the base portion, The straight portion elastically biases the conductor wire.

2. The electronic component according to claim 1 , wherein the conductor is sandwiched between the base portion, the folded portion, and the bent portion.

3. the bending portion has a first bending portion that bends toward the base portion, and a second bending portion that is located closer to the tip end than the first bending portion and bends toward the opposite side to the bending direction of the first bending portion, The electronic component according to claim 1 , wherein the second bent portion of the bent portion is formed so as to follow the base portion.

4. The electronic component according to claim 1 , wherein the bent portion abuts against and presses against the base portion.

5. 4. The electronic component according to claim 1, wherein the bending angle of the bending portion is 25 degrees or more and 45 degrees or less with respect to a tangent direction of the folded portion.

6. 4. The electronic component according to claim 1, wherein the length of the bent portion is 0.5 to 2 times the thickness of the bent portion.

7. 4. The electronic component according to claim 1, wherein the thickness of the folded portion is 1.5 to 3 times the diameter of the conductive wire.

8. a conductive wire; a conductive member having a bent terminal for holding an end of the conductor; The bent terminal is a base portion that supports the conductor; a folded portion that is continuous with one end side of the base portion and is bent and folded back; a bent portion that is continuous with the folded portion, is provided on a tip side opposite to the base portion, and is bent toward the base portion with respect to a tangential direction of the folded portion, the folded portion has a straight portion that is folded back from the base portion and is located on the base end side of the bent portion, and that extends so as to approach the base portion as it moves from the base end side toward the tip end side, an arrangement step of passing the conductor between the tip of the bent terminal and the base portion and arranging the conductor between the base portion and the folded portion or the bent portion; a crimping step of crimping the bent terminal after the arranging step to crush the conductor between the folded portion or the bent portion and the base portion; Equipped with a gap between the bent portion and the base portion during the placement step is larger than a line width of the conductive wire; After the crimping process, There is a gap between the tip of the bent portion and the base portion, a gap between the bent portion and the base portion is smaller than the width of the conductive wire; the conducting wire is sandwiched between the straight portion and the base portion, The method for holding an end of a conductor, wherein the straight portion is elastically biased against the conductor.

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