Electronic component

Abstract

To provide an electronic component capable of preventing flux from creeping up to a housing when solder plating is applied to a terminal member.SOLUTION: An electronic component 100 includes a circuit element 1, a housing 2, and a terminal member 3. The housing 2 accommodates at least a portion of the circuit element 1. The terminal member 3 is electrically connected to the circuit element 1, and protrudes from the housing 2 along a first direction D1. The terminal member 3 has multiple grooves 32 and protrusions 33. The multiple grooves 32 are formed along the first direction D1 from a tip 301 of the terminal member 3. The protrusions 33 are located between the multiple grooves 32 and the housing 2 in the first direction D1, and are formed along a second direction D2 that intersects with the first direction D1. The protrusions 33 contact an end 321 of each of the multiple grooves 32 on the housing 2 sides.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates generally to electronic components, and more particularly to electronic components comprising circuit elements. [Background technology]

[0002] Patent Document 1 discloses an electronic component including a circuit element, an exterior member in which the circuit element is disposed, a conductor plate portion connected to the circuit element and having one end embedded in the exterior member and the other end disposed outside the exterior member, and a terminal member having a solder-plated portion on the surface of the conductor plate portion that will be mounted on a printed circuit board. The conductor plate portion has multiple grooves extending from the other end toward the exterior member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2020-161667 Summary of the Invention [Problem to be solved by the invention]

[0004] In the electronic components described above, when solder plating is applied to the terminal members, there is a possibility that the flux may creep up onto the exterior member (casing).

[0005] An object of the present disclosure is to provide an electronic component that can prevent flux from creeping up to a housing when solder plating is applied to a terminal member. [Means for solving the problem]

[0006] An electronic component according to one aspect of the present disclosure includes a circuit element, a housing, and a terminal member. The housing accommodates at least a portion of the circuit element. The terminal member is electrically connected to the circuit element and protrudes from the housing in a first direction. The terminal member has a plurality of grooves and a protrusion. The grooves are formed from a tip of the terminal member along the first direction. The protrusion is located between the grooves and the housing in the first direction and is formed along a second direction intersecting the first direction. The protrusion contacts an end of each of the grooves on the housing side. [Effects of the Invention]

[0007] According to the present disclosure, there is an advantage that when solder plating is applied to a terminal member, it is possible to prevent flux from creeping up to the housing. [Brief explanation of the drawings]

[0008] [Figure 1] Fig. 1A is a perspective view of the electronic component according to the present embodiment, showing a state before a terminal member is bent along a housing, and Fig. 1B is a perspective view of the electronic component according to the present embodiment, showing a state after the terminal member is bent along the housing. [Figure 2] FIG. 2 is a plan view of the electronic component according to this embodiment, showing a state before the terminal members are bent along the housing. [Figure 3] Fig. 3A is a cross-sectional view of the electronic component taken along line AA in Fig. 2. Fig. 3B is a cross-sectional view of the electronic component taken along line BB in Fig. 2. [Figure 4] FIG. 4 is a plan view of an electronic component according to a first modified example of the present embodiment, showing a state before the terminal members are bent along the housing. [Figure 5] FIG. 5 is a plan view of an electronic component according to a second modified example of the present embodiment, showing a state before the terminal members are bent along the housing. DETAILED DESCRIPTION OF THE INVENTION

[0009] The embodiments and modifications described below are merely examples of the present disclosure. The present disclosure is not limited to the embodiments and modifications, and various modifications other than these embodiments and modifications are possible depending on the design, etc., as long as they do not deviate from the technical concept of the present disclosure. The drawings described in the following embodiments and modifications are schematic drawings, and the ratios of the sizes and thicknesses of the components in the drawings do not necessarily reflect the actual dimensional ratios.

[0010] (Embodiment) (1) Overview An overview of electronic component 100 according to this embodiment will be described below with reference to FIGS. 1A to 2. FIG.

[0011] 1A and 1B, electronic component 100 according to this embodiment includes a circuit element 1, a housing 2, and a terminal member 3. Housing 2 accommodates at least a portion of circuit element 1. Terminal member 3 is electrically connected to circuit element 1 and protrudes from housing 2 along a first direction D1 (see FIG. 2).

[0012] 2, the terminal member 3 has a plurality of grooves 32 and a protrusion 33. The plurality of grooves 32 are formed along a first direction D1 from a tip 301 of the terminal member 3. The protrusion 33 is located between the plurality of grooves 32 and the housing 2 in the first direction D1, and is formed along a second direction D2 that intersects with the first direction D1. The protrusion 33 contacts an end 321 of each of the plurality of grooves 32 on the housing 2 side.

[0013] As described above, in electronic component 100 of this embodiment, when solder plating is applied to terminal member 3 and flux creeps up from tip 301 of terminal member 3 toward housing 2 through multiple grooves 32, protrusions 33 have the effect of preventing the flux from reaching housing 2. In other words, electronic component 100 of this embodiment has the advantage of preventing flux from creeping up to housing 2 when solder plating is applied to terminal member 3. In this disclosure, "flux creeping up to housing 2" means that flux adheres to or penetrates into housing 2.

[0014] (2) Detailed configuration (2-1) Overall The detailed configuration of electronic component 100 of this embodiment will be described below with reference to FIGS. 1A to 3B. In the following description, the top, bottom, left, right, front, and back directions (top, bottom, left, right, front, and back in FIG. 1) are basically defined as top, bottom, left, right, front, and back directions when electronic component 100 is mounted on a substrate. The top, bottom, left, right, and front and back directions are perpendicular to each other. The orientation in which electronic component 100 is mounted on a substrate is not limited to the above orientations. The arrows indicating the various directions in the drawings are merely shown for explanatory purposes and do not have any physical substance.

[0015] As shown in FIGS. 1A, 1B, and 2, electronic component 100 includes a circuit element 1, a housing 2, and two terminal members 3.

[0016] The electronic component 100 is, for example, an inductor, a common noise filter, a varistor, etc. In the following embodiment, a case where the electronic component 100 is an inductor will be described as an example.

[0017] (2-2) Housing 2, the housing 2 accommodates a part of the circuit element 1 and a part of the terminal member 3. More specifically, the housing 2 accommodates a part of a main body member 11 and a part of a conductive member 12 (to be described later) of the circuit element 1, and a plurality of fixing portions 313 (to be described later) of the terminal member 3.

[0018] The housing 2 of this embodiment is made of a magnetic material. For example, the magnetic material is a mixture of magnetic powder and a binder. The magnetic powder is, for example, a metal powder obtained by atomizing an alloy of Fe, Si, Cr, or the like, and the binder is, for example, a thermosetting resin such as an epoxy resin or a silicone resin. The housing 2 is formed by embedding a portion of the main body member 11 and the conductive member 12 of the circuit element 1 in the mixture of the magnetic powder and binder, press-molding the mixture, and then curing the binder. In this case, the magnetic material is also disposed inside the main body member 11, so the housing 2 functions as the magnetic core of the main body member 11.

[0019] As shown in FIGS. 1A and 1B , the housing 2 of this embodiment has a rectangular parallelepiped shape having a top surface 21, a bottom surface 22, a pair of first side surfaces 23 and 24, and a pair of second side surfaces 25 and 26. The rectangular parallelepiped shape does not necessarily have to be a shape that conforms completely to a rectangular parallelepiped, as long as it conforms to a rectangular parallelepiped as a whole. The top surface 21 and the bottom surface 22 face each other in the up-down direction. The pair of first side surfaces 23 and 24 face each other in the left-right direction between the top surface 21 and the bottom surface 22. Similarly, the pair of second side surfaces 25 and 26 face each other in the front-to-rear direction between the top surface 21 and the bottom surface 22. That is, the top surface 21 is the upper surface of the housing 2, and the bottom surface 22 is the lower surface of the housing 2. The first side surface 23 is the left surface of the housing 2, and the first side surface 24 is the right surface of the housing 2. Similarly, the second side surface 25 is the front surface of the housing 2, and the second side surface 26 is the rear surface of the housing 2.

[0020] (2-3) Circuit elements The circuit element 1 has a main body member 11 and two conductive members 12. Since the electronic component 100 is an inductor, the main body member 11 is a coil formed by spirally winding a conductor such as a round wire or a rectangular conductor wire.

[0021] 2, each of the two conductive members 12 is a member in which both ends of the main body member 11 are drawn out to the outside of the housing 2. More specifically, each of the two conductive members 12 is a member in which both ends of the main body member 11 are drawn out from the housing 2 along a first direction D1 (details will be described later) in which the terminal members 3 protrude. Furthermore, each of the two conductive members 12 is electrically connected to the terminal members 3. That is, each of the two conductive members 12 is drawn out from the housing 2 along the first direction D1 and electrically connected to the terminal members 3.

[0022] Parts of the two conductive members 12 protrude from the housing 2 in the first direction D1 and are exposed to the outside of the housing 2. In this embodiment, the two conductive members 12 protrude from each of a pair of first side surfaces 23, 24 of the housing 2 in the first direction D1, as shown in Fig. 2. More specifically, one of the two conductive members 12 protrudes from the first side surface 23 in the first direction D1 (to the left), and the other conductive member 12 protrudes from the first side surface 24 in the first direction D1 (to the right).

[0023] The conductive member 12 is not connected to the terminal member 3 inside the housing 2, but is connected to the terminal member 3 outside the housing 2. More specifically, the conductive member 12 is housed in a recess 34 (see FIGS. 2 and 3B) of the terminal member 3, which will be described later, and is connected to the terminal member 3 by welding or the like.

[0024] In this embodiment, the two conductive members 12 correspond one-to-one to the two terminal members 3, and each of the two conductive members 12 protrudes along the corresponding terminal member 3. More specifically, of the two conductive members 12, the conductive member 12 protruding from the first side surface 23 corresponds to the terminal member 3 on the left, and the conductive member 12 protruding from the first side surface 24 corresponds to the terminal member 3 on the right.

[0025] (2-4) Terminal parts Each of the two terminal members 3 is a member used when electronic component 100 is electrically connected to an external circuit (not shown). That is, electronic component 100 is electrically connected to the external circuit via the two terminal members 3. Each of the two terminal members 3 is mounted on a printed circuit board (not shown) in a state where it is bent along housing 2 (see FIG. 1B), thereby being electrically connected to the external circuit.

[0026] The two terminal members 3 are aligned in the left-right direction. As shown in FIG. 2, each of the two terminal members 3 has a base 31. The base 31 is a plate member made of a metal material such as phosphor bronze or copper. That is, each of the two terminal members 3 is plate-shaped. The thickness of the base 31 is, for example, 0.2 mm.

[0027] The detailed structure of the base portion 31 of each of the two terminal members 3 before being bent along the housing 2 (see FIG. 2) will be described below.

[0028] The base 31 of each of the two terminal members 3 protrudes from the housing 2 in the first direction D1. More specifically, the base 31 of the left terminal member 3 of the two terminal members 3 protrudes (to the left) from the first side surface 23 along the first direction D1. On the other hand, the base 31 of the right terminal member 3 of the two terminal members 3 protrudes (to the right) from the first side surface 24 along the first direction D1.

[0029] The base 31 has a first portion 311 and a second portion 312. The first portion 311 has a tapered shape in which the width dimension (dimension in the front-rear direction) gradually decreases from a first end on the housing 2 side in the first direction D1 to a second end on the opposite side. The second portion 312 extends from the second end of the first portion 311 along the first direction D1. The width dimension of the second portion 312 is the same as the width dimension of the second end of the first portion 311. The extending tip of the second portion 312 is the tip 301 of each of the two terminal members 3. Hereinafter, the "tip 301 of the terminal member 3" will also be referred to as the "tip 301 of the base 31."

[0030] Two fixed portions 313 are provided at a first end of the first portion 311 on the housing 2 side in the first direction D1. The two fixed portions 313 are aligned in the front-to-rear direction. In this embodiment, the two fixed portions 313 are semicircular plate members.

[0031] In this embodiment, the two fixing portions 313 protrude in the first direction D1 from a first end of the first portion 311. More specifically, the two fixing portions 313 in the base 31 of the left terminal member 3 protrude rightward from the first end (right end) of the first portion 311. Similarly, the two fixing portions 313 in the base 31 of the right terminal member 3 protrude leftward from the first end (left end) of the first portion 311.

[0032] The base 31 of each of the two terminal members 3 is solder-plated before being bent along the housing 2, that is, while it protrudes in a direction perpendicular (left-right direction) to the first side faces 23, 24 (see FIG. 1A). As a result, the two terminal members 3 have improved solder wettability when mounted on a printed circuit board.

[0033] A method for solder plating the base 31 will be specifically described. The base 31 is immersed in a flux solution from the tip 301 side, so that the flux solution is applied to the base 31. Next, the base 31 to which the flux solution has been applied is immersed in molten solder from the tip 301 side, so that the solder plating is applied. Note that the flux solution referred to here is, for example, a mixture of a flux such as a rosin-based flux and a solvent such as isopropyl alcohol.

[0034] 1B, the solder-plated base 31 is bent along the housing 2. More specifically, the solder-plated base 31 of the left terminal member 3 is bent along the first side surface 23 and bottom surface 22 of the housing 2. Similarly, the solder-plated base 31 of the right terminal member 3 (not shown in FIG. 1B) is bent along the first side surface 24 and bottom surface 22 of the housing 2.

[0035] Each of the two terminal members 3 further has a plurality of grooves 32 and a protrusion 33, as shown in FIG.

[0036] The plurality of grooves 32 are formed on the predetermined surface 30 of the base 31 along the first direction D1 from the tip 301 of the base 31. In other words, the plurality of grooves 32 are formed on the predetermined surface 30 of the base 31 from the tip 301 of the base 31 toward the housing 2. The plurality of grooves 32 are aligned in a second direction D2 that intersects (here, is perpendicular to) the first direction D1. Note that the "predetermined surface 30 of the base 31" in this disclosure refers to the surface exposed to the outside of the housing 2 (the surface not in contact with the housing 2) when the base 31 is bent along the housing 2 (see FIG. 1B), i.e., the surface that is mounted on a printed circuit board. In other words, the "predetermined surface 30 of the base 31" refers to the top surface of the base 31 before it is bent along the housing 2, i.e., when it protrudes along a direction perpendicular (left-right direction) to the first side surfaces 23 and 24 (see FIG. 1A).

[0037] Since each of the two terminal members 3 has multiple grooves 32, when solder plating is applied to each of the two terminal members 3, flux can easily creep up from the tip 301 of the terminal member 3 toward the housing 2 through the multiple grooves 32.

[0038] The cross-sectional shape of each of the plurality of grooves 32 is rectangular, as shown in Fig. 3B. Note that the cross-sectional shape of each of the plurality of grooves 32 is not limited to a rectangular shape and may be, for example, a triangular shape, a semicircular shape, or a U-shape. As an example, the plurality of grooves 32 are formed by cutting using a blade, press working using a mold, cutting using a laser beam, or the like.

[0039] The depth X4 (see FIG. 3B) of the plurality of grooves 32 is preferably 0.01 mm or more and 0.1 mm or less, for example, 0.02 mm. In the present disclosure, the "depth X4 of the plurality of grooves 32" refers to the dimension of the plurality of grooves 32 in the vertical direction of the predetermined surface 30 of the base 31, and more specifically, the distance from the predetermined surface 30 of the base 31 to the bottom surfaces of the plurality of grooves 32.

[0040] Similarly, the width of the plurality of grooves 32 (see FIG. 2) is preferably 0.01 mm or more and 0.1 mm or less, for example, 0.02 mm. Furthermore, the interval between two adjacent grooves 32 in the second direction D2 is preferably 0.1 mm or more and 0.5 mm or less, for example, 0.2 mm. In this disclosure, the "width of the plurality of grooves 32" refers to the dimension of the plurality of grooves 32 in the second direction D2. Note that in FIGS. 2, 3A, and 3B, the number of grooves 32 is reduced and the width of the plurality of grooves 32 and the interval between two adjacent grooves 32 are changed for ease of viewing.

[0041] 2, the protrusions 33 are located on the predetermined surface 30 of the base 31 between the housing 2 and the plurality of grooves 32 in the first direction D1, and are formed along a second direction D2 that intersects (here, is perpendicular to) the first direction D1. As shown in FIG. 3A, the protrusions 33 are portions that protrude from the predetermined surface 30 of the base 31 along the thickness direction of the base 31. More specifically, the protrusions 33 are portions that protrude upward from the predetermined surface 30 of the base 31.

[0042] By providing each of the two terminal members 3 with the protrusions 33, when solder plating is applied to the terminal members 3 and flux creeps up from the tip 301 of the terminal members 3 toward the housing 2 through the multiple grooves 32, the flux that reaches the protrusions 33 is blocked by the protrusions 33 and does not reach the housing 2. In other words, by providing each of the two terminal members 3 with the protrusions 33, when solder plating is applied to the terminal members 3 and flux creeps up from the tip 301 of the terminal members 3 toward the housing 2 through the multiple grooves 32, the protrusions 33 have the effect of preventing the flux from reaching the housing 2. In other words, the electronic component 100 of this embodiment has the advantage of being able to prevent the flux from creeping up to the housing 2 when solder plating is applied to the terminal members 3.

[0043] 3A, the cross-sectional shape of the protrusion 33 is rectangular. Note that the cross-sectional shape of each of the plurality of grooves 32 is not limited to a rectangular shape and may be, for example, a triangular shape or a semicircular shape. As an example, the protrusion 33 is formed by press working using a mold.

[0044] 2, the protrusion 33 contacts the ends 321 of the plurality of grooves 32 on the housing 2 side. In the left terminal member 3, the protrusion 33 contacts the ends 321 of the plurality of grooves 32 on the housing 2 side (right side). Similarly, in the right terminal member 3, the protrusion 33 contacts the ends 321 of the plurality of grooves 32 on the housing 2 side (left side).

[0045] The protrusion 33 is formed on the predetermined surface 30 of the base 31 so that the distance X1 (see FIG. 2) between the housing 2 and the protrusion 33 in the first direction D1 is at least twice the thickness X2 (see FIG. 3A) of the terminal member 3 (base 31). In other words, the distance X1 between the housing 2 and the protrusion 33 in the first direction D1 is at least twice the thickness X2 of the terminal member 3 (base 31). As an example, assuming that the thickness of the base 31 is 0.2 mm, the protrusion 33 is formed so that the distance X1 between the housing 2 and the protrusion 33 in the first direction D1 is at least 0.4 mm. The above configuration has the advantage that the bending position Y1 (see FIG. 2) of each of the two terminal members 3 when bent along the housing 2 can be prevented from overlapping with the protrusion 33. Note that the "distance X1 between the housing 2 and the protrusion 33 in the first direction D1" referred to here is the distance between the first side surfaces 23, 24 of the housing 2 and the side surface of the protrusion 33 on the housing 2 side in the first direction D1. That is, the "distance X1 between the housing 2 and the protrusion 33 in the first direction D1" for the left terminal member 3 is the distance between the first side surface 23 of the housing 2 and the right side surface of the protrusion 33 in the first direction D1. Similarly, the "distance X1 between the housing 2 and the protrusion 33 in the first direction D1" for the right terminal member 3 is the distance between the first side surface 24 of the housing 2 and the left side surface of the protrusion 33 in the first direction D1. Also, the dotted line Y1 shown in FIG. 2 is merely shown for the purpose of explanation and does not have any substance.

[0046] The protrusions 33 are in contact with both ends of the terminal member 3 (base 31) in the second direction D2. More specifically, the protrusions 33 are in contact with both ends of the first portion 311 of the base 31 in the second direction D2. Specifically, a first end (front end) of the protrusions 33 in the second direction D2 is in contact with a third end (front end) of the first portion 311 of the base 31 in the second direction D2, and a second end (rear end) of the protrusions 33 in the second direction D2 is in contact with a fourth end (rear end) of the first portion 311 of the base 31 in the second direction D2. The protrusions 33 of this embodiment are formed across both ends of the first portion 311 of the base 31 in the second direction D2. This configuration has the effect of preventing flux from creeping around the protrusions 33 and up to the housing 2 when solder plating is applied to the terminal member 3. That is, there is an advantage that when solder plating is applied to the terminal members 3, the flux can be further prevented from creeping up to the housing 2.

[0047] The height X3 of the protrusion 33 (see FIG. 3A) is greater than the depth X4 of the plurality of grooves 32 (see FIG. 3B). This configuration has the effect of preventing flux from climbing over the protrusion 33 and creeping up to the housing 2 when solder plating is applied to the terminal member 3. That is, there is an advantage that the flux can be further prevented from creeping up to the housing 2 when solder plating is applied to the terminal member 3. Note that the "height X3 of the protrusion 33" referred to in the present disclosure refers to the dimension of the protrusion 33 in the direction perpendicular to the predetermined surface 30 of the base 31, and more specifically, refers to the distance from the predetermined surface 30 of the base 31 to the top surface of the protrusion 33.

[0048] In this embodiment, the height X3 of the convex portion 33 is at least twice the depth X4 of the plurality of groove portions 32. This configuration has the advantage of more reliably preventing flux from creeping up to the housing 2 when solder plating is applied to the terminal member 3.

[0049] More specifically, the height X3 of the protrusion 33 is desirably 0.05 mm or more and 0.2 mm or less. With this configuration, the height X3 of the protrusion 33 is greater than the thickness of the flux that would be expected if the flux were to creep up from the tip 301 of the terminal member 3 toward the housing 2 through the multiple grooves 32 when solder plating is applied to the terminal member 3. This has the advantage of making it easier to prevent the flux from creeping up to the housing 2 when solder plating is applied to the terminal member 3.

[0050] The width of the protrusion 33 (see FIG. 2) is preferably 0.01 mm or more and 0.1 mm or less, for example, 0.05 mm. In the present disclosure, the "width of the protrusion 33" refers to the dimension of the protrusion 33 in the first direction D1.

[0051] 2, the protrusion 33 is divided into a first protrusion 331 and a second protrusion 332. The conductive member 12 of the circuit element 1 is located between the first protrusion 331 and the second protrusion 332 in the second direction D2. In other words, the first protrusion 331 and the second protrusion 332 are formed at positions facing each other across the conductive member 12 in the second direction D2. This configuration has the advantage that, even when each of the two conductive members 12 protrudes along the terminal members 3, it is possible to prevent flux from creeping up to the housing 2 when solder plating is applied to the terminal members 3.

[0052] In this embodiment, as shown in FIGS. 2 and 3B , each of the two terminal members 3 further has a recess 34 that is provided between the first protrusion 331 and the second protrusion 332 along the first direction D1 and that accommodates a corresponding one of the two conductive members 12. More specifically, the recess 34 in each of the two terminal members 3 accommodates the conductive member 12 of the two conductive members 12 that corresponds to the terminal member 3 (i.e., the conductive member 12 that protrudes along the terminal member 3). More specifically, the recess 34 in the left terminal member 3 accommodates the conductive member 12 of the two conductive members 12 that protrudes from the first side surface 23. Similarly, the recess 34 in the right terminal member 3 accommodates the conductive member 12 of the two conductive members 12 that protrudes from the first side surface 24. The recess 34 is provided in a predetermined surface 30 of the base 31. In this disclosure, "the recess 34 accommodates the conductive member 12" includes both the case where the recess 34 accommodates a portion of the conductive member 12 (e.g., the lower portion of the conductive member 12) (see FIG. 3B) and the case where the recess 34 accommodates the entire conductive member 12 (not shown).

[0053] The first protrusion 331 and the second protrusion 332 are in contact with the recess 34. More specifically, the rear end of the first protrusion 331 is in contact with the front end of the recess 34, and the front end of the second protrusion 332 is in contact with the rear end of the recess 34. The above configuration has the advantage that even when each of the two conductive members 12 protrudes along the terminal member 3, it is possible to further prevent flux from creeping up to the housing 2 when solder plating is applied to the terminal member 3.

[0054] 3B, the cross-sectional shape of the recess 34 is rectangular. Note that the cross-sectional shape of the recess 34 is not limited to a rectangular shape and may be, for example, a triangular shape, a semicircular shape, or a U-shape. As an example, the plurality of grooves 32 are formed by press working using a mold or the like.

[0055] In this embodiment, the depth of the recess 34 is greater (deeper) than the depth X4 of the plurality of grooves 32, and the width of the recess 34 is greater than the width of the plurality of grooves 32. Note that the depth and width of the recess 34 may be any dimensions as long as they are capable of accommodating the conductive member 12.

[0056] (3) Effects In electronic component 100 according to this embodiment, protrusion 33 is located between multiple grooves 32 and housing 2 in first direction D1, and is formed along second direction D2 that intersects with first direction D1. Furthermore, protrusion 33 contacts end 321 of each of multiple grooves 32 on the housing 2 side. This provides an advantage of electronic component 100 according to this embodiment in that it is possible to prevent flux from creeping up to housing 2 when solder plating is applied to terminal member 3. Another advantage is that it is possible to prevent terminal member 3 from bending when viewed from first direction D1 when terminal member 3 is bent along housing 2.

[0057] In electronic component 100 according to this embodiment, protrusions 33 contact both ends of terminal member 3 (base 31) in second direction D2. This has the effect of preventing flux from creeping around protrusions 33 and up to housing 2 when solder plating is applied to terminal member 3. In other words, there is an advantage in that it is possible to further prevent flux from creeping up to housing 2 when solder plating is applied to terminal member 3.

[0058] In electronic component 100 according to this embodiment, height X3 (see FIG. 3A) of protrusion 33 is greater than depth X4 (see FIG. 3B) of multiple grooves 32. This has the effect of preventing flux from climbing over protrusion 33 and creeping up to housing 2 when solder plating is applied to terminal member 3. That is, there is an advantage in that it is possible to further prevent flux from creeping up to housing 2 when solder plating is applied to terminal member 3.

[0059] In electronic component 100 according to this embodiment, height X3 of protrusion 33 is at least twice the depth X4 of multiple grooves 32. This has the advantage of more reliably preventing flux from creeping up to housing 2 when solder plating is applied to terminal member 3.

[0060] In electronic component 100 according to this embodiment, height X3 of protrusion 33 is desirably 0.05 mm or greater. This makes height X3 of protrusion 33 greater than the thickness of flux that would be expected if the flux were to creep up from tip 301 of terminal member 3 toward housing 2 through multiple grooves 32. This has the advantage of making it easier to prevent flux from creeping up to housing 2 when solder plating is applied to terminal member 3.

[0061] In electronic component 100 according to this embodiment, distance X1 between housing 2 and protrusion 33 in first direction D1 is at least twice the thickness X2 of terminal member 3. This has the advantage of preventing folding position Y1 (see FIG. 2 ) of each of two terminal members 3 from overlapping with protrusion 33 when each is folded along housing 2.

[0062] In electronic component 100 according to this embodiment, protrusion 33 is divided into first protrusion 331 and second protrusion 332, and conductive member 12 of circuit element 1 is located between first protrusion 331 and second protrusion 332 in second direction D2. This has the advantage that even if each of two conductive members 12 protrudes along terminal member 3, it is possible to prevent flux from creeping up to housing 2 when solder plating is applied to terminal member 3.

[0063] In electronic component 100 according to this embodiment, first convex portion 331 and second convex portion 332 are in contact with concave portion 34 that accommodates conductive member 12. This has the advantage that even if each of two conductive members 12 protrudes along terminal member 3, it is possible to further prevent flux from creeping up to housing 2 when solder plating is applied to terminal member 3.

[0064] (4) Variations The above-described embodiment is merely one of various embodiments of the present disclosure. The above-described embodiment can be modified in various ways depending on the design, etc., as long as the object of the present disclosure can be achieved. The following modifications may be implemented in appropriate combination. The same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[0065] (4-1) First Modification In electronic component 100 of the above-described embodiment, two conductive members 12 of circuit element 1 are members in which both ends of main body member 11 are drawn out to the outside of housing 2. However, as shown in FIG. 4 , in electronic component 100A of the first modification, two conductive members 12A of circuit element 1 may be members in which both ends of main body member 11 do not draw out to the outside of housing 2 but extend inside housing 2.

[0066] As shown in FIG. 4, electronic component 100A of the first modified example includes circuit element 1A, housing 2, and two terminal members 3A.

[0067] The circuit element 1A has a main body member 11 and two conductive members 12A. Each of the two conductive members 12A is a member in which both ends of the main body member 11 do not extend to the outside of the housing 2 but extend within the housing 2. The two conductive members 12A correspond one-to-one to the two terminal members 3A, and each of the two conductive members 12A extends toward one of two fixing portions 313A (described later) included in the corresponding terminal member 3A. As an example, each of the two conductive members 12A is electrically connected to one of the fixing portions 313A by welding or the like.

[0068] More specifically, of the two conductive members 12, the conductive member 12 extending to the left corresponds to the left terminal member 3, and extends toward the rear fixing portion 313A of two fixing portions 313A (described later) included in the left terminal member 3. Similarly, of the two conductive members 12, the conductive member 12 extending to the right corresponds to the right terminal member 3, and extends toward the front fixing portion 313A of two fixing portions 313A (described later) included in the right terminal member 3.

[0069] The two terminal members 3A are aligned in the left-right direction. The two terminal members 3A have bases 31A. The bases 31A of each of the two terminal members 3A protrude from the housing 2 in the first direction D1. The bases 31A of the left terminal member 3A of the two terminal members 3A protrude (to the left) from the first side surface 23 along the first direction D1. Similarly, the bases 31A of the right terminal member 3A of the two terminal members 3A protrude (to the right) from the first side surface 24 along the first direction D1. Hereinafter, the configuration of the bases 31A, which is the same as the bases 31 in the above-described embodiment, will be omitted as appropriate.

[0070] The base 31A is a rectangular plate member made of a metal material such as phosphor bronze or copper. Two fixed portions 313A are provided at the end of the base 31A facing the housing 2 in the first direction D1. The two fixed portions 313A are embedded and fixed in the housing 2. The two fixed portions 313A are aligned in the front-to-rear direction. The two fixed portions 313A are rectangular plate members.

[0071] The two fixing portions 313A protrude along the first direction D1 from the end of the base 31A facing the housing 2 in the first direction D1. More specifically, the two fixing portions 313A on the base 31A of the left terminal member 3A protrude rightward from the end (right end) of the base 31A facing the housing 2 in the first direction D1. Similarly, the two fixing portions 313 on the base 31A of the right terminal member 3A protrude leftward from the end (left end) of the base 31A facing the housing 2 in the first direction D1.

[0072] Each of the two terminal members 3A further has a plurality of grooves 32 and a protrusion 33A. Hereinafter, the description of the configuration of the protrusion 33A, which is the same as the protrusion 33 in the above embodiment, will be omitted as appropriate.

[0073] The protrusion 33A of the first modified example is not divided, unlike the protrusion 33 of the above-described embodiment. That is, in the base 31A of the first modified example, a single undivided protrusion 33A is formed across both ends of the base 31 in the second direction D2.

[0074] (4-2) Second Modification In electronic component 100 of the above-described embodiment, two conductive members 12 of circuit element 1 are members in which both ends of main body member 11 are drawn out to the outside of housing 2. However, as shown in Fig. 5 , in electronic component 100B of the second modification, two conductive members 12B of circuit element 1 may be members in which both ends of main body member 11 are not drawn out to the outside of housing 2 but are extended inside housing 2.

[0075] Furthermore, in electronic component 100 of the above-described embodiment, two fixing portions 313 are provided at the end of base 31 on the housing 2 side in first direction D1. However, in electronic component 100B of a second modification, as shown in Fig. 5 , the portion extending from the end of base 31 on the housing 2 side in first direction D1 toward housing 2 may be fixing portion 313B.

[0076] As shown in FIG. 5, electronic component 100B of the second modified example includes circuit element 1B, housing 2, and two terminal members 3B.

[0077] The circuit element 1B includes a main body member 11 and two conductive members 12B. Each of the two conductive members 12B is a member in which both ends of the main body member 11 do not extend to the outside of the housing 2 but extend within the housing 2. The two conductive members 12B correspond one-to-one to the two terminal members 3B, and each of the two conductive members 12B extends toward a fixing portion 313B (described later) of the corresponding terminal member 3B. That is, each of the two conductive members 12B extends along the first direction D1. As an example, each of the two conductive members 12B is electrically connected to the fixing portion 313B by welding or the like.

[0078] The two terminal members 3B are aligned in the left-right direction. The two terminal members 3B have bases 31B. The bases 31B of each of the two terminal members 3B protrude from the housing 2 in the first direction D1. The bases 31B of the left terminal member 3B of the two terminal members 3B protrude (to the left) from the first side surface 23 along the first direction D1. Similarly, the bases 31B of the right terminal member 3B of the two terminal members 3B protrude (to the right) from the first side surface 24 along the first direction D1. Hereinafter, the configuration of the bases 31B, which is the same as the bases 31 in the above-described embodiment, will be omitted as appropriate.

[0079] The base 31B is a rectangular plate member made of a metal material such as phosphor bronze or copper. A fixed portion 313B is provided at the end of the base 31B facing the housing 2 in the first direction D1. The fixed portion 313B is embedded in and fixed to the housing 2. The fixed portion 313B is a portion of the end of the base 31B facing the housing 2 in the first direction D1 that extends toward the housing 2.

[0080] More specifically, the two fixing portions 313B on the base 31B of the left terminal member 3B are portions where the end (right end) of the base 31B on the housing 2 side in the first direction D1 of the base 31B extends rightward. Similarly, the two fixing portions 313B on the base 31B of the right terminal member 3B are portions where the end (left end) of the base 31B on the housing 2 side in the first direction D1 of the base 31B extends leftward.

[0081] Each of the two terminal members 3B further has a plurality of grooves 32 and a protrusion 33B. Hereinafter, the description of the configuration of the protrusion 33B, which is the same as the protrusion 33 in the above embodiment, will be omitted as appropriate.

[0082] Unlike the protrusion 33 of the above-described embodiment, the protrusion 33B of the second modified example is not divided. That is, in the base 31B of the second modified example, a single undivided protrusion 33B is formed across both ends of the base 31 in the second direction D2.

[0083] (4-3) Other Modifications Other variations of the above-described embodiment are listed below. The following variations may be realized in appropriate combination.

[0084] Each of the two terminal members 3 may have one or more protrusions different from the protrusion 33. The one or more protrusions are formed between the protrusion 33 and the housing 2 in the first direction D1. Like the protrusion 33, the one or more protrusions are portions that protrude from the predetermined surface 30 of the base 31 along the thickness direction of the base 31. It is desirable that the at least one protrusion be in contact with both ends of the terminal member 3 (base 31) in the second direction D2. The above configuration has the advantage of being able to further prevent flux from creeping up to the housing 2 when solder plating is applied to the terminal member 3.

[0085] (summary) The electronic component (100) of the first aspect includes a circuit element (1), a housing (2), and a terminal member (3). The housing (2) accommodates at least a portion of the circuit element (1). The terminal member (3) is electrically connected to the circuit element (1) and protrudes from the housing (2) in a first direction (D1). The terminal member (3) has a plurality of grooves (32) and a protrusion (33). The plurality of grooves (32) are formed from a tip (301) of the terminal member (3) along the first direction (D1). The protrusion (33) is located between the plurality of grooves (32) and the housing (2) in the first direction (D1) and is formed along a second direction (D2) intersecting the first direction (D1). The protrusion (33) contacts an end (321) of each of the plurality of grooves (32) on the housing (2) side.

[0086] This embodiment has the advantage that when solder plating is applied to the terminal member (3), it is possible to prevent flux from creeping up to the housing (2).

[0087] In the electronic component (100) of the second embodiment, in the first embodiment, the protrusions (33) are in contact with both ends of the terminal member (3) in the second direction (D2).

[0088] This embodiment has the advantage that when solder plating is applied to the terminal member (3), it is possible to further prevent the flux from creeping up to the housing (2).

[0089] In the electronic component (100) of the third embodiment, in the first or second embodiment, the height (X3) of the convex portion (33) is greater than the depth (X4) of the plurality of groove portions (32).

[0090] This embodiment has the advantage that when solder plating is applied to the terminal member (3), it is possible to more reliably prevent the flux from creeping up to the housing (2).

[0091] In the electronic component (100) of the fourth aspect, in any one of the first to third aspects, the height (X3) of the convex portion (33) is at least twice the depth (X4) of the plurality of groove portions (32).

[0092] This embodiment has the advantage that when solder plating is applied to the terminal member (3), it is possible to more reliably prevent the flux from creeping up to the housing (2).

[0093] In the electronic component (100) of the fifth aspect, in any one of the first to fourth aspects, the height (X3) of the convex portion (33) is 0.05 mm or more.

[0094] This embodiment has the advantage that it is easy to prevent flux from creeping up to the housing (2) when solder plating is applied to the terminal member (3).

[0095] In the electronic component (100) of the sixth aspect, in any one of the first to fifth aspects, the terminal member (3) is plate-shaped. The distance (X1) between the housing (2) and the protrusion (33) in the first direction (D1) is at least twice the thickness (X2) of the terminal member (3).

[0096] This embodiment has the advantage that the bending position (Y1) of the terminal member (3) when bent along the housing (2) can be prevented from overlapping with the protrusion (33).

[0097] In the electronic component (100) of the seventh aspect, in any one of the first to sixth aspects, the circuit element (1) includes a conductive member (12) that is drawn out from the housing (2) along the first direction (D1) and electrically connected to the terminal member (3). The protrusion (33) is divided into a first protrusion (331) and a second protrusion (332). The conductive member (12) is located between the first protrusion (331) and the second protrusion (332) in the second direction (D2).

[0098] According to this embodiment, even if the conductive member (12) protrudes along the terminal member (3), there is an advantage in that when solder plating is applied to the terminal member (3), it is possible to prevent the flux from creeping up to the housing (2).

[0099] In the electronic component (100) of the eighth aspect, in the seventh aspect, the terminal member (3) further includes a recess provided along the first direction (D1) between the first protrusion (331) and the second protrusion (332) to accommodate the conductive member (12). The first protrusion (331) and the second protrusion (332) are in contact with the recess.

[0100] According to this embodiment, even if the conductive member (12) protrudes along the terminal member (3), there is an advantage that the flux can be more effectively prevented from creeping up to the housing (2) when solder plating is applied to the terminal member (3). [Explanation of symbols]

[0101] 100 Electronic Components 1 Circuit elements 2. Case 3 Terminal material 301 Tip 32 Groove 33 Convex part 331 First convex part 332 Second convex part 12 Conductive material 34 Recess 321 End D1 1st direction D2 2nd direction X1 distance X2 Terminal material thickness X3 Height of the convex part X4 Groove depth

Claims

1. a circuit element; a housing that accommodates at least a portion of the circuit element; a terminal member electrically connected to the circuit element and protruding from the housing in a first direction, The terminal member is a plurality of grooves formed along the first direction from the tip of the terminal member; a protrusion located between the plurality of grooves and the housing in the first direction and formed along a second direction intersecting the first direction, the protrusion contacts an end of each of the plurality of grooves on the housing side; Electronic components.

2. The protrusions are in contact with both ends of the terminal member in the second direction. The electronic component according to claim 1 .

3. The height of the protrusion is greater than the depth of the plurality of grooves. The electronic component according to claim 1 .

4. The height of the convex portion is at least twice the depth of the plurality of groove portions. The electronic component according to claim 3 .

5. The height of the convex portion is 0.05 mm or more. The electronic component according to claim 1 .

6. The terminal member is plate-shaped, a distance between the housing and the protrusion in the first direction is equal to or greater than twice the thickness of the terminal member; The electronic component according to claim 1 .

7. the circuit element includes a conductive member that is drawn out from the housing along the first direction and is electrically connected to the terminal member, The convex portion is divided into a first convex portion and a second convex portion, the conductive member is located between the first convex portion and the second convex portion in the second direction. The electronic component according to any one of claims 1 to 6.

8. the terminal member further includes a recess provided between the first protrusion and the second protrusion along the first direction and configured to accommodate the conductive member; the first protrusion and the second protrusion are in contact with the recess. The electronic component according to claim 7.

Images