Electronic components and their holders

Abstract

To enable surface-mounting of an electronic component on a circuit board without soldering.SOLUTION: A component holder 20 made of synthetic resin to be mounted on a sealing portion side of an exterior case of a component main body in which a pair of lead terminals is pulled out in the same direction from a sealing portion of the exterior case in which a component element is incorporated includes a pedestal portion 210 having a pair of lead wire insertion holes through which externally lead-out lead wires of the lead terminals are inserted. In the component holder provided with a first terminal portion 201 electrically connected to one of the externally lead-out lead wires of the lead terminals and a second terminal portion 202 electrically connected to the other externally lead-out lead wire of the lead terminals are provided on the bottom surface side of the pedestal portion 210, each of the first terminal portion 201 and the second terminal portion 202 is provided with two press-fit terminals 231 (231a, 231b; 231c, 231d).SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to an electronic component and a component holder therefor, and more particularly to an electronic component having press-fit terminals and a component holder therefor. [Background technology]

[0002] In the case of same-lead-direction electronic components (also known as discrete type) in which a pair of lead terminals extend in the same direction from the sealing part of an outer casing in which a component element is built, such as aluminum electrolytic capacitors, a synthetic resin base plate having a pair of lead insertion holes is attached to the sealing part of the outer casing so that the lead terminals that extend through the lead insertion holes to the bottom side of the base plate are bent in directions away from each other to form a chip type, in order to enable surface mounting on a circuit board (see, for example, Patent Documents 1 and 2).

[0003] Normally, these types of chip-type electronic components are soldered to circuit boards using the reflow soldering method, but this requires a lot of equipment and maintenance costs, and strict control of the solder bath temperature and solder quality is required, which can easily lead to soldering defects. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2017-163098 A [Patent Document 2] JP 2018-22855 A Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to make it possible to surface mount electronic components on a circuit board without using soldering. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention includes several characteristic aspects. First, a first aspect is an electronic component including a component main body having a pair of lead terminals extending in the same direction from a sealing portion of an exterior case in which a component element is built, and a component holder made of synthetic resin attached to the sealing portion side of the exterior case, the component holder having a base portion having a pair of lead wire insertion holes through which the outgoing lead wires of the lead terminals are inserted, and a first terminal portion electrically connected to one of the outgoing lead wires of the lead terminals and a second terminal portion electrically connected to the other outgoing lead wire of the lead terminal are provided on a bottom surface side of the base portion, the first terminal portion electrically connected to one of the outgoing lead wires of the lead terminals and the second terminal portion electrically connected to the other outgoing lead wire of the lead terminal, The first terminal portion includes two first press-fit terminals, and the second terminal portion includes two second press-fit terminals. a first plane including the two first press-fit terminals and a second plane including the two second press-fit terminals are parallel to each other, a distance between the first press-fit terminals is d1, a distance between the second press-fit terminals is d2, and d1≠d2 is satisfied. It is characterized by the following.

[0007] The second aspect is an electronic component comprising: a component body having a pair of lead terminals extending in the same direction from a sealing portion of an exterior case in which a component element is built in; and a synthetic resin component holder attached to the sealing portion side of the exterior case, the component holder having a base portion having a pair of lead wire insertion holes through which the outgoing lead wires of the lead terminals are inserted, the base portion having a first terminal portion electrically connected to one of the outgoing lead wires of the lead terminals and a second terminal portion electrically connected to the other outgoing lead wire of the lead terminal, the outgoing lead wires of each lead terminal of the component body being passed through the lead wire insertion holes and electrically connected to each of the terminal portions, The first terminal portion includes two first press-fit terminals, and the second terminal portion includes two second press-fit terminals, a first plane including the two first press-fit terminals and a second plane including the two second press-fit terminals are non-parallel, a distance between the first press-fit terminals is d1, a distance between the second press-fit terminals is d2, and d1≠d2 is satisfied. It is characterized by the following.

[0008] The third aspect is characterized in that the absolute value of the difference between the distance d1 and the distance d2, |d1-d2|, is 1 mm or more.

[0010] No. 4 This aspect is characterized in that the two first press-fit terminals are electrically connected by a first relay terminal plate and the two second press-fit terminals are electrically connected by a second relay terminal plate, one of the external lead wires of the lead terminals is electrically connected to the first relay terminal plate and the other of the external lead wires of the lead terminal is electrically connected to the second relay terminal plate.

[0011] No. 5The embodiment is characterized in that a component holding portion into which the outer case is fitted is provided on the upper surface side of the base portion.

[0012] No. 6 In this aspect, the component holding portion includes at least two holding arms arranged opposite to each other and extending along the outer surface of the outer case.

[0013] No. 7 This aspect is characterized in that the holding arm on the first terminal side and the holding arm on the second terminal side have different heights.

[0014] No. 8 This aspect is characterized in that the base portion is approximately rectangular in plan view, the holding arms are erected at the four corners of the base portion, and a reinforcing plate is integrally formed between the holding arms.

[0015] The present invention also includes a component holder. 9 The embodiment of the present invention is a component holder made of synthetic resin, which is attached to a component body having a pair of lead terminals extending in the same direction from a sealing portion of an outer case in which a component element is built, on the side of the sealing portion of the outer case, a component holder comprising a base having a pair of lead wire insertion holes through which the outgoing lead wires of the lead terminals are inserted, a first terminal portion electrically connected to one of the outgoing lead wires of the lead terminals and a second terminal portion electrically connected to the other of the outgoing lead wires of the lead terminals are provided on a bottom surface side of the base, and the outgoing lead wires of each lead terminal of the component body are passed through the lead wire insertion holes and electrically connected to each of the terminal portions, The first terminal portion includes two first press-fit terminals, and the second terminal portion includes two second press-fit terminals. a first plane including the two first press-fit terminals and a second plane including the two second press-fit terminals are parallel to each other, a distance between the first press-fit terminals is d1, a distance between the second press-fit terminals is d2, and d1≠d2 is satisfied. It is characterized by the following.

[0016] A tenth aspect is A component holder made of synthetic resin is attached to a component body on the side of a sealing portion of an outer case in which a component element is built and in which a pair of lead terminals are drawn out in the same direction from the sealing portion of the outer case, a component holder comprising a base having a pair of lead wire insertion holes through which the outgoing lead wires of the lead terminals are inserted, a first terminal portion electrically connected to one of the outgoing lead wires of the lead terminals and a second terminal portion electrically connected to the other of the outgoing lead wires of the lead terminals are provided on a bottom surface side of the base, and the outgoing lead wires of each lead terminal of the component body are passed through the lead wire insertion holes and electrically connected to each of the terminal portions, The first terminal portion includes two first press-fit terminals, and the second terminal portion includes two second press-fit terminals, a first plane including the two first press-fit terminals and a second plane including the two second press-fit terminals are non-parallel, a distance between the first press-fit terminals is d1, a distance between the second press-fit terminals is d2, and d1≠d2 is satisfied. It is characterized by the following.

[0017] The eleventh aspect is ,the above It is characterized in that the absolute value of the difference between the distance d1 and the distance d2, |d1-d2|, is 1 mm or more.

[0019] No. 12 The aspect of ,above The two first press-fit terminals are electrically connected by a first relay terminal plate and the two second press-fit terminals are electrically connected by a second relay terminal plate, one of the lead terminals is electrically connected to the first relay terminal plate and the other of the lead terminals is electrically connected to the second relay terminal plate.

[0020] No. 13 The aspect of ,above The base portion is characterized in that a component holding portion is provided on the upper surface side thereof, into which the exterior case is fitted.

[0021] No. 14 The aspect of ,above The component holding portion is characterized by including at least two holding arms arranged opposite to each other and extending along the outer surface of the outer case.

[0022] No. 15 The aspect of ,above The holding arm on the first terminal side and the holding arm on the second terminal side are characterized by having different heights.

[0023] No. 16 The aspect of ,above The base portion has a substantially rectangular shape in a plan view, the holding arms are erected at the four corners of the base portion, and a reinforcing plate is integrally formed between the holding arms. Effect of the Invention

[0024] According to the present invention, by providing the press-fit terminals, the electronic components can be surface-mounted on the circuit board without soldering. [Brief description of the drawings]

[0025] [Figure 1] 1A is a plan view, FIG. 1B is a left side view, FIG. 1C is a right side view, and FIG. [Diagram 2] Cross-sectional view taken along line AA in Figure 1(a). [Diagram 3] An enlarged view of circled area B in Figure 2. [Figure 4] (a) Enlarged view of the circled area C in Figure 1(d), and (b) its cross-sectional view along line DD. [Figure 5a] FIG. 4 is a plan view of a component holder attached to a component body of the electronic component. [Figure 5b] FIG. [Figure 5c] FIG. [Figure 5d] FIG. [Figure 5e] 5b is a cross-sectional view of the component holder taken along line EE in FIG. 5a. [Figure 6] FIG. 2A is a perspective view of the component holder as seen from the top side, and FIG. [Figure 7] 13A is a perspective view of a modified example of the component holder as viewed from the top side, and FIG. 13B is a perspective view of a modified example of the component holder as viewed from the bottom side. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Next, several embodiments of the present invention will be described with reference to Figs. 1 to 7, but the present invention is not limited to these embodiments.

[0027] First, with reference to FIGS. 1 to 3, an electronic component 1 according to the present invention includes a component body 10 and a component holder 20 attached to the component body 10. As shown in FIG.

[0028] The component body 10 includes an exterior case 11. If the component body 10 is, for example, an aluminum electrolytic capacitor, the exterior case 11 is an aluminum tubular body (in many cases, a cylindrical body) with one end open, and a capacitor element 12 is housed within the exterior case 11 as a component element.

[0029] Although not shown in detail, capacitor element 12 is produced by spirally winding an anode foil and a cathode foil, both made of aluminum, with an electrically insulating separator between them, and a lead terminal 13a is attached to the anode foil, and similarly, a lead terminal 13b is attached to the cathode foil.

[0030] Tab terminals are used for the lead terminals 13a and 13b, and each of them is provided with an external lead wire 131a or 131b. Since the lead terminals 13a and 13b have the same configuration, when there is no need to distinguish between them, they are collectively referred to as the lead terminal 13. Furthermore, when there is no need to distinguish between the external lead wires 131a and 131b, they are collectively referred to as the external lead wire 131.

[0031] 2, the opening of the exterior case 11 is airtightly closed by a sealing body 14. Typically, the sealing body 14 is made of rubber such as butyl rubber. The sealing body 14 is provided with a pair of lead terminal insertion holes for leading out lead wires 131 (131a, 131b) to the outside.

[0032] The component holder 20 is made of synthetic resin, preferably heat-resistant synthetic resin. With reference to Fig. 5 and Fig. 6, the component holder 20 includes a base portion 210 formed in a quadrangle (preferably a regular quadrangle). The base portion may be called a seat plate portion.

[0033] In the cross-sectional view of FIG. 5(e), base portion 210 has a mounting portion 220 on the upper surface thereof on which component body 10 is mounted, and a mounting portion 230 for mounting onto a circuit board (not shown) on the bottom surface (lower surface) thereof.

[0034] A circular recess 211 is formed in the upper surface of the base portion 210 (the component mounting surface of the mounting portion 220) into which one end of the sealing portion of the exterior case 11 is shallowly fitted. A pair of lead wire insertion holes 212, 212 through which the external lead wires 131a, 131b are inserted are formed in the center of the recess 211.

[0035] The mounting section 220 is also provided with a component holding section 213 that holds the component body 10 to be mounted. In this embodiment, the component holding section 213 is made up of four holding arms 213a to 213d that are erected at the four corners of the base section 210 so that the exterior case 11 of the component body 10 fits closely therewith.

[0036] As another example, component holder 213 may be at least two holding arms arranged opposite to each other and extending along the outer surface of outer case 11, such as a combination of 213a and 213c or a combination of 213b and 213d. Also, component holder 213 may be a cylindrical body into which outer case 11 fits closely. Component body 10 may be fixed in component holder 213 by adhesive or the like.

[0037] Referring particularly to FIG. 6(b), the mounting portion 230 on the bottom side is provided with a first terminal portion 201 electrically connected to the external lead wire 131a of one lead terminal 13a, and a second terminal portion 202 electrically connected to the external lead wire 131b of the other lead terminal 13b.

[0038] For example, the first terminal portion 201 is an anode, and the second terminal portion 202 is a cathode. These terminal portions 201, 202 are disposed on two opposing sides 210L, 210R of the four sides of the base portion 210.

[0039] In the present invention, a press-fit terminal is used as a plug-in terminal for a circuit board (not shown). A press-fit terminal is a terminal that is inserted into a through-hole of a circuit board and has a spring characteristic. The terminal is pressed into the through-hole with a width larger than the diameter of the through-hole, and the pressure caused by the elastic deformation of the terminal maintains contact with the plating inside the through-hole. There are needle-eye terminal types, action terminal types, Σ terminal types, etc., but there is no particular limit to the type of press-fit terminal.

[0040] According to a preferred embodiment of the present invention, the first terminal portion 201 includes two press-fit terminals 231a and 231b, and similarly, the second terminal portion 202 includes two press-fit terminals 231c and 231d. Since the press-fit terminals 231a, 231b, 231c, and 231d have the same configuration, they are collectively referred to as press-fit terminals 231 when there is no need to distinguish between them.

[0041] In this embodiment, the press-fit terminals 231a, 231b of the first terminal portion 201 are disposed equidistant from a center line XX (see FIG. 5(a)) passing through the lead wire insertion holes 212, 212 of the base portion 210. Similarly, the press-fit terminals 231c, 231d of the second terminal portion 202 are disposed equidistant from the center line XX passing through the lead wire insertion holes 212, 212 of the base portion 210.

[0042] In addition, a first plane P1 including the press-fit terminals 231a, 231b of the first terminal portion 201 and a second plane P2 including the press-fit terminals 231c, 231d of the second terminal portion 202 are parallel to each other, but in order to prevent reverse insertion into the circuit board (mixing up the anode and cathode), the distance d1 between the press-fit terminals 231a, 231b on one side and the distance d2 between the press-fit terminals 231c, 231d on the other side are such that d1 ≠ d2.

[0043] In order to make it possible to visually distinguish the polarity, it is preferable that the absolute value of the difference between the interval d1 and the interval d2, |d1-d2|, is 1 mm or more. As another method for preventing reverse insertion, the first plane P1 including the press-fit terminals 231a and 231b and the second plane P2 including the press-fit terminals 231c and 231d may be made non-parallel.

[0044] Furthermore, in order to make it possible to visually distinguish the polarity, the holding arms 213a, 231d on the first terminal portion 201 side (anode side) and the holding arms 213b, 231c on the second terminal portion 202 side (cathode side) may be made to have different heights. In this embodiment, the holding arms 213a, 231d on the anode side are made higher than the holding arms 213b, 231c on the cathode side.

[0045] Next, referring to Figures 3 and 4, press-fit terminals 231a, 231b of first terminal portion 201 are connected by an intermediate terminal board 234 embedded in base portion 210, and similarly, press-fit terminals 231c, 231d of second terminal portion 202 are also connected by an intermediate terminal board 234 embedded in base portion 210.

[0046] A part (a part along the center line XX) of the relay terminal board 234 is exposed on the bottom surface side of the base part 210, and the external lead wires 131 (131a, 131b) of the lead terminals 13 (13a, 13b) are connected to the exposed part. The connection method may be soldering, welding, or the like.

[0047] To assemble this electronic component 1, the component body 10 is mounted on the mounting portion 220 of the component holder 20 while its external lead wires 131a, 131b are inserted into the lead wire insertion holes 212, 212, and then the external lead wires 131a, 131b are bent approximately 90 degrees away from each other and connected to the relay terminal boards 234, 234 by soldering, welding, or the like.

[0048] To mount the device on a circuit board, the press-fit terminals 231 (231a to 231d) are press-fitted into through-holes drilled in the circuit board, which allows for solderless electrical connection.

[0049] In this way, press-fit terminals enable solderless electrical connection, but when it is desired to further improve the reliability of the connection, for example, flow soldering or reflow soldering may be used in combination.

[0050] In order to prevent deformation such as warping of the holding arms 213 due to the heat generated at that time, it is preferable to form reinforcing plates 214 integrally between each of the holding arms 213 (between 213a and 213b, 213b and 213c, 213c and 213d, and 213d and 213a), as shown in FIG. 7.

[0051] Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the description of the above embodiments. Modifications or improvements made to the above embodiments by those skilled in the art are also included in the technical scope of the present invention. [Explanation of symbols]

[0052] 1. Electronic Components 10 Parts body 11 Outer case 12 Component elements (capacitor elements) 13(13a,13b) Lead terminal 131 (131a, 131b) External lead wire 20 Parts Holder 201 1st terminal section 202 2nd terminal section 210 Pedestal 213 Parts holder 220 Mounting section 230 Mounting section 231(231a~231d) Press-fit terminal 234 Relay terminal board

Claims

1. The component body includes a pair of lead terminals extending in the same direction from a sealing portion of an outer case in which a component element is built, and a component holder made of synthetic resin that is attached to the sealing portion side of the outer case, the component holder includes a base having a pair of lead wire insertion holes through which the outgoing lead wires of the lead terminals are inserted, and a first terminal portion electrically connected to one of the outgoing lead wires of the lead terminals and a second terminal portion electrically connected to the other of the outgoing lead wires of the lead terminals are provided on a bottom surface side of the base, and the outgoing lead wires of each lead terminal of the component body are passed through the lead wire insertion holes and electrically connected to each of the terminal portions, the first terminal portion includes two first press-fit terminals, and the second terminal portion includes two second press-fit terminals; an electronic component, characterized in that a first plane including the two first press-fit terminals and a second plane including the two second press-fit terminals are parallel to each other, a distance between the first press-fit terminals is d1, a distance between the second press-fit terminals is d2, and d1≠d2 is satisfied.

2. A component body having a pair of lead terminals extending in the same direction from a sealing portion of an outer case in which a component element is built, and a component holder made of synthetic resin attached to the sealing portion side of the outer case, the component holder includes a base having a pair of lead wire insertion holes through which the outgoing lead wires of the lead terminals are inserted, and a first terminal portion electrically connected to one of the outgoing lead wires of the lead terminals and a second terminal portion electrically connected to the other of the outgoing lead wires of the lead terminals are provided on a bottom surface side of the base, and the outgoing lead wires of each lead terminal of the component body are passed through the lead wire insertion holes and electrically connected to each of the terminal portions, the first terminal portion includes two first press-fit terminals, and the second terminal portion includes two second press-fit terminals; an electronic component, characterized in that a first plane including the two first press-fit terminals and a second plane including the two second press-fit terminals are non-parallel to each other, a distance between the first press-fit terminals is d1, a distance between the second press-fit terminals is d2, and d1≠d2 is satisfied.

3. 3. The electronic component according to claim 1, wherein an absolute value of a difference between the distance d1 and the distance d2, |d1-d2|, is 1 mm or more.

4. 3. The electronic component according to claim 1, wherein the two first press-fit terminals are electrically connected by a first relay terminal plate and the two second press-fit terminals are electrically connected by a second relay terminal plate, one of the lead terminals is electrically connected to the first relay terminal plate and the other of the lead terminals is electrically connected to the second relay terminal plate.

5. 3. The electronic component according to claim 1, wherein a component holding portion into which the exterior case is fitted is provided on an upper surface of the base portion.

6. 6. The electronic component according to claim 5, wherein the component holder includes at least two holding arms arranged opposite to each other and extending along the outer surface of the exterior case.

7. 7. The electronic component according to claim 6, wherein the holding arm on the first terminal side and the holding arm on the second terminal side have different heights.

8. The electronic component according to claim 7, characterized in that the base portion is approximately rectangular in plan view, the holding arms are erected at the four corners of the base portion, and a reinforcing plate is integrally formed between the holding arms.

9. A component holder made of synthetic resin is attached to a component body on the side of a sealing portion of an outer case in which a component element is built and in which a pair of lead terminals are drawn out in the same direction from the sealing portion of the outer case, a component holder comprising a base portion having a pair of lead wire insertion holes through which the outgoing lead wires of the lead terminals are inserted, a first terminal portion electrically connected to one of the outgoing lead wires of the lead terminals and a second terminal portion electrically connected to the other of the outgoing lead wires of the lead terminals are provided on a bottom surface side of the base portion, and the outgoing lead wires of each lead terminal of the component body are passed through the lead wire insertion holes to be electrically connected to each of the terminal portions, the first terminal portion includes two first press-fit terminals, and the second terminal portion includes two second press-fit terminals; a first plane including the two first press-fit terminals and a second plane including the two second press-fit terminals are parallel to each other, a distance between the first press-fit terminals is d1, a distance between the second press-fit terminals is d2, and d1≠d2 is satisfied.

10. A component holder made of synthetic resin that is attached to a component body having a pair of lead terminals extending in the same direction from a sealing portion of an outer case containing a component element, the component holder comprising: a component holder comprising a base portion having a pair of lead wire insertion holes through which the outgoing lead wires of the lead terminals are inserted, a first terminal portion electrically connected to one of the outgoing lead wires of the lead terminals and a second terminal portion electrically connected to the other of the outgoing lead wires of the lead terminals are provided on a bottom surface side of the base portion, and the outgoing lead wires of each lead terminal of the component body are passed through the lead wire insertion holes to be electrically connected to each of the terminal portions, the first terminal portion includes two first press-fit terminals, and the second terminal portion includes two second press-fit terminals; a first plane including the two first press-fit terminals and a second plane including the two second press-fit terminals are non-parallel, a distance between the first press-fit terminals is d1, a distance between the second press-fit terminals is d2, and d1≠d2 is satisfied.

11. 11. The component holder according to claim 9, wherein an absolute value of a difference between the distance d1 and the distance d2, |d1-d2|, is 1 mm or more.

12. 11. A component holder as described in claim 9 or 10, characterized in that the two first press-fit terminals are electrically connected by a first relay terminal plate and the two second press-fit terminals are electrically connected by a second relay terminal plate, one of the lead terminals is electrically connected to the first relay terminal plate and the other of the lead terminals is electrically connected to the second relay terminal plate.

13. 11. The component holder according to claim 9, wherein a component holding portion into which the outer case is fitted is provided on an upper surface side of the base portion.

14. The component holder according to claim 13 , wherein the component holding portion includes at least two holding arms extending along an outer surface of the outer case.

15. 15. The component holder according to claim 14, wherein the holding arm on the first terminal side and the holding arm on the second terminal side have different heights.

16. 16. The component holder according to claim 15, wherein the base portion is substantially rectangular in plan view, the holding arms are erected at the four corners of the base portion, and a reinforcing plate is integrally formed between the holding arms.

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