Electronic component unit and wiring module

Abstract

To improve connection reliability between an electronic component and a terminal in an electronic component unit.SOLUTION: The electronic component unit 10 includes the first terminal 20, the second terminal 30, the resin portion 40 covering a part of the first terminal 20 and a part of the second terminal 30, and the electronic component 50, the electronic component 50 includes the first electrode 51 and the second electrode 52, the first terminal 20 includes the first connection portion 23 electrically connected to the first electrode 51, and the second terminal 30 includes the second connection portion 32 electrically connected to the second electrode 52. The first connecting portion 23 and the second connecting portion 32 are held by the plastic portion 40 in a state of being separated in a first direction D1, the first connecting portion 23 has a first end surface D1 facing the first electrodes 51 in a second direction D2 orthogonal to the first direction 23A, and the second connecting portion 32 has a second end surface D2 facing the second electrodes 52 in the second direction 32A. The plastic portion 40 includes the groove 41 recessed toward the second direction 23A with respect to the first end surface 32A and the second end surface D2, and the groove 41 is arranged between the first connecting portion 23 and the second connecting portion 32 on the first direction D1.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates to an electronic component unit and a wiring module. [Background technology]

[0002] High-voltage battery packs used in electric vehicles, hybrid vehicles, and the like typically have a large number of stacked battery cells electrically connected in series or parallel by a wiring module. A known example of such a wiring module is the conductor module described in JP 2019-32928 A (Patent Document 1 below). The conductor module described in Patent Document 1 includes a wiring material and multiple bus bars. The wiring material has multiple wires that electrically connect the bus bars and the battery module monitoring unit, and electronic components installed along the wires. Patent Document 1 cites a flexible printed circuit (FPC) as an example of the wiring material and a fuse as an example of the electronic component. Using an FPC as the wiring material makes it possible to easily install electronic components on the wiring material by mounting. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-32928 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-described conductor module, in order to reduce manufacturing costs, etc., it is conceivable to construct the wiring material from an electric wire, a terminal, and a resin part. The electric wire is electrically connected to the terminal. The resin part is formed integrally with the terminal. The terminal has a connection part that is exposed from the resin part and connected to an electronic component. In such a case, in order to improve the electrical connection between the electronic component and the terminal, it is necessary to suitably expose the connection part from the resin part. [Means for solving the problem]

[0005] The electronic component unit of the present disclosure includes a first terminal, a second terminal, a resin portion covering a portion of the first terminal and a portion of the second terminal, and an electronic component, the electronic component including a first electrode and a second electrode, the first terminal including a first connection portion electrically connected to the first electrode, and the second terminal including a second connection portion electrically connected to the second electrode, the first connection portion and the second connection portion being held in the resin portion while being spaced apart in a first direction, the first connection portion having a first end face facing the first electrode in a second direction perpendicular to the first direction, the second connection portion having a second end face facing the second electrode in the second direction, the resin portion having a groove portion recessed in the second direction relative to the first end face and the second end face, and the groove portion being disposed between the first connection portion and the second connection portion in the first direction.

[0006] The wiring module of the present disclosure includes the electronic component unit described above and an electric wire electrically connected to the first terminal or the second terminal. [Effects of the Invention]

[0007] According to the present disclosure, it is possible to improve the connection reliability between the electronic component and the terminal in the electronic component unit. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of an electronic component unit according to a first embodiment. [Figure 2] FIG. 2 is a plan view of the electronic component unit. [Figure 3] FIG. 3 is a cross-sectional view taken along line AA in FIG. [Figure 4] FIG. 4 is an enlarged view of FIG. 3 showing the periphery of the resin portion. [Figure 5] FIG. 5 is a cross-sectional view taken along line BB in FIG. [Figure 6] FIG. 6 is a plan view of the first terminal and the second terminal. [Figure 7] FIG. 7 is a plan view of the intermediate molded body. [Figure 8] FIG. 8 is an enlarged view of FIG. 7 showing the groove and the extended groove. [Figure 9] FIG. 9 is a cross-sectional view taken along the line AA in FIG. 2, showing a state in which the electronic component is covered with a sealing portion. [Figure 10] FIG. 10 is a plan view of the electronic component unit to which the electric wires are crimped. [Figure 11] FIG. 11 is an enlarged plan view of the electronic component unit according to the second embodiment, showing the periphery of the resin portion. [Figure 12] FIG. 12 is a cross-sectional view taken along CC in FIG. [Figure 13] FIG. 13 is a cross-sectional view taken along line DD in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described. [1] An electronic component unit according to the present disclosure includes a first terminal, a second terminal, a resin portion covering a portion of the first terminal and a portion of the second terminal, and an electronic component, the electronic component including a first electrode and a second electrode, the first terminal including a first connection portion electrically connected to the first electrode, and the second terminal including a second connection portion electrically connected to the second electrode, the first connection portion and the second connection portion being held in the resin portion while being spaced apart in a first direction, the first connection portion having a first end face facing the first electrode in a second direction perpendicular to the first direction, the second connection portion having a second end face facing the second electrode in the second direction, the resin portion having a groove recessed in the second direction relative to the first end face and the second end face, and the groove being disposed between the first connection portion and the second connection portion in the first direction.

[0010] With this configuration, the grooves can prevent a portion of the resin portion from adhering to the first end face and the second end face, thereby preventing the electrical connection between the electronic component and the first terminal and the electrical connection between the electronic component and the second terminal from being impaired.

[0011] [2] In the above [1], it is preferable that the first connection portion has a chamfered portion provided at the corner between the first end face and the side face of the first connection portion, and the second connection portion has a chamfered portion provided at the corner between the second end face and the side face of the second connection portion.

[0012] This configuration can prevent burrs from forming on the corners of the first and second connection portions, thereby preventing damage to the electrical connections between the electronic component and the first terminal and between the electronic component and the second terminal.

[0013] [3] In the above [1] or [2], it is preferable that the first terminal has a notch recessed from an outer edge, and the notch defines the first connection portion.

[0014] With this configuration, the first connection portion is defined by the notch, so that the size of the first connection portion can be appropriately adjusted and heat dissipation from the first connection portion can be controlled when an electronic component is mounted on the first connection portion.

[0015] [4] In the above [3], it is preferable that the resin part has an extended groove part that is continuous with the groove part, and the extended groove part is arranged adjacent to the first connection part inside the notch and is recessed in the second direction relative to the first end face.

[0016] With this configuration, the extension groove can prevent a portion of the resin portion from adhering to the first end face through the notch, thereby preventing the electrical connection between the electronic component and the first terminal from being impaired.

[0017] [5] In any one of the above [1] to [4], it is preferable that the first terminal has a receiving space formed by being recessed from an outer surface, and a part of the resin part is disposed in the receiving space.

[0018] With this configuration, the resin portion can increase the holding force of the first terminal.

[0019] [6] A wiring module according to the present disclosure includes any one of the electronic component units [1] to [5] above, and an electric wire electrically connected to the first terminal or the second terminal.

[0020] [Details of the embodiments of the present disclosure] The following describes embodiments of the present disclosure. The present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims. In the drawings, for the sake of convenience, some components may be exaggerated or simplified. Furthermore, the dimensional ratios of the components may differ between drawings. In this specification, "orthogonal" and "parallel" do not only refer to cases where the components are strictly orthogonal or parallel, but also include cases where the components are roughly orthogonal or parallel within the scope of the functions and effects of the present embodiment.

[0021] In addition, "facing" in this specification refers to surfaces or components facing each other, and includes not only cases where they are completely facing each other, but also cases where they are partially facing each other. In addition, "facing" in this specification includes both cases where a component separate from the two components is interposed between the two components, and cases where nothing is interposed between the two components.

[0022] In each drawing, three mutually perpendicular directions are shown, and the three directions are respectively indicated as a first direction D1, a second direction D2, and a third direction D3. That is, the first direction D1 and the second direction D2 are perpendicular to each other, the first direction D1 and the third direction D3 are perpendicular to each other, and the second direction D2 and the third direction D3 are perpendicular to each other. By indicating each direction with an arrow on both sides of the solid line, not only the direction of the arrow on the side with the symbol but also the direction of the arrow on the side without the symbol is considered to indicate the corresponding direction.

[0023] <Embodiment 1> (Electronic Components Unit 10) A first embodiment of the present disclosure will be described with reference to Figures 1 to 10. As shown in Figures 1 to 3, an electronic component unit 10 of this embodiment includes a first terminal 20, a second terminal 30, a resin part 40, and an electronic component 50. Note that, for multiple identical components, only some of the components may be designated by reference numerals, and the reference numerals for the other components may be omitted.

[0024] (1st terminal 20) The first terminal 20 is made of a conductive metal. Examples of conductive metals include copper alloys. Examples of surface treatments for conductive metals include tin plating. Specifically, the first terminal may be made of a copper alloy with tin plating formed on its surface. As shown in FIG. 6, the first terminal 20 includes a plate-like portion 21 having a rectangular plate shape, and an electric wire connection portion 22. The electric wire connection portion 22 is formed to be continuous with the plate-like portion 21 in the extension direction (first direction D1) of the first terminal 20.

[0025] The plate-shaped portion 21 has two notches 21A recessed from the outer edge of one side (the left side in the figure) of the first terminal 20 in the first direction D1. A portion of the plate-shaped portion 21 defined by the two notches 21A from both sides in the width direction (third direction D3) of the first terminal 20 is the first connecting portion 23. In other words, the first connecting portion 23 and the notches 21A are adjacent to each other in the width direction of the first terminal 20. As shown in FIG. 7 , the notches 21A are partially occupied by a part of the resin portion 40. A portion of the notches 21A is an example of a receiving space.

[0026] As shown in FIG. 4, the first connection portion 23 is a portion to which the first electrode 51 of the electronic component 50 is connected. The first connection portion 23 has a first end surface 23A that faces the first electrode 51 in the second direction D2. The first end surface 23A is located at one end (upper end) of the first connection portion 23 in the second direction D2. The first end surface 23A is flat. The first end surface 23A and the first electrode 51 are connected by soldering. The first electrode 51 is mounted on the first end surface 23A.

[0027] Cutout 21A appropriately sets the area of ​​first connection portion 23 when viewed from second direction D2. If cutout 21A were not provided, there could be a possibility that heat dissipation to first terminal 20 would be large when first electrode 51 of electronic component 50 and first connection portion 23 are connected by soldering. However, in this embodiment, cutout 21A is used to appropriately adjust the size of first connection portion 23, thereby making it possible to appropriately control heat dissipation to first terminal 20.

[0028] As shown in FIG. 6 , the electric wire connecting portion 22 is a portion to which the electric wire 70 is connected. The electric wire connecting portion 22 of this embodiment includes a core wire crimping portion 22A and an insulating sheath crimping portion 22B. The core wire crimping portion 22A is disposed between the plate-shaped portion 21 and the insulating sheath crimping portion 22B in the extension direction of the first terminal 20. As shown in FIG. 10 , the core wire crimping portion 22A is crimped to the core wire of the electric wire 70. The first terminal 20 is electrically connected to the electric wire 70 by the core wire crimping portion 22A. The insulating sheath crimping portion 22B is crimped to the insulating sheath of the electric wire 70. The electric wire 70 can be fixed to the first terminal 20 by the insulating sheath crimping portion 22B.

[0029] As shown in Fig. 6, the plate-shaped portion 21 is provided with a recess 24 and a filling hole 25. The recess 24 is formed by being recessed from the edge of the plate-shaped portion 21 in the third direction D3. The filling hole 25 penetrates the plate-shaped portion 21 in the second direction D2. The internal space of the recess 24 and the filling hole 25 are an example of a receiving space.

[0030] (2nd terminal 30) The second terminal 30 is made of a conductive metal. The metal constituting the second terminal 30 may be different from the metal constituting the first terminal 20. Examples of conductive metals include aluminum and copper alloys. Examples of surface treatments for conductive metals include nickel plating and tin plating. Specifically, the second terminal may be an aluminum terminal with nickel plating formed on its surface, an aluminum terminal with tin plating formed on its surface, or a copper alloy terminal with tin plating formed on its surface. The second terminal 30 includes a rectangular plate-shaped plate portion 31. The plate portion 31 has two notches 31A recessed from the outer edge of the second terminal 30 on the other side (the right side in the figure) in the first direction D1. A portion of the plate portion 31 defined by the two notches 31A from both sides in the width direction (third direction D3) of the second terminal 30 is defined as a second connection portion 32. In other words, the second connection portion 32 and the notch 31A are adjacent to each other in the width direction of the second terminal 30. As shown in Fig. 7, the notch 31A is partially occupied by a part of the resin portion 40.

[0031] As shown in FIG. 4, the second connection portion 32 is a portion to which the second electrode 52 of the electronic component 50 is connected. The second connection portion 32 has a second end face 32A facing the second electrode 52 in the second direction D2. The second end face 32A is located at one end (upper end) of the second connection portion 32 in the second direction D2. The second end face 32A is flat. The second end face 32A is located at approximately the same position as the first end face 23A in the second direction D2 and is parallel to the first end face 23A. The second end face 32A and the second electrode 52 are connected by soldering. The second electrode 52 is mounted on the second end face 32A.

[0032] In this embodiment, by appropriately adjusting the size of the second connection portion 32 using the cutout 31A, it is possible to appropriately control heat conduction to the second terminal 30 when connecting the second electrode 52 of the electronic component 50 to the second connection portion 32 by soldering.

[0033] As shown in Fig. 6, one portion of the plate-shaped portion 31 on one side in the first direction D1 is a mating member connecting portion 33. The mating member connecting portion 33 is a portion that is electrically connected to a mating member. The mating member is, for example, a bus bar or an electrode terminal of an energy storage element. The mating member connecting portion 33 and the mating member are connected by, for example, welding or soldering.

[0034] A recess 34 and a filling hole 35 are provided in the plate-shaped portion 31 between the second connection portion 32 and the mating member connection portion 33. The recess 34 is recessed from the edge of the plate-shaped portion 31 in the third direction D3. The filling hole 35 penetrates the plate-shaped portion 31 in the second direction D2.

[0035] As shown in Fig. 3, the plate thickness of the first connecting portion 23 (plate-shaped portion 21) of the first terminal 20 and the plate thickness of the second connecting portion 32 (plate-shaped portion 31) of the second terminal 30 may be different. Specifically, the plate thickness of the plate-shaped portion 21 of the first terminal 20 is smaller than the plate thickness of the plate-shaped portion 31 of the second terminal 30. Also, unlike this embodiment, the plate thickness of the plate-shaped portion of the first terminal may be the same as the plate thickness of the plate-shaped portion of the second terminal. The plate thickness of the plate-shaped portion of the first terminal may be larger than the plate thickness of the plate-shaped portion of the second terminal.

[0036] (Resin part 40) The resin portion 40 is made of an insulating synthetic resin. As shown in FIGS. 1 to 3 , the resin portion 40 covers a portion of the first terminal 20 and a portion of the second terminal 30. The resin portion 40 is formed integrally with the first terminal 20 and the second terminal 30 by insert molding. As shown in FIG. 7 , during insert molding, molten resin, which is the raw material of the resin portion 40, fills a portion of the cutouts 21A and 31A, the filling holes 25 and 35, and the internal spaces of the recesses 24 and 34, thereby fixing the first terminal 20 and the second terminal 30 to the resin portion 40. The resin portion 40 maintains a distance between the first terminal 20 and the second terminal 30. The resin portion 40 positions the first terminal 20 and the second terminal 30 so that they do not come into direct contact with each other.

[0037] 3, the resin part 40 exposes the first end face 23A and the second end face 32A. The first connection part 23 and the second connection part 32 are arranged at a predetermined distance in the first direction D1 by the resin part 40. The resin part 40 exposes the electric wire connection part 22 to the outside. The resin part 40 exposes the mating member connection part 33 to the outside.

[0038] (groove 41) 4, the resin part 40 has a groove 41 disposed between the first connection part 23 and the second connection part 32. The groove 41 is recessed in the second direction D2 relative to the first end face 23A and the second end face 32A. The groove 41 is disposed on the other side (lower) in the second direction D2 relative to the first end face 23A and the second end face 32A.

[0039] The groove 41 includes a bottom 41A, a first side 41B disposed between the bottom 41A and the first connecting portion 23, and a second side 41C disposed between the bottom 41A and the second connecting portion 32. The bottom 41A is, for example, planar. The bottom 41A may be parallel to the first end face 23A and the second end face 32A. The first side 41B is continuous with the side face 23B of the first connecting portion 23. The side face 23B is an outer surface connecting the outer edge of the first end face 23A to the outer edge of the face (lower end face) disposed on the opposite side of the first end face 23A. The second side 41C is continuous with the side face 32B of the second connecting portion 32. The side surface 32B is an outer surface that connects the outer edge of the second end surface 32A to the outer edge of the surface (lower end surface) disposed on the opposite side of the second end surface 32A.

[0040] As shown in Fig. 8, the resin part 40 has an extended groove part 42 that is continuous with the groove part 41. The extended groove part 42 is disposed inside the cutout 21A. The extended groove part 42 is adjacent to the first connection part 23 in the third direction D3. As shown in Fig. 5, the extended groove part 42 is recessed in the second direction D2 with respect to the first end face 23A.

[0041] The extended groove 42 includes an extended bottom portion 42A, a connecting portion 42B disposed between the extended bottom portion 42A and the first connecting portion 23, and a rising portion 42C rising from the extended bottom portion 42A. The extended bottom portion 42A is, for example, planar. The extended bottom portion 42A may be parallel to the first end face 23A and the second end face 32A. The connecting portion 42B is continuous with the side surface 23B of the first connecting portion 23. The rising portion 42C faces the connecting portion 42B in the third direction D3. The rising portion 42C extends upward beyond the first end face 23A. The rising portion 42C is connected to a peripheral wall portion 44, which will be described later. The extended bottom portion 42A and the connecting portion 42B are disposed below the first end face 23A. As shown in FIG. 8, the extended bottom portion 42A is continuous with the bottom portion 41A of the groove 41. The connecting portion 42B is connected to the first side portion 41B.

[0042] The resin part 40 also has an extension groove 43 that is continuous with the groove 41. The extension groove 43 is disposed inside the cutout 31A. The extension groove 43 is adjacent to the second connection part 32 in the third direction D3. The extension groove 43 is recessed in the second direction D2 with respect to the second end face 32A. The extension groove 43 is configured in substantially the same manner as the extension groove 42.

[0043] 3, the resin part 40 has a peripheral wall part 44 that extends further to one side (upward) in the second direction D2 than the first connecting part 23 and the second connecting part 32. The peripheral wall part 44 is arranged to surround the electronic component 50 in a direction perpendicular to the second direction D2. The peripheral wall part 44 is arranged so as not to come into contact with the electronic component 50. The upper end of the peripheral wall part 44 is arranged higher than the upper end of the electronic component 50. The peripheral wall part 44 defines an opening 44A that opens upward.

[0044] (Electronic Components 50) Examples of the electronic component 50 include a fuse (such as a chip fuse or a fuse with leads), a resistor (such as a chip resistor or a resistor with leads), and a metal piece. In the present disclosure, a chip fuse is exemplified. As shown in FIG. 2 , the electronic component 50 includes a first electrode 51 and a second electrode 52. When the chip fuse melts due to a large current flowing through it, the first electrode 51 and the second electrode 52 are electrically insulated from each other. The first electrode 51 is disposed on the first connection portion 23, and the second electrode 52 is disposed on the second connection portion 32. The first electrode 51 and the first connection portion 23 are connected by soldering. The second electrode 52 and the second connection portion 32 are connected by soldering.

[0045] As shown in FIG. 9 , the electronic component unit 10 of this embodiment may include a sealing portion 60. The sealing portion 60 is made of a curable insulating resin. The sealing portion 60 may be made of a resin different from the synthetic resin that constitutes the resin portion 40. The sealing portion 60 may be transparent. The sealing portion 60 is, for example, a potting agent. The sealing portion 60 is arranged to fill the space within the opening 44A of the peripheral wall portion 44. The sealing portion 60 covers the electronic component 50, the connection portion between the first connecting portion 23 and the first electrode 51, and the connection portion between the second connecting portion 32 and the second electrode 52. The sealing portion 60 is formed by filling the opening 44A with uncured liquid insulating resin after the mounting process and curing the insulating resin.

[0046] The provision of the sealing portion 60 can prevent water droplets from entering the opening 44A of the peripheral wall portion 44. Therefore, after the chip fuse is blown, it is possible to prevent electrical continuity between the first connecting portion 23 and the second connecting portion 32 through water droplets.

[0047] (Wiring module 1) The electronic component unit 10 of this embodiment can be applied to a wiring module 1 that connects multiple energy storage elements. For example, the wiring module 1 may be mounted on a vehicle such as an electric vehicle or a hybrid vehicle. As shown in FIG. 10 , the wiring module 1 includes the electronic component unit 10 and an electric wire 70 connected to an electric wire connection portion 22. For example, the mating member connection portion 33 of the second terminal 30 may be connected to an electrode terminal of a pre-joined energy storage element. Alternatively, the wiring module 1 may include the electronic component unit 10, the electric wire 70 connected to the electric wire connection portion 22, and a bus bar connected to the mating member connection portion 33, and the bus bar may be connected to the electrode terminal of the energy storage element. The electric wire 70 is connected to an external device such as an ECU (Electronic Control Unit) via a connector. The electric wire 70 functions as a voltage detection line.

[0048] (Method of manufacturing electronic component unit 10) The following describes an example of a method for manufacturing the electronic component unit 10. First, a metal plate is pressed to form the first terminal 20 and the second terminal 30 (see FIG. 6).

[0049] Next, insert molding of the resin part 40 is performed using a part of the first terminal 20 and a part of the second terminal 30 as insert parts. The first terminal 20 and the second terminal 30 are placed in a mold, and the mold is filled with molten resin, which is the raw material for the resin part 40. Once the resin has hardened, the mold is removed, and an intermediate molded body 46 is obtained in which the first terminal 20, the second terminal 30, and the resin part 40 are integrated (see FIG. 7).

[0050] During insert molding, if groove 41 is not provided as in this embodiment, molten resin may move to first end face 23A and second end face 32A, forming a resin film on first end face 23A and second end face 32A. In such a case, the resin film may cause a failure in the electrical connection between first connecting portion 23 and first electrode 51 or between second connecting portion 32 and second electrode 52.

[0051] However, in this embodiment, since groove 41 is provided, the molten resin is less likely to move toward first end face 23A and second end face 32A when forming resin portion 40. This makes it possible to prevent a portion of resin portion 40 from adhering to first end face 23A and second end face 32A. This improves the reliability of the electrical connection between electronic component 50 and first terminal 20 and the electrical connection between electronic component 50 and second terminal 30.

[0052] Furthermore, in this embodiment, the extension grooves 42 and 43 are further formed, which further prevents a part of the resin portion 40 from adhering to the first end face 23A and the second end face 32A.

[0053] An electronic component 50 is placed in the opening 44A of the intermediate molded body 46, and the first electrode 51 is soldered to the first connecting portion 23, and the second electrode 52 is soldered to the second connecting portion 32 (see FIG. 2).

[0054] Furthermore, the opening 44A may be filled with a curable insulating resin and cured to provide the sealing portion 60. In this way, the manufacturing of the electronic component unit 10 is completed.

[0055] (Effects of the first embodiment) (1-1) An electronic component unit 10 according to a first embodiment includes a first terminal 20, a second terminal 30, a resin portion 40 covering a portion of the first terminal 20 and a portion of the second terminal 30, and an electronic component 50, the electronic component 50 including a first electrode 51 and a second electrode 52, the first terminal 20 including a first connection portion 23 electrically connected to the first electrode 51, the second terminal 30 including a second connection portion 32 electrically connected to the second electrode 52, and the first connection portion 23 and the second connection portion 32 , and are held in the resin part 40 while being spaced apart in the first direction D1, the first connection part 23 has a first end face 23A facing the first electrode 51 in a second direction D2 perpendicular to the first direction D1, the second connection part 32 has a second end face 32A facing the second electrode 52 in the second direction D2, the resin part 40 has a groove part 41 recessed in the second direction D2 relative to the first end face 23A and the second end face 32A, and the groove part 41 is arranged between the first connection part 23 and the second connection part 32 in the first direction D1.

[0056] According to this configuration, the grooves 41 can prevent a portion of the resin portion 40 from adhering to the first end face 23A and the second end face 32A, thereby preventing the electrical connection between the electronic component 50 and the first terminal 20 and the electrical connection between the electronic component 50 and the second terminal 30 from being impaired.

[0057] (1-2) In the first embodiment, the first terminal 20 has a notch 21A recessed from the outer edge, and the notch 21A defines the first connection portion 23.

[0058] With this configuration, the first connection portion 23 is defined by the notch 21A, so that the size of the first connection portion 23 can be appropriately adjusted, and heat dissipation from the first connection portion 23 can be controlled when the electronic component 50 is mounted on the first connection portion 23.

[0059] (1-3) In embodiment 1, the resin part 40 has an extended groove part 42 that is continuous with the groove part 41, and the extended groove part 42 is arranged adjacent to the first connection part 23 inside the cutout 21A and is recessed in the second direction D2 relative to the first end face 23A.

[0060] With this configuration, the provision of extension groove 42 can prevent a portion of resin portion 40 from adhering to first end surface 23A through notch 21A, thereby preventing the electrical connection between electronic component 50 and first terminal 20 from being impaired.

[0061] (1-4) In the first embodiment, the first terminal 20 has a receiving space (part of the cutout 21A, the filling hole 25, and the internal space of the recess 24) recessed from the outer surface, and part of the resin part 40 is disposed in the receiving space.

[0062] With this configuration, the holding force of the resin part 40 for the first terminal 20 can be increased.

[0063] (1-5) The wiring module 1 according to the first embodiment includes the electronic component unit 10 and the electric wire 70 electrically connected to the first terminal 20.

[0064] <Embodiment 2> A second embodiment of the present disclosure will be described with reference to Figures 11 to 13. As shown in Figure 11, an electronic component unit 110 according to the second embodiment includes a first terminal 120, a second terminal 130, a resin part 40, and an electronic component 50. The first terminal 120 includes a first connecting part 123. The second terminal 130 includes a second connecting part 132. Hereinafter, descriptions of the same components, functions, and effects as those of the first embodiment may be omitted.

[0065] (chamfered part 123C) 12 and 13, the first connection portion 123 has a chamfered portion 123C provided at the corner between the first end face 23A and the side face 23B. In this embodiment, the chamfered portion 123C has a tapered surface. The side face 23B may be exposed from the resin portion 40. A portion of the chamfered portion 123C may be covered by the resin portion 40.

[0066] (chamfered part 132C) 12, the second connection portion 132 has a chamfered portion 132C provided at the corner between the second end face 32A and the side face 32B. The chamfered portion 132C has a configuration similar to that of the chamfered portion 123C. The side face 32B may be exposed from the resin portion 40. A portion of the chamfered portion 132C may be covered by the resin portion 40.

[0067] (Effects of the second embodiment) (2-1) In the electronic component unit 110 according to the second embodiment, the first connecting portion 123 has a chamfered portion 123C provided at the corner between the first end face 23A and the side face 23B of the first connecting portion 123, and the second connecting portion 132 has a chamfered portion 132C provided at the corner between the second end face 32A and the side face 32B of the second connecting portion 132.

[0068] This configuration can prevent burrs from forming at the corners of the first connecting portion 123 and the second connecting portion 132. This can improve the contact between the first connecting portion 123 and the first electrode 51, and the contact between the second connecting portion 132 and the second electrode 52. This can prevent the electrical connection between the electronic component 50 and the first terminal 120, and the electrical connection between the electronic component 50 and the second terminal 130 from being impaired.

[0069] (Other embodiments) The above-described first and second embodiments can be modified as follows: The above-described first and second embodiments and the following modifications can be combined and implemented within the scope of technical compatibility.

[0070] The groove may not have the first side and the second side, and the bottom may be continuous with the side surface of the first connecting portion and the side surface of the second connecting portion.

[0071] The first terminal and the second terminal do not need to have a notch, a recess, or a filling hole.

[0072] The resin part does not need to have an extension groove.

[0073] The chamfered portion may have a rounded R surface. [Explanation of symbols]

[0074] 1: Wiring module 10: Electronic component unit 20: Terminal 21: Plate-shaped part 21A: Notch 22: Wire connection part 22A: Core wire crimping section 22B: Insulation coating crimp part 23: First connection part 23A: 1st end surface 23B: Side 24: Recess 25: Filling hole 30: 2nd terminal 31: Plate-shaped part 31A: Notch 32: Second connection part 32A: 2nd end surface 32B: Side 33: Connection part of mating member 34: Recess 35: Filling hole 40: Resin part 41: Groove 41A: Bottom 41B: First side 41C: Second side 42: Extension groove 42A: Extension bottom 42B: Connection part 42C: Rising part 43: Extension groove 44: Peripheral wall part 44A: Opening 46: Intermediate molded body 50: Electronic parts 51: 1st electrode 52:Second electrode 60: Sealing part 70: Electric wire 110: Electronic component unit 120: 1st terminal 123: First connection part 123C: Chamfered part 130: 2nd terminal 132: Second connection part 132C: Chamfered part D1: 1st direction D2:Second direction D3: Third direction

Claims

1. A first terminal; A second terminal; a resin portion covering a portion of the first terminal and a portion of the second terminal; an electronic component; the electronic component includes a first electrode and a second electrode; the first terminal includes a first connection portion electrically connected to the first electrode; the second terminal includes a second connection portion electrically connected to the second electrode, the first connection portion and the second connection portion are held in the resin portion in a state separated from each other in a first direction, the first connection portion has a first end surface facing the first electrode in a second direction perpendicular to the first direction; the second connection portion has a second end surface facing the second electrode in the second direction, the resin portion has a groove portion recessed in the second direction relative to the first end surface and the second end surface, The groove portion is disposed between the first connecting portion and the second connecting portion in the first direction.

2. the first connection portion has a chamfered portion provided at a corner between the first end surface and a side surface of the first connection portion, The electronic component unit according to claim 1 , wherein the second connection portion has a chamfered portion provided at a corner between the second end face and a side surface of the second connection portion.

3. the first terminal has a notch recessed from an outer edge portion, The electronic component unit according to claim 1 , wherein the notch defines the first connection portion.

4. the resin portion has an extension groove portion that is continuous with the groove portion, The electronic component unit according to claim 3 , wherein the extension groove portion is disposed adjacent to the first connection portion inside the notch and is recessed in the second direction relative to the first end face.

5. The first terminal has a receiving space recessed from an outer surface thereof, 3. The electronic component unit according to claim 1, wherein a part of the resin portion is disposed in the receiving space.

6. an electronic component unit according to claim 1 or 2; an electric wire electrically connected to the first terminal or the second terminal.

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