Electrical connection unit

Abstract

One embodiment provides an electrical connection unit that can improve ease of assembly. [Solution] An electrical connection unit according to one embodiment comprises an electronic component, a first cable guide, a second cable guide, a first metal part, a second metal part, and a holder member. The electronic component has a first terminal, a second terminal, and an insulating rib. The first cable guide is fixed to the first terminal by a first fastening member inserted into a first mounting hole. The second cable guide is fixed to the second terminal by a second fastening member inserted into a second mounting hole. The first metal part is fastened together with the first cable guide by inserting the first fastening member into a third mounting hole. The second metal part is fastened together with the second cable guide by inserting the second fastening member into a fourth mounting hole. The holder member integrally holds the first metal part and the second metal part and is attached to the insulating rib.

Description

Technical Field

[0001] Embodiments of the present invention relate to an electrical connection unit.

Background Art

[0002] An electrical connection unit having an electronic component and a wiring material electrically connected to the electronic component is known.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, an improvement in the assemblability of the electrical connection unit is expected.

[0005] One embodiment provides an electrical connection unit capable of improving assemblability.

Means for Solving the Problems

[0006] An electrical connection unit according to one embodiment includes an electronic component, a first cable guide, a second cable guide, a first metal part, a second metal part, and a holder member. The electronic component has a first terminal, a second terminal, and an insulating rib. The insulating rib is positioned between the first terminal and the second terminal when viewed from a first direction. The first cable guide has a first mounting hole and is fixed to the first terminal by a first fastening member inserted into the first mounting hole from the first direction. The second cable guide has a second mounting hole and is fixed to the second terminal by a second fastening member inserted into the second mounting hole from the first direction. The first metal part has a third mounting hole facing the first mounting hole and is fastened together with the first cable guide by inserting the first fastening member into the third mounting hole. The second metal part has a fourth mounting hole facing the second mounting hole and is fastened together with the second cable guide by inserting the second fastening member into the fourth mounting hole. The holder member integrally holds the first metal part and the second metal part and is attached to the insulating rib. [Effects of the Invention]

[0007] According to one embodiment, the ease of assembly can be improved. [Brief explanation of the drawing]

[0008] [Figure 1] A cross-sectional view showing the electrical connection unit of the first embodiment. [Figure 2] A perspective view showing a part of the electrical connection unit of the first embodiment. [Figure 3] A perspective view showing a disassembled portion of the electrical connection unit of the first embodiment. [Figure 4] A diagram showing a heat storage unit according to the first embodiment. [Figure 5] A diagram showing the installation method of the heat storage unit according to the first embodiment. [Figure 6] A cross-sectional view showing an electrical connection unit of a modified example of the first embodiment. [Figure 7] A cross-sectional view showing the electrical connection unit of the second embodiment. [Figure 8]A perspective view showing a disassembled portion of the electrical connection unit of the second embodiment. [Figure 9] A perspective view showing a disassembled portion of the electrical connection unit of the third embodiment. [Figure 10] A cross-sectional view showing the electronic components and heat storage unit of the third embodiment. [Figure 11] A perspective view showing a disassembled portion of the electrical connection unit of the fourth embodiment. [Figure 12] A cross-sectional view showing the electronic components and heat storage unit of the fourth embodiment. [Figure 13] A cross-sectional view showing the electrical connection unit of the fifth embodiment. [Figure 14] A perspective view showing a disassembled portion of the electrical connection unit of the fifth embodiment. [Modes for carrying out the invention]

[0009] The embodiments will be described below with reference to the drawings. In the following description, components having the same or similar functions will be denoted by the same reference numerals. Duplication of these components may be omitted. The components described below do not limit the scope of the embodiments.

[0010] In this disclosure, terms are defined as follows: “Connection” may include electrical connections, not just mechanical ones. That is, “Connection” may include cases where two elements to be connected are directly connected, not just cases where two elements to be connected are connected with another element in between. “Facing” or “overlapping” means that the virtual projections of two objects overlap when viewed from a particular direction. That is, “Facing” or “overlapping” may include cases where two objects face each other with another member or gap between them, not just cases where two objects face each other. “Parallel,” “orthogonal,” or “same” may include cases where they are “approximately parallel,” “approximately orthogonal,” or “approximately the same,” respectively.

[0011] In the present disclosure, the +X direction, -X direction, +Y direction, -Y direction, +Z direction, and -Z direction are defined as follows. The +X direction is, for example, the direction from the electronic component 10 described later toward the first connection portion 31 of the bus bar 30 (see FIG. 1). The -X direction is the direction opposite to the +X direction. Hereinafter, when the +X direction and the -X direction are not distinguished, they are simply referred to as the "X direction". The +Y direction and the -Y direction are directions that intersect (for example, are orthogonal to) the X direction. The +Y direction is, for example, the direction from the first terminal 13A of the electronic component 10 described later toward the second terminal 13B (see FIG. 3). The -Y direction is the direction opposite to the +Y direction. Hereinafter, when the +Y direction and the -Y direction are not distinguished, they are simply referred to as the "Y direction". The +Z direction and the -Z direction are directions that intersect (for example, are orthogonal to) the X direction and the Y direction. The +Z direction is the direction from the first wall portion 5a of the housing 5 toward the second wall portion 5b (see FIG. 1). The -Z direction is the direction opposite to the +Z direction. Hereinafter, when the +Z direction and the -Z direction are not distinguished, they are simply referred to as the "Z direction".

[0012] Hereinafter, when the X direction and the Y direction are not distinguished, they may be referred to as the "horizontal direction". Hereinafter, the Z direction may be referred to as the "vertical direction". Also hereinafter, the +Z direction side may be referred to as "up" and the -Z direction side may be referred to as "down". However, these expressions are for convenience of explanation and do not limit the gravitational direction (installation posture of the electrical connection unit 1).

[0013] (A. First Embodiment) <A1. Configuration of Electrical Connection Unit> FIG. 1 is a cross-sectional view showing an electrical connection unit 1 according to the first embodiment. The electrical connection unit 1 is an in-vehicle device mounted on a vehicle such as an EV (Electric Vehicle), an HEV (Hybrid Electric Vehicle), or a PHEV (Plug-in Hybrid Electric Vehicle). The electrical connection unit 1 may be referred to as, for example, an "electrical connection box" or a "junction box". However, the electrical connection unit 1 is not limited to a box-shaped device. The electrical connection unit 1 has, for example, a housing 5 and a main body unit MU.

[0014] The housing 5 is a member that forms the outer shell of the electrical connection unit 1. The housing 5 is made of, for example, a synthetic resin and has insulation properties. The housing 5 houses the main body unit MU. The housing 5 includes a first wall portion 5a (first portion) that covers at least a part of the main body unit MU from the -Z direction side and a second wall portion 5b (second portion) that covers at least a part of the main body unit MU from the +Z direction side. Note that the housing 5 may be omitted.

[0015] Alternatively, instead of the box-shaped housing 5, the electrical connection unit 1 may have an insulating base member 6 that includes the first wall portion 5a and is open on the +Z direction side. The first wall portion 5a of the base member 6 may be a wall portion along the horizontal direction or a structure in which a plurality of ribs standing in the vertical direction are combined. Further, instead of the box-shaped housing 5, the electrical connection unit 1 may have an insulating base member 7 that includes the second wall portion 5b and is open on the -Z direction side. The second wall portion 5b of the base member 7 may be a wall portion along the horizontal direction or a structure in which a plurality of ribs standing in the vertical direction are combined. In the following description, "housing 5" may be read as "base member 6" or "base member 7". Each of the housing 5, the base member 6, and the base member 7 is an example of a "support" that supports the electronic component 10 or the bus bar 30 described later. Further, instead of the box-shaped housing 5, the electrical connection unit 1 may have an insulating base member 6 that includes a first wall portion 5a and is open on the +Z direction side, or an insulating base member 7 that includes a second wall portion 5b and is open on the -Z direction side. The first wall portion 5a of the base member 6 may be a wall portion along the horizontal direction, or may be a structure formed by combining a plurality of ribs standing upright in the vertical direction. The second wall portion 5b of the base member 7 may be a wall portion along the horizontal direction, or may be a structure formed by combining a plurality of ribs standing upright in the vertical direction. In the following description, "housing 5" may be read as "base member 6" or "base member 7". Each of the housing 5, the base member 6, and the base member 7 is an example of a "support body" that supports the electronic component 10 or the bus bar 30 described later.

[0016] The main body portion MU is a portion that performs the main functions of the electrical connection unit 1 (for example, switching the electrical connection state or overcurrent protection). The main body portion MU may be referred to as a "circuit configuration body". The main body portion MU includes, for example, one or more electronic components 10, a plurality of bus bars 30 (see FIG. 2), and a heat storage unit HU.

[0017] <A2. Electronic Component> First, the electronic component 10 will be described. The electronic component 10 is an electronic component mounted according to the functions required for the main body portion MU. The electronic component 10 is, for example, a connector, a fuse, a relay (for example, a mechanical relay or a semiconductor relay), a capacitor, a branching component, various sensors (for example, a current sensor or a voltage sensor), an electronic control unit, or an electronic component unit formed by unitizing two or more of these. However, the type of the electronic component 10 is not limited to the above examples. The electronic component 10 is, for example, a heat-generating component that generates heat when energized.

[0018] FIG. 2 is a perspective view showing a part of the electrical connection unit 1. FIG. 3 is a perspective view showing a part of the electrical connection unit 1 disassembled. The electronic component 10 has, for example, a case 11, a component main body portion 12, a plurality of terminals 13, and a plurality of mounting portions 14 (only one is shown in FIGS. 2 and 3).

[0019] The case 11 is an outer casing that forms most of the external shape of the electronic component 10. The case 11 is made of, for example, synthetic resin and has insulating properties. The case 11 houses the component body 12. The case 11 and the component body 12 may be formed as a single unit.

[0020] In this embodiment, the case 11 has insulating ribs 11a that protrude horizontally (e.g., in the +X direction) and extend in the Z direction. The insulating ribs 11a are, for example, plate-shaped along the X and Z directions. The insulating ribs 11a extend, for example, along the entire length of the case 11 in the Z direction. When viewed from the X direction, the insulating ribs 11a are positioned between a plurality of terminals 13 (terminals 13A and 13B, described later). The insulating ribs 11a electrically insulate terminals 13A and 13B. In this embodiment, a portion of the insulating ribs 11a is positioned between two metal parts 50A and 50B, described later. The insulating ribs 11a electrically insulate, for example, between the two metal parts 50A and 50B.

[0021] The main body of the component 12 is the part that performs the main function of the electronic component 10. For example, if the electronic component 10 is a relay, the main body of the component 12 includes a switching part (e.g., a contact part) that switches between a conductive state and a non-conductive state. For example, if the electronic component 10 is a fuse, the main body of the component 12 includes a fuse that melts when an overcurrent flows. For example, if the electronic component 10 is a capacitor, the main body of the component 12 includes a part that stores electric charge.

[0022] Terminal 13 is an electrical connection part exposed to the outside of the case 11. Terminal 13 is electrically connected to the component body 12 inside the case 11. In this embodiment, the electronic component 10 includes terminals 13A and terminal 13B as a plurality of terminals 13. One of terminals 13A and terminal 13B is the positive terminal. The other of terminals 13A and terminal 13B is the negative terminal. One of terminals 13A and terminal 13B is an example of a "first terminal". The other of terminals 13A and terminal 13B is an example of a "second terminal".

[0023] In this embodiment, terminals 13A and 13B are provided at one end of the electronic component 10 in the horizontal direction (e.g., the X direction). Terminals 13A and 13B are arranged side by side in the horizontal direction (e.g., the Y direction). Each of terminals 13A and 13B faces the horizontal direction (e.g., the X direction).

[0024] Each terminal 13 has a mounting hole 13h into which a fastening member 41 (e.g., a screw or bolt), described later, is inserted. The mounting hole 13h opens horizontally (e.g., in the +X direction). In this embodiment, the fastening member 41 is inserted into the mounting hole 13h from the X direction (e.g., from the +X direction side). The inner circumferential surface of the mounting hole 13h of the electronic component 10 has a screw groove. The mounting hole 13h is a bottomed hole provided in the electronic component 10.

[0025] (Mounting part) The mounting portion 14 is a part for fixing the electronic component 10. The mounting portion 14 is superimposed in the Z direction on a fixing portion 5f (e.g., a boss, see Figure 2) provided on the first wall portion 5a or the second wall portion 5b of the housing 5. The mounting portion 14 has a mounting hole 14h into which a fastening member 19 (e.g., a screw or bolt) is inserted (see Figure 3). The mounting hole 14h is open in the Z direction. The mounting hole 14h is a through hole through which the fastening member 19 passes. The mounting portion 14 is fixed to the fixing portion 5f of the housing 5 by the fastening member 19. With this configuration, the electronic component 10 is fixed to the housing 5. Alternatively, the electronic component 10 may be fixed to the base member 6 or base member 7 described above.

[0026] <A3.バスバー> Next, returning to Figure 1, we will describe the busbar 30. The busbar 30 is a wiring material that electrically connects multiple connection targets. The busbar 30 is made of metal (for example, copper, copper alloy, aluminum, or aluminum alloy) and is conductive. The busbar 30 electrically connects a first connection target (first component) and a second connection target (second component). For example, the busbar 30 electrically connects an electronic component 10 to another busbar 9 in the electrical connection unit 1. The electronic component 10 is an example of the "first connection target" or "first component". The busbar 9 is an example of the "second connection target" or "second component". The busbar 30 is an example of a "wiring material". In this disclosure, the term "wiring material" is not limited to the busbar 30. Connection components 120, which will be described later, are also examples of "wiring materials". In this disclosure, "connecting component" means a component that is placed between a cable (e.g., a busbar) and an object to be connected (e.g., an electronic component or another busbar) and connects the cable (e.g., a busbar) and the object to be connected.

[0027] Furthermore, the first and second connection targets are not limited to the examples above. The connection target can be any one of the following: an electronic component, a connection component, another busbar in the electrical connection unit 1, or a busbar for external connection. For example, busbar 30 may electrically connect electronic component 10 (first connection target) to another electronic component 10 (second connection target). Below, as an example of busbar 30, a busbar 30 that electrically connects electronic component 10 (first connection target) to another busbar 9 (second connection target) in the electrical connection unit 1 will be described. However, in the following description, the terms "electronic component 10" and "busbar 9" may be appropriately replaced with other components based on the above-mentioned intent.

[0028] As shown in Figure 1, the busbar 30 has, for example, a first connecting portion 31, a second connecting portion 32, and an extension portion 33. In this embodiment, the entire busbar 30, including the first connecting portion 31, the second connecting portion 32, and the extension portion 33, is formed from a single sheet of material (for example, formed by bending a single sheet of material).

[0029] (First connection section) The first connection portion 31 is the portion that connects to the first object to be connected (e.g., the electronic component 10). The first connection portion 31 is located in the middle of the bus bar 30 or at the first end of the bus bar 30. In this embodiment, the first connection portion 31 is positioned upright in the Z direction. The first connection portion 31 is a plate portion that runs along the Y and Z directions. The first connection portion 31 is adjacent to the electronic component 10 in the X direction. When viewed from the X direction, the first connection portion 31 includes a portion that overlaps with the terminal 13 of the electronic component 10. In another view, when viewed from the X direction, the first connection portion 31 includes a portion that overlaps with the fastening member 41 inserted into the terminal 13 or the washer 42 through which the fastening member 41 passes.

[0030] The first connecting portion 31 has a mounting hole 31h into which a fastening member 41 is inserted from the X direction (for example, from the +X direction). The mounting hole 31h does not have, for example, a screw thread. The mounting hole 31h is, for example, a through hole that penetrates the first connecting portion 31 in the X direction. The mounting hole 31h of the first connecting portion 31 faces the mounting hole 13h of the electronic component 10 in the X direction. The fastening member 41 is inserted into the mounting hole 31h of the first connecting portion 31 along the X direction. The fastening member 41 passed through the mounting hole 31h of the first connecting portion 31 engages with the mounting hole 13h of the electronic component 10. This configuration physically and electrically connects the first connecting portion 31 of the busbar 30 to the terminal 13 of the electronic component 10.

[0031] (Second connection point) The second connecting portion 32 is the portion that connects to a second connection target (for example, another busbar 9). The second connecting portion 32 is located in the middle of the busbar 30 or at the second end of the busbar 30. In this embodiment, the second connecting portion 32 is parallel to the first wall portion 5a of the housing 5. The second connecting portion 32 is a plate portion that runs along the X and Y directions. The second connecting portion 32 overlaps with the end of the busbar 9 in the Z direction. When viewed from the Z direction, the second connecting portion 32 includes a portion that overlaps with the fastening member 45 or the washer 46 through which the fastening member 45 passes, which will be described later. In this embodiment, the busbar 9 has a mounting hole 9h through which the fastening member 45 is inserted, penetrating the busbar 9 in the Z direction. The mounting hole 9h does not have, for example, a screw thread.

[0032] The second connecting portion 32 has a mounting hole 32h into which a fastening member 45 (e.g., a screw or bolt) is inserted. The mounting hole 32h does not have, for example, a screw thread. The mounting hole 32h is, for example, a through hole that penetrates the second connecting portion 32 in the Z direction. The mounting hole 32h of the second connecting portion 32 faces the mounting hole 9h of the busbar 9 in the Z direction. The fastening member 45 is inserted along the Z direction into the mounting hole 32h of the second connecting portion 32 and the mounting hole 9h of the busbar 9. An engaging member 47 (e.g., a nut) is engaged with the tip of the fastening member 45 that has passed through the mounting hole 32h of the second connecting portion 32 and the mounting hole 9h of the busbar 9. This configuration physically and electrically connects the second connecting portion 32 of the busbar 30 to another busbar 9.

[0033] Alternatively, instead of the above example, either the mounting hole 32h of the second connecting portion 32 or the mounting hole 9h of the busbar 9 may have a screw groove so that the fastening member 45 can engage with it. In this case, the engaging member 47 may be omitted.

[0034] (extension part) The extension portion 33 is provided between the first connecting portion 31 and the second connecting portion 32. The extension portion 33 extends from the first connecting portion 31 toward the second connecting portion 32. The extension portion 33 extends across the first connecting portion 31 and the second connecting portion 32. The extension portion 33 connects the first connecting portion 31 and the second connecting portion 32. In this embodiment, the extension portion 33 bends in the -X direction from the -Z direction end of the first connecting portion 31 and extends along the X direction.

[0035] Next, we will describe the arrangement of the multiple busbars 30. As shown in Figure 3, the electrical connection unit 1 has multiple busbars 30, including a first busbar 30A and a second busbar 30B. In the following, when the first busbar 30A and the second busbar 30B are not distinguished, they will simply be referred to as "busbar 30".

[0036] The first connection part 31 of the first bus bar 30A is adjacent to the first terminal 13A of the electronic component 10 in the X direction. The first connection part 31 of the first bus bar 30A is fixed to the first terminal 13A of the electronic component 10 by a fastening member 41 (fastening member 41A) inserted into the mounting hole 31h of the first connection part 31 of the first bus bar 30A from the X direction. The first bus bar 30A is an example of a "first wiring material". The mounting hole 31h of the first connection part 31 of the first bus bar 30A is an example of a "first mounting hole". The fastening member 41A is an example of a "first fastening member".

[0037] The second bus bar 30B is adjacent to the first bus bar 30A in the Y direction. The first connection part 31 of the second bus bar 30B is adjacent to the second terminal 13B of the electronic component 10 in the X direction. The first connection part 31 of the second bus bar 30B is fixed to the second terminal 13B of the electronic component 10 by a fastening member 41 (fastening member 41B) inserted into the mounting hole 31h of the first connection part 31 of the second bus bar 30B from the X direction. The second bus bar 30B is an example of a "second wiring material". The mounting hole 31h of the first connection part 31 of the second bus bar 30B is an example of a "second mounting hole". The fastening member 41B is an example of a "second fastening member".

[0038] <A4. Heat storage unit> Next, the heat storage unit HU will be described. The heat storage unit HU is a structure for enhancing the thermal characteristics (e.g., heat storage property and / or heat dissipation property) of the electrical connection unit 1. The heat storage unit HU has, for example, a plurality of metal parts 50 and a holder member 60.

[0039] <A4.1 Metal part> The metal part 50 is a metal member that stores heat (absorbs heat) at least a part of the heat generated by the first connection target (electronic component 10) or the second connection target, and / or at least a part of the heat generated by the wiring material (e.g., bus bar 30) itself. Instead of / In addition to the above example, the metal part 50 may be a member that reduces heat interference from an external device (external connection bus bar) to the electronic component 10. The metal part 50 is, for example, made of copper, copper alloy, aluminum, or aluminum alloy, but is not limited to these examples.

[0040] In this embodiment, the metal part 50 is a metal plate portion (e.g., a metal sheet material) oriented along the Y and Z directions. The thickness T50 of the metal part 50 in the X direction is, for example, the same as the thickness T31 of the first connection portion 31 of the busbar 30 in the X direction (see Figure 1). However, the thickness T50 of the metal part 50 in the X direction may be greater than or less than the thickness T31 of the first connection portion 31 of the busbar 30 in the X direction. The metal part 50 may be a metal block oriented in the vertical direction instead of a metal sheet material oriented in the vertical direction. For example, the thickness T50 of the metal part 50 in the X direction may be twice or more the thickness T31 of the first connection portion 31 of the busbar 30 in the X direction.

[0041] The metal part 50 is positioned parallel to the first connection portion 31 of the bus bar 30. The metal part 50 is adjacent to the first connection portion 31 of the bus bar 30 in the X direction. In this embodiment, the metal part 50 is located between the electronic component 10 and the first connection portion 31 of the bus bar 30 in the X direction. Alternatively, the metal part 50 may be located on the opposite side of the first connection portion 31 of the bus bar 30 from the electronic component 10 in the X direction. An example of this case will be described later as a modification of the first embodiment.

[0042] The metal part 50 has a mounting hole 50h into which the fastening member 41 is inserted from the X direction (for example, from the +X direction). The mounting hole 50h is a through hole that penetrates the metal part 50 in the X direction. The mounting hole 50h does not have, for example, a screw thread. The mounting hole 50h of the metal part 50 faces the mounting hole 31h of the first connection part 31 of the busbar 30 in the X direction. The fastening member 41 described above is inserted into the mounting hole 50h of the metal part 50 from the X direction. In this embodiment, the fastening member 41 is passed through the mounting hole 31h of the first connection part 31 and the mounting hole 50h of the metal part 50 and engages with the mounting hole 13h of the electronic component 10. The metal part 50 is fastened together with the first connection part 31 of the busbar 30 by inserting the fastening member 41 into the mounting hole 50h. In other words, the metal part 50 and the first connection part 31 of the busbar 30 are fastened together to the terminal 13 of the electronic component 10 by the fastening member 41.

[0043] Next, the arrangement of the multiple metal parts 50 will be described. As shown in FIG. 3, the electrical connection unit 1 has, as a plurality of metal parts 50, a first metal part 50A and a second metal part 50B. In the following, when the first metal part 50A and the second metal part 50B are not distinguished, they are simply referred to as "metal part 50".

[0044] The first metal part 50A is adjacent to the first connection part 31 of the first bus bar 30A in the X direction. The mounting hole 50h of the first metal part 50A faces the mounting hole 31h of the first connection part 31 of the first bus bar 30A in the X direction. The first metal part 50A is fastened together with the first connection part 31 of the first bus bar 30A by inserting a fastening member 41A into the mounting hole 50h of the first metal part 50A from the X direction. That is, the first metal part 50A and the first connection part 31 of the first bus bar 30A are fastened together to the first terminal 13A of the electronic component 10 by the fastening member 41A. The mounting hole 50h of the first metal part 50A is an example of the "third mounting hole".

[0045] The second metal part 50B is adjacent to the first metal part 50A in the Y direction. The second metal part 50B is adjacent to the first connection part 31 of the second bus bar 30B in the X direction. The mounting hole 50h of the second metal part 50B faces the mounting hole 31h of the first connection part 31 of the second bus bar 30B in the X direction. The second metal part 50B is fastened together with the first connection part 31 of the second bus bar 30B by inserting a fastening member 41B into the mounting hole 50h of the second metal part 50B from the X direction. That is, the second metal part 50B and the first connection part 31 of the second bus bar 30B are fastened together to the second terminal 13B of the electronic component 10 by the fastening member 41B. The mounting hole 50h of the second metal part 50B is an example of the "fourth mounting hole".

[0046] <A4.2 Holder member> FIG. 4 is a diagram showing a holder member 60. The holder member 60 is a member for integrating the first metal part 50A and the second metal part 50B. The holder member 60 has, for example, a main body part 61 and an engaging part 62.

[0047] (Main body part) The main body portion 61 is the part that integrally holds the first metal portion 50A and the second metal portion 50B. The main body portion 61 is formed in the shape of a frame that surrounds the outer circumference of the first metal portion 50A and the second metal portion 50B, for example. The main body portion 61 is made of synthetic resin, for example, and has insulating properties. The main body portion 61 is integrally formed with the first metal portion 50A and the second metal portion 50B, for example, by insert molding. That is, in this embodiment, the first metal portion 50A, the second metal portion 50B, and the holder member 60 are provided as a single piece of material. Note that the structure for integrating the first metal portion 50A and the second metal portion 50B with the main body portion 61 is not limited to the above example. For example, the first metal portion 50A and the second metal portion 50B may be integrated with the main body portion 61 by a structure using adhesive or welding, etc.

[0048] In this embodiment, the main body 61 has, for example, a first portion 61a, a second portion 61b, a third portion 61c, a fourth portion 61d, and a fifth portion 61e.

[0049] The first portion 61a is located on the +Z side relative to the first metal portion 50A and the second metal portion 50B. The first portion 61a extends linearly in the Y direction. The second portion 61b is located on the -Z side relative to the first metal portion 50A and the second metal portion 50B. The second portion 61b extends linearly in the Y direction. The first metal portion 50A and the second metal portion 50B are sandwiched by the first portion 61a and the second portion 61b from the +Z side and the -Z side, respectively.

[0050] The third portion 61c is located on the -Y direction side with respect to the first metal portion 50A and the second metal portion 50B. The third portion 61c extends linearly in the Z direction. The fourth portion 61d is located on the +Y direction side with respect to the first metal portion 50A and the second metal portion 50B. The fourth portion 61d extends linearly in the Z direction. The first metal portion 50A and the second metal portion 50B are sandwiched from the +Y direction side and the -Y direction side by the third portion 61c and the fourth portion 61d.

[0051] The fifth portion 61e is positioned between the first metal portion 50A and the second metal portion 50B in the Y direction. The fifth portion 61e extends in the Z direction. The fifth portion 61e electrically insulates the first metal portion 50A and the second metal portion 50B.

[0052] Each of the first metal part 50A and the second metal part 50B is held by the main body 61 and exposed to the outside of the heat storage unit HU in the +X direction and the -X direction. Therefore, each of the first metal part 50A and the second metal part 50B can easily contact the terminal 13 of the electronic component 10 in the X direction, and can also easily contact the first connection part 31 of the busbar 30 in the X direction.

[0053] (Engaging part) The engaging portion 62 is the part that engages with the insulating rib 11a of the electronic component 10. In this embodiment, the engaging portion 62 includes a slit-shaped opening 62g extending in the Z direction. The opening 62g is provided, for example, in the fifth portion 61e of the main body 61. That is, the opening 62g is located between the first metal portion 50A and the second metal portion 50B in the Y direction. The opening 62g is open, for example, on the -Z side. The opening 62g penetrates the main body 61 in the X direction.

[0054] In this embodiment, the engaging portion 62 can be attached to the insulating rib 11a from the Z direction. For example, the engaging portion 62 can be attached to the insulating rib 11a of the electronic component 10 from the +Z direction side by inserting the insulating rib 11a of the electronic component 10 into the opening 62g along the Z direction. The holder member 60 is attached to the insulating rib 11a of the electronic component 10 from the Z direction. Alternatively / in addition to the above example, the engaging portion 62 may also be attached to the insulating rib 11a from the X direction (for example, from the +X direction side).

[0055] Figure 5 shows the method for installing the heat storage unit HU. In this embodiment, the heat storage unit HU is attached to the insulating rib 11a of the electronic component 10 before the busbar 30 is attached to the terminal 13 of the electronic component 10.

[0056] For example, the heat storage unit HU is moved downward from a state where the engaging portion 62 of the holder member 60 is positioned above the insulating rib 11a of the electronic component 10. This operation causes the insulating rib 11a of the electronic component 10 to be inserted into the opening 62g of the engaging portion 62 of the holder member 60 from the -Z direction side and engage with the opening 62g. This engagement causes the mounting hole 50h of the first metal part 50A to face the mounting hole 13h of the first terminal 13A of the electronic component 10 in the X direction, and the mounting hole 50h of the second metal part 50B to face the mounting hole 13h of the second terminal 13B of the electronic component 10 in the X direction. This operation positions the heat storage unit HU relative to the electronic component 10.

[0057] In this embodiment, after the heat storage unit HU is positioned relative to the electronic component 10, the mounting hole 31h of the first connection portion 31 of the first bus bar 30A is positioned so that it faces the mounting hole 50h of the first metal portion 50A in the X direction. Then, the first fastening member 41A is inserted into the mounting hole 31h of the first bus bar 30A and the mounting hole 50h of the first metal portion 50A. The tip of the first fastening member 41A, which has passed through the mounting hole 31h of the first bus bar 30A and the mounting hole 50h of the first metal portion 50A, is engaged with the mounting hole 13h of the first terminal 13A of the electronic component 10. Through this operation, the first connection portion 31 of the first bus bar 30A and the first metal portion 50A are fixed to the first terminal 13A of the electronic component 10 by fastening together.

[0058] Similarly, in this embodiment, after the heat storage unit HU is positioned relative to the electronic component 10, the mounting hole 31h of the first connection portion 31 of the second bus bar 30B is positioned so that it faces the mounting hole 50h of the second metal portion 50B in the X direction. The second fastening member 41B is then inserted into the mounting hole 31h of the second bus bar 30B and the mounting hole 50h of the second metal portion 50B. The tip of the second fastening member 41B, which has passed through the mounting hole 31h of the second bus bar 30B and the mounting hole 50h of the second metal portion 50B, is then engaged with the mounting hole 13h of the second terminal 13B of the electronic component 10. This process fixes the first connection portion 31 of the second bus bar 30B and the second metal portion 50B to the second terminal 13B of the electronic component 10 by fastening them together.

[0059] Instead of the above example, the opening 62g of the engaging portion 62 may be a groove that is open in the -X direction. In this case, the heat storage unit HU may be attached to the terminal 13 of the electronic component 10 from the X direction.

[0060] <A5. Advantages> As a comparative example, an electrical connection unit without the holder member 60 will be described. In such a configuration, when the first bus bar 30A and the first metal part 50A are clamped together with respect to the first terminal 13A of the electronic component 10, the first metal part 50A can rotate with respect to the first bus bar 30A as the first fastening member 41A rotates. For this reason, it is necessary to provide a first rotation prevention mechanism to prevent the first metal part 50A from rotating with respect to the first bus bar 30A. Such a first rotation prevention mechanism includes, for example, a first through hole provided in the first bus bar 30A and a first hook provided in the first metal part 50A and inserted into the first through hole.

[0061] Similarly, when the second bus bar 30B and the second metal part 50B are clamped together with respect to the second terminal 13B of the electronic component 10, the second metal part 50B can rotate with respect to the second bus bar 30B as the second fastening member 41B rotates. For this reason, it is necessary to provide a second rotation prevention mechanism to prevent the second metal part 50B from rotating with respect to the second bus bar 30B. Such a second rotation prevention mechanism includes, for example, a second through hole provided in the second bus bar 30B and a second hook provided in the second metal part 50B and inserted into the second through hole.

[0062] In the configuration of such a comparative example, it is necessary to insert the first hook provided on the first metal part 50A into the first through hole provided in the first bus bar 30A and to insert the second hook provided on the second metal part 50B into the second through hole provided in the second bus bar 30B, which makes it difficult to improve the assembly workability of the electrical connection unit.

[0063] In this embodiment, the electrical connection unit (e.g., electrical connection unit 1) includes an electronic component (e.g., electronic component 10), a first cable guide (e.g., first busbar 30A), a second cable guide (e.g., second busbar 30B), a first metal part (e.g., first metal part 50A), a second metal part (e.g., second metal part 50B), and a holder member (e.g., holder member 60). The electronic component has a first terminal (e.g., first terminal 13A), a second terminal (e.g., second terminal 13B), and an insulating rib (e.g., insulating rib 11a). The insulating rib is located between the first terminal and the second terminal when viewed from a first direction (e.g., the X direction). The first cable guide has a first mounting hole (e.g., mounting hole 31h) and is fixed to the first terminal by a first fastening member (e.g., first fastening member 41A) inserted into the first mounting hole from the first direction. The second cable member has a second mounting hole (e.g., mounting hole 31h) and is fixed to the second terminal by a second fastening member (e.g., second fastening member 41B) inserted into the second mounting hole from the first direction. The first metal part has a third mounting hole (e.g., mounting hole 50h) facing the first mounting hole and is fastened together with the first cable member by inserting the first fastening member into the third mounting hole. The second metal part has a fourth mounting hole (e.g., mounting hole 50h) facing the second mounting hole and is fastened together with the second cable member by inserting the second fastening member into the fourth mounting hole. The holder member integrally holds the first metal part and the second metal part and is attached to the insulating rib.

[0064] With this configuration, the rotation of the first metal part relative to the first cable member and the rotation of the second metal part relative to the second cable member can be suppressed by a single operation of attaching the holder member to the insulating rib of the electronic component. In other words, the rotation of the first and second metal parts can be restricted with fewer operations compared to the configuration of the comparative example. This configuration improves the ease of assembly of the electrical connection unit.

[0065] In this embodiment, the holder member has an engaging portion (for example, engaging portion 62) that can be attached to the insulating rib from a second direction (for example, the Z direction) that intersects the first direction. According to such a configuration, alignment and rotation restriction of the first metal part with respect to the first wiring material and alignment and rotation restriction of the second metal part with respect to the second wiring material can be realized by a simple operation of moving the holder member from above downward. Thereby, further improvement in the assemblability of the electrical connection unit can be achieved.

[0066] <A6. Modified Example> Next, a modified example of the first embodiment will be described. FIG. 6 is a cross-sectional view showing the electrical connection unit 1 of the modified example of the first embodiment. In this modified example, the heat storage unit HU is located on the side opposite to the electronic component 10 with respect to the bus bar 30. That is, the first metal part 50A is located on the side opposite to the first terminal 13A of the electronic component 10 with respect to the first bus bar 30A. The second metal part 50B is located on the side opposite to the second terminal 13B of the electronic component 10 with respect to the second bus bar 30B.

[0067] Even with such a configuration, the first metal part 50A and the second metal part 50B are integrated by the holder member 60, so that the assemblability of the electrical connection unit can be improved.

[0068] (B. Second Embodiment) The second embodiment is different from the first embodiment in that the heat storage unit HU has a heat radiating part 80. The configuration other than that described below is the same as that of the first embodiment.

[0069] Figure 7 is a cross-sectional view showing an electrical connection unit 1 according to a second embodiment. In this embodiment, at least a portion of the second wall portion 5b of the housing 5 (or base member 7) is formed by a metal plate 70. The metal plate 70 is, for example, made of aluminum, an aluminum alloy, copper, or a copper alloy, but is not limited to these. The metal plate 70 is a plate portion that extends horizontally. The metal plate 70 is, for example, exposed to the outside of the electrical connection unit 1. The metal plate 70 is an example of a "heat dissipation member". The metal plate 70 may also be referred to as a "metal member". In this disclosure, the term "heat dissipation member" is not limited to a metal member provided as part of the housing 5 or base member 7. The term "heat dissipation member" in this disclosure may be a metal member provided separately from the housing 5 or base member 7.

[0070] In this embodiment, the heat storage unit HU has a plurality of heat dissipation sections 80 (see Figure 8) in addition to the configuration of the first embodiment. The heat dissipation sections 80 are parts for transferring heat from the metal section 50 to the metal plate 70. The heat dissipation sections 80 are made of metal. The heat dissipation sections 80 are made of, for example, copper, copper alloy, aluminum, or aluminum alloy, but are not limited to these examples.

[0071] In this embodiment, the heat dissipation section 80 is a metal plate portion oriented along the X and Y directions. When viewed from, for example, the Z direction, the heat dissipation section 80 faces the electronic component 10. Also, when viewed from the Z direction, the heat dissipation section 80 faces the metal plate 70. A heat transfer member 90 is provided between the heat dissipation section 80 and the metal plate 70.

[0072] The heat transfer member 90 is a member for transferring heat from the heat dissipation section 80 to the metal plate 70. The heat transfer member 90 is, for example, an elastic heat transfer sheet (e.g., a thermally conductive silicone sheet). The heat transfer member 90 is formed of a material with a higher thermal conductivity than, for example, the case 11 of the electronic component 10 or the second wall portion 5b of the housing 5. However, the heat transfer member 90 is not limited to the above example and may be a heat transfer member formed of a thermally conductive gel or other material. In this embodiment, the heat transfer member 90 is insulating.

[0073] Next, we will describe the multiple heat dissipation units 80. Figure 8 is a perspective view showing a partially disassembled electrical connection unit 1 of the second embodiment. In this embodiment, the electrical connection unit 1 has a plurality of heat dissipation sections 80, namely a first heat dissipation section 80A and a second heat dissipation section 80B. Hereafter, when the first heat dissipation section 80A and the second heat dissipation section 80B are not distinguished, they will simply be referred to as "heat dissipation section 80".

[0074] The first heat dissipation section 80A is connected to the first metal section 50A. In this embodiment, the first metal section 50A and the first heat dissipation section 80A are integrally formed by a single metal member MA (first metal member MA). The first metal member MA is, for example, a metal plate. The first metal member MA includes the first metal section 50A and the first heat dissipation section 80A. In this embodiment, the first metal section 50A and the first heat dissipation section 80A are integrally formed by bending the first metal member MA in the middle. A heat transfer member 90 (heat transfer member 90A) is arranged between the first heat dissipation section 80A and the metal plate 70.

[0075] The second heat dissipation section 80B is connected to the second metal section 50B. In this embodiment, the second metal section 50B and the second heat dissipation section 80B are integrally formed by another metal member MB (second metal member MB). The second metal member MB is, for example, a metal plate. The second metal member MB includes the second metal section 50B and the second heat dissipation section 80B. In this embodiment, the second metal section 50B and the second heat dissipation section 80B are integrally formed by bending the second metal member MB in the middle. Another heat transfer member 90 (heat transfer member 90B) is positioned between the second heat dissipation section 80B and the metal plate 70.

[0076] In this embodiment, the first metal part 50A and the second metal part 50B are held by the holder member 60, thereby integrating the first metal part 50A, the first heat dissipation part 80A, the second metal part 50B, the second heat dissipation part 80B, and the holder member 60. This configuration further improves the ease of assembly of the electrical connection unit.

[0077] (C. Third Embodiment) The third embodiment differs from the first embodiment in that the heat storage unit HU has a metal portion 110 that faces the side surface of the electronic component 10. Except for the configuration described below, the configuration is the same as that of the first embodiment.

[0078] (Metal parts) Figure 9 is a perspective view showing a disassembled portion of the electrical connection unit 1 of the third embodiment. In this embodiment, the heat storage unit HU has a plurality of metal parts 110 in addition to the configuration of the first embodiment. The metal parts 110 are parts that allow heat from the electronic components 10 to be released to the outside through a different path than the terminals 13. The metal parts 110 are made of metal. The metal parts 110 are made of, for example, copper, copper alloy, aluminum, or aluminum alloy, but are not limited to these examples.

[0079] In this embodiment, the electrical connection unit 1 has, for example, a plurality of metal parts 110, including a third metal part 110A and a fourth metal part 110B. In the following description, when the third metal part 110A and the fourth metal part 110B are not distinguished, they will simply be referred to as "metal part 110".

[0080] The third metal portion 110A is a metal plate portion (e.g., a metal sheet material) that is aligned with the X and Z directions. The third metal portion 110A faces the electronic component 10 in the Y direction. The third metal portion 110A is parallel to the end face (surface) of the electronic component 10 on the -Y direction side. For example, the third metal portion 110A faces the electronic component 10 from the -Y direction side. In this embodiment, the third metal portion 110A is separated from the first metal portion 50A and the second metal portion 50B.

[0081] Similarly, the fourth metal portion 110B is a metal plate portion (e.g., a metal sheet material) along the X and Z directions. The fourth metal portion 110B faces the electronic component 10 in the Y direction. The fourth metal portion 110B is parallel to the end face (surface) of the electronic component 10 on the +Y direction side. The fourth metal portion 110B faces the electronic component 10 from, for example, the +Y direction side. In this embodiment, the fourth metal portion 110B is separated from the first metal portion 50A and the second metal portion 50B.

[0082] Figure 10 is a cross-sectional view showing the electronic component 10 and heat storage unit HU of the third embodiment. In this embodiment, one heat transfer member 90 (heat transfer member 90C) is placed between the third metal part 110A and the electronic component 10. The heat transfer member 90C transfers a portion of the heat generated by the electronic component 10 to the third metal part 110A. In this embodiment, another heat transfer member 90 (heat transfer member 90D) is placed between the fourth metal part 110B and the electronic component 10. The heat transfer member 90D transfers a portion of the heat generated by the electronic component 10 to the fourth metal part 110B.

[0083] (Holder component) Next, we will return to Figure 9 and describe the holder member 60. In this embodiment, the main body 61 of the holder member 60 integrally holds the first metal part 50A, the second metal part 50B, the third metal part 110A, and the fourth metal part 110B. The main body 61 is integrally formed with the first metal part 50A, the second metal part 50B, the third metal part 110A, and the fourth metal part 110B, for example, by insert molding. Note that the structure for integrating the first to fourth metal parts 50A, 50B, 110A, 110B with the main body 61 is not limited to the above example. For example, the first to fourth metal parts 50A, 50B, 110A, 110B may be integrated with the main body 61 by a structure using adhesive or welding. In addition to the above configuration, the heat transfer member 90 may also be formed integrally with the main body portion 61 of the holder member 60, for example, by insert molding or by other means.

[0084] In this embodiment, the third metal part 110A and the fourth metal part 110B are positioned by attaching the engaging portion 62 of the holder member 60 to the insulating rib 11a of the electronic component 10. The third metal part 110A and the fourth metal part 110B are supported via the holder member 60 by fixing the first metal part 50A and the second metal part 50B to the electronic component 10 by the fastening member 41.

[0085] Even with this configuration, for example, the assembly of the electrical connection unit can be improved by integrating the first metal part and the second metal part with a holder member.

[0086] In this embodiment, the electrical connection unit further comprises a third metal part (for example, a third metal part 110A). The third metal part faces the electronic component from a third direction intersecting the first direction. The holder member integrally holds the first metal part, the second metal part, and the third metal part. With this configuration, the third metal part is integrated with the first and second metal parts by the holder member, thereby further improving the ease of assembly of the electrical connection unit.

[0087] In this embodiment, the electrical connection unit further includes a heat transfer member (e.g., heat transfer member 90) provided between the third metal part and the electronic component. With this configuration, at least a portion of the heat generated by the electronic component 10 can be efficiently transferred to the third metal part. This improves the heat dissipation performance of the electrical connection unit.

[0088] (D. Fourth Embodiment) The fourth embodiment differs from the third embodiment in that the third metal part 110A and the first metal part 50A are formed from a single metal member MC, and the fourth metal part 110B and the second metal part 50B are formed from a single metal member MD. Other than the configuration described below, the configuration is the same as that of the third embodiment.

[0089] Figure 11 is a perspective view showing a disassembled portion of the electrical connection unit 1 of the fourth embodiment. Figure 12 is a cross-sectional view showing the electronic component 10 and the heat storage unit HU of the fourth embodiment. In this embodiment, the third metal part 110A is connected to the first metal part 50A. In this embodiment, the first metal part 50A and the third metal part 110A are integrally formed by a single metal member MC. The metal member MC is, for example, a metal plate. The metal member MC includes the first metal part 50A and the third metal part 110A. In this embodiment, the first metal part 50A and the third metal part 110A are integrally formed by bending the metal member MC in the middle.

[0090] Similarly, in this embodiment, the fourth metal part 110B is connected to the second metal part 50B. In this embodiment, the second metal part 50B and the fourth metal part 110B are integrally formed by another metal member MD. The metal member MD is, for example, a metal sheet. The metal member MD includes the second metal part 50B and the fourth metal part 110B. In this embodiment, the second metal part 50B and the fourth metal part 110B are integrally formed by bending the metal member MD in the middle.

[0091] Even with this configuration, for example, the assembly of the electrical connection unit can be improved by integrating the first metal part 50A and the second metal part 50B with the holder member 60. Furthermore, the assembly of the electrical connection unit can be further improved by integrating the third metal part with the holder member in addition to the first and second metal parts.

[0092] In this embodiment, the first metal part (e.g., the first metal part 50A) and the third metal part (e.g., the third metal part 110A) are formed from a single metal member (e.g., metal member MC). With this configuration, when the terminal 13 becomes hot, some of the heat from the terminal 13 can be transferred to the third metal part via the first metal part and dissipated from the third metal part. This further improves the heat dissipation performance of the electrical connection unit.

[0093] (E. Fifth Embodiment) The fifth embodiment differs from the first embodiment in that a connecting component 120 is provided. Except for the configuration described below, the configuration is the same as that of the first embodiment.

[0094] Figure 13 is a cross-sectional view showing an electrical connection unit 1 according to a fifth embodiment. In this embodiment, the electrical connection unit 1 has a connecting component 120. The connecting component 120 is a member that electrically connects a first connection target (electronic component 10) and a second connection target (busbar 30). The connecting component 120 forms part of the current-carrying path of the electrical connection unit 1. The connecting component 120 is made of metal (for example, copper, copper alloy, aluminum, or aluminum alloy). The connecting component 120 is an example of a "wire routing member".

[0095] The connecting component 120 has, for example, a first connecting portion 121 and a second connecting portion 122. In this embodiment, the entire connecting component 120, including the first connecting portion 121 and the second connecting portion 122, is formed from a single plate material.

[0096] (First connection section) The first connecting portion 121 is the portion that connects to the first object to be connected (for example, an electronic component 10). The first connecting portion 121 is located at the first end of the connecting component 120. In this embodiment, the first connecting portion 121 is arranged in an upright position in the Z direction. The first connecting portion 121 is a plate portion that is aligned along the Y and Z directions. The first connecting portion 121 has a mounting hole 121h into which the fastening member 41 is inserted.

[0097] (Second connection point) The second connecting portion 122 is the portion that connects to the second connection target (e.g., the bus bar 30). The second connecting portion 122 is located at the second end of the connecting component 120. In this embodiment, the second connecting portion 122 is a plate portion that is aligned with the X and Y directions. In this embodiment, the first connecting portion 31 of the bus bar 30 is a plate portion that is aligned with the horizontal direction. The second connecting portion 122 overlaps with the first connecting portion 31 of the bus bar 30 in the Z direction. The second connecting portion 122 has a mounting hole 122h into which the fastening member 45 is inserted.

[0098] Next, the arrangement of the multiple connecting components 120 will be described. Figure 14 is a perspective view showing a part of the electrical connection unit 1 in an exploded view. The electrical connection unit 1 has a plurality of connection components 120, including a first connection component 120A and a second connection component 120B.

[0099] The first connection portion 121 of the first connecting component 120A is adjacent to the first terminal 13A of the electronic component 10 in the X direction. The first connection portion 121 of the first connecting component 120A is fixed to the first terminal 13A of the electronic component 10 by a fastening member 41 (fastening member 41A) inserted into the mounting hole 31h of the first connection portion 121 of the first connecting component 120A. The first connecting component 120A is an example of the "first wiring member". The mounting hole 121h of the first connection portion 121 of the first connecting component 120A is an example of the "first mounting hole". The fastening member 41A is an example of the "first fastening member".

[0100] The second connecting component 120B is adjacent to the first connecting component 120A in the Y direction. The first connecting portion 121 of the second connecting component 120B is adjacent to the second terminal 13B of the electronic component 10 in the X direction. The first connecting portion 121 of the second connecting component 120B is fixed to the second terminal 13B of the electronic component 10 by a fastening member 41 (fastening member 41B) inserted into the mounting hole 121h of the first connecting portion 121 of the second connecting component 120B. The second connecting component 120B is an example of a "second wiring member". The mounting hole 121h of the first connecting portion 121 of the second connecting component 120B is an example of a "second mounting hole". The fastening member 41B is an example of a "second fastening member".

[0101] The details of the fifth embodiment, other than those described above, are the same as those of the first embodiment described above. For example, the details of the fifth embodiment can be described in the description of the first embodiment above by replacing "bus bar 30" with "connecting part 120", "first connecting part 31" with "first connecting part 121", and "mounting hole 31h" with "mounting hole 121h".

[0102] With this configuration, as in the first embodiment, it is possible to improve the thermal characteristics of the electrical connection unit.

[0103] Several embodiments and variations have been described above. However, the embodiments and variations are not limited to the examples described above. For example, the above-described embodiments or variations may be implemented in combination with each other. For example, a variation of the first embodiment may be implemented in combination with the second, third, fourth, or fifth embodiment. Also, the fifth embodiment may be implemented in combination with the second, third, or fourth embodiment. [Explanation of Symbols]

[0104] 1…Electrical connection unit 10…Electronic components 13… Terminals 13A…1st terminal 13B…Second terminal 13h... Mounting holes 30... Bus bar (rope material) 30A...First busbar (first cable member) 30B...Second busbar (second cable member) 31h…Mounting holes 41… Fastening member 41A…Fastening member (first fastening member) 41B…Fastening member (second fastening member) 50…Metal parts 50A...First metal part 50B…Second metal part 50h…Mounting holes 60…Holder component 61...Main body 62...Engaging part 62g…Aperture 70… Metal plate 90, 90A, 90B... Heat transfer components 110A…Third metal part 110B…4th metal part 120...Connecting parts (wiring materials) 121h… 120A...First connecting component (first cable material) 120B...Second connecting component (second cable material) MA, MB, MC, MD... Metal components

Claims

1. An electronic component having a first terminal, a second terminal, and an insulating rib positioned between the first terminal and the second terminal when viewed from a first direction, A first cable member having a first mounting hole and fixed to the first terminal by a first fastening member inserted into the first mounting hole from the first direction, A second cable member having a second mounting hole and fixed to the second terminal by a second fastening member inserted into the second mounting hole from the first direction, A first metal part having a third mounting hole facing the first mounting hole, the first fastening member being inserted into the third mounting hole and fastened together with the first cable member, A second metal part having a fourth mounting hole facing the second mounting hole, the second fastening member being inserted into the fourth mounting hole and fastened together with the second cable member, A holder member is attached to the insulating rib and integrally holds the first metal part and the second metal part. An electrical connection unit equipped with [a specific feature].

2. The holder member has an engaging portion that can be attached to the insulating rib from a second direction intersecting the first direction. The electrical connection unit according to claim 1.

3. The present invention further comprises a third metal portion facing the electronic component from a third direction intersecting the first direction, The holder member integrally holds the first metal part, the second metal part, and the third metal part. The electrical connection unit according to claim 1 or claim 2.

4. The third metal part and the electronic component are further provided with a heat transfer member, The electrical connection unit according to claim 3.

5. The first metal part and the third metal part are formed from a single metal member. The electrical connection unit according to claim 3.

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