Electrical connection device

Abstract

According to one embodiment, an electrical connection device includes an electronic element having a first terminal, a first metal block, and an insulating portion. The first metal block is adjacent to the first terminal in a first direction and is electrically connected to the first terminal. The first metal block has an end surface along the first direction and a peripheral surface extending from a peripheral edge of the end surface in the first direction. The insulating portion covers at least a portion of the peripheral surface.

Description

Technical Field

[0001] Embodiments of the present invention relate to an electrical connection device. Background Technology

[0002] In electrical connection devices, electronic components such as relays and resistors are known to be mounted on the mounting surface of the housing.

[0003] In the electrical connection device described in Patent Document 1, the relay is mounted on the mounting surface of the housing. To improve the heat dissipation performance of the relay electronic components, plate-shaped members bent into an L-shape are connected side-by-side to the two terminals of each relay; these plate-shaped members serve as heat dissipation components.

[0004] Citation List

[0005] Patent documents

[0006] Patent Document 1: Japanese Unexamined Patent Application, First Publication No. 2022-123489 Summary of the Invention

[0007] In the electrical connection device described in Patent Document 1, when heat dissipation components connected to the terminals are arranged side by side, it may be necessary to ensure a certain insulation distance.

[0008] This embodiment provides an electrical connection device that can ensure insulation distance.

[0009] According to this embodiment, an electrical connection device includes: an electronic component having a first terminal, a first metal block, and an insulating portion. The first metal block is adjacent to and electrically connected to the first terminal along a first direction. The first metal block has an end face along the first direction and a peripheral surface extending from the peripheral edge of the end face along the first direction. The insulating portion covers at least a portion of the peripheral surface.

[0010] According to this embodiment, insulation distance can be ensured. Attached Figure Description

[0011] Figure 1 This is a perspective view of the electrical connection device according to this embodiment.

[0012] Figure 2 This is an exploded perspective view of the electrical connection device according to this embodiment.

[0013] Figure 3 This is a partially exploded perspective view of the electrical connection device according to this embodiment.

[0014] Figure 4 This is an exploded perspective view of another part of the electrical connection device according to this embodiment.

[0015] Figure 5 This is a top view of the electrical connection device according to this embodiment.

[0016] Figure 6 It is along Figure 5 The cross-sectional view of the structure shown is taken along line F6-F6.

[0017] Figure 7 It is along Figure 5 The cross-sectional view of the structure shown is taken along line F7-F7.

[0018] Figure 8 It is along Figure 5 The cross-sectional view of the structure shown is taken along line F8-F8.

[0019] Figure 9 This is a perspective view of a portion of the electrical connection device according to this embodiment.

[0020] Figure 10 It is along Figure 9 The cross-sectional view of the structure shown is taken along line F10-F10.

[0021] Figure 11 It is along Figure 5 The cross-sectional view of the structure shown is taken along line F11-F11. Detailed description

[0022] An embodiment will now be described with reference to the accompanying drawings. In the following description, components having the same or similar functions are designated by the same reference numerals. Redundant descriptions of these components may be omitted. The components described below do not constitute a limitation on the scope of this embodiment.

[0023] In this disclosure, terms are defined as follows: The term “connection” is not limited to mechanical connections but can include electrical connections. That is, the term “connection” is not limited to the case where two connected elements are directly connected, but can include the case where two connected elements are connected through another element. The term “accommodation” is not limited to the case where the entire component is accommodated, but can include the case where only a part of the component is accommodated (the rest of the component protrudes). “Orthogonal” can include the case of “substantially orthogonal”. “Identical” can include the case of “substantially identical”.

[0024] In this disclosure, the +X direction, -X direction, +Y direction, -Y direction, +Z direction, and -Z direction are defined as follows. The +Y direction, for example, refers to the direction from which the mounting hole 20h of the heat storage member 20A (described later) opens toward the terminal 13A of the electronic component 10 (described later) (see FIG. 1). The -Y direction is the direction opposite to the +Y direction. Hereinafter, without distinguishing between the +Y and -Y directions, the +Y and -Y directions will be collectively referred to as the "Y direction." The +X and -X directions are directions that intersect (e.g., are orthogonal) the Y direction. The +X direction, for example, refers to the direction from terminal 13B of the electronic component 10 (described later) toward terminal 13A (see FIG. 1). Figure 4 The -X direction is the direction opposite to the +X direction. Hereinafter, unless otherwise distinguished, the +X and -X directions will be collectively referred to as the "X direction". The +Z and -Z directions are directions that intersect (e.g., are orthogonal) the X and Y directions. The +Z direction is a direction of the Z direction. The -Z direction is the direction opposite to the +Z direction. Hereinafter, unless otherwise distinguished, the +Z and -Z directions will be collectively referred to as the "Z direction". The Y direction is an example of a "first direction". The Z direction is an example of a "third direction". The X direction is an example of a "second direction".

[0025] Hereinafter, the X and Y directions will not be distinguished and will be collectively referred to as the "horizontal direction". Hereinafter, the Z direction will be collectively referred to as the "vertical direction". Hereinafter, the +Z direction side will be referred to as the "upper side" and the -Z direction side will be referred to as the "lower side". However, these descriptions are for ease of description only and do not limit the direction of gravity of the electrical connection device 1 (i.e., the installation direction of the electrical connection device 1).

[0026] <1. Composition of Electrical Connection Devices>

[0027] Figure 1 This is a perspective view of the electrical connection device 1 according to the embodiment. The electrical connection device 1 can be, for example, an on-board device installed on a vehicle such as an electric vehicle (EV), a hybrid electric vehicle (HEV), or a plug-in hybrid electric vehicle (PHEV). For example, the electrical connection device 1 may be referred to as an "electrical connection box" or "junction box." However, the electrical connection device 1 is not limited to a box-shaped device. The electrical connection device 1 is configured to contact the external cooling component CM (see [link]). Figure 1 The external cooling component CM can be, for example, a water jacket. The external cooling component CM receives heat from the electrical connection device 1 through its cooling surface CS and cools the electrical connection device 1.

[0028] Electrical connection device 1 includes, for example, housing 5, main body MU, and insulating sheet 7 (see Figure 6 ), multiple heat transfer components 8 and insulator 9.

[0029] <2. Shell>

[0030] The housing 5 is a component that forms the outer contour of the electrical connection device 1. The housing 5 is made of, for example, synthetic resin and has insulating properties. The housing 5 serves to house the main body MU. The housing 5 has an insulating base component 50 (see...). Figure 2 The base member 50 covers at least a portion of the main body MU from the -Z direction. The base member 50 is open on the +Z direction side. The housing 5 may also include a cover that covers the base member 50 from the +Z direction, if necessary.

[0031] <2.1 Base Components>

[0032] First, refer to Figure 2 and Figure 3 The base member 50 is described. The base member 50 is a support member for supporting the electronic component 10 and / or the busbar 30 (described in detail later). In this embodiment, the base member 50 can be supported by an insert nut 59 (see [link to documentation]) housed within a fixing portion 53 (described in detail later). Figure 3 The base member 50 is fixed with the busbar 30. In this embodiment, the base member 50 indirectly supports the electronic component 10 through the heat storage member 20 (described later) that overlaps with the busbar 30 housed in the receiving portion 55 (described in detail later) along the Z direction. The base member 50 supports a plurality of busbars 30 through the receiving portion 55.

[0033] Figure 2 This is an exploded perspective view of the electrical connection device 1. Figure 3 This is a partially exploded perspective view of the electrical connection device 1. The base component 50 includes, for example, a flat portion 51, a wall portion 52, a fixing portion 53, and a base portion 54.

[0034] (Plane section)

[0035] The planar portion 51 is a plate-shaped part formed in the base member 50. The planar portion 51 is plate-shaped and extends in the horizontal direction. The planar portion 51 forms the main body of the base member 50. The planar portion 51 forms the base (insulating base) of the base member 50.

[0036] The planar portion 51 has a first surface 50a and a second surface 50b. The first surface 50a is a surface facing the +Z direction. The first surface 50a is a plane extending in the horizontal direction. The first surface 50a faces the electronic component 10. The second surface 50b is located on the side opposite to the first surface 50a. The second surface 50b is a surface facing the -Z direction. The second surface 50b is a plane extending in the horizontal direction. The second surface 50b faces the external cooling component CM (see...). Figure 1 The thickness direction (plate thickness direction) of the planar portion 51 is the Z direction.

[0037] The planar portion 51, for example, has a plurality of receiving portions 55 for accommodating the busbars 30. The plurality of receiving portions 55 are formed to be spaced apart from each other in the horizontal direction. Each receiving portion 55 is, for example, a through hole extending through the planar portion 51 in the Z direction. With this structure, the busbars 30 housed in the receiving portions 55 are exposed in the -Z direction. In this embodiment, the planar portion 51 has, for example, two receiving portions 55.

[0038] Viewed from the Z-direction, the shape of each receiving portion 55 corresponds to the shape of the busbar 30 to be received. The plurality of receiving portions 55 includes, for example, two receiving portions 55B and 55C. Receiving portion 55B is used to correspond to and receive at least a portion of the busbar 30B, which will be described later. Receiving portion 55C is used to correspond to and receive at least a portion of the busbar 30C, which will be described later. Each busbar 30B and 30C received in the receiving portion 55 is received in a state exposed from the receiving portion 55 toward the -Z direction.

[0039] In this embodiment, busbars 30B and 30C and base member 50 are integrated together by insert molding. Each busbar 30B and 30C is integrated with the base member 50 without the need for fastening components such as screws or bolts. Unlike the example above, each busbar 30B and 30C can also be pressed into the receiving portion 55. In this way, each busbar 30B and 30C is supported by the base member 50.

[0040] (Wall section)

[0041] The wall portion 52 extends from the horizontal edge of the planar portion 51 along the +Z direction. In the horizontal direction, the wall portion 52 faces the electronic component 10.

[0042] (Fixed part)

[0043] The fixing part 53 is used to fix the electronic component 10. The fixing part 53 is a boss protruding from the planar part 51 in the +Z direction. The fixing part 53 has, for example, a mounting hole 53h into which the fastening member 19 is inserted. For example, the inner circumferential surface of the mounting hole 53h has a threaded groove. For example, the mounting hole 53h is a bottomed hole provided on the fixing part 53. The fastening member 19 is inserted into the mounting hole 53h in the Z direction. The fastening member 19 engages with the mounting hole 53h through a mounting hole 14h (described later). Unlike the example above, the mounting hole 53h may be a through hole provided on the fixing part 53.

[0044] (Base section)

[0045] The base portion 54 protrudes from the planar portion 51 along the +Z direction. The base portion 54 has, for example, a through hole or groove for receiving the insertion nut 59. The busbar 30 (e.g., busbar 30A), which is separate from the multiple busbars 30 received in the receiving portion 55 along the +Z direction and forms a power supply path, can be secured by a fastening member (e.g., a screw or bolt) that engages with the insertion nut 59.

[0046] <3. Main Body>

[0047] The main body MU is the part of the electrical connection device 1 that performs the main functions (e.g., switching electrical connection states or overcurrent protection). The main body MU includes, for example, an electronic component 10 and multiple heat storage components 20 (see...). Figure 4 ), multiple busbars 30, multiple fastening components 41, multiple fastening components 42 and insulation part 60.

[0048] In this disclosure, the first side and the second side are defined as follows.

[0049] The first side is located on one side (e.g., the +Z direction) of the direction in which the mounting hole 20h of the heat storage member 20A opens toward the terminal 13A of the electronic component 10 (described later), and the second side is located on the other side of the intersecting direction (e.g., the -Z direction). This intersecting direction intersects with the direction (e.g., the X direction) where the terminals 13A and 13B (described later) are located.

[0050] <3.1 Electronic Components>

[0051] Electronic component 10 will refer to Figure 2 and Figure 4 The electronic component 10 is an electronic component installed according to the required functions of the main body MU. Electronic component 10 may be, for example, a connector, fuse, relay (e.g., a mechanical relay or semiconductor relay), capacitor, branch element, various sensors (e.g., current sensor or voltage sensor), electronic control device, or an electronic component device consisting of two or more of the above-mentioned devices. However, the type of electronic component 10 is not limited to the examples described above. For example, electronic component 10 may be a heat-generating element that generates heat when energized.

[0052] Figure 4 This is a partially exploded perspective view showing the electrical connection device 1. The electronic component 10 includes, for example, a housing 11, a component body 12, multiple terminals 13, and multiple mounting portions 14. Figure 4 Only one mounting section is shown in the image. Figure 5 Two mounting parts are shown in the image.

[0053] (shell)

[0054] The housing 11 is the outer outline that forms most of the shape of the electronic component 10. The housing 11 is made of, for example, synthetic resin and has insulating properties. The housing 11 is used to house the component body 12. The housing 11 and the component body 12 can be integrally molded.

[0055] In this embodiment, the housing 11 has an insulating rib 11a that projects in a horizontal direction (e.g., the -Y direction) and extends in the Z direction. The insulating rib 11a is plate-shaped, for example, in both the Y and Z directions. The insulating rib 11a extends, for example, along the entire length of the housing 11 in the Z direction. The insulating rib 11a is disposed between a plurality of terminals 13 (terminals 13A and 13B, which will be described later). The insulating rib 11a electrically insulates terminals 13A from terminals 13B. In this embodiment, a portion of the insulating rib 11a is disposed between two heat storage members 20 (heat storage members 20A and 20B), which will be described later. For example, the insulating rib 11a electrically insulates at least a portion of the two heat storage members 20 from each other.

[0056] (Component body)

[0057] The component body 12 is the part that implements the main functions of the electronic component 10. For example, when the electronic component 10 is a relay, the component body 12 includes a switch (e.g., a contact) for switching between an on and off state. For example, when the electronic component 10 is a fuse, the component body 12 includes a fuse element for melting when an overcurrent flows through it. For example, when the electronic component 10 is a capacitor, the component body 12 includes a portion for storing charge.

[0058] (terminal)

[0059] Terminals 13 are all electrical connection portions exposed outside the housing 11. Terminals 13 are electrically connected to the component body 12 inside the housing 11. In this embodiment, the electronic component 10 includes terminals 13A and 13B, serving as a plurality of terminals 13. One of terminals 13A and 13B is a terminal located on the positive side. The other of terminals 13A and 13B is a terminal located on the negative side. One of terminals 13A and 13B is an example of a "first terminal," and the other of terminals 13A and 13B is an example of a "second terminal."

[0060] In this embodiment, terminals 13A and 13B are disposed at one end of the electronic component 10 in the horizontal direction (e.g., the Y direction). Terminals 13A and 13B are arranged along the horizontal direction (e.g., the X direction). Both terminals 13A and 13B face the horizontal direction (e.g., the Y direction).

[0061] Each terminal 13 has a mounting hole 13h (not shown) for inserting a fastening member 41 (e.g., a screw or bolt), described later. The mounting hole 13h opens in a horizontal direction (e.g., the -Y direction). The inner circumferential surface of the mounting hole 13h of the electronic component 10 has a threaded groove. The mounting hole 13h is a bottomed hole provided on the electronic component 10.

[0062] In this disclosure, "mounting hole" is not limited to a hole with a threaded groove, but can also be a hole without a threaded groove. In this disclosure, when the terminal 13 is plate-shaped, "mounting hole" can be a through hole or the like that extending through the terminal 13 along its thickness direction.

[0063] (Installation Department)

[0064] Each mounting portion 14 is a part used to fix the electronic component 10. For example, the mounting portion 14 overlaps with the fixing portion 53 of the base member 50 in the Z direction (see...). Figure 2 The mounting portion 14 has a mounting hole 14h into which a fastening member 19 (e.g., a screw or bolt) is inserted. The mounting hole 14h is open in the Z direction. The mounting hole 14h is an insertion hole through which the fastening member 19 passes. The fastening member 19 engages with the mounting hole 53h through the mounting hole 14h.

[0065] <3.2. Thermal Storage Components>

[0066] Next, we will refer to again Figure 4 Describe a heat storage component 20. The heat storage component 20 is a component that electrically and thermally connects a first connected object and a second connected object. For example, the heat storage component 20 stores (absorbs) at least a portion of the heat generated by the first connected object and / or the second connected object. The heat storage component 20 may be made of, for example, copper, copper alloys, aluminum, or aluminum alloys, but is not limited to these examples.

[0067] The first connection object is electronic component 10. The second connection object is busbar 30.

[0068] The heat storage component 20 can electrically and thermally connect the first connection object, the second connection object, and the third connection object. For example, the third connection object is any one of the electronic component 10, the heat storage component 20, the busbar 30, or a busbar for external connection. In this embodiment, both the second and third connection objects are busbars 30. The busbar for external connection is a busbar used to connect to an external device. The busbar for external connection has at least a first connection portion 31 (described later).

[0069] The heat storage component 20 is vertically arranged along the Z-direction. The heat storage component 20 can be, for example, a cuboid metal block along the Z-direction. The heat storage component 20 has two end faces 20e and one peripheral face 20s. The end faces 20e are located at both ends of the heat storage component 20 along the Y-direction and face towards the Y-direction. When viewed from the Y-direction, each end face 20e is rectangular. The peripheral face 20s is a surface extending along the Y-direction from the peripheral edge of one of the two end faces 20e of the heat storage component 20. The heat storage component 20 is adjacent to the terminal 13 in the horizontal direction (e.g., the Y-direction).

[0070] The thermal storage component 20 has a plurality of mounting holes 20h. Each connection object (e.g., a first connection object, a second connection object, and a third connection object) is physically connected to the thermal storage component 20 through a mounting hole 20h. The number of connection objects that can be connected to the thermal storage component 20 depends on the number of holes included in the plurality of mounting holes 20h. In this embodiment, the thermal storage component 20 includes mounting holes 20ha, 20hb, and 20hc, which serve as the plurality of mounting holes 20h. In this embodiment, the thermal storage component 20 electrically and thermally connects the first connection object, the second connection object, and the third connection object.

[0071] In this embodiment, a first connection object (e.g., electronic component 10) is connected to mounting hole 20ha. A second connection object (e.g., busbar 30A, described later) is connected to mounting hole 20hb. A third connection object (e.g., busbar 30B, described later) is connected to mounting hole 20hc.

[0072] The mounting hole 20ha of the heat storage component 20 opens toward the terminal 13 in the Y direction. The mounting hole 20ha is an insertion hole through which the fastening component 41 passes. For example, the mounting hole 20ha is a through hole that penetrates the heat storage component 20 in the Y direction.

[0073] For example, the mounting hole 20hb of the heat storage member 20 is located on a first side in the Z direction (e.g., the +Z direction side) and opens toward the first side in the Z direction. In this embodiment, the mounting hole 20hb opens toward the mounting hole 31h of the first connecting portion 31 of the busbar 30A along the Z direction. The mounting hole 20hb is an insertion hole through which each fastening member 42 passes. For example, the inner circumferential surface of the mounting hole 20hb has a threaded groove. For example, in this embodiment, the mounting hole 20hb is a bottomed hole provided on the heat storage member 20. The fastening member 42 is inserted into the mounting hole 20hb along the Z direction.

[0074] For example, the mounting hole 20hc of the heat storage component 20 is located on the second side in the Z direction (e.g., the -Z direction side) and opens toward the second side in the Z direction. In this embodiment, the mounting hole 20hc opens along the Z direction toward the mounting hole 31h of the busbar 30B or the mounting hole 31h of the busbar 30C. The mounting hole 20hc is an insertion hole through which each fastening member 42 passes. For example, the inner circumferential surface of the mounting hole 20hc has a threaded groove. For example, in this embodiment, the mounting hole 20hc is a bottomed hole provided on the heat storage component 20. The fastening member 42 is inserted into the mounting hole 20hc along the Z direction.

[0075] Next, the arrangement of the multiple thermal storage components 20 will be described.

[0076] The main body MU includes heat storage component 20A and heat storage component 20B, which are multiple heat storage components 20. Figure 4 Two heat storage components are shown. One of the heat storage components 20A and 20B is an example of a "first metal block". The "first metal block" is adjacent to the "first terminal". The other of the heat storage components 20A and 20B is an example of a "second metal block". The "second metal block" is adjacent to the "second terminal". Hereinafter, without distinguishing between heat storage components 20A and 20B, heat storage components 20A and 20B will be collectively referred to as "heat storage component 20".

[0077] For example, in this embodiment, the first connection point of the heat storage component 20A is the electronic component 10. In this embodiment, the second connection point of the heat storage component 20A is the busbar 30A. For example, in this embodiment, the third connection point of the heat storage component 20A is the busbar 30B.

[0078] For example, in this embodiment, the first connection object of the heat storage component 20B is the electronic component 10. In this embodiment, the third connection object of the heat storage component 20B is the busbar 30C. That is, in the heat storage component 20B of this embodiment, the second connection object is not connected to the mounting hole 20hb (see...). Figure 7 ).

[0079] For example, the heat storage component 20A is adjacent to the terminal 13A in the Y direction. The heat storage component 20A is adjacent to the first connection portion 31 of the busbar 30A (described later) in the Z direction. The heat storage component 20A is adjacent to the first connection portion 31 of the busbar 30B (described later) in the Z direction.

[0080] For example, the heat storage component 20B is adjacent to the terminal 13B in the Y direction. The heat storage component 20B is adjacent to the first connection portion 31 of the busbar 30C (described later) in the Z direction.

[0081] The length L20 of the thermal storage component 20 in the Z direction and the width W20 of the thermal storage component 20 in the X direction are both greater than the thickness T20 of the thermal storage component 20 in the Y direction. The length L20 of the thermal storage component 20 in the Z direction is greater than the width W20 of the thermal storage component 20 in the X direction.

[0082] <3.3 Busbar>

[0083] Busbar 30 will be referenced again Figure 2 and Figure 3 The busbar 30 is a wiring component used to electrically connect the electronic components 10 contained in the main body MU. The busbar 30 is made of metal (e.g., copper, copper alloy, aluminum, or aluminum alloy) and is conductive.

[0084] The busbar 30 has at least a first connecting portion 31. The busbar 30 may also have 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 constructed from a single plate-like member. The busbar 30 can be formed, for example, by bending a single plate member.

[0085] (First connecting part)

[0086] The first connecting portion 31 is the part that connects to the heat storage member 20. The first connecting portion 31 is located in the middle of the busbar 30 or at the first end of the busbar 30. The first connecting portion 31 may be, for example, a plate-like portion extending along the X and Y directions.

[0087] The first connecting portion 31 has a mounting hole 31h into which a fastening member 41 or 42 is inserted. The mounting hole 31h, for example, does not have a threaded groove. For example, the mounting hole 31h is a through hole extending through the first connecting portion 31 along its thickness direction (plate thickness direction). When viewed from the plate thickness direction of the first connecting portion 31, the first connecting portion 31 includes a portion that overlaps with the heat storage member 20.

[0088] (Second connecting part)

[0089] The second connection portion 32 is a portion that connects to any one of the electronic component 10, the heat storage member 20, the busbar 30, or a busbar for external connection. The second connection portion 32 is located in the middle of the busbar 30 or at the second end of the busbar 30. The second connection portion 32 is a plate-shaped portion.

[0090] The second connecting portion 32 has a mounting hole 32h into which a fastening member 43 (e.g., a screw or bolt) is inserted. For example, the mounting hole 32h does not have a threaded groove. The mounting hole 32h is, for example, a through hole extending through the second connecting portion 32 along its thickness direction (plate thickness direction). The fastening member 43 is inserted into the mounting hole 32h. The second connecting portion 32 includes a portion that overlaps with the fastening member 43 when viewed from the plate thickness direction of the second connecting portion 32.

[0091] (Extension)

[0092] An extension 33 is disposed between the first connecting portion 31 and the second connecting portion 32. The extension 33 extends from the first connecting portion 31 toward the second connecting portion 32. The extension 33 extends between the first connecting portion 31 and the second connecting portion 32. The extension 33 connects the first connecting portion 31 and the second connecting portion 32. A portion of the extension 33 is bendable.

[0093] Next, the arrangement of the multiple busbars 30 will be described.

[0094] The following describes three busbars 30 that are electrically connected to the electronic components 10 via multiple heat storage components 20. The main body MU includes busbars 30A, 30B, and 30C, which are the multiple busbars 30.

[0095] (Bus strip 30A)

[0096] The busbar 30A includes a first connecting portion 31, a second connecting portion 32, an extension portion 33, and a fixing portion 34. The fixing portion 34 is a plate-shaped portion that can be electrically connected to an insert nut 59. The fixing portion 34 has a mounting hole 34h into which a fastening member (e.g., a screw or bolt) that engages with the insert nut 59 can be inserted. The mounting hole 34h is, for example, a through hole that extends through the fixing portion 34 along its thickness direction.

[0097] The first connecting portion 31 of the busbar 30A is a plate-shaped portion extending along the X and Y directions. The first connecting portion 31 of the busbar 30A faces the heat storage member 20A, for example, in the Z direction. For example, the busbar 30A faces the heat storage member 20A from a first side in the Z direction (e.g., the +Z direction side). In this embodiment, the busbar 30A also faces the heat storage member 20B from a first side in the Z direction. At this time, the mounting hole 31h of the first connecting portion 31 of the busbar 30A opens in the Z direction.

[0098] The mounting hole 31h of the first connecting part 31 of the manifold 30A overlaps with the mounting hole 20hb of the heat storage component 20A along the Z direction. The fastening component 42 is inserted into the mounting hole 31h of the first connecting part 31 from the +Z direction along the Z direction.

[0099] The second connecting portion 32 of the busbar 30A is, for example, a plate-like portion extending along the X and Y directions. In the busbar 30A, the second connecting portion 32 is disposed on the -X direction side relative to the first connecting portion 31. The mounting hole 32h of the second connecting portion 32 of the busbar 30A faces the heat storage member 20B along the Z direction. The mounting hole 31h of the first connecting portion 31 of the busbar 30A can overlap with the mounting hole 20hb of the heat storage member 20B along the Z direction.

[0100] A fastening member 43 (e.g., a screw or bolt) is inserted into the mounting hole 32h of the second connection portion 32 of the busbar 30A along the Z-direction. In the busbar 30A, a connecting member (e.g., a nut) can engage with the end of the fastening member 43 passing through the mounting hole 32h. In this embodiment, with the fastening member 43 pre-inserted into the busbar 30A from the -Z-direction, the busbar 30A faces the heat storage member 20A and the heat storage member 20B from a first side in the Z-direction. With this structure, any of the electronic component 10, the heat storage member 20, the busbar 30, or any busbar for external connection can be electrically connected to the second connection portion 32 of the busbar 30A.

[0101] The fixing part 34 is positioned horizontally on the insertion nut 59 housed within the base portion 54 of the base member 50. For example, the fixing part 34 can be fixed to the insertion nut 59 housed within the base portion 54 using the aforementioned fastening member. With this structure, the busbar 30A can be fixed to the base member 50 by inserting the nut 59.

[0102] (Bus strip 30B)

[0103] The busbar 30B has a first connecting portion 31, a second connecting portion 32, and an extension portion 33.

[0104] The first connecting portion 31 of the busbar 30B is a plate-like portion extending along the X and Y directions. Here, among the plurality of busbars 30, two busbars 30 (busbars 30A and 30B) are arranged such that their first and second sides in the Z direction are separated from each other. As described above, busbar 30A is located on the first side in the Z direction relative to the heat storage member 20A and the heat storage member 20B. On the other hand, busbar 30B is located on the second side in the Z direction (e.g., the -Z direction side) relative to the heat storage member 20A. The first connecting portion 31 of the busbar 30B faces the heat storage member 20A, for example, in the Z direction. For example, the busbar 30B faces the heat storage member 20A from its second side in the Z direction. In this case, the mounting hole 31h of the first connecting portion 31 of the busbar 30B opens along the Z direction.

[0105] The mounting hole 31h of the first connecting part 31 of the manifold 30B overlaps with the mounting hole 20hc of the heat storage component 20A in the Z direction. The fastening component 42 is inserted into the mounting hole 31h of the first connecting part 31 from the -Z direction along the Z direction.

[0106] The second connecting portion 32 of the busbar 30B is, for example, a plate-like portion extending along the X and Y directions. In the busbar 30B, the second connecting portion 32 is positioned relative to the first connecting portion 31 on the +Y direction side. In the busbar 30B, the second connecting portion 32 and the first connecting portion 31 are substantially located on the same plane. A portion of the busbar 30B (e.g., Figure 2 A portion of the extension 33 and the second connection 32 shown are supported by the receiving portion 55.

[0107] In this embodiment, the first connecting portion 31 of the busbar 30B is arranged horizontally within the receiving portion 55 of the base member 50. In the busbar 30B, at least a portion of the extension portion 33 connecting the first connecting portion 31 and the second connecting portion 32 extends horizontally within the receiving portion 55 (see...). Figure 3 and Figure 5 A horizontal power supply path is formed in the receiving portion 55 of the planar portion 51. Since at least a portion of the extension 33 is received in the receiving portion 55, the busbar 30B passes through the region R that overlaps with the electronic component 10 when viewed from the Z direction and extends to both sides of the region R (see...). Figure 5 ).

[0108] Fastening member 43 (e.g., screw or bolt) is inserted along the Z direction into the mounting hole 32h of the second connection portion 32 of the busbar 30B (see... Figure 5 The engaging member (e.g., a nut) can engage with the end of the fastening member 43, which passes through the mounting hole 32h of the second connection portion 32. With this structure, any of the electronic component 10, the heat storage member 20, the busbar 30, or the busbar for external connection can be electrically connected to the second connection portion 32 of the busbar 30B.

[0109] (Busbar 30C)

[0110] The busbar 30C has a first connecting part 31.

[0111] The first connecting portion 31 of the busbar 30C is a plate-shaped portion extending along the X and Y directions. For example, the first connecting portion 31 of the busbar 30C faces the heat storage member 20B in the Z direction. For example, the busbar 30C faces the heat storage member 20B from a second side (e.g., the -Z direction side) in the Z direction. In this case, the mounting hole 31h of the first connecting portion 31 of the busbar 30C opens in the Z direction.

[0112] The mounting hole 31h of the first connecting part 31 of the manifold 30C overlaps with the mounting hole 20hc of the heat storage component 20B in the Z direction. The fastening component 42 is inserted into the mounting hole 31h of the first connecting part 31 in the Z direction from the -Z direction.

[0113] In this embodiment, the first connecting portion 31 of the busbar 30C is arranged horizontally, supported by the receiving portion 55 of the base member 50. Two busbars 30B and 30C are disposed within the receiving portion 55 and arranged at intervals in the horizontal direction. The two busbars 30B and 30C are substantially located on the same plane. The two busbars 30B and 30C are electrically insulated by the receiving portion 55 of the planar portion 51, which serves as an insulating base.

[0114] Next, fastening member 41 and fastening member 42 will be described in detail.

[0115] Fastening member 41 is a component for fixing terminal 13 (terminal 13A or terminal 13B) and the heat storage component 20 corresponding to terminal 13. Fastening member 42 is a component for fixing the first connecting portion 31 of busbar 30 and the heat storage component 20 corresponding to the first connecting portion 31.

[0116] Fastening member 41 has a first shaft portion 411 passing through the mounting hole 20ha and a first head 412 located at one end of the first shaft portion 411 (see Figure 8 The fastening member 42 has a second shaft portion 421 passing through the mounting hole 20hb or the mounting hole 20hc and a second head 422 located at one end of the second shaft portion 421 (see...). Figure 8 ).

[0117] First, refer to Figure 6 Describe the installation method of thermal storage component 20A. Figure 6 It is along Figure 5 The cross-sectional view of the structure shown is taken from line F6-F6.

[0118] A fastening member 41, inserted in the -Y direction, passes through a mounting hole 20ha and connects the heat storage member 20A to the terminal 13A. This connection provides an electrical connection between the heat storage member 20A and the terminal 13A. Furthermore, the electronic component 10 is thermally connected to the heat storage member 20A.

[0119] Next, refer to Figure 7 Describe the various connection objects that are connected to the thermal storage component 20A. Figure 7 It is along Figure 5 The cross-sectional view of the structure shown is taken from line F7-F7.

[0120] For example, a fastening member 42 inserted from the +Z direction passes through mounting holes 31h and 20hb, connecting the busbar 30A and the heat storage member 20A. With this structure, the first connecting portion 31 of the busbar 30A is physically and electrically connected to the heat storage member 20A. Furthermore, the busbar 30A is thermally connected to the heat storage member 20A. For example, a fastening member 42 inserted from the -Z direction passes through mounting holes 31h and 20hc, connecting the heat storage member 20A and the busbar 30B. With this structure, the first connecting portion 31 of the busbar 30B is physically and electrically connected to the terminal 13A of the electronic component 10. Furthermore, the busbar 30B is thermally connected to the heat storage member 20A.

[0121] Next, the installation method of the thermal storage component 20B will be described.

[0122] A fastening member 41, inserted in the -Z direction, passes through the mounting hole 20ha and connects the heat storage member 20B to the terminal 13B. This mounting method provides both physical and electrical connection between the heat storage member 20B and the terminal 13B. Furthermore, the busbar 30C is thermally connected to the heat storage member 20B.

[0123] Next, the various connection objects connected to the thermal storage component 20B will be described.

[0124] For example, fastening member 42 passes through mounting holes 31h and 20hc to connect busbar 30C to heat storage member 20B. Through this structure, the first connection portion 31 of busbar 30C and heat storage member 20B are physically and electrically connected to each other.

[0125] Next, we will refer to Figure 8 Describe the positional relationship between fastening member 41 and fastening member 42 that are fastened to the heat storage member 20. Figure 8 It is along Figure 5 The cross-sectional view of the structure shown is taken along line F8-F8.

[0126] For example, when viewed from the X direction, the distance between the electronic component 10 in the Y direction and the second shaft portion 421 is less than the distance between the electronic component 10 in the Y direction and the first head 412.

[0127] <4. Insulation Part>

[0128] Next, we will refer to Figure 4 and Figures 9 to 11 Description of insulation part 60. Figure 9 This is a perspective view showing a portion of the electrical connection device 1. Figure 10 It is along Figure 9 The cross-sectional view of the structure shown is taken along line F10-F10. Figure 11 It is along Figure 5The cross-sectional view of the structure shown is taken along line F11-F11.

[0129] The insulating portion 60 is an insulating member used to ensure an insulating distance between the heat storage member 20A and the heat storage member 20B. For example, the insulating portion 60 contacts the insulating rib 11a of the electronic component 10 to ensure an insulating distance between the heat storage member 20A and the heat storage member 20B. In this embodiment, the insulating portion 60 is made of, for example, synthetic resin and has insulating properties. The insulating portion 60 has a wall portion 61 and a peripheral wall portion 62. The insulating portion 60 may further have an inner wall portion 63 as needed. The insulating portion 60 covers at least a portion of the peripheral surface of the heat storage member 20 through the peripheral wall portion 62. In this embodiment, the insulating portion 60 includes a plurality of (e.g., two) inner wall portions 63, and the peripheral wall portion 62 covers at least a portion of the peripheral surface of a plurality of (e.g., two) heat storage members 20 (heat storage members 20A and 20B).

[0130] The wall portion 61 has a plate-like structure extending along the Z and X directions. The wall portion 61 overlaps with the end face 20e of the heat storage member 20A and the end face 20e of the heat storage member 20B in the Y direction (see...). Figure 2 and Figure 4 In this embodiment, the wall portion 61 faces the heat storage member 20A and the heat storage member 20B from the -Y direction side. The wall portion 61 has an insertion hole 61h into which the fastening member 41 is inserted. The insertion hole 61h is, for example, a through hole that penetrates the wall portion 61 along the thickness direction (plate thickness direction).

[0131] The peripheral wall portion 62 extends from the peripheral edge of the wall portion 61 along the Y direction. When viewed from a direction intersecting the Y direction (e.g., the X direction), the peripheral wall portion 62 covers the peripheral surface 20s of the heat storage member 20A and the peripheral surface 20s of the heat storage member 20B (see...). Figure 2 and Figure 4 For example, when viewed from a direction intersecting the Y direction (e.g., the X direction), the peripheral wall portion 62 of this embodiment extends along the Y direction such that it overlaps at least a portion of the electronic component 10 (see [link]). Figure 2 In this structure, the insulating portion 60 can be easily aligned with the electronic component 10. The peripheral wall portion 62 can, for example, extend to the entire length of the housing 11 in the Y direction.

[0132] The peripheral wall portion 62 has one or more insertion holes 62h opening along the Z direction. In this embodiment, the peripheral wall portion 62 includes insertion holes 62ha, 62hb, 62hc, and 62hd, which are a plurality of insertion holes 62h. Insertion hole 62ha is an example of a "first insertion hole". Insertion hole 62hb is an example of a "second insertion hole". Insertion hole 62hc is an example of a "third insertion hole". Insertion hole 62hd is an example of a "fourth insertion hole". A variation of the peripheral wall portion 62 having a single insertion hole 62h will be described later.

[0133] Insertion holes 62ha and 62hb open toward the thermal storage member 20A along the Z direction. Insertion hole 62ha of the peripheral wall portion 62 is located on the first side of the Z direction (e.g., the +Z direction side). Insertion hole 62hb of the peripheral wall portion 62 is located on the second side of the Z direction (e.g., the -Z direction side).

[0134] When viewed from the Z direction, the insertion holes 62ha and 62hb can overlap each other. In this case, the insertion holes 62ha and 62hb can communicate with each other. In this embodiment, the insertion holes 62ha and 62hb communicate with each other to penetrate the peripheral wall portion 62 in the Z direction. The heat storage member 20A is pressed into the peripheral wall portion 62 through the insertion holes 62ha and 62hb. With this structure, the insulation portion 60 and the heat storage member 20A are integrated together. In addition to pressing in the heat storage member 20A, the heat storage member 20A can also be integrally formed with the peripheral wall portion 62 of the insulation portion 60 by, for example, insert molding or other means after being inserted into the insertion hole 62h.

[0135] Insertion holes 62hc and 62hd open toward the heat storage member 20B along the Z direction. Insertion hole 62hc of the peripheral wall portion 62 is located on the first side in the Z direction. Insertion hole 62hd of the peripheral wall portion 62 is located on the second side in the Z direction.

[0136] When viewed from the Z direction, the insertion holes 62hc and 62hd can overlap each other. In this case, the insertion holes 62hc and 62hd can communicate with each other. In this embodiment, the insertion holes 62hc and 62hd communicate with each other to penetrate the peripheral wall portion 62 in the Z direction. The heat storage member 20B is pressed into the peripheral wall portion 62 through the insertion holes 62hc and 62hd. With this structure, the insulating portion 60 and the heat storage member 20B are integrally formed. In addition to pressing the heat storage member 20B in, the heat storage member 20B can also be integrally formed with the peripheral wall portion 62 of the insulating portion 60 by, for example, insert molding or other means after being inserted into the insertion hole 62h. In this embodiment, the insulating portion 60 uses the insertion hole 62h of the peripheral wall portion 62 to hold the heat storage member 20A and the heat storage member 20B integrally. In addition to the above example, the insulating portion 60 may also integrally hold only one of the plurality of heat storage members 20.

[0137] In this embodiment, when the two heat storage components 20 (heat storage components 20A and 20B) are integrated with the insulating part 60, each heat storage component 20 is electrically connected to the terminal 13 through the fastening member 41 passing through the insertion hole 61h.

[0138] The inner wall portion 63 is plate-shaped and extends from the wall portion 61 along the Z and Y directions. The inner wall portion 63 extends from one end of the peripheral wall portion to the other along the Z direction. The inner wall portion 63 and the insulating rib 11a insulate the plurality of terminals 13 (terminals 13A and 13B) from each other. In this embodiment, the insulating portion 60 includes inner wall portions 63A and 63B as a plurality of inner wall portions 63. Inner wall portion 63A is an example of a "first inner wall portion". Inner wall portion 63B is an example of a "second inner wall portion".

[0139] The inner wall portion 63 of the insulating portion 60 is disposed between a plurality of terminals 13 (terminals 13A and 13B). For example, two inner wall portions 63 (inner wall portions 63A and 63B) are disposed between terminals 13A and 13B. Each inner wall portion 63 electrically insulates terminals 13A from terminals 13B.

[0140] For example, inner wall portion 63A is located on the terminal 13A side (or on the heat storage member 20A side) of the two inner wall portions (inner wall portions 63A and 63B) of insulating portion 60 (see... Figure 11 The inner wall portion 63B is located on the terminal 13B side (or the heat storage member 20B side) of the two inner wall portions (inner wall portions 63A and 63B) of the insulating portion 60 (see...). Figure 11 ).

[0141] An insulating rib 11a is sandwiched between inner wall portions 63A and 63B. Inner wall portion 63A has a protrusion 63p on its surface facing inner wall portion 63B, protruding toward inner wall portion 63B. Inner wall portion 63B also has a protrusion 63p on its surface facing inner wall portion 63A, protruding toward inner wall portion 63A.

[0142] The protrusion 63p has an inclined surface 63s. The inclined surface 63s slopes downward from one end of the protrusion 63p toward the insulating rib 11a of the electronic component 10. In this embodiment, the inclined surface 63s slopes downward from one end of the protrusion 63p toward the +Y direction. The insulating rib 11a is guided between two opposing inclined surfaces 63s. After the insulating rib 11a is guided, the protrusion 63p of the inner wall portion 63A and the protrusion 63p of the inner wall portion 63B clamp the insulating rib 11a (see...). Figure 7 and Figure 11 ).

[0143] <5. Insulating sheets and heat transfer components>

[0144] Next, we will refer to again Figures 6 to 8 Describe the insulating sheet 7, the heat transfer component 8, and the insulator 9.

[0145] <5.1 Insulating Sheet>

[0146] The insulating sheet 7 is an insulating component used to insulate the busbars 30 (busbars 30B or 30C) that are housed within the receiving portion 55 while facing the external cooling component CM. The insulating sheet 7 is a horizontally oriented sheet. The insulating sheet 7 is made of, for example, a synthetic resin such as polyester or polyimide and has insulating properties.

[0147] The shape of the insulating sheet 7 corresponds in the Z direction to the lower surface (second surface 50b of the planar portion 51) of the base member 50. The insulating sheet 7 is disposed between the busbar 30 housed in the receiving portion 55 and the cooling surface CS of the external cooling member CM. In this embodiment, the heat transfer member 8 is disposed directly below the insulating sheet 7.

[0148] <5.2. Heat Transfer Components>

[0149] The heat transfer member 8 is a component used to transfer the heat absorbed by the heat storage member 20 to the external cooling member CM. The heat transfer member 8 may be, for example, a resilient heat transfer sheet (e.g., a thermally conductive silicone sheet). The heat transfer member 8 is made of a material with a thermal conductivity higher than that of the base member 50. However, the heat transfer member 8 is not limited to the above example and may also be a heat transfer member made of thermally conductive gel or other materials.

[0150] A heat transfer member 8 is disposed along the Z-direction between the cooling surface CS of the external cooling member CM and the insulating sheet 7. The heat transfer member 8 overlaps with the busbar 30 along the Z-direction. In this embodiment, each of the plurality of heat transfer members 8 overlaps along the Z-direction with the busbar 30 (busbar 30B or busbar 30C) exposed from the receiving portion 55 along the -Z-direction. The external shape of the heat transfer member 8 may correspond to the lower surface of the base member 50 (the second surface 50b of the planar portion 51), and may cover each busbar 30B and 30C, and cover the lower surface.

[0151] A portion of the heat transfer member 8 may be positioned at a location overlapping the second head 422 of the fastening member 42 in the Z direction, and may be in contact with the second head 422 of the fastening member 42. In this case, the heat transfer member 8 can easily transfer heat from the terminal 13 of the electronic component 10 to the heat storage member 20 (heat storage member 20A or 20B) from the fastening member 42 to the external cooling member CM.

[0152] <5.3. Insulators>

[0153] like Figure 7 As shown, insulator 9 is an insulating member used to insulate busbar 30 (e.g., busbar 30A), which faces one heat storage member 20 (e.g., heat storage member 20A) in the Z direction and also faces another heat storage member 20 (e.g., heat storage member 20B) in the same direction.

[0154] The insulator 9 overlaps with the heat storage member 20 (e.g., heat storage member 20B) in the Z direction and is disposed between the heat storage member 20 (e.g., heat storage member 20B) and the busbar 30 (e.g., busbar 30A). In this structure, the busbar 30A, which extends from the first side in the Z direction towards the heat storage member 20A and the heat storage member 20B, is electrically insulated from the heat storage member 20B by the insulator 9, and is also thermally connected to the heat storage member 20B by the insulator 9.

[0155] For example, the insulator 9 is a horizontally oriented sheet structure. The insulator 9 can be a heat transfer component with insulating properties. In addition to the above examples, the insulator 9 can also be an insulating coating of the busbar 30 (e.g., busbar 30A) between the busbar 30 and the heat storage component 20, or an insulating coating of the heat storage component 20 (e.g., heat storage component 20B).

[0156] <6. Advantages>

[0157] In this embodiment, the electrical connection device 1 includes an electronic component 10 having a first terminal (e.g., terminal 13A), a first metal block (e.g., heat storage element 20A), and an insulating portion 60. The first metal block is adjacent to and electrically connected to the first terminal along a first direction (e.g., the Y direction). The first metal block has an end face 20e along the first direction and a peripheral surface 20s extending from the peripheral edge of the end face 20e along the first direction. The insulating portion 60 covers at least a portion of the peripheral surface 20s.

[0158] In this structure, the insulating portion 60 covering at least a portion of the peripheral surface 20s of the first metal block can easily ensure the insulation distance between the first metal block and the other conductor. Therefore, the insulation distance can be ensured in the electrical connection device 1.

[0159] In this embodiment, the insulating portion 60 has a wall portion 61 that overlaps with the end face 20e along a first direction and a peripheral wall portion 62 that extends from the peripheral edge of the wall portion 61 along the first direction. When viewed from a second direction (e.g., the X direction) intersecting the first direction, the peripheral wall portion 62 covers the first metal block.

[0160] In this structure, the first metal block adjacent to the first terminal is covered from the first direction by the wall portion 61 and the peripheral wall portion 62. The insulating portion 60 can easily ensure the insulating distance between the first metal block and the other conductor. Therefore, the insulating distance can be ensured in the electrical connection device 1.

[0161] In this embodiment, the peripheral wall 62 has insertion holes 62h (e.g., insertion holes 62ha and 62hb) opening along a third direction (e.g., the Z direction), which intersects with the first and second directions. With this structure, when the first metal block is covered, it can be exposed outwards through the peripheral wall 62. Since heat is unlikely to be confined within the insulation portion 60 covering the first metal block, the thermal insulation performance of the electrical connection device 1 is easily improved.

[0162] In this embodiment, the insertion hole 62h includes a first insertion hole (e.g., insertion hole 62ha) and a second insertion hole (e.g., insertion hole 62hb). The first insertion hole is located on a first side in a third direction (e.g., the +Z direction side). The second insertion hole is located on a second side in a third direction (e.g., the -Z direction side). In this structure, an insulation distance can be ensured in a direction different from the third direction by the peripheral wall portion 62, while heat dissipation of the insulating portion 60 in the third direction can be ensured.

[0163] In this embodiment, the insulating portion 60 integrally holds the first metal block. In this structure, by integrating the insulating portion 60 with the first metal block, the first metal block is likely to be close to the first terminal. Therefore, the mounting performance of the first metal block is easily improved.

[0164] In this embodiment, the electrical connection device 1 further includes a second metal block (e.g., a heat storage element 20B). The electronic component 10 also has a second terminal (e.g., terminal 13B). The insulating portion 60 integrally holds the first metal block and the second metal block. The second metal block is adjacent to and connected to the second terminal in a first direction. In this structure, by integrating the insulating portion 60, the first metal block, and the second metal block together, the metal blocks (the first metal block and the second metal block) can be easily arranged near multiple terminals (the first terminal and the second terminal). Therefore, the assemblability of the electrical connection device 1 can be improved.

[0165] In this embodiment, the electronic component 10 also has an insulating rib 11a for insulating the first terminal from the second terminal. The insulating portion 60 has a first inner wall portion (e.g., inner wall portion 63A) that, together with the insulating rib 11a, insulates the first terminal from the second terminal. In this structure, the insulating portion 60, together with the insulating rib 11a, can adequately ensure the insulating distance between the first terminal and the second terminal.

[0166] In this embodiment, the insulating portion 60 also has a second inner wall portion (e.g., inner wall portion 63B). The first inner wall portion and the second inner wall portion are disposed between the first terminal and the second terminal. The first inner wall portion and the second inner wall portion sandwich an insulating rib 11a. In this structure, the insulating rib 11a, the first inner wall portion, and the second inner wall portion can sufficiently ensure the insulating distance between the first terminal and the second terminal. Furthermore, since the insulating rib 11a is sandwiched between the first inner wall portion and the second inner wall portion, the metal blocks (the first metal block and the second metal block) can be easily arranged near the multiple terminals (the first terminal and the second terminal), respectively.

[0167] <7. Variations>

[0168] Next, several variations of this embodiment will be described. In each variation, except for the structure described below, all other structures are the same as those in this embodiment.

[0169] <7.1. First Variation>

[0170] In this modified example, the insulating portion 60 can be integrally formed with one or both of the heat storage components 20A and 20B as a single component, for example, by insert molding. According to this structure, the insulating portion 60 can be installed while at least one of the heat storage components 20A and 20B is being installed. This structure improves the assemblability of the electrical connection device 1.

[0171] <7.2. Second Variation>

[0172] In this embodiment, a portion of the plurality of insertion holes 62h of the peripheral wall 62 may be closed. For example, in the insulating portion 60 of this modification, the peripheral wall 62 may not have insertion holes 62hc. When viewed from the +Z direction, the heat storage member 20B is covered by the peripheral wall 62; when viewed from the -Z direction, the heat storage member 20B is exposed from the peripheral wall 62. However, even in this modification, at least a portion of the peripheral surface 20s of the heat storage member 20B is covered by the peripheral wall 62 in the X direction. When viewed from the +Z direction, the heat storage member 20B is covered by the peripheral wall 62, and the insulator 9 that insulates the busbar 30A which faces the heat storage member 20A in the Z direction and also faces the heat storage member 20B in the same direction can be omitted.

[0173] <7.3. Third Variation>

[0174] For example, the inner wall portion 63 provided between terminal 13A and terminal 13B can be at least one of a plurality of inner wall portions 63. In this case, a cut can be provided on one end face of the inner wall portion facing the electronic component 10. The cut is formed to a degree that can clamp the insulating rib 11a.

[0175] <7.4. Fourth Variation>

[0176] For example, the insulating portion 60 may cover only one of the plurality of heat storage members 20 (heat storage members 20A and 20B). This is because, when covering one heat storage member 20, an insulating distance from other conductors can be ensured. In this variation, the insulating portion 60 may not have an inner wall portion 63.

[0177] Several implementation methods and variations have been described above. However, the implementation methods and variations are not limited to the examples described above. For example, the above variations can be combined for implementation.

[0178] Reference symbol

[0179] 1 Electrical connection device

[0180] 5. Shell

[0181] 7 Insulating sheet

[0182] 8 Heat transfer components

[0183] 9. Insulators

[0184] 10 Electronic Components

[0185] 11. Outer shell

[0186] 11a Insulating Rib

[0187] 12 Components

[0188] 13 terminals

[0189] 13A terminal (first terminal)

[0190] 13B terminals (first terminal and second terminal)

[0191] 13h mounting hole

[0192] 14 Installation Department

[0193] 14h mounting hole

[0194] 19 Fastening components

[0195] 20 Thermal storage components

[0196] 20A Thermal Storage Component (First Metal Block)

[0197] 20B Thermal storage components (first metal block, second metal block)

[0198] 20h mounting hole

[0199] 20ha mounting holes

[0200] 20hb mounting holes

[0201] 20hc mounting holes

[0202] 30 busbars

[0203] 30A Busbar

[0204] 30B Busbar

[0205] 30C Busbar

[0206] 31 First connecting part

[0207] 31h mounting hole

[0208] 32 Second connecting part

[0209] 32h mounting hole

[0210] 33 Extension

[0211] 34 Fixing part

[0212] 34h mounting hole

[0213] 41 Fastening components (first fastening component, fastening component)

[0214] 411 First Shaft

[0215] 412 First Head

[0216] 42 Fastening components (second fastening components, fastening components)

[0217] 421 Second Shaft

[0218] 422 Second Head

[0219] 43 Fastening components

[0220] 50 Base components

[0221] 50a First Surface

[0222] 50b Second Surface

[0223] 51. Planar section

[0224] 52 Wall section

[0225] 53 Fixing part

[0226] 53h mounting hole

[0227] 54. Base section

[0228] 55. Accommodation Department

[0229] 55B Reception Section

[0230] 55C Reception Section

[0231] 59 Insert nut

[0232] 60 Insulation section

[0233] 61 Wall section

[0234] 61h Insertion Hole

[0235] 62 Peripheral wall

[0236] 62h Insertion Hole

[0237] 62ha insertion hole (first insertion hole)

[0238] 62hb insertion hole (second insertion hole)

[0239] 62hc Insertion Hole (Third Insertion Hole)

[0240] 62hd Insertion Hole (Fourth Insertion Hole)

[0241] 63 inner wall part

[0242] 63A Inner Wall Section (First Inner Wall Section)

[0243] 63B Inner wall portion (second inner wall portion)

[0244] 63p protrusion

[0245] 63s inclined plane

[0246] CM cooling components

[0247] CS cooling surface

[0248] MU main body

[0249] R region

Claims

1. An electrical connection device, comprising: An electronic component having a first terminal; A first metal block is adjacent to and electrically connected to the first terminal along a first direction; as well as Insulation part, The first metal block has an end face along the first direction and a peripheral face extending from the peripheral edge of the end face along the first direction. The insulating portion covers at least a portion of the peripheral surface.

2. The electrical connection device according to claim 1, in, The insulating portion has a wall portion that overlaps with the end face along the first direction and a peripheral wall portion that extends from the peripheral edge of the wall portion along the first direction. When viewed from a second direction intersecting the first direction, the peripheral wall covers the first metal block.

3. The electrical connection device according to claim 2, in, The peripheral wall portion has an insertion hole with a third-direction opening intersecting the first and second directions.

4. The electrical connection device according to claim 3, in, The insertion hole includes a first insertion hole and a second insertion hole. The first insertion hole is located on the first side of the third direction, and The second insertion hole is located on the second side of the third direction.

5. The electrical connection device according to any one of claims 1 to 4, in, The insulating part retains the first metal block as a whole.

6. The electrical connection device according to any one of claims 1 to 4, further comprising a second metal block, in, The electronic component also has a second terminal. The insulating part as a whole retains the first metal block and the second metal block, and The second metal block is adjacent to and connected to the second terminal in the first direction.

7. The electrical connection device according to claim 6, in, The electronic component also has insulating ribs for insulating the first terminal from the second terminal, and The insulating portion has a first inner wall portion, which, together with the insulating rib, insulates the first terminal from the second terminal.

8. The electrical connection device according to claim 7, in, The insulating part also has a second inner wall portion. The first inner wall portion and the second inner wall portion are disposed between the first terminal and the second terminal, and The first inner wall portion and the second inner wall portion together clamp the insulating rib.

Images