Electrical connection device

Abstract

According to one embodiment, an electrical connection device includes an electronic component having a first terminal, a first metal block, a first wiring member, a fastening portion, and a second wiring member. The first metal block is adjacent to and connected to the first terminal in a first direction. The first wiring member faces the first metal block in a second direction intersecting the first direction. The fastening portion is fixed to the first wiring member at a position overlapping the first metal block when viewed from the second direction. The second wiring member is connected to the first wiring member through the fastening portion.

Description

Technical Field

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

[0002] In electrical connection devices, it is known that electronic components such as relays and resistors are electrically connected to the mounting surface of the housing via wiring components.

[0003] Citation List

[0004] Patent documents

[0005] Patent Document 1: Japanese Unexamined Patent Application, First Publication No. 2018-113184 Summary of the Invention

[0006] When fasteners are used to secure multiple wiring components, dimensional tolerances increase with the length of the wiring components. Due to the cumulative dimensional tolerances of each wiring component, the position of the fasteners becomes difficult to determine, thus a base is usually required to support them. In this situation, miniaturization of the electrical connection device becomes challenging.

[0007] The present invention provides a miniaturizable electrical connection device.

[0008] The present invention provides an electrical connection device, comprising: an electronic component having a first terminal; a first metal block adjacent to and connected to the first terminal along a first direction; a first wiring member facing the first metal block along a second direction intersecting the first direction; a fastening portion fixed to the first wiring member at a position overlapping the first metal block when viewed from the second direction; and a second wiring member connected to the first wiring member via the fastening portion.

[0009] According to this embodiment, the electrical connection device can be miniaturized. Attached Figure Description

[0010] Figure 1 This is a perspective view of the electrical connection device according to this embodiment.

[0011] Figure 2 This is an exploded perspective view of the electrical connection device according to this embodiment.

[0012] Figure 3 This is a partially exploded perspective view of the electrical connection device according to this embodiment.

[0013] Figure 4 This is an exploded perspective view of another part of the electrical connection device according to this embodiment.

[0014] Figure 5This is a top view of the electrical connection device according to this embodiment.

[0015] Figure 6 It is along Figure 5 The cross-sectional view of the structure shown is taken along line F6-F6.

[0016] Figure 7 It is along Figure 5 The cross-sectional view of the structure shown is taken along line F7-F7.

[0017] Figure 8 It is along Figure 5 The cross-sectional view of the structure shown is taken along line F8-F8. Detailed description

[0018] 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.

[0019] 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”.

[0020] 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 the heat storage member 20A to the terminal 13A of the electronic component 10 (see...). Figure 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 electronic component 10 to terminal 13A (see...). 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 "second direction". The X direction is an example of a "third direction".

[0021] 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).

[0022] <1. Composition of Electrical Connection Devices>

[0023] Figure 1 This is a perspective view of the electrical connection device 1 according to the first embodiment. The electrical connection device 1 can be, for example, an on-board device installed in 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 a "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.

[0024] 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.

[0025] <2. Shell>

[0026] 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.

[0027] <2.1 Base Components>

[0028] 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 3The 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.

[0029] 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.

[0030] (Plane section)

[0031] 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.

[0032] 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 along 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.

[0033] 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.

[0034] The external shape of each receiving portion 55 corresponds to the shape of the busbar 30 to be received when viewed from the Z direction. Multiple receiving portions 55 may include, 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.

[0035] 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.

[0036] (Wall section)

[0037] 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.

[0038] (Fixed part)

[0039] 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.

[0040] (Base section)

[0041] 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.

[0042] <3. Main Body>

[0043] 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, one or more fastening components 41, one or more fastening components 42, multiple fastening components 43 (see Figure 5 ) and insulation part 60.

[0044] In this disclosure, the first side and the second side are defined as follows.

[0045] The first side is located on one side (e.g., the +Z direction) of the direction (e.g., the Y direction) that intersects with the mounting hole 20h of the heat storage member 20A toward the terminal 13A of the electronic component 10, which will be described later. The second side is located on the other side (e.g., the -Z direction) of the direction that intersects with the mounting hole 20h of the heat storage member 20A toward the terminal 13A of the electronic component 10.

[0046] <3.1 Electronic Components>

[0047] 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.

[0048] 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.

[0049] (shell)

[0050] 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.

[0051] 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 a 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 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.

[0052] (Component body)

[0053] 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.

[0054] (terminal)

[0055] 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."

[0056] 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).

[0057] 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.

[0058] 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.

[0059] (Installation Department)

[0060] 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.

[0061] <3.2. Thermal Storage Components>

[0062] 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.

[0063] The first connection object is electronic component 10. The second connection object is busbar 30.

[0064] 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).

[0065] The heat storage component 20 is vertically arranged along the Z direction. The heat storage component 20 may be, for example, a cuboid metal block along the Z direction. The heat storage component 20 is adjacent to the terminal 13 in the horizontal direction (e.g., the Y direction).

[0066] 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.

[0067] 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. Mounting hole 20ha of heat storage member 20 opens toward terminal 13 in the Y direction. Mounting hole 20ha is an insertion hole through which fastening member 41 passes. For example, mounting hole 20ha is a through hole penetrating heat storage member 20 in the Y direction.

[0068] 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 towards the first side in the Z direction. In this embodiment, the mounting hole 20hb opens towards the mounting hole 31h of the first connection portion 31 of the busbar 30A in 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 in the Z direction. The mounting hole 20hb is an example of a "mounting hole".

[0069] 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 towards the second side in the Z direction. In this embodiment, the mounting hole 20hc opens towards the mounting hole 31h of the busbar 30B or the mounting hole 31h of the busbar 30C in the Z direction. 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 in the Z direction.

[0070] Next, the arrangement of the multiple thermal storage components 20 will be described.

[0071] 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".

[0072] 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.

[0073] 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 ).

[0074] 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.

[0075] 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.

[0076] 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.

[0077] <3.3 Busbar>

[0078] Busbar 30 will be referenced again Figure 2 and Figure 3 The busbar 30 is a wiring component used to 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.

[0079] 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.

[0080] (First connecting part)

[0081] 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.

[0082] The first connecting portion 31 has a mounting hole 31h into which the fastening member 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 that penetrates 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.

[0083] (Second connecting part)

[0084] The second connection portion 32 is connected to any part of the electronic component 10, the heat storage member 20, the busbar 30, or the 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.

[0085] 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.

[0086] (Extension)

[0087] 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.

[0088] Next, the arrangement of the multiple busbars 30 will be described.

[0089] The following describes three busbars 30 electrically connected to electronic components 10 via multiple heat storage components 20. The main body MU includes busbars 30A, 30B, 30C, and 30D, which are the multiple busbars 30. Busbar 30A is an example of a "first wiring component." Busbar 30D is an example of a "second wiring component." The "wiring component" of this disclosure is not limited to busbars 30.

[0090] For example, busbar 30A is connected to one of the motor drive unit (inverter) and the charging circuit (input terminal), while busbar 30B is connected to the other of the motor drive unit and the charging circuit. Alternatively, unlike the example above, busbar 30A is connected to one of the front motor drive unit (inverter) and the rear motor drive unit (inverter), and busbar 30B is connected to the other of the front motor drive unit and the rear motor drive unit.

[0091] (Bus strip 30A)

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] The fastening member 43 is inserted into the mounting hole 32h of the second connecting portion 32 of the busbar 30A along the Z direction. In the busbar 30A, the engaging member 44 (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 along the Z direction from the first side. 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 connecting portion 32 of the busbar 30A.

[0097] The fastening member 43 will now be described in detail. The fastening member 43 is an assembly used to secure the busbar 30 and corresponding electronic components 10, heat storage components 20, or busbars for external connections. The fastening member 43 may be, for example, a riveting bolt fixed to the busbar 30. The fastening member 43 is an example of a "fastening part".

[0098] The fastening member 43 may be, for example, a bolt having a shaft portion 43a and a head 43b. The circumferential surface of the shaft portion 43a has a threaded groove. The diameter of the head 43b is larger than the diameter of the shaft portion 43a. With the shaft portion 43a passing through the through hole 32h of the busbar 30, the head 43b of the fastening member 43 is fixed to the busbar 30 by riveting. Through this fixing method, with the shaft portion 43a extending from the through hole 32h of the busbar 30 in the +Z direction, the fastening member 43 is electrically and physically connected to the busbar 30. The fixing method of the fastening member 43 is not limited to riveting; it may also be fixed to the busbar 30 by welding or other methods.

[0099] For example, in busbar 30D (described later), the shaft portion 43a of the fastening member 43 is inserted into the mounting hole 31h of the first connecting portion 31 (see [link]). Figure 2 The engaging member 44 (e.g., a nut) engages with the shaft portion 43a of the fastening member 43 extending from the first connecting portion 31 of the busbar 30D. The engaging member 44 is mounted on the shaft portion 43a in the Z direction. This engagement secures the first connecting portion 31 of the busbar 30D to the fastening member 43 (see...). Figure 1 In this embodiment, the fastening member 43 inserted into the first connecting portion 31 of the busbar 30D is installed on the busbar 30A at a position that overlaps with the heat storage member 20B when viewed from the Z direction.

[0100] 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.

[0101] (Bus strip 30B)

[0102] The busbar 30B has a first connecting portion 31, a second connecting portion 32, and an extension portion 33. 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 extends from the second side in the Z direction toward the heat storage member 20A. At this time, the mounting hole 31h of the first connecting portion 31 of the busbar 30B opens in the Z direction.

[0103] 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.

[0104] 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.

[0105] 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 ).

[0106] 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.

[0107] When viewed from the Z direction, busbar 30A, which is the first wiring component, and busbar 30B, which is the second wiring component, extend in different directions (see...). Figure 5 In this structure, since the wiring paths hardly interfere with each other, it is easy to miniaturize the electrical connection device 1.

[0108] (Busbar 30C)

[0109] The busbar 30C has a first connecting part 31.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] (Bus strip 30D)

[0114] The busbar 30D has a first connecting portion 31. For example, the busbar 30D may be a busbar for external connection.

[0115] The first connecting portion 31 of the busbar 30D is a plate-like portion extending along the X and Y directions. For example, the first connecting portion 31 of the busbar 30D faces the first connecting portion 31 of the busbar 30A in the Z direction. For example, the busbar 30D faces the first connecting portion 31 of the busbar 30A from its first side (e.g., the +Z direction side) in the Z direction. At this time, the mounting hole 31h of the first connecting portion 31 of the busbar 30D opens in the Z direction. The mounting hole 31h of the first connecting portion 31 of the busbar 30D overlaps with the mounting hole 32h of the second connecting portion 32 of the busbar 30A in the Z direction. In this way, the busbar 30D is physically and electrically connected to the busbar 30A by the fastening member 43 installed on the busbar 30A. The busbar 30D is thermally connected to the heat storage member 20B through the busbar 30A.

[0116] Next, fastening member 41 and fastening member 42 will be described in detail.

[0117] 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.

[0118] 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 ).

[0119] 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.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] Next, the installation method of the thermal storage component 20B will be described.

[0124] 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.

[0125] Next, the various connection objects connected to the thermal storage component 20B will be described.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] <4. Insulation Part>

[0130] Next, we will refer to again Figure 4 Description of insulation part 60.

[0131] The insulating portion 60 is an insulating member used to ensure an insulating distance is maintained 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.

[0132] The wall portion 61 has a plate-like structure extending along the Z and X directions. The wall portion 61 overlaps with the heat storage members 20A and 20B in the Y direction. 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 penetrating the wall portion 61 along its thickness direction (plate thickness direction).

[0133] 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., along the X direction), the peripheral wall portion 62 covers the peripheral surface of the heat storage member 20A and the peripheral surface of the heat storage member 20B.

[0134] The peripheral wall portion 62 has a plurality of insertion holes 62h that open in the Z direction. In this embodiment, the peripheral wall portion 62 includes insertion holes 62ha, 62hb, 62hc and 62hd, which are the plurality of insertion holes 62h.

[0135] 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).

[0136] 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 are interconnected 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 the heat storage member 20A in, the heat storage member 20A can also be integrally formed with the insulation portion 60 after being inserted into the insertion hole 62h by, for example, insert molding or other means.

[0137] 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.

[0138] 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 insulation 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 insulation portion 60 after being inserted into the insertion hole 62h by, for example, insert molding or other means.

[0139] In this embodiment, the two heat storage components 20 (heat storage components 20A and 20B) are electrically connected to the terminals 13 (terminals 13A and 13B) by means of a fastening member 41 passing through the insertion hole 61h while integrated with the insulating part 60.

[0140] <5. Insulating sheets and heat transfer components>

[0141] Next, we will refer to Figures 6 to 8 Describe the insulating sheet 7, the heat transfer component 8, and the insulator 9.

[0142] <5.1 Insulating Sheet>

[0143] 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.

[0144] 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 exchange member 8 is disposed directly below the insulating sheet 7.

[0145] <5.2. Heat Transfer Components>

[0146] 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.

[0147] 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.

[0148] 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.

[0149] <5.3. Insulators>

[0150] 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.

[0151] 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 busbar 30 (e.g., busbar 30A) and the solid member 43 and the heat storage member 20 (e.g., heat storage member 20B). 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.

[0152] 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).

[0153] <6. Advantages>

[0154] In this embodiment, the electrical connection device 1 includes an electronic component 10 having a first terminal (e.g., terminal 13B), a first metal block (e.g., heat storage member 20B), a first wiring member (e.g., busbar 30A), a fastening part (e.g., fastening member 43), and a second wiring member (e.g., busbar 30D). The first metal block is adjacent to and connected to the first terminal in a first direction (e.g., the Y direction). The first wiring member faces the first metal block in a second direction (e.g., the Z direction) intersecting the first direction. The fastening part is mounted on the first wiring member at a position overlapping the first metal block when viewed from the second direction. The second wiring member is connected to the first wiring member by means of the fastening part.

[0155] In this structure, since the fastening part connecting the second wiring component and the first wiring component can be supported by the first metal block, there is no need to provide a separate base part for supporting the fastening part. As a result, the electrical connection device 1 can be miniaturized.

[0156] In this embodiment, the electrical connection device 1 further includes an insulator 9, which is disposed in the second direction between the first wiring member and the fastening part and the first metal block. The first wiring member is electrically insulated from the first metal block and is thermally connected to the first metal block through the insulator 9.

[0157] In this structure, the first wiring component is thermally connected to the first metal block via an insulator 9. Since the first wiring component is electrically insulated from the first metal block, it facilitates heat dissipation from the first metal block. Therefore, the thermal performance of the electrical connection device 1 is improved.

[0158] In this embodiment, the electrical connection device 1 further includes a second metal block (e.g., a heat storage member 20A) and a fastening member (e.g., a fastening member 42). The first wiring member has a through-hole (e.g., a mounting hole 31h) opening in a second direction. The first wiring member faces the second metal block in the second direction. The electronic component 10 includes a second terminal (e.g., terminal 13A) aligned with the first terminal in a third direction (e.g., the X direction), which intersects the first and second directions. The second metal block is adjacent to and connected to the second terminal. The second metal block has a mounting hole (e.g., a mounting hole 20hb) opening in the second direction towards the through-hole. The fastening member passes through the through-hole and the mounting hole, connecting the second metal block and the first wiring member.

[0159] In this structure, the first wiring component is thermally connected to the first metal block via an insulator 9. The first wiring component is electrically insulated from the first metal block, thus enabling efficient wiring around the perimeter of the first metal block. Consequently, the electrical connection device 1 can be miniaturized.

[0160] <7. Variations>

[0161] 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.

[0162] <7.1. First Variation>

[0163] In this disclosure, the structure in which the busbar 30 housed in the receiving portion 55 is integrated with the base member 50 by insert molding is not particularly limited. For example, the busbar 30 can be disposed in the receiving portion 55 after the base member 50 with the receiving portion 55 housing the busbar 30 has been molded. In this case, the busbar 30 can be fixed to the receiving portion 55 by fitting, or by adhesive or other fixing methods. In these cases, potting can be performed to fill the gap between the busbar 30 and the receiving portion 55.

[0164] <7.2. Second Variation>

[0165] In this embodiment, mounting holes 20hb and 20hc are bottomed holes located on the heat storage member 20. On the other hand, in this modified example, mounting holes 20hb and 20hc can communicate with each other. In this case, mounting holes 20hb and 20hc can overlap each other in the Z direction.

[0166] <7.3. Third Variation>

[0167] For example, the metal plate may be non-conductive. For example, busbars 30B and / or busbars 30C that overlap with the heat transfer member 8 in the Z direction may be non-conductive. For example, busbars 30B and / or busbars 30C may be provided with an insulating coating. With this structure, busbars 30B and / or busbars 30C can indirectly support the electronic component 10 on the base member 50 while also functioning as cooling members to cool the heat storage member 20.

[0168] 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.

[0169] Reference symbol

[0170] 1 Electrical connection device

[0171] 5. Shell

[0172] 7 Insulating sheet

[0173] 8 Heat transfer components

[0174] 9. Insulators

[0175] 10 Electronic Components

[0176] 11. Outer shell

[0177] 11a Insulating Rib

[0178] 12 Components

[0179] 13 terminals

[0180] 13A terminal (second terminal)

[0181] 13B terminal (first terminal)

[0182] 13h mounting hole

[0183] 14 Installation Department

[0184] 14h mounting hole

[0185] 19 Fastening components

[0186] 20 Thermal storage components

[0187] 20A Thermal Storage Component (Second Metal Block)

[0188] 20B Thermal storage component (first metal block)

[0189] 20h mounting hole

[0190] 20ha mounting holes

[0191] 20hb mounting holes

[0192] 20hc mounting holes

[0193] 30 busbars

[0194] 30A Busbar (First Wiring Component)

[0195] 30B Busbar

[0196] 30C Busbar

[0197] 30D Busbar (Second Wiring Component)

[0198] 31 First connecting part

[0199] 31h Mounting hole (through hole)

[0200] 32 Second connecting part

[0201] 32h mounting hole

[0202] 33 Extension

[0203] 34 Fixing part

[0204] 34h mounting hole

[0205] 41 Fastening components

[0206] 411 First Axis

[0207] 412 First head

[0208] 42 Fastening components (fastening parts)

[0209] 421 Second Axis

[0210] 422 Second head

[0211] 43 Fastening components (fastening parts)

[0212] 50 Base components

[0213] 50a First Surface

[0214] 50b Second Surface

[0215] 51. Planar section

[0216] 52 Wall section

[0217] 53 Fixed Part

[0218] 53h mounting hole

[0219] 54. Base section

[0220] 55. Accommodation Department

[0221] 55B Reception Section

[0222] 55C Reception Section

[0223] 59 Insert nut

[0224] 60 Insulation section

[0225] 61 Wall section

[0226] 61h Insertion Hole

[0227] 62 Peripheral wall

[0228] 62h Insertion Hole

[0229] 62ha insertion hole

[0230] 62hb insertion hole

[0231] 62hc Insertion Hole

[0232] 62hd Insertion Hole

[0233] CM cooling components

[0234] CS cooling surface

[0235] MU main body

[0236] R region

Claims

1. An electrical connection device, comprising: An electronic component having a first terminal; A first metal block, which is adjacent to and connected to the first terminal along a first direction; A first wiring component faces the first metal block along a second direction intersecting the first direction; The fastening part is installed on the first wiring component at a position where it overlaps with the first metal block when viewed from the second direction; as well as The second wiring component is connected to the first wiring component by the fastening part.

2. The electrical connection device according to claim 1, further comprising: An insulator, located along the second direction between the first wiring member and the fastener and the first metal block. The first wiring component is electrically insulated from the first metal block and is thermally connected to the first metal block through the insulator.

3. The electrical connection device according to claim 1 or 2, further comprising: Second metal block; as well as Fastening components; The first wiring component has a through hole that opens along the second direction and faces the second metal block along the second direction. The electronic component has a second terminal, which is aligned with the first terminal along a third direction intersecting the first and second directions. The second metal block is adjacent to and connected to the second terminal. The second metal block has a mounting hole that faces the through-hole opening along the second direction, and The fastening member passes through the through hole and the mounting hole, and connects the second metal block to the first wiring member.

Images