Shield connection part

Abstract

A shield connection member includes a first member, a conductive structure, and a second member. The first member faces the first bus bar and the second bus bar from a third direction crossing the first direction and the second direction. The conductive structure includes: a first conductive portion in contact with a shield layer of the first bus bar; a second conductive portion in contact with the shield layer of the second bus bar; and a ground connection part which electrically connects the first conductive part and the second conductive part to the ground. And a second member that is disposed on the opposite side of the first member with respect to the first bus bar and the second bus bar, and that, when combined with the first member, presses the first bus bar toward the first conductive portion and presses the second bus bar toward the second conductive portion.

Description

Technical Field

[0001] Embodiments of the present invention relate to a shielding connection component. Background Art

[0002] A conductive path including a plurality of bus bars has been proposed. The conductive path includes: an insulating portion that surrounds the outer peripheries of the plurality of bus bars; and a shielding member that collectively surrounds the plurality of bus bars and the insulating portion.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2011-146237 Summary of the Invention

[0006] Technical Problem to be Solved by the Invention

[0007] However, in the case where a plurality of bus bars are arranged, when a configuration in which each of the plurality of bus bars has a shielding layer is assumed, the operation for grounding the shielding layers of the plurality of bus bars may become complicated.

[0008] One embodiment of the present disclosure provides a shielding connection component capable of improving workability.

[0009] Technical Means for Solving the Technical Problem

[0010] A shielding connection component according to an embodiment is a component for a layout unit including a first bus bar and a second bus bar. The first bus bar and the second bus bar each have a conductor, an insulating coating covering the outer periphery of the conductor, and a shielding layer covering the outer periphery of the insulating coating. The shielding connection component includes a first member, a conduction structure, and a second member. The first member faces the first bus bar and the second bus bar from the third direction when the direction in which the first bus bar and the second bus bar are arranged is set as the first direction, the direction in which the end of the conductor protrudes from the shielding layer is set as the second direction, and the direction intersecting the first direction and the second direction is set as the third direction. The conduction structure includes a first conduction part, a second conduction part, and a ground connection part. The first conduction part is disposed between the first bus bar and the first member in the third direction and is in contact with the shielding layer of the first bus bar. The second conduction part is disposed between the second bus bar and the first member in the third direction and is in contact with the shielding layer of the second bus bar. The ground connection part electrically connects the first conduction part and the second conduction part to the ground individually or integrally. The second member is disposed on the opposite side of the first member with respect to the first bus bar and the second bus bar, and when combined with the first member, presses the first bus bar against the first conduction part and presses the second bus bar against the second conduction part.

[0011] Advantages of the Invention

[0012] According to an embodiment, a shielding connection component capable of improving workability can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a perspective view showing the layout unit of the embodiment.

[0014] Figure 2 is an exploded perspective view showing a part of the layout unit of the embodiment.

[0015] Figure 3 is a perspective view showing the end of the shielding bus bar of the embodiment.

[0016] Figure 4 is along Figure 3 a cross-sectional view taken along line F4-F4 of the shielding bus bar shown.

[0017] Figure 5 is a view showing the layout unit of the embodiment.

[0018] Figure 6 is a perspective view showing a part of the shielding connection component according to the first modification of the embodiment.

[0019] Figure 7 This is a perspective view of a part of a shielding connection component showing a second modification of the embodiment.

[0020] Figure 8 This is a perspective view of the back surface of a base showing a second modification of the embodiment.

[0021] Figure 9 This is a view showing a layout unit of a third modification of the embodiment. Detailed Embodiment

[0022] Hereinafter, the embodiment will be described with reference to the drawings. In the following description, components having the same or similar functions are denoted by the same reference numerals. Also, repeated descriptions of these components may be omitted. In the present disclosure, terms are defined as follows. "Connection" is not limited to mechanical connection and may include electrical connection. That is, "connection" is not limited to the case where two elements as connection objects are directly connected, and may also include the case where two elements as connection objects are connected with other elements intervening therebetween.

[0023] In the present disclosure, the +X direction, -X direction, +Y direction, -Y direction, +Z direction, and -Z direction are defined as follows. The +X direction is the direction in which the end portion 11e of the conductor 11 protrudes from the shielding layer 13 described later (see Figure 3 ). The -X direction is the direction opposite to the +X direction. When the +X direction and the -X direction are not distinguished, they are simply referred to as the "X direction". The +Y direction and the -Y direction are directions intersecting (e.g., orthogonal) to the X direction. The +Y direction is the direction from the first shielding bus bar 10A described later toward the second shielding bus bar 10B (see Figure 2 ). The -Y direction is the direction opposite to the +Y direction. When the +Y direction and the -Y direction are not distinguished, they are simply referred to as the "Y direction". The +Z direction is the direction intersecting (e.g., orthogonal) to the X direction and the Y direction. The +Z direction is the direction from the base 30 described later toward the cover 60 (see Figure 2 ). The -Z direction is the direction opposite to the +Z direction. When the +Z direction and the -Z direction are not distinguished, they are simply referred to as the "Z direction". The Y direction is an example of the "first direction". The X direction is an example of the "second direction". The Z direction is an example of the "third direction".

[0024] (Embodiment)

[0025] <1. Configuration of Layout Unit>

[0026] Figure 1This is a perspective view of the layout unit 1 showing an embodiment. The layout unit 1 is a component for electrically connecting a plurality of components (such as a plurality of vehicle-mounted components). The layout unit 1 includes, for example, a plurality of shielded busbars 10, shielded connection components 20, and fixing members 71, 72.

[0027] <2. Shielded busbar>

[0028] First, the shielded busbar 10 will be described. The shielded busbar 10 is a busbar having a shielding structure. In addition, in the present disclosure, the term "shielded busbar" is used for convenience of explanation and does not limit the scope of the invention to a specific structure.

[0029] Figure 2 This is a perspective view showing a part of the layout unit 1 in an exploded manner. In the present embodiment, the plurality of shielded busbars 10 include a first shielded busbar 10A and a second shielded busbar 10B. The first shielded busbar 10A is an example of a "first busbar". The second shielded busbar 10B is an example of a "second busbar".

[0030] The first shielded busbar 10A and the second shielded busbar 10B have, for example, the same shape as each other. However, the first shielded busbar 10A and the second shielded busbar 10B may also have different shapes from each other. Hereinafter, without distinguishing between the first shielded busbar 10A and the second shielded busbar 10B, they will be simply referred to as "shielded busbar 10".

[0031] Figure 3 This is a perspective view showing the end portion 10e of the shielded busbar 10. Figure 4 This is along Figure 3 A cross-sectional view taken along line F4 - F4 of the shielded busbar 10 shown. The shielded busbar 10 includes, for example, a conductor 11, an insulating coating 12, and a shielding layer 13.

[0032] <2.1 Conductor>

[0033] The conductor 11 forms a conduction path through which current or a signal flows in the shielded busbar 10. The conductor 11 is, for example, made of metal. The conductor 11 is, for example, a prismatic member having a flat rectangular cross-sectional shape.

[0034] As Figure 4As shown, the conductor 11 has a first main surface 11s1, a second main surface 11s2, a first side surface 11s3, and a second side surface 11s4. The first main surface 11s1 is at the end of the conductor 11 on the -Z direction side. The first main surface 11s1 is a plane along the X direction and the Y direction. The second main surface 11s2 is at the end of the conductor 11 on the +Z direction side. The second main surface 11s2 is a plane along the X direction and the Y direction. The first side surface 11s3 is at the end of the conductor 11 on the -Y direction side. The first side surface 11s3 is a plane along the X direction and the Z direction. The second side surface 11s4 is at the end of the conductor 11 on the +Y direction side. The second side surface 11s4 is a plane along the X direction and the Z direction. In the present embodiment, the first main surface 11s1 and the second main surface 11s2 are larger than the first side surface 11s3 and the second side surface 11s4.

[0035] As Figure 3 shown, the conductor 11 has an end portion 11e as the end portion on the +X direction side. The end portion 11e of the conductor 11 protrudes in the +X direction from the end portion 12e of the insulating coating film 12 described later. The end portion 11e is not covered by the insulating coating film 12 and the shielding layer 13 and is exposed to the outside of the shielding bus bar 10.

[0036] As Figure 1 shown, the end portion 11e is connected to the terminal T of the external component MC. The external component MC is a component that is the electrical connection destination of the laying unit 1. The end portion 11e has a through hole 11h. The fixing member 71 that fixes the end portion 11e to the terminal T passes through the through hole 11h. The fixing member 71 is a fastening member such as a bolt, for example.

[0037] <2.2 Insulating Coating Film>

[0038] Return Figure 3 and Figure 4 , and the insulating coating film 12 will be described. The insulating coating film 12 is an insulating member that covers the outer periphery of the conductor 11. The insulating coating film 12 is, for example, a synthetic resin. For the conductor 11 having a flat rectangular cross-sectional shape, the insulating coating film 12 covers the outer periphery of the conductor 11 so as to surround the entire circumference of the cross-sectional shape. The insulating coating film 12 has an end portion 12e as the end portion on the +X direction side. The end portion 12e of the insulating coating film 12 is not covered by the shielding layer 13 and is exposed to the outside of the shielding bus bar 10.

[0039] <2.3 Shielding Layer>

[0040] The shielding layer 13 is a shielding portion that covers the outer periphery of the insulating coating film 12. The shielding layer 13 is, for example, a shielding portion for noise reduction. The shielding layer 13 is a braid, a mesh structure, a metal foil, or the like, but is not limited thereto. In the present embodiment, the shielding layer 13 is integrated with the conductor 11 and the insulating coating film 12. For example, for the conductor 11 having a flat rectangular cross-sectional shape, the shielding layer 13 covers the outer periphery of the insulating coating film 12 so as to surround the entire circumference of the cross-sectional shape.

[0041] As Figure 4 shown, the shielding layer 13 has a first main surface portion 13s1, a second main surface portion 13s2, a first side surface portion 13s3, and a second side surface portion 13s4.

[0042] The first main surface portion 13s1 is an end portion of the shielding layer 13 on the -Z direction side. The first main surface portion 13s1 is a flat portion along the X direction and the Y direction. The first main surface portion 13s1 is a flat portion along the first main surface 11s1 of the conductor 11.

[0043] The second main surface portion 13s2 is an end portion of the shielding layer 13 on the +Z direction side. The second main surface portion 13s2 is a flat portion along the X direction and the Y direction. The second main surface portion 13s2 is a flat portion along the second main surface 11s2 of the conductor 11.

[0044] The first side surface portion 13s3 is an end portion of the shielding layer 13 on the -Y direction side. The first side surface portion 13s3 is a flat portion along the X direction and the Z direction. The first side surface portion 13s3 is a flat portion along the first side surface 11s3 of the conductor 11.

[0045] The second side surface portion 13s4 is an end portion of the shielding layer 13 on the +Y direction side. The second side surface portion 13s4 is a flat portion along the X direction and the Z direction. The second side surface portion 13s4 is a flat portion along the second side surface 11s4 of the conductor 11.

[0046] In addition, in the present disclosure, the "flat portion" is not limited to a strictly flat portion, and may include a portion that can be regarded as flat when observed macroscopically. For example, even a portion having a small height difference, depression, or gap due to being formed of a braid or a mesh structure may be an example of the "flat portion" in the present disclosure.

[0047] The shielding layer 13 has an end portion 13e as an end portion on the +X direction side. The end portion 13e of the shielding layer 13 is located on the -X direction side compared to the end portion 12e of the insulating coating film 12. The shielding layer 13 is exposed to the outside of the shielding bus bar 10.

[0048] <2.4 Shape of the Shielding Bus Bar>

[0049] In the present embodiment, the shielding bus bar 10 has an end portion 10e as the end portion on the +X direction side. The end portion 10e of the shielding bus bar 10 includes, for example, an end portion 11e of the conductor 11, an end portion 12e of the insulating coating film 12, and an end portion 13e of the shielding layer 13. In the present embodiment, the end portion 10e of the shielding bus bar 10 extends linearly in the X direction.

[0050] <2.5 Configuration Structure of Two Shielding Bus Bars>

[0051] As Figure 2 shown, the first shielding bus bar 10A and the second shielding bus bar 10B are arranged along the Y direction. The first shielding bus bar 10A and the second shielding bus bar 10B are arranged along the Y direction with the short sides included in the flat rectangular cross-sectional shape of the conductor 11 facing each other, for example.

[0052] In addition, in the present disclosure, "the first bus bar and the second bus bar are arranged along the first direction" is not limited to the case where the first bus bar and the second bus bar are arranged along the above-mentioned first direction over the entire lengths of the first bus bar and the second bus bar. "The first bus bar and the second bus bar are arranged along the first direction" may also include the following case: a part of the first bus bar (for example, the end portion 10e on the +X direction side) and a part of the second bus bar (for example, the end portion 10e on the +X direction side) are arranged along the above-mentioned first direction, but the other parts of the first bus bar and the second bus bar are not arranged along the above-mentioned first direction.

[0053] <3. Shielding Connection Component>

[0054] Next, with reference to Figure 2 , the shielding connection component 20 will be described. The shielding connection component 20 is a component for grounding the shielding layers 13 of a plurality of shielding bus bars 10. The shielding connection component 20 has, for example, a base 30, a conduction structure 40, and a cover 60.

[0055] <3.1 Base>

[0056] The base 30 is a member facing a plurality of shielding bus bars 10 from the -Z direction. The base 30 is an example of the "first member". The base 30 is formed of an insulating material such as insulating resin, for example. The base 30 includes, for example, a first main wall portion 31, a first side wall portion 32, a second side wall portion 33, and a standing wall portion 34. The +Z direction side of the base 30 is open.

[0057] (First Main Wall Portion)

[0058] The first main wall portion 31 is a wall portion facing the plurality of shield busbars 10 (the first shield busbar 10A and the second shield busbar 10B) from the -Z direction. The first main wall portion 31 is, for example, a wall portion along the X direction and the Y direction. The first main wall portion 31 includes a first region R1 and a second region R2.

[0059] The first region R1 is a portion facing the first shield busbar 10A from the -Z direction. The first region R1 defines the -Z direction side surface of the first accommodation portion S1 of the shield connection member 20. The first accommodation portion S1 is a space portion in the shield connection member 20 where the first shield busbar 10A is disposed.

[0060] The second region R2 is located on the +Y direction side of the first region R1. The second region R2 faces the second shield busbar 10B from the -Z direction. The second region R2 defines the -Z direction side surface of the second accommodation portion S2 of the shield connection member 20. The second accommodation portion S2 is a space portion in the shield connection member 20 where the second shield busbar 10B is disposed.

[0061] In the present embodiment, the first region R1 has a first part 31a and a second part 31b. The first part 31a faces the end portion 12e of the insulating coating film 12 of the first shield busbar 10A from the -Z direction. The second part 31b faces the end portion 13e of the shielding layer 13 of the first shield busbar 10A from the -Z direction. The second part 31b is disposed offset in the -Z direction with respect to the first part 31a in such a manner that the first accommodation portion S1 expands in the -Z direction. A step portion ST1 in the Z direction is formed at the boundary between the first part 31a and the second part 31b. The step portion ST1 extends in the Y direction at a position corresponding to the +X direction side end 13ea of the shielding layer 13 of the first shield busbar 10A.

[0062] Similarly, the second region R2 has a third part 31c and a fourth part 31d. The third part 31c faces the end portion 12e of the insulating coating film 12 of the second shield busbar 10B from the -Z direction. The fourth part 31d faces the end portion 13e of the shielding layer 13 of the second shield busbar 10B from the -Z direction. The fourth part 31d is disposed offset in the -Z direction with respect to the third part 31c in such a manner that the second accommodation portion S2 expands in the -Z direction. A step portion ST2 in the Z direction is formed at the boundary between the third part 31c and the fourth part 31d. The step portion ST2 extends in the Y direction at a position corresponding to the +X direction side end 13ea of the shielding layer 13 of the second shield busbar 10B.

[0063] (First side wall portion)

[0064] The first side wall portion 32 is a wall portion that protrudes from the end portion on the -Y direction side of the first main wall portion 31 toward the +Z direction. The first side wall portion 32 defines the end portion on the -Y direction side of the base 30. The first side wall portion 32 extends along the X direction and the Z direction. The first side wall portion 32 has, for example, a first engaging portion 35 that engages with a third side wall portion 62 of a cover 60 described later. The first engaging portion 35 is, for example, a claw portion that protrudes toward the -Y direction.

[0065] (Second side wall portion)

[0066] The second side wall portion 33 is a wall portion that protrudes from the end portion on the +Y direction side of the first main wall portion 31 toward the +Z direction. The second side wall portion 33 defines the end portion on the +Y direction side of the base 30. The second side wall portion 33 extends along the X direction and the Z direction. The second side wall portion 33 has, for example, a second engaging portion 36 that engages with a fourth side wall portion 63 of a cover 60 described later. The second engaging portion 36 is, for example, a claw portion that protrudes toward the +Y direction.

[0067] (Erect wall portion)

[0068] The erect wall portion 34 is a wall portion that protrudes from the central portion in the Y direction of the first main wall portion 31 toward the +Z direction. The erect wall portion 34 is located between a first region R1 and a second region R2 of the first main wall portion 31. The erect wall portion 34 extends along the X direction and the Z direction. The erect wall portion 34 forms part or all of an insulating wall WI of the shield connection member 20. The insulating wall WI is a partition wall that divides the inside of the shield connection member 20 into a first accommodating portion S1 and a second accommodating portion S2 so that the first shield bus bar 10A and the second shield bus bar 10B do not come into contact with each other.

[0069] <3.2 Conductive structure>

[0070] The conductive structure 40 is a structure that electrically connects the shield layers 13 of a plurality of shield bus bars 10 to the ground. The conductive structure 40 includes, for example, a first conductive portion 41, a second conductive portion 42, and a ground connection portion 43.

[0071] (First conductive portion)

[0072] The first conductive portion 41 is a conductive portion that is in contact with an end portion 13e of the shield layer 13 of the first shield bus bar 10A. The first conductive portion 41 is made of metal. The first conductive portion 41 is provided, for example, on the inner surface of the first main wall portion 31 of the base 30. For example, the first conductive portion 41 is provided in the first region R1 of the first main wall portion 31. For example, the first conductive portion 41 is arranged adjacent to a stepped portion ST1 of the first region R1 from the -X direction side. The first conductive portion 41 is arranged between the first main wall portion 31 of the base 30 and the shield layer 13 of the first shield bus bar 10A in the Z direction. The first conductive portion 41 is in contact with the end portion 13e of the shield layer 13 of the first shield bus bar 10A from the -Z direction.

[0073] The first conduction part 41 has a first leaf spring structure 51. The first leaf spring structure 51 can be elastically deformed in the Z direction. The first leaf spring structure 51 contacts the first main surface portion 13s1 of the shielding layer 13 of the first shielding bus bar 10A from the -Z direction.

[0074] In the present embodiment, the first leaf spring structure 51 includes a plurality of leaf spring portions 51a. The plurality of leaf spring portions 51a each include an arc portion bent so as to protrude toward the +Z direction side and can be elastically deformed in the Z direction. The plurality of leaf spring portions 51a are arranged, for example, along the Y direction. The plurality of leaf spring portions 51a each contact the first main surface portion 13s1 of the shielding layer 13 of the first shielding bus bar 10A from the -Z direction.

[0075] (Second conduction part)

[0076] The second conduction part 42 is a conduction part that contacts the end portion 13e of the shielding layer 13 of the second shielding bus bar 10B. The second conduction part 42 is made of metal. The second conduction part 42 is provided, for example, on the inner surface of the first main wall portion 31 of the base 30. For example, the second conduction part 42 is provided in the second region R2 of the first main wall portion 31. The second conduction part 42 is arranged adjacent to the step portion ST2 of the second region R2 from the -X direction side, for example. The second conduction part 42 is arranged in the Z direction between the first main wall portion 31 of the base 30 and the shielding layer 13 of the second shielding bus bar 10B. The second conduction part 42 contacts the end portion 13e of the shielding layer 13 of the second shielding bus bar 10B from the -Z direction.

[0077] The second conduction part 42 has a second leaf spring structure 52. The second leaf spring structure 52 can be elastically deformed in the Z direction. The second leaf spring structure 52 contacts the first main surface portion 13s1 of the shielding layer 13 of the second shielding bus bar 10B from the -Z direction.

[0078] In the present embodiment, the second leaf spring structure 52 includes a plurality of leaf spring portions 52a. The plurality of leaf spring portions 52a each include an arc portion bent so as to protrude toward the +Z direction side and can be elastically deformed in the Z direction. The plurality of leaf spring portions 52a are arranged, for example, along the Y direction. The plurality of leaf spring portions 52a each contact the first main surface portion 13s1 of the shielding layer 13 of the second shielding bus bar 10B from the -Z direction.

[0079] (Ground connection part)

[0080] The ground connection part 43 is an electrical connection part that electrically connects the first conduction part 41 and the second conduction part 42 individually or integrally to the ground. In the present embodiment, the ground connection part 43 electrically connects the first conduction part 41 and the second conduction part 42 individually to the ground. The ground connection part 43 has, for example, a first terminal 43a, a second terminal 43b, a first lead wire 43c, and a second lead wire 43d.

[0081] The first terminal 43a is physically and electrically connected to the mounting portion TP of the external member MB which is at the ground potential (refer to Figure 1 , for example, a protrusion of the vehicle body panel). The first terminal 43a is, for example, a metal ring. The first terminal 43a has a through-hole 43h, for example. The fixing member 72 that fixes the first terminal 43a to the mounting portion TP passes through the through-hole 43h. The fixing member 72 is a fastening member such as a bolt, for example.

[0082] The second terminal 43b is physically and electrically connected to the mounting portion TP of the external member MB which is at the ground potential (refer to Figure 1 , for example, a protrusion of the vehicle body panel). The second terminal 43b is, for example, a metal ring. The second terminal 43b has a through-hole 43h, for example. The fixing member 72 that fixes the second terminal 43b to the mounting portion TP passes through the through-hole 43h.

[0083] The first lead wire 43c extends between the first terminal 43a and the first conduction portion 41. The first lead wire 43c electrically connects the first terminal 43a and the first conduction portion 41. The first conduction portion 41 is electrically connected to the mounting portion TP of the external member MB via the first lead wire 43c and the first terminal 43a.

[0084] The second lead wire 43d extends between the second terminal 43b and the second conduction portion 42. The second lead wire 43d electrically connects the second terminal 43b and the second conduction portion 42. The second conduction portion 42 is electrically connected to the mounting portion TP of the external member MB via the second lead wire 43d and the second terminal 43b.

[0085] <3.3 Cover>

[0086] The cover 60 is a member disposed on the opposite side of the base 30 with respect to the plurality of shield busbars 10. The cover 60 faces the plurality of shield busbars 10 from the +Z direction. The cover 60 is an example of the "second member". The cover 60 is formed of an insulating material such as synthetic resin, for example. When the cover 60 is combined with the base 30 (for example, when the cover 60 is engaged with the base 30), the cover 60 presses the end portion 13e of the shielding layer 13 of the first shield busbar 10A against the first conduction portion 41 and presses the end portion 13e of the shielding layer 13 of the second shield busbar 10B against the second conduction portion 42. The cover 60 includes, for example, a second main wall portion 61, a third side wall portion 62, a fourth side wall portion 63, and a standing wall portion 64. The -Z direction side of the cover 60 is open.

[0087] (Second Main Wall Portion)

[0088] The second main wall portion 61 is a wall portion facing the plurality of shielding busbars 10 (the first shielding busbar 10A and the second shielding busbar 10B) from the +Z direction. The second main wall portion 61 is, for example, a wall portion along the X direction and the Y direction. The second main wall portion 61 includes a third region R3 and a fourth region R4. The third region R3 is a portion facing the first shielding busbar 10A from the +Z direction. The third region R3 defines the +Z direction side surface of the first accommodation portion S1. The fourth region R4 is located on the +Y direction side of the third region R3. The fourth region R4 faces the second shielding busbar 10B from the +Z direction. The fourth region R4 defines the +Z direction side surface of the second accommodation portion S2.

[0089] In the present embodiment, the third region R3 has a first portion 61a and a second portion 61b. In addition, the fourth region R4 has a third portion 61c and a fourth portion 61d. Furthermore, for the details of the first portion 61a, the second portion 61b, the third portion 61c, and the fourth portion 61d, respectively, the “-Z direction” in the description of the above first portion 31a, second portion 31b, third portion 31c, and fourth portion 31d may be replaced with the “+Z direction”.

[0090] As Figure 5 shown, in the present embodiment, the second portion 61b is disposed offset in the +Z direction with respect to the first portion 61a in such a manner that the first accommodation portion S1 expands toward the +Z direction side. A stepped portion ST1 in the Z direction is formed at the boundary between the first portion 61a and the second portion 61b. The stepped portion ST1 extends in the Y direction at a position corresponding to the +X direction side end 13ea of the shielding layer 13 of the first shielding busbar 10A. The positioning of the first shielding busbar 10A can be performed, for example, by arranging the end 13ea of the shielding layer 13 of the first shielding busbar 10A along the stepped portion ST1.

[0091] Similarly, the fourth portion 61d is disposed offset in the +Z direction with respect to the third portion 61c in such a manner that the second accommodation portion S2 expands toward the +Z direction side. A stepped portion ST2 in the Z direction is formed at the boundary between the third portion 61c and the fourth portion 61d. The stepped portion ST2 extends in the Y direction at a position corresponding to the +X direction side end 13ea of the shielding layer 13 of the second shielding busbar 10B. The positioning of the second shielding busbar 10B can be performed, for example, by arranging the end 13ea of the shielding layer 13 of the second shielding busbar 10B along the stepped portion ST2.

[0092] (Third side wall portion)

[0093] Return Figure 2 to, and describe the third side wall portion 62.

[0094] The third side wall portion 62 is a wall portion that protrudes in the -Z direction from the end portion on the -Y direction side of the second main wall portion 61. The third side wall portion 62 extends along the X direction and the Z direction. The third side wall portion 62 is adjacent to the first side wall portion 32 from the -Y direction side, for example. The third side wall portion 62 has an engaging portion 65 that engages with the first side wall portion 32. The engaging portion 65 is, for example, an engaging hole that engages with the engaging portion 35 of the base 30 that is a claw portion. When the engaging portion 65 of the cover 60 engages with the engaging portion 35 of the base 30, the base 30 and the cover 60 are combined in such a manner that the second main wall portion 61 presses the plurality of shield busbars 10 toward the conduction structure 40.

[0095] (Fourth side wall portion)

[0096] The fourth side wall portion 63 is a wall portion that protrudes in the -Z direction from the end portion on the +Y direction side of the second main wall portion 61. The fourth side wall portion 63 extends along the X direction and the Z direction. The fourth side wall portion 63 is adjacent to the second side wall portion 33 from the +Y direction side, for example. The fourth side wall portion 63 has an engaging portion 66 that engages with the second side wall portion 33. The engaging portion 66 is, for example, an engaging hole that engages with the engaging portion 36 of the base 30 that is a claw portion. When the engaging portion 66 of the cover 60 engages with the engaging portion 36 of the base 30, the base 30 and the cover 60 are combined in such a manner that the second main wall portion 61 presses the plurality of shield busbars 10 toward the conduction structure 40.

[0097] (Erecting wall portion)

[0098] The erecting wall portion 64 is a wall portion that erects in the -Z direction from the central portion in the Y direction of the second main wall portion 61. The erecting wall portion 64 is located between the third region R3 and the fourth region R4 of the second main wall portion 61. The erecting wall portion 64 extends along the X direction and the Z direction. The erecting wall portion 64 forms part or all of the insulating wall WI. In the present embodiment, the insulating wall WI is formed by combining the erecting wall portion 64 of the cover 60 with the erecting wall portion 34 of the base 30. In addition, instead of the above example, the insulating wall WI may be formed only by the erecting wall portion 34 of the base 30, or may be formed only by the erecting wall portion 64 of the cover 60.

[0099] <3.4 Additional waterproof treatment>

[0100] In addition to the above configuration, the shield connection member 20 may also have a waterproof treatment portion WP (refer to Figure 5 ). The waterproof treatment portion WP is a portion where a waterproof treatment for suppressing corrosion of the conduction structure 40 is performed. The waterproof treatment portion WP is formed between the base 30 and the cover 60 by injecting a potting material therebetween. For example, the waterproof treatment portion WP is formed by injecting a potting material between the base 30 and the cover 60 through an injection hole 85 provided in the base 30 or the cover 60.

[0101] <4. Assembly method of the shielding connection component>

[0102] Next, the assembly method of the shielding connection component 20 will be described. First, in a state where the base 30 and the cover 60 are separated, the first shielding bus bar 10A and the second shielding bus bar 10B are placed inside the base 30.

[0103] Next, the cover 60 is combined with the base 30. For example, in a state where the plurality of shielding bus bars 10 are pressed against the conduction structure 40 by the second main wall portion 61 of the cover 60, causing the first leaf spring structure 51 and the second leaf spring structure 52 to elastically deform, the engaging portions 35 and 36 of the base 30 are engaged with the engaging portions 65 and 66 of the cover 60. Through this operation, the shielding connection component 20 is assembled while ensuring the contact pressure between the first shielding bus bar 10A and the first conduction portion 41 and ensuring the contact pressure between the second shielding bus bar 10B and the second conduction portion 42.

[0104] <5. Advantages>

[0105] As a comparative example, consider a configuration in which a plurality of bus bars each independently have a shielding layer, and grounding components are separately installed for the shielding layers of the plurality of bus bars. In the configuration of this comparative example, the operation of separately installing grounding components for the shielding layers of the plurality of bus bars becomes complicated, and the workability may be reduced.

[0106] On the other hand, in the present embodiment, the shielding connection component 20 includes a base 30, a conduction structure 40, and a cover 60. The base 30 faces the first shielding bus bar 10A and the second shielding bus bar 10B in the Z direction. The conduction structure 40 has a first conduction portion 41, a second conduction portion 42, and a grounding connection portion 43. The first conduction portion 41 is disposed between the first shielding bus bar 10A and the base 30 in the Z direction and is in contact with the shielding layer 13 of the first shielding bus bar 10A. The second conduction portion 42 is disposed between the second shielding bus bar 10B and the base 30 in the Z direction and is in contact with the shielding layer 13 of the second shielding bus bar 10B. The grounding connection portion 43 electrically connects the first conduction portion 41 and the second conduction portion 42 to the ground separately or integrally. The cover 60 is disposed on the opposite side of the base 30 with respect to the first shielding bus bar 10A and the second shielding bus bar 10B. When the cover 60 is combined with the base 30, the cover 60 presses the first shielding bus bar 10A against the first conduction portion 41 and presses the second shielding bus bar 10B against the second conduction portion 42.

[0107] According to such a configuration, even when the plurality of shield busbars 10 individually have the shielding layer 13, the operation of grounding these shielding layers 13 can be performed together. If such an operation can be performed, the operation of grounding the shielding layers 13 of the plurality of shield busbars 10 can be easily performed as compared with the case where the grounding components are individually installed. If the operation of grounding the shielding layers 13 of the plurality of shield busbars 10 can be easily performed, the workability can be improved.

[0108] In the present embodiment, the first conduction part 41 has a first leaf spring structure 51 that can be elastically deformed in the Z direction. The second conduction part 42 has a second leaf spring structure 52 that can be elastically deformed in the Z direction. According to such a configuration, it is easy to appropriately ensure the contact pressure between the shielding layer 13 of the first shield busbar 10A and the first conduction part 41, and it is easy to appropriately ensure the contact pressure between the shielding layer 13 of the second shield busbar 10B and the second conduction part 42.

[0109] In the present embodiment, the shielding layer 13 of the first shield busbar 10A has a first main surface part 13s1 (first flat part) along the X direction and the Y direction. The shielding layer 13 of the second shield busbar 10B has a first main surface part 13s1 (second flat part) along the X direction and the Y direction. The first leaf spring structure 51 includes a plurality of leaf spring parts 51a, and the plurality of leaf spring parts 51a can be elastically deformed in the Z direction respectively and are in contact with the first main surface part 13s1 of the first shield busbar 10A. In addition, the second leaf spring structure 52 includes a plurality of leaf spring parts 52a, and the plurality of leaf spring parts 52a can be elastically deformed in the Z direction respectively and are in contact with the first main surface part 13s1 of the second shield busbar 10B. According to such a configuration, by using the configuration of the shield busbar 10 having a flat part, it is easy to ensure the contact between the shielding layer 13 of the first shield busbar 10A and the first conduction part 41, and it is easy to ensure the contact between the shielding layer 13 of the second shield busbar 10B and the second conduction part 42.

[0110] In the present embodiment, at least one of the base 30 and the cover 60 has an insulating wall WI, and the insulating wall WI divides the inside of the shield connection member 20 into a first accommodation part S1 for arranging the first shield busbar 10A and a second accommodation part S2 for arranging the second shield busbar 10B. According to such a configuration, the situation where the first shield busbar 10A is in contact with the second shield busbar 10B can be reliably avoided. In addition, if the insulating wall WI is provided, the arrangement interval between the first shield busbar 10A and the second shield busbar 10B can be appropriately maintained. If the arrangement interval can be appropriately maintained, the heat dissipation of the first shield busbar 10A and the second shield busbar 10B can be improved.

[0111] <6. Modification Example>

[0112] Next, several modified examples of the embodiment will be described. In addition, in each modified example, the configuration other than those described below is the same as that of the above-described embodiment.

[0113] <6.1 First Modified Example>

[0114] Figure 6 It is a perspective view showing a part of the shielding connection member 20A of the first modified example. In this modified example, the first conduction portion 41 is connected to the second conduction portion 42. The first conduction portion 41 and the second conduction portion 42 are connected via a connection portion 44, for example. The connection portion 44 extends between the first conduction portion 41 and the second conduction portion 42 through the standing wall portion 34 of the base 30 along the Y direction, for example. The first conduction portion 41, the second conduction portion 42, and the connection portion 44 are formed of a single metal member M. The metal member M and the base 30 are integrally formed by insert molding, for example. In addition, instead of passing through the standing wall portion 34, the connection portion 44 may be provided to bypass the standing wall portion 34 as in the second modified example described later.

[0115] In this modified example, the ground connection portion 43 has a single terminal 43b and a single lead 43d. In this modified example, the ground connection portion 43 electrically connects the second conduction portion 42 to the ground, thereby electrically connecting the first conduction portion 41 and the second conduction portion 42 to the ground in a unified manner.

[0116] According to such a configuration, the operation becomes easier compared to the case where the ground connection portion 43 has a plurality of terminals 43a, 43b.

[0117] <6.2 Second Modified Example>

[0118] Figure 7 It is a perspective view showing a part of the shielding connection member 20B of the second modified example. In this modified example, the first conduction portion 41 is connected to the second conduction portion 42 via a connection portion 44. The connection portion 44 is provided to bypass the standing wall portion 34. In addition, instead of bypassing the standing wall portion 34, the connection portion 44 may be provided to connect the first conduction portion 41 and the second conduction portion 42 by passing through the standing wall portion 34 along the Y direction as in the first modified example.

[0119] In this modified example, at least one of the base 30 or the cover 60 has a fixing portion 81 for fixing the shielding connection member 20 to an external member MB. Figure 7 It shows an example in which the fixing portion 81 is provided on the base 30. The fixing portion 81 protrudes from the second side wall portion 33 in the +Y direction, for example. The fixing portion 81 has a mounting surface 81a that comes into contact with the external member MB. The fixing portion 81 has a through hole 81h. The through hole 81h penetrates the fixing portion 81 in the Z direction. A fixing member 91 for fixing the fixing portion 81 to the external member MB passes through the through hole 81h. The fixing member 91 is a fastening member such as a bolt, for example.

[0120] Figure 8 This is a perspective view of the back surface of the base 30 showing the second modification. In this modification, the ground connection portion 43 is provided on the mounting surface 81a. For example, the ground connection portion 43, together with the first conduction portion 41, the second conduction portion 42, and the connection portion 44, is formed by a single metal member M (refer to Figure 7 ). The ground connection portion 43 is provided on the mounting surface 81a and exposed in the -Z direction. The fixing portion 81 is fixed to the external member MB by the fixing member 91, so that the ground connection portion 43 comes into contact with the external member MB and is electrically connected to the external member MB. The ground connection portion 43 is electrically connected to the ground via the external member MB.

[0121] According to such a configuration, by performing the operation of fixing the shielding connection member 20 to the external member MB, the ground connection portion 43 can be electrically connected to the ground.

[0122] <6.3 Third Modification>

[0123] Figure 9 This is a cross-sectional view of the shielding connection member 20C showing the third modification. In this modification, the shielding layer 13 of the shielding bus bar 10 is a woven fabric or a mesh-like structure, etc., and has a plurality of depressions or voids, etc.

[0124] In this modification, at least one of the base 30 and the cover 60 includes a plurality of first protrusions 101 and a plurality of second protrusions 102. In the Figure 9 illustrated example, the base 30 and the cover 60 each include a plurality of first protrusions 101 and a plurality of second protrusions 102.

[0125] The plurality of first protrusions 101 project from the first main wall portion 31 or the second main wall portion 61 into the interior of the shielding connection member 20C. The plurality of first protrusions 101 are arranged at equal intervals, for example, in the X direction and the Y direction. The plurality of first protrusions 101 bite into the end portion 13e of the shielding layer 13 of the first shielding bus bar 10A from the Z direction.

[0126] The plurality of first protrusions 101 include, for example, two or more first protrusions 101 arranged at different positions in the Y direction. In the present disclosure, "arranged at different positions in the Y direction" is not limited to the case of being arranged along the Y direction, and may also include the case of being arranged at positions inclined and offset with respect to the Y direction. These two or more first protrusions 101 bite into the first main surface portion 13s1 or the second main surface portion 13s2 of the shielding layer 13 of the first shielding bus bar 10A.

[0127] Similarly, a plurality of second protrusions 102 protrude from the first main wall portion 31 or the second main wall portion 61 into the inside of the shielding connection member 20C. The plurality of second protrusions 102 are arranged at equal intervals, for example, in the X direction and the Y direction. The plurality of second protrusions 102 bite into the end portion 13e of the shielding layer 13 of the second shielding bus bar 10B from the Z direction.

[0128] In this modification, the plurality of second protrusions 102 include, for example, two or more second protrusions 102 arranged at different positions in the Y direction. These two or more second protrusions 102 bite into the first main surface portion 13s1 or the second main surface portion 13s2 of the shielding layer 13 of the second shielding bus bar 10B.

[0129] As described above, in this modification, the shielding connection member 20C includes the first protrusion 101 that bites into the shielding layer 13 of the first shielding bus bar 10A and the second protrusion 102 that bites into the shielding layer 13 of the second shielding bus bar 10B. With such a configuration, the positioning and / or suppression of the position shift of the shielding bus bar 10 can be achieved by the first protrusion 101 and the second protrusion 102.

[0130] In addition, in this modification, two or more first protrusions 101 arranged at different positions in the Y direction bite into the first main surface portion 13s1 or the second main surface portion 13s2 of the shielding layer 13 of the first shielding bus bar 10A. In addition, two or more second protrusions 102 arranged at different positions in the Y direction bite into the first main surface portion 13s1 or the second main surface portion 13s2 of the shielding layer 13 of the second shielding bus bar 10B. With such a configuration, by using the configuration of the shielding bus bar 10 having a flat surface portion, the positioning and / or suppression of the position shift of the first shielding bus bar 10A and the second shielding bus bar 10B can be achieved more firmly.

[0131] Here, if two or more such protrusions are provided on a base or a cover corresponding to a cylindrical shielding cable, all the protrusions are provided facing the center of the conductor. In this case, due to the problem of undercutting occurring during the molding of the base or the cover, it is difficult to provide such protrusions. On the other hand, in the present embodiment, since the protrusions 101 and 102 are provided on the base 30 or the cover 60 corresponding to the shielding bus bar 10 including the square conductor 11, the protrusions 101 and 102 can be easily formed.

[0132] The above has described the embodiment and a plurality of modifications. However, the embodiment and the modifications are not limited to the above examples. For example, a plurality of modifications can also be combined with each other to be implemented. In addition, in the above embodiment, the engaging portions 35 and 36 of the base 30 are claw portions, and the engaging portions 65 and 66 of the cover 60 are engaging holes. Instead of this, the engaging portions 65 and 66 of the cover 60 can also be claw portions, and the engaging portions 35 and 36 of the base 30 can also be engaging holes.

[0133] In addition, the preferred embodiments of the present invention have been described and illustrated above, but these are merely examples of the present invention and are not limited thereto. Additions, omissions, substitutions, and other changes can be made without departing from the scope of the present invention. Therefore, the present invention is not limited by the above description and is only limited by the appended scope of protection.

[0134] Industrial applicability

[0135] According to the present disclosure, it is possible to provide a shielding connection component capable of improving workability.

[0136] Description of reference numerals

[0137] 1…Laying unit

[0138] 10…Shielding bus bar

[0139] 10A…First shielding bus bar (first bus bar)

[0140] 10B…Second shielding bus bar (second bus bar)

[0141] 11…Conductor

[0142] 12…Insulating coating

[0143] 13…Shielding layer

[0144] 20, 20A, 20B, 20C…Shielding connection components

[0145] 30…Base (first member)

[0146] 40…Conduction structure

[0147] 41…First conduction part

[0148] 42…Second conduction part

[0149] 43…Ground connection part

[0150] 44…Connecting part

[0151] 51…First leaf spring structure

[0152] 51a…Leaf spring part

[0153] 52…Second leaf spring structure

[0154] 52a…Leaf spring part

[0155] 60…Cover (second member)

[0156] 81…Fixing part

[0157] 81a…Mounting surface

[0158] S1... First housing part

[0159] S2... Second housing part

[0160] WI... Insulating wall

Claims

1. A shielding connection component, which is a shielding connection component for a layout unit including a first bus bar and a second bus bar, The first bus bar and the second bus bar each include a conductor, an insulating film covering an outer periphery of the conductor, and a shielding layer covering an outer periphery of the insulating film; The shielding connection component comprises: a first member facing the first bus bar and the second bus bar from the third direction when the direction in which the first bus bar and the second bus bar are arranged is set as a first direction, the direction in which the end of the conductor protrudes from the shielding layer is set as a second direction, and a direction intersecting the first direction and the second direction is set as a third direction; A conducting structure, comprising a first conducting portion, a second conducting portion, and a grounding connection portion, wherein the first conducting portion is arranged between the first bus bar and the first component in the third direction and is connected to the shielding layer of the first bus bar, the second conducting portion is arranged between the second bus bar and the first component in the third direction and is connected to the shielding layer of the second bus bar, and the grounding connection portion electrically connects the first conducting portion and the second conducting portion to the ground individually or collectively; The second member is arranged on the opposite side of the first member relative to the first bus bar and the second bus bar, and when combined with the first member, presses the first bus bar toward the first conductive portion and presses the second bus bar toward the second conductive portion.

2. The shielding connection component according to claim 1, The first conductive portion has a first leaf spring structure that can be elastically deformed in the third direction. The second conductive portion has a second leaf spring structure that is elastically deformable in the third direction.

3. The shielding connection component according to claim 2, The shielding layer of the first bus bar has a first flat portion along the first direction and the second direction, The shielding layer of the second bus bar has a second flat portion along the first direction and the second direction, The first leaf spring structure includes a plurality of leaf spring portions that are respectively elastically deformable in the third direction and are in contact with the first flat portion. The second leaf spring structure includes a plurality of leaf spring portions each of which is elastically deformable in the third direction and is in contact with the second flat portion.

4. The shielding connection component according to claim 1 or 2, At least one of the first member and the second member includes an insulating wall that partitions the interior of the shield connection component into a first housing portion in which the first bus bar is disposed and a second housing portion in which the second bus bar is disposed.

5. The shielding connection component according to claim 1 or 2, The first conductive portion is connected to the second conductive portion, The ground connection portion electrically connects the second conductive portion to the ground, thereby electrically connecting the first conductive portion and the second conductive portion to the ground collectively.

6. The shielding connection component according to claim 1 or 2, At least one of the first member and the second member has a fixing portion for fixing the shield connection component to an external member. The fixing portion has a mounting surface connected to the external member; The ground connection portion is arranged on the mounting surface.

7. The shielding connection component according to claim 1 or 2, At least one of the first member and the second member includes a plurality of first protrusions that bite into the shield layer of the first bus bar and a plurality of second protrusions that bite into the shield layer of the second bus bar.

8. The shielding connection component according to claim 7, The shielding layer of the first bus bar has a first flat portion along the first direction and the second direction, The shielding layer of the second bus bar has a second flat portion along the first direction and the second direction, The plurality of first protrusions include two or more first protrusions that are arranged at different positions in the first direction and bite into the first flat portion; The plurality of second protrusions include two or more second protrusions that are arranged at different positions in the first direction and bite into the second flat portion.

Images