Conductive sheet with metal plate
The conductive sheet with a metal plate addresses the challenge of positioning the metal plate and sheet fixing member by using a positioning concave-convex system, achieving stable clamping and effective electromagnetic shielding.
Patent Information
- Application Number
- JP2025014692
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-01-31
- Publication Date
- 2025-04-11
AI Technical Summary
Existing technologies face challenges in easily positioning the metal plate and sheet fixing member that hold a conductive sheet, which is essential for effective electromagnetic shielding and secure clamping.
The conductive sheet with a metal plate includes a conductive sheet, a metal plate, and a separate sheet fixing member. The sheet fixing member is stacked and fixed to the metal plate with a positioning concave portion on the metal plate and a positioning convex portion on the sheet fixing member, allowing for easy alignment and positioning.
This configuration enables easy and precise positioning of the metal plate and sheet fixing member, ensuring stable clamping and effective electromagnetic shielding of the conductive sheet.
Smart Images

Figure 2025061994000001_ABST
Abstract
Description
[Technical field]
[0001] The present disclosure relates to a metal plate-attached conductive sheet. [Background technology]
[0002] Patent Document 1 discloses an electromagnetic shielding member including an electromagnetic shielding part for wiring and an electromagnetic shielding cover for a connection part. The electromagnetic shielding cover for a connection part includes a cover main body that covers the connection part at the end of the wiring member, and a fixing piece that extends from the cover main body and is bent and deformed so as to fold back, thereby clamping and fixing one end edge of the electromagnetic shielding part for wiring.
[0003] Patent Document 2 discloses that the edge of a conductive sheet material is sandwiched between a pair of plate-shaped clamping portions, and that the pair of plate-shaped clamping portions is connected by a folded portion. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] JP 2017-022264 A [Patent Document 2] JP 2015-57758 A Summary of the Invention [Problem to be solved by the invention]
[0005] It has been proposed to sandwich the conductive sheet between two separate metal plates. In such a case, it is desirable to be able to easily position the two members that sandwich the conductive sheet.
[0006] Therefore, an object of the present disclosure is to easily position the metal plate that sandwiches the conductive sheet and the sheet fixing member. [Means for solving the problem]
[0007] The metal plate-attached conductive sheet of the present disclosure comprises a conductive sheet, a metal plate, and a sheet fixing member that is separate from the metal plate, and the sheet fixing member is overlapped and fixed to the metal plate with a portion of the conductive sheet sandwiched between the metal plate and the sheet fixing member, and a positioning recess is formed on one of the metal plate and the sheet fixing member, and a positioning protrusion is formed on the other which contacts the edge of the positioning recess and is positioned. Effect of the Invention
[0008] According to the present disclosure, the metal plate and the sheet fixing member that sandwich the conductive sheet can be easily positioned. [Brief description of the drawings]
[0009] [Figure 1] FIG. 1 is an explanatory diagram showing an example in which a metal plate-attached conductive sheet according to an embodiment is provided between two electric devices. [Diagram 2] FIG. 2 is a perspective view showing a metal plate-attached conductive sheet. [Diagram 3] FIG. 3 is an exploded perspective view of the metal plate-attached conductive sheet. [Figure 4] FIG. 4 is a partial cross-sectional view taken along line IV-IV in FIG. [Diagram 5] FIG. 5 is a perspective view showing a metal plate-attached conductive sheet according to a first modified example. [Figure 6] FIG. 6 is a perspective view showing a metal plate-attached conductive sheet according to a second modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0010] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described.
[0011] The metal plate-attached conductive sheet of the present disclosure is as follows.
[0012] (1) A metal plate-attached conductive sheet includes a conductive sheet, a metal plate, and a sheet fixing member that is separate from the metal plate, and the sheet fixing member is overlapped and fixed to the metal plate with a part of the conductive sheet sandwiched between the metal plate and the sheet fixing member, and a positioning recess is formed on one of the metal plate and the sheet fixing member, and a positioning protrusion that contacts the edge of the positioning recess and is positioned is formed on the other. According to the present disclosure, the sheet fixing member is overlapped on the metal plate with the positioning protrusion contacting the edge of the positioning recess and being positioned. Therefore, the metal plate sandwiching the conductive sheet and the sheet fixing member are easily positioned.
[0013] (2) In the metal plate-attached conductive sheet of (1), the conductive sheet may be in contact with the positioning protrusion. The conductive sheet is also positioned with reference to the positioning protrusion.
[0014] (3) In the metal plate-attached conductive sheet of (2), a window portion may be formed at a position adjacent to the positioning protrusion on the other of the metal plate and the sheet fixing member, which allows the edge of the conductive sheet in contact with the positioning protrusion to be visually confirmed. It is easy to check whether the conductive sheet is inserted until it contacts the positioning protrusion.
[0015] (4) In the conductive sheet with a metal plate according to any one of (1) to (3), the positioning recess may include a positioning hole portion whose entire periphery is surrounded by an edge, and the positioning protrusion may be fitted into the positioning hole portion. Since the positioning protrusion is fitted into the positioning hole portion, the sheet fixing member is more reliably positioned relative to the metal plate.
[0016] (5) In the conductive sheet with a metal plate according to any one of (1) to (4), the positioning recess may include a positioning notch portion partially surrounded by an edge, and the positioning protrusion may be in contact with the edge of the positioning notch portion. The positioning protrusion can be easily moved relatively toward the positioning notch portion while being visually confirmed, and the positioning protrusion can be easily positioned by the positioning notch portion.
[0017] (6) In the conductive sheet with a metal plate according to any one of (1) to (5), the metal plate may be formed with the positioning recess, and the sheet fixing member may be formed with the positioning protrusion. Even if the sheet fixing member has a shape that makes it difficult to distinguish between the front and back, the front and back can be easily distinguished by using the protruding direction of the positioning protrusion as a clue.
[0018] (7) In the conductive sheet with a metal plate according to any one of (1) to (6), the sheet fixing member may be a plate made of metal, and the metal plate and the sheet fixing member may be fixed to each other by a mechanical clinch portion. The metal plate and the sheet fixing member are easily fixed to each other.
[0019] [Details of the embodiment of the present disclosure] Specific examples of the metal plate-attached conductive sheet of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is indicated by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.
[0020] [Embodiment] The metal plate-attached conductive sheet according to the embodiment will be described below. Fig. 1 is an explanatory diagram showing an example in which a metal plate-attached conductive sheet 30 is provided between two electric devices 10, 14 (a first electric device 10 and a second electric device 14). The two electric devices 10, 14 may be devices mounted on a vehicle, for example. Possible combinations of the two electric devices 10, 14 include a motor for driving an electric vehicle and an inverter for driving the motor, or an inverter for driving the motor and a battery for supplying power to the inverter, etc.
[0021] The first electric device 10 has electric components housed in a housing 11. The second electric device 14 also has electric components housed in a housing 15. The housings 11 and 15 are conductive housings formed of a conductive material such as metal.
[0022] A wiring member 20 is connected to at least one of the two electric devices 10, 14. Fig. 1 shows one end of the wiring member 20 connected to the first electric device 10. In this embodiment, the wiring member 20 is a member for connecting the first electric device 10 to another electric device or the like. The other end of the wiring member 20 may be connected to the second electric device 14 or to another electric device.
[0023] The wiring member 20 includes a transmission member 22 and a connection portion 24 .
[0024] The transmission member 22 is a member in which an insulating part made of resin or the like is formed around at least one linear conductor. The transmission member 22 may be a member in which a plurality of coated electric wires are assembled. The transmission member may have a configuration in which a plurality of linear conductors are embedded in a single insulating part while being insulated from each other.
[0025] A connection portion 24 is provided at one end of the transmission member 22. The connection portion 24 is a member that connects the linear conductor of the transmission member 22 to an electrical component in the first electrical device 10. The connection portion 24 is a member that includes, for example, a terminal and a housing that holds the terminal. When the housing in the connection portion 24 is attached to the case 11 by a fitting structure, a screw structure, or the like, the terminal held by the housing is maintained in a state connected to the electrical component in the first electrical device 10.
[0026] The connection portion 24 is covered with a metal cover 26. The metal cover 26 is a member formed by pressing a metal plate such as copper, a copper alloy, aluminum, an aluminum alloy, or the like. The metal cover 26 is formed on the surface of the housing 11 in a shape that covers the connection portion 24 except for the portion from which the transmission member 22 extends. The metal cover 26 is fixed to the housing 11 by screws or the like. The metal cover 26 can serve to electromagnetically shield the end of the transmission member 22 and the connection portion 24.
[0027] The metal plate-attached conductive sheet 30 is an electromagnetic shielding member that covers at least a part of the wiring member 20. Here, the metal plate-attached conductive sheet 30 includes a conductive sheet 40, a metal plate 50, and a sheet fixing member 60 that is separate from the metal plate 50. The metal plate 50 and the sheet fixing member 60 are fixed to one end of the conductive sheet 40. The metal plate 50 is fixed to the housing 11 of the second electric device 14. The other end of the conductive sheet 40 is fixed to the metal cover 26. Therefore, the conductive sheet 40 is supported at a fixed position so as to span between the metal cover 26 fixed to the first electric device 10 and the housing 15 of the second electric device 14.
[0028] The wiring member 20 extends on the side closer to the housing 11 than the conductive sheet 40 does, in the same direction as the conductive sheet 40 extends from the connection portion 24. Therefore, at least the end of the wiring member 20 on the first electric device 10 side is covered by the conductive sheet 40. In this respect, the metal plate-attached conductive sheet 30 is an electromagnetic shielding member that electromagnetically shields at least a portion of the wiring member 20.
[0029] The following description will focus on the configuration in which one end of the conductive sheet 40 is fixed to the metal plate 50 and the sheet fixing member 60. Fig. 2 is a perspective view showing the metal plate-mounted conductive sheet 30. Fig. 3 is an exploded perspective view of the metal plate-mounted conductive sheet 30. Fig. 4 is a partial cross-sectional view taken along line IV-IV in Fig. 2.
[0030] The conductive sheet 40 is a conductive member formed in a sheet shape. The conductive sheet 40 is formed, for example, by knitting metal wires. The knitting of metal wires includes braids, metal cloth, metal mesh, etc. The conductive sheet 40 is formed in a shape that spreads in a square shape. A metal plate 50 and a sheet fixing member 60 are fixed to one end of the conductive sheet 40. The length of the conductive sheet 40 is, for example, large enough to be disposed across the first electric device 10 and the second electric device 14. The width of the conductive sheet 40 is, for example, large enough to cover the transmission member 22 from the side opposite to the first electric device 10.
[0031] The metal plate 50 and the sheet fixing member 60 are members that keep the conductive sheet 40 in a state in which it covers a portion of the wiring member 20. Here, the metal plate 50 and the sheet fixing member 60, together with the metal cover 26, keep the conductive sheet 40 in a state in which it covers a portion of the wiring member 20.
[0032] The metal plate 50 is a member formed by pressing a metal plate such as copper, a copper alloy, aluminum, an aluminum alloy, etc. The metal plate 50 includes a clamping and fixing main body portion 52 and a fixing piece 56.
[0033] The sandwiching and fixing main body 52 is formed in a square plate shape, more specifically, in a long and narrow rectangular plate shape. The longitudinal dimension of the sandwiching and fixing main body 52 is formed to be equal to or larger than the width of the conductive sheet 40.
[0034] The fixing piece 56 is formed so as to extend outward from the outer periphery of the sandwiching fixing main body 52. Here, the fixing piece 56 is formed so as to extend outward from one long side portion of the sandwiching fixing main body 52. The direction in which the fixing piece 56 extends is a direction avoiding the direction in which the conductive sheet 40 extends from the sandwiching fixing main body 52. Here, the fixing piece 56 extends on the opposite side to the direction in which the conductive sheet 40 extends with respect to the sandwiching fixing main body 52. The fixing piece 56 is a part that is fixed to a fixing target part such as the housing 15. In this embodiment, a screw insertion hole 56h is formed in the fixing piece 56. With the screw S inserted into the screw insertion hole 56h, the screw S is screwed into a thread groove formed in the housing 15 and fastened. As a result, the fixing piece 56 is fixed to the housing 15. The fixing piece 56 may be fixed to the housing 15 by other configurations, for example, welding, riveting, caulking, etc.
[0035] The fixed piece 56 is bent toward one main surface of the sandwiching fixed main body 52 with respect to the sandwiching fixed main body 52. Therefore, the one main surface and the other main surface of the metal plate 50 can be distinguished based on the direction in which the sandwiching fixed main body 52 is bent. However, the fixed piece 56 may extend from the sandwiching fixed main body 52 without being bent.
[0036] The sheet fixing member 60 is a member formed separately from the metal plate 50. With one end portion, which is a part of the conductive sheet 40, sandwiched between the metal plate 50 and the sheet fixing member 60, the sheet fixing member 60 is overlapped and fixed to the metal plate 50.
[0037] The shape of the sheet fixing member 60 is not particularly limited as long as it is a member that can be superimposed on the metal plate 50. For example, the sheet fixing member 60 may be plate-shaped or rectangular parallelepiped-shaped. The material of the sheet fixing member 60 is also not particularly limited. The sheet fixing member 60 may be a metal such as copper, a copper alloy, aluminum, an aluminum alloy, or a resin.
[0038] In this embodiment, the sheet fixing member 60 is made of a metal plate such as copper, copper alloy, aluminum, or aluminum alloy. Here, the sheet fixing member 60 is formed in a square plate shape, more specifically, in a long and narrow rectangular plate shape. The longitudinal dimension of the sheet fixing member 60 is formed to be the same as or larger than the width of the conductive sheet 40. The sheet fixing member 60 may also be integrally formed with a fixing piece or the like for fixing to a fixing target portion.
[0039] In this embodiment, the longitudinal dimension of the sheet fixing member 60 is smaller than the longitudinal dimension of the sandwiching fixation main body 52, and the short side dimension of the sheet fixing member 60 is smaller than the short side dimension of the sandwiching fixation main body 52.
[0040] A positioning recess 54 is formed on one of the metal plate 50 and the sheet fixing member 60, and a positioning protrusion 62 is formed on the other. Here, an example is shown in which the positioning recess 54 is formed on the metal plate 50, and the positioning protrusion 62 is formed on the sheet fixing member 60.
[0041] More specifically, a positioning recess 54 is formed in a portion of the sandwiching and fixing main body 52 of the metal plate 50, closer to the fixing piece 56. There may be one positioning recess 54 or more. In this embodiment, a plurality of positioning recesses 54 (here, two) are formed at intervals in the longitudinal direction of the sandwiching and fixing main body 52.
[0042] The positioning recess 54 may be a recess that can regulate the position of the positioning protrusion 62 in at least one direction by contacting the positioning recess 54. Here, an example in which the positioning recess 54 is a positioning hole portion whose entire periphery is surrounded by an edge is described. The positioning recess 54 may not be a positioning hole portion, but may be a recess that is partially surrounded by an edge and the rest is open. A modified example in that case will be described later with reference to FIG. 5 or FIG. 6. In addition, the positioning recess 54 as the positioning hole portion in this embodiment is a hole that penetrates the metal plate 50. However, the positioning recess 54 as the positioning hole portion does not need to penetrate the metal plate 50, and may be a bottomed hole. In addition, the opening shape of the positioning recess 54 is not particularly limited. In this embodiment, the positioning recess 54 is formed in a rectangular hole shape. The opening shape of the positioning recess 54 may be a polygonal shape such as a circle, an ellipse, a slit, or a triangle.
[0043] The positioning protrusion 62 is formed on one long side of the sheet fixing member 60. There may be one positioning protrusion 62 or multiple positioning protrusions 62. In this embodiment, multiple (here, two) positioning protrusions 62 are formed at intervals along one long side of the sheet fixing member 60 in correspondence with the multiple positioning recesses 54. The intervals between the multiple positioning recesses 54 and the intervals between the multiple positioning protrusions 62 are the same.
[0044] The positioning protrusion 62 is formed by extending a portion of one long side of the sheet fixing member 60 in a band shape and bending this extended portion toward one main surface of the sheet fixing member 60. More specifically, a partial recess 61 is formed in one long side of the sheet fixing member 60. A band-shaped portion extends from the back of this recess 61. The positioning protrusion 62 is formed by bending this band-shaped portion toward one main surface of the sheet fixing member 60. The positioning protrusion 62 protrudes beyond one main surface of the sheet fixing member 60.
[0045] The width dimension of the positioning protrusion 62 may be smaller than the width dimension of the recess 61. Furthermore, the inward surface 62f of the positioning protrusion 62 may be located outside the inner portion 61a of the recess 61. In this case, when the sheet fixing member 60 is viewed from the opposite side to the metal plate 50, a gap 61s is formed outside the positioning protrusion 62.
[0046] Then, with the sheet fixing member 60 placed on the metal plate 50, the positioning protrusion 62 is fitted into the positioning recess 54 (see arrow P2 in FIG. 3). At this time, the positioning protrusion 62 is positioned by contacting one of the peripheral edges of the positioning recess 54. Thus, the sheet fixing member 60 is positioned relative to the metal plate 50. At this time, the multiple positioning protrusions 62 are positioned in the multiple positioning recesses 54, thereby restricting rotation of the sheet fixing member 60 relative to the metal plate 50.
[0047] With the sheet fixing member 60 overlapped on the metal plate 50, one end of the conductive sheet 40 is sandwiched between the metal plate 50 and the sheet fixing member 60. More specifically, one end of the conductive sheet 40 is sandwiched between the metal plate 50 and the sheet fixing member 60 with the width direction of the one end of the conductive sheet 40 aligned with the longitudinal direction of the sandwiching fixing main body 52 of the metal plate 50 and the sheet fixing member 60 (see arrow P1 in FIG. 3).
[0048] At this time, the conductive sheet 40 may be in contact with the positioning protrusions 62. Here, the edge of one end of the conductive sheet 40 is in contact with the inner portions of the multiple positioning protrusions 62. Therefore, the conductive sheet 40 is sandwiched at a fixed position relative to the metal plate 50 and the sheet fixing member 60.
[0049] A window portion that allows the edge of the conductive sheet 40 in contact with the positioning protrusion 62 to be visible is formed at a position on the other side of the metal plate 50 and the sheet fixing member 60 (i.e., the side on which the positioning protrusion 62 is formed) adjacent to the positioning protrusion 62. Here, the gap 61s is formed as the window portion on the outside of the positioning protrusion 62. By checking whether the edge of one end of the conductive sheet 40 is visible through the gap 61s, it can be confirmed whether the edge of one end of the conductive sheet 40 is in a predetermined position in contact with the inner portions of the multiple positioning protrusions 62.
[0050] The metal plate 50 and the sheet fixing member 60 are fixed in an overlapping state. In this embodiment, the metal plate 50 and the sheet fixing member 60 are fixed by a mechanical clinch portion 70. Here, mechanical clinching refers to a mechanical fitting structure between a convex portion formed on one of the two metal plates and a concave portion formed on the other metal plate, which keeps the two metal plates in an overlapping state. The mechanical clinch portion 70 is a fitting structure portion between such a convex portion 72 and a concave portion 74.
[0051] 2 and 4, a convex portion 72 is formed on the sheet fixing member 60, and a concave portion 74 is formed on the metal plate 50. The convex portion 72 is fitted into the concave portion 74, and the sheet fixing member 60 is maintained in a state where it is superimposed on the metal plate 50. The convex-concave relationship between the sheet fixing member 60 and the metal plate 50 may be reversed.
[0052] The mechanical clinch portion 70 as described above can be formed, for example, by pressing the metal plate 50 and the sheet fixing member 60 in a superimposed state to partially plastically deform the metal plate 50 and the sheet fixing member 60. Also, during or after the press working, the base end portion of the protrusion 72 and the opening side portion of the recess 74 may be plastically deformed so as to be narrowed. In this case, the tip side portion of the protrusion 72 is wider than the base end side portion, and the back side portion of the recess 74 is wider than the opening side portion. This makes it difficult for the protrusion 72 to come out of the recess 74.
[0053] It is sufficient that the mechanical clinch portion 70 keeps the metal plate 50 and the sheet fixing member 60 in an overlapping state. The position and number of the mechanical clinch portions 70 in the overlapping portion of the metal plate 50 and the sheet fixing member 60 are arbitrary. For example, one mechanical clinch portion may be formed in the center of the sheet fixing member 60 in the longitudinal direction. Also, for example, a pair of mechanical clinch portions may be formed at both ends of the sheet fixing member 60 in the longitudinal direction. In this embodiment, an example is shown in which a plurality of (here, five) mechanical clinch portions 70 are formed at intervals along the longitudinal direction of the sheet fixing member 60.
[0054] In this embodiment, the mechanical clinch portion 70 exists in the region where the metal plate 50 and the sheet fixing member 60 sandwich a part of the conductive sheet 40. Therefore, in the mechanical clinch portion 70, the conductive sheet 40 is sandwiched between the convex portion 72 and the concave portion 74 in the mechanical clinch portion 70. In addition, the conductive sheet 40 is tightly sandwiched between the metal plate 50 and the sheet fixing member 60 around the mechanical clinch portion 70. The position of the mechanical clinch portion 70 relative to the arrangement region of the conductive sheet 40 is arbitrary. For example, some or all of the mechanical clinch portion may exist outside the region where the metal plate 50 and the sheet fixing member 60 sandwich a part of the conductive sheet 40.
[0055] The metal plate 50 and the sheet fixing member 60 may be fixed in an overlapping state by a configuration other than the mechanical clinch portion 70. For example, the metal plate 50 and the sheet fixing member 60 may be fixed in an overlapping state by welding, crimping, soldering, screwing, or the like.
[0056] According to the metal plate-attached conductive sheet 30 configured in this manner, the sheet fixing member 60 is superimposed on the metal plate 50 in a state in which the positioning protrusions 62 are in contact with the edges of the positioning recesses 54 and positioned. Therefore, the metal plate 50 and the sheet fixing member 60 that sandwich the conductive sheet 40 are easily positioned. Then, one end of the conductive sheet 40 is sandwiched and fixed between the accurately positioned metal plate 50 and the sheet fixing member 60, so that a metal plate-attached conductive sheet 30 with stable quality can be manufactured.
[0057] Furthermore, with the conductive sheet 40 in contact with the positioning protrusions 62, the conductive sheet 40 is sandwiched between the metal plate 50 and the sheet fixing member 60. Therefore, the amount of sandwiching of the conductive sheet 40 by the metal plate 50 and the sheet fixing member 60 is stable, and the fixed state of the conductive sheet 40 to the metal plate 50 and the sheet fixing member 60 is stable.
[0058] Moreover, the positioning recess 54 is formed as a positioning hole portion whose entire periphery is surrounded by an edge. Therefore, the positioning protrusion 62 is positioned in all directions within the positioning recess 54. This allows the sheet fixing member 60 to be positioned with respect to the metal plate 50 more reliably.
[0059] In addition, the metal plate 50 is formed with a positioning recess 54, and the sheet fixing member 60 is formed with a positioning protrusion 62. Here, the metal plate 50 is formed with a shape that performs other functions, such as the fixing piece 56, and is considered to have a shape that allows easy identification of the front and back. In contrast, the sheet fixing member 60 is considered to have a simple shape because it is a member solely for fixing the conductive sheet 40. Here, the sheet fixing member 60 is a long and narrow rectangular plate, so it can be observed as having the same shape from either side. However, when the sheet fixing member 60 is observed in detail, the front and back may be distinguished depending on the presence or absence of surface processing on the two sides, the difference in roughness, the presence or absence of burrs on the edges due to press processing, etc. Therefore, if the sheet fixing member 60 is formed with the positioning protrusion 62, the front and back of the sheet fixing member 60 can be identified using the protruding direction of the positioning protrusion 62 as a clue.
[0060] For example, it is possible to make the positioning protrusions 62 protrude on the side opposite to the surface on which burrs are generated by the press working. This makes it difficult for the burrs to come into contact with the conductive sheet 40 when the sheet fixing member 60 is superimposed on the metal plate 50.
[0061] In addition, the metal plate 50 and the sheet fixing member 60 are fixed in an overlapping state by the mechanical clinch portion 70. Therefore, the metal plate 50 and the sheet fixing member 60 can be easily fixed by press processing or the like. In particular, the fixing workability is good compared to a configuration in which fixing is performed using a separate fixing part such as riveting or screw fixing.
[0062] [Variations] 5 is a perspective view showing a metal plate-mounted conductive sheet 130 according to a first modified example. The metal plate-mounted conductive sheet 130 includes a conductive sheet 40, a metal plate 150, and a sheet fixing member 160.
[0063] The metal plate 150 is formed in a long and narrow rectangular shape. Positioning recesses 154 are formed in the middle of the edges on both sides of the metal plate 150 in the extension direction. The positioning recesses 154 are formed in a shape that is partially recessed into a square shape from the edge of the metal plate 150. The positioning recesses 154 are surrounded by edges on three sides and are formed in a shape that opens outward on the remaining side. Such positioning recesses 154 are an example of a positioning notch portion that is partially surrounded by edges. The metal plate 150 may be integrally formed with a fixing piece for fixing to a fixing target portion.
[0064] The sheet fixing member 160 is formed in a long and narrow plate shape by a metal plate. Positioning protrusions 162 are formed at the middle of the extending direction of the edges on both sides of the sheet fixing member 160. The positioning protrusions 162 protrude from the edges of the sheet fixing member 160 toward one side of the sheet fixing member 160. Here, the positioning protrusions 162 are formed by extending a part of the edges on both sides of the sheet fixing member 160 into a band shape and bending the band-shaped parts toward one side of the sheet fixing member 160. Then, the sheet fixing member 160 is overlapped on the metal plate 150 with the positioning protrusions 162 in contact with the three edges of the positioning recess 154. Therefore, the sheet fixing member 160 is accurately positioned with respect to the metal plate 150. In particular, the two positioning protrusions 162 are fitted into the positioning recess 154, so that the metal plate 150 and the sheet fixing member 160 are positioned relative to each other in the short side direction of the metal plate 150. Furthermore, at both ends of the metal plate 150 in the longitudinal direction, the positioning protrusions 162 fit into the positioning recesses 154, so that the metal plate 150 and the sheet fixing member 160 are positioned relative to each other also in the long side direction of the metal plate 150. In this state, the metal plate 150 and the sheet fixing member 160 are fixed by the mechanical clinch portion 170 corresponding to the mechanical clinch portion 70.
[0065] An end of the conductive sheet 40 is sandwiched and fixed between the metal plate 150 and the sheet fixing member 160. Among the edges of the long sides of the metal plate 150 and the sheet fixing member 160, confirmation windows 150h, 160h are formed on the edge opposite to the side where the conductive sheet 40 extends. Here, a plurality of confirmation windows 150h, 160h are formed at intervals in the direction along each edge. The confirmation windows 150h, 160h are formed in a shape that is recessed inwardly in a rectangular shape from a part of the edge of the long side of the metal plate 150 and the sheet fixing member 160. One end of the conductive sheet 40 is sandwiched between the metal plate 150 and the sheet fixing member 160 so that the edge of one end of the conductive sheet 40 reaches the confirmation windows 150h, 160h. By checking the presence or absence of an edge of one end of the conductive sheet 40 through the checking windows 150h and 160h, it is possible to check the state in which the conductive sheet 40 is sandwiched between the metal plate 150 and the sheet fixing member 160.
[0066] As in this modified example, the positioning recess 154 may be a positioning notch portion that is partially surrounded by an edge and the other portion is open. In this case, since a portion of the periphery of the positioning recess 154 is open, it is easy to relatively move the positioning protrusion 162 toward the positioning recess 154 while checking the positional relationship between the positioning protrusion 162 and the positioning recess 154, and the positioning protrusion 162 can be easily positioned by the positioning recess 154.
[0067] 6 is a perspective view showing a metal plate-mounted conductive sheet 230 according to a second modified example. The metal plate-mounted conductive sheet 230 includes a conductive sheet 40, a metal plate 250, and a sheet fixing member 260.
[0068] The metal plate 250 is formed in a long and narrow rectangular shape. Positioning protrusions 254 are formed inside both side edges of the metal plate 250. The positioning protrusions 254 are formed in a shape that protrudes from one side of the metal plate 250. Here, the positioning protrusions 254 are formed by forming linear slits inside both side edges of the metal plate 250 and bending and raising the outer parts of the metal plate 250 where the slits are formed.
[0069] A protrusion 256 is also formed on the inside of the edge of one of the long sides of the metal plate 250. The protrusion 256 is formed in a shape that protrudes from one surface of the metal plate 250. Here, the protrusion 256 is formed by forming a linear slit on the inside of the edge of the long side of the metal plate 250, and bending and raising the portion outside the portion where the slit is formed. Here, two protrusions 256 are formed with a gap between them on the inside of the edge of one of the long sides of the metal plate 250.
[0070] The sheet fixing member 260 is formed into a long and narrow plate shape using a metal plate. The length dimension of the sheet fixing member 260 in the long side direction is smaller than the length dimension of the metal plate 250 in the long side direction, and the length dimension of the sheet fixing member 260 in the short side direction is also smaller than the length dimension of the metal plate 250 in the short side direction.
[0071] A positioning recess 262 is formed at the middle of the edges on both sides of the sheet fixing member 260 in the extension direction. The positioning recess 262 is formed in a shape that is partially recessed from the edge into a square shape. The positioning recess 262 is an example of a positioning notch portion that is partially surrounded by an edge and the other side is open. A recess 264 is formed on the edge of one long side of the sheet fixing member 260 at a position corresponding to the protrusion 256. The recess 264 is formed in a shape that is partially recessed from the edge into a square shape.
[0072] Then, with the positioning protrusions 254 in contact with three edges of the positioning recess 262, the sheet fixing member 260 is overlapped on the metal plate 250. Therefore, similar to the first modified example 1, the sheet fixing member 260 is accurately positioned with respect to the metal plate 250. In this state, the metal plate 250 and the sheet fixing member 260 are fixed by the mechanical clinch portion 270 corresponding to the mechanical clinch portion 70.
[0073] An end of the conductive sheet 40 is sandwiched and fixed between the metal plate 250 and the sheet fixing member 260. As described above, when the metal plate 250 and the sheet fixing member 260 are overlapped, the convex portion 256 is disposed in the recess 264 at a position away from the back of the recess 264. One end of the conductive sheet 40 is sandwiched between the metal plate 250 and the sheet fixing member 260 so that the edge of one end of the conductive sheet 40 contacts the convex portion 256. Therefore, the conductive sheet 40 can be sandwiched between the metal plate 250 and the sheet fixing member 260 by using the convex portion 256 as a portion for positioning the conductive sheet 40, and thus the sandwiched state of the conductive sheet 40 by the metal plate 250 and the sheet fixing member 260 can be stabilized. Moreover, when the edge of one end of the conductive sheet 40 contacts the convex portion 256, the edge of one end of the conductive sheet 40 can be confirmed between the back of the recess 264 and the convex portion 256. Therefore, by checking whether or not there is an edge of one end of conductive sheet 40 between the back of recess 264 and protrusion 256, it is possible to check whether or not the end of conductive sheet 40 is clamped in a specified position.
[0074] Both side portions of the protrusion 256 are in contact with both side edges of the recess 264, and in this respect, the protrusion 256 is an example of a positioning protrusion, and the recess 264 may be understood as an example of a positioning recess.
[0075] In this second modified example as well, a portion of the periphery of the positioning recess 262 is open, so that it is easy to move the positioning protrusion 254 relatively toward the positioning recess 262 while checking the positional relationship between the positioning protrusion 254 and the positioning recess 262, and the positioning protrusion 254 can be easily positioned by the positioning recess 262.
[0076] The attachment structure between the other end of the conductive sheet 40 and the metal cover 26 may be the same as the configuration described in the above embodiment or each modified example, or may be another configuration. As another configuration, for example, it is conceivable that the other end of the conductive sheet 40 is fixed to the metal cover 26 by soldering, welding, crimping, or the like.
[0077] The metal plate-attached conductive sheets 30, 130, 230 may be electromagnetic shielding members or other members. As the other members, for example, in the case where the bracket 310 is fixed to the housing 11 of the first electric device 10 and the bracket 320 is fixed to the housing 15 of the second electric device 14 in Fig. 1, each end of the conductive sheet 340 may be fixed to the brackets 310, 320. In this case, the metal plate-attached conductive sheet 330 is assumed to be a member used as a current path for earthing that electrically connects the housing 11, which is an example of an earth part, and the housing 15, which is an example of an earth part.
[0078] The metal plates 50, 150, 250 may or may not have a fixing portion such as the fixing piece 56. The metal plates 50, 150, 250 may have a portion other than the fixing portion, for example, a portion that serves as an electromagnetic shield case.
[0079] The configurations described in the above embodiment and modifications can be combined as appropriate as long as they are not mutually inconsistent. [Explanation of symbols]
[0080] 10. First Electrical Equipment 11, 15 Case 14 Second Electrical Equipment 20 Wiring materials 22 Transmission components 24 Connection 26 Metal cover 30, 130, 230, 330 Conductive sheet with metal plate 40, 340 Conductive sheet 50, 150, 250 metal plate 52 Clamping and fixing main body part 54 Positioning recess (positioning hole) 56 Fixed piece 56h Screw insertion hole 60, 160, 260 Seat fixing parts 61 Dent 61a The back part of the recess 61s Gap 62,162,254 Positioning protrusion 62f Inward facing surface 70, 170, 270 Mechanical Clinch Section 72 Convex 74 Recess 150h, 160h Check window 154, 262 Positioning recess (positioning notch) 256 Convex 264 Recess 310, 320 bracket S Screw
Claims
1. A conductive sheet; A metal plate; A sheet fixing member that is separate from the metal plate; Equipped with The sheet fixing member is overlapped and fixed to the metal plate in a state where a part of the conductive sheet is sandwiched between the metal plate and the sheet fixing member, a positioning recess is formed on one of the metal plate and the sheet fixing member, and a positioning protrusion is formed on the other of the metal plate and the sheet fixing member, the positioning protrusion being positioned by contacting an edge of the positioning recess; The conductive sheet is a metal plate-attached conductive sheet formed by braiding metal wires.
2. The metal plate-attached conductive sheet according to claim 1, The conductive sheet with a metal plate is in contact with the positioning protrusion.
3. The metal plate-attached conductive sheet according to claim 2, A metal plate-attached conductive sheet, wherein the other of the metal plate and the sheet fixing member has a window portion formed at a position adjacent to the positioning protrusion, which enables the edge of the conductive sheet in contact with the positioning protrusion to be visible.
4. The metal plate-attached conductive sheet according to any one of claims 1 to 3, The positioning recess includes a positioning hole portion whose entire periphery is surrounded by a rim, The positioning protrusion is fitted into the positioning hole.
5. The metal plate-attached conductive sheet according to any one of claims 1 to 4, The positioning recess includes a positioning notch portion that is partially surrounded by an edge, The positioning protrusion is in contact with the edge of the positioning notch.
6. The metal plate-attached conductive sheet according to any one of claims 1 to 5, The metal plate-attached conductive sheet has the positioning recess formed in the metal plate and the positioning protrusion formed in the sheet fixing member.
7. The metal plate-attached conductive sheet according to any one of claims 1 to 6, the sheet fixing member is a plate formed of metal, The metal plate and the sheet fixing member are fixed to each other by a mechanical clinch portion.
Citation Information
Patent Citations
Conductive sheet with metal fitting
JP2015057758A
Welding method for laminated metal foil
JP2019005768A
Conductive sheet with metal plate
JP2021174827A
Electromagnetic shield member and wiring device with the same
JP2017022264A