Shielded cable
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-02-03
- Publication Date
- 2026-08-14
AI Technical Summary
【0007】 本開示によれば、軽量化を図ることができる。
Smart Images

Figure 2026131286000001_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a shielded cable.
Background Art
[0002] Patent Document 1 discloses a very fine coaxial cable assembly having a plurality of very fine coaxial cables arranged in parallel and a ground bar. The ground bar is attached to an outer conductor of the very fine coaxial cable with a part of the outer covering removed and exposed so as to sandwich it from above and below. The plurality of outer conductors are held at the same potential via the ground bar.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In the above coaxial cable assembly, a region not sandwiched by the ground bar in the very fine coaxial cable is surrounded by the outer covering. Therefore, there is a problem that the region not sandwiched by the ground bar in the coaxial cable assembly becomes heavier by the weight of the outer covering.
[0005] The shielded cable of the present disclosure has been completed based on the above circumstances and aims to achieve weight reduction.
Means for Solving the Problems
[0006] The shielded cable of the present disclosure includes a plurality of shielded electric wires arranged in parallel, and a ground bar extending in an elongated shape along the parallel direction of the shielded electric wires. The shielded wire comprises a conductor and a shielding member that surrounds the conductor. The outermost layer of the shielded wire is composed solely of the shielding member. The ground bar is attached to multiple shield wires in a manner that allows electrical communication with multiple shield members. [Effects of the Invention]
[0007] According to this disclosure, weight reduction can be achieved. [Brief explanation of the drawing]
[0008] [Figure 1] Figure 1 is a perspective view of the shielded cable of Example 1. [Figure 2] Figure 2 is an exploded perspective view of the shielded cable of Example 1. [Figure 3] Figure 3 is a front view of the shielded cable of Example 1. [Figure 4] Figure 4 is a magnified view of a portion of Figure 3. [Figure 5] Figure 5 is a rear view showing the shielded cable of Embodiment 1, in which multiple shield wires are positioned by an alignment member. [Figure 6] Figure 6 is a perspective view of the shielded cable of Example 2. [Figure 7] Figure 7 is an exploded perspective view of the shielded cable of Example 2. [Figure 8] Figure 8 is a front view of the shielded cable of Example 2. [Figure 9] Figure 9 is a magnified view of a portion of Figure 8. [Figure 10] Figure 10 is a perspective view of the shielded cable of Example 3. [Figure 11] Figure 11 is an exploded perspective view of the shielded cable of Example 3. [Figure 12] Figure 12 is a front view of the shielded cable of Example 3. [Figure 13] Figure 13 is a magnified view of a portion of Figure 12.
Mode for Carrying Out the Invention
[0009] [Description of Embodiments of the Present Disclosure] First, embodiments of the present disclosure will be listed and described. Combinations of the following multiple embodiments arbitrarily within a non - conflicting range are also included in the mode for carrying out the invention.
[0010] The shield cable of the present disclosure (1) includes a plurality of shielded electric wires arranged in parallel and a ground bar extending in an elongated shape along the parallel direction of the shielded electric wires. The shielded electric wire has a conductor and a shield member surrounding the conductor. The outermost layer of the shielded electric wire is composed only of the shield member, and the ground bar is attached to the plurality of shielded electric wires in a state where it can be electrically connected to the plurality of shield members. According to the configuration of the present disclosure, since the shielded electric wire does not have a sheath surrounding the shield member, weight reduction can be achieved for the plurality of shielded electric wires arranged in parallel.
[0011] (2) In (1), it is preferable that the shield member is composed only of a metal foil. According to this configuration, compared with the case of using a braided wire as the shield member, weight reduction and reduction of component cost and manufacturing cost can be achieved.
[0012] (3) In (1) or (2), the ground bar includes a pair of bar members that sandwich the plurality of shielded electric wires in a direction intersecting the parallel direction, and it is preferable that at least one of the pair of bar members is formed with a plurality of groove portions for individually accommodating the plurality of shielded electric wires. According to this configuration, by individually accommodating the plurality of shielded electric wires in the plurality of groove portions, the shielded electric wires can be positioned in the parallel direction. (3)
[0013] (4) In (3), when the shielded wire is accommodated in the groove portion, it is preferable that a filling space is formed between the inner peripheral surface of the groove portion and the outer peripheral surface of the shielded wire. According to this configuration, by filling a fixing material such as solder in the filling space, the fixing force between the ground bar and the shield member can be increased.
[0014] (5) In (1) or (2), it is preferable that the region where the ground bar is not attached among the plurality of shielded wires is held in a positional relationship separated in the parallel direction by an alignment member. According to this configuration, adjacent shielded wires can be positioned, so that a decrease in communication performance in a transmission circuit constituted by the shielded wires can be suppressed.
[0015] (6) In (5), it is preferable that the alignment member has a sheet shape that expands in the parallel direction. According to this configuration, the height of the shielded wire can be reduced.
[0016] (7) In (6), it is preferable that a pair of the alignment members are arranged so as to sandwich the shielded wire in a direction intersecting the parallel direction. According to this configuration, the shield member can be protected by the pair of alignment members.
[0017] [Details of Embodiments of the Present Disclosure] [Example 1] The shielded cable A of Example 1 embodying the present disclosure will be described with reference to FIGS. 1 to 5. The present invention is not limited to these examples, but is shown by the claims, and includes all modifications within the meaning and scope equivalent to the claims. The shielded cable A of Example 1 includes a plurality of shielded wires 10, one ground bar 20, and a pair of alignment members 26.
[0018] The shielded wire 10 comprises a conductor 11, a circular cross-section insulator 12 coaxially surrounding the conductor 11, and a cylindrical shielding member 13 coaxially surrounding the insulator 12. The shielding member 13 is made of metal foil. The material of the metal foil is preferably copper, copper alloy, aluminum, aluminum alloy, etc. The thickness of the metal foil is preferably 5 to 100 μm. The metal foil is in the form of a flexible rectangular sheet and is constructed by winding it around the outer surface of the insulator 12 in the circumferential direction. The winding direction of the metal foil around the insulator 12 can be either forward or reverse. The metal foil is fixed to the outer surface of the insulator 12 in a tight, gapless manner. An adhesive applied to the metal foil can be used as a means of fixing. It is preferable that the circumferential edges of the metal foil overlap. The overlapping portions of the edges of the metal foil are also tightly adhered to each other by the adhesive.
[0019] The shielded wire 10 does not have a sheath surrounding the shield member 13. In other words, the outermost layer of the shielded wire 10 is composed solely of the shield member 13. The outer diameter of the shielded wire 10 (shield member 13) may be 1 mm, 1.5 mm, 2.0 mm, or thicker than 2.0 mm. Multiple shielded wires 10 are arranged in parallel in the left-right direction at a constant or predetermined pitch, with their axes facing the front-back direction.
[0020] The ground bar 20 is composed of a pair of vertically symmetrical bar members 21. Both bar members 21 are made of a conductive material such as metal. Specific examples of materials for the bar members 21 include copper, copper alloys, aluminum, and aluminum alloys. The bar members 21 are elongated in the left-right direction, that is, in the direction in which multiple shield wires 10 are arranged in parallel. The lower bar member 21 has multiple grooves 22 formed on its upper surface, which are recessed. The multiple grooves 22 are arranged at a constant or predetermined pitch in the left-right direction. In a front view of the ground bar 20, each groove 22 forms an arc shape. The radius of curvature of the arc of the groove 22 is greater than the radius of the outer surface of the shield member 13. The depth of the groove 22, that is, the depth of the groove 22 from the upper surface of the bar member 21, is set to be equal to or slightly greater than half the outer diameter of the shield wire 10. The upper bar member 21 also has multiple grooves 22 formed on it. The groove 22 of the upper bar member 21 is vertically symmetrical to the lower groove 22.
[0021] When assembling the shielded wire 10 and the ground bar 20, the pair of bar members 21 are separated into upper and lower halves, and solder paste 24 is applied to the inner surface of each groove 22. Next, the shielded wire 10 is placed in the groove 22 of the lower bar member 21. After this, the upper bar member 21 is placed on top of the lower bar member 21, and the shielded wire 10 is sandwiched between the grooves 22 of both the upper and lower bar members 21. The upper and lower grooves 22 form connection holes 23 that penetrate the ground bar 20 in the front-to-back direction. The shielded wire 10 is then passed through each connection hole 23. Without applying solder paste 24, a filling space 25 is formed between the inner surface of the connection hole 23 and the outer surface of the shielded wire 10 (shield member 13).
[0022] In this state, the solder paste 24 is heated. The heated solder paste 24 becomes molten and fills the filling space 25 between the inner surface of the connection hole 23 (groove 22) and the outer surface of the shield member 13, fixing to the inner surface of the connection hole 23 and the outer surface of the shield wire 10. The fixing force of the solder paste 24 holds the ground bar 20 and the shield wire 10 (shield member 13) in the assembled state. The shield wire 10 and the ground bar 20 (bar member 21) are connected in a state where electrical conductivity is possible via the solder paste 24.
[0023] Unlike the shielded wire 10 of this embodiment 1, in a shielded wire whose outermost layer is made of braided wire, the braided wire has the characteristic of being easily deformable. Therefore, even if the surface of the ground bar facing the shield member (braided wire) is flat, the shield member (braided wire) and the ground bar can be in contact over a relatively wide area, or they can be in close proximity and facing each other over a relatively wide area. In contrast, in the shielded wire 10 of this embodiment 1, whose outermost layer is made of metal foil, the metal foil is attached in close contact with the outer surface of the circular cross-section insulator 12, so the cross-sectional shape of the outer surface of the shield member 13 (metal foil) is also circular. Therefore, when the surface of the ground bar facing the shield member 13 (metal foil) is flat, the contact area between the shield member 13 (metal foil) and the ground bar 20, and the area in which the shield member 13 (metal foil) and the ground bar 20 are in close proximity and facing each other, are smaller than in the case of braided wire.
[0024] As a countermeasure, in this embodiment 1, a groove 22 for accommodating the shielded wire 10 is provided on the surface of the ground bar 20 (bar member 21) facing the shield member 13, and the shielded wire 10 is surrounded all around by the ground bar 20 (a pair of bar members 21). This configuration ensures a large area where the shield member 13 and the ground bar 20 face each other in close proximity, that is, an area where the shield member 13 and the ground bar 20 are electrically connected via solder paste 24. Therefore, with the shielded cable A of this embodiment 1, communication performance is stable in all shielded wires 10, and variations in communication performance between shielded wires 10 can be suppressed.
[0025] After assembling the shield wires 10 and the ground bar 20, a pair of upper and lower alignment members 26 are attached to a wide area of the multiple shield wires 10 that is not connected to the ground bar 20. The alignment members 26 are thin sheets. The material of the alignment members 26 may be an insulating synthetic resin or a conductive material. The alignment members 26 may be flexible or highly rigid. The pair of upper and lower alignment members 26 and the shield wires 10 (shield members 13) are fixed together with an adhesive (not shown). By being fixed to the alignment members 26, the multiple shield wires 10 are positioned in a parallel direction with a predetermined pitch between them. Furthermore, since the multiple shield wires 10 are covered from both the upper and lower sides by the pair of alignment members 26, they are less susceptible to interference from foreign objects.
[0026] The shield cable A of this embodiment 1 comprises a plurality of shield wires 10 arranged in parallel, and a ground bar 20 that extends in a long, slender shape along the parallel direction of the shield wires 10. The shield wire 10 has a conductor 11 and a shield member 13 that surrounds the conductor 11. The outermost layer of the shield wire 10 is composed only of the shield member 13. The ground bar 20 is attached to the plurality of shield wires 10 in a manner that allows electrical communication with the plurality of shield members 13. With this configuration, since the shield wire 10 does not have a sheath surrounding the shield member 13, weight reduction can be achieved with respect to the plurality of shield wires 10 arranged in parallel.
[0027] The shield member 13 is made solely of metal foil. This configuration allows for weight reduction and a reduction in component and manufacturing costs compared to the case where braided wire is used as the shield member 13.
[0028] The ground bar 20 includes a pair of bar members 21 that sandwich multiple shield wires 10 in a parallel direction (left-right direction) and in a vertical direction that intersects with it. Both (at least one) of the pair of bar members 21 have multiple grooves 22 formed therein for individually accommodating multiple shield wires 10. With this configuration, the shield wires 10 can be positioned in the parallel direction by individually accommodating multiple shield wires 10 in the multiple grooves 22.
[0029] In the state in which the shield wire 10 is housed in the groove 22, it is preferable that a filling space 25 is formed between the inner circumferential surface of the groove 22 and the outer circumferential surface of the shield wire 10. With this configuration, the fixing force between the ground bar 20 and the shield member 13 can be increased by filling the filling space 25 with a fixing material such as solder paste 24.
[0030] In the region of the multiple shield wires 10 to which the ground bar 20 is not attached, the alignment members 26 are held in a predetermined positional relationship in the parallel direction. With this configuration, the conductors 11 of adjacent shield wires 10 can be positioned in a positional relationship where they are in contact with each other or in a positional relationship where they are separated from each other, thereby suppressing a decrease in communication performance in the transmission circuit composed of the shield wires 10. The alignment members 26 are in the form of a sheet that unfolds in the parallel direction of the shield wires 10. With this configuration, the height of the shield wires 10 can be reduced. The pair of alignment members 26 are arranged to sandwich the multiple shield wires 10 in the vertical direction that intersects the parallel direction. With this configuration, the pair of alignment members 26 can protect the shield member 13.
[0031] [Example 2] A shielded cable B of Embodiment 2, which embodies the present disclosure, will be described with reference to Figures 6 to 9. The shielded cable B of Embodiment 2 has a different configuration of the ground bar 30 than that of Embodiment 1. The other components are the same as those of Embodiment 1, so the same components are denoted by the same reference numerals, and the explanation of the structure, operation, and effect is omitted. The shielded cable B of Embodiment 2 comprises a plurality of shield wires 10, a ground bar 30, and a pair of sheet-like alignment members 26 (not shown). The shield wires 10 and the alignment members 26 are the same components as in Embodiment 1.
[0032] The ground bar 30 is constructed by assembling an upper bar member 31 and a lower bar member 32. The upper bar member 31 has a constant thickness and is a long, slender, flat plate extending in the parallel direction of the shield wires 10. Both the upper bar member 31 and the lower bar member 32 are made of a conductive material such as metal. Specific examples of materials for the upper bar member 31 and the lower bar member 32 include copper, copper alloys, aluminum, and aluminum alloys.
[0033] A fitting groove 33 is formed on the upper surface of the lower bar member 32, extending in a long, narrow shape along the parallel direction of the shield wire 10. The fitting groove 33 is open only on the upper surface of the lower bar member 32. The upper bar member 31 is fitted into the fitting groove 33. The lower bar member 32 has multiple groove portions 34 formed in a shape where the bottom surface of the fitting groove 33 is recessed. The multiple groove portions 34 are arranged at a constant pitch or a predetermined pitch in the left-right direction. In a front view of the ground bar 30 viewed from the front, each groove portion 34 forms a U shape. The bottom surface of the groove portion 34 is a semi-circular arc surface. The radius of curvature of the semi-circular arc of the bottom surface is slightly larger than the radius of the outer surface of the shield member 13. The left and right inner surfaces of the groove portion 34 are planes that extend in the vertical direction and are parallel to each other. The depth dimension of the groove portion 34 from the bottom surface of the fitting groove 33 is slightly larger than the outer diameter of the shield wire 10.
[0034] When assembling the shielded wire 10 and the ground bar 30, the upper bar member 31 is removed from the lower bar member 32, and solder paste 24 is applied to the inner surface of each groove 34. Next, the shielded wire 10 is placed in the groove 34 of the lower bar member 32. After this, the upper bar member 31 is placed on top of the lower bar member 32, and the shielded wire 10 is sandwiched between the groove 34 of the upper bar member 31 and the lower bar member 32. The upper bar member 31 and the groove 34 form connection holes 35 that penetrate the ground bar 30 in the front-to-back direction. The shielded wire 10 is then passed through each connection hole 35. Without applying solder paste 24, a filling space 36 is formed between the inner surface of the connection hole 35 and the outer surface of the shielded wire 10 (shield member 13).
[0035] In this state, the solder paste 24 is heated. The heated solder paste 24 becomes molten and fills the gap between the inner surface of the connection hole 35 (groove 34) and the outer surface of the shield member 13, fixing it to the inner surface of the connection hole 35 and the outer surface of the shield wire 10. The fixing force of the solder paste 24 holds the ground bar 30 and the shield wire 10 (shield member 13) in the assembled state. The shield wire 10 and the ground bar 30 (bar member) are connected in a state where electrical conductivity is possible via the solder paste 24.
[0036] The shield cable B of this embodiment 2 comprises a plurality of shield wires 10 arranged in parallel, and a ground bar 30 that extends in a long, slender shape along the parallel direction of the shield wires 10. The outermost layer of the shield wires 10 is composed solely of a shielding member 13. The ground bar 30 is attached to the plurality of shield wires 10 in a manner that allows electrical communication with the plurality of shielding members 13. With this configuration, since the shield wires 10 do not have a sheath surrounding the shielding member 13, weight reduction can be achieved with respect to the plurality of shield wires 10 arranged in parallel.
[0037] The ground bar 30 includes an upper bar member 31 and a lower bar member 32 that sandwich multiple shield wires 10 in a parallel direction and in a direction that intersects them. The lower bar member 32 has multiple grooves 34 formed therein for individually accommodating multiple shield wires 10. With this configuration, the shield wires 10 can be positioned in the parallel direction by individually accommodating multiple shield wires 10 in the multiple grooves 34.
[0038] [Example 3] A shielded cable C of Embodiment 3, which embodies the present disclosure, will be described with reference to Figures 10 to 13. The shielded cable C of Embodiment 3 has a different configuration of the ground bar 40 than that of Embodiment 2. The other components are the same as those of Embodiments 1 and 2, so the same components are denoted by the same reference numerals, and the explanation of the structure, operation, and effect is omitted. The shielded cable C of Embodiment 3 comprises a plurality of shield wires 10, a ground bar 40, and a pair of sheet-like alignment members 26 (not shown). The shield wires 10 and the alignment members 26 are the same components as those of Embodiments 1 and 2.
[0039] The ground bar 40 is constructed by assembling an upper bar member 41 and a lower bar member 42. The upper bar member 41 has a constant thickness and is a long, slender, flat plate extending in the parallel direction of the shield wires 10. The upper bar member 41 is made of a conductive material such as metal. Specific examples of materials for the upper bar member 41 include copper, copper alloys, aluminum, and aluminum alloys.
[0040] The lower bar member 42 is a single part formed by press-forming a metal sheet. Specific examples of materials for the lower bar member 42 include copper, copper alloy, aluminum, and aluminum alloy. The lower bar member 42 has a symmetrical shape. The lower bar member 42 has a plurality of holding parts 43, a plurality of connecting parts 46, and a pair of left and right ear parts 48. In a front view of the ground bar 40, the holding parts 43 form a U-shape. Each holding part 43 has a semi-circular bottom plate part 44 and a pair of side plate parts 45 that rise parallel to each other upward from both the left and right ends of the bottom plate part 44. The plurality of holding parts 43 are arranged at a predetermined pitch along the parallel direction of the shield wire 10.
[0041] The multiple connecting portions 46 are flat plates with their thickness direction oriented vertically. Each connecting portion 46 is positioned between two adjacent holding portions 43 in the left-right direction. The left and right side edges of the connecting portion 46 are connected perpendicularly to the upper edge of the side plate portion 45 of the holding portion 43. The multiple holding portions 43 are connected via the connecting portions 46. The upper surface of the connecting portion 46 functions as a support surface 47 that supports the upper bar member 41 in a supported state.
[0042] The left of the pair of ear portions 48 extends horizontally to the left from the upper edge of the left side plate portion 45 of the retaining portion 43 located at the leftmost end. The right of the pair of ear portions 48 extends horizontally to the right from the upper edge of the right side plate portion 45 of the retaining portion 43 located at the rightmost end. A positioning recess 49 is formed at the portion where the ear portion 48 and the side plate portion 45 connect at a right angle.
[0043] The interior of the holding portion 43 functions as a groove 50 for accommodating the shielded wire 10. The front view shape of the groove 50 is U-shaped, similar to that of the holding portion 43. The bottom surface of the groove 50 is a semicircular surface. The radius of curvature of the semicircular arc on the bottom surface is slightly larger than the radius of the outer surface of the shield member 13. The depth dimension of the groove 50 from the support surface 47 is slightly larger than the outer diameter of the shielded wire 10.
[0044] When assembling the shield wire 10 and the ground bar 40, the upper bar member 41 is removed from the lower bar member 42, and solder paste 24 is applied to the inner surface of each groove 50. Next, the shield wire 10 is placed in the groove 50 of the lower bar member 42. After this, the upper bar member 41 is placed on the support surface 47 of the lower bar member 42, and both left and right ends of the upper bar member 41 are fitted into the positioning recesses 49. By assembling the upper bar member 41 and the lower bar member 42, multiple shield wires 10 are sandwiched between the upper bar member 41 and the groove 50. The upper bar member 41 and the groove 50 form connection holes 51 that penetrate the ground bar 40 in the front-to-back direction. The shield wires 10 are then passed through each connection hole 51. When no solder paste 24 is applied, a filling space 52 is formed between the inner surface of the connection hole 51 and the outer surface of the shield wire 10 (shielding member 13).
[0045] In this state, the solder paste 24 is heated. The heated solder paste 24 becomes molten and fills the gap (filling space 52) between the inner surface of the connection hole 51 (groove 50) and the outer surface of the shield member 13, fixing it to the inner surface of the connection hole 51 and the outer surface of the shield wire 10. The fixing force of the solder paste 24 holds the ground bar 40 and the shield wire 10 (shield member 13) in the assembled state. The shield wire 10 and the ground bar 40 (bar member) are connected in a state where electrical conductivity is possible via the solder paste 24.
[0046] The shielded cable C of this embodiment 3 comprises a plurality of shielded wires 10 arranged in parallel, and a ground bar 40 that extends in a long, slender shape along the parallel direction of the shielded wires 10. The outermost layer of the shielded wires 10 is composed solely of a shielding member 13. The ground bar 40 is attached to the plurality of shielded wires 10 in a manner that allows electrical communication with the plurality of shielding members 13. With this configuration, since the shielded wires 10 do not have a sheath surrounding the shielding member 13, weight reduction can be achieved with respect to the plurality of shielded wires 10 arranged in parallel.
[0047] The ground bar 40 includes an upper bar member 41 and a lower bar member 42 that sandwich multiple shield wires 10 in a parallel direction and in an intersecting vertical direction. The lower bar member 42 has multiple grooves 50 formed therein for individually accommodating multiple shield wires 10. With this configuration, the shield wires 10 can be positioned in the parallel direction by individually accommodating multiple shield wires 10 in the multiple grooves 50. Since the lower bar member 42 is a member formed by press-forming a metal plate, it is possible to reduce manufacturing costs and material costs.
[0048] [Other examples] The present invention is not limited to the embodiments described above and in the drawings, but is shown in the claims. The present invention includes the meaning of equivalents to the claims and all modifications within the claims, and also includes the following embodiments. In Examples 1 to 3, the shield member may be composed of a metal foil and a braided wire surrounding the metal foil, or it may be composed of the braided wire alone. In Examples 1 to 3, the ground bar may be in a form without grooves, for example, a form in which the surface facing the shield wire is flat. In Examples 1 to 3, the means for electrically fixing the ground bar and the shield member is not limited to solder paste; a conductive adhesive may be used, or a member having both conductivity and a mechanical fixing structure may be used. In Examples 1 to 3, the type and shape of the solder alloy are not particularly limited and can be appropriately set according to the shape of the bar member, etc. In Examples 1 to 3, the location where the solder paste is applied is not limited to the groove; it may also be applied to the bar member on the side without the groove. In Examples 1 to 3, the alignment member may be in a form other than a sheet. In Examples 1 to 3, multiple shielded wires may be aligned using only one alignment member. In Examples 1 to 3, one of the pair of bar members constituting the ground bar may be an insulating member. In Examples 2 and 3, the radius of curvature of the bottom surface of the groove may be the same as the radius of the outer surface of the shield member. In Example 2, the depth dimension of the groove portion from the bottom surface of the fitting groove may be the same as the outer diameter of the shielded wire. In Example 3, the depth dimension of the groove from the support surface may be the same as the outer diameter of the shielded wire. [Explanation of symbols]
[0049] A... Shielded cable B...Shielded cable C...Shielded cable 10...Shielded power lines 11...Conductor 12…Insulator 13…Shielding component 20... Grand Bar 21... Bar component 22… Groove 23…Connection hole 24...Cream solder 25…filling space 26…Alignment member 30... Grand Bar 31…Upper bar member (bar member) 32... Lower bar member (bar member) 33…Matching groove 34… Groove 35…Connection hole 36…filling space 40... Grand Bar 41…Upper bar member (bar member) 42... Lower bar member (bar member) 43...Holding part 44…Bottom plate part 45…Side plate part 46...Connection part 47…Support surface 48...Ear part 49…Positioning recess 50… Groove 51…Connection hole 52…filling space
Claims
1. Multiple shielded wires arranged in parallel, The shield wire comprises a ground bar that is elongated and extends along the parallel direction of the shield wire, The shielded wire comprises a conductor and a shielding member that surrounds the conductor. The outermost layer of the shielded wire is composed solely of the shielding member. The ground bar is attached to multiple shield wires in a manner that allows electrical communication with multiple shield members in a shield cable.
2. The shielded cable according to claim 1, wherein the shielding member is composed solely of metal foil.
3. The ground bar includes a pair of bar members that sandwich the plurality of shield wires in a direction intersecting the parallel direction, The shielded cable according to claim 1 or claim 2, wherein at least one of the pair of bar members has a plurality of grooves formed therein for individually accommodating a plurality of shielded wires.
4. The shield cable according to claim 3, wherein, when the shield wire is housed in the groove, a filling space is formed between the inner circumferential surface of the groove and the outer circumferential surface of the shield wire.
5. The shield cable according to claim 1 or claim 2, wherein the regions of the multiple shield wires to which the ground bar is not attached are held in a positional relationship separated in the parallel direction by an alignment member.
6. The shield cable according to claim 5, wherein the alignment member is in the form of a sheet that unfolds in the parallel direction.
7. The shield cable according to claim 6, wherein the pair of alignment members are arranged to sandwich the shield wire in a direction intersecting the parallel direction.
Citation Information
Patent Citations
Box ground bar, extra-fine coaxial cable assembly using box ground bar, and method of assembling extra-fine coaxial cable
JP2010092732A