WO2015022840A1 - 金具付導電シート - Google Patents
金具付導電シート Download PDFInfo
- Publication number
- WO2015022840A1 WO2015022840A1 PCT/JP2014/069271 JP2014069271W WO2015022840A1 WO 2015022840 A1 WO2015022840 A1 WO 2015022840A1 JP 2014069271 W JP2014069271 W JP 2014069271W WO 2015022840 A1 WO2015022840 A1 WO 2015022840A1
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- WO
- WIPO (PCT)
- Prior art keywords
- conductive sheet
- plate
- shaped
- metal
- metal fittings
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/182—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for flat conductive elements, e.g. flat cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
- H01R13/65912—Specific features or arrangements of connection of shield to conductive members for shielded multiconductor cable
- H01R13/65914—Connection of shield to additional grounding conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
- H01R4/646—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for cables or flexible cylindrical bodies
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0098—Shielding materials for shielding electrical cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
Definitions
- the present invention relates to a conductive sheet with a metal fitting provided with a conductive sheet material and a connection metal fitting for electrically connecting the sheet material and another member.
- a braided wire is conventionally used as a shield member that can be deformed in accordance with the deformation of an electric wire.
- the braided wire has a structure in which metal yarns are knitted into a cylindrical shape.
- Patent Document 1 an end portion of a tubular braided wire is put on a tubular portion of a metal shield shell auxiliary portion and fixed to the tubular portion by a ring-shaped fixing member. That is, the end portion of the braided wire is fixed to the cylindrical portion by being sandwiched between the cylindrical portion and the fixing member.
- the shield shell auxiliary portion is electrically connected to the metal casing through another metal member. Moreover, the electric wire passed through the braided wire is wired from the opening of the housing into the housing.
- the shield shell auxiliary part and the ring-shaped fixing member in Patent Document 1 are an example of a connection fitting that electrically connects a braided wire and another member.
- a conductive sheet material such as a metal cloth or a metal foil
- a metal cloth is used as the shield member instead of the braided wire.
- the metal cloth is used in a state of being held in a cylindrical shape surrounding the periphery of the electric wire.
- the metal cloth has a network structure in which metal yarns are woven to cross each other.
- connection fitting for electrically connecting the sheet material and another conductor such as a reference potential body is required.
- an electrical component including a conductive sheet material and a connection fitting connected to the sheet material is referred to as a fitting-equipped conductive sheet.
- connection fitting In the conductive sheet with metal fittings, it is important that the fixing strength of the connection fitting to the sheet material is sufficiently large and that the connection resistance between the sheet material and the connection fitting is sufficiently small.
- the fixing force is the force required to separate the connection fitting and the sheet material when a force in the direction of pulling out the sheet material from the portion of the connection fitting connected to the sheet material is applied to the sheet material. It is.
- the connection resistance is an electrical resistance between the conductive sheet material and the connection fitting.
- An object of the present invention is to make it easy to achieve both a small connection resistance and a large fixing force in a conductive sheet with a metal fitting provided with a conductive sheet material and a connection metal fitting for electrically connecting the sheet material and another member.
- the conductive sheet with metal fittings includes the following constituent elements.
- the first component is a conductive sheet material.
- the second component is a connection fitting that has a crimping portion that is crimped to an edge of the sheet material and electrically connects the sheet material and another member.
- the crimping part is a part formed by folding a plate-like part.
- the crimping portion includes a pair of plate-like sandwiching portions sandwiching an edge portion of the sheet material, and a folded portion that connects the pair of plate-like sandwiching portions.
- At least one of the pair of plate-like sandwiching portions is located on the outer surface of the intermediate region between the folded portion and the edge of the plate-like sandwiching portion on the opposite side, with respect to the sheet material, than the other portions. It has a strip-shaped recess formed in a strip shape by being strongly crimped.
- the conductive sheet with metal fittings according to the second aspect is one aspect of the conductive sheet with metal fittings according to the first aspect.
- the surface of the strip-shaped recess includes a strip-shaped inclined surface along the longitudinal direction of the strip-shaped recess.
- the band-shaped inclined surface is a surface that is gradually formed deeper from the end in the width direction of the band-shaped recess to a position closer to the center.
- the conductive sheet with metal fittings according to the third aspect is one aspect of the conductive sheet with metal fittings according to the second aspect.
- the surface of the strip-shaped recess further includes a strip-shaped flat surface along the longitudinal direction of the strip-shaped recess.
- the belt-like flat surface is a surface formed with a certain depth between a pair of belt-like inclined surfaces formed from both ends in the width direction of the belt-shaped recess.
- the conductive sheet with metal fittings according to the fourth aspect is one aspect of the conductive sheet with metal fittings according to the third aspect.
- the sheet material is a metal cloth having a mesh structure in which metal yarns are crossed and woven. Furthermore, the said strip-shaped flat surface in the said strip-shaped recessed part is formed in the width
- the conductive sheet with metal fittings according to the fifth aspect is one aspect of the conductive sheet with metal fittings according to any one of the first to third aspects.
- the sheet material is a metal cloth having a mesh structure in which metal yarns are woven to intersect each other.
- the conductive sheet with metal fittings according to the sixth aspect is one aspect of the conductive sheet with metal fittings according to any one of the first to fifth aspects.
- the band-shaped recess is formed along one straight line only on one of the pair of plate-shaped holding portions.
- the conductive sheet with metal fittings according to the seventh aspect is one aspect of the conductive sheet with metal fittings according to either the first aspect or the second aspect.
- the band-shaped recesses include the two rows of recesses formed in parallel to one of the pair of plate-shaped sandwiching portions, and the two in the other of the pair of plate-shaped sandwiching portions. And a row of recesses formed at positions facing regions between the row of recesses.
- the conductive sheet with metal fittings according to the eighth aspect is one aspect of the conductive sheet with metal fittings according to any one of the first to seventh aspects.
- the pair of plate-like sandwiching portions includes a spot compression portion locally in an intermediate region between the folded portion and the edge of the plate-like sandwiching portion on the opposite side.
- the spot compression part is a part that forms a convex part on the surface on one side in the thickness direction of the pair of plate-shaped sandwiching parts that are compressed and overlapped with the surrounding part and forms a concave part on the surface on the other side. is there.
- the conductive sheet with metal fittings according to the ninth aspect is an aspect of the conductive sheet with metal fittings according to the eighth aspect.
- the spot compression portion is formed so as to overlap the band-shaped recess.
- the conductive sheet with metal fittings according to the tenth aspect is one aspect of the conductive sheet with metal fittings according to the eighth aspect or the ninth aspect.
- the convex portion on one surface of the spot compression portion is formed with a larger width on the top side than on the root.
- the conductive sheet with metal fittings according to the eleventh aspect is one aspect of the conductive sheet with metal fittings according to any one of the first to seventh aspects.
- the crimp portion has a bent portion that is formed into a bent shape when viewed from the folded portion side.
- the conductive sheet with metal fittings according to the twelfth aspect is one aspect of the conductive sheet with metal fittings according to any one of the first aspect to the eleventh aspect.
- the edge on the opposite side of the folded portion in each of the pair of plate-shaped sandwiching portions is formed in a shape warped to the opposite side with respect to the sheet material side. Yes.
- both of the pair of plate-like sandwiching portions sandwiching the sheet material are flat, that is, when the entire area of the pair of plate-like sandwiching portions is uniformly pressurized by the crimping machine, the pressure is removed.
- the spring back amount of the crimping part is large.
- the entire pair of plate-like sandwiching portions is opened at a minute acute angle, and the sandwiching force of the pair of plate-like sandwiching portions with respect to the sheet material is reduced. Therefore, it is difficult to achieve both a small connection resistance and a large fixing force.
- one of the pair of plate-like sandwiching parts sandwiching the edge of the sheet material has a belt-like recess on the outer surface of the intermediate region.
- the band-shaped recess is a portion that is more strongly pressure-bonded to the sheet material than other portions.
- the pair of plate-shaped sandwiching portions are in closer contact with the sheet material at the bottom portion of the band-shaped recess than the other portions.
- the conductive sheet with metal fittings according to each aspect described above it is easy to achieve both a small connection resistance and a large fixing force.
- the pressurizing force of a crimping machine can be reduced compared with the case where the whole area
- the region where the band-shaped inclined surface is formed in the band-shaped recess is gradually in close contact with the sheet material as it approaches the deep portion of the recess from the shallow portion at the end in the width direction of the band-shaped recess. ing. Therefore, even when some variation in the crimping state of the crimping portion occurs, at least a part of the region where the strip-shaped inclined surface is formed in the strip-shaped recess has a strength suitable for obtaining a sufficient fixing force. Will be in close contact.
- the region where the belt-like flat surface is formed in the belt-like concave portion is a region at the bottom of the concave portion, and is a region that adheres more strongly to the sheet material than other regions.
- seat material is formed widely. Therefore, even when variations in the crimping state of the crimping portion occur, the connection resistance between the pair of plate-shaped sandwiching portions and the sheet material can be reliably reduced, and the quality of the conductive sheet with metal fittings is stabilized.
- the sheet material is a metal cloth having a mesh structure in which metal threads are woven to intersect.
- This metal cloth is lightweight and excellent in flexibility, and further superior in durability and air permeability during bending deformation as compared with metal foil and the like. Accordingly, the metal cloth is suitable as an electric transmission medium mounted on a vehicle such as an automobile having a severe environment of vibration and temperature change.
- the band-shaped flat surface in the band-shaped recess is formed with a width larger than the pitch of the metal yarn in the metal cloth. For this reason, poor contact between the pair of plate-shaped sandwiching portions and the metal thread of the sheet material due to variation in the positional relationship between the crimping portion and the sheet material is avoided. As a result, the connection resistance between the pair of plate-shaped sandwiching portions and the sheet material can be reliably reduced, and the quality of the conductive sheet with metal fittings is stabilized.
- the spot compression part is a part in which one part of the pair of plate-like sandwiching parts and the other part are more firmly bonded. Therefore, according to the eighth aspect, even when a strong external force is applied to the connection fitting and when the connection fitting is subjected to thermal expansion, the spot compression portion has the holding force of the pair of plate-like holding portions with respect to the sheet material. Prevent decline.
- the spot compression part is formed so as to overlap with a belt-like recess having a high degree of close contact between the pair of plate-like sandwiching parts. Therefore, it can prevent that the crimping
- the convex portion on one surface of the spot compression portion is formed with a larger width on the top side than on the root portion.
- an engagement structure in which one portion and the other portion of the pair of plate-like sandwiching portions are engaged with each other occurs in the spot compression portion.
- the crimping portion has a bent portion formed in a bent shape when viewed from the folded portion side. Similar to the spot compression portion, this bent portion also prevents the holding force of the pair of plate-like holding portions with respect to the sheet material from being reduced due to external force and thermal expansion.
- the edge portion on the opposite side to the folded portion in each of the pair of plate-shaped sandwiching portions is formed in a shape warped to the opposite side with respect to the sheet material side. Therefore, it can prevent that a sheet
- FIG. 1A It is a front view of 1A of electrically conductive sheets with metal fittings. It is an exploded top view of wire harness 10 provided with 1A of conductive sheets with metal fittings. 2 is a side view of an end portion of the wire harness 10.
- FIG. It is sectional drawing of the part of the crimping
- connection metal fitting which concerns on the 4th application example applicable to the electrically conductive sheet with metal fittings 1, 1A, 1D. It is a perspective view which shows a mode that the bending part of the connection metal fitting which concerns on a 4th application example is shape
- FIGS. 2 is a cross-sectional view taken along the plane II-II in FIG.
- the conductive sheet with metal fittings 1 in this embodiment is an electrical component that electrically connects two conductive members.
- the metal sheet with bracket 1 electrically connects two metal housings mounted on a vehicle such as an automobile.
- both end portions of the metal-fitted conductive sheet 1 are connected to two metal casings mounted on a vehicle such as an automobile.
- one of the metal casings is connected to a reference potential body such as a vehicle body, both of the two metal casings connected by the conductive sheet with metal fittings 1 are grounded.
- the conductive sheet 1 with metal fittings includes a conductive sheet material 2 and a connection metal fitting 3 that electrically connects the sheet material 2 and another member.
- the connection object of the connection fitting 3 is, for example, a metal housing that houses an electrical device.
- the conductive sheet material 2 is, for example, a metal cloth or a metal foil.
- the metal cloth is, for example, a cloth having a network structure in which metal threads mainly composed of copper are woven so as to intersect each other in the vertical and horizontal directions.
- the metal cloth may have a structure in which a flexible film made of a resin material is attached to a metal yarn cloth.
- the metal cloth is lightweight and excellent in flexibility, and further excellent in durability and air permeability during bending deformation as compared with metal foil and the like.
- the sheet material 2 is a metal cloth.
- each of the four edge portions of the sheet material 2 is referred to as a first edge portion 21, a second edge portion 22, a third edge portion 23, and a fourth edge portion 24.
- the first edge 21 and the second edge 22 on the opposite side are parts to which the connection fitting 3 is crimped, and are parts that occupy a certain range from the outer edge of the sheet material 2 to the inside.
- connection fitting 3 is a fitting that electrically connects the sheet material 2 and another conductive member.
- the connection fitting 3 that is crimped to the sheet material 2 is obtained, for example, by bending and pressing a metal plate.
- the material of the connection fitting 3 is, for example, a copper alloy, iron or stainless steel. It is also conceivable that the connection fitting 3 includes a cored bar part mainly composed of copper or the like and tin plating formed on the surface of the cored bar part.
- the conductive sheet 1 with metal fittings includes two connection metal fittings 3 that are pressure-bonded to the first edge portion 21 and the second edge portion 22 of the sheet material 2.
- connection fitting 3 has a crimping portion 31 that is crimped to the edge of the sheet material 2.
- connection fitting 3 further includes a connection portion 32 that is directly connected to a conductive member that is a connection partner of the sheet material 2.
- the crimping part 31 is a part formed by folding the plate-like part.
- the crimping portion 31 is a double plate-like portion that is bent and bent.
- the crimping portion 31 includes a pair of plate-like sandwiching portions 311 and 312 sandwiching the edge of the sheet material 2 and a folded portion 313 that connects the pair of plate-like sandwiching portions 311 and 312. One of the pair of plate-shaped holding portions 311 and 312 is connected to the connection portion 32.
- one of the pair of plate-like sandwiching portions 311 and 312 connected to the connection portion 32 is referred to as a first plate-like sandwiching portion 311, and the other is referred to as a second plate-like sandwiching portion 312.
- connection portion 32 of each of the two connection fittings 3 When the connection portion 32 of each of the two connection fittings 3 is connected to each of the two connection objects (conductive members), one connection fitting 3, the sheet material 2, and the other connection fitting from one of the two connection objects. A current flows through 3 and the other of the two connection objects.
- each of the two connection objects is a metal casing that houses an electrical device
- the two metal casings are connected to one of the two metal casings through one connection fitting 3, the sheet material 2, and the other connection fitting 3.
- Earth current flows to the other.
- the metal sheet with bracket 1 is a drain wire through which a ground current flows.
- the conductive sheet 1 Since a high-frequency current flows between two connection objects, it is necessary to reduce the inductance of the electric transmission medium that electrically connects the two connection objects. It is preferable to employ the conductive sheet 1 with metal fittings that has it. In addition, when the relative position of the two connection objects changes due to vibration or the like, it is preferable to employ the conductive sheet with metal fittings 1 having a metal cloth excellent in flexibility and durability during bending deformation as the sheet material 2. It is.
- One of the pair of plate-shaped sandwiching portions 311 and 312 has a strip-shaped recess 314 that is formed in a strip shape by being pressed against the sheet material 2 more strongly than the other portions.
- the band-shaped recess 314 is formed on the outer surface of the intermediate region between the folded portion 313 and the opposite edge portion of one of the pair of plate-shaped sandwiching portions 311 and 312.
- the strip-shaped recess 314 is formed in a strip shape parallel to the ridgeline (folding line) of the folded portion 313.
- the band-shaped recess 314 is formed in a band shape extending in a direction along the ridge line of the folded-back part 313.
- the strip-shaped recess 314 is formed along a straight line only in the second plate-shaped sandwiching section 312. Therefore, in the first plate-shaped sandwiching portion 311, the outer surface of the portion other than the edge portion 3110 on the opposite side to the folded portion 313 is a flat surface.
- the band-shaped concave portion 314 is a portion that is more strongly pressure-bonded to the sheet material 2 than the other portions in the second plate-shaped sandwiching portion 312.
- the pair of plate-shaped sandwiching portions 311 and 312 are more closely attached to the sheet material 2 at the bottom portion 3144 of the band-shaped recess 314 than at other portions.
- FIG. 2 is a cross-sectional view of a portion of the crimping portion 31 in the conductive sheet 1 with metal fittings.
- the surface of the strip-shaped recess 314 includes a strip-shaped inclined surface 3141 along the longitudinal direction of the strip-shaped recess 314.
- the band-shaped inclined surface 3141 is an inclined surface that is gradually formed deeper from the end in the width direction of the band-shaped recess 314 to a position closer to the center.
- the surface of the band-shaped recess 314 includes a pair of band-shaped inclined surfaces 3141 that are gradually formed deeper from both ends in the width direction of the band-shaped recess 314 to positions closer to the center thereof.
- each of the band-shaped inclined surfaces 3141 is an arc surface whose inclination angle gradually decreases from the end in the width direction of the band-shaped recess 314 toward the position closer to the center.
- the surface of the strip-shaped recess 314 further includes a strip-shaped flat surface 3142 along the longitudinal direction of the strip-shaped recess 314.
- the belt-like flat surface 3142 is a surface formed with a certain depth between the pair of belt-like inclined surfaces 3141. Accordingly, the portion of the strip-shaped recess 314 where the strip-shaped flat surface 3142 is formed forms the bottom portion 3144 of the strip-shaped recess 314.
- the portion 3143 where the band-shaped inclined surface 3141 is formed in the band-shaped recess 314 gradually becomes tightly in close contact with the sheet material 2 as it approaches the deep portion of the band-shaped recess 314 from the shallow portion at the end in the width direction of the band-shaped recess 314. Yes.
- the band-shaped flat surface 3142 in the band-shaped recess 314 is formed with a width larger than the pitch of the metal yarn in the metal cloth (sheet material 2).
- the pitch of the metal thread in the metal cloth constituting the sheet material 2 is 0.5 millimeter, it is conceivable that the width of the belt-like flat surface 3142 is 1.0 millimeter or more.
- edge portions 3110 and 3120 on the opposite side to the folded portion 313 in each of the pair of plate-shaped sandwiching portions 311 and 312 are bent in a shape warped to the opposite side with respect to the sheet material 2 side. Thereby, it can prevent that the sheet
- the crimping step is a step of obtaining the connection fitting 3 that is crimped to the sheet material 2 by pressing the portion of the crimping portion of the pre-crimping fitting 3x that is the bent metal plate of the connection fitting 3. .
- the crimping part 31x of the pre-crimping metal fitting 3x is bent in advance at an acute angle.
- the crimping portion 31x of the pre-crimping metal fitting 3x includes a pair of plate-like sandwiching portions 311x and 312x that are positioned on both sides of the gap into which the edge of the sheet material 2 is inserted and forms an acute angle, and the pair of plate-like sandwiching portions 311x, And a bent portion 313x connecting 312x.
- the edge portions 3110x and 3120x of each of the pair of plate-shaped sandwiching portions 311x and 312x are bent in a shape that warps to the opposite side with respect to the opposite sides.
- the pair of plate-shaped sandwiching portions 311x, 312x and the bending portion 313x become the pair of plate-shaped sandwiching portions 311 and 312 and the folded portion 313 in the connection fitting 3, respectively.
- the crimping machine 9 that presses the pre-crimp fitting 3x includes a lower die 91 and an upper die 92 that sandwich and mold the crimp portion 31x of the pre-crimp fitting 3x.
- the lower mold 91 is a mold in which a first molding surface 910 for molding the outer surface of the first plate-shaped sandwiching portion 311x is formed.
- the upper mold 92 is a mold in which a second molding surface 920 for molding the outer surface of the second plate-shaped sandwiching portion 312x is formed.
- the first molding surface 910 is a flat surface in a region other than a portion facing the warped edge 3110x in the first plate-shaped sandwiching portion 311x. Further, the first molding surface 910 is formed with a groove 919 for avoiding contact with the warped edge portion 3110x in the first plate-shaped sandwiching portion 311x.
- molding surface 920 contains the flat surface 921 and the convex surface 922 in area
- the convex surface 922 of the second molding surface 920 is formed in a strip shape along a straight line. That is, in FIG. 3, the convex surface 922 is formed in a strip shape along the depth direction of the paper surface.
- the convex surface 922 of the second molding surface 920 is a portion for molding the band-shaped concave portion 314 of the connection fitting 3.
- the convex surface 922 of the second molding surface 920 includes a strip-shaped side surface 9221 along the longitudinal direction.
- the side surface 9221 of the convex surface 922 is an inclined surface formed so as to gradually increase from the end in the width direction of the convex surface 922 to a position closer to the center.
- the convex surface 922 includes a pair of side surfaces 9221 formed so as to be gradually higher from each end in the width direction to a position closer to the center.
- each of the inclined side surfaces 9221 is an arc surface whose inclination angle gradually decreases from the end in the width direction of the convex surface 922 toward a position closer to the center.
- the convex surface 922 further includes a flat top surface 9222 along the longitudinal direction thereof.
- the top surface 9222 of the convex surface 922 is a surface formed at a constant height between the pair of belt-shaped inclined surfaces 3141.
- the pair of side surfaces 9221 and the top surface 9222 of the convex surface 922 are portions for forming the pair of strip-shaped inclined surfaces 3141 and the strip-shaped flat surface 3142 of the strip-shaped recess 314 of the connection fitting 3.
- the present embodiment is an example in which the crimping structure (see FIG. 2) of the connection fitting 3 to the conductive sheet material 2 is applied to the fitting conductive sheet 1 functioning as a drain wire.
- one of the pair of plate-shaped sandwiching portions 311 and 312 sandwiching the edge of the sheet material 2 has a strip-shaped recess 314 on the outer surface of the intermediate region.
- the strip-shaped concave portion 314 is pressure-bonded more strongly to the sheet material 2 than other portions.
- the pair of plate-shaped sandwiching portions 311 and 312 are more closely attached to the sheet material 2 at the bottom portion 3144 of the band-shaped recess 314 than at other portions.
- the clamping force of the pair of plate-like holding portions 311 and 312 due to the spring back phenomenon that is, the isolation width of the entire pair of plate-like holding portions 311 and 312 can be reduced. it can.
- the connection resistance between the pair of plate-shaped sandwiching portions 311 and 312 and the sheet material 2 is reduced.
- a portion other than the bottom portion 3144 of the band-shaped recess 314 in the pair of plate-shaped sandwiching portions 311, 312 it is possible to create a state of being in close contact with each other over a wide area so that sufficient fixing force can be obtained.
- the conductive sheet with metal fittings 1 it is easy to achieve both a small connection resistance and a large fixing force. Moreover, if the conductive sheet 1 with metal fittings is employed, the pressure applied by the crimping machine 9 can be reduced as compared with the case where the entire area of the pair of plate-shaped sandwiching portions 311 and 312 is uniformly pressurized by the crimping machine 9. Can do. As a result, the effect of downsizing and cost reduction of the crimping equipment can be obtained.
- the portion where the band-shaped inclined surface 3141 is formed in the band-shaped recess 314 gradually and strongly becomes stronger with the sheet material 2 from the shallow portion at the end in the width direction of the band-shaped recess 314 toward the deep portion of the recess. It is in close contact. Therefore, even when some variation in the crimping state of the crimping portion 31 occurs, at least a part of the portion 3143 in which the strip-shaped inclined surface 3141 in the strip-shaped recess 314 is formed has a sufficient fixing force. It is in close contact with suitable strength.
- the bottom portion 3144 where the strip-shaped flat surface 3142 of the strip-shaped recess 314 is formed is a region that is more closely attached to the sheet material 2 than the other portions.
- a portion that is strongly adhered to the sheet material 2 is formed widely. Therefore, even when variations in the crimping state of the crimping portion 31 occur, the connection resistance between the pair of plate-shaped sandwiching portions 311 and 312 and the sheet material 2 can be reliably reduced, and the conductive sheet 1 with brackets can be reduced. Quality is stable.
- the metal cloth that can be adopted as the sheet material 2 is lightweight and excellent in flexibility, and further, superior in durability and air permeability during bending deformation as compared with a metal foil or the like. Therefore, the metal cloth is suitable as the sheet material 2 of the metal-attached conductive sheet 1 mounted on a vehicle such as an automobile having a severe environment of vibration and temperature change.
- the band-shaped flat surface 3142 in the band-shaped recess 314 is formed with a width larger than the pitch of the metal yarn in the metal cloth.
- poor contact between the pair of plate-like sandwiching portions 311 and 312 and the metal thread of the sheet material 2 due to the variation in the positional relationship between the crimping portion 31 and the sheet material 2 is avoided.
- the connection resistance between the pair of plate-shaped sandwiching portions 311 and 312 and the sheet material 2 can be reliably reduced, and the quality of the conductive sheet 1 with metal fittings is stabilized.
- FIG. 5 is a plan view of the conductive sheet with metal fittings 1A.
- FIG. 6 is a front view of the conductive sheet with metal fittings 1A.
- FIG. 7 is an exploded plan view of the wire harness 10 provided with the metal-attached conductive sheet 1A.
- FIG. 8 is a side view of the end portion of the wire harness 10. 5 to 8, the same components as those shown in FIGS. 1 and 2 are given the same reference numerals.
- the conductive sheet with metal fittings 1 ⁇ / b> A includes a conductive sheet material 2 and a connection metal fitting 3 ⁇ / b> A that is crimped to the edge of the sheet material 2, as with the conductive sheet with metal fittings 1. Further, the crimping portion 31 of the connection fitting 3 ⁇ / b> A is crimped to the sheet material 2 with the same crimping structure as the crimping portion 31 of the connection fitting 3.
- the conductive sheet with metal fittings 1A has a different use from the conductive sheet with metal fittings 1A.
- 1 A of electrically conductive sheets with metal fittings are electromagnetic shielding tools which shield noise electromagnetic waves in the wire harness 10 mounted in a vehicle.
- the conductive sheet with metal fittings 1A includes a conductive sheet material 2 and four connection fittings 3A.
- the two connecting fittings 3A are pressure-bonded in a state aligned with the first edge 21 of the sheet material 2, and the remaining two connecting fittings 3A are aligned in a row with the second edge 22 of the sheet material 2. It is crimped.
- connection fitting 3 ⁇ / b> A has a crimping portion 31 that is crimped to the edge of the sheet material 2 and two connection portions 32 that are connected to both sides of the crimping portion 31.
- Each crimping portion 31 of the connection fitting 3A is crimped to the sheet material 2 with the same structure as the crimping portion 31 of the connection fitting 3 shown in FIG.
- connection fittings 3A that are pressure-bonded to the first edge portion 21 of the sheet material 2 are formed into an annular shape by combining them.
- the two connection fittings 3A that are pressure-bonded to the second edge 22 of the sheet material 2 are formed in an annular shape by combining them.
- the connector-attached wire group 5 includes a plurality of terminal-attached wires 51 and two connectors 52.
- Each of the terminal-attached electric wires 51 is an insulated electric wire having a terminal fitting 511 connected to an end portion.
- Each connector 52 is a non-conductive member that holds both ends of each of the plurality of terminal-attached electric wires 51 in a state of being arranged in parallel.
- the connector 52 is a synthetic resin mold member formed by insert molding using the ends of the plurality of electric wires with terminals 51 as inserts.
- the connector 52 has an electric wire holding part 521 and a terminal surrounding part 522.
- maintenance part 521 is a part which hold
- the terminal surrounding part 522 is a cylindrical part surrounding the terminal fitting 511 of each of the electric wires with terminal 51 arranged in parallel.
- the opening of the cylindrical terminal enclosure 522 is an opening for accessing the terminal fitting 511.
- the opening of the terminal surrounding portion 522 is closed by a lid member (not shown) after the terminal fitting 511 is connected to the terminal portion of the counterpart device by a screw or the like.
- connection fittings 3A crimped to the first edge portion 21 of the sheet material 2 are combined from both sides of the wire holding portion 521 in the connector 52 of the first end portion of the connector-attached electric wire group 5.
- the two connection fittings 3 ⁇ / b> A are combined in a state of sandwiching the electric wire holding portion 521, and are formed in an annular shape along the outer surface of the electric wire holding portion 521.
- connection fittings 3A crimped to the second edge portion 22 of the sheet material 2 are combined from both sides of the wire holding portion 521 in the connector 52 at the second end portion of the connector-attached electric wire group 5. At that time, the two connection fittings 3A are combined in a state where the respective connection portions 32 overlap each other.
- connection fittings 3A sandwich the electric wire holding portion 521 in each of the first edge portion 21 and the second edge portion 22 of the sheet material 2. They are combined in a state and formed in an annular shape along the outer surface of the electric wire holding portion 521.
- the sheet material 2 is folded back at the intermediate portion 25 and held in a cylindrical shape surrounding the plurality of terminal-attached electric wires 51. At that time, it is desirable that the sheet material 2 is formed in a cylindrical shape in a state where the third edge portion 23 and the fourth edge portion 24 of the sheet material 2 overlap.
- the terminal surrounding part 522 is fitted into the frame of the opening 71 of the housing 7 that accommodates the device to which the terminal-attached electric wire 51 is connected.
- casing 7 is drawn with the virtual line (two-dot chain line).
- a packing 53 which is an annular elastic member, is attached to the outer peripheral surface of the terminal enclosure 522.
- the packing 53 is sandwiched between the terminal surrounding part 522 and the frame of the housing 7. Thereby, the packing 53 fills a gap between the terminal surrounding portion 522 and the frame of the opening 71 of the housing 7.
- the terminal fittings 511 in the terminal enclosing portion 522 are each connected to the device in the housing 7 by screws or the like. Connected to the base 72.
- connection fitting 3A the overlapping connection portion 32 in the two connection fittings 3A combined in an annular shape is fixed to a part of the fixing seat 73 of the housing 7 by the screw 4. Thereby, the conductive sheet material 2 is electrically connected to the metal casing 7 via the connection fitting 3A.
- an earth current flows between the sheet material 2 functioning as an electromagnetic shielding member surrounding the periphery of the terminal-attached electric wire 51 and the casing 7 serving as a reference potential body.
- the present embodiment is an example in which the crimping structure (see FIG. 2) of the connection fitting 3 to the conductive sheet material 2 is applied to the fitting-equipped conductive sheet 1A that functions as an electromagnetic shield. .
- the two connection fittings 3A that are crimped in a row with respect to the edge of the conductive sheet material 2 are combined from both sides of the electric wire group with connectors 5 and held in an annular shape.
- the sheet material 2 is formed in a cylindrical shape surrounding the periphery of the terminal-attached electric wire 51.
- the metal sheet with metal fittings 1A since the metal sheet with metal fittings 1A does not need to be formed in a cylindrical shape in advance, it can be retrofitted to the electric wire group with connectors 5. More specifically, the fitting-equipped conductive sheet 1A can be attached to the electric wire after the connector 52 or the like is attached to the end portion, and wiring from the outside to the inside of the housing 7 was performed. It is possible to attach to a later electric wire.
- connection fittings 3A serve to hold the sheet material 2 in a cylindrical shape and to maintain an electrical connection between the sheet material 2 and another conductive member such as a metal housing. Therefore, when the metal sheet with metal fittings 1A is employed, the man-hours for managing and handling the parts are simplified as compared with the case where a plurality of members are handled by employing the conventional braided wire and the caulking metal fittings.
- the conductive sheet with metal fittings 1A can also surround the electric wire along the curved path.
- FIG. 9 is a cross-sectional view of a portion of the crimping portion 31A according to the first application example, and corresponds to FIG.
- connection metal fittings 3 and 3A of the conductive sheet with metal fittings 1 and 1A the band-shaped recess 314 of the crimping part 31 was formed along only one straight line only in the second plate-like clamping part 312. Further, the outer surface of the portion other than the edge 3110 in the first plate-shaped sandwiching portion 311 was a flat surface.
- the second plate-shaped sandwiching part 312 has a strip-shaped recess 314A formed in a strip shape by being crimped to the sheet material 2 more strongly than the other parts. Yes.
- the strip-like recesses 314A are formed in parallel in two rows with a gap only in the second plate-like sandwiching part 312. Therefore, in the first plate-shaped sandwiching portion 311 of the crimping portion 31A, the outer surface of the portion other than the edge portion 3110 opposite to the folded portion 313 is a flat surface.
- the surface of the strip-shaped recess 314A includes a strip-shaped inclined surface 3141 along the longitudinal direction of the strip-shaped recess 314A.
- the band-shaped inclined surface 3141 is an inclined surface formed gradually deeper from the end in the width direction of the band-shaped recess 314A to a position closer to the center than that.
- the surface of the strip-shaped recess 314A includes a pair of strip-shaped inclined surfaces 3141A that are gradually formed deeper from both ends in the width direction of the strip-shaped recess 314A to positions closer to the center thereof.
- the band-shaped inclined surface 3141A is an arc surface whose inclination angle gradually decreases from the end in the width direction of the band-shaped recess 314 toward the position closer to the center.
- the surface of the strip-shaped recess 314A does not include the strip-shaped flat surface 3142 (see FIG. 2) formed at a certain depth between the pair of strip-shaped inclined surfaces 3141. It is also conceivable that the surface of the band-shaped recess 314A includes a band-shaped flat surface 3142.
- the pair of plate-like sandwiching parts 311 due to the springback phenomenon is compared to the case where both of the pair of plate-like parts sandwiching the sheet material 2 are flat.
- the clamping force of 312 can be loosened, that is, the isolation width of the entire pair of plate-like clamping parts 311 and 312 can be reduced.
- the structure of the crimping part 31A it is easy to achieve both a small connection resistance and a large fixing force. Further, if the structure of the crimping part 31A is adopted, the applied pressure of the crimping machine 9 can be reduced as compared with the case where the entire area of the pair of plate-shaped sandwiching parts 311 and 312 is uniformly pressurized by the crimping machine 9. Can do. As a result, the effect of downsizing and cost reduction of the crimping equipment can be obtained.
- FIG. 10 is a cross-sectional view of a portion of the crimping portion 31B according to the second application example, and corresponds to FIGS.
- the second plate-like sandwiching portion 312 of the crimping portion 31B has the same structure as the second plate-like sandwiching portion 312 of the crimping portion 31A. That is, the second plate-shaped sandwiching portion 312 of the crimping portion 31B has two rows of strip-shaped recesses 314A formed in parallel.
- the first plate-like sandwiching part 311 also has a strip-like recess 314A, like the second plate-like sandwiching part 312.
- the strip-shaped recesses 314A of the first plate-shaped sandwiching portion 311 are formed in one row at a position facing the region between the two rows of strip-shaped recesses 314A in the second plate-shaped sandwiching portion 312.
- the surface of the strip-shaped recess 314A in each of the first plate-shaped sandwiching portion 311 and the second plate-shaped sandwiching portion 312 includes a strip-shaped inclined surface 3141 along the longitudinal direction of the strip-shaped recess 314A.
- the surface of the band-shaped recess 314A includes a pair of band-shaped inclined surfaces 3141 that are gradually formed deeper from both ends in the width direction of the band-shaped recess 314A to positions closer to the center.
- the surface of the strip-shaped recess 314A does not include the strip-shaped flat surface 3142 (see FIG. 2) formed at a certain depth between the pair of strip-shaped inclined surfaces 3141. It is also conceivable that the surface of the band-shaped recess 314A includes a band-shaped flat surface 3142.
- FIG. 11 is a cross-sectional view of a portion of the crimping portion 31C according to the third application example, and corresponds to FIG.
- the second plate-like sandwiching part 312 has a strip-shaped recess 314 ⁇ / b> B formed in a strip shape by being crimped to the sheet material 2 more strongly than other parts.
- the strip-shaped concave portion 314B is formed along one straight line only in the second plate-shaped sandwiching portion 312. Therefore, in the first plate-shaped sandwiching portion 311, the outer surface of the portion other than the edge portion 3110 on the opposite side to the folded portion 313 is a flat surface.
- the surface of the strip-shaped recess 314B includes a strip-shaped inclined surface 3141B along the longitudinal direction of the strip-shaped recess 314A.
- the band-shaped inclined surface 3141B is an inclined surface that is gradually formed deeper from the end in the width direction of the band-shaped recess 314A to a position closer to the center than that.
- the portion 3143B in which the band-shaped inclined surface 3141B is formed in the band-shaped recess 314B is in a state of being gradually and tightly adhered to the sheet material 2 as it approaches the deep portion of the band-shaped recess 314B from the shallow portion at the end in the width direction of the band-shaped recess 314B. Yes.
- the surface of the band-shaped recess 314B includes a pair of band-shaped inclined surfaces 3141B that are gradually formed deeper from both ends in the width direction of the band-shaped recess 314B to positions closer to the center thereof.
- Each of the belt-shaped inclined surfaces 3141B is a plane inclined at a constant angle.
- the surface of the band-shaped recess 314B includes a band-shaped flat surface 3142 formed with a certain depth between the pair of band-shaped inclined surfaces 3141B.
- FIG. 12 is a plan view of the conductive sheet with metal fittings 1D.
- FIG. 13 is a cross-sectional view of a portion of the crimping portion 31D of the connection metal fitting in the conductive sheet with metal fitting 1D.
- FIG. 14 is a cross-sectional view of the spot compression portion 315 of the connection fitting 3D in the conductive sheet with fitting 1D.
- FIG. 15 is a cross-sectional view of a portion of the spot compression part 315 during molding in the conductive sheet with metal fittings 1D.
- the conductive sheet with metal fittings 1D is an application example of the conductive sheet with metal fittings 1A according to the second embodiment.
- the points of the conductive sheet with metal fittings 1D that are different from the conductive sheet with metal fittings 1A will be described.
- the conductive sheet with metal fittings 1D is an electromagnetic shielding tool that shields noise electromagnetic waves, like the conductive sheet with metal fittings 1A.
- the metal-fitted conductive sheet 1D does not have a structure for holding the sheet material 2 in a cylindrical shape. For this reason, the conductive sheet with metal fittings 1D is disposed on the side of a wire harness (not shown) and performs an electromagnetic shielding function on the side.
- the conductive sheet 1D with metal fittings is composed of the conductive sheet material 2 and the two connection metal fittings 3D that are crimped to the first edge 21 and the second edge 22 of the sheet material 2 in the same manner as the conductive sheet 1A with metal fittings. It has.
- Each of the connection fittings 3 ⁇ / b> D has a crimping part 31 ⁇ / b> D that is crimped to the edge of the sheet material 2.
- the crimping part 31D of the connection fitting 3D includes a pair of plate-like sandwiching parts 311 and 312 sandwiching the edge of the sheet material 2, and a folded part 313 that connects the pair of plate-like sandwiching parts 311 and 312. Furthermore, one of the pair of plate-shaped sandwiching portions 311 and 312 has a strip-shaped recess 314 formed in a strip shape. As shown in FIG. 13, the strip-shaped recess 314 of the crimping portion 31 ⁇ / b> D has the same structure as the strip-shaped recess 314 of the crimping portion 31.
- the crimping part 31D of the connection fitting 3D has a spot compression part 315 in addition to the same structure as the crimping part 31 of the connection fittings 3 and 3A shown above. As shown in FIG. 12, the spot compression part 315 is formed locally in an intermediate region between the folded part 313 and the edges 3110 and 3120 of the plate-like holding parts 311 and 312 on the opposite side.
- the spot compression part 315 is formed in a state where at least a part thereof overlaps with the strip-shaped recess 314.
- the example shown in FIG. 12 is an example in which the entire spot compression portion 315 is formed so as to overlap with the belt-shaped recess 314.
- the spot compression unit 315 is compressed more than the surrounding portion. Furthermore, the spot compression part 315 forms the convex part 3151 with the surface of one side in the thickness direction of a pair of plate-shaped clamping part 311 and 312 which overlapped, and has comprised the recessed part 3152 with the surface of the other side.
- the convex portion 3151 of the spot compression portion 315 is formed on the outer surface of the first plate-like sandwiching portion 311, and the recess portion 3152 of the spot compression portion 315 is formed on the second plate-like sandwiching portion 312. It is formed on the outer surface.
- the convex part 3151 of the spot compression part 315 is formed in the outer surface of the 2nd plate-shaped clamping part 312, and the recessed part 3152 of the spot compression part 315 is formed in the outer surface of the 1st plate-shaped clamping part 311. It is also possible that
- the convex portion 3151 on one surface of the spot compression portion 315 is formed such that the head portion 3153 on the top side is larger in width than the root portion.
- the head part 3153 which is a part of the first plate-like holding part 311 and the bottom outer edge part 3154 of the concave part 3152 which is a part of the second plate-like holding part 312 which overlaps with the head part 3153 are engaged.
- the resulting engagement structure results.
- the spot compression part 315 is formed by performing the spot press process using the press 9A with respect to a pair of plate-shaped clamping part 311 and 312 in which the strip
- the press machine 9A has a support portion 91A and a press portion 92A supported so as to be able to approach and separate from the support portion 91A.
- a supporting surface 910A that supports one surface of the pair of plate-shaped sandwiching portions 311 and 312 is formed on the support portion 91A.
- the supporting surface 910A includes a concave supporting surface 912A that supports a portion that becomes the convex portion 3151 of the spot compression portion 315, and a reference supporting surface 911A that supports other portions.
- a convex molding surface 920A that is pressed against the other surface of the pair of plate-shaped sandwiching portions 311 and 312 is formed on the press portion 92A.
- the convex molding surface 920A of the press portion 92A is a surface on which the concave portion 3152 of the spot compression portion 315 is molded.
- the contour of the concave support surface 912A is formed larger than the contour of the root portion of the pair of plate-shaped sandwiching portions 311 and 312 that protrudes to the opposite side of the convex molding surface 920A side.
- the convex part 3151 of the spot compression part 315 is shape
- the spot compression part 315 is a part where one part of the pair of plate-shaped sandwiching parts 311 and 312 and the other part are more firmly bonded. Therefore, if the conductive sheet with metal fittings 1D is employed, the spot compression unit 315 is paired with the sheet material 2 even when a strong external force is applied to the connection metal fittings 3D and when thermal expansion of the connection metal fittings 3D occurs. The reduction of the clamping force of the plate-shaped clamping parts 311 and 312 is prevented.
- the spot compression part 315 is formed so as to overlap with the belt-like concave part 314 having a high degree of adhesion between the pair of plate-like sandwiching parts 311 and 312. Thereby, it can prevent that the crimping
- the convex portion 3151 on one surface of the spot compression portion 315 is formed such that the head portion 3153 on the top side is larger in width than the root portion.
- an engagement structure in which the head section 3153 and the bottom surface outer edge section 3154 that overlaps with the head section 3153 is generated.
- Such a spot compression part 315 prevents the pair of plate-like clamping parts 311 and 312 from loosening in a crimped state, that is, the reduction of the clamping force of the pair of plate-like clamping parts 311 and 312 more reliably.
- FIG. 16 is a front view of a connection fitting 3E according to a fourth application example.
- FIG. 17 is a perspective view showing a state where the bent portion of the connection fitting 3E is formed.
- FIG. 18 is a front view of the connection fitting 3F according to the fifth application example.
- FIG. 19 is a front view of the connection fitting 3G according to the sixth application example.
- connection fittings 3E, 3F, 3G are application examples of the connection fitting 3A in the second embodiment.
- differences between the connection fittings 3E, 3F, and 3G from the connection fitting 3A will be described.
- connection fitting 3E has a crimping portion 31E that is crimped to the edge of the sheet material 2.
- connection fitting 3 ⁇ / b> F has a crimping portion 31 ⁇ / b> F that is crimped to the edge of the sheet material 2.
- connection fitting 3 ⁇ / b> G has a crimping part 31 ⁇ / b> G that is crimped to the edge of the sheet material 2.
- the crimping portions 31E, 31F, and 31G include a pair of plate-shaped sandwiching portions 311 and 312 sandwiching the edge of the sheet material 2, and a folded portion 313 that connects the pair of plate-shaped sandwiching portions 311 and 312.
- 16, 18, and 19 front view are views of the connection fittings 3E, 3F, and 3G as viewed from the folded portion 313 side.
- one of the pair of plate-shaped sandwiching portions 311 and 312 has a strip-shaped recess 314 having the same structure as the strip-shaped recess 314 of the crimping portion 31. 16, 18, and 19 do not show the band-shaped recess 314.
- Each of the crimping portions 31E, 31F, and 31G has bent portions 316, 317, and 318 formed in a bent shape when viewed from the folded-back portion 313 side.
- the bending portion 316 of the crimping portion 31E is formed across the crimping portion 31E along the direction intersecting the longitudinal direction of the strip-shaped recess 314, and forms a step in the crimping portion 31E in the longitudinal direction of the strip-shaped recess 314.
- the bending portion 316 is formed across the crimping portion 31 ⁇ / b> E along the direction orthogonal to the longitudinal direction of the strip-shaped recess 314. Further, in the example shown in FIG. 16, the two bent portions 316 are formed at two locations, a position near one end in the longitudinal direction of the band-shaped recess 314 and a position near the other end in the crimping portion 31E. Yes.
- the bending portion 317 of the crimping portion 31F is formed in a groove shape that crosses the crimping portion 31E along the direction intersecting the longitudinal direction of the strip-shaped recess 314.
- the bent portion 317 is formed in a groove shape that crosses the crimping portion 31 ⁇ / b> F along a direction orthogonal to the longitudinal direction of the strip-shaped recess 314. Furthermore, in the example shown in FIG. 18, the two bent portions 317 are formed at two locations, one near the end in the longitudinal direction of the strip-shaped recess 314 and one near the other end in the crimping portion 31F. Yes.
- the bending portion 318 of the crimping portion 31G is a portion that is curved from a position near one end in the longitudinal direction of the band-shaped recess 314 in the crimping portion 31G to a position near the other end.
- the bending portion 316 of the crimping portion 31E is formed by pressing the crimping portion 31A, in which the band-shaped recess 314 is formed, with a press 9B.
- the press machine 9B has a first mold 91B and a second mold 92B supported so as to be able to approach and separate from the first mold 91B.
- the first mold 91B is formed with a support surface 910B that supports one surface of the pair of plate-shaped sandwiching portions 311 and 312.
- the support surface 910B includes a first molding surface 911B that molds the bent portion 316 and a first support surface 912B that supports a portion other than the bent portion 316 in the crimping portion in its original shape.
- a support surface 920B that supports the other surface of the pair of plate-shaped sandwiching portions 311 and 312 is formed on the second mold 92B.
- the supporting surface 920B includes a second forming surface 921B for forming the bent portion 316 and a second supporting surface 922B that supports a portion other than the bent portion 316 in the crimping portion in its original shape.
- the bent portion 316 is formed by sandwiching the folded portion 313 and the pair of overlapping plate-shaped sandwiching portions 311 and 312 between the support surface 910B of the first mold 91B and the support surface 920B of the second mold 92B. Is done.
- the bent portion 317 of the crimping portion 31F and the bent portion 318 of the crimping portion 31G are formed in the same manner.
- the bent portions 316, 317, and 318 are caused by external force and thermal expansion, as in the spot compression portion 315 shown in FIGS. This prevents the holding force of the pair of plate-like holding portions 311 and 312 with respect to the sheet material 2 from being lowered.
- connection fittings 3, 3A, 3D, 3E, 3F, and 3G the edges 3110 and 3120 of the pair of plate-shaped sandwiching portions 311 and 312 are formed in a warped shape, and the edges 3110 and 3120 are chamfered. Or rounding may be performed.
- the chamfering or rounding of the edge portions 3110 and 3120 is performed in a range from the end surface of the edge portions 3110 and 3120 to the inner surface on the side in contact with the sheet material 2. Also by this chamfering process or rounding process, the sheet material 2 can be prevented from being caught by the edges 3110 and 3120 of the pair of plate-shaped holding parts 311 and 312 and torn.
- the conductive sheet with metal fittings according to the present invention can be freely combined with each of the above-described embodiments and application examples within the scope of the invention described in each claim, or each of the embodiments and application examples as appropriate. It is also possible to configure by deforming or omitting a part.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Clamps And Clips (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
Description
(1)第1の構成要素は、導電性のシート材である。
(2)第2の構成要素は、上記シート材の縁部に圧着された圧着部を有し、上記シート材と他の部材とを電気的に接続する接続金具である。上記圧着部は、板状部分が折り返されることにより形成された部分である。上記圧着部は、上記シート材の縁部を挟み込んだ一対の板状挟持部と、上記一対の板状挟持部を繋ぐ折り返し部と、を備える。一対の上記板状挟持部の少なくとも一方は、上記折り返し部とその反対側における上記板状挟持部の縁部との間の中間領域の外表面に、上記シート材に対して他の部分よりも強く圧着されたことによって帯状に形成された帯状凹部を有する。
まず、図1,2を参照しつつ、第1実施形態に係る金具付導電シート1の構成について説明する。図2は、図1におけるII-II平面での断面図である。
導電性のシート材2は、例えば金属布又は金属箔などである。金属布は、例えば銅を主成分とする金属の糸が縦方向及び横方向に交差して織られた網目構造を有する生地である。また、金属布は、金属糸の生地に樹脂材料からなる柔軟性を有するフィルムが貼り付けられた構造を有する場合もある。金属布は、軽量で柔軟性に優れており、さらに、金属箔などに比べて曲げ変形時の耐久性及び通気性に優れている。
接続金具3は、シート材2と他の導電部材とを電気的に接続する金具である。シート材2に圧着された接続金具3は、例えば、金属板に対する曲げ加工及びプレス加工によって得られる。接続金具3の材料は、例えば、銅の合金、鉄又はステンレスなどである。また、接続金具3が、銅などを主成分する芯金部とその芯金部の表面に形成された錫メッキとを含むことも考えられる。
金属の板状部分が折り返されることにより形成された圧着部が、シート材2の縁部を挟み込む状態でシート材2に圧着される場合、いわゆるスプリングバック現象が生じる。そのため、接続金具3の圧着部31が圧着機9で圧縮されているときよりも圧着機9による加圧が除かれたときの方が、シート材2に対する圧着部31の圧着状態が緩む。
次に、図5~8を参照しつつ、第2実施形態に係る金具付導電シート1A及びそれを含むワイヤハーネス10について説明する。図5は金具付導電シート1Aの平面図である。図6は金具付導電シート1Aの正面図である。図7は金具付導電シート1Aを備えるワイヤハーネス10の分解平面図である。図8はワイヤハーネス10の端部の側面図である。図5~8において、図1,2に示される構成要素と同じ構成要素は、同じ参照符号が付されている。
金具付導電シート1Aが採用されれば、金具付導電シート1が採用される場合と同様の効果が得られる。
次に、図9を参照しつつ、金具付導電シート1,1Aに適用可能な第1応用例に係る接続金具の圧着構造について説明する。図9は、第1応用例に係る圧着部31Aの部分の断面図であり、図2に相当する図である。
次に、図10を参照しつつ、金具付導電シート1,1Aに適用可能な第2応用例に係る接続金具の圧着構造について説明する。図10は、第2応用例に係る圧着部31Bの部分の断面図であり、図2,9に相当する図である。
次に、図11を参照しつつ、金具付導電シート1,1Aに適用可能な第3応用例に係る接続金具の圧着構造について説明する。図11は、第3応用例に係る圧着部31Cの部分の断面図であり、図2に相当する図である。
次に、図12~15を参照しつつ、第3実施形態に係る金具付導電シート1Dについて説明する。図12は金具付導電シート1Dの平面図である。図13は金具付導電シート1Dにおける接続金具の圧着部31Dの部分の断面図である。図14は金具付導電シート1Dにおける接続金具3Dのスポット圧縮部315の部分の断面図である。図15は金具付導電シート1Dにおける成形中のスポット圧縮部315の部分の断面図である。
次に、図16~19を参照しつつ、金具付導電シート1,1A,1Dに適用可能な第4~6応用例に係る接続金具の圧着構造について説明する。図16は第4応用例に係る接続金具3Eの正面図である。図17は接続金具3Eの曲げ部が成形される様子を示す斜視図である。図18は第5応用例に係る接続金具3Fの正面図である。図19は第6応用例に係る接続金具3Gの正面図である。
接続金具3,3A,3D,3E,3F,3Gにおいて、一対の板状挟持部311,312各々の縁部3110,3120が反った形状に形成される代わりに、縁部3110,3120に面取り加工もしくは丸め加工が施されることも考えられる。
10 ワイヤハーネス
2 シート材
21 シート材の第一縁部
22 シート材の第二縁部
23 シート材の第三縁部
24 シート材の第四縁部
25 シート材の中間部
3,3A,3D,3E,3F,3G 接続金具
3x 圧着前金具
31,31A,31B,31C,31D,31E,31F,31G,31x 圧着部
311,311x 第一板状挟持部
3110,3110x 第一板状挟持部の縁部
312,312x 第二板状挟持部
3120,3120x 第二板状挟持部の縁部
313 折り返し部
313x 曲げ部
314,314A,314B 帯状凹部
3141,3141A,3141B 帯状傾斜面
3142 帯状平坦面
3143,3143B 帯状傾斜面が形成された部分
3144 底の部分
315 スポット圧縮部
3151 スポット圧縮部の凸部
3152 スポット圧縮部の凹部
3153 スポット圧縮部のヘッド部(凸部における根元部よりも頭頂側の部分)
3154 スポット圧縮部の底面外縁部
316,317,318 圧着部の曲げ部
32 接続部
4 ネジ
5 コネクタ付電線群
51 端子付電線
511 端子金具
52 コネクタ
521 電線保持部
522 端子囲み部
53 パッキン
6 固定金具
61 固定金具の開口
62 固定金具の孔
63 固定金具の枠
64 固定金具の固定座
7 筐体
71 筐体の開口
72 端子台
73 筐体の固定座
9 圧着機
9A,9B プレス機
91 下金型
91B 第一金型
910 第一成形面
910A,910B 支面
911A 基準支面
911B 第一成形面
912A 凹状支面
912B 第一支面
919 溝
91A 支持部
92 上金型
92B 第二金型
920 第二成形面
920A 凸状成形面
920B 支面
921 平坦面
921B 第二成形面
922 凸面
9221 凸面の側面
9222 凸面の頭頂面
922B 第二支面
929 欠け部
92A プレス部
92B 第二金型
Claims (12)
- 導電性のシート材と、
板状部分が折り返されることにより形成され前記シート材の縁部に圧着された圧着部を有し、前記シート材と他の部材とを電気的に接続する接続金具と、を備え、
前記圧着部は、
前記シート材の縁部を挟み込んだ一対の板状挟持部と、
前記一対の板状挟持部を繋ぐ折り返し部と、を備え、
一対の前記板状挟持部の少なくとも一方は、前記折り返し部とその反対側における前記板状挟持部の縁部との間の中間領域の外表面に、前記シート材に対して他の部分よりも強く圧着されたことによって帯状に形成された帯状凹部を有する、金具付導電シート。 - 請求項1に記載の金具付導電シートであって、
前記帯状凹部の表面は、
前記帯状凹部の幅方向の端から徐々に深く形成され前記帯状凹部の長手方向に沿う帯状の傾斜面を含む、金具付導電シート。 - 請求項2に記載の金具付導電シートであって、
前記帯状凹部の表面は、
前記帯状凹部の幅方向の両端各々から形成された一対の前記帯状の傾斜面の間において一定の深さで形成され前記帯状凹部の長手方向に沿う帯状の平坦面をさらに含む、金具付導電シート。 - 請求項3に記載の金具付導電シートであって、
前記シート材は、金属糸が交差して織られた網目構造を有する金属布であり、
前記帯状凹部における前記帯状の平坦面は、前記金属布における前記金属糸のピッチよりも大きな幅で形成されている、金具付導電シート。 - 請求項1から請求項3のいずれか1項に記載の金具付導電シートであって、
前記シート材は、金属糸が交差して織られた網目構造を有する金属布である、金具付導電シート。 - 請求項1から請求項5のいずれか1項に記載の金具付導電シートであって、
前記帯状の凹部は、一対の前記板状挟持部の一方にのみ一の直線に沿って形成されている、金具付導電シート。 - 請求項1又は請求項2に記載の金具付導電シートであって、
前記帯状の凹部は、
一対の前記板状挟持部の一方に平行に形成された2列の凹部と、
一対の前記板状挟持部の他方における前記2列の凹部の間の領域に対向する位置に形成された1列の凹部と、を含む、金具付導電シート。 - 請求項1から請求項7のいずれか1項に記載の金具付導電シートであって、
一対の前記板状挟持部は、前記折り返し部とその反対側における前記板状挟持部の縁部との間の中間領域の局所に、周囲の部分よりも圧縮されており重なった一対の前記板状挟持部の厚み方向における一方の側の面で凸部を成し他方の側の面で凹部を成すスポット圧縮部をさらに有する、金具付導電シート。 - 請求項8に記載の金具付導電シートであって、
前記スポット圧縮部は、前記帯状凹部と重なって形成されている、金具付導電シート。 - 請求項8又は請求項9に記載の金具付導電シートであって、
前記スポット圧縮部における一方の側の面の前記凸部は、根元部分よりも頭頂側の部分の方が大きな幅で形成されている、金具付導電シート。 - 請求項1から請求項7のいずれか1項に記載の金具付導電シートであって、
前記圧着部は前記折り返し部側から見て曲がった形状に成形された曲げ部を有する、金具付導電シート。 - 請求項1から請求項11のいずれか1項に記載の金具付導電シートであって、
一対の前記板状挟持部各々における前記折り返し部に対して反対側の縁部は、前記シート材側に対して反対側へ反った形状に形成されている、金具付導電シート。
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DE112014003718.4T DE112014003718T5 (de) | 2013-08-12 | 2014-07-22 | Elektrisch leitfähiges Flächengebilde mit Beschlag |
US14/911,616 US9490551B2 (en) | 2013-08-12 | 2014-07-22 | Fitting equipped electrically conductive sheet |
CN201480044227.4A CN105453349B (zh) | 2013-08-12 | 2014-07-22 | 带有配件的导电片 |
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JP2013265767A JP6024650B2 (ja) | 2013-08-12 | 2013-12-24 | 金具付導電シート |
JP2013-265767 | 2013-12-24 |
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JP (1) | JP6024650B2 (ja) |
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US9963957B2 (en) * | 2015-02-20 | 2018-05-08 | Flowco Production Solutions, LLC | Clutch assembly for bypass plungers |
CA2921175C (en) | 2015-02-20 | 2023-09-26 | Flowco Production Solutions, LLC | Improved dart valves for bypass plungers |
US11578570B2 (en) * | 2015-02-20 | 2023-02-14 | Flowco Production Solutions, LLC | Unibody bypass plunger and valve cage with sealable ports |
US10669824B2 (en) * | 2015-02-20 | 2020-06-02 | Flowco Production Solutions, LLC | Unibody bypass plunger and valve cage with sealable ports |
JP6900931B2 (ja) * | 2018-04-16 | 2021-07-14 | 株式会社オートネットワーク技術研究所 | 金具付導電シート |
US20220056785A1 (en) * | 2018-09-13 | 2022-02-24 | Flowco Production Solutions, LLC | Unibody bypass plunger with integral dart valve cage |
JP7356123B2 (ja) * | 2019-03-25 | 2023-10-04 | 日本圧着端子製造株式会社 | 導電性布体用コネクタ |
WO2020218520A1 (ja) * | 2019-04-26 | 2020-10-29 | 積水ポリマテック株式会社 | 電気接続部材、及び端子付きガラス板構造 |
JP6957568B2 (ja) * | 2019-08-09 | 2021-11-02 | 株式会社オートネットワーク技術研究所 | 端子付き電線 |
JP6936836B2 (ja) | 2019-08-09 | 2021-09-22 | 株式会社オートネットワーク技術研究所 | 端子付き電線 |
JP7443911B2 (ja) | 2020-04-22 | 2024-03-06 | 株式会社オートネットワーク技術研究所 | 金属板付導電性シート |
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US9490551B2 (en) | 2016-11-08 |
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CN105453349A (zh) | 2016-03-30 |
US20160190712A1 (en) | 2016-06-30 |
JP2015057758A (ja) | 2015-03-26 |
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