WO2023276661A1 - 接続端子、および、接続端子付電線 - Google Patents
接続端子、および、接続端子付電線 Download PDFInfo
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- WO2023276661A1 WO2023276661A1 PCT/JP2022/023892 JP2022023892W WO2023276661A1 WO 2023276661 A1 WO2023276661 A1 WO 2023276661A1 JP 2022023892 W JP2022023892 W JP 2022023892W WO 2023276661 A1 WO2023276661 A1 WO 2023276661A1
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- connection terminal
- wire
- electric wire
- barrel portion
- protrusions
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- 230000007704 transition Effects 0.000 claims abstract description 76
- 238000009413 insulation Methods 0.000 claims abstract description 55
- 238000002788 crimping Methods 0.000 claims abstract description 17
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- 238000000576 coating method Methods 0.000 abstract 4
- 230000005540 biological transmission Effects 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000013011 mating Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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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
Definitions
- connection terminals and electric wires with connection terminals relate to connection terminals and electric wires with connection terminals.
- connection terminals are generally used as connection parts of electric wires for transmitting and receiving electricity.
- the connection terminal includes a wire barrel portion for crimping the core wire exposed from the covering portion, and an insulation barrel portion for crimping the covering portion covering the core wire.
- a connection terminal described in Patent Document 1 is known.
- the terminal described in Patent Document 1 is a member formed by pressing a metal plate material that is a conductive plate material, and has a mating connection portion that directly contacts a mating conductor as a mating electrical connection element. and a wire connection portion connected to the mating connection portion.
- the wire connecting portion includes a tip side connecting portion, a core wire crimping portion, an intermediate connecting portion, and a covering crimping portion.
- the tip side connecting portion, the core wire crimping portion, the intermediate connecting portion, and the covering crimping portion are formed in a row along the linear direction.
- it is required that the vibration of the electric wire is hardly transmitted to the crimping portion of the core wire.
- an object of the present disclosure is to make it difficult for the vibration of the electric wire to be transmitted to the portion of the core wire that is crimped to the wire barrel.
- a connection terminal of the present disclosure is a connection terminal including a wire barrel portion, an insulation barrel portion, and a transition portion, wherein the wire barrel portion is an electric wire having a core wire and a covering portion that covers the core wire.
- the core wire exposed from the covering portion can be crimped, the insulation barrel portion can crimp the covering portion, the transition portion connects the wire barrel portion and the insulation barrel portion, and and a connection terminal including at least one convex portion on a surface side facing the electric wire crimped by the wire barrel portion and the insulation barrel portion.
- the electric wire with connection terminal of the present disclosure is a connection terminal including a wire barrel portion, an insulation barrel portion, and a transition portion, wherein the wire barrel portion has a core wire and a covering portion that covers the core wire.
- the core wire exposed from the covering portion of the electric wire can be crimped, the insulation barrel portion can crimp the covering portion, and the transition portion connects the wire barrel portion and the insulation barrel portion.
- a connection comprising: a connection terminal that is connected and includes at least one convex portion on a surface side facing the electric wire to which the wire barrel portion and the insulation barrel portion are crimped; and an electric wire crimped to the connection terminal. It is an electric wire with a terminal.
- FIG. 1 is a perspective view showing an electric wire with a connection terminal according to Embodiment 1 of the present disclosure, disassembled into a connection terminal and an electric wire.
- FIG. 2 is an explanatory view showing a state in which the first projecting portion of the wire barrel portion and the second projecting portion of the insulation barrel portion of the connection terminal of the electric wire with connection terminal according to the first embodiment of the present disclosure are bent.
- 3 is a rear view of the connection terminal according to the first embodiment of the present disclosure;
- FIG. FIG. 4 is a sectional view showing the IV-IV section in FIG.
- FIG. 5 is a sectional view showing a VV section in FIG.
- FIG. 6 is a partially enlarged view showing an enlarged transition portion of the connection terminal according to the second embodiment of the present disclosure;
- FIG. 7 is a partially enlarged view showing an enlarged transition portion of the connection terminal according to the third embodiment of the present disclosure
- FIG. 8 is a cross-sectional view showing a convex portion according to Embodiment 3 of the present disclosure.
- FIG. 9 is a perspective view showing the electric wire with connection terminal according to the modification of the first embodiment of the present disclosure, disassembled into the connection terminal and the electric wire.
- FIG. 10 is a rear view of a connection terminal according to a modification of the third embodiment of the present disclosure;
- FIG. 11 is an explanatory diagram showing a preferred arrangement of a plurality of projections.
- connection terminals and electric wires with connection terminals of the present disclosure are as follows.
- a connection terminal including a wire barrel portion, an insulation barrel portion, and a transition portion, wherein the wire barrel portion is exposed from the covering portion of an electric wire having a core wire and a covering portion covering the core wire.
- the insulation barrel portion can crimp the core wire
- the insulation barrel portion can crimp the covering portion
- the transition portion connects the wire barrel portion and the insulation barrel portion, and the wire barrel and at least one convex portion on the side facing the wire crimped by the insulation barrel portion.
- connection terminal can bring at least one convex portion into contact with the electric wire even in the transition portion.
- a portion for suppressing vibration of the electric wire can be provided between the wire barrel portion and the insulation barrel portion. This suppresses the transmission of vibration to the portion of the core wire of the electric wire that is crimped to the wire barrel portion.
- the transition portion may be gradually inclined in a direction facing the electric wire from the insulation barrel portion toward the wire barrel portion.
- the shape can be gradually deformed from the insulation barrel portion toward the wire barrel portion. This eliminates the need for an abrupt change in the transition section.
- the gradually sloping transition portion is provided with a convex portion for suppressing vibration.
- the number of points of contact with the connection terminal on the electric wire is further increased. This further suppresses the transmission of vibration to the portion of the core wire that is crimped to the wire barrel portion.
- At least two of the plurality of protrusions may be arranged on the same plane perpendicular to the longitudinal direction of the connection terminal.
- the plurality of projections can come into contact with the electric wire on the predetermined plane. Therefore, the vibration of the electric wire is effectively suppressed at the connection terminal.
- At least one of the plurality of protrusions may be arranged at a different position from the other protrusions in the longitudinal direction of the connection terminal.
- the plurality of projections can come into contact with the electric wire at a plurality of locations dispersed in the longitudinal direction of the electric wire. Therefore, the vibration of the electric wire is effectively suppressed at the connection terminal.
- Three or more projections are arranged on the same plane perpendicular to the longitudinal direction of the connection terminal, and the diameter of an imaginary circle passing through the vertexes of the three or more projections is equal to the diameter of the electric wire. It may be equal to or less than.
- the electric wire is pressed by three or more protrusions on the same plane. This further suppresses the transmission of vibration to the portion of the core wire that is crimped to the wire barrel portion.
- the diameter of the electric wire is the diameter of the portion of the electric wire that is in contact with the convex portion.
- an electric wire with a connection terminal of the present disclosure is an electric wire with a connection terminal including any one connection terminal of (1) to (6) and an electric wire crimped to the connection terminal.
- the electric wire with the connection terminal can have at least one convex portion in contact with the electric wire even at the transition portion.
- a portion for suppressing vibration of the electric wire can be provided between the wire barrel portion and the insulation barrel portion. This suppresses the transmission of vibration to the portion of the core wire of the electric wire that is crimped to the wire barrel portion.
- the core wire may be a single core wire.
- the convex portion may come into contact with the core wire or the covering portion.
- connection terminal and the electric wire can be reliably brought into contact with each other at the transition portion. This suppresses the transmission of vibration to the portion of the core wire that is crimped to the wire barrel portion.
- connection terminal and the electric wire with the connection terminal of the present disclosure will be described below with reference to the drawings. It should be noted that the present invention is not limited to these exemplifications, but is indicated by the scope of the claims, and is intended to include all modifications within the meaning and scope of equivalents of the scope of the claims.
- XYZ orthogonal coordinate axes (right-handed system) are appropriately attached to each drawing for explaining the directions.
- the X direction indicates the longitudinal direction of the connection terminal
- the Y direction indicates the width direction of the connection terminal.
- the width direction of the connecting end portion is the direction in which a pair of first projecting portions 11b, which will be described later, are arranged.
- the Z direction is the height direction of the connection terminals, and indicates a direction orthogonal to the X and Y directions.
- one side in the X direction may be called the +X side, and the other side may be called the -X side.
- the +Z side indicates the surface side of the connection terminal that contacts the electric wire
- the -Z side indicates the surface side that does not contact the electric wire of the connection terminal.
- FIG. 1 is a perspective view showing an electric wire 1 with a connection terminal according to an embodiment of the present disclosure, disassembled into a connection terminal 10 and an electric wire 20.
- FIG. The electric wire with connection terminal 1 includes a connection terminal 10 and an electric wire 20 crimped to the connection terminal 10 .
- the electric wire 20 is, for example, a single-core wire.
- the single core wire includes a core wire 21 and a covering portion 22 covering the core wire 21 .
- the covering portion 22 is made of, for example, an insulating material.
- the core wire 21 for example, a core with an extremely small diameter (for example, a cross-sectional area of about 0.05 square millimeters) is used.
- the diameter of electric wires has been reduced due to the demand for weight reduction and miniaturization of the entire apparatus.
- Demand for the electric wire 20 using the core wire 21 with a very small diameter is increasing.
- a single core wire is used instead of a twisted wire when a predetermined strength is to be secured.
- a single-filamentary wire has higher rigidity and higher strength than a stranded wire, even if they have the same diameter.
- the single-core wire has high rigidity, so it also has the characteristic that vibration is easily transmitted. Therefore, when such a single-core wire having a very small diameter is used, it is especially required to devise a method for suppressing vibration.
- the invention of the present disclosure is applicable not only to single core wires but also to twisted wires.
- FIG. 2 is an explanatory diagram showing a state in which the first projecting portion 11b of the wire barrel portion 11 and the second projecting portion 12b of the insulation barrel portion 12 are bent.
- the electric wire 20 is omitted in FIG.
- FIG. 3 is a rear view of the connection terminal 10 according to one embodiment of the present disclosure
- FIG. 4 is a cross-sectional view showing the IV-IV cross section in FIG. 1 together with the virtual circles C1 and C2.
- FIG. 5 is a sectional view showing a VV section in FIG.
- connection terminal 10 is formed by pressing a copper or copper alloy sheet metal, for example.
- the connection terminal 10 includes a wire barrel portion 11 , an insulation barrel portion 12 and a transition portion 13 .
- connection terminal 10 further includes a body portion 14 .
- the body portion 14 is a portion to be fitted with the counterpart terminal.
- the main body may be pin-shaped, tab-shaped, or tubular.
- the main body portion 14 is a tubular portion that fits with the male terminal.
- the wire barrel portion 11 can crimp the core wire 21 exposed from the covering portion 22 of the electric wire having the core wire 21 and the covering portion 22 covering the core wire 21 .
- the wire barrel portion 11 has a first bottom plate portion 11a and a pair of first projecting portions 11b projecting upward from both edges of the first bottom plate portion 11a.
- the insulation barrel portion 12 is capable of crimping the covering portion 22 .
- the insulation barrel portion 12 has a second bottom plate portion 12a and a pair of second projecting portions 12b projecting upward from both end edges of the second bottom plate portion 12a.
- the wire barrel portion 11 and the insulation barrel portion 12 are of open barrel type.
- the tip portions of the pair of first projecting portions 11b are bent toward the center and downward by a crimping machine (not shown).
- the core wire 21 is pressed from above by the deformed pair of bent pieces 11c (see FIG. 2).
- the core wire 21 is held by the first bottom plate portion 11a and the pair of bent pieces 11c surrounding the core wire 21 . Since the first bottom plate portion 11a and the pair of bent pieces 11c are in contact with the periphery of the core wire 21, the core wire 21 and the wire barrel portion 11 are kept in electrical contact.
- the pair of second projecting portions 12b are bent toward the center and downward by a crimping machine (not shown).
- the covering portion 22 is pressed from above by the pair of bent pieces 12c (see FIG. 2) thus deformed.
- the second bottom plate portion 12a and the pair of bent pieces 12c surround the covering portion 22 and hold the covering portion 22.
- the wire 20 is crimped between the wire barrel portion 11 and the insulation barrel portion 12 . Since the insulation barrel portion 12 holds the core wire 21 on the side where the electric wire 20 extends from the wire barrel portion 11, when the electric wire 20 is pulled, the tensile force is unlikely to reach the end portion of the core wire 21.
- the vibration of the electric wire 20 is suppressed by the wire barrel portion 11 , and the vibration is less likely to reach the end of the core wire 21 .
- the lengths of the first projecting portion 11b and the second projecting portion 12b may be different. In this case, the longer end of the first projecting portion 11b and the second projecting portion 12b may be extended to the shorter end and overlapped with the end.
- the transition portion 13 has a substantially U shape in a cross section perpendicular to the longitudinal direction (X direction) (see FIGS. 3 and 4).
- the transition portion 13 is arranged between the wire barrel portion 11 and the insulation barrel portion 12 and connects the wire barrel portion 11 and the insulation barrel portion 12 .
- the transition portion 13 includes a third bottom plate portion 13a and a pair of third projecting portions 13b.
- the third bottom plate portion 13a is interposed between the first bottom plate portion 11a and the second bottom plate portion 12a.
- the transition portion 13 gradually inclines in a direction facing the electric wire 20 from the insulation barrel portion 12 toward the wire barrel portion 11 . That is, since the covering portion 22 covers the core wire 21 , the covering portion 22 is thicker than the core wire 21 . Therefore, the insulation barrel portion 12 is wider and taller than the wire barrel portion 11 both before and after crimping. If the insulation barrel portion 12 is directly connected to the wire barrel portion 11, it is conceivable to provide a suddenly deformed portion such as a stepped portion in order to suddenly change the width and height between them. In that case, it is necessary to forcibly deform the metal plate, and processing may be difficult. By forming the transition portion 13 in a shape that gradually decreases in width and height from the insulation barrel portion 12 toward the wire barrel portion 11, the portion connecting the insulation barrel portion 12 and the wire barrel portion 11 is , can be easily processed without causing excessive deformation.
- the transition portion 13 includes a third bottom plate portion 13a and a pair of third projecting portions 13b.
- the third bottom plate portion 13a has an arcuate cross section (a cross section orthogonal to the longitudinal direction of the terminal), and is provided between the first bottom plate portion 11a and the second bottom plate portion 12a so as to be continuous therewith. be done.
- the second bottom plate portion 12a has a radius of curvature larger than that of the first bottom plate portion 11a, and the radius of curvature of the third bottom plate portion 13a gradually decreases from the second bottom plate portion 12a toward the first bottom plate portion 11a. formed into a shape.
- the pair of third protrusions 13b protrude in the same direction as the pair of first protrusions 11b and the pair of second protrusions 12b from both end edges of the third bottom plate portion 13a.
- the pair of third protrusions 13b may be parallel to each other, or may extend so as to gradually widen toward the distal end side.
- the tip edges of the pair of third projecting portions 13b are positioned closer to the third bottom plate portion 13a than the tip edges of the pair of first projecting portions 11b and the pair of second projecting portions 12b.
- the pair of first projecting portions 11b and the pair of second projecting portions 12b can be bent mainly at positions closer to the distal end than the pair of third projecting portions 13b (see FIG. 2).
- the transition portion 13 includes at least one convex portion 15 on the surface S facing the electric wire 20 (or the core wire 21 ) crimped by the wire barrel portion 11 and the insulation barrel portion 12 .
- the transition portion 13 includes three convex portions 15, as shown in FIGS.
- the number of protrusions 15 may be one, or plural other than three.
- the transition portion 13 include a plurality of convex portions 15 .
- This convex portion 15 is preferably formed by press working. When the connection terminal 10 is formed by press working, the convex portion 15 is formed by being pressed from the surface opposite to the S side, so the concave portion is formed on the surface opposite to the S side.
- connection terminal 10 at least two projections 15A and 15B among the plurality of projections 15 are arranged on the same plane (virtual YZ plane) perpendicular to the longitudinal direction (X direction) of the connection terminal 10. be.
- all three protrusions 15A, 15B, and 15C are arranged on the same plane (YZ plane) perpendicular to the longitudinal direction (X direction) of the connection terminal 10 .
- all three protrusions 15A, 15B, and 15C are arranged at the same position in the longitudinal direction (X direction) of the connection terminal 10 and at different positions in the circumferential direction of the transition section 13 .
- one protrusion 15 is formed at the center of the third bottom plate portion 13a in the width direction, and two protrusions 15 are formed on the pair of third protrusions 13b.
- the vibration of the wire 20 is suppressed by the connection terminal 10 .
- the portion of the electric wire 20 that is crimped to the insulation barrel portion 12 propagates vibration during running. This vibration is suppressed by the transition portion 13 by providing the convex portion 15 as a contact portion with the electric wire 20 .
- connection terminal 10 no material such as anti-corrosion agent exists between the connection terminal 10 and the electric wire 20 . Therefore, a space exists between the transition portion 13 and the electric wire 20 . Specifically, a gap is formed between one convex portion 15 (for example, 15A) in the transition portion 13, another convex portion 15 (for example, 15B) adjacent to the one convex portion 15, and the wire 20.
- the protrusions 15A, 15B, and 15C may hold the electric wire 20 by abutting on the core wire 21, or may abut on the covering portion 22 to hold the electric wire 20.
- the case where the wire 20 is held in contact with the core wire 21 and the case where the wire 20 is held in contact with the covering portion 22 will be described below.
- the plurality of convex portions 15A, 15B, and 15C contact the core wire 21 at different positions in the circumferential direction.
- the directions of vibration transmitted to the electric wire 20 are various, it is expected that any one of the protrusions 15A, 15B, and 15C can effectively contact the core wire 21 from the direction of suppressing the vibration.
- the diameter of the virtual circle C1 passing through the vertices P1, P2, and P3 of the three protrusions 15 shown in FIG. In other words, it is smaller than the diameter of the virtual circle C2 of the core wire 21 of the electric wire 20 when it is not pressed against the projection 15 .
- the core wires 21 of the electric wires 20 are pressed by the three protrusions 15 at positions aligned on the same plane.
- the core wire 21 of the electric wire 20 When the core wire 21 of the electric wire 20 is brought into contact with the convex portion 15 in a virtual circle C1 having a smaller diameter than the virtual circle C2 of the core wire 21, at least one of the tip of the convex portion 15 and the core wire 21 is deformed.
- the core wire 21 is strongly pressed by the protrusion 15 .
- the transition portion 13 is also bent inward with the crimping. It is conceivable that the protrusion 15 may bite into the core wire 21 due to the force of bending the transition portion 13 in this manner. Thereby, the vibration of the electric wire 20 is suppressed.
- the diameter of the virtual circle C1 and the diameter of the virtual circle C2 of the core wire 21 may be the same. Even if the diameter of the virtual circle C ⁇ b>1 and the diameter of the virtual circle C ⁇ b>2 are the same, the electric wire 20 can be firmly fixed by the convex portion 15 .
- the convex portions 15A, 15B, and 15C contact the covering portion 22
- the plurality of convex portions 15A, 15B, and 15C contact the covering portion 22 at different positions in the circumferential direction.
- the directions of vibration transmitted to the electric wire 20 are various, it is expected that any one of the protrusions 15A, 15B, and 15C can effectively contact the covering portion 22 from the direction of suppressing the vibration.
- the diameter of the virtual circle C1 is smaller than the diameter of the virtual circle C2 of the electric wire 20 when it is not supported by the projection 15 (that is, when it is not depressed by the pressing of the projection 15).
- the electric wires 20 are pressed by the three protrusions 15 at positions aligned on the same plane.
- the convex portion 15 abuts on the covering portion 22, for example.
- the covering portion 22 is preferably made of a flexible material such as vinyl chloride or polyethylene.
- connection terminal 10 is not limited to the configuration including the three protrusions 15 on the same plane (YZ plane) perpendicular to the longitudinal direction (X direction) of the connection terminal 10 .
- the projections 15 are not arranged only on the same plane (YZ plane) perpendicular to the longitudinal direction (X direction). , may be arranged at different positions in the longitudinal direction.
- the transition portion 13 may be configured to include one or more convex portions 15 .
- the transition portion 13 includes two or more protrusions 15 and can sandwich the core wire 21 or the covering portion 22. configuration is preferred.
- the transition portion 13 includes the convex portion 15 , the connection terminal 10 can come into contact with the electric wire 20 even at the transition portion 13 . Therefore, a portion for suppressing vibration of the electric wire 20 can be provided between the wire barrel portion 11 and the insulation barrel portion 12 . As a result, transmission of vibration to the portion of the core wire 21 of the electric wire 20 that is crimped to the wire barrel portion 11 is suppressed.
- the projection 15 provided on the transition portion 13 can effectively suppress transmission of vibration in the electric wire 20 .
- the transition section 13 gradually inclines in a direction facing the electric wire 20 from the insulation barrel section 12 toward the wire barrel section 11, for example.
- the shape can be gradually changed from the insulation barrel portion 12 toward the wire barrel portion 11 .
- it since it has a shape that gradually inclines, it does not require processing such as a stepped portion.
- Such a shape is particularly useful for press working in which it is difficult to form a stepped shape.
- the number of protrusions 15 is plural.
- the number of protrusions 15 is not three as described above, but may be two or another plurality.
- the number of protrusions 15 is four or more, the number of contact points with the electric wire 20 increases compared to when the number of protrusions 15 is three, so the vibration of the electric wire 20 is further suppressed.
- the number of protrusions 15 is two, the number of contact points with the electric wire 20 is reduced, but it is preferable to the case of three in that the number of processing steps is reduced. Note that even if there is only one protrusion 15 , as long as there is a contact point with the wire 20 , the vibration of the wire 20 is suppressed.
- FIG. 6 is a partially enlarged view showing an enlarged transition portion 213 of the connection terminal 210 according to the second embodiment of the present disclosure.
- a connection terminal 210 according to the second embodiment includes a transition section 213 instead of the transition section 13 of the first embodiment.
- the transition portion 213 has the same configuration as the transition portion 13 except for the convex portion 215 .
- the description will focus on the configuration related to the convex portion 215 .
- transition portion 213 includes three convex portions 215 .
- the convex portion 215B has, for example, a long shape in the longitudinal direction (X direction) of the connection terminal 210 .
- the projection 215B has a length T1 in the longitudinal direction (X direction) of the connection terminal 210 longer than a length T2 in a direction perpendicular to the longitudinal direction (X direction) of the connection terminal 210 .
- the same configuration is adopted for the convex portions 215A and 215C. As a result, the contact area between the connection terminal 210 and the electric wire 20 is increased. Therefore, the electric wire 20 is effectively held down by the connection terminal 210 . This suppresses vibration of the electric wire 20 during travel.
- the convex portion 215B is long along the longitudinal direction of the electric wire 20, one convex portion 215B can contact the electric wire 20 at different positions along the longitudinal direction of the electric wire 20. Therefore, the lateral vibration transmitted through the electric wire 20 as a medium is effectively suppressed by the convex portion 215 .
- the three protrusions 215 are dispersedly positioned on the plane perpendicular to the longitudinal direction of the connection terminal 210 .
- the number of protrusions 215B may be one or plural.
- FIG. 7 is a partially enlarged view showing an enlarged transition portion 313 of the connection terminal according to the third embodiment of the present disclosure.
- FIG. 8 is a side cross-sectional view showing a cross section of the convex portion 315 according to the third embodiment of the present disclosure from the side of the connection terminal.
- a connection terminal 310 includes a transition section 313 instead of the transition section 13 of the first embodiment.
- the configuration of the transition portion 313 is the same as that of the transition portion 13 except for the convex portion 315 .
- the description will focus on the configuration related to the convex portion 315 .
- the transition portion 313 includes one convex portion 315 .
- the convex portion 315 has, for example, an elongated shape on a plane (YZ plane) perpendicular to the longitudinal direction (X direction) of the connection terminal 310 . That is, the convex portion 315 has an elongated shape along the circumferential direction of the transition portion 313 .
- the projection 315 has a length T4 in a direction perpendicular to the longitudinal direction (X direction) of the connection terminal 310 longer than a length T3 in the longitudinal direction (X direction) of the connection terminal 310 .
- the contact length of the connection terminal 310 with the protrusion 315 is increased in the circumferential direction of the electric wire 20 . Therefore, the effect of suppressing vibration in various directions with respect to the electric wire 20 is enhanced. This suppresses vibration of the electric wire 20 during travel.
- the number of protrusions 315 is not limited to one.
- a plurality of projections 315 may be arranged side by side at intervals in the longitudinal direction (X direction) of the connection terminal 310 .
- the convex portion 315 can come into contact with the electric wire 20 at different positions along the longitudinal direction. Therefore, the lateral vibration transmitted through the electric wire 20 as a medium is effectively suppressed by the convex portion 315 .
- FIG. 9 is a perspective view showing the electric wire with connection terminal 401 according to the modification of the first embodiment, disassembled into the connection terminal 410 and the electric wire 20. As shown in FIG.
- connection terminal 410 differs from the connection terminal 10 of the first embodiment in that it includes a transition portion 413 instead of the transition portion 13 .
- the configuration of the transition portion 413 is the same as that of the transition portion 13 except for the convex portion 415 .
- the description will focus on the configuration related to the convex portion 415 .
- All the projections 15A, 15B, and 15C are arranged on the same plane (YZ plane) perpendicular to the longitudinal direction (X direction) of the connection terminal 10 in the transition section 13 of the first embodiment.
- the connection terminal 410 at least two protrusions 415A and 415C among the plurality of protrusions 415A, 415B and 415C are arranged on the same plane perpendicular to the longitudinal direction of the connection terminal 10 .
- At least one of the plurality of protrusions 415A, 415B, 415C is arranged at a different position from the other protrusions 415A, 415C in the longitudinal direction (X direction) of the connection terminal 410 .
- a plurality of (here, two) protrusions 415A and 415B (or 415B and 415C) can come into contact with the wire 20 at a plurality of locations dispersed in the longitudinal direction of the wire 20 .
- the lateral vibration transmitted through the electric wire 20 as a medium is effectively suppressed by the convex portion 415 . Therefore, the vibration of the wire 20 is effectively suppressed in the connection terminal 10 .
- the two projections 415A and 415C formed on the pair of third projections 13b are arranged at the same position in the longitudinal direction of the connection terminal 410, and the projection 415B formed on the third bottom plate portion 13a is arranged in the longitudinal direction of the connection terminal 410 at a position different from that of the other projections 415A and 415C, here, at a position closer to the insulation barrel portion 12 .
- connection terminal 410 can also be brought into contact with the electric wire 20 even at the transition portion 413 due to the configuration including the convex portion 415 . Therefore, a portion for suppressing vibration of the electric wire 20 can be provided between the wire barrel portion 11 and the insulation barrel portion 12 . Therefore, the effect of suppressing vibration of the connection terminal 410 with respect to the electric wire 20 is enhanced. This suppresses vibration of the electric wire 20 during travel.
- At least two of the plurality of protrusions 415A, 415B, and 415C are arranged at offset positions on the same plane perpendicular to the longitudinal direction (X direction) of the connection terminal 410, so that connection is possible.
- a plurality of projections 415A, 415B, and 415C The wires 20 are contacted at different positions. Therefore, lateral vibration of the electric wire 20 is effectively suppressed by the plurality of protrusions 415A, 415B, and 415C.
- FIG. 10 is a rear view showing a connection terminal 510 according to a modification of the third embodiment.
- the connection terminal 510 differs from the connection terminal 310 of the third embodiment in that the transition section 513 is provided instead of the transition section 313 .
- the configuration of the transition portion 513 is the same as that of the transition portion 313 except for the convex portion 515 .
- the configuration related to the convex portion 515 will be mainly described.
- the transition portion 513 also includes an elongated convex portion 515 on a plane (YZ plane) perpendicular to the longitudinal direction (X direction) of the connection terminal 310 .
- the convex portion 515 is further formed with an uneven shape in its longitudinal direction. Specifically, trough portions 516 and peak portions 517 are alternately formed on the surface S side of the convex portion 515 that contacts the electric wire 20 .
- the valley portion 516 and the peak portion 517 may be singular or plural. Due to such trough portions 516 and peak portions 517 , strongly contacting portions and weakly contacting portions alternately exist around the electric wire 20 . Thereby, the vibration suppressing effect of the electric wire 20 can be further enhanced.
- FIG. 11 is an explanatory diagram showing a preferred arrangement of the virtual circle C1 and the convex portion 15 in the first embodiment.
- the plurality of protrusions 15 may be distributed over the entire area of the virtual circle C1 that is at least a semicircle.
- the three or more protrusions 15 surround the electric wire 20 and extend from between the protrusions 15.
- the wire 20 can be supported so that it does not come off (points P1, P2, and P3 in FIG. 11). As a result, the electric wire 20 can be effectively sandwiched and vibration can be effectively suppressed.
- the apexes of the projections 15 may be arranged at regular intervals on the virtual circle C1.
- the interval between the convex portions 15 is 2 ⁇ /3.
- the interval between the convex portions 15 is 2 ⁇ /X.
- the transition section 13 is described as having a substantially U-shaped cross-section perpendicular to the longitudinal direction (X direction), but the transition section 13 is not limited to this shape.
- the transition section may have a rectangular, circular, or other shape in cross section perpendicular to the X direction.
- connection terminal 10 1,401 Electric wire with connection terminal 10, 210, 310, 410, 510 Connection terminal 11 Wire barrel portion 11a First bottom plate portion 11b First protrusion 11c Bent piece 12 Insulation barrel portion 12a Second bottom plate portion 12b Second protrusion 12c bending pieces 13, 213, 313, 413, 513 transition portion 13a third bottom plate portion 13b third projecting portion 14 body portion 15, 215, 315, 415, 515 convex portion 20 electric wire 21 core wire 22 covering portion 516 valley portion 517 peak Department
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
Description
最初に本開示の実施態様を列記して説明する。
本開示の接続端子、および、接続端子付電線の具体例を、以下に図面を参照しつつ説明する。なお、本発明はこれらの例示に限定されず、請求の範囲によって示され、請求の範囲と均等の意味および範囲内におけるすべての変更が含まれることが意図される。
<接続端子付電線1について>
以下、実施形態1にかかる接続端子付電線について、構造の概略を説明する。図1は、本開示の一実施形態にかかる接続端子付電線1を接続端子10と電線20とに分解して示す斜視図である。接続端子付電線1は、接続端子10と、接続端子10に圧着される電線20とを備える。
以下、実施形態1にかかる接続端子10について、構造の概略を説明する。図2は、ワイヤーバレル部11の第1突出部11bおよびインシュレーションバレル部12の第2突出部12bが折り曲げられた状態を示す説明図である。図2において電線20については省略されている。図3は、本開示の一実施形態にかかる接続端子10の背面図であり、図4は、図1におけるIV-IV断面を、仮想円C1および仮想円C2とともに示す断面図である。図5は、図1におけるV-V断面を示す断面図である。
ワイヤーバレル部11は、芯線21と芯線21を覆う被覆部22とを有する電線のうち被覆部22から露出した芯線21を圧着可能である。ワイヤーバレル部11は、第1底板部11aと、第1底板部11aの両端縁から上方に突出する一対の第1突出部11bとを有する。
トランジション部13は、長手方向(X方向)に垂直な断面において、略U字形状をしている(図3および図4参照)。トランジション部13は、ワイヤーバレル部11とインシュレーションバレル部12との間に配置され、ワイヤーバレル部11とインシュレーションバレル部12とを連結する。より具体的には、トランジション部13は、第3底板部13aと一対の第3突出部13bとを含む。第3底板部13aは、上記第1底板部11aと第2底板部12aとの間に介在している。
<接続端子210について>
図6は、本開示の実施形態2にかかる接続端子210のトランジション部213を拡大して示す部分拡大図である。
図6に示すように、トランジション部213は、3つの凸部215を含む。
<接続端子310について>
図7は、本開示の実施形態3にかかる接続端子のトランジション部313を拡大して示す部分拡大図である。また、図8は、本開示の実施形態3にかかる凸部315の断面を接続端子の側方から示す側断面図である。
トランジション部313は、一つの凸部315を含む。
図9は、実施形態1の変形例にかかる接続端子付電線401を接続端子410と電線20とに分解して示す斜視図である。
図10は、実施形態3の変形例にかかる接続端子510を示す背面図である。接続端子510は、トランジション部313の代わりにトランジション部513を備える点で、実施形態3の接続端子310と相違する。トランジション部513において、凸部515以外の構成は上記トランジション部313と同様構成である。凸部515に係る構成を中心に説明する。
図11は、実施形態1における仮想円C1と凸部15との好ましい配置を示す説明図である。複数の凸部15は、仮想円C1のうち半円以上となる領域全体に分散して配置されてもよい。
10,210,310,410,510 接続端子
11 ワイヤーバレル部
11a 第1底板部
11b 第1突出部
11c 折り曲げ片
12 インシュレーションバレル部
12a 第2底板部
12b 第2突出部
12c 折り曲げ片
13,213,313,413,513 トランジション部
13a 第3底板部
13b 第3突出部
14 本体部
15,215,315,415,515 凸部
20 電線
21 芯線
22 被覆部
516 谷部
517 山部
Claims (9)
- ワイヤーバレル部と、インシュレーションバレル部と、トランジション部とを備える接続端子であって、
前記ワイヤーバレル部は、芯線と前記芯線を覆う被覆部とを有する電線のうち前記被覆部から露出した前記芯線を圧着可能であり、
前記インシュレーションバレル部は、前記被覆部を圧着可能であり、
前記トランジション部は、前記ワイヤーバレル部と前記インシュレーションバレル部とを連結し、かつ、前記ワイヤーバレル部および前記インシュレーションバレル部により圧着される前記電線と対向する面側に少なくとも一つの凸部を含む、接続端子。 - 請求項1に記載の接続端子において、
前記トランジション部は、前記インシュレーションバレル部から前記ワイヤーバレル部に向かって、前記電線と対向する方向に徐々に傾斜する、接続端子。 - 請求項1または請求項2に記載の接続端子において、
前記凸部は、複数個である接続端子。 - 請求項3に記載の接続端子において、
複数の前記凸部のうち、少なくとも二つの前記凸部は、当該接続端子の長手方向に垂直な同一平面に配置される接続端子。 - 請求項3または請求項4に記載の接続端子において、
複数の前記凸部のうち、少なくとも一つの前記凸部は、当該接続端子の長手方向において他の前記凸部と異なる位置に配置される接続端子。 - 請求項3に記載の接続端子において、
当該接続端子の長手方向に垂直な同一平面において、3個以上の前記凸部が配置され、
3個以上の前記凸部の頂点を通過する仮想円の径は、前記電線の径と同等またはそれよりも小さい接続端子。 - 請求項1ないし請求項6のいずれか一つに記載の接続端子と、前記接続端子に圧着された電線と、を備える接続端子付電線。
- 請求項7に記載の接続端子付電線において、
前記芯線は、単芯線である接続端子付電線。 - 請求項7または請求項8に記載の接続端子付電線において、
前記凸部は、前記芯線または前記被覆部と当接する接続端子付電線。
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JPH0515324U (ja) * | 1991-08-06 | 1993-02-26 | 住友電装株式会社 | 端子の圧着構造 |
JPH0517928U (ja) * | 1991-08-12 | 1993-03-05 | 住友電装株式会社 | 端子の圧着構造 |
WO2010026824A1 (ja) * | 2008-09-02 | 2010-03-11 | 住友電装株式会社 | 端子金具、端子金具付き電線、および端子金具付き電線の製造方法 |
JP2010062027A (ja) * | 2008-09-04 | 2010-03-18 | Sumitomo Wiring Syst Ltd | 端子金具及び端子金具に対する電線の接続方法 |
JP2010073486A (ja) * | 2008-09-18 | 2010-04-02 | Sumitomo Wiring Syst Ltd | 端子金具及び端子金具付き電線 |
JP2014165158A (ja) * | 2013-02-28 | 2014-09-08 | Auto Network Gijutsu Kenkyusho:Kk | 端子付き被覆電線及びワイヤーハーネス |
JP2018014313A (ja) * | 2016-07-06 | 2018-01-25 | 株式会社フジクラ | 端子付電線 |
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JPH0515324U (ja) * | 1991-08-06 | 1993-02-26 | 住友電装株式会社 | 端子の圧着構造 |
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WO2010026824A1 (ja) * | 2008-09-02 | 2010-03-11 | 住友電装株式会社 | 端子金具、端子金具付き電線、および端子金具付き電線の製造方法 |
JP2010062027A (ja) * | 2008-09-04 | 2010-03-18 | Sumitomo Wiring Syst Ltd | 端子金具及び端子金具に対する電線の接続方法 |
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JP2018014313A (ja) * | 2016-07-06 | 2018-01-25 | 株式会社フジクラ | 端子付電線 |
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