WO2017164006A1 - Fil électrique équipé d'un tube thermorétrécissable, procédé de fabrication d'un fil électrique équipé d'un tube thermorétrécissable, et outil de fixation de tube thermorétrécissable - Google Patents

Fil électrique équipé d'un tube thermorétrécissable, procédé de fabrication d'un fil électrique équipé d'un tube thermorétrécissable, et outil de fixation de tube thermorétrécissable Download PDF

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Publication number
WO2017164006A1
WO2017164006A1 PCT/JP2017/010165 JP2017010165W WO2017164006A1 WO 2017164006 A1 WO2017164006 A1 WO 2017164006A1 JP 2017010165 W JP2017010165 W JP 2017010165W WO 2017164006 A1 WO2017164006 A1 WO 2017164006A1
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WO
WIPO (PCT)
Prior art keywords
heat
shrinkable tube
electric wire
tube
core wire
Prior art date
Application number
PCT/JP2017/010165
Other languages
English (en)
Japanese (ja)
Inventor
松藤　茂雄
須藤　博
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2017164006A1 publication Critical patent/WO2017164006A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • 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
    • H01R4/70—Insulation of connections
    • H01R4/72—Insulation of connections using a heat shrinking insulating sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors

Definitions

  • This invention relates to a technique for attaching a heat-shrinkable tube to a terminal-attached electric wire.
  • Patent document 1 suppresses that the adhesive (hot melt) provided inside the heat shrinkable tube flows into the mating connection end of the terminal when the heat shrinkable tube is attached to the connection portion between the electric wire and the terminal. The technique for doing is disclosed.
  • Patent Document 1 a heat shrinkable tube is assembled to a terminal by using a heat shrinkable tube assembling jig.
  • Patent Document 1 discloses a process in which a terminal is fitted in a terminal fitting recess of a lower frame, and a core wire crimping portion of a terminal from which a heat shrinkable tube having hot melt is led out from the lower frame.
  • a step in which one end of the tube is brought into contact with the damming wall portion of the lower frame, a step in which the upper frame connected to the lower frame covers the terminal fitting recess, and a clamp lever provided on the base Discloses a method for assembling a heat-shrinkable tube comprising the step of sandwiching the lower frame and the upper frame.
  • an object of the present invention is to provide a technique for easily and inexpensively suppressing the flow of the adhesive into the mating connection portion.
  • the first aspect is a wire with a heat-shrinkable tube in which a heat-shrinkable tube is attached to a terminal-attached wire, and an electric wire having a core wire portion and an insulating coating that covers the core wire portion;
  • a core wire connection portion connected to the core wire portion exposed from the insulating coating at an end of the electric wire, a counterpart connection portion having a shape connectable to a connection counterpart, and the core wire connection portion and the counterpart connection
  • a terminal having a connecting part for connecting parts, and a heat shrinkable tube attached to the core wire part exposed to the outside and the core wire connecting part via an adhesive, and the heat shrinking to the connecting part
  • An attachment port for attaching the facing part is formed so as to face one end of the tube, and the peripheral part of the attachment port is closer to the wire than the edge on the counterpart connection side, Heat shrink tube The one end portion is arranged.
  • the second aspect is an electric wire with a heat shrinkable tube according to the first aspect, wherein the one end of the heat shrinkable tube forms a flat surface.
  • a third aspect is an electric wire with a heat-shrinkable tube according to the first or second aspect, and the attachment port is a through hole that penetrates the connecting portion.
  • the fourth aspect is an electric wire with a heat-shrinkable tube according to the third aspect, wherein the through hole extends in a connecting direction in which the counterpart connection part and the core wire connection part are arranged.
  • a 5th aspect is an electric wire with a heat contraction tube which concerns on any one of the 1st-4th aspect,
  • the said core wire connection part and the said other party connection part are separate bodies, A connection member is used.
  • the counterpart connection portion is coupled to the core wire connection portion via the via.
  • the sixth aspect is an electric wire with a heat-shrinkable tube according to any one of the first to fifth aspects, wherein the attachment port is a groove extending in the width direction of the connecting portion.
  • the seventh aspect includes a core wire portion and an electric wire having an insulation coating covering the core wire portion, a core wire connection portion connected to the core wire portion exposed from the insulation coating at the end of the electric wire, and a connection Thermal contraction in which a heat-shrinkable tube is attached to a terminal-attached electric wire having a mating side connecting part having a shape connectable to the mating part, and a terminal having a connecting part for connecting the core wire connecting part and the mating side connecting part.
  • a method for producing an electric wire with a tube comprising: (a) inserting the core wire connecting portion into a heat shrinkable tube having an inner periphery coated with an adhesive; and (b) an opposing portion of the heat shrinkable tube.
  • an eighth aspect is a method of manufacturing an electric wire with a heat-shrinkable tube according to the seventh aspect, wherein the attachment port is a through hole that penetrates the connecting portion, and the step (b) includes the step The process which makes a facing part the state connected with the insertion piece inserted in the said through-hole is included.
  • a ninth aspect is a method for manufacturing an electric wire with a heat-shrinkable tube according to the seventh or eighth aspect, wherein the step (d) includes connecting the one end of the heat-shrinkable tube to the terminal and the base. And fixing the one end to the terminal.
  • the tenth aspect includes a core wire portion and an electric wire having an insulation coating that covers the core wire portion, a core wire connection portion connected to the core wire portion exposed from the insulation coating at an end of the electric wire, and a connection Adhesive is applied to the inner periphery of the terminal-attached electric wire having a counterpart connection portion having a shape connectable to the counterpart, and a terminal having a connecting portion for connecting the core wire connection portion and the counterpart connection portion.
  • a heat-shrinkable tube mounting jig used when attaching the heat-shrinkable tube, and an insertion piece inserted into the attachment port formed in the connecting portion, and the insertion piece inserted into the attachment port. And a counter part attached to the connecting part.
  • the electric wire with a heat-shrinkable tube it is possible to easily attach the facing portion that suppresses the outflow of the adhesive to the mating connection portion simply by providing the terminal with an attachment port. For this reason, the same facing portion can be used for a plurality of types of terminals having different shapes. Therefore, the cost for mounting the heat shrinkable tube can be reduced.
  • the adhesive can be formed into a flat surface by the surface of the facing portion coming into contact with the heat-shrinkable tube. Therefore, it can suppress that the adhesive agent which flowed out from the heat contraction tube and solidified interferes with another member.
  • the opposing portion can be attached while being easily positioned on the connecting portion via the through hole.
  • the electric wire with a heat-shrinkable tube according to the fourth aspect, it is possible to adjust the position where the facing portion is attached with respect to the connecting direction.
  • the core wire connecting portion can be inserted into the heat-shrinkable tube in a state where the mating side connecting portion is not connected. This facilitates the mounting operation of the heat-shrinkable tube.
  • the opposing portion can be easily positioned while being positioned on the connecting portion.
  • the method for manufacturing the electric wire with a heat-shrinkable tube according to the seventh aspect it is possible to easily attach the facing portion that suppresses the outflow to the counterpart connection portion of the adhesive only by providing the terminal with an attachment port. For this reason, the same facing portion can be used for a plurality of types of terminals having different shapes. Therefore, the cost for mounting the heat shrinkable tube can be reduced.
  • the opposing portion can be attached to the connecting portion while being easily positioned through the through hole.
  • the method for manufacturing the electric wire with a heat-shrinkable tube according to the ninth aspect, it is possible to easily maintain a state in which the end surface of one end of the terminal is in contact with the facing portion.
  • the heat-shrinkable tube mounting jig it is possible to easily mount the facing portion that suppresses the outflow of the adhesive to the mating connection portion only by providing the mounting port on the terminal. For this reason, the same facing portion can be used for a plurality of types of terminals having different shapes. Therefore, the cost for mounting the heat shrinkable tube can be reduced.
  • Drawing 1 is a top view showing electric wire 1 with a heat contraction tube concerning a 1st embodiment.
  • FIG. 2 is a perspective view showing the terminal-attached electric wire 10 and the heat-shrinkable tube attachment jig 30 according to the first embodiment.
  • FIG. 3 is a perspective view showing a state in which the heat-shrinkable tube attachment jig 30 is attached to the terminal-attached electric wire 10 according to the first embodiment.
  • FIG. 4 is a perspective view showing the heat shrinkable tube mounting jig 30 according to the first embodiment.
  • FIG. 5 is a perspective view showing the vicinity of one end surface 18E of the heat-shrinkable tube 18 after being contracted.
  • the heat shrinkable tube-attached electric wire 1 includes a terminal-attached electric wire 10 and a heat-shrinkable tube 18.
  • the electric wire with terminal 10 includes an electric wire 12 and a terminal 20.
  • the electric wire 12 includes a core wire portion 14 and a covering portion 16 formed around the core wire portion 14.
  • the core wire portion 14 is formed in a linear shape from a conductive material such as copper, copper alloy, aluminum, or aluminum alloy.
  • the core wire portion 14 has a configuration in which a plurality of strands are twisted together.
  • the core wire part may be comprised by the single wire.
  • the covering portion 16 is formed by extruding the insulating resin material around the core wire portion 14 by an extrusion device or the like.
  • the core wire portion 14 is exposed at the distal end portion of the electric wire 12, and an exposed core wire portion 14a having a predetermined length is formed.
  • the terminal 20 is a member formed by, for example, pressing a plate material formed of copper or a copper alloy. Tin plating or the like may be applied to the surface of the terminal 20.
  • the terminal 20 includes a counterpart connection part 22, a wire connection part 24, and a connection part 28.
  • the counterpart connection part 22 and the wire connection part 24 are connected in a straight line via the connecting part 28.
  • the direction in which the counterpart connection portion 22 and the wire connection portion 24 are arranged is referred to as a coupling direction.
  • a direction orthogonal to the connecting direction is referred to as a width direction.
  • the counterpart connection part 22 is formed in a plate shape.
  • the counterpart connection portion 22 is formed in an elliptical plate shape.
  • the mating side connection part 22 may be formed in a circular plate shape, a square plate shape, or the like.
  • a hole 22 h is formed in the mating side connection portion 22. Bolts are inserted into the holes 22h.
  • the hole 22h is formed in a circular shape, but the shape is not limited to this.
  • a ground terminal is assumed as the terminal 20.
  • the electric wire connecting portion 24 includes a core wire crimping portion 25 and a covering crimping portion 26.
  • a coated crimping portion 26 is formed on the opposite side of the core wire crimping portion 25 from the counterpart connection portion 22.
  • the core wire crimping portion 25 has a configuration in which a pair of crimping pieces are extended and formed on both side portions of the bottom portion. And a pair of crimping pieces are caulked to the exposed core wire portion 14a in a state where the exposed core wire portion 14a is disposed on the bottom portion.
  • the cover crimping portion 26 is configured such that a pair of crimping pieces are extended and formed on both side portions of the bottom portion.
  • the bottom of the cover crimping portion 26 is continuous with the bottom of the core wire crimping portion 25.
  • the pair of crimping pieces are caulked to the covering portion 16 in a state where the end portion of the covering portion 16 is disposed on the bottom portion of the covering crimping portion 26. Thereby, the end portion of the electric wire 12 is connected to the electric wire connecting portion 24 of the terminal 20.
  • the covering crimping part 26 may be omitted.
  • the exposed core portion may be connected to the electric wire connecting portion 24 by ultrasonic welding, resistance welding, soldering, or the like.
  • the connecting portion 28 is formed in a plate shape, and connects the mating connecting portion 22 and the bottom of the wire connecting portion 24.
  • the counterpart connection part 22 and the connecting part 28 extend in the same plane.
  • the connection part 28 is formed more narrowly than the other party connection part 22, this is not essential.
  • the heat shrinkable tube 18 is a member that covers the connecting portion 11 between the terminal 20 and the electric wire 12.
  • the heat shrinkable tube 18B before heat shrinkage (hereinafter, simply referred to as the heat shrinkable tube 18B is referred to as the heat shrinkable tube 18 after heat shrinkage) covers the connection portion 11 and heat shrinks, A shrink tube 18 is formed.
  • the heat-shrinkable tube 18B is obtained by cooling a resin member formed into a tubular shape by extrusion after being stretched into a thick tubular shape in a heated state.
  • the heat-shrinkable tube 18B thus obtained has a shape memory characteristic that, when heated, shrinks to a thin tubular shape before being stretched.
  • the heat-shrinkable tube 18 is heat-shrinked in a shape corresponding to the outer shape of the connection part 11 and is in close contact with the surface of the connection part 11 as much as possible.
  • a hot melt 19 is provided as a water stopping agent inside the heat shrinkable tube 18B.
  • the hot melt 19 is formed on the entire inner peripheral surface of the heat shrinkable tube 18B.
  • the excess hot melt 19 that does not fit in the gap may protrude from the end of the heat-shrinkable tube 18.
  • the excess hot melt 19 protrudes outward from the end portion of the heat shrinkable tube 18 on the covering portion 16 side.
  • the heat shrinkage is performed using a heat shrinkable tube mounting jig 30 which will be described later, thereby suppressing the hot melt 19 from protruding.
  • thermosetting water-stopping agent in addition to the hot melt 19, a thermosetting water-stopping agent, a moisture-curing water-stopping agent, or the like may be used. In these cases, a water-stopping agent may be applied to the connection portion 11 in advance.
  • a bolt is inserted into a hole and a hole 22h formed in a connection target part (for example, a ground connection part), and a nut is tightened from the opposite side.
  • the other party connection part 22 is inserted
  • the counterpart connection part 22 is fixed in a fixed posture with respect to the connection target part, and the counterpart connection part 22 comes into contact with the connection target part, the bolt and the nut, so that the terminal 20 is electrically connected to the connection target part. Connected.
  • the heat shrinkable tube mounting jig 30 includes a facing portion 32 and a fixing base 35.
  • the facing portion 32 is a portion that is attached to the connecting portion 28 so as to face one end surface 18E that is an end surface of one end portion of the heat shrinkable tube 18B.
  • the facing portion 32 is a plate-like member here.
  • the facing portion 32 has a facing surface 32S that is one main surface on the side facing the one end surface 18E.
  • the facing surface 32S is a flat surface.
  • a pair of fixing parts 33 for connecting the opposing part 32 to the fixing base 35 is provided at the lower end of the other surface of the opposing part 32.
  • the hot melt 19 may be less likely to adhere to the facing surface 32S by applying Teflon (registered trademark) processing or the like to the facing surface 32S of the facing portion 32.
  • Teflon registered trademark
  • the entire facing portion 32 may be formed of Teflon.
  • the fixed base 35 is a substantially plate-shaped part, and a substantially rectangular parallelepiped column part 36 is provided on the upper surface thereof.
  • the column portion 36 is provided in a posture to stand up from the upper surface of the fixed base 35.
  • each of the pair of fixing portions 33 includes a rectangular parallelepiped portion 331 and a plate-like portion 333.
  • Each of the plate-like portions 333 and 333 is provided on each of the mutually opposing surfaces of the rectangular parallelepiped portion 331.
  • Each of the plate-like portions 333 and 333 extends inward in the width direction from the mutually opposing surfaces of the rectangular parallelepiped portions 331 and 331.
  • a through hole 28h (attachment port) is formed in the center of the connecting portion 28 in the width direction, and the column portion 36 is inserted into the through hole 28h.
  • the column portion 36 corresponds to an insertion piece inserted into the through hole 28h.
  • the opening shape of the through hole 28h (the shape of the attachment port) is substantially the same as the outer shape of the column portion 36, and is rectangular here.
  • the opening shape of the through hole 28h is not particularly limited, but is preferably not circular.
  • the facing portion 32 is attached to the connecting portion 28 via a pillar portion 36 (insertion piece) inserted into the through hole 28h (attachment port). That is, the plate-like portions 333 and 333 provided in the fixing portion 33 of the facing portion 32 are inserted into the slit grooves 37 and 37 of the column portion 36, respectively, so that the facing portion 32 is connected to the fixing base 35. (See FIG. 3). In a state where the facing portion 32 is connected to the fixed base 35, the facing portion 32 is supported by the column portion 36 by the back surface of the facing portion 32 coming into contact with one surface of the column portion 36. However, it is not essential that the facing portion 32 abuts on the column portion 36.
  • the rectangular parallelepiped portion 331 is elongated in the connecting direction to separate the plate-like portions 333 and 333 from the back surface of the facing portion 32.
  • the facing part 32 is arranged at a position closer to the electric wire 12 side by separating from the one surface of the column part 36.
  • FIG. 2 shows, temporary attachment process S1 which attaches the heat-shrinkable tube 18B to the electric wire 10 with a terminal is performed.
  • the tip of the terminal 20 (the mating connection portion 22) is inserted into a heat shrinkable tube 18B in which a hot melt 19 (adhesive) is applied to the inner peripheral portion.
  • the heat shrinkable tube 18B is an electric wire. The position is moved to a position covering the connection portion 24 (connection portion 11). Thereby, the electric wire connection part 24 will be in the state penetrated by the heat contraction tube 18B.
  • an attachment step S ⁇ b> 2 is performed in which the opposing portion 32 of the heat shrinkable tube attachment jig 30 is attached to the connecting portion 28.
  • the column portion 36 provided on the fixed base 35 is inserted into the through hole 28h of the connecting portion 28.
  • the column part 36 is inserted into the through hole 28 h from the back side of the coupling part 28 (the side opposite to the surface side on which the exposed core part 14 a is placed).
  • the plate-like portions 333 of the fixing portions 33 and 33 are respectively inserted into the slit grooves 37 and 37 of the column portion 36 protruding to the front side of the connecting portion 28.
  • the facing portion 32 is attached to the terminal 20.
  • the heat shrinkable tube 18 ⁇ / b> B is moved to the facing portion 32, and the one end surface 18 ⁇ / b> E of the heat shrinkable tube 18 ⁇ / b> B is brought into contact with the facing surface 32 ⁇ / b> S of the facing portion 32.
  • the one end surface 18E of the heat shrinkable tube 18B is positioned (positioning step S3).
  • the facing surface 32S of the facing portion 32 has a size capable of contacting a part or the whole of the one end surface 18E of the heat shrinkable tube 18B. For this reason, the width of the facing portion 32 is desirably larger than the lateral width of the terminal 20.
  • one end portion of the heat shrinkable tube 18 ⁇ / b> B is sandwiched between the fixing base 35 and the connecting portion 28. For this reason, one end of the heat shrinkable tube 18B can be fixed to the terminal 20.
  • the fixed base 35 may be placed on the stage 40 and the terminal 20 may be pressed from above. Thereby, the one end part of the heat shrinkable tube 18B can be more firmly fixed (see FIG. 3).
  • a heating step S4 is performed in which the heating device 50 heats the heat shrinkable tube 18B.
  • the heat-shrinkable tube 18B is thermally contracted by the heating step S4.
  • the hot melt 19 in the heat shrinkable tube 18B is softened or melted by the heat from the heating device 50 to fill the gap between the electric wire connecting portion 24 and the heat shrinkable tube 18, and the surplus is provided at both ends of the heat shrinkable tube 18. Try to flow out of.
  • the one end face 18 ⁇ / b> E side of the heat shrinkable tube 18 is in contact with the facing portion 32 of the heat shrinkable tube mounting jig 30. For this reason, the outflow of the hot melt 19 from the one end face 18E side of the heat shrinkable tube 18 is suppressed.
  • contraction is the electric wire 12 side rather than the edge part 281 by the side of the other party connection part 22 among the peripheral parts of the through-hole 28h.
  • it is arranged closer to the electric wire 12h than the entire through hole 28h.
  • the through hole 28h is disposed outside the heat-shrinkable tube 18.
  • one end of the heat shrinkable tube 18 ⁇ / b> B is fixed to the terminal 20.
  • the heat-shrinkable tube 18B can be contracted in a state where the one end face 18E is in contact with the facing portion 32 during the heating process.
  • the hot melt 19 on the one end face 18E side is formed flat by the facing face 32S.
  • the solidified hot melt 19 forms a flat surface 19E on the one end surface 18E side (see FIG. 5).
  • the hot melt 19 can be prevented from flowing out from one end of the heat shrinkable tube 18 ⁇ / b> B only by providing an attachment port (through hole 28 h) for attaching the facing portion 32 to the connecting portion 28.
  • an attachment port through hole 28 h
  • the attachment processing cost of the heat contraction tube 18 can be made inexpensive.
  • the heat-shrinkable tube mounting jig 30 is easy to work because the column portion 36 of the fixing base 35 is inserted into the through hole 28h and the opposing portion 31 is mounted on the column portion 36. For this reason, the production lead time of the electric wire 1 with a heat-shrinkable tube can be shortened.
  • FIG. 6 is a perspective view showing the terminal-attached electric wire 10a according to the second embodiment.
  • An elongated through hole 28ha extending in the connecting direction is formed in the connecting portion 28a of the terminal 20a in the terminal-attached electric wire 10a.
  • the width of the through hole 28ha is substantially the same as the width of the column portion 36, and the column portion 36 can be inserted into the through hole 28ha.
  • the pillar part 36 can be inserted in the arbitrary positions along the connection direction in the through-hole 28ha. As described above, by adjusting the insertion position of the pillar portion 36, the attachment position of the facing portion 32 with respect to the terminal 20 can be adjusted in the coupling direction.
  • the position of the one end surface 18E that abuts against the facing portion 32 can be adjusted.
  • the attachment position of the heat-shrinkable tube 18 in the terminal-attached electric wire 10a can be easily changed in the connecting direction only by changing the shape of the through hole.
  • a peripheral edge portion forming the through hole 28ha corresponds to the attachment portion 29a.
  • the one end face 18E of the heat-shrinkable tube 18 after contraction can be formed at a position overlapping the through hole 28ha (attachment port).
  • the heat-shrinkable tube 18 is attached in a state where the one end face 18E is disposed on the side closer to the electric wire 12 than the edge 281 on the counterpart connection portion 22 side in the peripheral portion of the through hole 28ha.
  • at least a part of the through hole 28ha is arranged outside the heat shrinkable tube 18.
  • FIG. 7 is a perspective view showing the terminal-attached electric wire 10b according to the third embodiment.
  • the electric wire 10b with a terminal the other party connection part 22b is made into a member different from the connection part 28b.
  • Three through-holes 291 are formed at the proximal end portion of the counterpart connection portion 22b, and three through-holes 292 are formed at the distal end portion of the connecting portion 28b.
  • the quantity of the through holes 291 and 292 is not limited to this.
  • the number of through holes 291 and 292 may be one.
  • the through holes 291 are overlapped with the corresponding through holes 292, and the rivets 60 are inserted into the through holes 291 and 292.
  • the rivets 60 are caulked to connect the mating connection portion 22b and the connecting portion 28b.
  • the means for connecting the counterpart connection part to the connection part is not limited to that using the rivet 60.
  • a fitting structure that is fitted to each other or a locking structure that is locked to each other can be employed.
  • the wire connection portion 24 can be easily passed through the heat shrinkable tube 18 during the temporary attachment step S1.
  • the mating side connection part 22b is formed wider than the wire connection part 24, there is a possibility that the heat shrinking tube 18B may be damaged by passing the mating side connection part 22b through the heat shrinking tube 18B. Difficult to install.
  • the electric wire connecting portion 24 can be passed through the heat shrinkable tube 18B first, and then the mating connecting portion 22b can be retrofitted to the connecting portion 28b, so that the heat shrinkable tube 18B is not damaged. Can be installed on.
  • the mating connection part 22b is separate from the electric wire connection part 24, it is easy to apply different metal plating to each. That is, in the case of the terminal-attached electric wire 10 shown in FIG. 1 and the like, when the mating connection portion 22 is subjected to metal plating different from the electric wire connection portion 24, masking treatment (cover the surface with a special chemical component so that the specific portion is not plated). Processing) is required. On the other hand, in the case of the terminal-attached electric wire 10b, the mating side connection portion 22b and the electric wire connection portion 24 can be plated separately, so that the masking process can be omitted. For this reason, the cost increase by the plating process of the terminal 20b can be suppressed.
  • the heat-shrinkable tube attachment jig 30 can be attached to the terminal-attached electric wire 10b to which the counterpart connection portion 22b is attached through the through hole 28h of the connecting portion 28b. For this reason, even if it is a case where the electric wire 10b with a terminal is employ
  • FIG. 8 is a perspective view showing the terminal-attached electric wire 10c and the heat-shrinkable tube attachment jig 30a according to the fourth embodiment.
  • FIG. 9 is a view showing a heat-shrinkable tube mounting jig 30a according to the fourth embodiment and a connecting portion 28c cut along the groove 28g.
  • the heat-shrinkable tube mounting jig 30a is a member formed of an elastic member, and includes a facing portion 32a and a fixing portion 33a.
  • the fixing portion 33a is provided at the lower end portion of the facing portion 32a, and is a portion that fixes the facing portion 32a to the connecting portion 28c of the terminal-attached electric wire 10c.
  • the fixing part 33a is a pair of protrusions projecting inward in the width direction from both the central projecting piece 331a projecting downward from the lower end part of the opposing part 32a and both side parts of the lower end part of the opposing part 32a. It has a side protrusion piece 332a.
  • the central protruding piece 331a corresponds to an insertion piece inserted into the groove 28g of the connecting portion 28c.
  • Each of the side protruding pieces 332a wraps around the back surface side of the connecting portion 28c, thereby sandwiching both side portions of the connecting portion 28c with the facing portion 32a.
  • a through hole may be formed, and the central protruding piece 331a may be inserted into the through hole.
  • the outer shape of the central protruding piece 331a is substantially the same shape and size as the inner shape of the groove 28g.
  • the opposing part 32a can be positioned regarding a connection direction and a width direction by inserting the center protrusion piece 331a in the groove
  • the center protrusion piece 331a can be firmly positioned in the groove 28g by sandwiching the connecting portion 28c between the side protrusion pieces 332a.
  • the peripheral edge part forming the groove 28g constitutes the attachment part 29b.
  • the opposing portion 32a can be attached while being easily positioned with respect to the terminal-attached electric wire 10c.
  • the positioned facing portion 32a can prevent the hot melt 19 from flowing out from the one end face 18E side of the heat shrinkable tube 18B.
  • FIG. 10 is a front view showing a heat shrinkable tube mounting jig 30b according to the fifth embodiment.
  • each of the side protruding pieces 332b of the fixed portion 33b is connected to the facing portion 32a via a hinge (not shown).
  • Each of the side protruding pieces 332b is fixed at a position indicated by a solid line, and rotates to a position indicated by a broken line when the opposing portion 32a is attached to the connecting portion 28.
  • the heat-shrinkable tube mounting jig 30b can be formed of a hard material such as metal.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Insulated Conductors (AREA)

Abstract

L'invention concerne une technique pour supprimer facilement l'afflux d'un adhésif vers une partie de connexion côté homologue à bas coût. Ce fil électrique (1) équipé d'un tube thermorétrécissable comprend un tube thermorétrécissable (18) fixé dans un état rétracté par l'intermédiaire d'un adhésif thermofusible (19) sur une partie d'un fil d'âme (14) dénudée à l'extérieur d'un fil électrique (12) et une partie de sertissage d'un fil d'âme (25) d'une borne (20). Un trou traversant (28h) est formé sur une partie d'accouplement (28) de la borne (20), et sert à fixer une partie en vis-à-vis (32) de manière qu'elle soit en regard d'une extrémité du tube thermorétrécissable (18). Une surface d'extrémité (18E) du tube thermorétrécissable (18) est disposée sur un côté, parmi les parties de bord périphérique du trou traversant (28h), qui est plus proche du fil électrique (12) qu'une partie bord (281) qui se trouve du côté d'une partie de connexion côté homologue (22).
PCT/JP2017/010165 2016-03-24 2017-03-14 Fil électrique équipé d'un tube thermorétrécissable, procédé de fabrication d'un fil électrique équipé d'un tube thermorétrécissable, et outil de fixation de tube thermorétrécissable WO2017164006A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016059724A JP2017174643A (ja) 2016-03-24 2016-03-24 熱収縮チューブ付電線、熱収縮チューブ付電線の製造方法、及び、熱収縮チューブ取付治具
JP2016-059724 2016-03-24

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CN109638614B (zh) * 2019-01-16 2024-04-09 宁波宏晟智能科技有限公司 一种用于在线材两端装配带台阶端子的穿热缩管机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10289745A (ja) * 1997-04-16 1998-10-27 Sumitomo Wiring Syst Ltd アース用端子金具
JP2005135858A (ja) * 2003-10-31 2005-05-26 Tyco Electronics Raychem Kk 防水型リード、防水型リードの製造方法、および防止型リード製造用の治具
JP2008176970A (ja) * 2007-01-17 2008-07-31 Komatsu Ltd 圧着端子

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10289745A (ja) * 1997-04-16 1998-10-27 Sumitomo Wiring Syst Ltd アース用端子金具
JP2005135858A (ja) * 2003-10-31 2005-05-26 Tyco Electronics Raychem Kk 防水型リード、防水型リードの製造方法、および防止型リード製造用の治具
JP2008176970A (ja) * 2007-01-17 2008-07-31 Komatsu Ltd 圧着端子

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