WO2017068953A1 - Fil électrique à borne et connecteur - Google Patents

Fil électrique à borne et connecteur Download PDF

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Publication number
WO2017068953A1
WO2017068953A1 PCT/JP2016/079367 JP2016079367W WO2017068953A1 WO 2017068953 A1 WO2017068953 A1 WO 2017068953A1 JP 2016079367 W JP2016079367 W JP 2016079367W WO 2017068953 A1 WO2017068953 A1 WO 2017068953A1
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WO
WIPO (PCT)
Prior art keywords
terminal
barrel
core wire
electric wire
mold
Prior art date
Application number
PCT/JP2016/079367
Other languages
English (en)
Japanese (ja)
Inventor
拓次 大塚
平井　宏樹
小野　純一
野村　秀樹
細川　武広
中村　哲也
小林　宏平
能章 山野
貴章 伊藤
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.)
Filing date
Publication date
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 WO2017068953A1 publication Critical patent/WO2017068953A1/fr

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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
    • 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
    • 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
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors

Definitions

  • the present invention relates to an electric wire with a terminal and a connector.
  • Patent Document 1 a barrel portion of a copper terminal fitting is connected by crimping to a front end portion of a covered electric wire in which an aluminum core wire is surrounded by an insulation coating, and a contact portion between the core wire and the terminal fitting is molded with a synthetic resin.
  • a technique for anticorrosion by surrounding in a liquid-tight manner is disclosed.
  • the mold part covers up to the front end of the insulation coating behind the terminal fitting.
  • terminal fittings are formed with an insulation barrel part that is crimped to the insulation coating, and the insulation barrel part has a bending suppression function that suppresses the transmission of the influence of the bending of the coated wire to the wire barrel part.
  • the insulation barrel part is not formed. Therefore, the entire terminal fitting and the mold part can be accommodated in the housing without enlarging the volume of the terminal accommodating chamber formed in the housing.
  • the mold portion is required to have not only a waterproof function but also a function to suppress bending instead of the insulation barrel portion.
  • the conventional mold part is required to be as small as possible in order to be accommodated in the terminal accommodating chamber, it is thin. Therefore, the bending rigidity of the mold part is low and the bending suppressing function of the mold part is insufficient.
  • the present invention has been completed based on the above-described circumstances, and an object thereof is to suppress the influence of the bending of the covered electric wire from reaching the connecting portion between the terminal fitting and the core wire.
  • the electric wire with terminal of the first invention is A coated electric wire having a core wire and an insulating coating surrounding the core wire, the core wire being exposed on the front end side; Terminal fittings, A first barrel portion formed on the terminal fitting and crimped to surround the front end side region of the exposed portion of the core wire; A second barrel portion formed at a position behind the first barrel portion and in front of the insulating coating in the terminal fitting, and crimped so as to surround the rear end region of the exposed portion of the core wire; , A mold part that covers the entire area of the exposed part including the crimping part between the first barrel part and the second barrel part of the core wire, and a mold part that covers the front end part of the insulating coating in a liquid-tight manner,
  • the terminal fitting as a whole and the mold portion are accommodated in a terminal accommodation chamber formed in a housing.
  • the connector of the second invention is A coated electric wire having a core wire and an insulating coating surrounding the core wire, the core wire being exposed on the front end side; Terminal fittings, A first barrel portion formed on the terminal fitting and crimped to surround the front end side region of the exposed portion of the core wire; A second barrel portion formed at a position behind the first barrel portion and in front of the insulating coating in the terminal fitting, and crimped so as to surround the rear end region of the exposed portion of the core wire; , A mold part that covers the entire area of the exposed part including the crimped part between the first barrel part and the second barrel part of the core wire, and a front end part of the insulating coating in a liquid-tight manner, It is characterized in that it includes a housing in which a terminal accommodating chamber for accommodating the entire terminal fitting and the mold part is formed.
  • the second barrel portion is crimped to the exposed portion of the core wire behind the first barrel portion, the covered electric wire is bent and deformed behind the terminal fitting.
  • the deformation of the core wire is prevented or suppressed in the second barrel portion. Therefore, it is possible to prevent or suppress the influence of the bending of the covered electric wire from reaching the crimping portion between the first barrel portion and the core wire.
  • the perspective view of the connector of Example 1 Front view of connector XX sectional view of FIG. Perspective view of electric wire with terminal Side view of electric wire with terminal Cross section of the electric wire with terminal
  • 1st and 2nd invention comprises the terminal main-body part which comprises the said terminal metal fitting, the baseplate part which comprises the said 1st barrel part and the said 2nd barrel part, and continues to the rear end of the base part of the said terminal main-body part, And a caulking piece constituting the first barrel portion and the second barrel portion and extending in pairs from both side edges in the width direction of the bottom plate portion, the bottom plate portion being raised to the base portion It may be in the form.
  • the height difference between the lower surface of the base portion of the terminal main body portion and the lower surface of the region surrounding the first barrel portion and the second barrel portion of the mold portion can be reduced or eliminated. Therefore, even if the shape of the inner wall of the terminal accommodating chamber is flat, the terminal fitting can be accommodated in the terminal accommodating chamber in a stable posture.
  • a cross-sectional area of the core wire in the second barrel portion may be larger than a cross-sectional area of the core wire in the first barrel portion.
  • the caulking piece constituting the first barrel part may be formed with a diameter-enlarged part that is enlarged toward the rear.
  • the contact pressure is increased by increasing the crimping force to the core wire in the first barrel portion, there is a concern that the core wire may bite into the rear end edge of the first barrel portion and break.
  • the encroachment of the core wire with respect to the rear-end edge of a 1st barrel part is relieve
  • the caulking piece constituting the second barrel portion may be formed with an enlarged diameter portion that is enlarged toward the rear.
  • the core wire is damaged by biting into the rear end edge of the second barrel portion.
  • the encroachment of the core wire with respect to the rear-end edge of a 2nd barrel part is relieve
  • the 1st and 2nd invention may be provided in the protrusion part which protruded out of the said housing among the said mold parts, and may be provided with the reinforcement part which raises the rigidity of the said protrusion part.
  • the reinforcement part which raises the rigidity of the said protrusion part.
  • the thickness of the protruding portion that protrudes out of the housing out of the mold portion is thicker than the thickness of the accommodating portion that is accommodated in the terminal accommodating chamber of the mold portion.
  • the said reinforcement part may be comprised. According to this configuration, the rigidity of the mold part can be increased without complicating the shape of the mold part.
  • the connector A of the present embodiment is configured to include the electric wire with terminal 10 and the housing 35.
  • the terminal-attached electric wire 10 is a form in which the covered electric wire 11, the terminal fitting 15, and the molded part 30 are integrated, and constitutes a conductive path that is elongated in the front-rear direction as a whole.
  • the covered electric wire 11 is composed of a core wire 12 made of aluminum or an aluminum alloy and a substantially cylindrical insulating coating 13 surrounding the core wire 12. Although the core wire 12 has a form in which a plurality of strands are bundled, the strands are not shown in FIGS. At the front end portion of the covered electric wire 11, the insulating coating 13 is peeled off by a predetermined length, and the core wire 12 is exposed.
  • a terminal fitting 15 described later is connected to the front end of the exposed portion 14 of the core wire 12 by crimping.
  • the terminal fitting 15 is formed by bending a copper or copper alloy plate material punched into a predetermined shape, and has an elongated shape in the front-rear direction as a whole. As shown in FIGS. 7 and 8, the terminal fitting 15 is composed of a terminal main body portion 16 constituting the front end side region, and a first barrel portion 23F and a second barrel portion 23R constituting the rear end side region. Yes.
  • the terminal body 16 is composed of a box-shaped connecting portion 17 having a rectangular tube shape and a connecting portion 18 connected to the rear end of the box-shaped connecting portion 17.
  • a tab of a mating terminal (not shown) having a male shape is inserted into and connected to the box-shaped connecting portion 17 from the front of the terminal fitting 15.
  • the connecting portion 18 has a form in which a pair of side wall portions 20 are raised from the left and right side edges of the bottom wall portion 19.
  • the bottom wall portion 19 of the connecting portion 18 is continuous with the lower wall portion 21 of the box-like connecting portion 17, and the bottom wall portion 19 and the lower wall portion 21 constitute a base portion 22 of the terminal main body portion 16. is doing.
  • the first barrel portion 23F includes a bottom plate portion 24 elongated in the front-rear direction and a pair of first caulking pieces 27F (the caulking pieces described in claims).
  • the pair of first caulking pieces 27 ⁇ / b> F extend from the front end side region in the circumferential direction (direction intersecting with the length direction of the terminal fitting 15) among both side edges in the width direction (left-right direction) of the bottom plate portion 24.
  • the second barrel portion 23R includes the bottom plate portion 24 and a pair of second caulking pieces 27R (the caulking pieces described in claims).
  • the pair of second caulking pieces 27 ⁇ / b> R extend in the circumferential direction (the direction intersecting the length direction of the terminal fitting 15) from the rear end side region of both side edges in the width direction (left-right direction) of the bottom plate portion 24. is there.
  • the first barrel portion 23F and the second barrel portion 23R are arranged so as to be aligned in the front-rear direction, and the second barrel portion 23R is disposed behind the first barrel portion 23F (that is, the rear end portion of the terminal fitting 15).
  • the bottom plate parts 24 of both the barrel parts 23F and 23R are continuously flush with each other at the same height.
  • the front end portion of the bottom plate portion 24 is connected to the rear end portion of the base portion 22 of the terminal body portion 16 in a step shape. That is, the bottom plate part 24 has a shape in which a region extending over the entire length is raised with respect to the base part 22.
  • Both barrel portions 23F and 23R are crimped to the outer periphery of the exposed portion 14 of the core wire 12 in a non-contact state with the insulating coating 13 by an automatic machine (not shown) called an applicator. At this time, the first barrel portion 23F is crimped to the front end side region of the exposed portion 14 of the core wire 12, and the second barrel portion 23R is crimped to the rear end side region of the exposed portion 14 of the core wire 12.
  • the exposed portion 14 of the core wire 12 placed on the bottom plate portion 24 is bent and deformed so as to surround the first caulking piece 27F and the second caulking piece 27R that make a pair.
  • the exposed part 14 of the core wire 12 and both barrel parts 23F and 23R of the terminal metal fitting 15 are fixed so as to be conductive.
  • the front end portion of the covered electric wire 11 and the terminal fitting 15 are connected in a substantially straight line.
  • the compression rate of the core wire 12 in the first barrel portion 23F (ratio of the cross-sectional area after crimping to the cross-sectional area before crimping of the core wire 12) is, for example, about 50 to 80%, and the core wire 12 in the second barrel portion 23R.
  • the compression ratio is, for example, 70 to 100%.
  • the value of the compression rate of the first barrel portion 23F is smaller than that of the second barrel portion 23R. That is, the cross-sectional area, height dimension, and width dimension of the first barrel portion 23F are smaller than the cross-sectional area, height dimension, and width dimension of the second barrel portion 23R.
  • the difference in compression ratio between the barrel portions 23F and 23R is due to the following reason.
  • the first barrel portion 23F that is crimped to the front side has a function of increasing contact pressure between the core wire 12 and the terminal fitting 15 to ensure contact reliability. Therefore, the compression rate of the core wire 12 in the first barrel portion 23F is reduced, and the contact pressure (adhesion degree) between the first barrel portion 23F and the core wire 12 is increased.
  • the second barrel portion 23 ⁇ / b> R is prevented from affecting the contact portion between the first barrel portion 23 ⁇ / b> F and the core wire 12.
  • the covered electric wire 11 is bent, the exposed portion 14 of the core wire 12 is pressed against the rear end edge of the second barrel portion 23R. Therefore, when the second barrel portion 23R strongly tightens the core wire 12, the outer periphery of the core wire 12 is There is concern about being damaged or damaged. Therefore, in the 2nd barrel part 23R, the compression rate is made larger than the 1st barrel part 23F, and the tightening to the core wire 12 is eased.
  • the first enlarged diameter portion 28F (the enlarged diameter portion described in the claims) along the circumferential direction is formed at the rear end portion of the first caulking piece 27F.
  • the first enlarged-diameter portion 28F has a shape expanded so that the diameter increases toward the rear.
  • the biting of the rear end edge of the first barrel portion 23F with respect to the outer periphery of the core wire 12 is strong, and there is a concern that the core wire 12 may be damaged. Therefore, by forming the first enlarged diameter portion 28F at the rear end edge portion of the first barrel portion 23F, the biting of the rear end edge portion of the first barrel portion 23F with respect to the outer periphery of the core wire 12 is alleviated.
  • the second enlarged portion 28R (the enlarged portion described in the claims) along the circumferential direction is also formed at the rear end portion of the second crimping piece 27R.
  • the second enlarged-diameter portion 28R has a shape that expands toward the rear so that the diameter dimension increases. If the covered electric wire 11 is greatly bent up and down, left and right behind the terminal fitting 15 or if its bending deformation is repeated, the core wire 12 will bite into the rear edge of the first barrel portion 23R and be damaged. Is concerned.
  • the second enlarged diameter portion 28R is formed as a countermeasure against this. By forming the second enlarged diameter portion 28R, the bite of the core wire 12 with respect to the rear end edge of the second barrel portion 23R is alleviated, so that the core wire 12 can be prevented from being damaged.
  • the mold part 30 is formed after the terminal fitting 15 is pressure-bonded to the core wire 12. Molding of the mold part 30 accommodates the entire barrel parts 23F and 23R, the rear end part of the connecting part 18 and the front end part of the insulating coating 13 in the covered electric wire 11 in a known mold (not shown). The molten resin (not shown) is injected into the mold, and the injected molten resin is solidified (cured).
  • the molded mold part 30 includes the whole barrel parts 23 ⁇ / b> F and 23 ⁇ / b> R, the entire exposed part 14 including the crimped part between the barrel parts 23 ⁇ / b> F and 23 ⁇ / b> R of the core wire 12, and the covered electric wire. 11, the front end portion of the region where the insulating coating 13 remains is surrounded in a liquid-tight manner over the entire circumference. Further, a part of the front end portion of the mold portion 30 is accommodated in the connecting portion 18 in front of the first barrel portion 23F.
  • the lower surface (outer surface) of the bottom region that covers the bottom plate portions 24 of both barrel portions 23F and 23R in the mold portion 30 is substantially the same height as the lower surface (outer surface) of the base portion 22 of the terminal body portion 16, more specifically, the base portion The position is slightly higher than the lower surface of 22.
  • the terminal-attached electric wire 10 in which the front end portion of the covered electric wire 11, the terminal fitting 15 and the mold portion 30 are integrated is inserted into the terminal accommodating chamber 36 from the rear of the housing 35.
  • the entire terminal fitting 15 and most of the exposed portion 14 of the core wire 12 excluding the rear end portion are accommodated in the terminal accommodating chamber 36. Therefore, the entire region of the covered wire 11 in which the insulating coating 13 surrounds the core wire 12 is arranged outside the terminal accommodating chamber 36 (housing 35).
  • a region of the mold portion 30 that is housed in the terminal housing chamber 36 and surrounds the entire terminal fitting 15 and the exposed portion 14 of the core wire 12 in a liquid-tight manner is a housing portion 31.
  • a region surrounding the rear end portion of the exposed portion 14 of the core wire 12 and the front end portion of the insulating coating 13 outside the rear of the terminal accommodating chamber 36 (housing 35) in a liquid-tight manner is the protruding portion 32. It has become.
  • the protruding part 32 of the mold part 30 has a function of suppressing the transmission of the influence of the bending to the terminal fitting 15 side when a region behind the mold part 30 of the covered electric wire 11 is bent up and down. ing.
  • a pair of upper and lower reinforcing portions 34 is formed on the protruding portion 32 of the mold portion 30 as reinforcing means for increasing the bending rigidity in the vertical direction of the mold portion 30.
  • the reinforcing portion 34 has a form in which the thickness of the upper surface side of the insulating coating 13 and the thickness of the lower surface side of the insulating coating 13 are made larger than the thickness of the housing portion 31 over substantially the entire length of the protruding amount region.
  • the height dimension of the mold part 30 is larger than that of the accommodating part 31 in the reinforcing part 34 (projecting part 32).
  • the width dimension of the reinforcement part 34 (projection part 32) is the same as the width dimension of the accommodating part 31.
  • the connector A of the first embodiment includes the housing 35 in which the plurality of terminal accommodating chambers 36 are formed, and the plurality of terminal-attached electric wires 10 that are individually inserted into the terminal accommodating chambers 36.
  • the terminal-attached electric wire 10 includes a covered electric wire 11, a terminal fitting 15, and a mold part 30.
  • the covered electric wire 11 has a core wire 12 and an insulating coating 13 surrounding the core wire 12, and the core wire 12 is exposed on the front end side of the covered electric wire 11 (a predetermined length range from the front end of the covered electric wire 11). ing.
  • a first barrel portion 23 ⁇ / b> F and a second barrel portion 23 ⁇ / b> R are formed on the rear end portion of the terminal fitting 15 so as to surround the exposed portion 14 of the core wire 12.
  • the second barrel portion 23 ⁇ / b> R is disposed behind the first barrel portion 23 ⁇ / b> F and ahead of the insulating coating 13. Therefore, the first barrel portion 23F and the second barrel portion 23R are not in contact with the insulating coating 13.
  • the mold part 30 liquid-tightens the front end part of the covered electric wire 11 (that is, the entire exposed part 14 including the crimped part with both the barrel parts 23F and 23R of the core wire 12 and the front end part of the insulating coating 13). Covering. Since the core wire 12 is made of aluminum or an aluminum alloy, the terminal fitting 15 is made of copper or a copper alloy. Therefore, as the anticorrosion means in the contact portion between the core wire 12 and the terminal fitting 15 (both barrel portions 23F and 23R). The contact portion between the core wire 12 and the terminal fitting 15 (both barrel portions 23F, 23R) is surrounded in a liquid-tight manner by a mold portion 30 made of synthetic resin.
  • the outer diameter of the insulating coating 13 is larger than the outer diameter of the core wire 12
  • the outer diameter of the region (protruding portion 32) surrounding the insulating coating 13 in the mold portion 30 is the region surrounding the core wire 12 in the mold portion 30 ( It becomes larger than the accommodating part 31).
  • the two barrel portions 23F and 23R formed at the rear end portion of the terminal fitting 15 do not surround the outer periphery of the insulating coating 13, and surround the outer periphery of the exposed portion 14 of the core wire 12. It has become. That is, the 1st barrel part 23 located in the front side has the function as a means to ensure conduction
  • the role of the second barrel portion 23R located on the rear side prevents the influence of the bending of the covered electric wire 11 from reaching the first barrel portion 23F (conventional wire barrel portion), as in the conventional insulation barrel portion. Or to suppress.
  • the second barrel portion 23 surrounds the core wire 12 instead of the insulating coating 13, the outer diameter is reduced by the thickness of the insulating coating 13 as compared to the case where the outer periphery of the insulating coating 13 is surrounded. ing.
  • the terminal housing chamber 36 accommodates the entire terminal fitting 15 and the front end portion of the mold portion 30 (that is, only the region in front of the front end of the insulating coating 13 in the mold portion 30). Yes. That is, the insulating coating 13 is not accommodated in the terminal accommodating chamber 36. Thereby, the entire region surrounding the terminal fitting 15 in the mold part 30 could be accommodated in the terminal accommodating chamber 36 without increasing the volume (height dimension or width dimension) of the terminal accommodating chamber 36. .
  • the 2nd barrel part 23R is crimped
  • the portion 23R the deformation of the core wire 12 is prevented or suppressed. Therefore, it is possible to prevent or suppress the influence of bending of the covered electric wire 11 from reaching the crimped portion between the first barrel portion 23F and the core wire 12.
  • the cross-sectional area of the core wire 12 in the second barrel portion 23R is larger than the cross-sectional area of the core wire 12 in the first barrel portion 23F. According to this configuration, in the first barrel portion 23F, since the crimping force to the core wire 12 is strong, high contact reliability can be ensured. Moreover, if the bending deformation of the covered electric wire 11 is repeated behind the terminal fitting 15, there is a concern that the core wire 12 may be damaged by biting into the rear end edge of the second barrel portion 23 ⁇ / b> R.
  • the crimping force to the core wire 12 is weaker than that of the first barrel portion 23F in the second barrel portion 23R, the biting of the core wire 12 with respect to the rear end edge of the second barrel portion 23R is alleviated. Thereby, breakage of the core wire 12 can be prevented.
  • the projecting portion 32 projecting out of the housing 35 in the mold portion 30 is provided with a reinforcing portion 34 as a means for increasing its rigidity.
  • the reinforcing portion 34 has a thickness in the vertical direction of the protruding portion 32 outside the housing 35 in the mold portion 30, and a thickness in the vertical direction of the accommodating portion 31 accommodated in the terminal accommodating chamber 36 in the mold portion 30. This is a thicker form. According to this configuration, the bending rigidity in the vertical direction of the protruding portion 32 can be increased without complicating the shape of the mold portion 30. Thus, since the bending rigidity of the protrusion part 32 of the mold part 30 was improved, the protrusion part 32 becomes difficult to deform
  • both barrel portions 23F and 23R of the terminal fitting 15 are configured to include caulking pieces 27F and 27R which are paired with the bottom plate portion 24.
  • the bottom plate portion 24 is connected to the base portion 22 of the terminal main body portion 16, and the crimping pieces 27 ⁇ / b> F and 27 ⁇ / b> R extend in pairs from both side edges in the width direction of the bottom plate portion 24.
  • the barrel portions 23F and 23R are crimped and connected to the core wire 12 placed on the bottom plate portion 24 so that the outer periphery thereof is surrounded by the crimping pieces 27F and 27R.
  • the barrel portions 23F and 23R are surrounded by the mold portion 30 over the entire circumference, but most of the terminal body portion 16 in front of the barrel portions 23F and 23R of the terminal fitting 15 is covered with the mold portion 30. I have not been told.
  • the entire terminal fitting 15 including the barrel portions 23 ⁇ / b> F and 23 ⁇ / b> R is accommodated in the terminal accommodating chamber 36 of the housing 35.
  • the mold part 30 covers the bottom plate part 24 of the barrel parts 23F and 23R, but does not cover the base part 22 of the terminal body part 16. Therefore, there is a concern that a step is generated between the outer surface of the base portion 22 and the outer surface of the mold portion 30 that covers the barrel portions 23F and 23R. When such a level difference occurs, a gap is generated between the outer surface of the base portion 22 and the inner wall surface of the terminal accommodating chamber 36 when the terminal fitting 15 is accommodated in the terminal accommodating chamber 36. There is a concern that the posture of the metal fitting 15 becomes unstable.
  • the bottom plate portions 24 of the barrel portions 23F and 23R are raised with respect to the base portion 22 of the terminal body portion 16. According to this configuration, the difference in height between the lower surface of the base portion 22 that is exposed from the terminal body portion 16 and the lower surface of the region surrounding the barrel portions 23F and 23R in the mold portion 30 is reduced or eliminated. it can. Therefore, even if the shape of the inner wall of the terminal accommodating chamber 36 is flat, the terminal fitting 15 can be accommodated in the terminal accommodating chamber 36 in a stable posture.
  • the formation range of the accommodating portion 42 (the region in which the terminal accommodating chamber 46 is accommodated) of the mold portion 41 is in addition to the formation range of the accommodating portion 31 of the first embodiment. 13 also extends to the surrounding area. Further, with respect to the housing 45, the formation range of the terminal accommodating chamber 46 is extended rearward from the terminal accommodating chamber 36 of the first embodiment. As a result, in the connector B of the second embodiment, the entire terminal fitting 15, the exposed portion 14 of the core wire 12, and the front end portion of the insulating coating 13 are accommodated in the terminal accommodating chamber 46.
  • a reinforcing portion 44 similar to the reinforcing portion 34 of the first embodiment is formed on the protruding portion 43 of the mold portion 41 that protrudes rearward of the terminal accommodating chamber 46.
  • the present invention is not limited to the embodiments described with reference to the above description and drawings.
  • the following embodiments are also included in the technical scope of the present invention.
  • the core wire of the covered electric wire is made of aluminum or aluminum alloy, but the material of the core wire is not limited to aluminum or aluminum alloy but may be other metals such as copper and copper alloy. May be.
  • the terminal fitting is made of copper or copper alloy, but the material of the terminal fitting is not limited to copper or copper alloy, but may be other metals such as aluminum or aluminum alloy. Good.
  • the entire mold portion may be accommodated in the terminal accommodating chamber.
  • the enlarged diameter portion is formed at the rear end portion of the first barrel portion. However, the enlarged diameter portion may not be formed at the rear end portion of the first barrel portion.
  • the enlarged diameter portion is formed at the rear end portion of the second barrel portion. However, the enlarged diameter portion may not be formed at the rear end portion of the first barrel portion.
  • the bottom plate portions of both barrel portions are raised with respect to the base portion of the terminal main body portion, but the bottom plate portion and the base portion are continuously flush with each other at the same height.
  • the reinforcing part is formed on the protruding part of the mold part, but the reinforcing part may not be formed on the protruding part.
  • the second barrel portion is not in contact with the insulating coating, but the rear end of the second barrel portion may be in contact with the front end surface of the insulating coating.
  • A, B Connector 10, 40 ... Electric wire with terminal 11 ... Coated electric wire 12 ... Core wire 13 ... Insulation coating 14 ... Exposed portion of core wire 15 ... Terminal metal fitting 16 ... Terminal body portion 22 ... Base portion 23F ... First barrel portion 23R ... Second barrel portion 24 ... bottom plate portion 27F ... first caulking piece (caulking piece of the first barrel portion) 27R ... Second caulking piece (caulking piece of the second barrel part) 28F ... 1st diameter expansion part (diameter expansion part of the 1st barrel part) 28R ... 2nd diameter expansion part (diameter expansion part of 2nd barrel part) 30, 41 ... Mold part 35, 45 ... Housing 36, 46 ... Terminal accommodation chamber 31, 42 ... Accommodation part 32, 43 ... Projection part 33, 44 ... Reinforcement part

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  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

La présente invention empêche qu'une partie de connexion entre une armature métallique de borne et un fil central soit influencée par la flexion d'un fil électrique revêtu. Un fil électrique à borne (10) selon l'invention est pourvu : d'une première partie cylindre (23F) qui est formée dans une armature métallique de borne (15) et qui est collée par pression à la région côté extrémité avant d'une partie dénudée (14) d'un fil central (12) ; d'une deuxième partie cylindre (23R) qui est formée à un emplacement, dans l'armature métallique de borne (15), situé derrière la première partie cylindre (23F) mais devant un revêtement isolant (13), et qui est ajustée à la presse sur la région côté extrémité arrière de la partie dénudée (14) du fil central (12) ; d'une partie de moulage (30) qui recouvre, d'une manière étanche aux liquides, la partie d'extrémité avant du revêtement isolant (13) et la région entière de la partie dénudée (14) comprenant les parties du fil central (12) collées par pression à la première partie cylindre (23F) et à la deuxième partie cylindre (23R). L'armature métallique de borne (15) et la partie de moulage (30) sont intégralement logées dans une chambre de stockage de borne (36) d'un boîtier (35).
PCT/JP2016/079367 2015-10-23 2016-10-03 Fil électrique à borne et connecteur WO2017068953A1 (fr)

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JP2015-208745 2015-10-23
JP2015208745A JP2017084482A (ja) 2015-10-23 2015-10-23 端子付き電線及びコネクタ

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002315130A (ja) * 2001-04-09 2002-10-25 Yonezawa Densen Kk ワイヤハーネス、電線端末の止水構造
JP2003297447A (ja) * 2002-04-05 2003-10-17 Furukawa Electric Co Ltd:The 接続端子装置
JP2005050736A (ja) * 2003-07-30 2005-02-24 Furukawa Electric Co Ltd:The アルミ電線への端子圧着構造及び端子付アルミ電線の製造方法
JP2009087848A (ja) * 2007-10-02 2009-04-23 Furukawa Electric Co Ltd:The アルミニウム電線用の圧着端子およびアルミニウム電線の端子圧着方法
JP2009295352A (ja) * 2008-06-03 2009-12-17 Sumitomo Wiring Syst Ltd 圧着端子
JP2012079494A (ja) * 2010-09-30 2012-04-19 Furukawa Electric Co Ltd:The 電線と端子の接続構造及び接続装置、接続方法、ワイヤーハーネス
JP2012084407A (ja) * 2010-10-12 2012-04-26 Yazaki Corp コネクタ端子の電線接続構造
JP2013069613A (ja) * 2011-09-26 2013-04-18 Auto Network Gijutsu Kenkyusho:Kk 電線、端子金具付き電線、および端子金具と電線の接続方法
JP2014013657A (ja) * 2012-07-03 2014-01-23 Yazaki Corp コネクタ端子及びコネクタ端子の止水方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002315130A (ja) * 2001-04-09 2002-10-25 Yonezawa Densen Kk ワイヤハーネス、電線端末の止水構造
JP2003297447A (ja) * 2002-04-05 2003-10-17 Furukawa Electric Co Ltd:The 接続端子装置
JP2005050736A (ja) * 2003-07-30 2005-02-24 Furukawa Electric Co Ltd:The アルミ電線への端子圧着構造及び端子付アルミ電線の製造方法
JP2009087848A (ja) * 2007-10-02 2009-04-23 Furukawa Electric Co Ltd:The アルミニウム電線用の圧着端子およびアルミニウム電線の端子圧着方法
JP2009295352A (ja) * 2008-06-03 2009-12-17 Sumitomo Wiring Syst Ltd 圧着端子
JP2012079494A (ja) * 2010-09-30 2012-04-19 Furukawa Electric Co Ltd:The 電線と端子の接続構造及び接続装置、接続方法、ワイヤーハーネス
JP2012084407A (ja) * 2010-10-12 2012-04-26 Yazaki Corp コネクタ端子の電線接続構造
JP2013069613A (ja) * 2011-09-26 2013-04-18 Auto Network Gijutsu Kenkyusho:Kk 電線、端子金具付き電線、および端子金具と電線の接続方法
JP2014013657A (ja) * 2012-07-03 2014-01-23 Yazaki Corp コネクタ端子及びコネクタ端子の止水方法

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