EP2575215B1 - Pose de terminal - Google Patents

Pose de terminal Download PDF

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Publication number
EP2575215B1
EP2575215B1 EP12006393.8A EP12006393A EP2575215B1 EP 2575215 B1 EP2575215 B1 EP 2575215B1 EP 12006393 A EP12006393 A EP 12006393A EP 2575215 B1 EP2575215 B1 EP 2575215B1
Authority
EP
European Patent Office
Prior art keywords
resilient
contact piece
resilient contact
piece
terminal fitting
Prior art date
Legal status (The legal status 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 status listed.)
Not-in-force
Application number
EP12006393.8A
Other languages
German (de)
English (en)
Other versions
EP2575215A1 (fr
Inventor
Tomoya Itou
Shinji Iihoshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Wiring Systems Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
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 Sumitomo Wiring Systems Ltd filed Critical Sumitomo Wiring Systems Ltd
Publication of EP2575215A1 publication Critical patent/EP2575215A1/fr
Application granted granted Critical
Publication of EP2575215B1 publication Critical patent/EP2575215B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members
    • H01R13/434—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by separate resilient locking means on contact member, e.g. retainer collar or ring around contact member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
    • H01R4/185—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion combined with a U-shaped insulation-receiving portion

Definitions

  • the present invention relates to a terminal fitting.
  • Japanese Unexamined Patent Publication No. 2003-045536 discloses such a female terminal fitting that a resilient contact piece extending along an inserting direction of a tab is accommodated in a rectangular tube portion, into which the tab is to be inserted, and the plate-like tab inserted into the rectangular tube portion is electrically conductively connected by being sandwiched between the resiliently deformed resilient contact piece and a pressure receiving wall portion constituting the rectangular tube portion.
  • Other examples of such terminal fittings are found in EP 0 821 436 , which discloses a terminal fitting with a resilient contact that rises upwards diagonally towards the open end of the terminal, and in EP 067 752 , which discloses a terminal fitting having forwardly extending and inwardly folded opposing cantilivered contact arms.
  • the posture of the resilient contact piece(s) may be so inclined that there is a height difference between opposite side edges in a width direction. If the resilient contact piece(s) is/are inclined, a clearance is formed between the resilient contact piece(s) and the tab and a contact state becomes unstable. Therefore, a countermeasure is desired.
  • JP S63 56572 U discloses a female terminal fitting which includes a resilient contact piece and a resilient piece extending from a middle part of the resilient contact piece.
  • the present invention was completed in view of the above situation and an object thereof is to prevent the posture inclination of a resilient contact piece.
  • a terminal fitting comprising: a tube portion into which a tab is to be at least partly inserted in an insertion direction; at least one resilient contact piece which substantially extends along the inserting direction of the tab in the tube portion and comes into contact with the tab inserted into the tube portion while being resiliently deformed; one or more resilient pieces which extend from the resilient contact piece in a width direction intersecting the insertion direction and are able to resiliently come into contact with an inner wall surface of the tube portion; a shell which is a component separate from the resilient contact piece, at least partly surrounds the resilient contact piece and forms part of the tube portion; and at least one restricting portion which is formed at the tube portion, is configured to extend obliquely inward of the shell toward the front, and restricts displacements of the resilient piece(s) in an extending direction of the resilient piece(s) by being resiliently brought into contact with the extending end(s) of the resilient piece(s).
  • the rectangular tube portion and the resilient contact piece may present design restrictions to each other. In that respect, a degree of freedom in designing the resilient contact piece and the rectangular tube portion is high in the present invention since the rectangular tube portion is formed using the shell that is separate from the resilient contact piece.
  • a pair of resilient pieces is provided which extend from substantially opposite side edges of the resilient contact piece in the width direction.
  • a terminal fitting comprising a rectangular tube portion into which a tab is to be inserted from front; a resilient contact piece which extends along an inserting direction of the tab in the rectangular tube portion and comes into contact with the tab inserted into the rectangular tube portion while being resiliently deformed; and a pair of resilient pieces which extend from opposite side edges of the resilient contact piece in a width direction and are able to resiliently come into contact with an inner wall surface of the rectangular tube portion.
  • the resilient contact piece extends from a supporting wall portion forming part of the tube portion; and/or the resilient piece(s) extend(s) from a base end portion of the resilient contact piece.
  • a pair of resilient pieces is provided which extend from substantially opposite side edges of the resilient contact piece in the width direction.
  • a terminal fitting comprising a rectangular tube portion into which a tab is to be inserted from front; a resilient contact piece which extends along an inserting direction of the tab in the rectangular tube portion and comes into contact with the tab inserted into the rectangular tube portion while being resiliently deformed; and a pair of resilient pieces which extend from opposite side edges of the resilient contact piece in a width direction and are able to resiliently come into contact with an inner wall surface of the rectangular tube portion.
  • the resilient contact piece extends from a supporting wall portion forming part of the tube portion; and/or the resilient piece(s) extend(s) from a base end portion of the resilient contact piece.
  • the resilient contact piece extends from a supporting wall portion constituting the rectangular tube portion; and the resilient pieces extend from a base end portion of the resilient contact piece.
  • the supporting wall portion has a high rigidity and is difficult to deform since it constitutes the rectangular tube portion. Accordingly, the base end portion of the resilient contact piece linked to the supporting wall portion is also difficult to incline and deform. In addition, since the base end portion of this resilient contact piece is reinforced by the resilient pieces, the rigidity of the base end portion of the resilient contact piece is increased. In this way, the posture inclination of the resilient contact piece is reliably prevented.
  • the base end portion of the resilient contact piece is reinforced by the one or more resilient pieces such that the rigidity of the base end portion of the resilient contact piece is increased.
  • a front end part of the supporting portion serves as a front frame-like portion having a high rigidity by continuously extending over the entire circumference and/or wherein a rear end part of the supporting portion serves as a rear frame-like portion having a high rigidity by continuously extending over the entire circumference.
  • the resilient contact piece is formed in the supporting wall portion by cutting and bending, wherein a cut area of the resilient contact piece in forward and backward directions is a range from the rear end of the front frame-like portion to the front end of the rear frame-like portion.
  • a base end portion of the resilient contact piece is directly linked to the front frame-like portion.
  • an extending end of the resilient contact piece and/or an extending end of the resilient piece is located such as to be held in contact with or proximately face the inner surface of the tube portion and/or wherein an extending end of the resilient piece
  • an extending end of the resilient piece is substantially facing an extending end of the restricting portion substantially along forward and backward directions while particularly being spaced apart.
  • a base end portion of the resilient contact piece is wider than an area behind it and the widened part(s) particularly serve(s) as a pair of projecting portions projecting in the width direction.
  • a terminal fitting 10 of this first embodiment is shaped to be long and narrow in forward and backward directions as a whole particularly by assembling a terminal main body 11 and a shell 12 which are components separate from each other as shown in FIGS. 4 to 7 .
  • a front area (particularly a substantially half area) of the terminal fitting 10 at or near a front end side in forward and backward directions FBD is a (particularly substantially rectangular or polygonal) tube portion 13 into which a tab T of a male terminal is to be at least partly inserted from front, and one or more resilient contact pieces 14 to be resiliently brought into contact with the tab T are provided at (particularly at least partly accommodated in) the (particularly substantially rectangular or polygonal) tube portion 13.
  • a rear area (particularly a substantially half area of) the terminal fitting 10 at or near a rear end side is a wire connection portion which is to be connected to a wire and particularly comprises at least one wire crimping portion 15 in the form of at least one open barrel which is crimped and connected to the wire.
  • the terminal main body 11 is formed by applying bending, folding and/or embossing and the like to a conductive (particularly metal) plate material punched out or cut into a specified (predetermined or predeterminable) shape. As shown in FIGS. 2 , 4 , 8 and 9 , a front end area of the terminal main body 11 is a (particularly substantially box-shaped) supporting portion 16 constituting or forming part of the tube portion 13 and a rear end area of the terminal main body 11 is or forms part of the wire connection portion (particularly the wire crimping portion 15).
  • the (box-shaped) supporting portion 16 specifically is formed in the shape of a (particularly substantially rectangular or polygonal) tube by including a lower wall portion 17 (as a particular supporting wall portion), one or more, particularly a pair of side wall portions 18 projecting or standing up at an angle different from 0° or 180°, preferably substantially at a right angle from (particularly both lateral (left and right) edges of) the lower wall portion 17 and an upper wall portion 19 (as a particular supporting wall portion) extending at an angle different from 0° or 180°, preferably substantially at a right angle from (particularly the distal or upper end edge of) one side wall portion 18.
  • a front end part of the (particularly substantially box-shaped) supporting portion 16 serves as a front frame-like portion 20 particularly having a high rigidity by continuously extending over the entire circumference.
  • a rear end part of the (particularly substantially box-shaped) supporting portion 16 serves as a rear frame-like portion 21 particularly having a high rigidity by continuously extending over the entire circumference.
  • the lateral (left and/or right) side wall portion(s) 18 particularly is/are in the form of flat plates in their entireties, such as, without being cut and bent or perforated.
  • the lower wall portion 17 and the upper wall portion 19 particularly are formed with a pair of substantially vertically symmetric resilient contact pieces 14 particularly by cutting and bending.
  • a cut area of the resilient contact pieces 14 in forward and backward directions FBD is a range from the rear end of the front frame-like portion 20 to the front end of the rear frame-like portion 21.
  • the resilient contact pieces 14 particularly substantially extend backward (or in the inserting direction ID) in a cantilever manner from a front portion of the supporting portion 16, particularly from the front frame-like portion 20. That is, base end portions 14F of the resilient contact pieces 14 particularly are directly linked to the front frame-like portion 20. As shown in FIGS.
  • the shapes of the resilient contact pieces 14 viewed sideways are curved to bulge inward and/or toward the mating resilient contact pieces 14.
  • a part where a facing distance (vertical distance) between the both resilient contact pieces 14 is shortest serves as a contact portion 22 with the tab T.
  • a formation area of the resilient contact pieces 14 in the width direction is intermediate parts (particularly substantially central parts) of the lower wall portion 17 and the upper wall portion 19.
  • the base end portion 14F of the resilient contact piece 14 particularly is wider than an area behind it and the widened parts particularly serve as a pair of (particularly substantially bilaterally symmetric) projecting portions 23 projecting in the width direction WD.
  • the lower wall portion 17 and/or the upper wall portion 19 particularly are (particularly each) formed with one or more, particularly a pair of resilient pieces 24 substantially extending backward (or in the inserting direction ID) in a cantilever manner from (the pair of) projecting portions 23 (base portion 14F of the resilient contact piece 14).
  • the pair of resilient pieces 24 formed on the (particularly each) resilient contact piece 14 particularly substantially are bilaterally symmetric.
  • the resilient piece(s) 24 of the lower wall portion 17 and that/those of the upper wall portion 19 particularly are vertically symmetric. Length(s) of the resilient piece(s) 24 in forward and backward directions FBD particularly is/are shorter than that/those of the resilient contact piece(s) 14.
  • the rear end(s) (extending end(s)) of the resilient piece(s) 24 particularly is/are located more backward than the contact portion 22.
  • the shape(s) of the resilient piece(s) 24 viewed sideways particularly is/are curved to bulge toward the mating resilient piece(s) 24.
  • the shell 12 includes a lower plate portion 25, one or more, particularly a pair of side plate portions 26 projecting or standing up at an angle different from 0° or 180°, preferably substantially at a right angle from (particularly the both lateral (left and right) edges of) the lower plate portion 25 and an upper plate portion 27 extending at an angle different from 0° or 180°, preferably substantially at a right angle from particularly the distal or upper end edge of) one side plate portion 26.
  • the lower plate portion 25 and the upper plate portion 27 particularly are each formed with one or more, particularly a pair of restricting portions 28 extending obliquely inwardly of the shell 12 toward the front particularly by cutting and bending.
  • the pair of restricting portions 28 particularly substantially are bilaterally symmetric with each other.
  • the resilient pieces 24 of the lower wall portion 25 and those of the upper plate portion 27 particularly substantially are vertically symmetric with each other.
  • the shell 12 particularly is to be assembled with the terminal main body 11 to be externally mounted on the (substantially box-shaped) supporting portion 16.
  • the tube portion 13 at least partly is formed by the shell 12 and the supporting portion 16.
  • the lower plate portion 25 and the lower wall portion 17 at least partly overlap substantially in surface contact with each other
  • the lateral (left and/or right) side plate portion(s) 26 and the lateral (left and/or right) side wall portion(s) 18 also) at least partly overlap substantially in surface contact with each other
  • the upper plate portion 27 and the upper wall portion 19 also) at least partly overlap substantially in surface contact with each other.
  • the rear end(s) (extending end(s)) of the resilient contact piece(s) 14 particularly is/are located in the vertical direction to be held in contact with or proximately face the inner surface of the upper plate portion 27 or the inner surface of the lower plate portion 25.
  • the rear end(s) (extending end(s)) of the resilient piece(s) 24 particularly is/are located in the vertical direction to be held in contact with or proximately face the inner surface of the upper plate portion 27 or the inner surface of the lower plate portion 25.
  • the rear end(s) (extending end(s)) of the resilient piece(s) 24 particularly is/are facing the front end(s) (extending end(s)) of the restricting portion(s) 28 from front in forward and backward directions FBD while particularly being spaced apart.
  • the tab T contacts the one or more contact pieces 14 (particularly at least partly thrusts itself between the upper and lower resilient contact pieces 14), whereby the (both) resilient contact piece(s) 14 is/are resiliently deformed outwardly (particularly to vertically move away from each other) while displacing the contact portion 22 obliquely backward as shown in FIG. 5 .
  • the resilient piece(s) 24 is/are resiliently deformed outwardly (particularly to vertically move away from each other) with the extending end(s) thereof held in contact with the upper plate portion 27 or the lower plate portion 25, and/or the extending end(s) of the resilient piece(s) 24 is/are displaced backward while sliding in contact with the upper plate portion 27 or the lower plate portion 25.
  • the terminal fitting 10 of this first embodiment includes the tube portion 13 into which the tab T is to be at least partly inserted in the inserting direction ID (particularly substantially from front), and the resilient contact piece(s) 14 that extend(s) substantially along the inserting direction ID of the tab T in the tube portion 13 and come(s) into contact with the tab T inserted into the tube portion 13 while being resiliently deformed.
  • the posture(s) of the resilient contact piece(s) 14 may be so inclined that there is a height difference between opposite side edges in the width direction when the terminal fitting 10 is subjected to vibration or impact. As a result, clearances may be formed between the tab T and the resilient contact pieces 14 and a contact state may become unstable.
  • the terminal fitting 10 of this first embodiment particularly includes the one or more, particularly the pair of resilient pieces 24 that extend from the opposite side edges of each resilient contact piece 14 in the width direction WD and can resiliently come into contact with the inner wall surface of the tube portion 13.
  • the one or more, particularly the pair of resilient pieces 24 resiliently come into contact with the inner wall surface of the tube portion 13 (inner surface of the upper plate portion 27 or the lower plate portion 25), wherefore the posture inclination of the resilient contact piece 14 is prevented.
  • the resilient contact piece(s) 14 particularly substantially extend from the lower wall portion 17 and/or the upper wall portion 19 constituting or forming part of the (particularly substantially rectangular or polygonal) tube portion 13 and the resilient piece(s) 24 extend from the base end portion(s) 14F of the resilient contact piece(s) 14.
  • the lower wall portion 17 and the upper wall portion 19 particularly have a high rigidity and are difficult to deform since they form the (particularly substantially rectangular or polygonal) tube portion 13.
  • the base end portion(s) 14F of the resilient contact piece(s) 14 linked to these lower wall portion 17 and/or upper wall portion 19 are also difficult to incline and deform.
  • the base end portion(s) 14F of the resilient contact piece(s) 14 is/are reinforced by the one or more resilient pieces 24, the rigidity of the base end portion(s) 14F of the resilient contact piece(s) 14 is increased. In this way, the posture inclination of the resilient contact pieces 14 is reliability prevented.
  • the terminal fitting 10 particularly includes the one or more restricting portions 28 that are formed at the tube portion 13 and restrict displacements of the resilient piece(s) 24 in its/their extending directions by being resiliently brought into contact with the extending end(s) of the resilient piece(s) 24.
  • the resilient piece(s) 24 come(s) into contact with the restricting portion(s) 28 while the tab T is at least partly inserted into the tube portion 13 to resiliently come into contact with the resilient contact piece(s) 14, resilient deformation amount(s) of the resilient piece(s) 24 increase(s) thereafter. In this way, an inclination preventing effect by resilient restoring force(s) of the resilient piece(s) 24 is enhanced.
  • the terminal fitting 10 of this first embodiment particularly includes the shell 12 that is a component separate from the resilient contact pieces 14, at least partly surround the resilient contact piece(s) 14 and constitutes or forms part of the tube portion 13. That is, the tube portion 13 particularly is formed using the shell 12 separate from the resilient contact piece(s) 14. Therefore, a degree of freedom in designing the resilient contact pieces 14 and the rectangular tube portion 13 is high.
  • a terminal fitting 10 includes a tube portion 13 into which a tab T is to be at least partly inserted in an insertion direction ID, one or more resilient contact pieces 14 which substantially extend along the inserting direction ID of the tab T in the tube portion 13 and come(s) into contact with the tab T at least partly inserted into the tube portion 13 while being resiliently deformed, and one or more, particularly a pair of resilient pieces 24 which extend from (particularly opposite side edges of) the resilient contact piece(s) 14 in a width direction WD and is/are able to resiliently come into contact with an inner wall surface of the tube portion 13.
  • a terminal fitting 30 of this second embodiment is shaped to be long and narrow in forward and backward directions FBD as a whole particularly by assembling a terminal main body 31 and a shell 32 which are components separate from each other as shown in FIGS. 12 , 15 and 16 .
  • a front area (particularly a substantially half area) of the terminal fitting 30 at a front end side in forward and backward directions FBD is a (particularly substantially rectangular or polygonal) tube portion 33 into which a tab T of a male terminal is to be at least partly inserted in an insertion direction ID, e.g. substantially from front.
  • One or more resilient contact pieces 34 to be resiliently brought into contact with the tab T are at least partly accommodated in or provided at the tube portion 33.
  • a rear area (particularly a substantially half area) of the terminal fitting 30 at a rear end side is a wire connection portion which is to be connected to a wire and particularly comprises at least one wire crimping portion 35 in the form of an open barrel which is crimped, bent or folded and connected to the wire.
  • the terminal main body 31 particularly is formed by applying bending, folding and/or embossing and the like to a conductive (particularly metal) plate material punched out or cut into a specified (predetermined or predeterminable) shape.
  • a front end area of the terminal main body 31 is a contact functioning portion 36 and/or a rear end area of the terminal main body 31 is the wire connection portion (particularly the wire crimping portion 35).
  • the contact functioning portion 36 particularly includes at least one supporting portion 37, one or more, particularly a pair of resilient contact pieces 34 and one or more, particularly two pairs of resilient pieces 42. As shown in FIGS.
  • the supporting portion 37 includes a lower wall portion 38 and a pair of side wall portions 39 (as a particular supporting wall portion) projecting or standing up at an angle different from 0° or 180°, preferably substantially at a right angle from (particularly both lateral (left and right) edges of) the lower wall portion 38.
  • the one or more, particularly the pair of resilient contact pieces 34 substantially extend forward (direction opposite to an inserting direction ID of the tab T into the tube portion 33 in forward and backward directions FBD) particularly in a cantilever manner from the side wall portion(s) 39 and/or particularly substantially bilaterally symmetric.
  • the shapes of the resilient contact pieces 34 viewed from above (in a direction crossing the inserting direction ID of the tab T into the tube portion 33 and/or opposite lateral directions in which the pair of resilient contact pieces 34 substantially are facing) particularly are curved to bulge toward the mating resilient contact pieces 34.
  • a part where a facing distance (lateral distance) between the both resilient contact pieces 34 particularly is shortest serves as a contact portion 40 with the tab T.
  • a front end part (extending end part) of the resilient contact piece 34 particularly has a larger height than an area behind it, and this widened part serves as one or more, particularly a pair of (particularly substantially vertically symmetric) projecting portions 41 vertically projecting from both upper and lower edges of the resilient contact piece 34.
  • Each resilient contact piece 34 particularly is formed with one or more, particularly a pair of resilient pieces 42 substantially extending backward in a cantilever manner from the pair of projecting portions 41 (extending end part of the resilient contact piece 34).
  • the pair of resilient pieces 42 formed on each resilient contact piece 34 particularly substantially are vertically symmetric. Further, the resilient pieces 42 on the right side and those on the left side particularly substantially are bilaterally symmetric.
  • Length(s) of the resilient piece(s) 42 in forward and backward directions FBD particularly is/are shorter than that/those of the resilient contact piece(s) 34. Further, the rear end(s) (extending end(s)) of the resilient piece(s) 42 particularly is/are located behind the contact portion 40.
  • the shape(s) of the resilient piece(s) 42 viewed from above is/are curved to bulge inwardly particularly substantially toward the mating resilient pieces 42.
  • the shell 32 includes a lower plate portion 43, a pair of side plate portions 44 projecting or standing up at an angle different from 0° or 180°, preferably substantially at a right angle from (particularly the both lateral (left and right) edges of) the lower plate portion 43 and an upper plate portion 45 extending at an angle different from 0° or 180°, preferably substantially at a right angle from (particularly the distal or upper end edge of) one side plate portion 44.
  • a lower plate portion 43 a pair of side plate portions 44 projecting or standing up at an angle different from 0° or 180°, preferably substantially at a right angle from (particularly the both lateral (left and right) edges of) the lower plate portion 43 and an upper plate portion 45 extending at an angle different from 0° or 180°, preferably substantially at a right angle from (particularly the distal or upper end edge of) one side plate portion 44.
  • the lateral (left and/or right) side plate portion(s) 44 particularly is/are (particularly each) formed with one or more, particularly a pair of restricting portions 46 substantially extending obliquely inwardly of the shell 32 toward the front particularly by cutting and bending.
  • the pair of restricting portions 46 formed on each side plate portion 44 particularly substantially are vertically symmetric.
  • the right restricting portions 46 and the left restricting portions 46 particularly substantially are bilaterally symmetric.
  • the shell 32 is to be assembled with the terminal main body 31 to at least partly surround the contact functioning portion 36.
  • the tube portion 33 is at least partly formed by the shell 32 and the supporting portion 37.
  • the lower plate portion 43 and the lower wall portion 38 particularly at least partly overlap substantially in surface contact with each other, and/or the lateral (left and/or right) side plate portion(s) 44 and the lateral (left and/or right) side wall portion(s) 39 particularly (also) at least partly overlap substantially in surface contact with each other.
  • one or more holding pieces 47 folded to extend inward or downward inside the supporting portion 37 from the distal or upper end edges of the side plate portion(s) 44 particularly are at least partly fitted to be held in close contact with the inner surfaces of the lateral (left and/or right) side wall portion(s) 39, whereby the shell 32 and the terminal main body 31 particularly are held in an assembled state.
  • the rigidity of the lateral (left and/or right) side wall portion(s) 39 to which the base end portion(s) of the resilient contact piece(s) 34 is/are directly linked is increased by engagement with the shell 32.
  • the rear end(s) (extending end(s)) of the resilient piece(s) 42 particularly is/are located in the lateral direction to be held in contact with or proximately face the inner surface(s) of the side wall portion(s) 44 as shown in FIGS. 15 and 16 .
  • the rear end(s) (extending end(s)) of the resilient piece(s) 24 particularly is/are facing the front end(s) (extending end(s)) of the restricting portion(s) 46 from front in forward and backward directions FBD while being spaced apart.
  • the tab T contacts the one or more resilient contact pieces 34 whereby the resilient contact piece(s) 34 is/are deformed outwardly, particularly the tab T thrusts itself between the lateral (left and right) resilient contact pieces 34, whereby the both resilient contact pieces 34 are resiliently deformed to laterally move away from each other, while displacing the contact portion 40 obliquely backward.
  • the resilient piece(s) 42 is/are resiliently deformed laterally (to particularly laterally move away from each other) with the extending end(s) thereof held in contact with the side plate portion(s) 44 and/or the extending end(s) of the resilient contact piece(s) 42 particularly is/are displaced backward while sliding in contact with the side plate portion(s) 44.
  • resilient deformation amount(s) and resilient restoring force(s) of the resilient piece(s) 42 are maximized
  • the resilient piece(s) 42 do(es) not come into contact with the restricting portion(s) 46.
  • the extending end(s) of the resilient piece(s) 42 come(s) into contact with the front end(s) of the restricting portion(s) 46 while the resilient deformation amount of the resilient contact piece 34 falls within the range of resiliency limit.
  • any further resilient deformation of the resilient contact piece 34 is hindered. In this way, it is prevented in this second embodiment that the resilient contact pieces 34 are deformed beyond the resiliency limit thereof.
  • the terminal fitting 30 of this second embodiment includes the (particularly substantially rectangular or polygonal) tube portion 33 into which the tab T is to be at least partly inserted in the insertion direction ID (from front), and the resilient contact piece(s) 34 that substantially extend along the inserting direction ID of the tab T in or at the tube portion 33 and come into contact with the tab T at least partly inserted into the tube portion 33 while being resiliently deformed.
  • the posture(s) of the resilient contact piece(s) 34 may be so inclined that there is a height difference between opposite side edges in the width direction when the terminal fitting 30 is subjected to vibration or impact. As a result, clearances may be formed between the tab T and the resilient contact piece(s) 34 and a contact state may become unstable.
  • the terminal fitting 30 of this second embodiment includes the one or more, particularly the pair of resilient pieces 42 that extend from (particularly the substantially opposite side edges of) the (particularly each) resilient contact piece(s) 34 in the vertical direction and can resiliently come into contact with the inner wall surface of the tube portion 33.
  • the (pair of) resilient piece(s) 42 resiliently come(s) into contact with the inner wall surface of the tube portion 33 (inner surface of the side wall portion 44), wherefore the posture inclination of the resilient contact piece 34 is prevented.
  • the terminal fitting 30 of this second embodiment particularly includes the shell 32 that is a component separate from the resilient contact pieces 34, at least partly surrounds the resilient contact piece(s) 34 and constitutes or forms part of the tube portion 33. That is, the tube portion 33 particularly is formed using the shell 32 separate from the resilient contact piece(s) 34. Therefore, a degree of freedom in designing the resilient contact pieces 34 and the tube portion 33 is high.
  • a terminal fitting 50 of this example is shaped to be long and narrow in forward and backward directions FBD as a whole particularly by assembling a terminal main body 51 and a shell 52 which are components separate from each other.
  • a front area (particularly a substantially half area) of the terminal fitting 50 at a front end side in forward and backward directions FBD is a (particularly substantially rectangular or polygonal) tube portion 53 into which a tab T of a male terminal is to be at least partly inserted in an insertion direction ID (e.g. from front), and one or more resilient contact pieces 54 to be resiliently brought into contact with the tab T are at least partly accommodated in or provided at the tube portion 53.
  • a rear area (particularly a substantially half area) of the terminal fitting 50 at a rear end side is a wire connection portion which is to be connected with a wire and which particularly comprises at least one wire crimping portion 55 in the form of at least one open barrel which is to be crimped or bent or folded and connected to the wire.
  • the terminal main body 51 is formed particularly by applying bending, folding and/or embossing and the like to a conductive (particularly metal) plate material punched out or cut into a specified (predetermined or predeterminable) shape.
  • a front end area of the terminal main body 51 is a contact functioning portion 56 and a rear end area of the terminal main body 51 is the wire connection portion (particularly the wire crimping portion 55).
  • the contact functioning portion 56 includes a (particularly substantially box-shaped) supporting portion 57, one or more, particularly a pair of resilient contact pieces 54 and one or more, particularly two pairs of resilient pieces 58.
  • the (box-shaped) supporting portion 57 includes a lower wall portion 59 (as a particular supporting wall portion), one or more, particularly a pair of side wall portions 60 standing up or projecting at an angle different from 0° or 180°, preferably substantially at a right angle from (particularly both lateral (left and right) edges of) the lower wall portion 59 and an upper wall portion 61 (as a particular supporting wall portion) extending at an angle different from 0° or 180°, preferably substantially at a right angle from one side wall portion 60.
  • the rigidity of the box-shaped supporting portion 57 particularly is increased by continuously extending over the entire circumference.
  • the (particularly pair of vertically symmetric) resilient contact piece(s) 54 substantially extend(s) forward (direction opposite to an inserting direction ID of the tab T into the tube portion 53 in forward and backward directions FBD) particularly substantially in a cantilever manner from the lower wall portion 59 and/or the upper wall portion 61 and particularly substantially vertically symmetric.
  • the shape(s) of the resilient contact piece(s) 54 viewed sideways (in a direction crossing an inserting direction ID of the tab T into the tube portion 53 and/or opposite vertical directions in which the pair of resilient contact pieces 54 are facing) are curved to bulge inwardly particularly substantially toward the mating resilient contact pieces 54.
  • a part where a facing distance (vertical distance) between the both resilient contact pieces 54 particularly is shortest serves as a contact portion 62 with the tab T.
  • a formation area of the resilient contact piece(s) 54 in the width direction particularly is intermediate parts (particularly substantially central parts) of the lower wall portion 59 and/or the upper wall portion 61. Further, an extending end part (front end part) of the resilient contact piece 54 particularly is wider than an area between opposite end parts and the widened parts serve as one or more, particularly a pair of (particularly substantially bilaterally symmetric) projecting portions 63 projecting in the width direction.
  • the contact functioning portion 56 is formed with one or more, particularly a pair of (particularly substantially bilaterally symmetric) resilient pieces 58 which link the projecting portion(s) 63 and the lower wall portion 59 or the projecting portion(s) 63 and the upper wall portion 61.
  • the resilient piece(s) 58 particularly is/are supported at both front and rear ends. Further, the resilient piece(s) 58 linked to the lower wall portion 59 and that/those linked to the upper wall portion 61 particularly substantially are vertically symmetric.
  • the shape(s) of the resilient piece(s) 58 viewed sideways are curved to bulge outward particularly substantially in directions away from the mating resilient pieces 58 (i.e. to bulge in directions opposite to the resilient contact pieces 54).
  • the shell 52 includes a lower plate portion 64, one or more, particularly a pair of side plate portions (not shown) standing up or projecting at an angle different from 0° or 180°, preferably substantially at a right angle from (particularly the both lateral (left and right) edges of) the lower plate portion 64 and an upper plate portion 66 extending at an angle different from 0° or 180°, preferably substantially at a right angle from (particularly the distal or upper end edge of) one side plate portion.
  • the shell 52 particularly is to be assembled with the terminal main body 51 to at least partly surround the contact functioning portion 56. In a state where the shell 52 is assembled, the tube portion 53 at least partly is formed by the shell 52 and the supporting portion 57.
  • the lower plate portion 64 and the lower wall portion 59 particularly at least partly overlap substantially in surface contact with each other, and/or the lateral (left and/or right) side plate portion(s) and the lateral (left and/or right) side wall portion(s) 60 particularly (also) at least partly overlap substantially in surface contact with each other.
  • the resilient piece(s) 58 particularly are located to be held in contact with or proximately face the inner surface(s) of the lower plate portion 64 and/or the upper plate portion 66.
  • the tab T contacts the resilient contact piece(s) 54 and particularly thrusts itself between the upper and lower resilient contact pieces 54, whereby the (both) resilient contact piece(s) 54 is/are resiliently deformed outwardly particularly to vertically move away from each other.
  • the resilient contact piece(s) 54 is/are resiliently deformed
  • the resilient piece(s) 58 is/are resiliently deformed while being held in contact with the lower plate portion 64 or the upper plate portion 66.
  • the terminal fitting 50 of this example includes the (particularly substantially rectangular or polygonal) tube portion 53 into which the tab T is to be at least partly inserted in the insertion direction ID (e.g. from front), and the resilient contact piece(s) 54 that substantially extend(s) along the inserting direction ID of the tab T in the tube portion 53 and come(s) into contact with the tab T inserted into the tube portion 53 while being resiliently deformed.
  • the posture(s) of the resilient contact piece(s) 54 may be so inclined that there is a height difference between opposite side edge(s) in the width direction when the terminal fitting 50 is subjected to vibration or impact. As a result, clearances may be formed between the tab T and the resilient contact piece(s) 54 and a contact state may become unstable.
  • the terminal fitting 50 of this example includes the one or more, particularly the pair of resilient pieces 58 that extend from (particularly the substantially opposite side edges of each of) the resilient contact piece(s) 54 in the lateral direction and can resiliently come into contact with the inner wall surface of the tube portion 53.
  • the one or more, particularly the pair of resilient pieces 58 resiliently come(s) into contact with the inner wall surface of the tube portion 53 (inner surfaces of the lower plate portion 64 and/or the upper plate portion 66), wherefore the posture inclination of the resilient contact piece 54 is prevented.

Claims (10)

  1. Un raccord de borne (T), comprenant:
    une portion tubulaire (13 ; 33) dans laquelle une languette (T) est à insérer au moins partiellement dans une direction d'insertion (ID) ;
    au moins un élément de contact élastique (14 ; 34) qui s'étend, essentiellement le long de la direction d'insertion (ID) de la languette (T), dans la portion tubulaire (13 ; 33), et entre en contact avec la languette (T) insérée dans la portion tubulaire (13 ; 33) tout en étant élastiquement déformée ; et
    un ou plusieurs éléments élastiques (24 ; 42), qui s'étendent de l'élément de contact élastique (14 ; 34) dans une direction de largeur (WD) coupant la direction d'insertion (ID) et sont en mesure d'entrer en contact de manière élastique avec une surface de paroi intérieure de portion tubulaire (13 ; 33),
    caractérisé par
    une coque (12 ; 32), qui est une composante distincte de l'élément de contact élastique (14 ; 34), qui entoure au moins partiellement l'élément de contact élastique (14 ; 34) et forme une partie de la portion tubulaire (13 ; 33), et
    au moins une portion de restriction (28 ; 46) qui est formée auprès de la portion tubulaire (13 ; 33), qui est configurée pour s'étendre de manière oblique vers l'intérieur de la coque vers l'avant, et restreint les déplacements de la (des) élément(s) élastique(s) (24 ; 42) dans une direction de déploiement de la (des) élément(s) élastique(s) (24 ; 42) en étant élastiquement amenée en contact avec la (les) extrémité(s) saillante(s) de la (des) élément(s) élastique(s) (24 ; 42).
  2. Un raccord de borne d'après la revendication 1, sachant qu'une paire d'éléments élastiques (24 ; 42) est fournie, qui s'étendent de bords latéraux essentiellement opposés de l'élément de contact élastique (14 ; 34) en direction de la largeur (WD).
  3. Un raccord de borne d'après une quelconque des revendications précédentes, sachant que:
    l'élément de contact élastique (14 ; 34) s'étend à partir d'une portion de paroi de support (18 ; 19 ; 39) faisant partie de la portion tubulaire (13 ; 33) ; et/ou que
    le (les) élément(s) élastique(s) (24 ; 42) s'étend(ent) à partir d'une portion d'extrémité de base (14F) de l'élément de contact élastique (14 ; 34).
  4. Un raccord de borne d'après une quelconque des revendications précédentes, sachant que la portion d'extrémité de base (14F) de l'élément de contact élastique (14 ; 34) est renforcée par le ou les élément(s) élastique(s) (24) de manière à accroître la rigidité de la portion d'extrémité de base (14F) de l'élément de contact élastique (14 ; 34).
  5. Un raccord de borne d'après une quelconque des revendications précédentes, sachant qu'une partie d'extrémité frontale d'une portion de support (16) sert de portion frontale genre cadre (20) ayant une haute rigidité en s'étendant continuellement sur toute la circonférence et/ou sachant qu'une partie d'extrémité arrière de la portion de support (16) sert de portion arrière genre cadre (21) ayant une haute rigidité en s'étendant continuellement sur toute la circonférence.
  6. Un raccord de borne d'après la revendication 5, sachant que l'élément de contact élastique (14 ; 34) est constitué dans la portion de paroi de support (18 ; 19 ; 39) par découpage et pliage, sachant qu'une zone découpée de l'élément de contact élastique (14 ; 34) dans les directions avant et arrière (FBD) essentiellement en parallèle à la direction d'insertion (ID) est une étendue allant de l'extrémité postérieure de la portion frontale genre cadre (20) à l'extrémité antérieure de la portion arrière genre cadre (21).
  7. Un raccord de borne d'après la revendication 5 ou 6, sachant qu'une portion d'extrémité de base (14F) de l'élément de contact élastique (14) est directement liée à la portion frontale genre cadre (20).
  8. Un raccord de borne d'après une quelconque des revendications précédentes, sachant qu'une extrémité saillante de l'élément de contact élastique (14 ; 34) et/ou une extrémité saillante de l'élément élastique (24 ; 42) est située de manière à être maintenue en contact avec ou faisant face à proximité à la surface intérieure de la portion tubulaire (13 ; 33).
  9. Un raccord de borne d'après une quelconque des revendications précédentes, sachant qu'une extrémité saillante de l'élément élastique (24) fait face essentiellement à une extrémité saillante de la portion de restriction (28) essentiellement le long de directions avant et arrière (FBD) essentiellement parallèles à la direction d'insertion (ID) tout en étant espacées l'une par rapport à l'autre.
  10. Un raccord de borne d'après une quelconque des revendications précédentes, sachant qu'une portion d'extrémité de base (14F) de l'élément de contact élastique (14 ; 34) est plus large qu'une zone derrière celle-ci et que la (les) partie(s) élargie(s) sert (/servent) notamment de paire de portion saillantes (23 ; 41) qui saillent dans le sens de la largeur (WD).
EP12006393.8A 2011-09-28 2012-09-11 Pose de terminal Not-in-force EP2575215B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011212626A JP5737112B2 (ja) 2011-09-28 2011-09-28 端子金具

Publications (2)

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EP2575215A1 EP2575215A1 (fr) 2013-04-03
EP2575215B1 true EP2575215B1 (fr) 2016-07-27

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ID=47172198

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Application Number Title Priority Date Filing Date
EP12006393.8A Not-in-force EP2575215B1 (fr) 2011-09-28 2012-09-11 Pose de terminal

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EP (1) EP2575215B1 (fr)
JP (1) JP5737112B2 (fr)

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DE102014118688A1 (de) * 2014-08-21 2016-02-25 Erni Production Gmbh & Co. Kg Kontaktelement und Steckverbinder
CN112956084B (zh) * 2018-06-07 2023-10-03 皇家精密制品有限责任公司 具有内部弹簧部件的电连接器组件

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JPS6356572U (fr) * 1986-09-30 1988-04-15
JP2003045536A (ja) * 2001-08-01 2003-02-14 Auto Network Gijutsu Kenkyusho:Kk 端子構造

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DE3510895A1 (de) * 1985-03-26 1986-10-09 Grote & Hartmann Rundsteckhuelse
EP0697752A3 (fr) * 1994-08-19 1996-05-29 Whitaker Corp Borne electrique femelle
JP3518178B2 (ja) * 1996-07-25 2004-04-12 住友電装株式会社 雌側端子金具
JP3319292B2 (ja) * 1996-07-26 2002-08-26 住友電装株式会社 雌側端子金具
US5938485A (en) * 1996-09-30 1999-08-17 The Whitaker Corporation Electrical terminal
US6293833B1 (en) * 2001-01-05 2001-09-25 Yazaki North America Low insertion force, high contact force terminal spring
US20060292937A1 (en) * 2005-06-23 2006-12-28 Morello John R Electrical connector having dual contact function spring contact terminal
EP2328236B1 (fr) * 2009-10-19 2012-08-15 Delphi Technologies, Inc. Elément de raccordement électrique
DE102010024525B4 (de) * 2010-06-21 2013-10-24 Fritz Stepper Gmbh & Co. Kg Elektrischer Buchsenkontakt

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JPS6356572U (fr) * 1986-09-30 1988-04-15
JP2003045536A (ja) * 2001-08-01 2003-02-14 Auto Network Gijutsu Kenkyusho:Kk 端子構造

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Publication number Publication date
EP2575215A1 (fr) 2013-04-03
JP5737112B2 (ja) 2015-06-17
JP2013073817A (ja) 2013-04-22

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