WO2015033952A1 - メス端子 - Google Patents
メス端子 Download PDFInfo
- Publication number
- WO2015033952A1 WO2015033952A1 PCT/JP2014/073175 JP2014073175W WO2015033952A1 WO 2015033952 A1 WO2015033952 A1 WO 2015033952A1 JP 2014073175 W JP2014073175 W JP 2014073175W WO 2015033952 A1 WO2015033952 A1 WO 2015033952A1
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- WO
- WIPO (PCT)
- Prior art keywords
- flat plate
- bead
- female terminal
- plate portion
- box
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/183—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/188—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 having an uneven wire-receiving surface to improve the contact
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
Definitions
- the present invention relates to a female terminal used for a connector or the like.
- a female terminal 301 as shown in FIG. 12 is known (see Patent Documents 1 and 2 below).
- the female terminal 301 is manufactured by forming a flat metal material into a predetermined shape and then bending the material.
- the female terminal 301 includes a box-shaped portion 305 in which a bead 303 is formed. Inside the box-shaped portion 305, a leaf spring portion [leaf spring portion] (elastic portion [resilient portion]) 307 facing the bead 303 is provided.
- the male tab [male tab] of the male terminal [male terminal] inserted into the box-shaped portion 305 is sandwiched between the bead 303 and the leaf spring portion 307, the female terminal 301 and the male terminal are connected to each other.
- the bead 303 is provided only at the center in the width direction of the bottom wall 309 of the box-shaped portion 305 (see Patent Document 3 below).
- the bead 303 is formed only at the center in the width direction of the bottom wall 309. Therefore, the contact area between the male tab and the bead 303 is small, and there is a concern that the electrical conductivity between the female terminal 301 and the male terminal is reduced. Is done.
- a pair of side walls 311 and 313 are raised from both edges of the bottom wall 309. Since the bead 303 is formed only at the center in the width direction of the bottom wall 309, a gap 315 is formed between one end of the bead 303 and one side wall 311. Similarly, a gap 317 is also formed between the other end of the bead 303 and the other side wall 313. For this reason, the bending process between the bottom wall portion 309 and the side walls 311 and 313 is difficult to perform, and the female terminal 301 is difficult to manufacture.
- An object of the present invention is a female terminal formed by forming a flat conductive material into a predetermined shape and then bending the material, and a female terminal that is easy to manufacture and has good electrical conductivity. Is to provide.
- a feature of the present invention is a female terminal manufactured by forming a flat conductive material into a predetermined shape and then bending the raw material, and includes a first flat plate portion, a second flat plate portion, and a third flat plate shape.
- a rectangular tubular box-shaped portion formed by a portion and a fourth flat plate-shaped portion, a bead formed by projecting a part of the first flat plate-shaped portion inside the box-shaped portion, and the box
- a female terminal is provided in which the third flat plate portion is raised from the first flat plate portion at the other end in the width direction of the bead.
- the bead is formed over the entire width of the first flat plate-like portion.
- the bead is interrupted at the center in the width direction of the first flat plate portion.
- the bead is formed by causing shear strain at the one end and the other end.
- the amount of protrusion of the central portion along the terminal connection direction of the bead to the inside of the box-shaped portion is larger than the amount of protrusion of both ends along the terminal connection direction of the bead to the inside of the box-shaped portion. Small is preferable.
- an arc-shaped convex portion protruding toward the bead is formed at the tip of the elastic portion.
- FIG. 5 is a cross-sectional view taken along line VV in FIG. 4.
- FIG. 6 is a sectional view taken along line VI-VI in FIG. 5.
- A) is a front view of the female terminal which concerns on a modification
- (b) is the XB-XB sectional view taken on the line in (a).
- (A) is a front view of a female terminal according to another modification
- (b) is a cross-sectional view taken along line XIB-XIB in (a). It is sectional drawing of the connector provided with the conventional female terminal and the male terminal. It is a front view of the female terminal.
- the female terminal 1 according to the embodiment will be described below with reference to FIGS.
- the female terminal 1 is housed and used in a terminal housing hole of an insulating female connector housing (not shown).
- the female terminal 1 in the female connector housing is connected to the male terminal in the male connector housing.
- the female terminal 1 of the present embodiment is a small terminal, and outer dimensions L1 and L2 (see FIG. 1) of a rectangular box-shaped portion 3 described later are several millimeters.
- the female terminal 1 is manufactured by forming a flat conductive material such as metal into a predetermined shape and then bending the material 5 (see FIG. 7).
- the female terminal 1 includes a box-shaped portion 3, a bead 7, and an elastic portion (elastic piece [resilient tab] / leaf spring portion) 9 (see FIG. 5).
- the box-shaped portion 3 includes an elongated rectangular first flat plate portion [first flat-plate portion] 11, an elongated rectangular second plate portion 13, an elongated rectangular third plate portion 15, and an elongated shape. It has a rectangular fourth flat plate-like portion 17 and has a rectangular cylindrical shape [hollow square cylinder shape] (hollow rectangular shape [hollow cuboid shape]).
- the second flat plate portion 13 is extended at an angle of 90 ° from one edge along the longitudinal direction (terminal connection direction) of the first flat plate portion 11.
- the third flat plate portion 15 extends from the other edge along the longitudinal direction of the first flat plate portion 11 at an angle of 90 °.
- the fourth flat plate portion 17 extends at an angle of 90 ° from one edge along the longitudinal direction of the third flat plate portion 15 (the opposite edge to the bonding edge with the first flat plate portion 11).
- the longitudinal directions of the flat plate-like portions 11, 13, 15 and 17 coincide with the extending direction of the central axis of the box-like portion 3, and the width directions of the flat plate-like portions 11, 13, 15 and 17 are the above-described extending directions. It is a right angle to it.
- the first flat plate portion 11 and the fourth flat plate portion 17 face each other in parallel.
- the second flat plate portion 13 and the third flat plate portion 15 are also opposed to each other in parallel.
- a slight gap 19 is formed between the open edge of the second flat plate portion 13 and the open edge of the fourth flat plate portion 17.
- the second flat plate portion 13 and the fourth flat plate portion 17 may be in contact with each other.
- the bead 7 is formed by protruding a part of the first flat plate-like portion 11 to the inside of the box-like portion 3. Therefore, the bead 7 forms a part of the box-shaped portion 3 (first flat plate-shaped portion 11).
- the elastic part 9 extends in a cantilevered manner from the second flat plate-like part 13 into the box-like part 3.
- a male tab (not shown) of a male terminal inserted into the box-shaped part 3 is sandwiched between the elastic part 9 and the bead 7.
- the material 5 when forming the box-shaped portion 3, the material 5 is made into a predetermined portion (the boundary between the first flat plate portion 11 and the second flat plate portion 13, and the first flat plate portion 11 and the third flat plate portion.
- the second flat plate portion 13 is raised from the first flat plate portion 11 at one end in the width direction of the bead 7, and the other end in the width direction of the bead 7.
- the third flat plate portion 15 is raised from the first flat plate portion 11. That is, the material 5 is bent starting from one end and the other end in the width direction of the bead 7, and the first flat plate portion 11, the second flat plate portion 13, and the third flat plate portion 15 are formed.
- one end in the width direction of the bead 7 coincides with the boundary between the first flat plate portion 11 and the second flat plate portion 13, and the other end in the width direction of the bead 7 is the first flat plate portion 11 and the third flat plate. It coincides with the boundary with the shape portion 15.
- a quarter arc-shaped bent portion 21 having a small curvature radius is formed, and the bead 7 formed on the first flat plate portion 11 is formed.
- One end is in contact with the bent portion 21.
- a quarter arc-shaped bent portion 21 having a small curvature radius is formed between the first flat plate portion 11 and the third flat plate portion 15, and the other end of the bead 7 is connected to the bent portion 21. It touches. Note that one end or the other end of the bead 7 may enter the region of the bent portion 21. In this case, in the region where the bead 7 is inserted, the bent portion 21 can have a 1/8 arc shape or the like.
- the female terminal 1 is provided with a core caulking portion [core crimping portion] 23 and a sheath caulking portion [sheath crimping portion] 25 (see FIGS. 1 to 3).
- the core wire caulking portion 23 caulks the core wire of the electric cable [cable], the core wire and the female terminal 1 are electrically connected, and the female terminal 1 is fixed to the core wire as a secondary. Further, the sheath of the electric wire (and the inner core wire) is crimped by the sheath crimping portion 25, and the female terminal 1 is fixed to the cable.
- the bead 7 is formed over the entire width of the first flat plate-like portion 11 (see FIG. 4, FIG. 10A, etc.).
- the protruding amount of the bead 7 from the first flat plate portion 11 is constant along the width direction of the first flat plate portion 11.
- the bead 7 is formed in the middle of the first flat plate portion 11 in the longitudinal direction.
- the protruding amount of the bead 7 from the first flat plate portion 11 is large at both end portions 29 and 31 in the longitudinal direction of the first flat plate portion 11 and small at the central portion 33.
- the protruding amount of the bead 7 may be constant along the longitudinal direction of the first flat plate-like portion 11. As shown in FIG.
- the elastic portion 9 extended from the second flat plate-like portion 13 is formed in an elongated rectangular shape.
- the elastic portion 9 is slightly inclined or parallel to the first flat plate portion 11 (fourth flat plate portion 17).
- the elastic part 9 is inclined so that the tip of the elastic part 9 approaches the first flat plate-like part 11.
- the width of the elastic portion 9 is made narrower than the width of the bead 7.
- FIG. 4 shows, the center of the bead 7 and the center of the elastic part 9 are mutually corresponded along the width direction.
- An arcuate convex portion [convex ⁇ ⁇ portion] 27 protruding toward the bead 7 on the first flat plate-like portion 11 is formed at the tip of the elastic portion 9.
- the convex portion 27 faces the bead 7.
- the convex part 27 has substantially opposed the center part 33 with a small protrusion amount.
- the male tab of the male terminal When the male tab of the male terminal is inserted into the box-shaped portion 3 of the female terminal 1 (between the bead 7 and the elastic portion 9), the male tab contacts the bead 7 and the convex portion 27, and the bead 7 and the elastic portion 9. Sandwiched between. At this time, the elastic portion 9 is pressed against the male tab by its own elastic force, and further presses the male tab against the bead 7. As a result, the female terminal 1 and the male terminal are electrically connected. In this connected state, one surface of the base end portion of the male tab is in contact with the end portion 29 (see FIG. 5) of the bead 7, and the other surface of the middle portion of the male tab is in contact with the convex portion 27 (see FIG. 5) of the elastic portion 9. One surface of the distal end portion of the male tab is in contact with the end portion 31 (see FIG. 5) of the bead 7. Therefore, the female terminal 1 and the male terminal are supported at three points, and a stable connection state is maintained.
- the bead 7 is not formed over the entire width of the first flat plate portion 11, and the center of the first flat plate portion 11 is not formed. May be interrupted.
- the protruding amount of the bead 7 from the first flat plate-like portion 11 is the largest at both ends in the width direction and is “0” at the center.
- the amount of protrusion at the center is smaller than the amount of protrusion at both ends, a form other than “0” may be used. By comprising in this way, since a male tab is supported similarly to the three-point support mentioned above in the width direction, the stable connection state is maintained.
- protrusion amount of each bead 7 is constant along a longitudinal direction, protrusion amount may be changed as FIG. 5 shows.
- the beads 7 are formed by press-working (drawing). At this time, as shown in FIG. 6, the bead 7 may be formed by generating a shear strain (permanent strain) in the material 5 at both ends thereof (half piercing process [half piercing] -piercing], half-punching, and half-shearing). A portion 35 shown in FIG. 6 is a portion where shear strain occurs.
- the shift amount L3 due to the shear strain is desirably smaller than the thickness t1 of the material 5. If both ends of the bead 7 are formed in this way, both ends of the bead 7 are likely to be the bending start points of the second flat plate portion 13 and the third flat plate portion 15, so that the female terminal 1 can be manufactured more easily.
- FIGS. 8 and 9 show a female terminal 351 according to a reference example.
- a bead 357 is formed only at the center in the width direction of the first flat plate portion 355 of the box-shaped portion 353, similarly to the conventional female terminal (see FIGS. 12 and 13).
- the second flat plate portion 13 is raised from the first flat plate portion 11 at one end in the width direction of the bead 7, and the other end in the width direction of the bead 7.
- the third flat plate portion 15 is raised from the first flat plate portion 11. Therefore, the bead 7 of the female terminal 1 described above is wider than the bead 357 of the female terminal 351 of the reference example, and the male tab of the male terminal inserted into the box-shaped part 3 is replaced with the elastic part 9 and the wide bead 7. Can be pinched. As a result, the electrical continuity between the female terminal 1 and the male terminal is improved.
- both ends in the width direction of the bead 7 function as a guide for bending the second flat plate portion 13 and the third flat plate portion 15. That is, both ends of the bead 7 function as bending guides, and the female terminal 1 is manufactured. Therefore, it becomes easy to bend the material 5 (see FIG. 7) having a predetermined shape. As a result, the female terminal 1 can be easily manufactured. Furthermore, in the female terminal 1 described above, the bead 7 is formed over the entire width of the first flat plate-like portion 11, so that the contact area between the bead 7 and the male tab of the male terminal can be increased, and the electrical conductivity is stabilized. .
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Abstract
メス端子は、平板導電性素材を所定形状に形成した後、前記素材を曲げ加工して製造される。メス端子は、第1平板状部、第2平板状部、第3平板状部及び第4平板状部により形成された、角型筒状の箱状部と、前記第1平板状部の一部を前記箱状部の内側に突出させて形成されたビードと、前記箱状部内に挿入されたオス端子のオスタブを、前記ビードと共に挟み込む弾性部と、を備えている。前記ビードの幅方向の一端で、前記第2平板状部が前記第1平板状部から立ち上げられ、前記ビードの幅方向の他端で、前記第3平板状部が前記第1平板状部から立ち上げられている。上記メス端子は、製造しやすく、オス端子との電気導通性が良好である。
Description
本発明は、コネクタなどに用いられるメス端子[female terminal]に関する。
図12に示されるようなメス端子301が知られている(下記特許文献1及び2参照)。メス端子301は、平板金属素材を所定形状に形成した、その後、この素材を曲げ加工して製造される。また、メス端子301は、ビード303が形成された箱状部[box-shaped portion]305を備えている。箱状部305の内部には、ビード303と対向する板バネ部[leaf spring portion](弾性部[resilient portion])307が設けられている。箱状部305内に挿入されたオス端子[male terminal]のオスタブ[male tab]がビード303と板バネ部307とで挟み込まれることで、メス端子301とオス端子とが互いに接続される。なお、図13に示されるように、ビード303は、箱状部305の底壁309の幅方向の中央にのみ設けられる(下記特許文献3参照)。
上述したメス端子301では、ビード303が底壁309の幅方向の中央にしか形成されないので、オスタブとビード303との接触面積が小さく、メス端子301とオス端子との電気導通性の低下が懸念される。
箱状部305では、底壁309の両縁から一対の側壁311及び313が立ち上げられている。ビード303が底壁309の幅方向の中央にしか形成されないので、ビード303の一端と一方の側壁311との間に空隙315が形成される。同様に、ビード303の他端と他方の側壁313との間にも空隙317が形成される。このため、底壁部309と側壁311及び313との間の曲げ加工が行いにくく、メス端子301を製造しにくい。
本発明の目的は、平板状導電性素材を所定形状に形成した後、この素材を曲げ加工して形成されるメス端子であって、製造しやすくオス端子と電気導通性が良好なメス端子を提供することである。
本発明の特徴は、平板導電性素材を所定形状に形成した後、前記素材を曲げ加工して製造されるメス端子であって、第1平板状部、第2平板状部、第3平板状部及び第4平板状部により形成された、角型筒状の箱状部と、前記第1平板状部の一部を前記箱状部の内側に突出させて形成されたビードと、前記箱状部内に挿入されたオス端子のオスタブを、前記ビードと共に挟み込む弾性部と、を備え、前記ビードの幅方向の一端で、前記第2平板状部が前記第1平板状部から立ち上げられ、前記ビードの幅方向の他端で、前記第3平板状部が前記第1平板状部から立ち上げられている、メス端子を提供する。
ここで、前記ビードが、前記第1平板状部の全幅にわたって形成されている、ことが好ましい。
あるいは、前記ビードが、前記第1平板状部の幅方向の中央で途切れている、ことが好ましい。
また、前記ビードが、前記一端及び前記他端に剪断歪を生じさせて形成されている、ことが好ましい。
また、前記ビードの端子接続方向に沿った中央部の前記箱状部の内側への突出量が、前記ビードの端子接続方向に沿った両端部の前記箱状部の内側への突出量よりも小さい、ことが好ましい。
ここで、前記弾性部の先端に、前記ビードに向けて突出された円弧状の凸部が形成されている、ことが好ましい。
実施形態に係るメス端子1について、図1~図7を参照しつつ以下に説明する。メス端子1は、絶縁性のメスコネクタハウジング(図示せず)の端子収容孔に収容されて使用される。メスコネクタハウジング内のメス端子1は、オスコネクタハウジング内のオス端子と接続される。本実施形態のメス端子1は、小型の端子であり、後述する矩形状の箱状部3の外形寸法L1及びL2(図1参照)が数ミリメートルである。
また、メス端子1は、金属等の平板導電性素材を所定形状に形成した後、この素材5(図7参照)を曲げ加工して製造される。メス端子1は、箱状部3と、ビード7と、弾性部(弾性片[resilient tab]/板バネ部)9(図5参照)とを備えている。
箱状部3は、細長い矩形状の第1平板状部[first flat-plate portion]11と、細長い矩形状の第2平板状部13と、細長い矩形状の第3平板状部15と、細長い矩形状の第4平板状部17とを備えており、角型筒形状[hollow square cylinder shape](中空直方体形状[hollow cuboid shape])を有している。
第2平板状部13は、第1平板状部11の長手方向(端子接続方向)に沿う一縁から90°の角度で延設されている。第3平板状部15は、第1平板状部11の長手方向に沿う他縁から90°の角度で延設されている。第4平板状部17は、第3平板状部15の長手方向に沿う一縁(第1平板状部11との接合縁に対する反対縁)から90°の角度で延設されている。
平板状部11,13,15及び17の長手方向は、箱状部3の中心軸の延伸方向と一致し、平板状部11,13,15及び17の各幅方向は、上述した延伸方向に対して直角である。第1平板状部11と第4平板状部17とは、互いに平行に対向している。第2平板状部13と第3平板状部15とも、互いに平行に対向している。第2平板状部13の開放縁と第4平板状部17の開放縁との間には僅かな間隙19が形成されている。ただし、第2平板状部13と第4平板状部17とは、互いに接していてもよい。
ビード7は、第1平板状部11の一部を箱状部3の内側に突出させることで形成されている。従って、ビード7は、箱状部3(第1平板状部11)の一部を形成している。弾性部9は、第2平板状部13から箱状部3の内部に片持ち状に延出されている。箱状部3内に挿入されたオス端子のオスタブ(図示せず)は、弾性部9とビード7とによって挟み込まれる。
メス端子1では、箱状部3を形成するときに、素材5を所定部(第1平板状部11と第2平板状部13との境界、及び、第1平板状部11と第3平板状部15との境界)で折り曲げやすくするために、ビード7の幅方向の一端で、第2平板状部13が第1平板状部11から立ち上げられ、ビード7の幅方向の他端で、第3平板状部15が第1平板状部11から立ち上げられている。即ち、ビード7の幅方向の一端及び他端を起点として、素材5が折り曲げられて、第1平板状部11、第2平板状部13及び第3平板状部15が形成される。結果として、ビード7の幅方向の一端が第1平板状部11と第2平板状部13との境界と一致し、ビード7の幅方向の他端が第1平板状部11と第3平板状部15との境界と一致する。
第1平板状部11と第2平板状部13との間には、曲率半径の小さな1/4円弧状の折り曲げ部21が形成され、第1平板状部11上に形成されたビード7の一端は、折り曲げ部21と接している。同様に、第1平板状部11と第3平板状部15との間にも、曲率半径の小さな1/4円弧状の折り曲げ部21が形成され、ビード7の他端は、折り曲げ部21と接している。なお、ビード7の一端や他端が折り曲げ部21の領域に入り込んでいてもよい。この場合、ビード7が入り込んでいる領域では、折り曲げ部21は1/8円弧状などになり得る。
メス端子1には、芯線カシメ部[core wire crimping portion]23とシースカシメ部[sheath crimping portion]25とが設けられている(図1~図3参照)。芯線カシメ部23よって電線[cable]の芯線がカシメられ、芯線とメス端子1とが電気的に接続されると共に、副次的に芯線にメス端子1が固定される。また、シースカシメ部25よって電線のシース(及びその内部の芯線)がカシメられ、ケーブルにメス端子1が固定される。
本実施形態のメス端子1では、ビード7が、第1平板状部11の全幅にわたって形成されている(図4、図10(a)等参照)。ビード7の第1平板状部11からの突出量は、第1平板状部11の幅方向に沿って一定である。なお、図5に示されるように、ビード7は、第1平板状部11の長手方向の中間に形成されている。また、ビード7の第1平板状部11からの突出量は、第1平板状部11の長手方向の両端部29及び31で大きく、中央部33で小さく。なお、図10(a)及び図10(b)に示される変形例のように、ビード7の突出量は、第1平板状部11の長手方向に沿って一定でもよい。
第2平板状部13から延出された弾性部9は、細長い矩形状に形成されている。弾性部9は、第1平板状部11(第4平板状部17)に対してやや傾けられるか、平行とされる。弾性部9がやや傾けられる場合、弾性部9の先端が第1平板状部11に近づくように傾けられる。また、弾性部9の幅は、ビード7の幅よりも狭くされている。ただし、図4に示されるように、幅方向に沿って、ビード7の中央と弾性部9の中央とは互いに一致されている。弾性部9の先端には、第1平板状部11上のビード7に向けて突出された円弧状の凸部[convex portion]27が形成されている。凸部27は、ビード7と対向している。図5に示されるように、凸部27は、突出量の小さい中央部33とほぼ対向している。
メス端子1の箱状部3(ビード7と弾性部9との間)にオス端子のオスタブが挿入されると、オスタブは、ビード7及び凸部27に接触して、ビード7及び弾性部9によって挟み込まれる。この時、弾性部9は、それ自身の弾性力によってオスタブに押し付けられ、さらに、オスタブをビード7に押し付ける。この結果、メス端子1とオス端子とが電気的に接続される。この接続状態では、オスタブの基端部の一面がビード7の端部29(図5参照)と接し、オスタブの中間部の他面が弾性部9の凸部27(図5参照)と接し、オスタブの先端部の一面がビード7の端部31(図5参照)と接する。従って、メス端子1とオス端子とは三点で支持され、安定した接続状態が維持される。
なお、図11(a)及び図11(b)に示される他の変形例のように、ビード7が、第1平板状部11の全幅にわたって形成されずに、第1平板状部11の中央で途切れていてもよい。この場合、ビード7の第1平板状部11からの突出量は幅方向の両端で最も大きく、中央で「0」である。なお、中央での突出量が両端での突出量より小さいが「0」ではない形態でもよい。このように構成することで、オスタブは幅方向で上述した三点支持と同様に支持されるので、安定した接続状態が維持される。なお、図11(b)では、各ビード7の突出量が長手方向に沿って一定であるが、図5で示されるように突出量が変化されてもよい。
ビード7は、プレス加工[press-working](絞り加工[drawing])で形成される。この際、図6で示されるように、ビード7は、その両端で素材5に剪断歪[shear strain](永久歪[permanent distortion])を発生させて形成されてもよい(ハーフピアス加工[half-piercing]、ハーフパンチ加工[half-punching]、ハーフシア加工[half-shearing]などとも呼ばれる)。図6に示される部分35は、剪断歪が発生する部分である。剪断歪によるずれ量L3は、素材5の厚さt1よりも小さいことが望ましい。ビード7の両端をこのように形成すると、ビード7の両端が第2平板状部13及び第3平板状部15の曲げ起点となりやすくなるので、メス端子1をより製造しやすくなる。
図8及び図9は、参考例に係るメス端子351を示している。メス端子351では、従来のメス端子(図12及び図13参照)と同様に、箱状部353の第1平板状部355の幅方向の中央にのみ、ビード357が形成されている。
これに対して、上述したメス端子1では、ビード7の幅方向の一端で、第2平板状部13が第1平板状部11から立ち上げられており、ビード7の幅方向の他端で、第3平板状部15が第1平板状部11から立ち上げられている。従って、上述したメス端子1のビード7は、参考例のメス端子351のビード357よりも幅広であり、箱状部3内に挿入されたオス端子のオスタブを、弾性部9及び幅広のビード7で挟み込むことができる。この結果、メス端子1とオス端子との電気導通性が良好になる。
また、上述したメス端子1では、ビード7の幅方向の両端が、第2平板状部13及び第3平板状部15の折り曲げのガイドとして機能する。即ち、ビード7の両端が折り曲げのガイドとして機能して、メス端子1が製造される。従って、所定形状の素材5(図7参照)の曲げ加工が行いやすくなる。この結果、メス端子1が製造しやすくなる。さらに、上述したメス端子1では、第1平板状部11の全幅にわたってビード7が形成されているので、ビード7とオス端子のオスタブとの接触面積を広げることができ、電気導通性が安定する。
日本国特許出願第2013-182685号(2013年9月4日出願)の全ての内容は、ここに参照されることで本明細書に援用される。本発明の実施形態を参照することで上述のように本発明が説明されたが、本発明は上述した実施形態に限定されるものではない。本発明の範囲は、請求の範囲に照らして決定される。
Claims (6)
- 平板導電性素材を所定形状に形成した後、前記素材を曲げ加工して製造されるメス端子であって、
第1平板状部、第2平板状部、第3平板状部及び第4平板状部により形成された、角型筒状の箱状部と、
前記第1平板状部の一部を前記箱状部の内側に突出させて形成されたビードと、
前記箱状部内に挿入されたオス端子のオスタブを、前記ビードと共に挟み込む弾性部と、を備え、
前記ビードの幅方向の一端で、前記第2平板状部が前記第1平板状部から立ち上げられ、前記ビードの幅方向の他端で、前記第3平板状部が前記第1平板状部から立ち上げられている、メス端子。 - 請求項1に記載のメス端子であって、
前記ビードが、前記第1平板状部の全幅にわたって形成されている、メス端子。 - 請求項1に記載のメス端子であって、
前記ビードが、前記第1平板状部の幅方向の中央で途切れている、メス端子。 - 請求項1~3の何れか一項に記載のメス端子であって、
前記ビードが、前記一端及び前記他端に剪断歪を生じさせて形成されている、メス端子。 - 請求項1~4の何れか一項に記載のメス端子であって、
前記ビードの端子接続方向に沿った中央部の前記箱状部の内側への突出量が、前記ビードの端子接続方向に沿った両端部の前記箱状部の内側への突出量よりも小さい、メス端子。 - 請求項5に記載のメス端子であって、
前記弾性部の先端に、前記ビードに向けて突出された円弧状の凸部が形成されている、メス端子。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013182685A JP2015050131A (ja) | 2013-09-04 | 2013-09-04 | メス端子 |
| JP2013-182685 | 2013-09-04 |
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| WO2015033952A1 true WO2015033952A1 (ja) | 2015-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2014/073175 Ceased WO2015033952A1 (ja) | 2013-09-04 | 2014-09-03 | メス端子 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS624077U (ja) * | 1985-06-25 | 1987-01-12 | ||
| JPH0584052U (ja) * | 1992-04-08 | 1993-11-12 | 菱星電装株式会社 | 接続端子 |
| JP2001110497A (ja) * | 1999-10-14 | 2001-04-20 | Sumitomo Wiring Syst Ltd | 端子金具 |
| JP2002063961A (ja) * | 2000-06-07 | 2002-02-28 | Yazaki Corp | 雌端子、及び、雌端子と雄端子との接続構造 |
| JP2007018763A (ja) * | 2005-07-05 | 2007-01-25 | Sumitomo Wiring Syst Ltd | 端子金具 |
| JP2011154944A (ja) * | 2010-01-28 | 2011-08-11 | Yazaki Corp | 雌型端子金具 |
-
2013
- 2013-09-04 JP JP2013182685A patent/JP2015050131A/ja active Pending
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2014
- 2014-09-03 WO PCT/JP2014/073175 patent/WO2015033952A1/ja not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS624077U (ja) * | 1985-06-25 | 1987-01-12 | ||
| JPH0584052U (ja) * | 1992-04-08 | 1993-11-12 | 菱星電装株式会社 | 接続端子 |
| JP2001110497A (ja) * | 1999-10-14 | 2001-04-20 | Sumitomo Wiring Syst Ltd | 端子金具 |
| JP2002063961A (ja) * | 2000-06-07 | 2002-02-28 | Yazaki Corp | 雌端子、及び、雌端子と雄端子との接続構造 |
| JP2007018763A (ja) * | 2005-07-05 | 2007-01-25 | Sumitomo Wiring Syst Ltd | 端子金具 |
| JP2011154944A (ja) * | 2010-01-28 | 2011-08-11 | Yazaki Corp | 雌型端子金具 |
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