JP6263290B1 - Terminal - Google Patents

Abstract

A terminal capable of improving the electrical connection between terminals and the stability of the insertion / extraction force is provided. A terminal 1 includes a wire connecting member 10 and a terminal connecting member 40. The terminal connecting member 40 includes a connecting portion 50 having a cylindrical shape with an end and an insertion piece protruding from the connecting portion 50 along the axial direction Ca1. 60 and a connection piece 70 protruding from the connecting portion 50 in a direction opposite to the insertion piece 60, and the electric wire connecting member 10 includes a first hole portion into which the connecting portion 50 and the insertion piece 60 are inserted. The plurality of insertion pieces 60 include a pair of first insertion pieces 61 that are closest to both end portions 51 and 52 in the circumferential direction Cd1 of the connecting portion 50 among the plurality of insertion pieces 60, The first insertion piece 61 has a first protrusion 611, the connecting portion 50 has a second protrusion 531 in the first region 53, and the first and second protrusions 611 and 531 It protrudes toward 50 radially outward Ro1. [Selection] Figure 4

Description

  The present invention relates to a terminal.

  There is known a plug connector including a cylindrical member and a cylindrical contact member accommodated in the cylindrical member (see, for example, Patent Document 1). The cylindrical contact member is formed by processing a flat member into a cylindrical shape.

JP 2008-70139 A

  When connecting the plug connector to the receptacle connector, the connecting strip of the cylindrical contact member comes into surface contact with the cylindrical member of the receptacle connector. However, in the case where the cylindrical contact member is accommodated in an incomplete cylindrical shape in the cylindrical member, the connecting strip-shaped portion cannot be brought into surface contact appropriately with the cylindrical member of the receptacle connector, The contact will be uneven. For this reason, there exists a problem that the electrical connection of connectors may become unstable and the insertion / extraction force of a connector may increase.

  The problem to be solved by the present invention is to provide a terminal capable of improving the electrical connection between the terminals and the stability of the insertion / extraction force.

  [1] A terminal according to the present invention is a terminal including a line connecting member and a terminal connecting member, and the terminal connecting member is connected to a connecting portion having a cylindrical shape with ends and an axial direction of the connecting portion. A plurality of insertion pieces projecting from the coupling portion; and a plurality of connection pieces projecting from the coupling portion in a direction opposite to the insertion piece, the wire connecting member including the coupling portion and the insertion A plurality of the insertion pieces include a pair of first insertion pieces closest to both end portions in the circumferential direction of the connecting portion among the plurality of insertion pieces; Each of the first insertion pieces has a first protrusion, and each of the coupling portions has a second protrusion in a first region corresponding to the first insertion piece in the axial direction, The first and second protrusions are terminals protruding outward in the radial direction of the connecting portion. A.

  [2] In the above invention, the height of the first protrusion and the height of the second protrusion may be substantially the same.

  [3] In the above invention, the second protrusion may be provided in the connecting portion so as to face a portion in the vicinity of the opening of the concave portion in the wire connecting member.

  [4] In the above invention, the first protrusion and the second protrusion may be aligned along the axial direction.

  [5] In the above invention, the plurality of insertion pieces include at least one second insertion piece interposed between the first insertion pieces in the circumferential direction, and the second insertion piece includes a third insertion piece. The third protrusion may protrude outward in the radial direction of the connecting portion.

  [6] In the above invention, the connecting portion has a fourth protrusion in a second region corresponding to the second insertion piece in the axial direction, and the fourth protrusion is formed on the connecting portion. You may protrude toward the radial direction outer side.

  [7] In the above invention, the height of the third protrusion and the height of the fourth protrusion may be substantially the same.

  [8] In the above invention, the fourth protrusion may be provided in the connecting portion so as to face a portion in the vicinity of the opening of the concave portion in the wire connecting member.

  [9] In the above invention, the third protrusion and the fourth protrusion may be aligned along the axial direction.

  [10] In the above invention, the connecting portion may have a protruding piece protruding along the circumferential direction on at least one of the both end portions, and the protruding piece may have an arcuate tip portion. Good.

  According to the present invention, since the first protrusion is provided on the first insertion piece and the second protrusion is provided in the first region of the connecting portion, electrical connection and insertion / extraction between the terminals is possible. The stability of force can be improved.

FIG. 1 is a perspective view showing a terminal in an embodiment of the present invention. FIG. 2 is a cross-sectional view of the wire connecting member in the embodiment of the present invention, and is a view of the wire connecting member cut along its longitudinal direction. FIG. 3 is a perspective view of the terminal connection member in the embodiment of the present invention. FIG. 4 is a development view of the terminal connection member shown in FIG. 3. FIG. 5 is an enlarged view of both end portions in the circumferential direction of the terminal connection member shown in FIG. 3. 6 is a cross-sectional view taken along line VI-VI in FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. FIG. 9A to FIG. 9D are diagrams showing a method for manufacturing a terminal in the embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing terminals in the present embodiment.

  The terminal 1 in this embodiment is a terminal (female terminal) used for the charging connector mounted on the vehicle side of the electric vehicle, for example. As shown in FIG. 1, the terminal 1 is composed of two members, that is, a wire connecting member 10 and a terminal connecting member 40, and the terminal 1 is inserted by inserting the terminal connecting member 40 into the wire connecting member 10. Is formed. An electric wire 110 is connected to the electric wire connecting member 10, and a counterpart terminal (male terminal) 120 having a cylindrical shape is connected to the terminal connecting portion 40.

  FIG. 2 is a cross-sectional view of the wire connecting member in the present embodiment.

As shown in FIG. 2, the wire connecting member 10 has a cross-sectional shape that is rotationally symmetric about the central axis Ca ₀ , and includes two mounting portions 20 and 30. The terminal connection member 40 is attached to the first attachment portion 20, while the electric wire 110 is attached to the second attachment portion 30. The electric wire connecting member 10 is integrally formed as a whole. Examples of the material constituting the wire connecting member 10 include copper alloys such as pure copper and brass, and metal materials such as aluminum and stainless steel. Various surface treatments may be applied to the surface of the wire connecting member 10.

A first hole portion 21 is formed in the first attachment portion 20 so as to extend along the central axis Ca ₀ of the wire connecting member 10. The first hole portion 21 is open at the end portion on the −Y direction side of the first mounting portion 20, and has a small diameter portion 22 and a large diameter portion 23. The small diameter portion 22 is provided on the −Y direction side with respect to the large diameter portion 23. The inner diameter of the large-diameter portion 23 is larger than the inner diameter of the small-diameter portion 22, and as a result, there is a step 24 between the small-diameter portion 22 and the large-diameter portion 23 on the entire circumference of the first hole portion 21. It is formed over. The terminal connection member 40 is inserted and fixed in the first hole portion 21 (see FIGS. 1 and 9D). A tapered surface 26 is formed over the entire circumference of the first hole 21 at the end of the small diameter portion 22 on the opening 25 side, and terminal connection to the first hole 21 is made by the tapered surface 26. The insertion operation of the member 40 is facilitated. The 1st hole 21 of electric wire connection member 20 in this embodiment is equivalent to an example of the crevice of the electric wire connection member in the present invention.

The second hole 31 is also formed in the second mounting portion 30 so as to extend along the central axis Ca ₀ of the wire connecting member 10. The second hole 31 is open at the end on the + Y direction side of the second mounting portion 30 and has an inner diameter corresponding to the outer diameter of the conductor portion of the electric wire 110. In a state where the electric wire 110 is inserted into the second hole 31, the electric wire connecting member 10 is crimped from the outside and the second mounting member 30 and the electric wire 110 are crimped, so that the electric wire 110 is attached to the electric wire connecting member 10. Fixed. A tapered surface 32 is also formed over the entire circumference of the second hole portion 31 at the opening side end portion of the second hole portion 31, and an electric wire to the second hole portion 31 is formed by the tapered surface 32. The insertion operation of 110 is facilitated.

  The electric wire 110 attached to the second attachment part 30 is composed of a stranded wire formed by twisting a plurality of conductive wires, and as a specific example of a material constituting the strand, for example, And metal materials such as copper and aluminum. In addition, it may replace with a twisted wire and may comprise the electric wire 110 with a single wire. In the present embodiment, the first hole portion 21 and the second hole portion 31 are spatially partitioned by the partition wall 101, and the electric wire 110 is waterproofed by the partition wall 101.

  3 is a perspective view of the terminal connection member in the present embodiment, FIG. 4 is a development view of the terminal connection member shown in FIG. 3, FIG. 5 is an enlarged view of both end portions in the circumferential direction of the terminal connection member shown in FIG. 8 is a cross-sectional view of FIG.

  The terminal connection member 40 is formed by rounding a second processed body 92 (described later) into a cylindrical shape (see FIGS. 9B and 9C), as shown in FIGS. The connecting portion 50, the plurality of insertion pieces 60, and the plurality of connection pieces 70 are provided. An insertion space 401 for inserting the counterpart terminal 120 is formed inside the terminal connection member 40.

  In this embodiment, the connection part 50, the insertion piece 60, and the connection piece 70 are integrally formed. The material constituting the terminal connection member 40 is preferably made of a metal material having a relatively high Young's modulus relative to the Young's modulus of the material constituting the wire connection member 10. Examples of such a material include magnesium-containing copper alloy (preferably MSP-1), beryllium copper, phosphor bronze and the like. Various surface treatments may be applied to the surface of the terminal connection member 40.

  The connecting portion 50 has a cylindrical shape with ends, and connects a plurality of insertion pieces 60 and a plurality of connection pieces 70. Here, the “end cylindrical shape” is a shape in which a part of the circumferential wall of the cylinder is cut along the axial direction of the cylinder and has an end that is discontinuous in the circumferential direction of the cylinder. Means.

As shown in FIG.4 and FIG.5, the connection part 50 in this embodiment has a pair of protrusion pieces 511 and 521 in the both ends 51 and 52 which make a cylindrical shape discontinuous. Each protruding piece 511, 521 protrudes along the circumferential direction Cd ₁ of the connecting portion 50, and has arcuate tip portions 512, 522. In the state where the cylindrical terminal connection member 40 is formed, the tip portions 512 and 522 of the protruding pieces 511 and 521 are in contact with each other as shown in FIG. In addition, you may provide a protrusion piece only in the at least one edge part of a connection part.

As shown in FIG. 3, the plurality of insertion pieces 60 protrude from the connecting portion 50 in the + Y direction in the figure, and are arranged at substantially equal intervals along the circumferential direction Cd ₁ of the connecting portion 50. . Note that the interval between the insertion pieces 60 is not limited to an equal interval, and the plurality of insertion pieces 60 may be arranged at intervals from each other along the circumferential direction Cd ₁ of the connecting portion 50.

As shown in FIG. 4, a plurality of (eight in this example) insertion pieces 60 include two first insertion pieces 61, four second insertion pieces 62, and two third insertion pieces. And a piece 63. The first insertion piece 61 is two insertion pieces positioned closest to the end portions 51 and 52 of the connecting portion 50 among the eight insertion pieces 60. On the other hand, the second and third insertion pieces 62 and 63 are insertion pieces arranged between the pair of first insertion pieces 61 in the circumferential direction Cd ₁ of the connecting portion 50. The arrangement order of the second and third insertion pieces 62 and 63 is not particularly limited, but the pair of third insertion pieces 63 is the center of the connecting portion 50 in a state where the cylindrical terminal connection member 40 is formed. The second and third insertion pieces 62 and 63 are preferably arranged so as to face each other via the axis Ca ₁ .

Each first insertion piece 61 has a first protrusion 611 at the tip (the end on the + Y direction side) of the first insertion piece 61. As shown in FIG. 6, the first protrusion 611 protrudes toward the radially outer side Ro ₁ of the connecting portion 50 and has a height h ₁ . The first protrusion 611 is in contact with the inner peripheral surface of the first hole portion 21 of the wire connecting member 10 in a state where the terminal connecting member 40 is inserted into the wire connecting member 10.

As shown in FIGS. 4 and 6, the connecting portion 50 also has a first region 53 (indicated by a two-dot chain line in FIG. 4) corresponding to the first insertion piece 61 along the central axis Ca ₁ . Two protrusions 531 are provided. The second protrusion 531 protrudes radially outward Ro ₁ of the connecting portion 50 has a height h _2. The height h ₂ of the second protrusion 531 is substantially the same as the height h ₁ of the first protrusion 611 (h ₂ = h ₁ ).

As shown in FIG. 4, the second protrusion 531 has an opening 25 (one point in FIG. 4) of the first hole 21 in the wire connecting member 10 in a state where the terminal connecting member 40 is inserted into the wire connecting member 10. It is provided in the first region 53 of the connecting portion 50 so as to oppose a portion in the vicinity of (indicated by a chain line) and is in contact with the inner peripheral surface of the first hole portion 21 of the wire connecting member 10. Further, the first protrusion 611 second protrusion 531 are aligned along the axial direction Ca _1.

Here, when the "axial in direction Ca ₁ first region 53 corresponding to the first insertion piece 61" and, which is translated along the first insertion piece 61 in the axial direction Ca _1, connecting portions 50, an area that overlaps with the first insertion piece 61 and means an area having substantially the same width as the first insertion piece 61.

Each of the second insertion pieces 62 also has a third protrusion 621 at the tip (end on the + Y direction side) of the second insertion piece 62. As shown in FIG. 7, the third protrusion 621 protrudes toward the radially outer side Ro ₁ of the connecting portion 50 and has a height h ₃ . The third protrusion 621 also contacts the inner peripheral surface of the first hole portion 21 of the wire connecting member 10 in a state where the terminal connecting member 40 is inserted into the wire connecting member 10. In the present embodiment, the height h ₃ of the third protrusion 621 has a height h ₂ and substantially the same height h ₁ and the second protrusion 531 of the first protrusion 611 described above (H ₃ = h ₁ = h ₂ ), but not particularly limited thereto.

As shown in FIGS. 4 and 7, the connecting portion 50 also has a second region 54 (indicated by a two-dot chain line in FIG. 4) corresponding to the second insertion piece 62 along the central axis Ca ₁ . 4 projections 541. The fourth protrusion 541 also protrudes toward the radially outer side Ro ₁ of the connecting portion 50 and has a height h ₄ . The height h ₄ of the fourth protrusion 541 is substantially the same as the height h ₃ of the third protrusion 621 described above (h ₄ = h ₃ ).

Similarly to the second protrusion 531, the fourth protrusion 541 also has the first hole 21 in the wire connection member 10 in a state where the terminal connection member 40 is inserted into the wire connection member 10 as shown in FIG. 4. Is provided in the second region 54 of the connecting portion 50 so as to face the vicinity of the opening 25 (shown by the alternate long and short dash line in FIG. 4), and the inner periphery of the first hole portion 21 of the wire connecting member 10. It is in contact with the surface. Further, a third projection 621 and the fourth protrusion 541 are aligned along the axial direction Ca _1.

Here, when the "axial in direction Ca ₁ second region 54 corresponding to the second insertion piece 62" and, which is translated along the second insertion piece 62 in the axial direction Ca _1, connecting portions 50, an area that overlaps with the second insertion piece 62 and means an area having substantially the same width as the second insertion piece 62.

Each of the third insertion pieces 63 has a locking protrusion 631 at the tip (end on the + Y direction side) of the third insertion piece 63 instead of the protrusion. As shown in FIG. 8, the locking protrusion 631 is formed by bending a notched portion of the third insertion piece 63 toward the radially outer side Ro ₁ . When the terminal connecting member 40 is inserted into the first mounting portion 20 of the wire connecting member 10, the locking projection 631 is locked to the step 24 of the second hole portion 21, so that the terminal connecting member 40 is It is fixed to the wire connecting member 10.

As shown in FIGS. 4 and 8, the connecting portion 50 has a third region 55 (indicated by a two-dot chain line in FIG. 4) corresponding to the third insertion piece 63 along the central axis Ca ₁ . 5 projections 551. The fifth protrusion 551 also protrudes toward the radially outer side Ro ₁ of the connecting portion 50 and has a height h ₅ . In the present embodiment, the height of the height _{h 5} of the fifth protrusion 551 has a height _{h 1} of the first protrusion 611 described above, the height _{h 2} of the second protrusion 531, third protrusion 621 h _3, and, although a height _{h 4} substantially identical to the fourth protrusion _{541 (h 5 = h 1 =} h 2 = h 3 = h 4), is not particularly limited thereto.

Similarly to the second and fourth protrusions 531 and 541, the fifth protrusion 551 is also formed in the wire connection member 10 in a state where the terminal connection member 40 is inserted into the wire connection member 10 as shown in FIG. 4. The first hole portion 21 is provided in the third region 55 of the connecting portion 50 so as to face the vicinity of the opening 25 (indicated by the alternate long and short dash line in FIG. 4) of the first hole portion 21. It is in contact with the inner peripheral surface of the hole 21. Therefore, in the present embodiment, the second protrusion 531, the fourth protrusion 541, and the fifth protrusion 551 provided in the connecting portion 50 are aligned along the circumferential direction Cd ₁ of the connecting portion 50.

Here, when the "axial in direction Ca ₁ third region 55 corresponding to the third insertion piece 63" and, which is translated along a third insertion piece 63 in the axial direction Ca _1, connecting portions 50, an area that overlaps with the third insertion piece 63, and means an area that has substantially the same width as the third insertion piece 63. Note that the fifth protrusion 551 may not be provided in the third region 55 of the connecting portion 50.

As shown in FIG. 3, the plurality of connecting pieces 70 protrude from the connecting portion 50 in a direction opposite to the protruding direction of the insertion piece 60 (−Y direction in the drawing). The connection pieces 70 are also arranged at substantially equal intervals along the circumferential direction Cd ₁ of the connecting portion 50, and the first to third insertion pieces 61 to 63 are arranged along the central axis Ca ₁ of the connecting portion 50. Located on one of the extension lines. The arrangement of the contact piece 70 is not particularly limited thereto, it may be arranged at a distance from one another along the circumferential direction Cd ₁ of the plurality of connecting pieces 70 connecting portion 50.

As shown in FIG. 4, the plurality of (eight in this example) connection pieces 70 include four first connection pieces 71 and four second connection pieces 72. The length L ₂ of the second connection piece 72 along the central axis Ca ₁ of the connecting member 50 is relatively longer than the length L _{1 of} the first connection piece 71 (L ₂ > L ₁ ). The first connection pieces 71 and the second connection pieces 72 are alternately arranged, and when the counterpart terminal 120 is inserted into the insertion space 401, it is easy to align the counterpart terminal 120 and the insertion space 401. It has become.

  In the present embodiment, the width of the first connection piece 71 and the width of the second connection piece 72 are substantially the same, but the present invention is not particularly limited thereto, and the first and second connection pieces 71, The widths of 72 may be different from each other. In addition, as long as the 1st connection piece 71 and the 2nd connection piece 72 are arrange | positioned alternately, the number of the connection pieces 70 is not specifically limited above.

  Each first connection piece 71 has a first contact portion 711 at the tip of the first connection piece 71. The first contact portion 711 is formed by bending the tip portion of the first connection piece 71 into a convex shape. Each of the second connection pieces 72 also has a second contact portion 721 at the tip of the second connection piece 72. The second contact portion 721 is formed by bending the tip portion of the second connection piece 72 into a convex shape.

  When the counterpart terminal 120 is inserted into the terminal 1, the counterpart terminal 120 is held by the terminal 1 by being held between the first and second connection pieces 71 and 72. In addition, the first and second contact portions 711 and 721 are in contact with the side surface of the counterpart terminal 120, whereby the terminal 1 and the counterpart terminal 120 are electrically connected.

  In addition, the shape of the 1st and 2nd contact parts 711 and 721 is not specifically limited to said shape. For example, the first and second contact portions 711 and 721 may be formed by bending the tips of the first and second connection pieces 71 and 72 into a U shape. Further, for example, the first and second contact portions 711 and 721 may be formed by providing protrusions and thick portions at the tips of the first and second connection pieces 71 and 72.

  Next, a method for manufacturing a terminal in the present embodiment will be described with reference to FIGS. 9 (a) to 9 (d). FIG. 9A to FIG. 9D are perspective views showing the manufacturing process of the terminal in this embodiment.

  First, as shown to Fig.9 (a), the 1st process body 91 is formed by giving the cutting process by stamping with respect to the plate-shaped member which consists of a metal material for forming the terminal connection member 40. FIG. By this cutting process, the first piece shape 911 corresponding to the insertion piece 60, the second piece shape 912 corresponding to the connection piece 70, and the first and second protruding pieces 511, 521 are formed. . In addition, the cutting process with respect to a plate-shaped member is not specifically limited to punching, For example, cutting etc. may be sufficient.

  Next, as shown in FIG. 9B, the first processed body 91 having a flat shape is pressed to form a second processed body 92. By this pressing, the connecting portion 50 having the protrusions 531 to 551, the insertion pieces 61 to 63 having the protrusions 611 and 621 or the locking protrusion 631, and the connection pieces 71 and 72 having the contact portions 711 and 721 are formed. Is done.

  Next, as shown in FIG. 9C, the cylindrical processed terminal connecting member 40 is formed by bending the second processed body 92. In this bending process, as shown in FIG. 5, the tip portions 511 and 522 of the projecting pieces 511 and 521 are brought into contact with each other.

  Next, although not particularly illustrated, the wire connecting member 10 is formed by cutting a rod-shaped member made of a metal material. The formation of the wire connection member 10 may be performed before the formation of the terminal connection member 40 or may be performed in parallel with the formation of the terminal connection member 40.

Next, as shown in FIG. 9D, the wire connecting member 10 and the terminal connecting member 40 are attached to each other. Specifically, mutually to match the central axis Ca ₁ of the central axis Ca ₀ and the terminal connection member 40 of the wire connection member 10. Then, the connecting portion 50 and the insertion piece 60 of the terminal connection member 40 are inserted into the first hole portion 21 of the first attachment portion 20 of the wire connection member 10, and the locking protrusion 631 of the third insertion piece 63 is inserted. Is locked to the step 24 (see FIG. 2) of the wire connecting member 10. Thereby, the electric wire connection member 10 and the terminal connection member 40 are mutually fixed, and the terminal 1 in this embodiment is completed.

  Here, for example, when adopting a structure in which the first protrusion is provided in the insertion piece but the second protrusion is not provided in the connecting portion, the opening edge of the first hole portion of the wire connecting member is used as a fulcrum, The connecting piece may be inclined in the radial direction of the connecting portion, and the cylindrical shape of the terminal connecting member may be deformed. In particular, both end portions of the connecting portion of the terminal connection member are free ends, and the connection pieces adjacent to each other through the both end portions are more easily inclined than other connection pieces. A relative inclination of the connecting portion in the circumferential direction between the pieces may also occur incidentally, and the distance between the tips of the connection pieces may increase. Therefore, when such a structure is employed, the cylindrical shape of the terminal connection member is not stable, and as a result, the electrical connection with the counterpart terminal and the stability of the insertion / extraction force are poor.

  On the other hand, in the present embodiment, the first protrusions 611 are respectively provided on the pair of first insertion pieces 61, and the second protrusions 531 are also formed on the pair of first regions 53 of the connecting portion 50. Each is provided. That is, in this embodiment, the root portion of the connection piece 71 closest to the one end portion 51 of the connecting portion 50 is supported at two points with respect to the inner peripheral surface of the first hole portion 21 of the wire connection member 10. At the same time, the root portion of the connecting piece 72 closest to the other end 52 of the connecting portion 50 is supported at two points with respect to the inner peripheral surface of the first hole portion 21 of the wire connecting member 10.

Therefore, the connecting pieces 71 and 72 closest to the end portions 51 and 52 of the connecting portion 50 (that is, the connecting pieces 71 and 72 corresponding to the first insertion piece 61) in the radial direction of the connecting portion 50, Expansion of the distance w ₁ (see FIG. 5) between the tips of the connection pieces 71 and 72 can be suppressed, and the cylindrical shape of the terminal connection member 40 can be stabilized. Therefore, the electrical connection between the terminal 1 and the counterpart terminal 120 and the stability of the insertion / extraction force can be improved.

  In the present embodiment, in addition to the first and second protrusions 611 and 531, a third protrusion 621 is provided on the second insertion piece 62. By such first to third protrusions 611, 531, 612, the contact pressure of the insertion piece can be increased compared to the case where the insertion piece of the terminal connection member is in surface contact with the inner peripheral surface of the wire connection member, The stability of electrical connection between the terminal connection member 40 and the wire connection member 10 can be improved.

  In the present embodiment, in addition to the third protrusion 621, a fourth protrusion 541 is provided in the second region 54 of the connecting portion 50. Therefore, the base portions of the connection pieces 71 and 72 (that is, the connection pieces 71 and 72 corresponding to the second insertion piece 62) positioned on the extension line of the second insertion piece 62 can be supported at two points, respectively. Therefore, it can suppress that the said connection pieces 71 and 72 incline along the radial direction of the connection part 50. FIG.

Furthermore, in this embodiment, the front-end | tip parts 512 and 522 of the protrusion pieces 511 and 521 are circular. For this reason, even if the other end 52 is inclined relative to the one end 51 of the connecting portion 50, the end of the connection piece 71, 72 closest to the end 51, 52 of the connecting portion 50 is used. It is possible to suppress the interval w ₁ (see FIG. 5) from spreading greatly.

  On the other hand, when the protruding piece of the connecting portion is rectangular, even if the inclination of the other end portion with respect to the one end portion of the connecting portion is small, the relative protruding amount of the protruding piece with the inclination is small. Therefore, the distance between the tips of the connecting pieces closest to both ends of the connecting portion is greatly increased.

  The embodiment described above is described for facilitating the understanding of the present invention, and is not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Terminal 10 ... Electric wire connection member 101 ... Bulkhead 20 ... 1st attaching part 21 ... 1st hole part 22 ... Small diameter part 23 ... Large diameter part 24 ... Step 25 ... Opening 26 ... Tapered surface 30 ... 2nd attachment Part 31 ... Second hole 32 ... Tapered surface 40 ... Terminal connecting member 401 ... Insertion space 50 ... Connection part 51, 52 ... End part 511, 521 ... Projection piece
512, 522... Distal end portion 53-55... First to third regions 531 to 551... Second, fourth and fifth protrusions 60 .. insert piece 61-63 .. first to third insert pieces 611, 612 ... 1st, 2nd protrusion 631 ... Locking protrusion 70 ... Connection piece 71,72 ... 1st, 2nd connection piece 711,721 ... 1st, 2nd contact part 110 ... Electric wire 120 ... Mating terminal

Claims (10)

A terminal provided with a wire connecting member and a terminal connecting member,
The terminal connecting member is
A connecting portion having a cylindrical shape with ends;
A plurality of insertion pieces projecting from the connecting portion along the axial direction of the connecting portion;
A plurality of connection pieces projecting from the coupling portion in a direction opposite to the insertion piece,
The wire connecting member has a recess into which the connecting portion and the insertion piece are inserted,
The plurality of insertion pieces include a pair of first insertion pieces closest to both end portions in the circumferential direction of the connecting portion among the plurality of insertion pieces,
Each of the first insertion pieces has a first protrusion,
Each of the connecting portions has a second protrusion in a first region corresponding to the first insertion piece in the axial direction,
The first and second protrusions are terminals protruding outward in the radial direction of the connecting portion. The terminal according to claim 1,
A terminal in which the height of the first protrusion and the height of the second protrusion are substantially the same. The terminal according to claim 1 or 2,
The second protrusion is a terminal provided on the connecting portion so as to face a portion in the vicinity of the opening of the recess in the wire connecting member. The terminal according to any one of claims 1 to 3,
The first protrusion and the second protrusion are terminals aligned along the axial direction. The terminal according to any one of claims 1 to 4,
The plurality of insertion pieces include at least one second insertion piece interposed between the first insertion pieces in the circumferential direction,
The second insertion piece has a third protrusion,
The third protrusion is a terminal protruding outward in the radial direction of the connecting portion. The terminal according to claim 5, wherein
The connecting portion has a fourth protrusion in a second region corresponding to the second insertion piece in the axial direction;
The fourth protrusion is a terminal protruding outward in the radial direction of the connecting portion. The terminal according to claim 6, wherein
A terminal in which the height of the third protrusion and the height of the fourth protrusion are substantially the same. The terminal according to claim 6 or 7,
The fourth protrusion is a terminal provided in the connecting portion so as to face a portion in the vicinity of the opening of the concave portion in the wire connecting member. The terminal according to any one of claims 1 to 8,
The third protrusion and the fourth protrusion are terminals aligned along the axial direction. The terminal according to any one of claims 1 to 9,
The connecting portion has a protruding piece protruding along the circumferential direction on at least one of the both ends.
The protruding piece is a terminal having an arcuate tip.

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