JP6514926B2 - Terminal - Google Patents

Description

  The present invention relates to a terminal.

  DESCRIPTION OF RELATED ART The terminal provided with the several contact piece electrically contacted by making contact with the other party terminal accommodated in accommodation space is known (for example, refer patent document 1).

JP, 2013-232283, A

  A plurality of contact pieces of the above-mentioned terminal produce a cylindrical body which has a slot along the longitudinal direction in the inner wall by forging a metal rod, then cut and remove the outer wall of the cylindrical body to form a slit It is provided by doing. For this reason, the manufacturing process of a terminal becomes complicated and there exists a problem that manufacturing cost increases.

  The problem to be solved by the present invention is to provide a terminal whose manufacturing cost can be reduced.

  [1] A terminal according to the present invention includes a wire connecting member to which a wire is connected, a terminal connecting member to which a mating terminal is connected, and a reinforcing member inserted into the terminal connecting member, The connection member extends from the cylindrical support portion, a plurality of connection pieces extending from the one end of the support portion and arranged circumferentially at intervals, and extending from the other end of the support portion. A plurality of insertion pieces circumferentially spaced apart from each other, and the wire connection member has a hole into which the support portion and the insertion piece are inserted, The reinforcing member includes a main body having at least a part of a cross-sectional shape having a circular outer periphery, and the main body is a terminal housed in a housing space surrounded by the support and the insertion piece.

  [2] In the above invention, the wire connection member has a step formed in the hole, and at least one of the insertion pieces has a locking piece that locks onto the step. The reinforcing member may have a plurality of ridges projecting radially from the main body, and the ridges may enter a slit formed between the insertion pieces adjacent to each other. .

  [3] In the above invention, the main body portion has a body portion facing the support portion, an outer diameter relatively smaller than the outer diameter of the body portion, and a small diameter portion facing the insertion piece, , May be included.

  According to the present invention, since the terminal is manufactured by inserting the terminal connection member and the reinforcing member into the wire connection portion, the manufacturing process of the terminal can be simplified and the manufacturing cost can be reduced.

FIG. 1 is a perspective view showing a terminal according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view showing the wire connection member of the terminal in the first embodiment of the present invention. 3 (A) and 3 (B) are views showing the terminal connection member of the terminal in the first embodiment of the present invention, FIG. 3 (A) is a perspective view, and FIG. 3 (B) is FIG. It is sectional drawing which followed the IIIB-IIIB line of (A). FIG. 4 is a view on arrow IV in FIG. FIG. 5 is a perspective view showing a reinforcing member in the first embodiment of the present invention. 6 is a cross-sectional view taken along the line VI-VI of FIG. FIG. 7 is a perspective view showing a modification of the reinforcing member in the first embodiment of the present invention. FIGS. 8A to 8D are perspective views respectively showing manufacturing steps of the terminal in the first embodiment of the present invention. FIG. 9A and FIG. 9B are cross-sectional views respectively showing manufacturing steps of the terminal in the first embodiment of the present invention. FIG. 10 is a cross-sectional view showing the terminal in the first embodiment of the present invention. FIG. 11 is a perspective view showing a reinforcing member in the second embodiment of the present invention. FIG. 12 is a cross-sectional view along the line XII-XII in FIG. 13 (A) and 13 (B) are cross-sectional views showing steps of manufacturing a terminal in the second embodiment of the present invention. FIG. 14 is a cross-sectional view showing a terminal in the second embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described based on the drawings.

<< First Embodiment >>
FIG. 1 is a perspective view showing a terminal in the first embodiment, FIG. 2 is a cross-sectional view showing a wire connecting member of the terminal in the first embodiment, and FIGS. 3 (A) and 3 (B) are first It is a perspective view and sectional view showing a terminal connection member of a terminal in an embodiment, respectively, and Drawing 4 is an IV direction arrow line view of Drawing 1. Drawing 4 is a perspective view showing a terminal connection member of a terminal in an embodiment.

  The terminal 1 in the present embodiment is, for example, a terminal (female terminal) used for a charging connector mounted on the vehicle side of an electric vehicle. The terminal 1 is inserted into the wire connection member 2 to which the electric wire 51 is connected at the time of mounting, the terminal connection member 3 to which the mating terminal 5 is connected, and the terminal connection member 3, and the wire connection member 2 and the terminal connection member And 3) a reinforcing member 4 for reinforcing the connection with 3. In addition, the other party terminal 5 in this embodiment has a cylindrical shape which can be inserted in the terminal connection member 3 of the terminal 1, as shown in FIG.

  As shown in FIG. 2, the wire connecting member 2 has a cross-sectional shape that is rotationally symmetrical about the central axis C1, and the first attaching portion 21 to which the terminal connecting member 3 and the reinforcing member 4 are attached. And a second attachment portion 22 to which the electric wire 51 (see FIG. 1) is attached at the time of mounting. The first attachment portion 21 and the second attachment portion 22 of the wire connection member 2 are integrally formed as a whole. As a material which comprises this electric wire connection member 2, metal materials, such as copper alloys, such as pure copper and brass, aluminum, stainless steel, can be illustrated.

  A hole 210 is formed in the first attachment portion 21. The hole 210 includes a small diameter portion 211 having a circular cross section with an inner diameter R1, and a large diameter portion 212 having a circular cross section with an inner diameter R2 (R2> R1), which is larger than the inner diameter R1. The small diameter portion 211 is provided on the large diameter portion 212 side in the −Y direction in FIG. 2. On the inner wall at the boundary between the small diameter portion 211 and the large diameter portion 212, a step 215 is formed over the entire circumference due to the difference in the inner diameter thereof. The terminal connection member 3 is inserted into the hole 210, and the terminal connection member 3 is fixed to the wire connection member 2 by using the step 215. A tapered shape 213 is formed at the end of the small diameter portion 211 over the entire circumference. The presence of the tapered shape 213 facilitates the insertion operation when attaching the terminal connection member 3 to the first attachment portion 21. The hole 210 in the present embodiment corresponds to an example of the hole of the present invention.

  The second mounting portion 22 is formed with a hole 220 having a predetermined inner diameter corresponding to the diameter of the conductor of the electric wire 51. A tapered shape 214 is formed at the end of the hole 220 over the entire circumference. At the time of mounting of the terminal 1, the conductor of the electric wire 51 is inserted into the inside of the hole 220, and the second mounting portion 22 is crimped from the outer periphery and crimped, whereby the conductor and the second mounting portion 22 are Conduction is achieved. The presence of the tapered shape 214 facilitates the insertion operation when attaching the electric wire 51 to the second attachment portion 22.

  As the electric wire 51 attached to the 2nd attaching part 22, the twisted wire formed by twisting several thin wires comprised from metal materials, such as copper and aluminum, a single wire etc. can be illustrated. In the present embodiment, the second mounting portion 22 is separated from the first mounting portion 21 by the partition wall 23 so that the intrusion of water or the like from the terminal connection member 3 side to the electric wire 51 can be suppressed.

  The terminal connection member 3 is formed in a substantially cylindrical shape as a whole as shown in FIG. 3A, and has a cylindrical support portion 31, a first connection piece 32 supported by the support portion 31, and the terminal connection member 3. A second connection piece 33 and a first insertion piece 34 and a second insertion piece 35 supported by the support portion 31 are provided.

  In the present embodiment, the first and second connection pieces 32 and 33 are connected by the support portion 31 at the proximal end of the first and second connection pieces 32 and 33, and are spaced apart from each other, and are circular. It is arranged circumferentially. The first and second insertion pieces 34, 35 are also connected by the support portion 31 at the proximal end of the first and second insertion pieces 34, 35, and are circumferentially spaced apart from each other. ing. And the slit 36 is formed between the insertion pieces 34 and 34 (or the insertion pieces 34 and 35) which mutually adjacent | abut.

  The first and second connection pieces 32 and 33 are provided so as to extend from the support portion 31 to the counterpart terminal 5 side (the -Y direction side in FIG. 3A). On the other hand, the first and second insertion pieces 34 and 35 are provided so as to extend from the support portion 31 to the electric wire 51 side (the + Y direction side in FIG. 3A). In the present embodiment, the support portion 31 has a substantially constant width along the circumferential direction D. Further, inside the terminal connection member 3, an insertion space 30 into which the mating terminal 5 is inserted is formed, and an accommodation space 301 in which the reinforcing member 4 is accommodated is formed.

  As a material which comprises the terminal connection member 3, the metal material which has a Young's modulus relatively high with respect to the Young's modulus of the material which comprises the electric wire connection member 2 is preferable. As such a material, a magnesium-containing copper alloy (preferably MSP-1), beryllium copper, phosphor bronze and the like can be exemplified. In the present embodiment, the support portion 31, the first and second connection pieces 32, 33, and the first and second insertion pieces 34, 35 are integrally formed.

  In the terminal connection member 3 in the present embodiment, as shown in FIG. 4, the first connection pieces 32 and the second connection pieces 33 are arranged at substantially equal intervals along the circumferential direction D of the insertion space 30. In addition, along the circumferential direction D, the first connection pieces 32 and the second connection pieces 33 are alternately arranged. Thereby, when inserting the other party terminal 5 in the insertion space 30, the operation | work which aligns the central axis of the said other party terminal 5 and the insertion space 30 becomes easy. In the present embodiment, the first connection piece 32 and the second connection piece 33 have substantially equal widths (widths along the circumferential direction D), but the present invention is not particularly limited thereto. The second connection pieces 32, 33 may have different widths.

  In the present embodiment, the terminal connection portion 3 includes a total of four first connection pieces 32 and a total of four second connection pieces 33. However, the first connection pieces 32 included in the terminal connection portion 3 The number of the second connection pieces 33 is not particularly limited to the above. Further, the arrangement of the first and second connection pieces 32 and 33 supported by the support portion 31 is not particularly limited to the above. Note that from the viewpoint of improving the alignment accuracy (center axis alignment) accuracy and connection reliability when connecting the terminal 1 to the other party terminal 5, as in the present embodiment, the first number of terminal connection portions 3 is four. It is preferable to have a connection piece 32 and four second connection pieces 33.

  A first connection piece 32 is formed by being bent so as to be convex toward the central axis C2 side, as shown in FIG. 3B, at the end of the first connection piece 32. The contact portion 321 is provided. In the first contact portion 321, the first connection piece 32 is closest to the central axis C2 of the terminal connection member 3, and when connected to the opposite terminal 5, the first contact is made to the side of the opposite terminal 5. The portion 321 is in contact and electrical connection is made.

  Similarly, as shown in FIG. 3 (B), the second connection piece 33 is also bent and formed so as to be convex toward the central axis C2 side, as shown in FIG. 3B. A second contact portion 331 is provided, and in the second contact portion 331, the second connection piece 33 is closest to the central axis C2 of the terminal connection member 3. At the time of connection with the opposite terminal 5, the second contact portion 331 is in contact with the side of the opposite terminal 5, and electrical connection is made.

  In addition, the form in particular of the 1st and 2nd contact parts 321 and 331 is not limited above. For example, the tips of the first and second connection pieces 32 and 33 may be bent inward in a U-shape to form the first and second contact portions 321 and 331, respectively. Further, for example, the first and second contact portions 321 and 331 are respectively formed by providing inward projections or thick portions at the tips of the first and second connection pieces 32 and 33. May be

  In the present embodiment, as shown in FIG. 3B, the first contact portion 321 is relative to the second contact portion 331 at the distal end side of the terminal connection member 3 (in FIG. 3B). It is located on the -Y direction side). Further, the length L1 of the first connection piece 32 along the central axis C2 direction of the terminal connection member 3 is different from the length L2 of the second connection piece 33 along the central axis C2 of the terminal connection member 3 It is relatively long (L1> L2). In the present embodiment, since the positions of the proximal ends of the first and second connection pieces 32 and 33 (the positions along the central axis C2 direction) are substantially the same, the tip of the first connection piece 32 is the second It is located in the front end side (the -Y direction side in FIG. 3 (B)) relatively to the front end portion of the connection piece 33. Thus, alignment (center axis alignment) when connecting the terminal 1 to the other party's terminal 5 is facilitated, and pressing force required when inserting the other party's terminal 5 into the insertion space 30 can be reduced. .

  Further, as shown in FIG. 4, the first contact portion 321 is located on the central axis C2 side of the terminal connection member 3 relatively to the second contact portion 331. That is, the diameter of the imaginary circle W1 in contact with the first contact portion 321 is relatively smaller than the diameter of the imaginary circle W2 in contact with the second contact portion 331. The diameters of these imaginary circles W1 and W2 are smaller than the diameter R5 of the mating terminal 5 (see FIG. 1). Therefore, when the terminal 1 is connected to the mating terminal 5, the tip end portions of the first and second connection pieces 32 and 33 are respectively spread outward in the radial direction by the mating terminal 5, and Thus, the mating terminal 5 is elastically held by the first and second connection pieces 32 and 33.

  As shown in FIG. 3 (A) or 3 (B), the first insertion piece 34 extends from the support portion 31 in the + Y direction in the drawing, and in the present embodiment, two first first pieces are inserted. An insertion piece 34 is provided on the terminal connection member 3. The two first insertion pieces 34 are arranged to face each other via the central axis C2 of the terminal connection member 3. The number of first insertion pieces 34 provided in the terminal connection member 3 is not particularly limited. For example, three or four first insertion pieces 34 may be provided at substantially equal intervals along the circumferential direction of the terminal connection member 3.

  On the outer surface of the distal end portion of the first insertion piece 34, a locking piece 341 that protrudes outward in the radial direction of the terminal connection member 3 is provided. When attaching the terminal connection member 3 to the wire connection member 2, the engagement piece 341 engages with the step 215 (see FIG. 2) between the small diameter portion 211 and the large diameter portion 212 in the electric wire connection member 2. Therefore, while the diameter R3 of the support portion 31 of the terminal connection member 3 excluding the locking piece 341 is smaller than the diameter R1 of the small diameter portion 211 of the wire connection member 2 (R3 <R1) The maximum diameter R4 of the connection member 3 is larger than the diameter R1 of the small diameter portion 211 of the wire connection member 2 and smaller than the diameter R2 of the large diameter portion 212 (R1 <R4 <R2). Further, the length of the locking piece 341 along the central axis C2 of the terminal connection member 3 is less than the length of the large diameter portion 212 of the wire connection member 2. The diameter R3 of the support portion 31 of the terminal connection member 3 is smaller than that of the small diameter portion 211 of the wire connection member 2 from the viewpoint of improving the stability when the terminal connection member 3 is attached to the wire connection member 2. It is preferable that the size is close to the diameter R1 so as to be insertable.

  The second insertion pieces 35 are arranged between the first insertion pieces 34 at three equal intervals along the circumferential direction D three by three. The width of the second insertion piece 35 is narrower than the width of the first insertion piece 34, and the length of the second insertion piece 35 along the central axis C2 of the terminal connection member 3 Is relatively short with respect to the length of the first insertion piece 34. The number of second insertion pieces 35 provided between the first insertion pieces 34 is not particularly limited to the above.

  As shown in FIG. 3A, a projection 351 that protrudes outward in the radial direction of the terminal connection member 3 is provided at the tip of the second insertion piece 35. The projection 351 is arranged to abut on the inner wall of the small diameter portion 211 of the wire connection member 2 when the terminal connection member 3 is attached to the wire connection member 2. In the present embodiment, one protrusion 351 is provided for one second insertion piece 35, but the number of the protrusions 351 provided on the second insertion piece 35 is not particularly limited. Moreover, although the protrusion 351 in this embodiment is hemispherical, the shape in particular of the said protrusion 351 is not limited to this, either.

  Further, in the present embodiment, the first and second insertion pieces 34, 35 and the above-described first and second connection pieces 32, 33 have a substantially constant width along the central axis C2 of the terminal connection member 3. Although each has, it is not particularly limited to this. For example, the first and second insertion pieces 34, 35 or the first and second connection pieces 32, 33 may have non-uniform widths along the central axis C2.

  An accommodation space 301 is formed inside the terminal connection member 3 in the present embodiment by being surrounded by the support portion 31 and the first and second insertion pieces 34 and 35, and a reinforcement member is formed in the accommodation space 301. 4 are accommodated.

  FIG. 5 is a perspective view showing a reinforcing member in the present embodiment, and FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG.

  The reinforcing member 4 in the present embodiment, as shown in FIG. 5 or FIG. 6, has a main body portion 41 having a cylindrical shape, and a convex streak portion 414 provided on the outer periphery of the main body portion 41. As a material which comprises the reinforcement member 4, metal materials, such as copper alloys, such as pure copper and brass, aluminum, stainless steel, can be illustrated. In the present embodiment, the main body 41 and the ridges 414 are integrally configured. Further, the total length L4 of the reinforcing member 4 in the present embodiment is substantially equal to the depth S of the hole 210 of the wire connection member 2 (L4 ≒ S).

  The main body 41 includes a body 411 and a small diameter portion 412. The body 411 has a straight cylindrical shape with an outer diameter R6. The outer diameter R6 has a diameter close to the inner diameter R7 (see FIG. 3B) of the terminal connection member 3 as far as the trunk portion 411 can be accommodated in the accommodation space 301 of the terminal connection member 3. For this reason, the play in the accommodation space 301 of the said trunk | drum 411 when the trunk | drum 411 is accommodated in the accommodation space 301 of the terminal connection member 3 is very small. A tapered shape 413 is formed at the end of the body 411 in the present embodiment, whereby the workability at the time of housing the reinforcing member 4 in the housing space 301 is improved.

  The small diameter portion 412 is provided on the rear end side (the partition 23 side of the wire connection member 2) of the trunk portion 411, and has a tapered shape in which the outer diameter gradually decreases toward the rear end portion 412a. Therefore, the outer diameter R8 at the rear end portion 412a is smaller than the outer diameter R6 of the body 411 (R8 <R6). The difference ΔR (ΔR = R6-R8) between the outer diameter R8 at the rear end portion 412a and the outer diameter R6 of the body 411 is the height of the locking piece 341 provided on the first insertion piece 34 of the terminal connection member 3. It is possible to allow the elastic deformation of the first insertion piece 34 when inserting the terminal connection member 3 into the hole portion 210 of the wire connection member 2 which is larger than the height of twice the height. .

  In the present embodiment, the outer diameter of the portion of the small diameter portion 412 corresponding to the second insertion piece 35 is relatively smaller than the outer diameter of the portion of the small diameter portion 412 corresponding to the first insertion piece 34 Although it has become (refer to Drawing 9 (A)-Drawing 10), it is not limited in particular to this. For example, the outer diameter of the small diameter portion 412 may be the same over the entire circumference.

  In the present embodiment, the length L3 of the small diameter portion 412 is the length L5 of the first insertion piece 34 of the terminal connection member 3 (the length from the tip of the first insertion piece 34 to the support 31). B) (refer to B.) (L3 ≒ L5).

  In addition, although the main-body part 41 of the reinforcement member 4 in this embodiment has cylindrical shape, it is not specifically limited to this. For example, as in a reinforcing member 4B shown in FIG. 7, the main body portion 41 may have a solid cylindrical shape. In this case, the terminal connecting member 3 can be stably held by the wire connecting member 2 by improving the rigidity of the reinforcing member 4. Further, although not particularly illustrated, the main body portion of the reinforcing member 4 may have a shape in which a cylindrical shape and a cylindrical shape are connected (that is, an open bottomed shape).

  In the present embodiment, as shown in FIG. 5, a plurality of ridges 414 are provided on the outer periphery of the small diameter portion 412. The ridges 414 have a shape extending along the direction of the central axis C3 of the reinforcing member 4 and project outward in the radial direction of the reinforcing member 4. The width (the width along the circumferential direction of the reinforcing member 4) of the convex streak portion 414 is narrower than the width of the slit 36 of the terminal connection member 3. Further, the total length (length along the central axis C3 direction) of the ridges 414 is substantially equal to the length L3 (see FIG. 6) of the small diameter portion 412 of the reinforcing member 4. For this reason, when the reinforcing member 4 is accommodated in the accommodation space 301, the end 415 of the ridge 414 is engaged with the support 31 at the end of the slit 36 in the terminal connection member 3.

  In the present embodiment, the small-diameter portion 412 is provided with the same number of convex streaks 414 as the number of slits 36 in the terminal connection member 3. The ridges 414 enter all the slits 36, and the end portions 415 of the ridges 414 are engaged with the support portions 31. By this locking, it is possible to prevent the reinforcing member 4 from falling off the terminal 1 after the reinforcing member 4 is housed in the housing space 301 and the terminal 1 is assembled. In addition, the shape of the ridge portion 414 may have an end portion 415 to be locked to the support portion 31 and may not necessarily have a length substantially equal to the length L3 of the small diameter portion 412. . Moreover, the number in particular of the ridges 414 which the reinforcing member 4 has is not limited to the above.

  Next, a method of manufacturing the terminal in the present embodiment will be described. FIGS. 8A to 8D are perspective views respectively showing manufacturing steps of the terminal in the present embodiment, and FIGS. 9A and 9B show manufacturing steps of the terminal in the present embodiment. FIG. 10 is a cross-sectional view (a view corresponding to a cross-sectional view taken along the line PP in FIG. 4), and FIG. 10 is a cross-sectional view showing a terminal in the present embodiment Is a diagram corresponding to

  First, as shown in FIG. 8A, a plate-like member made of a metal material for forming the terminal connection member 3 is stamped out, and a first piece shape 611 corresponding to the first connection piece 32 is formed. A second piece shape 612 corresponding to the second connection piece 33, a third piece shape 613 corresponding to the first insertion piece 34, and a fourth piece shape 614 corresponding to the second insertion piece 35, respectively. The first processed body 61 is produced.

  Next, as shown in FIG. 8B, the first processed body 61 is subjected to press processing to form a second processed body 62. Specifically, the first contact portion 321 is formed at the tip of the first piece shape 611, and the second contact portion 331 is formed at the tip of the second piece shape 612. Further, the locking piece 341 is formed at the tip of the third piece shape 613, and the protrusion 351 is formed at the tip of the fourth piece shape 614.

  Subsequently, as shown in FIG. 8C, the terminal connection member 3 is formed by processing the second processed body 62 into a cylindrical shape so that the outer diameter of the support portion 31 becomes a predetermined outer diameter R3. . At this time, by making the width of the support portion 31 in the terminal connection member 3 substantially constant along the circumferential direction, it is possible to improve processing accuracy when processing the second processed body 62 into a cylindrical shape.

  Further, although not shown in the drawings, the wire connection member 2 and the reinforcing member 4 are manufactured in parallel with the formation of the terminal connection member 3. Specifically, the wire connecting member 2 and the reinforcing member 4 are respectively manufactured by cutting a rod-like member made of a metal material for forming the wire connecting member 2 and the reinforcing member 4 respectively.

  Then, while inserting the ridges 414 of the reinforcing member 4 into the slits 36 in the terminal connection member 3, the reinforcement 4 is accommodated in the housing space 301 of the terminal connection 3, and the ridges 414 are engaged with the support 31. Let's stop. Then, in this state, the terminal connection member 3 and the reinforcing member 4 are inserted into the hole 210 of the wire connection member 2.

  Immediately after the terminal connecting member 3 and the reinforcing member 4 are inserted into the hole 210, as shown in FIG. 9A, the maximum diameter R4 of the terminal connecting member 3 in the locking piece 341 (before insertion into the hole 210). 3B) is larger than the diameter R1 (see FIG. 2) of the small diameter portion 211 of the hole 210, the first insertion piece 34 of the terminal connection member 3 is directed toward the center of the hole 210. A bending stress is generated. Under the present circumstances, since the reinforcement member 4 has the small diameter part 412, since the curve of the 1st insertion piece 34 to the center side of the hole 210 is accept | permitted, the said 1st insertion piece 34 slightly It elastically deforms so as to curve toward the center side of the hole 210.

  Subsequently, as shown in FIG. 9B, the terminal connection member 3 and the reinforcing member 4 are further pushed toward the bottom of the hole 210 in a state in which the first insertion piece 34 is elastically deformed. Then, when the locking piece 341 of the first insertion piece 34 reaches the large diameter portion 212 of the hole 210, the elastic deformation of the locking piece 341 is released by the large diameter portion 212, and the locking piece 341 is a hole. It is locked to the step 215 of the part 210. Thus, the reinforcing member 4 is accommodated in the accommodation space 301 of the terminal connection member 3.

  At this time, as shown in FIG. 10, the protrusion 351 provided at the tip of the second insertion piece 35 abuts on the inner wall of the small diameter portion 211 of the wire connection member 2. Thereby, the electrical connection between the terminal connection member 3 and the wire connection member 2 is achieved.

  Through the above steps, the wire connection member 2 and the terminal connection member 3 are fixed to each other, and the terminal connection member 3 and the wire connection member 2 are electrically connected to complete the terminal 1 in the present embodiment. .

  Next, the operation of the terminal 1 in the present embodiment will be described.

  The terminal 1 of the present embodiment forms the terminal connection member 3 by processing the second processed body 62 manufactured by punching and pressing a plate-like member into a cylindrical shape. Then, the terminal 1 is manufactured by inserting the terminal connection member 3 into the hole 210 of the wire connection member 2 in a state where the reinforcing member 4 is housed in the housing space 301 of the terminal connection member 3. As a result, the first and second connection pieces 32, 33 and the like for connecting to the opposite terminal 5 can be easily formed. For this reason, compared with the case where the whole terminal is manufactured by a cutting process etc., it becomes possible to simplify the manufacturing process of terminal 1, and manufacturing cost can be reduced.

  Further, since the reinforcing member 4 is accommodated in the accommodation space 301 of the terminal connection member 3, the terminal connection member 3 is more firmly fixed to the wire connection member 2, and the temperature of the terminal 1 at the time of connection with the opposite terminal 5. It is possible to suppress the rise.

  That is, for example, when the mating terminal 5 is inserted into the insertion space 30 of the terminal connection member 3 in a state of being inclined with respect to the central axis direction (the Y axis direction in FIG. 1) of the terminal 1, the mating terminal 5 As a result of the inclination, the stress is generated in the terminal connection member 3 and the terminal connection member 3 is in a state of being slightly elastically deformed. As a result, the contact state between the projection 351 of the second insertion piece 35 in the terminal connection member 3 and the inner wall of the small diameter portion 211 of the wire connection member 2 becomes uneven, whereby the contact between the projection 351 and the inner wall of the small diameter portion 211 There is a case where the temperature of the terminal 1 is excessively increased at a portion where the force is relatively weak.

  On the other hand, in the present embodiment, the reinforcing member 4 is accommodated in the accommodation space 301. For this reason, even when the mating terminal 5 is inserted into the insertion space 30 of the terminal connection member 3 in a tilted state, the terminal connection member 3 is elastically deformed by the stress generated along with the tilting of the mating terminal 5. It is possible to suppress it. This makes it possible to maintain the contact between the projection 351 of the second insertion piece 35 of the terminal connection member 3 and the inner wall of the small diameter portion 211 of the wire connection member 2 in a uniform state, so the temperature rise of the terminal 1 Can be suppressed.

<< Second Embodiment >>
11 is a perspective view of a reinforcing member provided in the terminal in the second embodiment, FIG. 12 is a cross-sectional view along the line XII-XII in FIG. 11, and FIGS. 13 (A) and 13 (B) are It is sectional drawing (figure corresponded to sectional drawing along the PP line of FIG. 4) which shows the manufacturing process of the terminal in 2 embodiment, respectively, and FIG. 14 is sectional drawing (FIG. 4) which shows the terminal in 2nd Embodiment. A cross-sectional view taken along the line QQ of FIG.

  The terminal 1B in the second embodiment is the same as the first embodiment described above except that the configuration of the reinforcing member 4C is different from the first embodiment, so only the parts different from the first embodiment will be described. About the part same as 1st Embodiment, the code | symbol same as 1st Embodiment is attached | subjected, and description is abbreviate | omitted.

  As shown in FIG. 11, the reinforcing member 4C in the present embodiment has a main body portion 41 and a ridge portion 414, and the main body portion 41 is constituted by a trunk portion 411 and a small diameter portion 412B. The main body 41 has a cylindrical shape, but as described with reference to FIG. 7 in the first embodiment, the main body 41 may have a cylindrical shape.

  As shown in FIG. 12, the small diameter portion 412B has a straight cylindrical shape having an outer diameter R9 smaller than the outer diameter R6 of the trunk portion 411 (R9 <R6). The difference ΔR (ΔR = R6-R9) between the outer diameter R9 and the outer diameter R6 of the body 411 is the elasticity of the first insertion piece 34 when the terminal connection member 3 is inserted into the hole 210 of the wire connection member 2. In order to allow deformation, the height is greater than twice the height of the locking piece 341 provided on the first insertion piece 34.

  Also in this embodiment, as in the first embodiment, the outer diameter of the portion of the small diameter portion 412B facing the second insertion piece 35 is the outside of the portion of the small diameter portion 412B facing the first insertion piece 34. Although it is relatively small with respect to the diameter (see FIG. 13A to FIG. 14), it is not particularly limited thereto. For example, the outer diameter of the small diameter portion 412B may be the same over the entire circumference.

  In the present embodiment, the length L3 of the small diameter portion 412B is the length L5 of the first insertion piece 34 of the terminal connection member 3 (the length from the tip of the first insertion piece 34 to the support 31). B) (refer to B.) (L3 ≒ L5). A plurality of ridges 414 are provided on the outer periphery of the small diameter portion 412B, and the end portions 415 of the ridges 414 are engaged with the support 31 at all the slits 46 in the terminal connection member 3 .

  Even when the terminal 1B including the reinforcing member 4C in the present embodiment is manufactured, as shown in FIG. 13A, immediately after the terminal connecting member 3 and the reinforcing member 4C are inserted into the hole 210, the locking pieces 341 are provided. The maximum diameter R4 (diameter before insertion into the hole 210. See FIG. 3B) of the terminal connection member 3 in the terminal is larger than the diameter R1 (see FIG. 2) of the small diameter portion 211 of the hole 210. A stress is generated in the first insertion piece 34 of the connection member 3 so as to be curved toward the center of the hole 210. At this time, since the reinforcing member 4C has the small diameter portion 412B, the bending of the first insertion piece 34 toward the center of the hole 210 is allowed, so the first insertion piece 34 is slightly It elastically deforms so as to curve toward the center side of the hole 210.

  Subsequently, as shown in FIG. 13B, in a state where the first insertion piece 34 is elastically deformed, the terminal connection member 3 and the reinforcing member 4C are further pushed toward the bottom of the hole 210. Then, when the locking piece 341 of the first insertion piece 34 reaches the large diameter portion 212 of the hole 210, the elastic deformation of the locking piece 341 is released by the large diameter portion 212, and the locking piece 341 is a hole. It is locked to the step 215 of the part 210. Thereby, the reinforcing member 4 </ b> C is accommodated in the hole 210 of the wire connection member 2.

  At this time, as shown in FIG. 14, the projection 351 provided at the tip of the second insertion piece 35 abuts on the inner wall of the small diameter portion 211 of the wire connection member 2. Thereby, the electrical connection between the terminal connection member 3 and the wire connection member 2 is achieved.

  Also in the terminal 1B in the present embodiment, the same effects as the effects of the terminal 1 described in the first embodiment can be obtained.

  The embodiments described above are described to facilitate the understanding of the present invention, and are not described to limit the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents that fall within the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1, 1B ... Terminal 2 ... Wire connection member 21 ... 1st attachment part 210 ... Hole part 211 ... Small diameter part
213 ... taper shape 215 ... level difference 212 ... large diameter part
214: taper shape 22: second attachment portion 23: partition wall 3: terminal connection member 32: first connection piece 321: first contact portion 33: second connection piece 331: second contact portion 34: second contact portion 1 insertion piece 341: locking piece 35: second insertion piece 351: projection 36: slit 4, 4B, 4C: reinforcing member 41: main body 411: body section 412, 412B: small diameter section 413: taper shape 414 ... Convex part 415 ... end 5 ... partner terminal 51 ... electric wire 61 ... first processed body 62 ... second processed body

Claims (3)

A wire connecting member to which a wire is connected;
A terminal connection member to which the other party's terminal is connected;
And a reinforcing member inserted into the terminal connection member,
The terminal connection member is
A cylindrical support,
A plurality of connection pieces extending respectively from one end of the support portion and arranged circumferentially at mutually spaced intervals;
A plurality of insertion pieces extending respectively from the other end of the support and spaced apart from each other;
The wire connection member has a hole into which the support portion and the insertion piece are inserted,
The reinforcing member includes a main body having a cross-sectional shape with a circular outer periphery at least in part,
The main body portion is housed in a housing space surrounded by the support portion and the insertion piece ,
Furthermore, the wire connection member has a step formed in the hole,
At least one of the insertion pieces has a locking piece that locks onto the step,
The reinforcing member has a plurality of ridges projecting radially from the main body,
The convex strip portion is a terminal which is inserted into a slit formed between the insertion pieces adjacent to each other . The terminal according to claim 1 , wherein
The body portion is
A body facing the support;
A small diameter portion having a relatively small outer diameter with respect to the outer diameter of the body portion and facing the insertion piece;
Terminal including. A wire connecting member to which a wire is connected;
A terminal connection member to which the other party's terminal is connected;
And a reinforcing member inserted into the terminal connection member,
The terminal connection member is
A cylindrical support,
A plurality of connecting pieces extending respectively from one end of the support portion and arranged circumferentially at mutually spaced intervals;
A plurality of insertion pieces extending respectively from the other end of the support and spaced apart from each other;
The wire connection member has a hole into which the support portion and the insertion piece are inserted,
The reinforcing member includes a main body having a cross-sectional shape with a circular outer periphery at least in part,
The main body portion is housed in a housing space surrounded by the support portion and the insertion piece,
Furthermore, the main body portion is
A body facing the support;
A small diameter portion having a relatively small outer diameter with respect to the outer diameter of the body portion and facing the insertion piece;
Terminal including.

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