JP6211564B2 - Terminals and connectors - Google Patents

Description

  The present invention relates to a connector terminal and a connector provided with such a terminal.

  A wide variety of electronic devices are mounted on a vehicle as a moving body. These electronic devices are connected by a wire harness in order to transmit electric power, a control signal, etc. between each other. Generally, a connector is attached to a terminal of a wire harness, and the connector is provided with a metal terminal (for example, refer to Patent Document 1). The connector is connected to the mating connector via a terminal.

  19 is a diagram showing an example of a conventional terminal provided in the connector, FIG. 20 is an enlarged view of a region A701 in FIG. 19, and FIG. 21 is a diagram of the connector shown in FIG. 20 is a cross-sectional view illustrating a V701-V701 cross section in FIG.

  The terminal 700 shown in FIGS. 19 to 21 is fixed to the distal end of an electric wire 72 that forms a wire harness (not shown) and is accommodated in a terminal accommodating chamber 73 a provided in the housing 73 of the connector 7. . The terminal 700 includes an electric wire fixing portion 710 that is fixed to the tip of the electric wire 72, and a terminal main body portion 720 that is electrically connected to the mating connector terminal.

  The terminal 700 is a female terminal into which a pin-shaped male terminal is inserted. The terminal main body 720 is formed in a rectangular tube shape, and is configured such that a male terminal is inserted from an opening 721 on the side opposite to the electric wire fixing portion 710.

  Here, a lance 73 b that enters the terminal main body 720 of the terminal 700 from the terminal accommodating chamber 73 a is provided in the terminal accommodating chamber 73 a of the housing 73 of the connector 7. An entry hole 722a for locking the lance 73b is provided in the bottom wall 722 of the terminal main body 720. The lance 73b is formed to be elastically deformable. When the terminal 700 is inserted into the terminal accommodating chamber 73a of the housing 73, the terminal 700 is elastically deformed and passes through the terminal main body portion 720. When the entry hole 722a reaches the position of the lance 73b, the terminal 700 is restored to the inside of the terminal main body portion 720. Enter and lock. Due to the locking of the lance 73b, the terminal 700 is accommodated in the terminal accommodating chamber 73a in a state of being prevented from coming off.

  The terminal main body 720 is provided with the following plate spring 723 as a structure for electrical connection with the inserted male terminal. The leaf spring portion 723 is formed in a band shape from the edge 722b on the opening 721 side in the bottom wall 722 and is folded back to the inside of the terminal body portion 720 at the edge 722b.

  The leaf spring portion 723 has an end portion 723 a that abuts on a shelf 725 provided at a position closer to the ceiling wall 724 than the bottom wall 722. Further, the leaf spring portion 723 has a shape bent convexly toward the ceiling wall 724 from the edge 722b to the end portion 723a of the bottom wall 722, which is the starting point of folding. The leaf spring portion 723 is elastically deformed so that the contact portion 723b provided at the top of the bent shape moves in the contact / separation direction D701 with respect to the bottom wall 722 with the end portion 723a in contact with the shelf 725. It is possible.

  When the mating male terminal is inserted into the opening 721, the contact portion 723 b in the leaf spring portion 723 comes into contact with the male terminal and is pressed by the male terminal, so that the contact portion 723 b approaches the bottom wall 722. It is elastically deformed. The leaf spring portion 723 is in contact with the male terminal with the contact load due to the restoring force of the elastic deformation at the contact portion 723b and presses the male terminal to the ceiling wall 724 facing the bottom wall 722. The contact between the male terminal and the leaf spring portion 723 and the contact between the male terminal and the ceiling wall 724 in a state of being pressed by the leaf spring portion 723 causes the terminal main body portion 720 (that is, the terminal 700) to be male. Electrically connected to the terminal.

  Further, as shown in FIG. 21, the terminal main body 720 of the terminal 700 is formed by bending a metal plate into a square tube shape, and the ceiling wall 724 has both end portions 724a of the metal plate. Are stacked.

Japanese Patent No. 4586714

  Here, in the terminal 700 shown in FIGS. 19 to 21, when the mating male terminal is inserted, the contact part 723b of the leaf spring part 723 is pushed by the male terminal as described above. The leaf spring portion 723 is elastically deformed so as to approach the wall 722. At this time, if the amount of deformation of the leaf spring portion 723 is large, there is a risk of interference with the lance 73b entering from the entry hole 722a of the bottom wall 722. On the other hand, the electrical connection between the terminal 700 and the mating male terminal bears a contact load based on a restoring force when the leaf spring portion 723 is elastically deformed. For this reason, the elastic deformation requires a deformation amount enough to obtain a sufficient contact load for electrical connection. Therefore, it is conceivable to increase the spring constant of the leaf spring portion 723 so that a sufficiently high contact load can be obtained even with a small amount of deformation.

  FIG. 22 is a schematic graph showing the relationship between the amount of elastic deformation and the contact load in the leaf spring portion shown in FIGS. In the graph G1 of FIG. 22, the horizontal axis represents the amount of elastic deformation, and the vertical axis represents the contact load. The graph G1 shows two lines L1 and L2 indicating the relationship between the amount of elastic deformation and the contact load for two types of leaf spring portions 723 having different spring constants. A dotted line L1 indicates a relationship when the spring constant is relatively low, and a solid line L2 indicates a relationship when the spring constant is relatively high. Further, the graph G1 shows an appropriate load range WA necessary and sufficient for electrical connection between the terminal 700 and the mating male terminal with respect to the contact load.

  In the example of FIG. 22, the leaf spring portion 723 is a so-called linear spring, and the relationship between the deformation amount of the elastic deformation and the contact load is a linear relationship as shown by the two lines L1 and L2, and the deformation amount of the elastic deformation. The contact load increases in proportion to the increase. When the spring constant of the leaf spring portion 723 is increased, the inclination of the linear relationship increases, and the amount of increase in contact load with respect to the increase in the amount of elastic deformation increases.

  Here, the amount of elastic deformation in the leaf spring portion 723 is determined by the thickness of the male terminal inserted into the terminal body portion 720. At this time, although the thickness of the male terminal is within the range of manufacturing tolerance, there is some variation. As can be seen from the line L2 in the graph G1, in the leaf spring portion 723 having a high spring constant, when a male terminal having a thickness on the thinnest side of the tolerance range is inserted, the contact load is greater than the appropriate load range WA. If the male terminal having the thickness on the thickest side of the tolerance range is inserted, the contact load may be higher than the appropriate load range WA and excessively loaded. When the load is insufficient, the electrical connection may be insufficient, and when the load is excessive, the terminal 700 itself or the male terminal may be damaged.

  An object of the present invention is to obtain a contact load necessary and sufficient for electrical connection with a mating connector terminal while avoiding interference between the lance and the leaf spring portion when the mating connector terminal is inserted. And it is providing the connector provided with such a terminal.

In order to achieve the above object, the terminal of the present invention has a terminal main body portion that extends in a cylindrical shape and into which the mating connector terminal is inserted from the opening at the tip, and is accommodated in a terminal accommodating chamber provided in the connector housing. The terminal main body portion is formed with an entry hole for locking a lance that enters the terminal main body portion from the terminal accommodating chamber into the cylindrical side wall. And a leaf spring portion which is folded back from the edge portion of the edge of the opening located on the extension of the entry hole to the opening side to the entry hole side and contacts the inserted mating connector terminal. The leaf spring portion is formed on the second side wall portion facing the first side wall portion extending in the longitudinal direction of the terminal main body portion in the side wall, the region having the edge portion and the entry hole being formed. Extends in a convex shape facing toward the opponent at the top The mating connector terminal is pressed against the second side wall portion while being in contact with the connector terminal, and the end thereof is positioned on the opening side with respect to the entry hole, and the first side wall portion and the second side wall portion. A pair of arms that are branched toward a pair of third side wall portions that are connected to each other and that are narrower than before branching are formed at the end portions, and each of the pair of third side wall portions includes the counterpart When the side connector terminal is inserted and the leaf spring portion is pressed by the mating connector terminal from the second side wall portion side, a contact portion that becomes a fulcrum of the arm portion is formed, and the leaf spring portion Between the pair of arm portions at the end portion, a slit that extends from the edge of the end portion to the opening side of the terminal main body portion is provided .

  According to the terminal of the present invention, since the end of the leaf spring portion opposite to the opening side of the terminal main body portion is located on the opening side of the entrance hole of the lance, the elastic deformation of the leaf spring portion is prevented. Interference between the lance and the leaf spring is avoided regardless of the amount of deformation. Further, the leaf spring portion is supported by an edge portion as a starting point of folding and an end portion having a pair of arm portions, so as to contact a terminal of the mating connector at a convex top portion facing the second side wall portion. Is formed. For this reason, unlike the present invention, the leaf spring portion is compared with the case where the end portion that is folded and extended is free to be in contact with the terminal of the mating connector at the end portion, etc. A high contact load can be obtained. According to the terminal of the present invention, each of the pair of arm portions branched at the end portion of the leaf spring portion and narrower than that before the branch is supported by the contact portion when the leaf spring portion is elastically deformed. It is comprised so that. When the leaf spring portion is elastically deformed, each of the pair of arm portions supported by the contact portion is bent, so that the overall spring constant in the leaf spring portion is suppressed. According to the terminal of the present invention, it is possible to prevent the contact load from becoming excessively high by suppressing the spring constant as described above while obtaining a high contact load by supporting at the position sandwiching the top portion. The contact load that falls within the appropriate load range WA as shown in the graph G1 can be obtained. Thus, according to the terminal of the present invention, a contact load necessary and sufficient for electrical connection with the mating connector terminal can be obtained while avoiding interference between the lance and the leaf spring portion.

In addition, according to the terminal of the present invention, the portion divided by the slit is also easily bent when the leaf spring portion is elastically deformed, and the portion also suppresses the spring constant together with the pair of arm portions. Will contribute. At this time, the length of the pair of arm portions is determined to some extent by the distance between the leaf spring portion and the third side wall portion, but the depth of the slit can be freely set at the time of design compared to the length of the arm portion. Can be set. For this reason, according to this suitable terminal, the freedom degree about suppression of a spring constant has increased, and the freedom degree of the design in obtaining the contact load required and sufficient for electrical connection is raised.

  Further, in the terminal of the present invention, a through hole is provided at a position where the tip of each of the pair of arm portions faces in each of the pair of third side wall portions, and the abutting portion is, of the inner edge of the through hole, When the leaf spring portion is pushed by the mating connector terminal, the pair of arm portions are inner edge portions that come into contact with each other, and the inner edge portion is straight in a direction approaching the first side wall portion as the distance from the opening increases. It is also suitable that it is inclined in a shape.

  According to this preferable terminal, the inner edge part with which a pair of arm part contact | abuts is linearly inclined in the direction approaching a 1st side wall part. For this reason, when the above-mentioned top part in the leaf spring part is pushed by the mating connector terminal toward the first side wall part side and the leaf spring part is elastically deformed, each of the pair of arm parts is slid along the inner edge part. Thus, it is possible to escape toward the first side wall portion side, and for example, excessive stress concentration at the base of the arm portion or the like can be suppressed. Thereby, when the mating connector terminal is repeatedly inserted and removed, it is possible to suppress the occurrence of sag of the leaf spring portion such as plastic deformation of the arm portion, for example.

  Moreover, the terminal of this invention WHEREIN: It is also suitable that the said contact part is a shelf which protruded toward the inner side of the said terminal main-body part from each of a pair of said 3rd side wall part.

  According to this preferred terminal, when the leaf spring portion is elastically deformed, the shelf with which the pair of arm portions abuts also bends toward the first side wall portion. For this reason, when the leaf spring portion is elastically deformed, each of the pair of arm portions can be released to the first side wall portion side, and for example, excessive stress concentration at the base of the arm portion or the like can be suppressed. Thereby, when the mating connector terminal is repeatedly inserted and removed, it is possible to suppress the occurrence of sag of the leaf spring portion such as plastic deformation of the arm portion, for example.

  In the terminal of the present invention, it is also preferable that the leaf spring portion is formed so that the width at the top portion is wider than the width at the opening side portion than the top portion.

  According to this preferred terminal, the leaf spring portion is formed with a wide width at the top portion where stress that tends to open the above convex shape during elastic deformation is formed, and the strength against such opening. Has been increased. Thereby, when the mating connector terminal is repeatedly inserted and removed, it is possible to suppress the occurrence of sag of the leaf spring portion such that the convex shape opens due to plastic deformation.

  In the terminal of the present invention, it is also preferable that the leaf spring portion is provided with a portion having a constant width narrower than the width of the edge portion on the top side of the edge portion to the top portion. is there.

  According to this preferred terminal, when the leaf spring portion is elastically deformed, the constant width portion formed as described above is bent, so that the stress is concentrated on the pair of arm portions. Can be suppressed. Thereby, when the mating connector terminal is repeatedly inserted and removed, it is possible to suppress the occurrence of sag of the leaf spring portion such as plastic deformation of the arm portion, for example.

  In this preferable terminal, it is more preferable that the width gradually decreases from the edge portion to the constant width portion.

  According to this more preferable terminal, when the leaf spring portion is elastically deformed, the stress concentration can be suppressed from the edge portion to the portion having the constant width, and the occurrence of sag of the leaf spring portion is further reduced. Can be suppressed.

  In order to achieve the above object, the connector of the present invention has a housing provided with a terminal accommodating chamber and a terminal main body portion that extends in a cylindrical shape and into which the mating connector terminal is inserted from the opening at the tip. A connector including a metal terminal accommodated in the terminal accommodating chamber, wherein the terminal is the terminal of the present invention described above.

  According to the connector of the present invention, since the terminal is the terminal of the present invention described above, it is necessary and sufficient for electrical connection with the mating connector terminal while avoiding interference between the lance and the leaf spring portion. Contact load can be obtained.

  According to the terminal and connector of the present invention, a contact load necessary and sufficient for electrical connection with the mating connector terminal can be obtained while avoiding interference between the lance and the leaf spring portion.

It is a figure which shows the common schematic structure of the connector in the 1st-5th embodiment of this invention. It is an external appearance perspective view which shows the state before fixing to the electric wire of the terminal of 1st Embodiment. It is a figure which shows the V101 arrow in a figure of the terminal shown by FIG. It is a figure which shows the V102 arrow in a figure of the terminal shown by FIG. 2, and the V103-V103 cross section in a figure. FIG. 4 is a cross-sectional view illustrating a V104-V104 cross section of the terminal illustrated in FIG. 3. FIG. 6 is an enlarged view of a region A101 corresponding to the terminal main body in FIG. It is sectional drawing showing the V105-V105 cross section in a figure of the terminal main-body part in the terminal shown by FIG. It is the perspective view which showed the terminal main-body part so that an internal structure could be seen by removing a ceiling wall. It is a figure which shows the terminal main body part in the state by which the male terminal of the other party connector was inserted in opening about the expanded cross section similar to FIG. It is a figure which shows the terminal main-body part in the state by which the male terminal of the other party connector was inserted in opening about V102 arrow in FIG. 2 similarly to FIG. It is a figure which shows the metal plate cut out by the expansion | deployment shape of the terminal shown by FIGS. It is the perspective view which showed a mode that each of a pair of arm part of a leaf | plate spring part contact | abutted and bent to the inner edge part of a through-hole, in the state which removed the ceiling wall of the terminal main-body part similarly to FIG. The state where the mating male terminal is pressed against the top of the curved shape when the concave portions of the pair of wall portions are viewed from the inside of the terminal main body portion by the leaf spring portion is the same as in FIG. It is the figure shown by sectional drawing. It is an external view which shows the state before fixation to the electric wire of the terminal of 2nd Embodiment. It is a figure which shows the shape of the leaf | plate spring part in the terminal of 3rd Embodiment by sectional drawing similar to FIG. 7 of the terminal main-body part in the terminal of 3rd Embodiment. It is a figure which shows the part which the front-end | tip of a pair of arm part of the leaf | plate spring part in the terminal of 4th Embodiment contact | abuts with the cross-sectional view similar to FIG. 7 of the terminal main-body part in the terminal of 4th Embodiment. It is a figure which shows the part which the front-end | tip of a pair of arm part of the leaf | plate spring part in the terminal of 4th Embodiment contact | abuts with the perspective view similar to FIG. 12 of the terminal main-body part in the terminal of 4th Embodiment. It is a figure which shows the terminal of 5th Embodiment with the perspective view similar to FIG. It is a figure which shows an example of the conventional terminal with which a connector is equipped. FIG. 20 is an enlarged view of a region A701 in FIG. FIG. 20 is a cross-sectional view showing the V701-V701 cross section in FIG. 20 of the connector shown in FIG. It is a typical graph which shows the relationship between the deformation amount of the elastic deformation in the leaf | plate spring part shown by FIGS. 19-21, and a contact load.

  First, a common schematic configuration of connectors in the first to fifth embodiments of the present invention will be described with reference to FIG.

  FIG. 1 is a diagram showing a common schematic configuration of connectors in first to fifth embodiments of the present invention. FIG. 1 is a perspective view of the connector 1.

  A connector 1 shown in FIG. 1 includes a resin housing 11 and metal terminals 13. The housing 11 is provided with 12 terminal accommodating chambers 11a arranged in 2 × 6. The terminal 13 is fixed to the tip end of the electric wire 12 forming a wire harness (not shown) and is accommodated in the terminal accommodating chamber 11a. In each terminal accommodating chamber 11a, the side (front side) opposite to the side from which the electric wires 12 extend is opened to serve as a terminal insertion port into which a terminal of a mating connector (not shown) is inserted.

  The connector 1 shown in FIG. 1 is a female connector, and its terminal 13 is also a female terminal into which a pin-shaped male terminal is inserted as a mating connector terminal. In FIG. 1, only one electric wire with a terminal in which the terminal 13 is fixed to the tip of the electric wire 12 is representatively shown.

  Subsequently, each of the first to fifth embodiments of the present invention will be described. These embodiments are different from each other in the configuration of the terminals that are typically denoted by reference numeral “13” in FIG. In the following, each embodiment will be described focusing on the terminals.

  First, the terminal of 1st Embodiment is demonstrated with reference to FIGS.

  FIG. 2 is an external perspective view showing a state of the terminal according to the first embodiment before being fixed to the electric wire, and FIG. 3 is a view showing the terminal shown in FIG. It is. FIG. 4 is a view showing the terminal shown in FIG. 2 as viewed in the direction of arrow V102 in the drawing and a cross section taken along line V103-V103 in the drawing. 4A is a view showing the arrow V102, and FIG. 4B is a view showing a V103-V103 cross section.

  The terminal 100 is a female terminal into which a pin-shaped male terminal is inserted, and is electrically connected to the wire fixing portion 110 fixed to the tip of the electric wire 12 and the male terminal of the mating connector. The terminal body 120 is integrally formed.

  The wire fixing portion 110 includes a pair of conductor crimping pieces 111 and a pair of covering crimping pieces 112. The conductor crimping piece 111 is crimped and fixed to the exposed conductor after the insulation coating is removed at the tip of the electric wire 12. The coating crimping piece 112 is provided adjacent to the conductor crimping piece 111 and is fixed by crimping to the resin coating near the conductor.

  The terminal main body 120 is formed so as to extend in a cylindrical shape from the wire fixing portion 110 on the side opposite to the wire 12 side in the length direction D101 of the wire 12 to which the wire fixing portion 110 is fixed. The terminal main body 120 is electrically connected by inserting the male terminal of the mating connector from the opening 120a on the opposite side of the wire fixing portion 110. In the present embodiment, the terminal main body 120 connects the bottom wall 121 (first side wall portion), the ceiling wall 122 (second side wall portion) facing the bottom wall 121, and connects the bottom wall 121 and the ceiling wall 122 to each other. It is formed in the shape of a square cylinder having a pair of opposing lateral walls 123 (third side wall portions).

  Further, as shown in FIG. 4, the terminal main body 120 includes a metal plate having a pair of end edges 122 a extending in parallel with each other in the longitudinal direction D <b> 102 of the terminal main body 120. They are bent into a square tube shape so as to form a ceiling wall 122 close to each other. Each of the pair of wall portions 122b having the pair of end edges 122a forming the ceiling wall 122 is curved toward the inside of the terminal body 120 and extends in the longitudinal direction D102 of the terminal body 120. A recess 122c is provided.

  In the present embodiment, the recess 122c of each of the pair of wall portions 122b has a cross-sectional shape orthogonal to the longitudinal direction D102 of the terminal main body 120 as shown in FIG. It has a valley shape. That is, the cross-sectional shape of the recess 122c falls from the outer surface of each of the pair of wall portions 122b toward the inside of the terminal main body 120, reaches the bottom, and climbs to the same height as the outer surface of the wall portion 122b from the bottom. It has a valley shape that reaches each end edge 122a.

  Next, the terminal main body 120 will be described focusing on its internal structure.

  FIG. 5 is a cross-sectional view showing a V104-V104 cross section of the terminal shown in FIG. 3, and FIG. 6 is an enlarged view of a region A101 corresponding to the terminal main body in FIG. FIG. 7 is a cross-sectional view showing a V105-V105 cross section of the terminal main body portion of the terminal shown in FIG. FIG. 8 is a perspective view showing the terminal main body so that the internal structure can be seen by removing the ceiling wall.

  First, the terminal housing chamber 11a in the housing 11 of the connector 1 shown in FIG. 1 has a terminal main body portion of the terminal 100 from the terminal housing chamber 11a as shown by a one-dot chain line in FIGS. A lance 11b that enters and locks into the interior of 120 is provided. An entrance hole 121a for the lance 11b is provided in the bottom wall 121 of the terminal body 120. The lance 11b is formed to be elastically deformable. When the terminal 100 is inserted into the terminal accommodating chamber 11a of the housing 11, the terminal 100 is elastically deformed to pass through the terminal main body portion 120. Enter and lock. Due to the locking of the lance 11b, the terminal 100 is accommodated in the terminal accommodating chamber 11a in a state of being prevented from coming off.

  The terminal main body 120 is provided with the following plate spring portion 124 as a structure for electrical connection with the inserted male terminal. 6-8, the leaf | plate spring part 124 is the edge part 121b (namely, opening 120a of the bottom wall 121) located on the extension of the entrance hole 121a of the lance 11b among the edges of the opening 120a. It extends in a band from the edge of the side. And the leaf | plate spring part 124 is folded and formed in the inside of the terminal main-body part 120 by the edge part 121b at the entrance hole 121a side.

  Further, the leaf spring portion 124 extends into the terminal body portion 120 in a convex shape that is bent and bent in the middle toward the ceiling wall 122. A convex top portion of the leaf spring portion 124 further protrudes toward the ceiling wall 122 and bulges in a substantially circular shape when viewed from the ceiling wall 122 side, and is a male terminal of the mating connector at the opening 120a. A contact portion 124a is provided in contact with the male terminal when is inserted. In the present embodiment, the contact portion 124a corresponds to an example of a top portion according to the present invention.

  FIG. 9 is a view showing the terminal main body in a state where the male terminal of the mating connector is inserted into the opening, in an enlarged cross section similar to FIG. 6, and FIG. 10 shows the male terminal of the mating connector in the opening It is a figure which shows the terminal main-body part in the state by which was inserted about V102 arrow in FIG. 2 similarly to FIG.

  As shown in FIGS. 9 and 10, when the male terminal P is inserted into the opening 120a of the terminal main body 120, the contact portion 124a of the leaf spring portion 124 contacts the male terminal P, and the leaf spring. The part 124 presses the male terminal P against the ceiling wall 122 at the contact part 124a. The pressed male terminal P is pressed by the leaf spring portion 124 to the top of the curved shape when the concave portions 122c of the pair of wall portions 122b forming the ceiling wall 122 are viewed from the inside of the terminal main body portion 120.

  Here, the leaf spring portion 124 is formed so that the end portion 124b of the terminal main body portion 120 on the opposite side to the opening 120a side is located on the opening 120a side with respect to the entry hole 121a of the lance 11b. Further, the end portion 124b of the leaf spring portion 124 is branched so as to protrude toward the pair of lateral walls 123. The pair of arms is narrower than the width of the leaf spring portion 124 (the width before branching) in the contact portion 124a. The portion 124b-1 is formed in a substantially T-shape. A slit 124b-2 extending toward the opening 120a of the terminal main body 120 is provided between the pair of arms 124b-1 at the end 124b.

  In addition, a rectangular through hole 123a is formed at a position where each of the pair of arm portions 124b-1 faces in each of the pair of horizontal walls 123. As shown in FIG. 9, when the male terminal P is inserted into the opening 120a, the leaf spring portion 124 is elastic in the direction of the arrow D103 in FIG. Deform. And if the leaf | plate spring part 124 elastically deforms in this way, each front-end | tip 124b-1a of a pair of arm part 124b-1 will be the inner edge part 123a-1 by the side of the bottom wall 121 among the inner edges of said through-hole 123a. Abut. That is, the inner edge portion 123a-1 serves as a contact portion that serves as a fulcrum when the pair of arm portions 124b-1 contact each other when the leaf spring portion is elastically deformed. In the present embodiment, the inner edge portion 123 a-1 is linearly inclined in a direction approaching the bottom wall 121 as it is away from the opening 120 a of the terminal main body 120.

  Further, in the present embodiment, as shown in FIGS. 7 and 8, the leaf spring portion 124 is located on the contact portion 124a side (top side) of the edge portion 121b of the bottom wall 121 to the contact portion 124a. A portion 124c having a constant width W101 narrower than the width W102 of the edge portion 121b is provided. And from the edge part 121b to the part 124c of constant width W101, it forms in the shape where the width | variety reduced gradually.

  Furthermore, in this embodiment, a part of the bottom wall 121 is cut and raised toward the leaf spring portion 124, and a restriction portion 125 that restricts excessive displacement of the leaf spring portion 124 in the direction of arrow D103 is provided. The restricting portion 125 is cut and raised toward the surface on the bottom wall 121 side of the portion 124c having the constant width W101, and the leading edge thereof contacts the surface on the bottom wall 121 side of the portion 124c having the constant width W101. By contact, excessive displacement of the leaf spring portion 124 is regulated.

  The terminal 100 having the shape described above is formed by sheet metal processing for bending a metal plate cut out in the following developed shape.

  FIG. 11 is a view showing a metal plate cut out in a developed shape of the terminal shown in FIGS.

  The metal plate 150 shown in FIG. 11 has a shape in which a plurality of terminal-corresponding plates 100 ′ in a developed shape of the terminal 100 are arranged in the length direction of the base portion 151 on the belt-like base portion 151. Each terminal equivalent plate 100 ′ includes the above-described expanded shape of the wire fixing portion 110 ′ of the electric wire fixing portion 110 and the above-described expanded shape of the terminal body portion equivalent plate 120 ′ of the terminal main body portion 120. .

  The wire fixing portion equivalent plate 110 ′ has a shape in which each of the pair of conductor crimping pieces 111 and the pair of covering crimping pieces 112 is developed. The electric wire fixing portion 110 is formed by folding the pair of conductor crimping pieces 111 and the pair of covering crimping pieces 112, respectively.

  The terminal body portion equivalent plate 120 ′ includes a side wall equivalent plate 120 ″ and a leaf spring portion equivalent plate 124 ′. The side wall equivalent plate 120 ″ is a pair of wall portions that form the bottom wall 121 and the ceiling wall 122. 122b and the pair of horizontal walls 123 are rectangular portions developed. The leaf spring portion equivalent plate 124 ′ is a portion where the leaf spring portion 124 extending from the bottom wall 121 of the side wall equivalent plate 120 ″ is developed. The leaf spring portion equivalent plate 124 ′ is folded back and the side wall equivalent plate 120 ″. The terminal main body 120 is formed by bending a pair of end edges 122a extending in parallel with each other in the longitudinal direction D102 of the terminal main body 120 into a rectangular tube shape so as to form a ceiling wall 122. In addition, the recesses 122c in the pair of wall portions 122b are formed by pressing or the like prior to bending.

  According to the terminal 100 of the first embodiment described above, the leaf spring portion 124 has the end portion 124b opposite to the opening 120a side of the terminal main body portion 120 on the opening 120a side of the entrance hole 121a of the lance 11b. Is located. Thereby, interference with the lance 11b and the leaf | plate spring part 124 is avoided irrespective of the deformation amount of the elastic deformation of the leaf | plate spring part 124. FIG.

  Further, according to the terminal 100 of the present embodiment, the leaf spring portion 124 is formed so as to be positioned closer to the opening 120a side than the entry hole 121a of the lance 11b, so that the metal plate 150 shown in FIG. The plate spring portion equivalent plate 124 ′ in each terminal equivalent plate 100 ′ is also formed short. In the metal plate 150, the plate spring portion equivalent plate 124 ′ extends from the rectangular side wall equivalent plate 120 ″, and the plate spring portion equivalent plates 124 ′ of the plurality of terminal equivalent plates 100 ′ are cut out. At this time, according to the terminal 100 of this embodiment, the leaf spring portion equivalent plate 124 'is also formed short as described above, so that the yield of the portion discarded as described above is suppressed. Can be improved.

  In addition, according to the terminal 100 of the present embodiment, the leaf spring portion 124 is supported by the edge portion 121b as a folding start point and the end portion 124b having a pair of arm portions 124b-1. And it contacts the male terminal P of the mating connector at the contact portion 124a at the top of the convex shape that is bent in the middle toward the ceiling wall 122 in the middle between them. For this reason, unlike the case where the leaf spring portion 124 is formed such that the folded end is free and comes into contact with the male terminal at the end, a high contact load is obtained. be able to.

  And according to the terminal 100 of this embodiment, the edge part 124b of the leaf | plate spring part 124 has a pair of arm part 124b-1 narrower than the width W101 of the leaf | plate spring part 124 in the contact part 124a. Each of the pair of arm portions 124 b-1 is configured to abut against the inner edge portion 123 a-1 on the bottom wall 121 side in the through hole 123 a of the lateral wall 123 when the leaf spring portion 124 is elastically deformed. Yes.

  FIG. 12 is a perspective view showing a state in which each of the pair of arm portions of the leaf spring portion is in contact with the inner edge portion of the through hole and is bent in a state where the ceiling wall of the terminal main body portion is removed as in FIG. is there. FIG. 12A shows a perspective view of the terminal main body 120 from which the ceiling wall 122 is removed as viewed from the pair of arm portions 124b-1 side of the leaf spring portion 124. FIG. FIG. 12 shows an enlarged view of a region A102 in FIG.

  As shown in FIG. 12, when the leaf spring portion 124 is elastically deformed in the terminal main body 120, the pair of arms having a narrow width as described above are formed on the inner edge portion 123a-1 of the through hole 123a of the lateral wall 123. Each part 124b-1 contacts. Each of the pair of arm portions 124b-1 bends in the direction of the arrow D103, which is the same as the deformation direction of the elastic deformation of the leaf spring portion 124. Thereby, the whole spring constant in the leaf | plate spring part 124 will be suppressed. According to the terminal 100 of the present embodiment, first, a high contact load is obtained by support at a position sandwiching the contact portion 124a. On the other hand, the suppression of the spring constant as described above prevents such contact load from becoming excessively high. Thereby, it is possible to obtain a contact load that falls within the appropriate load range WA as shown in the graph G1 of FIG. As described above, according to the terminal 100 of the present embodiment, contact necessary and sufficient for electrical connection with the male terminal P of the mating connector while avoiding interference between the lance 11b and the leaf spring portion 124. A load can be obtained.

  Moreover, according to the terminal 100 of this embodiment, the space between the pair of arm portions 124b-1 at the end portion 124b of the leaf spring portion 124 is divided by the slit 124b-2. For this reason, it is easy to bend about the divided | segmented part in the case of the elastic deformation of the leaf | plate spring part 124, The part will also contribute to suppression of a spring constant with a pair of arm part 124b-1. At this time, the length of the pair of arm portions 124b-1 is determined to some extent by the distance between the leaf spring portion 124 and the lateral wall 123, but the depth of the slit 124b-2 is compared to the length of the arm portion 124b-1. It can be set freely during design. For this reason, according to the terminal 100 of this embodiment, the freedom degree about suppression of a spring constant is increasing, and the freedom degree of design in obtaining a contact load necessary and sufficient for electrical connection is raised.

  Further, according to the terminal 100 of the present embodiment, the inner edge portion 123a-1 with which the tips 124b-1a of the pair of arm portions 124b-1 come into contact is inclined linearly in a direction approaching the bottom wall 121. When the contact portion 124a of the leaf spring portion 124 is pushed toward the bottom wall 121 by the mating male terminal P and the leaf spring portion 124 is elastically deformed, the tips 124b-1a of the pair of arm portions 124b-1 are connected to the inner edge. It slides along the part 123a-1 and escapes to the bottom wall 121 side. As a result, for example, excessive stress concentration at the base of the arm portion 124b-1 is suppressed. Thereby, when the male terminal P is repeatedly inserted and removed, it is possible to suppress the occurrence of sag of the leaf spring portion 124 such as plastic deformation of the arm portion 124b-1.

  Further, according to the terminal 100 of the present embodiment, the leaf spring portion 124 has an edge on the contact portion 124a side from the edge portion 121b to the contact portion 124a as described with reference to FIGS. A portion 124c having a constant width W101 narrower than the width W102 of the portion 121b is provided. As a result, when the leaf spring portion 124 is elastically deformed, the portion of the constant width W102 formed to be narrow as described above bends, thereby concentrating stress on the pair of arm portions 124b-1. Can be suppressed. Thereby, when the male terminal P is repeatedly inserted and removed, it is possible to suppress the occurrence of sag of the leaf spring portion 124 such as plastic deformation of the arm portion 124b-1.

  Further, according to the terminal 100 of the present embodiment, the width gradually decreases from the edge portion 121b to the portion 124c having the constant width W101. Thereby, when the leaf spring portion 124 is elastically deformed, the concentration of stress can be suppressed from the edge portion 121b to the portion 124c having the constant width W101, and the occurrence of sag of the leaf spring portion 124 is further suppressed. be able to.

  Further, according to the terminal 100 of the present embodiment, the inserted male terminal P on the mating side is when the concave portions 122c of the pair of wall portions 122b forming the ceiling wall 122 are viewed from the inside of the terminal main body portion 120. It is pressed against the top of the curved shape by the leaf spring portion 124.

  Here, the shape of the mating male terminal P may be slightly distorted although it is within the range of manufacturing tolerances. In addition, the shape of the rectangular tubular terminal body 120 may be slightly distorted within the range of manufacturing tolerances. At this time, according to the terminal 100 of the present embodiment, when the mating male terminal P is inserted into the terminal body 120, the above distortion is absorbed as follows. The posture of the male terminal P can be stabilized.

  FIG. 13 shows how the mating male terminal is pressed by the leaf spring portion against the top of the curved shape when the concave portions of the pair of wall portions are viewed from the inside of the terminal body portion. It is the figure shown with sectional drawing similar to B).

  According to the terminal 100 of the present embodiment, when the mating male terminal P is inserted into the terminal body 120, the pair of wall portions 122b forming the ceiling wall 122 can move as follows. It is configured. That is, each of the pair of wall portions 122b can move in the direction of arrow D104 in FIG. 13 so that the rectangular cylindrical terminal body 120 is opened by the elasticity of the metal plate. Even if the shape of the mating male terminal P or the cylindrical terminal body 120 is distorted, according to the terminal 100 of this embodiment, the pair of wall portions 122b move in this way. The above distortion can be absorbed.

  Further, according to the terminal 100 of the present embodiment, the male terminal P is pressed against the top of the curved shape when the recess 122c of each of the pair of wall portions 122b is viewed from the inside of the terminal main body 120. For this reason, compared with the case where the said recessed part is not provided in each of a pair of wall part, the male terminal P of the other party is easy to contact each of a pair of wall part 122b. Thereby, each of a pair of wall part 122b can be smoothly moved according to distortion of male type terminal P, and distortion can be absorbed. By absorbing this strain, the posture of the male terminal P can be stabilized inside the terminal main body 120, and as a result, sufficient electrical connection can be obtained between the male terminal P and the male terminal P.

  Since the movement of each of the pair of wall portions 122b absorbs the distortion of the shape of the male terminal P and the cylindrical terminal main body 120, the male terminal P and the terminal main body 120 are manufactured so strictly. There is no need, and the manufacturing cost can be reduced. Thus, according to the terminal 100 of the present embodiment, it is possible to obtain a sufficient electrical connection with the mating male terminal P while suppressing the manufacturing cost.

  Further, in the terminal 100 of the present embodiment, as described above, the recess 122c has a cross-sectional shape that descends from the outer surface of each of the pair of wall portions 122b toward the inside of the terminal main body 120 and reaches the bottom. Furthermore, it has a valley shape that reaches each of the pair of end edges 122a on the way from the bottom to the same height as the outer surface. That is, as shown in FIG. 13, at least part of the edge portions 122a-1 of the pair of end edges 122a forms part of the recess 122c. And the edge part 122a-1 is located in the inner side of the terminal main-body part 120 rather than the edge 122c-1 on the opposite side to the edge part 122a-1 in the recessed part 122c.

  In the terminal 100 of this embodiment, when each of the pair of wall portions 122b moves in the direction of the arrow D104 in order to absorb the above-described distortion, the edge portion 122a-1 that forms part of the recess 122c among the pair of edge 122a. The amount of movement becomes the largest. And this edge part 122a-1 is located in the inner side of the terminal main-body part 120 rather than said edge 122c-1 of said other side in the recessed part 122c. For this reason, even if each of the pair of wall portions 122b moves, the end portion 122a-1 of each of the pair of end portions 122a does not move beyond the opposite edge 122c-1 of the recess 122c. Some margin d101 exists. As a result, even if each of the pair of wall portions 122b moves and the terminal body 120 is slightly deformed, a change in the envelope shape of the terminal body 120 due to the deformation can be suppressed.

  And according to the connector 1 (FIG. 1) provided with the terminal 100 of this embodiment mentioned above, while avoiding interference with the lance 11b and the leaf | plate spring part 124, it is with the male terminal P of the other party connector. A contact load necessary and sufficient for electrical connection can be obtained. Moreover, according to this connector 1, sufficient electrical connection can be obtained between the male terminals P of the mating connector while suppressing the manufacturing cost.

  Next, the terminal of 2nd Embodiment is demonstrated with reference to FIG. The terminal of 2nd Embodiment differs from the terminal 100 of 1st Embodiment in the shape of the recessed part provided in each of a pair of wall part which makes a ceiling wall. Hereinafter, the terminal of the second embodiment will be described focusing on the differences from the terminal 100 of the first embodiment.

  FIG. 14 is an external view showing a state of the terminal according to the second embodiment before being fixed to the electric wire. FIG. 14A shows a perspective view of the terminal 200 of the second embodiment, and FIG. 14B shows V201 of the terminal 200 shown in FIG. Arrow view is shown. In FIG. 14, the same reference numerals as those in FIG. 1 and FIG. 4 are given to the same components as those of the terminal 100 of the first embodiment shown in FIG. 1 and FIG. The redundant explanation of these equivalent components will be omitted.

  In the terminal 200 shown in FIG. 14, the recesses 211 c provided in the pair of wall portions 211 b forming the ceiling wall 211 of the terminal main body 210 have the following shapes. The concave portion 211c descends from the outer surface of each of the pair of wall portions 211b toward the inside of the terminal main body 210 and reaches the bottom, and climbs from the bottom to the same height as the outer surface to reach the rear pair of edges 211a. It has a valley shape. That is, in this embodiment, the pair of end edges 211a does not form a part of the recess 211c, and the recess 211c is provided at a position away from the pair of end edges 211a. For this reason, in this embodiment, the pair of end edges 211a having the largest movement amount are close to each other at the same position as the outer surface of each of the pair of wall portions 211b.

  Needless to say, the terminal 200 of the second embodiment and the connector 1 (FIG. 1) including the terminal 200 can obtain the same effects as those of the terminal 100 of the first embodiment and the connector 1 including the terminal 100. Yes. That is, according to the second embodiment, it is possible to obtain a contact load necessary and sufficient for electrical connection with the male terminal P of the mating connector while avoiding interference between the lance 11b and the leaf spring portion 124. it can. In addition, it is possible to obtain a sufficient electrical connection with the male terminal P of the mating connector while suppressing the manufacturing cost.

  However, in the terminal 100 of 1st Embodiment mentioned above and the connector 1 provided with this terminal 100, the edge part 122a-1 in a pair of edge 122a has comprised a part of recessed part 122c. And the edge part 122a-1 is located in the inner side of the terminal main-body part 120 rather than edge 122c-1 of said other side in the recessed part 122c. Thereby, in 1st Embodiment, compared with 2nd Embodiment, it is advantageous at the point which can suppress the change of the envelope shape of the terminal main-body part 120 at the time of insertion of the other party's male terminal P. As described above.

  Next, the terminal of 3rd Embodiment is demonstrated with reference to FIG. The terminal of the third embodiment is different from the terminal 100 of the first embodiment in the shape of the leaf spring portion. Hereinafter, the terminal of the third embodiment will be described focusing on the differences from the terminal 100 of the first embodiment.

  FIG. 15 is a view showing the shape of the leaf spring part in the terminal of the third embodiment in the same sectional view as FIG. 7 of the terminal main body part in the terminal of the third embodiment. In FIG. 15, components equivalent to those of the terminal 100 of the first embodiment shown in FIG. 7 are denoted by the same reference numerals as those in FIG. 7. I will omit the duplicate explanation.

  The leaf spring portion 311 included in the terminal main body portion 310 of the terminal 300 of the third embodiment extends from the edge portion 121b of the bottom wall 121 in a strip shape, similarly to the leaf spring portion 124 of the first embodiment. The leaf spring portion 311 is folded back into the terminal main body portion 310 at the edge portion 121b, and extends into the terminal main body portion 310 in a convex shape that is bent in the middle toward the ceiling wall 122. . In the leaf spring portion 311 of the present embodiment, a circular contact portion 311a is provided on the convex top portion in a plan view, and an outer peripheral portion 311b surrounding the contact portion 311a with a constant width is provided on the top portion. Is provided. For this reason, in the present embodiment, the width W301 of the top portion composed of the contact portion 311a and the outer peripheral portion 311b is equal to that in the portion 311c of the constant width W302 located on the opening 120a side with respect to the length direction of the leaf spring portion 311. It is formed wider than the constant width W302. In this embodiment, the top part which consists of the contact part 311a and the outer peripheral part 311b is equivalent to an example of the top part said to this invention.

  Moreover, in the leaf | plate spring part 311 of this embodiment, the other part has the following shape in response to having formed the top part so wide. First, the portion 311c having the constant width W302 is formed wider than the portion 124c having the constant width W101 in the leaf spring portion 124 of the first embodiment shown in FIG. 7, and the length thereof is longer. ing. Thus, in the present embodiment, the length of the portion 311c having the constant width W302 is increased by the width. As a result, similarly to the leaf spring 124 of the first embodiment, when the leaf spring portion 311 is elastically deformed, the portion 311c of the constant width W302 is sufficiently bent to concentrate stress on the pair of arm portions 124b-1. It is comprised so that it can suppress.

  Further, in the leaf spring portion 311 of this embodiment, the width of the slit 311d-1 provided in the end portion 311d having the pair of arm portions 124b-1 is also the leaf spring of the first embodiment shown in FIG. It is wider than the width of the slit 124b-2 in the portion 124. Thereby, the part divided | segmented by slit 311d-1 until it reaches a pair of arm part 124b-1 is formed in the narrowness similar to a pair of arm part 124b-1, and can contribute to suppression of a spring constant. It is configured as follows.

  The terminal 300 of the third embodiment described above and the connector 1 (FIG. 1) including the terminal 300 can obtain the same effects as those of the terminal 100 of the first embodiment and the connector 1 including the terminal 100. Needless to say, you can. That is, according to the third embodiment, it is possible to obtain a contact load necessary and sufficient for electrical connection with the male terminal P of the mating connector while avoiding interference between the balance 11b and the leaf spring portion 311. . In addition, it is possible to obtain a sufficient electrical connection with the male terminal P of the mating connector while suppressing the manufacturing cost.

  Moreover, according to the terminal 300 of 3rd Embodiment and the connector 1 provided with this terminal 300, in the leaf | plate spring part 310, in the case of elastic deformation, the stress which tends to concentrate stress which opens said convex shape is concentrated. The width W301 in FIG. As a result, the strength against the opening of the leaf spring portion 310 is increased, and when the mating male terminal P is repeatedly inserted and removed, the leaf spring portion 311 is prevented from being sagted such that the convex shape opens due to plastic deformation. Can be suppressed.

  Next, the terminal of 4th Embodiment is demonstrated with reference to FIG.16 and FIG.17. The terminal of the fourth embodiment is different from the terminal 100 of the first embodiment in the portion where the pair of arm portions of the leaf spring portion abuts. Hereinafter, the terminal of the fourth embodiment will be described focusing on the differences from the terminal 100 of the first embodiment.

  FIG. 16 is a cross-sectional view similar to FIG. 7 of the terminal main body portion of the terminal of the fourth embodiment, where the pair of arm portions of the leaf spring portion of the terminal of the fourth embodiment abut. FIG. 17 is a perspective view similar to FIG. 12 of the terminal main body portion of the terminal of the fourth embodiment, where the pair of arm portions of the leaf spring portion of the terminal of the fourth embodiment abut. is there. FIG. 17A is a perspective view showing the internal structure of the terminal body 410 in the terminal 400 of the fourth embodiment, and FIG. 17B shows a region A401 in FIG. 17A. An enlarged view of is shown. In FIGS. 16 and 17, the same reference numerals as those in FIGS. 7 and 12 are given to the same components as those of the terminal 100 of the first embodiment shown in FIGS. In the following, redundant description of these equivalent components is omitted.

  In the terminal body 410 of the terminal 400 according to the fourth embodiment, the shelf is cut and raised from the inner edge portion on the bottom wall 121 side in the through hole 411a provided in each of the pair of lateral walls 411 toward the inside of the terminal body 410. 411a-1 protrudes. The tip ends 412a-1a of the pair of arm portions 412a-1 provided at the end portions 412a of the leaf spring portion 412 are in contact with the pair of shelves 411a-1 protruding from the pair of horizontal walls 411, respectively. Further, each of the pair of shelves 411 a-1 is inclined linearly toward the bottom wall 121. In addition, the pair of arm portions 412 a-1 has a pair of arm portions 124 b-1 in the first embodiment such that the tips 412 a-1 a come into contact with the pair of shelves 411 a-1 protruding inward of the terminal main body portion 410. Is shorter.

  The terminal 400 of the fourth embodiment described above and the connector 1 (FIG. 1) including the terminal 400 can obtain the same effects as those of the terminal 100 of the first embodiment and the connector 1 including the terminal 100. Needless to say, you can. That is, according to the fourth embodiment, it is possible to obtain a contact load necessary and sufficient for electrical connection with the male terminal P of the mating connector while avoiding interference between the lance 11b and the leaf spring portion 412. . In addition, it is possible to obtain a sufficient electrical connection with the male terminal P of the mating connector while suppressing the manufacturing cost.

  Moreover, according to the terminal 400 of 4th Embodiment and the connector 1 provided with this terminal 400, in the case of the elastic deformation of the leaf | plate spring part 412, a pair of shelf 411a-1 which a pair of arm part 412a-1 contact | abuts. Will bend toward the bottom wall 121. Therefore, when the leaf spring portion 412 is elastically deformed, the distal ends 412a-1a of the pair of arm portions 412a-1 are released to the bottom wall 121 side, for example, excessive stress at the root of the arm portion 412a-1, for example. Can be reduced. Thereby, when the mating male terminal P is repeatedly inserted and removed, it is possible to suppress the occurrence of sag of the leaf spring portion 412 such as plastic deformation of the arm portion 412a-1.

  Next, the terminal of 5th Embodiment is demonstrated with reference to FIG. The terminal of the fifth embodiment is different from the terminal 100 of the first embodiment in the shape of the terminal body. Hereinafter, the terminal of the fifth embodiment will be described focusing on the differences from the terminal 100 of the first embodiment.

  FIG. 18 is a view showing the terminal of the fifth embodiment in a perspective view similar to FIG. In FIG. 18, components equivalent to those of the terminal 100 of the first embodiment shown in FIG. 2 are denoted by the same reference numerals as those in FIG. 2. I will omit the duplicate explanation.

  In the terminal main body 510 of the terminal 500 according to the fifth embodiment, the boundary between each of the pair of horizontal walls 123 connecting the bottom wall 121 and the ceiling wall 122 and each of the pair of wall portions 122b forming the ceiling wall 122 is chamfered. A pair of corner portions 510a is formed. And each of a pair of corner | angular part 510a is provided with the hollow 511 extended in the direction which cross | intersects the corner | angular part 510a. In the present embodiment, the recess 511 is provided on the opening 120a side and the wire fixing portion 110 side in each of the pair of corner portions 510a.

  The terminal 500 of the fifth embodiment described above and the connector 1 (FIG. 1) including the terminal 500 can obtain the same effects as those of the terminal 100 of the first embodiment and the connector 1 including the terminal 100. Needless to say, you can. That is, according to the fifth embodiment, a contact load necessary and sufficient for electrical connection with the male terminal P of the mating connector can be obtained while avoiding interference between the lance 11b and the leaf spring portion 124. . In addition, it is possible to obtain a sufficient electrical connection with the male terminal P of the mating connector while suppressing the manufacturing cost.

  Moreover, according to the terminal 500 of 5th Embodiment and the connector 1 provided with this terminal 500, when each of a pair of wall part 122b which makes the ceiling wall 122 moves with the hollow 511 provided in said corner | angular part 510a, Excessive movement can be suppressed. As a result, the deformation of the terminal body 510 can be minimized.

  The first to fifth embodiments described above are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

  For example, in the embodiment described above, the housing 11 provided with twelve terminal accommodating chambers 11a is illustrated as an example of the housing according to the present invention. However, the housing referred to in the present invention is not limited to this, and the specific number of terminal accommodating chambers is not limited as long as the housing is provided with a terminal accommodating chamber.

  In the above-described embodiment, the rectangular cylindrical terminal body 120, 210, 310, 410, 510 is illustrated as an example of the terminal body according to the present invention. However, the terminal body portion referred to in the present invention is not limited to this, and may be a cylindrical shape or an elliptical cylindrical shape as long as it is formed in a cylindrical shape. is not.

  Moreover, in this embodiment, as an example of the terminal referred to in the present invention, the terminals 13, 100, 200 in which one end side is a cylindrical terminal main body portion 120, 210, 310, 410, 510 and the other end side is a wire fixing portion 110. , 300, 400, 500 are illustrated. However, the terminal referred to in the present invention is not limited to this. The terminal referred to in the present invention may be, for example, one having a cylindrical terminal body portion on one end side and a pin-like portion like a male terminal on the other end side. The terminal in this case is connected to the electric wire via a relay terminal in which one end side is a cylindrical portion into which the pin-like portion is inserted and the other end side is an electric wire fixing portion. In addition, the terminal referred to in the present invention may be, for example, one having both ends formed in a cylindrical shape and accommodated in a terminal accommodating chamber of a connector housing. The terminal in this case functions as a relay terminal, and relays the connection between a pair of male terminals.

DESCRIPTION OF SYMBOLS 1 Connector 11 Housing 11a Terminal accommodation chamber 11b Lance 12 Electric wire 13,100,200,300,400,500 Terminal 110 Electric wire fixing part 120,210,310,410,510 Terminal main-body part 120a Opening 121 Bottom wall (1st side wall part) Example)
121a entrance hole 121b edge portion 122, 211 ceiling wall (an example of the second side wall portion)
122a, 211a A pair of end edges 122a-1 End edge portions 122b, 211b A pair of wall portions 122c, 211c Recesses 122c-1 Opposite edges 123, 411 Side walls (an example of a third side wall portion)
123a, 411a Through-hole 123a-1 Inner edge part (an example of a contact part)
124, 311, 412 Leaf spring part 124a, 311a, contact part 124b, 311d, 412a end part 124b-1, 412a-1 pair of arm parts 124b-1a, 412a-1a tip 124b-2, 311d-1 slit 124c, 311c portion 150 metal plate 311b outer peripheral portion 411a-1 shelf 510a corner portion 511 depression D101 length direction of electric wire D102 longitudinal direction of terminal main body portion P male terminal (mating side connector terminal)
W101, W302 constant width W102, W301 width

Claims (7)

It has a terminal body portion that extends in a cylindrical shape and into which the mating connector terminal is inserted from the opening at the tip, and is a metal terminal that is accommodated in a terminal accommodating chamber provided in the housing of the connector,
The terminal main body is formed with an entrance hole for locking a lance that enters the terminal main body from the terminal accommodating chamber into the cylindrical side wall, and the entrance of the edge of the opening A leaf spring portion that is folded back from the edge portion located on the extension to the opening side of the hole to the entry hole side and contacts the inserted mating connector terminal is formed,
The leaf spring portion is a convex toward the second side wall portion facing the first side wall portion extending in the longitudinal direction of the terminal main body portion in the side wall, the region having the edge portion and having the entry hole formed therein. The mating connector terminal is pressed against the second side wall portion while extending in shape and in contact with the mating connector terminal at the top, and an end portion thereof is positioned on the opening side with respect to the entry hole, and the first A pair of arms that are branched toward a pair of third side walls connecting the first side wall and the second side wall are narrower than before branching, and are formed at the end.
When the mating connector terminal is inserted into each of the pair of third side wall portions and the leaf spring portion is pressed by the mating connector terminal from the second side wall portion side, A contact portion is formed ,
Between the pair of arm portions at the end portion of the leaf spring portion, a slit extending from the edge of the end portion to the opening side of the terminal main body portion is provided. Terminal. In each of the pair of third side wall portions, a through hole is provided at a position where the tip of each of the pair of arm portions faces,
The abutting portion is an inner edge portion with which the pair of arm portions abut when the leaf spring portion is pushed by the mating connector terminal among the inner edges of the through hole,
The terminal according to claim 1, wherein the inner edge portion is linearly inclined in a direction approaching the first side wall portion as the distance from the opening increases. The contact portion, the terminal according to claim 1 or 2, characterized in that from each of the pair of third sidewall portion is a shelf which projects towards the inside of the terminal body portion. The plate spring portion has a width in the apex than said top according to any one of claims 1-3, characterized in that it is wider than the width in the portion of the opening side Terminal. The said leaf | plate spring part is provided with the part of the fixed width | variety narrower than the width | variety of the said edge part in the top part side from the said edge part to the said top part among Claims 1-4 . The terminal as described in any one. The terminal according to claim 5 , wherein the width gradually decreases from the edge portion to the constant width portion. A housing provided with a terminal accommodating chamber;
It has a terminal body portion that extends in a cylindrical shape and into which the mating connector terminal is inserted from the opening at the tip, and is made of a metal terminal that is accommodated in the terminal accommodating chamber,
A connector with
The said terminal is a terminal as described in any one of Claims 1-6 , The connector characterized by the above-mentioned.

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