JP2018113268A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance reliability by reliably keep first terminals of a first connector and second terminals of a second connector engaged, reliably maintaining an electrical connection between the first terminals and the second terminals, and reliably keeping the first connector and the second connector mated.SOLUTION: Each first terminal includes a first contact portion and a second contact portion facing each other. The first contact portion overlaps a corresponding second terminal. The amount of overlap of the first contact portion is greater than the amount of clearance in the width direction of a first connector main body. Each second terminal is inserted between the first contact portion and the second contact portion of the corresponding first terminal to contact the first terminal when the first connector main body is mated with a second connector main body.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a connector.

  Conventionally, a connector such as a board-to-board connector has been used to electrically connect a pair of parallel circuit boards. Such a connector is attached to each of mutually facing surfaces of a pair of circuit boards, and is adapted to be fitted (contained) with each other to be conducted. In addition, a technique has been proposed in which reinforcing metal fittings attached to both ends are made to function as a lock member to maintain a fitting state with a counterpart connector (see, for example, Patent Document 1).

  FIG. 8 is a perspective view showing a reinforcing metal fitting of a conventional connector. In addition, in the figure, (a) is a figure which shows a 2nd reinforcement metal fitting, (b) is a figure which shows a 1st reinforcement metal fitting.

  In FIG. 8B, reference numeral 851 denotes first reinforcing metal fittings attached to both ends in the longitudinal direction of the housing of the first connector mounted on the first circuit board (not shown). In FIG. It is the 2nd reinforcement metal fitting attached to the both ends of the longitudinal direction in the housing of the 2nd connector mounted in the 2nd circuit board which is not carried out.

  The first reinforcing metal fitting 851 is a member integrally formed by punching or bending a metal plate, and a plate-like main body portion 852 extending in the width direction of the first connector, the main body portion. A fixed board connection portion 856 that extends in the longitudinal direction of the first connector from both ends of 852 and is soldered to the first circuit board, and a side engagement piece that extends upward from the end of each board connection portion 856 858, a side engagement recess 858a formed on the surface of the side engagement piece 858, a curved center engagement piece 854 connected to the center of the main body 852, and a tip of the center engagement piece 854 A central engagement edge 854a is provided as an edge.

  The second reinforcing metal fitting 951 is a member integrally formed by punching and bending a metal plate, and a plate-like main body portion 952 extending in the width direction of the second connector, Extending in the width direction of the second connector from the lower edges of both ends of the main body portion 952, the board connection portion 956 for fixing that is soldered to the second circuit board, and the side engagement formed on the shoulders on both sides of the main body portion 952 A piece 958, a side engagement convex portion 958a formed on a side edge of the side engagement piece 958, a curved center engagement piece 954 connected to the center of the main body portion 952, and the center engagement piece A center engagement convex portion 954a formed on the surface of 954 is provided.

  When the first connector and the second connector are fitted, the side engaging piece 858 and the center engaging piece 854 of the first reinforcing bracket 851 and the side engaging piece 958 and the center engaging portion of the second reinforcing bracket 951 are fitted. The pieces 954 engage with each other. Specifically, the side engaging concave portion 858a and the central engaging edge portion 854a of the first reinforcing metal fitting 851 and the side engaging convex portion 958a and the central engaging convex portion 954a of the second reinforcing metal fitting 951 are engaged with each other. To do. Thereby, the 1st connector and the 2nd connector are locked, and the fitting state is held. At the time of fitting, either the first reinforcing metal fitting 851 or the second reinforcing metal fitting 951 is upside down with respect to the posture shown in the drawing and engages with the other reinforcing metal fitting.

  Further, since the first reinforcing metal fitting 851 and the second reinforcing metal fitting 951 are brought into contact with each other and conducted, the board connecting portion 856 of the first reinforcing metal fitting 851 is connected to the power line of the first circuit board, and the second reinforcing metal fitting 951 is connected. By connecting the board connecting portion 956 of the first circuit board to the power line of the second circuit board, the power line of the first circuit board and the power line of the second circuit board are connected to the first reinforcing metal fitting 851 and the second reinforcing metal fitting 951. It is electrically connected via.

JP 2010-198996 A

  However, in the conventional connector, the first reinforcing bracket 851 and the second reinforcing bracket 951 need rigidity for reinforcement, and the side engaging piece 858, the central engaging piece 854, the side engaging piece 958, and the like. The central engagement piece 954 does not have sufficient flexibility compared to the terminal. For this reason, when vibrations or impacts generated when the electronic device or the like on which the first circuit board and the second circuit board are mounted are dropped or subjected to external force are transmitted, the respective engagement pieces are flexibly elastic. It cannot be deformed and all the contacts between the first reinforcing metal fitting 851 and the second reinforcing metal fitting 951 cannot be maintained, and it is conceivable that sufficient conduction as a power supply line cannot be ensured.

  In addition, the contact area between the side engaging concave portion 858a and the central engaging edge portion 854a of the first reinforcing metal fitting 851 and the side engaging convex portion 958a and the central engaging convex portion 954a of the second reinforcing metal fitting 951 is extremely narrow. The contact resistance between the first reinforcing bracket 851 and the second reinforcing bracket 951 is increased. For this reason, there is a possibility that the amount of current flowing between the power supply line of the first circuit board and the power supply line of the second circuit board may be limited.

  The present invention solves the problems of the conventional connector, can reliably maintain the engagement state between the first terminal of the first connector and the second terminal of the second connector, It is an object of the present invention to provide a highly reliable connector that can reliably maintain a conductive state with the second terminal and that reliably holds the fitting between the first connector and the second connector.

  Therefore, in the connector of the present invention, the first connector main body and a plurality of first terminals loaded (tenned) on both sides in the width direction of the first connector main body are arranged in the longitudinal direction of the first connector main body. A first connector provided; a second connector body that fits into the first connector body; and a plurality of second terminals that are loaded on both sides in the width direction of the second connector body along the longitudinal direction of the second connector body. Each of the first terminals includes a first contact portion and a second contact portion facing each other, and the first contact portion is connected to a corresponding second terminal. The overlap amount, which is the amount of displacement in the width direction of the first contact portion, is larger than the clearance amount in the width direction of the first connector body, and each of the second terminals is connected to the first connector. Main body and second connector When the main body is fitted, it is inserted between the first contact portion and second contact portion of the corresponding first terminal in contact with the first terminal.

  In another connector of the present invention, among the plurality of first terminals, the first terminals located on both ends in the longitudinal direction of the first connector body are wider than the other first terminals, Of the second terminals, the second terminals located on both ends in the longitudinal direction of the second connector body are wider than the other second terminals.

  In still another connector of the present invention, all of the plurality of first terminals have the same vertical cross-sectional shape, and all of the plurality of second terminals have the same vertical cross-sectional shape.

  In still another connector according to the present invention, each of the first terminals further includes a held portion held by the first connector body, the first contact portion, and a second contact portion. An elastically deformable contact arm having one end connected to the holding portion, and the second contact portion is located closer to the held portion than the first contact portion.

  In still another connector according to the present invention, each of the first terminals further includes a tail portion having one end connected to the held portion and electrically connected to a connection pad on a substrate, The portion is located on the outer side in the width direction of the first connector body than the contact arm portion.

  According to the present invention, the engagement state between the first terminal of the first connector and the second terminal of the second connector can be reliably maintained, and the conduction state between the first terminal and the second terminal can be reliably ensured. Thus, the fitting between the first connector and the second connector can be reliably maintained, and the reliability can be improved.

It is the perspective view of the 1st connector in embodiment of this invention, Comprising: (a) is the figure seen from diagonally upward, (b) is the figure seen from diagonally below. It is the exploded view seen from diagonally above of the 1st connector in an embodiment of the invention. It is the exploded view seen from the slanting bottom of the 1st connector in an embodiment of the invention. It is the perspective view of the 2nd connector in embodiment of this invention, Comprising: (a) is the figure seen from diagonally upward, (b) is the figure seen from diagonally below. It is the exploded view seen from the diagonally upper side of the 2nd connector in an embodiment of the invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a three-plane figure which shows the state which the 1st connector and 2nd connector in embodiment of this invention mutually fitted, Comprising: (a) is the perspective view seen from diagonally upward, (b) was seen from diagonally downward A perspective view and (c) are side views. It is a figure explaining the relationship between the overlap of the 1st terminal and 2nd terminal in embodiment of this invention, and the clearance of a 1st housing and a 2nd housing, Comprising: (a) And (b) is FIG.6 (c). It is AA and BB arrow sectional drawing in). It is a perspective view which shows the reinforcement metal fitting of the conventional connector, (a) is a figure which shows a 2nd reinforcement metal fitting, (b) is a figure which shows a 1st reinforcement metal fitting.

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

  FIG. 1 is a perspective view of a first connector according to an embodiment of the present invention, FIG. 2 is an exploded view of the first connector according to the embodiment of the present invention as viewed obliquely, and FIG. 3 is a first view according to the embodiment of the present invention. It is the exploded view seen from diagonally lower of 1 connector. In FIG. 1, (a) is a diagram viewed from diagonally above, and (b) is a diagram viewed from diagonally below.

  In the figure, reference numeral 1 denotes a first connector as one of a pair of board-to-board connectors that are connectors in the present embodiment. The first connector 1 is a surface mount type connector that is mounted on the surface of a first substrate that is a substrate (not shown) as a mounting member, and is fitted to a second connector 101 that is a counterpart connector described later. The The second connector 101 is the other of the pair of board-to-board connectors, and is a surface-mounting connector that is mounted on the surface of a second board that is a board (not shown) as a mounting member.

  The first connector 1 and the second connector 101 in the present embodiment are preferably used for electrically connecting the first substrate and the second substrate as substrates, but other members. Can also be used for electrical connection. The first substrate and the second substrate are, for example, a printed circuit board, a flexible flat cable (FFC), a flexible printed circuit (FPC), and the like used for electronic devices. It may be a type of substrate.

  Further, in the present embodiment, expressions indicating directions such as upper, lower, left, right, front, rear, etc. used for explaining the configuration and operation of each part of the first connector 1 and the second connector 101 are as follows: It is not absolute but relative, and is appropriate when each part of the first connector 1 and the second connector 101 has the posture shown in the figure. It should be interpreted according to changes.

  And the said 1st connector 1 has the 1st housing 11 which is a housing as a 1st connector main body integrally formed with insulating materials, such as a synthetic resin. As shown in the figure, the first housing 11 has a substantially rectangular thick plate shape that is a substantially rectangular parallelepiped, and is the side where the second connector 101 is inserted, that is, the fitting surface 11a side (in FIG. 2). On the upper side, a substantially rectangular recess 12 is formed with a surrounding area. A first convex portion 13 as an island portion is formed integrally with the first housing 11 in the concave portion 12, and parallel to the first convex portion 13 on both sides of the first convex portion 13. An extending side wall 14 is formed integrally with the first housing 11.

  In this case, the first convex portion 13 and the side wall portion 14 protrude upward from the bottom surface of the concave portion 12 and extend in the longitudinal direction of the first housing 11. Thereby, on both sides of the first convex portion 13, as a part of the concave portion 12, a concave groove portion 12 a that is an elongated concave portion extending in the longitudinal direction of the first housing 11 is formed between the first convex portion 13 and the side wall portion 14. Formed between.

  Here, on both side surfaces of the first convex portion 13, concave terminal-shaped first terminal accommodating inner cavities 15 a are formed. Further, a groove-shaped first terminal accommodating outer cavity 15 b is formed on the inner side surface of the side wall portion 14. The first terminal housing inner cavity 15a and the first terminal housing outer cavity 15b are connected to each other at the bottom surface of the groove 12a and are integrated with each other. Therefore, the first terminal housing inner cavity 15a and the first terminal housing outer cavity 15b are integrated with each other. In a case where 15b is described in an integrated manner, the first terminal accommodating cavity 15 will be described.

  In the present embodiment, the first terminal accommodating cavities 15 are formed on both sides in the width direction of the first housing 11 side by side in the longitudinal direction of the first housing 11. Specifically, a plurality of pieces are formed on both sides of the first convex portion 13 at a predetermined pitch. A plurality of first terminals 61 as terminals accommodated in each of the first terminal accommodating cavities 15 are also arranged at a similar pitch on both sides of the first convex portion 13.

  In addition, the first terminal 61 accommodated in each of the first terminal accommodating cavities 15 includes two types of the first terminal 61 </ b> A having a wide width and the first terminal 61 </ b> B having a narrow width. There are also two types, a wide first terminal accommodating cavity 15A for accommodating the wide first terminal 61A and a narrow first terminal accommodating cavity 15B for accommodating the narrow first terminal 61B. The wide first terminal accommodating cavities 15A are formed on both ends in the longitudinal direction in each row on both sides in the width direction of the first housing 11, and the narrow first terminal accommodating cavities 15B are formed on both ends in each row. Are formed between the wide first terminal accommodating cavities 15A. In the example shown in the figure, for convenience of explanation, two narrow first terminal accommodating cavities 15B are formed on both sides of the first convex portion 13, but the number is one by one. 3 or more, and can be arbitrarily set.

  The wide first terminal accommodating cavity 15A and the narrow first terminal accommodating cavity 15B have the same configuration except for the width dimension. explain. In addition, since the wide first terminal 61 </ b> A and the narrow first terminal 61 </ b> B have the same configuration except for the width dimension, they will be described as the first terminal 61 when they are described in an integrated manner.

  The first terminal 61 is a member integrally formed by punching and bending a conductive metal plate, and one end is connected to the held portion 63 and the lower end of the held portion 63. The tail portion 62 and an elastically deformable contact arm portion 68 having one end connected to the upper end of the held portion 63 are included. The contact arm portion 68 is a plate member bent in a substantially U-shape, specifically, an upper connection portion 67 connected to the upper end of the held portion 63, and an inner portion of the upper connection portion 67. A second contact portion 66 formed near the end, a lower connection portion 64 connected to the second contact portion 66, and a first contact portion 65 formed near the free end of the lower connection portion 64. With.

  The held portion 63 is a portion that extends in the vertical direction, that is, the thickness direction of the first housing 11 and is fitted and held in the first terminal housing outer cavity 15b. The tail portion 62 is bent and connected to the held portion 63, extends outward in the left-right direction, that is, the width direction of the first housing 11, and is connected to the conductive trace of the first substrate. The connection pads are connected by soldering or the like.

  Further, the contact arm portion 68 extends from the held portion 63 toward the inner side in the width direction of the first housing 11. Specifically, the upper connection portion 67 is bent and connected to the held portion 63, and extends toward the inner side in the width direction of the first housing 11. A second contact portion 66 that is bent downward and curved so as to protrude toward the inner side in the width direction of the first housing 11 is formed at the inner end of the upper connection portion 67. Further, the lower connection portion 64 is a portion having a U-shaped side surface shape connected to the lower end of the second contact portion 66. A first contact portion that is bent in a U shape and curved toward the outer side in the width direction of the first housing 11 near the free end of the lower connection portion 64, that is, in the vicinity of the inner upper end. 65 is formed.

  In particular, since the first contact portion 65 of the wide first terminal 61 </ b> A is wide in the longitudinal direction of the first housing 11, the contacting portion has a cylindrical shape with the longitudinal direction as an axis due to bending.

  The first terminal 61 is inserted into the first terminal accommodating cavity 15 from the mounting surface 11b side (lower side in FIG. 3), and the held portion 63 is formed on the inner side surface of the side wall portion 14. It is fixed to the first housing 11 by being sandwiched from both sides by the side wall of the housing outer cavity 15b. In this state, that is, in a state where the first terminal 61 is loaded in the first housing 11, the first contact portion 65 and the second contact portion 66 are located on both the left and right sides of the recessed groove portion 12a and face each other. Yes. And the space | interval of the 1st contact part 65 and the 2nd contact part 66 which mutually opposes from the space | interval of the 1st contact part 165 and the 2nd contact part 166 of the 2nd terminal 161 with which the 2nd connector 101 is provided later. Is also set to be narrower. The first contact portion 65 and the second contact portion 66 are both set to overlap the second terminal 161.

  In addition, since the 1st terminal 61 is a member integrally formed by processing a metal plate, it is provided with elasticity. The first contact portion 65 and the second contact portion 66 can both be elastically displaced in the width direction of the first housing 11. Further, the distance between the first contact portion 65 and the second contact portion 66 facing each other can be elastically changed. That is, when the second terminal 161 is inserted between the first contact portion 65 and the second contact portion 66, the first contact portion 65 and the second contact portion 66 are elastically formed in the width direction of the first housing 11. The distance between the first contact portion 65 and the second contact portion 66 is elastically extended.

  Further, all the first terminals 61, that is, both the wide first terminal 61A and the narrow first terminal 61B pass through the held portion 63 from the vertical cross-sectional shape, that is, from the free end of the tail portion 62. The cross-sectional shape along the axis extending to the free end of the contact arm portion 68 is the same. Accordingly, in all the first terminals 61, the electrical length from the tail portion 62 to the contact portion with the second terminal 161 is equal.

  Further, first projecting end portions 21 as fitting guide portions are respectively disposed at both longitudinal ends of the first housing 11. Each first projecting end portion 21 is formed with a projecting end recess 22 as a part of the recess 12. The projecting end recess 22 is a substantially rectangular recess and is connected to both ends in the longitudinal direction of each recess 12a. And the protrusion end recessed part 22 inserts the 2nd protrusion end part 122 of the 2nd housing 111 mentioned later with which this 2nd connector 101 is equipped in the state which the 1st connector 1 and the 2nd connector 101 were fitted. Functions as an insertion recess.

  The pair of inner wall surfaces 22 a located on both sides in the width direction of the first housing 11 in the protruding end recess 22 are in the longitudinal direction of the first housing 11 and the fitting direction of the first connector 1 and the second connector 101. A reference for positioning the second housing 111 with respect to the width direction of the first housing 11, facing the pair of outer wall surfaces 122 a of the second projecting end 122 inserted into the projecting end recess 22. Functions as a surface. The interval between the inner wall surfaces 22a facing each other is set to be wider than the interval between the outer wall surfaces 122a. That is, a clearance in the width direction of the first housing 11 is set between the opposed inner wall surface 22a and outer wall surface 122a.

  Further, the first projecting end portion 21 extends from both longitudinal ends of the side wall portion 14 in the longitudinal direction of the first housing 11, and extends in the short direction of the first housing 11. Includes an end wall portion 21c connected to the side wall extension portion 21b.

  Further, a first reinforcing metal fitting 51 as a reinforcing metal fitting is attached to the first protruding end portion 21. The first reinforcing metal fitting 51 is housed and held in a first metal fitting holding recess 26 formed on the outer periphery of the first protruding end 21. The first metal fitting holding recess 26 extends in the thickness direction of the first housing 11 and along the central axis of the U-shaped side wall formed by the end wall 21c and the side wall extension 21b connected to both ends thereof. A continuous outer end accommodating portion 26a extending in the direction and connected to the outer end accommodating portion 26a. The outer end accommodating portion 26a is formed between the side wall portion 14 and the side wall extension portion 21b. A side plate portion receiving cavity 26d that opens toward the side, and a central leg receiving cavity 26c that is connected to the outer end portion receiving portion 26a and opens to the outer surface of the end wall portion 21c.

  The first reinforcing bracket 51 is a member that is integrally formed by punching, bending, or the like on a metal plate. The first reinforcing bracket 51 is a first elongated strip-shaped main body that extends in the width direction of the first housing 11. 1 main body portion 52 and a first side plate portion 57 as a side plate portion that is bent and connected to the outer end in the width direction of the first housing 11 in the first main body portion 52 and extends in the longitudinal direction of the first housing 11. Prepare. The first reinforcing bracket 51 is U-shaped when viewed from the fitting surface 11 a side, and is accommodated in each first bracket holding recess 26.

  The first reinforcing bracket 51 further includes a first side leg portion 56 as a board connecting portion connected to a lower end of the first side plate portion 57, and an inner side in the width direction of the first housing 11 in the first main body portion 52. And a first central leg portion 55 as a substrate connecting portion connected to the lower end of the end. The first side leg portion 56 is a plate-like member extending on the same plane as the first side plate portion 57, and the first central leg portion 55 extends on the same plane as the first main body portion 52. It is a plate-shaped member. The lower end of the first side leg portion 56 can be connected to a connection pad formed on the surface of the first substrate by soldering or the like. Since the lower end of the first side leg portion 56 is connected to the reinforcing connection pad of the first substrate by soldering or the like, the first reinforcing metal fitting 51 is more difficult to deform, so that the strength of the first housing 11 is increased. Reinforced more effectively.

  The first reinforcing metal fitting 51 is fitted into the first metal fitting holding recess 26 from the fitting surface 11a side, the first side leg portion 56 is accommodated in the side plate portion accommodating cavity 26d, and the first central leg portion 55 is accommodated. Is accommodated in the central leg accommodating cavity 26 c and fixed to the first housing 11.

  Next, the configuration of the second connector 101 will be described.

  4 is a perspective view of the second connector according to the embodiment of the present invention, and FIG. 5 is an exploded view of the second connector according to the embodiment of the present invention as viewed obliquely from above. In FIG. 4, (a) is a diagram viewed from diagonally above, and (b) is a diagram viewed from diagonally below.

  The second connector 101 as a mating connector has a second housing 111 that is a mating housing as a second connector body integrally formed of an insulating material such as synthetic resin. As shown in the drawing, the second housing 111 has a substantially rectangular thick plate shape that is a substantially rectangular parallelepiped. Then, on the side of the second housing 111 that is inserted into the first connector 1, that is, on the side of the fitting surface 111 a (the upper side in FIG. 4A), an elongated groove portion extending in the longitudinal direction of the second housing 111. 113 and the 2nd convex part 112 as the elongate convex part extended in the longitudinal direction of the 2nd housing 111 while defining the outer side of this concave groove part 113 are integrally formed. The second convex portion 112 is formed along both sides of the concave groove portion 113 and along both sides of the second housing 111.

  Further, each of the second convex portions 112 extends continuously across the side surface on the inner side of the second convex portion 112, the upper surface of the second convex portion 112, and the outer side surface of the second convex portion 112. A concave terminal-shaped second terminal accommodating cavity 115 is provided. The second terminal 161 as the counterpart terminal is accommodated and loaded in the second terminal accommodating cavity 115. As shown in the figure, the groove 113 is closed on the side mounted on the second substrate, that is, on the mounting surface 111b (the lower surface in FIG. 4B) by the bottom.

  In the present embodiment, the second terminal accommodating cavities 115 are formed on both sides in the width direction of the second housing 111 side by side in the longitudinal direction of the second housing 111. Specifically, a plurality of second protrusions 112 are formed at a predetermined pitch. A plurality of second terminals 161 as terminals accommodated in each of the second terminal accommodating cavities 115 are also arranged on the second convex portion 112 at a similar pitch.

  In addition, the second terminal 161 accommodated in each of the second terminal accommodating cavities 115 includes two types of the wide second terminal 161A and the narrow second terminal 161B. There are also two types, a wide second terminal accommodating cavity 115A for accommodating the wide second terminal 161A and a narrow second terminal accommodating cavity 115B for accommodating the narrow second terminal 161B. The wide second terminal accommodating cavities 115A are respectively formed at both ends in the longitudinal direction in each row on both sides in the width direction of the second housing 111, and the narrow second terminal accommodating cavities 115B are formed at both ends in each row. Are formed between the wide second terminal accommodating cavities 115A. In the example shown in the figure, for convenience of explanation, two narrow second terminal accommodating cavities 115B are formed on the second convex portions 112 on both sides, but the number is one by one. 3 or more, and can be arbitrarily set.

  The wide second terminal accommodating cavity 115A and the narrow second terminal accommodating cavity 115B have the same configuration except for the width dimension. explain. In addition, since the wide second terminal 161A and the narrow second terminal 161B have the same configuration except for the width dimension, the second terminal 161 will be described in an integrated description.

  The second terminal 161 is a member integrally formed by punching and bending a conductive metal plate, and is connected to the held portion 163 and the lower end of the held portion 163. A tail portion 162, a connection portion 164 connected to the upper end of the held portion 163, a first contact portion 165 connected to the inner end of the connection portion 164, and an outer surface of the held portion 163 A second contact portion 166 formed. In the second terminal 161, the portion excluding the tail portion 162 is substantially U-shaped. A second contact recess 166 a is formed on the surface of the second contact portion 166.

  In the present embodiment, the first contact portion 165 is formed in a planar shape. As described above, since the first contact portion 65 of the wide first terminal 61 </ b> A is cylindrical with the longitudinal direction of the first housing 11 as an axis, the first contact portion 65 is formed of the planar second terminal 161. The first contact portion 165 can be brought into contact with the entire length direction, that is, the terminal width direction.

  Further, since the first contact portion 65 is formed on the distal end side of the first terminal 61 and is relatively flexible, even if the planar first contact portion 165 is slightly inclined with respect to the longitudinal direction. It can follow and contact the whole width direction.

  The second terminal 161 is inserted into the second terminal accommodating cavity 115 from the fitting surface 111a side, and the held portion 163 is formed on the outer side surface of the second convex portion 112 in the second terminal accommodating cavity 115. The second housing 111 is fixed to the second housing 111 by being accommodated in the portion formed and sandwiched by the side walls from both sides. Desirably, the second terminal 161 is fixed integrally with the second housing 111 by a molding method called insert molding or overmold molding.

  In this state, that is, in a state where the second terminal 161 is loaded in the second housing 111, the surfaces of the first contact portion 165, the connection portion 164, and the second contact portion 166 are fitted to the respective side surfaces of the second convex portion 112. The surface is exposed. The tail portion 162 extends outward from the second housing 111 and is connected to a connection pad connected to a conductive trace on the second substrate by soldering or the like.

  Since the first contact portion 165 and the second contact portion 166 are fixed to the second housing 111 so as to sandwich the second convex portion 112 from both sides, both are substantially the second housing. 111 cannot be displaced in the width direction, and the interval is not changed. That is, even if the second terminal 161 is inserted between the first contact portion 65 and the second contact portion 66 of the first terminal 61, the first contact portion 165 and the second contact portion 166 are substantially the second. The first contact portion 65 and the second contact portion 66 are elastically displaced without being displaced in the width direction of the housing 111.

  Further, all the second terminals 161, that is, both the wide second terminal 161 </ b> A and the narrow second terminal 161 </ b> B pass through the held portion 163 from the vertical cross-sectional shape, that is, from the free end of the tail portion 162. And the cross-sectional shape along the axis line extended to the front-end | tip of the 1st contact part 165 is the same. Therefore, in all the second terminals 161, the electrical length from the tail portion 162 to the contact portion with the first terminal 61 is equal.

  And the 2nd protrusion end part 122 as an other party fitting guide part is each arrange | positioned at the longitudinal direction both ends of the said 2nd housing 111. As shown in FIG. The second projecting end portion 122 is a thick member that extends in the width direction of the second housing 111 and has both ends connected to both ends in the longitudinal direction of the second convex portions 112. And the said 2nd protrusion end part 122 is inserted in the protrusion end recessed part 22 of the 1st protrusion end part 21 with which the said 1st connector 1 is provided in the state in which the 1st connector 1 and the 2nd connector 101 were fitted. It functions as an insertion convex part.

  The pair of outer wall surfaces 122a located on both sides in the width direction of the second housing 111 at the second projecting end portion 122 are the longitudinal direction of the second housing 111 and the fitting direction of the first connector 1 and the second connector 101. The second protruding end portion 122 is inserted into the first protruding end portion 21 of the first protruding end portion 21 so as to face the pair of inner wall surfaces 22a of the protruding end recess 22 and to the second housing 111 in the width direction. 1 functions as a reference plane for positioning the housing 11. The interval between the outer wall surfaces 122a is set to be narrower than the interval between the inner wall surfaces 22a. That is, a clearance in the width direction of the second housing 111 is set between the opposed inner wall surface 22a and outer wall surface 122a.

  Next, an operation of fitting the first connector 1 and the second connector 101 having the above-described configuration will be described.

  FIG. 6 is a trihedral view showing a state in which the first connector and the second connector are fitted to each other in the embodiment of the present invention, and FIG. 7 is an overlap of the first terminal and the second terminal in the embodiment of the present invention. It is a figure explaining the relationship with the clearance of a 1st housing and a 2nd housing. 6, (a) is a perspective view seen from diagonally above, (b) is a perspective view seen from diagonally below, (c) is a side view, and (a) and (b) in FIG. These are AA and BB arrow sectional drawing in FIG.6 (c).

  In the present embodiment, the first terminal 61 and the second terminal 161 may be connected to the signal line or may be connected to the power line.

  For example, all of the first terminals 61 and all of the second terminals 161 can be connected to the power line as parallel circuits. In this case, the wide first terminal 61A and the narrow first terminal 61B have the same vertical cross-sectional shape and the same electrical length, differ only in the width dimension, and similarly, the wide second terminal 161A and the width Since the narrow second terminal 161B has the same longitudinal cross-sectional shape, the same electrical length, and only the width dimension is different, the resistance value depends only on the width dimension, and the diversion calculation can be easily performed. It becomes. In addition, since the first terminal 61A and the second terminal 161A having a large current amount and a large amount of heat generation are present at both ends in the longitudinal direction of the first housing 11 and the second housing 111, heat is transferred to the outside. It is easy to dissipate and heat does not accumulate inside the first connector 1 and the second connector 101.

  Further, for example, the wide first terminal 61A and the second terminal 161A can be connected to the power line, and the narrow first terminal 61B and the second terminal 161B can be connected to the signal line. In this case, for example, a power line from a battery mounted on an electronic device or the like is connected to the wide first terminal 61A and the second terminal 161A, and a signal indicating the identification number, remaining amount, temperature, etc. of the battery is conveyed. The signal line can be connected to the narrow first terminal 61B and the second terminal 161B. Also in this case, since the wide first terminal 61A and the second terminal 161A to which the power line is connected are present at both ends in the longitudinal direction of the first housing 11 and the second housing 111, heat is dissipated to the outside. It is easy and heat does not accumulate inside the first connector 1 and the second connector 101.

  Here, the first connector 1 is connected by soldering or the like to the connection pads connected to the conductive traces of the first substrate (not shown) of the tail portion 62 of the first terminal 61, and the first connector 1 It is assumed that the lower end of the side leg portion 56 is surface-mounted on the first substrate by being connected to the reinforcing connection pad of the first substrate by soldering or the like. The conductive trace connected to the connection pad to which the tail portion 62 of the narrow first terminal 61B is connected is a signal line and is connected to the connection pad to which the tail portion 62 of the wide first terminal 61A is connected. The conducted traces shall be power lines. The connection pads to which the tail portions 62 are connected are separated from each other. Therefore, it is assumed that each of the four power lines is connected to each of the four wide first terminals 61A provided in the first connector 1.

  Similarly, the second connector 101 is surface-mounted on the second substrate by connecting the tail portion 162 of the second terminal 161 to a connection pad connected to a conductive trace of the second substrate (not shown) by soldering or the like. It shall be. The conductive trace connected to the connection pad to which the tail portion 162 of the narrow second terminal 161B is connected is a signal line and is connected to the connection pad to which the tail portion 162 of the wide second terminal 161A is connected. The conducted traces shall be power lines. Further, the connection pads to which the tail portions 162 are connected are separated from each other. Accordingly, it is assumed that each of the four power lines is connected to each of the four wide first terminals 161A provided in the second connector 101.

  First, the operator makes the fitting surface 11a of the first housing 11 of the first connector 1 and the fitting surface 111a of the second housing 111 of the second connector 101 face each other, and the second protrusion of the second connector 101 is made. The position of the portion 112 matches the position of the corresponding recessed groove portion 12 a of the first connector 1, and the position of the second protruding end portion 122 of the second connector 101 matches the position of the corresponding protruding end recessed portion 22 of the first connector 1. Then, the alignment between the first connector 1 and the second connector 101 is completed.

  In this state, when the first connector 1 and / or the second connector 101 is moved in the direction approaching the other side, that is, in the fitting direction, the second convex portion 112 and the second projecting end portion 122 of the second connector 101. Is inserted into the recessed groove portion 12 a and the protruding end recessed portion 22 of the first connector 1. As a result, as shown in FIG. 6, when the first housing 11 and the second housing 111 are fitted and the fitting between the first connector 1 and the second connector 101 is completed, the first terminal 61 and the second housing The terminal 161 becomes conductive.

  Specifically, the second terminal 161 of the second connector 101 is inserted between the first contact portion 65 and the second contact portion 66 of each first terminal 61, and the first contact portion 65 and the first contact portion 65 of the first terminal 61 are inserted. The first contact portion 165 of the two terminal 161 comes into contact with the second contact portion 66 of the first terminal 61 and the second contact portion 166 of the second terminal 161 comes into contact with each other. As a result, the conductive trace connected to the connection pad on the first substrate to which the tail portion 62 of the first terminal 61 is connected, and the connection pad on the second substrate to which the tail portion 162 of the second terminal 161 is connected. The connected conductive traces conduct. In this case, since the first terminal 61 and the second terminal 161 are in a multipoint contact, the conduction state is reliably maintained.

  The first contact portion 65 and the second contact portion 66 sandwich the second terminal 161 from both sides by the function of the contact arm portion 68 as a spring portion. Further, the second contact portion 66 of the first terminal 61 engages with a second contact recess 166 a formed on the surface of the second contact portion 166 of the second terminal 161. Thereby, since the 2nd terminal 161 is firmly hold | maintained by the 1st terminal 61, it is prevented that the 2nd terminal 161 separates from the 1st terminal 61, and the fitting of the 1st connector 1 and the 2nd connector 101 is carried out. Is reliably maintained.

  Even if the second terminal 161 is displaced relative to the first terminal 61 in the width direction of the first housing 11 due to the function of the contact arm portion 68 as a spring portion, the first contact portion 65 and the second contact portion 68 are not affected. The contact portion 66 can maintain a contact state between the first contact portion 165 and the second contact portion 166 of the second terminal 161. Therefore, vibrations and shocks that occur when the electronic device or the like on which the first substrate and the second substrate are mounted fall or receive external force are transmitted, and the second terminal 161 is connected to the first terminal 61 by the second terminal 161. Even when the housing 11 is relatively displaced in the width direction, the conduction state between the first terminal 61 and the second terminal 161 can be maintained, so that the conduction is temporarily interrupted. The phenomenon called disconnection does not occur.

  Further, since the first arm 61A having a wide width, which functions as a spring portion of the contact arm portion 68, is exerted more strongly than the first terminal 61B having a narrow width, the first housing 11 has both ends in the longitudinal direction. 2 Even when the housing 111 is displaced relative to the first housing 11 or to be twisted (twisted), the first terminal 61A having a wide width at a distance from the rotation center Since the rotational moment resulting from the spring force exerted by the contact arm portion 68 is large, the amount of displacement is suppressed and no instantaneous interruption occurs.

  As described above, the first contact portion 65 and the second contact portion 66 of the first terminal 61 are set to overlap the second terminal 161. Here, the overlap means that the contact arm portion 68 is not elastically deformed, that is, when the first contact portion 65 and the second contact portion 66 are not elastically displaced, as shown in FIG. As shown in the drawing, the first connector 1 and the second connector 101 are in a state in which the center axis in the width direction of the first housing 11 and the center axis in the width direction of the second housing 111 coincide as shown by the axis C. The first contact portion 65 and the second contact portion 66 overlap the second terminal 161 when the fitting is completed, and the overlap amount is the overlap amount.

  In other words, the overlap is a cross-sectional view of the first connector 1 when the first terminal 61 is in an initial state before the contact arm portion 68 is elastically deformed, in the width direction of the first housing 11. The first contact portion 65 and the second contact portion 66 are connected to the second terminal 161 when the second connector 101 is overlapped with the transverse cross-sectional view so that the center axis of the second housing 111 coincides with the center axis of the second housing 111 The amount of overlap is the overlap amount.

  In the present embodiment, not only one of the two contact portions of the first terminal 61 but both of the two contact portions, that is, any of the first contact portion 65 and the second contact portion 66. Is set to overlap the second terminal 161. Specifically, the overlap amount of the first contact portion 65 is an overlap amount of the second terminal 161 with respect to the first contact portion 165, and is indicated by α1 in FIG. The overlap amount is the overlap amount with respect to the second contact recess 166a formed on the surface of the second contact portion 166 of the second terminal 161, and is indicated by α2 in FIG.

  Note that α1> α2 is set. This is because the second contact portion 66 that is relatively close to the held portion 63 held and fixed by the first housing 11 has a relatively low elasticity, that is, is relatively hard and has a relatively small amount of elastic displacement. This is because the first contact portion 65 that is relatively small from the held portion 63 is relatively high in elasticity, that is, is relatively soft and has a relatively large elastic displacement.

  As described above, since both the first contact portion 65 and the second contact portion 66 existing on both sides of the second terminal 161 overlap the second terminal 161, the second terminal 161 is compared with the first terminal 61. The first contact part 65 and the second contact part 66 can be displaced following the displacement regardless of whether the first housing 11 is relatively displaced to the left or right in the width direction, and the second terminal 161 is sandwiched from both sides. Can be maintained. Therefore, even when the second terminal 161 is relatively displaced in the width direction of the first housing 11 with respect to the first terminal 61, the second terminal 161 is prevented from being detached from the first terminal 61, While fitting with the 1st connector 1 and the 2nd connector 101 is maintained reliably, the amount of displacement is controlled and an instantaneous interruption does not occur. Further, the electrical length from the tail portion 62 to the contact portion with the second terminal 161 does not change.

  For example, if only the first contact portion 65 is set to overlap the second terminal 161 and the second contact portion 66 is set not to overlap the second terminal 161, the second terminal 161 is the first terminal. When the terminal 61 is displaced in a direction away from the held portion 63, the second contact portion 66 cannot be displaced following the movement, and is separated from the second terminal 161. Then, since the state in which the first terminal 61 clamps the second terminal 161 from both sides is not maintained, the fitting of the first connector 1 and the second connector 101 becomes uncertain and the displacement amount increases. There may be a momentary interruption. Furthermore, since the contact with the second terminal 161 at a position near the tail portion 62 disappears and the second terminal 161 comes into contact with a position far from the tail portion 62, the electrical length increases.

  Further, as described above, the clearance in the width direction of the first housing 11 is between the inner wall surface 22a of the protruding end recess 22 of the first housing 11 and the outer wall surface 122a of the second protruding end portion 122 of the second connector 101. Is set to occur. Here, the clearance in the width direction of the first housing 11 is, as shown in FIG. 7B, the center axis in the width direction of the first housing 11 and the center axis in the width direction of the second housing 111. As shown by the axis C, when the fitting between the first connector 1 and the second connector 101 is completed in a matched state, the inner wall surface 22a of the protruding end recess 22 of the first housing 11 and the protruding end recess 22 is a gap between the second protruding end 122 of the second connector 101 inserted into the outer wall surface 122a of the second connector 101, and the amount of the gap is the clearance amount.

  In other words, the clearance in the width direction of the first housing 11 is a cross-sectional view of the first connector 1 in which the center axis in the width direction of the first housing 11 coincides with the center axis in the width direction of the second housing 111. As described above, when the second connector 101 is superimposed on the cross-sectional view, it is a gap generated between the inner wall surface 22a and the outer wall surface 122a facing each other, and the amount of the gap is the clearance amount.

  In the present embodiment, both the overlap amounts of the first contact portion 65 and the second contact portion 66 are set larger than the clearance amount in the width direction of the first housing 11. Specifically, the clearance amount in the width direction of the first housing 11 is indicated by β in FIG. Then, α1> α2> β is set.

  As described above, since both the overlap amounts of the first contact portion 65 and the second contact portion 66 are larger than the clearance amount in the width direction of the first housing 11, the second terminal 161 with respect to the first terminal 61. Even if the first housing 11 is displaced relatively to the left or right in the width direction, the displacement amount does not exceed the clearance amount, so the first contact portion 65 and the second contact portion 66 are displaced following the displacement. The second terminal 161 can be held from both sides. Therefore, even when the second terminal 161 is relatively displaced in the width direction of the first housing 11 with respect to the first terminal 61, the second terminal 161 is prevented from being detached from the first terminal 61, While fitting with the 1st connector 1 and the 2nd connector 101 is maintained reliably, the amount of displacement is controlled and an instantaneous interruption does not occur. Further, the electrical length from the tail portion 62 to the contact portion with the second terminal 161 does not change.

  As described above, in the present embodiment, the connector includes the first housing 11 and the plurality of first terminals 61 loaded on both sides in the width direction of the first housing 11 along the longitudinal direction of the first housing 11. The first connector 1, the second housing 111 fitted to the first housing 11, and a plurality of second terminals 161 loaded on both sides in the width direction of the second housing 111 side by side in the longitudinal direction of the second housing 111. And a second connector 101 provided. Each of the first terminals 61 includes a first contact portion 65 and a second contact portion 66 facing each other, and the first contact portion 65 and the second contact portion 66 both overlap the second terminal 161. Each of the second terminals 161 is inserted between the first contact portion 65 and the second contact portion 66 of the corresponding first terminal 61 when the first housing 11 and the second housing 111 are fitted. Contact the first terminal 61.

  Thereby, the engagement state of the 1st terminal 61 and the 2nd terminal 161 can be maintained reliably, the fitting with the 1st connector 1 and the 2nd connector 101 is hold | maintained reliably, and reliability is improved. be able to. Further, even when the second terminal 161 is relatively displaced in the width direction of the first housing 11 with respect to the first terminal 61, the second terminal 161 is prevented from being detached from the first terminal 61, While fitting with the 1st connector 1 and the 2nd connector 101 is maintained reliably, the amount of displacement is controlled and an instantaneous interruption does not occur.

  The overlap amount of the first contact portion 65 and the second contact portion 66 is larger than the clearance amount in the width direction of the first housing 11. Accordingly, even when the second terminal 161 is displaced relative to the first terminal 61 in the width direction of the first housing 11, both the first contact portion 65 and the second contact portion 66 are the first one. There is no detachment from the two terminals 161, and the electrical length from the tail portion 62 to the contact portion with the second terminal 161 does not change.

  Furthermore, the first terminal 61 </ b> A located on both ends in the longitudinal direction of the first housing 11 among the plurality of first terminals 61 is wider than the other first terminals 61 </ b> B, and among the plurality of second terminals 161. The second terminal 161A located on both ends in the longitudinal direction of the second housing 111 is wider than the other second terminals 161B. Thereby, heat is easily dissipated to the outside, and heat is not trapped inside the first connector 1 and the second connector 101. Further, even when the second housing 111 is displaced relative to the first housing 11 so as to rotate or twist, the amount of displacement is suppressed and no instantaneous interruption occurs.

  Further, all of the plurality of first terminals 61 have the same vertical cross-sectional shape, and all of the plurality of second terminals 161 have the same vertical cross-sectional shape. Thereby, since the engagement state of all the 1st terminals 61 and the 2nd terminal 161 becomes equal, fitting with the 1st connector 1 and the 2nd connector 101 is hold | maintained reliably, and reliability can be improved. it can.

  Further, in the present embodiment, the second contact recess 166a outside the second terminal 161 is brought into contact with the second contact portion 66 near the tail portion 62 and the held portion 63 of the first terminal 61, and inside the second terminal. The planar first contact portion 165 and the first contact portion 65 on the tip side far from the tail portion 62 of the first terminal 61 are brought into contact with each other.

  Since the second contact portion 66 of the first terminal 61 is close to the tail portion 62 and the held portion 63, the second contact portion 66 has high rigidity, and can have good contact pressure and fitting force by contacting the second contact recess 166a during fitting. it can.

  Further, since the first contact portion 65 of the first terminal 61 is far from the tail portion 62 and the held portion 63 and is relatively flexible, the first contact portion 65 makes good contact with the first contact portion 165 of the planar second terminal 161. Even when the full contact width between the second contact recess 166a and the second contact portion 66 cannot be maintained due to an impact or the like, the contact in the width direction of the terminal at the first contact portion 65 is stably maintained. be able to.

  In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.

  The present invention can be applied to a connector.

DESCRIPTION OF SYMBOLS 1 1st connector 11 1st housing 11a, 111a Fitting surface 11b, 111b Mounting surface 12 Concave part 12a, 113 Concave groove part 13 First convex part 14 Side wall part 15a 1st terminal accommodation inner cavity 15A Wide 1st terminal accommodation cavity 15b First terminal housing outer cavity 15B Narrow first terminal housing cavity 21 First projecting end 21b Side wall extension 21c End wall 22 Projecting end recess 22a Inner wall 26 First metal fitting retaining recess 26a Outer end housing 26c Center Leg housing cavity 26d Side plate housing cavity 51, 851 First reinforcing bracket 52 First body 55 First central leg 56 First side leg 57 First side plate 61 First terminal 61A Wide first terminal 61B Narrow first terminals 62 and 162 Tail portions 63 and 163 Hold portion 64 Lower connection portions 65 and 165 First contact portions 66 and 16 Second contact portion 67 Upper connection portion 68 Contact arm portion 101 Second connector 111 Second housing 112 Second convex portion 115A Wide second terminal accommodating cavity 115B Narrow second terminal accommodating cavity 122 Second protruding end portion 122a Outside Wall surface 161 Second terminal 161A Wide second terminal 161B Narrow second terminal 164 Connection portion 166a Second contact recess 852, 952 Main body portion 854, 954 Central engagement piece 854a Central engagement edge portion 856, 956 Substrate connection portion 858, 958 Side engagement piece 858a Side engagement recess 951 Second reinforcing bracket 954a Center engagement projection 958a Side engagement projection

Claims (5)

(A) a first connector comprising a first connector main body and a plurality of first terminals loaded on both sides in the width direction of the first connector main body in a longitudinal direction of the first connector main body;
(B) a second connector body that fits into the first connector body, and a plurality of second terminals that are arranged on both sides in the width direction of the second connector body along the longitudinal direction of the second connector body. A connector including a second connector,
(C) Each of the first terminals includes a first contact portion and a second contact portion facing each other,
(D) the first contact portion overlaps the corresponding second terminal;
(E) The overlap amount, which is a displacement amount in the width direction of the first contact portion, is larger than a clearance amount in the width direction of the first connector body,
(F) Each of the second terminals is inserted between the first contact portion and the second contact portion of the corresponding first terminal when the first connector main body and the second connector main body are fitted to each other. A connector in contact with the first terminal. The first terminal located on both ends in the longitudinal direction of the first connector body among the plurality of first terminals is wider than the other first terminals,
2. The connector according to claim 1, wherein among the plurality of second terminals, the second terminals positioned on both ends in the longitudinal direction of the second connector main body are wider than the other second terminals. The connector according to claim 1 or 2, wherein all of the plurality of first terminals have the same vertical cross-sectional shape, and all of the plurality of second terminals have the same vertical cross-sectional shape. Each of the first terminals includes a held portion held by the first connector body, the first contact portion, and a second contact portion, and is elastically deformable with one end connected to the held portion. The connector according to claim 1, further comprising a contact arm portion, wherein the second contact portion is positioned closer to the held portion than the first contact portion. Each of the first terminals includes a tail portion, one end of which is connected to the held portion and electrically connected to a connection pad on a substrate, and the held portion is more first than the contact arm portion. The connector of Claim 4 located in the width direction outer side of a connector main body.

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