JP2018198216A - connector - Google Patents

Abstract

To prevent a reinforcing metal fitting from deforming during fitting work or during fitting-releasing work, so as to enhance reliability.SOLUTION: A first housing includes first protruding end parts formed at both ends in a longitudinal direction, which fit to second protruding end parts formed at both ends in the longitudinal direction of a second housing of a second connector. The first protruding end parts include end wall part extending in a width direction of the first housing and side wall extending parts connected to both ends of the end wall parts and extended in the longitudinal direction of the first housing. First reinforcing metal fittings include a first main body part extending in a width direction of the first housing, connected arm parts connected to both ends of the first main body, and side guide parts connected to the connected arm parts, which are attached to the first protruding end parts. The side guide parts include upper wall parts positioned above the side wall extending parts and inner wall parts positioned inside the side wall extending parts.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. 10 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. 10B, reference numeral 851 denotes first reinforcing brackets 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. Side engagement pieces 858 extending in the longitudinal direction of the first connector from both ends of 852, and a board connection portion 856 for fixing soldered to the first circuit board connected to the lower ends of the side engagement pieces 858 , A side engaging protrusion 858a formed on the inner surface of the side engaging piece 858, and a housing locking protrusion 854 formed at the tip of the side engaging piece 858.

  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 disposed at the center in the width direction of the second connector. , A side engagement piece 958 extending from the left and right ends of the main body portion 952 to the outside in the width direction of the second connector, a side engagement convex portion 958a formed at the tip of the side engagement piece 958, the main body Board fixing portion 956 for soldering to the second circuit board connected to the lower end of the portion 952 (the upper end in the posture shown in the figure), and the housing locking portion formed on one surface of the main body portion 952 Convex part 952a is provided.

  When the first connector and the second connector are fitted, the side engaging convex portion 858a of the first reinforcing metal fitting 851 and the side engaging convex portion 958a of the second reinforcing metal fitting 951 are engaged with each other. Thereby, the 1st connector and the 2nd connector are locked, and the fitting state is held.

JP 2009-277365 A

  However, in the conventional connector, the side engaging piece 958 of the second reinforcing metal fitting 951 is not attached when the fitting is released, that is, when the fitting state between the first connector and the second connector is released. It may be deformed so that it can be lifted. When the fitting state between the first connector and the second connector is released, the side engaging convex portion 858a of the first reinforcing bracket 851 and the side engaging convex portion 958a of the second reinforcing bracket 951 are engaged. The releasing force is similarly applied, but the side engaging convex portion 858a of the first reinforcing metal fitting 851 is relatively close to the board connecting portion 856 fixed to the first circuit board, whereas the second engaging metal 851 is relatively close to the board connecting portion 856. Since the side engagement convex portion 958a of the reinforcing metal fitting 951 is relatively far from the main body portion 952 fixed to the housing and the second circuit board, the main body portion 952 and the side engagement convex portion 958a are connected. A large force is applied to the side engagement piece 958.

  An object of the present invention is to solve the problems of the conventional connector, and to provide a highly reliable connector without the deformation of the reinforcing metal fitting during the fitting operation or the fitting release operation.

  Therefore, in the connector of the present invention, the connector includes a first housing, a first terminal loaded in the first housing, and a first reinforcing metal fitting loaded in the first housing, 1 housing is the 1st projecting end part formed in the longitudinal direction both ends, Comprising: The 1st projecting end part fitted to the 2nd projecting end part formed in the longitudinal direction both ends of the 2nd housing of the 2nd connector The first projecting end includes an end wall extending in the width direction of the first housing, and a side wall extension connected to both ends of the end wall and extending in the longitudinal direction of the first housing. The first reinforcing bracket is connected to the first arm part extending in the width direction of the first housing, connection arm parts connected to both ends of the first body part, and the connection arm part. A side guide portion, and is attached to the first protruding end portion, Serial side guide section includes an upper wall portion located on the side wall extension, an inner wall portion located on the inner side of the side wall extension.

  In another connector of the present invention, the first reinforcing bracket further includes a fixing portion extending from a lower end of the inner wall portion.

  In still another connector according to the present invention, the first reinforcing fitting is an engaging recess formed in the inner wall portion, and the engaging protrusion included in the second reinforcing fitting to be loaded in the second housing. An engagement recess that can be engaged with the portion is further included.

  In still another connector according to the present invention, the first reinforcing metal fitting is formed in a central guide portion connected to the first main body portion and covering a part of the end wall portion, and the side guide portion. And an outer wall located outside the side wall extension.

  In the connector pair of this invention, it has the said connector and the 2nd connector fitted to this connector.

  According to the present invention, the reinforcing bracket is not deformed during the fitting operation or the fitting release operation, 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. FIG. 5 is a partially exploded view of the first connector according to the embodiment of the present invention as viewed obliquely from above, and shows a state in which only the first reinforcing bracket is removed. It is the perspective view of the 1st reinforcement metal fitting 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 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 a partially exploded view seen from diagonally above the 2nd connector in an embodiment of the invention, and is a figure showing the state where only the 2nd reinforcement metal fitting was removed. It is the perspective view of the 2nd reinforcement metal fitting 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 a perspective view which shows the positional relationship of the 1st connector and the 2nd connector in the fitting process of the connector in embodiment of this invention. It is the perspective view which shows the state which the fitting process of the connector in embodiment of this invention completed, Comprising: (a) is the figure seen from the 2nd connector side, (b) is the figure seen from the 1st connector side. is there. It is a two-plane figure which shows the state which the fitting process of the connector in embodiment of this invention completed, Comprising: (a) is a side view, (b) is AA arrow sectional drawing in (a). 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, and FIG. 2 is a partially exploded view of the first connector according to an embodiment of the present invention viewed obliquely from above, with only the first reinforcing bracket removed. FIG. 3 is a perspective view of the first reinforcing metal fitting of the first connector in the embodiment of the present invention. 1 and 3, (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 connector according to the present embodiment, which is a first connector as a mating connector of a pair of board-to-board connectors. The first connector 1 is a surface-mounting 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 connector to be described later. . 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 as a mating 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. Thus, on both sides of the first convex portion 13, concave groove portions 12 a that are elongated concave portions extending in the longitudinal direction of the first housing 11 are formed as a part of the concave portion 12.

  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 counterpart terminals accommodated in each of the first terminal accommodating cavities 15 are also arranged on both sides of the first convex portion 13 at the same pitch.

  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, four narrow first terminal accommodating cavities 15B are formed on both sides of the first convex portion 13, but the number is three or less. Alternatively, it may be 5 or more, and can be set arbitrarily.

  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 a held portion (not shown) and a lower end of the held portion. Tail portion 62, an upper connection portion 67 connected to the upper end of the held portion, a second contact portion 66 formed near the inner end of the upper connection portion 67, and the second contact portion 66 And a first contact portion 65 formed in the vicinity of the free end of the lower connection portion 64.

  The held portion extends in the vertical direction, that is, the thickness direction of the first housing 11, and is a portion that is fitted and held in the first terminal housing outer cavity 15b. The tail portion 62 is bent and connected to the held portion, 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. It is connected to the connection pad by soldering or the like.

  A curved second contact portion 66 that is bent downward and protrudes inward 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 curved first contact that is bent in a U-shape and protrudes outward in the width direction of the first housing 11 at the free end of the lower connection portion 64, that is, in the vicinity of the upper end of the inner side. A portion 65 is formed.

  The first terminal 61 is inserted into the first terminal accommodating cavity 15 from the mounting surface 11b side (lower side in FIG. 2), and the held portion 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 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.

  In addition, since the 1st terminal 61 is a member integrally formed by processing a metal plate, it has a certain amount of elasticity. As apparent from the shape, the distance between the first contact portion 65 and the second contact portion 66 facing each other can be changed elastically. That is, when a later-described second terminal 161 provided in the second connector 101 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 thereby inserted. The distance between and stretches elastically.

  Further, all of the first terminals 61, that is, both the wide first terminal 61A and the narrow first terminal 61B have a vertical cross-sectional shape, that is, from the free end of the tail portion 62, the first contact portion 65 The cross-sectional shape along the axis extending to the free end 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 counterpart mating guide portions are respectively disposed at both longitudinal ends of the first housing 11. Each first protruding end 21 is formed with a fitting recess 22 as a part of the recess 12. The fitting recess 22 is a substantially rectangular recess, and is connected to both longitudinal ends of each recess 12a. Then, in the fitting recess 22, a second protruding end 122 described later provided in the second connector 101 is inserted in a state where the first connector 1 and the second connector 101 are fitted.

  Further, the first projecting end portion 21 includes a side wall extension portion 21 c extending from both longitudinal ends of the side wall portion 14 in the longitudinal direction of the first housing 11 and an end wall portion extending in the width direction of the first housing 11. 21b. In each first projecting end portion 21, the end wall portion 21 b and the side wall extension portion 21 c form a substantially U-shaped side wall and define three sides of a substantially rectangular fitting recess 22.

  And the 1st reinforcement metal fitting 51 as a counterpart reinforcement metal fitting is attached to the said 1st protrusion end part 21. As shown in FIG. The first reinforcing metal fitting 51 is housed and held in a first metal fitting holding recess 26 formed in the first projecting end portion 21. The first metal fitting holding recess 26 has a continuous U-shape when viewed from the fitting surface side, opens to the upper surface 21a of the first projecting end portion 21, and extends in the thickness direction of the first housing 11 from the upper surface 21a. It is a slit-like space extending downward.

  The substantially U-shaped side wall formed by the end wall portion 21b and the side wall extension portion 21c is divided into an inner wall portion 21f and an outer wall portion 21k by the first metal fitting holding recess 26. The inner wall portion 21f is substantially U-shaped and is connected to both ends of the side wall portion 14 in the longitudinal direction. On the other hand, each outer wall portion 21k is divided into a central portion 21g and left and right corner portions 21h by a first arm portion receiving opening portion 26f and a first fixed portion receiving opening portion 26e provided in the first metal fitting holding recess 26. ing. The first fixing portion receiving opening 26e opens to the outer surface of the end wall portion 21b, and the first arm portion receiving opening 26f opens to the outer surface around the connection portion between the side wall extension portion 21c and the end wall portion 21b. . The outer wall surface of the central portion 21 g is the outermost surface in the longitudinal direction of the first housing 11.

  A second fixing portion receiving opening 26g is formed in a portion of the inner wall portion 21f adjacent to the end wall portion 21b of the side wall extension portion 21c. The second fixed portion accommodating opening 26g is formed so as to penetrate the bottom plate of the fitting recess 22.

  Furthermore, an inner end convex portion 25 protruding toward the first convex portion 13 is formed on the inner side surface of the end wall portion 21b. The opposing flat surface 25 a facing the first convex portion 13 in the inner end convex portion 25 is a plane that functions as a reference surface when positioning each portion of the first connector 1 in the longitudinal direction of the first housing 11.

  In the present embodiment, the first reinforcing metal fitting 51 is a member that is integrally formed by punching a metal plate and processing it such as bending, and is in the form of an elongated band extending in the width direction of the first housing 11. A first main body portion 52 as a main body portion, an elongated strip-like connecting arm portion 53 connected to the left and right ends of the first main body portion 52, and a side guide portion 55 connected to the tip of the connecting arm portion 53; And a central guide portion 57 connected to the upper end of the first main body portion 52.

  The first body portion 52 is fixed to the central portion 21g of the outer wall portion 21k. Further, the connecting arm portion 53 is a portion that is bent so as to be substantially L-shaped when viewed from above, that is, in plan view, and is a portion that can be elastically displaced in the vertical direction and the horizontal direction. The connecting arm portion 53 is accommodated in the first arm portion accommodating opening 26f in a state where the first reinforcing bracket 51 as shown in FIG. 1 is attached to the first projecting end portion 21.

  The side guide portion 55 is a substantially rectangular tube-shaped portion that extends from the distal end of the connection arm portion 53 in the longitudinal direction of the first housing 11, and includes an upper wall portion 55a, an inner wall portion 55b, and an outer wall portion 55d. Yes. The upper wall portion 55a is substantially parallel to the fitting surface 11a of the first housing 11, and covers the side wall extension portion 21c in a state where the first reinforcing bracket 51 is attached to the first protruding end portion 21. Yes. Further, the inner wall portion 55b is a flat plate-like portion extending downward from the inner end of the upper wall portion 55a, and in a state where the first reinforcing metal fitting 51 is attached to the first protruding end portion 21, The inner surface of the fitting recess 22 is covered. Further, the outer wall portion 55d is a flat plate-like portion that extends downward from the outer end of the upper wall portion 55a, is substantially parallel to the inner wall portion 55b, and is flush with the connection arm portion 53. In a state where the one reinforcing bracket 51 is attached to the first projecting end portion 21, the outer surface of the side wall extension portion 21c is covered.

  An engaging recess 55c as a mating engagement portion is formed at the front end portion (the end portion on the side opposite to the first main body portion 52) of the inner wall portion 55b. In the example shown in the figure, the engaging recess 55c is an opening penetrating the inner wall portion 55b in the plate thickness direction. However, when the first connector 1 and the second connector 101 are fitted, the second connector 101 As long as the tip 158a of the engagement protrusion 158 included in the second reinforcing metal fitting 151 described later can be engaged, it may have any shape, and does not necessarily have to penetrate the inner wall 55b. Furthermore, the counterpart engagement portion is not necessarily a recess such as the engagement recess 55c, and may be a protrusion that can be engaged with the tip 158a of the engagement protrusion 158. The case where it is the engagement recessed part 55c is demonstrated.

  Further, from the lower end of the rear end portion (connection portion with the first main body portion 52) of the connection arm portion 53 and the lower end of the rear end portion (end portion on the first main body portion 52 side) of the inner wall portion 55b. The first fixing portion 56a and the second fixing portion 56b that are connected and fixed to the surface of the first substrate by means such as soldering extend. Therefore, in a state where the first connector 1 is mounted on the surface of the first board, the side guide portion 55 is elastic in the vertical direction as a cantilever-like spring member having a fixed rear end and a free front end. Can be displaced. In addition, since they are fixed at the two positions of the rear end, that is, the first fixing portion 56a and the second fixing portion 56b, they are not peeled off from the surface of the first substrate.

  Further, the length from the first fixing portion 56a and the second fixing portion 56b to the engaging recess 55c located at the front end portion of the connecting arm portion 53 has a length along the members such as the connecting arm portion 53 and the side guide portion 55. The length of the part that functions as a spring is long, that is, the spring length is long. Thereby, the engaging recess 55c can be elastically displaced over a wide range in the vertical direction.

  The central guide portion 57 is a member that covers a part of the upper surface 21a of the inner wall portion 21f and a part of the inner side surface of the end wall portion 21b in a state where the first reinforcing metal fitting 51 is attached to the first protruding end portion 21. The central guide portion 57 has a base end connected to the upper end of the first main body portion 52, and an upper cover portion 57a having a curved shape so that the distal end faces obliquely downward, and a front end of the upper cover portion 57a. An end is connected, and an inner covering portion 57b is provided with the tip extending downward.

  In addition, a convex portion accommodation opening 57c that accommodates the inner end convex portion 25 is formed at the lower end central portion of the inner cover portion 57b, and thereby the first reinforcing metal fitting 51 is attached to the first protruding end portion 21. Even in the state, the opposing flat surface 25 a is exposed in the fitting recess 22. Further, when the convex portion receiving opening 57 c is fitted to the inner end convex portion 25, the first reinforcing bracket 51 is positioned with respect to the first protruding end portion 21.

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

  FIG. 4 is a perspective view of the second connector according to the embodiment of the present invention, and FIG. 5 is a partially exploded view of the second connector according to the embodiment of the present invention viewed obliquely from above, with only the second reinforcing bracket removed. FIG. 6 is a perspective view of the second reinforcing metal fitting of the second connector in the embodiment of the present invention. 4 and 6, (a) is a diagram viewed from diagonally above, and (b) is a diagram viewed from diagonally below.

  The second connector 101 as a connector in the present embodiment has a second housing 111 as a 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 to be fitted into the first connector 1, that is, on the fitting surface 111a side (the upper side in FIG. 5), an elongated groove 113 extending in the longitudinal direction of the second housing 111, A second convex portion 112 is integrally formed as an elongated convex portion that defines the outside of the concave groove portion 113 and extends in the longitudinal direction of the second housing 111. 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.

  In addition, each second protrusion 112 is provided with a second terminal 161 as a terminal. The concave groove 113 is closed by a bottom plate on the side mounted on the second substrate, that is, on the mounting surface 111b side (lower side in FIG. 5).

  The second terminal 161 includes two types, a wide second terminal 161A and a narrow second terminal 161B. The wide second terminals 161A 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 terminals 161B are formed at the wide second terminals at both ends in each row. It is formed between two terminals 161A. In the example shown in the figure, for convenience of explanation, four narrow second terminals 161B are arranged on the second convex portions 112 on both sides, but the number thereof is three or less. Also, it may be 5 or more and can be set arbitrarily.

  Note that the wide second terminal 161A and the narrow second terminal 161B have the same configuration except for the width dimension, and therefore will be described as the second terminal 161 when they are described in an integrated manner.

  The second terminal 161 is a member integrally formed by punching and bending a conductive metal plate, and is connected to a held portion (not shown) and a lower end of the held portion. A tail portion 162; a second contact portion 166 connected to the upper end of the held portion; a connection portion 164 connected to the upper end of the second contact portion 166; and an inner end of the connection portion 164. A first contact portion 165. A second contact recess 166a is formed on the surface of the second contact portion 166.

  The held portion is a portion that is surrounded and held by the second housing 111 and is not shown in the drawing. The tail portion 162 is connected to the lower end of the main body portion extending in the left-right direction, that is, the width direction of the second housing 111, and extends outward from the second housing 111, thereby conducting the second substrate. The connection pads connected to the traces are connected by soldering or the like.

  The second terminal 161 is integrated with the second housing 111 by a molding method called overmolding or insert molding. That is, the second housing 111 is formed by filling an insulating material into a mold cavity in which the second terminals 161 are set in advance. Accordingly, the held portion of the second terminal 161 is buried in the second housing 111, and the surfaces of the first contact portion 165, the connection portion 164, and the second contact portion 166 are fitted to the side surfaces of the second convex portion 112 and the fitting. It is integrally attached to the second housing 111 in a state where it is exposed to the mating surface 111a.

  Further, all of the second terminals 161, that is, both the wide second terminal 161A and the narrow second terminal 161B, have a longitudinal cross-sectional shape, that is, from the free end of the tail portion 162, the first contact portion 165 The cross-sectional shape along the axis extending to the tip 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.

  In addition, second projecting end portions 122 as fitting guide portions are disposed at both ends in the longitudinal direction of the second housing 111, respectively. 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 each second convex portion 112, and its upper surface is substantially rectangular. It has a shape. And the said 2nd protrusion end part 122 is inserted in the fitting 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.

  Further, a second reinforcing metal fitting 151 as a reinforcing metal fitting is attached to the second protruding end portion 122. Similar to the second terminal 161, the second reinforcing metal fitting 151 is integrated with the second housing 111 by a molding method called overmolding or insert molding. That is, the 2nd housing 111 is shape | molded by filling the insulating material in the cavity of the metal mold | die which set the 2nd reinforcement metal fitting 151 inside beforehand with the 2nd terminal 161 inside.

  In FIG. 5, the second reinforcing metal member 151 and the second housing 111 are members formed separately, and are drawn as if they are combined with each other, but such drawing is convenient. And not necessarily accurate. As described above, the second housing 111 in the present embodiment is at least partially covered with an insulating material by a molding method called overmolding or insert molding. It is obtained by molding so as to be integrated.

  The second reinforcing metal fitting 151 in the present embodiment is a member integrally formed by punching and bending a metal plate and extending in the width direction of the second housing 111. A second main body portion 152 as a portion, a central cover portion 157 connected to the upper end of the second main body portion 152, and an engaging protrusion that extends outward from the left and right ends of the second main body portion 152. 158 and a fixing portion 156 extending from the lower end of the connecting portion between the engaging protrusion 158 and the second main body 152.

  The second main body 152 is exposed on the inner wall surface of the end wall 122 a of the second protruding end 122. The central cover portion 157 includes an upper wall portion 157a that covers the upper surface of the end wall portion 122a, and an outer wall that extends downward from the outer end of the upper wall portion 157a and is exposed to the outer wall surface of the end wall portion 122a. And a side wall covering portion 157c that extends downward from the left and right ends of the upper wall portion 157a and is exposed to the outer wall surface of the side wall portion 122b of the second protruding end portion 122. Further, the fixing portion 156 is bent so as to be substantially L-shaped in a side view, and the tip portion is parallel to the fitting surface 111 a of the second housing 111. The tip portion branches into a first fixing portion 156a extending in the direction of the outer wall surface of the end wall portion 122a and a second fixing portion 156b extending in the direction of the outer wall surface of the side wall portion 122b. ing. The first fixing part 156a and the second fixing part 156b are connected and fixed to the surface of the second substrate by means such as soldering.

  The engaging protrusion 158 has at least a tip 158a protruding outward from the outer wall surface of the side wall 122b. Then, at least a part of the outer surface of the engaging protrusion 158 excluding the portion protruding outward from the outer wall surface of the side wall portion 122b is covered with the resin forming the side wall portion 122b. More specifically, at least a part of the outer surface of the engaging protrusion 158 on the side of the fitting surface 111a is covered with an insulating material that forms the side wall 122b. The outer wall surface of the side wall portion 122b is formed with a recessed portion 122c that is recessed inward from the periphery of the portion at least part of the periphery of the engaging projection portion 158. As a result, even if the insulating material protrudes around the engaging protrusion 158, that is, a burr occurs, it is possible to ensure the amount of protrusion from the outer wall surface of the side wall 122b to the tip 158a.

  Accordingly, when the fitting of the first connector 1 and the second connector 101 that are fitted to each other is released, the fitting is started from the engaging recess 55c of the first reinforcing bracket 51 with which the tip portion 158a is engaged. Even if a force directed in the direction of the surface 111a is received, a part of the side wall portion 122b supports this force, so that the engagement protrusion 158 is not deformed in the direction of the fitting surface 111a.

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

  FIG. 7 is a perspective view showing the positional relationship between the first connector and the second connector in the connector fitting process according to the embodiment of the present invention, and FIG. 8 is the completion of the connector fitting process according to the embodiment of the present invention. FIG. 9 is a two-side view showing a state in which the connector fitting process in the embodiment of the present invention has been completed. 8A is a view from the second connector side, FIG. 8B is a view from the first connector side, FIG. 9A is a side view, and FIG. It is AA arrow sectional drawing in a).

  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 fixed portion 56a and the second fixed portion 56b are surface-mounted on the first substrate by being connected and fixed to the reinforcing connection pads 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 connected by soldering or the like to the connection pad connected to the conductive trace of the second substrate (not shown) of the tail 162 of the second terminal 161, and the first connector of the second reinforcing bracket 151. It is assumed that the fixing portion 156a and the second fixing portion 156b are surface-mounted on the second substrate by being connected and fixed to the reinforcing connection pads of the second substrate by soldering or the like. 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 total four wide second terminals 161 </ b> A included in the second connector 101.

  First, as shown in FIG. 7, the operator sets 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 to face each other. The position of the second convex portion 112 of the second connector 101 matches the position of the corresponding concave groove portion 12 a of the first connector 1, and the position of the second protruding end portion 122 of the second connector 101 corresponds to the first connector 1. When it matches the position of the fitting recess 22, the alignment of 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 fitting recessed portion 22 of the first connector 1. Thus, as shown in FIGS. 8 and 9, when the fitting of the first connector 1 and the second connector 101 is completed, the first terminal 61 and the second terminal 161 are brought into conduction.

  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 of the first terminal 61 is connected to the first contact portion 65. The first contact portion 165 of the second terminal 161 contacts, and the second contact portion 66 of the first terminal 61 contacts the second contact portion 166 of the second terminal 161. 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.

  And the 1st contact part 65 and the 2nd contact part 66 hold | grip the 2nd terminal 161 from both sides by the function as a spring part of the 1st terminal 61. FIG. 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.

  By the way, since the first connector 1 and the second connector 101 are respectively mounted on the first board and the second board having a large area, the operator can fit the fitting surface 11 a of the first connector 1 and the second connector 101. The surface 111a cannot be visually observed, and the fitting operation is performed by groping. Then, since it is groping, accurate alignment cannot be performed, and the position of the 1st connector 1 and the position of the 2nd connector 101 may shift. For example, the second connector 101 is displaced with respect to the first connector 1, and the fitting surface 111a of the second connector 101 is inclined with respect to the fitting surface 11a of the first connector 1. May be.

  In such a state, when the operator moves the first connector 1 and / or the second connector 101 in the fitting direction, either one of the first projecting end portions 21 of the first connector 1 is connected to the second connector 101. One of the second projecting end portions 122 comes into contact with the first projecting end portion 21 and the first projecting end portion 21 is pushed away from the second projecting end portion 122 in the fitting direction, that is, from the top to the bottom in FIG. You will be under pressure.

  However, in the present embodiment, the first reinforcing fitting 51 is attached to the first protruding end portion 21, and the first protruding end portion 21 is formed by the central guide portion 57 and the side guide portion 55 of the first reinforcing fitting 51. Since it is covered, even if it receives a large pressing force from the second protruding end 122, the pressing force is applied to the first substrate via the first fixing portion 56a and the second fixing portion 56b of the first reinforcing bracket 51. Since it is transmitted, it is hardly transmitted to the first projecting end portion 21. Therefore, the first protruding end portion 21 is not damaged or broken.

  In addition, a second reinforcing metal fitting 151 is attached to the second protruding end part 122, and the second protruding end part 122 is covered with the center cover part 157 and the side wall cover part 157c of the second reinforcing metal part 151. Even if a large pressing force is received from the projecting end portion 21, the pressing force is transmitted to the second substrate via the first fixing portion 156a and the second fixing portion 156b of the second reinforcing bracket 151. Little is transmitted to the protruding end 122. Therefore, the second protruding end 122 is not damaged or broken.

  When the fitting between the first connector 1 and the second connector 101 is completed, the first terminal 61 and the second terminal 161 are brought into conduction, and the first reinforcing bracket 51 provided in the first connector 1 and the first The 2nd reinforcement metal fitting 151 with which 2 connector 101 is provided will be in the state mutually engaged. Thereby, the 1st connector 1 and the 2nd connector 101 are locked, and a fitting state is maintained.

  Specifically, as shown in FIG. 9 (b), the second reinforcement fitting 151 is inserted inside the first reinforcement fitting 51, and formed on the left and right side guide portions 55 of the first reinforcement fitting 51. The front end portions 158a of the left and right engaging protrusions 158 of the second reinforcing metal fitting 151 enter and engage with the engaging recess 55c. In the initial state, the distance between the inner side surfaces of the inner wall portion 55b in the left and right side guide portions 55 is set to be shorter than the distance between the distal end portions 158a in the left and right engaging projections 158. Therefore, when the second reinforcement fitting 151 is inserted inside the first reinforcement fitting 51, the distance between the inner side surfaces of the inner wall portion 55 b in the left and right side guide portions 55 is determined by the left and right engagement protrusions 158. 9B, as shown in FIG. 9B, when the distal ends 158a of the left and right engaging projections 158 enter the engaging recess 55c, the initial reinforcing metal 51 has a spring property so that the initial state Return to distance. As a result, the engagement state between the engagement recess 55c of the side guide portion 55 and the distal end portion 158a of the engagement protrusion 158 is securely held, and as a result, the first connector 1 and the second connector 101 are reliably connected. Locked to.

  Here, since the engagement recess 55c located at the front end of the connection arm portion 53 has a long spring length, the amount of elastic displacement is extremely large. As a result, vibration and impact generated when the electronic device or the like on which the first substrate and the second substrate are mounted fall or receive external force is transmitted, and the second reinforcing bracket 51 is transmitted to the first reinforcing bracket 51. Even if 151 is relatively displaced, the engaging recess 55c can keep the engaged state following the displacement of the tip 158a of the engaging protrusion 158, so the first reinforcing bracket 51 And the second reinforcing metal fitting 151 are securely held, and the lock between the first connector 1 and the second connector 101 is not released.

  Further, in order to release the fitting between the first connector 1 and the second connector 101, the first connector 1 and / or the second connector 101 is moved away from the mating side, that is, in the anti-fitting direction. A force in the direction of pulling out from the second housing 111 (downward force in FIG. 9B) acts on the engaging protrusion 158 in which the tip 158a is engaged with the engaging recess 55c. However, at least a part of the engaging protrusion 158 including the tip 158a protrudes outward from the outer wall surface of the side wall 122b. The periphery of the engaging protrusion 158 is covered with an insulating material that forms the side wall 122b. More specifically, at least a part of the periphery of the engaging protrusion 158 on the fitting surface 111a side is covered with an insulating material that forms the side wall 122b. Therefore, the displacement of the engaging protrusion 158 in the direction of being extracted from the second housing 111 is prevented, and the engaging protrusion 158 is prevented from rolling up.

  As described above, in the present embodiment, the second connector 101 includes the second housing 111, the second terminal 161 loaded in the second housing 111, and the second reinforcing metal fitting 151 loaded in the second housing 111. Is provided. The second housing 111 is fitted with the first protruding end portions 21 formed at both ends in the longitudinal direction of the first housing 11 of the first connector 1, which are second protruding end portions 122 formed at both ends in the longitudinal direction. The second reinforcing metal fitting 151 includes the engaging protrusions 158 that engage the engaging recesses 55c and the front end parts 158a of the first reinforcing metal fitting 51 loaded in the first housing 11. A part of the engaging protrusion 158 including at least the tip 158 a protrudes from the wall surface of the second protruding end 122.

  Thereby, the second reinforcing metal fitting 151 is not deformed during the fitting operation or the fitting releasing operation, and the reliability can be improved.

  In addition, at least a part of the second housing 111 on the side of the fitting surface 111 a around the engaging protrusion 158 is covered with an insulating material that forms the second protruding end 122. Therefore, the displacement of the engaging protrusion 158 in the direction of being extracted from the second housing 111 is prevented, and the engaging protrusion 158 is prevented from rolling up.

  Further, a recessed portion 122 c is formed at least at a part of the wall surface of the second projecting end portion 122 around the engaging projection portion 158. Thereby, even if the insulating material protrudes around the engaging protrusion 158, the amount of protrusion from the outer wall surface of the side wall 122b to the tip 158a can be secured.

  Further, the second housing 111 is formed so as to be integrated by covering at least a part of the periphery of the second reinforcing metal fitting 151 with an insulating material. Thereby, the 2nd housing 111 and the 2nd reinforcement metal fitting 151 are couple | bonded firmly.

  Further, the wall surface of the second projecting end portion 122 is an outer wall surface of the side wall portion 122b of the second projecting end portion 122, and the first projecting end portion 21 includes the fitting recess 22 into which the second projecting end portion 122 is inserted. The first reinforcing metal fitting 51 includes an inner wall 55b that covers the inner surface of the fitting recess 22, and the engagement recess 55c is a recess formed in the inner wall 55b. Therefore, the engagement state between the first reinforcing bracket 51 and the second reinforcing bracket 151 is reliably maintained, and the lock between the first connector 1 and the second connector 101 is not released.

  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, 122b Side wall part 15a 1st terminal accommodation inner cavity 15A, 15B 1st terminal accommodation Cavity 15b First terminal accommodating outer cavity 21 First protruding end 21a Upper surface 21b, 122a End wall 21c Side wall extension 21f, 55b Inner wall 21g Center 21h Corner 21k, 55d, 157b Outer wall 22 Fitting recess 25 Inside End convex part 25a Opposite plane 26 First metal fitting holding concave part 26e First fixing part accommodating opening 26f First arm part accommodating opening 26g Second fixing part accommodating opening 51, 851 First reinforcing metal fitting 52 First body part 53 Connection Arm part 55 Side guide part 55a, 157a Upper wall part 55c Engaging recess 56a, 156a First fixing part 56b 156b Second fixed portion 57 Central guide portion 57a Upper cover portion 57b Inner cover portion 57c Convex portion receiving openings 61A and 61B First terminals 62 and 162 Tail portion 64 Lower connection portions 65 and 165 First contact portions 66 and 166 Second Contact portion 67 Upper connection portion 101 Second connector 111 Second housing 112 Second convex portion 122 Second projecting end portion 122c Recessed portion 151, 951 Second reinforcing bracket 152 Second main body portion 156 Fixing portion 157 Center cover portion 157c Side wall cover Portion 158 Engaging projection 158a Tip portion 161A, 161B Second terminal 164 Connection portion 166a Second contact recess 852, 952 Body portion 854, 952a Housing locking projection 856, 956 Substrate connection portion 858, 958 Side engagement Piece 858a, 958a Side engagement convex part

Claims (5)

(A) A connector comprising a first housing, a first terminal loaded in the first housing, and a first reinforcing bracket loaded in the first housing,
(B) The first housing has first projecting end portions formed at both ends in the longitudinal direction, and is fitted with second projecting end portions formed at both ends in the longitudinal direction of the second housing of the second connector. Including one protruding end,
(C) The first projecting end portion includes an end wall portion extending in the width direction of the first housing, and a side wall extension connected to both ends of the end wall portion and extending in the longitudinal direction of the first housing. Including
(D) The first reinforcing metal fitting is connected to the first main body extending in the width direction of the first housing, the connecting arm connected to both ends of the first main body, and the connecting arm. A side guide portion attached to the first projecting end portion,
(E) The side guide part includes an upper wall part located on the side wall extension part and an inner wall part located on the inner side of the side wall extension part. The connector according to claim 1, wherein the first reinforcing metal fitting further includes a fixing portion extending from a lower end of the inner wall portion. The first reinforcing metal fitting further includes an engaging concave part formed in the inner wall part, the engaging concave part being engageable with an engaging projection part included in the second reinforcing metal part loaded in the second housing. The connector according to claim 1 or 2. The first reinforcing bracket is connected to the first main body portion and is formed in a central guide portion that covers a part of the end wall portion, and in the side guide portion, and an outer wall portion that is located outside the side wall extension portion. The connector according to claim 1, further comprising: The connector pair which has the connector of any one of Claims 1-4, and the 2nd connector fitted to this connector.

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