JP5523776B2 - Electrical connectors and connectors - Google Patents

Description

  The present invention relates to a connector, and more particularly to an electrical connector for electrically connecting a board and a board.

  2. Description of the Related Art Conventionally, an electrical connector such as a board-to-board connector that electrically connects a pair of parallel boards is known. The board-to-board connector includes a pair of connectors that are respectively attached to mutually facing surfaces of the pair of boards, and each connector is electrically connected to each board. And one board | substrate and the other board | substrate are electrically connected through the electrical connection between connectors. The electrical connection between the board and the connector and the electrical connection between the connectors are performed by a plurality of contacts provided in each connector. The electrical connection between the board and the connector is performed by soldering the contacts to the board, and the electrical connection between the connectors is performed by elastic contact between the contacts soldered to the respective boards.

  By soldering the above contacts to the board, the board and the connector are also mechanically connected. In order to reinforce the mechanical connection between the board and the connector, a reinforcing member may be further provided on the connector. The reinforcing member is also attached to the substrate by soldering, like the contact.

  In order to attach the reinforcing member to the connector, the reinforcing member is attached from the fitting surface side with another connector, or the reinforcing member is attached from the connection surface side (mounting side) with the substrate. For example, when mounting from the fitting surface side, the reinforcing member is soldered to the substrate with the connector sandwiched between the reinforcing member and the substrate. Therefore, as long as the reinforcing member is connected to the substrate, the connection between the connector and the substrate can be strengthened, and the connection strength between the reinforcing member and the connector is not a problem. On the other hand, when the reinforcing member is attached from the connection surface side (mounting side) between the connector and the board, the reinforcing member is positioned between the connector and the board. Therefore, in order to reinforce the connection between the connector and the board, the reinforcing member positioned between them needs to be soldered to the board and firmly attached to the connector.

  In order to firmly attach the reinforcing member to the connector, the following method has been proposed. An engaging part having a wedge shape made of unevenness is provided in a part of the reinforcing member, an engaging hole into which the engaging part is inserted is formed in the connector, and the engaging part of the reinforcing member is inserted into the engaging hole of the connector To do. At this time, since the wedge shape of the engaging portion bites into the wall surface defining the engaging hole of the connector, the reinforcing member is firmly attached to the connector by the anchor effect. Such a mounting method of the reinforcing member is referred to as “press-fit” in the present specification.

  On the other hand, it has been proposed that a reinforcing member, which is a member that reinforces the connection between the board and the connector, has a function of further strengthening the coupling between the connectors. In order to realize this, in one set of connectors, a certain locking structure is provided between a reinforcing member installed in one connector and a reinforcing member installed in the other connector.

  A conventional example of a reinforcing member press-fitted into the connector and having a lock structure will be described below. FIG. 12 shows a plug reinforcing member 850 of the board-to-board connector disclosed in Patent Document 1. The board-to-board connector disclosed in Patent Document 1 includes a plug connector and a receptacle connector connected to each board. The plug reinforcing member 850 is attached to the plug connector from the connection surface side (mounting side) between the plug connector and the board.

  The plug reinforcing member 850 has a base portion 851 and a pair of side walls 852 extending from the end portion of the base portion 851 by bending substantially vertically in the same direction via a bent portion 858. The plug reinforcing member 850 forms a “peg” shape by the base portion 851 and the pair of side walls 852. A cut 853 is formed in the base 852, and an engagement portion 854 to the plug connector is defined in the base 850 by the cut 853. In addition, the base portion 851 of the plug reinforcing member 850 is provided with an insertion portion 856 that functions as a locking structure between the connectors. Further, a connection portion 855 connected to the substrate is provided on the pair of side walls 852.

  The side surface of the engaging portion 854 has a wedge shape made of irregularities, and the plug reinforcing member 850 is firmly attached to the plug connector when the engaging portion 854 is press-fitted into the engaging hole of the plug connector. On the other hand, the connecting portion 855 is soldered to the substrate. Thereby, the mechanical connection between the plug connector and the board is reinforced through the plug reinforcing member 850.

  Further, when the plug connector and the receptacle connector are fitted, the insertion portion 856 is inserted into a recess provided in the receptacle reinforcing member and functions as a lock structure. Thereby, fitting of a plug connector and a receptacle connector is also strengthened.

JP 2006-100240 A

  However, the plug reinforcing member 850 disclosed in Patent Document 1 is provided with a notch 853 in order to provide the engaging portion 854 having a wedge-shaped side surface. Since the width of the base portion 851 where the cut 853 is formed becomes narrower by the amount of the cut 853, the strength is lowered, and there is a possibility that breakage occurs in the cut 853 portion.

  The present invention has been made in view of such circumstances, and is a reinforcing member that is attached from the connection surface side (mounting side) between the connector and the board, and is firmly attached to the connector, and the reinforcing member itself. An object of the present invention is to provide an electrical connector having a reinforcing member having high strength.

According to the first aspect of the present invention, the first board to which the first connector is connected and the second board to which the second connector is connected are fitted in the first and second connectors in a predetermined direction. In the electrical connector having the first and second connectors, the first connector is embedded in the first connector from the opposite side of the fitting side with the second connector. A first reinforcing member that reinforces one connector, the first reinforcing member extending from a part of the main body in the predetermined direction and coupled to the first substrate; An engagement portion for engaging with one connector, the engagement portion being partitioned by a cut extending in the predetermined direction from the opposite side of the portion where the coupling portion of the main body is provided. The connecting portion is formed across the main body portion and the engaging portion. Is a portion of the coupling portion, the predetermined direction and bent in a direction intersecting an electrical connector, characterized in that it is soldered to the surface of the first substrate is provided.

According to a second aspect of the present invention, there is provided a connector for electrically connecting to a board and for fitting with another connector in a predetermined direction, the connector being fitted to the connector with the other connector. A reinforcing member embedded from the opposite side to reinforce the connector, the reinforcing member extending from a part of the main body in the predetermined direction and coupled to the substrate An engaging portion for engaging with the connector, wherein the engaging portion is defined by a notch extending in the predetermined direction from the opposite side of the portion where the coupling portion of the main body is provided. The coupling portion is formed across the main body portion and the engaging portion, and a part of the coupling portion is bent in a direction intersecting the predetermined direction and soldered to the surface of the substrate. A connector is provided.

  The reinforcing member of the present invention has a connecting portion that extends from a part of the main body of the reinforcing member in the fitting direction of the connector and is connected to the board. And the notch is extended and formed in the fitting direction of a connector from the opposite side of the part in which the coupling | bond part of the main body was provided. The present invention prevents the strength of the cut portion of the reinforcing member from being reduced by providing the coupling portion in the portion of the reinforcing member whose width is narrowed by the formation of the cut. Therefore, an incision can be formed without reducing the strength of the reinforcing member, and an engaging portion for press-fitting into the connector can be provided in the reinforcing member. The present invention provides an electrical connector having a reinforcing member that can be firmly attached to the connector from the connection surface side (mounting side) between the connector and the substrate, and that has a strong strength.

1 is a perspective view of a board-to-board connector in a state in which a receptacle connector and a plug connector are fitted in an embodiment of the present invention, as viewed from the plug connector side. It is the perspective view of the receptacle connector in embodiment of this invention, and is the figure seen from the fitting surface side with a plug connector. It is a perspective view of the housing of the receptacle connector in the embodiment of the present invention, and is a perspective view seen from the surface side mounted on the substrate. It is the bottom view seen from the surface side mounted in the board | substrate of the receptacle connector in embodiment of this invention. It is sectional drawing in FIG. 4 line VV of the receptacle connector in embodiment of this invention. It is a perspective view of the receptacle reinforcement member in the embodiment of the present invention. It is a perspective view of a receptacle reinforcement member in an embodiment of the present invention, and is an enlarged view of a cut and an engagement part. It is the perspective view of the plug connector in embodiment of this invention, and is the figure seen from the fitting surface side with a receptacle connector. It is a perspective view of the plug reinforcement member in the embodiment of the present invention. It is a perspective view of the receptacle reinforcement member and plug reinforcement member in the embodiment of the present invention. It is a perspective view of the reinforcing member in the embodiment of the present invention. It is a perspective view of the conventional plug reinforcement member described in patent documents 1.

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

  As shown in FIG. 1, the electrical connector according to the embodiment of the present invention is a pair of board-to-board connectors 3 including a receptacle connector 1 and a plug connector 2. The board-to-board connector 3 in the present embodiment electrically connects the boards to which they are attached through the connection between the receptacle connector 1 and the plug connector 2.

[Receptacle connector]
First, the receptacle connector 1 will be described with reference to FIGS. The receptacle connector 1 is a member having a rectangular parallelepiped shape, and is mounted on the substrate 91 by soldering a receptacle contact 61 described later to the substrate 91. In the present application, as appropriate, the receptacle connectionist "mounting side" a side mounted on the substrate of the motor 1 or "lower", the side where the plug connector 2 is fitted is referred to as "mating side" or "upper". In this application, the direction in which the rectangular parallelepiped receptacle connector 1 extends (the direction indicated as “Y” in FIG. 2) is “longitudinal direction” and is orthogonal to the “longitudinal direction” in a plane parallel to the substrate 91. The direction (direction indicated as “X” in FIG. 2) is referred to as “short direction”, and the direction perpendicular to the surface of the substrate 91 (direction indicated as “Z” in FIG. 2) is referred to as “height direction”. The height direction of the receptacle connector 1 is a fitting direction with a plug connector 2 described later.

  The receptacle connector 1 mainly includes a bowl-shaped housing 11, a plurality of receptacle contacts 61 attached to the housing 11, and a pair of receptacle reinforcing members 51 attached to the housing 11 from below. The receptacle reinforcing member 51 is embedded in the housing 11 of the receptacle connector 1. The housing 11 has a predetermined thickness in the height direction and a pair of beams 12a and 12b extending in parallel with each other in the longitudinal direction, and connecting both ends of the beams 12a and 12b extending in the short direction. A pair of bridges 26 a and 26 b and a bottom plate 17. The bottom plate 17 extends below the housing 11 so as to connect the beams 12a and 12b and the bridges 26a and 26b. A raised portion 14 projects from the center portion of the bottom plate 17 and extends in the longitudinal direction.

  In the center of the housing 11, the space 13 is partitioned by the beams 12 a and 12 b, the bridges 26 a and 26 b, and the bottom plate 17, and the raised portion 14 is located inside the space 13. A part of the plug connector 2 described later is inserted into the space 13.

  As shown in FIGS. 4 and 5, grooves 23 a and 23 b into which a part of the receptacle reinforcing member 51 is inserted and a pair of holes 24 a and 24 b are formed on the lower surfaces 26 Ba and 26 Bb of the bridges 26 a and 26 b of the receptacle connector 1. Is done. As will be described later, the engaging portion 56 of the receptacle reinforcing member 51 is press-fitted into the holes 24a and 24b. The bottom plate 17 is formed with holes 19a and 19b into which a part of the receptacle reinforcing member 51 is inserted.

  The receptacle reinforcing member 51 will be described with reference to FIGS. The receptacle reinforcing member 51 is a member formed by punching and bending a conductive metal plate, and has a main body 52 including a pair of side walls 53 and a connecting portion 58 for connecting them. The connecting portion 58 is a plate-like member extending in one direction, and the side wall 53 extends from the both ends of the connecting portion 58 in the same direction by bending substantially vertically. The receptacle reinforcing member 51 forms a “peg” shape by the connecting portion 58 and the pair of side walls 53. In the present embodiment, the receptacle reinforcing member 51 is described using a conductive metal selected as an optimum material for being firmly attached, but any material may be used.

  An engaging portion 56 is provided at the end of each side wall 53, and a cut 57 is formed between the side wall 53 and the engaging portion 56 in a direction orthogonal to the direction in which the side wall 53 extends. As shown in FIG. 7, the engaging portion 56 is partitioned from the side wall 53 by a notch 57. FIG. 7 shows the orientation (X, Y, Z) based on the arrangement when the receptacle reinforcing member 51 is accommodated in the receptacle connector 1. That is, the lower side of the reinforcing member 51 in FIG. 7 is the side mounted on the substrate. The cut 57 extends from the upper end of the side wall 53 of the reinforcing member 51, but does not reach the lower end. The extending direction of the cuts 57 is the height direction of the receptacle connector 1 and is also the fitting direction of the receptacle connector 1 and a plug connector 2 described later. Also, the portion near the tip of the side wall 53 extends downward to provide a soldering tab 55. Furthermore, the end portion of the soldering tab 55 extends outwardly from the receptacle reinforcing member 51 in the shape of a “peg” and is bent at a substantially right angle.

  As shown in FIG. 7, the notch 57 exists in a range where the soldering tab 55 of the side wall 53 is provided in the direction (Y direction) in which the side wall 53 extends. That is, the soldering tab 55 is connected to both the side wall 53 and the engaging portion 56 defined from the side wall 53 by forming the notch 57 in the side wall 53 on the lower side of the receptacle reinforcing member 51.

  Both side portions of the engaging portion 56 are processed into a wedge shape, and when the receptacle reinforcing member 51 is attached to the receptacle connector 1, it functions as a bite anchor in the housing 11 of the receptacle connector 1. In this way, the engaging portion 56 that is formed with the notch 57 of the side wall 53 and is partitioned from the side wall 53 has side portions on both sides, so that the wedge-like processing is applied to both side portions and the one side portion is formed. In addition, the receptacle connector 1 can be firmly attached and fixed to the housing 11, and the receptacle reinforcing member 51 can be prevented from coming off from the receptacle connector 1. The soldering tab 55 is soldered and fixed to the board 91 to strengthen the connection of the receptacle connector 1 to the board 91.

  Further, an engagement piece 54 is provided at the approximate center of the connecting portion 58. The engagement piece 54 protrudes and extends in a direction perpendicular to the longitudinal direction of the connecting portion 58 (upward in FIG. 6), and has an inverted U-shape toward the inside of the “peg” shaped receptacle reinforcing member 51. It is curved. The engagement piece 54 works as an elastic body by its inverted U-shaped structure. As will be described later, when the receptacle connector 1 and the plug connector 2 are fitted together, an engagement protrusion 154 of a plug reinforcing member 151 described later engages with a tip 54 a of the engagement piece 54.

  The mounting of the receptacle reinforcing member 51 to the receptacle connector 1 will be described with reference to FIGS. The main body 52 of the receptacle reinforcing member 51 is inserted into the grooves 23a and 23b provided on the lower surfaces 26Ba and 26Bb of the bridge of the receptacle connector 1, and the engaging portions 56 are inserted into the pair of holes 24a and 24b and pressed from below. . As a result, the engaging portion 56 is press-fitted into the holes 24a and 24b, and the receptacle reinforcing member 51 is attached to the receptacle connector 1. The engagement piece 54 provided in the main body 52 is exposed in the space 13 of the receptacle connector 1 through the holes 19 a and 19 b provided in the bottom plate 17.

  As described above, the receptacle reinforcing member 51 of this embodiment is a type of reinforcing member that is attached from the connection surface side (mounting side) between the connector and the board, and the side surface of the engagement portion 56 is press-fitted into the holes 24a and 24b. By doing so, it is firmly attached to the receptacle connector 1.

When the receptacle reinforcing member 51 is instrumentation wearing the receptors click connector 1, the engaging piece 54, the mating side of the receptors click connector 1 is bent in an inverted U-shape toward the central direction of the receptacle connector 1. The engagement piece 54 can be elastically deformed by its inverted U-shaped structure. When a force is applied to the tip 54a of the engagement piece in the Y direction toward the bridges 26a and 26b, the engagement piece 54 is elastically deformed, and the tip 54a of the engagement piece moves in the direction in which the force is applied. Since this deformation is elastic, an urging force is applied to the tip 54a to return to the original state, and the tip 54a of the engagement piece returns to the original position by releasing the force. Due to the elastic deformation of the engagement piece 54, a lock function in the board-to-board connector 3 described later becomes possible.

As described above, the notch 57 is formed in the side wall 53 of the receptacle reinforcing member 51 from the upper end to the lower end. When a cut is formed in the side wall 53, the width in the Z direction of the side wall 53 becomes narrower as shown by d1 in FIG. . However, in this embodiment, the notch 57 is provided so that the soldering tab 55 straddles the side wall 53 and the engaging portion 56 in the direction in which the side wall 53 extends (Y direction). Therefore, the width in the Z direction of the side wall 53 of the portion provided with the notch 57 is d1 + d2 by adding the length d2 of the extending portion in the Z direction of the soldering tab 55 to d1. Thereby, the strength reduction of the notch 57 portion of the receptacle reinforcing member 51 is prevented. As described above, in this embodiment, the notch 5 is formed without reducing the strength of the receptacle reinforcing member 51.
7 can be formed in the receptacle reinforcing member 51 so as to be press-fitted into the receptacle connector 1. Further, in the present embodiment, the soldering tab 55 is bent and extended substantially at right angles to the outside of the “peg” shaped receptacle reinforcing member 51. Thus, it is difficult to deform at a portion bent at a right angle. From the above, the width of the Z direction of the lower portion of notch 57 is formed in the receptacle reinforcing member 51 is d1 + d2 and breadth have particularly added, as the soldering tabs 55 straddling the side walls 53 and the engaging portion 56, and Since it is provided to be bent, the mechanical strength of this portion can be further increased.

  As a method for press-fitting the receptacle reinforcing member 51 into the receptacle connector 1, for example, it may be possible to press-fit the entire side wall 53 into the engagement hole of the receptacle connector without forming the notch 57. However, in this case, a wedge shape is provided on the end surface of the side wall 53, but a wedge shape cannot be provided because the opposite side of the end surface is a bent portion. The end surface of the side wall 53 bites into the wall surface that defines the engagement hole and exhibits an anchor effect, but the bent portion comes into contact with the wall surface that defines the engagement hole only by frictional force. Therefore, the receptacle reinforcing member 51 cannot be firmly attached to the receptacle connector 1.

  Furthermore, when the side wall 53 is pressed into the engagement hole as an engagement portion, a problem of dimensional accuracy between the engagement hole and the engagement portion also occurs. Although the size of the engaging portion is smaller than the engaging hole, in order for the engaging portion to be press-fitted with sufficient strength into the engaging hole, the difference in size needs to be about 0.02 to 0.03 mm. There is. When the engaging portion is produced by punching a metal plate, the size of the engaging portion can be controlled with this accuracy. However, when the side wall 53 is regarded as an engaging part, the bent part is formed by bending a metal plate, and therefore the dimension of the side wall 53 cannot be controlled with an accuracy of 0.02 to 0.03 mm. Therefore, the side wall 53 is too large or too small with respect to the engagement hole, and the reinforcing member cannot be attached to the connector with sufficient strength.

  Therefore, in order to press-fit the reinforcing member having the bent portion into the connector, it is an effective means to form the engaging portion by forming a cut in the reinforcing member.

  In this embodiment, the notch 57 is formed in the side wall 53, and the engaging part 56 is formed. Since the engaging portion 56 can be formed in a wedge shape on both side surfaces, both side surfaces bite into the wall surfaces defining the holes 24a and 24b and exert a strong anchor effect. Moreover, the engaging part 56 of this embodiment can be produced by punching a metal plate. Therefore, the size of the engaging portion 56 can be controlled with high accuracy to about 0.02 to 0.03 mm, which is optimal for press-fitting, with respect to the difference in size from the holes 24a and 24b into which the engaging portion 56 is press-fitted. As described above, the receptacle reinforcing member 51 of the present embodiment is firmly attached to the connector with sufficient strength as a reinforcing member attached from the connection surface side (mounting side) between the connector and the substrate, and the strength of the reinforcing member itself is also high. It is a strong reinforcing member.

  The receptacle reinforcing member 51 of the present embodiment has an engagement piece 54 that performs a locking function. Since the receptacle reinforcing member 51 is provided with the engaging piece 54 at the center thereof, the shape thereof is a “peg” shape having two bent portions with the engaging piece 54 interposed therebetween. Since the reinforcing member in the shape of the “peg” has a bent portion, as described above, it is difficult to form an engaging portion that is press-fitted into the connector unless a notch is formed. Therefore, the present invention for preventing the strength reduction of the cut portion of the reinforcing member is effective in the reinforcing member 51 having the “peg” shape of the present embodiment.

[Plug connector]
The plug connector 2 will be described with reference to FIG. The plug connector 2 is a member having a rectangular parallelepiped shape, and is mounted on the substrate 191 by soldering a plug contact 161 described later to the substrate 191. In the present application, the side of the plug connector 2 that is mounted on the substrate 191 is appropriately referred to as “mounting side” or “lower side”, and the side on which the receptacle connector 1 is fitted is referred to as “fitting side” or “upper side”. In this application, the direction in which the rectangular parallelepiped plug connector 2 extends (the direction indicated as “Y” in FIG. 8) is “longitudinal direction”, and is orthogonal to the “longitudinal direction” in a plane parallel to the substrate 191. The direction (direction indicated as “X” in FIG. 8) is referred to as “short direction”, and the direction perpendicular to the surface of the substrate 191 (direction indicated as “Z” in FIG. 8) is referred to as “height direction”.

  The plug connector 2 includes a bowl-shaped housing 111, a plurality of plug contacts 161 attached to the housing 111, and a pair of plug reinforcing members 151 attached to the housing 111 from above. The housing 111 has a predetermined thickness in the height direction and connects a pair of beams 112a and 112b extending in parallel with each other in the longitudinal direction and the ends of the beams 112a and 112b extending in the short direction. A pair of bridges 126a and 126b and a bottom plate 117. The bottom plate 117 extends below the housing 111 so as to connect the beams 112a and 112b and the bridges 126a and 126b. In the center of the housing 111, a space 113 is defined by beams 112a and 112b, bridges 126a and 126b, and a bottom plate 117. A part of the above-described receptacle connector 1 is inserted into the space 113.

A plug reinforcing member 151 is attached to the bridges 126 a and 126 b of the plug connector 2. Bridge top 126Ua, the 126Ub, recesses 123a, 123b are formed, the bridge of the pair of side surfaces 126Sa, each of the 126Sb side grooves 124a, 124b is Ru formed to extend in the height direction. The recess 123a and the pair of side surface grooves 124a communicate with each other to form one space, and the plug reinforcing member 151 is accommodated in this space. Similarly, the concave portion 123b and the pair of side surface grooves 124b communicate with each other to form one space, and the plug reinforcing member 151 is accommodated in this space.

  The plug reinforcing member 151 will be described with reference to FIG. The plug reinforcing member 151 is a member formed by punching and bending a conductive metal plate. Legs 155 extend from opposite sides of the flat main body 152. The legs 155 are bent in a direction perpendicular to the surface of the main body 152, and their tips are soldered to the board 191 when the plug connector 2 is attached to the board 191. In the vicinity of the tip of the leg 155, an unevenness functioning as a retaining for the plug connector 2 is formed. One side of the main body 152 in the direction orthogonal to the direction in which the legs 155 extend functions as the engagement protrusion 154. In the present embodiment, the plug reinforcing member 151 is described using a conductive metal selected as an optimum material for firm attachment, but any material may be used.

  The mounting of the plug reinforcing member 151 to the plug connector 2 will be described with reference to FIG. The main body 152 of the plug reinforcing member is fitted into the recesses 123a and 123b on the upper surface of the bridge of the plug connector 2, and the leg 155 of the plug reinforcing member is fitted into the side grooves 124a and 124b of the bridge, respectively, and pressed from above. As a result, the plug reinforcing member 151 is attached to the plug connector 2, and the leg 155 contacts the substrate 191 while being accommodated in the side grooves 124 a and 125 a. The tip of the leg 155 is mechanically connected to the substrate 191 by being soldered to the substrate 191. As a result, the plug reinforcing member 151 strengthens the connection between the plug connector 2 and the board 191.

The housings 11 and 111 in the receptacle connector 1 and the plug connector 2 of the present embodiment described above can be integrally formed of an insulating material such as a synthetic resin. In the present embodiment, examples of dimensions of the manufactured receptacle connector 1 and plug connector 2 are shown below. The housing 11 of the receptacle connector 1 has a length (X direction) of about 3.0 [mm], a width (Y direction) of about 7.3 [mm], and a thickness (Z direction) of about 0.7 [mm]. Yes, the raised portion 14 has a width (X direction) of about 0.8 mm. The housing 111 of the plug connector 2 has a length (X direction) of about 1.8 [mm], a width (Y direction) of about 5.7 [mm], and a thickness (Z direction) of about 0.6 [mm]. The space 113 has a width (X direction) of about 0.9 [mm]. A plurality of receptacle contacts 61 provided on the receptacle connector 1 were formed on the beams 12a and 12b at a pitch of about 0.4 [mm]. The plug contacts 161 in the plug connector 2 are provided on the beams 112a and 112b so as to correspond to the same number at the same pitch as the receptacle connector 1. The dimensions of the housing and the pitch and number of contacts can be changed as appropriate.

[Engagement of reinforcement members]
When the receptacle connector 1 and the plug connector 2 are fitted together, the receptacle reinforcing member 51 and the plug reinforcing member 151 are engaged to strengthen the fitting between the connectors. First, the fitting between the receptacle connector 1 and the plug connector 2 will be described. For fitting, the fitting surface of the receptacle connector 1 (upper side in FIG. 2) and the fitting surface of the plug connector 2 (upper side in FIG. 8) are aligned, and the plug connector 2 is formed of beams 112a and 112b and bridges 126a and 126b. The convex shape thus formed is inserted into the concave shape formed by the space 13 in the receptacle connector 1. At this time, the plurality of receptacle contacts 61 provided in the receptacle connector 1 and the plurality of plug contacts 161 provided in the plug connector 2 are respectively elastically contacted and electrically connected.

When the receptacle connector 1 and the plug connector 2 are fitted together, the receptacle reinforcing member 51 and the plug reinforcing member 151 are engaged to strengthen the fitting between the connectors. 10, the engaging projection 154 of the plug reinforcing member 151, by engaging the engaging piece 54 of the receptacle reinforcing member 51, Li receptacle reinforcing member 51 and the plug reinforcing member 151 is engaged.

The engagement of the engagement protrusion 154 with the engagement piece 54 proceeds as follows. When the mating side of the plug connector 2 and the mating side of the receptacle connector 1 are aligned and the plug connector 2 is pushed into the receptacle connector 1, first, the engagement protrusions 154 of the plug reinforcing member 151 and the engaging pieces of the receptacle reinforcing member 54 abuts. Further, when the plug connector 2 is pushed into the receptacle connector 1, the engagement protrusion 154 of the plug reinforcing member slides from the mating side of the receptacle connector 1 while sliding on the reverse U-shaped surface of the engaging piece 54 of the receptacle reinforcing member. Proceed to the implementation side. At this time, the engaging projection 154, the engagement piece 54, force is applied to the Y direction towards the bridge 26a, 2 6 b, elastically deformed. Further, when the plug connector 2 is pushed into the receptacle connector 1, the engaging protrusion 154 reaches the tip 54a of the engaging piece. At this time, the tip 54a is the direction of the force engagement piece 154 is added, i.e., moves in the Y direction towards the bridge 26a, 2 6 b. Further, when the plug connector 2 is pushed into the receptacle connector 1, the engagement protrusion 154 moves beyond the engagement piece tip 54 a to the mounting side of the receptacle connector 1, and the engagement protrusion 154 is added to the engagement piece 54. Power is released. The elastically deformed engaging piece 54 is restored to its original shape, and the tip 54a of the engaging piece moves in the Y direction away from the bridges 26a and 26b. As a result, the end 54a of the engagement piece is positioned on the engagement side of the engagement protrusion 154, and the engagement protrusion 154 and the engagement piece 54 are engaged. Thus engagement of the plug reinforcing member 151 and the receptacle reinforcing member 5 1 is completed.

  In the present embodiment, the receptacle reinforcing member 51 having the engaging piece 54 having the lock structure has been described. However, the reinforcing member may not have the lock structure. For example, there is a case where the shape of the reinforcing member has the shape of a “peg” even if it does not have a lock structure. Two reinforcing members in the form of “pegs” are usually provided at both ends of the connector. On the other hand, four reinforcing members that are not in the shape of “pegs” are usually provided at four corners of the connector. Reinforcing members in the shape of a “peg” have advantages such as fewer parts and increased strength of the reinforcing member compared to reinforcing members that do not have a “peg” shape. Even in such a case, a reinforcing member in the shape of a “peg” may be used. Since the reinforcing member in the shape of the “peg” is provided with an engaging portion that is press-fitted into the connector, it is necessary to form a cut in the reinforcing member, and thus the present invention is effective.

  In the present embodiment, the “peg” -shaped receptacle reinforcing member 51 having two bent portions has been described. However, the reinforcing member may not have the “peg” shape. For example, it is a case where it does not have a bending part like the reinforcement member 251 shown in FIG. In this case, it is also conceivable to form wedges on both side surfaces 251a and 251b of the reinforcing member 251 and press-fit into the engaging holes formed in the connector using the entire reinforcing member 251 as the engaging portion. However, when the wedge shape cannot be formed on both side surfaces of the reinforcing member, the present invention is effective because it is necessary to form the notch 257 in the reinforcing member 251 in order to provide the engaging portion 256 for press-fitting into the connector.

  In the present embodiment, the soldering tab 55 is bent and extended substantially at right angles to the outside of the receptacle reinforcing member 51 in the shape of a “peg”, but the soldering tab 55 may not be bent. . In the reinforcing member, it is only necessary that a cut is formed from one surface of the pair of opposed surfaces to the other surface, and a soldering tab is provided at a position facing the cut on the other surface. This is because if the soldering tab is formed at a position facing the notch, the mechanical strength of the reinforcing member due to the notch can be prevented from being lowered.

  In the present embodiment, the receptacle reinforcing member 51 attached to the receptacle connector 1 has the feature of the reinforcing member in the present invention. On the other hand, the plug reinforcing member 151 attached to the plug connector 2 does not have the feature of the reinforcing member in the present invention. However, the plug reinforcing member attached to the plug connector may have the feature of the reinforcing member in the present invention, or both the receptacle reinforcing member and the plug reinforcing member may have.

  The board-to-board connector of the present invention electrically connects a board and a board. The reinforcing member used in the board-to-board connector of the present invention is firmly attached to the connector from the connection surface side (mounting side) between the connector and the board, and the strength of the reinforcing member itself is also strong. Strengthen mechanical coupling. Therefore, the board-to-board connector of the present invention can be effectively used as a connector for connecting a board or the like inside a small electronic device or the like.

1 Receptacle connector (first connector)
2 Plug connector (second connector)
3 Board-to-board connector (electrical connector)

11 Housing 12a, 12b Beam 13 Space 14 Raised portion 17 Bottom plate 19a, 19b Hole 23a, 23b Groove 24a, 24b Hole 26a, 26b Bridge 26Ba, 26Bb Bottom surface of bridge

51 Receptacle Reinforcement Member 52 Main Body 53 Side Wall 54 Engagement Piece 54a Tip 55 Soldering Tab (Coupling Portion)
56 Engagement part 57 Notch 58 Connection part 61 Receptacle contact

91 substrates

111 Housing 112a, 112b Beam 113 Space 117 Bottom plate 123a, 123b Recess 124a, 124b Side groove 126a, 126b Bridge 126Ua, 126Ub Bridge upper surface 126Sa, 126Sb Bridge side surface

151 Plug reinforcement member 152 Main body 154 Engaging protrusion 155 Leg 161 Plug contact

251 Reinforcement member 252 Main body 256 Engagement part 257 Notch

191 Substrate

850 Plug reinforcing member 851 Base 852 Side wall 853 Groove 854 Engagement portion 855 Connection portion 856 Insertion portion 858 Bending portion

Claims (5)

The first board for electrically connecting the first board to which the first connector is connected and the second board to which the second connector is connected by fitting the first and second connectors in a predetermined direction. And an electrical connector having a second connector,
The first connector has a first reinforcing member embedded in the first connector from a side opposite to the fitting side with the second connector to reinforce the first connector,
The first reinforcing member is
The body,
A coupling portion extending from a part of the main body in the predetermined direction and coupled to the first substrate;
An engagement portion for engaging with the first connector, the engagement portion defined by a cut extending in the predetermined direction from the opposite side of the portion where the coupling portion of the main body is provided. equipped with a,
The coupling part is formed across the main body part and the engaging part, and a part of the coupling part is bent in a direction intersecting the predetermined direction and soldered to the surface of the first substrate. Characteristic electrical connector.   The main body has a plate-like connecting portion, and a pair of plate-like side wall portions that are bent and extended substantially vertically from both ends of the connecting portion in the same direction,
  The electrical connector according to claim 1, wherein the coupling portion extends from a part of the side wall portion, and the cut is formed in the side wall portion.   A connector for electrically connecting to a board and fitting with another connector in a predetermined direction,
  The connector has a reinforcing member that is embedded in the connector from the side opposite to the fitting side with the other connector and reinforces the connector,
  The reinforcing member is
  The body,
  A coupling portion extending from a part of the main body in the predetermined direction and coupled to the substrate;
  An engaging portion for engaging with the connector, the engaging portion being partitioned by a notch extending in the predetermined direction from the opposite side of the portion where the coupling portion of the main body is provided. ,
  The coupling part is formed across the main body part and the engagement part, and a part of the coupling part is bent in a direction intersecting the predetermined direction and soldered to the surface of the substrate. Connector.   The electrical connector according to claim 2, wherein the engaging portion is provided at an end portion of the side wall portion.   The second connector has a second reinforcing member that reinforces the second connector;
  The first reinforcing member has a lock structure in the connecting portion that engages with the second reinforcing member when the first connector and the second connector are fitted to each other. Electrical connector.

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