JP2011060478A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric connector structured to prevent oblique unmating having a high risk of unintended release of engagement between connectors. <P>SOLUTION: An electric connector electrically connects first and second connectors, the first connector includes a first engagement member having a projection, and the second connector has a second engagement member having a cut formed therein into which the projection is engaged. When the first and second connectors are electrically connected to each other, the projection is engaged with the cut such that rotation of the projection within the cut is prevented by the cut. <P>COPYRIGHT: (C)2011,JPO&INPIT

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.

  In general, an electrical connector is a part that can be inserted and removed, and a force necessary to release the fitting between the connectors, that is, a removal force is appropriately set. As disclosed in Patent Document 1, the fitting between the connectors is held by the elastic contact between the contacts. Therefore, the removal force of the electrical connector is determined by the number of contacts (number of poles), the contact force between the contacts, and the like.

JP 2000-260509 A

  In the operation of releasing the fitting between the connectors by pulling apart the boards to which the respective connectors are connected in parallel (hereinafter referred to as “parallel removal” in the present specification), the removal force of the electrical connector is the largest. Become. In this case, the fitting between the connectors is most difficult to be released. On the other hand, in the operation of releasing one of the boards while being inclined with respect to the other board and releasing the fitting between the connectors (hereinafter referred to as “obliquely-extracting” in the present specification), the removal force of the electrical connector is the highest. Get smaller. In this case, the diagonal pulling is the pulling away from the connector attached to the other board while rotating the connector attached to the one board while pulling away from the other board so that one board is peeled off from the end. The connection between the connectors is most easily released.

  The oblique extraction will be described with reference to FIG. The electrical connector 1000 includes a plug connector 800 and a receptacle connector 900. The plug connector 800 is attached to the substrate 801, and the receptacle connector 900 is attached to the substrate 901. The board 801 and the board 901 are electrically connected by fitting between these connectors. A large number of plug contacts 851a and 851b and a large number of receptacle contacts 951a and 951b are attached to the plug connector 800 and the receptacle connector 900, respectively, in two rows. When the plug connector 800 and the receptacle connector 900 are fitted together, the plug contacts 851a and 851b and the receptacle contacts 951a and 951b are respectively engaged to form a contact row composed of a plurality of engagement pairs. The engagement between the plug connector 800 and the receptacle connector 900 is maintained by the engagement of these contacts.

  When the electrical connector 1000 is moved up and down and removed in parallel, if the engagement of the contact rows is released at the same time, the engagement of the plurality of contact rows is released at the same time, so that the removal force increases. On the other hand, when the electrical connector 1000 is pulled out obliquely, as shown in FIG. 12, first, one contact row is disengaged, and then the other contact row is disengaged. Therefore, the fitting between the connectors can be released by a force for releasing the engagement of one row of contact rows. Further, the oblique extraction is performed by rotating the board 801 around the contact point 802 between the board 801 and the electrical connector 1000 while rotating the board 801. Therefore, due to the lever principle using the contact point 802 as a fulcrum, the connector 801 is moved between the connectors with a smaller force. The mating can be released.

  As described above, in the electrical connector, the pulling force for oblique pulling is smaller than that for parallel pulling. Therefore, when an oblique force is applied to the connector or the board to which the connector is attached, there is a problem that the fitting between the connectors is unexpectedly released.

  In recent years, the use of a flexible printed circuit board (FPC) for one or both of a pair of substrates connected by an electrical connector has increased. FPC is thin and highly flexible. For example, it is assumed that an operator's fingers, parts, or the like mistakenly contact the FPC to which the connector is attached, the FPC is bent, and an oblique force is applied to the connector. In this case, since the pulling force for the diagonal pulling is small, the fitting between the connectors may be released unexpectedly. With increasing use of FPC, the risk of such an electrical connector being diagonally removed has increased.

  On the other hand, it has been proposed to increase the removal force by providing a strong locking structure on the electrical connector. A strong lock structure can enhance both the parallel pulling force and the diagonal pulling force, but there are many complicated unlocking methods. Since the electrical connector is a part that can be inserted and removed, it is desirable that the operation of releasing the fitting between the connectors is easy.

  This invention is made | formed in view of such a situation, Comprising: It aims at preventing the cancellation | release of unintended connector fitting. Specifically, it is an object of the present invention to provide an electrical connector having a structure that prevents the oblique pull-out and has a high risk of unintentionally releasing the fitting between the connectors.

  According to an aspect of the present invention, an electrical connector for electrically connecting a first connector and a second connector, wherein the first connector has a first engagement member having a protrusion, The second connector has a second engagement member formed with a notch for engaging with the protrusion, and the protrusion protrudes in a state where the first connector and the second connector are electrically connected. An electrical connector is provided, wherein a portion engages with the notch, and rotation of the protrusion within the notch is suppressed by the notch.

  In the electrical connector of the present invention, when a force in an oblique direction is applied to the connector or the board, the rotation of the protruding portion of the engaging member attached to the connector is suppressed, so the rotation of the connector is also suppressed and the oblique removal is prevented. Is done. On the other hand, the electrical connector of the present invention can release the fitting between the connectors by parallel removal without rotation of the connector. The electrical connector of the present invention moves the protrusion along the notch and releases the engagement between the protrusion and the notch. Therefore, the electrically connected substrates can be separated while being kept parallel, and the electrical connector can be removed in parallel. Therefore, the electrical connector of the present invention can prevent unintentional release of the connector.

1 is a perspective view of a board-to-board connector 3 in a state in which a plug connector 1 and a receptacle connector 2 are fitted in an embodiment of the present invention, as viewed from the plug connector 1 side. FIG. 3 is a perspective view of the plug connector 1 in the embodiment of the present invention, as viewed from the side of the fitting surface with the receptacle connector 2. It is a perspective view of the plug engaging member 51 in embodiment of this invention. FIG. 3 is a perspective view of the receptacle connector 2 in the embodiment of the present invention, as viewed from the side of the mating surface with the plug connector 1. FIG. 4 is a perspective view of the receptacle connector 2 in the embodiment of the present invention, as viewed from the side mounted on the substrate 191. It is a perspective view of the receptacle engaging member 151 in the embodiment of the present invention. It is a perspective view of the plug engaging member 51 and the receptacle engaging member 151 in embodiment of this invention. It is a perspective view of the plug engaging member 51 and the receptacle engaging member 151 with which the plug connector 1 in embodiment of this invention was mounted | worn. It is a perspective view of the state where plug engaging member 51 with which plug connector 1 in an embodiment of the present invention was attached and receptacle engaging member 151 were engaged. FIG. 2 is a diagram of a state in which the plug engaging member 51 and the receptacle engaging member 151 are engaged in the embodiment of the present invention, a top view seen from the plug engaging member 51 side and a front view seen from the receptacle engaging member 151 side. It is. It is sectional drawing of the board-to-board connector 3 of the state which fitted the plug connector 1 and the receptacle connector 2 in embodiment of this invention, and is a figure which shows the engagement state of the plug engagement member 51 and the receptacle engagement member 151. . It is sectional drawing of the conventional electrical connector 1000. FIG.

  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 plug connector 1 and a receptacle 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 plug connector 1 and the receptacle connector 2.

[Plug connector]
First, the plug connector 1 will be described with reference to FIG. The plug connector 1 is a member having a rectangular parallelepiped shape, and the plug connector 1 is mounted on the substrate 91 by soldering a plug contact 61 described later to the substrate 91. In the present application, the side of the plug connector 1 that is mounted on the board is referred to as “mounting side” or “lower side”, and the side on which the receptacle connector 2 is fitted is referred to as “fitting side” or “upper side”. In this application, the direction in which the rectangular parallelepiped plug connector 1 extends (the direction indicated as “Y” in FIG. 2) is orthogonal to the “longitudinal direction” and 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 plug connector 1 mainly includes a bowl-shaped housing 11, a plurality of plug contacts 61 mounted on the housing 11, and a pair of plug engaging members 51 mounted on the housing 11 from above. 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. In the center of the housing 11, a space 13 is defined by the beams 12 a and 12 b, the bridges 26 a and 26 b, and the bottom plate 17. A part of the receptacle connector 2 described later is inserted into the space 13.

  A plug engaging member 51 is attached to the bridges 26 a and 26 b of the plug connector 1. A concave portion 23a is formed on the upper surface 26Ua of the bridge, and a side groove 24a extends in the height direction on each of the pair of side surfaces 26Sa of the bridge. Furthermore, an end face groove 25a is formed in the end face 26Ea of the bridge. The recess 23a, the pair of side surface grooves 24a, and the end surface groove 25a form one communicating space, and the plug engaging member 51 is accommodated in this space. Similarly, a concave portion 23b is formed on the upper surface 26Ub of the bridge, and a side surface groove 24b is formed extending in the height direction on each of the pair of side surfaces 26Sb, and an end surface groove 25b is formed on the end surface 26Eb of the bridge. Is formed. The recess 23b, the pair of side surface grooves 24b, and the end surface groove 25b form one communicating space, and the plug engaging member 51 is accommodated in this space.

  The plug engaging member 51 will be described with reference to FIGS. 2 and 3. The plug engaging member 51 is a member formed by punching and bending a conductive metal plate. In the present embodiment, the plug engaging member 51 is described using a conductive metal, but any material may be used. The plug engaging member 51 includes a plate-like main body 52 extending in one direction (short direction in FIG. 2) and a downward direction (see FIG. And a leg 55 extending in the height direction in FIG. The tips of the legs 55 are all soldered to the board 91 when the plug connector 1 is attached to the board 91. Further, in the vicinity of the tips of the legs 55, irregularities functioning as a retaining for the plug connector 1 with respect to the housing 11 are formed. Further, the main body 52 is provided with an arm 53 extending in the longitudinal direction in the same plane parallel to the surface of the main body 52. Further, an engagement piece 54 having a rectangular flat plate shape is provided on one of the side surfaces of the arm 53 facing each other. The engagement piece 54 is bent and extends from the arm 53 in a downward direction perpendicular to the surface of the arm 53, and further extends in the arm 53 so as to protrude from the end surface of the arm 53 (longitudinal direction in FIG. 2). Extend to. A portion protruding from the end face of the arm 53 is an engaging portion 54a. The bending direction of the engagement piece 54 is the same as the bending direction of the legs 55 with respect to the surface of the arm 53 (the surface of the main body 52). In addition, the cross section of the engagement piece 54 (engagement part 54a) in the longitudinal direction in FIG. 2 is substantially rectangular. As will be described later, when the receptacle connector 2 and the plug connector 1 are fitted together, the engaging portion 54a engages with a notch 154 provided in the receptacle engaging member 151. Note that the engagement piece 54 is located at the approximate center in the lateral direction in FIG.

  The mounting of the plug engaging member 51 to the plug connector 1 will be described with reference to FIGS. The plug engaging member 51 is fitted into each of the bridge recesses 23a and 23b, the side grooves 24a and 24b, and the end face grooves 25a and 25b, and pressed from above. As a result, the plug engaging member 51 is attached to the plug connector 1, and the leg 55 of the plug engaging member reaches the substrate 91 inside the side grooves 24a and 24b. The legs 55 are mechanically connected to the substrate 91 by being soldered to the substrate 91. As a result, the plug engaging member 51 strengthens the connection between the plug connector 1 and the board 91. The engaging piece 54 is inserted into the end surface grooves 25a and 25b. As shown in FIG. 8, a part of the engagement piece 54 protrudes from the bridge end surfaces 26 </ b> Ea and 26 </ b> Eb to the outside of the housing 11.

[Receptacle connector]
Next, the receptacle connector 2 will be described with reference to FIGS. 4 and 5. The receptacle connector 2 is a member having a rectangular parallelepiped shape, and is mounted on the substrate 191 by soldering a receptacle contact 161 described later to the substrate 191. In the present application, the side of the receptacle connector 2 that is mounted on the board is appropriately referred to as “mounting side” or “lower side”, and the side on which the plug connector 2 is fitted is referred to as “fitting side” or “upper side”. In this application, the direction in which the rectangular parallelepiped receptacle connector 2 extends (the direction indicated as “Y” in FIG. 4) 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. 4) is referred to as “short direction”, and the direction perpendicular to the surface of the substrate 91 (direction indicated as “Z” in FIG. 4) is referred to as “height direction”.

  The receptacle connector 2 includes a bowl-shaped housing 101, a plurality of receptacle contacts 161 attached to the housing 101, and a pair of receptacle engaging members 151 attached to the housing 101 from below. The housing 101 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 101 so as to connect the beams 112a and 112b and the bridges 126a and 126b. A raised portion 114 projects from the center portion of the bottom plate 117 and extends in the longitudinal direction.

  In the center of the housing 101, a space 113 is defined by the beams 112 a and 112 b, bridges 126 a and 126 b, and the bottom plate 17, and the raised portion 114 is located inside the space 113. A part of the plug connector 1 described above is inserted into the space 113.

  On the lower surfaces 126Ba and 126Bb of the bridges 126a and 126b of the receptacle connector 2, grooves 123a and 123b into which a part of the receptacle engaging member 151 is inserted are provided.

  The receptacle engaging member 151 will be described with reference to FIGS. 4 and 6. The receptacle engaging member 151 is a member formed by punching a conductive metal plate and bending it, and the plate-like main body 152 extending in one direction (short direction in FIG. 4) and the same from both ends thereof. A pair of side walls 153 extending in a direction that is bent substantially perpendicularly is provided. In the present embodiment, the receptacle engaging member 151 is described using a conductive metal, but any material may be used. The receptacle engaging member 151 has a “peg” shape due to the main body 152 and the pair of side walls 153. On the end surface 153 a of each side wall 153, an unevenness functioning as a retainer for the receptacle connector 2 with respect to the housing 101 is formed. A central portion of the main body 152 protrudes in the height direction (upward direction) in FIG. 4 to form a protruding portion 156. Further, a notch 154 is formed continuously from the protrusion 156 to the main body 152. The notch 154 is located substantially at the center of the main body 152, extends from one side of the main body 152 (the side where the projecting portion 156 is formed) toward the other side, and serves as a terminal (bottom) at a position close to the other side. A locking portion 154a is defined. The notch 154 defines a pair of wall surfaces 152a that are partly divided into two from the projecting portion 155 to face each other and extend in parallel. As will be described later, when the receptacle connector 1 and the plug connector 2 are fitted, the engagement piece 54 of the plug engagement member 51 is engaged with the notch 154. When the plug connector 1 is fitted to the receptacle connector 2, the notch 154 functions as a guide. In other words, the wall surface 152a functions as a guide when the engagement piece 54 engages the notch 154. Further, a part of the pair of side walls 153 protrudes in a direction opposite to the direction in which the protruding portion 156 protrudes, that is, in the downward direction, thereby providing the soldering tab 155. The soldering tab 155 is bent and extended substantially at a right angle toward the outside of the receptacle engaging member 151. As will be described later, the soldering tab 155 is soldered to the substrate 191.

  The mounting of the receptacle engaging member 151 to the receptacle connector 2 will be described with reference to FIGS. 4 and 5. The side where the protrusion 156 of the receptacle engaging member 151 is formed is opposed to the grooves 123a and 123b provided on the lower surfaces 126Ba and 126Bb of the bridge 126 of the receptacle connector 2, and the receptacle engaging member 151 is placed in the grooves 123a and 123b. And press from below. As a result, the receptacle engaging member 151 is attached to the receptacle connector 2, and the central portion of the main body 152 where the notch 154 is formed is exposed in the space 113 of the receptacle connector 151. Further, the pair of soldering tabs 155 are mechanically connected to the substrate 191 by being soldered to the substrate 191. Thereby, the receptacle engaging member 151 strengthens the connection between the receptacle connector 2 and the board 191.

  The housings 11 and 101 in the plug connector 1 and the receptacle connector 2 of the present embodiment described above can be integrally formed of an insulating material such as a synthetic resin. In this embodiment, an example of the dimensions of the produced plug connector 1 and receptacle connector 2 is shown below. The housing 11 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 width (X direction) is about 0.9 [mm]. The housing 101 has dimensions of about 3.0 [mm] in the vertical direction (X direction), about 7.3 [mm] in the horizontal direction (Y direction), and about 0.7 [mm] in the thickness (Z direction). Reference numeral 114 denotes a width (X direction) of about 0.8 [mm]. A plurality of plug contacts 61 provided on the plug connector 1 were formed on the beams 12a and 12b at a pitch of about 0.4 [mm]. The re-sectorable contacts 161 in the receptacle connector 2 are provided on the beams 112a and 112b so as to correspond to the same number at the same pitch as the plug connector 1.

[Engagement of engaging member]
The fitting between the plug connector 1 and the receptacle connector 2 and the engagement between the plug engaging member 51 and the receptacle engaging member 151 will be described. First, the fitting surface (upper side in FIG. 2) of the plug connector 1 and the fitting surface (upper side in FIG. 4) of the receptacle connector 2 are opposed to each other. At this time, as shown in FIGS. 7 and 8, the engaging portion 54 a of the plug engaging member 51 faces the notch 154 of the receptacle engaging member 151. Subsequently, the plug connector 1 and the receptacle connector 2 are fitted by fitting the connected convex shape including the beams 12a and 12b and the bridges 26a and 26b in the plug connector 1 into the concave shape including the space 113 in the receptacle connector 2. To do. The plurality of plug contacts 61 provided on the plug connector 1 and the plurality of receptacle contacts 161 provided on the receptacle connector 2 are in elastic contact with each other and are electrically connected. At this time, as shown in FIGS. 9 and 10, the engaging portion 54a is inserted into the notch 154 and slidably engaged, whereby the plug engaging member 51 and the receptacle engaging member 151 are engaged while being aligned. To do. In addition, the magnitude | size of the engaging part 54a and the notch 154 which mutually engage has the predetermined relationship mentioned later.

[Anti-slip removal prevention mechanism]
A mechanism for preventing the electrical connector 3 from being removed obliquely will be described with reference to FIG. Assume that the user tries to remove the substrate 91 from the substrate 191 at an angle. When the substrate 91 is tilted with respect to the substrate 191 and a force is applied in a direction away from the substrate 191, an oblique force is also applied to the plug connector 1 attached to the substrate 91. At this time, the engagement piece 54 of the plug engagement member 51 tries to rotate (tilt) in the direction of the force, but by the notch 154 of the receptacle engagement member 151 with which the engagement piece 54 is engaged, The rotation is suppressed. That is, in this embodiment, the engagement piece 54 is formed with a sufficient size with respect to the size of the cut 154 so that the rotation of the engagement piece 54 is suppressed inside the cut 154. Therefore, when the engagement piece 54 rotates (tilts) or tries to rotate (trims), the corner of the substantially rectangular cross section of the engagement piece 54 comes into contact with the wall surface 152a that defines the cut 154, Further rotation is prevented. As a result, the rotation of the plug connector 2 to which the plug engaging member 51 is attached is suppressed, and the electrical connector 3 is prevented from being removed obliquely.

  In a state where the above-described oblique removal prevention mechanism is operating, the engagement piece 54 does not rotate at all, or even if rotation occurs, the range of rotation is within the range of electrical connection between the plug connector 1 and the receptacle connector 2. It is within the range that can be maintained. That is, as long as the engagement piece 54 is rotatable, the plug contact 61 and the receptacle contact 161 are kept fitted.

  The electrical connector 3 of the present embodiment can release the fitting between the connectors by parallel removal without rotation of the connector. When the board 91 and the board 191 are pulled apart while being held in parallel, and the fitting of the plug connector 1 and the receptacle connector 2 is released, the engagement piece 54 contacts the wall surface 152a and is guided along the cut 154 while sliding. Then, it moves outward from the notch 154, and the engagement with the notch 154 is released. Although the present embodiment has a structure capable of easily releasing the fitting between the connectors (parallel removal), it can effectively prevent the electrical connector from being obliquely removed. According to the present invention, the fitting between the connectors is released by parallel removal. It is assumed that the engagement piece 54 is slightly removed from the cut 154, but friction is generated by sliding between the engagement piece 54 and the wall surface 152a of the cut 154. As a result, oblique removal is suppressed.

  From the viewpoint of efficiently preventing the oblique removal, it is desirable that the sizes of the respective portions of the plug engaging member 51 and the receptacle engaging member 151 have the following relationship. In a state where the engagement piece 54 is engaged with the cut 154, the length of the engagement piece 54 in the depth direction of the cut 154 (a shown in FIG. 10) is larger than the width of the cut 154 (d shown in FIG. 10). Longer is preferred. Thereby, rotation of the engagement piece 54 within the notch 154 can be reliably prevented. In the engagement piece 54 of this embodiment, the depth direction of the cut 154 is the same as the direction perpendicular to the surface of the main body 52 of the plug engagement member.

  Further, in a state where the engagement piece 54 is engaged with the cut 154, the depth of the cut 154 (e shown in FIG. 10) is the length of the engagement piece 54 in the depth direction of the cut 154 (a shown in FIG. 10). ) Longer is preferred. The engaging piece 54 can be reliably engaged with the notch 154 to prevent the disengagement.

  In this embodiment, an example of the dimensions of the produced plug engaging member 51 and receptacle engaging member 151 is shown below. In the plug engagement member 51, the length of the engagement piece 54 (a shown in FIG. 10) in the direction perpendicular to the surface of the main body 52 is 0.22 mm, and the thickness of the engagement piece 54 (b shown in FIG. 10) is 0. The length (c shown in FIG. 10) in the protruding direction of the portion protruding from the arm 55 of the engaging piece (engaging portion 54a) was 0.25 mm. In the receptacle engaging member 151, the width of the cut 154 (d shown in FIG. 10) was 0.1 mm, and the depth of the cut 154 (e shown in FIG. 10) was 0.4 mm. Further, in a state where the engagement piece 54 is engaged with the notch 154, the distance from the end of the engagement piece to the end of the protrusion 156 (f shown in FIG. 10) is 0.12 mm, and the main body of the receptacle engagement member The length (g shown in FIG. 10) in the protruding direction of the engaging piece 154 protruding from the surface of 152 was 0.05 mm. In the present embodiment, the length a (0.22 mm) of the engagement piece 54 in the depth direction of the cut 154 is longer than the width d (0.1 mm) of the cut 154, and the depth e of the cut 154. (0.4 mm) is longer than the length a (0.22 mm) of the engagement piece 54 in the depth direction of the cut 154. Accordingly, it is possible to efficiently prevent the electrical connector from being obliquely removed.

  Further, the engagement piece 54 and the notch 154 are provided at substantially the center of the plug engagement member 51 and the receptacle engagement member 151 in the extending direction of the main bodies 52 and 152 (short direction in FIGS. 2 and 4). be able to. By being provided at substantially the center in the extending direction of the main bodies 52 and 152 (short direction in FIGS. 2 and 4), the same effect can be exhibited even when the electrical connector is obliquely pulled out from either the left or right. it can.

  The substrates 91 and 191 of this embodiment are, for example, printed circuit boards used for electronic devices and the like, but may be any type of substrate such as an FPC. In particular, when FPC is used, there is a high possibility that unintentional oblique extraction will occur, so the present invention is effective.

  Since the plug engaging member 51 and the receptacle engaging member 151 of this embodiment are soldered, they each have a function of firmly fixing the connector to the board. Since the engaging members 51 and 151 have the function of preventing the oblique removal and the function of strengthening the fixing force between the connector and the board, the number of parts of the connector can be reduced. From the viewpoint of preventing the electrical connector from being obliquely removed, the plug engaging member 51 and the receptacle engaging member 151 do not necessarily have a function of strengthening the fixing of the connector to the board.

  In this embodiment, the plug engagement member 51 has the engagement piece 54 and the notch 154 is formed in the receptacle engagement member 151. On the contrary, the receptacle engagement member 151 has the engagement piece. A cut may be formed in the plug engaging member 51.

  In the present embodiment, the electrical connector 3 is provided with one engagement structure including the engagement piece 54 and the cut 154, but a plurality of engagement structures may be provided. In this case, at least one of the plurality of engagement structures is arranged at the approximate center in the extending direction of the main bodies 52 and 152 (short direction in FIGS. 2 and 4). Alternatively, the plurality of engagement structures are arranged on the target with the substantial center in the extending direction of the main bodies 52 and 152 (short direction in FIGS. 2 and 4) interposed therebetween.

  In the present embodiment, a cut having a constant width (d shown in FIG. 10) of the cut 154 is formed. However, if the rotation of the engagement piece 54 can be suppressed by the cut 154, the width of the cut is not necessarily constant. Also good. For example, even if the groove width in the vicinity of the incision locking portion 154a is wide enough to prevent the rotation of the engagement piece 54, the groove in the other part of the incision (the part near the side where the protrusion 156 is formed) This is a case where the width of the engagement piece 54 can be suppressed by a portion having a narrow width and a narrow groove width.

  An electrical connector such as a board-to-board connector of the present invention is a connector that electrically connects a board and a board, and has a structure that is difficult to be removed obliquely. Therefore, it is possible to prevent the connector from being disengaged even if an unexpected force is applied in the oblique direction. 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 Plug Connector 2 Receptacle Connector 3 Board to Board Connector (Electric Connector)

11 Housing 12a, 12b Beam 13 Space 17 Bottom plate 23a, 23b Recess 24a, 24b Side groove 25a, 25b End face groove 26a, 26b Bridge 26Ua, 26Ub Bridge top face 26Sa, 26Sb Bridge side face 26Ea, 26Eb Bridge end face

51 Plug engagement member 52 Main body 53 Arm 54 Engagement piece 54a Engagement part 55 Leg 61 Plug contact 91 Substrate

101 Housing 112a, 112b Beam 113 Space 114 Raised portion 117 Bottom plate 126a, 126b Bridge 126Ba, 126Bb Bridge lower surface 123a, 123b Bridge lower surface hole

151 Receptacle engaging member 152 Main body 152a Wall surface 153 Side wall 153a End surface 154 Notch 154a Locking portion 155 Soldered tab 156 Protruding portion 191 Substrate

800 Plug connector 801 Substrate 802 Contact 851a, 851b Plug contact

900 Receptacle connector 901 Substrate 951a, 951b Receptacle contact

1000 Electrical connector

Claims (9)

An electrical connector for electrically connecting the first connector and the second connector,
The first connector has a first engaging member having a protruding portion, and the second connector has a second engaging member formed with a notch for engaging the protruding portion,
In a state where the first connector and the second connector are electrically connected, the protrusion engages with the notch,
The electrical connector, wherein rotation of the protruding portion within the cut is suppressed by the cut.   The electrical connector according to claim 1, wherein the rotation of the protrusion within the cut is suppressed within a range in which the electrical connection can be maintained.   The electrical connector according to claim 1, wherein the protrusion does not rotate within the cut. In the state where the protrusion is engaged with the notch,
The length of the protrusion part in the depth direction of the said notch is longer than the width | variety of the said notch, The electrical connector as described in any one of Claims 1-3 characterized by the above-mentioned. In the state where the protrusion is engaged with the notch,
5. The electrical connector according to claim 1, wherein a depth of the cut is deeper than a length of the protruding portion in the depth direction of the cut.   Each of the first and second engaging members has a main body extending in one direction, and the protrusion and the cut are formed directly or indirectly at a substantially center in the extending direction of the main body, respectively. The electrical connector according to any one of claims 1 to 5, wherein: The first connector is a connector for connecting to a first board, and the second connector is a connector for connecting to a second board,
The electrical connector according to claim 1, wherein the first board and / or the second board is a flexible printed board. The first connector is a connector for connecting to a first board, and the second connector is a connector for connecting to a second board,
The first engaging member is a member for connecting to the first substrate, and the second engaging member is a member for connecting to the second substrate. The electrical connector as described in any one of Claims 1-7. The protrusion is a flat plate extending in a direction connecting the first connector and the second connector;
The electrical connector according to claim 1, wherein the notch is a slit that is slidably engaged with the flat plate.

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