JP4774956B2 - Connector and connector receptacle - Google Patents

Description

  The present invention relates to a connector composed of a receptacle and a plug, a connector receptacle, and a connector plug.

  Generally, a small connector composed of a plug and a receptacle is provided with a means for preventing erroneous insertion in order to prevent the plug from being inserted into the receptacle in an incorrect direction such as the reverse direction (hereinafter referred to as “incorrect insertion”). It has been.

  As such erroneous insertion preventing means, a method is known in which a certain space is provided below the plug fitting opening of the shield case of the receptacle, and a projection for preventing erroneous insertion is provided in the space.

  Other methods include making the plug shield case and the receptacle shield case vertically and horizontally asymmetric, as shown by the mini USB connector, and the upper corner of the plug shield case and the receptacle shield case. There is a method of configuring the C-plane.

  In the conventional method of providing a protrusion for preventing erroneous insertion at the lower part of the plug fitting port, the width of the receptacle is increased or the height is increased by the space for providing such a protrusion. There is a problem that it is difficult to reduce the size.

  Further, the method of forming the upper corner of the fitting opening of the shield case of the receptacle on the C surface cannot sufficiently cope with the case where the plug is inserted into the receptacle obliquely. Further, when the connector is further miniaturized, there is a problem that the plug can be forcibly inserted into the receptacle in the reverse direction even if such a C surface is provided.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above problems in the conventional connector, and even when the connector is miniaturized, the connector, the connector receptacle, and the connector that can reliably prevent erroneous and oblique insertion of the plug into the receptacle. The purpose is to provide a plug.

A connector according to the present invention is a connector including a receptacle mounted on a substrate and a plug connected to the receptacle, and the receptacle has a substantially rectangular tube shape having an opening and accommodating a connection terminal therein. The plug has a shield case formed of a substantially rectangular tube-shaped metal plate that accommodates a connection terminal therein and is inserted into the shield case of the receptacle. By inserting the shield case of the plug into the shield case of the receptacle, the connection terminal of the plug and the connection terminal of the receptacle are electrically connected, and the receptacle is connected to the receptacle. in the opening side, in the metal plate forming the bottom surface of the side to be mounted on the substrate of the receptacle of the shield case Has an erroneous insertion prevention guide piece portions launched by bending the upper surface of the receptacle of the shield case, recesses corresponding to the insertion preventing guide piece the erroneous formed in the metal plate forming the bottom surface of the shield case of the plug When the plug is connected to the receptacle, the erroneous insertion prevention guide piece is inserted into the recess.

  In the connector according to the present invention, the erroneous insertion prevention guide piece has one or more notches, and one or more protrusions corresponding to the notches are formed inside the recess of the plug. Is preferred.

In the connector according to the present invention, the upper surface of the shield case of the receptacle is elastically engaged with a recess formed on the upper surface of the shield case of the plug when the plug is inserted into the receptacle. It is preferable that a locking piece is formed.

The connector receptacle according to the present invention is mounted on a substrate and has an opening into which a plug having a shield case formed of a substantially rectangular tube-shaped metal plate that accommodates a connection terminal is inserted. A receptacle for a connector,
The receptacle has a shield case formed of a substantially rectangular cylindrical metal plate in which the shield case of the plug is inserted through the opening, and the shield case of the receptacle has a connection terminal inside. The plug connecting case is inserted into the receptacle shielding case so that the connecting terminal of the plug and the connecting terminal of the receptacle are electrically connected to each other. In the opening side of the receptacle, a guide for erroneous insertion prevention is formed by bending the center part of the metal plate forming the bottom surface of the shield case of the receptacle to be mounted on the substrate toward the upper surface side of the shield case of the receptacle. A guide piece for preventing erroneous insertion when connecting the plug to the receptacle. Characterized in that is adapted to inserted into the recess formed in the metal plate forming the bottom surface of the shield case of the plug.

The connector according to the first aspect of the present invention is such that, on the opening side of the receptacle constituting the connector, the central portion of the metal plate forming the bottom surface of the receptacle mounted on the substrate of the shield case is the upper surface side of the receptacle shield case. because it has an erroneous insertion prevention guide pieces launched by bending, it is not necessary to secure a space for providing a projection for preventing erroneous insertion into the plug fitting portion bottom or the like of the receptacle of the shield case. For this reason, the receptacle can be reduced in thickness and size. The metal plate forming the bottom of the shield case of the plug has a recess corresponding to the receptacle insertion prevention guide piece. When the plug is connected to the receptacle, the insertion guide is inserted into the depression. It comes to fit. For this reason, even when erroneously inserted, the erroneous insertion prevention guide piece interferes with a portion where there is no concave portion, so that erroneous insertion in the reverse direction can be effectively prevented. In addition, since the concave portion is guided by the erroneous insertion prevention guide piece, undesired insertion of the plug from an oblique direction can be prevented.
According to a first aspect of the present invention, there is provided the connector according to the present invention, wherein the receptacle is mounted on the substrate, the erroneous insertion prevention guide piece is formed on the bottom surface of the shield case of the receptacle, and the concave portion of the plug Is formed on the bottom surface of the shield case of the plug. For this reason, even when the plug is erroneously inserted in the reverse direction, the lower portion of the erroneous insertion prevention guide piece is supported by the substrate, and the bending and deformation of the erroneous insertion prevention guide piece in the substrate side direction can be prevented.

  In the connector according to the second aspect of the present invention, the erroneous insertion prevention guide piece has one or more notches, and one or more protrusions corresponding to the notches are formed inside the recesses of the plug. Yes. For this reason, by appropriately changing the positions where these notches and projections are formed, it is possible to prevent the plug from being erroneously inserted into an unsuitable receptacle.

  According to a fourth aspect of the present invention, there is provided the connector according to the present invention, wherein the upper surface of the receptacle shield case is elastically engaged with a recess formed on the upper surface of the plug shield case when the plug is inserted into the receptacle. Since the pieces are formed, the plug can be effectively prevented from falling off.

  Hereinafter, a connector according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The connector of the present embodiment is a connector including a receptacle 1 mounted on a substrate 11 and a plug 5 connected to the receptacle 1, and the receptacle 1 has an opening 1a and a plurality of connection terminals 31 therein. The plug 5 has a substantially square cylindrical shield case 6 that accommodates the connection terminal 71 and is inserted into the shield case 2 of the receptacle 1. By inserting the shield case 6 of the plug 5 into the shield case 2 of the receptacle 1, the connection terminal 71 of the plug 5 and the connection terminal 31 of the receptacle 1 are electrically connected, and the receptacle 1 In the opening 1a of the shield case 2, there is an erroneous insertion prevention guide piece 23 that is raised by bending a part of the shield case 2 into the opening 1a. The shield case 6 of the plug 5 is formed with a recess 63 corresponding to the erroneous insertion prevention guide piece 23 so that the erroneous insertion prevention guide piece 23 is inserted into the recess 63 when the plug 5 is connected to the receptacle 1. It is characterized by becoming.

  Initially, the receptacle 1 used for the connector of this embodiment is demonstrated, referring FIG. 1 thru | or FIG. As shown in FIGS. 1 and 5, the receptacle 1 includes a substantially rectangular tube-shaped shield case 2, a connection terminal portion 3 accommodated in the shield case 2, and a housing accommodated in the shield case 2. 4. Then, as shown in FIGS. 2 and 5, the receptacle 1 is mounted on the substrate 11.

  The shield case 2 is formed by bending a single conductive metal plate punched into a predetermined shape into a substantially rectangular tube shape. A surface on the side of the substrate 11 on which the receptacle 1 is mounted, that is, a bottom surface 21 (see FIG. 4) that faces the substrate 11, an upper surface 26 on the opposite side of the bottom surface 21, and between the bottom surface 21 and the upper surface 26. And a side surface 28 (see FIG. 1).

  As shown in FIG. 4, the shield case 2 has an erroneous insertion prevention guide piece 23 that is bent and raised inside the opening 1 a at the center of the bottom surface 21 on the opening 1 a side. As will be described later, the erroneous insertion prevention guide piece 23 guides the recess 63 formed on the bottom surface 61 of the shield case 6 of the plug 5 when the plug 5 is inserted into the receptacle 1. Fit (see FIG. 11).

  As shown in FIG. 1, an elastic locking piece 27 is formed in the approximate center of the upper surface 26. The elastic locking piece 27 is formed by punching the upper surface 26. As will be described later, when the plug 5 is inserted into the receptacle 1, the elastic locking piece 27 engages with a recess 67 formed on the upper surface 66 of the shield case 6 of the plug 5 (see FIG. 6). .

  As shown in FIG. 1, the two side surfaces 28 of the shield case 2 of the receptacle 1 have a C surface 28a provided at each upper corner portion and a pair of engaging projections 29 provided at each lower end portion. ing. The shape of the C surface 28a has a shape corresponding to the shape of the C surface 68a formed on the side surface 68 of the shield case 6 of the plug 5 as described later (see FIG. 7).

  The engagement protrusion 29 shown in FIG. 1 is a member for fixing the receptacle 1 on the substrate 11. That is, as shown in FIGS. 2 and 5, when the receptacle 1 is mounted on the substrate 11, the receptacle 1 is inserted into the attachment hole 11 a formed in the substrate 11 and then soldered on the surface side of the substrate 11.

  As shown in FIGS. 2 and 5, the connection terminal portion 3 of the receptacle 1 includes a plurality of connection terminals 31, a plate-like terminal support portion 32 that supports the connection terminals 31, and a plurality of rear connection terminals 33. Have. Each connection terminal 31 and each back connection terminal 33 are formed from a single piece of conductive metal, and are provided so as to penetrate the housing 4 as shown in FIG. Further, each connection terminal 31 is disposed below the terminal support portion 32, and contacts the corresponding connection terminal 71 of the connection terminal portion 7 of the plug 5 described later when the plug 5 and the receptacle 1 are connected, Electrically connected. The back connection terminal 33 is soldered to a connection location (not shown) on the substrate 11 (see FIG. 5).

  The housing 4 shown in FIG. 5 is a resin molded product that is an insulator, and is integrally formed with the terminal support portion 32 and supports the shield case 2.

  Next, the plug 5 used for the connector of this embodiment is demonstrated, referring FIG. 6 thru | or FIG. This plug includes a shield case 6 having a substantially rectangular tube shape, a connection terminal portion 7 housed inside the shield case 6, and a plug body 51 provided at the base of the shield case 6. As shown in FIG. 6, the plug 5 is connected to the cord 52.

  As shown in FIGS. 6 and 7, the shield case 6 is a conductive metal plate formed in a substantially rectangular tube shape, and a bottom surface 61 (a surface corresponding to the bottom surface 21 of the shield case 2 of the receptacle 1). 7), an upper surface 66 opposite to the bottom surface 61, and a side surface 68 positioned between the bottom surface 61 and the upper surface 66.

  As shown in FIG. 10, a recess 63 is formed in the center of the bottom surface 61, and when the plug 5 is connected to the receptacle 1, it fits with the erroneous insertion prevention guide piece 23 of the receptacle 1. Yes. The width dimension of the recess 63 is slightly smaller than the width dimension of the erroneous insertion prevention guide piece 23 in order to facilitate the insertion of the receptacle 1 and the plug 5.

  As shown in FIG. 9, a recess 67 is formed in the approximate center of the upper surface 66. When the plug 5 is inserted into the receptacle 1, the concave portion 67 engages with an elastic locking piece 27 formed on the upper surface 26 of the shield case 2 of the receptacle 1, so that the plug 5 and the receptacle 1 can be more securely connected. Connecting.

  As shown in FIG. 7, the two side surfaces 68 each have a C surface 68a provided at the upper corner. The shape of the C surface 68 a has a shape corresponding to the shape of the C surface 28 a formed on the side surface 28 of the shield case 2 of the plug 5.

  The connection terminal portion 7 shown in FIG. 7 includes a plurality of connection terminals 71 and a terminal support portion 72 that supports the connection terminals 71. The plurality of connection terminals 71 are connected to each single wire (not shown) of the cord 52 inside the plug body 51.

Hereinafter, the effect of this embodiment is demonstrated.
As shown in FIG. 11, the plug 5 and the receptacle 1 according to this embodiment are connected by inserting the shield case 6 of the plug 5 into the shield case 2 of the receptacle 1. At the time of insertion, the concave portion 63 is guided by the erroneous insertion prevention guide piece 23, the erroneous insertion prevention guide piece 23 and the concave portion 63 are fitted, and the shield case 6 of the plug 5 is completely attached to the shield case 2 of the receptacle 1. Can be securely inserted inside. Further, since the concave portion 63 is guided by the erroneous insertion prevention guide piece 23, it is possible to prevent undesired insertion of the plug 5 from an oblique direction.

  On the other hand, when the plug 5 is mistakenly inserted in the reverse direction so that the bottom surface 61 of the receptacle 1 is on the top surface 26 side of the receptacle 1, the top end 66a (see FIG. 6) of the shield case 6 of the plug 5 23, the plug 5 cannot be inserted into the receptacle 1. For this reason, the erroneous insertion of the plug 5 in the reverse direction with respect to the receptacle 1 can be reliably prevented.

  Moreover, since the receptacle 1 and the plug 5 of this embodiment have the C surface 28a and the C surface 68a, respectively, reverse insertion can be prevented more effectively. In addition, in this embodiment, although it has C surface 28a and C surface 68a, it is not necessarily required to have such C surface.

  The erroneous insertion prevention guide piece 23 is formed on the bottom surface 21 of the shield case 2 of the receptacle 1, and even when the plug 5 is erroneously inserted in the reverse direction, the lower portion of the erroneous insertion prevention guide piece 23 is supported by the substrate 11. (Refer to FIG. 2), the bending downward of the erroneous insertion prevention guide piece 23 (in the direction of the substrate 11 indicated by the arrow in FIG. 1) is prevented. For this reason, even when the plug 5 is erroneously inserted in the opposite direction with a considerably strong force, such bending of the erroneous insertion prevention guide piece 23 is prevented, and deformation of the shield case 2 of the receptacle 1 due to erroneous insertion is prevented. Can do.

  Further, the erroneous insertion prevention guide piece 23 is a portion that is raised by bending a part of the bottom surface 21 of the shield case 2 of the receptacle 1 to the inside of the opening 1a, so that the receptacle 1 is provided with a protrusion for preventing erroneous insertion. Therefore, the receptacle 1 can be thinned and miniaturized.

  When the plug 5 is correctly inserted into the receptacle 1, the elastic locking piece 27 of the receptacle 1 engages with the recess 67 formed on the upper surface 66 of the plug 5, thereby effectively preventing the plug 5 from falling off. be able to.

  As shown in FIGS. 12 and 13, a notch 23a is formed in the erroneous insertion prevention guide piece 23 of the receptacle 1, and a protrusion 63a is formed in the recess 63 of the plug 5 so as to correspond to the notch 23a. It is also possible. The plug 5 can be inserted into the receptacle 1 only when the notch 23a and the projection 63a are fitted. For this reason, it is possible to prevent the plug from being erroneously inserted into an unsuitable receptacle by appropriately changing the positions where the notches 23a and the convex portions 63a are formed. One or more notches 23a can be formed in the erroneous insertion prevention guide piece 23. Similarly, one or more protrusions 63a can be formed in the recess 63 so as to correspond to the one or more notches 23a. it can.

  Although the embodiments of the present invention have been described below, the present invention is not limited to the above embodiments, and various modifications can be made based on the technical idea of the present invention, and the present invention naturally extends to these embodiments. It is.

It is a perspective view of the receptacle 1 used for the connector of embodiment which concerns on this invention. The substrate 11 is not displayed. It is a front view of the receptacle 1 shown in FIG. It is a top view of the receptacle 1 shown in FIG. It is a bottom view of the receptacle 1 shown in FIG. It is a longitudinal cross-sectional view of the receptacle 1 shown in FIG. It is a perspective view of the plug 5 used for the connector of embodiment which concerns on this invention. It is a front view of the plug 5 shown in FIG. It is a side view of the plug 5 shown in FIG. It is a top view of the plug 5 shown in FIG. It is a bottom view of the plug 5 shown in FIG. It is a perspective view which shows the connection state of the receptacle 1 shown in FIG. 1, and the plug 5 shown in FIG. The substrate 11 is not shown. It is a front view of the receptacle 1 by which the notch 23a is formed in the erroneous insertion prevention guide piece 23 of the receptacle 1 shown in FIG. It is a front view of the plug 5 in which the convex part 63a is formed in the recessed part 63 of the plug 5 shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Receptacle 1a Receptacle opening 1b Receptacle back part 11 Board | substrate 11a Mounting hole 2, 6 Shield case 21, 61 Bottom face 23 Misinsertion prevention guide piece 23a Notch 26, 66 Upper surface 27 Elastic locking piece 28, 68 Side surface 28a, 68a C surface 29 Engagement projections 3 and 7 Connection terminal portions 31 and 71 Connection terminals 32 and 72 Terminal support portion 33 Rear connection terminal 4 Housing 5 Plug 51 Plug body 52 Cord 63 and 67 Recess 63a Projection 66a Upper surface end

Claims (4)

A connector comprising a receptacle mounted on a substrate and a plug connected to the receptacle,
The receptacle has a shield case formed of a substantially rectangular tube-shaped metal plate having an opening and accommodating a connection terminal therein,
The plug has a shield case formed of a substantially rectangular tube-shaped metal plate that houses a connection terminal therein and is inserted into the shield case of the receptacle.
By inserting the shield case of the plug into the shield case of the receptacle, the connection terminal of the plug and the connection terminal of the receptacle are electrically connected,
The receptacle is a misinsertion in which the central portion of the metal plate forming the bottom surface of the receptacle shield case mounted on the substrate is bent to the upper surface side of the shield case of the receptacle on the opening side of the receptacle The metal plate having a prevention guide piece and forming the bottom surface of the shield case of the plug is formed with a recess corresponding to the erroneous insertion prevention guide piece, and the erroneous insertion prevention guide is provided when the plug is connected to the receptacle. A connector characterized in that a piece is inserted into the recess.   The connector according to claim 1, wherein the erroneous insertion prevention guide piece has one or more notches, and one or more protrusions corresponding to the notches are formed inside the recess of the plug. On the top surface of the shield case of the receptacle, said when the plug is inserted into the receptacle, the resilient locking pieces to be engaged is formed in a recess formed in said top surface of the shield case of the plug The connector according to claim 1 or 2 . Used is mounted on the substrate, a connector receptacle plug having a shield case formed of a substantially rectangular tube shaped metal plate which accommodates the connection terminals therein has an opening to be fitted ,
The receptacle has a shield case formed of a substantially rectangular cylindrical metal plate in which the shield case of the plug is inserted through the opening, and the shield case of the receptacle has a connection terminal inside. The plug's shield case is inserted into the receptacle's shield case, so that the plug's connection terminal and the receptacle's connection terminal are electrically connected;
The receptacle is a misinsertion in which the central portion of the metal plate forming the bottom surface of the receptacle shield case mounted on the substrate is bent to the upper surface side of the shield case of the receptacle on the opening side of the receptacle When the plug is connected to the receptacle, the erroneous insertion prevention guide piece is inserted into a recess formed in a metal plate forming the bottom surface of the shield case of the plug. A receptacle for connectors.

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