CN102255199A - Rectangular connector socket with false-imbedding prevention structure for plug - Google Patents

Abstract

The present invention provides a rectangular connector socket with a plug misfitting preventing structure. It has a position to be inserted into the side of the opening of the plug fitting recess, and is inserted into the standard connector plug and moves to the side of the retracting direction of the stopper retracting action piece; Fitting the central side of the concave part, and the stopper for preventing misfitting linked with the retracting action piece of the stopper; and the part for preventing wrong fitting of the common spring part supporting the above parts; when inserting the standard connector plug, restricting Since the standard connector plug retracts to the side outside the plug fitting recess, the restricting part for preventing misfitting and its linkage retracts to the outside of the plug fitting recess and can be inserted into the connector plug; In the case of a small non-standard connector plug in which the operating piece does not contact, the stopper for preventing misfitting does not move in the retracting direction, and the non-standard connector plug abuts against it to prevent insertion.

Description

Rectangular connector receptacle with structure to prevent plug misfitting

technical field

The present invention is a multi-pin rectangular connector socket used as a socket, and relates to a rectangular connector socket with a plug misfit prevention structure that prevents insertion of a non-standard plug whose shape is smaller than the corresponding standard plug.

Background technique

Conventionally, a rectangular connector composed of a rectangular connector receptacle having a predetermined rectangular shape and a rectangular connector receptacle having a plug fitting portion for fitting thereto has been used. In such a rectangular connector, a plate-shaped contact holding protrusion protrudes from the central portion of the plug fitting portion of the receptacle, and holds a plurality of contacts in an exposed state on both surfaces thereof. The following structure has been widely developed (for example, Patent Document 1-Japanese Patent Laid-Open Publication No. 8-130052): On the opposite plug, a long groove-shaped contact holding groove for the above-mentioned contact holding protrusion to fit is formed, and in it The contacts are held on the surface and arranged so as to be exposed, and when the plug and the receptacle are fitted together, predetermined contacts of both come into contact with each other.

Since this rectangular connector is a structure that connects the electronic circuits of the specified plug-side electronic equipment and socket-side electronic equipment, in order to avoid connection between incompatible electronic equipment, the shape and size are pre-defined. The rectangular shape, so that the non-corresponding plug and socket can not fit the structure.

However, in recent years, along with the miniaturization of portable electronic devices, the shape of the rectangular connector has also been significantly miniaturized. The permissible range of deformation that differentiates the connectors is narrowed, and a plug of a shape smaller than a specified corresponding plug may be misfitted.

If this misfitting occurs, especially in the case of exposing the contact to the inner surface of the contact holding groove and the outer surface of the contact holding protrusion mentioned above, there is a connection that should not have been made. The problem of electrical connections that damage electronic equipment.

Contents of the invention

In view of the above-mentioned existing problems, an object of the present invention is to provide a rectangular connector socket with a plug misfitting prevention structure to prevent misfitting of a plug that is smaller than the corresponding plug that should be fitted but similar in shape.

In order to solve the above-mentioned existing problems and realize the intended purpose, the rectangular connector socket with the structure for preventing misfitting of the plugs described in Scheme 1 is to fit a cylindrical plug with a rectangular bottom with a flat cross section. A contact piece protrudes from the inner bottom surface of the recess, and is inserted into a rectangular connector socket having a desired electrical connection to the plug by inserting a connector plug having a cross-sectional shape corresponding to the shape of the inner peripheral surface of the plug fitting recess, It is characterized by,

Equipped with a misfit preventing member having a stopper that is inserted into a position shifted to the side of the opening of the plug fitting recess and that moves in the retracting direction side due to the insertion of the standard connector plug. a retracting operation piece; a restrictor for preventing misfitting that is inserted into the center side of the plug fitting recess compared with the restricting member retracting operating piece and interlocks with the restricting member retracting operating piece; and supports the restricting member retracting operating piece and The shared spring part of the limiter for preventing misfitting;

When inserting a standard connector plug that matches the shape of the above-mentioned plug fitting recess, the restrictor retreating action piece is moved to the side outside the plug fitting recess due to the insertion of the standard connector plug, and the above-mentioned misfit prevention is used. The restrictor is retracted out of the plug fitting recess in conjunction with it, so that the connector plug can be inserted; when inserting a small non-standard connector plug that does not contact the retracting action piece of the above-mentioned restrictor, the above-mentioned restrictor for preventing misfitting will not Moving in the retracting direction, the plug of the non-standard connector comes into contact with the stopper for preventing misfitting to prevent insertion of the plug.

The invention described in claim 2 is a rectangular connector socket with a plug misfitting prevention structure based on the structure of the above claim 1, and is characterized in that the misfitting preventing member is formed by punching and bending a sheet of metal. The restrictor retracting action piece, the misfit preventing restrictor, and the common spring piece supporting these are integrally formed by processing, and the misfit preventing member is fixed to the outer peripheral surface of the rectangular connector receptacle.

The invention described in claim 3 is a rectangular connector socket with a plug misfitting prevention structure, which is based on the structure of the above claim 2, and is characterized in that the restrictor retracting action piece of the misfitting preventing member and the misfitting prevention piece are combined. The fitting restrictor is inserted into the plug fitting recess through a window around the plug pressing spring piece formed by punching the peripheral wall of the plug fitting recess.

The rectangular connector socket with plug misfitting prevention structure according to the invention described in claim 4 is based on the structure of any one of the above-mentioned claims 1 to 3, and is characterized in that the above-mentioned mis-mating preventing member is located in one of the above-mentioned spring pieces. The front end portion is bent downward to form the above-mentioned misfit preventing restrictor, and the front ends of a pair of transverse arm portions extending laterally on both sides of the front end portion of the spring piece are bent downward to form the restrictor retreating piece.

The invention described in claim 5 is a rectangular connector socket with a structure for preventing misfitting of plugs, which is based on the structure of claim 1, and is characterized in that the plug fitting recess is made of an outer casing made of a metal plate and fixed to the outer casing. The outer casing is made of a contact holding member made of insulating synthetic resin material, and the wrong fitting prevention member including the stopper retracting action piece, the stopper for preventing wrong fitting, and the spring piece is integrally formed on the outer case. .

The effects of the present invention are as follows.

In the present invention, since the misfit preventing member is provided, the misfit preventing member has a position to be inserted into the side portion of the opening of the plug fitting recess of the rectangular connector receptacle, and due to the insertion of the standard connector plug A restrictor retracting operation piece that moves to the side in the retracting direction; a restricting member for preventing misfitting that is inserted into the center side of the plug fitting recess compared with the restricting member retracting operation piece and interlocked with the restricting member retracting operation piece; And the common spring part that supports the retracting action piece of the limiter and the limiter for preventing misfitting; Insertion of the connector plug moves to the side retracting to the outside of the plug fitting recess, and the above-mentioned restriction member for preventing misfitting is interlocked with it and retracts to the outside of the plug fitting recess so that the connector plug can be inserted; When the non-contact small non-standard connector plug is used, the stopper for preventing misfitting does not move in the retracting direction, and the non-standard connector plug abuts against the stopper for preventing wrong fitting to prevent insertion of the plug. In this way, the misfitting of the small non-standard connector plug that may fit into the plug fitting recess is reliably prevented, and the safety of the electronic equipment can be ensured.

In the present invention, the above-mentioned misfit preventing member is formed by punching and bending a sheet metal material to integrally form the above-mentioned stopper retracting operation piece, the stopper for preventing misfit, and the common spring piece supporting these parts, and The above-mentioned misfit preventing component is fixed on the outer peripheral surface of the rectangular connector socket. In this way, it is possible to obtain a structure having a function of preventing misfitting of plugs without substantially changing the design of the existing rectangular connector socket.

In the present invention, the restrictor retracting action piece of the above-mentioned misfit preventing member and the restrictor for preventing misfit are inserted into the plug fitting through the window around the plug pressing spring piece formed by punching the peripheral wall of the plug fitting recess. inside the recess. In this way, the function of preventing mismating of plugs can be added by minimally changing the design of the existing rectangular connector socket.

According to the present invention, the above-mentioned misfit preventing member is bent downward under the front end portion of one of the above-mentioned spring pieces to form the above-mentioned misfit preventing restricting member, and a pair of laterally extending laterally on both sides of the front end portion of the spring piece is formed. The front end of the arm portion is bent downward to form a stopper retracting action piece. In this way, the misfit preventing member is configured in a compact shape, and it is easy to assemble to the small rectangular connector receptacle.

According to the present invention, the plug fitting recess is composed of an outer case made of sheet metal and a contact holding member fixed in the outer case and made of an insulating synthetic resin material. The stopper for preventing misfitting and the misfitting prevention part of the spring piece are integrally formed. In this way, the misfit preventing member can be formed simultaneously with the molding of the outer case, processing is facilitated, and a special assembly process for adding a misfit preventing function is not required, enabling low-cost manufacture.

Description of drawings

FIG. 1 is a perspective view of a first embodiment of a rectangular connector receptacle with a structure for preventing plug misfitting according to the present invention.

Fig. 2(a) is a top view of the rectangular connector socket with a plug misfit prevention structure shown in Fig. 1, and Fig. 2(b) is a front view thereof.

3 is a perspective view of a contact holding member used in the rectangular connector receptacle with a plug misfitting preventing structure shown in FIG. 1 .

Fig. 4 is a perspective view of an outer housing used in the rectangular connector receptacle with a structure for preventing misfitting of plugs shown in Fig. 1 .

Fig. 5 is a perspective view of a misfit preventing member used in the rectangular connector socket with a plug misfit preventing structure shown in Fig. 1 .

FIG. 6( a ) is a plan view of the misfit preventing member used in FIG. 5 , FIG. 6( b ) is a front view thereof, and FIG. 6( c ) is a side view thereof.

Fig. 7 is an explanatory diagram showing the action of the anti-mismatching member when the standard plug is inserted into the rectangular connector socket with the plug mis-mating structure of the present invention, Fig. 7 (a) is its front view, Fig. 7 (b ) is a side view.

Fig. 8 is an explanatory diagram showing the action of the misfit preventing member when a non-standard plug is inserted into the rectangular connector socket with a plug misfit prevention structure of the present invention, and Fig. 8 (a) is a front view thereof, and Fig. 8 ( b) is its side view.

Fig. 9 shows a second embodiment of a rectangular connector socket with a plug misfitting prevention structure according to the present invention, Fig. 9(a) is its top view, and Fig. 9(b) is its front view.

In the picture:

1-Contact holding part, 2-External housing, 2a-Peripheral wall, 3-Misfit preventing part, 4-Plug fitting recess, 5-Body part, 6-Contact holding protrusion, 7-Contact, 8-Solder Soldering terminal part, 9-contact part, 15-dovetail-shaped protrusion, 16-dovetail-shaped concave part, 17-ground terminal, 18-plug spring piece for pressing, 19-window, 20-fitting hole, 25-side plate part , 26-bridge part, 27-spring part, 28-stop piece, 29-elastic locking claw, 30-down stop piece, 35-limiting piece for preventing misfitting, 36-limiting piece retraction action piece, 37-lateral arm portion, 38-tapered edge portion, 40-restriction piece for preventing misfitting, 41-lateral arm portion, A-standard plug, B-non-standard plug.

Detailed ways

Hereinafter, embodiments of the present invention will be described based on Examples shown in the drawings. 1 to 6 show a first embodiment of a rectangular connector receptacle with a structure for preventing misfitting of plugs according to the present invention. The structure of this rectangular connector socket includes: a contact holding member 1 molded from an insulating synthetic resin that holds a predetermined number of contacts; The outer casing 2 is stamped and formed from a sheet metal material; and the misfit preventing member 3 is also stamped and formed from a sheet metal material and fixed to the outer casing 2 .

As shown in FIGS. 1 to 3 , the contact holding member 1 has a main body 5 having the same cross-sectional shape as the opening of the plug fitting recess 4 of the outer case 2 , and is fixed in an arrangement wound around the outer periphery of the main body 5 . The outer case 2 is formed, thereby holding the contact holding member 1 in the outer case 2 . The front side of the main body portion 5 constitutes the innermost portion (bottom surface) of the plug fitting recess 4 .

On the front side of the contact holding member 1 , that is, on the side of the plug fitting recess 4 , a plate-shaped contact holding projection 6 is integrally projected.

A plurality of contacts 7 are integrated on the contact holding member 1 by insert molding. The contact 7 integrally has a soldering terminal portion 8 extending from the back side of the main body portion 5 toward the bottom side, and integrally has a contact portion 9 exposed outside the contact holding protrusion 6 .

As shown in Fig. 1, Fig. 2 and Fig. 4, the outer case 2 is formed by punching a strip-shaped metal plate and bending it so that the cross-sectional shape of the plug fitting recess 4 is cylindrical, and connecting On the bottom surface side of the socket, both ends of the strip are joined to form a dovetail joint, that is, one dovetail-shaped protrusion 15 is fitted into the other dovetail-shaped recess 16 to form an open and closed state.

On the outer case 2, ground terminals 17, 17 that are electrically connected to the ground side of the substrate protrude from both sides of the bottom surface, and are press-fitted on the upper surface by punching a metal plate constituting the outer case 2. The upper surface of the plug is provided with plug springs 18, 18 for anti-off resistance, and the front side and left and right sides of the plug press springs 18, 18 form a continuous window 19.

In the outer case 2, the opening side of the contact holding member 1 is a plug fitting recess 2a, and the peripheral wall 2a and the main body 5 of the contact holding member 1 constitute a flat bottomed cylinder with a rectangular cross section. The inner bottom surface of the plug-fitting recess 4 is shaped so that the above-mentioned contact holding protrusion 6 protrudes toward the opening side.

As shown in Fig. 1, Fig. 2, and Fig. 5 to Fig. 6, the misfit preventing member 3 is formed by punching and bending a metal sheet, and has the configuration of sandwiching the rear end side of the outer case 2. A pair of side plate portions 25, 25; a bridging portion 26 connecting the two side plate portions on the rear end side of the outer casing 2; and a spring integrally formed in a direction extending from the center of the bridging portion 26 to the front side. Part 27.

Each side plate portion 25 is formed with a stop piece 28 abutting against the upper surface of the outer casing 2 on the upper edge of the front side, and a stopper piece 28 that is in contact with the locking hole 20 formed on the outer casing 2 is formed on the lower edge of the front portion. The elastic locking claw 29 engaged with the edge portion is fitted with the anti-misfitting component 3 from the upper side of the outer casing 2, so that the elastic locking claw 29 and the locking hole 20 are locked in a snap-locked state. The lower edge is engaged to prevent the relative outer casing 2 from falling off. In addition, since the elastic locking claw 29 abuts against the front edge of the locking hole 20 , it is prevented from moving rearward relative to the outer case 2 .

The rear edge of the bridging portion 26 is bent downward to form a stop piece 30 , and the stop piece 30 prevents the frontward movement of the wrong fitting prevention member 3 by abutting against the upper rear end of the outer case 2 .

The spring part 27 has restricting pieces 35, 35 for preventing misfitting and retracting action pieces 36, 36 for the restricting pieces; the restricting pieces 35, 35 for preventing misfitting are not inserted into a standard plug corresponding to the rectangular connector socket (hereinafter It is described as a standard plug) but a smaller non-standard plug is prevented from being inserted; the stopper retracting action pieces 36, 36 are used to retract the stopper 35 for preventing misfitting to the plug fitting recess when the above-mentioned standard plug is inserted. 4 outside.

The misfit preventing stoppers 35 , 35 are bent downward from both side edges of the spring piece 27 and inserted into the center portion in the width direction of the plug fitting recess 4 .

As far as the limiter retracting action piece 36, 36 is concerned, the front end of the transverse arm portion 37 extending laterally on both sides of the front end portion of the spring piece 27 is bent downward to form the limiter retracting action piece, and is inserted into the deflector. Positions on both sides of the plug fitting recess 4 . The stopper retracting operation pieces 36 , 36 are formed with a tapered edge portion 38 on the side of the plug fitting recess 4 . The tapered edge portion 38 is formed so that the height of the opening side of the plug fitting recess is substantially equal to or higher than the upper surface of the plug fitting recess 4 , and the back side of the plug fitting recess becomes the height from the inside of the plug fitting recess 4 . The upper surface tapers into the height of the interior.

And, as shown in FIG. 7, when the standard plug A is inserted into the plug fitting recess 4, the tapered edge portion 38 is pushed up by the edge portion of the standard plug, whereby the spring piece portion 27 is bent upward by means of the transverse arm 37. Accordingly, the stopper 35 for preventing misfitting moves from the inside of the plug fitting recess 4 to the retracted position, and the standard plug A can be inserted to a predetermined fitting position.

On the other hand, as shown in FIG. 8 , when inserting a non-standard plug B of a size that does not contact any one of the two restricting member retreating pieces 36, 36, the restricting member retreating acting piece 36 on the non-contact side will not be released from the plug. When the inside of the plug fitting recess 4 is pushed up in the retracting direction, the retraction of both or one of the two misfit preventing restrictors 35, 35 from the plug fitting recess 4 becomes insufficient, and the end surface of the non-standard plug B abuts against it. Insertion actions above that are blocked.

In the above-mentioned example, a pair of misfit preventing stoppers 35, 35 are provided on the root side of one spring piece 27, and the stopper retracting operation piece 36, 36 is supported on the front end side, but in addition In addition, as shown in FIG. 9, the front end of the spring piece 27 may be bent downward to provide a stopper 40 for preventing misfitting, thereby forming lateral arm portions 41, 41 on the root side, and in these lateral arm portions The front ends of 41, 41 form restrictor retracting action pieces 36, 36.

In addition, although not shown, two spring pieces may be provided, and the stopper retracting operation piece and the stopper for preventing misfitting may be provided at the front ends thereof, respectively.

Furthermore, in the above-mentioned example, the restrictor retracting operation piece and the restricting member for preventing misfitting are provided on the misfit preventing member 3 different from the outer case 2, but it is also possible to set the restricting member retracting operation piece and the preventing The misfit stopper is integrally provided on the outer case 2 to constitute a misfit preventing member.

Claims (5)

1. a band prevents the plug rectangular connector socket of embedded structure by mistake, from making the outstanding contact chip that is provided with of inner bottom surface that the cross section is flat rectangle the chimeric recess of plug that bottom tube-like is arranged, and undertaken in the desired rectangular connector socket that is electrically connected of this plug by inserting with the connector plug of the corresponding cross sectional shape of inner peripheral surface shape of the chimeric recess of this plug, it is characterized in that

Possess and prevent the mistake gomphosis part, this prevents that the mistake gomphosis part has: be inserted into the position of the sidepiece of the peristome of being partial to the chimeric recess of above-mentioned plug, and because the insertion of AN connector plug and keep out of the way action movie to the limited part of keeping out of the way the direction side shifting; Keep out of the way action movie with this limited part and compare the center side that is inserted into the chimeric recess of above-mentioned plug, and prevent the chimeric limited part of using of mistake with this limited part is kept out of the way action movie interlock; And support this limited part and keep out of the way action movie and prevent the chimeric shared spring leaf portion of mistake with limited part;

When the AN connector plug that the shape of inserting with the chimeric recess of above-mentioned plug is complementary, limited part is kept out of the way action movie side action outside keeping out of the way the chimeric recess of plug owing to the insertion of this AN connector plug, above-mentionedly prevent that mistake is chimeric and keep out of the way outside the chimeric recess of plug, thereby can insert connector plug with limited part and its interlock; Inserting when keeping out of the way the discontiguous small-sized non-standard connector plug of action movie with above-mentioned limited part, above-mentioned prevent that mistake is chimeric can be to keeping out of the way direction action with limited part, non-standard connector plug prevents to miss the chimeric insertion that stops plug with the limited part butt with above-mentioned.

2. band according to claim 1 prevents the rectangular connector socket of plug mistake embedded structure, it is characterized in that,

The above-mentioned mistake gomphosis part that prevents is by carrying out stamping-out, bending machining and come integrally formed above-mentioned limited part to keep out of the way action movie and prevent that mistake is chimeric with limited part and the shared spring leaf portion that supports these parts to a sheet of metal board, and the above-mentioned mistake gomphosis part that prevents is fixed on the outer peripheral face of this rectangular connector socket.

3. band according to claim 2 prevents the rectangular connector socket of plug mistake embedded structure, it is characterized in that,

The above-mentioned limited part that prevents the mistake gomphosis part kept out of the way action movie and prevent that mistake is chimeric and insert in the chimeric recess of plug by the chimeric recess perisporium of plug being carried out the stamping-out window on every side that the plug form pushes with spring leaf that is shaped with limited part.

4. prevent the rectangular connector socket of plug mistake embedded structure according to each described band of claim 1～3, it is characterized in that,

Above-mentionedly prevent the bending downwards and form the above-mentioned chimeric limited part of using of mistake that prevents under the leading section of an above-mentioned spring leaf portion of mistake gomphosis part, will form limited part to the downward bending of the front end of a pair of horizontal arm of horizontal extension in the leading section both sides of this spring leaf portion and keep out of the way action movie.

5. band according to claim 1 prevents the rectangular connector socket of plug mistake embedded structure, it is characterized in that,

The external shell that the chimeric recess of above-mentioned plug is made of sheet metal and be fixed in this external shell and the contact holding member that is made of insulating properties synthetic resin material constitutes is formed with on the said external housing and has limited part and keep out of the way action movie, prevent that mistake is chimeric and prevent to miss gomphosis part with limited part and spring leaf portion.

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