JP2013080645A - Plug in connector for wiring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plug in connector for wiring having a falling prevention mechanism which properly prevents an attachment plug from falling from a plug receptacle such as an electric outlet with a structure that reduces the number of components.SOLUTION: In a plug in connector for wiring 10 including a falling prevention mechanism which prevents an attachment plug 20 plugged in a plug receptacle 30 from falling from the plug receptacle 30, the falling prevention mechanism includes a protruding part 26 formed so as to protrude at the attachment plug 20 and a groove part 40 having a shape and a size that accommodate the protruding part 26 and forming a trajectory of the movement of the attachment plug 20. The groove part 40 has a bending groove part 40b changing the extension direction to an upward or downward direction at a back side position in the plug in direction P. A recessed part 34 of the plug receptacle 30, a first connection terminal, and a second connection terminal have shapes that allow the attachment plug 20 to shift the plug in direction P in the bending groove part 40b.

Description

  The present invention relates to a wiring plug connector, and more particularly to a wiring plug connector having a drop-off preventing mechanism for preventing a plug plug inserted into a plug receiver from dropping off.

  In general, the wiring plug connector includes an insertion plug for supplying power to an electronic device or the like and a plug receiver into which the insertion plug is inserted. For example, when the plug of an electronic device is inserted into the plug receptacle, specifically, when the outlet plug is inserted into the outlet or the connector plug is inserted into the socket, the cord may get caught in the cord. When a load is applied to the plug when an object falls from the top of the plug, such as a plug or connector plug, the plug is unexpectedly inserted from a plug receptacle such as a socket or socket. May fall off. If the plug is unexpectedly removed from the plug receptacle, the electronic device may be damaged. Therefore, various techniques for preventing the plug from falling off have been proposed.

  Patent Document 1 discloses a plug-in connector for wiring having a mechanism for preventing an outlet plug connected to an outlet from falling off. This plug-in connector for wiring is provided with a drop-off prevention lever so as to be overlapped with the convex terminal in the convex terminal of the outlet plug. This drop-off prevention lever is biased in a direction that protrudes from the convex terminal into the outlet, and in the process of inserting the outlet plug into the outlet, the drop-off prevention lever resists biasing and is stored in the convex terminal. When it is moved and inserted into the outlet, the drop-off prevention lever protrudes into the outlet according to the bias. This prevents the outlet plug from falling off. To remove the outlet plug from the outlet, remove it while pressing the button to release the detachment prevention lever.

  Patent Document 2 discloses a wiring plug connector having a mechanism for preventing a connector plug connected to a socket from falling off. In this wiring connector, an arm portion that rotates so as to protrude in the pulling-out direction of the connector plug is provided in the vicinity of the socket. In a state where the connector plug is connected to the socket, the arm portion is rotated so as to protrude in the pulling direction of the connector plug, and the arm portion is locked to the connector plug, so that the connector plug is prevented from falling off.

JP-A-11-154554 JP 2005-38785 A

  According to the plug-in connector for wiring disclosed in Patent Document 1, it is necessary to provide a drop-off prevention lever so as to overlap the convex terminal in the convex terminal of the outlet plug. Further, it is necessary to form a structure in which the convex terminal is urged in a direction protruding into the outlet, and to form a structure in which the urging of the drop-off prevention lever is released. Therefore, the number of members increases, the structure becomes complicated, and the manufacturing cost may increase. Furthermore, it is assumed that the possibility of failure increases as the number of members increases and the structure becomes complicated.

  According to the plug-in connector for wiring in Patent Document 2, since it is necessary to provide an arm part that rotates so as to protrude in the pulling-out direction of the connector plug in the vicinity of the socket, the number of members is the same as in Patent Document 1. It is assumed that the structure will increase and the structure will become complicated, increasing the manufacturing cost and increasing the possibility of failure. Furthermore, since it is necessary to form an arm part according to the shape of a connector plug, it will lack versatility. Moreover, since the arm portion is provided in the vicinity of the socket, there is a concern that the structure around the socket is complicated.

  The present invention has been made in view of the above-described problems, and has an object of having a drop-off prevention mechanism that appropriately prevents a plug from dropping off from a plug receptacle such as an outlet with a configuration in which the number of members is suppressed. It is to provide a plug-in connector for wiring.

In order to achieve the above object, a wiring plug connector according to the invention of claim 1 is provided.
Electrically connected to the first conductor for connection of the plug with the insertion plug having the first conductor for connection and the concave portion provided so that the insertion plug can be inserted and the insertion plug being inserted. In the plug connector for wiring, comprising: a plug receiver having a second conductor for connection, and a drop-off preventing mechanism for preventing the plug from dropping off in the plug-in state.
The drop-out prevention mechanism for this wiring connector is
A protrusion formed to protrude outward from the side of the plug,
Formed in the plug receptacle with a shape and size that can accept the protrusion, and extends from the opening edge of the plug receptacle to the back side in the insertion direction of the insertion plug to form the movement path of the insertion plug And a groove portion to be
The groove is
It has a bent groove part whose extension direction is changed upward or downward at a position on the back side in the insertion direction,
Plug receptacle
The concave portion is formed having a shape that allows a change in the insertion direction of the insertion plug in the bent groove portion,
The first terminal for connection and the second terminal for connection are
Formed with a shape allowing the change of the insertion direction in the bent groove portion of the insertion plug while being connected to each other,
It is characterized by that.

  According to this configuration, since the groove is formed in a shape and size that can receive the protrusion, the plug is formed by the groove formed in a track shape along the insertion direction of the plug. Guided in the insertion direction. The insertion plug is prevented from being unexpectedly detached from the plug receptacle by engaging the protrusion with the bent groove whose extension direction is changed upward or downward. The engagement between the protrusion of the plug and the bent groove of the groove is formed in a shape that allows the recess of the plug receiver, the first terminal for connection, and the second terminal for connection to change the insertion direction of the plug. Therefore, it can be easily achieved. Therefore, it is not necessary to provide a complicated structure such as a drop-off prevention lever or an arm part near the socket used in the conventional plug connector for wiring, and a protrusion is formed on the plug and a groove is formed on the plug receiver. With the configuration in which the number of members is reduced, it is possible to easily prevent the plug plug from being accidentally dropped from the plug receptacle.

  The wiring plug connector according to claim 2 is the wiring plug connector according to claim 1, wherein the protrusions of the plug are formed on both sides of the plug. And

  According to this configuration, since the protruding portions are formed on both side portions of the insertion plug, the insertion plug can be inserted in the insertion direction in a stable state.

The wiring plug connector according to claim 3 is the wiring plug connector according to claim 1 or 2,
The groove formed in the plug receiver
As it moves from the opening edge of the plug receptacle to the back side in the insertion direction, it is formed to be gradually inclined downward,
The bent groove of the groove is
It is characterized by the fact that the extension direction is changed upward.

  According to this configuration, the groove portion guides the plug gradually inclined downward as it moves to the back side in the insertion direction, and the bent groove portion of the groove portion extends upward. The insertion plug is held in the horizontal direction by changing the insertion direction at the bent groove. Therefore, for example, even if a load acts in the direction of pushing down the insertion plug due to an object falling on the insertion plug from above the insertion plug, the projection is locked to the bent groove and the movement of the projection is restricted. This prevents the plug from being accidentally dropped from the plug receptacle.

The plug-in connector for wiring according to claim 4 is the plug-in connector for wiring according to any one of claims 1 to 3,
The plug receptacle for this wiring connector is
The concave portion is formed to gradually expand from the opening edge toward the back side in the insertion direction,
The first terminal for connection and the second terminal for connection are
Either one is formed as a concave terminal or a convex terminal inserted into the concave terminal, the other is formed as a convex terminal or a concave terminal connected to one terminal,
The concave terminal
Arranged in the insertion groove formed along the insertion direction of the convex terminal from the insertion port opened larger than the size of the tip portion in the insertion direction of the convex terminal,
It is characterized by that.

  According to this configuration, the concave portion is formed so as to gradually expand toward the back side in the insertion direction, and the insertion groove is formed larger than the size of the tip of the convex terminal in the insertion direction. With the convex terminal inserted, the insertion direction of the insertion plug can be easily changed by the bent groove portion in the groove portion of the plug receiver.

  According to the present invention, there is no need to provide a complicated structure such as a drop-off prevention lever or an arm portion in the vicinity of the socket, which has been used in a conventional plug-in connector for wiring. Even if the plug is pulled in the direction of pulling out the plug or the pulling force is unexpectedly applied in the pulling direction of the plug, the plug Will not accidentally fall out of the plug receptacle. As a result, damage to the electronic device and data used in the electronic device is prevented.

It is a figure explaining the outline of the plug-in connector for wiring which concerns on this Embodiment. Similarly, it is a figure explaining the outline of the insertion plug which concerns on this Embodiment. FIG. 3 is a view as seen from an arrow A in FIG. 2. It is a figure explaining the outline of the plug receptacle concerning this embodiment. It is a figure explaining the outline of the state which inserts the insertion plug which concerns on this Embodiment in a plug receptacle. Similarly, it is a figure explaining the outline of the state which inserts the insertion plug which concerns on this Embodiment in a plug receptacle. Similarly, it is a figure explaining the outline of the state which inserts the insertion plug which concerns on this Embodiment in a plug receptacle.

  Next, an embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a case will be described as an example where a plug receiver is provided in an electronic device, and an insertion plug is inserted into the plug receiver to supply power to the electronic device.

  FIG. 1 is a diagram for explaining an outline of a wiring plug connector 10 according to the present embodiment. As shown in the figure, the wiring plug connector 10 includes a connector plug 20 serving as a plug and a socket 30 serving as a plug receiver having a recess 34 that is recessed so that the connector plug 20 can be inserted into the electronic device 100. Prepare. Further, the wiring plug connector 10 includes a protrusion 26 that constitutes a drop-off prevention mechanism that prevents the connector plug 20 from dropping in a state where the connector plug 20 is inserted into the socket 30, and the protrusion 26 An engaging groove 40 is provided.

  In the present embodiment, the protrusions 26 constituting the drop-off prevention mechanism are formed on both sides of the connector plug 20 so as to protrude outward from both sides of the connector plug 20. The groove portion 40 that engages with the protrusion portion 26 is formed to have a shape and a size capable of receiving the protrusion portion 26 along the side portion of the socket 30, and from the opening portion 32 that becomes the opening edge portion of the socket 30. The connector plug 20 indicated by an arrow P extends to the back side in the insertion direction. The groove portion 40 engages with the protruding portion 26 as the connector plug 20 is inserted, guides the connector plug 20 to the back side in the insertion direction P, and constitutes a trajectory for movement of the connector plug 20 in the insertion direction P. It is formed to do. Furthermore, the groove part 40 is formed by changing the extending direction upward or downward in the insertion direction P in the present embodiment, and upward in the present embodiment.

  Next, a specific configuration of each part of the wiring plug connector 10 in the present embodiment will be described.

  FIG. 2 is a diagram for explaining the outline of the connector plug 20. As shown in the figure, the connector plug 20 is provided at an end portion of the wiring cord 110 and has a main body portion 22 serving as a portion for gripping the connector plug 20 and an insertion portion 24 formed to protrude from the main body portion 22. Formed. The insertion portion 24 includes an upper portion 24A, a bottom portion 24B facing the upper portion 24A, and both side portions 24C that connect the upper portion 24A and the bottom portion 24B. It is formed in a hexagonal shape as viewed from the front having the portion 24D.

  In the side portion 24C, in the present embodiment, columnar projections 26 projecting outward from the side portions 24C are formed at positions opposed to the side portions 24C, respectively. In the present embodiment, three insertion openings 28 are formed in the front portion 24D, and the insertion openings 28 are formed so as to open larger than the distal end portion 36a in the insertion direction I of the convex terminal 36 described later. An insertion groove 28 a is formed along the direction from the insertion port 28 toward the main body 22, that is, along the insertion direction I of the convex terminal 36. A concave terminal 28b serving as a first connecting conductor is provided along the insertion groove 28a. The concave terminal 28b is formed by arranging plate-like metal members to face each other with a gap.

  3 is a view taken in the direction of arrow A in FIG. As shown in the drawing, the insertion groove 28a gradually decreases in height as it goes from the insertion port 28 toward the main body 22 side, that is, as the insertion groove 28 moves from the insertion port 28 toward the main body portion 22 side, the upper end edge 29a of the insertion groove 28a. Is inclined so as to gradually approach the lower end edge 29b of the insertion groove 28a. In FIG. 3, the concave terminal 28b is omitted for simplification of illustration.

  FIG. 4 is a diagram for explaining the outline of the socket 30. As shown in the figure, the socket 30 includes an opening 32 that is formed in a hexagonal shape in front view following the shape of the front portion 24D of the insertion portion 24 of the connector plug 20 and opens to the outside. A recess 34 is provided that is recessed along the insertion direction P of the connector plug 20. The recess 34 is formed in a shape that allows the connector plug 20 to change its direction of insertion P.

  The opening 32 includes an upper edge 32A, a bottom edge 32B facing the upper edge 32A, and both side edges 32C connecting the upper edge 32A and the bottom edge 32B. The recess 34 includes an upper wall 34A that extends horizontally from the upper edge 32A of the opening 32, a side wall 34C that is continuous with the upper wall 34A and extends from both side edges 32C of the opening 32 toward the insertion direction P, The bottom wall 34B is formed having a bottom wall 34B that is continuous with the both side walls 34C and that inclines and extends in a direction of gradually separating from the top wall 34A from the bottom edge 32B of the opening 32 toward the insertion direction P.

  Further, a rear wall 34D is formed at the rear edge in the insertion direction P of the upper wall 34A, the bottom wall 34B, and the both side walls 34C, and a concave shape is formed in the rear wall 34D through the insertion port 28 of the connector plug 20. A convex terminal 36 serving as a second connecting conductor inserted into the terminal 28b is formed.

  Grooves 40 that engage with the protrusions 26 of the connector plug 20 are formed on both side walls 34 </ b> C of the recess 34 of the socket 30. In the present embodiment, the groove 40 is formed continuously from the guide groove 40a and the guide groove 40a for guiding the connector plug 20 to the back side in the insertion direction P in parallel with the bottom wall 34B of the socket 30. It is formed to have a bent groove portion 40b that bends upward from 40a and guides the protrusion 26 of the connector plug 20 upward. A locking portion 42 that locks the protruding portion 26 of the connector plug 20 is formed at the upper end portion of the bent groove portion 40 b of the groove portion 40.

  Next, a state in which the connector plug 20 according to the present embodiment is inserted into the socket 30 will be described with reference to FIGS. 5A, 6A, and 7A, the convex terminal 36 is omitted for simplification of illustration.

  As shown in FIG. 5A, first, the connector plug 20 is inserted from the opening 32 of the socket 20 so that the bottom 24B of the insertion portion 24 of the connector plug 20 is along the bottom wall 34B of the recess 34 of the socket 30. Thus, the protrusion 26 is engaged with the first guide groove 40 a of the groove 40. When the connector plug 20 is subsequently inserted in the insertion direction P, the protrusion 26 is guided to the back side in the insertion direction P by the guide groove 40 a of the recess 34.

  At this time, as shown in FIG. 5B, the convex terminal 36 of the socket 30 is horizontally inserted into the insertion groove 28a through the insertion port 28 of the connector plug 20, and is provided in the insertion groove 28a. It is inserted horizontally in the gap between the concave terminals 28b.

  As shown in FIG. 6A, when the connector plug 20 is inserted to the insertion position B, the upper end portion of the front portion 24D of the insertion portion 24 of the connector plug 20 is connected to the rear wall 34D of the wall portion 34 of the socket 30. Abut. In this state, the projecting portion 26 is located at the terminal end portion of the guide groove portion 40 a of the groove portion 40, that is, on the back side in the insertion direction P.

  At this time, as shown in FIG. 6B, the convex terminal 36 of the socket 30 inserted horizontally in the insertion groove 28a of the connector plug 20 has an upper end edge of the convex terminal 36 at the upper end edge of the insertion groove 28a. It is inserted along the entire groove depth direction of the insertion groove 28a along 29a and inserted into the gap of the concave terminal 28b.

  In this state, when the connector plug 20 is pushed down toward the lower side of the electronic device 100 indicated by the arrow L, as shown in FIG. 7A, the protruding portion 26 is bent groove portion 40b bent upward from the guide groove portion 40a. Are guided to the locking portion 42, and the protrusion 26 is locked to the locking portion 42.

  As a result, the connector plug 20 is fitted and held in the socket 30. At this time, as shown in FIG. 7B, the convex terminal 36 of the socket 30 is held in a state of being inserted in the horizontal direction with respect to the concave terminal 28 b of the connector plug 20.

  Thus, according to the plug-in connector 10 for wiring according to the present embodiment, the connector 26 is engaged with the protruding portion 26 of the connector plug 20 and the groove portion 40 of the socket 30 and inserted into the insertion position B. When the main body portion 22 of the plug 20 is pushed down in the downward direction L of the electronic device 100, the protruding portion 26 is guided above the groove portion 40 by the bent groove portion 40 b of the groove portion 40 and locked to the locking portion 42. Thereby, even if the connector plug 20 is pulled in the direction in which the connector plug 20 is pulled out, the connector plug 20 does not fall out of the socket 30.

  On the other hand, even if a load in the direction of pushing up the concave terminal 28b side acts on the main body portion 22 of the connector plug 20 from above the connector plug 20, the protruding portion 26 is locked to the locking portion 42 and the protruding portion 26 is Since the upward movement is restricted, the connector plug 20 is not dropped from the socket 30.

  Therefore, the connector plug 20 is prevented from unexpectedly dropping from the socket 30, and damage to the electronic device 100 and data used in the electronic device 100 is prevented.

  In other words, since it is not necessary to provide the drop-off prevention lever and the arm portion near the socket used in the conventional plug-in connector for wiring, the manufacturing cost is suppressed with a simple configuration with a reduced number of members. It is possible to easily prevent the plug from falling off the socket.

  When the connector plug 20 is pulled out from the socket 30, the main body portion 22 is moved so as to push down the concave terminal 26 b of the connector plug 20, so that the protruding portion 26 locked to the locking portion 42 is moved downward by the bent groove portion 40 b. As a result of the guidance, the locking between the protruding portion 26 and the locking portion 42 is released.

  The connector plug 20 can be pulled out of the socket 30 by releasing the locking between the protruding portion 26 and the locking portion 42. In this state, when the connector plug 20 is pulled from the socket 30 in the pulling direction, the connector plug 20 can be easily pulled out from the socket 30.

  The concave portion 34 of the socket 30 has a bottom wall 34B that is inclined in a direction gradually separating from the upper wall 34A from the bottom edge 32B of the opening portion 32 toward the insertion direction P. Therefore, the bottom portion 24B of the connector plug 20 is connected to the socket 30. While the connector plug 20 is inserted into the socket 30 along the bottom wall 34B, the convex terminal 36 is horizontally aligned with the concave terminal 28b from the insertion port 28 formed to be opened larger than the tip 36a of the convex terminal 36. Can be inserted in the direction. As a result, the change of the insertion angle in the vertical direction of the connector plug 20 is allowed, and the protrusion 26 can be guided and locked to the locking portion 42 by the change of the insertion angle.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning of invention. In the above embodiment, the case where the wiring plug connector 10 is configured by the connector plug 20 having the concave terminal 26b and the socket 30 having the convex terminal 36 has been described. The wiring connector may be configured by a socket having a concave portion provided in the insertion direction and having a concave terminal formed on the back wall of the concave portion. In this case, the drop-off prevention mechanism can be formed with the same configuration as in the above embodiment.

  In the above-described embodiment, the case where the protruding portion 26 is formed in a cylindrical shape has been described. However, for example, the protruding tip may be formed in a spherical shape. That is, the protrusion and the groove that engages with the protrusion are not limited to a specific shape, but may be any shape that can engage with each other.

10 Wiring connector 20 Connector plug (plug)
24 Insertion part 26 Protrusion part 28 Insertion slot 28a Insertion groove 28b Concave terminal (first terminal for connection)
30 socket (plug receptacle)
32 Opening 34 Recess 34A Top wall 34B Bottom wall 36 Convex terminal (second terminal for connection)
40 Groove 40a Guide groove 40b Bent groove 42 Locking part I Insertion direction P Insertion direction

Claims (4)

An insertion plug having a first connecting conductor, and a first conductor for connection of the insertion plug having a recess recessed to allow insertion of the insertion plug and the insertion plug being inserted; A wiring plug connector comprising: a plug receiver having a second conductor for connection that is electrically connected; and a drop-off preventing mechanism that prevents the plug from falling off when the plug is inserted. In
The drop-off prevention mechanism is
A protrusion formed to protrude outward from the side of the plug,
The protrusion has a shape and size capable of receiving the protrusion, and is provided in the plug receiver, and extends from the opening edge of the plug receiver to the back side in the insertion direction of the insertion plug. A groove portion that constitutes a trajectory of movement,
The groove is
It has a bent groove part whose extension direction is changed upward or downward at the back side position in the insertion direction,
The plug receptacle is
The recess is formed with a shape that allows a change in the insertion direction of the insertion plug in the bent groove,
The first terminal for connection and the second terminal for connection are
Formed with a shape allowing the change of the insertion direction in the bent groove portion of the insertion plug in a state of being connected to each other,
Plug connector for wiring, characterized in that. The protrusion is
The wiring connector according to claim 1, wherein the wiring connector is formed on both sides of the plug. The groove is
As it moves from the opening edge of the plug receptacle to the back side in the insertion direction, it is gradually inclined downward and formed,
The bent groove is
3. The wiring connector according to claim 1, wherein the extension direction is changed upward. The plug receptacle is
The recess is formed to gradually expand from the opening edge toward the back side in the insertion direction,
The first terminal for connection and the second terminal for connection are
Either one is formed as a concave terminal or a convex terminal inserted into the concave terminal, the other is formed as the convex terminal or concave terminal connected to one terminal,
The concave terminal is
Arranged in the insertion groove formed along the insertion direction of the convex terminal from the insertion port opened larger than the size of the tip of the convex terminal in the insertion direction,
The plug-in connector for wiring according to any one of claims 1 to 3.

Images