JP4487747B2 - Plug connector - Google Patents

Description

  The present invention relates to a plug connector for electrical connection, and more particularly to improvement of a plug connector in which a lock mechanism is integrally provided in a metal shield case.

In office automation equipment such as personal computers and home appliances, electrical signals are transmitted and received by various cables. Therefore, for example, for electrical connection between a personal computer and peripheral devices, the connector of the connection cable is connected to the connector on the device side. It is done by that. In this case, the connector of the connection cable is preferably mechanically locked to the device-side connector for the purpose of preventing inadvertent dropping or the like, and connectors having various locking mechanisms have been developed ( For example, see Patent Documents 1 to 4).
Japanese Patent Laid-Open No. 10-199636 Japanese Patent Laid-Open No. 9-289058 Japanese Patent Laid-Open No. 6-68916 On the other hand, in an I / O cable or the like of an OA device, when connecting to the device via a connector, it is necessary to take measures against an electrical failure so that external noise or the like does not enter the connector. Yes, covering the internal core wire led out from the cable with a metal shield case (see, for example, Patent Document 5). In view of these circumstances, the applicant of the present application has studied to provide a lock mechanism on the shield case. The shield case shown in FIGS. 4A and 4B is one of them. A shield case 101 shown in FIG. 4 is obtained by processing a single metal plate, and a predetermined space is formed by a top plate 102 and side plates 103 and 104 bent around the top plate 102, and a core wire is formed therein. Is housed.

  In addition, the top plate 102 is bent so that a predetermined step is formed, and the connecting pieces 105 and 106 whose distal ends are arranged on both sides of the top plate 102 and the locking claws 107 and 108 at the distal ends thereof are provided. Have. The connecting pieces 105 and 106 are formed in a state in which they can be elastically displaced by the elastic force of the metal plate itself. By pressing this part against the elastic force, the locking claws 107 and 108 are moved downward. Pressed down to release the locked state. When not operated, the locking claws 107 and 108 are urged upward by the elastic force of the connecting pieces 105 and 106, and the locked state is maintained.

  By the way, in the shield case 101 having the above-described configuration, since the displacement amount of the connecting pieces 105 and 106 to be pressed is not restricted at all, the connecting pieces 105 and 106 are excessively pressed down during the pressing operation and are stored in the inner space of the shield case 101. There is a possibility of damaging the internal core wire, such as squeezing or scratching the internal core wire. If the internal core wire is damaged, it may lead to a serious failure, which is a big problem.

  The present invention has been proposed in view of such a conventional situation, and an object of the present invention is to provide a plug connector that does not damage an internal core wire during unlocking operation while securing a shielding function in a shielding case. And

To achieve the foregoing objects, the plug connector of the present invention includes a connector portion for connecting phase Tekata socket connector electrically, provided so as to surround the connector, and is connected to the connector portion a shield case for accommodating the inner core of the cable, is disposed on the top surface side of the connector portion, a plug connector and a locking pawl for locking the connection with the mating socket connector, the shield case, the A pressing operation portion that extends obliquely downward from the top plate of the housing portion for housing the inner core wire of the cable to the connector portion side and is elastically displaced to displace the locking claw below the top surface of the connector portion; An operation button that presses the pressing operation unit and elastically displaces the pressing operation unit is disposed above the pressing operation unit, and the pressing operation unit is disposed below the pressing operation unit. Characterized in that a separator plate for regulating sex displacement.

  In the plug connector according to the present invention, the inner core wire is accommodated in a shield case formed of a metal plate, and measures against electrical failure are taken so that noise from the outside does not enter the connector. Further, locking and unlocking of the opposing connector are performed by the locking claws provided in the shield case.

  In the plug connector of the present invention, the shield case is provided with a separator plate for restricting the elastic displacement amount of the connecting piece. This partition plate regulates the amount of elastic displacement of the connecting piece when the connecting piece is pressed when unlocked. That is, when there is the partition plate, when the connecting piece is pushed down, it is pushed down to a position where it comes into contact with the partition plate, but cannot be pushed down any further. Therefore, if the internal core wire led out from the cable is accommodated in a space formed below the partition plate, contact with the internal core wire due to the depression of the connecting plate is avoided, and damage to the internal core wire is avoided. .

  According to the plug connector of the present invention, it is possible to provide a highly reliable plug connector without damaging the inner core wire during the unlocking operation. In addition, the plug connector of the present invention has necessary and sufficient basic performance such as providing a lock mechanism and measures against electrical failure by a shield case. It is possible to realize a high socket connector.

  Hereinafter, specific embodiments of a plug connector to which the present invention is applied will be described with reference to the drawings.

  FIG. 1 shows the external shape of a plug connector. As shown in FIG. 1, the plug connector 1 is configured such that a connector portion 3 is accommodated in a plastic case 2, and an inner core wire of a cable 4 is connected to the connector portion 3. The plug connector 1 is coupled to a mating socket connector to be combined, such as a connector provided on the device side, for electrical connection.

  In the plug connector 1, the connector portion 3 has a fitting opening 5 that is opened in a rectangular shape, and a large number of contacts 6 are arranged on the inner bottom surface for electrical connection with the mating socket connector. Although not shown, each contact 6 is connected to a corresponding internal core wire, and signals are exchanged through the contact 6 and the internal core wire.

  Further, the plug connector 1 of the present embodiment is provided with a metal shield case 7 for protecting the inner core wire from an electrical failure so as to surround the connector portion 3. The part is provided with a pair of locking claws 8 and 9, and these locking claws 8 and 9 are configured to function as a locking mechanism. The plastic case 2 is provided with an operation button 2a for operating the lock mechanism. By pressing the operation button 2a, the locked state by the locking claws 8 and 9 is released. .

As shown in FIGS. 2A and 2B, the shield case 7 is formed by processing a single metal plate. The top plate 11 covers the upper part of the internal core wire, and the periphery of the top plate 11. The side plates 12, 13, 14, 15 are formed so as to fall on the outside, and the internal core wire is accommodated in the space formed by the top plate 11 and the side plates 12, 13, 14, 15. It is protected from electrical disturbances to prevent noise from entering.

  The shield case 7 not only serves as a shield but also includes a locking mechanism for the counterpart socket connector, and supports the locking claws 8 and 9 and the locking claws 8 and 9 as members therefor. A pair of connecting pieces 16 and 17 are provided.

  Here, the connecting pieces 16 and 17 include the pressing operation parts 16a and 17a extending obliquely downward from the top plate 11, the bending parts 16b and 17b orthogonal to the pressing operation parts 16a and 17a, and the plate surfaces thereof being the pressing operation parts 16a and 17a. It consists of tip portions 16c and 17c which are orthogonal to the bent portions 16b and 17b and are integrally formed with locking claws 8 and 9 at the tips. And since each press operation part 16a, 17a of the connection pieces 16 and 17 is formed with the metal plate, it can be elastically displaced, and by pressing the operation button 2a provided in the said plastic case 2, it presses. This portion is elastically displaced and pushed down, and at the same time the locking claws 8 and 9 are pushed down to release the locked state.

  In addition to the connecting pieces 16 and 17, the shield case 7 is provided with partition plates 18 and 19 for restricting the amount of elastic displacement of the connecting pieces 16 and 17. These partition plates 18 and 19 are also formed by bending a metal plate constituting the shield case 7, and are formed by extending and bending the side plates 12 and 13, and the connecting pieces 16 and 17 are formed. It is folded in the form of entering below.

  The partition plates 18 and 19 are formed so as to be wide while the connecting pieces 16 and 17 are formed narrow and easily elastically displaced by a relatively small pressing force. By being formed orthogonally, it has sufficient rigidity to restrict the elastic displacement of the connecting pieces 16 and 17.

  When the plug connector 1 having the above-described configuration is inserted into the counterpart socket connector, electrical connection is made via the contact 6. At the time of insertion, the locking claws 8 and 9 are pushed down against the elastic force of the connecting pieces 16 and 17, and then released from the depression, and the locking claws 8 and 9 are locked to the mating socket connector side. Will be locked. In this state, the plug connector 1 is not inadvertently detached from the counterpart socket connector.

  On the other hand, when the lock is released, the operation button 2a provided on the plastic case 2 is pressed. Then, the connecting pieces 16 and 17 are elastically displaced and pushed down, and the locking claws 8 and 9 are pushed down accordingly, so that the locked state is released.

  At this time, since the amount of elastic displacement of the connecting pieces 16 and 17 and the partition plates 18 and 19 are regulated, the connecting pieces 16 and 17 are not pushed down more than necessary, and the internal core wires accommodated therein are not damaged. FIG. 3 shows a state where the elastic displacement amounts of the connecting pieces 16 and 17 by the separator plates 18 and 19 are restricted. FIG. 3A shows a locked state, that is, a state in which the connecting pieces 16 and 17 are not pressed. In this state, a predetermined gap is provided between the connecting pieces 16 and 17 and the partition plates 18 and 19. ing. The connecting pieces 16 and 17 can be pushed down by the gap, and even if the connecting pieces 16 and 17 are pushed down further, as shown in FIG. 3B, the pressing operation portions 16a and 17a of the connecting pieces 16 and 17 are separated from each other. 18, 19, and further deformation (pressing down) is restricted.

Therefore, if the inner core wire led out from the cable 4 is accommodated in the space below the partition plates 18 and 19, the inner core wire is not contacted even when the connecting pieces 16 and 17 are pushed down, and the inner core wire is damaged. Is reliably prevented.

It is a perspective view which shows the external shape of a plug connector. The external appearance shape of a shield case is shown, (a) is the perspective view seen from diagonally upward, (b) is the perspective view seen from diagonally downward. FIG. 5A shows a restricted state of the connecting piece, FIG. 5A is a side view showing a non-pressed state of the connecting piece, and FIG. An example of the shield case without a partition plate is shown, (a) is a perspective view seen from diagonally upward, (b) is a perspective view seen from diagonally downward.

Explanation of symbols

1 Plug connector, 2 plastic case, 2a operation button, 3 connector part, 4
Cable, 5 Mating port, 6 contacts, 7 Shield case, 8, 9 Locking claw, 11 Top plate, 12, 13, 14, 15 Side plate, 16, 17 Connecting piece, 18, 19 Separating plate

Claims (2)

A phase Tekata socket connectors electrically connected to the connector portion, provided so as to surround the connector portion, and a shield case for accommodating the inner core of the cable connected to the connector portion, the top of the connector portion A plug connector provided on the surface side and provided with a locking claw that locks the connection with the counterpart socket connector ,
The shield case extends obliquely downward from the top plate of the housing portion that houses the inner core wire of the cable to the connector portion side, and is elastically displaced to displace the locking claw below the top surface of the connector portion. Having a pressing operation part,
An operation button that presses the pressing operation unit and elastically displaces the pressing operation unit is disposed above the pressing operation unit.
A plug connector, characterized in that a partition plate for restricting an elastic displacement amount of the pressing operation unit is disposed below the pressing operation unit.   The plug connector according to claim 1, wherein the shield case is formed by processing a single metal plate, and the separator plate is formed by bending the shield case.

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