Abstract:
An electrical connector including a holding device, that has a recess and at least one conductive pad disposed therein, and a socket that has at least one conductive pin configured to engage at least one of the conductive pads when the socket is inserted into the holding device and a port configured to receive an interface of an external device. The shape of the socket is complementary to the shape of the recess. A first retaining element included in the holding device and a second retaining element included in the socket are together releasably maintain interconnection between the holding device and the socket.

Description:
CROSS REFERENCE TO RELATED APPLICATION 
     This application is a non-provisional that claims a benefit to U.S. Provisional Patent Application No. 62/100,972, entitled “Pop-Out Socket Connector” that was filed on Jan. 8, 2015. The contents of U.S. 62/100,972 are hereby incorporated by reference herein in their entirety. 
    
    
     BACKGROUND 
     Electrical connectors, such as those facilitating power or data transfer between two devices, are often intolerant of separating forces on axes other than those normal to the connection between them. Components such as connectors and sockets are subject to potential damage by virtue of the rigidity of the components and the tight frictional fits between them. With technology advancing to the point where electronic devices are so easily transportable, there is increased need to protect delicate connection components from instances where a user mistakenly attempts to separate two devices without first severing the connection between them. The intolerance of connectors and sockets to non-normal forces can easily result in bent or broken components in need of repair or replacement. 
     Some prior art electrical connectors attempted to solve these issues by joining the connector ends magnetically. U.S. Pat. No. 7,056,127, incorporated herein by reference in its entirety, discloses the use of an adaptor to be retained in a traditional electrical connector, wherein the adaptor was further magnetically joined to a plug body and a cable connected to an external device. 
     U.S. Pat. No. 4,719,549 and U.S. Pat. No. 4,311,456, also incorporated herein by reference in their entireties, eschewed the frictional fit between electrical connectors in favor of a spherical connector magnetically joined to a complementary recessed socket. 
     Other prior art electrical connectors have disclosed adaptor devices which establish a releasable mechanical connection between connectors and sockets. US 2013/0017703, incorporated herein by reference in its entirety, discloses such a device. 
     What is desired therefore is a socketed connector that itself limits the damage inflicted on connection components when forces are exerted on them from an axis not normal to the socket. 
     BRIEF SUMMARY OF THE INVENTION 
     The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the invention will be apparent from the description and drawings, and from the claims. 
     The present disclosure provides for a socket connector system including a holding device and releasable socket. In some embodiments, an electrical connection is provided between the holding device and releasable socket. In some embodiments, the holding device and socket assembly includes a retaining element that enables the socket to be inserted and retained within the holding device, but also easily removed through application of a force in any axis. In some embodiments, a port is included on the socket, thus enabling an external device to be connected to the socket and subsequently through the holding device to a printed circuit board. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  shows a side view of an embodiment of a pop-out socket connector. 
         FIG. 2  shows a top view of the pop-out socket connector shown in  FIG. 1 . 
         FIG. 3  shows a front view of a further embodiment of the pop-out socket connector shown in  FIG. 1 . 
         FIG. 4  shows a side view of an embodiment having a raised ring on the socket. 
     
    
    
     DETAILED DESCRIPTION 
     Disclosed herein is a system that provides a releasable connection between an external device and a printed circuit board. 
     In one embodiment, as shown in  FIG. 1 , the system includes a holding device  1  and a socket  2 . Holding device  1  includes a recess  6  for accepting socket  2  into holding device  1 . In some embodiments, recess  6  and socket  2  are complementary shapes.  FIG. 1  depicts one embodiment where recess  6  and socket  2  are complementary hemispherical shapes, although any pair of complementary shapes may be suitable for use in the system of the present disclosure. In some embodiments, the bodies of holding device  1  and socket  2  are composed primarily of plastic. 
     In some embodiments, an electrical connection is provided between holding device  1  and socket  2  through contact pads  100  and connector pins  10 . In some embodiments, the contact pads  100  are further electrically connected to a printed circuit board  110  or other electrical system.  FIG. 2  shows an embodiment wherein 4 pairs of contact pads  100  and connector pins  10  are employed to provide electrical connection between holding device  1  and socket  2 , though other embodiments may provide any suitable number of contact pads  100  and connector pins  10  to establish connection between an external device and a printed circuit board, as will be discussed in greater detail below. In some embodiments, connector pins  10  are spring mounted. In some embodiments, the printed circuit board and holding device may be disposed on an aircraft, automobile, laptop, or any other location which may benefit from having a connection with an external device. 
     Holding device  1  and socket  2  are mechanically joined together using a retaining element. In some embodiments, holding device  1  and socket  2  are mechanically joined together using complementary ring structures  4  and  5  included on socket  2  and holding device  1  respectively. In the exemplary embodiment shown in  FIG. 1 , a raised ring  5  is included about a perimeter of holding device  1 . A recessed ring  4  is included about a perimeter of socket  2 . Raised ring  5  and recessed ring  4  are configured to engage one another when socket  2  is inserted into holding device  1 . Raised ring  5  and recessed ring  4  are also configured so that when engaged, electrical contact is achieved between contact pads  100  and connector pins  10 . 
     As shown in  FIG. 2 , the location of raised ring  5  is not limited to holding device  1  and the location of recessed ring  4  is not limited to socket  2 . In some embodiments, raised ring  5  is included on socket  2  and recessed ring  4  is included on holding device  1 . The location, orientation, shape, and size of raised ring  5  and recessed ring  4  are a matter of design choice, although in some embodiments the location, orientation, shape, and size of raised ring  5  and recessed ring  4  must enable a releasable fit between holding device  1  and socket  2 , as discussed in greater detail below. In some embodiments, the releasable fit between socket  2  and holding device  1  is provided by retaining clips (not shown). In some embodiments, the raised ring is mounted on at least one positively biased spring (not shown). 
     As shown in  FIGS. 1-3 , a port  3  is included on socket  2 . In some embodiments, port  3  is disposed on a surface of socket  2  opposite holding device  1 , such that when socket  2  is inserted into holding device  1 , port  3  is open to receiving a connector. In some embodiments, port  3  is configured to accept a connector to an outside device. When all components are assembled, the system provides electrical connection from an external device through port  3  to socket  2  to holding device  1  to a printed circuit board. In some embodiments, port  3  is configured to facilitate connection of the desired external device. In some embodiments, port  3  is a USB connector, a power connector, a memory card connector, an audio connector, a video connector, and the like. In some embodiments, port  3  is compatible with the standard connector for the connection desired between the external device and the printed circuit board, e.g. port  3  is a standard USB port, a standard 3.5 mm audio jack, and the like. The advantage is that users will not need system specific adaptors to connect their external devices to the system of the present disclosure; the connectors already in use by the user, for instance when connecting the external device to a traditional laptop, can be used with the system. 
     As shown in  FIG. 3 , in some embodiments, protrusion  300  and groove  310  are included on holding device  1  and socket  2 . Protrusion  300  and groove  310  are provided to limit the orientations in which socket  2  is insertable into holding device  1 . In the embodiment shown in  FIG. 3 , protrusion  300  and groove  310  are complementary shapes that prevent insertion of socket  2  into holding device  1  unless protrusion  300  is accepted into groove  310  as well. Once socket  2  is inserted into holding device  1 , protrusion  300  also prevents rotation of socket  2 . 
     With reference to  FIG. 4 , in some embodiments, raised ring  5   a  and recessed ring  4  releasably retain socket  2  within holding device  1  through a frictional fit. In some embodiments, the raised ring  5   b  is a separate split ring spring that engages recess  4   a . In some embodiments, holding device  1  and socket  2  are separated when sufficient forces are applied on the socket from any axis. When the forces exerted on socket  2  overcome the frictional forces between raised ring  5  and recessed ring  4 , socket  2  releases from holding device  1 . In some embodiments, forces required to remove socket  2  from holding device  1  are insufficient to cause damage to port  3  or any connector disposed between port  3  and an external device. For example, a user may have an external device in their jacket pocket which is connected to a female USB port in a socket located in the armrest of an airplane seat. Upon standing, traditional connections pull taut and potentially damage the connector, external device, or jacket as the user provides an upward force that is essentially matched by the frictional fit between the connectors. When employing the disclosed system, however, the upward forces provided by the user would simply overcome the releasable connection maintained by retaining rings  4  and  5   a  or  5   b , causing the socket to pull free of the holding device before damage could be done to the connector, external device, or jacket. In some embodiments, a tool is necessary to refit socket  2  into holding device  1 . 
     One or more embodiments of the present invention have been described. Nevertheless, it will be understood that various modifications may be made without departing from the spirit and scope of the invention. Accordingly, other embodiments are within the scope of the following claims.