PATENT DOCUMENT

Publication Number: US-9261919-B2
Application Number: US-201414251523-A
Country: US
Kind Code: B2

Title: Dock with compliant connector mount

Abstract:
Docking stations having a connector with a compliant mount to provide improved durability and flexibility are provided herein. The compliant mount may couple a connector to a base of a docking station and may include at least a first and second flexure disposed there between. The first and second flexure may be configured to have flexural movement in along transverse direction so that, in combination, the flexural movement pivots the connector about a virtual pivot point a distance away from the flexures. The first and second flexures may be configured to project the virtual pivot point to a location on the connector where the connector protrudes from an opening in a docking housing, thereby minimizing the clearance required between the connector and docking housing, while providing controlled movement of the connector relative the dock.

Claims:
What is claimed is: 
     
       1. A docking station for a portable electronic device, the docking station comprising:
 a base; 
 a connector movably coupled with the base; and 
 a compliant mount coupling the connector to the base, the compliant mount being configured to support the connector in a mounting position for mounting of the portable electronic device on the connector, 
 wherein the compliant mount is configured with one or more flexures between the base and connector such that a combination of movements, including flexural movement of the one or more flexures, moves the connector about a pivot point projected a distance away from a point of flexure of the one or more flexures, 
 wherein the one or more flexures comprise a first and second flexure, wherein the first flexure flexes along a first flexure axis and the second flexure flexes along a second flexure axis, the first and second flexure axes being transverse to one another such that a normal axis of the first flexure axis intersects a normal axis of the second flexure axis at or near the projected pivot point. 
 
     
     
       2. The docking station of  claim 1 , wherein the combination of movements include any of a sliding, translation, flexure, and rotational movement. 
     
     
       3. The docking station of  claim 1 , wherein the one or more flexures comprise a first flexure and a second flexure extending parallel to and spaced apart from each other. 
     
     
       4. The docking station of  claim 1 , wherein the compliant mount is configured so that the projected pivot point is located at or near where the connector couples to the compliant mount. 
     
     
       5. The docking station of  claim 1 , wherein the base includes an outer shell having an opening through which the connector protrudes, and wherein the compliant mount is configured so that the projected pivot point is located on the connector at or near where the connector protrudes through the opening. 
     
     
       6. The docking station of  claim 1 , wherein the one or more flexures comprises a first flexure and a second flexure, wherein the connector is coupled to the compliant mount between the first and second flexures. 
     
     
       7. The docking station of  claim 1 , wherein the one or more flexures comprises a first flexure and a second flexure, wherein the first and second flexures are disposed between where the compliant mount couples to the base and where the compliant mount couples to the connector. 
     
     
       8. The docking station of  claim 1 , wherein the projected pivot point is within a range of locations near where the connector attaches to the compliant mount and moves within the range of locations during displacing movement of the connector provided by the compliant mount. 
     
     
       9. The docking station of  claim 1 , wherein the one or more flexures are defined within one integral piece. 
     
     
       10. The docking station of  claim 1 , wherein the compliant mount is configured to support the connector in the mounting position when in a non-displaced state such that the one or more flexures provide a biasing force towards the mounting position that increases with flexural displacement of the one or more flexures. 
     
     
       11. The docking station of  claim 10 , wherein the connector is configured to receive and electrically couple to a receptacle connector of the portable electronic device, the station further comprising electronic circuitry electronically coupled with a plurality of contacts of the connector, wherein the compliant mount further includes a flexible circuit that electrically couples the moveable connector with the electronic circuitry. 
     
     
       12. The docking station of  claim 10 , wherein the one or more flexures are configured with sufficient flexibility to allow a desired angular displacement of the connector from the mounting position when a displacing force is applied to the connector. 
     
     
       13. A docking station for a portable electronic device, the docking station comprising:
 a base; 
 a connector movably coupled with the base; and 
 a compliant mount coupling the connector to the base, the compliant mount being configured to support the connector in a mounting position for mounting of the portable electronic device on the connector, 
 wherein the compliant mount is configured with one or more flexures between the base and connector such that a combination of movements, including flexural movement of the one or more flexures, moves the connector about a pivot point projected a distance away from a point of flexure of the one or more flexures, 
 wherein at least one flexure of the one or more flexures comprises undulating segments that undulate along an axis substantially parallel to a pivotal axis of the projected pivot point. 
 
     
     
       14. The docking station of  claim 13 , wherein the undulating segments comprise a series of S-shaped or sinusoidal curves. 
     
     
       15. The docking station of  claim 13 , wherein the one or more flexures are defined within one integral piece. 
     
     
       16. A docking station for a portable electronic device, the docking station comprising:
 a base; 
 a connector movably coupled with the base; and 
 a compliant mount coupling the connector to the base, the compliant mount being configured to support the connector in a mounting position for mounting of the portable electronic device on the connector, 
 wherein the compliant mount is configured with one or more flexures between the base and connector such that a combination of movements, including flexural movement of the one or more flexures, moves the connector about a pivot point projected a distance away from a point of flexure of the one or more flexures, 
 wherein the one or more flexures comprise multiple cantilevers connected in series. 
 
     
     
       17. The docking station of  claim 16 , wherein the one or more flexures are defined within one integral piece. 
     
     
       18. A docking station for a portable electronic device, the docking station comprising:
 a base; 
 a connector movably coupled with the base; and 
 a compliant mount coupling the connector to the base, the compliant mount being configured to support the connector in a mounting position for mounting of the portable electronic device on the connector, 
 wherein the compliant mount is configured with one or more flexures between the base and connector such that a combination of movements, including flexural movement of the one or more flexures, moves the connector about a pivot point projected a distance away from a point of flexure of the one or more flexures, 
 wherein at least one flexure of the one or more flexures comprises a series of beams extending between where the compliant mount is coupled to the connector and where the compliant mount is coupled with the base. 
 
     
     
       19. The docking station of  claim 18 , wherein the one or more flexures are defined within one integral piece. 
     
     
       20. A docking station for a portable electronic device, the docking station comprising:
 a base; 
 a connector movably coupled with the base; and 
 a compliant mount coupling the connector to the base, the compliant mount being configured to support the connector in a mounting position for mounting of the portable electronic device on the connector, 
 wherein the compliant mount is configured with one or more flexures between the base and connector such that a combination of movements, including flexural movement of the one or more flexures, moves the connector about a pivot point projected a distance away from a point of flexure of the one or more flexures, 
 wherein the one or more flexures are configured with sufficient stiffness to inhibit angular displacement of the connector beyond a maximum angle within a range of about 10 to 45 degrees. 
 
     
     
       21. The docking station of  claim 20 , wherein the one or more flexures are configured with sufficient elasticity so as to resiliently return the connector to the mounting position when a displacing force applied to the connector is removed. 
     
     
       22. A docking station for a portable electronic device, the docking station comprising:
 a base; 
 a connector movably coupled with the base; and 
 a compliant mount coupling the connector to the base, the compliant mount being configured to support the connector in a mounting position for mounting of the portable electronic device on the connector, 
 wherein the compliant mount is configured with one or more flexures between the base and connector such that a combination of movements, including flexural movement of the one or more flexures, moves the connector about a pivot point projected a distance away from a point of flexure of the one or more flexures, wherein the projected pivot point is at a substantially fixed location relative to the base.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is a continuation application of, and claims priority to, U.S. patent application Ser. No. 13/610,832, filed Sep. 11, 2012, the contents of which are hereby incorporated by reference in its entirety. 
    
    
     BACKGROUND 
     The present invention relates to a docking station for an electronic device. More particularly, the present invention relates to a docking station having a compliant connector mount that is more durable and flexible. 
     Portable electronic devices (such as phones, media players, notebook/netbook computers, tablet computers) are becoming ubiquitous in today&#39;s society. Portable electronic devices commonly have display screens (e.g. a touch screen) on which users view and/or select data and functionality. For example, a user may select a video or other presentation to watch. In such circumstances, it is more convenient for the user to have the device in an upright (viewable) position by placing the device in some sort of holder so the user is not forced to hold the device during viewing. 
     Additionally, users would like to interface the display devices with other electronics. For example, a user may want to play music through speakers, or simply charge the device. However, during such interfacing or charging, the user would still like to be able to view the display and/or controls of the device. 
     To provide such features, manufacturers provide docking stations (docks) in which a user can plug the device. Often the docks will have a connector rising out from a surface, with the connector being in a position such that the device can be viewed and/or used. However, connectors can be weak points, especially when devices become large and additional stresses are placed on the connector, particularly in connectors of relatively small size. The connector may also provide most of the support of the device. Accordingly, the connectors of such docking stations can be damaged by misuse, e.g. being pulled in improper direction. 
     SUMMARY 
     Embodiments of the present invention provide docking stations having a connector with a compliant mount that is more flexible and durable. Some embodiments allow the connector to move when connected to a portable electronic device. This movement of the connector can absorb undesirable forces, thereby reducing a likelihood of the connector breaking from misuse. Examples of movement include sliding, translation, flexures, rotation and/or some combination thereof. For example, in some embodiments, if the portable electronic device is pushed forward, the connector can rotate, thereby reducing the likelihood of breakage from such a push. 
     In one aspect, the invention provides a mount configured to flex when the connector is stressed so as to pivot the connector at a projected or virtual pivot point a distance away from where the flexure occurs. In some embodiments, the mount is configured to provide at least two flexures or flexure hinges so that the flexural movement of the at least two flexures, in combination, pivots the connector about the virtual or projected pivot point, the pivot point being disposed a distance away from either point of flexure. The flexures of the compliant mount may also be configured to provide sufficient rigidity to the connector to support a portable device when mounted on the connector within the dock in an upright position, sufficient flexibility to allow angular displacement of a mounted portable device, and sufficient elasticity to provide a resilient biasing force to return a mounted portable device from a displaced position to the upright position. The flexures may be configured to provide controlled movement within a desired range of movement. For example, the flexures may allow a portable device mounted on the connector to tilt forward from a non-stressed mounted plane with increasing resistance to a maximum angular displacement within a range of 90 degrees or less, or in some embodiments, 45 degrees to 10 degrees. The flexures may be configured to distribute and absorb stresses associated with displacement of the connector, thereby reducing the likelihood of damage to the devices or associated connectors. 
     In another aspect, the compliant mount may be configured with a bias toward a particular position, such as an upright position, such that the electronic device is supported by the compliant mount (or alternatively by a rear reference surface of the docking station), thereby preventing undue strain on the rotatable connector in the non-deflected position. The bias of the compliant mount can be controlled by the shape and material properties of the compliant mount. For example, in some embodiments, the compliant mount is configured to support the connector in an upright position that is tilted back slightly, when the compliant mount is unstressed and unflexed so as to facilitate viewing or operation of the portable device by a user when mounted in the dock. The connector may be disposed partly below and partly above an outer shell of a base of the docking station, and pivot at a location on the connecter near an opening in the outer shell of the dock base through which the connector protrudes, thereby reducing movement of the connector near the opening. This aspect allows the opening in the housing to be minimized, and reduces the likelihood of interference between the connector and the docking housing as the connector pivots. 
     According to one embodiment, a docking station can include a base, a rear reference surface for at least partly supporting a portable electronic device in the upright position, and a movable connector that is configured to receive and electrically couple to a receptacle connector of the portable device. The movable connector can be coupled to the base by a compliant mount and biased toward the upright position. The rear reference surface can be mechanically coupled to the base and adapted to support the portable electronic device when the electronic device is coupled to the rotatable connector in its upright position. The compliant mount may include one or more flexures or flexure hinges to provide pivotal movement of the connector. In some embodiments, the compliant mount includes at least two flexure hinges so that the flexural movements, in combination, move the connector about a virtual pivot point a distance away from either point of flexure. In other embodiments, the compliant mount includes three or more flexure hinges, so that overlapping of the range of movement associate with flexure occurs at a desired pivot point location, such as near where the connector protrudes from an opening in a housing of a device, such as a docking station. 
     In some embodiments, the compliant mount includes at least two flexure hinges and one or both of at least two flexure hinges includes a series of undulations, such as a series of S-shaped or sinusoidal curves, to provide increased flexibility and elasticity to the compliant mount. A flexure hinge may also include a thinned plate having a plurality of opening, such as a series of elongate opening therein, so as to allow flexure of the plate, or a cantilever hinge. The at least two flexure hinges may be configured in series, in parallel or any combination so that the combined flexure movement of the at least two flexure hinges provides a desired movement of a connector attached thereto. Although various types and configures of flexure hinges are described herein, it is appreciated the flexure hinges of a compliant mount may include hinges of the same or differing types and configuration, including any combination of configurations or types of flexures. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of a docking mount and portable device according to embodiments of the present invention. 
         FIG. 2  shows the portable device of  FIG. 1  mounted to the connector within the docking station. 
         FIGS. 3A-3B  show a side view of the portable device mounted in the docking station in an upright position and a side view of the portable electronic device tilted forward relative docking station. 
         FIG. 4  shows an example docking stations having a connector with a compliant mount. 
         FIG. 5A-5C  show various views an example docking station with a compliant connector mount having a series of undulations or convolutions. 
         FIGS. 6A-6B  show side and perspective views of a connector supported in an upright position within the compliant mount of  FIG. 5A . 
         FIGS. 7A-7B  show side and perspective views of a connector having been tilted forward by an applied force, the compliant mount flexed forward into a deflected position. 
         FIG. 8A  show a superimposed side view of a connector within the compliant mount in the natural/non-deflected upright position and the forward-tilt/deflected position. 
         FIG. 8B  shows a perspective view of the connector and compliant mount of  FIG. 8A . 
         FIGS. 8C-8D  show cut-away side views of the connector on the compliant mount of  FIG. 8A  within a docking station housing in each of the upright position and deflected position, respectively. 
         FIGS. 9A-1  to  9 C- 1  and  9 A- 2  to  9 C- 2  show perspective and side views of the compliant connector mount of  FIG. 8A , respectively, during a finite element stress analysis as the compliant mount flexes from the upright position to deflected position. 
         FIG. 10  shows a cut-away view of alternative example of a connector and compliant mount within a docking station. 
         FIGS. 11A-11C  show various perspective views of the compliant mount of  FIG. 10 . 
         FIGS. 12A-12C  show a cut-away view of another example connector with compliant mount in a docking assembly and a detail perspective and side view of the connector and compliant mount, respectively. 
     
    
    
     DETAILED DESCRIPTION 
     Embodiments of the present invention provide a docking station (dock) having a connector with a compliant mount that allows for improved durability, flexibility and control of movement of the connector. These objectives can be accomplished, in part, by allowing the connector to move so that the connected portable electronic device does not put a significant amount of force on the connector. For example, with limited reference surfaces (surfaces that can touch the electronic device when it is connected with the connector), a joint of a fixed connector may weaken if the portable electronic device is forced off its attachment/detachment axis. Such a force may occur inadvertently when a user reaches for the device. The force of the push and/or the force of the weight of the device, which may weaken the joint, instead simply moves the connector. 
     In one aspect, the connector may be configured to move or pivot relative to the dock base in order to better distribute the forces when an off axis force is applied, e.g., it moves with the force rather than completely resisting the force by not moving. In some embodiments, the connector is attached to the dock base through a compliant mount of which flexure allows the connector attached thereto to pivot about a projected or virtual pivot point from an upright position to an angularly displaced or tilted position, thereby accommodating a force applied to the connector through a portable device mounted in the docking station. The compliant mount may be configured with a bias towards a natural position in which the connector is supported upright, the bias providing a resilient force when displaced so as to inhibit forward tilt movement of the portable device beyond a maximum angular displacement and to resiliently return the connector to the upright position when the applied force is removed. The precise motion of the connector and forces from any biasing mechanism can be tuned to provide a desired motion and feel when a user moves the electronic device. 
     As used herein, a portable electronic device is of such size and proportion that it may be carried in the hand(s) of a person. Examples of portable electronic devices include but are not limited to media players that play or otherwise transmit audio and/or visual (video or picture) signals (e.g., iPod) and phones that allow users to communicate remotely through wireless connections. Portable electronic devices may also correspond to mini-computers, tablet computers, PDAs, internet or email based devices. In fact, portable electronic devices may be a combination of specific or dedicated devices mentioned above (e.g., a smart phone such as the iPhone™), manufactured and sold by Apple Inc. of Cupertino, Calif., the assignee of the present application. 
     Embodiments of the invention are discussed below with reference to figures. However, those skilled in the art will readily appreciate that the detailed description given herein with respect to these figures is for explanatory purposes as the invention extends beyond these embodiments. For example, embodiments may be used with various types of connectors between device, including non-portable devices. 
       FIG. 1  is a perspective view of a connector assembly in accordance with embodiments of the present invention. The connector  110  extends upwards from a base of a dock or docking station  300  and can be attached and removed from a corresponding mating connector along a mating axis  130 . The corresponding mating connector may for example be a connector carried by an electronic device, such as portable electronic device  200 . The connectors can slide on/off along mating axis  130  in order to couple and decouple the electrical contacts associated with the connectors. In the embodiment shown, the connector assembly  100  includes a connector  110  that protrudes upwards from within a recessed docking well  320  of a docking station  300  so as to be received within a corresponding connector receptacle  210  of a portable device such that the connector  110 , at least in part, supports the portable device  200  when mounted in the upright position. As can be seen in  FIG. 1 , connector  110  protrudes through an opening  330  in the housing  310  of dock  300 . Such a docking station can provide a platform for quickly and easily coupling a portable electronic device to another system or device as for example a computer, a power source, or peripheral devices such as a monitor, a keyboard, speakers, etc. The docking station can also hold the electronic device in a position suitable for viewing a display of the electronic device. 
     Docking stations may be a stand-alone unit that communicates with other devices or systems through wired (e.g., cables) or wireless (e.g., Bluetooth) connections, or alternatively, a docking station may be integrated directly into the other devices or systems. In one embodiment, connector  110  may be connected to other electronics housed within the docking station via a flexible or movably-enabled connection, such as swiping contacts, wires, traces, flexible circuits and/or the like. Some of these examples may include slack so that the connector can move between positions. The electronics may be widely varied. The electronics may for example include circuit boards, controllers, connectors, and the like. The electronics can be fixed within the body or configured to be movable to help manage the connection between the electronics and connector  110 , as connector  110  moves. For example, a printed circuit board may slide along rails. Certain embodiments are described in more detail below. 
     Docking station  300  can also hold electronic device  200  in a position suitable for viewing a display  213  of the electronic device. Docking station  300  may include a base, which may contain various electronics, ballast, and the like. The base can serve to keep docking station  300  balanced and supported on a surface such as a table, as well as keep electronic device  200  balanced and supported when mounted thereto. Docking station  300  may also provide one or more reference surfaces for helping support the electronic device in an upright position. 
     Connector  110  may be coupled to other connectors, ports, jacks, transceivers, or cables of the docking station, thereby providing external connections to the other devices or systems. In the case of an integrated docking station, connector  110  may be wired directly to the components of the host device or system. In some cases, connector  110  is substantially on its own while in other cases the connector may be part of a module that includes a secondary structure, such as a housing. 
     In various embodiments, connector  110  can correspond to USB, Firewire, or other standardized connector formats. In one example, connector  110  is an 8-pin connector compatible with the Apple iPod® and iPhone™ devices. In an embodiment, the 8-pin connector has a thin low profile (as shown) with spaced apart side by side pins, which may be in a single row. In one embodiment, the electronic device can have a female connector receptacle connector that connects with connector  110 , which may be a male connector plug. In alternative embodiments, the electronic device can have a male connector receptacle that connects with a female connector plug of a dock. In this embodiment, the female receptacle may be situated in a housing. 
     In one embodiment, an insertable tab of connector  110  protrudes through an opening  330  in an outer housing  310  of the docking station  300 , the insertable tab portion  114  having a plurality of electrical contacts  122  disposed thereon being exposed and substantially free from external walls and surfaces (e.g. no or limited walls that surround or are adjacent to the connector) to facilitate mating engagement within the corresponding receptacle  210  of the portable device  200 . As such, connector  110  may be configured to support electronic devices coupled thereto via a corresponding mating connector with limited or no reference surfaces provided for the electronic device. While in various embodiments connector  110  protrudes from an opening  330  within a docking well  320  of a dock  300 , connector  110  need not be disposed within a recess or cavity and instead may extend outward from a surface such that its sides are exposed. As shown in  FIG. 2 , in various embodiments, connector  110  is configured to protrude upwards in an upright position (a major component extending along the z axis) so that when a portable device  200  is mounted thereon, the portable device, as well as connector  110 , extends through a mounting plane P m  through which insertion axis  130  extends. 
     Because connector  110  can be exposed and substantially free from reference surfaces, undesirable off-axis forces may be exerted on connector  110  especially when an electronic device is connected thereon. For example, during a removal event, the electronic device may be rotated, pushed, pulled away from the mating axis thereby imparting undesirable forces on connector  110 . By way of example, if mating axis  130  is in the direction of the z axis, undesirable forces may be imparted on the connector by translating the electronic device in x and y as well as rotations about x, y and z axes. In addition, there may even be some forces pulling/pushing on the connector along the z axis due to friction between the mating connectors. Certain configurations of connector  110  may lead to more susceptible areas of undesirable forces. 
     Of particular concern, are torques and bending stresses that may be applied to connector  110  through manual articulation of a portable device  200  mounted thereon, such as shown in  FIGS. 3A-3B . It may be desirable to allow pivotal movement of the connector  110  relative to the dock  300  to accommodate angular displacement θ b  of the portable device from the mounting plane P m , such as when a user may tilt the portable device  200  forward, as in  FIG. 3B . Although various mechanisms may be used to allow for such rotational movement of the connector  100 , often such mechanisms may result in excessive movement of the connector  100  so that an opening through which the connector  110  extends must be larger than desired to provide sufficient clearance for movement of the connector  110 . In addition, the presence of such mechanisms may interfere with the housing of the dock or require additional clearance within the dock itself. Therefore, it would be desirable to provide a flexible, movable connector  110  that pivots substantially about a point at or near where the connector  110  protrudes through an opening so as to minimize the required clearance between the connector  110  and the housing  310  of the dock  300 . This presents challenges, however, since the connector  110  is often fabricated from a substantially rigid material to withstand the stress of ordinary use and ensure integrity of the electrical connection and the connector itself, particularly in connector having relatively small dimensions. It would be further desirable to provide a controlled movement of the connector  110  within a desired range of angular displacements θ b , while reducing the overall size and complexity of the mechanisms by which such movement of the connector  110  is achieved. 
     In one aspect, to achieve the above noted objectives, the connector  110  is attached to a base of the dock  300  by a compliant mount  100  that allows for movement of the connector  110  at a virtual pivot point relative to the base at or near where the connector  110  protrudes from a housing of the dock  300  by providing flexural movement a distance below the virtual pivot point. By projecting the pivot point a distance away from the flexure that provide for the pivotal movement, the compliant mount  100  can avoid interference with the housing of the dock. The compliant mount  100  may also be configured to allow for movement of the connector  100  about a pivotal axis substantially parallel to the x-axis, such as shown by the arrow in  FIG. 4 . 
       FIGS. 5A-5C  illustrate an example of one such compliant mount  100 , the compliant mount including a first and second flexure hinge, each flexure hinge comprising a series of S-shaped undulation or convolutions (as shown in  FIG. 5B ). The series of S-shaped curves providing sufficient flexure to accommodate a range of movement of the connector  110  without elastically deforming so as to provide a resilient force to bias the connector  110  towards an upright position, as shown in  FIG. 5A . Providing two hinges having flexural movement in different directions allows the connector  110  to pivot about a virtual pivot point vp projected a distance away from the points of flexure on the flexure hinges. The location of the pivot point vp, may be a substantially fixed location relative to the dock  300  or may be a range of location within close proximity. Alternatively, the location of the virtual pivot point vp may be disposed along a line or curve defined by the overlapping ranges of motion of the one or more flexure hinges of the compliant mount. 
     In the embodiment of  FIGS. 5A-C  and  6 A- 6 B, the compliant mount  100  comprises a first flexure hinge  102  and a second flexure hinge  104 , each having a major dimension extending along the x-axis so as to distribute and better withstand any torsional forces applied through the connector  110 . The first and second flexure hinge  102 ,  104  are connected to each other by two beams  106  extending along the y-axis which in turn are coupled with the connector  110  through connector plate  107  extending between the pair of beams  106 . The connector  110  may be rigidly coupled with the connector plate  107 , such as by a weld, or may be integrally formed with the plate  107 . In the present embodiment, each of the S-shaped curves extends between a mounting plate  109  rigidly attached to the bottom inside surface of the dock housing  310  and one of the pair of beams  106  connecting the first and second flexure hinges  102 ,  104 . Although in the present embodiment, each flexure hinge includes four S-shaped undulations, it is appreciated other embodiments may include flexure hinges of different numbers of undulations, such as one to ten undulations, or various other shapes having flexural properties, such as chevrons, coils, and diamonds. 
       FIGS. 6A-6B  illustrate the compliant mount with connector in a “natural” (n) position towards which the compliant mount  100  is naturally biased. In this position, the first and second flexure hinges  102 ,  104  are non-displaced and under minimal stresses, such as those associated with supporting the connector  110 . 
       FIGS. 7A-7B  illustrate the example compliant mount  100  with connector  110  in a “deflected” (d) position in which the connector  110  has been tilted forward towards the first flexure hinge  102 . In this position, the first and second flexure hinges  102 ,  104  are under stress and are flexed along their respective flexural axes  102 ′ and  104 ′ respectively. As can be understood with reference to the arrows in  FIG. 7A , movement of the first flexure hinge in combination with movement of the second flexure along their respective axes results in a pivotal or rotational type movement of connector  110  about a virtual pivot point vp. In some embodiments, this point can be determined by an intersection of the normal axes  102 ′ N  and  104 ′ N  of the flexural movement. Although in some embodiments, the virtual pivot point is substantially fixed relative to the dock, in other embodiments, the virtual pivot point may move along with the flexural axes along which flexural movement occurs. Thus, the location at which the virtual pivot point occurs can be precisely controlled by adjusting the flexural properties of the flexure hinges as well as by their configured location and orientation. In the embodiment shown, the first and second flexure hinges are configured so that the virtual pivot point occurs near a first section of the connector  110  which protrudes through the opening of the dock housing  310 . By configuring the compliant mount  100  to provide a virtual pivot point at this location, such as shown in  FIG. 5C , movement of the connector  110  at this location is minimized, which requires less clearance between the connector  110  and the dock housing  310 , thereby allowing the size of the opening through which the connector protrudes to be reduced. This aspect can be understood further with reference to  FIGS. 8C-8D , which shows clearance gaps (g,g′) between the front and rear surfaces of the connector  110  and the rigid housing  310  at the opening  133  through the connector  110  protrudes. 
     Coupling the base of the connector  110  to a connector plate  107  having a width greater than a width of the connector  110  allows the compliant mount to distribute forces applied through the connector  110  over a greater distance so as to provide improved resistance to rotational forces about each of the x, y and z-axes. In addition, distributing the forces over a first and second flexure hinge having a width along the x-axes greater than that of the connector  110  assists in reducing the stresses to allow the flexure of the hinges to remain below plastic deformation so that the flexure hinges can accommodate flexural movement while still maintain sufficient elasticity to provide a resilient bias towards the upright position. 
       FIG. 8A  shows a superimposed side view of the compliant mount  100  and connector  110  of  FIG. 5A  in the natural (n), non-deflected position and the deflected position (d). In some embodiments, as the angular displacement θ b  of the connector  110  increased, the resilient force provided by the first and second flexure hinges also increases thereby inhibiting displacement of the connector  110  beyond a maximum range, so as to prevent damage to either the devices or associated connectors. The resilient force is determined largely by the configuration (e.g. position, dimensions, and orientation) and material properties of the flexural hinges, which may be selected to provide a desired range of allowable angular displacement or biasing force. In some embodiments, the first and second flexure hinges are configured to provide a maximum angular displacement within a range of about 10 degrees to 45 degrees from the mounted plane P m  through which the connector  110  extends when in the natural, non-deflected position. 
       FIGS. 9A-1  to  9 C- 1  and  9 A- 2  to  9 C- 2  show perspective and side views of the connector and compliant mount of  FIG. 8A , respectively, during a finite element stress analysis as the compliant mount flexes from the upright position to deflected position. The more flexure experienced within the first and second flexure hinges, the stress is visible within the flexural hinges  102 ,  104 . In addition, the greater the flexure displacement, the greater the resilient force biasing the hinges back towards the natural position assuming that displacement remains below plastic deformation. 
     FIGS.  10  and  11 A- 11 C shows a cut-away view of alternative example of a connector and compliant mount within a docking station. Similar to the embodiment in  FIG. 5A , the compliant mount  100  includes an A-frame type configuration with an inclined first flexure hinge  102  and a declined second flexure hinge  104  connected by beam  106  to which a base of the connector  110  is attached such that the combined movement of the first and second flexure hinge project a pivot point upwards a distance away from the hinges to a virtual pivot point disposed at or near where the connector protrudes through an opening in the dock housing  310 . The series of openings within the thin plate of each of the first and second flexure hinges reduces the stiffness to allow sufficient flexure of the hinge to accommodate a range angular displacement of the connector  110 , yet provide sufficient rigidity to inhibit flexure beyond a maximum range of angular displacement, and sufficient elasticity to provide a resilient biasing force toward the natural, upright position shown in  FIGS. 10 and 11C . 
       FIGS. 12A-12C  show a cut-away view of another example connector with a compliant mount having a first and second flexure hinge. In this embodiment, each flexure hinge comprises a reverse cantilever design, the first and second hinges being arranged in series between the connector  110  and the mounting plate  109  attached to the dock housing  310 . Similar to the embodiment described above, the first and second hinges are configured so that, in combination, flexure movement of the first and second flexure hinges provides movement of the connector about a virtual pivot point projected a distance away from either hinges, such as at a location on the connector  110  at or near where the connector protrudes through the opening in the dock housing. In this embodiment, as the connector  110  pivots forwards, the first flexure hinge (the lower cantilever) pivots downward while the second flexure hinge pivots upwards. 
     It is appreciated that although in various embodiments the compliant mount is described as including at least a first and second flexure or flexure hinge, the complaint mount is not so limited and may include additional flexure hinges or varying combinations of flexure hinges, as desired, to provide additional flexibility or improved control over the movement of the connector relative to the dock. The specific details of particular embodiments may be combined in any suitable manner or varied from those shown and described herein without departing from the spirit and scope of embodiments of the invention. Moreover, the invention may also provide other features of docking stations, such as speakers, a video screen computers, and charging mechanisms. 
     The above description of exemplary embodiments of the invention has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form described, and many modifications and variations are possible in light of the teaching above. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications to thereby enable others skilled in the art to best utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated.

Metadata:
Filing Date: 20140411
Publication Date: 20160216
Grant Date: 20160216
Priority Date: 20120911
Inventors: WEBB MICHAEL J.
COLAHAN IAN P.
THOMPSON PAUL J.
Assignee: APPLE INC
CPC Classifications: [{"code": "G06F1/1632", "inventive": true, "first": true, "tree": "[]"}, {"code": "H01R13/6315", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R13/58", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F1/1632", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R33/975", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F1/1683", "inventive": true, "first": true, "tree": "[]"}, {"code": "F16C11/12", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04M1/04", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R13/58", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R13/6315", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R33/975", "inventive": false, "first": false, "tree": "[]"}, {"code": "F16C11/12", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R13/6315", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F1/1683", "inventive": true, "first": true, "tree": "[]"}, {"code": "H04M1/0274", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04M1/04", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01R33/975", "inventive": false, "first": false, "tree": "[]"}, {"code": "G06F1/1632", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04M1/0274", "inventive": true, "first": false, "tree": "[]"}]
Family ID: 48040095