PATENT DOCUMENT

Publication Number: US-11334164-B2
Application Number: US-202016888094-A
Country: US
Kind Code: B2

Title: Portable electronic device having a haptic device with a moving battery element

Abstract:
An electronic device includes an enclosure having a transparent cover defining a touch-sensitive surface, a display positioned within the enclosure and below the transparent cover, and a haptic device configured to produce a haptic output along the touch-sensitive surface. The haptic device may include a battery element electrically coupled to the display, a magnetic element, and a coil assembly fixed with respect to the enclosure and configured to induce an oscillatory movement of the battery element parallel to the display to produce the haptic output. In other examples, the coil assembly may be coupled to the battery element and the first and second magnetic elements may be fixed with respect to the enclosure.

Claims:
What is claimed is: 
     
       1. An electronic watch comprising:
 an enclosure having a transparent cover defining a touch-sensitive surface; 
 a display positioned within the enclosure and below the transparent cover; and 
 a haptic device configured to produce a haptic output along the touch-sensitive surface, the haptic device comprising:
 a battery element electrically coupled to the display; 
 a magnetic element; 
 a coil assembly fixed with respect to the enclosure; and 
 a drive circuit configured to provide an oscillating current to the coil assembly, the oscillating current inducing an oscillatory movement of the magnetic element and the battery element in a direction parallel to at least a portion of the display, the movement of the magnetic element and the battery element producing the haptic output. 
 
 
     
     
       2. The electronic watch of  claim 1 , wherein:
 the battery element defines a first surface and a second surface opposite to the first surface; 
 the magnetic element includes a first magnetic element and a second magnetic element; 
 the first magnetic element is coupled to the battery element along the first surface and positioned between the battery element and the display; 
 the second magnetic element is coupled to the battery element along the second surface; and 
 the coil assembly extends around the battery element, the first magnetic element, and the second magnetic element. 
 
     
     
       3. The electronic watch of  claim 1 , wherein:
 the magnetic element includes a first magnetic element and a second magnetic element; and 
 the battery element extends around at least a portion of the first magnetic element and at least a portion of the second magnetic element. 
 
     
     
       4. The electronic watch of  claim 1 , wherein the magnetic element defines a case that at least partially encloses the battery element. 
     
     
       5. The electronic watch of  claim 1 , wherein:
 the battery element is configured to provide power to the drive circuit to produce the oscillating current. 
 
     
     
       6. The electronic watch of  claim 1 , wherein the haptic device further comprises:
 a first spring element positioned at a first end of the battery element and configured to produce a first restoring force; and 
 a second spring element positioned at a second end of the battery element opposite to the first end and configured to produce a second restoring force opposite to the first restoring force. 
 
     
     
       7. The electronic watch of  claim 6 , wherein:
 the electronic watch further comprises electronic circuitry having a processing unit; 
 the electronic circuitry is positioned along a side of the battery element that is opposite to the display; and 
 the first spring element comprises a flexible circuit element having one or more conductive power traces that electrically couple the battery element to the electronic circuitry. 
 
     
     
       8. An electronic watch comprising:
 an enclosure having a transparent cover; 
 a touch-sensitive display positioned within the enclosure and below the transparent cover; and 
 a haptic device configured to produce a haptic output along an exterior surface of the electronic watch, the haptic device comprising:
 a battery element electrically coupled to the touch-sensitive display; 
 a first magnetic element fixed with respect to the enclosure; 
 a second magnetic element fixed with respect to the enclosure; 
 a coil assembly fixed with respect to the battery element; and 
 a drive circuit configured to provide an oscillatory current to the coil assembly, the oscillating current inducing an oscillatory movement of the coil assembly and the battery element with respect to the first magnetic element and the second magnetic element to produce the haptic output. 
 
 
     
     
       9. The electronic watch of  claim 8 , wherein:
 the drive circuit is electrically coupled to the battery element. 
 
     
     
       10. The electronic watch of  claim 8 , wherein:
 the electronic watch is configured to produce the haptic output in response to touch input detected by the touch-sensitive display; and 
 the electronic watch is configured to modify a graphical output of the touch-sensitive display in response to the touch input. 
 
     
     
       11. The electronic watch of  claim 8 , wherein the oscillatory movement produces a vibration that is tactilely perceptible along an outer surface of the transparent cover. 
     
     
       12. The electronic watch of  claim 8 , wherein the oscillatory movement produces an inertial pulse that is tactilely perceptible along an outer surface of the electronic watch. 
     
     
       13. The electronic watch of  claim 8 , wherein:
 the electronic watch further comprises a circuit assembly positioned along a lower side of the battery element; and 
 the haptic device further comprises a flexible electrical circuit that electrically connects the battery element to the circuit assembly. 
 
     
     
       14. The electronic watch of  claim 13 , wherein the flexible electrical circuit is attached to a flexure element that is configured to provide a restoring force to the battery element. 
     
     
       15. An electronic device comprising:
 an enclosure having a transparent cover; 
 a touch sensor positioned below the transparent cover and configured to detect touch input along an outer surface of the transparent cover; 
 a display positioned within the enclosure and below the transparent cover; 
 a battery element disposed within the enclosure below the display; 
 an actuation mechanism that is operable to move the battery element along a linear path thereby providing an inertial output that is tactilely perceptible along the outer surface of the transparent cover; and 
 a pair of flexures that deform in response to movement of the battery element and provide a restorative force to the battery element, the pair of flexures including a first flexure disposed between a first side of the battery element and the enclosure and a second flexure disposed between a second side of the battery element and the enclosure, the first flexure including a set of conductive traces that electrically connects the battery element to the display during the movement. 
 
     
     
       16. The electronic device of  claim 15 , wherein the electronic device is configured to cause the actuation mechanism to move the battery element in response to detecting the touch input along the outer surface of the transparent cover. 
     
     
       17. The electronic device of  claim 15 , wherein:
 the electronic device further comprises a circuit assembly positioned along a side of the battery element; and 
 the first flexure comprises: 
 a flexible metal substrate; and 
 a flexible circuit laminate disposed on the flexible metal substrate, the flexible circuit laminate including a set of conductive traces that electrically couples the battery element to the circuit assembly. 
 
     
     
       18. The electronic device of  claim 17 , wherein the flexible circuit laminate includes multiple conductive traces. 
     
     
       19. The electronic device of  claim 15 , wherein:
 the first flexure includes two straight segments that are connected by a joint; and 
 the joint is configured to bend in response to the movement of the battery element. 
 
     
     
       20. The electronic device of  claim 15 , wherein:
 the electronic device further comprises a tray that is configured to receive the battery element; 
 the tray at least partially surrounds the battery element; and 
 the tray moves with the battery element when the battery element is moved by the actuation mechanism.

Description:
CROSS REFERENCE TO RELATED APPLICATION(S) 
     This application is a non-provisional application that claims priority to U.S. Provisional Patent Application No. 62/876,879, filed Jul. 22, 2019, and titled “Haptic Devices that Move Battery Elements,” the disclosure of which is hereby incorporated herein by reference in its entirety. 
    
    
     FIELD 
     The described embodiments relate generally to electronic devices having a haptic device. More particularly, the embodiments described herein relate to haptic devices that move a battery element to provide a haptic output. 
     BACKGROUND 
     Electronic devices are increasingly common in the modern world. These electronic devices include any of a number of different input or output components for interacting with a user. Traditionally, electronic devices include one or more buttons or electromechanical switches for providing input. However, as devices become smaller, there is less space to integrate traditional button-type input devices. Some devices include a touch sensor or touch screen for receiving input. However touch sensors generally lack the mechanical feedback to alert the user that an input has been registered. 
     The systems and techniques described herein are directed to a haptic device that may be used to provide tactile feedback to a user during operation of the device. More specifically, the embodiments described herein are directed to a haptic device that moves a battery element in order to produce a tactilely perceptible pulse or vibration along an exterior surface of the device. 
     SUMMARY 
     The present disclosure relates to a haptic device that moves a battery element. The haptic device may be included in an electronic device, such as an electronic watch. The haptic device may include the battery element, an actuation mechanism that is operable to move the battery element, a support mechanism that is operable to allow the battery element to move, and a flexible connector that electrically connects the battery element to another component during the movement. 
     In various embodiments, an electronic watch includes an enclosure having a transparent cover defining a touch-sensitive surface, a display positioned within the enclosure and below the transparent cover, and a haptic device configured to produce a haptic output along the touch-sensitive surface. The haptic device includes a battery element electrically coupled to the display, a magnetic element, and a coil assembly fixed with respect to the enclosure and configured to induce an oscillatory movement of the battery element in a direction that is parallel to at least a portion of the display to produce the haptic output. 
     In some examples, the battery element defines a first surface and a second surface opposite to the first surface, the magnetic element includes a first magnetic element and a second magnetic element, the magnetic element includes a first magnetic element and a second magnetic element, the first magnetic element is coupled to the battery element along the first surface and positioned between the battery element and the display, the second magnetic element is coupled to the battery element along the second surface, and the coil assembly extends around the battery element, the first magnetic element, and the second magnetic element. In various examples, the magnetic element includes a first magnetic element and a second magnetic element and the battery element extends around at least a portion of the first magnetic element and at least a portion of the second magnetic element. In some examples, the magnetic element is a case of the battery element or the magnetic element is a first magnetic element and a second magnetic element disposed in a cavity defined within the battery element. In a number of examples, the electronic watch further includes a drive circuit, the drive circuit is configured to apply an oscillating current to the coil assembly, and the battery element provides power to the drive circuit to produce the oscillating current. 
     In various examples, the haptic device further includes a first spring element positioned at a first end of the battery element and configured to produce a first restoring force and a second spring element positioned at a second end of the battery element opposite to the first end and configured to produce a second restoring force opposite to the first restoring force. In a number of implementations of such examples, the electronic watch further includes electronic circuitry having a processing unit, the electronic circuitry is positioned along a side of the battery element that is opposite to the display, and the first spring element includes a flexible circuit element having one or more conductive power traces that electrically couple the battery element to the electronic circuitry. 
     In some embodiments, an electronic watch includes an enclosure having a transparent cover, a touch-sensitive display positioned within the enclosure and below the transparent cover, and a haptic device configured to produce a haptic output along an exterior surface of the electronic watch. The haptic device includes a battery element electrically coupled to the touch-sensitive display, a first magnetic element fixed with respect to the enclosure, a second magnetic element fixed with respect to the enclosure, and a coil assembly fixed with respect to the battery element and configured to induce an oscillatory movement of the battery element parallel to at least a portion of the touch-sensitive display to produce the haptic output. 
     In various examples, the electronic watch further includes a drive circuit that is electrically coupled to the battery element and the drive circuit is electrically coupled to the coil assembly and is configured to produce a drive signal that induces the oscillatory movement of the battery element. In some examples, the haptic output is produced in response to touch input detected by the touch-sensitive display and a graphical output of the touch-sensitive display is modified in response to the touch input. In a number of examples, the oscillatory movement produces a vibration that is tactilely perceptible along an outer surface of the transparent cover. In various examples, the oscillatory movement produces an inertial pulse that is tactilely perceptible along an outer surface of the electronic watch. In a number of examples, the electronic watch further includes a circuit assembly positioned along a lower side of the battery element and the haptic device further includes a flexible electrical circuit that electrically connects the battery element to the circuit assembly. In some implementations of such examples, the flexible electrical circuit is attached to a flexure element that is configured to provide a restoring force to the battery element. 
     In a number of embodiments, an electronic device includes an enclosure having a transparent cover, a touch sensor positioned below the transparent cover and configured to detect touch input along an outer surface of the transparent cover, a display positioned within the enclosure and below the transparent cover, a battery element disposed within the enclosure below the display, an actuation mechanism that is operable to move the battery element along a linear path that is parallel to a portion of the display to provide an inertial output that is tactilely perceptible along the outer surface of the transparent cover and a flexure that deforms in response to movement of the battery element and provides a restorative force to the battery element. The flexure includes a set of conductive traces that electrically connects the battery element to the display during the movement. 
     In some examples, the electronic device is configured to cause the actuation mechanism to move the battery element in response to detecting the touch input along the outer surface of the transparent cover. In a number of examples, the electronic device further includes a circuit assembly positioned along a side of the battery element and the flexure includes a flexible metal substrate and a flexible circuit laminate disposed on the flexible metal substrate, the flexible circuit laminate including a set of conductive traces that electrically couples the battery element to the circuit assembly. In some implementations of such examples, the flexible circuit laminate includes multiple conductive traces. 
     In various examples, the flexure includes two straight segments that are connected by a joint and the joint is configured to bend in response to the movement of the battery element. In some examples, the electronic device further includes a tray that is configured to receive the battery element, the tray at least partially surrounds the battery element, and the tray moves with the battery element when the battery element is moved by the actuation mechanism. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The disclosure will be readily understood by the following detailed description in conjunction with the accompanying drawings, wherein like reference numerals designate like structural elements. 
         FIG. 1A  depicts an example electronic device that includes a haptic device. 
         FIG. 1B  depicts the electronic device of  FIG. 1A  with the display removed so that a first example haptic device is visible. 
         FIG. 1C  depicts a cross section of the electronic device of  FIG. 1A , taken along line A-A. 
         FIG. 1D  depicts a first alternative example of the haptic cell of  FIG. 1C . 
         FIG. 1E  depicts a second alternative example of the haptic cell of  FIG. 1C . 
         FIG. 1F  depicts the battery element of  FIG. 1C  with a portion cut away to show internal components. 
         FIG. 1G  depicts an example implementation of the battery cell. 
         FIG. 1H  depicts example functional relationships among example components that may be used to implement the example electronic device of  FIG. 1A . 
         FIG. 2A  depicts a second example haptic device. 
         FIG. 2B  depicts the haptic device of  FIG. 2A  with the support mechanisms and the actuation mechanism removed. 
         FIG. 3A  depicts a third example haptic device. 
         FIG. 3B  depicts an alternative example of the third example haptic device that omits the first and second magnetic elements. 
         FIG. 4  depicts a fourth example haptic device that includes a battery element with a portion cut away to show internal components. 
         FIG. 5A  depicts a fifth example haptic device. 
         FIG. 5B  depicts an exploded view of the battery element of  FIG. 5A . 
         FIG. 6A  depicts a sixth example haptic device. 
         FIG. 6B  depicts a bottom view of the haptic device of  FIG. 6A . 
         FIG. 7  depicts a seventh example haptic device. 
         FIG. 8  depicts an alternative example of a flexure that may be used as one of the flexures in the haptic device of  FIG. 7 . 
         FIG. 9  depicts an eighth example haptic device. 
         FIG. 10  depicts a ninth example haptic device. 
         FIG. 11  depicts a tenth example haptic device. 
         FIG. 12  depicts an eleventh example haptic device. 
         FIG. 13  depicts a twelfth example haptic device. 
         FIG. 14  depicts a thirteenth example haptic device. 
         FIG. 15A  depicts a fourteenth example haptic device. 
         FIG. 15B  depicts the haptic device of  FIG. 15A  with the battery element coupled to the retaining ring. 
         FIG. 16  depicts an internal view of alternative electronic device that includes a haptic device. 
     
    
    
     DETAILED DESCRIPTION 
     Reference will now be made in detail to representative embodiments illustrated in the accompanying drawings. It should be understood that the following descriptions are not intended to limit the embodiments to one preferred embodiment. To the contrary, it is intended to cover alternatives, modifications, and equivalents as can be included within the spirit and scope of the described embodiments as defined by the appended claims. 
     The description that follows includes sample systems, methods, and apparatuses that embody various elements of the present disclosure. However, it should be understood that the described disclosure may be practiced in a variety of forms in addition to those described herein. 
     Increasingly, electronic devices are becoming smaller while including more and/or more powerful components. This may create the need for solutions to enable all of the components for an electronic device to be included inside. Internal space may be at a premium and compromises may be made between component size, component performance, and component features. 
     This may particularly be the case for portable devices, such as smart phones, tablet computing devices, electronic watches and/or other wearable devices, and so on. Portable devices may be even smaller than other electronic devices, putting internal space further at a premium, and may additionally include one or more battery elements that may be used to power one or more other components (though some non-portable devices, such as vehicles, may also include one or more battery elements). Battery life may at least partially be a function of battery element size, and tradeoffs may be made between battery life and available space for battery elements versus other components, such as one or more haptic devices that are operable to provide haptic output. 
     As used herein, the term “haptic output” may be used to refer to a vibration or inertial pulse that is tactilely perceptible along an exterior surface of the device. A haptic output may be produced alone or in coordination with other device outputs including an audible output produced by a device speaker or a visual output produced by a graphical user interface, display, or light-emitting element. A haptic output may be used to simulate mechanical feedback in response to a touch or other user input. The haptic output may also be used to signal an alert or other event, such as a received message, completion of a timer, incoming phone call, and so on. 
     For example, tradeoffs may be made between battery life and available space for battery elements versus other components discussed above. A portable electronic device may include both a battery element for power and a haptic device that moves a mass (such as a tungsten weight) to produce haptic output. The battery element may be smaller than would be possible if the haptic device was not included, decreasing possible battery life (and thus usable portable electronic device life). Similarly, the haptic device may be smaller than would otherwise be possible if the battery element was not included. The less space available for the haptic device, the less space available for the mass included in the haptic device. The smaller the mass of the haptic device, the further that the haptic device may need to move the mass in order to produce the same haptic output. For example, a first mass half as large as a second mass may move twice as far in order to generate the same magnitude of haptic output. For example, a two gram weight may move 0.8 millimeters to produce the same haptic output as a four gram weight that moves 0.4 millimeters. Thus, even when the mass is made smaller to accommodate a larger battery element, the additional space needed for the haptic device to move the mass may still limit available space for battery element size. A larger battery element may require a smaller haptic device, which may not have a large enough mass and/or move the mass far enough to generate haptic output with a desired magnitude. 
     This tradeoff may be overcome by integrating a battery element (used to power the electronic device) into an oscillating mass used to produce a haptic output for the electronic device. By not including separate battery elements and haptic device masses, the battery elements can be larger, increasing battery life. Further, the larger size may decrease the amount of space that the haptic device moves the battery in order to generate the haptic output, freeing up space for other components. Using a battery element as a mass for a haptic device may involve actuation mechanisms operable to move the battery element, flexible connectors that allow the battery element to remain electrically connected during the movement, support mechanisms that allow the battery element to move, battery element configurations that are not damaged by the movement, and so on. 
     The following disclosure relates to a haptic device that includes a moving battery element. The haptic device may be included in an electronic device, such as an electronic watch. The haptic device may include the battery element, an actuation mechanism that is operable to move the battery element, a support mechanism that is operable to allow the battery element to move, and a flexible connector that electrically connects the battery element to another component during the movement. 
     For example, an electronic watch may include an enclosure having a transparent cover defining a touch-sensitive surface, a display positioned within the enclosure and below the transparent cover, and a haptic device configured to produce a haptic output along the touch-sensitive surface. The haptic device may include a battery element electrically coupled to the display, a magnetic element, and a coil assembly fixed with respect to the enclosure and configured to induce an oscillatory movement of the battery element parallel to the display to produce the haptic output. 
     By way of another example, an electronic watch may include an enclosure having a transparent cover defining a touch-sensitive surface, a display positioned within the enclosure and below the transparent cover, and a haptic device configured to produce a haptic output along the touch-sensitive surface. The haptic device may include a battery element electrically coupled to the display, a first magnetic element fixed with respect to the enclosure, a second magnetic element fixed with respect to the enclosure, and a coil assembly coupled to the battery element and configured to induce an oscillatory movement of the battery element parallel to the display to produce the haptic output. 
     In yet another example, an electronic watch may include an enclosure having a transparent cover defining a touch-sensitive surface, a display positioned within the enclosure and below the transparent cover, a battery element disposed within the electronic watch, an actuation mechanism that is operable to move the battery element from an initial position in a direction parallel to the display to provide a haptic output, and a flexure. The flexure may deform to allow movement of the battery element, return the battery element to the initial position after the movement, and electrically connect the battery element to the display during the movement. 
     These and other embodiments are discussed below with reference to  FIGS. 1A-16 . However, those skilled in the art will readily appreciate that the detailed description given herein with respect to these Figures is for explanatory purposes only and should not be construed as limiting. 
       FIG. 1A  depicts an example electronic device  100  that includes a haptic device. The electronic device  100  may be an electronic watch having an enclosure  101  and a display assembly  102  (which may include a transparent cover defining a touch-sensitive surface and a display positioned below the transparent cover) and/or other components. 
     Although the electronic device  100  is illustrated and described as an electronic watch, it is understood that this is an example. In various implementations, the electronic device  100  may be any kind of electronic device without departing from the scope of the present disclosure, including, without limitation, a mobile phone, a tablet computing device, a laptop computing device, a media player device, or a health monitoring device. Other example devices include a portable electronic device, a smart phone, a mobile computing device, an input device, a computer mouse, a tablet computing device, a kitchen appliance, a display, a keyboard, and so on. 
       FIG. 1B  depicts the electronic device  100  of  FIG. 1A  with the display assembly  102  removed so that a first example haptic device  103  is visible. The haptic device  103  may include an actuation mechanism  106  that is operable to move a battery element  104 , a support mechanism  105  that allows the battery element  104  to move, and a flexible connector  107  that electrically connects the battery element  104  to one or more electronic components (such as a circuit assembly  111 , the display assembly  102  of  FIG. 1A  via the circuit assembly  111 , and so on) during the movement. 
     The actuation mechanism  106  may be configured to induce an oscillatory movement of the battery element  104  parallel to the display assembly  102  of  FIG. 1A  to produce haptic output along the display assembly  102  of  FIG. 1A . As used herein, the term “oscillatory movement” may be used to refer to a repeating movement that passes through a central or resting position. It is not necessary that the movement be periodic or have regularly repeating intervals. As used herein, the term “oscillatory movement” may be used to cover repetitive motion that causes a vibration as well as a motion that causes an inertial impulse. 
     By way of illustration, the actuation mechanism  106  may be configured to move the battery element  104  from an initial position shown in one or more directions (or linear paths)  112 . In this example, the actuation mechanism  106  may be a coil assembly that interacts with one or more magnetic elements to induce the oscillatory movement of the battery element  104 . One of the coil assembly or the one or more magnetic elements may be coupled to the battery element  104  while the other is fixed with respect to the enclosure, such as coupled to the enclosure  101  and/or an intermediate element. For example, the coil assembly may be an electromagnetic coil formed in a loop through which alternating current may pass. The alternating current may generate magnetic flux, which may interact with one or more magnetic elements to move the battery element  104  in the one or more directions  112 . In some implementations, the current may be provided from the battery element  104 . However, it is understood that this is an example and that other implementations are possible and contemplated without departing from the scope of the present disclosure. 
     The support mechanism  105  may allow the battery element  104  to move. The support mechanism  105  may allow the battery element  104  to move from an initial position shown in one or more directions  112  and may be operable to subsequently return the battery element  104  to the initial position. For example, the support mechanism  105  may be one or more spring elements (such as a first spring element positioned at a first end of the battery element  104  and configured to produce a first restoring force and a second spring element positioned at a second end of the battery element  104  opposite to the first end and configured to produce a second restoring force opposite to the first restoring force), flexures, gels, deformable materials, and/or similar mechanisms that allow the battery element  104  to move from the initial position and/or subsequently return to the initial position. However, it is understood that this is an example and that other implementations are possible and contemplated without departing from the scope of the present disclosure. 
     The flexible connector  107  may be any kind of electrical and/or communication connector that allows the battery element  104  to remain electrically connected during movement of the battery element  104 , such as to the circuit assembly  111 , to the display assembly  102  of  FIG. 1A  via the circuit assembly  111 , and so on. For example, the flexible connector  107  may be a flex cable or other flexible electrical circuit formed of a flexible substrate (such as polyimide or similar material, metal, and so on) with flexible conductive traces (such as copper or similar material) formed thereon (and/or onto a passivation layer formed thereon) that is operable to stretch, bend, and/or otherwise deform during the movement (such as to provide a restoring force after movement of the battery element  104 ). However, it is understood that this is an example and that other implementations are possible and contemplated without departing from the scope of the present disclosure. 
     Although the above illustrates and describes use of the actuation mechanism  106  to induce an oscillatory movement of the battery element  104  parallel to the display assembly  102  of  FIG. 1A  to produce haptic output along the display assembly  102  of  FIG. 1A , it is understood that this is an example. In various implementations, the actuation mechanism  106  may be used to produce haptic output via the display assembly  102  of  FIG. 1A , one or more input devices such as the crown and/or button illustrated along the side of the enclosure  101 , one or more surfaces of the enclosure  101 , the band shown connected to the enclosure  101 , any combination of these components, and so on. Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
     Although the above illustrates and describes the actuation mechanism  106 , the support mechanism  105 , and the flexible connector  107  as separate components, it is understood that this is an example. In various implementations, one or more of these components may be combined. For example, in various implementations, the support mechanism  105  may both allow motion of the battery element  104  and electrically connect the battery element  104  to one or more other components during the movement. Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
     The battery element  104  may include one or more terminals  109  (such as one or more positive terminals, negative terminals, communication connection terminals, and so on) that connect to the flexible connector  107  and/or a battery protection circuit  108 . Similarly, the circuit assembly  111  may include one or more board connectors  110  (such as one or more power board connectors, communication connection board connectors, and so on). The battery element  104  may connect to the circuit assembly  111  and/or the battery protection circuit  108  via the terminal  109 , the flexible connector  107 , and the board connector  110 . 
     The circuit assembly  111  may include one or more circuit boards, such as a stack formed of multiple circuit boards, an encapsulated chip and substrate combination (such as a System in Package or “SIP”), and so on. The circuit assembly  111  may include one or more processing units and/or other processors or controllers, one or more interfaces to the display assembly  102  of  FIG. 2  and/or various input/output mechanisms (such as one or more connectors that provide power from the battery element  104  to the display assembly  102 ), one or more non-transitory storage media (which may take the form of, but is not limited to, a magnetic storage medium; optical storage medium; magneto-optical storage medium; read only memory; random access memory; erasable programmable memory; flash memory; and so on) and/or one or more connections thereto, and so on. The processing unit and/or other components of the circuit assembly  111  may be operable to control operation of the actuation mechanism  106 , direct movement of the battery element  104 , electrically connect the battery element  104  to other components (such as the display assembly  102  of  FIG. 1A ), control charging and/or discharging of the battery element  104 , monitor a position of the battery element  104  (such as using one or more Hall effect sensors, positivity sensors, and so on) and/or alter control movement of the battery element  104  based thereon (such as to precisely control the oscillatory movement and/or cessation of such movement for generation of precisely controlled haptic output), and so on. In some examples, the circuit assembly  111  may include a drive circuit that is configured to apply an oscillating current to a coil assembly (such as that of the actuation mechanism  106 ). The battery element  104  may provide power to the drive circuit to produce the oscillating current. 
     The battery protection circuit  108  may control charging and/or discharging of the battery element  104 . This may control battery management functions such as monitoring a state of the battery element  104  (such as a charge amount of the battery element  104 , a temperature of the battery element  104 , an amount of power being provided to and/or from the battery element  104 , and so on), altering power being provided to and/or from the battery element  104 , monitoring a position of the battery element  104  (such as using one or more Hall effect sensors, positivity sensors, and so on), and so on. 
     In various implementations, the haptic output may be provided in coordination with one or more graphical elements or items of a graphical user interface presented on a display of the display assembly  102 . By way of example, in some implementations, the haptic output may be provided when a touch is detected to the graphical user interface. In other examples, the haptic output may be provided when a touch is detected that corresponds to the location of a graphical item presented by the graphical user interface. In still other examples, a first haptic output may be provided when a touch is detected and interpreted as a touch input that corresponds to the location of a graphical item presented by the graphical user interface and a second haptic output may be provided when a selection of the graphical item relating to a detected touch duration is detected (which may initiate a change to the presentation of the graphical user interface that corresponds to the selection). Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
     Further, although the above describes haptic output being provided in response to touch detected corresponding to of a graphical user interface presented on a display of the display assembly  102 , it is understood that this is an example. In other implementations, the haptic output may be provided in response to any number of different actions. For example, the haptic output may be provided in response to receipt of an incoming notification, movement of a crown, presses of a solid state and/or other button, application events, alarms, and so on. Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
       FIG. 1C  depicts a cross section of the electronic device  100  of  FIG. 1A , taken along line A-A. In this example, the battery protection circuit  108  may be disposed on the battery element  104  and connected to the battery element  104  via the terminal  109 . Similarly, the battery element  104  may be connected to the circuit assembly  111  via the terminal  109 , the flexible connector  107 , and the board connector  110 . The battery element  104  may also be connected to the enclosure  101  via the support mechanism  105 . 
     As also illustrated, the actuation mechanism  106  may be a coil assembly looped around and coupled to the battery element  104 . The coil assembly may be operative to induce movement of the battery element  104  by generating magnetic flux that interacts with one or more magnetic elements  220  when current is provided to the current assembly. In this example, the magnetic element  220  may be fixed with respect to the enclosure by being coupled to the circuit assembly  111 . As such, the coil assembly may move with the battery element  104  while the magnetic element  220  does not. 
     As further illustrated, the display assembly  102  may include a transparent cover  141  that defines a touch-sensitive surface  143 . A display  142  may be positioned within the enclosure  101  and below the transparent cover  141 . In some implementations, the display  142  may be a touch display. In other implementations, one or more touch sensors may be also be included, and may be positioned above and/or below the display  142 . 
       FIG. 1D  depicts a first alternative example of the haptic device  103  of  FIG. 1C . Similar to  FIG. 1C , the actuation mechanism  106  is operable to move a battery element  104  connected to a circuit assembly  111  via the terminal  109 , the flexible connector  107 , and the board connector  110  by generating magnetic flux that interacts with one or more magnetic elements  220 . By way of contrast with  FIG. 1C , the battery protection circuit  108  of  FIG. 1D  is disposed on the flexible connector  107  instead of the battery element  104  and is connected to the battery element  104  via the flexible connector  107  rather than directly through the terminal  109 . 
       FIG. 1E  depicts a second alternative example of the haptic device  103  of  FIG. 1C . Similar to  FIG. 1C , the actuation mechanism  106  is operable to move a battery element  104  connected to a circuit assembly  111  via the terminal  109 , the flexible connector  107 , and the board connector  110  by generating magnetic flux that interacts with one or more magnetic elements  220 . By way of contrast with  FIG. 1C , the battery protection circuit  108  of  FIG. 1E  is disposed on the circuit assembly  111  instead of the battery element  104  and is connected to the battery element  104  via the board connector  110  and the flexible connector  107  rather than directly through the terminal  109 . 
       FIG. 1F  depicts the battery element  104  of  FIG. 1C  with a portion cut away to show internal components. The battery element  104  may include a case  113  with one or more battery cells  115  (such as one or more jelly roll pouches and/or other battery cells) inside. In some examples, the case  113  may be formed of a protective material, such as steel or other metal or other hard substance. Enclosing the battery cell  115  in the case  113  may function to protect the battery cell  115  from damage that may occur during movement. 
     For example,  FIG. 1G  depicts an example implementation of the battery cell  115 . As shown, the battery cell  115  may include a pouch  115 F enclosing an anode current collector  115 A, anode active material  115 B disposed on the anode current collector  115 A, a cathode current collector  115 D, cathode active material  115 C disposed on the cathode current collector  115 D, and electrolyte  115 E positioned between the anode current collector  115 A and the cathode current collector  115 D around the anode active material  115 B and the cathode active material  115 C. However, it is understood that this is an example and that in other implementations other battery cell  115  configurations are possible without departing from the scope of the present disclosure. 
     The composition of the battery cells  115  may also be configured to protect the battery cell  115  from damage that may occur during movement. One challenge to vibrating batteries may be faster battery capacity degradation over time. Many battery cells  115  may include electrode particles (such as in the anode active material  115 B and/or the cathode active material  115 C) mixed with a binder, such as an adhesive. Once cured, the material may be brittle and vibration may induce cracking and flaking in the battery cell  115 . One solution may involve increasing binder ratio of electrode coatings over typical battery cell  115  composition. This may increase adhesion to electrode foils and make the battery cells  115  less vulnerable to damage from the movement. This ratio may typically be minimized to maximize battery capacity as it swaps inactive material for active, but the damage prevention may make the tradeoff worthwhile, particularly as combining batteries and haptic weights may allow for increased battery sizes, making up for any potential lost battery capacity due to the increased binder ratio. Additionally, this may result in a reduced battery capacity initially, but may make up the reduction in rate of capacity degradation over time due to being less vulnerable to damage. By way of other examples, inner metal foil thicknesses may be increased. This may make battery cells  115  more robust to dynamic stress and tearing. In yet another example, increased separator overhangs in battery cells  115  (such as in jelly roll battery cells) may cushion impact that can occur during dynamic stress. By way of illustration, the anode current collector  115 A and the cathode current collector  115 D extend further than the anode active material  115 B and the cathode active material  115 C such that the overhang defined by the anode current collector  115 A and the cathode current collector  115 D prevent impact of the anode active material  115 B and/or the cathode active material  115 C. 
     Other components may be used beyond battery cell  115  configurations to prevent damage. For example, wave forms may be used to drive actuation mechanisms that move the battery element  104  to maximize voltage potential with the presence of vibrations. By way of another example, battery cells may be oriented to maximize voltage potential with vibrations. In still other examples, foam or other cushioning material may be added to the case  113  to cushion impact of the battery cell  115 . 
       FIG. 1H  depicts example functional relationships among example components that may be used to implement the example electronic device  100  of  FIG. 1A . For example, a processing unit  180  may be operative to execute instructions stored in a non-transitory storage medium  181  to perform various functions. Such functions may include providing output via a display  142 , a speaker  182 , a haptic device  103 , and/or other output components. Such functions may also include obtaining input, such as via a microphone  183 , a touch sensor included in and/or associated with the display  142 , and so on. 
       FIG. 2A  depicts a second example haptic device  203 . The haptic device  203  may include a battery element  204 , support mechanisms  205 , and an actuation mechanism  206 . By way of contrast with the haptic device  103 , the support mechanism  205  may be a flexure formed of a piece of a rigid material that is bent into a “V” shape to define two arms connected by a joint. The support mechanisms  205  may allow the battery element  204  to move by bending and allowing the ends of the two arms of the “V” to approach each other. Due to the rigidity of the material, the support mechanisms  205  may then unbend (which may exert a restoring force), allowing the ends of the two arms of the “V” to move away from each other again. 
     In some examples, the support mechanisms  205  may be formed of one or more conductive materials. In such an example, the support mechanisms  205  may also operate as a flexible connector that electrically connects the battery to one or more other components. 
     Similar to the haptic device  103 , the actuation mechanism  206  may be a coil assembly including an electromagnetic coil wrapped in a loop around the battery element  204  through which current may be run in a direction  221  to generate magnetic flux that interacts with first and second magnetic elements  220 A,  220 B to produce the movement in a direction  222 . By way of contrast with the haptic device  103 , the first and second magnetic elements  220 A,  220 B may be coupled to the battery element  204  whereas the coil assembly is fixed. As such, the first and second magnetic elements  220 A,  220 B may move with the battery element  204  while the coil assembly does not. 
       FIG. 2B  depicts the haptic device  203  of  FIG. 2A  with the support mechanisms  205  and the actuation mechanism  206  removed. The battery element  204  may extend around the first and second magnetic elements  220 A,  220 B. As such, the battery element  204  may define internal first and second opposing sides to which the first and second magnetic elements  220 A,  220 B are respectively coupled. Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
       FIG. 3A  depicts a third example haptic device  303 . The haptic device  303  may include a battery element  304 , support mechanisms  305 , and an actuation mechanism  306 . By way of contrast with the haptic device  103 , the battery element  304  may define first and second opposing sides to which the first and second magnetic elements  320 A,  320 B are respectively coupled. The support mechanism  305  may also be coupled to the first and second magnetic elements  320 A,  320 B. 
     Similar to the haptic device  103 , the actuation mechanism  306  may be a coil assembly including an electromagnetic coil wrapped in a loop to generate magnetic flux that interacts with first and second magnetic elements  320 A,  320 B to produce the movement. By way of contrast with the haptic device  103 , the loop may be wrapped in a plane parallel to the battery element  304  such that the battery element  304  is positioned outside of the loop. As such, the first and second magnetic elements  320 A,  320 B may move with the battery element  304  while the coil assembly does not. Further, the loop may define a cavity  321  in which other components may be disposed. Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
     Although  FIG. 3A  is illustrated and described as including the first and second magnetic elements  320 A,  320 B that interact with the magnetic flux produced by the electromagnetic coil of the actuation mechanism  306  to produce the movement, it is understood that this is an example. In other implementations, the first and second magnetic elements  320 A,  320 B may be omitted. 
     For example,  FIG. 3B  depicts an alternative example of the third example haptic device  303 . In this example, a case or similar structure of the battery element  304  may be formed from a welded ferrous material or other material that interacts with the magnetic flux produced by the electromagnetic coil of the actuation mechanism  306  to produce the movement. As such, the case of the battery element  304  may itself be a magnetic element and a separate magnetic element may be omitted. 
       FIG. 4  depicts a fourth example haptic device  403  that includes a battery element  404  with a portion cut away to show internal components. Similar to the haptic device  103 , the actuation mechanism  406  may be a coil assembly including an electromagnetic coil wrapped in a loop to generate magnetic flux that interacts with first and second magnetic elements  420 A,  420 B to produce the movement. By way of contrast with the haptic device  103 , the battery element  404  may include one or more battery cells  415  inside a case  413  where the first and second magnetic elements  420 A,  420 B are embedded within the battery cells  415  and/or the case  413 . In other words, the battery element  404  may define a cavity within which the second magnetic elements  420 A,  420 B may be disposed. Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
       FIG. 5A  depicts a fifth example haptic device  503 .  FIG. 5B  depicts an exploded view of the battery element  504  of  FIG. 5A . With respect to  FIGS. 5A and 5B , similar to the haptic device  303  of  FIG. 3A , the actuation mechanism  506  may be a coil assembly that interacts with first and second magnetic elements  520 A,  520 B coupled to first and second opposing sides defined by a battery element  504 . However, unlike the haptic device  403 , the battery element  504  may define a shelf  522  ( FIG. 5B ) around which the coil assembly may be looped such that there is no cavity  321 . Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
     The coil assembly in  FIG. 5A  is shown as flush with the combined assembly of the battery element  504  and the first and second magnetic elements  520 A,  520 B. However, it is understood that this is an example. For example,  FIG. 6A  depicts a sixth example haptic device  603  where a coil assembly of an actuation mechanism  606  extends flush with first and second magnetic elements  620 A,  620 B but extends over a battery element  604 . This may define a cavity  623  where other components may be located.  FIG. 6B  depicts a bottom view of the haptic device  603  of  FIG. 6A . This illustrates how the actuation mechanism  606  hangs over the battery element  604  but not the first and second magnetic elements  620 A,  620 B. Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
     Although the magnetic elements  220 A,  220 B,  320 A,  320 B,  420 A,  420 B,  520 A,  520 B, and  620 A,  620 B are illustrated in  FIGS. 2A-6  as having a particular polarity configuration, it is understood that these are examples. In various examples, magnetic elements with a variety of different polarity configurations may be used without departing from the scope of the present disclosure. 
       FIG. 7  depicts a seventh example haptic device  703 . In this example, flexures  705  contact a positive terminal  709 A, a negative terminal  709 B of a battery element  704 , and an enclosure  701 . The flexures  705  may be configured to bend to allow motion of the battery element  704  from an initial position in one or more directions  712  and then unbend to return the battery element  704  to the initial position. The flexures  705  may also be formed of a conductive material to electrically connect the positive terminal  709 A and the negative terminal  709 B to one or more other components. 
     In some implementations, the flexures  705  may be formed of a single piece of conductive material. This may enable a single conductive pathway to and/or from the positive terminal  709 A and/or the negative terminal  709 B. However, it is understood that this is an example. Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
     By way of example,  FIG. 8  depicts an alternative example of a flexure  805  that may be used as one of the flexures in the haptic device of  FIG. 7 . The flexure  805  may be formed of a substrate  824  and a flexible circuit laminate formed on the substrate  824  made up of a nonconductive base  825  and one or more traces  826  formed on the nonconductive base  825 . The flexure  805  may include two straight segments that are connected by a joint. The joint may be configured to bend in response to the movement of the battery element. 
     The traces  826  may enable one or more different electrical and/or communication pathways in and/or out of a battery element, such as the battery element  704  of  FIG. 7 . For example, the traces  826  may electrically and/or communicably connect a battery protection circuit  808  included on the flexure  805  to such a battery element. 
     For example, the substrate  824  may be formed of a rigid material that enables the flexure  805  to bend under the application of force and unbend when the force is no longer exerted, such as metal, and the nonconductive base  825  may be formed of a material that electrically isolates the traces  826  from the substrate  824 , such as polyimide. In other examples, the substrate  824  may be formed of a nonconductive material and the nonconductive base  825  may be omitted. 
     In various implementations, one or more conductive materials may be disposed over one or more portions of the traces  826 . This may prevent unintended electrical contact with the covered portions of the traces  826  while allowing electrical contact with the uncovered portions of the traces  826 . Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
       FIG. 9  depicts an eighth example haptic device  903 . In this example, a flexible connector  907  formed of a flexible circuit cable is coupled to a battery element  904  moveable in one or more directions  912 . The flexible circuit cable is configured with a bend  925  positioned approximately perpendicular to the directions  912  that may function as a pulley to allow the battery element  904  to remain electrically connected during movement. Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
       FIG. 10  depicts a ninth example haptic device  1003 . Similar to the haptic device  903 , the haptic device  1003  includes a flexible connector  1007  formed of a flexible circuit cable coupled to a battery element  1004  moveable in one or more directions  1012 . Unlike the haptic device  903 , the bend  1026  in the flexible circuit cable in the haptic device  1003  may deform (bend and/or unbend) in the directions  1012  rather than acting as a pulley. Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
       FIG. 11  depicts a tenth example haptic device  1103 . In this example, a battery element  1104  includes a set of electrical contact plates  1128  that are configured to electrically connect to electrical contact plates  1127 . These pairs of electrical contact plates  1127 ,  1128  are configured to slide along each other and allow motion of the battery element  1104  while remaining electrically connected. Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
       FIG. 12  depicts an eleventh example haptic device  1203 . Similar to the haptic device  1103 , the haptic device  1203  includes pairs of electrical contact plates  1229 ,  1230  that are configured to slide along each other and remain electrically connected while a battery element  1204  moves. By way of contrast with the haptic device  1103 , the haptic device  1203  includes conductive ball bearings  1231  positioned between the pairs of electrical contact plates  1229 ,  1230 . Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
       FIG. 13  depicts a twelfth example haptic device  1303 . In this example, a battery element  1304  is moveably mounted to an enclosure  1301  using support mechanisms  1305 . An actuation mechanism  1306  is operable to move the battery element  1304  by actuating a pulley system  1332  including a pulley driver that is connected to the battery element  1304  via a belt. Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
       FIG. 14  depicts a thirteenth example haptic device  1403 . In this example, a battery element  1404  is supported between two piezoelectric elements  1406  by a pair of support mechanisms  1405 . The two piezoelectric elements  1406  may be coupled to an enclosure  1401 . Current may be applied to one or more of the piezoelectric elements  1406  to cause that piezoelectric element  1406  to deform toward and/or away from the battery element  1404 . This may move the respective support mechanism  1405 , producing an oscillatory movement of the battery element  1404 . Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
     In several of the above examples, the described haptic devices may include battery elements that may be directly connected to the variously described actuation mechanisms, support mechanisms, and/or flexible connectors. In other examples, modular configurations may be used such that the battery elements may be removably coupled to such structures. For example,  FIG. 15A  depicts a fourteenth example haptic device  1503 . In this example, a battery element  1504  may be coupled to an aperture  1537  of a tray  1534 . The tray  1534  may be electrically and mechanically connected to other components (e.g., component  1501 , which may be an enclosure for a watch, a frame within an enclosure, or any other suitable component) via conductive flexures  1505  that contact retaining ring terminals. The tray  1534  may include a connector  1536  that contacts a terminal  1509  of the battery element  1504  when the battery element  1504  is coupled to the aperture  1537  of the tray  1534 .  FIG. 15B  depicts the haptic device  1503  of  FIG. 15A  with the battery element  1504  coupled to the tray  1534 . In this way, the battery element  1504  may be removably coupled to other components via the terminal  1509 , the connector  1536 , the terminals of the tray  1534 , and the conductive flexures  1505 . Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
     Although  FIGS. 1A-1H  illustrate and describe an electronic device  100  that may be an electronic watch having a display assembly  102  and a haptic device  103  with an actuation mechanism  106  that involves a coil assembly interacting with one or more magnetic elements, it is understood that this is an example. In other examples, other kinds of electronic devices that may or may not have displays and may use other kinds of force producing mechanisms for haptics without departing from the scope of the present disclosure. 
     For example,  FIG. 16  depicts an internal view of alternative electronic device  1600  that includes a haptic device  1603  disposed within a housing  1601 . The haptic device  1603  may include a battery element  1604  coupled to an actuation mechanism  1606  by a support mechanism  1605 . In this example, the electronic device  1600  may be a stylus or other electronic device that may not include a display. Further in this example, the support mechanism  1605  may be one or more springs and the actuation mechanism  1606  may be one or more piezoelectric elements that are coupled to the housing  1601 . Current may be applied to one or more of the piezoelectric elements to cause that piezoelectric element to deform toward and/or away from the battery element  1604 . This may move the support mechanism  1605 , causing the battery element  1404  to move in one or more directions  1612 . Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
     The above illustrates and describes a number of embodiments. It is understood that these are examples. In various implementations, one or more features from one or more embodiments may be combined and/or used with one or more other embodiments. Various configurations are possible and contemplated without departing from the scope of the present disclosure. 
     In various implementations, an electronic watch may include an enclosure having a transparent cover defining a touch-sensitive surface, a display positioned within the enclosure and below the transparent cover, and a haptic device configured to produce a haptic output along the touch-sensitive surface. The haptic device may include a battery element electrically coupled to the display, a magnetic element, and a coil assembly fixed with respect to the enclosure and configured to induce an oscillatory movement of the battery element parallel to the display to produce the haptic output. 
     In some examples, the battery element may define a first surface and a second surface opposite to the first surface; the magnetic element may include a first magnetic element and a second magnetic element; the first magnetic element may be coupled to the battery element along the first surface and positioned between the battery element and the display; the second magnetic element may be coupled to the battery element along the second surface; and the coil assembly may extend around the battery element, the first magnetic element, and the second magnetic element. In various examples, the magnetic element may include a first magnetic element and a second magnetic element and the battery element may extend around at least a portion of the first magnetic element and at least a portion of the second magnetic element. In a number of examples, the first magnetic element and the second magnetic element may be disposed within the battery element. 
     In various examples, a current may be applied to the coil assembly from the battery element to induce the oscillatory movement. In some examples, the coil assembly may extend around the battery element. In a number of examples, the coil assembly may extend in a direction parallel to the battery element. 
     In some implementations, an electronic watch may include an enclosure having a transparent cover defining a touch-sensitive surface, a display positioned within the enclosure and below the transparent cover, and a haptic device configured to produce a haptic output along the touch-sensitive surface. The haptic device may include a battery element electrically coupled to the display, a magnetic element, and a coil assembly fixed with respect to the enclosure and configured to induce an oscillatory movement of the battery element in a direction that is parallel to at least a portion of the display to produce the haptic output. 
     In some examples, the battery element may define a first surface and a second surface opposite to the first surface, the magnetic element may include a first magnetic element and a second magnetic element, the first magnetic element may be coupled to the battery element along the first surface and positioned between the battery element and the display, the second magnetic element may be coupled to the battery element along the second surface, and the coil assembly may extend around the battery element, the first magnetic element, and the second magnetic element. In various examples, the magnetic element may include a first magnetic element and a second magnetic element and the battery element may extend around at least a portion of the first magnetic element and at least a portion of the second magnetic element. In some examples, the magnetic element may be a case of the battery element or the magnetic element may be a first magnetic element and a second magnetic element disposed in a cavity defined within the battery element. In a number of examples, the electronic watch may further include a drive circuit, the drive circuit may be configured to apply an oscillating current to the coil assembly, and the battery element may provide power to the drive circuit to produce the oscillating current. 
     In various examples, the haptic device may further include a first spring element positioned at a first end of the battery element and configured to produce a first restoring force and a second spring element positioned at a second end of the battery element opposite to the first end and configured to produce a second restoring force opposite to the first restoring force. In a number of such examples, the electronic watch may further include electronic circuitry having a processing unit, the electronic circuitry may be positioned along a side of the battery element that is opposite to the display, and the first spring element may be a flexible circuit element having one or more conductive power traces that electrically couple the battery element to the electronic circuitry. 
     In some implementations, an electronic watch may include an enclosure having a transparent cover, a touch-sensitive display positioned within the enclosure and below the transparent cover, and a haptic device configured to produce a haptic output along an exterior surface of the electronic watch. The haptic device may include a battery element electrically coupled to the touch-sensitive display, a first magnetic element fixed with respect to the enclosure, a second magnetic element fixed with respect to the enclosure, and a coil assembly fixed with respect to the battery element and configured to induce an oscillatory movement of the battery element parallel to at least a portion of the touch-sensitive display to produce the haptic output. 
     In various examples, the electronic watch may further include a drive circuit that is electrically coupled to the battery element and the drive circuit may be electrically coupled to the coil assembly and may be configured to produce a drive signal that induces the oscillatory movement of the battery element. In some examples, the haptic output may be produced in response to touch input detected by the touch-sensitive display and a graphical output of the touch-sensitive display may be modified in response to the touch input. In a number of examples, the oscillatory movement may produce a vibration that is tactilely perceptible along an outer surface of the transparent cover. In various examples, the oscillatory movement may produce an inertial pulse that is tactilely perceptible along an outer surface of the electronic watch. In a number of examples, the electronic watch may further include a circuit assembly positioned along a lower side of the battery element and the haptic device may further include a flexible electrical circuit that electrically connects the battery element to the circuit assembly. In some such examples, the flexible electrical circuit may be attached to a flexure element that may be configured to provide a restoring force to the battery element. 
     In a number of implementations, an electronic device may include an enclosure having a transparent cover, a touch sensor positioned below the transparent cover and configured to detect touch input along an outer surface of the transparent cover, a display positioned within the enclosure and below the transparent cover, a battery element disposed within the enclosure below the display, an actuation mechanism that is operable to move the battery element along a linear path that is parallel to a portion of the display to provide an inertial output that is tactilely perceptible along the outer surface of the transparent cover and a flexure that deforms in response to movement of the battery element and provides a restorative force to the battery element. The flexure may include a set of conductive traces that electrically connects the battery element to the display during the movement. 
     In some examples, the electronic device may be configured to cause the actuation mechanism to move the battery element in response to detecting the touch input along the outer surface of the transparent cover. In a number of examples, the electronic device may further include a circuit assembly positioned along a side of the battery element and the flexure may include a flexible metal substrate and a flexible circuit laminate disposed on the flexible metal substrate, the flexible circuit laminate including a set of conductive traces that electrically couples the battery element to the circuit assembly. In some such examples, the flexible circuit laminate may include multiple conductive traces. 
     In various examples, the flexure may include two straight segments that are connected by a joint and the joint may be configured to bend in response to the movement of the battery element. In some examples, the electronic device may further include a tray that is configured to receive the battery element, the tray may at least partially surround the battery element, and the tray may move with the battery element when the battery element is moved by the actuation mechanism. 
     Although a number of embodiments are illustrated and described above, it is understood that these are examples and are not intended to be limiting. In various implementations, features from one or more different embodiments may be variously combined without departing from the scope of the present disclosure. Numerous configurations are possible and contemplated. 
     As described above and illustrated in the accompanying figures, the present disclosure relates to a haptic device that moves a battery element. The haptic device may be included in an electronic device, such as an electronic watch. The haptic device may include the battery element, an actuation mechanism that is operable to move the battery element, a support mechanism that is operable to allow the battery element to move, and a flexible connector that electrically connects the battery element to another component during the movement. 
     The foregoing description, for purposes of explanation, used specific nomenclature to provide a thorough understanding of the described embodiments. However, it will be apparent to one skilled in the art that the specific details are not required in order to practice the described embodiments. Thus, the foregoing descriptions of the specific embodiments described herein are presented for purposes of illustration and description. They are not targeted to be exhaustive or to limit the embodiments to the precise forms disclosed. It will be apparent to one of ordinary skill in the art that many modifications and variations are possible in view of the above teachings.

Metadata:
Filing Date: 20200529
Publication Date: 20220517
Grant Date: 20220517
Priority Date: 20190722
Inventors: FU, Jody C.
DE JONG, ERIK G.
PASMA, CHRISTOPHER R.
CHEMELEWSKI, Katharine R.
EHMAN, Rex T.
SIMERAL, BRAD W.
Assignee: APPLE INC
CPC Classifications: [{"code": "G06F2203/014", "inventive": false, "first": false, "tree": "[]"}, {"code": "G04G19/00", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/016", "inventive": true, "first": true, "tree": "[]"}, {"code": "G06F3/016", "inventive": true, "first": false, "tree": "[]"}, {"code": "G04G21/08", "inventive": true, "first": false, "tree": "[]"}, {"code": "G04G17/08", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/041", "inventive": true, "first": false, "tree": "[]"}, {"code": "G04G17/04", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F1/163", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F1/1635", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F1/163", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/016", "inventive": true, "first": true, "tree": "[]"}, {"code": "G04G21/08", "inventive": true, "first": true, "tree": "[]"}, {"code": "G04G17/04", "inventive": true, "first": false, "tree": "[]"}, {"code": "G04G21/08", "inventive": true, "first": false, "tree": "[]"}, {"code": "G04G17/04", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/041", "inventive": true, "first": false, "tree": "[]"}, {"code": "G04G17/04", "inventive": true, "first": false, "tree": "[]"}, {"code": "G06F3/016", "inventive": true, "first": true, "tree": "[]"}, {"code": "G04G21/08", "inventive": true, "first": false, "tree": "[]"}]
Family ID: 71096625