Wristband with magnetic coupling

Abstract

The wristband (108) can comfortably secure an electronic device (100) such as a wristwatch or fitness / health tracking device to a user's wrist (2). The wristband (108) can include a plurality of magnets that allow the wristband (108) to magnetically couple to itself when folded over or when separate band portions overlap. The magnets can include a polymer mixed with a magnetic material to provide magnetic properties and flexibility. The magnets can be joined together by a continuous support structure extending through opposing pairs of magnets. The support structure can provide firmness and capacity as well as tensile strength. The magnets and the support structure can be surrounded by a flexible cover to protect the components therein.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. Provisional Application No. 62 / 851,532, filed May 22, 2019, entitled “WRISTBANDS WITH MAGNETIC COUPLING,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present invention generally relates to securing of wearable devices, and more particularly to a wristband with magnetic coupling. Background Art

[0004] Some electronic devices can be removably attached to the user. For example, a wristwatch or fitness / health tracking device can be attached to the user's wrist by joining the free ends of the wristband together. In many cases, the wristband may have limited available adaptation adjustment increments. For example, some bands have incremental user adjustable sizes (e.g., buckles, pins and eyelets, etc.), while other bands have substantially fixed sizes that can only be adjusted with specialized tools and / or expertise (e.g., folding clasps, unfolding clasps, snap-on clasps, etc.). Other bands can be elastic stretch bands that stretch to fit around the user's wrist, flexible bands that include buckles, or metal bands that include metal clasps. The comfort and fixation of the electronic device may depend on the function and arrangement of the wristband. However, conventional bands may have negative aspects and may unexpectedly fail before the wearable electronic device fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Certain features of the subject technology are set forth in the appended claims. However, for purposes of explanation, several embodiments of the subject technology are set forth in the following drawings.

[0006] Figure 1 A perspective view of the watch on a user's wrist is shown.

[0007] Figure 2 Shows Figure 1 Another perspective of the watch on the user's wrist.

[0008] Figure 3 A side view of a watch with a wristband is shown.

[0009] Figure 4 A top view of the wristband is shown.

[0010] Figure 5 Shows Figure 4 A cross-sectional view of a wristband.

[0011] Figure 6 Shows Figure 4An exploded perspective view of a portion of a wristband.

[0012] Figure 7 Shows a cross section taken along line BB Figure 5 A cross-sectional view of the external portion of the wristband.

[0013] Figure 8 Shows a cross section taken along line CC Figure 5 A cross-sectional view of the external portion of the wristband.

[0014] Fig. 9 A schematic diagram of a wristband is shown.

[0015] Fig.10 Shown in a first configuration Fig. 9 A cross-sectional view of the overlapping portion of the wristband.

[0016] Fig.11 Shown in the second configuration Fig. 9 A cross-sectional view of the overlapping portion of the wristband.

[0017] Fig.12 A schematic diagram of a wristband is shown.

[0018] Fig.13 Shown in a first configuration Fig.12 A cross-sectional view of the overlapping portion of the wristband.

[0019] Fig.14 Shown in the second configuration Fig.12 A cross-sectional view of the overlapping portion of the wristband.

[0020] Fig.15 A schematic diagram of a wristband is shown.

[0021] Fig.16 An exploded perspective view of a connector for a wristband is shown.

[0022] Fig.17 Shows Fig.16 A perspective view of the connector.

[0023] Fig.18 A cross-sectional view of the end of a belt including a connector is shown.

[0024] Fig.19 A cross-sectional view of the end of a belt including a connector is shown.

[0025] Fig. 20 A schematic diagram of a system for magnetizing a wristband is shown.

[0026] Fig.21 Shows a cross section taken along line AA Figure 3 A cross-sectional view of an example of overlapping portions of a wristband.

[0027] Fig. 22 A schematic diagram of a system for magnetizing a wristband is shown.

[0028] Fig.23 Shows a cross section taken along line AA Figure 3 A cross-sectional view of another example of overlapping portions of a wristband.

[0029] Fig.24 A schematic diagram of a system for magnetizing a wristband during a first phase is shown.

[0030] Fig.25 A schematic diagram of a system for magnetizing the wristband during the second phase is shown.

[0031] Fig.26 A schematic diagram of a system for magnetizing the wristband during the third phase is shown.

[0032] Fig. 27 A side view of a watch with a wristband is shown.

[0033] Fig.28 Shows a cross section along line DD Fig. 27 A cross-sectional view of an example of overlapping portions of a wristband.

[0034] Fig.29 A schematic diagram of a wristband is shown.

[0035] Fig.30 A schematic diagram of a wristband is shown.

[0036] Fig.31 A side view of a watch with a wristband is shown. DETAILED DESCRIPTION

[0037] The specific implementations set forth below are intended to be descriptions of various specific implementations, and are not intended to represent the only specific implementations of the practical subject technology. As will be appreciated by those skilled in the art, the specific implementations described can be modified in various ways, all of which do not depart from the scope of the present disclosure. Therefore, the drawings and descriptions are to be considered illustrative rather than restrictive in nature.

[0038] An electronic device such as a wristwatch or a fitness / health tracking device may be attached to a user's wrist via a wristband. Conventional elastic bands may lose elastic properties over time and may become too large for the user's wrist. Due to the force applied to the holes of the flexible band by the tongue of the buckle, the other materials forming the flexible band may tear or deteriorate over time. A metal band including a metal buckle may include multiple components that are all coupled together, which may fail, become decoupled, or otherwise malfunction over time. When a conventional wearable band fails and / or is unable to securely attach the electronic device to the user's wrist, the band needs to be replaced and / or the wearable electronic device may be susceptible to damage.

[0039] It may be desirable to maintain a secure attachment to the wrist so that the electronic device does not shift excessively or slip off the user's wrist. The fixation of the electronic device close to the user may also be important for the function of electronic magnets such as biometric sensors. In addition, it may be desirable to maximize the comfort of the user when wearing the electronic device. Typically, secure attachment may exert an undesirable amount of force on the user's wrist. In many cases, if the band is too tight, a conventional wristband may entangle, clamp, or pull the user's hair or skin during use. In other cases, if the band is too loose, the wristband may slide along the user's wrist, rotate around the user's wrist, or may otherwise make the user uncomfortable or distressed. These problems may be exacerbated during strenuous exercise, such as when running or playing sports.

[0040] In addition, adjusting the size or fit of a conventional wristband generally requires multiple steps, special tools, and / or technical expertise. The sizing options available to the user may not be sufficient to obtain the proper fit. Given a particular environment (e.g., temperature, humidity) or biological condition (e.g., sweat, inflammation), the fit may be different and / or may be perceived as different. Therefore, users of conventional wristwatches and / or fitness / health tracking devices may select a permissible (although not optimally comfortable) fit, thereby keeping the band tight for fitness / health tracking devices and keeping the band loose for conventional wristwatches. However, some wearable electronic devices may be multi-purpose devices, providing both fitness / health tracking and timing functions. Therefore, users may prefer the fit of the band to vary with use. For example, users may prefer a looser fit in timing mode and a tighter fit in fitness / health tracking mode. Therefore, there is a need for a system and method for dynamically adjusting the fit of a wearable electronic device.

[0041] In addition, it may be desirable to provide a wristband that is provided with a magnetic coupling to easily secure and adjust the wristband. To enhance comfort, it may be desirable to provide the magnetic component with significant flexibility to obtain greater comfort when worn by a user.

[0042] Embodiments of the present disclosure provide a magnetic attachment mechanism to provide a secure attachment to the user and also provide enhanced comfort. For example, magnetic coupling can be achieved with flexible magnets that are more comfortable than rigid magnets while still providing secure attachment and convenient adjustment to the user. Embodiments of the present disclosure provide the convenience of user adjustment as well as secure attachment to avoid accidental release under external forces.

[0043] According to some embodiments, the wristband may include: a flexible magnet, wherein each of the flexible magnets includes a mixture of a polymer and a ferromagnetic material; and a flexible cover that surrounds the flexible magnet. According to some embodiments, the wristband may include: a plurality of opposing pairs of magnets; a support structure that extends between each pair of the opposing pairs of magnets; and a cover that surrounds the magnets. According to some embodiments, the wristband may include: a support structure; a first magnet on a first side of the support structure; and a second magnet on a second side of the support structure, wherein the opposing pairs of first and second magnets are symmetrical relative to each other across the support structure.

[0044] References below Figures 1 to 26 These and other embodiments are discussed. However, those skilled in the art will readily appreciate that the detailed description given herein with respect to these drawings is for illustrative purposes only and should not be construed as limiting.

[0045] refer to Figure 1 and Figure 2 , shows an example of a wearable electronic device, such as a watch 10. Although Figure 1 The device is illustrated as a watch 10, but it should be understood that the features described herein with respect to the watch 10 may be applied to a variety of other devices, such as other wearable devices, other electronic devices, portable computing devices, fitness / health tracking devices, mobile phones, smartphones, tablet computers, laptops, cameras, timing devices, computerized glasses, and other wearable navigation devices, displays, sports equipment, accessory devices, health monitoring devices, medical devices, wristbands, bracelets, jewelry, and the like.

[0046] like Figure 1 As shown, the watch 10 includes an electronic device 100 (e.g., the body of the watch), which is worn on the wrist 2 using a wristband 108. The electronic device 100 can be portable and also attached to other body parts of the user or other devices, structures or objects. The wristband 108 can be flexible and surround at least a portion of the user's wrist 2. By securing the electronic device 100 to the user, the wristband 108 provides security and convenience. In some embodiments, the electronic device 100 includes a display 104 and a housing 102 for containing magnets. As shown in FIG. Figure 2As shown, the wristband 108 extends to the side of the wrist 2 opposite to the electronic device 100. The wristband 108 includes a first segment 400 and a second segment 402 that overlap and are magnetically coupled to each other.

[0047] Reference now Figure 3 , the wristband 108 is adjustable to fit securely and comfortably on the wrist 2 by selecting the degree of overlap between the first segment 400 and the second segment 402. For example, the diameter of the wristband 108 is adjustable to fit securely and comfortably on the wrist 2. The wristband 108 is removably attached to a portion (e.g., the channel 106) of the housing 102 of the electronic device 100 using the first connector 204. The wristband 108 is removably attached to another portion of the housing 102 of the electronic device 100 using the retaining ring 208. Therefore, the wristband can be removed from the electronic device 100, allowing the user to switch the wristband as needed or desired. A portion of the wristband 108 passes through the hole of the retaining ring 208, so that the length of the first segment 400 and the length of the second segment 402 are defined on either side of the retaining ring 208.

[0048] The contact surface 202 of the wristband 108 can be positioned to contact the user's wrist. Along the first section 400, the contact surface 202 faces inwardly toward the wrist. Along the second section 402, the contact surface 202 continues as an outwardly facing surface. The engagement surface 200 of the wristband 108 can be positioned to contact itself when the wristband 108 is folded onto itself or when the portions otherwise overlap each other. Along the first section 400, the engagement surface 200 faces outwardly away from the wrist. Along the second section 402, the engagement surface 200 faces inwardly toward the first section 400 and is opposite to the portion of the engagement surface 200 that extends along the first section 400. A magnet is disposed near at least the engagement surface 200 to magnetically couple the first section 400 to the second section 402, as further described herein.

[0049] See now Figure 4, the first connector 204 and the free end 212 are located at or near the end of the wristband 108. The retaining ring 208 is slidably connected to the strip portion 110 of the wristband 108 and provides a connection to the housing of the electronic device. The retaining ring 208 may have a second connector 205 similar to the first connector 204 of the strip portion 110, and an opening 214 through which the strip portion 110 may extend. At least one cross-sectional dimension of at least a portion of the free end 212 is greater than at least one cross-sectional dimension of the opening 214. For example, a portion of the free end 212 may have a lateral cross-sectional dimension transverse to the longitudinal axis of the wristband 108 that is greater than the lateral cross-sectional dimension of the opening 214. It should be understood that such a free end 212 is not required, but may optionally be passed through the opening 214 to remove the strip portion 110 from the retaining ring 208. It should also be understood that the length of the retaining ring 208 between the second connector 205 and the opening 214 may be greater than Figure 4 Length shown.

[0050] Figure 5 1 shows a cross-sectional view of a strap portion 110 of a wristband 108. The wristband 108 may include a plurality of first magnets 406 and second magnets 408 distributed along the longitudinal length of the wristband 108. More specifically, as Figure 5 As shown, the wristband 108 may include: a first group of first magnets 406, the first group of first magnets along the first segment 400 located adjacent to the first connector 204; and a second group of second magnets 408, the second group of second magnets along the second segment 402 located adjacent to the free end 212 and opposite to the first group of first magnets 406. The first magnets 406 and the second magnets 408 may be evenly distributed along the longitudinal length of the wristband 108. Additional magnets or other inserts may be provided, for example, between the first group of first magnets 406 and the second group of second magnets 408.

[0051] The first set of first magnets 406 and the second set of second magnets 408 may be formed of materials that may include magnetic properties (e.g., magnetic fields, magnetic attraction, etc.). In a non-limiting example, each of the first magnets 406 within the first segment 400 may generate a first magnetic field, and each of the second magnets 408 within the second segment 402 may generate a second magnetic field. The second magnetic field of one or more second magnets 408 may be different (e.g., larger or differently oriented) than the first magnetic field of one or more first magnets 406. As further discussed herein, when the wristband 108 is folded over itself or when the portions are otherwise overlapped with each other, one or more of the second magnets 408 may be magnetically attracted and / or coupled to one or more of the first magnets 406 to couple the wristband 108 and the electronic device to the user.

[0052] As used herein, "magnets" may include magnets of hard magnetic materials and / or magnets of soft magnetic materials. Hard magnetic materials include materials that retain their magnetism even after the applied magnetic field is removed. Magnets including hard magnetic materials can form permanent magnets. Hard magnetic materials include neodymium (NdFeB), ferrite, AlNiCo, iron neodymium, iron boron, samarium cobalt, iron chromium cobalt, and combinations or alloys thereof. Soft magnetic materials include materials that respond to a magnetic field but do not retain their magnetism after the applied magnetic field is removed. Magnets including soft magnetic materials can form temporary magnets. Soft magnetic materials include iron, iron cobalt, iron silicon (FeSi), steel, stainless steel, iron aluminum silicon, nickel iron, ferrite, and combinations or alloys thereof. It should be understood that "hard magnet" and "soft magnet" are not necessarily related to the stiffness of the material.

[0053] One or more of the magnets of wristband 108 can be flexible. In order to provide the desired flexibility, each of the flexible magnets can include a mixture of a polymer and a magnetic (e.g., hard magnetic or soft magnetic) material. The polymer can include, for example, an elastomer, rubber, silicone, fluoroelastomer, FKM (containing vinylidene fluoride), neoprene, and / or a combination thereof. The polymer can be mixed with a powder or other component of a magnetic material to form a flexible magnet.

[0054] The first magnet 406 and / or the second magnet 408 can be a single magnet or a multi-pole magnetic structure. For example, the first magnet 406 and / or the second magnet 408 can each be composed of a single integral magnet. As another example, the first magnet 406 and / or the second magnet 408 can each be composed of a plurality of separate magnets. In the case where the first magnet 406 and / or the second magnet 408 are composed of a plurality of separate magnets, the corresponding magnets can be coupled to adjacent magnets via magnetic attraction, adhesives, welding, bonding, fusion welding, sintering, etc. In some cases, the individual magnets constituting the first magnet 406 and / or the second magnet 408 are not coupled to each other, but are only close to each other in the assembled wristband 108. Examples of multi-pole magnet structures and implementations of wristbands 108 using multi-pole magnet structures are further discussed herein.

[0055] like Figure 5 As shown, the number of first magnets 406 in the first segment 400 can be the same as or different from the number of second magnets 408 in the second segment 402. For example, one or more first magnets 406 in the first segment 400 can be positioned along most of the length of the wristband 108. Figure 5 As shown, one or more first magnets 406 in the first segment 400 may be positioned along approximately half of the length of the wristband 108. One or more second magnets 408 in the second segment 402 may span the remainder of the length of the wristband 108 or be positioned over the remainder of the length of the wristband. Figure 5The number of first magnets 406 and second magnets 408 shown is merely exemplary, and other numbers and distributions are contemplated.

[0056] like Figure 5 As shown, the one or more second magnets 408 in the second segment 402 may include an enlarged second magnet 408A that is positioned directly adjacent to the free end 212 of the wristband 108. The enlarged second magnet 408A may be substantially larger than the remaining second magnets 408 in the second segment 402. In addition, the enlarged second magnet 408A may be substantially larger than the remaining one or more first magnets 406 in the first segment 400. The enlarged second magnet 408A may be larger than the remaining second magnets 408 in the second segment 402 to produce a stronger magnetic field or magnetic flux, and ultimately ensure that the portion of the wristband 108 including the enlarged second magnet 408A is magnetically coupled to a different first magnet 406, as further discussed herein. The enlarged second magnet 408A may also be sized to prevent the strip portion from being removed from the retaining ring 208.

[0057] Reference now Figure 6 , the components of the wristband may include multiple layers supporting multiple magnets. Figure 6 As shown, support structure 412 can be set between opposite pairs of magnets (e.g., magnets 408 and 409). Support structure 412 can join magnets together and keep magnets in a desired arrangement along the length of wristband. For example, support structure 412 can be substantially inextensible along its longitudinal length, thereby providing high tensile strength along the major axis. Support structure 412 can also provide high bending to allow wristband to fold onto itself. Support structure 412 can form a ribbon, which is wide in one dimension transverse to its length and thin in another dimension transverse to its length. Support structure 412 can have a length sufficient to extend between multiple pairs of magnets. Support structure 412 can be formed by multiple woven fibers. For example, support structure 412 can include fabric, polymer, synthetic fiber, polyester, liquid crystal polymer, glass fiber, carbon fiber and / or a combination thereof.

[0058] Additionally or alternatively, the support structure 412 or a portion thereof may be longitudinally extensible to facilitate stretching along the longitudinal length of the wristband and provide greater comfort, safety and retention of the wristband. Utilizing this stretching capability, the wristband can be adapted, for example, by changing its circumference when the user moves, exercises, stretches. Such adjustments can be made without sliding the overlapping portions relative to each other, thereby avoiding adjustments that make the wristband permanently loose or fully unfolded. This stretching may be desired to ensure consistent, strong attachment to the wrist. The stretching capability can be provided by material selection, modified orientation of fibers in the woven material, and / or structural feature structures such as holes, incisions, slots, etc.

[0059] like Figure 6 As shown, the support structure 412 may include one or more holes 416. One or more holes in the holes 416 may provide a position for being engaged by a tool. For example, the holes 416 may be engaged by a tool to keep the support structure 412 in place during assembly. One or more of the holes 416 may provide a passage through the thickness of the support structure (e.g., from the first side and the second side of the support structure 412). For example, the holes 416 may provide a conduit for connecting the internal second magnet 408 to the external second magnet 409. Thus, the internal second magnet 408 and the external second magnet 409 can be joined together through the support structure 412. The support structure 412 may also be provided with a coating to prevent wear and / or facilitate adhesion to other components. The coating may include, for example, polyurethane, silicone, another elastomer and / or a combination thereof.

[0060] like Figure 6 As further shown in FIG. 4 , the inner second magnet 408 and the outer second magnet 409 may be positioned in pairs on opposite sides of the support structure 412. The magnet may be formed, for example, by molding onto the support structure 412. The magnet may be preformed or formed by setting a mixture for the magnet to the support structure 412. The mixture may be molded, cured and / or cross-linked against the support structure 412. The opposite pairs of magnets may also be molded, cured and / or cross-linked with each other through the holes 416 of the support structure 412 and / or outside the width of the support structure 412. Each of the magnets may include at least one flat surface facing both the support structure 412 and the opposite magnet. The opposite magnets may be positioned so that the support structure 412 extends along the center line or plane of the wristband. For example, the opposite pairs of magnets may be symmetrical relative to each other across the support structure 412.

[0061] like Figure 6As further shown in , the support structure 412, the internal second magnet 408 and the external second magnet 409 may be surrounded by a cover 414. The cover 414 may be formed by overmolding relative to the components therein. The cover 414 may define both the engagement surface 200 and the contact surface 202 of the wristband. The independent sides of the cover 414 may be formed in one step or in independent steps. For example, the first side of the side may be formed to ensure alignment with the mold. Subsequently, the remaining sides may be formed in independent molding steps. The cover 414 may be directly bonded to at least a portion of the support structure 412 and the magnet. The cover 414 may include a flexible material such as an elastomer, rubber, silicone, fluoroelastomer and / or a combination thereof. The cover 414 may include the same polymer present in the magnets 408 and 409, optionally in the absence of magnetic material (e.g., particles or powder) present in the magnets 408 and 409. Therefore, the cover 414 may be formed onto the magnets 408 and 409 with strong bonding (eg, cross-linking) based on the use of the same polymer.

[0062] The cover 414 can be designed and / or selected to control the flexibility and bendability of the wristband. Flexibility can have a significant impact on the safety and / or retention of the magnetic coupling. By controlling the cover 414, in particular for stiffness, the wristband can be designed to have a specific flexibility to maximize retention, comfort, and ease of use. For example, if the cover 414 is too hard, the wristband may not be properly conformed to the user's wrist and will be more easily popped open, resulting in poor retention and safety. For another example, a high degree of flexibility allows the wristband to absorb impact and bend outward when it is hooked without causing the wristband to become loose or fully unfolded. Such feature structures can be provided by material selection, stacking different materials together, local changes in thickness (so that the key hinge area is thinner or thicker), local changes in material stacking structures (i.e., adhesives, magnets, etc.) (so that the key hinge area is thinner or thicker) and / or structural feature structures (such as holes, cuts, slots, etc.).

[0063] Layer 414 may be designed and / or selected to modify friction between decorative surfaces, e.g., to improve retention and / or security of the wristband. Surface friction may be selected to ensure that band attachment is secure. Such features may be provided by material selection, various geometries to target interlocking friction, including textured surfaces (e.g., roughening the contacting surfaces), adhering small protrusions to decorative surfaces to control (e.g., increase) surface roughness and friction, post-treatment with conditioners and / or oils, laminating different materials together, and / or structural features such as holes, cutouts, slots, etc.

[0064] Layers 414 may be designed and / or selected to have different surface features on the sides facing each other (e.g., meeting at the overlap area) than on the sides facing away from each other (e.g., the inwardly facing surface that contacts the user and / or the outwardly facing decorative surface). The inner and outer layers may be modified individually, such as at specific locations along the length, as described herein. The interior surface between the straps at the overlap area may have features that facilitate retention and / or security of the straps. However, the interior surface may optionally omit the features described herein for skin contact and / or external exposure.

[0065] As another example, the cover 414 may include a material different from at least one component of the magnet. The cover 414 may be selected to form the desired exterior of the wristband. For example, the cover 414 may be selected to provide desired durability, comfort and / or aesthetic appearance. The cover 414 may include natural materials and / or synthetic materials. The cover 414 may include, for example, leather, woven materials, nonwoven materials, felt, metal, mesh, connectors, etc. In the case of using multiple materials, each material may have different structural properties, touch and / or appearance. In some cases, the material is selected to provide a band with composite properties: a first set of properties (associated with the first material) of the inner layer in contact with the user's skin, and a second set of properties (associated with the second material) of the outer layer that is visible and exposed to various environmental elements.

[0066] Cover 414 can be bonded to other structures by adhesive layer 418. Adhesive 418 can be selected to provide effective bonding between portions of cover 414 and other components (such as magnets 408 and 409). For example, adhesive 418 can be an adhesive that effectively bonds to the material of each component. As another example, adhesive 418 can be a combination of different adhesives that are each bonded to a corresponding structure and bonded to each other. Adhesive 418 may include a heat-activated adhesive such as a heat-activated film or a heat-bonding film. A film of such adhesive 418 can be applied to the surface of cover 414 and / or between cover 414 and other components, followed by a heating process that activates adhesive 418.

[0067] Adhesive 418 can provide adhesion and prevent chemical exposure to the magnetic interior. If not protected, the magnetic interior structure may have the risk of chemical exposure and degradation, especially in the form of rust. Robust chemical protection will make the life cycle of the belt more ideal and longer, and prevent the safety or retention from decreasing over time. This can be optionally achieved via multiple layers of various adhesives combined together to achieve both adhesion and protection. Adhesive 418 can be optionally a pressure sensitive adhesive (PSA), a heat activated adhesive, or a combination thereof. Some decorative materials (e.g., the decorative materials of cover 414) such as leather can be damaged by heat, and a pressure sensitive adhesive can enable the use of a desired decorative material that is sensitive to heat.

[0068] See now Figure 7 and Figure 8 , showing a side cross-sectional view of different parts of a wristband. Specifically, Figure 7 Shown along Figure 5 7-7 of the second segment 402, and showing the inner second magnet 408 and the outer second magnet 409. In addition, Figure 8 Shown along Figure 5 8, and illustrates an inner first magnet 406 and an outer first magnet 407. It should be understood that similarly named components or similarly numbered components may function in a substantially similar manner, may include similar materials, and / or may include similar interactions with other components. For clarity, redundant descriptions of these components have been omitted.

[0069] like Figure 7 and Figure 8 As shown, at least some of the magnets may form a shunt. For example, the external first magnet 407 and the external second magnet 409 may each include a soft magnetic material and be positioned opposite to a permanent magnet, such as one of the internal first magnet 406 and the internal second magnet 408. The magnets forming the shunt may be positioned so that when the wristband is folded onto itself or when the parts are otherwise overlapped with each other, the shunt faces outward and the permanent magnets face each other for magnetic coupling. The shunt may substantially block, redirect or minimize the magnetic flux in the area covered by the shunt. It should be understood that the external first magnet 407 and the external second magnet 409 may also be permanent magnets, for example, whose magnetic field orientation is the same as or parallel to the magnetic field orientation of the relative magnet.

[0070] The external first magnet 407 and / or the external second magnet 409 may include a soft magnetic material different from the permanent magnetic material of the internal first magnet 406 and / or the internal second magnet 408. For example, the external first magnet 407 and / or the external second magnet 409 may include a first magnetic material (e.g., neodymium), and the internal first magnet 406 and / or the internal second magnet 408 may include a second magnetic material (e.g., iron cobalt). Additionally or alternatively, the external first magnet 407, the external second magnet 409, the internal first magnet 406, and / or the internal second magnet 408 may include the same magnetic material and / or the same polymer.

[0071] The magnetic material may include components that differ from each other to facilitate the function of the permanent magnet and / or the shunt. For example, isotropic and / or anisotropic particles may be used to facilitate the function of the magnet and / or the shunt. The characteristic "anisotropic" or "isotropic" indicates whether the magnet or magnetic particle has a preferred magnetization direction. Isotropic particles do not have a preferred magnetization direction and can therefore be magnetized in any direction. Anisotropic particles have a preferred magnetization direction and can therefore only be magnetized in a specified direction.

[0072] The first internal magnet 406 and / or the second internal magnet 408 may include anisotropic particles of hard magnetic material to facilitate orientation of particles within the polymer during the formation stage. The anisotropic particles may retain their magnetic force based on their orientation and the applied magnetic field even after the applied magnetic field is removed. For another example, the first external magnet 407 and / or the second external magnet 409 may include isotropic particles of soft magnetic material to facilitate the temporary magnetic response of the soft magnetic material to a variety of applied magnetic fields.

[0073] See now Figures 9 to 11 , the magnets can have the same magnetic field orientation at different segments of the wristband. Fig. 9 As shown, a first magnet 406 along a first segment 400 of the wristband 108 may have a magnetic field orientation that is the same as or parallel to a magnetic field orientation of a second magnet 408 along a second segment 402 of the wristband 108 .

[0074] like Fig.10 As shown, when the wristband is folded onto itself or when the portions are otherwise overlapped with each other, some of the first magnet 406 and the second magnet 408 may be nested within each other with the contact surface 202 facing itself. In this arrangement, the first magnet 406 and the second magnet 408 may be magnetically coupled to each other. In the case where the wristband 108 is bent while being folded onto itself, a different magnetic alignment may be provided. For example, other areas of the same wristband 108 may be as shown. Fig.11 Arrangement shown. Although the magnetic coupling may be weak in these areas, magnets arranged in various ways provide sufficient magnetic coupling.

[0075] See now Figure 12 to Figure 14 , the magnet may have different magnetic field orientations at different segments of the wristband. Fig.12 As shown, the magnetic field orientation of the first magnet 406 along the first segment 400 of the wristband 108 may be different (eg, opposite) relative to the magnetic field orientation of the second magnet 408 along the second segment 402 of the wristband 108 .

[0076] like Fig.13As shown, when the wristband is folded onto itself or when the portions are otherwise overlapped with each other, some of the first magnet 406 and the second magnet 408 may be nested within each other with the contact surface 202 facing itself. In this arrangement, the first magnet 406 and the second magnet 408 may be magnetically coupled to each other. Other areas of the same wristband 108 may be as shown. Fig.14 Arrangement shown. In this region, the first magnet 406 and the second magnet 408 may also be magnetically coupled to each other.

[0077] Although some of the magnetic fields shown herein are shown as being parallel to each other and / or orthogonal to the longitudinal axis of wristband 108, one, some, or all of the magnetic fields may be oriented in other directions. When the magnets are arranged in certain interlocking orientations, such angled magnetic field orientations may maximize the magnetic attraction. Other variations may maximize the magnetic attraction, such as the multi-pole magnet structure further described herein. One or more of such feature structures may vary along the length of the band to maximize or minimize the magnetic attraction in a selected area.

[0078] refer to Fig.15 , the magnet may include a multi-pole magnet structure, which includes two or more individual magnets. For example, Fig.15 As shown, the first magnet 406 and / or the second magnet 408 can be arranged to change the polarity pattern of each magnetic component 410 and 411. Fig.15 As shown, the polarity pattern can be an alternating polarity pattern in which the north pole N (positive pole) and the south pole S (negative pole) alternate across each multi-pole magnet structure. The magnetic field generated by the multi-pole magnet structure can attract objects. For example, the magnetic attraction force can ensure that each magnetic component 410 of the first magnet 406 is magnetically coupled to a different magnetic component 411 of the second magnet 408. Each multi-pole magnet may include, for example, 2, 3, 4, 5, 6, 7, 8, 9 or more than 9 magnetic components with different (e.g., alternating) polarity patterns. One or more continuous, non-adjacent or discrete shunts may be positioned opposite to one or more of the multi-pole magnet structures in the multi-pole magnet structure to redirect the magnetic field of the multi-pole magnet structure.

[0079] See also Fig.16 and Fig.17 As shown, the connector of the wristband can be fixed to the support structure. Fig.16 As shown, the separate component 216 of the first connector 204 can be joined with the portion of the support structure 412 extending therebetween. Fig.17 As shown, the components 216 can be secured together such that the support structure 412 is sandwiched and secured relative to the first connector 204. Additionally or alternatively, a portion of the first connector 204 can be molded over the support structure 412.

[0080] refer to Fig.18 , the support structure can be coupled to the connector and surrounded by a cover. Fig.18 As shown, at least a portion (e.g., an end portion) of support structure 412 may be wrapped around locking element 206. Optionally, support structure 412 may be bonded to locking element 206. Locking element 206 may be coupled to connector 204 in a manner that secures support structure 412. Thus, forces applied to support structure 412 may be resisted so that support structure 412 does not slide out of the area of ​​locking element 206. Cover 414 may extend to cover locking element 206, connector 204, and at least a portion of support structure 412. In some examples, cover 414 may extend around the terminal end of connector 204. Additionally or alternatively, a portion of connector 204 may remain exposed to provide engagement with a case of a watch.

[0081] refer to Fig.19 The support structure may be provided with anchoring elements that resist movement away from the connector. Fig.19 As shown, at least a portion (e.g., an end portion) of the support structure 412 may be coupled to an anchoring element 420 having an enlarged size relative to the support structure 412. For example, the anchoring element 420 may include a polymer molded onto the support structure 412. The locking element 206 may be coupled to the connector 204 to form a groove in which the anchoring element 420 is received. The force applied to the support structure 412 may be resisted so that the anchoring element 420 does not slide out of the groove defined by the locking element 206 and / or the connector 204. The cover 414 may extend to cover at least a portion of the locking element 206, the connector 204, and the support structure 412. In some examples, the cover 414 may extend around the terminal end of the connector 204. Additionally or alternatively, a portion of the connector 204 may remain exposed to provide engagement with the case of the watch.

[0082] See also Fig. 20 , a polarity pattern of individual magnetic components can be established by applying a magnetic field. The magnetizing system 500 can be used to apply a magnetic field across different portions of the wristband 108. For example, one or more first magnetized components 510 can be placed on a first side of the magnet 406, and one or more second magnetized components 512 can be placed on a second side of the magnet 406. Each first magnetized component 510 can be placed opposite a second magnetized component 512 having an opposite magnetic polarity to form a magnetic field oriented through the magnet 406. Different pairs of first magnetized components 510 and second magnetized components 512 can have different magnetic polarity arrangements, so that the individual magnetic components 410 of the magnet 406 have different magnetic polarity alignments. For example, as Fig. 20As shown, the magnetic polarity alternates for adjacent pairs of first and second magnetized components 510, 512 and for adjacent pairs of individual magnetic components 410 of magnet 406. Thus, the magnetic field orientation of each individual magnetic component 410 is substantially uniform within magnet 406. Different magnetic components 410 may have parallel (including in opposite directions) magnetic field orientations.

[0083] like Fig.21 As shown, magnet 406 can be part of wristband 108 configured to have an overlapping portion. At the engagement surface 200 of the overlapping portion, the internal first magnet 406 and the internal second magnet 408 can face each other for magnetic coupling. The magnetic fields of magnetic components 410 and magnetic components 411 can be arranged so that the internal first magnet 406 and the internal second magnet 408 are magnetically attracted to each other. At the contact surface 202 of the overlapping portion, the external first magnet 407 and the external second magnet 409 can act as a shunt, so that when the wristband is folded onto itself or when the parts are otherwise overlapped with each other, the shunt is outward and the internal first magnet 406 and the internal second magnet 408 face each other for magnetic coupling. The shunt can substantially block, redirect or minimize the magnetic flux in the area covered by the shunt. This reduces the magnetic flux outside the wristband 108. Optionally, a support structure 412 can be provided between the opposing pairs of magnets.

[0084] refer to Fig. 22 , the polarity pattern of each magnetic component can be established by applying a magnetic field from a single side of the wristband. The magnetizing system 600 can be used to apply a magnetic field across different portions of the wristband 108. For example, one or more magnetizing components 610 can be placed on a first side of the magnet 406. Fig. 22 As shown, the magnetic polarity alternates for adjacent pairs of magnetized components 610. In the absence of additional magnetized components opposite to the magnetized components 610, the magnetic field extends between adjacent pairs of magnetized components 610 with opposite magnetic polarity. Therefore, the resulting magnetic field extends through the magnet 406 along an arc or curved path. For example, the orientation is different across different parts of each magnetic component 410 within the magnet 406. The magnetic field orientation is maintained in the magnet 406 by the contribution of individual particles of magnetic material (e.g., powder). Each particle is oriented in the polymer according to the applied magnetic field from the system 600. In the case of anisotropic particles (i.e., having a preferred magnetization direction), such particles themselves physically align with the applied magnetic field according to the preferred magnetization direction of the particles (e.g., by physically rotating). In the case of isotropic particles (i.e., not having a preferred magnetization direction), such particles can magnetically align themselves with the applied magnetic field (e.g., by adjusting the magnetic domain). After alignment, the particles maintain a permanent magnetic field.

[0085] refer to Fig.23The arc or curved magnetic field in the magnet can provide a high magnetic flux on the engagement surface of the wristband and a low magnetic flux on the contact surface of the wristband. Fig.23 As shown, magnet 406 can be part of wristband 108 configured to have overlapping portions. At the joint surface 200 of the overlapping portion, the first magnet 406 and the second magnet 408 can face each other for magnetic coupling. The magnetic flux through the joint surface 200 can be high, with different polarities at different portions of the joint surface 200 (e.g., at different areas where magnetic component 410 and magnetic component 411 are formed). The magnetic field orientation is arranged so that the first magnet 406 and the internal second magnet 408 are magnetically attracted to each other. The magnetic flux through the contact surface 202 is low, so that when the wristband is folded onto itself or when the portions are otherwise overlapped with each other, even without a separate magnetic shunt, the contact surface 202 is outward and the residual magnetic flux is reduced. Optionally, a support structure 412 can be provided within the magnet.

[0086] See also Figure 24 to Figure 26 , the polarity patterns of the various magnetic components can be established by applying different magnetic fields at different times. The magnetizing system 500 can be used to apply magnetic fields across different portions of the wristband 108. For example, one or more first magnetized components 510 can be placed on a first side of the magnet 406, and one or more second magnetized components 512 can be placed on a second side of the magnet 406.

[0087] like Fig.24 As shown, the initial polarity pattern of each magnetic component can be established by applying a magnetic field from opposite sides of the wristband. For example, each first magnetized component 510 can be placed opposite to a second magnetized component 512 that can have an opposite magnetic polarity to form a magnetic field oriented by the magnet 406. Different pairs of first magnetized components 510 and second magnetized components 512 can have different magnetic polarity arrangements, so that each magnetic component 410 of the magnet 406 has a different magnetic polarity alignment. For example, as Fig.24 As shown, the magnetic polarity alternates for adjacent pairs of first and second magnetized components 510, 512 and for adjacent pairs of individual magnetic components 410 of magnet 406. Thus, the magnetic field orientation of each individual magnetic component 410 is substantially uniform within magnet 406. Different magnetic components 410 may have parallel (including in opposite directions) magnetic field orientations.

[0088] refer to Fig.25 , another polarity pattern of the individual magnetic components can be established by applying another magnetic field from one side of the wristband. Fig.25 As shown, the second magnetized components 512 on the second side of the wristband 108 may have the same magnetization properties as those in the previous stage ( Fig.24) in the second stage. For example, in the second stage, the second magnetized component 512 may have an alternating polarity pattern that is opposite to the alternating polarity pattern applied to the first magnetized component 510 in the initial stage. In the absence of a magnetic field from the first magnetized component on the first side of the wristband 108, the magnetic field extends between adjacent pairs of second magnetized components 512 having opposite magnetic polarities. Thus, the resulting magnetic field extends through the second side of the magnet 406 along an arc or curved path. As will be demonstrated, the magnetic field applied by the second magnetized component 512 on the second side of the wristband 108 may align particles within each magnetic component 410 so that the magnetic flux passing through the second side of the wristband 108 is reduced to less than the magnetic flux passing through the first side of the wristband 108. Because the second magnetized component 512 is closer to the second side than the first magnetized component 510, the magnetic field applied by the second magnetized component 512 may have a greater influence than the magnetic field applied by the first magnetized component 510, so that the particles near the second side are aligned in a specific orientation. It should be understood that the spatial orientation angle of the magnetic field applied in the second stage may be smaller than the magnetic field applied in other stages so that the area away from the second magnetized component 512 is not changed undesirably.

[0089] refer to Fig.26 , another polarity pattern of the individual magnetic components can be established by applying another magnetic field from one side of the wristband. Fig.26 As shown, the first magnetized component 510 on the first side of the wristband 108 may have the same Fig.24 ) is applied to the first magnetized components 510. In the absence of a magnetic field from a second magnetized component on the second side of the wristband 108, the magnetic field extends between adjacent pairs of first magnetized components 510 of opposite magnetic polarity. Thus, the resulting magnetic field extends through the magnet 406 along an arcuate or curved path.

[0090] The resulting orientation is different across different portions of each magnetic component 410 within the magnet 406. The magnetic field orientation is maintained in the magnet 406 by the contribution of individual particles of magnetic material (e.g., powder). Each particle is oriented within the polymer according to the applied magnetic field from the system 600. In the case of particles that are anisotropic (i.e., have a preferred magnetization direction), such particles physically align themselves with the applied magnetic field (e.g., by physically rotating) according to the preferred magnetization direction of the particles. In the case of particles that are isotropic (i.e., do not have a preferred magnetization direction), such particles can magnetically align themselves with the applied magnetic field (e.g., by adjusting the magnetic domains). After alignment, the particles maintain a permanent magnetic field.

[0091] The arc or curved magnetic field within the magnet 406 can provide a high magnetic flux on a first side of the wristband 108 (e.g., providing an engagement surface) and a low magnetic flux on a second side of the wristband 108 (e.g., providing a contact surface). This path can be considered to be a direct response to the magnetic field generated by the previous stage ( Fig.24 and Fig.25 ) The magnitude of the magnetic field applied in the final stage therefore does not need to be as strong as the magnitude of the magnetic field that would have achieved the same alignment in the absence of the previous stages.

[0092] Reference now Fig. 27 , the wristband may include independent band portions to facilitate adjustment using magnetic coupling. By selecting the degree of overlap between the first band portion 710 and the second band portion 750, the wristband 700 is adjustable to fit securely and comfortably on the wrist. For example, the diameter of the wristband 700 is adjustable to fit securely and comfortably on the wrist. Each of the first band portion 710 and the second band portion 750 is removably attached to a portion (e.g., channel 106) of the housing 102 of the electronic device 100 using the first connector 704 or the second connector 705, respectively. Therefore, the wristband 700 can be removed from the electronic device 100, thereby allowing the user to switch the wristband as needed or desired.

[0093] The contact surface 714 of the first band portion 710 can be positioned as an outwardly facing surface. The engagement surface 712 of the first band portion 710 can be positioned as an inwardly facing surface to engage the second band portion 750 when the band portions overlap. The engagement surface 752 of the second band portion 750 can be positioned as an outwardly facing surface to engage the first band portion 710 when the band portions overlap. Magnets are disposed near at least the engagement surface 712 and the engagement surface 752 to magnetically couple the first band portion 710 to the second band portion 750, as further described herein. The contact surface 754 of the second band portion 750 can be positioned as an inwardly facing surface to contact the user's wrist.

[0094] Although Fig. 27 The wristband 700 extends from the opposite side of the housing 102 of the electronic device 100, rather than Figure 3 Although the wristband 700 extends from one side and overlaps itself as in the wristband 108 of FIG. 1 , it should be understood that various features of the wristband 700 can be similar to the wristband 108, as described herein. In particular, the overlapping portion of the first band portion 710 and the second band portion 750 can be similar to the overlapping portion of the wristband 108 in one or more aspects. Thus, the first band portion 710 and the second band portion 750 of the wristband 700 can be similar to the overlapping portion of the wristband 108, as described herein. Fig.10 , Fig.11 , Fig.13 , Fig.14 , Fig.21 and Fig.23 It should be understood that the first band portion 710 of the wristband 700 may include magnets similar to the inner first magnet 406 and / or the outer first magnet 407, and the second band portion 750 of the wristband 700 may include magnets similar to the inner second magnet 408 and / or the outer second magnet 409. Therefore, the features described herein in relation to the overlapping portions of the wristband 108 should be understood to be optionally applicable to the first band portion 710 and the second band portion 750 of the wristband 700.

[0095] Additionally or alternatively, the wristband may include features that facilitate coupling and securing of separate band portions extending from opposite sides of the watch case. For example, the first band portion 710 and the second band portion 750 of the wristband 700 may have a geometry that facilitates coupling and provides comfort to the user. Fig.28 As shown, each of first strap portion 710 and second strap portion 750 may have complementary shapes that allow one strap portion to at least partially nest within the other strap portion.

[0096] The first band portion 710 may include a concave engagement surface 712 and / or a convex contact surface 714. The second band portion 750 may include a convex engagement surface 752 and / or a concave contact surface 754. Engagement surfaces 712 and 752 may provide a wide engagement area during magnetic coupling. Concave contact surface 754 may easily conform to the user's wrist, and convex contact surface 714 may provide a smooth outward side of wristband 700.

[0097] like Fig.28 As shown, the first magnet 706 of the first band portion 710 and the second magnet 708 of the second band portion 750 may have a magnetic polarity arrangement that facilitates magnetic coupling. For example, the first magnet 706 may include a separate magnetic component 709 with a different magnetic alignment to couple to the separate magnetic component 711 of the second magnet 708. Fig.28 As shown, the magnetic field orientation can be bent within magnets 706 and 708. Additionally or alternatively, the magnetic field orientation can be similar to the magnetic field orientation described herein with respect to wristband 108.

[0098] See now Fig.29, the magnets of a given band portion may have magnetic components, each having a magnetic field orientation that is consistent along the longitudinal length of the given band portion. For example, the individual magnetic components 709 of the magnet 708 may extend along at least a portion of the longitudinal length of the first band portion 710. Along this length, each individual magnetic component 709 may maintain the same magnetic polarity. Because neither the first band portion 710 nor the second band portion 750 need to fold over on itself to secure the watch to the user, the magnets in each band portion do not need to alternate or change polarity along its length. By providing consistent polarity along the length of each band portion, the first band portion 710 and the second band portion 750 can be magnetically coupled to each other at any of a variety of degrees of overlap. Thus, small adjustments are possible to allow the user to finely adjust the tightness of the wristband 700. In contrast, the folding wristband 108 described above may have an alternating or otherwise different polarity pattern along its length to allow overlapping portions to magnetically attract each other, rather than repel each other. As Fig.29 As shown, the magnetic polarity across the magnetic member 709 can alternate along the width of the ribbon portion 710. The alternating polarity along the width allows the ribbon portions to be magnetically coupled when their widths are aligned so that the edges of the two ribbon portions are aligned (e.g., Fig.28 ).

[0099] See now Fig.30 , the magnets of a given belt portion may have magnetic components with alternating polarity along the longitudinal length of the given belt portion. As shown, the magnetic polarity of the cross-magnetic components 709 and the cross-magnets 706 may alternate along the length and / or width of the belt portion 710. The alternating polarity along the length allows the belt portions to be magnetically coupled at discrete locations rather than continuously magnetically coupled along different degrees of overlap.

[0100] Reference now Fig.31 , the wristband may include portions having soft magnetic material to manage magnetic flux outside the wristband. When the first band portion 710 overlaps with the second band portion 750, at least one of the first magnets 706 overlaps with at least one of the second magnets 708. As discussed herein, the amount of overlap can be adjusted to change the tightness of the wristband 700 on the user's wrist. Therefore, the amount of overlap can be different for different users and at different times. Therefore, the non-overlapping portions can be exposed to varying degrees and emit magnetic flux outside the wristband. This may have an adverse effect on magnetically sensitive items near the wristband. Because hard magnetic materials emit residual magnetic flux, it may be beneficial to reduce the amount of hard magnetic material in the non-overlapping or non-overlapping portions.

[0101] like Fig.31As shown, the first band portion 710 may include a first soft magnetic portion 740 between the first magnet 706 and the first connector 704. The second band portion 750 may include a second soft magnetic portion 780 between the second magnet 708 and the second connector 705. When the first soft magnetic portion 740 overlaps with the second magnet 708, they may be magnetically coupled to each other. Similarly, when the second soft magnetic portion 780 overlaps with the first magnet 706, they may be magnetically coupled to each other. However, when the first soft magnetic portion 740 and / or the second soft magnetic portion 780 do not overlap (e.g., exposed), they do not emit residual magnetic flux because they contain soft magnetic materials that do not generate their own magnetic field. Therefore, the first soft magnetic portion 740 and the second soft magnetic portion 780 reduce the residual magnetic flux outside the wristband while being conducive to magnetic coupling.

[0102] The first soft magnetic portion 740 and / or the second soft magnetic portion 780 may include a flexible material, such as an elastomer, rubber, silicone, fluoroelastomer, and / or a combination thereof. In the absence of magnetic material (e.g., particles or powder) present in the magnet, the first soft magnetic portion 740 and / or the second soft magnetic portion 780 may include the same polymer present in the magnet. Therefore, the first soft magnetic portion 740 and / or the second soft magnetic portion 780 may be formed onto the first magnet 706 and / or the second magnet 708 using strong bonding (e.g., cross-linking) based on the use of the same polymer.

[0103] like Fig.31 As further shown in the figure, the first band portion 710 may include a first non-magnetic portion 760 between the first magnet 706 and the first connector 704 and / or between the first soft magnetic portion 740 and the first connector 704. The second band portion 750 may include a second non-magnetic portion 770 between the second magnet 708 and the second connector 705 and / or between the second soft magnetic portion 780 and the second connector 705. The first non-magnetic portion 760 and / or the second non-magnetic portion 770 may omit any magnetic material (e.g., particles, powder). Therefore, the first non-magnetic portion 760 and / or the second non-magnetic portion 770 do not emit magnetic flux or generate a magnetic field. Therefore, the first non-magnetic portion 760 and the second non-magnetic portion 770 reduce the magnetic flux outside the wristband in the vicinity of the housing 102.

[0104] The first non-magnetic portion 760 and / or the second non-magnetic portion 770 may include a flexible material, such as an elastomer, rubber, silicone, fluoroelastomer, and / or a combination thereof. In the absence of magnetic material (e.g., particles or powder) present in the magnet, the first non-magnetic portion 760 and / or the second non-magnetic portion 770 may include the same polymer present in the magnet. Therefore, the first non-magnetic portion 760 and / or the second non-magnetic portion 770 may be formed to the first soft magnetic portion 740, the first magnet 706, the second soft magnetic portion 780, and / or the second magnet 708 based on the use of the same polymer with strong bonding (e.g., cross-linking).

[0105] Each of the first non-magnetic portion 760, the second non-magnetic portion 770, the first soft magnetic portion 740, the first magnet 706, the second soft magnetic portion 780, and / or the second magnet 708 may include one or more segments that provide different maximum cross-sectional dimensions and are separated from each other by gaps and / or minimum cross-sectional dimensions. The segments within any one region and / or across multiple regions may be the same or similar. The spacing and / or distribution of such segments may be uniform and / or varied. Examples of such segments are described in Figure 5 , Figures 6 to 15 and Fig.30 As shown in FIG. 1 . It should be understood that such segments may provide a non-uniform outer dimension to the resulting wristband. Such segments may be provided in areas having permanent magnetic material, soft magnetic material, and / or no magnetic material. Thus, despite providing different portions having different magnetic properties, the shape, size, and / or appearance of the wristband may be consistent.

[0106] The properties and / or amount of the magnetic material may vary gradually along the length of the wristband. For example, at least along the length of the wristband, the magnetic material may be provided in a manner that produces a gradually stronger magnetic field in one direction along the length and a weaker magnetic field in another direction along the length. For example, the density, size, concentration, aspect ratio, shape, or other properties of the magnetic material may vary along the length of the wristband. At a position closer to the shell, the properties may provide a weaker magnetic field, and at a position farther from the shell, the properties may provide a stronger magnetic field. Such differences may be provided along a continuous structure or across discrete segments (e.g., magnets). For example, each magnet in a series of magnets may have different magnetic properties, so that the magnetic field of the magnet varies along the length of its arrangement assembly. As another example, the magnetic material may be provided within a continuous structure so that the magnetic properties vary along the length of the continuous structure.

[0107] Therefore, embodiments of the present disclosure provide a magnetic attachment mechanism to provide a secure attachment to the user and also provide enhanced comfort. Magnetic coupling can be achieved using flexible magnets that are more comfortable than rigid magnets while still providing a secure attachment to the user and ease of adjustment. Embodiments of the present disclosure provide the convenience of user adjustment as well as a secure attachment to avoid accidental release under external forces.

[0108] For convenience, various examples of various aspects of the present disclosure are described as clauses below. These examples are provided by way of example and do not limit the subject technology.

[0109] Item A: A wristband for securing a watch to a user, the wristband comprising: flexible magnets, wherein each of the flexible magnets comprises a mixture of a polymer and a ferromagnetic material; an outer cover, the outer cover surrounding each of the flexible magnets; and an adhesive layer, the adhesive layer bonding the flexible magnets to the outer cover.

[0110] Item B: A wristband comprising: a connector configured to connect to a watch case; a plurality of first segments formed from a mixture of a polymer and magnetic particles; and a plurality of second segments formed from the polymer without magnetic particles, the plurality of second segments being located between the first segments and the connector.

[0111] Item C: A method for magnetizing a wristband, the method comprising: applying a first magnetic field between: a first magnetized component, the first magnetized component having a first alternating polarity pattern on a first side of the wristband; and a second magnetized component, the second magnetized component having a second alternating polarity pattern on a second side of the wristband, the second alternating polarity pattern being opposite to the first alternating polarity pattern; applying a second magnetic field on the second side of the wristband using the second magnetized component having the first alternating polarity pattern; and applying a third magnetic field on the first side of the wristband using the first magnetized component having the first alternating polarity pattern.

[0112] One or more of the above clauses may include one or more of the following features. It should be noted that any of the following clauses may be combined with each other in any combination and placed in a corresponding independent clause, for example, clause A, B or C.

[0113] Item 1: The flexible magnet includes a first permanent magnet and a second permanent magnet, and the wristband also includes: a first band portion, the first band portion is configured to be attached to a first side of a watch case, the first band portion contains the first permanent magnet; and a second band portion, the second band portion is configured to be attached to a second side of the watch case, the second band portion contains the second permanent magnet.

[0114] Item 2: The first band portion includes: a first connector, which is used to attach to the first side of the watch case; and a first soft magnetic portion, which is located between the first permanent magnet and the first connector; and the second band portion includes: a second connector, which is used to attach to the second side of the watch case; and a second soft magnetic portion, which is located between the second permanent magnet and the second connector.

[0115] Clause 3: The outer cover comprises leather.

[0116] Item 4: A support structure extending between pairs of said flexible magnets.

[0117] Clause 5: The support structure comprises holes, wherein each of the holes is positioned between a corresponding pair of the flexible magnets.

[0118] Item 6: The width of the flexible magnets is greater than the width of the support structure, so that opposing pairs of the flexible magnets are connected to each other outside the width of the support structure.

[0119] Clause 7: A connector configured to connect to a watch case, the connector being attached to the support structure.

[0120] Clause 8: A connector configured to be connected to a watch case; and a free end opposite the connector, wherein the support structure extends continuously from the connector to the free end.

[0121] Item 9: A first connector, the first connector being configured to be connected to a watch case; a free end, the free end being opposite to the first connector; and a retaining ring, the retaining ring being slidably disposed between the first connector and the free end, the retaining ring comprising: a second connector, the second connector being configured to be connected to the watch case; and an opening, wherein a strip portion of the wristband extends through the opening and is configured to be folded onto itself; wherein the flexible magnet comprises: a first permanent magnet along a first segment of the wristband; and a second permanent magnet along a second segment of the wristband, the second permanent magnet having a magnetic orientation different from the magnetic orientation of the first permanent magnet, wherein the first permanent magnet is configured to magnetically couple to the second permanent magnet when the strip portion is folded onto itself.

[0122] Item 10: The magnetic particles of the first section include permanent magnetic particles.

[0123] Item 11: A plurality of third segments, the plurality of third segments being located between the first segment and the second segment, the plurality of third segments being formed from a mixture of the polymer and soft magnetic particles.

[0124] Item 12: The wristband includes: a first band portion, the first band portion is configured to be attached to a first side of the watch case, the first band portion includes: the connector; the plurality of first segments; the plurality of second segments; and a second band portion, the second band portion is configured to be attached to a second side of the watch case, the second band portion is configured to be magnetically coupled to the first band portion.

[0125] Item 13: The connector is a first connector, and the wristband further includes: a free end, which is opposite to the first connector; and a retaining ring, which is slidably disposed between the first connector and the free end, and the retaining ring includes: a second connector, which is configured to be connected to the watch case; and an opening, wherein a strip portion of the wristband extends through the opening and is configured to be folded onto itself; wherein the plurality of first sections include: a first permanent magnet along a first segment of the wristband; and a second permanent magnet along a second segment of the wristband, the second permanent magnet having a magnetic orientation different from the magnetic orientation of the first permanent magnet, wherein the first permanent magnet is configured to magnetically couple to the second permanent magnet when the strip portion is folded onto itself.

[0126] Item 14: A sintered permanent magnet at a free end of the wristband opposite the connector.

[0127] Item 15: The wristband includes a flexible magnet located between the first side and the second side, wherein the flexible magnet includes a mixture of polymer and hard magnetic material particles, wherein the particles are magnetically aligned by the first magnetized component and the second magnetized component to generate more magnetic flux through the first side than through the second side.

[0128] Clause 16: The second magnetic field has a magnitude less than a magnitude of the first magnetic field.

[0129] Clause 17: The number of the first magnetized components is equal to the number of the second magnetized components, and each of the first magnetized components is opposite to a corresponding one of the second magnetized components.

[0130] Unless otherwise specified, an element mentioned in the singular does not mean unique, but refers to one or more. For example, "a" module may refer to one or more modules. An element prefixed with "a", "an", "the" or "said" does not exclude the existence of additional identical elements without further limitations.

[0131] Headings and subheadings, if any, are used for convenience only and do not limit the invention. The word "exemplary" is used to mean used as an example or illustration. To the extent that the terms "including," "having," and the like are used, such terms are intended to be inclusive in a manner similar to the term "comprising" as being interpreted to include when used as transition words in the claims. Relational terms such as "first" and "second," and the like may be used to distinguish one entity or action from another without necessarily requiring or implying any actual such relationship or order between such entities or actions.

[0132] Phrases such as aspect, this aspect, another aspect, some aspects, one or more aspects, a specific implementation, this specific implementation, another specific implementation, some specific implementations, one or more specific implementations, an embodiment, this embodiment, another embodiment, some embodiments, one or more embodiments, configuration, this configuration, another configuration, some configurations, one or more configurations, subject technology, disclosure, the present disclosure, other variations, etc. are for convenience and do not mean that the disclosure involving such one or more phrases is essential to the subject technology, or that such disclosure applies to all configurations of the subject technology. Disclosures involving such one or more phrases may apply to all configurations or one or more configurations. Disclosures involving such one or more phrases may provide one or more examples. Phrases such as aspect or some aspects may refer to one or more aspects, and vice versa, and this applies similarly to the other aforementioned phrases.

[0133] The phrase "at least one" preceding a list of items, with any of the items separated by the terms "and" or "or," modifies the list as a whole rather than each member of the list. The phrase "at least one" does not require selection of at least one item; rather, the phrase allows for a meaning that includes at least one of any one item and / or at least one of any combination of items and / or at least one of each item. For example, each of the phrases "at least one of A, B, and C" or "at least one of A, B, or C" refers to A only, B only, or C only; any combination of A, B, and C; and / or at least one of each of A, B, and C.

[0134] It should be understood that the specific order or level of the disclosed steps, operations or processes is an illustration of an exemplary method. Unless otherwise clearly stated, it is understandable that the specific order or level of steps, operations or processes can be performed in different orders. Some of the steps, operations or processes can be performed simultaneously. The attached method claims (if any) present the elements of each step, operation or process in an exemplary order, and are not meant to be limited to the specific order or level presented. These can be performed in serial, linear, parallel or different orders. It should be understood that the instructions, operations and systems described can usually be integrated together in a single software / hardware product, or be packaged in multiple software / hardware products.

[0135] In one aspect, the term "coupled" or the like may refer to a direct coupling. On the other hand, the term "coupled" or the like may refer to an indirect coupling.

[0136] Terms such as top, bottom, front, back, side, horizontal, vertical, etc. refer to an arbitrary frame of reference, not the usual gravitational frame of reference. Thus, such terms may extend upward, downward, diagonally, or horizontally in a gravitational frame of reference.

[0137] The present disclosure is provided to enable those skilled in the art to practice various aspects described herein. In some cases, well-known structures and magnets are shown in block diagram form to avoid blurring the concept of the subject technology. The present disclosure provides various examples of the subject technology, and the subject technology is not limited to these examples. Various modifications of these aspects will be apparent to those skilled in the art, and the principles described herein may be applied to other aspects.

[0138] All structural and functional equivalents to the elements throughout the various aspects described in this disclosure that are known or later become known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be covered by the claims. In addition, nothing disclosed herein is intended to be provided to the public regardless of whether the disclosure is explicitly stated in the claims. Pursuant to the provisions of 35 USC § 112, paragraph 6, no claim element shall be construed unless the element is expressly stated using the phrase "a method for" or, in the case of a method claim, the element is stated using the phrase "a step for".

[0139] The title, background, brief description of the drawings, abstract, and drawings are hereby incorporated into the present disclosure and are provided as illustrative examples of the present disclosure, rather than as limiting descriptions. They are not considered to be used to limit the scope or meaning of the claims. In addition, it can be seen in the detailed description that for the purpose of simplifying the present disclosure, the description provides illustrative examples, and various features are combined together in various specific implementations. The disclosed method should not be interpreted as reflecting the intention that the claimed subject matter requires more features than those expressly recited in each claim. On the contrary, as reflected in the claims, the inventive subject matter lies in less than all the features of a single disclosed configuration or operation. The claims are thereby incorporated into the specific embodiments, with each claim itself as a separately claimed subject matter.

[0140] The claims are not intended to be limited to the aspects described herein, but are to be given the full scope consistent with the language of the claims and encompass all legal equivalents. Nevertheless, none of the claims encompass subject matter that is inconsistent with applicable patent law requirements and should not be interpreted in such a manner.

Claims

1. A wristband for fixing a watch to a user, the wristband comprising: A first belt portion, the first belt portion comprising: first flexible magnets, wherein each of the first flexible magnets comprises a mixture of a polymer and a ferromagnetic material, wherein the first flexible magnets comprise a first permanent magnet; an outer cover surrounding each of the flexible magnets; an adhesive layer that bonds the flexible magnet to the outer cover; a first connector attached to a first side of the watch case; and a first soft magnetic portion, the first soft magnetic portion being located between the first permanent magnet and the first connector; and A second belt portion, said second belt portion comprising: a second permanent magnet; a second connector for attaching to a second side of the watch case; and A second soft magnetic portion, wherein the second soft magnetic portion is located between the second permanent magnet and the second connector.

2. The wristband of claim 1, wherein the outer cover comprises leather.

3. The wristband of claim 1 further comprising a support structure extending between the pairs of the first flexible magnets.

4. The wristband of claim 3, wherein the support structure comprises holes, wherein each of the holes is positioned between a corresponding pair of the first flexible magnets.

5. The wristband according to claim 3, wherein the width of the first flexible magnets is greater than the width of the supporting structure, so that the opposing pairs of the first flexible magnets are connected to each other outside the width of the supporting structure.

6. The wristband of claim 3, wherein the first connector is attached to the support structure.

7. The wristband according to claim 3, further comprising: A free end is opposite to the first connector, wherein the support structure extends continuously from the first connector to the free end.

8. A wristband, comprising: a first connector configured to connect to a watch case; A plurality of first segments, the plurality of first segments being formed from a mixture of a polymer and permanent magnetic particles, wherein the plurality of first segments comprises: a first permanent magnet along a first segment of the wristband; and a second permanent magnet along a second segment of the wristband, the second permanent magnet having a magnetic orientation different from the magnetic orientation of the first permanent magnet; a plurality of second segments, the plurality of second segments being formed of the polymer without the magnetic particles, the plurality of second segments being located between the first segment and the connector; a plurality of third sections between the first section and the second section, the plurality of third sections being formed of a mixture of the polymer and soft magnetic particles; and A retaining ring, the retaining ring being slidably disposed between the first connector and the free end, the retaining ring comprising: a second connector configured to connect to the watch case; and An opening, wherein the first permanent magnet is configured to magnetically couple to the second permanent magnet when the strap portion of the wristband extends through the opening and is folded upon itself.

9. The wristband of claim 8, further comprising a sintered permanent magnet at a free end of the wristband opposite the first connector.

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