Plug for power adapter

Abstract

Examples may provide a locking plug that may be locked to a power adapter and may also be unlocked to be removed from the power adapter. Different locking mechanisms may be included to prevent removal of the locking plug. The locking mechanisms may be moved and allowed to be removed using a tool. The locking plug may also be re-attached. Examples may also provide a retention feature that may secure the plug to the power adapter during use. The retention force may be overcome, allowing the plug to be removed from the power adapter. A force to retain the tabs of the power adapter in the slots of the plug may be provided by spring assemblies in the slots. These forces may also or alternatively be provided by one or more springs in or associated with the tabs.

Description

Cross-references to related applications

[0001] This application claims priority to U.S. Patent Application No. 19 / 340,107, filed September 25, 2025, and U.S. Provisional Application No. 63 / 700,495, filed September 27, 2024, the entire contents of which are incorporated herein by reference for all purposes. Background Technology

[0002] A power adapter system may include a power adapter and a plug. The plug may include power prongs that can be inserted into a corresponding wall socket. The power adapter can receive power from the plug. The power adapter can provide power using various connectors that can be located on the power adapter. In some such systems, the plug may be removed from the power adapter.

[0003] The ability to remove the plug from the power adapter allows for use with power adapters designed to conform to various standards in different countries. However, sometimes, the ability to remove the plug from the power adapter can be disadvantageous. For example, the plug may detach from the power adapter and be misplaced. Therefore, it may be desirable to be able to lock the plug to the power adapter.

[0004] In some cases, it may not be desirable to lock the plug to the power adapter. This could cause customer confusion, and the unlocking tool might be misplaced. However, it may still not be desirable to remove the plug from the power adapter too easily. For example, when unplugging a power adapter system from a wall outlet, it may not be desirable for the plug to detach from the power adapter. Therefore, a reliable retaining feature that secures the plug to the power adapter may be desirable.

[0005] Therefore, what is needed is a plug that can be locked to the power adapter or otherwise securely held during use. Summary of the Invention

[0006] Therefore, embodiments of the present invention can provide a plug that can be locked to a power adapter or otherwise securely held during use. In these and other embodiments of the invention, different locking mechanisms can be used. These locking mechanisms may involve including a locking mechanism within the locking plug to prevent removal of the locking plug. Tools can be used to move these locking mechanisms and allow removal of the locking plug. The locking plug can also be reattached.

[0007] In some situations, it may not be desirable to lock the plug to the power adapter. This could cause customer confusion, and unlocking tools could be lost. Instead of providing a locking feature structure, these and other embodiments of the invention provide a retaining feature structure that secures the plug to the power adapter. These retaining feature structures provide a retaining force that holds the plug in place within the power adapter during use. This retaining force can be overcome by a user who wishes to remove the plug from the power adapter.

[0008] These retaining features may include springs or other features that act to secure the tabs on the power adapter within a slot in the plug housing. In these and other embodiments of the invention, the spring may be located in the slot in the plug to retain the tabs on the power adapter. The spring may include a first spring having two arms. Each arm may include side protrusions such that the two side protrusions and the end of the slot in the housing form a retaining region for the tabs on the power adapter. The spring may also include two angled second springs attached to the end of each arm of the first spring and extending toward the retaining region and away from the first spring. The second springs may terminate in a contact surface. The contact surface may engage the bottom of the head of the tab of the power adapter and apply force thereto, thereby further securing the tab of the power adapter in place within the slot in the plug.

[0009] In this example, the force holding the power adapter's tab in the slot of the plug can be provided by a spring in the slot. In these and other embodiments of the invention, these forces can be provided by one or more springs in or associated with the tab. For example, the spring can be located in the tab. The tab can include a shaft and a head. The shaft can include a plunger attached to the head. The head and plunger can be movable relative to the shaft. The shaft can be fixed to the power adapter. The spring can be positioned to provide a force acting to push the plunger, and thus the head, toward the power adapter. The slot in the plug can include a recessed portion forming a retaining region. Once the power adapter's tab is positioned in the retaining region, a force that pushes the head toward the bottom of the slot in the housing and toward the power adapter can act to hold the power adapter's tab in place.

[0010] The components of these power adapters and plugs can be formed from a variety of materials. For example, tabs, springs, and their components, as well as other metal parts of the power adapter, can be formed by stretching, machining, stamping, forging, metal injection molding, machining, micromachining, 3D printing, or other manufacturing processes. These metal parts can be formed from stainless steel, steel, copper, copper-titanium, phosphor bronze, or other materials or combinations thereof. These metal parts can be plated or coated with one or more layers of nickel, palladium, palladium-nickel, gold, or other materials or combinations thereof.

[0011] Non-metallic parts, such as housings, shells and their components, and other non-metallic parts, may be formed using injection molding or other molding, 3D printing, machining or other manufacturing processes. Non-metallic parts may be formed from silicon or silicone resin, rubber, hard rubber, plastics, nylon, glass-filled nylon, elastomers, liquid crystal polymers (LCPs), ceramics, polycarbonate or other non-metallic materials or combinations of materials.

[0012] Various embodiments of the present invention may include one or more of these and other features described herein. The spirit and advantages of the invention can be better understood by referring to the following detailed description and accompanying drawings. Attached Figure Description

[0013] Figure 1 An example of a locking plug and a power adapter according to an embodiment of the present invention is shown; Figure 2 An example is illustrated of a locking plug and a power adapter having an unlocking channel according to an embodiment of the present invention; Figure 3 A locking plug according to an embodiment of the present invention is illustrated; Figure 4 Another locking plug according to an embodiment of the invention is illustrated; Figure 5 Another locking plug according to an embodiment of the invention is illustrated; Figure 6 Another locking plug according to an embodiment of the invention is illustrated; Figure 7 Another locking plug according to an embodiment of the invention is illustrated; Figure 8 An example of a plug having a slot for retaining a feature structure according to an embodiment of the invention is shown; Figure 9 A cross-sectional side view of a plug having slotted and retaining features according to an embodiment of the present invention is shown; Figure 10 A cross-sectional side view of a portion of a plug having slotted and retaining features according to an embodiment of the invention is shown; Figure 11 An example of a retaining feature structure of a plug according to an embodiment of the present invention is shown; Figure 12 Another retaining feature structure of the plug according to an embodiment of the present invention is illustrated; Figure 13 A side view illustrating another retaining feature structure of a plug according to an embodiment of the present invention is shown; Figure 14 This is an oblique view of the retaining feature structure of a plug according to an embodiment of the present invention; Figure 15 This is a detailed view of a portion of the retaining feature structure of a plug according to an embodiment of the present invention; Figure 16 Another plug with a slot for retaining a feature structure is illustrated according to an embodiment of the invention; Figure 17 A cross-sectional view illustrating the retaining feature structure of a plug according to an embodiment of the present invention is shown; Figure 18 This is an exploded view of the tab of a power adapter according to an embodiment of the present invention; Figure 19 and Figure 20 An example illustrates the surface in the slot of a plug according to an embodiment of the invention for holding a feature structure; and Figure 21 An example is illustrated of a protective structure in the slot of a plug according to an embodiment of the invention for holding a surface containing a feature structure; and Figure 22 Another retaining feature structure of the plug according to an embodiment of the present invention is illustrated. Detailed Implementation

[0014] Figure 1 An example is illustrated of a locking plug and a power adapter according to an embodiment of the invention. Other included accessories... Figure 1 As such, the accompanying drawings are shown for illustrative purposes only and do not limit the embodiments or claims of the invention.

[0015] The locking plug 120 may include pins 130 for mating with an opening in a wall socket. The locking plug 120 may include a nose 122. The nose 122 may include a contact that, when the locking plug 120 is mated with a power adapter 110, mates with a contact in an opening 112 of the power adapter 110. The power adapter 110 may include a connector (not shown) that accepts a plug for a power cable, data cable, or other connection.

[0016] Power adapter 110 may include a tab 114. When locking plug 120 engages with power adapter 110, tab 114 may fit into a slot (not shown). A typical plug can be removed from power adapter 110 by pulling the locking plug in direction 150. A lead in locking plug 120 may provide a retaining force to provide a tactile response to the user when locking plug 120 is removed.

[0017] In some cases, it may be desirable to restrict or prevent the locking plug 120 from being removed from the power adapter 110. For example, if removed from the power adapter 110, the locking plug 120 may become misaligned. Therefore, embodiments of the invention may provide a locking plug 120 that locks onto the power adapter 110. In one example, the locking plug 120 may be glued to the power adapter 110. In other embodiments of the invention, it may be desirable to be able to unlock the locking plug 120 and remove it from the power adapter 110. In such locking plugs, a tool may be used to unlock the locking plug 120 from the power adapter 110. The tool may be inserted into either the locking plug 120 or the power adapter 110 to unlock the locking plug 120. For example, the tool may be inserted into an opening in the locking plug 120. This opening may be inconspicuous. An example is shown in the following figure.

[0018] Figure 2 An example of a locking plug and power adapter with an unlocking channel according to an embodiment of the present invention is illustrated. The locking plug 120 may include pins 130. When mated with a corresponding wall socket, the pins 130 can extend from the locking plug 120. The pins 130 can be folded down into a slot 220 for transport. As shown, the locking plug 120 can be attached to the power adapter 110.

[0019] The locking plug 120 may include a channel or opening 210. The opening 210 may be located in a slot 220. The opening 210 may be below the pin 130 when the pin 130 is folded down in the slot 220 for transport. The opening 210 may be accessible when the pin 130 is raised.

[0020] In these and other embodiments of the invention, different locking mechanisms may be used. These locking mechanisms may involve including a locking mechanism in the locking plug 120 that blocks the tab 114 along direction 150 (…). Figure 1 The movement of the locking mechanism (as shown) prevents the removal of the locking plug 120. These locking mechanisms can be moved to release the tab 114 and allow the locking plug 120 to be removed from the power adapter 110.

[0021] In these and other embodiments of the invention, various tools can be inserted into the opening 210 to unlock the locking plug 120 from the power adapter 110. For example, a tool such as a straightened paperclip can be pushed into the opening 210. The internal plate can be pushed open by the tool, thereby releasing the tab 114 and allowing the locking plug 120 to be removed from the power adapter 110. The tool may include a magnet that can be used to move the internal magnet, thereby releasing the tab 114 and allowing the locking plug 120 to be removed from the power adapter 110. An example is shown in the figure below.

[0022] Figure 3 An example of a locking plug according to an embodiment of the invention is shown. When the locking plug 120 is locked to the power adapter 110 (e.g., Figure 1 As shown, the locking mechanism in the locking plug 120 can secure the tab 114 in the appropriate position within the locking plug 120, thereby preventing the locking plug 120 from being removed from the power adapter 110. That is, it prevents the locking plug 120 from moving relative to the tab 114 in direction 150. In this example, the locking mechanism can be a locking lever 324, which can prevent the locking plug 120 from moving relative to the tab 114 in direction 150 without excessive force.

[0023] The locking plug 120 may include a housing 310 supporting the nose portion 122 and the pins 130. A tab 114 of the power adapter 110 can lock the locking plug 120 to the power adapter 110. Specifically, the locking plug 120 may include a locking spring 320. The locking spring 320 may include a locking lever 324, an impact plate 322, and a support end 326. The impact plate 322 may be supported by the housing 310 at position 313, and the support end 326 may be supported by the housing 310 at position 312. This helps to keep the locking lever engaged with the tab 114, thereby preventing the locking plug 120 from being removed from the power adapter 110. In this position, the locking spring 320 may be in a non-deflected position.

[0024] In this example, the locking spring 320 can be manipulated using an external tool such as a straightened paperclip or other tool 390. Specifically, the tool 390 can be placed in the opening 210 and pushed into the locking plug 120 until the tool 390 reaches the impact plate 322. Pressure can be applied to the impact plate 322. The tool 390 can push the impact plate 322 away from the tab 114. The locking lever 324 can be pushed downward (as shown) away from the path of the tab 114 into a deflected position, thereby releasing the locking plug 120 to move in direction 150 for removal.

[0025] After removal, the impact plate 322 can remain supported by the housing 310 at position 313, and the support end 326 can remain supported by the housing 310 at position 312. The locking spring 320 can return to its non-deflected position.

[0026] When the locking plug 120 is reattached to the power adapter 110, the locking plug 120 can move in the opposite direction 150. The tab 114 engages the inclined surface of the locking lever 324, which pushes the locking spring 320 into its deflected position. As the locking plug 120 moves in the opposite direction 150, the locking spring 320 can deflect further. Once the tab 114 has moved beyond the locking lever 324, the deflection force applied to the locking spring 320 can be removed, and the locking spring 320 can return to its non-deflected position (as shown), thereby securing the locking plug 120 to the power adapter 110.

[0027] The locking plug 120 may include pins 130. Pins 130 can be arranged to mate in a wall socket. The specific shape of the pins 130 may vary depending on the wall socket used in different countries. The pins are rotatable between a closed position and an open position; in the closed position, the pins are located in a slot 220 (e.g., Figure 2 As shown, in the open position, the prongs extend from the housing 310 of the locking plug 120. The prongs 130 are rotatable between these positions about a pivot 350. The pivot 350 is movable in a guide 352. A spring 360 can apply a force to the pivot 350 to provide a tactile response as the prongs 130 move between the open and closed positions.

[0028] In this example, tool 390 may be a straightened paperclip or a similar structure. In these and other embodiments of the invention, opening 210 may be narrower than a conventional paperclip and may require a specialized tool. This can help prevent unintentional or unintended removal of the locking plug 120 from the power adapter 110.

[0029] Figure 4 Another locking plug according to an embodiment of the invention is illustrated. When the locking plug 120 is locked to the power adapter 110 (e.g. Figure 1 As shown, the locking mechanism in the locking plug 120 can secure the tab 114 in the appropriate position within the locking plug 120, thereby preventing the locking plug 120 from being removed from the power adapter 110. That is, it can prevent the locking plug 120 from moving relative to the tab 114 in the direction 150. In this example, the locking mechanism can be a locking lever 324, which can prevent the locking plug 120 from moving relative to the tab 114 in the direction 150 without excessive force.

[0030] The locking plug 120 may include a housing 310 supporting the nose portion 122 and the pins 130. A tab 114 of the power adapter 110 can lock the locking plug 120 to the power adapter 110. Specifically, the locking plug 120 may include a locking spring 320. The locking spring 320 may include a locking lever 324, an impact plate 322, and a support end 326. The impact plate 322 may be supported by the housing 310 at position 313, and the support end 326 may be supported by the housing 310 at position 312. This can help keep the locking lever 324 engaged with the tab 114, thereby preventing the locking plug 120 from being removed from the power adapter 110. In this position, the locking spring 320 may be in a non-deflected position.

[0031] In this example, the locking spring 320 can be manipulated using an external tool such as a straightened paperclip or other tool 390. Specifically, the tool 390 can be placed in the opening 210, guided by the loop 372 of the locking wire 370, and pushed into the locking plug 120 until the tool 390 reaches the impact plate 322. Pressure can be applied to the impact plate 322. The tool 390 can push the impact plate 322 away from the tab 114. The locking lever 324 can be pushed upward (as shown) away from the path of the tab 114 into a deflected position, thereby releasing the locking plug 120 to move in direction 150 for removal.

[0032] After removal, the impact plate 322 can remain supported by the housing 310 at position 313, and the support end 326 can remain supported by the housing 310 at position 312. The locking spring 320 can return to its non-deflected position.

[0033] When the locking plug 120 is reattached to the power adapter 110, the locking plug 120 can move in the opposite direction 150. The tab 114 engages the inclined surface of the locking lever 324, which pushes the locking spring 320 into its deflected position. As the locking plug 120 moves in the opposite direction 150, the locking spring 320 can deflect further. Once the tab 114 has moved beyond the locking lever 324, the deflection force on the locking spring 320 is removed, and the locking spring 320 returns to its non-deflected position (as shown), thereby securing the locking plug 120 to the power adapter 110.

[0034] The locking plug 120 may include pins 130. Pins 130 can be arranged to mate in a wall socket. The specific shape of the pins 130 may vary depending on the wall socket used in different countries. The pins are rotatable between a closed position and an open position; in the closed position, the pins are located in a slot 220 (e.g., Figure 2As shown, in the open position, the prongs extend from the housing 310 of the locking plug 120. The prongs 130 are rotatable between these positions about a pivot 350. The pivot 350 is movable in a guide 352. A spring 360 can apply a force to the pivot 350 to provide a tactile response as the prongs 130 move between the open and closed positions.

[0035] In this example, tool 390 may be a straightened paperclip or a similar structure. In these and other embodiments of the invention, opening 210 may be narrower than a conventional paperclip and may require a specialized tool. This can help prevent unintentional or unintended removal of the locking plug 120 from the power adapter 110. In this example, the loop 372 of the locking wire 370 can guide tool 390 toward impact plate 322. The locking wire can be used to provide a tactile response to the removal of the locking plug 120 from the power adapter 110 when the locking plug is unlocked.

[0036] Figure 5 Another locking plug according to an embodiment of the invention is illustrated. When the locking plug 120 is locked to the power adapter 110 (e.g. Figure 1 As shown, the locking mechanism in the locking plug 120 can secure the tab 114 in the appropriate position within the locking plug 120, thereby preventing the locking plug 120 from being removed from the power adapter 110. That is, it can prevent the locking plug 120 from moving relative to the tab 114 in direction 150. In this example, the locking mechanism can be a locking magnet 512, which can prevent the locking plug 120 from moving relative to the tab 114 in direction 150 without excessive force.

[0037] The locking plug 120 may include a housing 310 that supports the nose portion 122 and the pins 130. A tab 114 of the power adapter 110 can lock the locking plug 120 to the power adapter 110. Specifically, the locking plug 120 may include a locking magnet 512. The locking magnet 512 can be secured laterally by the housing 310 and can move vertically within the channel 520 (as shown).

[0038] In this example, the locking magnet 512 can be manipulated using an external tool such as a magnet on the support length or another tool (not shown). Specifically, the tool can be placed in the opening 210 and lowered until it reaches the channel 520. The magnet of the tool can pull the locking magnet 512 upwards (as shown) and away from the tab 114. This allows the locking plug 120 to move in direction 150 to be removed from the power adapter 110. After removal, the locking magnet 512 can return to its original position.

[0039] When the locking plug 120 is reattached to the power adapter 110, the locking plug 120 can move in the opposite direction 150. The tab 114 can engage the inclined surface of the locking magnet 512, which can push the locking magnet 512 upwards (as shown) into its deflected position. As the locking plug 120 moves in the opposite direction 150, the locking magnet 512 can be further deflected. Once the tab 114 has moved beyond the locking magnet 512, the deflection force on the locking magnet 512 is removed, and the locking magnet 512 can return to its non-deflected position (as shown), thereby securing the locking plug 120 to the power adapter 110.

[0040] The locking plug 120 may include pins 130. Pins 130 can be arranged to mate in a wall socket. The specific shape of the pins 130 may vary depending on the wall socket used in different countries. The pins are rotatable between a closed position and an open position; in the closed position, the pins are located in a slot 220 (e.g., Figure 2 As shown, in the open position, the prongs extend from the housing 310 of the locking plug 120. The prongs 130 are rotatable between these positions about a pivot 350. The pivot 350 is movable in a guide 352. A spring 360 can apply a force to the pivot 350 to provide a tactile response as the prongs 130 move between the open and closed positions.

[0041] In this example, tool 390 may be a straight wire, a long magnet, or a similar structure with a magnet at one end. In these and other embodiments of the invention, opening 210 may be narrower than the width of a conventional paperclip and may require a specialized tool. This can help prevent the locking plug 120 from being accidentally or unintentionally removed from the power adapter 110.

[0042] Figure 6 Another locking plug according to an embodiment of the invention is illustrated. When the locking plug 120 is locked to the power adapter 110 (e.g. Figure 1 As shown, the locking mechanism in the locking plug 120 can secure the tab 114 in the appropriate position within the locking plug 120, thereby preventing the locking plug 120 from being removed from the power adapter 110. In other words, it can prevent the locking plug 120 from moving relative to the tab 114 in direction 150. In this example, the locking mechanism can be a locking spring 630, which can prevent the locking plug 120 from moving relative to the tab 114 in direction 150 without excessive force.

[0043] The locking plug 120 may include a housing 310 supporting the nose portion 122 and the pins 130. A tab 114 of the power adapter 110 can lock the locking plug 120 to the power adapter 110. Specifically, the locking plug 120 may include a locking spring 630. The locking spring 630 may include an end 634 and a locking edge 632 for holding the tab 114 in place. The end 634 may be movable by a magnet 620, such that the locking edge 632 can be moved to allow removal of the locking plug 120.

[0044] In this example, the magnet 620 can be manipulated using an external tool such as a magnetic tool 610. Specifically, the magnetic tool 610 can be placed in the opening 210 and lowered until it is close to the magnet 620. The magnet of the tool 690 can pull the magnet 620 upward (as shown). This pulls the end 634 of the locking spring 630 upward, which allows the locking plug 120 to move in direction 150 to be removed from the power adapter 110. After removal, the magnetic tool 610 can be removed, and the magnet 620 can return to its original position.

[0045] When the locking plug 120 is reattached to the power adapter 110, the locking plug 120 can move in the opposite direction 150. The tab 114 can engage the inclined surface of the locking spring 630, which can push the locking spring 630 upwards (as shown) into its deflected position. As the locking plug 120 moves in the opposite direction 150, the locking spring 630 can deflect further. Once the tab 114 has moved beyond the locking edge 632, the deflection force on the locking spring 630 is removed, and the locking spring 630 can return to its non-deflected position (as shown), thereby securing the locking plug 120 to the power adapter 110.

[0046] The locking plug 120 may include pins 130. Pins 130 can be arranged to mate in a wall socket. The specific shape of the pins 130 may vary depending on the wall socket used in different countries. The pins are rotatable between a closed position and an open position; in the closed position, the pins are located in a slot 220 (e.g., Figure 2 As shown, in the open position, the prongs extend from the housing 310 of the locking plug 120. The prongs 130 are rotatable between these positions about a pivot 350. The pivot 350 is movable in a guide 352. A spring 360 can apply a force to the pivot 350 to provide a tactile response as the prongs 130 move between the open and closed positions.

[0047] In this example, tool 390 may be a straight wire, a long magnet, or a similar structure with a magnet at one end. In these and other embodiments of the invention, opening 210 may be narrower than the width of a conventional paperclip and may require a specialized tool. This can help prevent the locking plug 120 from being accidentally or unintentionally removed from the power adapter 110.

[0048] Figure 7 Another locking plug according to an embodiment of the invention is illustrated. When the locking plug 120 is locked to the power adapter 110 (e.g. Figure 1 As shown, the locking mechanism in the locking plug 120 can secure the tab 114 in the appropriate position within the locking plug 120, thereby preventing the locking plug 120 from being removed from the power adapter 110. That is, it can prevent the locking plug 120 from moving relative to the tab 114 in direction 150. In this example, the locking mechanism can be a sliding magnet 710, which can prevent the locking plug 120 from moving relative to the tab 114 in direction 150 without excessive force.

[0049] The locking plug 120 may include a housing 310 supporting the nose portion 122 and the pins 130. A tab 114 of the power adapter 110 can lock the locking plug 120 to the power adapter 110. Specifically, the locking plug 120 may include a sliding magnet 710. The sliding magnet 710 may be supported by a slider 730. The slider 730 may include a locking edge 732 for holding the tab 114 in place. The sliding magnet 710 may be movable to allow the locking edge 732 of the slider 730 to release the tab 114, thereby allowing the removal of the locking plug 120.

[0050] In this example, the sliding magnet 710 can be manipulated using an external tool such as a magnetic tool (not shown). Specifically, the tool can be placed in the opening 210 and pushed into the locking plug 120 until it reaches the sliding magnet 710. The tool can be guided by a loop 372 of the locking wire 370. The magnet of the tool can pull the sliding magnet 710 in direction 150. This allows the locking plug 120 to move in direction 150 to be removed from the power adapter 110. After removal, the tool can be removed, and the sliding magnet 710 can return to its original position.

[0051] When the locking plug 120 is reattached to the power adapter 110, the locking plug 120 can move in the opposite direction 150. The tab 114 can engage the inclined surface of the slider 730, which can push the slider 730 upwards (as shown) to its deflected position. As the locking plug 120 moves in the opposite direction 150, the slider 730 can deflect further. Once the tab 114 has moved beyond the locking edge 732, the deflection force on the slider 730 is removed, and the slider 730 can return to its non-deflected position (as shown), thereby securing the locking plug 120 to the power adapter 110.

[0052] The locking plug 120 may include pins 130. Pins 130 can be arranged to mate in a wall socket. The specific shape of the pins 130 may vary depending on the wall socket used in different countries. The pins are rotatable between a closed position and an open position; in the closed position, the pins are located in a slot 220 (e.g., Figure 2 As shown, in the open position, the prongs extend from the housing 310 of the locking plug 120. The prongs 130 are rotatable between these positions about a pivot 350. The pivot 350 is movable in a guide 352. A spring 360 can apply a force to the pivot 350 to provide a tactile response as the prongs 130 move between the open and closed positions.

[0053] In this example, the tool may be a straight wire with a magnet at one end, a long magnet, or a similar structure. In these and other embodiments of the invention, the opening 210 may be narrower to help prevent the locking plug 120 from being accidentally or unintentionally removed from the power adapter 110.

[0054] In some situations, it may not be desirable to lock the plug to the power adapter. This could cause customer confusion, and unlocking tools could be lost. Instead of providing a locking feature structure, these and other embodiments of the invention provide a retaining feature structure that secures the plug to the power adapter. These retaining feature structures provide a retaining force that holds the plug in place within the power adapter during use. This retaining force can be overcome by a user who wishes to remove the plug from the power adapter.

[0055] These retaining features may include springs or other features that act to secure the tabs on the power adapter within a slot in the plug. In these and other embodiments of the invention, the spring may be located in the slot in the plug to retain the tabs on the power adapter. The spring may include a first spring having two arms. Each arm may include side protrusions such that the two side protrusions and the end of the first spring form a retaining region for the tabs on the power adapter. The spring may also include two angled second springs attached to the end of each arm of the first spring and extending toward the retaining region and away from the first spring. The second springs may terminate in a contact surface. The contact surface may engage the bottom of the head of the tab of the power adapter and apply force thereto, thereby further securing the tab of the power adapter in place within the slot in the plug. An example is shown in the figure below.

[0056] Figure 8 An example of a plug with a slot for retaining a characteristic structure according to an embodiment of the invention is illustrated. The plug 800 may include a housing formed by an outer housing 810 and an inner housing 820. A nose portion 822 may extend from the inner housing 820. A slot 824 may be formed in the inner housing 820. The slot 824 may be arranged to receive the head 115 and shaft 116 of the tab 114 of the power adapter 110 (both within...). Figure 1 (As shown in the image). Nose 822 can be provided with nose 122 ( Figure 1 (As shown) Same or similar function. Plug 1600 ( Figure 16 (as shown), plug 800 and plug 120 ( Figure 1 (As shown) Each can perform the same or similar function. The pin 830 can be arranged to mate in a wall socket. The power received at the pin 830 can be supplied to the corresponding contact (not shown) in the power adapter 110 at the contact (not shown) in the opening 823 in the nose 822.

[0057] The slot 824 may include retaining features for holding the tab 114 of the power adapter 110 when it mates with the plug 800. The slot 824 may include a spring assembly having a first spring 850 and a second spring 860. The first spring 850 and the second spring 860 may be formed as separate springs or as a single, integral spring. A third spring 870 may be positioned on opposite sides of the slot 824, out of view. The first spring 850, the second spring 860, and the third spring 870 may be formed as separate springs, or two or more of the first spring 850, the second spring 860, and the third spring 870 may be combined into an integral structure.

[0058] When the plug 800 mates with the power adapter 110, the head 115 of the tab 114 of the power adapter 110 can be inserted into the wider upper portion of the slot 824, while the narrower shaft can be inserted into the narrower lower portion of the slot 824. The head 115 of the tab 114 can engage the second spring 860 and the third spring 870, thereby deflecting them downwards (as shown). The shaft 116 can engage the protrusions 852 and 854 on the first spring 850 (as shown). Figure 11 As shown), thus enabling the first arm 856 and the second arm 858 of the first spring 850 (both in...) Figure 11 (As shown in the diagram) deflect away from each other. When the tab 114 is fully inserted, the first arm 856 and the second arm 858 of the first spring 850 can return to the relaxed position. The shaft 116 and the head 115 of the tab 114 can be held in the holding area partially defined by the first protrusion 852 and the second protrusion 854 of the first spring 850. The contact surface 862 of the second spring 860 and the contact surface 872 of the third spring 870 (both in the diagram) deflect away from each other. Figure 11 (As shown in the figure) The head 115 of the engageable tab 114 provides an upward force on the underside of the head.

[0059] When the plug 800 is disconnected from the power adapter 110, the shaft 116 can engage the first protrusion 852 and the second protrusion 854 on the first spring 850, thereby causing the first arm 856 and the second arm 858 of the first spring 850 to deflect away from each other.

[0060] Figure 9 A cross-sectional side view of a plug having a slot and retaining features according to an embodiment of the invention is illustrated. The plug 800 may include an outer housing 810 and an inner housing 820. A nose portion 822 may extend from the inner housing 820. A slot 824 may extend into the inner housing 820. The slot may support a head 115 and a shaft 116 (both within) for retaining tabs 114. Figure 1 The spring assembly (shown in the figure) may include a first spring 850 and a second spring 860. The first spring 850 may include a protrusion 852. In this cross-sectional view, the third spring 870 has been removed. The first spring 850, the second spring 860, and the third spring 870 may be formed individually, as a single integral piece, or as two or more separate pieces.

[0061] Figure 10 A cross-sectional side view of a portion of a plug having a slot and retaining features according to an embodiment of the invention is illustrated. A slot 824 may be formed in an inner housing 820. A first spring 850 and a second spring 860 may be positioned in the slot 824. The first spring may include a connecting portion 857.

[0062] When the protrusion 114 ( Figure 1As shown, when inserting the plug 800 into the slot 824 within the inner housing 820, and when removing it from the slot, it may be desirable to protect the first spring 850 and the second spring 860 from damage. Therefore, the first spring 850 may include an extension 853. The extension 853 may help hold the first spring 850 in place. Additionally, the slot 824 may include an edge 826. When the tab 114 is inserted, the edge 826 protects the first spring 850 and the second spring 860.

[0063] When the plug 800 mates with the power adapter 110, the shaft 116 and head 115 of the tab 140 of the power adapter 110 can be positioned in a retaining area within the slot 824. The retaining area can be formed by the protrusions 852 and 854 of the first spring 850 (in... Figure 11 (as shown in the diagram) defines the area. The retaining area may also be defined by the end of the slot 824 of the inner housing 820 or the narrowing portion 821.

[0064] Figure 11 An example of a retaining feature structure for a plug according to an embodiment of the present invention is illustrated. This retaining feature structure may include a first spring 850, a second spring 860, and a third spring 870. The first spring 850, the second spring 860, and the third spring 870 may be formed individually, as a single integral piece, or as two or more separate pieces.

[0065] The first spring 850 may include a first arm 856 and a second arm 858 joined by a coupling portion 857. The first arm 856 may include a first protrusion 852, and the second arm 858 may include a second protrusion 854. The first protrusion 852 may be wider than some or all of the first arms 856, and the second protrusion 854 may be wider than some or all of the second arms 858. The second spring 860 may include a contact surface 862. The third spring 870 may include a contact surface 872. When the head 115 of the tab 114 and the shaft 116 are inserted into the slot 824, the shaft 116 may encounter the first protrusion 852 and the second protrusion 854. This pushes the first arm 856 and the second arm 858 away from each other to allow the tab 114 to reach the holding area. When the plug 800 ( Figure 8 (as shown) and power adapter 110 ( Figure 1 When engaged (as shown), the head 115 of the tab 114 and the shaft 116 are in the holding area, and the contact surface 862 of the second spring 860 and the contact surface 872 of the third spring 870 can meet and abut against the bottom of the head 115 of the tab 114 to provide force, thereby helping to hold the tab 114 in the slot 824 (as shown). Figure 8 (As shown). The retaining area may be formed by the end of the first protrusion 852, the second protrusion 854, and the narrowing portion 821 of the slot 824. Figure 8 (As shown)

[0066] The second spring 860 may be attached to the first spring 850 at position 864 by soldering, spot welding, or laser welding. The third spring 870 may be attached to the first spring 850 at position 874 by soldering, spot welding, or laser welding. Alternatively, the second spring 860 may be formed together with the first spring 850, the third spring 870 may be formed together with the first spring 850, or both the second spring 860 and the third spring 870 may be formed together with the first spring 850.

[0067] Figure 12 Another retaining feature structure of the plug according to an embodiment of the present invention is illustrated. This retaining feature structure may include a first spring 850, a second spring 1260, and a third spring 1270. The first spring 850, the second spring 1260, and the third spring 1270 may be formed individually, as a single integral piece, or as two or more separate pieces.

[0068] The second spring 1260 may include an extension 1264 and a contact surface 1262. The third spring 1270 may include an extension 1274 and a contact surface 1272. Adding an extension 1264 to the second spring 1260 and an extension 1274 to the third spring 1270 provides additional bending beams for the second spring 1260 and the third spring 1270, thereby helping to prevent wear and breakage during use.

[0069] When the plug is 800 ( Figure 8 (as shown) and power adapter 110 ( Figure 1 When engaged (as shown), the head 115 of the tab 114 and the shaft 116 are in the holding area, and the contact surface 1262 of the second spring 1260 and the contact surface 1272 of the third spring 1270 can meet and abut against the bottom of the head 115 of the tab 114 to provide force, thereby helping to hold the tab 114 in the slot 824 (as shown). Figure 8 As shown in the figure.

[0070] The second spring 1260 can be attached to the first spring 850 by soldering, spot welding, or laser welding. The third spring 1270 can be attached to the first spring 850 by soldering, spot welding, or laser welding. Alternatively, the second spring 1260 can be formed together with the first spring 850, the third spring 1270 can be formed together with the first spring 850, or both the second spring 1260 and the third spring 1270 can be formed together with the first spring 850. An example of forming the springs together is shown in the figure below.

[0071] Figure 13A side view illustrating another retaining feature structure of the plug according to an embodiment of the invention is shown. In this example, the tab 114 has been moved to the retaining area. The contact surface 862 of the second spring 860 can contact the underside of the head 115 of the tab 114. The second spring 860 and the first spring 850 can be formed together and joined by a fold 880. The fold 880 and other features of the combined second spring 860 and first spring 850 can be formed by stamping, printing, forging or other processes.

[0072] Figure 14 This is a tilted view of the retaining feature structure of a plug according to an embodiment of the present invention. A first spring 850 and a second spring 860 may be formed together and joined by a fold 880. The second spring 860 may include a contact surface 862.

[0073] like Figure 11 As shown, the first spring 850 may include a first protrusion 852 on the first arm 856 and a second protrusion 854 on the second arm 858. When the tab 114 moves to the holding region in the slot 824, the shaft 116 may push the first protrusion 852 and the second protrusion 854, thereby moving the first arm 856 and the second arm 858 away from each other. This movement may cause torsional motion in either or both of the first arm 856 and the second arm 858. Therefore, embodiments of the invention may provide reinforcements on the first protrusion 852 on the first arm 856 and the second protrusion 854 on the second arm 858. These reinforcements may help prevent or limit torsion of the first arm 856 and the second arm 858. An example is shown in the figure below.

[0074] Figure 15 This is a detailed view of a portion of the retaining feature structure of a plug according to an embodiment of the present invention. The first spring 850 may include a first protrusion 852 on the first arm 856. When the plug 800 ( Figure 8 (as shown) and power adapter 110 ( Figure 1When engaged (as shown), the tab 114 can move to the holding area in the slot 824. When this occurs, the shaft 116 can push the first protrusion 852 and the second protrusion 854, thereby moving the first arm 856 and the second arm 858 away from each other. This movement can cause torsional motion in either or both of the first arm 856 and the second arm 858. Therefore, embodiments of the invention may provide reinforcements on the first protrusion 852 on the first arm 856 and the second protrusion 854 on the second arm 858. These reinforcements can help prevent or limit torsion of the first arm 856 and the second arm 858. For example, the protrusion 852 may be wider than some or all of the rest of the first arm 856 of the first spring 850. A raised wall portion 857 may be formed along the outer edge of the protrusion 852 for further reinforcement. To improve flexibility, a notch 855 may be formed adjacent to or near the raised wall portion 857. The second protrusion 854 ( Figure 11 (As shown) may include mirrored or similar features. These reinforcing features may help prevent or limit the twisting of the first arm 856 and the second arm 858 during the mating of the plug 800 with the power adapter 110.

[0075] In the above example, the force holding the tabs of the power adapter in the slot of the plug can be provided by a spring in the slot. In these and other embodiments of the invention, these forces can be provided by one or more springs in or associated with the tabs. For example, the springs can be located in the tabs. The tabs can include a shaft and a head. The shaft can include a plunger attached to the head. The head and plunger can be movable relative to the shaft. The shaft can be fixed to the power adapter. The springs can be positioned to provide a force acting to push the plunger, and thus the head, toward the power adapter. The slot in the plug can include a recessed portion forming a retaining region. Once the tabs of the power adapter are positioned in the retaining region, the force pushing the head toward the power adapter can be applied to hold the tabs of the power adapter in place. An example is shown in the figure below.

[0076] Figure 16 Another plug with a slot for retaining a feature structure is illustrated according to an embodiment of the invention. The plug 1600 may include something similar to an outer housing 810 ( Figure 8 The plug 1600 may also include an outer housing (not shown). The inner housing 1620 may include a nose 1622 and a slot 1630. The nose 1622 may be similar to nose 822 (shown in the diagram). Figure 8 (as shown) and nose 122 ( Figure 1 (As shown). Slot 1630 can receive tab 1650. Tab 1650 can perform with tab 114 ( Figure 1 Similar functions as shown. Plug 1600, plug 800 ( Figure 8 (as shown) and plug 120 ( Figure 1(As shown) can each perform the same or similar functions. The tab 1650 can be attached to a power adapter, such as power adapter 110 ( Figure 1 (As shown). The figure below shows more details of the protrusion 1650 and the slot 1630.

[0077] Figure 17 A cross-sectional view illustrating the retaining feature structure of a plug according to an embodiment of the present invention is shown. These retaining feature structures may include surfaces in the tabs 1650 and slots 1630 of the inner housing 1620. When the plug 1600 is connected to the power adapter 110 ( Figure 1 When engaged (as shown), the head 1652 of the tab 1650 can be positioned in a retaining region 1634 in the surface of the slot 1630. A spring 1656 in the tab 1650 can push the head 1652 downwards, thereby seating it in the retaining region 1634. This holds the tab 1650 in the proper position in the retaining region 1634, thereby securing the plug 1600 to the power adapter 110.

[0078] More specifically, tab 1650 may include head 1652. Head 1652 may be applied, for example, with glue or other adhesives, fastener 2253 ( Figure 22 (As shown) or other adhesive structures are attached to the plunger 1658. The plunger 1658 may be secured in the shaft 1654. The spring 1656 may be around the plunger 1658 and within the shaft 1654. The head 1652 and the plunger 1658 may be separate pieces for the assembly, but in these and other embodiments, the head 1652 and the plunger 1658 may be formed as a single piece. The shaft 1654 may be attached to the housing or other part of the power adapter 110.

[0079] Spring 1656 can be compressed between flange 1659 of plunger 1658 and flange 1655 of shaft 1654. With shaft 1654 fixed to power adapter 110, spring 1656 can push plunger 1658 downward. This pulls down head 1652 of tab 1650, thereby helping to seat it in retaining region 1634 in slot 1630.

[0080] The slot 1630 may have various profiles configured to provide a desired tactile response when a user attaches the plug 1600 to the power adapter 110. For example, the slot 1630 may include a recess 1632 leading to a protrusion 1636. A minimal amount of force may be required to move the tab 1650 through the recess 1632 until it reaches the protrusion 1636. A higher amount of force may be required upon reaching the protrusion 1636. Once the head 1652 of the tab 1650 reaches the holding region 1634 in the slot 1630, the force required for insertion may decrease again. The force required for withdrawal may be higher as the head 1652 moves out of the holding region 1634 and past the protrusion 1636. The force may decrease as the head 1652 moves through the recess 1632 and out of the slot 1630.

[0081] The force required to insert and withdraw the tab 1650 into the slot 1630 can be varied. For example, the depth and slope of the edges of the recess 1632, the protrusion 1636, and the retaining region 1634 can be customized to provide the desired insertion and withdrawal profiles. Additionally, the shape of the head 1652 and the characteristics of the spring 1656 can be altered to provide the desired insertion and withdrawal profiles.

[0082] Figure 18 This is an exploded view of a tab of a power adapter according to an embodiment of the present invention. The tab 1650 may include a head 1652 and a shaft 1654. Both the head 1652 and the shaft 1654 may be metallic. A spring 1656 may be present around a plunger 1658 and within the shaft 1654. The spring 1656 may be formed of steel, such as spring steel, or other materials. The spring 1656 may be formed to be in a compressed state within the tab 1650. An adapter 1660 may be attached to or may form part of the housing of a power adapter 110. A grounding tab 1662 and a retaining nut 1664 or other fasteners may attach the tab 1650 to the power adapter 110.

[0083] Figure 19 and Figure 20 An example is shown of a surface in a slot of a plug according to an embodiment of the invention for holding a feature structure. Figure 19 In the diagram, the head 1652 is shown entering the slot 1630 as the user attaches the plug 1600 to the power adapter 110. The slot 1630 may include a recess 1632, a protrusion 1636, and a retaining area 1634 in the inner housing 1620.

[0084] A minimum amount of force may be required to move the tab 1650 through the recess 1632 until it reaches the protrusion 1636. A higher amount of force may be required upon reaching the protrusion 1636. Once the head 1652 of the tab 1650 reaches the holding region 1634 in the slot 1630, the force required for insertion can be reduced again. The force required for withdrawal can be higher as the head 1652 moves out of the holding region 1634 and past the protrusion 1636. The force can be reduced as the head 1652 moves through the recess 1632 and out of the slot 1630. Figure 20 In the image, the head 1652 is shown as having moved to the holding region 1634 after passing through the recess 1632 of the slot 1630 in the inner housing 1620 and over the protrusion 1636.

[0085] Figure 21 A protective structure for retaining a feature structure in a slot of a plug according to an embodiment of the invention is illustrated. In the example above, the head 1652 of the tab 1650 may be metallic. This metallic head may slide along a slot 1630 in the inner housing 1620. The slot 1630 and the inner housing 1620 may be formed of plastic or nylon type such as glass-filled nylon. This movement may cause wear along the slot 1630. Therefore, a portion of the slot 1630 may be protected by a metal element such that the metallic head 1652 of the tab 1650 encounters metal in the slot 1630. In this example, a portion 2120 of the metal element 2100 may replace or protect the retaining region 1634 in the slot 1630. Similarly, a protruding end 2130 of the metal element 2100 may replace or protect the protruding portion 1636.

[0086] Figure 22 Another retaining feature structure of a plug according to an embodiment of the invention is illustrated. In this example, the tab 2250 may include a head 2252, a plunger 2258, and a shaft 2254. A spring 2256 may be positioned between the shaft 2254 and the plunger 2258. The head 2252 may be attached to the plunger 2258, for example, using a screw or other fastener 2253. The tab 2250 is shown seated in a retaining region 1634 within an inner housing 1620.

[0087] The components of these power adapters and plugs can be formed from a variety of materials. For example, tabs, springs, and their components, as well as other metal parts of the power adapter, can be formed by stretching, machining, stamping, forging, metal injection molding, machining, micromachining, 3D printing, or other manufacturing processes. These metal parts can be formed from stainless steel, steel, copper, copper-titanium, phosphor bronze, or other materials or combinations thereof. These metal parts can be plated or coated with one or more layers of nickel, palladium, palladium-nickel, gold, or other materials or combinations thereof.

[0088] Non-metallic parts, such as housings, shells and their components, and other non-metallic parts, may be formed using injection molding or other molding, 3D printing, machining or other manufacturing processes. Non-metallic parts may be formed from silicon or silicone resin, rubber, hard rubber, plastics, nylon, glass-filled nylon, elastomers, liquid crystal polymers (LCPs), ceramics, polycarbonate or other non-metallic materials or combinations of materials.

[0089] As is widely recognized, the use of personally identifiable information should comply with privacy policies and practices that are generally accepted to meet or exceed industry or governmental requirements for protecting user privacy. Specifically, personally identifiable information data should be managed and processed to minimize the risk of unintentional or unauthorized access or use, and the nature of authorized use should be clearly explained to users.

[0090] The above description of embodiments of the invention has been presented for purposes of illustration and description. It is not intended to be exhaustive, nor is it intended to limit the invention to the precise forms described, and many modifications and variations are possible in accordance with the teachings above. These embodiments have been chosen and described to fully illustrate the principles of the invention and its practical application, thereby enabling others skilled in the art to fully utilize the invention in various embodiments and with various modifications suitable for the particular intended use. Therefore, it should be understood that the invention is intended to cover all modifications and equivalents within the scope of the following claims.

Claims

1. A power adapter system, comprising: Power adapter; and A locking plug, wherein the locking plug includes a locking mechanism for locking the locking plug to the power adapter.

2. The power adapter system of claim 1, wherein the locking mechanism is unlockable to remove the locking plug from the power adapter.

3. The power adapter system of claim 2, wherein the locking plug can be reattached to the power adapter after removal.

4. The power adapter system of claim 3, wherein the locking mechanism is unlocked using a tool.

5. The power adapter system of claim 4, wherein the tool is used to move a portion of the locking mechanism.

6. The power adapter system of claim 5, wherein the locking mechanism comprises a spring engaging a tab on the power adapter.

7. The power adapter system of claim 5, wherein the locking mechanism comprises a magnet.

8. A power adapter system, comprising: A power adapter, the power adapter comprising: shell; and A tab extending from the housing, the tab including a head and a shaft; and A plug, the plug comprising: Housing, the housing having a slot for receiving the head of the tab of the power adapter and the shaft; and A spring assembly positioned in the slot, wherein the spring assembly includes: A first spring having a first arm and a second arm, the first arm having a first protrusion and the second arm having a second protrusion, wherein the first protrusion and the second protrusion form a retaining region, wherein when the power adapter and the plug are engaged, the tab of the power adapter is retained in the retaining region, and wherein the first protrusion is a widened and reinforced portion of the first arm and the second protrusion is a widened and reinforced portion of the second arm.

9. The power adapter system of claim 8, wherein the first spring further includes a connecting portion for connecting the first arm to the second arm.

10. The power adapter system of claim 9, further comprising an inclined second spring attached to a first end of the first arm of the first spring, the second spring extending toward the holding region and away from the first spring.

11. The power adapter system of claim 10, further comprising an inclined third spring attached to a first end of the second arm of the first spring, the third spring extending toward the holding region and away from the first spring.

12. The power adapter system of claim 11, wherein the second spring includes a first contact surface and the third spring includes a second contact surface, wherein when the power adapter and the plug are engaged, the first contact surface and the second contact surface engage the bottom of the head of the tab of the power adapter.

13. The power adapter system of claim 11, wherein the first spring, the second spring, and the third spring are formed as separate components.

14. The power adapter system of claim 11, wherein the first spring, the second spring, and the third spring are formed as a single integral piece.

15. A power adapter system, comprising: A power adapter, the power adapter comprising: case; A tab extending from the housing, the tab including a head and a shaft, the shaft being secured to the housing, wherein the shaft includes: A plunger fixed to the head, wherein the plunger and the head are movable relative to the shaft; and The spring between the shaft and the plunger; and A plug, the plug comprising: A housing having a head for receiving the tab of the power adapter and a slot for receiving the shaft.

16. The power adapter system of claim 15, wherein the spring is positioned to provide a force acting to push the plunger and the head toward the power adapter.

17. The power adapter system of claim 16, wherein the spring is positioned around the plunger and within the shaft.

18. The power adapter system of claim 17, wherein the shaft and the head are metal.

19. The power adapter system of claim 18, wherein the slot includes a recessed portion.

20. The power adapter system of claim 19, further comprising a metal spacer positioned in the recessed portion of the slot in the plug.

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