A charging dock and smart glasses charging system

Abstract

This application provides a charging dock and a smart glasses charging system, relating to the field of smart glasses charging technology. It enables smart glasses to support Qi protocol wireless charging, facilitating the standardization of wireless charging protocols for portable electronic devices and reducing the cost of smart glasses. The charging dock includes a base, a first receiving slot, a second receiving slot, a first power supply coil, and a second power supply coil. The first and second receiving slots are disposed on the base. The first receiving slot accommodates the first temple of the smart glasses in an open state, and the second receiving slot accommodates the second temple of the smart glasses in an open state. A first receiving coil is disposed within the first temple, and a second receiving coil is disposed within the second temple. The first and second power supply coils are disposed within the base, with the first power supply coil opposite to the first receiving slot and the second power supply coil opposite to the second receiving slot. The charging dock provided by this application is used to charge smart glasses.

Description

Technical Field

[0001] This application relates to the field of smart glasses charging technology, and more particularly to a charging stand and a smart glasses charging system. Background Technology

[0002] Currently, smart glasses, as a type of portable electronic device, integrate functions beyond regular prescription glasses / sunglasses, such as connecting to mobile phones via Bluetooth, listening to music, and answering calls. Some smart glasses also support wireless charging. However, current technology only supports wireless charging via Near Field Communication (NFC) and not Qi. Other portable electronic devices, such as smartphones, smart earphone charging cases, and smartwatches, all support Qi wireless charging. Therefore, the wireless charging protocols in the portable electronic device market are inconsistent, making unified management difficult. Furthermore, charging chips supporting NFC are often more expensive than those supporting Qi, hindering cost reduction for smart glasses. Summary of the Invention

[0003] Embodiments of this application provide a charging dock and a smart glasses charging system that enables smart glasses to support Qi protocol wireless charging, thereby facilitating the standardization of wireless charging protocols for portable electronic devices and reducing the cost of smart glasses.

[0004] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0005] In a first aspect, some embodiments of this application provide a charging stand, which includes a base body, a first receiving groove, a second receiving groove, a first power supply coil, and a second power supply coil. The first and second receiving grooves are disposed on the base body. The first receiving groove is used to accommodate the first temple of a smart glasses in an open state, and the second receiving groove is used to accommodate the second temple of the smart glasses in an open state. A first receiving coil is disposed in the first temple, and a second receiving coil is disposed in the second temple. The first and second power supply coils are disposed in the base body. The first power supply coil is disposed opposite to the first receiving groove, and the second power supply coil is disposed opposite to the second receiving groove, such that the first power supply coil is disposed opposite to the first receiving coil disposed in the first receiving groove, and the second power supply coil is disposed opposite to the second receiving coil disposed in the second receiving groove.

[0006] In the charging dock provided in this application embodiment, the first and second temples of the smart glasses in the open state are respectively accommodated by the first and second receiving slots. This restricts the relative positions between the first receiving coil and the second receiving coil in the first temple and the first and second sending coils in the charging dock, respectively. This allows the first and second receiving coils to be matched with the first and second sending coils at positions with a larger coupling coefficient, thereby improving the coupling coefficient and enabling the smart glasses to support Qi protocol wireless charging. This facilitates the unification of wireless charging protocols for portable electronic devices. At the same time, the charging chip in the charging dock and the receiving chip in the temple can be selected to support the Qi protocol, thereby reducing the cost of the smart glasses and the charging dock.

[0007] In one possible implementation of the first aspect, both the first and second receiving slots are straight, elongated slots; both the first and second power supply coils are cylindrical coils, with the axial direction of the first power supply coil parallel to the length direction of the first receiving slot, and the axial direction of the second power supply coil parallel to the length direction of the second receiving slot. In this way, the first and second temples can extend radially into and be received in the first and second receiving slots, respectively. During the extension into the first and second receiving slots, the movement distance of the first and second temples is relatively short, facilitating the charging operation.

[0008] In one possible implementation of the first aspect, the first receiving slot and the second receiving slot are arranged in parallel. Thus, the first receiving slot and the second receiving slot are capable of accommodating the two temples of the smart glasses when they are in the open state.

[0009] In one possible implementation of the first aspect, the first receiving groove is open at both ends along the length of the first receiving groove, and the second receiving groove is open at both ends along the length of the second receiving groove. This allows the first and second receiving grooves to accommodate sections of the first and second temples respectively, which helps to reduce the width of the charging base along the length of the first or second receiving groove.

[0010] In one possible implementation of the first aspect, the region of the orthographic projection of the first power supply coil onto the bottom wall of the first receiving groove is located within the bottom wall of the first receiving groove; the region of the orthographic projection of the second power supply coil onto the bottom wall of the second receiving groove is located within the bottom wall of the second receiving groove. This results in a closer distance between the first power supply coil and the space within the first receiving groove, and between the second power supply coil and the space within the second receiving groove, which is beneficial for improving the coupling coefficient and charging efficiency when charging smart glasses.

[0011] In one possible implementation of the first aspect, the base is adjustable in terms of the distance between the first and second receiving slots. This allows the charging base to be used with different smart glasses for charging.

[0012] In one possible implementation of the first aspect, the base includes a first end and a second end, a first receiving groove is disposed at the first end of the base, and a second receiving groove is disposed at the second end of the base, with the distance between the first end and the second end of the base being variable. That is, the base is a telescopic structure extending from the first end to the second end. Thus, by changing the distance between the first end and the second end of the base, the distance between the first and second receiving grooves can be adjusted. Furthermore, when the charging base is idle, the distance between the first end and the second end of the base can be minimized to facilitate carrying the charging base.

[0013] In one possible implementation of the first aspect, the base includes a first sleeve, a second sleeve, and a third sleeve, the third sleeve having a first end and a second end; the first sleeve is sleeved with the first end of the third sleeve, and the second sleeve is sleeved with the second end of the third sleeve, the first sleeve and the second sleeve being slidable along the axial direction of the third sleeve; a first receiving groove is disposed on the first sleeve, a first power supply coil is disposed inside the first sleeve, a second receiving groove is disposed on the second sleeve, and a second power supply coil is disposed inside the second sleeve. This base has a simple structure and hides and protects the first and second power supply coils within the first and second sleeves, ensuring the charging base's clean appearance.

[0014] In one possible implementation of the first aspect, the charging dock further includes a third power supply coil disposed within the dock body and located between the first and second power supply coils, and the third power supply coil is a planar coil. This third power supply coil expands the application range of the charging dock.

[0015] In one possible implementation of the first aspect, the third power supply coil is disposed within the third sleeve. This allows the third power supply coil to be hidden and protected by the third sleeve, extending the lifespan of the charging base and ensuring its clean appearance.

[0016] In one possible implementation of the first aspect, the third power supply coil is a standard wireless charging MP-A2 model coil. The MP-A2 model coil is compatible with charging devices such as smartphones, smartwatches, and smart earphone charging cases, and has a high coupling coefficient, which improves the charging efficiency of the third power supply coil to smartphones, smartwatches, and smart earphone charging cases.

[0017] In one possible implementation of the first aspect, the charging dock further includes a first charging chip supporting the Qi protocol and a second charging chip supporting the Qi protocol, with a first power supply coil electrically connected to the first charging chip and a second power supply coil electrically connected to the second charging chip. Charging chips supporting the Qi protocol are inexpensive, which helps reduce the cost of the charging dock.

[0018] In one possible implementation of the first aspect, the base includes a first guide rail, a second guide rail, a lead screw, a fixed seat, a first sliding seat, and a second sliding seat. The first guide rail, the second guide rail, and the lead screw are arranged in parallel, and the fixed seat is connected to the first guide rail, the second guide rail, and the lead screw. The first guide rail, the second guide rail, and the lead screw can rotate about their own axes relative to the fixed seat, but cannot move axially relative to the fixed seat. The first sliding seat and the second sliding seat are slidably connected to the first guide rail and the second guide rail. The lead screw is a bidirectional lead screw, and there is a threaded fit between the first sliding seat and the lead screw, and between the second sliding seat and the lead screw. A first receiving groove is disposed on the first sliding seat, and a first power supply coil is disposed within the first sliding seat. A second receiving groove is disposed on the second sliding seat, and a second power supply coil is disposed within the second sliding seat. When the lead screw rotates, it can drive the first sliding seat and the second sliding seat to move along the first guide rail in a direction that approaches or moves away from each other, and drive the first receiving groove and the second receiving groove to move in a direction that approaches or moves away from each other, so as to adjust the distance between the first receiving groove and the second receiving groove. This structure is simple and has high adjustment accuracy.

[0019] Secondly, some embodiments of this application provide a smart glasses charging system, which includes smart glasses and a charging base; the smart glasses include a first temple and a second temple, the first temple having a first receiving coil and the second temple having a second receiving coil; the charging base includes a base body, a first receiving slot, a second receiving slot, a first power supply coil, and a second power supply coil, the first receiving slot and the second receiving slot being disposed on the base body, the first receiving slot being used to receive the first temple of the smart glasses in an open state; the second receiving slot being used to receive the second temple of the smart glasses in an open state; the first power supply coil and the second power supply coil being disposed in the base body, the first power supply coil being disposed opposite to the first receiving slot, and the second power supply coil being disposed opposite to the second receiving slot, such that the first power supply coil is disposed opposite to the first receiving coil disposed in the first receiving slot, and the second power supply coil is disposed opposite to the second receiving coil disposed in the second receiving slot.

[0020] In the smart glasses charging system provided in this application embodiment, the first and second receiving slots of the charging base respectively accommodate the first and second temples of the smart glasses in the open state. This restricts the relative positions between the first receiving coil and the second receiving coil in the first temple and the first and second sending coils in the charging base, respectively. This allows the first and second receiving coils to be matched with the first and second sending coils at positions with a larger coupling coefficient, thereby improving the coupling coefficient. This enables the smart glasses and charging base to support Qi protocol wireless charging, facilitating the unification of wireless charging protocols for portable electronic devices. At the same time, the charging chip in the charging base and the receiving chip in the temple can be selected to support the Qi protocol, thereby reducing the cost of the smart glasses and charging base.

[0021] In one possible implementation of the second aspect, both the first and second receiving slots are straight, elongated slots, and both the first and second power supply coils are cylindrical coils. The axial direction of the first power supply coil is parallel to the length direction of the first receiving slot, and the axial direction of the second power supply coil is parallel to the length direction of the second receiving slot. In this way, the first and second temples can extend radially into and be received in the first and second receiving slots, respectively. During the process of extending into the first and second receiving slots, the moving distance of the first and second temples is relatively short, facilitating the charging operation.

[0022] In one possible implementation of the second aspect, the first receiving slot and the second receiving slot are arranged in parallel. In this way, the first receiving slot and the second receiving slot can accommodate the two temples of the smart glasses when they are in the open state.

[0023] In one possible implementation of the second aspect, the first receiving groove is open at both ends along its length, and the second receiving groove is open at both ends along its length. This allows the first and second receiving grooves to accommodate sections of the first and second temples respectively, which helps to reduce the width of the charging base along the length of either the first or second receiving groove.

[0024] In one possible implementation of the second aspect, the region of the orthographic projection of the first power supply coil onto the bottom wall of the first receiving groove is located within the bottom wall of the first receiving groove; the region of the orthographic projection of the second power supply coil onto the bottom wall of the second receiving groove is located within the bottom wall of the second receiving groove. This results in a closer distance between the first power supply coil and the space within the first receiving groove, and between the second power supply coil and the space within the second receiving groove, which is beneficial for improving the coupling coefficient and charging efficiency when charging smart glasses.

[0025] In one possible implementation of the second aspect, both the first and second receiving coils are cylindrical coils. The axial direction of the first receiving coil is aligned with the length direction of the first temple, and the axial direction of the second receiving coil is aligned with the length direction of the second temple. The length of the first receiving coil is equal to the length of the first transmitting coil, and the length of the second receiving coil is equal to the length of the second transmitting coil. The first receiving coil is positioned directly opposite the first transmitting coil, and the second receiving coil is positioned directly opposite the second transmitting coil. Thus, the two ends of the first receiving coil are respectively close to the two ends of the first transmitting coil, and the two ends of the second receiving coil are respectively close to the two ends of the second transmitting coil. When alternating current is applied to the first and second power supply coils, more magnetic lines of force in the alternating magnetic field generated by the first power supply coil pass through the first power receiving coil, and more magnetic lines of force in the alternating magnetic field generated by the second power supply coil pass through the second power receiving coil. This increases the coupling coefficient between the first and second power supply coils, as well as between the second power supply coil and the second power receiving coil, thereby improving charging efficiency. This enables the charging dock and smart glasses provided in this application embodiment to support Qi protocol wireless charging, which is beneficial for unifying wireless charging protocols for portable electronic devices and can also reduce the cost of smart glasses.

[0026] In one possible implementation of the second aspect, the base is adjustable in terms of the distance between the first and second receiving slots. This allows the charging base to be used with different smart glasses for charging.

[0027] In one possible implementation of the second aspect, the base includes a first end and a second end. A first receiving groove is disposed at the first end of the base, and a second receiving groove is disposed at the second end of the base. The distance between the first end and the second end of the base is variable. That is, the base is a telescopic structure extending from the first end to the second end. Thus, by changing the distance between the first end and the second end of the base, the distance between the first and second receiving grooves can be adjusted. Furthermore, when the charging base is idle, the distance between the first end and the second end of the base can be minimized to facilitate carrying the charging base.

[0028] In one possible implementation of the second aspect, the base includes a first sleeve, a second sleeve, and a third sleeve, the third sleeve having a first end and a second end; the first sleeve is sleeved with the first end of the third sleeve, and the second sleeve is sleeved with the second end of the third sleeve, the first sleeve and the second sleeve being slidable along the axial direction of the third sleeve; a first receiving groove is disposed on the first sleeve, a first power supply coil is disposed inside the first sleeve, a second receiving groove is disposed on the second sleeve, and a second power supply coil is disposed inside the second sleeve. This base has a simple structure, and by hiding and protecting the first and second power supply coils within the first and second sleeves, the appearance of the charging base can be kept clean.

[0029] In one possible implementation of the second aspect, the charging dock further includes a third power supply coil disposed within the dock body and located between the first and second power supply coils, and the third power supply coil is a planar coil. This third power supply coil expands the application range of the charging dock.

[0030] In one possible implementation of the second aspect, the third power supply coil is disposed inside the third sleeve. This allows the third power supply coil to be hidden and protected by the third sleeve, extending the lifespan of the charging base and ensuring its clean appearance.

[0031] In one possible implementation of the second aspect, the third power supply coil is a standard wireless charging MP-A2 model coil. The MP-A2 model coil is compatible with charging devices such as smartphones, smartwatches, and smart earphone charging cases, and has a high coupling coefficient, which can improve the charging efficiency of the third power supply coil to smartphones, smartwatches, and smart earphone charging cases.

[0032] In one possible implementation of the second aspect, the charging dock further includes a first charging chip supporting the Qi protocol and a second charging chip supporting the Qi protocol, with a first power supply coil electrically connected to the first charging chip and a second power supply coil electrically connected to the second charging chip; the first temple also includes a first power receiving chip supporting the Qi protocol, electrically connected to the first power receiving coil; the second temple also includes a second power receiving chip supporting the Qi protocol, electrically connected to the second power receiving coil. The charging and power receiving chips supporting the Qi protocol are inexpensive, which helps reduce the cost of the smart glasses charging system.

[0033] In one possible implementation of the second aspect, the charging dock is provided with a first limiting structure, and the smart glasses are provided with a second limiting structure. The second limiting structure cooperates with the first limiting structure to limit the first receiving coil to a position opposite to the first supplying coil, and simultaneously limits the second receiving coil to a position opposite to the second supplying coil. This facilitates charging matching operations between the first receiving coil and the first supplying coil, and between the second receiving coil and the second supplying coil.

[0034] In one possible implementation of the second aspect, the first limiting structure and the second limiting structure can be marking lines respectively set in the first receiving groove and on the first temple, or marking lines respectively set in the second receiving groove and on the second temple. The user can visually align the marking lines in the first receiving groove and on the first temple, or align the marking lines in the second receiving groove and on the second temple, to limit the first receiving coil to a position opposite to the first supplying coil, and at the same time limit the second receiving coil to a position opposite to the second supplying coil of the charging base.

[0035] In one possible implementation of the second aspect, both the first and second limiting structures are magnetic components, with the first limiting structure used to engage with the second limiting structure. This first and second limiting structure has a simple structure and is easy to operate. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of a smart glasses according to this application during charging;

[0037] Figure 2 A perspective view of a charging dock provided for some embodiments of this application;

[0038] Figure 3 for Figure 2 The front view of the charging dock is shown.

[0039] Figure 4 This is a schematic diagram of the structure of a smart glasses according to this application when it is in the open state;

[0040] Figure 5 for Figure 4 The first and second temples of the smart glasses shown are respectively housed in Figure 2 Top view of the charging dock when it is inside the first and second receiving slots.

[0041] Figure 6 for Figure 4 The first and second temples of the smart glasses shown are respectively housed in Figure 2 Front view of the charging dock when it is inside the first and second receiving slots;

[0042] Figure 7 for Figure 5 and Figure 6 The diagram shows the orientation relationship between the first receiving coil inside the temple and the first supplying coil inside the charging base.

[0043] Figure 8 for Figure 5 and Figure 6 The diagram shows the orientation relationship between the second receiving coil inside the temple and the second supplying coil inside the charging base.

[0044] Figure 9 for Figure 2 and Figure 3 A schematic diagram of the cross-sectional structure of the charging dock shown;

[0045] Figure 10 for Figure 9 The diagram shows a cross-sectional structure of the charging dock when the body is in a retracted state.

[0046] Figure 11 for Figure 2A schematic diagram of the magnetic fields of the first, second, and third power supply coils in the charging dock shown.

[0047] Figure 12 for Figure 2 The charging dock shown is in contact with Figure 4 The diagram shows the internal circuitry of the first and second temples of the smart glasses during charging and pairing with other portable electronic devices.

[0048] Figure 13 This application provides structural schematic diagrams of charging docks according to further embodiments;

[0049] Figure 14 This is a schematic diagram of the structure of a smart glasses charging system provided in some embodiments of this application.

[0050] Figure label:

[0051] 01-Smart Glasses; 02-Receiving Coil; 03-Sending Coil; 04-Inner Core; 10-Charging Base; 111-First Receiving Slot; 112-First Sending Coil; 121-Second Receiving Slot; 122-Second Sending Coil; 13-Base; 131-First Sleeve; 132-Second Sleeve; 133-Third Sleeve; 131a-First Stop; 132a-Third Stop; 133a-Second Stop; 133b-Fourth Stop; 14-Third Sending Coil; 15-Circuit Board; 151-USB Interface; 152-OVP Chip; 153a-First Voltage Regulator Chip; 153b-Second Voltage Regulator Chip; 155-Third voltage regulating chip; 157-Fourth voltage regulating chip; 154a-First charging chip; 154b-Second charging chip; 156-Third charging chip; 158-Switch; 131A-First guide rail; 132A-Second guide rail; 133A-Lead screw; 134-Fixed base; 135-First sliding base; 136-Second sliding base; 20-Smart glasses; 21-Lens; 22-First temple; 221-First power receiving coil; 23-Second temple; 231-Second power receiving coil; 24-Frame; 30-Other portable electronic devices; 40-First limiting structure; 50-Second limiting structure. Detailed Implementation

[0052] In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of that feature.

[0053] In the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0054] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0055] Currently, portable electronic devices typically use electromagnetic induction wireless charging technology. This involves installing a power supply coil inside the charging base, through which an alternating current is applied to generate an alternating magnetic field. Simultaneously, a receiving coil is installed inside the portable electronic device. When the device approaches the charging base, the magnetic lines of force from the alternating magnetic field generated by the power supply coil pass through the receiving coil, inducing a current within it. This transfers electrical energy from the charging base to the portable electronic device, completing the charging process.

[0056] Smart glasses, as a type of portable electronic device, also utilize electromagnetic induction wireless charging technology for wireless charging. Please refer to [link / reference]. Figure 1 , Figure 1 This is a schematic diagram of the structure of a smart glasses 01 according to this application during charging. In this embodiment, there are two receiving coils 02, which are respectively installed in the two temples of the smart glasses 01, and the axial direction of the receiving coil 02 is approximately aligned with the length direction of the temple where the receiving coil 02 is located. There are also two supply coils 03, which are respectively wound around two rectangular flat inner cores 04 inside the charging base (not shown in the figure). Alternating current is connected to the two supply coils 03 to generate two alternating magnetic fields, and the magnetic field lines are as follows: Figure 1 As shown by the dashed line. When the two receiving coils 02 are brought close to the two sending coils 03, and the axes of the two receiving coils 02 are parallel to the axes of the two sending coils 03, the magnetic field lines of the alternating magnetic field generated by the two sending coils 03 pass through the two receiving coils 02, thereby inducing a current in the two receiving coils 02. This transfers the electrical energy from the charging base to the smart glasses, thus completing the charging process of the smart glasses.

[0057] In the above embodiments, the spacing between the two receiving coils 02 may differ for different smart glasses. To enable the charging base to match different smart glasses, the area of ​​the winding region of the sending coil 03 on the largest surface (i.e., surface a) of the inner core 04 can be designed to be larger than the orthogonal projection area of ​​the receiving coil 02 on the largest surface of the inner core 04 during charging. This allows the smart glasses to have a certain tolerance in two mutually perpendicular directions (direction X0 and direction Y0) parallel to the largest surface of the inner core 04, thereby enabling the charging base to match different smart glasses 01. However, during the charging process, the ratio of the magnetic flux passing through the receiving coil 02 to the magnetic flux generated in the sending coil 03 is relatively small. That is, the coupling coefficient between the sending coil 03 and the receiving coil 02 is relatively small (usually below 0.3), resulting in low charging efficiency. Based on this, since the Qi-compliant power receiving chip in the device being charged can only operate when the charging voltage reaches a certain value, the charging voltage entering the smart glasses cannot reach the operating voltage of the Qi-compliant power receiving chip within the smart glasses. Therefore, the charging process for the smart glasses cannot be completed, and the smart glasses cannot support Qi-compliant wireless charging. Qi is a wireless charging standard launched by the Wireless Power Consortium (WPC), the world's first organization to promote the standardization of wireless charging technology. It possesses the two major characteristics of convenience and universality. Generally, the Qi protocol requires the coupling coefficient between the power supply coil and the power receiving coil to be greater than 0.3.

[0058] Based on the above analysis, in order for smart glasses to support Qi protocol wireless charging, it is necessary to increase the coupling coefficient between the power supply coil in the charging base and the power receiving coil in the smart glasses. Based on this, this application provides a charging base for charging smart glasses.

[0059] Please see Figure 2 and Figure 3 , Figure 2 This is a perspective view of the charging dock 10 provided in some embodiments of this application. Figure 3 for Figure 2 The charging stand 10 is shown in the front view. The charging stand 10 includes a stand body 13. In this embodiment, the stand body 13 is approximately rectangular flat plate. It is understood that the stand body 13 can also be circular flat plate, polygonal flat plate, block structure, etc., and no specific limitation is made here.

[0060] The charging dock 10 also includes a first receiving groove 111 and a second receiving groove 121, which are disposed on the dock body 13. (See also...) Figure 4 , Figure 4This is a schematic diagram of the structure of a smart glasses 20 according to this application when it is in the open state. When the smart glasses 20 is in the open state, the two lenses 21 of the smart glasses 20 are arranged side by side, and the length direction of the two temples (the first temple 22 and the second temple 23, respectively) is perpendicular or approximately perpendicular to the arrangement direction of the two lenses 21. Please refer to the attached diagram. Figures 2-4 The first receiving slot 111 and the second receiving slot 121 are respectively used to receive the first temple 22 and the second temple 23 of the smart glasses 20 in the open state. In some embodiments, the first receiving slot 111 is used to receive the first temple 22 and the second receiving slot 121 is used to receive the second temple 23. In other embodiments, the first receiving slot 111 is used to receive the second temple 23 and the second receiving slot 121 is used to receive the first temple 22. The following description only uses the example of the first receiving slot 111 receiving the first temple 22 and the second receiving slot 121 receiving the second temple 23, which should not be considered as a special limitation of this application.

[0061] In some embodiments, please refer to Figures 2-4 Both the first receiving groove 111 and the second receiving groove 121 are elongated grooves. The first receiving groove 111 and the second receiving groove 121 can be straight elongated grooves or curved elongated grooves; no specific limitation is made here. In some embodiments, both the first receiving groove 111 and the second receiving groove 121 are straight elongated grooves, and in some embodiments, the first receiving groove 111 and the second receiving groove 121 are arranged parallel to each other. However, the parallel arrangement of the first receiving groove 111 and the second receiving groove 121 does not mean that the first receiving groove 111 and the second receiving groove 121 must be absolutely parallel. When the included angle between the first receiving groove 111 and the second receiving groove 121 is less than or equal to a first preset angle, the first receiving groove 111 and the second receiving groove 121 can be considered to be parallel. The first preset angle can be 10°. When both the first receiving groove 111 and the second receiving groove 121 are elongated grooves, the first temple 22 and the second temple 23 can extend radially into and be received in the first receiving groove 111 and the second receiving groove 121, respectively. During the process of extending into the first receiving groove 111 and the second receiving groove 121, the moving distance of the first temple 22 and the second temple 23 is relatively short, which facilitates the charging operation. It is understood that the first receiving groove 111 and the second receiving groove 121 can also be deep grooves, with the depth direction of the first receiving groove 111 parallel to the depth direction of the second receiving groove 121. In this case, the first temple 22 and the second temple 23 are respectively inserted into the first receiving groove 111 and the second receiving groove 121 along their own axial direction. The following description only takes the case where both the first receiving groove 111 and the second receiving groove 121 are straight elongated grooves, and the first receiving groove 111 and the second receiving groove 121 are arranged in parallel as an example. This should not be considered as a special limitation of this application.

[0062] In some embodiments, the first receiving groove 111 is open at both ends along its length, and the second receiving groove 121 is open at both ends along its length. This allows the first receiving groove 111 and the second receiving groove 121 to accommodate sections of the first temple 22 and the second temple 23, respectively, which helps to reduce the width W of the charging base 10 along the length (i.e., direction X) of the first receiving groove 111 or the second receiving groove 121.

[0063] To ensure that the first receiving groove 111 can accommodate the first temple 22 and the second receiving groove 121 can accommodate the second temple 23, please refer to the following: Figures 2-4 The width w1 of the first receiving groove 111 should be equal to or slightly greater than the width w3 of the first temple 22 of the smart glasses in the open state along the direction of the arrangement of the two lenses 21. The width w2 of the second receiving groove 121 should be equal to or slightly greater than the width w4 of the second temple 23 of the smart glasses in the open state along the direction of the arrangement of the two lenses 21. Since the cross-sectional dimensions of the temples are relatively small for different smart glasses, the first temple 22 and the second temple 23 of different smart glasses can be accommodated by the first receiving groove 111 and the second receiving groove 121 with fixed widths, respectively.

[0064] Please continue reading. Figure 2 and Figure 3 The charging base 10 also includes a first power supply coil 112. The first power supply coil 112 is disposed within the base body 13, and is positioned opposite to the first receiving groove 111, with the relative positions of the first power supply coil 112 and the first receiving groove 111 fixed. Specifically, the first power supply coil 112 can be fixed to the bottom wall or side wall of the first receiving groove 111, or it can be fixed to other structures fixed to the bottom wall or side wall of the first receiving groove 111; no specific limitation is made here. The first power supply coil 112 can be located on the side of the bottom wall of the first receiving groove 111 away from the groove space, or it can be located on the side wall of the first receiving groove 111 away from the groove space. In some embodiments, the first power supply coil 112 is located on the side of the bottom wall of the first receiving groove 111 away from the groove space of the first receiving groove 111, and the area of ​​the orthographic projection of the first power supply coil 112 on the bottom wall of the first receiving groove 111 is located within the bottom wall of the first receiving groove 111. In this way, the distance between the first power supply coil 112 and the groove space of the first receiving groove 111 is relatively short, which is beneficial to improving the coupling coefficient and charging efficiency between the first power supply coil 112 and the first temple 22 when charging the first temple 22 of the smart glasses.

[0065] The charging base 10 also includes a second power supply coil 122. The second power supply coil 122 is disposed within the base body 13, and is positioned opposite to the second receiving groove 121, with their relative positions fixed. Specifically, the second power supply coil 122 can be fixed to the bottom wall or side wall of the second receiving groove 121, or to other structures fixed to the bottom wall or side wall of the second receiving groove 121; no specific limitation is made here. The second power supply coil 122 can be located on the side of the bottom wall of the second receiving groove 121 away from the groove's internal space, or on the side wall of the second receiving groove 121 away from the groove's internal space. In some embodiments, the second power supply coil 122 is located on the side of the bottom wall of the second receiving groove 121 away from the groove space of the second receiving groove 121, and the orthographic projection of the second power supply coil 122 on the bottom wall of the second receiving groove 121 is located on the bottom wall of the second receiving groove 121. In this way, the distance between the second power supply coil 122 and the groove space of the second receiving groove 121 is relatively short, which is beneficial to improving the coupling coefficient and charging efficiency between the second power supply coil 122 and the second temple 23 when charging the second temple 23 of the smart glasses.

[0066] Please see Figure 4 The first temple 22 contains a first power receiving coil 221, and the second temple 23 contains a second power receiving coil 231. Please refer to both. Figures 2-4 When the first temple 22 and the second temple 23 of the smart glasses 20 are respectively accommodated in the first receiving groove 111 and the second receiving groove 121, the first receiving coil 221 of the first temple 22 and the second receiving coil 231 of the second temple 23 can be opposite to the first supply coil 112 and the second supply coil 122, respectively. The structural forms of the first receiving coil 221, the second receiving coil 231, the first supply coil 112, and the second supply coil 122 include, but are not limited to, planar coils and cylindrical coils. A planar coil refers to a coil structure formed by spirally winding the resisting wire along a plane, while a cylindrical coil refers to a coil structure formed by spirally winding the resisting wire along a cylindrical surface. The cross-sectional shape of the cylindrical surface includes, but is not limited to, circles, ellipses, squares, triangles, and polygons. When both coils are planar coils, "opposite" means that the planes in which the two coils are located are parallel or approximately parallel, and the orthographic projection area of ​​one coil on the plane in which the other coil is located overlaps with the area occupied by the other coil on its own plane. When both coils are cylindrical coils, "opposite" means that the axes of the two coils are parallel or approximately parallel, and the orthographic projection area of ​​one coil on the central axis of the other coil overlaps with the orthographic projection area of ​​the other coil on its own central axis.

[0067] In this embodiment, the first receiving groove 111 and the second receiving groove 121 can limit the relative positions between the first receiving coil 221 and the first sending coil 112, and between the second receiving coil 231 and the second sending coil 122, so that the first receiving coil 221 and the first sending coil 112, and the second receiving coil 231 and the second sending coil 122 can be matched at positions with a large coupling coefficient.

[0068] In some embodiments, please refer to Figure 4 Both the first receiving coil 221 and the second receiving coil 231 are cylindrical coils. The axis of the first receiving coil 221 is aligned with the length direction of the first temple 22, and the axis of the second receiving coil 231 is aligned with the length direction of the second temple 23. Here, "aligned" does not mean that the two directions must be absolutely identical, but rather that the included angle between the two directions is less than or equal to a second preset angle. This second preset angle can be 10°. The cylindrical coils occupy less space, making them convenient for installation in temples with limited internal space.

[0069] Based on the above embodiments, please refer to Figure 2 and Figure 3 The first power supply coil 112 and the second power supply coil 122 are also cylindrical coils, and are not specifically limited here. The axial direction of the first power supply coil 112 is parallel to the length direction of the first receiving groove 111. The axial direction of the second power supply coil 122 is parallel to the length direction of the second receiving groove 121. Here, "parallel" does not mean that the two directions must be absolutely parallel, but rather that the included angle between the two directions is less than or equal to a third preset angle. This third preset angle can be 10°. Thus, the first power supply coil 112 can be opposite to the first receiving coil 221, and the second power supply coil 122 can be opposite to the second receiving coil 231.

[0070] When the first temple 22 is accommodated in the first receiving groove 111 and the second temple 23 is accommodated in the second receiving groove 121, the length direction of the first temple 22 is consistent with the length direction of the first receiving groove 111, the axis of the first power supply coil 112 is parallel to the axis of the first power receiving coil 221, the length direction of the second temple 23 is consistent with the length direction of the second receiving groove 121, and the axis of the second power supply coil 122 is parallel to the axis of the second power receiving coil 231. Here, "consistent" does not mean that the two directions must be absolutely consistent, but rather that the angle between the two directions is less than or equal to a fourth preset angle. This fourth preset angle can be 30°. Similarly, "parallel" does not mean that the two directions must be absolutely parallel, but rather that the angle between the two directions is less than or equal to a fifth preset angle. This fifth preset angle can be 30°.

[0071] Based on the above embodiments, optionally, the length of the first power supply coil 112 in the axial direction is equal to the length of the first power receiving coil 221 in the axial direction, and the length of the second power supply coil 122 in the axial direction is equal to the length of the second power receiving coil 231 in the axial direction. Here, "equal" is not limited to absolute equality; when the absolute value of the difference between the two associated lengths is less than or equal to a first preset value, they are considered equal. This first preset value can be 1mm, 2mm, 3mm, etc., and is not specifically limited here. When the first temple 22 of the smart glasses 20 is accommodated in the first receiving groove 111 and the second temple 23 is accommodated in the second receiving groove 121, please refer to [reference needed]. Figures 5-8 , Figure 5 for Figure 4 The first temple 22 and the second temple 23 of the smart glasses 20 shown are respectively housed in Figure 2 The top view of the charging dock 10 when it is inside the first receiving groove 111 and the second receiving groove 121 is shown. Figure 6 for Figure 4 The first temple 22 and the second temple 23 of the smart glasses 20 shown are respectively housed in Figure 2 The front view of the charging dock 10 when it is inside the first receiving slot 111 and the second receiving slot 121 is shown. Figure 7 for Figure 5 and Figure 6 The diagram shows the orientation relationship between the first receiving coil 221 inside the temple and the first supplying coil 112 inside the charging base. Figure 8 for Figure 5 and Figure 6The diagram shows the orientation relationship between the second receiving coil 231 inside the temple and the second sending coil 122 inside the charging base. The first receiving coil 221 is directly opposite to the first sending coil 112, and the second receiving coil 231 is directly opposite to the second sending coil 122.

[0072] In this context, "the first receiving coil 221 is directly opposite the first sending coil 112" means that the axial direction of the first receiving coil 221 is parallel to the axial direction of the first sending coil 112, and the orthographic projection area of ​​the first receiving coil 221 on the axis of the first sending coil 112 coincides with the orthographic projection area of ​​the first sending coil 112 on the axis of the first sending coil 112. Similarly, "the second receiving coil 231 is directly opposite the second sending coil 122" means that the axial direction of the second receiving coil 231 is parallel to the axial direction of the second sending coil 122, and the orthographic projection area of ​​the second receiving coil 231 on the axis of the second sending coil 122 coincides with the orthographic projection area of ​​the second sending coil 122 on the axis of the second sending coil 122. Here, "parallel" does not mean that the two directions must be absolutely parallel, but rather that the included angle between the two directions is less than or equal to a sixth preset angle. This sixth preset angle can be 30°. Furthermore, "overlap" does not mean that the two associated orthographic projection areas are absolutely overlapping. When the distance between the two ends of one associated orthographic projection area and the corresponding ends of the other associated orthographic projection area is less than or equal to a second preset value, the two associated orthographic projection areas can be considered to overlap. The second preset value can be 1mm, 2mm, 3mm, etc., and is not specifically limited here.

[0073] In this way, the two ends of the first receiving coil 221 along its own axial direction are respectively close to the two ends of the first sending coil 112 along its own axial direction, and the two ends of the second receiving coil 231 along its own axial direction are respectively close to the two ends of the second sending coil 122 along its own axial direction. When AC power is applied to the first sending coil 112 and the second sending coil 122, more magnetic lines of force in the alternating magnetic field generated by the first sending coil 112 pass through the first receiving coil 221, and more magnetic lines of force in the alternating magnetic field generated by the second sending coil 122 pass through the second receiving coil 231. This can improve the coupling coefficient between the first sending coil 112 and the first receiving coil 221, and between the second sending coil 122 and the second receiving coil 231, thereby improving the charging efficiency. This enables the charging base and smart glasses provided in this embodiment to support Qi protocol wireless charging, which is beneficial to the unification of wireless charging protocols for portable electronic devices and can also reduce the cost of smart glasses.

[0074] Please continue reading. Figure 7 and Figure 8The first power-feeding coil 112 and the second power-feeding coil 122 have an inductance of 25 uH and a direct current resistance (DCR) of 210 mohm, and are in a square cylindrical structure with dimensions of 20 mm × 4 mm × 3 mm (length × width × height). The first power-receiving coil 221 and the second power-receiving coil 231 have an inductance of 65 uH and a DCR of 380 mohm, and are also in a square cylindrical structure with dimensions of 20 mm × 4 mm × 3 mm (length × width × height). The first power-feeding coil 112 is directly opposite the first power-receiving coil 221, and the second power-feeding coil 122 is directly opposite the second power-receiving coil 231. Simulation results show that the coupling coefficients between the first power-feeding coil 112 and the first power-receiving coil 221, and between the second power-feeding coil 122 and the second power-receiving coil 231, are 0.37. Since 0.37 > 0.3, the wireless charging requirements of the Qi protocol are met.

[0075] In this embodiment, the first power supply coil 112, the second power supply coil 122, the first power receiving coil 221, and the second power supply coil 122 are respectively wound around four inner cores c, so that the four inner cores c respectively support the first power supply coil 112, the second power supply coil 122, the first power receiving coil 221, and the second power supply coil 122. The inner core c can be an insulating core or a magnetic core, and is not specifically limited here. The magnetic core refers to a sintered magnetic metal oxide composed of various iron oxide mixtures, which can increase the magnetic flux density (i.e., magnetic flux) of the coil's magnetic circuit and reduce losses. In some embodiments, the inner core c is a ferrite core. Ferrite cores are easy to magnetize and demagnetize, thus having a faster response speed for starting and stopping charging, which is beneficial for charging control.

[0076] In order for the first temple 22 of the smart glasses 20 to be accommodated in the first receiving groove 111 and the second temple 23 to be accommodated in the second receiving groove 121, the first receiving coil 221 can be opposite to the first sending coil 112, and the second receiving coil 231 can be opposite to the second sending coil 122. Some embodiments are also described below. Figure 2 , Figure 4 and Figure 5 The charging base 10 is provided with a first limiting structure 40, and the smart glasses 20 is provided with a second limiting structure 50. The first limiting structure 40 and the second limiting structure 50 cooperate to limit the first power supply coil 112 and the first power receiving coil 221 to relative positions, and at the same time limit the second power supply coil 122 and the second power receiving coil 231 to relative positions.

[0077] In some embodiments, the first limiting structure 40 and the second limiting structure 50 are respectively marked lines disposed in the first receiving groove 111 and on the first temple 22, or respectively marked lines disposed in the second receiving groove 121 and on the second temple 23. By visually aligning the marked lines in the first receiving groove 111 and on the first temple 22, or aligning the marked lines in the second receiving groove 121 and on the second temple 23, the user can restrict the first power supply coil 112 and the first power receiving coil 221 to relative positions, and restrict the second power supply coil 122 and the second power receiving coil 231 to relative positions.

[0078] In other embodiments, the first limiting structure 40 and the second limiting structure 50 may also be magnetic components. The magnetic component is formed of a magnetic material, which is a material capable of responding to a magnetic field in some way. Magnetic materials include, but are not limited to, magnets, iron, cobalt, and nickel. At least one of the first limiting structure 40 and the second limiting structure 50 is a magnet. The first limiting structure 40 and the second limiting structure 50 are engaged to constrain the first power supply coil 112 and the first power receiving coil 221 to opposite positions, while simultaneously constraining the second power supply coil 122 and the second power receiving coil 231 to opposite positions. This first and second limiting structure has a simple structure and convenient engagement operation. Figure 2 , Figure 4 and Figure 5 An example is given where the first limiting structure 40 and the second limiting structure 50 are magnetic components. This should not be considered as a special limitation on the structural composition of the first limiting structure 40 and the second limiting structure 50.

[0079] It should be noted that, in this embodiment, the first limiting structure 40 and the second limiting structure 50 may be omitted, and the first receiving coil 221 and the second receiving coil 231 may be respectively disposed within the portion of the first temple 22 and the second temple 23 adjacent to the frame 24 (see [link]). Figure 4 The charging base 10 has a third end A and a fourth end B at its two ends along the length of the first receiving groove 111 or the second receiving groove 121, respectively. The first power supply coil 112 and the second power supply coil 122 are positioned near the third end A of the charging base 10 (see [link]). Figure 2 In this way, by accommodating the first temple 22 and the second temple 23 in the first receiving groove 111 and the second receiving groove 121 respectively, and by placing the frame 24 of the smart glasses 20 against the third end A face of the charging base 10, the first power supply coil 112 and the first power receiving coil 221 can be restricted to relative positions, and the second power supply coil 122 and the second power receiving coil 231 can be restricted to relative positions.

[0080] Please return to the reference. Figure 2 and Figure 3The base 13 is also used to adjust the distance between the first receiving slot 111 and the second receiving slot 121. In some embodiments, the base 13 is used to adjust the position of the first receiving slot 111 and / or the second receiving slot 121 along a second direction (i.e., direction Y) to change the distance between the first receiving slot 111 and the second receiving slot 121, thereby enabling the first receiving slot 111 and the second receiving slot 121 to accommodate the two temples of different smart glasses, thus allowing the charging base to be compatible with different smart glasses for charging. The second direction is perpendicular to the first direction (i.e., direction X), and direction X is the length direction of the first receiving slot 111 or the second receiving slot 121.

[0081] In the above embodiments, the structure of the base 13 can take various forms. For some embodiments, please refer to... Figure 2 and Figure 3 The base 13 includes a first end C and a second end D. A first receiving groove 111 is disposed at the first end C of the base 13, and a second receiving groove 121 is disposed at the second end D of the base 13. The distance between the first end C and the second end D of the base 13 is variable. That is, the base 13 is a telescopic device that can extend and retract from the first end C to the second end D. In this way, by extending or shortening the base 13, not only can the distance between the first receiving groove 111 and the second receiving groove 121 be adjusted, but also when the charging base 10 is in an idle state, the distance between the first end C and the second end D of the base 13 can be shortened to a minimum value to facilitate carrying the charging base.

[0082] In the above embodiments, when the seat 13 is a telescopic device, the structural form of the seat 13 can be varied. For some embodiments, please refer to [the relevant documentation]. Figure 2 and Figure 3 The base 13 includes a first sleeve 131, a second sleeve 132, and a third sleeve 133. The cross-sectional shapes of the first sleeve 131, the second sleeve 132, and the third sleeve 133 include, but are not limited to, rectangles, squares, parallelograms, polygons, etc. Figure 2 and Figure 3 The example given only shows that the cross-sectional shape of the first sleeve 131, the second sleeve 132, and the third sleeve 133 is rectangular, which should not be considered as a specific limitation on this application. The third sleeve 133 has a first end and a second end at its two axial ends. The first sleeve 131 is fitted onto the first end of the third sleeve 133. Specifically, the first sleeve 131 can be fitted onto the outside of the first end of the third sleeve 133, or it can be fitted onto the inside of the first end of the third sleeve 133. Figure 2 and Figure 3The example given is only one where the first sleeve 131 is fitted onto the outside of the first end of the third sleeve 133, and this should not be considered a specific limitation of this application. The second sleeve 132 is fitted onto the second end of the third sleeve 133. Specifically, the second sleeve 132 can be fitted onto the outside of the second end of the third sleeve 133, or it can be fitted onto the inside of the second end of the third sleeve 133. Figure 2 and Figure 3 The example shown is only of the second sleeve 132 being fitted onto the second end of the third sleeve 133, and this should not be considered a specific limitation of this application. The first sleeve 131 and the second sleeve 132 are slidable along the axial direction of the third sleeve 133. A first receiving groove 111 is disposed outside the first sleeve 131, and a first power supply coil 112 is disposed inside the first sleeve 131. A second receiving groove 121 is disposed outside the second sleeve 132, and a second power supply coil 122 is disposed inside the second sleeve 132. This base 13 has a simple structure, and hides and protects the first power supply coil 112 and the second power supply coil 122 inside the first sleeve 131 and the second sleeve 132, thereby ensuring the neat appearance of the charging base 10.

[0083] In the above embodiments, to prevent the first sleeve 131 from disengaging from the third sleeve 133, please refer to [reference needed]. Figure 9 and Figure 10 , Figure 9 for Figure 2 and Figure 3 The cross-sectional structural diagram of the charging dock 10 shown is as follows. Figure 10 for Figure 9 The diagram shows a cross-sectional view of the charging base 10 when the base body 13 is in the retracted state. The end of the first sleeve 131 that engages with the third sleeve 133 has a first stop portion 131a, and the end of the third sleeve 133 that engages with the first sleeve 131 has a second stop portion 133a. The first stop portion 131a and the second stop portion 133a cooperate to stop the first sleeve 131, preventing the first sleeve 131 from disengaging from the third sleeve 133. For some embodiments, please refer to [further details]. Figure 9 and Figure 10 The first sleeve 131 is fitted onto the outside of the third sleeve 133. The first stop portion 131a is an inner flange located inside the end of the first sleeve 131 that fits onto the third sleeve 133. The second stop portion 133a is an outer flange located outside the end of the third sleeve 133 that fits onto the first sleeve 131. The first stop portion 131a is located on the side of the second stop portion 133a closer to the second sleeve 132. In this way, the first stop portion 131a can cooperate with the second stop portion 133a to stop the first sleeve 131, thereby preventing the first sleeve 131 from disengaging from the third sleeve 133.

[0084] Similarly, to prevent the second sleeve 132 from disengaging from the third sleeve 133, please refer to [further details]. Figure 9 and Figure 10 The second sleeve 132 has a third stop portion 132a at the end that engages with the third sleeve 133, and a fourth stop portion 133b at the end that engages with the second sleeve 132. The third stop portion 132a and the fourth stop portion 133b cooperate to stop the second sleeve 132, thereby preventing the second sleeve 132 from disengaging from the third sleeve 133. For some embodiments, please refer to [further details]. Figure 9 and Figure 10 The second sleeve 132 is fitted onto the outside of the third sleeve 133. The third stop portion 132a is an inner flange located inside the end of the second sleeve 132 that fits onto the third sleeve 133. The fourth stop portion 133b is an outer flange located outside the end of the third sleeve 133 that fits onto the second sleeve 132. The third stop portion 132a is located on the side of the fourth stop portion 133b closest to the first sleeve 131. In this way, the third stop portion 132a can cooperate with the fourth stop portion 133b to stop the second sleeve 132, thereby preventing the second sleeve 132 from disengaging from the third sleeve 133.

[0085] In some embodiments, please refer back to the documentation. Figure 2 and Figure 3 The charging dock 10 also includes a third power supply coil 14, which can charge other portable devices such as smartphones, smartwatches, and smart earphone charging cases. The third power supply coil 14 is disposed within the dock body 13 and located between the first power supply coil 112 and the second power supply coil 122 to minimize its impact on the size of the charging dock 10. In some embodiments, the third power supply coil 14 is a planar coil. See also... Figure 11 , Figure 11 for Figure 2 The diagram shows the magnetic field of the first power supply coil 112, the second power supply coil 122, and the third power supply coil 14 in the charging base 10. The dashed lines in the diagram represent magnetic field lines. Thus, the application range of the charging base 10 is expanded by the third power supply coil 14. It is understood that the third power supply coil 14 can also be a cylindrical coil. In this embodiment, only a planar coil of the third power supply coil 14 is used as an example for illustration, and this should not be considered a special limitation imposed on this application.

[0086] In some embodiments, the third power supply coil 14 is a standard wireless charging MP-A2 model coil. The MP-A2 model coil can be matched with the charging cases of smartphones, smartwatches and smart earphones, and has a high coupling coefficient, which can improve the charging efficiency of the third power supply coil 14 to smartphones, smartwatches and smart earphones.

[0087] In some embodiments, please refer to Figure 9 and Figure 10The third power supply coil 14 is disposed inside the third sleeve 133. In this way, the third power supply coil 14 can be hidden and protected by the third sleeve 133, so as to ensure the clean appearance of the charging base 10 and extend the service life of the third power supply coil 14.

[0088] Please see Figure 12 , Figure 12 for Figure 2 The charging dock 10 shown is in contact with Figure 4The diagram shows the internal circuitry of the smart glasses' first temple 22 and second temple 23, along with other portable electronic devices 30, during charging matching. In this embodiment, the charging dock 10 includes a universal serial bus (USB) interface 151, an overvoltage protection (OVP) chip 152, a first voltage regulator chip 153a, a second voltage regulator chip 153b, a third voltage regulator chip 155, a fourth voltage regulator chip 157, a first charging chip 154a, a second charging chip 154b, a third charging chip 156, and a switch 158. The USB interface 151 includes, but is not limited to, Type-A, Type-B, Type-C, and Type-C interfaces. The USB interface 151 is used to connect a charging adapter to receive DC power input. The OVP chip 152 is used to provide overvoltage protection for the current supplied to the USB interface 151. The first voltage regulator chip 153a, the second voltage regulator chip 153b, the third voltage regulator chip 155, and the fourth voltage regulator chip 157 can be buck-boost chips. These chips respectively regulate the voltage of the power received by the USB interface 151 and supply it to the first charging chip 154a, the second charging chip 154b, the third charging chip 156, and the switch 158. The switch 158 controls the supply or disconnection of power to the first charging chip 154a, the second charging chip 154b, and the third charging chip 156, thereby starting or stopping them. When the first charging chip 154a, the second charging chip 154b, and the third charging chip 156 are activated, they can respectively convert direct current (DC) into alternating current (AC) and supply the AC power to the first power supply coil 112, the second power supply coil 122, and the third power supply coil 14. All three chips support the Qi protocol. Furthermore, the first voltage regulator chip 153a and the second voltage regulator chip 153b can be the same voltage regulator chip, and the first charging chip 154a and the second charging chip 154b can be the same charging chip. In some embodiments, the overvoltage protection (OVP) chip 152, the first voltage regulator chip 153a, the second voltage regulator chip 153b, the third voltage regulator chip 155, the fourth voltage regulator chip 157, the first charging chip 154a, the second charging chip 154b, the third charging chip 156, and the switch 158 can be integrated on the same circuit board, for example, they can be integrated into... Figure 9 and Figure 10The circuit board 15 includes, but is not limited to, printed circuit boards (PCBs) and flexible printed circuit boards (FPCs). In some embodiments, the circuit board 15 is disposed within a third sleeve 133. In this way, the circuit board 15 can be hidden and protected by the third sleeve 133.

[0089] Please continue reading. Figure 12 The internal circuits of the first temple 22, the second temple 23, and the other portable electronic devices 30 are similar, all including a receiving coil, a receiving chip, a charging management chip (charger), a battery, and a control unit. The receiving coil of the first temple 22 is a first receiving coil 221, and the receiving chip of the first temple 22 is a first receiving chip; the receiving coil of the second temple 23 is a second receiving coil 231, and the receiving chip of the second temple 23 is a second receiving chip; the receiving coil of the other portable electronic devices 30 is a third receiving coil, and the receiving chip of the other portable electronic devices 30 is a third receiving chip. The receiving coils of the first temple 22, the second temple 23, and other portable electronic devices 30 are respectively matched with the first power supply coil 112, the second power supply coil 122, and the third power supply coil 14 for charging. During charging, alternating current is generated in the receiving coils. The receiving chips of the first temple 22, the second temple 23, and other portable electronic devices 30 are all Qi-compliant chips. These three chips convert the alternating current into direct current and store it in the battery through the charging management chip. A control unit is used to control the operation of the receiving chips. In some embodiments, the receiving chips include a rectifier bridge and a low dropout regulator (LDO), and the control unit is a microprogrammed control unit (MCU).

[0090] Please see Figure 13 , Figure 13This is a schematic diagram of the structure of a charging base 10 provided in some embodiments of this application. In this embodiment, the base body 13 includes a first guide rail 131A, a second guide rail 132A, a lead screw 133A, a fixed base 134, a first sliding base 135, and a second sliding base 136. The first guide rail 131A, the second guide rail 132A, and the lead screw 133A are arranged in parallel, and the fixed base 134 is connected to the first guide rail 131A, the second guide rail 132A, and the lead screw 133A. The first guide rail 131A, the second guide rail 132A, and the lead screw 133A can rotate about their own axes relative to the fixed base 134, but cannot move along their own axial direction relative to the fixed base 134. The first sliding base 135 and the second sliding base 136 are slidably connected to the first guide rail 131A and the second guide rail 132A. The lead screw 133A is a bidirectional lead screw, and there is a threaded engagement between the first sliding base 135 and the lead screw 133A, and between the second sliding base 136 and the lead screw 133A. The first receiving groove 111 is disposed on the first sliding seat 135, and the first power supply coil 112 is disposed within the first sliding seat 135. The second receiving groove 121 is disposed on the second sliding seat 136, and the second power supply coil 122 is disposed within the second sliding seat 136. When the lead screw 133A rotates, it can drive the first sliding seat 135 and the second sliding seat 136 to move closer to or further away from each other, and drive the first receiving groove 111 and the second receiving groove 121 to move closer to or further away from each other, so as to adjust the distance between the first receiving groove 111 and the second receiving groove 121. This structure is simple and has high adjustment accuracy. The third power supply coil 14 is disposed within the fixed seat 134.

[0091] This application also provides a smart glasses charging system; please refer to [link / reference]. Figure 14 , Figure 14 This is a schematic diagram of the structure of a smart glasses charging system provided in some embodiments of this application. The smart glasses charging system includes a charging base 10 as described in any of the above embodiments and smart glasses 20 as described in any of the above embodiments. The first receiving groove 111 of the charging base 10 is used to receive the first temple 22 of the smart glasses 20 in the open state; the second receiving groove 121 of the charging base 10 is used to receive the second temple 23 of the smart glasses 20 in the open state; such that the first power supply coil 112 of the charging base 10 is arranged opposite to the first power receiving coil 221 contained in the first receiving groove 111, and the second power supply coil 122 of the charging base 10 is arranged opposite to the second power receiving coil 231 contained in the second receiving groove 121.

[0092] Since the smart glasses charging system provided in this application includes the charging base 10 as described in any of the above embodiments, and the charging base 10 as described in any of the above embodiments enables the smart glasses to support Qi protocol wireless charging, which is conducive to the unification of wireless charging protocols for portable electronic devices and reduces the cost of smart glasses, the cost of the smart glasses charging system can be reduced.

[0093] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A charging stand, characterized in that, include: seat body; A first receiving slot and a second receiving slot are disposed on the base body. The first receiving slot is used to receive the first temple of the smart glasses in the open state; the second receiving slot is used to receive the second temple of the smart glasses in the open state; a first receiving coil is disposed in the first temple and a second receiving coil is disposed in the second temple. A first power supply coil and a second power supply coil are disposed in the housing. The first power supply coil is disposed opposite to the first receiving groove, and the second power supply coil is disposed opposite to the second receiving groove, such that the first power supply coil is disposed opposite to the first receiving coil disposed in the first receiving groove, and the second power supply coil is disposed opposite to the second receiving coil disposed in the second receiving groove. The charging dock also includes a first charging chip supporting the Qi protocol and a second charging chip supporting the Qi protocol. The first power supply coil is electrically connected to the first charging chip, and the second power supply coil is electrically connected to the second charging chip. The first temple is also provided with a first power receiving chip that supports the Qi protocol, and the first power receiving chip is electrically connected to the first power receiving coil; the second temple is also provided with a second power receiving chip that supports the Qi protocol, and the second power receiving chip is electrically connected to the second power receiving coil.

2. The charging stand according to claim 1, characterized in that, Both the first and second receiving grooves are straight, elongated grooves; Both the first power supply coil and the second power supply coil are cylindrical coils. The axial direction of the first power supply coil is parallel to the length direction of the first receiving groove, and the axial direction of the second power supply coil is parallel to the length direction of the second receiving groove.

3. The charging stand according to claim 2, characterized in that, The first receiving groove and the second receiving groove are arranged in parallel.

4. The charging stand according to any one of claims 1-3, characterized in that, The area of ​​the orthographic projection of the first power supply coil onto the bottom wall of the first receiving tank is located inside the bottom wall of the first receiving tank; the area of ​​the orthographic projection of the second power supply coil onto the bottom wall of the second receiving tank is located inside the bottom wall of the second receiving tank.

5. The charging stand according to any one of claims 1-3, characterized in that, The seat includes a first end and a second end; the first receiving groove is disposed at the first end of the seat, and the second receiving groove is disposed at the second end of the seat; the distance between the first end and the second end of the seat is variable.

6. The charging dock according to claim 5, characterized in that, The seat body includes a first sleeve, a second sleeve, and a third sleeve, the third sleeve having a first end and a second end; the first sleeve is sleeved with the first end of the third sleeve, and the second sleeve is sleeved with the second end of the third sleeve; the first sleeve and the second sleeve are slidable along the axial direction of the third sleeve; The first receiving groove is disposed on the first sleeve, the first power supply coil is disposed inside the first sleeve, the second receiving groove is disposed on the second sleeve, and the second power supply coil is disposed inside the second sleeve.

7. The charging stand according to any one of claims 1-3, characterized in that, It also includes a third power supply coil; The third power supply coil is disposed in the base body and located between the first power supply coil and the second power supply coil, and the third power supply coil is a planar coil.

8. A smart glasses charging system, characterized in that, include: The smart glasses include a first temple and a second temple, wherein a first power receiving coil is disposed in the first temple and a second power receiving coil is disposed in the second temple; A charging dock includes a base body, a first receiving slot, a second receiving slot, a first power supply coil, and a second power supply coil. The first receiving slot and the second receiving slot are disposed on the base body. The first receiving slot is used to accommodate the first temple of a smart glasses in an open state; the second receiving slot is used to accommodate the second temple of the smart glasses in an open state. The first power supply coil and the second power supply coil are disposed in the base body. The first power supply coil is disposed opposite to the first receiving slot, and the second power supply coil is disposed opposite to the second receiving slot, such that the first power supply coil is disposed opposite to the first receiving coil accommodated in the first receiving slot, and the second power supply coil is disposed opposite to the second receiving coil accommodated in the second receiving slot. The charging dock also includes a first charging chip supporting the Qi protocol and a second charging chip supporting the Qi protocol. The first power supply coil is electrically connected to the first charging chip, and the second power supply coil is electrically connected to the second charging chip. The first temple is also provided with a first power receiving chip that supports the Qi protocol, and the first power receiving chip is electrically connected to the first power receiving coil; the second temple is also provided with a second power receiving chip that supports the Qi protocol, and the second power receiving chip is electrically connected to the second power receiving coil.

9. The smart glasses charging system according to claim 8, characterized in that, Both the first and second receiving grooves are straight, elongated grooves; Both the first power supply coil and the second power supply coil are cylindrical coils. The axial direction of the first power supply coil is parallel to the length direction of the first receiving groove, and the axial direction of the second power supply coil is parallel to the length direction of the second receiving groove.

10. The smart glasses charging system according to claim 9, characterized in that, Both the first and second receiving coils are cylindrical coils. The axial direction of the first receiving coil is consistent with the length direction of the first temple, and the axial direction of the second receiving coil is consistent with the length direction of the second temple. The first receiving coil is of equal length to the first sending coil, and the second receiving coil is of equal length to the second sending coil. The first sending coil is positioned directly opposite the first receiving coil, and the second sending coil is positioned directly opposite the second receiving coil.

11. The smart glasses charging system according to any one of claims 8-10, characterized in that, The area of ​​the orthographic projection of the first power supply coil onto the bottom wall of the first receiving tank is located inside the bottom wall of the first receiving tank; the area of ​​the orthographic projection of the second power supply coil onto the bottom wall of the second receiving tank is located inside the bottom wall of the second receiving tank.

12. The smart glasses charging system according to any one of claims 8-10, characterized in that, The seat includes a first end and a second end; the first receiving groove is disposed at the first end of the seat, and the second receiving groove is disposed at the second end of the seat; the distance between the first end and the second end of the seat is variable.

13. The smart glasses charging system according to any one of claims 8-10, characterized in that, The charging dock also includes a third power supply coil; The third power supply coil is disposed in the base body, located between the first power supply coil and the second power supply coil, and the third power supply coil is a planar coil.

14. The smart glasses charging system according to any one of claims 8-10, characterized in that, The charging dock is provided with a first limiting structure, and the smart glasses are provided with a second limiting structure, the second limiting structure being used to cooperate with the first limiting structure.

15. The smart glasses charging system according to claim 14, characterized in that, The first limiting structure and the second limiting structure are magnetic components, and the first limiting structure is used to attract the second limiting structure.

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