Intelligent glasses power supply system and intelligent glasses

Abstract

The invention relates to the field of lithium ion battery preparation, and discloses an intelligent glasses power supply system and intelligent glasses. An intelligent glasses power supply system comprises a glasses frame and glasses legs hinged to the two sides of the glasses frame, ear hooks used for being hung on ears are arranged at the tail ends of the glasses legs, the glasses frame is of an annular hollow structure, an annular lithium ion battery is arranged in an annular cavity formed in the glasses frame, cavities are formed in the ear hooks, and the annular lithium ion battery is arranged in the cavities. A button type lithium ion battery is arranged in the cavity; the annular lithium ion battery and the button type lithium ion battery are electrically connected through a built-in wire or a flexible circuit board to form a distributed power supply system to supply power to a power utilization module of the intelligent glasses.

Description

Technical Field

[0001] This invention relates to the field of wearable device technology, and more specifically to a power supply system for smart glasses and smart glasses. Background Technology

[0002] As an important platform for technologies such as augmented reality (AR) and virtual reality (VR), smart glasses are becoming increasingly powerful, integrating multiple modules such as high-brightness transparent displays, eye tracking, voice interaction, and gesture recognition. This has led to a significant increase in device power consumption, placing higher demands on battery life.

[0003] During the research process of this invention, the inventors discovered that most current power supply solutions for smart glasses adopt a centralized layout, placing the battery inside the temple of the glasses. Summary of the Invention

[0004] One of the objectives of this invention is to provide a power supply system for smart glasses and smart glasses in order to solve the problems of small battery capacity and short battery life in existing smart glasses.

[0005] In a first aspect, embodiments of the present invention provide a power supply system for smart glasses, including a frame and temples hinged to both sides of the frame, wherein the ends of the temples are provided with ear hooks for attaching to the ears. The frame is a hollow annular structure, and a ring-shaped lithium-ion battery is built into the annular cavity formed inside the frame. A cavity is provided inside the ear hook, and a button-type lithium-ion battery is placed inside the cavity. The toroidal lithium-ion battery and the button-type lithium-ion battery are electrically connected through built-in wires or flexible circuit boards, forming a distributed power supply system to power the power module of the smart glasses.

[0006] Optionally, the temple and the frame are respectively provided with pluggable electrical connection parts, and the temple and the frame are pluggable.

[0007] Optionally, a lithium-ion battery is also provided inside the temple, which is electrically connected to the distributed power supply system.

[0008] Optionally, the lithium-ion battery is disposed within a cavity formed in the temple near the front end of the frame.

[0009] Optionally, the ear hook and the temple of the glasses are respectively provided with pluggable electrical connection parts, and the ear hook and the temple of the glasses are pluggable.

[0010] Optionally, each pluggable electrical connection part includes: any one of a magnetic adsorption contact, a spring pin connector, or a metal spring contact.

[0011] Optionally, the lens may include at least three temples, one of which is available for replacement.

[0012] Optionally, it includes at least three of the ear hooks, one of which is provided for replacement.

[0013] Optionally, the lithium-ion batteries in the distributed power supply system are connected in parallel; or, In the distributed power supply system, one or at least two of the batteries individually power the power modules of the smart glasses.

[0014] 10. The power supply system for smart glasses according to claim 1, characterized in that, The ring-shaped lithium-ion battery is a single ring-shaped battery body that is integrated, or it is composed of at least two arc-shaped battery cells that are electrically connected together.

[0015] 11. The power supply system for smart glasses according to claim 10, characterized in that, The integrated single-cell ring battery body includes a ring-shaped shell, a ring battery body sealed within the ring-shaped shell, and an electrolyte. 12. The smart glasses power supply system according to claim 11, characterized in that, The battery assembly includes annular positive electrode plates, annular negative electrode plates, and annular separators stacked together, with the annular separators spaced apart between any adjacent annular positive electrode plates and annular negative electrode plates.

[0016] 13. The power supply system for smart glasses according to claim 12, characterized in that, At least one tab is provided on the edge of each of the aforementioned annular positive electrode plates and each of the aforementioned annular negative electrode plates. The positive polarity layers are stacked one on top of the other to form a stacked positive electrode group, and the negative polarity layers are stacked one on top of the other to form a stacked negative electrode group. The positive electrode tabs are connected in parallel to serve as the external positive electrode of the toroidal lithium-ion battery. The negative electrode tabs are connected in parallel to serve as the external negative electrode of the toroidal lithium-ion battery.

[0017] 14. The power supply system for smart glasses according to claim 13, characterized in that, At least three tabs are provided on the edge of each of the aforementioned annular positive electrode plates and each of the aforementioned annular negative electrode plates. The positive electrode tabs are stacked one on top of the other to form at least three stacked positive electrode tab groups. The negative polarity tabs are stacked one on top of the other to form at least three stacked negative polarity tab groups. All of the aforementioned positive electrode tabs are connected in parallel to serve as the external positive electrode of the toroidal lithium-ion battery; All of the aforementioned negative electrode tabs are connected in parallel to serve as the external negative electrode of the toroidal lithium-ion battery.

[0018] 15. The power supply system for smart glasses according to claim 14, characterized in that, At least three tabs are provided on the inner and outer edges of each of the annular positive electrode plates and each of the annular negative electrode plates.

[0019] 16. The power supply system for smart glasses according to claim 15, characterized in that, Each of the tabs is uniformly distributed on the edge of the annular positive / negative electrode; or distributed at a predetermined position based on the shape of the annular structure, so as to make the current distribution uniform.

[0020] 17. The power supply system for smart glasses according to claim 11, characterized in that, The annular shell is an aluminum-plastic film shell, comprising a bottom aluminum-plastic film and a top aluminum-plastic film. An annular recess is formed by stamping on the bottom aluminum-plastic film, and the annular battery body is housed within the annular recess. The top layer aluminum-plastic film covers the annular recess and is heat-sealed with the bottom layer aluminum-plastic film outside the inner and outer edges of the annular recess, forming an inner heat-sealing strip and an outer heat-sealing strip. The two electrodes of the battery assembly are respectively led out from the inner heat-sealing tape and / or the outer heat-sealing tape. Each electrode has a tab adhesive at the contact point with the aluminum-plastic film for insulation and sealing.

[0021] 18. The power supply system for smart glasses according to claim 17, characterized in that, The outer heat-sealing tape is folded up along the edge of the annular battery and bonded to the outer side of the battery in the thickness direction using hot melt adhesive. The outermost end of the heat-sealing tape is a cut end face, which is fully covered with a waterproof adhesive layer. The waterproof adhesive layer also extends outwards from the folded edge of the heat-sealing tape, forming a waterproof adhesive extension edging. The waterproof adhesive extends to completely cover the hot melt adhesive overflow area on the outward-facing surface of the heat-sealing tape fold, forming a double-layer overlap area.

[0022] 19. The power supply system for smart glasses according to claim 11, characterized in that, The annular shell includes: The ring-shaped outer shell is made of metal and has an annular cavity with an opening at the top inside. The cover assembly includes: an outer metal cover, an inner metal cover, and insulating components. The outer metal cover plate covers and seals the top opening of the annular outer shell, and pole post holes are provided on the outer metal cover plate. The inner metal cover plate is sealed within the electrode post hole by the insulating component, serving to seal the electrode post hole. The positive and negative terminals of the ring-shaped battery body are electrically connected to the inner wall of the outer metal cover and the inner end face of the inner metal cover, respectively.

[0023] 20. The power supply system for smart glasses according to claim 19, characterized in that, The bottom surface of the outer edge of the metal cover plate is fused and sealed with the end face of the opening at the top of the annular shell.

[0024] 21. The power supply system for smart glasses according to claim 11, characterized in that, The edges and / or interior of the ring-shaped battery body are pre-set with micro-channels or hydrophilic coatings to promote electrolyte wetting.

[0025] 22. The smart glasses power supply system according to claim 11, characterized in that, Inside the frame, around the annular battery housing, cooling channels are provided for introducing cooling medium to dissipate heat from the annular lithium-ion battery.

[0026] 23. The power supply system for smart glasses according to claim 11, characterized in that, The space between the annular battery housing and the annular shell is filled with a thermally conductive interface material or a phase change material.

[0027] 24. The power supply system for smart glasses according to claim 10, characterized in that, At least two arc-shaped battery cells are electrically connected in parallel or in series.

[0028] 25. The power supply system for smart glasses according to claim 10, characterized in that, At least two arc-shaped battery cells are: two semi-circular arc-shaped battery cells.

[0029] Secondly, embodiments of the present invention provide a smart glasses, including a power module and any of the above-described smart glasses power supply systems, wherein the power supply system is electrically connected to the power module and supplies power to the power module.

[0030] Compared with existing technologies, the smart glasses power supply system provided by this invention has the following significant advantages: First, it creatively utilizes the untapped space of the frame and ear hook in traditional power supply schemes, functionalizing these structural components as battery compartments. This fundamentally breaks through the capacity limit of relying solely on the temple space, achieving an order-of-magnitude increase in total battery capacity and significantly extending the battery life of smart glasses.

[0031] Second, the distributed battery layout distributes the weight to various parts of the glasses, avoiding the problems of head-heavy and uncomfortable wearing caused by excessive weight on one temple in traditional solutions. It has better balance and optimizes the overall weight distribution and wearing experience.

[0032] Third, multiple battery cells can work in parallel to provide maximum power output, or work individually when necessary. This results in a flexible power supply strategy, higher system redundancy, stronger reliability, and a more flexible and reliable system architecture. Attached Figure Description

[0033] The accompanying drawings, which are provided to further illustrate the invention and form part of this application, do not constitute an undue limitation of the invention.

[0034] Figure 1 This is a schematic diagram of the assembly structure of two ring-shaped lithium-ion batteries, a frame, and temples (including ear hooks) provided in this embodiment. Figure 2 This is a schematic diagram of the assembly structure of the irregularly shaped battery, button battery, and temple (including ear hook) provided in this embodiment; Figure 3 This is a schematic diagram of the assembly structure when the irregularly shaped battery and the button battery provided in this embodiment are located inside the temple (including the ear hook).

[0035] Figures 4-7 These are three-dimensional, front view, top view, and bottom view structural schematic diagrams of the annular soft-pack lithium-ion battery provided in this embodiment; Figures 8-11 These are three-dimensional, front view, top view, and bottom view structural schematic diagrams of the annular rigid-shell lithium-ion battery provided in this embodiment; Figure 12 This is a schematic diagram of the structure of the toroidal rigid-shell lithium-ion battery connected in parallel via connectors, as provided in this embodiment. Figure 13 This is a schematic diagram of the structure of a ring battery formed by connecting two semi-circular arc battery units in this embodiment; Figure 14 Provided for this embodiment Figure 13 The diagram shows the assembly structure of two ring-shaped lithium-ion batteries assembled into the mirror frame. Figure 15 Provided for this embodiment Figure 13 The diagram shows the assembly structure of two ring-shaped lithium-ion batteries assembled into the frame. Figure 16 This is a schematic diagram of the assembly structure of two ring-shaped lithium-ion batteries assembled into the lens frame, as provided in this embodiment.

[0036] Figure label: 1: Frame; 11: Ring-shaped battery housing cavity; 2: Central optical storage space; 3: Ring-shaped lithium-ion battery; 31: Heat-sealed tape with folded edge; 4: Annular outer shell; 41: Outer metal cover; 42: Inner metal cover; 5: Electrical connectors; 6: Temples; 61: Irregularly shaped lithium-ion battery; 7: Ear hook; 71: Button lithium-ion battery; 8: Arc-shaped battery unit; 9: Mirror bridge; 10: Mirror frame cover. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0038] Examples of embodiments of the present invention described in detail below are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0039] The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, but should not be construed as limiting the invention. In the description of the invention, it should be understood that terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0040] Furthermore, the terms "" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] See Figures 1-3 As shown, this embodiment provides a power supply system for smart glasses, which mainly includes a frame 1 and temples 6 hinged to both sides of the frame 1. The ends of the temples 6 are provided with ear hooks 7 for attaching to the ears. The frame 1 is designed as a hollow annular structure, and an annular battery housing 11 formed inside the frame 1 houses an annular lithium-ion battery 3. This annular battery is custom-designed so that its shape matches the contour of the frame 1, maximizing the use of the entire annular space of the frame 1.

[0043] An internal cavity is provided for the ear hook 7, in which a button cell lithium-ion battery 71 is precisely installed. The size and shape of the button cell battery match the cavity of the ear hook 7.

[0044] The ring-shaped lithium-ion battery 3 inside the frame 1 and the button-type lithium-ion battery 71 inside the ear hook 7 are electrically connected through built-in wires or flexible circuit boards to form a distributed power supply system to power the power module of the smart glasses.

[0045] Compared with the prior art, the smart glasses power supply system provided by the present invention has at least one of the following significant advantages: First, it creatively utilizes the untapped space of the frame 1 and ear hook 7 in traditional power supply schemes, functionalizing these structural components as battery compartments. This fundamentally breaks through the capacity limit of relying solely on the space of the temple 6, achieving an order-of-magnitude increase in total battery capacity and significantly extending the battery life of smart glasses.

[0046] Second, the distributed battery layout distributes the weight to various parts of the glasses, avoiding the problems of head-heavy and uncomfortable wearing caused by excessive weight on one temple in traditional solutions. This results in better balance and optimizes the overall weight distribution and wearing experience.

[0047] Third, multiple battery cells can work in parallel to provide maximum power output, or work individually when necessary. This results in a flexible power supply strategy, higher system redundancy, stronger reliability, and a more flexible and reliable system architecture.

[0048] Fourth, the temple 6 and / or ear hook 7 can be designed as a pluggable modular design, allowing users to achieve "physical instant charging" by replacing the spare battery module (spare temple 6 or spare ear hook 7), solving the pain point of inconvenience in finding charging facilities in outdoor or mobile scenarios, and greatly improving the user experience.

[0049] As an illustration of this embodiment, the temple 6 in the power supply system of the smart glasses is connected to the frame 1 via a plug-in interface. This plug-in interface includes a set of electrical connectors (such as magnetic contact 4, spring pin connector, or any of metal spring contact), used to achieve mechanical fixation and electrical conduction when the temple 6 is inserted.

[0050] As an illustration of this embodiment, a cavity is also provided inside the temple 6, within which a non-circular lithium-ion battery 61 can be further disposed. Similarly, the ear hook 7 can be connected to the temple 6 via a similar plug-in interface.

[0051] The circuit principle of the entire smart glasses power supply system is as follows: the toroidal lithium-ion battery 3, the temple battery 6 (if any), and the button cell battery in the ear hook 7 are connected to a power management module (PMIC) via a flexible printed circuit board (FPC). The PMIC is responsible for charging management, power metering, discharge balancing, and output regulation of these batteries, ultimately supplying power to the smart glasses' motherboard, display module, sensors, and other electrical loads. The PMIC can be configured to allow all batteries to discharge in parallel, or selectively enable or disable some batteries based on power levels or user settings, allowing one or at least two of the batteries in the distributed power supply system to individually power the smart glasses' electrical modules.

[0052] When the main system battery is low, users can directly remove the current temple 6 and replace it with a fully charged spare temple 6; or remove the current ear hook 7 and replace it with a fully charged spare ear hook 7, which can quickly restore a large amount of power, just like changing a camera battery.

[0053] As an illustration of this embodiment, this embodiment also provides a ring-shaped lithium-ion battery 3 for smart glasses. The battery body is a ring structure, which is configured to be accommodated in the internal space of the frame 1 of the smart glasses. The electrodes of the battery body are electrically connected to the positive and negative terminals of the power supply circuit located inside the frame 1 to supply power to the smart glasses.

[0054] The following experimental examples further illustrate the effectiveness of this embodiment.

[0055] Control group: Smart glasses prototype I: The battery is located only on one temple 6 (capacity: 100mAh). Smart Glasses Prototype II: The battery is evenly distributed on both temples 6 (total capacity: 150mAh).

[0056] Experimental group: Smart Glasses Prototype III: Employs distributed power supply, wherein: Frame 1: Built-in ring battery with a capacity of 200mAh; Single temple 6: Built-in irregularly shaped battery, capacity 50mAh; Single-sided ear hook 7: Built-in button battery, capacity 30mAh; Total system capacity: 200 + 50 + 30 = 280mAh.

[0057] Backup modules: An additional fully charged spare temple 6 (50mAh) and a fully charged spare ear hook 7 (30mAh) are provided.

[0058] Total battery life test: Under the same working conditions (maintaining maximum screen brightness and continuously running the same AR application), the duration from full charge to automatic shutdown was recorded. The test results are as follows: prototype Battery capacity (mAh) Actual battery life (minutes) Capacity increase ratio Battery life improvement ratio I 100 60 Baseline Baseline II 150 90 +50% +50% III 280 168 +180% +180% .

[0059] Experiments show that this invention achieves a leapfrog increase in battery capacity (+180%) through structural innovation, which is far beyond what can be achieved by simply optimizing the space of the temple 6 (+50%).

[0060] Modular power replenishment efficiency test: The prototype unit 3 in the experimental group was completely drained of power and shut down. The time it took to restore operation was tested under the following two conditions: a) Charge to 100% using a wired fast charger; b) Replace with spare temple 6 and spare ear hook 7.

[0061] The experimental data obtained are as follows: Energy replenishment methods Battery capacity after recharging (mAh) Restored to working hours Remark Wired fast charging (30W) 280 ≈ 30 minutes Need to find a charger and power source Replace the spare module 50+30=80 <10 seconds Replace and use immediately, no cables required. .

[0062] As can be seen from the above, the technical solution of "pluggable temples 6 / ear hooks 7" solves the technical problem of "rapid power replenishment" and provides a brand-new and extremely efficient power replenishment paradigm - physical replacement. Compared with the existing electrical charging technology, the "second-level" power replenishment experience provided by this embodiment is completely impossible to achieve by the existing technology.

[0063] Overall weight distribution and wearing comfort were tested using a precision electronic scale. Subjects were recruited for blind wearing tests and completed a comfort questionnaire (scoring from 1 to 5). The experimental data are shown in the table below: prototype Total weight (g) Weight difference between left and right sides (g) Weight difference before and after (g) Average comfort rating I 80 35 15 2.1 II 85 5 20 3.5 III 90 <5 <5 4.6 .

[0064] Data shows that the distributed layout provided by this invention not only increases capacity but also unexpectedly optimizes weight balance. Distributing weight across the frame 1 (front) and both sides (temples 6, ear hooks 7) achieves optimal balance, resulting in an unexpected improvement in wearing comfort.

[0065] Thermal management tests were conducted under full load in a high-temperature environment, using a thermal imager to monitor the surface temperature of the ring-shaped battery in the frame 1 and the battery in the temple 6. The tests showed that, due to the dispersed heat source, the highest surface temperature of each battery cell in this invention was lower than that of a single large battery in the control group, by 5-8°C.

[0066] As can be seen, the distributed architecture provided in this embodiment not only solves the capacity problem, but also the heat dissipation problem caused by high capacity, thereby improving the security and reliability of the system.

[0067] See Figures 1-16 As shown.

[0068] This embodiment provides a ring-shaped lithium-ion battery 3 for smart glasses. The battery body is a ring structure, which is configured to be accommodated in the internal space of the frame 1 of the smart glasses. The electrodes of the battery body are electrically connected to the positive and negative terminals of the power supply circuit located inside the frame 1 to supply power to the smart glasses.

[0069] See Figures 4-11 As shown in the illustration, the ring structure in this embodiment can be an integrated single ring-shaped battery body; or, see... Figure 13 As shown, the ring structure can also be composed of at least two arc-shaped battery units 8, which are connected in series, in parallel, or in a combination of series and parallel to provide power to the smart glasses.

[0070] Each battery body and battery cell comprises a positive electrode, a negative electrode, a separator, and an electrolyte. External tabs are welded onto the positive and negative electrodes to serve as external electrodes. A separator separates each positive and negative electrode. The positive electrode includes an aluminum foil current collector and positive active material layers coated on both sides of the aluminum foil current collector. The positive active material can be, but is not limited to, lithium iron phosphate, ternary materials, etc. The negative electrode includes a copper foil current collector and negative active material layers coated on both sides of the copper foil current collector. The negative active material can be, but is not limited to, graphite, silicon carbide, etc.

[0071] See Figure 1 , 14As shown in ~16, when the annular lithium-ion battery 3 of this embodiment is applied to smart glasses, at least one frame 1 is provided on the smart glasses, and the frame 1 surrounds the central optical accommodating space 2, which is used to assemble optical lenses or shields or display modules or is empty.

[0072] In this embodiment, at least one frame 1 has an annular battery body receiving cavity 11 for accommodating the annular lithium-ion battery 3 of this embodiment. The annular lithium-ion battery 3 is assembled in the annular battery body receiving cavity 11, and the positive and negative terminals of the battery are electrically connected to the power circuit of the smart glasses. After the annular lithium-ion battery 3 is placed into the annular battery body receiving cavity 11, the frame cover 10 is closed.

[0073] The power circuitry of smart glasses includes, but is not limited to, any one or two or more combinations of motherboards, display modules, and sensors.

[0074] For example, but not limited to, the frame 1 may have positive and negative welding positions. When assembling the ring-shaped lithium-ion battery 3, the positive and negative terminals of the ring-shaped lithium-ion battery 3 are welded to the positive and negative welding positions inside the frame 1 of the power circuit through wires, so as to electrically connect to the power circuit of the smart glasses.

[0075] For example, a flexible printed circuit board (FPC) is installed inside the frame 1, which can be used to solder the positive and negative terminals of the ring-shaped lithium-ion battery 3 to the FPC to supply power to the power circuit of the smart glasses.

[0076] The annular lithium-ion battery 3 of this embodiment can be applied to smart glasses, and can also be applied to other electronic products similar to smart glasses. For example, if the electronic product has a component similar to the frame 1, and an annular battery body receiving cavity 11 is formed or defined in the component, the annular lithium-ion battery 3 of this embodiment can be assembled into the annular battery body receiving cavity 11 to power the electronic product.

[0077] During the research process of this embodiment, the inventors discovered a deep-rooted technical bias in the field: the battery of smart glasses must be of a standard shape (square, cylindrical, or other solid structure), and its optimal and most natural placement is on the temple 6. This embodiment breaks away from this mindset, shifting from "placement" to "integration," and proposes a design scheme of "integrated functional component structure." That is, the battery is no longer an independent component that needs to find space to place, but becomes part of the core structural component of the glasses (frame 1).

[0078] The technical solution of this embodiment has the following beneficial effects: First, a revolutionary breakthrough in space utilization and a significant improvement in battery life: This embodiment designs the battery as a ring shape that perfectly matches the space of the frame 1, achieving the ultimate utilization of traditionally "unused space." Experimental analysis (see below) shows that, with the same frame 1 volume, the ring-shaped battery design can improve the effective volume utilization rate by more than 40% compared to the traditional temple 6 battery design, thereby accommodating more active materials and increasing the battery life of smart glasses by 25%-50%, fundamentally solving the problem of insufficient battery life.

[0079] Second, a fundamental improvement in wearing comfort: By evenly distributing the battery weight throughout the entire frame 1 or symmetrically distributing it in the left and right frames 1, the problem of torque imbalance caused by concentrated battery placement is completely eliminated. Experiments show that the weight distribution scheme of this invention brings the center of gravity of the smart glasses closer to the wearer's nose and face center, significantly reducing the pressure of the temples 6 on the head and improving comfort and stability during long-term wear.

[0080] Third, the industrial design is greatly liberated and aesthetically enhanced: the battery becomes a functional module integrated with the structural components. Designers can liberate the design of the temple 6, making it more slender and stylish, while also having more freedom to design the shape of the frame 1 (circle, ellipse, polygon, etc.), without being bound by the shape of the standard battery, achieving a perfect unity of aesthetics and functionality.

[0081] This embodiment also provides a specific implementation plan for high reliability: see [link] Figures 4-12 As shown in the illustration, the toroidal battery of this embodiment may be, but is not limited to, an integrated single toroidal battery, which includes a toroidal casing and a toroidal battery body and electrolyte sealed within the toroidal casing.

[0082] The toroidal battery body can be manufactured using a winding process. A core with the same shape as the inner ring of a predetermined circular structure is used. The negative electrode, separator, and positive electrode are stacked and wound around this core to obtain a wound body. The winding thickness of the wound body is the width between the inner and outer rings of the toroidal structure, and the width of the electrode sheets in the wound body is the height of the toroidal structure. After winding, the wound body is shaped to obtain the toroidal battery body.

[0083] The main body of the ring-shaped battery can be manufactured using a stacking process. Specifically, according to a predetermined ring structure, ring-shaped positive electrode sheets, ring-shaped negative electrode sheets, and ring-shaped separators are cut out separately. Using a stacking positioning fixture that is consistent with the predetermined ring structure, the ring-shaped positive electrode sheets, ring-shaped negative electrode sheets, and ring-shaped separators are stacked in the positioning fixture. The inner ring positioning part of the positioning fixture defines the inner edge of each ring structure layer, and the outer ring positioning part of the positioning fixture defines the outer edge of each ring structure layer, so that each ring structure is aligned vertically to form a column with a ring-shaped cross-section.

[0084] The electrolyte in this embodiment can be a solid electrolyte or a liquid electrolyte. The liquid electrolyte can be, but is not limited to, being injected with electrolyte after the toroidal battery body is installed in the casing, so that the liquid electrolyte fills each separator and each electrode in the toroidal battery body. See the prior art for details.

[0085] During the research process of this invention, the inventors discovered that after electrolyte injection, the electrolyte in annular (especially narrow annular) cavities tends to be unevenly distributed due to surface tension and capillary action. This can lead to localized accumulation while other areas remain insufficiently wetted, resulting in increased internal resistance and capacity decay. Therefore, this embodiment provides an integrated flow-guiding structure. Specifically, microporous channels or hydrophilic coatings can be pre-set on the annular diaphragm and / or electrode. More preferably, during electrode stacking, tiny flow-guiding gaps are intentionally left at the edges and / or inside the electrode. These gaps, after winding or pressing, form a capillary network penetrating the annular structure, guiding the electrolyte to quickly and uniformly penetrate and distribute, much like a "ditch."

[0086] Furthermore, during electrolyte injection, step-by-step quantitative injection and centrifugation can be incorporated, employing a multi-step, quantitative injection method from different injection points, rather than a single injection. After injection, the entire battery casing is placed in a dedicated centrifuge. By controlling the centrifugation speed and time, centrifugal force is used to force the electrolyte to be evenly distributed throughout the annular cavity, ensuring thorough wetting.

[0087] In addition, this embodiment preferably uses a membrane with higher porosity and liquid retention capacity. Furthermore, when using an electrolyte as the electrolyte, a wetting agent (such as vinylene carbonate VC, fluoroethylene carbonate FEC, etc.) is added to reduce the surface tension of the electrolyte and enhance its wettability to electrode materials, especially high-nickel cathodes or silicon-carbon anodes.

[0088] First, the solid electrolyte is a dense solid electrolyte film, which is stacked alternately with the annular positive electrode and the annular negative electrode to form the main body of the annular battery.

[0089] During preparation, the positive electrode film, solid electrolyte film, and negative electrode film are stacked or co-sintered in sequence to prepare a composite battery body with a sandwich structure. Then, this composite component is wound or stacked into a ring structure and placed in a ring shell.

[0090] Second, the solid electrolyte is coated on the surface of the annular positive electrode and / or annular negative electrode in the form of a slurry, and then dried and cured to form a solid electrolyte layer.

[0091] In the preparation process, a solid electrolyte, binder, and solvent are mixed to form a slurry, which is then uniformly coated onto the surfaces of annular positive and negative electrodes. After drying to evaporate the solvent, a dense solid electrolyte coating is formed on the electrode surfaces. Subsequently, the coated positive and negative electrodes are stacked with a separator (or without a separator) to form the main body of the annular battery.

[0092] Third, the solid electrolyte is a particulate powder that fills the gaps between the stacked layers of the toroidal battery body and is brought into close contact with the electrode sheets through a pressurization process. For example, during preparation, a mixed solution containing a liquid precursor, lithium salt, and initiator is injected into a casing already containing the toroidal battery body. After the mixed solution fully wets the battery body, an in-situ polymerization reaction is carried out under specific conditions (heating or light irradiation) to generate a solid polymer electrolyte matrix. Another example is that during preparation, the toroidal battery body is placed inside a casing, and then solid electrolyte powder is filled into all the pores of the battery body. Finally, mechanical pressurization is used to densify the powder, forming a tight ion contact interface with the electrode active material.

[0093] As an illustration of this embodiment, this embodiment may also design miniature cooling channels (not shown in the figure) around or inside the annular battery body receiving cavity 11 of the frame 1. These cooling channels can be circulated with a small amount of air or coolant to remove the heat generated by the battery through active or passive means.

[0094] As an optional solution in this embodiment, thermally conductive silicone grease or solid phase change material (PCM) can also be filled between the annular outer shell 4 and the annular battery body receiving cavity 11 of the frame 1. When the battery heats up, the PCM absorbs heat and melts; when the temperature drops, the thermally conductive silicone grease solidifies and releases heat, which can effectively suppress the temperature fluctuation of the battery and avoid local overheating.

[0095] Among them, thermally conductive silicone can be, but is not limited to, aluminum oxide, zinc oxide, aluminum nitride, boron nitride-27, carbon nanotubes, graphene, etc.

[0096] PCM can be made of, but is not limited to, alumina, aluminum nitride, boron nitride, silicon carbide, etc.

[0097] As an optional solution in this embodiment, during the design phase of the ring structure, multiphysics simulation software (such as, but not limited to, COMSOL) is used to simulate the current and temperature fields of the ring battery under different operating conditions, thereby optimizing the position, number, and cooling scheme of the tabs. Multiple temperature sensors are installed at different locations within the ring battery housing cavity 11 of the electronic product (such as, but not limited to, smart glasses). These sensors are typically patch-type temperature sensors attached to multiple points on the inner wall of the cavity. The temperature sensors are connected to the battery management system (BMS) of the electronic product via wires or an FPC to monitor and equalize the battery temperature, achieving intelligent thermal management.

[0098] During the research of this embodiment, the inventors discovered that when current is conducted in a ring circuit, different path lengths may lead to uneven current density between the inner and outer rings. Excessive local current may trigger lithium metal deposition, accelerating battery aging and posing safety risks. Therefore, at least three positive tabs (not shown in the figure) are simultaneously provided on the inner and outer edges of each ring-shaped positive electrode sheet, and at least three negative tabs are simultaneously provided on the inner and outer edges of each ring-shaped negative electrode sheet. During stacking, the positive tabs of each layer are stacked vertically opposite each other, and the negative tabs of each layer are stacked vertically opposite each other. The negative tabs and positive tabs are spatially offset at a certain angle, for example, by 45°, to avoid short circuits due to contact.

[0099] The arrangement of the tabs on the edge of the annular electrode is determined based on the principle of reducing the resistance of the electron transport path and optimizing the uniformity of current distribution.

[0100] For centrally symmetrical annular electrodes (such as circular or elliptical ones), the tabs are preferably symmetrically and evenly distributed on both the inner and outer edges of the ring, for example, three tabs are set at 120-degree intervals on a circular ring.

[0101] For non-centrosymmetric toroidal electrodes (such as rounded rectangular rings, D-shaped rings, or other irregularly shaped rings), the distribution of the tabs needs to be optimized based on this specific shape to ensure that the electron transport path length between the active material in any region of the electrode and the nearest tab is as short and uniform as possible, thereby avoiding local high-resistance regions. This optimization can be determined by simulating the current field and potential field during battery charging and discharging using computer-aided engineering (CAE) software.

[0102] The optimized arrangement of multiple tabs establishes a highly efficient current collection network for the toroidal battery of this invention, ensuring that the current can be uniformly distributed at any point on the toroidal electrode, thereby completely avoiding the risks of local overcurrent, hot spots, and lithium deposition.

[0103] Taking a smart glasses frame with a rounded rectangular shape as an example, the annular battery is adaptively designed with rounded rectangles. CAE simulation shows that the current distribution simulation shows that the current path is longest and most prone to accumulation in the four rounded corner regions. Therefore, in addition to placing tabs at the midpoints of each length and width edge, additional tabs are placed in the four rounded corner regions to provide "shortcuts" specifically for these high-impedance areas. As an example, for a rounded rectangular annular electrode, the tabs are preferably placed near the midpoints of the four sides and the four rounded corner regions, for a total of eight tabs, to specifically optimize the current distribution in the rounded corner regions.

[0104] The following uses a centrally symmetrical, annular stacked battery body as an example to illustrate the effect of this embodiment through experimental comparison.

[0105] Option 1: All tabs are located on the outer circumference of the ring electrode, with equal spacing between them. Applying this option, the current in the inner ring path is close to the tabs, resulting in low resistance and high current. However, the current in the outer ring path needs to take a longer route to reach the inner ring tabs, resulting in a longer path, higher resistance, and therefore lower current. This leads to low utilization of the active material in the outer ring.

[0106] Option 2 involves all tabs located on the inner circumference of the ring electrode. The spacing between the tabs is the same. This option is the opposite of Option 1: the outer ring has a shorter current path and a larger current; the inner ring has a longer current path, higher resistance, and a smaller current. This results in low utilization of the active material in the inner ring.

[0107] It is evident that both Scheme 1 and Scheme 2 will result in uneven current distribution. During charging and discharging, areas with high current will preferentially deposit lithium or excessively delithiate, accelerating battery aging and bringing the risk of thermal runaway.

[0108] Option 3 involves all tabs located on both the inner and outer circumferences of the ring electrode. The spacing between the tabs is uniform along each circumferential edge. This design provides a dedicated "highway" for each region of the ring electrode, significantly shortening the transport paths for ions and electrons.

[0109] Experiments have shown that Scheme 3 has the following beneficial effects: 1. The current distribution is extremely uniform, and the electron transport path between the inner and outer rings is the shortest, which fundamentally solves the problem of uneven current distribution. 2. Lowest internal resistance: Parallel connection effectively reduces the current collector resistance; 3. Superior thermal management: Uniform heat distribution with no localized hot spots.

[0110] As an illustration of this embodiment, the annular shell of this embodiment may be, but is not limited to, an aluminum-plastic film shell or a rigid annular shell made of metal material.

[0111] The annular housing in this embodiment may be, but is not limited to, an aluminum-plastic film housing or a rigid annular housing made of metal material.

[0112] When using an aluminum-plastic film casing, the casing comprises a bottom aluminum-plastic film and a top aluminum-plastic film. During manufacturing, an annular recess is first stamped into the bottom aluminum-plastic film. The pre-wound or stacked annular battery body (including the positive electrode, separator, and negative electrode) is placed into the recess, and electrolyte is injected. Then, the top aluminum-plastic film is used to cover it, and heat sealing is performed outside the inner and outer edges of the annular recess. This allows the polypropylene layers on the opposing inner surfaces of the two aluminum-plastic film layers at the heat-sealing point to melt and fully bond together under pressure and temperature. After cooling and setting, they are sealed together, forming an inner heat-sealing band and an outer heat-sealing band. The aluminum-plastic film casing design is lightweight and offers the best shape adaptability.

[0113] As an illustration of this embodiment, the outer heat-sealing tape can be further folded up along the edge of the annular battery body and bonded to the outer surface of the aluminum-plastic film shell in the thickness direction using hot melt adhesive. Preferably, as an illustration of this embodiment, a waterproof adhesive layer is also applied to the cut ends of the inner heat-sealing tape of the aluminum-plastic film shell and the outer heat-sealing tape bonded to the outer surface in the thickness direction. The waterproof adhesive layer completely covers the hot melt adhesive layer overflowing onto the outer surface of the outer heat-sealing tape. This approach helps to reduce the width of the heat-sealing tape while ensuring its sealing reliability, which is beneficial for improving the energy volume density of the lithium-ion battery.

[0114] The folding process 31 and the adhesive application process are as follows.

[0115] First, the aluminum-plastic film is pre-folded. The heat-sealing strip to be folded is pre-bent at 30° along the outer edge of the heat-sealing strip and the thickness direction of the cavity facing the main body of the ring battery, in order to reduce the internal stress of bending.

[0116] Second, hot melt adhesive coating: hot melt adhesive, which has been melted into a fluid state, is applied by dotting or coating the surfaces of the two heat-sealing tape folds 31 facing the cavity using a precision dispensing machine. The hot melt adhesive application position is about 0.3 mm away from the baseline of the fold 31 to avoid the thickness of the hot melt adhesive from hindering the proximity of the heat-sealing tape fold 31 to the outer side of the cavity where the battery cell body is located, and to ensure that the heat-sealing tape fold 31 and the cavity where the battery cell body is located are tightly bonded.

[0117] The coating thickness of the hot melt adhesive is 50-80μm, ensuring that after the edge is folded and pressed, the hot melt adhesive extends to the entire area of ​​the heat-sealing tape fold 31 and can overflow to the outward surface of the heat-sealing tape fold 31.

[0118] Third, the folding and pressing: a mechanical fixture (such as, but not limited to, a copper block) presses the pre-bent heat-sealing strips on both sides toward the outer side of the cavity containing the battery cell body in the thickness direction. This is done at a pressure of 0.2~0.4MPa (preferably 0.3MPa) and a temperature of 40℃ (fixture temperature) for 5 seconds, allowing the hot melt adhesive to fully flow and wet the two interfaces. Under the pressing action, the hot melt adhesive overflows, spilling from the top end of the folded edge 31 onto the outward-facing surface of the heat-sealing strip folded edge 31. Preferably, the length of the hot melt adhesive layer overflowing onto the outward-facing surface of the heat-sealing strip folded edge 31 after pressing is the same as the length of the heat-sealing strip folded edge 31, and the width slightly exceeds the width of the heat-sealing strip folded edge 31. After cooling, the hot melt adhesive solidifies, and the two folded side heat-sealing strips are tightly bonded to the outer side of the cavity containing the battery cell body through the hot melt adhesive. The hot melt adhesive layer also solidifies on the outermost edge of this side and near the top of the outward-facing surface of the heat-sealing strip fold 31, forming a hot melt adhesive overflow area. In this embodiment, a polyolefin-based hot melt adhesive is preferred, but not limited to, with a melting point of 0-150℃ and a melt viscosity of 1500-3000cps. Experiments have shown that, using this embodiment, the hot melt adhesive has good compatibility with the nylon layer on the outer surface of the aluminum-plastic film. Under pressure, the hot melt adhesive penetrates into the micropores within the nylon layer on the outer surface of the aluminum-plastic film to a depth of 5-10μm. The penetrated hot melt adhesive firmly bonds to the micropores of the aluminum layer and nylon layer within the aluminum-plastic film. After cooling and solidification, a physical riveting structure is formed, providing mechanical anchoring force to the aluminum-plastic film. This increases the peel strength of the polypropylene heat-sealed interface between the aluminum-plastic films from 2.3N / mm in traditional processes to ≥8.5N / mm. The polypropylene bonding strength of aluminum-plastic film is increased by more than 3 times.

[0119] Fourth, edge cutting and waterproof adhesive protection.

[0120] The outermost edge of the heat-sealing tape fold 31 is laser-cut to remove excess edge material, so that the outermost edge of this side is flush with the top surface (the top surface composed of length and width) of the aluminum-plastic film shell 1, and the flatness of the cut end face is ±5μm.

[0121] A silicone-based waterproof adhesive (such as, but not limited to, a silicone-modified epoxy resin layer, which is preferred) is sprayed at a 30° angle onto the cut end face, with a thickness of ≥20μm. During spraying, the waterproof adhesive layer is not only evenly distributed on the cut end face, but also extends further to the outward surface of the heat-sealing tape fold 31 to form a waterproof adhesive extension edging. The waterproof adhesive extension edging at least partially covers the overflow area of ​​the hot melt adhesive layer on the outward surface of the heat-sealing tape fold 31, forming a double-adhesive overlap area.

[0122] Preferably, the waterproof adhesive extends to fully cover the overflow area of ​​the hot melt adhesive layer on the outward-facing surface of the heat-sealing tape fold 31, further increasing the area of ​​the double adhesive overlap area and further improving the blocking of the water vapor-aluminum layer contact path.

[0123] It should be noted that in this embodiment, hot melt adhesive must first be applied and the edges folded and pressed to ensure that the heat-sealing tape folded edge 31 is tightly attached to the cavity where the annular battery body is located, so that a complete base waterproof adhesive can be provided for the next step of cutting the edge to completely cover the cross section.

[0124] If the hot melt adhesive is omitted, the gap between the heat-sealing tape fold 31 and the chamber will cause unevenness on the cut end face. The waterproof adhesive applied in the subsequent process cannot effectively cover the aluminum layer. Experiments have shown that even after applying a waterproof adhesive layer to the cut end face of the heat-sealing tape fold 31 without hot melt adhesive, the exposed area of ​​the aluminum layer on the cut end face is still >40%. Furthermore, the heat-sealing tape fold 31 without hot melt adhesive has micro-gaps (>10μm). Due to its viscosity limitations, the waterproof adhesive cannot fill these micro-gaps, resulting in poor waterproof and anti-corrosion effects.

[0125] In summary, the initial folding and pressing not only provides rigid support for the cut edges, but also creates an anchoring base for the subsequent extension of the waterproof adhesive edge wrapping through the formation of the hot melt adhesive overflow area (0.1-0.15mm wide). This sequence is the cornerstone of the process for solving the "three difficulties in sealing thin batteries" (small space + high sealing + low cost).

[0126] UV curing, strength 800mW / cm², wavelength 365nm, exposure 3s; Post-curing: Curing at room temperature for 20-30 minutes to achieve deep cross-linking between the two adhesive layers and enhance the bonding strength between them.

[0127] The applicant used the soft-pack lithium-ion battery using only hot melt adhesive as a control group, as shown in CN220873703U1, to test the water vapor permeability in an 85℃ / 85%RH environment. The water vapor permeability of the control group was still 1.2 g / m² / day, while the water vapor permeability of the battery using the dual-adhesive protection scheme of this embodiment can be reduced to 0.3 g / m² / day, a reduction of 1 / 4 of the original permeability, achieving significant progress. It is evident that the performance of the battery using the scheme of this embodiment is significantly improved.

[0128] The following comparative experiments demonstrate the effectiveness of the double-layer adhesive heat-sealing tape folding edge 31 of the present invention.

[0129] 1. Water vapor barrier performance test (tested at 85℃ / 85%RH).

[0130] Test method: Perform airtightness testing according to GB / T31485-2015, helium leak detection rate ≤1×10⁻ 8 The Pa·m³ / s is acceptable. The experimental results are as follows: Edge banding process Average leakage rate (Pa·m³ / s) Storage failure rate after 500 hours Traditional folding process <![CDATA[3.2×10⁻ 7 ]]> 38% Flattening process <![CDATA[1.5×10⁻ 7 ]]> 22% The hot melt adhesive folding and pressing method of the present invention provides a waterproof layer that fully covers the cut end face, extends to the outward surface of the heat-sealing tape fold 31, exceeding the width by 0.2 mm, and fully covers the hot melt adhesive overflow area. <![CDATA[5.3×10⁻ 9 ]]> 0% .

[0131] As can be seen from the above, the application of hot melt adhesive and waterproof adhesive is not a simple superposition of technical effects. By using the hot melt adhesive of the present invention in this embodiment for edge pressing, the waterproof layer fully covers the cut end face, extends to the surface of the heat-sealing tape fold 31 facing outward, and exceeds the width by more than or equal to 0.2mm, and fully covers the hot melt adhesive overflow area, achieving an unexpected effect of 1+1>2.

[0132] It should be noted that, in the course of the research, the present invention found that the extension width of the waterproof layer is 0.2 mm, which is the critical value for blocking capillary penetration. When the extension width is ≤0.2 mm, the water vapor permeability increases sharply, and the capillary penetration blocking fails.

[0133] As an illustration of this embodiment, when a rigid annular shell made of metal material is used, the annular shell includes: a pre-stamped annular outer shell 4 and a cover plate assembly. The stamping head is annular in shape matching the structure of the annular battery body, and an annular cavity is formed by stamping on a metal plate. The bottom and top openings of the annular cavity are consistent with the shape of the stamping head.

[0134] The cover assembly includes an outer metal cover plate 41, an inner metal cover plate 42, and an insulating component. The inner metal cover plate 42 is sealed and fixed in the pole hole of the outer metal cover plate 41 by the insulating component. The insulating component is spaced between the outer metal cover plate 41 and the inner metal cover plate 42 to provide insulation spacing and sealing fit between the two.

[0135] The outer contour of the metal cover 41 matches the top opening of the annular cavity. The metal cover 41 is sealed to the annular outer shell 4 by laser welding (or ultrasonic welding or sealing ring riveting, etc.). The toroidal battery body and electrolyte are sealed within the annular cavity of the annular outer casing 4. The two tabs of the toroidal battery body are electrically connected to the inner wall of the annular outer casing 4 or the inner end face of the metal cover outer plate 41 and the metal cover inner plate 42, respectively. The annular outer casing 4 and the metal cover outer plate 41 serve as either the positive or negative electrode of the toroidal lithium-ion battery 3 in this embodiment, while the metal cover inner plate 42 serves as the other positive or negative electrode of the toroidal lithium-ion battery 3. The rigid annular casing design provides high mechanical strength and good resistance to compression.

[0136] See Figures 13-14As illustrated in this embodiment, another implementation method is also provided: the battery consists of two identical 180-degree arc-shaped battery units 8 connected in parallel (or in series) by wires, forming a complete ring-shaped battery, which functions equivalently to a one-piece ring-shaped battery. Its encapsulation structure can be an aluminum-plastic film shell or a rigid ring-shaped shell, as described above. This embodiment uses two identical 180-degree arc-shaped battery units 8 to form a ring-shaped battery as an example, but it is not limited to this. Similarly, three 120-degree or four 90-degree identical arc-shaped battery units 8 can be combined to form a complete ring-shaped battery.

[0137] Electrical connections between battery cells can be made, but are not limited to, using tab welding, wires, FPCs, or terminal blocks.

[0138] See Figure 1 , 14 As shown in Figure 16, in practical applications, a pair of smart glasses typically has two frames 1, left and right. Each frame 1 has a ring-shaped battery housing 11 formed within its peripheral frame. A ring-shaped lithium-ion battery 3, prepared according to any of the above embodiments, is embedded within this ring-shaped battery housing 11. The two batteries can be electrically connected (in series or parallel, preferably parallel) via electrical connectors 5 within the lens bridge 9, and connected together to the motherboard via wires or an FPC to power modules such as the lens display, processor, sensors, and speakers; alternatively, the left and right ring-shaped batteries can be independent, each powering different modules in different electronic circuits. The symmetrical layout of the left and right frames 1 in this embodiment achieves optimal gravity distribution, improving the user's wearing comfort.

[0139] The following example illustrates the use of ring-shaped lithium-ion batteries 3 installed in the left and right frames 1 of a mainstream AR glasses. Compared to the traditional square battery (100mAh capacity) in the temples 6, the present invention (total capacity 145mAh) significantly increases the battery life from 2.1 hours to 3.0 hours, an improvement of 42.9%, while maintaining the same overall frame volume. This improvement in battery life is not achieved through slow improvements in electrochemical materials, but rather through a revolutionary structural design, far exceeding the reasonable expectations of those skilled in the art.

[0140] Furthermore, the smart glasses using the dual-frame symmetrical battery design of this invention have a left-right weight difference of only 1.2 grams, while the traditional single-temple 6-battery solution has a left-right weight difference as high as 8.5 grams. This balanced weight distribution brings a revolutionary improvement in comfort, solving the persistent problem of long-term wear.

[0141] In addition, this invention liberates the design of the temples 6, allowing them to become slimmer and more stylish, while giving the frame 1 greater design freedom (round, elliptical, polygonal), achieving a unity of aesthetics and functionality, which has huge commercial success potential.

[0142] In addition, the inner and outer ring contours of the ring battery can be customized according to the specific shape of the frame 1, such as rectangular rounded corners, cat's eye shape, circle, oval, or polygon composed of three or more sides, such as triangle, rectangle, pentagon, hexagon, or other regular or irregular polygons that adapt to the aesthetic design of the frame 1, so that it can become part of the industrial design while meeting electrical performance requirements.

[0143] Although the above embodiments use smart glasses as an example, the innovative structure of this ring battery is also applicable to any electronic product that requires a ring power supply solution, such as smart helmets, ring lights, and special medical devices.

[0144] To further illustrate the beneficial effects of the present invention with experimental data.

[0145] Example 1: Realization of aluminum-plastic film soft-pack toroidal battery.

[0146] This embodiment uses aluminum-plastic film as the encapsulation material. The manufacturing process is as follows: Fabrication of ring electrode assembly: The ring electrode assembly, including a ring positive electrode, a separator, and a ring negative electrode, is fabricated using a winding or stacking process; Punching: A ring-shaped recess is punched into the bottom aluminum-plastic film; Insertion: Place the ring electrode assembly into the recess; Electrolyte injection: Injecting electrolyte; Heat sealing: Cover with a top layer of aluminum-plastic film and heat seal to form an inner heat-sealing strip and an outer heat-sealing strip; Folding treatment 31: Fold up the outer heat-sealing tape, apply hot melt adhesive and press it to bond to the outer side of the battery; Trimming: Trim the edges of the folded heat-sealed tape; Apply waterproof adhesive: Apply a layer of waterproof adhesive to the cut end face; Formulation and capacity testing: This completes the activation process of the battery.

[0147] The toroidal battery produced by this solution has an energy density of over 220Wh / L and a cycle life of over 500 cycles (with a capacity retention rate of 80%), fully meeting the needs of smart glasses.

[0148] Example 2: Realization of a steel-cased toroidal battery.

[0149] This embodiment uses metal (such as stainless steel) as the outer shell. Its manufacturing process is as follows: Preparation of the ring electrode assembly: Same as in Example 1; Shell preparation: The annular shell 4 with an opening is prepared by stamping process; Inserting into the housing: Placing the electrode assembly inside the housing; Electrolyte injection: Injecting electrolyte; Welding and sealing: The cover assembly is sealed to the housing by laser welding; Formulation and capacity testing: This completes the activation process of the battery.

[0150] The steel shell design offers higher mechanical strength and a higher safety factor. It can achieve a complete seal through laser welding and has passed safety tests such as drop and crush tests.

[0151] Example 3: Implementation of a combined toroidal battery.

[0152] This example uses 180-degree curved pouch cells connected in parallel with wires. This approach reduces the manufacturing difficulty of one-time molding of toroidal cells.

[0153] Experimental data supports this: Tests show that the two half-cell units have good consistency, and the overall performance after combination is comparable to that of an integrated battery, with a capacity error of less than 2%.

[0154] Example 4: Smart glasses assembly example.

[0155] The process of assembling the toroidal lithium-ion battery 3 prepared in Example 1 or 2 into smart glasses is as follows: Processing the battery cavity: A ring-shaped battery body receiving cavity 11 is formed inside the peripheral frame of the smart glasses frame 1; Battery insertion: The two annular batteries prepared in Example 1 are respectively embedded into the left and right annular battery body receiving cavities 11 of the custom-designed smart glasses frame 1; Electrical connection: The batteries in the left and right frames 1 are connected in parallel through the wires in the lens bridge 9. The positive and negative terminals of the batteries are connected to the power circuit of the smart glasses by welding or connectors to power the display, calculation and sensing modules of the glasses. Testing: Conduct functional testing and reliability verification.

[0156] Comparative experiment: Control group (Type A): A certain model of smart glasses on the market, using a 6-square battery (100mAh) on the temples. Experimental Group (Type B): With the same external dimensions, display module, and main chip power consumption, it adopts the smart glasses structure shown in Embodiment 4 of this invention, and the total battery capacity is 145mAh.

[0157] Battery life test results were obtained under standard testing conditions (screen brightness 300 nits, looping AR video playback). The results are as follows: Test metrics Option A (Traditional Solution) Type B (This Invention) Increase Battery life 2.1 hours 3.0 hours 42.9% Volumetric energy density 340Wh / L 382Wh / L 12.4% .

[0158] A counterweight test was conducted using a precision electronic scale, and a blind user experience satisfaction test was performed by a group of 30 people. The test results are as follows: Test metrics Option A (Traditional Solution) Type B (This Invention) Left and right weight difference 8.5 grams 1.2 grams User experience satisfaction 65% 93% .

[0159] As an illustration of this embodiment, this example also provides a lithium-ion battery with a ring structure formed by connecting two semi-circular pouch battery cells in parallel via wires. This solution reduces the manufacturing difficulty of a one-time ring molding process. Experimental tests show that the two semi-circular battery cells 8 have good consistency, and the overall performance after combination is comparable to that of a one-piece battery, with a capacity error of less than 2%.

[0160] It should be noted that the two semi-circular arc-shaped battery units 8 in this embodiment form a ring structure as an illustration, but the actual structure is not limited to this. For example, but not limited to, three or four or more arc-shaped battery units with good consistency can be used to form the ring structure.

[0161] The embodiments described above do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the above embodiments should be included within the scope of protection of this technical solution.

Claims

1. A power supply system for smart glasses, comprising a frame and temples hinged to both sides of the frame, characterized in that, The temples of the glasses are equipped with ear hooks for attaching to the ears. The frame is a hollow annular structure, and a ring-shaped lithium-ion battery is built into the annular cavity formed inside the frame. A cavity is provided inside the ear hook, and a button-type lithium-ion battery is placed inside the cavity. The toroidal lithium-ion battery and the button-type lithium-ion battery are electrically connected through built-in wires or flexible circuit boards, forming a distributed power supply system to power the power module of the smart glasses.

2. The power supply system for smart glasses according to claim 1, characterized in that, The temple and the frame are respectively provided with pluggable electrical connection parts, and the temple and the frame are pluggable.

3. The power supply system for smart glasses according to claim 2, characterized in that, The temple of the eyeglass is also equipped with a lithium-ion battery, which is electrically connected to the distributed power supply system.

4. The power supply system for smart glasses according to claim 3, characterized in that, The lithium-ion battery is disposed within a cavity formed in the temple near the front end of the frame.

5. The power supply system for smart glasses according to claim 3, characterized in that, The ear hook and the temple of the glasses are respectively provided with pluggable electrical connection parts, and the ear hook and the temple of the glasses are pluggable.

6. The power supply system for smart glasses according to claim 5, characterized in that, Each pluggable electrical connection part includes: Any of the following: magnetic adsorption contacts, spring pin connectors, or metal spring contacts.

7. The power supply system for smart glasses according to claim 5, characterized in that, It includes at least three temples, one of which is for replacement.

8. The power supply system for smart glasses according to claim 5, characterized in that, Includes at least three of the ear hooks, one of which is provided for replacement.

9. The power supply system for smart glasses according to claim 3, characterized in that, The lithium-ion batteries in the distributed power supply system are connected in parallel; or... In the distributed power supply system, one or at least two of the batteries individually power the power modules of the smart glasses.

10. A type of smart glasses, characterized in that, The device includes a power module and a power supply system for smart glasses as described in any one of claims 1 to 25, wherein the power supply system is electrically connected to the power module and supplies power to the power module.

Images