Production process of ring-shaped wearable parts and smart rings

Abstract

The present invention discloses a production process of an annular wearable part and a smart ring, the production process includes providing a basic element, pre-treating the inner surface of the installation cavity; controlling the temperature of the outer annular shell at a first preset temperature, and controlling the temperature of the inner annular shell at a second preset temperature, wherein the first preset temperature is higher than the second preset temperature; injecting a pre-prepared thermosetting plastic material into the installation cavity at a predetermined rate, and after the thermosetting plastic material is injected, applying a micro-vibration with an amplitude not exceeding 0.5 mm to the basic element under the condition that the temperature of the outer annular shell is maintained at the first preset temperature and the temperature of the inner annular shell is maintained at the second preset temperature, and the micro-vibration lasts for a preset time; raising the basic element to a third preset temperature to solidify the thermosetting plastic material; cooling the basic element to room temperature, and encapsulating the basic element. The technical solution of the present invention can eliminate the thermosetting plastic material that can evenly fill the space between the optical sensor and the light-transmitting window.

Description

Technical Field

[0001] The present invention relates to the technical field of smart rings, and in particular to a production process of a ring-shaped wearable component and a smart ring. Background Art

[0002] With the rapid development of wearable technology, smart devices are gradually evolving towards miniaturization, portability and multifunctionality. Under this trend, ring-shaped wearable products such as smart rings, earrings and bracelets have emerged, which combine the beauty of traditional accessories with advanced electronic technology to provide users with multiple functions such as health monitoring and identity authentication. To achieve these functions, various electronic components such as optical sensors, processors and batteries need to be integrated into the inner cavity of wearable products.

[0003] In order to protect these delicate electronic components and ensure the normal operation of wearable products, it is necessary to fill the inner cavity of the product with plastic materials. After the plastic materials are solidified and formed, they can effectively connect the product shell and electronic components together to achieve protection functions such as fixing electronic components, waterproofing, dustproofing and shockproofing. However, during the plastic molding process, bubbles often appear inside. These bubbles may be located between the optical sensor and the light-transmitting window. The bubbles will cause light scattering or reflection, thereby affecting the accuracy and sensitivity of the optical sensor. Summary of the invention

[0004] The main purpose of the present invention is to solve the technical problem that bubbles exist in the thermosetting plastic material between the optical sensor and the light-transmitting window of the existing smart ring, resulting in reduced accuracy and sensitivity of the optical sensor.

[0005] A first aspect of the present invention provides a production process for an annular wearable component, the production process for the annular wearable component comprising:

[0006] S1, providing a basic element, the basic element comprising an outer annular shell and an inner annular shell, a mounting cavity being formed between the outer annular shell and the inner annular shell, an electronic component being arranged in the mounting cavity, and a light-transmitting window being arranged at a position on the inner annular shell corresponding to an optical sensor of the electronic component;

[0007] S2, pre-treating the inner surface of the installation cavity to enhance the adhesion of the thermosetting plastic material;

[0008] S3, controlling the temperature of the outer annular shell to a first preset temperature, and controlling the temperature of the inner annular shell to a second preset temperature, wherein the first preset temperature is higher than the second preset temperature, and the first preset temperature is lower than a curing start temperature of the thermosetting plastic material;

[0009] S4, injecting a pre-mixed thermosetting plastic material into the installation cavity at a predetermined rate, and after the thermosetting plastic material is injected, applying micro-vibration with an amplitude not exceeding 0.5 mm to the base element under the condition that the temperature of the outer annular shell is maintained at the first preset temperature and the temperature of the inner annular shell is maintained at the second preset temperature, and continuing the micro-vibration for a preset time;

[0010] S5, raising the temperature of the entire base element to a third preset temperature to solidify the thermosetting plastic material;

[0011] S6, cooling the basic element to room temperature and packaging the basic element.

[0012] Optionally, before the pre-mixed thermosetting plastic material is injected into the installation cavity, the temperature of the pre-mixed thermosetting plastic material is controlled at a fourth preset temperature, and the value of the fourth preset temperature is an average value of the first preset temperature and the second preset temperature.

[0013] Optionally, an installation gap is formed between the sensor of the electronic component and the light-transmitting window;

[0014] The S4 comprises:

[0015] S4.1, injecting a thermosetting plastic material having a temperature of a fourth preset temperature from the installation gap at an injection rate of 0.01-0.1 ml / s. During the injection process, applying ultrasonic waves to the thermosetting plastic material in the installation cavity using an ultrasonic probe, and the duration of the ultrasonic waves is the same as the injection time of the thermosetting plastic material;

[0016] S4.2, after the thermosetting plastic material is injected, under the condition that the temperature of the outer annular shell is maintained at the first preset temperature and the temperature of the inner annular shell is maintained at the second preset temperature, vibration with an amplitude of 0.05-0.2mm and a frequency of 30-50Hz is applied to the base element for 30-90 seconds.

[0017] Optionally, the process of using an ultrasonic probe in S4.1 includes:

[0018] Use an ultrasonic probe with a frequency of 15-25kHz and a power of 10-30W;

[0019] Placing the ultrasonic probe outside the light-transmitting window so that a distance is maintained between the active end of the ultrasonic probe and the outer surface of the light-transmitting window;

[0020] The ultrasonic probe is controlled to move in a circular motion along the outer edge of the light-transmitting window.

[0021] Optionally, the S5 includes:

[0022] The base element is uniformly raised to 60-80°C at a rate of 1-2°C / min and maintained for 60-90 minutes to solidify the thermosetting plastic material. During this period, a slight vibration of 0.05-0.1mm with a duration of 3-5 seconds is applied to the base element every 15-20 minutes.

[0023] Optionally, cooling the base element to room temperature comprises:

[0024] The temperature of the base element is slowly reduced at a rate of 0.5-1°C / min; when the temperature is reduced to 15-20°C lower than the third preset temperature, the temperature is maintained for 30-45 minutes to complete the post-curing process of the thermosetting plastic material, and then the temperature is continued to be reduced to room temperature at the same rate.

[0025] A second aspect of the present invention provides a smart ring, comprising:

[0026] A basic element, the basic element comprising an outer annular shell, an inner annular shell, a bottom ring, a face ring and a face cover, the outer annular shell and the inner annular shell are arranged opposite to each other, the bottom periphery of the outer annular shell is connected to the bottom periphery of the inner annular shell through the bottom ring, the top periphery of the outer annular shell is connected to the face ring, the outer annular shell, the inner annular shell, the bottom ring and the face ring jointly define a mounting cavity, an opening communicating with the mounting cavity is formed between the face ring and the top periphery of the inner annular shell, the face cover is arranged on the opening, and a light-transmitting window is arranged on the inner annular shell;

[0027] An electronic component is disposed in the installation cavity, wherein the electronic component comprises an optical sensor, and the optical sensor is disposed opposite to the light-transmitting window;

[0028] The filler is formed by curing a thermosetting plastic material, and the filler is filled in the installation cavity.

[0029] Optionally, the inner annular shell is made of plastic or titanium; and / or,

[0030] The outer annular shell is made of at least one of titanium, gold, K gold, pure silver or jade; and / or,

[0031] The material of the bottom ring is at least one of titanium, gold, K gold, pure silver or jade; and / or,

[0032] The material of the face ring is at least one of titanium, gold, K gold, pure silver or jade; and / or,

[0033] The material of the face cover is at least one of titanium, gold, K gold, pure silver or jade.

[0034] Optionally, the electronic components include a circuit board and a battery;

[0035] The optical sensor is arranged on the circuit board;

[0036] The circuit board is electrically connected to the battery;

[0037] The circuit board and the battery are respectively arranged at two positions 180 degrees apart in the circumferential direction in the installation cavity, so that the weight distribution of the smart ring is balanced.

[0038] Optionally, a charging interface is provided on the inner annular shell, and the electronic component includes a charging component which is arranged in the installation cavity and is electrically connected to the battery and the circuit board respectively, and the charging component is exposed through the charging interface.

[0039] The production process of the annular wearable part of the present invention effectively solves the core problems of uneven filling of thermosetting plastic material between the optical sensor and the light-transmitting window and difficulty in removing bubbles through a clever temperature gradient design. The key to the process is to create a gradient in which the temperature of the outer annular shell is higher than the temperature of the inner annular shell. This design plays an important role in solving the problem: first, the temperature gradient causes the thermosetting plastic material to flow directional from the external high-temperature area (outer annular shell) to the internal low-temperature area (inner annular shell, including the area between the optical sensor and the light-transmitting window). This flow ensures that the thermosetting plastic material is evenly filled in the area between the optical sensor and the light-transmitting window. More importantly, during this flow process, most of the bubbles will be pushed to the high-temperature area or the surface of the thermosetting plastic material. This is because in the high-temperature area, the viscosity of the thermosetting plastic material is lower, and bubbles are easier to move and escape.

[0040] Secondly, when the thermosetting plastic material reaches the low-temperature area between the optical sensor and the light-transmitting window, its viscosity increases significantly. This high viscosity state plays a key protective role: on the one hand, it prevents new bubbles from forming or entering this area; on the other hand, it maintains the uniform distribution state that has been achieved and prevents the thermosetting plastic material from flowing over a large area. In fact, this high viscosity state "locks" a nearly bubble-free thermosetting plastic material state in the area between the optical sensor and the light-transmitting window.

[0041] On the basis of temperature gradient control, the present invention also introduces micro-vibration technology to further enhance the effect of bubble removal. The application of micro-vibration mainly solves two problems: one is to help break and eliminate residual micro-bubbles, and the other is to promote the further uniform distribution of thermosetting plastic materials on a microscopic scale. Specifically, the mechanical energy generated by micro-vibration can effectively break the micro-bubbles that may remain between the optical sensor and the light-transmitting window without causing the thermosetting plastic material to flow over a large range. This is particularly important because in this critical area, due to the high viscosity of the thermosetting plastic material (affected by the temperature gradient), the conventional bubble removal method has limited effect. The additional energy provided by micro-vibration can overcome the resistance of the high-viscosity thermosetting plastic material, prompting the micro-bubbles to merge or move to the surface of the thermosetting plastic material, so that they are effectively removed. At the same time, micro-vibration can also promote the redistribution of thermosetting plastic materials on a microscopic scale, fill in the possible tiny gaps, and further improve the uniformity of filling. This combined method of temperature gradient and micro-vibration is suitable for precisely controlling the distribution of thermosetting plastic materials and the removal of bubbles in the tiny space inside the annular wearable device, effectively solving technical problems that are difficult to overcome in traditional processes and significantly improving the performance and long-term stability of optical sensors. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0043] Figure 1 is a flow chart of the production process of the annular wearable component of the present invention;

[0044] Figure 2 for Figure 1 Flow chart of step S4;

[0045] Figure 3 It is a cross-sectional schematic diagram of an embodiment of a smart ring of the present invention.

[0046] Description of Figure Numbers:

[0047] 1. Basic components; 11. Outer annular shell; 12. Inner annular shell; 121. Light-transmitting window; 122. Charging port; 13. Bottom ring; 14. Surface ring; 15. Surface cover; 16. Mounting cavity; 2. Electronic components; 21. Optical sensor; 22. Circuit board; 23. Battery; 24. Charging component; 3. Filler.

[0048] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0051] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, which must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0052] An embodiment of the present application provides a production process for a ring-shaped wearable component. Figure 1 A flow chart of a production process of a ring-shaped wearable component provided in one embodiment of the present application.

[0053] See also Figure 1 , the production process of the ring-shaped wearable part includes:

[0054] S1, providing a basic element, the basic element comprising an outer annular shell and an inner annular shell, a mounting cavity being formed between the outer annular shell and the inner annular shell, an electronic component being arranged in the mounting cavity, and a light-transmitting window being arranged at a position on the inner annular shell corresponding to an optical sensor of the electronic component;

[0055] Specifically, the outer annular shell and the inner annular shell are the main structures of the annular wearable part, and the two can be made of different materials. For example, the outer annular shell can be made of materials such as titanium, gold, K gold, pure silver or jade, which not only have good strength and durability, but also meet the aesthetic needs of the wearer. The inner annular shell is usually made of plastic material because plastic has good processing performance and electrical insulation, which is conducive to the installation and protection of electronic components. In addition, the inner annular shell can also be made of titanium metal material, which is insulated through process technology to support the hardness and non-deformation advantages of the filler. The mounting cavity between the outer annular shell and the inner annular shell is used to accommodate electronic components. Electronic components include but are not limited to optical sensors, circuit boards, charging components and batteries. Among them, the optical sensor is a key component for realizing the health monitoring function and is usually installed near the inner annular shell. In order to ensure that the optical sensor can accurately detect the wearer's physiological signals, a light-transmitting window corresponding to the position of the optical sensor needs to be set on the inner annular shell. This light-transmitting window is usually made of transparent materials, such as optical grade plastics or glass, to ensure that the light signal can pass through without obstacles. In the actual production process, the inner annular shell can first be made into a basic shape by injection molding, and then a light-transmitting window is opened at the corresponding position, and finally the transparent material is fixed at the window position.

[0056] The assembly of the outer ring shell and the inner ring shell requires precise craftsmanship. Specifically, first, glue the bottom periphery of the inner ring shell and the bottom ring together, then wrap the circuit board, charging components and battery inside the inner ring shell, and then wrap it with insulating tape to fix the circuit board and battery inside the cavity of the inner ring shell. Fix the top periphery of the outer ring shell and the face ring together by interference fit, and add an appropriate amount of sealant to strengthen the fixation. Finally, fix the bottom periphery of the outer ring shell and the bottom ring together by interference fit.

[0057] Please continue reading Figure 1 , S2, pre-treating the inner surface of the installation cavity to enhance the adhesion of the thermosetting plastic material;

[0058] Specifically, in the embodiments of the present application, the thermosetting plastic material is preferably an epoxy resin. Of course, in other embodiments, it may also be one or a combination of phenolic resin, polyurethane resin, unsaturated polyester resin, silicone resin, melamine formaldehyde resin, and alkyd resin. These materials exhibit good fluidity and plasticity during the injection and molding stages, and can accurately fill tiny spaces. After curing, they have excellent mechanical strength, weather resistance and electrical insulation.

[0059] Pre-treating the inner surface of the mounting cavity is a key step to ensure good adhesion of thermosetting plastic materials. This process begins with a thorough cleaning of the inner surface of the mounting cavity to remove all contaminants and impurities that may affect the adhesion of thermosetting plastic materials. Cleaning agents such as isopropyl alcohol or ethanol can be used in conjunction with ultrasonic cleaning technology to ensure thorough cleaning. After cleaning, the inner surface of the mounting cavity needs to be dried, using dust-free nitrogen purge or vacuum drying technology to remove residual moisture and solvents.

[0060] Next, the cleaned and dried surface is physically or chemically treated to increase surface roughness and activity. Physical treatment methods include micro-sandblasting or plasma treatment. For example, micro-sandblasting with fine aluminum oxide powder can form a microscopic concave-convex structure on the surface, increasing the mechanical locking force of the thermosetting plastic material. Plasma treatment can generate active groups on the surface, increase the surface energy, and thus enhance the chemical adhesion of the thermosetting plastic material. For chemical treatment methods, silane coupling agents can be considered, which can form a layer of molecular bridges on the surface of metals or plastics, one end of which is bonded to the substrate and the other end is bonded to the thermosetting plastic material, significantly improving the interfacial bonding strength.

[0061] During the treatment process, special attention needs to be paid to controlling the treatment parameters, such as the power and time of plasma treatment, or the concentration and action time of silane coupling agents, to ensure the consistency and repeatability of the treatment effect. For ring-shaped wearables, the treatment process also needs to take into account the characteristics of different materials. For example, different pretreatment methods may be required for the metal outer ring shell and the plastic inner ring shell. Metal surfaces may be more suitable for micro-sandblasting or acid etching, while plastic surfaces may be more suitable for plasma treatment or chemical activation.

[0062] Please continue reading Figure 1 , S3, controlling the temperature of the outer annular shell at a first preset temperature, and controlling the temperature of the inner annular shell at a second preset temperature, wherein the first preset temperature is higher than the second preset temperature, and the first preset temperature is lower than the curing starting temperature of the thermosetting plastic material;

[0063] Specifically, the specific values ​​of the first preset temperature and the second preset temperature need to be determined according to the characteristics of the thermosetting plastic material used. Generally, the curing starting temperature of thermosetting plastic materials (such as epoxy resin) is between 60°C and 80°C, so the first preset temperature should be lower than this range to avoid premature curing of the thermosetting plastic material during the injection process. Taking this into account, in this embodiment, the first preset temperature is set between 45°C and 55°C. This temperature range can ensure that the thermosetting plastic material has good fluidity and will not trigger a curing reaction.

[0064] For the second preset temperature, it is necessary to consider that the inner annular shell is made of plastic material, and the temperature cannot be too high so as not to affect the structural stability of the plastic. At the same time, the second preset temperature also needs to maintain a certain temperature difference with the first preset temperature to create conditions that are conducive to the directional flow of thermosetting plastic materials. Based on these considerations, the second preset temperature is set between 30°C and 40°C. This temperature range can not only ensure the stability of the inner annular shell material, but also form a temperature difference of 10°C to 20°C with the outer annular shell.

[0065] To achieve this precise temperature control, a heating and cooling system is required. For the outer ring shell, resistance heating or infrared heating technology can be used, which can quickly and evenly heat the outer ring shell to the required temperature. For example, a circle of micro-resistance heating wire can be installed on the outside of the outer ring shell, and the heating intensity can be adjusted by precisely controlled current. At the same time, multiple temperature sensors need to be installed on the outer ring shell to monitor the temperature distribution in real time to ensure that the temperature of the entire outer ring shell is uniform.

[0066] For the temperature control of the inner annular shell, a liquid cooling system may be considered. The liquid cooling system adjusts the temperature of the inner annular shell by controlling the temperature and flow rate of the coolant.

[0067] Please continue reading Figure 1 S4, injecting a pre-mixed thermosetting plastic material into the installation cavity at a predetermined rate, and after the thermosetting plastic material is injected, under the condition that the temperature of the outer annular shell is maintained at the first preset temperature and the temperature of the inner annular shell is maintained at the second preset temperature, applying micro-vibration with an amplitude not exceeding 0.5 mm to the base element, and continuing the micro-vibration for a preset time;

[0068] In one embodiment of the present invention, before the pre-mixed thermosetting plastic material is injected into the installation cavity, the temperature of the pre-mixed thermosetting plastic material is controlled at a fourth preset temperature, and the value of the fourth preset temperature is the average value of the first preset temperature and the second preset temperature.

[0069] Specifically, according to the first preset temperature (45°C to 55°C) and the second preset temperature (30°C to 40°C) mentioned above, the value range of the fourth preset temperature should be between 37.5°C and 47.5°C. For example, if the first preset temperature is 50°C and the second preset temperature is 35°C, then the fourth preset temperature should be set to 42.5°C.

[0070] The purpose of controlling the temperature of the thermosetting plastic material is mainly as follows: First, setting the temperature of the thermosetting plastic material to the average of the first preset temperature and the second preset temperature can make the thermosetting plastic material better adapt to the temperature environment in the installation cavity during the injection process. When the thermosetting plastic material enters the installation cavity from the syringe or the injection device, the thermosetting plastic material will immediately contact the outer annular shell and the inner annular shell of different temperatures. If the temperature of the thermosetting plastic material is close to the average of the two, the thermal shock can be minimized to avoid a sharp change in the viscosity of the thermosetting plastic material or local solidification caused by a sudden change in temperature.

[0071] Secondly, this temperature setting helps maintain the temperature gradient throughout the injection process. Since the temperature of the thermosetting plastic material is between the temperature of the outer annular shell and the inner annular shell, it will not significantly change the original temperature distribution after entering the installation cavity. This ensures a continuous temperature gradient from the outer annular shell to the inner annular shell, which is conducive to the directional flow and uniform distribution of the thermosetting plastic material. For example, when the thermosetting plastic material contacts the hotter outer annular shell, its viscosity will decrease slightly, which is conducive to filling the outer area; and when the thermosetting plastic material flows to the cooler inner annular shell, its viscosity will gradually increase, which helps to reduce the formation and movement of bubbles.

[0072] In addition, preheating the thermosetting plastic material to the fourth preset temperature can also improve the efficiency and controllability of the injection process. The preheated thermosetting plastic material has appropriate fluidity, and is neither difficult to inject due to too low a temperature nor solidified too quickly due to too high a temperature. This appropriate fluidity enables an operator or automated equipment to accurately control the injection speed and pressure, thereby better controlling the filling process of the thermosetting plastic material.

[0073] In one embodiment of the present invention, a mounting gap is formed between the sensor of the electronic component and the light-transmitting window;

[0074] See also Figure 2 , said S4, comprises:

[0075] S4.1, injecting a thermosetting plastic material having a temperature of a fourth preset temperature from the installation gap at an injection rate of 0.01-0.1 ml / s. During the injection process, applying ultrasonic waves to the thermosetting plastic material in the installation cavity using an ultrasonic probe, and the duration of the ultrasonic waves is the same as the injection time of the thermosetting plastic material;

[0076] S4.2, after the thermosetting plastic material is injected, under the condition that the temperature of the outer annular shell is maintained at the first preset temperature and the temperature of the inner annular shell is maintained at the second preset temperature, vibration with an amplitude of 0.05-0.2mm and a frequency of 30-50Hz is applied to the base element for 30-90 seconds.

[0077] Specifically, a thermosetting plastic material having a temperature of a fourth preset temperature is injected from the installation gap. The purpose of this process is to ensure that the thermosetting plastic material can evenly fill the entire installation cavity, especially the key area between the optical sensor and the light-transmitting window. The injection rate is controlled within the range of 0.01-0.1 ml / s to ensure sufficient filling while avoiding bubbles or uneven distribution of the thermosetting plastic material due to too fast injection. For example, if the total volume of the installation cavity is 2 ml, the complete injection process may take 20-200 seconds.

[0078] During the injection process, an ultrasonic probe is used to apply ultrasonic waves to the thermosetting plastic material in the installation cavity. The main purpose of this step is to reduce and eliminate tiny bubbles in the thermosetting plastic material through sound wave energy. The working principle of ultrasonic waves is to generate tiny cavitation bubbles in the liquid through high-frequency vibrations. When these bubbles collapse, they will generate local high temperature and high pressure, which will help break the bubbles in the thermosetting plastic material and promote their dissolution or escape. The duration of ultrasonic waves is kept consistent with the injection time of the thermosetting plastic material to ensure that bubbles can be continuously eliminated throughout the injection process, while avoiding the negative effects that may be caused by excessive use of ultrasonic waves, such as local overheating or changes in the properties of the thermosetting plastic material.

[0079] After the thermosetting plastic material is injected, vibration with specific parameters is applied to the base element. The purpose of this step is to further optimize the distribution of the thermosetting plastic material and eliminate the residual micro-bubbles. In this process, the temperature of the outer annular shell and the inner annular shell is maintained at the first preset temperature and the second preset temperature respectively, in order to maintain a temperature gradient that is conducive to the flow of the thermosetting plastic material and the elimination of bubbles. The amplitude of the vibration is set in the range of 0.05-0.2mm and the frequency is 30-50Hz. The smaller amplitude can avoid causing excessive disturbance to the already filled thermosetting plastic material, while the selected frequency range can effectively promote the movement and merging of micro-bubbles. For example, if a frequency of 40Hz is used, the thermosetting plastic material will experience 1200 tiny vibrations during the 30-second vibration process, which is enough to break the possible static balance and cause the residual bubbles to move to the surface or merge with each other. The duration is set at 30-90 seconds in order to give full play to the vibration effect while avoiding the negative effects that may be caused by long-term vibration, such as delamination of thermosetting plastic materials or displacement of components.

[0080] In one embodiment of the present invention, the process of using the ultrasonic probe in S4.1 includes:

[0081] Use an ultrasonic probe with a frequency of 15-25kHz and a power of 10-30W;

[0082] Placing the ultrasonic probe outside the light-transmitting window so that a distance is maintained between the active end of the ultrasonic probe and the outer surface of the light-transmitting window;

[0083] The ultrasonic probe is controlled to move in a circular motion along the outer edge of the light-transmitting window.

[0084] Specifically, the use of an ultrasonic probe is a key step, the purpose of which is to optimize the distribution of thermosetting plastic materials and eliminate tiny bubbles through precisely controlled ultrasonic energy, especially in the critical area between the optical sensor and the light-transmitting window. An ultrasonic probe with a frequency of 15-25kHz and a power of 10-30W is selected. This frequency range is selected because it can effectively transfer energy to thermosetting plastic materials without damaging electronic components. For example, a frequency of 20kHz means 20,000 compression and expansion cycles per second, which is enough to produce tiny cavitation bubbles in thermosetting plastic materials. These bubbles will produce local high temperature and high pressure when they collapse, which helps to break and eliminate tiny bubbles in thermosetting plastic materials. At the same time, the power range of 10-30W provides enough energy to process thermosetting plastic materials without causing excessive heat accumulation or mechanical stress.

[0085] Placing the ultrasound probe outside the light-transmitting window allows the ultrasound energy to act directly on the most critical area, namely the thermosetting plastic material filling area between the optical sensor and the light-transmitting window. By maintaining a certain distance between the active end of the ultrasound probe and the outer surface of the light-transmitting window, the effective transmission of ultrasound energy can be ensured while avoiding the damage that may be caused by direct contact. This distance is usually set between a few millimeters and one centimeter, depending on the design of the ultrasound probe and the structure of the ring-shaped wearable. For example, if the distance is set to 5mm, the ultrasound can effectively penetrate the light-transmitting window and act on the thermosetting plastic material inside without directly contacting the light-transmitting window.

[0086] The ultrasonic probe is controlled to move in a circular motion along the outer edge of the light-transmitting window. This motion pattern ensures that the ultrasonic energy is evenly distributed throughout the critical area. The speed and range of the circular motion need to be carefully adjusted to match the injection speed and viscosity of the thermosetting plastic material. For example, if the diameter of the light-transmitting window is 10mm, the ultrasonic probe may move along the outer edge of the light-transmitting window at a speed of 1-2mm per second, which can ensure that each part can be fully ultrasonically treated during the injection of the thermosetting plastic material. This dynamic treatment method is more effective than fixed-position ultrasonic treatment because it avoids the creation of "dead corners", that is, some areas are not fully treated because they are too far away from the fixed ultrasonic source.

[0087] Please continue reading Figure 1, S5, raising the temperature of the entire base element to a third preset temperature to solidify the thermosetting plastic material.

[0088] In one embodiment of the present invention, S5 includes: uniformly raising the temperature of the base element to 60-80°C at a rate of 1-2°C / min and maintaining it for 60-90 minutes to allow the thermosetting plastic material to solidify and form, during which a slight vibration of 0.05-0.1mm with a duration of 3-5 seconds is applied to the base element every 15-20 minutes.

[0089] Specifically, the third preset temperature ranges from 60°C to 80°C. The selection of this temperature range is based on the following considerations: first, it is higher than the curing starting temperature of most thermosetting plastic materials, which can promote the full cross-linking of thermosetting plastic materials to form a stable three-dimensional network structure; second, this temperature range will not have a significant impact on the plastic material of the inner annular shell, avoiding deformation or performance degradation due to overheating; finally, this temperature range is also within the safe operating temperature of most electronic components, and will not have a negative impact on the function of the ring-shaped wearable component.

[0090] Specifically in actual operation, this process can be achieved by heating up in stages. For example, the temperature can be slowly raised from the temperature at which the thermosetting plastic material is injected (i.e., the fourth preset temperature, usually between 37.5°C and 47.5°C) to 60°C at a rate of 1-2°C per minute, and maintained at this temperature for 30 minutes to allow the thermosetting plastic material to begin preliminary curing. Then the temperature is raised to 70°C at the same rate and maintained for 60 minutes. This stage can promote deeper cross-linking of the thermosetting plastic material. Finally, if a higher degree of cross-linking is required, the temperature can be further raised to 80°C and maintained for 30 minutes. This gradual heating and heat preservation process can not only ensure that the thermosetting plastic material is fully cured, but also minimize the accumulation of internal stress that may be caused by rapid temperature changes.

[0091] The heating rate of 1-2℃ / min is carefully calculated. This slow heating process ensures uniform heat distribution and avoids stress accumulation or bubble generation due to local overheating. For example, if the temperature is raised from room temperature 25℃, it takes about 22.5-45 minutes to reach 70℃, which is enough time for the entire base component to heat up evenly.

[0092] During the curing process, a slight vibration of 0.05-0.1mm lasting 3-5 seconds is applied to the base element every 15-20 minutes. This intermittent micro-vibration has multiple functions: first, it can break the local stress concentration that may form during the curing process, which helps the thermosetting plastic material to cure more evenly. Secondly, this vibration can promote the movement and elimination of residual bubbles. Finally, the micro-vibration can also fine-tune the flow of the thermosetting plastic material and fill the tiny gaps that may exist. For example, if the entire curing process lasts 75 minutes, the base element will experience 4-5 such micro-vibrations. Each vibration lasts 3-5 seconds with an amplitude of 0.05-0.1mm. This slight disturbance is enough to produce the above effects without damaging the structure of the thermosetting plastic material that has already begun to cure.

[0093] Please continue reading Figure 1 , S6, cooling the basic element to room temperature and packaging the basic element.

[0094] In one embodiment of the present invention, cooling the base element to room temperature includes: slowly reducing the temperature of the base element at a rate of 0.5-1°C / min; when the temperature is reduced to 15-20°C lower than the third preset temperature, maintaining the temperature for 30-45 minutes to complete the post-curing process of the thermosetting plastic material, and then continuing to cool to room temperature at the same rate.

[0095] Specifically, first, the temperature of the base element is slowly reduced at a rate of 0.5-1°C / min. This slow cooling rate allows the thermosetting plastic material and each component to release heat evenly and reduce the accumulation of internal stress. For example, if the third preset temperature is 80°C, the cooling target of the first stage is 60-65°C, and this process takes about 15-40 minutes.

[0096] When the temperature drops to 15-20°C lower than the third preset temperature, that is, when it reaches 60-65°C, maintain this temperature for 30-45 minutes. This stage is called the post-curing process, which is crucial to improving the final performance of the thermosetting plastic material. At this temperature, the thermosetting plastic material molecules still have a certain activity and can undergo further cross-linking reactions, but at the same time will not introduce new internal stresses. For example, if you choose to maintain 62°C for 40 minutes, this time is enough for the thermosetting plastic material to reach more than 95% of its final strength, while also allowing other components of the annular wearable piece, such as the inner annular shell and the outer annular shell, to gradually adapt to temperature changes.

[0097] After the post-curing process is completed, the temperature is continued to be cooled to room temperature at a rate of 0.5-1℃ / min. This stage can be further subdivided, for example, pausing again for 15-20 minutes when it drops to 40℃. This segmented cooling method can further reduce the accumulation of internal stress, especially considering the difference in thermal expansion coefficients of different materials inside the ring-shaped wearable (such as the metal outer ring shell and the plastic inner ring shell). By pausing at different temperature points, different materials are allowed to gradually adjust, thereby minimizing internal stress that may be caused by thermal expansion differences.

[0098] The entire cooling process usually takes 2-4 hours, which may seem long, but is crucial to ensure the long-term stability and reliability of the ring-shaped wearable. During the cooling process, a sophisticated temperature control system, such as a liquid circulation cooling system, can be used to ensure precise control of temperature changes. At the same time, a micro fan can be set in the cooling chamber to ensure uniform temperature distribution and avoid stress concentration caused by uneven local cooling.

[0099] When the base component finally cools to room temperature, a comprehensive quality inspection is required. This includes using a high-precision optical microscope to check whether the thermosetting plastic material has microcracks or delamination, especially in the critical areas around the optical sensor and light-transmitting window. In addition, X-ray inspection equipment can be used to check the integrity of the internal structure to ensure that the cooling process has not caused displacement or damage to the internal components.

[0100] Next comes the encapsulation step, which aims to protect the internal components and improve the aesthetics and durability of the product. The encapsulation process first requires cleaning the surface of the base component to remove any dust or fingerprints that may be present. Then, the pre-prepared cover is installed on the base component. The material of the cover is usually the same or similar to that of the outer ring shell to ensure the consistency of the overall appearance. When installing the cover, special attention should be paid to the sealing. Usually a thin layer of sealant is applied to the contact surface. This sealant can provide effective waterproof and dustproof properties after curing.

[0101] Another embodiment of the present application further provides a smart ring, which will be described in detail below in conjunction with the accompanying drawings.

[0102] Figure 3The cross-sectional schematic diagram of a structure of a smart ring. Specifically, the smart ring includes a basic element 1, an electronic element 2 and a filler 3. The basic element 1 includes an outer annular shell 11, an inner annular shell 12, a bottom ring 13, a face ring 14 and a face cover 15. The outer annular shell 11 and the inner annular shell 12 are arranged opposite to each other. The bottom periphery of the outer annular shell 11 is connected to the bottom periphery of the inner annular shell 12 through the bottom ring 13. The top periphery of the outer annular shell 11 is connected to the face ring 14. The outer annular shell 11, the inner annular shell 12, the bottom ring 13 and the face ring 14 jointly define a mounting cavity 16. An opening communicating with the mounting cavity 16 is formed between the face ring 14 and the top periphery of the inner annular shell 12. The face cover 15 covers the opening. A light-transmitting window 121 is provided on the inner annular shell 12.

[0103] The electronic component 2 is disposed in the installation cavity 16, and the electronic component 2 includes an optical sensor 21, and the optical sensor 21 is disposed opposite to the light-transmitting window 121;

[0104] The filler 3 is formed by curing a thermosetting plastic material, and the filler 3 is filled in the installation cavity 16 .

[0105] Specifically, the split smart ring, this design allows for more flexible material selection and a more sophisticated manufacturing process. Compared with the ring with an integrated physical structure, the smart ring of the present invention has significantly improved material compatibility. Precious metals are used on the outside to improve the appearance and durability, and plastics are used on the inside to optimize the working environment of the electronic components 2. Secondly, manufacturing flexibility is greatly enhanced, and each component can be manufactured and optimized separately. At the same time, the split structure makes it easier to repair or upgrade when necessary without replacing the entire ring. During the manufacturing process, this design allows for more precise control of the size and shape of each component, especially for the alignment of the light-transmitting window 121 and the sensor. In addition, this design provides more possibilities for personalized customization, and users can more easily replace the outer ring shell 11 of different materials or colors.

[0106] In general, this design takes into account functionality, reliability and aesthetics, providing more possibilities for mass production and personalized customization of smart rings, enabling smart rings to reach a higher level in performance, appearance and user experience.

[0107] In a specific implementation, the material of the inner annular shell 12 is plastic or titanium. The material of the outer annular shell 11 is at least one of titanium, gold, K gold, pure silver or jade. The material of the bottom ring 13 is at least one of titanium, gold, K gold, pure silver or jade. The material of the face ring 14 is at least one of titanium, gold, K gold, pure silver or jade. The material of the face cover 15 is at least one of titanium, gold, K gold, pure silver or jade.

[0108] In some embodiments, the electronic component 2 includes a circuit board 22 and a battery 23;

[0109] The optical sensor 21 is arranged on the circuit board 22;

[0110] The circuit board 22 is electrically connected to the battery 23;

[0111] The circuit board 22 and the battery 23 are respectively arranged at two positions 180 degrees apart in the circumferential direction in the installation cavity 16 to ensure a balanced weight distribution of the smart ring.

[0112] Specifically, the circuit board 22 and the battery 23 are arranged at two relative positions in the mounting cavity 16, with an angle of 180 degrees between them. This means that if the smart ring is placed flat and viewed from above, the circuit board 22 and the battery 23 will be located at two ends of a diameter.

[0113] The purpose of this design is mainly reflected in two aspects: weight distribution and wearing direction. First, from the perspective of weight distribution, the circuit board 22 and the battery 23 are usually the two heaviest components inside the smart ring. Placing them in relative positions can make the weight distribution more balanced, avoiding discomfort caused by excessive weight on one side of the ring. This balanced weight distribution can improve wearing comfort, so that users will not feel excessive pressure on one side of the finger when wearing it for a long time.

[0114] Secondly, in terms of wearing direction, this design allows the user to wear the smart ring at any angle without affecting its functionality or comfort. No matter how the ring is rotated, the weight distribution always remains balanced. This feature is particularly important because it eliminates the need for users to consider a specific wearing direction, increasing the convenience of using the product. In addition, the balanced weight distribution also helps maintain the stability of the optical sensor 21, because no matter how the ring is rotated, the sensor will not be offset or pressure changes due to uneven gravity distribution, thereby ensuring the accuracy and consistency of the measurement data.

[0115] In some embodiments, the inner annular shell 12 is provided with a charging interface 122, and the electronic component 2 includes a charging component 24 disposed in the mounting cavity 16 and electrically connected to the battery 23 and the circuit board 22, respectively, and the charging component 24 is exposed through the charging interface 122. The charging interface 122 is provided on the inner annular shell 12, and this design takes into account the convenience of user use and the aesthetics of the product. The charging interface 122 is provided on the inner annular shell 12, rather than on the outer annular shell 11, so that the appearance design of the ring can be maintained without affecting the charging function, so that the product remains beautiful and neat when not charging.

[0116] The charging component 24 is exposed through the charging interface 122, which means that the user can directly connect the charging cable to the charging interface 122 and charge the ring without disassembling or opening it. This design greatly improves the convenience of daily use of the product, and the user can easily charge the smart ring without complicated operations.

[0117] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A production process for an annular wearable component, characterized in that: include: S1, providing a basic element, the basic element comprising an outer annular shell and an inner annular shell, a mounting cavity being formed between the outer annular shell and the inner annular shell, an electronic component being arranged in the mounting cavity, and a light-transmitting window being arranged at a position on the inner annular shell corresponding to an optical sensor of the electronic component; S2, pre-treating the inner surface of the installation cavity to enhance the adhesion of the thermosetting plastic material; S3, controlling the temperature of the outer annular shell to a first preset temperature, and controlling the temperature of the inner annular shell to a second preset temperature, wherein the first preset temperature is higher than the second preset temperature, and the first preset temperature is lower than a curing start temperature of the thermosetting plastic material; S4, injecting a pre-mixed thermosetting plastic material into the installation cavity at a predetermined rate, and after the thermosetting plastic material is injected, applying micro-vibration with an amplitude not exceeding 0.5 mm to the base element under the condition that the temperature of the outer annular shell is maintained at the first preset temperature and the temperature of the inner annular shell is maintained at the second preset temperature, and continuing the micro-vibration for a preset time; Before injecting the pre-prepared thermosetting plastic material into the installation cavity, controlling the temperature of the pre-prepared thermosetting plastic material to a fourth preset temperature, wherein the value of the fourth preset temperature is an average value of the first preset temperature and the second preset temperature; An installation gap is formed between the sensor of the electronic component and the light-transmitting window; The S4 comprises: S4.1, injecting a thermosetting plastic material having a temperature of a fourth preset temperature from the installation gap at an injection rate of 0.01-0.1 ml / s. During the injection process, applying ultrasonic waves to the thermosetting plastic material in the installation cavity using an ultrasonic probe, and the duration of the ultrasonic waves is the same as the injection time of the thermosetting plastic material; S4.2, after the thermosetting plastic material is injected, under the condition that the temperature of the outer annular shell is maintained at the first preset temperature and the temperature of the inner annular shell is maintained at the second preset temperature, vibration with an amplitude of 0.05-0.2 mm and a frequency of 30-50 Hz is applied to the base element for 30-90 seconds; S5, raising the temperature of the entire base element to a third preset temperature to solidify the thermosetting plastic material; S6, cooling the basic element to room temperature and packaging the basic element.

2. The production process of the annular wearable component according to claim 1, characterized in that: S4.1 The process of using an ultrasonic probe includes: Use an ultrasonic probe with a frequency of 15-25kHz and a power of 10-30W; Placing the ultrasonic probe outside the light-transmitting window so that a distance is maintained between the active end of the ultrasonic probe and the outer surface of the light-transmitting window; The ultrasonic probe is controlled to move in a circular motion along the outer edge of the light-transmitting window.

3. The production process of the annular wearable component according to claim 1, characterized in that: The S5 comprises: The base element is uniformly raised to 60-80°C at a rate of 1-2°C / min and maintained for 60-90 minutes to solidify the thermosetting plastic material. During this period, a slight vibration of 0.05-0.1mm with a duration of 3-5 seconds is applied to the base element every 15-20 minutes.

4. The production process of the annular wearable component according to claim 1, characterized in that: The step of cooling the base element to room temperature comprises: The temperature of the base element is slowly reduced at a rate of 0.5-1°C / min; when the temperature is reduced to 15-20°C lower than the third preset temperature, the temperature is maintained for 30-45 minutes to complete the post-curing process of the thermosetting plastic material, and then the temperature is continued to be reduced to room temperature at the same rate.

5. A smart ring, characterized in that: The smart ring is manufactured by the production process of the ring-shaped wearable component according to any one of claims 1 to 4, and the smart ring comprises: A basic element (1), the basic element (1) comprising an outer annular shell (11), an inner annular shell (12), a bottom ring (13), a surface ring (14) and a surface cover (15), the outer annular shell (11) and the inner annular shell (12) being arranged opposite to each other, the bottom periphery of the outer annular shell (11) being connected to the bottom periphery of the inner annular shell (12) through the bottom ring (13), the top periphery of the outer annular shell (11) being connected to the surface ring (14), the outer annular shell (11), the inner annular shell (12), the bottom ring (13) and the surface ring (14) jointly defining a mounting cavity (16), an opening communicating with the mounting cavity (16) being formed between the surface ring (14) and the top periphery of the inner annular shell (12), the surface cover (15) being arranged to cover the opening, and a light-transmitting window (121) being provided on the inner annular shell (12); An electronic component (2), the electronic component (2) being arranged in the installation cavity (16), the electronic component (2) comprising an optical sensor (21), the optical sensor (21) being arranged opposite to the light-transmitting window (121); A filler (3), wherein the filler (3) is formed by curing a thermosetting plastic material, and the filler (3) is filled in the installation cavity (16).

6. The smart ring according to claim 5, characterized in that: The inner annular shell (12) is made of plastic or titanium; and / or, The outer annular shell (11) is made of at least one of titanium, gold, K gold, pure silver or jade; and / or, The material of the bottom ring (13) is at least one of titanium, gold, K gold, pure silver or jade; and / or, The material of the face ring (14) is at least one of titanium, gold, K gold, pure silver or jade; and / or, The material of the face cover (15) is at least one of titanium, gold, K gold, pure silver or jade.

7. The smart ring according to claim 5, characterized in that: The electronic component (2) comprises a circuit board (22) and a battery (23); The optical sensor (21) is arranged on the circuit board (22); The circuit board (22) is electrically connected to the battery (23); The circuit board (22) and the battery (23) are respectively arranged at two positions 180 degrees apart in the circumferential direction in the installation cavity (16) so that the weight distribution of the smart ring is balanced.

8. The smart ring according to claim 7, characterized in that: The inner annular shell (12) is provided with a charging interface (122), and the electronic component (2) includes a charging component (24) which is arranged in the installation cavity (16) and is electrically connected to the battery (23) and the circuit board (22) respectively, and the charging component (24) is exposed through the charging interface (122).

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