Intelligent ring

Abstract

The invention relates to the technical field of intelligent wearing, in particular to an intelligent ring which comprises a shell and a circuit board, the shell comprises an outer shell and an inner shell, the outer shell and the inner shell are connected to define a containing cavity, the circuit board is located in the containing cavity, and the two sides of the outer shell are each provided with a first fixing set; the two first fixing groups comprise a plurality of first fixing parts with the same number, and the plurality of first fixing parts of each first fixing group are arranged at intervals in the circumferential direction of the accommodating cavity; the two sides of the circuit board are each provided with a first matching group, the two first matching groups comprise a plurality of first matching parts with the same number, and the first matching parts of each first matching group are arranged at intervals in the circumferential direction of the containing cavity; and each first fixing part is fixedly matched with one first matching part. The invention mainly aims to provide the intelligent ring, and aims to ensure that the light path of the PPG module is not changed by restraining the position of the circuit board in the ring.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smart wear, in particular to a smart ring. BACKGROUND

[0002] In the current rapid development of smart wear devices, smart rings have become a product category with high market attention due to their small size, portability and high functional integration. Among them, the blood oxygen monitoring function has become an important standard function of smart rings because it can reflect the health status of the human body in real time and meet the core needs of users' daily health management and sports safety monitoring. To achieve this function, mainstream smart rings generally use PPG modules. This technology obtains human blood oxygen saturation data through non-invasive detection, without the need for invasive operations, which is suitable for the portable use scenario of smart rings and meets the user's demand for the convenience and safety of health monitoring, thus promoting the application and popularization of smart rings in the health monitoring field. The core of PPG module to achieve blood oxygen monitoring lies in the synergistic effect of the light-emitting lamp bead and the photoelectric sensor, and its working process follows a specific optical principle. Specifically, the light-emitting lamp bead emits light of a specific wavelength, and after penetrating the human skin tissue, part of the light is absorbed by hemoglobin in the blood, and the remaining unabsorbed light is reflected back to the photoelectric sensor. Due to the periodic change in blood volume in blood vessels caused by the beating of the human heart, the amount of light absorbed by the blood also fluctuates accordingly, and the photoelectric sensor can accurately capture this periodic light intensity change signal and transmit it to the backend algorithm for processing, ultimately calculating the human blood oxygen saturation and other key physiological parameters to provide accurate health data reference for users.

[0003] From the working principle of the PPG module, the path of the light emitted by the light-emitting lamp bead and the path of the reflected light received by the photoelectric sensor (i.e. the optical path) stability directly determines the accuracy of light signal capture, and thus affects the reliability of the blood oxygen monitoring result. If the light-emitting lamp bead and the photoelectric sensor are offset in position inside the smart ring, it will cause the optical path to change, which may result in problems such as the light emitted by the light-emitting lamp bead not penetrating the skin as expected, abnormal reflected light intensity received by the photoelectric sensor, or signal disorder. SUMMARY

[0004] The main purpose of the present application is to provide a smart ring, which aims to constrain the position of the circuit board in the ring, and thus ensure that the optical path of the PPG module does not change.

[0005] To achieve the above object, the intelligent ring comprises a shell and a circuit board, the shell comprises an outer shell and an inner shell, the outer shell and the inner shell are connected to form a containing cavity, the circuit board is located in the containing cavity, two sides of the outer shell are respectively provided with a first fixing group, and two first fixing groups are distributed along the axial direction of the containing cavity. Two sides of the circuit board are respectively provided with a first matching group, and two first matching groups are distributed along the axial direction of the containing cavity. Two first matching groups comprise a plurality of first matching parts of the same number, and a plurality of first matching parts of each first matching group are arranged at intervals along the circumferential direction of the containing cavity. Each first fixing part is fixedly matched with a first matching part.

[0006] In an embodiment of the present application, one first fixing part of each first fixing group is arranged corresponding to one first fixing part of another first fixing group along the axial direction of the containing cavity.

[0007] In an embodiment of the present application, each first fixing part is arranged at intervals with the outer edge of the outer shell, so that the outer edge of the outer shell forms a reserved mounting space configured for fixed matching of the inner shell and the outer shell.

[0008] In an embodiment of the present application, the circuit board comprises a first board segment, a second board segment and a third board segment arranged in sequence along the circumferential direction of the containing cavity, the first board segment is provided with a transmission light source, the second board segment is provided with a reflection light source, and the third board segment is provided with a photoelectric sensor. The photoelectric sensor is configured to receive light emitted by the transmission light source and the reflection light source.

[0009] In an embodiment of the present application, the intelligent ring is further provided with a board segment support, the board segment support is limitingly arranged in the containing cavity, the board segment support abuts against the first board segment, so that the light emitting surface of the transmission light source is arranged opposite to the light receiving surface of the photoelectric sensor.

[0010] In an embodiment of the present application, two sides of the board segment support are respectively provided with a second matching part, and two second matching parts are arranged at intervals along the axial direction of the containing cavity. Two sides of the outer shell are respectively provided with a second fixing part, each second fixing part forms a first limiting clamping groove with the adjacent first fixing part, and each second matching part is clamped in a first limiting clamping groove.

[0011] In an embodiment of the present application, the plate segment support has an abutting surface for abutting the first plate segment; the abutting surface is provided with a third fixing part, and the first plate segment is provided with a third matching part, the third fixing part fixedly matches the third matching part.

[0012] In an embodiment of the present application, the second plate segment has two first matching parts distributed along the axial direction of the accommodating cavity at the end close to the first plate segment, and the first matching parts of the second plate segment form a second limiting clamping groove with the second matching part, and one of the first fixing parts clamps one of the second limiting clamping grooves.

[0013] In an embodiment of the present application, the second plate segment has two first matching parts distributed along the axial direction of the accommodating cavity at the end away from the first plate segment, and the first plate segment close to the first plate segment has two first matching parts distributed along the axial direction of the accommodating cavity, and the first matching parts of the second plate segment form a third limiting clamping groove with the first matching parts of the third plate segment, and one of the first fixing parts clamps one of the third limiting clamping grooves.

[0014] In an embodiment of the present application, the circuit board further comprises a fourth plate segment, and the fourth plate segment is located at the end of the third plate segment away from the second plate segment. The fourth plate segment has two first matching parts distributed along the axial direction of the accommodating cavity at the end close to the first plate segment, and the third plate segment has two first matching parts distributed along the axial direction of the accommodating cavity at the end away from the first plate segment, and the first matching parts of the third plate segment form a fourth limiting clamping groove with the first matching parts of the fourth plate segment, and one of the first fixing parts clamps one of the fourth limiting clamping grooves. The fourth plate segment is configured to fix an antenna terminal, and the antenna terminal is configured to contact a finger.

[0015] In the technical solution, two first fixing groups are distributed axially along the containing cavity on two sides of the shell, each first fixing group contains a plurality of first fixing parts spaced in the circumferential direction, and two first matching groups are correspondingly arranged on two sides of the circuit board, each first matching group contains a plurality of first matching parts spaced in the circumferential direction, so that each first fixing part is fixedly matched with a first matching part, and double limiting constraints of the circuit board in the axial and circumferential directions of the containing cavity are formed in structure: in the axial direction, the cooperation of the two first fixing groups and the corresponding first matching groups can limit the displacement of the circuit board in the axial direction; in the circumferential direction, the cooperation of the plurality of first fixing parts and the first matching parts spaced in each group can limit the rotation or deviation of the circuit board in the circumferential direction, so as to firmly fix the position of the circuit board in the containing cavity. Since the light-emitting lamp beads and the photoelectric sensor of the PPG module are arranged on the circuit board, the position of the circuit board is stably fixed, so that the relative position change of the light-emitting lamp beads and the photoelectric sensor caused by the position deviation of the circuit board is avoided, thereby ensuring that the light path between the two is always stable, preventing the problem of inaccurate light signal capture caused by the change of the light path, and finally ensuring the reliability of the blood oxygen monitoring result. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0017] Figure 1 An internal structure diagram of an embodiment of the intelligent ring provided by the present application; Figure 2 A structure schematic diagram of an embodiment of the shell provided by the present application; Figure 3 A structure layout diagram of an embodiment of the circuit board provided by the present application; Figure 4 A structure explosion diagram of Figure 3 ; Figure 5 A structure layout diagram of another perspective of an embodiment of the circuit board provided by the present application; Figure 6 A structure schematic diagram of a second embodiment of the circuit board provided by the present application; Figure 7 A structure schematic diagram of a third embodiment of the circuit board provided by the present application; Figure 8 A structure schematic diagram of a fourth embodiment of the circuit board provided by the present application.

[0018] Explanation of reference numerals: 100, smart ring; 10, housing; 11, first fixing part; 12, second fixing part; 10a, first limiting slot; 20, circuit board; 21, first matching part; 201, first board segment; 22, third matching part; 202, second board segment; 203, third board segment; 204, fourth board segment; 20a, second limiting slot; 20b, third limiting slot; 20c, fourth limiting slot; 30, board segment support; 31, second matching part; 32, third fixing part; 40, PPG module; 41, transmissive light source; 42, reflective light source; 43, photoelectric sensor; 50, antenna terminal.

[0019] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments in combination with the accompanying drawings. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0021] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0022] In addition, the description of “first”, “second” and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first” and “second” can explicitly or implicitly include at least one of the features. In addition, the meaning of “and / or” appearing throughout the text includes three parallel schemes, taking “A and / or B” as an example, including A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0023] The main purpose of the present application is to provide a smart ring 100, which is designed to ensure that the optical path of the PPG module 40 will not change by restricting the position of the circuit board 20 in the ring.

[0024] To achieve the above purpose, please refer to Figure 1 、 Figure 2 、 Figure 3 The smart ring 100 includes a housing and a circuit board 20, the housing includes an outer shell 10 and an inner shell, the outer shell 10 and the inner shell are connected to form a containing cavity, the circuit board 20 is located in the containing cavity, and the two sides of the outer shell 10 are respectively provided with a first fixing group, and the two first fixing groups are distributed along the axial direction of the containing cavity; the two first fixing groups include a plurality of first fixing parts 11 of the same number, and the plurality of first fixing parts 11 of each first fixing group are arranged at intervals along the circumferential direction of the containing cavity; the two sides of the circuit board 20 are respectively provided with a first matching group, and the two first matching groups are distributed along the axial direction of the containing cavity; the two first matching groups include a plurality of first matching parts 21 of the same number, and the plurality of first matching parts 21 of each first matching group are arranged at intervals along the circumferential direction of the containing cavity; each first fixing part 11 is fixedly matched with a first matching part 21.

[0025] Specifically, because the volume of the outer shell 10 is larger than that of the circuit board 20, the inner circumferential wall of the outer shell 10 has more surface area for forming fixing structures such as protrusions, insertion arms, etc., while the circuit board 20 is thinner than the outer shell 10 and is more suitable for opening holes, grooves, etc. due to material properties. In an embodiment, the first fixing part 11 is integrally formed with the outer shell 10 by an injection molding process, and the first fixing part 11 is a protrusion structure protruding from the inner surface of the outer shell 10. Correspondingly, the first matching part 21 is a notch shape formed on the circuit board 20, and each first fixing part 11 and the first matching part 21 are fixedly matched, so that the internal space of the smart ring 100 is formed by multiple area constraints, and the circuit board 20 and the housing are prevented from loosening.

[0026] It can be understood that the light-emitting lamp beads and the photoelectric sensor 43 of the PPG module 40 are integrated on the circuit board 20, and when the position of the circuit board 20 in the smart ring 100 is restricted, the positions of the light-emitting lamp beads and the photoelectric sensor 43 are also restricted, ensuring that the optical path formed by the two is always stable, preventing the problem of inaccurate light signal capture caused by changes in the optical path, and finally ensuring the reliability of the blood oxygen monitoring result.

[0027] Please refer to Figure 6In the second embodiment, the four corners of the circuit board 20 are provided with a first matching part 21, so that the two first matching parts 21 of the same end of the circuit board 20 are distributed along the axial direction of the accommodating cavity, and the two first matching parts 21 of the same side of the circuit board 20 are distributed along the circumferential direction of the accommodating cavity. Correspondingly, the inner circumferential wall of the shell 10 is also provided with four first fixing parts 11, each first fixing part 11 is fixedly matched with a first matching part 21, so that the freedom of the circuit board 20 is constrained in the axial and circumferential directions of the accommodating cavity, so that the position deviation of the circuit board 20 relative to the shell 10 or only the tolerance deviation caused by the process can be ensured when the circuit board 20 is glued and bonded.

[0028] Please refer to Figure 7 In the third embodiment, the circuit board 20 is composed of a plurality of board segments, and the adjacent board segments are connected by a flexible flat cable or a flexible circuit board 20. In this way, the circuit board 20 can be more suitable for the annular accommodating cavity, so that the plurality of board segments are arranged along the circumferential direction of the accommodating cavity, and the volume of the circuit board 20 can be expanded to facilitate the installation of electronic devices such as PPG modules 40 and antennas. In this embodiment, each board segment of the circuit board 20 has two first matching parts 21, and the two first matching parts 21 on each board segment are diagonally distributed. In this way, the two sides of the circuit board 20 can form a first matching group respectively, and the two first matching groups are distributed along the axial direction of the accommodating cavity. The plurality of first fixing parts 11 of each first matching group are arranged along the circumferential direction of the accommodating cavity. Correspondingly, the inner circumferential wall of the shell 10 is also provided with a plurality of first fixing parts 11, each first fixing part 11 is fixedly matched with a first matching part 21. While ensuring the constraint between the circuit board 20 and the shell 10, the process difficulty of forming the first matching group of the circuit board 20 is effectively reduced.

[0029] Please refer to Figure 8 In the fourth embodiment, the circuit board 20 is composed of a plurality of board segments, and the adjacent board segments are connected by a flexible flat cable or a flexible circuit board 20. Each board segment is provided with a first matching part 21 at the middle position of the two sides. In this way, the two sides of the circuit board 20 can form a first matching group respectively, and the two first matching groups are distributed along the axial direction of the accommodating cavity. The plurality of first fixing parts 11 of each first matching group are arranged along the circumferential direction of the accommodating cavity. Correspondingly, the inner circumferential wall of the shell 10 is also provided with a plurality of first fixing parts 11. When the first matching part 21 is an open slot structure, the corresponding first fixing part 11 is in a protruding structure. At this time, the first fixing part 11 can be inserted into the first matching part 21, thereby ensuring the constraint between the circuit board 20 and the shell 10.

[0030] In an embodiment of the present application, please refer to Figure 1Each first fixing part 11 of each first fixing group is arranged corresponding to another first fixing part 11 of another first fixing group along the axial direction of the accommodating cavity.

[0031] In the embodiment, each first fixing part 11 of each first fixing group is arranged corresponding to another first fixing part 11 of another first fixing group along the axial direction of the accommodating cavity, so that the two groups of first fixing parts 11 form an “in-line” distribution structure in the axial direction. On the one hand, the in-line design requires the first matching parts 21 on both sides of the circuit board 20 to also be arranged in the axial direction, so that the first matching parts 21 on both sides of the circuit board 20 are also symmetrically distributed. In this way, when laser cutting and wire cutting are performed on both sides of the circuit board 20, the positioning difficulty of the laser head and the circuit board 20 can be reduced. On the other hand, after the in-line first fixing parts 11 and the first matching parts 21 are matched, the circuit board 20 can form a “double-directional limiting” in the axial direction. Compared with a non-in-line distribution, the in-line first fixing parts 11 and the first matching parts 21 can more accurately limit the small displacement of the circuit board 20 in the axial direction, and further strengthen the position constraint of the circuit board 20 in the axial direction. At the same time, in combination with the feature that the two groups of first fixing parts 11 are arranged in the circumferential direction, the axial in-line and the circumferential spacing are mutually coordinated to construct a more regular and more balanced multi-dimensional constraint system in the accommodating cavity, so as to ensure that the relative position of the circuit board 20 and the shell 10 is highly stable, effectively prevent the circuit board 20 from being axially offset or circumferentially rotated to cause the relative position between the light-emitting lamp beads of the PPG module 40 integrated on the circuit board 20 and the photoelectric sensor 43 to change, and further ensure the stability of the light path therebetween, so as to provide more reliable structural support for the accuracy of blood oxygen monitoring data.

[0032] In an embodiment of the present application, please refer to Figure 1 Each first fixing part 11 is arranged in the interval of the outer edge of the shell 10, so that the outer edge of the shell 10 forms a reserved mounting space configured for the fixed cooperation between the inner shell and the shell 10.

[0033] In the embodiment, the first fixing part 11 of the shell 10 is arranged spaced apart from the outer edge of the shell 10, that is, each first fixing part 11 is located on the inner side of the shell 10, so that the outer edge of the shell 10 can form a reserved mounting space, which can be specially used for the fixed fitting of the inner shell and the shell 10, such as the assembly structure of the buckle, the adhesive or the screw, etc., to avoid the interference of the assembly structure of the first fixing part 11 and the inner shell in space, and to ensure that the inner shell can be smoothly and stably connected and enclosed with the shell 10 to form the accommodating cavity. At the same time, the first fixing part 11 is located on the inner side of the shell 10 and spaced apart from the outer edge, which not only ensures the effective fixing of the first fitting part 21 of the circuit board 20, but also makes the outer edge of the shell 10 focus on the assembly of the inner shell, and the inner side area focuses on the fixing of the circuit board 20, so that they each play their own role and do not interfere with each other. This design finally realizes the stable positioning of the circuit board 20 and the reliable assembly of the inner and outer parts of the shell in the limited internal space of the smart ring 100, and takes into account the stability of the health monitoring function and the overall structural strength of the product.

[0034] In an embodiment of the present application, please refer to Figure 1 and Figure 3 The circuit board 20 comprises a first board segment 201, a second board segment 202 and a third board segment 203 arranged in sequence along the circumferential direction of the accommodating cavity, the first board segment 201 is provided with the transmission lamp source 41, the second board segment 202 is provided with the reflection lamp source 42, and the third board segment 203 is provided with the photoelectric sensor 43. The photoelectric sensor 43 is configured to receive the light emitted by the transmission lamp source 41 and the reflection lamp source 42.

[0035] In the embodiment, the first plate segment 201, the second plate segment 202 and the third plate segment 203 are arranged in sequence along the circumferential direction of the accommodating cavity, and meanwhile, the first plate segment 201 is provided with the transmission light source 41, the second plate segment 202 is provided with the reflection light source 42, and the third plate segment 203 is provided with the photoelectric sensor 43, so that the transmission light source 41 is away from the photoelectric sensor 43, the reflection light source 42 is close to the photoelectric sensor 43, and it is ensured that the transmission light source 41 and the photoelectric sensor 43 can be located on both sides of the finger pulp, and the reflection light source 42 and the photoelectric sensor 43 can be located on the same side of the finger pulp, so that the light emitted by the transmission light source 41 can penetrate the finger pulp tissue and then be received by the photoelectric sensor 43 on the other side, forming a transmission light path; the light emitted by the reflection light source 42 can directly irradiate the surface of the finger pulp, and after being reflected by the skin tissue, it is received by the photoelectric sensor 43 on the same side, forming a reflection light path. The cooperative design of the two light paths can enable the photoelectric sensor 43 to capture the transmission light and the reflection light signals at the same time, on the one hand, the comprehensive nature of the light signal collection can be improved through the complementary of the multi-light path data, and the signal loss or distortion caused by the deviation of the finger wearing position, the difference of the skin state and the like can be reduced; on the other hand, combined with the structure that the plate segments of the circuit board 20 are arranged in sequence along the circumference, the relative positions of the transmission light source 41, the reflection light source 42 and the photoelectric sensor 43 are accurately limited, so that the stability of the two light paths is not damaged due to the position deviation of the elements, and then it is ensured that the back-end algorithm can accurately calculate the blood oxygen saturation based on the stable light signal, and the accuracy and reliability of the blood oxygen monitoring of the intelligent ring 100 are further improved.

[0036] In an embodiment of the present application, please refer to Figure 3 and Figure 4 The intelligent ring 100 is also provided with a plate segment support 30, the plate segment support 30 is limitedly arranged in the accommodating cavity, and the plate segment support 30 abuts against the first plate segment 201, so that the light emitting surface of the transmission light source 41 is arranged opposite to the light receiving surface of the photoelectric sensor 43.

[0037] In the embodiment, the plate segment support 30 is arranged in the accommodating cavity, and the plate segment support 30 is fixedly connected with the shell 10 through bonding and a limiting structure, and then precisely supports and positionally aligns the first plate segment 201 by abutting against the first plate segment 201. Since the first plate segment 201 is provided with the transmission lamp source 41, the third plate segment 203 is provided with the photoelectric sensor 43, and both of them are distributed in the circumferential direction of the accommodating cavity, the plate segment support 30 can limit the projection lamp source from directly facing the photoelectric sensor 43 by abutting against the first plate segment 201, so as to ensure that the light emitting surface of the transmission lamp source 41 can always face the light sensing surface of the photoelectric sensor 43. This design can precisely control the relative angle and distance between the transmission lamp source 41 and the photoelectric sensor 43, avoid the light emitting direction of the transmission lamp source 41 from deviating due to the loosening and deformation of the first plate segment 201, and further prevent the transmission light path from being misaligned, avoid the light from accurately reaching the light sensing surface of the photoelectric sensor 43, and the light signal receiving strength from being attenuated. Meanwhile, the limiting of the plate segment support 30 further strengthens the stability of the circuit board 20 in the accommodating cavity, and the first fixed part 11 and the first matching part 21 of the shell 10 form a double protection of “fixing + supporting”, which not only ensures the precise alignment of the light path between the transmission lamp source 41 and the photoelectric sensor 43, but also provides a structural basis for the stable capture of the PPG module 40, and finally helps to improve the accuracy of the blood oxygen monitoring data.

[0038] In an embodiment of the present application, please refer to Figure 3 The two sides of the plate segment support 30 are respectively provided with a second matching part 31, and the two second matching parts 31 are arranged in the axial direction of the accommodating cavity; the two sides of the shell 10 are respectively provided with a second fixed part 12, each second fixed part 12 and the adjacent first fixed part 11 form a first limiting clamping groove 10a, and each second matching part 31 is clamped in a first limiting clamping groove 10a.

[0039] In the embodiment, the plate segment support 30 is provided with a second matching part 31 on each side, and the two second matching parts 31 are arranged in axial alignment in the accommodating cavity. The shell 10 is provided with a second fixing part 12 on each side, and the second fixing part 12 and the adjacent first fixing part 11 form a first limiting clamping groove 10a. By clamping the second matching part 31 into the first limiting clamping groove 10a, the plate segment support 30 is accurately positioned and fixed in the accommodating cavity. In the axial direction, the two side-aligned second matching parts 31 are matched with the first limiting clamping groove 10a to limit the axial displacement of the plate segment support 30. In the radial and circumferential directions, the clamping groove structure wraps around the second matching part 31 to prevent the plate segment support 30 from radially deviating or circumferentially rotating, ensuring the stability of the position of the plate segment support 30. At the same time, the design ingeniously uses the existing first fixing part 11 on the shell 10 and the newly added second fixing part 12 to form a limiting structure, without the need to additionally open a complex fixing groove on the shell 10, saving the inner circumferential wall space of the shell 10 and meeting the structure requirement of miniaturization of the smart ring 100. Moreover, the plate segment support 30 is quickly positioned and assembled through the clamping groove, improving the production efficiency. Since the plate segment support 30 needs to stably abut against the first plate segment 201 to ensure the alignment of the light path of the transmission light source 41 and the photoelectric sensor 43, after being firmly limited by the first limiting clamping groove 10a, the plate segment support 30 can continuously and accurately apply a supporting force to the first plate segment 201, avoiding the deviation of the light emitting surface of the transmission light source 41 from the light sensing surface of the photoelectric sensor 43 due to the loosening of the plate segment support 30, further consolidating the stability of the transmission light path and providing more reliable structural support for the accurate capture of the light signal of the PPG module 40.

[0040] In an embodiment of the present application, please refer to Figure 3 and Figure 4 The plate segment support 30 has an abutting surface for abutting against the first plate segment 201. The abutting surface is provided with a third fixing part 32, and the first plate segment 201 is provided with a third matching part 22. The third fixing part 32 is fixedly matched with the third matching part 22.

[0041] In the embodiment, the plate segment support 30 is in direct contact with the first plate segment 201 through the abutment surface, and a third fixing portion 32 in a columnar structure is arranged on the abutment surface, and the first plate segment 201 is provided with a third matching portion 22 in an open slot structure, so that the third fixing portion 32 and the third matching portion 22 are fixedly matched. This design increases the “precise fixing” on the basis of “abutment support”. The physical contact of the abutment surface can form radial support for the first plate segment 201, and preliminarily limit the displacement of the first plate segment 201 close to or away from the skin of the finger. On the other hand, the cooperation of the third fixing portion 32 and the third matching portion 22 can further constrain the circumferential rotation or axial deviation of the first plate segment 201 relative to the plate segment support 30, and ensure that there is no relative looseness between the first plate segment 201 and the plate segment support 30. Since the plate segment support 30 has been stably fixed in the accommodating cavity through the first limiting clamping groove 10a, after the first plate segment 201 is fixed with the support through the third fixing portion 32, it is equivalent to indirectly form a fixed link of “housing 10-plate segment support 30-first plate segment 201” with the housing 10, so that the position constraint of the first plate segment 201 is more stable. The first plate segment 201 is provided with a transmission light source 41, and the stable height of the position can ensure that the light emitting surface is always accurately opposite to the light sensitive surface of the photoelectric sensor 43 of the third plate segment 203, so as to avoid the damage of the transmission light path due to the relative displacement between the first plate segment 201 and the support, and further ensure the accuracy of the optical signal transmission, and provide more detailed structural guarantee for the blood oxygen monitoring accuracy.

[0042] In an embodiment of the present application, please refer to Figure 1 and Figure 3 The second plate segment 202 has two first matching portions 21 distributed along the axial direction of the accommodating cavity at the end close to the first plate segment 201, and the first matching portion 21 of the second plate segment 202 and the second matching portion 31 form a second limiting clamping groove 20a, and a first fixing portion 11 is clamped in a second limiting clamping groove 20a.

[0043] In the embodiment, the second plate segment 202 is provided with two first matching parts 21 distributed along the axial direction of the accommodating cavity near the end of the first plate segment 201, the two first matching parts 21 and the second matching part 31 of the plate segment support 30 enclose the second limiting clamping groove 20a, and then the first fixing part 11 of the shell 10 is clamped into the clamping groove to construct the linkage fixing structure of “shell 10 first fixing part 11-second limiting clamping groove 20a-plate segment support 30 / second plate segment 202”. On the one hand, the second limiting clamping groove 20a forms axial limiting for the clamped first fixing part 11 through the axial distribution of the first matching part 21 and the second matching part 31, avoids axial movement of the first fixing part 11, and the circumferential constraint of the clamping groove also limits the circumferential relative rotation of the first fixing part 11 and the corresponding parts, further strengthens the connection stability of the shell 10, the plate segment support 30 and the second plate segment 202. On the other hand, the second plate segment 202 forms indirect fixing with the shell 10 and the plate segment support 30 through the clamping groove cooperation, improves the position accuracy by means of the stable foundation of the plate segment support 30, and forms “two-side clamping” type support with the plate segment support 30 for the adjacent first plate segment 201, wherein the plate segment support 30 directly abuts against the first plate segment 201, and the second plate segment 202 indirectly limits the end of the first plate segment 201 through the clamping groove cooperation, preventing the first plate segment 201 from deforming or deviating due to the unconstrained end. Since the first plate segment 201 is provided with the transmission light source 41, the end is stably limited, the opposite precision of the light emitting surface and the photosensitive surface of the photoelectric sensor 43 is more easily maintained, and the misalignment of the transmission light path due to the end deviation of the first plate segment 201 is effectively avoided. At the same time, the relative position between the reflection light source 42 and the photoelectric sensor 43 on the second plate segment 202 is also ensured to be stable, the reflection light path is reliable, and the stability of the dual light path of the PPG module 40 is further consolidated through the linkage constraint of multiple components, and the accuracy of the blood oxygen monitoring data is improved.

[0044] Further, please refer to Figure 1 and Figure 5 , the second plate segment 202 has two first matching parts 21 distributed along the axial direction of the accommodating cavity at the end away from the first plate segment 201, the third plate segment 203 has two first matching parts 21 distributed along the axial direction of the accommodating cavity near the end of the first plate segment 201, the first matching part 21 of the second plate segment 202 and the first matching part 21 of the third plate segment 203 form a third limiting clamping groove 20b, and a first fixing part 11 is clamped into a third limiting clamping groove 20b.

[0045] In the embodiment, the second plate segment 202 is provided with one first matching part 21 at each of the four corners. Thus, the two first matching parts 21 of the second plate segment 202 close to the first plate segment 201 form the second limiting clamping groove 20a with the second matching part 31 of the plate segment support 30, and the two first matching parts 21 of the second plate segment 202 away from the first plate segment 201 form the third limiting clamping groove 20b with the two first matching parts 21 of the third plate segment 203 close to the first plate segment 201. Each second limiting clamping groove 20a and each third limiting clamping groove 20b limits one first fixing part 11. Thus, through the clamping groove cooperation, the second plate segment 202 and the third plate segment 203 are indirectly connected through the first fixing part 11 of the shell 10, and in combination with the linkage fixing of the second plate segment 202 and the plate segment support 30, a complete limiting chain of “plate segment support 30-second plate segment 202-third plate segment 203-shell 10” is formed, which not only strengthens the structural integrity of the circuit board 20 as a whole in the accommodating cavity, but also avoids deformation of each plate segment due to the overhanging end. In addition, the third plate segment 203 is precisely limited through the clamping groove cooperation, which can further ensure that the light-sensing surface of the photoelectric sensor 43 on the third plate segment 203 always faces the light-emitting surface of the transmission light source 41 of the first plate segment 201, consolidate the stability of the transmission light path, and finally realize the omnibearing position constraint of the transmission light source 41, the reflection light source 42 and the photoelectric sensor 43 of the PPG module 40 through the cross-plate segment clamping groove linkage, and provide more comprehensive structural protection for the accurate capture of blood oxygen monitoring light signals.

[0046] In an embodiment of the present application, please refer to Figure 1 and Figure 3 The circuit board 20 further comprises a fourth plate segment 204, which is located at the end of the third plate segment 203 away from the second plate segment 202. The end of the fourth plate segment 204 close to the first plate segment 201 has two first matching parts 21 distributed along the axial direction of the accommodating cavity, and the end of the third plate segment 203 away from the first plate segment 201 has two first matching parts 21 distributed along the axial direction of the accommodating cavity. The first matching parts 21 of the third plate segment 203 and the first matching parts 21 of the fourth plate segment 204 form the fourth limiting clamping groove 20c, and a first fixing part 11 is clamped in a fourth limiting clamping groove 20c. The fourth plate segment 204 is configured to fix the antenna terminal 50, and the antenna terminal 50 is configured to contact the finger.

[0047] Firstly, the antenna terminal 50 is explained. The antenna terminal 50 is composed of a conductor material. When the smart ring 100 is in a wearing state, the antenna terminal 50 can contact the finger skin. Through the connection of the antenna terminal 50, the finger can be part of the antenna system of the smart ring 100, thereby improving the antenna radiation capability.

[0048] In the embodiment, the end of the third plate segment 203 away from the second plate segment 202 and the end of the fourth plate segment 204 close to the first plate segment 201 are respectively provided with two first matching parts 21 distributed along the axis of the accommodating cavity, and the two first matching parts 21 on each side enclose a fourth limiting clamping groove 20c, in which the first fixing part 11 of the shell 10 is clamped, thereby constructing an extended fixing structure of "the third plate segment 203-the fourth plate segment 204-the shell 10". In this way, the fourth limiting clamping groove 20c cooperates with the first fixing part 11 through the axially distributed first matching parts 21 to form axial limiting, and at the same time, the circumferential relative rotation of the third plate segment 203 and the fourth plate segment 204 is limited, ensuring the circumferential connection stability of the two, so that the first to fourth plate segments 204 of the circuit board 20 form a continuous and stable overall structure, avoiding the overall deformation of the circuit board 20 caused by the independent suspension of the fourth plate segment 204; at the same time, the fourth plate segment 204 is precisely fixed through the cooperation, and the position of the antenna terminal 50 thereon is stable, ensuring that it can reliably contact the skin of the finger when worn, so that the finger as part of the antenna system participates in signal radiation, improving the antenna performance. At the same time, the third plate segment 203 is further fixed in linkage with the fourth plate segment 204, further consolidating the position stability of the photoelectric sensor 43 thereon, so that the light-sensitive surface continuously faces the light-emitting surface of the transmission light source 41, ensuring the stability of the transmission light path; and the fixing of the fourth plate segment 204 also avoids the interference of its shaking on the adjacent third plate segment 203, indirectly maintaining the relative position accuracy of the photoelectric sensor 43 and the reflection light source 42. This design not only strengthens the stability of the light path of the PPG module 40, but also takes into account the reliability of the antenna function, realizing the cooperative optimization of health monitoring and wireless communication performance.

[0049] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made according to the contents of the present application specification and drawings, or direct / indirect application in other related technical fields under the inventive concept of the present application is included in the patent protection scope of the present application.

Claims

1. A smart ring, comprising a housing and a circuit board, wherein the housing comprises an outer shell and an inner shell, the outer shell and the inner shell are connected to form a housing cavity, and the circuit board is located in the housing cavity, characterized in that: A first fixing group is provided on each side of the housing, and the two first fixing groups are distributed along the axial direction of the accommodating cavity; the two first fixing groups include a plurality of first fixing portions of the same number, and the plurality of first fixing portions of each first fixing group are spaced apart along the circumferential direction of the accommodating cavity; A first mating group is provided on each side of the circuit board, and the two first mating groups are distributed along the axial direction of the accommodating cavity; the two first mating groups include a plurality of first mating portions of the same number, and the plurality of first mating portions of each first mating group are spaced apart along the circumferential direction of the accommodating cavity; Each of the first fixing portions is fixedly matched with a first matching portion.

2. The smart ring according to claim 1, wherein: A first fixing portion of each first fixing group is arranged corresponding to a first fixing portion of another first fixing group along the axial direction of the accommodating cavity.

3. The smart ring according to claim 2, wherein: Each of the first fixing portions is spaced apart from an outer edge of the outer shell, so that a reserved installation space is formed on the outer edge of the outer shell. The reserved installation space is configured for fixed cooperation between the inner shell and the outer shell.

4. The smart ring according to any one of claims 1 to 3, characterized in that The circuit board includes a first board segment, a second board segment, and a third board segment arranged in sequence along the circumferential direction of the accommodating cavity, the first board segment is provided with a transmissive light source, the second board segment is provided with a reflective light source, and the third board segment is provided with a photoelectric sensor; The photoelectric sensor is configured to receive light emitted by the transmissive light source and the reflective light source.

5. The smart ring according to claim 4, wherein: The smart ring is also provided with a plate segment support, which is limited in the accommodating cavity and abuts against the first plate segment so that the light-emitting surface of the transmission light source is facing the light-sensitive surface of the photoelectric sensor.

6. The smart ring according to claim 5, wherein: A second matching portion is respectively provided on both sides of the plate segment support, and the two second matching portions are arranged in alignment along the axial direction of the accommodating cavity; a second fixing portion is respectively provided on both sides of the outer shell, and each second fixing portion forms a first limiting slot with the adjacent first fixing portion, and each second matching portion is clamped with a first limiting slot.

7. The smart ring according to claim 6, wherein: The plate segment support has an abutting surface, which is used to abut against the first plate segment; the abutting surface is provided with a third fixing portion, the first plate segment is provided with a third matching portion, and the third fixing portion is fixedly matched with the third matching portion.

8. The smart ring according to claim 6, wherein: The second plate segment has two first matching parts distributed along the axial direction of the accommodating cavity at the end close to the first plate segment. The first matching parts of the second plate segment and the second matching parts form a second limiting slot, and the first fixing part is clamped with the second limiting slot.

9. The smart ring according to claim 4, wherein: The second plate segment has two first matching portions distributed along the axial direction of the accommodating cavity at the end away from the first plate segment, and the third plate segment has two first matching portions distributed along the axial direction of the accommodating cavity at the end close to the first plate segment. The first matching portion of the second plate segment and the first matching portion of the third plate segment form a third limiting slot, and the first fixing portion is clamped with the third limiting slot.

10. The smart ring according to claim 9, wherein: The circuit board further includes a fourth board segment, the fourth board segment being located at an end of the third board segment away from the second board segment; The end of the fourth plate segment close to the first plate segment has two first matching portions distributed along the axial direction of the accommodating cavity, and the end of the third plate segment away from the first plate segment has two first matching portions distributed along the axial direction of the accommodating cavity. The first matching portions of the third plate segment and the first matching portions of the fourth plate segment form a fourth limiting slot, and the first fixing portion is engaged with the fourth limiting slot; The fourth plate segment is configured to fix an antenna terminal, and the antenna terminal is configured to contact a finger.

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