CN115191976A

CN115191976A - Health detection structure and wearable device

Info

Publication number: CN115191976A
Application number: CN202110382014.4A
Authority: CN
Inventors: 陈贵家; 刘超
Original assignee: Guangdong Genius Technology Co Ltd
Current assignee: Guangdong Genius Technology Co Ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2022-10-18

Abstract

The invention discloses a health detection structure and wearable equipment. The bottom shell is provided with a containing cavity for containing the health detection module. The health detection module comprises a flexible circuit board and a plurality of illumination assemblies. The flexible circuit board is assembled at the bottom of the accommodating cavity through a connecting piece. The illumination assembly comprises a light source and a lens covering the light source. The light sources are electrically connected to the flexible circuit board and arranged at intervals along the surface layer of the flexible circuit board. The light source comprises a plurality of lenses, a cavity bottom and a light source, wherein the lenses and the cavity bottom are integrally molded through injection molding, the cavity bottom is made of light-blocking materials at least in the areas corresponding to the lenses, and the light-blocking materials are configured to prevent light rays projected by the light sources from being mutually crossed. Above-mentioned setting can effectively improve water-proof effects on the one hand, can effectively solve the phenomenon of taking place mutual crosstalk between a plurality of illumination subassemblies on the other hand, has improved user's experience at to a great extent.

Description

Health detection structure and wearable device

Technical Field

The invention relates to the technical field of electronic products, in particular to a health detection structure and wearing equipment.

Background

With the continuous progress of science and technology, wearable equipment such as a smart watch is not limited to the functions of checking time, timing and the like, and various functions such as telephone, short messages, mails, photos, music videos and the like can be realized by implanting intelligent hardware in the watch and carrying a smart phone system to connect to a network. Especially in recent years, people pay attention to self health, and a health detection function, such as heart rate detection, is additionally arranged on some intelligent watches, so that users can know self health conditions at any time on the premise of not going to a hospital, the probability of disease occurrence is reduced to a great extent, and great convenience is brought to daily life of people.

Heart rate is an extremely important physiological parameter of the human body, and heart rate detection is the simplest and most effective method for evaluating whether the heart functions normally or not. In recent years, photoplethysmography (PPG) is one of the most common methods for heart rate detection, and because a sensor is simple and a signal is easy to acquire, the method is widely applied to the wearing devices which are mainstream at present, such as a smart watch. When the user wears the intelligent watch, the PPG signal of the wrist part is used for realizing real-time detection of the heart rate. However, in practical use, the PPG signal detects the change of blood volume in human tissue by the photoelectric principle to obtain a pulse signal, that is, when light with a specific wavelength is projected to the tissue to be detected, the light beam is received by the photosensor after passing through the tissue by way of reflection or transmission. The light beam is absorbed by human body, and the blood volume in artery can be changed periodically along with the expansion of ventricle, so that the luminous intensity is changed periodically, and the change of luminous intensity is converted into an electric signal, namely a PPG signal. However, in the prior art, a perspective window designed by a common PPG structure usually presents a transparent or semitransparent shape, so that components inside the smart watch can be seen visually and clearly when the perspective window is seen from the outside, and the aesthetic degree is low. And after the intelligent watch is used for a long time, the surface layer of the perspective window can be scratched, and the lack of the surface can bring a series of problems of low transmittance and the like. Most importantly, the phenomenon of light crosstalk among a plurality of flash components often occurs, so that the lighting effect is influenced, and the use experience of a user is poor.

Therefore, based on the above-mentioned defects, it is a problem to be solved by those skilled in the art that a health detection structure with good waterproof effect and without mutual crosstalk between each illumination assembly can be manufactured.

Disclosure of Invention

The invention aims to provide a health detection structure and wearing equipment, wherein lenses in the health detection structure are arranged at the bottom of a cavity of a bottom shell through a double-color injection molding process, and a plurality of lenses are separated by adopting light-blocking materials, so that on one hand, the waterproof effect can be improved, on the other hand, the phenomenon of light cross among a plurality of illumination assemblies can be effectively avoided, and the user experience is improved to a great extent.

The technical scheme provided by the invention is as follows:

the invention provides a health detection structure in a first aspect, which comprises a bottom shell and a health detection module, wherein the bottom shell is provided with an accommodating cavity for accommodating the health detection module;

the health detection module comprises a flexible circuit board and a plurality of illumination components;

the flexible circuit board is assembled at the cavity bottom of the accommodating cavity through a connecting piece;

the illumination assembly comprises a light source and a lens covered on the light source;

the light sources are electrically connected to the flexible circuit board and arranged at intervals along the surface layer of the flexible circuit board;

the plurality of lenses and the cavity bottom are integrally formed in an injection molding mode, the cavity bottom is at least made of light blocking materials corresponding to the areas of the plurality of lenses, and the light blocking materials are configured to prevent light rays projected by the plurality of light sources from being mutually mixed.

In this patent, set up a holding chamber through seting up at the drain pan and come this health detection module of holding, can realize accomodating and fixing the health detection module, improve the stability of health detection module in the use. The lens in the health detection module is installed at the bottom of the chamber of drain pan through double-colored injection moulding's technology, so can effectively improve the steadiness of lens in the use, and with the chamber between the compactness of being connected, and then promote water-proof effects. And adopt the material that hinders between a plurality of lenses and cut off, also be that the chamber end chooses for use colored material preparation to form the wall to a plurality of lens light, can effectively avoid taking place the phenomenon of cross light each other between a plurality of illumination subassemblies, improved user's experience at to a great extent.

Further preferably, the lens includes a light-transmitting portion and a fixing portion surrounding the periphery of the light-transmitting portion;

the light transmission part comprises a first surface and a second surface which are opposite;

the first surface is concave in the fixing part and is used for butting the light source;

the second surface protrudes out of the fixed part and is used for outputting light rays projected by the light source;

in the injection molding process, the fixing part is embedded in the cavity bottom, and the second surface of the light transmission part is exposed out of the outer surface layer of the cavity bottom.

Further preferably, a through hole matched with the first surface is further formed in one side, back to the lens, of the cavity bottom, and the through hole extends into the accommodating cavity and is used for accommodating the light source.

Further preferably, the surface layer of the first surface of the light transmission part is filled with a plurality of concentric annular grains which are arranged at intervals, and the circle center is located at the center of the first surface.

Further preferably, a step for limiting the lens to be separated from the cavity bottom is formed between the fixing portion and the light transmission portion.

Further preferably, the cavity bottom of the accommodating cavity protrudes from the outer end face of the bottom shell.

Further preferably, the connecting piece is a double-sided adhesive tape covering the surface layer of the flexible circuit board, and the flexible circuit board is bonded to the cavity bottom of the accommodating cavity through the double-sided adhesive tape.

Further preferably, one end of the flexible circuit board, which is opposite to the connecting piece, is fixed in the accommodating cavity through a reinforcing substrate, and the outline of the reinforcing substrate is matched with the flexible circuit board;

the edge of the reinforcing substrate is provided with a plurality of limiting holes, the position of the cavity bottom corresponding to the edge of the reinforcing substrate is provided with a plurality of limiting convex columns matched with the limiting holes, and the limiting convex columns are sequentially inserted into the limiting holes so as to fix the reinforcing substrate in the accommodating cavity and further fix the flexible circuit board; and/or the edge of the flexible circuit board is also provided with a plurality of flat cables for connecting other components.

Further preferably, the number of the lighting assemblies is three, and the lighting assemblies are arranged on the surface layer of the flexible circuit board at intervals.

The invention also provides wearable equipment in a second aspect, which comprises a fixing belt, a display screen, a host and a host shell; the wearable device comprises a main case, a fixing band, a host, a display screen, a health detection module and a bottom cover, wherein the fixing band is connected with the main case, the host is assembled in the main case, the display screen is assembled on the top surface of the main case, the wearable device further comprises the health detection structure, the health detection module is assembled in the main case, and the bottom cover is arranged on the bottom surface of the main case.

The invention has the technical effects that:

1. in this patent, the lens in the health detection module is installed at the bottom of the chamber of drain pan through double-colored injection moulding's technology, so can effectively improve the steadiness of lens in the use, and with the chamber between the compactness of connecting, and then promote water-proof effects. And adopt the material that blocks light between a plurality of lenses to cut off, also be the chamber bottom and select colored material preparation for use promptly to form the wall to a plurality of lens light, can effectively avoid taking place the phenomenon of cross light each other between a plurality of illumination subassemblies, improved user's experience at to a great extent.

2. In this patent, set up a holding chamber through seting up at the drain pan and come this health detection module of holding, can realize accomodating and fixing the health detection module, improve the stability of health detection module in the use.

3. In the patent, the lens comprises a light transmission part and a fixing part surrounding the periphery of the light transmission part, and the fixing part is embedded in the cavity bottom, so that the light transmission part can be fixed, the lens can be effectively prevented from falling off easily, and the stabilizing effect is further improved.

4. In this patent, the top layer packing of the first face of printing opacity portion has a plurality of concentric circles, and the annular line that the interval set up, and this annular line both can strengthen the light path effect, can play pleasing to the eye effect again.

5. In this patent, a step is formed between fixed part and the printing opacity portion, can be used to the restriction lens and break away from the chamber bottom.

6. In this patent, set up to protrusion in the outer terminal surface of drain pan through the chamber end with the holding chamber, so, can laminate in human skin top layer at the bottom of this chamber more closely for detection effect is better.

7. In this patent, strengthen fixed flexible circuit board through addding the reinforcement base plate for flexible circuit board's steadiness is better, effectively avoids it to take place phenomenons such as crooked easily because of receiving external force factors such as striking.

Drawings

The invention is described in further detail below with reference to the following figures and detailed description:

FIG. 1 is a schematic view of the structure of the product of the present invention in one state;

FIG. 2 is a schematic view of the structure of FIG. 1 in another state;

FIG. 3 is a schematic view of the structure of FIG. 1 in yet another state;

FIG. 4 isbase:Sub>A cross-sectional view taken along A-A of FIG. 3;

fig. 5 is a schematic structural view of the bottom case shown in fig. 1;

FIG. 6 is a schematic diagram of the health detection module shown in FIG. 1 in one state;

FIG. 7 is a schematic view of the structure of FIG. 6 in another state;

FIG. 8 is an exploded perspective view of the health detection module shown in FIG. 6;

fig. 9 is a schematic view of the structure of the lens shown in fig. 6.

The reference numbers indicate:

100. a bottom case; 110. an accommodating cavity; 111. a cavity bottom; 1111. a through hole; 1112. a limiting convex column; 200. a health detection module; 210. a flexible circuit board; 211. arranging wires; 220. a lighting assembly; 221. a light source; 222. a lens; 2221. a light-transmitting portion; 22211. a first side; 22212. a second face; 2222. a fixed part; 2223. annular lines; 2224. step steps; 230. a connecting member; 240. a reinforcing substrate; 241. and a limiting hole.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

In recent years, photoplethysmography (PPG) is one of the most common methods for heart rate detection, and because a sensor is simple and a signal is easy to acquire, the method is widely applied to the wearing devices which are mainstream at present, such as a smart watch. A PPG signal realization through the wrist portion is to the real-time detection of rhythm of the heart for can wear intelligent wrist-watch. However, in practical use, the PPG signal detects the change of blood volume in human tissue by the photoelectric principle to obtain a pulse signal, that is, when light with a specific wavelength is projected to the tissue to be detected, the light beam is received by the photosensor after passing through the tissue by way of reflection or transmission. The light beam is absorbed by human body, and the blood volume in artery can be changed periodically along with the expansion of ventricle, so that the luminous intensity is changed periodically, and the change of luminous intensity is converted into an electric signal, namely a PPG signal. However, in the prior art, a perspective window designed by a common PPG structure usually presents a transparent or semitransparent shape, so that components inside the smart watch can be seen visually and clearly when the perspective window is seen from the outside, and the aesthetic degree is low. And after the intelligent watch is used for a long time, the surface layer of the perspective window can be scratched, and the lack of the surface can bring a series of problems of low transmittance and the like. Most importantly, the phenomenon of light crosstalk among a plurality of flash assemblies often occurs, so that the illumination effect is influenced, and the use experience of a user is poor.

Based on the above-mentioned defects, the inventors (or people) have conducted extensive research for many years, and have now provided a health detection structure with good waterproof effect and without mutual crosstalk between each illumination assembly 220. Specifically, according to an embodiment of the present invention, as shown in fig. 1 to 4, the present invention provides a health detection structure in a first aspect, which includes a bottom case 100 and a health detection module 200. The bottom case 100 is provided with a receiving cavity 110 for receiving the health detection module 200. The health detection module 200 includes a flexible circuit board 210 and a plurality of illumination assemblies 220. The flexible circuit board 210 is assembled to the cavity bottom 111 of the accommodating cavity 110 through a connector 230. The illumination assembly 220 includes a light source 221 and a lens 222 covering the light source 221. The light sources 221 are electrically connected to the flexible circuit board 210 and are disposed at intervals along a surface layer of the flexible circuit board 210. The plurality of lenses 222 and the cavity bottom 111 are integrally injection-molded, and at least the area of the cavity bottom 111 corresponding to the plurality of lenses 222 is made of a light blocking material, and the light blocking material is configured to prevent light rays projected by the plurality of light sources 221 from being mixed with each other.

In this embodiment, the accommodating cavity 110 is formed in the bottom case 100 to accommodate the health detection module 200, so that the health detection module 200 can be accommodated and fixed, and the stability of the health detection module 200 in the using process is improved. Lens 222 in health detection module 200 is installed in the chamber end 111 of drain pan 100 through double-shot molding's technology, so can effectively improve the steadiness of lens 222 in the use, and with the inseparability of being connected between the chamber end 111, and then promote water-proof effects. And the plurality of lenses 222 are separated by light-blocking materials, that is, the cavity bottom 111 is made of colored materials, so that light rays of the plurality of lenses 222 are separated, the phenomenon that the plurality of illumination assemblies 220 are mutually crossed can be effectively avoided, and the user experience is improved to a great extent.

Specifically, in this embodiment, referring to fig. 2 and 5, the accommodating cavity 110 may be configured to accommodate and fix the health detection module 200, so that the health detection module 200 may be far away from (at least not close to) other components, the health detection module 200 is ensured not to be subjected to hard extrusion and signal interference of the other components, and the stability of the health detection module 200 in the using process may be effectively improved. Preferably, referring to fig. 1 and 5, the cavity bottom 111 of the accommodating cavity 110 protrudes from the outer end surface of the bottom case 100, so that the cavity bottom 111 can be more closely attached to the surface layer of the skin of the human body, and the detection effect is better.

In this embodiment, the lens 222 of the illumination assembly 220 is preferably made of transparent or translucent glass. In a preferred example, the plurality of lenses 222 are arranged at predetermined positions of the mold at intervals, and then the bottom case 100 is formed by injecting liquid into the mold, the whole bottom case 100 is made of a plastic light-blocking material, that is, the bottom case 100 is made of a colored material to achieve the light-blocking effect, so that the plurality of lenses 222 and the bottom case 100 form a whole, the stability of the lenses 222 in the using process and the tightness of the connection between the lenses and the bottom 111 can be effectively improved, and the waterproof effect is further improved. Of course, the plurality of lenses 222 may not be crossed with each other, so as to improve the user experience. In another preferred example, only the bottom 111 of the accommodating cavity 110 may be made of a plastic light-blocking material, and the material of the rest portions of the bottom case 100 is not limited as long as the plurality of lenses 222 are independent from each other and do not cross each other. Of course, in another preferred example, the light blocking material may be used only in a local area of the cavity bottom 111, that is, at least an area of the cavity bottom 111 corresponding to the plurality of lenses 222, and not necessarily the whole cavity bottom 111, for example, the spacing area between the plurality of lenses 222, which is not limited herein.

That is, the light-blocking material is only required to be able to prevent the light rays projected by the light sources 221 from crosstalk with each other, and the selection of the light-blocking material and the predetermined position are not limited. For example, the light-blocking material according to the present embodiment is not limited to plastic, but other materials, such as rubber, wood or bamboo, are also within the scope of the present invention.

As a further optimization of the present embodiment, referring to fig. 6, the number of the lighting assemblies 220 may be three, and the lighting assemblies are spaced apart from each other on the surface layer of the flexible circuit board 210. The three illumination assemblies 220 may be transversely disposed on the surface of the flexible circuit board 210 at intervals, or may be longitudinally disposed or obliquely disposed. Of course, the number of the lighting assemblies 220 can also be selected according to the actual application scenario, such as four, five, or two. The number of the illumination assemblies 220 is not limited in the present patent as long as the actual use requirements can be met.

Further, referring to fig. 4 and 8, the light sources 221 of the plurality of illumination assemblies 220 are all assembled on the flexible circuit board 210 and are all electrically connected to the flexible circuit board 210, and the flexible circuit board 210 can control the on/off and illumination intensity of the light sources 221.

Further, the lens 222 covers the light source 221, and the light projected by the light source 221 can be projected to the skin surface layer of the human body through the lens 222. Specifically, referring to fig. 6 and 9, the lens 222 may include a light-transmitting portion 2221 and a fixing portion 2222 surrounding the light-transmitting portion 2221. The light-transmitting portion 2221 is generally used for light projected by the light source 221 to pass through, and the fixing portion 2222 can fix the light-transmitting portion 2221, so that the lens 222 can be effectively prevented from easily falling off from the cavity bottom 111, and the fixing effect of the lens 222 can be further improved. Among them, the light-transmitting portion 2221 may include a first face 22211 and a second face 22212 that are opposite to each other. The first surface 22211 is recessed in the fixing portion 2222 for abutting against the light source 221. The second surface 22212 protrudes from the fixing portion 2222, and is configured to output light projected by the light source 221. That is, the concave direction of the first surface 22211 is the same as the convex direction of the second surface 22212, and the concave amplitude and the convex amplitude are the same, so that the light-transmitting portion 2221 can form a disc-shaped structure, which is beneficial to outputting light and coating the light source 221, so that the light source 221 can only project the light to the light-transmitting portion 2221, and cannot project the light to other positions, thereby being beneficial to concentrating the light. The fixing portion 2222 may be a complete ring structure, or a plurality of segmented protruding pieces. The outline of the fixing portion 2222 may not be particularly limited as long as the fixing effect can be achieved. During the injection molding process, the fixing portion 2222 may be directly embedded inside the cavity bottom 111, and the second surface 22212 of the light-transmitting portion 2221 is exposed on the outer surface layer of the cavity bottom 111 and faces the skin surface layer.

As a further optimization of the present embodiment, referring to fig. 6, a step 2224 for limiting the lens 222 to be separated from the cavity bottom 111 is formed between the fixing portion 2222 and the light-transmitting portion 2221. And all areas of step 2224, that is, the gap area between step 2224 and second surface 22212, are filled with bottom case 100 during the injection molding process, so that lens 222 is completely confined on cavity bottom 111 under the abutting fixation of step 2224, so that the stabilization effect of lens 222 is stronger.

Further, in this embodiment, referring to fig. 4, in order to prevent the light projected by the light source 221 from being blocked during the projection onto the lens 222, a through hole 1111 matched with the first surface 22211 may be disposed on a side of the cavity bottom 111 opposite to the lens 222, and the through hole 1111 extends into the accommodating cavity 110 for accommodating the light source 221. That is, during the injection molding of the bottom case 100, a plurality of through holes 1111 are reserved in advance at positions of the bottom case 100 corresponding to the plurality of lenses 222. Since the light sources 221 are protruded from the surface of the flexible circuit board 210 after the light sources 221 are assembled on the flexible circuit board 210, the through holes 1111 can also be used for accommodating a plurality of light sources 221. After the through hole 1111 is abutted to the flexible circuit board 210, the flexible circuit board 210 can seal the through hole 1111, so that the light source 221 can only project the light source 221 towards the lens 222, and the light leakage of the light source 221 from the side surface is prevented.

Further, in this embodiment, referring to fig. 9, a surface layer of first surface 22211 of light-transmitting portion 2221 is filled with a plurality of concentric annular ridges 2223 arranged at intervals, and a center of each of the plurality of annular ridges 2223 is located at a center of first surface 22211. It should be noted that, in order to ensure that the light can be uniformly projected onto the surface layer of the human skin through the light-transmitting portion 2221, the light-transmitting portion 2221 may be preferably configured to have a regular structure, such as a square, a circle, or a regular polygon, and is not limited in this respect. The annular grooves 2223 adopt the principle of a Fresnel lens, and the principle of the Fresnel lens is also widely applied to a mobile phone flash lamp and a camera lens. The basic principle is that one side of the lens 222 is smoothly arranged, a plurality of concentric circles are recorded on the other side of the lens at intervals from large to small, and the texture is designed according to the requirements of light interference, interference and relative sensitivity and receiving angle. The different angles between every two adjacent circular grooves concentrate the light to one position to form a central focus, that is, the central focus of the light-transmitting portion 2221, so that the light can be adjusted to be parallel light or to be converged light, thereby eliminating the phenomenon of darkening or blurring of the corners.

As can be seen from the above, the annular grooves 2223 can enhance the optical path effect. Of course, the structure can play a role in beauty due to the regularity of the structure.

In this embodiment, referring to fig. 6 and 8, the flexible circuit board 210 may be assembled to the cavity bottom 111 of the accommodating cavity 110 through a connector 230, and is disposed corresponding to the plurality of lighting assemblies 220. Specifically, the connecting member 230 is a double-sided tape covering the surface layer of the flexible circuit board 210, and the flexible circuit board 210 is adhered to the cavity bottom 111 of the accommodating cavity 110 through the double-sided tape. Of course, the connecting member 230 may be other members or media for connecting and fixing, and is not limited thereto.

Further, in the present embodiment, referring to fig. 4, fig. 5, fig. 7 and fig. 8, an end of the flexible circuit board 210 opposite to the connecting member 230 is fixed in the accommodating cavity 110 through a reinforcing substrate 240. And the outline of the reinforcing substrate 240 is matched with that of the flexible circuit board 210. The reinforcing substrate 240 is added to reinforce and fix the flexible circuit board 210, so that the flexible circuit board 210 has better stability, and the phenomenon that the flexible circuit board is easily bent due to external force factors such as impact is effectively avoided. The reinforcing base plate 240 may be made of a steel sheet, but is not limited thereto. The edge of the reinforcing substrate 240 is provided with a plurality of limiting holes 241, the position of the cavity bottom 111 corresponding to the edge of the reinforcing substrate 240 is provided with a plurality of limiting convex columns 1112 matched with the limiting holes 241, and the plurality of limiting convex columns 1112 are sequentially inserted into the plurality of limiting holes 241 so as to fix the reinforcing substrate 240 in the accommodating cavity 110, thereby fixing the flexible circuit board 210. Further, referring to fig. 8, the flexible circuit board 210 is further provided with a plurality of bus lines 211 at the edge thereof for connecting other components.

The invention also provides wearing equipment in a second aspect, which comprises a fixing belt, a display screen, a host and a host shell. The fixed band is connected to the host computer shell, and the host computer is assembled in the host computer shell, and the top surface at the host computer shell is assembled to the display screen. Wherein, this wearing equipment still includes the health detection structure. Specifically, the health detection module 200 of the health detection structure is assembled in the host casing, and the bottom casing 100 is covered on the bottom surface of the host casing.

It is worth mentioning that, for the convenience of describing the technical scheme of this application in detail, the wearing equipment of this application specifically explains with smart watch as an example. The user can locate the main case bottom surface of intelligent wrist-watch with drain pan 100 lid when using this intelligent wrist-watch, and passes through the watchband when the user, also is the fixed band, wears this intelligent wrist-watch in the wrist of a hand on, and the outer end face of drain pan 100 is fitted in the skin top layer of human body, and the user is through the display screen of operating this intelligent wrist-watch to health detection module 200 is opened to the control host computer, and then gathers human data.

Certainly, in other application scenarios, this wearing equipment can also be electronic equipment such as intelligent bracelet, cell-phone, smart glasses, all be within the scope of protection of this patent. That is to say, the health detection structure provided by the patent is equivalent to an external extended function module, which can be assembled on any equipment, so that the equipment has the function of health detection on a human body.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a health detection structure, includes drain pan and health detection module, the drain pan is equipped with one and is used for the holding chamber of health detection module, its characterized in that:

the light sources are electrically connected to the flexible circuit board and are arranged at intervals along the surface layer of the flexible circuit board;

the light source comprises a plurality of lenses and a cavity bottom, wherein the lenses and the cavity bottom are integrally molded through injection molding, the area of the cavity bottom, at least corresponding to the lenses, is made of light blocking materials, and the light blocking materials are configured to prevent light rays projected by the light sources from being mutually mixed.

2. The health detection structure of claim 1,

the lens comprises a light-transmitting part and a fixing part surrounding the periphery of the light-transmitting part;

the first surface is inwards concave to the fixing part and is used for butting the light source;

3. The health detection structure of claim 2,

the cavity bottom is back to one side of the lens and is further provided with a through hole matched with the first surface, and the through hole extends to the inside of the accommodating cavity and is used for accommodating the light source.

4. The health detection structure of claim 2,

the surface layer of the first surface of the light transmission part is filled with a plurality of annular grains which are concentric and arranged at intervals, and the circle center is positioned at the center of the first surface.

5. The health detection structure of claim 2,

a step for limiting the lens to be separated from the cavity bottom is formed between the fixing part and the light transmission part.

6. The health detection structure according to any one of claims 1 to 5,

the cavity bottom of the accommodating cavity protrudes out of the outer end face of the bottom shell.

7. The health detection structure according to any one of claims 1 to 5,

the connecting piece is a double-sided adhesive tape covering the surface layer of the flexible circuit board, and the flexible circuit board is bonded at the bottom of the accommodating cavity through the double-sided adhesive tape.

8. The health detection structure according to any one of claims 1 to 5,

one end of the flexible circuit board, which is opposite to the connecting piece, is fixed in the accommodating cavity through a reinforcing substrate, and the outline of the reinforcing substrate is matched with the flexible circuit board;

9. The health detection structure according to any one of claims 1 to 5,

the number of the illumination assemblies is three, and the illumination assemblies are arranged on the surface layer of the flexible circuit board at intervals.

10. A wearable device comprises a fixing band, a display screen, a host and a host shell;

the fixed band connect in the mainframe shell, the host computer assemble in the mainframe shell, the display screen assemble in the top surface of mainframe shell, its characterized in that:

the health detection structure of any one of claims 1-9, wherein said health detection module is assembled in said main housing, and said chassis cover is disposed on a bottom surface of said main housing.