A detection device and a wearable device

Abstract

The utility model discloses a detection device and wearable equipment relates to intelligent wearable equipment technical field. The detection device includes lens subassembly and detection component, and the lens subassembly includes lens body and sets up in the first shading ring of first shading ring in lens body, first shading ring will lens body divide into first light path channel and second light path channel, first light path channel is located in first shading ring, and second light path channel is located outside first shading ring, detection component includes light source and light receiving element, and light source and light receiving element are located in the same side of lens body, and light source is located in the range of first light path channel, and light receiving element is located in the range of second light path channel. The detection device can prevent the inside of lens body from leaking and light, and improve the accuracy of detection.

Description

Technical Field

[0001] This utility model relates to the field of intelligent wearable device technology, and in particular to a detection device and a wearable device. Background Technology

[0002] As people's living standards improve, more and more people are paying attention to health monitoring. At the same time, with the advent of the smart wearable trend, most wearable devices on the market are equipped with detection devices. The detection devices emit light through a light source and analyze and calculate the intensity of the reflected light after it is absorbed by human blood and tissues, thereby realizing the monitoring of human health indexes, such as heart rate monitoring, blood oxygen monitoring, and body temperature monitoring.

[0003] However, with the trend of miniaturization in wearable devices, there is not enough space inside to build a light-shielding structure, which makes it easy for the light emitted by the light source to leak out. This causes fluctuations in the intensity of the emitted and reflected light, affecting the measurement accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a detection device and wearable device that can prevent light leakage and cross-contamination inside the lens body, thereby improving the accuracy of detection.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A detection device, comprising:

[0007] A lens assembly, comprising a lens body and a first light-shielding ring disposed within the lens body, wherein the first light-shielding ring divides the lens body into a first optical path channel and a second optical path channel, wherein the first optical path channel is located within the first light-shielding ring and the second optical path channel is located outside the first light-shielding ring;

[0008] The detection component includes a light source and a light-receiving element, the light source and the light-receiving element being located on the same side of the lens body, the light source being located within the range of the first optical path channel, and the light-receiving element being located within the range of the second optical path channel.

[0009] As an alternative to the above-mentioned detection device, the first light-shielding ring extends through to the opposite sides of the lens body along the thickness direction of the lens body.

[0010] As an alternative to the above-mentioned detection device, along the thickness direction of the lens body, the projection of the light source onto the lens assembly is located within the first light-shielding ring.

[0011] As an optional embodiment of the above-mentioned detection device, the detection device further includes a lens located between the light source and the first optical path channel, and the lens is configured to converge the light emitted by the light source.

[0012] As an optional embodiment of the above-mentioned detection device, the detection component includes at least two light sources and at least two light-receiving elements, and the lens assembly includes at least two first light-shielding rings corresponding one-to-one with the light sources.

[0013] As an optional embodiment of the above-mentioned detection device, the lens assembly further includes a second light-shielding ring, which covers the outer periphery of the lens body along the circumferential direction of the lens body.

[0014] As an optional solution to the above-mentioned detection device, the detection device further includes a bracket, and the light source and the light-receiving element are both fixedly mounted on the bracket.

[0015] As an optional solution to the above-mentioned detection device, the detection device further includes a light-shielding component, which is disposed between the bracket and the lens assembly to fill the gap between the bracket and the lens assembly. The light-shielding component has a plurality of light-transmitting holes, and the light source and the light-receiving element are directly opposite the corresponding light-transmitting holes.

[0016] As an optional embodiment of the above-mentioned detection device, the detection device further includes a housing, the housing including a receiving cavity and an opening connected to the receiving cavity, the lens assembly being fixedly disposed in the opening, the support and the detection assembly being disposed in the receiving cavity, and a limiting structure being provided between the housing and the support, the limiting structure being configured to limit the relative angle between the housing and the support.

[0017] A wearable device includes the aforementioned detection device and a housing, wherein the detection device is fixedly connected to the housing and the detection component is located on the side of the lens assembly facing away from the human body.

[0018] The beneficial effects of this utility model are:

[0019] This invention provides a detection device and a wearable device. In the detection device, the light source of the detection component emits outgoing light. This outgoing light passes through a first optical path channel within a first light-shielding ring on the lens body and is reflected by the human body to form reflected light. The reflected light passes through a second optical path channel and is absorbed by a light-receiving element. By analyzing and calculating the intensity of the reflected light, the detection of human health indicators can be achieved, including heart rate monitoring, blood oxygen monitoring, and body temperature monitoring. The first light-shielding ring confines the incident light within the first optical path channel, preventing light leakage.

[0020] This detection device can prevent light leakage and cross-contamination inside the lens body, thus improving the accuracy of the detection. Attached Figure Description

[0021] Figure 1 This is an exploded view of a detection device provided in one embodiment of the present invention;

[0022] Figure 2 This is a first structural schematic diagram of a detection device provided in one embodiment of the present invention;

[0023] Figure 3 This is a second structural schematic diagram of the detection device provided in one embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the detection component and support provided in one embodiment of the present invention.

[0025] In the picture:

[0026] 100. Chip components;

[0027] 1. Outer shell; 11. Limiting protrusion; 12. Second limiting surface;

[0028] 2. Lens assembly; 21. Lens body; 211. First optical path channel; 212. Second optical path channel; 213. Anti-abrasion groove; 22. First light-shielding ring; 23. Second light-shielding ring;

[0029] 3. Detection components; 31. Light source; 32. Light receiving element;

[0030] 4. Lens;

[0031] 5. Bracket; 51. Limiting groove; 52. First limiting surface;

[0032] 6. Light-shielding component; 61. Light-transmitting hole. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0035] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] This embodiment provides a wearable device, which includes a housing, a display screen, and a fixing structure. The fixing structure is used to fix the housing to the human body for user use. In this embodiment, the wearable device includes a smart bracelet or smartwatch, and the fixing structure is a fixing strap that can fix the smart bracelet or smartwatch to the user's arm so that the user can observe and use it through the display screen.

[0039] As people's living standards improve, more and more people are paying attention to health monitoring. In this embodiment, the wearable device also includes a detection device, which is fixedly connected to the housing and located on the side of the housing facing the human body, so as to ensure that the detection device can detect the human body's health indicators.

[0040] like Figures 1-3 As shown, the detection device includes a housing 1, a lens assembly 2, and a detection component 3. The housing 1 includes a receiving cavity and an opening connected to the receiving cavity. The lens assembly 2 is fixedly disposed in the opening, and the detection component 3 is disposed in the receiving cavity. The housing 1 can fix and protect the detection component 3. The detection component 3 is located on the side of the lens assembly 2 away from the human body. The detection component 3 includes a light source 31 and a light-receiving element 32. The lens assembly 2 includes a lens body 21, which allows emitted and reflected light to pass through while ensuring the airtightness of the wearable device. The light source 31 and the light-receiving element 32 are located on the same side of the lens body 21. The light source 31 can emit emitted light, which is reflected by the human body after passing through the lens body 21 to form reflected light. The reflected light is received by the light-receiving element 32 after passing through the lens body 21. By analyzing and calculating the intensity of the reflected light, the detection of human health index can be achieved, such as heart rate monitoring, blood oxygen monitoring, and body temperature monitoring.

[0041] The outer shell 1 and the lens assembly 2 are fixed by adhesive to seal the cavity, ensuring that the detection component 3 inside the cavity is not corroded by moisture and thus improving its service life.

[0042] The wearable device also includes a chip assembly 100. The light source 31 and the light receiving element 32 of the detection assembly 3 are both electrically connected to the chip assembly 100. The chip assembly 100 can control the light source 31 to emit outgoing light and can also analyze the reflected light received by the light receiving element 32, thereby realizing the detection of human health index and completing heart rate monitoring, blood oxygen monitoring, body temperature monitoring, etc.

[0043] like Figure 1 and Figure 3 As shown, the lens assembly 2 also includes a first light-shielding ring 22 disposed within the lens body 21. The first light-shielding ring 22 divides the lens body 21 into a first optical path channel 211 and a second optical path channel 212. The first optical path channel 211 is located within the first light-shielding ring 22, and the second optical path channel 212 is located outside the first light-shielding ring 22. The light source 31 is located within the range of the first optical path channel 211, and the light-receiving element 32 is located within the range of the second optical path channel 212.

[0044] It is worth noting that, through the design of the light source 31, the propagation direction of the emitted light from the light source 31 is the same as the thickness direction of the lens body 21, ensuring that the emitted light is relatively focused and the propagation direction does not change. At the same time, the first light-blocking ring 22 can limit the incident light within the first optical path channel 211, preventing light leakage and cross-contamination inside the lens body 21. When the emitted light encounters the human body and is reflected to form reflected light, the propagation direction of the reflected light is relatively chaotic. However, the second optical path channel 212 has a larger range, which is conducive to allowing most or all of the reflected light to enter the second optical path channel 212, thereby being received by the light-receiving element 32 and improving the accuracy of detection.

[0045] In this embodiment, along the thickness direction of the lens body 21, the first light-shielding ring 22 extends to the opposite sides of the lens body 21 to ensure that the emitted light can be restricted throughout the process of passing through the lens body 21, thus preventing light leakage or cross-contamination.

[0046] In some embodiments, the black substance doped inside the glass body of the first light-shielding part is produced by adding metal molecules (photosensitizer) inside the glass during glass crystal growth, annealing and cutting into sheets, polishing, and then exposing a designated area to blacken to form the first light-shielding ring 22.

[0047] In some embodiments, the first light-shielding part may also be a black cylindrical structure, and the lens body 21 is provided with a mounting groove, and the first light-shielding part is disposed in the mounting groove, thereby being fixedly connected to the lens body 21.

[0048] like Figure 2 As shown, the lens assembly 2 also includes a second light-shielding ring 23, which covers the outer periphery of the lens body 21 along its circumference. The second light-shielding ring 23 can confine reflected light passing through the second optical path channel 212 within the second optical path channel 212, preventing light leakage and cross-contamination, and further improving the accuracy of detection. Specifically, the second light-shielding ring 23 is formed by attaching a light-shielding sheet to the outer periphery of the lens body 21 or by screen-printing black ink.

[0049] In this embodiment, the detection component 3 includes at least two light sources 31 and at least two light-receiving elements 32, and the lens component 2 includes at least two first light-shielding rings 22 corresponding one-to-one with the light sources 31. The at least two light sources 31 can increase the intensity of the emitted light, while the at least two light-receiving elements 32 can increase the intensity of the received reflected light, thereby improving the detection accuracy of the wearable device.

[0050] Preferably, the detection component 3 includes two light sources 31 and five light-receiving elements 32. The two light sources 31 are mirror images of a radial plane of the lens body 21. One light-receiving element 32 is located between the two light sources 31, and the other four light-receiving elements 32 are spaced around the perimeter. The light-receiving element 32 located between the two light sources 31 receives the strongest intensity of reflected light, while the intensity of reflected light received by the four light-receiving elements 32 around the perimeter is approximately the same. By setting up five light-receiving elements 32, false triggers caused by local intensity variations of reflected light can be reduced, thereby improving detection accuracy.

[0051] In this embodiment, along the thickness direction of the lens body 21, the projection of the light source 31 on the lens assembly 2 is located within the first light-shielding ring 22, so as to ensure that all the emitted light emitted by the light source 31 can enter the first optical path channel 211 and avoid energy waste.

[0052] Preferably, the detection device further includes a lens 4, which is located between the light source 31 and the first optical path channel 211. The lens 4 is configured to converge the light emitted by the light source 31. The lens 4 enables the outgoing light emitted by the light source 31 to be more focused, further reducing energy loss and improving energy efficiency.

[0053] In this embodiment, lens 4 is a Fresnel lens.

[0054] like Figure 3 As shown, multiple anti-abrasion grooves 213 are provided on the side of the lens body 21 facing away from the detection component 3. Along the thickness direction of the lens body 21, each light source 31 and each light-receiving element 32 is directly opposite one anti-abrasion groove 213. Since the side of the lens body 21 facing away from the detection component 3 is in direct contact with the human body, it is prone to the adhesion of impurities such as sweat and is easily worn, which affects the propagation of light. The anti-abrasion grooves 213 can reduce this impact. At the same time, the setting of anti-abrasion grooves 213 can also reduce the scope of fine processing. It is only necessary to ensure the light transmittance within the range of anti-abrasion grooves 213, which reduces costs and improves efficiency.

[0055] To ensure the stability of the light source 31 and the light-receiving element 32, the detection device also includes a bracket 5, on which both the light source 31 and the light-receiving element 32 are fixedly mounted. The bracket 5 has fixing holes or slots, and the light source 31 and the light-receiving element 32 are positioned within the corresponding fixing holes or slots to ensure the stability of their positions relative to the lens body 21. The lens 4 is also fixedly mounted on the bracket 5, thus fixing the relative position of the lens 4 and the light source 31 and effectively ensuring the stability of the propagation path of the emitted light.

[0056] like Figure 2 and Figure 4As shown, the bracket 5 is disposed in the receiving cavity of the housing 1. There is a limiting structure between the housing 1 and the bracket 5. The limiting structure is configured to limit the relative angle between the housing 1 and the bracket 5, thereby ensuring that the light source 31 and the first optical path channel 211 are aligned, and ensuring that the detection component 3 can successfully detect the health indicators of the human body.

[0057] Preferably, the limiting structure includes a limiting groove 51 disposed on the bracket 5 and a limiting protrusion 11 disposed on the outer shell 1, the limiting protrusion 11 being engaged in the limiting groove 51 to limit the bracket 5 and the outer shell 1; or, the limiting structure includes a first limiting surface 52 disposed on the bracket 5 and a second limiting surface 12 disposed on the outer shell 1, the first limiting surface 52 and the second limiting surface 12 abutting each other to limit the bracket 5 and the outer shell 1.

[0058] It is worth noting that the emitted light from the light source 31 may leak through the gap between the support 5 and the lens body 21 before entering the first optical path channel 211 of the lens body 21. To solve this problem, the detection device also includes a light-shielding member 6, which is disposed between the support 5 and the lens assembly 2 to fill the gap between them. The light-shielding member 6 has several light-transmitting holes 61, with the light source 31 and the light-receiving element 32 facing the corresponding light-transmitting holes 61. The light-shielding member 6 can fill the gap between the support 5 and the lens assembly 2, ensuring that the emitted light from the light source 31 can only enter the first optical path channel 211, thus preventing light leakage.

[0059] Specifically, the light-blocking component 6 can be light-blocking foam, which is clamped and fixed by the lens body 21 and the bracket 5; the light-blocking component 6 can also be light-blocking adhesive, which can be pasted onto the lens body 21 and also onto the bracket 5.

[0060] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A detection device, characterized in that, include: Lens assembly (2), the lens assembly (2) includes a lens body (21) and a first light-shielding ring (22) disposed within the lens body (21). The first light-shielding ring (22) divides the lens body (21) into a first optical path channel (211) and a second optical path channel (212). The first optical path channel (211) is located within the first light-shielding ring (22), and the second optical path channel (212) is located outside the first light-shielding ring (22). The detection component (3) includes a light source (31) and a light receiving element (32). The light source (31) and the light receiving element (32) are located on the same side of the lens body (21). The light source (31) is located within the range of the first optical path channel (211), and the light receiving element (32) is located within the range of the second optical path channel (212).

2. The detection device of claim 1, wherein, Along the thickness direction of the lens body (21), the first light-shielding ring (22) extends to the opposite sides of the lens body (21).

3. The detection device of claim 1, wherein, Along the thickness direction of the lens body (21), the projection of the light source (31) onto the lens assembly (2) is located within the first light-shielding ring (22).

4. The detection device of claim 1, wherein, The detection device further includes a lens (4) located between the light source (31) and the first optical path channel (211), and the lens (4) is configured to converge the light emitted by the light source (31).

5. The detection device of claim 1, wherein, The detection component (3) includes at least two light sources (31) and at least two light-receiving elements (32), and the lens component (2) includes at least two first light-shielding rings (22) corresponding one-to-one with the light sources (31).

6. The detection device of claim 1, wherein, The lens assembly (2) further includes a second light-shielding ring (23), which covers the outer periphery of the lens body (21) along the circumference of the lens body (21).

7. The detection device according to any one of claims 1 to 6, characterized in that, The detection device also includes a bracket (5), and the light source (31) and the light receiving element (32) are both fixedly mounted on the bracket (5).

8. The detection device according to claim 7, characterized in that, The detection device also includes a light-shielding member (6), which is disposed between the bracket (5) and the lens assembly (2) to fill the gap between the bracket (5) and the lens assembly (2). The light-shielding member (6) has a plurality of light-transmitting holes (61), and the light source (31) and the light-receiving element (32) are directly opposite to the corresponding light-transmitting holes (61).

9. The detection device according to claim 7, characterized in that, The detection device further includes a housing (1), which includes a receiving cavity and an opening connected to the receiving cavity. The lens assembly (2) is fixedly disposed in the opening. The bracket (5) and the detection assembly (3) are both disposed in the receiving cavity. A limiting structure is provided between the housing (1) and the bracket (5). The limiting structure is configured to limit the relative angle between the housing (1) and the bracket (5).

10. A wearable device, comprising: The detection device according to any one of claims 1 to 9 further includes a housing, the detection device being fixedly connected to the housing, and the detection component (3) being located on the side of the lens component (2) away from the human body.

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