Elastomer earplug and earphone

Abstract

This disclosure relates to the field of electronic device technology, specifically providing an elastomer earplug and a headphone. The headphone includes: a main body with an ear inlet on one side, the ear inlet having a photoelectric detection component, the photoelectric detection component including a light source and a sensor, the light source being adapted to emit light towards the outside of the ear inlet, and the sensor being adapted to receive external light from the ear inlet; an elastomer earplug, fitted outside the ear inlet, the earplug having a first light-transmitting portion at least at positions corresponding to the light source and sensor, suitable for light transmission, and a first light-blocking portion between the corresponding light source and sensor, suitable for blocking light transmission. The headphone provided in this disclosure has a first light-blocking portion between the corresponding light source and sensor, thereby blocking light before it enters human skin tissue, preventing light from being directly scattered by the elastomer and entering the sensor, effectively reducing crosstalk and improving the accuracy of photoelectric detection.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic equipment, and in particular to an elastomeric earplug and earphone. Background Art

[0002] Using photoplethysmography (PPG) to detect human physiological parameters is one of the most commonly used methods for smart wearable devices. Its basic principle is to inject light into human tissue and calculate various human physiological parameters including heart rate through the changes in light intensity reflected or transmitted by human tissue. The photoelectric detection components of smart wearable devices generally include a light source and a photoelectric sensor. The light source emits light to penetrate human skin tissue, and part of the light is reflected by the blood vessels of human tissue and then passes out. The photoelectric sensor receives and detects the light signal that passes out, thereby obtaining human physiological parameters such as heart rate.

[0003] In actual applications, part of the light emitted by the light source will be reflected once or multiple times before passing through human skin tissue and directly enter the photoelectric sensor, resulting in cross-light and inaccurate detection results. In order to avoid the cross-light problem, a light shielding component, such as a light shielding plate, is generally set between the light source and the photoelectric sensor to isolate the light source from the sensor before the light enters the skin tissue to avoid the cross-light problem.

[0004] However, for in-ear headphones, the shell of the earphone sound cavity is in contact with the human ear canal skin through an elastic body (such as a silicone plug). From an optical point of view, the elastic body is equivalent to a scatterer with a certain thickness. The light emitted by the light source is reflected or scattered by the elastic body many times, and part of the light directly enters the photoelectric sensor, resulting in cross-talk, thereby weakening the signal quality and reducing the accuracy of detection. Summary of the invention

[0005] In order to improve the accuracy of the photoelectric detection component of the earphone, the present disclosure provides an elastomeric earplug and an earphone.

[0006] In a first aspect, an embodiment of the present disclosure provides a headset, comprising:

[0007] The body has an ear-entry portion on one side, the ear-entry portion is provided with a photoelectric detection component, the photoelectric detection component includes a light source and a sensor, the light source is suitable for emitting light toward the outside of the ear-entry portion, and the sensor is suitable for receiving external light of the ear-entry portion;

[0008] An elastomeric earplug is sleeved outside the ear inlet, and the earplug is provided with a first light-transmitting portion suitable for light transmission at least at a position corresponding to the light source and the sensor, and a first light-shielding portion suitable for blocking light transmission is provided at a position corresponding to between the light source and the sensor.

[0009] In some embodiments, the in-ear portion includes a first bracket, one end of the first bracket is fixed to the body, and the other end extends toward a side away from the body, and the inner cavity of the first bracket axially penetrates to form a sound cavity of the earphone;

[0010] The photoelectric detection component is arranged in the inner cavity of the first bracket, and the light source and the sensor are facing the radial side of the first bracket; the first bracket is provided with a second light-transmitting portion suitable for light to pass through at least the position corresponding to the light source and the sensor, and a second light-shielding portion suitable for blocking light from passing through is provided at the position corresponding to the light source and the sensor.

[0011] In some embodiments, the earplug includes a connecting portion that is sleeved on the outer wall of the first bracket, and a contact portion whose one end is connected to the connecting portion and is located on the outside of the connecting portion, and the contact portion is suitable for elastically deforming in a direction of fitting with the connecting portion under the action of an external force, and the first light-shielding portion is provided on at least one of the connecting portion and the contact portion.

[0012] In some embodiments, the first light shielding portion is provided on the connecting portion and the contact portion and is located at the same axial position.

[0013] In some embodiments, the first light-transmitting portion is a light-transmitting structure formed of a transparent material; or, the first light-transmitting portion is a light-transmitting hole that penetrates and is opened on the earplug;

[0014] The first shading portion is a shading structure formed by a light-proof material; or, the first shading portion is a shading piece provided on the earplug.

[0015] In some embodiments, the second light-transmitting portion is a light-transmitting structure formed of a transparent material; or, the second light-transmitting portion is a light-transmitting hole that penetrates and is opened on the first bracket;

[0016] The second light shielding portion is a light shielding structure formed by a light-proof material; or, the second light shielding portion is a light shielding member provided on the first bracket.

[0017] In some embodiments, the in-ear portion further includes a second bracket, the second bracket is provided with an assembly position for assembling the photoelectric detection component, and the photoelectric detection component is fixed to the inner cavity of the first bracket through the second bracket.

[0018] In a second aspect, the present disclosure further provides an elastomeric earplug suitable for an in-ear earphone, wherein the earphone has an in-ear portion, the in-ear portion is provided with a photoelectric detection component, and the photoelectric detection component includes a light source and a sensor.

[0019] The earplug is suitable for being mounted outside the ear-entry portion, and is provided with a first light-transmitting portion suitable for light to pass through and a first light-shielding portion suitable for preventing light from passing through;

[0020] When the earplug is mounted on the ear inlet, the first light-transmitting portion corresponds to the positions of the light source and the sensor, and the first light-shielding portion corresponds to the position between the light source and the sensor.

[0021] In some embodiments, the earplug includes a connecting portion and a contact portion, one end of the contact portion is connected to the connecting portion, and the contact portion is located on the outside of the connecting portion, the contact portion is suitable for elastic deformation in a direction of fitting with the connecting portion under the action of an external force, and the first shading portion is provided on at least one of the connecting portion and the contact portion.

[0022] In some embodiments, the first light-transmitting portion is a light-transmitting structure formed of a transparent material; or, the first light-transmitting portion is a light-transmitting hole that penetrates and is opened on the earplug;

[0023] The first shading portion is a shading structure formed by a light-proof material; or, the first shading portion is a shading piece provided on the earplug.

[0024] The earphone provided in the embodiment of the present disclosure includes an earphone body and an elastomeric earplug, an ear inlet portion is provided on one side of the body, and a photoelectric detection component is provided on the ear inlet portion for detecting physiological parameters of a human body, and the photoelectric detection component includes a light source and a sensor, the light source emits light to the outside of the earphone, and the sensor receives light reflected by human tissue. The earplug is sleeved outside the ear inlet portion, and a first light-transmitting portion is provided on the earplug at least at positions corresponding to the light source and the sensor, so that light can pass through the earplug, and a first light-shielding portion is provided on the earplug at a position corresponding to the light source and the sensor, so that before the light emitted by the light source enters the human skin tissue, the light is blocked to prevent the light from being scattered inside the elastomer and directly entering the sensor, thereby effectively reducing the problem of cross-light and improving the accuracy of photoelectric detection.

[0025] The earphone provided in the embodiment of the present disclosure comprises an earplug including a connecting portion sleeved on the outer wall of the first bracket, and a contact portion connected to the connecting portion at one end and located outside the connecting portion, and the contact portion undergoes elastic deformation under the action of an external force, thereby fitting with the connecting portion. For example, under the squeezing of the human ear canal, the contact portion deforms and fits with the connecting portion. The first shading portion is provided on the connecting portion and the contact portion, and is located at the same axial position, so that after the contact portion and the connecting portion fit, there are shading portions on both, thereby more effectively reducing the possibility of cross-talk and further improving the detection accuracy.

[0026] In the earphones provided in the embodiments of the present disclosure, the light-transmitting portion can be a light-transmitting structure formed by a transparent material, and light can directly pass through the transparent material; or it can be a light-transmitting hole opened through, and light can directly pass through the light-transmitting hole. Similarly, the light-shielding portion can also be a light-shielding structure formed by an opaque material, such as light-shielding ink, which can block light from passing through; or it can be a separately provided light-shielding member, such as a light-shielding plate structure, etc. The embodiments of the present disclosure provide a variety of methods for the light-transmitting portion and the light-shielding portion to facilitate processing and implementation.

[0027] The elastomeric earplug provided in the embodiment of the present disclosure is provided with a first light-transmitting portion and a first light-shielding portion. The first light-transmitting portion corresponds to the position of the light source and the sensor, so that light can pass through the earplug and enter the human skin tissue, and the first light-shielding portion corresponds to the position between the light source and the sensor, so that the light emitted by the light source is blocked before entering the human skin tissue, thereby preventing the light from being scattered inside the elastomer and directly entering the sensor, effectively reducing the problem of cross-light and improving the accuracy of photoelectric detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 is a schematic diagram of headphones according to some embodiments of the present disclosure.

[0030] Figure 2 It is a schematic diagram of the cross-sectional structure of headphones according to some embodiments of the present disclosure.

[0031] Figure 3 is a structural explosion diagram of headphones in some embodiments of the present disclosure.

[0032] Figure 4 This is a schematic diagram of wearing headphones according to some embodiments of the present disclosure.

[0033] Figure 5 It is a schematic diagram of the cross-sectional structure of headphones in other embodiments of the present disclosure.

[0034] Description of reference numerals:

[0035] 100-main body; 110-housing; 120-photoelectric detection component; 121-light source; 122-sensor; 130-first bracket; 131-second light shielding portion; 140-second bracket; 141-assembly position; 200-earplug; 210-connecting portion; 220-contact portion; 230-first light shielding portion; 241, 242-light-transmitting holes; 300-skin tissue. DETAILED DESCRIPTION

[0036] The technical solution of the present disclosure will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described implementation is a part of the implementation of the present disclosure, rather than all the implementations. Based on the implementation in the present disclosure, all other implementations obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure. In addition, the technical features involved in the different implementations of the present disclosure described below can be combined with each other as long as they do not conflict with each other.

[0037] Smart wearable devices are increasingly integrating the detection functions of human physiological parameters, such as heart rate detection. For human heart rate detection, smart wearable devices generally use the photoelectric capacitance method (PPG) principle for detection, such as smart watches and bracelets. When performing heart rate detection, the photoelectric detection components of the device are required to be close to the human skin to avoid cross-light problems and improve detection accuracy.

[0038] For smart headphones, the photoelectric detection component is generally located in the earphone's ear-inlet, which refers to the part of the earphone that extends into the human ear canal. This is because the ear-inlet is in the most solid contact with the human ear canal skin, and is less likely to have a detection gap caused by the user's body movement. The human heart rate can be detected relatively accurately, so the photoelectric detection component is located in the earphone's ear-inlet. At the same time, an elastomeric earplug is needed between the earphone's ear-inlet and the human ear canal skin to achieve fixed wearing. Elastomeric earplugs, such as silicone plugs, have elastic deformation capabilities, and their diameter is generally slightly larger than the diameter of the human ear canal, so that they produce elastic deformation when inserted into the ear canal, and the earphone is fixedly worn in the human ear canal.

[0039] In the related art, in order not to affect the operation of the photoelectric detection component, the silicone plug is generally set to a transparent material so that the light emitted by the light source and the light received by the sensor can pass through the silicone plug to achieve heart rate detection. However, from an optical point of view, the transparent earplug is equivalent to a scatterer with a certain thickness. When the light penetrates the earplug, it will also be reflected or scattered multiple times in the earplug, so that part of the light directly enters the sensor, resulting in the occurrence of cross-light problem.

[0040] In order to solve the problem of light crosstalk caused by the elastomeric earplug, a related invention concept is to open a light-transmitting hole on the earplug at the location of the photoelectric detection component, so that the light emitted by the light source and the light passing through the skin tissue can be transmitted through the light-transmitting hole. However, since the elastomeric earplug itself has a certain thickness, the light emitted by the light source will still be reflected once or multiple times in the space of the light-transmitting hole before entering the human skin tissue, causing part of the light to be directly reflected into the sensor before entering the human skin tissue, causing a certain degree of light crosstalk problem and affecting the detection accuracy.

[0041] Based on the technical problems existing in the above-mentioned related technologies, an embodiment of the present disclosure provides an elastomeric earplug and earphone. At least one inventive concept of the scheme disclosed in the present disclosure is: by setting a shading portion at a position corresponding to the position between the light source and the sensor on the elastomeric earplug, the light source and the sensor are completely isolated before the light enters the human skin tissue, thereby reducing the cross-light problem caused by the elastomeric earplug and improving the detection accuracy.

[0042] In some embodiments, the earphones provided in the present disclosure include an earphone body and an elastomeric earplug. The body refers to the main structure of the earphone, such as an integrated structure of a housing, a processor, a sound unit, etc. that realizes the basic functions of the earphone. In the embodiments of the present disclosure, no improvement is made to the specific structure and working principle of the earphone body. Those skilled in the art can undoubtedly realize these structures and functions based on the relevant technologies, so the present disclosure will not repeat them.

[0043] An in-ear portion is provided on one side of the body. The in-ear portion refers to the wearing and sound transmission structure of the earphone that extends into the human ear canal. The in-ear portion is provided with a photoelectric detection component to achieve photoelectric detection functions such as human heart rate detection. The photoelectric detection component includes a light source and a sensor. The light source is suitable for emitting light toward the outside of the in-ear portion, and the sensor is suitable for receiving reflected light from the outside of the in-ear portion. The elastomeric earplug is sleeved outside the in-ear portion. The earplug can produce elastic deformation under the action of external force. The diameter of the earplug is generally slightly larger than the diameter of the human ear canal, so that it produces elastic deformation under the squeezing of the human ear canal, thereby achieving fixed wearing of the earphone.

[0044] A first light-transmitting portion suitable for light transmission is provided on the elastomeric earplug at least at the position corresponding to the light source and the sensor, so that the light emitted by the light source and the light transmitted through the skin tissue can pass through the earplug.

[0045] In an exemplary embodiment, the first light-transmitting portion may be a light-transmitting structure formed of a transparent material. For example, the entire main body of the earplug is made of a fully transparent material; for another example, the earplug is made of a transparent material only at the positions corresponding to the light source and the sensor. That is, at least the transparent material is used at the positions of the earplug corresponding to the light source and the sensor to ensure light transmission.

[0046] In another exemplary embodiment, the first light-transmitting portion may be a through light-transmitting hole provided on the earplug. For example, light-transmitting holes are provided on the earplug at positions corresponding to the light source and the sensor, so that light can directly pass through the light-transmitting holes.

[0047] A first shading portion suitable for blocking light transmission is provided on the elastomeric earplug at a position corresponding to the light source and the sensor, so that the light emitted by the light source is completely separated by the first shading portion before entering the skin tissue and does not enter the sensor.

[0048] In an exemplary embodiment, the first light shielding portion may be a light shielding structure formed of a light-impermeable material. For example, the entire main body of the earplug is made of a light-impermeable material, and the earplug adopts a light-transmitting structure only in the two parts corresponding to the light source and the sensor; for another example, the entire main body of the earplug is made of a transparent material, and the earplug adopts a light-impermeable material for blocking only in the position corresponding to the light source and the sensor.

[0049] In another exemplary embodiment, the first light shielding portion may also be a light shielding member disposed on the earplug. For example, a light shielding plate or a light shielding ring is disposed at a position of the earplug corresponding to between the light source and the sensor, thereby separating the light source and the sensor.

[0050] In summary, it can be understood that in the embodiments of the present disclosure, the function of the first light-transmitting portion is to ensure that light passes through the earplug to achieve photoelectric detection. The function of the first light-shielding portion is to prevent light from directly entering the sensor before entering the skin tissue, thereby causing cross-light problems. Based on the foregoing disclosure, those skilled in the art can undoubtedly implement the above-mentioned embodiments, and the implementation methods of the first light-transmitting portion and the first light-shielding portion are not limited to the foregoing examples.

[0051] From the foregoing, it can be seen that the earphones provided in the embodiment of the present disclosure are provided with a first shading portion on the earplug at a position corresponding to the light source and the sensor, so as to block the light emitted by the light source before entering the human skin tissue, thereby preventing the light from being scattered inside the elastomer and directly entering the sensor, thereby effectively reducing the problem of cross-light and improving the accuracy of photoelectric detection.

[0052] Figures 1 to 4 A specific embodiment of the earplug and earphone according to the present disclosure is shown below. Figures 1 to 4 The earplug and the earphone in this embodiment are described in detail.

[0053] In this embodiment, the earphone provided by the present disclosure includes a body and an elastic earplug 200. The body refers to the main structure of the earphone, such as Figure 1 As shown, the body includes an earphone housing 110 and components such as a processor, a sound unit, and other functional modules disposed in the housing 110. Figure 1In the figure, only part of the structure of the housing 110 is shown, and the various functional modules included in the body are not shown. The shape and structure of the body can be any shape and structure suitable for implementation, and are not limited to those shown in this embodiment. And the various functional modules included in the body can undoubtedly be implemented by those skilled in the art based on the relevant technology, and will not be described in detail in this embodiment.

[0054] An in-ear portion is provided on one side of the outer shell 110 of the main body. The in-ear portion refers to the portion extending into the human ear canal. Its shape is generally approximately cylindrical, so as to fit the human ear canal. Generally, the middle of the in-ear portion is a sound cavity for the earphone to transmit sound. In this embodiment, the in-ear portion includes a first bracket 130. The first bracket 130 is an approximately cylindrical structure, one axial end of which is fixedly connected to the outer shell 110 of the main body, and the other end extends outward to form an in-ear structure suitable for extending into the human ear canal. The inner cavity of the first bracket 130 is axially penetrated, thereby forming a sound cavity for the earphone to transmit sound.

[0055] The body also includes a photoelectric detection component 120, which is used to detect the heart rate of the human body. In this embodiment, the photoelectric detection component 120 is fixed in the inner cavity of the first bracket 130, and the detection end of the photoelectric detection component 120 faces the radial side of the first bracket 130. Figure 2 As shown, the light source 121 and the detection end of the sensor 122 of the photoelectric detection component 120 are both facing upward, so as to detect the skin component on the upper side of the human ear canal. Specifically, the photoelectric detection component 120 is fixedly assembled in the first bracket 130 through the second bracket 140, as shown in FIG. Figure 3 As shown, the second bracket 140 is also a nearly cylindrical structure, and an assembly position 141 is provided on the outer wall on one radial side. For example, in an exemplary implementation, the assembly position 141 is a stepped plane, so that the photoelectric detection component can be fixedly installed on the assembly position 141 of the second bracket 140 by bonding or the like, and then the second bracket 140 is fixedly set in the inner cavity of the first bracket 130, so that the detection end of the photoelectric detection component abuts against the inner wall of the first bracket 130.

[0056] pass Figure 2 As shown in the cross-sectional structure, in this embodiment, since the photoelectric detection component 120 is disposed in the inner cavity of the first bracket 130, the light emitted or received by the photoelectric detection component 120 also needs to pass through the side wall of the first bracket 130. The light-transmitting and light-shielding structures of the first bracket 130 are described in detail below.

[0057] It should be noted that, depending on the different assembly structures of the photoelectric detection assembly 120, the light transmission and light shielding structures of the first bracket 130 are not necessary for the present disclosure. For example, in some other embodiments, the light source 121 and the sensor 122 can be embedded and installed on the outer wall of the first bracket 130, and the detection ends of the light source 121 and the sensor 122 are kept flush with the outer wall surface of the first bracket 130, so that the light does not need to pass through the side wall of the first bracket 130, and there is no need to consider the light transmission and light shielding of the first bracket 130.

[0058] In summary, a main inventive concept of the disclosed solution is to always keep the light source end and the sensor end in an isolated state before the light of the light source enters the human skin tissue 300. Under this concept, those skilled in the art can undoubtedly implement the disclosed solution according to the specific assembly structure of the photoelectric detection component 120.

[0059] Continue back Figures 1 to 4 In the illustrated embodiment, in this embodiment, the light of the photoelectric detection component needs to pass through the side wall of the first bracket 130 , so a second light-transmitting portion and a second light-shielding portion 131 are provided on the first bracket 130 .

[0060] Specifically, a second light-transmitting portion suitable for light to pass through is provided on the first bracket 130 at least at positions corresponding to the light source 121 and the sensor 122 , so that the light emitted by the light source 121 and the light passing through the skin tissue 300 can pass through the first bracket 130 .

[0061] In an exemplary embodiment, the second light-transmitting portion may be a light-transmitting structure formed of a transparent material. Figure 3 As shown, the main body of the entire first bracket 130 is made of a fully transparent material; for another example, the first bracket 130 may be made of transparent materials only at the positions corresponding to the light source 121 and the sensor 122. That is, transparent materials are used at least at the positions of the first bracket 130 corresponding to the light source 121 and the sensor 122 to ensure light transmission.

[0062] In another exemplary embodiment, the second light-transmitting portion may be a through light-transmitting hole provided on the first bracket 130. For example, two hollow light-transmitting holes are provided on the first bracket 130 at positions corresponding to the light source 121 and the sensor 122, so that light can directly pass through the light-transmitting holes.

[0063] Similarly, considering that, for example, the first bracket 130 is a fully transparent structure, there will be a certain light cross-talk problem inside it. Therefore, in this embodiment, the first bracket 130 is provided with a second light shielding portion 131 suitable for blocking the light from passing through at a position corresponding to the light source 121 and the sensor 122, so that the light emitted by the light source 121 is completely separated by the second light shielding portion 131 before passing through the first bracket 130, and does not enter the sensor 122.

[0064] In an exemplary embodiment, the second light shielding portion 131 may be a light shielding structure formed of a light-proof material. For example, the main body of the entire first bracket 130 is made of a light-proof material, and only in the two parts corresponding to the light source 121 and the sensor 122, the first bracket 130 adopts a light-transmitting structure; for another example, the main body of the entire first bracket 130 is made of a transparent material, and only in the position corresponding to the position between the light source 121 and the sensor 122, the first bracket 130 adopts a light-proof material for blocking.

[0065] In another exemplary embodiment, the second light shielding portion 131 may also be a light shielding member disposed on the first bracket 130. Figure 3 As shown, the entire first bracket 130 is made of a fully transparent material, and a light shielding plate is provided on the first bracket 130 at a position corresponding to the position between the light source 121 and the sensor 122 , so as to separate the light source 121 and the sensor 122 .

[0066] In summary, it can be understood that in this embodiment, the role of the second light-transmitting portion is to ensure that light passes through the first bracket 130 to achieve photoelectric detection. The role of the second light-shielding portion is to prevent light from directly entering the sensor 122 before passing through the first bracket 130, thereby causing a cross-light problem. Based on the above disclosure, those skilled in the art can undoubtedly implement the above embodiment, and the implementation methods of the second light-transmitting portion and the second light-shielding portion are not limited to the above examples.

[0067] The main structure of the earphone body is described above. The structure and principle of the elastomeric earplug 200 provided in the embodiment of the present disclosure will be described below.

[0068] The elastic earplug 200 is sleeved on the outer wall of the first bracket 130, thereby circumferentially covering the first bracket 130. Figure 3 As shown, in this embodiment, the earplug 200 includes a connecting portion 210 and a contact portion 220. The connecting portion 210 is cylindrical and matches the outer wall shape of the first bracket 130, so that the earplug 200 can be sleeved on the first bracket 130 through the matching of the connecting portion 210 and the first bracket 130. The contact portion 220 is a bowl-like structure, one end of which is integrally formed with the connecting portion 210, and the other end is a free end, which is convenient for elastic deformation under the action of external force.

[0069] Since the contact part 220 of the earplug 200 directly contacts the human ear canal skin, the earplug 200 can be made of a skin-friendly elastic material, such as silicone. When the user wears the earphone, the contact part 220 is squeezed by the human ear canal and deforms in the direction of fitting with the connecting part 210. Figure 4 As shown, the contact portion 220 is completely fitted with the connecting portion 210 .

[0070] In this embodiment, the main structure of the earplug 200 is made of a fully transparent material, and light can directly penetrate the earplug 200. The transparent part of the earplug 200 forms the first light-transmitting portion. At the same time, a black ring pattern is provided on the earplug 200 between the light source 121 and the sensor 122, and the black ring pattern forms the first light-shielding portion 230. Specifically, Figure 3 , Figure 4 As shown in the figure, black ring patterns are provided on the connecting portion 210 and the contact portion 220 of the earplug 200, and the two ring patterns are located at the same axial position, so that when the earphone is worn, the two ring patterns isolate the entire thickness of the earplug 200 in the radial direction, so that light will not be mixed.

[0071] As for the black ring structure, it is considered that black has the property of absorbing any light, so for example, light-shielding ink can be used to form a black ring as the first light-shielding portion 230, which is simple and easy to implement. Of course, in other embodiments, the first light-shielding portion 230 can also be made directly of opaque material; or a light-shielding member can be provided on the earplug 200 to achieve it, etc. In addition, the function of the black ring is to block the light source 121 and the sensor 122, so the ring can be a circle, or it can be a small part (such as half a circle) provided only on one side of the photoelectric detection component. Those skilled in the art will understand that this embodiment does not limit the disclosed solution.

[0072] In addition, the first light shielding portion 230 can also be provided on one of the connection portion 210 and the contact portion 220 of the earplug 200, which can also play a role in reducing crosstalk, but the effect is not as good as providing the first light shielding portion 230 on both. For example, considering that the thickness of the contact portion 220 of the earplug 200 is often very thin, the crosstalk problem caused by internal scattering is also very small. In order to improve the appearance integrity of the contact portion 220, a black ring pattern can be provided only on the connection portion 210, but not on the contact portion 220. This can also play a role in reducing crosstalk, and the appearance of the earplug 200 looks more integrated and beautiful.

[0073] Figure 5Another specific embodiment of the present disclosure is shown in FIG. 1 . In this embodiment, the difference from the above-mentioned embodiment is that the structure of the first light-transmitting portion is different. For other parts, refer to the above-mentioned embodiment and will not be described in detail here.

[0074] like Figure 5 As shown, in this embodiment, at the positions on the earplug 200 corresponding to the light source 121 and the sensor 122, penetrating light holes are provided on the connecting portion 210 and the contact portion 220, so that the light emitted by the light source 121 can pass through the earplug 200 through the light hole 242, and the light outside the earplug 200 can enter the sensor 122 through the light hole 241. In addition, light holes can also be provided at the positions on the first bracket 130 corresponding to the light source 121 and the sensor 122, so that in this embodiment, the light does not need to penetrate the earplug 200 and the first bracket 130, and the scattered light is reduced accordingly, which can further improve the detection effect. Those skilled in the art can undoubtedly implement this embodiment in combination with the contents of the aforementioned embodiments of the present disclosure, so it will not be repeated.

[0075] The above describes the structures of the elastomeric earplugs and earphones in some embodiments of the present disclosure. Figure 1 The working principles of the earplugs and earphones disclosed in the present invention are described in detail.

[0076] During assembly, the photoelectric detection component 120 is fixed on the assembly position 141 of the second bracket 140, the assembled second bracket 140 is fixedly installed in the inner cavity of the first bracket 130, one end of the first bracket 130 is fixedly installed on one side of the outer shell 110 of the earphone body, and then the earplug 200 is mounted on the outside of the first bracket 130 through the connecting part 210 to complete the assembly of the earphone.

[0077] When the photoelectric detection assembly 120 is working, the light source 121 emits light first, and the light passes through the second light-transmitting portion on the first bracket 130 and the first light-transmitting portion on the earplug 200 in sequence, and then enters the human skin tissue 300. Part of the light is reflected by the tissue blood vessels and passes through the skin, and the light that passes through the first light-transmitting portion on the earplug 200 and the second light-transmitting portion on the first bracket 130 in sequence, and then is received by the sensor 122, and the processor demodulates the received light signal to obtain the human heart rate.

[0078] From the above, it can be seen that the elastomeric earplug and earphone provided by the present disclosure are provided with a first shading portion on the earplug at a position between the corresponding light source and the sensor, so as to block the light emitted by the light source before entering the human skin tissue, thereby preventing the light from being scattered inside the elastomer and directly entering the sensor, thereby effectively reducing the problem of cross-light and improving the accuracy of photoelectric detection.

[0079] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the embodiments. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A headset, characterized in that: include: A body, one side of which is provided with an in-ear portion, the in-ear portion being provided with a photoelectric detection component (120), the photoelectric detection component (120) comprising a light source (121) and a sensor (122), the light source (121) being adapted to emit light toward the outside of the in-ear portion, and the sensor (122) being adapted to receive external light from the in-ear portion; An elastomeric earplug (200) is sleeved outside the ear-entry portion, the earplug (200) being provided with a first light-transmitting portion suitable for light transmission at least at a position corresponding to the light source (121) and the sensor (122), and being provided with a first light-shielding portion (230) suitable for blocking light transmission at a position corresponding to between the light source (121) and the sensor (122); The earplug (200) comprises a connecting portion (210) fixedly connected to the body, and a contact portion (220) connected to the connecting portion (210) at one end, the contact portion (220) being used to contact human skin and being adapted to undergo elastic deformation in a direction of fitting with the connecting portion (210) under the action of an external force, and the first shading portion (230) comprising a shading ring provided on the connecting portion (210) and the contact portion (220) and located at the same axial position.

2. The earphone according to claim 1, characterized in that The in-ear portion comprises a first bracket (130), one end of the first bracket (130) is fixed on the body, and the other end extends toward a side away from the body, and the inner cavity of the first bracket (130) axially penetrates to form a sound cavity of the earphone; The photoelectric detection component (120) is arranged in the inner cavity of the first bracket (130), and the light source (121) and the sensor (122) are oriented toward the radial side of the first bracket (130); a second light-transmitting portion suitable for light to pass through is provided on the first bracket (130) at least at a position corresponding to the light source (121) and the sensor (122), and a second light-shielding portion (131) suitable for blocking light from passing through is provided at a position corresponding to between the light source (121) and the sensor (122).

3. The earphone according to claim 2, characterized in that The connecting portion (210) is sleeved on the outer wall of the first bracket (130) and covers the first bracket along the circumferential direction.

4. The earphone according to claim 1, characterized in that At least one of the connecting portion (210) and the contact portion (220) includes a main body formed of a light-transmitting material and a light-shielding ring, wherein the light-shielding ring is formed by providing ink on the main body.

5. The earphone according to claim 1, characterized in that The first light-transmitting portion is a light-transmitting structure formed of a transparent material; or, the first light-transmitting portion is a light-transmitting hole extending through the earplug (200); The first light shielding portion (230) is a light shielding structure formed by a light-proof material; or, the first light shielding portion (230) is a light shielding member provided on the earplug (200).

6. The earphone according to claim 2, characterized in that: The second light-transmitting portion is a light-transmitting structure formed of a transparent material; or, the second light-transmitting portion is a light-transmitting hole penetrating through the first bracket (130); The second light shielding portion (131) is a light shielding structure formed by a light-proof material; or the second light shielding portion (131) is a light shielding member provided on the first bracket (130).

7. The earphone according to claim 2, characterized in that The in-ear portion further comprises a second bracket (140), and the second bracket (140) is provided with an assembly position (141) for assembling the photoelectric detection component (120), and the photoelectric detection component (120) is fixedly arranged in the inner cavity of the first bracket (130) through the second bracket (140).

8. An elastomeric earplug, suitable for an in-ear earphone, the earphone having an in-ear portion, the in-ear portion being provided with a photoelectric detection component (120), the photoelectric detection component (120) comprising a light source (121) and a sensor (122), characterized in that: The earplug (200) is suitable for being sleeved outside the ear-entry portion, and the earplug (200) is provided with a first light-transmitting portion suitable for light to pass through and a first light-shielding portion (230) suitable for preventing light from passing through; When the earplug (200) is sleeved on the ear inlet, the first light-transmitting portion corresponds to the position of the light source (121) and the sensor (122), and the first light-shielding portion (230) corresponds to the position between the light source (121) and the sensor (122); The earplug (200) comprises a connecting portion (210) and a contact portion (220), one end of the contact portion (220) is connected to the connecting portion (210), and the contact portion (220) is located outside the connecting portion (210), the contact portion (220) is used to contact human skin, and is suitable for elastic deformation in a direction of fitting with the connecting portion (210) under the action of an external force, and the first shading portion (230) comprises a shading ring arranged on the connecting portion (210) and the contact portion (220) and located at the same axial position.

9. The elastomeric earplug according to claim 8, characterized in that: At least one of the connecting portion (210) and the contact portion (220) includes a main body formed of a light-transmitting material and a light-shielding ring, wherein the light-shielding ring is formed by providing ink on the main body.

10. The elastomeric earplug according to claim 8, characterized in that: The first light-transmitting portion is a light-transmitting structure formed of a transparent material; or, the first light-transmitting portion is a light-transmitting hole extending through the earplug (200); The first light shielding portion (230) is a light shielding structure formed by a light-proof material; or, the first light shielding portion (230) is a light shielding member provided on the earplug (200).

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