CN211656342U - Elastomer earplug and earphone - Google Patents

Abstract

The disclosure relates to the technical field of electronic equipment, and particularly provides an elastomer earplug and an earphone. The earphone includes: the photoelectric detection device comprises a body, a photoelectric detection assembly and a control unit, wherein an ear entering part is arranged on one side of the body, the ear entering part is provided with the photoelectric detection assembly, the photoelectric detection assembly comprises a light source and a sensor, the light source is suitable for emitting light towards the outside of the ear entering part, and the sensor is suitable for receiving the outside light entering the ear; the elastic earplug is sleeved outside the ear, a first light transmission part suitable for light transmission is arranged at least at the position corresponding to the light source and the sensor on the earplug, and a first shading part suitable for blocking the light transmission is arranged at the position corresponding to the position between the light source and the sensor. The earphone that this disclosed embodiment provided is equipped with first shading portion in the position between corresponding light source and sensor on the earplug to before the light that the light source sent gets into human skin tissue, carry out the separation to the light, avoid light directly to get into the sensor through the inside scattering of elastomer, effectively reduced the crosstalk problem, improve photoelectric detection's accuracy.

Description

Elastomer earplug and earphone

Technical Field

The present disclosure relates to the field of electronic devices, and more particularly, to an elastomer earplug and an earphone.

Background

The method for detecting human physiological parameters by utilizing a photoplethysmography (PPG) is one of the most common modes of the current intelligent wearable equipment, and the basic principle is that light is emitted into human tissues, and various human physiological parameters including heart rate are calculated through the light intensity change reflected or transmitted by the human tissues. The photoelectric detection subassembly of intelligence wearing equipment generally includes light source and photoelectric sensor, and light source emission light pierces through human skin tissue, and partial light is worn out after human tissue vascular reflection, and photoelectric sensor receives and detects the light signal of wearing out to obtain human physiological parameters such as rhythm of the heart.

In practical application, part of light emitted by the light source directly enters the photoelectric sensor through one or more reflections before passing through human skin tissues, so that light crosstalk occurs, and the detection result is inaccurate. To avoid cross-talk, a light blocking element, such as a light baffle, is typically positioned between the light source and the photosensor to isolate the light source from the photosensor before the light enters the skin tissue to avoid cross-talk.

However, in the case of an in-ear earphone, the contact between the housing of the in-ear sound cavity of the earphone and the skin of the human ear canal is made by an elastomer (e.g., a silicone plug). From the optical perspective, the elastic body is equivalent to a scattering body with a certain thickness, light emitted by the light source is reflected or scattered for multiple times through the elastic body, and partial light directly enters the photoelectric sensor to cause crosstalk, so that the signal quality is weakened, and the detection accuracy is reduced.

SUMMERY OF THE UTILITY MODEL

In order to improve the photoelectric detection subassembly accuracy of earphone, this disclosure provides an elastomer earplug and earphone.

In a first aspect, the disclosed embodiments provide a headset, including:

the photoelectric detection device comprises a body, wherein one side of the body is provided with an ear inlet part, the ear inlet part is provided with a photoelectric detection assembly, the photoelectric detection assembly comprises a light source and a sensor, the light source is suitable for emitting light towards the outside of the ear inlet part, and the sensor is suitable for receiving the outside light of the ear inlet part;

elastomer earplug, the cover is located outside the income ear, at least on the earplug correspond the light source with the position of sensor is equipped with the first printing opacity portion that is suitable for light to see through, and is corresponding the light source with position between the sensor is equipped with and is suitable for the first shading portion that blocks light and see through.

In some embodiments, the ear insertion portion includes a first support, one end of the first support is fixedly disposed on the body, the other end of the first support extends towards a side away from the body, and an inner cavity of the first support axially penetrates through a sound cavity of the earphone;

the photoelectric detection assembly is arranged in the inner cavity of the first support, and the light source and the sensor face one radial side of the first support; the first support is provided with a second light-transmitting part suitable for light transmission at least at the position corresponding to the light source and the sensor, and a second shading part suitable for blocking light transmission is arranged at the position corresponding to the position between the light source and the sensor.

In some embodiments, the earplug includes a connecting portion sleeved on the outer wall of the first support, and a contact portion having one end connected to the connecting portion and located outside the connecting portion, the contact portion is adapted to elastically deform in a direction of being attached to the connecting portion under an external force, and the first light shielding portion is disposed on at least one of the connecting portion and the contact portion.

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

In some embodiments, the first light-transmitting portion is a light-transmitting structure formed of a transparent material; or the first light-transmitting part is a light-transmitting hole which penetrates through the earplug;

the first light shielding part is a light shielding structure formed by opaque materials; or, the first shading part is a shading part arranged on the earplug.

In some embodiments, the second light-transmitting portion is a light-transmitting structure formed of a transparent material; or the second light transmission part is a light transmission hole which penetrates through the first support;

the second light shielding part is a light shielding structure formed by opaque materials; alternatively, the second light shielding portion is a light shielding member provided on the first holder.

In some embodiments, the ear insertion portion further includes a second bracket, the second bracket is provided with an assembling position for assembling the photoelectric detection assembly, and the photoelectric detection assembly is fixedly arranged in the inner cavity of the first bracket through the second bracket.

In a second aspect, the present disclosure also provides an elastomeric earplug adapted for use in an in-ear headphone, the headphone having an in-ear portion with a photodetecting assembly, the photodetecting assembly comprising a light source and a sensor,

the earplug is suitable for being sleeved outside the ear inlet part and is provided with a first light transmitting part suitable for light transmission and a first shading part suitable for preventing light transmission;

when the earplug is sleeved on the ear, the first light transmission part corresponds to the light source and the position of the sensor, and the first shading part corresponds to the position between the light source and the sensor.

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, the contact portion is located outside the connecting portion, the contact portion is adapted to be elastically deformed toward a direction of being attached to the connecting portion under an external force, and the first light shielding portion is disposed on at least one of the connecting portion and the contact portion.

In some embodiments, the first light-transmitting portion is a light-transmitting structure formed of a transparent material; or the first light-transmitting part is a light-transmitting hole which penetrates through the earplug;

the first light shielding part is a light shielding structure formed by opaque materials; or, the first shading part is a shading part arranged on the earplug.

The earphone that this disclosed embodiment provided, including earphone body and elastomer earplug, one side of body is equipped with into the ear, goes into the ear and is equipped with photoelectric detection subassembly for carry out physiological parameter to the human body and detect, photoelectric detection subassembly includes light source and sensor, and the light source is to the outside emission light of earphone, and the sensor receives the light that human tissue reflected out. Outside the ear was located to the earplug cover, be equipped with first printing opacity portion at the position that corresponds light source and sensor at least on the earplug, thereby make light can see through the earplug, and the position that corresponds between light source and the sensor on the earplug is equipped with first shading portion, thereby before the light that the light source sent gets into human skin tissue, carry out the separation to the light, avoid light directly to get into the sensor through the inside scattering of elastomer, effectively reduced the light string problem, improve photoelectric detection's accuracy.

The earphone provided by the embodiment of the disclosure comprises a connecting part sleeved on the outer wall of the first support and a contact part, wherein one end of the contact part is connected with the connecting part and is positioned outside the connecting part, and the contact part elastically deforms under the action of external force so as to be attached to the connecting part. For example, under the compression of the human ear canal, the contact portion deforms to fit the connection portion. The first shading part is arranged on the connecting part and the contact part and is positioned at the same axial position, so that after the contact part is attached to the connecting part, the shading parts are arranged on the contact part and the connecting part, the possibility of light crosstalk is effectively reduced, and the detection accuracy is further improved.

In the earphone provided by the embodiment of the present disclosure, the light-transmitting portion may be a light-transmitting structure formed by a transparent material, and light may directly pass through the transparent material; or a light hole which is arranged in a penetrating way, and light rays directly penetrate out through the light hole. Similarly, the light shielding portion may also be a light shielding structure formed by an opaque material, such as light shielding ink, which can block light from passing through; it may be a light shielding member provided separately, such as a light shielding plate structure. The embodiment of the disclosure provides various modes for the light-transmitting part and the light-shielding part, and is convenient to process and implement.

The elastomer earplug provided by the embodiment of the disclosure, be equipped with first printing opacity portion and first shading portion on the earplug, first printing opacity portion is corresponding to the position of light source and sensor, thereby make light can see through the earplug and get into human skin tissue, and first shading portion is corresponding to the position between light source and the sensor, thereby before light that the light source sent gets into human skin tissue, carry out the separation to the light, avoid light directly to get into the sensor through the inside scattering of elastomer, effectively reduced the light crosstalk problem, improve photoelectric detection's accuracy.

Drawings

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

Fig. 1 is a schematic diagram of a headset according to some embodiments of the present disclosure.

Fig. 2 is a schematic cross-sectional view of an earphone according to some embodiments of the present disclosure.

Fig. 3 is an exploded view of the structure of a headset according to some embodiments of the present disclosure.

Fig. 4 is a wearing schematic diagram of an earphone according to some embodiments of the present disclosure.

Fig. 5 is a schematic cross-sectional view of an earphone according to further embodiments of the present disclosure.

Description of reference numerals:

100-body; 110-a housing; 120-a photodetection component; 121-a light source; 122-a sensor; 130-a first bracket; 131-second light-shielding portion; 140-a second support; 141-assembly position; 200-an earplug; 210-a connecting portion; 220-a contact portion; 230-first light-shielding portion; 241. 242-light transmission holes; 300-skin tissue.

Detailed Description

The technical solutions of the present disclosure will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure. In addition, technical features involved in different embodiments of the present disclosure described below may be combined with each other as long as they do not conflict with each other.

Increasingly, intelligent wearable devices integrate human physiological parameter detection functions, such as heart rate detection functions. To human heart rate detection, intelligence wearing equipment generally adopts the photoplethysmography PPG principle to detect, for example intelligent wrist-watch, bracelet etc. when carrying out heart rate detection, require the photoelectric detection subassembly of equipment to hug closely human skin to avoid the crosstalk problem, improve and detect the precision.

For an intelligent earphone, the photoelectric detection component is generally arranged at an ear-entering part of the earphone, and the ear-entering part refers to a part of the earphone extending into an ear canal of a human body. This is because, it is the most firm with human duct skin contact to go into the ear, is difficult for appearing because the detection clearance that user's body motion leads to, and human rhythm of the heart of the body of can relatively accurate detection, therefore the position of going into the ear of earphone is located to the photoelectric detection subassembly. Meanwhile, the earphone needs to be fixedly worn between the ear-entering part and the skin of the human auditory canal through the elastic body earplug. The elastic body earplug is a silica gel plug, the silica gel plug has elastic deformation capacity, the diameter of the silica gel plug is generally slightly larger than that of the human auditory canal, so that the elastic body earplug can be elastically deformed when being plugged into the auditory canal, and the earphone is fixedly worn in the human auditory canal.

In the correlation technique, in order not to influence the work of photoelectric detection subassembly, generally set up the silica gel stopper into transparent material for the light that the light source launched and the light that the sensor received can see through the silica gel stopper, realize heart rate detection. However, from an optical point of view, the transparent earplug is equivalent to a diffuser with a certain thickness, and when light penetrates through the earplug, the light is reflected or scattered in the earplug for many times, so that part of the light directly enters the sensor, and the crosstalk problem is caused.

In order to solve the problem of crosstalk caused by the elastomer earplug, the related inventive concept is as follows: the earplug at the position of the photoelectric detection component is provided with the light hole, so that light emitted by the light source and light penetrating out of skin tissues can be transmitted through the light hole. However, since the elastomer earplug has a certain thickness, light emitted from the light source still reflects once or more times in the space of the light hole before entering the skin tissue of the human body, so that part of the light directly reflects into the sensor before entering the skin tissue of the human body, which causes a certain crosstalk problem and affects the detection accuracy.

Based on the technical problems in the related art, the embodiments of the present disclosure provide an elastic body earplug and a headphone, and at least one inventive concept of the disclosed solution is: the light shielding part is arranged at the position, corresponding to the position between the light source and the sensor, on the elastomer earplug, so that the light source and the sensor are completely isolated before light rays of the light source enter skin tissues of a human body, the problem of light crosstalk caused by the elastomer earplug is reduced, and the detection accuracy is improved.

In some embodiments, the present disclosure provides headphones comprising a headphone body and an elastomeric earplug. The main body refers to the main structure of the earphone, such as the shell, the processor, the sound production unit and the like, which realize the basic functions of the earphone. In the embodiment of the present disclosure, the specific structure and the working principle of the earphone body are not improved, and those skilled in the art can certainly implement these structures and functions based on the related technology, so that the detailed description of the present disclosure is omitted.

One side of body is equipped with into the ear, goes into ear and indicates that the earphone stretches into wearing and the sound conduction structure of human duct, goes into ear and is equipped with the photoelectric detection subassembly to realize for example photoelectric detection functions such as human heart rate detection. The photoelectric detection assembly comprises a light source and a sensor, the light source is suitable for emitting light towards the outside of the ear, and the sensor is suitable for receiving reflected light entering the outside of the ear. The elastic body earplug is sleeved outside the ear, the earplug can generate elastic deformation under the action of external force, and the diameter of the earplug is generally slightly larger than that of the human ear canal, so that the earplug generates elastic deformation under the extrusion of the human ear canal, and the fixed wearing of the earphone is realized.

The elastic earplug is provided with a first light-transmitting part suitable for light to transmit 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 penetrating out of skin tissues can transmit the earplug.

In an exemplary embodiment, the first light-transmitting portion may be a light-transmitting structure formed of a transparent material. For example, the entire body portion of the earplug is made of a fully transparent material; for another example, the ear plugs are made of a transparent material only at locations corresponding to the light source and the sensor. Namely, at least the position of the earplug corresponding to the light source and the sensor is made of transparent materials, so that light can be ensured to penetrate through.

In another exemplary embodiment, the first light-transmissive portion may be a light-transmissive hole opened through the earplug. For example, light-transmitting holes are formed in the earplugs at positions corresponding to the light source and the sensor, respectively, so that light can directly pass through the light-transmitting holes.

The elastic earplug is provided with a first shading part which is suitable for blocking light from passing through at a position between the corresponding light source and the sensor, so that the light emitted by the light source is completely separated by the first shading part before entering the skin tissue and cannot enter the sensor.

In an exemplary embodiment, the first light shielding portion may be a light shielding structure formed of a light opaque material. For example, the whole body of the earplug is made of a light-proof material, and the earplug adopts a light-transmitting structure only at two parts corresponding to the light source and the sensor; for another example, the entire body portion of the earplug may be made of a transparent material, and the earplug may be blocked with an opaque material only at locations corresponding to locations between the light source and the sensor.

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

In summary, it can be understood that in the embodiments of the present disclosure, the first light-transmitting portion is used to ensure that light is transmitted through the earplug to realize photodetection. The first light shielding part is used for preventing light from directly entering the sensor before entering skin tissues, so that the light crosstalk problem is caused. On the basis of the foregoing disclosure, those skilled in the art can certainly implement the above-described embodiments, and the implementation means of the first light-transmitting portion and the first light-shielding portion is not limited to the foregoing examples.

By the foregoing, the earphone provided by the embodiment of the present disclosure is provided with the first light shielding portion at the position between the corresponding light source and the sensor on the earplug, so that before light emitted by the light source enters the skin tissue of the human body, the light is blocked, the light is prevented from directly entering the sensor through scattering inside the elastomer, the problem of crosstalk is effectively reduced, and the accuracy of photoelectric detection is improved.

Fig. 1 to 4 show a specific embodiment of an earplug and a headphone according to the present disclosure, which will be described in detail below with reference to fig. 1 to 4.

In this embodiment, the present disclosure provides a headset comprising a body and an elastomeric earplug 200. The main body refers to the main structure of the earphone, and as shown in fig. 1, the main body includes an earphone housing 110 and functional modules such as a processor, a sound generating unit and others disposed in the housing 110. In fig. 1, only a partial structure of the housing 110 is shown, and various functional modules included in the body are not shown. The shape and structure of the body may be any shape and structure suitable for implementation, and are not limited to those shown in the present embodiment. Moreover, various functional modules included in the body can be realized by those skilled in the art on the basis of the related technology without any doubt, and are not described in detail in this embodiment.

An ear insertion part is arranged at one side of the shell 110 of the body, the ear insertion part is a part extending into the auditory canal of a human body, the shape of the ear insertion part is generally approximate to a cylinder shape so as to be matched with the auditory canal of the human body, and a sound cavity for transmitting sound of the earphone is generally arranged in the middle of the ear insertion part. In this embodiment, the ear insertion portion includes a first support 130, the first support 130 is a substantially cylindrical structure, one end of the first support is fixedly connected to the outer shell 110 of the body, and the other end of the first support extends outward to form an ear insertion structure suitable for extending into the ear canal of the human body. The inner cavity of the first support 130 extends axially therethrough to form a sound cavity for transmitting sound from the earphone.

The body also includes a photo detection assembly 120 for use in, for example, heart rate detection of a human body. In this embodiment, the photodetection assembly 120 is fixedly disposed in the inner cavity of the first bracket 130, and the detection end of the photodetection assembly 120 faces one radial side of the first bracket 130. For example, as shown in fig. 2, the light source 121 of the photoelectric detection assembly 120 and the detection end of the sensor 122 are both directed upward, so as to detect the skin assembly on the upper side of the ear canal of the human body. Specifically, the photodetecting assembly 120 is fixedly mounted in the first bracket 130 through the second bracket 140, as shown in fig. 3, the second bracket 140 is also of an approximately cylindrical structure, and the outer wall of one side in the radial direction is provided with a mounting position 141, for example, in an exemplary embodiment, the mounting position 141 is a stepped plane, so that the photodetecting assembly can be fixedly mounted on the mounting position 141 of the second bracket 140 by means of bonding or the like, and then the second bracket 140 is fixedly mounted in the inner cavity of the first bracket 130, so that the detection end of the photodetecting assembly abuts against the inner wall of the first bracket 130.

As can be seen from the sectional structure of fig. 2, in the present embodiment, since the photodetection assembly 120 is disposed in the inner cavity of the first bracket 130, light emitted or received by the photodetection assembly 120 also needs to pass through the side wall of the first bracket 130, and the light transmitting and shielding structure of the first bracket 130 is described in detail below.

It should be particularly noted that the light-transmitting and light-shielding structure of the first support 130 is not essential to the present disclosure, depending on the assembling structure of the photodetecting assembly 120. For example, in other embodiments, the light source 121 and the sensor 122 may be embedded and mounted on the outer wall of the first bracket 130, and the detecting ends of the light source 121 and the sensor 122 are flush with the outer wall surface of the first bracket 130, so that light does not need to pass through the side wall of the first bracket 130, and the light transmission and shielding problems of the first bracket 130 do not need to be considered.

In summary, one of the main inventive concepts of the disclosed aspects lies in: before the light of the light source enters the human skin tissue 300, the light source end and the sensor end are always kept in an isolated state. Under this concept, it is no doubt that the skilled person can implement the disclosed solution according to the specific assembly structure of the photodetecting assembly 120.

Continuing back to the embodiment shown in fig. 1 to 4, in this embodiment, the light of the photodetection assembly needs to pass through the sidewall of the first support 130, so the first support 130 is provided with the second light-transmitting portion and the second light-shielding portion 131.

Specifically, the first holder 130 is provided with a second light-transmitting portion adapted to transmit light at least at a position corresponding to the light source 121 and the sensor 122, so that light emitted from the light source 121 and light transmitted from the skin tissue 300 can be transmitted through the first holder 130.

In an exemplary embodiment, the second light-transmitting portion may be a light-transmitting structure formed of a transparent material. For example, as shown in fig. 3, the entire main body of the first bracket 130 is made of a transparent material; for another example, the first support 130 may be made of a transparent material only at the positions corresponding to the light source 121 and the sensor 122. That is, at least the positions of the first support 130 corresponding to the light source 121 and the sensor 122 are made of transparent materials to ensure the light to pass through.

In another exemplary embodiment, the second light-transmitting portion may be a light-transmitting hole opened on the first bracket 130 therethrough. For example, two light holes are respectively formed in the first frame 130 at positions corresponding to the light source 121 and the sensor 122, so that light can directly pass through the light holes.

Similarly, considering that the first support 130 is a fully transparent structure, there is a certain crosstalk problem inside the first support. Therefore, in the present embodiment, the first bracket 130 is provided with the second light-shielding portion 131 adapted to block light from passing through at a position corresponding to a position between the light source 121 and the sensor 122, so that the light emitted from 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.

In an exemplary embodiment, the second light shielding portion 131 may be a light shielding structure formed of a light opaque material. For example, the entire main portion of the first support 130 is made of a light-impermeable material, and the first support 130 is made of a light-permeable structure only in two portions corresponding to the light source 121 and the sensor 122; for another example, the whole main body of the first support 130 is made of transparent material, and the first support 130 is blocked by opaque material only at the position corresponding to the position between the light source 121 and the sensor 122.

In another exemplary embodiment, the second light shielding portion 131 may also be a light shielding member disposed on the first bracket 130. For example, as shown in fig. 3, the entire first support 130 is made of a transparent material, and a light blocking plate is disposed on the first support 130 at a position corresponding to a position between the light source 121 and the sensor 122, thereby separating the light source 121 and the sensor 122.

In summary, it can be understood that in the present embodiment, the second light-transmitting portion is used to ensure that light is transmitted through the first support 130, so as to realize photoelectric detection. The second light-blocking portion prevents light from directly entering the sensor 122 before passing through the first bracket 130, which may cause crosstalk. On the basis of the foregoing disclosure, those skilled in the art can certainly implement the above-described embodiments, and the implementation means of the second light-transmitting portion and the second light-shielding portion is not limited to the foregoing examples.

The above description of the main structure of the earphone body is continued by the following description of the structure and principle of the elastomer earplug 200 provided in the embodiment of the present disclosure.

The elastomer earplug 200 is sleeved on the outer wall of the first support 130, thereby circumferentially covering the first support 130. Specifically, as shown in fig. 3, in the present embodiment, the earplug 200 includes a connecting portion 210 and a contact portion 220, and the connecting portion 210 is a cylinder shape adapted to the outer wall of the first bracket 130, so that the earplug 200 can be fitted on the first bracket 130 by the fitting of the connecting portion 210 and the first bracket 130. The contact portion 220 is shaped like a bowl, and one end of the contact portion is integrally formed with the connecting portion 210, and the other end of the contact portion is a free end, so as to be elastically deformed under an external force.

Since the contact portion 220 of the earplug 200 directly contacts the skin of the ear canal of the human body, the whole earplug 200 can be made of an elastomer material with high skin-friendliness, such as silicone rubber. When the user wears the earphone, the contact portion 220 is deformed in a direction of being attached to the connection portion 210 by being pressed by the ear canal of the human body, and the worn state is as shown in fig. 4, in which the contact portion 220 is completely attached to the connection portion 210.

In this embodiment, the main structure of the earplug 200 is made of a completely transparent material, so that light can directly penetrate through the earplug 200, and the transparent portion of the earplug 200 forms the first light-transmitting portion. Meanwhile, on the earplug 200 between the light source 121 and the sensor 122, a black ring is provided, and the black ring forms the first light shielding portion 230. Specifically, as shown in fig. 3 and 4, black rings are provided on both the connecting portion 210 and the contact portion 220 of the earplug 200, and both rings are located at the same axial position, so that in the wearing state of the headphone, the two rings separate the entire thickness of the earplug 200 in the radial direction, so that light does not cross.

For the black ring-grain structure, considering that black has a property of absorbing any light, for example, a light-shielding ink may be used to form the black ring-grain 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 may be made of a material that is not transparent to light; or may be implemented with a light shield over the earplug 200, etc. Moreover, the black ring is used to block the light source 121 and the sensor 122, so the ring may be a circle, or a small portion (e.g. a half-circle) may be provided on one side of the photo-detection assembly. It will be appreciated by those skilled in the art that the present embodiments do not limit the present disclosure.

The first light shielding portion 230 may be provided in one of the connecting portion 210 and the contact portion 220 of the earplug 200, and may play a role of reducing crosstalk to some extent, but the effect is not so good as that of providing the first light shielding portion 230 at the same time. For example, considering that the contact portion 220 of the earplug 200 is very thin and the crosstalk problem caused by internal scattering is very small, in order to improve the appearance integrity of the contact portion 220, only the connecting portion 210 may be provided with a black ring pattern, but not the contact portion 220, which also plays a role of reducing crosstalk and makes the appearance of the earplug 200 look more integral and beautiful.

Fig. 5 shows another specific embodiment of the present disclosure, and in this embodiment, the difference from the foregoing embodiment is in the structure of the first light transmission portion, and the foregoing embodiment may be referred to for other portions, and details are not repeated here.

As shown in fig. 5, in the present embodiment, the connecting portion 210 and the contact portion 220 are respectively provided with a light hole at a position corresponding to the light source 121 and the sensor 122 on the earplug 200, so that light emitted from the light source 121 can pass through the earplug 200 through the light hole 242, and light outside the earplug 200 can enter the sensor 122 through the light hole 241. Moreover, light holes may also be formed in the first support 130 at positions corresponding to the light source 121 and the sensor 122, so that in this embodiment, light does not need to penetrate through the earplug 200 and the first support 130, scattered light is reduced accordingly, and the detection effect can be further improved. The person skilled in the art can, of course, implement the present embodiment in combination with the foregoing embodiments of the present disclosure, and therefore, the detailed description is omitted here.

The structure of the elastomer earplug and the earphone in some embodiments of the disclosure is described above, and the operation principle of the earplug and the earphone of the disclosure is described below with reference to the embodiment of fig. 1.

During assembly, the photoelectric detection assembly 120 is fixed on the assembly position 141 of the second support 140, the assembled second support 140 is fixedly installed in the inner cavity of the first support 130, one end of the first support 130 is fixedly installed at one side of the shell 110 of the earphone body, and then the ear plug 200 is sleeved outside the first support 130 through the connecting portion 210, so that the earphone assembly is completed.

When the photo detection assembly 120 is operated, first, the light source 121 emits light, and the light sequentially passes through the second light-transmitting portion of the first bracket 130 and the first light-transmitting portion of the earplug 200, and then enters the skin tissue 300 of the human body. Part of the light rays are reflected by the tissue blood vessels and penetrate out of the skin, the penetrated light rays sequentially pass through the first light-transmitting part on the earplug 200 and the second light-transmitting part on the first support 130 and then are received by the sensor 122, and the processor demodulates the received light signals to obtain the heart rate of the human body.

Through the aforesaid, this elastomer earplug and earphone that this disclosure provided is equipped with first shading portion in the position between corresponding light source and the sensor on the earplug to before the light that the light source sent gets into human skin tissue, carry out the separation to the light, avoid light directly to get into the sensor through the inside scattering of elastomer, effectively reduced the crosstalk problem, improve photoelectric detection's accuracy.

It should be understood that the above embodiments are only examples for clearly illustrating the present invention, and are not intended to limit the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the present disclosure may be made without departing from the scope of the present disclosure.

Claims (10)

1. An earphone, comprising:

the photoelectric detection device comprises a body, wherein an ear-entering part is arranged on one side of the body, a photoelectric detection assembly (120) is arranged on the ear-entering part, the photoelectric detection assembly (120) comprises a light source (121) and a sensor (122), the light source (121) is suitable for emitting light towards the outside of the ear-entering part, and the sensor (122) is suitable for receiving the outside light of the ear-entering part;

elastomer earplug (200), the cover is located go into outside the ear, earplug (200) are gone up at least and are being equipped with the first printing opacity portion that is suitable for the light to see through in the position that corresponds light source (121) and sensor (122), and corresponding light source (121) with the position between sensor (122) is equipped with and is being suitable for stopping first shading portion (230) that the light passed through.

2. The headset of claim 1,

the ear entering part comprises a first support (130), one end of the first support (130) is fixedly arranged on the body, the other end of the first support extends towards one side departing from the body, and an inner cavity of the first support (130) axially penetrates through to form a sound cavity of the earphone;

the photoelectric detection assembly (120) is arranged in the inner cavity of the first bracket (130), and the light source (121) and the sensor (122) face one radial side of the first bracket (130); the first support (130) is provided with a second light-transmitting part suitable for light to transmit at least at a position corresponding to the light source (121) and the sensor (122), and a second shading part (131) suitable for blocking light to transmit is arranged at a position corresponding to a position between the light source (121) and the sensor (122).

3. The headset of claim 2,

earplug (200) including the cover locate connecting portion (210) on first support (130) outer wall, and one end with connecting portion (210) are connected and are located contact site (220) in the connecting portion (210) outside, contact site (220) be suitable for under the exogenic action towards with the direction of connecting portion (210) laminating takes place elastic deformation, first shading portion (230) are located connecting portion (210) with on at least one of contact site (220).

4. The headset of claim 3,

the first light shielding portion (230) is provided on the connecting portion (210) and the contact portion (220), and is located at the same axial position.

5. The headset of claim 1,

the first light-transmitting part is a light-transmitting structure formed by a transparent material; or the first light transmission part is a light transmission hole which penetrates through the earplug (200);

the first light shielding part (230) is a light shielding structure formed by opaque materials; alternatively, the first light shielding portion (230) is a light shielding member provided on the earplug (200).

6. The headset of claim 2,

the second light-transmitting part is a light-transmitting structure formed by a transparent material; or the second light transmission part is a light transmission hole which penetrates through the first support (130);

the second light shielding part (131) is a light shielding structure formed by a light-tight material; alternatively, the second light shielding portion (131) is a light shielding member provided on the first holder (130).

7. The headset of claim 2,

go into ear still includes second support (140), is equipped with on second support (140) and is used for the assembly photoelectric detection subassembly (120) assemble position (141), photoelectric detection subassembly (120) pass through second support (140) set firmly in first support (130) inner chamber.

8. An elastomeric ear plug adapted for use in an in-ear headphone, the headphone having an in-ear portion provided with a photo detection assembly (120), the photo detection assembly (120) comprising a light source (121) and a sensor (122), characterized in that,

the earplug (200) is suitable for being sleeved outside the ear inlet part, and a first light transmission part suitable for light transmission and a first shading part (230) suitable for preventing light transmission are arranged on the earplug (200);

when the earplug (200) is sleeved on the ear, the first light-transmitting part corresponds to the positions of the light source (121) and the sensor (122), and the first shading part (230) corresponds to the position between the light source (121) and the sensor (122).

9. The elastomeric earplug of claim 8,

earplug (200) includes connecting portion (210) and contact site (220), the one end of contact site (220) with connecting portion (210) are connected, just contact site (220) are located the connecting portion (210) outside, contact site (220) be suitable for under the exogenic action towards with the direction of connecting portion (210) laminating takes place elastic deformation, first shading portion (230) are located connecting portion (210) with on at least one of contact site (220).

10. The elastomeric earplug of claim 8,

the first light-transmitting part is a light-transmitting structure formed by a transparent material; or the first light transmission part is a light transmission hole which penetrates through the earplug (200);

the first light shielding part (230) is a light shielding structure formed by opaque materials; alternatively, the first light shielding portion (230) is a light shielding member provided on the earplug (200).

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