CN218352686U

CN218352686U - Earphone set

Info

Publication number: CN218352686U
Application number: CN202221911305.4U
Authority: CN
Inventors: 黄瑞朗; 韩志成; 蔡鸿盛; 罗永�
Original assignee: Shenzhen Goodix Technology Co Ltd
Current assignee: Shenzhen Goodix Technology Co Ltd
Priority date: 2021-07-19
Filing date: 2022-07-19
Publication date: 2023-01-20
Anticipated expiration: 2032-07-19
Also published as: CN217765293U; WO2023000140A1

Abstract

The embodiment of the application provides an earphone, including: an earphone housing; the earphone shell is enclosed into an earphone cavity, the earphone cavity extends outwards to form a sound guide pipe communicated with the outside, and the sound guide pipe is positioned on one side, close to the eardrum of an earphone wearer, of the earphone cavity; the physiological parameter detection module is contained in the sound guide tube and comprises a circuit board, a body temperature sensor and a heart rate sensor, wherein the body temperature sensor and the heart rate sensor are arranged on the circuit board; the body temperature sensor is used for acquiring a body temperature sensing signal and transmitting the body temperature sensing signal through the circuit board so as to detect body temperature data; the heart rate sensor is used for acquiring heart rate sensing signals and transmitting the heart rate sensing signals through the circuit board so as to detect heart rate data. The earphone that this application embodiment provided has improved the convenience and the reliability that heart rate detected and body temperature detected to physiological parameter detects the structure of module compacter, has practiced thrift the inner space of earphone.

Description

Earphone set

Technical Field

The embodiment of the application relates to the technical field of physiological parameter detection, in particular to an earphone.

Background

The earphone is a common entertainment tool in people's life, and along with the development of wearable equipment and people's concern about self health, the earphone that has physiological parameter detection function has more and more market value.

For contact body temperature sensing schemes, it is most common to have a body temperature sensor in close proximity to the skin to measure the skin temperature of the user. For contact heart rate detection schemes, it is most common to have a heart rate sensor that is in close proximity to the skin to measure the heart rate data of the user.

However, the above-mentioned contact body temperature detection scheme or contact heart rate detection scheme both need to be in close contact with the skin to test more accurate data, however, in a complicated and changeable human ear structure, it is difficult to find two positions simultaneously to respectively satisfy the above-mentioned detection conditions, thereby resulting in that it is difficult to realize reliable detection of two physiological parameters of body temperature and heart rate through an earphone.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present application provide a headset to at least partially solve the above problems.

The embodiment of the application provides a headset, include: an earphone housing; the earphone shell is enclosed into an earphone cavity, the earphone cavity extends outwards to form a sound guide pipe communicated with the outside, and the sound guide pipe is positioned on one side of the earphone cavity, which is close to an eardrum of an earphone wearer; the physiological parameter detection module is contained in the sound guide tube and comprises a circuit board, and a body temperature sensor and a heart rate sensor which are arranged on the circuit board; the body temperature sensor is used for acquiring a body temperature sensing signal in an ear canal of the earphone wearer and transmitting the body temperature sensing signal through the circuit board so as to detect body temperature data of the earphone wearer; the heart rate sensor is used for acquiring a heart rate sensing signal of the earphone wearer and transmitting the heart rate sensing signal through the circuit board so as to detect heart rate data of the earphone wearer.

In another implementation of the present application, the headset further comprises an earcap; the earphone shell also comprises a sound guide tube wall which is sleeved in the earcap and used for defining the sound guide tube; the sound guide tube wall is provided with a light-transmitting part, and the heart rate sensor acquires the heart rate sensing signal through the light-transmitting part.

In another implementation of the present application, the heart rate sensor includes: an optical emitter and an optical detector; wherein the optical transmitter is configured to emit a detection light signal and to pass the detection light signal through the light-transmitting portion; the light detector is used for receiving a reflected light signal obtained after the detected light signal is reflected by the earphone wearer and converting the reflected light signal into the heart rate sensing signal.

In another implementation of the present application, the body temperature sensor includes: a first temperature sensor and a second temperature sensor; first temperature sensor with second temperature sensor follows in proper order the extending direction of leading note pipe sets up, first temperature sensor for the second temperature sensor is closer to earphone wearer's eardrum.

In another implementation manner of the present application, the circuit board is formed as a rigid-flex board, and the heart rate sensor and the body temperature sensor are disposed on a rigid portion of the rigid-flex board; the heart rate sensor is arranged between one side of the circuit board and the sound guide pipe wall, and the body temperature sensor is arranged on the other side of the circuit board.

In another implementation of the present application, the circuit board is formed as a flexible circuit board that is bent to form a first circuit board and a second circuit board; the second side of the first circuit board is opposite to the first side of the second circuit board; the heart rate sensor is arranged between the first side of the first circuit board and the sound guide tube wall, and the body temperature sensor is arranged on the second circuit board.

In another implementation of the present application, the body temperature sensor is disposed between the second side of the second circuit board and the sound guide tube wall, and the second side of the first circuit board is attached to the first side of the second circuit board.

In another implementation of the present application, a first reinforcing patch is attached to the second side of the first circuit board, a second reinforcing patch is attached to the first side of the second circuit board, and the first reinforcing patch is attached to the second reinforcing patch.

In another implementation of the present application, the body temperature sensor is disposed between the second side of the second circuit board and the sound guide tube wall; a first reinforcing patch is attached to the second side of the first circuit board, a second reinforcing patch is attached to the first side of the second circuit board, and a gap is formed between the first reinforcing patch and the second reinforcing patch; the first circuit board is arranged on one radial side of the sound guide tube wall, and the second circuit board is arranged on the other radial side of the sound guide tube wall.

In another implementation manner of the present application, the flexible circuit board is bent to form the first circuit board and the second circuit board via a bending portion, and the bending portion is spaced between the first circuit board and the second circuit board.

According to the technical scheme that this application embodiment provided, body temperature sensor and rhythm of the heart sensor in the physiological parameter detection module all set up in the leading sound pipe of earphone, corresponding to the ear canal position of earphone human ear under the wearing state, improved the convenience and the reliability that rhythm of the heart detected and body temperature detected to make the structure of physiological parameter detection module compacter, in order to practice thrift the inner space of earphone.

Drawings

Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of an earphone according to an embodiment of the present application.

Fig. 2 is various views of an exemplary physiological parameter sensing module of the embodiment of fig. 1.

Fig. 3A is various views of another exemplary physiological parameter detection module of the embodiment of fig. 1.

Fig. 3B is a side view of an example of a headset in which the physiological parameter sensing module of fig. 3A is located.

Fig. 3C is a cross-sectional view of the headset illustrated in fig. 3B.

Fig. 3D is a side view of another example of the headset with the physiological parameter sensing module of fig. 3A located therein.

Fig. 3E is a cross-sectional view of the headset of the example of fig. 3D.

Fig. 4A is a schematic structural diagram of an earphone according to another embodiment of the present application.

Fig. 4B is a schematic diagram of a headset and an ear according to another embodiment of the present disclosure.

Fig. 5A is a schematic structural diagram of an earphone with a first spacer according to another embodiment of the present application.

Fig. 5B is a schematic structural diagram of an earphone with an air gap according to another embodiment of the present application.

Fig. 5C is a schematic structural diagram of an earphone with a second spacer according to another embodiment of the present application.

Fig. 6 is an exploded view of a body temperature sensor according to another embodiment of the present application.

Fig. 7 is another schematic structural diagram of an earphone according to another embodiment of the present application.

Fig. 8 is a schematic diagram of an electrical connection between a body temperature sensor and a processor according to another embodiment of the present application.

FIG. 9 is a schematic view of another electrical connection of a body temperature sensor and a processor according to another embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

In this application, the directional terms "upper", "lower", "front", "rear", and the like are defined with respect to the schematically-disposed orientation of components in the drawings, and it is to be understood that these directional terms are relative concepts that may be changed according to the change in the orientation in which the components are disposed in the drawings.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, identical element in a process, method, article, or apparatus that comprises the element.

The embodiment of the application provides an earphone. As shown in fig. 1, the headphone 10 includes: the earphone comprises an earphone shell 11, wherein the earphone shell 11 is enclosed to form an earphone cavity, the earphone cavity extends outwards to form a sound guide tube 14 communicated with the outside, and the sound guide tube 14 is positioned on one side of the earphone cavity, close to an eardrum 202 of an earphone wearer, and can be communicated with an ear canal 201; and a physiological parameter detecting module 110 accommodated in the sound guide tube 14, wherein the physiological parameter detecting module 110 includes a circuit board 19, and a body temperature sensor 12 and a heart rate sensor 32 disposed on the circuit board 19. Specifically, the circuit board 19 may be fixed to the earphone housing 11 by an adhesive added by means such as dispensing.

The body temperature sensor 12 is configured to acquire a body temperature sensing signal in an ear canal 201 of the earphone wearer and transmit the body temperature sensing signal through the circuit board 19 to detect body temperature data of the earphone wearer. The heart rate sensor 32 is used for acquiring a heart rate sensing signal of the earphone wearer and transmitting the heart rate sensing signal through the circuit board 19 so as to detect heart rate data of the earphone wearer.

Specifically, the body temperature sensor 12 may include: a first temperature sensor 121 and a second temperature sensor 122. The first temperature sensor 121 and the second temperature sensor 122 are fixed in the sound guide tube 14 in sequence along the extending direction of the sound guide tube 14, and the first temperature sensor 121 is closer to the eardrum 201 of the earphone wearer than the second temperature sensor 122. With the track shown by the dotted line 210, the temperature of the eardrum 202 in the ear 200 is the highest, and heat is conducted from strong to weak along the direction of the ear canal 201, so that the arrangement can make the heat received by the first temperature sensor 121 and the second temperature sensor 122 generate a difference, and further generate a temperature difference between the first temperature sensor 121 and the second temperature sensor 122, based on the temperature difference, the ear canal temperature of the earphone wearer can be accurately obtained, and the ear canal temperature of the human body can accurately reflect the real temperature of the human body, thereby improving the accuracy of body temperature detection.

The heart rate sensor 32 may include: an optical emitter 321 and an optical detector 322; the optical transmitter 321 is configured to transmit a detection light signal, and the optical detector 322 is configured to receive a reflected light signal obtained by reflecting the detection light signal by a wearer of the headset.

Further, the earphone 10 may further include an ear cap 22, and the earphone housing 11 further includes a sound guide tube wall 141 sleeved in the ear cap 22 and used for defining the sound guide tube 14, where the sound guide tube wall 141 has a light-transmitting portion through which the heart rate sensor 32 can obtain the heart rate sensing signal. Preferably, the ear cap 22 is made of a light-transmissive material.

In particular, the heart rate sensor 32 may acquire a heart rate sensing signal through a trace shown by dashed line 209 in fig. 1. The optical transmitter 321 transmits a detection optical signal through the light-transmitting portion, the detection optical signal is reflected by the wearer of the headset to obtain a reflected optical signal, and the optical detector 322 receives the reflected optical signal and converts the reflected optical signal into a heart rate sensing signal. The Light emitter 321 may be a Light Emitting element such as a Light Emitting Diode (LED), an organic Light Emitting Diode, or a phosphor, and is capable of Emitting one or more combinations of visible Light (e.g., green Light or red Light) or infrared Light with a specific wavelength as the detection Light signal to the earphone wearer. The photodetector 322 may be specifically a photoelectric conversion element such as a Photodiode (PD), a phototransistor, an avalanche photodiode, or a photomultiplier, and can receive a reflected light signal containing heart rate information and perform photoelectric conversion on the reflected light signal to generate a heart rate sensing signal.

In the heart rate detection process, light with a certain wavelength is emitted from the light emitter 321 along the same direction, and sequentially passes through the light transmission part of the sound guide tube wall 141 and the light transmission silica gel ear cap 22 to be incident to the ear skin of the earphone wearer, after the light is reflected, scattered and absorbed by subcutaneous tissues, a part of the light can be reflected from the surface of the skin and is received by the light detector 322, and the blood volume of the subcutaneous tissues is pulsated along with the rhythm of the heart, so that the light intensity received by the light detector 322 is pulsated. The heart rate sensing signal can be obtained by converting the light intensity change signal into an electric signal, namely, a PPG (photoplethysmography) wave representing the change of the blood volume of the subcutaneous tissue along with the pulse by utilizing a PPG (photoplethysmography), and a heart rate value is calculated according to the PPG wave.

During the physiological parameter detecting process, the earphone 10 is worn on the ear 200 of the earphone wearer, and can be stably clamped on the ear 200 by the tension of the earphone shell 11 and the ear cap 22.

In the embodiment of the present application, the circuit board 19 may be directly connected to the main control chip of the earphone 10, or may be indirectly connected to a control device (e.g., a host) of the earphone 10 to implement heart rate detection and body temperature detection.

In the scheme of this application embodiment, body temperature sensor and rhythm of the heart sensor among the physiological parameter detection module set up in the leading sound pipe of earphone, can accomplish the detection of two kinds of physiological parameters of body temperature data and rhythm of the heart data simultaneously, and when the earphone was in wearing the state, the position of leading sound pipe is corresponding to earphone person's ear canal position, because human ear canal temperature can accurately reflect human true temperature, and have abundant vascular structure, so can improve convenience and the reliability that rhythm of the heart detected and body temperature detected, and can adapt to different people's ear structures well, furthermore, body temperature sensor and rhythm of the heart sensor set up on the circuit board, can make the structure of physiological parameter detection module compacter, in order to practice thrift the inner space of earphone.

In some examples, the physiological parameter detection module 110 is disposed inside the sound guide tube wall 141. Fig. 2 (a) -2 (c) sequentially show a top view, a side view and a bottom view of the physiological parameter detection module 110, as shown in fig. 2 (a) -2 (c), the heart rate sensor 32 includes a light emitter 321 and a light detector 322.

With further reference to fig. 1, in one example, the heart rate sensor 32 is disposed between one side of the circuit board 19 and the sound guide tube wall 141, and the body temperature sensor 12 is disposed on the other side of the circuit board 19.

Specifically, the circuit board 19 may be formed as a rigid-flex board, and the heart rate sensor 32 and the body temperature sensor 12 are disposed on the rigid portion 191 of the rigid-flex board. Preferably, the heart rate sensor 32 and the body temperature sensor 12 are correspondingly arranged on two sides of the rigid part 191; specifically, the heart rate sensor 32 is disposed between one side of the circuit board 19 and the sound guide tube wall 141, and the body temperature sensor 12 is disposed on the other side of the circuit board 19.

In other examples, fig. 3A (a) -3A (c) sequentially show a top view, a side view, and a bottom view of the physiological parameter detecting module 110, as shown, the Circuit board 19 may be formed as a Flexible Printed Circuit (FPC), and the Flexible Circuit board 19 is bent to form the first Circuit board 191 and the second Circuit board 192. After bending, the second side of the first circuit board 191 is opposite to the first side of the second circuit board 192. For example, before bending, the first side of the first circuit board 191 and the second side of the second circuit board 192 are located on the same side, i.e., the side of the flexible circuit board 19 before bending, thereby improving the compactness of the heart rate sensor 32 and the body temperature sensor 12 and reducing the design complexity.

Referring to fig. 3B-3E, the heart rate sensor 32 is disposed between the first side of the first circuit board 191 and the sound guide tube wall 141, and the body temperature sensor 12 is disposed on the second circuit board 192.

In some examples, as shown in fig. 3B and 3C, the body temperature sensor 12 is disposed between the second side of the second circuit board 192 and the sound guide tube wall 141. The second side of the first circuit board 191 is attached to the first side of the second circuit board 192. Fig. 3C isbase:Sub>A cross-sectional view taken along the dashed linebase:Sub>A-base:Sub>A in fig. 3B, and it can be seen that the heart rate sensor 32 and the body temperature sensor 12 are both disposed on one radial side of the sound guide tube wall 141.

Further, a first reinforcing patch is attached to the second side of the first circuit board 191, a second reinforcing patch is attached to the first side of the second circuit board 192, and the first reinforcing patch and the second reinforcing patch are attached. Setting up of first reinforcement paster and second reinforcement paster has improved heart rate sensor 32 and body temperature sensor 12's structural stability, and then improved heart rate sensor 32 and body temperature sensor 12's detection reliability, because before buckling, heart rate sensor 32 and body temperature sensor 12 set up in one side of flexible circuit board 19, both 190 of first reinforcement paster and second reinforcement paster set up in the opposite side of flexible circuit board 19, so show processing and the assembly efficiency that has improved physiological parameter detection module, overall structure's design complexity has been reduced.

Further, the first reinforcing patch and the second reinforcing patch may be bonded to each other with an adhesive such as a double-sided tape.

In other examples, as shown in fig. 3A, the flexible circuit board 19 is bent via a bent portion 193 to form a first circuit board 191 and a second circuit board 192, the bent portion 193 being spaced between the first circuit board 191 and the second circuit board 192.

As shown in fig. 3D and 3E, wherein fig. 3E is a cross-sectional view taken along a dotted line B-B in fig. 3D, it can be seen that the first circuit board 191 is disposed at one side of the sound guide tube wall 141 in the radial direction, and the second circuit board 192 is disposed at the other side of the sound guide tube wall 141 in the radial direction. The second side of first circuit board 191 is provided with first reinforcement paster, the first side of second circuit board 192 is provided with the second reinforcement paster, and there is the interval between first reinforcement paster and the second reinforcement paster, similar with last example, the structural stability of heart rate sensor and body temperature sensor has been improved in setting up of first reinforcement paster and second reinforcement paster, and then the detection reliability of heart rate sensor and body temperature sensor has been improved, because before buckling, heart rate sensor and body temperature sensor set up in one side of flexible circuit board 19, both 190 of first reinforcement paster and second reinforcement paster set up in the opposite side of flexible circuit board 19, the processing and the assembly efficiency that have showing and have improved physiological parameter detection module, overall structure's design complexity has been reduced.

Examples of the arrangement of the body temperature sensor 12 in the earphone 10 will be described below with reference to fig. 4A to 4B, fig. 5A to 5C, and fig. 6 to 9.

Fig. 4A is a schematic structural diagram of an earphone according to an embodiment of the present application. As shown, the headset 10 includes: the earphone comprises an earphone shell 11 and a body temperature sensor 12 accommodated in the earphone shell 11, wherein the earphone shell 11 is enclosed into an earphone cavity 13, and the earphone cavity 13 extends outwards to form a sound guide tube 14 communicated with the outside.

Fig. 4B is a schematic diagram of a headset and a human ear according to an embodiment of the present disclosure. Referring to fig. 4A and 4B, the sound guiding tube 14 is located on one side of the earphone cavity 13 close to the eardrum 202, and the body temperature sensor 12 includes at least two temperature sensors (for example, a first temperature sensor 121 and a second temperature sensor 122 are shown in fig. 4A), and the first temperature sensor 121 and the second temperature sensor 122 are fixed in the sound guiding tube 14 along the direction of the sound guiding tube 14. With this arrangement, the heat received by the first temperature sensor 121 and the heat received by the second temperature sensor 122 can be differentiated, so as to generate a temperature difference between the body temperature sensor 121 and the body temperature sensor 122, and the body temperature data of the user can be calculated by combining with a corresponding algorithm, it should be understood that the number of the body temperature sensors is not limited by fig. 4A.

Fig. 5A is a schematic structural diagram of an earphone with a first spacer according to an embodiment of the present disclosure. As shown, of the at least two temperature sensors (the first temperature sensor 121 and the second temperature sensor 122 are shown in fig. 5A), the first spacer 15 is disposed between each two temperature sensors. The first spacer 15 can reduce the thermal conductivity between at least two temperature sensors, and by adjusting the thickness and/or material of the first spacer, the temperature difference between the first temperature sensor 121 and the second temperature sensor 122 can be controlled, and the temperature difference can be adjusted to a proper value, and the body temperature to be measured can be calculated by combining with a corresponding algorithm. Illustratively, the first spacer 15 with a larger thickness is selected, so that the temperature difference between the first temperature sensor 121 and the second temperature sensor 122 becomes larger, which is beneficial for the calculation of the algorithm, and in combination with the corresponding algorithm, the calculation error can be reduced.

The material of the first spacer 15 is a material with a low thermal conductivity, preferably plastic or foam, and the material of the first spacer 15 is not particularly limited in the embodiments of the present application. The material with low heat conductivity coefficient is selected, so that the temperature difference between the at least two temperature sensors 15 is increased, algorithm calculation is facilitated, and calculation errors can be reduced by combining the corresponding algorithm.

In an alternative embodiment, as shown in FIG. 5B, an air gap 16 is provided between the outer surface of the body temperature sensor 12 and the inner wall of the leading sound 14 to surround the outer surface of the body temperature sensor. By adopting the scheme of the embodiment, the air gap 16 can play a role in heat insulation, the influence of the external environment on the body temperature sensor 12 is reduced, and the accuracy of body temperature detection is improved. At the same time, the air gap 16 is also a sound guide path.

In another implementation of the present application, as shown in fig. 5C, the earphone 10 further includes a second spacer 17, and the second spacer 17 is disposed on the surface of the body temperature sensor 12. By adopting the scheme of the embodiment, the second spacer 17 is sleeved on the surface of the body temperature sensor 12, so that the influence of the external environment on the body temperature sensor 12 can be reduced, and the temperature detection is more accurate. The material of the second spacer 17 may be any material with low thermal conductivity, and the material of the second spacer in the embodiment of the present application is not particularly limited, and may be, for example, foam or the like.

Fig. 6 is an exploded schematic view of a body temperature sensor according to an embodiment of the present application. The body temperature sensor 12 includes a first temperature sensor 121 and a second temperature sensor 122.

The first temperature sensor 121 includes: a first temperature sensor 1211, a first heat-conducting member 1212, a first support member 1213, a first cavity 12121 disposed inside the first heat-conducting member 1212, the first temperature sensor 1211 disposed in the first cavity 12121. With the solution of this embodiment, the first thermal conductive member 1212 wraps the first temperature sensor 1211 in the first cavity 12121, so that the first temperature sensor 1211 can be in full contact with the first support 1213, thereby improving the heat conduction and dissipation efficiency.

The first support 1213 contacts the inner wall of the sound guiding tube 14 to fix the positions of the first support 1213 and the sound guiding tube 14, and the first temperature sensor 121 and the second temperature sensor 122 are fixed by the first spacer 15, so that the body temperature sensor 12 and the sound guiding tube 14 are fixed relative to each other. The first support 1213 serves, on the one hand, for heat conduction and dissipation and, on the other hand, for fixing. The embodiment of the present application does not limit the structure and method for fixing the first support 1213 and the sound guide tube 14, for example, the first support 1213 abuts against the inner wall of the sound guide tube 14 or the first support 1213 is fixed to the sound guide tube 14 by gluing. The material of the first support 1213 is not particularly limited in the embodiments of the present application. Illustratively, the first support 1213 is made of plastic or metal.

The first support 1213 has a second cavity 12131 formed therein, and the first thermal-conductive member 1212 is disposed in the second cavity 12131.

The second body temperature sensor 121 includes: the second temperature sensor 1221, the second heat-conducting member 1222, the second support member 1223, the third cavity 12221 disposed inside the second heat-conducting member 1222, and the second temperature sensor 1221 disposed in the third cavity 12121. By adopting the scheme of this embodiment, the second temperature sensor 1221 is wrapped in the third cavity 12121 by the second heat conducting member 1212, so that the second temperature sensor 1221 and the second supporting member 1223 can be in full contact, and the heat conducting and dissipating efficiency is improved.

The second support 1223 forms a fourth cavity 12231 therein, and the second thermal conductor 1222 is disposed in the fourth cavity 12231.

In an alternative embodiment, a first spacer 15 is disposed between the first temperature sensor 121 and the second temperature sensor 122, and the first temperature sensor 121 and the second temperature sensor 122 are fixedly connected by the first spacer 15, so that the first temperature sensor 121 and the second temperature sensor 122 are relatively fixed.

The first support 1213 contacts the inner wall of the sound guiding tube 14, so that the positions of the first support 1213 and the sound guiding tube 14 are fixed, the positions of the first temperature sensor 121 and the second temperature sensor 122 are fixed, and the body temperature sensor 12 is suspended inside the sound guiding tube without the second spacer 17 on the surface of the body temperature sensor 12.

The principle of detecting body temperature by an earphone is illustrated in fig. 6 as an example. As shown in fig. 6, the heat transfer sequence in the ear 200 is: eardrum 202, ear canal 201, first support 1213, first heat conduction member 1212, first temperature sensor 1211, first spacer 15, second support 1223, second heat conduction member 1222, and second temperature sensor 1221. The heat is transferred along the path from strong to weak, and thus, a temperature difference is generated between the first temperature sensor 1211 and the second temperature sensor 1221.

Fig. 7 is another schematic structural diagram of a body temperature detecting earphone according to an embodiment of the present application. As shown, the earphone 10 further includes an adhesive member 18, the circuit board 19 is fixed on the inner wall of the sound guiding tube 14 through the adhesive member 18, the at least two temperature sensors are a first temperature sensor 121 and a second temperature sensor 122, respectively, the first temperature sensor 121 and the second temperature sensor 122 are disposed on the circuit board 19, and the first temperature sensor 121 is located on a side close to the eardrum 202 relative to the second temperature sensor 122.

The first temperature sensor 121 is located on a side of the eardrum 202 opposite the second temperature sensor 122. When the user wears the headset 10, the heat transfer direction inside the ear 200 is: from the eardrum 202 along the ear canal 201 past the first temperature sensor 121 relatively close to the eardrum 202 and past the second temperature sensor 122 relatively far from the eardrum 202. The first temperature sensor 121 and the second temperature sensor 122 receive the difference of the heat of the ear 200 to generate a temperature difference, and the temperature to be detected can be calculated by combining with a corresponding algorithm.

In another implementation of the present application, the first temperature sensor 121 and the second temperature sensor 122 are disposed on the circuit board 19 at an interval. By adopting the solution of this embodiment, there is an air gap between the first temperature sensor 121 and the second temperature sensor 122, the thermal conductivity of the air is relatively low, the first temperature sensor 121 and the second temperature sensor 122 are configured at intervals, so that the temperature difference between the first temperature sensor 121 and the second temperature sensor 122 is increased, and in combination with a corresponding algorithm, the error of temperature detection can be reduced.

In an alternative embodiment, the adhesive member 18 is an adhesive, on one hand, the adhesive member 18 can fix the circuit board 19 and the sound guide tube 14 relatively, and on the other hand, the adhesive member 18 can play a role in heat insulation, so as to reduce the influence of the external environment on the body temperature sensor 12, and further enable the temperature detection result to be more accurate. In the embodiments of the present application, the material of the bonding glue is not limited, and for example, the bonding glue is preferably a foam material.

In an alternative embodiment, the Circuit board 19 is a Flexible Printed Circuit (FPC) that is relatively thin and well positioned.

Fig. 8 is a schematic diagram of an electrical connection between a body temperature sensor and a processor according to an embodiment of the present application. As shown in the figure, the first temperature sensor 1211 and the second temperature sensor 1221 are connected by a lead (not shown in the figure) and are further connected to the chip 21 by the sensor lead 20, the first temperature sensor 1211 and the second temperature sensor 1221 convert the temperature signal into an electrical signal, and the chip 21 is configured to receive the electrical signal and calculate the body temperature to be measured according to the electrical signal.

FIG. 9 is a schematic view of another electrical connection between the body temperature sensor and the processor provided by the embodiment of the present application. As shown in the figure, the first temperature sensor 1211 and the second temperature sensor 1221 are packaged in a chip mount manner and soldered on a Flexible Printed Circuit (FPC). The circuit board 19 is directly connected to the chip 21. The body temperature sensor 12 converts the temperature signal into an electrical signal, and the chip 21 is used for receiving the electrical signal and calculating the body temperature to be measured according to the electrical signal.

Referring to fig. 5B, as shown in the figure, the sound guiding tube 14 of the earphone 10 is sleeved with a sealing member 23, and the structure of the sealing member 23 is not limited in the embodiment of the present application, and the sealing member 23 is, for example, an earcap or an earbag.

Adopt the scheme of this embodiment, sealing member 23 cooperatees with duct 201 for improve earphone 10's sealed effect, promote the leakproofness in duct 201, reduce the convection current influence in external environment and the duct 201, and then reduce ambient temperature to body temperature sensor 12's influence, make the heat that eardrum 202 and duct 201 produced to body temperature sensor 12's direction transmission, promote the accuracy that the temperature detected.

In an optional implementation manner, any one of the at least two temperature sensors is a contact type body temperature sensor, and thus, by adopting the scheme of this embodiment, a non-contact type temperature measurement scheme is implemented by using a contact type multiple body temperature sensor, on one hand, the problem of a test error caused by unstable contact between a contact type single body temperature sensor and a measured object is solved, and on the other hand, the problem that the infrared non-contact type body temperature sensor is too large and is not suitable for being equipped with the earphone 10 is solved.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

It should be noted that, without conflict, the embodiments and/or technical features in the embodiments described in the present application may be arbitrarily combined with each other, and the technical solutions obtained after the combination also should fall within the scope of the present application.

Claims

1. An earphone, comprising:

an earphone housing;

the earphone shell is enclosed into an earphone cavity, the earphone cavity extends outwards to form a sound guide pipe communicated with the outside, and the sound guide pipe is positioned on one side, close to an eardrum of an earphone wearer, of the earphone cavity; and

the physiological parameter detection module is contained in the sound guide tube and comprises a circuit board, and a body temperature sensor and a heart rate sensor which are arranged on the circuit board;

the body temperature sensor is used for acquiring a body temperature sensing signal in an ear canal of the earphone wearer and transmitting the body temperature sensing signal through the circuit board so as to detect body temperature data of the earphone wearer; the heart rate sensor is used for acquiring a heart rate sensing signal of the earphone wearer and transmitting the heart rate sensing signal through the circuit board so as to detect heart rate data of the earphone wearer.

2. The headset of claim 1, further comprising an earcap;

the earphone shell further comprises a sound guide tube wall which is sleeved in the ear cap and used for defining the sound guide tube;

the sound guide tube wall is provided with a light-transmitting part, and the heart rate sensor acquires the heart rate sensing signal through the light-transmitting part.

3. The headset of claim 2, wherein the heart rate sensor comprises: an optical emitter and an optical detector;

wherein the optical emitter is configured to emit a detection light signal and to pass the detection light signal through the light-transmissive portion; the light detector is used for receiving a reflected light signal obtained after the detected light signal is reflected by the earphone wearer and converting the reflected light signal into the heart rate sensing signal.

4. The headset of claim 1, wherein the body temperature sensor comprises: a first temperature sensor and a second temperature sensor; first temperature sensor with second temperature sensor follows in proper order the extending direction of leading note pipe sets up, first temperature sensor for the second temperature sensor is closer to earphone wearer's eardrum.

5. The earphone according to claim 2, wherein the circuit board is formed as a rigid-flex board, and the heart rate sensor and the body temperature sensor are disposed on a rigid portion of the rigid-flex board;

the heart rate sensor is arranged between one side of the circuit board and the sound guide pipe wall, and the body temperature sensor is arranged on the other side of the circuit board.

6. The headset of claim 2, wherein the circuit board is formed as a flexible circuit board that is bent to form a first circuit board and a second circuit board; the second side of the first circuit board is opposite to the first side of the second circuit board;

the heart rate sensor is arranged between the first side of the first circuit board and the sound guide tube wall, and the body temperature sensor is arranged on the second circuit board.

7. The headset of claim 6, wherein the body temperature sensor is disposed between the second side of the second circuit board and the sound guide tube wall, and wherein the second side of the first circuit board is attached to the first side of the second circuit board.

8. The headset of claim 7, wherein the second side of the first circuit board has a first reinforcing patch attached thereto, wherein the first side of the second circuit board has a second reinforcing patch attached thereto, and wherein the first reinforcing patch is attached to the second reinforcing patch.

9. The headset of claim 6, wherein the body temperature sensor is disposed between the second side of the second circuit board and the sound guide tube wall; a first reinforcing patch is attached to the second side of the first circuit board, a second reinforcing patch is attached to the first side of the second circuit board, and a gap is formed between the first reinforcing patch and the second reinforcing patch;

the first circuit board is arranged on one radial side of the sound guide pipe wall, and the second circuit board is arranged on the other radial side of the sound guide pipe wall.

10. The earphone according to any one of claims 6 to 9, wherein the flexible circuit board is bent to form the first circuit board and the second circuit board via a bent portion, the bent portion being spaced between the first circuit board and the second circuit board.