CN111970598A

CN111970598A - Earphone convenient to wear

Info

Publication number: CN111970598A
Application number: CN202010832991.5A
Authority: CN
Inventors: 张克武; 赖举; 刘�东
Original assignee: Southwest University of Science and Technology
Current assignee: Southwest University of Science and Technology
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2020-11-20
Anticipated expiration: 2040-08-18
Also published as: CN111970598B

Abstract

The invention discloses a headset convenient to wear, which comprises a shell (2), wherein one end of the shell (2) is provided with a supporting part (6) protruding outwards from the shell (2), the supporting part (6) is cylindrical, and earplugs (7) are arranged on the outer side of the circumference of the supporting part (6); shell (2) has first laminating portion (11) and second laminating portion (17), first laminating portion (11) and conch chamber (24) laminating of auricle (26) of wearer, second laminating portion (17) and the antitragus helix (25) laminating of auricle (26) of wearer, first laminating portion, second laminating portion and earplug three act on simultaneously and make to constitute the triangular supports between the three, form stable fixed knot and construct for the earphone is inseparable with the laminating of user's auricle, and is fixed firm, is difficult for droing.

Description

Earphone convenient to wear

Technical Field

The invention relates to an earphone, in particular to an in-ear earphone convenient to wear.

Background

There are various earphones on the market today, in which the ear plug part of an in-ear earphone consists of an elastically compressible material element, which needs to be compressed before insertion into the external auditory canal and which, after insertion into the external auditory canal, will form a seal by expanding against the external auditory canal; the pre-formed type of in-ear earphone, which does not require any treatment before use, is supported by a soft material that can be properly inserted into the external auditory canal.

The main drawbacks of the conventional earphone are: they are uncomfortable to wear and do not adapt to the ear configuration of each individual, and it is difficult to stably maintain the correct position in the outer ear, and therefore, in order to ensure that the earphone can be worn correctly and stably, it is often necessary to provide a variety of models, even to customize the product by taking an impression of the insertion site.

In addition, for wireless earphones used in industrial fields or wireless earphones worn in special occasions, the current civil and common Bluetooth technology is not suitable, the industrial field generally adopts a UHF 450MHz-900MHz frequency band to carry out wireless communication at present, but the actual use process is often interfered by environmental factors, and particularly in the occasions with complex environments, such as large-scale industrial fields and the like.

Disclosure of Invention

The invention provides an earphone convenient to wear, which aims to solve the problems in the prior art.

A headset convenient to wear, comprising a housing having at one end a support portion projecting outwardly from the housing, the support portion being cylindrical with earplugs on the outside of the circumference of the support portion; the shell has first laminating portion and second laminating portion, the laminating of first laminating portion and the concha chamber of wearer's auricle, the laminating of second laminating portion and the antihelix of wearer's auricle.

The shell also comprises a front side wall, wherein the first attaching part protrudes towards the supporting part, and the cross section of the first attaching part is arc-shaped; the second attaching part protrudes towards the outer side of the shell, and the cross section of the second attaching part is circular arc-shaped; the front sidewall surface is planar.

The earplug comprises a wearing part matched with the external auditory canal and an inner bushing, wherein the supporting part comprises a circumferential protruding part, and the circumferential protruding part is matched with the inner bushing so as to fix the earplug on the supporting part.

The shell extends along the axial line of the length direction of the shell, and the intersection angle of the axial line of the shell and the axial line of the supporting part is larger than DEG

Including microphone, speaker, processing chip and regulating switch in the shell, microphone, speaker to and regulating switch all pass through wire and processing chip electric connection.

Preceding lateral wall middle part still includes the battery compartment, and the battery compartment can be opened manually or close, places the battery in the battery compartment and supplies power to the earphone, the preferred button cell of battery.

The adjusting switch comprises a knob protruding out of the front side wall, the knob is located on the upper portion of the battery bin, the microphone is located on the lower portion of the battery bin, and the volume of the earphone can be adjusted through manually rotating the knob.

The invention has the advantages that:

1. laminating through the conch chamber of first laminating portion and the auricle of the person of wearing, the laminating of the anthelix of second laminating portion and the auricle of the person of wearing, first laminating portion, second laminating portion and earplug three act on simultaneously make to constitute the triangular supports between the three, form stable fixed knot and construct, make earphone and the laminating of user's auricle inseparable, it is fixed firm, be difficult for droing, and solved and simply rely on the earplug fixed and cause very big pressure to the external duct, wear for a long time and lead to the ear pain, the not good problem of result of use.

2. The first attaching portion protrudes towards the supporting portion, and the supporting portion and the outer shell are of an obtuse angle structure, so that an obtuse angle is formed between the first attaching portion and the earplug, and the first attaching portion can be conveniently inserted into an external auditory canal of a user and can be conveniently attached to a concha cavity.

3. The earplug also comprises an inner lining 18 which is convenient to combine with the supporting part, and the earplug is not easy to fall off and is firmly fixed.

4. A band-pass filter is formed by a resistor R4, a capacitor C2, a capacitor C3, a resistor R2 and an operational amplifier U1A, noise with frequency lower than 450MHz and higher than 900MHz is filtered, so that the noise with frequency lower than 450MHz and higher than 900MHz is prevented from influencing signals with frequency between 450MHz and 900MHz, a frequency selection circuit formed by a triode Q1, a resistor R8, a capacitor C5 and a capacitor C4 is used for feeding back the signals to the band-pass filter, the frequency of sound signals is stabilized between 450MHz and 900MHz, the signals are isolated from the noise by a photoelectric coupler U2, and the influence of the noise on the signals is prevented.

Drawings

FIG. 1 is a three-dimensional exploded view of a headset;

fig. 2 to 5 show three-dimensional schematic views of a plurality of different angles of the headset.

Fig. 6 and 7 are schematic views of the position of the headset in the pinna.

Fig. 8 is a schematic diagram of a noise reduction circuit for a headphone.

Detailed Description

The features and advantages of the present invention will become more apparent when the following description is taken in conjunction with the accompanying drawings.

A headset 1 convenient to wear, comprising a housing 2, the housing 2 having at one end a support 6 protruding outwardly from the housing 2, the support 6 being cylindrical, the support 6 having earplugs 7 circumferentially outside; the housing 2 has a first fitting portion 11 and a second fitting portion 17, the first fitting portion 11 is fitted with a concha cavity 24 of a pinna 26 of the wearer, and the second fitting portion 17 is fitted with an antihelix 25 of the pinna 26 of the wearer.

The housing 2 extends along an axis L, the axis L of the housing 2 intersecting the axis P of the support 6 at an angle greater than 90 °.

The shell 2 further comprises a front side wall 12, wherein the first attaching part 11 protrudes towards the supporting part 6, and the cross section of the first attaching part is arc-shaped; the second attaching portion 17 protrudes toward the outside of the case 2 and has a circular arc-shaped cross section; the front side wall 12 surface is planar.

The shape of first laminating portion 11 is convenient for laminate with conch cavity 24, the shape of second laminating portion 17 is convenient for laminate with antihelix 25, and first laminating portion 11 and second laminating portion 17 and earplug 7 act together and constitute triangular supports and make earphone 1 and user's auricle laminating inseparable, and is fixed firm, is difficult for droing, and can not rely on the earplug to fix and cause very big pressure to external auditory canal 23 because of simply, wears for a long time and leads to the ear painful, and the result of use is not good.

The earplug 7 comprises a wearing part matched with the external auditory canal 23 and an inner lining 18, the wearing part is made of shape memory material so as to adapt to different shapes of the external auditory canal 23 and to restore the original shape after being taken out; the inner lining is made of hard material, preferably hard plastic.

The shape memory material of the wearing portion is preferably a memory foam material such as polyurethane, viscoelastic polyurethane, or low-elasticity polyurethane foam, latex, polyester, or the like, and may be silicone rubber, TPE, or the like.

Thus, the earplug 7 is replaceable and a variety of different sizes and materials of the earplug 7 may be used to accommodate various configurations of the external ear canal 23.

The support portion 6 comprises a circumferential projection 14, the circumferential projection 14 cooperating with an inner sleeve 18 for securing the earplug 7 to the support portion 6.

The casing 2 includes a microphone 3, a speaker 4, a processing chip 5 and an adjusting switch 20, and the microphone 3, the speaker 4 and the adjusting switch 20 are all electrically connected to the processing chip 5 through a wire 22.

The supporting part 6 is a hollow structure, and the sound emitted by the loudspeaker 4 is transmitted into the external auditory canal 23 of the user through the supporting part 6; the microphone 3 is located at the bottom of the front side wall 12 and is used for picking up the sound emitted by the user.

The middle part of the front side wall 12 further comprises a battery bin 8, the battery bin 8 can be opened or closed manually, a battery 10 is placed in the battery bin 8 to supply power to the earphone 1, and the battery 10 is preferably a button battery.

The adjusting switch 20 comprises a knob 21 protruding out of the front side wall 12, the knob 21 is located at the upper part of the battery compartment, the microphone 3 is located at the lower part of the battery compartment 8, and the volume of the earphone 1 can be adjusted by manually rotating the knob 21.

The earphone 1 further comprises a wireless communication module, the wireless communication module is also arranged inside the shell 2 and electrically connected with the processing chip 5, and the wireless communication module is used for wirelessly communicating with other users.

The processing chip 5 is internally divided into a receiving module and a sending module, sound emitted by a user is picked up by the microphone 3 and then transmitted to the sending module of the processing chip 5, and the sending module transmits a signal to the wireless communication module to be sent out; the signal received by the wireless communication module is processed by the noise reduction circuit and then sent to the receiving module of the processing chip 5, and the signal is processed by the receiving module and then sent to the loudspeaker.

The wireless communication module receives transmitted signals, in order to avoid the electromagnetic interference in the signals from damaging circuit devices, a bipolar TVS diode D1 is used for inhibiting the electromagnetic interference, a resistor R3 and a capacitor C1 are used for forming a resistance-capacitance absorption circuit to absorb and discharge the electromagnetic interference to the ground, because the earphone 1 is a wireless earphone, the signals received by the wireless earphone are between 450MHz and 900MHz, a band-pass filter is formed by the resistor R4, the capacitor C2, the capacitor C3, the resistor R2 and an operational amplifier U1A, noise with frequencies lower than 450MHz and higher than 900MHz is filtered, so that the noise with frequencies lower than 450MHz and higher than 900MHz is prevented from influencing the signals between 450MHz and 900MHz, the resistor R7 is a feedback resistor of the operational amplifier U1A and is used for controlling the amplification of the operational amplifier U1A, the signals are output by an output end of the operational amplifier U1A and then transmitted to a triode Q1, in order to avoid the roll-off phenomenon of the filter, a frequency selection circuit consisting of a triode Q1, a resistor R8, a capacitor C5 and a capacitor C4 is used for feeding back signals to a band-pass filter consisting of a resistor R4, a capacitor C2, a capacitor C3, a resistor R2 and an operational amplifier U1A, so that the frequency of the signals is stabilized between 450MHz and 900MHz, the operational amplifier U1A outputs the signals with stable frequency and then transmits the signals to the triode Q2 through a diode D2, at the moment, the photoelectric coupler U2 carries out a process of converting the signals into optical signals and then converting the optical signals into electric signals, no noise exists in the signals, the influence of the noise on the signals is reduced to the maximum extent, a power supply VCC provided by a battery bin 8 is transmitted to the photoelectric coupler U2 through a resistor R6 to supply power to the photoelectric coupler U2, and the signals are transmitted to a loudspeaker 4 through a resistor R10 to;

one end of a bipolar TVS diode D1 is connected to one end of a resistor R3, one end of a resistor R4, an emitter of a triode Q1 and a wireless communication module, the other end of a bipolar TVS diode D1 is connected to one end of a capacitor C1, one end of a capacitor C2, one end of a resistor R1, one end of a resistor R2 and one end of a resistor R9 respectively, and are grounded, the other end of a resistor R3 is connected to the other end of a capacitor C1, the other end of a resistor R4 is connected to the other end of a capacitor C2, one end of a resistor R5 and one end of a capacitor C3 respectively, the other end of a capacitor C3 is connected to the other end of a resistor R3 and the same-phase end of an operational amplifier U1 3, the inverting end of the operational amplifier U1 3 is connected to the other end of a resistor R3 and one end of a resistor R3 respectively, the output end of the operational amplifier U1 3 is connected to the other end of a base of a triode Q3, the diode D36, One end of a resistor R8 and one end of a capacitor C5, a collector of a triode Q1 is respectively connected with the other end of the resistor R8 and the other end of the capacitor C5, a cathode of a diode D2 is connected with a base of a triode Q2, a collector of the triode Q2 is connected with a cathode of a light emitting diode of a photocoupler U2, one end of a resistor R6 is connected with a positive power supply VCC, the other end of the resistor R6 is connected with an anode of the light emitting diode of the photocoupler U2, an emitter of a phototriode of the photocoupler U2 is grounded, a collector of a phototriode of the photocoupler U2 is connected with one end of the resistor R10, and the other end of the resistor R10 is connected with the loudspeaker 4.

Claims

1. A headset which is easy to wear, characterized by comprising a housing (2), one end of the housing (2) is provided with a supporting part (6) which protrudes outwards from the housing (2), the supporting part (6) is cylindrical, and the periphery of the supporting part (6) is provided with earplugs (7); the shell (2) has a first attaching portion (11) and a second attaching portion (17), the first attaching portion (11) is attached to a concha cavity (24) of a pinna (26) of a wearer, and the second attaching portion (17) is attached to an antihelix (25) of the pinna (26) of the wearer.

2. The headset of claim 1, wherein the casing (2) further comprises a front wall (12), wherein the first fitting portion (11) protrudes in the direction of the support portion (6) and has a circular arc-shaped cross section; the second attaching part (17) protrudes towards the outer side of the shell (2) and has a circular arc-shaped cross section; the surface of the front side wall (12) is a plane.

3. The ear cup for easy donning according to claim 1, characterised in that the ear plug (7) comprises a wearing portion cooperating with the external auditory canal (23) and an inner sleeve (18), the support portion (6) comprising a circumferential protrusion (14), the circumferential protrusion (14) cooperating with the inner sleeve (18) for securing the ear plug (7) on the support portion (6).

4. The headset of claim 1, wherein the housing (2) extends along its own longitudinal axis, the axis of the housing (2) intersecting the axis of the support (6) at an angle greater than 90 °.

5. The earphone convenient to wear according to claim 1, wherein the casing (2) comprises a microphone (3), a speaker (4), a processing chip (5) and an adjusting switch (20), and the microphone (3), the speaker (4) and the adjusting switch (20) are electrically connected with the processing chip (5) through wires (22).

6. The earphone convenient to wear according to claim 1, wherein the middle part of the front side wall (12) further comprises a battery compartment (8), the battery compartment (8) can be opened or closed manually, a battery (10) is placed in the battery compartment (8) to supply power to the earphone (1), and the battery (10) is a button battery.

7. The earphone convenient to wear according to claim 1, wherein the adjusting switch (20) comprises a knob (21) protruding out of the front side wall (12), the knob (21) is located at the upper part of the battery compartment, the microphone (3) is located at the lower part of the battery compartment (8), and the volume of the earphone (1) can be adjusted by manually rotating the knob (21).

8. The wearable headset of claim 3, wherein the wearable portion is made of a memory foam material.