CN210274477U

CN210274477U - Earphone with directional sound transmission function

Info

Publication number: CN210274477U
Application number: CN201921765015.1U
Authority: CN
Inventors: 张灿锋
Original assignee: Shenzhen Benjun Technology Co ltd
Current assignee: Shenzhen Benjun Technology Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-04-07
Anticipated expiration: 2029-10-18
Also published as: WO2021073058A1

Abstract

An earphone with directional sound transmission function can be worn on the ear of a user through a suspension arm without pressing the auricle of the wearer frontally. One part of a side shell of the sound production device is arranged towards the auricle of a wearer, a directional sound guide port is arranged on the part of the side shell, which faces the auricle of the wearer, and is communicated with the front sound cavity, sound emitted by the loudspeaker is transmitted to the auricle through the directional sound guide port, and the sound is transmitted to the auditory canal after being reflected by the auricle. This earphone is worn through hanging at the earphone, need not to insert the duct or extrude the auricle and realize wearing, moreover, sets up a plurality of densely covered play sound holes with other earphones and compares, and this earphone is concentrated the sound that loudspeaker sent and is derived from directional leading tone mouth, has reduced the diffusion and the loss of sound, has improved sound quality, still can prevent simultaneously that sound from playing outward (lou), improves privacy.

Description

Earphone with directional sound transmission function

Technical Field

The present application relates to a headset.

Background

Traditional earphone is the pleasant formula or ear muff formula mostly, and the pleasant formula earphone need insert the person of wearing the ear canal in, will cause the ear discomfort after wearing for a long time, causes the damage to the ear even when serious. While the earmuff type earphone does not need to be inserted into the ear canal of a wearer, the whole ear canal needs to be covered, so that the earphone needs to press the auricle to ensure that the emitted sound can be transmitted into the ear canal as much as possible. The use of such earmuff type earphones for a long time also causes disadvantages, such as discomfort to the pinna.

In order to overcome the defects of the traditional earphone, a bone conduction earphone is developed, which converts sound into mechanical vibration with different frequencies, and transmits sound waves through skull bones, bone labyrinth, inner ear lymph fluid transmission, spiral organ, auditory nerve and auditory center of a human. Compared with a classical sound conduction mode of generating sound waves through a vibrating diaphragm, the bone conduction mode omits a plurality of sound wave transmission steps and can realize clear sound restoration in a noisy environment. However, the bone conduction earphone causes the skull of a human body to vibrate together and has a sense of pressure on the head, and when the earphone is worn for a long time, the vibration causes discomfort to a wearer and easily causes pressure on the head.

Disclosure of Invention

The application provides an earphone with directional sound conduction function, improves the travelling comfort when the earphone is worn for a long time.

In one embodiment of the present application, there is provided an earphone with directional sound transmission function, including:

a suspension arm having a suspension portion adapted to engage an outer wall of a wearer's ear, such that the suspension arm is adapted to be suspended from the wearer's ear;

the shell is provided with an inner shell arranged towards the auditory canal of a wearer, an outer shell arranged opposite to the inner shell and a side shell connected between the inner shell and the outer shell, the inner shell, the outer shell and the side shell enclose an accommodating cavity, the horn is installed in the accommodating cavity, the front end of the horn is provided with a front sound cavity, part of the side shell is arranged towards the auricle of the wearer, the part of the side shell facing the auricle of the wearer is provided with a directional sound guide port, the directional sound guide port is communicated with the front sound cavity, and sound emitted by the horn is emitted out through the directional sound guide port;

and the control unit is connected with the loudspeaker and used for controlling the loudspeaker to sound.

As a further improvement of the earphone, the front end of the loudspeaker is opposite to the directional sound leading port.

As a further improvement of the earphone, the horn is obliquely arranged in the accommodating cavity, and an included angle formed by the center line of the horn and the center line of the directional sound guide port is an acute angle.

Conduct the further improvement of earphone, sound generating mechanism still includes the loudspeaker seat, the loudspeaker seat has and roughly is cupped structure, the loudspeaker seat is installed the holding intracavity, the diapire outside orientation of loudspeaker seat the inner wall setting of interior casing, loudspeaker install in the loudspeaker seat, just the front end orientation of loudspeaker the diapire inboard setting of loudspeaker seat, loudspeaker and loudspeaker seat enclose into preceding sound chamber, the lateral wall of loudspeaker seat is opened and is dodged the mouth, dodge the mouth with the directional sound mouth of leading aligns, so that the sound that loudspeaker sent is followed it spreads to dodge the mouth.

As the further improvement of the earphone, the inner wall of the horn seat is provided with a circle of inclined bosses, and the front end of the horn is placed on the bosses and sealed and fixed, so that the horn is arranged in an inclined state in the accommodating cavity.

As a further improvement of the earphone, the inner wall of the shell is provided with a plurality of convex ribs arranged along the insertion direction of the horn base, and the outer wall of the horn base is provided with a plurality of grooves matched with the convex ribs.

As a further improvement of the earphone, the earphone further comprises a microphone, wherein the microphone is arranged in the shell and used for receiving a sound signal and transmitting the sound signal to the control unit; the directional sound leading port is a strip-shaped opening; the outer wall of the inner shell is spherical.

As a further improvement of the earphone, a rear sound cavity is arranged at the rear end of the loudspeaker, and an air inlet hole is formed in the outer shell and communicated with the rear sound cavity.

As a further improvement of the earphone, the earphone further comprises a first waterproof sound-transmitting piece and a second waterproof sound-transmitting piece; the first waterproof sound-transmitting piece is arranged at the directional sound-guiding opening; the second waterproof sound-transmitting piece is arranged at the air inlet.

As the earphone is further improved, the earphone further comprises a connecting body, the number of the suspension arms and the number of the sound generating devices are two, the two suspension arms are respectively arranged at two ends of the connecting body, each suspension arm is correspondingly connected with one sound generating device, and the control unit is arranged on the connecting body, the suspension arms or the sound generating devices.

According to the earphone of the above embodiment, it can be worn on the ear of the user by the suspension arm without pressing the auricle of the wearer from the front. The shell is provided with an inner shell, an outer shell arranged opposite to the inner shell and a side shell connected between the inner shell and the outer shell, and the horn is arranged in a containing cavity of the shell. The inner shell is positioned towards the ear canal of the wearer without being inserted into the ear canal and without compressing the pinna. A part of the side shell is arranged towards the auricle of the wearer, and a directional sound guide port is arranged on the part of the side shell facing the auricle of the wearer and communicated with the front sound cavity, and the sound emitted by the loudspeaker is emitted out through the directional sound guide port. The sound emitted by the horn can be transmitted to the auricle through the directional sound-guiding opening, and the sound is transmitted to the auditory canal after being reflected by the auricle. This earphone is worn through hanging at the earphone, need not to insert the duct or extrude the auricle and realize wearing, moreover, sets up a plurality of densely covered play sound holes with other earphones and compares, and this earphone is concentrated the sound that loudspeaker sent and is derived from directional leading sound mouth, has reduced the diffusion and the loss of sound, has improved sound quality, still can prevent simultaneously that sound from putting outward, improves privacy.

Drawings

Fig. 1 and 2 are structural views showing an external appearance of an earphone having a directional sound transmission function according to an embodiment of the present application;

fig. 3 is an exploded view of the sound generator of the headset of fig. 1 and 2;

FIG. 4 is a schematic view of a sound generating device and a portion of the periphery thereof according to an embodiment of the present application;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4 (only a portion of the sound generator);

FIG. 6 is a schematic view of an embodiment of the present disclosure showing a speaker mounted on a speaker base;

fig. 7 is a schematic view of a horn mounted in a housing according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The embodiment provides an earphone, in particular to an earphone with a directional sound transmission function.

Referring to fig. 1 to 5, the earphone includes a suspension arm 100, a sound generating device 200, and a control unit (not shown).

The suspension arm 100 has a suspension portion 101 that can fit the outer wall of the wearer's ear, allowing the suspension arm 100 to be suspended from the wearer's ear. Referring to fig. 1 and 2, the hanging portion 101 has a curved structure with a curved angle matching with the curved angle of the outside of the ear of the wearer, so that the hanging portion 101 can be hung on the ear of the wearer in a fitting manner. The sound generating device 200 is connected with the suspension arm 100, so that the sound generating device 200 can not be in direct contact with a wearer or excessively press the auricle of the wearer, the discomfort caused to the wearer is reduced, and the earphone is convenient to wear for a long time.

The sound generating device 200 includes a housing 210 and a speaker 220 (or called a speaker). In one embodiment, the horn 220 is a high quality horn with a diameter of 16 mm. The outer shell 210 has an inner shell 211 disposed toward the ear canal of the wearer, an outer shell 213 disposed opposite the inner shell 211, and a side shell 212 connected between the inner shell 211 and the outer shell 213. The inner housing 211, the outer housing 213 and the side housing 212 enclose a receiving cavity. The loudspeaker 220 is installed in the accommodating cavity, and a front sound cavity 201 is arranged at the front end of the loudspeaker 220. The front end of the speaker 220 is the end where the speaker emits sound, and is usually the end where a diaphragm or a cone is located. The rear end of the horn 220 is the end opposite to the front end. A portion of the side housing 212 is disposed toward the pinna of the wearer and a portion of the side housing 212 facing the pinna of the wearer is disposed with the directional sound leading port 202. The directional sound leading port 202 is communicated with the front sound cavity 201, and the sound emitted by the loudspeaker 220 is emitted out through the directional sound leading port 202. The communication between the front sound cavity 201 and the directional sound leading port 202 may be direct communication, or an intermediate transmission channel, such as a conduit, may be added to transmit the sound in the front sound cavity 201 to the directional sound leading port 202 through the intermediate transmission channel.

The inner housing 211, the outer housing 213, and the side housing 212 are named only from the perspective of orientation, and these housings may be the same component or different components. For example, referring to fig. 3, in this embodiment, the outer housing 213 is actually integrated with the housing of the suspension arm 100, and the inner housing 211 and the side housing 212 are integrated into a single structure, which are combined to form the outer housing 210 of the sound generating device 200.

The control unit is connected to the speaker 220 for controlling the speaker 220 to emit sound. The control unit can receive external signals and convert the signals into corresponding driving signals to drive the speaker 220 to sound. This control process can already be implemented by means of the prior art and is not to be considered here.

In some embodiments, the control unit may include an electrical signal receiving module that receives signals in a wired and/or wireless manner. In some embodiments, the headset may also have its own memory unit, and the control unit may play music stored in these memory units.

In this embodiment, the inner housing 211 is positioned toward the ear canal of the wearer, but need not be inserted into the ear canal, nor does it need to compress the pinna. Sound emitted by the speaker 220 may be transmitted through the directional sound conduction port 202 to the pinna where it is reflected and transmitted into the ear canal. This earphone is worn through hanging arm 100, need not to insert the auditory canal or extrude auricle and realize wearing, compares with traditional in-ear formula and ear muff formula earphone, and this earphone can not cause auditory canal and auricle discomfort. Compared with a bone conduction earphone, the earphone does not need skull resonance and is more comfortable to use. Compared with other earphones provided with a plurality of densely distributed sound outlet holes, the earphone leads out the sound emitted by the loudspeaker 220 from the directional sound guide port 202 in a concentrated manner, reduces the diffusion and loss of the sound and improves the sound quality. Meanwhile, since the inner shell 211 faces the ear canal, when the sound transmitted from the directional sound leading port 202 is reflected by the auricle, the sound reflected to the outside of the ear canal can be reflected into the ear canal through the inner shell 211, thereby improving the sound quality. The inner housing 211, the auricle and the side housing 212 may substantially enclose a cavity, and sound may be reflected and reverberated in the cavity, thereby further improving sound quality, and simultaneously preventing sound from being emitted outside, thereby improving privacy.

This earphone can not direct shutoff duct, and the person of wearing can also receive other sounds from the external world when using this earphone, improves the person of wearing's alertness, especially when walking on the road, riding, is safer.

Further, in one embodiment, the front end of the speaker 220 is aligned with the directional sound leading port 202, so that most of the sound emitted from the speaker 220 is transmitted to the directional sound leading port 202. For example, in some embodiments, the center line of the horn 220 is coincident with the center line of the directional leading tone port 202.

Further, referring to fig. 5, in another embodiment, the horn 220 is disposed in the accommodating cavity in an inclined manner, and an included angle formed between a center line of the horn 220 and a center line of the directional sound guiding opening 202 is an acute angle a. Thus, the sound emitted by the speaker 220 can be more easily transmitted to the directional sound leading port 202 under the reflection of the cavity wall of the front sound cavity 201, and meanwhile, the earphone can be ensured to have a thinner thickness.

In a preferred embodiment, the center line of the horn 220 forms an acute angle A of 75 with the center line of the directional leading mouthpiece 202.

The horn 220 may be mounted directly within the outer housing 213 or indirectly within the outer housing 213 via other mounting structures. Referring to fig. 3, 5 to 7, in an embodiment, the sound generating device 200 further includes a speaker base 230. The horn base 230 has a generally cup-shaped configuration. The speaker holder 230 is installed in the receiving cavity. The outer side of the bottom wall of the horn base 230 is disposed toward the inner wall of the inner housing 211. The horn 220 is installed in the horn base 230, and a front end of the horn 220 is disposed toward an inner side of a bottom wall of the horn base 230. The horn 220 and the horn base 230 enclose a front sound cavity 201. The side wall of the horn base 230 is formed with an escape opening 231, and the escape opening 231 is aligned with the directional sound guide opening 202 so that the sound emitted from the horn 220 is emitted from the escape opening 231.

Referring to fig. 3, 5 and 6, in an embodiment, the inner wall of the horn base 230 has a circle of inclined bosses 232, and the front end of the horn 220 is placed on the bosses 232 and fixed in a sealing manner, for example, by using a sealant, so that the horn 220 is disposed in an inclined state in the accommodating cavity. Of course, the bosses 232 may be disposed horizontally or vertically when the speaker 220 is not required to be tilted in some embodiments. The outer periphery of the speaker 220 is sealably engaged with the boss 232, so that the aforementioned front sound cavity 201 is formed inside the speaker holder 230.

In order to position the speaker holder 230 with the housing 210, referring to fig. 3 and 7, in one embodiment, the inner wall of the housing 210 has a plurality of ribs 214 arranged along the insertion direction of the speaker holder 230, and the outer wall of the speaker holder 230 has a plurality of grooves 233 engaged with the ribs 214.

Of course, the speaker holder 230 and the housing 210 may be fixed by other means, such as bonding, clipping, welding, etc.

Further, referring to fig. 2, in an embodiment, the directional sound leading port 202 is an elongated opening, such as a kidney-shaped hole. The elongated opening is disposed along the outer periphery of the side housing 212, and the characteristics of the side housing 212 that the outer periphery is longer and the thickness is smaller are fully utilized to provide a sufficient opening space for sound to come out.

Further, referring to fig. 5, in an embodiment, the outer wall of the inner housing 211 is spherical, and the inner housing 211 may contact with the wearer, so that the inner housing 211 is made spherical to prevent discomfort to the wearer, thereby improving the wearing comfort of the earphone.

Further, referring to fig. 1 and 5, in an embodiment, a rear sound cavity 203 is disposed at a rear end of the speaker 220, an air inlet 204 is disposed on the outer shell 213, and the air inlet 204 is communicated with the rear sound cavity 203.

For waterproofing, please refer to fig. 3 and 5, an embodiment further comprises a first waterproof sound-transmitting member 241 and a second waterproof sound-transmitting member 242. A first waterproof sound-transmitting member 241 is provided at the directional sound-leading mouth 202. A second waterproof sound-transmitting member 242 is provided at the air intake hole 204. The first and second waterproof sound-transmitting

members

241 and 242 may be waterproof sound-transmitting patches or waterproof sound-transmitting films.

Further, referring to fig. 3, in one embodiment, the microphone 250 is further included, and the microphone 250 is disposed in the housing 210 for receiving the sound signal and transmitting the sound signal to the control unit.

Referring to fig. 1 to 7, the earphone shown in this embodiment further includes a connecting body 300, two suspension arms 100 and two sound generators 200. Two suspension arms 100 are respectively arranged at two ends of the connecting body 300, and each suspension arm 100 is correspondingly connected with one sound-emitting device 200. The connector 300 has a bending angle adapted to the hindbrain region of a human body and can be worn from the hindbrain to the ear.

Of course, in some embodiments, the connector 300 can also be a head-mounted structure, and the wearer can wear the earphone on the top of the head.

In other embodiments, the connecting body 300 can be omitted, and the suspension arm 100 and the sound generating device 200 are a single integral structure, so that the earphone is smaller in size and easier to store. In addition, the suspension arm 100 and the sound emitting device 200 may be only one for monaural use.

The control unit may comprise a circuit board provided with a control circuit, which circuit board may be arranged on the connecting body 300 (when the connecting body 300 is present) or on the suspension arm 100 or the sound emitting device 200, e.g. directly in the suspension arm 100 or the sound emitting device 200 when the connecting body 300 is omitted. The control unit is connected with a plurality of keys and interfaces so as to input commands and perform data interaction. Referring to FIG. 2, the keys and interfaces 410 can be disposed on the connecting body 300 or the suspension arm 100. In addition, with continued reference to fig. 1, 3 and 5, a button 420 may also be disposed on the outer casing 213 of the sound generating device 200 for performing corresponding operations, such as start/stop function buttons, and a button circuit board 430 is disposed in the corresponding casing of the sound generating device 200 and connected to the control unit.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims

1. An earphone with directional sound transmission function, comprising:

2. The headset of claim 1, wherein the horn front is directly opposite the directional sound port.

3. The earphone according to claim 1, wherein the speaker is disposed in the receiving cavity in an inclined manner, and an included angle formed between a center line of the speaker and a center line of the directional sound leading port is an acute angle.

4. The earphone according to claim 1, wherein the sound generating device further comprises a speaker base having a substantially cup-shaped structure, the speaker base is installed in the accommodating cavity, an outer side of a bottom wall of the speaker base is disposed toward an inner wall of the inner housing, the speaker is installed in the speaker base, a front end of the speaker is disposed toward an inner side of the bottom wall of the speaker base, the speaker and the speaker base enclose the front sound cavity, a side wall of the speaker base is opened with an avoiding opening, and the avoiding opening is aligned with the directional sound guiding opening, so that sound generated by the speaker is transmitted out of the avoiding opening.

5. The earphone according to claim 4, wherein the inner wall of the speaker holder is provided with a circle of inclined bosses, and the front end of the speaker is placed on the bosses and sealed and fixed, so that the speaker is arranged in an inclined state in the accommodating cavity.

6. The earphone of claim 4 wherein the inner wall of the housing has a plurality of ribs disposed along the direction of insertion of the speaker holder, and the outer wall of the speaker holder has a plurality of grooves for engaging the ribs.

7. The headset of claim 1, further comprising a microphone disposed within the housing for receiving sound signals for transmission to the control unit; the directional sound leading port is a strip-shaped opening; the outer wall of the inner shell is spherical.

8. The earphone as claimed in claim 1, wherein the rear end of the speaker is provided with a rear sound cavity, and the outer casing is provided with an air inlet hole, and the air inlet hole is communicated with the rear sound cavity.

9. The headset of claim 8, further comprising a first waterproof sound-transmitting member and a second waterproof sound-transmitting member; the first waterproof sound-transmitting piece is arranged at the directional sound-guiding opening; the second waterproof sound-transmitting piece is arranged at the air inlet.

10. The earphone according to claim 1, further comprising a connecting body, wherein the number of the suspension arms and the sound generating device is two, the two suspension arms are respectively arranged at two ends of the connecting body, each suspension arm is correspondingly connected with one sound generating device, and the control unit is arranged on the connecting body, the suspension arms or the sound generating device.