CN210807564U

CN210807564U - Earphone set

Info

Publication number: CN210807564U
Application number: CN201922316456.XU
Authority: CN
Inventors: 张�杰; 赵忠旭; 郭在康
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-06-19
Anticipated expiration: 2029-12-20

Abstract

The utility model discloses an earphone, include: the earphone shell is provided with a first sound hole and a second sound hole, a resonant cavity communicated with the first sound hole and the second sound hole is arranged in the earphone shell, the resonant cavity comprises a first connecting section communicated with the first sound hole and a second connecting section connected to the first connecting section in a bending mode, and the second connecting section is communicated with the second sound hole; the loudspeaker is arranged in the resonant cavity and comprises a first sound-emitting surface corresponding to the first sound hole, the loudspeaker further comprises a second sound-emitting surface back to the first sound-emitting surface, and sound emitted by the second sound-emitting surface is transmitted to the second sound hole through the resonant cavity. The technical scheme of the utility model can make the user wear the earphone for a long time, the uncomfortable feelings such as ear expanding, ear pressing that also can not arouse.

Description

Earphone set

Technical Field

The utility model relates to an earphone technical field especially relates to an earphone.

Background

At present, in busy work, the earphone can be brought to enable people to enjoy personal time belonging to the earphone at any time, so that the demand on the earphone is more and more, and the existing earphones all need users to insert the earphone into the ear of the people, and are easy to cause discomfort such as ear expansion and ear pressing after being worn for a long time.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the problem that the existing earphones require a user to insert the earphone of the earphone into the ear of the user, and discomfort such as ear expansion and ear pressing is easily caused when the existing earphones are worn for a long time, the earphone needs to be provided, and the existing earphones can be worn by the user for a long time without causing discomfort such as ear expansion and ear pressing.

In order to achieve the above object, the present invention provides an earphone, including:

the earphone shell is provided with a first sound hole and a second sound hole, a resonant cavity communicated with the first sound hole and the second sound hole is arranged in the earphone shell, the resonant cavity comprises a first connecting section communicated with the first sound hole and a second connecting section connected to the first connecting section in a bent mode, and the second connecting section is communicated with the second sound hole; and

the speaker, the speaker set up in the resonant cavity, the speaker is including corresponding the first sound production face in first sound hole, the speaker is still including dorsad the second sound production face of first sound production face, the sound warp that the second sound production face sent the resonant cavity transmits extremely the second sound hole.

Optionally, the first connecting section includes an installation chamber for accommodating the speaker, the earphone further includes a first partition plate and a second partition plate disposed inside the earphone housing, the first partition plate and the second partition plate are disposed on two sides of the first sound hole, and the installation chamber is formed between the first partition plate and the second partition plate.

Optionally, the first connecting section further includes an extending section disposed along the bottom wall of the earphone housing, one end of the extending section is communicated with the installation chamber, and the other end of the extending section is communicated with the second connecting section; the earphone is still including connect in the third division board of second division board, the third division board with form between the earphone casing diapire the extension section.

Optionally, the second connecting section includes a first section connected to the extending section in a bent manner and a second section connected to the first section in a bent manner, and the second section is communicated with the second sound hole.

Optionally, the central axis of the first segment and the central axis of the second segment are perpendicular.

Optionally, the earphone shell includes that it sets up the shell body and certainly the shell body is to the installation section that both ends extended respectively, first sound hole, second sound hole and intercommunication first sound hole with the second sound hole the resonant cavity is located the installation section.

Optionally, the first sound hole is disposed close to the casing body, and the second sound hole is disposed far from the casing body.

Optionally, the sectional area of the mounting section gradually increases from the mounting section to the direction away from the shell body.

Optionally, the bending position of the resonant cavity is a lead angle structure.

Optionally, the first sound hole and the second sound hole are circular, elliptical or square, and a dust-proof component is arranged at the first sound hole and the second sound hole.

In the technical proposal provided by the utility model, the earphone is worn at the neck position of the user, namely the earphone is hung at the neck position of the user, the surface of the earphone shell is provided with a first sound hole and a second sound hole which are open sound holes and are spaced from the ears by a certain distance, a resonant cavity communicated with the first sound hole and the second sound hole is arranged between the first sound hole and the second sound hole, by arranging the loudspeakers capable of transmitting sound to two directions at the corresponding positions of the first sound holes, the sound emitted by the first sound emitting surface of the loudspeaker is transmitted out through the first sound holes, the sound emitted by the second sound emitting surface of the loudspeaker is transmitted out through the second sound holes by the conduction of the resonant cavity, the sound emitted by the first sound holes and the sound emitted by the second sound holes are transmitted to the ears of a user after being superposed, therefore, the earphone can be prevented from being inserted into the ear of a person, and even if the user wears the earphone for a long time, the user can not feel uncomfortable, such as ear expansion and ear pressing.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of a partial cross-sectional structure of the earphone of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the earphone of the present invention;

FIG. 3 is a schematic diagram of the structure of the resonant cavity of FIG. 1;

fig. 4 is a schematic structural diagram of the loudspeaker in fig. 1;

FIG. 5 is a schematic view of the wall structure of the first connection section of FIG. 3;

FIG. 6 is a schematic view of the enhancement and attenuation regions formed when the user wears the earphone of the present invention;

fig. 7 is a schematic diagram of the sound received by the user and the third party according to the present invention;

FIG. 8 is a directional diagram of the user and third party listening to the sound of FIG. 7;

fig. 9 is a graphical illustration of the spectral response of the user and third party listening to the sound of fig. 7.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Earphone shell	32	Second connecting section
110	First sound hole	321	First section
				120	Second sound hole	322	Second section
20	Loudspeaker	41	First partition plate
				21	First sound-emitting surface	42	Second partition plate
22	Second sound producing surface	43	Third dividing plate
				30	Resonant cavity	11	Shell body
31	First connecting section	12	Mounting segment
				311	Installation room	50	User' s
312	Extension section	60	Third party

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides an earphone, including: earphone housing 10 and speaker 20 disposed in earphone housing 10.

The earphone housing 10 is provided with a first sound hole 110 and a second sound hole 120, a resonant cavity 30 communicating the first sound hole 110 and the second sound hole 120 is disposed inside the earphone housing 10, when a user uses an earphone to enjoy music, the earphone housing 10 is usually hung on the neck of the user, and various electronic components, such as a circuit board, a battery connected to the circuit board, and the like are disposed in the earphone housing 10.

Referring to fig. 3, the resonator 30 includes a first connecting section 31 communicating with the first sound hole 110 and a second connecting section 32 bent and connected to the first connecting section 31, the second connecting section 32 communicating with the second sound hole 120. The opening shapes of the first sound hole 11 and the second sound hole 12 are selected from various shapes, such as a circle, an ellipse, a square, or a strip, and the first sound hole 110 and the second sound hole 120 mainly function to ensure that sound emitted from the speaker 20 can be radiated. The cavity 30 is also referred to as a resonant cavity, and sound emitted from the speaker 20 propagates in the cavity and exits through the second sound hole 120. That is, by designing the bending design of the resonant cavity 30, the cavity length of the resonant cavity 30 can be increased, and the propagation distance of sound in the resonant cavity 130 can be controlled, so that the phase difference is generated between the first sound hole 110 and the second sound hole 120.

Referring to fig. 4, speaker 20 is disposed in cavity 30. for example, speaker 20 may be adhesively disposed in cavity 30 or may be welded to cavity 30. The speaker 20 includes a first sound emission surface 21 corresponding to the first sound hole 110, the speaker 20 further includes a second sound emission surface 22 facing away from the first sound emission surface 21, and sound emitted from the second sound emission surface 22 is transmitted to the second sound hole 120 through the resonant cavity 30. The frequencies of sound emitted from the first sound emission surface 21 and the second sound emission surface 22 by the speaker 20 are the same. The speaker 20 is disposed corresponding to the first sound hole 110, and it is understood that the first sound emitting surface 21 of the speaker 20 is disposed opposite to the first sound hole 110.

In the technical solution provided by the present invention, the earphone is worn on the neck of the user, that is, the earphone is hung on the neck of the user, the first sound hole 110 and the second sound hole 120 are opened on the surface of the earphone housing 10, the first sound hole 110 and the second sound hole 120 are open sound holes and spaced from the ear by a certain distance, the resonant cavity 30 is connected between the first sound hole 110 and the second sound hole 120, the speaker 20 capable of transmitting sound to two directions is disposed at the position corresponding to the first sound hole 110, the sound emitted from the first sound emitting surface 21 of the speaker 20 is transmitted through the first sound hole 110, the sound emitted from the second sound emitting surface 22 of the speaker 20 is transmitted through the resonant cavity 30 and is transmitted through the second sound hole 120, the sound emitted from the first sound hole 110 and the second sound hole 120 is transmitted to the ear of the user after being superimposed, thereby preventing the earphone from being inserted into the ear of the user, even if the user wears the earphone for a, and discomfort such as ear expansion and ear pressing caused by the ear pressing can be avoided. In addition, the resonant cavity 30 includes a first connecting section 31 connected to the first sound hole 110 and a second connecting section 32 bent and connected to the first connecting section 31, the second connecting section 32 is connected to the second sound hole 120, and the cavity length of the resonant cavity 30 can be increased by the bent design of the resonant cavity 30, so that a phase difference can be generated between sounds passing through the first sound hole 110 and the second sound hole 120, a sound enhancement region can be generated in a user listening region, and a sound attenuation region can be generated in a side region of a user.

Referring to fig. 5, further, the first connection section 31 includes a mounting chamber 311 for accommodating the speaker 20, and the earphone further includes a first partition plate 41 and a second partition plate 42 disposed inside the earphone housing 10, the first partition plate 41 and the second partition plate 42 being disposed at both sides of the first sound hole 110, and the mounting chamber 311 being formed between the first partition plate 41 and the second partition plate 42. The speaker 20 is used to emit sound waves, and generally speaking, when the speaker 20 is installed in the headphone housing 10, the speaker 20 occupies a certain space, and therefore, it is necessary to open an installation chamber 311 inside the headphone housing 10 and install the speaker 20 in the installation chamber 311.

Further, the first connecting section 31 further includes an extending section 312 disposed along the bottom wall of the earphone housing 10, one end of the extending section 312 is communicated with the installation chamber 311, and the other end is communicated with the second connecting section 32; the earphone further comprises a third partition plate 43 connected to the second partition plate 42, and an extension 312 is formed between the third partition plate 43 and the bottom wall of the earphone housing 10. Generally, the first sound hole 110 and the second sound hole 120 are opened on the upper surface of the earphone housing 10, and the extension section 312 extends along the bottom wall of the earphone housing 10 to increase the distance from the second sound hole 120, so that the resonant cavity 30 has a sufficient cavity length. In addition, by the isolation function of the third partition plate 43, the extension section 312 is formed inside the earphone housing 10, between the third partition plate 43 and the inner bottom wall of the earphone housing 10.

The cavity length distance L of the resonant cavity 30 satisfies: and L is (1+2k) × 85/f, wherein k is an integer and f is the upper limit of the silencing frequency. In the bending cavity of the resonant cavity 13, the cavity length L is the propagation distance of the sound wave in the resonant cavity 13. In the process of using the earphone, since the first sound hole 110 and the second sound hole 120 are spaced from the human ear by a certain distance, in order to ensure that the human ear can receive clear sound, the sound emitted from the first sound hole 110 and the sound emitted from the second sound hole 120 need to be superimposed on each other in amplitude, and meanwhile, the size of the sound received by people around the user needs to be reduced, or people near the user cannot hear the sound emitted from the earphone clearly. Specifically, as shown in fig. 6 and 7, the calculated sound intensity I received by the user is, in accordance with the cavity length L of the resonant cavity 30, I

Wherein A is a constant, c₀Is the speed of sound, p₀In order to transmit the medium density of the sound wave, r is the distance between the user and the midpoint of the line connecting the first sound hole 110 and the second sound hole 120, θ is the angle formed between the user and the first sound hole 110 and the second sound hole 120, θ is in the range of 0 ° to 360 °, and k is ω/c₀ω is the sound wave frequency, and the directivity shape of the sound when the user hears the sound is ∞ shaped by the above formula, and as shown in fig. 8, when the user wears the headphone to listen to the sound, the directivity shape of the sound can be calculated. The position of the user's ear is within the enhanced region of sound.

Referring to fig. 9, when using the headset, it can be seen that the loudness of the user 50 is higher at low frequencies, compared to the responsiveness of the user 50 and the third party 60 to sound at low frequencies, and the human ear is the main range where a person can listen to sound at low frequencies. The low frequency range of sound is generally 20-200 HZ. That is, the sound emitted from the first sound hole 110 and the second sound hole 120 is directed to realize low-frequency band superposition near the human ear through the length of the resonant cavity 30, so that the sound heard by the human ear is clearer, and the quality of the received sound is improved. In addition, the low-frequency sound cancellation can be directionally realized at the position of the third party 60 of the user 50, so that the volume of sound received by the third party 60 is reduced, and the privacy of the user is further protected.

Further, the equivalent diameter of the resonant cavity 30 is R, and L is greater than 10R. The equivalent diameter R refers to the diameter of a circle of irregular shape, the same cross-sectional area. After the distance L between the first sound hole 110 and the second sound hole 120 is determined, the equivalent diameter R is less than L/10 according to the distance L, so that the equivalent diameter R of the resonant cavity 30 is prevented from being too large, and the quality of transmitted sound is ensured.

Referring to fig. 8, in one embodiment, the second connecting section 32 includes a first section 321 connected to the extending section 312 in a bent manner and a second section 322 connected to the first section 321 in a bent manner, and the second section 322 is communicated with the second sound hole 120. It can be seen that the sound emitted from the speaker 20 is transmitted to the second sound hole 120 through the second sound emission surface 22 via the mounting chamber 311, the extension 312, the first segment 321, and the second segment 322 in this order, and the second sound emission surface 22 increases the propagation distance after the transmission, so that the sound emitted from the second sound hole 120 and the sound emitted from the first sound hole 110 are out of phase with each other, thereby generating an enhancement region and a damping region of the sound.

Further, the central axis of the first section 321 and the central axis of the second section 322 are perpendicular. The central axis of the first segment 321 refers to a straight line passing through the center of the first segment 321 in the sound propagation direction, and the central axis of the second segment 322 refers to a straight line passing through the center of the second segment 322 in the sound propagation direction. It can be seen that the propagation direction of the sound in the first segment 321 and the propagation direction in the second segment 322 are perpendicular to each other. That is, the first section 321 is along the sidewall of the earphone housing 10, and the second section 322 is along the top wall of the earphone housing 10, so that the cavity length of the resonant cavity 30 can be increased.

Further, earphone shell 10 includes an arc-shaped shell body 11 and a mounting section 12 extending from shell body 11 to two ends, respectively, and first sound hole 110, second sound hole 120 and resonant cavity 30 communicating first sound hole 110 and second sound hole 120 are disposed in mounting section 12. Generally, when a user uses the earphone to enjoy music, the earphone is worn on the neck of the user, the earphone housing 10 includes a housing body 11 in an arc shape, and the housing body 11 is hung on the neck of the user to better conform to the human body design.

In addition, the installation contact range of the earphone and the user is enlarged through the installation section 12 extending out of the shell body 11, so that the user can wear the earphone more firmly. Furthermore, the first sound hole 110 and the second sound hole 120 and the resonant cavity 13 are disposed in the mounting section 12, that is, the mounting section 12 provides a sufficient mounting space.

In one embodiment, the first sound hole 110 is disposed near the case body 11, and the second sound hole 120 is disposed far from the case body 10. It is understood that when the user wears the earphone, the first sound hole 110 is positioned closer to the ear of the user and the second sound hole 120 is positioned at the front side facing the user, so that an enhanced region of sound superposition and a reduced region of sound cancellation are formed at the front side and the ear of the user by positioning the first sound hole 110 and the second sound hole 120.

Further, the sectional area of the mounting section 12 gradually increases from the mounting section 12 in the direction away from the housing body 11. The resonant cavity 30 is disposed in the mounting section 12, and the sectional area of the mounting section 12 is gradually increased, that is, the length of the resonant cavity 30 is set to have more selection ranges, so that the length of the resonant cavity 30 can be conveniently adjusted.

In one embodiment, the bending position of the resonant cavity 30 is a chamfered structure, and the chamfered structure is disposed at the bending position of the resonant cavity 30, so that the sound can be prevented from being reflected during the transmission process. And the sound is ensured to be transmitted smoothly.

In one embodiment, the first sound hole 110 and the second sound hole 120 are circular, oval or square, and the dust-proof member is disposed at the position of the first sound hole 110 and the second sound hole 120. The shapes of the first sound hole 110 and the second sound hole 120 can be set according to design and use requirements, the first sound hole 110 and the second sound hole 120 mainly have the function of enabling sound to be transmitted out through the first sound hole 110 and the second sound hole 120, and in addition, dust can be prevented from falling into the resonant cavity 30 by arranging the dustproof parts at the positions of the first sound hole 110 and the second sound hole 120, and the influence on sound transmission due to dust accumulation is avoided. For example, the dust-proof member includes dust-proof cloth or a dust-proof net.

The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.

Claims

1. An earphone, characterized in that the earphone comprises:

2. The earphone of claim 1, wherein the first connection section comprises a mounting chamber for receiving the speaker, the earphone further comprising a first partition plate and a second partition plate disposed inside the earphone housing, the first partition plate and the second partition plate being disposed on both sides of the first sound hole, the first partition plate and the second partition plate forming the mounting chamber therebetween.

3. The earphone of claim 2, wherein the first connecting section further comprises an extension section disposed along the bottom wall of the earphone housing, one end of the extension section being in communication with the installation chamber, and the other end of the extension section being in communication with the second connecting section; the earphone is still including connect in the third division board of second division board, the third division board with form between the earphone casing diapire the extension section.

4. The earphone according to claim 3, wherein the second connection section includes a first section connected to the extension section at a bent position and a second section connected to the first section at a bent position, the second section communicating with the second sound hole.

5. The headset of claim 4, wherein a central axis of the first segment and a central axis of the second segment are perpendicular.

6. The earphone according to any one of claims 1-5, wherein the earphone housing comprises a housing body and a mounting section extending from the housing body to two ends, wherein the first sound hole, the second sound hole and the resonant cavity communicating the first sound hole and the second sound hole are disposed in the mounting section.

7. The earphone according to claim 6, wherein the first sound hole is provided near the housing body and the second sound hole is provided far from the housing body.

8. The earphone according to claim 7 wherein the mounting section increases in cross-sectional area as one progresses away from the housing body.

9. The earphone as claimed in any one of claims 1 to 5, wherein the bending position of the resonance cavity is a chamfered structure.

10. The earphone according to any one of claims 1 to 5, wherein the first sound hole and the second sound hole are circular, elliptical or square in shape, and a dust-proof member is provided at the positions of the first sound hole and the second sound hole.