CN209642946U - A kind of earphone, earphone system and earphone charging system - Google Patents
A kind of earphone, earphone system and earphone charging system Download PDFInfo
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- CN209642946U CN209642946U CN201920826331.9U CN201920826331U CN209642946U CN 209642946 U CN209642946 U CN 209642946U CN 201920826331 U CN201920826331 U CN 201920826331U CN 209642946 U CN209642946 U CN 209642946U
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Abstract
It includes first shell that the utility model, which discloses a kind of earphone, earphone system and earphone charging system, earphone, and first circuit board, loudspeaker and microphone array are provided in the first shell；The microphone array is set to the first side of the first circuit board, and the loudspeaker is set to first circuit board second side opposite with the first side；The microphone array includes at least two microphones；At least two microphone is arranged in array in the same plane.Earphone provided by the utility model can effectively inhibit noise and interference signal, improve signal-to-noise ratio.
Description
Technical field
The utility model relates to earphone field more particularly to a kind of earphones, earphone system and earphone charging system.
Background technique
In today of information-intensive society high speed development, people are when being widely used mobile communication digital product, due to each occupation
Crowd's Working Life needs, and bluetooth headset is born therewith, and since its portability and wireless feature have obtained rapidly market
Approval.
Traditional bluetooth headset using microphone realize sound-recording function, but single microphone generally use be frequency domain into
Row power spectrum is offset and the methods of filtering inhibition noise, voice signal and noise signal typically overlap with each other on frequency spectrum, therefore,
Noise and interference signal cannot effectively be inhibited.
Utility model content
The utility model provides a kind of earphone, earphone system and earphone charging system, can inhibit noise and interference letter
Number, improve signal-to-noise ratio.
In a first aspect, the utility model provides a kind of earphone, the earphone includes first shell, in the first shell
It is provided with first circuit board, loudspeaker and microphone array；
The microphone array is set to the first side of the first circuit board, and the loudspeaker is set to first electricity
Road plate second side opposite with the first side；
The microphone array includes at least two microphones；
At least two microphone is arranged in array in the same plane.
Optionally, when the earphone is in wearing state, the sound source side of plane and user where the microphone array
To vertical.
Optionally, the position that the first shell corresponds to the microphone is provided with aperture.
Optionally, the position of the aperture is provided with strainer on the inner wall of the first shell.
Optionally, the microphone array is classified as microphone circular array, microphone Triangular array or microphone prismatic
Array.
Optionally, the spacing between microphone adjacent in the microphone array is more than or equal to user voice signal
The half of wavelength.
Optionally, the maximum quantity that the quantity of microphone accommodates in the microphone array for the first shell.
Optionally, the earphone further includes wireless communication chips and rechargeable battery, and the first circuit board is by described
One shell is separated into first chamber and second chamber, and the microphone and the wireless communication chips are located at the first chamber
Interior, the rechargeable battery is located in the second chamber.
Optionally, the first shell outer wall is provided with the hard contact for charging to the rechargeable battery.
Second aspect, the utility model provide a kind of earphone system, including symmetrical the first earphone and the second ear
Machine；
First earphone and the second earphone include first shell, and the first circuit is provided in the first shell
Plate, loudspeaker and microphone array；
The microphone array is set to the first side of the first circuit board, and the loudspeaker is set to first electricity
Road plate second side opposite with the first side；
The microphone array includes at least two microphones；
At least two microphone is arranged in array in the same plane.
The third aspect, the utility model embodiment provide a kind of earphone charging system, including charging cabin and as this is practical
Earphone system described in novel second aspect；
First earphone and the second earphone further include wireless communication chips, rechargeable battery；
The first shell outer wall is provided with the hard contact for charging to the rechargeable battery；
The charging cabin includes second shell, is provided with second circuit board and supplying cell in the second shell；
Be formed in the second shell with first earphone and matched two holding tanks of second earphone, it is described
It is provided in holding tank and the matched metal thimble of the hard contact.
In the utility model embodiment, by the way that microphone array is arranged in earphone, microphone array includes at least two
Microphone, at least two microphones are arranged in array in the same plane, can effectively inhibit noise and interference signal, improve
Signal-to-noise ratio.
Detailed description of the invention
The utility model is described in further detail below according to drawings and examples.
Fig. 1 is a kind of top view of earphone provided by the embodiment of the utility model；
Fig. 2 is the bottom view of earphone in Fig. 1；
Fig. 3 is the right view of earphone in Fig. 1；
Fig. 4 is the cross-sectional view of earphone in Fig. 1；
Fig. 5 is the arrangement schematic diagram of microphone array in earphone shown in FIG. 1；
Fig. 6 is the schematic diagram that microphone array provided by the embodiment of the utility model receives voice signal；
Fig. 7 is the voice signal drafting figure that the microphone array of 8 array elements receives when incidence angle is 0 degree；
Fig. 8 is the voice signal drafting figure that the microphone array of 8 array elements receives when incidence angle is 45 degree；
Fig. 9 is the voice signal drafting figure that the microphone array of 4 array elements receives when incidence angle is 0 degree；
Figure 10 be the beam angle of voice signal provided by the embodiment of the utility model, array element quantity and incident angle it
Between relation schematic diagram；
Figure 11 is a kind of schematic diagram of earphone system provided by the embodiment of the utility model；
Figure 12 is a kind of partial structural diagram in cabin of charging provided by the embodiment of the utility model.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer,
It is described in further detail below in conjunction with technical solution of the attached drawing to the utility model embodiment, it is clear that described reality
Applying example is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention,
It is practical new to belong to this for those skilled in the art's every other embodiment obtained without creative efforts
The range of type protection.
In the description of the present invention, unless otherwise clearly defined and limited, term " connected ", " connection ", " Gu
It is fixed " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
The utility model embodiment provides a kind of earphone, and Fig. 1 is a kind of earphone provided by the embodiment of the utility model
Top view, Fig. 2 are the bottom view of earphone in Fig. 1, and Fig. 3 is the right view of earphone in Fig. 1, and Fig. 4 is the cross-sectional view of earphone in Fig. 1,
As Figure 1-Figure 4, earphone includes first shell 110, and first circuit board 120, loudspeaker 130 are provided in first shell 110
And microphone array.
Microphone array is set to the first side of first circuit board 120, loudspeaker 130 be set to first circuit board 120 with
The opposite second side in first side.
Microphone array includes at least two microphones 140, and at least two microphones 140 are arranged in array in the same plane
Cloth.
Illustratively, first shell 110 includes main part 111 and earpiece portion 112, main part 111 and earplug portion
Divide 112 in default angle, in a particular embodiment, main part 111 is perpendicular to earpiece portion 112, the end of earpiece portion 112
Silica gel or sponge earplug 150 can be set.Main part 111 is provided with first circuit board 120, and first circuit board 120 is
PCBA (Printed Circuit Board Assembly) circuit board.Microphone 140 is attached to by surface-pasted mode
Far from the side of earpiece portion 112 on first circuit board 120, at least two microphones 140 are arranged in array.Loudspeaker 130 is set
It is placed in inside earpiece portion 112.
Microphone array is in addition to that can provide the time domain and frequency domain information of signal, additionally it is possible to provide the spatial domain letter of signal
Breath carries out space-time processing to the signal on the different directions of space received, to improve the quality of voice communication.Pass through
Preset algorithm, microphone array can have denoising, the functions such as auditory localization and tracking.Voice may be implemented in microphone array
Enhancing, method may include following situation:
One, the Microphone Array Speech enhancing formed based on fixed beam, passes through the signal received to each microphone
Compensation of delay is added, the road Shi Ge output signal is wanted to keep synchronizing in a direction, and keeps maximum in the incoming signal of the direction
Gain.Since the noise field in actual environment is mostly shot noise field, each microphone low frequency is relevant, compares in the effect of low frequency
Difference.
Two, the Microphone Array Speech enhancing based on Adaptive beamformer, Adaptive beamformer is to make extensively at present
A kind of microphone array voice enhancement method, the adaptive beam-forming algorithm occurred earliest, basic thought are at certain
Under the premise of the gain of direction useful signal is certain, keep the power of array output signal minimum.Filter coefficient is with input signal
Statistical property variation and make corresponding change.By adjusting filter coefficient so that the null of array is directed toward the side of interference noise
To improve array to the adaptability of environmental change.This method is usually small to noise source number in coherent noise field
It is more effective when microphone number.Common method has Frost method and generalized side lobe canceller GSC method.Based on the side GSC
Method improves, preferable for the effect of coherent noise field.It is formed relative to fixed beam, the method for Adaptive beamformer
The small number of the microphone needed.
Three, the Microphone Array Speech enhancing based on subspace.The basic thought of subspace method calculates signal
Then autocorrelation matrix or covariance matrix carry out singular value decomposition to it, will be divided into useful signal with noisy speech signals
Subspace and noise subspace are reconstructed signal using useful signal subspace, to obtain enhanced signal.
Four, microphone array is combined with single microphone enhancing technology, can be by single microphone speech enhancement technique and Mike
Wind array technique combines, including spectrum algorithm, speech parameter model, wavelet transformation, neural network, blind source separating etc..
In the utility model embodiment, by the way that microphone array is arranged in earphone, microphone array includes at least two
Microphone, at least two microphones are arranged in array in the same plane, can effectively inhibit noise and interference signal, improve
Signal-to-noise ratio.
Optionally, when earphone is in wearing state, the plane where microphone array is vertical with the Sounnd source direction of user.
Specifically, after user wears earphone, where the line and microphone array between the mouth and ear of user
Plane it is vertical.When user wears earphone, and user speaks, the earphone primary recipient sound that most weakness issues with a distance from earphone
Signal, that is to say, the voice signal that most weakness (at user's mouth) issues with a distance from earphone is received by earphone at first.From earphone away from
Line direction transmission of the voice signal between user's mouth and ear from the sending of most weakness, when between user's mouth and ear
Line it is vertical with microphone array when, ensure that microphone array is vertical with user's Sounnd source direction.When microphone array and use
When family Sounnd source direction is vertical, the normal direction of each microphone in microphone array is parallel with user's Sounnd source direction, such setting
The voice signal beam angle that can guarantee to receive in microphone array is minimum, and voice signal is concentrated, secondary lobe beam angle compared with
It is small, the signal-to-noise ratio of signal can be improved, reduce the decaying of sound；It, can be to different directions sound by using microphone array
Signal does time delay, synthesizes after phase shift, realizes noise suppression, reverberation removal, personal AF panel, sound source DF and location, array increasing
Benefit etc..
Optionally, microphone array is classified as microphone circular array, microphone Triangular array or microphone prismatic array.
Fig. 5 is the arrangement schematic diagram of microphone array in earphone shown in FIG. 1, as shown in figure 5, in a particular embodiment, microphone array
Column include 4 microphones, and 4 microphones are attached on first circuit board 120, and 4 microphones are arranged into microphone prismatic array.
It should be noted that microphone array is classified as microphone circular array, microphone positive three in the utility model embodiment
Angular array or microphone quadrate array, microphone array are not limited to above-mentioned array, can also be other shapes
The array of shape can be rationally arranged according to the interior spatial structure of earphone case.
Optionally, the spacing between microphone adjacent in microphone array is more than or equal to user voice signal wavelength
Half.In a particular embodiment, as shown in figure 5, the spacing (i.e. the side length of prismatic) between adjacent microphone 140 be greater than or
Person is equal to the half of user voice signal wavelength.
It is more than or equal to the half of user voice signal wavelength by the spacing between setting neighboring microphones, can drops
The interference between voice signal received between low neighboring microphones.Since the sound of each user is different, difference is used
The characteristics of wavelength of the voice signal at family is also different, can be according to each different user voice signal, determines user voice
The range of signal wavelength, so that it is determined that the spacing range between microphone array neighboring microphones, can in spacing range root
According to the spacing for needing to be arranged neighboring microphones.Wherein, voice signal between neighboring microphones can also be reduced by preset algorithm
Between interference, to realize the spacing shortened between each array element.
Optionally, the maximum quantity that the quantity of microphone 140 accommodates in microphone array for first shell 110, i.e., first
The maximum quantity that 120 surface of circuit board can attach.When the quantity of the array element of microphone array is bigger, microphone array is received
Voice signal (superposition that each array element receives voice signal) beam angle it is smaller, signal is more concentrated, so that signal-to-noise ratio is got over
Greatly, therefore, under the premise of space allows, the quantity of microphone in microphone array can be set to earphone case and accommodates wheat
The maximum quantity of gram wind, to improve signal-to-noise ratio.
The utility model embodiment for microphone array array element (microphone) quantity, voice signal and array element normal direction it
Between the angle influence of voice signal that microphone array is received with reference to following introductions:
As shown in fig. 6, the normal direction of voice signal and array element is angle o (also referred to as incidence angle), the spacing between array element is d,
The path difference of adjacent array element is τ, and A is the amplitude of voice signal, and w is the angular frequency of voice signal, and ψ is that adjacent array element receives sound
The phase difference of sound signal, f are the frequency of voice signal, and N is the quantity of array element.
Then τ=dsin θ/C；
ψ=2 × π × f × τ=2 × π × d × sin θ/λ；
Wherein, the voice signal that No. 0 array element receives are as follows: F0 (t)=Acoswt；
The voice signal that No. 1 array element receives is F1 (t)=Acos wt+ ψ；
The voice signal that N array element receives is Fn (t)=Acos wt+n ψ=ARe [e-jωt×e-jnψ]
Wherein, S (θ, t) is the total output amplitude of voice signal, and R (θ) is the total output amplitude of normalized voice signal.
S=1+a+a^2+a^3+ ...+a^ (N-1)=1-a^N/ (1-a)；
Normalization, obtains
According to the formula of R (θ), available microphone array receives voice signal.When incidence angle is 0 degree, 8 battle arrays
The voice signal that receives of microphone array of member is as shown in fig. 7, when incidence angle is 45 degree, the microphone array of 8 array element
For the voice signal received as shown in figure 8, when incidence angle is 0 degree, the microphone array of 4 array elements receives voice signal such as
Shown in Fig. 9.By the voice signal in comparison diagram 7- Fig. 9, the quantity of array element and the direction of incidence angle are changed, wheat can be influenced
The response curve of gram wind array.When array element quantity is bigger, voice signal beam angle is smaller, and signal is more concentrated, shared by secondary lobe
Ratio is lower；The change of incidence angle will affect the position angle of main lobe, beam angle and incidence angle, and array number is closed there is corresponding
It is different from distribution that system, different array element quantity and incidence angle cause the beam angle of voice signal, to influence signal-to-noise ratio etc..
Voice signal, the beam angle of available voice signal, array element are received by drawing different microphone arrays
Relationship between quantity and incident angle, as shown in Figure 10, A are the voice signal wave that the microphone array of 16 array elements receives
The curve that fast width changes with incidence angle, B are the voice signal velocity of wave width that receives of microphone array of 128 array elements with incidence
The curve of angle variation: C is the song that the voice signal velocity of wave width that the microphone array of 1024 array elements receives changes with incidence angle
Line.By comparing tri- curves of A, B and C it is found that beam angle is most narrow when incidence angle is 0 degree.Incidence angle is bigger, secondary lobe wave beam
Width is smaller, and voice signal is lower.Array element quantity is bigger, and beam angle is smaller, and signal is more concentrated, and signal-to-noise ratio is bigger.
Optionally, as shown in Figure 1, the position that first shell 110 corresponds to microphone 140 is provided with aperture 113, the is reduced
Blocking of one shell 110 to voice signal.
Optionally, the position of aperture 113 is provided with strainer (not shown) on the inner wall of first shell 110, avoids outer
Boundary's dust is entered inside earphone by aperture 113, improves the protective performance of earphone.
Optionally, earphone is wireless headset, specifically, can be bluetooth headset, as shown in figure 5, the earphone further includes nothing
Line communication chip 160 and rechargeable battery 170.Specifically, first shell 110 is separated into first chamber by first circuit board 120
And second chamber, microphone 140 and wireless communication chips 160 are located in first chamber, and are attached on first circuit board 120,
Rechargeable battery 170 is located in second chamber.
As shown in Fig. 2, 110 outer wall of first shell is provided with the hard contact 114 for charging to rechargeable battery 170.
The utility model provides a kind of earphone system, and Figure 11 is a kind of earphone system provided by the embodiment of the utility model
Schematic diagram, as shown in figure 11, which includes symmetrical the first earphone 10 and the second earphone 20, for a pair of of ear
Machine, the first earphone 10 can be left ear earphone, and the second earphone 20 can be auris dextra earphone.
As Figure 1-Figure 5, the internal structure of the first earphone 10 and the second earphone 20 can be above-mentioned with reference to the utility model
The earphone that embodiment provides, the first earphone 10 and the second earphone 20 include first shell 110, are arranged in first shell 110
There are first circuit board 120, loudspeaker 130 and microphone array.
Illustratively, first shell 110 includes main part 111 and earpiece portion 112, main part 111 and earplug portion
Divide 112 in default angle, in a particular embodiment, main part 111 is perpendicular to earpiece portion 112, the end of earpiece portion 112
Silica gel or sponge earplug 150 can be set.Main part 111 is provided with first circuit board 120, and first circuit board 120 is
PCBA (Printed Circuit Board Assembly) circuit board.Microphone 140 is attached to by surface-pasted mode
Far from the side of earpiece portion 112 on first circuit board 120, at least two microphones 140 are arranged in array.Loudspeaker 130 is set
It is placed in inside earpiece portion 112.
In the utility model embodiment, by the way that microphone array, microphone array is arranged in the first earphone and the second earphone
Column include at least two microphones, and at least two microphones are arranged in array in the same plane, can effectively inhibit noise with
And interference signal, improve signal-to-noise ratio.
Optionally, when the first earphone and the second earphone are in wearing state, plane and user where microphone array
Sounnd source direction is vertical.
Optionally, microphone array is classified as microphone circular array, microphone Triangular array or microphone prismatic array.
Optionally, the spacing between microphone adjacent in microphone array is more than or equal to user voice signal wavelength
Half.
Optionally, as shown in Figure 1, the position that first shell 110 corresponds to microphone 140 is provided with aperture 113, the is reduced
Blocking of one shell 110 to voice signal.
Optionally, the position of aperture 113 is provided with strainer (not shown) on the inner wall of first shell 110, avoids outer
Boundary's dust is entered inside earphone by aperture 113, improves the protective performance of earphone.
Optionally, the first earphone 10 and the second earphone 20 are wireless headset, specifically, can be bluetooth headset, such as Fig. 5 institute
Show, which further includes wireless communication chips 160 and rechargeable battery 170.Specifically, first circuit board 120 is by first shell
110 are separated into first chamber and second chamber, and microphone 140 and wireless communication chips 160 are located in first chamber, and are attached to
On first circuit board 120, rechargeable battery 170 is located in second chamber.
As shown in Fig. 2, 110 outer wall of first shell is provided with the hard contact 114 for charging to rechargeable battery 170.
The utility model embodiment provides a kind of earphone charging system, and earphone charging system is including charging cabin 30 and such as this
Utility model earphone system provided by the above embodiment.The internal structure of first earphone 10 and the second earphone 20 can refer to this reality
With novel earphone provided by the above embodiment, the first earphone 10 and the second earphone 20 include first shell 110, in first shell
First circuit board 120, loudspeaker 130 and microphone array are provided in 110.
Illustratively, first shell 110 includes main part 111 and earpiece portion 112, main part 111 and earplug portion
Divide 112 in default angle, in a particular embodiment, main part 111 is perpendicular to earpiece portion 112, the end of earpiece portion 112
Silica gel or sponge earplug 150 can be set.Main part 111 is provided with first circuit board 120, and first circuit board 120 is
PCBA (Printed Circuit Board Assembly) circuit board.Microphone 140 is attached to by surface-pasted mode
Far from the side of earpiece portion 112 on first circuit board 120, at least two microphones 140 are arranged in array.Loudspeaker 130 is set
It is placed in inside earpiece portion 112.
Wherein, the first earphone 10 and the second earphone 20 are wireless headset, specifically, the first earphone 10 and the second earphone 20 can
To be bluetooth headset.As shown in figure 5, the first earphone 10 and the second earphone 20 further include wireless communication chips 160 and chargeable electricity
Pond 170.Specifically, first shell 110 is separated into first chamber and second chamber, microphone 140 and nothing by first circuit board 120
Line communication chip 160 is located in first chamber, and is attached on first circuit board 120, and rechargeable battery 170 is located at second chamber
It is interior.
As shown in Fig. 2, 110 outer wall of first shell is provided with the hard contact 114 for charging to rechargeable battery 170.
Figure 12 is that a kind of partial structural diagram for charging cabin provided by the embodiment of the utility model is filled as shown in figure 12
Electric cabin 30 includes second shell 310, is provided with second circuit board and supplying cell (not shown) in second shell 310.
Be formed in second shell 310 with the first earphone 10 and matched two holding tanks of the second earphone 20, for placing
First earphone 10 and the second earphone 20 are provided with and the matched metal thimble 311 of hard contact 114 in holding tank.
When the first earphone 10 and the second earphone 20 are placed in holding tank, metal thimble 311 and corresponding hard contact 114
Electrical contact, supplying cell charge to the rechargeable battery in the first earphone 10 and the second earphone 20.
In the utility model embodiment, by the way that microphone array, microphone array is arranged in the first earphone and the second earphone
Column include at least two microphones, and at least two microphones are arranged in array in the same plane, can effectively inhibit noise with
And interference signal, improve signal-to-noise ratio.
In the description of this article, it is to be understood that term " on ", "lower", " right side ", etc. orientation or positional relationships be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description and simplification and operates, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.In addition, term " first ", " second ", are only used to distinguish between description, have no special meaning.
In the description of this specification, the description of reference term " embodiment ", " example " etc. means to combine the embodiment
Or example particular features, structures, materials, or characteristics described are contained at least one embodiment or example of the utility model
In.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the embodiments can also be appropriately combined, and forming those skilled in the art can
With the other embodiments of understanding.
Technical principle of the utility model has been described above with reference to specific embodiments.These descriptions are intended merely to explain this reality
With novel principle, and it cannot be construed to the limitation to scope of protection of the utility model in any way.Based on the explanation herein,
Those skilled in the art, which does not need to pay for creative labor, can associate with other specific implementation modes of this utility model,
These modes are fallen within the protection scope of the utility model.
Claims (11)
1. a kind of earphone, which is characterized in that the earphone includes first shell, and the first circuit is provided in the first shell
Plate, loudspeaker and microphone array；
The microphone array is set to the first side of the first circuit board, and the loudspeaker is set to the first circuit board
Second side opposite with the first side；
The microphone array includes at least two microphones；
At least two microphone is arranged in array in the same plane.
2. earphone according to claim 1, which is characterized in that when the earphone is in wearing state, the microphone array
Plane where arranging is vertical with the Sounnd source direction of user.
3. earphone according to claim 1, which is characterized in that the position that the first shell corresponds to the microphone is set
It is equipped with aperture.
4. earphone according to claim 3, which is characterized in that the position of the aperture is set on the inner wall of the first shell
It is equipped with strainer.
5. earphone according to claim 1, which is characterized in that the microphone array is classified as microphone circular array, microphone
Triangular array or microphone prismatic array.
6. earphone according to claim 5, which is characterized in that in the microphone array between adjacent microphone between
Away from the half for being more than or equal to user voice signal wavelength.
7. earphone according to claim 1, which is characterized in that the quantity of microphone is described the in the microphone array
The maximum quantity that one shell accommodates.
8. earphone according to claim 1, which is characterized in that it further include wireless communication chips and rechargeable battery, it is described
The first shell is separated into first chamber and second chamber, the microphone and the wireless communication chips by first circuit board
In the first chamber, the rechargeable battery is located in the second chamber.
9. earphone according to claim 8, which is characterized in that the first shell outer wall is provided with for that can fill to described
The hard contact of battery charging.
10. a kind of earphone system, which is characterized in that including symmetrical the first earphone and the second earphone；
First earphone and the second earphone include first shell, and first circuit board is provided in the first shell, is raised
Sound device and microphone array；
The microphone array is set to the first side of the first circuit board, and the loudspeaker is set to the first circuit board
Second side opposite with the first side；
The microphone array includes at least two microphones；
At least two microphone is arranged in array in the same plane.
11. a kind of earphone charging system, which is characterized in that including charging cabin and earphone system as claimed in claim 10；
First earphone and the second earphone further include wireless communication chips, rechargeable battery；
The first shell outer wall is provided with the hard contact for charging to the rechargeable battery；
The charging cabin includes second shell, is provided with second circuit board and supplying cell in the second shell；
It is formed in the second shell and first earphone and matched two holding tanks of second earphone, the receiving
It is provided in slot and the matched metal thimble of the hard contact.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920826331.9U CN209642946U (en) | 2019-06-03 | 2019-06-03 | A kind of earphone, earphone system and earphone charging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920826331.9U CN209642946U (en) | 2019-06-03 | 2019-06-03 | A kind of earphone, earphone system and earphone charging system |
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| CN209642946U true CN209642946U (en) | 2019-11-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110099330A (en) * | 2019-06-03 | 2019-08-06 | 广州由我科技股份有限公司 | A kind of earphone, earphone system and earphone charging system |
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2019
- 2019-06-03 CN CN201920826331.9U patent/CN209642946U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110099330A (en) * | 2019-06-03 | 2019-08-06 | 广州由我科技股份有限公司 | A kind of earphone, earphone system and earphone charging system |
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