CN115996341B - Noise reduction structure, pickup assembly and electronic equipment - Google Patents
Noise reduction structure, pickup assembly and electronic equipment Download PDFInfo
- Publication number
- CN115996341B CN115996341B CN202310291354.5A CN202310291354A CN115996341B CN 115996341 B CN115996341 B CN 115996341B CN 202310291354 A CN202310291354 A CN 202310291354A CN 115996341 B CN115996341 B CN 115996341B
- Authority
- CN
- China
- Prior art keywords
- surface section
- flow
- section
- noise reduction
- air flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000009467 reduction Effects 0.000 title claims abstract description 48
- 238000000926 separation method Methods 0.000 claims abstract description 69
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 16
- 239000003112 inhibitor Substances 0.000 claims description 19
- 239000011521 glass Substances 0.000 claims description 16
- 230000001603 reducing effect Effects 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 15
- 230000010349 pulsation Effects 0.000 abstract description 14
- 230000005764 inhibitory process Effects 0.000 abstract description 5
- 230000002829 reductive effect Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 210000000707 wrist Anatomy 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The embodiment of the application relates to the technical field of electronic equipment, and provides a noise reduction structure, a pickup assembly and electronic equipment. The noise reduction structure comprises a main body part and a flow inhibition part. The main body part is provided with a pickup hole and a contact surface, the pickup hole is provided with a pickup opening, the contact surface comprises a first surface section and a second surface section which is linearly connected with one end of the first surface section, which is far away from the second surface section, extends to the back side of the second surface section, and the pickup opening is formed in the second surface section; the flow inhibiting part is convexly arranged on the first surface section and is used for contacting at least part of air flow flowing from the second surface section to the first surface section along the contact surface. According to the noise reduction structure provided by the embodiment of the application, the airflow separation vortex of the pickup opening accessory can be destroyed through the flow inhibition part, so that the separation area is not easy to form separation vortex with larger size and fluid pulsation, and further noise caused by the separation vortex can be inhibited, namely, the interference of the airflow noise on the collected sound can be weakened when the sound collection is carried out through the pickup opening.
Description
Technical Field
The present application relates to the field of electronic devices, and in particular, to a noise reduction structure, a sound pickup assembly, and an electronic device.
Background
Along with rapid development of technology, various electronic devices are growing, so as to meet more and more demands of consumers, functions of the electronic devices are also being enriched and enhanced continuously, such as a photographing function, an image function, an audio function and the like, wherein the audio function mainly comprises sound collection and playing, sound collection is mainly realized through a sound pickup assembly in the electronic device, and in order to realize better sound collection effect, the requirements on noise reduction performance of the sound pickup assembly are higher.
When traditional electronic equipment is in use, noise can influence the sound collection function of pickup assembly in the electronic equipment to a certain extent, influences consumer use experience.
Disclosure of Invention
The embodiment of the application provides a noise reduction structure, a sound pickup assembly and electronic equipment, which are used for solving the problem that noise can influence the sound collection function of the sound pickup assembly in the electronic equipment to a certain extent when the electronic equipment in the related technology is used.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical scheme:
in a first aspect, a noise reduction structure is provided, comprising:
the sound pickup device comprises a main body part, wherein the main body part is provided with a sound pickup hole and a contact surface, the sound pickup hole is provided with a sound pickup opening, the contact surface comprises a first surface section and a second surface section linearly connected with one end of the first surface section, which is far away from the second surface section, extends towards the back side of the second surface section, the sound pickup opening is formed in the second surface section, and when an air flow contacts with the main body part, the air flow gradually separates from the first surface section after sequentially flowing from the third surface section to the second surface section along the contact surface, so that a separation area of the air flow is formed;
the flow inhibiting part is convexly arranged on the first surface section and is used for contacting at least part of the airflow flowing from the second surface section to the first surface section along the contact surface, and the flow inhibiting part occupies part of the separation area so as to destroy the formation of separation vortex.
According to the noise reduction structure provided by the embodiment of the application, the main body part is provided with the pickup hole and the contact surface, the contact surface comprises the first surface section and the second surface section which is linearly connected with one end of the first surface section, which is far away from the second surface section, extends to the back side of the second surface section, and the pickup hole is provided with the pickup opening formed in the first surface section, so that after the air flow contacts with the main body part, the air flow can gradually separate from the first surface section after flowing from the second surface section to the first surface section along the contact surface to form a separation area of the air flow, and the flow inhibition part is convexly arranged on the first surface section, so that the flow inhibition part occupies part of the separation area space, and the separation vortex is not easy to form, and the separation vortex and pulsation of fluid are not easy to form in a large size, so that noise caused by the separation vortex can be inhibited, namely, the interference caused by the air flow noise on the collected sound can be weakened when the sound is collected through the pickup opening.
In one embodiment, a plane perpendicular to the flow direction of the air flow is taken as a first reference plane, and in a linear direction perpendicular to the flow direction of the air flow, the projection of the sound pickup port on the first reference plane is at least partially overlapped with the projection of the flow inhibiting part on the first reference plane.
In one embodiment, in the linear direction, the projection of the sound pickup opening on the first reference plane is located inside the projection of the flow suppressing portion on the first reference plane.
In one embodiment, in the flow direction of the air flow, the distance between the side edge of the sound pick-up opening, which is close to the first surface section, and the flow suppressing portion is 3mm-5mm.
In one embodiment, the distance between the side of the sound pick-up opening near the first surface section and the flow suppressing portion is 4mm.
In one embodiment, the height of the flow inhibitor protruding from the first face section is less than 3mm.
In one embodiment, a plane parallel to the flow direction of the air flow is taken as a second reference plane, and the projection of the flow inhibiting part on the second reference plane is at least one of rectangle, square, circular arc and triangle, and the circular arc and the triangle are raised in a direction away from the first surface section.
In one embodiment, the connection part of the outer surface of the flow inhibiting part facing the second surface section and the first surface section adopts circular arc smooth transition.
In one embodiment, the connection between the second surface section and the first surface section adopts a circular arc smooth transition.
In one embodiment, the contact surface further comprises a third surface section linearly connected with one end of the second surface section away from the first surface section, the third surface section and the first surface section are respectively located at two opposite ends of the second surface section, one end of the third surface section away from the second surface section extends towards the back side of the second surface section, and the air flow can flow from the third surface section to the second surface section and the first surface section in sequence along the contact surface.
In one embodiment, the junction of the second face segment and the third face segment adopts a circular arc smooth transition.
In one embodiment, a plurality of the flow suppressing portions are provided, and the plurality of the flow suppressing portions are provided at intervals in the flow direction of the air flow.
In one embodiment, the flow inhibiting portion is integrally formed with the main body portion; or the flow inhibiting part and the main body part are connected in a bonding, clamping, welding or fastening way.
In a second aspect, there is provided a pickup assembly comprising:
the noise reduction structure of the first aspect;
and the microphone is communicated with the pickup hole.
In a third aspect, there is provided an electronic device comprising the pickup assembly of the second aspect.
In one embodiment, the electronic device is a headset, a mobile phone, a watch, a tablet, a notebook, or glasses.
The advantages of the pickup assembly provided by the embodiment of the second aspect of the present application with respect to the prior art and the advantages of the electronic device provided by the embodiment of the third aspect of the present application with respect to the prior art are similar to those of the noise reduction structure provided by the embodiment of the first aspect of the present application with respect to the prior art, and are not repeated herein.
Drawings
Fig. 1 is a perspective view of an electronic device provided in the related art;
fig. 2 is a perspective view of an electronic device according to a first embodiment of the present application;
FIG. 3 is a perspective view of a noise reduction structure in the electronic device shown in FIG. 2;
FIG. 4 is a top view of the noise reducing structure shown in FIG. 3;
FIG. 5 is a perspective view of another view of the noise reducing structure shown in FIG. 3;
FIG. 6 is a schematic view of the airflow direction of the noise reduction structure shown in FIG. 4 after contacting the airflow;
FIG. 7 is a front view of the noise reducing structure shown in FIG. 3;
FIG. 8 is a graph of simulated test of the frequency/sound pressure level correspondence of the noise reduction structure of FIG. 3 in different angles and different velocity airflow environments;
FIG. 9 is a graph of simulated frequency/sound pressure level correspondence for the noise reduction structure of FIG. 3, where the distance between the side of the sound pickup opening near the first face section and the flow inhibitor is 1mm, 2mm, 3mm, 4mm, 5mm, and 6mm, respectively;
fig. 10 is a perspective view of an electronic device according to a second embodiment of the present application;
FIG. 11 is a top view of the electronic device shown in FIG. 10;
FIG. 12 is an enlarged view at A in FIG. 11;
fig. 13 is a perspective view of an electronic device according to a third embodiment of the present application;
FIG. 14 is a perspective view of the electronic device of FIG. 13 from another perspective;
FIG. 15 is a top view of the electronic device shown in FIG. 14;
fig. 16 is an enlarged view at B in fig. 15.
Wherein, each reference sign in the figure:
1. a pickup assembly; 2. a radio hole; 3. vortex flow;
100. an electronic device;
10. a noise reduction structure; 11. a main body portion; 111. a sound pick-up hole; 1111. a sound pick-up port; 112. a contact surface; 1121. a first face segment; 1122. a second face segment; 1123. a third face section; 12. a flow suppressing portion;
20. an ear insertion part;
30. a dial;
40. a temple;
50. a lens.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
In the description of the present application, it should be understood that the terms "length," "width," "thickness," "top," "bottom," "inner," "outer," "upper," "lower," "left," "right," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application.
The terms "first," "second," "third," "fourth," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. For example, the first pushing portion and the second pushing portion are merely for distinguishing between the different pushing portions, and are not limited in their order, and the first pushing portion may also be named as the second pushing portion, and the second pushing portion may also be named as the first pushing portion, without departing from the scope of the various described embodiments. And the terms "first," "second," "third," "fourth," and the like are not intended to limit the scope of the indicated features to be necessarily different.
In the present application, unless explicitly specified and limited otherwise, the terms "connected," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally formed, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, "and/or" is merely one association relationship describing the association object, meaning that three relationships may exist; for example, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
In this disclosure, the words "in one embodiment," "illustratively," "for example," and the like are used to mean by way of example, illustration, or description. Any embodiment or design described herein as "in one embodiment," "illustratively," "for example," should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "in one embodiment," "illustratively," "for example," and the like are intended to present related concepts in a concrete fashion.
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent.
In the related art, please refer to fig. 1, fig. 1 is a perspective view of an electronic device provided in the related art. The surface of electronic equipment often sets up to smooth curved surface, and the opening in the sound receiving hole 2 of pickup assembly 1 in the electronic equipment generally sets up at the surface of electronic equipment, and when using electronic equipment, noise can influence the sound collection function of pickup assembly 1 in the electronic equipment to a certain extent, influences consumer's use experience.
When the electronic device and the air move relatively, such as when a user wears the electronic device and is in a windy occasion, or when the user wears the electronic device and moves, airflow flows on the surface of the electronic device, and after the airflow flows along the surface of the electronic device, the airflow is separated from the surface of the electronic device at the tail end of the electronic device, and then vortex 3 and pulsation of fluid are generated in the separation area, and the vortex 3 generates noise and interferes with sound collection of the pickup assembly 1 through the opening of the sound receiving hole 2.
In view of the above, an embodiment of the present application provides a noise reduction structure applicable to a pickup assembly in an electronic device, which can improve the above technical problems.
In the embodiment of the present application, an electronic device provided with a noise reduction structure will be described as an example. The electronic device provided by the embodiment of the application can be an earphone, a wearable device (such as a watch), a mobile phone, glasses (such as AR glasses or VR glasses), a tablet personal computer, a notebook computer, a vehicle-mounted device and the like, but is not limited to the above.
In the first embodiment of the application, the electronic device is taken as an earphone as an example for description.
Referring to fig. 2, 3 and 4, fig. 2 is a perspective view of an electronic device 100 according to an embodiment of the application, fig. 3 is a perspective view of a noise reduction structure 10 in the electronic device 100 shown in fig. 2, and fig. 4 is a top view of the noise reduction structure 10 shown in fig. 3. The electronic device 100 is an earphone, and the noise reduction structure 10 includes a main body 11 and a flow suppressing portion 12. Wherein the main body 11 is provided with a sound pickup hole 111 and a contact surface 112, the sound pickup hole 111 has a sound pickup opening 1111, the contact surface 112 includes a first surface section 1121 and a second surface section 1122 linearly connected to one end of the first surface section 1121, the first surface section 1121 extends toward the back side of the second surface section 1122 from one end of the second surface section 1122, and the sound pickup opening 1111 is formed in the second surface section 1122; the flow inhibitor 12 is protruding from the first surface segment 1121, and the flow inhibitor 12 is configured to contact at least a portion of the airflow flowing along the contact surface 112 from the second surface segment 1122 to the first surface segment 1121.
After the air flows from the second surface section 1122 to the first surface section 1121 along the contact surface 112, since the flow suppressing portion 12 is protruded from the first surface section 1121, a part of the air flows to the flow suppressing portion 12, i.e., contacts the flow suppressing portion 12.
The back side of the second segment 1122 is the opposite side to the second segment 1122, for example, in fig. 4, the back side of the second segment 1122 is the upper side of the second segment 1122 when the second segment 1122 is oriented downward.
Taking the electronic device 100 as an example of a headset, the electronic device 100 further comprises an ear-in portion 20.
It will be appreciated that the main body 11 may be a stem of an earphone, and the ear-in portion 20 may be a plug of the earphone. The electronic device 100 may further include a microphone, which is in communication with the sound pickup hole 111, and may be disposed in the main body portion 11 or the in-ear portion 20, and the microphone, the main body portion 11, and the flow suppressing portion 12 may be jointly used as a part of a sound pickup assembly in the earphone, and sound outside the earphone enters the sound pickup hole 111 through the sound pickup hole 1111 and is collected by the microphone.
Alternatively, the flow inhibitor 12 may be provided in one or more. In the present embodiment, one flow inhibitor 12 is provided. In other embodiments, a plurality of flow suppressing portions 12 may be provided, and the plurality of flow suppressing portions 12 are disposed at intervals in the flow direction of the air flow.
It should be further appreciated that referring to fig. 5, fig. 5 is a perspective view of the noise reduction structure 10 shown in fig. 3 from another perspective. The contact surface 112 may further include a third surface section 1123 linearly connected to an end of the second surface section 1122 remote from the first surface section 1121, the third surface section 1123 and the first surface section 1121 being located at opposite ends of the second surface section 1122, respectively, the end of the third surface section 1123 remote from the second surface section 1122 extending toward the back side of the second surface section 1122, and the air flow may flow from the third surface section 1123 to the second surface section 1122 and the first surface section 1121 in sequence along the contact surface 112.
For example, referring to fig. 6 and fig. 7 together, fig. 6 is a schematic diagram of the airflow direction of the noise reduction structure 10 shown in fig. 4 after the noise reduction structure 10 contacts with the airflow, the direction of the dashed arrow in fig. 6 is the airflow direction, and fig. 7 is a front view of the noise reduction structure 10 shown in fig. 3. When the user wears the earphone, the ear-insertion portion 20 can be inserted into the ear hole of the user, the main body portion 11 is located outside the ear hole, the first face portion 1121 can be directed substantially toward the rear of the user, and external sound can enter the sound-collecting hole 111 through the sound-collecting port 1111. When the air flow contacts with the main body 11 in windward places or when a user wears a traditional earphone to move forward, the air flow can gradually separate from the first surface 1121 after flowing from the third surface 1123 to the second surface 1122 and the first surface 1121 along the contact surface 112, so as to form a separation area of the air flow, and the separation area can generate separation vortex and fluid pulsation, in this embodiment, the flow suppressing part 12 occupies part of the separation area space because the flow suppressing part 12 is convexly arranged on the first surface 1121, so that the separation vortex can be destroyed, the separation area is not easy to form separation vortex with larger size and fluid pulsation, noise caused by the separation vortex can be suppressed, noise interference caused by the air flow noise when sound is collected through the sound collecting hole 111 is reduced, namely noise interference caused by wind noise when sound is collected through the sound collecting hole 111 is reduced.
For example, if the electronic apparatus 100 is subjected to a wind noise test experiment with the direction toward the face of the user being 0 ° and the direction toward the ear hole of the user being 90 ° and the sound pickup opening 1111 being 90 ° and the intermediate position between the 0 ° and 90 ° directions being 45 ° directions, the test results obtained are shown in fig. 8.
Fig. 8 is a simulated test chart of the frequency/sound pressure level correspondence relationship of the noise reduction structure 10 shown in fig. 3 under different angles and different air flow environments, where the abscissa indicates the frequency, the ordinate indicates the sound pressure level (indicating the amount of wind noise reduction, the amount of wind noise reduction=the amount of wind noise in the original scheme-the amount of wind noise in the optimized scheme), and the higher the ordinate indicates the better the noise reduction effect. Experimental test results show that the flow inhibiting part 12 can generate better wind noise inhibition effect, and particularly, the flow inhibiting part aims at the inflow of 45-degree direction. It should be noted that, when the air flow flows toward the main body 11 in the direction of 0 °, the flow suppressing portion 12 is located at the rear end of the separation region, and the separation vortex is large, so that the noise reduction gain is large at 250Hz-500Hz, and when the air flow flows toward the main body 11 in the direction of 45 °, the flow suppressing portion 12 is located at the front end of the separation region, and the separation vortex is small, so that the noise reduction gain is large at 500Hz-4000 Hz.
Meanwhile, for the fluid at the same angle, the noise reduction effect of the noise reduction structure 10 at the wind speed of 8m/s is better than that at the wind speed of 6 m/s.
It will be appreciated that when the earphone is worn by a user, the ear-in portion 20 can be inserted into the ear hole of the user, the main body portion 11 is located outside the ear hole, and the first surface portion 1121 can also be generally oriented towards the front of the user, so that when the earphone is worn by the user in a leeward situation or when the earphone is worn by the user to move backward, the flow suppressing portion 12 occupies part of the space of the separation region, and thus the formation of the separation vortex can be destroyed, so that the separation vortex and the pulsation of fluid with larger size are not easy to form in the separation region, and noise caused by the separation vortex can be suppressed, and interference of airflow noise on noise caused when the sound is collected through the sound collecting hole 111 is reduced.
The first surface section 1121 and the second surface section 1122 are linearly connected, that is, the intersection between the first surface section 1121 and the second surface section 1122 is a straight line or a curved line, and the second surface section 1122 and the third surface section 1123 are linearly connected, that is, the intersection between the second surface section 1122 and the third surface section 1123 is a straight line or a curved line. The first surface section 1121, the second surface section 1122 and the third surface section 1123 may be curved surface sections or plane surface sections, or may be configured such that one or both of the first surface section 1121, the second surface section 1122 and the third surface section 1123 are curved surface sections, the rest of the first surface section 1121, the second surface section 1122 and the third surface section 1123 are plane surface sections, the connection between the first surface section 1121 and the second surface section 1122, and the connection between the third surface section 1123 and the second surface section 1122 may be arc smooth transition, that is, the first surface section 1121, the second surface section 1122 and the third surface section 1123 may be co-curved, or the first surface section 1121, the second surface section 1122 and the third surface section 1123 may be plane surface sections, and the first surface section 1121, the second surface section 1122, the third surface section 1123 and the second surface section 1122 may be linearly intersected.
It should be understood that the respective sizes of the first, second and third face segments 1121, 1122 and 1123 are not limited, nor are the junctions of the first and second face segments 1121, 1122 and the junctions of the third and second face segments 1123, 1122.
It should be noted that, the flow suppressing portion 12 may be directly integrally formed with the main body portion 11, such as integrally injection molding or integrally formed, or the flow suppressing portion 12 may be connected with the main body portion 11 by bonding, clamping, welding or fastening, and the fastening may be a screw or a bolt.
As can be seen from the foregoing, in the noise reduction structure 10 provided by the embodiment of the application, since the main body 11 is provided with the sound pickup hole 111 and the contact surface 112, the contact surface 112 includes the first surface section 1121 and the second surface section 1122 linearly connected to one end of the first surface section 1121, the first surface section 1121 extends from one end of the second surface section 1122 to the back side of the second surface section 1122, and the sound pickup hole 111 is formed in the first surface section 1121, when the air flow contacts the main body 11, the air flow gradually separates from the first surface section 1121 after flowing from the second surface section 1122 to the first surface section 1121 along the contact surface 112, forming a separation region of the air flow, and since the flow suppressing portion 12 protrudes from the first surface section 1121, the flow suppressing portion 12 occupies part of the separation region space, so as to break the formation of separation vortex, so that the separation region is not easy to form a separation vortex of a larger size and pulsation of fluid, and noise caused by the separation vortex can be suppressed, i.e., noise caused by the air flow noise during sound collection performed through the sound pickup hole 1111 can be reduced.
It will be appreciated that the earphone provided in the above embodiment may further include a control chip, a battery, a circuit board, and the like provided in the main body portion 11 or the ear-insertion portion 20.
Referring to fig. 5 to 7, in one embodiment, a plane perpendicular to a flow direction of the air flow (a direction of the air flow flowing from the second surface section 1122 to the first surface section 1121 along the contact surface 112 and contacting the flow suppressing portion 12) is taken as a first reference surface, any plane perpendicular to a plane in which the view of fig. 6 is located may be taken as the first reference surface, in this embodiment, a plane in which the view of fig. 7 is located is taken as the first reference surface, and in a linear direction perpendicular to the flow direction of the air flow, for example, in fig. 7, a linear direction perpendicular to the flow direction of the air flow is taken as an up-down direction, and a projection of the sound pick-up opening 1111 on the first reference surface and a projection of the flow suppressing portion 12 on the first reference surface at least partially overlap.
As can be appreciated, since the air flows from the second surface section 1122 to the first surface section 1121 along the contact surface 112, there is also an air flow flowing through the pickup opening 1111, and the air flow flowing through the pickup opening 1111 is gradually separated from the first surface section 1121 after flowing to the first surface section 1121, so as to form a separation area of the air flow, and generate separation vortex and pulsation of the fluid, and the separation vortex is closer to the pickup opening 1111 and more disturbing the sound collection through the pickup opening 1111, so that the projection of the pickup opening 1111 on the first reference surface is overlapped with the projection of the flow inhibitor 12 on the first reference surface at least partially, and the separation vortex generated by the air flow flowing through the pickup opening 1111 can be destroyed by the flow inhibitor 12 of the overlapped portion, thereby further weakening the disturbance of the air flow noise on the sound collection through the pickup opening 1111.
In order to better reduce the disturbance of the air flow noise caused when the sound collection is performed through the sound collection port 1111, the projection of the sound collection port 1111 on the first reference plane is located inside the projection of the flow suppressing portion 12 on the first reference plane in the linear direction. For example, in fig. 7, the linear direction is the up-down direction, the upper end of the flow suppressing portion 12 is higher than the upper end of the sound pickup opening 1111, and the lower end of the flow suppressing portion 12 is lower than the lower end of the sound pickup opening 1111, i.e., the length of the flow suppressing portion 12 in the up-down direction is longer than the length of the sound pickup opening 1111 in the up-down direction. With this arrangement, the flow suppressing portion 12 can destroy all the separation vortex generated by the air flow flowing through the sound collecting port 1111, so that the disturbance of the air flow noise to the sound collection through the sound collecting port 1111 can be further reduced.
Referring to fig. 3, 4 and 6, in the flow direction of the air flow (i.e., the direction in which the air flows from the second surface section 1122 to the first surface section 1121 along the contact surface 112 and contacts the flow suppressing portion 12), the distance d between the side edge of the sound pickup opening 1111 near the first surface section 1121 and the flow suppressing portion 12 is not as large as or as small as possible, and when d is too small, additional noise is caused, and when d is too large, the noise reducing effect of the noise reducing structure 10 is reduced.
For example, in the flow direction of the air flow, the distances d between the side edge of the sound pickup opening 1111 near the first surface section 1121 and the flow suppressing portion 12 are respectively 1mm, 2mm, 3mm, 4mm, 5mm, and 6mm, which are simulated test charts of the frequency/sound pressure level correspondence. As shown in fig. 9, the positions of the corresponding flow suppressing portions 12 are respectively position 1, position 2, position 3, position 4, position 5, and position 6, the abscissa is frequency, and the ordinate is sound pressure level (representing the amount of wind noise reduction, the amount of wind noise reduction=the amount of wind noise in the original scheme-the amount of wind noise in the optimized scheme), and a higher ordinate indicates a better noise reduction effect. Experimental test results show that in the flowing direction of the air flow, the noise reduction effect is better when the distance d between the side edge of the sound pickup opening 1111, which is close to the first surface section 1121, and the flow suppressing portion 12 is 3mm to 5mm (d is 3mm, 4mm, and 5mm correspond to the position 3, the position 4, and the position 5, respectively), and the noise reduction effect is better when the distance d between the side edge of the sound pickup opening 1111, which is close to the first surface section 1121, and the flow suppressing portion 12 is 4mm (corresponds to the position 4).
With continued reference to fig. 3, 4 and 6, in one embodiment, the height h of the flow inhibitor 12 protruding from the first face segment 1121 is less than 3mm, such as 2.8mm, 2.6mm, 1.5mm, or 1.2 mm. By the arrangement, the influence of the excessive size of the flow inhibiting part 12 on the assembly of other structures of the electronic equipment 100 can be avoided, the interference is avoided, and the appearance of the electronic equipment 100 is better.
Referring to fig. 3 and 6, in one embodiment, a plane parallel to the flow direction of the air flow (the flow direction of the air flow flowing from the second surface section 1122 to the first surface section 1121 along the contact surface 112 and contacting with the flow suppressing portion 12) is taken as a second reference surface, any plane parallel to the plane in which the view of fig. 6 is located may be taken as the second reference surface, and the second reference surface may be a cross section of the main body 11, for example, the plane in which the view of fig. 6 is located is taken as the second reference surface, and the projection of the flow suppressing portion 12 on the second reference surface is at least one of a rectangle, a square, a circular arc, and a triangle, and the circular arc and the triangle are convex in a direction away from the first surface section 1121. By such arrangement, the flow inhibiting portion 12 can be well contacted with at least part of the air flow flowing from the second surface section 1122 to the first surface section 1121 along the contact surface 112, and the structure of the flow inhibiting portion 12 can be simpler and the processing is convenient.
It will be appreciated that additional noise may be generated during the contact of the airflow with the flow inhibitor 12 as the airflow flows along the contact surface 112 from the second surface 1122 to the first surface 1121, and therefore, the arc of the arc may be smoothly transitioned between the outer surface of the flow inhibitor 12 facing the second surface 1122 and the first surface 1121, so that when the airflow flows along the contact surface 112 from the second surface 1122 to the first surface 1121, a portion of the airflow continues to flow smoothly along the outer surface of the flow inhibitor 12, thereby reducing the additional noise that may be generated during the contact of the airflow with the flow inhibitor 12.
In the second embodiment of the present application, the electronic device 100 is taken as a watch as an example for description.
Referring to fig. 10, 11 and 12, fig. 10 is a perspective view of an electronic device 100 according to a second embodiment of the present application, fig. 11 is a top view of the electronic device 100 shown in fig. 10, and fig. 12 is an enlarged view of a portion a in fig. 11. The electronic device 100 is a wristwatch including a main body 11, a current suppressing portion 12, and a dial 30. The main body 11 is provided with a sound pickup hole 111 and a contact surface 112, the sound pickup hole 111 is provided with a sound pickup opening 1111, the contact surface 112 comprises a first surface section 1121 and a second surface section 1122 linearly connected with one end of the first surface section 1121, one end of the first surface section 1121 far away from the second surface section 1122 extends to the back side of the second surface section 1122, the contact surface 112 further comprises a third surface section 1123 linearly connected with one end of the second surface section 1122 far away from the first surface section 1121, one end of the third surface section 1123 far away from the second surface section 1122 extends to the back side of the second surface section 1122, air flow can flow from the third surface section 1123 to the second surface section 1122 and the first surface section 1121 in sequence along the contact surface 112, and the sound pickup opening 1111 is formed in the second surface section 1122; the flow inhibitor 12 is protruding from the first surface segment 1121, and the flow inhibitor 12 is configured to contact at least a portion of the airflow after the airflow flows along the contact surface 112 from the second surface segment 1122 to the first surface segment 1121.
It will be appreciated that the body portion 11 may be integrally injection molded with the dial 30, i.e. the body portion 11 is part of the dial 30. The electronic device 100 may further include a microphone, which is in communication with the sound collection hole 111, and may be disposed in the main body portion 11 or the dial 30, and the microphone, the main body portion 11, and the flow suppressing portion 12 may be jointly used as a part of a sound collection assembly in the wristwatch, and sound outside the wristwatch may enter the sound collection hole 111 through the sound collection hole 1111 and be collected by the microphone.
It will also be appreciated that the watch may also include a wristband, a control chip, a circuit board, a battery, etc., disposed within the dial 30, through which the user wears the watch on the wrist.
Illustratively, when the user wears the watch, the main body 11 is positioned on the wrist of the user, the first face 1121 may be directed generally toward the rear of the user, and external sound may enter the sound-collecting hole 111 through the sound-collecting opening 1111. When the airflow contacts the main body 11 in windward places or when a user wears a conventional wristwatch, the airflow gradually separates from the first surface 1121 after flowing from the third surface 1123 to the second surface 1122 and the first surface 1121 along the contact surface 112, so as to form a separation area of the airflow, the direction of the dashed arrow in fig. 12 is the airflow flowing direction, and the separation area generates a separation vortex and a pulsation of the fluid, in this embodiment, since the flow suppressing portion 12 is convexly arranged on the first surface 1121, the flow suppressing portion 12 occupies a part of the separation area space, so that the separation vortex can be destroyed, so that the separation area is not easy to form a separation vortex with a larger size and a pulsation of the fluid, and noise caused by the separation vortex can be suppressed, noise caused by the separation vortex is reduced, noise interference caused when the airflow noise is used for collecting the sound through the sound collecting hole 111, that is noise interference caused when the wind noise is used for collecting the sound through the sound collecting hole 111 is reduced.
When the user wears the wristwatch, the main body 11 is located on the wrist of the user, and the first surface 1121 may be substantially oriented toward the front of the user, so that, in a leeward situation or when the user wears the wristwatch and moves the wristwatch backward, the flow suppressing portion 12 occupies a part of the space of the separation region, so that the separation region is broken, so that the separation vortex and the pulsation of the fluid with a relatively large size are not easily formed, the noise caused by the separation vortex is suppressed, and the noise interference caused by the airflow noise to the sound collection through the sound collection hole 111 is reduced.
In the third embodiment of the present application, the electronic device 100 is described as an example of glasses.
Referring to fig. 13, 14, 15 and 16, fig. 13 is a perspective view of an electronic device 100 according to a third embodiment of the present application, fig. 14 is a perspective view of another view of the electronic device 100 shown in fig. 13, fig. 15 is a top view of the electronic device 100 shown in fig. 14, and fig. 16 is an enlarged view at B in fig. 15. The electronic device 100 is a pair of glasses including a main body 11, a flow suppressing portion 12, a temple 40, and a lens 50. The main body 11 is provided with a sound pickup hole 111 and a contact surface 112, the sound pickup hole 111 is provided with a sound pickup opening 1111, the contact surface 112 comprises a first surface section 1121 and a second surface section 1122 linearly connected with one end of the first surface section 1121, one end of the first surface section 1121 far away from the second surface section 1122 extends to the back side of the second surface section 1122, the contact surface 112 further comprises a third surface section 1123 linearly connected with one end of the second surface section 1122 far away from the first surface section 1121, one end of the third surface section 1123 far away from the second surface section 1122 extends to the back side of the second surface section 1122, air flow can flow from the third surface section 1123 to the second surface section 1122 and the first surface section 1121 in sequence along the contact surface 112, and the sound pickup opening 1111 is formed in the second surface section 1122; the flow inhibitor 12 is protruding from the first surface segment 1121, and the flow inhibitor 12 is configured to contact at least a portion of the airflow after the airflow flows along the contact surface 112 from the second surface segment 1122 to the first surface segment 1121.
It will be appreciated that the body portion 11 may be integrally injection molded with the temple 40, i.e., the body portion 11 is part of the temple 40. The electronic device 100 may further include a microphone, which is in communication with the sound collection hole 111, and may be disposed in the main body portion 11 or the temple 40, and the microphone, the main body portion 11, and the flow suppressing portion 12 may be jointly used as a part of a sound collection assembly in the glasses, and sound outside the glasses enters the sound collection hole 111 through the sound collection hole 1111 and is collected by the microphone.
It will also be appreciated that the glasses may also include a control chip, circuit board, battery, etc. disposed within the temples 40 through which the user wears the glasses on their ears.
For example, when the user wears the glasses, the body portion 11 is positioned on the user's ear, the first face section 1121 may be directed generally toward the rear of the user, and external sound may enter the sound collection hole 111 through the sound collection opening 1111. When the air flow contacts the main body 11 in windward situations or when the user wears the conventional glasses, the air flow gradually separates from the first surface section 1121 after flowing from the third surface section 1123 to the second surface section 1122 and the first surface section 1121 along the contact surface 112, so as to form an air flow separation area, and the direction of the dashed arrow in fig. 16 is the air flow direction, so that the separation area generates separation vortex and pulsation of the fluid. In this embodiment, since the flow suppressing portion 12 is protruding on the first surface section 1121, the flow suppressing portion 12 occupies a part of the space of the separation area, so that the formation of the separation vortex can be destroyed, so that the separation area is not easy to form a separation vortex with a larger size and pulsation of fluid, and further noise caused by the separation vortex can be suppressed, noise interference caused by airflow noise to sound collected through the sound collecting hole 111 is reduced, that is, noise interference caused by wind noise to sound collected through the sound collecting hole 111 is reduced.
When the user wears the glasses, the main body 11 is located on the ear of the user, and the first surface 1121 may be generally directed toward the front of the user, so that, when the user is in a lee or the user wears the glasses to move backward, the flow suppressing portion 12 may occupy a part of the space of the separation area, so as to break the formation of the separation vortex, so that the separation area is not easy to form a separation vortex with a larger size and the pulsation of the fluid, and further, noise caused by the separation vortex may be suppressed, and noise interference caused by airflow noise to the collection of sound through the sound collecting hole 111 may be reduced.
Another embodiment of the present application provides a pickup assembly including the noise reduction structure 10 described above and a microphone in communication with the pickup hole 111.
It is understood that sound can enter the sound pickup hole 111 through the sound pickup opening 1111 and be picked up by the microphone.
An embodiment of another aspect of the present application provides an electronic device 100, where the electronic device 100 includes the pickup assembly described above, and the electronic device 100 may be an earphone, a mobile phone, a watch, a tablet computer, a notebook computer, or glasses.
The foregoing is merely illustrative embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present application, and the application should be covered.
Claims (15)
1. A noise reduction structure, comprising:
the sound pickup device comprises a main body part, wherein the main body part is provided with a sound pickup hole and a contact surface, the sound pickup hole is provided with a sound pickup opening, the contact surface comprises a first surface section and a second surface section which is linearly connected with one end of the first surface section, which is far away from the second surface section, extends towards the back side of the second surface section, the sound pickup opening is formed in the second surface section, the contact surface also comprises a third surface section which is linearly connected with one end of the second surface section, which is far away from the first surface section, is respectively positioned at two opposite ends of the second surface section, one end of the third surface section, which is far away from the second surface section, extends towards the back side of the second surface section, air flow can sequentially flow from the third surface section to the second surface section and the first surface section along the contact surface, after the air flow sequentially from the first surface section to the second surface section and the first surface section along the contact surface, and the air flow gradually separates from the third surface section after the air flow sequentially along the contact surface and the contact surface to form a separated area;
the flow inhibiting part is convexly arranged on the first surface section and is used for contacting at least part of the airflow flowing from the second surface section to the first surface section along the contact surface, and the flow inhibiting part occupies part of the separation area so as to destroy the formation of separation vortex.
2. The noise reduction structure according to claim 1, wherein a plane perpendicular to a flow direction of the air flow is taken as a first reference plane, and a projection of the sound pickup port on the first reference plane and a projection of the flow suppressing portion on the first reference plane are at least partially overlapped in a linear direction perpendicular to the flow direction of the air flow.
3. The noise reduction structure according to claim 2, wherein, in the linear direction, a projection of the sound pickup port on the first reference surface is located inside a projection of the flow suppressing portion on the first reference surface.
4. The noise reducing structure according to claim 2, wherein a distance between a side of the sound pickup opening adjacent to the first face section and the flow suppressing portion in a flow direction of the air flow is 3mm to 5mm.
5. The noise reducing structure according to claim 4, wherein a distance between a side of the sound pickup opening near the first face section and the flow suppressing portion is 4mm.
6. The noise reducing structure of claim 1, wherein the height of the flow inhibitor protruding from the first face section is less than 3mm.
7. The noise reduction structure according to claim 1, wherein a plane parallel to a flow direction of the air flow is taken as a second reference plane, and a projection of the flow suppressing portion on the second reference plane is at least one of a rectangle, a square, a circular arc, and a triangle, the circular arc and the triangle being convex in a direction away from the first surface section.
8. The noise reducing structure of claim 7, wherein the junction of the outer surface of the flow inhibitor facing the second face section and the first face section adopts a smooth transition of an arc.
9. The noise reducing structure of claim 1, wherein the junction of the second face segment and the first face segment is a smooth transition with an arc.
10. The noise reducing structure of claim 1, wherein the junction of the second face segment and the third face segment is a smooth transition with an arc.
11. The noise reduction structure according to any one of claims 1 to 9, wherein a plurality of the flow suppressing portions are provided, and a plurality of the flow suppressing portions are provided at intervals in a flow direction of the air flow.
12. The noise reduction structure according to any one of claims 1 to 10, wherein the flow suppressing portion is integrally provided with the main body portion; alternatively, the flow inhibiting portion is connected to the main body portion by means of bonding, clamping, welding or fastening.
13. A pickup assembly, comprising:
the noise reduction structure of any one of claims 1 to 12;
and the microphone is communicated with the pickup hole.
14. An electronic device comprising the pickup assembly of claim 13.
15. The electronic device of claim 14, wherein the electronic device is a headset, a cell phone, a watch, a tablet, a notebook, or glasses.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310291354.5A CN115996341B (en) | 2023-03-23 | 2023-03-23 | Noise reduction structure, pickup assembly and electronic equipment |
| CN202311126272.1A CN117255278B (en) | 2023-03-23 | 2023-03-23 | Electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310291354.5A CN115996341B (en) | 2023-03-23 | 2023-03-23 | Noise reduction structure, pickup assembly and electronic equipment |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311126272.1A Division CN117255278B (en) | 2023-03-23 | 2023-03-23 | Electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115996341A CN115996341A (en) | 2023-04-21 |
| CN115996341B true CN115996341B (en) | 2023-09-19 |
Family
ID=85995390
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311126272.1A Active CN117255278B (en) | 2023-03-23 | 2023-03-23 | Electronic equipment |
| CN202310291354.5A Active CN115996341B (en) | 2023-03-23 | 2023-03-23 | Noise reduction structure, pickup assembly and electronic equipment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311126272.1A Active CN117255278B (en) | 2023-03-23 | 2023-03-23 | Electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN117255278B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211056708U (en) * | 2019-09-10 | 2020-07-21 | 苏州敏芯微电子技术股份有限公司 | Silicon microphone packaging structure |
| CN113784252A (en) * | 2021-10-28 | 2021-12-10 | 歌尔科技有限公司 | Earphone and TWS earphone |
| WO2022048395A1 (en) * | 2020-09-02 | 2022-03-10 | 华为技术有限公司 | Wind noise preventing earphone |
| CN114697789A (en) * | 2020-12-29 | 2022-07-01 | 共达电声股份有限公司 | Earphone set |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5905803A (en) * | 1997-03-14 | 1999-05-18 | Motorola, Inc. | Flush-porting method and device for reduction of wind-induced noise in a microphone |
| DE102004011149B3 (en) * | 2004-03-08 | 2005-11-10 | Infineon Technologies Ag | Microphone and method of making a microphone |
| KR101464059B1 (en) * | 2010-04-06 | 2014-11-20 | 비덱스 에이/에스 | Hearing aid adapted for suppression of wind noise |
| CN105959837B (en) * | 2016-05-30 | 2020-01-03 | 歌尔股份有限公司 | Wind noise prevention microphone and earphone line control device |
| CN211240065U (en) * | 2020-03-17 | 2020-08-11 | 广州由我科技股份有限公司 | Noise reduction earphone |
| CN214675591U (en) * | 2021-03-24 | 2021-11-09 | 深圳市豪恩声学股份有限公司 | Wind noise resistant earphone |
| WO2023133846A1 (en) * | 2022-01-14 | 2023-07-20 | 深圳市韶音科技有限公司 | Wearable device |
-
2023
- 2023-03-23 CN CN202311126272.1A patent/CN117255278B/en active Active
- 2023-03-23 CN CN202310291354.5A patent/CN115996341B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211056708U (en) * | 2019-09-10 | 2020-07-21 | 苏州敏芯微电子技术股份有限公司 | Silicon microphone packaging structure |
| WO2022048395A1 (en) * | 2020-09-02 | 2022-03-10 | 华为技术有限公司 | Wind noise preventing earphone |
| CN114697789A (en) * | 2020-12-29 | 2022-07-01 | 共达电声股份有限公司 | Earphone set |
| CN113784252A (en) * | 2021-10-28 | 2021-12-10 | 歌尔科技有限公司 | Earphone and TWS earphone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117255278A (en) | 2023-12-19 |
| CN115996341A (en) | 2023-04-21 |
| CN117255278B (en) | 2024-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11979703B2 (en) | Eartips for coupling via wireform attachment mechanisms | |
| EP3949361B1 (en) | Electronic device including acoustic module | |
| US20230007109A1 (en) | Electronic device | |
| US20130163790A1 (en) | Microphone unit and electronic apparatus | |
| US20230229025A1 (en) | Wearable devices | |
| US11871541B2 (en) | Electronic device including vapor chamber | |
| CN115996341B (en) | Noise reduction structure, pickup assembly and electronic equipment | |
| CN215773527U (en) | Wireless earphone | |
| US11758340B2 (en) | Flexible circuit board of hearing aid and hearing aid | |
| CN112788465A (en) | Earphone set | |
| CN217642756U (en) | Charger and charging system | |
| CN217386003U (en) | Wearable equipment and wearing piece thereof | |
| CN217386001U (en) | Wearable equipment and wearing piece thereof | |
| KR20210036406A (en) | Portable audio equipment | |
| CN213581633U (en) | Intelligence bluetooth glasses | |
| CN207766485U (en) | Earphone | |
| CN117133301B (en) | Electronic equipment | |
| CN221926950U (en) | Watch shell and watch | |
| CN221306065U (en) | Earphone | |
| CN212785819U (en) | Vibrating diaphragm and loudspeaker device | |
| CN217335881U (en) | Noise reduction flat horn and headset | |
| CN117135517B (en) | Earphone | |
| CN217643712U (en) | Packaging structure of micro-electromechanical sensor and electronic equipment | |
| EP4276516A1 (en) | Wearing member, wearable apparatus and charging system | |
| TWI842238B (en) | A wearable device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |