CN219740581U - Noise reduction structure and noise reduction earphone - Google Patents
Noise reduction structure and noise reduction earphone Download PDFInfo
- Publication number
- CN219740581U CN219740581U CN202320864236.4U CN202320864236U CN219740581U CN 219740581 U CN219740581 U CN 219740581U CN 202320864236 U CN202320864236 U CN 202320864236U CN 219740581 U CN219740581 U CN 219740581U
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- Prior art keywords
- noise reduction
- plate
- battery
- bottom plate
- coil
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- 238000004804 winding Methods 0.000 claims abstract description 27
- 238000003475 lamination Methods 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000011889 copper foil Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 5
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 3
- 230000003631 expected effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a noise reduction structure and a noise reduction earphone, wherein the noise reduction structure comprises a battery, an FPC board and a loudspeaker, the battery comprises a battery core, the battery core comprises a positive electrode plate and a negative electrode plate, the periphery of the battery core is provided with a pole piece winding section, the pole piece winding section is a negative electrode section which is not wound with a positive electrode plate lamination, or the pole piece winding section is a positive electrode section which is not wound with a negative electrode plate lamination; the FPC board includes the bottom plate, be provided with the coil of making an uproar that falls in the bottom plate, the bottom plate set up in between the battery with loudspeaker, the coil of making an uproar falls with pole piece winding section length is the same, the current direction in the coil of making an uproar falls with the current direction of pole piece winding section is opposite. The noise reduction structure solves the influence of the battery magnetic field on the loudspeaker, thereby solving the problem of earphone bottom noise and improving the noise reduction effect.
Description
Technical Field
The utility model relates to the technical field of earphones, in particular to a noise reduction structure and a noise reduction earphone.
Background
In recent years, the Bluetooth noise reduction structure is updated and iterated, and is widely applied to occasions such as household life, public transportation, outdoor exercises, flight driving, business conversation and the like. The battery of current structure of making an uproar falls mostly all is processed with coiling or lamination technology and forms, and the sensitivity of the loudspeaker of structure of making an uproar falls in addition is higher, and when the structure of making an uproar was fallen in the structure during operation, the electric current of battery changes and produces the magnetic field of change, and loudspeaker receives the interference of this magnetic field this moment easily to produce and disturb the noise floor, make the noise reduction effect of this structure of making an uproar worse.
Disclosure of Invention
Aiming at the problem that the existing noise reduction structure is poor in noise reduction effect, the utility model provides a noise reduction structure and a noise reduction earphone.
In one aspect, the utility model provides a noise reduction structure, which comprises a battery, an FPC board and a loudspeaker, wherein the battery comprises a battery core, the battery core comprises a positive plate and a negative plate, the periphery of the battery core is provided with a pole piece winding section, the pole piece winding section is a negative plate section which is not wound with a positive plate lamination, or the pole piece winding section is a positive plate section which is not wound with a negative plate lamination;
the FPC board includes the bottom plate, be provided with the coil of making an uproar that falls in the bottom plate, the bottom plate set up in between the battery with loudspeaker, the coil of making an uproar falls with pole piece winding section length is the same, the current direction in the coil of making an uproar falls with the current direction of pole piece winding section is opposite.
Optionally, the noise reduction coil is located on a side of the bottom plate away from the horn.
Optionally, the noise reduction coil is a copper foil line.
Optionally, the FPC board further comprises a limiting plate, wherein the limiting plate is arc-shaped or annular and arranged on the bottom plate, and the limiting plate is sleeved on the periphery of the battery.
Optionally, the FPC board further includes a first connecting member, the first connecting member with the limiting plate is kept away from the one end of bottom plate is connected for connecting the circuit, the first connecting member sets up one side of the battery.
Optionally, the first connecting piece with the limiting plate is integrated into one piece structure, the first connecting piece includes crooked section and horizontal segment, crooked section is connected the horizontal segment with the limiting plate.
Optionally, the FPC board further includes a second connecting member, where the second connecting member includes a connecting plate, a first connecting piece, and two second connecting pieces, and the connecting plate is disposed on a surface of the bottom plate facing away from the battery; one end of the first connecting sheet and one end of the second connecting sheet are respectively connected with the connecting plate, one end of the first connecting sheet, which is far away from the connecting plate, is used for being connected with a microphone, and one end of the second connecting sheet, which is far away from the connecting plate, is connected with the loudspeaker.
Optionally, one end of the first connecting piece and one end of the second connecting piece, which are close to the connecting plate, are respectively bent in a direction away from the bottom plate.
In another aspect, the utility model provides a noise reduction earphone, which comprises a shell and the noise reduction structure, wherein a containing cavity is arranged in the shell, and the noise reduction structure is arranged in the containing cavity.
Optionally, the noise reduction earphone further comprises a magnet, a first accommodating groove and a second accommodating groove are arranged in the accommodating cavity, the magnet is arranged in the first accommodating groove, and the loudspeaker is arranged in the second accommodating groove.
In the utility model, the bottom plate is arranged between the battery and the loudspeaker, the noise reduction coil is arranged in the bottom plate, the current direction in the noise reduction coil is opposite to the current direction of the pole piece winding section by making the length of the noise reduction coil and the length of the pole piece winding section identical, and the magnetic field generated by the pole piece winding section is eliminated, so that the influence of the battery magnetic field on the loudspeaker is eliminated, the problem of earphone bottom noise is solved, and the noise reduction effect is improved.
Drawings
FIG. 1 is a schematic diagram of a noise reduction structure according to an embodiment of the present utility model;
FIG. 2 is an exploded view of a noise reduction structure according to an embodiment of the present utility model;
fig. 3 is a schematic structural view of an FPC board with a noise reduction structure according to an embodiment of the present utility model;
fig. 4 is a schematic cross-sectional view of a noise reduction structure according to an embodiment of the utility model.
Reference numerals in the drawings of the specification are as follows:
1. a battery;
2. an FPC board; 21. a bottom plate; 22. a noise reduction coil; 23. a limiting plate; 24. a first connector; 241. a curved section; 242. a horizontal section; 25. a second connector; 251. a connecting plate; 252. a first connecting piece; 253. a second connecting piece;
3. a horn;
4. a housing; 41. a first accommodating groove; 42. a second accommodating groove;
5. and (3) a magnet.
Detailed Description
The present utility model 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 utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In order to illustrate the technical scheme of the utility model, the following description is made by specific examples.
As shown in fig. 1 to 4, a noise reduction structure according to an embodiment of the present utility model includes a battery 1, an FPC board 2, and a speaker 3, where the battery 1 includes a battery cell (not shown in the drawing), the battery cell includes a positive electrode sheet (not shown in the drawing) and a negative electrode sheet (not shown in the drawing), the periphery of the battery cell has a pole piece winding section (not shown in the drawing), and the pole piece winding section is a negative electrode section not wound with the positive electrode sheet lamination, or the pole piece winding section is a positive electrode section not wound with the negative electrode sheet lamination. The winding segments of the pole pieces are the winding segments which are more than the winding segments of the positive pole piece or the negative pole piece of the battery cell after being wound.
The FPC board 2 includes bottom plate 21, be provided with the coil of making an uproar 22 in the bottom plate 21, bottom plate 21 set up in between battery 1 with loudspeaker 3, the coil of making an uproar 22 with pole piece winding section length is the same, the current direction in the coil of making an uproar 22 with the current direction of pole piece winding section is opposite. The FPC board 2 is a flexible circuit board.
In this embodiment, a bottom plate 21 is disposed between the battery 1 and the speaker 3, and a noise reduction coil 22 is disposed in the bottom plate 21, so that the current direction in the noise reduction coil 22 is opposite to the current direction of the pole piece winding section by making the length of the noise reduction coil 22 identical to the length of the pole piece winding section, and the magnetic field generated by the pole piece winding section is eliminated, thereby eliminating the influence of the magnetic field of the battery 1 on the speaker 3, solving the problem of earphone bottom noise, and improving the noise reduction effect.
In some embodiments of the utility model, as shown in fig. 2, the noise reduction coil 22 is located on a side of the bottom plate 21 away from the horn 3, so as to avoid the influence of the magnetic field radiation of the noise reduction coil 22 on the horn 3.
In some embodiments of the present utility model, the noise reduction coil 22 is a copper foil wire. Specifically, the trace length of the noise reduction coil 22 was tested by cutting out copper foils of different lengths, and the length of the copper foil was recorded when the expected effect was approached. Then, the test is performed by cutting out copper foils with different widths according to the length of the copper foil, and the length and the width of the copper foil are recorded when the expected effect is close.
As shown in fig. 2 and 3, in some embodiments of the present utility model, the FPC board 2 further includes a limiting plate 23, where the limiting plate 23 is disposed on the bottom plate 21 in an arc shape or in a ring shape, and the limiting plate 23 is sleeved on the periphery of the battery 1 to prevent the battery 1 from moving.
As shown in fig. 2 and 3, in some embodiments of the present utility model, the FPC board 2 further includes a first connector 24, wherein the first connector 24 is connected to an end of the limiting plate 23 remote from the bottom plate 21, for connecting a circuit, and the first connector 24 is disposed at one side of the battery 1.
As shown in fig. 2 and 3, in some embodiments of the present utility model, the first connecting member 24 and the limiting plate 23 are integrally formed, and the first connecting member 24 includes a curved section 241 and a horizontal section 242, and the curved section 241 connects the horizontal section 242 and the limiting plate 23.
As shown in fig. 3 and 4, in some embodiments of the present utility model, the FPC board 2 further includes a second connector 25, the second connector 25 includes a connection plate 251, a first connection plate 252, and two second connection plates 253, and the connection plate 251 is disposed on a side of the bottom plate 21 facing away from the battery 1. The first connecting piece 252 and one end of the two second connecting pieces 253 are respectively connected with the connecting plate 251, one end of the first connecting piece 252 away from the connecting plate 251 is used for being connected with a microphone (not shown in the figure), and one end of the second connecting piece 253 away from the connecting plate 251 is connected with the loudspeaker 3.
As shown in fig. 4, in some embodiments of the present utility model, ends of the first connecting piece 252 and the second connecting piece 253, which are close to the connecting piece 251, are respectively bent in a direction away from the bottom plate 21.
On the other hand, the utility model also provides a noise reduction earphone, which comprises a shell 4 and the noise reduction structure in any embodiment, wherein a containing cavity is arranged in the shell 4, and the noise reduction structure is arranged in the containing cavity. Specifically, the microphone is disposed in the accommodating chamber and is located on the side of the horn 3 facing away from the battery 1. The first connecting piece 252 is located on the side of the horn 3 facing away from the connecting piece, and the second connecting piece 253 is welded to the side of the horn 3 facing the battery 1.
As shown in fig. 4, in some embodiments of the present utility model, the noise reduction earphone further includes a magnet 5, a first accommodating groove 41 and a second accommodating groove 42 are disposed in the accommodating cavity, the magnet 5 is disposed in the first accommodating groove 41, and the speaker 3 is disposed in the second accommodating groove 42. The earphone is convenient to store by arranging the magnet 5.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents. Such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model.
Claims (10)
1. The battery comprises a battery core, an FPC board and a loudspeaker, wherein the battery core comprises a positive plate and a negative plate, a pole piece winding section is arranged on the periphery of the battery core, and is a negative plate section which is not wound with the positive plate lamination, or is a positive plate section which is not wound with the negative plate lamination;
the FPC board includes the bottom plate, be provided with the coil of making an uproar that falls in the bottom plate, the bottom plate set up in between the battery with loudspeaker, the coil of making an uproar falls with pole piece winding section length is the same, the current direction in the coil of making an uproar falls with the current direction of pole piece winding section is opposite.
2. The noise reducing structure of claim 1, wherein the noise reducing coil is located on a side of the base plate remote from the horn.
3. The noise reduction structure according to claim 2, wherein the noise reduction coil is a copper foil line.
4. The noise reduction structure according to claim 2, wherein the FPC board further comprises a limiting plate, the limiting plate is arc-shaped or ring-shaped and arranged on the bottom plate, and the limiting plate is sleeved on the periphery of the battery.
5. The noise reduction structure according to claim 4, wherein the FPC board further includes a first connection member connected with an end of the limiting plate away from the bottom plate for connection of a circuit, the first connection member being provided at the battery side.
6. The noise reduction structure of claim 5, wherein the first connecting piece and the limiting plate are integrally formed, the first connecting piece comprises a curved section and a horizontal section, and the curved section connects the horizontal section and the limiting plate.
7. The noise reduction structure according to claim 5, wherein the FPC board further comprises a second connecting member including a connecting plate, a first connecting piece, and two second connecting pieces, the connecting plate being disposed on a side of the bottom plate facing away from the battery; one end of the first connecting sheet and one end of the second connecting sheet are respectively connected with the connecting plate, one end of the first connecting sheet, which is far away from the connecting plate, is used for being connected with a microphone, and one end of the second connecting sheet, which is far away from the connecting plate, is connected with the loudspeaker.
8. The noise reducing structure according to claim 7, wherein one ends of the first connecting piece and the second connecting piece, which are close to the connecting piece, are respectively bent in a direction away from the bottom plate.
9. A noise reduction earphone, characterized by comprising a shell and the noise reduction structure of any one of claims 1-8, wherein a containing cavity is arranged in the shell, and the noise reduction structure is arranged in the containing cavity.
10. The noise reduction earphone of claim 9, further comprising a magnet disposed in the housing cavity, wherein the magnet is disposed in the first housing cavity, and wherein the horn is disposed in the second housing cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320864236.4U CN219740581U (en) | 2023-04-10 | 2023-04-10 | Noise reduction structure and noise reduction earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320864236.4U CN219740581U (en) | 2023-04-10 | 2023-04-10 | Noise reduction structure and noise reduction earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219740581U true CN219740581U (en) | 2023-09-22 |
Family
ID=88031913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320864236.4U Active CN219740581U (en) | 2023-04-10 | 2023-04-10 | Noise reduction structure and noise reduction earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219740581U (en) |
-
2023
- 2023-04-10 CN CN202320864236.4U patent/CN219740581U/en active Active
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