CN215072970U - Moving coil loudspeaker and earphone - Google Patents
Moving coil loudspeaker and earphone Download PDFInfo
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- CN215072970U CN215072970U CN202120506319.7U CN202120506319U CN215072970U CN 215072970 U CN215072970 U CN 215072970U CN 202120506319 U CN202120506319 U CN 202120506319U CN 215072970 U CN215072970 U CN 215072970U
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Abstract
The utility model discloses a moving coil loudspeaker and earphone, the moving coil loudspeaker include: the bracket is provided with an accommodating cavity with two open ends; the magnetic circuit assembly is arranged in the accommodating cavity and extends along the circumferential direction of the bracket, and a magnetic gap is formed in the magnetic circuit assembly; the first vibration assembly comprises a first voice coil and a first vibration film, the first voice coil is arranged in the magnetic gap, and the first vibration film is arranged at one end of the support and connected to the first voice coil; the second vibration assembly comprises a second voice coil and a second vibrating diaphragm, the second voice coil is arranged in the middle of the magnetic circuit assembly, and the second vibrating diaphragm is connected to the second voice coil; the circuit board is arranged at one end, far away from the first vibrating diaphragm, of the support, and the circuit board is electrically connected with the first voice coil and the second voice coil respectively. The utility model discloses in the moving coil loudspeaker, the produced sound of second vibration subassembly can cooperate first vibration subassembly reaches low-frequency vibration's effect, from this, has improved the sound broadcast effect of moving coil loudspeaker, has improved user experience.
Description
Technical Field
The utility model relates to an earphone technical field, in particular to moving coil loudspeaker and earphone.
Background
In recent years, bluetooth wireless headsets and audio technology have been rapidly developed, and various new headsets are on the market. Through the cooperation of various acoustics and algorithms, the earphone can realize the functions of bass enhancement, ANC active noise reduction, virtual 7.1 sound channels and the like.
At present, most Bluetooth wireless headsets are small in size. Therefore, the space of the loudspeaker is compressed, the smaller the size of the loudspeaker is, the poorer the sound reduction effect can be provided, and when the earphone is used in sports and game scenes or plays bass songs, the reality sense of sound is not strong, so that the playing effect of the earphone is poorer.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a moving coil loudspeaker aims at solving the technical problem who how to improve earphone broadcast effect.
In order to achieve the above object, the utility model provides a moving coil loudspeaker includes:
the support is provided with an accommodating cavity with two open ends;
the magnetic circuit assembly is arranged in the accommodating cavity and extends along the circumferential direction of the bracket, and a magnetic gap is formed in the magnetic circuit assembly;
the first vibration assembly comprises a first voice coil and a first vibrating diaphragm, the first voice coil is arranged in the magnetic gap, and the first vibrating diaphragm is arranged at one end of the support and connected to the first voice coil;
the second vibration assembly comprises a second voice coil and a second vibrating diaphragm, the second voice coil is arranged in the middle of the magnetic circuit assembly, and the second vibrating diaphragm is connected to the second voice coil;
the circuit board is arranged on the support and is electrically connected with the first voice coil and the second voice coil respectively.
Optionally, the magnetic circuit assembly includes a magnetic conduction frame and a magnet disposed on an inner peripheral side of the magnetic conduction frame, the magnetic gap is formed between the magnetic conduction frame and the magnet, and the second diaphragm is connected to the magnet.
Optionally, the magnetic conduction frame is arranged in a cover shape and covers the magnet, and the magnet is connected to the end wall of the magnetic conduction frame.
Optionally, the end wall of the magnetic conduction frame is provided with a sound adjusting hole, the circuit board is arranged at one end of the bracket far away from the first vibrating diaphragm, and the circuit board is provided with a through hole communicated with the sound adjusting hole.
Optionally, the moving coil loudspeaker further comprises a tuning net arranged at the tuning hole.
Optionally, the end wall of the magnetic conduction frame is provided with a wire passing hole.
Optionally, the inner peripheral wall of the bracket is convexly provided with a supporting boss, and the magnetic conduction frame is mounted on the supporting boss.
Optionally, the magnet is convexly provided with a connecting rib, and the second diaphragm is connected to the connecting rib.
Optionally, the second diaphragm includes a central membrane and an outer ring body, and the outer ring body extends along the circumferential direction of the central membrane in a mosquito-repellent incense shape.
The utility model also provides an earphone, including a moving coil loudspeaker, the moving coil loudspeaker include: the support is provided with an accommodating cavity with two open ends; the magnetic circuit assembly is arranged in the accommodating cavity and extends along the circumferential direction of the bracket, and a magnetic gap is formed in the magnetic circuit assembly; the first vibration assembly comprises a first voice coil and a first vibrating diaphragm, the first voice coil is arranged in the magnetic gap, and the first vibrating diaphragm is arranged at one end of the support and connected to the first voice coil; the second vibration assembly comprises a second voice coil and a second vibrating diaphragm, the second voice coil is arranged in the middle of the magnetic circuit assembly, and the second vibrating diaphragm is connected to the second voice coil; the circuit board is arranged at one end, far away from the first vibrating diaphragm, of the support, and the circuit board is electrically connected with the first voice coil and the second voice coil respectively.
The utility model discloses moving coil loudspeaker realizes normally broadcasting through magnetic circuit subassembly and first vibration subassembly, set up the second vibration subassembly at magnetic circuit subassembly's middle part again, wherein, but the conduction current is connected with the circuit board electricity to the second voice coil loudspeaker voice coil, the magnetic field that first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil can share magnetic circuit subassembly and produce, consequently, also can vibrate under electromagnetic induction's effect after the second voice coil loudspeaker voice coil circular telegram, thereby drive the vibration of second vibrating diaphragm, because the magnetic field at magnetic circuit subassembly middle part is littleer than magnetic gap, consequently, first vibration range is littleer compared to the vibration range of second vibration subassembly, thereby the second vibration subassembly can cooperate the produced sound of first vibration subassembly to reach the effect of low frequency vibration, therefore, the sound playing effect of moving coil loudspeaker has been improved, user experience has been improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is an exploded view of the structure of an embodiment of the horn of the present invention;
fig. 2 is a schematic cross-sectional view of an embodiment of the speaker of the present invention;
fig. 3 is a schematic cross-sectional view of another embodiment of the speaker of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
20 | |
21 | |
| 30 | First vibrating |
31 | |
32 | |
| 40 | Second vibrating |
41 | |
42 | |
| 50 | |
22 | |
23 | |
| 221 | |
51 | Through |
60 | Tuning |
| 222 | Wire through |
11 | |
231 | Connecting |
| 12 | |
421 | |
422 | Outer ring body |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a moving coil loudspeaker.
In the embodiment of the present invention, as shown in fig. 1 to 3, the moving coil speaker includes: the support 10 is provided with an accommodating cavity with two open ends; the magnetic circuit assembly 20 is arranged in the accommodating cavity and extends along the circumferential direction of the bracket 10, and a magnetic gap 21 is formed in the magnetic circuit assembly 20; a first vibration assembly 30, including a first voice coil 31 and a first diaphragm 32, wherein the first voice coil 31 is disposed in the magnetic gap 21, and the first diaphragm 32 is disposed at one end of the support 10 and connected to the first voice coil 31; a second vibration assembly 40 including a second voice coil 41 and a second diaphragm 42, wherein the second voice coil 41 is disposed in the middle of the magnetic circuit assembly 20, and the second diaphragm 42 is connected to the second voice coil 41; and a circuit board 50 disposed on the support 10, wherein the circuit board 50 is electrically connected to the first voice coil 31 and the second voice coil 41, respectively.
The bracket 10 is cylindrically configured to provide an installation space. The magnetic circuit component 20 extends along the inner peripheral wall of the bracket 10, the specific composition structure of the magnetic circuit component 20 is not limited, and only the magnetic gap 21 is required to be formed, and the magnetic gap 21 is arranged in an annular shape to generate a magnetic field. The first diaphragm 32 is disposed at an open end of the support 10, and a peripheral edge of the first diaphragm 32 can be connected to an end of the support 10 to support the first voice coil 31. The first voice coil 31 is suspended in the magnetic gap 21 by the first diaphragm 32 and is electrically connected to the circuit board 50 by a wire. The circuit board 50 is configured to provide an audio current to the first voice coil 31, and when the current passes through the first voice coil 31, because the first voice coil 31 is located in the magnetic field, the first voice coil 31 vibrates under the action of electromagnetic induction, and further drives the first diaphragm 32 to vibrate together, so as to push ambient air to vibrate, and convert the current frequency into sound; that is, the first vibration assembly 30 is used to realize the normal broadcasting function of the speaker.
The second diaphragm 42 may be disposed between the first diaphragm 32 and the magnetic circuit assembly 20, and the second diaphragm 42 may be connected to the magnetic circuit assembly 20, or may be connected to the support 10, where the second diaphragm 42 is not limited herein, and only needs to support the second voice coil 41, so that the second voice coil 41 is suspended in the middle of the magnetic circuit assembly 20, and the middle of the magnetic circuit assembly 20 also has a magnetic field. Second voice coil 41 is connected with circuit board 50 electricity through the wire, and circuit board 50 is used for providing audio current for second voice coil 41, and when electric current passes through second voice coil 41, because second voice coil 41 is arranged in magnetic field, consequently second voice coil 41 can vibrate under electromagnetic induction's effect, and then drives second vibrating diaphragm 42 and vibrate together to promote the ambient air vibration, convert the current frequency into sound. Because the magnetic field intensity in the middle of the magnetic circuit assembly 20 is less than that of the magnetic gap 21, the vibration amplitudes of the second voice coil 41 and the second diaphragm 42 are less than those of the first voice coil 31 and the first diaphragm 32, so that the second diaphragm 42 pushes air to vibrate to generate smaller audio; that is, the second vibration component 40 is used to output bass and vibration effects in the sound source, so as to improve the sound quality of the speaker and improve the user experience.
The utility model discloses moving coil loudspeaker realizes normally broadcasting through magnetic circuit component 20 and first vibration subassembly 30, set up second vibration subassembly 40 at magnetic circuit component 20's middle part again, wherein, but second voice coil 41 is connected the conduction current with circuit board 50 electricity, but first voice coil 31 and second voice coil 41 sharing magnetic circuit component 20 produced magnetic field, consequently also can vibrate under electromagnetic induction's effect after second voice coil 41 circular telegram, thereby drive second vibrating diaphragm 42 vibration, because magnetic circuit component 20 middle part magnetic field is littleer than magnetic gap 21, consequently first vibration range is compared to second vibration subassembly 40's vibration range, thereby second vibration subassembly 40 can cooperate the produced sound of first vibration subassembly 30 to reach low-frequency vibration's effect, therefore, moving coil loudspeaker's sound broadcast effect has been improved, user experience has been improved.
As shown in fig. 1 to 3, the magnetic circuit assembly 20 includes a magnetic conduction frame 22 and a magnet 23 disposed on an inner peripheral side of the magnetic conduction frame 22, the magnetic gap 21 is formed between the magnetic conduction frame 22 and the magnet 23, and the second diaphragm 42 is connected to the magnet 23. The magnetic conduction frame 22 is made of a magnet and can generate a magnetic field by matching with the magnet 23. The magnet 23 may include a magnet and a washer connected in an axial direction, and the washer is used for concentrating magnetism to concentrate magnetic induction lines in the magnetic gap 21, so as to improve the magnetic field strength of the magnetic gap 21. The second diaphragm 42 is connected to the magnet 23, so that the installation manner of the second vibration assembly 40 in the accommodating cavity can be simplified.
As shown in fig. 1 to 3, the magnetic conduction frame 22 is disposed in a cover shape and covers the magnet 23, and the magnet 23 is connected to an end wall of the magnetic conduction frame 22. The magnetic conduction frame 22 is arranged in a cover shape and can provide a connection base for the magnet 23, so that the magnetic conduction frame 22 and the magnet 23 are firstly connected into a whole, and the magnetic circuit assembly 20 is convenient to mount in the accommodating cavity. The end wall of the magnetic guide frame is provided with a caulking groove, and the magnet 23 is matched with the caulking groove so as to improve the connection strength of the magnet 23 and the magnetic guide frame. The circuit board 50 may also be connected to the end wall of the magnetic yoke to make the overall structure of the coil horn more stable and compact.
As shown in fig. 1 to fig. 3, the end wall of the magnetic conduction frame 22 is provided with a tuning hole 221, the circuit board 50 is disposed at one end of the bracket 10 far away from the first diaphragm 32, and the circuit board 50 is provided with a through hole 51 communicated with the tuning hole 221. When in use, the moving coil loudspeaker is arranged in a cavity, and the moving coil loudspeaker can separate the cavity. The sound adjusting hole 221 and the through hole 51 are used for balancing the sound pressure of the cavities on the two sides of the magnetic conduction frame 22, so that the influence of the air pressure on the tone quality of the horn is reduced, and the playing effect of the horn is improved. Specifically, as shown in fig. 2 and fig. 3, the moving coil loudspeaker further includes a tuning net 60 disposed at the tuning hole 221, and the tuning net 60 can change the ventilation amount of the tuning hole 221, so as to adjust the sound pressure on both sides of the magnetic conduction frame 22 to a more accurate balance index, thereby further improving the tuning effect. In practical application, as shown in fig. 1 and 3, a wire passing hole 222 is formed in an end wall of the magnetic conduction frame 22 for a wire connecting the second voice coil 41 and the circuit board 50 to pass through, a pad is convexly disposed on the circuit board 50, and the wire passes through the wire passing hole 222 and then is connected to the pad through the through hole 51, so as to electrically connect the circuit board 50 and the second voice coil 41. The wire passing hole 222 can play a role in bundling and protecting the wires so as to avoid messy internal lines of the moving coil loudspeaker and ensure stable line connection.
In one embodiment, as shown in fig. 1, the second diaphragm 42 includes a central membrane 421 and an outer ring 422, and the outer ring 422 extends along the circumference of the central membrane 421 in a mosquito coil shape. The central diaphragm 421 is used to support and connect the second voice coil 41, and is configured to be a solid sheet shape, which may have sufficient structural strength to support stable vibration of the second voice coil 41 and the second diaphragm 42; and outer ring body 422 can reduce the whole weight of second vibrating diaphragm 42, improves elasticity, because the magnetic field intensity that magnetic circuit assembly 20's center department passed second voice coil 41 is less, and the vibration range of second voice coil 41 is less promptly, consequently outer ring body 422 that is the mosquito-repellent incense form is axial vibration under the influence of second voice coil 41 more easily to improve the vibration sensitivity of second vibrating diaphragm 40, thereby further improve the low-tone frequency vibration effect of loudspeaker.
As shown in fig. 2 and 3, a support boss 11 is convexly provided on an inner circumferential wall of the bracket 10, and the flux guide frame 22 is mounted on the support boss 11. The supporting boss 11 is used for supporting the magnetic conduction frame 22, so that the magnetic conduction frame 22 is more stably installed in the accommodating cavity. The supporting boss 11 extends along the circumferential direction of the bracket 10 to increase the supporting area of the flux guide frame 22 and improve the supporting strength. As shown in fig. 2 and 3, the magnet 23 is convexly provided with a connecting rib 231, and the second diaphragm 42 is connected to the connecting rib 231. The connecting rib 231 can reduce the connecting area between the magnet 23 and the second diaphragm 42, thereby reducing the influence on the vibration amplitude of the second diaphragm 42 and improving the bass frequency and vibration effect of the moving-coil loudspeaker. As shown in fig. 1, the bracket 10 is provided with a wire passing groove 12 communicated with the accommodating cavity. The wire through groove 12 is used for passing through a wire connecting the first voice coil 31 and the circuit board 50. The lead wire passes through the wire passing groove 12 and the bracket 10 and then extends to the circuit board 50, so as to electrically connect the first voice coil 31 and the circuit board 50. In combination with the above-mentioned embodiment of the wire passing hole 222, the wire passing groove 12 and the wire passing hole 222 can effectively separate two kinds of wires to avoid mutual interference, thereby improving the operation stability of the moving coil loudspeaker.
The utility model discloses still provide an earphone, this earphone includes a moving coil loudspeaker, and the concrete structure of this moving coil loudspeaker refers to above-mentioned embodiment, because this moving coil loudspeaker has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. A moving coil loudspeaker, comprising:
the support is provided with an accommodating cavity with two open ends;
the magnetic circuit assembly is arranged in the accommodating cavity and extends along the circumferential direction of the bracket, and a magnetic gap is formed in the magnetic circuit assembly;
the first vibration assembly comprises a first voice coil and a first vibrating diaphragm, the first voice coil is arranged in the magnetic gap, and the first vibrating diaphragm is arranged at one end of the support and connected to the first voice coil;
the second vibration assembly comprises a second voice coil and a second vibrating diaphragm, the second voice coil is arranged in the middle of the magnetic circuit assembly, and the second vibrating diaphragm is connected to the second voice coil;
the circuit board is arranged on the support and is electrically connected with the first voice coil and the second voice coil respectively.
2. The moving-coil loudspeaker according to claim 1, wherein the magnetic circuit assembly includes a magnetic conductive frame and a magnet disposed on an inner peripheral side of the magnetic conductive frame, the magnetic gap is formed between the magnetic conductive frame and the magnet, and the second diaphragm is connected to the magnet.
3. The moving coil loudspeaker of claim 2 wherein said magnetic frame is disposed in a hood shape and covers said magnet, said magnet being attached to an end wall of said magnetic frame.
4. The moving coil loudspeaker of claim 3 wherein the end wall of the magnetic frame is provided with a tuning hole, the circuit board is disposed at an end of the bracket away from the first diaphragm, and the circuit board is provided with a through hole communicating with the tuning hole.
5. The moving coil loudspeaker of claim 4 further comprising a tuning mesh at said tuning hole.
6. The moving coil loudspeaker of claim 3 wherein the end wall of the magnetic conduction frame is provided with a wire passing hole.
7. The moving coil loudspeaker according to claim 2, wherein the inner peripheral wall of the bracket is provided with a support boss, and the magnetic conduction frame is mounted on the support boss.
8. The moving coil loudspeaker of claim 2 wherein the magnet is provided with ribs and the second diaphragm is attached to the ribs.
9. The moving-coil loudspeaker according to any one of claims 1 to 8, wherein the second diaphragm includes a central diaphragm and an outer ring body extending in a mosquito-repellent coil shape along a circumferential direction of the central diaphragm.
10. An earphone, characterized by comprising a moving coil speaker as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120506319.7U CN215072970U (en) | 2021-03-10 | 2021-03-10 | Moving coil loudspeaker and earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120506319.7U CN215072970U (en) | 2021-03-10 | 2021-03-10 | Moving coil loudspeaker and earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215072970U true CN215072970U (en) | 2021-12-07 |
Family
ID=79260363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120506319.7U Active CN215072970U (en) | 2021-03-10 | 2021-03-10 | Moving coil loudspeaker and earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215072970U (en) |
-
2021
- 2021-03-10 CN CN202120506319.7U patent/CN215072970U/en active Active
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