CN215734773U

CN215734773U - Loudspeaker structure and earphone

Info

Publication number: CN215734773U
Application number: CN202121679765.4U
Authority: CN
Inventors: 鄢宏兵; 孔德华
Original assignee: Luxshare Electronic Technology Kunshan Ltd
Current assignee: Luxshare Electronic Technology Kunshan Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2022-02-01
Anticipated expiration: 2031-07-22
Also published as: TWM624432U

Abstract

The utility model relates to a loudspeaker structure and an earphone, wherein the loudspeaker structure comprises a shell, a first sound generating unit arranged in a first groove of the shell, and a second sound generating unit arranged in a second groove of the shell, the first sound generating unit comprises a metal vibrating reed, the second sound generating unit is set to be controlled to output sound, the metal vibrating reed is set to be controlled to vibrate to generate low-frequency-band sound, and therefore the sound output quality of the second sound generating unit is adjusted. According to the utility model, the low-frequency response of output can be effectively improved through the vibration of the metal vibrating reed, and the vibration body feeling can be improved.

Description

Loudspeaker structure and earphone

Technical Field

The utility model relates to the field of electroacoustic conversion, in particular to a loudspeaker structure and an earphone.

Background

The low-frequency response depth of the current in-ear earphone is insufficient, and the vibration effect is not obvious or has no vibration effect when the low-frequency output is carried out.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a speaker structure and an earphone, which can effectively improve the output low frequency response and improve the vibration feeling.

In a first aspect, a first embodiment of the present invention provides a speaker structure, including: the shell is internally provided with a first groove and a second groove; a first sound emitting unit disposed in the first groove of the case, the first sound emitting unit including a metal vibrating reed; and a second sound generating unit disposed in the second groove of the housing, the second sound generating unit being configured to be controlled to output sound; wherein the first sound generating unit is configured to generate low-frequency band sound by controlled vibration, thereby adjusting the sound output quality of the second sound generating unit.

In some embodiments, the first sound emitting unit further comprises: the first basin frame is arranged in the first groove of the shell; a first magnetic circuit system disposed within the first basin stand, the first magnetic circuit system configured to be controlled to generate a magnetic field; and a first voice coil disposed within the first frame, configured to be controlled to vibrate in the magnetic field relative to the first magnetic circuit system; the metal vibrating reed is connected between the first basin frame and the first magnetic circuit system, the first magnetic circuit system is controlled to vibrate and drives the metal vibrating reed to vibrate, or the metal vibrating reed is connected between the first basin frame and the first voice coil, and the first voice coil is controlled to vibrate and drives the metal vibrating reed to vibrate.

In some embodiments, the first sound emitting unit further comprises: and the first elastic wave is connected between the first basin frame and the first voice coil or between the first basin frame and the first magnetic circuit system.

In some embodiments, the metal vibration plate includes a center portion and a plurality of cantilever portions extending outward from an edge of the center portion, the plurality of cantilever portions being disposed at intervals around a circumference of the center portion, and the metal vibration plate is connected to the first frame through the cantilever portions and to the first voice coil or the first magnetic circuit system through the center portion.

In some embodiments, the speaker structure further comprises: the circuit board assembly is arranged in the shell, is electrically connected with the first magnetic circuit system and is arranged to control the first magnetic circuit system to generate the magnetic field, and is also electrically connected with the second sound generating unit and is arranged to control the second sound generating unit to output sound; and the battery is arranged in the shell and is electrically connected with the circuit board assembly.

In some embodiments, the housing is hollow, the first groove and the second groove are formed by protruding from an inner surface of the housing, and the first groove and the second groove are arranged adjacently.

In some embodiments, the second sounding unit includes a second frame, the second frame is disposed in the second groove of the housing, the second frame includes a recessed portion recessed inward from an outer surface thereof, the battery is located in the housing, one side of the battery abuts against the recessed portion, and the other side of the battery abuts against an inner surface of the housing.

In a second aspect, a second embodiment of the utility model provides a headset comprising a speaker structure as claimed in any one of the first aspect.

In some embodiments, the housing includes a front cover and a rear cover, the front cover and the rear cover are detachably connected, the first groove and the second groove are both located in the front cover, the front cover is further provided with at least one sound outlet, and the sound outlet communicates the second groove to the outside of the housing.

In some embodiments, the housing further comprises: go into ear, protruding locating the surface of casing just is located go out on the sound mouth, it has the through-hole to go into ear, the through-hole intercommunication go out the sound mouth extremely outside the earphone.

According to the embodiment of the utility model, the low-frequency output of the second sounding unit can be reinforced through the vibration of the metal vibrating reed of the first sounding unit, the low-frequency response of the output is effectively improved, and the vibration body feeling can be improved.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 is an exploded view of a speaker structure according to a first embodiment of the present invention;

fig. 2 is a half sectional view showing a speaker structure according to a first embodiment of the present invention;

fig. 3 is an exploded view of a headset according to a second embodiment of the utility model;

fig. 4 is a half-sectional view of a headset according to a second embodiment of the present invention.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Meanwhile, it should be understood that, in the following description, a "circuit" refers to a conductive loop constituted by at least one element or sub-circuit through electrical or electromagnetic connection. When an element or circuit is referred to as being "connected to" another element or element/circuit is referred to as being "connected between" two nodes, it may be directly coupled or connected to the other element or intervening elements may be present, and the connection between the elements may be physical, logical, or a combination thereof. In contrast, when an element is referred to as being "directly coupled" or "directly connected" to another element, it is intended that there are no intervening elements present.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Fig. 1-4 are schematic views of a speaker configuration and headset of the present invention. The speaker structure of the first embodiment of the present invention can be applied to the earphone of the second embodiment, and therefore, the earphone structure shown in fig. 4 includes the speaker structure, and the housing 3 is hidden in fig. 1 and 2 in order to show the speaker structure more clearly.

As shown in fig. 1-2, the speaker structure includes a housing 3 (as mentioned above, the housing 3 refers to fig. 4), a first sound generating unit 1 and a second sound generating unit 2. The first sound emitting unit 1 includes a metal vibration piece 14, the housing 3 has a first recess 311 and a second recess 312 therein, the first sound emitting unit 1 is disposed in the first recess 311, and the second sound emitting unit 2 is disposed in the second recess 312. The second sound emitting unit 2 is configured to output sound under control, the metal vibration piece 14 of the first sound emitting unit 1 is configured to emit low-frequency band sound under control vibration, and the first sound emitting unit 1 is used for further adjusting the sound output quality of the second sound emitting unit 2.

The second sound generating unit 2 can output high frequency sound, mid frequency sound, and low frequency sound, and when the second sound generating unit 2 outputs low frequency sound, the first sound generating unit 1 can be controlled to generate sound synchronously by a crossover circuit (not shown) of the speaker, and further, the metal vibrating reed 14 of the first sound generating unit 1 reinforces the low frequency output quality of the speaker. In addition, since the metal vibrating reed 14 has a certain weight, the vibration feeling of the speaker structure can be improved when the metal vibrating reed vibrates, and the user experience feeling can be improved.

As shown in fig. 1 and 2, in some embodiments, the first sound generating unit 1 may further include a first frame 11, a first magnetic circuit 12, and a first voice coil 13. The first frame 11 is disposed in the first recess 311 of the housing 3. The first magnetic circuit 12 is arranged in the first basin frame 11, and the first magnetic circuit 12 is arranged to be controlled to generate a magnetic field. A first voice coil 13 is arranged within the first frame 11, the first voice coil 13 being arranged to be controlled to vibrate in a magnetic field relative to the first magnetic circuit system 12.

In an alternative implementation, the metal vibrating reed 14 is connected between the first frame 11 and the first magnetic circuit system 12, and the first magnetic circuit system 12 is controlled to vibrate to drive the metal vibrating reed 14 to vibrate. In another alternative implementation, the metal vibrating reed 14 is connected between the first frame 11 and the first voice coil 13, and the first voice coil 13 is controlled to vibrate to drive the metal vibrating reed 14 to vibrate. In the above, since the vibrations of the first magnetic circuit system 12 and the first voice coil 13 are opposite to each other, the vibration of the metal vibrating reed 14 can be realized in both of the two ways.

As shown in fig. 1 and 2, in some embodiments, the first sound emitting unit 1 may further include a first elastic wave 15. When the metal vibrating reed 14 is connected between the first frame 11 and the first magnetic circuit system 12, the first damper 15 is connected between the first frame 11 and the first voice coil 13; when the metal vibrating piece 14 is connected between the first frame 11 and the first voice coil 13, the first damper 15 is connected between the first frame 11 and the first magnetic circuit system 12. First bullet ripples 15 is centering branch piece, and when first voice coil 13 is controlled to vibrate, first bullet ripples 15 also follows the vibration, and then can adjust the sound production frequency and the sound output quality of first sound generating unit 1, can also keep first voice coil 13 to be located the correct position of first magnetic circuit 12 in the magnetic gap, can also guarantee that first voice coil 13 is along axial relative vibration with first magnetic circuit 12 when atress.

Further, the metal vibrating reed 14 includes a center portion 141 and a plurality of cantilever portions 142 extending outward from an edge of the center portion 141, the plurality of cantilever portions 142 are disposed at intervals around a circumferential direction of the center portion 141, and the metal vibrating reed 14 is connected to the first frame 11 through the cantilever portions 142 and connected to the first voice coil 13 or the first magnetic circuit system 12 through the center portion 141. When the metal vibration plate 14 vibrates, the first voice coil 13 or the first magnetic circuit system 12 drives the center portion 141 and further drives the cantilever portion 142 to vibrate, and since the metal vibration plate 14 is made of a metal material having a weight, a low frequency output can be provided to reinforce a response depth of the speaker in a low frequency band.

In this embodiment, the first frame 11 is a frustum body, and the middle of the frustum body is through. First bullet ripples 15 is the ring shape, sets up between first voice coil 13 and first basin frame 11 and connects the two, and first bullet ripples 15 connects first basin frame 11 through its annular periphery, connects first voice coil 13 through interior week. The center portion 141 of the metal vibrating reed 14 is circular, and the metal vibrating reed 14 is connected to the first magnetic circuit system 12 through the center portion 141. The cantilever portion 142 of the metal vibrating reed 14 is in a sheet shape, in this embodiment, there are 7 cantilever portions 142, in other embodiments, the number is not limited, one end of the cantilever portion 142 is connected to the central portion 141, the other end is connected to the frame 11, and the cantilever portion 142 is overhead between the first frame 11 and the first magnetic circuit system 12, so that the sound can be generated by vibration. In addition, the structures of the first frame 11, the first magnetic circuit 12, the first voice coil 13, and the first damper 15 are all the structures of the frame, the magnetic circuit, the voice coil, and the damper that are common in the structure of a speaker, and the principles thereof will be apparent to those skilled in the art, for example, based on the electromagnetic induction principle, the relative vibration between the voice coil and the magnetic circuit is realized by passing an alternating current to the voice coil, and the like, and this embodiment is not described in detail herein.

Note that, in fig. 2, the cantilever portion 142 and the first damper 15 are curved, which is not intended to limit the present embodiment. Since it is easy to understand that the cantilever portion 142 and the first damper 15 are vibratable, they may be in a straight state or a bent state during vibration.

As shown in fig. 1 and 2, in some embodiments, the speaker structure may further include a circuit board assembly 4 and a battery 5. The circuit board assembly 4 is disposed in the housing 3, electrically connected to the first magnetic circuit system 12, and configured to control the first magnetic circuit system 12 to generate a magnetic field, and the circuit board assembly 4 is further electrically connected to the second sound generating unit 2, and configured to control the second sound generating unit 2 to output sound. The battery 5 is disposed in the housing 3 and electrically connected to the battery panel assembly 4.

A bluetooth signal transceiver module (not shown) may be provided on the circuit board assembly 4 so that the speaker structure may operate based on bluetooth signals. This makes the speaker more convenient and flexible to use.

As shown in fig. 4, in some embodiments, the housing 3 is hollow inside, the first recess 311 and the second recess 312 are respectively formed by protruding from the inner surface of the housing 3, and the first recess 311 and the second recess 312 are adjacently arranged. Therefore, the first sound generating unit 1 and the second sound generating unit 2 are also adjacently arranged, sound outputs of the first sound generating unit 1 and the second sound generating unit 2 can be better mutually reinforced, the first sound generating unit 1 is located in the sound cavity formed by the first groove 311, the second sound generating unit 2 is located in the sound cavity formed by the second groove 312, and mutual interference is reduced when the sound outputs of the first sound generating unit and the second sound generating unit are mutually reinforced.

The first sound generating unit 1 may be at least partially disposed in the first recess 311, and the second sound generating unit 2 may be at least partially disposed in the second recess 312, so that the first sound generating unit 1 and the second sound generating unit 2 are also disposed in two separated sound cavities (referred to as the first recess 311 and the second recess 312), and mutual interference can be reduced when outputting sound.

As shown in fig. 4, in some embodiments, the second sound generating unit 2 may be a moving coil unit, which may include a second frame 21, the second frame 21 is disposed in a second groove 312 of the housing 3, the second frame 21 includes a concave portion 211 that is concave 211 from an outer surface thereof, the battery is located in the housing 3, one side of the battery abuts against the concave portion 211, and the other side of the battery 5 abuts against an inner surface of the housing 3. From this, the inner space of casing 3 sets up more high-efficiently, is favorable to electronic product's miniaturized demand.

In addition, the second sound generating unit 2 may also include a second magnetic circuit system (not shown), a second voice coil (not shown), a second elastic wave (not shown), or other structures commonly found in a moving coil unit, which will be easily understood by those skilled in the art, and therefore, this embodiment is not described in detail herein. Of course, in some other alternative implementations, the second sound generating unit 2 may also be another sound generating unit, such as a moving iron unit, and the like, which may all implement sound generation of the second sound generating unit 2.

As shown in fig. 4, in some embodiments, the first sound emitting unit 1 is sandwiched between the battery 5 and the first recess 311, which makes the space inside the housing 3 more efficient to use and the balance weight more concentrated, which is beneficial to the miniaturization requirement of the electronic product, and also makes the battery 5 can assist in fixing the first sound emitting unit 1 and the second sound emitting unit 2 besides providing power.

Fig. 3 and 4 are schematic views of a headset according to a second embodiment of the utility model. As shown in fig. 3 and 4, the earphone may include the speaker structure as described in the first embodiment, and the housing 3 may further include a front cover 31 and a rear cover 32, the front cover 31 and the rear cover 32 are detachably connected, the first recess 311 and the second recess 312 are both located in the front cover 31, the front cover 31 is further provided with at least one sound outlet 313, and the sound outlet 313 communicates the second recess 312 to the outside of the housing 3. Thereby, the sound generated by the second sound emitting unit 2 in the second groove 312 may be transmitted to the outside of the earphone through the sound outlet 313, and the sound generated by the first sound emitting unit 1 in the first groove 311 may be transmitted to the first groove 311 through the rear cavity of the earphone (i.e., the inner hollow portion of the case 3) and to the outside of the earphone through the sound outlet 313. The sound outlet 313 may be one, or may be plural, and this embodiment is not limited to this.

As shown in fig. 3 and 4, in some embodiments, the casing 3 further includes an ear-in portion 33, the ear-in portion 33 is protruded from an outer surface of the casing 3 and located on the sound outlet 313, the ear-in portion 33 has a through hole 331, and the through hole 331 communicates the sound outlet 313 to the outside of the earphone. The ear inlet portion 33 is for the user to insert at least a part of the ear to wear the headset when the user uses the headset, and the through hole 331 is for transmitting the sound emitted from the sound outlet 313 to the ear 331. In addition, an earplug can be further disposed on the ear insertion portion 33, and the description of this embodiment is omitted here.

As shown in fig. 3 and 4, in some embodiments, the housing 3 may further include a receiving portion 34, the receiving portion 34 is protruded from an outer surface of the rear cover 32 of the housing 3 and is located at a side opposite to the ear portion 33, the circuit board assembly 4 may be located in the receiving portion 34, and the circuit board assembly 4 is further electrically connected to the first sound emitting unit 1 and the second sound emitting unit 2 through a wire (not shown) located inside the housing 3. In particular, the circuit board assembly 4 may include a bluetooth transceiver module (not shown), which may be a bluetooth headset.

The loudspeaker structure and the earphone of the embodiment of the utility model can complement the low-frequency output of the second sound generating unit by vibrating and sounding the metal vibrating plate of the first sound generating unit while outputting the sound through the second sound generating unit, thereby effectively improving the low-frequency response and improving the vibration sense.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A speaker structure, characterized in that the speaker structure comprises:

the device comprises a shell (3), wherein a first groove (311) and a second groove (312) are formed in the shell (3);

a first sound emitting unit (1) disposed in the first recess (311) of the case (3), the first sound emitting unit (1) including a metal vibrating piece (14); and

a second sound emitting unit (2) arranged in the second recess (312) of the housing (3), the second sound emitting unit (2) being arranged to be controlled to output sound;

wherein the first sound emitting unit (1) is configured to emit low frequency band sound by controlled vibration, thereby adjusting the sound output quality of the second sound emitting unit (2).

2. A loudspeaker structure according to claim 1, characterized in that the first sound-emitting unit (1) further comprises:

a first frame (11) disposed in the first recess (311) of the housing (3);

a first magnetic circuit system (12) disposed within the first basket (11), the first magnetic circuit system (12) configured to be controlled to generate a magnetic field; and

a first voice coil (13) disposed within the first frame (11) and configured to be controlled to vibrate in the magnetic field relative to the first magnetic circuit system (12);

the metal vibrating reed (14) is connected between the first basin frame (11) and the first magnetic circuit system (12), the first magnetic circuit system (12) is controlled to vibrate to drive the metal vibrating reed (14) to vibrate, or the metal vibrating reed (14) is connected between the first basin frame (11) and the first voice coil (13), and the first voice coil (13) is controlled to vibrate to drive the metal vibrating reed (14) to vibrate.

3. A loudspeaker structure according to claim 2, characterized in that the first sound-emitting unit (1) further comprises:

a first damper (15) connected between the first frame (11) and the first voice coil (13) or between the first frame (11) and the first magnetic circuit system (12).

4. The speaker structure according to claim 2 or 3, wherein the metal vibration plate (14) includes a center portion (141) and a plurality of cantilever portions (142) extending outward from an edge of the center portion (141), the plurality of cantilever portions (142) being provided at intervals around a circumference of the center portion (141), the metal vibration plate (14) being connected to the first frame (11) through the cantilever portions (142) and to the first voice coil (13) or to the first magnetic circuit system (12) through the center portion (141).

5. The speaker structure of claim 4, further comprising:

the circuit board assembly (4) is arranged in the shell (3), is electrically connected with the first magnetic circuit system (12) and is arranged to control the first magnetic circuit system (12) to generate the magnetic field, and the circuit board assembly (4) is also electrically connected with the second sound generating unit (2) and is arranged to control the second sound generating unit (2) to output sound; and

a battery (5) disposed within the housing (3) and electrically connected with the circuit board assembly (4).

6. A speaker structure according to claim 5, wherein the housing (3) is hollow inside, the first recess (311) and the second recess (312) are formed by protruding from the inner surface of the housing (3), respectively, and the first recess (311) and the second recess (312) are arranged adjacently.

7. A speaker construction according to claim 5, wherein the second sound generating unit (2) comprises a second frame (21), the second frame (21) being arranged in the second recess (312) of the housing (3), the second frame (21) comprising a recess (211) recessed inwardly from an outer surface thereof, the battery (5) being located in the housing (3) with one side abutting in the recess (211) and the other side of the battery (5) abutting in an inner surface of the housing (3).

8. A headset, characterized in that the headset comprises a loudspeaker construction according to any of claims 1-7.

9. The earphone according to claim 8, wherein the casing (3) comprises a front cover (31) and a rear cover (32), the front cover (31) and the rear cover (32) are detachably connected, the first groove (311) and the second groove (312) are both located on the front cover (31), at least one sound outlet (313) is further arranged on the front cover (31), and the sound outlet (313) communicates the second groove (312) to the outside of the casing (3).

10. The headset of claim 9, wherein the housing (3) further comprises:

go into ear (33), protruding locate the surface of casing (3) just is located go out on sound port (313), go into ear (33) and have through-hole (331), through-hole (331) intercommunication sound port (313) extremely outside the earphone.