CN114157967A - Micro loudspeaker - Google Patents
Micro loudspeaker Download PDFInfo
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- CN114157967A CN114157967A CN202111578085.8A CN202111578085A CN114157967A CN 114157967 A CN114157967 A CN 114157967A CN 202111578085 A CN202111578085 A CN 202111578085A CN 114157967 A CN114157967 A CN 114157967A
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- diaphragm
- cavity
- diaphragm assembly
- assembly
- micro
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- 238000013022 venting Methods 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims description 15
- 230000001070 adhesive effect Effects 0.000 claims description 15
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000035945 sensitivity Effects 0.000 abstract description 16
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/11—Aspects relating to vents, e.g. shape, orientation, acoustic properties in ear tips of hearing devices to prevent occlusion
Abstract
The application discloses miniature speaker, it includes casing subassembly, first vibrating diaphragm subassembly and second vibrating diaphragm subassembly. The shell component is provided with a sound outlet, a front cavity and a rear cavity, wherein the sound outlet is communicated with the front cavity. The first diaphragm assembly is arranged between the front cavity and the rear cavity. The second diaphragm assembly is arranged between the front cavity and the rear cavity, wherein the second diaphragm assembly is located on one side, away from the sound outlet, of the first diaphragm assembly, the second diaphragm assembly is provided with a venting through hole, and the venting through hole is configured to be communicated with the front cavity and the rear cavity. This application is provided with the second vibrating diaphragm subassembly through the one side at first vibrating diaphragm subassembly to improve the relatively poor problem of intermediate frequency sensitivity. Meanwhile, the second vibrating diaphragm assembly is provided with an air leakage through hole, so that the pressure of the cavity is maintained on the premise of not influencing the space of the cavity. Therefore, the micro loudspeaker with the medium-frequency and low-frequency sensitivity is realized.
Description
Technical Field
The application relates to the technical field of loudspeakers, in particular to a miniature loudspeaker.
Background
The micro speaker is widely used in various portable electronic products because of its small size. Micro-speakers are limited in spatial size compared to bulky speakers, making them often challenging in terms of acoustic performance. For example, the mid-frequency of a micro-speaker produces a sharp peak due to the resonance of the front cavity. To smooth the sensitivity of the mid-frequency, additional acoustic resonant cavities are typically partitioned in the front cavity. However, the additional acoustic resonant cavity results in a volume reduction of the entire cavity. For a loudspeaker, the reduction of the volume of the chamber makes the chamber more rigid, resulting in a reduced low frequency sensitivity.
On the other hand, in order to control the pressure in the chamber, a venting hole is also generally provided in the speaker so that the chamber can slowly regulate the air pressure. However, for a micro-speaker with a small spatial dimension, the air-bleed hole is necessarily disposed close to the front cavity, which leads to a reduction in the volume of the whole cavity and thus aggravates the low-frequency sensitivity degradation.
Therefore, how to provide a micro-speaker with smooth mid-frequency sensitivity and excellent low-frequency sensitivity is an urgent issue to be solved in the field.
Disclosure of Invention
The embodiment of the application provides a micro loudspeaker to solve the problem that the current micro loudspeaker is difficult to give consideration to medium-frequency and low-frequency sensitivity.
In order to solve the technical problem, the present application is implemented as follows:
a micro-speaker is provided, which includes a housing assembly, a first diaphragm assembly and a second diaphragm assembly. The shell component is provided with a sound outlet, a front cavity and a rear cavity, wherein the sound outlet is communicated with the front cavity. The first diaphragm assembly is arranged between the front cavity and the rear cavity. The second diaphragm assembly is arranged between the front cavity and the rear cavity, wherein the second diaphragm assembly is located on one side, away from the sound outlet, of the first diaphragm assembly, the second diaphragm assembly is provided with a venting through hole, and the venting through hole is configured to be communicated with the front cavity and the rear cavity.
In some embodiments, the first diaphragm assembly includes a first corrugated rim, a first diaphragm, and a first driving member. The first diaphragm is arranged in the first folding ring. The first driving member is disposed on one side of the first diaphragm and located in the rear cavity, and is configured to drive the first diaphragm to vibrate.
In some embodiments, the second diaphragm assembly further includes a second corrugated rim, a second diaphragm, and a second driving member. The second diaphragm is arranged in the second folded ring, and the air leakage through hole penetrates through the second diaphragm. The second driving member is disposed on one side of the second diaphragm and configured to drive the second diaphragm to vibrate.
In some embodiments, the second diaphragm assembly further comprises an acoustic mesh cloth, and the acoustic mesh cloth is disposed on the second diaphragm and covers the air-leakage through hole.
In some embodiments, the second flange has a step portion, the second diaphragm assembly further includes an annular adhesive disposed on the step portion, the annular adhesive is configured to adhere the second flange and the acoustic mesh on one side thereof, and the annular adhesive is configured to adhere the second diaphragm on the other side thereof.
In some embodiments, the first diaphragm assembly is rectangular in shape and the second diaphragm assembly is circular in shape.
In some embodiments, the horizontal area of the first diaphragm assembly is larger than the horizontal area of the second diaphragm assembly, and the first diaphragm assembly and the second diaphragm assembly do not overlap with each other in a vertical plane.
In some embodiments, the housing assembly includes a top cover and a body, the top cover and the first and second diaphragm assemblies surround to form a front cavity, and the body and the first and second diaphragm assemblies surround to form a back cavity.
In some embodiments, the housing assembly has a first cavity and a second cavity, the sound outlet, the front cavity and the rear cavity are located in the first cavity, and the second cavity is communicated with the first cavity.
In some embodiments, the second cavity is located on a side of the second diaphragm assembly away from the sound outlet, and the second cavity communicates with the back cavity.
In the embodiment of the application, the micro-speaker is provided with the second diaphragm component on one side of the first diaphragm component, so that the problem of poor medium-frequency sensitivity is solved. Meanwhile, the second vibrating diaphragm assembly is provided with an air leakage through hole, so that the pressure of the cavity is maintained on the premise of not influencing the space of the cavity. Therefore, the micro loudspeaker with the medium-frequency and low-frequency sensitivity is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a perspective view of a micro-speaker according to an embodiment of the present application;
FIG. 2 is an exploded view of a micro-speaker according to an embodiment of the present application;
FIG. 3 is an exploded view of a housing assembly of an embodiment of the present application;
FIG. 4 is a cross-sectional perspective view taken along line a-a' of FIG. 1;
FIG. 5 is an exploded view of a first diaphragm assembly according to one embodiment of the present application;
FIG. 6 is an exploded view of a second diaphragm assembly according to one embodiment of the present application;
fig. 7 is a top view of a micro-speaker according to an embodiment of the present application;
FIG. 8 is a cross-sectional perspective view taken along line b-b' of FIG. 7;
FIG. 9 is a cross-sectional view taken along line b-b' of FIG. 7; and
fig. 10 is a frequency response diagram of a micro-speaker according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 to fig. 4 are a schematic view, an exploded view of a housing assembly, and a sectional perspective view of a line a-a' in fig. 1 of a micro-speaker according to an embodiment of the present application. As shown in the figure, the micro-speaker 1 includes a housing assembly 10, a first diaphragm assembly 11, and a second diaphragm assembly 12. The housing assembly 10 has a sound outlet 100, a front chamber 101 and a rear chamber 102, wherein the sound outlet 100 communicates with the front chamber 101 (refer to fig. 4). Specifically, the front chamber 101 refers to the upper half of the chamber body, and the rear chamber 102 refers to the lower half of the chamber body. The first diaphragm assembly 11 is disposed between the front cavity 101 and the back cavity 102. The second diaphragm assembly 12 is disposed between the front cavity 101 and the back cavity 102, wherein the second diaphragm assembly 12 is located on a side of the first diaphragm assembly 11 away from the sound outlet 100, and the second diaphragm assembly 12 has a venting through hole 120, and the venting through hole 120 is configured to communicate the front cavity 101 and the back cavity 102. Specifically, the cavity is divided by the first diaphragm assembly 11 and the second diaphragm assembly 12 into a front cavity 101 of the upper half and a rear cavity 102 of the lower half. In order to balance the pressure difference between the front cavity 101 and the back cavity 102, the present application provides a venting through hole 120 on the second diaphragm assembly 12, so as to achieve the effect of pressure balance.
It is worth mentioning that the first diaphragm assembly 11 and the second diaphragm assembly 12 of the present application are stacked along the horizontal direction. That is, the first diaphragm assembly 11 and the second diaphragm assembly 12 do not overlap in the vertical direction (or vertical plane). More specifically, the opening direction of the air-escape through hole 120 in the second diaphragm assembly 12 does not face the first diaphragm assembly 11. With the above arrangement, the cavity of the micro-speaker 1 can be divided into only the front cavity 101 and the rear cavity 102 without being divided into too many small cavities, resulting in insufficient space available for generating audio resonance.
Please refer to fig. 5, which is an exploded view of a first diaphragm assembly according to an embodiment of the present disclosure. As shown in the drawings, in some embodiments, the first diaphragm assembly 11 includes a first corrugated rim 110, a first diaphragm 111, and a first driving member 112. The first diaphragm 111 is disposed in the first corrugated rim 110. In some embodiments, the first hinge ring 110 and the first diaphragm 111 may be integrally formed. For example, the first corrugated rim 110 and the first diaphragm 111 may be formed by the same process. However, the present application is not limited thereto, and the first corrugated rim 110 and the first diaphragm 111 may be formed separately through different processes and connected to each other by bonding, clamping, and the like. The first driving member 112 is disposed on one side of the first diaphragm 111 and located in the rear cavity 102, and configured to drive the first diaphragm 111 to vibrate. In some embodiments, the first driving member 112 may include a voice coil, a magnet, or other driving elements recognized by those skilled in the art, so as to achieve the effect of driving the first diaphragm 111.
In some embodiments, the first diaphragm assembly 11 has a substantially rectangular shape. That is, the first corrugated rim 110 is a substantially rectangular ring structure, and the first diaphragm 111 also has a corresponding rectangular shape. Wherein "substantially rectangular shape" means that four corners of the first diaphragm assembly 11 may be chamfered as shown. The arc-shaped chamfer can avoid the problems of stress concentration and the like. It is worth mentioning that the present application is not limited to the above description. In other embodiments, the first diaphragm assembly 11 may not have a chamfer and may have four right angles.
Please refer to fig. 6, which is an exploded view of the second diaphragm assembly 12 according to an embodiment of the present disclosure. As shown, in some embodiments, the second diaphragm assembly 12 includes a second corrugated rim 121, a second diaphragm 122, and a second driving member (not shown). The second diaphragm 122 is disposed in the second folding ring 121, wherein the air-escape through hole 120 is disposed on the second diaphragm 122. In some embodiments, the second hinge 121 and the second diaphragm 122 may be integrally formed. For example, the second hinge 121 and the second diaphragm 122 may be formed through the same process. However, the present application is not limited thereto, and the second fold ring 121 and the second diaphragm 122 may be formed separately through different processes and connected to each other by bonding, clamping, and the like. In addition, the air escape through hole 120 of the second diaphragm 122 may be disposed at the geometric center of the second diaphragm 122, but is not limited thereto. For example, the venting through hole 120 on the second diaphragm 122 may be disposed on the outer side of the second diaphragm 122 as required, or may be disposed at any position on the second diaphragm 122 to correspond to various micro speakers 1. The second driving member is disposed on one side of the second diaphragm 122 and configured to drive the second diaphragm 122 to vibrate. The second driver is located in the rear cavity 102. Although the second driving member is not illustrated in detail in the drawings of the present application, those skilled in the art can combine the second driving member with similar or identical to the first driving member 112 by configuring the driving elements such as voice coil, magnet, etc. recognized by those skilled in the art, and achieve the effect of driving the second diaphragm assembly 12.
In some embodiments, the second diaphragm assembly 12 further includes an acoustic mesh 123, and the acoustic mesh 123 is disposed on the second diaphragm and covers the air-bleed holes 120. Specifically, the acoustic mesh 123 is configured to cover the air-leakage through holes 120, so that the air will inevitably pass through the acoustic mesh 123 when passing through the air-leakage through holes 120, thereby achieving the effect of slowing down the air pressure balancing speed. In other words, the acoustic mesh 123 is made of a material with air permeability, such as: artificial fibers or natural fibers, but are not limited thereto. In some embodiments, the porosity/pore size of the acoustic mesh 123 may be adjusted as desired. For example, when the acoustic mesh 123 has a high porosity or a large pore size, the air pressure balance speed of the micro-speaker 1 can be fast due to the fast air passing speed, so as to ensure the air pressure stability of the micro-speaker 1. Conversely, when the acoustic mesh 123 has a lower porosity or a smaller pore size, the air pressure balance speed of the micro-speaker 1 can be slower due to the slower air passing speed, so as to avoid the impact of the air flow on the components in the micro-speaker 1.
In some embodiments, the second tab 121 has a step 1210, wherein the step 1210 is located inside the second tab 121. Further, the second diaphragm assembly 12 further includes an annular adhesive 124, the annular adhesive 124 is disposed on the step portion 1210, the annular adhesive 124 is configured to adhere the second folding ring 121 and the acoustic mesh 123 on one side thereof, and the annular adhesive 124 is configured to adhere the second diaphragm 122 on the other side thereof. In other words, the second folding ring 121, the acoustic mesh 123, the annular adhesive 124 and the second diaphragm 122 are arranged in sequence. It is worth mentioning that the present application is not limited thereto, and in other embodiments, the acoustic mesh 123 may be located at an opposite position. For example, the second folding ring 121, the annular adhesive 124, the second diaphragm 122, and the acoustic mesh 123 may be arranged in sequence, and other adhesives may be disposed between the acoustic mesh 123 and the second diaphragm 122.
In some embodiments, the annular adhesive 124 may include latex (latex), acrylic resin (acrylic resin), epoxy resin (epoxy resin), Polyurethane (PU), or any combination thereof. However, the present application is not limited thereto, and any material recognized by those skilled in the art may be applied to the annular adhesive member 124.
In some embodiments, second diaphragm assembly 12 has a substantially circular shape. That is, the second bending ring 121 has a substantially circular ring structure, and the second diaphragm 122 also has a corresponding circular ring structure. It is worth mentioning that the present application is not limited to the above description. In other embodiments, the second diaphragm assembly 12 may also be oval or other approximately circular shaped profile.
In some embodiments, the first diaphragm assembly 11 and the second diaphragm assembly 12 may have the same shape according to requirements. For example, the first diaphragm assembly 11 and the second diaphragm assembly 12 may be substantially rectangular in shape at the same time. Alternatively, the first diaphragm assembly 11 and the second diaphragm assembly 12 may be substantially circular at the same time. In particular, the present application achieves superior audio sensitivity through the relative position, specific configuration, between the first diaphragm assembly 11 and the second diaphragm assembly 12. Therefore, any adjustment of the shape and size of the first diaphragm assembly 11 and the second diaphragm assembly 12 shall fall within the scope of the present application.
In some embodiments, the horizontal area of first diaphragm assembly 11 is greater than the horizontal area of second diaphragm assembly 12. In other words, in the present application, the first diaphragm assembly 11 is the main audio source, and the second diaphragm assembly 12 is used to balance the mid-frequency sensitivity of the first diaphragm assembly 11. Therefore, the horizontal area of the second diaphragm assembly 12 may be smaller than the horizontal area of the first diaphragm assembly 11. For example, the horizontal area of the second diaphragm assembly 12 may be 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, 10% of the horizontal area of the first diaphragm assembly 11 or any range therebetween. By changing the ratio between the second diaphragm assembly 12 and the first diaphragm assembly 11, the frequency response pattern can be more finely adjusted, thereby better improving the user experience.
As shown in fig. 2 and 3, in some embodiments, the housing assembly 10 includes an upper cover 103 and a main body 104, the upper cover 103 and the first and second diaphragm assemblies 11 and 12 surround to form a front cavity 101, and the main body 104 and the first and second diaphragm assemblies 11 and 12 surround to form a back cavity 102. Fig. 7 to 9 are a top view, a sectional perspective view of a line b-b 'in fig. 7, and a sectional view of a line b-b' in fig. 7 of a micro-speaker according to an embodiment of the present application. As shown, the back volume 102 (i.e., the "back volume") of the present application is extremely large based on the particular configuration of the present application. Therefore, the low-frequency sensitivity of the invention is not affected while the medium-high frequency is effectively improved. Please refer to fig. 10, which is a frequency response diagram of the micro-speaker 1 according to an embodiment of the present application. Wherein the solid line represents the frequency response curve when the second diaphragm assembly 12 is not disposed, and the dotted line represents the frequency response curve when the second diaphragm assembly 12 is disposed. From the test results of the present application, the specific structure of the present application indeed improves the frequency response curve, especially the most obvious frequency response curve between 1000Hz and 10000Hz at medium and high frequencies. In the case where the second diaphragm assembly 12 is provided, the frequency response curve between 1000Hz and 10000Hz of the medium-high frequency becomes smooth. In addition, since the air escape hole 120 is disposed at a position far from the sound outlet 100, the low frequency region of the frequency response curve is not affected, which can be concluded from the frequency response curve.
As shown in fig. 2 and 3, in some embodiments, the housing assembly 10 has a first cavity 10a and a second cavity 10b, the sound outlet 100, the front cavity 101 and the rear cavity 102 are located in the first cavity 10a, and the second cavity 10b is communicated with the first cavity 10 a. That is to say, the micro-speaker 1 of the present application may also be configured with other resonant cavities for balancing the audio sensitivity, so as to better improve the user experience. It should be noted that the size and shape of the second cavity 10b are only examples, and can be adjusted according to the requirement. In some embodiments, the second cavity 10b is located on a side of the second diaphragm assembly 12 away from the sound outlet 100, and the second cavity 10b communicates with the back cavity 102. In other words, the second cavity 10b is located on the left side of the first cavity 10a as viewed in fig. 8, and the sound outlet 100 is located on the side surface of the first cavity 10a away from the second cavity 10 b.
To sum up, the micro loudspeaker of this application is provided with second vibrating diaphragm subassembly through the one side at first vibrating diaphragm subassembly to improve the relatively poor problem of intermediate frequency sensitivity. Meanwhile, the second vibrating diaphragm assembly is provided with an air leakage through hole, so that the pressure of the cavity is maintained on the premise of not influencing the space of the cavity. Therefore, the micro loudspeaker with the medium-frequency and low-frequency sensitivity is realized.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A micro-speaker, comprising:
the shell assembly is provided with a sound outlet, a front cavity and a rear cavity, wherein the sound outlet is communicated with the front cavity;
a first diaphragm assembly disposed between the front cavity and the back cavity; and
a second diaphragm component, set up in the ante-chamber and between the back chamber, wherein the second diaphragm component is located first diaphragm component is kept away from one side of sound outlet, just the second diaphragm component has the through-hole of disappointing, the through-hole of disappointing is configured with the intercommunication ante-chamber and the back chamber.
2. The microspeaker of claim 1 wherein the first diaphragm assembly comprises:
a first fold ring;
the first diaphragm is arranged in the first folding ring; and
the first driving part is arranged on one side of the first diaphragm, is positioned in the rear cavity and is configured to drive the first diaphragm to vibrate.
3. The microspeaker of claim 1 wherein the second diaphragm assembly further comprises:
a second fold ring;
the second diaphragm is arranged in the second folding ring, and the air leakage through hole penetrates through the second diaphragm; and
the second driving part is arranged on one side of the second diaphragm and is configured to drive the second diaphragm to vibrate.
4. The micro-speaker of claim 3, wherein the second diaphragm assembly further comprises an acoustic mesh disposed on the second diaphragm and covering the venting through-hole.
5. The micro-speaker of claim 4, wherein the second flange has a step, the second diaphragm assembly further comprises a ring-shaped adhesive disposed on the step, the ring-shaped adhesive is configured to adhere the second flange and the acoustic mesh on one side thereof, and the ring-shaped adhesive is configured to adhere the second diaphragm on the other side thereof.
6. The microspeaker of claim 1 wherein the first diaphragm assembly is rectangular in shape and the second diaphragm assembly is circular in shape.
7. The microspeaker of claim 1 wherein the first diaphragm assembly has a horizontal area greater than a horizontal area of the second diaphragm assembly, the first diaphragm assembly and the second diaphragm assembly not overlapping each other in a vertical plane.
8. The micro-speaker of claim 1, wherein the housing assembly comprises a top cover and a body, the top cover and the first and second diaphragm assemblies surround to form the front cavity, and the body and the first and second diaphragm assemblies surround to form the back cavity.
9. The micro-speaker of claim 1, wherein the housing assembly has a first cavity and a second cavity, the sound outlet, the front cavity and the back cavity being located in the first cavity, the second cavity being in communication with the first cavity.
10. The microspeaker of claim 9 wherein the second cavity is located on a side of the second diaphragm assembly remote from the sound outlet, the second cavity communicating with the back volume.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111578085.8A CN114157967A (en) | 2021-12-22 | 2021-12-22 | Micro loudspeaker |
| TW111130842A TW202247673A (en) | 2021-12-22 | 2022-08-16 | Micro-speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111578085.8A CN114157967A (en) | 2021-12-22 | 2021-12-22 | Micro loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114157967A true CN114157967A (en) | 2022-03-08 |
Family
ID=80451733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111578085.8A Pending CN114157967A (en) | 2021-12-22 | 2021-12-22 | Micro loudspeaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114157967A (en) |
| TW (1) | TW202247673A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206226704U (en) * | 2016-10-31 | 2017-06-06 | 歌尔科技有限公司 | Loudspeaker module |
| US20180063634A1 (en) * | 2016-08-23 | 2018-03-01 | Apple Inc. | Vented acoustic transducers and related methods and systems |
| CN207869381U (en) * | 2018-01-30 | 2018-09-14 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN209462591U (en) * | 2019-03-12 | 2019-10-01 | 深圳市信维声学科技有限公司 | A kind of loadspeaker structure |
| CN110430511A (en) * | 2019-08-13 | 2019-11-08 | 美特科技(苏州)有限公司 | Loudspeaker module |
| CN111182423A (en) * | 2019-12-14 | 2020-05-19 | 瑞声科技(新加坡)有限公司 | Loudspeaker module and terminal equipment |
| CN111954129A (en) * | 2020-08-14 | 2020-11-17 | 美特科技(苏州)有限公司 | Loudspeaker module |
| CN212850988U (en) * | 2020-09-03 | 2021-03-30 | 歌尔股份有限公司 | Sound production monomer and sound production device |
| CN214707976U (en) * | 2021-06-17 | 2021-11-12 | 美特科技(苏州)有限公司 | Micro speaker module |
| CN215072961U (en) * | 2021-07-01 | 2021-12-07 | 浙江豪声电子科技股份有限公司 | Self-pressure-relief loudspeaker with vibrating diaphragm opening |
-
2021
- 2021-12-22 CN CN202111578085.8A patent/CN114157967A/en active Pending
-
2022
- 2022-08-16 TW TW111130842A patent/TW202247673A/en unknown
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180063634A1 (en) * | 2016-08-23 | 2018-03-01 | Apple Inc. | Vented acoustic transducers and related methods and systems |
| CN206226704U (en) * | 2016-10-31 | 2017-06-06 | 歌尔科技有限公司 | Loudspeaker module |
| CN207869381U (en) * | 2018-01-30 | 2018-09-14 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN209462591U (en) * | 2019-03-12 | 2019-10-01 | 深圳市信维声学科技有限公司 | A kind of loadspeaker structure |
| CN110430511A (en) * | 2019-08-13 | 2019-11-08 | 美特科技(苏州)有限公司 | Loudspeaker module |
| CN111182423A (en) * | 2019-12-14 | 2020-05-19 | 瑞声科技(新加坡)有限公司 | Loudspeaker module and terminal equipment |
| CN111954129A (en) * | 2020-08-14 | 2020-11-17 | 美特科技(苏州)有限公司 | Loudspeaker module |
| CN212850988U (en) * | 2020-09-03 | 2021-03-30 | 歌尔股份有限公司 | Sound production monomer and sound production device |
| CN214707976U (en) * | 2021-06-17 | 2021-11-12 | 美特科技(苏州)有限公司 | Micro speaker module |
| CN215072961U (en) * | 2021-07-01 | 2021-12-07 | 浙江豪声电子科技股份有限公司 | Self-pressure-relief loudspeaker with vibrating diaphragm opening |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202247673A (en) | 2022-12-01 |
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