CN219761298U - Speaker system and terminal equipment - Google Patents
Speaker system and terminal equipment Download PDFInfo
- Publication number
- CN219761298U CN219761298U CN202222428358.7U CN202222428358U CN219761298U CN 219761298 U CN219761298 U CN 219761298U CN 202222428358 U CN202222428358 U CN 202222428358U CN 219761298 U CN219761298 U CN 219761298U
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- China
- Prior art keywords
- passive radiator
- shell
- loudspeaker
- outlet channel
- sound
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- 239000000178 monomer Substances 0.000 claims abstract description 20
- 239000006260 foam Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 7
- 239000012790 adhesive layer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005238 low-frequency sound signal Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The utility model discloses a speaker system and terminal equipment, the speaker system includes: the loudspeaker comprises a shell, a loudspeaker monomer and a passive radiator, wherein the loudspeaker monomer is arranged inside the shell, a front cavity and a rear cavity are formed between the loudspeaker monomer and the shell, the front cavity is communicated with the outside of the shell through a first sound outlet channel, the passive radiator is arranged in the rear cavity, a closed space is formed between one side of the passive radiator and the loudspeaker monomer, and the other side of the passive radiator is communicated with the outside of the shell through a second sound outlet channel; in the utility model, the space between the passive radiator and the loudspeaker monomer is airtight, so that the energy transferred to the airtight space in the vibrating process of the vibrating diaphragm of the loudspeaker monomer can drive the passive radiator to vibrate, and the sound emitted by the vibration of the passive radiator is transferred to the outside through the second sound outlet channel.
Description
Technical Field
The present utility model relates to the field of electronic devices, and in particular, to a speaker system and a terminal device.
Background
The external loudspeaker system of the mobile terminal adopts micro-speaker units, and after the unit with low lowest resonance frequency Fo of the speaker sound cavity system is arranged in a box (namely, the sound cavity is basically a closed sound cavity acoustic structure), the frequency of the lowest resonance frequency Fb of the speaker unit also rises. The lowest resonance frequency Fb after the boxing is too high and the bass effect is poor.
The bass effect of the sound externally played by the mobile terminal is poor, and firstly, because the volume of the sound cavity is too small, the lowest resonance frequency Fb of the system is too high (generally less than or equal to 650 Hz) and more low-frequency sound signals cannot be repeated; secondly, because the sound production of the loudspeaker has two radiation sound waves, the forward sound wave is utilized, but the backward sound wave is lost due to white loss caused by sealing the back sound cavity, and the low-frequency sound is lost due to the fact that the sound sealed in the back sound cavity cannot be effectively utilized.
In view of this, how to reduce the lowest resonance frequency Fb of the acoustic cavity and to improve the bass effect is a problem to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the utility model aims to provide a loudspeaker system and terminal equipment, which can fully utilize the airtight sound wave energy in a rear cavity in the use process, reduce the lowest resonance frequency of a sound cavity and improve the low-frequency sound effect.
To solve the above technical problem, an embodiment of the present utility model provides a speaker system, including: the loudspeaker comprises a shell, a loudspeaker monomer and a passive radiator, wherein the loudspeaker monomer is arranged in the shell, a front cavity and a rear cavity are formed between the loudspeaker monomer and the shell, the front cavity is communicated with the outside of the shell through a first sound outlet channel, the passive radiator is arranged in the rear cavity, a closed space is formed between one side of the passive radiator and the loudspeaker monomer, and the other side of the passive radiator is communicated with the outside of the shell through a second sound outlet channel.
Optionally, the diaphragm surface of the passive radiator is parallel to the diaphragm plane of the speaker unit.
Optionally, the passive radiator is disposed in the rear cavity at a position far away from the speaker unit.
Optionally, the outlet of the first sound outlet channel and the outlet of the second sound outlet channel are located on the same side wall of the housing.
Optionally, the screen cloth is attached to the outer sides of the outlet of the first sound outlet channel and the outlet of the second sound outlet channel.
Optionally, the foam is arranged on the outer side of the mesh cloth.
The embodiment of the utility model also provides terminal equipment comprising the loudspeaker system.
The embodiment of the utility model provides a loudspeaker system, which comprises: the loudspeaker comprises a shell, a loudspeaker unit and a passive radiator, wherein the loudspeaker unit is arranged inside the shell, a front cavity and a rear cavity are formed between the loudspeaker unit and the shell, the front cavity is communicated with the outside of the shell through a first sound outlet channel, the passive radiator is arranged in the rear cavity, a closed space is formed between one side of the passive radiator and the loudspeaker unit, and the other side of the passive radiator is communicated with the outside of the shell through a second sound outlet channel.
Therefore, the front cavity of the loudspeaker monomer in the loudspeaker system is communicated with the outside of the shell through the first sound outlet channel, the passive radiator is arranged in the rear cavity of the loudspeaker monomer, a closed space is formed between one side of the passive radiator and the loudspeaker monomer, and the other side of the passive radiator is communicated with the outside of the shell through the second sound outlet channel.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required in the prior art and the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic side view of a speaker system according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of the overall structure of a speaker system according to an embodiment of the present utility model;
fig. 3 is an exploded view of a speaker system according to an embodiment of the present utility model.
Detailed Description
The embodiment of the utility model provides a loudspeaker system and terminal equipment, which can fully utilize the airtight sound wave energy in a rear cavity in the use process, reduce the lowest resonance frequency of a sound cavity and improve the low-frequency sound effect.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a speaker system according to an embodiment of the utility model. The speaker system includes: the loudspeaker comprises a shell 1, a loudspeaker unit 2 and a passive radiator 3, wherein the loudspeaker unit 2 is arranged inside the shell 1 and forms a front cavity 21 and a rear cavity 22 with the shell 1, the front cavity 21 is communicated with the outside of the shell 1 through a first sound outlet channel 4, the passive radiator 3 is arranged in the rear cavity 22, a closed space A is formed between one side of the passive radiator 3 and the loudspeaker unit 2, and the other side of the passive radiator 3 is communicated with the outside of the shell 1 through a second sound outlet channel 5.
It should be noted that, in the embodiment of the present utility model, the speaker unit 2 is disposed in the housing 1, and a front cavity 21 and a rear cavity 22 are formed between the speaker unit 2 and the housing 1 (as shown in fig. 1), the front cavity 21 is communicated with the outside of the housing 1 through the first sound outlet channel 4, so that sound generated when the diaphragm 23 of the speaker unit 2 vibrates is transmitted to the outside of the housing 1 through the front cavity 21 and the first sound outlet channel 4, and because the rear cavity 22 is a closed space a (i.e., a is a closed cavity), the passive radiator 3 shares the rear cavity, in order to better utilize the acoustic wave energy in the rear front cavity 22, in the embodiment of the present utility model, the space formed between the passive radiator 3 and the diaphragm 23 of the speaker unit 2 is closed, and a front cavity 31 is formed between the other side of the passive radiator 3 and the side wall of the housing 1, and the front cavity 31 of the passive radiator can be communicated with the outside of the housing 1 through the second sound outlet channel 5, so that the passive radiator 23 in the speaker unit 2 is pressed against the passive radiator 23 in the rear cavity 23 to the rear cavity 3, thereby better utilize the acoustic wave energy in the rear cavity 23, the acoustic wave energy in the passive radiator 23 is reduced to the lower the size of the passive radiator 3, and the acoustic wave energy is further improved, and the acoustic wave energy is further reduced to the lower the acoustic wave energy in the closed space is more linear, and the acoustic wave energy is more lower than the acoustic energy in the closed cavity 3.
Further, in the embodiment of the present utility model, the diaphragm surface of the passive radiator 3 is parallel to the plane of the diaphragm 23 of the speaker unit 2.
Specifically, in order to further improve the energy utilization rate of the backward sound wave in the enclosed space a and further improve the bass effect, the diaphragm surface of the passive radiator 3 in the embodiment of the present utility model is disposed parallel to the plane of the diaphragm 23 of the speaker unit 2.
Further, the passive radiator 3 in the embodiment of the present utility model is disposed in the rear cavity 22 at a position far from the speaker unit 2.
It should be noted that, because the sound wave needs to be propagated to the four walls of the enclosed space a to generate resonance after being reflected, and the wavelength of the low-frequency sound wave is longer, the position where the passive radiator 3 is arranged is far from the speaker unit 2, so that the sound wave with stronger energy can be generated by multiple reflection and folding to drive the passive radiator 3 to vibrate, therefore, in the embodiment of the utility model, the preferred passive radiator 3 is arranged in the rear cavity 22 at the position far from the speaker unit 2, but the situation that the passive radiator 3 touches the side wall of the housing 1 when vibrating is avoided, and the specific arrangement position of the passive radiator 2 can be determined according to the actual situation.
Further, referring to fig. 2 and 3, in order to further improve the low frequency effect, the outlet of the first sound outlet channel 4 and the outlet of the second sound outlet channel 5 may be located on the same side wall of the housing 1, and of course, may be disposed on different side walls in practical applications, and the specific disposition location may be determined according to practical needs.
Furthermore, the speaker system according to the embodiment of the present utility model may further include a mesh 6 disposed outside the outlet of the first sound outlet channel 4 and the outlet of the second sound outlet channel 5, and foam 7 disposed outside the mesh 6, so as to better protect the internal components of the speaker system, for example, prevent external dust or other particulate matters from entering the speaker system to damage the internal components.
In addition, as shown in fig. 3, the passive radiator 3 may be combined with the speaker unit 2 through the first adhesive layer B, and the speaker unit 2 may be combined with the lower cover 12 of the housing 1 through the second adhesive layer C, where the passive radiator further includes the upper cover 11 of the housing 1.
Therefore, the front cavity of the loudspeaker monomer in the loudspeaker system is communicated with the outside of the shell through the first sound outlet channel, the passive radiator is arranged in the rear cavity of the loudspeaker monomer, a closed space is formed between one side of the passive radiator and the loudspeaker monomer, and the other side of the passive radiator is communicated with the outside of the shell through the second sound outlet channel.
On the basis of the embodiment, the embodiment of the utility model also provides a terminal device, which comprises the loudspeaker system.
Specifically, in practical application, the terminal device may be a mobile phone, and the terminal device provided in the embodiment of the present utility model has the same beneficial effects as the speaker system provided in the foregoing embodiment, and for the specific description of the speaker system related in the embodiment of the present utility model, please refer to the foregoing embodiment, and the disclosure of the present utility model is not repeated herein.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A speaker system, comprising: the loudspeaker comprises a shell, a loudspeaker monomer and a passive radiator, wherein the loudspeaker monomer is arranged in the shell, a front cavity and a rear cavity are formed between the loudspeaker monomer and the shell, the front cavity is communicated with the outside of the shell through a first sound outlet channel, the passive radiator is arranged in the rear cavity, a closed space is formed between one side of the passive radiator and the loudspeaker monomer, and the other side of the passive radiator is communicated with the outside of the shell through a second sound outlet channel.
2. The loudspeaker system of claim 1 wherein the passive radiator has a diaphragm plane parallel to a diaphragm plane of the speaker unit.
3. The speaker system of claim 2, wherein the passive radiator is disposed in the rear cavity at a location remote from the speaker unit.
4. The speaker system of claim 1 wherein the outlet of the first sound outlet channel is located on the same side wall of the housing as the outlet of the second sound outlet channel.
5. The loudspeaker system of claim 4, further comprising a mesh affixed outside of the outlet of the first sound outlet channel and the outlet of the second sound outlet channel.
6. The loudspeaker system of claim 5, further comprising foam disposed outside the mesh.
7. A terminal device comprising a loudspeaker system as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222428358.7U CN219761298U (en) | 2022-09-09 | 2022-09-09 | Speaker system and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222428358.7U CN219761298U (en) | 2022-09-09 | 2022-09-09 | Speaker system and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219761298U true CN219761298U (en) | 2023-09-26 |
Family
ID=88072793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222428358.7U Active CN219761298U (en) | 2022-09-09 | 2022-09-09 | Speaker system and terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219761298U (en) |
-
2022
- 2022-09-09 CN CN202222428358.7U patent/CN219761298U/en active Active
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| GR01 | Patent grant | ||
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