CN219145607U - Speaker and wearable device - Google Patents
Speaker and wearable device Download PDFInfo
- Publication number
- CN219145607U CN219145607U CN202320189072.XU CN202320189072U CN219145607U CN 219145607 U CN219145607 U CN 219145607U CN 202320189072 U CN202320189072 U CN 202320189072U CN 219145607 U CN219145607 U CN 219145607U
- Authority
- CN
- China
- Prior art keywords
- loudspeaker
- sound outlet
- moving
- moving iron
- speaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The present disclosure provides a speaker and a wearable device. A speaker, comprising: the shell is internally provided with a cavity, and the shell is provided with a loudspeaker sound outlet communicated with the cavity; the control circuit is positioned in the cavity; the sound outlet of the moving iron unit faces the sound outlet of the loudspeaker; the distance between the sound outlet of the moving iron unit and the sound outlet of the loudspeaker is not more than 5mm. According to the loudspeaker provided by the embodiment of the disclosure, the sound outlet of the moving iron unit faces the sound outlet of the loudspeaker, and the distance between the sound outlet and the sound outlet is not more than 5mm, so that the flatness of high-frequency sound is ensured in a straight sound outlet mode.
Description
Technical Field
The disclosure relates to the field of mechanical technology, and in particular to a speaker and a wearable device.
Background
Speaker assemblies on devices such as virtual reality, augmented reality, etc., typically use a single miniature moving coil speaker. In the related art, a moving coil speaker can only be made into a side sound emitting structure, namely, a sound emitting opening of the speaker and the vibration direction of a vibrating diaphragm form an included angle of 90 degrees, and high frequency attenuation is caused by the existence of a front cavity, so that the problem of unnatural high frequency tone is generally existed.
Disclosure of Invention
The present disclosure provides a speaker and a wearable device.
The present disclosure adopts the following technical solutions.
In some embodiments, the present disclosure provides a speaker comprising:
the shell is internally provided with a cavity, and the shell is provided with a loudspeaker sound outlet communicated with the cavity;
the control circuit is positioned in the cavity;
the sound outlet of the moving iron unit faces the sound outlet of the loudspeaker;
the distance between the sound outlet of the moving iron unit and the sound outlet of the loudspeaker is not more than 5mm.
In some embodiments, the present disclosure provides a wearable device comprising: a loudspeaker according to any preceding claim.
According to the loudspeaker provided by the embodiment of the disclosure, the sound outlet of the moving iron unit faces the sound outlet of the loudspeaker, and the distance between the sound outlet and the sound outlet is not more than 5mm, so that the flatness of high-frequency sound is ensured in a straight sound outlet mode.
Drawings
The above and other features, advantages, and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. The same or similar reference numbers will be used throughout the drawings to refer to the same or like elements. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.
Fig. 1 is a schematic partial cross-sectional view of a speaker of an embodiment of the present disclosure.
Fig. 2 is a schematic diagram of the connection of a circuit module, a moving iron unit, and a moving coil unit according to an embodiment of the present disclosure.
Fig. 3 is a schematic diagram of a moving iron unit of an embodiment of the present disclosure.
Fig. 4 is a schematic illustration of a display of an embodiment of the present disclosure when using a speaker.
Reference numerals: 1. a housing; 11. a speaker sound outlet; 2. a control circuit; 21. a signal source; 22. a first inductance; 23. a first capacitor; 24. a second inductor, 25, a second capacitor; 3. a moving iron unit; 4. a moving coil unit; 5. a coil; 6. a conductive rod; 7. a diaphragm plate; 8. a magnet; 9. iron sheet.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure have been shown in the accompanying drawings, it is to be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.
It should be understood that the various steps recited in the method embodiments of the present disclosure may be performed in and/or in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present disclosure is not limited in this respect.
The term "including" and variations thereof as used herein are intended to be open-ended, i.e., including, but not limited to. The term "based on" is based at least in part on. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments. Related definitions of other terms will be given in the description below.
It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.
It should be noted that references to "a" and "an" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be construed as "one or more" unless the context clearly indicates otherwise.
The names of messages or information interacted between the various devices in the embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.
The following describes in detail the schemes provided by the embodiments of the present disclosure with reference to the accompanying drawings.
In the related art, a single miniature moving-coil loudspeaker is usually used, and the problems of the scheme are that the moving-coil loudspeaker has large size, and the diaphragm area needs to be large to obtain enough sound pressure level, so that the structural space is occupied; the efficiency of the device is low, which is determined by the moving coil architecture, and the efficiency of the transducer itself for converting an electric signal into an acoustic signal is only about 1%. In addition, the moving coil loudspeaker can only be made into a side sound emitting structure, namely, the sound emitting port of the loudspeaker and the vibration direction of the vibrating diaphragm form an included angle of 90 degrees, and the existence of the front cavity can cause high-frequency attenuation, so that the problem that the high-frequency tone color is unnatural is commonly existed.
As shown in fig. 1 to 3, in some embodiments of the present disclosure, a speaker is proposed, including: the device comprises a shell 1, a control circuit 2 and at least one moving iron unit 3, wherein a cavity is formed in the shell 1, and a loudspeaker sound outlet 11 communicated with the cavity is formed in the shell 1; the control circuit 2 is positioned in the cavity; the moving iron unit 3 is positioned in the cavity and is electrically connected with the control circuit 2, and the sound outlet of the moving iron unit 3 faces to the sound outlet 11 of the loudspeaker; wherein, the interval of the sound outlet of the moving iron unit 3 and the sound outlet 11 of the loudspeaker is not more than 5mm.
In some embodiments of the present disclosure, the moving-iron unit has a size advantage over the moving-coil unit, and the size of the moving-coil unit commonly used in the virtual reality device is generally greater than 20mm×40mm×4mm, the size of the moving-coil unit commonly used in the augmented reality device is generally 8mm×25mm×3.5mm, and the single size of the moving-iron unit is generally 8mm×5mm×4mm, and a rear cavity is not required, with a significant size advantage. In this embodiment, the position of the sound outlet of the moving iron unit is adjusted to align with the sound outlet of the loudspeaker to form a straight sound, and the vibration direction of the vibrating diaphragm is consistent with that of the sound outlet of the loudspeaker, so that the flatness of high-frequency sound is improved. And the interval distance between the sound outlet of the moving iron unit and the sound outlet of the loudspeaker is not more than 5mm, and the mode of directly sounding is matched, so that the echo vibration of sound in the cavity is avoided, the audio effect is ensured, and particularly, the effect of high-frequency sound is ensured.
In some embodiments of the present disclosure, as shown in fig. 1 and 2, the speaker further includes a moving coil unit 4 located in the cavity and electrically connected to the control circuit 2. In some embodiments, the moving coil unit 4 is relatively larger than the moving coil unit 3, but the bass sound effect of the moving coil unit 4 is better than that of the moving coil unit, so in some embodiments of the present disclosure, the moving coil unit 3 and the moving coil unit 4 are simultaneously provided in the speaker, thereby ensuring the audio effect.
In some embodiments, the distance between the moving coil unit 4 and the moving iron unit 3 is not more than 5mm. In some embodiments, the moving-iron unit 3 and the moving-coil unit 4 should be as close as possible, and the distance between them is not greater than 5mm, so that the moving-coil unit 4 is also as close to the speaker sound outlet 11 as possible, so as to avoid the influence of the echo vibration of the sound in the cavity as much as possible.
In some embodiments of the present disclosure, the moving iron unit 3 is located in the speaker sound outlet 11 in a length direction of the speaker sound outlet 11, and at least half of the moving coil unit 4 is located in the speaker sound outlet 11.
In some embodiments, as shown in fig. 1, the moving iron unit 3 is located inside the speaker sound outlet 11 in the length direction of the housing 1, and in fig. 1, the length direction of the speaker sound outlet 11 is the transverse direction, and it can be seen that the moving iron unit 3 is located inside the speaker sound outlet in the transverse direction, that is, the projection of the moving iron unit 3 along the longitudinal direction is located inside the speaker sound outlet 11, so that the sound outlet of the moving iron unit 3 can directly face the speaker sound outlet, and at least half of the moving coil unit 4 in the length direction of the housing is also located inside the speaker sound outlet 11, so that the influence of the sound outlet of the front cavity is reduced to ensure the acoustic effect. For example, if the length of the moving coil unit 4 in the length direction of the housing 1 is 40mm and the moving iron unit 3 is 8mm, the speaker sound outlet 11 should be not less than 28mm in the length direction of the housing 1 for one moving iron unit 3.
In some embodiments of the present disclosure, the width of the speaker outlet 11 is not less than 1.5mm in the width direction of the housing 1. In some embodiments, by setting the size of the speaker outlet 11 in the width direction of the housing 1 to be not smaller than 1.5mm so as to avoid the occurrence of the influence of the sound caused by the undersize of the speaker outlet 11, the front cavity influence can also be reduced to secure the acoustic effect.
In some embodiments of the present disclosure, as shown in fig. 2, the control circuit 2 includes a signal source 21, a first frequency dividing circuit, and a second frequency dividing circuit; the signal source 21 is electrically connected with the first frequency dividing circuit and the second frequency dividing circuit, the moving iron unit 3 is electrically connected with the first frequency dividing circuit, and the moving coil unit 4 is electrically connected with the second frequency dividing circuit; the first frequency dividing circuit is used for transmitting the audio signal which is not lower than the preset frequency to the moving iron unit 3, and the second frequency dividing circuit is used for transmitting the audio signal which is lower than the preset frequency to the moving coil unit 4.
In some embodiments, the moving iron unit 3 has a better playing effect on the middle-high frequency audio, and the moving coil unit 4 has a better playing effect on the middle-low frequency audio, so that the audio signals sent by the signal source 21 are distinguished through the first frequency dividing circuit and the second frequency dividing circuit, the middle-high frequency audio signals are transmitted to the moving iron unit 3, the middle-low frequency audio signals are transmitted to the moving coil unit 4, and the two are matched with each other to achieve the effect of full-band sound playback.
In some embodiments of the present disclosure, as shown in fig. 2, the signal source 21 includes a positive terminal and a negative terminal; the first frequency dividing circuit comprises a first capacitor 23 and a first inductor 22; a first end of the first capacitor 23 is connected to the positive electrode end, and a second end of the first capacitor 23 is connected to a first end of the moving iron unit 3; the first end of the first inductor 22 is connected to the second end of the first capacitor 23, and the second end of the first inductor 22 is connected to the negative end and the second end of the moving iron unit 3.
In some embodiments, the capacitor has the effect of passing high frequency and low frequency, and the inductor has the effect of passing low frequency and high frequency, so that the audio signal with medium and high frequency sent by the signal source 21 can be transmitted to the moving iron unit 3 through the first capacitor 23, while the audio signal with medium and low frequency sent by the signal source 21 is difficult to pass through the first capacitor 23 and can be shorted by the first inductor 22, thus realizing the effect of transmitting the audio signal with frequency not lower than the preset frequency to the moving iron unit 3 and preventing the audio signal with frequency lower than the preset frequency from being transmitted to the moving iron unit 3. The inductance value of the first inductor 22 may be 0.1mH and the capacitance value of the first capacitor 23 may be 5 μf.
In some embodiments of the present disclosure, the signal source 21 includes a positive terminal and a negative terminal; the second frequency dividing circuit comprises a second capacitor 25 and a second inductor 24; a first end of the second inductor 24 is connected to the positive electrode end, and a second end of the first inductor 22 is connected to a first end of the moving coil unit 4; the first end of the second capacitor 25 is connected to the second end of the second inductor 24, and the second end of the second capacitor 25 is connected to the negative end and the second end of the moving coil unit 4.
In some embodiments, after the audio signal sent by the signal source 21 passes through the second inductor 24, the middle-high frequency part of the audio signal is filtered, the middle-low frequency part passes through, and even if there is a small amount of middle-high frequency audio signal, the audio signal will be shorted by the second capacitor 25, so as to ensure that the middle-low frequency audio signal is transmitted to the moving coil unit 4, and prevent the middle-high frequency audio signal from being transmitted to the moving coil unit 4. The inductance value of the second inductor 24 may be 0.1mH and the capacitance value of the second capacitor 25 may be 10 μf.
In some embodiments, fig. 3 schematically shows a schematic diagram of a moving iron unit, in which a coil 5, a magnet 8, an iron sheet 9, a conductive rod 6 and a diaphragm 7 are provided, and in operation, an electrical signal is transmitted to the coil 5, and the attraction of the magnet 8 to the iron sheet 9 is disturbed under the action of the coil 5, so that the iron sheet 9 vibrates, and the vibration drives the diaphragm 7 to expand and sound through the conductive rod 6.
In some embodiments of the disclosure, the speaker is an open speaker. In some embodiments the open speaker is not placed into the user's ear when in use. Fig. 4 schematically shows an open speaker in some embodiments of the present disclosure, where the strap in fig. 4 is a housing, the arrow direction is the length direction of the housing, the position selected by the box is the position of the speaker sound outlet, when the speaker is used by a user, the speaker sound outlet is downward, and is located outside the ear of the user, that is, is an open speaker, the rear edge of the speaker sound outlet is approximately aligned with the vertical direction of the ear opening of the user, and the sound emitted by the speaker is transmitted to the ear of the user through air vibration. The position of the moving iron unit should be near the sound outlet of the whole loudspeaker, and the moving iron unit should be no more than 5 cm away from the ear canal opening of the human ear and point to the ear canal direction when the loudspeaker is used, which is calculated according to the sensitivity of the moving iron unit, and generally the moving iron unit can reach a sound pressure level of 120dBSPL@1cm or higher in the 711 artificial ear pressure field, but can drop sharply in an open field, and in order to realize that the loudness at the human ear is enough at 1 k-20 kHz or higher, the energy exceeding 5 cm is insufficient. The specific calculation formula is as follows:
SPL＝20log 10 (P/P ref )
where Spl=sound Pressure Level (SPL), p=sound pressure effective value, pref=reference sound pressure.
In some embodiments of the present disclosure, there is also provided a wearable device comprising: the speaker of any of the embodiments. In some embodiments, the wearable device may be a virtual reality device, an augmented reality device, a mixed reality device, and an augmented reality device.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by persons skilled in the art that the scope of the disclosure referred to in this disclosure is not limited to the specific combinations of features described above, but also covers other embodiments which may be formed by any combination of features described above or equivalents thereof without departing from the spirit of the disclosure. Such as those described above, are mutually substituted with the technical features having similar functions disclosed in the present disclosure (but not limited thereto).
Moreover, although operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the present disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are example forms of implementing the claims.
Claims (10)
1. A loudspeaker, comprising:
the loudspeaker comprises a shell (1), wherein a cavity is formed in the shell (1), and a loudspeaker sound outlet (11) communicated to the cavity is formed in the shell (1);
a control circuit (2) located within the cavity;
the moving iron unit (3) is positioned in the cavity and is electrically connected with the control circuit (2), and the sound outlet of the moving iron unit (3) faces the sound outlet (11) of the loudspeaker;
the distance between the sound outlet of the moving iron unit (3) and the sound outlet (11) of the loudspeaker is not more than 5mm.
2. The loudspeaker of claim 1, further comprising:
and the moving coil unit (4) is positioned in the cavity and is electrically connected with the control circuit (2).
3. A loudspeaker according to claim 2, wherein,
the distance between the moving coil unit (4) and the moving iron unit (3) is not more than 5mm.
4. A loudspeaker according to claim 2, wherein,
in the length direction of the loudspeaker sound outlet (11), the moving iron unit (3) is positioned in the loudspeaker sound outlet (11), and at least half of the moving coil unit (4) is positioned in the loudspeaker sound outlet (11).
5. A loudspeaker according to claim 1, wherein,
in the width direction of the speaker sound outlet (11), the width of the speaker sound outlet (11) is not less than 1.5mm.
6. A loudspeaker according to claim 2, wherein,
the control circuit (2) comprises a signal source (21), a first frequency dividing circuit and a second frequency dividing circuit;
the signal source (21) is electrically connected with the first frequency dividing circuit and the second frequency dividing circuit, the moving iron unit (3) is electrically connected with the first frequency dividing circuit, and the moving coil unit (4) is electrically connected with the second frequency dividing circuit; the first frequency dividing circuit is used for transmitting the audio signal which is not lower than the preset frequency to the moving iron unit (3), and the second frequency dividing circuit is used for transmitting the audio signal which is lower than the preset frequency to the moving coil unit (4).
7. A loudspeaker according to claim 6, wherein,
the signal source (21) comprises a positive terminal and a negative terminal;
the first frequency dividing circuit comprises a first capacitor (23) and a first inductor (22);
a first end of the first capacitor (23) is connected to the positive electrode end, and a second end of the first capacitor (23) is connected to a first end of the moving iron unit (3);
the first end of the first inductor (22) is connected to the second end of the first capacitor (23), and the second end of the first inductor (22) is connected to the negative end and the second end of the moving iron unit (3).
8. A loudspeaker according to claim 7, wherein,
the second frequency division circuit comprises a second capacitor (25) and a second inductor (24);
a first end of the second inductor (24) is connected to the positive electrode end, and a second end of the first inductor (22) is connected to a first end of the moving coil unit (4);
the first end of the second capacitor (25) is connected to the second end of the second inductor (24), and the second end of the second capacitor (25) is connected to the negative end and the second end of the moving coil unit (4).
9. The loudspeaker of claim 1, wherein the loudspeaker is an open loudspeaker.
10. A wearable device, comprising: a loudspeaker according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320189072.XU CN219145607U (en) | 2023-01-29 | 2023-01-29 | Speaker and wearable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320189072.XU CN219145607U (en) | 2023-01-29 | 2023-01-29 | Speaker and wearable device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219145607U true CN219145607U (en) | 2023-06-06 |
Family
ID=86603214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320189072.XU Active CN219145607U (en) | 2023-01-29 | 2023-01-29 | Speaker and wearable device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219145607U (en) |
-
2023
- 2023-01-29 CN CN202320189072.XU patent/CN219145607U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1507438B1 (en) | Sound reproduction device and portable terminal apparatus | |
| CN104301838B (en) | Earphone with noise reduction | |
| US5068901A (en) | Dual outlet passage hearing aid transducer | |
| US5430803A (en) | Bifunctional earphone set | |
| US8208674B2 (en) | Squeeze-stretch driver for earphone and the like | |
| US4211898A (en) | Headphone with two resonant peaks for simulating loudspeaker reproduction | |
| CN103891308A (en) | Communication device | |
| CN102428714A (en) | Speaker, Hearing Aid, Earphone, And Portable Terminal Device | |
| US20110096949A1 (en) | Sound reproduction device with enhanced low-frequency sound effect | |
| CN110874203A (en) | Screen sounding controller, method, device, terminal and storage medium | |
| US7447322B2 (en) | Speaker having a transparent panel | |
| CN105340296A (en) | Acoustic receiver with internal screen | |
| EP4383749A1 (en) | Sound output device | |
| CN108282725A (en) | A kind of public address system and audio player of integrated back of the body cavity pressure perception | |
| CN110572759B (en) | Electronic device | |
| CN206164794U (en) | Earphone | |
| CN219145607U (en) | Speaker and wearable device | |
| WO2024037183A1 (en) | Audio output method, electronic device and computer-readable storage medium | |
| JP2014225734A (en) | Speaker apparatus | |
| WO2006078247A1 (en) | Speaker having a transparent panel | |
| CN214901279U (en) | Sound box and system | |
| KR102020233B1 (en) | Multi-driver earphone | |
| CN209390369U (en) | A kind of microphone and electronic equipment with echo sound-attenuating system | |
| CN220755045U (en) | Speaker module and electronic equipment | |
| EP4145856A1 (en) | Loudspeaker and electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |