CN217406724U - Sound production device and electronic equipment - Google Patents
Sound production device and electronic equipment Download PDFInfo
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- CN217406724U CN217406724U CN202220402729.1U CN202220402729U CN217406724U CN 217406724 U CN217406724 U CN 217406724U CN 202220402729 U CN202220402729 U CN 202220402729U CN 217406724 U CN217406724 U CN 217406724U
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Abstract
The application discloses a sound generating device and electronic equipment, wherein the sound generating device comprises a basin frame, a magnetic circuit system, a vibration system and a frequency divider, wherein the magnetic circuit system is connected with the basin frame; the vibration system comprises a voice coil, a vibration diaphragm and a high-frequency vibration plate, wherein one part of the voice coil is positioned in a magnetic gap of the magnetic circuit system, one end of the vibration diaphragm is connected with the voice coil, and the other end of the vibration diaphragm is connected with the basin frame; the high-frequency vibrating reed is connected with the voice coil and/or the vibrating diaphragm; the voice coil and the high-frequency vibrating reed are respectively electrically connected with the frequency divider; the diaphragm is configured to radiate a first sound signal under a driving action of the voice coil, and the high-frequency diaphragm is configured to radiate a second sound signal; the second sound signal has a frequency higher than the first sound signal.
Description
Technical Field
The present application relates to the field of electronic product technology, and more particularly, to a sound generating device and an electronic apparatus.
Background
With the development of science and technology, various electronic products gradually enter thousands of households to become necessities of life of people, and the electronic products bring great convenience to the life of people. For example, people may use smart speakers for learning and entertainment activities. In the intelligent sound box, a loudspeaker is used as a core component of the intelligent sound box, and the quality of the performance of the loudspeaker is an important index for measuring the performance of the intelligent sound box.
Speakers are distinguished by frequency and can be classified into woofers, midrange speakers, and tweeters. At present, the performance of low-frequency band, medium-frequency band and high-frequency band sounds is difficult to be expressed simultaneously by the loudspeaker used by the intelligent sound box, so that in order to better express the sound characteristics of a full-frequency band, the loudspeaker of different frequency bands is arranged on one sound box simultaneously by a common method at present. Although the setting mode can realize the function of playing music in different frequency bands of the loudspeaker box, the setting mode has a complex structure and needs a complete machine scheme company to have very strong professional ability.
In view of the above, a new technical solution is needed to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a new technical scheme of sound generating mechanism and electronic equipment.
According to a first aspect of the present application, there is provided a sound emitting device comprising:
a basin stand;
the magnetic circuit system is connected with the basin frame;
the vibration system comprises a voice coil, a vibration diaphragm and a high-frequency vibration plate, wherein one part of the voice coil is positioned in a magnetic gap of the magnetic circuit system, one end of the vibration diaphragm is connected with the voice coil, and the other end of the vibration diaphragm is connected with the basin frame; the high-frequency vibrating reed is connected with the voice coil and/or the vibrating diaphragm;
the voice coil and the high-frequency vibrating reed are electrically connected with the frequency divider respectively;
the diaphragm is configured to radiate a first sound signal under a driving action of the voice coil, and the high-frequency diaphragm is configured to radiate a second sound signal; the second sound signal has a frequency higher than a frequency of the first sound signal.
Optionally, the high-frequency vibrating piece is a piezoelectric ceramic piece.
Optionally, the thickness of the high-frequency vibrating piece is 0.1mm to 0.3 mm.
Alternatively, the shape of the high-frequency vibrating piece is circular.
Optionally, the frequency divider includes a frequency dividing inductor and a frequency dividing capacitor, the frequency dividing inductor is electrically connected to the voice coil, and the frequency dividing capacitor is electrically connected to the high-frequency vibration piece.
Optionally, the frequency divider is provided at an outer side wall of the tub.
Optionally, the vibration system further includes a centering support, one end of the centering support is connected to the voice coil, and the other end of the centering support is connected to the frame.
Optionally, the magnetic circuit system comprises a magnetic cover and a magnet, and a magnetic gap of the magnetic circuit system is formed between the magnetic cover and the magnet.
Optionally, the sound generating device further comprises a buffer sealing member, and the buffer sealing member is arranged on the basin frame and is abutted to the vibrating diaphragm.
According to a second aspect of the present application, there is provided an electronic device comprising the sound emitting apparatus according to the first aspect.
The sound generating device that this application embodiment provided is through setting up voice coil loudspeaker voice coil, vibrating diaphragm, trembler and frequency divider, and wherein, trembler and frequency divider ensure that this sound generating device possesses good well high-frequency sound effect, and voice coil loudspeaker voice coil, vibrating diaphragm and frequency divider ensure that this sound generating device possesses good well low-frequency sound effect. Therefore, when the sound generating device provided by the embodiment of the application is adopted, other sound generating devices with a plurality of different frequency bands do not need to be arranged, the complexity of the whole machine scheme is reduced, and the cost is saved.
Other features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic cross-sectional view of a sound generating device according to the present application.
Description of reference numerals:
101. a basin stand; 102. a voice coil; 103. vibrating diaphragm; 1031. a paper basin; 1032. folding the ring; 104. a high frequency vibrating piece; 105. a frequency divider; 106. a centering support; 107. a magnetic shield; 108. a magnet; 1081. a first magnet; 1082. a magnetic pole piece; 1083. a second magnet; 109. a cushioning seal; 110. and an external terminal.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.
Referring to fig. 1, according to an embodiment of the present application, there is provided a sound generating device including a frame 101, a magnetic circuit system connected to the frame 101, a vibration system, and a frequency divider 105; the vibration system comprises a voice coil 102, a vibrating diaphragm 103 and a high-frequency vibrating piece 104, wherein one part of the voice coil 102 is positioned in a magnetic gap of the magnetic circuit system, one end of the vibrating diaphragm 103 is connected with the voice coil 102, and the other end of the vibrating diaphragm is connected with the basin frame 101; the high-frequency vibration plate 104 is connected to the voice coil 102 and/or the diaphragm 103; the voice coil 102 and the high-frequency vibration plate 104 are electrically connected to the frequency divider 105, respectively; the voice coil 102 and the diaphragm 103 are configured to radiate a first sound signal, and the high frequency vibration plate 104 is configured to radiate a second sound signal; the second sound signal has a frequency higher than the first sound signal.
In the sound generating device provided by the embodiment of the application, firstly, after the sound generating device is powered on, current passes through the voice coil 102, the voice coil 102 receives an alternating electrical signal and generates an ampere force of reciprocating motion under the action of a magnetic field of a magnetic circuit system, and then the diaphragm 103 connected with the voice coil 102 is pushed to vibrate to generate sound. In order to ensure the sound performance of the sound generating device in the lower frequency band, the size of the sound generating device can be increased by increasing the size of the sound generating device, and the sizes of the voice coil 102 and the diaphragm 103 are increased accordingly, so that the sound performance of the lower frequency band can be improved. However, as the size of sound emitting devices increases, the sound performance of their higher frequency bands deteriorates conversely. Therefore, in the sound generating apparatus provided in the embodiment of the present application, the high-frequency vibration piece 104 is connected to the voice coil 102 and/or the diaphragm 103, and when the voice coil 102 and the diaphragm 103 vibrate under the action of the magnetic field of the magnetic circuit system, the high-frequency vibration piece 104 vibrates together to generate sound waves in a higher frequency band; meanwhile, by providing the frequency divider 105, the voice coil 102 and the high-frequency vibrating reed 104 are electrically connected to the frequency divider 105, respectively, the frequency divider 105 distributes an electric signal of a higher frequency band to the high-frequency vibrating reed 104, and the high-frequency vibrating reed 104 vibrates and radiates a second sound signal of a higher frequency to the outside; meanwhile, the frequency divider 105 distributes the electrical signal of a lower frequency band to the voice coil 102, and the voice coil 102 vibrates and drives the diaphragm 103 to radiate a first sound signal of a lower frequency outwards; in this way, the sound generating apparatus provided in the embodiment of the present application can have a good sound effect in all frequency bands, specifically, the high-frequency vibrating reed 104 and the frequency divider 105 ensure that the sound generating apparatus has a good middle-high frequency sound effect, and the voice coil 102, the vibrating diaphragm 103 and the frequency divider 105 ensure that the sound generating apparatus has a good middle-low frequency sound effect. Therefore, when the sound generating device provided by the embodiment of the application is adopted, other sound generating devices with a plurality of different frequency bands do not need to be arranged, the complexity of the whole machine scheme is reduced, and the cost is saved.
Further specifically, in one embodiment, the high-frequency vibrating piece 104 is a piezoelectric ceramic piece. The piezoelectric ceramic plate can be conveniently electrically connected with the frequency divider 105, has strong Young modulus, and has excellent high-frequency performance when used as a sound generating device.
More specifically, in one embodiment, the thickness of the high-frequency vibrating piece 104 is 0.1mm to 0.3 mm.
In this specific example, the high-frequency vibrating piece 104 having a thickness in the range of 0.1mm to 0.3mm is selected to further ensure a strong young's modulus, thereby further ensuring the high-frequency performance of the vibration sound.
Further specifically, in one embodiment, the shape of the high frequency vibration plate 104 is circular.
In this specific example, the circular high-frequency vibration plate 104 is selected to be well adapted to the shape of the sound generating device, so that the connection of the high-frequency vibration plate 104 in the sound generating device is more stable and firm, and the high-frequency vibration plate 104 not only plays a role of vibration sound generation, but also plays a role of a common dust cap. Of course, in the sound generating apparatus, a common dust cap may be further disposed at an outer side position of the high frequency vibrating piece 104 away from the voice coil 102, so as to improve the dust-proof effect.
More specifically, the high-frequency vibration plate 104 may be connected to the voice coil 102 when the diameter is small, may be connected to the diaphragm 103 when the diameter is large, and may be connected to both the voice coil 102 and the diaphragm 103.
Further specifically, referring to fig. 1, the diaphragm 103 includes a central through hole, a cone 1031 and a folding ring 1032, the cone 1031 is connected to the folding ring 1032, and the voice coil 102 is sleeved in the central through hole and abuts against the cone 1031; the edge of the flap 1032 remote from the tub 1031 is attached to the frame 101. Further specifically, the paper basin 1031 and the fold ring 1032 may be of an integral structure; the basin 1031 and the folding ring 1032 may be separate structures made of different materials and then connected together. For example, the cone 1031 is made of paper, composite polymer material, aluminum alloy or aluminum magnesium alloy, and the like, and the thickness of the cone 1031 is 0.05mm-0.3 mm; the folding ring 1032 is made of TPU, rubber, paper, high molecular polymer or cloth.
In one embodiment, the frequency divider 105 includes a frequency dividing inductor electrically connected to the voice coil 102 and a frequency dividing capacitor electrically connected to the high frequency vibration piece 104.
In this specific example, the voice coil 102, the high-frequency vibration piece 104, and the frequency divider 105 are electrically connected to each other, specifically, the frequency-dividing inductor of the frequency divider 105 is electrically connected to the voice coil 102, and the frequency-dividing capacitor of the frequency divider 105 is electrically connected to the high-frequency vibration piece 104; thereby, the frequency divider 105 distributes the electric signal of the higher frequency band to the high frequency diaphragm 104 and the electric signal of the lower frequency band to the voice coil 102.
Referring to FIG. 1, in one embodiment, the frequency divider 105 is disposed at an outer sidewall of the frame 101.
In this specific example, the frequency divider 105 is provided at the outer side wall of the frame 101, the installation is convenient and the frequency divider 105 does not occupy the space inside the sound generating apparatus.
Referring to fig. 1, in one embodiment, the vibration system further comprises a spider 106, wherein one end of the spider 106 is connected to the voice coil 102 and the other end is connected to the frame 101.
In this specific example, the arrangement of the centering branch 106 can make the voice coil 102 be linearly controlled when moving axially upward and downward, thereby reducing the probability of the voice coil 102 swinging left and right along the radial direction, improving the nonlinear distortion, and improving the reliability of the operation of the voice coil 102. More specifically, the material of the centering sheet 106 may be cotton, conex, a mixture of conex and cotton, hemp, rayon, etc., and the thickness of the centering sheet 106 is 0.1mm to 0.5 mm. More specifically, the frame 101 is used for supporting other components of the sound generating device and connecting with an external device, and the frame 101 may be made of SPCC or ABS/PC.
Referring to fig. 1, in one embodiment, the magnetic circuit system includes a magnetic cover 107 and a magnet 108, and a magnetic gap of the magnetic circuit system is formed between the magnetic cover 107 and the magnet 108.
More specifically, the magnet 108 includes a first magnet 1081, a pole piece 1082, and a second magnet 1083, which are stacked in this order. The first magnet 1081 is a rare earth permanent magnet, and may be made of neodymium iron boron or alnico; the pole piece 1082 may be made of SPCC, SPCD, SPCE, or the like; the second magnet 1083 is a rare earth permanent magnet, which may be neodymium iron boron or alnico.
More specifically, the pole piece 1082 and the magnetic shield 107 are configured to redirect the magnetic field to change the magnetic field in the vertical direction to a magnetic field that is approximately horizontal between the pole piece 1082 and the magnetic shield 107. The material of the magnetic cover 107 may be SPCC, SPCD, SPCE, or the like.
Referring to fig. 1, in one embodiment, the sound generating device further comprises a buffer sealing member 109, and the buffer sealing member 109 is disposed on the frame 101 and abuts against the diaphragm 103.
In this particular example, the damper seal 109 is provided to minimize hard-to-hard contact of the sound generator when connected to an external device; when the sound generating device is installed in the whole machine and connected with other equipment, the buffering sealing piece 109 plays a role in buffering, and vibration of the sound generating device is prevented from being transmitted to other equipment.
More specifically, the material of the buffer sealing element 109 may be compressible PSR, EVA, TPU, rubber, etc.; the thickness of the buffer seal 109 is 0.5mm-5 mm; the compression ratio of the cushion seal 109 is 0.3 to 0.8.
In one embodiment, the sound generating device further includes an external terminal 110, the external terminal 110 is used for connecting the sound generating device and an external circuit, and the external terminal 110 may be made of a cardboard riveted metal terminal, a PCB, or the like.
According to another embodiment of the present application, there is provided an electronic apparatus including the sound emitting device as described above.
Further specifically, the sound generating device may be, for example, a speaker, and the electronic device may be, for example, a smart speaker, where acoustic design difficulty of the smart speaker is low.
Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.
Claims (10)
1. A sound generating device, comprising:
a basin stand (101);
a magnetic circuit system connected with the basin stand (101);
the vibration system comprises a voice coil (102), a vibrating diaphragm (103) and a high-frequency vibrating piece (104), wherein one part of the voice coil (102) is positioned in a magnetic gap of the magnetic circuit system, one end of the vibrating diaphragm (103) is connected with the voice coil (102), and the other end of the vibrating diaphragm is connected with the basin frame (101); the high-frequency vibration piece (104) is connected with the voice coil (102) and/or the vibrating diaphragm (103);
a frequency divider (105), wherein the voice coil (102) and the high-frequency vibration piece (104) are electrically connected to the frequency divider (105), respectively;
the diaphragm (103) is configured to radiate a first sound signal under the driving action of the voice coil (102), and the high-frequency vibration piece (104) is configured to radiate a second sound signal; the second sound signal has a frequency higher than the first sound signal.
2. The sound-emitting device according to claim 1, wherein the high-frequency vibrating piece (104) is a piezoceramic piece.
3. The sound emitting device as claimed in claim 1, wherein the thickness of said high frequency vibration plate (104) is 0.1mm-0.3 mm.
4. A sound-emitting device according to claim 1, wherein said high-frequency vibration plate (104) is circular in shape.
5. The sound generating apparatus according to claim 1, wherein the frequency divider (105) comprises a frequency-dividing inductor and a frequency-dividing capacitor, the frequency-dividing inductor is electrically connected to the voice coil (102), and the frequency-dividing capacitor is electrically connected to the high-frequency vibration plate (104).
6. The sound generating device according to claim 1, characterized in that the frequency divider (105) is arranged at an outer side wall of the basin stand (101).
7. The sound generating device according to claim 1, wherein the vibration system further comprises a centering disk (106), one end of the centering disk (106) is connected to the voice coil (102), and the other end is connected to the frame (101).
8. The sound generating apparatus according to claim 1, wherein said magnetic circuit system comprises a magnetic cover (107) and a magnet (108), and a magnetic gap of said magnetic circuit system is formed between said magnetic cover (107) and said magnet (108).
9. The sound generating device according to claim 1, further comprising a cushion seal (109), wherein the cushion seal (109) is disposed on the frame (101) and abuts against the diaphragm (103).
10. An electronic device, characterized in that the electronic device comprises a sound emitting arrangement according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220402729.1U CN217406724U (en) | 2022-02-25 | 2022-02-25 | Sound production device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220402729.1U CN217406724U (en) | 2022-02-25 | 2022-02-25 | Sound production device and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217406724U true CN217406724U (en) | 2022-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220402729.1U Active CN217406724U (en) | 2022-02-25 | 2022-02-25 | Sound production device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217406724U (en) |
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- 2022-02-25 CN CN202220402729.1U patent/CN217406724U/en active Active
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