CN208821056U - A kind of sounding device monomer and sounding device mould group - Google Patents
A kind of sounding device monomer and sounding device mould group Download PDFInfo
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- CN208821056U CN208821056U CN201821754347.5U CN201821754347U CN208821056U CN 208821056 U CN208821056 U CN 208821056U CN 201821754347 U CN201821754347 U CN 201821754347U CN 208821056 U CN208821056 U CN 208821056U
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- 239000000178 monomer Substances 0.000 title abstract description 19
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 description 28
- 238000013461 design Methods 0.000 description 6
- 230000035945 sensitivity Effects 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000026683 transduction Effects 0.000 description 1
- 238000010361 transduction Methods 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to a kind of sounding device monomer and sounding device mould groups.The sounding device monomer includes: shell；Vibrational system, the vibrational system include vibrating diaphragm, and the edge part of the vibrating diaphragm is fixed on the housing；And magnetic circuit system, the magnetic circuit system include side magnet, the shell is located at least partially between the vibrating diaphragm and the side magnet；Wherein, the side magnet include along the vibrating diaphragm main direction protrude from the edge part outer edge extension.One of the utility model has technical effect that, is able to ascend the acoustical behavior of loudspeaker monomer.
Description
Technical Field
The utility model relates to an acoustoelectric transduction technical field, more specifically, the utility model relates to a sound generating mechanism monomer and sound generating mechanism module.
Background
Sound generators are commonly used in modern consumer electronics as electroacoustic transducers for converting electrical signals into sound. Under the technological trend of rapid development of consumer electronics, the performance of sound generating devices is gradually developing, and the sound generating devices are adapted to the updating of electronic products.
At present, as electronic products such as mobile phones and tablet computers are continuously pursuing light and thin designs, the structure of the sound generating device is becoming more complicated and diversified. Therefore, the novel sound generating device module is mostly provided with a rear cavity and a front cavity which are complex in structure, and the cavity structure presents certain asymmetry.
Common sound generating mechanism monomer because magnetic circuit is close with the size of vibrating diaphragm, and the size of vibrating diaphragm receives the restriction of sound generating mechanism module back cavity structure and size, when sound generating mechanism monomer assembled the back cavity of sound generating mechanism module, sound generating mechanism monomer's magnetic circuit was difficult to the space of make full use of sound generating mechanism module cavity to can't exert more excellent acoustic performance.
Therefore, a new technical solution is needed to solve these problems.
SUMMERY OF THE UTILITY MODEL
According to an aspect of the utility model, a sound generating mechanism monomer is provided. This sound generating mechanism monomer includes:
a housing;
the vibration system comprises a vibrating diaphragm, and the edge part of the vibrating diaphragm is fixed on the shell; and the number of the first and second groups,
the magnetic circuit system comprises a side magnet, and at least part of the shell is positioned between the vibrating diaphragm and the side magnet; wherein,
the edge magnet comprises an extension part protruding out of the outer edge of the edge part along the main body direction of the diaphragm.
Optionally, the housing is formed with a recess at a position opposite to the extension of the side magnet.
Optionally, an edge portion of the diaphragm is fixed on the upper surface of the housing, and an outer edge of the edge portion is flush with the side wall of the step structure.
Optionally, the recess is in a step structure.
Optionally, an outer side wall of the side magnet is flush with an outer side wall of the housing.
Optionally, the magnetic circuit system further includes a magnetic conductive plate, where the magnetic conductive plate includes a side magnetic conductive plate, the side magnetic conductive plate is disposed on the side magnet, and at least a part of the side magnetic conductive plate is located between the casing and the side magnet.
Optionally, the side magnetic conductive plate is located on the side magnet at a position opposite to the diaphragm.
Optionally, the magnetic circuit system further includes a magnetic yoke, the side magnet is disposed on the magnetic yoke, and a side wall of the magnetic yoke is flush with a side wall of the side magnet.
Optionally, the magnetic circuit system further includes a central magnet, and the four side magnets are respectively disposed at positions opposite to the four sides of the central magnet.
According to another aspect of the utility model, a sound generating mechanism module is provided. The sound-generating device module comprises the sound-generating device monomer.
The utility model discloses a technological effect lies in, can promote the free acoustic performance of speaker.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a top view of a single sound generating device according to an embodiment of the present invention;
fig. 2 is a bottom view of a single sound generating device provided in an embodiment of the present invention;
fig. 3 is a sectional view of a single sound generating device provided in an embodiment of the present invention;
fig. 4 is an exploded view of a single sound generating device according to an embodiment of the present invention.
Description of reference numerals:
11-a reinforcing part, 12-a diaphragm, 121-an edge part, 13-a voice coil, 14-a shell, 141-a sunken part, 15-a central magnetic conduction plate, 16-a central magnet, 17-an edge magnetic conduction plate, 18-an edge magnet, 181-an extension part, 19-a magnetic yoke and 191-a dodge part.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, 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 invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a 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, further discussion thereof is not required in subsequent figures.
The utility model discloses a loudspeaker monomer, refer to fig. 1-4, including casing 14, vibration system and magnetic circuit.
Specifically, the vibration system includes a diaphragm 12, the diaphragm 12 includes a folded ring portion, an intermediate portion located in the folded ring portion, and an edge portion 121 located outside the folded ring portion, the edge portion 121 of the diaphragm 12 is fixed on the housing 14, and the diaphragm 12 may be fixed on the housing 14 by using a hot melting method, an adhesion method, or the like. The magnetic circuit includes a side magnet 18, and at least a portion of the housing 14 is located between the diaphragm 12 and the side magnet 18. Wherein, the extending direction in the plane of the diaphragm 12 is the main body direction of the diaphragm 12.
Further, the edge magnet 18 includes an extension portion 181 protruding from an outer edge of the edge portion 121 in the main body direction of the diaphragm 12, and the outer edge of the edge portion 121 is opposite to a position between an inner side wall and an outer side wall of the edge magnet 18. The extension part 181 is arranged to increase the width of the side magnet 18 relative to the diaphragm 12, so as to increase the magnetic field strength generated by the side magnet 18, improve the magnetic induction strength of the magnetic gap in the magnetic circuit system, and improve the magnetic field acting force applied to the energized coil. Under the condition of ensuring that the coil parameters in the magnetic circuit system are unchanged, the acting force applied to the electrified coil can be improved by increasing the magnetic field intensity of the side magnet 18, so that the sensitivity of the vibration system can be improved, and the single acoustic performance of the sound generating device is improved.
The utility model provides a sound generating mechanism monomer when assembling the sound generating mechanism module, can correspond the free size of design sound generating mechanism according to the size of the back chamber of sound generating mechanism module for the relative magnetic circuit of vibration system diminishes. For example, the effective vibration area of the diaphragm in the single vibration system of the sound generating device is reduced according to the rear cavity of the sound generating device module, and the size of the magnetic circuit system is ensured to be unchanged, so that the side magnet forms an extension part relative to the diaphragm, namely the magnetic field intensity provided by the magnetic circuit system is kept unchanged, and therefore the vibration amplitude of the diaphragm can be increased; or, according to the back chamber increase magnetic circuit of sound generating mechanism module in the width of limit magnet in order to form the extension, improved the magnetic field intensity that magnetic circuit provided, under the unchangeable condition of vibration system parameter, can improve the magnetic field effort that the circular telegram coil received, and then can improve vibration system's sensitivity, improved the free acoustic performance of sound generating mechanism.
As shown in fig. 1 to 4, the housing 14 is formed with a receiving cavity for assembling the magnetic circuit system and the vibration system. Specifically, the housing 14 is formed with a recess 141 at a position opposed to the extension of the side magnet 18. When the rear cavity of the sound generating device module is small, the effective vibration area of the vibrating diaphragm in the single vibration system of the sound generating device can be reduced according to the rear cavity of the sound generating device module, so that the recess 141 is formed. Through the setting of depressed part 141, can guarantee that magnetic circuit's size is unchangeable, and magnetic field intensity that magnetic circuit provided keeps unchangeable promptly, consequently, can increase the amplitude of vibrating diaphragm vibration, the sound generating mechanism monomer of being convenient for is installed in the less sound generating mechanism module in back chamber. Or, the width of the edge magnet 18 in the magnetic circuit system can be increased to form the recessed part 141, the width of the edge magnet 18 in the magnetic circuit system is increased according to the rear cavity of the sound generating device module, the magnetic field intensity provided by the magnetic circuit system is improved, the magnetic field acting force applied to the electrified coil can be improved under the condition that the parameters of the vibration system are not changed, the sensitivity of the vibration system can be improved, and the single acoustic performance of the sound generating device is improved.
Optionally, as shown in fig. 3, the recessed portion 141 is of a step structure, the step structure can facilitate installation of the single sound generating device into the sound generating device module, good spacing can be formed between the single sound generating device and the sound generating device module, stability of installation of the single sound generating device into the sound generating device module is improved, and meanwhile, design and processing of the shell 14 are facilitated by the recessed portion of the step structure, and difficulty of a production process of the shell 14 is reduced. The depressed part can also be other structures or shapes, the utility model discloses do not do the restriction to this, all schemes that can reach same technological effect all belong to the utility model discloses a protection scope.
Alternatively, the edge portion 121 of the diaphragm 12 is fixed to the upper surface of the housing 14, and the outer edge of the edge portion 121 is flush with the sidewall on the step structure. With this design, the size of the diaphragm 12 corresponds to the size of the corresponding housing 14, and the sound generating device unit can be assembled into a sound generating device module with a smaller back cavity while the size of the diaphragm 12 is not changed.
Alternatively, as shown in FIG. 3, the outer side wall of the edge magnet 18 is flush with the outer side wall of the housing 14. By adopting the design, the size of the side magnet 18 is the same as that of the cavity of the sounding device module in which the sounding device is installed, so that the width of the side magnet 18 can reach the allowable maximum value, the magnetic field intensity provided by the magnetic circuit system is improved, the magnetic field acting force applied to the electrified coil can be improved under the condition that the parameters of the vibration system are unchanged, the sensitivity of the vibration system can be improved, and the acoustic performance of the sounding device is improved.
As shown in fig. 3 to 4, the magnetic circuit system includes a reinforcing portion 11 provided on the intermediate portion of the diaphragm 12, and a voice coil 13 connected to the intermediate portion of the diaphragm 12. In the present embodiment, the reinforcing portion 11 and the voice coil 13 are respectively located on two sides of the diaphragm 12. The setting of reinforcement portion 11 can improve the toughness of vibrating diaphragm 12, and then has improved the vibration performance of vibrating diaphragm 12, and reinforcement portion 11 preferably adopts the combined material preparation, the utility model discloses do not do the restriction to concrete material, thickness of reinforcement portion 11 and relative vibrating diaphragm 12's size. The voice coil 13 includes leads, and the leads are symmetrically disposed on the voice coil 13 in this embodiment, so that the amount of polarization generated when the lead causes the diaphragm 12 to vibrate can be reduced.
Alternatively, the vibration system includes a center magnet 16, edge magnets 18, a center magnetic plate 15 disposed on the center magnet 16, edge magnetic plates 17 disposed on the edge magnets 18, and a yoke 19, the center magnet 16 and the edge magnets 18 being disposed on the yoke 19. The magnetic conducting plates comprise a central magnetic conducting plate 15 and edge magnetic conducting plates 16. In the present embodiment, the center magnet 16 has a rectangular shape, and four side magnets 18 are provided, which are respectively disposed at positions opposite to four sides of the center magnet 16, with the side magnets 18 being spaced from the center magnet 16 by a predetermined distance so as to form magnetic gaps.
Wherein, the lateral wall of yoke 19 and the lateral wall parallel and level of limit magnet 18, the magnetic action that gathers of reinforcing yoke 19, and then has promoted the magnetic field intensity that magnetic circuit provided to can improve the ampere force that receives of voice coil loudspeaker voice coil, improve vibration system's sensitivity, improve the free acoustic performance of sound generating mechanism.
Optionally, the side magnetic conductive plate 17 is fixed on the casing 14 by injection molding, so that the assembly precision of the magnetic circuit system when the magnetic circuit system is assembled on the casing is improved, and meanwhile, the connection strength of the magnetic circuit system and the casing 14 can also be improved. In another embodiment, the edge magnet 18 may be fixedly attached to the housing 14 by bonding, snapping, or the like.
Optionally, an avoiding portion 191 is formed at a position of the magnetic yoke 19 corresponding to the magnetic gap, so that the magnetic gap is communicated with the peripheral space of the single sounding device, air pressure in the magnetic gap can be balanced when the magnetic circuit system vibrates, heat generated when the magnetic circuit system works can be timely dissipated to the periphery of the single sounding device through the avoiding portion 191, and the single acoustic performance of the sounding device is improved. Specifically, as shown in fig. 2, the avoiding portion 191 is formed with two, and is located the position of two corners of the same side of the magnetic yoke 19 respectively, the utility model discloses do not limit the concrete position and the quantity of avoiding portion 191, technical personnel in the field can design as required. Alternatively, a through hole may be formed in the yoke 19 at a position corresponding to the magnetic gap, so that the magnetic gap communicates with the peripheral space of the sound generating device unit.
The utility model also provides a sound generating mechanism module, this sound generating mechanism module includes foretell sound generating mechanism monomer. The size of the rear cavity of the sound generating device module can correspond to the size of the sound generating device monomer, so that the relative magnetic circuit system of the vibration system is reduced. For example, the effective vibration area of the diaphragm in the single vibration system of the sound generating device is reduced according to the rear cavity of the sound generating device module, and the size of the magnetic circuit system is ensured to be unchanged, so that the side magnet forms an extension part relative to the diaphragm, namely the magnetic field intensity provided by the magnetic circuit system is kept unchanged, and therefore the vibration amplitude of the diaphragm can be increased; or, according to the width of limit magnet in the back chamber increase magnetic circuit of sound generating mechanism module in order to form the extension, improved the magnetic field intensity that magnetic circuit provided, under the unchangeable condition of vibration system parameter, can improve the magnetic field effort that the circular telegram coil received, and then can improve vibration system's sensitivity, improved the free acoustic performance of sound generating mechanism to the acoustic performance of sound generating mechanism module has been improved.
Optionally, the utility model provides a sound generating mechanism monomer is the speaker monomer, and the sound generating mechanism module is the speaker module.
Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. 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 invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A sound generating unit, comprising:
a housing;
the vibration system comprises a vibrating diaphragm, and the edge part of the vibrating diaphragm is fixed on the shell; and the number of the first and second groups,
the magnetic circuit system comprises a side magnet, and at least part of the shell is positioned between the vibrating diaphragm and the side magnet; wherein,
the edge magnet comprises an extension part protruding out of the outer edge of the edge part along the main body direction of the diaphragm.
2. The single sound emitting device according to claim 1, wherein the case is formed with a recess at a position opposite to the extension of the side magnet.
3. The single sound generating device according to claim 2, wherein said recess is a stepped structure.
4. The single sound generating device according to claim 3, wherein the edge portion of the diaphragm is fixed to the upper surface of the housing, and an outer edge of the edge portion is flush with the sidewall of the step structure.
5. The sound generating device as claimed in claim 1, wherein the outer side wall of the side magnet is flush with the outer side wall of the housing.
6. The single sound generating device according to claim 1, wherein the magnetic circuit system further includes a magnetic conductive plate, the magnetic conductive plate includes a side magnetic conductive plate, the side magnetic conductive plate is disposed on the side magnet, and at least a part of the side magnetic conductive plate is located between the housing and the side magnet.
7. The single sound generating device according to claim 6, wherein the edge magnetic plate is located on the edge magnet at a position opposite to the diaphragm.
8. The single sound generating device according to claim 1, wherein the magnetic circuit system further comprises a magnetic yoke, the side magnet is disposed on the magnetic yoke, and a side wall of the magnetic yoke is flush with an outer side wall of the side magnet.
9. The single sound generating device according to claim 1, wherein the magnetic circuit system further includes a central magnet, and four side magnets are provided, respectively, at positions opposite to four sides of the central magnet.
10. A sound generating device module comprising a sound generating device as a single unit as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821754347.5U CN208821056U (en) | 2018-10-26 | 2018-10-26 | A kind of sounding device monomer and sounding device mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821754347.5U CN208821056U (en) | 2018-10-26 | 2018-10-26 | A kind of sounding device monomer and sounding device mould group |
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| Publication Number | Publication Date |
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| CN208821056U true CN208821056U (en) | 2019-05-03 |
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| CN201821754347.5U Active CN208821056U (en) | 2018-10-26 | 2018-10-26 | A kind of sounding device monomer and sounding device mould group |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021093338A1 (en) * | 2019-11-12 | 2021-05-20 | 歌尔股份有限公司 | Miniature sound-generating device and electronic product |
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- 2018-10-26 CN CN201821754347.5U patent/CN208821056U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021093338A1 (en) * | 2019-11-12 | 2021-05-20 | 歌尔股份有限公司 | Miniature sound-generating device and electronic product |
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