CN106937223B - Mixed loudspeaker monomer and loudspeaker module - Google Patents
Mixed loudspeaker monomer and loudspeaker module Download PDFInfo
- Publication number
- CN106937223B CN106937223B CN201710192680.5A CN201710192680A CN106937223B CN 106937223 B CN106937223 B CN 106937223B CN 201710192680 A CN201710192680 A CN 201710192680A CN 106937223 B CN106937223 B CN 106937223B
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- diaphragm
- magnetic circuit
- hybrid
- loudspeaker
- coil
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Abstract
The invention discloses a hybrid loudspeaker monomer and a loudspeaker module. This monomer is including moving coil sound production unit and moving iron sound production unit, move coil sound production unit include vibration system and with the first magnetic circuit of vibration system complex, vibration system includes the vibrating diaphragm, first magnetic circuit includes T iron, the stem of T iron has and holds the chamber, move iron sound production unit and include second magnetic circuit, transfer line and diaphragm, second magnetic circuit is set up and is holding in the chamber, the one end and the second magnetic circuit of transfer line are connected and the other end and diaphragm are connected, the diaphragm is connected with the vibrating diaphragm. The loudspeaker module comprises the mixed loudspeaker monomer provided by the invention.
Description
Technical Field
The invention relates to the technical field of electroacoustic conversion, in particular to a hybrid loudspeaker monomer and a loudspeaker module using the same.
Background
Existing loudspeakers include moving coil loudspeakers and moving iron loudspeakers. The moving-coil loudspeaker comprises a magnetic circuit system and a vibration system. The magnetic circuit system comprises T iron or U iron, a permanent magnet, washer and the like. The vibration system includes a diaphragm, a voice coil, and a DOME. The moving-coil loudspeaker has good medium-frequency effect and low-frequency effect, but poor high-frequency effect.
The moving-iron type speaker also includes a magnetic circuit system and a vibration system. The magnetic circuit system comprises an armature, a coil, a permanent magnet, a magnetic yoke and the like, wherein the permanent magnet is connected with the magnetic yoke, and the armature penetrates through the coil and the permanent magnet. The armature is polarized by the alternating coil to produce a magnetic field that interacts with the permanent magnet to vibrate and sound. The moving-iron type loudspeaker has good high-frequency effect but poor medium-low frequency effect.
Therefore, it is necessary to provide a new scheme to improve the high, middle and low frequency effects of the speaker.
Disclosure of Invention
The invention aims to provide a new technical scheme of a hybrid loudspeaker monomer and a loudspeaker module.
According to a first aspect of the present invention, a hybrid speaker cell is provided. This monomer is including moving coil sound production unit and moving iron sound production unit, moving coil sound production unit include vibration system and with the first magnetic circuit of vibration system complex, vibration system includes the vibrating diaphragm, first magnetic circuit includes T iron, the stem of T iron has and holds the chamber, moving iron sound production unit includes second magnetic circuit, transfer line and diaphragm, second magnetic circuit is set up hold in the chamber, the one end of transfer line with second magnetic circuit connect and the other end with the diaphragm is connected, the diaphragm with the vibrating diaphragm is connected.
Optionally, the diaphragm includes a central portion and a folded ring portion disposed around the central portion, and the diaphragm is disposed in the central portion.
Optionally, the diaphragm is of a cambered surface structure.
Optionally, the diaphragm is circular, square or racetrack shaped.
Optionally, the diaphragm is integrally formed with the diaphragm.
Optionally, the diaphragm and the diaphragm are made of thermoplastic materials.
Optionally, the diaphragm is of an inwardly concave arc-shaped structure, and the corrugated portion of the diaphragm is of an inwardly concave type.
Optionally, the magnetic circuit board further comprises a PCB disposed on the T-bar, and the PCB is connected to the voice coil of the vibration system and the coil of the second magnetic circuit system.
According to another aspect of the present invention, a speaker module is provided. The module comprises the mixed loudspeaker monomer provided by the invention.
The inventor of the invention finds that in the prior art, the existing loudspeaker single bodies are all single magnetic path systems, and good high-frequency, medium-frequency and low-frequency effects cannot be simultaneously obtained. Therefore, the technical task to be achieved or the technical problems to be solved by the present invention are never thought or anticipated by those skilled in the art, and therefore the present invention is a new technical solution.
The single hybrid loudspeaker has two magnetic circuits which respectively drive the vibrating diaphragm and the diaphragm, and the frequency response range of the single hybrid loudspeaker is expanded.
In addition, a moving iron sounding unit is arranged in the moving coil generating unit. The diaphragm and the vibrating diaphragm are connected together, and the diaphragm and the second magnetic circuit system are connected through a transmission rod, and the transmission rod can support the diaphragm. By the mode, high-frequency segmentation vibration can be reduced, high-frequency ductility of the diaphragm and the diaphragm is improved, and high-frequency performance of the loudspeaker monomer is excellent.
In addition, the hybrid speaker unit has excellent low-frequency, medium-frequency and high-frequency performances because the hybrid speaker unit comprises the moving coil sound production unit and the moving iron sound production unit.
In addition, second magnetic circuit sets up in the chamber that holds of stem, and the diaphragm is connected with the vibrating diaphragm, so move indisputable sound producing unit and do not occupy the outside space of moving coil generating unit for this mixed speaker monomer is small, has complied with the development trend that electronic equipment is miniaturized, frivolous.
Other features of the present invention 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 this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is an exploded view of a hybrid speaker cell according to one embodiment of the present invention.
Fig. 2 is a cross-sectional view of a hybrid speaker cell according to one embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a hybrid speaker cell according to an embodiment of the present invention.
Description of reference numerals:
11: a membrane; 12: vibrating diaphragm; 13: a copper ring; 14: a voice coil; 15: a second magnetic circuit system; 16: washer; 17: a first permanent magnet; 18: t iron; 19: an accommodating chamber; 20: a side wall; 21: a PCB; 22: a coil; 23: a second permanent magnet; 24: a magnetic yoke; 25: a transmission rod; 26: an armature; 27: the dog-ear portion.
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: 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 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 invention, 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, further discussion thereof is not required in subsequent figures.
According to an embodiment of the present invention, there is provided a hybrid speaker cell. The single body comprises a moving coil sounding unit and a moving iron sounding unit. The moving coil sounding unit comprises a vibration system and a first magnetic circuit system matched with the vibration system. The vibration system comprises a diaphragm 12 and the first magnetic circuit comprises a T-bar 18.
In an embodiment of the invention, the stem of the T-iron 18 has a receiving cavity 19. The moving iron sound generating unit comprises a second magnetic circuit system 15, a transmission rod 25 and a diaphragm 11. The second magnetic circuit system 15 is arranged in the receiving chamber 19. The transmission rod 25 is connected at one end to the second magnetic circuit 15 and at the other end to the diaphragm 11. The diaphragm 11 is connected to a diaphragm 12. For example, they are located in the same plane, which facilitates the connection and the same vibration direction of the diaphragm 11 and the diaphragm 12, more uniform vibration and less polarization.
For example, in use, the main control chip of the electronic device is in electrical communication with the coil 22 and the voice coil 14 of the hybrid speaker cell. The two sound production units simultaneously vibrate and produce sound.
The single hybrid loudspeaker has two magnetic circuits which respectively drive the diaphragm 12 and the diaphragm 11, and the frequency response range of the single hybrid loudspeaker is expanded.
In addition, a moving iron sounding unit is arranged in the moving coil generating unit. The diaphragm 11 and the diaphragm 12 are connected together, and the diaphragm 11 and the second magnetic circuit system 15 are connected by a transmission rod 25, and the transmission rod 25 can support the diaphragm 11. By the mode, the high-frequency segmentation vibration of the diaphragm and the diaphragm can be reduced, the high-frequency ductility of the diaphragm 12 and the diaphragm 11 is improved, and the high-frequency performance of the loudspeaker single body is excellent.
In addition, the hybrid speaker unit has excellent low-frequency, medium-frequency and high-frequency performances because the hybrid speaker unit comprises the moving coil sound production unit and the moving iron sound production unit.
In addition, as shown in fig. 3, the second magnetic circuit system 15 is disposed in the accommodating cavity 19 of the stem, and the diaphragm 11 is connected to the diaphragm 12, so that the moving-iron sound generating unit does not occupy the space outside the moving-coil generating unit, so that the volume of the hybrid speaker unit is small, and the development trend of miniaturization and light weight of electronic equipment is complied with.
Fig. 1 is an exploded view of a hybrid speaker cell according to one embodiment of the present invention. Fig. 2 is a cross-sectional view of a hybrid speaker cell according to one embodiment of the present invention.
As shown in fig. 1-2, in this embodiment, the vibration system includes a voice coil 14 and a diaphragm 12. The diaphragm 12 is connected to the voice coil 14. For example, the diaphragm 12 may be a flat diaphragm 12 or a corrugated diaphragm 12. The diaphragm 12 is an edge diaphragm 12. The corrugated diaphragm 12 includes a central portion, a corrugated portion 27 provided around the central portion, and a fixing portion provided around the corrugated portion 27. The diaphragm 12 has the characteristics of large amplitude, wide frequency range and long service life.
Optionally, the diaphragm 12 is circular, square or racetrack shaped to accommodate speaker units of different shapes.
Of course, the diaphragm 12 may also be a planar diaphragm 12. The diaphragm 11 may be provided at any portion of the planar diaphragm 12 as required. Preferably, the diaphragm 11 is disposed at the center of the planar diaphragm 12 to ensure balance of vibration.
The first magnetic circuit system comprises a T iron 18, a first permanent magnet 17 and a washer 16. The first permanent magnet 17 is, for example, a ferrite magnet or a neodymium iron boron magnet. The T-iron 18 includes a stem and a base connected to the stem. The first permanent magnet 17 is a ring magnet and is disposed around the stem. The washer 16 is disposed on the first permanent magnet 17. Magnetic gaps are formed between the core column and the first permanent magnet 17 and between the washer 16 and the first permanent magnet 17.
In this embodiment, the fixed part of the diaphragm 12 is connected to a copper ring 13, the copper ring 13 being arranged on a first permanent magnet 17. The copper ring 13 acts as a support to suspend the vibration system above the magnetic circuit system. The voice coil 14 is inserted into the magnetic gap.
For example, a receiving cavity 19 is enclosed by the side wall 20 of the stem and the base. The second magnetic circuit system 15 is arranged in the accommodating cavity 19. The second magnetic circuit system 15 includes a second permanent magnet 23, a coil 22, a yoke 24, and an armature 26. The second permanent magnet 23 is a ferrite magnet or a neodymium iron boron magnet.
For example, the yoke 24 has a ring shape, and the yoke 24 is fixed to the base. The second permanent magnet 23 includes two bar magnets disposed oppositely. Two bar magnets are disposed in the yoke 24 to form a uniform magnetic field therebetween. The coil 22 is disposed on the substrate in parallel with the yoke 24 with a gap between the coil 22 and the yoke 24.
For example, armature 26 is L shaped, the end of one side of armature 26 is fixed to the base such that the other side is suspended in the receiving cavity 19, the suspended side passes through the inside of coil 22 to the magnetic field, armature 26 is a magnetically permeable material such as SUS-430, etc.
One end of the transmission rod 25 is connected to the suspended edge. For example, the driving rod 25 is passed out from the gap between the coil 22 and the yoke 24, and the other end is connected to the diaphragm 11.
In operation, the coil 22 is energized with an alternating current to generate an alternating magnetic field therein, which magnetizes the armature 26. The magnetized armature 26 vibrates in the magnetic field. The armature 26 causes the transmission rod 25 to vibrate. The transmission rod 25 drives the diaphragm 11 to vibrate to generate sound.
In one example, the diaphragm 11 is disposed in the center portion. This makes it possible to equalize the vibrations of the diaphragm 12 and the diaphragm 11. The membrane 11 is bonded to the central portion, for example, by an adhesive.
Preferably, the diaphragm 11 is integrally formed with the diaphragm 12. For example, the diaphragm 11 and the diaphragm 12 are integrally injection-molded by injection molding. In this way, the connection strength and the structural strength of the diaphragm 11 and the diaphragm 12 are higher, and the division vibration of the diaphragm 11 is further reduced. In addition, the diaphragm 11 and the vibrating diaphragm 12 have better compliance and good vibrating effect.
Optionally, the diaphragm 12 and the diaphragm 11 are made of thermoplastic material. For example, such materials may be, but are not limited to, Thermoplastic polyurethane Elastomer (TPU) film layers, Polyetheretherketone (PEEK) film layers, Thermoplastic Elastomer (TPE) film layers, Polypropylene material film layers (PP), synthetic fiber material film layers, and the like.
In one example, the diaphragm 11 is a cambered surface structure. The cambered surface structure has higher elasticity and higher structural strength. Thus, the high-frequency effect of the single hybrid loudspeaker is better.
Preferably, the diaphragm 11 has an inwardly concave arc structure, i.e. the arc is close to the second magnetic circuit system 15 when mounting. Thus, when water drops fall on the diaphragm 11, the diaphragm 11 is not deformed by the pressure of the water drops, and a good vibration effect can be maintained. This structure is more suitable for a waterproof type speaker.
Further, the corrugated portion 27 of the diaphragm 12 is inwardly concave, i.e. the corrugated portion 27 is close to the first magnetic circuit system when mounted. Thus, when water drops fall on the edge, the edge portion 27 is not deformed by the water drops, and a good vibration effect can be maintained. This structure is more suitable for a waterproof type speaker.
In one example, the hybrid speaker cell also includes a PCB21(Printed circuit board) disposed on the T-bar 18. The PCB21 is connected to the voice coil 14 of the vibration system and the coil 22 of the second magnetic circuit system 15. For example, as shown in fig. 2, the PCB21 is disposed outside of the base of the T-bar 18 to save internal space. The leads of the voice coil 14 and the coil 22 are connected to the PCB 21. The PCB21 is connected with a main control chip of the electronic device. Through the setting mode, can make the signal connection of mixing speaker monomer more stable.
According to another embodiment of the present invention, a speaker module is provided. The loudspeaker module comprises the mixed loudspeaker monomer provided by the invention.
For example, a speaker module includes a housing. The interior of the housing has a cavity. The hybrid speaker unit is disposed within the cavity to divide the cavity into a front acoustic chamber and a rear acoustic chamber. The rear acoustic cavity is used to adjust the low frequency effect. The diaphragm 12 and the forward facing acoustic cavity of the diaphragm 11. The housing also has a sound outlet. The sound outlet is used for communicating the front sound cavity with the external space.
The loudspeaker module has good low-frequency, medium-frequency and high-frequency effects and a wide frequency response range.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present 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 (8)
1. The utility model provides a hybrid speaker monomer, its characterized in that, includes moving coil sound production unit and moving iron sound production unit, moving coil sound production unit include vibration system and with the first magnetic circuit of vibration system complex, vibration system includes vibrating diaphragm (12), first magnetic circuit includes T indisputable (18), the stem of T indisputable (18) has holds chamber (19), moving iron sound production unit includes second magnetic circuit (15), transfer line and diaphragm (11), second magnetic circuit (15) are set up hold in chamber (19), the one end of transfer line (25) with second magnetic circuit (15) are connected and the other end with diaphragm (11) are connected, diaphragm (11) with vibrating diaphragm (12) are connected with integrated into one piece.
2. The hybrid loudspeaker cell of claim 1, wherein the diaphragm (12) comprises a central portion and a flexure (27) disposed around the central portion, the diaphragm (11) being disposed in the central portion.
3. The hybrid loudspeaker unit according to claim 2, wherein the membrane (11) is of a cambered structure.
4. The hybrid loudspeaker cell of claim 1, wherein the diaphragm (12) is circular, square or racetrack shaped.
5. The hybrid loudspeaker unit according to claim 1, wherein the diaphragm (12) and the membrane (11) are made of a thermoplastic material.
6. A hybrid loudspeaker unit as claimed in claim 3, wherein the diaphragm (11) is of inwardly concave cambered configuration and the corrugated portion (27) of the diaphragm (12) is of inwardly concave configuration.
7. The hybrid speaker cell as claimed in claim 1, further comprising a PCB (21) disposed on the T-iron (18), the PCB (21) being connected to the voice coil (14) of the vibration system and the coil (22) of the second magnetic circuit system (15).
8. A speaker module comprising the hybrid speaker cell of any one of claims 1-7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710192680.5A CN106937223B (en) | 2017-03-28 | 2017-03-28 | Mixed loudspeaker monomer and loudspeaker module |
| PCT/CN2017/089570 WO2018176660A1 (en) | 2017-03-28 | 2017-06-22 | Hybrid loudspeaker monomer and loudspeaker module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710192680.5A CN106937223B (en) | 2017-03-28 | 2017-03-28 | Mixed loudspeaker monomer and loudspeaker module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106937223A CN106937223A (en) | 2017-07-07 |
| CN106937223B true CN106937223B (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710192680.5A Active CN106937223B (en) | 2017-03-28 | 2017-03-28 | Mixed loudspeaker monomer and loudspeaker module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106937223B (en) |
| WO (1) | WO2018176660A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108156563A (en) * | 2018-02-05 | 2018-06-12 | 深圳市排行榜科技有限公司 | A kind of loud speaker for driving vibrating diaphragm sounding simultaneously by coil and the iron that shakes |
| CN211531284U (en) * | 2020-03-05 | 2020-09-18 | 瑞声科技(新加坡)有限公司 | Sound production device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6647124B1 (en) * | 2002-05-06 | 2003-11-11 | Meiloon Industrial Co., Ltd. | Loudspeaker with coaxial magnetic circuit for high-pitch sound and low-pitch sound |
| CN101998216A (en) * | 2009-08-28 | 2011-03-30 | 友泰讯科(北京)科技有限公司 | Loudspeaker and portable electronic device |
| CN201682603U (en) * | 2010-05-25 | 2010-12-22 | 全南三扬电子有限公司 | Earphone |
| CN203378015U (en) * | 2012-12-13 | 2014-01-01 | 捷音特科技股份有限公司 | Double-frequency coaxial earphone |
| CN104066039A (en) * | 2014-07-10 | 2014-09-24 | 东莞达电电子有限公司 | Earplug-type moving coil and moving iron mixed earphone |
| CN205622799U (en) * | 2016-03-24 | 2016-10-05 | 广东佳禾声学科技有限公司 | Indisputable formula earphone of circle |
-
2017
- 2017-03-28 CN CN201710192680.5A patent/CN106937223B/en active Active
- 2017-06-22 WO PCT/CN2017/089570 patent/WO2018176660A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018176660A1 (en) | 2018-10-04 |
| CN106937223A (en) | 2017-07-07 |
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