WO2018170944A1 - Integrated magnet and voice coil assembly and moving magnet-type loudspeaker provided with same - Google Patents
Integrated magnet and voice coil assembly and moving magnet-type loudspeaker provided with same Download PDFInfo
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- WO2018170944A1 WO2018170944A1 PCT/CN2017/078756 CN2017078756W WO2018170944A1 WO 2018170944 A1 WO2018170944 A1 WO 2018170944A1 CN 2017078756 W CN2017078756 W CN 2017078756W WO 2018170944 A1 WO2018170944 A1 WO 2018170944A1
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- magnet
- voice coil
- integrated
- coil assembly
- bonded magnet
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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
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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
- H04R9/02—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
Definitions
- the invention relates to the technical field of electroacoustic products, in particular to an integrated magnet voice coil assembly and a moving magnetic speaker provided with the same.
- Speakers are important acoustic components of portable electronic devices that are used to convert electrical and acoustic signals and are an energy conversion device.
- the installation is differentiated according to the working principle, and the speaker includes a moving magnetic speaker.
- the moving magnetic speaker works like a moving iron speaker, energizing the voice coil to form an electromagnet, and the electromagnet interacts with the permanent magnet to vibrate.
- the current approach is to insert a permanent magnet into the voice coil.
- the existing method has a large requirement on the magnetic strength and size of the permanent magnet, and it takes a lot of time to verify, which affects the production efficiency.
- the first technical problem to be solved by the present invention is to provide an integrated magnet voice coil assembly, which is injection molded to mold a bonded magnet in the middle of a voice coil, by adjusting the resin and magnetic fluid of the bonded magnet.
- the matching ratio and the shape of the magnet easily realize the adjustment of the magnetic force of the bonded magnet.
- the technical solution of the present invention is:
- An integrated magnet voice coil assembly comprising a voice coil provided with a center hole and a bonded magnet integrally molded with the voice coil; the voice coil is pre-formed; the bonded magnets are mixed together The resin and the magnetic fluid are integrated with the voice coil by an injection molding process, and the bonded magnet is magnetized after injection molding.
- the bonded magnet includes a columnar portion and a plate portion which are integrated, the columnar portion is located in a central hole of the voice coil, and the plate portion covers one side surface of the voice coil on.
- the columnar portion and the plate portion are both in shape with a central hole of the voice coil. Consistent.
- the bonded magnet fills the central hole of the voice coil in whole or in part in the vertical direction.
- the concentration ratio of the resin and the magnetic fluid is adapted to the magnetic force of the bonded magnet.
- the bonded magnet is magnetized in the vertical direction.
- the second technical problem to be solved by the present invention is to provide a moving magnetic speaker, the voice coil used in the moving magnetic speaker, the assembly process is simplified, and the assembly precision is high, so that the diaphragm is The balanced position is easier to control and has good speaker performance.
- the technical solution of the present invention is:
- a moving magnetic speaker includes a casing, wherein the casing houses a diaphragm and a vibrator disposed in parallel with the diaphragm, the vibrator includes the integrated magnet voice coil assembly; the diaphragm is adjacent to the a driving magnet is fixed on one side of the vibrator, and a motor magnet is further disposed on a side of the vibrator near the diaphragm; the driving magnet is disposed opposite to a center of the integrated magnet voice coil assembly; the driving magnet and the driving magnet The magnetization directions of the motor magnets are all vertical.
- the integrated magnet voice coil assembly is fixed on the basin frame, and the two ends of the basin frame are respectively fixed with elastic supporting members; the elastic supporting members have elastic deformation spaces in the horizontal direction.
- the driving magnet is provided with two pieces, and the integrated magnet voice coil assembly is provided with two.
- the basin frame between the two integrated magnet voice coil assemblies is provided with a pair of magnets, the motor magnets are disposed corresponding to the pair of magnets, and the motor magnets and the pair
- the magnetization directions of the magnets are both vertical and the magnetization directions are opposite; the energization currents of the two integrated magnet voice coil assemblies are opposite, and the magnetization directions of the two drive magnets are opposite.
- each of the two sides of the integrated magnet voice coil assembly is provided with a magnetically conductive member, and the two magnetic conductive members are identical in structure and disposed opposite to each other, and the structure of the magnetic conductive member and the integrated structure The structure of the magnet voice coil assembly is adapted.
- the housing includes a front cover and an outer casing that are coupled together; the diaphragm is fixed on the front cover, and a sound hole is disposed in a middle portion of the front cover; the vibrator is mounted on the On the outer casing, The other end of the elastic support member is fixedly coupled to the outer casing.
- the elastic support member is a spring piece
- the elastic piece includes two elastic arms, and the two elastic arms are integrally connected at the same side end, and the elastic arm is made of a flat structure wire, and The width of the wires in the vertical direction is greater than the width in the lateral direction; the ends of the two unconnected elastic arms are fixedly connected to the basin frame and the outer casing, respectively.
- the basin frame comprises a rectangular bottom portion, and each of the four corner portions of the bottom portion is provided with a mounting portion perpendicular to the bottom portion and extending upward, and the elastic piece is fixedly coupled with the corresponding mounting portion.
- the beneficial effects of the present invention are: due to the integrated magnet voice coil assembly of the present invention and the moving magnetic speaker provided with the assembly, wherein the integrated magnet voice coil assembly includes a voice coil provided with a center hole and a bonded magnet integrally molded with a voice coil; the voice coil is pre-wound; the bonded magnet is combined with the voice coil by a mixed resin and magnetic fluid, and the bonded magnet is magnetized after injection molding. . Since the present invention injection molding the bonded magnet in the middle of the voice coil, the magnetic force of the bonded magnet can be conveniently realized by adjusting the ratio of the resin to the magnetic fluid and the shape of the magnet.
- the bonded magnet can be easily adjusted by balancing the magnetic force of the diaphragm, so that the speaker can well control the balance position of the diaphragm and make it have a good position. Speaker performance. At the same time, the assembly precision and material precision are greatly improved, and the assembly process is simplified.
- the height of the bonded magnet in the center of the voice coil can be adjusted according to the required magnetic force in the injection molding stage.
- the ratio of the resin to the magnetic fluid can be adjusted according to the required magnetic force at the injection molding stage.
- the integrated magnet voice coil assembly of the present invention solves the problem of selecting an appropriate extra magnet when inserting an extra magnet in the middle of the voice coil in order to balance the attraction force and the repulsive force in the prior art.
- the technical problem of the integrated magnet voice coil assembly of the present invention is that the resin and the magnetic fluid are injection molded in the middle of the voice coil by means of integral injection molding, so that the bonded magnet after molding Height, magnetic force, etc. can be easily controlled, thereby improving assembly accuracy and simplifying the assembly process.
- FIG. 1 is a schematic structural view of an integrated magnet voice coil assembly of the present invention when injection molded
- FIG. 2 is a schematic structural view of the integrated magnet voice coil assembly of the present invention when the height of the bonded magnet is low;
- FIG. 3 is a schematic structural view showing a bonding magnet of the integrated magnet voice coil assembly of the present invention having a large concentration ratio
- Figure 4 is a cross-sectional structural view showing a moving magnetic speaker in the embodiment
- Fig. 5 is a schematic exploded view showing the structure of the moving magnetic speaker of the embodiment.
- 1 injection tooling, 10-shell, 12—front cover, 120—sound hole, 20—vibration plate, 22—folded ring, 24-drive magnet, 26—motor magnet, 28—folded ring, 30— Basin frame, 300-mounting part, 32-magnetic conductive part, 34-voice coil, 36-bonded magnet, 360-column part, 361-plate part, 38-pair magnetic magnet, 39-spring piece, 42-arrow.
- an integrated magnet voice coil assembly includes a voice coil 34 provided with a center hole, and a bonded magnet 36 integrally molded with the voice coil 34; the voice coil 34 is pre-wound
- the bonded magnet 36 and the voice coil 34 are integrated by an injection molding process; the bonded magnet 36 is integrally combined with the voice coil 34 by an injection molding process, and the bonded magnet 36 is injection molded. After magnetization.
- the bonded magnet 36 of the present embodiment includes a columnar portion 360 and a plate portion 361 which are integrally coupled, and the columnar portion 360 is located in the center hole of the voice coil 34, and the plate portion 361 Covered on one side surface of the voice coil 34. And the cylindrical portion 360 conforms to the shape of the center hole of the voice coil 34, which further simplifies the assembly process.
- the wound voice coil 34 is placed in the injection molding tool 1.
- the voice coil 34 of the present embodiment has a flat structure, and the shape of the injection molding tool 1 and the integrated magnet are shown.
- Voice coil The voice coil 34 of the assembly is shaped to fit. After the voice coil 34 is placed flat, a mixed solution of a resin and a magnetic liquid is injected from the center thereof (indicated by an arrow 42 in Fig. 1) toward the center of the voice coil 34. According to the required magnetic force of the bonded magnet, a mixed solution of a corresponding height is vertically injected at the center of the voice coil 34, and after the injection molding is completed, the height of the bonded magnet 36 reaches a desired height.
- 1 shows the case where the height of the bonded magnet 36 is flush with the voice coil 34
- FIG. 2 shows the case where the height of the bonded magnet 36 is lower than that of the voice coil 34.
- the magnetic force of the bonded magnet 36 can be adjusted by adjusting the concentration ratio of the resin and the magnetic fluid. After adjusting the ratio before injection molding, the bonded magnet 36 is injected into the center of the voice coil 34, Get the magnetic force you need. Also, the adjustment of the magnetic force of the bonded magnet 36 is very convenient, which simplifies the assembly process.
- Fig. 3 shows the case where the compounding concentration of the bonded magnet 36 is larger than that in Figs. 1 and 2.
- the bonded magnet 36 of the present embodiment is magnetized in the vertical direction.
- a moving magnetic speaker includes a casing, and a diaphragm is disposed in the casing and a vibrator disposed in parallel with the diaphragm.
- the vibrator includes the integrated magnet voice coil assembly; the diaphragm is adjacent to the vibrator.
- a driving magnet 24 is fixed on one side thereof, and a motor magnet 26 is disposed on a side of the vibrator near the diaphragm; the driving magnet 24 is disposed opposite to the center of the integrated magnet voice coil assembly; the magnetization directions of the driving magnet 24 and the motor magnet 26 are vertical to.
- the moving magnetic speaker of the embodiment has a rectangular parallelepiped structure, and the casing comprises a front cover 12 and an outer casing 10 which are vertically joined together, the front cover 12 is a box-like structure in which the lower end is open, and the outer casing 10 is a box-like structure in which the upper end is open.
- the open end of the front cover 12 is fastened to the open end of the outer casing 10.
- the diaphragm is fixed on the front cover 12, and the sound hole 120 is disposed in the middle of the front cover 12.
- the vibrator is suspended in the space surrounded by the front cover 12 and the outer casing 10 by two elastic pieces 39, and the two elastic pieces 39 are fixedly connected with the outer casing 10.
- the drive magnet 24 and the motor magnet 26 are fixed to the middle portion of the diaphragm near the side of the vibrator, and the magnetization directions of the drive magnet 24 and the motor magnet 26 are both vertical.
- the diaphragm includes a folding ring 22 at the edge and a vibration plate 20 fixed in the middle of the folding ring 22.
- the driving magnet 24 and the motor magnet 26 are both fixed on the vibration plate 20, and the upper side of the edge portion of the folding ring 22 is fixed.
- the vibrator includes an integral magnet voice coil assembly, and the voice coil 34 of the integrated magnet voice coil assembly has a flat structure and is horizontally fixed.
- the two elastic pieces 39 are fixedly connected to the two ends of the basin frame 30, and one end of the elastic piece 39 is fixedly connected with the basin frame 30, and the other end of the elastic piece 39 is fixedly connected with the outer casing 10, thereby suspending the vibrator.
- the front cover 12 and the outer casing 10 enclose a space.
- the driving magnet 24 is provided with two pieces, the motor magnet 26 is located between the two driving magnets 24, and the integrated magnet voice coil assembly is also provided with two, respectively, and two driving.
- the magnets 24 are disposed correspondingly, and the magnetization directions of the two driving magnets 24 are opposite, and the direction of the energizing current of the voice coil 34 of the two integrated magnet voice coil assemblies is also opposite.
- the two drive magnets 24 respectively correspond to the centers of the voice coils 34 of the two integrated magnet voice coil assemblies, and the motor magnets 26 simultaneously correspond to the side closer to the two voice coils 34.
- the bonded magnets 36 of the integrated magnet voice coil assembly of the present embodiment are respectively disposed opposite to the two driving magnets 24, and the two bonded magnets 36 are respectively according to the direction of current passing through the corresponding voice coil 34.
- the two integrated magnet voice coil assemblies form two electromagnets.
- a magnetically permeable member 32 is disposed on each side of the two integral magnetized voice coil assemblies that are away from the voice coil 34.
- the two magnetically permeable members 32 are identical in structure and disposed opposite each other.
- the structure of the magnetically permeable member 32 is adapted to the structure of the voice coil 34 on the side of the center line, that is, the magnetically permeable member 32 is adapted to the structure of the half voice coil 34, which covers only half of the side of the voice coil 34. And half of the upper part, can gather the magnetic field to the center to reduce magnetic leakage.
- the plate-like portion 361 of the bonded magnet 36 of the present embodiment is disposed in alignment with the magnetic conductive member 32, that is, the plate-like portion 361 of the bonded magnet 36 of the integrated magnet voice coil unit of the present embodiment is disposed toward the drive magnet side.
- a further preferred vibrator of the present embodiment further includes a pair of magnetic magnets 38 disposed between the voice coils 34 of the two integrated magnet voice coil assemblies, and the pair of magnets 38 are also fixed to the basin frame 30.
- the magnetization direction of the magnet magnet 38 is also vertical, and the magnetization direction of the magnet magnet 38 is opposite to the magnetization direction of the motor magnet 26, as shown in FIG.
- the size of the motor magnet 26 in the vibration direction of the vibrator is larger than the size of the magnet magnet 38 in the vibration direction of the vibrator, and corresponds to the center position of the magnet magnet 38 and the motor magnet 26.
- the basin frame 30 includes a rectangular bottom portion, and the four corner portions of the bottom portion are each provided with a mounting portion 300 that is perpendicular to the bottom portion and extends upward. Both the integrated magnet voice coil assembly and the pair of magnets 38 are fixed to the bottom of the basin frame 30, and the ends of the elastic pieces 39 are fixed to the mounting portion 300.
- the two elastic pieces 39 have the same structure.
- the elastic piece 39 comprises two elastic arms, both of which are made of a flat-structured wire, and the width of the wire in the vertical direction is greater than the width in the lateral direction, and the two elastic arms are connected at the same end.
- the angle between the two elastic arms is an angle.
- the angle is an acute angle
- the ends of the two elastic arms that are not connected are respectively fixedly connected to the mounting portion 300 of the basin frame 30 and the outer casing 10
- the basin is The connection points between the frame 30 and the outer casing 10 are located on the same side of the transverse centerline of the vibrator.
- the two elastic pieces 39 are symmetrically arranged with respect to the diagonal of the vibrator, that is, the two elastic pieces 39 are respectively fixedly and fixedly connected to the two mounting portions 300 on the same diagonal line of the bottom of the basin frame 30.
- the working principle of the speaker of the present invention is as follows: when the voice coil 34 passes the alternating audio current, the voice coil 34 and the bonded magnet 36 become electromagnets, generating a vertical magnetic field. The magnetic field interacts with the driving magnet 24. Since the integrated magnet voice coil assembly is fixed in the vertical direction, the driving magnet vibrates up and down, and the diaphragm vibrates up and down along with the driving magnet 24, thereby inducing the air to sound. The function of the speaker. When the voice coil passes the alternating motor current, the magnetic line of the motor magnet cuts the energized voice coil, and the voice coil is subjected to the Lorentz force to generate an X-direction motion, thereby realizing the vibration function of the motor.
- the moving magnet speaker of the present invention is injection molded, the bonded magnet 36 is molded in the center of the voice coil 34, instead of inserting an extra magnet into the center of the voice coil 34.
- the magnetic force adjustment of the bonded magnet 36 can be realized by adjusting the ratio of the resin and the magnetic fluid in the injection molding stage, and the height of the injection molding, thereby greatly improving the assembly precision and the material precision, and simplifying the assembly process.
- the moving magnetic speaker of the present invention conveniently controls the balance position of the diaphragm and has good speaker performance.
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Abstract
Disclosed are an integrated magnet and voice coil assembly and a moving magnet-type loudspeaker provided with the assembly, wherein the magnet and voice coil assembly comprises a voice coil provided with a central hole and a bonded magnet integrally injection-moulded with the voice coil, wherein the voice coil is formed in a pre-wound mode; the bonded magnet is integrated with the voice coil by resin and magnetic liquid which are mixed together by means of an injection moulding process; and the bonded magnet is magnetized after being formed by injection moulding. In the present invention, the bonded magnet is injection moulded in the voice coil by means of injection moulding, so that the magnetic force of the bonded magnet can be conveniently achieved by adjusting the proportioning of the resin and the magnetic liquid, and the shape of the magnet. After the magnet and voice coil assembly of the present invention is used for the moving magnet-type loudspeaker, the magnetic force of the bonded magnet for balancing a vibrating diaphragm can be conveniently adjusted, so that the loudspeaker can better control the balance position of the vibrating diaphragm so as to make same provided with a good loudspeaker performance. At the same time, the assembly accuracy and material accuracy can be greatly improved, so that the process, such as assembling, is simplified.
Description
本发明涉及电声产品技术领域，尤其涉及一体式磁铁音圈组件及设有该组件的动磁式扬声器。The invention relates to the technical field of electroacoustic products, in particular to an integrated magnet voice coil assembly and a moving magnetic speaker provided with the same.
扬声器是便携式电子设备的重要声学部件，用于完成电信号与声音信号之间的转换，是一种能量转换器件。安装按照工作原理区分，扬声器包括动磁式扬声器。动磁式扬声器的工作原理类似于动铁式扬声器，给音圈通电形成电磁铁，电磁铁与永磁体相互作用振动发声。当需要额外磁铁平衡磁性时，目前所采用的方式是在音圈中***一块永磁体。但是现有的方式对永磁体的磁性强度和尺寸有较大的要求，需要花费大量的时间进行验证，影响了生产效率。Speakers are important acoustic components of portable electronic devices that are used to convert electrical and acoustic signals and are an energy conversion device. The installation is differentiated according to the working principle, and the speaker includes a moving magnetic speaker. The moving magnetic speaker works like a moving iron speaker, energizing the voice coil to form an electromagnet, and the electromagnet interacts with the permanent magnet to vibrate. When additional magnets are needed to balance magnetism, the current approach is to insert a permanent magnet into the voice coil. However, the existing method has a large requirement on the magnetic strength and size of the permanent magnet, and it takes a lot of time to verify, which affects the production efficiency.
发明内容Summary of the invention
针对上述不足，本发明所要解决的第一个技术问题是：提供一种一体式磁铁音圈组件，采用注塑的方式将粘结磁铁注塑在音圈中间，通过调整粘结磁铁的树脂和磁液的配比以及磁铁的形状，容易的实现了粘结磁铁磁力的调整。In view of the above deficiencies, the first technical problem to be solved by the present invention is to provide an integrated magnet voice coil assembly, which is injection molded to mold a bonded magnet in the middle of a voice coil, by adjusting the resin and magnetic fluid of the bonded magnet. The matching ratio and the shape of the magnet easily realize the adjustment of the magnetic force of the bonded magnet.
为解决上述技术问题，本发明的技术方案是：In order to solve the above technical problem, the technical solution of the present invention is:
一种一体式磁铁音圈组件，包括设置有中心孔的音圈以及与所述音圈一体注塑成型的粘结磁铁；所述音圈预先绕制成型；所述粘结磁铁由混合在一起的树脂和磁液通过注塑工艺与所述音圈结合为一体，且所述粘结磁铁注塑成型后充磁。An integrated magnet voice coil assembly comprising a voice coil provided with a center hole and a bonded magnet integrally molded with the voice coil; the voice coil is pre-formed; the bonded magnets are mixed together The resin and the magnetic fluid are integrated with the voice coil by an injection molding process, and the bonded magnet is magnetized after injection molding.
优选方式为，所述粘结磁铁包括结合为一体的柱状部及板状部，所述柱状部位于所述音圈的中心孔内，所述板状部覆盖在所述音圈的一侧表面上。Preferably, the bonded magnet includes a columnar portion and a plate portion which are integrated, the columnar portion is located in a central hole of the voice coil, and the plate portion covers one side surface of the voice coil on.
优选方式为，所述柱状部与所述板状部均与所述音圈的中心孔的形状相
一致。Preferably, the columnar portion and the plate portion are both in shape with a central hole of the voice coil.
Consistent.
优选方式为，所述粘结磁铁在竖向上全部或部分填满所述音圈的中心孔。Preferably, the bonded magnet fills the central hole of the voice coil in whole or in part in the vertical direction.
优选方式为，所述树脂和所述磁液的配比浓度与所述粘结磁铁的磁力相适配。Preferably, the concentration ratio of the resin and the magnetic fluid is adapted to the magnetic force of the bonded magnet.
优选方式为，所述粘结磁铁沿竖直方向充磁。Preferably, the bonded magnet is magnetized in the vertical direction.
基于同一发明构思，本发明所要解决的第二个技术问题是：提供一种动磁式扬声器，该动磁式扬声器所采用的音圈，其装配工艺简化，而且装配精度高，使振膜的平衡位置更加容易控制，具有良好的扬声器性能。Based on the same inventive concept, the second technical problem to be solved by the present invention is to provide a moving magnetic speaker, the voice coil used in the moving magnetic speaker, the assembly process is simplified, and the assembly precision is high, so that the diaphragm is The balanced position is easier to control and has good speaker performance.
为解决上述技术问题，本发明的技术方案是：In order to solve the above technical problem, the technical solution of the present invention is:
一种动磁式扬声器，包括壳体，所述壳体内收容有振膜及与所述振膜平行设置的振子，所述振子包括上述的一体式磁铁音圈组件；所述振膜靠近所述振子的一侧固定有驱动磁铁，所述振子靠近所述振膜的一侧还设有马达磁铁；所述驱动磁铁与所述一体式磁铁音圈组件的中心相对设置；所述驱动磁铁和所述马达磁铁的磁化方向均为竖向。A moving magnetic speaker includes a casing, wherein the casing houses a diaphragm and a vibrator disposed in parallel with the diaphragm, the vibrator includes the integrated magnet voice coil assembly; the diaphragm is adjacent to the a driving magnet is fixed on one side of the vibrator, and a motor magnet is further disposed on a side of the vibrator near the diaphragm; the driving magnet is disposed opposite to a center of the integrated magnet voice coil assembly; the driving magnet and the driving magnet The magnetization directions of the motor magnets are all vertical.
优选方式为，所述一体式磁铁音圈组件固定于盆架上，所述盆架的两端分别固定有弹性支撑件；所述弹性支撑件具有沿水平方向的弹性形变空间。Preferably, the integrated magnet voice coil assembly is fixed on the basin frame, and the two ends of the basin frame are respectively fixed with elastic supporting members; the elastic supporting members have elastic deformation spaces in the horizontal direction.
优选方式为，所述驱动磁铁设有两块，所述一体式磁铁音圈组件设有两个。Preferably, the driving magnet is provided with two pieces, and the integrated magnet voice coil assembly is provided with two.
优选方式为，位于两所述一体式磁铁音圈组件之间的所述盆架上设有对磁磁铁，所述马达磁铁与所述对磁磁铁相对应设置，所述马达磁铁与所述对磁磁铁的充磁方向均为竖向且二者充磁方向相反；两所述一体式磁铁音圈组件的通电电流方向相反，两所述驱动磁铁的充磁方向相反。Preferably, the basin frame between the two integrated magnet voice coil assemblies is provided with a pair of magnets, the motor magnets are disposed corresponding to the pair of magnets, and the motor magnets and the pair The magnetization directions of the magnets are both vertical and the magnetization directions are opposite; the energization currents of the two integrated magnet voice coil assemblies are opposite, and the magnetization directions of the two drive magnets are opposite.
优选方式为，两所述一体式磁铁音圈组件相远离的一侧各罩设有一导磁部件，两所述导磁部件结构相同且相对设置，所述导磁部件的结构与所述一体式磁铁音圈组件的结构相适配。Preferably, each of the two sides of the integrated magnet voice coil assembly is provided with a magnetically conductive member, and the two magnetic conductive members are identical in structure and disposed opposite to each other, and the structure of the magnetic conductive member and the integrated structure The structure of the magnet voice coil assembly is adapted.
优选方式为，所述壳体包括上下结合在一起的前盖和外壳；所述振膜固定在所述前盖上，所述前盖的中部设有出声孔；所述振子安装在所述外壳上，
所述弹性支撑件的另一端与所述外壳固定连接。Preferably, the housing includes a front cover and an outer casing that are coupled together; the diaphragm is fixed on the front cover, and a sound hole is disposed in a middle portion of the front cover; the vibrator is mounted on the On the outer casing,
The other end of the elastic support member is fixedly coupled to the outer casing.
优选方式为，所述弹性支撑件为弹片，所述弹片包括两条弹性臂，两条所述弹性臂位于同侧的端部连接为一体，所述弹性臂由扁平结构的线材制成，且所述线材在竖向上的宽度均大于其在横向上的宽度；两条所述弹性臂未相连接的端部分别与所述盆架和所述外壳固定连接。Preferably, the elastic support member is a spring piece, and the elastic piece includes two elastic arms, and the two elastic arms are integrally connected at the same side end, and the elastic arm is made of a flat structure wire, and The width of the wires in the vertical direction is greater than the width in the lateral direction; the ends of the two unconnected elastic arms are fixedly connected to the basin frame and the outer casing, respectively.
优选方式为，所述盆架包括矩形的底部，底部的四个角部各设有一与底部相垂直且向上延伸的安装部，且所述弹片与对应的所述安装部固定连接在一起Preferably, the basin frame comprises a rectangular bottom portion, and each of the four corner portions of the bottom portion is provided with a mounting portion perpendicular to the bottom portion and extending upward, and the elastic piece is fixedly coupled with the corresponding mounting portion.
采用上述技术方案后，本发明的有益效果是：由于本发明的一体式磁铁音圈组件及设有该组件的动磁式扬声器，其中一体式磁铁音圈组件包括设置有中心孔的音圈以及与音圈一体注塑成型的粘结磁铁；音圈预先绕制成型；粘结磁铁由混合在一起的树脂和磁液通过注塑工艺与音圈结合为一体，且粘结磁铁注塑成型后充磁。因本发明采用注塑的方式将粘结磁铁注塑在音圈的中间，使粘结磁铁的磁力，可通过调整树脂和磁液的配比以及磁铁的形状来方便的实现。将本发明的一体式磁铁音圈组件用于动磁式扬声器后，因粘结磁铁用于平衡振膜的磁力可方便的调整，使扬声器能够很好的控制振膜平衡位置，使其具有良好的扬声器性能。同时还大大提高了装配精度和物料精度，简化了装配等工艺。After adopting the above technical solution, the beneficial effects of the present invention are: due to the integrated magnet voice coil assembly of the present invention and the moving magnetic speaker provided with the assembly, wherein the integrated magnet voice coil assembly includes a voice coil provided with a center hole and a bonded magnet integrally molded with a voice coil; the voice coil is pre-wound; the bonded magnet is combined with the voice coil by a mixed resin and magnetic fluid, and the bonded magnet is magnetized after injection molding. . Since the present invention injection molding the bonded magnet in the middle of the voice coil, the magnetic force of the bonded magnet can be conveniently realized by adjusting the ratio of the resin to the magnetic fluid and the shape of the magnet. After the integrated magnet voice coil assembly of the present invention is used for a moving magnetic speaker, the bonded magnet can be easily adjusted by balancing the magnetic force of the diaphragm, so that the speaker can well control the balance position of the diaphragm and make it have a good position. Speaker performance. At the same time, the assembly precision and material precision are greatly improved, and the assembly process is simplified.
由于柱状部与音圈的中心孔的形状相一致；进一步简化了装配工艺。Since the columnar portion conforms to the shape of the center hole of the voice coil; the assembly process is further simplified.
由于粘结磁铁在竖向上全部或部分填满音圈的中心孔，在注塑阶段可根据所需的磁力，调整音圈的中心内注入粘结磁铁的高度。Since the bonded magnet completely or partially fills the center hole of the voice coil in the vertical direction, the height of the bonded magnet in the center of the voice coil can be adjusted according to the required magnetic force in the injection molding stage.
由于树脂和磁液的配比浓度与粘结磁铁的磁力相适配，在注塑阶段可根据所需的磁力，调整树脂和磁液的配比。Since the compounding concentration of the resin and the magnetic fluid is matched with the magnetic force of the bonded magnet, the ratio of the resin to the magnetic fluid can be adjusted according to the required magnetic force at the injection molding stage.
综上所述，本发明的一体式磁铁音圈组件与现有技术相比，解决了现有技术中为了平衡吸引力、排斥力在音圈中间***额外磁铁时，选择合适的额外磁铁难度大的技术问题；而本发明的一体式磁铁音圈组件，因其采用一体注塑成型的方式，将树脂和磁液注塑在音圈的中间，使成型后的粘结磁铁的
高度、磁力等均可方便的控制，从而提高了装配精度，简化了装配工艺。In summary, the integrated magnet voice coil assembly of the present invention solves the problem of selecting an appropriate extra magnet when inserting an extra magnet in the middle of the voice coil in order to balance the attraction force and the repulsive force in the prior art. The technical problem of the integrated magnet voice coil assembly of the present invention is that the resin and the magnetic fluid are injection molded in the middle of the voice coil by means of integral injection molding, so that the bonded magnet after molding
Height, magnetic force, etc. can be easily controlled, thereby improving assembly accuracy and simplifying the assembly process.
图1是本发明一体式磁铁音圈组件注塑时的结构示意图；1 is a schematic structural view of an integrated magnet voice coil assembly of the present invention when injection molded;
图2是本发明一体式磁铁音圈组件的粘结磁铁高度低时的结构示意图；2 is a schematic structural view of the integrated magnet voice coil assembly of the present invention when the height of the bonded magnet is low;
图3是本发明一体式磁铁音圈组件的粘结磁铁配比浓度大时的结构示意图；3 is a schematic structural view showing a bonding magnet of the integrated magnet voice coil assembly of the present invention having a large concentration ratio;
图4是实施例中动磁式扬声器的剖视结构示意图；Figure 4 is a cross-sectional structural view showing a moving magnetic speaker in the embodiment;
图5是实施例动磁式扬声器的分解结构示意图。Fig. 5 is a schematic exploded view showing the structure of the moving magnetic speaker of the embodiment.
图中：1—注塑工装、10—外壳、12—前盖、120—出声孔、20—振动板、22—折环、24—驱动磁铁、26—马达磁铁、28—折环、30—盆架、300—安装部、32—导磁部件、34—音圈、36—粘结磁铁、360—柱状部、361—板状部、38—对磁磁铁、39—弹片、42—箭头。In the figure: 1—injection tooling, 10-shell, 12—front cover, 120—sound hole, 20—vibration plate, 22—folded ring, 24-drive magnet, 26—motor magnet, 28—folded ring, 30— Basin frame, 300-mounting part, 32-magnetic conductive part, 34-voice coil, 36-bonded magnet, 360-column part, 361-plate part, 38-pair magnetic magnet, 39-spring piece, 42-arrow.
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
如图1、图2和图3所示，一种一体式磁铁音圈组件，包括设置有中心孔的音圈34，以及与音圈34一体注塑成型的粘结磁铁36；音圈34预先绕制成型；粘结磁铁36与音圈34通过注塑工艺结合成一体；粘结磁铁36由混合在一起的树脂和磁液通过注塑工艺与音圈34结合为一体，且粘结磁铁36注塑成型后充磁。As shown in FIG. 1, FIG. 2 and FIG. 3, an integrated magnet voice coil assembly includes a voice coil 34 provided with a center hole, and a bonded magnet 36 integrally molded with the voice coil 34; the voice coil 34 is pre-wound The bonded magnet 36 and the voice coil 34 are integrated by an injection molding process; the bonded magnet 36 is integrally combined with the voice coil 34 by an injection molding process, and the bonded magnet 36 is injection molded. After magnetization.
如图1、图2和图3所示，本实施例的粘结磁铁36包括结合为一体的柱状部360及板状部361，柱状部360位于音圈34的中心孔内，板状部361覆盖在音圈34的一侧表面上。并且柱状部360与音圈34的中心孔的形状相一致，进一步简化了装配工艺。As shown in FIG. 1, FIG. 2 and FIG. 3, the bonded magnet 36 of the present embodiment includes a columnar portion 360 and a plate portion 361 which are integrally coupled, and the columnar portion 360 is located in the center hole of the voice coil 34, and the plate portion 361 Covered on one side surface of the voice coil 34. And the cylindrical portion 360 conforms to the shape of the center hole of the voice coil 34, which further simplifies the assembly process.
如图1和图2所示，在进行注塑时，将绕制成型的音圈34放在注塑工装1内，本实施例的音圈34为扁平结构，注塑工装1的形状与一体式磁铁音圈
组件的音圈34形状相适配。音圈34扁平放置后从其中心上方(图1中的箭头42所示)向音圈34的中心注入树脂和磁液的混合溶液。根据所需的粘结磁铁的磁力，在音圈34的中心竖向注入相应高度的混合溶液，注塑完毕成型后，粘结磁铁36的高度达到了所需的高度。图1示出了粘结磁铁36的高度与音圈34齐平的情况，图2示出了粘结磁铁36的高度低于音圈34的情况。As shown in FIG. 1 and FIG. 2, in the injection molding, the wound voice coil 34 is placed in the injection molding tool 1. The voice coil 34 of the present embodiment has a flat structure, and the shape of the injection molding tool 1 and the integrated magnet are shown. Voice coil
The voice coil 34 of the assembly is shaped to fit. After the voice coil 34 is placed flat, a mixed solution of a resin and a magnetic liquid is injected from the center thereof (indicated by an arrow 42 in Fig. 1) toward the center of the voice coil 34. According to the required magnetic force of the bonded magnet, a mixed solution of a corresponding height is vertically injected at the center of the voice coil 34, and after the injection molding is completed, the height of the bonded magnet 36 reaches a desired height. 1 shows the case where the height of the bonded magnet 36 is flush with the voice coil 34, and FIG. 2 shows the case where the height of the bonded magnet 36 is lower than that of the voice coil 34.
如图3所示，调整粘结磁铁36的磁力，还可通过调整树脂和磁液的配比浓度来实现，在注塑之前调整配比后，注入音圈34中心后成型的粘结磁铁36，就得到所需的磁力。同样粘结磁铁36的磁力的调整操作非常方便，简化了装配的工艺。图3示出了粘结磁铁36的配比浓度大于图1和图2中的配比浓度的情况。As shown in FIG. 3, the magnetic force of the bonded magnet 36 can be adjusted by adjusting the concentration ratio of the resin and the magnetic fluid. After adjusting the ratio before injection molding, the bonded magnet 36 is injected into the center of the voice coil 34, Get the magnetic force you need. Also, the adjustment of the magnetic force of the bonded magnet 36 is very convenient, which simplifies the assembly process. Fig. 3 shows the case where the compounding concentration of the bonded magnet 36 is larger than that in Figs. 1 and 2.
另外本实施的粘结磁铁36沿竖直方向充磁。Further, the bonded magnet 36 of the present embodiment is magnetized in the vertical direction.
如图4和图5所示，一种动磁式扬声器，包括壳体，壳体内收容有振膜及与振膜平行设置的振子，振子包括上述的一体式磁铁音圈组件；振膜靠近振子的一侧固定有驱动磁铁24，振子靠近振膜的一侧设有马达磁铁26；驱动磁铁24与一体式磁铁音圈组件的中心相对设置；驱动磁铁24和马达磁铁26的磁化方向均为竖向。As shown in FIG. 4 and FIG. 5, a moving magnetic speaker includes a casing, and a diaphragm is disposed in the casing and a vibrator disposed in parallel with the diaphragm. The vibrator includes the integrated magnet voice coil assembly; the diaphragm is adjacent to the vibrator. A driving magnet 24 is fixed on one side thereof, and a motor magnet 26 is disposed on a side of the vibrator near the diaphragm; the driving magnet 24 is disposed opposite to the center of the integrated magnet voice coil assembly; the magnetization directions of the driving magnet 24 and the motor magnet 26 are vertical to.
本实施例的动磁式扬声器为长方体结构，壳体包括上下结合在一起的前盖12和外壳10，前盖12为下端敞口的盒状结构，外壳10为上端敞口的盒状结构，前盖12的敞口端扣合在外壳10的敞口端上。振膜固定在前盖12上，前盖12的中部设有出声孔120；振子通过两弹片39悬置在前盖12和外壳10围成的空间内，两弹片39与外壳10固定连接。The moving magnetic speaker of the embodiment has a rectangular parallelepiped structure, and the casing comprises a front cover 12 and an outer casing 10 which are vertically joined together, the front cover 12 is a box-like structure in which the lower end is open, and the outer casing 10 is a box-like structure in which the upper end is open. The open end of the front cover 12 is fastened to the open end of the outer casing 10. The diaphragm is fixed on the front cover 12, and the sound hole 120 is disposed in the middle of the front cover 12. The vibrator is suspended in the space surrounded by the front cover 12 and the outer casing 10 by two elastic pieces 39, and the two elastic pieces 39 are fixedly connected with the outer casing 10.
如图4和图5所示，振膜靠近振子的一侧的中部固定有驱动磁铁24和马达磁铁26，驱动磁铁24和马达磁铁26的磁化方向均为竖向。本实施方式中振膜包括位于边缘的折环22及固定在折环22中部的振动板20，驱动磁铁24和马达磁铁26均固定在振动板20上，折环22的边缘部的上侧固定有垫环28，垫环28固定在前盖12顶部的内侧，从而将振膜固定在前盖12上。振子包括一体式磁铁音圈组件，该一体式磁铁音圈组件的音圈34为扁平结构，水平固
定在一盆架30上，两弹片39分别固定连接在盆架30的两端，弹片39的一端与盆架30固定连接，弹片39的另一端与外壳10固定连接，从而将振子悬置在前盖12和外壳10围成的空间内。As shown in FIGS. 4 and 5, the drive magnet 24 and the motor magnet 26 are fixed to the middle portion of the diaphragm near the side of the vibrator, and the magnetization directions of the drive magnet 24 and the motor magnet 26 are both vertical. In the embodiment, the diaphragm includes a folding ring 22 at the edge and a vibration plate 20 fixed in the middle of the folding ring 22. The driving magnet 24 and the motor magnet 26 are both fixed on the vibration plate 20, and the upper side of the edge portion of the folding ring 22 is fixed. There is a backing ring 28, and the backing ring 28 is fixed to the inner side of the top of the front cover 12, thereby fixing the diaphragm to the front cover 12. The vibrator includes an integral magnet voice coil assembly, and the voice coil 34 of the integrated magnet voice coil assembly has a flat structure and is horizontally fixed.
The two elastic pieces 39 are fixedly connected to the two ends of the basin frame 30, and one end of the elastic piece 39 is fixedly connected with the basin frame 30, and the other end of the elastic piece 39 is fixedly connected with the outer casing 10, thereby suspending the vibrator. The front cover 12 and the outer casing 10 enclose a space.
如图4和图5所示，本实施方式优选驱动磁铁24设有两块，马达磁铁26位于两驱动磁铁24之间，同时一体式磁铁音圈组件也设有两个，分别与两个驱动磁铁24相对应设置，两驱动磁铁24的磁化方向相反，两一体式磁铁音圈组件的音圈34的通电电流方向也相反。两驱动磁铁24分别与两一体式磁铁音圈组件的音圈34的中心相对应，马达磁铁26同时与两音圈34相靠近的一侧相对应。As shown in FIG. 4 and FIG. 5, in the embodiment, it is preferable that the driving magnet 24 is provided with two pieces, the motor magnet 26 is located between the two driving magnets 24, and the integrated magnet voice coil assembly is also provided with two, respectively, and two driving. The magnets 24 are disposed correspondingly, and the magnetization directions of the two driving magnets 24 are opposite, and the direction of the energizing current of the voice coil 34 of the two integrated magnet voice coil assemblies is also opposite. The two drive magnets 24 respectively correspond to the centers of the voice coils 34 of the two integrated magnet voice coil assemblies, and the motor magnets 26 simultaneously correspond to the side closer to the two voice coils 34.
如图4和图5所示，本实施的一体式磁铁音圈组件的粘结磁铁36分别与两块驱动磁铁24相对设置，两粘结磁铁36分别根据通过相应的音圈34的电流方向的变化而改变自身的磁化方向，两一体式磁铁音圈组件构成了两块电磁铁。两一体式磁铁音圈组件的音圈34相远离的一侧各罩设有一导磁部件32，两导磁部件32结构相同且相对设置。导磁部件32的结构与音圈34位于中心线一侧的结构相适配，即导磁部件32与半个音圈34的结构相适配，其仅罩设住音圈34的一半侧部和一半上部，能够将磁场向中心聚拢，减少漏磁。本实施例的粘结磁铁36的板状部361与导磁部件32对齐设置，也就是本实施例的一体式磁铁音圈组件的粘结磁铁36的板状部361朝向驱动磁铁侧设置。As shown in FIG. 4 and FIG. 5, the bonded magnets 36 of the integrated magnet voice coil assembly of the present embodiment are respectively disposed opposite to the two driving magnets 24, and the two bonded magnets 36 are respectively according to the direction of current passing through the corresponding voice coil 34. Changing and changing its magnetization direction, the two integrated magnet voice coil assemblies form two electromagnets. A magnetically permeable member 32 is disposed on each side of the two integral magnetized voice coil assemblies that are away from the voice coil 34. The two magnetically permeable members 32 are identical in structure and disposed opposite each other. The structure of the magnetically permeable member 32 is adapted to the structure of the voice coil 34 on the side of the center line, that is, the magnetically permeable member 32 is adapted to the structure of the half voice coil 34, which covers only half of the side of the voice coil 34. And half of the upper part, can gather the magnetic field to the center to reduce magnetic leakage. The plate-like portion 361 of the bonded magnet 36 of the present embodiment is disposed in alignment with the magnetic conductive member 32, that is, the plate-like portion 361 of the bonded magnet 36 of the integrated magnet voice coil unit of the present embodiment is disposed toward the drive magnet side.
如图4和图5所示，本实施方式进一步的优选振子还包括设置在两一体式磁铁音圈组件的音圈34之间的对磁磁铁38，对磁磁铁38也固定在盆架30上，对磁磁铁38的磁化方向也为竖向，且对磁磁铁38的磁化方向与马达磁铁26的磁化方向相反，如图4所示。马达磁铁26在振子振动方向上的尺寸大于对磁磁铁38在振子振动方向上的尺寸，且对磁磁铁38与马达磁铁26的中心位置相对应。As shown in FIG. 4 and FIG. 5, a further preferred vibrator of the present embodiment further includes a pair of magnetic magnets 38 disposed between the voice coils 34 of the two integrated magnet voice coil assemblies, and the pair of magnets 38 are also fixed to the basin frame 30. The magnetization direction of the magnet magnet 38 is also vertical, and the magnetization direction of the magnet magnet 38 is opposite to the magnetization direction of the motor magnet 26, as shown in FIG. The size of the motor magnet 26 in the vibration direction of the vibrator is larger than the size of the magnet magnet 38 in the vibration direction of the vibrator, and corresponds to the center position of the magnet magnet 38 and the motor magnet 26.
如图4和图5所示，盆架30包括矩形的底部，底部的四个角部各设有一与底部相垂直且向上延伸的安装部300。两一体式磁铁音圈组件和对磁磁铁38均固定在盆架30的底部上，弹片39的端部固定在安装部300上。
As shown in Figures 4 and 5, the basin frame 30 includes a rectangular bottom portion, and the four corner portions of the bottom portion are each provided with a mounting portion 300 that is perpendicular to the bottom portion and extends upward. Both the integrated magnet voice coil assembly and the pair of magnets 38 are fixed to the bottom of the basin frame 30, and the ends of the elastic pieces 39 are fixed to the mounting portion 300.
如图4和图5所示，两弹片39结构相同。弹片39包括两条弹性臂，两条弹性臂均由扁平结构的线材制成，且线材在竖向上的宽度均大于其在横向上的宽度，两条弹性臂位于同侧的端部连接为一体，且两条弹性臂之间夹有一定角度，本实施方式优选该角度为锐角，两条弹性臂未相连接的端部分别与盆架30的安装部300和外壳10固定连接，且与盆架30和外壳10之间的连接点均位于振子横向中心线的同侧。两弹片39相对于振子的对角线对称设置，即两个弹片39分别与位于盆架30底部的同一对角线上的两个安装部300贴合固定连接在一起。As shown in FIGS. 4 and 5, the two elastic pieces 39 have the same structure. The elastic piece 39 comprises two elastic arms, both of which are made of a flat-structured wire, and the width of the wire in the vertical direction is greater than the width in the lateral direction, and the two elastic arms are connected at the same end. And the angle between the two elastic arms is an angle. In the embodiment, the angle is an acute angle, and the ends of the two elastic arms that are not connected are respectively fixedly connected to the mounting portion 300 of the basin frame 30 and the outer casing 10, and the basin is The connection points between the frame 30 and the outer casing 10 are located on the same side of the transverse centerline of the vibrator. The two elastic pieces 39 are symmetrically arranged with respect to the diagonal of the vibrator, that is, the two elastic pieces 39 are respectively fixedly and fixedly connected to the two mounting portions 300 on the same diagonal line of the bottom of the basin frame 30.
如图4和图5共同所示，本发明扬声器的工作原理如下：当音圈34通过交变的音频电流时，音圈34和粘结磁铁36会成为电磁铁，产生一个竖直方向的磁场，该磁场与驱动磁铁24相互作用，由于一体式磁铁音圈组件在竖直方向上是固定的，因此驱动磁铁会上下振动，振膜随着驱动磁铁24一同上下振动，从而策动空气发声，实现扬声器的功能。当音圈通过交变的马达电流时，马达磁铁的磁感线切割通电的音圈，音圈受到洛伦兹力的作用而产生X向的运动，从而实现马达的振动功能。As shown in Fig. 4 and Fig. 5, the working principle of the speaker of the present invention is as follows: when the voice coil 34 passes the alternating audio current, the voice coil 34 and the bonded magnet 36 become electromagnets, generating a vertical magnetic field. The magnetic field interacts with the driving magnet 24. Since the integrated magnet voice coil assembly is fixed in the vertical direction, the driving magnet vibrates up and down, and the diaphragm vibrates up and down along with the driving magnet 24, thereby inducing the air to sound. The function of the speaker. When the voice coil passes the alternating motor current, the magnetic line of the motor magnet cuts the energized voice coil, and the voice coil is subjected to the Lorentz force to generate an X-direction motion, thereby realizing the vibration function of the motor.
因本发明的动磁式扬声器采用注塑成型的方式，将粘结磁铁36注塑在音圈34的中心，取代了原有在音圈34中心***额外磁铁的方式。使粘结磁铁36的磁力调整，可在注塑阶段通过调整树脂和磁液的比例，注塑的高度来实现，从而大大提高了装配精度和物料精度，简化了装配等工艺。使本发明的动磁式扬声器，方便的控制了振膜的平衡位置，具有良好的扬声器性能。Since the moving magnet speaker of the present invention is injection molded, the bonded magnet 36 is molded in the center of the voice coil 34, instead of inserting an extra magnet into the center of the voice coil 34. The magnetic force adjustment of the bonded magnet 36 can be realized by adjusting the ratio of the resin and the magnetic fluid in the injection molding stage, and the height of the injection molding, thereby greatly improving the assembly precision and the material precision, and simplifying the assembly process. The moving magnetic speaker of the present invention conveniently controls the balance position of the diaphragm and has good speaker performance.
以上所述本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同一种一体式磁铁音圈组件及设有该组件的动磁式扬声器结构的改进等，均应包含在本发明的保护范围之内。
The above-described preferred embodiments of the present invention are not intended to limit the present invention, and any modification made within the spirit and principles of the present invention is equivalent to an integrated magnet voice coil assembly and the movement of the assembly. Improvements in the structure of the magnetic speaker, etc., are all included in the scope of protection of the present invention.
Claims (14)
- 一种一体式磁铁音圈组件，其特征在于，包括设置有中心孔的音圈以及与所述音圈一体注塑成型的粘结磁铁；所述音圈预先绕制成型；所述粘结磁铁由混合在一起的树脂和磁液通过注塑工艺与所述音圈结合为一体，且所述粘结磁铁注塑成型后充磁。An integrated magnet voice coil assembly, comprising: a voice coil provided with a central hole; and a bonded magnet integrally molded with the voice coil; the voice coil is pre-formed; the bonded magnet The resin and the magnetic fluid mixed together are integrated with the voice coil by an injection molding process, and the bonded magnet is magnetized after injection molding.
- 根据权利要求1所述的一体式磁铁音圈组件，其特征在于，所述粘结磁铁包括结合为一体的柱状部及板状部，所述柱状部位于所述音圈的中心孔内，所述板状部覆盖在所述音圈的一侧表面上。The integrated magnet voice coil assembly according to claim 1, wherein the bonded magnet comprises a columnar portion and a plate portion integrally joined, and the columnar portion is located in a center hole of the voice coil. The plate portion covers one side surface of the voice coil.
- 根据权利要求2所述的一体式磁铁音圈组件，其特征在于，所述柱状部与所述音圈的中心孔的形状相一致。The integrated magnet voice coil assembly according to claim 2, wherein said columnar portion conforms to a shape of a center hole of said voice coil.
- 根据权利要求1所述的一体式磁铁音圈组件，其特征在于，所述粘结磁铁在竖向上全部或部分填满所述音圈的中心孔。The integrated magnet voice coil assembly according to claim 1, wherein said bonded magnet fills a central hole of said voice coil in whole or in part in a vertical direction.
- 根据权利要求1所述的一体式磁铁音圈组件，其特征在于，所述树脂和所述磁液的配比浓度与所述粘结磁铁的磁力相适配。The integrated magnet voice coil assembly according to claim 1, wherein a concentration ratio of said resin and said magnetic fluid is matched with a magnetic force of said bonded magnet.
- 根据权利要求1所述的一体式磁铁音圈组件，其特征在于，所述粘结磁铁沿竖直方向充磁。The integrated magnet voice coil assembly according to claim 1, wherein said bonded magnet is magnetized in a vertical direction.
- 一种动磁式扬声器，其特征在于，包括壳体，所述壳体内收容有振膜及与所述振膜平行设置的振子，所述振子包括权利要求1至6任一项所述的一体式磁铁音圈组件；所述振膜靠近所述振子的一侧固定有驱动磁铁，所述振子靠近所述振膜的一侧还设有马达磁铁；所述驱动磁铁与所述一体式磁铁音圈组件的中心相对设置；所述驱动磁铁和所述马达磁铁的磁化方向均为竖向。A moving magnetic speaker includes a housing in which a diaphragm and a vibrator disposed in parallel with the diaphragm are housed, and the vibrator includes the integral body according to any one of claims 1 to 6. a magnet coil assembly; a drive magnet is fixed to a side of the diaphragm adjacent to the vibrator, and a motor magnet is further disposed on a side of the vibrator near the diaphragm; the drive magnet and the integrated magnet sound The centers of the ring assemblies are oppositely disposed; the magnetization directions of the drive magnets and the motor magnets are both vertical.
- 根据权利要求7所述的动磁式扬声器，其特征在于，所述一体式磁铁音圈组件固定于盆架上，所述盆架的两端分别固定有弹性支撑件；所述弹性支撑件具有沿水平方向的弹性形变空间。The moving magnetic speaker according to claim 7, wherein the integral magnet voice coil assembly is fixed to the basin frame, and the two ends of the basin frame are respectively fixed with elastic supporting members; the elastic supporting member has Elastic deformation space in the horizontal direction.
- 根据权利要求8所述的动磁式扬声器，其特征在于，所述驱动磁铁设有两块，所述一体式磁铁音圈组件设有两个。 The moving magnet speaker according to claim 8, wherein the driving magnet is provided with two pieces, and the integrated magnet voice coil unit is provided with two.
- 根据权利要求9所述的动磁式扬声器，其特征在于，位于两个所述一体式磁铁音圈组件之间的所述盆架上设有对磁磁铁，所述马达磁铁与所述对磁磁铁相对应设置，所述马达磁铁与所述对磁磁铁的充磁方向均为竖向且二者充磁方向相反；两个所述一体式磁铁音圈组件的通电电流方向相反，两个所述驱动磁铁的充磁方向相反。The moving magnetic speaker according to claim 9, wherein said basin frame between said two integrated magnet voice coil assemblies is provided with a pair of magnets, said motor magnets and said pair of magnets The magnets are correspondingly disposed, the magnetizing directions of the motor magnets and the pair of magnetrons are both vertical and the magnetization directions thereof are opposite; the energization currents of the two integrated magnet voice coil assemblies are opposite in direction, and the two The magnetization direction of the drive magnet is reversed.
- 根据权利要求9所述的动磁式扬声器，其特征在于，两个所述一体式磁铁音圈组件相远离的一侧各罩设有一导磁部件，两个所述导磁部件结构相同且相对设置，所述导磁部件的结构与所述一体式磁铁音圈组件的结构相适配。The moving magnetic speaker according to claim 9, wherein each of the two sides of the integrated magnet voice coil assembly is provided with a magnetic conductive member, and the two magnetic conductive members have the same structure and are opposite It is provided that the structure of the magnetically permeable member is adapted to the structure of the integrated magnet voice coil assembly.
- 根据权利要求10或11所述的动磁式扬声器，其特征在于，所述壳体包括上下结合在一起的前盖和外壳；所述振膜固定在所述前盖上，所述前盖的中部设有出声孔；所述振子安装在所述外壳上，所述弹性支撑件的另一端与所述外壳固定连接。A moving magnet speaker according to claim 10 or 11, wherein said housing comprises a front cover and an outer casing joined together; said diaphragm is fixed to said front cover, said front cover The sound hole is provided in the middle portion; the vibrator is mounted on the outer casing, and the other end of the elastic support member is fixedly connected to the outer casing.
- 根据权利要求12所述的动磁式扬声器，其特征在于，所述弹性支撑件为弹片，所述弹片包括两条弹性臂，两条所述弹性臂位于同侧的端部连接为一体，所述弹性臂由扁平结构的线材制成，且所述线材在竖向上的宽度均大于其在横向上的宽度；两条所述弹性臂未相连接的端部分别与所述盆架和所述外壳固定连接。The moving magnetic speaker according to claim 12, wherein the elastic supporting member is a spring piece, and the elastic piece comprises two elastic arms, and the two elastic arms are integrally connected at the same side end. The elastic arm is made of a wire of a flat structure, and the width of the wire in the vertical direction is greater than the width thereof in the lateral direction; the ends of the two unconnected elastic arms are respectively associated with the basin frame and the The housing is fixedly connected.
- 根据权利要求13所述的动磁式扬声器，其特征在于，所述盆架包括矩形的底部，底部的四个角部各设有与底部相垂直且向上延伸的一个安装部，且所述弹片与对应的所述安装部固定连接在一起。 A moving magnet speaker according to claim 13, wherein said basin frame comprises a rectangular bottom portion, and each of the four corner portions of the bottom portion is provided with a mounting portion which is perpendicular to the bottom portion and extends upward, and the elastic piece It is fixedly coupled to the corresponding mounting portion.
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| CN201710162664.1 | 2017-03-18 | ||
| CN201710162664.1A CN106658314B (en) | 2017-03-18 | 2017-03-18 | Integral type voice coil magnet component and moving-magnetic type loudspeaker equipped with the component |
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| CN111866696A (en) * | 2020-07-06 | 2020-10-30 | 东莞市融贤实业有限公司 | Multifunctional automatic balance sound gauge for loudspeaker and loudspeaker assembling method |
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| WO2010004285A1 (en) * | 2008-07-11 | 2010-01-14 | Cooper Medc Limited | Explosion-proof speaker assembly |
| CN202750223U (en) * | 2012-08-01 | 2013-02-20 | 楼氏电子（北京）有限公司 | Magnetic circuit system and moving-coil type electroacoustic transducer comprising same |
| CN103686558A (en) * | 2013-12-03 | 2014-03-26 | 歌尔声学股份有限公司 | Loudspeaker |
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| JPS63164800A (en) * | 1986-12-26 | 1988-07-08 | Matsushita Electric Ind Co Ltd | Speaker |
| EP1548765B1 (en) * | 2002-09-19 | 2009-07-22 | Nec Tokin Corporation | Method for manufacturing bonded magnet and method for manufacturing magnetic device having bonded magnet |
| CN2629379Y (en) * | 2003-03-21 | 2004-07-28 | Dlc设计公司 | Loudspeaker with coexisting magnet structure |
| US8290199B2 (en) * | 2009-05-21 | 2012-10-16 | Bose Corporation | Loudspeaker suspension |
| KR101503869B1 (en) * | 2013-01-25 | 2015-03-18 | 이남규 | Magnetic circuit for speaker and manufacturing method thereof |
| CN104936112B (en) * | 2015-07-01 | 2018-08-31 | 深圳精拓创新科技有限公司 | A kind of loud speaker and driving method of double diaphragm structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010004285A1 (en) * | 2008-07-11 | 2010-01-14 | Cooper Medc Limited | Explosion-proof speaker assembly |
| CN202750223U (en) * | 2012-08-01 | 2013-02-20 | 楼氏电子（北京）有限公司 | Magnetic circuit system and moving-coil type electroacoustic transducer comprising same |
| CN103686558A (en) * | 2013-12-03 | 2014-03-26 | 歌尔声学股份有限公司 | Loudspeaker |
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