WO2022067989A1 - Sound generation device, loudspeaker box, and integrated hot-press forming method - Google Patents
Sound generation device, loudspeaker box, and integrated hot-press forming method Download PDFInfo
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- WO2022067989A1 WO2022067989A1 PCT/CN2020/128309 CN2020128309W WO2022067989A1 WO 2022067989 A1 WO2022067989 A1 WO 2022067989A1 CN 2020128309 W CN2020128309 W CN 2020128309W WO 2022067989 A1 WO2022067989 A1 WO 2022067989A1
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- sound
- magnetic yoke
- yoke
- diaphragm
- generating device
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Classifications
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
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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
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/006—Interconnection of transducer parts
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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
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Definitions
- the invention relates to the field of electro-acoustic conversion, in particular to a sound-generating device, a speaker box and an integrated hot-pressing molding method used in portable electronic products.
- the sound-generating device of the related art includes a basin frame, a vibration system respectively fixed to the basin frame, a magnetic circuit system for driving the vibration system to vibrate and emit sound, and a ventilating isolator, and the vibration system includes a diaphragm fixed to the basin frame.
- the magnetic circuit system includes a magnetic yoke fixed on the basin frame, the ventilating spacer is fixed on the basin frame and the magnetic yoke at the same time, and the basin frame, the diaphragm, the magnetic yoke and the damping member together to form a sounding inner cavity, the yoke is provided with a leakage hole passing through it, the sounding inner cavity is connected to the outside through the leakage hole, and the air-permeable isolator is fitted and fixed to the yoke and completely cover the leak hole.
- the air-permeable spacer covers the leakage holes alone.
- each of the leakage holes is covered with a piece of the air-permeable spacer.
- the process is complicated, and errors are prone to occur at the same time, so that the leakage hole cannot be completely covered.
- the sound-emitting device is applied to the speaker box, the back cavity of the speaker box is filled with sound-absorbing particles, and the breathable spacer is used to encapsulate the sound-absorbing particles. Outside the sound-emitting cavity, when there is an error in the process, the sound-absorbing particles are likely to leak powder into the sound-emitting cavity of the sound-emitting device, resulting in performance degradation and low reliability.
- the purpose of the present invention is to overcome the above-mentioned technical problems, and to provide a sound-emitting device, a speaker box and an integrated hot-pressing method for solving the problem that the sound-absorbing particles outside the sound-emitting device leak powder into the sound-emitting cavity, thereby improving reliability and being easy to assemble and manufacture. .
- the present invention provides a sound-generating device, which includes a vibration system, a magnetic circuit system for driving the vibration system to vibrate and sound, and a ventilating isolator;
- the vibration system includes a diaphragm for vibration and sound
- the circuit system includes a magnetic yoke, the diaphragm and the magnetic yoke are respectively arranged on opposite sides of the sound-emitting device, and the diaphragm, the magnetic yoke and the air-permeable spacer together form a sound-emitting inner cavity, so
- the magnetic yoke is provided with a leakage hole passing through it, the sounding inner cavity is connected to the outside through the leakage hole, and the breathable spacer is fitted and fixed to the magnetic yoke and completely covers the leakage hole.
- the spacer is matched with the three-dimensional shape of the magnetic yoke and completely covers the side of the magnetic yoke away from the vibrating membrane; the air-permeable spacer and the
- the magnetic yoke includes a magnetic yoke body, an extension portion bent and extended from the outer peripheral edge of the magnetic yoke body, and a fixed portion bent and extended from the extension portion in a direction away from the magnetic yoke body,
- the leakage hole is located in the extension part, and the fixing part is fixed with the vibration system; the air-permeable isolator completely fits and covers the yoke body, the extension part and the fixing part.
- the yoke body is rectangular, and the leakage holes include two and are respectively disposed on opposite sides of the yoke body.
- the magnetic yoke body is in the shape of a rectangle with rounded corners, and the leakage holes include four and are respectively located at the rounded corner positions of the extension portion close to the magnetic yoke body.
- the breathable spacer is a mesh cloth or a metal mesh.
- the sound-generating device further includes a basin frame, the diaphragm and the magnetic yoke are respectively fixed on opposite sides of the basin frame, the basin frame, the diaphragm, the magnetic yoke and the The air-permeable spacers together form the sounding inner cavity.
- the diaphragm includes a diaphragm body and a diaphragm side wall formed by bending and extending the diaphragm body in the direction of the basin frame, and the diaphragm side wall is fixed on the outer side of the basin frame. .
- the vibration system further includes an elastic support component located in the sounding inner cavity and opposite to the diaphragm and arranged at intervals, and the extension portion extends from the fixing portion to a direction away from the elastic support component So that the extension part forms an avoidance structure with the elastic support component, and the elastic support component is disposed opposite to the leakage hole.
- the present invention also provides a loudspeaker box, the loudspeaker box includes the sound-generating device described in any one of the above.
- the present invention also provides an integrated hot press molding method, which includes an upper mold and a lower mold for hot press molding and matching the shape of the magnetic yoke. It includes the following steps:
- Step S1 applying glue on the side of the magnetic yoke that is located away from the diaphragm;
- Step S2 putting the magnetic yoke into the lower mold and positioning, wherein the opposite side of the magnetic yoke coated with glue is abutted against the lower mold;
- Step S3 then put the raw material of the breathable spacer into the lower mold;
- Step S4 pressing the upper mold and the lower mold, so that the upper mold compresses the raw material and abuts the magnetic yoke;
- Step S5 heating and maintaining the pressure of the upper mold and the lower mold, so that the raw material and the magnetic yoke are integrally formed;
- step S6 the integrally formed raw material and the magnetic yoke are demolded from the upper mold and the lower mold, and the raw material outside the magnetic yoke is cut off by a laser.
- the sound-generating device and the speaker box of the present invention match the three-dimensional shape of the air-permeable spacer with the magnetic yoke and completely cover the side of the magnetic yoke away from the diaphragm, and use the
- the ventilating spacer and the magnetic yoke are integrally hot-pressed, so that the ventilating spacer completely covers the magnetic yoke, so that when the sound-emitting device is applied to the speaker box, the back cavity of the speaker box is filled with sound-absorbing particles, which
- the structure avoids the risk of the sound-absorbing particles leaking into the sound-emitting inner cavity of the sound-emitting device, thereby improving reliability and being easy to assemble and manufacture.
- the integrated hot pressing forming method of the present invention adopts the following steps: step S1, applying glue on the side of the magnetic yoke that is located away from the vibrating film; step S2, placing the magnetic yoke into the lower mold and positioning, wherein the magnetic yoke is coated with glue The opposite side is in contact with the lower mold; step S3, put the raw material of the air-permeable spacer into the lower mold; step S4, press the upper mold with the lower mold, so that the upper mold compresses the raw material and abuts against the magnetic yoke; step S5, heating and pressure-holding the upper mold and the lower mold, so that the raw material and the magnetic yoke are integrally formed; step S6, demolding the integrally formed raw material and the magnetic yoke from the upper mold and the lower mold, and laser The material outside the yoke is removed.
- the integrated hot-pressing molding method of the present invention is easy to manufacture, and can make the sound-emitting device easy to assemble and manufacture, and also avoids the risk of the sound-absorbing particles leaking powder into the sound-emitting inner cavity of the sound-emitting device, and improves the reliability of the sound-emitting device.
- Fig. 1 is the three-dimensional structure schematic diagram of the sound-emitting device of the present invention
- FIG. 2 is a schematic three-dimensional structure diagram of another angle of the sound-emitting device of the present invention.
- FIG. 3 is an exploded view of a partial three-dimensional structure of the sound-emitting device of the present invention.
- FIG. 4 is a flow chart of the one-piece hot pressing forming method of the present invention.
- the present invention provides a sound-generating device 100 , the sound-generating device 100 includes a basin frame 1 , a vibration system 2 , a magnetic circuit system 3 and a ventilating spacer 4 .
- the basin frame 1 is used to fix the vibration system 2 and the magnetic circuit system 3 .
- the basin frame 1 is rectangular.
- the sound-generating device 100 may not be provided with the basin frame 1, and the vibration system 2 and the magnetic circuit system 3 may be fixed to each other.
- the vibration system 2 is fixed to the basin frame 1 .
- the vibration system 2 includes a diaphragm 21 , a voice coil 22 and an elastic support component 23 .
- the diaphragm 21 is used for vibrating and producing sound.
- the diaphragm 21 is fixed to the basin frame 1 .
- the diaphragm 21 includes a diaphragm body 211 and a diaphragm sidewall 212 formed by bending the diaphragm body 211 toward the basin frame 1 , and the diaphragm sidewall 212 is fixed on the the outside of the basin frame 1. This structure enables the diaphragm 21 and the basin frame 1 to form a fixed structure with good sealing performance.
- the voice coil 22 is fixed to the diaphragm 21, and the voice coil 22 is used to drive the diaphragm 21 to vibrate and produce sound.
- the elastic support components 23 are opposite to the diaphragm 21 and are arranged at intervals.
- the elastic support assembly 23 is fixed to the basin frame 1 and connected to the side of the voice coil 22 away from the diaphragm 21 .
- the elastic support assembly 23 includes an elastic member 231 fixed to the basin frame 1 and connected to the voice coil 22 , and an auxiliary diaphragm 232 attached to the elastic member 231 .
- the elastic support assembly 22 is used to strengthen the vibration effect of the diaphragm 21, so that the acoustic performance of the sound-emitting device 100 is good.
- the magnetic circuit system 3 is fixed to the basin frame 1 .
- the magnetic circuit system 3 drives the vibration system 2 to vibrate and sound.
- the magnetic circuit system 3 includes a magnetic yoke 31 , a main magnetic steel 32 and a secondary magnetic steel 33 .
- the diaphragm 21 and the magnetic yoke 31 are respectively disposed on opposite sides of the sound generating device 100 . Specifically, the diaphragm 21 and the magnetic yoke 31 are respectively fixed on opposite sides of the basin frame 1 .
- the magnetic yoke 31 includes a magnetic yoke body 311 , an extension portion 312 bent and extended from the outer periphery of the magnetic yoke main body 311 , and a fixed portion bent and extended from the extension portion 312 in a direction away from the magnetic yoke body 311 .
- the fixing portion 313 is fixed to the vibration system 2 .
- the yoke 31 is fixed to the basin frame 1 .
- the fixing portion 313 is fixed to the basin frame 1 .
- the extension portion 312 extends from the fixing portion 313 in a direction away from the elastic support element 23 , so that the extension portion 312 forms an avoidance structure with the elastic support element 23 .
- the main magnetic steel 32 and the secondary magnetic steel 33 are respectively fixed to the yoke body 311 .
- the auxiliary magnetic steel 33 surrounds the main magnetic steel 32 and is spaced apart from the main magnetic steel 32 to form a magnetic gap 30 , and the voice coil 22 is inserted into the magnetic gap 30 .
- the breathable spacer 4 is attached and fixed to the magnetic yoke 31 .
- the air-permeable spacer 4 completely fits and covers the yoke body 311 , the extending portion 312 and the fixing portion 313 .
- the vibrating membrane 21 , the magnetic yoke 31 and the air-permeable spacer 4 together form a sound-emitting inner cavity 10 .
- the basin frame 1 , the vibrating membrane 21 , the magnetic yoke 31 and the air-permeable spacer 4 together enclose the sounding inner cavity 10 .
- the voice coil 22 , the elastic support component 23 , the main magnetic steel 32 and the secondary magnetic steel 33 are all located in the sounding inner cavity 10 .
- the magnetic yoke 31 is provided with a leakage hole 310 therethrough. Specifically, the leakage hole 310 is located in the extension portion 312 . The sounding cavity 10 is connected to the outside through the leakage hole 310 .
- the elastic support assembly 23 is disposed opposite to the leakage hole 310 , and this structure makes the air pressure balance between the sounding inner cavity 10 and the outside world good, so that the sounding device 100 has good acoustic performance.
- the yoke body 311 is rectangular with rounded corners.
- the leakage holes 310 include four and are respectively located at the rounded positions of the extension portion 312 close to the yoke body 311 . This arrangement is beneficial for the air in the sound-emitting cavity 10 to be connected to the outside through the four leakage holes 310 evenly, so that the air pressure balance between the sound-emitting cavity 10 and the outside is better, so that the sound-emitting device 100 has a better air pressure balance. Better acoustic performance.
- the yoke body 311 is rectangular, and the leakage holes 310 include two and are respectively disposed on opposite sides of the yoke body 311 .
- This structure can also make the air pressure balance between the sound-emitting inner cavity 10 and the outside world good, so that the sound-emitting device 100 has good acoustic performance.
- the gas permeable spacer 4 completely covers the leakage hole 310 .
- the air-permeable spacer 4 matches the three-dimensional shape of the magnetic yoke 31 and completely covers the side of the magnetic yoke 31 away from the diaphragm 21 . Therefore, when the sound-emitting device 100 is applied to a speaker box, the back cavity of the speaker box is filled with sound-absorbing particles, and this structure avoids the risk of the sound-absorbing particles leaking into the sound-emitting inner cavity 10 of the sound-emitting device 100, thereby improving the performance of the sound-absorbing particles. The reliability of the sound-emitting device 100 is improved.
- the air-permeable spacer 4 and the magnetic yoke 31 are integrally formed by hot pressing.
- this structure is beneficial to ensure the risk of powder leakage of the sound-absorbing particles in the rear cavity of the speaker box, and on the other hand, it can also make the sound-emitting
- the device 100 is easier to assemble and manufacture, thereby improving the production efficiency and yield of the sound-emitting device 100 .
- the breathable spacer 4 is a mesh cloth or a metal mesh.
- materials that can be breathable and can isolate sound-absorbing particles can be used according to actual needs, such as non-woven fabrics, breathable plastic films, and the like.
- the present invention also provides a speaker box, which includes the sound-generating device 100 as described above. Because the ventilating spacer 4 and the magnetic yoke 31 are integrally formed by hot pressing of the sound generating device 100 , the risk of powder leakage from the sound absorbing particles in the rear cavity of the speaker box can be effectively avoided.
- the present invention also provides an integrated hot pressing molding method, which includes an upper mold and a lower mold for hot pressing molding and matching the shape of the magnetic yoke 31 , and the integrated hot pressing molding method is applied to the sound-emitting device 100 .
- the one-piece hot pressing forming method includes the following steps:
- Step S1 applying glue on the side of the magnetic yoke 31 that is located away from the diaphragm 21 .
- step S1 the process of applying the glue adopts the spraying process, which makes the distribution of the glue more balanced.
- Step S2 put the magnetic yoke 31 into the lower mold and position it, wherein the opposite side of the magnetic yoke 31 coated with glue is abutted against the lower mold.
- step S3 the raw material of the air-permeable spacer 4 is put into the lower mold.
- the raw material is the air-permeable spacer 4 that has not been cut, that is, the mesh or metal mesh that has not been cut.
- Step S4 pressing the upper mold and the lower mold, so that the upper mold compresses the raw material and abuts the magnetic yoke 31 .
- the upper mold is pushed toward the lower mold to press the raw material and abut the magnetic yoke 31 .
- the upper mold can also be ventilated, and the raw material can be compressed and abutted against the magnetic yoke 31 by air pressure. This method has a good bonding effect and generates few bubbles.
- Step S5 heating and maintaining the pressure of the upper mold and the lower mold, so that the raw material and the magnetic yoke 31 are integrally formed.
- the specific heating temperature and the pressing pressure need to be selected by the designer according to the specific material of the breathable spacer 4 .
- step S6 the integrally formed raw material and the magnetic yoke 31 are demolded from the upper mold and the lower mold, and the raw material outside the magnetic yoke 31 is cut off by a laser.
- the efficiency of laser ablation is good, especially when the volume of the sound-emitting device 100 is small and the machining accuracy is high, the use of laser ablation can avoid damage to the sound-emitting device 100, and can also improve production efficiency.
- the integrated hot-pressing molding method of the present invention is easy to manufacture, and the sound-emitting device 100 can be easily assembled and manufactured, and at the same time, the risk of leakage of sound-absorbing particles into the sound-emitting cavity 10 of the sound-emitting device 100 is avoided, and the sound-emitting device 100 is improved. reliability.
- the sound-generating device and the speaker box of the present invention match the three-dimensional shape of the air-permeable spacer with the magnetic yoke and completely cover the side of the magnetic yoke away from the diaphragm, and use the
- the ventilating spacer and the magnetic yoke are integrally hot-pressed, so that the ventilating spacer completely covers the magnetic yoke, so that when the sound-emitting device is applied to the speaker box, the back cavity of the speaker box is filled with sound-absorbing particles, which
- the structure avoids the risk of the sound-absorbing particles leaking into the sound-emitting inner cavity of the sound-emitting device, thereby improving reliability and being easy to assemble and manufacture.
- the integrated hot pressing forming method of the present invention adopts the following steps: step S1, applying glue on the side of the magnetic yoke that is located away from the vibrating film; step S2, placing the magnetic yoke into the lower mold and positioning, wherein the magnetic yoke is coated with glue The opposite side is in contact with the lower mold; step S3, put the raw material of the air-permeable spacer into the lower mold; step S4, press the upper mold with the lower mold, so that the upper mold compresses the raw material and abuts against the magnetic yoke; step S5, heating and pressure-holding the upper mold and the lower mold, so that the raw material and the magnetic yoke are integrally formed; step S6, demolding the integrally formed raw material and the magnetic yoke from the upper mold and the lower mold, and laser The material outside the yoke is removed.
- the integrated hot-pressing molding method of the present invention is easy to manufacture, and can make the sound-emitting device easy to assemble and manufacture, and also avoids the risk of the sound-absorbing particles leaking powder into the sound-emitting inner cavity of the sound-emitting device, and improves the reliability of the sound-emitting device.
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- Acoustics & Sound (AREA)
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- Manufacturing & Machinery (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The present invention provides a sound generation device, comprising a vibration system, a magnetic circuit system, and a ventilation isolation member. The vibration system comprises a diaphragm; the magnetic circuit system comprises a magnet yoke; the diaphragm and the magnet yoke are respectively arranged on two opposite sides of the sound generation device; the diaphragm, the magnet yoke and the ventilation isolation member jointly enclose a sound generation inner cavity; the magnet yoke is provided with a leakage hole; the sound generation inner cavity is connected to the outside by means of the leakage hole; the ventilation isolation member is attached and fixed to the magnet yoke and completely covers the leakage hole; the ventilation isolation member matches the magnet yoke in three-dimensional shape and completely covers a side of the magnet yoke away from the diaphragm; and the ventilation isolation member and the magnet yoke are integrally formed in a hot-press forming manner. The present invention provides a loudspeaker box using the sound generation device. The present invention provides an integrated hot-press forming method applied to a sound generation device. Compared with the related art, the sound generation device, the loudspeaker box and the integrated hot-press forming method solve the problem of sound-absorbing particles outside of the sound generation device leaking into the sound generation inner cavity, such that the reliability is improved, and assembly and manufacturing are easy.
Description
本发明涉及电声转换领域,尤其涉及一种运用于便携式电子产品的发声器件、扬声器箱及一体热压成型方法。
The invention relates to the field of electro-acoustic conversion, in particular to a sound-generating device, a speaker box and an integrated hot-pressing molding method used in portable electronic products.
随着移动互联网时代的到来,智能移动设备的数量不断上升。而在众多移动设备之中,手机无疑是最常见、最便携的移动终端设备。目前,手机的功能极其多样,其中之一便是高品质的音乐功能,因此,用于播放声音的发声器件被大量应用到现在的智能移动设备之中。With the advent of the mobile Internet era, the number of smart mobile devices continues to rise. Among many mobile devices, mobile phones are undoubtedly the most common and portable mobile terminal devices. At present, the functions of mobile phones are extremely diverse, one of which is the high-quality music function. Therefore, sound-generating devices for playing sound are widely used in smart mobile devices.
相关技术的所述发声器件包括盆架、分别固定于所述盆架的振动系统和驱动所述振动系统振动发声的磁路系统以及透气隔离件,所述振动系统包括固定于盆架的振膜,所述磁路系统包括固定于所述盆架的磁轭,所述透气隔离件同时固定于所述盆架与所述磁轭,且所述盆架、所述振膜、所述磁轭以及所述阻尼件共同围成发声内腔,所述磁轭设有贯穿其上的泄漏孔,所述发声内腔通过所述泄漏孔与外界连接,所述透气隔离件贴合固定于所述磁轭并完全覆盖所述泄漏孔。The sound-generating device of the related art includes a basin frame, a vibration system respectively fixed to the basin frame, a magnetic circuit system for driving the vibration system to vibrate and emit sound, and a ventilating isolator, and the vibration system includes a diaphragm fixed to the basin frame. , the magnetic circuit system includes a magnetic yoke fixed on the basin frame, the ventilating spacer is fixed on the basin frame and the magnetic yoke at the same time, and the basin frame, the diaphragm, the magnetic yoke and the damping member together to form a sounding inner cavity, the yoke is provided with a leakage hole passing through it, the sounding inner cavity is connected to the outside through the leakage hole, and the air-permeable isolator is fitted and fixed to the yoke and completely cover the leak hole.
然而,相关技术中所述发声器件中,所述透气隔离件单独覆盖所述泄漏孔,当所述泄漏孔为多个时,每个所述泄漏孔采用一块所述透气隔离件单独覆盖,该工艺较为复杂,也同时容易出现误差,使得所述泄漏孔不能完全被覆盖,当发声器件应用于扬声器箱时,扬声器箱的后腔填入吸音颗粒,所述透气隔离件用于将吸音颗粒封装于发声内腔外面,当工艺出现误差时,吸音颗粒容易漏粉到发声器件的发声内腔内部,引起性能降低,可靠性低。However, in the sound-emitting device in the related art, the air-permeable spacer covers the leakage holes alone. When there are multiple leakage holes, each of the leakage holes is covered with a piece of the air-permeable spacer. The process is complicated, and errors are prone to occur at the same time, so that the leakage hole cannot be completely covered. When the sound-emitting device is applied to the speaker box, the back cavity of the speaker box is filled with sound-absorbing particles, and the breathable spacer is used to encapsulate the sound-absorbing particles. Outside the sound-emitting cavity, when there is an error in the process, the sound-absorbing particles are likely to leak powder into the sound-emitting cavity of the sound-emitting device, resulting in performance degradation and low reliability.
因此,实有必要提供一种新的发声器件、扬声器箱及方法解决上述技术问题。Therefore, it is necessary to provide a new sound generating device, speaker box and method to solve the above technical problems.
本发明的目的是克服上述技术问题,提供一种用于解决发声器件外部的吸音颗粒漏粉到发声内腔,从而提高了可靠性并易于组装制造的发声器件、扬声器箱及一体热压成型方法。The purpose of the present invention is to overcome the above-mentioned technical problems, and to provide a sound-emitting device, a speaker box and an integrated hot-pressing method for solving the problem that the sound-absorbing particles outside the sound-emitting device leak powder into the sound-emitting cavity, thereby improving reliability and being easy to assemble and manufacture. .
为了实现上述目的,本发明提供一种发声器件,其包括振动系统、驱动所述振动系统振动发声的磁路系统以及透气隔离件;所述振动系统包括用于振动发声的振膜,所述磁路系统包括磁轭,所述振膜与所述磁轭分别设置于所述发声器件的相对两侧,所述振膜、所述磁轭以及所述透气隔离件共同围成发声内腔,所述磁轭设有贯穿其上的泄漏孔,所述发声内腔通过所述泄漏孔与外界连接,所述透气隔离件贴合固定于所述磁轭并完全覆盖所述泄漏孔,所述透气隔离件与所述磁轭的立体形状匹配且完全覆盖于所述磁轭远离所述振膜的一侧;所述透气隔离件与所述磁轭一体热压成型。In order to achieve the above object, the present invention provides a sound-generating device, which includes a vibration system, a magnetic circuit system for driving the vibration system to vibrate and sound, and a ventilating isolator; the vibration system includes a diaphragm for vibration and sound, and the magnetic The circuit system includes a magnetic yoke, the diaphragm and the magnetic yoke are respectively arranged on opposite sides of the sound-emitting device, and the diaphragm, the magnetic yoke and the air-permeable spacer together form a sound-emitting inner cavity, so The magnetic yoke is provided with a leakage hole passing through it, the sounding inner cavity is connected to the outside through the leakage hole, and the breathable spacer is fitted and fixed to the magnetic yoke and completely covers the leakage hole. The spacer is matched with the three-dimensional shape of the magnetic yoke and completely covers the side of the magnetic yoke away from the vibrating membrane; the air-permeable spacer and the magnetic yoke are integrally formed by hot pressing.
更优的,所述磁轭包括磁轭本体、由所述磁轭本体的外周缘弯折延伸的延伸部以及由所述延伸部向远离所述磁轭本体的方向弯折延伸的固定部,所述泄漏孔位于所述延伸部,所述固定部与所述振动系统固定;所述透气隔离件完全贴合覆盖所述磁轭本体、所述延伸部及所述固定部。More preferably, the magnetic yoke includes a magnetic yoke body, an extension portion bent and extended from the outer peripheral edge of the magnetic yoke body, and a fixed portion bent and extended from the extension portion in a direction away from the magnetic yoke body, The leakage hole is located in the extension part, and the fixing part is fixed with the vibration system; the air-permeable isolator completely fits and covers the yoke body, the extension part and the fixing part.
更优的,所述磁轭本体呈矩形,所述泄漏孔包括两个且分别设置于所述磁轭本体的相对两侧。More preferably, the yoke body is rectangular, and the leakage holes include two and are respectively disposed on opposite sides of the yoke body.
更优的,所述磁轭本体呈带圆角的矩形,所述泄漏孔包括四个且分别位于所述延伸部靠近所述磁轭本体的圆角位置。More preferably, the magnetic yoke body is in the shape of a rectangle with rounded corners, and the leakage holes include four and are respectively located at the rounded corner positions of the extension portion close to the magnetic yoke body.
更优的,所述透气隔离件为网布或者金属网。More preferably, the breathable spacer is a mesh cloth or a metal mesh.
更优的,所述发声器件还包括盆架,所述振膜和所述磁轭分别固定于所述盆架的相对两侧,所述盆架、所述振膜、所述磁轭以及所述透气隔离件共同围成所述发声内腔。More preferably, the sound-generating device further includes a basin frame, the diaphragm and the magnetic yoke are respectively fixed on opposite sides of the basin frame, the basin frame, the diaphragm, the magnetic yoke and the The air-permeable spacers together form the sounding inner cavity.
更优的,所述振膜包括振膜本体和由所述振膜本体向所述盆架的方向弯折延伸形成的振膜侧壁,所述振膜侧壁固定于所述盆架的外侧。More preferably, the diaphragm includes a diaphragm body and a diaphragm side wall formed by bending and extending the diaphragm body in the direction of the basin frame, and the diaphragm side wall is fixed on the outer side of the basin frame. .
更优的,所述振动系统还包括位于所述发声内腔并与所述振膜相对且间隔设置的弹性支撑组件,所述延伸部由所述固定部向远离所述弹性支撑组件的方向延伸以使所述延伸部形成与所述弹性支撑组件避让结构,所述弹性支撑组件与所述泄漏孔正对设置。More preferably, the vibration system further includes an elastic support component located in the sounding inner cavity and opposite to the diaphragm and arranged at intervals, and the extension portion extends from the fixing portion to a direction away from the elastic support component So that the extension part forms an avoidance structure with the elastic support component, and the elastic support component is disposed opposite to the leakage hole.
本发明还提供一种扬声器箱,该扬声器箱包括如上任意一项所述的发声器件。The present invention also provides a loudspeaker box, the loudspeaker box includes the sound-generating device described in any one of the above.
本发明还提供一种一体热压成型方法,其包括用于热压成型且与所述磁轭形状匹配的上模具和下模具,该方法应用于如上任意一项所述的发声器件,该方法包括如下步骤:The present invention also provides an integrated hot press molding method, which includes an upper mold and a lower mold for hot press molding and matching the shape of the magnetic yoke. It includes the following steps:
步骤S1、在所述磁轭位于远离所述振膜的一侧涂胶水;Step S1, applying glue on the side of the magnetic yoke that is located away from the diaphragm;
步骤S2、将所述磁轭放入所述下模具内并定位,其中,所述磁轭涂有胶水的相对一侧抵接于所述下模具;Step S2, putting the magnetic yoke into the lower mold and positioning, wherein the opposite side of the magnetic yoke coated with glue is abutted against the lower mold;
步骤S3、再将所述透气隔离件的原料放入所述下模具内;Step S3, then put the raw material of the breathable spacer into the lower mold;
步骤S4、将所述上模具与所述下模具压合,以使所述上模具将所述原料压紧并抵接于所述磁轭;Step S4, pressing the upper mold and the lower mold, so that the upper mold compresses the raw material and abuts the magnetic yoke;
步骤S5、将所述上模具和所述下模具加热和保压,以使所述原料与所述磁轭一体成型;Step S5, heating and maintaining the pressure of the upper mold and the lower mold, so that the raw material and the magnetic yoke are integrally formed;
步骤S6、将一体成型的所述原料与所述磁轭从所述上模具和所述下模具中脱模,并通过激光将所述磁轭外的所述原料切除。In step S6, the integrally formed raw material and the magnetic yoke are demolded from the upper mold and the lower mold, and the raw material outside the magnetic yoke is cut off by a laser.
与现有技术相比,本发明的发声器件和扬声器箱将所述透气隔离件与所述磁轭的立体形状匹配且完全覆盖于所述磁轭远离所述振膜的一侧,并采用所述透气隔离件与所述磁轭一体热压成型,从而使得所述透气隔离件完全将所述磁轭覆盖,从而当发声器件应用于扬声器箱时,扬声器箱的后腔填入吸音颗粒,该结构避免了吸音颗粒漏粉到发声器件的发声内腔内部的风险,从而提高了可靠性并易于组装制造。本发明的一体热压成型方法采用如下步骤:步骤S1、在磁轭位于远离振膜的一侧涂胶水;步骤S2、将磁轭放入下模具内并定位,其中,磁轭涂有胶水的相对一侧抵接于下模具;步骤S3、再将透气隔离件的原料放入下模具内;步骤S4、将上模具与下模具压合,以使上模具将原料压紧并抵接于磁轭;步骤S5、将上模具和下模具加热和保压,以使原料与磁轭一体成型;步骤S6、将一体成型的原料与磁轭从上模具和下模具中脱模,并通过激光将磁轭外的原料切除。通过上述步骤,本发明的一体热压成型方法易于制造,并可以使得发声器件易于组装制造,同时也避免了吸音颗粒漏粉到发声器件的发声内腔内部的风险,提高发声器件的可靠性。Compared with the prior art, the sound-generating device and the speaker box of the present invention match the three-dimensional shape of the air-permeable spacer with the magnetic yoke and completely cover the side of the magnetic yoke away from the diaphragm, and use the The ventilating spacer and the magnetic yoke are integrally hot-pressed, so that the ventilating spacer completely covers the magnetic yoke, so that when the sound-emitting device is applied to the speaker box, the back cavity of the speaker box is filled with sound-absorbing particles, which The structure avoids the risk of the sound-absorbing particles leaking into the sound-emitting inner cavity of the sound-emitting device, thereby improving reliability and being easy to assemble and manufacture. The integrated hot pressing forming method of the present invention adopts the following steps: step S1, applying glue on the side of the magnetic yoke that is located away from the vibrating film; step S2, placing the magnetic yoke into the lower mold and positioning, wherein the magnetic yoke is coated with glue The opposite side is in contact with the lower mold; step S3, put the raw material of the air-permeable spacer into the lower mold; step S4, press the upper mold with the lower mold, so that the upper mold compresses the raw material and abuts against the magnetic yoke; step S5, heating and pressure-holding the upper mold and the lower mold, so that the raw material and the magnetic yoke are integrally formed; step S6, demolding the integrally formed raw material and the magnetic yoke from the upper mold and the lower mold, and laser The material outside the yoke is removed. Through the above steps, the integrated hot-pressing molding method of the present invention is easy to manufacture, and can make the sound-emitting device easy to assemble and manufacture, and also avoids the risk of the sound-absorbing particles leaking powder into the sound-emitting inner cavity of the sound-emitting device, and improves the reliability of the sound-emitting device.
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它的附图,其中:In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, under the premise of no creative work, other drawings can also be obtained from these drawings, wherein:
图1为本发明发声器件的立体结构示意图;Fig. 1 is the three-dimensional structure schematic diagram of the sound-emitting device of the present invention;
图2为本发明发声器件的另一角度的立体结构示意图;FIG. 2 is a schematic three-dimensional structure diagram of another angle of the sound-emitting device of the present invention;
图3为本发明发声器件的部分立体结构分解图;3 is an exploded view of a partial three-dimensional structure of the sound-emitting device of the present invention;
图4为本发明一体热压成型方法的流程框图。FIG. 4 is a flow chart of the one-piece hot pressing forming method of the present invention.
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
请同时参阅图1-3,本发明提供了一种发声器件100,所述发声器件100包括盆架1 、振动系统2、磁路系统3以及透气隔离件4。Please refer to FIGS. 1-3 at the same time, the present invention provides a sound-generating device 100 , the sound-generating device 100 includes a basin frame 1 , a vibration system 2 , a magnetic circuit system 3 and a ventilating spacer 4 .
所述盆架1用于固定所述振动系统2和所述磁路系统3。在本实施方式中,所述盆架1呈矩形。当然,所述发声器件100也可以不设置所述盆架1,所述振动系统2与所述磁路系统3形成固定也是可以的。The basin frame 1 is used to fix the vibration system 2 and the magnetic circuit system 3 . In this embodiment, the basin frame 1 is rectangular. Of course, the sound-generating device 100 may not be provided with the basin frame 1, and the vibration system 2 and the magnetic circuit system 3 may be fixed to each other.
所述振动系统2固定于所述盆架1。具体的,所述振动系统2包括振膜21、音圈22及弹性支撑组件23。The vibration system 2 is fixed to the basin frame 1 . Specifically, the vibration system 2 includes a diaphragm 21 , a voice coil 22 and an elastic support component 23 .
所述振膜21用于振动发声。所述振膜21固定于所述盆架1。具体的,所述振膜21包括振膜本体211和由所述振膜本体211向所述盆架1的方向弯折延伸形成的振膜侧壁212,所述振膜侧壁212固定于所述盆架1的外侧。该结构使得所述振膜21与所述盆架1形成密封性好的固定结构。The diaphragm 21 is used for vibrating and producing sound. The diaphragm 21 is fixed to the basin frame 1 . Specifically, the diaphragm 21 includes a diaphragm body 211 and a diaphragm sidewall 212 formed by bending the diaphragm body 211 toward the basin frame 1 , and the diaphragm sidewall 212 is fixed on the the outside of the basin frame 1. This structure enables the diaphragm 21 and the basin frame 1 to form a fixed structure with good sealing performance.
所述音圈22固定于所述振膜21,所述音圈22用于驱动所述振膜21振动发声。The voice coil 22 is fixed to the diaphragm 21, and the voice coil 22 is used to drive the diaphragm 21 to vibrate and produce sound.
所述弹性支撑组件23与所述振膜21相对且间隔设置。所述弹性支撑组件23固定于所述盆架1并连接于所述音圈22远离所述振膜21一侧。具体的,所述弹性支撑组件23包括固定于所述盆架1并连接于所述音圈22的弹性件231和贴设于所述弹性件231的辅助振膜232。所述弹性支撑组件22用于加强所述振膜21的振动效果, 使所述发声器件100的声学性能好。The elastic support components 23 are opposite to the diaphragm 21 and are arranged at intervals. The elastic support assembly 23 is fixed to the basin frame 1 and connected to the side of the voice coil 22 away from the diaphragm 21 . Specifically, the elastic support assembly 23 includes an elastic member 231 fixed to the basin frame 1 and connected to the voice coil 22 , and an auxiliary diaphragm 232 attached to the elastic member 231 . The elastic support assembly 22 is used to strengthen the vibration effect of the diaphragm 21, so that the acoustic performance of the sound-emitting device 100 is good.
所述磁路系统3固定于所述盆架1。所述磁路系统3驱动所述振动系统2振动发声。具体的,所述磁路系统3包括磁轭31、主磁钢32和副磁钢33。The magnetic circuit system 3 is fixed to the basin frame 1 . The magnetic circuit system 3 drives the vibration system 2 to vibrate and sound. Specifically, the magnetic circuit system 3 includes a magnetic yoke 31 , a main magnetic steel 32 and a secondary magnetic steel 33 .
所述振膜21与所述磁轭31分别设置于所述发声器件100的相对两侧。具体的,所述振膜21和所述磁轭31分别固定于所述盆架1的相对两侧。The diaphragm 21 and the magnetic yoke 31 are respectively disposed on opposite sides of the sound generating device 100 . Specifically, the diaphragm 21 and the magnetic yoke 31 are respectively fixed on opposite sides of the basin frame 1 .
所述磁轭31包括磁轭本体311、由所述磁轭本体311的外周缘弯折延伸的延伸部312以及由所述延伸部312向远离所述磁轭本体311的方向弯折延伸的固定部313。所述固定部313与所述振动系统2固定。所述磁轭31固定于所述盆架1。具体的,所述固定部313固定于所述盆架1。所述延伸部312由所述固定部313向远离所述弹性支撑组件23的方向延伸,以使所述延伸部312形成与所述弹性支撑组件23避让结构。The magnetic yoke 31 includes a magnetic yoke body 311 , an extension portion 312 bent and extended from the outer periphery of the magnetic yoke main body 311 , and a fixed portion bent and extended from the extension portion 312 in a direction away from the magnetic yoke body 311 . Section 313. The fixing portion 313 is fixed to the vibration system 2 . The yoke 31 is fixed to the basin frame 1 . Specifically, the fixing portion 313 is fixed to the basin frame 1 . The extension portion 312 extends from the fixing portion 313 in a direction away from the elastic support element 23 , so that the extension portion 312 forms an avoidance structure with the elastic support element 23 .
所述主磁钢32和所述副磁钢33分别固定于所述磁轭本体311。The main magnetic steel 32 and the secondary magnetic steel 33 are respectively fixed to the yoke body 311 .
所述副磁钢33环绕所述主磁钢32并与所述主磁钢32间隔设置形成磁间隙30,所述音圈22插入所述磁间隙30。The auxiliary magnetic steel 33 surrounds the main magnetic steel 32 and is spaced apart from the main magnetic steel 32 to form a magnetic gap 30 , and the voice coil 22 is inserted into the magnetic gap 30 .
所述透气隔离件4贴合固定于所述磁轭31。具体的,所述透气隔离件4完全贴合覆盖所述磁轭本体311、所述延伸部312及所述固定部313。所述振膜21、所述磁轭31以及所述透气隔离件4共同围成发声内腔10。本实施方式中,所述盆架1、所述振膜21、所述磁轭31以及所述透气隔离件4共同围成所述发声内腔10。所述音圈22、所述弹性支撑组件23、所述主磁钢32以及所述副磁钢33均位于所述发声内腔10。The breathable spacer 4 is attached and fixed to the magnetic yoke 31 . Specifically, the air-permeable spacer 4 completely fits and covers the yoke body 311 , the extending portion 312 and the fixing portion 313 . The vibrating membrane 21 , the magnetic yoke 31 and the air-permeable spacer 4 together form a sound-emitting inner cavity 10 . In this embodiment, the basin frame 1 , the vibrating membrane 21 , the magnetic yoke 31 and the air-permeable spacer 4 together enclose the sounding inner cavity 10 . The voice coil 22 , the elastic support component 23 , the main magnetic steel 32 and the secondary magnetic steel 33 are all located in the sounding inner cavity 10 .
为了使得所述发声内腔10与外界的气压平衡,从而使得所述发声器件100声学性能好,所述磁轭31设有贯穿其上的泄漏孔310。具体的,所述泄漏孔310位于所述延伸部312。所述发声内腔10通过所述泄漏孔310与外界连接。所述弹性支撑组件23与所述泄漏孔310正对设置,该结构使得所述发声内腔10与外界的气压平衡性好,从而使得所述发声器件100声学性能好。In order to balance the sounding cavity 10 with the air pressure outside, so that the sounding device 100 has good acoustic performance, the magnetic yoke 31 is provided with a leakage hole 310 therethrough. Specifically, the leakage hole 310 is located in the extension portion 312 . The sounding cavity 10 is connected to the outside through the leakage hole 310 . The elastic support assembly 23 is disposed opposite to the leakage hole 310 , and this structure makes the air pressure balance between the sounding inner cavity 10 and the outside world good, so that the sounding device 100 has good acoustic performance.
本实施方式中,所述磁轭本体311呈带圆角的矩形。所述泄漏孔310包括四个且分别位于所述延伸部312靠近所述磁轭本体311的圆角位置。该设置有利于所述发声内腔10的空气均匀地通过四个所述泄漏孔310与外界连接,从而使得所述发声内腔10与外界的气压平衡性更好,从而使得所述发声器件100声学性能更好。In this embodiment, the yoke body 311 is rectangular with rounded corners. The leakage holes 310 include four and are respectively located at the rounded positions of the extension portion 312 close to the yoke body 311 . This arrangement is beneficial for the air in the sound-emitting cavity 10 to be connected to the outside through the four leakage holes 310 evenly, so that the air pressure balance between the sound-emitting cavity 10 and the outside is better, so that the sound-emitting device 100 has a better air pressure balance. Better acoustic performance.
当然,不限于此,在另一实施例中,所述磁轭本体311呈矩形,所述泄漏孔310包括两个且分别设置于所述磁轭本体311的相对两侧。该结构也可以使得所述发声内腔10与外界的气压平衡性好,从而使得所述发声器件100声学性能好。Of course, it is not limited to this. In another embodiment, the yoke body 311 is rectangular, and the leakage holes 310 include two and are respectively disposed on opposite sides of the yoke body 311 . This structure can also make the air pressure balance between the sound-emitting inner cavity 10 and the outside world good, so that the sound-emitting device 100 has good acoustic performance.
所述透气隔离件4完全覆盖所述泄漏孔310。所述透气隔离件4与所述磁轭31的立体形状匹配且完全覆盖于所述磁轭31远离所述振膜21的一侧。从而当所述发声器件100应用于扬声器箱时,扬声器箱的后腔填入吸音颗粒,该结构避免了吸音颗粒漏粉到所述发声器件100的所述发声内腔10内部的风险,从而提高了所述发声器件100可靠性。The gas permeable spacer 4 completely covers the leakage hole 310 . The air-permeable spacer 4 matches the three-dimensional shape of the magnetic yoke 31 and completely covers the side of the magnetic yoke 31 away from the diaphragm 21 . Therefore, when the sound-emitting device 100 is applied to a speaker box, the back cavity of the speaker box is filled with sound-absorbing particles, and this structure avoids the risk of the sound-absorbing particles leaking into the sound-emitting inner cavity 10 of the sound-emitting device 100, thereby improving the performance of the sound-absorbing particles. The reliability of the sound-emitting device 100 is improved.
为了使得所述透气隔离件4与所述磁轭31的立体形状匹配,所述透气隔离件4与所述磁轭31一体热压成型。一体热压成型的所述透气隔离件4与所述磁轭31形成一体结构,该结构一方面有利于保证扬声器箱的后腔的吸音颗粒漏粉的风险,另一方面还可以使得所述发声器件100组装制造更为容易,从而提高所述发声器件100生产效率和良品率。In order to match the three-dimensional shapes of the air-permeable spacer 4 and the magnetic yoke 31 , the air-permeable spacer 4 and the magnetic yoke 31 are integrally formed by hot pressing. The air-permeable spacer 4 and the magnetic yoke 31, which are integrally hot-pressed, form an integral structure. On the one hand, this structure is beneficial to ensure the risk of powder leakage of the sound-absorbing particles in the rear cavity of the speaker box, and on the other hand, it can also make the sound-emitting The device 100 is easier to assemble and manufacture, thereby improving the production efficiency and yield of the sound-emitting device 100 .
本实施方式中,所述透气隔离件4为网布或者金属网。当然,不限于此,可以透气并可以隔离吸音颗粒的材料均可以根据实际需要采用,例如无纺布,透气塑料薄膜等。In this embodiment, the breathable spacer 4 is a mesh cloth or a metal mesh. Of course, it is not limited to this, and materials that can be breathable and can isolate sound-absorbing particles can be used according to actual needs, such as non-woven fabrics, breathable plastic films, and the like.
本发明还提供一种扬声器箱,该扬声器箱包括如所述发声器件100。因所述发声器件100的一体热压成型的所述透气隔离件4与所述磁轭31可以有效避免扬声器箱的后腔的吸音颗粒漏粉的风险。The present invention also provides a speaker box, which includes the sound-generating device 100 as described above. Because the ventilating spacer 4 and the magnetic yoke 31 are integrally formed by hot pressing of the sound generating device 100 , the risk of powder leakage from the sound absorbing particles in the rear cavity of the speaker box can be effectively avoided.
本发明还提供一种一体热压成型方法,其包括用于热压成型且与所述磁轭31形状匹配的上模具和下模具,所述一体热压成型方法应用于所述发声器件100。The present invention also provides an integrated hot pressing molding method, which includes an upper mold and a lower mold for hot pressing molding and matching the shape of the magnetic yoke 31 , and the integrated hot pressing molding method is applied to the sound-emitting device 100 .
请参阅图4,所述一体热压成型方法包括如下步骤:Please refer to FIG. 4 , the one-piece hot pressing forming method includes the following steps:
步骤S1、在所述磁轭31位于远离所述振膜21的一侧涂胶水。Step S1 , applying glue on the side of the magnetic yoke 31 that is located away from the diaphragm 21 .
所述步骤S1中,所涂胶水的工艺采用喷涂工艺,该工艺使得胶水分布更为均衡。In the step S1, the process of applying the glue adopts the spraying process, which makes the distribution of the glue more balanced.
步骤S2、将所述磁轭31放入所述下模具内并定位,其中,所述磁轭31涂有胶水的相对一侧抵接于所述下模具。Step S2, put the magnetic yoke 31 into the lower mold and position it, wherein the opposite side of the magnetic yoke 31 coated with glue is abutted against the lower mold.
步骤S3、再将所述透气隔离件4的原料放入所述下模具内。In step S3, the raw material of the air-permeable spacer 4 is put into the lower mold.
所述步骤S3中,所述原料为未进行裁剪的所述透气隔离件4,即未进行裁剪的网布或者金属网。In the step S3, the raw material is the air-permeable spacer 4 that has not been cut, that is, the mesh or metal mesh that has not been cut.
步骤S4、将所述上模具与所述下模具压合,以使所述上模具将所述原料压紧并抵接于所述磁轭31。Step S4 , pressing the upper mold and the lower mold, so that the upper mold compresses the raw material and abuts the magnetic yoke 31 .
所述步骤S4中,采用将所述上模具向所述下模具推进将所述原料压紧并抵接于所述磁轭31。当然,不限于此,还可以通过在所述上模具通气,采用气压将所述原料压紧并抵接于所述磁轭31,该方法贴合的效果好,产生的气泡少。In the step S4 , the upper mold is pushed toward the lower mold to press the raw material and abut the magnetic yoke 31 . Of course, it is not limited to this, and the upper mold can also be ventilated, and the raw material can be compressed and abutted against the magnetic yoke 31 by air pressure. This method has a good bonding effect and generates few bubbles.
步骤S5、将所述上模具和所述下模具加热和保压,以使所述原料与所述磁轭31一体成型。具体的加热温度和加压的压力大小,均需要设计者根据所述透气隔离件4的具体材料进行选择。Step S5 , heating and maintaining the pressure of the upper mold and the lower mold, so that the raw material and the magnetic yoke 31 are integrally formed. The specific heating temperature and the pressing pressure need to be selected by the designer according to the specific material of the breathable spacer 4 .
步骤S6、将一体成型的所述原料与所述磁轭31从所述上模具和所述下模具中脱模,并通过激光将所述磁轭31外的所述原料切除。激光切除的效率好,尤其在所述发声器件100的体积小,加工精度高的情况下,采用激光切除可以避免损坏所述发声器件100,同时也可以提高生产效率。In step S6, the integrally formed raw material and the magnetic yoke 31 are demolded from the upper mold and the lower mold, and the raw material outside the magnetic yoke 31 is cut off by a laser. The efficiency of laser ablation is good, especially when the volume of the sound-emitting device 100 is small and the machining accuracy is high, the use of laser ablation can avoid damage to the sound-emitting device 100, and can also improve production efficiency.
通过上述步骤,本发明的一体热压成型方法易于制造,并可以使得发声器件100易于组装制造,同时也避免了吸音颗粒漏粉到发声器件100的发声内腔10内部的风险,提高发声器件100的可靠性。Through the above steps, the integrated hot-pressing molding method of the present invention is easy to manufacture, and the sound-emitting device 100 can be easily assembled and manufactured, and at the same time, the risk of leakage of sound-absorbing particles into the sound-emitting cavity 10 of the sound-emitting device 100 is avoided, and the sound-emitting device 100 is improved. reliability.
与现有技术相比,本发明的发声器件和扬声器箱将所述透气隔离件与所述磁轭的立体形状匹配且完全覆盖于所述磁轭远离所述振膜的一侧,并采用所述透气隔离件与所述磁轭一体热压成型,从而使得所述透气隔离件完全将所述磁轭覆盖,从而当发声器件应用于扬声器箱时,扬声器箱的后腔填入吸音颗粒,该结构避免了吸音颗粒漏粉到发声器件的发声内腔内部的风险,从而提高了可靠性并易于组装制造。本发明的一体热压成型方法采用如下步骤:步骤S1、在磁轭位于远离振膜的一侧涂胶水;步骤S2、将磁轭放入下模具内并定位,其中,磁轭涂有胶水的相对一侧抵接于下模具;步骤S3、再将透气隔离件的原料放入下模具内;步骤S4、将上模具与下模具压合,以使上模具将原料压紧并抵接于磁轭;步骤S5、将上模具和下模具加热和保压,以使原料与磁轭一体成型;步骤S6、将一体成型的原料与磁轭从上模具和下模具中脱模,并通过激光将磁轭外的原料切除。通过上述步骤,本发明的一体热压成型方法易于制造,并可以使得发声器件易于组装制造,同时也避免了吸音颗粒漏粉到发声器件的发声内腔内部的风险,提高发声器件的可靠性。Compared with the prior art, the sound-generating device and the speaker box of the present invention match the three-dimensional shape of the air-permeable spacer with the magnetic yoke and completely cover the side of the magnetic yoke away from the diaphragm, and use the The ventilating spacer and the magnetic yoke are integrally hot-pressed, so that the ventilating spacer completely covers the magnetic yoke, so that when the sound-emitting device is applied to the speaker box, the back cavity of the speaker box is filled with sound-absorbing particles, which The structure avoids the risk of the sound-absorbing particles leaking into the sound-emitting inner cavity of the sound-emitting device, thereby improving reliability and being easy to assemble and manufacture. The integrated hot pressing forming method of the present invention adopts the following steps: step S1, applying glue on the side of the magnetic yoke that is located away from the vibrating film; step S2, placing the magnetic yoke into the lower mold and positioning, wherein the magnetic yoke is coated with glue The opposite side is in contact with the lower mold; step S3, put the raw material of the air-permeable spacer into the lower mold; step S4, press the upper mold with the lower mold, so that the upper mold compresses the raw material and abuts against the magnetic yoke; step S5, heating and pressure-holding the upper mold and the lower mold, so that the raw material and the magnetic yoke are integrally formed; step S6, demolding the integrally formed raw material and the magnetic yoke from the upper mold and the lower mold, and laser The material outside the yoke is removed. Through the above steps, the integrated hot-pressing molding method of the present invention is easy to manufacture, and can make the sound-emitting device easy to assemble and manufacture, and also avoids the risk of the sound-absorbing particles leaking powder into the sound-emitting inner cavity of the sound-emitting device, and improves the reliability of the sound-emitting device.
以上所述的仅是本发明的实施方式,在此应当指出,对于本领域的普通技术人员来说,在不脱离本发明创造构思的前提下,还可以做出改进,但这些均属于本发明的保护范围。The above are only the embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present invention, but these belong to the present invention. scope of protection.
Claims (10)
- 一种发声器件,其包括振动系统、驱动所述振动系统振动发声的磁路系统以及透气隔离件;所述振动系统包括用于振动发声的振膜,所述磁路系统包括磁轭,所述振膜与所述磁轭分别设置于所述发声器件的相对两侧,所述振膜、所述磁轭以及所述透气隔离件共同围成发声内腔,所述磁轭设有贯穿其上的泄漏孔,所述发声内腔通过所述泄漏孔与外界连接,所述透气隔离件贴合固定于所述磁轭并完全覆盖所述泄漏孔,其特征在于,所述透气隔离件与所述磁轭的立体形状匹配且完全覆盖于所述磁轭远离所述振膜的一侧;所述透气隔离件与所述磁轭一体热压成型。A sound-generating device includes a vibration system, a magnetic circuit system for driving the vibration system to vibrate and sound, and a ventilating isolator; the vibration system includes a vibrating film for vibration and sound, the magnetic circuit system includes a yoke, and the The vibrating membrane and the magnetic yoke are respectively arranged on opposite sides of the sounding device, the vibrating membrane, the magnetic yoke and the air-permeable spacer together form a sounding inner cavity, and the magnetic yoke is provided with a penetrating cavity. The sound-emitting inner cavity is connected to the outside through the leakage hole, and the breathable spacer is fitted and fixed to the yoke and completely covers the leakage hole. It is characterized in that the breathable spacer is connected to the The three-dimensional shape of the magnetic yoke is matched and completely covers the side of the magnetic yoke away from the diaphragm; the air-permeable spacer and the magnetic yoke are integrally formed by hot pressing.
- 根据权利要求1所述的发声器件,其特征在于,所述磁轭包括磁轭本体、由所述磁轭本体的外周缘弯折延伸的延伸部以及由所述延伸部向远离所述磁轭本体的方向弯折延伸的固定部,所述泄漏孔位于所述延伸部,所述固定部与所述振动系统固定;所述透气隔离件完全贴合覆盖所述磁轭本体、所述延伸部及所述固定部。The sound-generating device according to claim 1, wherein the magnetic yoke comprises a magnetic yoke body, an extension portion bent and extended from the outer peripheral edge of the magnetic yoke body, and a direction away from the magnetic yoke from the extension portion A fixed part that is bent and extended in the direction of the body, the leakage hole is located in the extended part, and the fixed part is fixed to the vibration system; the air-permeable isolator completely fits and covers the yoke body and the extended part and the fixing part.
- 根据权利要求2所述的发声器件,其特征在于,所述磁轭本体呈矩形,所述泄漏孔包括两个且分别设置于所述磁轭本体的相对两侧。The sound-generating device according to claim 2, wherein the magnetic yoke body is rectangular, and the leakage holes include two and are respectively disposed on opposite sides of the magnetic yoke body.
- 根据权利要求2所述的发声器件,其特征在于,所述磁轭本体呈带圆角的矩形,所述泄漏孔包括四个且分别位于所述延伸部靠近所述磁轭本体的圆角位置。The sound-generating device according to claim 2, wherein the yoke body is in the shape of a rectangle with rounded corners, and the leakage holes include four and are respectively located at the rounded positions of the extension part close to the yoke body .
- 根据权利要求1所述的发声器件,其特征在于,所述透气隔离件为网布或者金属网。The sound-generating device according to claim 1, wherein the air-permeable spacer is a mesh cloth or a metal mesh.
- 根据权利要求1所述的发声器件,其特征在于,所述发声器件还包括盆架,所述振膜和所述磁轭分别固定于所述盆架的相对两侧,所述盆架、所述振膜、所述磁轭以及所述透气隔离件共同围成所述发声内腔。The sound-generating device according to claim 1, wherein the sound-generating device further comprises a basin frame, the diaphragm and the magnetic yoke are respectively fixed on opposite sides of the basin frame, the basin frame, the The vibrating membrane, the magnetic yoke and the air-permeable spacer together form the sounding inner cavity.
- 根据权利要求6所述的发声器件,其特征在于,所述振膜包括振膜本体和由所述振膜本体向所述盆架的方向弯折延伸形成的振膜侧壁,所述振膜侧壁固定于所述盆架的外侧。The sound-generating device according to claim 6, wherein the vibrating membrane comprises a vibrating membrane body and a vibrating membrane side wall formed by bending and extending the vibrating membrane body in the direction of the basin frame, and the vibrating membrane The side wall is fixed on the outside of the basin frame.
- 根据权利要求2所述的发声器件,其特征在于,所述振动系统还包括位于所述发声内腔并与所述振膜相对且间隔设置的弹性支撑组件,所述延伸部由所述固定部向远离所述弹性支撑组件的方向延伸以使所述延伸部形成与所述弹性支撑组件避让结构,所述弹性支撑组件与所述泄漏孔正对设置。The sound-generating device according to claim 2, wherein the vibration system further comprises an elastic support component located in the sound-generating inner cavity and opposite to the vibrating membrane and arranged at intervals, and the extension part is formed by the fixing part Extending in a direction away from the elastic support component, the extension part forms an avoidance structure with the elastic support component, and the elastic support component is disposed opposite to the leakage hole.
- 一种扬声器箱,其特征在于,该扬声器箱包括如权利要求1至8任意一项所述的发声器件。A loudspeaker box, characterized in that the loudspeaker box comprises the sound-generating device according to any one of claims 1 to 8.
- 一种一体热压成型方法,其包括用于热压成型且与所述磁轭形状匹配的上模具和下模具,其特征在于,该方法应用于如权利要求1至8任意一项所述的发声器件,该方法包括如下步骤:A one-piece thermoforming method, comprising an upper die and a lower die for thermoforming and matching the shape of the magnetic yoke, characterized in that the method is applied to any one of claims 1 to 8 A sound-emitting device, the method includes the following steps:步骤S1、在所述磁轭位于远离所述振膜的一侧涂胶水;Step S1, applying glue on the side of the magnetic yoke that is located away from the diaphragm;步骤S2、将所述磁轭放入所述下模具内并定位,其中,所述磁轭涂有胶水的相对一侧抵接于所述下模具;Step S2, putting the magnetic yoke into the lower mold and positioning, wherein the opposite side of the magnetic yoke coated with glue is abutted against the lower mold;步骤S3、再将所述透气隔离件的原料放入所述下模具内;Step S3, then put the raw material of the breathable spacer into the lower mold;步骤S4、将所述上模具与所述下模具压合,以使所述上模具将所述原料压紧并抵接于所述磁轭;Step S4, pressing the upper mold and the lower mold, so that the upper mold compresses the raw material and abuts the magnetic yoke;步骤S5、将所述上模具和所述下模具加热和保压,以使所述原料与所述磁轭一体成型;Step S5, heating and maintaining the pressure of the upper mold and the lower mold, so that the raw material and the magnetic yoke are integrally formed;步骤S6、将一体成型的所述原料与所述磁轭从所述上模具和所述下模具中脱模,并通过激光将所述磁轭外的所述原料切除。In step S6, the integrally formed raw material and the magnetic yoke are demolded from the upper mold and the lower mold, and the raw material outside the magnetic yoke is cut off by a laser.
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CN206524962U (en) * | 2017-01-22 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
CN208638687U (en) * | 2018-08-10 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | Microphone device |
CN208638684U (en) * | 2018-08-10 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | Microphone device |
CN110366073A (en) * | 2019-06-03 | 2019-10-22 | 瑞声科技(新加坡)有限公司 | Microphone device |
CN110392329A (en) * | 2019-06-03 | 2019-10-29 | 瑞声科技(新加坡)有限公司 | Microphone device |
CN211321500U (en) * | 2020-01-09 | 2020-08-21 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
Also Published As
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CN112261552B (en) | 2021-12-24 |
CN112261552A (en) | 2021-01-22 |
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