WO2021119917A1 - Diaphragm and speaker - Google Patents
Diaphragm and speaker Download PDFInfo
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- WO2021119917A1 WO2021119917A1 PCT/CN2019/125640 CN2019125640W WO2021119917A1 WO 2021119917 A1 WO2021119917 A1 WO 2021119917A1 CN 2019125640 W CN2019125640 W CN 2019125640W WO 2021119917 A1 WO2021119917 A1 WO 2021119917A1
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- thickness
- diaphragm
- dome
- bending portion
- bending
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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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
Definitions
- the utility model belongs to the technical field of electroacoustics, and particularly relates to a diaphragm and a loudspeaker.
- the purpose of the utility model is to provide a diaphragm, which aims to improve the structural strength of the inner side of the bending part of the bending ring corresponding to the corner of the dome on the diaphragm, and improve the product performance.
- a diaphragm which includes a dome located in the center, a folding ring part arranged around the outer side of the dome, and the folding ring part includes a rim connected and fixed to the edge of the dome
- the dome includes two opposite first sides Side, two opposing second side sides, and a corner connecting the adjacent first side side and the second side side, characterized in that, the bent portion includes a side facing from the inner connecting portion
- the inner bending portion bent and extended away from the plane where the dome is located, and the outer bending portion connected between the inner bending portion and the outer connecting portion, the outer bending portion corresponding to the corner portion
- the thickness of the part is smaller than the thickness of the adjacent inner bending part.
- the thickness of the inner bending portion corresponding to the first side is equal to the thickness of the outer bending portion corresponding to the first side.
- the thickness of the inner bending portion corresponding to the second side edge is equal to the thickness of the outer bending portion corresponding to the second side edge.
- bent portions corresponding to the first side edge and the second side edge respectively have an equal-thickness structure with a first thickness
- the inner bent portion corresponding to the corner portion The thickness of is also the first thickness
- bent portions corresponding to the first side edge and the second side edge respectively have an equal-thickness structure with a first thickness
- the outer bent portion corresponding to the corner portion The thickness of is also the first thickness
- the thickness of the outer bending portion corresponding to the corner portion and the thickness of the adjacent inner bending portion transition in a gradual manner.
- folding ring portion and the dome are an integral structure or a split structure.
- the vibration membrane is a rubber membrane, a PEEK (Polyetheretherketone, polyether ether ketone) membrane, or a TPU (Thermoplastic polyurethanes, thermoplastic polyurethane elastomer rubber) membrane.
- PEEK Polyetheretherketone, polyether ether ketone
- TPU thermoplastic polyurethanes, thermoplastic polyurethane elastomer rubber
- the dome is a rectangle with rounded corners, and the inner bending part and the outer bending part form an arc transition.
- a speaker including a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system, the vibration system comprising a diaphragm fixed on the top of the basin frame, the diaphragm being any one of the above In the diaphragm, the outer connecting portion is fixed to the basin frame, and the inner bent portion extends from the inner connecting portion in a direction away from the magnetic circuit system.
- the beneficial effect of the utility model is that: the utility model designs the thickness of the bending part of the diaphragm corresponding to the corner of the dome to be thin on the outside and thick inside, which can significantly improve the rigidity of the position and improve the contact with the corner of the dome.
- the inner side of the diaphragm Corresponding to the structural strength of the inner side of the bending part of the bending ring, it can improve the problem that the inner side of the diaphragm is easy to be folded when the diaphragm is vibrated up and down, and improve the pure sound of the product; and because the thickness of the diaphragm is only partially changed, the overall weight of the diaphragm will not be excessively changed to ensure Resonance frequency, sound pressure level and other performance changes are small; not only that, it can also increase the lower amplitude of the product, suppress the upper amplitude, and simultaneously optimize the problem of asymmetrical deviation of the highest point of the upper and lower amplitudes, improve product swing, and reduce distortion.
- Figure 1 is a schematic diagram of the overall structure of a diaphragm provided by an embodiment of the present invention
- Figure 2 is a schematic top view of the structure of the loudspeaker provided by the embodiment of the present invention.
- Fig. 3 is a schematic diagram of an exploded structure of a speaker provided by an embodiment of the present invention.
- Fig. 4 is a schematic cross-sectional view taken along the A-A direction of Fig. 2;
- Fig. 5 is a schematic cross-sectional view taken along the B-B direction of Fig. 2;
- Fig. 6 is a schematic cross-sectional view taken along the C-C direction of Fig. 2;
- FIG. 7 is a schematic diagram of an enlarged structure of part D in FIG. 6.
- the diaphragm 21 includes a dome 212 located in the center and a folding ring portion arranged around the outer side of the dome 212 211.
- the folding ring portion 211 includes an inner connecting portion 2111 fixedly connected to the edge of the dome 212, an outer connecting portion 2113 spaced apart from the inner connecting portion 2111, and a bending portion connected between the inner connecting portion 2111 and the outer connecting portion 2113 2112.
- the dome 212 includes two opposite first sides 2121, two opposite second sides 2122, and a corner 2123 connecting the adjacent first side 2121 and the second side 2122.
- the bending portion 2112 includes an inner bending portion 21122 bent and extending from the inner connecting portion 2111 toward a plane away from the dome 212 and connected between the inner bending portion 21122 and the outer connecting portion 2113
- the thickness of the outer bending portion 21121 corresponding to the corner portion 2123 is smaller than the thickness of the adjacent inner bending portion 21122.
- the thickness of the bent portion 2112 corresponding to the corner 2123 is designed to be thin on the outside and thick on the inside, which can significantly improve the rigidity of the position, improve the structural strength of the inner bent portion 21122, and improve the inner side of the diaphragm 21 when it vibrates up and down. To improve the product pure tone.
- the overall weight of the diaphragm 21 will not be excessively changed, ensuring that the resonance frequency, sound pressure level and other performance changes are small; not only that, it can also increase the lower amplitude of the product and suppress the upper amplitude , Synchronously optimize the problem of asymmetrical deviation of the highest point of the upper and lower amplitude, improve product swing and reduce distortion.
- the thickness of the inner bending portion 21122 corresponding to the first side 2121 is equal to the thickness of the outer bending portion 21121 corresponding to the first side 2121, and the inner bending portion 21121 corresponding to the second side 2122 has the same thickness.
- the thickness of the bent portion 21122 is equal to the thickness of the outer bent portion 21121 corresponding to the second side 2122.
- only the thickness of the bending portion 2112 corresponding to the corner portion 2123 is changed, and the thickness of the bending portion 2112 corresponding to the first side 2121 and the second side 2122 remains unchanged, so the diaphragm will not be changed excessively. 21
- the overall weight, resonance frequency, sound pressure level and other performance changes are small.
- the bent portions 2112 corresponding to the first side 2121 and the second side 2122 respectively are of equal-thickness structure with the first thickness, corresponding to the corner 2123
- the thickness of the inner bending portion 21122 is also the first thickness, that is, the thickness of the outer bending portion 21121 corresponding to the corner portion 2123 is reduced relative to the first thickness.
- the bent portions 2112 corresponding to the first side 2121 and the second side 2122 respectively have an equal-thickness structure with the first thickness, and the outer bent portion 21121 corresponding to the corner 2123
- the thickness of is also the first thickness, that is, the thickness of the inner bent portion 21122 corresponding to the corner portion 2123 is thicker than the first thickness.
- the thickness of the outer bending portion 21121 corresponding to the corner portion 2123 and the thickness of the adjacent inner bending portion 21122 transition in a gradual manner, and the specific thickness variation range and the starting point position are not limited, and can be Adjust according to actual needs.
- the folding ring portion 211 and the dome 212 of this embodiment are separate structures. In other embodiments, the folding ring portion 211 and the dome 212 may also be an integral structure.
- the diaphragm 21 of this embodiment is made of a polymer material, specifically, it may be a rubber film, a PEEK film or a TPU film.
- the dome 212 of this embodiment is a rectangle with rounded corners, and the inner bending portion 21122 and the outer bending portion 21121 transition in an arc shape. Of course, the dome 212 may also have other shapes, and the shape of the dome 212 is not limited.
- the embodiment of the present invention also provides a speaker.
- the speaker includes a basin frame 10, a vibration system 20 fixed to the basin frame 10, and a magnetic circuit system 30.
- the vibration system 20 includes a frame fixed to the basin frame.
- the diaphragm 21 at the top of 10 is the diaphragm 21 in the above technical solution.
- the outer connecting portion 2113 is fixed to the frame 10, and the inner bent portion 21122 extends from the inner connecting portion 2111 in a direction away from the magnetic circuit system 30.
- the vibration system 20 also includes a voice coil 22 connected to one side of the diaphragm 21 and driving the diaphragm 21 to vibrate, a circuit board 23 connected to the end of the voice coil 22 away from the diaphragm 21, and two lower sound diaphragms corresponding to the diaphragm 21 twenty four.
- the basin frame 10 and the diaphragm 21 are bonded and fixed by a glue layer 40.
- the magnetic circuit system 30 includes a main magnet 31, auxiliary magnets 32 located on both sides of the main magnet 31, and pole cores 33 attached to the main magnet 31.
- the auxiliary magnets 32 are arranged at intervals on the main magnet. 31, and form a magnetic gap with the main magnet 31, the voice coil 22 is fixedly arranged in the magnetic gap,
- the magnetic circuit system 30 also includes a yoke 35 for fixing the main magnet 31 and the auxiliary magnet 32, and the magnetic The magnetic conductive plate 36 opposite to the yoke 35 is embedded and fixed on the basin frame 10.
- An adhesive layer 34 is provided between the main magnet 31 and the pole core 33, between the main magnet 31 and the yoke 35, between the auxiliary magnet 32 and the yoke 35, and between the auxiliary magnet 32 and the magnetic conductive plate 36. .
- the pole core 33 attached to the surface of the main magnetic steel 31 can play a role in guiding magnetism, converge the magnetic field, and improve the magnetic induction performance of the product.
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
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- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Provided in the present application are a diaphragm and a speaker. The diaphragm comprises a dome located at a central position and a folding ring portion arranged around the outer side of the dome; the folding ring portion comprises an inner connecting portion connectedly fixed to the edge of the dome, an outer connecting portion arranged at a distance from the inner connecting portion, and a bending portion connected between the inner connecting portion and the outer connecting portion; the dome comprises two first side edges that are oppositely disposed, two second side edges that are oppositely disposed, and corner portions connecting adjacent first side edges and second side edges; and the bending portion comprises an inner bending portion that bendingly extends from the inner connecting portion away from the plane on which the dome is located, and an outer bending portion connected between the inner bending portion and the outer connecting portion. The thickness of the outer bending portion corresponding to the corner portions is smaller than that of the adjacent inner bending portion. The present application can improve the structural strength of an inner side of a bending portion of a folding ring corresponding to a corner portion of a dome, resolve the problem in which an inner side is easily broken when a diaphragm vibrates up and down, and improve acoustic performance.
Description
本实用新型属于电声技术领域，尤其涉及一种振膜及扬声器。The utility model belongs to the technical field of electroacoustics, and particularly relates to a diaphragm and a loudspeaker.
随着科技的快速发展，音频设备也不断快速发展，人们对音频设备的功能性要求越来越高，对于扬声器，越来越多人对其音频性能提出了较高的要求。相关技术中，振膜上与球顶角部对应的折环弯折部内侧的结构强度不足，所需要的刚度较大，振膜上下振动时内侧容易出现打折，使其性能出现不良。With the rapid development of science and technology, audio equipment continues to develop rapidly, and people have higher and higher requirements for the functionality of audio equipment. For speakers, more and more people have put forward higher requirements for their audio performance. In the related art, the structural strength of the inner side of the bending part of the bend ring corresponding to the corner of the dome on the diaphragm is insufficient, and the required rigidity is relatively large. When the diaphragm vibrates up and down, the inner side is prone to buckling, resulting in poor performance.
本实用新型的目的在于提供一种振膜，旨在提高振膜上与球顶角部对应的折环弯折部内侧的结构强度，提升产品性能。The purpose of the utility model is to provide a diaphragm, which aims to improve the structural strength of the inner side of the bending part of the bending ring corresponding to the corner of the dome on the diaphragm, and improve the product performance.
本实用新型的技术方案如下：一种振膜，其包括位于中央位置的球顶、环绕设置在所述球顶外侧的折环部，所述折环部包括与所述球顶边缘连接固定的内连接部、与所述内连接部间隔设置的外连接部以及连接在所述内连接部与所述外连接部之间的弯折部，所述球顶包括相对设置的两个第一侧边、相对设置的两个第二侧边以及连接相邻的所述第一侧边和所述第二侧边的角部，其特征在于，所述弯折部包括自所述内连接部朝远离所述球顶所在平面弯折延伸的内弯折部以及连接在所述内弯折部与所述外连接部之间的外弯折部，与所述角部对应的所述外弯折部的厚度小于相邻的所述内弯折部的厚度。The technical solution of the present invention is as follows: a diaphragm, which includes a dome located in the center, a folding ring part arranged around the outer side of the dome, and the folding ring part includes a rim connected and fixed to the edge of the dome An inner connecting portion, an outer connecting portion spaced apart from the inner connecting portion, and a bent portion connected between the inner connecting portion and the outer connecting portion, the dome includes two opposite first sides Side, two opposing second side sides, and a corner connecting the adjacent first side side and the second side side, characterized in that, the bent portion includes a side facing from the inner connecting portion The inner bending portion bent and extended away from the plane where the dome is located, and the outer bending portion connected between the inner bending portion and the outer connecting portion, the outer bending portion corresponding to the corner portion The thickness of the part is smaller than the thickness of the adjacent inner bending part.
进一步地，与所述第一侧边对应的所述内弯折部的厚度与对应所述第一侧边的所述外弯折部的厚度相等。Further, the thickness of the inner bending portion corresponding to the first side is equal to the thickness of the outer bending portion corresponding to the first side.
进一步地，与所述第二侧边对应的所述内弯折部的厚度与对应所述第二侧边的所述外弯折部的厚度相等。Further, the thickness of the inner bending portion corresponding to the second side edge is equal to the thickness of the outer bending portion corresponding to the second side edge.
进一步地，与所述第一侧边及所述第二侧边分别对应的所述弯折部均为厚度为第一厚度的等厚度结构，与所述角部对应的所述内弯折部的厚度也为所述第一厚度。Further, the bent portions corresponding to the first side edge and the second side edge respectively have an equal-thickness structure with a first thickness, and the inner bent portion corresponding to the corner portion The thickness of is also the first thickness.
进一步地，与所述第一侧边及所述第二侧边分别对应的所述弯折部均为厚度为第一厚度的等厚度结构，与所述角部对应的所述外弯折部的厚度也为所述第一厚度。Further, the bent portions corresponding to the first side edge and the second side edge respectively have an equal-thickness structure with a first thickness, and the outer bent portion corresponding to the corner portion The thickness of is also the first thickness.
进一步地，与所述角部对应的所述外弯折部的厚度与相邻的所述内弯折部的厚度以渐变的方式过渡。Further, the thickness of the outer bending portion corresponding to the corner portion and the thickness of the adjacent inner bending portion transition in a gradual manner.
进一步地，所述折环部和所述球顶为一体结构或分体结构。Further, the folding ring portion and the dome are an integral structure or a split structure.
进一步地，所述振膜为橡胶膜、PEEK（Polyetheretherketone，聚醚醚酮）膜或TPU（Thermoplastic polyurethanes，热塑性聚氨酯弹性体橡胶）膜。Further, the vibration membrane is a rubber membrane, a PEEK (Polyetheretherketone, polyether ether ketone) membrane, or a TPU (Thermoplastic polyurethanes, thermoplastic polyurethane elastomer rubber) membrane.
进一步地，所述球顶呈圆角矩形，所述内弯折部与所述外弯折部呈弧形过渡。Further, the dome is a rectangle with rounded corners, and the inner bending part and the outer bending part form an arc transition.
进一步地，提供一种扬声器，包括盆架、固定于所述盆架的振动***和磁路***，所述振动***包括固定于所述盆架顶部的振膜，所述振膜为如上任意一种所述的振膜，所述外连接部与所述盆架固定，所述内弯折部自所述内连接部朝远离所述磁路***的方向延伸。Further, there is provided a speaker, including a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system, the vibration system comprising a diaphragm fixed on the top of the basin frame, the diaphragm being any one of the above In the diaphragm, the outer connecting portion is fixed to the basin frame, and the inner bent portion extends from the inner connecting portion in a direction away from the magnetic circuit system.
本实用新型的有益效果在于：本实用新型将振膜上与球顶角部对应的折环弯折部的厚度设计为外薄内厚，能够显著提高该位置的刚度，提升与球顶角部对应的折环弯折部内侧的结构强度，改善振膜上下振动时内侧容易打折的问题，改善产品纯音；并且由于只是局部改变振膜折环的厚度，不会过分改变振膜整体重量，保证共振频率、声压级等性能变化较小；不仅如此，还能抬高产品下振幅，抑制上振幅，同步优化上下振幅最高点左右偏移不对称的问题，改善产品摇摆，降低失真。The beneficial effect of the utility model is that: the utility model designs the thickness of the bending part of the diaphragm corresponding to the corner of the dome to be thin on the outside and thick inside, which can significantly improve the rigidity of the position and improve the contact with the corner of the dome. Corresponding to the structural strength of the inner side of the bending part of the bending ring, it can improve the problem that the inner side of the diaphragm is easy to be folded when the diaphragm is vibrated up and down, and improve the pure sound of the product; and because the thickness of the diaphragm is only partially changed, the overall weight of the diaphragm will not be excessively changed to ensure Resonance frequency, sound pressure level and other performance changes are small; not only that, it can also increase the lower amplitude of the product, suppress the upper amplitude, and simultaneously optimize the problem of asymmetrical deviation of the highest point of the upper and lower amplitudes, improve product swing, and reduce distortion.
图1是本实用新型实施例提供的振膜的整体结构示意图；Figure 1 is a schematic diagram of the overall structure of a diaphragm provided by an embodiment of the present invention;
图2是本实用新型实施例提供的扬声器的俯视结构示意图Figure 2 is a schematic top view of the structure of the loudspeaker provided by the embodiment of the present invention
图3是本实用新型实施例提供的扬声器的分解结构示意图；Fig. 3 is a schematic diagram of an exploded structure of a speaker provided by an embodiment of the present invention;
图4是图2的A-A方向剖切示意图；Fig. 4 is a schematic cross-sectional view taken along the A-A direction of Fig. 2;
图5是图2的B-B方向剖切示意图；Fig. 5 is a schematic cross-sectional view taken along the B-B direction of Fig. 2;
图6是图2的C-C方向剖切示意图；Fig. 6 is a schematic cross-sectional view taken along the C-C direction of Fig. 2;
图7是图6中D部分的放大结构示意图。FIG. 7 is a schematic diagram of an enlarged structure of part D in FIG. 6.
下面结合附图和实施方式对本实用新型作进一步说明。The present utility model will be further explained below in conjunction with the drawings and embodiments.
如图1所示，是本实用新型实施例提供的一种振膜21，请一同参阅图7，该振膜21包括位于中央位置的球顶212以及环绕设置在球顶212外侧的折环部211，折环部211包括与球顶212边缘连接固定的内连接部2111、与内连接部2111间隔设置的外连接部2113以及连接在内连接部2111与外连接部2113之间的弯折部2112，球顶212包括相对设置的两个第一侧边2121、相对设置的两个第二侧边2122以及连接相邻的第一侧边2121和第二侧边2122的角部2123。As shown in FIG. 1, it is a diaphragm 21 provided by an embodiment of the present invention. Please refer to FIG. 7 together. The diaphragm 21 includes a dome 212 located in the center and a folding ring portion arranged around the outer side of the dome 212 211. The folding ring portion 211 includes an inner connecting portion 2111 fixedly connected to the edge of the dome 212, an outer connecting portion 2113 spaced apart from the inner connecting portion 2111, and a bending portion connected between the inner connecting portion 2111 and the outer connecting portion 2113 2112. The dome 212 includes two opposite first sides 2121, two opposite second sides 2122, and a corner 2123 connecting the adjacent first side 2121 and the second side 2122.
请进一步参阅图6和图7，弯折部2112包括自内连接部2111朝远离球顶212所在平面弯折延伸的内弯折部21122以及连接在内弯折部21122与外连接部2113之间的外弯折部21121，与角部2123对应的外弯折部21121的厚度小于相邻的内弯折部21122的厚度。也就是说，与角部2123对应的弯折部2112厚度设计为外薄内厚，能够显著提高该位置的刚度，提升内弯折部21122的结构强度，改善振膜21上下振动时内侧容易打折的问题，改善产品纯音。并且由于只是局部改变弯折部2112的厚度，不会过分改变振膜21整体的重量，保证共振频率、声压级等性能变化较小；不仅如此，还能抬高产品下振幅，抑制上振幅，同步优化上下振幅最高点左右偏移不对称的问题，改善产品摇摆，降低失真。6 and 7, the bending portion 2112 includes an inner bending portion 21122 bent and extending from the inner connecting portion 2111 toward a plane away from the dome 212 and connected between the inner bending portion 21122 and the outer connecting portion 2113 The thickness of the outer bending portion 21121 corresponding to the corner portion 2123 is smaller than the thickness of the adjacent inner bending portion 21122. In other words, the thickness of the bent portion 2112 corresponding to the corner 2123 is designed to be thin on the outside and thick on the inside, which can significantly improve the rigidity of the position, improve the structural strength of the inner bent portion 21122, and improve the inner side of the diaphragm 21 when it vibrates up and down. To improve the product pure tone. And because the thickness of the bending part 2112 is only partially changed, the overall weight of the diaphragm 21 will not be excessively changed, ensuring that the resonance frequency, sound pressure level and other performance changes are small; not only that, it can also increase the lower amplitude of the product and suppress the upper amplitude , Synchronously optimize the problem of asymmetrical deviation of the highest point of the upper and lower amplitude, improve product swing and reduce distortion.
请进一步参阅图4和图5，与第一侧边2121对应的内弯折部21122的厚度与对应第一侧边2121的外弯折部21121的厚度相等，与第二侧边2122对应的内弯折部21122的厚度与对应第二侧边2122的外弯折部21121的厚度相等。本实施例只改变了与角部2123对应的弯折部2112的厚度，而与第一侧边2121以及第二侧边2122对应的弯折部2112的厚度不变，因此不会过分改变振膜21整体的重量，共振频率、声压级等性能变化较小。4 and 5, the thickness of the inner bending portion 21122 corresponding to the first side 2121 is equal to the thickness of the outer bending portion 21121 corresponding to the first side 2121, and the inner bending portion 21121 corresponding to the second side 2122 has the same thickness. The thickness of the bent portion 21122 is equal to the thickness of the outer bent portion 21121 corresponding to the second side 2122. In this embodiment, only the thickness of the bending portion 2112 corresponding to the corner portion 2123 is changed, and the thickness of the bending portion 2112 corresponding to the first side 2121 and the second side 2122 remains unchanged, so the diaphragm will not be changed excessively. 21 The overall weight, resonance frequency, sound pressure level and other performance changes are small.
于本实用新型实施例的一种实施方式中，与第一侧边2121及第二侧边2122分别对应的弯折部2112均为厚度为第一厚度的等厚度结构，与角部2123对应的内弯折部21122的厚度也为第一厚度，也就是说，将与角部2123对应的外弯折部21121的厚度相对第一厚度减薄。在另一种实施方式中，与第一侧边2121及第二侧边2122分别对应的弯折部2112均为厚度为第一厚度的等厚度结构，与角部2123对应的外弯折部21121的厚度也为第一厚度，也就是说，将与角部2123对应的内弯折部21122的厚度相对第一厚度加厚。优选的，与角部2123对应的外弯折部21121的厚度与相邻的内弯折部21122的厚度以渐变的方式过渡，而具体厚度尺寸的变化范围以及起始点位置等不做限定，可根据实际需求调整。In an implementation of the embodiment of the present utility model, the bent portions 2112 corresponding to the first side 2121 and the second side 2122 respectively are of equal-thickness structure with the first thickness, corresponding to the corner 2123 The thickness of the inner bending portion 21122 is also the first thickness, that is, the thickness of the outer bending portion 21121 corresponding to the corner portion 2123 is reduced relative to the first thickness. In another embodiment, the bent portions 2112 corresponding to the first side 2121 and the second side 2122 respectively have an equal-thickness structure with the first thickness, and the outer bent portion 21121 corresponding to the corner 2123 The thickness of is also the first thickness, that is, the thickness of the inner bent portion 21122 corresponding to the corner portion 2123 is thicker than the first thickness. Preferably, the thickness of the outer bending portion 21121 corresponding to the corner portion 2123 and the thickness of the adjacent inner bending portion 21122 transition in a gradual manner, and the specific thickness variation range and the starting point position are not limited, and can be Adjust according to actual needs.
本实施例的折环部211和球顶212为分体结构，在其他实施方式中，折环部211和球顶212也可以是一体结构。本实施例的振膜21为高分子材料，具体的，可以为橡胶膜、PEEK膜或TPU膜。另外，本实施例的球顶212呈圆角矩形，内弯折部21122与外弯折部21121呈弧形过渡。当然，球顶212也可以为其他形状，对球顶212的形状不做限定。The folding ring portion 211 and the dome 212 of this embodiment are separate structures. In other embodiments, the folding ring portion 211 and the dome 212 may also be an integral structure. The diaphragm 21 of this embodiment is made of a polymer material, specifically, it may be a rubber film, a PEEK film or a TPU film. In addition, the dome 212 of this embodiment is a rectangle with rounded corners, and the inner bending portion 21122 and the outer bending portion 21121 transition in an arc shape. Of course, the dome 212 may also have other shapes, and the shape of the dome 212 is not limited.
本实用新型实施例还提供一种扬声器，如图2和图3所示，该扬声器包括盆架10、固定于盆架10的振动***20和磁路***30，振动***20包括固定于盆架10顶部的振膜21，振膜21为上述技术方案中的振膜21，外连接部2113与盆架10固定，内弯折部21122自内连接部2111朝远离磁路***30的方向延伸。振动***20还包括连接于振膜21一侧并驱动振膜21振动的音圈22、连接在音圈22远离振膜21一端的电路板23以及与振膜21相对应的两个下音膜24。盆架10与振膜21之间通过胶合层40粘接固定。The embodiment of the present invention also provides a speaker. As shown in Figures 2 and 3, the speaker includes a basin frame 10, a vibration system 20 fixed to the basin frame 10, and a magnetic circuit system 30. The vibration system 20 includes a frame fixed to the basin frame. The diaphragm 21 at the top of 10 is the diaphragm 21 in the above technical solution. The outer connecting portion 2113 is fixed to the frame 10, and the inner bent portion 21122 extends from the inner connecting portion 2111 in a direction away from the magnetic circuit system 30. The vibration system 20 also includes a voice coil 22 connected to one side of the diaphragm 21 and driving the diaphragm 21 to vibrate, a circuit board 23 connected to the end of the voice coil 22 away from the diaphragm 21, and two lower sound diaphragms corresponding to the diaphragm 21 twenty four. The basin frame 10 and the diaphragm 21 are bonded and fixed by a glue layer 40.
另外，磁路***30则包括主磁钢31、位于主磁钢31的两侧的副磁钢32以及贴设在主磁钢31上的极芯33，副磁钢32间隔设置在主磁钢31两侧，并与主磁钢31形成磁间隙，音圈22固定设置在磁间隙中，磁路***30还包括用于固设主磁钢31和副磁钢32的磁轭35以及与磁轭35相对的导磁板36，导磁板36嵌设固定于盆架10上。主磁钢31与极芯33之间、主磁钢31与磁轭35之间、副磁钢32与磁轭35之间以及副磁钢32与导磁板36之间设置有粘接层34。贴附在主磁钢31表面的极芯33能够起到导磁作用，汇聚磁场，提高产品的磁感应性能。In addition, the magnetic circuit system 30 includes a main magnet 31, auxiliary magnets 32 located on both sides of the main magnet 31, and pole cores 33 attached to the main magnet 31. The auxiliary magnets 32 are arranged at intervals on the main magnet. 31, and form a magnetic gap with the main magnet 31, the voice coil 22 is fixedly arranged in the magnetic gap, the magnetic circuit system 30 also includes a yoke 35 for fixing the main magnet 31 and the auxiliary magnet 32, and the magnetic The magnetic conductive plate 36 opposite to the yoke 35 is embedded and fixed on the basin frame 10. An adhesive layer 34 is provided between the main magnet 31 and the pole core 33, between the main magnet 31 and the yoke 35, between the auxiliary magnet 32 and the yoke 35, and between the auxiliary magnet 32 and the magnetic conductive plate 36. . The pole core 33 attached to the surface of the main magnetic steel 31 can play a role in guiding magnetism, converge the magnetic field, and improve the magnetic induction performance of the product.
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。The above are only the embodiments of the present utility model. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present utility model, but these all belong to The scope of protection of the utility model.
Claims (10)
- 一种振膜，包括位于中央位置的球顶以及环绕设置在所述球顶外侧的折环部，所述折环部包括与所述球顶边缘连接固定的内连接部、与所述内连接部间隔设置的外连接部以及连接在所述内连接部与所述外连接部之间的弯折部，所述球顶包括相对设置的两个第一侧边、相对设置的两个第二侧边以及连接相邻的所述第一侧边和所述第二侧边的角部，其特征在于，所述弯折部包括自所述内连接部朝远离所述球顶所在平面弯折延伸的内弯折部以及连接在所述内弯折部与所述外连接部之间的外弯折部，与所述角部对应的所述外弯折部的厚度小于相邻的所述内弯折部的厚度。A vibrating membrane, comprising a spherical top at a central position and a folding ring part arranged around the outer side of the spherical top. The folding ring part comprises an inner connecting part fixedly connected with the edge of the spherical top, and is connected with the inner connecting part. The outer connecting portion is arranged at intervals and the bending portion connected between the inner connecting portion and the outer connecting portion. The dome includes two first sides arranged oppositely and two second sides arranged oppositely. The side and the corner connecting the adjacent first side and the second side, wherein the bending portion includes bending from the inner connecting portion toward a plane away from the dome The extended inner bending portion and the outer bending portion connected between the inner bending portion and the outer connecting portion, the thickness of the outer bending portion corresponding to the corner portion is smaller than that of the adjacent The thickness of the inner bend.
- 根据权利要求1所述的振膜，其特征在于，与所述第一侧边对应的所述内弯折部的厚度与对应所述第一侧边的所述外弯折部的厚度相等。The diaphragm according to claim 1, wherein the thickness of the inner bent portion corresponding to the first side edge is equal to the thickness of the outer bent portion corresponding to the first side edge.
- 根据权利要求1所述的振膜，其特征在于，与所述第二侧边对应的所述内弯折部的厚度与对应所述第二侧边的所述外弯折部的厚度相等。 The diaphragm according to claim 1, wherein the thickness of the inner bent portion corresponding to the second side edge is equal to the thickness of the outer bent portion corresponding to the second side edge.
- 根据权利要求1所述的振膜，其特征在于，与所述第一侧边及所述第二侧边分别对应的所述弯折部均为厚度为第一厚度的等厚度结构，与所述角部对应的所述内弯折部的厚度也为所述第一厚度。The diaphragm according to claim 1, wherein the bent portions corresponding to the first side edge and the second side edge respectively have an equal-thickness structure with a first thickness, which is consistent with the The thickness of the inner bent portion corresponding to the corner portion is also the first thickness.
- 根据权利要求1所述的振膜，其特征在于，与所述第一侧边及所述第二侧边分别对应的所述弯折部均为厚度为第一厚度的等厚度结构，与所述角部对应的所述外弯折部的厚度也为所述第一厚度。The diaphragm according to claim 1, wherein the bent portions corresponding to the first side edge and the second side edge respectively have an equal-thickness structure with a first thickness, which is consistent with the The thickness of the outer bending portion corresponding to the corner portion is also the first thickness.
- 根据权利要求1所述的振膜，其特征在于，与所述角部对应的所述外弯折部的厚度与相邻的所述内弯折部的厚度以渐变的方式过渡。The diaphragm according to claim 1, wherein the thickness of the outer bending portion corresponding to the corner portion and the thickness of the adjacent inner bending portion transition in a gradual manner.
- 根据权利要求1所述的振膜，其特征在于，所述折环部和所述球顶为一体结构或分体结构。The diaphragm according to claim 1, wherein the folding ring portion and the dome are an integral structure or a split structure.
- 根据权利要求1所述的振膜，其特征在于，所述振膜为橡胶膜、PEEK膜或TPU膜。The diaphragm according to claim 1, wherein the diaphragm is a rubber film, a PEEK film or a TPU film.
- 根据权利要求1所述的振膜，其特征在于，所述球顶呈圆角矩形，所述内弯折部与所述外弯折部呈弧形过渡。The diaphragm according to claim 1, wherein the dome is a rectangle with rounded corners, and the inner bending part and the outer bending part form an arc transition.
- 一种扬声器，包括盆架、固定于所述盆架的振动***和磁路***，所述振动***包括固定于所述盆架顶部的振膜，其特征在于，所述振膜为如权利要求1-9中任意一项所述的振膜，所述外连接部与所述盆架固定，所述内弯折部自所述内连接部朝远离所述磁路***的方向延伸。A loudspeaker comprising a basin frame, a vibration system fixed on the basin frame, and a magnetic circuit system, the vibration system comprising a diaphragm fixed on the top of the basin frame, characterized in that the diaphragm is as claimed In the diaphragm according to any one of 1-9, the outer connecting portion is fixed to the basin frame, and the inner bent portion extends from the inner connecting portion in a direction away from the magnetic circuit system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/125640 WO2021119917A1 (en) | 2019-12-16 | 2019-12-16 | Diaphragm and speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/125640 WO2021119917A1 (en) | 2019-12-16 | 2019-12-16 | Diaphragm and speaker |
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| Publication Number | Publication Date |
|---|---|
| WO2021119917A1 true WO2021119917A1 (en) | 2021-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2019/125640 WO2021119917A1 (en) | 2019-12-16 | 2019-12-16 | Diaphragm and speaker |
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| WO (1) | WO2021119917A1 (en) |
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|---|---|---|---|---|
| US6176345B1 (en) * | 1997-07-18 | 2001-01-23 | Mackie Designs Inc. | Pistonic motion, large excursion passive radiator |
| CN203301721U (en) * | 2013-05-18 | 2013-11-20 | 歌尔声学股份有限公司 | Loudspeaker diaphragm |
| CN208638572U (en) * | 2018-08-02 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | A kind of vibrating diaphragm and the loudspeaker with the vibrating diaphragm |
| CN208638573U (en) * | 2018-08-02 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | A kind of vibrating diaphragm and the loudspeaker with the vibrating diaphragm |
| CN209390353U (en) * | 2018-12-30 | 2019-09-13 | 瑞声科技(新加坡)有限公司 | Sounding device |
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2019
- 2019-12-16 WO PCT/CN2019/125640 patent/WO2021119917A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6176345B1 (en) * | 1997-07-18 | 2001-01-23 | Mackie Designs Inc. | Pistonic motion, large excursion passive radiator |
| CN203301721U (en) * | 2013-05-18 | 2013-11-20 | 歌尔声学股份有限公司 | Loudspeaker diaphragm |
| CN208638572U (en) * | 2018-08-02 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | A kind of vibrating diaphragm and the loudspeaker with the vibrating diaphragm |
| CN208638573U (en) * | 2018-08-02 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | A kind of vibrating diaphragm and the loudspeaker with the vibrating diaphragm |
| CN209390353U (en) * | 2018-12-30 | 2019-09-13 | 瑞声科技(新加坡)有限公司 | Sounding device |
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