CN110996206B - Earphone membrane with gradually-changed rigidity and manufacturing method thereof - Google Patents
Earphone membrane with gradually-changed rigidity and manufacturing method thereof Download PDFInfo
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- CN110996206B CN110996206B CN201911223180.9A CN201911223180A CN110996206B CN 110996206 B CN110996206 B CN 110996206B CN 201911223180 A CN201911223180 A CN 201911223180A CN 110996206 B CN110996206 B CN 110996206B
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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
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1058—Manufacture or assembly
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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
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
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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
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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
- H04R7/04—Plane diaphragms
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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
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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
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
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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
- H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
- H04R2231/001—Moulding aspects of diaphragm or surround
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Multimedia (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The membrane body of the earphone membrane with gradually changed rigidity is made of a high polymer compound material serving as a base material, the earphone membrane is circular, the earphone membrane comprises an outer ring portion, a gradually changed portion and a central portion which are sequentially sleeved in an annular mode, the rigidity of the base material of the membrane body is used as reference rigidity, the rigidity of the gradually changed portion is gradually transited from the reference rigidity to the lowest rigidity and then transited to the reference rigidity, and the rigidity of the outer ring portion and the rigidity of the central portion are consistent with the rigidity of the base material. The manufacturing method of the earphone film comprises the following steps: the earphone membrane is fixed by the annular fixing ring, and a medium is adopted to move towards the earphone membrane under the driving of the driving part, so that the middle annular part of the earphone membrane generates excessive deformation. The invention improves the method for processing the earphone membrane of the earphone membrane to obtain the membrane body with gradually changed rigidity, so that the unit of the earphone has wider frequency response range, simultaneously has better instant dynamic and clear pronunciation, is favorable for improving the tone quality, and has the advantages of saving the production cost and obtaining a high-quality pronunciation unit.
Description
The technical field is as follows:
the invention belongs to a diaphragm manufacturing technology in the field of earphone manufacturing, and particularly relates to an earphone diaphragm with gradually-changed rigidity and a manufacturing method thereof.
Background art:
the sound generation unit used in the existing earphone is a movable coil unit, most of vibration film accessories in the movable coil unit are made of single-material materials, the vibration film made of single-material materials only has one rigidity, the frequency response range of each rigidity is fixed, broadband sound generation cannot be realized, in order to obtain more frequency response ranges, a composite vibration film containing multiple materials is generated or concave-convex lines are arranged on the film body, the composite vibration film is formed by covering a second material on the local position of a basic vibration film such as the middle or the outer ring part, so that the purpose of changing the frequency response range of the film body is achieved, but besides higher manufacturing cost of the composite vibration film, the vibration film contains multiple layers of film bodies, the weight of the vibration film body is higher, higher response speed is difficult to obtain, and unstable turbulence is generated by the vibration air flow of the film body due to the arrangement of the concave-convex lines, the sound quality is influenced, after the coil on the membrane body is pushed by magnetic force, the generated reset is also completed by depending on the rigidity of the material, the material with better rigidity has higher rebound speed and better sound definition, in order to obtain better rigidity, the thickness of the membrane body generally needs to be increased, the weight of the membrane body is the other factor for determining sound, in order to ensure that the vibrating diaphragm is more easily pushed by the coil, the mass of the membrane body is lighter and better, the rigidity and the thickness of the membrane body need to be coordinated and adjusted, but a high-end unit is manufactured by adopting a composite material, the debugging process is very complex, and the manufacturing cost is higher.
The invention content is as follows:
in view of the drawbacks of the prior art, it is an object of the present invention to provide an earphone diaphragm with a gradually changing stiffness by means of a single substrate, which overcomes the above-mentioned drawbacks.
The technical scheme adopted by the invention for solving the technical problems is as follows: the earphone membrane with gradually-changed rigidity is characterized in that a membrane body of the earphone membrane is made of a high polymer compound material serving as a base material, the earphone membrane is circular, the earphone membrane comprises an outer ring portion, a gradually-changed portion and a central portion which are sequentially sleeved in an annular mode, the rigidity of the membrane body base material is used as reference rigidity, the rigidity of the gradually-changed portion is gradually transited from the reference rigidity to the lowest rigidity and then to the reference rigidity, and the rigidity of the outer ring portion and the rigidity of the central portion are consistent with the rigidity of the material base material.
The lowest rigidity of the gradual change portion is 80-90% of the reference rigidity.
The lowest rigidity of the gradual change part is 85% of the reference rigidity.
The manufacturing method comprises the following steps: the earphone membrane is fixed by the annular fixing ring, a medium is adopted to move towards the earphone membrane under the driving of the driving part, so that the annular part between the middle circular part of the earphone membrane and the inner side of the annular fixing ring generates excessive deformation, and the membrane body of the earphone membrane is made of a high polymer chemical combination material.
The medium is a round rod-shaped body, and the driving part is one of a motor, a gear driving part, a hydraulic driving part and an electromagnetic driving part.
The outer diameter of the round rod-shaped body is 1-3 mm smaller than the diameter of the annular fixing ring.
The round rod-shaped body is made of metal or nylon, the head of the round rod-shaped body is spherical, the end face of the round rod-shaped body is provided with a plane, and the plane is used for keeping the rigidity of the part, in contact with the earphone membrane, consistent.
The medium is air, the driving part is a compressed air tank, and the pressure generated by the compressed air tank is equal to the pressure for generating excessive deformation of the earphone membrane.
When air is used as a medium for processing, a reinforcing sheet is adhered in the middle of the earphone membrane.
The earphone membrane is moved by a distance of 0.1-0.8 mm by the medium in the process of generating excessive deformation.
The method for processing the earphone membrane of the earphone is improved to obtain the membrane body with gradually changed rigidity, so that the unit of the earphone has a wider frequency response range, can have better instant dynamic and clear pronunciation, is favorable for improving the tone quality, and has the advantages of saving the production cost and obtaining a high-quality pronunciation unit.
Description of the drawings:
FIG. 1 is a schematic view of the structure of the membrane of the present invention.
FIG. 2 is a schematic view of the structure of the processing apparatus of the present invention.
FIG. 3 is a schematic view of another embodiment of the present invention.
The specific implementation mode is as follows:
as shown in fig. 1 to 3, a headphone film with gradually changing rigidity is characterized in that a film body of the headphone film is made of a polymer compound material as a base material, the headphone film is circular, the headphone film comprises an outer ring portion 11, a gradually changing portion 12 and a central portion 13 which are sequentially sleeved in an annular manner, the rigidity of the base material of the film body is taken as a reference rigidity, the rigidity of the gradually changing portion gradually changes from the outer rigidity to the inner rigidity from the reference rigidity to the lowest rigidity and then to the reference rigidity, and the rigidity of the outer ring portion and the central portion is consistent with the rigidity of the base material. The width of the outer ring part is 1mm to 2.5mm, the width of the gradual change part is 15% -45% of the diameter of the earphone membrane, the center part is connected to the center of the gradual change part, and due to the low rigidity of the gradual change part, the connection rigidity of the center part is lowered, so that the earphone membrane is beneficial to low-frequency vibration. The high polymer compound material comprises one of PET, PEN, PEI, PI, LCP, PEEK, PC, PPS and PAR, the thickness of the membrane body is 6-10 micrometers, preferably 7-8 micrometers, the applicable thicknesses of different materials are different, the thicknesses can be specifically selected according to the materials, the coil is connected at the connecting part of the outer ring part and the gradual change part, the periphery of the coil is a part with higher rigidity, the inner periphery of the coil is a part with lower rigidity, the rebound speed with lower rigidity can be slowed down, the sound frequency is reduced, and an earphone unit adopting the vibrating membrane structure has a higher frequency response range.
The lowest rigidity of the gradual change portion is 80-90% of the reference rigidity. The rigidity of the gradual change part is low, the rebound speed is low, and the low frequency is favorably generated.
The lowest rigidity of the gradual change part is 85% of the reference rigidity.
The manufacturing method comprises the following steps: the earphone membrane 1 is fixed by the annular fixing ring 2, a medium is adopted to move towards the earphone membrane under the driving of the driving part, so that the annular part between the middle circular part of the earphone membrane and the inner side of the annular fixing ring is excessively deformed, and the membrane body of the earphone membrane is made of a high molecular compound material and serves as a base material. The medium is moved back and forth for multiple times to enhance the effect of excessive deformation, and the deformation degree can be controlled by multiple movements.
The medium is a round rod-shaped body 3, and the driving part 4 is one of a motor, a gear driving part, a hydraulic driving part and an electromagnetic driving part. The round rod-shaped body moves back and forth towards the earphone membrane, and preferably, the moving speed of the round rod-shaped body is 0.2-2M/s. Preferably 1M/s.
The outer diameter of the round rod-shaped body 3 is 1-3 mm smaller than the diameter of the annular fixing ring. The smaller size of the circular rod allows the periphery of the membrane to be made one revolution without excessive deformation without contact with the circular rod, thereby maintaining the rigidity of the periphery.
As a modified example, the round rod-shaped body can be preheated and matched with a low moving speed, such as 0.2M/s, and the earphone membrane can be excessively deformed by adopting thermal deformation. The circular rod-shaped body with a certain temperature has heat transfer with the film body after contacting the film body, and the reference rigidity of the film body can be properly reduced, so that the film body is easier to generate excessive deformation, and the production efficiency is improved.
The round rod-shaped body is made of metal or nylon, the head of the round rod-shaped body is spherical, the end face of the round rod-shaped body is provided with a plane, and the plane is used for keeping the rigidity of the part, in contact with the earphone membrane, consistent. After moving and contacting, the earphone membrane can contact the plane at the front end of the round rod-shaped body firstly and then contact the arc surface of the side edge, and under the action of pressure, the arc surface of the side edge enables the membrane body to generate a certain amount of excessive deformation.
The medium is air 3 ', the driving part is a compressed air tank 4', an output pipe of the compressed air tank is aligned to the membrane body, a distance of 1-2 mm is reserved between the output pipe and the earphone membrane, the diameter of the output pipe is 1-2 mm smaller than that of the earphone membrane, and the pressure generated by the compressed air tank is equal to the pressure for enabling the earphone membrane to generate excessive deformation. In the method step of adopting compressed air tank to drive air to perform transition deformation, the annular fixing ring is arranged in the guide air groove, the outer edge of the annular fixing ring is provided with the vent groove, the annular fixing ring is arranged in the vent groove, the vent groove is arranged outside the structure, and after the air punches the membrane body, the air can flow out from the side edge, so that the air pressure can be balanced. And the high air pressure impact is carried out for many times to lead the earphone membrane to generate excessive deformation, thereby forming the earphone membrane with gradually changed rigidity.
When air is used as a medium for processing, a reinforcing sheet is adhered in the middle of the earphone membrane. The reinforcing sheet is annular, and the reinforcing sheet can prevent the middle part of the earphone membrane from generating excessive deformation.
The earphone membrane is moved by a distance of 0.1-0.8 mm by the medium in the process of generating excessive deformation. The moving distance is that the earphone membrane can continue to move after being excessively deformed, and the original rigidity of the earphone membrane can be damaged by matching with the moving speed and the impact frequency, so that a part with reduced rigidity is formed, and a membrane body with gradually changed rigidity is obtained. Since the earphone membranes have different fabricated diameters, the different diameters have different over-deformation distances.
The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (10)
1. The earphone membrane with gradually-changed rigidity is characterized in that a membrane body of the earphone membrane is made of a high polymer compound material serving as a membrane body base material, the membrane body is circular, the earphone membrane comprises an outer ring portion, a gradually-changed portion and a central portion, the outer ring portion, the gradually-changed portion and the central portion are sequentially sleeved in an annular mode, the rigidity of the membrane body base material is used as reference rigidity, the rigidity of the gradually-changed portion is gradually changed from the reference rigidity to the lowest rigidity and then is changed to the reference rigidity, and the rigidity of the outer ring portion and the rigidity of the central portion are consistent with the rigidity of the membrane body base material.
2. The earphone film with gradually changing rigidity according to claim 1, wherein the gradually changing portion has a lowest rigidity of 80 to 90% of a reference rigidity.
3. The earphone film having a gradually changing rigidity according to claim 2, wherein the gradually changing portion has a lowest rigidity of 85% of a reference rigidity.
4. A method for manufacturing an earphone film with gradually changed rigidity is characterized by comprising the following steps: the earphone membrane is fixed by the annular fixing ring, a medium is adopted to move towards the earphone membrane under the driving of the driving part, so that the annular part between the middle circular part of the earphone membrane and the inner side of the annular fixing ring generates excessive deformation, and the membrane body of the earphone membrane is made of a high polymer chemical combination material.
5. The method as claimed in claim 4, wherein the medium is a circular rod, and the driving member is one of a motor and a gear driving member, a hydraulic driving member, and an electromagnetic driving member.
6. The method of claim 5, wherein the outer diameter of the circular rod is 1-3 mm smaller than the diameter of the annular retainer ring.
7. The method for manufacturing an earphone diaphragm with gradually-changed rigidity according to claim 5, wherein the circular rod-shaped body is made of metal or nylon, the head of the circular rod-shaped body is spherical, and the end surface of the circular rod-shaped body is provided with a plane which is used for keeping the rigidity of the contact part of the circular rod-shaped body and the earphone diaphragm consistent.
8. The method of claim 4, wherein the medium is air, the driving member is a compressed air tank, and the pressure generated by the compressed air tank is equal to the pressure for excessively deforming the earphone membrane.
9. The method of claim 8, wherein a reinforcing sheet is adhered to the middle of the earphone membrane when processing is performed with air as a medium.
10. The method for manufacturing an earphone film with gradually-changed rigidity according to claim 8, wherein the earphone film is excessively deformed by moving the earphone film by a distance of 0.1-0.8 mm through a medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911223180.9A CN110996206B (en) | 2019-12-03 | 2019-12-03 | Earphone membrane with gradually-changed rigidity and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911223180.9A CN110996206B (en) | 2019-12-03 | 2019-12-03 | Earphone membrane with gradually-changed rigidity and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN110996206A CN110996206A (en) | 2020-04-10 |
| CN110996206B true CN110996206B (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911223180.9A Active CN110996206B (en) | 2019-12-03 | 2019-12-03 | Earphone membrane with gradually-changed rigidity and manufacturing method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111654803A (en) * | 2020-04-22 | 2020-09-11 | 深圳市信维通信股份有限公司 | Preparation method of liquid crystal film, liquid crystal film and earphone diaphragm |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102014334A (en) * | 2010-01-29 | 2011-04-13 | 江苏东禾电声配件有限公司 | Sound film molding pressing die for loudspeaker |
| US8094865B2 (en) * | 2000-01-19 | 2012-01-10 | Harman International Industries, Incorporated | Speaker surround structure for maximizing cone diameter |
| CN109068246A (en) * | 2018-08-02 | 2018-12-21 | 瑞声光电科技(常州)有限公司 | Vibrating diaphragm and loudspeaker with the vibrating diaphragm |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203933955U (en) * | 2014-04-30 | 2014-11-05 | 惠阳东亚电子制品有限公司 | The heat pressing and molding mold of loud speaker parts |
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2019
- 2019-12-03 CN CN201911223180.9A patent/CN110996206B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8094865B2 (en) * | 2000-01-19 | 2012-01-10 | Harman International Industries, Incorporated | Speaker surround structure for maximizing cone diameter |
| CN102014334A (en) * | 2010-01-29 | 2011-04-13 | 江苏东禾电声配件有限公司 | Sound film molding pressing die for loudspeaker |
| CN109068246A (en) * | 2018-08-02 | 2018-12-21 | 瑞声光电科技(常州)有限公司 | Vibrating diaphragm and loudspeaker with the vibrating diaphragm |
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| CN110996206A (en) | 2020-04-10 |
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Effective date of registration: 20211124 Address after: 515000 Heping Mudan Industrial Park, Chaoyang District, Shantou City, Guangdong Province Patentee after: Guangdong Kang Biotechnology Co.,Ltd. infant treasure Address before: 518000 Room 301, building A1, 22 Dafu Industrial Zone, Dafu community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Patentee before: Shenzhen huanpai Electronic Technology Co.,Ltd. |
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