CN115379337A - Elastomer earphone shell based on high-performance composite lattice structure - Google Patents
Elastomer earphone shell based on high-performance composite lattice structure Download PDFInfo
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- CN115379337A CN115379337A CN202211035453.9A CN202211035453A CN115379337A CN 115379337 A CN115379337 A CN 115379337A CN 202211035453 A CN202211035453 A CN 202211035453A CN 115379337 A CN115379337 A CN 115379337A
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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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Abstract
The invention relates to a high-performance composite lattice structure elastomer earphone shell, which comprises a shell body, wherein the shell body comprises a lattice structure elastomer and an elastic resin layer, the lattice structure elastomer is a thermoplastic elastomer formed by 3D printing, the porosity of the thermoplastic elastomer is 15-35%, the density of the thermoplastic elastomer is 0.7-1.1g/cm & lt 3 & gt, and the elastic resin layer is at least formed in the inner pores of the lattice structure elastomer and combined with the lattice structure elastomer. According to the invention, the elastic resin is infiltrated into the internal pores of the lattice structure elastomer and is tightly combined with the lattice structure elastomer to form the shell body, so that the self weight is light, the thickness is thin, the strength, elasticity and compression resistance of the shell body are greatly enhanced, the ear-entering comfort level is greatly improved, the functions of sound insulation, noise reduction, force bearing, ventilation and the like are improved, in addition, the ear canal is attached, and the damage of the earphone to the ear canal caused by long-time ear entering is reduced.
Description
Technical Field
The invention belongs to the field of electronic accessories, and particularly relates to an elastomer earphone shell based on a high-performance composite lattice structure.
Background
As is well known, an earphone includes an earphone housing, a speaker, and a signal processor, wherein the signal processor is in wired or wireless communication with an electronic product (e.g., a mobile phone, a computer, a pad, or a radio), and transmits an obtained electrical signal to the speaker through the signal processor, and then forms a sound wave through vibration output of the speaker. That is, the earphone is a pair of conversion units that receive electrical signals from a media player or receiver and convert them into audible sound waves using a speaker proximate to the ear.
However, the existing earphone shell is mostly made of hard materials, the ear canal is easily discomfortable after the earphone shell is used for a long time, and the use experience of a user is seriously influenced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an improved earphone shell based on a high-performance composite type lattice structure elastomer.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a based on compound lattice structure elastomer earphone shell of high performance, it includes the shell body, the shell body includes lattice structure elastomer and elastic resin layer, and the lattice structure elastomer is the thermoplastic elastomer that 3D printed and forms, and the porosity of thermoplastic elastomer is 15% -35%, and the density of thermoplastic elastomer is 0.7-1.1g/cm3, and the elastic resin layer forms at least in the internal hole of lattice structure elastomer and combines between the lattice structure elastomer.
Preferably, the elastic resin layer is also formed on the surface of the thermoplastic elastomer. Further improve shell body's intensity, elasticity, shock resistance, can not increase holistic thickness moreover yet.
Preferably, the elastic resin constituting the elastic resin layer has a hardness of 50 Shore A or more and 40 Shore D or less, a viscosity of less than 12000cP at 25 ℃, a tensile strength of 5MPa or more, and an elongation at break of 120% or more.
Preferably, the mass of the elastic resin layer is 10% to 30% of the mass of the thermoplastic elastomer. The strength, elasticity and impact resistance of the shell body are improved, and the optimized weight reduction is realized on the premise that the elastic buffering capacity is enough.
According to a specific embodiment and preferred aspect of the present invention, the thermoplastic elastomer comprises an inner plug portion and an outer plug portion, wherein the inner plug portion is inserted into the external auditory canal, the outer plug portion and the inner plug portion form a receiving cavity, and one part of the outer plug portion fits the auricle and the other part is exposed outside the ear. The shell body that forms like this not only gives the user different experience with functions such as give sound insulation, fall make an uproar, load, ventilative, has promoted the comfort level of going into the ear moreover greatly, can also laminate the duct simultaneously, reduces the long-time injury of going into the ear of earphone to the duct.
Preferably, the outer plug part and the inner plug part are integrally formed, the pressure required when the inner plug part is compressed to be deformed to 50% is N1, and the pressure required when the outer plug part is compressed to be deformed to 50% is N2, wherein N2 is more than or equal to N1 and more than or equal to 150N. This indicates that the inner plug portion is more flexible than the outer plug portion.
Preferably, the porosity of the inner plug portion is greater than the porosity of the outer plug portion. Thus, the comfort of the ear is ensured through the contact at different positions and different compression deformation, and the functions of sound insulation, noise reduction, force bearing, ventilation and the like are improved.
According to still another embodiment and preferred aspect of the present invention, the inner plug portion includes a first plug body capable of being inserted into the external auditory meatus, and a second plug body including an attaching portion attached to the auricle and an exposed portion forming a receiving space with the attaching portion.
Preferably, the first plug body, the fitting portion, and the exposed portion are compressed to a pressure required when the deformation is 50%, and the pressure is sequentially increased.
Preferably, the outer plug part extends downwards from the exposed part, the lower end part of the outer plug part is arranged in a closed mode, and hollow lattice structures are formed on the circumferential surface or/and the lower end face of the outer plug part.
According to still another embodiment and preferred aspect of the present invention, the shell body is formed by coating the lattice structure elastomer with a treatment liquid containing the elastic resin or its raw material, and a curing agent.
Preferably, the coating treatment is performed by spraying, dipping or electroplating, and the treatment liquid is allowed to penetrate into the internal pores of the lattice structure elastomer.
In some embodiments, the coating treatment time is 5-20min and the heating treatment time is 3-12h.
Further, the mass concentration of the elastic resin in the treatment liquid is 30-60%, and the mass concentration of the curing agent is 1-10%. In some embodiments, the mass concentration of the elastomeric resin in the treatment fluid is 40-55% and the mass concentration of the curing agent is 2-5%.
In some embodiments, the heat curing is performed at a temperature of 80 to 100 ℃, and the coating treatment and the heat curing are performed once or repeated 1 to 3 times after one time.
Further, the resin constituting the thermoplastic elastomer is one or a combination of two selected from a thermoplastic polyurethane resin and a thermoplastic polyethylene resin.
In some embodiments of the present invention, the elastic resin constituting the elastic resin layer is a combination of one or more selected from a polyurethane resin, an acrylic resin, and a silicone resin.
The inventor of the present invention found that when a lattice structure elastomer is sufficiently contacted with a treatment liquid containing an elastic resin or a raw material for forming the elastic resin and a resin curing agent, and heated and cured, the elastic resin forms an elastic resin layer in the internal pores of the lattice structure elastomer and on the outer surface of the lattice structure elastomer, and the elastic resin is cured, bonded and compounded with the lattice structure elastomer to fill the internal pores of the lattice structure elastomer, thereby obtaining a shell body with excellent mechanical properties. The shell body has higher compression resistance under the same weight; the material has a lower weight, while achieving the same compression properties. In addition, the elastic resin layer positioned on the outer surface of the lattice structure elastomer can reduce the surface roughness of the material, so that the surface of the shell body is smooth.
The lattice structure elastomer is prepared by 3D printing. By adjusting parameters such as 3D printing temperature and laser energy, the sintering density and porosity of the lattice structure elastomer can be controlled, and further the penetration depth and quality of the elastic resin can be controlled. The lower the temperature and the laser power, the higher the porosity of the printed lattice structure elastomer, the higher the content of the elastic resin in the shell body, and the better the compression resistance of the shell body.
In some embodiments, the parameters used are as follows: the temperature is 80-140 deg.C, the laser power is 30-100W, the scanning speed is 4000-15000mm/s, and the scanning interval is 0.1-0.3mm.
Meanwhile, the lattice cell structure constituting the lattice structure elastomer is not particularly limited. The lattice cell structure may be a common cube, star, octagon, hexagon, rhombus, tetrahedron, etc.
Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the invention, the elastic resin is infiltrated into the internal pores of the lattice structure elastomer and is tightly combined with the lattice structure elastomer to form the shell body, so that the self weight is light, the thickness is thin, the strength, elasticity and compression resistance of the shell body are greatly enhanced, the ear-entering comfort level is greatly improved, the functions of sound insulation, noise reduction, force bearing, ventilation and the like are improved, in addition, the ear canal is attached, and the damage of the earphone to the ear canal caused by long-time ear entering is reduced.
Drawings
FIG. 1 is a schematic view of a structure of a middle ear housing according to embodiment 1;
FIG. 2 is a schematic view of the structure of the earphone housing according to embodiment 2;
FIG. 3 is a schematic view of the structure of the earphone housing according to embodiment 3;
FIG. 4 is a schematic view of the structure of the earphone housing according to embodiment 4;
wherein: 1. a housing body; 10. a lattice structure elastomer; 100. an inner plug portion; a1, a first plug body; a2, a second plug body; a21, a bonding part; a22, an exposed part; 101. an outer plug portion.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Example 1
As shown in fig. 1, the earphone shell based on the high-performance composite lattice structure elastomer according to the present embodiment includes a shell body 1.
The shell body 1 comprises a lattice structure elastomer 10 and an elastic resin layer, wherein the lattice structure elastomer 10 takes Thermoplastic Polyurethane (TPU) as a raw material, the lattice structure elastomer is printed out by 3D through powder sintering molding, and the process parameters are that the main temperature is 100-120 ℃, the laser power is 50W, the scanning speed is 4000-8000mm/s, and the scanning distance is 0.2mm.
The elastic resin layer is formed in the internal pores of the lattice structure elastic body 10 and bonded to the lattice structure elastic body 10.
The lattice structure elastomer 10 is a thermoplastic elastomer formed by 3D printing, the porosity of the thermoplastic elastomer is 15% -35%, and the density of the thermoplastic elastomer is 0.7-1.1g/cm < 3 >.
The hardness of the elastic resin composing the elastic resin layer is more than 50A Shore hardness and less than 40D Shore hardness, the viscosity at 25 ℃ is less than 12000cP, the tensile strength is more than 5MPa, and the elongation at break is more than 120%.
The mass of the elastic resin layer is 10-30% of that of the thermoplastic elastomer. The strength, elasticity and impact resistance of the shell body are improved, and the optimized weight reduction is realized on the premise that the elastic buffering capacity is enough.
The thermoplastic elastomer 10 comprises an inner plug part 100 and an outer plug part 101, wherein the inner plug part 100 is plugged into the external auditory canal, the outer plug part 101 and the inner plug part 100 form a containing cavity, one part of the outer plug part 101 is attached to the auricle, and the other part is exposed out of the ear. The shell body that forms like this not only gives the user different experience with functions such as give sound insulation, fall make an uproar, load, ventilative, has promoted the comfort level of going into the ear moreover greatly, can also laminate the duct simultaneously, reduces the long-time injury of going into the ear of earphone to the duct.
The inner plug portion 100 includes a first plug body a1 and a second plug body a2, wherein the first plug body a1 can be plugged into the external auditory canal, and the second plug body a2 includes a fitting portion a21 fitting on the auricle and an exposed portion a22 forming a receiving space with the fitting portion a 21.
The first plug body a1, the fitting portion a21, and the exposed portion a22 are arranged so that the pressures required for the compression until the deformation reaches 50% are sequentially increased.
The outer plug part 101 extends downwards from the exposed part a22, and the lower end part is closed, wherein a hollowed lattice structure is formed on the circumferential surface or/and the lower end surface of the outer plug part 101.
The outer plug part 101 and the inner plug part 100 are integrally formed, the pressure required when the inner plug part 100 is compressed to be deformed to 50% is N1, the pressure required when the outer plug part 101 is compressed to be deformed to 50% is N2, wherein N2 is more than or equal to N1 and more than or equal to 150N. This indicates that the inner plug portion is more flexible than the outer plug portion.
The porosity of the inner plug portion 100 is greater than the porosity of the outer plug portion 101. Thus, the ear comfort is ensured by the contact at different positions and the different compression deformation, and the functions of sound insulation, noise reduction, force bearing, ventilation and the like are improved.
The case body 1 is formed by coating the lattice structure elastomer with a treatment liquid containing the elastic resin or the raw material thereof and a curing agent.
The coating treatment adopts a method of spraying, dip coating or electroplating, and the treatment liquid is made to penetrate into the internal pores of the lattice structure elastomer during the coating treatment.
Meanwhile, in this example, the case body 1 includes a lattice structure elastomer and an elastic resin layer, and the molding process includes the steps of:
1) Thermoplastic Polyurethane (TPU) is used as a raw material, and the elastomer with the lattice structure is printed out by 3D through powder sintering molding, wherein the process parameters are that the main temperature is 100-120 ℃, the laser power is 50W, the scanning speed is 4000-8000mm/s, and the scanning distance is 0.2mm.
2) 94 parts by mass of a commercially available polyurethane resin solution with a mass concentration of 45% and 6 parts by mass of an isocyanate curing agent are uniformly mixed and dispersed by a high-speed stirrer to obtain an impregnation treatment liquid, wherein the polyurethane resin has a hardness of 60A, a viscosity of 8000cP at 25 ℃, a tensile strength of 10MPa and an elongation at break of 200%.
3) Soaking the printed lattice structure elastomer in the dipping treatment liquid prepared in the step 2) for 8min, taking out the elastomer, drying the elastomer by spinning, and then putting the elastomer into a vacuum oven at the temperature of 80 +/-2 ℃ for curing for 2.5h to obtain a composite material sample.
The sintered density and porosity of the lattice structure elastomer obtained at different scanning rates, and the weight and compression set of the lattice structure elastomer before and after the treatment of the polyurethane resin at 50% are shown in table 1 below:
TABLE 1
As can be seen from the table 1 above, through the technological parameter of control 3D printing, can adjust the sintering density and the porosity of lattice structure elastomer, the porosity is big more, and the content of polyurethane resin is more in the shell body, and the anti compressibility of composite elastomer material promotes more.
Example 2
As shown in fig. 2, the earphone shell based on the high-performance composite lattice structure elastomer according to the present embodiment includes a shell body 1, and the structure of the shell body 1 is substantially the same as that of embodiment 1, except that the difference is that.
The lattice structure elastomer 10 has a different lattice cell structure.
Meanwhile, in this example, the process of molding the lattice structure elastomer 10 and the elastic resin layer includes the steps of:
1) Thermoplastic Polyurethane (TPU) is used as a raw material, and the elastomer with the lattice structure is printed out by 3D through powder sintering molding, wherein the process parameters are that the main temperature is 100-120 ℃, the laser power is 55W, the scanning speed is 4000mm/s, and the scanning distance is 0.3mm;
2) 98 parts by mass of a commercially available acrylic resin solution with the mass concentration of about 55% and 2 parts by mass of a curing agent 4,4' -methylenebis (2-methylcyclohexylamine) are uniformly mixed and dispersed by a high-speed stirrer to obtain an impregnation treatment liquid, wherein the acrylic resin has the hardness of 70A, the viscosity of 10000cP at 25 ℃, the tensile strength of 12MPa and the elongation at break of 180%;
3) Soaking the printed TPU lattice structure elastomer in the dipping treatment liquid for 10min, taking out the TPU lattice structure elastomer, drying the TPU lattice structure elastomer by drying, and then putting the TPU lattice structure elastomer into a vacuum oven at 80 ℃ for curing for 5h to obtain a shell body sample;
4) And (3) putting the cured sample into the dipping treatment liquid again, soaking for 10min, drying by spinning, and curing to form an elastic resin layer on the surface of the lattice structure elastomer in the shell body 1.
At this time, the weight of the case body 1 was increased from 0.61g before treatment to 0.86g, and the pressure at 50% compression set of the material was increased from 135.2N before treatment to 215.4N. The density of the prepared shell body is 0.981g/cm 3 。
Example 3
Referring to fig. 3, the high performance composite lattice structure-based elastomer headphone shell according to the present embodiment includes a shell body 1, and the structure of the shell body 1 is substantially the same as that of embodiment 2, except that the difference is that.
The lattice structure elastomer 10 has a different lattice cell structure.
Meanwhile, in this example, the process of molding the lattice structure elastomer 10 and the elastic resin layer includes the steps of:
1) Thermoplastic Polyurethane (TPU) is used as a raw material, and the elastomer with the lattice structure is printed out by 3D through powder sintering molding, wherein the process parameters are that the main temperature is 100-120 ℃, the laser power is 80W, the scanning speed is 4000mm/s, and the scanning distance is 0.2mm;
2) 98 parts by mass of a commercially available acrylic resin solution with the mass concentration of about 55% and 2 parts by mass of a curing agent 4,4' -methylenebis (2-methylcyclohexylamine) are uniformly mixed and dispersed by a high-speed stirrer to obtain an impregnation treatment liquid, wherein the acrylic resin has the hardness of 70A, the viscosity of 10000cP at 25 ℃, the tensile strength of 12MPa and the elongation at break of 180%;
3) Soaking the printed TPU lattice structure elastomer in the dipping treatment liquid for 10min, taking out the TPU lattice structure elastomer, drying the TPU lattice structure elastomer by drying, and then putting the TPU lattice structure elastomer into a vacuum oven at 80 ℃ for curing for 5h to obtain a shell body sample;
4) And (3) repeatedly placing the cured sample into the dipping treatment liquid twice, soaking for 10min, spin-drying and curing to obtain a composite elastomer material sample of two layers of polyurethane resin.
At this time, the weight of the case body 1 was increased from 0.61g before treatment to 0.96g, and the pressure at 50% compression set of the material was increased from 135.2N before treatment to 235.2N. The density of the prepared shell body is 0.997g/cm 3 。
Example 4
Referring to fig. 4, the seat cushion according to the present embodiment has basically the same structure as that of embodiment 1, and the differences are as follows.
The lattice-structured elastic body 10 has a different lattice cell structure.
Meanwhile, in this example, the process of molding the lattice structure elastomer 10 and the elastic resin layer includes the steps of:
1) Thermoplastic Polyurethane (TPU) is used as a raw material, and the elastomer with the lattice structure is printed out by 3D through powder sintering molding, wherein the process parameters are that the main temperature is 100-120 ℃, the laser power is 50W, the scanning speed is 4000-8000mm/s, and the scanning distance is 0.2mm.
2) 94 parts by mass of a commercially available polyurethane resin solution with a mass concentration of 45% and 6 parts by mass of an isocyanate curing agent are uniformly mixed and dispersed by a high-speed stirrer to obtain an impregnation treatment liquid, wherein the polyurethane resin has a hardness of 60A, a viscosity of 8000cP at 25 ℃, a tensile strength of 10MPa and an elongation at break of 200%.
3) Soaking the printed lattice structure elastomer in the dipping treatment liquid prepared in the step 2) for 8min, taking out, drying, and then putting into a vacuum oven at 80 +/-2 ℃ for curing for 2.5h to obtain a composite material sample;
4) And (3) repeatedly placing the cured sample into the dipping treatment liquid for three times, soaking for 10min, drying by spinning, and curing to obtain a three-layer polyurethane resin composite elastomer material sample.
At this time, the weight of the case body 1 was increased from 0.61g before treatment to 1.11g, and the pressure at 50% compression set of the material was increased from 135.2N before treatment to 269.9N. The density of the prepared shell body is 1.091g/cm 3 。
Therefore, the present invention has the following advantages:
1. this application makes the elasticity resin permeate in the inside hole of lattice structure elastomer and make the two combine closely through the complex of lattice structure elastomer and elasticity resin coating, unexpectedly, under the prerequisite that does not influence lattice structure elastomer advantage performance, is showing the resistance to compression performance that has improved the material, and the volume of material is unchangeable simultaneously, and weight has only slight increase. Compared with the lattice structure elastomer without the composite elastic resin coating, the shell body has the advantages that the volume is remarkably smaller and the weight is remarkably lighter when the same compression resistance is achieved; the compression resistance of the shell body of the present application is significantly higher at the same weight.
2. The preparation technology of the shell body adopts 3D printing to prepare the lattice structure elastomer, and adopts coating treatment and curing technology, on one hand, through adjusting parameters such as 3D printing temperature and laser power, the sintering density and porosity of the lattice structure elastomer can be controlled, further the penetration depth and quality of elastic resin are controlled, and finally the degree of improving the compression performance of the shell body is controlled, so that the shell body with various performances can be flexibly prepared, and the individual requirements under various application scenes can be met. On the other hand, by adopting the coating treatment and curing process, the combination between the lattice structure elastomer and the elastic resin coating is more sufficient and compact, which is beneficial to improving the strength and the service life of the shell body.
3. Not only satisfy the dead weight light, thickness is thin, also strengthen the intensity, elasticity and the anti compression performance of shell body moreover by a wide margin, also promoted the comfort level of going into the ear by a wide margin, improve give sound insulation, fall make an uproar, function such as load, ventilative, in addition, the laminating duct reduces the earphone and goes into the injury of ear to the duct for a long time.
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
Claims (13)
1. The utility model provides a based on compound lattice structure elastomer earphone shell of high performance, it includes the shell body, its characterized in that: the shell body comprises a lattice structure elastomer and an elastic resin layer, the lattice structure elastomer is a thermoplastic elastomer formed by 3D printing, the porosity of the thermoplastic elastomer is 15% -35%, the density of the thermoplastic elastomer is 0.7-1.1g/cm & lt 3 & gt, and the elastic resin layer is at least formed in the inner pores of the lattice structure elastomer and combined with the lattice structure elastomer.
2. The high-performance composite lattice structure-based elastomer earphone shell according to claim 1, wherein: the elastic resin layer is also formed on the surface of the thermoplastic elastomer.
3. The high-performance composite lattice structure-based elastomer earphone shell according to claim 1, wherein: the hardness of the elastic resin forming the elastic resin layer is more than 50A Shore hardness and less than 40D Shore hardness, the viscosity at 25 ℃ is less than 12000cP, the tensile strength is more than 5MPa, and the elongation at break is more than 120%.
4. The high-performance composite lattice structure-based elastomer earphone shell according to claim 1, wherein: the mass of the elastic resin layer is 10-30% of the mass of the thermoplastic elastomer.
5. The high-performance composite lattice structure-based elastomer earphone shell according to any one of claims 1 to 4, wherein: the thermoplastic elastomer comprises an inner plug part and an outer plug part, wherein the inner plug part is plugged into an external auditory canal, the outer plug part and the inner plug part form a containing cavity, one part of the outer plug part is attached to an auricle, and the other part of the outer plug part is exposed out of an ear.
6. The high-performance composite type lattice structure-based elastomer earphone shell according to claim 5, wherein: the outer plug part and the inner plug part are integrally formed, the pressure required when the inner plug part is compressed to deform 50% is N1, the pressure required when the outer plug part is compressed to deform 50% is N2, and N2 is more than or equal to N1 and more than or equal to 150N.
7. The high-performance composite type lattice structure-based elastomer earphone shell according to claim 5, wherein: the porosity of the inner plug portion is greater than the porosity of the outer plug portion.
8. The high-performance composite type lattice structure-based elastomer earphone shell according to claim 5, wherein: the interior stopper part includes first cock body, second cock body, wherein external auditory canal can be filled in to first cock body, the second cock body including the laminating portion of laminating on the auricle, with laminating portion forms accommodation space's the portion that exposes.
9. The high-performance composite type lattice structure-based elastomer earphone shell according to claim 8, wherein: the first plug body, the fitting portion and the exposed portion are respectively compressed until the required pressure is increased when the deformation is 50%.
10. The high-performance composite lattice structure-based elastomer earphone shell according to claim 8, wherein: the outer plug part extends downwards from the exposed part and the lower end part of the outer plug part is arranged in a closed mode, and hollow lattice structures are formed on the circumferential surface or/and the lower end face of the outer plug part.
11. The high-performance composite lattice structure-based elastomer earphone shell according to claim 1, wherein: the shell body is formed by coating the elastic body with the lattice structure by using a treatment liquid containing the elastic resin or raw materials thereof and a curing agent.
12. The high-performance composite lattice structure-based elastomer earphone shell according to claim 11, wherein: the coating treatment adopts a method of spraying, dip coating or electroplating, and the treatment liquid is made to penetrate into the internal pores of the lattice structure elastomer during the coating treatment.
13. The high-performance composite lattice structure-based elastomer earphone shell according to claim 11 or 12, wherein: the mass concentration of the elastic resin in the treatment liquid is 30-60%, the mass concentration of the curing agent is 1-10%, the heating and curing are carried out at the temperature of 80-100 ℃, and the coating treatment and the heating and curing are carried out once or are repeated for 1-3 times after one time.
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| CN202211035453.9A CN115379337A (en) | 2022-08-26 | 2022-08-26 | Elastomer earphone shell based on high-performance composite lattice structure |
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| CN202211035453.9A CN115379337A (en) | 2022-08-26 | 2022-08-26 | Elastomer earphone shell based on high-performance composite lattice structure |
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