CN218124900U - Earphone shell - Google Patents
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- CN218124900U CN218124900U CN202222261110.6U CN202222261110U CN218124900U CN 218124900 U CN218124900 U CN 218124900U CN 202222261110 U CN202222261110 U CN 202222261110U CN 218124900 U CN218124900 U CN 218124900U
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Abstract
The utility model relates to an earphone shell, it includes the shell body, the shell body includes lattice structure elastomer and elastic resin layer, and the thermoplastic elastomer that lattice structure elastomer formed for 3D prints, and thermoplastic elastomer's porosity is 15% ~ 35%, and thermoplastic elastomer's density is 0.7-1.1g/cm3, the elastic resin layer form at least in lattice structure elastomer's inside hole and with lattice structure elastomer between combine. The utility model discloses in the inside hole with elasticity resin infiltration lattice structure elastomer and make the two closely combine in order to form the shell body, not only satisfy the dead weight light, thickness is thin, strengthen intensity, elasticity and the compressive property of shell body moreover by a wide margin, also promoted the comfort level of income ear by a wide margin, improve give sound insulation, fall the noise, function such as load, ventilative, in addition, the laminating duct reduces the long-time injury of income ear to the duct of earphone.
Description
Technical Field
The utility model belongs to the electronic components field, concretely relates to earphone shell.
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.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art not enough, provide a modified earphone shell.
In order to solve the technical problem, the utility model discloses take following technical scheme: the earphone shell 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.
Preferably, the elastic resin layer is also formed on the surface of the thermoplastic elastomer.
Further, the outer surface of the thermoplastic elastomer is formed with a plurality of layers and is located on the inner and/or outer surface of the thermoplastic elastomer. Further improve shell body's intensity, elasticity, shock resistance, can not increase holistic thickness moreover yet.
Preferably, the size of each lattice cell structure shape constituting the lattice structure elastomer is the same.
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 implementation and preferred aspect of the utility model, thermoplastic elastomer includes interior stopper part and outer stopper part, and wherein the external auditory canal is filled in to interior stopper part, and outer stopper part holds the chamber with interior stopper part formation, and partly laminating auricle in the outer stopper part, another part exposes outside the ear. The shell body that forms like this not only gives sound insulation, falls the function such as making an uproar, load, ventilative, gives the user different experience, 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 to the duct of earphone.
Preferably, 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, 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 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.
According to the utility model discloses a still another concrete implementation and preferred aspect, the interior stopper part includes first cock body, second cock body, and wherein the external auditory canal can be filled in to first cock body, and the second cock body forms accommodation space's portion that exposes including laminating portion on the auricle, with laminating 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 a hollowed lattice structure is formed on the circumferential surface or/and the lower end surface 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-structured elastic body 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 time for the coating treatment is 5 to 20min and the time for the heating treatment is 3 to 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 one or more selected from a group consisting of a polyurethane resin, an acrylic resin, and a silicone resin.
The utility model discloses the people discovers through the research, with lattice structure elastomer and the raw materials that contain elastic resin or form elastic resin, the treatment fluid of resin curing agent fully contacts, and heat the solidification, elastic resin can form the elastic resin layer in lattice structure elastomer's inside hole and lattice structure elastomer's surface, elastic resin and lattice structure elastomer solidification, bonding, compound, fill lattice structure elastomer's inside hole, and then can obtain the shell body of 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 are, the higher the porosity of the printed lattice structure elastomer is, the higher the content of the elastic resin in the shell body is, and the better the compression resistance of the shell body is.
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 above technical scheme, compared with the prior art, the utility model have the following advantage:
the utility model discloses in the inside hole with elasticity resin infiltration lattice structure elastomer and make the two closely combine in order to form the shell body, not only satisfy the dead weight light, thickness is thin, strengthen intensity, elasticity and the compressive resistance performance of shell body moreover by a wide margin, also promoted the comfort level of income ear by a wide margin, improve give sound insulation, fall make an uproar, load, function such as ventilative, in addition, the laminating duct reduces the long-time injury of going into the ear to the duct of earphone.
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 embodiment in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and therefore the application is not 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 explicitly specified otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; 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, and 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 of the outer plug part 101 is exposed out of the ear. The shell body that forms like this not only gives sound insulation, falls the function such as making an uproar, load, ventilative, gives the user different experience, 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 to the duct of earphone.
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 a raw material thereof and a curing agent.
The coating treatment adopts a method of spraying, dip coating or electroplating, and during the coating treatment, the treatment liquid is made to penetrate into the internal pores of the lattice structure elastomer.
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 is treatedThe first 0.61g was increased to 0.86g and the pressure at 50% compression set of the material was increased from 135.2N to 215.4N before treatment. The density of the prepared shell body is 0.981g/cm 3 。
Example 3
Referring to fig. 3, 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 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 interval 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) putting the cured sample into the dipping treatment liquid twice, soaking for 10min, drying by spinning, and curing to obtain a two-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 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 utility model has the advantages of it is following:
1. according to the application, through the composition of the lattice structure elastomer and the elastic resin coating, the elastic resin is infiltrated into the internal pores of the lattice structure elastomer and is tightly combined with the lattice structure elastomer, unexpectedly, the compression resistance of the material is obviously improved on the premise of not influencing the advantageous performance of the lattice structure elastomer, and meanwhile, the volume of the material is not changed, and the weight is only slightly increased. Compared with the lattice structure elastomer without the composite elastic resin coating, the shell body of the utility model has the advantages that the volume is obviously smaller and the weight is obviously 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 utility model provides a preparation technology of shell body adopts 3D to print preparation lattice structure elastomer to adopt coating processing and curing process, on the one hand, through adjusting parameters such as 3D printing temperature and laser power, can control lattice structure elastomer's sintered density and porosity, and then control the degree and the quality of elastic resin infiltration, finally control the degree that shell body compression performance improves, consequently, can prepare the shell body of various performances in a flexible way, with the individualized demand under satisfying various application scenarios. 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 tight, 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 (12)
1. An earphone shell, 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 headset housing of claim 1, wherein: the elastic resin layer is also formed on the surface of the thermoplastic elastomer.
3. The earphone shell of claim 2, wherein: the outer surface of the thermoplastic elastomer is formed with multiple layers and is located on the inner and/or outer surface of the thermoplastic elastomer.
4. The earphone shell of claim 1, wherein: the shape and the size of each lattice cell structure forming the lattice structure elastomer are the same.
5. The earphone shell of 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%.
6. The earphone shell of claim 1, wherein: the mass of the elastic resin layer is 10-30% of the mass of the thermoplastic elastomer.
7. Earphone shell according to any of claims 1-6, 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.
8. The headset housing of claim 7, wherein: 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, the pressure required when the outer plug part is compressed to be deformed to 50% is N2, and N2 is more than or equal to N1 and more than or equal to 150N.
9. The earphone shell of claim 7, wherein: the porosity of the inner plug portion is greater than the porosity of the outer plug portion.
10. The headset housing of claim 9, wherein: the inner plug part comprises a first plug body and a second plug body, wherein the first plug body can be plugged into an external auditory canal, and the second plug body comprises a fitting part fitted on an auricle and an exposed part of which the fitting part forms an accommodating space.
11. The headset housing of claim 10, wherein: the first plug body, the attaching portion and the exposed portion are respectively compressed until the deformation reaches 50%, and the required pressure is sequentially increased.
12. Earphone shell according to claim 10 or 11, 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 dot matrix cell structures are formed on the circumferential surface or/and the lower end face of the outer plug part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222261110.6U CN218124900U (en) | 2022-08-26 | 2022-08-26 | Earphone shell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222261110.6U CN218124900U (en) | 2022-08-26 | 2022-08-26 | Earphone shell |
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| CN218124900U true CN218124900U (en) | 2022-12-23 |
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| CN202222261110.6U Active CN218124900U (en) | 2022-08-26 | 2022-08-26 | Earphone shell |
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- 2022-08-26 CN CN202222261110.6U patent/CN218124900U/en active Active
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