Housing and earphone

Abstract

The present application relates to the technical field of electronic devices, and specifically relates to a housing (100) and an earphone. The housing (100) comprises an inner shell (1001) and a silica gel coating (1002) arranged on at least part of the outer surface of the inner shell (1001), wherein the silica gel coating (1002) comprises a first silica gel coating (1003) and a second silica gel coating (1004), which are stacked in sequence on the outer surface of the inner shell (1001); the first silica gel coating (1003) is bonded and fixed on the outer surface of the inner shell (1001); the second silica gel coating (1004) covers the side of the first silica gel coating (1003) facing away from the inner shell (1001); the hardness of the second silica gel coating (1004) is greater than that of the first silica gel coating (1003); the compression modulus of the first silica gel coating (1003) is 0.01-0.1 MPa; and the bonding strength between the first silica gel coating (1003) and the inner shell (1001) is not less than 0.005 MPa.

Description

Shell and earphone

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic devices, in particular to a shell and an earphone.

BACKGROUND

[0002] The earphone can be worn by a user to listen to sound. When the user contacts the earphone, the user will contact the shell of the earphone, and the comfort of the user when wearing the earphone will be poor when the shell is hard.

[0003]

SUMMARY

[0004] The present application provides a shell, which comprises an inner shell and a silica gel coating layer arranged on at least part of the outer surface of the inner shell, the silica gel coating layer comprises a first silica gel coating layer and a second silica gel coating layer arranged in sequence on the outer surface of the inner shell, the first silica gel coating layer is fixedly bonded to the outer surface of the inner shell, the second silica gel coating layer is wrapped on the side of the first silica gel coating layer away from the inner shell, and the hardness of the second silica gel coating layer is greater than the hardness of the first silica gel coating layer, the compression modulus of the first silica gel coating layer is 0.01-0.1 MPa, and the bonding strength between the first silica gel coating layer and the inner shell is not less than 0.005 MPa.

[0005] The present application provides an earphone, which comprises an ear hook and the above-mentioned shell, the shell has a connecting end connected with the ear hook and a free end not connected with the ear hook, and the silica gel coating layer is arranged corresponding to at least part of the free end.

BRIEF DESCRIPTION OF DRAWINGS

[0006] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0007] Fig. 1 is a structural schematic diagram of the shell in some embodiments of the present application;

[0008] Fig. 2 is a structural schematic diagram of part M on the shell in some embodiments of Fig. 1;

[0009] Fig. 3 is a schematic diagram of the internal structure of the first silica gel coating layer in some embodiments of the embodiment shown in Fig. 1;

[0010] Fig. 4 is a schematic diagram of the internal structure of the first silica gel coating layer in some embodiments of the embodiment shown in Fig. 1;

[0011] Fig. 5 is a schematic diagram of the front profile of the ear of a user or a simulator in some embodiments;

[0012] Fig. 6 is a structural schematic diagram of an earphone in some embodiments of the present application;

[0013] Fig. 7 is a schematic diagram of the earphone shown in Fig. 6 in a wearing state in some embodiments;

[0014] Fig. 8 is a structural schematic diagram of the earphone shown in Fig. 6 in another perspective view in some embodiments;

[0015] Fig. 9 is a structural schematic diagram of the earphone shown in Fig. 6 in yet another perspective view in some embodiments;

[0016] Fig. 10 is a sectional view of the earphone shown in Fig. 6 along line VI-VI;

[0017] Fig. 11 is a sectional view of the earphone shown in Fig. 6 along line XI-XI.

DETAILED DESCRIPTION

[0018] The present application will be further described below in conjunction with the accompanying drawings and embodiments. It is particularly pointed out that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only part of the embodiments of the present application, and all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0019] Reference to "embodiments" in this application means that the specific features, structures or characteristics described in conjunction with the embodiments can be included in at least one embodiment of the present application. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments.

[0020] Next, a shell is described, which can serve as an external shell of an electronic device or other product, at least to protect the internal structure of the electronic device or other product, and of course can create a comfortable touch for the user through at least a partially soft outer layer, and can improve the wearing comfort of the user when the user wears the electronic device or other product.

[0021] The shell can carry various electronic components to form an electronic device. As used herein, "electronic device" (which can also be referred to as "terminal" or "mobile terminal" or "electronic apparatus") includes, but is not limited to, cellular phones, audio players, medical devices, and AR (Augmented Reality) / VR (Virtual Reality) devices, etc.

[0022] The electronic device in the present application is described by taking an earphone as an example, but this does not affect the replacement of the earphone with other electronic devices or products and the use of the shell embodiments.

[0023] Referring to FIG. 1, FIG. 1 is a structural schematic diagram of a shell in some embodiments of the present application. The shell 100 can include an inner shell 1001 and a silica gel coating 1002. The inner shell 1001 can serve as a main carrier for mounting electronic components or other structures in electronic devices or other products. The silica gel coating 1002 can be arranged on at least part of the outer surface of the inner shell 1001 to form an outer surface layer of the shell 100, and a comfortable touch feeling can be created for users through the softness of the silica gel coating 1002. When the user wears the shell 100, the wearing comfort of the user can be improved through the silica gel coating 1002.

[0024] In some embodiments, the silica gel coating 1002 can be arranged on the entire outer surface of the inner shell 1001, which can improve the overall touch comfort of the shell 100 and also give the user a different visual sense. In some embodiments, the silica gel coating 1002 can be arranged on part of the outer surface of the inner shell 1001, which can improve the appearance expressiveness of the shell 100 through the combination of different structures.

[0025] The silica gel coating 1002 can include a first silica gel coating 1003 and a second silica gel coating 1004 arranged in sequence on the outer surface of the inner shell 1001. The first silica gel coating 1003 is fixedly bonded to the outer surface of the inner shell 1001. The second silica gel coating 1004 is wrapped on the side of the first silica gel coating 1003 away from the inner shell 1001. The first silica gel coating 1003 serves as the main layer for making the shell 100 have softness, which is used to improve the wearing comfort of the shell 100. The second silica gel coating 1004 is at least used to protect the first silica gel coating 1003, and can also be used to protect the inner shell 1001. In some embodiments, the second silica gel coating 1004 can have poorer softness than the first silica gel coating 1003, so as to highlight the protection of the second silica gel coating 1004 to the first silica gel coating 1003.

[0026] The hardness of the first silica gel coating 1003 can be smaller than that of the inner shell 1001, and can also be smaller than that of the second silica gel coating 1004, so as to serve as the main layer for improving the wearing comfort of the shell 100. In some embodiments, the compression modulus of the first silica gel coating 1003 can be 0.01-0.1 MPa, which is used to characterize the softness of the first silica gel coating 1003. When the compression modulus of the first silica gel coating 1003 is lower than 0.01 MPa, the liquid silica gel raw material will be too soft to be processed into the silica gel coating 1002. When the compression modulus of the first silica gel coating 1003 is higher than 0.1 MPa, the softness of the silica gel coating 1002 will be reduced, and the wearing comfort of the user will also be reduced.

[0027] The compression modulus of 0.01-0.1 MPa can make the first silica gel coating 1003 softer, and under the same requirement of softness, the silica gel coating 1002 can be made thinner; further, under the same requirement of the size of the shell 100, the volume of the inner shell 1001 can be increased as much as possible; further, under the same requirement of the structure of the shell 100, the volume of the shell 100 can be reduced as much as possible.

[0028] In some embodiments, the compression modulus of the first silica gel coating 1003 can be 0.01-0.06 MPa, so that the softness of the first silica gel coating 1003 is better, and it also has the effect of shock absorption. When the electronic device or other product falls, the first silica gel coating 1003 can play a role in shock absorption and protect the electronic device or other product. When the electronic device is an earphone, the earphone will contact the user through the first silica gel coating 1003, and the first silica gel coating 1003 can absorb the vibration of the earphone and relieve the user's tingling caused by the vibration of the earphone.

[0029] In some embodiments, the compression modulus of the first silica gel coating 1003 can be 0.01-0.06 MPa, so that the softness of the first silica gel coating 1003 is better, and it also has the effect of shock absorption. When the electronic device or other product falls, the first silica gel coating 1003 can play a role in shock absorption and protect the electronic device or other product. When the electronic device is an earphone, the earphone will contact the user through the first silica gel coating 1003, and the first silica gel coating 1003 can absorb the vibration of the earphone and relieve the user's tingling caused by the vibration of the earphone.

[0030] In some embodiments, the compression modulus of the first silica gel coating 1003 can be 0.02 MPa, 0.03 MPa, 0.04 MPa, 0.05 MPa, 0.06 MPa, 0.07 MPa, 0.08 MPa, or 0.09 MPa, etc.

[0031] The first silica gel coating 1003 can be fixed on the inner shell 1001 by bonding. The bonding strength between the first silica gel coating 1003 and the inner shell 1001 is not less than 0.005 MPa.

[0032] Due to the better softness of the first silica gel coating 1003, the first silica gel coating 1003 is prone to peeling off or falling off from the inner shell 1001 during use of the shell 100, and the connection stability between the first silica gel coating 1003 and the inner shell 1001 can be improved when the bonding strength is not less than 0.005 MPa.

[0033] In some embodiments, the bonding strength between the first silica gel coating 1003 and the inner shell 1001 is not less than 0.006 MPa, 0.008 MPa, 0.01 MPa, 0.016 MPa, 0.018 MPa, 0.02 MPa, 0.03 MPa, 0.04 MPa, 0.06 MPa, 0.1 MPa, 0.2 MPa, 0.4 MPa, 0.8 MPa, 1 MPa, 1.2 MPa, 1.4 MPa, or 3 MPa, etc.

[0034] In some embodiments, the control of the bonding strength between the first silica gel coating layer 1003 and the inner shell 1001 can be achieved by multiple brushing or backing of the adhesive, so as to ensure the bonding strength between the first silica gel coating layer 1003 and the inner shell 1001. Of course, the bonding strength can also be adjusted by selecting the adhesive. In addition, the adjustment of the bonding strength between the first silica gel coating layer 1003 and the inner shell 1001 can also be achieved by the technical solutions known to those skilled in the art.

[0035] The thickness of the second silica gel coating layer 1004 is less than that of the first silica gel coating layer 1003, so as to serve as the outer surface of the shell 100 and protect the first silica gel coating layer 1003. The limitation of the thickness of the second silica gel coating layer 1004 can reduce the influence on the softness of the first silica gel coating layer 1003, so that the outer surface layer of the shell 100 has softness, and in addition, the protection effect of the second silica gel coating layer 1004 on the first silica gel coating layer 1003 can be ensured. In some embodiments, the thickness of the second silica gel coating layer 1004 is less than that of the inner shell 1001.

[0036] The second silica gel coating layer 1004 can be disposed on the first silica gel coating layer 1003 by injection molding, or can be fixed on the first silica gel coating layer 1003 by bonding. In some embodiments, on the partial area of the inner shell 1001, the first silica gel coating layer 1003 between the second silica gel coating layer 1004 and the inner shell 1001 can be omitted, and the second silica gel coating layer 1004 is directly connected with the inner shell 1001. For example, the second silica gel coating layer 1004 can be disposed on the inner shell 1001 by injection molding, or can be fixed on the inner shell 1001 by bonding.

[0037] The hardness of the second silica gel coating layer 1004 is greater than that of the first silica gel coating layer 1003, so as to allow the first silica gel coating layer 1003 to be soft enough, and allow the thickness of the second silica gel coating layer 1004 to be thinner. In some embodiments, the hardness of the second silica gel coating layer 1004 is less than that of the inner shell 1001.

[0038] Referring to FIG. 1, the softness of the silica gel coating layer 1002 is mainly given by the first silica gel coating layer 1003, and then in cooperation with the first silica gel coating layer 1003 and the second silica gel coating layer 1004, the silica gel coating layer 1002 can be thinner, and the overall thickness or partial area thickness of the silica gel coating layer 1002 can be between 0.5-2.5mm. In some embodiments, the overall thickness or partial area thickness of the silica gel coating layer 1002 can be between 0.6mm, 0.7mm, 0.9mm, 1.1mm, 1.3mm, 1.5mm, 1.8mm, 1.9mm, 2mm or 2.3mm, etc.

[0039] Referring to FIG. 1, the manufacturing process of the first silica gel coating 1003 can generally include the following steps:

[0040] 1. Raw material preparation and mixing: Silicone rubber is used as the main raw material, and vulcanizing agents, color paste (selected according to requirements), and other additives (such as catalysts, cross-linking agents, fillers, etc.) are added for raw material mixing. This process can be carried out in a rubber mixer, where mechanical stirring ensures uniform distribution of the components.

[0041] 2. Mixing and plasticizing: The mixed raw materials are placed in an open mill for mixing, where two large rollers squeeze the material into a uniform cake shape. This process helps improve the plasticity and uniformity of the material. Multiple mixing and material addition cycles may be required to achieve the desired thickness and uniformity.

[0042] 3. Color paste addition (optional step based on requirements): During the mixing process, the color paste is cut into small pieces and added to the silicone rubber. Continued mixing ensures uniform color distribution.

[0043] 4. Extrusion or hot pressing: Silicone rubber can be formed by extrusion or hot pressing. Extrusion involves passing the mixed silicone rubber through an extruder, which shapes it into a specific form under high temperature and pressure. Hot pressing involves placing the silicone rubber into a pre-set mold and setting it under high temperature and pressure.

[0044] 5. Vulcanization: Regardless of the forming method, the formed silicone rubber needs to undergo a vulcanization process, which is a chemical cross-linking process aimed at enhancing the stability and physical properties of the material. Vulcanization can be carried out in an oven, where time and temperature are controlled to ensure complete curing of the material.

[0045] 6. Finishing and processing: The vulcanized silicone product may need to be cut, polished, or subjected to other surface treatments to achieve the desired size and appearance of the final product.

[0046] During the above preparation process, the effective method for adjusting the hardness of the first silica gel coating 1003 is:

[0047] 1. Adjusting the raw materials, mainly by adding different proportions of fillers, pigments, and additives to the raw materials.

[0048] 2. Processing technology, by controlling factors such as temperature, pressure, and time during the processing, adjusting the hardness of the silicone product, and also using processing technologies such as segmented vulcanization, pressure vulcanization, etc., to adjust the hardness of the silicone product.

[0049] 3. Post-processing technology, by using post-processing technologies such as surface treatment, heat treatment, etc., to adjust the hardness of the silicone product.

[0050] 4. Change the silane-based chain length distribution, use different platinum catalyst concentrations, adjust the hardness of the silica gel.

[0051] It can be understood that the manufacturing process and hardness adjustment of the first silica gel coating 1003 can refer to the above-mentioned embodiments, of course, other technical solutions known to those skilled in the art can also be used, and are not limited to the embodiments listed herein. In addition, the manufacturing process and hardness adjustment of the second silica gel coating 1004 can also refer to the manufacturing process and hardness adjustment of the first silica gel coating 1003, which will not be repeated.

[0052] Please refer to FIG. 1 and FIG. 2, FIG. 2 is a structural schematic diagram of part M on the shell 100 in some embodiments. In order to measure the compression modulus of the first silica gel coating 1003, part M of MxN standard area can be obtained from the shell 100, and then part M is detected. The standard area can be one of 1x1mm2, 2x2mm2, 3x3mm2, 4x3mm2, 3x3mm2, 4x4mm2, 5x2mm2, 5x5mm2, 1x1cm2, 2x2cm2, 1x3cm2, 3x3cm2, 3x3cm2, 2x4cm2, 4x4cm2or 5x5cm2, etc. Of course, the standard area can also be selected as other areas according to the needs.

[0053] At room temperature, the experimental instrument with an extrusion head and capable of continuously applying a gradually changing load to the extrusion head is used to extrude part M, and the size and area of the extrusion plane of the extrusion head of the experimental instrument are greater than those of part M of the standard area. During the extrusion of part M by the extrusion head, a gradually changing load is applied to the extrusion head, and the change amount of the overall thickness of part M and the change amount of the overall thickness of the first silica gel coating 1003 and the load are recorded in real time.

[0054] Taking the ratio of the load to the standard area as the pressure and taking the percentage of the ratio of the change amount of the overall thickness of the first silica gel coating 1003 to the initial thickness of the first silica gel coating 1003 as the strain, a stress-strain curve is drawn.

[0055] In the stress-strain curve, since part of the stress-strain curve is a straight line, the slope of the straight line part of the stress-strain curve can be taken as the compression modulus of the first silica gel coating 1003. In some embodiments, the strain corresponding to the straight line part of the stress-strain curve is 5%-10%. Further, the compression modulus of the first silica gel coating 1003 measured when the first silica gel coating 1003 is at a strain of 5%-10% is 0.01-0.1MPa.

[0056] In some embodiments, the softness of the first silica gel coating layer 1003 can cause the outer surface of the portion M to be compressed when subjected to a pressure of 0.5 MPa, and the silica gel coating layer 1002 can generate a compression amount of 0.4-2 mm. When the silica gel coating layer 1002 contacts an irregular contact surface, the compression amount of 0.4-2 mm can cause the silica gel coating layer 1002 to better fit the contact surface, increase the contact area, and improve the wearing comfort of the user. In some embodiments, the outer surface of the entire housing 100 or the portion of the housing 100 is compressed when subjected to a pressure of 0.5 MPa, and the silica gel coating layer 1002 can generate a compression amount of 0.4-2 mm.

[0057] Referring to FIGS. 1 and 2, to measure the bonding strength between the first silica gel coating layer 1003 and the inner housing 1001, a standard area portion M can be obtained from the housing 100. At room temperature, the portion M is subjected to a peeling test. The peeling test can use a universal testing machine, an electronic peeling strength tester, a tensile tester, or a material testing machine equipped with a peeling clamp. The inner housing 1001 of the portion M is stably fixed, and one edge (e.g., edge M1 in FIG. 2) of the silica gel coating layer 1002 in the portion M is clamped by the peeling clamp, and the first silica gel coating layer 1003 and the second silica gel coating layer 1004 are clamped. Then, a 90-degree peeling test is performed, and the tension is gradually increased at a constant speed until the silica gel coating layer 1002 starts to peel off from the inner housing 1001 (e.g., the silica gel coating layer 1002 peels off from the inner housing 1001 in the direction of the arrow in FIG. 2). The maximum tension value during peeling is recorded, and the ratio of the maximum tension value to the standard area is taken as the bonding strength between the first silica gel coating layer 1003 and the inner housing 1001. In addition, when measuring the bonding strength between the first silica gel coating layer 1003 and the inner housing 1001, the silica gel coating layer 1002 can also be divided into a standard area on the housing 100 without cutting the inner housing 1001 from the housing 100, and then the peeling test of the silica gel coating layer 1002 of the standard area is performed according to the above peeling test process. The divided silica gel coating layer 1002 is peeled from the housing 100, and then the bonding strength between the first silica gel coating layer 1003 and the inner housing 1001 is obtained.

[0058] Referring to FIG. 3, FIG. 3 is a schematic diagram of the internal structure of the first silica gel coating layer 1003 in some embodiments of the embodiment shown in FIG. 1. The internal structure of the first silica gel coating layer 1003 can be a honeycomb structure, which can improve the softness of the first silica gel coating layer 1003 through the internal structure. Furthermore, based on the first silica gel coating layer 1003 improving the softness of the first silica gel coating layer 1003 through the internal structure, the difficulty of achieving the softness of the first silica gel coating layer 1003 from the manufacturing process and hardness control of the first silica gel coating layer 1003 can be reduced.

[0059] Referring to FIG. 4, FIG. 4 is a schematic diagram of an internal structure of the first silica coating 1003 in some embodiments of the implementation shown in FIG. 1. The first silica coating 1003 can have a columnar array structure in its interior, which can improve the softness of the first silica coating 1003 through the internal structure. Furthermore, based on the first silica coating 1003 improving the softness of the first silica coating 1003 through the internal structure, the difficulty of achieving the softness of the first silica coating 1003 from the manufacturing process and hardness regulation of the first silica coating 1003 can be reduced.

[0060] Referring to FIG. 1, to improve and / or adjust the bonding strength between the first silica coating 1003 and the inner shell 1001, the roughness of the outer surface of the inner shell 1001 can be considered. For example, the roughness of the bonding area of the outer surface of the inner shell 1001 for the first silica coating 1003 to bond and fix can be improved. In some embodiments, the roughness of the bonding area is between 10-200 microns. In some embodiments, the roughness of the bonding area is greater than the roughness of at least part of other areas of the outer surface of the inner shell 1001.

[0061] Referring to FIG. 5, FIG. 5 is a schematic diagram of the front profile of the ear of a user or a simulator in some embodiments. The ear 200 can include physiological parts such as the external auditory canal 201, the concha cavity 202, the cymba concha 203, the triangular fossa 204, the antihelix 205, the scapha 206, the helix 207, and the antitragus 208.

[0062] The external auditory canal 201 has a certain depth and can extend to the tympanic membrane. For ease of description, the external auditory canal 201 can specifically refer to the earhole of the ear 200 without special instructions. In addition, the concha cavity 202, the cymba concha 203, the triangular fossa 204, and other physiological parts can also have a certain volume and depth. The concha cavity 202 can be directly communicated with the external auditory canal 201, that is, the earhole can be simply regarded as located at the bottom of the concha cavity 202.

[0063] It can be understood that, for users, there can be individual differences between different users, which in turn leads to different shapes, sizes, and other dimensional differences of the ear 200. In order to facilitate description and reduce (or even eliminate) individual differences of different users, a simulator containing a head and its ear (generally left ear and right ear, and here one of the ears is taken as an example) 100 can be made based on the ANS: S3.36, S3.25 and IEC: 60318-7 standards, such as GRAS 45BC KEMAR, HEAD Acoustics, B&K 4128 series or B&K 5128 series, to present the scenario of most users wearing earphones through the simulator. Taking GRAS KEMAR as an example, the simulator of the ear 200 can be any one of GRAS 45AC, GRAS 45BC, GRAS 45CC or GRAS 43AG, etc. Taking HEAD Acoustics as an example, the simulator of the ear 200 can be any one of HMS II.3, HMS II.3LN or HMS II.3LN HEC, etc.

[0064] It should be noted that in the fields of medicine, anatomy, etc., the sagittal plane, coronal plane and horizontal plane of the human body or human body simulator can be defined as three basic sections, and the sagittal axis, coronal axis and vertical axis can be defined as three basic axes. Among them, the sagittal plane refers to a section perpendicular to the ground made along the front-to-back direction of the body, which divides the human body or human body simulator into left and right parts; the coronal plane refers to a section perpendicular to the ground made along the left-to-right direction of the body, which divides the human body or human body simulator into front and back parts; the horizontal plane refers to a section parallel to the ground made along the up-to-down direction of the body, which divides the human body or human body simulator into upper and lower parts. Correspondingly, the sagittal axis refers to an axis perpendicular to the coronal plane along the front-to-back direction of the body, the coronal axis refers to an axis perpendicular to the sagittal plane along the left-to-right direction of the body, and the vertical axis refers to an axis perpendicular to the horizontal plane along the up-to-down direction of the body. Further, the "front side of the ear 200" is a concept relative to the "rear side of the ear 200", the former refers to the side of the ear 200 away from the head, and the latter refers to the side of the ear 200 towards the head, both of which are for the ear 200 of the user or the simulator. Among them, the ear 200 of the human body or human body simulator is observed along the direction of the coronal axis, as shown in FIG. 5.

[0065] Please refer to FIG. 6, FIG. 7, FIG. 8 and FIG. 9. FIG. 6 is a structural schematic diagram of an earphone in some embodiments of the present application. FIG. 7 is a schematic diagram of the earphone shown in FIG. 6 in a wearing state in some embodiments. FIG. 8 is a structural schematic diagram of the earphone shown in FIG. 6 in another perspective in some embodiments. FIG. 9 is a structural schematic diagram of the earphone shown in FIG. 6 in still another perspective in some embodiments. The earphone 300 can include a core module 10 and an ear hook 20 connected to the core module 10. The core module 10 is located at the front side of the ear 200 in the wearing state. At least part of the ear hook 20 is located at the rear side of the ear 200 in the wearing state, so that the earphone 300 is hung on the ear 200 in the wearing state.

[0066] In the present application, when describing the process or action of wearing the earphone 300, such as "wearing the earphone 300", "the earphone 300 is in the wearing state" and "in the wearing state", it can mean that the earphone 300 is worn on the ear 200. Of course, because different users have individual differences, when the earphone 300 is worn by different users, there can be some differences from the earphone 300 worn on the ear 200 of the simulator, but such differences should be tolerated.

[0067] The core module 10 can have a connection end CE connected to the ear hook 20 and a free end FE not connected to the ear hook 20. The core module 10 or the auxiliary structure connected thereto is arranged to at least partially extend into physiological sites such as the concha cavity 202, the cymba concha 203, the triangular fossa 204 and the scaphal 206. At least part of the ear hook 20 is arranged as a profiled structure to fit at least one of the rear side of the ear 200 and the head, so as to increase the contact area of the ear hook 20 with the ear 200 and / or the head.

[0068] Please refer to FIG. 7. In the wearing state, the free end FE of the core module 10 can extend into the concha cavity 202. The free end FE can be pressed in the concha cavity 202 in the thickness direction X. Of course, the free end FE can also abut in the concha cavity 202 in the length direction Y and the width direction Z.

[0069] Please refer to FIG. 7 and FIG. 8. The core module 10 can have an inner side IS facing the ear 200 and an outer side OS facing away from the ear 200 in the thickness direction X in the wearing state, and a connecting surface connecting the inner side IS and the outer side OS. The thickness direction X can be defined as the direction of the core module 10 approaching or moving away from the ear 200 in the wearing state.

[0070] It should be noted that, in the wearing state, and viewed along the direction in which the coronal axis lies, the movement module 10 can be provided in the shape of a circle, an ellipse, a rounded square, a rounded rectangle, or the like. Among them, when the movement module 10 is provided in the shape of a circle, an ellipse, or the like, the connecting surface can refer to the arc-shaped side surface of the movement module 10. When the movement module 10 is provided in the shape of a rounded square, a rounded rectangle, or the like, the connecting surface can include the lower side surface LS, the upper side surface US, and the rear side surface RS in FIG. 6. The movement module 10 can have a length direction Y and a width direction Z perpendicular to the thickness direction X and orthogonal to each other. Among them, the length direction Y can be defined as the direction in which the movement module 10 is close to or away from the back of the head in the wearing state, and the width direction Z can be defined as the direction in which the movement module 10 is close to or away from the top of the head in the wearing state. Therefore, in order to facilitate description, the present embodiment will be exemplarily described by taking the movement module 10 provided in the shape of a rounded rectangle as an example. In some embodiments, the length of the movement module 10 in the length direction Y can be greater than the width of the movement module 10 in the width direction Z.

[0071] Referring to FIG. 10, FIG. 10 is a sectional view of the earphone 300 along line VI-VI in FIG. 6. The movement module 10 can include a movement shell 11 connected with the ear hook 20, and a loudspeaker 12 arranged in the movement shell 11. The movement shell 11 can adopt the shell 100 in the above-described embodiments. The loudspeaker 12 is a structure for realizing the main function of the earphone 300.

[0072] In some embodiments, the silica gel coating layer 1002 is provided at least partially corresponding to the free end. In FIG. 10, the first silica gel coating layer 1003 can be at least partially sandwiched between the inner shell 1001 and the second silica gel coating layer 1004. The first silica gel coating layer 1003 can be provided as much as possible in the region corresponding to the free end FE. In some embodiments, the first silica gel coating layer 1003 can be formed on a predetermined region of the inner shell 1001. In some embodiments, the first silica gel coating layer 1003 can at least partially cover the region of the inner shell 1001 corresponding to the free end FE, so that the movement module 10 is at least partially abutted against the concha cavity 202 through the first silica gel coating layer 1003. In other words, the part of the inner shell 1001 extending into and contacting the concha cavity 202 can be covered by the first silica gel coating layer 1003, which is conducive to improving the comfort of the earphone 300 in the wearing state.

[0073] In some embodiments, the first silica gel coating layer 1003 can continuously cover at least part of the regions of the inner shell 1001 corresponding to the rear side surface RS, the upper side surface US, and the lower side surface LS.

[0074] The second silica gel coating layer 1004 can be formed on a predetermined region of the inner shell 1001 and / or the first silica gel coating layer 1003.

[0075] In some embodiments, under the control of the thickness of the first silica coating layer 1003, the silica coating layer 1002 at the free end FE can be caused to have a compression amount of 0.4-2 mm when subjected to a pressure of 0.5 MPa. When the free end FE of the core module 10 extends into the concha cavity 202, the silica coating layer 1002 can be in contact with the irregular surface of the concha cavity 202, and the compression amount of 0.4-2 mm can make the silica coating layer 1002 better fit the irregular surface of the concha cavity 202, increase the contact area, and improve the wearing comfort of the user.

[0076] In some embodiments, under the control of the thickness of the first silica coating layer 1003, the outer surface of the silica coating layer 1002 farthest from the connecting end CE can be caused to have a compression amount of 0.4-2 mm when subjected to a pressure of 0.5 MPa along the direction of the interval between the free end FE and the connecting end CE.

[0077] Referring to FIG. 11, FIG. 11 is a cross-sectional view of the ear hook 20 at line XI-XI in FIG. 6. The ear hook 20 can include a wearing shell 21. The wearing shell 21 can adopt the shell 100 in the above-described embodiments to improve the wearing comfort.

[0078] In several embodiments provided in the present application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device embodiments described above are only illustrative, and for example, the division of the modules or units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0079] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the present embodiment.

[0080] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0081] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A housing, wherein, The shell comprises an inner shell and a silica gel coating layer arranged on at least part of the outer surface of the inner shell, the silica gel coating layer comprises a first silica gel coating layer and a second silica gel coating layer arranged in sequence on the outer surface of the inner shell, the first silica gel coating layer is fixedly bonded to the outer surface of the inner shell, the second silica gel coating layer is wrapped on the side of the first silica gel coating layer away from the inner shell, and the hardness of the second silica gel coating layer is greater than that of the first silica gel coating layer, the compression modulus of the first silica gel coating layer is 0.01-0.1MPa, and the bonding strength between the first silica gel coating layer and the inner shell is not less than 0.005MPa.

2. The housing of claim 1, wherein, The compression modulus of the first silica gel coating layer is not greater than 0.04MPa, or not greater than 0.06MPa.

3. The case according to claim 1, wherein, The first silica gel coating layer has a honeycomb structure or a columnar array structure inside.

4. The case according to claim 1, wherein, The thickness of the first silica gel coating layer is greater than that of the second silica gel coating layer.

5. The case of claim 1, wherein, The overall thickness of the silica gel coating layer in the at least partial region is 0.5-2.5mm.

6. The housing according to any one of claims 1-5, wherein, The thickness of the first silica gel coating layer is arranged so that at least part of the outer surface of the silica gel coating layer generates a compression amount of 0.4-2mm under the action of a pressure with a pressure intensity of 0.5MPa.

7. The housing according to any one of claims 1-5, wherein, The compression modulus of the first silica gel coating layer is the compression modulus measured at a strain amount of 5%-10%.

8. The case of claim 1, wherein, The roughness of the bonding area of the outer surface of the inner shell for fixedly bonding the first silica gel coating layer is greater than that of at least part of other areas of the outer surface of the inner shell.

9. The case of claim 8, wherein, The roughness of the bonding area is 10-200 microns.

10. A headset, wherein, The earphone comprises an ear hook and the shell of any one of claims 1-9, the shell has a connecting end connected with the ear hook and a free end not connected with the ear hook, and the silica gel coating layer is arranged corresponding to at least part of the free end.

11. The earphone of claim 10, wherein, The shell is located on the front side of the ear in the wearing state, the free end extends into the concha cavity, and the thickness of the first silica gel coating layer is arranged so that the outer surface of the silica gel coating layer at the farthest position from the connecting end of the free end generates a compression amount of 0.4-2mm under the action of a pressure with a pressure intensity of 0.5MPa arranged along the interval direction between the free end and the connecting end.

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