Earphone shell assembly and earphone

Abstract

The application provides an earphone shell assembly and an earphone. The earphone shell assembly comprises a first shell and a second shell. The first shell has a first interfacing surface, and the second shell has a second interfacing surface. Part of the first shell is recessed from the first interfacing surface along a first direction to form a step. Part of the second shell is protruded from the second interfacing surface along the first direction to form a protrusion. The protrusion is inserted into the step. The surface of the step along the first direction is recessed to form a glue storage groove. The earphone shell assembly provided by the application can be used for storing adhesive, can increase the amount of adhesive on the surface of the step along the first direction, is beneficial to improving the sealing effect after assembly, is beneficial to the forming of the step and the protrusion, reduces the wall thickness of the first shell and the second shell at the sealing position, and is further beneficial to reducing the size of the entire earphone.

Description

Technical Field

[0001] This application relates to the field of headphone technology, and more particularly to a headphone shell assembly and a headphone. Background Technology

[0002] In related technologies, headphone shell assemblies are usually assembled by adhesive bonding, but adhesive is easily lost during bonding, which reduces the sealing and protective effect of the headphone shell assembly. Utility Model Content

[0003] One aspect of this application provides an earphone shell assembly, the earphone shell assembly including a first shell and a second shell, the first shell having a first mating surface, the second shell having a second mating surface, a portion of the first shell being recessed from the first mating surface along a first direction to form a step, and a portion of the second shell being protruding from the second mating surface along the first direction to form a protrusion, the protrusion being inserted into the step; The surface portion of the step along the first direction is recessed to form a glue storage tank.

[0004] Another aspect of this application provides an earphone, including a battery unit, a connection unit, and a sound-generating unit. The battery unit is connected to the sound-generating unit through the connection unit, and the battery unit and / or the sound-generating unit include the earphone shell assembly described in any of the above claims.

[0005] The earphone shell assembly provided in this application embodiment has two advantages. First, by forming a glue reservoir by recessing the surface portion of the step along the first direction, the glue reservoir can be used to store adhesive. In this way, when the first shell and the second shell are assembled along the first direction, the amount of adhesive at least on the surface of the step along the first direction can be increased, which is beneficial to improving the sealing effect after assembly. Second, the sealing structure of the first shell and the second shell is still a single concave stop structure. This not only facilitates the forming of the step and the protrusion and reduces the difficulty of manufacturing, but also helps to reduce the wall thickness of the first shell and the second shell at the sealing point, thereby reducing the size of the entire earphone and improving the overall compactness of the earphone. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of the earphone provided in an embodiment of this application; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 for Figure 2 Sectional view at point AA; Figure 4 for Figure 2 Sectional view at point BB; Figure 5 for Figure 4 Enlarged view of point C in the middle; Figure 6 for Figure 4 Enlarged diagram of point D in the middle.

[0007] Explanation of reference numerals in the attached figures 10. Earphone shell assembly; 10a. Connecting structure; 11. First shell; 11a. First mating surface; 11b. Step; 11c. Tread surface; 11d. Kick surface; 11e. Glue reservoir; 11f. Slot; 111. Main body; 112. Stop; 12. Second shell; 12a. Second mating surface; 12b. Protrusion; 12c. Groove; 12d. Protrusion structure; 12e. Snap-fit ​​protrusion; 100. Earphone; 20. Battery unit; 30. Connecting unit; 40. Sound generating unit. Detailed Implementation

[0008] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0009] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0010] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0011] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0012] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0013] In related technologies, headphone shell assemblies are usually assembled by adhesive bonding, but adhesive is easily lost during bonding, which reduces the sealing and protective effect of the headphone shell assembly.

[0014] Based on the above, one aspect of this application provides an earphone shell assembly 10, please refer to... Figures 1 to 6 The earphone shell assembly 10 includes a first shell 11 and a second shell 12. The first shell 11 has a first mating surface 11a, and the second shell 12 has a second mating surface 12a. A portion of the first shell 11 is recessed from the first mating surface 11a along a first direction to form a step 11b, and a portion of the second shell 12 protrudes from the second mating surface 12a along the first direction to form a protrusion 12b. The protrusion 12b is inserted into the step 11b. A surface portion of the step 11b along the first direction is recessed to form a glue reservoir 11e.

[0015] It should be noted that the earphone shell assembly 10 includes a first shell 11 and a second shell 12. That is, by dividing the earphone shell assembly 10 into two shells, the first shell 11 and the second shell 12, the first shell 11 and the second shell 12 can be connected along the first direction, thereby realizing the assembly of the earphone shell assembly 10.

[0016] The first housing 11 has a first mating surface 11a, and the second housing 12 has a second mating surface 12a. The first mating surface 11a and the second mating surface 12a are in contact when the earphone housing assembly 10 is assembled. That is, in the assembled state, the first mating surface 11a and the second mating surface 12a can be considered to be approximately or completely fitted together.

[0017] A portion of the first housing 11 is recessed from the first mating surface 11a along the first direction to form a step 11b. Here, the step 11b formed by the first housing 11 can be understood as a single concave stop structure.

[0018] Typically, a step 11b is a stepped structure in a building used to connect different ground levels or floors. A step 11b is generally divided into a horizontal tread 11c and a vertical stair surface.

[0019] A portion of the second housing 12 protrudes from the second mating surface 12a along the first direction to form a protrusion 12b, which can be understood as a single-convex stop structure.

[0020] The protrusion 12b is inserted into the step 11b, that is, the protrusion 12b and the step 11b are inserted and engaged in the first direction.

[0021] The earphone shell assembly 10 provided in this application embodiment has, on the one hand, a glue storage groove 11e formed by recessing the surface portion of the step 11b along the first direction. The glue storage groove 11e can be used to store adhesive. In this way, when the first shell 11 and the second shell 12 are assembled along the first direction, the amount of adhesive at least on the surface of the step 11b along the first direction can be increased, which is beneficial to improving the sealing effect after assembly. On the other hand, the sealing structure of the first shell 11 and the second shell 12 is still a single concave stop structure. This not only facilitates the molding of the step 11b and the protrusion 12b and reduces the difficulty of manufacturing, but also helps to reduce the wall thickness of the first shell 11 and the second shell 12 at the sealing point, thereby reducing the size of the entire earphone 100 and improving the overall compactness of the earphone 100.

[0022] For example, compared to the double concave stop structure, the wall thickness of the first housing 11 and the second housing 12 at the sealing point can be further reduced by 0.5 mm.

[0023] For example, Figure 5 and Figure 6 R1 in the equation can be the first direction.

[0024] For example, the adhesive can be glue.

[0025] For example, the earphone shell assembly 10 of this application can achieve an IPX7 waterproof rating.

[0026] In some embodiments, please refer to Figure 5 and Figure 6 The protrusion 12b is recessed along its end face in the first direction away from the glue storage tank 11e to form a groove 12c. The groove 12c is disposed opposite to the glue storage tank 11e in the first direction.

[0027] The end face of the protrusion 12b along the first direction refers to the side end face of the protrusion 12b that is away from the second mating surface 12a along the first direction.

[0028] The groove 12c formed by the protrusion 12b is arranged opposite to the glue storage tank 11e along the first direction, which can increase the space above the glue storage tank 11e, which is conducive to storing more adhesive here, thereby improving the connection strength and sealing performance between the first housing 11 and the second housing 12.

[0029] In some embodiments, please refer to Figure 5 and Figure 6 The protrusion 12b protrudes from its end face in the first direction toward the direction close to the glue storage tank 11e to form a protrusion structure 12d, and the protrusion structure 12d is disposed opposite to the glue storage tank 11e in the first direction.

[0030] Here, by setting the protruding structure 12d formed on the protrusion 12b opposite to the adhesive reservoir 11e along the first direction, during the assembly process of the first housing 11 and the second housing 12 docking along the first direction, the protruding structure 12d can squeeze out the adhesive in the adhesive reservoir 11e along the first direction, which is beneficial to increase the bonding area of ​​the adhesive, improve the sealing performance and connection strength.

[0031] In some embodiments, please refer to Figure 5 and Figure 6 The dimension of the glue storage tank 11e in the first direction is between 0.05 mm and 0.1 mm.

[0032] For example, the dimensions of the glue storage tank 11e in the first direction may be 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm or 0.1mm, etc.

[0033] It should be noted that the dimension of the glue storage tank 11e in the first direction is the depth of the glue storage tank 11e.

[0034] Here, by setting a glue storage tank 11e of appropriate size, the influence of the glue storage tank 11e on the structural strength of the step 11b can be reduced, which is beneficial to reducing the size of the step 11b in the inner and outer directions of the earphone shell assembly 10.

[0035] In some embodiments, please refer to Figure 5 and Figure 6 The first housing 11 includes a main body 111 and a stop portion 112. The stop portion 112 is disposed on the surface of the main body 111 along a first direction and is located on the outer edge of the surface along the inward and outward directions of the earphone housing assembly 10, so as to define a step 11b with the main body 111 on the inner side. The stop portion 112 forms a first mating surface 11a on the wall surface away from the main body 111 along the first direction. The surface of the main body 111 where the stop portion 112 is disposed forms a glue reservoir 11e, wherein the first direction intersects with the inward and outward directions of the earphone housing assembly 10.

[0036] It should be noted that the inward and outward directions of the earphone shell assembly 10 can be the direction of the shell wall thickness at the mating point of the first shell 11 and the second shell 12. For example, Figure 5 and Figure 6 R2 in the text can refer to the inward or outward direction of the headphone shell assembly 10.

[0037] The stop portion 112 is disposed on the surface of the main body portion 111 along the first direction and is located on the outer edge of the surface along the inward and outward directions of the earphone shell assembly 10, so as to define a step 11b on the inner side with the main body portion 111. The stop portion 112 defines the kick surface 11d of the step 11b along the inner sidewall of the earphone shell assembly 10 in the inward and outward directions. The portion of the surface of the main body portion 111 along the first direction located at the outer edge is connected to the stop portion 112, and the portion located on the inner side defines the tread surface 11c of the step 11b.

[0038] The surface of the main body 111 where the stop portion 112 is provided forms a glue reservoir 11e. This means that the part of the main body 111 along the first direction located on the inner side along the inner and outer directions of the earphone shell assembly 10, i.e., the tread surface 11c of the step 11b, forms a glue reservoir 11e.

[0039] In this embodiment, the first shell 11 is specifically divided into a main body 111 and a stop portion 112. The stop portion 112 can be integrally formed with the main body 111, which is beneficial to improving the structural strength of the first shell 11 at the step 11b and also beneficial to manufacturing.

[0040] In some embodiments, please refer to Figure 5 and Figure 6 The size of the protrusion 12b along the first direction is between 0.7 mm and 1.9 mm.

[0041] For example, the size of the protrusion 12b along the first direction may be 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm or 1.9mm, etc.

[0042] In this embodiment, by limiting the size of the protrusion 12b along the first direction to between 0.7mm and 1.9mm, the mating size between the second housing 12 and the first housing 11 along the first direction, i.e. the size of the protrusion 12b, can be within a suitable range, thus improving the situation where the size of the earphone shell assembly 10 in the first direction is too large or the sealing performance between the first housing 11 and the second housing 12 is weak.

[0043] In some embodiments, please refer to Figure 5 and Figure 6 The dimension of the stop portion 112 in the first direction is between 0.8 mm and 2 mm.

[0044] For example, the size of the stop portion 112 in the first direction can be 0.8mm, 0.9mm, 1.0mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm or 2.0mm, etc.

[0045] Thus, the size of the protrusion 12b is smaller than that of the stop 112. When the protrusion 12b is inserted into the step 11b along the first direction, the first mating surface 11a and the second mating surface 12a can contact and fit tightly first. This can improve the situation where the protrusion 12b directly contacts or abuts against the surface of the step 11b along the first direction. This creates a certain gap between the protrusion 12b and the surface of the step 11b along the first direction, which is beneficial for storing adhesive and improving the bonding effect.

[0046] In some embodiments, please refer to Figure 5 and Figure 6 The protrusion 12b has a dimension between 0.45 mm and 0.7 mm along the inner and outer directions of the earphone shell assembly 10.

[0047] For example, the dimensions of the protrusion 12b along the inner and outer directions of the earphone shell assembly 10 can be 0.45mm, 0.48mm, 0.5mm, 0.52mm, 0.54mm, 0.55mm, 0.58mm, 0.6mm, 0.62mm, 0.64mm, 0.65mm, 0.68mm, or 0.7mm, etc.

[0048] In this embodiment, by limiting the size of the protrusion 12b in the inner and outer directions of the earphone shell assembly 10 to between 0.45mm and 0.7mm, it is beneficial to reduce the thickness space occupied by the protrusion 12b in the inner and outer directions, which is beneficial to reduce the overall size of the earphone 100. At the same time, it also enables the protrusion 12b to have a certain structural strength and achieve a sealed connection with the step 11b.

[0049] In some embodiments, please refer to Figure 5 and Figure 6 The dimension of the stop portion 112 along the inner and outer directions of the earphone shell assembly 10 is between 0.45mm and 0.8mm.

[0050] For example, the dimensions of the stop portion 112 along the inner and outer directions of the earphone shell assembly 10 can be 0.45mm, 0.48mm, 0.5mm, 0.52mm, 0.54mm, 0.55mm, 0.58mm, 0.6mm, 0.62mm, 0.64mm, 0.65mm, 0.68mm, 0.7mm, 0.72mm, 0.74mm, 0.75mm, 0.78mm, or 0.8mm, etc.

[0051] Here, by limiting the size of the stop portion 112 in the inner and outer directions of the earphone shell assembly 10 to between 0.45mm and 0.8mm, it is also beneficial to reduce the thickness space occupied by the stop portion 112 in the inner and outer directions, which is beneficial to reduce the overall size of the earphone 100. At the same time, it also enables the stop portion 112 to have a certain structural strength and achieve a sealed connection with the second shell 12.

[0052] In some embodiments, please refer to Figure 6 The step 11b and the protrusion 12b are engaged in the inner and outer directions of the earphone shell assembly 10.

[0053] Specifically, one of the kick surface 11d of the step 11b and the outer side wall of the protrusion 12b along the inward and outward directions may be provided with a groove 11f, and the other may be provided with a snap-fit ​​protrusion 12e, so as to achieve a snap-fit ​​engagement between the first housing 11 and the second housing 12 along the inward and outward directions of the headphone shell assembly 10.

[0054] In this embodiment, the step 11b and the protrusion 12b are engaged in the inner and outer directions of the earphone shell assembly 10, which can further improve the connection strength between the first shell 11 and the second shell 12, and also improve the sealing performance.

[0055] Another aspect of this application provides an earphone 100, please refer to... Figures 1 to 6 The earphone 100 includes a battery unit 20, a connection unit 30, and a sound-emitting unit 40. The battery unit 20 is connected to the sound-emitting unit 40 through the connection unit 30. The battery unit 20 and / or the sound-emitting unit 40 include the earphone shell assembly 10 provided in any embodiment of this application.

[0056] It should be noted that the battery unit 20 of the earphone 100 includes the earphone shell assembly 10 provided in any embodiment of the application, which means that the battery unit 20 is assembled from a first shell 11 and a second shell 12 to form a shell.

[0057] In this embodiment, the battery unit 20 of the earphone 100 may include the earphone shell assembly 10 described above, or the sound-generating unit 40 of the earphone 100 may include the earphone shell assembly 10 described above, or both the battery unit 20 and the sound-generating unit 40 of the earphone 100 may include the earphone shell assembly 10 described above.

[0058] By using the battery unit 20 and / or the sound-generating unit 40 of the aforementioned earphone shell assembly 10, the waterproof sealing performance of this part can be improved.

[0059] The two ends of the connecting unit 30 are used to connect the battery unit 20 and the sound-generating unit 40, respectively. For example, the earphone 100 is an ear-clip earphone 100, and the connecting unit 30 is a C-bridge, which can provide a certain clamping force and can also transmit the power of the battery unit 20 to the sound-generating unit 40.

[0060] The earphone 100 provided in this application, based on the advantages of the earphone shell assembly 10 mentioned above, has the characteristics of improving waterproof sealing performance while also reducing the overall size of the earphone 100.

[0061] In some embodiments, please refer to Figure 3 The first housing 11 or the second housing 12 has a connecting structure 10a, which is sealed to the connecting unit 30.

[0062] The first housing 11 or the second housing 12 has a connection structure 10a, that is, only one of the housings in the earphone housing assembly 10 has a connection structure 10a for connecting to the connection unit 30.

[0063] Thus, compared to the first housing 11 and the second housing 12 forming the connection structure 10a together, this embodiment can improve the sealing performance of the connection between the earphone housing assembly 10 and the connection unit 30, thereby improving the waterproof sealing performance of the entire earphone 100.

[0064] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An earphone shell assembly, characterized in that, The earphone shell assembly includes a first shell and a second shell. The first shell has a first mating surface, and the second shell has a second mating surface. A portion of the first shell is recessed from the first mating surface along a first direction to form a step, and a portion of the second shell protrudes from the second mating surface along the first direction to form a protrusion. The protrusion is inserted into the step. The surface portion of the step along the first direction is recessed to form a glue storage tank.

2. The earphone housing assembly of claim 1, wherein, The protrusion is recessed at its end face along the first direction away from the glue storage tank to form a groove, and the groove is disposed opposite to the glue storage tank along the first direction.

3. The earphone housing assembly of claim 1, wherein, The protrusion protrudes from its end face along the first direction toward the glue storage tank to form a protrusion structure, and the protrusion structure is disposed opposite to the glue storage tank along the first direction.

4. The earphone housing assembly of claim 1, wherein, The dimension of the glue storage tank in the first direction is between 0.05 mm and 0.1 mm.

5. The earphone housing assembly of claim 1, wherein, The first housing includes a main body and a stop portion. The stop portion is disposed on the surface of the main body along a first direction and is located on the outer edge of the surface along the inward and outward directions of the earphone shell assembly, so as to define the step with the main body on the inner side. The stop portion forms the first mating surface along the wall surface of the main body away from the main body along the first direction. The surface of the main body where the stop portion is disposed forms the glue reservoir. The first direction intersects with the inward and outward directions of the earphone shell assembly.

6. The earphone housing assembly of claim 5, wherein, The protrusion has a dimension between 0.7 mm and 1.9 mm along the first direction; and / or, The dimension of the stop portion in the first direction is between 0.8 mm and 2 mm.

7. The earphone housing assembly of claim 5, wherein, The protrusion has a dimension between 0.45 mm and 0.7 mm along the inward and outward directions of the earphone shell assembly; and / or, The dimension of the stop portion along the inner and outer directions of the earphone shell assembly is between 0.45 mm and 0.8 mm.

8. The earphone housing assembly of claim 5, wherein, The step and the protrusion engage with each other along the inner and outer directions of the headphone shell assembly.

9. An earphone, characterized by It includes a battery unit, a connection unit, and a sound-generating unit, wherein the battery unit is connected to the sound-generating unit through the connection unit, and the battery unit and / or the sound-generating unit include the earphone shell assembly according to any one of claims 1 to 8.

10. The earphone of claim 9, wherein, The first housing or the second housing has a connecting structure, which is sealed to the connecting unit.

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