Front cover structure, loudspeaker and electronic equipment

Abstract

The utility model discloses a front cover structure, a loudspeaker and electronic equipment, and belongs to the technical field of audio. The front cover structure is used for the loudspeaker, the loudspeaker comprises a first vibrating diaphragm, the front cover structure comprises a cover top part, a first enclosure part, an extension part, a sealing part and a second enclosure part, the first enclosure part is arranged around the circumferential direction of the cover top part, one side edge of the first enclosure part is connected with the edge of the cover top part, and the other side edge opposite to the first enclosure part is connected with the extension part; the sealing part is connected with the extension part, the sealing part is used for being connected with the first vibrating diaphragm, the extension part is connected with the second enclosure part, and the second enclosure part is used for being arranged in the circumferential direction of the first vibrating diaphragm. The waterproof requirement of the loudspeaker can be met, and the inner cores of the loudspeakers at different positions in the electronic equipment can be shared, so that the assembly process of the electronic equipment is simplified, and the manufacturing cost of the electronic equipment is reduced.

Description

Technical Field

[0001] The present application relates to the field of audio technology, and in particular to a front cover structure, a loudspeaker and an electronic device. Background Art

[0002] Portable electronic devices, such as laptops, tablets, and mobile phones, are becoming thinner and lighter with the development of technology. For example, as a core device of modern life, mobile phones integrate many complex hardware components to support a variety of functions. Among them, the speaker is one of the most important components in the mobile phone, responsible for providing audio output to meet the needs of phone calls, music playback, video viewing, and game experience. When the size of the speaker is large, it can achieve a larger vibration amplitude, thus having better low-frequency external performance. As the size of mobile phones continues to shrink, the speakers need to adapt to the limited space while providing clear and loud audio to achieve a better sound experience; there are two speakers in the mobile phone, one speaker is located at the top of the phone, and the other speaker is located at the bottom of the phone. There will be structural differences between the cores of the two speakers. If the front cover of the speaker at the top of the phone is assembled with the core of the speaker at the bottom of the phone, there will be some problems, such as poor waterproof effect or waterproof failure after assembly. Utility Model Content

[0003] The present application provides a front cover structure, a speaker and an electronic device to solve the technical problem in the related art that the waterproof requirement of the speaker cannot be met due to the structural difference between the cores of the two speakers.

[0004] The technical solution is as follows:

[0005] A first aspect of the present application provides a front cover structure for a speaker, the speaker comprising a first diaphragm, the front cover structure comprising a cover top, a first enclosure portion, an extension portion, a sealing portion and a second enclosure portion, the first enclosure portion being arranged circumferentially around the cover top, one side of the first enclosure portion being connected to an edge of the cover top, the other side opposite to the first enclosure portion being connected to the extension portion, the sealing portion being connected to the extension portion, the sealing portion being used to be connected to the first diaphragm, the extension portion being connected to the second enclosure portion, and the second enclosure portion being used to be arranged circumferentially of the first diaphragm.

[0006] By adopting the above scheme, the sealing part is used to realize the pressing of the first diaphragm, so as to ensure the tight combination between the sealing part and the first diaphragm, and between the first diaphragm and other components of the core; and the second enclosure part is arranged in the circumference of the first diaphragm, which is beneficial to ensure the stability of the connection between the first diaphragm and other components of the core, and is beneficial to increase the contact area between the front cover structure and the first diaphragm, so that the sealing area between the front cover structure and the first diaphragm is increased, and then the sealing performance between the front cover structure and the core is ensured to meet the waterproof requirements of the speaker, so that the cores of the speakers at different positions in the electronic device can also be shared, which is beneficial to simplify the assembly process of the electronic device and reduce the manufacturing cost of the electronic device.

[0007] In some implementations, the sealing portion is located between the extending portion and the first diaphragm in a thickness direction of the speaker;

[0008] The extending portion and the sealing portion are a separate structure, or the extending portion and the sealing portion are an integrated structure.

[0009] By adopting the above scheme, the sealing part is used to separate the extension part and the first diaphragm, which makes it convenient to increase the distance between the top of the cover and the first diaphragm to provide sufficient vibration space for the first diaphragm; the extension part and the sealing part are arranged as one body, which is conducive to ensuring the tightness of the connection between the extension part and the sealing part, so as to reduce the manufacturing cost and improve the production efficiency; the extension part and the sealing part are arranged separately, so that the extension part and the sealing part can use the same material or different materials to meet the sound and performance requirements, so that the design of the front cover structure has higher flexibility.

[0010] In some implementations, the second enclosure portion and the extension portion are an integral structure.

[0011] By adopting the above solution, it is helpful to ensure the tightness of the connection between the extension part and the second enclosure part, so as to reduce the manufacturing cost and improve the production efficiency, and it is convenient to improve the stability of the connection between the front cover structure and the core of the speaker.

[0012] In some implementations, the second enclosure portion and the extension portion are a split structure, wherein the front cover structure also includes an overlapping portion, the overlapping portion and the second enclosure portion are an integral structure, the second enclosure portion and the extension portion are connected via the overlapping portion, the extension portion has relative inner and outer side surfaces, the inner side surface faces the first diaphragm, and the outer side surface faces away from the first diaphragm, and the overlapping portion is connected to the outer side surface of the extension portion.

[0013] By adopting the above scheme, the second enclosure part and the extension part are split structures, and the same material or different materials can be used, so that the design of the front cover structure has high flexibility; the overlapping part is used to realize the indirect connection between the second enclosure part and the extension part, and because the overlapping part and the extension part can have a larger contact area, the stability of the connection between the second enclosure part and the extension part is guaranteed.

[0014] In some implementations, when the extension portion and the sealing portion are an integral structure, and the second enclosure portion and the extension portion are a separate structure, the overlap portion and the second enclosure portion are non-parallel, and a first internal angle is formed at the connection between the overlap portion and the second enclosure portion;

[0015] The sealing portion includes a first sub-plate and a second sub-plate connected to the first sub-plate, the first sub-plate and the second sub-plate are arranged non-parallel to each other, the connection between the first sub-plate and the second sub-plate forms a second internal angle, and the first internal angle and the second internal angle are combined to form a cavity structure; or, the sealing portion has a first external angle that is similar in shape to the first internal angle, and the first external angle extends into the first internal angle.

[0016] By adopting the above scheme, when the first inner corner and the second inner corner are combined to form a cavity structure, this is helpful to reduce the weight of the front cover structure; and the first outer corner extends into the first inner corner, which is helpful to increase the contact area between the second enclosure part and the extension part, thereby improving the stability of the connection between the two.

[0017] In some implementations, the sealing portion is ring-shaped and is used to connect with the edge of the first diaphragm.

[0018] By adopting the above scheme, the annular sealing portion can ensure more uniform support, thereby increasing the stability of the connection between the first diaphragm and the front cover structure, ensuring the stability of the first diaphragm during vibration, thereby improving the acoustic performance of the speaker, and ensuring the waterproof performance of the speaker; and the annular sealing portion is also easier to realize automated production, reducing the complexity and cost of the manufacturing process.

[0019] In some implementations, the sealing portion is made of a non-magnetic material.

[0020] By adopting the above solution, the sealing part of the non-magnetic material is not easily affected by the magnetic field, and the non-magnetic material will not affect the magnetic field around the first diaphragm, which can better maintain the vibration characteristics of the first diaphragm and help ensure the acoustic performance of the speaker.

[0021] In some implementations, the sealing portion is made of non-magnetic stainless steel or plastic.

[0022] By adopting the above solution, the non-magnetic stainless steel has stable chemical properties and structure, is not easily affected by environmental factors, and can ensure the long-term stable operation of the speaker. When the sealing part is made of plastic, the influence of the sealing part on the voice coil of the speaker can be reduced.

[0023] In some implementations, the non-magnetic stainless steel is 304 stainless steel or 316 stainless steel.

[0024] By adopting the above solution, since the stainless steel is 304 stainless steel and 316 stainless steel, both of which have excellent corrosion resistance and mechanical properties, it is beneficial to ensure the stability of the speaker structure strength.

[0025] A second aspect of the present application provides a speaker, which includes a core and a front cover structure in any of the above schemes, wherein the core includes a first diaphragm; the core is fixedly connected to the front cover structure.

[0026] By adopting the above scheme, the front cover structure is applied to the speaker to ensure the stability of the connection between the front cover structure and the core, thereby ensuring the waterproof performance, and also realizing the sharing of the core of the speakers at different positions in the electronic device, that is, the speakers at different positions use the same structure and the same size of core, which is beneficial to simplify the assembly process of the electronic device and reduce the manufacturing cost of the electronic device; and the sealing part is used to realize the pressing of the first diaphragm to ensure the tight combination between the sealing part and the first diaphragm, and between the first diaphragm and other parts of the core; and the second enclosure part is arranged on the circumference of the first diaphragm, which is beneficial to ensure the stability of the connection between the first diaphragm and other parts of the core, and is beneficial to increase the contact area between the front cover structure and the first diaphragm, so that the sealing area between the front cover structure and the first diaphragm is increased, thereby ensuring the sealing performance between the front cover structure and the core to meet the waterproof requirements of the speaker.

[0027] In some implementations, the core also includes a skeleton and a voice coil; the skeleton includes a support frame and a plurality of connecting plates, the plurality of connecting plates are distributed at intervals around the circumference of the support frame, the support frame is connected to the connecting plates, the connecting plates are fixedly connected to the surface of the first diaphragm, and the voice coil is fixedly connected to the support frame.

[0028] By adopting the above scheme, the connection area between the skeleton and the first diaphragm can be increased by utilizing the connecting plate of the skeleton, thereby ensuring the stability of the connection between the skeleton and the first diaphragm, thereby ensuring the stability of the connection between the voice coil and the first diaphragm, which is beneficial to ensuring the acoustic performance of the speaker; and the connecting plates are distributed at circumferential intervals on the supporting model, which can reduce the overall weight of the skeleton on the one hand, and help ensure the stability of the connection between the skeleton and the first diaphragm on the other hand, and reduce the possibility of debonding between the connecting plates and the first diaphragm.

[0029] In some implementations, the support frame is quadrilateral, and the four sides of the support frame are respectively connected to the connecting plates;

[0030] At least one connecting plate is provided with a first through hole, and / or the supporting frame is provided with a second through hole or an open groove.

[0031] By adopting the above solution, connecting plates are respectively provided on the four sides of the support frame to ensure the stability of the connection between the frame and the first diaphragm, and any one of the first through hole, the second through hole and the open groove is conducive to reducing the overall weight of the frame.

[0032] In some implementations, the first diaphragm includes a flange structure, a folding ring, and a dome; the flange structure is connected to the folding ring, and the dome is fixedly connected to the folding ring;

[0033] The inner core further comprises a bracket, the bracket and the front cover structure cooperate to define a vibration cavity, the bracket having a first surface and a second surface opposite to each other, the first surface facing the vibration cavity, and the second surface facing away from the vibration cavity;

[0034] The folding ring is fixedly connected to the bracket, the flange structure is located on the side where the second surface is located, the flange structure is arranged around the second surface, the side of the second enclosure part facing the flange structure is connected to the flange structure, and the sealing part is connected to the folding ring.

[0035] By adopting the above scheme, the flange structure is provided to help increase the connection area between the first diaphragm and the bracket to ensure the waterproof performance of the speaker, and the second enclosure part is connected to the flange structure to ensure the stability of the fixed connection between the front cover structure and the inner core, thereby ensuring the waterproof performance of the speaker.

[0036] A third aspect of the present application provides an electronic device, comprising: a housing and a first speaker; the first speaker is a speaker of any of the above solutions, or the first speaker comprises a front cover structure of any of the above solutions;

[0037] The first speaker is installed in the shell.

[0038] By adopting the above scheme, the front cover structure is applied to the loudspeaker to ensure the stability of the connection between the front cover structure and the inner core, thereby ensuring the waterproof performance; the sealing part is used to realize the pressing of the first diaphragm to ensure the close combination between the sealing part and the first diaphragm, and between the first diaphragm and other components of the inner core; and the second enclosure part is arranged in the circumference of the first diaphragm, which is beneficial to ensure the stability of the connection between the first diaphragm and other components of the inner core, and is beneficial to increase the contact area between the front cover structure and the first diaphragm, thereby increasing the sealing area between the front cover structure and the first diaphragm, thereby ensuring the sealing performance between the front cover structure and the inner core, so as to meet the waterproof requirements of the loudspeaker.

[0039] A fourth aspect of the present application provides an electronic device, comprising: a housing, a first speaker and a second speaker; the first speaker is the speaker in any of the above solutions;

[0040] The second speaker comprises the core of the speaker in any of the above solutions;

[0041] The first speaker and the second speaker are installed in the housing.

[0042] By adopting the above scheme, the front cover structure is applied to the speaker to ensure the stability of the connection between the front cover structure and the core, thereby ensuring the waterproof performance, and also realizing the sharing of the core of the speakers at different positions in the electronic device, that is, the speakers at different positions use the same structure and the same size of core, which is beneficial to simplify the assembly process of the electronic device and reduce the manufacturing cost of the electronic device; and the sealing part is used to realize the pressing of the first diaphragm to ensure the tight combination between the sealing part and the first diaphragm, and between the first diaphragm and other parts of the core; and the second enclosure part is arranged on the circumference of the first diaphragm, which is beneficial to ensure the stability of the connection between the first diaphragm and other parts of the core, and is beneficial to increase the contact area between the front cover structure and the first diaphragm, so that the sealing area between the front cover structure and the first diaphragm is increased, thereby ensuring the sealing performance between the front cover structure and the core to meet the waterproof requirements of the speaker.

[0043] In some implementations, the second speaker includes a shell having a shell cavity, in which the core is installed; the shell cavity of the shell has a fourth surface and a fifth surface, the fourth surface is in contact with the folding ring, and the fifth surface is in contact with the flip structure.

[0044] By adopting the above solution, the first diaphragm can be supported and abutted by the housing to ensure the stability of the acoustic performance of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0046] Figure 2 is a structural schematic diagram of an electronic device provided by an embodiment of the present application from another perspective;

[0047] Figure 3 is a schematic diagram of the structure of a speaker provided in an embodiment of the present application;

[0048] Figure 4 It is an exploded diagram provided by an embodiment of the present application;

[0049] Figure 5 is an assembly diagram of the front cover structure provided in an embodiment of the present application;

[0050] Figure 6 yes Figure 5 A top view of

[0051] Figure 7 is along Figure 6 Sectional view along the mid-DD line;

[0052] Figure 8 is a cross-sectional view of another front cover structure provided in an embodiment of the present application;

[0053] Fig. 9 is a cross-sectional view of another front cover structure provided in an embodiment of the present application;

[0054] Fig.10 A cross-sectional view of another front cover structure provided in an embodiment of the present application;

[0055] Fig.11 is a cross-sectional view of another front cover structure provided in an embodiment of the present application;

[0056] Fig.12 is a cross-sectional view of another front cover structure provided in an embodiment of the present application;

[0057] Fig.13 is an exploded diagram of the kernel provided in the embodiment of the present application;

[0058] Fig.14 is a cross-sectional view of a core provided by an embodiment of the present application;

[0059] Fig.15 is a schematic diagram of the structure in which the first diaphragm, the skeleton and the voice coil are assembled together in an embodiment of the present application;

[0060] Fig.16 yes Fig.15 Bottom view of

[0061] Fig.17 yes Figure 3 's elevation map;

[0062] Fig.18 is along Fig.17 Sectional view along line EE;

[0063] Fig.19 is a structural schematic diagram of another speaker provided in an embodiment of the present application;

[0064] Fig. 20 yes Fig.19 A top view of

[0065] Fig.21 is along Fig. 20 Cross-sectional view along line FF.

[0066] The meanings of the figures are as follows:

[0067] 100, speaker; 102, front cover structure; 104, cover top; 105, first enclosure; 106, extension; 107, sealing; 108, second enclosure; 109, acoustic mesh; 110, sound outlet hole; 111, edge profile; 112, third surface; 113, first inner corner; 114, first sub-board; 115, second sub-board; 116, second inner corner; 117, cavity structure; 118, first outer corner; 119, overlap;

[0068] 200, core; 201, first diaphragm; 202, bracket; 203, first surface; 204, second surface; 205, first magnet; 206, second magnet; 207, first washer; 208, first gap; 209, basin frame; 210, third through hole; 211, vibration cavity; 212, skeleton; 213, voice coil; 214, flexible circuit board; 215, fixing part; 216, vibration part; 217, flange structure; 218, folding ring; 219, dome; 220, support frame; 221, connecting plate; 222, first through hole; 223, shell; 224, sound outlet channel; 225, front cavity; 226, rear cavity; 227, fourth surface; 228, fifth surface; 229, first subshell; 230, second subshell; 231, damping net; 232, fixing plate;

[0069] 301, display screen; 302, housing; 303, device frame; 304, back cover; 305, sound outlet; 306, top; 307, bottom. DETAILED DESCRIPTION

[0070] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0071] It should be understood that the "multiple" mentioned in this application refers to two or more. In the description of this application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in order to facilitate the clear description of the technical solution of this application, the words "first" and "second" are used to distinguish between the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words "first" and "second" do not limit the quantity and execution order, and the words "first" and "second" do not limit them to be different.

[0072] In the related art, an electronic device includes two speakers, one speaker is located at the top of the electronic device, and the other speaker is located at the bottom of the electronic device; in order to distinguish the speaker located at the top of the electronic device and the speaker located at the bottom of the electronic device in the related art, the speaker located at the top of the electronic device is called an upper speaker, and the speaker located at the bottom of the electronic device is called a lower speaker. Due to the structural differences and size differences between the core of the upper speaker and the core of the lower speaker, the upper speaker and the lower speaker cannot share the same core, that is, the upper speaker and the lower speaker cannot use the same core with the same structure and size; if the front cover of the upper speaker is directly assembled with the core of the lower speaker, the problem of inability to assemble may occur, or the problem of poor waterproof effect or waterproof failure may occur after assembly; in addition, since the core cannot be shared, it is also easy to increase the manufacturing cost of the electronic device.

[0073] To this end, the embodiment of the present application provides an electronic device, a speaker 100 and a front cover structure 102 to solve the problems in the related art. The speaker 100 and the front cover structure 102 provided by the embodiment of the present application are described in detail below.

[0074] Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application, Figure 2 is a structural schematic diagram of an electronic device provided by an embodiment of the present application from another perspective, combined with Figure 1 and Figure 2 As shown, in one or more embodiments, the electronic device includes a display screen 301 and a housing 302; the housing 302 includes a device frame 303 and a back cover 304, and the display screen 301 and the back cover 304 are respectively located on opposite sides of the device frame 303 in the thickness direction, and form an inner cavity. The electronic device also includes a speaker 100, and the speaker 100 is located in the inner cavity of the electronic device. A sound outlet hole 305 is provided on the device frame 303, and / or a sound outlet gap is formed between the display screen 301 and the device frame 303, and the sound outlet hole 305 and the sound outlet gap are used to propagate the sound generated by the speaker 100, so as to propagate the sound to the outside of the electronic device.

[0075] Exemplarily, the electronic device may be a mobile phone, a tablet computer, a notebook or an e-reader; the mobile phone may be a foldable phone or a candy-bar phone.

[0076] In the embodiment of the present application, the electronic device is a candy-bar mobile phone as an example for specific description. For the convenience of description, as shown in the figure, the width direction of the electronic device can be defined as the BB direction, the length direction of the electronic device can be defined as the AA direction, and the thickness direction of the electronic device can be defined as the CC direction. The AA direction, the BB direction, and the CC direction are mutually perpendicular to each other to form a rectangular coordinate system.

[0077] See also Figure 1 As shown, the electronic device has a relative top end 306 and a bottom end 307, and the direction from the top end 306 to the bottom end 307 is parallel to the length direction of the electronic device; a sound hole 305 is arranged on the device frame 303 at the bottom end 307 of the electronic device, and the number of the sound holes 305 can be one or more, and can be specifically set according to needs.

[0078] See also Figure 2 As shown, the electronic device includes at least two speakers 100, a speaker 100 is arranged at the top 306 of the electronic device, and a speaker 100 is arranged at the bottom 307 of the electronic device, so that the electronic device has at least two speakers 100. It can be understood that the number of speakers 100 arranged at the top 306 of the electronic device and the number of speakers 100 arranged at the bottom 307 of the electronic device can be designed as needed, and this application does not make specific limitations.

[0079] Figure 3 is a schematic diagram of the structure of the speaker 100 provided in an embodiment of the present application, Figure 4 is an exploded diagram provided in an embodiment of the present application, wherein Figure 4 Mainly shows the exploded view of the front cover structure 102; Figure 3 and Figure 4 As shown, the loudspeaker 100 includes a core 200 and a front cover structure 102 , and the front cover structure 102 is fixedly connected to the core 200 ; the core 200 includes a first diaphragm 201 , and the sound of the loudspeaker 100 is achieved through the diaphragm of the first diaphragm 201 .

[0080] See also Figure 4As shown, the front cover structure 102 includes a cover top 104, a first enclosure 105, an extension 106, a sealing portion 107 and a second enclosure 108. The first enclosure 105 is arranged around the circumference of the cover top 104, one side of the first enclosure 105 is connected to the edge of the cover top 104, and the other side opposite to the first enclosure 105 is connected to the extension 106. The sealing portion 107 is connected to the extension 106. The sealing portion 107 is used to connect to the first diaphragm 201, and the extension 106 is connected to the second enclosure 108. The second enclosure 108 is used to be arranged on the circumference of the first diaphragm 201, so that the sealing portion 107 is used to realize the pressing of the first diaphragm 201 to ensure that the sealing portion 107 and the first diaphragm 201 are connected. The second enclosure portion 108 is arranged in the circumference of the first diaphragm 201, which is beneficial to ensuring the stability of the connection between the first diaphragm 201 and other components of the core 200, and is beneficial to increasing the contact area between the front cover structure 102 and the first diaphragm 201, thereby increasing the sealing area between the front cover structure 102 and the first diaphragm 201, and further ensuring the sealing performance between the front cover structure 102 and the core 200 to meet the waterproof requirement of the speaker 100, so that the core 200 of the speaker 100 at different positions in the electronic device can also be shared, which is beneficial to simplifying the assembly process of the electronic device and reducing the manufacturing cost of the electronic device.

[0081] See also Figure 4 As shown, the front cover structure 102 also includes an acoustic mesh 109, a sound outlet hole 110 is opened on the cover top 104, and the acoustic mesh 109 is fixed to the outer surface of the cover top 104, that is, fixed to the side of the cover top 104 facing away from the diaphragm, and the acoustic mesh 109 covers the sound outlet hole 110; the acoustic mesh 109 is used for acoustic filtering to adjust and improve the sound quality of the speaker 100; the acoustic mesh 109 can also prevent water and dust from entering the inside of the speaker 100 from the outside of the speaker 100 to ensure the stability of the acoustic performance of the speaker 100.

[0082] Figure 5 is an assembly diagram of the front cover structure 102 provided in an embodiment of the present application, Figure 6 yes Figure 5 A top view of Figure 5 and Figure 6As shown, the edge profile 111 of the front cover structure 102 is generally quadrilateral, which is conducive to fully utilizing the internal space of the electronic device. Exemplarily, the cover top 104 is a plate-like structure, the first enclosure 105 is annular, the extension 106 is annular, the sealing portion 107 is annular, and the second enclosure 108 is annular. The annular first enclosure 105 and the annular second enclosure 108 extend a certain distance in the thickness direction of the speaker 100, and the extension 106 extends a certain distance in the lateral direction of the speaker 100, and the lateral direction of the speaker 100 is perpendicular to the thickness direction of the speaker 100. The annular sealing portion 107 can ensure more uniform support, thereby increasing the stability of the connection between the first diaphragm 201 and the front cover structure 102, ensuring the stability of the first diaphragm 201 during vibration, thereby improving the acoustic performance of the speaker 100 and ensuring the waterproof performance of the speaker 100; and the annular sealing portion 107 is also easier to realize automated production, reducing the complexity and cost of the manufacturing process.

[0083] Those skilled in the art will appreciate that the annular shape describes that the corresponding structures form a closed figure, which may be a circular ring or a polygon, and the polygon may be a rectangle or a square. Of course, in some other possible embodiments, the edge contour 111 of the front cover structure 102 may also be circular to meet the design requirements of the electronic device.

[0084] Exemplarily, the thickness direction of the speaker 100 is parallel to the thickness direction of the electronic device, which can increase the area of ​​the first diaphragm 201; it should be noted that, of course, in some other possible implementations, the thickness direction of the speaker 100 may also be parallel to the length direction or width direction of the electronic device.

[0085] In the embodiment of the present application, the sealing portion 107 has a third surface 112 , and the third surface 112 is used to connect the first diaphragm 201 of the speaker 100 . Exemplarily, the third surface 112 is bonded and fixed to the surface of the first diaphragm 201 .

[0086] The thickness of the sealing portion 107 in the thickness direction of the speaker 100 is not greater than the distance that the second enclosure portion 108 extends in the thickness direction of the speaker 100, wherein the distance that the second enclosure portion 108 extends in the thickness direction of the speaker 100 can be referred to as the height of the second enclosure portion 108, which is conducive to fully covering the sealing portion 107 in the thickness direction of the speaker 100 by the second enclosure portion 108; and the portion of the second enclosure portion 108 that exceeds the third surface 112 of the sealing portion 107 can surround the first diaphragm 201 to improve the sealing performance between the front cover structure 102 and the core 200. Exemplarily, the ratio of the height of the second enclosure portion 108 to the thickness of the sealing portion 107 in the thickness direction of the speaker 100 can be 1.1 to 3, for example, it can be 1.1, 1.2, 1.5, 2, 2.3, 2.5 or 3, etc., and this application does not make specific limitations.

[0087] In some embodiments, the cover top 104, the first enclosure portion 105 and the extension portion 106 are an integrated structure. The integrated structure can be that the three use the same plate structure or block structure, and are formed by die-casting, stamping or CNC machine processing; or the cover top 104, the first enclosure portion 105 and the extension portion 106 are formed by powder metallurgy molding, extrusion molding or injection molding, and the cover top 104, the first enclosure portion 105 and the extension portion 106 are made of the same material.

[0088] It should be noted that in each embodiment of the present application, the integrated structure can be an integrated structure formed by die casting, stamping, CNC machine tool processing, powder metallurgy molding, extrusion molding or injection molding. Of course, the integrated structure can also be formed by other methods, such as an integrated structure formed by folding or hot pressing a plate-like structure, so it will not be repeated in the following text.

[0089] In some embodiments, the material of the cover top 104, the first enclosure portion 105 and the extension portion 106 can be a non-magnetic material, such as metal. The metal can be 304 stainless steel, 316 stainless steel, aluminum or copper. Of course, the non-magnetic material can also be plastic, such as ABS (Acrylonitrile Butadiene Styrene) plastic and PET (Polyethylene Terephthalate) plastic.

[0090] Figure 7 is along Figure 6 Cross-sectional view of line DD, see Figure 7As shown, in the thickness direction of the loudspeaker 100, the sealing portion 107 is located between the extension portion 106 and the first diaphragm 201; the extension portion 106 and the sealing portion 107 are a split structure; the sealing portion 107 is used to separate the extension portion 106 and the first diaphragm 201, which facilitates increasing the distance between the top 104 of the cover and the first diaphragm 201, so as to provide sufficient vibration space for the first diaphragm 201; the extension portion 106 and the sealing portion 107 are separately arranged, so that the extension portion 106 and the sealing portion 107 can use the same material or different materials to meet the sound and performance requirements, so that the design of the front cover structure 102 has higher flexibility; the first enclosure portion 105 is used to provide a gap between the top 104 of the cover and the first diaphragm 201 of the loudspeaker 100, so that the first diaphragm 201 has sufficient diaphragm space. Exemplarily, the extension portion 106 and the sealing portion 107 may be fixedly connected by bonding, welding or insert injection molding; in one embodiment, the extension portion 106 and the sealing portion 107 are fixed by bonding.

[0091] See also Figure 7 As shown, the second enclosure 108 and the extension 106 are an integrated structure, which is conducive to ensuring the stability of the connection between the extension 106 and the second enclosure 108, so as to reduce the manufacturing cost and improve the production efficiency, and facilitate the stability of the connection between the front cover structure 102 and the core 200 of the speaker 100. Exemplarily, the second enclosure 108 is directly connected to the extension 106, the other side of the first enclosure 105 is connected to one side of the extension 106, and the other side of the extension 106 is connected to one side of the second enclosure 108.

[0092] Figure 8 is a cross-sectional view of another front cover structure 102 provided in an embodiment of the present application; see Figure 8 As shown, the extension portion 106 and the sealing portion 107 are an integrated structure; this is conducive to ensuring the tightness of the connection between the extension portion 106 and the sealing portion 107, thereby reducing manufacturing costs and improving production efficiency.

[0093] See also Figure 8As shown, the second enclosure 108 and the extension 106 are separated structures, so that the same material or different materials can be used, so that the design of the front cover structure 102 has high flexibility. The front cover structure 102 also includes a lap joint 119, which is an integral structure with the second enclosure 108. The second enclosure 108 and the extension 106 are connected through the lap joint 119. The extension 106 has an inner side and an outer side opposite to each other, the inner side faces the first diaphragm 201, and the outer side faces away from the first diaphragm 201. The lap joint 119 is connected to the outer side of the extension 106; in this way, the lap joint 119 is used to realize the indirect connection between the second enclosure 108 and the extension 106, and because the lap joint 119 and the extension 106 can have a large contact area, the stability of the connection between the second enclosure 108 and the extension 106 is guaranteed. Exemplarily, the material of the second enclosure portion 108 is the same as that of the cover top 104; the overlapping portion 119 is fixedly connected to the outer side surface of the extension portion 106 by bonding or welding; the overlapping portion 119 is plate-shaped, so that the plate-shaped overlapping portion 119 can be in surface contact with the outer side surface, thereby increasing the contact area; the overlapping portion 119 and the second enclosure portion 108 are not arranged in parallel, for example, the second enclosure portion 108 is perpendicular to the plate-shaped overlapping portion 119.

[0094] See also Figure 8 As shown, a first inner corner 113 is formed at the connection between the overlap portion 119 and the second enclosure portion 108; the sealing portion 107 includes a first sub-plate 114 and a second sub-plate 115 connected to the first sub-plate 114, the first sub-plate 114 and the second sub-plate 115 are arranged non-parallel, and a second inner corner 116 is formed at the connection between the first sub-plate 114 and the second sub-plate 115, and the first inner corner 113 and the second inner corner 116 are combined to form a cavity structure 117. When the first inner corner 113 and the second inner corner 116 are combined to form a cavity structure 117, it is helpful to reduce the weight of the front cover structure 102. It can be understood that the first inner corner 113 refers to the recessed corner formed between the overlap portion 119 and the second enclosure portion 108; and the second inner corner 116 refers to the recessed corner formed between the first sub-plate 114 and the second sub-plate 115.

[0095] Fig. 9 is a cross-sectional view of another front cover structure 102 provided in an embodiment of the present application, see Fig. 9As shown, the extension portion 106 and the sealing portion 107 are an integral structure, the second enclosure portion 108 and the extension portion 106 are a split structure, and the overlap portion 119 and the second enclosure portion 108 are an integral structure. A first internal angle 113 is formed at the connection between the overlap portion 119 and the second enclosure portion 108, and the sealing portion 107 has a first external angle 118 that is shaped like the first internal angle 113, and the first external angle 118 extends into the first internal angle 113, so that the first external angle 118 and the first internal angle 113 cooperate to form a solid structure, which is conducive to increasing the contact area between the second enclosure portion 108 and the extension portion 106, thereby improving the stability of the connection between the two. It can be understood that the first external angle 118 refers to the protruding angle formed after the sealing portion 107 and the extension portion 106 are connected.

[0096] Fig.10 A cross-sectional view of another front cover structure 102 provided in an embodiment of the present application is shown in FIG. Fig.10 As shown, in some other possible embodiments, the extension portion 106 and the sealing portion 107 can be a split structure, the second enclosure portion 108 and the extension portion 106 can be a split structure, and the overlap portion 119 and the second enclosure portion 108 can be an integral structure, which facilitates the manufacture of various components; illustratively, the extension portion 106 and the sealing portion 107 extend into the first internal angle 113.

[0097] Fig.11 is a cross-sectional view of another front cover structure 102 provided in an embodiment of the present application, see Fig.11 As shown, the extension portion 106 and the sealing portion 107 are an integral structure, the second enclosure portion 108 and the extension portion 106 are an integral structure, and the sealing portion 107 and the second enclosure portion 108 are an integral structure. This eliminates the overlap portion 119, facilitates manufacturing, improves the strength of the overall structure of the front cover structure 102, simplifies the assembly of the front cover structure 102, and facilitates the assembly between the front cover structure 102 and the inner core 200.

[0098] Fig.12 is a cross-sectional view of another front cover structure 102 provided in an embodiment of the present application, see Fig.12As shown, the extension portion 106 and the sealing portion 107 are an integral structure, the second enclosure portion 108 and the extension portion 106 are a split structure, the overlap portion 119 and the second enclosure portion 108 are an integral structure, and the integral body formed by the overlap portion 119 and the second enclosure portion 108 and the integral body formed by the extension portion 106 and the sealing portion 107 are fixedly connected together by insert injection molding, which can improve the stability of the connection between the second enclosure portion 108 and the extension portion 106, thereby improving the overall stability of the front cover structure 102. For example, the integral insert formed by the overlap portion 119 and the second enclosure portion 108, and the integral body formed by the extension portion 106 and the sealing portion 107 are plastic. It should be noted that, in some other possible embodiments, the extension portion 106 can also be an integral structure with the second enclosure portion 108, while the sealing portion 107 and the extension portion 106 are split structures, the sealing portion 107 and the second enclosure portion 108 are split structures, and the whole formed by the extension portion 106 and the second enclosure portion 108 is fixedly connected to the sealing portion 107 by insert injection molding. For example, the sealing portion 107 is plastic, and the whole formed by the extension portion 106 and the second enclosure portion 108 is an insert.

[0099] In some embodiments, the sealing portion 107 is made of a non-magnetic material. The sealing portion 107 made of a non-magnetic material is not easily affected by the magnetic field, and the non-magnetic material will not affect the magnetic field around the first diaphragm 201, and can better maintain the vibration characteristics of the first diaphragm 201, which helps to ensure the acoustic performance of the speaker 100. The non-magnetic material can be metal or plastic.

[0100] Exemplarily, the material of the non-magnetic material is metal, and the metal is non-magnetic stainless steel. Non-magnetic stainless steel has stable chemical properties and structure, is not easily affected by environmental factors, and can ensure the long-term stable operation of the speaker 100; the non-magnetic stainless steel can be 304 stainless steel or 316 stainless steel. Since stainless steel is 304 stainless steel and 316 stainless steel, both have excellent corrosion resistance and mechanical properties, it is conducive to ensuring the stability of the structural strength of the speaker 100. When the material of the sealing part 107 is metal, it has the characteristics of good flatness and good supporting strength.

[0101] It should be noted that, in some other possible embodiments, the sealing portion 107 may be made of hard plastic, which can reduce the impact of the sealing portion 107 on the voice coil 213 of the speaker 100 .

[0102] Fig.13 is an exploded view of the core 200 provided in an embodiment of the present application, Fig.14 is a cross-sectional view of the core 200 provided in the embodiment of the present application, combined with Fig.13 and Fig.14As shown, the core 200 of the loudspeaker 100 further includes a bracket 202 , which is connected to the edge of the first diaphragm 201 . The bracket 202 is used to support the edge of the first diaphragm 201 so that the first diaphragm 201 can vibrate.

[0103] The bracket 202 and the front cover structure 102 cooperate to define a vibration cavity 211 . The bracket 202 has a first surface 203 and a second surface 204 opposite to each other. The first surface 203 faces the vibration cavity 211 , and the second surface 204 faces away from the vibration cavity 211 .

[0104] The core 200 also includes a magnetic circuit component, which includes a first magnet 205, a second magnet 206 and a first washer 207; the number of the second magnets 206 is multiple; the multiple second magnets 206 are distributed around the circumference of the first magnet 205, and there is a first gap 208 between the first magnet 205 and the second magnet 206, so that a magnetic circuit is formed between the first magnet 205 and the second magnet 206; the first washer 207 is fixedly connected to the side of the first magnet 205 facing the first diaphragm 201; the material of the first magnet 205 and the second magnet 206 is magnetic steel or magnet. The material of the first washer 207 is a magnetic conductive material, which can be a magnetic conductive metal, and the magnetic conductive metal is iron, cobalt or nickel. The second magnet 206 is fixedly connected to the bracket 202. For example, the bracket has a fixing plate 232, and the fixing plate 232 is fixedly connected to the side of the second magnet 206 facing the first diaphragm 201, for example, by bonding.

[0105] The core 200 further includes a basin frame 209, which is located on the side of the first magnet 205 facing away from the first diaphragm 201; the first magnet 205 and the second magnet 206 are respectively fixedly connected to the basin frame 209. The basin frame 209 is also provided with a plurality of third through holes 210, and a damping net 231 is also fixed on the basin frame 209, which covers the third through holes 210. The damping net 231 can prevent water and dust from entering the inside of the speaker 100 from the outside of the speaker 100, so as to ensure the stability of the acoustic performance of the speaker 100.

[0106] The core 200 also includes a skeleton 212 and a voice coil 213. The skeleton 212 is fixedly connected to the first diaphragm 201. The voice coil 213 is fixedly connected to the skeleton 212. Part of the structure of the voice coil 213 can extend into the first gap 208. When the voice coil 213 is energized, the first diaphragm 201 can vibrate to generate sound.

[0107] In some embodiments, the core 200 further includes a flexible circuit board 214. In the thickness direction of the speaker 100, the flexible circuit board 214 is located between the bracket 202 and the basin frame 209. One end of the flexible circuit board 214 is electrically connected to the voice coil 213. The other end of the flexible circuit board 214 can extend out of the core 200 and be connected to the internal circuit of the electronic device, such as the main board, to transmit the audio electrical signal to the voice coil 213. After the voice coil 213 is energized, it generates an induced magnetic field, which is displaced after being acted upon by the magnetic force of the magnetic circuit component, and drives the first diaphragm 201 and the skeleton 212 to vibrate together. The flexible circuit board 214 includes a fixing portion 215 and a vibrating portion 216. The fixing portion 215 is fixedly connected to at least one of the basin frame 209, the second magnet 206 or the bracket 202. The fixed connection method can be bonding or soldering. The vibration part 216 is suspended, and is fixedly connected to the voice coil 213 and electrically connected. The vibration part 216 is bent, which facilitates the deformation of the vibration part 216 so as to move with the voice coil 213 .

[0108] Combination Fig.13 and Fig.14 As shown, the first diaphragm 201 includes a flange structure 217, a folding ring 218 and a dome 219; the flange structure 217 is connected to the folding ring 218, and the dome 219 is fixedly connected to the folding ring 218; the flange structure 217 and the folding ring 218 form an integral structure and are annular, and the dome 219 is located in the middle of the integral structure formed by the flange structure 217 and the folding ring 218. In the thickness direction of the speaker 100, the dome 219 is located between the folding ring 218 and the frame 212. The folding ring 218 is fixedly connected to the bracket 202. Exemplarily, the folding ring 218 and the bracket 202 are fixedly connected by bonding.

[0109] The flange structure 217 is located on the side where the second surface 204 is located, and the flange structure 217 is arranged around the second surface 204, so that the flange structure 217 is conducive to increasing the connection area between the first diaphragm 201 and the bracket 202 to ensure the waterproof performance of the speaker 100. Exemplarily, the flange structure 217 and the second surface 204 can be fixedly connected by bonding.

[0110] Fig.15 2 is a schematic diagram of a structure in which the first diaphragm 201, the frame 212 and the voice coil 213 are assembled together in an embodiment of the present application. Fig.16 yes Fig.15 Bottom view of Fig.15 and Fig.16As shown, the skeleton 212 includes a support frame 220 and a plurality of connecting plates 221, and the plurality of connecting plates 221 are distributed at intervals in the circumferential direction of the support frame 220, the support frame 220 is connected to the connecting plates 221, the connecting plates 221 are fixedly connected to the surface of the first diaphragm 201, and the voice coil 213 is fixedly connected to the support frame 220. In this way, the connecting plates 221 of the skeleton 212 can be used to increase the connection area between the skeleton 212 and the first diaphragm 201, thereby ensuring the stability of the connection between the skeleton 212 and the first diaphragm 201, thereby ensuring the stability of the connection between the voice coil 213 and the first diaphragm 201, which is beneficial to ensuring the acoustic performance of the speaker 100; and the circumferential distribution of the connecting plates 221 in the support model can, on the one hand, reduce the overall weight of the skeleton 212, and on the other hand, help ensure the stability of the connection between the skeleton 212 and the first diaphragm 201, and reduce the possibility of debonding between the connecting plates 221 and the first diaphragm 201. Exemplarily, the connection plate 221 is fixedly connected to the dome 219 of the first diaphragm 201 , and the fixed connection may be performed by bonding.

[0111] Combination Fig.15 and Fig.16 As shown, the support frame 220 is in a quadrilateral shape, and connecting plates 221 are respectively connected to the four sides of the support frame 220; at least one connecting plate 221 is provided with a first through hole 222; in this way, connecting plates 221 are respectively arranged on the four sides of the support frame 220 to ensure the stability of the connection between the skeleton 212 and the first diaphragm 201, and the first through hole 222 is beneficial to reducing the overall weight of the skeleton 212.

[0112] It should be noted that in some other possible implementations, a second through hole or an open slot may be provided on the support frame 220 , so that using either the second through hole or the open slot is helpful to reduce the overall weight of the skeleton 212 .

[0113] Fig.17 yes Figure 3 The elevation diagram, Fig.18 is along Fig.17 Cross-sectional view of line EE; combined Fig.17 and Fig.18As shown, after the front cover structure 102 and the inner core 200 are assembled separately, the front cover structure 102 is assembled with the inner core 200, and the connection between the front cover structure 102 and the inner core 200 can be bonding. Exemplarily, the side of the second enclosure 108 facing the flange structure 217 is connected to the flange structure 217, and the sealing portion 107 is connected to the folding ring 218. By connecting the second enclosure 108 with the flange structure 217, the stability of the fixed connection between the front cover structure 102 and the inner core 200 is ensured, and the waterproofness of the speaker 100 can also be ensured. When the front cover structure 102 and the inner core 200 are assembled, the glue applied between the sealing portion 107 and the folding ring 218 will overflow into the gap between the second enclosure 108 and the flange structure 217, so that the second enclosure 108 and the flange structure 217 are bonded. It should be noted that Fig.18 It is shown in Figure 7 Schematic diagram of the assembly between the middle front cover structure 102 and the core 200; any core 200 and any front shell structure provided in the embodiment of the present application can also be arbitrarily combined, which will not be repeated here.

[0114] Fig.19 is a structural schematic diagram of another speaker 100 provided in an embodiment of the present application; Fig. 20 yes Fig.19 A top view of Fig.21 is along Fig. 20 Sectional view of the FF line; combined Fig.19 , Fig. 20 and Fig.21 As shown, the speaker 100 includes a shell 223 and a core 200 in any embodiment of the present application; the shell 223 has a shell cavity, and the core 200 is installed in the shell cavity; the shell 223 also has a sound outlet channel 224, and the sound outlet channel 224 is connected to the sound outlet hole 305 on the shell 302 of the electronic device.

[0115] The inner core 200 divides the shell cavity into a front cavity 225 and a rear cavity 226, and the front cavity 225 is connected to the sound outlet channel 224. The shell cavity of the outer shell 223 has a fourth surface 227, and the fourth surface 227 is annular. The fourth surface 227 is connected to the edge of the first diaphragm 201, so as to fix the edge of the first diaphragm 201 to ensure that when the first diaphragm 201 vibrates, the first diaphragm 201 is not easily separated from the bracket 202. Exemplarily, the fourth surface 227 is connected to the folding ring 218 of the first diaphragm 201. The fourth surface 227 can only abut against the edge of the first diaphragm 201, but not bonded. Of course, in some other possible implementations, the fourth surface 227 can also be bonded to the edge of the first diaphragm 201, and the first diaphragm 201 is supported and pressed by the fourth surface 227.

[0116] In some embodiments, the inner cavity of the outer shell 223 may also have a fifth surface 228, which is connected to the fourth surface 227, and the fourth surface 227 and the fifth surface 228 are not arranged in parallel; the fifth surface 228 is abutted or bonded to the flange structure 217, so that the fourth surface 227 and the fifth surface 228 cooperate to achieve support and fixation of the first diaphragm 201.

[0117] In some embodiments, the housing 223 includes a first sub-shell 229 and a second sub-shell 230, which are fixedly connected to form a housing cavity; the fourth surface 227 and the fifth surface 228 are disposed on the first sub-shell 229. The first sub-shell 229 may be made of plastic.

[0118] In some embodiments, in order to distinguish the speakers 100 at different positions of the electronic device, the speaker 100 located at the top 306 of the electronic device in the embodiment of the present application is called the first speaker, and the speaker 100 located at the bottom 307 of the electronic device is called the second speaker. The first speaker can be any speaker 100 having a front cover structure 102 and a core 200 provided in the embodiment of the present application. For example, the first speaker can be Figure 3 The second speaker can be any speaker 100 having a housing 223 and a core 200 provided in the embodiment of the present application. For example, the second speaker can be Fig.19 The speaker 100 shown. In this way, the core 200 of the speakers 100 at different positions in the electronic device in the embodiment of the present application can be shared, that is, the speakers 100 at different positions use the same structure and the same size core 200, which is conducive to simplifying the assembly process of the electronic device and reducing the manufacturing cost of the electronic device.

[0119] In the description of the specification of the present application, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0120] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A front cover structure for a speaker, the speaker comprising a first diaphragm, characterized in that: The front cover structure includes a cover top, a first enclosure portion, an extension portion, a sealing portion and a second enclosure portion, wherein the first enclosure portion is arranged around the circumference of the cover top, one side of the first enclosure portion is connected to the edge of the cover top, and the other side opposite to the first enclosure portion is connected to the extension portion, the sealing portion is connected to the extension portion, the sealing portion is used to be connected to the first diaphragm, the extension portion is connected to the second enclosure portion, and the second enclosure portion is used to be arranged around the circumference of the first diaphragm.

2. The front cover structure according to claim 1, characterized in that: In the thickness direction of the speaker, the sealing portion is located between the extending portion and the first diaphragm; The extending portion and the sealing portion are in a separate structure, or the extending portion and the sealing portion are in an integrated structure.

3. The front cover structure according to claim 2, characterized in that: The second enclosure portion and the extension portion are an integrated structure.

4. The front cover structure according to claim 2, characterized in that: The second enclosing portion and the extension portion are a split structure, wherein the front cover structure also includes an overlapping portion, the overlapping portion and the second enclosing portion are an integral structure, the second enclosing portion and the extension portion are connected via the overlapping portion, the extension portion has relative inner and outer side surfaces, the inner side surface faces the first diaphragm, the outer side surface faces away from the first diaphragm, and the overlapping portion is connected to the outer side surface of the extension portion.

5. The front cover structure according to claim 4, characterized in that: When the extension portion and the sealing portion are an integral structure, and the second enclosure portion and the extension portion are a separate structure, the overlap portion and the second enclosure portion are non-parallel, and a first internal angle is formed at the connection between the overlap portion and the second enclosure portion; The sealing portion includes a first sub-plate and a second sub-plate connected to the first sub-plate, the first sub-plate and the second sub-plate are arranged non-parallel to each other, the connection between the first sub-plate and the second sub-plate forms a second internal angle, the first internal angle and the second internal angle are combined to form a cavity structure; or, the sealing portion has a first external angle that is similar in shape to the first internal angle, and the first external angle extends into the first internal angle.

6. The front cover structure according to claim 2, characterized in that: The sealing portion is ring-shaped and is used to be connected to the edge of the first diaphragm.

7. The front cover structure according to any one of claims 1 to 6, characterized in that: The sealing part is made of non-magnetic material.

8. The front cover structure according to any one of claims 1 to 6, characterized in that: The sealing part is made of non-magnetic stainless steel or plastic.

9. The front cover structure according to claim 8, characterized in that: When the sealing portion is made of non-magnetic steel, the non-magnetic stainless steel is 304 stainless steel or 316 stainless steel.

10. A loudspeaker, characterized in that: It comprises a core and a front cover structure as described in any one of claims 1 to 9, wherein the core comprises a first diaphragm; and the core is fixedly connected to the front cover structure.

11. The loudspeaker according to claim 10, characterized in that The core also includes a skeleton and a voice coil; the skeleton includes a support frame and a plurality of connecting plates, the plurality of connecting plates are distributed at intervals around the circumference of the support frame, the support frame is connected to the connecting plates, the connecting plates are fixedly connected to the surface of the first diaphragm, and the voice coil is fixedly connected to the support frame.

12. The loudspeaker according to claim 11, characterized in that The support frame is quadrilateral, and the four sides of the support frame are respectively connected to the connecting plates; At least one of the connecting plates is provided with a first through hole, and / or the supporting frame is provided with a second through hole or an open groove.

13. The loudspeaker according to any one of claims 10 to 12, characterized in that: The first diaphragm includes a flange structure, a folding ring and a dome; the flange structure is connected to the folding ring, and the dome is fixedly connected to the folding ring; The core further comprises a bracket, the bracket and the front cover structure cooperate to define a vibration cavity, the bracket having a first surface and a second surface opposite to each other, the first surface faces the vibration cavity, and the second surface faces away from the vibration cavity; The folding ring is fixedly connected to the bracket, the flange structure is located on the side where the second surface is located, the flange structure is arranged around the second surface, the side of the second enclosure portion facing the flange structure is connected to the flange structure, and the sealing portion is connected to the folding ring.

14. An electronic device, characterized in that: It comprises a housing and a first speaker; the first speaker is a speaker as claimed in any one of claims 10 to 13, or the first speaker comprises a front cover structure as claimed in any one of claims 1 to 9; The first speaker is installed in the housing.

15. An electronic device, characterized in that: It comprises a housing, a first speaker and a second speaker; the first speaker is a speaker as claimed in any one of claims 10 to 13; The second speaker comprises the core of the speaker as claimed in any one of claims 10 to 13; The first speaker and the second speaker are installed in the housing.

16. The electronic device according to claim 15, characterized in that: The second speaker comprises a housing, the housing has a housing cavity, and the core is installed in the housing cavity; the first diaphragm has a flange structure and a folding ring; The shell cavity of the shell has a fourth surface and a fifth surface, the fourth surface is in contact with the folding ring, and the fifth surface is in contact with the flange structure.

Images